Surface Water Supply 

of the United States 

1957

Part 11. Pacific Slope Basins in California

Prepared under the direction of J. V. B. WELLS, Chief, Surface Water Branch 

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1515

Prepared in cooperation with the States 

of California and Oregon and with other 

agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1959
UNITED STATES DEPARTMENT OF THE INTERIOR 

FRED A. SEATON, Secretary

GEOLOGICAL SURVEY 

Thomas B. Nolan, Director

For sale by the Superintendent of Documents, U.S. Government Printing Office 

Washington 25, D.C. - Price $2 (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation 

with the States of California and Oregon and with other agencies, by 

personnel of the Water Resources Division, L. B. Leopold, chief, under 

the general direction of J. V. B. Wells, chief, Surface Water Branch, 

and F. J. Flynn, chief, Basic Records Section.

The data were collected and computed under supervision of district 

engineers, Surface Water Branch, as follows:

R. S. Lord......- ......... _ ____._.-_.___ .^_.__ Menlo Park, Calif.

K. N. Phillips. ................ --______________ ...__ ..Portland, Oreg.

Ill
CALENDAR FOR WATER YEAR 1957

OCTOBER 1956

S M T W T F S 

123456

7 8 9 10 11 12 13 

14 15 16 17 18 19 20 

21 22 23 24 25 26 27 

28 29 30 31

JANUARY 1957

5 M T W T F S 

12345

6 7 8 9 10 11 12

13 14 15 16 17 18 19

20 21 22 23 24 25 26

27 28 29 30 31

APRIL 1957

S M T W T F S 

123456

7 8 9 10 11 12 13 

14 15 16 17 18 19 20 

21 22 23 24 25 26 27 

28 29 30

JULY 1957

S M T W T F S 

123456

7 8 9 10 11 12 13 

14 15 16 17 18 19 20 

21 22 23 24 25 26 27 

28 29 30 31

IV

NOVEMBER 1956

S M T W T F S 

123

4 5 6 7 8 9 10 

11 12 13 14 15 16 17 

18 19 20 21 22 23 24 

25 26 27 28 29 30

FEBRUARY 1957

S M T W T F S 

1 2

3456789 

10 11 12 13 14 15 16 

17 18 19 20 21 22 23 

24 25 26 27 28

MAY 1957

S M T W T F S 

1234

5 6 7 8 9 10 11 

12 13 14 15 16 17 18 

19 20 21 22 23 24 25 

26 27 28 29 30 31

AUGUST 1957

S M T W T F S 

123

4 5 6 7 8 9 10 

11 12 13 14 15 16 17 

18 19 20 21 22 23 24 

25 26 27 28 29 30 31

DECEMBER 1956

S M T W T F S 

1

2345678

9 10 11 12 13 14 15

16 17 18 19 20 21 22

23 24 25 26 27 28 29

30 31

MARCH 1957

S M T W T F S 

1 2

3456789 

10 11 12 13 14 15 16 

17 18 19 20 21 22 23 

24 25 26 27 28 29 30 

31

JUNE 1957

S M T W T F S 

1

2345678

9 10 11 12 13 14 15

16 17 18 19 20 21 22

23 24 25 26 27 28 29

30

SEPTEMBER 1957

S M T W T F S

1234567

8 9 10 11 12 13 14

15 16 17 18 19 20 21

22 23 24 25 26 27 28

29 30
CONTENTS

Page 

Scope of work........................................................................ 1

Cooperation.......................................................................... 1

Division of work..................................................................... 2

Definition of terms and abbreviations................................................ 2

Downstream order of listing gaging stations.......................................... 3

Explanation of data.................................................................. 3

Accuracy of field data and computed results.......................................... 7

Publications......'................................................................... 8

Records of discharge collected by agencies other than the Geological Survey.......... 12

Hydrologic conditions................................................................ 15

Gaging-station records............................................................... 17

Tia Juana River basin

Cottonwood Creek (head of Tia Juana River) at Morena Dam, Calif.................... 17

Cottonwood Creek at Barrett Dam, near Dulzura, Calif............................... 18

Dulzura conduit near Dulzura, Calif.............................................. 19

Cottonwood Creek above Tecate Creek, near Dulzura, Calif,.......................... 20

Tecate Creek:

Campo Creek near Campo, Calif.................................................. 20

Tia Juana River near Dulzura, Calif................................................ 21

Tia Juana River near Nestor, Calif................................................. 22

Otay River basin

Jamul Creek (head of Otay River) near Jamul, Calif................................. 23

Otay River at Savage Dam, Calif.................................................... 24

Sweetwater River basin

Sweetwater River near Descanso, Calif.............................................. 25

Sweetwater River at Loveland Dam, near Alpine, Calif............................... 27

Sweetwater River at Sweetwater Dam, Calif. ..........."... ......,.................... 28

San Diego River basin 

San Diego River:

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif.......................... 29

San Diego River at El Capitan Dam, Calif........................................... 30

San Diego River near Santee, Calif. ................................................. 31

San Dieguito River basin

Santa Ysabel Creek (head of San Dieguito River) at Sutherland Dam, Calif........... 32

Santa Ysabel Creek near Ramona, Calif.............................................. 33

Santa Ysabel Creek near San Pasqual, Calif,........................................ 34

Guejito Creek near San Pasqual, Calif............................................ 35

Santa Maria Creek near Ramona, Calif. ............................................ 36

San Dieguito River near San Pasqual, Calif......................................... 37

San Dieguito River at Lake Hodges, Calif........................................... 37

San Luis Rey River basin 

San Luis Rey River: 

West Fork San Luis Rey River near Warner Springs, Calif.......................... 38

San Luis Rey River at Lake Henshaw, near Mesa Grande, Calif........................ 39

San Luis Rey River below Pala diversion dam, near Pala, Calif...................... 39

San Luis Rey River at Monserate Narrows, near Pala, Calif.......................... 40

San Luis Rey River near Bonsall, Calif............................................. 40

San Luis Rey River at Oceanside, Calif,............................................ 40

Santa Margarita River basin

Temecula Creek (head of Santa Margarita River) at Vail Dam, Calif..,,....,...,..... 41

Murrietta Creek at Temecula, Calif............................................... 42

Santa Margarita River near Temecula, Calif......................................... 43

Santa Margarita River near Pallbrook, Calif........................................ 44

De Luz Creek near Pallbrook, Calif............................................... 45

O'Neill ditch near Ysidora, Calif................................................ 49

Santa Margarita River at Ysidora, Calif............................................ 49

San Juan Creek basin

San Juan Creek near San Juan Capistrano, Calif..................................... 50

Arroyo Trabuco near San Juan Capistrano, Calif................................... 52

Allso Creek basin

Aliso Creek at El Toro, Calif...................................................... 52

f

eters Canyon Wash basin 

eters Canyon Wash: 

San Diego Creek near Irvine, Calif............................................... 53

Santa Ana River basin 

Santa Ana River: 

Bear Creek: 

Big Bear Lake near Big Bear Lake, Calif.......................................... 54

Santa Ana River near Mentone, Calif................................................ 55

Mill Creek near Yucaipa, Calif.................................................... 57

Mill Cre'ek near Mentone , Calif................................................... 59

Plunge Creek near East Highlands, Calif.......................................... 60

Santa Ana River near San Bernardino, Calif.,,........,.,,.,..,.,...........,,...,., 62

San Timoteo Creeki

Little San Gorgonio Greek near Beaumont, Calif................................. 63

San Timoteo Creek near Redlands, Calif........................................... 63

San Timoteo Creek near Loma Linda, Calif......................................... 64

Warm Creek:

East Twin Creek near Arrowhead Springs, Calif.................................. 65

Waterman Canyon Creek near Arrowhead Springs, Calif............................ 66

City Creek near Highland, Calif................................................ 67

Devil Canyon Creek near San Bernardino, Calif.................................. 69

V
VI CONTENTS

Gaging-station records Continued 

Santa Ana River basin Continued

Warm Creek Continued Page 

Lytle Creek near Fontana, Calif................................................ 70

Cajon Creek near Keenbrook, Calif............................................ 72

Lone Pine Creek near Keenbrook, Calif...................................... 73

Lytle Creek (east channel) at San Bernardino, Calif............................ 74

Warm Creek near Colton, Calif.................................................... 75

Santa Ana River at Riverside Narrows, near Arlington, Calif........................ 77

Day Creek near Etiwanda, Calif................................................... 78

Santa Ana River at Hamner Avenue, near Corona, Calif............................... 80

Santa Ana River at Auburndale Bridge, near Corona, Calif.......................... 81

Cucamonga Creek near Upland, Calif............................................... 82

San Jacinto River near San Jacinto, Calif........................................ 83

Bautista Creek near Hemet, Calif............................................... 84

San Jacinto River near Elsinore, Calif........................................... 85

Elsinore Lake at Elsinore, Calif................................................. 86

Temescal Creek near Corona, Calif................................................ 86

Chino Creek;

San Antonio Creek near Claremont, Calif........................................ 87

Santa Ana River below Prado Dam, Calif............................................. 89

Santa Ana River at county line, below Prado Dam, Calif ....... ^..................... 90

Santiago Creek at Santiago Dam, near Villa Park, Calif........................... 91

Santiago Creek near Villa Park, Calif............................................ 92

Santiago Creek at Santa Ana, Calif............................................... 93

Santa Ana River at Santa Ana, Calif................................................ 94

San Gabriel River basin

East Fork San Gabriel River near Camp Bonita, Calif................................ 95

West Fork San Gabriel River at Camp Rincon, Calif................................ 96

San Gabriel River near Azusa, Calif................................................ 97

Rogers Creek near Azusa, Calif................................................... 98

Fish Creek near Duarte, Calif.................................................... 99

San Gabriel River below Sante Fe Dam, near Baldwin Park, Calif..................... 100

Walnut Creek:

San Dimas Creek below San Dimas Dam, Calif..................................... 100

Dalton Creek near Glendora, Calif..................;........................... 101

Little Dalton Creek near Glendora, Calif..................................... 102

San Gabriel River above Whittier Narrows Dam, Calif................................ 103

San Jose Creek near Whittier, Calif.............................................. 104

San Gabriel River at Pico, Calif................................................... 105

San Gabriel River at Spring Street, near Los Alamitos, Calif....................... 106

Coyote Creek:

Brea Creek below Brea Dam, near Fullerton, Calif............................... 107

Brea Creek at Fullerton, Calif................................................. 108

Fullerton Creek below Fullerton Dam. near Brea, Calif. ....................... 109

Coyote Creek near Artesia, Calif................................................. 110

Carbon Creek near Yorba Linda, Calif........................................... Ill

Los Angeles River basin

Los Angeles River at Sepulveda Dam, Calif.......................................... 112

Pacoima Creek near San Fernando, Calif........................................... 113

Tujunga Creek below Mill Creek, near Colby Ranch, Calif.......................... 114

Tujunga Creek near Sunland, Calif................................................ 115

Haines Creek near Tujunga, Calif............................................... 116

Little Tujunga Creek near San Fernando, Calif.................................. 117

Tujunga Creek below Hansen Dam, Calif............................................ 118

Los Angeles River at Los Angeles, Calif............................................ 119

Arroyo Seco near Pasadena, Calif................................................. 120

Los Angeles River near Downey, Calif............................................... 121

Rio Hondo:

Sawpit Creek near Monrovia, Calif.............................................. 122

Santa Anita Creek near Sierra Madre, Calif..................................... 123

Little Santa Anita Creek near Sierra Madre, Calif............................ 124

Eaton Creek near Pasadena , Calif............................................... 125

Rio Hondo above Whittier Narrows Dam, Calif...................................... 126

Rio Hondo near Montebello, Calif................................................. 127

Mission Creek near Montebello, Calif........................................... 128

Mission Creek below Whittier Narrows Dam, Calif................................ 129

Rio Hondo near Downey, Calif. .................................................... 130

Los Angeles River at Long Beach,Calif.............................................. 131

Ballona Creek basin

Ballona Creek near Culver City, Calif.............................................. 132

Topanga Creek basin

Topanga Creek near Topanga Beach, Calif............................................ 133

Malibu Creek basin

Malibu Creek at Crater Camp, near Calabasas, Calif................................. 134

Santa Clara River basin

Santa Clara River at Los Angeles-Ventura County line, Calif........................ 135

Piru Creek above Lake Piru, Calif................................................ 136

Lake Piru near Piru, Calif....................................................... 137

Piru Creek below Santa Felicia Dam, Calif........................................ 138

Hopper Creek near Piru, Calif.................................................... 139

Sespe Creek near Wheeler Springs, Calif.......................................... 140

Sespe Creek near Fillmore, Calif................................................. 141

Santa Paula Creek near Santa Paula, Calif........................................ 143

Ventura River basin

Matilija Creek (head of Ventura River) above reservoir, near Matilija Hot Springs,

Calif........................................................................ 144

Matilija Reservoir at Matilija Hot Springs, Calif.................................. 145

Matilija Creek at Matilija Hot Springs, Calif...................................... 146

North Fork Matilija Creek at Matilija Hot Springs, Calif......................... 147
CONTENTS VII

Gaging-station records Continued

Ventura River basin Continued

Ventura River: Page 

San Antonio Creek at Casitas Springs, Calif...................................... 148

Coyote Creek near Ventura, Calif................................................. 149

Ventura River near Ventura, Calif.................................................. 150

Carpinteria Creek basin

Carpinteria Creek near Carpinteria, Calif .......................................... 152

Atascadero Creek basin

Atascadero Creek near Goleta, Calif................................................ 153

San Jose Creek basin

San Jose Creek near Goleta, Calif.................................................. 154

Santa Ynez River basin

Santa Ynez River at Jameson Lake, near Montecito, Calif............................ 155

Santa Ynez River above Gibraltar Dam, near Santa Barbara, Calif.................... 156

Santa Ynex River below Gibraltar Dam, near Santa Barbara, Calif.................... 157

Santa Ynez River below Los Laureles Canyon, near Santa Ynez, Calif................. 158

Santa Cruz Creek near Santa Ynez, Calif.......................................... 159

Cachuma Creek near Santa Ynez, Calif............................................. 160

Cachuma Reservoir near Santa Ynez, Calif........................................... 161

Santa Ynez River near Santa Ynez, Calif............................................ 162

Santa Agueda Creek near Santa Ynez, Calif........................................ 163

Zanja Cota near Santa Ynez, Calif................................................ 164

Santa Ynez River at Grand Avenue, near Santa Ynez, Calif........................... 165

Santa Ynez River at Solvang, Calif............................'..................... 166

Santa Ynez River at Buellton, Calif................................................ 167

La Zaca Creek at Buellton, Calif................................................. 168

Santa Ynez River near Buellton, Calif.............................................. 169

Santa Ynez River at Santa Rosa dam site, near Buellton, Calif...................... 170

Santa Ynez River at Cooper's Reef, near Lompoc, Calif.............................. 171

Santa Ynez River below Santa Rita Creek, near Lompoc, Calif........................ 172

Salsipuedes Creek near Lompoc, Calif............................................. 173

Santa Ynez River at narrows, near Lompoc, Calif.................................... 174

Santa Ynez River near Lompoc, Calif................................................ 175

Santa Ynez River at H Street, near Lompoc, Calif................................... 176

Santa Ynez River at 13th Street, near Lompoc, Calif................................ 176

Santa Ynez River at barrier, near Surf, Calif ...................................... 177

San Antonio.Creek basin

San Antonio Creek near Casmalia, Calif............................................. 178

Santa Maria River basin

Cuyama River (head of Santa Maria River) near Ventucopa, Calif..................... 179

Cuyama River near Santa Maria, Calif............................................... 180

Alamo Creek near Santa Maria, Calif.............................................. 181

Huasna River near Santa Maria, Calif............................................. 182

Sisquoc River near Sisquoc, Calif................................................ 183

La Brea Creek near Sisquoc, Calif.............................................. 184

Tepusquet Creek near Sisquoc, Calif............................................ 184

Sisquoc River near Garey, Calif.................................................. 185

Santa Maria River at Guadalupe, Calif.............................................. 185

Arroyo Grande basin

Arroyo Grande at Arroyo Grande, Calif............................................... 186

Arroyo de la Cruz basin

Arroyo de la Cruz near San Simeon, Calif........................................... 187

Sur River basin

Sur River at Big Sur, Calif........................................................ 188

Salinas River basin

Salinas River near Pozo, Calif..................................................... 189

Toro Creek near Pozo, Calif...................................................... 190

Salinas Reservoir near Pozo, Calif................................................ 191

Salinas River above Pilitas Creek, near Santa Margarita, Calif..................... 192

Jack Creek near Templeton, Calif................................................. 193

Salinas River at Paso Robles, Calif................................................ 194

Estrella Creek near Estrella, Calif.............................................. 195

Nacimiento River near Bryson, Calif.............................................. 196

Nacimiento River near San Miguel, Calif.......................................... 197

San Antonio River at Pleyto, Calif............................................... 198

Salinas River near Bradley, Calif.................................................. 199

Arroyo Seco near Soledad, Calif.................................................. 200

Salinas River near Spreckels, Calif................................................ 201

Pa.laro River basin

Pajaro River:

Pacheco Creek near Dunneville, Calif............................................. 202

Llagas Creek near Morgan Hill, Calif............................................. 203

Carnadero Creek:

Uvas Creek near Morgan Hill, Calif............................................. 204

San Benito River near Willow Creek School, Calif................................. 205

Tres Pinos Creek near Tres Pinos, Calif........................................ 206

San Benito River near Hollister, CaUf........................................... 207

Pajaro River at Chittenden, Calif.................................................. 208

Corralitos Creek at Freedom, Calif............................................... 209

Soquel Creek basin

Soquel Creek at Soquel, Calif...................................................... 210

San Lorenzo River basin

San Lorenzo River at Big Trees, Calif.............................................. 211

San Lorenzo River at Santa Cruz, Calif............................................. 212

Branciforte Creek at Santa Cruz, Calif........................................... 213

Pescadero Creek basin

Pescadero Creek near Pescadero, Calif.............................................. 214

San Franclsqulto Creek basin

San Francisquito Creek at Stanford University, Calif............................... 215
VIII CONTENTS

Gaging-station records Continued

Matadero Creek basin Page 

Matadero Creek at Palo Alto, Calif................................................. 216

Stevens Creek basin

Stevens Creek near Cupertlno, Calif................................................. 217

Guadalupe River basin

Alamltos Creek (head of Guadalupe River) near Edenvale, Calif...................... 218

Guadalupe Creek at Guadalupe, Calif.............................................. 219

Guadalupe River;

Los Gatos Creek at Los Gatos, Calif.............................................. 220

Guadalupe River at San Jose, Calif................................................. 221

Saratoga Creek at Saratoga, Calif................................................ 222

Coyote Creek basin

Coyote Creek near Madrone, Calif................................................... 223

Coyote Creek near Edenvale, Calif.................................................. 224

Alameda Creek basin

Alameda Creek near Nlles, Calif.................................................... 225

San Lorenzo Creek basin

San Lorenzo Creek at Hayward, Calif................................................ 227

Pacheco Creek basin

Walnut Creek (head of Pacheco Creek):

San Ramon Creek at San Ramon, Calif.............................................. 228

San Ramon Creek at Walnut Creek, Calif........................................... 229

Walnut Creek at Walnut Creek, Calif................................................ 230

Pine Creek:

Gallndo Creek at Concord, Calif................................................ 231

Pine Creek at Concord, Calif..................................................... 232

Grayson Creek near Hookston, Calif............................................... 233

Grayson Creek near Pacheco, Calif................................................ 234

Kern River basin 

Kern River; 

Golden Trout Creek near Cartago, Calif........................................... 235

Kern River near Kernvllle, Calif................................................... 236

Kern River at Kernvllle, Calif..................................................... 237

Borel Canal below Isabella Dam, Calif............................................ 238

South Pork Kern River near Olancha, Calif........................................ 239

South Pork Kern River near Onyx, Calif........................................... 240

Isabella Reservoir near Isabella, Calif .......................^.................... 241

Kern River below Isabella Dam, Calif............................................... 242

Kern River near Democrat Springs, Calif............................................ 243

Kern River below Kern Canyon powerhouse, Calif..................................... 244

Tulare Lake basin

Tulare Lake In Kings County, Calif................................................. 244

Middle Fork Tule River:

North Pork of Middle Pork Tule River, near Springville, Calif.................. 245

Tule River near Porterville, Calif............................................... 246

South Pork Tule River near Success, Calif...................................... 247

Tule River at Worth Bridge, near Porterville, Calif.............................. 248

Middle Fork Kaweah River:

Marble Pork Kaweah River at Potwisha Camp, Calif............................... 249

North Pork Kaweah River at Kaweah, Calif........................................ 250

Kaweah River near Three Rivers, Calif............................................ 251

South Pork Kings River near Cedar Grove, Calif................................... 252

Kings River near Hume, Calif..................................................... 253

Kings River above North Pork, Calif.............................................. 254

North Fork Kings River below Meadow Brook, Calif............................... 255

Fleming Creek near Blackcap Mountain, Calif..........................'........ 256

Post Corral Creek near Blackcap Mountain, Calif.............................. 257

Helms Creek at Sand Meadows, Calif........................................... 258

North Pork Kings River near Cliff Camp, Calif.................................. 259

Kings River below North Fork, Calif.............................................. 260

Big Creek above Pine Flat Reservoir, Calif.........'............................ 261

Sycamore Creek above Pine Flat Reservoir, Calif................................ 262

Pine Flat Reservoir near Piedra, Calif........................................... 263

Kings River below Pine Flat Dam, Calif........................................... 264

Kings River at Piedra, Calif..................................................... 265

Los Gatos Creek above Nunez Canyon, near Coalinga, Calif......................... 266

San Joaquin River basin 

Middle Pork San Joaquin River;

North Fork San Joaquin River below Iron Creek, Calif............................. 267

San Joaqulh River at Miller Crossing, Calif........................................ 268

Granite Greek near Cattle Mountain, Calif......................................... 269

South Fork San Joaquin River:

Florence Lake near Big Creek, Calif.............................................. 270

Ward tunnel at intake, Calif................................................... 271

South Fork San Joaquin River near Florence Lake, Calif........................... 272

Bear Creek near Lake Thomas A. Edison, Calif................................... 273

Lake Thomas A. Edison near Big Creek, Calif.................................... 274

Mono Creek below Lake Thomas A. Edison, Calif. t ................................ 275

Jackass Creek near Jackass Meadow, Calif......................................... 276

Chlqulto Creek near Arnold Meadow, Calif......................................... 277

San Joaquin River above Big Creek, Calif........................................... 278

Big Creek: 

Ward tunnel at outlet, Calif................................................... 279

Huntington Lake near Big Creek, Calif............................................ 280

Big Creek below Huntington Lake, Calif........................................... 281

Pitman Creek below Tamarack Creek, Calif....................................... 282

Stevenson Creek;

Huntington-Shaver conduit at outlet, Calif..................................... 283

Shaver Lake near Big Creek, Calif................................................ 284

San Joaquin River above Willow Creek, near Auberry, Calif.......................... 285
CONTENTS IX

Gaging-station records Continued 

San Joaquin River basin--Continued 

North Fork Willow Creek:

Bass Lake: Page

Pacific Qas & Electric Co. conduit Mo. 3 near Bass Lake, Calif................. 286

North Fork Willow Creek near Bass Lake, Calif.................................... 287

Willow Creek at mouth, near Auberry, Calif....................................... 288

San Joaquin River below Kerckhoff powerhouse, Calif................................. 289

Fine Gold Creek near Friant, Calif............................................... 290

Millerton Late at Friant, Calif.................................................... 291

Friant-Madera Canal at Friant, Calif............................................. 292

Friant-Kern Canal at Friant, Calif............................................... 293

San Joaquin River below Friant, Calif.............................................. 294

Little Dry Creek at mouth, near Friant, Calif.................................... 295

San Joaquin River near Biola, Calif................................................ 296

Fresno River near Knowles, Calif................................................. 297

Fresno River near Daulton, Calif................................................. 299

Chowchilla River at Buchanan dam site, Calif..................................... 300

Salt Slough near Los Banos, Calif................................................ 301

San Joaquin River at Fremont Ford Bridge, Calif.................................... 302

Merced River at Happy Isles Bridge, near Yosemite, Calif......................... 303

Tenaya Creek near Yosemite, Calif.............................................. 304

Merced River at Pohono Bridge, near Yosemite, Calif.............................. 305

South Fork Merced River near El Portal, Calif.......'........................... 306

Merced River at Bagby, Calif..................................................... 307

Lake McClure at Exchequer, Calif................................................. 308

Merced River at Exchequer, Calif................................................. 309

Merced River near Stevinson, Calif............................................... 311

Merced River Slough near Newman, Calif......................................... 312

San Joaquin River near Newman, Calif................................................ 312

Orestimba Creek near Newman, Calif............................................... 313

Tuolumne River:

Falls Creek near Hetch Hetchy, Calif........................................... 314

Hetch Hetchy Reservoir at Hetch Hetchy, Calif..................'.................. 315

Tuolumne River near Hetch Hetchy, Calif...........'...-............................ 316

Cherry Creek:

Lake Lloyd near Hetch Hetchy, Calif............................................ 317

Cherry Creek below Cherry Valley Dam, near Hetch Hetchy, Calif................. 318

Eleanor Creek:

Lake Eleanor near Hetch Hetchy, Calif........................................ 319

Eleanor Creek near Hetch Hetchy, Calif....................................... 320

Cherry Creek Canal near Early Intake, Calif................................. 321

Cherry Creek near Early Intake, Calif.......................................... 322

South Fork Tuolumne River near Oakland Recreation Camp, Calif.................. 323

Middle Tuolumne River at Oakland Recreation Camp, CalJ.f...................... 324

Woods Creek near Jacksonville, Calif........................................... 325

Don Pedro Reservoir near La Grange, Calif........................................ 326

Tuolumne River above La Grange Dam, near La Grange, Calif........................ 327

Modesto Canal near La Grange, Calif............................................ 328

Turlock Canal near La Grange, Calif............................................ 329

Tuolumne River at Modesto, Calif..........'....................................... 330

Middle Fork Stanislaus River at Kennedy Meadows, Calif........................... 331

Clark Fork Stanislaus River near Dardanelle, Calif............................. 332

Middle Fork Stanislaus River at Hells Half Acre Bridge, Calif.................... 333

Lake Hartley near Strawberry, Calif.............................................. 334

Middle Fork Stanislaus River below Beardsley Dam, Calif.......................... 335

Middle Fork Stanislaus River at Sand Bar Flat, near Avery, Calif................. 336

North Fork Stanislaus River below Silver Creek, Calif.......................... 337

Highland Creek below Spicer Meadows Reservoir, Calif......................... 338

North Fork Stanislaus River near Avery, Calif.................................. 339

South Fork Stanislaus River at Strawberry, Calif............................... 340

Philadelphia Canal near Strawberry, Calif.................................... 341

Tuolumne Canal near Long Barn, Calif......................................... 342

South Fork Stanislaus River near Long Barn, Calif.............................. 343

Stanislaus River:

Melones Reservoir at Melones Dam, Calif.......................................... 344

Stanislaus River below* Melones powerhouse, Calif................................. 345

South San Joaquin Canal near Knights Ferry, Calif.............................. 346

Oakdale Canal near Knights Ferry, Calif........................................ 347

Stanislaus River below Goodwin Dam, near Knights Ferry, Calif.................... 348

Stanislaus River at Ripon, Calif................................................. 349

San Joaquin River near Vernalis, Calif............................................. 350

South Fork Calaveras River:

San Domingo Creek near San Andreas, Calif...................................... 351

San Antonio Creek near San Andreas, Calif...................................... 352

South Fork Calaveras River near San Andreas, Calif............................... 353

Calaveritas Creek near San Andreas, Calif...................................... 354

North Fork Calaveras River:

Esperanza Creek near Mokelumne Hill, Calif................................... 355

Jesus Maria Creek near Mokelumne Hill, Calif................................. 356

North Fork Calaveras River near San Andreas, Calif............................. 357

Murray Creek near San Andreas, Calif......................................... 358

Calaveras River:

Cosgrove Creek near Valley Springs, Calif...................................... 359

Calaveras River at Jenny Lind, Calif............................................. 360

Bear Creek near Lockeford, Calif................................................. 362

Delta-Mendota Canal near Tracy, Calif............................................ 363

North Fork Mokelumne River:

Salt Springs Reservoir near West Point, Calif.................................... 364
X CONTENTS

Gaging-station records--Continued 

San Joaquin River basin--Continued

Salt Springs Reservoir--Continued Page

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif................... 365

North Forte Mokelumne River below Salt Springs Dam, Calif......................... 366

Cold Creek near Mokelumne Peak, Calif.......................................... 367

Bear River near Salt Springs Dam, Calif........................................ 369

Middle Fork Mokelumne River at West Point, Calif............................... 370

South Fork Mokelumne River near West Point, Calif............................ 371

Mokelumne River near Mokelumne Hill, Calif....................................... 372

Mokelumne River at Lancha Plana, Calif........................................... 373

Mokelumne River near Clements, Calif............................................. 374

Woodbridge Canal at Woodbridge, Calif.......................................... 375

Mokelumne River at Woodbridge, Calif............................................. 376

Dry Creek near Gait, Calif..................................................... 377

North Fork Cosumnes River:

Camp Creek near Somerset, Calif.............................................. 378

North Fork Cosumnes River near El Dorado, Calif................................ 379

Cosumnes River near Plymouth, Calif............................................ 380

Cosumnes River at Michigan Bar, Calif.......................................... 381

Cosumnes River at McConnell, Calif............................................. 382

Contra Costa Canal near Oakley, Calif............................................ 383

Dutch slough:

Marsh Creek near Byron, Calif.................................................. 384

Goose Lake (closed basin)

Drew Creek near Lakeview, Oreg................................................... 385

Cottonwood Creek near Lakeview, Oreg............................................. 386

Sacramento River basin

Sacramento River at Delta, Calif................................................... 387

Pit River:

South Fork Pit River near Likely, Calif........................................ 388

Pit River near Canby, Calif...................................................... 389

Pit River near Bieber, Calif...................................................... 390

Hat Creek near Hat Creek, Calif................................................ 391

Pit River below Pit No. 4 Dam, Calif............................................. 392

Pit River at Big Bend, Calif..................................................... 394

Pit River near Montgomery Creek, Calif........................................... 395

Squaw Creek above Shasta Lake, Calif........................................... 396

McCloud River below Big Springs, near McCloud, Calif........................... 397

Angel Creek near McCloud, Calif.............................................. 398

McCloud River near McCloud, Calif.............................................. 399

McCloud River above Panther Creek, near McCloud, Calif......................... 400

McCloud River above Shasta Lake, Calif......................................... 401

Shasta Lake near Redding, Calif.................................................... 402

Sacramento River at Keswick, Calif................................................. 403

Clear Creek at French Gulch, Calif............................................... 404

Clear Creek near Igo, Calif. .........................."........................... 405

South Cow Creek near Millville, Calif.......................................... 406

Clover Creek near Oak Run, Calif............................................... 407

Oak Run Creek near Oak Run, Calif............................................ 407

Cow Creek near Millville, Calif.................................................. 408

Middle Fork Cottonwood Creek near Ono, Calif..................................... 409

Cottonwood Creek near Cottonwood, Calif.......................................... 410

Battle Creek near Cottonwood, Calif............................................... 411

Paynes Creek near Red Bluff, Calif............................................... 412

Sacramento River near Red Bluff, Calif............................................. 413

Antelope Creek near Red Bluff, Calif............................................. 414

Mill Creek near Los Molinos, Calif............................................... 415

Elder Creek near Paskenta, Calif................................................. 416

Elder Creek at Gerber, Calif..................................................... 417

Thomes Creek at Paskenta, Calif.................................................. 418

Deer Creek near Vina, Calif...................................................... 419

Big Chico Creek near Chico, Calif................................................ 420

Stony Creek at Black Butte dam site, near Orland, Calif.......................... 421

Stony Creek near Hamilton City, Calif............................................ 422

Sacramento River at Butte City, Calif.............................................. 423

Sacramento River at Colusa, Calif.................................................. 424

Butte Creek near Chico, Calif.................................................... 425

Sacramento River below Wilkins Slough, Calif....................................... .426

Sacramento River at Knights Landing, Calif......................................... 427

Middle Fork Feather River:

Big Grizzly. Creek near Portola, Calif.......................................... 428

Middle Fork Feather River near Clio, Calif....................................... 429

Middle Fork Feather River below Sloat, Calif..................................... 430

Middle Fork Feather River near Merrimac, Calif................................... 431

South Fork Feather River:

Lost Creek near Clipper Mills, Calif......................................... 432

Palermo Canal at Enterprise, Calif........................................... 433

South Fork Feather River at Enterprise, Calif.................................. 434

Feather River at Bidwell Bar, Calif.............................................. 435

North Fork Feather River:

Lake Almanor near Prattville, Calif............................................ 436

North Fork Feather River near Prattville, Calif................................ 437

Butt Creek above Alrnanor-Butt Creek tunnel, near Prattville, Calif........... 438

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif........... 440

Indian Creek (head of East Branch of North Fork Feather River) near

Crescent Mills, Calif.................................................. 442

Spanish Creek above Blackhawk Creek, at Keddie, Calif...................... 443

East Branch of North Fork Feather River, near Rich Bar, Calif................ 444
CONTENTS XI

Gaging-station records Continued 

Sacramento River basin Continued 

Feather River Continued

North Fork Heather River Continued

Bucks Creek: Page 

Bucks Lake near Bucks Lodge, Calif........................................... 445

North Fork Feather River at Big Bar, Calif..................................... 446

West Branch Feather River near Yankee Hill, Calif............................ 447

Feather River near Oroville, Calif............................................... 448

Honcut Creek:

South Honcut Creek near Bangor, Calif........................................ 450

Middle Yuba River (head of Yuba River):

Milton-Bowman tunnel at outlet, Calif........................................ 451

Middle Yuba River at Milton, Calif............................................. 452

Middle Yuba River above Oregon Creek, Calif. ................................... 453

Oregon Creek near North San Juan, Calif...................................... 454

North Yuba River below Goodyears Bar, Calif.................................. 455

North Yuba River below Bullards Bar Dam, Calif............................... 456

South Yuba River near Cisco, Calif........................................... 457

Canyon Creek:

Bowman Lake near Graniteville, Calif....................................... 458

Bowman-Spaulding Canal at intake, Calif.................................. 459

Canyon Creek below Bowman Lake, Calif...................................... 460

South Yuba River near Washington, Calif...................................... 461

Yuba River at Englebright Dam, Calif........................................... 462

Deer Creek near Smartville, Calif............................................ 463

Dry Creek near Brownsville, Calif............................................ 464

Dry Creek at Virginia Ranch, Calif........................................... 465

Yuba River at Marysville, Calif........................................:....... 466

Bear River near Auburn, Calif.................................................. 467

Bear River near Wheatland, Calif............................................... 468

Dry Creek near Wheatland, Calif.............................................. 469

Feather River at Nicolaus, Calif................................................. 470

Sacramento River at Verona, Calif.................................................. 471

Sacramento Weir near Sacramento, Calif........................................... 471

Shirttail Creek:

North Shirttail Creek: 

Forbes Creek:

Worth Fork Forbes Creek near Dutch Flat, Calif........................... 472

North Shirttail Creek near Dutch Flat, Calif................................. 473

North Fork American River at North Fork Dam, Calif............................... 474

Middle Fork American River at French Meadows, Calif............................ 475

Rubicon River at Rubicon Springs, near Meeks Bay, Calif...................... 476

South Fork Rubicon River at Mouth, near Georgetown, Calif.................. 477

Rubicon River near Georgetown, Calif......................................... 478

Pilot Creek:

Georgetown Divide ditch above Pilot Creek, near Georgetown, Calif........ 479

Georgetown Divide ditch near Georgetown, Calif........................... 480

Pilot Creek near Georgetown, Calif......................................... 481

Middle Fork American River near Auburn, Calif................:................. 482

South Pork American River:

Echo Lake conduit near Phillips, Calif....................................... 483

Pyramid Creek near Phillips , Calif........................................... 484

Silver Lake Outlet (head of Silver Fork of South Fork American River) near

Kirkwood, Calif..;..................................................... 485

Twin Lakes Outlet near Kirkwood, Calif..................................... 486

South Fork American River near Kyburz, Calif. ...... 4 ........................... 487

Alder Creek near White Hall, Calif............................................ 488

Silver Creek at Union Valley, Calif.......................................... 489

South Fork Silver Creek near Ice House, Calif.............................. 490

Silver Creek near Placerville, Calif...................................»..... 491

South Fork American River near Camino, Calif................................... 492

South Fork American River near Lotus, Calif.................................... 493

Weber Creek near Salmon Falls, Calif......................................... 494

Folsom Reservoir near Folsom, Calif.............................................. 495

American River at Fair Oaks, Calif............................................... 496

American River at Sacramento, Calif.............................................. 498

Sacramento River at Sacramento, Calif.............................................. 499

Yolo bypass:

Clear Lake (head of Cache Creek):

Adobe Creek near Kelseyville, Calif.......................................... 500

Highland Creek near Kelseyville, Calif..................................... 501

Kelsey Creek near Kelseyville, Calif......................................... 502

Clear Lake at Lakeport, Calif.................................................. 503

Cache Creek near Lower Lake, Calif............................................. 504

North Fork Cache Creek near Lower Lake, Calif................................. 505

Cache Creek near Capay, Calif.................................................. 506

Cache Creek at Yolo, Calif..................................................... 507

Yolo bypass near Woodland, Calif................................................. 508

Putah Creek near Guenoc, Calif................................................. 509

Lake Berryessa near Winters, Calif............................................. 510

Putah Creek near Winters, Calif................................................ 511

Putah Creek near Davis, Calif.................................................. 512

Seepage investigations in Sacramento River basin, Calif:

Clear Creek seepage investigation, Calif....................................... 513

Cottonwood Creek seepage investigation, Calif.................................. 514

Red Bank Creek seepage invest igation, Calif.................................... 515

Antelope Creek seepage investigation, Calif.................................... 516

Mill Creek seepage investigation, Calif........................................ 516

Elder Creek seepage investigation, Calif....................................... 517
XII CONTENTS

Gaging-station records Continued 

Sacramento River basin Continued

Seepage investigations Continued Page 

Thomes Creek seepage investigation, Calif...................................... 518

Deer Creek seepage investigation, Calif........................................ 519

Pine Creek seepage investigation, Calif........................................ 519

Big Chico Creek seepage investigation, Calif................................... 520

Lindo Channel of Big Chico Creek seepage investigation, Calif.................. 520

Cache Creek seepage investigation, Calif....................................... 521

Napa River basin

Napa River near St. Helena, Calif.................................................. 522

Conn Creek near St. Helena, Calif................................................ 523

Dry Creek near Napa, Calif......................................................... 524

Sonoma Creek basin

Sonoma Creek at Boyes Hot Springs, Calif........................................... 525

Petaluma Creek basin

Petaluma Creek near Petaluma, Calif................................................ 526

Movato Creek basin

Novato Creek near Novato, Calif.................................................... 527

Corte Madera Creek basin

Corte Madera Creek at Ross, Calif.................................................. 528

Lagunitas Creek basin 

Lagunitas Creek:

Arroyo Nicasio near Point Reyes Station, Calif................................... 529

Russian River basin

Russian River near Ukiah, Calif.................................................... 530

East Fork Russian River near Calpella, Calif..................................... 531

Russian River near Hopland, Calif.................................................. 532

Russian River near Cloverdale, Calif............................................... 533

Big Sulphur Creek near Cloverdale, Calif......................................... 534

Russian River near Healdsburg, Calif............................................... 535

Dry Creek near Cloverdale, Calif................................................. 536

Russian River at Guerneville, Calif................................................ 537

Gualala River basin

South Fork Gualala River near Annapolis, Calif..................................... 538

Navarro River basin

Navarro River near Navarro, Calif.................................................. 539

Noyo River basin

Noyo River near Fort Bragg, Calif.................................................. 540

Mattole River basin

Mattole River near Petrolia, Calif................................................. 541

North Fork Mattole River at Petrolia, Calif...................................... 542

Eel River basin 

Eel River:

Lake Pillsbury near Potter Valley, Calif......................................... 543

Eel River below Scott Dam, near Potter Valley, Calif............................... 544

Potter Valley powerhouse tailrace near Potter Valley, Calif...................... 545

Eel River at Van Arsdale Dam, near Potter Valley, Calif............................ 546

Outlet Creek near Longvale, Calif................................................ 547

Eel River above Dos Rios, Calif..................................,.................' -548

Middle Fork Eel River below Black Butte River, near Covelo., Calif................ 549

Mill Creek near Covelo, Calif.................................................. 550

Eel River below Dos Rios, Calif.................................................... 551

North Pork Eel River near Mina, Calif............................................. 552

Eel River at Aider-point, Calif..................................................... 553

South Fork Eel River near Branscomb, Calif....................................... 554

South Fork Eel River near Miranda, Calif................................;........ 555

Eel River at Scotia, Calif......................................................... 556

Van Duzen River near Dinsmores, Calif............................................ 557

Van Duzen River near Bridgeville, Calif.......................................... 558

Yager Creek near Carlotta, Calif............................................... 559

Jacoby Creek basin

Jacoby Creek near Freshwater, Calif................................................ 560

Mad River basin

Mad River near Forest Glen, Calif.................................................. 561

Mad River near Arcata, Calif....................................................... 562

Little River basin

Little River at Crannell, Calif.................................................... 563

Redwood Creek basin

Redwood Creek near Blue Lake, Calif................................................ 564

Redwood Creek at Orick, Calif...................................................... 565

Lost River basin (closed basin ad.lacent to Klamath River basin) 

Lost River:

Lost River diversion canal near Olene, Oreg...................................... 566

Lower Klamath Lake basin (closed basin ad.lacent to Klamath River basin)

Antelope Creek near Tennant, Calif............................................... 567

Butte Creek near Macdoel, Calif.................................................. 568

Klamath River basin

Williamson River (head of Klamath River) near Klamath Agency, Oreg................. 569

Sprague River near Beatty, Oreg.................................................. 570

Sprague River near Chiloquin, Oreg............................................... 571

Williamson River below Sprague River, near Chiloquin. Oreg......................... 572

Upper Klamath Lake (continuation of Williamson River):

Fourmile Creek;

Cascade Canal near Fish Lake, Oreg............................................. 573

"A" Canal at Klamath Falls, Oreg................................................. 574

Upper Klamath Lake near Klamath Falls, Oreg........................................ 575

Link River (continuation of Upper Klamath Lake) at Klamath Falls, Oreg............. 576

Diversion from Klamath River to Lost River, near Olene, Oreg..................... 577

Klamath River at Keno, Oreg........................................................ 578
CONSENTS XIII

Gaging-station records Continued

Klamath River basin Continued Page

Pall Creek at Copco, Calif....................................................... 579

Klamath River below Pall Creek, near Copco, Calif.................................. 580

Jenny Creek:

Keene Creek at Hyatt Prairie, near Ashland, Oreg............................... 581

Shasta River near Yreka, Calif................................................... 582

Scott River near Port Jones, Calif ................................................ 583

Klamath River near Seiad Valley, Calif............................................. 584

Indian Creek near Happy Camp, Calif.............................................. 585

Elk Creek near Happy Camp, Calif................................................. 586

Salmon River at Somesbar, Calif.....:............................................ 587

Klamath River at Somesbar, Calif.....;............................................. 588

Trinity River at Lewiston, Calif................................................. 589

Trinity River near Burnt Ranch, Calif............................................ 590

South Fork Trinity River near Hyampom, Calif................................... 591

Hayfork Creek near Hayfork, Calif............................................ 592

Hayfork Creek near Hyampom, Calif............................................ 593

South Fork Trinity River near Salyer, Calif.................................... 594

Trinity River near Hoopa, Calif.................................................. 595

Klamath River near Klamath, Calif.................................................. 596

Smaller reservoirs in Klamath River basin, Oreg,................................... 597

Smith River basin 

Middle Fork Smith River:

South Fork Smith River near Crescent City, Calif.................................. 598

Smith River near Crescent City, Calif.............................................. 599

Rowdy Creek at Smith River, Calif....................i........................... 600

Revisions of records for discontinued stations:

Kern River at Isabella, Calif...................................................... 601

South Fork Tule River near Porterville, Calif...................................... 602

South Fork Kaweah River near Three Rivers, Calif................................... 602

Dinkey Creek at mouth, Calif. ....................................................... 603

San Joaquin River at Herndon, Calif.................;.............................. 604

Stanislaus River at Oakdale, Calif................................................. 608

Bear River at Pardoe Camp, Calif................................................... 609

South Fork Mokelumne River near Railroad Flat, Calif............................... 609

Licking Fork Mokelumne River near Railroad Flat, Calif............................. 610

Sutter Creek at Sutter Creek, Calif................................................. 610

Pit River at Fall River Mills, Calif............................................... 611

Stony Creek above Stony Gorge Reservoir, near Elk Creek, Calif..................... 611

Grizzly Creek near Storrie, Calif.................................................. 612

Concow Creek near Yankee Hill, Calif............................................... 613

Middle Yuba River near North San Juan, Calif....................................... 614

Yuba River at Smartville, Calif. ...........................:....................... 614

Downle River at Downieville, Calif................................................. 615

Discharge measurements at points other than gaging stations.......................... 617

Index................................................................................ 623

ILLUSTRATIONS

Figure 1. Gaging-station structures: A, Pish Creek near Duarte, Calif.; B, Eel

River below Dos Rios, Calif............................................. 4

2. Map of the United States showing areas covered by the 18 annual volumes on

surface-water supply.................................................... 9

3. Comparison of discharge at three key gaging stations during 1957 water

year with median discharge for 25-year period........................... 16

SURFACE WATER SUPPLY OP PACIFIC SLOPE BASINS IN CALIFORNIA, 1957

SCOPE OF WORK

This volume is one of a series of 18 reports presenting measurements of stage, discharge, and content of streams, lakes, and reservoirs in the United States during the 

water year ending September 30, 1957. Since 1888, when the United States Geological 

Survey first studied streamflow in relation to problems of irrigation, similar measurements have been made at more than 13,750 gaging stations in the 48 States and at many 

others in the Territories of Alaska and Hawaii. On September 30, 1957, the Geological 

Survey and cooperating organizations were maintaining 7,030 gaging stations, including 

those in Alaska and Hawaii. Discharge measurements only were made at many other points 

in the 1957 water year. The name of each stream measured at points other than gaging 

stations is not listed in the index to this report. Only the major river basins in which 

measurements were made are listed under the item "Discharge measurements" in the index.

COOPERATION

In California the work was done under cooperative agreements with the State Department 

of Water Resources, H. 0. Banks, director; Contra Costa County Flood Control and Water 

Conservation District; Monterey County Flood Control and Water Conservation District; 

Orange County Flood Control District; Sacramento Municipal Utility District; San Bernardino Valley Water Conservation District; San Louis Obispo County Flood Control and Water 

Conservation District; Santa Barbara County Water Agency; Santa Cruz County Flood Control 

and Water Conservation District; and cities of Arcata, San Diego, and Santa Barbara. 

In Oregon the work was done under cooperative agreement with the State of Oregon, L. A. 

Stanley, State engineer.

Assistance in the form of funds or services was given by the Corps of Engineers, 

Department of the Army, in collecting records published herein for 53 gaging stations, by 

the United States Navy for 13 gaging stations, by the Bureau of Reclamation, United States 

Department of the Interior, for 47 gaging stations, by the Bureau of Indian Affairs, 

United States Department of the Interior, for 1 gaging station, and by the Soil Conservation Service, United States Department of Agriculture, for 9 gaging stations. The entire 

expense of the investigation of streamflow in the Tuolumne River basin made for the Hetch 

Hetchy project and of the flow of Alameda Creek near Niles was borne by the city and 

county of San Francisco.

The following organisations and individuals aided in collecting records: In California, 

The California Oregon Power Co; California Water and Telephone Co.; Francis N. Dlouhy; 

East Bay Municipal Utility District; The Irvine Ranch; Kings River Water Association; 

Montecito County Water District; Pauba Ranch; Pacific Gas and Electric Co; San Bernardino 

County Flood Control District; Southern California Edison Co; United Water Conservation 

District; Ventura County Water Resources Division; and Helix, Madera, Merced, Modestos 

Nevada, Serrano and Carpenter, Turlock, Oakdale, Oroville-Wyandotte, South San Joaquin, 

and Woodbridge Irrigation Districts; in Oregon, The California Oregon Power Co.

1
2 SURFACE WATER SUPPLY, 1957, PART 11

DIVISION OP WORK

The stream gaging work was done by the Water Resources Division of the Geological Survey under the direction of personnel shown in the preface. The data for stations in the 

States of California and Oregon were collected and prepared for publication in the district offices listed below.

State District office Address

California a/........... Menlo Park.................. 4 Homewood Place.

Oregon b/............... Portland.................... 1001 NE. Lloyd Boulevard.

a/ Except for Pall.Creek and Klamath River near Copco. 

b/ Including Including Pall Creek and Klamath River near Copco, Calif.

Information of a more detailed nature than that published for most of the gaging stations given in this report is on file in the district offices listed above. Provisional 

records of discharge prior to publication, and other unpublished data concerning the 

gaging-station records may usually be obtained from the district office.

DEFINITION OF TERMS AND ABBREVIATIONS

The terms of streamflow and other hydrologic data, as used in this report, are defined 

as follows:

Cubic foot per second (cfs) is the rate of discharge of a stream whose channel is 

1 square foot in cross-sectional area and whose average velocity is 1 foot per second.

Cubic feet per second per square mile (cfsm) is the average number of cubic feet of 

water flowing per second from each square mile of area drained, assuming that the runoff 

is distributed uniformly in time and area.

Runoff in Inches is the depth to which an area would be covered if all the water draining from it in a given period were uniformly distributed on its surface. The term is used 

for comparing runoff with rainfall, which is also usually expressed in inches.

Acre-foot is the quantity of water required to cover an acre to the depth of 1 foot 

and is equivalent to 43,560 cubic feet. The term is commonly used in relation to storage 

for irrigation.

Cfs-day is the volume of water represented by a flow of 1 cubic foot per second for 

24 hours. It is equivalent to 86,400 cubic feet, 1.983471 acre-feet, or 646,317 gallons, 

and represents a runoff of 0.0372 inch from 1 square mile.

Stage-discharge relation is the relation between gage height and the amount of water 

flowing in a channel, expressed as volume per unit of time.

Control designates a feature downstream from the gage that determines the stagedischarge relation at the gage. This feature may be a natural constriction of the channel, 

a long reach of the channel, or an artificial structure.

Contents is the volume of water in a reservoir. Unless otherwise indicated, volume is 

computed on the basis of a level pool and does not include bank storage.

The drainage area of a stream at a specified location is that area, measured in a 

horizontal plane, which is so enclosed by a topographic divide that direct surface runoff 

from precipitation normally would drain by gravity into the river above the specified 

point. Figures of drainage area given herein include all closed basins, or noncontributing areas, within the area unless otherwise noted.

WSP is used as an abbreviation for "Water-Supply Paper" in references to previously 

published reports.
SURFACE WATER. SUPPLY, 1957, PART 11 3 

DOWNSTREAM ORDER OF LISTING GAGING STATIONS

Beginning with the series of reports for the water year ending September 30, 1951, the 

order of listing gaging-station records was changed. In this report, in a downstream 

direction along the main stem all stations on a tributary, entering above a main-stem station are listed before that station. If a tributary enters between two main-stem stations, 

it is listed between them. A similar order is followed in listing stations on first rank, 

second rank, and other ranks of tributaries. To indicate the rank of any tributary on 

which a gaging station is situated and the stream to which it is immediately tributary, 

each indention in the listing of gaging stations in. the table of contents of this report 

represents one rank. This downstream order and system of indention show which gaging stations are on tributaries between any two stations on a main stem and the rank of the tributary on which each gaging station is situated.

The order of listing used before the publication of the 1951 report listed first all 

stations on the main stem from headwaters toward mouth, then all stations on the uppermost 

tributary to the main stem from the tributary's source to mouth, and then all stations 

from source to mouth of the uppermost tributary to the tributary.

EXPLANATION OF DATA

The base data collected at gaging stations consist of records of stage and measurements 

of discharge. In addition, observations of factors affecting the stage-discharge relation, 

weather records, and other information are used to supplement base data in determining the 

daily flow. The records of stage are obtained either from direct readings on a nonrecording gage or from a water-stage recorder that gives a continuous record of fluctuations. 

Measurements of discharge are made with a current meter by -the general methods adopted by 

the Geological Survey on the basis of experience in stream gaging since 1888. These 

methods are described in Water-Supply Paper 888 and are also outlined in standard textbooks on the measurement of stream discharge. Typical structures in use at gaging stations 

are shown in figure 1.

Rating tables giving the discharge for any stage are prepared from stage-discharge 

relation curves defined by discharge measurements. If extensions to the rating curves are 

necessary to define the extremes of discharge, they are made on the basis of indirect 

determinations of peak discharge (such as-slope-area or contracted-opening determinations, 

computation of flow over dams or weirs, and by other methods), velocity-area studies, and 

logarithmic plotting. The application of the daily mean gage height to those rating 

tables gives the daily mean discharge, from which the monthly and the yearly mean discharge 

are computed. If the stage-discharge relation is subject to change because of frequent or 

continual change in the physical features that form the control, the daily mean discharge 

is determined by the shifting-control method, in which correction factors based on individual discharge measurements and notes by engineers and observers are used in applying 

the gage heights to the rating tables. If the stage-discharge relation for a station is 

temporarily changed by the presence of aquatic growth or debris on the control, the daily 

mean discharge is computed by what is essentially the shifting-control method.

At some gaging stations the stage-discharge relation is affected by backwater from 

reservoirs, tributary streams, or other sources. This necessitates the use of the slope

S10S29 o ^9 - 2
SURFACE WATER SUPPLY, 1957, PART 11

A. FISH CREEK NEAR DUARTE. CALIF.

B. EEL RIVER BELOW DOS RIOS, CALIF.

FIGURE 1. GAGING-STATION STRUCTURES
EXPLANATION OF DATA 5

method In which the slope or fall In a reach, of the stream Is a factor In determining 

discharge. Information requisite for determining the slope or fall is obtained by means 

of an auxiliary gage set at some distance from the base gage. At some stations the stagedischarge relation is affected by changing stage. If so, the rate of change in stage is 

used as a factor in the determination of discharge.

At most gaging stations in the northern part of the United States and at some in the 

mountainous regions of other parts the stage-discharge relation is affected by ice during 

the winter, and it becomes Impossible to compute the discharge in the usual manner. Discharge for periods of ice effect is- computed on the basis of the gage-height record and 

occasional winter discharge measurements, consideration being given to the available information on temperature and precipitation, notes by gage observers and engineers, and comparable records of discharge for other stations in the same or nearby basins. If the 

stage-discharge relation is affected by ice, this information is given in a note to the 

table. No mention is made of occasional days of ice effect if the degree of accuracy of 

daily records is not changed.

The data herein presented generally comprise a description of the station, a skeleton 

rating table, and a table showing the daily discharge and monthly and yearly discharge 

and runoff of the stream. Records are published for the water year which begins on October 1 and ends on September 30. A calendar for the water year 1957 is shown on page IV 

for the purpose of finding the day of the week for any date.

The description of the station gives the location, drainage area, records available, 

type and history of gages, average discharge, extremes of discharge, general remarks, and 

notations of revisions of the previously published record. The location of the gaging 

station and the drainage area are obtained from the most accurate maps available. River 

mileage, given under "Location" for some stations, is that determined and used by the 

Corps of Engineers unless otherwise noted. Under "Records available" are given the 

periods for which there are published records generally equivalent to those at the present 

site. Under'"Gage" are given the type of gage currently in use and the datum of the 

present gage above mean sea level, and a condensed history of the types, locations, and 

daturns of previous gages used during the period of records available. Under "Average discharge" is given the average discharge for the number of years indicated. It is not given 

for stations having fewer than five complete years of record or for stations where changes 

in water development during the period of record cause the figure to have little significance. Under "Extremes" are given the maximum discharge and gage height; the minimum discharge if there is little or no regulation; the minimum daily discharge if there is extensive regulation (also the minimum discharge if useful); and the minimum gage height 

(unless it is of no importance). In the first paragraph, the data given are for the complete current water year unless otherwise specified. In the second paragraph, the data 

given are for the periods of record within the calendar year dates in the heading (not 

necessarily those for the complete years indicated by the heading dates). Reliable information concerning major floods that have occurred outside the period of record are given 

in the third or last paragraph under "Extremes." Unless otherwise qualified, the maximum 

discharge corresponds to the crest stage obtained by use of a water-stage recorder, a 

crest-stage indicator, or a nonrecording gage read at the time of the crest. If the maximum gage height did not occur at the same time as the maximum discharge, it is given
6 SURFACE WATER SUPPLY, 1957, PART 11

separately. Information pertaining to the accuracy of the records and conditions which 

affect the natural flow at the gaging station Is given under "Remarks."

Previously published records of some stations have been found to be in error on the 

basis of data or information later obtained. Revisions of such records are usually published along with the current records In one of the annual reports. In order to make it 

easier to find such revised records, a paragraph headed "Revisions (water years)" has been 

added to the description of all stations for which revised records have been published. 

Listed therein are all the reports in which revisions have been published, each followed 

by the water years for which figures are revised In that report. In listing the water 

years only one number is given; for Instance, 1933 stands for the water year October 1, 

1932, to September 30, 1933. If no daily, monthly, or annual figures of discharge are 

concerned in the revision, that fact is brought out by notations after the year dates as 

follows: "(M)" means that only the Instantaneous maximum discharge was revised; "(m)" 

that only the Instantaneous minimum was revised; and "(P)" that only peak discharges were 

revised. If the drainage area has been revised, the report in which the revised figure 

was first published is given. It should be noted that for all stations for which cubic 

feet per second per square mile and runoff in Inches are published, a revision of the 

drainage area necessitates corresponding revision of all figures based on the drainage 

area. Revised figures of cubic feet per second per square mile and runoff in Inches 

resulting from a revision of the drainage area only are usually not published In the 

annual series of reports.

Skeleton rating tables are published for all stations except those at which the daily 

discharge for the greater part of the open-water period was determined by the shiftingcontrol method, the slope method, or other special methods Involving an equivalent adjustment to the gage height of more than one-tenth foot. Skeleton rating tables are generally 

not published for stations on canals.

For stations equipped with water-stage recorders, except those on streams subject to 

sudden or rapid fluctuation, the daily table -gives the discharge corresponding to the 

daily mean gage height. For stations subject to such fluctuation the daily mean gage 

height may not indicate the true daily mean discharge, which must be obtained by averaging the discharge for parts of the day or by using the discharge Integrator, an Instrument 

for obtaining the daily mean discharge from a continuous gage-height graph and containing, 

as an essential element, a curve representing the stage-discharge relation at the station. 

For stations equipped with nonrecording gages, the table of daily discharge gives the discharge corresponding to once-daily readings of the gage, or to the mean of twice-daily 

readings, or to the mean gage height determined from gage-height graphs based on gage readings. For periods of rapidly changing stage, the daily mean discharge is determined from 

gage-height graphs based on gage readings, the frequency of which is stated In the station 

description.

In the table of daily discharge, the figures for the maximum day and the minimum day 

for each month are underlined. If the figure is repeated, it is underlined only on the 

first day of its occurrence.

In the monthly summary below the daily table, the line headed "Total" gives the sum of 

the daily figures; it is the total cfs-days for the month. The line headed "Mean" gives 

the average flow in cubic feet per second during the month. Runoff for the month may be
ACCURACY OF FIELD DATA AND COMPUTED RESULTS 7

expressed in cubic feet per second per square mile (line headed "Cfsm"), or in inches 

(line headed "In."), or in acre-feet (line headed "Ac-ft"). Figures for cubic feet per 

second per square mile and runoff in inches are omitted if the drainage area includes 

large noncontributing areas, or if the average annual rainfall over the drainage basin is 

usually less than 20 inches.

In the yearly summary below the monthly summary, the figures of maximum are the maximum daily discharges, not the momentary discharges when the water was at crest stage. 

Likewise, the minimums in this summary are the minimum daily discharges.

Peak discharges and the times of their occurrence and corresponding gage heights of 

most stations are listed below the table of daily and monthly discharge. All Independent 

peaks above the selected base are given. The base discharge, which is given in parentheses, is selected so that an average of about three peaks a year will be presented. 

Peak discharges are not published for canals, ditches, drains, or for any stream for which 

the peaks are subject to substantial control by man.

Footnotes to the table of daily discharge indicate periods when discharge was computed 

or estimated by unusual or special methods during periods of no gage-height record and ice 

effect, or by other effects that reduce the degree of accuracy of the records. Days on 

which discharge measurements were made are indicated by asterisk and footnote unless they 

were made at frequent regular intervals, in which instance the general frequency of discharge measurements is given under "Remarks" in the station description.

For most gaging stations on lakes and reservoirs the data presented comprise a description of the station and a monthly summary table of stage and contents. For some reservoirs a table showing daily contents or stage is given. A skeleton table of capacity at 

given stages is usually given in the first report in which data for the reservoir are 

published, but it is omitted from succeeding reports.

Discharge measurements and determinations of peak flows made at sites other than gaging 

stations are listed at the end of each report.

At many gaging stations water samples are collected from the streams for the purpose of 

making chemical analyses, computing dissolved solids, suspended sediment loads, and 

particle-size distribution, or measuring water temperatures. For most of these samples 

the results are published in an annual series of water-supply papers entitled "Quality of 

Surface Waters of the United States" which is issued in four volumes. In this report 

under "Remarks" a reference is made to quality-of-water records collected at gagingstations on a regular basis and published in the quality-of-water reports. At many other 

gaging stations quality-of-water data are obtained at irregular intervals and published as 

"miscellaneous analyses" in quality-of-water reports; such records are not referred to in 

"Remarks" paragraph in this report. At many gaging stations water temperature is obtained 

also at the time a discharge measurement is made; such temperature readings are not 

reported in the quality-of-water annual reports.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of streamflow data depends primarily on (1) the stability of the stagedischarge relation or, if the control is unstable, the frequency of discharge measurements, 

and (2) the accuracy of observations of stage, measurements of discharge, and interpretation of records.
8 SURFACE WATER SUPPLY, 1957, PART 11

The station description states the degree of accuracy of the records. "Excellent" 

indicates that, in general, the error in the daily records is believed to be less than 

5 percent; "good," less than 10 percent; "fair," less than 15 percent; and "poor," probably more than 15 percent. The records of monthly and yearly mean discharge and runoff 

are, in general, more nearly accurate than the daily records.

Runoff at some stations, as indicated by the monthly mean, may vary widely from natural 

runoff, owing to diversion, consumption, regulation by storage, increase.or decrease in 

evaporation due to artificial causes, or to other factors. For such stations, figures of 

cubic feet per second per square mile and runoff in inches are not published unless storage or diversion records are included to indicate the extent of the regulation or diversion, or unless satisfactory adjustments can be made for changes in contents of reservoirs or for other changes incident to use and control. Evaporation from a reservoir is 

not included In the adjustments for changes in reservoir contents, unless it is so stated. 

Even at those stations where adjustments are made, large errors in computed runoff may 

occur when relatively large negative adjustments are made or when evaporation is large in 

comparison with the observed discharge.

Many gaging stations on streams in the irrigated areas of the United States are situated above most of the diversions from those streams, and therefore the discharge recorded 

does not actually show the water supply available at the stations for further development, 

because water must first be supplied to existing irrigation systems.

PUBLICATIONS

To facilitate publication of the annual series of reports, the area of the United 

States is divided into 14 parts whose boundaries coincide with certain natural drainage 

lines. Formerly, the results of streamflow measurements were published in 14 volumes, 

one for each of the 14 parts. Beginning with the reports for.1951, the records are published in 18 volumes, there being 2 volumes each for Parts 1, 2, 3, and 6. The boundaries 

of the various parts are Indicated by the following list and the map in figure 2.

Part 1. North Atlantic slope basins, In two volumes:

A, North Atlantic slope basins, Maine to Connecticut. 

B, North Atlantic slope basins, New York to York River.

2. South Atlantic slope and eastern Gulf of Mexico basins, in two volumes: 

A, South Atlantic slope basins, James River to Savannah River. 

B, South Atlantic slope and eastern Gulf of Mexico basins, Ogeechee River 

t o Pearl River.

3. Ohio River basin, in two volumes:

A, Ohio River basin except Cumberland and Tennessee River basins. 

B, Cumberland and Tennessee River basins.

4. St. Lawrence River basin.

5. Hudson Bay and upper Mississippi River basins.

6. Missouri River basin, in two volumes:

A, Missouri River basin above Sioux City, Iowa. 

B, Missouri River basin below Sioux City, Iowa.

7. Lower Mississippi River basin.

8. Western Gulf of Mexico basins.

9. Colorado River basin.

10. The Great Basin.

11. Pacific slope basins in California.

12. Pacific slope basins in Washington and upper Columbia River basin.

13. Snake River basin.

14. Pacific slope basins in Oregon and lower Columbia River basin.

Water-supply papers and other publications of the Geological Survey containing data on 

the water resources of the United States may be purchased or consulted as follows:

1. Copies may be purchased from the Superintendent of Documents, Government Printing 

Office, Washington 25, D. C., who will, on application, furnish lists giving prices.
PUBLICATIONS
10 SURFACE WATER SUPPLY, 1957, PART 11

A list of Geological Survey publications may also be obtained by applying to the Director, 

Geological Survey, Washington, D. C.

2. Sets of the reports may be consulted in the libraries of the principal cities in 

the United States.

3. Sets are available for consultation in the offices of the Water Resources Division 

of the Geological Survey. Addresses of the offices in the area covered by this report 

are given on page 1.

Early records of the flow of streams in the United States are published in the reports 

listed below. In many of these reports records for years earlier than those indicated 

have been included for some streams.

Streamflow data for the years 1884-19O1, In reports of the Geological Survey 

(A = Annual Report; B = Bulletin)

Report

10th A, pt. 2 

llth A, pt. 2

B 131........ 

16th A, pt. 2

WSP 11.......

18th A, pt. 4

19th A, pt. 4 

WSF 27.......

WSF 35 to 39.

WSF 47 to 52.

WSF 65, 66... 

WSF 75.......

Character of data

Descriptive information only. 

Monthly discharge and descriptive information. . ............

....do.....................................................

Descriptions, measurements, gage heights, and ratings.....: 

Descriptive information only.

monthly discharge.

Descriptions, measurements, ratings, and monthly discharge.

east of the Mississippi River, and Missouri River and 

tributaries above Kansas River.

west of the Mississippi River, except Missouri River and 

tributaries above Kansas River. 

Descriptions, measurements, ratings, and monthly discharge. 

Measurements, ratings,, and gage heights of streams east of 

the Mississippi River, and Missouri River and tributaries.

the Mississippi River, except Missouri River and tributaries.

Descriptions, measurements, gage heights, and ratings......

Descriptions, measurements, gage heights, and ratings......

Descriptions, measurements, gage heights, and ratings...... 

Monthly discharge ..........................................

Year

1884 to September 189O.

1884-92.

1893-94.

1896.

1895-96.

1897. 

1698.

1899. 

1899.

1900.

1901. 

1901.

Reports on surface-water supply containing records from 1878 to date for drainage 

basins in this report are listed below. The data for any particular gaging station will, 

In general, be found in the reports covering the years during which the station was 

maintained.

Numbers of water-supply papers containing results of stream measurements in Pacific slope 

basins in California, 1876-1957

Year

r

1878-191K

\

1912

1913

1914

1915

1916

1917

1918

WSP

a298

b299

C300

331

361

391

411

441

461

481

Year

1919-20

1921

1922

1923

1924

1925

1926

1927

1928

1929

WSF

511

531

551

571

591

611

631

651

671

691

Year

1930

1931

1932

1933

1934

1935

1936

1937

1938

1939

WSP

706

721

736

751

766

791

811

831

861

881

Year

1940

1941

1942

1943

1944

1945

1946

1947

1948

1949

WSF

901

931

961

981

1011

1041

1061

1091

1121

1151

Year

1950

1951

1952

1953

1954

1955

1956

1957

WSF

1181

1215

1245

1285

1345

1395

1445

1515

a Sacramento River basin.

b San Joaquin River basin.

c The Great Basin and Pacific coast basins.

Note. WSP 298, 299, 30O contain records of flow at all gaging stations in Fart 11 from the 

beginning of records through June 3O, 1912. They supersede records published in the 10th to 22nd 

Annual Reports, Bulletins 131 and 14O, and earlier water-supply papers.

The records at most of the stations discussed in these reports extend over many years. 

Discharge measurements at many points other than regular gaging stations have been made 

each year and are published at the end of each report. The streams and points of measurement are listed in the same order as the streams and gaging stations in the body of
PUBLICATIONS 11

the report. An index of the records obtained before 1904 has been published in WaterSupply Paper 119.

Each of the reports on the surface-water supply for the year 1939 (Water-Supply Paper 

881 for the Pacific slope basins In California) contains, for the area Included in that 

report, a summary of yearly discharge at gaging stations at which 10 or more complete 

years of record had been collected. These summaries were reprinted separately.

Reports also have been published that are compilations of records for various areas, 

usually a single State or drainage basin. These reports contain records previously published (some of which may have been revised), as well as some records not contained in 

the annual series of water-supply papers. The following table lists reports of this type 

for the Pacific slope basins In California.

Reports containing compilations of records of discharge by States

WSP

299

300...........

597-E.........

636-D.. .......

636-E.. .......

637-A.........

Period

1891-1912

1895-1927

1894-1927

Report

mento Rive basin.

Joaquin Ri er basin.

Basin an acific Coast river basins.

Great basins in California.

Records of discharge have been published also in State reports. Some of these are not 

contained In the publications of the Geological Survey or are revisions of records previously published in its water-supply papers. The following table contains a list of 

these reports for the area covered by this report.

State reports containing compilations of records of discharge

State

Do........

Period

1914-24

Report

Oregon.

Oregon.

Oregon.

Oregon.

of Oregon.

Issued by

neer.

Note. In addition to the records contained in the reports listed above, the States of California 

and Oregon have issued annual or biennial reports in which are contained records of discharge.

The reports listed in the foregoing tables contain the customary records of discharge 

collected during the systematic operation of gaging stations. Detailed information on the 

stage and discharge of many streams during major floods has been included in special 

reports on these floods published by the Geological Survey. The more recent of these 

special reports also contain other pertinent hydrologlc information and analyses and compilations of data relating to earlier notable floods. The following Is a list of these

reports:

Report

WSP 147: Destructive floods In the United States in 1904.

WSP 426: Southern California floods of January 1916.

WSP 771: Floods in the United States, magnitude and frequency.

WSP 796-C; Flood in La Canada Valley, Calif., January 1, 1934.

WSP 843: Floods in December 1937 in northern California.

WSP 844: Floods of March 1938 In southern California.

WSP 847: Maximum discharges at stream-measurement stations through September 1938.

WSP 1137-E: Floods of 1950 in southwestern Oregon and northwestern California.

WSP 1137-F: Flood of November-December 1950 in Central Valley basin, California.

WSP 1227-D: Summary of floods In the United States during 1951.

WSP 1260-D: Floods of 1952 in California.

WSP 1320-D: Floods of January 1953 in western Oregon and northwestern California.
12 SURFACE WATER SUPPLY, 1957, PART 11

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The following table lists gaging stations for the area covered by this report, at which 

records of discharge were collected during the water year October 1956 to September 1957 

by agencies other than the Geological Survey. The records of these stations are not contained in publications of the Geological Survey except as noted in footnotes to the table. 

Not listed are gaging stations on many canals for which records were collected in connection with the operation of irrigation projects.

Records of discharge collected by agencies other than the Geological Survey

Stream

Alaraeda storm drain....

Aliso Wash. ............ 

Arcadia Wash. ..........

Arcadia Wash channel...

Banana Street channel..

Batavla storm drain....

Bear Creek. ............ 

Bear Reservoir. ........ 

Beryl Ave. storm drain.

Big Dry Creek Reservoir 

(Big Dry outlet). 

Big Dry Creek Reservoir 

(Little Dry outlet).

Burbank western storm 

drain. 

Burns Reservoir*. ....... 

Calleguas Creek. .......

City Creek, old channel

Clear Lake Reservoir 

(elevation and discharge). 

Colton southwest storm 

drain. 

Compton Creek. .........

DO.. ................

Cucamonga Creek. .......

Dalton Wash. ...........

Do..................

Dog Creek. .............

Dominguez Channel ......

Dume (Zuma) Creek...... 

East Etlwanda Creek.... 

Eaton Wash. ............

Location

Alameda St. at Santiago Blvd., northeast of Orange, Calif.

Nordhoff St., near Northridge, Calif. 

Below Grand Ave., near Arcadia, 

Calif. 

At Huntington Dr., Arcadia, Calif...

Calif.

Simi, Calif.

Calif. 

Near Pontana, Calif. ................

Parker St., north of Santiago Creek, 

near Orange, Calif. 

1 mile east of Merced, Calif ........ 

6 miles northeast of Planada, Calif . . 

19th St. and Beryl Ave., near Alta 

Loma, Calif.

Calif.

Calif. 

4 miles northeast of Clovis, Calif..

5 miles north of Clovis, Calif...... 

Highland Ave., Patton, Calif ........

land, Calif.

Riverside Dr., near Glendale, Calif.

5 miles northeast of Planada, Calif. 

1.5 miles north of Camarlllo State 

Hospital, Camarillo, Calif.

Calif.

Calif. 

Church Ave., near East Highlands, 

Calif. 

Sec. 8, T. 47 N. , R. 8 E. , in California, near Langell Valley, Oreg.

Colton Ave., south of Colton, Calif. 

Greenleaf St., Compton, Calif.......

Above 12Oth St. at Watts, Calif..... 

Merrill Ave., south of Ontario, 

Calif. 

Merced Ave., near Baldwin Park, 

Calif.

Mira Loma, Calif. 

Foothill Dr., Del Rosa, Calif .......

Pacific Ave., near San Bernardino, 

Calif. 

8 miles northeast of Clovis, Calif.. 

Carson Blvd., Torrance, Calif......

Roosevelt Highway near Malibu, 

Calif. 

Pacific Electric Railway bridge near 

Etiwanda, Calif. 

At Lofttis DP., San Gabriel, Calif...

Pasadena, Calif.

Period

1937-57 

1929-57

1939-57 

1955-57

1956-57 

1942-57

1933-51,

1952-57 

1955-57

1947-57 

1943-57

1935-57

1956-57 

1957t 

1947-57

1929-57

1951-57

1949-57 

1949-57t 

1947-57

1932-57

1949-57

1951-57

1949-57t 

1955^57

1942-57

1945-57

1952-57

1947-57 

1919-57*

1942-57 

1928-57"

1951-57 

1947-57

1941-57 

1947-57

1947-57

1947-57

1951-57a 

1938-57

1946-57

1930-57 

1947-57 

1930-57 

1940-57

Collected by

Orange County Flood Control 

District.

Control District. 

Do. 

Do.

California Department of 

Water Resources.

Control District.

Resources Division 

Do.

San Bernardino County Flood 

Control District.

Control District. 

Orange County Flood Control 

District. 

Corps of Engineers. 

Do. 

San Bernardino County Flood 

Control District.

Control District. 

Bureau of Reclamation.

Fresno Irrigation District. 

Do. 

San Bernardino County Flood

Control District.

Control District. 

Do.

Do.

Corps of Engineers. 

Ventura County Water 

Resources Division.

Control District. 

San Bernardino County Flood

Control District. 

Do.

Bureau of Reclamation.

San Bernardino County Flood 

Control District. 

Los Angeles County Flood 

Control District. 

Do. 

San Bernardino County Flood 

Control District. 

Los Angeles County Flood 

Control District.

Control District. 

Do.

Do.

Do. 

Los Angeles County Flood 

Control District.

Los Angeles County Flood 

Control District. 

San Bernardino County Flood 

Control District. 

Los Angeles County Flood 

Control District. 

Do.

t Records of outflow.

t Monthly discharge 1919-24; daily discharge 1924-57.

a Records of diversion.
RECORDS OP DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 13

Records of discharge collected by agencies other than the Geological Survey Continued

Stream

Eighth Street east 

conduit. 

Eighth Street west 

spreading grounds. 

Evey Canyon Creek. .....

Fifteenth Street storm 

drain . 

Fullerton relief 

channel. 

Gerber Reservoir (elevation and discharge)

" J" Canal .............. 

La Tuna Creek. .........

La Veta Ave. storm 

drain. 

Limekiln Creek. ........

Llttlejohn Creek (below Parmlngton Dam) .

Los Angeles River......

Los Cerrltos channel...

Do. .................

Macey debris basin.....

Marlposa Reservoir. .... 

Mint Canyon Creek......

Mission channel. .......

Monrovia Creek. ........

Monrovia storm drain. . . 

Montebello storm drain. 

Mowltz Creek. ..........

Nineteenth Street storm 

drain.

Pacolma Wash. .......... 

Peters Canyon Wash. ....

Placerlta Creek. ....... 

Potato Creek. .......... 

Puddlngsbone Creek.....

Puddlnghead Diversion 

channel. 

Reche Canyon Creek.....

Rlalto-Basellne storm 

drain.

Rio Hondo bypass 

channel.

Salt Creek.. ...........

San Antonio Creek......

San Antonio Water Co.'s 

diversion. 

San Dlmas Wash. ........

Location

8th St. at west channel Cucamonga 

Wash, Upland, Calif. 

West channel of Cucamonga Wash, 

Upland, Calif. 

Near Claremont, Calif. ...............

East of Campus Ave., Upland, Calif...

Brighton Way west of Magnolia Ave., 

Fullerton, Calif. 

Sec. 12, T. -39 S. , R. 13 E., near 

Lorella, Oreg.

Intake, near southeast corner of sec. 

7, T. 41 S., R. 11 E., Oreg. 

2 miles upstream from mouth, near 

Sun Valley, Calif. 

La Veta Ave., east of Santiago Creek, 

southeast of Orange, Calif. 

Devonshire Ave., near Chatsworth, 

Calif. 

A quarter of a mile south of Farmington, Calif.

Calif.

La Verne, Calif. 

Marlposa St., near Burbank, Calif....

Calif. 

Above Anahelm St., near Long Beach, 

Calif.

about 1,000 ft above Keller Bridge, 

5 miles southeast of Bonanza, Oreg. 

Harpold Dam, In si sec. 19, T. 39 S., 

R. llj E. , 4 miles southwest of 

Bonanza, Oreg.

Dam), SEjSWj- sec. 29, T. 39 S. , 

R. 10 E.

corner of sees. 7, 8, 17, and 18, 

T. 41 S., R. 11 E., near Merrill, 

Oreg. 

Cajon Blvd., near San Bernardlno,

5 miles east of Le Grand, Calif...... 

At Fitch Ave., near Sangus, Calif....

Tlppecanoe Ave., near Loma Linda,

Calif. 

Above confluence with Sawplt Creek, 

near Monrovia, Calif. 

Peck Rd., Monrovia, Calif ............ 

Above Rio Hondo, Montebello, CaliF... 

NW£ sec. 21, T. 46 N. , R. 8 E. , 19 

.miles southeast of Scarface, Calif. 

19th St., east of Euclid Ave., 

Upland, Calif.

Calif. 

Parthenla St., near Van Nuys, Calif.. 

Lane Road, near Santa Ana, Calif.....

Ridge Route Highway, near Sangus, 

Calif. 

Bryant St., near Yucalpa, Calif......

Below Puddlngstone Dam, near San 

Dlmas, Calif. 

Juanlta Ave., La Verne, Calif ........

Barton Road, near Loma Linda, Calif..

Baseline Ave., near San Bernardlno, 

Calif.

El Monte, Calif. 

Above Whlttler Narrows Dam, near 

Whlttler, Calif.

A quarter of a mile downstream from 

Newport Rd. crossing, near Elslnore, 

Calif. 

Above Stoddard Canyon, near Claremont, 

Calif. 

Near Ontario No. 1 powerhouse, near 

Claremont, Calif. 

Below Puddlngstone diversion dam, 

near San Dlmas, Calif.

Period

1942-57 

1942-57 

1956-57 

1942-57 

1941-57 

1926-57

1923-57 

1945-57 

1936-57 

1939-57 

1951-57

1938-57 

1950-57

1942-57 

1951-57

1945-57

1947-57

1948-57t 

1956-57

1942-57

1927-57

1932 -.57 

1932-57 

1956-57

1942-57

1953-57

1928-57 

1930-57

1947-57 

1947-57 

1927-57 

1953-57 

1947-57 

1942-57 

1932-57

1954-57 

1928-57

1954-57

1931-57 

1956-57 

1945-57

Collected by

San Bernardlno County 

Flood Control District. 

Do.

Los Angeles County Flood 

Control District. 

San Bernardlno County 

Flood Control District. 

Orange County Flood 

Control District, 

Bureau of Reclamation.

Flood Control District. 

Bureau of Reclamation.

Los Angeles County Flood 

Control District. 

Orange County Flood 

Control District. 

Los Angeles County Flood 

Control District. 

Corps of Engineers.

Flood Control District.

Control District. 

Do.

Do.

Do.

San Bernardlno County

Corps of Engineers. 

Los Angeles County Flood 

Control District. 

San Bernardlno County

Control District. 

Do.

Do. 

Do. 

Bureau of Reclamation.

San Bernardlno County 

Flood Control District.

Control District. 

Do. 

Orange County Flood 

Control District. 

Los Angeles County Flood 

Control District. 

San Bernardlno County 

Flood Control District. 

Los Angeles County Flood 

Control District. 

Do.

San Bernardlno Countv 

Flood Control District. 

Do.

Control District. 

Do.

Riverside County Flood 

Control District.

Los Angeles County Flood 

Control District. 

Do.

Do.

t Records of outflow.

tt Records for some earlier years contained In water-supply papers of Geological Survey.
14 SURFACE WATER SUPPLY, 1957, PART 11

Records of discharge collected by agencies other than the Geological Survey Continued

Stream

conduit diversion. 

Do ..................

San Gabriel -Azusa 

Duarte tunnel diversion. 

San Gabriel River......

San Gabriel bypass 

channel. 

San Gabriel, West Pork.

San Jacinto River......

Santa Ana-Delhi drain. . 

Santa Ana River. ....... 

Santa Anita Creek...... 

Do .................

Santa Clara River. ..... 

Do... ...............

Do.. ................

Santa Fe channel. ......

Santiago Creek. ........ 

Sawpit Creek. ..........

Sawt el le -We stwood 

channel. 

Sespe Creek. ...........

Sierra Madre Wash. ..... 

Do.. ................

Sycamore Canyon channel

Thomas Creek ...........

Thompson Creek. ........

Thompson Creek spreadIng ground intake. 

Timber Creek. ..........

Town Creek. ............ 

Tujunga Wash. ,.......,.

Tujunga Wash, central 

branch. 

Twin Creek. ............

Verdugo channel. ....... 

Villa Park storm drain. 

Walnut Ave. storm drain 

Walnut Creek. .......... 

Warm Creek ............. 

Do ..................

West Anaheim storm 

drain. 

Wildwood Creek. ........

Wilson Creek. ..........

Yucaipa Creek tributary.

Location

Mouth of San Gabriel Canyon, near 

Azusa, Calif.

Foothill Blvd., near Azusa, Calif....

Florence St., near Santa Fe Springs,

Calif. 

Above Whittier Narrows Dam, 3j miles 

north of Whittier, Calif. 

Half a mile below Cog'swell Dam, 

Calif. 

1,000 ft upstream from Oilman Bridge, 

near San Jacinto, Calif.

Calif. 

Newport Blvd., northeast of Costa 

Mesa, Calif. 

Yorba Bridge, northeast of Olive, 

Calif. 

Below Big Santa Anita Dam, near 

Arcadia, Calif.

Above railroad station at Lang, 

Calif.

Montalvo, Calif. 

Below Santa Fe Dam, Calif ............

Near Little Rock, Calif. ............. 

Below Sawpit Dam, near Monrovia,

Calif. 

Culver Blvd., near Culver City, 

Calif. 

1.4 miles downstream from Hartman 

Guard Station and 1.6 miles southwest of Sespe Hot Springs, Calif. 

270 ft below Sierra Madre Dam at 

Sierra Madre, Calif. 

Woodland Ave., near Sierra Madpe, 

Calif. 

Above Solway St., Glendale, Calif,...

NW-J sec. 22, T. 38 S., R. 19 E., Just 

upstream from Barnes Spring, 8 

miles northwest of Lakeview, Oreg. 

Below Thompson Creek Dam, near 

Claremont, Calif. 

Thompson Creek Dam near Clarement, 

Calif. 

Waterman Ave., near San Bernardlno, 

Calif, 

Mountain View Ave,, near San 

Bernardino, Calif. 

Below Moor Park St., Studio City, 

Calif. 

Magnolia Blvd., North Hollywood, 

Calif. 

Lynwood Dr., near Del Rosa, Calif....

Estelle Ave., Glendale, Calif, .......

Center Dr. at Lincoln St., near 

Villa Park, Calif. 

Walnut Ave., at Prospect Ave., east 

of Orange, Calif. 

Puente Ave., at Baldwin Park, Calif.,

Sterling Ave., near San Bernardino, 

Calif. 

Mill St., near San Bernardino, Calif.

Manchester Blvd., west of Anaheim, 

Calif. 

Liveoak Canyon Road, near Yuealpa, 

Calif.

3 miles upstream from east shore 

of Clear Lake, Calif. 

Freemont St., near Yucaipa, Calif....

Liveoak Canyon Road at Riverside 

County line near Yucaipa, Calif.

Period

1933-57tt

1935-57tt

1918-57

1932-57 

1952-57

1934-57

1954-57 

1934-57 

1954-57 

1949-57

1949-57 

1934-57 

1948-57 

1938-57

1949-57 

1929-57

1927-32,

1949-57 

1944-57

1954-57 

1941-57

1951-57 

1953-57

1929-57 

1938-57 

1927-57

1945-57

1943-57 

1941-57 

1945-57 

1942-57 

1950-57 

1930-57 

1942-57 

1936-57 

1936-57 

1928-57 

1953-57 

1946-57 

1942-57

1936-5f 

1947-57

1923-57 

1942-57

1950-57

Collected by

Los Angeles County Flood

Control District. 

Do.

Do.

Do. 

Do.

Do.

Do. 

Do.

Riverside County Flood 

Control District. 

Do.

Orange County Flood 

Control District.

Do.

Los Angeles County Flood 

Control District. 

Do.

Do. 

Do.

Ventura County Water

Survey. 

Los Angeles County Flood 

Control District. 

Do. 

Do.

Do.

Ventura County Water 

Resources Division.

Los Angeles County Flood 

Control District. 

Do.

Do. 

Do.

Oregon State engineer.

Los Angeles County Flood 

Control District. 

Do.

San Bernardino County 

Flood Control District. 

Do.

Los Angeles County Flood 

Control District. 

Do.

San Bernardino County 

Flood Control District. 

Los Angeles County Flood 

Control District. 

Orange County Flood 

Control District. 

Do.

Los Angeles County Flood 

Control District. 

San Bernardino County 

Flood Control District. 

Do.

Orange County Flood 

Control District. 

San Bernardino County 

Flood Control District.

San Bernardino County 

Flood Control District.

Do.

tt Records for some earlier years contained in water-supply papers of Geological Survey.
SURFACE WATER SUPPLY, 1957, PART 11 15 

HYDROLOGIC CONDITIONS

Deficient runoff in the southern portion of the area covered by this report continued 

throughout the 1957 water year except during January when excessive runoff occurred, 

particularly in Ventura and San Bernardino Counties. In the northern portion, total 

runoff for the year was generally in the median range, but events worthy of note occurred 

in May and September. As a result of one of the wettest months of May on record, runoff 

was well above median in the Sacramento River basin and in the coastal basins north of 

San Francisco. 'Minor flooding occurred in the coastal basin of Russian River. In the 

south San Joaquin Valley, where snow melt was delayed by below-normal temperatures, runoff was generally less than median, but even there minor flooding occurred in the Kaweah 

River basin as a result of the unusually heavy rain of May 18. In late September, the 

occurrence of an unusually early winter storm raised northern streams to unseasonally 

high levels. For three key gaging stations in the area covered by this report, a comparison of the monthly and yearly mean discharge during the 1957 water year with the 

median discharge for the 25-year period 1921-45 is shown in figure 3 on the following 

page.
16 SURFACE WATER SUPPLY, 1957, PART 11

Arroro Seco near Paaukna, Calif. 

Drainage area, 16.4 sq mi.

 I

Oet Nor. Dec. Jan. Feb. Mar. April May June July Aug. Sept The

year

MOO 

7000 

6000

 85000

.9

{

4000 

8000 

2000

Kings River at Piedra, Calif. 

Drainage area, 1,694 aq mi.

ilka"

Oet Nor. Dec. Jan. Feb. Mar. April May June July Aug. Sept The

year

6000

Feb Mar. April May June July Aug. Sept The

Median of monthly mean discharge for 26-year period 1921-46. 

Monthly mean discharge during water year 1967.

Figure 3. Comparison of diacharge at three key gaging stations during 1967 water year with 

median diacharge for 25-year period.
TIA JUANA RIVER BASIN 17 

Cottonwood Creek at Morena Dam, Calif.

Location. La t 32°41'01", long 116°32'45", in NEi: sec. 23, T. 17 S., R. 4 E., on Morena 

Dam outlet tower.

Drainage area. 120 sq mi, approximately.

Records available. January 1916, October 1936 to September 1957.

Gage.--Staff gage read once daily. Datum of gage is 2,882.4 ft above mean sea level.

Average discharge. 21 years (1936-57), 10,400 acre-ft per year (14.4 cfs); median of 

yearly runoff, 5,800 acre-ft per year (8.0 cfs).

Remarks. Records of runoff represent all water reaching Morena Reservoir, including rainfall on reservoir surface, computed on basis of records of storage, release (draft), 

spill, leakage, and evaporation. Monthly evaporation from lake surface computed on 

basis of evaporation from Colorado pan using a coefficient of 0.80. Capacity and area 

ratings for reservoir are based on a resurvey made in 1948. Capacity of reservoir at 

permanent spillway level (gage height, 157.00 ft), 50,210 acre-ft. Dead storage, 

654 acre-ft below outlet No. 3 at gage height 70.5 ft. No diversion above reservoir. 

Water is released down Cottonwood Creek to Barrett Reservoir as required.

Cooperation. Records computed in cooperation with city of San Diego. 

Revisions (water years).--WSP 1091: 1946. WSP 1285: 1948.

Monthly runoff, water year October 1956 to September 1957

Month

December .....................

Calendar year 1956 .........

July.........................

Water year 1956-57 .........

Gage 

height 

(feet)t

Contents 

(acrefeet)

Morena Reservoir

68.70 

68.40 

68.00

.

68.00 

69.70 

70.10 

70.40 

70.40 

70.50 

69.80 

69.10 

68.50 

67.90

_

533 

514

489

_

489 

599 

626 

647 

647 

654 

606 

559 

520 

483

_

Change 

in 

contents 

(acrefeet)

-19 

-25

0

-1,670

+110 

+27 

+21 

0 

+7 

-48 

-47 

-39 

-37

-50

Draft 

(acrefeet)

0 

0 

O

1,380

ooooooooo

0

Evaporation 

(acrefeet)

17 

19 

18

310

2 

8 

15 

22 

21 

41 

48 

35 

27

273

Spill 

plus 

leakage 

(acrefeet)

2 

2 

2

42

2 

4 

5 

5 

5 

5 

4 

3 

3

42

Runoff 

(acrefeet)

0 

-4 

20

62

114 

39 

41 

27 

33 

-2 

S 

-1 

-7

265

t On first day of month.

Note. For months when Inflow to the reservoir was small and other elements were large, diseordant figures of runoff may appear. To the extent that such discrepancies may be attributed to 

changes in reservoir capacity since the time of rating used, quantities too small for periods of 

falling stage in the reservoir are compensated by quantities too large for periods of corresponding 

rising stage.
18 TIA JUANA RIVER BASIN

Cottonwood Creek at Barrett Dam, near Dulzura, Calif.

Location. Lat 32°40'45", long 116°40'20", in NW£ sec. 22, T. 17 S., R. 3 E., on Barrett 

Dam outlet tower, 17 miles northeast of Dulzura.

Drainage area.--250 sq mi.

below Morena Dam (drainage area, 130 sq mi).

Gage. Staff gage read once daily. Datum of gage is 1,446.12 ft above mean sea level. 

January 1906 to'December 1915, staff gage at same site at different datum (prior to 

completion of dam).

Average discharge.--12 years (1945-57), 8.520 acre-ft per year (11.8 cfs) ; median of 

yearly inflow, 3,000 acre-ft per year (4.1 cfs).

Remarks. Records of inflow represent all water reaching Barrett Reservoir, including

rainfall on the reservoir and water passing down Cottonwood Creek from Morena Reservoir, 

computed on basis of records of storage, release (draft), spill, leakage, and evaporation. Monthly evaporation from lake surface computed on basis of evaporation from 

Colorado pan using a coefficient of 0.80. Capacity and area ratings for reservoir are 

based on a resurvey made in 1948, 1951, and 1955. Capacity of reservoir at top of flash 

gates on spillway (gage height, 168.88 ft), 44,760 acre-ft. Dead storage, 719 acre-ft 

below lowest outlet at gage height 58.8 ft, included in these records. Plow regulated 

by Morena Reservoir (see p. 17). Water drawn from Barrett Reservoir is diverted out of 

drainage basin to Lower Otay Reservoir by Dulzura conduit for municipal use.

Cooperation.--Records computed in cooperation with city of San Diego. 

Revisions (water years).--WSP 1395: 1949-54 (monthly runoff only).

Monthly Inflow, water year October- 1956 to September 1957

Month

October 1956. ...........

Calendar year 1956....

May. ....................

July........... .........

October. ................

Water year 1956-57. . . .

Gage 

height 

(feet)t 

Barrett R

61.30

-

60.00

-

Contents 

(acrefeet)

867

-

785

-

Change 

in 

contents 

(acrefeet)

-7

-435

-82

Draft 

(acrefeet)

0

1,457

321

Evaporation 

(acrefeet)

22

340

304

Spill 

plus 

leakage 

(acrefeet)

0

.3

0

.1

Inflow 

(acrefeet)

15

1,362

543

first day of month.

Note.--For months when inflow to the reservoir was small and other elements were large, discordant 

figures of runoff may appear. This arises primarily from the difficulty of computing runoff as the 

residual of several larger quantities, which are not susceptible to measurement with a precision 

necessary to produce a final answer within desirable limits of accuracy.
TIA JUANA RIVER BASIN 19

Dulzura conduit near Dulzura, Calif.

Location. Lat 32°37'10", long 116°45'50", in SW^ sec. 10, T. 18 S., R. 2 E., on right 

bank 0.1 mile south of State Highway 94 and 1.8 miles southeast of Dulzura.

Records available.--January 1909 to September 1915, May 1940 to September 1957. Published 

with records of "Cottonwood Creek near Jamul" prior to January 1911 and as "near Jamul" 

January 1911 to Decmeber 1912.

Gage. Water-stage recorder and Cippoletti weir. Datum of gage is 1,446.41 ft above mean 

sea level, unadjusted. Prior to November 1910, staff gage 12.2 miles upstream at 

different datum. December 1910 to September 1915, water-stage recorder and rectangular weir at site 1.6 miles upstream at different datum.

Average discharge. 23 years (1909-15, 1940-57), 13.7 cfs (9,920 acre-ft per year).

Extremes. 1909-15. 1940-57: Maximum daily discharge, 65 cfs Feb. 4, 1911; no flow for 

part of each year.

Remarks. Records good. Conduit diverts water from Cottonwood Creek at Barrett Dam in 

HWi sec. 22, T. 17 S., R. 3 E., to Otay River basin.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

2.4

0.4

.8

1.0

6.8

19

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

( )

( )

0

0

0

Nov.

0"0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.1

0

0

0

0

0

0

0

0

0

0.3

0.01

0.6

Dec.

( )

( )

0

0

0

Calendar year 1956: Max 53

Jan.

0

c

0

0

0

0

.3

*.4

.1

.1

0

0

*.l

0

0

0

0

0

0

0

0

«0

0

0

0

.1

 9.5

20

IT 

11

55.6

1.79

110

Feb.

*7.9

6.3

5.1

4.2

3.2

2.1

.1

1.3

11

IT

11

10

*8.0

9.2

.5

2.

0

0

0

0

0

0

.2

.1

0

0

0

*0

-

91.2

3.26

181

Mar.

0.1

.1

00"

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

«0

0

0

0.2

0.006

0.4

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

«0

0.1

0.003

0.2

May

00"

0

0

0

0

0

0

0

0

c

.2

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0.8

0

1.6

June

0

0

0

July

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Min 0 Mean 1.98 Ac-ft 1,430

Water year 1956-57: Max 20 Min 0 Mean 0.41 Ac-ft 294

Discharge measurement or observation of no flow made on this day.

5105Z9 O - 59 - 3
20 TIA JUANA RIVER BASIN

Cottonwood Creek above Tecate Creek, near Dulzura, Calif.

Location.--Lab 32°34'30", long 116°45'10", in SW^ sec. 26, T. 18 S., R. 2 E., on right

bank 0.8 mile upstream from confluence with Tecate Creek and 5.1 miles south of Dulzura.

Drainage area. 316 sq mi.

Records available. October 1936 to September 1957.

Gage. Water-stage recorder. Datum of gage Is 569.40 ft above mean sea level (levels by 

International Boundary and Water Commission).

Average discharge. 21 years, 10.2 cfs (7,380 acre-ft per year); median of yearly mean 

discharges, 1.9 cfs (1,400 acre-ft per year).

Extremes. Maximum discharge during year, 10 cfs Jan. 30 (gage height, 1.81 ft); no flow 

most of year.

1936-57: Maximum discharge, 4,340 cfs Feb. 7, 1937 (gage height, 9.65 ft), from 

rating curve extended above 1,500 cfs by logarithmic plotting; no flow for part of 

each year.

Remarks. Records good. Flow regulated by Morena Reservoir (see p. 17) and Barrett Reservoir (see p. 18). Water diverted outside drainage basin by Dulzura conduit (see 

P. 19).

Revisions (water years). WSP 1245: 1937-38.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, In cubic feet per second)

1.2

1.3

1.4

1.5 2.0

1.6

1.7

1.8

3.7 

6.1

9.2

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

 15

16

17

18

19

20

21

?2

^3

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

(*)

(*)

0

0

0

Dec.

(»)

0

0

0

Calendar year 1956: Max 0

Jan.

O

0

0

0

0

0

0

0

0

*0

0.

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

3.0

*7.5 

47?

14.7

0.47

29

Feb.

2.8

2 .3

1.9

*1.6

1.3

1.1

.8

.7

.6

 5

.5

*.5

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.6

.6

.4

.3

.2

*72

r

20.0

0.71

40

Min 0

Mar.

0.3

.6

.8

.9

79

.9

.8

.8

.7

.9

*.8

.7

.7

.6

.5

.6

.6

.5

.5

.4

.4

.3

.3

.2

J,

.1

.1

.1

.1 

.1

15.4

0.50

31

Apr.

0.1 Q"

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0.1

0.003

0.2

May

(*)

0

0

0

June

0

0

0

July

(*)

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Mean 0 Ac-ft o

Water year 1956-57: Max 7.5 Mln 0 Mean 0.14 Ac-ft 100

* Discharge measurement or observation of no flow made on this day. 

Campo Creek near Campo, Calif.

Location. Lat 32°35'25", long 116°31'30", in SE£ sec. 24, T. 18 S., R. 4 E., on left

bank just upstream from bridge on State Highway 94, about 3.5 miles southwest of Campo.

Drainage area. 84 sq mi, approximately, of which 4 sq mi is in Mexico.

Records available . October 1936 to September 1957.

Gage. Water-stage recorder and broad-crested weir. Datum of gage is 2,179.08 ft above 

mean sea level (State Highway Department bench mark). Prior to Dec. 1, 1954, at datum 

1 ft higher.

Average discharge. 21 years, 3.03 cfs (2,190 acre-ft per year); median of yearly mean 

discharges, 1.6 cfs (1,200 acre-ft per year).

Extremes. No flow during year.

T9"36-57: Maximum discharge, 1,470 cfs Feb. 6, 1937 (gage height, 4.80 ft, present 

datum), from rating curve extended above 45 cfs on basis of velocity mean-depth relation and cross-sectional area at control; no flow for part of most years.

Remarks. No flow since May 17, 1956. Figures for 1956 calendar year are as follows: 

Maximum daily discharge, 0.4 cfs; minimum dally, 0.0 cfs; mean, 0.03 cfs; runoff, 

22 acre-ft. A small conservation reservoir a quarter of a mile upstream, completed 

in August 1956, partially regulates the flow.
TIA JUANA RIVER BASIN 21 

Tia Juana River near Dulzura, Calif.

Location.--Lat 32°33"50", long 116°46i25", In sec. 33, T. 18 S., R. 2 E., on left bank 

0.5 mile downstream from confluence of Cottonwood and Tecate Creeks and 5.5 miles 

south of Dulzura.

Drainage area. 478 sq ml, of which 62 sq ml 1s In Mexico. 

Records available.--October 1936 to September 1957.

Gage. Water-stage recorder. Datum of gage Is 542.42 ft above mean sea level (levels by 

International Boundary and Water Commission). Prior to Sept. 19, 1939, at datum 

2.00 ft higher.

Average discharge.--21 years, 16.5 cfs (11,950 acre-ft per year); median of yearly mean 

discharges, 5.4 cfs (3,900 acre-ft per year).

Extremes.--Maximurn discharge during year, 7.3 cfs Jan. 30 (gage height, 2.15 ft); no flow 

Oct. 1 to Dec. 25, June 25 to Sept. 30.

1936-57: Maximum discharge, 4,700 cfs Feb. 7, 1937 (gage height, 8.50 ft, present 

datum), from rating curve extended above 300 cfs on basis of velocity mean-depth and 

area studies; no flow for part of most years.

Remarks.--Records good. Discharge measurements or observations of no flow generally made 

twice a month. Flow regulated by Morena Reservoir (see p. 17 ) and Barrett Reservoir 

(see p. 18). Water diverted outside drainage basins by Dulzura conduit (see p. 19).

Cooperation. Eight discharge measurements furnished by International Boundary and Water 

Commission.

Discharge, in cubic feet per second, Water year October 1956 to Septemb

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

60

31

Total

Mean

Ac-ft

Oct.

0

0

o

Nov.

0

0

0

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

TT

.1

.1

.1

.1

0.6 i.ur1

1.2

Jan.

0.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

5.3

4.6

12.8

0.41

25

Feb.

3.2

274

2.

1.

1.

.3

75

.3

-

21.8

0.78

43

Mar.

0.5

.6

.6

.6

,1

.7

.6

.6

.6

.7

.7

.7

.6

.6

.5

.7

.6

.6

.6

.5

.4

.3

.3

.2

.2

.2

.2

.2

.1

rr

14.7

0.47

29

Apr.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.0

0.10

6.0

May

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.1

0.10

6.1

June

O.I

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

,1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

2.4

0.08

4.8

July

O

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 0.1 Min 0 Mean 0.04 Ac-ft 31

Water year 1956-57: Max 5.3 Mln 0 Mean 0.16 Ac-ft 115
22 TIA JUANA RIVER BASIN

Tia Juana River near Nestor, Calif.

Location. Lat 32°33il5", long 117°03'20", in NiNWirNE£ sec. 2, T. 19 S., R. 2 W., on right 

bank 2.3 miles southeast of Nestor and 5 miles upstream from mouth.

Drainage area. --1,668 sq mi, of which 1,198 sq mi is in Mexico.

Records available. --October 1914 to September 1915, October 1936 to September 1957.

Gage. --Water-stage recorder. Altitude of gage is 35 ft (from topographic map). Oct. 1, 

1914, to Sept. 30, 1915, reference point at site 2 miles downstream at mean sea level 

datum. Oct. 1, 1936, to Apr. 9, 1953, water-stage recorder at site 2 miles downstream 

at different datum.

Average discharge. 22 years, 50.5 cfs (36,560 acre-ft per year); median of yearly mean 

discharges , 12 cfs (8,700 acre-ft per year) .

Extremes. --Maximum discharge during year, 60 cfs Jan. 29 (gage height, 6.52 ft); no flow 

for most of year.

1936-57: Maximum discharge, 17,700 cfs Feb. 7, 1937 (gage height, 8.20 ft, site and 

datum then in use), from rating curve extended above 2,000 cfs on basis of velocitydepth relation and cross section after peak; no flow for part of each year.

Remarks . Records fair. Discharge measurements or observations of no flow generally made 

once a month. Flow regulated by Morena Reservoir (see p. 17) and Barrett Reservoir 

(see p. 18) in the United States, and Rodriguez Reservoir (capacity, 111,630 acre-ft) 

operated by the government of Mexico on Rio de las Palmas in Mexico. The contents at 

the end of the month for Rodriguez Reservoir are given in the following table:

Month-end contents, water year October 1956 to September 1957

Month

Sept. 30..........

Oct. 31. .........

Nov. 30. .........

Dec. 31. .........

Jan. 31. .........

Feb. 28. .........

Mar. 31. .........

Cooperation. --Records of co

Boundary and Water Commi

Contents 

(acre-feet)

6,440 

6,041 

5,625 

5,263 

5,170 

4,890 

4,530

Month

May 31..........

Contents 

(acre-feet)

4,250 

3,950 

3,550 

3,020 

2,520 

2,310

ntents of Rodriguez Reservoir furnished by International 

ssion, United States Section.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Jan. 29.

Month

Calendar year 1956.... 

Water year 1956-57....

Cfs -days Maximum

0 

9.8

Minimum

9 

0

Mean

e

.05

Runoff In 

acre-feet

36

0 

36

Note. Flow occurred only on days listed above.
OTAY RIVER BASIN 23

Jamul Creek near Jamul, Calif.

Location. La t 32°38'15", long 116°53'00", in NE^ sec. 4, T. 18 S., R. IE., on right 

bank 300 ft upstream from county road crossing at upper end of Lower Otay Reservoir, 

1.4 miles downstream from Dulzura Creek, and 5.5 miles south of Jamul.

Drainage area. 72 sq mi, approximately.

Records available. April 1940 to September 1957.

Gage.--Water-stage recorder and broad-crested weir with venturi flume for low-water notch. 

Datum of gage is 511.64 ft above mean sea level, datum of 1929. Prior to Oct. 1, 1951, 

at same site at datum 1.00 ft higher.

Extremes.--Maximum discharge during year, 7.7 cfs Feb. 14 (gage height, 1.45 ft); no flow 

for most of year.

1940-57: Maximum discharge, about 4,000 cfs Dec. 1, 1947 (gage height, 6.42 ft, 

present datum), from rating curve extended above 200 cfs by broad-crested weir formula; 

no flow for part of some years.

Remarks. Records good. Water diverted from Cottonwood Creek by Dulzura conduit discharges into Jamul Creek via Dulzura Creek and is included in discharge records for 

this station (see p. 19).

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

0.95

1.0

1.1 

1.3 

1.5

1.4 

4.4 

8.7

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

(*)

(*)

0

0

0

Nov.

0

0

0

Dec.

(*)

(*)

0

0

0

Jan.

0

0

0

0

0

0

.2

*.6

.4

.4

.2

.2

*.7

.3

,2

.1

.1

,1

0

0

0

*0

0

0

0

.3

.4

1.0

*3.8

5.1

TT

17.8

0.57

35

Feb.

*2.9

2.2

1.8

1.7

1.3

1.2

.9

.9

1,3

5.3

6,6

7.3

*5.8

1*5.

4,6

1.7

,9

.7

.6

,5

.3

.3

.3

,3

.i!

.2

.2

*.2

-

57.7

2.06

114

Mar.

0.4

.3

.2

',2,2

.2

.2

.2

.3

jJL

*.3

.2

.2

.2

.2

.4

.2

.2

.2

.2

.1

.1

0

0

0

0

0

*0

0

0 

0

5.2

0.17

10

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

0

.1

.1

0

0

0

0

0

*0

0.5

0.02

1.0

May

(*)

0

0

0

June

-- -

0

0

0

July

(*)

(*)

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 43 Mln 0 Mean 1.57 Ac-ft 1,140

Water year 1956-57; Max 7.5 Mln 0 Mean 0.2H Ac-ft 160

* Discharge measurement or observation of no flow made on this day.
24 OTAY RIVER BASIN

Otay River at Savage Dam, Calif.

Location.--Lat 32°36'30", long 116°55'45", In NE^-NEiy sec. 13, T. 18 S. , R. 1 W. , on 

Savage Dam outlet tower.

Drainage area,--98 sq ml, approximately.

Records available.--October 1936 to September 1957.

Gage, Staff gage read once daily. Datum of gage is 347.20 ft above mean sea level. Since 

Oct. I, 1945, auxiliary staff gage read two or more times per week near Upper Otay Dam. 

Datum of auxiliary gage is 477.50 ft above mean sea level.

Remarks.--Records of runoff represent all water reaching Upper and Lower Otay reservoirs, 

including rainfall on the reservoir surfaces and water brought in by Dulzura conduit, 

computed on basis of records of storage, release (draft), spill, leakage, and evaporation. Area and capacity tables for Upper Otay reservoir are dated Mar. 23, 1955; for 

Lower Otay reservoir, Apr. 3, 1956, and May 25, 1956. Monthly evaporation from lake 

surface computed on basis of evaporation from Colorado pan using coefficient of 0.80. 

Capacity of upper reservoir at spillway level (gage height, 72.02 ft), 2,825 acre-ft; 

capacity of lower reservoir at permanent spillway level (gage height, 137.50 ft), 

49,511 acre-ft. Dead storage of upper reservoir, 438 acre-ft below lowest outlet at 

gage height 43.32 ft and of lower reservoir, 1,154 acre-ft below lowest outlet at gage 

height 47.85 ft, included in these records. Dulzura conduit (see p. 19) carries water 

from Barrett Reservoir on Cottonwood Creek (see p. 18) to Dulzura Creek, whence the 

water is carried to Lower Otay reservoir by Jamul Creek (see p. 23). Small diversions 

for local use near reservoir. Water from these reservoirs is used for municipal supply 

by the city of San Diego.

Cooperation. Records computed in cooperation with city of San Diego.

Monthly runoff, water year October 1956 to September 1957

Month

December. ..........

Calendar year 

1956.............

May.... ...........

June ...... .......

July..............

Water year 

1956-57. ........

Gage

height 

(feet)t

Uppe

39.40

39.10

-

40.50

40.80

40.60

39.90

Contents 

(acrefeet)

r Otay

299

.

344

322

Gage 

height 

(feet)t

Lowe

66.60

_

63.50

Contents 

(acrefeet)

" Otay

4,620

.

3,851

Combined 

contents 

(acre-

,919

. 

,415

,313

,173

Change 

in 

contents

feet)

-115

-11

-3,527

-102

-160

-1,591

Draft 

(acre165

36

0

3,252

397

75

26

0

0

0

1,207

Evaporation 

(acre76

76

52

1,370

16

44

55

87

103

134

148

100

1,020

Spill

plus 

leakage

feet)

0

0

0

0

0

0

0

0

0

Runoff 

(acrefeet)

-72

-3

41

1,095

139

117

30

27

-6

-12

-25

-3

636
SWEETWATER RIVER BASIN 25 

Sweetwater River near Descanso, Calif.

Location. Lat 32°50'05", long 116 <> 37 I 20", in NW^SEij- sec. 25, T. 15 S., R. 3 E., on 

right bank at county road bridge, 0.7 mile downstream from unnamed tributary and 

1.3 miles south of Descanso.

Drainage area. 43.7 sq mi.

Records available.--November 1905 to June 1927, October 1956 to September 1957. Combined 

records of river and diversion, October 1956 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 3,269.24 ft above mean sea level, datum 

of 1929. November 1905 to June 1927, staff gages at several sites within 0.1 mile 

upstream at various daturas.

Average discharge.--23 years, 14.9 cfs (10,790 acre-ft per year), unadjusted; median of 

yearly mean discharges , 11 cfs (8,000 acre-ft per year).

Extremes. Maximum discharge during year, 7.0 cfs May 21 (gage height, 2.67 ft); no 

flow Oct. 1 to Jan. 6, June 16 to Sept. 30.

1905-27, 1956-57: Maximum discharge, 11,200 cfs Feb. 16, 1927 (gage height, 

13.2 ft, from floodmark, site and datum then in use), on basis of slope-area determination of peak flow; no flow for many days in some years.

Remarks. Records good. Sweetwater River diversion ditch diverts about 0.3 mile above 

station for irrigation below station. For records of combined discharge of river 

and diversion see following page.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

2.2

2.3

2.4

2.5

2.6

2.7

2.1 

3.8 

6.4

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

1617-

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

(*)

0

o

0

Nov.

(*)

.......

0

0

0

Dec.

(*)

0

0

0

Jan.

O

0

0

0

0

0

* f

*.

* t

!i.1

.2

.6

.8 *.9

77 

*.7

6.0

0.19

12

Feb.

0.7

.5

.3

.2

.2

.2

.2

.2

.2

.2

.2

*.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

~75 1.1

.4

.3

.2 *.2

-

8.0

0.29

16

Mar.

*0.7

.2

72

.2

.2

.2

.2

.2

.9

1.5

*.4

.3

.5

.6

.7

1.7

2.1

.5

.7

.5

.5

.4

.3

.3

.0

.9

.6

.3 *.4

.8 

1.0

26.0

0.84

52

Apr.

0.4

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

*.l

.1

.1

.1

.2

 1.4

1.4

1.4

1.0

.6

.4

.3

.2

.2

.2

10.1

0.34

20

May

0.1

.Z

.2

.Z

.Z

*.z

.5

.3

.2

.5

3.9

4.8

2.6

2.2 *2.4

2.0

1.5

1.1

3.1

3.8

5.6

5.8

4.0

2.9

2.4

2.0

1.4

.7

.7

.7 *.9

57.0

1.84

113

June

0.6

.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

*0

0

0

o

0

0

o

o

0

0

0

o

0

2.4

0.08

4.8

July

(*)

O

0

0

Aug.

(*)

(*)

0

0

0

Sept.

0

0

0

Calendar year 1956: Max - Mln - Mean - Ac-ft -

Water year 1956-57: Max 5.8 Mln o Mean 0.30 Ac-ft 218

Discharge measurement or observation of no flow made this day.
26 SWEETWATER RIVER BASIN

Sweetwater River near Descanso, Calif. Continued

Combined discharge, in cubic fe'et per second, of Sweetwater River and Diversion neai 

Descanso, Calif., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

0

0

0

.1

.1

.1

.2

.1

.1

.1

.2

.1

.1

.1 

.1

.1

.1

.1

.1

.1

.1

.1

.2

.6

.8

1.1

iii

1.2

7.2

0.23

14

Feb.

1.1

.9

.7

.6

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

1.4

.7

.6

.5

.4

.4

-

15.1

0.54

30

Mar.

1.1

.5

.4

.4

-^

.3

.3

.3

1.1

1.8

.6

.5

.7

.9

.9

2.0

H2.0

1.8

1.8

1.7

1.6

1.6

1.3

1.3

.9

.5

.6

1.0

1.0

33.5

1.08

66

Apr.

0.5

.4

.3

.3

.3

.2

.2

.1

.4

.2

.2

.2

.2

.2

.1

.1

.1 

.2

.2

.3

1.8

1.8

1.8

1.4

.9

.6

.6

.5

.4

.2

14,7

0.49

29

May

~T2 0.2

.2

.3

.4

.4

.5

.6

.3

.8

4.4

5.3

3.1

2.7

2.9

2.5

2.0 

1.5

3.6

4.3

6.1

6.3

4.5

3.4

2.8

2.3

1.6

.8

.9

.9

1.1

66.9

2.16

133

J.une

~0.8

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

2.7

0.09

5.4

July

0

0

0

Aug.

0

0

0

Sept.

*

0

0

0

Calendar year 1956: Max - Mfn - Mean - Ac-ft -

Water year 1956-57: Max 6.3 Min 0 Mean 0.38 Ac-ft 276
SWEETWATER RIVER BASIN 27

Sweetwater River at Loveland Dam, near Alpine, Calif.

Location. La t 32°46'54", long 116°47'35", in 17, T. 16 S. , R. 2 E. , at

Loveland Dam, 4 miles southwest of Alpine.

Drainage area.--100 sq mi.

Records available. October 1944 to September 1957.

Gage. Staff gage read once daily. Datum of gage is 1,215 ft above mean sea level.

Average discharge .--13 years, 4,020 acre-ft per year (5.55 cfs); median of yearly runoff, 

1,650 acre-ft per year (2.3 cfs).

Remarks. Records of runoff represent all water reaching Lake Loveland, including rainfall 

on the lake, computed on basis of records of storage, release (draft), spill, leakage, 

and evaporation. Monthly evaporation from lake surface computed on basis of evaporation from Colorado pan using coefficient of 0.80. Capacity and area ratings for the 

lake are dated April 1946. Capacity of lake at spillway level (gage height, 140.00 ft), 

25,390 acre-ft. Dead storage, 125 acre-ft below lowest outlet at gage height -1.25 ft, 

included in these records. One small diversion of about 0.3 cfs above lake. Water is 

released down Sweetwater River to Sweetwater Reservoir as required.

Cooperation. --Records furnished by California Water & Telephone Co. 

Revisions (water years) .--WSP 1091: 1945-46.

Monthly runoff, water year October 1956 to September 1957

Month

Water year 1956-57. .......

Elevation 

(feet)t

Contents 

(acrefeet)

Lake Loveland

1,254.46 

1,254.24 

1,253.90

-

1,253.76 

1,254.52 

1,254.92 

1,255.62 

1,256.20 

1,257.88 

1,257.48 

1,256.84 

1,256.34 

1,255.94

-

1,550 

1,543 

1,510

-

1,500 

1,554 

1,583 

1,635 

1,679 

1,811 

1,779 

1,729 

1,690 

1,659

-

Change

contents 

(acrefeet)

-16 

-24

-10

+167

+54 

+29 

+52 

+44 

+132 

-32 

-50 

-39 

-31

+109

Draft 

(acrefeet)

0 

0 

0

0

0 

O 

0 

0 

0 

O 

0 

0 

0

0

Evaporation 

(acrefeet)

24 

28 

21

352

7 

10 

17 

24 

24 

46 

55 

46 

37

339

Spill 

plus 

leakage 

(acrefeet)

O 

0 

0

0

0 

0

0 

0 

0 

0 

0 

0 

0

O

Runoff 

(acrefeet)

8 

4 

11

519

61 

39 

69 

68 

156 

14 

5 

7 

6

448

t On first day of month.

Note. For months when Inflow to the lake was small and. other elements were large, negative or 

discordant figures of runoff may appear. This arises primarily from the difficulty of computing 

runoff as the residual of several larger quantities which are not susceptible of measurement with 

a precision necessary to produce a final answer within desirable limits of accuracy.
28 SWEETWATER RIVER BASIN

Sweetwater River at Sweetwater Dam, Calif.

Location. --Lat 32°41'20", long 117 "00 "35", in La Macion Grant, at Sweetwater Dam, 6 miles 

east of national City, San Diego County, and 8 miles upstream from mouth.

Drainage area. 181 sq mi.

Records available. October 1887 to September 1957.

Gage. Staff gage read once daily. Datum of gage is 149.12 ft above mean sea level, 

datum of 1929.

xcue rom gures o ne now rom weewaer ver asn. e

rom Colorado River reached this reservoir on Apr. 16, 1948. Monthly evaporation

from lake surface computed on basis of evaporation from Colorado pan using coefficient of 0.80. Capacity and area ratings for reservoir are dated December 1947.

Capacity of reservoir at spillway level (gage height, 89.70 ft), 27,690 acre-ft.

Dead storage, 4 acre-ft below lowest outlet at gage height 19.7 ft, included in these

records. Mo diversion above reservoir. Regulation at Lake Loveland (see p. 27).

Water is released as required for irrigation and domestic use in Chula Vista, National

City,and contiguous areas.

Cooperation. --Records furnished by California Water & Telephone Co. 

Revisions (water years J.--WSP 811: 1928-32. WSP 1091: 1944-46.

Monthly net inflow water year October 1956 to September 1957

Month

Calendar 

year 1956. . . .

May............

September. ..... 

October. .......

Water year 

1956-57... ...

Gage 

height 

(feet)t

Sweetwater

-

56.06

51.46 

50.09

-

Contents 

(acrefeet)

Reservoir

-

4,870 

4,439

-

Change 

contents

feet)

-970

-431

-1,445

Draft 

(acre12,421

1 349

1,201

11,421

Evaporation 

(acrefeet)

1,783

130

1,480

Spill 

plus 

leakage

feet)

O

0

0

0

Total 

inflow 

(aerefeet)

911

13,234

1,142

840

889

975

937

900

11,456

Colorado 

River 

water 

imported

(acrefeet)

863

12,159

868

766

854

886

890

855

920

882

10,497

Sweetwater 

River 

basin 

net inflow

(acrefeet)

54

48

69

1,075

274

74

66

35

89

47

140

45

18

959

t On first day of month.

Note. The net Inflow from the basin of Sweetwater River Is equal to the algebraic sum of (l) 

change In contents, (2) draft, (3) evaporation, and (4) spill plus leakage, minus (5) the quantity 

Imported from Colorado River. Computation of net Inflow from Sweetwater River basin, using the 

figures in the above table and resulting in the figures in the last column of the table, gives 

results that may be considerably less accurate than would be possible if a simple gaging station 

could be maintained on the river. This arises from the difficulty of computing the net inflow 

from Sweetwater River basin as the residual of several larger quantities which are not susceptible 

to measurement with a precision necessary to produce a final answer within desirable limits of 

accuracy.
SAN DIEGO RIVER BASIN 29 

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif.

Location. Lat 32°59'20", long 116°35'10", in NE^ sec. 5, T. 14 S., R. 4 E., on outlet 

tower at Cuyamaca Dam, 7 miles south of Julian,

Drainage area.--12.0 sq mi.

Records available. October 1935 to September 1957 (inflow to Cuyamaca Reservoir; rainfall on water surface deducted October 1939 to September 1944). June 1912 to September 1926, records not equivalent as they represent only outflow (draft) from Cuyamaca 

Reservoir.

Gage. Staff gage read periodically. Datum of gage is 4,600.2 ft above mean sea level 

[Helix Irrigation District bench mark).

Average discharge. 13 years (1944-57), 1,970 acre-ft per year (272 cfs); median of yearly 

mean runoff, 870 acre-ft per year (1.2 cfs).

Remarks. Records of runoff represent all water reaching Cuyamaca Reservoir, including 

precipitation on reservoir, computed on basis of records of storage, release (draft), 

spill, leakage, and evaporation. Monthly evaporation from lake surface computed on 

basis of evaporation from Colorado pan using a coefficient of 0.80. Capacity and area 

ratings for reservoir are based on a resurvey made in the fall of 1949. Capacity of 

reservoir at spillway level (gage height, 35.4 ft), 11,540 acre-ft. No dead storage. 

Small diversions for local use near dam. Water is released down Boulder Creek to El 

Capitan Reservoir.

Cooperation.--Records of reservoir operation furnished by Helix Irrigation District. 

Revisions (water years).--WSP 1011: 1943.

Monthly runoff, water year October 1956 to September 1957

Month

March. ........................

Water year 1956-57 ..........

Gage 

height . 

(feet)t

Contents 

(acrefeet)

Cuyamaca Reservoir

:-

13.80 

15.10 

15.70 

12.30 

14.20

_

:-

79 

198 

280 

17 

109

_

Change 

In 

contents 

(acrefeet)

0 

O

0

-1

+79 

+119 

+82 

-263 

+92 

-109 

O 

0 

0 

0

0

Draft 

(acrefeet)

0 

0 

0

325

0 

0 

0 

338 

37 

109 

O 

0 

O 

O

484

Evaporation 

(acrefeet)

0 

0 

O

73

D 

3 

14 

18 

2 

5 

0 

0

o 

o

42

Spill 

plus 

leakage 

(acrefeet)

0 

0 

0

0

oooooooooo

0

Runoff 

(acrefeet)

0 

0 

0

397

79 

122 

96 

93 

131 

5 

0 

0 

0 

0

526

t On first day of month.

Note.--For months when Inflow to the reservoir was small and other elements were large, negative 

or discordant figures of runoff may appear. This arises primarily from the difficulty of computing runoff as the residual of several larger quantities which are not susceptible to measurement 

with a precision necessary to produce a final answer within desirable limits of accuracy.
30 SAN DIEGO RIVER BASIN

San Diego River at El Capitan Dam, Calif.

Location. Lat 32°53'00", long 116°48'25", in HE^SE^NE^ sec. 7, T. 15 S. , R. 2 E. , on 

outlet tower of El Capitan Dam, 7 miles east of Lakeside.

Drainage area. 190 sq mi.

Records available . October 1945 to September 1957. October 1936 to September 1945 records not equivalent owing to exclusion of greater part of flow released from Cuyamaca 

Reservoir.

Gage. Staff gage read daily. Datum of gage is 553.0 ft above mean sea level.

Average discharge.--12 years, 14.2 cfs (10,300 acre-ft per year); median of yearly mean 

discharge, 5.5 cfs (4,000 acre-ft per year).

Remarks. Records of inflow represent all water reaching El Capitan Res> rvoir from basin 

of San Diego River, including rainfall on reservoir and water passing down Boulder 

Creek from Cuyamaca Reservoir, computed on basis of records of storage, release (draft), 

spill, leakage, and evaporation. Monthly evaporation from lake surface computed on 

basis of Colorado pan using coefficient of 0.80. Revised area and capacity ratings 

for reservoir, based on a resurvey completed in 1955, are dated Mar. 29, 1956, and 

May 25, 1956, respectively. Capacity of reservoir at spillway level (gage height, 

197.00 ft), 112,810 acre-ft. Dead storage, 59.2 acre-ft below outlet at gage height 

21.0 ft, included in these records. No significant diversion above reservoir. Flow 

regulated by Cuyamaca Reservoir (see p. 29). Water is released as required for municipal use and irrigation.

Cooperation. Records computed in cooperation with city of San Diego. 

Revisions (water years). WSP 1091: 1946.

Monthly Inflow, water year October 1956 to September 1957

Month

Water year 1956-57 ................

Gage 

height 

(feet)t

Contents 

(acrefeet)

El Capitan Reservoir

73.29 

72.95 

72.63

-

72.51 

73.18 

73.44 

60.98 

53.28 

56.99 

57.51 

56.54 

55.73 

55.26

55.39

6,684 

6,584 

6,491

- .

6,456 

6,652 

6,729 

3,523 

2,252 

2,814 

2,899 

2,742 

2,615 

2,543

2,563

Change 

In 

contents 

(acrefeet)

-100 

-93 

-35

-1,279

+ 196 

+77 

-3,206 

-1,271 

+562 

+85 

-157 

-127 

-72

-4,141

Draft 

(acrefeet)

0 

0 

0

1,372

0 

60 

3,626 

1,986 

41 

78 

73 

54 

22

5,940

Evaporation 

(acrefeet)

132 

143 

99

1,746

28 

48 

77 

65 

63 

117 

138 

118 

99

1,127

Spill 

plus 

leakage 

(acrefeet)

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

O

0

Inflow 

(acrefeet)

32 

50 

64

1,839

224 

185 

497 

780 

666 

280 

54 

45 

49

2,926

t On first day of month.

Note..' For months when Inflow to the reservoir was small and other elements were large, negative 

or discordant figures of runoff may appear. To the extent that such discrepancies may be attributed 

to changes in reservoir capacity since the time of the rating used, or to uncertainties In the rating, 

quantities too small for periods of falling stage In the reservoir are compensated by quantities too 

large for periods of corresponding rising stage.
SAN DIEGO RIVER BASIN 31

San Diego River near Santee, Calif.

Location. Lat 32°49'27", long 117°03'17", in Ex Mission San Diego Grant, on right bank 

in Mission Gorge, 0.2 mile upstream from left tributary and 6 miles west of Santee, 

San Diego County.

Drainage area. 380 sq mi.

Records available . May 1912 to September 1957 (incomplete prior to 1920).

Gage.--Water-stage recorder and unfinished rubble dam control. Altitude of gage is 

180 ft (from topographic map). Prior to Nov. 10, 1920, staff gage at site l| miles 

upstream at different datum. Nov. 10, 1920, to Dec. 1, 1954, water-stage recorder at 

present site at datum 1.0 ft higher.

Average discharge.--42 years (1912rl5, 1917-18, 1919-57), 28.2 cfs (20,420 acre-ft per 

year) ; median of yearly mean discharges, 4.6 cfs (3,300 acre-ft per year).

Extremes.--Maximum discharge during year, 165 cfs Jan. 29 (gage height, 2.62 ft); no 

flow for several months.

1912-57; Maximum discharge, 70,200 cfs Jan. 27, 1916 (gage height, 25.1 ft, site 

and datum then in use) , on basis of velocity-area study; no flow at times in most 

years.

Remarks. Records fair. Discharge measurements or observations of no flow generally made 

twice a month. Small flows of less than 0.05 cfs, from rising water at the gage, have 

been called zero. Flow regulated by Cuyamaca, El Capitan (see p. 29, 30), and San 

Vincente Reservoirs. Diversions above station by city of San Diego for municipal 

supply and by Helix Irrigation District.

Rating table, water year 1956-57, except period of Indefinite stage-discharge

relation (gage height, in feet, and discharge, In cubic feet per'second)

(Shifting-control method used Apr. 5 to May 4)

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.2

3".5 

5.7

1.8

1.9

2.0 

2.2

9.3

18

30

68

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1956 : Max 15

-Jan.

0

0

0

0

0

0

0

e.5

el

e2

e2.5

e2

e20

e7

e3

1.4

.9

.7

.7

.7

.9

.9

.8

.7

.9

6.1

12

18

5743"

13

195.7

6.31

388

Feb.

5.3

3.5

3.1

2.4

2.0

1.8

1.7

1.6

1.7

1.7

1.6

1.4

1.4

1.4

1.4

1.4

1.6

1.6

1.5

1.5

1.5

1.5

2.5

6.1

274

2.8

2.1

1.7

-

60.2

2.15

119

Mln 0

Mar.

3.3

8.9

37T

2.1

1.7

1.6

1.2

1.2

.6

.6

4.8

.9

.8

.6

1.0

3.2

1.9

1.4

1.4

1.4

1.1

.7

.7

.7

.6

.5

.5

.5

.5

.5

44.5

1.44

88

Apr.

0.6

.5

.4

.3

.3

.2

.2

.1

.1

.1

.1

.1

0

0

0

0

0

0

.1

.1

.1

.7

.9

77

.4

.3

.2

.2

.2

.1

7.0

0.23

14

May

0.

0

.

.9

7.0

373

1.7

1.2

.8

.6

.5

.7

.7

.9

.7

.7

.5

.4

.2

.2

.2

.1

.1

.1

22.4

0.72

44

June

0

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.007

0.4

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Mean 0.24 Ac-ft 176

Water year 1956-57 : Max 57 Mln 0 Mean 0.90 Ac-ft 653

e Stage-discharge relation Indefinite; discharge estimated on basis of 3 discharge measurements, 

1 field estimate, and weather records.
32 SAN DIEGUITO RIVER BASIN

Santa Ysabel Creek at Sutherland Dam, Calif.

Location. Lat 33°07'05", long 116°47'10", in NW£NW£SW£ sec. 21, T. 12 S., R. 2 E. , on

 face of Sutherland Dam, 1.6 miles upstream from Black Canyon Creek and 7 miles northeast of Ramona.

Drainage area.--57 sq mi, approximately.

Records available . December 1912 to September 1928, October 1936 to September 1957. 

Prior to October 1953, published as "near Mesa Grande."

Gage. Water-stage recorder. Datum of gage is 1,912.00 ft above mean sea level (levels

 Dy city of San Diego). Prior to Oct. 1, 1936, water-stage recorder at same site at 

various datums. Oct. 1, 1936, to Sept. 30, 1953, water-stage recorder at site 1 mile 

downstream at different datum. Mar. 7 to Nov. 29, 1954, staff gage at present site 

and datum.

Average discharge. 36 years (1913-28, 1936-57), 15 170 acre-ft .per year (21.0 cfs); 

median of yearly runoff, 8,400 acre-ft per year (12 cfs).

Remarks. Records of runoff represent all water reaching Sutherland Reservoir including

 rainfall on reservoir, computed on basis of records of storage, release (draft), 

spill, leakage, and evaporation. Monthly evaporation from lake surface computed on 

basis of evaporation from Colorado pan using coefficient of 0.80. Capacity and area 

ratings for the reservoir are based on an aerial survey made in 1949. Capacity of 

reservoir at spillway level (gage height, 145.00 ft), 29,680 acre-ft. Dead storage, 

176 acre-ft below lowest outlet at gage height 28.00 ft, included in these records. 

Small diversion above reservoir. Water is released as required for municipal use.

Cooperation.--Records computed in cooperation with city of San Diego.

Monthly runoff, water year October 1956 to September 1957

Month

October. .......................

Water year 1956-57 ...........

Gage 

height 

(feet)t

Contents 

(acrefeet)

Sutherland Dam

58.52 

58.07 

57.66

.-

57.47 

59.73 

51.52 

53.93 

54.76 

56.36 

56.19 

55.48 

54.78 

54.30

-

1,860 

1,812 

1,769

-

1,749 

1,994 

1,206 

1,408 

1,483 

1,636 

1,619 

1,551 

1,485 

1,439

-

Change 

In 

contents 

(acrefeet)

-48

-43 

-20

+334

+245

-788 

+202 

+75 

+153 

-17 

-68 

-66 

-46

-421

Draft 

(acrefeet)

0 

0 

o

0

o 

977 

0 

0 

0 

0 

0 

0 

0

977

Evaporation 

(acrefeet)

31 

38 

26

462

12 

12 

18 

24 

28 

46 

55 

47 

37

374

Spill 

plus 

leakage 

(acrefeet)

0

0 

0

0

1 

1 

0 

0 

o 

0 

0 

0 

0

2

Runoff 

(acrefeet)

-17 

-5 

6

796

258 

202 

220 

99 

181 

29 

-13 

-19 

-9

932

t On first day of month.

Note. For months when Inflow to the reservoir was small and other elements were large, negative 

or discordant figures of runoff may appear. This arises primarily from the difficulty of computing 

runoff as a residual of several larger quantities which are not susceptible of measurement with a 

precision necessary to produce a final answer within desirable limits of accuracy.
SAN DIEGUITO RIVER BASIN 33

Santa Ysabel Creek near Ramona, Calif.

Location.--Lat 33°06'25" , long 116 0 51'55", in SW^NWvNEi sec. 27, T. 12 S., R. IE., on 

left bank 1.6 miles downstream from Temescal Creek and 4.5 miles north of Ramona.

Drainage area. 110 sq mi.

Records available.--February 1912 to February 1923, October 1943 to September 1957.

Gage. Water-stage recorder and concrete control. Datum of gage is 847.88 ft above mean 

sea level (levels by city of San Diego Water Department). Prior to Jan. 31, 1916, 

staff gage at site half a mile upstream at different datum. Jan. 31, 1916, to Jan. 1, 

1921, staff gage and water-stage recorder at present site at datum 0.3 ft higher. 

Jan. 2, 1921, to Nov. 2, 1922, water-stage recorder at present site at datum 0.3 ft 

higher.

Extremes.--Maximum discharge during year, 12 cfs Mar. 20 (gage height, 2.43 ft); no flow 

for several months.

1912-23, 1943-57: Maximum discharge, 28,400 cfs Jan. 27, 1916 (gage height, 

14.0 ft, datum then in use), from rating curve extended above 1,500 cfs by velocityarea study; no flow for parts of some years.

Remarks. Records good. Discharge measurements or observations of no flow generally made 

twice a month. Flow regulated by Sutherland Reservoir beginning July 1954 (see p. 32 ). 

Small diversions above station.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

o

o

0

Dec.

O

0

0

Jan.

O

0

0

0

0

0

0

O

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

Q

.1

.1

.2

.1

.4

4.3

5.5

3.0

13.8

0.45

27

Feb.

2.2 rr

.9

.6

.4

.3

.2

.2

.3

.3

.3

.3

.3

.2

.3

.2

!3

.3

.4

.3

.3

.3

.8

.9

.5

.4

.3

.5

-

13.7

0.49

27

Mar.

4.2

-3.2

1.4

1.0

.7

.5

^3

.3

.6

3.9

1.1

.8

2.6

4.3

2.9

2.2

2.4

2.0

3.3

.n

5.1

2.2

1.2

1.0

.8

.7

.6

1.1

.9

.7

.5

63.5

2.05

126

Apr.

0.5

.3

.2

.2

J,

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.4

.3

.6

1.6

1.0

.9

.7

.3

.3

.3

.1

.1

.1

9.3

0.31

18

May

0.1

0

0

0

0

0

.1

.2

.1

.2

.8

1.0

1.6

1.6

1.4

1.0

.7

.6

1.1

2.6

4.7

6.8

5.5

4.6

3.5

2.0

1.7

1.4

1.2

1.2

1.0

46.7

1.51

93

June

0.8

.6

.2

.1

0_

0

0

0

0

.7

.5

.4

.2

.1

.1

.1

0

0

0

0

0

0

4.6

0.15

9.1

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956 : Max 214 Mln 0 Mean 1.09 Ac-ft 792

Water year 1956-57 : Max 11 Mln 0 Mean 0.42 Ac-ft 300
34 SAN DIEGUITO RIVER BASIN

Santa Ysabel Creek near San Pasqual, Calif.

Location.--Lat 33°05'10", long 116°54'56", in NE^NW^-SE^ sec. 31, T. 12 S., R. 1 E., on 

left bank 1.1 miles downstream from Clevenger Canyon and 2 miles east of San ISsqual.

Drainage area. 128 sq mi.

Records available. December 1905 to September 1912 (published as "near Escondido") , 

April 1947 to November 1955 (irrigation seasons only), April 1956 to September 1957.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 510 ft (from topographic map). Dec. 17, 1905, to Sept. 30, 1912, staff gage at site a quarter of a 

mile downstream at different datum.

Extremes. Maximum discharge during year, 15 cfs Mar. 1 (gage height, 1.64 ft); no flow 

for several months.

1905-12, 1947-57: Maximum discharge observed, 8,000 cfs Mar. 24, 1906 (gage height, 

6.3 ft, site and datum then in use); no flow for parts of some years.

Remarks. Records good. Discharge measurements generally made twice a month during periods of flow. Small diversion above station. Flow regulated since July 1954 by 

Sutherland Reservoir (see p. 32).

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

0.4

.5

1.1 2.4

1.3 4.2

1.5 8.0

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

o

0

0

0

.1

'.z

.8

1.2 

1 ,8

6.7

0.22

13

Feb.

1.3

1

.9

.7

.6

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

'.1.5

.8

.7

.6

.6

.6

-

16.3

0.58

32

Mar.

3.4

2.9

1.9

1.4

1.2

1.0

.9

.8

1.0

3.4

2.5

1.6

1.6

3.0

2.7

2.4

2.0

1.7

1.9

4.4

4.0

1.8

1.0

.9

.8

.7

.7

.7

.8

.7

.7

54.5

1.76

108

Apr.

0.6

.6

.6

.6

.6

.5

.5

.4

.4

.4

.4

.3

.3

.3

.3

.2

.2

.4

.4

.8

1.9

2.0

1.6

1.2

l.U

.7

.6

.5

.4

.3

19.0

0.63

38

May

0.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.5

.9

.9

1.2

1.2

1.0

.9

.7

.9

l.Z

2.4,

4.1

3.5

2.6

2.0

1.3

.9

.8

.6

.5

.4

3D. 6

0.99

61

June

0.4

.2

.2

.1

.1

0

0

0

0

.1

.1

.1

o

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

1.3

0 .04

2.6

July

0

u

u

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956 : Max - Mln - Mean - Ac-ft -

Water year 1956-57 : Max 4.4 Mln 0 Mean 0.35 Ac-ft 255
SAN DIEGUITO RIVER BASIN

Guejito Creek near San Pasqual , Calif.

Location. Lat 33°06'57" , long 116°57'08", In W^MpSE^ sec. 23, T. 12 S., R. 1 W., on 

left bank 0.3 mile upstream from Rockwood Canyon Creek and 1.8 miles north of San 

Pasqual .

Drainage area . 24 sq ml, approximately.

Records available. December 1946 to September 1957.

Gage. Water-stage recorder and concrete, control . Altitude of gage Is 560 ft (from 

Topographic map) .

Average discharge . 10 years (1947-57), 0.92 cfs (666 acre-ft per year) i median of yearly 

mean discharges , 0.5 cfs (360 acre-ft per year).

Extremes . Maximum discharge during year, 16 cfs Jan. 29 (gage height, 2.12 ft); no flow 

Oct. 1 to Jan. 6, June 19 to Sept. 30.

1946-57: Maximum discharge, 842 cfs Jan. 18, 1952 (gage height, 4.11 ft); no flow 

for parts of most years.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Discharge measurements generally made twice a month. Diversion about a quarter of a 

mile upstream for Irrigation.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

1.2 

1.6

.7 

1.6

3.2 

5.5 

7.6

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

o

Dec.

0

0

O

Jan.

O

0

0

0

0

0

.1

.3

.2

.3

.2

.1

.9

.4

.3

.1

.1

.1

.1

.1

.2

.1

.1

.1

.2

.6

.6

.5

6.2

~ 0 O .0

1.3

17.0

0.55

34

Feb.

~T6 0.7

.5

.4

.5

.3

.3

.3

.3

.3

.3

.3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 4

a. 4

a. 3

a. 3

.3

.4

-

9.7

0.35

19

Mar.

1.2

.8

.5

.5

.4

.4

.3

.3

.5

1.7

.8

.6

.5

.5

.4

.6

.6

.5

.4

.4

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

14.5

0.47

29

Apr.

0.2

.2

.2

.2

.2

.2

.2

.2

.1

.2

.2

.2

.1

.1

.2

.2

.2

.3

.3

.3

.9

.9

.7

.5

.4

.3

.2

.2

.2

.2

8.5

0.28

17

May

0.1

.1

.1

.1

.1

.1

.1

.2

.1

.2

.4

.6

.5

.4

.4

.3

.3

.2

.5

.5

.9

.6

.4

.3

.3

.2

.2

.1

.1

.1

.1

8.6

0.28

17

June

O.

!l

.1

jl

.2

O

0

o

0

0

0

o

0

0

0

0

o

2.1

0.07

4.2

July

0

0

O

Aug.

0

0

0

Sept.

-----

0

0

0

Calendar year 1956: Max 206 Min O Mean O.76 Ac-ft 555

Water year 1956-57: Max 6.2 Min 0 Mean O.17 Ac-ft 12O

Peak discharge (base, 3O cfs). No peak above base.

a No gage-height record; discharge estimated on basis of weather records and records for Santa 

Ysabel Creek near San Pasqual.

510529 O-59-4
36 SAN DIEGUITO RIVER BASIN 

Santa Maria Creek near Ramona, Calif.

Location.--La t 33°03'08", long 116°56 I 41", in SE^SE^SEc- sec. U, T. 13 S., R. 1 W. , on 

left bank 4.6 miles upstream from mouth and 3.8 miles northwest of Ramona.

Drainage area. 58 sq mi, approximately.

Records available. November 1912 to September 1920, October 1946 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 1,300 ft (from 

topographic map). Original installation destroyed by flood of Jan. 16, 1916; rebuilt 

at same site at different datum.

Ave rage d i s charge .--18 years (1913-20, 1946-57), 5.30 cfs (3,840 acre-ft per year); 

median of yearly mean discharges, 0.7 cfs (510 acre-ft per year).

Extremes.--Maximum daily discharge during year, 0.1 cfs Apr. 2-7; no flow for most of 

year.

1912-20, 1946-57: Maximum discharge, 7,140 cfs Jan. 27, 1916 (gage height, 15.9 ft, 

datum then in use), from rating curve extended above 600 cfs on basis of slope-area 

determination of peak flow; no flow for several months each year.

Remarks. Records good. Discharge measurements or observations of no flow generally 

made twice a month. City of Ramona pumps water from stream above station for municipal supply.

Revisions (water years).--WSP 1285: 1952.

Discharge, in cubic feet per second, water year October 1956 to Septembe

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1956: Max 0.1

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.6

0.02

1.2

May

0

0

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Min 0 Mean 0.0003 'Ac- ft 0.2

Water year 1956-57: Max 0.1 Min 0 Mean 0.02 Ac-ft 1.2

Peak discharge (base, 20 cfs). No peak above base.
SAN DIEGUITO RIVER BASIN 37

San Dlegulto River near San Pasqual, Calif.

Location. Lat 33°04 I 00", long 117°02'05", In San Bernardo Grant, on right bank 1.5 miles 

downstream from Bach Creek, 4.5 miles southeast of Escondido, and 5 miles west of San 

Pasqual, San Diego County.

Drainage area.--250 sq mi, approximately.

Records available.--April 1947 to September 1957. Prior to April 1956, irrigation seasons only.

Gage.--Water-stage recorder. Altitude of gage is 325 ft (from topographic map).

Remarks. No flow since June 20, 1954. Observations of no flow generally made once a 

month. Diversions for irrigation and pumping from wells along river in San Pasqual 

Valley above station. Plow regulated since July 1954 by Sutherland Reservoir (see 

p. 32V

San Dieguito River at Lake Hodges, Calif.

Location. Lat 33°02'48", long 117°07'33", in NE^SE^NW^ sec. 18,. T. 13 S., R. 2 W. , on 

right bank 800 ft upstream from Lake Hodges Dam and 6.2 miles southwest of Escondido.

Drainage area. 303 sq mi.

Records available.--January 1916 to September 1957. Published as "near Bernardo" prior 

to October 1920 and as \iear Escondido" October 1920 to September 1925.

Gage. Staff gage read once daily. Datum of gage is 200.0 ft above mean sea level. Prior 

To January 1919, staff gage at same site at different datum (prior to completion of 

dam).

Remarks.--Records of net inflow represent all water from the drainage basin reaching 

Lake Hodges, including rainfall on lake, computed on basis of records of storage, 

release (draft), spill, leakage, evaporation, and supplemental water from Colorado 

River delivered through aqueduct of San Diego County Water Authority. Capacity and 

area ratings for lake are based on a resurvey in 1948. Monthly evaporation from lake 

surface computed on basis of evaporation from Colorado pan using coefficient of 0.80. 

Capacity of lake at spillway level (gage height, 115.00 ft), 33,550 acre-ft. Dead 

storage, 1,160 acre-ft below lowest outlet at gage height 54.0 ft, included in these 

records. Diversions for irrigation above Lake Hodges. Water drawn from Lake Hodges 

passes through a conduit to San Dieguito reregulating reservoir, from which it is 

released as required for municipal use. Plow regulated since July 1954 by Sutherland 

Reservoir (see p. 32).

Cooperation.--Records computed in cooperation'with city of San Diego. 

Revisions (water years).--WSP 1091: 1946. WSP 1121: 1947.

Monthly net inflow, water year October 1956 to September 1957

Month

Calendar year 1956

May........ .........

July ................

Water year 1956-57

Gage 

height 

(feet)t

Lake

63.20 

64.30 

63.80

-

60.20 

66.20 

67.50 

68.50 

69.30 

71.00 

70.70 

69.80 

68.80 

67.00

-

Contents 

(acrefeet)

Hodges

2,640 

2,863 

2,760

-

2,071 

3,276 

3,575 

3,810 

4,005 

4,440 

4,362 

4,130 

3,882 

3,460

-

Change 

In 

contents 

(acrefeet)

+223 

-103 

-689

-221

-1,205 

+299 

+235 

+195 

+435 

-78 

-232 

-248 

-422

+820

Draft 

acrefeet)

946 

893 

643

10,396

325 

332 

405 

722 

836 

1,190 

1,360 

L.370 

1,230

10,252

Evaporation 

(acrefeet)

51 

61 

37

758

15 

22 

47 

62 

84 

115 

125 

106 

82

807

Spill 

plus 

leakage 

(acrefeet)

0.1 

.1 

.2

2.1

.3 

.6 

.7 

.6 

.5 

.5 

.4 

.3 

.3

4.6

Total 

Inflow 

(acrefeet)

1,220 

851 

-9

10,933

1,545 

654 

688 

980 

1,356 

1,228 

1,253 

1,228 

890

11,884

Colorado 

River 

water 

Included 

(acrefeet)

1,375 

966 

0

11,939

1,238

646 

683 

986 

1,398 

L,358 

L,311 

1,364 

948

12,273

Net 

Inflow 

(acrefeet)

-155 

-115 

-9

-1,006

307 

8 

5 

-6 

-42 

-130 

-58 

-136 

-58

-389
38 SAN LUIS REY RIVER BASIN

West Pork San Luis Rey River near Warner Springs, Calif..

Location.--Lat 33"17'50", long 116°45'30", in San Jose del Valle Grant, on left bank 

0.1 mile downstream from small unnamed tributary, 2.5 miles upstream from mouth, and 

7.5 miles west of Warner Springs, San Diego County.

Drainage area. 25.6 sq mi.

Records available. January 1913 to November 1915, October 1956 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 2,800 ft (ftom 

topographic map). Prior to Oct. 1, 1956, at different datum.

Extremes. Maximum and minimum discharges during the year not determined.

T913-15, 1956-57: Maximum discharge recorded, 580 efs Feb. 19, 1914 (gage height, 

4.37 ft, datum then in use); no flow at times in 1913-15.

Remarks. Records fair prior to May 1, good thereafter. Discharge measurements generally 

made twice a month. No regulation or diversion.

Rating table, May 9 to Sept. 30, 1957 (gage height, in

5.5

5.6

5.7

5.8

5.9

0.1 

.5 

1.3 

2.7 

4.9

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

> ao.l

3.1

0.1

6.1

Nov.

> aO.l

3.0

0.1

6.0

Dec.

> aO.l

3.1

0.1

6.1

Jan.

.

-

to.i

-

_

_

_

t.6

-

.

_

_

.

_

tl.O

-

_

_

-

_

-

-

t.4

-

_

_

-

~

t2.6

.

.

-

Feb.

-

-

_

t5.2

-

_

.

-

-

-

_

-

-

-

t2.8

-

-

t2.0

-

_

-

-

-

-

_

_

t2.4

-

.

.

-

Mar.

t20

_

_

_

-

_

_

-

-

-

_

_

-

-

_

-

te.o

_

_

-

_

_

_

_

-

_

_

tl.4

-

-

~

_

_

-

Apr.

to. 8

-

_

_

_- '-

-

-

-

_

-

-

_

-

-

-

tl.l

-

-

-

-

-

-

-

May

aO.6

.6

.6

.7

.8

.8

.8

.8

.9

.8

.8

1.5

3.6

4.5

4.2

2.3

1.6

1.3

1.0

.8

.8

.9

.9

.8

36.6

1.18

73

June

0.8

.6

.6

.5

.5

.4

.4

..4

.5

.6

.7

.6

.6

.5

.6

.4

.4

.4

.4

.4

.4

.4

.3

.4

.3

.3

.2

77

.3

.3

13.5

0.45

27

July

~0.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

,2

.2

.2

.2

.2

.3

.3

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

6.1

0.20

12

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

3.7

0.12

7.3

Sept.

0.2

.2

.1

TT

.1

.1.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.3

0.11

6.5

Calendar year 1956: Max - Min - Mean - Ac-ft -

Water year 1956-57: Max - Mln - Mean - Ac-ft -

t Result of discharge measurement.

a No gage-height record; discharge estimated on basis of 14 discharge measurements and weathe 

records.
SAN LUIS REY RIVER BASIN 39

San Luis Rey River at Lake Henshaw, near Mesa Grande, Calif.

Location. Lat 33°14'20", long 116 C 45'43", in Valle de San Jose Grant, at Henshaw Dam, 

4 miles north of Mesa Grande, San Diego County.

Drainage area . 209 sq mi.

Records available.--January 1923 to September 1957. October 1911 to January 1923 at site 

1 mile downstream published as "near Mesa Grande"; records not equivalent due to change 

in natural water losses resulting from creation of Lake Henshaw.

Gage. Staff gage read once daily. Datum of gage is 2,620 ft above mean sea level. Prior 

to June 14, 1912, staff gage at same site at different datum. June 14, 1912, to January 1923, water-stage recorder at site 1 mile downstream at different datum.

Average discharge. 11 years (1911-22), 43,160 acre-ft per year (59.6 cfs), below damsite; 

3b years (1922-57), 21,430 acre-ft per year (29.6 cfs), inflow to Lake Henshaw, exclusive of 90 percent of rainfall on lake surface; median of yearly inflow, 12,100 acreft per year (16.7 cfs).

Remarks. Records of runoff represent all water reaching Lake Henshaw, exclusive of 

90 percent of rainfall on water surface of lake and supplemental water obtained by 

pumping ground water from area adjacent to lake, computed on basis of records of storage, release (draft), spill, leakage, evaporation, rainfall, and ground-water pumpage. 

Monthly evaporation from lake surface computed on basis of evaporation from a floating 

pan using a coefficient of 0.87, except during periods when winds swamp the floating 

pan. Evaporation for these periods is computed on basis of Colorado pan using coefficient of 0.80. Capacity and area ratings for lake are based on resurvey made in 

October 1951. Capacity of reservoir at spillway level (gage height, 107.00 ft), 

194,300 acre-ft. No dead storage. Since storage of water was begun, runoff as computed has been exclusive of 90 percent of rainfal.1 on water surface of lake. During 

the year the amount of rainfall excluded was 575 acre-ft. No diversion above Lake 

Henshaw. No flow over spillway since dam was completed. Water is released down San 

Luis Rey River for diversion downstream for irrigation, power, and domestic use.

Cooperation.--Records furnished by Vista Irrigation District.

Monthly runoff, water year October 1956 to September 1957

Month

December. .................

Calendar year 1956. .....

April .....................

May.. .....................

September. ................

Water year 1956-57 ......

Gage 

height 

(feet)t

Contents 

(acrefeet)

Lake Henshaw

29.11 

32.06 

31.35 

32.68

-

35.24 

36.40 

37.18 

36.60 

35.55 

35". 09 

33.85 

31.23 

28.98

-

1,140 

1,873 

1,662 

2,078

.-

3,155 

3,782 

4,250 

3,899 

3,314 

3,080 

2,519 

1,629 

1,115

-

Change 

In 

contents 

(acrefeet)

+733 

-211 

+416

-2,322

+ 1,077 

+627 

+468 

-351 

-585 

-234 

-561 

-890 

-514

25

Draft 

(acrefeet)

1O9 

873 

327

12,027

243 

225 

534 

1,511 

1,831 

1,614 

2,049 

2,556 

2,267

14,139

Net 

evaporation 

(acrefeet)

81 

113 

78

1,720

-221 

-6 

106 

154 

164 

310 

403 

215 

104

1,501

Spill 

plus 

leakage 

(acrefeet)

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Pumped 

ground 

water 

Included 

(acrefeet)

842 

775 

768

9,871

824 

744 

927 

,288 

,369 

,625 

,841 

,811 

,737

14,551

Runoff 

(acrefeet)

81 

0 

53

1,654

275 

102 

181 

26 

41 

65 

50 

70 

120

1,064

t On last day of month.

Note . Net evaporation, as used in computing this record, Is total evaporation less 90 percent of 

rainfall on water surface of reservoir. Supplemental water obtained by pumping ground water from 

are'a adjacent to lake Is subtracted from Inflow to obtain runoff. However, as thus computed the 

results may be In error. This arises primarily from the difficulty of computing runoff from basin 

as the residual of several larger quantities which are not susceptible of measurement with a precision necessary to produce & final answer within reasonable limits of accuracy.

San Luis Rey River below Pala diversion dam, near Pala , Calif.

Location. Lat 33°21'23", long 117°02 I 25", in NW^NWijNE^ sec. 36, T. 9 S. , R. 2 W. , on 

right bank downstream from Pala diversion dam, 1.8 miles east of Pala.

Drainage area . 326 sq mi.

Records available . May 1944 to June 1957 (irrigation seasons only), discontinued.

Gage . Water-stage recorder. Altitude of gage is 485 ft (from topographic map).

Remarks . No flow since Apr. 14, 1956. Discharge measurements or observations of no 

flow generally made once a month. Flow regulated by Lake Henshaw (see above) . Diversions above station mainly by Escondido Mutual Water Co. Bureau of Indian Affairs, 

Irrigation Service, diverts some water above station. Results of discharge measurements, in cubic feet per second, of San Luis Rey River above Pala diversion dam made 

from April to June 1957 are given herewith:

Apr. 1. .......... 0.36

24.. ......... .37

May 15. .......... .24

June 18....... .... .14
40 SAN LUIS KEY RIVER BASIN

San Luis Rey River at Monserate Narrows, near Pala, Calif.

Location. Lat 33°20'15", long 117°08'10", in NE^ sec. 6, T. 10 S., R. 2 W., on left bank 

4 miles southwest of Pala and 6 miles northeast of Bonsall.

Drainage area. 383 sq mi.

Records available.--December 1935 to March 1938 (fragmentary), April 1938 to November 

1941, October 1946 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 270 ft (from topographic map). Prior 

TTo October 1946, at same site at different datum. Dot: 22, 1946, to Nov. 30, 1954, 

at datum 1.0 ft higher.

Average discharge.--14 years (1938-41, 1946-57), 10.8 cfs (7,820 acre-ft per year); 

median of yearly mean discharges, 3.2 cfs (2,300 acre-ft per year).

Extremes. No flow during year.

1535-41, 1946-57; Maximum gage height, 8.7 ft Feb. 7, 1937, datum then in use (discharge not determined); no flow at times during 1948-57.

Remarks. No flow since June 23, 1956. Observations of no flow generally made once a 

month. Flow regulated by Lake Henshaw (see p. 39). Several diversions above station 

(see records for station "below Pala diversion dam, near Pala," preceding page). 

Figures for the calendar year 1956 are as follows: maximum daily discharge, 196 cfs; 

minimum daily, 0.0 cfs; mean, 1.59 cfs; runoff, 1,150 acre-ft.

San Luis Rey River near Bonsall, Calif.

Location.--Lat 33°15'13", long 117°14'48", in SW^NE^NE^ sec. 1, T. 11 S., R. 4 W., on 

left bank 0.7 mile downstream from bridge on State Highway 76 and 2.8 miles southwest of Bonsall.

Drainage area. 514 sq mi.

Records available. July 1916 to September 1918 (gage heights and discharge measurements 

only), October 1929 to September 1957.

Gage. Water-stage recorder. Datum of gage is 108.10 ft above mean sea level, datum of 

1929. July 1916 to September 1918 staff gages at site 0.8 mile upstream at different 

datums. October 1929 to Nov. 15, 1945, water-stage recorder at present site at datum. 

3.44 ft higher and Nov. 16-, 1945, to Sept. 16, 1946, at datum 1.44 ft higher.

Average discharge. 28 years, 24.7 cfs (17,880 acre-ft per year); median of yearly mean 

discharges, 9.1 cfs (6,600 acre-ft per year).

Extremes. Maximum discharge during year, 0.6 cfs Jan. 29 (gage height, 3.58 ft); no flow 

most of year.

1929-57: Maximum discharge, 18,100 cfs Mar. 3, 1938 (gage height, 12.60 ft, datum 

then in use), from rating curve extended above 2,400 cfs; no flow part of each year.

Remarks. No flow since Jan. 18, 1955, except for short period Jan. 29, 1957. Mean discharge for Jan. 29, 1957, 0.0 cfs. Observations of no flow generally made once a 

month. Flow regulated by Lake Henshaw (see p. 39). Several diversions above station 

(see records for station "below Pala diversion dam, near Pala," p. 39). NO flow for 

calendar year 1956.

Revisions (water years).--WSP 881: 1938.

San Luis Rey River at Oceanside, Calif.

Location.--Lat 33°12'48", long 117°22'33", in SW^SE£SW£ sec. 14, T. 11 S., R. 5 W.,-on 

right bank 0.7 mile upstream from U. S. Highway 101 bridge, 1.1 miles upstream from 

mouth, and 1.2 miles north of Oceanside.

Drainage area. 557 sq mi.

Records available. April 1912 to September 1914 (published as "near Oceanside"), January 1916, October 1929 to January 1942, October 1946 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 20 ft (from topographic map). April 

T912 to September 1914 staff gage at site three-quarters of a mile upstream at different datum. January 1916 staff gage a quarter of a mile downstream at different 

datum.

Average discharge. 25 years (1912-14, 1929-41, 1946-57), 21.2 cfs (15,350 acre-ft per 

year); median of yearly mean discharges, 1.4 cfs (1,000 acre-ft per year).

Extremes. No flow during year.

1912-14, 1916, 1929-42, 1946-57: Maximum discharge, 95,600 cfs Jan. 27, 1916; no 

flow for several months each year.

Remarks.--No flow since Nov. 30, 1952. Observation of no flow generally made once a 

month. Flow regulated by Lake Henshaw (see p. 39). Several diversions above station 

(see records for station "below Pala diversion dam, near Pala," p. 39).
SANTA MARGARITA RIVER BASIN 41

- Temecula Creek at Vail Dam, Calif.

Location. Lat 33°29'44", long 116°5S'33", In Pauba Grant, at Vail Dam 0.2 mile downstream 

from Arroyo Seco and 10 miles east of Temecula, Riverside County.

Drainage area. 319 sq mi.

Records available.--October 1948 to September 1957. January 1923 to October 1930 at site 

300 ft downstream and October 1930 to September 1948 at site 700 ft downstream published as "at Nigger Canyon, near Temecula"; records not equivalent owing to change in 

natural water loss resulting from creation of Vail Lake. October 1948 to September 

1951 published as "at Nigger Canyon, near Temecula"; records are for draft and spill 

only from Vail Lake. October 1951 to September 1955, published as "at Vail Dam, near 

Temecula."

Gage. Water-stage recorder. Datum of gage is 1,350.0 ft above mean sea level (levels by 

Bureau of Reclamation). Water-stage recorder at site 700 ft downstream measures 

release and spill. Prior to Oct. 16, 1930, at site 400 ft downstream at several different datums. Oct. 16, 1930, to September 1948, at site 700 ft downstream at different datum.

Average discharge. 25 years (1923-48), 10,580 acre-ft per year (14.6 cfs); 9 years 

(1948-57), 3,450 acre-ft per year (4.77 cfs).

Remarks. Records of runoff represent all water reaching Vail Lake, including rainfall 

on lake surface, computed on basis of records of storage, release (draft), spill, and 

evaporation. Monthly evaporation from lake surface, computed on basis of evaporation 

from Class A pan using coefficient of 0.80. Capacity and area ratings for lake are 

based on a survey made in 1947. Capacity of lake at spillway level (gage height, 

120.00 ft), 49,370 acre-ft. Dead storage, 2.4 acre-ft below lowest outlet at gage 

height 2.5 ft, included in these records. Water is released down Temecula Creek for 

diversion about 1 mile below dam as required.

Cooperation. Record of lake water-surface elevations furnished by Santa Margarita Ranch 

(U. S. Navy) and Pauba -Ranch.

Monthly runoff, water year October 1956 to September 1957

Month

Calendar year 1956 ....................

March ...................................

May................ .....................

June ....................................

September ...............................

Qage 

height 

(feet)t

Vail

-

23.68

Contents 

(acrefeet)

Lake

-

556

Change 

in

contents

feet)

-1,028

+85

-11

Draft 

(acrefeet)

O

1,665

0

3O6

O

0

O

736

Evaporation 

(acrefeet)

38

622

*11

*27

*42

*49

*53

56

48

439

Runoff 

(acrefeet)

_

78

1,259

116

112

170

45

32

37

925

* Estimated on basis of records for Lake Hodges and Santiago Reservoir, 

t At 12 p.m. on last day of month.
SANTA MARGARITA RIVER BASIN

Murrieta Creek at Temecula, Calif.

Location. Lat 33°28'47", long 117°08'35", in Temecula Grant, on right bank 0.4 mile 

(revised) upstream from mouth and 1.0 mile (revised) south of Temecula, Riverside 

County.

Drainage area. 220 sq mi.

Records available . October 1930 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 970 ft, revised (from topographic map). 

Prior to Jan. 6, 1931, staff gage and sharp-crested weir at site 0.4 mile downstream 

at different datum. Jan. 6, 1931, to Dec. 16, 1938, supplemental water-stage recorder 

and sharp-crested weir at site 0.4 mile downstream at different datum used to record 

low flows.

Average discharge. 27 years, 10.3 cfs (7,460 acre-ft per year); median of yearly mean 

discharges, 2.7 cfs (2,000 acre-ft per year).

Extremes. Maximum discharge during year, 438 cfs Mar. 1 (gage height, 2.99 ft); minimum 

daily, 0.1 cfs Aug. 17.

1930-57: Maximum discharge, 17,500 cfs Jan. 23, 1943 (gage height, 13.82 ft); minimum daily, 0.1 cfs for several days during 1952-53, and Aug. 17, 1957.

Remarks.--Records good. Discharge measurements generally made daily except Sundays.

Cooperation. Gage-height record and 304 discharge measurements furnished by Santa 

Margarita Ranch (U. S. Navy) and Pauba Ranch.

Revisions (water years). WSP 1345: 1952.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second) 

(Shifting-control method used Aug. 15-31)

O.O 

.1 

.2 

.3 

.4 

.5 

.6

0.1 

.2

1.6 

3.0

0.7 

.9 

1.2 

1.5 

1.8 

2.0

4.7

10

80

112

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

0.2 ~72~

.2

.2

.2

.2

.2

.4

.5

.6

.7

.7

.6

.8

75

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.4

.5

.7

13.0

0.42

26

Nov.

0.7

1.1

.9

.8

.7

.7

.6

79

.7

.9

.8

1.0

1.3

1.0

.8

.8

.8

1.0

1.0

1.6

1.1

1.0

.8

.8

.8

.7

.6

.6

.8

.9

26.2

0.87

52

Dec.

0.9

1.0

.8

1.1

1.2

1.7

T75

1.2

.8

.7

1.0

.9

.8

.9

.8

1.0

.9

.5

75

.6

.9

1.0

.8

.8

.6

.5

.5

.8

1.0

1.0

.8

27.5

0.89

55

Calendar year 1956: Max 55

Jan.

1.0

1.2

.8

.7 -TS1.0

2.9

3.3

1.4

2.4

1.4

1.0

22

5.1

2.0

1.4

1.0

.9

.8

.8

1.4

1.1

.9

.9

1.3

2.8

2.3

3.1

54~9~.3

2.8

131.8

4.25

261

Feb.

1.9

1.4

1.4

1.3

1.2

1.4

1.3

1.2

1.2

1.1

1.0

.9

.9

.8

Tff

.8

.8

.9

1.0

1.0

1.1

.9

3.6

3.1

1.4

1.2

1.0

6.3

_

40.9

1.46

81

Mar.

102 5.5

2.6

1.8

1.5

1.3

1.2

1.0

1.0

1.1

.9.'8

.8

.8

.8

1.2

1.4

1.1

1.0

.9

.8

.8

.7

.6

75

1.0

1.6

.8

.6

.6

.6

137.4

4.43

273

Apr.

0.6

.5

75

.5

.6

.6

.6

.7

.8

.8

1.1

1.0.

1.6

1.4

1.8

1.0

.9

1.1

1.0

2.0

2.2

T7?

1.0

.8

.7

.7

.9

.7

.5

.6

28.6

0.95

57

May

0.7

.6

76

.7

.8

.8

.7

1.1

1.2

1.2

2.2

1.7

1.8

.9

.8

1.6

1.1

1.5

1.8

1.0

1.7

1.7

1.0

1.0

.9

.8

.7

.9

.9

1.3

1.2

34.9

1.13

69

June

1.1

1.6

175

1.2

1..0

1.1

1.4.

1.0

.7

.9

.8

.6

.8

.6

.8

1.2

.6

.4

75

.6

.8

1.2

1.3

1.1

1.5

1.2

.7

.4

.6

.9

28.1

0.94

56

July

0.7

.4

a. 4

a. 3

a. 3

a. 3

a. 3

a. 3

a. 4

.4

.5

.5

.4

.3

.5

.6

.9

7?

.6

.3

.4

.5

.4

.3

_J2

.Z

.2

.3

.3

.3

.3

12.7

0.41

25

Aug.

0.3

.4

.7

.8

.6

.4

.4

.2

.3

.3

.2

.2

.2

.2

.2

.2

.1

7?

.2

.2

.2

.2

.2

.4

.4

.5

.4

.4

.4

.4

.3

10.1

0.33

20

Sept.

0.5

.4

.3

.2

72

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

.4

.5

.6

.7

.8

.6

.5

.5

.5

.4

.3

.3

.5

.3

10.9

0.36

22

Min 0.2 Mean 0.89 Ac-ft 647

Water year 1956-57: Max 102 Min 0.1 Mean 1.38 Ac-ft 997

Peak discharge (base. 55 cfs).--Jan. 13 (3:30 a.m.) 57 cfs (1.70 ft); Jan. 29 (10 a.m.) 137 cfs 

(2.21 ft); Mar. 1 (2 a.m.) 438 cfs (2-99 ft).

a No gage-height record; discharge interpolated or estimated on basis of 5 discharge measurements.
SANTA MARGARITA RIVER BASIN 43

Santa Margarita River near Temecula, Calif.

Location. Lat 33°S8'S6", long 117°08'30", in Temecula Grant, on left bank at upper end 

of Temecula Canyon, 0.1 mile downstream from Murrieta Creek and 1.4 miles (revised) 

south of Temecula, Riverside County.

Drainage area. 592 sq mi.

Records available. January 1923 to September 1957. Prior to October 1952, published as 

"Temecula Creek at Railroad Canyon, near Temecula ."

Gage. Water-stage recorder. Altitude of gage is 950 ft (from topographic map).

Average discharge. --25 years' (1923-48), 28.2 cfs (20,420 acre-ft per year), 9 years 

(1948-57), 10.8 cfs (7,820 acre-ft per year); median of yearly mean discharges 

(1923-48), 13 cfs (9,400 acre-ft per year).

Extremes.--Maximum discharge during year, 472 cfs Mar. 1 (gage height, 3.95 ft); minlmum daily, 2.0 cfs Aug. 23, Sept. 6-10.

1923-57: Maximum discharge, 25,000 cfs Feb. 16, 1927 (gage height, 14.6 ft), from 

rating curve extended above 10,000 cfs by logarithmic plotting; minimum, 0.4 cfs 

July 16, 1925.

Remarks. Records fair. Discharge measurements generally made daily except Sundays.

Pumping diversions above gage affect flow during'irrigation season. Flow partly regulated by Vail Lake beginning in November 1948 (see p. 41).

Cooperation. Gage-height record and 304 discharge measurements furnished by Santa 

Margarita Ranch (U. S. Navy) and Pauba Ranch.

Revisions (water years). WSP 981: 1927(M).

Discharge, In cubic feet" per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

U

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.5 277

2.7

2.8

2.7

2.8

2.8

2.9

3.2

3.2

3.4

3.4

3.4

3.5

375

3.3

3.2

3.2

3.1

3.1

2.9

2.9

3.2

3.3

3.2

3.2

3.1

3.1

3.1

3 z'.32 

95.7

3.09

190

Nov.

3.4

4.2

3.9

3.5

3.5

3.6

3.5

4.0

3.5

3.8

3.5

4.0

"475 4.6

3.7

3.6

3.5

3.6

3.8

4.2

3.7

3.4

3.3

3.3

3.3

3.3

3.2 3T5-

3.8

3 . 8

110.0

3.67

218

Dec.

3.7'

3.8

3.6

3.8

3.8

4.5

475

4.2

3.9

3.7

3.9

3.9

3.7

3.9

3.7

3.9

3.9

3.6

3.5

375

3.8

4.0

3.8

3.8

3.7

3.6

3.7

3.9

4.2

4.3

3.9

119.7

3.86

237

Jan.

4.2

4.7

3.8

3.5

375

3.8

6.7

7.8

4.6

6.1

5.0

4.5

43

10

5.9

4.9

4.9

4.6

4. -6

4.7

5.4

5.1

5.1

5

5.7

9.0

8.0

10

96 5U11

321.4

10.4

637

Feb.

9.2

8.2

8.0

7.9

7.6

7.1

7.2

7. -2

7.1

7.0

6.8

6.6

6.5

6.4

6.2

6\1

6.2

6.2

6.4

6.5

6.6

6.4

9.8

8.5

7.0

6.5

15~5.9

-

206.1

7.36

409

Mar.

115 ~I3-

8.9

7.9

7-.2

7.0

7.2

7.1

7.1

7.4

7.0

6.4

6.5

6.2

6.4

7.2

7.0

6.6

6.5

6.4

6.2

5.9

5.1

4.9

4.9

5.0

5.1

4.6

4.2

4.2

4_.o

308.1

9.94

611

Apr.

3.9

4.0

3.7

3.7

4.0

4.2

4.3

4.6

4.4

4.2

4.0

3.8

4.2

3.9

4.2

3.5 575

4.2

4.2

6.0

5.8

4.3

4.2

4.0

3.8

3.5

3.9

3.8

3.6

3.6

123.1

4,10

244

May.

3.7

3.5

3.5

3.7

3.7

3.8

3.8

4.0

3.8

4.0

5.0

T3

4.4

3.6

5.2

3.9

3.6

4.2

4.5

3.8

4.5

5.0

4.3

4.0

4.0

3.8

3.7

3.7

3.3

3 .3

3.8

121.9

3.93

242

June

3.8

4.2

37f

3.4

3.4

3.3

3.7

3.5

2.9

372

3.5

3'. 4

3.7

3.5

3.5

3.8

3.0

2.9

2.9

3.2

3.1

3.7

3.4

3.7

4.2

3.6

3.6

3.4

3.2

3.3

103.9

3.46

206

July

3.5

3.1

2.8

2.4

2.6

3.0

3.5

3.3

2.9

2.7

2.8

2.7

2.2

2.1 2"7J

2.4

2.5

2.8

2.7

2.8

3,6

375

2.7

2.7

2.4

2.3

2.7

2.7

2.5

2.7

3.4

85.8

2.77

170

Aug.

3.0

3.1

3.4

3.6

3T5

2.9

2.7

2.6

2.4

2.5

2.5

2.3

2.4

2.7

2.4

2.3

3.0

3.0

2.3

2.4

2.4

2.4

2.0

575

2.7

2.9

3.3

2.4

2.6

2.8

83.6

2.70

166

Sept.

2.6

2.5

2.3

2.3

2.1

2.0

575

2.0

2.0

2.0

2.1

2.1

2.3

2.3

2.1

2.5

2.3

2.7

2.6

2.7

3.0

27§

2.3

2.5

2.3

2.4

2.6

2.3

2.6

2.6

71.0

2.37

141

Calendar year 1956: Max 74 Mln 2.4 Mean 4.87 Ae-ft 3,540

Water year 1956-57: Max 115 Mln 2,o Mean 4.8O Ac-ft 3,470
44 SANTA MAROARITA RIVER BASIN

Santa Margarita River near Fallbrook, Calif.

Location.--Lat 33°25'54", long 117°15 I 44", in NE^SE^NE^ sec. 14, T. 9 S., R. 4 W., on 

right bank 180 ft upstream from De Luz Road, 1.3 miles northwest of Fallbrook, and 

1.9 miles downstream from Sandia Canyon.

Records available. November 1924 to September 1957. Records prior to October 1955, at 

site 1.7 miles upstream, equivalent except for extreme low-flows.

Gage. Water-stage recorder. Altitude of gage is 280 ft (from topographic map). Prior 

to Oct. 1, 1955, at site 1.7 miles upstream at different datum.

Extremes. Maximum discharge during year, 322 cfs Mar. 1 (gage height, 4.09 ft), from 

rat ing curve extended above 50 cfs on basis of measurement made at former site; no 

flow Oct. 1 to Nov. 26, Dec. 2, Dec. 28 to Jan. 5, June 4-9, June 18 to Sept. 30.

1924-57: Maximum discharge, 33,100 cfs Feb. 16, 1927 (gage height, 15.6 ft, site 

and datum then in use), by slope-area method; no flow at times during 1955-57.

Remarks. Records good except those above 50 cfs, which are fair. Discharge measurements or observations of no flow generally made twice a month. Flow partly regulated 

by Vail Lake (see p. 41) beginning in November 1948. Several small diversions above 

station for irrigation. The Fallbrook Public Utility District pumped 1,028 acre-ft 

of water from a well in the stream bed 2.1 miles upstream from the station during the 

water year.

Rating table, water year 1956-57 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 27-29, Jan. 29, 30)

Z.I

2.2

2.3

2.4 

Z.5

3.Z 

7.5

Z.6

Z.8 

3.1 

3.3

103

140

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

ZO

Zl

2Z

Z3

Z4

Z5

Z6

Z7

Z8

Z9

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0Q0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.5

71.1

0.8

0.03

1.6

Dec.

0.1

0

.1

.1

.1

.5

74

.2

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

3.6

0.1Z

7.1

Jan.

0

0

0

0

0

.1

.5

1.8

8.0

9.6

8.5

7.0

19

38

14

8.5

7.0

6.5

6.0

6.0

6.0

6.0

6.0

6.0

6.0

8.0

~9.6 9.1

51

47

1Z

307.2

9.91

609

Feb.

8.5

.5

.5

£ .5

.0

.0

.5

.5

.5

.0

.O

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

13

Tz

9.6

8.5

6.5 970-

" 220.1

7.86

437

Mar.

126 -35

16

14

11

11

10

9.6

9.6

9.6

9.6

9.1

9.1

7.5

8.0

8.5

9.1

8.0

7.5

7.0

6.5

5.Z

3.6

3.6

Z.9

Z.Z

1.9

1.6

1.1

.9

_J_

368.4

11.9

731

Apr.

0.7

.7

.5

.4

.4

.4

.4

.4

.4

.5

.4

.2

.2

.2

_a

.1

.2

.5

.4

.5

2.9

4.4 276"

1.6

.9

1.4

.7

.5

.5

.9

24.0

0.80

48

May

276" Z.9

.9

.7

.5

.5

.5

.5

.4

.4

.5

.5

.7

.5

.5

.4

.4

.2

.5

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

.2

.4

18.8

0.61

37

June

0.5

!l

0o0

0

0

0

.5

.4

.4

.4

.4

.2

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

3.3

0.11

6.5

July

0

0

0

Aug.

0

0

0

Sept.

0

0

.0

Calendar year 1956: Max 197 Min 0 Mean 2 .OZ Ac-ft 1,470

Water year 1956-57: Max 1Z6 Min 0 Mean Z.59 Ac-ft 1,880
SANTA MARGARITA RIVER BASIN 4J> 

De Luz Creek near Fallbrook, Calif.

Location. Lat 33 022'24", long 117"19'10", in SW^SE^- sec. 20, T. 9 S., R. 4 W., on left 

bank 0.9 mile upstream from mouth and 4.2 miles west of Pallbrook.

Drainage area.--47.9 sq mi.

Records- available. February 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage Is 150 ft {from topographic map).

Average discharge.--6 years, 4.51 cfs {3,270 acre-ft per year).

Extremes. Maximum and minimum discharges for the water years 1951-57 are contained in the 

following table:

Water 

year

1951t 

1952 

1953 

1954 

1955 

1956 

1957

Maximum

Date

Apr. 28, 1951 

Jan. 16, 1952 

Jan. 7, 1953 

Jan. 19, 1954 

Feb. 28, 1955 

Jan. 26, 1956 

Mar. 1, 1957

Discharge 

(cfs)

153 

2,580 

214 

1,800 

54 

782 

43

Gage height 

(feet)

6.98 

12.50 

8.19 

11.12 

7.87 

9.55 

7.78

Minimum

Date

| 

? 

*

Discharge 

{cfs)

0 

0 

0 

0 

0 

0 

0

t Period February to September. 

t Several months of each year.

1951-57: Maximum discharge, 2,580 cfs Jan. 16, 1952 {gage height, 12.50 ft), from 

rating curve extended above 65 cfs on basis of slope-area determination of peak flow; 

no flow during several months of each year.

Remarks. Records fair except those for periods of no gage-height record, which are poor. 

Cooperation. Four discharge measurements furnished by the U. S. Navy.

Discharge, in cubic feet per second, February to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

_

_

-

Nov.

_

_

-

Dec.

_

_

-

Jan.

_

_

-

Feb.

(*)

(*)

{ )

(*)

-

0

0

0

Mar.

0.4

S.

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.4

0.01

0.8

Apr.

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

a.l

a4

 a.l

0

7.4

T^

0

13.9

0.46

28

May

(»)

( >

{*)

0

0

0

June

(*)

{ )

0

0

0

July

(»)

0

0

0

Aug.

( )

0

0

0

Sept.

(*)

0

0

0

0

Calendar year : Max Min Mean Ac-ft

Water year : Max Mln Mean Ac-ft

Peak discharge (base, 200 cfs). Ho peak above base.

 Observation of no flow made on this day.

a No gage-height record; discharge estimated on basis of indicated range in stage, weather records, 

and records for nearby stations.
46 SANTA MARGARITA RIVER BASIN

De Luz Creek near Fallbrook, Calif.--Continued

Discharge, In cubic feet per second, water year October 1951 to September 1952

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(»)

0

0

o

Nov.

(*)

(*)

0

0

o

Dec.

§

*0

0

0

0

o

o

0

0

0

0

o

0

0

0

0

0

0

0

o

o

0

0

0

0

o

0

.2

*22 

«IZJ

32.2

1.O4

64

Jan.

*

*0

0

o

0

0

*o

0

o

0

o

*255

20

*9.5

*686 ~3"9"

257

100

76

*64

47

34

27

72

59

40

*35

30

*23

20

1,893.5

61.1

3,760

Feb.

if15

14

13

12

 11

9.2

8.6

9.2

8.6

6.6

5.3

*5.7

5.7

5.3

4.5

4.2

3.8

4.2

*4.2

3.8

4.5

4.2

3.4

3.2

372

3.2

*5.8

216.4

7.46

429

Mar.

16 

7.6

4.9

5.3

5.3

4.2

*285

116

76

86

148

107

124

*102

274

366

2(56

169

148

115

86

64

58

55

45

39

*35

30

26

24

21

2,848.3

91.9

5,650

Apr.

20 

18

*17

15

15

15

16

17

16

177

*82

30

26

23

21

21

20

*20

23

21

20

18

18

*16

14

12

9.8

1^

11

11

753.8

25.1

1,500

May

*^.8

7.7

5.8

5.8

5.8

5.0

5.8

*6.7

6.7

5.8

5.0

3.6

4.3

2.9

2.2

2.2

1.7

2.2

2.2

*2.2

2.2

2.2

1.7

1.7

1.7

1.7

1.3

T73

1.3

1.3

120.8

3.90

240

June

H

1.3

1.0

1.0

1.0

1.0

1.0

1.0

1.0

*1.0

1.0

.7

.7

.7

.5

.5

.5

.5

.5

.3

.3

.3

*.3

_._2

.2

.5

.5

.3

.3

20.7

0.69

41

July

0,3

.3

.3

.3

.2

.2

.2

*.2

.2

.2

.1

.1

.2

.2

.2

.2

.2

.2

.1

.1

.1

*.l

.1

2

0

0

o

o

0

o

4.6

0.15

9.1

Aug.

(*)

(*)

0

0

o

Sept.

(*)

0

0

0

Calendar year 1951: Max - Mln - Mean - Ac-ft -

Water year 1951-52: Max 686 Mln 0 Mean 16.1 Ac-ft 11,690

Peak discharge (base, 2OO cfs).--Jan. 13 (4 a.m.) 72O cfs (9.10 ft); Jan. 16 (12 ra.) 2 58O cfs 

(12.50 ft); Mar. 7 (2 p.m.) 1,33O cfs (1O.16 ft); Mar. 10 (ll p.m.) 211 efs (7.58 ft); Apr. 1O 

(5 p.m.) 555 cfs (8.95 ft)._______

* Discharge measurement or observation of no flow made on this day. Hote. Doubtful or no 

gage-height record May 23 to June 10, June 12-23, June 3O to July 8; discharge estimated on basis of 

4 discharge measurements, partial gage-height record, weather records, hydrographers' notes, and 

records for nearby stations.

Discharge, In cubic feet per second, water year October 1952 to September 1953

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

(*)

0

0

0

Nov.

0

5

o

0

0

0

0

0

0

0

0

o

0

0

1.9

.8

O

0

0

*0

o

0

0

0

0

0

o

0

0

o

2.7

0.09

5.4

Dec.

0

6.2

O

*0

0

0

0

0

0

0

0

o

0

0

o

*o

0

0

0

9.8

1.5

0

0

o

0

0

0

0

0

o

.9

18.4

0.59

36

Jan.

0

0

0

O

0

O

156

TBT

72

45

32

19

23

24

21

16

16

14

11

7.7

*5.O

5.0

aS

a4

a4

a4

a3

a3

a3

a3

a2

648.7

20.9

1,290

Feb.

a2

a2

a2

*1.3

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

*1.0

1.0

1.3

1.3

1.3

1.3

2.2

T77

1.3

1.3

1.3

1.3

-

35.6

1.27

71

Mar.

2.9

5.8 *TT5

 1.8

1.8

1.5

1.5

1.2

1.2

1.0

.8

.8

.8

.6

76

.6

.6

* .6

.6

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

36.1

1.16

72

Apr.

*0.8 "TB"

.8

.8

.8

.6

.6

.5

.5

.4

.2

.2

.2

*.2

.2

.2

.2

.1

7T

.1

.1

.1

.1

.1

.1

.2

.6

*.5

.4

.2

10.7

0.36

21

May

0.2 ~72

.2

.1

7T

.1

.1

.1

.1

.1

.1 *.l

.1

.2

.2

.2

.1

.1

.1

.2

.1

.1

.1

.1

.1

*.l

.1

.2

.1

.1

.1

3.9

0.13

7.7

June

0.1

IT

.1

.1

.1

.1

.1

.1 *o

S

0

0

0

0

0

0

0

o

o

0

0

0

*o

0

0

o

0

0

0

0

0.8

0.03

1.6

July

(*)

(*)

0

0

0

Aug.

(*)

o

o

0

Sept.

(*)

(*)

(*)

O

0

0

Calendar year 1952: Max 686 Mln 0 Mean 16.1 Ac-ft 11,670

Water year 1952-53: Max 156 Mln 0 Mean 2.O7 Ac-ft 1,5OO

Peak discharge (base, 2OO cfs). --Jan. 7 (10 p.m.) 214 cfs (8.19 ft).

* Discharge measurement or observation of no flow made on this day. 

ord; discharge estimated on basis of 2 discharge measurements, weather 

nearby stations.

a No gage-height rec 

cords, and records for
SANTA MARGARITA RIVER BASIN 

De Luz Creek near Fallbrook, Calif. Continued

Discharge, In cubic feet per second, water year October 1953 to September 1954

47

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

Z7

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

(*)

0

0

0

Nov.

(*)

(»)

0

0

0

Dec.

(*)

(*)

0

0

0

Jan.

00"

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

o

0

*177

45

a. 6

a. 4

a. 2

a.l

263

45

a!5

alO

a7

a5

a4

572.3

18.5

1,140

Feb.

a3

*1.9

1.3

1.0

.8

.8

.6

.6

.4

.4

.4

185 .2

323 ~TT

52

*36

26

20

17

15

13

10

9.8

*8.4

7.8

7.2

5.5

-

824.1

29.4

1,630

Mar.

5.5

*5.5

a5

a4.5

5.0

5.0

a4

a3.6

a3.2

a2.8

a2.6

aZ.4

a2.2

a2.2

a2.0

*a2.4

5.5

4.0

3.6

11

31

71

*82

62

72

50

40

33

30

113

*5S

716.0

23.1

1,420

Apr.

34

3T3

26

23

»21

20

19

17

16

13

12

12

*11

9.8

8.4

9.1

8.4

8.4

7.7

5.8

5.2

4.7

5.2

6.4

5.2

4.2

*3.8

I7T

4.2

4.2

359.4

12.0

713

May

3.4 370-

1.8

1.3

1.6

1.6

2.0

2.0

1.6

1.3

»1.3

1.8

1.8

1.6

1.3

1.3

1.3

1.1

1.1

1.0

1.0

.8

.8

.8

*.7

.4

.4

.4

.4

.3

.3

39.5

1.27

78

June

0.3

.3

.3

.3

.3

.4

73

*.3

.3

.3

.3

.3

.3

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

7T *.i '.1

7.2

0.24

14

July

~rr 0.1

.1.1

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0.4

0.01

0.8

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Calendar year 1953: Max 156 Mln 0 Mean 2.02 Ac-ft 1,460

Water year 1953-54! Max 323 Mln 0 Mean 6.90 Ac-ft 5,000

Peak discharge (base, 200 cfs).~Jan. 19 (7 p.m.) 1,800 cfs (11.12 ft); Jan. 25 (7:30 a.m.) 630 cfs 

(9.25 ft); Feb. 13 (11 p.m.) 1,520- cfs (10.44 ft); Mar. 30 (5 a.m.) 218 cfs (8.42 ft)._________

* Discharge measurement or observation of no flow made on this day. a No gage-height record; discharge estimated on basis of 3 discharge measurements, weather records, and unpublished records for San Mateo Creek near San Clemente and Crlstianitos Creek near San Clemente.

Discharge, In cubic feet per second, water year October 1954 to September 1955

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

(*)

(*)

0

0

0

Dec.

(*)

0

0

0

Calendar year 1954: Max 323

Jan.

0

0

0

Feb.

00"

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4.9

15

-

19.9

0.71

39

Mar.

5.2

37*

3.0

3.0

3.0

2.3

2.3

2.0

1.8

1.8

2.3

1.8

1.6

1.3

1.3

1.1

1.1

1.1

1.1

1.0

.8

.8

*.8

.8

.8

.6

.6

.6

.5

75

.5

48.8

1.57

97

Apr.

~7l 0,4

.4

.4

.4

.4

*.3

.4

.3

.4

.3

.2

7Z

.2

.3

.3

.3

.3

.2

.2

.2

.4

a. 3

a. 2

*.2

.2

a. 2

a. 2

a. 2

a. 2

8.6

0.29

17

May

aO.3

aT?

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

».l

.1

.1

.1

a.l

a.l

a.l

a.l

a.l

a.l

a.l

Q- 0

.1

0

0

0

0

0

0

0

2.5

0.08

5.0

June

(*)

0

0

0

July

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Mln o Mean 6.90 Ac-ft 5.000

Water year 1954-55: Max 15 Mln o Mean 0.22 Ac-ft "153

Peak discharge (base, 200 cfs). No peak above base.

* Discharge measurement or observation of no flow made on this day. a Ho gage-height record; discharge estimated on basis of 2 discharge measupements, weather records, and records for 

nearby stations.
48 SANTA MARGARITA RIVER BASIN

De Luz Creek near Fallbrook, Calif.--Continued

Discharge, In cubic feet per second, water year October 1955 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

(*)

0

0

0

Dec.

0

0

0

Jan.

00"

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

aO

aO

aO

aO

a.l

178

309

#22

11

9.1

*5.2

534.4

17.2

1,060

Feb.

3.8 370-

3.0

2.7

2.0

1.6

1.3

1.3

.8

.8

.8

.8

.8

*.7

.8

.5

.3

74

.4

.4

.5

.5

.6

.6

.6

.8

.8

.8

.8

32.2

1.11

64

Calendar year 1955: Max 15 Mln 0

Mar.

 1.0

\e

.8

.8

.8

a. 8

a. 8

a. 8

a. 6

a. 6

a. 6

*.6

.6

.6

.6

.6

.6

.6

.6

.5

.4

.4

.4

.4

.5

.5

* .5

is

.5

.6

18.8

0.61

37

Apr.

0.8

.8

.6

.6

.6

.8

1.0

1.0

1.0

1.0

.8

1.0

1.4TS"

.8

.6

.8

*.6

.5

.5

.4

.3

.2

.1

7T

a

a

a

.2

*.2

17.8

0.59

35

May

0.1

a

a

a

a

.2

.3

7?

.2

.2

.2.2-

.2

*.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

5.8

0.19

12

June

0.2

 TJT

.2

.2

*.2

a

a

00"

0

0

0

0

0

0

o

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

1.2

0.04

2.4

July

(*)

0

0

0

Aug.

(*)

(*)

0

0

0

Sept.

0

0

0

Mean 0.22 Ac-ft 158

Water year 1955-56: Max 309 Mln 0 Mean 1.67 Ac-ft 1,210

Peak discharge (base, 200 cfs). Jan. 26 (9 p.m.) 782 cfs (9.55 ft).

* Discharge measurement made on this day. 

basis of records for nearby stations.

a No gage-height record; discharge estimated on 

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(»)

0

0

0

Nov.

(*)

0

0

0

Dec.

0

0

0

Calendar year 1956: Max 309

Jan.

00"

0

0

0

0

*0

0

0

0

0

0

*.6

0

0

0

0

0

0

0

*0

0

0

0

0

.4

0

*0

*3.2

*T7T

.1

5.4

0.17

11

Feb.

00"

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

3.1 ^

*.2

0

0

1.9

5.4

0.19

11

Mar.

18*T.O

.4

.1

0

0

0

0

.1 *.l

0

0

0

0

0

.4

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

20.1

0.65

40

Apr.

00"

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

1.1

*.6

0

0

0

0

0

0

0

0

*0

1.7

0.06

3.4

May

(*)

0

0

0

June

(*)

0

0

0

July

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Mln 0 Mean 1.67 Ac-ft 1,210

Water year 1956-57: Max 18 Mln 0 Mean 0.09 Ac-ft 65

Peak discharge (base, 200 cfs). No peak above base.

* Discharge measurement made on this day.
SANTA MARGARITA RIVER BASIN 49

O'Neill ditch near Ysidora, Calif.

Location (revised). Lat 33°20'04", long 117°19'40", in SE^NW^SW^- sec. 5, T. 10 S.,

R. 4 W,., on right bank half a mile upstream from point of discharge into O'Neill Lake 

and 5.5 miles northeast of Ysidora.

Records available. October 1930 to September 1957.

Gage. --Water-stage recorder and 3-ft Parshall flume. Altitude of gage is 105 ft (revised), 

From topographic map. Prior to October 1935, for periods of low flow, at site half 

a mile downstream at different datum. October 1935 to Nov. 21, 1955, at present site 

at different datum.

Average discharge.--27 years, 2.95 cfs (2,140 acre-ft per year).

Extremes. 1930-57: Maximum daily discharge, 35 cfs May 24, 1937; no flow during parts 

of each year.

Remarks. Records good. Discharge measurements or observations of no flow generally made 

daily, except Sundays. Ditch diverts water from left side of Santa Margarita River 

about 6 miles upstream from station on Santa Margarita River at Ysidora and discharges 

into O'Neill Lake. O'Neill Lake is used by the U. S. Navy for amphibious training.

Cooperation. Gage-height record and 40 discharge measurements furnished by Santa Margarita Ranch (U. S. Navy) and Pauba Ranch, and 10 discharge measurements furnished by 

U. S. Marine Corps.

Discharge, In cubic feet per second, 1957

Day

1 

2 

3 

4 

5 

6 

7 

8

Tota 

Mean 

Runo

Jan.

O 

0 

0 

O 

0 

0 

0 

0

Feb.

16 

14 

11 

5.8 

6.6 

10 

7.3 

6.9

Mar.

8.5 

11 

4.4 

.5 

5.4 

10 

9.5 

8.8

Day

9 

10 

11 

12 

13 

14 

15 

16

1

Jan.

0 

0 

O

0

o 

o

0

o

Feb.

6.4 

6.3 

6.0 

5.7 

5.3 

5.4 

5.1

572

Mar.

3.3 

.5 

.5 

.2 

.2 

.2 

.1 

.1

Day

17 

18 

19 

20 

21 

22 

23 

24

Jan.

O 

0 

0 

0 

0 

O

o

0

Feb.

5.2 

5.4 

5.2 

5.1 

5.2 

5.1 

5.7 

6.4

Mar.

0.1 

.1 

.1 

.1

0 

0 

0 

0

Day

25 

26 

27 

28 

29 

30 

31

f f In acre-feet ...........................................................

Jan.

0 

0 

0 

O 

13 

20 

18

51 

1.65 

101

Feb.

9.7 

13 

9.1 

7.5

205.6 

7.34 

408

Mar.

0 

0 

0 

O 

0 

0 

0

63.6 

2.05 

126

Calendar year 1956: Max 14 Min O Mean O.53 Ac-ft 385 

Water year 1956-57: Max 2O Mln O Mean 0.88 Ac-ft 635

Santa Margarita River at Ysidora, Calif.

Location. Lat 33°14'38" , long 117°22'56", in NE^SE^SE^- sec. 3, T. 11 S., R. 5 E. , on 

right bank 1 mile downstream from Ysidora and about 2.5 miles upstream from mouth.

Drainage area. 740 sq mi.

Records available. February 1923 to September 1929, October 1930 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 10 ft (from topographic map). Prior to 

Feb. 16, 1927, at about same site at different datum (destroyed by flood). Feb. 16, 

1927, to Feb. 1, 1931, no gage in operation; records based on discharge measurements. 

Feb. 2, 1931, to Nov. 27, 1935, at same site at datum 1.00 ft higher.

Average discharge. 9 years (1948-57), 8.71 cfs (6,310 acre-ft per year).

Extremes. No flow during year.

1323-29, 1930-57: Maximum discharge, 33,600 cfs Feb. 16, 1927, on basis of slopearea determination of peak flow; no flow during all or part of most years.

Remarks. No flow since May 13, 1954. Observations of no flow generally made daily

except Sundays. Diversions above station for irrigation on Santa Margarita Ranch and 

Pauba Ranch. (See above for records of O'Neill ditch near Ysidora.) Plow partly 

regulated by Vail Lake (see p. 41) beginning in November 1948. "Average discharge" 

represents flow to ocean during period of record, regardless of upstream development.

Cooperation.--Cage-height record and almost daily observation of no flow furnished by 

Santa Margarita Ranch (U. S. Navy) and Pauba Ranch.
 50

SAN JUAN CREEK BASIN

San Juan Creek near San Juan Capistrano, Calif.

Location, Lat 33 0 31'08", long 117°37'27", in NE-J-NE&SE-J- sec. 32, T. 7 S., R. 7 W. , on 

right pier of bridge on State Highway 74, 2.5 miles northeast of San Juan Capistrano.

Drainage area. 110 sq mi.

Records available. October 1928 to September 1957. Combined records of creek and diversion October 1954 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 150 ft (from topographic map). Prior 

to Feb. 28, 1934, at site 2| miles downstream at different datum. Feb. 28, 1934, to 

Dec. 10, 1938, at present site at different datum. Dec. 11, 1938, to Dec. 17, 1941, 

at present site at datum 2.00 ft higher.

Average discharge. 29 years, 12.6 cfs (9,120 acre-ft per year); median of yearly mean 

discharges ,3.0 cfs (2,200 acre-ft per year).

Extremes. Maximum discharge during year, 14 cfs Jan. 13 (gage height, 2.31 ft); minimum daily, 0.1 cfs July 9-13, Aug. 4.

1929-57: Maximum discharge, 13,000 cfs Mar. 2, 1938, by slope-area measurement, 

determined by Corps of Engineers; no flow at times most years.

Remarks.--Records good. Discharge measurements generally made weekly. See following 

page for records of combined discharge of creek and Capistrano Water Co.'s canal, 

which diverts 500 ft upstream from station.

Cooperation. Fifty-two discharge measurements furnished by Orange County Flood Control 

District.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.8

.9

.9

1.0

1.1

1.1

1.0

1.0 

1.1

1.1

1.2

1.2

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.1

1.0

1.0

1.2

1.0

1.0

1.0

1.2

1.3

1.3

1.4

1.3

34.3

1.11

68

Nov.

1.4

1.6

1.6

1.6

1.7

2.0

2.0

H.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

25.7

0.86

51

Dec.

1.4

2.5

1.3

.5

.5

.9

1.8

1.7 

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.3

1.3

1.4

1.4

1.0

.8

.6

.6

.5

.5

.5

.5

.5

.5

37.1

1.20

74

Jan.

 

0.6

.6

.6

.7

.6

2.9

3.9

3.1

4.8

3.6

3.6

8.6

4.2

3.2

2.9

2.7

2.7

2.9

3.2

3.9

2.9

2.7

2.5

2.3

3.9

3.2

3.2

5'.1 6.2

3.9

95.8

3.09

190

Feb.

3.

3.

3.

3.

3.

3.

3.

3. 

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

7.

4.

3.

3.

3.

3.9

-

99.7

3.56

198

Mar.

5.1

JTe

3.2

2.9

2.0

2.2

2.2

2.2 

2.7

2.9

2.5

2.3

2.5

2.5

2.3

3.2

2.3

2.2

2.3

2.2

3.2

3.4

3.4

3.2

2.9

2.5

1.8

2.0

2.0

2.2

1^6

81.5

2.63

162

Apr.

1.1

1.0

1 .0

.9

1.0

1.0

1.0

.7 

.7

.9

.9

.9

.8

.7

.7

.5

.6

1.0

.6

1.3

1.3

1.0

.9

.7

.6

.6

.6

.5

.5

.5

24.6

0.82

49

May

0.9

1.8

1.8

.9

^4

.4'.4

.4 

.4

.5

1.3

.6

.6

.6

.6

.6

.6

.5

.9

.5

.7

.5

.5

.6

.6

.6

.6

.6

.6

.5

.5

21.0

0.68

42

June

0.5

.5

.5

.6

.6

.7

.7

.7 

.7

.7

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

16.2

0.54

32

July

~0.5

.5

.5

.5

.4

.3

.2

.1

TT

.1

.1

.1

.2

.2

.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

.3

.3

.5

.5

.4

.2

9.0

0.29

18

Aug.

0.2

.2

.2

10.9

0.35

22

Sept.

0.4

.4

.4

.4

.4

.4

.4

.4 

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.5

.5

.5

.5

14.0

0.47

28

Calendar year 1956: Max 1,420 Mln 0.2 Mean 6.82 Ac-ft 4,950

Water year 1956-57: Max 8.6 Mln 0.1 Mean 1.29 Ac-ft 934

Peak discharge (base, 20 cfs). No peak above base
SAN JUAN CREEK BASIN SI

San Juan Creek near San Juan Capistrano, Calif. Continued

Combined discharge, In cubic feet per second, of San Juan Creek and Caplatrano Water Co,'a canal 

near San Juan Caplatrano, Calif., water year October 1956 to September 19§7

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.7

i!s

1.9 

2.0

2.0 

1.9

1.9

2.0

2.0

2.1

2.1

2.0

2.0

2.0

2.1

2.1

2.1

2.0

1.9

1.8

1.8

2.0

1.8

1.8

1.8

2.0

2.1

2.1

ITT

61.0

1.97

121

Nov.

2.2

274

2.4

2.4 

2.5

2.8 

2.8

sa

2.6

2.4

2.7

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.7

2.6

2.6

2.7

2.9

2.9

2.8

2.8

2.9

2.8

2.7

2*8

79.7

2.66

158

Dec.

2.8

2.9

3.2

3.2 

3.3

3*

3.2

3.1

3.1

3.2

3.3

3.3

3.3

3.2

3.1

3.1

2.9

2.9

3.0

3.0

3.3

3.3

3.2

3.2

3.1

3.1

3.2

3.2

3.2

3.2

98.0

3.16

194

Jan.

3.3

3.4

3.4

3.5 

3.9

3.6 

4.3

4.6

3.8

5.3

4.0

4.0

9 .4

5.0

3.9

3.5

3.3

3.3

3.5

3.8

4.5

3.5

3.3

3.1

2.9

4.6

3.8

3.8

7.0

5.7

4.4

129.4

4.17

257

Feb..

3.9

3.9

3.9

3.9 

3.. 9

3.8 

3.8

3.8

3.8

3.9

3.9

3.8

3.8

3.8

3.8

3.9

3.9

3.9

3.7

3.7

3.7

111

1*8

4.8

4.1

3.9

3.9

4.4

-

113.0

4.04

224

Mar.

5.7

4.2

3.7

3.4 

3.2

3.5 

3.4

3.4

4.0

4.3

3.7

3.4

3.6

3.5

3.4

4.8

3.7

3.6

3.6

3.5

3.7

3.5

3.5

3.4

3.3

3.0

2.6

37T

3.1

3.2

3.1

111.3

3.59

221

Apr.

3.2

3.1

3.1

2.9 

3.0

3.0 

3.0

2.7

2.7

2.9

2.9

2.9

2.8

2.7

2.7

2.6

2.6

3.0

2.6

5.4

3.4

3.0

2.9

2*. 7

2.6

2.5

2.5

2i4

84.4

2.81

167

May

2.4

2.5

2.5

2.6 

2.5

2.5 

2.5

2.5

2.5

2.6

3.8

2.9

2.8

2.8

2.7

2.6

2.4

2.4

3.0

2.4

2.8

2.5

2.4

2.5

2.6

2.5

2.4

2.1

2.1

2.0

1.9

78.7

2.54

156

June

1.9

1.8

1.7

1,7 

1.7

1.8 

1.8

2.0

2,1

2 .3

1.9

2.2

1.9

1.8

1.6

1.5

1.3

1.3

1.2

1.3

1.3

1.4

1.4

1.3

1.4

1.3

1.3

1.3

1.4

1.3

48.2

1.61

96

July

1..2

T72 1.1

1.0 1.1

1.2 

1.1

.9

.8

.8

.8

.8

.7

.8

.8

.9

.9

.9

.9

.8

.7

.8

;a

.8

1.0

1,0

.9

1.1

1.1

 9

jJi

28.4

0.92

56

Aug.

0,6

.6.

.6

if

.6 

.6

.7

.7

.9

.9

.9

.9

.9

.9

.8

.8

.9

~T9~ 1.0

.9

.8

.8

.8

.8

.8

.8

.8

.8

.9

.9

24.4

0.79

48

Sept.

0.9

 .9

.9

.8

.8 

.8

.8

.8

.8

.8

.8

.9

.9

.9

1.0

1 ,0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9

.8

.8

.8

 8

26.3

0.88

52

Calendar year 1956: Max 1,420 Mln 1.4 Mean 8.06 -Ac-ft 5,850

Water year 1956-57: Max 9.4 Mln 0.5 Mean 2.42 Ac-ft 1,750

5105Z9 O -59 -5
52 SAN JUAN CREEK BASIN

Arroyo Trabuco near San Juan Capistrano, Calif, 

(formerly published as Trabuco Creek)

Location. Lat 33°31'36", long 117°40'08", in NE^NE^NW^ sec. 36, T. 7 S-, R. 8 W., on

downstream side of right pier of bridge on U. S Highway 101, 1.8 miles (revised)

north of San Juan Capistrano. 

Drainage area. 36.5 sq mi. 

Records available. October 1930 to September 1957. Prior to October 1956, published as

Trabuco Creek near San Juan Capistrano.

Gage.--Water-stage recorder. Altitude of gage is 180 ft (from topographic map). 

Average discharge. 27 years, 4.98 cfs (3,610 acre-ft per year); median of yearly mean

discharges, (3.7 cfs (510 acre-ft per year). 

Extremes. Maximum discharge during year, 3.1 cfs Jan. 13 (gage height, 1.95 ft); no

flow for many months.

1930-57: Maximum discharge, 9,240 cfs Feb. 6, 1937; no flow for part of each

year. 

Cooperation. Records furnished by Orange County Flood Control District.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

.1

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

Nov.

0

0

o

0

0

.1

.3

.2

0

0

0

0

0

.1.1

0

0

.1

0

0

.1

0

0

0

0

0

0

0

0

0

1.0

0.03

2.0

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.3

.2

.4

1.0

.7

.4

.6

.2

0

.4

.5

.1

0

0

.4

.7

.7

6.7

0.22

13

Calendar year 1956: Max 417

Jan.

0.7

.3

0

0

0

.3

.6

.5

.5

.6

.5

.5

1.0

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

.6

.6

.7

.8

.7

.7

16.8

0.54

33

Feb.

0.7

.7

.7

.7

.7

.7

.7

.8

.8

.8

.9

.7

.7

.7

.1

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

-

19.1

0.68

38

Mar.

0.6

.7

.7

.7

.7

.7

.7

.7

.7

.7

.5

.6

.7

.7

.7

.6

.6

.5

.6

.6

.5

.2

0

0

0

0

0

0

0

0

0

13.7

0.44

27

Apr.

0

0

0

May

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

June

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

July

0.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

;2

TT

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0.6

0.02

1.2

Aug.

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o .1

.1

.1

0

0

0

0

0.3

0.01

0.6

Sept.

~.l 0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

.1

0

0

0

0

0

0

.1

0

0

0

0.6

0.02

1.2

Min 0 Mean 1.90 Ac-ft 1,380

Water year 1956-57: Max 1.0 Min 0 Mean 0.16 Ac-ft 117

ALISO CREEK BASIN

Aliso Creek at El Toro, Calif.

Location (revised).--Lat 33°37'34", long 117°41'03", in Canada de los Alisos Grant, on 

left abutment of Second Street Bridge at El Toro, Orange County.

Drainage area. 8.5 sq mi, approximately.

Records available.--October 1930 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 440 ft (from topographic map).

Average discharge. 27 years, 0.73 cfs (528 acre-ft per year); median of yearly mean discharges, 0.3 cfs (220 acre-ft per year).

Extremes.--Maximum discharge during year, 2.1 cfs Jan. 13 (gage height, 5.65 ft); no 

flow for most of year.

1930-57: Maximum discharge, 1,950 cfs Feb. 6, 1937; no flow most of each year.

Cooperation. Records furnished by Orange County Flood Control District.

Revisions (water years).--WSP 961: 1941(M).

Discharge, in cubic feet per second, water year October 1956 to September 1957 

Jan. 13............... 0.2

Month

January 1957 .............. 

Calendar year 1956...... 

Water year 1956-57......

Cfs-days

0.2

Maximum

0.2 

145 

.2

Minimum

0 

0 

0

Mean

0.006 

.59 

.0005

Runoff in 

acre-feet

0.4 

427

.4

Note.--Plow occurred only on day listed above.
PETERS CANYON WASH BASIN 53

San Diego Creek near Irvine, Calif.

Location. Lat 33°40'20", long 117"47"10", in San Joaquin Grant, on left bank 200 ft 

downstream from Jeffrey Road Bridge and 1.5 miles west of Irvine, Orange County.

Records available. October 1949 to September 1957.

Gage. Water-stage recorder and concrete control. Datum of gage is 102.86 ft above mean 

sea level (levels by Orange County Flood Control District).

Average discharge. 8 years, 1.53 cfs (1,110 acre-ft per year).

Extremes. Maximum discharge during year, 370 cfs Feb. 28 (gage height, 2.70 ft), from 

rating curve extended above 180 cfs on basis of slope-area determination of peak flow 

at gage height 7.70 ft; no flow for most of year.

1949-57: Maximum discharge, 4,040 cfs Jan. 18, 1952 (gage height, 7.70 ft), from 

rating curve extended above 1,000 cfs on basis of slope-area determination of peak 

flow; no flow for most of each year.

Remarks. Records good.

Cooperation. Six discharge measurements furnished by Orange County Flood Control District.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, in cubic feet per second)

1.0

1.1

1.2 .6

1.3

1.4

1.5

2.4

5.9

12

1.6

1.7

1.8 52

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

1?

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

(*)

(*)

0

0

0

Dec.

(*)

(*)

0

0

0

Calendar year 1956: Max 297

Jan.

00"

0

0

 4.5

0

11

*.l

0

 1.5

0

0

*39~5

0

0

0

0

0

17

»0

0

0

0

0

6.6

.1

1.1

 7.8

*o

0

88.7

2.86

176

Feb.

0

13

0

0

0

0

0

0

0

0

0

»o

0

0

0

0

0

0

0

0

0

0

*20

0

0

0

0

22

42

1.50

83

Min o

Mar.

1.6

0

<5

0

0

0

0

0

0

0

0

0

0

«0

0

*4.3 0~~

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5.9

0.19

12

Apr.

*0

<5

0

0

0

0

0

0s

0

0

0

0

0

0

*o

0

0

0

0

6.0

~519

0

0

0

0

0

0

»0

0

25.0

0.83

50

May

0

5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*.l

0

0

0

0

0

0

0

0

0 

0

0.1

0.003

0.2

June

(*)

0

0

0

July

(*)

(*)

0

0

0

Aug.

(*)

0

0

0

Mean 1.36 Ac-ft 985

Sept.

0

0

0

Water year 1956-57: Max 39 Min o Mean 0.44 Ac-ft 321

Peak discharge (base, 100 cfs).--Jan. 13 (4 a.m.) 160 cfs (2.20 ft); Feb. 23 (8 a.m.) 298 cfs

(2.55 ft); Feb. 28 (2 p.m.) 370 cfs (2.70 ft); Apr. 21 (3 p.m.) 298 cfs (2.55 ft).

* Discharge measurement or observation of no flow made on this day.
54 SANTA ANA RIVER BASIN

Big Bear Lake near Big Bear Lake, Calif.

Location. Lat 34*14'20", long 116°58'50", in SW£ sec. 22, T. 2 N., R. 1 W. , at Big Bear 

Lake Dam on Bear Creek, 4 miles west of town of Big Bear Lake and 7f miles upstream 

from mouth.

Drainage area. 38 sq mi, approximately.

Records available.--October 1950 to September 1957 in reports of Geological Survey. February 1884 to September 1950 in files of Bear Valley Mutual Water Co.

Gage. Staff gage read once daily. Datum of gage is 6,670.9 ft above mean sea level

(levels by Bear Valley Mutual Water Co.). Prior to 1912, staff gage at old dam 200 ft 

upstream at same datum (spillway at gage height 52.4 ft).

Extremes. Maximum contents during year, 6,721 acre-ft May 26; minimum, 576 acre-ft 

Jan. 5.

1884-1957: Maximum gage height observed, 72.4 ft Feb. 1, 1916, Apr. 1, 1917, 

Apr. 1, 1922, Apr. 1, 1923, June 1, 1938, May 1, 1939 (reservoir spilling); no contents 

October, November 1898, August to November 1899, October, November 1904.

Remarks. Lake is formed by multiple-arch concrete dam, completed in 1912, replacing 

exls"ting lower dam built in 1884: storage began in spring of 1884. Capacity, 72,200 

acre-ft at elevation 6,743.2 ft (top of dam). No dead storage. Water used for irrigation only.

Cooperation. Record of contents furnished by Bear Valley Mutual Water Co.

Month-end contents, Hater year October 1956 to September 1957

Date

Oct. 31.............................

Dec. 31.............................

Calendar year 1956. ...............

Jan. 31.............................

Mar. 31.............................

May 31....... ......................

Aug. 31.............................

Contents 

(acre-feet)

1,300

59Z

-

Change In contents 

(acre-feet)

_

-1,540

-408

-9,463

+622

-2,423

-894
SANTA ANA RIVER BASIN 55

Santa Ana River near Mentone, Calif.

Location. Lat 34°06'40", long 117 005'54" ) in NW^NEiSW^ sec. 4, T. 1 S., R. 2 W. , on left 

bank near mouth of canyon, 1.8 miles upstream from Mill Creek and 3.5 miles northeast 

of Mentone.

Drainage area. 202 sq mi, including area tributary to Baldwin Lake at head of Bear 

Valley.

Records available . July 1896 to September 1957.

Gaffe . Water-stage recorder. Datum of gage is 1,984.28 ft above mean sea level, datum of 

1929. Prior to Oct. 1, 1914, staff gages at various sites within 1,000 ft of point 

Is miles upstream at various datums. Oct. 1, 1914, to Jan. 17, 1916, staff gage at 

site 10 ft upstream at different datum. Jan. 18, 1916, to Sept. 2, 1917, staff gage 

at present site and datum.

Average discharge . --43 years (1914-57), 32.0 cfs (23,170 acre-ft per year); median of 

yearly mean discharges, 9.3 cfs (6,700 acre-ft per year). Average combined discharge 

of Santa Ana River and canal, 43 -years (1914-57), 86.2 cfs (62,410 acre-ft per year); 

median of yearly mean combined discharges, 70 cfs (50,700 acre-ft per year).

Extremes. Maximum discharge during year, 1,710 cfs Jan. 13 (gage height, 8.60 ft), from 

rating curve extended above 510 cfs on basis of slope-area determination of peak flow; 

no flow for several months,

1896-1957: Maximum discharge, 52,300 cfs Mar. 2, 1938 (gage height, 14.3 ft), on 

basis of slope-area determination of peak flow; no flow at times some years.

Remarks. Records good. Discharge measurements generally made three or more times a 

month. Plow partly regulated by Big Bear Lake (see p. 54). For records of combined 

discharge of Santa Ana River and Southern California Edison Co.'s canal below powerplant No. 2, which diverts above station, see following page. Bear Valley Mutual 

Water Company pumped 605 acre-ft into canal below canal gage. Prior to Oct. 1, 1952, 

pumped water entered the canal above this gage.

Cooperation. --Thirteen discharge measurements on Southern California Edison Co. "a canal 

below powerplant No. 2 furnished by that agency in connection with a Federal Power 

Commission project.

Revisions (water years) .--WSP 931s 1940. WSP 1091: Drainage area.

Rating table, water1 year 1956-57 (gage height, In feet,

and discharge, In cubic feet per second)

(Shifting-control method used Jan. 10, 15, 86, 89, 30,

Mar. 87, to Apr. 5, Apr. 29, 89)

5.0 0

5.1 .1

5.2 .8

5.3 8.4

5.4

5.5 

5.7 

6.6

5.8

11

27

63

6.4 148

6.8 880

7.2 470

7.6 730

Plscharge, In cublo feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

18

13

14

15

16

17

18

19

20

21

22

23

84

25

26

27

28

29

30

31

Tota:

Hear;

Ateft

Oct.

0

0

Q

Nov.

0

0

0

Dee.

o

0

0

Jan.

o

0

0

0

0

5.1

1.7

0

2.8

0

O

Hi TJT

8,9

O

O

0

0

0

0

0

o

0

0

,2

0

0

,8

,5

0

791.8

85.5

1,570

Feb.

O 0"

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

O

0

0

34-7.4

8,4

0

0

7.5

-

51,3

1.8?

108

Mar.

23

IT

5.4

4.5

3.8

3,8

8.7

2.7

5.8

6.8

3.2

8.4

8.4

8,7

8,7

3.8

3.8

8.4

8.2

1,8

TgzTo"

2.0

2.0

8,0

2.0

2.0

1,8

8.2

8,8

2,4

117.3

3.78

233

Apr.

fci

1.6

1.4

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9

1,4

1.3

1.2

1,2

1.2

1.8

1.2

1.0

,S

.8

.6

33.4

1.11

66

May

0.7 

.7

,6

.5

75

.5

.6

.6

.7

,7

.9

.8

.7

.9

.9

.7

.6

,7

il^.3

9.8

4.6

6.1

3.6

2.4

1.6

1.3

1.2

1.2

1.0

1.0

68.4

8.81

136

June

^rl

'.7

.7

.7

.7

,7

.7

,7

.7

.6

,6

,7

.8

.8

,7

.6

.6

.6

.6

.5

,5

.5

.5

ji

.4

.4

.5

.§

.4

18,5

0.68

37

July

°4*

!s

.8

.8

.8

.1

.2

.1

.1

.1

,1

,1

~",1 0

O

0

o

0

0

0

o

o

0

0

0

0

0

0

o

0

8.5

0.08

5,0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 626 Mln 0 Mean 3.87 Ao-ft 2,800

Water year 1956-57! Max 661 Mln 0 Mean 2.97 Ao-ft 8,150

Peaic discharge (base, 150 cfs).-^Jan, 13 (5;3O a.m.) 1,710 ofs (8.60 ft).
56 SANTA ANA RIVER BASIN

Santa Ana River near Mentone, Calif.--Continued

Combined discharge, in cubic feet per second, of Santa Ana River and canal near Mentone, Calif., 

water year October 1956 to September 1957

Day

1

2

3

'54

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

45

46

47

50

4T

36

37

44

47

48

49

50

32

27

26_

26

28

35

41

41

41

42

42

44

43

42

43

44

40

32

1,247

40.2

2,470

Nov.

31

32

3T

31

30

24

23

22

73

31

32

32

32

25

24

25

25

24

23

22

23

23

23

24

24

24

24

24

24

26

781

26.0

1,550

Dec.

29

33

33

33

33

24

20

17

Iff

18

19

27

27

28

24

21

21

20

21

21

20

20

22

24

24

24

24

24

21

19

19

728

23.5

1,440

Jan.

19

19

19

19

28

22

37

54

35

53

38

37

663

152

59

45

36

33

29

29

30

28

28

28

28

33

30

27

27

^0

28

1,741

56.2

3,450

Feb.

30

30

29

28

2T_

27

27

36

62

52

49

47

43

40

38

37

36

35

34

33

32

31

95

6?J

48

45

42

56

-

1,149

41.0

2,280

Calendar year 1956: Max 638 Min 17

Mar.

82

63

54

50

48

45

44

42

49

48

43

41

39

38

37

42

40

38

37

36

35

34

34

33

33

33

32

33

32

32

31

1,278

41.2

2,530

Mes

Apr.

32

33

33

32

31

31

31

30

30

30

30

30

29

59

29

29

31

38

34

37

37

37

36

36

35

34

33

32

30

29

968

32.3

1,920

May

30

31

30

28

75

28

31

31

30

32

36

35

33

37

38

33

31

30

70

52

65

51

55

48

41

38

36

37

37

36

35

1,173

37.8

2,330

June

35

35

35

34

34

34

35

35

36

39_

36

34

34

34

34

32

30

30

29

30

30

28

75

28

33

35

34

32

32

32

987

32.9

1,960

July

31

32

29

28

29

32

32

36

37

38

40

?6

30

28

28

28

32

33

34

33

33

34

38

38

38

38

38

38

30

26

25

1,022

33.0

2,030

Aug.

29

36

37

37

37

37

38

38

37

37

37

37

37

36

36

35

36

38

lo- 41

se

35

33

26

25.

31

32

29

29

28

27

1,067

34.4

2,120

Sept.

26

25

25

24

24

25

32

32

33

33

33

38

35

29

28

33

38

38

29

23

19

17

75

28

31

30

25

24

22

22

847

28.2

1,680

in 37.0 Ac-ft 26,810

Water year 1956-57: Max 663 Min 17 Mean 36.6 Ao-ft 25,760
SANTA ANA RIVER BASIN 57

Mill Creek near Yucaipa , Calif.

Location. Lat 34°05'27", long 117°02'12", in NW^NE^NE^ sec. 13 , T. 1 S. , R. 2 W. , on 

left bank 50 ft downstream from bridge on State Highway 190-D, 3.9 miles north of 

Yucaipa, and 5.3 miles upstream from mouth.

Drainage area. 39.9 sq mi.

Records available. January 1919 to September 1938, October 1947 to September 1957. Prior 

to October 1954, published as "near Craftonville ."

Gage . Water-stage recorder. Datum of gage is 2,916.36 ft above mean sea level (Southern 

California Edison Co. bench mark). Prior to August 1926, at site 100 ft upstream at 

different datums . August 1926 to Mar. 2, 1938, at site 500 ft downstream at different 

datum (destroyed by flood) .

Average discharge .--29 years, 11.2 cfs (8,110 acre-ft per year); median of yearly mean 

discharges, , 5.0 cfs (1,400 acre-ft per year). Average combined discharge, creek and

canals, 29 years, 32.4 cfs (23,460 acre-ft per year); median of combine 

discharges, 23 cfs (16,700 acre-ft per year).

yearly mean

Extremes . Maximum discharge during year, 256 cfs Jan. 13 (gage height, 8.97 ft); no flow 

Dec. 13-26, Feb. 12-15.

1919-38, 1947-57: Maximum discharge , 18,100 cfs Mar. 2, 1938, result of slope-area 

determination of peak flow; no flow at times in some years.

Remarks. Records fair except those for periods of no gage-height record for the river, 

which are poor; records good for combined flow. Discharge measurements generally made 

3 or 4 times a month. Mill Creek power canals Nos . 1,2, and 3, divert from points 

100 ft, 3 miles, and 6 miles above station, respectively. Combined flow of Mill Creek 

and Mill Creek power canals Nos. 1, 2, and 3 is given in table on following page.

Cooperation. Water-stage recorder chart and 12 discharge measurements for Mill Creek 

power canals 2 and 3 furnished by Southern California Edison Co. in connection with 

Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.1

0.10

6.1

Nov.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.0

0.10

6.0

Dec.

0.1

f 1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

o

0

0

0

0

0

0

o

i

i

i

i

i

1.7

0.05

3.4

Calendar year 1956: Max 59

Jan.

0.1

f 1

.1

.1

.1

.1

18

3.3

.1

2.3

a.l

2.7

 

101 .8

.2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

.2

.2

.2

.2

.2

.2

.2

.2

.2

132.3

4.27

262

Feb.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

a.l

a.l

ao

50

0

0

.1

.1

.1

.1

.1

.1

.1

1.3

.2

.2

.1

.1

.4

-

5.0

0.18

9.9

Mar.

0.7

.2

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.2

.6

.6

.6

.8

1.1

1.2

1.4

1.4

1.5

1.5

1.5

1.5

al

a. 5

a.l

17.9

0.58

36

Apr.

~TT 0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.6

.5

ii

.6

.6

.4

.3

.3

.2

.2

.2

.2

.2

7.0

0.23

14

May

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.6

.5

1.1

.6

.2

.1

.1

1.4

a. 7

a. 7

.5

.6

.6

.4

.3

.3

.2

.2

.2

.1

11.7

0.38

23

June

0.2

tl

.1

TT

.1

.2

.2

.Z

.Z

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.8

0.13

7.5

Min 0 Mean 0.50 Ac-ft 365

July

0.1

f I

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

'.Z

3.3

0.11

6.5

Aug.

0.2

!l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

4.2

0.14

8.3

Sept.

0.1

.1

.2

TT

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.3

0.11

6.5

water year 1956-57: Max 101 Min 0 Mean 0.54 Ac-ft 389

Peak discharge (base, 50 cfs). Jan. 7 (4:3O p.m.) 92 cfs (8.37 ft); Jan. 13 (4:30 a.m.) 256 cfa 

(8.97 ft).______________________________________________________________________

a No gage-height record; discharge estimated on basis of probable recession curves and records for 

power canals.
58 SANTA ANA RIVER BASIN

Mill Creek near Yucaipa, Calif. Continued

Combined discharge, in cubic feet per* second, of Mill Creek and canals near Yucaipa, Calif., 

Water year October1 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

9.3

9.7

9.7

tt

10

10

9.8

9.7 

9.7

9.2 

9.2

14fTf

9.7

9.7

9.7

9.6

9.6

9.6

9.6

9.6

9.7

9.9

9.7

9.?

9.7

9.9

10

10

10

300.1

9.66

595

Nov..

9.9

9.9

10 

10

9.9

9.9

8.7

9 7 

9.7

9.6 

9.6

9.7

9.7

9.7

9.9

f .7

9.7

9,7

9.4

9.6

9.6

9,4

9.4

111

9.2

9.2

9.2

9.2

9.2

288.8

9.63

573

Dec.

9.2

9.2

9.2

9.2 

9.2

9.9

9.6

9.6

T§

9.8 

9.7

9.5

9.5

9.3

9.1

g.O

90

9.5

9.3

9.6

9.6

9.8

9.8

9.6

9.1

9.4

9.7

9.7

9.7

9.6

294.7

9.51

585

Jan,

9.6

9.6

9.7

9.7 

11

10

29

20

12

17

13 

17

103

8.0

TT5

9.1

9.5

10

16

9,8

10

10

10

10

10

11

10

10

10

10

10

447.8

14.4

888

Feb.

to

Iff

10

10 

11

11

11

13

19 

IT

16 

15

14

14

14

14

IS

13

13

13

13

19

16

16

16

15

16

382

13.6

758

Mar.

19

TT

15

16 

15

14

ii

14

16 

18

16

14

14

14

14

15

16

16

15

15

15

15

15

15

16

16

16

18

18

19

17

486

15.7

964

Apr.

18

18

17

18 

20

20

20

20

20 

20

20 

20

20

20

20

20

20

.23

J5.

22

20

21

19

19

18

18

18

16

18

20

585

19.5

1,160

May

20

20

20

ti

20

20

20

20 

20

22 

23

22

23

22

19

19

19

24 '22

24

22

23

22

20

22

24

24

24

22

21

662

21.4

1,310

June

21

22

21

22 

22

22

22

Vi

22

23 

22

22

21

22

21

20

20

20

19

19

19

19

18

IS

18

18

18

18

18

613

20.4

1,220

July

17

TT

17

17 

16

 16

16

16

16 

16

16 

16

16

16

15

15

15

15

15

15

15

15

15

14

14

14

14

14

14

14

14

475

15.3

942

Aug.

14

14

14

14 

14

14

14

14

14 

14

if

14

13

13

13

14

13

14

13

14

13

13

13

13

13

13

13

13

13

13

418

13.5

829

Sept.

13

IF

13

13 

13

ii

13

12

12 

12

12 

12

12

12

12

12

12

12

13

12

12

12

12

12

12

12

12

12

12

12

367

12.2

728

Calendar year 1956] Max 79 Min 8.9 Mean 12.6 Ac-ft 9,170

Water year 1956-57: Max 103 Min 8.0 Mean 14.6 Ac-ft 10,550
SANTA ANA RIVER BASIN 59

Mill Creek near Mentone, Calif.

Location. Lat 34°05'14", long 117°06'46", in NE£SE£NW£ sec. 17, T. 1 S. , R. 2 W. , on 

downstream side of right pier of Bear Valley Mutual Water Co.'s pipeline crossing, 

0.4 mile upstream from mouth and 1.6 miles northeast of Mentone.

Records available. February 1939 to September 1957.

Gage.--Water-stage recorder and broad-crested weir. Altitude of gage is 1,780 ft (from 

Topographic map).

Average discharge.--18 years, 2.61 cfs (1,890 acre-ft per year); median of yearly mean 

discharges, 0.7 cfs (510 acre-ft per year).

Extremes.--Maximum discharge during year, 219 cfs Jan. 13 (gage height, 5.05 ft); no 

flow most of the year.

1939-57: Maximum discharge, 1,500 cfs Dec. 23; 1945 (gage height, 6.5 ft), on 

basis of slope-area determination of peak flow; no flow for parts of each year.

Remarks. Records poor. Discharge measurements or .observations of no flow generally 

made two or more times a month. The Zanja and Mill Creek spreading grounds divert 

most of low-water flow above station. Pumpage from wells along stream above station 

for irrigation affects surface flow at station.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

S

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

23

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1956: Max 63

Jan.

0

0

0

0

0

0

12

7.3

3.2

.5

.1

0

84

15

6.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

12S.7

4.15

255

Feb.

o~0

0

0

0

0

0

0

.1.1

1.5

1.8

1.3

1.5

2.1

3.7

~3.2 11 i

3.0

3.9

2.9

1.3

2.8

2.4

0

0

0

0

-.

42.6

1.52

34

Min 0

Mar.

1.8

.4

00 '

.1

.2

0

0

1.8

3.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7.6

0.25

15

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1!

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

Mean 0.41

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.5

0

0

0

1.8

£il

0

0

0

0

0

0

0

0

0.

0

0

5.4

0.17

11

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Ac-ft 295

Water year 1956-57: Max 84 Mln 0 Mean 0.51 Ac-ft 365

Peak discharge (base, 30 cfs). Jan. 7 (6:30 p.m.) 76 cfs (4.13 ft); Jan. 13 (6:30 a.m.) 219 cfs 

(5.05 ft); Mar. 9 (10 p.m.) 33 cfs (3.55 ft)._____________________________________
60 SANTA AHA RIVER BASIN

Plunge Creek near East Highlands, Calif.

Location. Lat 34°07'06", long 117°08'27", in SW^NE^NE^ sec. 1, T. 1 S., R. 3 W., on left 

bank at mouth of canyon at crossing of North Fork ditch siphon, 1.8 miles northeast of 

East Highlands.

Drainage area. 16.6 sq ml (revised).

Records available. January 1919 to September 1957; combined records of creek and diverslons, March 1951 to September 1957.

Gage.--Water-stage recorder and broad-crested weir. Altitude of gage Is 1,590 ft (from 

Topographic map).

Average discharge . 38 years, 5.81 cfs (4,210 acre-ft per year ); median of yearly mean

discharges, 4.0 cfs (2,900 acre-ft per year). Average combined discharge of creek and

diversions, 6 years (1951-57), 5.83 cfs (4,220 acre-ft per year).

Extremes.--Maximum discharge during year, 1,350 cfs Feb. 28 (gage height, 2.87 ft); no 

flow for several months.

1919-57: Maximum discharge, 5,340 cfs Mar. 2, 1938, result of slope-area determination of peak flow; no flow for parts of each year.

1951-57: Minimum combined dally discharge of Plunge Creek and diversion, 0.1 cfs 

Nov. 4, 1953.

Remarks. Records good. Discharge measurements generally made twice a month. Diversions 

for irrigation are made at points 0.5, 1.0, and 2.5 miles above station. Combined 

flow of Plunge Creek and diversions is given on following page.

Rating table, water year 1956-57 (gage height, In feet, and

discharge, In cubic feet per second)

(Shifting-control method used Jan. 14, Peb. 27 to

Mar. 13, May 19-26)

0.1

.2 .6 

1.6 

3.0

0.5 

.6 

.7

4.4

6.3

9.2

15

0.9 

1.0 

1.2 

1.5

Discharge, In cubic feet per ond, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

o

Dec.

0

0

0

Jan.

0

0

0

0

.4

.5

1.8

4.4

1.9

5.5

3.8

2.9

234

TT

6.5

3.3

.5

2.1

2.1

2.2

1.8

1.5

1.4

.1

.1

6.0

4.9

-4.3

4.3

4.4 

4.6

320.3

10.3

635

Feb.

4.8

5.1

4.3

4.1

3.8

3.6

3.5

3.8

5.1

4.4

4.1

3.5

3.3

2.8

2.6

2.7

3.0

3.1

2.8

2.8

2.1

71 1.9

17

10

7.3

6.8

60

-

249.3

8.90

494

Mar.

4556"

20

13

12

10

10

8.8

21

10

10

10

9.1

7.6

5.9

6.5

5.7

4.9

4.8

4.4

4.3

4.1

4.1

4.1

4.0

3.8

3.3

2.1

1.3

175

1.5

288.8

9.32

573

Apr.

1.5

.5

2.0

3.3

2.3

.4

.2

.1

.1

.1

0

0

0

o

0

o

.1

4.3

1.5

6.1

6.1

3.5

2.3

1.1

1.6

.5

.2

.1

.1

.1

38.1

1.27

76

May

-0.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

2.7

5.3

2.6

1.1

1.0

.4

O

0

66

19

40

17

16

15

12

8 4

7 0

6 1

4 1

4 4

4 3

233.5

7.53

463

June

3.7

2TT

.9

.9

1.0

.3

0

0

0

2.1

2.7

2.3

1.5

.1

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

17.6

0.59

35

July

O

0

0

Aug.

0

0

0

Sept.

O

0

0

Calendar year 1956: Max 394 Min O Mean 2.75 Ac-ft 1,990

Water year 1956-57: Max 234 Min 0 Mean 3.14 Ac-ft 2,28O

Peak discharge (base, 13O cfs).--Jan. 13 (6 a.m.) 825 cfs (2.23 ft); Feb. 23 (9 a.m.) 256 cfs 

(1.40 ft); Peb. 28 (2:3O p.m.) 1,350 cfs (2.87 ft); Mar. 9 (5 p.m.) 215 cfs (1:30 ft); May 

(9 a.m.) 210 efs (1.51 ft).
SANTA ANA RIVER BASIN 61

Plunge Creek near East Highlands, Calif.--Continued

Combined discharge, in cubic feet per second, of Plunge Creek and diversions near 

East Highlands, Calif., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.5

.6

.6

.6

.7

.7

.7 

. 6

.6

.6

.6

.6

.6

.6

.5

.5

.6

.6

.6

.5

.6

.6

.6

.6

.6

.6

.5

.5

.6

.6

.7

18.4

0.59

36

Nov.

0.

~

!s

- 

19.1

0.64

38

Dec.

0.8

.8

.7

.8

.8

.8

.8

.7

.7

.8

.7

.8

.8

.8

..9

.9

.9

.9

.9

.9

.6

.7

.8

.8

.8

.8

.8

.9

'.e

24.8

0.80

49

Jan.

0.9

.9

.8

.8

1.2

1.1

2.4

1.9

5.5

3.8

2.9

254

15

6.5

4.8

3.7

3.7

2.8

3.1

3.4

2.7

3.0

2.7

2.7

9.8

6.4

5.7

5.9 

6.3

6.3

355.1

11.5

708

Feb.

6.5

6.5

5.5

5.2

4.8

4.4

4.2

6.9

5.6

5.4

4.8

4.4

3.9

3.8

4.0

4.2

4.3

4.0

4.0

3.6

3.5

?3

17

10

7.3

6.8

60

-

278.3

9.94

552

Mar.

4536"

20

13

12

10

10

21

10

10

10

9.1

7.6

5.9

6.5

5.7

5.3

5.4

4.8

5.0

4.9

4.8

4.7

4.6

5.2

5.2

4.9

4.3 

4.1

3.5

307.3

9.91

610

Apr.

3.9

3.6

3.4

3.3

3.4

3.4

3.2

3.0

2.9

2.9

2.8

2.7

2.7

2.7

2.7

2.9

6.3

4.4

9.4

6.5

6.3

5.4

5.0

5.1

4.2

3.5

3.1

3.1

3.0

117.8

3.93

234

May

3.3

3.4

3.3

3.1

2.9

2.9

3.3

3.0

3.8

6.6

5.3

5.8

6.3

5.6

4.6

3.9

4.0

68

20

40

20

18

18

16

12

9.8

9.3

8.2 

7.9

7.4

328.9

10.6

652

June

6.5

575

5.0

4.5

4.6

4.3

4.1

4.4

6.5

6.3

5.4

4.5

4.1

4.1

3.5

3.0

2.6

2.5

2.4

2.4

2.3

2.1

1.7

1.7

1.8

1.6

T76

1.6 

1.6

106.5

3.55

211

July

1.6

T75

1.5

1.4

1.4

1.4

1.4

1.3

1.3

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.8

.7

75

34.7

1.12

69

Aug.

~

0.8

.7

.7

.8

.8

.8

. 8

7 '

22.1

0.71

44

Sept.

0.7

.6

76

.6

.6

.6

.6

.6 

.6

.6

.6

.7

.7

.7

.7

.8

78

.8

.8

.8

.7

.6

.6

.6

.6

.6

.6

.6

.6 

.6

19.6

0.65

39

Calendar year 1956- Max 397 Min 0.3 Mean 3.97 Ac-ft 2,880

Water year 1956-57- Max 234 Min 0.4 Mean 4.47 Ac-ft 3,240
62 SANTA ANA RIVER BASIN

Santa Ana River near San Bernardino, Calif.

Location.--Lat 34°04'14", long I17°L6'4I", in San Bernardino Grant, on downatream aide of 

bridge on Waterman Avenue, 0.1 mile upstream from San Timoteo Creek and 2.7 miles 

southeast of San Bernardino, San Bernardino County.

Drainage area. 302 sq mi.

Records available. October 1928 to September 1937, October 1954 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 995 ft (from topographic map). Oct. 1, 

T928, to Sept. 30, 1937, at site 1.6 miles upstream at different datum. Oct. 1, 1954, 

to Sept. 30, 1956, at present site at datum 6.00 ft higher.

Average discharge. 12 years, 8.32 cfs (6,020 acre-ft per year); median of yearly mean 

discharges, 1.5 cfs (1,100 acre-ft per year).

Extremes. Maximum discharge during year, about 1,200 cfs Jan. 13; maximum gage height, 

5.12 ft Jan. 13; no flow many days.

1928-37, 1954-57: Maximum discharge, 11,200 cfs Feb. 6, 1937 (gage height, 

4.80 ft, site and datum then in use); no flow for most of each year.

Remarks. Records poor. Plow regulated by Big Bear Lake (see p. 54). 

upslfream for irrigation and domestic use.

Many diversions

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

1617'

18

19

20

21

22

23

24

25

26

27

23

29

30

31

Tota]

Mean

Ac-ft

Oct.

(*)

(*)

0

0

0

Nov.

(*)

(*)

0

0

0

Dec.

0

0

0

0

Calendar year 1956: Max 692

Jan.

0

0

0

0

5

0

*12

*a.5

aO *a8

*a5

al

*324

*a5

*a4

*1.9

1.9

1.6

1.4

1.4

al.5

al.5

*1.6

1.0

.7

*l'.B

2.1

*3.1

12

5.4

a3

406.4

13.1

806

Feb.

a2

al

a2

*a5

al

aO

*ao

al

*3.5

2.4

*a.2

al

al

 1.4

1.6

1.4

1.4

1.4

1.6

*1.9

2.1

3.5

*22

*4.8

7.2

8.6

12

*29

-

120.0

4.29

238

Mar.

*39

3.1

3.1

3.1

3.5

3.1

2.4

*2.4

26

12

 4.4

3.9

3.9

3.5

*3.5

3.9

3.9

 4.8

»8.6

5.0

3.1

*3.0

a2

al

a. 5

aO

aO

aO

#0

0

0

152.7

4.93

303

Apr.

*0

0

0

0

 0

0

0

 0

0

0

0

0

0

0

0

0

0

*.9

*.7

4.2

8.2

*7.2

*1.8

2.1

*.8

*0

0

0

«0

0

25.9

0.84

51

May

0

0

*0

0

0

0

0

0

0

0

18

.6

*0

0

».4

.4

0

0

21

*0

 15

*4.8

14

*2.7

1.6

1.2

*1.3

0

#0

* 6

*0

81.6

2.63

162

June

0.5

.2

.9

*0

T.o

0

.9

.2

.4

*lii

,2

 0

0

0

.6

0

0

0

 0

0

0

0

0

*o

0

0

0

0

0

0

6.8

0.23

13

July

0

0

0

0

0

0

0

0

0

0

 3.0

_

»o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.0

0.10

6.0

Aug.

(*)

0

0

0

Sept.

(*)

(*)

0

0

0

Min 0 Mean 3.63 Ac-ft 2,640

Water year 1956-57: Max 324 Min 0 Mean 2.18 Ac-ft 1,580

Peak discharge (base, 550 efs). Jan. 13 (about 9:50 a.m.) about 1,200 efs._________________

* Discharge measurement or observation of no flow made on this day.

a No gage-height record; discharge estimated on basis of 12 discharge measurements, weather records, and records for nearby streams.
SANTA ANA RIVER BASIN 63

Little San Gorgonio Creek near Beaumont, Calif.

Location (revised) . Lat 34°01'45", long 116°56'40" , In NW^SW^NWi sec. 1, T. 2 S., 

R. 1 W., on downstream side of left abutment of bridge on Oak Glen Road, 3.0 miles 

upstream from Wallace Creek and 7 miles north of Beaumont.

Drainage area . 2.61 sq ml.

Records available .--October 1948 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,320 ft (from 

topographic map) .

Average discharge. --9 years, 0.08 cfs (58 acre-ft per year).

Extremes . Maximum discharge during year, 4.4 cfs Jan. 13 (gage height, 1.38 ft); no 

flow for most of year.

1948-57; Maximum discharge, 319 cfs Aug. 23, 1955 (gage height, 2.18 ft), from 

rating curve extended above 1 cfs on basis of slope-area determination of peak flow; 

no flow for several months each year.

Remarks . Records good. Several small diversions above station for irrigation. Observatlon of no flow generally made once a month.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Jan. 7. .......... 0.3

13........... 1.2

Mar. 1........... .1

May 14 ........... .1

19........... .1

Month

January .........................

Water year 1956-57 ............

Cfs-days

1.5

-

Maximum

1 2

Minimum

0

0

Mean

0.05

.005

Runoff In 

acre-feet

3.0

23

3.6

Peak discharge (base, 10 cfs). No peak above basi 

Note. Flow occurred only on days listed above.

San Timoteo Creek near Redlands, Calif.

Location.--Lat 34°01 I 59", long 117°12 I 29", in NE£NE£NE£ sec. 5, T. 2 S., R. 3 W., on 

downstream side of right abutment of county highway bridge, 2.0 miles southwest of 

Redlands and 3.4 miles downstream from Yucalpa Creek.

Drainage area. 123 sq ml.

Records available. October 1926 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage Is 1,280 ft (from

Topographic map). Prior to Oct. 30, 1934, at site 2 miles upstr.eam at different datum.

Average discharge . 31 years, 1.47 cfs (1,060 acre-ft per year); median of yearly mean 

discharges, 0.5 cfs (360 acre-ft per year).

Extremes.--Maximum discharge during year, 161 cfs Mar. 9 (gage height, 1.93 ft); no flow 

for most of year.

1926-57: Maximum discharge, 7,460 cfs Mar. 2, 1938, on basis of slope-area determination of peak flow; no flow for several months each year.

Remarks. Records fair. Observations of no flow generally made twice a month. Entire 

low flow normally diverted above station for Irrigation. Slight amounts of unmeasured 

irrigation waste water occasionally flow past this station.

Discharge, In cubic feet per second, water year October 1956 to September 1957 

Jan. 5.......... 0.1 Mar. 1.......... 2.9

.2 

.1

8.6

9.

10.

Apr. 21.

4.3

.1

Month

Water year 1956-57 ..........

Cfs-days

9.0

-

Maximum

8.6

62

17

Minimum

0

0

0

0

Mean

0.29

.78

.003

.27

.09

Runoff In 

acre-feet

18

48

.2

194

66

Peak discharge (base, 50 cfs).--Mar. 9 (10 a.m.) 161 cfa (1.95 ft). 

Note. Plow occurred only on days listed above.
64 SANTA ANA RIVER BASIN

San Timoteo Creek near Loma Linda, Calif.

Location. Lat 34°04'02", long 117 0 16'40", in San Bernardino Grant, on downstream right 

bank wingwall of bridge on Waterman Avenue, 0.2 mile upstream from mouth and 1.5 miles 

northwest of Loma Linda, San Bernardino County.

Records available. October 1954 to September 1957.

!_. Water-stage recorder. Altitude of gage is 1,010 ft (from topographic map).

Extremes. Maximum discharge during year, 179 cfs Mar. 9 (gage height, 3.61 ft), from 

rating curve extended above 65 cfs by logarithmic plotting; minimum daily, 0.2 cfs 

Feb. 9, 11.

1954-57: Maximum discharge, 349 cfs Jan. 26, 1956 (gage height, 4.30 ft), from 

rating curve extended above 65 cfs by logarithmic plotting; minimum daily, 0.2 cfs 

on June 25, July 2, 5-8, 10, 18, 1955, Feb. 9, 11, 1957.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements generally made three times a month. Minor diversions above 

station by pumping. Loma Linda sewage disposal plant discharges into stream.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

.4

.6

.7

.2

.2

. _i£

. 2

.2

.2

.4

.2

.4

.O

.1

.1

.4

.4

.7

.7

.1

.2

.2

.4

.4

.4

.2

.2

.4

.4

. _i£i

1 .4

41.2

1.33

82

Nov.

1.1

1.0

.8

1.0

1.0

1.0

.9

1.2

1.0

.8

1.1

1.4

2.4

1.4

1.7

1.0

.8

1.0

1.0

1.4

1.0

.8

.7

.5

.6

.8

.8

.8

.9

1.1

31.0

1.03

61

Dec.

0.8

.8

.9

.9

.9

1.1

.8

.7

l^O

1.0

1.0

1.0

.9

1.2

.7

.8

.8

1.1

.8

.8

.8

1.2

1.4

1.2

.8

1.2

2.6

1.4

1.2

1.4

1.2

32.4

1.05

64

Calendar year 1956: Max 68

Jan.

1.2

1.4

1.2

1.4

2.2

.7

2.9

.9

.9

2.0

1.0

.8

 

13 .5

_._4

.5

.5

.6

.5

.7

.5

.5

.5

.5

.6

.6

.6

.6

2.8

.8

.7

42 ."0

1.35

83

Feb.

0.7

.6

.6

.6

.4

.6

.5

.3

.2

.3

.2

.4

.7

.5

a. 5

a. 5

a. 5

a. 5

a. 5

a. 5

a. 5

a. 5

a2.5

a. 7

.5

.5

.7

1.8

_

17.3

0.62

34

Mln 0.4

Mar.

5.8

.5

.6

.6

.6

.6

.7

1.2

9.5

579

.8

.6

.9

.8

.8

1.0

.7

.7

.8

.8

1.2

.9

76" .4

.4

.4

.5

.4

.5

.6

.6

40.3

1.30

80

Apr.

0.4

.6

1.4-

.8

1.0

.3

.4

.5

1.0

.8

.9

.8

.4

.7

.7

.9

1.2

1.1

1.2

1.8

al

.7

.6

.4

.4

.4

.3

.4

.5

.5

22.1

0.74

44

May

0.8

.8

.9

.5

.8

1.2

1.1

1.1

1.1

1.0

1.2

.7

.7

.9

.9

.9

1.1

.8

1.2

1.1

1.4

.8

.8

.9

.9

.9

1.1

1.2

1.2

1.2

1.2

30.4

0.98

60

June

~7e 0.4

.7

.9

1.0

.8

.8

.4

.4

.7

.6

.7

.8

.7

.4

.4

.6

.8

.7

.8

.9

.5

.5

.6

.8

.8

.6

.7

.4

.4

19.4

0.65

38

July

0.6

.7

.8

.6

.8

.6

.6

.6

.8

.8

.8

.8

.7

.7

.8

.8

.9

.8

.6

-L§.

.5

.5

.6

.6

.7

.7

.6

.6

.7

.6

* 6

21.0

0.68

42

Aug.

0.8

.8

.8

.8

.7

.8

.8

.9

.7

.6

.6

.6

.6

.6

.7

.6

.4

75

.6

.7

.6

.6

.7

.6

.6

.8

1.0

1.0

1.2

T72

 8

22.7

0.73

45

Sept.

0.9

1.0

1.0

1.1

1.0

1.1

.9

.9

1.0

1.0

1.1

1.0

1.1

1.1 1.1

1.0

1.0

1.2

1.2

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.4

1.1

1.2

1_._4

33.0

1.10

65

Mean 1.69 Ac-ft 1,230

Water year 1956-57: Max 13 Mln 0.2 Mean 0.97 Ac-ft 698

Peak discharge (base, 50 cfs). Dec. 27 (1 p.m.) 52 cfs (3.33 ft); Jan. 13 (8 a.m.) 82 cfs (3.55 ft); 

Feb. 28 (3 p.m.) 76 cfs (5.78 ft); Mar. 9 (11:50 p.m.) 179 cfs (3.61 ft ).____________________ 

a No gage-height record; discharge estimated on basla of 5 discharge measurements or Interpolated.
SANTA ANA RIVER BASIN 65

East Twin Creek near Arrowhead Springs, Calif.

Location. La t 34°10'45", long 117°15'53", in tW^NE^NEir sec. 14, T. 1 N., R. 4 W. , on 

right bank 100 ft upstream from Del Rosa Water Co.'s diversion dam, 0.5 mile south 

of Arrowhead Springs, and 1.0 mile downstream from Strawberry Creek.

Drainage area. 8.6 sq mi, approximately.

Records available. December 1919 to September 1957. Prior to October 1952, published as 

Strawberry Creek near Arrowhead Springs, Calif.

Gage. Water-stage Tfo " " recorder and broad-crested weir. Altitude of

Fopographic map).

ge is 1,590 ft (from

Average discharge. 37 years (1920-57), 4.62 cfs (3,340 acre-ft per year); median of 

yearly mean discharges, 3.4 cfs (2,500 acre-ft per year).

Extremes. Maximum discharge during year, 117 cfs May 19 (gage height, 3.10 ft); minimum daily, 0.4 cfs Oct. 1-3.

1919-57: Maximum discharge, 3,360 cfs Mar. 2, 1938, based on rainfall-runoff 

studies; practically no flow at times during 1929, 1931-35.

Remarks. Records good. Discharge measurements generally made twice a month. One small 

diversion above station for domestic supply.

Ratin$5 table, water year 1956-57 (gage height, in fi

" and discharge, in cubic feet per second) 

(Shifting-control method used Mar. 1-9)

1.4

1.5

1.6

0.2

.6

1.2

1.7 2.2

1.9 4.8

2.2 11

2.4

2.6

2.8

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

0.4

.4

.4

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

.6

.6

.6

.6

.6

.6

.6

.8

Tff

.8

..8

18.9

0.61

37

Nov.

0.8

.8

.8

.8

.7

.7

.7

.6

.7

.6

.6

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

1.0

T7C

1.0

1.0

23.7

0.79

47

Dec.

1.0

O5

1.0

1.0

1.2

2.2

T75

1.3

1.2

1.2

1.2

1.1

1.1

1.0

1.0

1.1

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.2

1.2

1.2

36.6

1.18

73

Calendar year 1956: Max 140

Jan.

1.2

37?

1.2

1.4

5.9

2.4

5.1

6.7

2.8

7.1

3.6

3.9

40

-ff.o

5.5

3.6

3.0

2.4

2.1

2.3

2.3

2.2

2.2

2.4

2.4

8.6

5.2

4.2

5.0

4.3

4.0

152.2

4.91

302

Feb.

4.3

4.0

3.9

3.8

3.5

3.2

3.1

3.4

3.4

3.0

3.0

2.8

2.6 275-

2.6

2.6

2.8

2.8

2.8

2.8

2.8

2.6

15-g-.8

5.2

4.2

3.8

6.6

_

-------

110.0

3.93

218

Mar.

11

~ff.8

7.4

6.8

5.9

5.4

4.7

4.2

6.5

5.7

4.3

4.2

3.9

3.9

3.8

4.0

3.8

3.5

3.4

3.2

3.2

3.0

2.6

2.5

2.4

2.3

2.3

2.2 T7i

2.3

2.3

131.7

4.25

261

Apr.

2.2

2.2

2.1

2.1

2.0

2.1

2.2

2.1

2.0

2.1

2.2

2.1

2.1

2.2

2.2

2.2

2.5

5.2 276-

4.5

4.2

3.5

3.1

2.9

2.6

2.4

2.2

2.0

2.2

2.2

76.4

2.55

152

May

2.2

2.2

2.2

2.1 T7T

2.1

2.4

2.3

2.2

3.5

6.2

5.5

4.2

3.8

3.0

2.5

2.5

2.8

33

TJ

14

9.6

8.6

7.2

5.5

4.5

3.9

3.6

3.6

3.6

3.5

167.4

5.40

332

June

3.1

2.9

2.6

2.4

2.4

2.2

2.5

2.8

3.0

5.4

2.9

2.8

2.6

2.9

3.0

2.4

2.0

1.6

1.5

1.7

1.8

1.7

1.5

1.6

1.5

1.5

1.6

1.6

1.5

.66.7

2.22

132

July

1.3

T75- 1.4

1.1

1.1

1.2

1.0

1.0

1.0

.9

.8

.9

.8

.7

.8

.7

.8

.8

.8

.8

.8

.7

.8

.8

.7

.8

.8

.7

.6

76

.6

27.0

0.87

54

Aug.

 %0.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

75

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

. 6

18.2

0.59

36

Sept.

0.6

.7

.6

.6

.6

.6

.6

.6

.6

.7

.6

.6

.6

.6

.6

.7

.9

Tff

.8

.8

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

19.3

0.64

38

Min 0.4 Mean 2.18 Ac-ft 1,580

Water year 1956-57: Max 40 Min 0.4 Mean 2.32 Ac-ft 1,680

Peak discharge (base. 40 cfs). Jan. 13 (5 a.m.) Ill cfs (3.10 ft)j Feb. 23 (9:30 a.m.) 55 cfs 

(2.80 ft); May 19 (B a.m.) 117 cfs (3.10 ft).
66 SANTA ANA RIVER BASIN

Waterman Canyon Creek near Arrowhead Springs, Calif.

Location . Lat 34 "11 ' 35" , long 117°16'25", in NE^NW^NWi sec. 11, T. 1 N. , R. 4 W. , on 

left bank 0.8 mile northwest of Arrowhead Springs and 1.3 miles north of San Bernardino National Forest boundary.

Drainage area. 4.55 sq mi.

Records available. November 1911 to October 1914 (published as "near San Bernardino" ) , 

December 1919 to September 1957.

Gage . Water-stage recorder and broad-crested weir. Altitude of gage is 2,050 ft (from 

topographic map). Prior to December 1919, staff gage at site 300 ft downstream at 

different datum.

Average discharge. --39 years (1912-14, 1920-57), 2.69 cfs (1,950 acre-ft per year); median 

of yearly mean discharges, 1.9 cfs (1,400 acre-ft per year).

Extremes . Maximum discharge during year, 90 cfs May 19 (gage height, 3.13 ft); no flow 

Oct. 1-3, Sept. 7.

1920-57: Maximum discharge, 2,350 cfs Mar. 2, 1938, based on rainfall-runoff 

studies; no flow at times for some summers.

Remarks . Records good. Discharge measurements generally made three times a month. One 

small diversion for domestic use above station.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge. In cubic feet per second) 

(Shifting-control method used May 19-21)

1.5

1.6

1.7

1.8

0 

.2 

.6

1.3

1.9

2.0

2.1

2.2

2.2 

3.5 

5.2 

7.6

2.3

2.4 

2.6

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

5

0

.2

.2

.2

.2

.2

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.4

74

.4

.4

5.1

0.16

10

Nov.

0.4

!s

.3

.3

 i

.3

.3

-.3

.3

.3

.4

.4

10.8

0.36

21

Dec.

0.5 -75

.5

.6

.8

-77 1.5

.7

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

17.8

0.57

35

Jan.

0.5

.4

75

.5

1.9

.9

2.7

3.3

1.3

3.5

1.7

2.6

~4.9 28

2.8

2.0

1.6

1.5

1.3

1.5

1.5

1.3

1.3

1.4

1.6

8.1

3.4

2.7

 2.6

2 5

2 .5

92.3

2.98

183

Feb.

2.5

2.5

2.4

2.2

2.2

2.1

2.1

2.1

2.2

2.0

1.9

1.8

1.7

ITS' 1.6

1.6

1.7

1.7

1.7

1.6

1.6

1.6

~4.0 11

3.1

2.6

2.5

5.6

71.2

2.54

141

Mar.

8.9

s!s

4.3

4.5

3.6

3.2

3.1

5.7

3.8

3.4

3.0

2.7

2.5

2.5

3.1

2.6

2.5

2.4

2.2

2.2

2.2

2.2

2.1

2.0

1.9

1.8

1.7

T77

1.7

1.7

97.1

3.13

193

Apr.

1.7

1.7

1.6

1.6

1.5

1.6

1.4

1.3

1.4

1.5

1.5

1.5

1.5

1.5

1.6

1.-6

1.8

2.9

T7T

2.6

2.1

1.9

1.9

1.7

1.6

1.5

1.3

1.2

T7?

1.2

49.1

1.64

97

May

1.2

1.1

.9

.8

75

.8

1.0

1.0

1.0

1.9

4.8

2:7

2.0

1.9

1.7

1.6

1.5

1.7

~5.2 19

5.0

4.1

3.6

3.5

3.4

3.0

2.8

3.1

3.1

3.0

2.7

89.9

2.90

178

June

2.5

2.4

2.0

1.9

1.8

1.8

1.9

2.0

2.1

2.6

2.1

1.8

1.8

1.9

1.9

1.6

1.6

1.5

1.3

1.2

1.2

1.3

1.2

1.1

1.1

1.0

TTT

1.2

1.3

1.2

49.4

1.65

98

July

1.2

TTT

1.0

.9

.9

.9

.8

.7

.7

.7

.6

.6-

.6

.6

.5

.5

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.4

.3

TT

.3

.3

19.3

0.62

38

Aug.

0.5

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.1

TT

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.2

.3

.3

6.5

0.21

13

Sept.

0.1

.1

.1

.1

.1

.1

0

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.3

TT

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.7

0.12

7.3

Calendar year 1956: Max 86 Hln 0 Hean 1.20 Ac-ft 872

Water year 1956-57: Hax 28 Hln 0 Hean 1.40 Ac-ft 1,010

Peak discharge (base, 35 cfs). Jan. 13 (4 a.m.) 77 cfs (2.94 ft)j Feb. 23 (8 

Hay 19 (3 a.m.) 90 cfs (3.13 ft).

i.m.) 46 cfs (2.73 ft);
SANTA ANA RIVER BASIN 67

City Creek near Highland, Calif.

Location. Lat 34°08 I 38", long HVll'ie", in SE^SW^NW^ sec. 27, T. 1 N., R. 3 W., on 

right bank 0.6 mile upstream from Highland Avenue and 1.5 miles northeast of Highland.

Drainage area. 19.8 sq mi.

Records available.--October 1919 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 1,580 ft (from topographic map). Prior 

£0 Mar. 1, 1939, at site a quarter of a mile downstream at different datum.

Average discharge. 38 years, 8.01 cfs (5,800 acre-ft per year); median of yearly mean 

discharges, 5.3 cfs (3,800 acre-ft per year). Average combined discharge of creek and 

City Creek Water Co.'s canal, 33 years (1924-57), 9.59 cfs (6,940 acre-ft per year); 

median of yearly mean combined discharges, 7.0 cfs (5,100 acre-ft per year).

Extremes. Maximum discharge during year, 1,650 cfs Jan. 13; maximum gage height, 6.25 ft 

Peb. 28 (debris wave); no flow for several months.

1919-57: Maximum discharge, 6,900 cfs Mar. 2, 1938, on basis of slope-area measurement of peak flow; no flow for several months of many years.

Remarks. Records poor. Discharge measurements or observations of no flow generally made 

once a week or more often after January. Drainage area denuded by fire of Nov. 19, 

1956. City Creek Water Co.'s canal diverts above station for irrigation, for records 

of combined discharge of creek and canal, see following page.

Discharge , In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

.1

0

.2

77

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.5

0.02

1.0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

ii

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

Dec.

0

0

0

0

0

.1

0

0

.1.1

.1

.1.1.1

.1

.1

.1

.1

.1.1

.1

.1

.1.1.1

.1.1

.1

.1.1

.1

2.4

0.08

4.8

Jan.

0.1

.1

.1

.1

30

15

19

15

3.9

15

4.4

9.6

192

20

15

14

13

12

12

11

11

10

10

9.1

8.5

10

7.3

7.3

7.3

7.3

7.3

496.4

16.0

985

Feb.

7.3

7.3

7.9

7.9

7.9

7.9

7.9

7.9

7.9

11

7.9

6.7

5.7

5.3

6.7

8.5

10

10

9.7

8.5

7.3

8.5

3355~

26

8.2

sr1

-

309.0

11.0

613

Mar.

34

2T

29

32

20

6.7

5.3

12

19

15

9.7

12

12

9.1

8.5

7.9

7.3

6.7

6.7

6.7

6.2

5.7

5.7

5.7

5.7

5.3

5.3

5.3

5.3

4.8

3.9

339.5

11.0

673

Apr.

3.6

3.6 3.6*

3.6

2.8

.2

.3

.3

.6

.5

.6

.2

.2

72" .1

.1

.2

13

T. 1

8.0

8.5

9.1

9.1

9.1

9.1

6.9

5.7

5.3

4.8

2.1

117.5

3.92

233

May

0 5

5

5

4

4

3

9

6

8

13

120

49

15

11

5.3

3.2

.6

1.4

133 ~52~

13

29

27

20

16

16

17

15

11

9

7.3

598.7

19.3

1,190

June

6.7

6.2

6.4

3.8

.6

.2

iTo

1.5

2.7

7.4

2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

42.9

1.43

85

July

~7!T 0.2

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

3.5

0.11

6.9

Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1TT

0

0

0

0

0

0

0

0

0

0

.1

0

0

0.3

0.01

0.6

Sept.

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

Calendar year 1956; Max 352 Mln 0 Mean 2.56 Ac-ft 1,850

Water nairm* year yea.i 1956-57: j.a*ju-*jr; Max PIO.JL 192 j.sc. Mln IM.II 0 w Mean pitsa.ii 5.24 *j.£.t Ac-ft jtu-iu 3,790 j, < sv

Peak discharge (base, 150 cfs). Jan. 5 (12 m.) 166 cfs (2.70 ft); Jan. 13 (2 a.m.) 1,600 cfa

(4.86 ft); Peb. 28 (4 p.m.) 314 cfs (6.25 ft); May 11 (4 a.m.) 201 cfa (4.72 ft); May 19 (2 p.m.) 

201 cfs (4.92 ft).

5105Z9 O -59 - '
SANTA ANA RIVER BASIN

City Creek near Highland, Calif . Continued

Combined discharge In cubic feet per second, of City Creek and canal near Highland, Calif., 

water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

.2

.2

.2

.2

.2

.2

.5

.4

.4

.6

.8

1.0

.9

.8

.8

.9

1.0

1.0

1.0

1.0

1.0 1.1 1.1

1.0

1:1

1.1

1.3

1.5

TTs

1.5

24.6

0.79

49

Nov.

1.5

T75

1.4

.4

.4

. 4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.2

.2

 .1

.1

.4

.&

.4

.4

.4

1.4

1.4

1.4

1.4

1.4

40.4

1.35

80

Dec.

1.4

1.4

1.4

1.4

1.6

2.8

1.8

1.6

1.3

1.5

1.7

1.7

1.7

1.7

1.6

1.6

1.5

1.7

1.7

1.7

1.8

1.7

1.7

1.7

1.7

1.9

2.6

3.3 376"

2.9

3.1

58.2

1.88

115

Jan.

2.9

373

3.6

3.1

31

15

19

15

3.9

15

4.4

9.6

192 -20~

15

14

13

12

12

11

11

10

10

9.1

8.5

10

7.3

7.3

7.3

7.3

7.3

509.9

16.4

1,010

Feb.

7.3

7.3

7.9

7.9

7.9

7.9

7.9

7.9

7.9

11

7.9

6.7

5.7

5.3

6.7

8.5

10

10

9.7

8.5

7.3

8.5

33

33

26

8.2

2.1

31

-

309.0

11.0

613

Mar.

34

2T

29

32

20

6.7

5.3

12

19

15

9.7

12

12

9.1

8.5

7.9

7.3

6.7

6.7

6.7

6.2

5.7

5.7

5.7

5.7

5.3

5.3

5.3

5.3

4.8

3.9

339.5

11.0

673

Apr.

3.6

376

5.2

3.6

4.1

4.0

4.0

4.1

4.3

4.3

4.5

4.0

3.8

3.7

3.8

3.7

4.3

"6.1 14

8.0

8.5

9.1

9.1

9.1

9.1

6.9

5.7

5.3

4.8

4.7

169.0

5.63

335

May

4.2

4.6

4.5

4.3

4.2

4.1

5.4

4.8

4.8

18

121

49

15

11

5.3

3.2

3.4

2.8 133 

-62-

13

29

27

20

16

16

17

15

11

9

7.3

644.9

20.8'

1,280

June

6.7

6.2

6.4

6.4

5.8

6.3

7.1

8.0

8.8

7.4

6.5

6.3

6.2

6.3

6.4

5.7

5.3

4.9

4.8

4.6

4.5

4.5

4.2

4.0

3.9

3.9

3.9

3.9

3.9

3.8

166.6

5.55

330

July

3.6

375

3.3

3.0

2.9

3.2

3.1

3.0

3.0

3.0

3.0

3.0

2.8

2.7

2.6

2.5

2.7

2.9

2.8

2.6

2.6

2.6

2.5

2.4

2.4

2.5

2.3

2.3

2.2

2.0 

270

85.0

2.74

169

Aug.

1.9

1.9

1.9

1.9

2.0

2.1

2.2

272

2.0

2.0

2.0

1.9

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.7

1.6

1.6

1.6

1.6

1.5

1.4

T75

1.7 

1.8

56.2

1.81

111

Sept.

1.7

1.6

1.7

1.6

1.6

1.6

1.5

1.5

1.6

1.7

1.7

1.8

1.9

2.1

2.1

1*2

2.2

2.2

2.2

2.2

1.7

1.4

T74

1.4

1.4

1.5

1.6

1.4

1.4

1.4

51.3

1.71

102

Calendar year 1956: Max 352 Mln 0.1 Mean 3.95 Ac-ft 2,860

Water year 1956-57: Max 192 Mln 0.1 Mean 6.73 Ac-ft 4,870
SANTA ANA RIVER BASIN 69

Devil Canyon Creek near San Bernardino, Calif.

Location (revised). Lat 34°12 T 12", long 117°20 T 02", in Muscupiabe Grant, on right bank

1.0 mile downstream from confluence of East Fork and West Fork and 7.0 miles northwest

of San Bernardino, San Bernardino County. 

Drainage area. 6.16 sq mi. 

Records available.--November 1911 to September 1912, October 1913 to September 1914,

December 1919 to September 1957. 

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 1,900 ft, revised

U"rom topographic map). Prior to December 1919, staff gage at site 500 ft downstream

at different datum. 

Average discharge.--38 years (1913-14, 1920-57), 1.68 cfs, unadjusted (1,220 acre-ft per

year); median of yearly mean discharges, 0.8 cfs, unadjusted (580 acre-ft per year). 

Extremes.--Maximum discharge during year, 67 cfs Jan. 13; maximum gage height, 5.78 ft 

 Jan. 27 (from debris wave); no flow Oct. 1 to Jan. 9, Jan. 23-25, July 28 to Sept. 30. 

1913-14, 1919-57: Maximum discharge, 3,320 cfs Mar. 2, 1938, by rainfall-runoff

studies; no flow for parts of most years. 

Remarks. Records good except those for period of no gage-height record, which are fair.

Discharge measurements or observations of no flow generally made two or more times

monthly. City of San Bernardino diverts above station for municipal supply. Since

fire of Sept. 25, 1954, when nearly 90 percent of drainage area was burned, station

has been partially buried by debris.

Rating table, water year 1956-57 (gage height, In feet,

and discharge, In cable feet per second) 

(Shifting-control method used Jan. 1O to Feb. 26)

0.95

1.0

1.1

1.2 

1.4 

1.6

1.0 

3.0 

6.1

1.8 

2.0 

2.2

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

Oct.

0

0

0

70

Nov.

O

0

0

68

Dec.

0

0

0

74

Jan.

0

C

O

0

O

0

0

O

0

.7

.1

.9

~5M 23

2.0

1.3

1.0

.5

.2

.2

.3

.1

O

0

0

1.4

1.2

1.0

.9

.8

.7

39.4

1.27

78

62

Feb.

0.6

.6

.5

.5

.4

.4

.3

.2

.4

.7

.5

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

3.4

F3

2.0

1.5

.9

2.0

_

19.6

0.70

39

133

Mar.

3.5

T^

2.4

1.5

.8

.6

.4

.4

1.0

1.3

.9

.5

.5

.4

.4

.9

1.3

1.2

1.3

1.2

1.3

1.3

1.3

1.2

.9

.5

.4

.4

.3

73

.3

31.2

1.01

62

140

Apr.

0.3

.3

.2

.2

.2

.2

.2.'2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.6

.7

74

.2

.2

.2

.1

7T

.1

.1

7.0

0.23

14

118

May

0.1

7T

.1

.1

.1

.1

.1

.1

.1

.1

.5

.6

.3

.2

.2

.2

.2

.6

21

H5.3

7.7

5.8

4.9

2.2

.8

.7

.8

.3

.2

.2 

.2

56.9

1.84

113

129

June

0.1

.1.1

.1

.1

.1

.1

.1

.1.1

.1.1.1

.1.1

.1

.1

.1.1

.1

.1

.1

.1.1.1

.1.1.1

.1.1

3.0

0.10

6.0

178

July

0.1

.1

.1

.1

.1

.2

.2

~7l .3

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

c

0 

0

3.2

o.io

6.3

110

Aug.

0

0

0

105

Sept.

0

0

0

94

Adjusted for diversion

Mean 

Cfsm 

In. 

Ac-ft 70 68 74 140 172 202 132 242 184 116 105 94

Calendar year 1956: Max 32 

Water year 1956-57: Max 23

Mln 0 

Mln 0

Mean 0.32 

Mean O.44

Ac-ft £36 

Ac-ft 318

Adjusted

Calendar year 1956; Mean 

Water year 1956-57: Mean

Cfsir 

Cfsm

Ac-ft 1,440 

Ac-ft 1,600

Peak discharge (base, 25 cfs).--Jan. 13 (3 a.m.) 67 cfs (3.72 ft); May 19 (5 a.m.) 46 cfs (2.50 ft).

t Diversion, In acre-feet, above station for San Bernardino municipal supply, furnished by city 

if San Bernardino.

Note.--No gage-height record Jan. 27 to Feb. 4; discharge estimated on basis of weather records and 

.nd records for Waterman Canyon Creek near Arrowhead Springs.
70 SANTA ANA RIVER BASIN

Lytle Creek near Pontana, Calif.

Location. --La t 34°12'42", long 117°27 1 24", in M^SE^SE^ sec. 36, T. 2 N., R. 6 W., on 

right bank at downstream side of highway bridge abutment, 0.7 mile upstream from right 

tributary and 8 miles north of Pontana.

Drainage area. 46.9 sq mi.

Records available. October 1918 to September 1921, October 1922 to September 1957.

Gage. --Water-stage recorder. Altitude of gage is 2,380 ft (from topographic map). Prior 

Tib Mar. 22, 1938, at site 1 mile downstream at different datum,

Average discharge. 38 years, 8.23 cfs (5,960 acre-ft per year); median of yearly mean 

discharges, 1.7 cfs (1,200 acre-ft per year). Average combined discharge of creek, 

conduit, and infiltration line, 36,5 cfs (26,420 acre-ft per year); median of combined 

yearly mean discharges, 28 cfs (20,300 acre-ft per year).

Extremes . Maximum discharge during year, 575 cfs Jan. 12 (gage height, 3.15 ft); no flow 

most of year.

1918-21, 1922-57: Maximum discharge, 25,200 cfs Mar. 2, 1938, on basis of slopearea determination of peak flow; no flow parts of each year.

Remarks. --Records fair. For records of combined discharge of Lytle Creek, Southern

California Edison Co.'s Lytle Creek conduit, and Fontana Union Water Co.'s infiltration 

line, see following page.

Cooperation. --Records of flow through infiltration line furnished by Fontana Union Water 

Co. ; water-stage-recorder graph for the Lytle Creek conduit furnished by Southern 

California Edison Co. in connection with a Federal Power Commission project.

Revisions (water years) .--WSP 1011: 1943. WSP 1215: Drainage area.

Rating table, water year 1956-57 (gage height, In feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Jan. 5, 7, 10, Feb. 23-26)

0.83 

.9

1,0

.2 

1.9

1.1

1.2

1.3

6.5

14

22

1.6 

2.0 

2.2

148

202

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

e

i

a

9

10

u

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

TotaJ

Mean

Ac-ft

Oct.

(«)

(*)

0

0

0

Nov.

0

0

0

Dec.

C)

(*)

0

0

0

Calendar year 1956: Max 372

Jan.

0S"

0

0

7,4

0

*3.1

0

0

69

0

40

201 *3o"

20

16

16

11

0

0

0

0

0

0

 0

0

0

0

0

*0 

0

413.5

13.3

820

Feb.

O

0

0

0

o

0

0

0

*o

0

0

0

0

0

0

0

0

0

*0

0

0

0

~4T 116

*12

12

2

.5

-

187.5

6.70

372

Mar.

*o.a

.8

.7

.6

*.6

.6

.6

.6

1.2 -&

*.6

.8

.6

*.6

.6

1.2

.6

.5

*,6

.3

.6

.5

.5

.3

.3

.3

.3

*.3

.2

.1

TT

17.0

0.55

34

Apr.

0.1

TT*.l

0

0

0

0

0

0

*o

0

0

0

0

0

0

0

*o

0

0

0

*0

0

0

0

0

0

0

0

0

0.3

0.01

0.6

May

(*)

(*)

0

0

0

June

(*)

0

0

0

July

(")

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Mln 0 Mean 1.88 Ac-ft 1,370

Water year 1956-57! Max 201 Mln 0 Mean 1.69 Ac-ft 1,230

Peak discharge (base, 200 cfs).--Jan, 10 (6 a.m.) 258 cfs (2.38 ft); Jan. 12 (11 p.m.) 575 cfs 

(5.15 ft); Feb. 25 (8 a.m.) 258 cfa (2.32 ft)._____________________________________

* Discharge measurement or observation of no flow made on this day.
SANTA ANA RIVER BASIN 71

Lytle Creek near Fontana, Calif.--Continued

Combined discharge, in cubic feet per second, of Lytle Creek, Southern California Edison Co.'s

conduit, and Fontana Union Water Co.'s infiltration line near Fontana, Calif.,

water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

12

12

12

12

12

12

12

12

12

12

12

12

12

12

II

11

12

12

12

11

11

12

12

12

11

12

12

14

TI

12 

12

371

12.0

736

 Nov.

12

I?

13

13

13

13

13

12

12

12

13

13

12

13

14

14

13

13

13

14

14

12

12

12

12

12

12

12

12

12

378

12.6

750

Dec.

12

I?

12

12

13

13

13

12

13

12

12

12

12

12

12

12

12

12

12

12

12

14

14

14

14

14

14

12

12

12

12

388

12.5

770

Calendar year 1956: Max 382

Jan.

12

3T

12.

13

22

13

17

14

14

82

16

57

-SS 204

23

20

20

21

20

20

20

19

18

18

17

19

18

18

18

18

18

846

27.3

1,680

Feb.

18

T8

18

18

18

20

21

22

20

20

20

20

20

20

20

21

21

21

20

20

20

19

^54 TS

27

29

28

28

-

724

25.9

1,440

Mar.

27

28

2T

27

27

26

26

26

26

25

25

25

24

24

24

24

24

23

23

22

22

22

22

21

5¥

25

24

23

22

21

21

751

24.2

1,490

Apr-.

22

5T

21

21

21

21

21

21

20

20

20

20

21

21

20

19

19

19

20

20

20

20

20

19

19

18

IS

18

18

18

596

19.9

1,180

May

18

T8

17

17

17

17

18

18

16

17

17

17

17

17

17

16

16

16

17

17

17

17

17

17

16

15

T5

15

15

15

15

514

16.6

1,020

June

14

14

13

T3

13

13

14

14

15

IF

14

14

14

14

14

14

13

13

13

13

13

13

13

13

13

13

13

13

13

13

404

13.5

801

July

12

12

12

12

12

12

12

12

12

12

12

12

11

10

To

10

10

11

11

11

11

11

11

11

11

11

11

11

12

14

IT

356

11.5

706

Aug.

I3~ 13

13

12

13

13

13

13

13

13

13

12

I?

12

13

12

12

12

13

12

12

12

12

13

13

12

12

12

12

12

12

386

12.5

766

Sept.

12

Tz

12

12

12

12

1212'

12

12

12

12

12

12

12

12

12

12

12

13

12

12

12

12

12

12

12

12

12

12

361

12.0

716

Min 11 Mean 17.5 Acrft 12.710

Water year 1956-57: Max 204 Mln lo Mean 16.6 Ac-ft 12^060
72 SANTA ANA RIVER BASIN

Cajon Creek near Keenbrook, Calif.

Location (revised ) . Lat 34°16'03", long 117°27 I 30", in SE^SW^SEi sec. 12, T. 2 N. ,

R. 6 W. , on right bank 1,600 ft upstream from Lone Pine Creek and 1.2 miles north of

Keenbrook.

Drainage area. 40.9 sq mi.

Records available. December 1919 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 2,630 ft (from topographic map). Prior 

~tb Oct. 24, 1935, water-stage recorder at site 1,300 ft (revised) downstream at different datum. 

Average discharge . 37 years (1920-57), 8.90 cfs (6,440 acre-ft per year); median of

yearly mean discharges, 5.8 cfs (4,200 acre-ft per year). 

Extremes. Maximum discharge during year, 1,560 cfs Jan. 13 (gage height, 8.50 ft), from

rating curve extended above 200 cfs on basis of slope-area determination of peak flow;

minimum daily, 1.0 cfs Oct. 10-14.

1919-57: Maximum discharge, 14,500 cfs Mar. 2, 1938 (gage height, 19.3 ft), result

of slope-area determination of peak flow; minimum, 0.05 cfs June 25, 1920.

Revisions. The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede figures published in the water-supply

papers indicated.

WSP

1245 

1345 

1395 

1445

Water 

year

1952 

1954 

1955 

1956

Jan. 

Jan. 

Nov. 

Jan.

Date

16, 1952 

24, 1954 

11, 1954 

26, 1956

Discharge 

(cfs)

1,350 

461 

606 

575

Gage height 

(feet)

7.10 

7.40 

7.62 

7.58

Remarks. Records good except those for period of no gage-height record, which are fair.

Discharge measurements generally made twice a month. 

Revisions (water years).--WSP 1091: 1946. Revised figures of discharge, in cubic feet

per second, for high-water periods in the water years 1952 and 1956, superseding those

published in WSP 1245 and 1445, are given herewith:

Mar. 15, 1952.............. 170

Jan. 26, 1956.............. 179

Month

Water year 1951-52. 

Calendar year 1952.

Water year 1955-56.

Revised peak discharge 

1953-54: Jan. 19 (! 

(7.40 ft); Feb. 1.

Cfs-days

1,142.7

4,705.0 

4,845.5

1,017.4

. 1951-52 

5:30 p.m. ) 

5 (6:30 p.m

Maximum

170

489 

489

179

179

: Mar. 15 

312 cfs (7 

.) 406 cfs

(^ 

IE 

C

Minimum

6.3

1.6

2.4

2.0

1.2

:30 p.m.) 4 

ft); Jan. 

.33 ft).

Mean

36.9

12.9 

13.2

8.77

2.78

82 cfs (7 

24 (12 p.

Runoff In 

acr.e-feet

2,27O

9,330 

i 9,610

540

2,020

.45 ft), 

m. ) 461 cfs

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20 

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.6

1.6

1.6

1.6

1.6

1.6

1.4

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.2

1.2

1.4

1.6

1.6

1.6

1.6

1.4 

1.6

1.6

1.6

1.6

1.6

1.8

1.8

1.8

1.8

45.2

1.46

90

Nov.

1.8

1.8

1.8

1.8

1.8

1.6

1.6

1.6

1.6

1.4

1.4

1.4

1.6

1.6

1.6

i.e'

1.6

1.6

1.8

2.0

2.0 

2.0 

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

53.0

1.77

105

Dec.

2.0

2.0

2.2

27?

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

rrs- 1.8

1.8

1.8

2.0

2.0

2.0

2.0

2.2 

2.2

2.2

2.0

2.0

2.0

1.8

1.8

1.8

1.8

63.0

2.03

125

Jan.

1.8

1.8

1.8

2.0

2.4

2.0

2.2

2.2

2.0

4.2

2.9

124

472

To

10

4

4

3.9

3.9

4.1

3.3 

3.3

3.3

3.5

8..1

6.0

5.7

5.7

6.5

7.5

747.8

24.1

1,480

Feb.

9.0

9.4

7.8

7.3

6.5

6.5

6.0

6.5

6.5

6.2

6.2

5.7

5.7

5.4

5.1

4.6

4.6

4.9

4.6

4.4

47T

56

13

11

8.2

7.3

8.2

-

234.8

8.39

466

Mar.

11

7.5

6.8

6.8

6.5

6.5

6.0

6.2

6.5

6.5

6.5

6.5

6.8

6.5

6.0

6.5

6.0

5.4

5.4

4.9

4.6 

4.4

4.6

4.4

4.4

3.9

3.9

3.9

3.7

377

177.2

5.72

351

Apr.

3.5

?75

3.0

3.0

2.9

2.9

2.7

2.5 275"

2.5

2.5

2.5

2.5

2.7

2.7

2.9

2.9

3.0

3.0

3.5

3.3 

3.3

3.0

2.9

2.9

2.7

2.8

3.0

3.3

87.7

2.92

174

Calendar year 1956: Max 179 Min 1.0 Mean 2.72

May

3^0

3.0

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.7

2.7

2.7

2.7

2.9

2.9

2.7 

2.7

2.7

2.7

2.7

2.5 275-

2.5

2 5

2)7

86.5

2.79

172

Ac-ft

June

2.5

273

2.2

2.2

2.2

2.2

2.2

2.2

2.3

2.5

2.3

2.2

2.2

2.3

2.3

2.2

2.0

1.9

179

1.9

2.0 

2.0

2.2

2.2

2.2

2.2

2.2

2.3

2 3

65.6

2.19

130

July

2.2 272"

2.2

2.0

1.9

2.0

1.9

1.9

1.9

1.9

1.9

2.0

2.0

2.0

1.9

1.9

1.9

1.9

1.9

1.9

1.9 

1.9

1.9

1.9

2.0

2.0

2.0

2.0

2.0

2.0

61.0

1.97

121

1,980

Aug.

2.0

2.2

2.3 272"

2.3

2.3

2.3

2.2

2.0

2.2

2.0

2.0

1.9

179

1.9

1.9

1.9

1.9

1.9

1.9

1.9 

1.9

.9

.9

.9

.9

.9

.9

.9

.9

62.1

2.00

123

Sept.

1.9

1.9

1.7

l!7

1.7

1.7

1.7

1.7

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

 1.9

1.9

1.9

1.9 

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

55.6

1.85

110

Water year 1956-57: Max 472 Mln 1.0 Mean 4.77 Ac-ft 3,450

Peak discharge (base, 140 cfs). Jan. 13 (1 a.m.) 1,560 cfs (8.50 ft); Feb. 23 (7 a.m.) 229 cfs

(5.58 ft)._________

Note. No gage-height record Jan. 14-17; discharge estimated on basis of 3 discharge measurements 

and from normal recession curves.
SANTA ANA RIVER BASIN 73

Lone Pine Creek near Keenbrook, Calif.

Location (revised) --Lat 34°15'59", long 117°27'47", in SE^SE^SW^- sec. 12, T. 2 N. , 

R. 6 W. , on right bank 50 ft upstream from The Atchison, Topeka and Santa Fe Railway 

Co. bridge, 150 ft upstream from mouth, and 1.1 miles north of Keenbrook.

Drainage area. 15.0 sq mi.

Records available. December 1919 to September 1938, June 1949 to September 1957.

Gage. Water-stage recorder and concrete control. Datum of gage is 2,605.92 ft above 

mean sea level, datum of 1929, supplementary adjustment of 1946. Prior to Mar. 2, 

1938, water-stage recorder (destroyed by flood) and Mar. 2 to Sept. 30, 1938, staff 

gage at same site at datum 0.98 ft higher.

Average discharge. 26 years (1920-38, 1949-57), 1.29 cfs (934 acre-ft per year); median 

of yearly mean discharges, 0.5 cfs (360 acre-ft per year).

Extremes.--Maximum discharge during year, 540 cfs Jan. 13 (gage height, 4.93 ft), from 

rating curve extended above 130 cfs on basis of slope-area determination of peak flow; 

minimum daily, 0.1 cfs for many days.

1919-38, 1949-57: Maximum discharge, 6,180 cfs Mar. 2, 1938, on basis of slopearea determination of peak flow; minimum, 0.1 cfs at times during 1926-32, 1951-52, 

1956-57.

Remarks.--Records good. Discharge measurements generally made twice a month.

Rating table, water year 1956-57 (gage height, In feet, and discharge, in cubic feet per second)

(Shifting-control method'used Oct. 22-28, Nov. 18 to Jan. 10, Jan. 13 to Feb. 23, Mar. 1-13,

Mar. 30 to Apr. 3, Aug. 8-23, Aug. 28 to Sept. 30)

1.1

1.2

1.3

1.4 1.6

1.5

1.6 

1.8

2.7 

4.1 

8.2

2.1 

2.4 

2.7

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-rt

Caler

Oct.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2 

.2

4.9

0.16

9.7

Nov.

~7z 0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.7

0.16

9.3

Dec.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

3.1

0.10

6.1

idar year 1956 : Max 30

Jan.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.1

23

57

.4

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

83.5

2.69

166

Feb.

0.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

 

5.7

.2

.2

.2

.2

-

9.6

0.34

19

Mar.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

4.2

0.14

8.3

Apr.

~7z 0.2

.2

.2

.2

.2

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

5.7

0.19

11

May

~T2 0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

5.3

0.17

11

June

~TT 0.1

.1.1

.1

.1

.1

.2

77

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

4.1

0.14

8.1

July

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

3.1

0.10

6.1

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.1

0.10

6.1

Min 0.1 Mean 0.26 Ac-ft 188

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.0

0.10

6.0

Water year 1956-57 : Max 57 Mln 0.1 Mean 0.37 Ac -ft 267

Peak discharge (base, 80 cfs).--Jan. 13 (3 a.m.) 541 cfs (4.93 ft).
74 SANTA ANA RIVER BASIN

Lytle Creek (east channel) at San Bemardino, Calif.

Location.--Lat 34°OS I 50", long 1170 18'47", in San Bernardino Grant, on left bank 10 ft 

downstream from Mount Vernon Avenue Bridge in San Bernardino, San Bernardino County.

Records available.--January 1929 to September 1957 (discontinued).

Gage.--Water-stage recorder. Altitude of gage is 1,050 ft (from topographic map). 

Prior to Mar. 2, 1938, at site a quarter of a mile upstream at different datum.

Extremes.--Maximum discharge during year, 20 cfs Jan. 13 (gage height, 2.61 ft); no flow 

for many days.

1929-57: Maximum discharge, 21,500 cfs Mar. 2, 1938, on basis of contractedopening determination of peak flow; no flow at times in many years.

Maximum total discharge of Lytle Creek (east and west channels combined), 29,400 

cfs Mar. 2, 1938.

Remarks. Records poor. Diversion for irrigation and to debris cone for ground-water 

recharge. Since 1945, Lytle Creek flood-control dam 1.5 miles above station has 

diverted flow away from this channel and carried it directly to Warm Creek. Capacity 

of flood-control diversion channel, 30,000 cfs. A maximum of 300 cfs of low-stage 

flow can be diverted to east channel at dam when desired. Water over spillway of dam 

would enter east channel.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

.22

23

24

25

26

27

23

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

> aO.4

».4

.4

.5

.4

.3

.4

.4

.4

.4

.4

.1

0

.2

.2 

.2

11.1

0.36

22

Nov.

 0.4

.4

.2

.2

.3

.4

.3

.3

.2

.1

0

.1

.2

.2

.4

.4

.3

.2

.2

.4

.4

.1

.3

0

0

.2

.4

.6

*.6

 2.

8.5

0.28

17

Dec.

0.3

47?

.3

.5

.4

.4

.5

.7

iJ5

.7

.6

.5

.8

.4

.2

.8

.8

.7

.7

«.8

.6

.6

.6

.6

.6

.5

.5

.1

.1 

.3

15.7

0.51

31

Calendar year 1956: Max 9.

Jan.

0.4

.7

.8

1.2

1.8

.9

1.9

.7

.3

.7

.2

4TT

11

T.2

3.2

3.0

3.0

3.0

2.0

2.4

2.8

3.0

3.5

3.8

3.4

3.2

2.4

 1.6

1.0

.2

.2

71.6

2.31

142

Feb.

0.2

.2

O

.2

.3

.2

.2

.2

0

0

.1

.1

.2

.5

*.4

.2

0

.2

.4

.4

.3

0

1.0

TT

.2

.3

.4

.8

-

7.1

0.25

14

Mar.

0,8

.1

.4

.3

*.4

.4

.4

.3

.1

.3

.3

.3

.3

*.4

.3

.1

.4

.4

.4

/ - 4

.2

.1

0

.4

.3

.2

.2

.3

.2 

.1

S.9

0.29

18

Apr.

0.2

.4

.3

.2

«.l

05"

.1

.3

.3

.1

.3

0

.1

O

0

.2

.2

.4

.8

1.5

T75

1.1

.7

*.2

.2

.1

.2

.3

.4

10.2

0.34

20

May

0.5

.6

.6

0

:!

.2

.3

«.3

.3

.5

2.1

2.2

2.2

2.3 z^o

1.4

1.4

1.1

2.0

1.9

1.3

.2

.3

1.3

.8

.9

.9

1.2

1.1

.5

*.6

31.6

1.02

63

June

0.2

O

.2

.4

.3

.4

.5

0

.2

_._§_

.9

.8

.7

.8

.8

.7

.5

.6

*.4

.5

.6

a. 5

a. 4

.3

.5

.5

.4

.4

a. 4

a. 3

14.1

0.47

28

July

0.3

.6

7?

.3

.5

a. 4

a. 3

.3

*.4

.4

.4

.5

i

;2

.4

.4'.5

.4

.2

.2

.4

.6

.6

.6

.6

.2

.1

.2

.4 

.4

11.6

0.37

23

Aug.

0.4

.6

.1

.1

.3

*.5

.5

.4

.5

.2

.1

.2

.5

.6

.6

.6

.5

.1

.2

.6

.8

4.9

.9

.2

.2

*.5

.6

.6

.4 

0

13.6

0.44

27

Sept.

0

0

.1

.4

.3

.4

0

0

.2

.4

1.0

TF

.3

.1

.1

0

.3

.3

.4

.4

0

.2

.3

*.4

.4

.3

.5

.3

.1

.3

8.1

0.27

16

3 Mln 0 Mean 0.46 Ac-ft 331

Water year 1956-57: Max 11 Min 0 Mean O.58 Ac-ft 421

» Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis or 4 discharge measurements and recorded 

range in stage.
SANTA ANA RIVER BASIN 

Warm Creek near Colton, Calif.

75

Location.--Lat 34°04'08", long 117°18'26", in San Bernardino Grant, on right bank 10 ft 

upstream from Colton Avenue Bridge, 0.4 mile upstream from mouth, and 0.9 mile east of 

Colton, San Bernardino County.

Drainage area. 259 sq mi.

Records available.--August 1920 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 950 ft (from topographic map).

Average discharge. 37 years, 46.8 cfs' (33,880 acre-ft per year); median of yearly mean 

discharges, 41 cfs (29,700 acre-ft per year). Average combined discharge of Warm Creek 

and Meeks & Daley Canal, 37 years. 58.3 cfs (42,210 acre-ft per year); median of yearly 

mean combined discharges, 54 cfs (39,100 acre-ft per year).

Extremes.--Maximum discharge during year, 1,940 cfs Jan. 13 (gage height, 6.50 ft); mini-

.mum daily, 8.4 cfs May 26, 30.

1920-57: Maximum discharge, 27,500 cfs Mar. 2, 1938 (gage height, 11.2 ft), on 

basis of slope-area determination of peak flow; minimum, 1.4 cfs July 17, 1951 (gage 

height, 0.71 ft). Maximum discharge Including west channel of Lytle Creek, 35,000 cfs 

Mar. 2, 1938.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements generally made weekly. For records of combined discharge of 

Warm Creek and Meeks & Daley Canal, which diverts above station for irrigation, see 

following page. Flow in Meeks & Daley Canal includes water pumped from the groundwater basin near Meeks & Daley Canal gage. In seasons of high-water table, there is 

flow in a depression paralleling Warm Creek 500 ft east of station. This year there 

was no flow. Lytle Creek flood channel (capacity, 30,000 cfs), completed in fall of 

1945, enters Warm Creek above station and includes any flow which formerly might have 

been recorded at station on Lytle Creek (west channel).

Revisions (water years). WSP 1061: 1944-45.

Rating table, water year 1956-57 (gage height, In feet, and

discharge, In cubic feet per second) 

(Shifting-control methdd used Jan. 5, Feb. 23, Mar. 1, 5-9)

0.5 3.6 -0.8 29 1.8 173

.6 10 1.2 77 2.5 330

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

15

15

15

18

IF

13

12

15

15

15

14

14

14

12

15

15

14

13

13

13

13~9.2

13

13

13

16

15

13

14

14

14

432.2

13.9

857

Nov.

13

12

11

11

13

13

14

14

12

12

10

I?

13

13

12

12

12

10

13

14

13

11

13

12

12

14

13

14

12

11

371

12.4

736

Dec.

11

10

IT

11

11

19rs

14

13

15

15

15

15

14

13

11

13

13

13

14

13

12

11

12

10

12

12

12

11

10

12

'393

12.7

780

Calendar year 1956; Max 826

Jan.

10

12

12

12

58

a!9

70

30

17

39

16

24

326 525-

a!6

a!4

12

11

10

16

15

16

13

15

15

37

25

20

70

21

17

1,016

32.8

2,020

Feb.

16

16

16

18

17

18

IB- 15

17

16

16

18

21

18

16

16

15

17

19

18

18

17

138

24

19

17

16

57

-

644

23.0

Ii280

Min 6 . 3

Mar.

ale" 80

a!7

al8

19

21

22

23

40

25

a23

21

21

23

26

30

23

24

24

23

23

21

20

19

22

20

17

15

16

13

9.2

714.2

23.0

1,420

Apr.

12

13

15

16

14

12

12 9.2

11

11

10

14

11

9.2

11

12

12

22

13

56

25

16

16

15

16

15

12

10

13

12

425.4

14.1

844

May

12

12

13

10

10

13

13

14

13

13

37

17

15

16

16

13

14

10

SO" 78

42

19

15

10

9.2

10 8.4'

11

11

8.4

10

523.0

16.9

1,040

June

10

10

14

13

13

13

13

10

16 9.2

12

14

12

12

11

10

14

16

16

17.

16

16

12

13

13

13

13

13

11

10

385.2

12.8

764

July

13

13

13

11

13

12

10

13

13

13

13

13

12

11

15

15

15

15

15

14

13

15

14

13

13

13

12

11

13

13

13

405

13.1

803

Aug.

14

15

14

13

14

14

14

15

15

14

IB- 12

15

14

14

14

14

13

16rs

14

15

14

14

12

15

14

14

14

14

14

438

14.1

869

Sept.

12

12

15

15

14

14

12

11

12

11

11

11

11

11

10

13

14

14

15

15

16

16

16

12

17

17

16

16

15

15

414

13.8

821

Mean 16.1 Ac-ft 11,660

Water year 1956-57; Max 326 Mln 8.4 Mean 16.9 Ac-ft 12,230

Peak discharge (base, 500 cfs). Jan. 13 (6:45 a.m.) 1,940 cfs (6.50 ft).

a No gage-height record; discharge estimated on basis of 4 discharge measurements and adjacent

gage -height record.
76 SANTA ANA RIVER BASIN

Warm Creek near Colton, Calif.--Continued

Combined discharge, In cubic feet per second, of Warm Creek and Meeks & Daley Canal 

near Colton, Calif., water year October 1956 to September 1957.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

Oct.

25

25

25

2926-

24

23

26

26

26

25

25

25

23

26

27

26

24

24

24

20

24

24

24

24

27

26

24

24

24

25

770

24.8

1,530

764

Nov.

24

23

22

22

24

24

25

24

23

23

21

22

23

23

22

22

22

20

22

22

20

19

2T

22

22

24

22

24

22

20

670

22.3

1,330

776

Dec.

20

20

20

20

20

28

24

23

22

24

24

24

24

23

22

20

22

22

22

23

22

21

20

20

16.

20

22

22

20

20

22

672

21.7

1,330

805

Jan.

20

20

19

19

61

19

70

31

18

40

16

24

~2¥ 326

16

14

12

11

10

16

15

16

13

15

15

37

25

20

70

21

17

1,054

34.0

2,090

823

Feb.

16

16

16

18

17

18

15

IF

17

16

16

18

21

18

17

17

16

18

19

19

19

19

139 ~24

19

17

16

57

_

653

23.3

1,300

725

Mar.

Tg- 80

17

18

19

21

22

23

40

25

23

21

21

23

26

30

23

24

24

23

23

21

20

19

22

21

18

16

17

17

15.

728

23.5

1,440

820

Apr.

18

19

24

30

28

26

23

26

25

25

24

28

25

23

25

26

26

37

27

il

29

19

18

19- 17

21

24

22

26

28

755

25.2

1,500

820

May

28

27

28

25

25

27

28

28

27

27

51

31

27

26

27

24

26

23

92

44

57

34

32

26

25

24

27

28

28

25

27

974

31.4

1,930

842

June

27

26

30

29

28

28

28

25

24

31

27

29

27

26

25

24

27

30

29

31

30

28

24

25

25

25

25

24

21

2T

799

26.6

1,580

815

July

23

23

23

21

23

22

202"3

23

25

27

27

26

25

29.

29

29

29

29

27

26

28

27

26

26

26

24

23

25

25

25

784

25.3

1,560

853

Aug.

26

27

26

25

26

26

26

27

27

26

24

2T

27

26

26

26

26

25

28

27

26

27

26

26

24

27

26

25

26

26

26

809

26.1

1,600

845

Sept.

24

23

26

26

24

24

23

22

23

22

22

22

22

22

21

24

25

25

26

26

27

27

27

28

2T

28

27

27

26

26

743

24.8

1,470

810

Mean 

Cfsm 

In. 

Ac-ft 766 554 525 1,267 575 620 680 1,088 765 707 755 660

Observed

Calendar year 1956: Max 837 Mln 10 Mean 27.3 Ac-ft 19,830 

Water year 1956-57: Max 326 Mln 10 Mean 25.8 Ac-ft 18,660

Adjusted

Calendar year 1956: Mean Cfsm In. Ac-ft 10,310 

Water year 1956-57: Mean Cfsm In. Ac-ft 8,960

t Inflow, In acre-feet, from San Bernardlno city sewer plant.
SANTA ANA RIVER BASIN 77

Santa Ana River at Riverside Narrows, near Arlington, Calif.

gage Is 666.87 ft above mean sea level (levels by 

to Nov. 15, 1943, at site l£ miles upstream at

Location. La t 33°57'53", long 117°27'55", in SWiNE&3W£ sec. 25, T. 2 S., R. 6 W. , on 

right bank at downstream side of bridge on Pedley Road, 1.8 miles downstream from 

Union Pacific Railroad bridge, 3.3 miles northwest of Arlington, and 12 miles upstream 

from Temescal Creek.

Drainage area . --858 sq mi.

Records available . January 1929 to September 1957.

_. -- Water-stage recorder. Datum of

iverside County engineer) . Prior tc _ ,

different datum. During this period temporary stations were maintained at different 

sites and datums within a quarter of a mile of the permanent gage. Nov. 15, 1943, 

to Aug. 31, 1954, at same site at datum 3.00 ft higher. Sept. 1, 1954, to Jan. 17, 

1955, at same site at datum 2.00 ft higher.

Extremes. --Maximum discharge during year, 3,450 cfs Jan. 13 (gage height, 5.57 ft); minimum daily, 21 cfs July 28 to Aug. 1.

1929-57: Maximum discharge, 100,000 cfs Mar. 2, 1938, on basis of slope-area 

determination of peak flow; minimum daily, 20 cfs for several days during August and 

September 1947.

Remarks. --Records good, except those above 350 cfs, which are fair. Discharge measurements generally made once a week. Flow partly regulated by Big Bear Lake (see 

p. 54). Natural flow of stream affected by ground-water withdrawals, diversions for 

irrigation, and return flow from irrigated areas. The Metropolitan Water District 

of Southern California released 3,930 acre-ft of Colorado River water into Santa Ana 

River about 1.1 miles above station during October 1956.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

(t)

Oct.

167

167

170

174

174

180

182

182

182

182

144

95

90

702i

25

25

25

25

26

27

27

27

27

27

28

27

28

28

26

26

2,608

84.1

5,170

3,930

Nov.

27

27

27

27

27

27

27

27

27

26

26

26

26

26

26

26

26

26

26

26

27

27

27

27

27

27

27

27

26

26

797

26.6

1,580

0

Dec.

26

26

25

25

25

26

26

26

27

28

28

28

27

27

27

27

26

26

26

26

26

28

28

29

28

28

27

27

26

26

26

827

26.7

1,640

0

Jan.

26

25

25

25

39

29

47

42

34

41

35

35

757

50

33

29

27

26

26

29

27

26

26

27

26

29

27

27

71

36 

35

1,737

56.0

3,450

0

Feb.

33

32

30

30

30

30

30

30

30

2Q_

28

28

28

28

28

28

28

28

28

28

28

28

60

32

30

28

28

67.

884

31.6

1,750

0

Mar.

130

30

30

30

28

28

27

27

30

43

30

30

30

30

29

34

32

33

33

29

27

25

23

22

22

22

22

22

22 

22

974

31.4

1,930

0

Apr.

34

26

26

26

25

25

25

25

25

25

25

26

26

26

27

28

28

32

28

44

37

30

27

28

27

27

25

25

24

25

827

27.6

1,640

O

May

25

25

25

25

25

25

25

25

25

25

32

27

24

23

23

23

23

23

45

38

42

30

29

29

27

26

26

26

27

27 

27

847

27.3

1,680

0

June

28

27

27

28

28

28

28

27

26

28

26

26

26

26

26

25

25

25

25

25

25

24

24

25

25

26

26

26

26

26

783

26.1

1,550

0

July

26

26

26

26

26

26

25

26

26

26

28

25

27

25

25

25

25

24

25

24

23

25

25

24

24

24

22

21

21

21 

21

766

24.7

1,520

0

Aug.

21

23

23

23

25

26

26

26

26

25

25

26

26

26

25

24

24

24

24

24

23

24

24

24

2.5

25

24

23

23

24 

24

753

24.3

1,490

0

Sept.

23

23

23

23

23

23

23

24

24

25

25

24

25

24

23

23

22

23

23

23

23

23

23

23

23

23

23

23

23

23

699

23.3

1,390

0

Adjusted for release of Colorado River water

Mean

Cfsm

In.

Ac-ft 1,240. 1,580 1,640 3,450 1,750 1,930 1,640 1,680 1,550 1,520 1,490 1,390

Calendar year 1956: Max 1,480 _ Mln 22 

Water year 1956-57: Max 757 Mln 21

Mean 65.9 Ac-ft 47,83O 

Mean 34.3 Ac-ft 24,800

Calendar year 1956: Mean 

Water year 1956-57: Mean In.

Ac-ft 24,680 

Ac-ft 2O,86O

Peak discharge (base, 5OO efs).--Jan. 13 (1O:50 a.m.) 3,450 cfs (5.57 ft).

t Colorado River to Santa Ana River.
78 SANTA ANA RIVER BASIN

Day Creek near Etiwanda, Calif,

Location. Lat 34°11'05", long 117°32'20", in NWvNWJj-SWv sec. 8, T. 1 N., R. 6 W. , on left 

bank 0.5 mile downstream from confluence of 2 main forks and 4 miles north of Etiwanda.

Drainage area. 4.8 sq mi, approximately.

Records available. January 1929 to September 1957. Combined creek and diversion, October 

1950 to September 1957.

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 2,870 ft (from 

topographic map). Prior to Mar. 2, 1938, at site 200 ft upstream at different datum 

(destroyed by flood). May 2 to Sept. 2, 1938, at site 200 ft downstream at different 

datum.

years, 3.83 cfs (2,770 acre-ft per year); median of yearly mean

discharges, 2.8_cfs (2,000_acre-ft per year). Average combined discharge of Day Creek

cfs (2,060 acre-ft per year).

Average discharge.-- 

discharges,2.8 c 

and diversion, 7 years ' (1950-57) , 2*.

Extremes. Maximum discharge during year, 176 cfs Jan. 13 (gage height, 2.70 ft); minimum daily, 0.2 cfs Nov. 3-6, July 8 to Sept. 30.

1929-57; Maximum discharge, 4,200 cfs Mar, 2, 1938, based on rainfall-runoff 

studies; no flow Oct. 5 to Nov. 1, 1950.

Remarks.--Records good. Discharge measurements generally made twice a month. Etiwanda 

Water Co. diverts water above station. For records of combined discharge of creek 

and diversion, see following page. In addition, an infiltration gallery, unwatering 

the gravel in the bed of the stream at the gaging station, produced 430 acre-ft 

during year.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

0,8 

1.0

1.2

1.3

2,4

4,4 

7.4 

9.8

1.7

1.9

2.0

Discharge, In cubic feet per second, water year October 195g to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

0.5

.6

.6

.6

.6

.6

.6

,6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6'.6

.6

.6

.6

.6

.5

.4

.3

.3

.3

.3

.3

f3

16.4

0.53

33

Nov.

0.3

.3

.2

72

.2

.2

;s

.3

.3

.3

.3

.A

.4

.5

.5

.3

.3

.3

.5

.7

.5

.7

.8

.8

.8

.8

1.0

1.0

1.0

1.0

15.2

0.51

30

Dec.

1.0

1.1

.7

.5

76

1.0

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.7

.7

.6

.5

.5

.5

.5

.6

.8

.8

.8

.8

.8

. 8

20.4

0.66

40

Calendar year 1956: Max 65

Jan.

0.9

1.0

,8

.7

1.2

.4

.8

1.4

1-2

3.1

2.2

9.6

~6.9 40

4.8

3.9

3.2

2.8

2.6

2.6

2.5

2.3

2.3

3.4

3.4

4.2

3.4

3.0

3.1

2.7

2.6

123.0

3.97

244

Feb.

2.6

2.6

2.6

2.2

1.6

1.6

1.6

2.6

3.9

3.9

3.9

3.9

3.9

3.8

3.6

3.4

3.2

3.0

2.9

2.7

2.6

1.6

12

4.8

2.7

2.2

2.4

2.9

-

90.7

3.24

180

Mar.

4.4

470

3.8

2,2

a. 6

a. 5

a. 5

a. 4

a. 5

a. 4

a. 4

a. 3

a. 3

,3

,3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

T 3

.3

.3

.3

23.7

0.76

47

Apr.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

,3

.3

.3

.3

.3

.9

.8

l.Q

1.0

1.0

1.4

1.4

1.4

1.1

1.0

.9

1.0

1.0

19.0

0.63

38

May

1.0

1.0

1.0

,9

.9

1.0

1.0

1,1

1,2

1.4

2.1

1.7

1.6

lie

1.3

1.2

1.1

1.2

2.3

^

.3

.3

,3

.3

.3

.3

.5

.3

.3

.3

.3

28.2

0.91

56

June

0,3

.3

.3

.3

.3

,3

.3

.3

,3

,3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

,3

.3

.3

.3

.3

.3

.3

.3

.3

.3

9.0

0.30

18

July

Ot 3

.3

3

.3

.3

.3

.3

,271?

.2

.?',£

.2

.2

.2

,2

.2

.2

.2

,2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

6.9

0.22

14

Aug.

0.2

.2

.2

.2

.2

.2

,2

.2

,2

.2

,2

.2

,2

.2

.2

.2

.2

.2

.2

.2

.2

.2

,2

,2

.2

.2

.2

.2

.2

.2

.2

6.2

0.2p

12

Sept.

0.2

,2

.2

.2

,2

,2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

,2

.2

.2

.2

.2

,2

 2

.2'.Z

6.0

0.20

1?

Mln 0.2 Mean 0.84 Ac-ft 611

Water year 1956-57: Max 40 Mln 0.2 Mean 1.00 Ac-ft 724

Peak discharge (base. 25 cfs).--Jan. 13 (3:30 a.m.) 176 cfs (2.70 ft); Feb. 23 (9:30 a.m.) 33 sfs 

' (1.84 ft)._____________________________________________'______________'

a No gage-height record; discharge estimated on basis of weather record? and records for Day 

Creek diversion.
SANTA ANA RIVER BASIN 79

Day Creek near Etiwanda, Calif.--Continued

Combined discharge, in cubic feet per second, of Day Creek and diversion near Etiwanda, Calif., 

water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

~30.7

1.0

1.0 1.1

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

1.0

1.0

1.0

.9

.9

.9

1.2

1.2

1.1

1.0

1.0

1.2

1.2

1.1

1.1

31.5

1.02

62

 Nov.

1.1

1.1

1.0

1.0

.9

.8

.9

.9

.9

.9

.9

1.0

1.1

.9

1.0

1.0

1.0

1.0

1.0

.8

1.0

1.1

1.0

1.0

1.0

.9

1.1

1.1

1.1

1.1

29.6

0.99

59

Dec.

1.1

1.2

1.2

1.2

1.3

1.5

T74

1.3

1.2

1.2

1.1

1.2

1.2

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.1 1.1 1.1 1.1

1.0

1.0

.9

.9

.9

.9

.9

34.2

I'.IO

68

Jan.

1.0

T7T

1.1

1.2

2.4

1.6

2.1

2.0

1.6

3.3

.2.3

9.7

40

6.9

4.8

3.9

3.2

2.8

2.6

2.6

2.5

2.3

2.3

3.4

3.4

4.2

3.4

3.0

3.1

2.7

129.1

4.16

256

Feb.

 276 2.6

2.6

2.6

2.6

2.6

2.7

3.7.

3.9

3.9

3.9

3.9

3.9

3.8

3.6

3.4

3.2

3.0

2.9

2.7

2.6

2.6

13"4.8

4.4

4.0

3.5

4.2

-

103.2

3.69

205

Mar.

4.5

47T

3.9

3.5

3.2

3.0

2.8

2.6

2.9

2.5

2.4

2.2

2.2

2.2

2.1

2.4

2.3

2.2

2.1

2.1

2.1

2.0

1.9

1.9

1.8

1.8

1.7

T77

1.7

1.7

75.3

2.43

149

Apr.

1.8

1.7

177

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

2.0

2.3

270

2.1

2.1

2.1

2.0

1.9

1.9

1.9

1.9

1.7

1.8

1.8

54.8

1.83

109

May

1.7

1.7

1.7

1.6

176

1.7

1.7

1.8

1.9

2.1

2.6

2.2

2.1

2,1

2.0

1.9

1.8

1.9

4.0

277

2.4

2.3

2.3

2.1

1.9

1.8

1.8

1.7

1.7

1.7

1.7

62.2

2.01

123

June

1.6

1.5

1.4

1.4

1.4

1.5

1.5

1.7

1.8

2.4

1.8

1.7

1.7

1.7

1.7

1.5

1.3

1.3

1.3

1.3

1.3

1.3

1.2

1.2

1.1

1.2

1.2

1.2

1.2

1.2

43.6

1.45

86

July

1.1

17T

1.1

1.1

1;0

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

 8

.8

28.7

0.93

57

Aug.

0.8

.8

.8

.8

.8

.9

.9

.9

.8

.8

.8

.7

77

.7

.8

.7

.7

.7

.8

.9

.8

.8

.8

.8

.8

.8

.8

.8

.9

1.0

TTff

25.1

0.81

50

Sept.

-7s 0.9

.8

.8

.8

.7

.7

.7

.8

.8

.7

.7

.8

.8

.8

.9

.9

.9

.9

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

23.0

0.77

46

Calendar year 1956: Max 65 Min 0.6 Mean 1.74 Ac-ft 1,260

Water year 1956-57: Max 40 Mln 0.7 Mean 1.75 Ac-ft 1,270
80 SANTA ANA RIVER BASIN

Santa Ana River at Hamner Avenue, near Corona, Calif.

Location.--Lat 33°56'43", long 117°33'30", in NE^NE^NE^- sec. 1, T. 3 S., R. 7 W. , on 

left bank 300 ft downstream from Hamner Avenue Bridge, 4.8 miles north of Corona, and 

5 miles upstream from Temescal Creek.

Drainage area. 963 sq mi.

Records available.--May 1930 to November 1957 (irrigation seasons only).

Gage.--Water-stage recorder. Altitude of gage is 570 ft (from topographic map). Prior 

To May 1, 1946, water-stage recorder at several sites within 1 mile of the present 

site at various datums.

Remarks. Records good. Discharge measurements generally made six times a month. Flow 

partly regulated by Big Bear Lake (see p. 54). Natural flow is affected by groundwater withdrawals, diversions for irrigation, and return flow from irrigated areas. 

Flow past station includes Colorado River water released to the Santa Ana River by 

the Metropolitan Water District of Southern California (see Santa Ana River at Riverside Narrows, near Arlington, Calif.).

Cooperation. Nineteen discharge measurements furnished by Orange County Flood Control 

District.

Discharge, in cubic feet per second, May to December 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Jan.

t45

Feb.

t38

-

- --- 

Mar.

t46

Calendar year : Max

Apr.

_

-

-

t30

_

-

-

-

-

_

-

-

_

-

_

-

..

.

-

-

-

-

-

_

-

-

-

t30

_

 -

-

May

27

29

26

27

25

27

27

24

56

27

38

51

36

34

35

36

35

38

60

4T

51

47

42

42

39

36

34

35

34

30

29

1,094

35.3

2,170

June

30

28

26

26

27

28

27

26

26

32.

30

25

26

28

27

27

24

23

23

24

24

26

23

23

25

23

27

27

27

27

785

26.2

1,560

July

27

27

27

25

25

25

24

24

23

23

24

25

24

23

23

23

23

23

23

21

20

19

18

20

22

23

23

22

20

20

20

709

22.9

1,410

Aug.

21

22

22

23

24

26

25

24

25

24

22

24

23

24

19

21

22

20

20

20

18

19

21

21

20

21

21

20

21

20

22

675

21.8

1,340

Sept.

22

52

23

24

23

23

24

24

23

23

23

23

23

25

24

25

23

24

24

24

24

24

23

24

23

23

23

24

24

24

705

23.5

1,400

Oct.

25

25

25

25

25

24

25

24

24

24

27

38

33

38

35

33

30

30

32

32

43

48

36

34

33

30

28

30

30

30

58_

974

31.4

1,930

Nov.

40

44

64

44

42

38

34

34

33

32

34

34

34

34

34

34

34

34

34

34

32

30

30

30

30

30

30

30

29

28_

1,044

34.8

2,070

Dec.

t32

Min Mean Ac-ft

The season : Max 64 Min 18 Mean - Ac-ft 11,880

t Result of discharge measurement.
SANTA ANA RIVER BASIN 81

Santa Ana River at Auburndale Bridge, near Corona, Calif.

Location. Lat 33°55 I 27", long 117°35 I 48", in La Sierra (Yorbra) Grant, on right bank 

50 ft upstream from Auburndale Bridge on River Street, 1.7 miles upstream from 

Temescal Creek, and 3.8 miles northwest of Corona, Riverside County.

Drainage area.--1.021 sq mi.

Records available. May 1930 to November 1957 (irrigation seasons only).

Gage. Water-stage recorder. Datum of gage is 501.36 ft above mean sea level, datum of 

T929 (levels by Orange County Flood Control District). Prior to May 1946, at various 

sites within 1,000 ft of the bridge and at different daturas.

Remarks. Records good. Discharge measurements generally made six times a month. Flow 

partly regulated by Big Bear Lake (see p. 54). The natural flow is affected by 

ground-water withdrawals, diversions for irrigation, and return flow from irrigated 

areas. Flow past station includes Colorado River water released to the Santa Ana 

River by Metropolitan Water District of Southern California (see Santa Ana River at 

Riverside Narrows, near Arlington). Water diverted into Durkee ditch, a quarter of 

a mile above station, bypasses station; discharge measurements of flow in ditch, in 

cubic feet per second, from April to November 1957 are as follows:

Date

Apr. 30 

May 7 

14 

21 

28 

June 3 

11 

18

Discharge

4.06 

3.90 

4.00 

4.24 

3.97 

3.57 

3.38 

2.69

Date

June 25 

July 2 

9 

16 

23 

30 

Aug. 6 

13

Discharge

2.49 

2.47 

1.97 

2.06 

2.14 

2.14 

1.98 

1.78

Date

Aug. 20 

27 

Sept. 3 

10 

17 

24 

Oct. 1 

8

Discharge

1.77 

1.93 

1.80 

2.09 

2.07 

2.05 

2.26 

2.25

Date

Oct . 15 

22 

29 

Nov. 5 

12 

19 

26

Discharge

2.66 

3.04 

3.24 

3.66 

3.84 

4.43 

3.99

Cooperation. Twenty discharge measurements furnished by Orange County Flood Control 

District.

Discharge, In cubic feet per second, May to December 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Jan.

t51

Feb.

t44

-

Mar.

t51

Calendar year : Max

Apr.

-

-

-

-

t36

.

-

-

-

-

.

-

-

-

-

.

-

-

-

-

.

-

-

-

-

-

-

-

_

t37

.

-

-

May

37

35

35

33

32

31

33

33

32

32

37

64

45

38

38

38

39

42

66

54

54

50

49

47

42

40

44

45

44

36

32

1,277

41.2

2,530

Min

June

35

36

35

35

33

33

32

33

31

35

35

28

28

30

30

28

27

30

31

30

32

32

31

31

30

31

33

33

36

35

959

32.0

1,900

July

36

33

32

31

33

33

32

32

32

31

31

31

31

28

27

26

26

25

26

26

25

24

24

25

25

28

27

27

26

25

24

882

28.5

1,750

Aug.

26

24

27

28

26

30

30

28

28

27

27

27

27

27

27

25

26

26

26

24

25

24

24

26

25

23

24

24

24

24

23

802

25.9

1,590

Sept.

23

23

25

25

25

25

25

25

26

27

25

27

27

28

26

28

27

26

27

26

27

26

26

26

25

26

27

26

26

24

775

25.8

1,540

Oct.

26

28

28

28

26

27

30

28

28

28

33

40

35

45

42

37

39

40

40

44

54

56

45

44

39

44

39

39

42

44

6j4

1,182

38.1

2,340

Nov.

50

50

73

58

49

47

47

45

45

49

49

47

47

49

49

50

47

50

50

49

44

42

45

39

40

37

37

37

' 36

36

1,393

46.4

2,760

Dec.

_

_

t40

-

-

_

-

-

-

-

.

-

t37

.

-

_

-

-

-

-

.

-

-

-

-

.

-

-

_

.

-

-

Mean Ac -ft

The season : Max 73 Min 23 lean - Ac-ft 14,410

t Result of discharge measurement.
82 SANTA ANA RIVER BASIN

Cucamonga Creek near Upland, Calif.

Location. Lat 34°10'26", long 117°37'5l", in SWiSE^NEj;- sec. 17, T. 1 N. , R. 7 W., on 

right bank 0.5 mile downstream from unnamed tributary on left and 5.3 miles north of 

Upland .

Drainage area. 10.1 sq mi.

Records available . December 1928 to September 1957.

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 2,360 ft (from 

topographic map). Prior to Jan. 17, 1935, and Apr. 15, 1935, to Nov. 11, 1936, at 

site 2,500 ft downstream at different datums. Jan. 18 to Apr. 14, 1935, at site 

1,200 ft downstream at different datum. Nov. 12, 1936, to Dec. 13, 1938, at site 

300 ft downstream at different datum.

Average discharge . 28 years (1929-57), 7.47 cfs (5,410 acre-ft per year); median of 

yearly mean discharge, 5.4 cfs (3,900 acre-ft per year).

Extremes. Maximum discharge during year, 144 cfs Jan. 13 (gage height, 3.19 ft); minimum daily, 0.9 cfs Oct. 1, July 13-17, 20, 23, 27, 28.

1928-57: Maximum discharge, 10,300 cfs Mar. 2, 1938, based on rainfall-runoff 

study; minimum daily, 0.6 cfs Aug. 17-21, 1951.

Remarks . Records good below 20 cfs and fair above. Discharge measurements generally 

made twice a month.

Revisions (water years). WSP 1041: 1944; WSP 1215: 1950.

Rating table, water year 1956-57 (gage height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used Nov. 3-15, Dec. 17-20, Jan. 13-23, Jan. 30 to

Feb. 12, Feb. 23 to Mar. 6, Mar. 10-14, Apr. 15-24, Aug. 30 to Sept. l)

1.2

1.3

1.4

0.7 

1.3 

2.1

1.5 

1.7 

1.9

3.2

6.5

11

2.2 

2.5

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2 

3

5

6

7

8

9

10

11

1Z

13

14

15

16

17 

18

19

20

Zl

22

Z3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.9

T7T

1.7

1.7

1.6

1.4

1.3

1.2

1.3

1.4

1.4

1.3

1.1

1.1

1.1 

1.1

1.1

1.1

1.1

1.1

1.4

1.4

1.4

1.4

1.4

1.5

1.6

1.6

1.6

41.2

1.33

BZ

Nov.

1.6 ITS'

1.6

1.4

1.3

1.2

IT?

1.2

1.2

1.3

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.2

1.2

41.0

1.37

81

Dec.

1.2 173

1.7

1.8

177

1.6

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4 

1.6

1.6

1.7

1.8

1.8

1.8

1.7

1.6

1.5

1.5

1.4

1.4

1.4

1.4

46.8

1.51

93

Jan.

1.4 171"

4.1

2.6

3.6

4.1

2.9

7.8

3.9

7.7

40

T?

8.5

6.5

5.0 

4.1

3.3

3.6

3.4

2.9

2.9

4.0

4.1

7.7

5.0

4.2

5.0

4.3

4.2

173.1

5.58

343

Feb.

4.2

4.1

3.9 

3.9

3.8

3.8

4.1

4.6

4.9

4.9

4.8

4.7

4.4

4.1

3.8

3.8 

3.8

3.6

3.6

3.5

2T~ 3.4

TO"

7.Z

5.9

5.6

7.1

-

146.5

5.23

291

Calendar year 1956: Max 125 Min 0.9

Mar.

11 -5.5

7.2 

6.5

5.2

4.1

3.6

5.6

4.6

4.1

3.9

3.8

3.6

3.5

6.8

4.5 

4.Z

3.9

3.9

3.9

3.8

3.6

3.5

3.2

3.1

3.0 3-70-

3.0

3.1

3.0

14Z.5

4.60

ZB3

Apr.

3.1

3.0 

3.0

3.1 

3.0

3.0

3.2

2.9

3.0

3.0

3.0

3.0

2.9

Z.9

3.0

3.Z

3.5 

4.1

375

3.6

3.6

3>5

3.2

3.1

3.0

2.8

2.6

2.3

2.2

2.1

91.4

3.05

181

May

2.0

2.1 

2.0

175

1.8

2.0

2.1

2.1

2.4

5.8

3.0

2.6

2.6

2.3

2.2

2.1 

2.4

8.4

ITT

3.8

3.5

3.8

3.5

3.0

2.6

2.5

2.5

2.5

Z.3

2.0

85.6

2.76

170

June

1.8

1.5 

1.4

T7I

1.5

1.6

1.8

2.0

Z.9

Z.O

1.8

1.9

Z.O

2.1

2.1

1.8 

1.4

1.4

1.5

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.5

51.1

1.70

101-

July

1.5

171

1.4

1.1

1.1

1.1

1.1

1.0

1.0

1.0

1.0

79" .9

>9

.9

.9 

1.0

1.0

.9

1.0

1.0

.9

1.0

1.1

1.0

.9

.9

1.0

1.1

1.1

32.2

1.04

64

Aug.

1.2

1.3

1.3

1.4

1.4

T7S- 1.5

1.5

1.4

1.4

1.4

1.4

1.2

1.2

1.2

1.2 

1.2

1.2

l.Z

1.2

1.2

1.2

1.2

1.2

1.2

1.2

l.Z

1.1

T7T

1.1

39.3

1.27

78

Sept.

1.1

1.1 

1.1

1.1

1.1

1.1

1.2

1.2

1.4

1.3

1.4

1.4

1.4

1.4

1.5

H1.5

1.5

1.3

1.1

1.1

i4T75

1.0

1.1

1.1

1.1

1.1

36.9

1.23

73

Mean 2.72 Ac-ft 1,970

Water year 1956-57: Max 40 Min 0.9 Mean 2.54 Ac-ft 1,840

Peak discharge (base, 80 cfs). Jan. 13 (3 a.m.) 144 cfs (3.19 ft).
SANTA ANA RIVER BASIN 83

San Jacinto River near San Jacinto, Calif.

Location. La t 33°44'05", long 116°49'45", in SE£ sec. 13, T. 5 S., R. IE., on downstream side of right pier of bridge on State Highway 74, 1 mile downstream from North 

Fork and 8.2 miles southeast of San Jacinto.

Drainage area. 140 sq mi.

Records available. October 1920 to September 1957. 

October 1948 to September 1957.

Combined river and diversions,

Gage. Water-stage recorder. Datum of gage is 1,982.75 ft above mean sea level (Corps 

of Engineers bench mark). Prior to Feb. 15, 1927, water-stage recorder at site about 

150 ft upstream at different datum. Feb. 15, 1927, to December 1929, staff gage at 

same site at different datum. December 1929 to Feb. 6, 1937, water-stage recorder at 

same site at different datum. Feb: 7, 1937, to Jan. 23, 1948, staff gage at same 

site at various datums.

Average discharge.--34 years (1921-25, 1927-57), 18.7 cfs (13,540 acre-ft per year); 

median of yearly mean discharges, 6.9 cfs (5,000 acre-ft per year). Average combined 

discharge, river, canals, and pipeline, 9 years (1948-57), 14.4 cfs (10,430 acre-ft 

per year).

Extremes.--Maximum discharge during year, 292 cfs Jan. 13 (gage height, 4.95 ft); no 

flow for several months.

1920-57: Maximum discharge, 45,000 cfs Feb. 16, 1927, on basis of slope-area 

determination of peak flow; no flow for several months of each year.

Remarks. Records good. Discharge measurements or observations of no flow generally 

made twice a month. Flow partly regulated by Hemet Reservoir (capacity, 13,400 acreft); contents, 325 acre-ft Sept. 30, 1957, representing net increase of 28 acre-ft 

for year. For records of combined daily discharge of San Jacinto River and diversions, see following page.

Cooperation.--Daily discharge of Fairview Land and Water. Co. 1 s pipeline and contents of 

Lake Hemet furnished by Lake Hemet Municipal Water District.

Revisions(water years). WSP 881: 1938.

Rating table, water year 1956-57 (gage height, In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 17-19, Feb. 12-23, 25-28, Apr. 25-27, May 23 to June 16)

2.71 0 3.0 1.1 3.3 6.5 3.8 40

2.8 .1 3.1 2.2 3.4 11 4.1 78

2.9 .4 3.2 4.0 3.5 16 4.5 160

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

 o

0

0

Calendar year 1956: Max 531

Jan.

0

0

 0

0

0

0

0

6.5

11

3.6

4.4

2.6

100

31

6.4

1.7

.1

0

0

0

0

0

0

0

0

1.0

1.2

1.0

1.0

.2

0

171.7

5.54

341

Feb.

0

0

0

0

0

0

0

0

4.2

10

4.7

2.2

0

0

0 .

0

0

0

0

0

0

0

6.8

~5.0 20

0

0

.8

-

53.7

1.92

107

Mar.

44

20

8.2

2.9

2.2

1.7

.8

.2

.4

4.6

1.6

.1

0

0

0

1.3

2.1

3.0

2.1

.8

.1

0

0

0

0

0

o

0

0

0

0

96.1

3.10

191

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

.7

1.7

1.2

.1

0

0

0

0

0

0

0

4.0

0.13

7.9

May

0

0

o

0

0

0

0

0

0

0

6.8

16

4.4

4.4

4.6

3.4

2.6

2.4

37

36

30

22

12

6.4

2.6

.7

0

0

0

o

0

191.3

6.17

379

June

0

0

0

0

0

0

0

0

0 

1.3

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

o

1.3

0.04

2.6

July

0

0

0

Aug.

0

0

o

Sept.

0

0

0

0

o

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.007

0.4

Mln 0 Mean 2.30 Ac-ft 1,670

Water year 1956-57: Max 10O Mln 0 Mean 1.42 Ac-ft 1,030

Peak discharge (base 

(4.40 ft).

100 cfs). Jan. 13 (10 a.m.) 292 cfs (4.95 ft); Mar. 1 (2 a.m.) 135 cfs

510529 O - 59 -7
84 SANTA ANA RIVER BASIN

San Jacinto River near San Jacinto, Calif. Continued

Combined discharge , in cubic feet per second, of San Jacinto River and diversions near San Jacinto, 

Calif., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

2Z

Z3

24

25

Z6

Z7

28

29

30

31

Total

Mean

Ac-ft

Oct.

Z.2

2.3

1.3

1.3

1.2

1.0

1.0

.7

.6

.5

.4

.6

.6

.5

.5

.3

0

0

0

0

0

0

0

0

0

0

0

.3

.6

. 6

.6

17.1

0.55

34

Nov.

0.6

.4

.3

.3

.6

.6

.5

.5

.5

.3

.3

.3

.3

.3

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

13.8

0.46

27

Dec.

0.5

.5

.5

.5

.5

1.5

1.2

1.0

.9

.8

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

20.8

0.67

41

Jan.

0.5

.5

.5

.5

.5

.6

.8

6.9

11

4.7

4.9

3.7

100

36

14

9.5

6.8

5.6

4.6

4.3

5.5

4.5

4.0

4.2

5.4

11

12

7.5

7.8

6.8

6.4

291.0

9.39

577

Feb.

6.8

7.1

6.6

6.3

5.7

6.0

5.8

6.6

16

28

22

20

15

12

10

9.1

8.4

7.7

7.5

6.9

6.6

6.1

14

28

16

12

10

11

-

317.2

11.3

629

Mar.

56

37

26

21

18

16

14

12

13

20

15

13

12

10

9.5

12

15

18

15

12

11

10

9.2

9.1

8.9

8.6

7.9

7.5

7.4

7.2

6.4

457.7

14.8

908

Apr.

7.0

6.6

6.2

6.3

5.8

5.7

5.7

5.6

5.5

5.5

5.1

4.9

4.8

4.6

77?

4.7

4.7

5.7

5.9

7.6

11

TT

10

10

10

9.2

5.4

7.5

7.2

6.8

200.7

6.69

398

May

6.6

6.4

6.3

6.1

5.9

5.9

6.8

7.0

6.5

7.5

19

30

18

17

18

18

17

18

54

49

47

40

30

25

23

21

19

18

16

16

15

593.0

19.1

1,180

June

14

13

12

11

11

10

9.9

9.8

9.6

L8

14

.12

10

9.2

8.7

8.2

7.5

6.8

6.4

6.0

5.8

5.5

5.3

4.8

4.5

4.1

3.7

3.4

3.4

3.3

250.9

8.36

498

July

2.9

2.8

2.3

2.1

2.1

1.9

1.9

1.8

1.6

1.8

1.3

2.0

1.6

1.4

1.1

2.9

6.0

7.4

8.1

8.0

7.9

6.0

5.8

7.2

7.2

7.3

7.3

5.3

3.4

3 2

124.5

4. 02

247

Aug.

5.5

6T9

7.1

6.9

6.9

6.9

6.9

6.9

6.7

6.7

6.7

6.7

6.7

6.4

6.2

6.4

6.5

6.7

6.9

6.9

6.7

6.5

6.5

6.5

6.5

6.4

6.2

6.2

6.4

6.4

6 .2

204.0

6.58

405

Sept.

5.9

5.9

5.5

5.2

5.5

5.9

5.9

5.7

5.5

5.5

5.5

5.7

5.7

5.7

5.9

6.0

6.0

6.0

5.8

5.5

5.0

5.2

5.3

5.5

5.3

5.3

5.2

5.0

1.7

OjS

159.3

5.31

316

Calendar year 1956: Max 543 Mln 0 Mean 6.16 Ac-ft 4,470

Water year 1956-57: Max 100 Min 0 Mean 7.26 Ac-ft 5,260

Bautista Creek near Hemet, Calif.

Location. La t 33°41'40", long 116°51'00", in NE^SW^ sec. 35, T. 5 S., R. IE., on left 

bank a quarter of a mile upstream from unnamed tributary, 6 miles upstream from mouth, 

and 8 miles southeast of Hemet.

Drainage area.--39.4 sq mi.

Records available. October 1947 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 2,250 ft (from topographic map).

Average discharge. 10 years, 0.50 cfs (362 acre-ft per year); median of yearly mean discharges , 0.01 cfs (7 acre-ft per year).

Extremes.--Maximum discharge during year, 3.6 cfs Jan. 13 (gage height, 2.01 ft); no flow 

for most of year.

1947-57: Maximum discharge, 1,170 cfs July 19, 1955 (gage height, 4.43 ft), from 

rating curve extended above 31 cfs on basis of slope-area determination of peak flow; 

no flow for most of each year.

Remarks. Records fair. Observation of no flow generally made once a month. One diversion above station for irrigation of about 15 acres.

Rating table, water year 1956-57 (gage height. In feet, 

and discharge, in cubic feet per second)

1.6

1.7

1.8 1.0

Discharge, In cubic feet per second, water year October 1956 to September 1957

Jan. 13. 

21.

Feb. 28. 

Mar. 1.

0.4 

.1 

.1

Mar. 16................ 0.1

Apr. 21................ .1

May 11................ .4

Month

Calendar year 1956. . . . 

Water year 1956-57....

Peak discharge (base, 20

Cfs-days

cfs) . No p

Maximum

27

.4

eak above b

Minimum

0 

0

ase.

Mean

.003

.02

.08 

.005

Runoff in 

acre-feet

1.0

.2

1.0

.2

1.0

56 

3.4

Note.--Flow occurred only on days listed above.
SANTA ANA RIVER BASIN 85

San Jacinto River near Elsinore, Calif.

Location. Lat 33°39'5l", long 117°17'35", in SE^SE^NE^ sec. 9, T. 6 S., R. 4 W., on

right bank 2 miles east of Elsinore and 2.1 miles downstream from Railroad Canyon Dam.

Drainage area. 717 sq mi.

Records available. January 1916 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,270 ft (from topographic map). Prior 

~~to Feb. 13, 1916, staff gage at site 0.75 mile downstream at different datum. Feb. 13, 

1916, to Oct. 27, 1921, staff gage at present site at different datum.

Average discharge.--30 years (1927-57), 10.8 cfs (7,820 acre-ft per year); median of 

yearly mean discharges, 0.1 cfs (72 acre-ft per year), since construction of Railroad 

Canyon Reservoir.

Extremes .- Maximum discharge during year, 13 cfs Jan. 14 (gage height, 2.82 ft); no flow 

except Jan. 13-15.

1916-57: Maximum discharge, 16,000 cfs Feb. 17, 1927 (gage height, 11.8 ft), from 

rating curve extended above 2,000 cfs on basis of slope-area determination of peak 

flow; no flow for several months in most years.

Remarks. Records poor. Storage and diversion above station for irrigation. Flow partly 

regulated by Hemet Reservoir (capacity, 13,400 acre-ft) and regulated since 1928 by 

Railroad Canyon Reservoir (capacity, 12,000 acre-ft) 2.1 miles above station.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

( )

(*)

0

0

0

Nov.

(*)

0

0

0

Dec.

(*)

0

0

0

Jan.

0o"

0

0

0

0

0

0

0

0

0

0

*.8

5.8

3.4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

10.0

0.32

20

Feb.

(*)

( )

0

0

0

Mar.

(*)

( )

0

0

0

Apr.

0

0

0

May

0

0

0

June

(*)

0

0

0

July

(*)

0

0

0

Aug.

( )

0

0

0

Sept.

0

0

0

Adjusted for flow diverted from Railroad Canyon Reservoir by Temescal Water Co.

Mean 

Cfsm 

In. 

Ac-ft 000 20 OOOO 137 198 237 114

Observed

Calendar year 1956: Max 0 Min 0 Mean 0 Ac-ft 0 

Water year 1956-57: Max 5.8 Min 0 Mean 0.03 Ac-ft 20

Adjusted

Calendar year 1956: Mean 0.84 Cfsm In. Ac-ft 611 

Water year 1956-57: Mean 0.98 Cfsm In. Ac-ft 706

Discharge measurement or observation of no flow made on this day.
86 SANTA ANA RIVER BASIN

Elsinore Lake at Elsinore, Calif.

Location. Lat 33 0 40'35" , long 117 0 22'05", in La Laguna Grant, on northwest shore at 

Elsinore, Riverside County.

Records available. December 1915 to September 1957.

Gage. Staff gage read occasionally. Datum of gage is 1,230.0 ft above mean sea level. 

Sage heights have been reduced to elevations above mean sea level. Prior to Feb. 13, 

1951, staff gage at numerous sites on northeast shore at various datums.

Extremes. Maximum elevation observed during year, 1,223.2 ft Feb. 5; lake probably dry 

Oct. 1 to Jan. 31 and Apr. 1 to Sept. 30, on basis of rainfall records and hydrographer's notes'.

1915-57: Maximum elevation observed, 1,265.6 ft Mar. 20-25, 1916, during period 

of overflow; maximum observed since cessation of overflow in June 1917, 1,259.8 ft 

May 11-20, 1922; lake dry during parts of water years 1951, 1954-57.

Remarks. Elsinore Lake overflows into Temescal Creek, which is its outlet, only during 

and after years of unusually heavy rainfall. Elevation at which lake is dry, about 

1,223.0 ft. There has been no outflow since June 30, 1917. History of lake prior to 

1916 is published in WSP 441. Summary of high stages that have occurred from 1916 to 

1942 is contained in WSP 961.

Elevation, In feet, water year October 1956 to September 1957 

Feb.

Field estimate

Temescal Creek near Corona, Calif.

Location. Lat 33"50'29", long 117°30 I 37", in El Sobrante de San Jacinto Grant, on left 

bank 0.2 mile downstream from unnamed tributary and 3.8 miles (revised) southeast of 

Corona, Riverside County.

Records available. January 1929 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 730 ft (from topographic map). Prior 

to Feb. 11, 1943, at datum 6.00 ft higher.

Average discharge.--28 years, 3.74 cfs (2,710 acre-ft per year); median of yearly mean 

discharges, 0.04 cfs (29 acre-ft per year).

Extremes. Maximum discharge during year, 15 cfs Mar. 1 (gage height, 6.01 ft); no flow 

for most of year.

1929-57: Maximum discharge, 14,900 cfs Mar. 2, 1938, result of slope-area measurement of peak flow; no flow for parts of most years.

Remarks. Records fair. Discharge measurements or observations of no flow generally made 

once a month. Many diversions above station. Flow regulated by Lake Elsinore and 

several storage reservoirs above station. No water wasted from Lake Mathews during 

year.

Discharge, In cubic feet per second, water year Octobe 

Jan. 5.............

1956 to September 1957

Month

Water year 1956-57. ........................

Cfs-days

2.2

-

Maximum

0.9

.9

Minimum

0

0

Mean

0.07

.05

.008

Runoff In 

acre-feet

4.4

35

5.8

Note.--Plow occurred only on days listed above.
SANTA ANA RIVER BASIN 87

San Antonio Creek near Claremont, Calif.

Location. La t 34°12'58", long 117°40'04", in SE^SW^NWi sec. 36, T. 2 N., R. 8 W., on 

right bank 0.5 mile upstream from Southern California Edison Co.'s Sierra powerplant 

and 8.8 miles northeast of Claremont.

Drainage area. 16.9 sq mi.

Records available.--March 1901 to September 1957. Prior to January 1917, published as 

"near Upland."

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 3,400 ft (from 

topographic map). Prior to Jan. 25, 1917, hook gage and rectangular weir in powerplant 

tailrace half a mile downstream at different datum; flow in natural channel estimated. 

Jan. 25, 1917, to Jan. 11, 1939, water-stage recorder at site 50 ft downstream at 

different datum.

Average discharge. 40 years (1917-57), 9.12 cfs (6,600 acre-ft per year); median of 

yearly mean discharges, 2.7 cfs (2,000 acre-ft per year). Average combined discharge 

of creek and conduit, 40 years (1917-57), 21.5 cfs (15,570 acre-ft per year); median of 

combined yearly mean discharges, 15 cfs (10,900 acre-ft per year),

Extremes. Maximum discharge during year, 94 cfs Jan. 13.(gage height, 2.47 ft); minimum 

daily, 0.1 cfs on Sept. 24, 25.

1917-57: Maximum discharge, 21,400 cfs Mar. 2, 1938, by slope-area and rainfallrunoff studies; no flow Aug. 24-27, 31, Sept. 1, Oct. 17-21, 1951.

Remarks. Records good except those above 15 cfs, which are fair. Discharge measurements 

generally made four times a month. For records of combined discharge of San Antonio 

Creek and Southern California Edison Co.'s conduit, which diverts above station, see 

following page.

Cooperation. Twenty-three discharge measurements furnished by Los Angeles County Flood 

Control District. Gage-height record for conduit,furnished by Southern California 

Edison Co.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 13-15)

0.62 

.7 

.8

0.1 

.3 

.8

0.9 1.7

1.1 4.4

1.4 10

1.6 16

1.7 19

1.9 29

Discharge, In cubic feet per second, water year October 1956 to Septerob

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Aoft

Oct.

~7S 0.3

.3

.4

71

.4 

.4

.4

.4

.3

.4

.4

.4

.4

.4

.3

.4

.3

,3

.2

.2

.2

.3

.3

.3

.3

.3

.4

.4

.4

.4

10.6

0.34

21

Nov.

0.4

.4

.4

.4

.4

.3 

.3

.3

.3

.3

.2

72

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

75

.5

10.9

0.36

22

Dec.

~X0.5

.4

.4

.5

ti

.3

.3

,3

.4

.4

.4

.4

,4

,3

,3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

,4

.4

.4

.4

12.0

0.39

.24

Jan.

0.4

.4

.4

.5

1.2

.8 

.9

,8

.7

1.6

.6

1.8

~4.5 25

1.8

1.3

1.0

1.0

.9

.9

.8

.8

.8

.8

.8

1.4

1.1

1.0

1.0

Q

.8

56.6

1.83

112

Feb.

0.9

,9

.9

.9

-li

.8 

.8

1.5

2

2

2

1.7

1.6

1.3

1.2

1,2

1:2

1.0

1.0

1.0

1.0

1.0

7.6

175

1.8

1.8

1.6

2.1

-

43.5

1.55

86

Mar.

1.9

375

1.4

1.4

1,3

1.2 

1.1

1.1

1.4

1.4

1.2

1.1

1,1

1,0

1.1

1.4

1.2

1.2

1.2

1.1

1.0

1.0

1.0

.9

.9

.8

.8

.8-4

.0

.8

34,8

1.12

69

Apr.

0.8

.8

.8

.9

.8

.8 

.8

.8

.8

,8

.8

.7

.7

.7

JL

.7

.9

1.1

175

1.0

1.1

1.0

1.0

.9

.8

.8

.8

.8

.7

.7

24.9

0.83

49

May

0.6

.6

.6

.5

75

.5 

.5

.6

.6

.7

1.1

1.0

1.0

.9

.7

.7

.6

.6

1.4

T7T

1.1

1.0

1.0

.9

.7

,7

.7

,7

.8

1.0

.9

24.3

0.78

48

June

0.7

.7

.6

.6

.6

.6 

.6

.6

.7

.8

'.1

.7

.7

.7

.7

.7

.7

.6

.6

.5

.5

.5

.4

.4

-i3_

.4

.4

.4

.4

.4

17.2

0.57

34

July

0.4 "71

.3

0

tt

.2 

.2

,2

.3

.4

.4

.4

.4

.3

,3

.3

,4

.4

.4

.4

.4

,4

.4

.4

.4

,4

.3

.3

.3

.3

.3

10.4

0.34

21

Aug.

**

.3

.3

.3

.3

I!

.4

.3

,3

.3

,3

.3

.3

.5

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

10.4

0.34

21

Sept.

0.3

.3

.2

.2

.2

.2 

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3 a

.2

.2

.2

7*

.2

.2

.2

,2

.2

7.3

0.24'14

Calendar year 1956: Max 18 Mln 0.2 Mean 0.72 Ao-ft 527

Water year 1956-57: Max 25 Mln 0.1 Mean 0.72 Ac-ft 521

Peak discharge (base, 10 cfs) 

(2.05 ft) .

 Jan. 13 (3:30 a.m.) 94 cfs (2.47 ft)j Feb. 23 (8 a.m.) 40 ofs
SANTA ANA RIVER BASIN

San Antonio Creek near Claremont, Calif.--Continued

Combined discharge, In cubic feet per second, of San Antonio Creek and Southern California Edison 

Co.'s conduit near Claremont, Calif., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

20

21

22

-3

24

Z5

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

6.9

6.8

6.8

7.1

T3

7.1

7.0

6.8

6.8

6.8

6.8

6.8

6.8

6.6

6.6

6.5

6.6

6.5

6.5

6.4

6.4

6.4

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6 .5

6 .5

206.6

6.66

410

Nov.

6.5

6.5

6.5

6.5

6.6

6.5

6.5

6.2

6.2

5.9

6.1

6.1

6.2

6.2

6.2

6.2

6.2

6.3

6.3

6.3

6.0

6.3

6.3

6.3

6.3

6.3

6.3

6.4

6.4

6.4

189.0

6.30

375

Dec.

6.4

6.4

6.3

STT

6.6

6.4

6.4

6.4

6.4

6.4

6.5

6.5

6.5

6.5

6.5

6.4

6.4

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

200.3

6.46

397

Jan.

6.5

F^

6.5

6.6

7.9

7.0

7.2

7.1

7.0

8.5

7.1

9.3

31

14

11

10

9.7

9.6

9.3

9.7

9.6

9.7

10

10

10

12

11

11

12

12

12

310.8

10.0

616

Feb.

12

12

11

11

11

11

11

12

12

12

12

12

12

11

11

12

13

13

13

14

14

15

26

TT

17

18

17

18

381

13.6

756

Mar.

18

Iff

17

17

17

17

17

17

18

17

17

17

17

17

17

18

17

17

17

16

16

16

16

16

15

15

15

15

15

15

15

512

16.5

1,020

Apr.

15

Iff

15

15

15

15

14

14

14

14

14

14

14

14

14

13

TT

14

13

13

14

13

13

13

13

13

13

13

13

13

414

13.8

821

May

13

13

13

12

TS

12

12

13

13

13

12

12

12

13

12

13

13

13

14 TJ

13

13

13

13

13

14

14

14

14

13

14

401

12.9

795

June

14

14

14

14

14

14

14

14

14

15

14

14

14

14

14

14

14

14

13

12

12

12

12

12

12

12

12

12

12

11

397

13.2

787

July

11

TT

11

11

.11

11

11

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

9.7

10

9.6

9.3

T3

9 3 9)3

313.5

10.1

622

Aug.

9.3

9.3

9.3

9.3

9.3

9.3

9.4

^T

9.1

9.0

9.0

8.7

8.7

8.7

8.7

8.7

8.7

8.7

8.8

8.8

8.8

8.8

8.4

8.4

8.4

8.4

8.4

84

F^

8 .3

8.3

272.7

8.80

541

Sept.

8.3

?^

8.2

8.2

8.2

8.2

7.9

7.9

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.0

8.1

8.0

7.6

7.6

7.6

7.5

T^

7.6

7.6

7.6

7.6

7.6

.

237.1

7.90

470

Calendar year 1956; Max 29 Mln 0.6 Mean 9.16 Ac-ft 6,650

Water year 1956-57: Max 31 Mln 5.9 Mean 10.5 Ac-ft 7,610
SANTA ANA RIVER BASIN 89

Santa Ana River below Prado Dam, Calif.

Location. La t 33°53'00", long 117°38 I 40", in La Sierra Grant, on left bank of outlet 

channel, 2,500 ft downstream from axis of Prado Dam E.nd 4.5 miles west of Corona, 

Riverside County.

Drainage area. 1.462 sq mi.

Records available. May 1930 to November 1939 (irrigation seasons only), March 1940 to

 September 1957. Published as "at Santa Pe Railroad Bridge, near Prado" May 1930 to 

November 1939, and as "below Prado Dam, near Prado" March 1940 to September 1950.

Gage. Water-stage recorder and concrete control. Datum of gage is approximately 449 ft 

"sibove mean sea level (Corps of Engineers survey). Prior to Mar. 18, 1940, water-stage 

recorder at about same site at various datums.

Extremes. Maximum discharge during year, 612 cfs Jan. 13 (gage height, 3.66 ft); minimum

 daily, 20 cfs July 29, 31, Aug. 1, Sept. 6.

1940-57: Maximum discharge, 2,260 cfs Dec. 24, 1940 (gage height, 3.20 ft); minimum daily, that of July 29, 31, Aug. 1, Sept. 6, 1957.

Remarks. Records good. Discharge measurements generally made six times a month. Plow

 regulated by Prado Reservoir (capacity, 222,800 acre-ft) and Big Bear Lake (see p. 54). 

Plow past station during part of the year includes Colorado River water released to 

the Santa Ana River (see Santa Ana River at Riverside Narrows). Natural flow of stream 

affected by extensive ground-water withdrawals, diversion for irrigation, and return 

flow from irrigated areas. Santa Ana River Development Co. pumps water from wells 

above Prado Reservoir into conduit which passes through dam and is released to river 

immediately downstream from gage.

Cooperation. Thirty-seven discharge measurements and records of bypass flow were furnished by Orange County Flood Control District.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

(t)

Oct.

182

188

191

194

1ST

194

194

194

194

194

186

144

109

109

101

61

57

55

51

51

50

50

48

48

48

48

48

48

48

48

46

3.370

109

6,680

402

Nov.

44

43

43

43

43

43

41

4T

41

43

43

43

43

44

43

41

43

43

43

43

41

41

43

44

44

44

46

15

46

46

1,295

43.2

2,570

381

Dec.

48

50

48

48

50

51

45

48

43

14

46

44

46

44

44

44

44

44

44

44

46

46

48

44

44

44

44

44

44

48

46

1,418

45.7

2,810

377

Jan.

48

46

45

50

80

64

62

100

66

72

72

64

379

26-ff

109

87

74

64

66

66

76

70

70

76

78

98

100

91

170

136

98

2,948

95.1

5,850

54

Feb.

87

87

87

87

83

85

83

81

81

76

72

70

TS

70

72

72

74.

70

72

74

74

7O

132

125

81

78

76

85

_

-

2,275

81.2

4,510

0

Mar.

336

155

105

89

83

81

81

81

87

123

96

83

83

83

83

101

98

74

74

76

72

74

72

68

TO

69

70

72

68

68

70

2,816

90.8

5,590

0

Apr.

70

85

64

62

62

62

62

62

62

62

64

66

66

61

61

61

59

75

76

76

~55 139

83

81

81

74

72

70

62

59

2,138

71.3

4,240

0

May

59

61

57

57

5_5

55

55

55

55

57

66

91

72

66

61

62

61

59

71

86

76

74

68

68

61

57

59

57

57

57

57

1,952

63.0

3,870

0

June

55

55

51

53

53

53

55

53

51

___.

59

51

55

51

50

48

38

36

35

36

41

40

43

38

41

41

43

46

46

48

1,425

47.5

2,830

0

July

44

48

43

41

36

40

36

36

36

35

36

36

36

35

35

32

34

36

34

31

29

25

26

25

25

26

26

25

20

24 

20

1,011

32.6

2,010

629

Aug.

20

25

24

24

24

29

24

24

22

22

25

24

25

21

25

21

29

26

31

29

28

26

28

25

25

22

25

22

24

24

26

769

24.8

1,530

466

Sept.

26

25

26

24

24

20

22

22

26

29

24

26

31

28

34

32

29

29

29

31

34

31

32

29

32

29

34

32

31

34

855

28.5

1,700

449

Adjusted Tor flow pumped from basin above Prado Dam

Mean

Cfsm

In.

Ac-ft 7,080 2,950 3,190 5,900 4,510 5,590 4,240 3,870 2,830 2,640 2,000 2,150

Calendar year 1956: 

Water year 1956-57:

Max 

Max

1,000 

379

Mln 25 

Mln 20

Mean 96.6 

Mean 61.0

Ac -ft 

Ac -ft

70,140 

44,190

Adjusted

Calendar year 1956: 

Water year 1956-57:

Mean 

Mean

100 

64.8

Cfsm 

Cfsm

In. 

In.

Ac -ft 

Ac -ft

72,780 

46,950

t Acre-feet pumped from basin above Prado Dam, which Is released to the river below the gage.
90 SANTA ANA RIVER BASIN

Santa Ana River at county line, below Prado Dam, Calif.

Location. Lat 33°52'14", long 117°40'17", in NW£ sec. 36, T. 3 S., R. 8 W., on right bank 

175 ft (revised) upstream from Riverside-Orange county line, 2.9 miles downstream from 

Prado Dam, and 6.1 miles west of Corona.

Records available. January 1919 to November 1940, May 1941 to November 1942 and May 1945 

to November 1951 (irrigation seasons only), May 1952 to September 1957. Published as 

"near Prado" 1919-42, 1945-50.

Gage. Water-stage recorder. Datum of gage is 407.34 ft above mean sea level, unadjusted. 

Prior to Mar. 17, 1927, at site 500 ft downstream at datum 2.39 ft higher. Mar. 17, 

1927, to Mar. 29, 1938, at site 500 ft downstream at datum 1.11 ft lower. Mar. 30, 

1938, to May 30, 1946, at site 45 ft upstream at datum 1.00 ft higher. May 31, 1946, 

to Nov. 13, 1950, at site 45 ft upstream at same datum.

Extremes. Maximum discharge during year, 726 cfs Jan. 13 (gage height, 6.15 ft); minimum daily, 24 cfs July 31.

1919-40, 1952-57: Maximum discharge, 100,000 cfs (estimated) Mar. 3, 1938 (gage 

height, 17.3 ft, from floodmarks in gage well, site and datum then in use); minimum 

daily, that of July 31, 1957.

Remarks. Records good. Discharge measurements generally made six times a month. Plow 

regulated by Prado Reservoir (capacity, 222,800 acre-ft) and Big Bear Lake (see p. 54). 

Normal flow is affected by ground-water withdrawals, diversions for irrigation, return 

flow from irrigated areas, and release of Colorado River water to Santa Ana River by 

Metropolitan Water District of Southern California (see Santa Ana River at Riverside 

Harrows).

Cooperation. Forty-two discharge measurements furnished by Orange County Flood Control 

District.

Revisions (water years). WSP 881: 1938.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

181

179

181

187

191

191

191

191

191

191

189

158

114

107

106

70

60

58

54

53

52

52

52

50- 50

50

52

54

54

SO

50

3,409

110

6,760

Nov.

19" 49

49

49

49

48

47

44

46 '47

49

48

48

48

46

46

47

48

47

43

43

44

46

46

46

46

46

47

46

46

1,403

46.8

2,780

Dec.

48

49

49

48

49

54

56

53

53

57

58

54

50

47

IS

48

50

53

53

52

52

52

49

50

49

48

48

47

47

48

48

1,567

50.5

3,110

Jan.

48

48

47

IS

77

63

53

99

65

70

74

65

4iS 555

124

89

67

63

61

68

83

72

71

75

76

99

71

67

163

159

103

3,070

99.0

6,090

Feb.

90

88

84

83

83

82

82

82

82

78

78

76

76

75

75

72

72

71

70

i§

68

68

122

i£l

Tff

79

76

84

2,299

82.1

4,560

Mar.

352

155

90

79

76

75

75

75

76

120

90

82

83

82

82

97

108

82

79

79

76

70

65

63

63

61

61

61

60

W

60

2,747

88.6

5,450

Apr.

60

78

56

55

57

57

57

57

57

57

60

61

61

60

60

57

58

79

83

78

154

TT

76

75

74

74

70

68

61

58

2,056

68.5

4,080

May

60

57

56

56

56

53'

54

52

52

56

61

98

55

60

58

56

54

56

64

95

71

74

65

64

60

57

57

53

50

57

53

1,879

60.6

3,730

June

53

55

49

47

46

46

44

43

42

43

49

46

46

50

49

48

41

40

37

38

40

41

38

36

3±

39

39

39

40

41

1,297

43.2

2,570

July

41

42

47

48

48

50

50

48

48

47

47

48

49

44

4?

42

42

40

39

38

38

33

32

31

30

30

31

31

28

26

24

1,234

39.8

2,450

Aug.

26

27

32

32

34

36

37

55

34

33

34

33

31

31

30

27

27

28

28

28

28

27

26

26

31

33

34

31

30

30

29

949

30.6

1,880

Sept.

30

29

2§- 28

29

28

30

33

36

39

37

36

34

34

36

36

31

31

32

33

34

36

32

32

31

29

30

32

34

32

973

32.4

1,930

Calendar year 1956: Max 1,030 Mln 29 Mean 99.1 Ac-ft 71,950

Water year 1956-57: Max 419 Mln 24 Mean 62.7 Ac-ft 45,390
SANTA ANA RIVER BASIN 91

Santiago Creek at Santiago Dam, near Villa Park, Calif.

Location. Lat 33°47'10", long 117°43'33", near west corner of lot 70 of Lomas de 

Santiago Grant, on upstream face near left end of Santiago mm, 0.3 mile upstream 

from Fremont Canyon and 5.7 miles southeast of Villa park, Orange County.

Drainage area. 63.2 sq mi (revised).

Records available . October 1931 to September 1957.

Gage. Staff gage read on last day*of each month. Datum of gage is at mean sea level.

Average discharge.--26 years, 12,570 acre-ft per year (17.4 cfs); median of yearly runoff, 

7,500 acre-ft (10 cfs).

Remarks. Records of inflow represent all water reaching Santiago Reservoir, including 

rainfall on the reservoir,'computed on basis of records of storage, draft, spill, 

waste, leakage, evaporation, and supplemental water from Colorado River delivered 

through aqueduct of Metropolitan'Water District of Southern California. This earthfill dam was completed in December 1931. Capacity and area ratings for the reservoir 

are dated December 1930. Capacity of reservoir at spillway level (gage height, 

790.0 ft), 25,000 acre-ft. Dead storage below lowest outlet included in these records. 

Water released to conduits as required for irrigation is called draft; water released 

back to creek is called waste. Spill, waste, and leakage, combined, represent all 

water passing down Santiago Creek from Santiago Dam. Minor diversions in basin above 

this reservoir.

Cooperation. Records of reservoir operation and draft furnished by Serrano and Carpenter 

Irrigation Districts and Irvine Co.

Revisions (water years). WSP 1121: 1932-36, 1938 (flood data).

Monthly net Inflow, water year October 1956 to September 1957

Month

December ............

Calendar year 1956

April. ..............

September. ..........

Water year 1956-57

Elevation 

(feet)t

Contents 

(acrefeet)

Santiago Reservoir

729.6 

725.7 

721.7 

716.5

-

737.3 

748.2 

756.3 

751.9 

760.2 

753.9 

746.3 

742.1 

735.4

-

2,840 

2,291 

1,812 

1,288

-

5,140 

"6,720 

9,182 

7,770 

10,558 

8,394 

6,225 

5,204 

3,774

-

Change 

In 

Contents 

(acreVeet)

-549 

-479 

-524

-990

+3,852 

+1,580 

+2,462 

-1,412 

+2,788 

-2,164 

-2,169 

-1,021 

-1,430

+934

Draft 

(acrefeet)

693 

531 

693

7,779

166 

29 

394 

1,644 

1,260 

2,447 

2,517 

1,225 

1,543

13,142

Evaporation 

(acrefeet)

58 

85 

57

1,086-

30 

36 

102 

111 

126 

212 

204 

166 

100

1,287

Spill, 

waste & 

leakage 

(acrefeet)

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Total 

Inflow 

(acrefeet)

202 

137 

226

7,875

4,048 

1,645 

2,958 

343 

4,174 

495 

552 

370 

213

15,363

Colorado 

River 

water 

Included 

(acre-feet)

0 

0 

0

0

3,015 

2,731 

3,108 

3,995 

0 

0 

0 

0 

0

12,849

Net 

Inflow 

(acre-feet)

202 

137 

226

7,875

+1,033 

-1,086 

-150 

-3,652 

4,174 

495 

552 

370 

213

2,514
92 SANTA ANA RIVER BASIN

Santiago Creek near Villa Park, Calif.

Location. Lat 33°49'22", long 117°46'33", in NE^-NE^SWi sec. 13, T. 4 S., R. 9 W. , on

right bank 1.4 miles downstream from Weir Canyon and 2.7 miles northeast of Villa park.

Drainage area . 83.8 sq mi.

Records available . June 1920 to September 1957.

Gage. Water-stage recorder and concrete cutoff -wall control. Altitude of gage is 420 ft 

(from topographic map) .

Extremes . Maximum discharge during year, 144 cfs Jan. 13 (gage height, 4.28 ft); no flow 

most of year.

1920-57: Maximum discharge, 11,000 cfs Feb. 16, 1927 (gage height, 8.4 ft), from 

rating curve extended above 140 cfs on basis of slope-area determination of peak flow; 

maximum gage height, 9.40 ft Jan. 16, 1952; no flow for several months each year.

Remarks . Records fair. Plow regulated by Santiago Reservoir (see preceding page). Diversions above station by Irvine Co. and Serrano and Carpenter Irrigation Districts.

Cooperation. One discharge measurement furnished by Orange County Flood Control District.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, Irt cubic feet per second)

2.84

2.9

3.0

3.1 2.6

3.2

3.3

3.4

3.5

5.7

10

16

24

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

(*)

(*)

0

0

0

Dec.

(*)

(*)

0

0

0

Calendar year 1956: Max 219

Jan.

0

0

0

0

4.7

.1

.2

.1

.1

*.l

.2

.2

 19

 .3

.1

.1

.1

.1

.2

.2

*.2

.1

.1

.1

.1

.3

.1

.1

*.4

!l

27.5

0.89

55

Feb.

0.

0

0

0

0

0

0

0

0

0

.1

*0

0

.1

0

0

0

0

0

0

0

0

.3

.1

0

*0

0

0.7

0.02

1.4

Min 0

Mar.

"Q0.6

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

.1

.1.1

.1

0

0

0

0

0

0

0

0

0

0

0

1.0

0.03

2.0

Apr.

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

_/7.

0

0

0

0

.1

.1

.1.1

*0

0

1.1

0 04

2.2

May

0

0

0

June

(*)

0

0

0

July

(*)

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

PI

0

0

0

Mean 0.87 Ac-ft 628

Water year 1956-57: Max 19 Min 0 Mean 0.08 Ac-ft 61

Discharge measurement or observation of no flow made on this day.
SANTA ANA RIVER BASIN 93

Santiago Creek at Santa Ana, Calif.

Location . Lat 33°46'09", long 117°52'54", in NEiSW^-NW^ sec. 1, T. 53., R. 10 W. , on 

left bank at end of Baker Street, Santa Ana, 2,400 ft upstream from mouth.

Records available. January 1929 to September 1957.

Gage . Water-stage recorder. Altitude of gage is 110 ft (from topographic map). Prior to 

June 22, 1948, at datum 0.96 ft higher.

Average discharge . 28 years, 5.29 cfs (3,830 acre-ft per year); median of yearly mean 

discharges, 5.8 cfs (580 acre-ft per year) .

Extremes. Maximum discharge during year, 85 cfs Feb. 23 (gage height, 3.35 ft); no flow 

most of year.

1929-57: Maximum discharge, 4,400 cfs Mar. 2, 1938 (gage height, 8.36 ft, present 

datum), from rating curve extended above 1,200 cfs by logarithmic plotting; maximum 

gage height, 9.85 ft Jan. 16, 1952; no flow most of each year.

Remarks. Records fair. Flow regulated by Santiago Reservoir (see p. 91). Diversions 

above station by Irvine Co. and Serrano and Carpenter Irrigation Districts. During 

each winter season, some water originally diverted from Santa Ana River by Santa Ana 

Valley Irrigation Co.'s canal is occasionally wasted into Santiago Creek 3 miles above 

station.

Cooperation. Two discharge measurements and one observation of no flow furnished by 

Orange County Flood Control District .

Discharge; In cubic feet per second, water- year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

(*)

(*)

0

o

0

Dec.

(*)

(*)

0

0

0

Jan.

0

0

0

o

*o

o

0

0

7.4

20_

19

.4

*16

0

0

0

0

O

0

.1

*0

0

0

0

0

1.8

0

0

*4.3

*0

0

69.0

2.23

137

Feb.

0

0

O

o

o

0

0

0

0

0

0

»o

o

o

0

0

0

0

o

o

0

0

*4.6

0

o

0

*0

.1

4.7

0.17

9.3

Mar.

0

0

O

0

O

0

O

0

0

o

0

0

0

*o

0

.1

o

0

0

0

o

0

0

o

0

0

0

0

0

0

0

0.1

0.003

0.2

Apr.

*0

0

o

0

0

0

0

0

0

0

0

o

0

0

*o

0

o

0

0

4.6

.5

0

0

0

0

0

0

0

«0

0

5.1

0.17

10

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

o .2

0

0

o

0

0

0

0

0

0

0.2

0.006

0.4

June

(*)

0

0

0

July

(*)

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 376 Min 0 Mean 1.78 Ac-ft 1,280

Water year 1956-57: Max 20 Min 0 Mean 0.22 Ac-ft 157

Discharge measurement or observation of no flow made on this day.
94 SANTA ANA RIVER BASIN

Santa Ana River at Santa Ana, Calif.

Location. Lat 33°44'56", long 117°54'30", in NW^SW^-SEi sec. 10, T. 5 S. ( R. 10 W. , on 

right pier of Fifth Street Bridge in Santa Ana, 1.8 miles downstream from Santiago 

Creek.

Records available. January 1923 to September 1957.

Gage . Water-stage recorder. Altitude of gage is 80 ft (from topographic map). Jan. 3, 

]T923, to Jan.- 24, 1929, at datum 1.00 ft higher. Jan. 25, 1929, to June 20, 1948, at 

site 450 ft upstream at different datum.

Average discharge. 17 years (1940-57), 16.2 cfs (11,730 acre-ft per year); median of 

yearly mean discharges, 1.9 cfs (1,400 acre-ft per year).

Extremes. --Maximum discharge during year, 149 cfs Feb. 33 (gage height, 2.48 ft); maximum 

gage height, 2.65 ft Jan. 13; no flow at times each month.

1923-57: Maximum discharge, 46,300 cfs Mar. 3, 1938 (gage height, 10.20 ft, former 

site and datum), on basis of slope-area determination of peak flow; no flow for 

several months each year.

Remarks. --Records poor. Natural flow affected by ground-water withdrawals, diversions, 

importation from Metropolitan Water District, municipal use, return flow from irrigation, and several storage reservoirs, including Prado flood-control reservoir (capacity, 222,800 acre-ft), and Big Bear Lake (see p . 54 ) . At times there are small 

amounts of return irrigation water from Santa Ana Valley Irrigation Co.'s drain 

1 ,500 ft upstream.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

TotaJ

Mean

Ac-ft

Oct.

0.3

*0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

0

0

0

0

0

0

.2

.4

.2

0

0

0

.3

.5

.4 

.5

3.1

0.10

6.1

Nov.

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.5

7?

.2

.4

.1

0

0

0

0

0

»0

0

1.6

0.05

3.2

Dec.

0

0

0

0

0

0

0

.1

.1

*0

0

0

0

0

0

0

.1

0

0

0

.1

.1

.1

.4

0

0

0

0

0

.1

*0

1.1

0.04

2.2

Calendar year 1956 : Max 446

Jan.

0

0

.1

.1

1.7

0

.7

0

0

.3

3.0

.9

21

.4

0

0

0

0

0

1.2

*.l

0

0

0

0

1.1

.1

0

2.1

*0 

0

32.8

1.06

65

Feb.

0

0

O

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

 12

0

0

»0

1.1

13.1

0.47

26

Mln 0

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

1.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

1.3

0.04

2.6

Apr.

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0o'

.4

0

JL1

3.0

0

0

0

0

0

0

0

»0

0

11.3

0.38

22

Mean 5.24

May

0.1

. 2

.3

0

0

.1

0

0

0

0

0

Q

0

.1

0

0

0

0

.3

.3

^

.1

0

0

0

0

0

0

0 

0

3.2

0.10

6.3

June

0

0

*0

0

0

.2

0

0

0

0

0

0

0

0

0

.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.5

0.02

1.0

July

0

o

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

72

.3

*0 

0

0.8

0.03

1.6

Aug.

0

0

0

.1.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0 

0

0.3

0.01

0.6

Sept.

(*)

0

0

0

Ac-ft 3,810

Water year 1956-57 : Max 21 Mln 0 Mean 0.19 Ac-ft 137

* Discharge measurement or observation of no flow made on this day.
SAN GABRIEL RIVER BASIN 95

East Fork San Gabriel River near Camp Bonita, Calif.

Location. Lat 34°14'08", long 117°48'16", in NE^NE^ sec. 27, T. 2 N. , R. 9 W. , on right 

bank 1,600 ft upstream from mouth of Graveyard Canyon, 2.5 miles upstream from confluence with West Pork, and 2.5 miles west of Camp Bonita.

Drainage area . 88.2 sq mi.

Records available. December 1932 to September 1957.

Gage . Water-stage recorder. Datum of gage is 1,567.04 ft above mean sea level (levels 

oy Los Angeles County Flood Control District). Prior to Dec. 10, 1938, at site 

0.6 mile downstream at different datum.

Average discharge . --24 years (1933-57), 69.5 cfs (50,320 acre-ft per year); median of 

yearly mean discharges , 46 cfs (33,300 acre-ft per year).

Extremes . --Maximum discharge during year, 1,060 cfs Jan. 13 (gage height, 10.6 ft); minimum daily , 10 cfs Sept. 7.

1932-57: Maximum discharge, 46,000 cfs Mar. 2, 1938, from rating curve extended 

above 21,300 cfs by logarithmic plotting (computed by Geological Survey); minimum, 

1.5 cfs Oct. 1, 1934.

eration. --Records 

y Geological Survey.

Cooperation. furnished by Los Angeles County Flood Control District and reviewed 

b

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

11 

12

12

13

15

15

14

14

13

12

13

13

13

13

13

13

13

12

12

1?

12

13

13

14

14

13

13

15

16

15

14

410

13.2

813

Calendar yea

Nov.

tt

13

14

14

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

390

13.0

774

Dec.

12 

T3

13

13

16

18

16

16

15

15

15

15

15

15

14

14

14

15

14

14

14

15

15

14

14

13

14

14

13

13

13

444

14.3

881

p 1956: Max 476

Jan.

8

13

14

23

18

18

21

18

34

26

39

479

134

84

70

56

52

47

46

43

40

38

39

37

46

41

39

40

39

38

1,658

53.5

3,290

Feb.

37 

38

40

40

40

39

39

48

91

93

93

84

79

75

72

70

66

63

62

60

58

56

128

89

85

85

81

93

-

1,904

68.0

3,780

Min 11

Mar.

~9T 108 

93

87

87

87

85

83

86

78

74

72

70

69

66

72

67

64

62

59

58

57

55

55

54

52

51

51

50

49

48

2,146

69.2

4,260

Apr.

47 

46

45

45

45

45

46

45

44

44

44

44

43

42

42

42

44

57

49

50

50

48

47

45

44

43

43

42

42

39

1,352

45.1

2,680

May

38

36

36

35

38

38

38

37

35

37

47

43

38

38

39

37

36

37

54

51

49

48

47

45

42

40

40

40

40

39

1,257

40.5

2,490

June

36 

35

35

33

32

32

33

34

35

39

35

32

32

33

33

30

28

27

27

28

28

28

27

27

27

25

24

24

25

24

908

30.3

1,800

July

24 

2T

24

23

22

21

20

20

20

20

20

20

20

20

19

19

19

19

19

18

17

17

18

17

16

16

16

16

16

15

16

591

19.1

1,170

Aug.

16 

16

19

19

20

20

19

16

17

16

15

15

14

14

14

14

15

15

15

16

16

16

15

14

15

13

13

13

13

15

14

480

15.5

952

Sept.

13 

13

12

12

11

11

10

11

12

13

13

13

13

13

13

13

13

15

15

15

13

12

12

12

11

11

12

13

13

12

375

12.5

744

Mean 30.1 Ac-ft 21,860

Water year 1956-57: Max 479 Min 10 Mean 32.6 Ac-ft 23,630
96 SAN GABRIEL RIVER BASIN

West Fork San Gabriel River at Camp Rincon, Calif.

Location. Lat 34°14'30", long 117°51'50", in SEv sec. 19, T. 2 -N. , R. 9 W., on right bank 

0.2 mile upstream from Camp Rincon, 0.5 mile downstream from North Fork, and 6 miles 

downstream from Cogswell Dam.

Drainage area. 102 sq mi.

Records available. October 1927 to September 1957.

Sage. Water-stage recorder. Datum of gage is 1,474.94 ft above mean sea level (levels by 

Los Angeles County Flood Control District). Prior to Nov. 19, 1930, at site 1^ miles 

downstream at different datum.

Average discharge . 30 years, 63.2 cfs (45,750 acre-ft per year); median of yearly mean 

discharges, 33 cfs (23,900 acre-ft per year).

Extremes. Maximum discharge during year, 1,670 cfs Jan. 13 (gage height, 11.14 ft); minimum daily, 3.5 cfs Nov. 29, 30.

1927-57: Maximum discharge, 34,000 cfs (estimated) Mar. 2, 1938; no flow at times 

in 1928-29.

Remarks . Flow regulated by Cogswell flood-control reservoir (capacity, 10,630 acre-ft).

Cooperation. Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Caler

Oct.

4.7

5.0

5.2

5.8

5.4

4.7

4.5

4.3

4.1

4.1

4.3

4.5

4.5

4.5

4.3

4.9

5.6

5.6

5.8

5.6

5.8

6.0

6.2

6.4

6.4

6.2

6.4

7.0

7.5

7.3

169.5

5.47

336

Nov.

7.5

7.3

7.1

7.1

7.3

7.3

7.1

7.1

25

115

~90 143

23

6.6

5.2

4.9

4.9

4.7

4.6

4.7

4.7

4.3

4.1

3.8

3.8

3.8

3.8

3.7

3.5

375

528.4

17.6

1,050

Dec.

3.7

378

4.0

4.0

4.5

6^0

5.4

5.0

4.7

4.5

4.5

4.7

4.7

4.7

4.5

4.5

4.5

4.3

4.5

4.5

4.5

4.7

4.7

4.7

4.7

4.5

4.5

4.5

4.5

4.7 

4.7

141.7

4.57

281

Jan.

4.7

4.7

4.7

5.0

16

11

8.6

9.6

8.6

15

13

38

~83 597

46

33

27

23

22

22

22

19

19

19

18

27

24

22

25

23 

22

1,231.9

39.7

2,440

Feb.

22

22

22

22

22

21

21

24

37

36

35

32

30

28

27

25

24

24

23

21

21

20

iBT

74

60

71

66

74

-

1,059

37.8

2,100

Mar.

8475"

70

66

64

62

60

50

39

36

32

30

29

28

27

31

28

26

25

23

22

22

21

21

20

19

19

19

19

19 

18

1,104

35.6

2,190

Apr.

18

16

16

16

16

16

16

15

14

15

16

18

19

19

18

18

20

29

2?

25

28

25

24

23

22

21

21

20

20

19

585

19.5

1,160

May

18

18

18

17

17

17

18

18

18

20

28

25

22

22

21

19

18

20

40

32

31

28

27

26

24

22

22

22

22

22 

21

693

22.4

1,370

June

19

18

17

16

15

15

16

17

18

21

20

18

18

17

17

16

14

13

13

13

13

13

13

12

12

12

12

12

11

IT

452

15.1

897

July

11

TT

10

9.5

9.4

9.6

9.4

9.2

9.1

9.1

8.8

8.6

8.4

8.1

8.1

8.1

.9

.9

.9

.9

.9

.9

.7

.5

.3

.O

.0

.0

.0

Iff

258.9

8.35

514

Aug.

7.0

7.3

7.3

7.0

7.0

7.0

7.0

7.0

7.0

6.8

6.6

6.6

6.6

6.4

6.4

6.3

6.2

5.9

5.9

6.4

6.6

6.4

5.9

5.9

5.7

5.9

6.2

6.8

10

11 

IT

215.1

6.94

427

Sept.

10

10

10

10

10

10

10

11

11

10

10

10

10

10

9.7

lT^ 7.2

11

12

TT

9.9 '9.4

9.0

9.1

9.3

9.4

9.4

9.3

9.2

9.2

297.1

9.90

589

idar year 1956: Max 504 Min 3.5 Mean 17.2 Ac-ft 12,490

Water year 1956-57: Max 597 Min 3.5 Mean 18.5 Ac-ft 13,350
SAN GABRIEL RIVER BASIN 97

San Gabriel River near Azusa, Calif.

Location. Lat 34°10'11", long 117°53'16", in SW^NW^-SWi sec. 13, T. IN., R. 10 W. , on 

right bank 1.1 miles downstream from Morris Dam and 2.7 miles northeast of Azusa.

Drainage area.--211 sq mi.

Records available. May 1894 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 867.59 ft above mean sea level (from Los 

A~ngeles County Flood Control District bench mark). Prior to August 1917, staff gages 

and August 1917 to Sept. 30, 1937, water-stage recorders at several sites from 

1? to 2 miles downstream at different datum. Oct. 1, 1937, to Feb. 21, 1938, waterstage recorder at site half a mile downstream at different datum. Feb. 22, 1938, to 

Feb. 7, 1939, water-stage recorder at site a quarter of a mile upstream at different 

datum. Datum lowered 4.35 ft May 9, 1950.

Average discharge.--62 years (1895-1957), 151 cfs (109,300 acre-ft per year), adjusted 

ror diversions, importations, regulation, and evaporation, in Cogswell, San Gabriel, 

and Morris Reservoirs; median of yearly mean adjusted discharges, 106 cfs (76,700 

acre-ft per year).

Extremes. Maximum discharge during year, 656 cfs Apr. 14 (gage height, 7.33 ft); no 

flow""for most of year.

1894-1957: Maximum discharge, 65,700 cfs Mar. 2, 1938, by computation of peak flow 

over Morris Dam; no flow for several months in most years.

Remarks. Records fair. Flow regulated by Cogswell and San G-abriel flood-control reservoirs (combined capacity, 54,500 acre-ft) and by Morris Reservoir (capacity, 35,000 

acre-ft). Azusa Canal diverts above high-water level of Morris Reservoir about 

5 miles (revised) above station. The Metropolitan Water District of Southern California reports a discharge of 386 acre-ft of Colorado River water into San Gabriel River 

below Morris Dam and above station during the 1957 water year. They also furnished 

records of adjusted runoff for San Gabriel River computed on basis of flow in river 

above Morris Reservoir plus Azusa Canal, adjusted for storage and evaporation in 

Cogswell, San Gabriel, and Morris Reservoirs, as shown in table below. These figures 

of runoff are equivalent to combined records of San Gabriel River and Southern California Edison Co.'s canal as published from 1894 to 1933.

Month

October. ..............

November ..............

Calendar year 1956. .

March. ................

Adjusted runoff 

(acre-feet)

968

995

1,140

35,500

6,840

Month

April

May...................

July.......... ........

August ................

September. ............

Adjusted runoff 

(acre-feet)

4,010

4,020

1,310

980

875

Cooperation. Two discharge measurements furnished by Los Angeles County Flood Control

District. 

Revisions (water years).--WSF 551: Drainage area. WSP 961: 1941.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

15.

*43

41

41

41

39

38

38

38

*38

*38

38

38

36 

36

36

36

36

*36

36

36

36

38

3B

38

39

39

39

39

39

41

1,190

38.4

2,360

Nov.

*42

42

42

41

41

41

39

39

42

45

39

33

*.2

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

486.2

16.2

964

Dec.

(*)

0

0

0

Calendar year 1956: Max 45

Jan.

(*)

(*)

0

0

0

Feb.

(*)

(*)

0

0

0

Mar.

(*)

0

0

0

Apr.

2.1

0

0

0

0

0

0

0

0

0

0

*181

*638

*644 

*650

650

60

0

0

0

0

0

0

0

0

0

0

0

0 

0

2,825.1

94.2

5,600

May

(*)

(*)

0

0

0

June

(*)

(*)

0

0

July

(*)

0

0

01 0

Aug.

0

0

0

0

*0

0

0

0

0

0

0

.7

15

0 

0

5.9

0

0

0

0

*0

0

0

0

0

0

0

0

0 

0

0

21.6

0.70

43

Sept.

0

0

20

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

20

0.67

40

Min 0 Mean 4.82 Ac-ft 3,500

Water year 1956-57: Max 650 Min 0 Mean 12.4 Ac-ft 9,010

Discharge measurement or observation of no flow made on this day.
98 SAN GABRIEL RIVER BASIN

Rogers Creek near Azusa, Calif.

Location.--Lat 34°09 I 55", long 117°54'20", in NW^NW^ sec. 23, T. IN., R. LO W., on left 

bank 0.5 mile upstream from mouth and 2.2 miles north of Azusa.

Drainage area. 6.4 sq mi, approximately.

Records available.--October 1917 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 800 ft (from topographic map).

Average discharge. 40 years, 2.88 cfs (2,090 acre-ft per year); median of yearly mean 

discharges, 1.5 cfs (1,100 acre-ft per year).

Extremes. Maximum discharge during year, 90 cfs Jan. 13 (gage height, 4.11 ft); no flow 

Oct. 1 to Jan. 7, June 18 to Sept. 30.

1917-57: Maximum discharge, about 2,600 cfs Apr. 7, 1926; no flow at times each 

year.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Discharge measurements or observations of no flow generally made twice a month. Diversion above station for irrigation of about 20 acres below station.

Cooperation. Seven discharge measurements furnished by Los Angeles County Flood Control 

District.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in'cubic feet per second)

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8 

3.0 

3.2 

3.5

2.9

4.4

9.4

17

34

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1956: Max 139

Jan.

0

0

0

0

0

0

0

.6

.3

2.0

1.2

1.2

29

5.0

3.0

2.5

al.5

al

a. 8

a. 6

a. 5

a. 5

.5

.6

.9

3.3

2.5

2.0

2.5

2.3 2.0

66.3

2.14

132

Feb.

1.6

1.4

1.2

1.0

.9

.9

.9

.8

.8

.7

.6

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

~5.6 17

4il

3.2

2.5

3.9

51.6

1.84

102

Mar.

5.2

579

3.2

2.6

2.3

1.8

1.5

1.3

2.5

3.2

2.2

2.0

1.8

1.7

1.5

2.1

1.8

1.7

1.5

1.3

1.3

1.2

1.1

1.1

1.1

1.0

1.0

.9

.&

78

.8

56.2

1.81

111

Apr.

0.7

.7

.7

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.6

.5

,6

.7

1.0

1.4

2.3

T74

1.2

1.0

.8

.7

.5

.5

.4

74

21.9

0.73

43

May

0.4

.4

.4

.3

73

.3

.3

.3

.3

.3

.7

.7

..5

.5

.5

.4

.4

.4

4.8

775

1.7

1.2

1.0

.8

.7

.5

.5

.5

.5

.4

.4

22.7

0.73

45

June

0.3

.2

.2

.1

.1

.1

.1

.2

.2

.4

.2

.2

.3

.3

.2

.1

0

T5

0

0

0

0

0

0

Q

0

0

0

0

3.7

0.12

7.3

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Min 0 Mean 1.06 Ac-ft 770

Water year 1956-57: Max 29 Min o Mean 0.61 Ac-ft 440

Peak discharge (base, 35 cfs). Jan. 13 (5 a.m.) 90 cfs (4.11 ft),- Feb. 23 (8 a.m.) 70 cfs (3.92 ft), 

a No gage-height record; discharge estimated on basis of records for Fish Creek near Duarte.
SAN GABRIEL RIVER BASIN 99

Pish Creek near Duarte, Calif.

Location.- -La t 34°10iOO", long 117°55'25", in SW-jSWvSWi sec. 15, T. 1 N., R. 10 ¥., on 

left bank 0.8 mile upstream from mouth of canyon and 3 miles northeast of Duarte.

Drainage area. --6. 5 sq mi, approximately.

Records available. --July to September 1916, July 1917 to September 1957.

Gage . - -Mater- stage recorder, and broad-crested weir since July 28, 1917. Altitude of 

gage is 1,000 ft (from topographic map). Prior to July 28, 1917, staff gage at same 

site at different datum. July 28, 1917, to Mar. 2, 1938, water-stage recorder at 

same site at different datum (destroyed by flood of Mar. 2, 1938). Mar. 3 to 

Dec. 7, 1938, staff gage at same site at different datum. Dec. 7, 1938, to Oct. 3, 

1951, water-stage recorder at same site at datum 1 ft higher.

Average discharge. --40 years (1917-57), 3.88 cfs (2,810 acre-ft per year); median of 

yearly mean discharges, 2.4 cfs (1,700 acre-ft per year).

Extremes. Maximum discharge during year, 108 cfs Jan. 13 (gage height, 3.03 ft); no flow 

For many days.

1916-57: Maximum discharge, about 2,180 cfs Apr. 4, 1925; no flow for periods in 

occasional years.

Remarks . --Records good. Discharge measurements generally made twice a month.

Cooperation. Nine discharge measurements were furnished by the Los Angeles County Flood 

Control District.

Revisions (water years) .--MSP 706: 1926.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used Apr. 13-17}

0.95

1.0

1.1

1.2

1.3

1.4 

2.6

1,5

1.7 

2.0 

2.3

21

37

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

.1

0

0

0

O

O

0

o

0

0

0

o

0

o

0

0

o

0

0

o

0

0

0

o

0

0

o

0

0.1

0.003

0.2

Nov.

o

0

0

Dec.

0

0

o

.1

.5

1.374"

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.3

7.7

0.25

15

Jan.

0.3

.3

.3

.4

2.3

.8

.6

.7

.5

2.9

1.3

2.1

33

3.0

1.4

.8

.6

.6

.6

.9

1.0

.8

.9

1.3

1.5

5.6

4.1

3.0

4.1

3.9

3.2

82.8

2.67

164

Feb.

2.6

2.2

.8

.7

.4

.4

.3

.3

.3

.2

1.1

1.0

1.0

.9

_ _§

.8

.8

.9

.9

1.0

1.0

1.0

~5.7 23

4.2

3.3

2.3

4.1

70.0

2.50

139

Mar.

5.8

F^

4.6

3.9

3.6

3.0

2.2

1.8

4.6

5.1

3.8

3.3

2.6

2.2

1.6

3.4

2.2

1.8

1.7

1.7

2.0

1.7

1.5

1.4

1.4

1.4

1.2

1.1

Ta

l.l

l.l

79.4

2.56

157

Apr.

1.1

1.0

1.1

1.3

1.3

1.4

1.3

1.1

1.2

1.1

1.4

1.4

1.1

1.1

.9

.8

1.3

2.5

1.3

2.1

2.7

1^8

1.6

1.2

1.0

.8

.8

.7

7T

.8

37.9

1.26

75

May

~^0.8

.9

.9

1.1

1.2

1.1

1.1

1.0

1.0

1.3

1.2

1.2

1.2

1.1

1.0

.9

1.0 -3.0 11

2.5

2.0

1.5

1.3

1.1

1.0

.9

1.0

1.1

1.0

.9

47.1

1.52

93

June

0.8

.7

.6

.5

.5

.5

.5

.7

.8

1.2

.8

.7

.7

.7

.8

.6

.4

.2

72

.2

.2

.3

.3

.2

.2

.3

.3

.3

.3

.2

14.7

0.49

29

July

 

0 21

O

0

.1

.1

0

0

o

0

0

0

0

0

o

0

0

o

0

0

o

o

0

o

0

0

1.1

O.O4

2.2

Aug.

O

O

0

Sept.

O

O

0

Calendar year 1955: Max 155 Mln O Mean 1.49 Ac-ft 1,O8O

Water year 1956-57: Max 33 Mln o Mean 0.93 Ac-ft 674

Peak discharge (base, 60 cfs). Jan. \2 (5 a.m.) 1O8 cfs (3.O3 ft); Feb. 23 (7:30 a.m.) 88 cfs 

(2.85 ft) .

510529 O - 59 - 8
100 SAN GABRIEL RIVER BASIN

San Gabriel River below Santa Fe Dam, near Baldwin Park, Calif.

Location. Lat 34°06'44", long 117°58'07", in SE^NEijSWir sec. 6, T. 1 S., R. 10 W., on left

 bank at stilling basin of outlet of Santa Fe flood-control dam, 500 ft downstream from

axis of dam and 1.7 miles north of Baldwin Park. 

Drainage area.--231 sq mi.

Records available.--October 1942 to September 1957. 

Gage.--Water-stage recorder. Datum of gage is 400.00 ft above mean sea level (levels by

ITorps of Engineers). 

Extremes.--Mo flow during year.

 1942-57: Maximum discharge, 6,700 cfs Jan. 24, 1943; no flow during several months

of each year. 

Remarks.--No flow since Dec. 16, 1952. Observations of no flow generally made twice a

 monTih. Flow regulated by Cogswell and San Gabriel flood-control reservoirs (combined 

capacity, 54,500 acre-ft), Morris Reservoir- (capacity, 35,000 acre-ft), Santa Fe floodcontrol reservoir (capacity, 36,800 acre-ft), and several small flood-control reservoirs (combined capacity, 19,100 acre-ft). Diversions above station for irrigation, 

power development, and ground-water replenishment. The Los Angeles County Flood Control District diverted 3,400 acre-ft above station through the Santa Fe channel to 

headwaters of Rio Hondo during year.

Cooperation.--Records of diversion to Rio Hondo furnished by Los Angeles County Flood

ontrol District.

San Dimas Creek below San Dimas Dam, Calif.

Location.--Lat 34°09ilO", long 117°46'18", in SW&SE£ sec. 24, T. 1 N., R. 9 W., on left

 bank 1,000 ft downstream from San Dimas Dam and 3.7 miles northeast of San Dimas.

Drainage area.--16.2 sq mi.

Records available.--October 1956 to September 1957 in reports of Geological Survey.

 December 1951' to September 1956 in reports of Los Angeles County Flood Control District. 

Gage.--Water-stage recorder and low-flow concrete control. Datum of gage is 1,325.0 ft

 above mean sea level (levels by Los Angeles County Flood Control District). 

Extremes.--Maximum daily discharge during year, 5.0 cfs June 30 to July 9; no flow most

of year. 

Remarks.--Flow regulated by San Dimas flood-control reservoir (capacity, 1,042 acre-ft)

and at times by old water tunnel 150 ft upstream. 

Cooperation.--Records furnished by Los Angeles County Flood Control District and reviewed

by Geological Survey.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

o

o

0

Dec.

0

0

0

0

0

0

0

1.5

2.5

2.5

2.5

2.5

2.5

2.5

2.4

2.4

1.6

.1

0

o

0

0

0

0

o

0

0

o

0

0

0

23.0

0.74

46

Calendar year 1956: Max -

0

0

0

0

0

0

0

0

0

0

0

o

o .2

0

0

0

0

0

0

0

o

0

0

o

o

0

0

0

0

0

0.2

0.006

0.4

Feb.

0

0

0

0

o

0

0

0

0

0

0

0

o

0 ,

0

0

0

0

0

o

o

o

0.1

0

0

o

.1

0.2

0.007

0.4

Mln -

Mar.

0.1

0 5

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

o

0

0

o

o

0

0

o

0

0

0

o

0

0.1

0.003

0.2

Apr.

0

0

0

0

0

0

0

0

o

0

.9

2.2

2.2

2.2

2.8

3.3

373

3.3

3.3

2.4

1.8

.'l

.1

.1

29.2

0.97

58

Mean -

May

0.9

2.1

2.8

3.7

377

3.7

3.7

3.0

2.0

2.0

1.9

1.9

1.7

1.6

1.5

1.4

1.4

1.4

1.5

1.5

1.6

1.6

1.6

1.6

1.5

1.5

1.4

1.4

1.4

1.3

1.2

59.5

1.92

118

June

1.2

1.0

.9

.9

.8

1.0

1.0

1.0 1.1

1.1

1.0

1.0

1.0

.9

1.0

1.0

1.0

1.2

1.2

1.2

1.2

1.2

1.0

1.0

1.0

1.0

1.0

3.0

5.0

36.7

1.22

73

July

5.0 575"

5.0

5.0

5.0

5.0

5.0

5.0

5.0

4.6

3.7

3.7

3.7

3.7

3.6

2.5

0

0

0

O

0

0

0

0

0

0

0

o

0

o

70.5

2.27

140

Aug.

O

0

0

Sept.

0

O

0

Ac-ft -

Water year 1956-57! Max 5.O Mln O Mean O.6O Ac-ft 436
SAN GABRIEL RIVER BASIN 101

Dalton Creek near Glendora, Calif.

Location. Lat 34°Q9'3Q", long 117 0 49'40", in center of sec. 21, T. 1 N., R. 9 W., on

right bank 0.6 mile upstream from mouth of canyon, 1.7 miles downstream from Big Dalton 

Dam, and 2.6 miles northeast of Glendora.

Drainage area. 7.5 sq mi, approximately.

Records available. December 1919 to September 1957.

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 1,170 ft (from 

topographic map). Prior to Aug. 26, 1953, at datum 1.00 ft higher.

Average discharge. 37 years (1920-57), 1.04 cfs (753 acre-ft per year); median of yearly 

mean discharges, 0.3 cfs (220 acre-ft per year).

Extremes. Maximum discharge during year, 12 cfs Nov. 9 (gage height, 1.95 ft); no flow 

most of year.

1919-57: Maximum discharge, about 850 cfs Mar. 2, 1938, from record of release from 

Big Dalton Reservoir; no flow for several months each year.

Remarks. Records good. Discharge measurements or observations of no flow generally made 

three times a month. Flow regulated by Big Dalton flood-control reservoir (capacity, 

950 acre-ft). Glendora Irrigation Co. diverted 38 acre-ft during year at diversion 

dam 1.5 miles above station.

Cooperation. Eleven discharge measurements and two observations of no flow furnished by 

Los Angeles County Flood Control District.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, in cubic feet per second) 

(Shifting-control method used Apr. 7-12)

1.0

1.1

1.2

1.3

1.4 0.7

1.5 1.2

1.6 2.0

1.7 3.4

1.8 5.8

1.9 9.0

Discharge, in cubic feet per nd, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

.17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

0

0

0

0

0

7.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

7.2

0.24

14

Dec.

0

0

0

Jan.

0

5

0

0

0

0

0

0

0

0

J

0

^

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

.1

0

.1

0.4

0.01

0.8

Feb.

0.1

!l

.1

.1

O0"

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

-

0.6

0.02

1.2

Mar.

0

0

0

Apr.

0

0

0

May

O

0

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956 : Max 25 Mln o Mean 0.34 Ac-ft 249

Water year 1956-57: Max 7.1 Mln 0 Mean 0.02 Ac-ft 16
102 SAN GABRIEL RIVER BASIN

Little Dalton Creek near Glendora, Calif.

Location. Lat 34°10'03", long 117°50'15", in NEirSEirSEir sec. 17, T. 1 N., R. 9 W., on 

bank 0.2 mile upstream from Angeles National Forest boundary and 2.6 miles northeast 

of Glendora.

Drainage area. 2.7 sq mi, approximately.

Records available.--December 1938 to September 1957. January 1929 to November 1938 at 

site 0.8 mile downstream; records not equivalent as flow diverted just above station is 

not included.

Gage. Water-stage recorder. Datum of gage is 1,334.38 ft above mean sea level (levels by 

Los Angeles County Flood Control District).

Average discharge. 19 years, 0.65 cfs (471 acre-ft per year); median of yearly mean discharges, 0.3 cfs (220 acre-ft per year).

Extremes. Maximum discharge during year, 12 cfs Jan. 13 (gage height, 0.60 ft); no flow 

most months.

1938-57: Maximum discharge, 198 cfs Feb. 22, 1944; no flow at times each year. 

Flood of Mar. 2, 1938, 960 cfs (estimated). Flood in February 1914, 1,020 cfs, estimated on basis of slope-area determination of peak flow.

Cooperation. Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

0

0

0

0

0

0

0

0

0

~33.3

.2

.1

0

0

o

.1

.2

.1

0

0

.1

.7

.6

.4

.4 

.4

.4

7.2

0.23

14

Feb.

0.3

.3

.3

.3

.2

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

1.1

.4

.4

.4

.8

-

6.7

0.24

13

Mar.

~7? 1.6

.8

.8

.8

.8

.7

.7

1.1

.9

.6

.5

.4

.3

.3

.4

.4

.4

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

14.2

0.46

28

Apr.

0.1

..1

.1

.1

0

0

0

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.8

1.1

. 3

.2

.2

0

0

0

0

0 

0

4.1

0.14

8.1

May

0

T5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.7

.3

.2

.2

.2

.1

.1

0

0

0

0 

0

0

1.8

0.06

3.6

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956 : Max 50 Min 0 Mean 0.29 Ac-ft 211

Water year 1956-57 : Max 3.3 Min 0 Mean 0.09 Ac-ft 67
SAN GABRIEL RIVER BASIN 103 

San Gabriel River above Whittier Narrows Dam, Calif.

Location. Lat 34°02'00", long 118"02"14", in La Puente Grant, on downstream side of 

bridge near the center, on San Gabriel River Parkway, 0.8 mile downstream from San 

Jose Creek flood channel, H miles upstream from axis of Whittier Narrows Dam, and 

1.8 miles south of El Monte, Los Angeles County.

Records available. October 1955 to September 1957.

Gage.--Water-stage recorder since Dec. 7, 1955. Altitude of gage is 220 ft (from topographic map).

Extremes. Maximum discharge during year, 3,250 cfs Mar. 1 (gage height, 7.15 ft); no 

flow for several months.

1955-57: Maximum discharge, not determined occurred Jan. 26, 1956 (gage height, 

8.16 ft, from floodmarks); no flow for part of each year.

Remarks. Records fair. Discharge measurements or observations of no flow generally made 

three times a month. Flow regulated by San Gabriel and Cogswell flood-control reservoirs (combined capacity, 54,500 acre-ft), Morris Reservoir (capacity, 35,000 acre-ft), 

Santa Fe flood-control reservoir (capacity, 35,800 acre-ft), and several small floodcontrol reservoirs (combined capacity, 19,100 acre-ft). Many diversions above station 

for irrigation, power development, and ground-water replenishment. Colorado River 

water is released from Puddingstone Reservoir down Walnut Creek to San Gabriel River 

for ground-water replenishment in the San Gabriel River and Rio Hondo basins. San Jose 

flood channel diverts all flows above 200 cfs from San Jose Creek to the San Gabriel 

River above station. At times flow is diverted from- San Gabriel River below Santa Fe 

Dam to Rio Hondo.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Tbtal

Mean

Ac-ft

(t)

Oct.

229

221

221

178

145

197

215

221

'529 237

229

217

.7

00"

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

2,539.7

81.9

5,040

5,040

Nov.

31

260

268

268

276

276

284

284

276

276

260

268

268

268

268

276

276

276

276

268

244

4.6

0

0

0

0

0

0

0

0

5,451.6

182

10,810

10,810

Dec.

00"

0

0

1

.5

0

0

0

0

0

23

268

276

292

300

300

284

284

276

284

284

284

284

276

276

276

300

300 

300

300

5,468.5

176

10,850

10,850

Jan.

276

202

.4

0

16

0

0

0

0

.17

0

16

.£27

<J

0

0

0

0

0

0

0

0

0

0

0

8.6

0

0

0

0 

0

1,163.0

37.5

2,310

950

Feb.

0

TS

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-570

0

0

0

2.1

-

72.1

2.57

143

0

Mar.

244

3.

0

0

0

0

0

0

0

0

0

0

0

0

0

46

0

0

0

0

0

0

0

0

0

0

0

0

53

237

260

840

27.1

1,670

1,095

Apr.

276

276

276

276

268

268

268

276

276

276

276

256

5.1

0

TS

0

0

94

260

241

194

207

260

292 29~2

234

3.4

0

0

0

5,350.5

178

10,610

10,610

May

0

TS

0

0

0

0

0

0

0

0

0

.6

0

0

0

0

0

0

3^6.

0

0

0

0

0

0

0

0

0

0

0

0

4.2

0.14

8.3

0

June

0

0

0

0

July

0

0

0

0

Aug.

0

0

0

0

Sept.

0

0

0

0

Calendar year 1956 : Max 4,000 Mln 0 Mean 64.1 Ac-ft 46,540

Water year 1956-57: Max 627 Min 0 Mean 57.2 Ac-ft 41,440

t Colorado River water released to San Gabriel River for ground-water recharge.
104 SAN GABRIEL RIVER BASIN

San Jose Creek near Whittier, Calif.

Location. Lat 34°01 I 25", long 118°02'05", in Paso de Bartolo Grant, on downstream side 

of Workman Mill Road Bridge, 3 miles north of Whittier, Los Angeles County.

Drainage area. 85.2 sq mi.

Records available. January 1929 to September 1957.

Gage. Water-stage recorder. Datum of gage is 214.85 ft above mean sea level (levels by 

Los Angeles County Flood Control District). Since Sept. 13, 1955, supplementary 

water-stage recorder on San Jose flood channel Ij miles upstream.

Average discharge. 28 years, 8.13 cfs (5,890 acre-ft per year); median of yearly mean 

discharges, 5.0 cfs (3,600 acre-ft per year).

Extremes. Maximum discharge during year, 1,200 cfs Mar. 1; no flow for many days. 

T9~29-57: Maximum discharge, 13,100 cfs Jan. 1, 1934; no flow at times.

Remarks. One small diversion above station for ground-water recharge. San Jose flood 

channel l| miles upstream diverts all flows in excess of 200 cfs from San Jose Creek 

to San Gabriel River above Whittier Narrows Reservoir. Records published herein 

represent combined flow of San Jose Creek and San Jose flood channel.

Cooperation. Records furnished by Los Angeles County Flood Control District and 

reviewed by Geological Survey.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

.6

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

8.7

0.28

17

Nov.

0

0

0

0

O

0

0

0

0

0

o

0

0

0

0

0

o

0

 0

o

0

0

0

0

0

0

0

o

0

o

0

0

0

Dec.

0

0

0

o

0

.1

.1

.1

.1

.1

.2

TT

.1

.1

.1

.1

.1

.1

0

o

0

0

0

o

o

o

o

0

0

0

1.6

0.05

3.2

Jan.

0

0

o

o

8.8

.6

.3

.5

.3

40

1.0

13

238

 T.3

.8

.7

1.1

.9

.7

1.4

2.0

.6

.6

1.3

1.3

32

3.1

4.7

16

2.1

.5

373.6

12.1

741

Feb.

0.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

89

3.3

.7

.5

.4

13

-

111.9

4.00

222

Mar.

~T.7 113

G'.

37

1 .(

1.

1 .(

.9

172.2

5.55

342

Apr.

0.6

.7

.6

.6

.8

1.0

1.0

.8

.7

.7

.7

.9

.4

.3

^2

.2

.2

15

3.2

18

29

8.0

2.8

1.6

1.2

1.6

1.3

1.8

1.9

2.0

97.8

3.26

194

May

2.1

2.3

2.5

1.8

1.2

.6

1.0

1.1

.9

-i^

6.8

18

T.2

1.9

3.6

1.2

.9

.7

17

2.5

3.6

1.2

1.1

.9

.6

.7

.8

1.3

1.3

1.0

.8

81.1

2.62

161

June

0.9

1.3

ITT

1.3

1.3

1.0

.8

.8

.7

.7

.7

.7

.7

.5

.5

1.2

.4

.4

.2

.2

.2

.4

.4

.4

.4

.3

.3

.3

.2

.2

18.5

0.62

37

July

0.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

0

0

0

0

o

0

0

0

3.8

0.12

7.5

Aug.

0

O

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.4

.3

.3

.2

.2

.2

6.3

0.20

12

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

0

.1

.1

.1

.1

.1

.1.1.1

.1

.1

.1.1

.1

.1

.1

0

0

.1

.1.1

2.7

O.O9

5.4

Calendar year 1956: Max 1,950 Min O Mean 6.78 Ac-ft 4,930

Water year 1956-57: Max 238 Min o Mean 2.41 Ac-ft 1,740
SAN GABRIEL RIVER BASIN 105

San Gabriel River at Pico, Calif.

Location. Lat 34°00'25", long 118°04'05", in Paso de Bartolo Grant, in downstream end of 

mid-span pier of Beverly Boulevard Bridge, 0.7 mile downstream from San Jose Creek and 

0.8 mile northeast of Pico, Los Angeles County.

Drainage area. 206 sq mi (excluding area above Santa Pe Dam). 

Records available. October 1928 to September 1957.

gage. ;e. Water-stage recorder. Altitude of gage is 180 ft (from topographic map). Prior 

" Nov. 15, 1947, at site 1,200 ft downstream at different datum. Nov. 15, 1947, to 

Mar. 5, 1952, at site 1,000 ft downstream at different datum.

Extremes.--Maximum discharge during year, 3,600 cfs Mar. 1 (gage height, 8.97 ft); no 

flow most of year.

1928-57: Maximum discharge, 22,700 cfs Mar. 2, 1938; no flow for periods each 

year.

Remarks. Flow regulated by Cogswell and San Gabriel flood-control reservoirs (combined 

capacity, 54,500 acre-ft), Morris Reservoir (capacity, 35,000 acre-ft), Santa Fe floodcontrol reservoir (capacity, 36,800 acre-ft), Whittier Narrows flood-control reservoir 

(capacity, 36,160 acre-ft), and several small flood-control reservoirs (combined capacity , 19,100 acre-ft). Diversions above station for irrigation, power development, 

and ground-water replenishment. At times flow is diverted from San Gabriel River 

below Santa Fe Dam and above Whittier Narrows Dam to Rio Hondo.

Cooperation. Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Revisions (water years). WSP 881: 1937.

Discharge,. In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

Oct.

50

48

50

~ZE 101

37

36

*36

36

36

*36

33

.6

O

c

0

0

0

o

0

o

0

0

0

0

o

0

0

0

0

0

525.6

17.0

1,040

902

Nov.

0

*64

98

114

130

130

149

149

*144

144

135

139

149

144

*130

135

130

121

121

125

*115

1.0

O

O

0

0

o

0

0

0

2,567.0

85.6

5,090

5,090

Dec.

0

C

0

0

0

o

0

0

0

0

0

0

*82

13O

130

125

117

110

*95

91

95

95

91

95

95

91

91

*95

95

91

91

1,905

61.5

3,780

3,780

Jan.

95

76

.1

0

*23

9.7

10

9.7

9.2

*103

*8.6

10

*558

*T6

5.4

4.5

*4.8

5.1

5.1

6.5

*8.6

6.3

6.6

6.6

*6.9

30

6.9

10

16

12

7.5

1,077.1

34.7

2,140

339

Feb.

5.1

4.8

4.5

4.5

4.5

4.5

*4.2

4.2

4.5

4.2

3.5

2.8

2.0

*1.7

7^

3.5

3.2

3.2

3.5

3.5

*3.8

3.8

*96

*6\7

6.3

5.7

4.5

*16

_

217.7

7.78

432

O

Mar.

*288 5.0

4.2

*2.3

2.0

1.7

*1.7

4.8

8.6

*12

*6.3

5.4

5.1

*5.1

5.1

*55

4.3

 3.4

4.0

4.0

*3.2

2.2

.7

1.2

.7

0

C

.2

24

*114

121

698.2

22.5

1,380

274

Apr.

125

T21

*114

102

98

102

84

95

95

110

117

*110

2.3

0

C

0

O

15

*121

104

87

74

102

*121

117

81

1.0

0

0

0 ._.... -

2,098.3

69.9

4,160

4,160

May

0

0

0

0

June

0

0

0

0

July

0

0

0

0

Aug.

O

0

0

0

Sept.

------

0

0

0

0

Calendar year 1956: Max 4.O3O Mln o Mean 32.1 Ac-ft 23,290

Water year 1956-57: Max 558 MLn o Mean 24.9 Ac-ft 18.O2O

* Discharge measurement made on this day.

t Colorado River water released to San Gabriel River for ground-water recharge
106 SAN GABRIEL RIVER BASIN

San Gabriel River at Spring Street, near Los Alamitos, Calif.

Location.--Lat 33°48'38", long 118°05'24", in NE^NE^SW^- sec. 24, T. 43., R. 12 W. , on 

downstream side of Spring Street Bridge, 1.2 miles upstream from Coyote Creek and 

1.2 miles northwest of Los Alamitos.

Drainage area. 216 sq mi (excluding area above Santa Fe Dam).

Records available.--October 1936 to September 1951 and October 1952 to September 1957, 

in reports of Geological Survey; 1927-36 in reports of Los Angeles County Flood Control District.

Gage. Water-stage recorder. Datum of gage is 12.25 ft above mean sea level, datum of 

T929, supplementary adjustment of 1934. Prior to October 1952, at datum 4.44 ft 

higher.

Average discharge.--29 years (1927-51, 1952-57), 25.0 cfs (18,100 acre-ft per year); 

median of yearly mean discharges, 1.8 cfs (1,300 acre-ft per year).

Extremes. Maximum discharge during year, 1,760 cfs Jan. 13 (gage height, 7.79 ft); no 

flow most of year.

1936-51, 1952-57: Maximum discharge, 27,300 ofs (estimated) Mar. 2, 1938; no 

flow most of time each year.

Remarks. Flow regulated by San Gabriel and Cogswell flood-control reservoirs (combined 

capacity, 54,500 acre-ft), Morris Reservoir (capacity, 35,000 acre-ft), Santa Fe 

flood-control reservoir (capacity, 36,800 acre-ft), Whittier Narrows flood-control 

reservoir (capacity, 36,160 acre-ft), and several small flood-control reservoirs 

(combined capacity, 19,100 acre-ft). Many diversions above station for irrigation, 

power development, and ground-water replenishment. At times flow is diverted from 

San Gabriel River below Santa Fe Dam and above Whittier Narrows Dam to Rio Hondo.

Cooperation.--Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

i-'O.

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

o

Nov.

0

0

0

Dec.

0

0

0

Jan.

O

0

0

0

0

0

0

0

0

O

0

0

 393

0

0

0

u

0

0

0

0

0

0

0

0

0

0

0

0

0

0

393

12.7

780

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.6

.3

0

0

o

0

-

0.9

0.03

1.8

Mar.

*57

.5

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

57.5

1.65

114

Apr.

0

0

0

May

0

0

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956 : Max 4,300 Mln 0 Mean 12.9 Ac-ft 9,390

Water year 1956-57: Max 393 Min 0 Mean 1.24 Ac-ft 896

Discharge measurement made on this daj
SAN GABRIEL RIVER BASIN 107

Brea Creek below JBrea Dam, near Fullerton, Calif.

Location. Lat 33°53'16", long 117° 55' 32", in NEirNEvNEi sec. 28, T. 3 S., R. 10 W., on 

right bank 0.2 mile downstream from Brea dam and 1 mile north of Fullerton.

Drainage area. 23.4 sq mi.

Records available. January 1942 to September 1957.

Gage.--Water-stage recorder. V-notch sharp-crested weir sinee Oct. 25, 1946. Datum of 

gage is 197.70 ft above mean sea level (levels by Corps of Engineers).

Average discharge.--15 years, 0.64 cfs (463 acre-ft per year); median of yearly mean discharges, 0.2 cfs (140 acre-ft per year).

Extremes.--Maximum discharge during year, 2.7 cfs Jan. 13 (gage height, 0.79 ft); no flow 

most of year.

1942-57: Maximum discharge, 655 cfs Feb. 29, 1944 (gage height, 5.10 ft); no flow 

at times most years.

Remarks.--Records good. Flow regulated by Brea flood-control reservoir (capacity, 

4,100 acre-ft).

Revisions (water years).~-WSP 1041; 1944(M).

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

HoV.

(*)

(*)

0

0

0

Dec.

(*)

0

0

0

Jan.

0

TS

0

0

0

0

0

0

0

0

0

,1

.3

0

0

0

0

0

0

.1

*0

0

0

0

0

.1

0

0

0

*0 

0

0.6

0,02

' 1.2

Feb.

0

3

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

*0

.1

-

0.3

o.ol

0.6

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

Apr.

*0

5

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

jl

0

0

0

0

0

0

0

0

*0

0

0.2

0.007

0.4

May

0

s

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

June

C)

0

0

0

July

(*)

(*)

0

0

0

Aug.

<")

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 123 Min 0 Mean 0.52 Ac-ft 378

Water year 1956-57: Max 0.3 Min 0 Mean 0.004 Ac-ft 2.6

* observation of no flow made on this day.
108 SAN GABRIEL RIVER BASIN 

Brea Creek at Fullerton, Calif.

Location. Lat 33°52'25", long 117°55'30", in SE-fNE^SE-f sec. 28, T. 33., R. 10 W,, 

between Maiden Avenue and Spadra Road at Fullerton.

Drainage area. 26.2 sq mi.

Records available.--October 1930 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 160 ft (from topographic map). From

Oct. 1, 1930, to Sept. 30, 1935, at site a quarter of a mile upstream at different datum. 

Oct. 1, 1935, to Jan. 19, 1940, at site a quarter of a mile downstream at different 

datum.

Average discharge.--26 years (1930-38, 1939-57), 1.14 cfs (825 acre-ft per year); median 

of yearly mean discharges, 0.4 cfs (290 acre-ft per year).

Extremes.--Maximum discharge during year, 33 cfs Jan. 13 (gage height, 0.31 ft); no flow 

most of year.

1930-57: Maximum discharge, 3,700 cfs Mar. 14, 1941 (gage height, 5.45 ft); no 

flow during most of each year.

Remarks.--F1on regulated by Brea flood-control reservoir (capacity, 4,100 acre-ft). 

Cooperation. Records furnished by Orange County Flood Control District.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Cale

Oct.

0

.4

O

.6

0

0

o

0

0

0

0

0

0 

0

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

1.0

0.03

2.0

Nov.

0

0

O

0

0

o

0

0

0

0

0

0

.2 

o .3

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0.5

0.02

1.0

Dec.

0

0

0

0

.5

.2

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.5

0.02

1.0

idar year 1956: Max 180

Jan.

0

0

0

.2

.4

0

.2

0

0

.2

0

.7

o 5.8

0

0

0

0

0

.7

0

O

0

0

.1

1.7

.4

.1

.7

0

0

11.2

0.36

22

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

.1

2.7 0~~

0

0

0

1.1

-

3.9

0.14

7.7

Mln 0

Mar.

0.7

0

0

0

0

0

0

0

.2

0

0

0

0 

0

0

.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.5

0.05

3.0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

.4

.1

0

1.5

.2

0

0

0

0

0

0

0

0

0

2.0

0.07 4.0

May

0

0

0

0

0

0

0

0

0

0

o .4

0 

0

0

0

0

0

.4

.1

.4

.1

0

0

0

0

0

0

0

0

0

1.4

0.05

2.8

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Mean 0.75 Ac-ft 547

Water year 1956-57: Max 5.8 Mln 0 Mean 0.06 Ac-ft 44
SAN GABRIEL RIVER BASIN 109

Fuller-ton Creek below Fullerton Dam, near Brea, Calif.

V-notch

Location . Lat 33°53'45", long 117°53'07", in NE^NWiSW^- sec. 24, T. 3 S., R. 10 W., on 

left bank of outlet channel of Fullerton Dam, 1.6 miles southeast of Brea.

Records available . October 1941 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 260 ft (from topographic map). 

sharp-crested weir used Oct. 25, 1946, to Feb. 2, 1956.

Average discharge. 13 years (1941-54), 0.19 cfs (138 acre-ft per year); median of 

yearly mean discharges, 0.02 cfs (14 acre-ft per year).

Extremes . --Maximum discharge during year, 12 cfs Apr. 23 (gage height, 0.51 ft); no flow 

for several months .

1941-57: Maximum discharge, 298 cfs Mar. 16, 1943 (gage height, 3.80 ft); no flow 

most of each year.

Remarks. Records fair except those for period of no gage-height record, which are poor. 

Discharge measurements or observation of no flow generally made twice a month. Flow 

regulated by Fullerton flood-control reservoir (capacity, 743 acre-ft). Since 

December 1954, small tributary formerly entering below station diverted into reservoir.

Revisions (water years) .--WSP 1245: 1950(M) .

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

.1

.il

.2

.2

.1

0

0

.1

.2

.2

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.6

0.05

3.2

Nov.

0

0

0

Dec.

0

0

0

0

0

0

0

0

0

0

.1

.1

.1.1.1

.1

0

.1

.1

.1

.1

.1

.1

0

.1

.1

0

0

0 

0

0

1.4

0.05

2.8

Calendar year 1956 : Max 97

Jan.

0

0

0

.5

.5

.6

.6

.6

.6

.7

.7

.8

3.7

3TT

2.7

1.7

1.5

1.2

1.0

1.0

.8

.8

.8

.7

.7

.6

.5

.4

.3 

.3

.3

27.7

0.89

55

Feb.

0.3T3~

.3

.3

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

f.5

1

1

.8

1.5

-

17.5

0.62

35

Mar.

1

.8

.7

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.8

.7

.7

.7

.6

.6

.6

.6 

.6

.5

.5

.5

.4

tf

.2

18.8

0.61

37

Apr.

0.2

.2

.2

.1

0.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.0 

.4

.2

2.3

.5

.2

.2

3.2

10.7

0.36

21

May

0.6

.4

1.9

.6

.6

.5

.5

1.4

.6

.5

.5

.5

.4

~75~

.5

.8

1.2

1.5

1.5

1.7

1.5

1.5 

1.3

1.3

1.3

1.3

1.2

1.2 

1.0

1.0

31.4

1.01

62

June

1.0

.8

.8

.8

.8

.8

.8

.7

.7

.7

.6

.6

.6

.6

.5

.5

.4

.4

.2

.8

1.3

1.7

1.9'.a

1.9

.5

.1

0 

0

23.2

0.77

46

July

0

0

0

Aug.

0

0

0

0

0

0

.3

.7

o .8

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

1.8

0.06

3.6

Sept.

0

0

0

Mln 0 Mean 0.43 Ac-ft 316

Water year 1956-57 : Max 3.7 Mln 0 Mean 0.37 Ac-ft 866

Note. No gage-height record Jan. 26 to Mar. 6, June 27-30; discharge estimated on basis of 

4 discharge meaaurements, weather records, and records for station at Fullerton.
110 SAN GABRIEL RIVER BASIN

Coyote Creek near Artesia, Calif.

Location. Lat 33°50'20", long 118 0 03'34", in NE£NW£SW£ sec. 8, T. 4 S., R. 11 W., on 

downstream side of Centralia Road Bridge, 2 miles southeast of Artesia and 3.7 miles 

upstream from mouth.

Drainage area. 110 sq mi.

Records available. October 1939 to September 1957 in reports of Geological Survey. January 1930 to September 1939 in reports of Los Angeles County Flood Control District.

Gage. Water-stage recorder. Datum of gage is 20.2 ft above mean sea level (levels by 

Eos Angeles County Flood Control District). Prior to Feb. 9, 1956, at several sites 

about half a mile upstream at different datums.

Average discharge. 27 years (1930-57), 8.09 cfs (5,860 acre-ft per year); median of 

yearly mean discharges, 4.2 cfs (3,000 acre-ft per year).

Extremes. Maximum discharge during year, 334 cfs Jan. 13 (gage height, 6.99 ft); no 

flow for many days.

1930-57: Maximum discharge, 7,360 c'fs Jan. 18, 1952 (gage height, 14.30 ft); no 

flow at times most years.

Cooperation. Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

2.4

.3

.2

.3

.2

.3

.2

.2

.2

.1

.2

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.3

.3

.2

.3 

.3

7.4

0.24

15

Nov.

0.4!"3

.2

.2

.2

.1

.1

.1

.1

.1

'.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

3.1

0.10

6.1

Dec.

0

0

0

0

0

0

0

.1.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

7?

.2

.1

.2

.2

.2

.2

.2

3.2

0.10

6.3

Jan.

0.2

'.2

.3

1.6

2.8

.2

.2

.2

4.0

3.2

1.0

163

18

1.0

.5

.4

.3

.3

3.4

9.4

.6

.3

.5

.9

39

11

6.8

11

4. 8

2.4

287.7

9.28

571

Feb.

0.6

.5

.4

.3

.3

.3

.3

.3

.3

.3

.5

.5

.6

.6

.6

.6

.5

.4

.3

.3

.3

.3

57

16

1.6

.5

.4 575

90.2

3.22

179

Mar.

14

6.8

1.9

1.9

1.9

1.9

1.9

1.8

1.2

7.9

2.4

1.0

1.2

.7

.6

16

8.4

1.2

.3

.2

.1

.1

.1

.1

.2

.2

.3

.3

.3

.3

.2

75.4

2.43

150

Apr.

~30.1

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

..1

2.4

4.2

.6

~4.2 26

.5

.5

.7

.5

.4

1.0

.6

.2

44.9

1.50

89

May

0.2

1.3

.6

.9

.9

.5

.2.1'

7T

.1

.2

2.0

1:4

.3

.2

1.2

.4

1.2

1.1

7.8

7.4

11

T.4

3.2

2.4

1.6

1.2

1.1

.7

.6

.4

52.7

1.70

105

June

0.3

.3

.2

72

.2

.2

.2

.2

.2

.2

.3

.4

.4

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.4

1.1

1.7

2.4

!s

12.2

0.41

24

July

17

1.8

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

72

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.1

.1

24.7

0.80

49

Aug.

0.1

.1

.1

0

 1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

1.5

0.05

3.0

Sept.

0.1

0

0

0

0

0

.1

.1

.1

.1

,1

0

.1

.1

.1

0

.1

0

0

0

.1

.2

.1

0

0

0

.1

.1

0

0

1.6

0.05

3.2

Calendar year 1956: Max 2,080 Mln 0 Mean 9.97 Ac-ft 7,230

Water year 1956-57: Max 163 Mln 0 Mean 1.66 Ac-ft 1,200
SAN GABRIEL RIVER BASIN 111

Carbon Creek near Yorba Linda, Calif.

Location. Lat 33°53'22", long 117°50'40", in NW^NW^NEt sec. 29, T. 3 S., R. 9 W., on 

downstream side of left abutment of Yorba Linda Boulevard bridge, 1.8 miles west of 

Yorba Linda.

Drainage area. 20.4 sq mi.

Records available.--October' 1949 to September 1957.

Gage. Water-stage recorder. Datum of gage is 288.60 ft above mean sea level, unadjusted.

Average discharge. 8 years, 0.23 cfs (167-acre-ft per year).

Extremes. Maximum discharge during year, 22 cfs Feb. 1 (gage height, 3.70 ft); no flow 

most' of year.

1949-57: Maximum discharge, 616 cfs Jan. 18, 1952 (gage height, 4.60 ft), from 

rating curve extended above 200 cfs by logarithmic plotting; no flow most of each year.

Remarks.--Records poor. Discharge measurement or observation of no flow generally made 

twice a month.

Cooperation. One discharge measurement furnished by Orange County Flood Control District.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1956 : Max 72

Jaru

0

13

0

0

0

0

0

0

0

0

0

.1

.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

1.0

0.03

2.0

Feb.

^ 1.5

15

0

0

0

0

0

0

Q

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

1.5

0.05

3.0

Mln 0

Mar.

0

0

0

Apr.

0

13

0

.3

0

0'

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

0

0 

0

0.6

0.02

1.2

May

0

0

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Mean 0.28 Ac-ft 206

Water year 1956-57: Max 1.5 Mln 0 lean 0.008 Ac-ft 6.2

Peak discharge (base, 25 "cfs). No peak above base.
112 LOS ANGELES RIVER BASIN

Los Angeles River at Sepulveda Dam, Calif.

Location.--Lat 34°09 1 42", long 118°27'57", in Ex Mission de San Fernando Grant, on right 

bank of outlet channel of Sepulveda Dam, 200 ft upstream from Sepulveda Boulevard in 

city of Los Angeles and 1.85 miles southwest of Van Nuys, Los Angeles County.

Drainage area.--155 sq mi.

Records available.--May 1943 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 670 ft (from topographic map). Prior 

£o Aug. 29, 1953, at site 800 ft upstream at datum 5.99 ft higher.

Average discharge.--14 years, 20.6 cfs (14,910 acre-ft per year);-median of yearly mean 

discharges, 19 cfs (13,800 acre-ft per year).

Extremes.--Maximum discharge during year, 3,160 cfs Jan. 13 (gage height, 4.27 ft); minimum daily, 2.4 cfs Dec. 26.

1943-57: Maximum discharge, 8,520 cfs Jan. 15, 1952 (gage height, 14.56 ft, site 

and datum then in use); minimum daily, 1.3 cfs Sept. 20-22, 24, 25, 1951.

Remarks.--Records good below 100 cfs and fair above. Discharge measurements generally 

ma3e once a week. Plow regulated by Sepulveda flood-control reservoir (capacity, 

17,400 acre-ft). Some diversion above station. City of Los Angeles stores imported 

Owens River water in San Fernando and Chatsworth Reservoirs and at times discharges 

imported water into Los Angeles River above station from the latter. This inflow 

amounted to 1,600 acre-ft during current year.

Cooperation. Twenty-five discharge measurements furnished by Los Angeles County Flood 

Control District. Flow from Chatsworth Reservoir furnished by city of Los Angeles.

Rating table, water year 1956-57 (gage height, in feet, and discharge, in cubic feet per second) 

(Shifting-control method used Jan. 13, Mar. 16, May 1-11, May 28 to June 3, Sept. 4-11)

0.2 

.3

2.8

8.9

19

0.5

.7 

1.0

72

170

1.3 

1.7 

2.1

305

550

850

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Ac-ft

(t)

Oct.

5.4

7.4

7.4

32~6.0

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

4.8

4.2

5.4

5.4

5.4

4.8

4.8

3.7

3.7

3.7

4.2

4.2

4.2

4.2

4.8

4.2

14

14

201.1

6.49

399

68

Nov.

12"5.1

3.7

3.7

3.7

3.7

3.7

3.7

3.2

372

3.2

3.E

3.7

4.8

3.7

3.7

3.7

3.7

3.2

3.2

3.2

3.2

3.7

3.7

3.7

4.2

4.2

4.2

4.8 

4.8

121.5

4.05

241

12

Dec.

4.8

4.8

4.8

5.4

25

6.0

4.2

3.7

3.2

6.1

14

16

16

16

14

14

14

14

14

14

12

3.2

2.8

2.8

2.8

2.4

10

12

12 

12

12

298.0

9.61

591

357

Jan.

12

14

14

14

313

7.4

23

7.4

5.4

6.0

6.0

263

798 ~20

6.0

5.4

4.8

28

28

89

8.9

5.4

41

68

9.3

113

64

7.4

235 

218.'1

2,245.5

72.4

4,450

209

Feb.

7.5

7

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6

6

6

6

6

6

5.5

5.5

5.5

5

F

5

5

"IF 396

10

8

7

172

-

740.5

26.4

1,470

0

Mar.

"TT 154

8.1

7.4

6.7

6.0

7.4

7.4

50

8.9

6.0

6.7

6.0

6.7

6.7

112

7.4

6.7

7.4

5.4

6.0

5.4

5.4

5.4

5.4

5.4

4.8

574

5.4

5.4

6.0

500.9

16.2

994

0

Apr.

5.4

5^ 4

sU

5.4

6.0

6.0

6.0

6.7

6.0

6.7

6.0

6.0

6.0

5.4

5.4

6.0

21

97~8.9

47

12

6.7

5.4

5.4

5.4

5.4

6.0

6.0

6.0

6.0

332.0

11.1

659

0

May

6'.0

5.4

4.8

4.8

4.8

4.8

4.8

4.8

4.5

¥70

-Ta 114

6. 7

8.9

9.7

8.1

7.4

8.9

32

7.4

9.7

6.7

6.0

6.7

6.0

5.4

5.4

5.4

5.4

5.4

5.4

333.3

10.8

661

O

June

5.4

5.4

5.4

4.8

4.8

4.3

4.2

S7o

5.4

14

4.2

5.4

4.8

5.4

5.4

5.4

5.4

4.8

4.8

4.8

5.4

5.4

4.8

5.4

6.7

6.7

5.4

4.2

5.4

4. 2

163.7

5.46

325

30

July

4.8

4.8

3.7

4.2

3.7

3.7

4.2

4.2

6.7

8.1

8.1

8.1

8.1

7.4

8.1

8.9

10

9.7

9.7

8.9

8.9

8.9

9.7

9.7

10

10

9.7

8.9

8.1

12

12

243.0

7.84

482

307

Aug.

10

12

To

9.7

10

9.7

9.7

10

10

10

10

10

9.7

9.7

6.7

6.6

10

10

9.7

9.7

9.7

9.7

10

9.7

9.7

9.7

10

10

10

9.7

9.7

301.1

9.71

597

320

Sept.

9.7

9.7

9.7

9.7

9.7

10

10

10

12

IF

12

10

12

12

12

12

12

12

10

12

9.7

9.7

12

10

9.7

9.7

10

10

317.1

10.6

629

298

Calendar year 1956: Mean 2,480 Mln 2.4 Mean 23.0 Ac -ft 16,700

Water year 1956-57: Mean 798 Mln 2.4 Mean 15.9 Ac-ft 11,500

t Plow in acre-feet released from Chatsworth Res 

flow is included in that shown on preceding line.

;rvolr to Los Angeles River above station. This
LOS ANGELES RIVER BASIN 113

Pacolma Creek near San Fernando, Calif.

Location. Lat 34°20'02", long 118°23'55" , in SE^NEj- sec. 24, T. 3 N. , R. 15 W. , on right 

bank 500 ft downstream from Pacolma Dam, a third of a mile upstream from mouth of 

canyon, and 4 miles northeast of San Fernando.

Drainage area. 28.2 sq ml.

Records available. March 1916 to September 1957.

Page. Water-stage recorder and Parshall-type flume. Altitude of gage Is 1,650 ft (from 

topographic map). Prior to September 1929, at site 0.5 mile downstream at different 

datum. September 1929 to Mar. 23, 1933, records based on outflow from Pacolma Dam. 

Mar. 24, 1933, to Feb. 1, 1935, at site 450 ft downstream at different datum.

Average discharge. . 40 years (1917-57), 8.98 cfs (6,500 acre-ft per year); median of 

yearly mean discharges, 4.2 cfs (3,000 acre-ft per year).

Extremes. Maximum discharge during year, 63 cfs May 7 (gage height, 0.75 ft); no flow 

most months .

1916-57: Maximum discharge, 2,440 cfs Mar. 3, 1938; no flow several months In most 

years.

Remarks. Flow regulated by Pacoima flood-control reservoir (capacity, 4,710 acre-ft). 

Flow passing over Pacoima Dam spillway enters creek below station.

Cooperation. Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Revisions (water years). WSP 881: 1938(M). WSP1041: 1944(M). WSP1285: 1951-52.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

3.6

3.6

3.6

3.6

3.6

3.5

3.5

3.5

3.4

3.6

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

3.9

3.9

3.8

3.9

3.9

3.9

3.8

3.6

4.0

4.1

4lT

1.3

0

111.6

3.60

221

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

_

0

0

0

Mar.

0

0

0

Apr.

0

0

0

May

0

0

0

0

0

0

28

27

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o0

0

0

0

55.0

1.77

109

June

0

0

0

July

0

0

0

Aug.

3.8

T3

5^

5.0

5.0

5.0

5.0

4.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

150.8

4.86

299

Sept.

.8

.7

.8

.7

.7

.7

.8

.8

4.7

4.4

4.8

4.8

4.7

4.6

4.7

2.0

.3

.1

0

0

0

0

0

0

0

0

0

0

0

0

73.1

2.44

145

Calendar year 1956: Max 5.2 Min 0 Mean 2.03 Ac-ft 1,470

Water year 1956-57: Max 28 Mln 0 Mean 1.07 Ac-ft 774
114 LOS ANGELES RIVER BASIN

Tujunga Creek below Mill Creek, near Colby Ranch, Calif.

Location.--Lat 34°18'33", long 118°08'40", on left bank 500 ft downstream from Mill 

Creek and 2 miles west of Colby Ranch, Los Angeles County.

Drainage area.--64.9 sq mi.

Records available.--January 1948 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 2,650 ft (from topographic map).

Average discharge.--9 years, 5.14 cfs (3,720 acre-ft per year).

Extremes .--Maximum discharge during year, 313 cfs Jan. 13 (gage height, 7.43 ft); no. 

flow Oct. 1-29, June 18 to Sept. 30.

1948-57; Maximum discharge, 1,380 cfs Jan. 18, 1952; no flow at times most years. 

Maximum discharge known since November 1930, 14,800 cfs Jan. 23, 1943.

Cooperation. Records furnished by Los Angeles County Flood Control District and 

reviewed by Geological Survey.

Discharge, Ln cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

00"

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

0.3

0.01

0.6

Nov.

0.2 

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.5

7?

.5

.4

9.8

0.33

19

Dec.

0.4

.4

.3

77

.4

.6

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.5

.5

.5

.5

.5

. 6

11.8

0.38

23

Jan.

~

0.6

.6

.7

2.0

1.1

1.0

1.0

.7

1.1

1.0

4.7

~9.7 112

4.7

3.0

2.4

2.1

1.8

2.3

2.6

2.0

2.0

2.1

2.3

2.9

2.9

2.4

2.7

2.7

2.7

180.4

5.82

358

Feb.

3.0

3.0

3.0

3.0

2.9

2.9

2.9

3.6

5.5

7.0

6.1

4.9

4.1

3.8

3.4

2.9

2. 7

2.4

2.3

277

2.3

2.3

80

2T

13

8.8

7.7

10

-

219.8

7.85

436

Mar.

19

11

8.2

6. 7

6.1

5.7

5.5

5.1

5.5

5.5

4.1

4.0

3.8

3.4

3.2

5.3

5.3

4.7

4.5

4.0

3.8

3.6

3.6

3.4

3.4

3.2

3.0

2.9

2.9

2.9

2^7

156.0

5.03

309

Apr.

2.7

2.3

2.0

2.0

2.0

2.0

2.0

1.8 270"

2.0

2.0

2.0

1.8

1.8

1.8

1.8

2.3

4.5 TTO"

3.6

4.3

4.3

3.8

3.4

3.2

2.7

2.6

2.1

2.0

1.8

75.6

2.52

150

May

1.6

1.8

1.6

1.5

1.5

1.4

1.5

1.8

1.8

2.3

5.9

6.7 378-

3.4

3.4

2.7

2.3

2.3

4.1

3.4

3.2

2.7

2.6

2.6

2.0

1.5

1.3

1.3

1.3

1.3

ui

75.8

2.45

150

June

0.9

.7

.7

.6

.4

.4

.4

.6

.9

1.2

1.2

.8

.6

.5

.5

.4

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

11.0

0.37

22

July

0

0

0

Aug.

0

0

Sept.

0

0

0 | 0

Calendar year 1956: Max 146 Mln o Mean 2.45 Ac-ft 1,770

Water year 1956-57= Max 112 Mln o Mean 2.03 Ac-ft 1,470
LOS ANGELES RIVER BASIN 115

Tujunga Creek near Sunland, Calif.

Location. Lat 34° 18'02", long 118°16'02", near center of SW^ sec. 32, T. 3 N., R. 13 W., 

on left bank 1,000 ft upstream from Gold Canyon, 2 miles upstream from mouth of eanyon, and 4 miles northeast of Sunland.

Drainage area. 106 sq ml.

Records available.--October 1916 to September 1957.

Gage.--Water-stage recorder. Datum of gage Is 1,571.80 ft above mean sea level (levels

 EJy Los Angeles County Flood Control District). Prior to Oct. 1, 1932, at site 

1,000 ft upstream at different datum.

Average discharge.--40 years (1917-57), 27.4 cfs (19,840 acre-ft per year); median of 

yearly mean discharges, 15 cfs (10,900 acre-ft per year).

Extremes.--Maximum discharge during year, 60 cfs Jan. 13 (gage height, 9.92 ft)j minimum

 dally, 0.2 cfs Oct. 3, 26, Nov.'20-22.

1916-57: Maximum discharge, 50,000 cfs (estimated) Mar. 2, 1938; minimum, 0.1 ofe 

at times during summers of 1919, 1924, 1928-31.

Remarks. Flow regulated by Big Tujunga flood-control reservoir (capacity, 4,240 acre-ft), 

Several small diversions above station for irrigation.

Cooperation.--Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.3

.3

TB" 475

.6

.6

.6 

.6

.5

.6

.6

.6

.5

.4

.4

.3

.4

.4

.4

.4

.5

.4

.4

.3

.2

.3

.6

.4

.4

.4

13.8

0.45

27

Nov.

0.4

.4

.4

.4

.4

.3

.3

.3

.4 

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.JL

.2

.2

.3

.4

.4

.3

.3

.3

.4

.4

10.7

0.36

21

Dec.

0.4

.4

.4

.4

.5

.6

75

.5

.5 

.4

.4

.4

.4

.4

.4

.3

75

.6

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.4

13.3

0.43

26

Jan.

0.5

'.5

.6

1.7

1.0

1.0

1.0

1.0

1.0

2.2

25 "

6.7

3.9

3.2

2.8

2.6

2.3

2.6

2.8

2.3

2.3

2.1

2.1

3.7

3.5

3.2

3.2

3.2

3.2

92.7

2.99

184

Feb.

3.0

3.0

3.0

2.8

2.6

2.6

2.6

2.6

2.3

2.3

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.0

1.8

1.8

1.8

23 '

T.I

6.8

5.3

4.4

6.8

106.6

3.81

211

Mar.

8.6

6.8

5.8

4.9

9.7

10

10

7.7

7.2

6.8

6.3

5.3

4.4

4.4

7.2

7.2

6.8

7.2

7.7

7.2

4.4

3.9

3.5

3.5

3.2

3.0

2.8

278

2.8

2.8

181.6

5.86

360

Apr.

2.6

2.1

2.1

2.0

2.t>

2.0

2.0

2.0

1.7

1.7

1.8

2.0

2.0

2.0

2.1

3.0

5.8

5.3-

5.8

6.8 4T9-

4.2

3.9

3.5

3.0

2.3

1.5

T7S

1.7

85.0

2.83

169

May

1.8

z'.i

2.1

2.1

2.1

2.1

2.1

3.0

876- 9.3

5.3

4.9

4.4

4.4

4.4

4.4

9.0

6.6

6.4

6.2

5.8

4.2

3.7

2.8

2.1

2.3

2.6

2.6

2.6

124.3

4.01

247

June

2.6

BTT

4.4

4.2

3.5

4.2

4.9

4.9

5.8

5.

4.

4.

4.

4.

3.

3.

3.

4.

4.

4.

4.

4.

4.

4.

4.

4.

4.

4.

4.9

131.3

4.38

260

July

5^

4.9

4.8

4.8

4.7

4.6

4.5

4.5

4.4

4.4

4.4

4.4

4.4

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4'. 2

4.2

4.2

4.1

4.4

4.2

3.7

3.7

3.7

3_._5

133.8

4.32

265

Aug.

3.2

3.0

370

3.2

3.0

3.5

3.5

3.7

3.7

3.7

3.7

3.5

3.5

3.7

3.9

377

3.9

3.9

3.9

3.7

3.5

3.7

3.7

3.7

3.5

3.5

3.7

3.7

3.7

3.7

111.0

3.58

220

Sept.

3 7

377 s!g

3.7

3.7

3,7

3.7

3.9

4.4 

4.2

4.4

4.4

4.9

5.3

5.8

6.8

7.2

7.2

7.7

772

5.8

5.3

5.3

5.8

5.8

5.8

5.3

4.9

4.2

5.8

153.5

5.12

304

Calendar ySar 1956; Max 214 Min 0.2 Mean 5.75 Ac-ft 4,160

Water year 1956-57: Max 25 Min 0.2 Mean 3.17 Ac-ft 2,290

510529 O - 59 -9
116 LOS ANGELES RIVER BASIN

Haines Creek near Tujunga , Calif.

Location. Lat 34°15'50", long 118°16'15", in NW^NWi sec. 17, T. 2 N. , R. 13 W. , on right

 bank 0.5 mile upstream from mouth of canyon and 1.5 miles northeast of Tujunga.

Drainage area. 1.2 sq mi, approximately.

Records available .--Creek: February 1917 to September 1934, October 1935 to September 

1957. Diversion: January 1931 to September 1957.

Gage . --Water-stage recorder and broad-crested weir. Altitude of gage is 2,430 ft (from 

topographic map) .

Average discharge. --3 9 years (1917-34, 1935-57), 0.14 cfs (101 acre-ft per year); median 

of yearly mean discharges, 0.1 cfs (70 acre-ft per year). Average combined discharge 

of creek and diversion, 25 years (1931-34, 1935-57) 0.38 cfs (275 acre-ft per year); 

median of combined yearly mean discharges, 0.2 cfs (140 acre-ft per year).

Extremes. --Maximum discharge during year, 0.3 cfs Feb. 23 (gage height, 1.17 ft); no 

flow for most of year.

1917-34, 1935-57: Maximum discharge, 265 cfs Mar. 2, 1938 (gage height, 4.6 ft), 

from rating curve extended above 3.2 cfs on basis of velocity-area studies; maximum 

gage height, about 11 ft Jan. 1, 1934 (caused by debris wave commonly called a mud 

flow) ; no flow at times for many years.

Remarks. Records good. Discharge measurements or observations of no flow generally made

 twice a month. City of Los Angeles diverts most of flow through two infiltration 

galleries upstream from station.

Cooperation. Records of diversion furnished by city of Los Angeles.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Tota:

Mean

Ac-ft

(t)

Oct.

0

0

0

2.5

Nov.

O

0

0

1.7

Dec.

O

0

0

1.5

Jan.

0

0

0

1.5

Feb.

-

0

0

0

1.9

Mar.

0

0

0

4.3

Apr.

0

0

0

3.9

May

0

O

0

3.1

June

0

0

0

1.7

July

0

o

0

0.4

Aug.

0

o

o

0.6

Sept.

O

0

0

0.7

Adjusted for diversion

Mean 

Cfsm 

In. 

Ac-ft 2.5 1.7 1.5 1.5 1.9 4.3 3.9 3.1 1.7 O.4 0.6 0.7

Observed

Calendar year 1956: Max O.9 Mln 0 Mean 0.006 Ac-ft 4.6 

Water year 1956-57: Max O Mln O Mean 0 Ac-ft 0

Adjusted

Calendar year 1956: Mean O.O4 Cfsm In. Ac-ft 32 

Water year 1956-57: Mean O.O3 Cfsm In. Ac-ft 24

t Diversion above station for Los Angeles municipal supply, in acre-feet, furnished by city of 

Los Angeles.
LOS ANGELES RIVER BASIN 117

Little Tujunga Creek near San Fernando, Calif.

Location.--Lat 34°16'30", long 118°22'20", In Tujunga Grant, on downstream side of 

Foothill Boulevard Bridge, 4 miles east of San Fernando, Los Angeles County.

Drainage area.--21.0 sq ml.

Records available.--December 1928 to September 1957.

Gage.--Water-stage recorder. Datura of gage Is 1,067.89 ft above mean sea level (levels 

Dy Los Angeles County Flood Control District).

Average discharge. 29 years, 2.49 cfs (1,800 acre-ft per year); median of yearly mean 

discharges, 0.7 cfs (510 acre-ft per year).

Extremes.--Maximum discharge during year, 112 cfs Feb. 28 (gage height, 3.82 ft); no 

flow most of year.

1928-57: Maximum discharge, 8,500 cfs Mar. 2, 1938; no flow for several months 

each year.

Cooperation. Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean Ac-rt

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1956: Max 123

Jan.

0

5

0

0

1.1

0

0

0

o

0

0

2.4

0~5.0

0

0

0

0

0

0

0

0

0

0

0

.3

0

0

0

0

8.8

0.28

17

Feb.

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.3

0

0

0

0

3.9

-

5.2

0.19

10

Mar.

0.5

fl.

0

0

0

0

0

0

.2

0

0

0

0

0

0

1.0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.7

0.05

3.4

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

0

.3

0

0

0

0

0

0

0

0

0

0

0.6

0.02

1.2

May

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o~1.7

0

0

0

0

0

0

0

0

0

0

0

1.7

0.05

3.4

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Mln 0 Mean 0.52 Ac-ft 381

Water year 1956-57: Max 5.0 Mln - Mean 0.05 Ac-ft 35
118 LOS ANGELES RIVER BASIN

Tujunga Creek below Hansen Dam, Calif.

Location.--Lat 34°15'10", long 118°23'20", on left bank of outlet channel of Hansen Dam, 

in Ex Mission San Fernando Grant, in city of Los Angeles, 0.1 mile upstream from 

Glenoaks Boulevard and 3 miles southeast of San Fernando, Los Angeles County.

Drainage area.--148 sq mi.

Records available. October 1940 to September 1957 in reports of Geological Survey. 

April 1932 to September 1940 (fragmentary) in annual reports of Los Angeles County 

Flood Control District.

Gage.--Water-stage recorder. Datum of gage is 943.32 ft above mean sea level, datum of 

T^929 (Corps of Engineers bench mark). Prior to Aug. 25, 1944, at site 0.1 mile downstream at different datum. Aug. 25, 1944, to Sept. 30, 1951, at site 0.3 mile upstream 

at different datum. Oct. 1, 1951, to Sept. 30, 1953, at present site at datum 1.00 ft 

higher.

Extremes. Maximum discharge during the year, 18 cfs Feb. 28 (gage height, 1.08 ft); no 

flow most of year.

1940-57: Maximum discharge, about 3,000 cfs Jan. 24, 25, 1952 (gage height, 

unknown) on basis of records of release at Hansen flood-control dam; no flow for parts 

of each year.

Remarks. Records poor. Discharge measurements or observations of no flow generally made 

twice a month. Flow regulated by Big Tujunga flood-control'reservoir (capacity, 

4,240 acre-ft) and by Hansen flood-control reservoir (capacity, 32,000 acre-ft). 

Several small diversions above station for domestic use and irrigation. No water 

diverted from outlet channel upstream from gage to spreading grounds during year; no 

water diverted during the 1956 calendar year. Most of the flow passing gaging station 

during the year was from precipitation on the paved drainage area between the station 

and the dam.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

0.97 0

1.0 1.5

1.1 22

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

O

0

Nov.

0

0

0

Dec.

O

0

0

Jan.

0

O

0

0

0

0

0

0

O

0

0

1.7

1.1

0

0

0

0

O

0

.3

0

0

4

1

2

5

1

0

.7

0

0

5.1

0.16

10

Feb.

00"

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

o

o

0

o

0

1.3

0

0

0

0

1.4

-

2.7

0.10

5.4

Mar.

0.7

0

O

0

0

0

0

0

.2

0

0

0

0

0

0

.1

0

0

0

0

o

0

0

0

0

0

o

o

o

0

0

1.0

O.O3

2.0

Apr.

o0"

0

0

0

0

o

o

0

0

o

o

o

0

0

0

.4

.1

O

_.JB

0

0

0

0

0

0

0

0

0

0

1.0

0.03

2.0

May

0

0

0

0

o

0

O

Oo-

.2

.8

O

0

0

0

o

0

0

.2

O

o

0

0

0

0

0

0

0

0

0

0

1.2

0.04

2.4

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

O

0

0

Calendar year 1956: Max 4.1 Mln O Mean 0.03 Ac-ft 25

Water year 1956-57: Max 1.7 Mln O Mean O.O3 Ac-ft 22
LOS ANGELES RIVER BASIN 119

Los Angeles River at Los Angeles, Calif.

Location.- -La t 34°04'55", long 118°13'35", on right bank near Pigueroa Street, Los Angeles, 

800 ft upstream from Arroyo Seco.

Drainage area. 510 sq mi.

Records available. October 1929 to September 1957.

. Water-stage recorder. Datum of gage is 292.58 ft above mean sea level (levels by 

OB Angeles County Flood Control District). Prior to May 26, 1938, at site 150 ft

downstream at different datura. May 26, 1938, to Dec. 8, 1939, at site 350 ft downstream at different datum..

Average discharge. 28 years, 56.9 cfs (41,190 acre-ft per year); median of yearly mean 

discharges, 34 cfs (24,600 acre-ft per year).

Extremes. --Maximum discharge during year, 22,200 cfs Feb. 23 (gage height, 7.24 ft); minImum daily, 0.2 cfs Aug. 30, 31.

1929-57: Maximum discharge, 67,000 cfs Mar. 2, 1938; no flow for several periods 

in earlier years.

Remarks . Flow regulated by Hansen and Sepulveda flood-control reservoirs (combined capacIty, 49,400 acre-ft) and several small flood-control reservoirs, City of Los Angeles 

stores imported Owens River water in 1 San Fernando and Chatsworth reservoirs and at 

times discharges imported water into Los Angeles River above station. Excess treated 

sewage effluent from Los Angeles Sanitation Department is released to channel about 

8 miles upstream. Many diversions above station for domestic use and irrigation.

Cooperation. Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.6

]e

.6

50

2.4

1.6

1.4

1.2

1.0

1.0

1.0

1.0

1.2 

1.0

1.0

,8

,8

.8

.8

,8

1.0

1,2

1.2

1.0

1.0

1.0

1.0

1,0

1.2

1,2

1,2

81.6

2.63

162

Mov.

1.2 T72-

1,2

1.0

1.0

1.2

1.2

1,2

1.0

1.0

.8

.8

,6 78"

,8

.8

,8

.8

.8

1,0

1.0

1.0

l.o

1.0

1,0

1,0

1.0

1.0

1.0

1.0

29.2

0,97

58

Dec,

1.0

1.0

1.0

1.0

3.1

14

T.o

1.4

1,0

1.0

1.0

1,2

1,2 

1.2

1.2

1,2

1.2

1.2

1.2

1.0

1.0

1,0

1.0

477

.8

.8

.8

.8

.8

1 8

47,5.

1,53

94

Jan,

0,8

.8

.8

,8

914

11

20

14

2.5

20

3,0

743

2.390 

20

2.2

1,8

1.6

1.4

1.4

278

35

1.4

32

150

21

393

159

38

830

31

7.2

6,122.7

198

12,140

Feb.

4.0

8.6

2.0

1.6

1.8

1.9

2.0

1.9

1.8

1.7

1.6

1.5

1.4 

1.3

1.3

1.3.

1.21

1.2

1.1

T7T

1,1

1.1

~2T 2.05Q 

1.6

1.6

1.6

563

2,661.3

95.0

5,280

Mar.

465

15

3.5

3,2

2.8

2.5

3.0

3.5

224

52

5.8

4.5

3.5

373

732 ~T,8

3.5

6.8

3.2

3.0

3.0

2.8 

2.8

2.8

3.2

3.5

3.5

5,4

3.2

2.5

1,582.1

51.0

3,140

Apr.

2.2

2.0

2.0

2.0

1.8

1.8

1,8

2.0

2.2

2.2

2.2

2.2

3.5 

3.0

2.2

1.8

57

481

13

432

59

5.8

5.0 

4.0

3,5

3,5

3.0

2.2

2.0

2.2

1,108,1

36.9

2,200

Calendar year 1956: Max 7,290 Min 0.6 Mean 44.4

May

1.8

2.0

1.8

1 6

ITS

1.6

2.2

2.5

2.5

2.8

433

I?

8.1

14

15

11

6.3

4.5

130

S.4

17

6.3

5.8 

4.0

3.5

3.2

2.S

2,2

2,0

1.8

1,8

783.1

25.3

1,550

June

2.5

2,8

2.2

2.0

2.0

2.0

1.6

1.4

1.6

12.

3.8

2.5

2.2 

2.0

1.8

1,8

1.4

1,4

1.2

174

1,4

1.4

1.4 

1,6

1.8

1.8

1.6

1,6

1.4

1.4

65.0

2.17

129

July

1.2

1.4

T7?

1.2

1.2

1.4

1.2

1.4

1.4

1.4

1.2

1.2

1.2 

1.0

1.0

.8

.8

Ts^6

!a

1.0

1.0

1.4 

1.4

1.4

1.4

1.2

1.2

1.0

.8

.8

34.8

1,12

69

Ac-ft 32,250

Aug.

0.6

.4

.6

.6

.8

.8

.6

.8

.8

it°-

.8

.8

,S

,8

.6

.6

.8

1.0

,8

1.0

1,0

.8

.6

,6

,6

.8

,6

,4

,4

72" .2

21,2

0.68

42

Sept.

0 4 ~7T

!4

.4

-t£.

.6

.6

.6

.4

.4

.4

.4

.4

.4

.4

.4

,4

.4

.4

.4

,4

,8

.4 

.4

.4

.4

,4

.4

,4

,4

13.0

0.43

26

Water year 1956-57: Max 2,390 Min 0,2 Mean 34.4 Ae-ft 24,890
120 LOS ANGELES RIVER BASIN

Arroyo Seco near Pasadena, Calif.

Location. Lat 34°13'20", long 118°10'36", near north line of sec. 31, T. 2 N., R. 12 W., 

on right bank 1.5 miles upstream from Millard Canyon and 5.5 miles northwest of 

Pasadena.

Drainage area. 16.4 sq mi.

Records available. December 1910 to September 1957.

Gage. Water-stage recorder and broad-crested weir. Datum of gage is 1,397.88 ft above 

mean sea level, datum of 1929. Prior to Oct. 1, 1916, staff gage at different datum. 

Oct. 1, 1916, to Oct. 19, 1945, water-stage recorder at datum 4.00 ft lower.

Average discharge. 43 years (1913-15, 1916-57), 9.02 cfs (6,530 acre-ft per year); median 

of yearly mean discharges, 4.8 cfs (3,500 acre-ft per year).

Extremes.--Maximum discharge during year, 158 cfs Feb. 23 (gage height, 2.84 ft); no flow 

far many days.

1910-57: Maximum discharge, 8,620 cfs Mar. 2, 1938, from slope-area determinations; 

no flow at times some years.

Remarks. Records good. Discharge measurements generally made weekly. Minor regulations 

at debris dam 1.5 miles upstream.

Cooperation. Ten discharge measurements furnished by Los Angeles County Flood Control 

District.

Rating table, water year 1956-57 (gage height, In feet,

and discharge. In cubic feet per second)

(Shifting-control method used Dec. 15-18,

Jan. 13, 14, Feb. 10-12, Apr. 13-16)

0.50 

.55 .2

.7

2.5

5.0

1.0 

1.3 

1.6 

1.9

Discharge, In cubic feet per second, water year October 1956 to September 1T57

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

.5

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

.1

.1

.1

.1

.1

.1

.1

.2

.1

3.1

0.10

6.1

Calendar yea

Nov.

0.1

.1

.1

.1

.1

.1

.1

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

72

.2

.2

.1

.1

.1

.1

.1

.2

.1

.1

3.4

0.11

6.7

Dec.

0.1

.'l

.1

.3

.5

75

.2

.2

.2

.3

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5.5-

.5

12.4

0.40

25

- 1956: Max 310

Jan.

~75 0.5

.5

.5

.8

.8

.8

1.0

1.0

1.3

1.3

2.9

~5.4 53

2.3

1.3

1.0

1.0

.7

1.1

2.1

1.7

1.5

2.1

2.3

6.4

5.4

3.4

4.7

3.0

3.0

113.3

3.65

225

Feb.

2.7

2.5

2.3

1.9

1.7

1.7

1.7

1.7

1.5

1.2

1.5

1.6

1.0

TTff

1.1

1.5

1.9

1.9

2.1

2.1

1.9

1.9

43

IT

6.0

6.3

4.7

9.1

-

118.5

4.23

235

Mar.

9.5

575

5.0

.7

.4

.0

.7

.0

.2

.0

.0

.0

.7

.7

.2

.3

.2

.0

.4

.2

.0

.4

2.7

2.7

2.3

2.1

1.9

1.7

1.7

1.7

1.5

124.9

4.03

248

Apr.

1.5

1.3

1.3

1.3

1.1

1.0

T75

1.0

1.0

1.0

1.1

l.l

1.1

l.l

1.3

1.3

1.9

5. '4

377

4.5

5.2

4.2

3.0

2.5

2.1

1.7

1.3

1.3

1.3

1.3

57.9

1.93

115

May

1.3

1.3

1.3

1.3

1.1

1.1

1.3

1.3

1.7

4.8

14

8.7

5.0

4.2

3.6

2.7

2.3

2.3

15

T.4

6.6

5.7

5.4

5.0

4.2

3.7

3.2

3.2

3.0

3.0

2.5

127.2

4.10

252

June

1.9

1.5

1.1

.7

.7

.7

.7

1.1

1.3

2.1

1.9

1.1

1.1

1.3

1.1

1.0

.5

.3

7J

.3

.3

.4

.4

.4

.4

.3

.3

.4

.4

.3

24.3

0.81

48

July

~X0.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

TS

0

0

0

0

.1

0

0

0

2.4

0.08

4.8

Aug.

0

TS

0

0

0

0

.1

7T

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.6

0.02

1.2

Sept.

0

0

0

Min 0 Mean 2.93 Ac-ft 2,130

Water year 1956-57: Max 53 Min 0 Mean 1.61 Ac-ft 1,170

Peak discharge (base, 150 cfs) . Feb. .23 (8:30 a.m.) 158 cfs (2.84 ft).
LOS ANGELES RIVER BASIN 121

Los Angeles River near Downey, Calif.

Location (revised). Lat 33°56'57", long 118°10'24", in San Antonio Grant, on right bank 

400 ft downstream from Pirestone Boulevard Bridge, 1 mile upstream from Rio Hondo, 

and 2.5 miles west of Downey, Lo's Angeles County. Prior to Dec. 12, 1956, at site 

400 ft upstream.

Drainage area. 614 sq mi.

Records available. March 1928 to September 1957.

Gage. Water-stage recorder. Datum of gage is 96.12 ft above mean sea level (levels by 

Los Angeles County Flood Control District). Prior to Apr. 11, 1938, at site 1,600 ft 

downstream at different datum. Apr. 11, 1938, to Nov. 3, 1949, at site 400 ft upstream 

at datum 0.96 ft lower, and Nov. 4, 1949, to Dec. 11, 1956, at site 400 ft upstream at 

datum 2.25 ft higher.

Average discharge. 29 years, 95.0 cfs (68,780 acre-ft per year); median of yearly mean 

discharges, 61 cfs (44,200 acre-ft per year).

Extremes. Maximum discharge during year, 24,600 cfs Feb. 23 (gage height, 5.90 ft); minimum daily, 3.8 cfs June 16.

1928-57; Maximum discharge 79,700 cfs Mar. 2, 1938; no flow parts of some, years.

Remarks. Flow regulated by Hansen and Sepulveda flood-control reservoirs (combined capacity, 49,400 acre-ft) and several small flood-control reservoirs. City of Los 

Angeles stores imported Owens River water in San Fernando and Chatsworth Reservoirs 

and at times discharges imported water into Los Angeles River. Many diversions above 

station for domestic use and irrigation.

Coc jeratlon. Records furnished by Los Angeles County Flood Control District and reviewed 

:y Geological Survey.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

10

10

10

58

20

12

10

9.0

9.0

9.0

9.0

10

10 

8.5

7.5

11

11

9.1

7.5

10

8.0

6.8

9.0

9.0

9.0

12

10

10

10

9.0 

10

353.4

11.4

701

Nov.

9.5

9.5

8.2

7.0

6.5

7.0

8.0

8.8

9.0

10

8.2

8.0

9.0 

11

10

10

9.5

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

9.0

11

12

12

13_

278.2

9.27

552

Dec.

14

11

10

12

50

155

To

20

12

12

11

12

12 

12

8.1

8.1

11

12

11

12

12

8.9

6.9

7.4

5.9

9.6

12

12

8.1

7.4 

8.1

533.5

17.2

1,060

Jan.

10 7.4

12

13

1,040

42

33

61

26

121

20

557

5,960 

70

16

12

10

10

10

367

68

14

32

163

43

384

124

118

787

113 

22

8,265.4

267

16,390

Feb.

13

13

10

9.6

8.9

10

10

9.6

7.4

6.9

9.6

10

10 

9.6

9.6

7.4

8.1

10

11

10

10

13

2.420

61

24

19

14

671

3,425.7

122

6,790

Mar.

659

49

23

17

16

13

11

11

145

152

29

24

18 

12

12

903

46

28

32

20

10

10

9.6

8.9

12

14

15

U

16

9.6

7.4

2,346.5

75.7

4,650

Apr.

8.1

11

12

12

12

9.6

8.9

10

13

14

13

11

9.6 

8.9

12

12

42

~55 664

356

300

18

13

13

11

11

11

10

10

9.9

1,705.0

56.8

3,380

May

9.7

9.5

10

9.6

8.9

10

12

13

12

14

348

?5S

27 

24

34

22

16

8.9

220

27

56

18

17

17

15

11

12

11

11

6 . 9

774

1,247.9

40.3

2,480

June

6.4

5.4

6.9

10

8.9

10

9.6

7.4

5.9

29

20

16

16 

9.6

5.9

3.8

570

6.1

7.3

8.4

9.6

11

7.4

11

12

14

13

14

7.4

5.4

302.4

10.1

600

July

11

15

12

8.1

9.6

10

7.4

9.6

12

13

13

14

9.6 

7.4

5.9

12

12

10

10

8.9

6.4

8.1

12

12

12

12

11

11

10

9.4 

8.7

323.1

10.4

641

Aug.

8.1

8.9

7.4

6.4

7.4

8.4

9.5

10

11

11

11

11

11 

11

11

11

11

11

11

11

11

11

12

To

10

12

12

7.4

8.9

8.1 

8.9

309.4

9.98

614

Sept.

6.4

8.9

12

12

11

11

8.9

7.4

9.6

11

12

12

14 

13

11

13

13

12

12

11

7.4

5.9

10

10

10

8.9

8.9

6.4

4.8

7.4

300.9

10.0

597

Calendar year 1956: Max 12,000 Min 5.9 Mean 84.6 Ac-ft 61,400

Water year 1956-57: Max 3,960 Min 3.8 Mean 53.1 Ac-ft 38,460
122 LOS ANGELES RIVER BASIN

Sawpit Creek near Monrovia, Calif.

LQpatiQh. Lat 34°10 I 23", long 117°59 I 1811 , in SW^SE^NWi sec. 13, T. IN., R. 11 W., on 

~Iei't Dank 0,1 mile downstream from Monrovia Creek, 0.3 mile downstream from Sawpit Dam, 

and 1.7 miles north of Monrovia.

Drainage .area. 5.3 sq ihi, approximately.

Records available. November 1916 to September 1957.

gftge. Water-stage recorder and broad-crested weir. Altitude of gage is 1,100 ft (from 

"topographic map). Nov. 8, 1916, to Nov. 19, 1925, and Apr. 12 to Oct. 29, 1938, waterstage recorder at site 0.1 mile upstream at different datum. Nov. 20, 1925, to Mar. 2, 

1938 (destroyed by flood), water-stage recorder at site 0.1 mile downstream at different datum. Oct. 30, 1938, to Oct. 3, 1951, water-stage recorder at present site at 

datum 1.00 ft higher.

Average discharge.. 40 years (1917-57), 1.10 cfs (796 acre-ft per year); median of yearly 

mean discharges, 0.5 cfs (360 acre-ft per year). Average combined discharge of creek 

and diversion, 40 years, 2.4? cfs (1,790 acre-ft per year); median of combined yearly 

mean discharges, 1.8 cfs (1,300 acre-ft per year).

Extremes.-'Maximum discharge during year, 14 cfs Jan. 13 (gage height, 2.65 ft); no flow 

for Several months.

1916-57: Maximum discharge, about 2,000 cfs Apr. 7, 1926, estimated from flow of 

Roger8 Creek} no flow parts of most years.

Remarks. Records good. Discharge measurements or observations of no flow generally made 

tJWcTor more times a month. Blow regulated by Sawpit flood-control reservoir (capacity, 

320 aore-ft). Figures of daily discharge do not include water diverted above station 

by city of Monrovia from Monrovia Creek.

Cooperation. '-Eleven discharge measurements furnished by Los Angeles County Flood Control 

District,

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ttf

OCt,

0

0

0 

40

Nov.

0

0

0 

39

Dec.

0

0

0 

40

Jan 4

0 

0

0

0

0

0

0

0

0

0

.1

.2

4.6 '" 7J

.2

.2

.1

.1

.1

.1

.1

0

0

0

0

si

0

0

0

0 

0

S.3

0,17

11 49

Feb.

 0.2 

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

3.0

1.5

1.4

1.1

1.0

1.0

-

-------

14.1

0.50

28 

46

Mar.

tt

.8

.8

.6

.5

.5

.6

.8

.6

.5

.4

.4

.3

.3

.6

.6

.4

.3

.2

.3

.2

.2

.2

.1

.1

0

0 

0

IE. 5

0.40

25 

108

Apr.

§

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

.2

.2

.4

TT

0

0

0

0

0

0

0

0

1.2

0.04 1.4

30

May

0 

0

0

0

0

0

0

0

0

0

.2

.6

.4

.3

.1

0

0

0

~T3~ 1.2

.2

0

0

0

0

0

0

0

0

0 

0

3.3

0.11

6.5 

62

June

0

0

0 

52

July

0

0

0 

40

Aug.

0

G

0 

36

Sept.

0

Q

»!

Mean 

Cfsm 

In. 

A<s-ft 40

Adjusted for diversion

39 40 60 74 133 32 66 S2 40 36 36

Observed

Calendar yeaf 1956: Ma* 44 Mln 0 Mean 0.41 Ac-ft 298 

Water year 1956-B7: Ma* 3.6 Mln 0 Mean 0.10 Ac-ft 73

Adjusted

Calendar year 1956: Mean 1.18 Cfsm In. Ac-ft B5S 

Water year 1956-57: Mean 0.90 Cfsm In. Ac-ft 650

t Diversion above station for Monrovia Municipal supfciy', In acre-feet, furnished by eity Of 

Monrovia.
LOS ANGELES RIVER BASIN 123

Santa Anita Creek near Sierra Madre, Calif.

Location. Lat 34°11'30", long 118°00'59", In SW^NE^NE^ sec. 10, T. IN., R. 11 W., on 

right bank at head of Hermits Palls, 0.9 mile upstream from Big Santa Anita Dam and 

3 miles northeast of Sierra Madre.

Drainage area. 10.5 sq mi.

Records available. July 1916 to September 1957.

Gage. Water-stage recorder. Datum of gage is 1,475.3 ft above mean sea level (levels

By U. S. Forest Service). Prior to Mar. 2, 1938, at same site at datum 0.4 ft lower

(destroyed by flood). Mar. 18 to Sept. 27, 1938, at same site at datum 0.7 ft higher.

Average discharge. 41 years, 5.64 cfs (4,080 acre-ft per year); median of yearly mean 

discharges, 3.6 cfs (2,600 acre-f-t per year).

Extremes. Maximum discharge during year, 169 cfs Jan. 13 (gage height, 2.88 ft); minimum dally, 0.4 cfs for many days.

1916-57: Maximum discharge, about 5,200 cfs Mar. 2, 1938, based on inflow to Big 

Santa Anita flood-control reservoir; practically no flow Aug. 18 to Sept- 14, 1929.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Discharge measurements generally made twice a month.

Rating table, water year 1956-57 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 13 to May 8)

0.85 

.9

1.0

1.1

0.4

.8

2.0

3.8-

1:2 

1.4 

1.6 

2.0

6.3

14

25

56

Discharge, In cubic feet per second., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

~78" 0.7

.9

2.6

1.4

1.3 

1.2

1.1

1.0

.9

.9

1.0

al.O

al.O

al.O

al.O

al.O

al.O

al.O

al.O

al.O

al.l

al.l

al.l

al.l

al.l

al.l

al.l

al.l

1.1 

1.2

33.9

1.09

67

Nov.

1.2

TT2

1.2

1.1

1.1

1.0 

.9

.9

.8

.7

.8

.8

.9

1.0

1.0

.9

.9

.8

.9

.9

.9

.9

.8

.8

.8

.7

.7

.7

.7

.7

26.7

0.89

53

Dec.

~T¥ 0.7

.7

.8

1.9

fct

1.0

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

 8

.9

29.8

0.96

59

Calendar year 1956: Max 213

Jan.

0.9

T9

.9

1.1

3.3

1.8 

1.5

1.7

1.4

2.3

1.8

3.6

50

6.0

4.7

3.8

3.4

3.0

2.8

2.8

2.8

2.4

2.4

3.2

3.2

6.2

4.3

3.8

4.0

3 .8

.3.6

137.4

4.43

273

Feb.

3.4

3.2

2.8

2.S

2.6

2.4 

2.3

2.3

2.3

2.3

2.3

2.1

2.1

2.3

2.1

2.1

2.1

2.1(

2.0

2^

2.0

2.0

~7.5 36

6.3

5.7

5.2

S.6

-

120.9

4.32

240

Mln 0.6

Mar.

iil

7.2

6.6

6.0

5.5

5.0 

4.7

4.7

7.2

5.7

4.7

4.7

4.7

4.3

4.0

5.0

4.0

3.8

3.6

3.6

3.8

3.4

3.0

2.8

2.8

2^6

2.6

2.6

2.6

2.6

£ 6

136.1

4.39

270

Apr.

2.6

2.6

2.4

2.4

2.4

2.4 

2.4

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

3.0

4.3

2^

3.6

3.8

3.2

3.2

3.2

2.8

2.6

2.4

2.4

2.3

2.3

79.6

2.65

158

May

2.3

2.3

2.3

2.3

2.3

2.3 

2.3

2.4

2.4

2.8

4.3

3.4

3,2

3.4

3.2

2.6

2.6

3.2

10

4.5

4.5

4.0

3.8

3.4

3.4

.2.8

2.6

2.8

2.8

2.6

2.6

99.4

3.21

197

June

2.3

2.0

1.8

i.5

1.5

1.7 

2.0

2.0

2.4

5.4

2.6

2.3

2.4

2.4

2.4

2.3

2.0

1.7

1.7

1.7

1.8

2.0

1.7

1.5

1.5

1.5

1.5

1.5

1.5

1.5

58.1

1.94

115

July

1.4

1T3

1.3

1.2

1.2

1.3 

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.2

1.2

1.1

1.0

1.0

.9

T9

.9

1.1

1.1

1.0

1.0

.9

.9 

.9

34.6

1.12

69

Aug. '

~0.9

.8

.8

.8

.8 

.8

.8

.8

.7

.7

.6

.6

.6

.5

.4

.4

.4

.4

.5

.5

.5

.4

.4

.4

.5

.5

.5

.6

.6 

.6

18.6

0.60

37

Sept.

0.6

.6

.6

.5

.5

.4 

.4

.4

.4

.5

.4

.5

.5

.6

.6

.6

.6

.6

.7

77

.6

.5

.4

.4

.5

.5

.5

.5

.5

.5

15.6

0.52

31

Mean 3.11 Ac-ft 2,260

Water year 1956-57: Max 50 Mln 0.4 Mean 2.17 Ac-ft 1,570

Peak discharge (base, 40 cfs). Jan. 13 (3 a.m.) 169 cfs (2.88 ft)j Feb. 23 (7 a.m.) 159 cfs

(2.80 ft).____________________________________________________________________

a No gage-height record; discharge estimated on basla of weather records and records for nearby

stations.
124 LOS ANGELES RIVER BASIN

Little Santa Anita Creek near Sierra Madre, Calif.

Location. La t 34 0 11'13"_, long 118 0 02'35", in SE£SW£NW£ sec. 9, T. IN., R. 11 ¥., on 

right bank 1.3 miles upstream from Sierra Madre Dam and 2 miles north of Sierra Madre.

Drainage area.--1.9 sq mi, approximately. 

Records available. April 1916 to September 1957.

Gage. Water-stage recorder. Concrete control since Aug. 3, 1926. Altitude of gage is 

2,200 ft (from topographic map). Prior to Apr. 7, 1926, water-stage recorder at different datum (destroyed by flood).

Average discharge. 40 years (1916-26, 1926-57), 0.86 cfs (623 acre-ft per year); median 

of yearly mean discharges, 0.5 cfs (360 acre-ft per year).

Extremes. Maximum discharge during year, 37 cfs Feb. 23 (gage height, 1.75 ft); minimum 

daily, 0.1cfs for many days.

1916-57: Maximum discharge, 536 cfs Mar. 2, 1938, computed on basis of inflow to 

Sierra Madre flood-control reservoir; no flow for periods in some years.

Remarks. Records good. Discharge measurements generally made twice a month.

Rating table, water year 1956-57 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Apr. 23 to May 2, May 18-25)

0.5

.6

0.9

1.0

1.1

2.6 

4.1

6.2

1.5

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

7T

.1

.4

7?

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

4.5

0.15

8.9

Nov.

0.2 3

.2

.2

.2

.2

.2

.1

7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.7

0.12

7.3

Dec.

0.1

7T

.1

.1

.i!

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.;.1.1

3.4

0.11

6.7

Calendar year 1956: Max 11

Jan.

0.1

7T

.1

.1

.5

.2

.2

.2

.2

.4

.2

.7

5.1 %

.5

.5

.4

.3

.3

.3

.3

.3

.3

.4

.4

.6

.6

.6

.7

.7

.7

16.6

0.54

33

Feb.

0.6

.6

.6

.5

.5

.5

.4

.4

.4

.4

~3.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

~rr 4.9

.6

.5

.7

1.1

-

17.0

0.61

34

Mar.

1.2

.7

.7

.7

1.0

.8

.7

.7

1.9

ITT

.9

.9

.8

.8

.9

.8

.7

.7

.7

.7

.7

.7

.6

.6

Ji

.5

.5

.5

.5

.5

.5

23.5

0.76

47

Apr.

 £0.4

.5

.5

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.8

.8

.6

-li

.8

.8

.8

.7

.6

.6

.5

.5

.5

.5

17.1

0.57

34

May

0.5

.5

.4

74

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.4

.4

.5

1.9 -79-

.8

.8

.8

.7

.7

.6

.5

.5

.5

.5

.5.

17.7

0.57

35

June

~T0.5

.4

.4

.4

.4

.4

.4

.4

.5

.5

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

J2

.2

.2

.2

.2

.2

10.4

0.35

21

July

~30.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

71

.1

.1

.1

.1

.1

.1

.1

.1

.1

5.1

0.16

10

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.1

0.10

6.1

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.0

0.10

6.0

Mln 0.1 Mean 0.40 Ac-ft 287

Water year 1956-57: Max 5.1 Mln O.I Mean 0.34 Ac-ft 249

Peak discharge (base, 7.0 cfs). Jan. 13 (3 a.m.) 30 cfs (1.60 ft); Feb. 23 (6:30 a.m.) 37 cfs 

(1.75 ft); Mar. 9 (4 p.m.) 7.8 cfs (1.17 ft).
LOS ANGELES RIVER BASIN 125

Eaton Creek near Pasadena, Calif.

Location. Lat 34°11'37", long 118°06'13", in SWijSE^SEij sec. 2, T. 1 N., R. 12 W., on 

right bank at mouth of canyon, Just upstream from bridge on old Mount Wilson toll road 

and 4.5 miles northeast of Pasadena.

Drainage area. 6.5 sq mi, approximately.

Records available. Creek: March 1918 to September 1957. Diversion: July 1923 to September 1957.

Gage . Water-stage recorder and broad-crested weir. Altitude of gage is 1,230 ft (from 

Topographic map). Prior to Oct. 28, 1938, water-stage recorder at site 75 ft downstream at different datum.

Average discharge. 39 years, 2.22 cfs (1,610 acre-ft per year); median of yearly mean 

discharges, 1.0 cfs (720 acre-ft per year). Average combined discharge of creek and 

diversion, 34 years, 3.39 cfs (2,450 acre-ft per year); median of combined yearly mean 

discharges, 2.2 cfs (1,600 acre-ft per year).

Extremes. Maximum discharge during year, 65 cfs Jan. 13 (gage height, 1.39 ft); no flow 

most of year/

1918-57: Maximum discharge, 2,400 cfs Mar. 2, 1938, from record of inflow to Eaton 

flood-control reservoir; no flow at times each year.

Remarks. Records fair except those below 10 cfs or for periods of no gage-height record, 

which are poor. Discharge measurements or observations of no flow generally made twice 

a month. Figures of daily discharge do not include water diverted above station by 

city of Pasadena. In addition, 92 acre-ft was diverted by the city from two infiltration galleries, one 800 ft upstream and the other 500 ft downstream from station.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

OCt.

0

0

0

11

Nov.

0

0

0

15

Dec.

0

0

0

18

Jan.

0

3

0

0

0

0

0

0

0

0

0

0

 

22 .8

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

22.9

0.74

45

63

Feb.

0

7J

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

9.6

4T2

2.0

0

0

4.0

-

19.8

0.71

39

79

Mar.

4.9

tt

1.9

0

C

0

0

0

1.0

1.0

0

0

0

0

0

1.4

al.5

al

a. 5

0

0

0

0

0

0

0

0

0

0

0

0

17.1

0.55

34

88

Apr.

0

7J

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

a!"1.7

.7

1.2

0

0

0

0

0

0

0

0

0

4.6.

0.15

9.1

53

May

0

C

0

0

0

0

0

0

0

0

.4

al

a. 2

0

0

0

0

0

3.6

T3

1.0

ao

0

0

0

0

0

0

0

0

0

8.4

0.27

17

73

June

0

0

0

49

July

0

0

0

16

Aug.

0

0

0

8.0

Sept.

0

0

0

7.1

Adjusted for diversion

Mean

Cfsm

In.

Ac-ft 11 15 18 108 118 122 62 90 49 16 8.0 7.1

Calendar year 1956: Max 100 

Water year 1956-57: Max 22

Mln 

Mln

Mean 0.45 

Mean 0.20

Ac-ft 326 

Ac-ft 144

Adjusted

Calendar year 1956: Mean 1.22 

Water year 1956-57: Mean 0.86

Ac-ft 889 

Ac-ft 624

Peak discharge (base, 55 cfs). Jan. 13 (3:30 a.m.) 65 cfs (1.39 ft); Feb. 23 (8 a.m.) 64 cfs 

(1.38 ft).

t Diversion above station, In acre-feet, for Fssadens municipal supply, furnished by city of 

Pasadena.

a No gage-height record; discharge estimated on bssls of record for Arroyo Seco near Faaadena 

engineer's notes.
126 LOS ANGELES RIVER BASIN

Rio Hondo above Whittier Narrows Dam, Calif.

Location. Lat 34°03'30", long 118°04'15", in Potrero Grande Grant, on right bank

0.3 mile downstream from Garvey Avenue, 0.4 mile downstream from Rubio Wash, and

2.2 miles west of El Monte, Los Angeles County.

Records available.--February 1956 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 220 ft (from topographic map).

Extremes.--Maximum discharge during year, 7,120 cfs Feb. 23 (gage height, 4.05 ft); no 

flow for many days.

1956-57: Maximum discharge, that of Feb. 23, 1957; no flow for many days in each 

year.

Remarks. Records good. Discharge measurements generally made three times a month or 

more often during storm periods. Flow regulated by Big Santa Anita, Sawpit, and 

Eaton flood-control reservoirs (combined capacity, 1,700 acre-ft) , and Sierra Madre, 

Las Flores, and Rubio debris basins. Many diversions above station for domestic use 

and irrigation. At times flow is diverted from San Gabriel River below Santa Fe Dam 

to Rio Hondo above station.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, In cubic feet per second)

1.02

1.1

1.2

1.3 

1.5 

1.7

.4 

1.6 

3.4 

8.2

15

1.8

1.9

2.0

2.1 

2.3 

2.6

107

180

400

920

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

0

.1

.1

 

74 .8

.2

0

.1

.3

.1

0

0 

0

0

0

0

0

O

0

o

0

.1

o

.1

0

0

0

.2

0

0

0

76.1

2.45

151

Nov.

0

0

0

o

0

0

0

.1

.6

0

0 

0

.1

0

.5

.1

0

0

0

0

0

0

.2

.2

.5

.2

O

0

0

2.6

0.09

5.2

Dec.

0

0

0

55

5.1

.3

0

0

0

0

.1 .1.1

.2

o

0

.1

0

.1

.1

.1

0

0

0

0

.2

.2

.3

.1

.1

62.2

2.01

123

Calendar year 1956: Max -

Jan.

~.5 o

1.1

2.4

105

.1

6.3

1.4

.2

131

.8

304 

812

.8

.4

.1

.1

.1

.1

61

1.3

.2

3.7

13

1.6

76

12

5.6

48

.9

.1

1,589.8

51.3

3,150

Peb.

0.1

!l

.1

.4

.6

.-6

.6

.7

.2

.6

.6 

.6

.7

1.0

.9

.6

.8

1.4

1.2

.9

1.2

596

.8

.1

.1

.1

148

-

759.2

27.1

1,510

Mar.

jg7

.9

.1

.2

.2

.1

.2

.2

115

1.6

.1

.1 

0

0

0

117

.2

.2

0

0

.1

0

0

0

0

0

.1

0

.1

.1.1

363.6

11.7

721

Apr.

0.2

.5

.5

.3

.3

.5

.1

.1

.1

.1

.1

.1 

168

376

588

388

197

76

.5

138

21

.7

.5

0

0

0

.2

.1

.2

0

1,756.9

58.6

3,480

May

0

!a

.2

.1

.1

.1

.3

0

1.4

104

.4 

.2

17

.2

0

.1 11

89

.5

3.

( ;

229.5

7.40

455

June

0.1

.1

1.7

1.3

.8

1.0

.7

.5

2.2

6.2

.3

.7 

1.0

.1

.1

0

.2

.2

.9

.9

.5

0

0

.5

1.4

3.7

6.6

Fa

3.3

.3

41.4

1.38

82

July

1.8

.3

.8

.1

78

.6

.1

E.3

1.4

7.3

1457?

2.8

.3

3.4

2.3

2.1

1.2

.9

.6

.3

1.3

1.4

1.2

1.4

1.6

.6

.1

.3

.6

.5

52.5

1.69

104

AUg.

0.7

.7

.2

0

.4

1.3

1.2

.7

.7

.1

0

.7 

.7

.5

.5

.3

.1

0

.5

.9

.8

.8

1.3

.7

.2

.5

1.4

4.9

6.0 1 c 1 . O

.7

29.1

0.94

58

sept.

0.3

.2

.2

1.3

1.9

2.3

.5

a

.8

1.0

2.3

M1.8

a

.7

.8

.8

.9

.9

.4

.1

.6

.9

.8

.7

.9

.2

O

.2

25.3

0.84

50

Min - Mean - Ac-ft -

Water year 1956-57: Max 812 Mln 0 Mean 13.7 Ao-ft 9,890
LOS ANGELES RIVER BASIN 127

Rio Hondo near Montebello, Calif.

Location. Lat 34°01 l 55n , long 118°04 t 15", in Potrero Grande Grant, on right bank 1,000 ft 

upstream from Mission Bridge and 2 miles northeast of Montebello, Los Angeles County.

Drainage area. 115 sq ml (excluding area above Santa Fe Dam). 

Records available. October 1928 to September 1957.

Gage. Water-stage recorder. Datum of gage Is 192.83 ft above mean sea level (levels by 

L~os Angeles County Flood Control District). Prior to Oct. 23, 1956, at datum 1.80 ft 

higher.

Average discharge.--29 years, 51.5 cfs (37,280 acre-ft per year); median of yearly mean 

discharges, 36 cfs (26,100 acre-ft per year).

Extremes. Maximum discharge during year, 8,250 cfs Feb. 23 (gage height, 7.72 ft); minImum dally, 2.8 cfs Aug. 21, 22.

1928-57: Maximum discharge, -28,000 cfs Mar. 2, 1938 (gage height, 14.63 ft, present datum); minimum, 0.3 cfs Dec. 1, 1933 (gage height, 3.11 ft, present datum).

Remarks. Flow regulated by Big Santa Anita, Sawplt, and Eaton flood-control reservoirs 

(combined capacity, 1,700 acre-ft) and Sierra Madre, Las Flores, and Ruble debris 

basins. Many diversions above station for domestic use and Irrigation. At times 

flow Is diverted from San Gabriel River below Santa Fe Dam to Rio Hondo.

Cooperation. Records furnished by Los Angeles County Flood Control District and 

reviewed by Geological Survey.

Revisions (water years). WSP 844: 1938(M).

Discharge, In-cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

3.2

3.2

3.2

~5.0 51 

4.5

4.5

4.5

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.1

4.2

4.3

4.4

4.5 

4.5

4.5

4.5

4.4

4.4

4.4

4.3

4.3

175.9

5.67

349

Nov.

4.3

4.1

3.9

3.8 

3.6

3.4

3.3

3.2

3.2

3.2

3.3

3.3

3.4

3.5

3.6

3.7

3.8

3.9

4.0

4.1

4.2

4.3

4.3 

4.3

3.8

4.0

3.7

4.3

113.5

3.78

225

Dec.

3.4

3.0

370

3.4 

86

24

7.6

4.9

4.9

4.7

4.7

4.7

4.7

5.2

5.2

4.9

4.7

4.5

4.7

4.7

4.7

4.5

4.5 

4.1

4.1

4.1

4.1

4.3

4.3

4.3

4.7

240.6

7.76

477

Jan.

4.5

4 f y

5^4

6.1 

193

5.2 12 '

6.2

5.4

241

8.9

566

1.080

11

S.2

7.8

8.2

7.8

7.0

87

7.0

5.8

11 

29

9.5

121

52

18

88

11

7 .8

2,415.1

77.9

4,790

Feb.

6.2

6.0

5.8

5.6

5.4

5.2

574

5.8

6.0

5.8

5.6

5.2

5.2

5.6

5.6

-5.6

5.6

5.4

5.6

5.8

5.6

5.6 913 ' 

12

S.5

7.8

6.6

304

-

1,375.5

49.1

2,730

Mar.

227

9.7

7.0

6.0 

6.2

6.2

6.2

6.2

154

21

7.8

7.4

7.0

6.6

6.6

~6.0 250

5.8

5.S

5.6

5.6

5.S

5.8 

5.6

5.8

5.8

5.6

5.4

5.4

819.7

26.4

1,630

Apr.

4.7

4.9

5.2

4.7 

4.7

4.7

4.5

4.5

4.5

4.5

4.5

4.3

178

374

5S6

598

283

198

7.0

27S

34

7.4

7.0 

5.6

5.6

5.8

6.0

5.6

6.2

5*6

2,246.5

74.9

4,460

May

5.4

5.4

5.2

4.9

4.5

iil

5T2

5.2

4.9

4.7

195

8.5

5.8

24

8.4

5.6

5.6

6.0

112

6.2

10

6.0

6.2 

6.0

6.0

6.0

5.4

5.2

5.2

4.7

4.3

491.6

15.9

975

June

4.5

4^5

4.5

4.9 

4.9

5.2

5.2

5.2

5.5

20

4.5

4.9

5.2

5.2

5.2

4.9

4.7

4.7

7.4

7.0

5.8

5.4

5.6 

5.2

4.9

4.9

4.9

4.7

4.7

4.5

168.5

5.61

334

July

4.9

4.9

4.9

4.7

4.5

4.5

4.3

4.5

4.5

5^2

4.7

4.5

4.1

5.4

5.4

4.1

4.1

4.0

4.0

4.0

3.5

3.5

4.1 

4.0

4.0

5.S

3.8

5.8

5.1

5.4

5.5

127.5

4.11

255

Aug.

3.4

3.5

3.7

3,4 

3.7

4.1

4.3

4.7

4.5

4.5

4.0

4.3

4.1

3.7

3.4

5.5

5.5

5.8

3.7

3.4

Z.8

2.8

3.5 

5.4

5.7

3.8

5.6

5.6

6.0

5.8

5.2

124.8

4.03

248

Sept.

4.5

4.0

4.0

H

5.2

5.6

5.6

6.0

8.2

7.8

7.8

8.2

8.2

7.0

7.8

7.S

8.5

8.9

871

7.4

6.2

6.2 

6.2

5.8

5.4

5.4

5.4

4.9

4.7

188.8

6.29

374

Calendar year 1956: Max 3,520 Mln 3.0 Mean 20.6 Ac-ft 14,970

Water year 1956-57: Max 1,O80 Mln 2.8 Mean 23.3 Ac-ft 16,840
128 LOS ANGELES RIVER BASIN

Mission Creek near Montebello, Calif

Location. Lat 34°01'45", long 118 0 04'07", in La Merced Grant, on upstream side of right 

abutment of San Gabriel Boulevard Bridge, 2 miles northeast of Montebello, Los Angeles 

County.

Drainage area. 6 sq mi, approximately.

Records available. October 1932 to September 1957 in reports of Geological Survey.

October 1929 to September 1932 in reports of Los Angeles County Flood Control District. 

Prior to October 1944, published as Rio Hondo Slough near Montebello.

Gage. Water-stage recorder. Altitude of gage is 195 ft (from topographic map).

Average discharge. 27 years (1929-37, 1938-57), 15.5 cfs (11,220 acre-ft per year); 

median or yearly mean discharges, 16 cfs (11,600 acre-ft per year).

Extremes. Maximum discharge during year, 8.9 cfs Nov. 15 (gage height, 6.64 ft); no flow 

Aug. 27, 28, Sept. 23.

1929-57: Maximum discharge not determined, occurred Mar. 2, 1938; minimum, that of 

Aug. 27, 28, Sept. 23, 1957.

Remarks. Flow is almost entirely from ground-water seepage. Increase in flow during 

period Oct. 30 to Nov. 21, 1956, resulted from pumping of ground water into channel 

during construction work. Flow partially regulated by outflow from Legg Lake.

Cooperation. Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

2B

29

30

31

Total

Mean

Ac-ft

Discharge, In cubic feet per second, water year October 1956 to September 1957

Oct.

1.4

1.3

1.2

1.1

1.2

1.5

1.7

1.9

2.2

2.6

3.0

2.9

2.9

2.3

2.2

2.1

2.2

2.8

3.2

3.1

2.5

2.8

2.8

2.9

2.3

1.4

1.0

1.0

1.0

4.8

4.9

70.2

2.26

139

Nov.

4.7

4.7

4.4

3.9

3.5

2.7

2.6

2.4

3.0

3.8

4.5

5.6

6.4

7.0

8.2

7.8

7.5

7.1

7.0

6.7

6.1

4.2

2.5

2.5

2.5

2.5

2.5

2.5

4.4

3.9

137.1

4.57

272

Dec.

3.1

370

2.9

2.4

2.1

1.7

1.7

1.7

1.6

2.4

3.1

2.7

2.2

2.1

1.9

2.1

2.1

2.1

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.1

2.1

2.2

2.2

2.2

2.2

69.3

2.24

137

Calendar year 1956 : Max lo

Jan.

2.2

2.2

2.1

2.6

3.2

3'.1

3.0

2.8

2.7

2.5

2.4

1.8

2.'o 1.9

2.0

2.1

2.0

2.1

2.1

2.2

2.3

2.3

2.3

2.4

2.7

3.1

2.7

2.7

2.7

2.1

2.3

74.6

2.41

148

Feb.

-^s 3.6

3.5

3.4

3.3

3.4

3.3

3.2

373

3.4

3.4

3.3

3.3

3.4

3.4

3.4

3.4

3.3

3.3

3.3

3.3

3.3

3.5

3.5

3.6

3.4

3.4

3.4

-

94.8

3.39

188

Mln 0.8

Mar.

3.8

3.6

3.5

3.4

3.4

3.5

3.8

4.0

4.1

4.1

4.2

772

4.2

4.0

3.8

3.9

3.8

3.9

3.8

3.8

3.8

3.8

3.8

3.6

3.4

3.4

3.3

3.1

3.1

3.0

370

114.1

3.68.

226

Apr.

3.0

3.1

3.1

2.9 376"

3.1

3.1

3.1

3.2

3.2

3.2

3.2

3.1

3.1

3.1

3.1

3.1

3.4

3.5

5.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.4

3.4

3.4

98.6

3.29

196

May

3.3

373

3.3

3.4

3.4

3.4

3.3

3.4

3.3

3.5

3.6

3.7

1,1 3.9

3.9

3.9

3.9

3.8

3.8

3.7

3.7

3.7

3.7

3.8

3.7

3.7

3.7

3.5

3.5

3.4

3.4

111.5

3.60

221

June

3.2

371

3.0

2.9

2.8

2.7

2.8

2.9

2.9

3.0

3.1

3.1

3.1

3.1

3.1

3.2

3.2

3.1

3.1

2.9

2.8

2.7

2.7

2.7

2.6

2.4

2.2

273

2.3

2.2

85.2

2.84

169

July

2.2

270

1.9

1.9

1.9

2.1

2.1

2.1

2.0

2.0

1.9

1.8

1.6

1.6

1.5

1.5

1.4

1.4

1.5

1.4

1.4

1.4

1.1

1.0

1.0

1.0

1.1

1.0

1.0

.9

1.0

47.7

1.54

95

Aug.

~79 0.9

.9

.9

.9

.9

.9

.8

.7

.8

.8

.7

.8

.8

.6

.6

.6

.7

.7

.7

.6

.7

.6

.4

.2

.1

0

0

.1

.3

.4

19.0

0.61

38

Sept.

~40.4

.4

.2

.2

.2

.2

.2

.1

.1

.2

.1

.2

.2

.1

.1

.3

.3

.3

.3

.3

.2

.0".1

.2

.1

.1

.1

.1

.1

5.S

0.19

12

Mean 3.37 Ac-ft 2,450

Water year 1956-57 : Max 8.2 Kin 0 Mean 2.54 Ac-ft 1,840
LOS ANGELES RIVER BASIN 129

Mission Creek below Whittier Narrows Dam, Calif.

Location. Lat 34°01'15", long 118°04 I 15", near north boundary of Paso de Bartolo Grant, 

on left bank about 500 ft downstream from Whittier Narrows Dam and 1.4 miles north of 

Pioo, Los Angeles County.

Records available. December 1955 to September 1957.

Gage. Water-stage recorder and Parshall flume. Datum of gage is 187.1 ft above mean 

sea level (Corps of Engineers' Survey).

Extremes. 1956-57: Maximum daily discharge, 6.0 cfs Jan. 10, 1956; no flow Aug. 24 to 

Sept. 1, Sept. 4-30, 1957.

Remarks. Records good. Discharge measurements generally made weekly. Plow is almost 

entirely from ground-water seepage. At times flow regulated by Whittier Narrows Dam; 

no regulation during 1957 water year.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

0.0 

.1 

.2 

.3

.5

.5 

1.3 

2.4 

5.4

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.8

278

2.8

2.8

2.8

2.8

2.6

2.6

2.6

2.5

2.5

2.5

2.4

2.0

1.7

1.7

1.5

1.5

1.5

1.4

1.0

1.1

1.1

1.0

1.0

.9

.9

.8

.8

.9

.1!

55.9

1.80

111

Nov.

1.0

2.5

2.5

2.6

2.6

2.8

2.8

2.9

3.1

3.1

3.2

3.2

3.3

3.3

3.3

3.3

3.2

3.3

3.3

3.3

2.9

2.3

1.6

1.3

1.0

.9

.6

78

.7

1.3

72.0

2.40

143

Dec.

2.0

1.8

1 .9

1.9

1.9

2.0

1.9

1.9

1.9

2.6

2.5

2.5

4.6

374

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.5

2.4

2.3

2.3

2.3

2.3

2.3

2 . 4

75.0

2.42

149

Calendar year 1956: Max 6.0

Jan.

2.4

2.4

2.4

2.5

275

2.5

2.5

2.5

2.4

2.4

1.9

1.8

2.3

1.8

1.8

1.7

T7f

1.7

1.8

1.9

2.0

2.0

2.0

2.0

2.0

2.2

2.2

2.2

2.2

2.2

2.2

66.1

2.13

131

Feb.

2.3

2.3

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.3

2.3

2.3

2.3

2.2 '2.0

1.9

1.8

1.8

-

64.2

2.29

127

Mln 0.4

Mar.

1.5

1.5

1.6

1.7

1.7

1.7

1.8

T78

1.7

1.6

1.5

1.5

1.5

1.5

1.6

1.6

1.6

1.5

1.5

1.2

1.2

1.0

T^

1.1

1.2

1.2

1.1

1.2

1.3

1.7

1.8

45.4

1.46

90

Apr.

1.8

1.8

1.9

2.0

2.0

2.0

2.0

2.0

2.0

2.2

2.2

2.3

2.2

1.9

2.0

1.4

1.0

1.4

3,1

3.1

3.1

3.1

3.1

3.1

3.1

3.2

4.5

T73

1.0

.8

66.6

2.22

132

May

1.4

1.6

1.4

1.1

T7T

1.2

1.2

1.2

1.7

1.7

1.7

1.9

2.0

2.2

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.4

2.4

2.5

2.6

2.9 3_a

3.1

2.9

g 9

64.6

2.08

128

June

2.9

2.9

2.9

2.8

2.8

2.8

2.6

2.5

2.5

2.4

2.4

2.4

2.4

2.4

2.4

2.3

2.2

2.0

2.0

2.0

1.9

2.0

2.0

2.0

1.9

1.8

TTs

1.8

1.8

1 ,8

68.4

2.28

136

July

1.8

T78

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.5

1.4

1.3

1.3

1.3

1.3

1.3

1.2

1.2

1.1

1.1

1.1

1.0

.9

.7

.6

.6

.7

.7

.6

.6

.5

37.1

1.20

74

Aug.

"75 0.5

.5

.5

.5

.5

.5

.5

.4

.5

.5

.5

.5

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

0

0

0

0

0

0

0

0

8.9

0.29

18

Sept.

0

.1

7T

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.007

0.4

Mean 2.14 Ac-ft 1,550

Water year 1956-57: Max 4.6 Mln 0 Mean 1.71 Ac-ft 1,240
130 LOS ANGELES RIVER BASIN

Rio Hondo near Downey, Calif.

Location. La t 33°56'46", long 118 0 09'44", in San Antonio Grant, on left bank 700 ft

upstream from Stewart and Gray Road Bridge, 0.6 mile upstream from mouth, and 1.5 miles 

west of Downey, Los Angeles County.

Drainage area. 140- sq mi (excluding area above Santa Fe Dam) . 

Records available. March 1928 to September 1957.

Gage . Water-stage recorder. Datum of gage is 91.4 ft above mean sea level (levels by 

L~os Angeles County Flood Control District). Prior to Oct. 31, 1951, at site 700 ft 

downstream at different datum.

Average discharge. 29 years, 26.3 cfs (19,040 acre-ft per year); median of yearly mean 

discharges, 11 cfs (8,000 acre-ft per year).

Extremes . Maximum discharge during year, 6,560 cfs Feb. 23 (gage height, 4.98 ft); no 

flow most of year.

1928-57: Maximum discharge, 24,400 cfs Mar. 3, 1938 (gage height, 13.5 ft, site 

and datum then in use); no flow part of each year.

Remarks. Flow regulated by Big Santa Anita, Sawpit, and Eaton flood-control reservoirs 

(combined capacity, 1,700 acre-ft), Whittier Narrows flood-control reservoir (capacity,

36,160 acre-ft), and Sierra Madre, Las Flores, and Rubio debris basins. Many diversions above station for domestic use and irrigation. At times flow is diverted from 

San Gabriel River below Santa Fe Dam and above Whittier Narrows Dam to Rio Hondo.

Cooperation. Records furnished by Los Angeles County 

by Geological Survey.

Flood Control District and reviewed

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

28

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

3.9

.4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4.3

0.14

8.5

Nov.

0

0

0

Dec.

 50

0

0

JJL

2.7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

18.7

0.60

37

Jan.

5-0

0

1.1

49

.3

.8

.3

0

35

.3

176

967

5

0

0

0

0

0

24

0

0

1.1

4.3

2.3

43-

2.1

0

5.4

1.2

0

1,313.2

42.4

2,600

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

611

4.5

.9

0

0

68

-

684.4

24.4

1,360

Calendar year 1956: Max 4,910 Mln 0

Mar.

60

.4

0

0

0

0

0

0

12

.6

0

0

0

0

0

~096

0

0

0

0

0

0

0

0

0

0

0

0

0

0

169.0

5.45

335

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

8.5

~5~ 49

41

1.8

0

0

0

0

0

0

.8

0

.0

101.1

3.37

201

May

 50

0

0

0

0

0

0

0

0

~028

0

0

0

0

0

0

11

0

1.8

0

0

0

0

0

0

0

0

0

0

40.8

1.32

81

June

0

0

0

0

0

0

0

0

0

8.6

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

8.8

0.29

17

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Mean 18.2 Ac-ft 13,240

Water year 1956-57: Max 967 Mln 0 Mean 6.41 Ac-ft 4,640
LOS ANGELES RIVER BASIN 131

Los Angeles River at Long Beach, Calif.

Location^--Lat 33°49'05", long 118°12'15", in Los Cerritos Grant, on right bank 5,000 ft 

upstream from Willow Street, 3.4 miles north of Long Beach, Los Angeles County, and 

3.7 miles upstream from mouth.

Records available. December 1928 to September 1957.

Gage. Water-stage recorder. Datum of gage is 11.91 ft above mean sea level (levels by 

Los Angeles County Flood Control District). Prior to Oct. 31, 1931, at site 3 miles 

downstream at different datum. Oct. 31, 1931, to Jan. 19, 1956, at site 2 miles downstream at different datum.

Average discharge. 28 years (1929-57), 139 ofs (100,600 acre-ft per year); median of 

yearly mean discharges, 92 cfs (66,600 acre-ft per year).

Extremes . Maximum discharge during year, 23,000 cfs Feb. 23 (gage height, 7.45 ft); minimum daily, 5.5 ofs Oct. 7, Sept. 22.

1928-57: Maximum discharge, 99,000 cfs Mar. 2, 1938; no flow at times in 1929-30, 

1934.

Remarks. Plow regulated by several flood-control reservoirs. City of Los Angeles stores 

imported Owens River water in San Fernando and Chatsworth reservoirs and at times discharges imported water into Los Angeles River above station. Many diversions above 

station for domestic use and irrigation.

Cooperation. Records furnished by the Los Angeles County Flood Control District and 

reviewed by the Geological Survey.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

11

13

16

17

70

9.1

5.5

5TS

7.0

9.1

11 

11

11

9.1

8.8

13

13

12

8.5

12

9.1

7.0

10

9.7

11

13

12

11

11

10

13

389.7

12.6

773

Nov.

14

11

10

8.2

7.9

8.2

8.2

9.1

9.4

11

9.4

8.8

11

12

11

11

11

8.8

8.5

10

10

10

8.2

11

8.5

8.8

13

14

13

15

310.0

10.3

615

Dec.

15

13

11

16

39

-58 225

28

16

13

15 

13

15

18

15

11

13

14

11

13

15

15

11

9.1

8.2

8.5

13

13

14

11

9.4

679.2

21.9

1,350

Jan.

8.2

11 7.S

14

1,250

101

39

49

25

309

44 

53

4.550

76

34

19

14

16

15

408

239

18

27

211

81

846

203

256

988

273

36

10,220.5

330

20,270

Feb.

26

19

18

16

14

14

15

13

11

7.9

8.5 

11

10

11

9.4

9.7

9.4

9.7

12

13

12

9.7

2,800

95

31

22

23

632

-

3,882.3

139

7,700

Calendar year 1956: Max 21,700 Min 5.5

Mar.

806

71

27

20

22

20

17

24

166

282

15

12

11

12

11

1.530

154

23

46

20

12

9.4

8.5

7.6

8.5

11

15

15

14

13

7.3

3,410.3

110

6,760

Me!

Apr. .

7.6

7.6

8.5

11

10

10

7.0

I 6.8

15

16 

14

15

13

14

16

19

994

121

554

654

107

24

21

20

12

13

9.7

9.1

14

2,755.3

N 91.8

5,470

m 123

May

14

13

15

15

13

12

15

15

14

15

240 

~20 456

20

26

24

22

20

261

28

94

20

15

15

12

14

9.4

12

14

13

9.1

1,485.5

47.9

2,950

June

9.1

8.5

9.1

11

11

13

13

12

8.8

31

23 

13

14

12

9.1

6.8

6.0

T5

10

11

10

11

8.8

7.9

11

15

12

12

12

8.2

347.8

11.6

690

July

7.3

9.7

13

11

7.6

11

9.4

8.2

13

14

15 

14

12

8.5

7.0

13

18

15

13

13

7.9

7.9

14

16

18

18

16

9.7

9.4

13 

15

377.6

12.2

749

Aug.

13

13

13

8.8

9.1

11

11

11

11

11

14w

15

15

15

14

14

13

20

18

16

17

16

9.4

8.8

13

15

15 

12

9.4

398.2

12.8

790

Sept.

7.9

7.9

8.2

13

13

13

9.7

7.9

8.2

11

15 

14

15

16

T.4

8.8

14

12

12

11

8.8

44T3

9.7

12

12

11

9.7

7.3

8

n

t £

317.4

10.6

630

Ac-ft 89,080

Water year 1956-57: Max 4,550 Min 5.5 Mean 67.3 Ae-ft 48,750

510529 O -59 - 10
132 BALLONA CREEK BASIN

Ballona Creek near Culver City, Calif.

Location. Lat 33°59'48", long 118°24'07", in La Ballona Grant, on downstream side of 

Sawtelle Boulevard Bridge, 1.7 miles south of Culver City, Los Angeles County, and 

4 miles upstream from mouth.

Drainage area. 88.6 sq mi, excludes that of Sepulveda Creek. Prior to January 1951, 

111 sq mi, change due to tributary channel realignment.

Records available. February 1928 to September 1957 (after December 1950, flow of SepulVeda Creek excluded).

Gage. Water-stage recorder. Datum of gage is 11.26 ft above mean sea level (levels by 

Los Angeles County Flood Control District). Prior to May 14, 1936, at site 1 mile 

downstream at different datum.

Average discharge. 22 years (1928-50), 35.2 cfs (25,480 acre-ft per year); 7 years 

(1950-57),39.2 cfs (28,380 acre-ft per year).

Extremes. Maximum discharge during year, 13,860 cfs Feb. 23 (gage height, 13.62 ft); 

minimum daily, 6.3 cfs May 26.

1928-57: Maximum discharge, 19,000 cfs Mar. 2, 1938 (gage height, 15.2 ft); no 

flow parts of some years.

Remarks. Occasional discharge of imported Owens River water from several storage reservoirs of the City of Los Angeles Department of Water and Power into the creek above 

station. Some small pumping diversions above station for irrigation.

Cooperation. Records furnished by the Los Angeles County Flood Control District and 

reviewed by the Geological Survey.

Revisions (water years). WSP 881: 1938.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

10

10 

12

ft

12

8.8

8.8

8.8

8.9

8.9

9.0

9.0

9.1 

9.1

9.2

9.2

9.2

8.4

876

8.8

9.0

9.2

9.2

9.2

9.2

8.4

8.4

8.4

9.2

8 4

332.4

10.7

659

Nov.

9.6

11 

8.4

7.5 

8.0

8.4

8.8

12

12

10

8.8

12

14

it

14

11

10

12

9.6

9.6

9.6

11

8.8

7.1

8.8

9.6

9.6

10

10

312.2

10.4

619

Dec.

12

9.2 

10

9.6 

188

15

10

8.4

8.4

8.8

9.6

9.2

9.2

10 

9.2

8.8

9.2

9.2

9.2

8.4

8.4

8.4

8.4

8.4

8.0

9.2

9.6

10

10

9.2

9.2

470.2

15.2

933

Jan.

8.0

sis

9.2 

190

9.2

23

16

9.2

40

9.2

680

1.190

12

12

10

8.4

8.0

189

11

12

39

83

40

419

120

44

447

12

10

3,690.2

119

7,320

Feb.

10

13 

12

12 

10

10

10

10

10

10

10

10

12

11 

12

19

17

17

13

10

10

9.1

1.790

16

14

14

394

-

2,504.1

89.4

4,970

Mar.

99

15 

14

14 

14

14

14

10

82

24

23

23

30

36 

37

-"14° 348

15

22

12

11

10

10

8 0 37?

8.8

8.8

9.2

11

9.2

9.2

964.4

31.1

1,910

Apr.

12

9.2 

9.2

9.2

10

9.6

9.6

11

11

10

11

12

10

11

12

10

202

354

8.8

462

17

9.6

10

10

8.8

9.2

11

8.4

8.8

8.8

1,295.2

43.2

2,570

May

10

8.4 

9.6

8.4 

8.4

8.8

9.6

9.6

12

10

16

10

9.2

21 

8.0

8.4

8.4

12

174

~ 8.0

24

8.0

8.8

8.8

7.1

6.3

S74

9.2

8.0

7.5

9.2

475.5

15.3

943

June

9.6

fcf

9.6 

9.2

8.8

8.8

8.8

8.8

18.

9.2

9.6

9.2

11 

8.8

8.0

9.6

11

11

10

12

9.2

8.8

9.6

10

11

10

10

8.8

8.0

293.1

9.77

581

July

10

11 

10

7.5

sTT

9.6

8.0

8.8

11

11

9.6

10

12

To

12

10

9.2

8.5

8.5

8.5

8.4

8.4

8.4

8.5

8.5

8-. 7

8.9

9.1

9.2

9.4

9.6

290.7

9.38

577

Aug.

9.8

9.7 

9.5

9.3 

9.1

8.9

8.8

8.9

9.0

9.1

9.2

9.2 

9.3

9.2

9.1

9.0

8.9

9.3

9.7

~9.8 10

9.6

9.4

9.1

9.2

9.2

9.3

9.2

9.1

286.4

9.24

568

Sept.

9.0

8.8 

8.6

8.8 

9.0

9.0

9.0

9.0

9.1

9.1

9.1

9.1

8.8

8.6 

8.4

8.1

175

8.9

9.2

9.8

10

11

12

12

13

14

T3

12

12

11

297.9

9.93

591

Calendar year 1956 : Max 6,510 Mln 5.6 Mean 43.5 Ac-ft 31,600

Water year 1956-57 : Max 1,790 Min 6.3 Mean 30.7 .Ac-ft 22,240
TOPANGA CREEK BASIN 133

Topanga Creek near Topanga Beach, Calif.

Location. Lat 34°03'50", long IWSS'IC", in Boca de Santa Monica Grant, on downstream 

side of right abutment of highway bridge, 1.7 miles north of Topanga Beach, Los 

Angeles County.

Drainage area. 17.9 sq ml.

Records available.--January 1930 to September 1938, October 1939 to September 1957.

Gage. Water-stage recorder. Datum of gage is 265.60 ft above mean sea level (levels by 

Los Angeles County Flood Control District). Prior to June 5, 1940, at different datum.

Average discharge. 26 years, 5.23 cfs (3,790 acre-ft per year); median of yearly mean 

discharges, 1.8 cfs (1,300 acre-ft per year).

Extremes. Maximum dischar'ge during year, 655 cfs Feb. 23 (gage height, 5.08 ft); minimum 

daily, 0.01 cfs for several days.

1930-38, 1939-57: Maximum discharge, 7,960 cfs Mar. 2, 1938; no flow at times.

Cooperation.--Records furnished by the Los Angeles County Flood Control District and 

reviewed by the Geological Survey.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.02 -35?

.02

~tt .04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.02

.02

.02

.04

.04

.04

.04

.04

.04

.04

.04

.04

1.12

0.036

2.2

Nov.

0.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.05

7S5

.04.

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.02

TT3?

.02

.02

.02

1.12

0.037

2.2

Dec.

~MO.O2

.04

.04

_.!.

.07

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.02

.02

.02

.02

.02

.02

.02

.02

.04

.05

1.16

0.037

2.3

Jan.

O.05 -^55

.05

.1

1.2

.2

.1

.1

.07

.07

.07

1.2

18

.2

.1

.1

.07

.07

.07

.2

.2

.1

.2

.4

.3

4.9

1.8

1.1

4.4

3.2

1.9

40.57

1.31

80

Feb.

1.3

.8

.7

.6

.5

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

TT

.1

.1

.1

69

^.0

2.7

1.7

1.1

9.7

-

96.1

3.43

191

Mar.

7.6

FT?

1.8

1.0

2.0

1.0

1.0

1.1

1.1

.9

.6

.6

.4

.4

.4

2.1

.6

.6

.8

.5

.4

.3

.2

7?

.2

.2

.2

.2

.2

.2

.2

29.7

0.96

59

Apr.

0.2

.2

.1

TT

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.6

1.6

.8

2.0

1.0

.4

.3

.2

.2

.2

.2

.2

.1

.1

10.6

0.35

21

May

0.07 -759

.07

.07

.07

.1

.1

.1

.1

.1

.1

.2

.2

.1

.07

.07

.07

.2

~7£ 1.3

.2

.1

.1

.1

.1

.1

.1

.1

.07

.07

.07

4,49

0.145

8.9

June

~^57 O.07

.07

.05

.05

.05

.05

.05

.05

.05

.04

.04

.04

.04

.02

.02

.01 TOT

.01

.02

.02

.04

.05

.05

.05

.05

.04

.04

.04

.04

1.23

0.041

2.4

July

0.05 ~754

.04

.05

.04

.04

.05

.04

.04

.04

.04

.04

.04

.04

.02

.02

.02

.02

.02

.02

.01

TT3?

.02

.02

.02

.02

.02

.02

.02

.02

.01

0.90

0.029

1.8

Aug.

~^5T 0.01

.01

.01

.01

.01

.01

.01

.01

.02

.02

.04

.04

.04

.04

.04

.04

.04

.05 "755"

.05

.04

.04

.04

.04

.02

.02

.02

.02

.02

.02

0.84

0.027

1.7

Sept.

~^52 O.O2

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.01

.01

.01

.01

.01

.01

0.54

0.018

1.1

Calendar year 1956: Max 337 Mln 0 Mean 1.41 Ac-ft 1,030

Water year 1956-57: Max 69 Mln 0.01 Mean 0.516 Ac-ft 374
134 MALIBU CREEK BASIN

Malibu Creek at Crater Camp, near Calabasas, Calif.

Location. Lat 34°04'30", long 118°42'05", in SWtr sec. 18, T. IS., R. 17 W., on right 

bank 0.2 mile downstream from Crater Camp and 6 miles southwest of Calabasas.

Drainage area. 103 sq mi.

Records available.--January 1931 to September 1957.

Gage. Water-stage recorder. Datum of gage is 430.51 ft above mean sea level (levels by 

Los Angeles County Flood Control District).

Average discharge. 26 years, 18 ,.6 cfs (13,460 acre-ft per year); median of yearly mean 

discharges, 6.3 ofs (4,600 acre-ft per year).

Extremes. Maximum discharge during year, 46 cfs Feb. 23 (gage height, 2.53 ft); no flow 

S©pt. 16~30 (

1931-57: Maximum discharge, 13,600'cfs Mar. 15, 1952 (gage height, 19.1 ft); no 

flow for periods in some years.

Remarks. Flow regulated by many small recreational reservoirs.

Cooperation. Records furnished by Los Angeles County Flood Control District and reviewed 

by Geological Survey.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

2B

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.1

0.10

6.1

Nov.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.0

0.10

6.0

Dec.

0.1

.1

.1

.1

.1

,1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.1

0.10

6.1

Jan.

-TT 0.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.3

~72. 1.5

.2

.1

.1

.1

.1

.1

.1

.1

.2

,2

.2

.6

.3

.3

1.0

.9

.9

8.7

0.28

17

Feb.

0.8

.8

.7

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

12"T.I

1.4

1.0

.9

4.0

-

32.7

1.17

65

Calendar year 1956: Max 1,260 Mln 0.1

Mar.

9.7

575

4.6

4.2

3.7

3.5

3.3

3.5

3.5

3.3

2.8

2.8

2.8

2.6

2.3

3.3

2.8

2.6

2.6

2.3

2.0

1.7

1.7

1.7

1.5

1.5

1.5

1.5

1.5

1.5

1.5

89.3

2.88

177

Apr.

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.7

2.3

2.0

1.7

2.4

T75

1.7

2.4

1.8

1.7

1.4

1.4

1:2

T70- 1.0

1.0

1.0

1.0

45.9

1.53

91

May

0.9

.9

.8

.9

.9

.8

.8

.8

.8

.8

.8

.7

.7

.6

.6

.6

.6

.7

1.0

TS

.6

.6

.6

.6

.6

.6

.5

T5

.5

.5

.5

21.4

0.69

42

June

0.5 ~75

.5

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.1

TT

.1

.1

.1

.2

.2

8.4

0.28

17

July

0.2

T

.2

.2

.2

.2

.2

.2

.1

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.9

0.13

7.7

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.1

0.10

6.1

Sept.

0.1 -TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

ff

0

0

0

0

0

0

0

0

0

0

0

0

0

1.5

0.05

3.0

Mean 6.42 Ac-ft 4,660

Water year 1956-57: Max 12 Mln 0 Mean 0.61 Ac-ft '444
SANTA CLARA RIVER BASIN 135

Santa Clara River at Los Angeles-Ventura County line, Calif.

Location.--Lat 34°23'59", long 118°42'14", in San Francisco Grant, on downstream end of 

old diversion weir On right bank, 0.8 mile west of Los Angeles-Ventura County line.

Drainage area.--651 sq mi.

Records available. October 1952 to September 1957.

Gage. Water-stage recorder. Datum of gage is 794.93 ft above mean sea level, datum of 

1929.

Average discharge. 5 years, 7.89 cfs (5,710 acre-ft per year).

Extremes.--Maximum discharge during year, 1,580 cfs Mar. 1 (gage height, 3.99 ft); minimum daily, 0.2 cfs Aug. 21-26, Sept. 5-7.

1952-57: Maximum discharge, that of Mar. 1, 1957; minimum daily, 0.2 cfs Sept. 12, 

1955, Aug. 21-26, Sept. 5-7, 1957.

Remarks. Records good below 50 cfs and fair above. Discharge measurements generally 

made twice a week. Flow at station affected by pumpage from wells along stream for 

irrigation above station.

Cooperation.--Gage-height record and 63 discharge measurements furnished by Ventura 

County Water Resources Division; 26 discharge measi; ' " - 

Angeles County Flood Control District.

measurements furnished by the Los

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12 

13 

14

15

16

17

18

19

20

21

22

L3

24

25

26 

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.4

'.5

.6

.6

.6

.6

.6

.6

.6

.6

.6 

.6 

.5

.5

.5

.6

.6

.6

.5

.4

.5

.6

.7

76

.6 

.6

.6

.6

.7 

.6

17.6

0.57

35

Nov.

&£'.e

.6

.6

.6

.6

.7

.7

.8

.7

.9

i!o

.8

.8

.8

.7

.7

.7

.8

.8

.7

.7

.8 

.8

.9

.9

.9

23.2

0.77

46

Dec.

1.0 

1.0

1.0

1 1

T7T

1.1

1.1

.9

.9

1.0

1.0

1.0 1.1 1.1

1.0

.9

.9

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9 

.9

.9

.9

1.0

1.1

30.5

0.98

60

Jan.

1.1

T7o~

i]i

4.8

1.8

1.7

1.7

1.7

1.7

1.7

9.0 

~4.2 124 

2.6

2.2

2.1

1.9

1.9

2.6

2.4

1.9

2.1

3.1

2.4

5.5 

3.5

3.3

4.2

3.7

3.1

205.0

6.61

407

Feb.

fi

3.1

3.1

3.1

3.3

3.5

3.7

3.7

3.7

4.2

3.9 

3.7 

4.2

4.4

4.6

4.9

5.4

5.4

5.4

5.4

5.7

43

11

8.1

8.1 

8.1

51

225.9

8.07

448

Mar.

275

17

16

16

15

14

13

15

13

13

13 

13 

13

12

17

14

14

14

13

13

13

13

13

13

13 

13

12

12

11 

11

689

22.2

1,370

Apr.

tt

10

9.8

9.4

10

9.4

9.8

9.4

9.1

9.1

7.8 

7.5

7.2

7.2

8.4

10

8.4

11

11

9.8

11

9.8

9.4

8.8 

8.1

T.8

7.8

7.5

274.9

9.16

545

May

B6.6

6.0

4.9

3.9

3.7

3.7

3.5

3.3

3.1

2.9 

2.9

2.9

2.9

2.9

3.3

4.4

2.9

2.7

2.7

2.6

2.4

2.2

ITT

2.1

2.1

2.1 

2.1

105.6

3.41

209

June

1.9 

1.8

1.7

1.7

1.5

1.5

1.5

1.7

1.8

1.9

1.9

H2.1

1.8

1.2

1.2

1.2

1.2

1.1

1.1

T7§

1.1

1.2 

1.2

1.2

1.2

1.1

45.2

1.51

90

July

0^

'.6

.6

.6

.7

.6

.5

.4

.5

.4

.4 

.4

.4

.4

.5

.6

.5

.5

.5

.5

.6

.6

.6

.5 

.4

.4

.4

.3 

73

15.8

0.51

31

Aug.

0.3 

.3

.4

.5

7?

.4

.4

.4

.4

.4

.4

.3 

.3

.3

.3

.4

.4

.4

.3

.2

.2

.2

.2

.2

.2

.3

.3

.4

.4 

.4

10.4

0.34

21

Sept.

0.3 

.3

.3

.3

.2

72" .2

.3

.3

.3

.4

.4 

.5

.5

.5

.5

.4

.4

.4

.5

.6

74

.4

.4

.4 

.3

.3

.3

.3

11.0

0.37

22

Calendar year 1956: Max 514 Mln 0.3 Mean 7.48 Ac-ft 5,430

Water year 1956-57: Max 275 Mln 0.2 Mean 4.53 Ao-ft 3,280
136 SANTA CLARA RIVER BASIN

Piru Creek above Lake Piru, Calif.

Location. Lat 34°31'40", long 118°45 I 21", on right bank at Blue Point, 1.0 mile downstream from Aqua Blanca Creek, 4.6 miles upstream from Santa Felicia Dam, and 8.0 miles 

northeast of Piru, Ventura County.

Drainage area. 371 sq mi.

Records available. October 1955 to September 1957.

Gage. Water-stage recorder. Datum of gage is 1,063.62 ft above mean sea level (levels 

by Ventura County Water Resources Division).

Extremes. Maximum discharge during year, 3,600 cfs Jan. 13 (gage height, 7.70 ft); no 

flow Oct. 1 to Nov. 3, July 12 to Sept. 30.

1955-57: Maximum discharge, that of Jan. 13, 1957; no flow for several months each 

year.

Remarks. Records good. Discharge measurements generally made once a week.

Cooperation. Thirty-seven discharge measurements were furnished by the Ventura County 

Water Resources Division.

Rating tables, water year 1956-57 (gage height. In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Jan. 12, 13)

Oct. 1 to Jan. 13 Jan. 13 to Sept. 30

.1

.3

1.4

4.2

2.0 

2.3 

2.5

3.0

3.1

46

123

141

1.44

1.6

1.7

1.8

1.9 

2.1 

2.4

1.0 

3.0 

6.S

18

46

2.7 

3.0 

3.5 

4.0 

4.5 

5.0 

5.2

146

274

440

670

960

1,080

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

El

22

23

24

25

2627'

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

O

O

O

.2

.4

.5

.5

.5

.5

.5

.7

.8

.9

.9

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.4

1.6

176

1.6

26.8

0.89

53

Dec.

1.9

T79

2.1

2.1

2.4

2.7

2.4

2.1

2.1

2.4

2.4

2.4

2.7

2.7

3.0

3.0

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.6

3.6

3.9

3.9

3.9

90.2

2.91

179

Jan.

3^9

3.9

4.2

4.6

13

11

8.0

7.2

6.6

6.2

6.2

132

1.070

129

53

34

25

23

22

21

20

18

15

16

15

18

17

18

18

18

17

1,773.8

57.2

3,520

Feb.

18

19

18

18

17

16

16

18

19

30

32

34

30

26

24

22

20

19

19

18

18

17

299

170

77

54

44

85

-

1,197

42.8

2,370

Mar.

108

82

64

53

47

42

38

34

32

31

30

29

26

25

24

32

27

25

24

24

22

21

20

20

19

18

17

16

16

15

ii

995

32.1

1,970

Apr.

14

14

13

13

13

12

11

11

11

11

11

11

10

10

10

10

15

30

27

23

22

20

17

16

14

13

11

11

10

9.8

423.8

14.1

841

May

9.3

9.3

8.8

8.3

8.3

7.8

7.8

8.3

8.3

8.8

11

14

Ti- 15

ll

10

8.8

8.8

14

11

14

13

11

9.8

8.3

6.4

5.9

579

6.8

6*6

6*6

297.3

9.59

590

June

5.6

379

2.4

2.0

1.8

1.6

1.4

1.6

2.0

3.3

3.0

2.4

2.0

1.6

1.2

.8

.6

.6

.5

.4

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

41.4

1.38

82

July

0.2

.2

,2

.2

.2

.2

.1

.1

.1

.1

.1

0

0

O

0

0

0

0

0

0

0

O

0

O

o

0

0

0

0

0

0

1.7

0.05

3.4

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1-956 : Max 704 Mln 0 Mean 13.6 Ac-ft 9,860

Water year 1956-57: Max 1,070 Mln 0 Mean 13.3 Ac-ft 9,610

Peak discharge (base., 800 cfs). Jan. 13 (10 a.m.) 3,60O cfs (7.70 ft).
SANTA CLARA RIVER BASIN 137

Lake Piru near Piru, Calif.

Location. Lat 34°27'52", long 118 0 44'57", in Temescal Grant, at Santa Felicia Dam on 

Piru Creek, on left bank 1,000 ft upstream from left end of dam, 0.5 mile downstream 

from Santa Felicia Canyon, and 4.2 miles northeast of Piru, Ventura County.

Drainage area. 424 sq mi.

Records available . May 1955 to September 1957.

Gage.--Staff gage read once daily. Datum of gage is at mean sea level (levels by United 

Water Conservation District). Prior to Jan. 27, 1956, reference point at intake tower 

at same datum.

Extremes. Maximum contents observed during year, 7,694 acre-ft Apr. 27 to May 4 (elevation, 934.55 ft); minimum, 372.5 acre-ft Dec. 11 (elevation, 889.00 ft).

1955-57: Maximum contents observed, that of Apr. 27 to May 4, 1957; minimum, that 

of Dec. 11, 1956.

Remarks.--No inflow prior to October 1955. Reservoir is formed by earth-fill dam. Storage 

began May 20, 1955. Area and capacity ratings are based on surveys made in 1949 and 

1956. Dead storage below outlet gate (elevation, 890.0 ft), 426 acre-ft, included in 

contents. Capacity below spillway level (elevation, 1,055.0 ft), 101,225 acre-ft. 

Water is released from outlet to Piru Creek for ground-water recharge, domestic use 

and irrigation on the Oxnard plain.

Cooperation. Elevations furnished by United Water Conservation District.

Month-end elevation and total contents, water year October 1956 to September 1957

Date

Oct. 31.. ........................

Dec. 31. .........................

Calendar year 1956 .............

Feb. 28...... ....................

May 31.. ........................

Water year 1956-57 .............

Elevation 

(feet)t

907 . 70

901.65

890.85

-

926.80

934.30

-

Contents 

(acre-feet)

2,287

1,431

474

-

5,877

7,631

-

Change in contents 

(acre-feet)

_

-856

-301

+400

+3,119

+2,284

+337

-63

-1,293

t Elevation at 12 p.m.
138 SANTA CLARA RIVER BASIN

Piru Creek below Santa Felicia Dam, Calif.

Location.--Lat 34°27'37", long 118 0 45'04", on right bank 750 ft downstream from Santa 

Felicia Dam, 1 mile upstream from Lime Canyon, and 4 miles northeast of Piru, Venture 

County.

Drainage area. 424 sq mi.

Records available. October 1955 to September 1957.

Gage. Water-stage recorder and concrete control. Datum of gage is 858.8 ft above mean 

sea level (levels by United Water Conservation District). Auxiliary water-stage 

recorder at site If miles downstream.

Extremes. Maximum discharge during year, 86 cfs Dec. 7 (gage height, 2.37 ft); no flow 

for many days.

1955-57: Maximum discharge, 114 cfs May 15, 1956 (gage height, 2.52 ft); no flow 

at times each year.

Remarks. Records good. Discharge measurements or observations of no flow generally 

made twice a month. Flow regulated by Piru Reservoir since May 20, 1955 (see preceding page).

Rating table, water year 1956-57 (gage height, In feet, 

and discharge. In cubic feet per second)

1.0

1.1

1.2

1.3

.7 

1.6

1.4

1.5

1.6

3.3

5.8 

9.4

1.7 

1.9 

2.3

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

£5

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

17

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

17

17

17

17

16

Te

16

16

16

543

17.5

1,080

Nov.

16

16

16

16

16

16

16

16

16

16

16

re

16

16

16

16

16

16

16

16

16

16

16

16

16

15

11

4.0

14

21

468.0

15.6

928

Dec.

29

28

26

24

25

30

61

56

11

35

22

9.7

8.3

0

0

0

0

.2

.4

.3

0

0

0

0

0

0

.6

1.0

1.0

1.0

1.0

370.5

12.0

735

Calendar year 1956: Max 61

Jan.

1.0

1.0

1.0

1.9

2.2

1.9

1.9

1.9

1.6

2.4

2.4

3.6

372

1.4

0

0

0

0

0

0

0

0

0

0

.1

.1

0

0

0

0

27.6

0.89

55

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

0

.3 -

0.5

0.02

1.0

Mar.

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.006

0.4

Apr.

0

0

0

3.0

5.2

5.2

5.2

5.0

5.0

5.0

5.0

5.2

5.2

5.2

5.8

5.8

7.5

7 8

tts

7.8

7.5

7.5

7.5

7.2

A- 2

6.8

6.8

6.8

6.8

6.8

167.6

5.59

332

May

6.8

6.8

6.8

6.8

6.8

6.8

9.0

9.8

9.8

9.8

9.8

9.8

9.8

9.8

9.4

9.4

9.4

9.4

9.0

9.0

9.0

8.6

8.6

8.6

8.2

8.2

8.2

8.2

8.2

8.2

8.2

266.2

8.59

528

June

8.2

8.2

8.2

7.6

15

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

18

18

18

18

18

18

18

26

29

532.2

17.7

1,060

July

29

29

29

29

29

29

29

29

29

29

23

27

34

34

11

16

37

38

38

38

38

38

38

38

38

38

38

38

38

37

37

1,002

32.3

1,990

Aug.

42

46

46

46

46

46

46

46

46

46

46

49

49

47

46

46

46

46

47

47

47

46

a46

a46

a46

46

45

45

a45

a45

a45

1,427

46.0

2,830

Sept.

a45

a46

a46

a46

47

47

47

47

47

46

46

49

50

49

47

46

45

44

43

43

39

31

2.6

3.4

4.0

5.0

5.8

5.8

5.8

5 .8

1,034.2

34.5

2,050

Mln 0 Mean 14.9 Ac-ft 10,790

Water year 1956-57: Max 61 Mln 0 Mean 16.0 Ac-ft 11,590

a No gage-height record; discharge Interpolated.
SANTA CLARA RIVER BASIN 139

Hopper Creek near PIru, Calif.

Location. Lat 34°24'03", long 118°49'32", in NE^NEiSW£ sec. 25, T. 4 N. , R. 19 W. , on 

downstream side of center pier of highway bridge, 1 mile upstream from mouth and 

2.1 miles southwest of Piru.

Drainage area. 23.0 sq mi.

Records available. October 1930 to September 1932, October 1933 to September 1936, 

October 1937 to September 1957.

Sage. Water-stage recorder. Altitude of gage is 590 ft (from topographic map).

Average discharge. 25 years, 4.67 cfs (3,380 acre-ft per year); median of yearly mean 

discharges, 2.2 cfs (1,600 acre-ft per year).

Extremes.--Maximum discharge during year, 1,160 cfs Jan. 13 (gage height, 5.85 ft), from 

rating curve extended above 400 cfs on basis of slope-area determination of peak flow; 

no flow for several months.

1930-32, 1933-36, 1937-57: Maximum discharge, 8,000 cfs Mar. 2, 1938; no flow for 

several months In most years.

Remarks. Records good.

Cooperation. Water-stage-recorder graph, 36 discharge measurements, and one observation of 

no now furnished by Ventura County Water Resources Division.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

(*)

0

0

0

Dec.

(*)

(*)

0

0

0

Calendar year 1956: Max 397

Jan.

0

0

0

0

*6.9

1.6

*.9

.1

0

O

0

118

*208

*4.6

*.6

.2

.2

*.3

.3

1.7

 1.6

1.1

1.4

3.0

2.2

*11

3.9

2.1

2.1

1.5

1.4

374.7

12.1

743

Feb.

2.0

.8

.5

* .2

.0

.0

.0

.4

1.6

1.4

 1.1

1.1

 1.1

1.1

1.1

1.0

1.0

 1.1

1.0

1.0

1.0

1.1

*77

'F. 1

*1.0

.2

*28~0

-

137.9

4.92

274

Mln 0

Mar.

*15

i',2

*.6

.4

.5

*.6

.8

1.8

1.4

 1.0

 1.0

1.0

.8

.7

4.0

2.0

 1.4

1.4

1.1

1.1

1.0

.8

.7

*.8

.7

.7

.7

.6

.5

47.7

1.54

95

Apr.

*0.4

.4

.4

.3

.3

.4

.3

*.2~^%

.3

.3

.2

.2

.2

*.2

.2

*6.0

*14

52.4

2.1

2.1

2.1

*1.4

1.0

.7

.6

.5

.3

*.3

-.4

38.4

1.28

76

May

0.4

.4

.3

.2

.2

».2'.2

.4

.3

.2

.7

.5

*.4

.4

.2

.1

7s

*7.0

175

 1.0

.6

.6

.5

.4

.3

*.2

.2

.3

.2 

.1

18.9

0.61

37

June

0.1

IT *o

0

0

0

0

0

0

o

o

0

0

0

0

0

o

0

0

o

0

0

0

0

0

0

0

0

0

0

0.2

0.007

0.4

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Mean 1.95 Ac-ft 1,420

Water year 1956-57: Max 208 Mln O Mean 1.69 Ac-ft l,23o

Peak discharge (base,, 90 cfs). Jan. 13^2 a.m.) 1,160 cfs (5.85 ft); Feb. 23 (6 a.m.) 458 cfs 

(4.36 ft); Feb. 28 (5 p.m.) 129 cfs (5.52 ft).__________________________________

* Discharge measurement or observation of no flow made on this day.
140 SANTA CLARA RIVER BASIN

Sespe Creek near Wheeler Springs, Calif.

Location. --La t 34°34i40", long 119°15'25", in SW^SW? sec. 30, T. 6 N., R. 22 W., on right 

bank at Sespe Gorge, 1.6 miles upstream from Tule Creek, 5 miles upstream from Cold 

Springs dam site, and 5 miles northeast of Wheeler Springs.

Drainage area. --50 sq mi, approximately. 

Records available. July 1948 to September 1957.

Gage. --Water-stage recorder. Datum of gage is 3,500.65 ft above mean sea level (levels by 

ventura County) .

Average discharge. 9 years, 4.58 cfs (3,320 acre-ft per year).

Extremes. --Maximum discharge during year, 1,720 cfs Jan. 12 (gage height, 8.55 ft); no 

 flow Sept. 7-9, 12.

1948-57: Maximum discharge, 2,260 cfs Jan. 15, 1952 (gage height, 9.52 ft), from

rating curve extended above 500 cfs on basis of slope-area determination of peak flow;

no flow at times in 1951, 1955-57.

Remarks . Records good. Discharge measurements generally made once a week.

Cooperation. Twenty-five discharge measurements furnished by Ventura County Water 

Resources Division.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

2.5

2.6

2.9

3.0

3.1

.1 

.5 

1.0 

2.0 

3.6 

5.9

3.2

3.3 

3.5 

3.7 

4.0 

4.3 

4.8

12

25

43

80

128

230

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.-

~T0.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

;1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.3

7J

4.4

0.14

8.7

Nov.

~73- 0.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.6

.6

.6

.7

.7

.8

475

.8

.7

.8

15.4

0.51

31

Dec.

0.8

Tff

.8

.8

^9

.8

.9

.9

.9

.8

.8

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

. 8

25.4

0.82

50

Calendar year 1956; Max 302

Jan.

T5" 0.8

.8

.8

1.4

1.2

1.4

1.2

1.2

1.2

1.1

212

250

9.5

5.4

3.8

3.0

2.5

2.2

2.7

2.5

2.2

2.2

2.5

2.2

2.8

2.4

2.1

2.2

2.0

2.2

478.3

15.4

949

Feb.

2.4

2.4

2.2

2.1

2.0

2.0

2.0

3.0

2.8

2.5

2.4

2.4

2.2

2.1

2.0

2.0

2.0

1.8

TTe

1.6

1.8

2.0

101

Tf

6.2

5.2

t. 4

25

-

201.5

7.20

4OO

Mln 0

Mar.

54 IB"

11

8.2

6.4

5.4

4.6

4.6

5.9

7.3

4.6

4.2

4.0

4.0

3.6

3.6

3.8

3.6

3.6

3.2

3.0

3.0

3.0

2.8

2.8

2.8

54-

775

2.7

2.7

2.7

192.6

6.21

382

Apr.

3.0

2.7

2.5

2.4

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.2

2.1

2.1

2.1

2.2

5.8

6.2

37o

3.0

3.0

2.7

2.4

2.2

2.2

2.2

2.1

2.1

2.0

1.8

78.2

2.61

155

May

1.8

1.7

1.7

1.7

1.7

1.7

1.7

2.0

2.0

3.0

4.2

3.4

2.5

2.4

2.4

1.8

1.8

2.5

5.4 275"

2.5

2.2

2.2

2.1

2.0

1.6

1.6

1.6

1.6

1.5

1.4

68.2

2.20

135

June

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.2

1.5

1.2

1.2

1.1

1.0

1.0

1.0

.8

.8

.8

.8

.8

.7

.7

.7

i§_

.6

.6

.6

.6

.6

28.5

O.95

57

July

0.6 ~75~

.5

t4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

_._!

.1

.1

.1

.1

.1

.1

8.2

0.26

16

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.1

0.10

6.1

Sept.

~TT 0.1

.1

.1

.1

.1

0

0

0

.1

.1

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

2.6

0.09

5.2

Mean 3.29 Ac-ft 2,390

Water year 1956-57: Max 212 Mln 0 Mean 3.03 Ac-ft 2.2OO

Peak discharge (base, 50 cfs). Jan. 12 (11 p.m.) 1,720 cfs (8.55 ft)j Feb. 23 (4:30 a.m.) 336 cfs 

(5.23 ft); Mar. 1 (2 to 3 a.m.) 121 cfs (4.26 ft).
SANTA CLARA RIVER BASIN 141

Sespe Creek near Fillmore, Calif.

Location. Lat 34 t> 27'03", long 118°55'30", in NE^NW^NE^ sec. 12, T. 4 N. , R. 20 W. , on 

right bank 0.1 mile downstream from Little Sespe Creek and 3.5 miles north of Fillmore.

Drainage area. 254 sq mi.

Records available.--September 1911 to September 1913, October 1927 to September 1957. 

Prior to November 1934, published as "at Sespe."

Gage.--Water-stage recorder. Altitude of gage is 580 ft (from topographic map). Prior 

to Sept. 30, 1913, staff gage and Oct. 1, 1927, to Nov. 4, 1934, water-stage recorder, 

at site 3 miles downstream at different datum. Nov. 5, 1934, to Mar. 2, 1938, waterstage recorder at same site at different datum (destroyed by flood; reestablished at 

present datum Feb. 2, 1939).

Average discharge. 30 years (1927-57), 89.7 cfs (64,940 acre-ft per year); median of 

yearly mean discharges, 49 cfs (35,500 acre-ft per year). Average combined discharge, 

creek and canal, 30 years (1927-57), 95.4 cfs (69,070 acre-ft per year); median of 

combined yearly mean discharges, 54 cfs (39,100 acre-ft per year).

Extremes.--Maximum discharge during year, 7,650 cfs Jan. 13 (gage height, 12.80 ft), from 

rating curve extended above 3,000 cfs on basis of slope-area determination of peak flow; 

no flow Nov. 16 to Dec. 2, Sept. 6-9, 23-25.

1927-57: Maximum discharge, 56,000 cfs Mar. 2, 1938, on basis of slope-area determination of peak flow; no flow at times most years.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements generally made twice a month. Fillmore Irrigation Co. diverts 

water 1 mile above station. For records of combined discharge of Sespe Creek and 

canal, see following page.

Cooperation.--Eight discharge measurements furnished by Ventura County Water Resources 

Division.

Revisions (water years).--WSP 901: 1938-39.

Rating tables, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second)

(Shifting-control mpthod used Dec. 18, Jan. 13-17, 

Mar. 10-21, Aug. 30, 31, Sept. 27)

Oct. 1 to Jan. 12 Jan. 13 to Sept. 30

5.8

5.9

6.0

6.1 

6.3

1.2

4.4

9.3

16

32

7.0 

7.5 

8.0 

9.0

68

140

275

470

1,050

5.7

5.8

5.9

6.0 

6.2

2.3

6.5

6.5

7.0 

7.5 

8.0 

9.0 

11.0

94

254

495

820

1,700

4,350

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tcta2

Mean

Ac-rt

Oct.

0.4

.1

TT.1.1

a

a

.2

.2

.1

3.0

1.9

.5

.8

13

.1

.1

.1

.1

.1

.1

2.3

1.7

.7

.7

1.7

2.2

2.6

2.6

2.6

2.2

27.9

0.90

55

Nov.

2.2

1.0

.1

.1

1.9

2.6

2^

1.2

2.0

2.2

2.2

1.2

.7

2.4

1.3

0

0

0

0

0

0

0

0

O

0

0

0

0

0

0

23.1

0.77

46

Dec.

0

0

i!1.

1 .

3. .

1.

? _

3. ,

.3

.3

.3

.2

.2

.2

15.9

0.51

32

Jan.

0.2

.2

.2

.3

19

10

7.1

7.1

4.0

3.2

3.6

515

2.940

a250

82

53

49

46

34

35

35

28

27

35

32

84

53

41

40

34

31

4,498.9

145

8,920

Feb.

27

25

22

20

18

17

16

a!5

al4

a!3

a!2

all

a50

a30

27

26

25

24

22

20

18

18

1,030

326

162

143

137

267

-

2,535

90.5

5,030

Mar.

373

195

123

1O2

86

73

69

65

63

61

59

55

51

47

44

51

46

44

46

41

35

a34

a33

a32

a31

a30

a29

a28

28

27

25

2,026

65.4

4,020

Apr.

24

22

22

22

20

20

18

18

16

15

14

13

13

13

12

12

65

118

73

61

55

47

44

42

36

32

31

27

25

24

954

31.8

1,890

May

22

22

22

20

20

20

18

18

17

17

20

28

30

28

24

18

15

15

36

54

30

24

20

18

15

14

11

8.9

8.9

I'.l

629.8

20.3

1,250

June

6.5

6.6

4.4

2.6

2.6

2.6

2.0

.8

1.0

1.4

2.0

2.0

2.0

1.7

1.4

.8

.8

.7

.6

.6

.6

.6

.6

.6

_.5_

.5

.5

.5

.5

.5

48.5

1.62

96

July

0.4

.4

.3

.2

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

jjl

7.0

0.23

14

Aug.

2.2

2.9

1.2

.3

.3

.3

.3

.3

.2

.2

.2

.2

Tl

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

1.6

.9

12.8

0.41

25

Sept.

0.1

.1

.1

.1

.1

0

0

0

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

.1

H O

.1.1

3.8

0.13

7.5

Calendar year 1956: Max 2,910 Min O Mean 34.0 Ac-ft 24,660

Water year 1956-57: Max 2,940 Min 0 Mean 29.5 Ac-ft 21,390

Peak discharge (base, 1,300 cfs).--Jan. 13 (4 a.m.) 7,650 cfs (12.80 ft); Feb. 23 (6 a.m.)

2,970 efs UQ-OS ft)._______________________

a No gage-height record; discharge estimated on basis of 3 discharge measurements and records for 

nearby stations.
142 SANTA CLARA RIVER BASIN

Sespe Creek near Pillmore, Calif. Continued

Combined discharge, in cubic feet per second, of Sespe Creek and Pillraore Irrigation Co. 

canal near Pillmore, Calif., water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

3.1

374

3.5

3.8

4.0

4.0

4.0

3.9

3.8

3.6

6.8

4.0

3.9

3.8

3.7

3.6

3.7

3.7

3,7

3,6

3.4

3.4

3.6

3.7

3,6

3,6

3.6

4.2

4,1

4.3

4.2

119.3

3.85

237

Nov.

4.0 

3.9

2.9

2.9

3.8

3.8

3.7

3.7

3.6

3.1

3.4

3.7

3.9

4.0

3.8

3.8

3.8

3,9

3.7

3.7

3.7

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3,8

111.0

3,70

220

Dec.

Iff

3.9

4.0

4.3

4.3

4 .4

472

4.0

3,8

4.0

4,2

4.2

4.2

4.2

4.1

4.1

4,1

4.2

4.2

4.3

4.2

4,2

4,2

4,2

4.0

3,9

4.0

4.1

4.2

4,2

127.5

4.11

253

Jan.

4.2 

4.2

4.2

4.1

21

10

7.6

7.7

5.6

5.3

5.8

517

2.940

250

82

53

48

47

35

36

36

29

28

36

33

85

54

42

41

35

32

4,539.7

146

9,000

Feb.

28 

26

23

21

19

18

17

16

15

14

13

12

51

31

28

27

26

25

23

21

19

19

1.050

326

162

143

138

268

-

2,559

91.4

5,080

Calendar- year 1956i Max 2,910 Mln 2.9

Mar.

374 

196

124

103

88

74

70

66

64

62

60

56

53

48

46

53

48

46

48

43

37

36

34

34

33

31

30

30

30

29

27

2,073

66.9

4,110

Apr.

26 

24

24

24

22

22

20

21

21

21

21

21

20

21

20

20

70

118

73

61

55

47

44

42

38

35

34

30

28

26

1,049

35,0

2,080

May

24 

24

24

22

22

22

20

21

20

22

26

34

36

34

33

28

24

24

41

58

35

29

25

24

23

22

21

20

19

Tfl"

4.O

813

26.2

1,610

June

16 

15

15

13

12

12

12

12

13

14

14

13

12

11

11

9.8

9.0

8.2

7.6

7.3

7,2

7.0

6,7

6.4

6.1

5.9

5.6

5.5

1^4

5,4

298.1

9.94

591

July

5.0 

T77

4.5

4.1

4.1

4.1

4.1

3.8

3.8

3.9

3.9

3.7

3.6

3.6

3,6

3.6

3,6

3.7

3.6

3.7

3.7

3,7

3.7

3.7

3.6

3.6

3,6

3.6

3,4

3.3

3^0

117.6

3.79

233

Aug.

3.0 

3.1

2,9

2,9

2.9

3.0

3.2

3.3

3.3

3.3

3,3

3.1

3.0

2.9

2.7

2.7

2,7

2.8

2.8

2.8

2,8

2.8

2.8

2.8

2.8

2.8

2.7

2.7

2,8

4.6

470

93.3

3.01

185

Sept.

3.2 

3.2

3.1

3.1

3.0

2.8

2.6

2.6

2.7

3.0

3.0

3.0

3.1

3.3

3.4

3.4

3.4

3.4

3,5

3,5

3.5

3.0

2.8

2,7

2.8

2,9

3^,9

3,5

3.0

2,9

93.3

3.11

185

Mean 37.9 Ac-ft 27,520

Water year 1956-57: Max 2,940 Mln 2,6 Mean 32.9 Ac-ft 23,780
SANTA CLARA RIVER BASIN 143

Santa Paula Creek near Santa Paula, Calif.

Location. Lat 34°23'44", long 119°04'32", in NW£swiSw£ sec. 27, T. 4 N., R. 21 W., on 

right bank 15 ft upstream from Santa Paula Water Works diversion dam, 150 ft upstream 

from Mud Creek, and 3 miles north of Santa Paula.

Drainage area. 39.8 sq mi.

Records available. October 1927 to September 1957. March 1912 to September 1913 at site 

2.5 miles upstream; records not equivalent.

Gage.--Water-stage recorder. Altitude of gage is 650 ft (from topographic map). Oct. 1, 

T!927, to Feb. 19, 1931, at site 500 ft downstream at different datum.

Average discharge. 30 years, 17.9 cfs (12,960 acre-ft per year); median of yearly mean 

discharges, 9.4 cfs (6,810 acre-ft per year).

Extremes.--Maximum discharge during year, 825 cfs Jan. 13 (gage height, 3.92 ft); minimum 

 daily, 0.1 cfs Aug. 14, 16-24, 27-29, Sept. 6-8, 10-14.

1927-57: Maximum discharge, 13,500 cfs Mar. 2, 1938 (gage height, 10.56 ft), from

rating curve extended above 2,100 cfs on basis of slope-area determination of peak

flow; no flow at times in 1949, 1951-52.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements generally made twice a month. Santa Paula Water Works diverted 

125 acre-ft above station for irrigation.

Cooperation. Seven discharge measurements furnished by the Ventura County Water Resources 

Division.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.6

1.8

1.6

1.9

1.9

l*Z 27?

.9ff

.7

.8

.6

.8

.6

.7

1.0

1.0

1.0

.6

1.4

1.3

1.5

1.6

1.8

1.5

1.6

1.9

1.8 1 9

1.8

40.8

1.32

81

Nov.

1.8

3T8

1.8

1.8

1.6

1.4

1.2

1.0

1.0

1.0

1.1

1.2

1.5

1.6

1.6

1.5

1.4

1.5

1.5

1.4

1.4

1.3

1.5

1.3

1.3

1.3

1.0

.6

7TT

 6

39.6

1.32

79

Dec.

0.8

or 1.1

1.4

2.5

2.9 2Tg"

2.4

2.2

2.1

2.1

2.1

1.9

2.4

2.4

2.3

1.4

.9

.9

1.1

1.8

2.2

2.2

2.2

2.1

1.8

1.6

1.4

1.5

1*8

 2.1

57.2

1.85

113

Calendar year 1956: Max 495

Jan.

2.2

Lii

2.1

2.4

5.6

3.1

2.7

2.6

2.4

2.4

2.4

28

192 "IF

8.2

7.5

7.1

6.5

6.2

6.2

5.8

5.3

5.3

5.3

6.5

9.0

5.8

5.6

5.6

5.6

5.6

372.1

12.0

738

Feb.

5.3

5.0

^0

5.0

5.0

5.0

5.0

5.6

6.2

7.5

7.5

6.8

6.2

6.2

6.2

5.8

6.5

6.8

5.8

5.8

5.8

5.6

58

FT

19

15

12

33

-

293.6

10.5

582

Mln 0.3

Mar.

35

24

19

17

15

13

12

12

12

10

9.6

9.3

8.9

8.5

8.5

9.6

8.5

7.5

7.5

6.8

7.1

7.5

6.8

6.8

6.8

6.8

6.8

6.2

6.2

5.6

5.1

325.6

10.5

646

Apr.

5.3

5.3

M57^

5.3

5.6

5.3

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.3

13

22

IT

14

12

12

12

11

10

9.3

8.5

7.8

7.8

7.1

242.6

8.09

481

May

7.1

6.8

6.2

6.2

6.2

6.2

6.2

6.5

6.2

6.2

7.5

6.8

6.5

6.5

5.8

5.8

era* 5.6

15

12

11

10

9.3

8.9

8.5

.8

.1

.5

.8

.1

7.1

234.2

7.55

465

June

6.5

5^

5.3

5.0

5.0

5.0

5.3

5.6

5.0

5.0

4.7

4.4

4.0

3.5

2.9

2.6

2.1

2.1

1.6

1.6

1.6

1.9

1.9

1.9

1.9

1.9

1.9

1.9

2.2

2.1

102.2

3.41

203

July

1.8

1.4

1.2

.8

.7

.8

.8

.7

.7

.8

.7

.7

.7

.7

.7

1.1

2.1

2.4

2.2

2.6

2.5

2.5

2.5

2

2

2

1.5

1.5

1.5

1

1

43.6

1.41

86

Aug.

1.0

.4

.4

.4

.2

.3

.4

.4

.9

1.3

1.5^g~

.4

73" .1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.2

.2

10.6

0.34

21

Sept.

0.2

.2

.2

.2

.2

.1

7T

.1

.2

.1

.1

.1

.1

.1

.4

1.2

1.3

1.0

1.1

1.4

1.0

.8

.8

.7

.8

.9

.9

.9

.9

g

17.0

0.57

34

Mean 7.11 Ac-ft 5,170

Water year 1956-57: Max 192 Mln o.l Mean 4.87 Ac-ft 3,530

Peak discharge (base, 200 cfs). Jan. 13 (1 a.m.) 825 cfs (3.92 ft).

Note. --No gage-height record July 21-31; discharge Interp61ated.
144 VENTDRA RIVER BASIN

Matlllja Creek above reservoir, near Matllija Hot Springs, Calif.

Location Lat 34°29'4l", long 119°19'48", In SWiSE&3W£ sec. 19, T. 5 N., R. 23 W. , on 

left bank 1.6 miles upstream from Matlllja Dam and 1.7 miles northwest of Matlllja 

Hot Springs .

Drainage area. 51 sq ml, approximately.

Records available . May 1948 to September 1957. Published as "near Matlllja" prior to 

October 1953.

Gage. Water-stage recorder. Datum of gage Is 1 ,160.20 ft above mean sea level (levels

oy Ventura County Water Resources Division) .

Average discharge. 9 years, 12.5 cfs (9,050 acre-ft per year).

Extremes . Maximum discharge during year, 1,820 cfs Jan. 13 (gage height, 7.13 ft); minImum dally, 0.7 cfs Sept. 6-8, 24-30.

1948-57: Maximum discharge, 8,800 cfs Jan. 15, 1952 (gage height, 12.1 ft), from 

rating curve extended above 600 cfs on basis of slope-area determination of peak flow; 

minimum dally, 0.3 cfs Oct. 17-20, 25, 27, 1951.

Remarks . Records good. Discharge measurements generally made once a week.

Cooperation. Sixty-three discharge measurements furnished by Ventura County Water 

Resources Division.

Rating table, water year 1956-57 (gage height, In feet,

and discharge. In cubic feet per second)

(Shifting-control method used Nov. 20-30, Jan. 5-8,

Feb. 23, Apr. 18, Sept. 4-30)

2.6

2.7

2.8

2.9

0.4

1.7 

3.0

3.0

3.1

3.2

3.3

5.0 

7.6

15

3.6

4.0 

4.5 

5.1

35

165

350

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

2

3

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.4

1.5

1.7

1.7

1.7

1.7

1.7

1.7

1.8

1.7

1.7

1.5

1.4

1.4

1.3

1.3

1.4

1.3

1.2

1.3

1.5

1.5

1.5

1.5

1.6

1.6

1.6

1.7

1.7

47.7

1.54

95

Nov.

1.6

1.5

1.5

1.3

1.3

1*2

1.2

1.3

1.4

1.4

1.6

1.7

1.7

1.8

1.7

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.6

1.6

1.6

1.6

1.7

1.7

46.1

1.54

91

Dec.

fct

1.8

2.2

2.2

2.0

2.0

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.9

1.9

2.0

2.0

2.0

2.0

60.5

1.95

120

Calendar year 1956: Max 637

Jan.

2.3 

2.3

2.3

2.4 

3.9

2.6

2.6

2.6

2.6

2.4

2.4

105

327

27

16

12

12

10

9.7

10

9.4

8.5

8.5

8.8

8.5

9.7

9.4

8.8

8.5

8.2

7.9

653.3

21.1

1,300

Feb.

7.9 

7.9

7.6

7.6 

7.6

7.6

7.6

9.1

9.4

8. "8

8.5

7.9

7.9

7.6

7.3

7.3

7.3

7.3

7.3

7.3

7.0

7.0

~29 106

23

20-

18

41

-

407.8

14.6

809

Mln 1 . 2

Mar.

89 

44

34

29 

26

23

22

21

22

20

19

17

17

15

14

13

13

13

13

12

12

12

11

11

10

9.7

9.4

9.4

9.4

9.1

6.6

587.8

19.0

1,170

Apr.

8,8 

8.2

7.9

.9 

.9

.9

.6

.3

7.3

7.0

6.7

6.7

6.7

6.7

6.7

6.7

22

TT

10

10

10

9.7

9.1

8.8

7.9

7.6

7.3

6.7

6.4

6.4

256.9

8.56

510

Mean 10.5

May

6.7 

7.0

7.0

6.7 

7.0

6.7

7.0

7.6

7.3

7.3

7.9

7.6

7.3

7.0

6.7

6.7

6.4

6.7

8_.2

6.7

6.4

6.1

6.1

6.1

5.6

5.0

570

5.2

5.4

5.4

5.0

202.8

6.54

402

June

4.4 

4.0

3.8

3 . 8 

3.8

3.8

4.2

4.4

1*6

4.6

4.4

4.2

4.2

4.0

4.0

3.6

3.2

3.0

2.9

2.7

2.7

2.7

2.4

2.3

2.3

2.2

272

2.4

2.6

2.6

102.0

3.40

202

July

2.4 

2.0

1.9

1.8

1.9

1.8

1.8

1.7

1.7

1.7

1.6

1.6

1.6

1.4

1.4

1.4

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.2

1.2

1.2

48.9

1.58

97

Aug.

iti

1.2

1.2 

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.8

78

.9

.8

.8

.8

.8

1.0

1.0

31.6

1.02

63

Ac-ft 7,620

Sept.

1.0 

.9

.9

. 8 

.8

.7

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

.8

.S

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

23.4

0.78

46

water year 1956-57: Max 327 Mln 0.7 Mean 6.76 Ac-ft 4,900

Peak discharge (base, 100 cfs). Jan. 13 (l a.m.) 1,820 cfs (7.13 ft); Feb. 23 (6:30 a.m.) 322 cfs

(5.05 ft); Mar. 1 (1:30 a.m.) 157 cfs (4.50 ft).
VENTURA RIVER BASIN 145

Matillja Reservoir at Matilija Hot Springs, Calif.

Location. Lat 34°29'02", long 119 0 18'28", in SW£NW£SE£ sec. 29, T. 5 N. , R. 23 W. , on 

upstream face near right end of Matlllja Dam on Matlllja Creek, 0.2 mile west of 

Matilija Hot Springs.

Drainage area. 54.6 sq ml.

Records available. March 1948 to September 1957. Prior to October 1953, published as 

"at Matilija."

gage. Water-stage recorder. Datum of gage Is at mean sea level (levels by Ventura 

county Water Resources Division). Prior to Oct. 1, 1954, at datum 1,000 ft higher.

Extremes. Maximum contents during year, 7,025 acre-ft Apr. 17 (elevation, 1,125.06 ft); 

minimum, 4,563 acre-ft (elevation, 1,102.76 ft) Jan. 4.

1948-57: Maximum contents, 7,360 acre.-ft Jan. 15, 1952 (elevation, 1,127.76 ft); 

minimum, 54 acre-ft (sluice gate open) July 27, 1951, to Jan. 11, 1952.

Remarks. Reservoir Is formed by concrete dam. Storage began Mar. 14, 1948. Capacity 

and area ratings for reservoir are based on surveys made In 1948. Dead storage below 

sluice gate (elevation, 1,000.0 ft), 54 acre-ft Included In contents. Capacity below 

outlet gate (elevation, 1,025.0 ft), 250 acre-ft; below spillway level (elevation, 

1,125.0 ft), 7,020 acre-ft. Water released from reservoir passes down natural channel 

of Matlllja Creek or Is diverted through pipeline to Ventura River basin and OJal 

Valley for Irrigation.

Cooperation. Gage-height record furnished by Ventura County Water Resources Division.

Month-end elevation and contents, water year October 1956 to September 1957

Date

Dec. 31.... ................

Mar. 31.................. ..

Apr. 30....................

July 31 ....................

Water year 1956-57 .......

Elevation 

(feet)t

1,102.83

-

-

Contents 

(acre-feet)

4,570

-

5,602

7,000

5,995

-

Change In contents 

(acre-feet)

_

-358

-208

+23

+1,032

+535

+2

-365

-602

-350

-291

t Elevation at 12 p.m.
146 VENTURA RIVER BASIN

Matilija Creek at Matilija Hot Springs, Calif.

Location. --Lat 34°28'58", long 119°18'03", in SW^NW^SWi sec. 28, T. 5 N., R. 23 W., on

 right bank 0.2 mile east of Matilija Hot Springs, 0.2 mile upstream from North Fork, 

and 0.45 mile downstream from Matilija Dam.

Drainage area. --55 sq mi, approximately.

Records available . --.-October 1927 to September 1957. Prior to October 1953, published as 

» at Matilija.tt

Gage. --Water- stage recorder. Altitude of gage is 900 ft (from topographic map). Prior to

 Teb. 11, 1939, at site 0.6 mile upstream at different datum.

Extremes. --Maximum discharge during year, 97 cfs Apr. 17 (gage height, 3.29 ft); minimum

 daily, 0.9 cfs Feb. 3-7, 9-15, Mar. 5, 6.

1927-57: Maximum discharge, 15,900 cfs Mar. 2, 1938, on basis of slope-area determination of peak flow; minimum daily, 0.1 cfs for several days during most years of 

regulated flow.

Remarks. --Records good. Discharge measurements generally made twice a month. Flow regu-

 Tiled by Matilija Reservoir since Mar. 14, 1948 (see preceding page); water diverted 

at dam to Ventura River basin and Ojai Valley for irrigation since May 1951.

Cooperation. --Three discharge measurements and records of diversion were furnished by 

Ventura County Water Resources Division.

Revisions (water years ). WSP 931: 1939-40. WSP 1285: 1951-52.

Rating tabl ;, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

1.6

1.7

1.8

0.7 

1.1 

1.6

1.9 

2.1 

2.3

2.8

6.2

12

2.5 

2.8

20

40

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2 

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

3.0

370

3.0

3.0 

3.0

3.0

3.0

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.8

2.5

2.5

2.6

2.8

2.5

2.3

T7S

2.3

2.3

2.5

2 5

85.7

2.76

170

Nov.

2.5

2.5 

2.5

2.5 

2.3

2.3

2.3

2.3

2.2

573

2.3

2.3

2.5

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.5

2.6

2.8

75.1

2.50

149

Dec.

2.8

2.8 

2.9

2.9 

3.2

3.0

2.9

2.9

2.9

2.9

2.9

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.3

2.0

2.0

2.0

1.9

1.9

1.9

1.9

1.9

2.0

2.0

79.1

2.55

157

Jan.

2.0

2.0 

2.0

2.1 

2.5

2.1

2.1

2.1

2.1

2.1

2.1

3.6

*iO

T^

2.1

1.1

1.1

1.0

1.0

1.1

1.0

1.0

1.0

1.0

1.0

1.1

1.0

1.0

1.0

1.0

1.0

51.9

1.67

103

Feb.

1.0

1.0 

q

tl 

.9

.9

.9

1.0

.9

.9

.9

.9

.9

.9

.9

I'.O

1.0

1.0

1.0

1.0

1.0

1.0

2.0

l!l

1.0

1.0

1.7

_

28.7

1.02

57

Mar.

1.3

1.2 

1.2

1.1 

_._9

.9

1.0

5.8

19

IS

12

13

15

11

11

12

9.8

10

12

8.0

12

11

6.2

7.3

6.4

6.2

5.6

5.4 '6.2

6.4

4.1

241.0

7.77

478

Apr.

7.3

5.6 

LA

2.0 

2.6

3.5

3.9

3.4

2.9

3.0

5.2

5.6

5.2

5.4

5.6

5.6

3330-

8.0

8.4

7.0

6.0

5.8

5.4

5.4

4.0

3.7

3.4

2.8

2.6

193.7

6.46

384

May

2.6

2.3 

2.6

2.1 

2.0

Z76" 1.8

3.4

3.7

5.2

7.8

7.6

7.6

8.4

6.6

6.4

6.4

6.6

7.8

7.6

9.0

57?

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5 2

162.1

5.23

322

June

572" 5.2

4.8

47T

4.4

4.6

4.9

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.0

5.0

4.8

4.4

4.6

4.6

4.6

4.6

4.8

4.8

4.8

4.8

4.8

4.6

145.1

4.86

289

July

4.6

174

4.2

4.2

4.2

4.2

4.0

4.0

4.0

4.0

4.0

3.9

3.9

3.9

3.9

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

2.9

2.0

123.1

3.97

244

Aug.

2.0

2.0 

1.9

1.9 

1.9

1.9

1.9

1.9

1.9

1.8

1.8

1.8

1.8

1.7

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.*

375

5.4

574

5.4

66.0

2.13

131

Sept.

5.4

574 

3.1

1.5 

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.2

1.4

1.6

1.5

1.3

1.2

1.3

1.5

1.6

1.6

1.6

1.6

1.9

2.0

2.0

2.0

54.5

1.82

108

Adjusted for diversion to Ventura River basin and OJal Valley

Mean

Cfsm

Ac-ft

4.33

266

3.56

212

5.12

315

1.82

112

1.02

57

11.7

720

9.87

587

6.62

407

9.02

537

6.72

631

6.33

38.9

5.60

333

Calendar 

Water yes

Calendar 

Water yes

year 1956: 

ir 1956-57:

year 1956: 

ir 1956-57:

Max 

Max

Mean 

Mean

50 

33

8. 

6.

,90 

31

Min 

Min

Adjust

Cfsm 

Cfsm

1.0

0.9

ed

Mean 

Mean

In. 

In.

5.47 

3.58

Ac-ft 

Ac-ft

Ac-ft 

Ac-ft

3 

2

6, 

4,

,970 

,590

460 

570
VENTURA RIVER BASIN 147

North Fork Matilija Creek at Matilija Hot Springs, Calif.

Location. Lat 34°29'33", long 119°18'20", in ffl£Nw£NEi sec. 29, T. 5 N., R. 23 ¥., on 

right bank at bridge on U. S. Highway 399, 0.7 mile north of Matilija Hot Springs and 

0.8 mile upstream from mouth.

Drainage area. 15.5 sq mi.

Records available. October 1928 to September 1932, October 1933 to September 1957. 

Frior to October 1953, published as "at Matilija."

Gage. --Water- stage recorder. Datum of gage is 1,142.02 ft above mean sea level (levels 

by Ventura County Water Resources Division). Prior to Nov. 12, 1948, water-stage 

recorder at site 0.3 mile downstream at different datum.

Average discharge. --28 years, 8.28 cfs (5,990 acre-ft per year); median of yearly mean 

discharges, 4.0 cfs (2,900 acre-ft per year).

Extremes . --Maximum discharge during year, 795 cfs Jan. 13 (gage height, 4.05 ft); mini- 

 mum daily, 0.2 cfs July 31 to Aug. 3, Aug. 15-28, Sept. 2-9.

1928-32, 1933-57: Maximum discharge, 5,580 cfs Mar. 2, 1938; minimum, 0.1 cfs for 

several days during 1929, 1931, 1951.

Remarks . Records good. Discharge measurements generally made six times a month.

Cooperation. Gage-height record and 69 discharge measurements furnished by Ventura County 

Water Resources Division.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O 

31

Tota:

Mean

Ac-ft

Oct.

0.5

.5

.6

.7

77

.7

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.5

.6

.5

.6

.6

.6

.6

.6

.6

.6 

.6

17.6

0.57

35

Nov.

0.6

.6

.6

.6

.JS

.6

.5

75

.5

.5

.5

.5

.5

.7

.6

.6

.6

.6

.6

.6

.6

.5

.6

.6

.6

.6

.6

.6

.6

.6

17.5

0.58

35

Dec.

O.7

.7

.7

.8

jl

.9

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.8

.8

.8

.8

.8

.9

.9

.8

.8

.8

.8

.8

.8

.8 

.8

24.1

0.78

48

Calendar year 1956: Max 245

Jan.

0.8 ~78~

.8

1.1

3.0

1.5

1.4

1.4

1.2

1.2

1.2

70

142

 T.4

5.4

4.3

3.8

3.3

2.6

2.4

2.1

2.1

2.1

2.2

2.3

3.8

3.0

2.8

2.8

2.8 

2.6

284.2

9.17

564

Feb.

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.8

2.6

2.4

2.2

2.2

2.2

2.2

2.1

2.1

2.1

2.1

2.1

2.1

2.0

57T

53

IT

8.1

6.4

5.7

28

-

162.3

5.80

322

Mln O.3

Mar.

37

10

8.9

8.1

7.4

6.7

6.0

6.O

5.4

4.8

4.6

4.3

4.O

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.6

3.6

3.3

3.0

2.8

2.8

2.8

2.8 

2.6

185.9

6.00

369

Apr.

2.4

2*. 4

2.4

2.2

2.2

2.2

2.2

2.2

2.1

2.2

2.1

2.1

2.1

2.1

2.1

10-&M

4.3

4.3

4.0

3.8

3.8

3.3

3.0

2.8

2.8

2.6

2.6

2.6

93.1

3.10

185

May

2.6

2.6

2.5

2.4

2.6

2.4

2.4

2.4

2.4

2.6

2.6

2.6

2.8

3.0

27S

2.2

2.1

2.4

3.0

2.4

2.1

2.0

2.0

2.0

1.8

1.6

T7Z

1.8

2.1

2.0

2.O

71.6

2.31

142

June

1.8

ITS

1.6

1.5

1.5

1.5

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.4

1.2

1.0

.9

.9

.9

.9

.9

.8

.8

.7

77

18

.7

.7

36.7'

1.22

73

July

0.7

is

.5

.5

.6

.5

.5

.5

.6

.5

.5

.5

.5

.4

.4

.4

.5

.5

.4

.5

.5

.5

.4

.5

.5

.5

.4

.4

.3 

.2

14.8

0.48

29

Aug.

0.2

'.2

.3

.3

.4

.4

.4

.4

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.4 

.4

8.4

O.27

17

Sept.

0.3

.2T2~

'.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.4

.4

.4

.4

.4

.5

.5

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

9.3

O.31

18

Mean 3.20 Ac-ft 2.32O

Water year 1956-57: Max 142 Mln 0.2 Mean 2.54 Ac-ft 1^840

Peak discharge (base, 40 cfs). Jan. 13 (1 a.m.) 795 cfs (4.O5 ft); Feb. 23 (5 a.m.) 288 cfs 

(2.68 ft); Feb. 28 (11 p.m.) 117 cfs (1.88 ft).

510529 O - 59 -11
148 VENTURA RIVER BASIN

San Antonio Creek at Casitas Springs, Calif.

Location. Lat 34°22'49", long 119°18'13", in Santa Ana Grant, on downstream side of 

bridge on U. S. Highway 399, 0.2 mile upstream from mouth and 0.9 mile north of 

Casitas Springs, Ventura County.

Records available. October 1949 to September 1957.

Gage. Water-stage recorder. Datum of gage is 307.55 ft above mean sea level (levels by 

Ventura County Water Resources Division).

Average discharge. 8 years, 2.99 cfs (2,160 acre-ft per year).

Extremes.--Maximum discharge during year, 570 cfs Feb. 23 (gage height, 6.61 ft); no flow 

for most of year.

1949-57: Maximum discharge, 3,800 cfs Jan. 15, 1952; no flow for several months 

each year.

Remarks. Records good. Discharge measurements generally made once a week.

Cooperation. Gage-height record, 10 discharge measurements, and 10 observations of no 

flow furnished by Ventura County Water Resources Division.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26.

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1'956: Max 357

Jan.

0

0

0

0

0

0

0

0

0

0

0

1.3

28

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

29.3

0.95

58

Feb.

C

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

~3.2 52

.4

.1 o 

7.5

-

63.2

2.26

125

Mln 0

Mar.

3.8

79

.6

.5

.6

.6

.6

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

15.5

0.50

31

Apr.

0.1

T

.1

.1

.1

.1

.1

.1

0

0

0

C

0

0

0

0

.1

.1

0

.1

.1

.1.1

.1

.1

.1

o

0

0

0

1.7

0.06

3.4

Mean 1.59

May

0

0

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Ac-ft 1,150

Water year 1956-57: Max 52 Mln 0 Mean 0.30 Ac-ft 217
VENTURA RIVER BASIN 149

Coyote Creek near Ventura, Calif.

Location. Lat 34°21'26", long 119°18'46", near southeast corner of Santa Ana Grant, on 

right bank 200 ft downstream from county highway bridge, 0.3 mile upstream from mouth, 

and 5.5 miles northwest of Ventura, Ventura County.

Drainage area. 41.1 sq mi.

Records available . October 1927 to September 1932, October 1933 to September 1957.

Gage. --Water-stae recorder. Altitude of gage is 230 ft (from topographic map). 

o Mar. 22, 1934, chain gage at site 200 ft upstream at different datum.

Prior 

Mar. 22,

1934, to Aug. 20, 1952, water-stage recorder at present site at datum 1.16 ft higher. 

Aug. 21, 1952, to June 1, 1954, auxiliary staff gage 200 ft upstream at datum 1.16 ft 

higher, read once daily.

Average discharge. 29 years, 12.0 cfs (8,690 acre-ft per year) ; median of yearly mean 

discharges, 3.7 cfs (3,400 acre-ft per year).

Extremes. Maximum discharge during year, 620 cfs Mar. 1 (gage height, 4.76 ft), from 

rating curve extended above 100 cfs on basis of slope-area determination of peak flow; 

no flow Aug. 21 to Sept. 30.

1927-32, 1933-57: Maximum discharge, 11,500 cfs Mar. 2, 1938, on basis of slopearea determination of peak flow; no flow at times in some years.

Remarks. Records good. Discharge measurements generally made twice a month. Small diversion above station for irrigation.

Cooperation. Three discharge measurements furnished by Ventura County Water Resources 

Division.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

0.2

.2

.2

.2

.2

.Z

.Z

.Z

.Z

.z

.z

.2

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.4 

-il.

8.5

0.27

17

Nov.

0.7

1.1TS~

1.0

1.0

.8

.3

.8

1.0

.9

.7

.7

.7

.7

.8

.7

.7

.6

.6

.6

.6

.6

.6

.6

i5.

.5

.5

.5

.5

.5

21.1

0.70

42

Dec.

0.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

7s

.5

.4

.4

.4

.4

.4

,3.

.3

.3

.3

.3

13.6

0.44

27

Jan.

0.3T3~

.3

.3

.7

.4

.4

.4

.4

.4

.4

.9

11

1.1

.8

.7

.7

.7

.7

.7

.7

.7

.6

.8

.7

.8

.8

.8

.8

.7 

.7

29.7

0.96

59

Feb.

0.7

.7

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

-4

T&

31

IT

8.5

4.4

3.3

16

-

.......

87.2

3.11

173

Mar.

142

22

14

10

8.6

7.5

6.1

5.6

5.2

5.0

4.4

4.1

3.8

3.2

3.2

3.2

3.0

2.9

2.9

2.5

2.2

1.8

2.0

1.8

1.8

1.6

1.5

1.5

1.4

TTT

277.4

8.95

550

Apr.

1.1

1.1

1.1

.8

.7

.8

.8

.8

.8

.8

.7

.7-.7

.6

.5

1.2

5.6

5.8

3.9

3.4

3.2

2.5

2.4r

2.0

1.8

1.8

1.6

1.6

54.1

1.80

107

May

1.4

1.4

1.4

1.4

1.5

1 .

1.4

1^4

1.5

1.4

1.4

1.3

1.2

1.0

1.0

.9

.8

.9

1.1

1.1

1.1

1.1

1.1

1.0

1.0

.9

.9

.8

.8

tf

35.0

1.13

69

June

0.7

4.8

.7

.7

.6

.6

.6

.5

.4

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

11.1

0.37

22

July

0.2J"2~

!i

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

3.3

0.11

6.5

Aug.

~7T 0.1

'.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0 

0

2.0

0.06

4.0

Sept.

0

0

0

Calendar year 1956: Max 1,750 Mln 0.2 Mean 8.77 Ac-ft 6,200

Water year 1956-57: Max 142 Mln 0 Mean 1.49 Ac-ft 1,080

Peak discharge (base, 450 cfs).--Mar. l (1:30 a.m.) 620 cfs (4.76 ft).
150 VENTURA RIVER BASIN

Ventura River near Ventura, Calif.

Location. Lat 34°21'05", long 119°18'23", in southeast corner of Santa Ana Grant, on 

right bank 500 ft downstream from county highway bridge at Poster Memorial Park, 

0.2 mile downstream from Coyote Creek, and 5 miles north of Ventura, Ventura County.

Drainage area. 187 sq mi.

Records available.--September 1911 to January 1914, October 1929 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 200 ft (from topographic map). Prior 

to Jan. 18, 1914, chain gage at site 370 ft upstream at different datum (destroyed by 

flood). October 1929 to Nov. 2, 1949, at site 370 ft upstream at present datum.

Average discharge.--30 years (1911-13, 1929-57), 58.0 cfs (41,990 acre-ft per year); 

median of yearly mean discharges, 27 cfs (19,500 acre-ft per year). Average combined 

discharge of river and diversion, 24 years (1933-57), 71.1 cfs (51,470 acre-ft per 

year); median of combined yearly mean discharges, 33 cfs (23,900 acre-ft per year).

Extremes.--Maximum discharge during year, 936 cfs Jan. 13 (gage height, 7.66 ft); no flow 

Sept. 5-30.

1911-14, 1929-57: Maximum discharge, 39,200 cfs Mar. 2, 1938 (gage height, 

19.2 ft), from rating curve extended above 7,700 cfs on basis of slope-area and 

contracted-opening determinations of peak flow; no flow at times many years.

Remarks. Records good. Discharge measurements or observations of no flow generally made 

twice a month. Plow partly regulated by Matilija Reservoir since Mar. 14, 1948 (see 

p. 145). Water diverted through pipeline at dam (Matilija Reservoir) to Ojai Valley 

for irrigation since May 1951. City of Ventura diverts water above station for municipal supply. For records of combined discharge of river and diversion, see following 

page.

Cooperation. Gage-height record for diversion weir furnished by city of Ventura.

Rating table, water year 1956-57 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1 to Jan. 7)

4.9

5.0

5.1

5.2

5.3 

5.5 

6.0 

6.5

5.7

12

31

151

340

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26'

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.2

.2

.2

.2

.2

.3

.3

.3

.2

.2

.2

.1

7T

.1

.1

.2

.2

.3

.4

.4

.3

.2

.2

.2

.2

.2

.2

.2

:2

.2

.2

6.7

0.22

13

Nov.

0.1

.1

.5

.5

.7

.5

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.2

.2

.3

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

9.5

0.32

19

Dec.

0.2

.2

.2

.2

.3

.4

.2

.2

.2

.4

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.4

.4

.4

.4

7.8

0.25

15

Jan.

0.4

.3

.3

.3

.6

.4

.5

.5

.5

.5

.5

.9

199

6.2

2.9

2.2

2.2

2.0

2.0

2.0

2.0

1.6

.8

2.0

2.0

2.0

2.0

1.8

1.6

1.6

1.6

243.2

7.85

482

Feb.

1.2

.6

.7

.7

.7

.7

.8

1.4

1.4

1.4

1.4

1.4

.7

.4

.3

.2

72

.2

.2

.2

.2

.2

108

23

14

7.3

5.7

27

-

-------

200.2

7.15

397

Calendar year 1956: Max 2,710 Min 0

Mar.

227

36

21

15

12

9.7

9.1

7.9

13

17

11

5.7

5.2

3.8

3.8

3.8

3.8

3.8

3.8

3.2

2.9

2.9

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

445.7

14.4

884

Apr.

2.7

2.7

2.7

2.2

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.8

1.6

1.2

2.2

34

11

8.4

10

5.7

3.5

2.9

2.9

2.9

2.7

2.7

2.7

2.7

127.2

4.24

252

May

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.4

2.4

2.2

1.2

.6

.5

.4

.6

1.0

.9

.8

.7

.5

.5

.5

.5

.6

.5

.4

.4

.4

45.0

1.45

89

June

"73 0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.1!

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

9.8

0.33

19

July

"73 0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

8.2

0.26

16

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

6.0

0.19

12

Sept.

~7T 0.1

.1

.1

0

0

0

0

o

o

0

o

0

0

0

0

0

0

o

o

0

0

0

0

0

0

0

0

0

0

0.4

0.01

1.0

Mean 13.7 Ac-ft 9,960

Water year 1956-57: Max 227 Min 0 Mean 3.O4 Ac-ft 2,200

Peak discharge (base, 500 cfs).--Jan. 13 (3:30 a.m.) 936 ofs (7.66 ft); Mar. 1 (1:45 a.m.) 790 cfs 

(7.41 ft).
VENTURA RIVER BASIN 151

Ventura River near Ventura, Calif . Continued

Combined discharge, In cubic feet per second, of Ventura River and diversion near Ventura, Calif., 

water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17 

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

4.8

4.8

4.8

4.7

5.4

5.7

575

5.0

4.8

4.7

4.6

4.2

4.0

4.1

4.1

4.3

4.3 

4.5

5.3

5.4

4.8

4.6

3.8

3.0

2.9

3.0

3.2

3.2

3.2

3.3

3.5

133.3

4.30

264

Nov.

3.5

3.7

4.1

4.2

4.5

4.0

3.9

3.8

3.8

3.8

3.7

3.7

3.7

3.8

3.8

3.7

3.7 

3.6

3.5

3.7

3.8

3.7

3.6

3.5

3.5

3.4

3.4

3.3

3.2 373

110.7

3.69

220

Dec.

3.4

3.4

3.3

3.4

3.6

3.7

3.5

3.4

3.6

3.7

3.6

3.5

3.5

3.5

3.6

3.6

3.5 

3.4

3.4

3.4

3.4

3.3

3.3

3.2

2.9

4.0

4.9

475

4.5

4.3

4.0

112.4

3,63

223

Jan.

2.3

370

4.4

4.3

4.8

3.8

3.9

3.9

3.9

3.9

3.9

4.3

202

9.6

6.8

5.9

5.9 

5.6

5.6

5.6

5.1

4.0

4.6

5.6

5.6

5.6

5.6

5.4

5.2

5 2

5.1

350.4

11.3

695

Feb.

6.1

6.5

6.5

6.4

6.3

6.1

5.8

5.5

5.4

5.4

5.2

5.1

5.4

6.5

5.9

4.5

It!

5.1

5.9

5.6

5.4

113 ~Z1

18

12

11

32

334,8

12.0

664

Mar.

~U232

26

20

17

15

14

13

18

22

15

12

16

12

11

11

11 

11

11

9.9

8.9

10

11

8.9

10

13

12

9.3

8.0 'a~n

o .u

8*5

645.5

20.8

1,280

Apr.

12

11

9.4

11

12

10

10

10

9.9

9.9

9.8

11

11

10

8.9

10~~ 8.0

40

19

16

15

12

10

9.7

10

11

11

11

11

10

359.6

12.0

713

May

10

10

10

10

10

10

10

9.9

9.4

9.3

9.1

9.2

9.2

8.5

8.2

8.1

fc§

9.2

9.5

11

10

8.6

8.6

9.1

9,1

9.0

12.

12

9 5

6.3

292.6

9.44

580

June

10

11"9.7

9.4

9.2

9.8

10

8.9

8.3

8.4

8.4

8.4

8.4

8.3

8.4

8.2

7.6 

7.1

7.1

7.3

7.3

7.4

7.6

7.6

7.4

7.4

7.4

7.2

7.1

7,0

247.3

8.24

491

July

7.9

T7T

7.3

7.1

6.7

6.7

6.6

6.2

6.0

6.2

6.5

6.4

6.5

6,3

7.1

7.0

6.7

5.9

5.7

6.6

6.3

5.6

575- 5.1

5.4

5.5

5.6

5.6

6.5

6 ,4

196.6

6.34

390

Aug.

5.8

576

5,5

5.6

4.8

4.3

4.6

4,7

4.6

4.6

4.6

5.1

5.8

5.4

5.1

5.1

4,9 

4.9

5.3

5.2

5.2

5.1

4.9

5.0

5.1

4.1

3^5.

4.2

4,8

4.9

153.2

4.94

304

Sept.

4.9

4.7

4.7

4.7

4.6

4.4

4.5

5.8

6^1

5.9

5.8

5.7

3,7

2.9

4.7

5.9

5.6 

5.4

5.2

4.9

3.4

3.8

5.2

4.9

4,6

4.5

4.5

3.1

SJL

4.4

141.4

4.71

280

Calendar year 1956: Max 2,720 Mln 2.1 Mean 2O.6 Ac-ft 14,930

Water year 1956-57: Max 232 Mln 2.3 Mean 8,43 Ac-ft 6,loO
152 CARPINTERIA CREEK BASIN

Carpinteria Creek near Carpinteria, Calif.

Location. Lat 34°24'04", long 119°29'08". in El Rincon Grant, on left bank at upstream 

side of bridge on State Highway 150, 200 ft downstream from Gobernador Creek and 

1.8 miles northeast of Carpinteria, Santa Barbara County.

Drainage area. 13.8 sq mi.

Records available. January 1941 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 130 ft (from topographic map).

Average discharge. 16 years, 1.40 cfs (1,010 acre-ft per year); median of yearly mean 

discharges, 0.4 cfs (290 acre-ft per year).

Extremes. Maximum discharge during year, 77 cfs Feb. 28 (gage height, 2.74 ft); no flow 

for most of year.

1941-57: Maximum discharge. 2,440 cfs Jan. 15, 1952 (gage height, 7.75 ft), from 

rating curve extended above 500 cfs on basis of slope-area determination of peak flow; 

no flow at times each year.

Remarks. Records fair. Discharge measurements or observations of no flow generally made 

twice a month. Gobernador Land and Water Co. diverts from Gobernador Creek 1.8 miles 

above station. Small lake three-quarters of a mile southeast of station and outside 

the drainage area stores storm runoff and surplus water diverted by Gobernador Land 

and Water Co. from Gobernador Creek. At times this lake is drained by pumping water 

into Gobernador Creek 1,000 ft above station. No pumping occurred this year.

Revisions (water years) . WSP 1061; 1943.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

1718"

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.5

. 2

.6

1.1

.4

3.8

0.13

7.S

Dec.

0

0

0

Calendar year 1956 : Max 123

Jan.

0

0

0

0

0

0

0

0

0

0

0

.6

1.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.1

0.07

4.2

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

0

11

11.2

0.40

22

Mar.

17

T.I

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

18.1

0.58

36

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.4

1.3

o

0

0

0

0

0

0

0

0

0

0

0

1.7

0.06

3.4

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.5

.7

.3

.7

.8

.6

1.1

o 1.2

0

0

5.9

0.19

12

June

0

0

0

~1.0

.9

.4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.5

0.08

5.0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Mln 0 Mean 0.50 Ac-ft 360

Water year 1956-57 : Max 17 Mln 0 Mean 0.12 Ac-ft 90

Peak discharge (baae, 25 cfa). Feb. 28 (11 p.m.) 77 efa (2.74 ft).
ATASCADERO CREEK BASIN 153

Atasoadero Creek near Goleta, Calif.

Location.--Lat 34°25'29", long 119°48'39", In La Goleta Grant, on downstream side of 

left-bank abutment of highway bridge 500 ft (revised) downstream from Maria Ygnaclo 

Creek, 1.3 miles upstream from mouth, and 1.3 miles southeast of Goleta, Santa Barbara 

County.

Drainage area.--18.3 sq ml.

Records available. October 1941 to September 1957. Prior to October 1947, published as 

Alascadero Creek near Goleta.

Gage. Water-stage recorder. Altitude of gage Is 20 ft (from topographic map).

Average discharge. 16 years, 2.02 cfs (1,460 acre-ft per year); median of yearly mean 

discharges, 0.9 cfs (650 acre-ft per year).

Extremes. Maximum discharge during year, 408 cfs Jan. 13 (gage height, 6.89 ft); no flow 

for many days.

1941-57: Maximum discharge, about 4,500 cfs Jan. 15-, 1952 (gage height, -10.85 ft), 

estimated on basis of records for nearby streams; no flow for many days each year.

Remarks. Records fair. Discharge measurements or observations of no flow generally made 

EwTce a month. Small diversions above station for Irrigation. Much of low flow 

results from return waste water from local Irrigation.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o .1

.1

.1

0

0

0

.1

0.4

0.01

0.8

Dec.

0.1

06~

0

0

0

0

0

0

0

.3

0

0

0

0

0

0

.1

0

0

.1

0

0

0

0

.1

 0

0

0

0

0

0.7

0.02

1.4

Calendar year 1956: Max 703

Jan.

0

0

0

0

0

0

0

0

0

0

0

4.8

65

.3

.1

.1

0

0

0

.4

.3

.1

0

.1

.1

3.1

.2

.1

.6

.2

.1

75.6

2.44

150

Feb.

0

0

0

0

0

0

0

.2

.4

.2

.1

.1

.1

0

0

0

0

0

.1

.1

0

0

73

T.6

.7

.4

.2

61

-

141.2

5.04

280

Mar.

20

4.0

1.4

.6

.4

.3

.2

.2

2.4

.5

.2

.2

.2

.2

.1

.1

.1

.1

.2

.2

.1

.1

0

0

0

0

.1

.2

.5

0

0

32.6

1.05

65

Apr.

0

0

0

0

0

0

0

0

.1

.1

0

0

0

.1

.1

.1

4.6

11

.7

3.4

1.6

.4

.2

.1

.1

.1

.1

0

0

0

22.8

0.76

45

May

0

0

0

0

0

0

0

0

0

0

.1

.2

0

0

0

0

0

0

11

.2

0

0

0

0

0

0

0

0

0

0

0

11.5

0.37

23

June

0.4

00"

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

b

0

0

0

0

0

0

0

0

0

0

0.4

0.01

0,8

July

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

0

0.3

0.01

0.6

Aug.

0

0

0

Sept.

0

0

0

Mln 0 Mean 2.82 Ac-ft 2,650

Water year 1956-57: Max 73 Mln 0 Mean 0.78 Ac-ft 567

Peak discharge (base, 60 cfs). Jan. 13 (2:30 a.m.) 408 cfs (6.89 ft); Feb. 23 (7 a.m.) 288 

(6.58 ft); Feb. 28 (4:30 p.m.) 201 cfs (6.37 ft).
154 SAN JOSE CREEK BASIN

San Jose Creek near Goleta, Calif.

Location. Lat 34°27'33", long 119°48'29", in La Goleta Grant, on left pier of Patterson 

Avenue Bridge, 1.1 miles downstream from unnamed tributary and 1.7 miles northeast of 

Goleta, Santa Barbara County.

Drainage area. 5.54 sq mi.

Records available. January 1941 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 100 ft (from topographic map), prior 

tfo Dec. 24, 1955, at datum 4.00 ft higher.

Average discharge. 16 years, 1.35 cfs (977 acre-ft per year); median of yearly mean dlscharges, 0.9 cfs (650 acre-ft per year).

Extremes.--Maximum discharge during year, 286 cfs Apr. 17; maximum gage height, 3.54 ft 

Jan. 13; no flow for many days.

1941-57: Maximum discharge, 1,960 cfs Apr. 4, 1941, from rating curve extended 

above 850 cfs by logarithmic plotting; maximum gage height, 11.24 ft, present datum, 

Jan. 21, 1943; no flow at times each year.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements generally made twice a month during low flows and once a week 

during moderate to high flows. Many small diversions above station for irrigation.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

.1

0

0

0.2

0.006

0.4

Nov.

0

0

0

0 

0

0

0

0

0

0

0

0

]_

TT.1

.1.1.1.1.1

a.l

a.l

a.l

a.l

a.l

aO

aO

aO

aO

aO

1.3

0.04

2.6

Dec.

aO

0

.1

.1 

.5

.2

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

3.4

0.11

6.7

Jan.

0.1

7T

.1

.3 

.8

.7

.8

.8

.7

.7

.7

21

~2.5 35

.9

.6

.5

.5

.4

1.7

.8

.6

.7

.7

1.0

2.7

1.0

.8

1.1

.9 

.8

80.0

2.58

159

Feb.

0.7

.6

.5

.5 

.5

.5

.5

.7

.8

.6

.5

.5

.4

71

.4

.4

.4

.4

.4

.4

.4

.5

66.

6.7

2.8

1.8

1.4

45

134.7

4.81

267

Mar.

~6.2 19

3.2

2.2 

1.7

1.3

1.0

.8

1.8

1.9

.9

.6

.5

.3

.3

.3

.2

.3

.3

.2

.2

.Z

.2

.2

.2

.3

.4

.2

.2

.1

.1

45.3

1.46

90

Apr.

 

0.1

. 1

.2 

.2

.3

.3

.3

.3

.3

.5

.5

.4

.4

.4

.4

3.8

4.3

3.0

1.8

1.1

1.9

1.2

.8

.6

.4

.3

.5

69.5

2.32

138

May

1.0

.9

.8

.8 

.8

.8

.8

.9

.8

.8

1.8

1.6

.9-

.8

.7

.6

.6

1.5

14 "T.4

3.0

2.8

2.5

a2

al.5

al

al

al

.7

.6

50.8

1.64

101

June

0.5

.4

.5T!

.4

.3

.3

.4

.3

.3

.4

.3

.3

.2

.2

.2

.2

.1

.1

0

rj

.1

.1

0

0

0

0

.1

.2

7.1

0.24

14

July

0.2

.1

.1

.1 

.1

.1

.1

0

7J

.1

.1

0

0

0

0

.1.1.1

0

.1

.1.1

0

0

.1

.1

.1.1.1.1 .1

2.3

0.07

4.6

Aug.

p_a

2

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0.2

0.006

0.4

Sept.

0

0

0

Calendar year 1956: Max 266 Min 0 Mean 2.07 Ac-ft 1,500

Water year 1956-57: Max 66 Min 0 Mean 1.08 Ac-ft 784

Peak discharge (base, 100 cfs). Jan. 13 (12:30 a.m.) 210 cfs (3.54 ft); Feb. 23 (3:30 a.m.) 276 ofs 

(3.02 ft); Feb. 2B (2 p.m.) 167 cfs (2.66 ft); Apr. 17 (5:50 p.m.) 286 cfs (5,05 ft)._________
SANTA YNEZ RIVER BASIN 155

Santa Ynez River at Jameson Lake, near Montecito, Calif.

Location. Lat 34°29'32", long 119°30'25", on upstream side of Junoal Dam, 6.5 miles north 

of Carpinteria and 8 miles northeast of Montecito, Santa Barbara County.

Drainage area.--13.8 sq mi (revised) not including Alder Creek.

Records available.--December 1930 to September 1957. Prior to October 1938, published as 

"at Juncal Reservoir, near Montecito."

Sage. Water-stage recorder on lake and water-stage recorder and sharp-crested weir on 

outlet conduit. Datum of gage is 2,021.6 ft above mean sea level (Bureau of Reclamation bench mark), or 2,000 ft above arbitrary datum (called sea level) generally used 

for works in this vicinity.

Remarks.--Records of total inflow represent all water reaching Jameson Lake, including 

rainfall on the lake, computed on basis of records of storage, diversion to the city of 

Montecito (draft), spill and release to river, and evaporation. Records of net runoff 

exclude rainfall on water surface, computed on basis of area and records of precipitation. Monthly evaporation from lake surface computed on basis of evaporation from 

Class A pan using coefficient of 0.80. Capacity'and area ratings for this lake are 

based on surveys made in 1948. Lake capacity at spillway level (gage height, 225.0 ft), 

6,760 acre-ft. Dead storage, 268 acre-ft, below lowest outlet at gage height 139.0 ft, 

included in these records. There is no regulation or diversion above Jameson Lake. 

A part of the flow of Alder Creek, which enters Santa Ynez River 2 miles downstream 

from Juncal Dam, is diverted at elevation 2,250 ft through a tunnel to Jameson Lake, and 

is included in these records.

Cooperation.--Reservoir-operation records and related data furnished by Montecito County 

Water District.

Revisions (water years). WSP 1151: 1948.

Monthly runoff, water year October 1956 to September 1957

Month

Calendar year 

1956.

Water year 

1956-57.

Gage 

height 

(feet)t

Jameso

191.99

185.76

-

183.42

183.75

183.44

166.35

-

Contents 

(acrefeet)

T Lake

3,031

2,520

-

2,343

2,345

1,252

-

Change 

in 

contents 

(acre 

feet)

_

-1,183

-215

-1,779

Draft 

(ao refeet)

1,811

200

2,209

Spill and 

release 

(acre-

_

0

0

0

0

Evaporat ion 

(acre-

_

299

2

5

22

21

225

Total 

inflow 

(acre-

_

2

927

78

79

28

6

655

Rain on

reservoir 

(acrefeet)

_

140

56

24

5

0

122

Net 

runoff 

(acre-

_

-6

2

787

71

54

89

69

50

30

28

6

535

t At 6 p.m. on last day of month.

Note. For months when Inflow to the reservoir was small and other elements were relatively large, 

negative or discordant figures of Inflow or runoff may" appear. To the extent that such discrepancies may be attributed to inaccuracies in the capacity rating, quantities too small for periods of 

falling stage In the reservoir are compensated by quantities too large for periods of corresponding 

rising stage. Inaccuracies in figures of draft or evaporation, which may be within reasonable 

limits in these figures, may result in disproportionately large inaccuracies in small figures of 

Inflow or runoff computed as residuals.
156 SANTA YNEZ RIVER BASIN

Santa Ynez River above Gibraltar Dam, near Santa Barbara, Calif.

Location.--Lat 34°31'37", long 119°41'10", on upstream side of Gibraltar Dam, 7 miles 

north of Santa Barbara, Santa Barbara County.

Drainage area.--216 sq mi.

Records available. April 1920 to September 1957. November 1903 to April 1907, October 

1907 to January 1908, February 1910 to November 1918, at river gaging station at dam 

site; records not equivalent because records since April 1920 are based on reservoir 

operation. Prior to October 1943, published as "near Santa Barbara."

Gage.--Water-stage recorder on reservoir and water-stage recorder and sharp-crested weir 

on diversion canal below dam. Spill and release measured at river gaging station 

below dam (see following page). Datum of reservoir gage is at mean sea level (datum 

of 1929). Prior to Oct. 1, 1955, at datum 21.82 ft higher.

Remarks. Records of total inflow represent all water reaching Gibraltar Reservoir,

including rainfall on reservoir, computed on basis of records of storage, diversion to 

city of Santa Barbara (draft), spill and release to river, and evaporation. Records 

of net inflow exclude rainfall on water surface, computed on basis of area and records 

of precipitation. Monthly evaporation from reservoir surface computed on basis of 

evaporation from Class A pan using coefficient of 0.80. Reservoir capacity and area 

tables are based on surveys made in 1956. Reservoir capacity at spillway level 

(elevation, 1,399.82 ft), 14,800 acre-ft. Dead storage, 716 acre-ft, below lowest 

outlet at elevation 1,333.86 ft, included in these records. Flow regulated by Jameson 

Lake since December 1930 (see preceding page).

Cooperation.--Reservoir-operation records and related data furnished by city of Santa 

Barbara.

Revisions (water years).--WSP 706: 1921-22. WSP 1041: 1944. WSP 1395: Drainage area.

Monthly inflow, water year October 1956 to September 1957

Month

Calendar year 1956......

April.....................

July......................

Water year 1956-57......

Elevation 

(feet)t

Contents 

(acrefeet)

Gibraltar Reservoir

1,391.95 

1,390.30 

1,388.59 

1,387.65

-

1,389.94 

1,391.96 

1,394.39 

1,395.79 

1,396.45 

1,395.27 

1,393.06 

1,391.19 

1,389.06

-

11,662 

11,078 

10,500 

10,193

-

10,954 

11,666 

12,572 

13,116 

13,379 

12,912 

12,070 

11,390 

10,655

-

Change 

in 

contents 

(acrefeet)

-584 

-578 

-307

+1,214

+761 

+712 

+906 

+544 

+263 

-467 

-842 

-680 

-735

-1,007

Draft 

(acrefeet)

500 

526 

283

5,918

84 

101 

65 

135 

25 

349 

645 

474 

625

3,812

Spill 

and 

release 

(acrefeet)

4 

4 

4,

3,474

5

4 

1 

1 

0 

16 

20 

9 

4

72

Evaporation 

(acrefeet)

99 

80 

46

1,619

24 

35 

93 

121 

131 

225 

290 

272 

189

1.6O5

Total 

inflow 

(acrefeet)

19 

32 

26

12,225

874 

852 

1,065 

801 

419 

123 

113 

75 

83

4,482

Rain on 

reservoir 

(acrefeet)

2 

0 

1O

449

239 

129 

21 

145 

44 

1 

O 

O 

0

591

Net 

inflow 

(acrefeet)

17 

32 

16

11,776

635 

723 

1,044 

656 

375 

122 

113 

75 

S3

3,891

t At 6 p.m. on last day of month. 

Note. For months when inflow to the reservoir was small and other elements were relatively large, 

negative or discordant figures of Inflow may appear. To the extent that such discrepancies may be 

attributed to inaccuracies in the capacity rating, quantities too small for peritfds of falling stage 

in the reservoir are compensated by quantities too large for periods of corresponding rising stage. 

Inaccuracies in figures of draft or evaporation, which may be within reasonable limits in these 

figures, may result in disproportionately large inaccuracies in small figures of Inflow or runoff 

computed as residuals.
SANTA YNEZ RIVER BASIN 157

Santa Ynez River below Gibraltar Dam, near Santa Barbara, Calif.

Location.~Lat 34°31'28", long 119°41'll", in southwest portion of Los Padres National 

Forest, on left bank 700 ft downstream from Gibraltar Dam and 7 miles north of Santa 

Barbara, Santa Barbara County.

Drainage area. 216 sq mi.

Records available. April 1920 to September 1957 (monthly discharge only prior to October 

1941).

Gage. Water-stage recorder. Altitude of gage is 1,250 ft (from topographic map). Waterstage recorder and sharp-crested weir on outlet channel below dam and water-stage 

recorder on Gibraltar Reservoir used as supplementary gages. Prior to Apr. 17, 1952, 

water-stage recorder on Gibraltar Reservoir used as principal gage. Apr. 17 to Oct. 15, 

1952, staff gage at same site and datum.

Average discharge. 37 years, 34.7 cfs (25,120 acre-ft per year), unadjusted; median of 

yearly mean discharges, 10 cfs (7,200 acre-ft per year).

Extremes. Maximum discharge during year, 1.5 cfs Jan. 12 (gage height, 4.50 ft); no flow 

Mar. 14 to Apr. 16, Apr. 27 to June 20.

1920-57: Maximum discharge, 35,500 cfs Mar. 2, 1938, computed from spillway rating; 

no flow at times most years.

Remarks. Records good. Discharge represents flow in Santa Yhez River passing Gibraltar 

BUT Plow regulated by Gibraltar Reservoir and Jameson Lake (see p. 155). City of 

Santa Barbara diverted 3,810 acre-ft during the water year from Gibraltar Reservoir; 

Monteeito County Water District diverted 2,210 acre-ft during the water year from 

Jameson Lake.

Revisions (water years). WSP 706: 1921-22. WSP 1041: 1944.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17-

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

 0.07

.07

.07

.08

TOT

.07

.08

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.06

.07

.07

.07

.07

*.07

.07

.07

2.18

0.070

4.3

Nov.

0.08

T55

.08

.07

755

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.07

.07

.07

.07

.07

.07

.07

.07

.07

*.07

2.29

0.076

4.5

Dec.

0.07

.07

.07

.07

.07

.06

.05

TOT

.08

.08

.08

.08

TOT M

.06

.06

.06

.06

.06

.06

.06

.05

.05

.05

.06

.05

.06

.06

.05

.06

.05

1.96

0.063

3.9

Jan.

0.05

T5S

.05

.06

.09

.05

'.06 .05

.07

.08

.08

.30

T2T

.05

.05

.05

.05

.05

.05

.06

.05

.05

.05

.05

.06

.07

.07

.07

.11

.07

.05

2.32

0.075

4.6

Feb.

0.05

.05

.05

*.06

.04

.04

.04

.08

.08

.07

.07

.07

.06

.05

.04

.04

.05

.04

.04

.04

.04

.04

.47

TTO

.07

.04

.04

.17

-

2.03

0.072

4.0

Mar.

0.11 "TOT

.04

.04

*.03

.03

.02

.02

.03

.03

.02

.02

v02

00"

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0.48

0.015

1.0

Apr.

£.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.04

.09

TOT

.04

.05

.04

.04

.03

.02

.02

0

0

*0

0

0.41

0.014

0.8

May

(*)

0

0

0

June

0

ff

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.62

.97

1.1

T75

.80

.74

.77

.80

.76

.74

8.30

0.277

16

July

~^T 0.74

.40

.40

.41

.39

.39

.31

.31

.35

.33

.30

.32

.32

.31

.25

.24

Tf£

.25

.25

.25

.25

*.26

.26

.26

.26

.25

.25

.25

.25

.26

9.84

0.317

20

Aug.

"725 0.26

.25

.23

.22

.20

.20

.22

.22

.20

.19

.19

.16

.13

.09

.09

.09

.09

.09

.09

.09

.09

.09

.09

.09

.09

.09

.07

.07

*.07

.05

4.35

0.140

8.6

Sept.

0.06 ~^57

TOT

.07

.07

.07

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.07

.07

.07

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

1.88

0.063

3.7

Calendar year 1956: Max 138 Mln 0 Mean 4.73 Ac-ft 3,480

Water year 1956-57! Max 1.1 Mln 0 Mean 0.099 Ac-ft 71

30 computed from unpublished
158 SANTA YNEZ RIVER BASIN

Santa Ynez River below Los Laureles Canyon, near Santa Ynez, Calif.

Location. Lat 34°32'35", long 119°51'45", in San Marcos Grant, on left bank 0.1 mile 

downstream from Los Laureles Canyon Creek and 13 miles east of Santa Ynez, Santa 

Barbara County.

Drainage area. 277 sq mi.

Records available. April 1947 to September 1957.

Gage. Water-stage recorder. Datum of gage is 794.52 ft above mean sea level, datum of 

T929 (Bureau of Reclamation bench mark).

Average discharge. 10 

discharges, 1.8 cfs

/ears, 21.9 cfs (15,850 acre-ft per year); median of yearly mean 

(1,300 acre-ft per year).

Extremes. Maximum discharge during year, 532 cfs Feb. 23 (gage height, 6.68 ft); no 

flow Oct. 1 to Jan. 12, June 16, 17, 20-27, July 1 to Sept. 30.

1947-57: Maximum discharge, 33,000 cfs Jan. 15, 1952 (gage height, 15.6 ft), from 

rating curve extended above 6,400 cfs on basis of slope-area determination of peak 

flow at station below Gibraltar Dam; no flow for several months each year.

Remarks. Records good. Discharge measurements or observations of no flow generally 

made twice a month. Plow regulated by Jameson Lake and Gibraltar Reservoir (see 

p. 156). Water diverted out of basin from these reservoirs to cities of Montecito 

and Santa Barbara for municipal supply. Flow affected by intermittent local pumping 

for irrigation above station and from infiltration gallery in river bed at station.

Rating tables, water year 1956-57 (gage height, In feet, and discharge. In cubic feet per second) 

(Shifting-control method used Feb. 1-23)

Oct. 1 to Jan. 31

4.04

4.2

4.3

4.4

4.5

.2 

1.1 

3.3 

8.3

4.6

4.7 

5.0 

5.5-

26

62

157

3.9

4.1

4.2

4.3

4.4

Feb. 1 to Sept. 30

4.5

4.6 

4.9 

5.3 

5.6

1.8 

3.7

6.7

11

32

79

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

O

0

Nov.

0

O

0

Dec.

0

0

0

Jan.

0

O

0

0

0

0

O

0

0

0

0

O

64

.9

.3

.2

.1

.2

.2

.2

.2

.2

.3

.3

.3

.4

.5

.5

.9

.9

.8

71.4

2.30

142

Feb.

0.7

.7

.7

.7

_._§

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

132

36

18

12

9.6

60

-

-------

281.2

10.0

558

Mar.

55

3T

26

21

17

15

13

11

12

12

9.1

7.9

7.5

7.0

6.3

6.0

5.7

5.4

5.1

4.8

4.2

3.9

3.5

3.5

3.5

2.7

2.9

2.7

2.7

2.5

275

312.4

10.1

620

Apr.

2.3

2.1

1.8

1.3

1.7

1.7

1.7

1.7

1.6

1.7

1.7

1.6

1.4

1.3

.5

.4

26

28

14

14

14

10

8.7

7.5

6.6

5.4

4.5

4.2

3.6

3.3

174.3

5.81

346

May

3.3

3.1

2.5

1.6

1.9

2.3

2.3

2.3

2.3

2.3

3.3

3.5

2.9

2.3

2.1

1.9

1.8

2.1

42

^.3

2.7

2.3

2.1

1.8

1.6

1.4

.9

.2

.4

1.0

.9

104.4

3.37

207

June

0.9

.8

.7

.7

.7

.5

.1

.1

.2

.6

.6

.6

.6

.6

.2

O

0

.1

.2

O

0

0

O

0

0

0

0

.1

.2

.1

8.6

0.29

17

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 638 Mln O Mean 11.1 Ac-ft 8.O9O

Water year 1956-57: Max 132 Mln 0 Mean 2.61 Ac-ft 1.89O
SANTA YNEZ RIVER BASIN 159

Santa Cruz Creek near Santa Ynez, Calif.

Location. Lat 34°35'45", long 119°54'25", in Tequepls Grant, on right bank 2.2 miles 

upstream from mouth and 10 miles east of Santa Ynez, Santa Barbara County.

Drainage area. 73.8 sq mi (revised).

Records available. October 1941 to September 1957.

Gage. Water-stage recorder. Datum of gage is 786.63 ft above mean sea level (levels 

b"y Bureau of Reclamation). Prior to Jan. 22, 1943, at site 1.9 miles downstream at 

different datum (destroyed by flood). Jan. 22, 1943, to Sept. 26, 1952, at site 

1.7 miles downstream at different datum.

Average discharge.--15 years (1941-42, 1943-57), 9.70 cfs (7,020 acre-ft per year); 

median of yearly mean discharges, 6.0 cfs (4,300 acre-ft per year).

Extremes. Maximum discharge during year, 559 cfs Jan. 13 (gage height, 6.50 ft); no 

flow Oct. 1 to Jan. 12, July 2 to Sept. 30.

1941-57: Maximum discharge not determined, occurred Jan. 22, 1943; no flow at 

times in 1953-57.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements or observations of no flow generally made twice a month.

Rating table, water year 1956-57 (gage height, In feet,

discharge, In cubic feet per second) 

(Shifting-control method used June 23 to July 7)

3.9

4.0 1.0

4.1

4.2

4.3

4.4

2.0 

3.5

9.0

4.7 

5.0 

5.3 

5.7 220

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

o

Jan.

0

0

0

0

0

0

0

0

0

0

o

0

148

14

4.6

1.9

.7

.3

a.l

.9

1.7

.8

.5

.8

1.1

2.5

3.3

2.5

2.7

2.2

1.7

190.3

6.14

377

Feb.

1.7

1.6

1.6

1.5

1.3

1.2

1.3

10

29

11

7.9

5.8

a4.9

3.9

3.5

3.3

3.3

3.3

3.2

3.2

3.2

3.2

41

39

16

9.3

7.6

43

-

264.8

9.46

525

Mar.

45

20

15

11

8.8

8.2

7.0

6.7

8.6

8.8

7.3

7.0

6.7

6.4

6.4

6.1

6.1

6.4

6.4

5.8

5.8

5.6

5.3

5.3

5.3

5.1

4.9

4.4

4.4

4.4

4.4

258.6

8.34

513

Apr.

4.2

3.9

3.9

3.7

3.5

3.5

3.5

3.5

3.5

3.5

3.7

3.5

3.3

3.2

3.0

2.8

4Tl

20

11

8.2

7.6

6.T

6.1

5.8

4.9

4.4

3.9

3.7

-3.3

3 2

149.4

4.98

296

May

3.2

3.2

3.2

3.0

2.7

2.5

2.7

3.3

3.7

3.9

4.6

5.8

4.4

3.7

3.7

3.2

3.0

3.3

34

17

9.3

7.0

6.4

5.6

5.1

4.2

3.2

3.2

3.3

3.5

3.0

167.9

5.42

333

June

2.5

^2

.8

.6

.4

.4

.5

.6

.7

.1

.1

.5

.4

.1

. 0

.8

.5

a. 4

a. 4

a. 3

a. 2

a. 2

a.l

a.l

a.l

.1

.1

.1

.1

.1

28.5

0.95

57

July

0.1 0~

0

0

0

o

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 1,380 Mln 0 Mean 11.4 Ac-ft 8,300

Water year 1956-57: Max 148 MLn 0 Mean 2.90 Ac-ft 2,100

Peak discharge (base, 100 cfs).--Jan. 13 (5 a.m.) 559 cfs (6.50 ft); Feb. 28 (9 p.m.) 112 cfs 

(5.40 ft).____________________________________________________________________ 

a No gage-height record; discharge Interpolated.
160 SANTA YNEZ RIVER BASIN

Cachuma Creek near Santa Ynez, Calif.

Location. Lat 34°36'35", long 119°55'55", in Tequepis Grant, on right bank 2.7 miles 

downstream from Lazaro Canyon, 2.3 miles upstream from mouth, and 8.5 miles east of 

Santa Ynez, Santa Barbara County.

Drainage area. 20.5 sq mi.

Records available. October 1950 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 800 ft (from topographic map). Prior 

ffo Aug. 13, 1953, at site 1.3 miles upstream at different datum.

Average discharge. 7 years, 2.70 cfs (1,950 acre-ft per year).

Extremes. Maximum discharge during year, 53 cfs Feb. 28 (gage height, 4.26 ft); no flow 

for several months.

1950-57: Maximum discharge, 4,300 cfs Jan. 15, 1952 (gage height, 6.05 ft, site 

and datum then in use), from rating curve extended above 200 cfs by logarithmic plotting; no flow for several months each year.

Remarks.--Records good. Discharge measurements generally made twice a month.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge. In cubic feet per second)

3.0

3.2

3.3 .5

3.4

3.5

3.6

1.1 

2.3

4.0

3.7

3.8 

4.0

6.7

10

22

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

o

0

0

0

0

0

0

0

0

1.1 o 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.1

0.04

2.2

Feb.

0"0

0

0

0

0

0

.2

.8

.4

3!

2.

1.

1.

1. 12 '

-

29.2

1.04

58

Mar.

~5.6 17

3.8

3.1

2.6

2.2

2.1

1.9

2.4

2.2

1.9

1.7

1.7

1.7

1.5

1.7

1.5

1.5

1.4

^ 2

1.1

1.0

1.0

1.0

1.0

.9

.9

.9

.9

 .S g69.0

2.23

137

Apr.

0.8

.7

.7

.7

.7

.6

.6

.6

.6

.7

.7

.7

.6

.6

.6

.5

1.7

.0

.0

.8

.1

.8

.7

.5

.3

.2

.1

.1

.1

.0

34.8

1.16

69

May

1.0

1.0

1.0

.9

.9

.9

.9

.0

.0

.2

.2

.1

.9

.9

.9

.8

.7

.9

6.4

2.2

.7

.4

.3

.1

.1

1.0

.9

.9

.9

.9

.8

37.8

1.22

75

June

~0.7

.4

.4

.4

.4

.4

.4

.4

.5

.5

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.1

.1

0

0

0

0

0

0

0

7.9

0.26

16

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 230 Mln 0 Mean 2'.27 Ao-ft 1,650

Water year 1956-57: Max 17 Mln 0 Mean 0.49 Ao-ft 357

Peak discharge (base, 100 cfs). Ho peak above base.
SANTA YNEZ RIVER BASIN 161

Cachuma Reservoir near Santa Ynez, Calif.

Location. Lat 34°35'00", long 119°58'40", at Cachuma Dam on Santa Ynez River, on boundary 

of Canada de los Pinos and Lomas de la Puriflcacion Grants, on upstream face near left 

end of dam, 1.5 miles downstream from Cachuma Creek and 6 miles east of Santa Ynez, 

Santa Barbara County.

Drainage area. 417 sq mi.

Records available. November 1952 to September 1957.

Gage. Staff gage. Datum of gage is at mean sea level, datum of 1929 (Bureau of Reclama- 

£lon bench mark).

Extremes.--Maximum contents during year, 38,382 acre-ft May 22 (elevation, 666.06 ft); 

minimum, 30,154 acre-ft Sept. 30 (elevation, 657.37 ft).

1952-57: Maximum contents, 40,936 acre-ft May 27, 1956 (elevation, 668.47 ft); minimum, 8,147 acre-ft Nov. 13, 1953 (elevation, 619.74 ft).

Remarks. Reservoir is formed by earth-fill dam. Storage was begun Nov. 16, 1952. Area 

and capacity ratings for reservoir are based on surveys made in January 1953. Dead 

storage below outlet gate to river (elevation, 600 ft), 3,114 acre-ft, included in 

contents. Capacity below sill of inlet to Tecolote tunnel (elevation, 660 ft), 32,514 

acre-ft; below spillway level (elevation, 720 ft), 125,292 acre-ft; below top of 4 

radial gates (elevation, 750 ft), 204,874 acre-ft. Water is released from outlet to 

Santa Ynez River to satisfy downstream water rights, and from the inlet to Tecolote 

tunnel for use by city of Santa Barbara and nearby communities. Records show contents 

at 8:45 a.m. on first day of each month.

Cooperation.--Reservoir elevations and releases through Tecolote tunnel furnished by 

Bureau of Reclamation.

Month-end elevation and total contents, water year October 1956 to September 1957

Date

Dec . 31 ...............................

Water year 1956-57 ..................

Elevation 

(feet)t

662.29

_

Contents 

(acre-feet)

36 , 589

35,628

34,654

35,393

_

Change 

In contents 

(acre-feet)

_

-961

-365

+739

-1,468

-6,928

Diversion through 

Tecolote Tunnel 

(acre-feet)t

_

670

354

170

189

852

844

5,470

t Elevation at S:45 a.m. on first day of following month.

* Tecolote tunnel diverts water out of Santa Ynez River basin to Irrigated areas and for domestic 

water supply south of Santa Ynez Mountains In Santa Barbara County.
162 SANTA YWEZ RIVER BASIN

Santa Ynez River near Santa Ynez, Calif.

Location. Lat 34°35'30", long 119°59'45", on boundary between Canada de los Pinos and 

Lomas de la Purificacion Grants on right bank, 1.1 miles downstream from Cachuma Dam 

and 5 miles southeast of Santa Ynez, Santa Barbara County.

Drainage area. 422 sq mi.

Records available. December 1928 to September 1931, October 1932 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 525 ft (from topographic map). Prior 

Fo Oct. 1, 1955, at site 2.1 miles downstream at different datum.

Extremes. Maximum daily discharge during year, 235 cfs Sept. 30; no flow for many days.

1928-31, 1932-57: Maximum discharge, 43,700 cfs Mar. 2, 1938 (gage height, 

17.90 ft, site and datum then in use), from rating curve extended above float measurement of 34,100 cfs; no flow at times for some years.

Remarks.--Records good. Discharge measurements or observations of no flow generally made 

twice a month. Plow regulated by Jameson Lake and Gibraltar and Cachuma Reservoirs 

(see p. 155, 156, 161). Water diverted out of basin from Jameson Lake and Gibraltar 

and Cachuma Reservoirs to cities of Montecito and Santa Barbara for municipal supply. 

Some water pumped from wells along river banks for irrigation.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

2.1

2.2

2.3

2.4

.1 

.5

2.2

2.5 

2.7 

2.9 

3.1

3.5 

4.0 

4.5

163

273

41

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

2 7

1 4

\Z

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4.5

0.15

8.9

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1956: Max 38

Jan.

0Q~

0

0

0

0

0

0

0

0

0

1.6

6.6

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

0

0

0

8.2

0.26

16

Feb.

0

cr

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

.8

0

0

0

0

0

-

0.0

0.03

1.6

Mar.

0

0

0

Apr.

o 1.7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

.1

0

0

0

0

0

0

0

0

0

0

0

0

1.8

0.06

3.6

May

0

0

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0Q~

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

51

74

2.3

0

0

0

149

233

233

233

233 

235

1.443.3

48.1

2,860

Mln 0 Mean 2.50 Ac-ft 1,810

Water year 1956-57: Max 235 Min 0 Mean 4.00 Ac-ft 2,890
SANTA YNEZ RIVER BASIN 163

Santa Agueda Creek near Santa Ynez , Calif .

Location. La t 34°35'40", long 120°01<30", in Canada de los Pinos Grant, on left downstream wingwall of highway bridge, 0.8 mile upstream from mouth and 3.5 miles southeast of Santa Ynez, Santa Barbara County.

Drainage area. --55. 9 sq mi.

Records available. January 1941 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 520 ft (from topographic map). Prior 

to Oct. 1, 1955, at datum 1.0 ft higher.

Average discharge . 16 years, 2.19 ofs (1,590 acre-ft per year); median of yearly mean 

discharges, 0.9 cfs (650 acre-ft per year).

Extremes .--Maximum discharge during year, 19 cfs Feb. 28 (gage height, 1.92 ft); minimum 

daily, 0.1 cfs for many days.

1941-57: Maximum discharge, 1,670 cfs Jan. 15, 1952 (gage height, 5.30 ft, present 

datum); no flow at times in 1949-56.

Remarks. Records good. Discharge measurements generally made four times a month. 

Small diversions above station for irrigation.

Revisions. WSP 1395: Drainage area.

Discharge , In cubic feet

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.5

.6

.6

.6

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.5

.5

.4

.3

.2

.2

9.8

0.32

19

Nov.

~0.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

.2

.5

.6

.3

.3

.3

.3

.3

.3

.3

.2

.2

7.5

0.25

15

Dec.

0.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

6.2

0.20

12

Jan.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

72 '.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

6.3

0.20

12

Feb.

0.1

.1

z\

-

5.4

0.19

11

Mar.

2.0

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

7T

.1

.1.1

.1.1

.1

.1

.1

.1

.1

.1

a

.1

.1

.1

.1

.1

.1

.1

5.9

0.19

12

Apr.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.0

0.10

6.0

May

0.1

.1

.1

.1

_.£

.2

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

5.7

0.18

11

June

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

7T

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2 

.2

5.3

0.18

11

July

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.5

.6

.5 

.6

 

8.5

0.27

17

Aug.

1.4

1.3

1.2

.8

.6

.7

.9

1.1

1.1

.9

.7

.6

.5

.5

.5

.6

.6

.6

.5

.5

.5

.4

.4

.3

.3

.3

.3

.3

.3 

.2

.2

19.1

0.62

38

Sept.

0.2

.2

.2

.2

.2

.2

.9

.2

.2

.2

.1

7T

.1

.1

.1

.1

.1

.1

.1

.1

.1.1

.1

.1

.1

.1

.1

.1

.2 

.2

4.2

0.14

8.3

Calendar year 1956: Max 299 Mln 0 Mean 1.43 Ac-ft 1,040

Water year 1956-57: Max 2.5 Mln 0.1 Mean 0.24 Ac-ft 172

Peak discharge (base, 50 cfs).--No peak above base.

510529 O - 59 - 12
164 SANTA YNEZ RIVER BASIN

Zanja Cota near Santa Yhez, Calif.

Location. Lat 34°35'13", long 120°05'40", in Canada de los Pinos Grant (on boundary), 

on right bank 300 ft upstream from Mitchell Ranch road, 0.4 mile upstream from mouth, 

and 2.0 miles southwest of Santa Ynez, Santa Barbara County.

Drainage area. 13.4 sq mi.

Records available. October 1954 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 470 ft (from topographic map).

Extremes. Maximum discharge during year, 40 cfs Oct. 10 (gage height, 2.95 ft); no flow 

for many days.

1954-57: Maximum discharge, 53 cfs Jan. 26, 1956 (gage height, 4.02 ft); no flow 

at times in 1956-57.

Remarks. Records good except that for Jan. 13, which is poor. Discharge measurements 

generally made at least once a week. Several diversions above station.

Rating table, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Apr. 2-6, 13-16, June 4-19, 24-29, 

July 3-9, 11-15, July 19 to Sept. 3)

0.0 

.1 

.2 

.3

0.4 

.6

1.2

1.0 

1.9 

3.8 

6.2

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

~T2~ 0.1

.1

.2

1.0

1.0

1.0

1.0

2.4

1.4

1.3

1.1

1.1

1.1

1.2

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.2

1.1

1.2

1.4

31.6

1.02

63

Nov.

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.1

1.0

1.2

1.2

1.3

1.2

1.3

1.4

1.2

1.4

1.2

2.5

2.2

1.8

2.2

1.8

1.8

1.7

1.8

l.S

2.0

1.5

44.1

1.47

87

Dec.

1.4

1.3

1.2

TT?

1.2

1.2

1.3

2.1

2.2

2.2

1.9

2.0

2.2

2.1

3.4

3TC

1.6

1.5

1.4

1.5

1.5

1.4

1.5

1.4

1.4

1.4

1.4

1.5

1 . B

2.0

52.4

1.69

104

Calendar year 1956: Max 46

Jan.

2.1 2T2~

2^3

2.3

2.6

2.4

2.5

2.6

2.6

2.6

4.9

a5. 5

2.°7

2.6

2.6

2.7

2.7

3.3

2.9

2.9

2.9

3.0

3.0

3.0

2.9

2.9

2.9

2.8

2 8

88.5

2.85

176

Feb.

2.7

2.7

2.6

2.5

2.4

2.4

3.1

2.9

2.7

2.7

2.7

2.6

2.6

2.5

2.5

2.5

2.5

2.4

2.4

2.4

2.5

T78~ 5.0

2.6

2.6

2.7

4.2

-

76.6

2.74

152

Min 0

Mar.

2.9

TTT

2.7

2.8

2.7

2.6 2 5

2)5

2.7

2.5

2.5

2.6

2.7

2.6

2.4

2.5

2.6

2.6

2.6

2.6

2.5

2.5

2.4

2.4

2.3

2.4

2.5

2.4

2.4

1.2

iii

76.4

2.46

152

Apr.

1.3

.7

.3

0

.1

.5 

 8

1.1

1.6

.9

1.0

1.1

.5

.1

.2

.5

1.9

2.9

2 .2

2.2

2.1

2.0

1.8

1.8

2.1

1.8

1.5

1.6

1.4

1.4

37.4

1.25

74

May

1.7

2.0

T77

1.6

1.8

1.6 

1.7

1.9

1.8

1.8

1.2

1.2

1.0

OJ

1.0

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.3

1.2

1.2

1.1

1.0

1.0

1.0

1.2

1.2

41.3

1.33

82

June

1.1

ITT 1.1

.4

0

.1 

.2

.1

.1

0

.1

.2

.7

1.0

1.0

1.0

1.0

1.0

.9

.9

.9 l.'O

1.0

.9

.1

0

.1

.1

.3

.9

17.3

0.58

34

July

0.9

 

1.1Ts"

0

S

0 

0

0

0

.7

.7

.1

0

0

.1

.6

.7

.7

.4

.1

.1

.1

.1

.1

.1

0

.1

0

.1

.1

.1

7.5

0.24

15

Aug.

0.1

0

^5

0

.1

0 

0

0

.3

TT

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.0

0.03

2.0

Sept.

~.l 0

.1.1

0

0 

0

.1

.2

0

0

.1

.2

.1

.2

.6

.7

.7

.7

.7

.7

.7

.7

.7

.8

.8

.8

Te~ .9

. 8

12.3

0.41

24

Mean 1.73 Ac-ft 1.250

Water year 1956-57: Max 5.5 Min 0 Mean 1.33 Ac-ft 965

a No gage-height record; discharge computed from reconstructed gage-height graph based on highwater mark and normal recession.
SANTA YNEZ RIVKR BASIN 165

Santa Ynez River at Grand Avenue, near Santa Ynez, Calif.

Location. Lat 34 0 35'05", long 120°06'00", in Canada de los Pinos Grant (on boundary), 

on downstream side of left abutment of bridge, 0.2 mile below Zanja Cota and 2£ miles 

southwest of Santa Ynez, Santa Barbara County.

Drainage area. 513 sq mi.

Records available. October 1954 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 450 ft (from topographic map)

Extremes. Maximum discharge during year, 207 cfs Sept. 30 (gage height, 3.27 ft); no 

flow July 21 to Sept. 25.

1954-57: Maximum discharge, 820 cfs Jan. 27, 1956 (gage height, 4.00 ft); no 

flow at times in most years.

Remarks. Records good. Discharge measurements or observations of no flow generally 

made once a week. Flow regulated by Jameson Lake, and Gibraltar and Cachuma Reservoirs (see p. 155. 156, 161). Water diverted out of basin from Jameson Lake, and 

Gibraltar and Cachuma Reservoirs to cities of Montecito, Santa Barbara, and Goleta 

for municipal supply. Some water pumped from wells along banks of river for irrigation in valley upstream.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6 

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

~75 0.6

.6

.6

.8

1.2 

1.6 

1.4

1.4

3.3

2.2

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.6

1.4

1.6

1.5

1.5

1.5

1.6

1.4

1.7

1.2

2.2

2.1

2.1

47.9

1.55

95

Nov.

2.2

1.9

2.4

4.2

ITT

2.8 

1.9 

1.1

172

1.4

1.6

1.8

2.2

2.0

2.1

2.8

2.3

2.3

2.2

2.9

2.8

2.8

2.8

2.3

2.1

1.9

1.9

1.9

2.5

2.3

67.7

2.26

134

Dec.

2.5

2.8

2.8

2.5

2.0

1^6 

1.9

2.2

2.2

2.1

2.6

2.4

1.8

2.1

2.2

2.3

2.3

2.3

2.4

2.5

2.3

2.3

2.5

2.8

2.2

2.6

2.2

3.0

3.3

3.1

73.9

2.38

147

Calendar year 1956: Max 277

Jan.

3.S

"371 2.7

3.1

3.0

3.6 

3.6

3.1

3.1

3.2

5.3

7.0

4.4

4.2

3.9

3.8

3.1

2,8

2.8

3.1

3.8

3.4

3.8

3.6

3.6

3.6

3.6

3.6

3.6

5.7

112.4

3.63

223

Feb.

3.6

3.6

.8

.8

.8

.4 

.2

.2

.0

.O

.0

.0

.8

.8

.0

.0

.O

.0

.0

.0

.0

.1

.9

.2

.O

.0

.4

-

117.0

4.18

232

Mar.

4.6

4.6

4.4

4.6

4.4

4.6 

4.2

4.4

4.2

4.0

4.4

4.2

3.8

3.8

3.6

3.6

3.6

4.0

4.2

3.6

3.6

3.0

3.0

3.1

3.6

4.2

4.2

4.0

2.8 :u6

120.5

3.89

239

Apr.

3.1

2.7

1.8

.8

.7

1.8 

1.9

2.2

1.4

.9

1.8

1.8

.6

.8

.5

27T

4.6

ITT

2.8

3.1

3.4

3.4

3.4

3.4

3.4 3'.1

3.0

2.5

2.8

68.8

2.29

136

May

2^8

2.8

2.5

2.3

2.8

2.5 

2.3 

2.8

2.5

2.8

2.3

2.2

1.7

1.7

1.9

1.9

1.9

1.9

2.3

1.8

1.9

1.8

2.1

2.1

2.3

1.8

2.0

2.5

2.2

2.5

1 .8

68.7

2.22

136

June

1.9

T79

1.9

1,5

.9

i!i

.8

.7

.7

.8

.8

.8

.8

1.3

1.'3

1.4

1.5

1.3

.9

.9

1.1

1.1

1.0

.5

.3

.3

.3

.3

.4

29.3

0.98

58

July

0.4

.4

.7

75

.5

.3 

.4

.4

.5

.5

.6

.6

.6

.3

.3

.3

.2

.2

.1

.1

0

0

0

0

0

0

o

0

0

0

o

7.9

0.25

16

Aug.

0

0

0

Sept.

0

0

0

0

0

0

0 

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

26

118

155

185

204

688

22.9

1,360

Mln 0.3 Mean 5.50 Ac-ft 4.0OO

Water year 1956-57: Max 2O4 Mln o Mean 3.84 Ac-ft 2,780
166 SANTA YNEZ RIVER BASIN

Santa Ynez River at Solvang, Calif.

Location. Lat 34°35'05", long 120°08'35", in San Carlos de Jonata Grant, on downstream 

side of right abutment of Mission Bridge, 25 ft downstream from Alisal Creek and 

0.9 mile south of Solvang, Santa Barbara County.

Drainage area.--579 sq mi.

Records available. October 1928 to November 1936, June 1937 to November 1940 (irrigation seasons only) , October 1946 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 350 ft (from topographic map). Various 

aatums used during period of record. July 29 to Sept. 30, 1953, auxiliary water-stage 

recorder 750 ft upstream at different datum. Oct. 1, 1953, to Jan. 26, 1955, waterstage recorder on center bridge pier at same datum.

Extremes.--Maximum discharge during year, 271 cfs Feb. 23 (gage height, 4.53 ft); no 

flow Oct. 1 to Dec. 1, June 26 to Sept. 26.

1928-36, 1946-57: Maximum discharge, 37,000 cfs Jan. 15, 1952 (gage height, 

14.80 ft, datum then in use), from rating curve extended above 10,000 cfs by logarithmic plotting; no flow for several months in 1948-57.

Remarks. Records good. Discharge measurements or observations of no flow generally 

made three or more times a month. Plow regulated by Jameson Lake, and Gibraltar and 

Cachuma Reservoirs (see p. 155, 156, 161). Water diverted out of basin from Jameson 

Lake, and Gibraltar and Cachuma Reservoirs to cities of Montecito, Santa Barbara, and 

Goleta for municipal supply. Some water pumped from wells along banks of river for 

irrigation in valley upstream.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

.5

.6

.9

1.5

1.8

3.2

2.1

1.7

2.2

2.5

2.6

2.5

2.6

2.5

2.9

2.6

2.8

2.4

4.2

2.8

2.6

2.9

2.8

3.2

4.1

3.2

2.4

2.8

3.8

3.1

75.8

2.45

150

Calendar year 1956: Max 708

Jan.

2.8

 z7£ 2.1

2.3

2.9

3.1

3.4

3.6

3.6

4.6

5.7

23

46

4.5

7.0

5.2

4.6

5.0

4.6

5.6

4.8

4.6

5.0

5.2

5.2

5.2

5.0

4.8

4.8

4 . 6

4.5

195.4

6.30

388

Feb.

4.3

4.3

4.2

4.0

4.2

4.9

4.0

4.8

5.2

5.4

4.9

5.1

5.4

5.4

5.4

5.2

5.2

5.2

5.0

5.0

5.8

6.2

90

23

14

14

14

37

-

301.1

10.8

597

Mar.

30

21

17

14

13

13

11

10

11

11

10

9.6

9.6

9.1

8.3

8.5

8.5

8.8

8.3

7.7

7.4

7.4

7.2

7.0

7.3

6.0

5.4

5.4

5.4

5.0

4.5

307.4

9.92

610

Apr.

4.0

3.7

3.1

2.8

2.2

2.2

2.6

2.9

2.9

3.0

2.4

2.1

2.1

2.3

1.8

1.9

7.7

18

11

10

9.4

8.0

7.0

6.8

6.6

6.2

5.6

5.4

4.8

4.6

153.1

5.10

304

May

4.5

4.5

4.5

4.5

4.9

4.2

4.3

4.2

4.0

3.8

4.6

4.3

3.8

3.4

2.9

2.8

2.4

2.6

3.7

3.3

3.6

3.1

3.0

2.9

2.9

3.2

2.6

2.4

2.5

2.4

2.2

108.0

3.48

214

June

2.1

2.0

.8

.6

.2

.1

.0

.0

1.5

1.3

.4

.8

.8

.6

.6

1.0

.8

.2

0

0

0

.6

.6

.4

.1

0

0

0

0 

0

21.5

0.72

43

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

53

128

163

526

17.5

1,040

Min 0 Mean 10.8 Ac-ft 7,840

Water year 1956-57: Max 182 Min 0 Mean 4.63 Ac-ft 3,350
SANTA YNEZ RIVER BASIN 167

Santa Ynez River at Buellton, Calif.

Location.--Lat 34°36'25", long 120°11'45", in Nojoqui Grant (near boundary), at midstream pier of old highway bridge, .75 ft downstream from Nojoqui Creek, 0.1 mile downstream from U. S. Highway 101, and 0.5 mile south of Buellton, Santa Barbara County.

Drainage area. 594 sq mi.

Records available. October 1954 to September 1957.

gage. Water-stage recorder. Altitude of gage is 330 ft (from topographic map). Prior 

to Oct. 1, 1955, at datum 2 ft higher.

Extremes.--Maximum discharge during year, 214 cfs Feb. 23 (gage height, 3.07 ft); no 

flow for several months.

1954-57: Maximum discharge, 4,400 cfs, Dec. 25, 1955 (gage height, 5.2 ft, estimated) , from rating curve extended above 1,800 cfs by logarithmic plotting; maximum 

gage height, 6.34 ft Dec. 25, 1955 (backwater from construction); no flow for several 

months each year.

Remarks. Records good. Discharge measurements or observations of no flow generally made 

three or more times a month. Flow regulated by Jameson Lake, and Gibraltar and 

Caohuma Reservoirs (see p. 155, 156, 161). Water diverted out of basin from Jameson 

Lake, and Gibraltar and Cachuma Reservoirs to cities of Montecito, Santa Barbara, 

and Goleta for municipal supply. Some water for irrigation pumped from wells along 

banks of river in valley upstream.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

31

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

o

0

0

0 

0

0

0

0

0

0

0

0

.1.1

.1

.1 

.1

.2

.2 

.2

.3

.4

.4

.4

j£

.5

.5

.5

.5

.4

5.5

0.18

11

Dec.

0.4

.4

.4

i

.4

.4

.4

.5

.5

.6

.6

.6

.6

.6

.6 

.7

.7

.7 

.7

.7

.7

.8

.8

.8

4.9

.8

.8

.7

.7

19.0

0.61

38

Jan.

0.7

.7

.6

[7

.6

.6

.7

.7

.7

.8

3.4

22.

1.2

1.2

1.1 

1.1

1.1

1.1 

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.2

56.4

1.82

112

Feb.

1..2

172

1.2

1.4 

1.2

1.2

1.2

1.2

1.4

1.4

1.2

1.4

1.5

1.5

1.5

1.6 

1.6

1.6

1.6 

1.6

2.2

3.0

85

24

12

9.0

8.0

27

198.1

7.08

393

Calendar year 1956: Max 1,120 Mln o

Mar.

37.

21

19

14

11

10

9.5

9.5

11

9.5

9.0

8.5

8.5

7.6

7.6 

7.6

8.0

8.0 

6.8

5.7

5.7

4.3

3.5

2.8

3.0

3.2

3.0

2.8

3.0

2^6

289.7

9.35

575

Apr.

2.6

2.8

2.4

1.8 

1.5

1.4

1.4

1.5

1.5

1.6

1.4

.9

.9

1.0

.9

IT!

3.5

T5

1.6

1.6

1.5

1.5

1.6

2.0

1.4

1.1

1.0

1.1

1.0

46.0

1.53

91

Mean 13 . i

May

1.2

1.1

1.0

.7 

.5

.3

.2

.1

TT

.1

.2

.2

.4

.6

.7

.7 

.7

1.1

LJL 

1.2

1.4

1.2

1.0

.8

.7

.5

.4

.2

.2

.1

.1

19.1

0.62

38

June

0.1

.1

.2

'.I

.1

.1

.1

.1

.1

.1

.1

.1

.1

£

.1

.1

0

0 

0

0

0

0

0

0

0

0

0

0

0

1.8

0.06

3.6

July

0

0

0

Aug.

0

0

0

Sept.

5-0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0 

0

0

0

0

0

0

0

0

0

48

117

165

5.50

327

Ac-ft g.530

Water year 1956-57: Max 117 Mln o Mean 2.19 Ac-ft 1^590
168 SANTA YNEZ RIVER BASIN

La Zaca Creek at Buellton, Calif.

Location. Lat 34°36'50", long 120°11'30", in San Carlos de Jonata Grant, on right bank 

at culvert on State Highway 150 in Buellton, Santa Barbara County, 1 mile upstream 

from mouth.

Drainage area. 39.5 sq mi.

Records available . January 1941 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 340 ft (from topographic map).

Average discharge. 16 years, 0.24 cfs (174 acre-ft per year); median of yearly mean discharges, 0.03 cfs (22 acre-ft per year).

Extremes. Maximum discharge during year, 8.3 cfs May 11 (gage height, 3.45 ft); no 

flow most of the time.

1941-57: Maximum discharge, 874 cfs Mar. 3, 1941, from rating curve extended 

above 300 cfs on basis of velocity-area study; maximum gage height, 6.80 ft Mar. 4, 

1941; no flow for most of each year.

Remarks. Records fair. Discharge measurements or observations of no flow generally 

made twice a month. Waste water from large cafe nearby not included in these records 

when there is no natural flow.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ao-ft

Oct. 

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1956 : Max 18

Jan.

0

0

0

0

0

0

0

0

0

0

0

0~.3

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0 

0

0.4

0.01

0.8

Feb.

£

O

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0o-

.1

0.5

0.02

1.0

Mln 0

Mar.

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

.1

. 1

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.007

0.4

Mean 0.10

May

0

0

0

0

0

0

0

o

0

0

.4

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0.4

0.01

0.8

June

0

0

0

July

0

0

o

Aug.

0

0

0

Sept.

0

0

0

Ac-ft 73

Water year 1956-57 J Max 0.4 Mln 0 Mean 0.004 Ac-ft 3.0

Peak discharge (base, 10 efs). Mo peak above base.
SANTA YNEZ RIVER BASIN 169

Santa Ynez River near Buellton, Calif.

Location. Lat 34°36'50 TI ) long 120°14'30", in Santa Rosa Grant, on left bank 0.5 mile 

downstream from Canada de los Palos Blancos and 3 miles west of Buellton, Santa 

Barbara County.

Drainage area. 668 sq mi.

Records available.--June 1948 to September 1952 (irrigation seasons only), October 1952 

to September 1957.

Prior

to

Gage.--Water-stage recorder. Altitude of gage is 250 ft (from topographic map). 

To Apr. 25, 1950, at site 200 ft downstream at different datum. Apr. 25, 1950, 

Sept. 22, 1957, at datum 2 ft higher.

Extremes. Maximum discharge during year, 128 cfs Feb. 23 (gage height, 3.09 ft); no 

flow for many days.

1952-57; Maximum discharge not determined, occurred Dec. 25, 1955 (gage height, 

6.26 ft, from floodmarks); no flow for many days each year.

Remarks. Records good. Discharge measurements or observation of no flow generally 

made once a week. Flow regulated by Jameson Lake, and Gibraltar and Cachuma Reservoirs (see p. 155. 156, 161). Water diverted out of basin from Jameson Lake, and 

Gibraltar and Cachuma Reservoirs to cities of Montecito, Santa Barbara, and Goleta 

for municipal supply. Pumping from wells along river for irrigation also affects 

surface flow at this station.

Rating table, water year 1956-57 (gage height, in feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Feb. 23, 24, Apr. 4-5, June 8-18)

0.8

.9

1.0

1.2

1.0 

1.8 

2.8

5.9

1.4 

1.6 

1.9 

2.2

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

.1

.1

.1

.1

.2

.2

.2

^_

9.9

0.32

20

Nov.

0.5

Ts

.5

.5

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

21.0

0.70

42

Dec.

0.8

.8

.9

1.0

1.0

.2

.2

.2

.2

.2

.2

.3

.3

.4

.4

.4

.4

.5

.5

.5

1.5

1.5

1.6

T76

1.6

1.6

.6

.6

.6

.5

.5

41.6

1.34

83

Jan.

1.4

1.5

1.5

1.4

1.4

1.2

TTz

1.2

1.2

1.2

1.2

1.8

11

3.4

2.4

2.4

2.4

2.4

2.4

3.0

2.7

2.6

2.6

2.8

2.8

2.9

2.9

3.4

3.8

3.4

3.4

78.9

2.55

156

Feb.

3.4

3.3

.6

.8

.8

.8

.9

.2

.0

.5

.4

.4

.5

.8

.8

.8

.8

.8

.8

.6

4.8

5.5

53

30

18

14

12

18

-

-------

242.3

8.65

481

Mar.

37

28

21

18

17

16

14

13

14

14

13

12

13

12

11

11

11

11

11

11

9.9

8.8

8.6

8.5

7.9

7.0

6.1

5.7

5.1

4.5

4. _4

384.7

12.4

763

Apr.

4.2

4.0

3.4

3.0

2.4

2.2

2.2

2.2

2.0

1.8

1.5

1.4

1.4

1.3

1.2

1.1

1.4

1.3

1.0

ITT

1.2

1.2

1.2

1.4

1.4

1.3

1.4

1.4

1.6

1.6

53.8

1.79

107

May

.7

.7

.5

.4

.3

.3

.2

.2

.2

.0

.0

.0

.0

.9

.9

.8

.8

.8

.2

.2

.4

.4

.4

.2

.2

1.2

1.1

.8

.6

.6

jj;

34.4

1.11

68

June

0.4

.5

.7

.8

.8

.9

.8

.8

.8

.6

.3

.2

0

0

0

.1

.1

0

0

0

0

0

0

0

0

0

o

0

0

0

7.8

0.26

15

July

0

0

0

Aug.

0

0

0

Sept.

O

0

0

Calendar year 1956: Max 1,100 Mln 0 Mean 14.1 Ac-ft 10,240

Water year 1956-57: Max 53 Mln o Mean 2.40 Ac-ft 1,730
170 SANTA YNEZ RIVER BASIN

Santa Ynez River at Santa Rosa dam site, near Buellton, Calif.

Location. Lat 34°36'35", long 120 0 18'15", in Santa Rosa Grant, on left bank 1 mile downstream from Santa Rosa Creek and 65 miles west of Buellton, Santa Barbara County.

Drainage area.--748 sq mi.

Records available. October 1954 to September 1957.

gage. Water-stage recorder. Altitude of gage is 200 ft (from topographic map).

Extremes. Maximum discharge during year, 88 cfs Feb. 23 (gage height, 1.75 ft); no flow 

for several months.

1954-57: Maximum discharge not determined, occurred Dec. 25, 1955 (gage height, 

6.84 ft); no flow for several months each year.

Remarks. Records good. Discharge measurements generally made three times a week during 

periods of flow. Plow regulated by Jameson Lake, and Gilbraltar and Cachuma Reservoirs (see p. 155, 156, 161 ). water diverted out of basin from Jameson Lake, and 

Gilbraltar and Cachuma Reservoirs to cities of Montecito, Santa Barbara, and Goleta 

for municipal supply. Some water for irrigation pumped from wells along banks of 

river in valley upstream.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

.7

.2

.9 

2.6

.9

1.1 

1.4

5.7

10

22

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

O

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

O

0

0

0

0

0

.1

.2

.2

.2

.2

.1

.1

.1

.2

1.8

2.9

3.4

3.4

3.4

3.7

36

43

26

17

15

16

-

173.0

6.18

343

Mar.

31

25

21

20

16

13

14

14

16

14

14

14

13

12

12

13

12

12

13

11

11

10

9.0

8.2

7.7

7.3

7.3

6.5

6.5

6.1

5.7

395.3

12.8

784

Apr.

4.9

4.9

4.6

4.0

3.1

3.4

3.1

2.6

2.2

2.2

2.2

1.4

1.0

1.0

.9

.9

1.8

2.6

1.8

1.8

2.0

1.8

1.4

1.4

1.3

.9

.8

.7

.7

.7

62.1

2.07

123

May

0.6

.6

.5

.6

.6

.6

.4

.5

.4

.4

.5

.6

.5

.4

.4

.4

.3

.4

.8

.7

.8

.8

.7

.5

.5

.4

.4

.2

.4

.4

.4

15.7

0.51

31

June

~T2 0.3

.2

.1

.1

.1

.1

0

O

0

0

0

0

0

0

0

O

0

0

0

0

0

0

O

0

0

0

0

0

0

1.1

0.04

2.2

July

0

0

0

Aug.

0

0

O

Sept.

0

0

O

Calendar year 1956: Max 633 Hln 0 Mean 13.8 Ac-ft 1O.O50

Water year 1956-57: Max 43 Mln 0 Mean 1.77 Ac-ft 1,280
SANTA YNEZ RIVER BASIN 171

Santa Ynez River at Cooper's Reef, near Lompoc, Calif.

Location. Lat 34°36'48", long 120°2l'20", near boundary of Canada de Salsipuedes Grant, 

on right bank 0.6 mile upstream from Canada de la Vina and 6 miles east of Lompoc, 

Santa Barbara County.

Drainage area. 755 sq mi.

Records available . October 1954 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 200 ft (from topographic map).

Extremes. Maximum discharge during year, 32 cfs Mar. 1 (gage height, 2.16 ft); minimum 

daily, 0.1 cfs Sept. 2-17.

1954-57: Maximum gage height, 7.38 ft Dec. 25, 1955 (discharge not determined); 

minimum daily discharge, that of Sept. 2-17, 1957.

Remarks. Records good. Discharge measurements generally made one or more times a week. 

Plow regulated by Jameson Lakeland Gibraltar and Cachuma Reservoirs (see p. 155, 156, 

161). Water diverted out of basin from Jameson Lake, and Gibraltar and Cachuma 

Reservoirs to cities of Montecito, Santa Barbara, and Goleta for municipal supply. 

Some water pumped from wells along banks of river for irrigation in valley upstream.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

1.4

1.5

1.6

1.7

0.1

.5

1.4

3.2

1.8

1.9

2.0 

2.2

Discharge, in cubic feet per second, water year October 1956 to September 19S7

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Ae-rt

Oct.

 

0.3

.3

,3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

71

,4

.4

.4

.4

.4

.3

.3 

.3

.3

.3

.3

.3

.3

.4

.4

.4

10.3

0.33

20

Nov.

0.4

.4

.4

.4

.3

.4

.3

.3

.3

Jl

.3

.3

.3

.4

.4

.4

.4

.3

.4

.4

.4

.3 

.3

.3

.3

.3

.3

.3

.2

.2

9.9

0.33

HO

Dec.

"72 0.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

<3

.3

.3

.3

.3

.3

7!

.4

.4

.4

,4

.4

.4

.4

.4

9.3

0.30

18

Calendar year 1956i' Max 534 

Water year l§B6^57i Max 27

Jan.

0^4

.4

.4

.4

,4

.4

,4

.4

,4

.4

,6

76

.5

.4

.4

.4

.4

.4

.6

.5

.4 

.4

.4

.5

.5

.4

.4

.4

.4

.4

13.4

0.43

27

Feb.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

,5 

.8

18

14

8.7

8.2

11

-

69.6

2.49

138

Mar.

24

27

25

17

15

13

13

14

15

14

13

12

12

12

13

14

12

12

13

12

11

3.7 

3.2

8.2

7.8

6.2

5.3

4.5

3.9

368.9

11.9

732

Apr.

3.7

2 f g

2!o

1.3

1.0

1.1

1.4

1.7

.9

.7

.7

,7

,7

.7

.7

.8

.9

.9

.7

.7

.7

If

.6

.6

.6

.6

.8

.6

.6

30.0

1.00

60

May

OjTG~g

.6

.6

.6

.6

.5

.6

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6 

.6

.6

.6

.6

.6

.6

.6

'?

18.3

0.59

36

June

"75 0.5

.5

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4 

.4

.4

.4

.4

.4

.4

.4

.4

12.4

0.41

25

July

0.4

t 4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4 

.4

.4

.4

.4

.375

.3

.3

.3

11.9

0.38

24

Aug.

0.3

.3

.3

.3

jA

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.3

.3 

.3

.3

.2

.2

.2

.2

.2

.2

.2

9.2

0.30

18

Sept.

0.2jy

7f

.1

.1

.1

.1

.1

a

.1

.1

.1

.1

.1

.1

,1

.1

.2

.2

.2

.2

.2 

.2

.2

.2

.2

.2

.2

.2

.2

4.4

0.15

8.7

Min 0,2 Mean 14.1 Ac-ft 10,240 

Min o.l Mean 1.56 Ae-ft 1,130
172 SANTA YNEZ RIVER BASIN

Santa Ynez River below Santa Rita Creek, near Lompoc, Calif.

Location. Lat 34°38'00", long 120°23'30", on boundary of Santa Rita Grant, on right bank 

at white shale outcrop, half a mile downstream from Santa Rita Creek and 3-f miles east 

of Lompoc, Santa Barbara County.

Drainage area. 781 sq mi.

Records available. October 1954 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 150 ft (from topographic map).

Extremes. Maximum discharge during year, 32 cfs Mar. 2 (gage height, 2.95 ft); no flow 

for many days.

1954-57: Maximum gage height, 10.66 ft Dec. 25, 1955 (discharge not determined); 

no flow at times in 1957.

Remarks. Records good except those for periods of no gage-height record and those for 

period of indefinite stage-discharge relation, which are fair. Discharge measurements generally made once a week or more often at times. Plow regulated by Jameson 

Lake, and Gibraltar and Cachuma Reservoirs (see p. 155, 156, 161). Water diverted 

out of basin from Jameson Lake, and Gibraltar and Cachuma Reservoirs to cities of 

Montecito, Santa Barbara, and Goleta for municipal supply. Some water pumped froin 

wells along banks of river for irrigation in valley upstream.

Rating table, water year 1956-57, except period of Indefinite stage-discharge relation (gage

height. In feet, and discharge, in cubic feet per second) 

(Shifting-control method used Mar. 6-7, 18, May 28-31, June 11-26, July 9-17, Aug. 17-21)

1.50

1.6

1.7

1.8

1.9

2.0 

2.2

1.6 

2.5

5.5

2.4 

2.7 

3.0

.9

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

16

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.2 

.2

.2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

6.2

0.20

12

Nov.

0.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

6.2

0.21

12

Dec.

0.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

6.2

0.20

12

Calendar year 1956: Max 728

Jan.

0.2 

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.4

.5

.3

.3

.2

.2

.2

.2

.4

.3

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

8.1

0.26

16

Feb.

~0.3 

.3

.3

.3

.3

.3

.5

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.5

1.1

.6

5.3

5.7

3.7

7.1

-

30.7

1.10

61

Mar.

15 

30

24

20

14

10

12

14

14

14

12

12

12

12

12

13

12

11

12

12

10

9.4

8.4

8.4

8.6

7.7

6.2

5.9

5.7

4.2

3.2

364.9

11.8

724

Apr.

3.1

lil 2.5

1.9

1.4

1.2

1.0

.9

.9

.9

.8

.8

.7

.7

.6

.6

1.0

1.2

.8

.8

.6

.6

.5

.4

.4

.4

.4

.3

.3 

.3

29.2

0.97

58

May

0.3 

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

o_

0

0

0

0

0

0

0

.1

.1 

.1.1

3.7

0.12

7.3

June

0.1 

0

0

0

0

0

0

0

.1.1

.1.1

.1

.1

.1

.1

.1.1.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

2.3

0.08

4.6

July

0.1

!l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0 

0

0

2.7

0.09

5.4

Aug.

0 

0

0

.1

7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

a.l 

a.l

a.l

2.4

0.08

4.6

Sept.

aO.l 

a.l

a.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

1.3

0.04

2.6

Mln 0.2 Mean 15.6 Ao-ft 11,330

Water year 1956-57: Max 30 Mln 0 Mean 1.27 Ac-ft 920

a No gage-height record; discharge estimated on basis of recorded range In stage and weather 

records.

Note. Stage-discharge relation Indefinite Sept. 4-30; discharge estimated on basis of 3 discharge measurements and recorder graph.
SANTA YNEZ RIVER BASIN 173

Salsipuedes Creek near Lompoc, Calif.

Location. Lat 34°35'20", long 120°24'25", in Canada de Salsipuedes Grant, on right bank 

at highway bridge on Jalama Road, 0.3 mile downstream from El Jaro Creek and 4.5 miles 

southeast of Lompoc, Santa Barbara County.

Drainage area. 47.0 sq mi.

Records available. January 1941 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 230 ft (from topographic map).

Average discharge. 16 years, 6.97 cfs (5,050 acre-ft per year); median of yearly mean 

discharges, 2.8 cfs (2,000 acre-ft per year).

Extremes. Maximum discharge during year, 787 cfs Feb. 23 (gage height, 3.62 ft); minimum daily, 0.1 cfs June 23-28, July 2 to Sept. 30.

1941-57; Maximum discharge, 11,400 cfs Mar. 15, 1952 (gage height, 20.8 ft), from 

rating curve extended above 2,200 cfs on basis of slope-area determination of peak flow; 

no flow Sept. 19, 1955.

Remarks.--Records good. Discharge measurements generally made three or more times a 

month. Small diversions for irrigation above station.

Revisions.--WSP 1395: Drainage area.

Rating table, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second)

(Shifting-control method used July 16-24, Aug. 5-8, 19-21, 

Aug. 26 to Sept. 11, Sept. 21-30)

1.05

1.1

1.2

0.1 1.3

1.4

1.5

4.9 1.7 

2.0 

2.5

33

67

J. . £ -L . O J. . iJ J.D £.U 160 ± OW

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

20

2122

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.3

.3

.3

.3

.3

.3

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.3

.3

.3

.3

.4

.4

.4

.4

.5

.5

12.7

0.41

25

Nov.

0.4

.6

~51.3

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.8

.8

.8

1.0

1.0

1.0

.7

.7

.8

.8

1.0

1.0

22.3

0.74

44

Dec.

1.0

1.0

1.0

1.2

al.2

al.2

al.O

al.O

al.O

al.O

al.O

1.0

.8

78

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.2

1.2

1.2

31.8

1.03

63

Jan.

1.2

1.2

1.2

1.2

4.2

2.5

1.9

1.6

1.4

1.2

1.2

9.1

18

2.8

1.9

1.9

1.6

1.4

1.4

3.1

3.1

2.2

1.9

2.2

2.5

6.4

3.1

5.7

14

3.1

106.7

3.44

212

Feb.

1.9

1.9

1.9

1.9

1.9

1.9

1.9

4.5

5.5

3.5

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.5

2.2

2.2

2.2

1.9

114

7.8

4.4

3.8

3.1

38

-

228.5

8.16

453

Mar.

11

5.3

4.1

3.8

3.5

3.1

2.8

2.8

3.8

3.8

2.8

2.5

2.5

2.2

2.2

2.5

2.5

2.2

2.5

2.5

2.2

1.9

1.6

1.6

1.9

1.6

1.6

1.6

1.6

1.6

1.6

87.2

2.81

173

Apr.

.6

.4

.4

.6

.6

.6

.4

.2

.2

.4

.2

.2

.4

.6

.6

.6

.2

.2

TI

.5

.8

.8

.5

.5

.5

.5

.2

.9

.9

.9

68.2

2.27

135

May

1.9

1.9

1.6

1.6

1.6

1.6

1.6

1.6

1.9

1.9

2.2

2.2

1.6

1.6

1.4

1.2

1.2

1.6

i±i

2.2

1.9

1.4

1.2

1.2

1.2

1.0

1.0

1.0

1.2

1.2

1.0

49.8

1.61

99

June

0.8

.7

.7

.6

.6

.6

.5

.5

.5

.7

.7

.7

.6

.6

.5

.4

.3

.2

.2

.2

.2

.2

.1

TT

.1

.1

.1

.1

.2

.2

12.0

0.40

24

^luly

0.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

a.l

a.l

a.l

a.l

a.l

a.l

3.2

0.10

6.3

Aug.

aO.l

a.l

a.l

a.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.1

0.10

6.3

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.0

0.10

6.0

Calendar year 1956: Max 1,550 Min 0.2 Mean 13.0 Ac-ft 9,430

Water year 1956-57: Max 114 Mln 0.1 Mean 1.72 Ac-ft 1,250

Peak discharge (base. 100 cf8).--Peb. 25 (4 a.m.) 787 cfs (5.62 ft). 

a No gage-height record; discharge Interpolated.
174 SANTA WEZ RIVER BASIN

Santa Ynez River at narrows, near Lompoc, Calif.

Location. Lat 34C 38'15", long 120°25'30", in Canada de Salsipuedes Grant, on left bank 

0.5 mile upstream from State Highway 150, 1.9 miles east of Lompoc, Santa Barbara 

County, and 2.0 miles downstream from Salsipuedes Creek.

Drainage area. 790 sq mi.

Records available.--April 1947 to September 1952 (irrigation seasons only); October 1952 

to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 90 ft (from topographic map). Prior to 

mar. 23, 1953, at site 200 ft upstream at different datum.

Extremes.--Maximum discharge during year, 267 cfs Feb. 23 (gage height, 3.96 ft); no flow 

Oct. 28 to Nov. 3, Nov. 21 to Jan. 12, July 9 to Sept. 30.

1952-57: Maximum discharge, about 6,100 cfs Dec. 25, 1955, estimated on basis of 

peak flow at station near Lompoc; no flow for several months each year.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements or observations of- no flow generally made once a week. Plow 

regulated by Jameson Lake and Gibralter and Cachuma Reservoirs (see p. 155,156, 161). Water 

diverted out of basin from Jameson Lake and Gibraltar and Cachuma Reservoirs to cities 

of Montecito, Santa Barbara, and Goleta for municipal water supply. Pumping from wells 

along river for irrigation also affects surface flow at this station.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

21

22

£3

£4

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

O.I

.1

.1

.1

.1

.1

.1.1

.1

.1

.1

.1

.1.1.1

.1

.1.1

.1.1

.1.1

.1.1.1

.1.1

o

0 

0

0

2.7

0.09

5.4

Nov.

5"0

0

.4

.4

.4

.4

.4

.4

.4

.4

.1

.1

.1

.1

.1

.1

.1

.1

.1

O

0

0

0

0

0

0

0

0

0

4.1

0.14

8.1

Dec.

O

O

0

Jan.

0

0

0

0

0

0

O

0

0

a

0

0

11

.8

.3

.3

.3

.3

.3

1.1

1.4

1.4

1.4

1.8

2.2

3.9

3.3

2.9

17~4.8

3.3

57.8

1.86

115

Feb.

2.8

2.4

2.2

2.0

1.8

2.0

2.0

3.3

5.4

3.5

2.9

2.8

2.8

2.8

2.6

2.4

2.4

2.4

2.4

2.£

2.3

2.8

78

T9

8.8

6.0

4.8

34

208.8

7.46

414

Calendar year 1956: Max 1,55O Mln 0

Mar.

19

17

20

18

15

13

13

13

14

15

13

12

12

12

12

12

12

12

12

1£

10

11

9.6

8.8

9.2

10

9.2

6.0

6.0

5.1

574

369.3

11.9

732

Apr.

4.3

3.9

3.5

3.1

2.6

2.0

1.8

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.2

1.7

7.7

4TT

2.9

2.9

2.8

2.0

1.6

1.4

1.2

1.2

1.0

1.2

-t!

66.2

£.21

131

Mean 24.5

May

l.O

17o

1

.9

.8

.7

.6

.6

.7

.7

.7

.6

.5

.5

.5

.5

.5

.5

.6

.7

.8

.9

.8

.7

.7

.6

.6

.5

.4

.4

.4

20.4

0.66

40

June

0.4

T3

.3

.3

.3

.3

.3

.2

.2

.3

.2

.2

.2

.3

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

5.4

0.18

11

July

~7T 0.1

.1

.1

.1

.1

.1

.1

O

0

0

o

0

0

0

o

0

0

0

o

0

0

0

0

o

0

0

o

0

0

0

0.8

0.03

1.6

Aug.

O

0

0

Sept.

0

0

0

Ac-ft 17,810

Water year 1956-57: Max 78 Mln O Mean 2.02 Ac-ft 1,460

Note. No gage-height record May 3-7, 1O-14, 18-21; discharge Interpolated.
SANTA YNEZ RIVER BASIN 17S

Santa Ynez River near Lompoc, Calif.

Location.--Lat 34°38'39", long 120°25'48", near east boundary of La Mission Vieja de la 

Purlsima Grant, on downstream end of center pier of bridge on State Highway 150, 

1.5 miles east of Lompoc, Santa Barbara County, and 2.5 miles downstream from 

Salsipuedes Creek.

Drainage area. 790 sq mi.

Records available. November 1906 to September 1918 (1909, gage heights only), April 

1925 to September 1957.

Gage. Water-stage recorder. Datum of gage is 79.28 ft above mean sea level, datum of 

TT929. Prior to Dec. 14, 1928, staff gage and Dec. 14, 1928, to Nov. 30, 1939, waterstage recorder, at site 600 ft upstream at various datums.

Extremes. Maximum discharge during year, 267 cfs Feb. 23 (gage height, 6.72 ft); no flow 

Oct. 1 to Jan. 12, Jan. 14-19, 21-25, May 2 to Sept. 30.

1908-18, 1925-57: Maximum discharge, 45,000 cfs Mar. 3, 1938 (gage height, 29.3 ft, 

site and datum then in use), from rating curve extended above float measurement of 

38,000 cfs by logarithmic plotting; no flow at times in some years.

Maximum daily discharge, estimated as 62,000 cfs, occurred Jan. 9, 1907.

Remarks. Records good. Discharge measurements or observations of no flow generally made 

two times a month. Flow regulated by Jameson Lake and Gibraltar and Cachuma Reservoirs 

(see p. 155,156,161). Water diverted out of basin from Jameson Lake and Gibraltar and 

Cachuma Reservoirs to cities of Montecito, Santa Barbara, and Goleta for municipal 

supply. Some water pumped from wells along river banks for irrigation.

Revisions (water years) . WSP 611: Drainage area. WSP 931: 1914-40(M). WSP 981: 1938(M).

Rating table, water year 1956-57 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Feb. 3-8, 1O-23)

4.1

4.7 

4'.8 

5.0 

5.2 

5.5

7.9

13

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

0

0

0

0

0

0

0

0

0

1.9

0

0

0

0

0

0

.1

0

0

o

0

0

6

6

2

8 6

1 6

16.4

0.53

33

Feb.

1.0

.8

.6

.5

-±!

.3

.4

1.7

3.4

1.5

a. 3

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.2

1.0

1.0

1.2

67

14

7.9

5.8

4.4

27

-

149.5

5.34

297

Mar.

22

15

16

16

14

14

12

13

14

16

14

13

12

11

11

12

12

11

11

11

9.7

8.8

7.9

7.9

7.0

7.4

7.0

5.8

5.4

5.0

4/7

346.6

11.2

687

Apr.

4.1

4.1

3.6

2.8

2.4

1.6

1.5

1.0

1.0

.8

.6

.5

.2

.2

.2

.1

.2

5.3

378

2.8

2.4

2.0

1.6

1.3

1.0

.9

.7

.5

.3

.1

47.6

1.59

94

May

0.1 0~

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0.1

0.003

0.20

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 1,560 Mln 0 Mean 24.6 Ac-ft 17,870

Water year 1956-57: Max 67 Mln 0 Mean 1.53 Ac-ft 1,110
176 SANTA YNEZ RIVER BASIN

Santa Ynez River at H Street, near Lompoc, Calif.

Location. Lat 34°40 I 10", long 120°27i20", in Lompoc Grant, near left bank on downstream 

side of H Street Bridge on State Highway 1, 2 miles north of Lompoc, Santa Barbara 

County.

Drainage area. 816 sq mi.

Records available.--April 1947 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 56.74 ft above mean sea level, datum of 

1929. Since Apr. 26, 1947, supplementary water-stage recorder at same datum on third 

pier from right bank. Nov. 19, 1952, to May 31, 1954, supplementary water-stage 

recorders at various sites and datums near bridge.

Extremes.--Maximum discharge during year, 53 cfs Feb. 23 (gage height, 6.97 ft); no flow 

most of the time.

1947-57: Maximum discharge, 37,900 cfs Jan. 16, 1952 (gage height, 17.4 ft), from 

rating curve extended above 2,900 cfs by logarithmic plotting; no flow for large parts 

of each year.

Remarks.--Records good. Discharge measurements or observations of no flow generally made 

Ewo~or more times a month. Plow regulated by Jameson Lake, and Gibraltar and Cachuma 

Reservoirs (see p. 155, 156, 161). Water diverted out of basin from Jameson Lake, and 

Gibraltar and Cachuma Reservoirs to cities of Montecito, Santa Barbara, and Goleta for 

municipal water supply. Pumpage from wells along river for irrigation affects surface 

flow at this station.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, in cubic feet per second)

6.4

6.5

6.6

.2 

1.0

6.7

6.8

6.9

3.4

9.6

25

Discharge, in cubic feet per second, water year October 1956 to September 1957

Feb. 23.............. 16

24.............. 1.1

Mar. 1.............. 1.4

Month

Calendar year 1956..... 

Water year 1956-57.....

Cfs-days Maximum

16

1,690 

16

Minimum

0 

0

Mean

22.7 

.05

Runoff in 

acre-feet

2.8

16,520 

37

Note. Plow occurred only on days listed above.

Santa Ynez River at 13th Street, near Lompoc, Calif.

Location.--Lat 34°40i05", long 120°28i25", in Lompoc Grant, on right bank at 13th Street 

crossing, 2 miles northwest of Lompoc, Santa Barbara County. Prior to Nov. 27, 1956, 

at site 300 ft downstream.

Drainage area. 820 sq mi.

Records available.--October 1954 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 70 ft (from topographic map). Prior to 

FTov. 27, 1956, at various sites within 300 ft at same datum.

Extremes.--Maximum discharge during year, 11 cfs Feb. 23 (gage height, 1.74 ft); no flow 

all year except for Feb. 23.

1954-57: Maximum gage height, 7.06 ft Dec. 25, 1955 (discharge not determined); no 

flow for several months each year.

Remarks. Records poor. Discharge measurements or observations of no flow generally made 

twice monthly. Flow regulated by Jameson Lake, and Gibraltar and Cachuma Reservoirs 

(see p. 155, 156, 161 ). Water diverted out of basin from Jameson Lake, and Gibraltar 

and Cachuma Reservoirs to cities of Montecito, Santa Barbara, and Goleta for municipal 

supply. Some water pumped from wells along bank of river for irrigation in valley 

upstream.

Discharge, in cubic feet per second, water year October 1956 to September 1957 

Feb. 23.............. 1.8 ,

Month

Calendar year 1956..... 

Water year 1956-57.....

Cfs-days Maximum

1,700 

1.8

Minimum

0 

O

Mean

ZO.4 

.005

Runoff in 

acre-feet

14,81O 

3.6

Note. Plow occurred only on day listed above.
SANTA YNEZ RIVER BASIN 177

Santa Ynez River at barrier, near Surf, Calif.

Location.--Lat 34°41'20", long 120°35'05", in Lompoc Grant, on upstream side at center of 

salt-water barrier, 1.0 mile upstream from mouth and 1.2 miles east of Surf, Santa 

Barbara County.

Drainage area. 895 sq mi.

Records available.--May 1947 to September 1957.

Gage.--Water-stage recorder and compound broad-crested weir, Datum of gage is 5.5 ft

above mean sea level, datum of 1929.

Average discharge.--10 years, 47.6 cfs (34,460 acre-ft per year); median of yearly mean 

discharges, 1.3 cfs (940 acre-ft per year).

Extremes.--Maximum discharge during year, 12 cfs Feb. 23 (gage height, 1.37 ft); no flow 

Oct. 1 to Feb. 7, Apr. 10 to Sept. 30.

1947-57: Maximum discharge, 36,000 cfs Jan. 16, 1952 (gage height, 6.50 ft), from 

rating curve extended above 200 cfs on basis of weir formula; no flow for several 

months of each year.

Remarks. Records fair. Discharge measurements or observations of no flow generally made 

two or more times a month. Plow regulated by Jameson Lake and Gibraltar and Cachuma 

Reservoirs (see p. 155,156,161). Water diverted out of basin from Jameson Lake and 

Gibraltar and Cachuma Reservoirs to cities of Montecito, Santa Barbara, and Goleta for 

municipal supply. Pumpage from wells along river for irrigation affects flow at this 

station.

Rating table, water year 1956-57 (gage height, In feet,

and discharge, in. cubic feet per second) 

(Shifting-control method used Mar. 1 to Apr. 23)

0

.5 

1.3 

3.6 

5.1

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean Ac-rt

Oct.

0

0

0

Nov.

0

0

o

Dec.

0

0

0

Jan.

0

0

0

Feb.

0Q0

0

0

0

o

.2

1.0

1.0

.8

.5

.5

.5

.5

.6

.6

.7

.7

.7

.5

.6

4.1

4.8

1.3

1.4

3.5

-

26.6

0.95

53

Mar.

4.0

1.1

1.0

.9

.8

.7

.7

.8

.9

1.0

1.0

1.0

1.0

1.0

1.1

1.3

1.3

1.4

1.6

1.7

1.6

1.4

1.1

.9

.6

.4

.3

75

.3

.3

.3

31.8

1.03

63

Apr.

0 2 

2

1

1

1

1

1

1

0

O

0

0

o

o

0

0

o

0

0

0

0

0

0

0

o

0

0

o

0

1.2

0.04

2.4

May

0

0

o

June

0

0

O

July

0

0

0

Aug.

O

O

0

Sept.

0

0

o

Calendar year 1956; Max 2,O5O Mln 0 Mean 23.7 Ac-ft 17,210 

Water year 1956-57; Max 4.8 Mln O Mean O.16 Ac-ft 118
178 SAN ANTONIO CREEK BASDJ

San Antonio Creek near Casmalia, Calif,

Location.--Lat 34°46'56", long 120°31'47", In Jesus Maria Grant, on Camp Cook Military 

Reservation on downstream side of left center pile bent of San Antonio road bridge, 

0,7 mile east of Junction of San Antonio road with Lompoc-Casmalia road and 3.8 miles 

south of Casmalia, Santa Barbara County.

Records available. October 1955 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 160 ft (from topographic map).

Extremes.--Maximum discharge during year, 27 cfs Feb. 28 (gage height, 2.52 ft); minimum 

dally, 0.1 cfs June 19, 20.

1955-57: Maximum discharge, 463 cfs Jan. 25, 1956 (gage height, 6.15 ft); minimum 

daily, that of June 19, 20, 1957.

Remarks. Records good except those for periods of no gage-height record and indefinite 

sTJage-discharge relation, which are fair. Discharge measurements generally made twice 

a month. Flow affected by pumpage for irrigation from wells along stream.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

2S

29

30

31

Total

Mean

Ac-ft

Oct.

1.6 }-

1.2 },.

.8

}»

al.4

> al.5

al.6

1.5

1.5

42.8

1.38

85

Nov.

O" 1.6

1.6

1.7

1.7

1.7

1.8

1.8

1.8

1.9

1.9

1.9

2.0

2.0

1.8

1.8

1.8

1.8

1.9

1.8

1.9

1.9

1.9

1.9

2.0

2.0

2.1

2.1

2.2

2-2

56.1

1.87

111

Dec.

2.2

2TJ

2.4

2.4

2.7

M772

3.1

3.1

3.1

3.0

3.0

3,0

3.0

3.0

3.0

3.0

3.2

2.9

3.0

3.2

3.0

2.9

3.0

3.0

3.0

3.2

3.2

3.3

3.3

3.4

92.5

2.98

183

Calendar year 1956: Max 294

Jan.

3.5

3.5

3.5

3,4

7.8

5.0

3.8

3.6

3.5

3.2

3.3

3.9

~4.6 11

3,5

3.3

3.2

3.2

3.2

11

8.0

4.4

4.0

5.0

4.3

10

5.2

4.2

5.2

4.3

149.4

4.82

296

Peb.

3.8

3.9

3,8

3.6

3.6

3.8

4.0

~?.8 14

5.0

4.3

4.2

3.9

3.8

3.5

3.6

3.6

3.8

3.8

3.6

3.5

3.6

12

6.3

4.2

3.8

3.8

14

-------

144.6

5.16

287

Mln 0.8

Mar.

Q a 4. '^

4,9

4,0

3.7

3.5

3.5

3.2

3,3

5,1

4.9

3.4

3.1

3.2

2.8

2.8

4.0

3.5

3.2

3.9

3.5

3.0

2.7

2.6

2.5 575"

2.7

2.6

2.7

2.6

2.6

108.1

3.49

214

Apr.

2.6

2.6

2.6

2.6

2.5

2,5

2.5

2.4

2,3

2.1

2,3

2.3

2.2

2.4

2.4

2.1

4.6

9.4

77z

4.3

3.9

3.4

3.0

2.8

2.6

2.1

2.0

1.9

T79

1.9

86.4

2.88

171

May

1.8

1.9

1.7

1.7

2.0

2.3

1.9

2.3

2.3

1.6

.8

1.6

1.5

.9

1.5

1.2

.9

1.6

8.4 372-

2.9

2.5

2.0

1.6

1.9

1.8

1.7

1.8

2.6

2.4

64.1

2.07

127

June

1.8

1.7

1.3

1.2

1.4

1.5

1.6

1.0

1.3

2.9

1.5

.9

.7

.9

.5

.7

.7

.2

.1

.1

.2

.2

.6

.8

.9

.8

.6

.8

1.8

1.9

30.6

1.02

61

July

2.3

2.0

2.7

3.0

274

1.9

1.6

1.4

1.3

1.1

1.0

.9

.9

.9

.7

.7

.7

.7

.7

.7

.7

.7

.7

~75 .6

.6

.6

.6

.6

.6

.6

34.5

1.11

68

Aug.

0.6

.5

.7

.7

.6

.5

.6

.5

.5

.5

.3

.7

.5

.6

.6

.5

.9

7?

.9

.9

.8

.7

.7

.7

.7

.7

.7

.8

.9

.9

.9

20.8

0.67

41

Sept.

0.9

.9

.9

.9

.9

.9

.8

.7

.7

.8

.8

.8

.8

.8

.7

.7

.7

.6

77

.8

.9

.9

.9

1.0

1.1

1.1

.9

.9

.9

.9

25.3

0.84

50

Mean 4.72 Ac-ft 3,420

Water year 1956-57: Max 14 Mln 0.1 Mean 2.34 Ac-ft 1,690

Peak discharge (base, 50 cfs). No peak above base.

a No gage-height record; discharge estimated on basis of 2 discharge measurements, weather 

records, and records for nearby stations.

Note. Stage-discharge relation Indefinite Oct. 1-15, Oct. 31 to Nov. 14, Nov. 22-28, Nov. 30 to 

Dec. 12; discharge estimated on basis of 4 discharge measurements, weather records, and records 

for nearby stations.
SANTA MARIA RIVER BASIN 179

Cuyama River near Ventucopa, Calif.

Location. Lat 34-41'20", long 119-21'25", in NE^NW^ sec. 19, T. 7 H. , R. 23 W., on 

downstream side near left end of Ozena Bridge on TJ. S. Highway 399, 4.5 miles downstream from confluence of Dry Canyon and Alamo Creek and 12 miles southeast of 

Ventucopa.

Drainage area. 90 sq mi, approximately.

Records available. November 1944 to September 1957.

gage. Water-stage recorder. Altitude of gage is 3,500 ft (from topographic map). Prior 

To Sept. 5, 1952, at various locations on bridge at different daturas.

Average discharge.--12 years (1945-57), 5.17 cfs (3,740 acre-ft per year); median of 

yearly mean discharges, 3.2 cfs (2,300 acre-ft per year).

Extremes.--Maximum discharge during year, 1,840 cfs Jan. 12 (gage height, 5.65 ft); minimum daily, 0.1 cfs Oct. 1, July 30 to Sept. 11.

1945-57; Maximum discharge not determined, probably occurred Jan. 15, 1952 (gage 

height, 6.3 ft, datum then in use); no flow for many days during July, August, and 

September 1951.

Remarks. Records fair. Discharge measurements generally made twice a month. Minor 

diversions above station for irrigation.

Dischargej in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

?2

_3

24

25

26

27

28

29

30 

31

Total

Mean

Ao-ft

Oct.

0.1

.2

.2

.4

,7

.7

.7

.4

.4

.3

.3

.3

.3

.3

.3

.3

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6 

.6

13.7

0.44

27

Nov.

~

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.8

75

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

21.7

0,72

43

Dec.

0.8

.8

.8

.8

.8

.8

ji

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.7

.8

.8

.8

.8 

.8

25.8

0.83

51

Jan.

"78 0.8

.8

.8

2.4

1.4

1.7

2.5

1.8

1.5

1.7

265

252

5.2

3.2

3.4

3.4

3.4

3.4

3.4

4.0

3.7

3.7

3.4

3.2

3.0

2.8

2.4

2.2

2.0

1.8

590.8

19.1

1,170

Feb.

1.8

1.8

1.8

1.8

1.8

1.8

1.8

3.9

3.0

2.0

2.2

2.6

3.2

2.8

2.4

1.7

1.5

1.4

i.'s

1.5

1.8

~ZZ 225

8.2

5.2

3.4

26

-

335.3

12.0

665

Mar.

28-9.0

5.4

5.0

4.6

4.2

4.2

4.2

7.9

17

3.2

2.9

3.4

3.2

3.5

3.5

3.2

3.2

3.2

2.5

2.3

2.0

1.6

1.6

1.6

1.6

1.6

1.6

1.4

1-4 

1.4

139.4

4.50

276

Apr.

1.6

1.6

1.6

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.2

T72

1.2

1.3

6.7

7.9

277

2.7

2.5

2.3

2.0

1.8

1.6

1.6

1.4

1.4

1.3

1.3

58.9

1.96

117

May

1.2

1.2

1.3

1.2

1.2

1.0

1.2

1.3

1.3

1.6

3.2 2~3

1.8

2.3

2.0

1.8

1.4

1.4

2.5

2.3

1.8

1.8

1.8

1.6

1.4

1.2

1.0

1.0

.9

79 

.9

48.4

1.56

96

June

0,8

.8

.8

.8

.8

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.4

.4

.4

?

ft

.2

.2

.2

.2

.2

.2

15.3

0.51

30

July

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.a.

6.0

0.19

12

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

3.1

0.10

6.1

Sept.

0.1

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

72

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

4.9

0.16

9.7

Calendar year 1956: Max 249 Min 0.1 Mean 2.98 Ac-ft 2,170

Water year 1956-57: Max 265 Min 0.1 Mean 3.46 Ac-ft 2,500

Peak discharge (base, 50 cfs). Jan. 12 (12 p.m.) 1,840 cfs (5.65 ft); Feb. 23 (4 a.m.) 1,020 cfs 

(4.90 ft); Feb. 28 (6 p.m.) 79 cfs (3.82 ft); Mar. 10 (1 a.m.) 52 cfs (3.71 ft); Apr. 16 (11 p.m.) 

62 cfs (3.75 ft).

5105Z9 O - 59 - 13
180 SANTA MARIA RIVER BASIN

Guyana River near Santa Maria, Calif.

Location.--Lat 35°00"42", long 120°16"43", in Suey Grant, on right bank 60 ft downstream 

from highway bridge, 2.6 miles upstream from Alamo Creek, and 8.9 miles northeast of 

Santa Maria, Santa Barbara County.

Drainage area. 912 sq mi.

Records available. December 1929 to September 1957.

Gage. Water-stage recorder. Datum of gage is 608.93 ft above mean sea level, unadjusted. 

Prior to Oct. 3, 1936, at same site at different datum. Oct. 3, 1936, to Feb. 2, 1945, 

at site 200 ft upstream at datum 1.31 ft higher. Feb. 3 to June 21, 194S, at same 

site at datum 0.78 ft higher. June 21, 1945, to July 8, 1947, at same site at datum 

1.00 ft higher.

Average discharge.--27 years (1930-57), 19.7 cfs (14,260 acre-ft per year); median of 

yearly mean discharges, 9.7 cfs (7,000 acre-ft per year).

Extremes.--Maximum discharge during year, 272 cfs Jan. 14 (gage height, 4.34 ft); no flow 

Oct. 1 to Jan. 13, July 14 to Sept. 30.

1929-57: Maximum discharge, 17,300 cfs Mar. 3, 1938 (gage height, 16.6 ft, from 

floodmarks, site and datum then in use), from rating curve extended above 5,000 cfs on 

basis of slope-area determination of peak flow; no flow at times in some years.

Remarks. Records good. Discharge measurements or observations of no flow generally made 

twice a month. Some pumpage for irrigation from wells along stream above station.

Revisions.--WSP 931: Drainage area.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Calendar year 1956: Max 325

Jan.

0

0

0

0

0

0

0

0

0

0

0

0

0

45

Zi.

18

6.7

4.1

2.1

2.9

3.1

2.3

1.4

1.3

1.1

1.2

1.2

1.4

1.2

.7

.5

165.2

5.33

328

Feb.

g

J __

1.

28_'

23

8.4 7.7

-

78.8

2.81

156

Mar.

6.8

47T

3.5

4.2

4.1

2.9

2.4

2.1

1.7

1.5

1.4

1.2

.9

1.7

2.0

2.4

2.1

2.3

2.3

1.5

1.2

.9

.9

.8

.6

.6

.5

.5

.4

74

.4

58.3

1.88

116

Apr.

0.3

.3

.3

.2

72

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.7

2.8

.4

.4

1.7

.6

.4

.4

.4

.3

.2

.2

.2

.2

12.6

0.42

25

May

0.2

.1

rr

.1

.1

.1

.1.1

.1.1

.2

.2

.1

.1

.2

.1

.1

.3

~

1.2

.5

.4

.3

.2

.2

.2

.1

.1

.2

.2

.1

6.5

0.21

13

June

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.0

0.10

6.0

July

~7T 0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0'

0

0

0

0

0

0

1.3

0.04

2.6

Aug.

0

0

0

Sept.

0

0

0

Min 0 Mean 4.97 Ac-ft 3,610

Water year 1956-57: Max 71 Min 0 Mean 0:89 Ac-ft 647

Peak discharge (base, 200 efs). Jan. 14 (8 p.m.) 272 efa (4.34 ft).
SANTA MARIA RIVER BASIN 181

Alamo Creek near Santa Maria, Calif.

Location.--Lat 35°01'20", long 120°18'10", In Suey Grant, on right bank just downstream 

from highway bridge, 1.2 miles upstream from mouth and 9 miles northeast of Santa 

Maria, Santa Barbara County.

Drainage area. 87.7 sq mi.

Records available. October 1943 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 581.14 ft above mean sea level, datum of 1929.

Average discharge.--14 years, 4.21 cfs (3,050 acre-ft per year); median of yearly mean 

discharges, 2.0 cfs (1,400 acre-ft per year).

Extremes.--Maximum discharge during year, 2.3 cfs Apr. 17 (gage height, 1.75 ft); minimum daily, 0.4 cfs July 30 to Aug. 1.

1943-57: Maximum discharge, 2,820 cfs Jan. 15, 1952 (gage height, 8.00 ft), from 

rating curve extended above 500 cfs by logarithmic plotting; minimum daily, less than 

0.1 cfs in 1949-50.

Remarks. Records good. Discharge measurements generally made twice a month.

Rating table, water year 1956-57 (gage height, In feet,

and discharge, In cubic feet per second)

(Shifting-control method used Oct. 1-8, Nov. 13-18,

July 12 to Sept. 30)

1.4

1.5

1.6

1.7

0.2

.6

1.4

2.3

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

2

3

4 

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25 

26

27 

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

1.6

1.6

1.6

1.7 *, g -L * b 

1.6

1.6

1.5

T74- 1.4

1.5

1.5

1.5

1.5 

1.5

1.6

1.7

1.7

1.5

1.4

1.4

1.4

1.4

1.4

1.4 

1.4

1.4 

1.4

1.4

1.5

1.4

46.5

1.50

92

Nov.

1.5

1.6

1.6

1.6

1.6

1.7

1.7

1.6

1.5

1.5

1.5

1.7

1.6 

1.6

1.6

1.6

1.6

1.5

1.6

1.7

1.7

1.7

1.7

1.7

1.7 

1.6 

1.6

1.6

1.6

48.2

1.61

96

Dec.

1.6

1.6

1.6 

1.9

1.8

1.6

1.6

1.6

1.6

1.6

1.6

1.7

1.7 

1.7

1.7

1.8

1.8

1.7

1.8

1.9

1.9

2.0

270

2.0 

1.9

2.0 

2.0

2.0

1 8

1.8

54.9

1.77

109

Calendar year 1956: Max 427

Jan.

1.7

1.7

1.8

1.7

1.7

1.7

1.6

1.6

1.6

1.7

1.8

1.5 

1.5

1.5

1.5

1.5

1.5

1.7

1.6

1.6

1.6

1.6

1.6

1.7

1.7

1.7

1.7

1.6

1.6

50.8

1.64

101

Feb.

1.5

1.5

1.6

1.6

1.6

2.0

1.8

1.8

1.8

1.

1.

1. 

1.

1.

1.

1.

1.

1.

1.

1.

^ ^

i!i.

1.7 

1.9

-

47.5

1.70

94

Mar.

1.9 

1.7

1.7

1.6

1.6

1.5

1.5

1.7

1.6

1.5

1.4

T75

1.5

1.6

1.5

1.5

.5

.4

.5

.5

.5

.4

1.4

1.4 

1.4

1.4

1.4

1.4

47.1

1.52

93

Apr.

1.4

1.5

1.5

1.4

1.4

1.3

1.4

1.3

1.3

1.3

1.4

1.3

1.4

1.6

T75

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4 

1.3 

1.2

1.1

TTZ

41.2

1.37

82

May

1.2 

1.2

1.3

1.3

1.3

1.3

1.3

1.2

1.2

1.4

1.2

1.1

T7S

1.2

1.1

1.1

1.4

1.5

1.4

1.5

1.4

1.4

1.4

1.3

1.2 

1.2 

1.4

1.4

1.3

1.2

40.1

1.29

80

June

1.3 

1.3

1.2

1.0

.9

.8

.7

.7

.7

.7

.9

1.0

1.1

1.0 

1.1

1.0

1.1

.8

.7

.7

.7

.8

.7

^1

.7 

.7 

.8

.9

.8

26.4

0.88

52

July

0.8 

.7

.7

.6

.6 

.6

.6

.6

.6

.6

.6

.7

.8

.7

.7 

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

. 6 

.6 

.5

.5

.4

.4

19.4

0.63

38

Aug.

0.4 

.5

!s

. q° 

.9

.9

.9

.9

.8

.8

.8

.7

.7

.8

. 8 

.7 

.7

.7

.7

.7

22.6

0.73

45

Sept.

0.7

T~

20.6

0.69

41

Mln 1.0 Mean 4.69 Ac-ft 3,410

Water year 1956-57: Max 2.0 Mln 0.4 Mean 1.27 Ac -ft 923

Peak discharge (base, 50 cfs).- No peak above base.
182 SANTA MARIA RIVER BASIN

Huasna River near Santa Maria, Calif.

Location. Lat 35°01'20", long 120°19'20", in Suey Grant, on left bank 0.4 mile upstream 

from mouth and 8 miles northeast of Santa Maria, Santa Barbara County.

Drainage area. 119 sq mi.

Records available . December 1929 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 525 ft (from topographic map). Prior 

"^To Aug. 28, 1943, at site 350 ft upstream at different datum. Aug. 28, 1943, to 

Jan. 27, 1945, at site 25 ft downstream at different datum. Jan. 28, 1945, to 

Sept. 11, 1953, at site 50 ft downstream at datum 0.97 ft higher.

Average discharge. 27 years (1930-57), 18.5 cfs (13,390 acre-ft per year); median of 

yearly mean discharges, 7.2 cfs (5,200 acre-ft per year).

Extremes. Maximum discharge during year, 129 cfs Dec. 2 (gage height, 2.87 ft); no flow 

Oct. 1-8, June 19 to Sept. 30.

1929-57: Maximum discharge, 11,400 cfs Feb. 11, 1938 (gage height, 11.26 ft, site 

and datum then in use), from rating curve extended above 1,100 cfs on basis of slopearea determination of peak flow; no flow for parts of several years.

Remarks.--Records good. Discharge measurements or observations of no flow generally 

made twice a month.

Rating table, water year 1957-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.6

1.7

1.8

0

.3 

1.4

1.9

2.0

2.1

3.8 

8.4

16

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

?2

..3

24

25

26

27

28

29

30

31

Total

Hean

Ac-ft

Oct.

0

0

O

0

0

0

0

0

.1

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4 

.4

6.9

0.22

14

Nov.

~0.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.6

.6

.6

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

1.0

T72" 1 . 2

1.2

1.0

18.0

0.60

36

Dec.

0.9

g Q

378

2.6

3.5

2.9

2.4

1.9

1.7

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

61.4

1.98

122

Jan.

1.7

1.7

1.7

1.9

2.1

1.9

1.7

1.7

1.5

1.5

1.7

2.1

3.5

27T

1.9

1.7

1.7

1.5

1.4

57T

1.9

1.7

1.5

1.7

1.7

2.1

2.1

2.1

2.1

1.9

1.7

57.6

1.86

114

Feb.

1.7

1.7

i 1 *d 

1.4

1.4

1.4

1.5

3.5

372

2.6

2.4

2.4

2.1

2.4

2.4

2.4

2.6

2.6

2.6

2.6

2.4

2.4

2.9

2.6

2.4

2.1

1.9

2.9

-

63.9

2.28

127

Mar.

"~^ .9

'.1

.1

.9

.9

.9

.9

.1

.9

.5

.5

.5

.5

1.6

1.7

1.5

1.5

1.7

1.5

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

50.0

1.61

99

Apr.

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.4

1.4

1.2

2.3

3.8

279

2.6

2.4

2.1

1.7

1.5

1.4

1.2

1.0

1.0

.9

iTo

45.4

1.51

90

May

1.0

1.0

.9

.8

.8

.8

.8

1.0

.9

.8

1.0

1.0

.9

1.0

.9

.8

.7

1.7

4.1

37?

3.2

2.4

1.9

1.7

1.4

.4

73" .2

.4

.4

.4

36.9

1.19

73

June

0.4

.4

.4

.4

.4

.4

.5

.5

.6

il

.6

.5

.4

.4

.2

.2

.1

.1

5"0

0

0

0

0

0

0

0

0

0

0

7.2

0.24

14

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 1,000 Kin 0 Mean 13.4 Ac-ft 9,760

Water year 1956-57: Max 9.0 Kin 0 Hean 0.95 Ac-ft 689

Peak discharge (base, 40 efs). Dec. 2 (5 p.m.) 129 cfs (2.87 ft).
SANTA MARIA RIVER BASIN 183

Sisquoc River near Sisquoc, Calif.

Location. Lat 34°50'25", long 120°10'00", in sec. 20, T. 9 H., R. 31 W., on left bank 

2.2 miles upstream from La Brea Creek and 7 miles east of Sisquoc.

Drainage area.--29Q sq mi.

Records available.--October 1943 to September 1957. December 1929 to September 1933 at 

site 0.2 mile downstream; low-flow records not equivalent owing to diversion immediately upstream.

Gage. Water-stage recorder. Datum of gage is 624.30 ft above mean sea level, datum of 

T929 (Corps of Engineers bench mark). Prior to Aug. 24, 1951, at site 0.2 mile downstream at datum 3.70 ft lower; during this period, a supplementary gage at site 200 ft 

downstream from present site at different datums was generally used for periods of low 

flow.

Average discharge.--14 years (1943-57), 22.4 cfs (16,220 acre-ft per year); median of 

yearly mean discharges, 13 cfs (9,400 acre-ft per year).

Extremes. Maximum discharge during year, 743 ofs Jan. 13 (gage height, 4.58 ft); minimum daily, 0.4 cfs Nov. 2-11.

1943-57: Maximum discharge, 6,880 cfs Jan. 15, 1952 (gage height, 10.08 ft), 

from rating curve extended above 1,700 cfs on basis of slope-area determination of 

peak flow; minimum daily, 0.4 cfs Sept. 14, 19, 21, 1947, Oct. 5-9, 20-22, Nov. 18, 

1951, and Nov. 2-11, 1957.

Maximum discharge known, 11,000 cfs Mar. 2, 1938 (gage height, 8.1 ft, from highwater mark in gage well at site in use 1929-33), from rating curve extended above 

2,800 cfs by logarithmic plotting.

Remarks, Records good. Discharge measurements generally made twice a month. 

Revisions. WSP 1011; Drainage area.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17 

18

19

20

21

?Z

..3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.8

1.0

1.0

1.0

1.0

1.0

1.0

.8

.6

.6

.8

.8

.8

.8

,8

.8

1.0 

1.2 TTo

1.0

1.0

1.0

1.0

1.0

.8

.8

.8

.8

.8

.6

.5

26.9

0.87

53

Nov.

0.5

.4

TT

.4

.4

.4

.4

.4

.4

.4

.4

.6

.8

1.0

1.0

1.0

1.0 

1.0

1.0

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.0

1.0

1.0

.8

24,1

0.80

48

Dec.

0.8 T72

1.2

1.5

i.8.

1.9

1.5

1.5

1.5

1.2

1.0

1.0

1.0

1

1

1

1 

1

1

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.2

36,8

1.19

73

Jan."

1.2

1.2

1.2

1.2

1.2

JLO

1.0

1,0

1.0

1.0

1.0

1.2

~5T 167

14

5.1

2.4 

1.5

1.2

2.1

1.8

1.2

1.0

1.2

1.2

1.8

1.8

1.8

1.8

1*8

1.8

276.7

8.93

549

Feb.

1.8

1.8

1.8

1.5

TTF

1.5

1.8

2.4

2.4

1.8

1.8

1.8

1.8

1.8

1.8

1.8

2.1

2.1

2.1

2.1

2.1

2.1

34

58

3T

16

11

14

206.7

7.38

410

Mar.

86

52

33

24

18

14

12

11

12

12

12

10

9.5

9.5

9.5

11

11

11

10

9.5

8.1

.4

.4

.4

.4

.4

.4

6^8

6TS

6 . 8

6 .8

456.7

14.7

906

Apr.

5.7

5.7

4.6

4.1

TT

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.1

6.2 

23

32

2F

18

16

14

11

10

8.8

6.8

5.1

4.6

4.6

251.4

8.38

499

May

4.1

3.8

2.8

2.4

2.4

O" 2.1

2.4

2.4

2.4

3.8

4.1

3.8

3.8

4.1

3.8

3.2

4.1

7.4

li

36

24

21

17

14

12

9,5

8.1

7.4

6.8

5.7

272.5

8.79

540

June

4.6

3^2

2.8

2.8

2.8

2.8

2.8

3.8

4.1

3.8

2.8

2.8

3.2

3.2

2.8

fcf

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.8

1.8

2.1

2.1

74.3

2.48

147

July

2.1

2.1

2.1

2.1

1.8

1.5

1.5

1.5

1.5

1.0

1.0

.i!

.8

1.0

1.2

1.2

1.0 

.8

.8

.8

.8

.8

.8

.8

.8

.B

.8

.8

.8

°o

* 8

35.4

1.14

70

Aug.

0.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

IT!

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.2

1.2

1.2

1.2

tf

29.2

0.94

58

Sept.

1.5

T^

1.5

1.5

1.5

1.5

1.5

.5

.5

.2

.0

.0

.0

1.0

1.0

1.0

1.0 

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

34.7

1.16

69

Calendar year 1956s Max 1,050 Mln 0.4 Mean 17.4 Ac-ft 12,610

Water year 1956-57: Max 167 Mln 0.4 Mean 4.73 Ac-ft 3,420

Peak discharge (base, 100 cfs). Jan. 13 (12:30 p.m.) 743 cfs (4.58 ft); Feb. 23 (8 p.m.) 214 cf£ 

(5.65 ft); Mar. 1 (8 a.m.) 158 cfs (5.57 ft)._______________________________________

Hote. No gage-height record Dec. 14-30; discharge Interpolated.
184 SANTA MARIA RIVER BASIN

La Brea Creek near Sisquoc, Calif.

Location.--Lat 34°51'10", long 120°11'SS", in SE£ sec. 13, T. 9 N., R. 32 W., on right

bank 2,100 ft upstream from mouth and 5.5 miles east of Sisquoc. 

Drainage area.--86.7 sq mi.

Records available.--October 1943 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 550 ft (from topographic map). 

Average discharge.--14 years, 3.61 cfs (2,610 acre-ft per year); median of yearly mean

discharges, 0.6 cfs (430 acre-ft per year). 

Extremes.--Ho flow during year. 

 T943-57: Maximum discharge, 3,320 cfs Jan. 15, 1952 (gage height, 5.94 ft); no flow

for part or all of each year. 

Remarks.--Ho flow since May 29, 1956. Discharge measurements or observations of no flow

generally made twice a month. Perennial low flow from basin above sinks beneath stream

bed before reaching station. Figures for calendar year 1956 are as follows:

Month Cfs-days

1,027.5

Maximum

269

Minimum

O

Mean

2.81

Runoff in 

acre-feet

2,040

Tepusquet Creek near Sisquoc, Calif.

Location.--Lat 34°52'20", long 120°14'35", in NE£ sec. 9, T. 9 N., R. 32 W., on downstream

wingwall of right bridge abutment, 1.1 miles upstream from mouth and. 3 miles east of

Sisquoc.

Drainage area.--28.9 sq mi.

Records available.--October 1943 to September 1957.

Gage. Water-stage recorder. Concrete control since July 1957. Altitude of gage is 

~^TOO ft (from topographic map). Prior to Dec. 9, 1948, at same site at datum 0.9 ft

higher. 

Average discharge.--14 years, 1.00 cfs (724 acre-ft per year); median of yearly mean discharges, 0.6 cfs (430 acre-ft per year). 

Extremes.--Maximum discharge during year, 1.5 cfs Apr. 17 (gage height, 1.60 ft); minimum

daily, 0.1 cfs for many days in November, July to September.

1943-57: Maximum discharge, 318 cfs Jan. 15, 1952 (gage height, 5.93 ft), from

rating curve extended above 15 cfs on basis of slope-area determination of peak flow;

no flow Sept. 8, 1949. 

Remarks.--Records good. Discharge measurements generally made twice a month.

Rating tables, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second) 

(Shifting-control method used Jan. 11-3O)

Oct. 1 to July 3 July 4 to Sept. 3O

1.3

1.4

1.5

0.1 

.3

1.56

1.60

0.1 

.2

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

~

0.2 

.3

i

tf

.3

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

8.8

0.28

17

Nov.

0.3

T3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

TT

.1

.2

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

5.7

0.19

11

Dec.

0.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.4

74

.4

.4

.3

.3

.3

.3

.3

8.3

0.27

16

Calendar year 1956 : Max 75

Jan.

0.3

.3

.4

.4

.4

.3

.4

.4

.4

.3

.2

.3

.4

.4

.4

.3

.3

.3

.3

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

10.2

0.33

20

Feb.

0.3

. 3

.3

.3

.3

.3

.3

.5

.4

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.5

.4

.4

.4

.4

.5

-

10.2

0.36

20

Mar.

O.4

.4

.4

.4

.4

73- .3

.3

.4

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

11.6

0.37

23

Apr.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.3

.5

7¥

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

tf

9.9

0.33

20

May

0.3

. 3

.3

.3

.3

.3

.4

.4

.3

.4

.5

.4

.4

.4

.4

.4

.4

.5

75" .6

.6

.5

.5

.5

.5

.5

.4

.5

.5

.4

.4

13.2

0.43

26

June

O.4

.4

.4

.4

.4

.4

.4

.4

75" .5

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.2

72

.2

.2

.2

.3

.3

.3

.3

10.3

0.34

20

July

~0.3

.3

.2

.2

.2

.2

.2

.1

72

.2

.2

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

5.9

0.19

12

Aug.

0.1

f 1

ll

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

71

.1

3.2

0.10

6.3

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.0

0.10

6.0

Min 0.1 Mean 1.47 Ac-ft 1,07O

Water year 1956-57: Max O.6 Min O.I Mean O.27 Ac-ft 197

Peak discharge (base, 1O efs). No peak above base.
SANTA MARIA RIVER BASIN 185

Slsquoc River near Garey, Calif.

Location. Lat 34°53'38", long 120°18'20", in SWiSW&SEi;- sec. 36, T. 10 N., R. 33 W., on

downstream end of pier near center of county road bridge, 0.6 mile northeast of Garey

and 3.7 miles downstream from Tepusquet Creek. 

Records available.--February 1941 to September 1957. 

Gage.--Water-stage recorder. Altitude of gage is 360 ft (from topographic map). Prior

to Aug. 27, 1954, at site 3 miles upstream at different datum. Aug. 28, 1954, to

Nov. 1, 1956, at site 0.7 mile upstream at different datum. 

Average discharge. 16 years, 21.3 cfs (15,420 acre-ft per year); median of yearly mean

discharges, 7.4 cfs (5,400 acre-ft per year). 

Extremes.--Maximum discharge during year, 105 cfs Oct. 19 (gage height, 4.08 ft); no flow

i'or most of year.

1941-57: Maximum discharge, 13,000 cfs Jan. 23, 1943 (gage height, 8.46 ft, site

and datum then in use), from rating curve extended above 2,000 cfs on basis of records

at upstream stations; no flow for several months each year. 

Remarks. Records poor. Discharge measurements or observations of no flow generally made

twice a month. Some diversion above station for irrigation. 

Revisions (water years).--WSP 1011: 1941, 1943.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

9.1

28

0

0

0

0

0

0

0

0

0

0

0

0

37.1

1.20

74

Nov.

0

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.007

0.4

Dec.

0.1

0

.1

.1.1

.1

.1

0

0

0

.1

.1

.1

.1

.1

0

.2

.2

.2

.2

.2

0

0

0

0

0

0

0

0

0

0

2.1

0.07

4.2

Jan.

0

0

0

Feb.

0

0

0

.1

.2

.2

.2

0

0

0

0

0

0

.2

.2

0

0

.2

0

.1

.2

.2

0

0

.2

.3

.3

0

-

2.6

0.09

5.2

Mar.

0

0

0

.3

.3

.3

.2

.3

0

0

.3

.3

.3

.3

^_4

.4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.4

0.11

6.7

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

.1

.1

.1

.1

.1

0

0

0

0

0.6

.0.02

1.2

May

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

0

0

0

0.4

0.01

0.8

June

0

0

0

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

7T

0

0

0

.1.1.1

0.5

0.02

1.0

Aug.

0.1

.1

0.

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.4

0.01

0.8

Sept.

00"

0

0

0

0

0

0

0

0

0

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.3

0.01

0.6

Calendar year 1956: Max 1,400 Min 0 Mean 9.92 Ac -ft 7,200

Water year 1956-57: Max 28 Min 0 Mean 0.13 Ac-ft 95

Peak discharge (base, 100 cfs).--Oct. 19 (5 p.m.) 105 cfs (4.08 ft).

Santa Maria River at Guadalupe, Calif.

Location.--Lat 34°58'35", long 120°34'15", in Guadalupe Grant, on downstream side of 

third bridge pier from left bank on State Highway 1, 0.5 mile north of Guadalupe, 

Santa Barbara County and 4.5 miles upstream from mouth.

Drainage area.--1,763 sq mi.

Records available. January 1941 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 64.92 ft above mean sea level, datum of 

1929, supplementary adjustment of 1934 (Corps of Engineers bench mark). Supplementary 

water-stage recorder near right bank at same datum. Jan. 19, 1941, to Aug. 11, 1955, 

at site.100 ft upstream at same datum. Oct. 5, 1945, to Aug. 11, 1955, supplementary 

gage near right bank 100 ft upstream at same datum.

Average discharge. 16 years, 18.3 cfs (13,250 acre-ft per year); median of yearly mean 

discharges, 2.6 cfs (1,900 acre-ft per year).

Extremes. No flow during the year.

T941-57: Maximum discharge, 23,800 cfs Jan. 16, 1952 (gage height, 8.18 ft), from 

rating curve extended above 8,000 cfs by logarithmic plotting; no flow for several 

months each year.

Remarks. No flow since Jan. 31, 1956. Observations of no flow generally made once or 

twice a month. Several small surface diversions and extensive pumpage from wells for 

irrigation along stream above station. Figures for calendar year 1956 are as follows:

Month Cfs-days Maximum Minimum Mean Runoff in 

acre-feet
186 ARROYO GRANDE BASIN

Arroyo Grande at Arroyo Grande, Calif.

Location. Lat 35°07'30", long 120°34'05", in Pismo Grant, on left bank at Arroyo Grande, 

San Luis Obispo CoUnty, 0.7 mile upstream from U. S. Highway 101.

Drainage area. 106 sq mi.

Records available. December 1939 to September 1957.

Gage. Water-stage recorder and broad-crested weir. Datum of gage is 97.77 ft above mean 

Sea level, datu* of 1929, supplementary adjustment of 1934. Prior to July 10, 1947, 

at datum 0.50 ft higher.

Average discharge. 17 years (1940-57), 21.2 cfs (15,350 acre-ft per year); median of 

yearly mean discharges, 10 cfs (7,240 acre-ft per year).

Extremes. Maximum discharge during year, 11 cfs Mar. 23 (gage height, 1.63 ft); minimum daily, 0.1 cfs Sept. 12.

1939-57: Maximum discharge, 5,370 cfs Jan. 15, 1952 (gage height, 11.97 ft); minimum daily, less than 0.1 cfs for several periods in August, September 1949.

Remarks. Records good. Discharge measurements generally made twice a month. Many

small and intermittent diversions by pumping from stream for irrigation above station.

Revisions, (water years). WSP 931: 1940. WSP1011: 1941, 1942 (M) .

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

8

6 

7

8

9

10

11

12

IS

14

IS

16

17

18

19

£0

Zl

22 

23

£4

25

26 

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.0

3.1

£.8

3.6

5.2

4.0 

4.0

4.1

3.9

3.7

2.7

1.7

1.6

4.5

4.2

3.9

3.4

2.5

2.1

2.1

1.8

H2.6

2.8

1.9 

2.5

3.3

3.8

3.5

4.3

94.2

3.04

187

Nov.

4.8

5.0

4.1

5.0

4.8

4.5 

2.5

1.5

T7T

1.9

2.4 ~~ 3.2

5.2

 S'6

TTe

4.3

4.6

2.0

E.4

3.3

2.9

3.0 

3.5

3.6

3.4

2.7 

3.3

3.2

2.7

2.4

104.1

3.47

206

Dec.

1.9

2.9

4.1

4.1

6.0

H5.2

9.4

5.1

3.6

3.6

3.5

3.5

2.9

4.3

4.8

4.6

3.4

2.2

2.4

3.5 

3.8

3.3

3.3

3.2 

1.6 -LO

2.2

4.0

4.0

116.2

3.75

230

Jan.

4.6

4.8

4.4

3*8

6.4

6.4 

6.4

6.4

6.6

6.6

6.4

6.6

6.9

6.2

6.2

6.2

6.6

6.6

6.4

6.9

6.4

6.6 

6.6

6.6

7.3

fcf

7.6

7.6

7.3

6.9

199.5

6.44

396

Feb.

6.9.

6.9

7.3

7.1

7.8

8.1 

8.9

9.5

129.8

9.8

9.4

8.9

8.9

8.7

8.7

8.7

8.7

8.4

8.1

7.8

7.8 

8.9

7.6

7.8

7.6 

7.6

9.2

_

-------

235.1

8.40

466

Mar.

8.4

8.7

8.4

8.4

8.4

8.7 

8.7

8.7

8.4

8.4

8.4

8.9

9.2

9.2

9.5

10

To

9.8

10

10

10

9.8 

9.4

8.6

8.7

7.7 

7.8

7.1

8.1

6.7

TTl

271.2

8.75

538

Apr.

7.3

6.7

5.6

5.1

3.2

3.7 

4.0

5.2

3.8

3.1

2.0

2.3

2.9

3.7

5.4

3.7

6.2

7.6

7.8

8.7

8.7

8.7 

8.9

9.2

879

8.1

8.1

7.6

6.9

6.9

180.0

6.00

357

May

6.0

5.2

4.8

3.8

572

5.4 

4.1

5.3

6.4

6.3

6.4

7.6

7.1

7.1

7.2

7.6

8.4

8.7

9.5

874

8.7

8.4 

8.9

9.5

9.5

9.2 

8.9

9.Z

9.5

9.2

8.9

£30.4

7.43

457

June

9^2.

7.1

5.8

5.7

5.8

5.4 

4.9

5.5

4.8

5.3

3.7

3.6

2.9

3.6

5.2

4.7

3.9

1.2

TTe

2.5

2.8

2.0 

4.0

3.9

3.3

2.4 

4.3

2.7

5.0

6.4

1Z9.4

4.31

257

July

6.4

475

1.8

1.3

1.6

.8

1.3

.8

.7

1.3

1.5

1.5

2.0

3.2

2.7

2.0

.8

.4

O

1.3

£.2

2.7 

2.1

.8

1.0

1.7 

2.0

.8

.5

.6

.6

52.5

1.69

104

Aug.

0.4

.8

1.6

1.6

2.0

2.4

Ts

.5

.6

.3

.5

1.1

y

7T

1.0

.2

.5

1.7

1.9

2.1

1.5

1.2 

.8

.9

1.2

1.2 

1.4

.9

1.5

1.4

1.4

34.0

1.10

67

Sept.

1.5

1.8

2.2

1.2

1.4

1.2 

.8

1.2

1.2

.8

.6

+L.2

.2

.7

.4

.9

1.1

.7

.7

.3

.6 

1.7

.7

.6

.4

.5

.3

.4

1.2

25.6

0.85

51

Calendar year 1956-. Max 1,160 Min 0.4 Mean 21.0 Ac-ft 15,260

Water year 1956-57: Max 10 Mln o.l Mean 4.58 Ac-ft 3,320

Peak discharge (base, 40 cfs). No peak above base.
ARROYO DE LA CRUZ BASIN 187

Arroyo de la Cruz near San Simeon, Calif.

Location. Lat 35°43'25", long 121 "17'00", in Piedra Blanca Grant, on right bank

1.7 miles upstream from mouth and 7 miles northwest of town of San Simeon, San Luis 

Obispo County.

Drainage area. 41.4 sq mi.

Records available. October 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 22 ft (from topographic map).

Average discharge. 7 years, 50.5 cfs (36,560 acre-ft per year).

Extremes. Maximum discharge during year, 3,410 cfs Feb. 24 (gage height, 7.08 ft); no 

flow for several months,

1950-57: Maximum discharge, 17,700 cfs Dec. 23, 1955 (gage height, 12.40 ft), 

from rating curve extended above 7,600 cfs on basis of slope-area determination of 

peak flow; no flow for several months each year.

Remarks. Records fair.

Revisions (water years). WSP 1245: 1951.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

0

0

0

Dec.

(*)

0

0

0

Jan.

0

ff

0

0

0

0

0

0

0

0

0

0

130

~*9.3

5.2

3.7

3.5

3.2

3.5

50

27

11

6.8

4.5 

4.3

23

15

9.3

8.9

8.0

7.6

333.8

10.8

662

Feb.

6.0

5.2

4.5

3.7

3.0

*3.0

3.0

4.4

41

15

8.9

6.4

4.9

4.3

3.2

2.8

2.5

2.1

2.1

*1.9

1.7 2TT

*165

1,170 

 6187

165

84

250

--

2,852.7

102

5,660

Mar.

269

T3Z

88

66

*52

44

38

34

56

56

34

38

39

30

29

40

31

28

25

22

20

18

16

15 

15

13 *12

12

10

10

1,301.5

42.0

2,580

Apr.

9.0

8.5

8.0

7.5

7.0

6.6

6.6

6.2

5.8

5.8

5.8 *5.4

5.4

7.0

9.0

*6.6

51

~58 242

76

88

50

39

*33 

29

25

23

20

17

16

877.2

29.2

1,740

May

15

17

17

14

12

11

11

12

12

10

10

11

9.5

9.5

9.0

*7.5

7.5

460

*355

113

104

66

50

40 

34

31

*30

27

26

24

23

1,578.0

50.9

3,130

June

21

20

18

16

14

14

13

12

12

12

11

10

9.0

8.0

7.5

7.5

6.2

5.8

5.4

5.0

4.3

4.0

3.7

3.7 

3.1

2.8

*2.5

2.5

2.2

1 ,6

257.8

8.59

511

July

1.6

1.8

1.4

1.4

1.2

1.2

1.0

.8

.8

.5

.3

.2

.1

0

0

*0

0

0

0

0

0

0

0

*0 

0

0

0

0

0

0

0

12.3

0.40

24

Aug.

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956 : Max 4,530 Min 0 Mean 46.4 Ac-ft 33,680

Water year 1956-57 : Max 1,170 Min 0 Mean 19.8 Ac-ft 14,310

Peak discharge (base. 1,000 cfs).--Feb. 24 (ll p.m.) 3,410 cfs (7.08 ft); May 18 (9 p.m.) 

3,340 ofs (7.03 ft).

* Discharge measurement or observation of no flow made on this day.
188 SUR RIVER BASIN

Sur River at Big Sur, Calif.

Location. Lat 36°14'45", long 121°46'20", in SW£sw£ sec. 29, T. 19 S., R. 2 E., on right 

bank at downstream side of bridge, 0.4 mile upstream from Post Creek and 2.6 miles 

southeast of Big Sur.

Drainage area. 46.9 sq mi.

Records available. March 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 400 ft (from topographic map). Prior 

Fo Oct. 1, 1951, wire-weight gage at site 0.9 mile downstream at different datum.

Average discharge. 7 years, 97.5 cfs (70,590 acre-ft per year).

Extremes. Maximum discharge during year, 2,010 cfs Feb. 24 (gage height, 7.43 ft); minimum, 9.1 cfs Nov. 4, 5.

1950-57: Maximum discharge, 7,000 cfs Nov. 19, 1950 (gage height, 11.0 ft, site and 

datum then in use, from graph based on gage readings), from rating curve extended above 

1,400 cfs by logarithmic plotting; minimum, 4.5 cfs Oct. 13 -16, 1950.

Remarks. Records good. No regulation or diversion above station. 

Revisions (water years). WSP 1445: 1952(P), 1953(M).

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

10

TT

12

14

14

13

13

14

*13

13

13

13

12

12

12

12

11

11

12

12

12

12

12

12

11

11

12

12

12 

26

24

403

13.0

799

Nov.

11

11

9.6

9TF

9.6

9.6

9.6

10

11

11

11

11

11

*11

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

338.0

11.3

670

Dec.

12

12

12

14

11

23

19

18

17

16

16

16

16

16

15

15

14

14

15

*14

14

14

14

14

14

14

14

14

14

14

14

475

15.3

942

Jan.

14

14

14

15

26

34

24

23

22

21

21

95

221

^

53

4Q

33

29

27

42

36

32

30

28

29

35

29

29

28

26

26

1,184

38.2

2,350

Feb.

24

24

24

23

22

21

22

29

29

26

26

24

24

23

21.

21

21

21

20 *2o

26

28

214

853

915

341

210

190

-

3,242

116

6,430

Mar.

159

135

119

109

*100

94

86

81

83

77

72

73

67

65

71

72

66

63

62

59

56

52

51

49

46

45

*44

43

43

42

40

2,224

71.7

4,410

Apr.

39

38

37

37

36

35

35

35

34

34

33

33" 32

48

37

35

50

167 ~87

82

80

73

67

*63

59

54

51

48

46

45

1,550

51.7

3,070

May

45

57

48

44

43

41

TL

49

43

41

57

57

50

52

48

*44

43

363

450

258

203

165

142

128

114

106

98

91

87

82

78

3,168

102

6,280

June

73

6?

67

65

61

59

58

56

56

56

52

49

47

46

45

44

42

40

39

39

39

38

36

35

35

32

*32

32

32

32

1,406

46.9

2,790

July

32

32

31

28

25

24

24

24

23

24

24

23

23

23

24

23

22

22

22

23

22

22

21

*19

18

18

19

19

18

17

T7

706

Z2.8

1,400

Aug.

17

17

16

16

16

16

16

16

16

16

16

15

14

T4

15

15

15

15

15

15

16

16

15

16

14

14

14

14

14

16

18

478

15.4

948

Sept.

17

16

14

14

14

14

14

14

14

14

14

14

14

14

14

*14

14

14

14

14

14

14

12

T2

13

14

20

20

18

18

440

14.7

873

Calendar year 1956 : Max 1,49O Mln 9.1 Mean 113 Ac-ft 81,970

Water year 1956-57: Max 915 Mln 9.6 Mean 42.8 Ac-ft 30,960

Peak discharge (base. 700 cfs).--Feb. 24 (10:30 p.m.) 2,010 cfs (7.43 ft)j May 18 (8 p. 

1,250 cfs (6.38 ft).

* Discharge measurement made on this day.
SALINAS RIVER BASIN 

Salinas River near Pozo, Calif.

189

Location. Lat 35°18'20", long 120°24'20", in SW^SE^ sec. 18, T. 30 S., R. 15 E., on 

right bank 0.4 mile downstream from highway bridge, 1.5 miles downstream from Pozo 

Creek, 1.7 miles west of Pozo, and 7 miles upstream from Salinas Dam.

Drainage area. 72.5 sq mi.

Records available. July 1942 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,350 ft (from topographic map).

Average discharge. 15 years, 13.1 ofs (9,480 acre-ft per year); median of yearly mean 

discharges, 6.7 cfs (4,850 acre-ft per year).

Extremes. Maximum discharge during year, 40 cfs May 19 (gage height, 3.79 ft); no flow 

Sept. 3-22, 24-30.

1942-57: Maximum discharge, 5,800 cfs Jan. 21, 1943 (gage height, 13.35 ft), from 

rating curve extended above 2,500 cfs on basis of storage increase in Salinas Reservoir and by logarithmic plotting; no flow at times in 1955, 1957.

Remarks. Records fair. No storage or diversion above station. Water is stored in 

Salinas Reservoir below station.

Rating table, water year 1956-57 (gage height, in feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Apr. 6-9, 17-21)

.3

1.9

3.4

3.5

3.6

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.4

.4

.5

*.6

.5

.6

.8

.8

.9

79

.9

.9

.9

.9

.9

.6

.5

.5

.5

.5

.5

.5

.6

.6 *.e

.8

.8

.9

.9

.9

.9

21.7

0..70

43

Calendar yeai

Nov.

0.9

.9

^1

.8

.8

.8

.8

.9

.9

.9

.9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

a. 9

*.9

.9

.9

26.5

0.88

53

Dec.

0.9

.8

.8

.8

.9

.9

1.1

TTT

l.i

.9

.9

.9

.9

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

.9

.9

.9

.9

.9

.9

.9

1.1

1.1

30.4

0.98

60

Jan.

1.1

1.1

1.1

1.2

1.4

1.2

1.1

1.2

 1.2

1.2

1.2

2.5

3J,

1.2

1.1

1.1

.9

.9

1.1

1.6

1.2

1.2

1.2

1.1

1.4

2.5

1.9

1.9

*1.6

1.6

1.6

43.7

1.41

87

Feb.

1.6

T76

1.6

H.2

2.2

2.2

2.2

2.5

H.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

1.9

1.9

5.8

T78

3.5

3.1

3.1

4.8

-

71.4

2.55

142

Mar.

6.8

F73

4.4

3.9

3.5

3.1

2.8

2.8

Z.8

2.5

2.2

2.2

1.9

 1.9

1.9

1.9

1.6

1.6

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

71.5

2.31

142

Apr.

1.4

1.4

1.6

1.6

1.4

1.4

1.4

1.4

*1.4

1.6

1.6

1.4

1.2

1.4

1.2

1.4

*4.6

~5.3 15

3.9

3.5

2.5

2.5

2.2

1.9

1.6

1.4

1.2

1.2

1.2

70.8

2.36

140

May

1.4

1.4

1.4

1.4

1.4

*1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

14

4.4

3.9

2.8

2.5

1.9

1.6

1.6

1.6

*1.9

1.9

1.9

1.9

69.7

2.25

138

June

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

Z.2

a2.2

a2.2

a2.2

a2.2

2.2

1.6

1.9

1.6

1.6

1.2

1.1

1.4

l!4

1.4

54.9

1.83

109

July

172- 1.4

1.1

.8

.6

.6

.6

.6

*7f

.5

.5

.5

.5

.5

.4

.6

.6

.6

.6

.8

.8

.8

.8

.8

.8

.8

.8

.8

.6

.6

21.7

0.70

43

Aug.

0.6

.6

.6

.6

.5

.5

.5

.5

.5

.4

.3

.3

.3

.3

.3

.3

.3

.3

**.3

.3

.3

~

t 2

.2

.2

.2

.2

.2

.2

 2

2

10.6

0.34

21

Sept.

0.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

.1

0

0

0

0

0

0

0

0.4

0.01

0.8

- 1956; Max 1,470 Min 0.3 Mean 14.1 Ac-ft 10,210

Water year 1956-57: Max 15 Min 0 Mean 1.35 Ac-ft 979

Peak discharge (base, 100 cfs). --No peak above base.

Discharge measurement made .on this day. 

** Field estimate made on this day. 

a No gage-height record; discharge stimated on basis of recorded range in stage.
190 SALINAS RIVER BASIN

Toro Creek near Pozo, Calif.

Location. Lat 35°19'20", long 120°25'20", in SW£ sec. 12, T. SO 3., R. 14 E., on right 

bank 50 ft upstream from bridge, immediately upstream from mouth and 3 miles northwest of Pozo.

Drainage area.--9.5 sq mi, approximately.

Records available. June 1942 to September 1957 (low-water records only).

Gage. Water-stage recorder and 90° V-notch weir. Altitude of gage is 1,310 ft (from 

Topographic map).

Extremes. Minimum discharge recorded during year, 0.03 cfs sometime during period 

Aug. 10-18.

1942-57: Minimum discharge recorded, 0.02 cfs at times during some summers.

Remarks. Records fair. Plow partly regulated at swimming pool above station.

Rating table, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used Aug. 29 to Sept. 23, Sept. 25-30)

1.19

l.ZO 

1.Z2 

1.30 

1.38 

1.44 

1.48

0.04 

.05 

.06 

.13 

.23 

.33 

.41

Discharge, in cubic feet per second, water year October 1956 to September 1957

Bay

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

~7o8~ 0.07

.10

*.1Z

.15

.16

.19

.18

.18

.18

.19

.18

.16

.12

.12

.15

.14

.14

.14

.14

.15

.16

.19

.19

*.14

.14

.19

.19

.20

.22

72T

4.88

0.157

9.7

Nov.

O.Z2 

.20

.20

.19

.20

.22

.20

.20

.19

.20

.20

.22

.19

.20

.22

.18

.16

.22

.23 72~3

.20

.23

.20

.15

.14

.2

.2

*.2

.2

.2

5.99

0.200

12

Dec.

.

-

-

Calendar year : Max

Jan.

_

-

-

Feb.

.

-

-

Mar.

.

-

-

Apr.

*

_

*

-

.

-

.

»

-

.

-

.

-

-

_

-

_

_

-

_

-

-

_

-

.

_

_

 0.19

.25

_

_

-

May

0.23 

.22

.20

.19

71?

.22

.23

.25

.23

,23

.31

.28

.25

.28

.25

.20

.22

735" .41

.30

.30

.25

.25

.26

.25

.23

.22

*.23

.23

23

!20

7.69

0.248

15

June

0.14 

.18

.16

.13

.18

.15

.12

.12

.18

.22

.19

.12

.16

.16

.15

.10

.11

.10

.09

.09

.08

.08

.08

.07

.05

.04

757

.09

.09

.09

3.59

0.120

7.1

July

0;09 

08

.08

.08

.08

.08

.08

.08

*.08

.08

.08

.07

.07

.07

.07

.07

.07

.07

.07

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.07

.07

2.39

0.077

4.7

Aug.

~7oT 0.07

.07

.07

.07

.04

.04

.07

.07

.06

.05

.04

.04

.04

.04

.04

.04

.04

**.04

.04

.04

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

1.58

0.051

3.1

Sept.

0,05

!05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

*.05

.05

.05

.06

.07

.07

.08

.08

.09

.08

.10

1.73

0.058

3.4

Min Mean Ac-ft

Water year : Max Min Mean Ac-ft

* Discharge measurement made on this day.

** Field estimate made on this day.

Note. No gage-height record Oct. 1-4, Nov. 26-30, June 29 to July 8, Aug. 10-18; discharge 

estimated on basis of 2 discharge measurements and records for Salinas River near Pozo.
SALINAS RIVER BASIN 191

Salinas Reservoir near Pozo, Calif.

Location (revised) .--Lat 35°20'15" , long 120°30'05", in NW^NWij sec. 8, T. 30 S., R. 14 E., 

at left end of dam on Salinas River, 2 miles upstream from Pilitas Creek and 7.5 miles 

northwest of Pozo.

Drainage area. 111 sq mi.

Records available. December 1941 to September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Corps of 

Engineers). Prior to May 9, 1942, staff gage at same site and datum.

Extremes. Maximum contents during year, 19,600 acre-ft Oct. 1 (elevation, 1,292.00 ft); 

minimum contents, 14,500 acre-ft Sept. 30.

1941-57: Maximum contents, 28,600 acre-ft Mar. 15, 1952 (elevation, 1,304.26 ft); 

minimum, 1,730 acre-ft Nov. 6-10, 1943.

Remarks. Reservoir is formed by concrete-arch dam, outlet closed Dec. 6, 1941. Usable 

capacity, 26,000 acre-ft between elevations 1,220.3 ft (bottom of outlet pipe) and 

1,301.0 ft (spillway crest) above mean sea level. Water diverted at dam into pipeline to small reservoir 10 miles below from which it is pumped to Camp San Luis 

Obispo and city of San Luis Obispo for water supply; water is also released down natural channel of river.

Capacity table, water year 1956-57 (gage height, In feet, 

and usable contents, In acre-feet)

,283

,284

,285

,286

,287

14,300

14,800

15,300

15,900

16,500

1.288

1.289

1.290

1.291

1.292

17,100

17,700

18,300

18,900

19,600

Usable contents, In acre-feet,' at 12 p.m., water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

M*).

(tt)

Oct.

19,600 

19,600

19,600

19,600

19,600

19,600

19,500

19,500

19,500

19,500

19,500

19,500

19,500

1 9 , 400

19,400

19,400

19,400

19,400

19,400

19,400

19,300

19,300

19,300

19,300

19,300

19,200

19,200

19,200 

19,200

19,200

19,200

1,291.39

-400

201

Nov.

19,200 

19,100

19,100

19,100

19,100

19,100

19,100

19,000

19,000

19,000

19,000

19,000

19,000

19,000

18,900

18,900

18,900

18,900

18', 900

18,800

18,800

18,800

18,800

18,800

18 , 800

18 , 000

18,800

18,700 

18,700

18,700

1,290 .70

-500

246

Dec.

18,700 

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18,600

18 . 500

18,500

18,500

18,500

18,500 

18 , 500

18,500

18,500

1,290.32

-200

196

Jan.

18,500 

18,500

18,500

18,500

18,500

18,500

18,500

18,500

18,500

18,500

18,500

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,700

18,800 

18,800

18,800

18,800

1,290.75

+300

129

Feb.

18,800 

18,800

18,700

18,700

18,700

18,700

18,700

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,900

18,900

18,900

18,900

18,900

19,000

1,291.12

+200

123

Mar.

19,000 

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000 

18,900

18 900

18^900

1,291.01

-100

151

Apr.

18,900 

18,900

18,900

18,900

18,900

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18 , 800

18,800

18,800

18,800

19,000

19,100

19,100

19,100

19,200

19,200

19,200

19,200

19,200

19,200

19,200

19,100 

19,100

19,100

1,291.30

+200

209

May

19,100 

19,100

19,100

19,100

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,000

19,100

19,100

19,100

19,100

19,100

19,100

19,100

19,100

19,000

19,000 

19,000

19,000

19,000

1,291.15

-100

202

June

19,000 

19,000

19,000

18,900

18,900

18,900

18,900

18,800

18,800

18,800

18,800

18,800

18,800

18,800

18,700

18,700

18,700

18,700

18,600

18,600

18,600

18 , 600

18,600

18,600

18,500

17 , 900

17 , 200

16 , 800 

16,700

16,700

1,287.36

-2,300

298

July

16,700 

16,700

16,600

16,600

16,600

16,600

16,500

16,500

16,500

16,400

16,400

16,400

16,300

16,300

16,300

16,300

16 , 200

16,200

16,200

16,100

16,100

16,100

16,100

16,000

16,000

16,000

16,000

15,900 

15,900

15,900

15 , 800

1,285. 92

-900

368

Aug.

15,800 

15,800

15,800

15,700

15,700

15,700

15,700

15,600

15,600

15,600

15,600

15,500

15,500

15,500

15,400

15,400

15,400

15,400

15,300

15,300

15,300

15,300

15,200

15,200

15,200

15,200

15,200

15,100 

15,100

15,100

15,100

1,284.57

-700

339

Sept.

15,100 

15,000

15,000

15,000

15,000

15 , 000

15,000

14,900

14,900

14,900

14,900

14,800

14,800

14,800

14,800

14,800

14,800

14,700

14 , 700

14,700

14,700

14,700

14 , 600

14,600

14,600

14,600

14,600

14,600 

14,500

14,500

U83.45

-600

286

Calendar year 1956.................... * -1,000

Water year 1956-57 .................... * -5,100 tt2,750

t Elevation, In feet, at end of month.

* Change In contents, In acre-feet.

tt Diversions, In acre-feet, for municipal supply; furnished by county of San Luis Obispo.
192 SALINAS RIVER BASIN

Salinas River above Pilltas Creek, near Santa Margarita, Calif.

Location. Lat 35°20'55", long 120°30'40", In NE^ sec. 6, T. 30 S., R. 14 E., on downstream side of right bank bridge pier 200 ft upstream from Pilltas Creek and 6 miles 

southeast of Santa Margarita.

Drainage area. 112 sq ml.

Records available. July 1942 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 1,150 ft (from 

topographic map).

Average discharge. 15 years, 12.3 cfs (8,900 acre-ft per year).

Extremes.--Maximum discharge during year, 476 cfs June 26 (gage height, 3.07 ft); no 

flow during several months.

1942-57: Maximum discharge, 2,200 cfs Mar. 15, 1952 (gage height, 4.99 ft), from 

rating curve extended above 740 cfs on basis of computation of peak flow over dam; no 

flow at times in 1944, 1947-57.

Remarks. Records good. Plow regulated by Salinas Reservoir beginning in 1941 (see preceding page). Small amount of water diverted to Camp San Luis Obispo and city of San 

Luis Obispo.

Revisions. WSP 1215: Drainage area.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

0.4 

.5 

.6 

.7 .9

0.8

.9

1.0

1.2

2.8 

7.5

40

1.5 

2.0 

3.0

200

455

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

,1

.2

*.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

*.2

.3

.3

.3

.3

.3

.4

6.9

0.22

14

Nov.

~40.3

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.7

.7

.7

.7

.7

.8

78

.7

.7

.8

.8

.8

*.7

.7

.6

18.4

0.61

36

Dec.

0.6

.6

.6

.6

1.0

.9

.7

.7

.6

.6

.8

.7

.7

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

11.2

0.36

22

Jan.

0.1

.1

.1

.2

.2

.1

.1

**.!

.1

.1

1.0

2.4 ~73

.2

.2

.1

.1

.1

.3

.2

.1

.1

.1

.1

.3

.2

.2

.2

.2

.1

7.8

0.25

15

Feb.

0.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

*.l

M

.1

.1

.1

.1

.1

.1

.1

.1

.1

.9

.3

.2

.2

.2

.3

-

4.5

0.16

8.9

Calendar year 1956: Max 552 Min 0

Mar.

0.5

'.2

.2

.2

.1

TT

.1

.1

.1

*.

3.7

0.12

7.3

Apr.

0.1

£

0

0

0

0

0

0

**0

0

0

0

0

0

0

0

2.5

3.0

.4

.3

.3

.2

.2

.2

.1

.1

.1

.1

.1

.1

7.8

0.26

15

May

0.1

0

0

0

0

*0

0

0

0

0

0

.1

0

0

0

0

0

.1

.3

.2

.2

.1

.1

.1

.1

0

0

0

0

0

0

1.4

0.05

2.8

June

0

C

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

297

437

*252

.8

.3

987.1

32.9

1,960

July

TS" 0.2

.9

1.0

1.2

1.3

1.5

1.6 *T76~

1.6

1.6

1.6

1.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

19.6

0.63

39

Aug.

~~3 0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

_il

is

6.5

0.21

13

Sept.

0.3

.3

.2

72

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.4

.4

*.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

9.9

0.33

20

Mean 12.2 Ac-ft 8,830

Water year 1956-57: Max 437 Min 0 Mean 2.97 Ac-ft 2,150

Discharge measurement or observation of no flow made oh this day. 

* Field estimate made on this day.
SALINAS RIVER BASIN 193

Jack Creek near Templeton, Calif.

Location. Lat 35°34', long 120°48', in Paso de Robles Grant, on left bank 1.4 miles 

upstream from mouth, 1.8 miles northwest of Oakdale school, and 5.6 miles west of 

Templeton, San Luis Obispo County.

Drainage area. 25.4 sq mi.

Records available. October 1949 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 980 ft (from topographic map).

Average discharge. 8 years, 12.2 cfs (8,830 acre-ft per year).

Extremes. Maximum discharge during year, 488 cfs May 18 (gage height, 4.56 ft); no flow 

for several months.

1949-57: Maximum discharge, 5,040 cfs Jan. 25, 1956 (gage height, 9.56 ft), from 

rating curve extended above 1,500 cfs on basis of slope-area determination of peak 

flow; no flow for several months each year.

Remarks. Records good. No regulation. Small diversions above station for irrigation. 

Revisions (water years ). WSP 1395: 1950(M), 1952, 1953(M).

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

2.0

2.1

2.2 

2.4

2.2 

3.7 

6.0

14

2.6 

2.8 

3.2 

3.6

94

171

1.2

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0 

0

0

1.0

0.03

2.0

Dec.

0.1

.1

.1

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1.1.1 .1

.1

.1

.1

.1

.2

T2

.1

.1

.1

.1

.1

.1

3.2

0.10

6.3

Jan.

0.1

.1

.1

.1

*.3

.2

.1

.1

.1

.1

1.1

~.9 22

.8

.6

.5

.5

1.4

2.5

1.2

.8

.7

.8

5.4

3.9

2.6

3.5

4.9

4.9

61.8

1.99

123

Feb.

4.3

3.7

3.7

2.8

2.0

1.8

11

18

8.2

5.7

4.3

*3.7

3.2

2.8

2.2

2.0

1.9

1.6

1.5

T^

27

114

160

37

20

*69

-

516.3

18.4

1,020

Mar.

74

32

21

16

12

9.8

6.6

7.8

7.5

5.7

5.7

6.0

5.2

4.9

5.7

4.7

4.5

3.5

3.0

2.8

2.8

2.5

2.4

2.2

2.1

1.9

1.9

iifl.

1.8

269.7

8.70

535

Apr.

1.8

1.7

1.6

*1.4

1.3

1.3

1.3

1.3

1.2

1.2

1.2

1.2

1.4

1.4

1.3

26

84

25

24

18

14

12

9.4

7.8

6.9

6.0

5.2

4.7

291.9

9.73

579

May

4.5

4.3

3.9

3.4

3.0

2.9

3.2

3.0

2.8

2.9

2.8

2.5

2.8

3.0

2.5

2.1 6F~

3~2~

32

20

15

12

9.8

7.5

6.0

5.4

4.9

4.1

4.1

371.3

12.0

736

June

* .4

.6

.6

.9

.8

.9

.2 

.2

.5

.8

.5

.2

.2

1.2

.6

.6

T3" .1

.2 

.2

.1

.1

.3

.1

.1

.1

.3

.4

.6

.7

29.8

0.99

59

July

0.4

.4

.3

.3

.2

.3

.2

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

.1

.1.1

.1

0

0

0

0

0

0

*0

0

3.0

0.10

6.0

Aug.

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956: Max 1,400 Min 0 Mean 13.7 Ac-ft 9,920

Water year 1956-57: Max 160 Mln 0 Mean 4.24 Ac-ft 3,070

Peak discharge (base, 500 cfs).--No peak above base.

* Discharge measurement or observation of no flow made on this day.
194 SALINAS RIVER BASIN

Salinas River at Paso Robles, Calif.

Location. Lat 35°37'40", long 120°41'05", in Paso de Robles Grant, on downstream side of 

left pier of bridge on State Highway 41 at Paso Robles, San Luis Obispo County, 

3.5 miles upstream from Huerhuero Creek.

Drainage area. 389 sq mi.

Records available. October 1939 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 670.61 ft above mean sea level (levels by 

Corps of Engineers). Prior to June 14, 1951, wire-weight gage at same site and datum.

Average discharge . 18 years, 96.0 cfs (69,500 acre-ft per year); median of yearly mean 

discharges, 50 cfs (36,200 acre-ft per year).

Extremes. Maximum discharge during year, 340 cfs May 19 (gage height, 7.30 ft); no flow 

for several months.

1939-57: Maximum discharge, 14,200 cfs Mar. 9, 1943 (gage height, 16.2 ft), from 

rating curve extended above 6,000 cfs on basis of velocity-area studies and logarithmic 

plotting; no flow during several months in each year.

Maximum stage known, 16.9 ft during flood of Feb. 10-13, 1938.

Remarks. Records fair. Flow regulated by Salinas Reservoir beginning in 1941 (see p. 191). 

Revisions (water years). WSP 981: 1942.

Rating tables, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Mar. 28 to Apr. 11, Apr. 3O 

to May 19, June 4-6)

Oct. 1 to Feb. 28 Mar. 1 to Sept. 30

5.76

5.8

5.9

6.0

6.1

6.2

.1

.4 

1.0 

3.0 

7.0

6.3

6.4

6.5 

6.7 

6.9

14

24

39

84

146

5.3

5.4

112

245

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

C)

O

0

0

Kov.

o

0

0

Dec.

0

o

0

Jan.

0

ff

0

*o

0

0

0

o

0

0

0

**.5

.1

O

0

o

0

o

0

.1

0

0

0

0

.2

0

0

.1

.2

0

0

1.2

0.04

2.4

Feb.

0

0

O

0

0

0

0

.3

.5

.7

.8

.9

.9

1.2

*.9

.9

.9

.9

1.2

1.0

.9

1.0

1.4

S.2

122

*113

66

49

_

370.6

13.2

735

Mar.

*221

14?

103

83

68

52

46

41

38

36

32

31

30

29

28

27

27

26

26

21

18

16

15

14

14

14

14

13

*12

10

8.7

1,255.7

40.5

2,490

Apr.

8.0

7.0

6.2

5.0

4.8

3.4

2.5

1.8

1.0

.5

.2

0

0

0

0

0

o

30

*92 *69~

76

71

62

55

45

41

38

36

32

26

713.4

23.8

1,420

May

20

15

12

9.8

8.4

8.0

*7.0

6.2

6.2

5.4

2.8

2.4

1.9

1.5

1.4

1.6

1.1

2TF

T98~ 217

145

108

85

68

55

45

37

30

*24

19 

17

1,161.2

37.5

2,300

June

13

10

7.7

4.6

2.2

1.0

Oo0

0

0

0

0

o

0

o

0

0

0

0

0

0

o

0

0

0

0

0

31

22

91.5

3.05

181

July

 

7.5

O

2.1

0

o

0

0

0

o

o

0

0

0

0

0

0

0

o

0

o

0

0

o

0

0

o

o

0

0 

0

9.6

0.31

19

Aug.

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956: Max 4,83O Mln 0 Mean 9O.8 Ac-ft 65,950

Water year 1956-57: Max 221 Mln 0 Mean 9.87 Ac-ft 7, ISO

Peak discharge (base, l,loO cfs).--No peak above base.

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.
SALINAS RIVER BASIN 195

Estrella Creek near Estrella, Calif.

Location. Lat 35°42'35", long 120°38'20", in HW^NW^ sec. 36, T. 25 S., R. 12 E., on 

right bank 0.2 mile downstream from mouth of Ranchito Canyon and 1.9 miles northwest 

of Estrella.

Drainage area. 922 sq mi, not including Carrizo Plains. 

Records available. October 1954 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 710 ft (from 

Topographic map).

Extremes. Maximum discharge during year, 15 cfs on or about Dec. 24 (gage height, 2.13ft 

from recorded range in stage); no flow for several months.

1954-57: Maximum discharge, 1,310 cfs Jan. 25, 1956 (gage height, 3.92 ft), from 

rating curve extended above 330 cfs on basis of slope-area determinations at gage 

heights 3.33 and 3.92 ft; no flow for several months each year.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Pumpage from wells along creek for irrigation affects flow at this station.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.9

2.0

2.1

0

1.1

4.6

12

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

13

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

> aO

> a3

36

1.2

71

Calendar year 1956 : Max 442

Jan.

1-

J (*)

4.2

5.2

4.6

4.6

4.6

4.2

4.2

6.4

*S.6

8 .6

8.6

7.1

6.4

5.8

5.2

7.1

6.4

5.8

5.8

5.2

5.8

5.8

5.8

5.2

5.8

7.1

6.4

172.5

5.56

342

Feb.

5.8

5.2

5.2

5.2

4.6

5.2

5.8

5.8

6.4

7.1

7.8

TTS

6.4

6.4

*5.8

5.8

5.8

5.2

5.8

4.6

4.6

5.2

5.8

7.1

6.4

6.4

6.4

7.8

-

167.4

5.98

332

Mar.

7.8

77T

7.8

7.8

7.1

7.1

6.4

5.8

7.1

6.4

5.8

5.8

5.8

5.8

5.2

5.2

5.2

5.2

5.2

4.2

3.7

3.7

3.7

3.7

*3.7

3.4

3 .4

3.4

3.4

3.4

3.4

162.7

5.25

323

Apr.

3.0

3.0

2.6

2.3

2.0

1.7

1.4

1.4

1.4

1.1

1.1

1.4

1.7

1.4

1.4

1.4

1.7

3.4

3.0

4.2

4.6

5.2

57?

4.6

4.2

3.4

2.6

2.3

2.0

1.7

76.4

2.55

152

May

1.4

T7i!s

.6

.6

.6

*.6

.6

.6

.6

.6

.6

.6

.8

.8

.8

.6

.8

1.1

1.1

.8

.6

.6

.8

.6

.4

.2

.2

**.!

0

"

19.6

0.63

39

June

(*)

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

(*)

0

0

0

Mln 0 Mean 6.31 Ac-ft 4,580

Water year 1956-57: Max 8.6 Mln 0 Mean 1.74 Ac-ft 1,260

Peak discharge (base, 200 cfs). No peak above base.

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.

a No gage-height record; discharge estimated on baals of recorded range In stage and records for 

nearby stations.

510529 O -59 - 14
196 SALINAS RIVER BASIN

Nacimiento River near Bryson, Calif.

Location. Lat 35°48'06", long 121°06'50", in NW£ sec. 33, T. 24 S., R. 8 E., on right 

bank 0.6 mile upstream from Turtle Creek, 1.6 miles west of Bryson, and 10 miles southwest of Lockwood.

Drainage area. 140 sq mi.

Records available. October 1955 to September 1957. Records for February to April 1901, 

published in WSP 66 and 75, have been found to be unreliable and should not be used.

Gage. Water-stage recorder. Altitude of gage is 860 ft (from topographic map).

Extremes. Maximum discharge during year, 7,540 cfs Feb. 24 (gage height, 12.60 ft); no 

flow for several months.

1955-57: Maximum discharge, 30,300 ofs Dec. 23, 1955 (gage height, 24.63 ft), from 

rating curve extended above 13,000 cfs on basis of slope-area determination of peak 

flow; no flow for several months each year.

Remarks. Records good. No storage or diversion above station. 

Revisions. See Records available.

Rating tables, water year 1956 .>7 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used July 13 to Aug. 2)

Oct. 1 to Feb. 24 Feb. 24 to Sept. 3O

3.85

3.9

4.0

4.1

4.2

4.3 

4.5

1.7 

5.5

4.7 

5.0 

5.5 

6.0 

7.0 

8.0 

10.0

95

165

340

560

1,110

1,840

4,160

1.5 

3.0 

5.0

4.4 

4.6 

4.8 

5.0 

6.0

11

27

70

135

560

Note. Same as preceding 

table above 6.0 ft.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

24 

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

C)

0

0

0

Nov.

0 

O

0

0

o

0

o

0

o

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0 

0

o

0

0

0

0.1

0.1

0.003

0.2

Dec.

2-f.'i

.1

.9

1.2

2.0

2.0

2.0

2.0

1.7

1.7

2.0 

2.3

2.6

2.3

2.3

2.6

2.6

2.6

2.3

2.3

2.3

2.3 

2.3

2.0

2.0

2.3

2.3

2 3 2 3

57.9

1.87

115

Jan.

2^0 

2.0

2.0

*2.0

5.0

9.0

9.0

5.0

3.0

2.6

2.6

591

1,700 

209

97

63

48

38

31

86

93

62

48

40 

36

94

67

55

57

58 

55

3,572.2

115

7,090

Feb.

52

48

50

45

40

38

35

48

62

50

*45

40

36 

35

31

28

27

24

22

20

18

55

845

3,780 

*2,760

759

462

561

-

9,986

357

19,800

Mar.

.515. 

380

299

254

210

178

152

132

142

142

107

104

97 

88

88

114

94

85

*79

70

60

54

49

44 

41

39

37

34

30

29

27

3,774

122

7,490

Apr.

27 

26

25

23

23

23

22

22

22

21

21

21

20 

29

*42

30

167

545

^50

210

218

163

135

118 

100

85

73

65

54

49

2,630

87.7

5,220

May

47 

52

54

43

39

37

36

37

*37

32

32

34

29

30

29

26

25

128

696

299

250

194

156

128 

107

91

76

65

60

52

44

2,964

95.6

5,880

June

33.

34

30

27

25

24

22

22

22

26

22

19

17

16

15

15

13

13

12

11

11

10

9,6

*9.2 

8.2

7.5

7.0

6.8

6.5

6.8

506.6

16.9

1,000

July

frf

5.5

5.0

4.6

4.4

4.0

3.8

3.2

3.0

2.7

2.4

2.1 

2.0

1.8

1.8

1.5

1.5

1.4

1.4

1.4

1.5

1.4

1.3 

1.1

.9

.7

.6

.4

.4

-JL

74.8

2.41

148

Aug.

0.2

** . 1

0

o

0

o

0

0

0

0

0

o

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

.3

0.01

0.6

Sept.

(*)

0

0

0

Calendar year 1956 : Max 6,400 Min- O Mean 127 Ac-ft 91,990

Water year 1956-57: Max 3,780 Min 0 Mean 64.6 Ac-ft 46,740

Peak discharge (base, 4,000 cfs).--Jan. 13 (1 a.m.) 4,30O cfs (10.12 ft); Feb. 24 (7 p.m.) 7,540 of 

(12.60 ft).

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.
SALINAS RIVER BASIN 197

Nacimiento River near San Mlguel, Calif.

Location.--Lat 35°47'00", long 120°47'24", in SE£ sec. 4, T. 25 S., R. 11 E., on right 

bank 4 miles upstream from mouth and 5.5 miles northwest of San Miguel.

Drainage area. 354 sq mi.

Records available. October 1939 to December 1957 (discontinued).

Gage. Water-stage recorder and concrete control. Datum of gage is 555.48 ft above mean 

sea level (levels by Corps of Engineers).

Average discharge. 18 years, 262 cfs (189,700 acre-ft per year); median of yearly mean 

discharges, 180 cfs (130,000 acre-ft per year).

Extremes. 1956-57: Maximum discharge during year, 535 cfs Mar. 15-19 (gage height, 

1.64 ft); no flow for several months.

1957: No flow during period October to December.

1939-57: Maximum discharge, 58,600 cfs Dec. 23, 1955 (gage height, 13.15 ft, from 

floodmarks), from rating curve extended above 23,000 cfs. on basis of slope-area determination of peak flow; no flow for several months in each year except possibly 1942-44.

Remarks. Records good. No flow Oct. I to Dec. 31, 1957. Flow regulated by Nacimiento 

Reservoir beginning in November 1956 (usable capacity, 340,000 acre-ft). No large 

diversion.

Revisions (water years). WSP 1395: 1946-47, 1949-50.

Rating table, water year 1956-57 (gage height, in feet,

and discharge, in cubic feet per second)

(Shifting-control method used Apr. 5-8, 17, 18,

Apr. 30 to May 13, June 7-21)

.8

3.0

9.0

21

1.0 

1.2 

1.5 

2.0

66

155

365

880

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

( )

(»)

0

0

0

Nov.

(*)

0

0

0

Dee.

0

0

0

Jan.

0

0

0

0

0

0

0

 0

0

0

0

.4

0

0

0

0

0

0

0

.2

0

0

0

0

.2

0

0

.1

*.5 o 

0

1.4

0.05

2.8

Feb.

Q

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

57

140

108

-

305

10.9

605

Mar.

45

264

264

264

264

264

*264

293

283

169

293

365

381

525

555

535

535

535

*535

525

515

505

505

505

505

485

475

475

475

Apr.

455.

*455

445

334

41

97

18

2.6

0

0

0

0

0

0

0

0

2.4

»*12

124

215

215

222

250

325

349

465

465

465

421

465 o^j.

465

12,513

404

24,820

5,719.0

191

May

64

135

101

21

7.2

5.1

*3.7

3.0

2.7

2.4

2.4

2.2

12

97

105

71

5.1

1.9

1.1

.7

.4

.1

,1

6"0

0

68

465

475 465"

*465

2,582.1

83.3

11,340 5,120

June

465

475

475

465

465

455

246

16

7.2

4.6

3.0

2.2

1.9

1.7

1.7

1.3

 1.1

.7

.3

.2

.4

0

0

0

*0

0

0

0

0

0

3,088.3

103

6,130

July

0

0

0

Aug.

(»)

0

0

0

Sept.

(»)

0

0

0

Calendar year 1956: Max 13,500 Mln 0 Mean 222 Ae-ft 160,900

Water year 1956-57: Max 535' Mln 0 Mean 66.3 Ac-ft 48,020

« Discharge measurement or observation of no flow made on this day. 

** Field estimate made on this day.
198 SALINAS RIVER BASIN

San Antonio River at Pleyto, Calif.

Location. Lat 35°51'55", long 120°59'30", in Pleyto Grant, on downstream side of left 

abutment of highway bridge at old townsite of Pleyto, Monterey County, 1.1 miles downstream from Copperhead Creek and 15 miles west of Bradley.

Drainage area. 282 sq mi.

Records available. April to September 1922, December 1929 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 720 ft (from topographic map). Prior 

 To May 10, 1939, at datum 1.00 ft higher.

Average discharge. 27 years (1930-57), 83.3 cfs (60,310 acre-ft per year); median of 

yearly mean discharges, 50 cfs (36,200 acre-ft per year).

Extremes. Maximum discharge during year, 2,500 cfs Feb. 25 (gage height, 4.10 ft), no 

flow for several months.

1929-57: Maximum discharge, 14,500 cfs Dec. 23, 1955 (gage height, 5.84 ft), from 

rating curve extended above 8,000 cfs; no flow for several months each year except 

possibly 1942-43.

Remarks. Records fair. Small diversions above station for irrigation. 

Revisions (water years) . WSP 1395: 1938, 1945(M), 1952(M).

Rating tables, water year 1956-57 (gage height, in feet, and discharge,

in cubic' feet per second) 

(Shifting-control method used July 11-14)

Oct. 1 to Jan. 13 

0.3 0

.5 

2.2 

5.6

O.Z6 

.3

Jan. 14 to Sept. 30

1.0 

1.3 

1.6 

2.0 

Z.5 

3.0 

4.0

1.0

3.4

6.0

9.0

14

20

41

100

190

360

6ZO

1,010

2,340

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

l

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

Z2

Z3

24

Z5

Z6

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(»)

(»)

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.Z

.2

.3

.4

.5

.6

.8

.9

1.0

1.0

l.Z

XT?

1.2

9.6

0.32

19

Dec.

1.2

1.2

1.4 rr

1.4

l.Z

1.2

1.0

1.0

1.0

.8

.5

.5

.5

.4

.4

.4

[4

.4

.4

.4

.4

.4

.4

.4 

.4

Zl.l

0.68

42

Jan.

0.4

.4

.4

*.il

.8

.5

.5

.4

.3

.3

.4 i.e

9.4

49

ZZ

13

9.4

7.8

7.5

8.1

8.1

10

10

9.4

9.4

10

11

12

»14

14 

13

253.6

8.18

503

Feb.

14

14

14

14

14

14

14

14

16

21

*Z1

ZO

19

19

18

18

17

16

16

15

15

16

24

391

*1.6ZO

*550

360

270

3,574

128

7,090

Calendar year 1956: Max Z.4EO Min 0

Mar.

Z62

Zlff

186

169

162

140

140

125

1Z5

115

108

95

88

82

75

73

71

67

*59

59

54

46

41

40

37

36

34

33

31

30 

29

2,830

91.3

5,610

Apr.

28

27

27

25

24

24

24

22

20

20

21

21

21

22

*22

22

23

26

67

59

61

73

57

54

49

41

36

31

27

24

1,000

33.3

1,980

May

22

19

19

18

15

14

14iz

*12

12

12

12

12

12

12

12

12

12

39

93.

84

69

63

59

55

52

47

44

43

39

975

31.5

1,930

June

30

26

23

20

16

14

13

12

12

13

12

10

9.4

8.7

8.7

7.8

7.2

6.9

6.2

5.7

5.5

4.9

4.4

*3.6

2.9

2.1

1.9

1.7

TT

1.7

292.1

9.74

579

July

1.4

TT4

1.4

1.4

1.2

1.0

.8

.6

.6

.3

2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

10.1

0.33

20

Aug.

(*)

0

0

0

Sept.

(»)

0

0

0

Mean 86.1 Ac-ft 62,500

Water year 1956-57: Max 1,6ZO Min 0 Mean Z4.6 Ac-ft 17,770

Peak discharge (base, 470 cfs). Feb. 25 (2 a.m.) 2,500 efs (4.10 ft). 

* Discharge measurement or observation of no flow made on this day.
SALINAS RIVER BASIN 199

Salinas River near Bradley, Calif.

Location.--Lat 35°55 I 40", long 120°52'00", in NEir sec. 15, T. 23 S., R. 10 E., on left 

bank 6 miles northwest of Bradley and 7 miles downstream from San Antonio River.

Drainage area.--2,522 sq mi.

Records available.--December 1948 to September 1957.

Gage .--Water-stage recorder. Altitude of gage is 450 ft (from topographic map).

Average discharge.--8 years (1949-57), 351 cfs (254,100 acre-ft per year).

Extremes. Maximum discharge during year, 1,840 cfs Feb. 25 (gage height, 5.58 ft); no 

flow for many days in August and September.

1948-57: Maximum discharge, 26,800 cfs Jan. 15, 1952 (gage height, 12.35 ft); no 

flow at times in 1951, 1954-55, 1957.

Remarks. Records good above 100 cfs and poor below. Flow partly regulated by Salinas 

Reservoir (see p. 191), and Nacimlento Reservoir beginning in November 1956 (usable 

capacity, 340,000 acre-ft). Several small diversions above station.

Revisions (water years). WSP 1285: 1950.

Rating table, water year 1956-57 (gage height, In feet, and discharge,

in cubic feet per second.) 

(Shifting-control method used May 1-21, Aug. 1O to Sept. 3O)

3.02

3.1

3.2

3.3

.3 

2.4 

8.0

3.4

3.5

3.6 

3.8 125

4.0 

4.5 

5.0

225

590

1,130

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

_3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.5

2.9

3.3

4.0

*6.1

3.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.4

2.9

2.4

2.0

2.0

2.4

4.0

2.9

8O.4

2.59

159

Nov.

2.9

2.4

2.O

1.6

1.6

2.0

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

4-i£

2.9

2.9

1.6

1.6

1.6

1.6

1.6

2.0

2.4

1.6

1.3

T^

56.5

1.88

112

Dec.

1.3

T^

1.3

2.0

5.5

5.5

4.0

4.0

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

2.9

2.4

2.4

2.4

1.6

1.6

2.0

1.3

2.0

5.5

6.7

6.7

7.3

103.7

3.35

206

Jan.

7.3

7.3

6.7

8^

20

13

1O

*9.5

9.5

8.7

9.5

26

38

30

23

20

18

17

16

23

20

16

15

15

18

20

17

18

18

16

15

5O8.5

16.4

1,O1O

Feb.

14

12

11

TT

12

15

*18

19

20

23

26

30

30

30

28

24

21

20

18

15

15

14

26

33

1.040

*968

509

413

-

3,415

122

6.77O

Mar.

311 436-

581

545

518

484

452

*444

536

385

399

500

509

590

650

650

650

650

660

*660

64O

64O

63O

650

630

62O

62O

610

590

572

563

17,375

560

34,460

Apr.

545 536"

509

*500

321

279

225

156

134

121

110

95

60

28

30

SB- 21

57

70

259

298

298

304

364

371

460

518

536

509

5OO

8,249

275

16.36O

May

3O4

249

249

170

114

85

76

63

*52

50

40

35

24

38

92

118

82

50

4O

45

188

243

231

208

176

166

152

278

*500

518

527

5,163

167

10.24O

June

527

518

527

527

527

527

503

318

220

181

114

43

21

15

11

8.0

14

6.7

111

6.1

7.3

7.3

8.0

7.3

*8.0

8.0

20

207

103

66

5,061.8

169

10.04O

July

63

52

50

52

55

50

45

35

23

20

19

18

17

16

15

14

12

9.5

11

16

15

15

17

23

35

38

26

15

11

8.7

7.3

803.5

25.9

1,590

Aug.

10

17

21

9.5

4.0

3.4

3.4

 1.6

15

26

28

TS

4.O

8.7

.4

.1

.1

O

0

0

0

0

o

0

o

o

0

o

o

0

.1

175.3

5.65

348

Sept.

0.1

.1

O

.9

5.5

q c

ft! 7.3

8.O

3.4

O

.6

5.5

6.1

1.0

O

.1

2.4

2.4

*2.0

.9

.3

O

2.0

4.0

.6

.9

1.6

3.4

2.4

80.5

2.68

160

Calendar year 1956: Max 16,.4OO Mln - Mean 407 Ac-ft 295,800

Water year 1956-57: Max 1,O4O Min o Mean 113 Ac-ft 81,460

Peak discharge (base, 4,OOP cfs). No peak above base. 

* Discharge measurement made on this day.
200 SALINAS RIVER BASIN

Arroyo Seco near Soledad, Calif.

Location. Lat 36°16'50", long 121°19'20", in sec. 16, T. 19 S., R. 6 E. , on left bank 

Just downstream from bridge, 1.5 miles downstream from Vaquero Creek and 10 miles 

south of Soledad.

Drainage area. 241 sq mi.

Records available.--November 1901 to September 1957.

Gage. Water-stage recorder. Datum of gage is 344.20 ft above mean sea level (Corps of 

Engineers bench mark). Prior to June 16, 1929, staff gage and June 16, 1929, to 

Dec. 2, 1941, water-stage recorder, at site 1 mile upstream at different datum.

Average discharge. 55 years (1902-57), 165 cfs (119,500 acre-ft per year); median of 

yearly mean discharges, 124 cfs (89,800 acre-ft per year).

Extremes. Maximum discharge during year, 4,950 cfs Feb. 25 (gage height, 8.36 ft), no 

flow Aug. 19 to Sept. 30.

1901-57: Maximum discharge, 27,700 cfs Dec. 23, 1955 (gage height, 14.30 ft), from 

rating curve extended above 12,000 cfs on basis of slope-area determination of peak 

flow; no flow at times during several years.

Remarks. Records good. No storage or large diversion above station. 

Revisions (water years). WSP 881: 1902-9 (yearly summary only).

Rating table, water year 1956-57 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 31 to Jan. 13)

0.9

1.0

1.1

1.2

1.3

1.4

0

.3

1.0

2.4

5.2

10

29

71

2.5 

3.0

4.0 

5.0 

6.0 

7.0 

8.0

134

228

444

840

1,540

2,660

4,220

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-it

Oct.

0.9

T7T

2.0

2 .

3.

4.

4.

4.

4.

5.

6.

6.

5.

5.

*5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

6.

8.1

8.1

7.6

8.1

ii'

174.1

5.62

345

Nov.

20

TT

8.6

.6

.1

.6

.1

.1

.1

.1

.1

.1

.6

.6

.5

9.5

11

12

12

13

12

12

12

12

12

12

12

12

12 

12

305.7

10.2

606

Dec.

12

12

13

13

14

22

2T

*17

15

14

14

14

13

13

13

12

12

12

12

12

12

12

12

13

13

13

13

13

12 

12

12

417

13.5

827

Jan.

12

IF

12

12

14

16

21

16

14

14

13

31

1.240

241

114

77

60

50

45

57

88

58

50

46

43

59

56

48

48 

45

42

2,654

85.6

5,260

Feb.

*42

41

41

38

*37

35

34

38

49

45

42

40

39

37

35.

34

33

33

32

31,

32

37

778

2,210

2.690

828

458

396

8,185

292

16,230

Calendar year 1956: Max 3,490 Min 0.9

Mar.

*356

294

256

230

204

182

163

148

147

137

124

117

116

108

105

120

108

105

99

*94

89

85

81

77

73

70

69

66

63

63

60

4,009

129

7,950

Apr.

*57

54

52

50

48

47

46

45

44

44

43

41

4T

49

72

49

51

307

T92

142

184

142

123

112

102

93

85

81

73

70

2,539

84.6

5,040

May

*67

70

75

62

59

56

53

54

59

53

54

64

57

54

59

52

49

74

967

354

286

226

190

163

142

124

112

103

97

91

*85

4,011

129

7,960

June

79

72

70

67

62

59

58

56

56

61

56

50

47

45

44

43

40

38

37

35

34

32

30

28

25

23

20

19

19

19

1,324

44.1

2,630

July

20

19

18

16

14

12

10

9.5

9.5

8.6

*8.6

8.1

8.1

8.1

7.6

7.6

7.1

6.2

5.7

5.7

5.2

5.2

5.2

5.2

5.2

4.6

4.4

3.5

3.5 

3.2

2.7

257.3

8.30

510

Aug.

2.1 *TT¥

1.6

1.3

.7

.6

.4

.4

.4

.6

.5

.4

.2

.2

.2

.1

.1

.1

0o0

0

0

0

0

0

0

0

0 

0

0

11.7

0.38

23

Sept.

(*)

0

0

0

Mean 149 Ac-ft 108,200

Water year 1956-57: Max 2,690 Mln 0 Mean 65.4 Ac-ft 47,380

eak discharge (base. 1,380 cfs). Jan. 13 (3:30 a.m.) 2,730 cfs (7.12 ft); Feb. 25 (4 a.m.) 

4,950 cfs (8.36 ft); May 19 (1 a.m.) 2/400 cfs (6.80 ft).___________________________

* Discharge measurement or observation of no flow made on this day.
SALINAS RIVER BASIN 201

Salinas River near Spreckels, Calif.

Location. Lat 36°37 I 50", long 121°40'40", in El Toro Grant, on right bank 80 ft upstream 

from bridge on Salinas-Monterey highway, 0.5 mile upstream from Toro Creek, 2 miles 

west of Spreckels, Monterey County, and 4 miles south of Salinas.

Drainage area. --4. 231 sq mi.

Records available. --January 1900 to August 1901, December 1929 to September 1957.

Gage. --Water-stage recorder. Datum of gage is 22.64 ft above mean sea level, adjustment 

of 1912. 1900-1901, May 10 to July 29, 1940, staff gage at same site at different 

datum. Since Mar. 17, 1941, supplementary wire-weight gage on highway bridge 80 ft 

downstream at same datum.

Average discharge . --27 years (1930-57), 465 cfs (336,600 acre-ft per year); median of 

yearly mean discharges, 200 cfs (145,000 acre-ft per year).

Extremes. --Maximum and minimum discharge during year not determined.

1529-57: Maximum discharge, 75,000 cfs Feb. 12, 1938 (gage height, 25.0 ft), from 

rating curve extended above 26,000 cfs on basis of velocity-area studies, verified by 

slope-area determination; maximum gage-height, 26.85 ft Jan. 16, 1952, from floodmarks; 

no flow at times in 1929-40.

Remarks . Records poor. Small diversions above station for irrigation. 

sents waste water from Spreckels sugar refinery and sewage.

Low flow repreDischarge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

9

10

11

12

13

1415'

16

17

18

19

20

21

J

24

25

26

27

28

29

30

31

Total

Mean

Ac-rt

Oct.

(**)

> el. 5

46.5

1.5

92

Nov.

(**)

> e2

------

60

2

119

Dec.

> e8

(*)

248

8

492

Jan.

(*)

> e4

(*)

124

4

246

Feb.

(*)

> e3

(*)

-

84

3

167

Mar.

(*)

> e2

(*)

62

2

123

Apr.

> el

(**)

30

1

60

May

> eo.5

(**)

15.5

0.5

31

June

> el

(*")

30

1

60

July

(**)

> e2

(*")

62

2

123

Aug.

{* )

> e2

62

2

123

Sept.

> el

(**)

30

1

60

Calendar year 1956: Max 19.OOO Mln - Mean 372 Ac-ft 269,700

Water year 1956-57: Max - Mln - Mean 2.34 Ac-ft 1,700

Peak discharge (base, 270 cfs).--No peak above base.

* Discharge measurement made pn this day. 

»* Field estimate made on this day.

e Stage-discharge relation Indefinite; monthly mean discharge estimated on basis of 7 dlschar 

measurements and 9 field estimates made during year.
202 PAJARO RIVER BASIN

Pacheco Creek near Dunneville, Calif.

Location. Lat 36°58'5l", long 121°22'47", in Ausaymas y San Felipe Grant, on pier of 

private road bridge near right bank, 3.3 miles northeast of Dunneville, Santa Clara 

County.

Drainage area. 146 sq mi.

Records available. January 1940 to September 1957.

Gage. Staff gage read twice daily with additional readings during high water. Altitude 

of gage is 240 ft (from topographic map). Prior to Nov. 17, 1950, at datum 2.00 ft 

higher.

Average discharge. 17 years, 33.4 cfs (24,180 acre-ft per year).

Extremes. Maximum discharge observed during year, 103 cfs Feb. 25; no flow for several 

months.

1940-57: Maximum discharge, 12,600 cfs Dec. 23, 1955 (gage height, 18.6 ft, from 

floodmarks), from rating curve extended above 820 cfs on basis of slope-area determination of peak flow; no flow at times.

Remarks. Records fair. Detention reservoir (capacity, 6,150 acre-ft) several miles 

above station stores floodwater for release during low flow. Small diversions above 

station for irrigation.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, in cubic feet per second)

1.6

1.7

1.8

1.9

.6 

1.8 

3.5

2.0

2.1

2.2

5.4

9.5

15

2.3 

2.5 

2.8

24

51

105

Discharge, in cubic feet pe econd, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-It

Oct.

3.9

377

3.5

3.2

3.2

2.8

2.5

*2.5

2.5

2.1

2.1

2.0

2.0

1.9

1.8

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.3

1.3

1.3

1.3

1.2

1.1

1.1

. 8

61.8

1.99

123

Nov.

~75 O.B

.8

.6

.6

.6

.6

.5

.5

.5

.4

.1

*00"

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

6.8

0.23

13

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

^5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

95

23

18

18

-

154

5.5

305

Mar.

22

IS

11

8.7

8.3

7.4

7.4

7.0

6.6

7.4

7.4

6.6

6.2

5.4

4.8

4.4

4.1

3.7

3.3

3.0

2.5

2.0

1.7

275

2.3

**2.6

2.8

3.0

3.3

3.7

3.7

179.3

5.78

356

Apr.

3.7

TT7

3.7

4.3

4.6

5.0

5.2

5.2

5.2

5.2

5.2

5.8

5.8

5.8

5.2

5.2

5.4

7.0

6.6

6.6

5.5

7.4

*7.4

7.4

8.3

8.3

8.3

7.0

6.6

5.4

177.1

5.90

351

May

5.4

5.4

6.2

6.2

6.2

6.2

6.2

6.2

6.2

5.5

5.5

6.6

5.8

5.8

*5.2

5.2

5.2

9.1

20

20

28

14

8.7

5.4

4.3

2.8

3.2

2.8

2.6

370

3.7

228.8

7.38

454

June

4.4

6.2

6.2

6.2

5.8

6.6

6.6

7.4

8.3

9.1

9.1

8.3

8.3

7.4

7.4

7.4

7.4

7.4

7.0

7.0

7.0

7.0

7.0

6.2

6.2

*6.2

6.2

5.8

5.8

5 . 8

206.7

6.89

410

July

5.4

37T

5.0

5.0

4.4

4.4

4.1

3.5

3.5

3.5

3.2

3.0

3.0

2.6

2.5

2.5

2.1

2.1

2.0

2.0

1.7

1.4

**1.3

1.3

1.1

.8

.8

.4

.2

0

(J

78.2

2.52

155

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 3,710 Mln 0 Mean 54.3 Ac -ft 39,410

Water year 1956-57: Max 95 Mln 0 Mean 2.99 Ac-ft 2,170

Discharge measurement or observation of no flow made on this day. 

* Field estimate made on this day.
PAJARO RIVER BASIN 203

Llagas Creek near Morgan Hill, Calif.

Location. Lat 37°06'50", long 121 "41'25", in Las Uvas Grant, on right bank 500 ft 

upstream from Llagas Avenue Bridge, 0.3 mile upstream from small tributary, and 

2.3 miles west of Morgan Hill, Santa Clara County.

Drainage area. 19.6 sq mi.

Records available. October 1951 to September 1957.

Gage . Water-stage recorder and concrete control. Altitude of gage is 445 ft (from 

topographic map).

Average discharge. 6 years, 14.8 cfs (10,710 acre-ft per year).

Extremes. Maximum discharge during year, 25 cfs Oct. 1, 2 (gage height, 1.43 ft); minimum, 0.4 cfs Jan. 18, 19.

1951-57: Maximum discharge, 2,760 cfs Jan. 12, 1952 (gage height, 8.18 ft), from 

rating curve extended above 1,100 cfs by logarithmic plotting; no flow at times most 

years.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Flow regulated by Chesbro Reservoir (formerly Llagas Reservoir), capacity, 7,500 acreft beginning in 1955.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

0.9

1.0

1.1

0.4 

1.6 

4.2

1.2

1.3 

1.5-

B.5 

14 

31

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

^5

15

22

20

20

20

9.1

4.2

3.6

3.5

3.3

3.6

3.3

3.3

3.3

3.3

3.6

3.3

3.3

3.3

3.6

3.6

3.6

3.9

4.2

4.6

4.6

4.6

5.0

5.0

5.0

223.5

7.21

443

Nov.

ft!

4.2

4.2

3.9

*4.2

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.2

4.2

4.2

3.9

3.9

3.9

3.6 JTB3.6

3.6

3.6

3.6

3.6

3.6

3.9

3 9

123.8

4.13

246

Dec.

frt

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.6

3.6

3.6

3.6

3.6

3.6

2.7

2.0

*2.7

3.0

2.4

2.4

2.0

2.0

l.B

1.8

1.6

1.4

1.4

JUi

1.2

90.1

2.91

179

Jan. -

1.2 

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.4

1.4

l.B

1.4

1.0

.9

.8

.5

.4

74

.5

1.6

2.0

*2.0

2.2

2T5

1.8

1.8

1.6

1.6

1.6

1.4

40.9

1.32

81

Feb.

1.4

1.6

l.B

1.6

l.B

1.8

1.8

1.6

1.6

1.6

1.6

1.4

1.2

1.2

1.1

1.0

.9

79

2.5

*2.4

1.4

1.6

2.0

3.3

3.3

3.3

3.6

376

-

52.9

1.89

105

Mar.

3.6 

3.6

3.3 376"

4.6

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.6

4.6

4.6

4.6

4.6

4.6

4.2

4.6

6.2

10

T5

10

10

10

10

10

10

10

184.9

5.96

367

Apr.

^.7

9.7

9.1

97T

9.1

9.1

9.7

9.7

9.7

9.

9.

9.

9.

9.

9.

9.

9.7

9.7

9.7

9.7

9.7

9.7

9.7

9.7

9.7

9.7

9.7

9.7

*9.7

287.1

9.57

569

May

10 

10

10

10

9.7

10

10

10

9.7

9.7

10

10

10

11

11

11

11

14

17

17

17

17

16

15

14

14

14

14

14

14

*14

384.1

12.4

762

June

14 

14

13

10

10

14

19

19

19

19

19

19

18

18

18

18

18

18

18

18

18

18

16

13

7.0

5.4

3.9

3.9

4.2

3 .6

426.0

14.2

845

July

*f

3.6

3.6

3.6

3.6

3.6

3.3

3.0

2.7

2.7

2.7

2.7

2.7

3.0

3.0

2.7

3.0

3.0

3.0

3.0

2.7

2.7

2.7

2.4

2.7

2.4

274

2.4

2.4

2.4

91.2

2.94

181

Aug.

3.0 

3.0

3.0

3.0

2.7

*2.7

2.7

2.7

3.3

4.2

3.9

3.6

> a2.5

85. 3

2.75

169

Sept.

> a2.5

(*)

2.7

2.4

2.4

2.7

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.0

2.0

2.0

1.6

1.6

1.6

68.5

2.28

136

Calendar year 1956: Max 251 Mln 1.1 Mean 22.4 Ac-ft 16,260

Water year 1956-57: Max 25 Mln 0.4 Mean 5.64 Ac-ft 4,080

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and recorded 

range in stage. ,
204 PAJARO RIVER BASIN

Uvas Creek near Morgan Hill, Calif.

Location.--Lat 37°04'00", long 121°41'30", in Las Uvas Grant, on right bank 500 ft

upstream from Uvas Dam, 0.6 mile dovmstream from Eastman Canyon, and 4.8 miles southwest of Morgan Hill, Santa Clara County.

Drainage area.--30.2 sq mi.

Records available.--December 1930 to April 1957 (discontinued).

Gage. Water-stage recorder. Altitude of gage is 390 ft (from topographic map).

Average discharge. 25 years (1931-56), 36.1 cfs (26,140 acre-ft per year); median of 

yearly mean discharges, 28.0 cfs (20,300 acre-ft per year).

Extremes.--Maximum discharge during period, 1,040 cfs Feb. 24 (gage height, 6.42 ft); no

 flow Oct. 1-11.

1930-57: Maximum discharge, 10,300 cfs Dec. 23, 1955 (gage height, 14.3 ft, from 

floodmarks), from rating curve extended above 4,600 cfs on basis of slope-area 

determination of peak flow; no flow at times in 1931-34, 1943-46, 1956.

Remarks.--Records good except those for periods of no gage-height record, which are poor. 

No storage or large diversion above station. Records of chemical analyses for the 

water year 1957 are given in WSP 1523.

Rating table, Oct. 1, 1956, to Apr. 16, 1957 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Feb. 25 to Apr. 16)

2.36

2.4

2.5

2.6

2.7

.2

.7

1.4

2.2

2.8

2.9

3.0 

3.2

3.1

5.3

10

3.5

4.0 

5.0 

6.0

164

460

850

Discharge, in cubic feet per second, October 1956 to April 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

0

0

0

0

0

0

.3

.6

.7

.7

.8

.8

.9

.9 1-

a2

a2

a5

a5 

alO

36.7

1.18

73

Nov.

a5

a3

a2

a2

a2

*1.9

1.9

1.9

1.9

1.8

1.8

1.9

1.9

1.8

1.9

> a2

62.7

2.09

124

Dec.

a2

2.0

2.0

2.1

5.4

3.4

a3

a2.5

a2.5

a2.5

a2

a2

a2

a2

a2

a2

a2

2.0

2.0

*1.9

2.0

2.0

2.0

2.0

2.0

2.1

2.1

a2

a2

a2

67.5

2.18

134

Calendar year 1956: Max 937

Jan.

a2

a?

a2

a2

a2

a2

a3

a3

3.0

3.0

3.0

10

58

T2

7.0

5.3

4.6

4.0

3.8

4.1

15

9.2

*7.0

5.7

5.7

10

8.0

6.5

5.7

4.6

4.6

217.8

7.03

432

Feb.

4.3

4.3

4.0

3.8

3.8

3.6

378

8.6

8.0

6.5

5.7

5.3

5.0.

4.6

4.3

4.3

4.0

4.0

3.8

*3.8

5.0

6.5

241

462

265

*94

62

51

-

1,282.0

45.8

2,540

Mar.

*44

36

31

31

26

*25

23

21

6545-

34

46

37

31

32

*30

26

23

22

19

17

16

15

14

14

13

12

12

11

11 

9.8

791.8

25.5

1,570

Apr.

no

9.8

8.0

7.5

7.0

6.5

6.1

5.7

5.7

6.1

5.7

5.7

5.7

22

12

*8.6

-

-

-

-

_

-

-

.

-

_

-

-

-

-

_

_

-

May June July Aug. Sept.

Min o Mean 38.2 Ac-ft 27.710

Water year 1956-57: Max - Min - Mean - Ac-ft -

Peak discharge (base, 740 cfs). --Feb. 24 (8 p.m.) 1,040 cfs (6.42 ft).

- Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of recorded range in stage, 

and records for Pescadero Creek near Pescadero.

weather records,
PAJARO RIVER BASIN 205

San Benito River near Willow Creek: School, Calif.

Location. Lat 36°36'50", long 121°12'50", in SW£ sec. 21, T. 15 S., R. 7 E., on right 

bank 1.7 miles downstream from Willow Creek, 1.8 miles northwest of Willow Creek 

School, and 10.4 miles northwest of San Benito.

Drainage area. 250 sq mi.

Records available. December 1939 to September 1957.

Gage. Water-stage recorder. Datum of gage is 878.57 ft above mean sea level, datum of 

1929, supplementary adjustment of 1943. Prior to Jan. 28, 1948, at same site at 

different datum. Jan. 28, 1948, to Nov. 10, 1955, at site 0.9 mile upstream at different datum.

Average discharge. 17 years (1940-57), 22.4 cfs (16,220 acre-ft per year); median of 

yearly mean discharges , 10.5 cfs (7,600 acre-ft per year).

Extremes. Maximum discharge during year, 770 cfs Feb. 25 (gage height, 2.95 ft); minimum, 0.1 cfs many days in September.

1939-57: Maximum discharge, 6,200 cfs Apr. 4, 1941 (gage height, 7.8 ft, datum 

then in use), from rating curve extended above 1,600 cfs; no flow Sept. 19 to Oct. 24, 

1947, June 29, 30, July 24, 1956.

Maximum stage known, about 9.0 ft, from floodmarlts left by high water of 1937-38.

Remarks. Records good. Small diversions above station for irrigation. 

Revisions. WSP 1445; Drainage area.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.6

1.6

1.8

2.1

TTff

1.8

1.6

*1.6

1.6

1.5

1.5

1.5

1.5

1.3 173-

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.5

1.5

1.6

1.6

1.6

1.6

1.6

1.8

2.1

48.1

1.55

95.

Nov.

2.3

2.1

2.1

2.1

2.1

1.8

1.8

1.8

1.8

1.8

1.8

*1.B

1.8

1.8

1.8

1.8

1.8

2.1

2.1

1.8

1.8

1.8

1.8

1.8

1.8

1.6

271

2.1

2.1

2.1

57.3

1.91

114

Dec.

2.1

2.1

2.1

2.1

2,1

2.3 273

2.3

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

*1.8

178

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

61.5

1.98

122

Jan.

1.8

T78

1.8

2.1

2.3

2.6

2.3

2.3

2.1

2.1

2.1

7.1

118 ^75

49

26

18

15

12

9.3

10

10

10

10

9.3

8.6

9.3

8.6

8.6

7.9

*6.5

451.5

14.6

896

Feb.

6.5

5.3

4.7

4.2

3.7

3.3

3.3

3.3

3.3

2.9

2.9

2.9

2.6

2.3

27S

2.3

2.3

2.3

*2.3

2.3

2.9

3.7

17

62

400

122

61

47

-

-------

780.6

27.9

1,550

Mar.

135 ~88

54

*41

34

27

20

17

15

16

15

13

12

12

12

11

11

11

10

9.9

8.6

7.5

7.2

6.8

6.4

*6.0

5.7

5.3

4.8

4.6

4.6

631.4

20.4

1,250

Apr.

4.8

4.6

4.6

4.3

3.9

3.6

3.4

3.4

3.6

3.6

3.6

3.1

374

3.6

3.6

3.6

4.6

25

73

34

26

26

*18

14

12

9.9

6.8

5.3

4.6

4.3

324.2

10.8

643

May

4.1

4.1

4.3

4.3

3.4

2.7

2.5 775"

2.5

2.5

3.4

4.3

4.1

*4.3

4.3

3.9

3.1

3.4

6.8

34

24

15

14

11

7.5

6.8

5.7

4.8

4.3

3.9

3.4

204.9

8.61

406

June

2.9

27T

2.1

1.8

1.5

1.3

1.2

1.1

1.0

.9

.8

.8

.7

.7

.6

.6

.6

.6

.5

.5

'.5

.4

.4

.4

.4

*.4

.4

.6

.6

.6

27.6

0.92

55

July

0.6

.5

.4

.3

.3

.2

72

.2

.2

.2

.2

.2

[j',2

.3

.4

.4

.4

.4

.3

.3

*.2

.2

.2

.3

.3

.3

.3

.3

 "-

8.9

0.29

18

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

6.2

O.2O

12

Sept.

0.2

.1

72

t'.Z2

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

*.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.4

0.15

8.7

Calendar year 1956: Max 842 Mln 0 Mean 19.9 Ac-ft 14,470

Water year 1956-57: Max 400 Mln O.I Mean 7.14 Ac -ft 5,170

Peak discharge (base. 150 cfs).--Jan. 13 (5 p.m.) 451 cfs (2.68 ft); Feb. 25 (10 a.m.) 770 cfs

(2.95 ft); Mar. 1 (4 p.m.) 177 cfs (1.89 ft).

* Discharge measurement made on this day.

Note. No gage-height record June 3 to July 14; discharge estimated on basis of 1 discharge 

measurement, recorded range In stage, weather records, and records for station near Holllster.
206 PAJARO RIVER BASIN

Tres Pinos Creek near Tres Pinos , Calif.

Location. Lat 36°45'13", long 121°17'03", in Santa Ana y Quien Sabe Grant, on right 

bank 3.5 miles southeast of Tres Pinos, San Benito County, and 6.2 miles upstream 

from mouth.

Drainage area.--209 sq mi.

Records available. December 1940 to September 1957.

Gage. Water-stage recorder. Concrete control since June 3, 1954. Altitude of gage is 

570 ft (from topographic map).

Average discharge. 16 years (1941-57), 10.1 cfs (7,310 acre-ft per year); median of 

yearly mean discharges, 4.6 cfs (3,300 acre-ft per year).

Extremes. Maximum discharge during year, 54 cfs Dec. 16 (gage height, 2.38 ft), no flow

1940-57: Maximum discharge, 8,060 cfs Apr. 4, 1941 (gage height, 7.75 ft), from 

rating curve extended above 3,500 cfs; no flow Aug. 30, 31, 1952, May 2, 3, 1957. 

Flood in February 1938 reached a stage of about 9.0 ft, from floodmarks.

Remarks. Records fair. Diversions above station for irrigation can divert total flow 

in summer months.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

16

19

20

Zl

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.3 

2.3

2.6

2.6

2.6

2.6

2.9 «2T¥

2.9

2.9

2.9

2.3

2.3

2.3

2.3

2.3

2.3

2.6

2.6

2.6

2.3

2.3

2.3

2.6

2.6

2.6

2.9

2.9

2.9

2.6

2.3

79.4

2.56

157

Nov.

2.3 

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

1.6 *TTS

1.6

1.6

2.0

2.0

2.0

2.3

2.6

2.6

2.6

2.9

2.9

2.9

5.5

3.3

3.3

3.3

3.3

2.9

73.6

2.45

146

Dec.

2.9 

2.9

2.9

2.9

2.9

2.9

3.3

2.9

2.9

2.9

2.6

tt

2.9

2.9

2.9

2.9

3.3

*3,3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3,7

96.4

3.11

191

Jan.

3.7 

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

4.2

4.7

T7Z

4.2

4.2

4.2

3.7

3.7

4.2

4.2

4.2

4.2

3.7

4.2

4.2

3.7

3.7

3.7

3.3 *T. 7 w o . -j

120.4

3.88

239

Feb.

3.3 

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3,3

3.3

3.3

3.3

3.3

3.3

3.3

*2.9 r^

3.3

3.3

3.7

3TT

3.3

3.3

3.7

3.7

93.2

3.33

185

Mar.

3.7 

3.3

3.3

*3.3

3.3

2.9

2^

3.3

3.3

3.3

2.9

2.9

2.9

2.9

2.9

3.3

3.3

3.3

3.3

2.9

2.9

2.9

2.9

3.3

3.7

 4.2

tt

4.2

4.2

4.2

4.2

104.1

3.36

206

Apr.

fcf

4.2

4.2

4.2

4.2

4.2

3.7

3.7

3.7

3.7

3.7

3.7

2.9

2.6

2.6

2.9

3.3

2.9

2.9

3.3

3.3

 3.3

2.9

2.6

2.3

.8

1.0

1.4

.5

92.9

3.10

184

May

0.1 

0

(5

.2

2.0

2.0

2.0

2.0

2.6

2.6

2.6

2.9

2.9

 3.7373"

3.3

3.3

3.7

3.7

3.7

3.7

3.3

3.3

3.3

3.3

3.3

3.3

2.0

1.4

1.4

1.2

76.1

2.45

151

June

1.2 

1.4

1.6

1.6

1.6

1.8

1.6

1.4

1.4

1.4

.8

.4

.4

.4

.4

.8

1.1

.8

1,0

1.8

2.0

2.3

2.3

2.6

T3

*1.2

1.2

1.2

1.2

1.1

40.0

1.33

79

July

1.2 

1.4

1.4

1.2

.7

.6

.5

.5

.5

1.1

2.6

3.3

tt

2.9

2.6

2.6

2.6

2.6

2.6

3,3

2.6

2.0

*1.8

1.8

1.8

2.3

2.3

2.3

2.6

2.3

2.3

61.2

1.97

121

Aug.

2.3

rn: -3.1

.1

.1

.2

.2

.2

.2

.2

,2

.2

.1

.1

.1

.1

.1

.3

.7

.8

1.0

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.2

1.2

18.8

0.61

37

Sept.

1.2 

1.2

1.2

.5

^

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

*.3

.3

.3

.3

.4

.4

.6

1.6

1.6

1.6

1.8

2.0

T3

1.8

20.9

0.70

41

Calendar year 195S: Max 1,440 Min 0.7 Mean 25.5 Ac-ft 18,540

Water year 1956-57: Max 4.7 Min 0 Mean 2.40 Ac-ft 1,740

Peak discharge (base, 450 cfs). No peak above base.

* Discharge measurement made on this day.
PAJARO RIVER BASIN 207

San Benito River near Hollister, Calif.

Location. Lat 36°47'17", long 121°22'11", in SWij sec. 24, T. 13 S., R. 5 E., on left 

bank 1,500 ft downstream from Bird Creek, 0.9 mile downstream from Tres Pinos Creek, 

2.7 miles west of Tres Pinos, and 4.8 miles southeast of Hollister.

Drainage area. 586 sq mi.

Records available. October 1949 to September 1957.

Sage. Water-stage recorder. Altitude of gage is 370 ft (from topographic map).

Average discharge. 8 years, 26.1 cfs (18,900 acre-ft per year).

Extremes. Maximum discharge during year, 489 cfs Feb. 25; maximum gage height, 4.62 ft 

Jan. 13 or 14; no flow for several months.

1949-57: Maximum discharge, 7,460 cfs Dec. 24, 1955 (gage height, 12.55 ft); no 

flow for several months each year.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Several small diversions above station for irrigation.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

1.9

2.0

2.1

2.2

Oct. 1 to Jan. 13 

0

.2

.6

1.3

2.3

2.4

2.5

2.6

2.3

3.9

6.4

11

2.4

2.5

2.6

2.7

2.8

Jan. 14 to Sept. 30 

0

.2 

1.7 

6.5 

13

2.9

3.0 

3.3 

3.6

21

31

76

141

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-It

Oct.

fl

0

.1

.2

72

.1

.1 *o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1.1

.1

.2

.2

1.5

0.05

3.0

Nov.

0.1

.1

0

7J

0

0

0

0

0

0

0

0

**.!

0

0

0

0

0

0

0

.1

.3

.2

.4

.6

.7

.8

 

1.1

1.0

6.4

0.21

13

Dec.

1.0

.8

Tff

.8

.9

1.6

1.5

1.2

1.2

1.5

1.3

1.2

1.3

1.3

1.2

1.1

1.1

*1.3

1.2

1.1

1.2

1.2

1.2

1.5

1.5

1.7

1.3

1.5

1.6

1.6

1.8

39.5

1.27

78

Jan.

2-0-

2 .1

2.4

2.6

3.0

2.8

2.6

2.4

2.4

2.4

2.6

3.0

7.0

40

25

15

13

12

11

11

10

10

10

10

9.5

9.2

9.0

8.6

8.2

7.5

*6.5

262.8

8.48

521

Feb.

6.5

5.9

5.9

5.4

4.2

4.2

4.2

4.2

4.2

3.7

3.7

3.7

3.7

3.7

3.7

3.3

2.9

3.3

*3.3

2.1

2.9

4.2

6.5

13

135

87

15

10

-

355.4

12.7

705

Calendar year 1956: Max 2,540 Min 0

Mar.

12

34

T5 *18

19

25

22

18

16

15

13

11

9.0

7.8

8.4

8.4

7.8

7.8

7.1

6.5

5.4

4.8

4.8

4.8

4.2

*4.2

3.7

2.1

2.5

1.3

1.0

322.6

10.4

640

Apr.

1.7

1.3

1.7

1.0

.7

.5

.3

.3

74

.3

.3

.3

.3

.3

.3

.3

.4

.5

.7

38

25

19

*15

12

7.8

3.7

3.3

1.7

1.7

.7

139.5

4.65

277

Mean 48 . 6

May

0.3

.3

.3

.2

72

.2

.2

.2

.2

.3

.4

.2

.3

*.4

.4

1.3

.5

.5

.5

.7

1.0

2.1

T73- 3.3

1.0

.7

.7

.7

.7

.7

.7

20.5

0.66

41

June

0.7

T70- 1.0

1.0

.7

.7

.7

.7

1.0

.7

.7

1.0

.7

.7

1.0

.7

.7

.7

.7

.7

.7

.7

.5

.5

.4

.3

74

.7

1.0

1.0

22.0

0.73

44

July

Oj7

'.5^Y

.4

.2

.1

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

*0

0

0

0

0

0

0

0

0

2.6

0.08

5.2

Aug.

0

0

0

Sept.

C*)

0

0

0

Ac-ft 35.420

Water year 1956-57: Max 135 Min 0 Mean 3.21 Ac-ft 2,330

Peak discharge (base, 600 cfs). No peak above base

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.

Note. No gage-height record Dec. 29 to Jan. 30j discharge estimated on basis of recorded range 

In stage and records for station near willow Creek School.
208 PAJARO RIVER BASIN

Pajaro River at Chittenden, Calif.

Location. Lat 36°54'0l", long 121°35'48", in Salsipuedes Grant, on downstream side of 

right bank pier of State highway bridge, 0.6 mile downstream from Pescadero Creek, 

0.6 mile southeast of Chittenden, Santa Cruz County, and 2.3 miles downstream from 

San Benito River.

Drainage area. 1,188 sq mi.

Records available. December 1939 to September 1957. Prior to October 1954, published 

as "near Chittenden."

Gage. Water-stage recorder. Datum of gage is 81.81 ft above mean sea level (levels by 

U. S. Weather Bureau). Prior to May 13, 1949, wire-weight gage on former bridge 100 ft 

downstream at same datum except that water-stage recorder, also 100 ft downstream and 

at same datum, was used Dec. 20, 1946, to June 11, 1947, June 21 to Sept. 23, 1947, and 

Dec. 19, 1947, to May 6, 1948.

Average discharge.--17 years (1940-57), 150 cfs (108,600 acre-ft per year); median of 

yearly mean discharges, 75 cfs (54,300 acre-ft per year).

Extremes. Maximum discharge during year, 1,110 cfs Feb. 25 (gage height, 10.91 ft); minImum daily, 0.4 cfs July 16, 17, 19, July 21 to Aug. 1.

1939-57: Maximum discharge, 24,000 cfs Dec. 24, 1955 (gage height, 32.46 ft), from 

rating curve extended above 8,300 cfs on basis of slope-conveyance study; no flow at 

times during July and August 1948.

Flood in February 1938 reached a stage of 31.3 ft, from floodmarks.

Remarks. Records good. Small amount of storage and many diversions above station for 

irrigation. Records of chemical analyses for the water year 1957 are given in WSP 1523.

Rating table, water year 1956-57 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1-19, May 19 to July 3)

2.9

3.0

3.1

3.2

3.3

.9 

1.5

2.3

3.5 

3.7 

4.0 

4.5

4.5 

8.0

16

5.0

5.5

7.0

10.0

75

125

350

920

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Tota3

Mean

Ac-ft

Oct.

2.4

2.3

2.5

3.2

3.4

3.4

3.4

3.1

*2.8

2.7

2.5

2.2

2.1

1.8

1.7

1.7

1.8

1.7

1.7

1.7

1.7

1.7

2.0

1.9

1.9

1.9

2.1

2.1

3.1

3.4

72.0

2.32

143

Nov.

3.0

2.9

2.8

2.7

2.6

2.6

2.4

2.3

tt

2.3

2.3

2.6

*2.7

2.7

2.7

2.8

2.9

3.1

3.1

3.0

3.0

3.1

3.1

3.1

3.1

3.3

3.4

3.9

4.3

88.2

2.94

175

Dec.

4.3

4.3

4.1

4.3

5.8

5.6

5.5

5.5

4.8

4.7

4.4

4.4

4.3

4.1

4.0

4.0

4.0

*4.0

4.0

4.0

3.9

47J

4.0

4.1

4.0

4.0

4.1

4.3

4.5

4.5

135.9

4.38

270

Jan.

4.7

T3

5.0

5.1

5.8

6.1

6.3

6.9

6.7

6.1

5.8

6.7

13

13

i§

11

8.6

8.0

7.2

12

12

12

11

9.2

9.0

9.8

9.0

8.4 

7.8

7.2

6.9

260.1

8.39

516

Feb.

6.5

6.5

6.1

5.8

5.6

5.6

5.9

5.9

5.8

5.8

5.8

5.6

5.5

5.5

5.5

5.1

5.1

5.3

*5.0

4.8

5.9

6.3

7.4

167

845

293

134

80

1,651.3

59.0

3,280

Mar.

72

57

38

*34

32

34

32

26

32

71

64

63

71

51

37

32

30

26

20

16

14

13

11

11

12

*12

13

12 

11

10

IT

964

31.1

1,910

Apr.

11

11

10

10

10

9.8

10

11

11

11

11

10

11

13

12

11

10

13

33

34

25

17

*12

8.8

7.0

6.1

5.8

57J 

6.5

7.4

364.3

12.1

723

May

6.9

6.1

5.6

5.5

5.1

5.0

4.8

5.0

4.3

4.0

3.9

57J

5.6

6.3

*5.8

5.0

4.3

10

688 '299

252

201

155

121

99

81

65

52 

43

37

31

2,222.2

71.7

4,410

June

23

19

16

13

10

8.4

7.4

7.0

7.8

7.4

6.7

5.8

4.5

4.0

3.7

4.0

3.9

3.8

3.9

4.1

3.8

3.5

3.2

2.9

2.6

*2.1

1.5

1.7 

1.5

1.4

187.6

6.25

372

July

1.4

TT

1.0

.9

.7

.7

.7

.8

.7

.6

.6

v5

.5

.5

.5

ii. *.4

.5

.4

.5

.4

.4

*.4

.4

.4

.4

.4

.4 

.4

.4

.4

17.9

0.58

36

Aug.

~0.4

.8

1.0

1.1

1.3

1.7

1.4

.8

.6

.9

1.1

1.2

1.0

.8

.8

1.0

1.0

1.0

.7

.6

.5

.8

1.2

1.4

1.4

1.3

1.4 

1.7

2.0

1-ii

33.5

1.08

66

Sept.

2.1

2.1

2.2

2.2

2.1

2.1

2.0

2.2

2.8

3.0

2.5

2.1

1.5

1.4

1.6

1.7

*1.6

1.4

1.4

1.5

1.4

1.3

T^

1.5

1.5

1.6

1.4

1.4 

1.4

1.4

54.0

1.80

107

Calendar year 1956: Max 8,410 Min 1.3 Mean 200 Ac-ft 145,500

Water year 1956-57: Max 845 Min 0.4 Mean 16.6 Ac-ft 12,000

Peak discharge (base, 400 cfs). Feb. 25 (6:30 a.m.) 1,110 cfs (10.91 ft); May 19 (7 a. 

(10.40 ft).

.) 1,040 efs

* Discharge measurement made on this day.
PAJARO RIVER BASIN 209

Corralitos Creek at Freedom, Calif.

Location.--Lat 36°56'22", long 121°46'10", in Los Corralitos Grant, on right bank just 

upstream from Green Valley Road bridge, 0.25 mile north of Freedom, Santa Cruz 

County, and 2.3 miles north of Watsonville.

Drainage area.--27.8 sq mi.

Records available.--October 1956 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is ft (from topographic map).

Extremes.--Maximum discharge during year, 715 cfs May 18 (gage height, 7.67 ft); no flow 

June 12-19, Sept. 30.

Flood of Dec. 22, 1955, reached a stage of 15.6 ft, from floodmarks (discharge, 

3,620 cfs on basis of contracted-opening determination of peak flow).

Remarks.--Records fair. Approximately 3.9 cfs diverted daily above station for municipal 

supply of city of Watsonville.

Rating table, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Nov. 16 to Feb. 23, Sept. 13-23)

2.1

2.2

2.3 

2.5

0.3 

1.1 

2.5 

8.0

2.8 

3.2 

4.0 

5.0

46

108

220

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

> aO.6

18.6

0.6

37

Nov.

> aO.6

*0.

1.

I/

1 .

1.

!e

19.4

0.65

38

Dec.

0.8

.6

.6

1.8

1.7

.8

.4

.4

.4

.4

.4

.4

.4

.6

.6

.6

.6

.6

.8

1.0

1.0

1.0

1.0

1.0

.8

.6

.6

.8

.8

 8

. 8

23.1

0.75

46

Jan.

0.8

1.1

1.1

1.0

1.7

1.1

.8

1.1

1.0

.6

.6

6.6

*20

3.5

.6

.4

.4

.4

.4

22.

5.2

2.5

.6

.3

1.4

4.0

1.1

.4

.3

iL*.2

81.4

2.63

161

Feb.

0.2

,4

.2

.2

.2

.2

.4

.7

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

*.2

.2

1.2

3.8

*33

63

84

32

21

20

-

263.1

9.40

522

Mar.

*18

14

12

16

*18

*20

16

13

35

25

17

19

16

12

11

10

8.4

6.8

6.2

4.8

4.0

3.0

2.8

2.2

1.5

1.1

*1.0

.8

.8

.7

1.4

317.5

10.2

630

Apr.

6.5

5.9

5.3

. 7

.5

.5

.4

.4

.4

.4

.4

.4

.4

.7

.4

.4

.5

22

8.0

7.1

5.9

3.8

1.8

*1.3

.7

.4

.4

.3

~3.2

76.3

2.54

151

.May

0.3

.7

.4

.3

.3

.3

.3

.4

.3

._Z_

.2

.2

.3

.3

*.3

.2

.2

205 ~90

50

55

33

?4

18

14

10

7.4

6.2

5.3

4.0

2.8

529.9

17.1

1,050

June

1.8

1.4

1.8

1.3

.9

.4

.2

.1

.2

.2

.1

0

0

0

0

0

0

0

0

.4

2.2

T7T

1.1

1.2

1.3

*.9

.2

.3

.4

.4

18.5

0.62

37

July 

0.2

.3

.5

.6

75

.6

.5

.2

.2

.2

72" .1

.2

.4

.2

.1

.1

.2

.4

.2

.2

.4

*.2

.6

.5

.5

.6

.6

.2

.2

.4

10.3

0.33

20

Aug.

0.

^_

i

13.

0.4

27

Sept.

0.2

.3

.3

.4

.4

.4

.4

.3

.4

.4

.4

.3

.4

.4

.8

.4

.4

.3

.3

.2

.2

.1

*.l

.1

.2

.1

.2

.2

.1

0

8.7

0.29

17

Calendar year 1956 : Max - Win - Mean - Ac-ft -

Water year 1956-57: Max 205 Mln 0 Mean 3.78 Ac-ft 2.740

Peak discharge (base. 350 efs).--May 18 (5 p.m.) 715 cfs (7.67 ft)._________________

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and base-flow 

characteristics.
210 SOQUEL CREEK BASIN

Sequel Creek at Sequel, Calif.

Location. Lat 36°59'29", long 121 0 57'17", in NE£ sec. 10, T. 11 S., R. 1 W., on left 

bank 0.2 mile upstream from highway bridge in town of Soquel and 0.4 mile downstream 

from Bates Creek.

Drainage area.--40.4 sq mi.

Records available. May 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 40 ft (from topographic map).

Average discharge. 6 years, 49.2 cfs (35,620 acre-ft per year).

Extremes. Maximum discharge during year, 2,010 cfs May 18 (gage height, 9.01 ft); minimum, 2.5 cfs many days in October.

1951-57: Maximum discharge, 15,800 cfs Dec. 23, 1955 (gage height, 22.33 ft), from 

rating curve extended above 2,100 cfs on basis of slope-area determination of peak 

flow; minimum, 0.3 cfs Oct. 9, 1955.

Remarks. Records good. Small diversion above station for irrigation. Records of chemical analyses for the water year 1957 are given in WSP 1523.

Rating tables, water year 1956-57 (gage height, 

in cubic feet per second) 

(Shifting-control method used Oct. 1 to Jan. 11)

t, and discharge,

3.9

Oct. 1 to Mar. 9

1.7 4.3

2.9 5.0

6.1 5.5

12 6.0

20 6.5

Mar. 1O to Sept. 3O

129

213

340

520

3.5

3.6

3.7 

3.9 

4.1

167

390

550

30

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

1«

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean 

Ac-ft

Oct.

3.2

3.3

3.0

3.0

3.2

3.2

3.2

3.2

3.2

3.0

3.5

3.5

3.3

2.9

2.7

2.5

2.7

2.5

2.7

2.7

2.8

2.5

2.9

3.2

2.9

3.0

3.3 '3.3

3.3

103

235.7

7.60

468

Nov.

11

9.3

8.

7.

6 -

6.

6.

*6.

5.

5.

6.

6.

6.

5. 57~

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

189.5

376

Dec.

5.7

BT7

5.7

7.9

12

11

8.2

7.7

7.5

7.2

7.2

7.0

7.2

7.0

7.0

7.0

7.0

7.2

7.2

7.2

*7.0

7.0

7.0

7.0

7.0

7.0

7.0

7.0

6.8 

7.0

7.0

226.4

7.30 

449

Jan.

7.0

7.0

7.0

7.0

7.5

8.2

7.7

7.7

7.7

7.7

8.5

43

»81

19

12

9.0

8.2

7.5

7.2

56

21

14

11

10

»13

18

13

11

11

9.6 

9 3

466.8

15.1

926

Feb.

9.0

9.0

8.7

8.4

8.2

8.2

13

28

17

13

12

11

10

10

9.3

9.0

9.0

9.0

9.0

*8.7

*16

20

*248

497

304

*103

71

65

-

1,543.5

Mar.

*59

46

40

39

40

41

38

*38

107

69

47

56

47

38

*45

46

38

34

31

28

25

24

23

21

20

20

20

18

18

18

17.

1,151

3,060 2,280

Apr.

16'

16

*15

14

14

13

13

14

13

12

12

12

12

29

16

14

24

61

26

23

20

18

17

1C

16

14

14

13

12 

*12

521

1,030

May

13

14

14

12

12

12

12

14

16

14

13

12

14

14

14

12

12

518

217

128

*140

9C

69

55

45

38

33

28

31

36

35

1,689

3,350

June

25

27

21

21

19

18

17

17

18

18

14

14

14

14

14

14

12

12

11

11

11

10

9.7

9.7

8.9

8.5

875

9.3

9.7 

9.7

422.0

K37

July

11

no

8.9

8.5

7.6

6.8

6.8

6.8

6.5

6.2

6.2

5.8

5.8

5.8

5.8

5.8

5.8

6.2

5.8

5.8

b.2 c!s

5.5

5.8

5.8

5.8

5.8

5.5

5.5 

5.2

4 . 9

200.7

398

Aug.

4.6

4 . 6

4!2

4.2

4.2

*3.9

3.9

3.9

3.9

3.6

3.3

3.5

3.5

3.5

3.3

3.3

3.3

3.3

3.3

3.3

3.2

372

3.3

3.3

3.6

3.9

3.5

3.5

3.3 

3.3

3.3

112.0

222

Sept.

3.5

3.3

3.2

3.3

3.3

3.5

3.2

3.1

3.2

3.2

3.2

*3.2

3 . 2

3.3

3.2

3.2

3.3

3.3

3.2

3.3

3.3

3.2

3.1

3.3

3.3

3.e

4.2

8.9

4.9

109.2

3.64 

217

Calendar year 1956; Max 776 Mln 3.0 Mear. 46.9 Ac-ft 34, OLD

Water year 1956-57: Max 518 Mln 2.5 Mean 18.9 Ac-ft 13,610

Peak discharge (base, 750 cfs).--Oct. 30 (7 : 30 p.m.) 865 

(7.57 ft); May 18 (3 p.m.) 2,010 cfs (9.01 ft).

(7.09 ft); Feb. 24 (9 p.m.) 1,060

Discharge nt made on this day.
SAN LORENZO RIVER BASIN 211

San Lorenzo River at Big Trees, Calif.

Location. Lat 37°01'40", long 122°03'30", in Canada del Rincon Grant, on right bank

0.5 mile south of Big Trees station on Southern Pacific Railroad, 1.6 miles downstream 

from Zayante Creek,_and 4 miles north of Santa Cruz, Santa Cruz County.

Drainage area. 110 sq mi.

Records available. April 1937 to September 1957.

Gage. Water-stage recorder. Datum of gage is 217.0 ft above mean sea level (levels by 

Topographic Divis ion).

Average discharge.--20 years, 142 cfs (102,800 acre-ft per year); median of yearly mean 

discharges, 110 cfs (79,600 acre-ft per year).

Extremes. Maximum discharge during year, 2,560 cfs Feb. 24 (gage height, 7.15 ft), minimum not determined.

1937-57: Maximum discharge, 30,400 cfs Dec. 23, 1955 (gage height, 22.55 ft), from 

rating curve extended above 11,000 cfs on basis of slope-area determination of peak 

flow; minimum, 0.8 cfs June 25, 1939.

Remarks.--Records good except those for periods of no gage-height record, which are poor. 

Many small diversions above station for domestic supply. Records of chemical analyses 

for the water year 1957 are given in WSP 1523.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 30 to Sept. 30

0.8 20

1.0 27

1.5 55

2.0 

2.5

97

197

0.6 

1.0 

2.0 

2.5

17

31,

106

192

3.0 330

4.0 715

5.5 1,450

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

21

21

21

23

23

22

23

23

26

24

24

25

23

22

22

21

21

21

21

21

21

20

zT

23 

22

22

22

24

24

108 - go"

O£

838

27.0

1,660

Nov.

38

34

32

31

30

29

29

29

*28

28

27

27

27

26

27

26

26

27

25

25

26

26

26

26 

26

26

26

26

26

26

831

27.7

1,650

Dec.

26

25

25

3T

42

36

31

29

28

28

28

28

28

28

28

27

27

27

27

26

*27

26

26

26 

26

25

25

25

25

25

25

856

27.6

1,700

Jan.

25

25

25

25

27

27

27

29

29

28

27

149

~66 282

50

43

38

36

35

202

75

55

50

46 

*52

64

50

47

46

43

41

1,764

56.9

3,500

Feb.

40

41

39

38

51

37

50

89

63

55

52

50

48

45

42

40

38

37

*37

37

63

61

760

*1,280 

*803

*282

185

190

 -

4,539

162

9,000

Mar.

160

T3T

131

139

134

130

118

115

*159

132

116

120

112

101

*144

148

124

110

98

95

89

83

81

77 

74

73

70

67

69

68

67

3,335

108

6,610

Apr.

63

*60

57

55

55

52

51

50

50

48

48

47

47

96

58

53

85

~79 147

78

70

66

62

61 

59

55

51

49

*46

4_4

1,842

61.4

3,650

May

46

55

50

41

42

42

42

53

72

59

55

53

55

56

52

48

47

158" 686

312

*279

211

170

142 

128

114

105

99

94

89

83

3,868

125

7,670

June

79

71

72

70

66

64

63

56

58

60

55

54

52

52

50

49

46

45

44

42

42

41

39

38 

37

37

37

38

34

40

1,531

51.0

3,040

July

*38

38

34

31

30

30

28

28

27

a25

a25

a25

a25

a28

a28

a28

27

28

28

27

27

25

24

25 

a25

a24

a23

a22

a22

a22

a22

839

27.1

1,660

Aug.

(*)

> a22

682

22

1,350

Sept.

{*)

> a!7

510

17

1,010

Calendar year 1956: Max 1,700 Min 20 

Water year 1956-57: Max 1,280 Min 17

Mean 150 

Mean 58.7

Ac-ft 108,800 

Ac-ft 42,500

Peak discharge (base, 1,400 cfs). Feb. 24 (9 p.m.) 2,560 cfs (7.15 ft)j May 18 (5:30 p.m.)

1,760 cfs {6.01 ft)._____________________________________________________________

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 2 discharge measurements and records for 

nearby stations.

5105Z9 O -59 - 15
212 SAN LORENZO RIVKR BASIN

San Lorenzo River at Santa Cruz, Calif.

Location. Lat 36°59'20", long 122"01'40", in Santa Cruz, Santa Cruz County, at upstream 

end of Odd Fellows Cemetery, 1.1 miles upstream from Branciforte Creek and 2.1 miles 

upstream from mouth.

Drainage area. 115 sq mi.

Records available. October 1952 to September 1957.

Gage. Water-stage recorder. Datum of gage is 4.01 ft above mean sea level (levels by 

California Division of Highways).

Average discharge. 5 years, 116 cfs (83,980 acre-ft per year).

Extremes.--Maximum discharge during year, 2,720 cfs Feb. 24 (gage height, 7.77 ft); minimum not determined.

1952-57: Maximum discharge, 30,400 cfs Dec. 23, 1955 (gage height, 23.10 ft), from 

rating curve extended above 4,500 cfs on basis of slope-area determination of peak 

flow; no flow Sept. 3, 4, 9, 1955.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Diversion directly above station for city of Santa Cruz domestic supply, also several 

smaller diversions above station for domestic supply.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 13 to Jan. 12)

Oct. 1 to Nov. 12

.5 21

.7 44

.2 122

Nov. 13 to Feb. 24 Feb. 25 to Sept. 30

3.9

4.1

4.2

4.3 

4.5

4.7 

5.0 

5.5 

6.0 

6.5

145 

270 

54O 

870 

1,290

2.9

3.0

3.1

3.2

3.3

3.0 

5.0

3.6 

4.O 

4.5 

5.0 

6.0

77

155

2 SO

460

1,O1O

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotfLl

Mean

Ac-ft

Oct.

15

15

15

15

16

18

18

16

17

16

17

17

18

17

15

15

15

15

15

15

15

15

15

16 

15

16

18

20

18

109 ITf o I

664

21.4

1,320

Nov.

32

24

21

20

20

18

19

*15

T5

15

15

15

20

27

19

17

16

17

17

16

17

17

17

16

16

16

16

16

15

15

539

18. 0

1,07O

Dec.

16

16

15

IT

21

20

17

17

17

*17

19

18

19

18

19

19

17

18

17

18

18

19

19

17 

19

17

17

18

17

19

17

552

17.8

1,090.

Jan.

17

17

17

16

IT

20

19

19

19

19

19

105

330 ^re

56

48

41

4O

38

193

250

54

48

43 

*46

64

46

43

41

38

37

1,847

59.6

3,660

Feb.

37

38

37

36

34

36

43

82

60

52

44

43

41

40

38

37

37

36

*36

34

54

58

*718

1.240 

976

337

235

228

-

4,687

167

9,30O

Mar.

200 *1BT

139

161

149

137

121

115

*169

143

121

123

113

99

*138

149

123

107

97

86

79

72

69

66 

63

61

67

66

66

66

65

3,383

109

6,710

Apr.

59

55

*50

50

50

51

5O

50

48

48

47

47

47

91

53

45

66

143

75

75

63

56

48

48 

45

40

39

37

*34

31

1,641

54.7

3,250

May

32

4?

43

39

35

34

34

39

64

53

48

45

47

48

42

40

40

641

500

325

*328

248

210

175 

155

141

129

123

119

107

92

4,018

130

7,970

June

90

W

71

69

63

61

59

63

59

59

55

53

5O

47

47

48

45

39

37

35

31

29

29

28 

27

24

2J

24

25

25

1,396

46.5

2,770

July

*29 zs

25

23

22

19

19

19

16

16

15

16

14

13

13

11

TT

11

11

12

14

17

16

16

15

14

14

14

15

13

11

502

16.2

996

Aug.

10

9.5

8.5

7.5

7.5

(*)

> a5.0

173.0

5.58

343

Sept.

(*)

> a4.5

-

135.0

4.5

268

Calendar year 1956: Max 1,750 Mln 15 Mean 153 Ac-ft 110,800

Water year 1956-57: Max 1,24O Mln - Mean 53.5 Ac-ft 38,750

Peak discharge (base, 1,400 cfs) . Feb.-24 (9 p.m.) 2,720 cfs (7.77 ft); May 18 (6 p.m.) 1,82O cfs 

(6.97 ft).______________________________________________________________________

* Discharge measurement made on this day.

a No gage-height recordj discharge estimated on basis of 2 discharge measurements and records for 

nearby stations.
SAN LORKKZO RIVER BASIN 213

Branciforte Creek at Santa Cruz, Calif.

Location. Lat 36°58'00", long 122°01'00", in Santa Cruz, Santa Cruz County, 15 ft downstream from Market Street bridge and 1.0 mile upstream from mouth.

Drainage area. 18.5 sq mi.

Records available. January 1940 to September 1943, March 1952 to September 1957.

Gage. Water-stage recorder. Datum of gage is 11.22 ft above mean sea level (levels by 

C~orps of Engineers). Jan. 3 to Nov. 14, 1940, staff gage at site 15 ft upstream at 

datum 3.90 ft higher. Nov. 15, 1940, to Nov. 25, 1941, staff gage at site 150 ft 

downstream and Nov. 26, 1941, to Sept. 30, 1943, water-stage recorder at site 75 ft 

downstream, both at datum 4.52 ft higher. Mar. 16 to July 27, 1952, staff gages at 

site 150 ft downstream at present datum.

Average discharge. 8 years, 22.9 cfs (16,580 acre-ft per year).

Extremes. Maximum discharge during year, 382 cfs May 18 (gage height, 6.45 ft); minimum 

not determined.

1940-43, 1952-57: Maximum discharge, 8,100 cfs Dec. 22, 1955 (gage height, 22.04ft), 

from rating curve extended above 530 cfs on basis of slope-area determination of peak 

flow; minimum, 0.1 cfs Aug. 18, 1954, Sept. 17, 1955.

Remarks. Records good except those for periods of indefinite stage-discharge relation or 

no gage-height record, which are poor. No storage or diversion above station.

Revisions. WSP 1285: Drainage area.

Rating table, water year 1956-57, except period of Indefinite stage-discharge relation (gage

height, In feet, and discharge, In cubic feet per second)

(Shifting-control method used Jan. 20 to Feb. 23)

3.0

3.1

3.2

0.8 

2.0 

3.8

3.3

3.4

3.5

6.2

10

16

4.0 

5.0

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.5

T75

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

50

2T

118.5

3.82

235

Nov.

6.0

ITS

3.0

2.8

2.6

2.6

2.4

2.4

*2.2 2-7?

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

74.2

2.47

147

Dec.

2.2

2.2

2.2

2.8

4.6

3.4

4.6

2.4

2.4

*2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.0

275

2.0

2.0

2.0

2.2

2.0

2.0

2.2

2.2

2.2

2.2

2.0

2.0

2.0

74.0

2.39

147

Calendar year 1956: Max 420

Jan.

2.0

275

2.0

2.0

2.2

3.3

2.2

2.4

2.2

2.2

2.2

23

*13

8.9

6.0

4.8

4.5

4.3

4.3

*46

8.1

5.0

4.5

*4.0

11

16

8.5

6.0

5.5

5.0

4 .8

217.9

7.03

432

Feb.

.5

.0

.5

.3

.0

3.6

577

21

8.5

6.2

5.7

5.5

5.5

5.0

4.8

4.5

4.3

*4.3

4.3

4.3

*17

17

*108

*118 *9"8~

43

28

52

-

597.5

21.3

1,190

Mar.

36

27

19

22

21

18

14

»13

34

22

16

16

13

11

*21

17

13

11

9.6

8.9

8.1

7.7

7.0

6.6

6.2

6.0

5.7

5.5

5.5

5.2 5"72"

427.2

13.8

847

Apr.

5.0

4.5

*4.3

4.0

3.8

3.8

3.6

3.4

374

3.6

3.6

3.6

3.6

8.1

4.2

4.0

16

T5

7.0

8.9

7.0

5.7

5.2

5.0

4.3

4.0

3.4

3.4

*3.4

3.4

158.2

5.27

314

May

3.4

4.0

3.4

2.5

2.2

3.3

3.1

4.5

4.8

3.6

3.4

3.4

4.5

4.5

3.6

3.1

3.1

~65 126

77

*70

31

20

14

11

9.2

7.7

6.2

6.2

5.7

5.0

517.4

16.7

1,030

June

4.5

TTC

3.8

3.8

3.6

3.6

3.4

3.4

3.4

3.6

3.4

3.3

2.9

2.9

2.9

2.7

2.5

2.4

2.4

2.3

2.2

2.2

2.1

TT

2.1

2.1

2.1

2.1

2.2

2.3

86.3

2.88

171

July

*2.4

274

2.2

2.0

1.9

1.7

1.6

1.5

1.5

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.4

1.3

1.3

1.4

1.5

1.3

1.3

1.3

1.3

1.3

1.2

1.2

1.2

1.1

45.9

1.48

91

Aug.

1.1

TTo

1.0

1.0

.i!

*.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.0

1.0

1.0

.9

.9

.9

.9

28.7

0.93

57

Sept.

~30.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

*.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.0

1.0

1.2

2.9

275

1.7

31.4

1.05

62

Min 1.4 Mean 15.0 Ac-ft 10,920

Water year 1956-57: Max 126 Min 0.9 Mean 6.51 Ac-ft 4,720

Peak discharge (base, 6OO cfs). No peak above base.

* Discharge measurement made on this day.

Note. Stage-discharge relation Indefinite Oct. 1 to Jan. 19j discharge estimated on basis of 

3 discharge measurements, staff-gage readings, weather records, and records for San Lorenzo River 

at Big Trees. No gage-height record June 20-30, July 3 to Sept. 27, Sept. 30; discharge estimated 

on basis of 2 discharge measurements, weather records, and records for Soquel Creek at Soquel.
214 PESCADERO CREEK BASIN

Pescadero Creek near Pescadero, Calif.

Location.--Lat 37°15'40", long 122°19'40", in SWi sec. 5, T. 8 S., R. 4 W., on left 

bank at downstream side of highway bridge, 3.0 miles east of Pescadero and 5.3 miles 

upstream from mouth.

Drainage area.--46. 2 sq mi.

Records available.--April 1951 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 62.3 ft above mean sea level, datum of 

1929.

Average discharge.--6 years, 48.5 cfs (35,110 acre-ft per year).

Extremes.--Maximum discharge during year, 908 cfs May 18 (gage height, 9.43 ft); minimum, 

0.4 cfs Sept. 14.

1951-57: Maximum discharge, 9,420 cfs Dec. 23, 1955 (gage height, 21.27 ft), from 

rating curve extended above 2,700 cfs on basis of slope-area determination of peak 

flow; no flow for part of each day June 17, Aug. 20, 1954, June 17, Sept. 12, 13, 

Oct. 9, 1955.

Remarks.--Records fair. No diversion. Small logging pond in headwaters can cause regulation during flushing operations.

Revisions (water years). WSP 1445; 1952-53(M).

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Discharge, In cubic feet per second, water year October 1956 to September 1957

Oct.

3.4

378

3.8

3.9

4.2

4.2

4.1

4.2

4.2

4.2

4.5

4.7

4.7

4.7

4.4

4.4

4.2

4.2

4.2

4.5

4.5

4.2

4.4

4.8

5.0

5.0

5.5

5.6

5.2

15 

20

163.7

5.28

325

Nov.

7.3

6TT

5.6

5.3

5.2

5.0

5.0

*5.0

4.6

4.3

4.3

4.3

4.3

4.3

4.1

4.1

4.1

4.1

4.3

4.3

4.3

4.3

4.3

4.3

4.1

4.1

4.1

4.1

4.1

4.3

137.6

4.59

273

Dec.

4.1

T7T

4.1

4.6

12

14

9.2

9.5

6.6

*5.1

5.3

5.1

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.1

5.1

5.1

4.8

4.8

4.3

181.8

5.86

361

Jan.

4.1

T7T

4.1

4.1

4.1

4.1

4.1

4.1

4.8

4.6

4.3

9.5

84

2S

15

11

9.5

8.9

8.2

49

29

17

13

11

12

*17

13

12

11

10

9.9

422.5

13.6

838

Feb.

9.5

9.9

9.5

8.8

8.6

8.2

F^

22

17

14

12

11

11

9.9

9.5

9.2

8.6

 8.6

*8.2

8.2

*9.5

14

176

*299

*?54

112

92

87

-

1,266.7

45.2

2,510

Mar.

81

*63

60

104

109

104

85

76

*105

85

65

64

54

46

*61

84

59

48

41

37

33

29

26

25

24

22

21

20

?T

21 

20

1,693

54.6

3,360

Apr.

20

*17

17

16

15

15

14

14

13

12_

13

12

12

29

17

15

16

56

3T

29

20

23

22

18

19

17

16

15

*13

12

558

18.6

1,110

May

13

19

14

12

12

12

11

14

29

21

17

16

16

17

16

14

14

300 ?S9"

*124

116

83

61

49

41

37

33

29

26

24 

23

1,482

47.8

2,940

June

21

2T

20

18

17

16

15

15

14

14

13

11

11

11

12

12

11

10

10

9.5

9.5

9.2

8.5

8.0

8.0

7.2

775

7.8

8.8

8.5

364.8

12.2

724

July

*7.2

770

6.6

6.5

6.1

5.6

4.8

4.3

4.2

4.2

4.3

4.4

4.3

4.8

4.8

4.8

4.3

4.4

4.8

4.9

4.9

4.6

4.4

4.2

4.2

4.2

3.7

3.7

3.6

3.5

5.4

146.7

4.73

291

Aug.

3.0

3.5

3.7

3.5

*3.5

3.6

3.6

3.6

4.2

4.3

4.8

4.4

4.8

4.4

4.3

4.3

4.4

4.2

3.8

3.7

3.7

3.4

3.3

3.3

3.2

3.2

2.9

370

3.0

3.2

3.2

115.0

3.71

228

Sept.

2.9

2.8

2.7

2.5

2.4

2.4

2.4

2.4

2.3

2.2

2.0

1.5

*.8

ITS

1.8

1.9

1.9

1.9

1.9

1.9

1.7

1.7

1.7

1.7

1.7

1.7

2.8

4.9

375

3.3

66.9

2.23

133

Calendar year 1956: Max 1,O10 Mln 3.2 Mean 53.3 Ac-ft 38,730

Water year 1956-57: Max 30O Mln 0.8 Mean 18.1 Ac-ft 13,090

Peak discharge (base, 500 cfs). Feb. 24 (9 p.m.) 610 cfs (8.46 ft); May 18 (6:3O p.m.) 908 cfs

(9.43 ft).

Discharge measurement made on.this day.
SAN FRANCISQUITO CREEK BASIN 215

San Prancisquito Creek at Stanford University, Calif.

Location.--Lat 37°25'24", long 122°11'18", in San Franoisquito Grant at golf course, on 

right bank 1.1 miles downstream from Los Trancos Creek and 1.1 miles west of Stanford 

University Post Office, Santa Clara County.

Drainage area. 37.7 sq mi.

Records available. January 1931 to June 1941, October 1950 to September 1957.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 120 ft (from 

topographic map).

Average discharge. 17 years, 19.6 cfs (14,190 acre-ft per year).

Extremes. Maximum discharge during year not determined; no flow for several months.

1531-41, 1950-57: Maximum discharge, 5,560 cfs Dec. 22, 1955 (gage height, 

13.60 ft); no flow at times each year.

Remarks.--Records good except those for May 18, 19, which are poor. Plow regulated by 

Searsville Lake (capacity, 952 acre-ft). About 900 acre-ft diverted annually to Los 

Trancos and Lagunita Canals for irrigation on the Stanford University campus below 

station.

Revisions. WSP 1345: Drainage area.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

0.17 

.3 

.4 

.5

.2

1.0 

2.6

O.6 

.7

1.0

5.0

7.9

21

1.3 

1.6 

1.9

2.2 131

Discharge, in cubic feet _per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.2

.2

.2

.3

.3

.3

.2

.2

.2

.2

.2

.2

.1

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

4. b

6.3

0.20

12

Nov.

O.I

JT

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1 *. 1

.1

.1

.1

.1

.2

.2

.9

.2

.2

.2

.2

.2

.2

**.!

.1

.1

.1

4.8

0.16

9.5

Dec.

0.1

TT

.1

.1

.2

75" .8

.5

.4

.4

.5

.5

.5

.6

.6

.6

.6

.4

.2

.2

*.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

10.8

0.35

21

Calendar year 1956; Max 753

Jan.

0.3

.4

.2

.1

7T

.1.1

.1

.1

.1

.1

.2

*.7

.1

.1

.1

.1

.1

.1

8.3

.2

.1

.1

.1

.1

*.l

.1

.1

.1

.1

.1

12.7

0.41

25

Feb.

0.1

.1

.1 **.!

0

0

.1

.2

.8

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

*.4

.6

33

44

27

7.9

*17

*34

-

166.6

5.95

33O

Mar.

20

.4

.3

21TT

12

*.9

.5

21

3.8

.6

6.4

5.0

4.0

18

17

18

5.8

.7

.9

2.8

.6

.4

.3

.Z

.2'.Z

.2

.3

.3

.3

175.1

5.65

347

Apr.

0.4

.3

.2

*.2

.2

*

.1

.2

.1

.1

.1

.1

.4

.3

.2

.4

1.5

.4

.4

.3

.3

.3

.3

.3

.2

.2

*.2

.1

.1

8.1

O.27

16

May

0.2

*.2

.2

.1

.1

.1

.2

.2

.2

.2

.2

.2

.4

.5

.5

.4

.2

a!25

100

73

1O9

32

13

8.3

.8

.7

.4

.4

.3

.2

.2

467.4

15.1

927

June

0.4

T2

.2

*.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

(S

0

0

0

0

0

0

0

0

0

0

*0

.1

.1

2.5

0.08

5.0

July

0.1

TT

.1

.1

O

.1

o

o

0

o

o

0

o

0

0

0

o

0

0

0

0

0

.1

.1.1

.1.1

.1.1.1

.1

1.4

O.05

2.8

Aug.

0.1

0

0

o

*o

o

0

0

0

o

o

o

0

0

o

0

o

0

0

0

0

o

o

o

.1

.1

0

0

0

o

o

0.3

O.O1

0.6

Sept.

0

o

0

0

0

0

0

o

o

0

0

.1

*0

o

0

0

0

0

0

0

o

0

o

0

0

0

o

.1

.1.1

0.4

0.01

0.8

Min 0 Mean 24.2 Ac-ft 17,560

Water year 1956-57: Max 125 Min 0 Mean 2.35 Ac-ft 1,7OO

Peak discharge (base, 70O cfs). No peak above base.

* Discharge measurement made on this day.

** Field estimate made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for Sar 

Lorenzo Creek at Hayward.
216 MATADERO CREEK BASIN

Matadero Creek at Palo Alto, Calif.

Location.--Lat 37°25'19", long 122°08'06", In Rlnconada de San Franclsqulto Grant, on 

left bank 10 ft upstream from bridge at Intersection of Lambert and Rose Streets and 

2.0 miles southeast of post office at Palo Alto, Santa Clara County.

Drainage area. 8.10 sq mi.

Records available . July 1952 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 25 ft (from topographic map).

Average discharge. 5 years, 1.08 cfs (782 acre-ft per year).

Extremes. Maximum discharge during year, 28 cfs Feb. 24 (gage height, 4.31 ft); no flow 

for many months.

1952-57: Maximum discharge, 854 cfs Dec. 22, 1955, from rating curve extended 

above 390 cfs on basis of slope-area determination of peak flow; maximum gage height, 

9.88 ft Dec. 23, 1955 (backwater from culvert); no flow for many months each year.

Remarks.--Records poor.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

3.4

3.5

3.6

3.7

3.8 

4.0

1.9

4.6

12

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

.2

.3

.2

.2

.3

0

0

0

0

0

0

0

0

0

0

.2

1.4

0.05

2.8

Nov.

0

O

0

0

0

0

0

0

0

0

0

0

*0

0

.1

.1

0

0

.1.1

.1

0

.2

0

0

.2

*.l

.1

0

*0

1.1

0.04

2.2

Dec.

0

0

0

o

0

Q~.1

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

Jan.

0

0

0

0

0

0

0

*0

0

0

0

2.8

*.4

0

0

0

0

0

0

1.6

0

0

0

0

.2

*0

0

0

0

0

0

5.0

0.16

9.9

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*.l

.1

1.8

*9.1

T74

.9

.1

*5.9

19'. 4

0.69

38

Mar.

0.5

0

.1

0

0

0

*0

0

0~~.7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.3

0.04

2.6

Apr.

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0~.2

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.007

0.4

May

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

_JL

.1

0

*0

0

0

0

0

0

0

0

0

0.8

0.03

1.6

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0~.5

0

0

0

0

0

*0

0

0

0.5

0.02

1.0

July

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956: Max 335' Mln 0 Mean 1.73 Ac-ft 1,260

Water year 1956-57: Max 9.1 Mln 0 Mean 0.08 Ac-ft 59

Peak discharge (base, 50 cfa). No peak above base.

* Discharge measurement or observation of no flow made on this day.

Note. No gage-h&lght record Oct. 31 to Nov. 13; discharge estimated on basis of weather records 

and records for San Franclsqulto Creek at Stanford University.
STEVENS CREEK BASIN 217

Stevens Creek near Cupertino, Calif.

Location. La t 37°18'20", long 122°04'25", In SWij sec. 22, T. 7 S., R. 2 W. , on left bank 

on downstream side of highway bridge, 0.6 mile downstream from Stevens Creek Dam and 

2.5 miles southwest of Cupertino.

Drainage area. 18.0 sq mi.

Records available. January 1930 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 385 ft (from topographic map).

Average discharge. 27 years, 12.3 cfs (8,900 acre-ft per year); median of yearly mean 

discharges, 8.9 cfs (6,440 acre-ft per year).

Extremes. Maximum discharge during year, 173 cfs Dec. 2 (gage height, 3.30 ft); no flow 

Dec. 1, Jan. 18-20.

1930-57: Maximum discharge, 1,420 cfs Dec. 23, 1955 (gage height, 8.25 ft); no 

flow at times during 1930-34, 1936, 1939, 1944, 1947-52, 1957.

Remarks. Records good above 5 cfs and fair below. Flow regulated by Stevens Creek Reservoir beginning in 1936 (usable capacity, 4,000 acre-ft); water released during summer.

Revisions (water years). WSP 1285: Drainage area. WSP 1395: 1930(M) , 1938(M), 1940, 

1941(M), 1952.

Rating table, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second)

(Shifting-control method used Oct. 8-14, Oct. 19 to Nov. 10, Nov. 17 

to Dec. 4, Dec. 7 to Jan. 20, Feb. 2 to Mar. 11, Sept. 26-30)

1.3 0

1.4 .2

1.5 .7

1.6 1.2

1.7

1.8

1.9

2.5 

3.7

2.0 5.9

2.1 10

2.3 21

Discharge, In cubic feet per second, water year October 1956 to Septembe-r 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

6.7

6.3

6.3

5.9

6.3

6.7

2.7

1.2

.7

.4

.3

.3

^.

2.2

9.5

9.1

8.3

7.5

7.8

1.2

.5

.3

.4

1.6

1.2

.4

.3

.4

.4

.7 

.5

96.3

3.11

191

Nov.

0.2

.2

.1

TT

.1

.1

.4

2.0

2.2

2.4

3.0

2.7

*3.5

3.5

4.1

4.1

Ii5

ITS

1.6

2.0

1.8

1.0

.4

.3

.2

42.6

1.42

84

Dec.

0

~7.0

.3

2.8

2.8

1.6

1.2

1.4

2.0

2.0

1.8

1.4

.7

.4

.3

.2

.2

.1

.1

*.7

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0 

2.0

47.5

1.53

94

Calendar year 1956 s Max 261

Jan.

2.0

2.0

2.0

6.4

T7o

.5

.3

.2

.2

.1

.1

.1

.2

.2

.1

.1

.1

0

0

0

a. 4

a. 5

a. 5

a. 5

a. 5

*a.5

al.6

al.8

al.6

al.8 

al.8

27.3

0.88

54

Feb.

al.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.6

1.4

1.4

1.4

1.4

1.4

ii

J,

.1

*.l

.9

4.7

1.0

.5

.4

.5

-

52.5

1.88

104

Mln 0

Mar.

0.4

.4

.3

73

.3

.3

.3

*.3

.9

2.0

4.5

£4- ITT

6.3

4.9

4.3

4.3

4.3

4.3

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

107.8

3.48

214

Apr.

4.7

4.7

4.7

*4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

5.1

5.1

5.1

5.1

5.3

5.3

5.1

4.9

4.3

4.3

4.7

4.9

6.3

7.9

7.5

7.5

7.5

IP.

164.1

5.47

325

May

11

*8.7

8.3

11

12

10

10

11

14

14

14

11

8.7

7.5

7.5

7.1

7.1

7.5

7.9

8.3

6.3

5.1

5.1

4.9

5.1

7.1

8.7

12

13

14 

14

291.9

9.42

579

June

14

11

*9.5

8.7

8.3

8.3

8.3

8.3

8.3

8.3

8.7

9.1

9.1

11

12

9.5

9.1

10

11

11

10

10

11

11

8.7

6.7

6.7

*6.7

6.7

6.3

277.3

9.24

550

July

5.6

4.9

4.9

5.1

6.3

5.3

4.7

179

4.7

4.7

5.1

6.3

6.3

6.7

7.1

11

13

14

14

ii

16

16

14

14

13

12

12

12

12

11

8.7

291.3

9.40

578

Aug.

9.1

11

13

13

12

9.1

*7.5

7.5

7.1

7.1

8.3

8.3

.9

.1

.1

.1

.1

6.7

677

7.1

7.5

6.7

6.7

6.7

6.7

7.1

8.3

8.3

7.5

7.1

6.7

249.1

8.04

494

Sept.

5.9

5.9

5.6

5.6

7.1

8^3

8.3

7.5

5.6

5.6

5.3

7.9

*7.1

6.3

5.9

6.3

7.5

7.9

5.1

4.9

5.6

5.6

5.1

5.1

7.9

1.1

^i

1.0

.9

1.0

163.8

5.46

325

Mean 24.7 Ac-ft 17,950

Water year 1956-57: Max 16 Mln 0 Mean 4.96 Ac-ft 3,590

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and 9 staffgage readings furnished by Santa Clara Valley Water Conservation District.
218 GUADALUPE RIVER BASIN

Alamitos Creek near Edenvale, Calif.

Location. Lat 37°14'08", long 121°52'08", in SW£ sec. 16, T. 8 S., R. 1 E. , on right 

bank 0.6 mile upstream from confluence with Guadalupe Creek and 3.2 miles southwest 

of Edenvale.

Drainage area. 35.0 sq mi.

Records available. January 1930 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 200 ft (from topographic map). Prior to 

Jan. 13, 1952, water-stage recorder and Jan. 13 to Dec. 18, 1952, staff gage, 1,400 ft 

downstream at different daturns. Dec. 19, 1952, to Sept. 30, 1953, water-stage 

recorder and Oct. 1, 1953, to Dec. 23, 1955, staff gage at site 0.2 mile downstream 

and Jan. 3 to May 17, 1956, staff gage at site 0.2 mile upstream at different datums.

Average discharge. 27 years, 17.7 cfs (12,810 acre-ft per year).

Extremes. Maximum discharge during year, 262 cfs Feb. 24 (gage height, 3.82 ft); no flow 

for several months.

1930-57: Maximum discharge, 4,140 cfs Dec. 23, 1955 (gage height, 6.6 ft, from 

floodmarks, site and datum then in use), from rating curve extended above 110 cfs on 

basis of slope-area determination of peak flow; no flow for several months each year 

except 1942-43.

Remarks. Records fair except those for Feb. 23-25, which are poor. Beginning in 1935, 

flow regulated by Calero Reservoir (capacity, 9,213 acre-ft) and Almaden Reservoir 

(capacity, 2,000 acre-ft); water released during summer. Small diversions above 

station.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3U

31

Total

Mean

Ac-ft

Oct.

23

23

23

24

24

24

24

24

23

23

24

24

24

25

25

25

25

25

26

26

26

26

25

20

21

21

21

21

20

12

10

707

22.8

1,400

Nov.

9.3

8.9

7.8

6.4

5.7

4.4

4.7

4.7

3.2

2.0

.6

.3

0

T.6

.6

.9

.9

1.1

.9

.6

.6

.3

.3

.3

0

0

0

0

0

0

65.1

2.17

129

Dec.

(»)

0

0

0

Calendar year 1956: Max 264

Jan.

0

0

0

O

0

o

0

0

0

0

0

0

0

0

0

0

1.4

3.5

3.8

5.7

5.0

4.7

4.4

 4.1

4.1

3.8

3.5

3.8

3.5

3.2

3.2

57.7

1.86

114

Feb.

3.2

3.2

2.9

2.9

2.6

2.6

2.0

2.3

2.3

2.0

2.0

1.7

1.4

1.4

1.4

1.4

1.4

1.4

1.1

*1.1

.9

.9

66

132

47

21

*18

16

-

342.1

12.2

679

Mln 0

Mar.

14

13

12

11

9.6

8.2

*7.8

7.8

6.8

6.0

6.4

8.2

11

14

13

*11

14

14

13

14

15

15

14

14

14

15

15

11

10

9.6

12

359.4

11.6

713

Apr.

13

*12

12

12

12

12

12

13

10

13

15

16

15

18

13

9.1

9.6

17

12

11

10

9.6

12 8.6

13

15

16

17

18

15

390.9

13.0

775

May

*17

21

20

21

22

22

22

24

25

26

26

26

25

25

24

21

20

45

32

13

7.3

9.9

18

19

20

20

21

20

22

24

*24

682.2

22.0

1,350

June

23

21

21

20

19

18

18

18

14

12

14

14

16

19

23

24

14

15

17

20

22

14

.9

.1

0

O

0

0

0

0

397.0

13.2

787

July

(*)

0

0

0

Aug.

(»)

(»)

0

0

0

Sept.

(«)

0

0

0

Mean 25.8 Ac-ft 18,700

Water year 1956-57: Max 132 Mln 0 Mean 8.22 Ac-ft 5,950

Discharge measurement or observation of no flow made on this day.
GUADALUPE RIVER BASIN 219

Guadalupe Creek at Guadalupe, Calif.

Location. Lat 37°13'05", long 121 "54' 35" , in SW£ sec. 19, T. 8 S. , R. IE., on left 

bank 0.5 mile northwest of Guadalupe and 3.5 miles upstream from confluence with 

Alamitos Creek.

Drainage area. 12.7 sq mi.

Records available . January 1930 to September 1957. Published as Los Capitancillos 

Creek at Guadalupe, 1945-53.

Gage. Water-stage recorder and concrete control. Altitude of gage is 325 ft (from topographic map) .

Average discharge. 27 years, 10.8 cfs (7,820 acre-ft per year); median of yearly mean 

discharges, 8.7 cfs (6,300 acre-ft per year).

Extremes.--Maximum discharge during year, 216 cfs Feb. 24 (gage height. 2.10 ft): no flow 

Sept. 9, 10, 21,22.

1930-57: Maximum discharge, 1,330 cfs Jan. 12, 1952 (gage height, 4.22 ft), from 

rating curve extended above 530 cfs: no flow during part of each year except 1937-38, 

1941-45, 1956.

Remarks.--Records good. Flow regulated by Guadalupe Reservoir beginning in 1936 (capaci t y , 3,500 acre-ft); water released during summer. Small diversions above station.

Revisions. WSP 1285; Drainage area.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

0.1

.6

1.6

3.4

1.2 

1.5 

1.7

81

114

Discharge, in cubic feet per second, water year October 1956 to September 1957

Dsy

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Z2

23

24

25

Z6

27

28

29

30

31

TcrtaJ

Mean

Ao-ft

Oct.

1.1

1.0

1.3

1.6

1.5

1.4

1.3

1.4

1.5

1.5

1.6

1.4

1.3

1.3

1.2

1.1

1.1

1.2

1.2

1.1

1.0

1.0

1.2

1.3

1.3

1.2

1.4

1.4

1.3

^~5

£ . o

42.8

1.38

85

Nov.

1.6

1.4

1.4

1.2

1.2

1.2

**1.2

1.2

1.2

1.2

1.2

1.1

1.1

*1.0

1.0

1.0

.8

1.0

.9

1.0

.9

.6

76

1.0

1 0

1.0

.7

.9

.7

.7

31.0

1.03

62

Dec.

0.7

.7

.7

1.1

5.0

2.2

1.5

1.4

1.4

1.3

1.3

1.4

1.4

1.3

1.3

1.4

1.2

1.0

1.0

*1.1

1.2

1.4

1.5

1.5

1.6

1.6

1.6

1.8

1.8

1 . 8

1.9

44.1

1.42

88

Calendar year 1956; Max 257

Jan.

1,1

1.9

2.2

2.4

2.6

3.2

3.0

3.4

3.6

3.4

3.2

6.6

676

3.6

2.8

2.6

2.6

2.6

2.6

5.6

3.6

3.2

3.0

*3.0

3.4

3.6

3.2

3.0

2.6

2.6

2 . 4

100.0

3.23

198

Feb.

2.4

2.6

2.4

2.4

2.4

2.2

274

2.6

2.4

2.4

2.4

2.4

2.4

2.4

2.6

2.6

2.8

2.6

2.6 *2.8

2.8

2.6

46

*42" 114

21

15

14

307.2

11.0

609

Mar.

12

11

10

8.9

8.1

8.1

7.3

773

7.7

7.7

7.7

8.1

8.1

16

10

9.8

8.9

9.3

9.3

9.3

9.3

8.9

8.9

8.9

8.9

8.9

8.9

8.5

8.9

8.9

8.9

282.5

9.11

560

Apr.

8.9

*87T

7.3

7.3

7.0

6.6

6.6

7.0

6.6

6.6

6.6

6.6

7.0

7.3

6.2

6.2

8.1

8.5

7.0

7.0

6.6

6.6

6.6

6.2

6.2

5.6

5.6

5.3

573

5.3

201.8

6.73

400

May

*5.9

7.3

5.6

576

5.6

7.0

7.7

7.7

7.7

8.1

8.5

8.5

8.9

8.9

8.9

9.8

10

15

14

11

10

10

10

10

10

10

10

10

9.8

9 . 8

*11

282.3

9.11

560

June

11

TT

ll

12

12

12

12

11

11

11

11

11

11

11

15

21

19

18

15

16

17

15

19

21

20

18

18

17

18

16

441

14.7

875

July

12

11

*9.8

15

11

21

11

7.7

7.7

8.1

8.1

7.7

8.9

10

9.8

9.8

9.8

9.3

9.3

8.5

9.8

11

10

9.3

8.5

1.8

.7

.6

.5

.4

.4

268.5

8.66

533

Aug.

0.4

.4

.3

.4

.6

.7

*.6

.5

.5

.5

.4

.3

.2

.2

.2

.2

.2

.3

.2

.2

.1

72

.1

.1

.1

.6

1.0

.9

.9

1.2

JjJ,

13.8

0.44

27

Sept.

0.8

.1

.1

.1

.2

.2

.1

.1

0

0

*.l

.3

.6

.6

.8

.8

.9

.7

.4

.2

0

0

.1

.2

.3

.3

.9

1.6

1.1

1.0

12.6

0.42

25

Min 0.6 Mean 17.9 Ac-ft 13.03O

Water year 1956-57: Max 114 Kin 0 Mean 5.56 Ao-ft 4,020

Discharge measurement made on this day. 

* Field estimate made on this day.
220 GUADALUPE RIVER BASIN

Los Gates Creek at Los Gates, Calif.

Location. Lat 37°12'30" (revised), long 121°59'15", in NE£ sec. 29, T. 8 S., R. 1 W., on 

left bank 0.3 mile downstream from Trout Creek, 0.5 mile downstream from Lexington 

Reservoir, and 1.0 mile south of Los Gates.

Drainage area. 38.9 sq mi.

Records available . January 1930 to May 1944, October 1953 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 460 ft (from topographic map). January 

T930 to September 1943 at site 1 mile downstream and October 1943 to May 1944 at site 

0.5 mile downstream, at different daturas.

Average discharge. 17 years (1930-43, 1953-57), 41.6 cfs (30,120 acre-ft per year).

Extremes. Maximum discharge during year, 73 cfs Apr. 17 (gage height, 3.90 ft); minimum 

daily, 0.3 cfs Aug. 24, Sept. 22-26.

1930-44, 1953-57: Maximum discharge, 7,110 cfs Feb. 27, 1940 (gage height, 14.71 ft, 

site and datum then in use), from rating curve extended above 2,300 cfs by logarithmic 

plotting; no flow for part of most years.

Remarks.--Records good except those for period of no gage-height record, which are poor. 

Plow regulated by Lexington Reservoir beginning in 1953 (capacity, 21,475 acre-ft). 

Several diversions for irrigation above station; diversion by San Jose Water Works 

during year, 10,600 acre-ft. Records of chemical analyses for the water year 1957 are 

given in WSP 1523.

Rating tables water year 1956-57 (gage height, In feet, and discharge

In cubic feet per second) 

(Shifting-control method used Feb. 7-22)

2.3

2.4

2.5

2.6

Oct. 1 to Feb. 24

1.0 2.8

2.2 3.1

3.8 3.4

6.0 3.7

Feb. 25 to Sept. 3O

3.0 

3.3

2.3 

6.6

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

37

32

35

37

39

34

40

28

30

30

31

32

44

37

25

29

30

30

28

39

43

31

31

36

41

40

54

3?

31

33

35

1,081

34.9

2,140

Nov.

44

38

44

42

35

5236"

36

36

37

42

40

40

*39

37

41

48

40

40

40

40

40

39

39

37

37

37

39

35

34

1,184

39.5

2,350

Dec.

32

33

44

36

30

30

37

37

37

47

38

36

37

40

40

37

40

39

30

*28

30

32

30

30

25_

26

32

36

33

37

41

1,080

34.8

2,140

Calendar year 1956: Max 968

Jan.

34

30

32

34

17

7.6

5.8

5.

5.

4.

4.

9.

5.

3 ,

2 .

lti!i.

29~

34

40

3T

*32

2O

16

21

17

9.2

7.6

6.8

475.3

15.3

943

Feb.

6.2

5.1

4.0

3.6

3.3

3.0

2.8

3.3

3.0

2.7

2.5

2.1

2.0

1.7

1.4

1.1

1.1

*1.1

1.0

1.0

1.2

1.7

12

28~8".7

3.5

.9

79

108.9

3.89

216

Mar.

21

33

33

31

30

27

24

*23

18

li

19

22

28

27

26

28

28

25

23

19

 17

16

15

17

27

32

27

30

33

29

24

763

24.6

1,510

Apr.

-? 

27

33

*30

30

35

35

30

31

32

31

36

46

58

63

65

63

61

33

57

53

30

29

30

34

35

35

38

34

35

36

1,185

39.5

2,350

May

*36

23

29

30

32

34

34

32

25

12

12

3.8

3.8

5.0

5.0

6.2

2.7

477

25

33

32

32

35

3736"

35

32

17

12

7.1

4.5

667.8

21.5

1,320

June

3.8

3.6

*3.4

3.8

4.1

4.3

3.2

3.2

4.1

3.2

4.3

2.2

2.0

5.5

4.8

2.5

2.2

1.7

3.0

3.6

1.7

1.6

1.5 1.4-

1.2

1.6

4.3

4.3

2.7

1.9

90.7

3.02

180

July

2.0

*1.7

1.2

1.1

1.1

1.1

1.0

1.0

1.0

.9

1.0

.9

.9

J.o

1.0

1.0

.8

.8

1.2

1.0

1.0

1.6

~79 2.8

.7

.7

2.0

.6

76

.6

.6

33.8

1.09

67

Aug.

0.6

.5

.5

.5

.5

.5

*.5

.5

.5

.6

1.1

2.3

2.3

3.2

3.7

3.0

3.0

2.0

.5

.4

.4

.4

.4

.3

.4

.4

.4

.8

1.2

.6

.9

32.9

1.06

65

Sept.

0.8

.6

.5

.7

1.9

2.0

1.5

.9

.8

.8

*. '

7 '

.3

1.0

5.0

2TO

1.0

25.6

0.85

51

Min 7.6 Mean 74.2 Ac-ft 53,830

Water year 1956-57: Max 65 Min 0.3 Mean 18.4 Ac-ft 13,330

* Discharge measurement made on this day.

Note. No gage-height record Sept. 13-3O; discharge estimated on basis of 1 discharge measurement, 

weather records, and records for Saratoga Creek at Saratoga.
GUADALUPE RIVER BASIN 221

Guadalupe River at San Jose, Calif.

Location. Lat 37°20'00", long 121 0 54'00", at San Jose, Santa Clara County, on right bank 

100 ft downstream from Los Gatos Creek.

Drainage area. 131 sq mi.

Records available.--January 1930 to September 1957. Prior to 1945, published as Guadalupe 

Creek at San Jose.

Gage. Water-stage recorder. Altitude of gage is 80 ft (from topographic map).

Extremes.--Maximum discharge during year, 666 cfs Feb. 24 (gage height, 7.04 ft); no flow 

for several months.

1930-57: Maximum discharge, 8,680 cfs Feb. 27, 1940 (gage height, 11.88 ft), from 

rating curve extended above 3,200 cfs by logarithmic plotting; no flow for parts of 

each year.

Remarks. Records fair. Flow extensively regulated by reservoirs in headwaters beginning 

in 1936 (combined capacity, 42,500 acre-ft in 1954) with water released during summer 

for percolation in spreading basins on tributaries. Diversions of 10,600 acre-ft during year by San Jose Water Works for urban use (see Los Gatos Creek at Los Gatos, preceding page). Diversion of 5,020 acre-ft into Alamltos Percolation Ponds from Coyote 

Creek basin during year.

Rating table, water year 1956-57 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Jan. 9, 10, 12-14)

3.0 

3.2 

3.4 

3.7

0

.6 

1.4 

3.2

4.0 

4.2 

4.4 

4.7

6.0

9.3

15

33

5.0 

5.3 

5.6 

6.0

119

190

305

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18

19

SO

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

(*)

0

0

0

Dec.

(*)

0

0

0

Jan.

0

0

0

0

0

0

0

0

.2

.2

0

30

*13

.2

0

0

0

0

0

11

.3

0

»0

0

7.1

2.1

0

0

0

0

0

64.1

2.07

127

Feb.

0

0

0

0

0

.2

1.6

2.6

2.2

2.0

2.1

2.5

2.3

.5

0

0

.9

2.1

2.4

2.3

*11

5.1

74

293

124

32

*16

13

-

591.8

21.1

1,170

Calendar year 1956: Max 1,690 Min 0

Mar.

5.4

1.2

.8

1.0

0

0

*0

0

0

5.8

0 /

0

0

0

0

0

0

0

0

0

.6

4.7

5.3

5.3

5.2

0

0

0

0

0

0

35.3

1.14

70

Apr.

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

8.1 TTT

2.0

3.6

2.0

1.5

.4

0

0

.2

0

1.3

0

*0

26.8

0.89

53

May

0

0

0

June

(*)

0

G

0

July

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

C)

0

0

0

Mean 57.2 Ac -ft 41,530

Water year 1956-57: Max 293 Mln 0 Mean 1.97 Ac-ft 1,420

* Discharge measurement or observation of no flow made on this day.
22E GUADALUPE RIVER BASIN

Saratoga Creek at Saratoga, Calif.

Location. Lat 37°15'15", long 122°02'25", in Quito Grant, on right bank on downstream 

side of private road bridge, 0.5 mile southwest of Saratoga, Santa Clara County, and 

0.7 mile downstream from diversion dam.

Drainage area.--8.97 sq mi.

Records available. October 1933 to September 1957. Prior to October 1951, published as 

Campbell Creek at Saratoga.

Gage. Water-stage recorder and concrete control. Altitude of gage is 500 ft (from topographic map).

Average discharge.--24 years, 8.82 cfs (6,390 acre-ft per year).

Extremes. Maximum discharge during year, 225 cfs Feb. 24 (gage height, 3.42 ft); no flow 

during several months.

1933-57: Maximum discharge, 2,730 cfs Dec. 22, 1955 (gage height, 6.40 ft), from 

rating curve extended above 510 cfs on basis of slope-area determination of peak flow; 

no flow during part of each water year, except possibly 1941, 1943, 1945.

Remarks.--Records good. The San Jose Water Works diverted water above station during the 

water year as shown below.

Month

February. .................

March. .................... 

April .....................

Diversion 

(acre-feet )

91

88

97

80

202

191

Month

July.....................

September . ...............

Diversion 

(acre-feet)

206

184

93

57

45

1,410

Revisions (water years). WSP 1395: Drainage area. WSP 1445: 1940, 1952(M).

Rating table, water year 1956-57 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Mar. 29 to May 18)

1.32

1.4

1.5

1.6

.5

1.8

1.7 4.4

1.9 12

2.2 30

2.5 

3.0 

3.5

129

245

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

Q- 0

.1

1.1

1.0

.6

0

.4

.1

.2

.1

.3

.1

0

0

0

0

0

.1

0 

0

0

.7

.4

.1

0

.6

.1

0

2.2

9.0

0.29

18

Nov.

0.2

.4

.4

0

7J

.5

0

.1

0

0

.1

0

0

*0

0

0

.1

0

0

.1

0

0

0

0

0

0

0

0

0 

*0

1.9

0.06

3.8

Dec.

0

0

o

0

2.8

1.3

.1

.5

.2

«.l

.3

.3

.3

.3

.2

.1

.1

0

0

.4

*.l

0

.2

.2

.1

0

0

0

0 

0

.1

7.7

0.25

15

Calendar year 1956 : Max 198

Jan.

0.1

.1

0

0

0

0

0

.4

.2

.1

0

16

*14

3.6

1.0

.6

.4

.4

.4

12

3.0

1.4

1.1

.9

*2.6

2.4

1.3

1.0

.5

.3 

.3

64.1

2.07

127

Feb.

0.3

1.2

.3

.2

.2

.3

.8

2.4

.2

.2

.1

.1

.1

.1

.1

.1

.1

*0 $

.1

2.0

1.6

*68

134

TJ7

24

16

*16

-

315.5

11.3

626

Mar.

10

5.8

6.6

8.6

5.8

5.4

4.4

*4.7

10

6.1

3.9

9.3

6.4

3.9

8.9

*7.5

5.1

4.4

3.9

3.4

3.1

2.3

1.8

1.5

2.1

1.7

1.5

1.0

1.4 

.5

_._4

141.4

4.56

280

Apr.

0.3

0

0

*.l

.1

.2

.4

.2

.1

.1

0

0

.2

4.6

.2

.5

e.e

9.6

375

1.5

.8

.5

.4

.4

.3

.2

.1

.2

.2 

0

31.3

1.04

62

May

*0.1

372

.2

.2

.1

.2

.1

3.6

2.3

.4

.4

.2

.3

.4

.3

.2

,2

22

T9- 24

15

11

9.3

7.5

6.1

4.7

4.1

3.1

2.8

2.1

1 . 8

144.9

4.67

287

June

1.7

T7I

*.6

.8

.9

.5

.4

.4

.3

.3

.1

.2

0

.2

.4

.2

.3

.2

.1

0

0

0

0

0

0

0

0

0

0 

0

9.0

0.30

18

July

0

.1 *o

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0 

0

0

0.2

0.006

0.4

Aug.

(*)

0

0

0

Sept.

0

0

0

0

°

0

0

0

0

0

0

*o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.2

.6 

0

1.0

0.03

2.0

Mln 0 Mean 12,6 Ac-ft 9,130

Water year 1956-57: Max 134 Mln 0 Mean 1.99 Ac-ft 1,440

Peak discharge (base, 110 cfs). --Feb. 24 (6:30 p.m.) 225 cfs (3.42 ft).

* Discharge measurement or observation of no flow made on this day.
COYOTE CREEK BASIN 223

Coyote Creek near Madrone, Calif.

Location.--Lat 37°10'06", long 121°38'55", near southeast corner of La Laguna Seea Grant, 

on right bank 1.2 miles downstream from Anderson Dam and 1.8 miles northeast of 

Madrone, Santa Clara County.

Drainage area. 194 sq mi.

Records available . October 1902 to September 1912, December 1916 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 375 ft (from topographic map). Prior to Mar. 1, 1950, staff gages and water-stage recorders at various 

sites within 1.4 miles upstream at different datums.

Average discharge.--51 years, 69.2 cfs (50,100 aere-ft per year); median of yearly mean 

discharges, 56 cfs (40,500 acre-ft per year).

Extremes.--Maximum discharge during year, 127 cfs July 14 (gage height, 2.97 ft); minimum daily, 1.6 cfs Feb. 1.

1902-12, 1916-57: Maximum discharge, 25,000 cfs probably Mar. 7, 1911 (record furnished by Duryea, Haehl & Oilman) ; no flow at times.

Remarks.--Records good. Regulation by Coyote Reservoir beginning in 1936 (capacity,

24,560 acre-ft) and by Anderson Reservoir beginning in 1950 (capacity, 75,000 acre-ft); 

water released during summer. Diversion of 1,820 acre-ft to percolation ponds during 

year. Records of chemical analyses for the water year 1956 are given in WSP 1453.

Revisions (water years).--WSP 1345: 1932, 1935(M).

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

1.6 1.5

1.7 2.0

1.8 2.8

1.9

2.0 

2.2

4.0

7.2

24

2.4 50

2.7 93

3.0 127

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

62

62

62

62

60

56

54

54

56

56

56

58

58

56

54

52

52

52

53

54

53

52

54

56

56

56

56

53

50

15 

20

1,650

53.2

3,270

Nov.

71

71

68

62

58

52

*47

50

52

54

59

60

58

59

60

59

56

56

54

56

60

50

52

56

58

59

59

58

59

58

1,731

57.7

3,430

Dec.

58

59

59

58

52

42

46

46

44

40

38

38

38

38

38

38

38

36

*36

34

30

30

29

29

29

29

29

29

29

29

29

1,197

38.6

2,370

Jan.

29

29

28

30

54

34

34

33

30

30

30

33

15

7.2

6.2

5.8

6.2

6.6

6.6

7.8

7.8

8.5

*10

11

8.8

7.7

17

17

16

ill

549.0

17.7

1,090

Feb.

1.6

6.7

19

18

16

28

38

34

34

34

34

38

46

46

48

58

58

56

56

58

59

47

3.4

3.9

2.4

5.0

7.8

10

-

865.8

30.9

1,720

Mar.

no

To

10

10

10

12

15

16

17

17

18

13

15

17

17

17

17

18

18

18

18

18

18

18

18

18

18

18

29

40

40

548

17.7

1,090

Apr.

*41

42

36

42

40

31

33

30

30

33

42

50

52

53

53

35

24

23

26

26

23

26

35

47

58

60

60

60

59

*60

1,230

41.0

2,440

May

68

74

72

72

74

74

76

78

80

78

78

77

80

81

80

81

78

78

80

74

70

68

68

68

68

56

64

68

71

74

*78

2,286

73.7

4,530

June

81

80

80

78

5T

84

84

84

86

86_

86

85

85

85

85

85

84

84

83

83

80

78

81

81

78

80

80

78

78

78

2,463

82.1

4,890

July

80

*80

78

14

90

90

86

85

88

94

95

109

122

123- 125

114

108

107

106

107

106

99

95

95

98

109

117

117

120

120

115

3,162

102

6,270

Aug.

117

117

120

120

120

119

*119

117

117

119

119

122

123

123

123

122

122

122

122

116

112

111

112

109

109

106

105

105

105

105

104

3,582

116

7,100

Sept.

105

104

101

100

101

104

103

100

100

101

noi

101

98

97

95

94

93

93

90

92

92

92

90

90

90

92

90

85

86

86

2,866

95.5

5,680

Calendar year 1956: Max 90 Min 0 Mean 40.9 Ac-ft 29,680

Water year 1956-57: Max 125 Min 1.6 Mean 60.6 Ac-ft 43,880

* Discharge measurement made on this day.
224 COYOTE CREEK BASIN

Coyote Creek near Edenvale, Calif.

Location. Lat 37°16'15", long 121°47'55", at east boundary of Santa Teresa Grant, on left 

bank at "The Narrows," 1.5 miles northeast of Edenvale, Santa Clara County, and 7 miles 

south of San Jose.

Drainage area. 229 sq ml.

Records available. October 1916 to September 1957.

gage. Water-stage recorder and concrete control. Altitude of gage Is 190 ft (from 

Topographic map). Prior to Dec. 14, 1934, staff gage at site 250 ft upstream at same 

datum.

Extremes. Maximum discharge during year, 47 cfs Feb. 25 (gage height, 2.91 ft); no flow 

for several periods.

1916-57: Maximum discharge, 10,000 cfs Feb. 10, 1922 (gage height, 12.8 ft, from 

floodmarks), from rating curve extended above 4,900 cfs parallel to 1917 curve defined 

by current-meter measurements to 8,400 cfs; no flow at times during each year.

Remarks. Records good. Water pumped from wells along creek above station for irrigation. 

Flow regulated by Coyote Reservoir beginning in 1936 (capacity. 24,560 acre-ft), by 

Anderson Reservoir beginning in 1950 (capacity, 75,000 acre-ft), and by detention in 

percolating reservoir 6 miles above station; water released during summer. Diversion 

between stations near Madrone and near Edenvale during year: 5,020 acre-ft to 

Alamitos Percolation Ponds in Guadalupe River Basin and 4,380 acre-ft to Evergreen 

area.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

Z.16

Z.Z

Z.3

Z.4

2.5

2.6

Z.2

5.5 

1Z

2.7 

Z.8 

3.0

ZO

31

63

Discharge, Ln cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

3

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Z5

Z6

27

Z8

Z9

30

31

Tota]

Mean

Ac-ft

Oct.

7.0

7.0

7.0

8.1

8.7

8.7

7.5

7.0

6.5

6.5

7.0

7.0

7.5

8.1

6.5

7.0

6.0

5.5

4.2

4T6

5.5

5.5

6.5

6.0

6.5

6.0

6.0

4.6

5.0 

4.6

5.5

199.1

6.4Z

395

Nov.

3.3

4T

3.9

3.9

4.Z

3.9

*4.2

3.9

3.6

3.3

3.3

3.3

5.0

67B- 7.0

6.0

4.6

3.9

3.6

3.3

3.3

3.9

6.0

4.6

4.2

3.9

3.9

3.9

3.6 

3.6

125.8

4.19

250

Dec.

3.6

3.3

3.3

3.3

6.6

3.6

3.6

3.6

3.9

3.9

4.2

4.Z

4.2

3.9

3.6

4.Z

4.2

4.Z

*4.Z

4.Z

4.2

3.9

3.6

3.0

Z.7

Z.Z

1.6

1.5

1.5

1.1

-^ 

105.9

3.42

Z10

Jan.

0.5

.3

.3

.8

Z.4

Z.Z

2.0

1.8

7.0

3.9

Z.4

Z.Z

~I2 25

1.8

.Z

00~

0

0

0

0

*0

0

0

0

0

0

1.3

Z.7 1 8

70.6

 Z.28

140

Feb.

2.8

0

7J

0

0

.3

1.3

1.8

.Z

0

0

0

0

0

0

0

0

0

0

*0

0

.6

6.1

4.6

33

9.5

1.3

.1

-

61.6

Z.2

122

Mar.

0

CJ

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

TT5- 2. '4

.6

.4

.Z

.Z

0

.1

0

0

5.4

0.17

11

Apr.

Z.4

*3.9

4.2

5.0

2.4

1.3

.2

00~

0

.5

10

12

Tz

12

11

11

8.7

3.9

5.5

6.5

6.0

3.6

.5

9.7

1Z

11

10

6.5

*7.0

178.8

5.96

355

May

8.0

13

13

14

1Z

13

12

1Z

14

15

16

18

T4

12

12

13

11

7.0

11

10

8.7

10

8.7

7.0

6.5

10-

6.0

1Z

12

1Z

*13

355,9

11.5

- 706

June

14

13

13

14

14

14

15

16

17

17

17

16

16

16

15

16

15

14

14

13

13

1Z

11

8.7

8?f

11

12

1Z

12

13

41Z.4

13.7

818

July

13

*13

13

17

18

16

15

16

16

16

18

19

20

20

24

26

Z2

20

19

18

16

14

Tz~ 1Z

13

13

13

14

14

13

14

507

16.4

1,010

Aug.

15

15

14

14

13

13

*14

14

15

15

17

16- 18

14

15

18

17

17

16

15

15

15

15

14

14

14

14

14

14

14

15

463

14.9

918

Sept.

14

14

16

17

16

16

17

15

16

16

*15

15

15

15

15

15

15

14

14

15

14

14

14

14

14

14

14

14

15

14

446

14.9

885

Calendar year 1956 : Max 105 Mln 0 Mean 9.85 Ac-ft 7,150

Water year 1956-57 : Max 33 Mln 0. Mean 8.03 Ac-ft 5.8ZO

'Discharge measurement or observation of no flow made on this day.
ALAMEDA CREEK BASIN 225

Alameda Creek near Niles, Calif.

Location. Lat 37°35'14", long 121°57'35", in NW£ sec. 15, T. 4 3., R. 1 W., on right bank 

0.3 mile downstream from railroad bridge and 1.2 miles northeast of Niles.

Drainage area. 633 sq mi.

Records available. October 1916 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 100 ft (from 

Topographic map). Prior to Dec. 28, 1923, water-stage recorder at site 800 ft 

upstream at different datum.

Average discharge. 40 years (1916-19, 1920-57), 85.5 cfs (61,900 acre-ft per year).

Extremes. Maximum discharge during year, 970 cfs Feb. 25 (gage height, 5.05 ft); no flow 

during several months.

1916-57: Maximum discharge, 29,000 cfs (revised) Dec. 23, 1955 (gage height, 

14.9 ft); no flow at times.

Revisions.--The figures of maximum discharge for some water years have been 

revised, as shown in the following table. They supersede figures published in the 

water-supply papers indicated.

WSP

1215 

1245, 1260-D 

1445

Water 

year

1951 

1952 

1956

Date

Nov. 19, 1950 

Jan. 12, 1952 

Dec. 23, 1955

Discharge 

(cfs)

18,400 

24,300 

29,000

Gage height 

(feet)

t!2.5 

13.92 

14.9

t Prom floodmarks.

Remarks. Records good. Plow regulated by Calaveras Reservoir beginning in 1925 (usable 

capacity, 96,800 acre-ft, most of which is diverted from San Francisco water supply). 

Small diversions for other uses above station. Records of chemical analyses, water 

temperatures, and suspended sediment loads for the water year 1957 are given in 

WSP 1523.

Cooperation. Water-stage recorder-graph furnished by city and county of San Francisco.

Revisions (water years). Revised figures of discharge, in cubic feet per second, for 

high-water periods in the water years 1951, 1952, and 1956, superseding those 

published in WSP 1215, 1245, 1260-D, and 1445, are given herewith:

Nov 

Jan 

Jan 

Dec 

Dec

19, 195C 

11, 1952 

12, 1952 

23, 1955 

24, 1955

Month

November 1950 ................

Calendar year 1950. ........

 Water year 1950-51 . ........

Water year 1951-52 .........

Calendar year 1952 .........

December 1955 ................

Calendar year 1955 .........

Water year 1955-56 .........

.

Cfs -days

17, 

46, 

58,

79,

146, 

141,

45, 

48, 

107,

431 

178 

101

921 

797 

871

549

286 

944

9 

2 

5

4

5 

9

6

8

16 

23

10

,460 

941 

,400 

,900 

,700

Maximum

8,460 

8,460 

8,460

16,400 

16,400 

16,400

23,900 

23 , 900 

23,900

Minimum

0.1 

0 

0

101 

0.9

1.0

1.8 

0 

0

Mean

581 

127 

159

2,578 

401 

388

1,469 

132 

295

Runoff in 

acre-feet

34,580 

91,600 

115,200

158,500 

291,100 

281,400

90,350 

95,780 

214,100

Note. Figures of discharge at Indicated time, published in WSP 1260-D, are too low
226 ALAMEDA CREEK BASIN 

Alameda Creek near Niles, Calif.--Continued

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

3.5

4.0 

4.5 

5.0

112

280

560

930

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

~

0.5

1-0

1.3

.9

.9

.5

,6

.7

.6

.3

.2

.0

1.2

1.3

1.0

.9

.8

.8

.6

.6

.5

a, 6

a. 6

a. 6

a3

a9

alO

a!2 

a!2

a!8

88.6

2.86

176

Nov.

19

19

20

22

23

24

24

24

25

25

27

28

28

29

*30

11

4.9

4.0

3.4

3.4

3.1

3.0

3.1

3.1

3.0

3.0

3.1

26

52 

59

552.1

18.4

1,100

Dec.

15

5.4

4.9

479

5.1

5.1

6.1

18

22

23

24

27

26

27

!§

20

19

9.1

*6.1

5.2

9.4

15

15

15

17

17

16

7.8

6.1 

5 4

s!i

4H9.7

13.9

852

Jan.

4.9

4.9

4.7

47?

5.6

5.9

5.9

6.3

5.9

5.4

5.4

6.1

9.7

12

11

7.2

7.2

7.0

6.3

13

~9.7 16

*7.8

7.2

7

6.8

6.3

6.1

5.4 

5.1

5.1

221.8

7.15

440

Feb.

4.7

4.7

4.4

4.4

4.2

4.0

4.4

4.7

4.7

4.4

4.0

3.8

3.7

3.6

3.6

3.7

3.6

3.8

3.6

5.4

*4.0

3.4

76

47

698

350

149

100

-

1,508.8

53.9

2,990

Mar.

89

64

50

44

52

49

*41

32

29

27

25

20

15

*12

11

10

8.8

8.0

7.2

7.0

6.8

6.1

5.9

5.2

5.1

4.9

4.9

4.4

*4.4

4.4

4.5

657.6

21.2

1,300

Apr.

4.4

4.2

4.2

3.8

4.4

3.7

3.2

5.1

8.8

6.9

2.8

2.8

2.6

To

4.0

3.8

4.2

~?.4 11

6.5

5.2

4.5

4.2

3.8

3.6

2.8

2.6

*2.6

2.8

2.7

134.6

4.49

H67

May

2.2

3.1

2.7

3.2

3.1

2.7

2.6

2.4

2.3

4.4

5.8

4.4

3.7

4.2

3.7

2.8

2.7

15

42

27

84

39

19

12

9.4

7.8

6.8

5.4

*4.4

3.7

3 2

334.7

10.8

664

June

 3.6

4.2

378

3.4

2.7

2.4

2.1

1.9

1.8

1.5

1.4

1.4

1.3

1.2

1.0

1.2

1.1

1.6

1.3

1.0

1.1

0.9

.7

.7

.6

.4

.5

*.2

.3

_._!

45.4

1.51

90

July

0.2

.1

.6

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.1

0.04

2.2

Aug..

(*)

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956 : Max 5,300 Hln 0.2 Mean 173 Ac-ft 125,800

Water year 1956-57 : Max 698 Hln 0 Mean 10.9 Ac-ft 7,880

* Discharge measurement or observation of no flow made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

nearby stations.
SAN LORENZO CREEK BASIN 227

San Lorenzo Creek at Hayward, Calif.

Location. Lat 37°41', long 122"04', in San Lorenzo Grant, on right bank at bridge on 

B Street, just outside city limits of Hayward, Alameda County, 0.5 mile downstream 

from Crow Creek.

Drainage area. 38.0 sq mi.

Records available. January to September 1940, October 1946 to September 1957.

Gage. Water-stage recorder and concrete control (control ineffective since 1952 due to 

gravel fill). Datum of gage is 133.16 ft above mean sea level, datum of 1929. January 

to September 1940, wire-weight gage on bridge at present site and datum.

Average discharge.--11 years (1946-57), 13.2 cfs (9,560 acre-ft per year); median of 

yearly mean discharges, 5.2 cfs (3,800 acre-ft per year).

Extremes.--Maximum discharge during year, 332 cfs May 18 (gage height, 5.97 ft); no flow 

during several months.

1940, 1946-57: Maximum discharge, 4,790 cfs Dec. 22, 1955 (gage height, 20.82 ft, 

from floodmarks), from rating curve extended above 1,800 cfs on basis of slope-area 

determination of peak flow; no flow during part of each year.

Flood of Jan. 24, 1942, reached a stage of 15.7 ft, from floodmarks (discharge, 

about 4,200 cfs).

Remarks. Records good. A few very small diversions above station. 

Revisions (water years). WSP 1345: 1940(M).

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

3.9

4.0 

4.2

3.0 

7.0

4.5. 

5.0

47

110

Discharge, in cubic feet per-second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

1.6

1.4

2.5

1.2

.4

.2

.2

.2

.2

.2

.9

1.0

.9

.7

.7

.6

.4

.4

.6

.5

.4

.4

.3

.5

.6

.9

2.8

1.8

1.8

15

4.4

43.7

1.41

87

Nov.

1.3

.9

.7

~2.9 

.6

.7

.6

.5

.5

.6

.7

.9

.7 *.7

.7

.7

1.0

.8

.5

.4

TS

.7

.5

.6

.6

.6

.6

.6

.6

22.5

0.75

45

Dec.

 &0.6

.6

1.2

5.9

2.2

1.3

.9

1.0

.9

1.2

1.3

1.4

1.4

1.4

1.3

1.3

*1.3

1.4

1.4

1.4

1.6

1.6

1.4

1.6

1.8

2.0

2.2

2.2

2.2

2.2

46.8

1.51

93

Calendar year 1956 : Max 779

Jan.

2.5

2.5

2.5

2.8

3.3

3.0

2.8

3.8

1.4

1.2

1.0

7.9 *15

1.3

.9

.8

.6

.5

TF

< §

4.0 *2.2

1.8

1.6

2.0

3.0

1.6

1.4

1.4

1.4

1.3

102.0

3.29

202

Feb.

1.3

T7B

1.4

1.4

1.4

1.4

2.6

4.4

1.8

1.6

1.8

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.4

1.3

4.2

2.7

*9.9

12

T2

7.4

4.8

9.4

_

-------

95.5

3.41

189

Mar.

*7.0

10~3.6

20

54

22

*12

9.4

21

11

7.6

10

.4

.5

.4

.2

.0

.0

.6

.2

* .8

.4

.0

.0

.4

.4

.0

.4

.4

.4

.2

293.3

9.46

582

Apr.

4.0

3.6

3.3

3.0

3.0

3.0

2.5

2.5

2.5

2.5

2.5

2.5

2.5

7.2

2.8

2.5

8.1

~5.6 19

4.4

4.0

3.6

3.6

3.3

3.0

*2.5

2.2

2.0 2~^

2.0

115.2

3.84

228

May

2.2

6.5

2.8

2.2

1.8

1.8

1.8

2.5

3.6

2.8

2.2

2

2.2

4.4

2.2

1.6 TZ

72

27

41

45

17

11

8.2

7.0

6.0

4.8

4.0

*3.6

4.0

3.6

298.4

9.63

592

June

3.3

370

2.8

2.2

2.2

2.5

2.5

2.5

2.5

2.2

1.8

1.6

1.3

1.2

1.2

1.3

.9

.6

.4

.7

.8

.6

.3

.1

.2

.4

.3 *.2

.3

.2

40.1

1.34

80

July

0.3

.2

.2

.2

.1

.1

0

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

.2

.4

.9

.9

.6

.4

.3

.3

.4

5.7

0.18

11

Aug.

 30.4

0

0

.1

.1

0

*0

0

0

0

.1

.1.1.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

.4

.4

.2

5.1

0.16

10

Sept.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

**.2

.2

.2

.3

.2

.3

.3

.3

.3

.3

0_

0

0

0

0

O

0

0

0

0

0

4.4

0.15

8.7

Min 0 Mean 21.0 Ao-ft 15,260

Water year 1956-57 : Max 72 Min o Mean 2.94 Ac-ft 2,130

Peak discharge (base, 35O cfs). No peak above base.

Discharge measurement or observation of no flow made on this day. 

* Field estimate made on this day.

510521 O - 59 -Ib
228 PACHECO CREEK BASIN

San Ramon Creek at San Ramon, Calif.

Location. Lat 37°46'20", long 121°59'40", in sec. 8, T. 2 S., R. 1 W., on right bank 

0.2 mile downstream from Bollinger Creek and 1.0 mile southwest of San Ramon.

Drainage area. 5.89 sq mi.

Records available. October 1952 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 530 ft (from 

Topographic map).

Average discharge. 5 years, 2.41 cfs (1,740 acre-ft per year').

Extremes. Maximum discharge during year, 169 cfs May 18 (gage height, 3.74 ft); no flow 

July 5 to Sept. 30.

1952-57: Maximum discharge, 1,350 cfs Dec. 22, 1955 (gage height, 14.2 ft, from 

floodmarks), from rating curve extended above 150 cfs on basis of computation of peak 

flow through culvert; no flow several months each year.

Remarks. Records good. Ho regulation or diversion. 

Revisions (water years). WSP 1445: 1953-54(M).

Rating tables, water year 1956-57 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 29 to Dec. 5)

Oct. 1 to Nov. 28 Nov. 29 to Sept. 30

0.9 0

1.0 .2

1.1 .5

1.2 1.1

1.3 2.0-

1.4

1.5 

1.7 

2.0

3.8 

8.0

1.5 0

1.6 .5

1.7 1.6

1.8 3.6

1.9

2.0 

2.2

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.5

.1 35 

~~£ n

O .O

48.3

1.56

96

Nov.

~1.4

.2

.2

.2

.3

.2

.1

72

.2

.2

.2

.2

.2

*.2

.2

.2

.2

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

7.7

0.26

15

Dec.

0.2

.2

.3

.4

^

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

*.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

8.2

0.26

16

Calendar year 1956: Max 94

Jan.

~73 0.3

.3

.3

.3

.3

.3

.4

.4

.3

.3

.7

2.0

.6

.5

.4

.4

.4

.4

4.7

.6

*.5

.6

.5

.7

.7

.5

.5

.5

.5

.4

19.6

0.63

39

Feb.

~0.4

.4

.4

.4

.4

.6

.8

.5

.6

.5

..4

.4

.4

.4

.4

.4

.4

.4

.4

*.8

.7

*4.2

~3.1 12

1.9

1.3

3.3

36.4

1.30

72

Mln 0

Mar.

*1.8 'l.l

272

3.1

14

4.3

2.6

2.1

8.3

2.6

2.1

2.6

2.3

1.9

2.9

2.1

1.9

1.6

1.6

1.4

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

*1.1

1.2

1.4

75.9

2.45

151

Apr.

1.1

1.0

1.0

1.0

.8

.8

.8

.8

.8

.8

.8

.8

.8

1.4

.8

.8

1.1

2.1

170

.8

.8

.7

.7

.7

.6

*.6

.6

.5

75

.5

25.5

0.85

51

May

0.5

.8

.6

.5

.4

.5

.6

.6

.7

.7

.6

.6

.6

.8

.6

.6

.6

30

T.9

19

11

3.6

2.4

2.1

1.9

1.6

1.4

1.3

*1.3

1.2

1.2

94.2

3.04

187

June

1.1

T7T

1.0

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.6

.6

.7

.7

.6

.6

.7

.7

.6

.5.'4

.2

.1

.1

*.l

.1

.2

18.7

0.62

37

July

~

0.2

.1

.1

0

0

0

0

0

0

0

0

0

o

0

0

0

*0

0

o

0

0

0

0

0

0

0

0

0

0

0

0.6

0.02

1.2

Aug.

(*)

(*)

0

0

0

Sept.

(*)

0

0

0

Mean 4.68 Ac-ft 3,390

Water year 1956-57: Max 35 Mln 0 Mean 0.92 Ac-ft 665

Peak discharge (base, 100 efs).--May 18 (2:50 p.m.) 169 cfs (5.74 ft)._____________________

* Discharge measurement or observation of no flow made on this day.

Note. No gage-height record Oct. 1-26; discharge estimated on basis of trend of flow, weather 

records, and records for station at Walnut Creek.
PACHECO CREEK BASIN 229

San Ramon Creek at Walnut Creek, Calif.

Location. Lat 37°53'04", long 122°03'00", on boundary between Arroyo de las Nueces y 

Bolbones and San Ramon Grants, on left bank 0.3 mile downstream from small tributary, 

1.1 miles south of town of Walnut Creek, Contra Costa County, and 1.2 miles upstream 

from confluence with Las Trampas Creek.

Drainage area. 50.7 sq ml.

Records available. October 1952 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 170 ft (from topographic map).

Average discharge. 5 years, 10.0 cfs (7,240 acre-ft per year).

Extremes.--Maximum discharge during year, 124 cfs May 18 (gage height, 3.50 ft); no flow 

during part of September.

1952-57: Maximum discharge, 6,890 cfs Dec. 23, 1955 (gage height, 14.55 ft), from 

rating curve extended above 570 cfs on basis of slope-area determination of peak flow; 

no flow at times in 1954-55, 1957.

Remarks. Records fair. Pumping for irrigation above station during periods of low flow. 

Revisions (water years).--WSP 1395: 1953(M).

Rating table, water year 1956-57 (gage height, in feet, and

discharge, in cubic feet per second)

(Shifting-control method used Oct. 1 to Nov. 27, Jan. 27 to 

Feb. 10, Apr. 26 to Hay 18, June 26 to July 11)

0.4 

.5

0.9 1.2

1.0 1.8

1.2 3.8

1.4 6.5

1.6 

2.0 

2.3 

2.5

9.5

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

L'O

21

22

23

24

25

26

27

28

30 

31

TotaJ

Mean

Ac-ft

Oct.

1.1

1.1 

1.2

1.2

1.3

1.2

1.2

1.1

1.0

1.1

1.2

1.3

1.2

1.2

1.1

1.1

1.0

1.0

1.0

1.0

1.1

1.0

1.2

1.1

1.2.

1.2

1.2

1.2

1.1

1.6 

Ld.

36.2

1.17

72

Nov.

2.3

572

1.8

1.5

1.3

1.2

1.2

1.2

1.0

T7o

1.0

1.0

1.1

1.0

*1 . 1

1.2

1.1

1.2

1.3

1.4

1.5

1.5

1.5

1.4

1.3

1.2

1.2

1.2

1.2

1.2

39.3

1.31

78

Dec.

1.2

1.2 

1.2

1.1

1.2

1.2

1.3

1.3

1.4

1.5

1.4

1.3

1.2

1.3

1.3

1.2 *1.3

1.4

1.5

1.6

1.6

1.7

1 .6

1.5

1.4

1.4

1.4

1.4

1.4

1.5

1.6

42.6

1.37

84

Calendar year 1956 : Max 740

Jan.

1.7

TTs

2.0

2.2

2.4

2.3

2.3

2.3

2.3

2.5

2.8

3.8

10

4.7

2.8

2.6

2.3

2.1

2.2

9.3

*3.5

2.7

2.5

2.5

2.8

3.2

1.9

2.4

2.3

2.3

2.2

92.7

2.99

184

Feb.

2.2

ft*

2.4

2.5

2.6

2.8

3.1

2.7

2.3

2.2

2.5

2.5

2.5

2.6

2.4

2.3

2.3

2.3

2.5

3.4

2.9

*15

22

3£

7.1 *5.2

6.5

-

141.2

5.04

280

Mar.

8.4

3.7 

3.4

4.8

8.7

11

5.9

4.1

11

8.9

5.5

5.8

*6.8

5.4

5.9

6.5

5.1

3.9

3.0

3.0

2.9

2.9

2.9

3.0

2.8

2.8

2.8 *2.5

2^5

2.7

151.1

4.87

300

Apr.

3.1

3.1

3.1

3.1

3.6

3.4

3.4

3.4

3.4

3.6

3.8

3.9

3.8

4.6

5.1

4.4

4.8

10

3.1

3

2.5

2

2

1.5

*1.3

1.2

1.2

1.1

...Wl

99.5

3.32

197

May

1.1

1.2

1.0

1.0

.8

.8

.8

.8

.8

.8

1.0

1.0

1.2

1.0

1.0

1.0

17

23

11

29

To

5.8

4.4

3.0

3.1

2.2 *2.1

1.8

1.9

1.8

132.2

4.26

262

June

1.8

1.9 

2.1

270

1.8

1.7

1.7

1.7

1.8

1.7

1.7

1.7

1.7

1.7

1.6

1.5

1.5

1.5

1.6

1.6

1.5

1.4

1.3

1.3

1.3

1.1 *1.5

1.0

1.0

46.6

1.55

92

July

0.9

T5 

.9

.9

.8

.7

.6

.6

.6

.5 1 "

[,,

/ a '

j

1

> a. 3

]

16.0

0.52

32

Aug.

(*)

> aO.2

(*)

> a.l

5.4

0.17

11

Sept.

aO.l

PI

> aO

a. 2

a. 5

a72

a.2

1.6

0.05

3.2

Hln 0.4 Mean 19.1 Ac-ft 13,880

Water year 1956-57 : Max 30 Mln 0 Mean 2.20 Ac-ft 1,600

Peak discharge (base, 500 cfs). No peak above base.

* Discharge measurement or observation of no flow made On this day.

a No gage-height record; discharge estimated on basis of 2 discharge measurements, 2 observations 

of no flow, by Interpolation, and records for nearby streams.
230 PACHECO CREEK BASIN

Walnut Creek at Walnut Creek, Calif.

Location. Lat 37 C 54'21", long 122°03'22", in Arroyo de las Nueces y Bolbones Grant, on 

right bank at Southern Pacific Railroad Bridge at town of Walnut Creek, Contra Costa 

County, 0.7 mile downstream from confluence of San Ramon and Las Trampas Creeks. 

Prior to June 20, 1957, at site 0.6 mile upstream.

Drainage area. 80.0 sq mi, of which 1.2 sq mi is in Lafayette Reservoir and is noncontributing, 78.1 sq mi at former site.

Records available.--October 1952 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 120 ft (from topographic map). Prior 

to June 20, 1957, at site 0.6 mile upstream at different datum.

Average discharge.--5 years, 21.6 cfs (15,640 acre-ft per year).

Extremes. Maximum discharge during year, 624 cfs May 18 (gage height, 6.06 ft, site and 

datum then in use) ; no flow for part of July 10, caused by construction work above 

station.

1952-57: Maximum discharge, 11,000 cfs Dec. 23, 1955 (gage height, 23.22 ft, site 

and datum then in use), from rating curve extended above 2,400 cfs on basis of 

records for upstream stations; no flow July 29 to Nov. 7, 1954, July 10, 1957.

Remarks. Records poor prior to June 19, fair thereafter. Lafayette Reservoir stores runoff from 1.2 sq mi and is noncontributing. Some small diversions for irrigation above 

station.

Revisions (water years). WSP 1395: 1953.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

£9

30

31

Total

Mean

Ac-ft

Oct.

2.0 276-

2.3

2.8

2.5

3.2

3.2

3.1

3.5

3.6

4.3

3.4

3.0

3.6

3.2

4.3

3.2

3.6

4.1

3.2

4.0

3.8

4.0

4.1

4.1

5.6

3.8

4.1

116

T3

229.5

7.40

455

Nov.

4.1

4.1

2.7

2.4

2.5

2.1

2.6

2.4

2.4

1.7

1.8

1.9

2.7

»2.1

2.1

2.1

2.5

2.2

2.0

2.2

2.7

2.4

2.4

2.3

2.6

2.8

2.3

2.1

1.9

73.1

2.44

145

Dec.

2.0

1.4

1.8

2.7

2.1

1.8

1.6

2.3

2.6

2.2

1.5

1.8

2.1

1.8

1.8

*2.7

2.8

3.1

3.1

3.2

3.2

3.2

3.4

4.5

4.1

4.1

4.1

ILL

3.5

3.5

84.1

2.71

167

Jan.

3.6

5.3

4.9

6.0

5.8

5.3

6.0

7.7

5.8

6.0

45

107

10

4.0

3.6

4.9

4.0

4.8

88

*9.5

4.0

3.4

2.8

4.9

9.2

2.9

2.9

2.6

2.1

1.6

378.3

12.2

750

Feb.

.4

.4

.0

.0

.1

.7

2.5

1.0

.8

.6

.6

.6

.6

.6

.5

.4

.3

.3

.3

5.6

1.3

*139

152

69

26

»14

41

_

465.6

16.6

924

Mar.

26

8.6

19

11

34

13

8.3

42

16

8.0

17

*17

8.6

14

34

8.6

6.8

6.6

7.4

7.4

8.5

7.6

7.1

8.8

6.9

5.6

*5.6

7.1

6.6

8.3

427.1

13.8

847

Apr.

5.6

6.6

4.9

4.3

4.3

3.8

4.1

4.0

3.8

3.5

3.8

3.6

8.6

3.2

3.6

7.3

14

5.6

3.1

2.4 2~4

2.5

4.5

4.0

*4.1

3.4

4.0

3.6

3.8

137.1

4.57

272

May

4.0

6.6

4.7

5.8

4.0

3.8

4.7

7.7

5.1

4.7

5.3

5.1

10

5.8

5.8

5.8

182

59

47

68

12

12

9.3

7.7

6.3

5.3

»5.8

5.1

4.3

4.3

519.1

16.7

1,030

June

4.5

4.7

475

4.5

a4

a4

a4

a4

a4

a3

a3

a3

a3

a 3

a2

a2

a

a

a

.9

.7

.5

.6

.6

.4

* .6

.2

T75

2.0

84.4

2.81

167

July

~75 1.1

.5 

.2

.4

.5

.3

.5

.4

.1

.6

.6

.4

.6

.6

.5

.6

.6

.5

.5

.5

.7

.6

.7

.5

.5

.5

.7

.8

.8

1.0

17.3

0.56

34

Aug.

0.7

.7

.7 

.6

.7

.7

.7

*.6

.8

.6

.5

.5

.4

.6

.7

.7

.6

.7

.7

.7

.6

.7

.8

.6

.5

1.0

.7

.8

1.0

1.1

.9

21.6

0.70

43

Sept.

0.9

.9

1.2 

.8

1.0

.9

.6

78

*.8

1.0

1.0

.8

1.2

1.4

1.2

1.2

1.4

1.4

.9

.9

.8

.8

1.0

1.1

1.2

1.2

1.9

3.4

272

1.9

35.8

1.19

71

Calendar year 1956: Max 1,270 Min 0.9 Mean 38.9 Ac-ft 24,240

Water year 1956-57: Max 182 Min 0.1 Mean 6.78 Ac-ft 4,900

Peak discharge (base, 600 cfs).--May 18 (5 p.m.) 624 cfs (6.06 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of normal recession and records for San 

Ramon Creek at Walnut Creek.
PACHECO CREEK BASIN 231

Galindo Creek at Concord, Calif.

Location. Lat 37 0 58'00", long 122°01'30", in Monte Del Diablo Grant, on right bank just 

off Cowe11 Road, 0,2 mile southeast of Concord, Contra Costa County, and 1.2 miles 

upstream from mouth.

Drainage area. 6.16 sq mi.

Records available. June 1954 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 80 ft (from topographic map).

Extremes. Maximum discharge during year, 22 cfs Apr. 4 (gage height, 1.77 ft), result 

of release from Contra Costa Canal; minimum not determined.

1954-57: Maximum discharge, 260 cfs Dec. 23, 1955 (gage height, 3.45 ft), from 

rating curve extended above 110 cfs by logarithmic plotting; no flow Oct. 22, 26^ 27, 

1954, Sept. 1,8, 1955.

Remarks. Records fair. Some release from Contra Costa Canal (see p. 383 \ Central 

Valley project, into basin above station.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.03

1.1

1.2

1.3

1.4

0

.2

.9

2.0

4.1

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

> aO.l

3.1

0.1

6.1

Nov.

> ao.l

( :i.1.1.1.1.1.1.1.1.1 .1.1.1.1

3.0

0.10

6.0

Dec.

O.,,l.

tf

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

*.l

.1

.1

.1

.1

.1

.1

.1

.1 

.1

.1

.1

.1

.1

3.3

0.11

6.5

Calendar year 1956: Max 55

Jan.

0.1

.1 

,1

.1

.1

.1

.1

.3

.1

.1

i!:

i.

i.

*. ;

i.

12.0

0.39

24

Feb.

0.4

.3

.4

.4

.8

.7

.9

.8

.6

.5

.2

.2

.2

.2

.2

.1

TT

.1

.2

.2

1.3

.5

2^5

1.5

1.0

.5 

.3

1.4

-

16.3

0.58

32

Mln -

Mar.

0.6

.2 

.3

.5

.3

.2

.2

.7

.6

.2

.2

.2

.2

*.2

.2

.2

.1

.2

.2

.1

.4

.6

.3

.2

.3

.2 

.2

.4

*.5

.2

.2

9.1

0.29

18

Apr.

0.1

.6

1.1

.1

.3

.3

.1

.2

.2

.6

.8

.9

1.8

1 .4

1.0

1.0

1.3

.4

.2

.1

.1

.7

.3

.1

.1 

*.2

.3

.1

.3

14.8

0.49

29

May

0.3

.7 

.2

.3

_a

.4

.4

.2

1.3

1.4

.4

.2

.1

.2

.2

.1

.1

2.0

1T3

1.6

.6

.1

.1

.1

.1

.1 

.1

*.2

.5

.4

.3

14.1

0.45

28

June

0.2

TS 

.7

.6

.6

.6

.7

.6

1.0

.8

.7

.8

.6

.6

.8

.8

.6

.6

.4

.5

.5

.4

.6

1.0

.6

:u3

 1.2

.5

.5

.4

20.0

0.67

40

July

0.5

.6 

.3

.2

.4

.6

.2

.7

.5

.4

.6

.6

.2

.2

.2

.3

1.1

.9

1.3

1.4

.7

.6

.6

.5

.5

.4

.7

.6

.6

.7

.6

17.7

0.57

35

Aug.

0.6

.6 

.9

1.2

1.1

1.0

.9

.7

*1.0

.6

.3

.3

.6

.6

.5

.8

.9

1.1

1.1

1.3

1.0

.9

.9

.7

.6

.6 

.7

.6

2.0

T72

1.0

26.3

0.85

52

Sept.

1.0

.9 

1.0

1.3

1.4

.9

.6

.4

.5

*.5

.6

.6

1.0

1.8

1.2

1.1

.6

1.4

1.0

.9

1.0

.5

.4

.3

.4

.6

1.1

1.1

.7

_^2_

25.0

0.83

50

Mean 1.69 Ac-ft 1,230

Water year 1956-57: Max 2.5 Mln - Mean 0.45 Ac-ft 327

Peak discharge (base, 20 cfs). No natural peak above base.

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weather records, 

and records for nearby streams.
232 PACHECO CREEK BASIN

Pine Creek at Concord, Calif.

Location. Lat 37°58'13", long 122°02'42", in Monte del Diablo Grant, on right bank at 

Concord, Contra Costa County, Just upstream from Market Street Bridge, 0.2 mile 

downstream from small tributary and 0.8 mile upstream from mouth.

Drainage area. 27.0 sq mi.

Records available. October 1952 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 30 ft (from topographic map).

Average discharge. 5 years, 2.77 cfs (2,010 acre-ft per year).

Extremes.--Maximum discharge during year, 20 cfs Feb. 23 (gage height, 3.62 ft); no flow 

at times during several months.

1952-57: Maximum discharge, 982 cfs Dec. 23, 1955 (gage height, 9.85 ft), from 

rating curve extended above 80 cfs on basis of slope-area determination of peak flow; 

no flow during several months each year.

Remarks.--Records fair. No storage; some release from Ygnacio and Contra Costa Canals, 

Central Valley project, into basin for irrigation above station.

Revisions (water years).--WSP 1395: 1953, drainage area.

Rating table, water year 1956-57 (gage height, In feet, and discharge. In cubic

feet per second) 

(Shifting-control method used Oct. 1 to Jan. 12, Apr. 23 to May 15, May 18)

2.16

2.3

2.4

2.5 0.6

2.6 .8

2.7 1.1

2.8 1.5

2.9 2.0

3.0 2.6

3.1

3.2 

3.4

3.8 

5.9

12

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

.3

.1

.3

.2

.3'.4

.1

.1

0.

0

0

o

0

.1

.1

.1

.1 

.1

.1

0

.1

.1

.1

.1

.2

.2

.1

0

**

5.7

0.18

11

Nov.

0

0

0

0

0

0

0

0

-^.2

O

0

0

0

o

*0

0

0 

0

0

0

0

.1

.1

0

o

.1

.1

.1

.1

1.0

0.03

2.0

Dec.

0.1

.1

.1

.1

.1!

.2

.1

.1

.1

.2

.2

.2

.1

.1

.1

.2

.2

*.l 

.1

.2

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

5.2

0.17

10

Calendar year 1956: Max 169

Jan.

 

0.2

.2

.2

.2

.2

.2

.5

.2

.2

.2

1.8

s_a

1.0

.6

.5

.6

.6 

.5

5.1

1.3

*.8

1.3

1.0

1.4

2.2

1.5

1.4

1.0

.9

.7

31.8

1.03

63

Feb.

0.8

.8

.8

.8

.9

1.2

1.4

1.5

1.1

1.1

.9

.8

.8

.7

.7

.7

.7

.7 

.7

1.0

*3.9

2.3

*11

7.3

7.0

4.2

3.0

*6.8

-

63.6

2.27

126

Mar.

3.1

1.9

1.8

1.9

2.5

1.9

1.6

1.6

lil

1.8

1.5

1.5

1.4

*1.3

1.7

1.5

1.3

1.3 

1.4

2.2

1.3

1.4

1.2

1.1

1.2

1.0

1.0

1.2

*1.3

.9

O

50.7

1.64

101

Mln 0 Me<

Apr.

0.8

.8

1.0

1.5

.7

.9

1.7

1.7

.9

1.1

1.1

1.4

1.2

1.7

1.7

1.6

1.8

2.5

ITo

.8

.7

.6

1.3

.4

.3

.2

*.2

.2

4

30.1

1.00

60

May

0.3

.7

.4

.3

.1

.2

.4

.4

.9

.8

,.3

.1

.1

0

0

0

0

ff

4.4

3.5

.9

.6

.4

.4

.5

.4

*.4

1.7

.6

.5

27.8

0.90

55

June

0.4

.7

.8

.6

.3

.4

0

.6

1.4

1.1

.7

.6

.8

.5

.9

1.0

.8

.7 

.3

.4

.4

.4

.6

.9.

.8

1.0

*1.6 ~^

.3

.4

19.9

0.66

39

July

0.4

.7

.3

.1

7?

.4

.4

.4

.4

.3

.8

.3

.3

.5

.2

.1

.6

.7 

.7

1.0

.4

.4

.2

.1

.2

.3

.3

.4

.4

.4

.3

12.2

0.39

24

Aug.

0.2

.2

.4

.6

.6

.4

.6

.2

.6

.5

0

0

0

.1

.2

*.4

.5

.4 

.7

.8

.7

.6

.4

.4

.2

.4

.2

.5

1.8

1T3

.7

14.6

0.47

29

Sept.

0.6

.6

.5

.4

.9

.5

.2

0

.2

*0

.3

.2

.4

-^1.1

.7

.2

.9 

.8

.6

.9

.4

.4

.3

.4

.7

.9

1.1

.8

.3

16.1

0.54

32

in 5.78 Ac-ft 4,190

Water year 1956-57: Max 11 Mln 0 Mean 0.76 Ac-ft 552

Peak discharge (ftase, 100 cfs). No peak above base.

* Discharge measurement or observation of no flow made on this day.
PACHECO CREEK BASIN 233

Grayson Creek near Hookston, Calif.

Location. Lat 37°57'05", long 122°05'05", in Las Juntas Grant, 0.3 mile upstream from 

unnamed tributary and 1.9 miles northwest of Hookston, Contra-Costa County.

Drainage area. 1.94 sq mi.

Records available. June 1954 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 80 ft (from topographic map).

Extremes. Maximum discharge during year, 21 cfs Jan. 20 (gage height, 1.53 ft); no flow 

for several months.

1954-57: Maximum discharge, 416 cfs Dec. 23, 1955 (gage height, 4.72 ft), from 

rating curve extended above 46 cfs on basis of slope-area determination of peak flow; 

no flow for several months each year.

Remarks. Records fair except those for periods of no gage height record, which are poor. 

No storage or diversion.

Rating table, water year 1956-57 (gage height, in 

feet, and discharge, In cubic feet per second)

1.02

1.1

1.2

1.3

1.4

.4 

1.3 

3.5 

8.5

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0.2

0.006

0.4

Nov.

(*)

0

0

0

Dec.

(*)

0

0

0

Calendar year 1956: Max 16

Jan.

0

0

0

0

0

0

0

0

0

0

0

0

1.0

.1

0

0

0

0

0

2.0

*0

0

0

0

0

0

0

0

0

0

0

3.1

0.10

6.1

Feb.

00"

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*.2

.1 *2.3

3.0

.3

.4 *.l

.9

-

7.3

0.26

14

Min 0

Mar.

0.3

.1

.1

.1

.3

.2

.2

.2

.5

.2

.2

.2 *.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

0

.1

.1

0

0

*0

0

0

.1

4.2

0.14

8.3

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

.1

.2

0

0

0

0

0

0

1.7

»0~5.1

0

0

0

7.2

0.24

14

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.0

.5

.6

.2

.1

.1

.1

.1

0

0

*0

0

0

0

2.7

0.09

5.4

June

0

.1

.1 *

> .1

.1

.1

.1

.1

0

0

*0

0

.1

.1

2.5

0.08

5.0

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

.2

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.006

0.4

Aug.

(*)

( )

0

0

0

Sept.

0

0

0

0

0

0

0

0

*0

0

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.3 o.oi

0.6

Mean 0.52 Ac-ft 379

Water year 1956-57: Max 5.1 Min 0 Mean 0.08 Ac-ft 54

Peak discharge (base, 20 efB).~Jan. 20 (5:50 a.m.) 21 efs (1.55 ft)._______________________

* Discharge measurement or observation of no flow made on this day.

Note. No gage-height record Oct. 26 to Nov. 16, June 4-20, June 29 to July 3, Sept. 11-30; discharge estimated on basis of recorded range In stage, fragmentary gage-height record, and records 

for nearby streams.
234 PACHECO CREEK BASIN

Grayson Creek near Pacheco, Calif.

Location. Lat 37°57'25", long 122°04'20", in Las Juntas Grant, on downstream side of 

bridge , 0.6 mile downstream from unnamed tributary and 1.8 miles south of Pacheco, 

Contra Costa County.

Drainage area . 4.35 sq mi.

Records available. June 1954 to September 1957.

Gage. Water-stage recorder recorder and concrete control. 

(from topographic map).

Altitude of gage is 40 ft

Extremes . --Maximum discharge during year, 60 cfs Apr. 10 (gage height, 3.55 ft), result 

of release from Contra Costa Canal; no flow many days in year.

1954-57: Maximum discharge, 604 cfs Dec. 23, 1955 (gage height, 10.24 ft, from 

floodmarks) , from rating curve extended above 110 cfs by logarithmic plotting; no 

flow many days each year.

Remarks .--Records fair except those for periods of no gage-height record, which are poor. 

Periodic releases from cleaning Contra Costa Canal (see p. 383), Central Valley project, into basin above station. Waste water from filtration plant released almost 

daily into channel above gage.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

1.45

1.5

1.6

1.7

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21'

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

~.3 0

0

0

.2

.1

.1

O

.1

0

.1

.2

.2

.2

.2

.1

.1

.1

0

.3

0

.1

.1

.1

.1

}'

3.3

0.11

6.5

Nov.

> 0.1

(*)

.1

1;;

3.0

0.10

6.0

Dec.

~7T 0.1

. 2

.1

. 2

.1

.1

.1

.1

jJL

.1

.1

.1

.1

.1

.1 *.i

.1

.1

.1

.1

.1.1

.1

.1

.1

.1

.1

.1

.1

.1

3.5

0.11

6.9

Jan.

0.1

.1

.1

.1

c>

O

0

.1

.1

.1

.6

2.0

.1

.1

0

0

.1

.1

£

*.2

.1

.1

.1

.2

iZ'.I

.1

.1

.1

.1

9.3

O.03

18

Feb.

0.1

.1

.1

.2

p_

0

.2

.1

.1

0

.1

.2

0

.1

0

.1

.1

.1

0

0

.6

.4

4.7

7.5

1.3

.9

*.3

3.0

-

20. 3

O.72

40

Mar.

0.9

.2

.2

.3

.6

.2

.1

.1

~1.2

.1

.1

*.2

.1

.3

.1

.1

.2

.1

.2

.1

.1

.1

.1

.1

.2

.1

*.l

.2

.1

.2

6.9

0.22

14

Apr.

0.1

.1

.1

12

5.2

O

.1

.1

8.5

3.6

.2

.1

.2

.7

1.9

.2

.3

.4

.1

.1

.1

O

O

.1

.1

.1

*.l

.2

.2

.1

35.0

1.17

69

May

0.1

.2

.2

.2

.2

.2-.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

1.4

1.1

1.6

.5

O

0

.1

.3

]">

-1

J

7.8

0.25

15

June

> 0.1

(»)

3.0

0.1

6.0

July

> 0.1

3.1

0.1

6.1

Aug.

(»)

> 0.1

3.1

0.1

6.1

Sept.

> 0.1

*.4

O

.4

.3

.6

0

.2

.2

.1

.1

.1

.1

.1

.1

.1

O

0

.3

O

0

O

4.0

0.13

7.9

Calendar year 1956: Max 52 Min 0 Mean 1.47 Ac-ft 1,070

Water year 1956-57: Max 12 Min O Mean O.28 Ac-ft 2O2

Peak discharge (base. 25 cfs). No natural peak above base.

* Discharge measurement made on this day.

Note.--No gage-height record Oct. 1 to Nov. 22, Jan. 19-21, May 26 to Sept. 9; discharge estimated 

on basis of fragmentary gage-height record, recorded range in stage, weather records, records for 

station near Hookston, and occasional gage readings.
KERN RIVER BASIN 235

Golden Trout Creek near Cartago, Calif.

Location. Lat 36°22'25", long 118°17'15", on line between sees. 9 and 10, T. 18 S., 

R. 34 E., on right bank 0.3 mile upstream from Tunnel ranger station and 15 miles 

west of Cartago.

Drainage area. 23.4 sq mi.

Records available. October 1956 to September 1957.

Sage. Water-stage recorder. Altitude of gage is 9,000 ft (from topographic map).

Extremes. Maximum discharge during year, 65 cfs May 27 (gage height, 3.04 ft); maximum 

gage height, 3.66 ft Jan. 14 (backwater from ice); minimum discharge, 2.5 cfs Jan. 13, 

result of freezeup.

Remarks. Records excellent except those for periods of ice effect, which are good. No 

storage or diversion.

Rating table, water year 1956-57, except periods of ice effect ( 

height, In feet, and discharge, In cubic feet per second)

2.0

2.1

2.2 

2.5 

2.8

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

13

14

14

18

TT

14

15

14

14

*13

13

13

13

13

13

13

13

13

13

13

13

13

13

14

13

13

13

13

13

13

13

420

13.5

833

Nov.

13

13

13

13

13

13

*12

12

12

12

12

12

12

12

12

12

12

12

12

12

11

IT

11

11

11

11

11

11

12

12

358

11,9

710

Dec.

11

11

11

11

12

10

10

1111

11

11

12

12

11

11

11

11

11

11

10

10

10

10

10

10

10

10

10

10

10

10

328

10.6

651

Jan.

10

To

10

10

9.9

10

10

10

10

10

10

9.9

9.1

9

9

10

10

10

10

10

10

10

10

10

10

10

9

10

10

10

10

305.9

9.87

607

Feb.

10

 10

9

10

10

10

10

10

10

10

10

11

11

11

10

11

11

1111

10

10

10

10

9.9

10

10

10

10

-

285.9

10.2

567

Mar.

10

10

10

10

10

11

TT

11

1011

10

10

10

10

10

10

10

10

10

10

9.9

10

10

10

10

10

10

10

10

10

10

313.9

10.1

623

Apr..

To- 10

ll

12

13

13

12

12

13

14

14

 14

15

16

IS

14

13

13

13

12

12

12

12

12

13

13

14

16

15

15

393

13.1

780

May

17

20

24

28

32

30

28

26

26

23

21

22

24

21

22

25

28

35

27

24

26

26

26

26

32

39

41

40

40

39

41

879

28.4

1,740

June

41

41

41

42

41

41

41

40

42

40

38

36

35

33

31

30

28

27

26

26

24

24

23

22

22

21

20

20

 20

20

936

31.2

1,860

July

20

20

19

18

18

18

17

17

17

17

16

16

15

15

15

15

15

14

14

14

14

14

14

14

14

14

13

14

13

13

13

4,80

15.5

952

Aug.

13

13

13

13

12_

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

376

12.1

746

Sept.

12

12

12

 11

TT

11

11

11

12

12

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

13

T2

338

11.3

670

Calendar year 1956: Max - Hln - Mean - Ac-ft -

Water year 1956-57: Max 42 Mln 9 Mean 14.8 Ac-ft 10,740

Peak discharge (base, 50 cfs).--May 18 (4 p.m.) 62 cfs (3.01 ft); May 27 (5:30 p.m.) 65 cfs 

(3.04 ft).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Nov. 20-26, Dec. 1, 2, 6-10, 15, 17-30, Jan. 

6-11, 14-23, 27-30, Feb. 2, 3, Mar. 3, 13-15, 17, 22, 23, Apr. 18, 19.

2-4,
236 KERN RIVER BASIN

Kern River near Kernville, Calif.

Location. Lat 35°56'00", long 118°29'10", in NE£ sec. 14, T. 23 S., R. 32 E., on left 

bank 3 miles upstream from Salmon Creek and 13 miles north of Kernville.

Drainage area. 865 sq mi.

Records available. January 1912 to September 1957. Records of daily discharge include 

flow of Kern River Ho. 3 Canal. Prior to October 1953, records for canal published 

separately.

Gage.--Water-stage recorder. Altitude of gage is 3,550 ft (from topographic map). Prior 

ro Apr. 1, 1913, at site 0.2 mile downstream at different datum. Apr. 1 to Sept. 14, 

1913, staff gage and Sept. 15, 1913, to Feb. 20, 1922, water-stage recorder, at 

present site at datum 5.00 ft higher.

Average discharge. 45 years, 713 cfs (516,200 acre-ft per year), combined flow of Kern 

River near Kernville and Kern River Ho. 3 Canal; median of yearly mean discharges, 

620 cfs (449,000 acre-ft per year).

Extremes (river only).--Maximum discharge during year, 3,030 cfs June 6 (gage height, 

9.02 rt); minimum daily, 1.3 cfs Oct. 10, 22.

1912-57: Maximum discharge, 27,200 cfs Dec. 23, 1955 (gage height, 17.55 ft), from 

rating curve extended above 6,000 cfs on basis of computed peak flow over dam (basic 

data for computation furnished by Southern California Edison Co.); no flow July 31 

to Hov. 7, Nov. 12 to Dec. 7, 1924, Jan. 16 to Feb. 7, 1925.

Remarks. Records good. Records of daily discharge presented herein include flow of 

Kern River Ho. 3 Canal which diverts 1 mile above station, from left bank of Kern 

River in sec. 12, T. 23 S., R. 32 E., for power development; water is returned to 

river 12 miles below station. Records of chemical analyses for the water year 1957 are 

given in WSP 1523.

Cooperation. Water-stage-recorder graph and 13 discharge measurements for Kern River and 

water-stage-recorder graph and 18 discharge measurements for canal, furnished by 

Southern California Edison Co. in connection with a Federal Power Commission project.

Revisions (water years). WSP 1445: 1912, 1916(M), drainage area.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

252

252

266

306

564

350

324

328

314

303

298

296

288

282

276

269

266

262

261

256

253

251

251

*258

264

272

263

260

255

*260

284

8,684

280

17,220

' Nov.

268

264

272

26S

266

266

262

260

258

253

250

247

243

*244

236

236

238

238

234

244

240

236

236

236

240

240

234

234

238

238

7,419

247

14,720

Dec.

242

244

244

238

*245

241

221

202

216

227

240

247

244

239

228

224

220

213

*212

215

205

196

202

207

202

200

199

201

202

202

202

6,820

220

13,530

Jan.

201

197

194

193

*198

194

191

196

183

181

196

225

410

293

235

222

213

203

210

231

210

206

*230

221

210

242

189

209

205

*212

221

6,721

217

13,330

Feb.

237

232

222

214

219

228

232

362

337

313.

353

388

399

380

357

366

370

352

339

322

311

311

407

425

676

520

466

470

9,808

350

19,450

Mar.

524

476

447

416

415

455

*476

464

448

422

409

401

386

372

368

388

352

354

347

336

*339

325

319

325

335

350

356

364

371

365

*377

12,082

390

23,960

Apr.

394

376

375

405

452

502

495

482

484

504

535

542

543

589

574

533

*532

607

534

541

510

489

514

548

572

581

594

620

*678

701

15,806

527

31,350

May

707

737

769

870

975

1,090

1,160

1,040

960

883

818

756

736

*730

694

692

756

1,020

2,510

1,440

,270

,180

,150

,040

,040

,130

,290

,430

,440

,420

, 560

55,093

1,068

65,640

June

1,920

*2,400

*2,780

5,080

*5,200

*5,160

5,070

2,990

2,810

2,260

1,850

1,850

2,240

2,100

1,820

1,600

1,610

1,700

1,820

1,850

1,760

1,600

1,600

1,610

1,620

1,750

1,660

1,600

1,440

*1,250

61,940

2,065

122,900

July

1,140

1,050

987

956

949

919

859

809

775

842

754

*707

639

611

561

545

555

520

504

478

454

432

411

395

584

581

575

570

363

*560

362

19,421

626

38,520

Aug.

352

540

332

325

520

510

298

287

275

264

257

250

248

246

242

242

257

252

232

228

228

228

227

228

225

222

217

216

211 

2lT

211

7,939

256

15,750

Sept.

205

*198

195

190

186

184

182

180

180

182

185

185

182

180

178

177

184

206

205

196

189

181

175

*171

170

170

168

166

175

198

5,517

184

10,940

Calendar year 1956: Max 3,520 Min 196 Mean 976 Ac-ft 708,400

Water year 1956-57: Max 3,200 Min 166 Mean 535 Ac-ft 387,300

Discharge measurement of river made on this day.
KERN RIVER BASIN 237

Kern River at Kernville , Calif.

Location. Lat 35°45'15", long 118°25'25", in NEiSW£ sec. 15, T. 25 S-, R. 33 E. , on 

right bank 300 ft downstream from highway bridge, at new town of Kernville, 1.1 miles 

upstream from Caldwell Creek, 8.9 miles upstream from Isabella Dam, and 41 miles northeast of Bakersfield.

Drainage area. 1,026 sq mi.

Records available . January 1905 to September 1912, October 1953 to September 1957.

Gage . Water-stage recorder. Datum of gage is 2,621.57 ft above mean sea level (levels 

5y Corps of Engineers). January 1905 to September 1912 staff gage at two sites 

31 miles downstream at different datums.

Average discharge. --11 years, 945 cfs (684,200 acre-ft per year).

Extremes . Maximum discharge during year, 3,920 cfs May 19 (gage height, 8.68 ft); minimum, 128 cfs Oct. 3.

1905-12, 1953-57: Maximum discharge, 29,400 cfs Dec. 23, 1955 (gage height, 

16.20 ft in gage well, 16.8 ft outside, from floodmarks) , from rating curve extended 

above 7,200 cfs on basis of slope-area determination of peak flow; minimum, 74 cfs 

Oct. 27, 1954.

Maximum stage known since at least 1912, 18.4 ft Nov. 19, 1950 (discharge not 

determined) .

Remarks . --Records excellent. Slight regulation at times by operation of Kern River No. 3 

Canal and powerplant. A few small diversions for irrigation above station. Gilbert 

irrigation ditch diverts up to 7 cfs around station during irrigation season.

Cooperation. Co~. Thirteen discharge measurements furnished by the Southern California Edison 

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

3.8 

4.0 

4.5

5.0

132

172

315

530

6.0 

7.0 

8.0 

9.0

1,120

1,900

2,990

4,400

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4 

5

6

7

9

9

10

11

12

13

14

15

16

17

18

19'i-O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

228 

228

237

*270 

332

332

315

312

301

284

280

277

264

261

254

245

240

231

228 

226

228

2.28

231

*240

248

261

254

248

242

 245 

270

8,040

259

15,950

Nov.

254 

248

254

258 

254

254

248

248

242

240

237

237

231

*228

223

220

226

226

223 

208

212

218

218

212

210

208

212

212

208

205

6,874

229

13,630

Dec.

202 

200

*205

212 

228

237

218

198

210

223

237

245

245

237

226

220

215

210

 208 

208

200

190

T55

205

198

195

193

193

195

195 

195

6,533

211

12,960

Jan.

193 

188

186

186 

190

188

184

 186

174

170

186

212

451

326

248

226

218

208

208 

237

220

 210

231

226

210

242

195

210

205

210 

 220

6,744

218

13,380

Feb.

237 

242

228

223 

223

228

231

370

378

329

370

 430

440

412

374

382

399

374

358 

336

318

322

414

444

702

663

530

*515

10,472

374

20,770

Mar.

620

55?

505

458 

448

490

520

500

476

458

435

426

404

374

382

399

362

358

358 

346

343

*326

315

3T5

326

340

354

354

362

354 

366

12,629

407

25,050

Apr.

378 

358

*346

378 

430

480

476

458

458

476

515

525

520

565

575

520

*495

628

 550 

550

520

495

515

570

600

600

600

610

646

7 18

15,555

518

30,850

May

702 

 746

782

854 

968

1,110

1,200

1,120

1,020

944

878

830

794

776

*752

724

764

896

2.670 

1,580

,400

,320

;250

,150

,130

,190

,320

,480

1,510

1,490 

1,580

34,930

1,127

69,280

June

1,940 

2,440

*2,870

3,110 

*5.590

3,330

3,170

3,070

2,870

2,390

,910

,880

,280

,180

,890

,660

,650

,730

,870 

,920

,870

,690

,660

,690

,700

,790

,750

,690

,520

.540

64,250

2,142

127,400

July

1.220 

1,120

1,040

1,000 

987

980

932

866

830

*878

830

 752

*718

668

600

570

560

540

520 

485

458

426

*399

374

362

358

350

340

332

329 

526

20,150

650

39,970

Aug.

522

*3l5

298

294 

290

289

274

264

254

242

237

231

228

223

220

218

218

212

212 

210

208

208

205

208

202

200

198

195

190 

*TorT *iyu 

195

7,248

234

14,380

Sept.

186 

TIT

 170

162 

164

158

156

154

154

156

160

160

158

156

156

154

160

179

179 

172

164

158

152

 150

148

148

146

146

*150 

170

4,807

160

9,530

Calendar year 1956: Max 3,590 Min 190 Mean 1,009 Ac-ft 732,500

Water year 1956-57: Max 3,390 Min 146 Mean 543 Ac-ft 393,200

Peak discharge (base. 2,000 cfs).--May 19 (6:30 a.m.) 3,920 cfs (8.68 ft); June 5 (10 a.m.) 

5,830 cfs (8.62 ft): June 13 (l p.m.) 2,550 cfs (7.64 ft); June 20 (l to 4 p.m.) 2,040 cfs 

(7.15 ft); June 28 (4 p.m.) 2,030 cfs (7.14 ft). _______________

* Discharge measurement made on this day.
238 KERN RIVER BASIN

Borel Canal below Isabella Dam, Calif.

Location. Lat 35°38'30", long 118°28'10", in NE£ sec. 30, T. 26 S., R. 33 E. , on right 

bank 500 ft downstream from Isabella Dam and 3 miles upstream from point where canal 

crosses Erskine Creek.

Records available . January 1910 to September 1914, October 1925 to September 1957. Published as "Kern River Power Co.'s Canal at Kernville" 1910-14. Published as "at 

Tillie Creek" 1925 to October 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,540 ft (from topographic map). Prior 

to Apr. 29, 1952, at site 4 miles upstream at different datum.

Average discharge. 32 years (1925-57), 365 cfs (264,200 acre-ft per year).

Extremes. 1925-57: Maximum daily discharge, 634 cfs Mar. 13, 14, 1952; no flow at times.

Remarks. Records good. Canal diverts from left bank of Kern River at Isabella Dam to 

supply Borel powerplant of Southern California Edison Co., 6 miles downstream from 

station, at which point water is returned to Kern River.

Cooperation.--Water-stage-recorder graph and 28 discharge measurements furnished by

Southern California Edison Co. in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16'

17

18

19

20

21

22

Z3

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Caler

Oct.

*547

548

548

548

548

548

548

546

542

542

542

529

529

531

536

538

542

542

542

542

542

542

*542

542

542

542

542

527

*389

282 

267_

16,097

519

31 , 930

Nov.

*268

267

267

276

290

287

289

289

288

287

287

287

*278

266

248

239

239

239

239

238

237

237

237

237

237

251

256

254

257

250

7,821

261

15,510

Dec.

248

248

*248

248

253

276

253

245

242

242

241

248

272

282

282

262

246

*240

235

235

229

219

2T9

219

219

219

229

235

235

235 

236

7,540

243

14,960

Jan.

236

235

*235

235

227

219

219

219

218

204

195

241

417

393

343

272

234

234

234

254

281

279

*279

256

246

267

271

250

241

231 

*231

7,896

255

15,660

Feb.

260

296

293

262

239

227

247

343

399

399

*398

454

447

426

409

395

398

399

405

405

379

366

386

441

478

536

*568

546

10,801

386

21,420

Mar.

110

0

0

0

0

0

0

0

149

542

*542

*498

475

434

*427

468

486

472

482

*498

509

*529

536

507

504

523

547

551

553

*570 

58J5

11,498

371

22,810

Apr.

*588

592

*596

574

576

586

588

592

590

588

123

9.8

403

586

586

*586

*584

568

582

580

572

572

574

574

576

576

576

576

574

570

16,217.8

541

32,170

May

*570

570

568

566

566

570

566

566

566

561

561

561

*563

566

561

*564

566

564

564

563

563

564

561

557

555

557

557

557

557

559 

559

1.7 , 448

563

34,610

June

*551

546

542

*536

536

534

534

536

534

534

540

549

559

563

563

564

566

572

582

586

586

586

584

588

58?

574

572

574

574

572

16,819

561

33,360

July

*566

576

*580

578

578

578

578

578

578

578

578

*578

578

580

572

564

566

561

555

555

555

555

*549

547

547

547

547

546 54~6

551 

555

17,500

565

34,710

Aug.

*555

553

555

555

547

542

542

542

542

542

542

536

531

531

532

531

531

531

531

531

531

531

532

531

532

529

536

544

518

*458 

*385

16,429

530

32,590

Sept.

*421

445

443

455

479

486

489

486

470

422

408

390

357

330

319

307

*300

319

321

308

308

308

308

*322

342

356

356

356

356

371

11,338

378

22,490

idar year 1956: Max 589 Hln 10 Mean 500 Ac-ft 363,000

Water year 1956-57: Max 596 Hln 0 "lean 431 Ac-ft 312,200

* Discharge measurement made on this day.
KERN RIVER BASIN 239

South Pork Kern River near Olancha, Calif.

Location. Lat 36°11'00", long 118°07'40", in SW^- sec. 18, T. 20 S. , R. 36 E. , on left 

bank 50 ft upstream from small unnamed left bank tributary, 1.8 miles downstream from 

Snake Creek, and 9.7 miles southwest of Olancha.

Drainage area. 148 sq mi.

Records available.--October 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 7,900 ft (from topographic map).

Extremes.--Maximum discharge during year, 384 cfs May 19 (gage height, 3.58 ft); minimum, 

2.3 cfs Nov. 19, result of freezeup.

Remarks.--Records good except those for period of ice effect or no gage-height record, 

which are poor. No storage or diversions above station.

Discharge, in cubic feet per- second, water- year October 1956 to September- 1957

Day

1

2

3

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

12

IT

14

27

40

32

25

18

*17

16

15

14

14

14

14

14

14

15

15

15

15

15

14

13

13

14

14

13

13

13

13

509

16.4

1,010

Nov.

13

13

14

14

15

15

*16

16

16

15

14

14

14

14

14

14

13

13

13

12

12

13

13

13

13

12

12

12

12

12

406

13.5

805

Dec.

> 10

' 8

278

8.97

551

Calendar- year- 1956: Max -

Jan.

' 6

(*)

> 5

170

5.48

337

Feb.

' 8

> 13

-

289

10.3

573

Mln -

Mar.

 30

930

30.0

1,840

Apr.

65

60

Jo

80

90

110

100

95

100

105

115

*127

134

148

134

109

98

72

94

100

68

92

96

125

165

190

200

T98" 208

182

3,530

118

7,000

May

185

180

178

175

173

169

167

165

146

137

141

142

144

125

112

110

1^2

130

321 265"

240

208

195

195

182

171

*163

*161

167

1 c\7 13 /

151

5,277

170

10,470

June

148

144

142

141

139

135

130

122

117

118

107

98

90

82

77

74

69

65

60

55

52

49

47

43

41

38

37

34

*32 

32

2,518

83.9

4,990

July

30

29

29

27

26

25

24

24

24

25

24

22

22

20

20

18

18

17

16

16

16

15

14

14

14

14

13

14

13

12 

12

607

19.6

1,200

Aug.

11

Ti

10

9.8

9.4

9.4

9.8

9.8

9.0

8.6

8.2

8.2

8.6

8.6

8.2

.5

.2

.2

.2

.2

.2

.2

.5

.5

.2

.9

.2

7.5

7.8 8 . 2

8.6

258.7

8.35

513

Sept.

8.2

8.6

8.2

*8.2

*7.5

7.5

7.5

7.8

7.8

8.2

8.2

8.2

7.8

8.2

7.8

8.2

9.0

10

11

10

10

9.8

9.8

10

11

11

11

11

14

I6.

281.5

9.38

558

Mean - Ac -ft -

Water- year- 1956-57: Max 321 Mln 5 Mean 41.2 Ac-ft 29,850

Peak discharge (base, 150 cfs). Apr-. 14 (2:30 a.m.) 192 cfs (2.87 ft); Apr. 28 (3 a.m.) 265 cfs 

(3.16 ft); May 19 (7:00 a.m.) 564 efs (3.56 ft)._______________________________________ 

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Oct. 23 to Apr. 11 (no gage-height record Nov. 28 

to Jan. 21, Jan. 24 to Apr-. 11; discharge estimated on basis of 1 discharge measurement, weatherrecords, and records for station near Onyx).
240 KERN RIVER BASIN

South Pork Kern River near Onyx, Calif.

Location. Lat 35°44' , long 118°10' , in SW£ sec. 24, T. 25 S., R. 35 E., on left bank 

three-quarters of a mile north of State Highway 178, 1.4 miles upstream from Canebrake 

Creek, and 5 miles northeast of Onyx.

Drainage area. 530 sq mi.

Records available.--September 1911 to August 1914, January 1919 to September 1942, August 

1947 to September 1957.

gage. Water-stage recorder and broad-crested weir. Altitude of gage is 2,900 ft (from 

Topographic map). Sept. 12, 1911, to Aug. 31, 1914, staff gage and Jan. 23, 1919, to 

Apr. 17, 1936, water-stage recorder, at site 140 ft upstream at same datum.

Average discharge . 31 years (1911-13, 1919-25, 1929-42, 1947-57), 104 cfs (75,290 acreft per year); median of yearly mean discharges, 73 cfs (52,800 acre-ft per year).

Extremes. Maximum discharge during year, 412 cfs May 19 (gage height, 3.50 ft); minimum, 

1.5 cfs Aug. 20.

1911-14, 1919-42, 1947-57: Maximum discharge, 3,450 cfs Mar. 2, 1938 (gage height, 

6.69 ft), from rating curve extended above 1,900 cfs, but may have been exceeded by 

flood of Jan. 25, 1914 (maximum observed gage height, 7.2 ft and rising, at site then 

in use); no flow several days in July and August 1929 and September 1934.

Remarks. Records excellent except those for period of no gage-height record, which are 

good. Lowell and Thomas ditches divert above station for irrigation of about 160 acres 

below station; combined capacity, about 5 cfs.

Revisions (water years). WSP 1151: 1948(M). WSP 1445: Drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

1.5 

1.7 

1.9 

2.2

Oct. 1 to May 19

8.5 2.5

18 2.8

33 3.1

67 3.4

May 20 to Sept. 30

113

176

261

369

1.2

1.3

1.4

1.5

1.2 

2.7 

5.3 

9.2

1.7 20

1.9 35

2.2 67

Note. Same as preceding 

table above 2.2 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

12

IS

14

18

26

29

27

23

22

20

21

24

23

23

23

23

22

23

23

22

21

20

17

17

*16

18

20

18

17

16

19

630

20.3

1,250

Nov.

22

20

18

T9

20

20

23

25

24

24

24

25

25

*26- 27

24

24

25

27

22

20

22

25

24

23

22

24

24

26

27

701

23.4

1,390

Dec.

27

26

25

27

30

30

22

17

14

2C

27

32

31

31

30

30

31

*27

27

27

24

23

23

27

25

26

24

25

27

27

28

810

26.1

1,610

Jan.

25

21

25

26

31

24

25

27

22

18

22

35

59

4C

28

24

24

22

22

30

20

24

*27

25

23

31

17

IS

26

27

25

813

26.2

1,610

Feb.

26

27

25

242i

27

31

40

46

43

57

63

*64

62

58

57

55

55

57

52

52

51

67

64

92

75

68

97.

1,460

52.1

2,900

Mar.

!3B~ Ill

93

80

78

81

88

93

94

92

84

81

80

78

77

77

77

70

67

63

66

*66

58

51

58

70

80

78

84

84

80

2,451

79.1

4,860

Apr.

92

87

8290"

108

124

138

126

124

132

140

151

151

155

155

*136

124

128

103

121

119

99

115

126

155

192

210

213 m

213

4,122

137

8,180

May

205

199

197

192

192

192

186

194

181

167

164

167

164

155

*136

124

T26

134

294

546

284

255

236

236

227

210

199

197

197

202

192

6,150

198

12,200

June

186

T3T

179

167

167

*160

153

147

142

142

140

128

115

103

98

93

90

78

68

63

59

56

54

50

45

43

40

37

36

.35

3,055

102

6,060

July

31

2S

26

25

24

26

25

24

25

24

22

22

*21

20

20

17

14

12

10

9.7

9.7

9.2

8.7

8.7

8.3

8.3

7.9

7.9

7.5

7.1

6.0

515.0

16.6

1,020

Aug.

6.0

6.0

6.3

6.7

7.1

7.1

7.1

6.7

6.0

3.5

2.6

2.4

2.9

3.3

4.0

4.6

3.1

2.6

3.1

2.7

2.0

271

2.9

3.5

4.0

4.6

5.6

6.0

5.3

6.3

*5.0

141.4

4.56

280

Sept.

3.5 476"

5.6

6.3

7.5

8.3

10

7.9

4.6

4.6

5.3

6.7

7.5

8.3

9.2

10

11

a!3

alS

a!2

all

all

*11

11

8.7

7.5

7.5

7.9

8.7

10

253.2

8.44

502

Calendar year 1956: Max 469 Mln 8.5 Mean 114 Ac-ft 82,620

Water year 1956-57: Max 346 Mln 2.0 Mean 57.8 Ac-ft 41,860

Peak discharge (base. 180 cfs). Apr. ll (8 p.m.) 186 cfs (2.84 ft); Apr. 28 (6 p.m.) 252 cfs

(3.07 ft); May 19 (9:3Op.m.) 412 cfft (3.50 ft)._______________________________________

* Discharge measurement made on thl? day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

Kern River at Kernvllle.
KERN RIVER BASIN 241

Isabella Reservoir near Isabella, Calif.

Location.--Lat 35°38'50", long 118°28'50", in SWir sec. 19, T. 26 S., R. 33 E., in main 

control tower near left abutment of main dam on Kern River, 1.5 miles north of new 

town of Isabella and 2.8 miles upstream from Erskine Creek.

Drainage area.--2.093 sq mi.

Records available.--October 1953 to September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Corps of 

Engineers).

Extremes.--Maximum contents during year, 184,000 acre-ft June 20 (elevation, 2,561.83 ft); 

 minimum, 107,400 acre-ft Sept. 30 (elevation, 2,547.58 ft).

1953-57: Maximum contents, 283,000 acre-ft June 30, 1956; minimum since appreciable 

storage was attained, 4,330 acre-ft Apr. 21, 1955.

Remarks. Reservoir is formed by earth-fill dam with side-hill spillway and auxiliary 

eaHh-fill dam, completed in 1954; regulation of discharge from reservoir began 

Apr. 15, 1954. Minor detention storage occurred during construction of dam prior to 

this date, the maximum being 1,750 acre-ft on Apr. 27, 1953. Usable capacity, 569,700 

acre-ft between elevations 2,470.0 (invert of main outlet) and 2,605.5 ft (spillway 

crest) above mean sea level. Dead storage, 326 acre-ft is not available for release. 

Surcharge flood control storage, 271,800 acre-ft between ungated spillway crest and 

elevation 2,627.0 ft (maximum design spillway flood pool). Records, including 

extremes, show total contents at 12 p.m. Water is released to Kern River through 

tunnel in left abutment of main dam and to Borel Canal through concrete conduit in 

auxiliary dam.

Cooperation. Record of contents furnished "by Corps of Engineers and reviewed by Geologleal Survey.

Revisions. WSP 1395. Drainage area.

Capacity table, watei 

In feet, and total

2,540

2,550

2,560

2,570

year 1956-57 (elevation,

77,300

118,500

172,700

239,000

Total contents, In acre-feet, at 12 p.m., nater year- October- 1956 to September- 1957

Day

1 

Z 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14- 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

2B 

29 

30 

31

Cl

Oct.

152,600

151,600 

150,800 

149,900 

149,200

148,400 

148,000 

147,400 

146,700 

146,100

145,400 

144,900 

144,400 

143,800 

143,300

142,700 

142,000 

141,100 

140,200 

139,500

138,600 

137,700 

136,800 

136,000 

135,100

134,400 

133,800 

133,200 

132,900 

132,800

132,800

2,252.88 

-20,900

Nov.

132,700

132,700 

132,700 

132,700 

132,600

132,600 

132,500 

132,500 

132,400 

132,300

132,200 

132,200 

132,100 

131,900 

131,900

131,800 

131,800 

131,700 

131,700 

131,600

131,500 

131,400 

131,400 

131,300 

131,300

131,300 

131,300 

131,200

131,200 

131,200

2,552.57 

-1 , 600

Dec.

131,100

131,100 

131,000 

131,000 

131,000

130,900 

130,900 

130,900 

130,800 

130,700

130,700 

130,700 

130,800 

130,800 

130,700

130,700 

130,600 

130,600 

130,600 

130,600

130,500 

130,500 

130,500 

130,400 

130,400

130,400 

130,400 

130,400 

130,300

130,300 

130,300

2,552.40 

-900

Jan.

130,300 

130,300 

130,200 

130,200 

130,200

130,200 

130,200 

130,100

130,100 

130,100

130,100 

130,400

130,400 

130,400 

130,400

130,300 

130,300 

130,300 

130,300 

130,400

130,400 

130,400 

130,300 

130,300 

130,400

130,400 

130,300 

130,300 

130,200 

130,200 

130,300

2,552.39 

0

Peb.

130,300 

130,300 

130,200

130,200 

130,200

130,200 

130,300 

130,600 

130,700 

130,700

130,800 

130,800 

131,000 

131,200 

131,300

131,400 

131,500 

131,500 

131,500 

131,500

131,500 

131,400 

131,500 

131,700 

132,400

132,700 

132,800 

133,300

-

_ _ __

2,552.98 

+3,000

Mar.

133,300

133,200 

133,200 

133,100 

133,000

133,100 

133,100 

133,100 

133,000 

133,000

132,900 

132,600 

132,600 

132,800 

132,800

132,700 

132,600 

132,500 

132,400 

132,100

131,900 

131,500 

131,100 

130,800 

130,500

130,200 

129,900 

129,600 

129,300 

128,900 

128,500

2,552.03 

-4,800

Apr-.

128,000

127,500 

127,000 

126,700 

126,500

126,100 

125,800 

125,500 

125,400 

125,200

125,000 

124,700 

124,500 

124,300 

124,200

123,900

124,100 

124,500 

124,600 

124,700

124,700 

124,700 

124,800 

124,900 

125,000

125,200 

125,300 

125,500 

125,600 

125,600

2,551.46 

-2 , 900

May

125,400 

125,100 

124,800 

124,700

124,900

125,300 

125,900 

126,300 

126,700 

127,000

127,000 

127,200 

127,300 

127,600 

127,800

128,000 

128,200 

128,800 

132,900 

135,100

137,100 

138,400 

139,900 

141,100 

142., 2 00

143,200 

144,500 

145,800 

147,200 

148,400 

149,900

2,556.07 

+24,300

June

151,800

154,700 

158,500 

162,000 

165,100

168,000 

170,600 

173,300 

176,100 

178,100

179,000 

179,700 

181,000 

182,100 

183,000

183,500 

183,600 

183,800 

183,900 

184,000

183,900 

183,400 

183,000 

182,600 

182,100

181,800 

181,700 

181,900 

181,700 

181,200

2,561.38 

+31,300

July

180,700

179,900 

179,300 

178,200 

177,400

176,500 

175,600 

174,500 

173,500 

172,300

170,800 

169,100 

167,100 

165,100 

162,900

161,800 

161,100 

160,300 

159,400 

158,500

157,500 

156,600 

155,700 

154,700 

153,700

152,700 

151,700 

150,900 

150,000 

148,900 

147,800

2,555.70 

-33,400

Aug.

146,800

145,700 

144,700 

143,500 

142,200

141,200 

140,100 

139,100 

138,100 

137,500

136,700 

135,900 

135,200 

134,500 

133,600

132,800 

132,000 

131,100 

130,200 

129,400

128,500 

127,600 

126,800 

126,000 

125,300

124,400 

123,500 

122,700 

121,900 

121,300 

120,900

2,550.49 

-26,900

Sept.

120,300

119,900 

119,300 

118,700 

118,100

117,400 

116,800 

116,200 

115,500 

114,900

114,400 

113,900 

113,400 

113,100 

112,700

112,300 

112,000 

111,600 

111,400 

111,100

110,800 

110,500 

110,200 

109,900 

109,500

109,100 

108,700 

108,300 

107,800 

107,400

2,547.58 

-13,500

Calendar year- 1956. ................... * +51,730

Water- year- 1956-57.................... * -46,300

t Elevation, In feet, at end of month. 

* Change In contents, In acre-feet.
242 KERN RIVER BASIN

Kern River below Isabella Dam, Calif.

Location.--Lat 35°38'30", long 118°28'55", in Sj-Nwi sec. 30, T. 26 S., R. 33 E., on right 

bank 200 ft downstream from highway bridge, 0.6 mile downstream from Isabella Dam, and

I.6 miles southwest of Isabella.

Drainage area.--2,094 sq mi.

Records available. April 1945 to September 1957. Prior to October 1952, published as 

nbelow Isabella dam site."

Gage.--Water-stage recorder. Datum of gage is 2,435.07 ft above mean sea level (levels

~^>y Corps of Engineers). Prior to Mar. 12, 1952, water-stage recorder at site 0.6 mile 

upstream at different datum. Mar. 12, 1952, to July 26, 1953, staff gage at present 

site and datum.

Average discharge.--12 years, 778 cfs (563,200 acre-ft per year), adjusted for diversion 

since 1945 and for storage and evaporation since 1954.

Extremes.--Maximum discharge during year, 1,320 cfs June 22 (gage height, 8.45 ft); minimum, 0.2 cfs several days in February and March.

1945-53 (prior to regulation by Isabella Reservoir): Maximum discharge, 39,000 cfs 

Nov. 19, 1950 (gage height, 28.6 ft, from floodmark, present site and datum), from 

rating curve extended above 1,100 cfs on basis of slope-area determination of peak 

flow; minimum, 2.1 cfs (regulated) Nov. 27, 1951.

1954-57: Maximum discharge, 2,580 cfs (revised) June 26, 1956 (gage height,

II.06 ft); no flow Oct. 29, 1954.

Revisions.--The maximum discharge for the water year 1956 has been revised to 

2,580 cfs June 26, 1956 (gage height, 11.06 ft), superseding figure published in 

WSP 1445.

Remarks.--Records excellent except those below 10 cfs, which are fair. Flow regulated by 

Tsafella Reservoir beginning Apr. 15, 1954 (see preceding page). Borel Canal (see 

p. 238 ) diverts above station. Diversions for irrigation of about 3,500 acres between 

head of Isabella Reservoir and upstream stations. An additional 6,500 acres in 

reservoir bottom can be irrigated when reservoir stage is low. Records of chemical 

analyses for the water year 1957 are given in WSP 1523.

Revisions. WSP 1345: Drainage area.

Rating table water year 1956-57 (gage height. In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Dec. 1 to Feb. 12)

2.2

2.3

2.4 

2.6

1.9 

5.1

2.9 

3.2 

3.6

4.0

4.5 

5.0 

5.5 

6.0

155

235

345

7.0 

8.0 

8.5

655

1,090

1,340

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

*

(tt)

Mean

Ac-ft

Oct.

203

20?

190

164

152

152

8.2

35

57

57

42

12

5.5 

6.0

6.2

28

60

118

131

122

122

122

*113

101

101

66

35

4.1

3.4

4TT

4.2

2,426.7

78.3

4,810

-20,900

31,930

2,059

291

17,900

Nov.

1.8

2.0

2.2

2.4

2.5

2.5

2.6

2.8

3.0

278

2.8

2.8

2.8 

*2.5

2.5

2.0

1.8

1.9

1.6

1.4

1.2

1.2

1.2

1.4

1.6

1.6

1.6

1.7

1.5

1.5

61.2

2.04

121

-1,600

15,510

1,650

Adjust

264

15,680

Dec.

0.8

1.0

.9

.9

1.0

1.0

.9

.9

.9

.7

.7

.7

.7

.7

2.3

3.6

3.4

*3.4

3.4

3.4

3.4

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.1

3.1

2.8

66.1

2.13

131

-900

14,960

885

Jan.

2.6

2.6

2.6

2.6

2.8

2.8

2.8

2.8

2.8

2.8

3.0

3.1

3.1 

3.1

3.1

3.1

3.2

3.2

3.2

3.4

3.2

*3.2

3.1

3.1

3.1

7.9

2.0

2.0

1.9

1.9

1.8

91.9

2.96

182

0

15,660

618

ed for change Ir

245

15,080

268

16, '460

Feb.

2.5

2.5

2.5

2.5

2.6

2.6

2.6

2.6

2.6

2.6

2.6

*2.5

2.5 

4.2

276

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.2

1.2

1.2

1.4

_

_

58.5

2.09

116

+3,000

21,420

729

Mar.

679

739

634

550

526

522

568

641

504

21

.9

.3

177

1.6

1.0

.7

.5

.4

1.7

2.0

*1.7

.6

.3

1.7

1.9

1.5

1.8

1.4

2.2

26

46

5,479.9

177

10,870

-4,800

22,810

1,257

reservoir* cont

455

25,260

490

30,140

Apr.

56

56

29

5.7

17

54

90

80

35

15

567

687

29S 

116

1-20

*96

30

2.0

1.9

23

57

25

2.0

16

53

76

87

126

190

287

3,294.6

110

6,530

-2 , 900

32,170

1,828

May

381

411

411

411

397

355

366

348

307-

294

283

239

153

*122

138

138

132

137

137

155

176

155

135

135

178

220

289

338

355

400

422

8,118

262

16,100

+24,300

34,610

2,221

June

476

49T

540

923

*1,200

1,240

1,260

1,140

981

963

981

990

976 

963

914

860

981

1,060

1,140

1,220

1,280

1.310

1,280

1,260

1,280

1,280

1,200

986

954

958

31,087

1,036

61,660

+31,300

33,360

4,587

July

864

819

735

815

767

735

735

735

715

787

891

*972

1,030 

1,030

1,030

623

253

305

333

326

298

285

285

285

305

300

253

218

21& 2"79

233

17,417

562

34,550

-33,400

34,710

5,143

Aug.

220

220

218

243

255

255

239

207

124

81

55

40

40 

40

40

40

61

74

104

86

72

92

53

24

57

76

76

35

8.6

*5^9

5T9

3,147.4

102

6,240

-26,900

32,590

4,525

nts, diversion, and evaporation

632

37,630

1,256| 2,200

77,230| 130,900

667

41,000

 268

16,460

Sept.

5.9

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

5.9 

5.9

5.9

5.9

5.9

5.9

5.9

5.7

5.3

5.1

4.8

*47§"

4.9

5.9

6.4

6.8

7.0

7.2

177.2

5.91

351

-13,500

22,490

3,071

209

12,410

Observed Adjusted

Calendar year 1956 : f

Hater year 1956-57: l>

lax 1,820 Mln 0.7 Mean 497 Ac-ft 361,100 Mean 1,118 Ac-ft 809,500

lax 1,310 Mln 0.3 Mean 196 Ac-ft 141,700 Mean 602 Ac-ft 436,200

* Discharge measurement made on this day.

t Change In contents, In acre-feet, In Isabella Reservoir, furnished by Corps of Engineers.

* Diversion to Borel Canal, In acre-feet.

tt Evaporation, In acre-feet, from Isabella Reservoir, furnished by Corps of Engineers.
KERN RIVER BASIN 243

Kern River near Democrat Springs, Calif.

Location. Let 35°31'20", long 118°40'40", in NE^SE* sec. 6, T. 28 S., R. 31 E., on left 

bank 1.0 mile southwest of Democrat Springs and 2.1 miles upstream from Cow Creek.

Drainage area.--2,264 sq mi.

Records available. July 1950 to September 1957. Prior to October 1954, records for Kern 

River and Kern River No. 1 conduit published separately.

Gage.--Water-stage recorder. Altitude of gage is 1,850 ft (from topographic map).

Average discharge. 7 years, 904 cfs (654,500 acre-ft per year), combined flow of Kern 

River and Kern River No. 1 conduit.

Extremes (river only) . Maximum discharge, 1,630 cfs June 6 (gage height, 10.23 ft); minimum daily, 1.4 cfs Dec. 31, Jan. 13.

1950-57: Maximum discharge, 40,000 cfs Nov. 19, 1950 (gage height, 30.7 ft), from 

rating curve extended above 8,700 cfs on basis of computation of peak flow over dam 

(basic data for computation furnished by Southern California Edison Co.); minimum 

daily, 0.1 cfs Oct. 30 to Nov. 12, 1955.

Remarks. Records fair. Records of daily discharge presented herein include flow of Kern 

River No. 1 conduit which diverts from left bank of Kern River in sec. 13, T. 28 S., 

R. 30 E., for power development; water is returned to river 7 miles below station. 

Plow regulated by Isabella Reservoir beginning in 1954 (see p. 241). Many diversions 

above station for irrigation.

Cooperation. Water-stage-recorder graph and 13 discharge measurements for river, and 

water-stage-recorder graph and 15 discharge measurements for conduit, furnished by 

Southern California Edison Co. in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

752

*75?

752

736

715

716

694

559

600

614

614

587

552

551

540

543

586

612

691

674

673

675

670

662

652

652

594

578

518

362

*277

19,153

618

37,990

Nov.

276

275

274

247

207

276

350

31(5

310

300

295

300

*295

285

260

246

285

256

256

255

255

254

252

251

252

258

264

264

263

261

8,132

271

16,130

Dec.

252

252

253

251

254

26S

268

253

252

253

252

254

269

292

292

288

265

263

256

*256

254

240 240"

240

240

240

244

256

256

256

256

7,965

257

15,800

Jan.

256

256

256

256

255

*240

241

239 24'0

235

183

T5I

368

418 56"2"

351

264

266

266

282

317

308

307

*295

268

274

307

268

*264

241

242

8,534

275

16,930

Feb.

250

301

305

296

267

247

267

315

407

409

409

414

427

*428

423

411

407

404

409

410

402

378

386

410

430

476

525

551

-

10,764

384

21,350

Mar.

630

738

713

590

*536

531

525

599

673

623

574

540

492

478

*420

429

469

484

469

494

504

524

544

534

502

512

534

551

554

551

603

16,920

546

33,560

Apr.

641

*657

652

625

589

584

603

624

625

590

576

588

606

614

614

610

591

*560

549

551

564

584

597

608

624

646

671

700

754

*844

18,641

621

36,970

May

959

1,080

1,120

1.150

1,130

1,100

1,070

1,060

1,030

982

958

937

889

821

785

774

765

757

769

765

780

786

769

756

750

768

792

872

909

942

984

27,989

903

55,520

June

1,020

1,070

1,090

*1,240

1,710

1,800

1,780

1,540

1,510

*1,460

1,440

1,490

1,480

1,470

1,450

1,400

1,420

1,570

1,650

1,740

1,790

1,850

1,830

1,810

1,850

1,850

1,810

1,600

1,520

1,510

46,690

1,556

92,610

July

1,480

*1,590

1,370

1,340

1,370

1,310

1,500

1,290

1,280

1,280

1,400

1,470

1,560

1,560

1,560

1,450

*793

834

852

872

850

854

829

827

835

847

858

796

782 7&-Z

IOJ

*804

54,786

1,122

69,000

Aug.

755" 795

778

777

791

795

782

761

734

651

616

578

559

546

543

541

540

537

539

548

552

547

550

526

509

515

519

519

512

484

*408

18,831

607

37,550

Sept.

391

424

424

425

428

429

429

450

45ff

419

597

394

374

345

325

*525

504 5S9"

350

515

509

309

*308

512

553

354

356

357

358

*360

11,001

567

21,820

Calendar year 1956s Max 2,390 Min 207 Mean 1,017 Ac-ft 738,400

Water year 1956-57: Max 1,830 Min 183 Mean 629 Ac-ft 455,000

Discharge measurement of river made on this day.

5105E9 O - 59 - 17
244 KERN RIVER BASIN

Kern River below Kern Canyon powerhouse, Calif.

Location. Lat 35°26'10", long 118°48'50", in NW£SE£ sec. 1, T. 29 S., R. 29 E., on left

bank 1 mile downstream from Kern Canyon powerhouse, 1.3 miles upstream from Cottonwood

Creek, and 11 miles northeast of Bakersfield. 

Drainage area. --2, 327 sq mi. 

Records available. --October 1893 to September 1957. Prior to Oct. 1, 1953, published as

"near Bakersfield . " 

Page. --Water- stage recorder. Altitude of gage is 650 ft (from topographic map). Prior

to Oct. 1, 1953, at site 11 miles downstream at different datum.

Average discharge. --62 years (1893-1906, 1908-57), 947 cfs (685,600 acre-ft per year). 

Extremes .--Maximum discharge during year, 2,040 cfs June 11 (gage height, 9.39 ft); minimum daily, 200 cfs Jan. 11.

1893-1957: Maximum discharge, 36,000 cfs Nov. 19, 1950 (gage height, 14.2 ft, site

and datum then in use); minimum daily, 74 cfs Sept. 19, 1948. 

Remarks. Records good except those for period of no gage-height record, which are fair.

Flow regulated by Isabella Reservoir beginning in 1954 (see p. 241), and three powerplants; many diversions above station for irrigation. 

Cooperation. --Water- stage-recorder graph furnished by Pacific Gas & Electric Co., in connection with a Federal Power Commission project. 

Revisions (water years ).--WSP 861: Drainage area. WSP 1151: 1916.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

760

760

766

754

715

715

695

567

598

616

616

585

554

549

540

544

585

612

690

675

675

675

670

660

650

650

594

576

516

364

270

19,196

619

38,070

Nov.

264

261

261

235

206

279

350 309"

306

303

294

300

**294

285

261

247

285

249

244

244

241

241

241

241

241

244

255

258

255

258

7,952

265

15,770

Dec.

244

244

244

244

*244

270

267

249

247

247

244

247

258

291

291

288

261

258

249

*249

247

238

235

233

233

235

235

249

249

247

249

7,786

251

15,440

Jan.

249

249

249

244

249

233

233

230

227

230

200

210

350

420

385

350

258

252

261

273

318

306

303

297

258

270

303

264

255

235

235

8,396

271

16,650

Feb.

238

297

300

291

261

241

255

300

413

416

413

416

444

448

432

420

413

406

410

413

406

382

385

413

428

472

528

544

-

10,785

385

21,390

Mar.

631

742

720

585

532

528

524

594

675

626

576

540

492

484

*420

428

472

484

468

492

500

520

540

536

504

512

532

554

554

549

603

16,917

546

33,550

Apr.

626

640

640

603

558

580

635

680

660

608

598

660

710

705

720

720

690

621

594

594

612

635

*598

580

590

640

665

670

730

838

19,400

647

38,480

May

940

1,030

1.040

1,030

1,030

991

970

977

940

910

898

874

820

715

T20

720

720

720

748

736

784

778

725

715

715

790

820

922

928

958

1,020

26,684

861

52,930

June

1,040

1,090

1,100

1,280

1,670

1,770

1,760

1,760

1,480

*1,470

1,460

1,510

1,500

1,490

1,470

1,390

1,450

1,590

1,640

1,770

1,840

1,890

1,880

1,820

1,810

1,790

1,800

1,560

1,480

1,480

47,040

1,568

93,300

July

1,450

1,360

1,330

1,330

1,360

1,300

1,300

1,300

1,290

1,280

1,430

1,500

1.590

1,590

1,580

1,520

*796

844

868

886

868

838

838

832

844

874

844

790

'T^R 784 

I yo

820

35,032

1,130

69,480

Aug.

802

802

802

832

832

826

796

736

710

650

620

580

560

550

540

540

540

540

540

550

550

550

550

530

510

510

520

520

510

480

410

18,988

613

37,660

Sept.

390

425

425

425

425

430

430

430

430

420

400

400

380

350

330

320

300

310

330

320

310

310

*310

303

322

340

350

350

350

350

10,965

366

21,750

Calendar year 1956: Max 2,490 Mln 206 Mean 1,042 Ac-ft 756,400

Water year 1956-57: Max 1,890 Mln 200 Mean 628 Ac-ft 454,500

* Discharge measurement made on this day. ** Field estimate made on this day. 

Note.--No gage-height record Aug. 9 to Sept. 23; discharge estimated on basis of 1 discharge 

measurement and records for Kern River near Democrat Springs.

TULARE LAKE BASIN

March 1906 to SeptemFebruary 1937 to SepTulare Lake in Kings County, Calif.

Location.--Lat 36°03'10", long 119°49'35", on west side of levee at "Navy White House" 

2.2 miles southwest of Chatom Ranch and 9.5 miles south of Stratford.

Records available. March 1906 to September 1920 (incomplete), February 1937 to September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level. 

Eer 1920 staff gages at various sites and at different daturns, 

tember 1957 water-stage recorder or staff gage at various sites.

Extremes.--1906-57: Maximum elevation, 196.8 ft June 27, 28, 1941; lake dry or practically so during parts of 1906, 1914-16, 1919, 1937, 1946, 1950-53, 1955-56; lake dry 

during entire years 1920-22, 1924-36, 1947-49, 1954, 1957.

Lake elevation of June 27, 28, 1941, was highest known since about 1890.

Remarks. Lake was dry entire water year 1957. Tulare Lake receives water from Kings, 

Kaweah, and Tule Rivers during high-water periods and occasionally from Kern River, 

Deer Creek, and several small intermittent streams. Its natural boundary has been 

greatly altered by construction of levees and other reclamation work. Elevation at 

lowest point of lake bed is now about 180 ft above mean sea level.

Cooperation.--Record furnished by Tulare Lake Basin Water Storage District.
TULARE LAKE BASIN 245

North Fork of Middle Fork Tule River, near Springville, Calif.

Location. Lat 36°11', long 118°42', in sec. 23, T. 20 S., R. 30 E. , on right bank 1 mile 

upstream from mouth, 2 miles downstream from Hossack Creek, and 7.8 miles northeast of 

Springville.

Drainage area.--39.5 sq mi.

Records available.--November 1939 to September 1957. January 1909 to December 1912 at 

site 2 miles upstream, records not equivalent. Prior to October 1954, records for 

river and conduit published separately.

Gage. Water-stage recorder. Altitude of gage is 2,850 ft (from topographic map) -

Average dls charge. 17 years (1940-57), 58.3 cfs (42,210 acre-ft per year), combined flow 

of North Fork of Middle Fork Tule River and Pacific Gas & Electric Co. conduit.

Extremes (river only). Maximum discharge during year, 1,860 cfs May 19 (gage height, 

6.71 ft), from rating curve extended above 300 cfs by logarithmic plotting, minimum 

daily, 0.4 cfs Oct. 22-24.

1939-57: Maximum discharge, 12,400 cfs Dec. 23, 1955 (gage height, 12.47 ft, from 

floodmarks), from rating curve extended above 100 cfs on basis of critical-depth determination; no flow Sept. 10, 11, 1955.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Records of daily discharge presented herein include flow of pacific Gas & Electric 

Co. conduit which diverts 2.5 miles upstream from station; water is returned to North 

Fork of Middle Fork Tule River 1.5 miles downstream from station.

Cooperation.--Water-stage-recorder graph and 1 discharge measurement for river and waterstage-recorder graph and 1 discharge measurement for conduit, furnished by Pacific 

Gas and Electric Co. in connection with a Federal Power Commission project.

Revisions (water years). WSP 1445: 1951.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

£7

£8

29

30 

31

Total

Mean

Ac-ft

Oct.

18

18

19

19

23.

19

19

19

19

19

19

19

19

19

18

18

18

18

*18

18

18

17

17

18

18

18

18

18

18

19 

23

578

18.6

1,150

Nov.

19

19

19

19

19

19

18

18

18

18

18

18

18

18

ITIS

18

18

18

18

18

18

18

18

18

*17

17

17

17

17

540

18.0

1,070

Dec.

16" 16

16

17

27.

22

19

18

18

18

*18

18

19

19

18

18

18

18

17

17

16

17

17

17

17

17

16

*16

16

16 

16

548

17.7

1,090

Jan.

16

16

16

16

16

16

16

16

16

16

16

22

72

26

22

20

19

18

18

19

20

18

18

18

18

19

18

18

17

17 

18

611

19.7

1,210

Feb.

19

18

18

18

18

20

21

52

33

32

*42

45

43

37

35

34

33

31

28

26

26

24

37

38

81.

48

43

49

-

949

33.9

1,880

Mar.

50

49

46

40

38

40

42

*42

44

43

43

39

36

33

33

42

34

32

31

30

30

28

27

28

29

31

32

32

33

32 

33

1,122

36.2

2,230

Apr.

36

34

33

37

42

45

44

42

42

43

*43

43

42

48

44

42

52

56

48

49

48

44

46

51

55

57

68

77

81

82.

1,474

49.1

2,920

May

81

78

74

76

80

85

*89

83

72

66

68

65

61

63

62

64

65

343

785

*255

194

161

146

129

131

136

135

133

127

123 

123

4,153

134

8,240

June

130

135

134

129

123

119

114

107

106

103

93

89

94

87

80

77

69

66

63

60

57

54

51

49

47

46

44

42

40

39

2,447

81.6

4,850

July

37

36

*35

34

33

32

32

31

31

30

28

28

27

27

28

26

25

24

24

24

23

23

23

22

22

22

21

21

21

20

25

830

26.8

1,650

Aug.

20

*25

19

19

19

19

19

19

19

18

18

18

18

18

17

17

17

17

17

17

17

17

17

16

16

16

16

16

16

17 

17

546

17.6

1,080

Sept.

16

16

16

16

16

16

15

15

15

15

15

15

15

15

15

15

16

18

17

15

15

15

15

13 »T5

15

15

15

16

15

461

15.4

914

Calendar year 1956: Max 774 Mln 16 Mean 64.4 Ac-ft 46,750

Water year 1956-57 : Max 785 Mln 13 Mean 39.1 Ac-ft 28,280

* Discharge measurement of rivet- made on this day.

Note. No gage-height record at river gage Feb. 27 to Mar. 23; discharge estimated on basis of 

1 discharge measurement, weather records, and recorded range In atage.
246 TULARE LAKE BASIN

Tule River near Porterville, Calif.

Location. Lat 36°05', long 118°55', in NW-c sec. 25, T. 21 S., R. 28 E., near right bank 

on downstream side of highway bridge, I mile upstream from South Fork and 6 miles east 

of Porterville.

Drainage area. 261 sq mi.

Records available. May 1901 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 580 ft (from topographic map). Prior 

Ub Oct. 1, 1930, staff gage at site 75 ft downstream at different datum.

Average discharge. 56 years, 141 cfs (102,100 acre-ft per year).

Extremes.--Maximum discharge during year, 4,430 cfs May 19 (gage height, 7.00 ft), from 

rating curve extended above 1,700 cfs on basis of slope-area determination at gage 

height 11.80 ft; minimum, 0.7 cfs Aug. 19.

1901-57: Maximum discharge, 25,500 cfs Nov. 19, 1950 (gage height, 13.75 ft), from 

rating curve extended above 750 cfs on basis of slope-area determination of peak flow; 

no flow during parts of 1934-35, 1947, 1950, 1956.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Diversions for irrigation of about 7,000 acres above station (from 1950 Census of 

Irrigation map). Power is developed on Middle Fork and tributaries. Records of 

chemical analyses for the water year 1957 are given in WSP 1523.

Revisions (water years) .--WSP 881: 1902-y (ye£__ u __ ---,,- - -- 

areJTWSP 1445:I902-11(M), 1913, 1914(M), 1916-17(M), 1922(M), 1927(M).

Drainage

Rating tables, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Oct. 3O to Jan. 13)

Oct. 1 to May 19

1.1

1.2

1.3

2.5

3.0

5.5

8.0

80

172

310

19 to Sept. 30

5 2.5

3 3.0

1 3.5

4 4.0

5.0

6.0

152

265

425

660

1,420

2,680

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8'

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

H6.8

19

34

26

26

24

23

22

21

24

24

24

24

*24

24

24

24 

24

21

18

18

19

20

21

22

24

24 

23

27

667.0

21.5

1,320

Nov.

32 *30

32

32

30

29

30

28

27

26

26

27

27

28

27

27

27

26

26 

26

27

27

25

24

24

24

25

24

24

24

811

27.0

1,610

Dec.

if *24

25

31

52

41

37

33

32

32

33

35

36

36

35

35

34

33 

33

32

32

34

35

34

33

32

32

32 

32

32

1,025

33.1

2,030

Jan.

33

32

*3T

33

34

34

33

33

32

33

33

35

164

Tie

74

62

55

52

49 

64

76

60

54

51

48

69

62

56

54

52 

50

1,665

53.7

3,300

Feb.

*50 

50

50

50

49

49

50

145

154

98

121

134

136

221

104

98

92

86

79

73

67

64

*77

97

204

154

125

117

-

2,794

99.8

5,540

Calendar year 1956 : Max 3,080 Min 5.4

Mar.

*lfi£ 

179

172

138

121

116

116

114

128

179

134

119

109

100

95

130

109

98

97 

94

90

89

82

79

76

7476-

77

79

*80

80

3,416

110

6,780

Apr.

83

80

73

74

82

89

90

84

79

72

65

64

6270-

77

66

73

Tso- 186

iso

134

126

112

110

123

130

150

159

157

 150

3,080

103

6,110

May

144 

130

121

117

112

112

121

*125

112

102

116

136

128

123

126

123

116

203

*2,450 899-

696

525

433

360

a330

a310

*a290

a275

a260

a245

a230

9,570

309

18,980

June

*a|fg

206

197

184

175

169

158

152

179

152

137

132

121

113

108

96

84

75 

72

69

64

58

*50

40

39

37

34

32

29

3,397

113

6,740

July

*i

24

22

21

19

16

16

*15

14

12

12

12

12

12

11

11

10

12 

12

9.6

8.6

8.2

6.8

6.4

5.6

5.6

5.2

4.9

*4.6

4^0

384.5

12.4

763

Aug.

4*1 

3.4

2.8

2.6

3.1

3.1

2.6

2.8

3.1

2.4

2.0

2.0

.9

.8

.6

.3

.3

.4

.3 

.3

.3

.8

.4

.2

.O

.0

.0

.0

.O

.0

.2

59.0

1.90

117

Sept.

1.2 

1.0

1.0

1.0

1.2

1.3

1.2

1.2

*1.0

1.0

1.0

.9

1.0

1.4

1.6

1.9

2.2

7.8

6.4 

8.6

8.6

7.3

6.4

4.6

*3.7

2.8

2.2

2.2

2.H

2.6

86.5

2.86

172

Mean 166 Ac-ft 120,600

Water year 1956-57 : Max 2,450 Mln 0.9 Mean 73.8 Ac-ft 53,460

Peak discharge (base, 600 cfs). --May 19 (5:30 a.m.) 4,430 cfs (7.00 ft).

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of 2 discharge measurements, weather records, 

and records for station at Worth Bridge near Porterville.
TULARE LAKE BASIN 247

South Fork Tule River near Success, Calif.

Location (revised) .--Lat 36°02i30", long 118°51'25", in NW^SWlr sec. 4, T. 22 S., R. 29 E., 

on left bank 0.5 mile upstream from Crew Creek, 4 miles southeast of Success, and 

5 miles upstream from mouth.

Drainage area. 109 sq mi.

Records available. --June 1930 to November 1954, February 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 770 ft (from topographic map). Prior to 

June 26, 1951, at site 0.4 mile downstream at different datum.

Average discharge. --25 years, 41.8 cfs (30,260 acre-ft per year); median of yearly mean 

discharges, 31 cfs (22,400 acre-ft per year).

Extremes . Maximum discharge during year, 1,120 cfs May 19 (gage height, 6.96 ft); no flow 

Aug. 3 to Sept. 30.

1930-54, 1956-57: Maximum discharge, 7,100 cfs Nov. 19, 1950 (gage height, 8.35 ft, 

site and datum then in use; 11.36 ft, present site and datum), from rating curve 

extended above 1,600 cfs on basis of slope-area determination of peak flow; no flow for 

periods most years.

Remarks . --Records good except those for periods of no gage-height record which are fair. 

Diversions for irrigation of about 1,600 acres, approximately 1,500 acres of which are 

downstream from station.

Revisions (water years) . WSP 1445: 1952-53(P), drainage area.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, in 

cubic feet per second)

Oct. 1 to Nov. 7 Nov. 8 to Sept. 30

3.1

3.2

3.3 

3.5 

3.7

1.1

2.7

5.3

14

27

2.75 0

2.8 .1

2.9 .2

3.0 .5

3.1 1.4

3.2 2.8

3.3

3.4

3.5 

3.7 

4.0

4.8 

7.7

4.5 

5.0 

5.5 

6.0

118

225

380

580

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Discharge, in cubic feet per second, water year October 1956 to September 1957

Oct.

1.7

27T

2.4

9.3

16_

11

12

9.0

7.8

7.4

7.4

7.8

6.9

5.3

4.8

4.3

3.4

2.7

2.7

2.7

2.4

2.2

*2.5

3.2

3.5

3.5

3.5

3.7

4.0

4.8

12

172.0

5.55

341

Nov.

~8.2 10

8.2

7.8

7.8

7.4

*7.4

6.5

6.2

6.2

5.9

5.6

5.6

6.2

6.8

6.8

6.8

6.5

6.8

6.8

6.2

5.6

4.8

4.6

4.6

4.6

4.6

4.6

4.3 4~73~

187.7

6.26

372

Dec.

4.1

3±1

3.9

3.9

7.1

*22

10

8.5

7.7

8.5

8.5

8.9

8.9

9.3

8.9

8.5

8.1

7.7

.7

.4

.4

>.8

.1

.7

.4

.4

.4

.4

.4

.4

.4

244.3

7.88

485

Jan.

7.4

7.1

*6.5

6.2

7.1

7.

7.

7.

7.

7.

7.

8.

57

2F

15

12

11

10

9.7

16

16

14

12

12

12

19

13

14

12

11

12

390.2

12.6

774

Feb.

12

*12

11

IT

11

12

12

*72

51

30

38

38

37

30

25

24

21

19

17

16

16

15

22

24

56

33

27

27

-

719

25.7

1,430

Mar.

63

59

59

39

33

*31

29

27

35

50

38

33

31

28

27

40

30

27

27

27

27

25

24

23

22

22

22

21

21

20

50

980

31.6

1,940

Apr.

21

20

19

19

*19

20

19

18

18

18

14

12

11

IT

IS

13

17

5333-

38

35

31

29

30

32

33

33

30

28

30

723

24.1

1,430

May

26

24

*22

22

19

18

19

19

18

18

23

30

26

24

25

24

20

50

605

*2TO

193

148

116

98

85

78

70

65

61

55

51

2,262

73.0

4,490

June

47

44

39

37

33

31

*28

27

27

42

32

27

24

23

22

22

19

17

15

 14

14

14

13

11

9.7

9.3

8.5

7.7

7.4

774

672.0

22.4

1,330

July

7.4

678

6.2

5.9

5.3

5.3

4.8

*4.1

3.7

3.1

3.0

2.2

2.1

2.1

2.3

2.2

1.4

1.2

1.2

1.2

1.4

1.6

1.3

1.2

.9

.7

.6

.4

.2

*.2

.!_

80.1

2.58

159

Aug.

0.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.006

0.4

Sept.

0

0

0

Calendar year 1956: Max - Min - Mean - Ac-ft -

Water year 1956-57: Max 605 Min 0 Mean 17.6 Ac-ft 12,750

Peak discharge (base, 200 efs). May 19 (6:30 a.m.) 1,120 efs (6.96 ft)._____________________

* Discharge measurement made on this day.

Note. No gage-height record Oct. 16-18, Apr. 7-10, Aug. 29 to Sept. 14j discharge estimated on 

basis of recorded range in stage.
248 TULARE LAKE BASIN

Tule River at Worth Bridge near Porterville, Calif.

Location (corrected). Lat 36°02'SS", long 118°56'15", in NE^NW^ sec. 3, T. 22 S., 

R. 28 E., on pier of highway bridge, 2 miles downstream from South Fork and 5 miles 

east of Porterville.

Drainage area. 395 sq mi.

Records available. October 1953 to September 1957 in reports of Geological Survey.

October 1944 to September 1957 in reports of California Department of Water Resources.

Gage. Water-stage recorder. Altitude of gage is 520 ft (from topographic map).

Extremes. Maximum discharge during year, 5,750 cfs May 19 (gage height, 15.42 ft); no 

flow Aug. 26-30, Sept. 3-17.

1953-57: Maximum discharge, 27,000 cfs Dec. 23, 1955 (gage height, 21.65 ft), from 

rating curve extended above 1,400 cfs on basis of studies of upstream peaks; no flow 

during parts of 1954-57.

Remarks. Records good except those for June 24 to July 9, which are fair. Diversions 

for irrigation of about 200 acres between stations near Porterville and at Worth 

Bridge. Water diverted by Pioneer ditch above station for irrigation of about 

1,700 acres downstream.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O 

31

Total

Mean

Ac-ft

Oct.

2.2

2.8

3.8

15

55

41

40

32

29

27

27

30

30

27

26

25

22

21

21

22

20

17

*16

18

19

19

20

21

22 

21

29

720.8

23.3

1,430

Nov.

40

31

29

28

26

25

*24

22

19

18

18

18

18

17

18

18

18

18

18

18

18

18

15

13

13

13

13

11

14 

12

581

19.4

1,150

Dec.

11

11

10

TTJ

18

*62

44

33

27

25

23

23

24

24

22

20

20

18

17

14

14

18

23

30

28

27

35

45

43

42 

42

803

25.9

1,590

Jan.

45

*43

42

42

33

1818"

21

18

21

20

23

163

159

104

87

79

64

45

72

*98

68

58

54

49

74

73

66

60

56 

52

1,825

58.9

3,620

Feb.

52

 52

50

BTJ

50

50

54

*182

210

128

143

159

161

141

122

114

107

104

93

85

84

79

*87

116

195

147

114

110

3,039

109

6,030

Mar.

191

201

194

156

141

*136

 139

136

141

215

161

145

132

126

122

164

141

126

128

134

130

126

114

110

109

109

107

107

105

107 

107

4,260

' 137

8,450

Apr.

109

105

*97

97

104

109

109

105

98

85

62

58

55

81

68

68

199

14T

141

143

 141

126

128

139

147

161

173

168

161

3,448

115

6,840

May

150

141

 130

124

116

116

118

*122

114

105

114

145

136

126

136

 132

122

201

*5,160

*1,100

865

684

610

*470

401

358

 313

310

*306

283

11,497

371

22,800

June

270

263

*251

235

215

199

 188

171

161

196

173

147

134

122

112

107

92

79

67

*62

60

55

50

41

30

30

25

23

22

20

3,600

120

7,140

July

19

17

15

14

12

11

10

8

*6.6

5.5

5.8

5.4

4.6

4.4

 5.6

9.1

8.9

7.1

4.8

5.1

3.8

3.6

3.1

2.8

3.2

3.7

3.1

2.7

2.7

*2 .4 

2.2

212.2

6.85

421

Aug.

2.3

2.0

1.8

1.5

1.4

1.5

1.4

1.2

1.3

1.2

1.2

1.1

.9

.7

.6

.5

.2

.2

.4

.2

.1

!i.1.1

0

0

0

0

.1

22.2

0.72

44

Sept.

0.1

.1

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

»0

1.1

~7F

1.2

1.1

1.0

1.0

*1.0

.8

.5

.4

.5

.5

12.5

0.42

25

Calendar year 1956 : Max 4,170 Min 2.2 Mean 208 Ac-ft 151,300

Water year 1956-57 : Max 3,160 Min 0 Mean 82.2 Ac-ft 59,540

Peak discharge (base, 800 cfs). May 19 (6 a.m.) 5,750 cfa (15.42 ft). 

* Discharge measurement or observation of no flow made on thla day.
TULARE LAKE BASIN 249

Marble Pork Kaweah River at Potwisha Camp, Calif.

Location.--Lat 36°31'10", long 118°48 I 10", in SE£ sec. 23, T. 16 S., R. 29 E., on left 

bank 0.1 mile north of Potwisha Camp and 0.3'mile upstream from confluence with Middle 

Pork Kaweah River.

Drainage area. 50.6 sq mi.

Records available. March 1950 to September 1957. Prior to October 1954, records for 

river and conduit published separately.

Gage. Water-stage recorder and concrete control. Altitude of gage is 2,150 ft (from 

topographic map).

Average discharge. 7 years, 104 cfs (75,290 acre-ft per year), combined flow of Marble 

Fork Kaweah River and Marble Fork Kaweah River No. 3 conduit.

Extremes (river only). Maximum discharge during year, 1,900 cfs May 19 (gage height, 

7.67 ft); minimum daily, 0.3 cfs Feb. 19.

1950-57: Maximum discharge, 12,500 cfs Dec. 23, 1955 (gage height, 13.4 ft), from 

rating curve extended above 1,100 cfs on basis of slope-area determination of peak 

flow; no flow Sept. 5-15, Oct. 24-28, 1953.

Remarks. Records good except those below 20 cfs, which are fair. Records of daily discharge presented herein include flow of Marble Pork Kaweah River No. 3 conduit which 

diverts from left bank of Marble Pork 0.3 mile above station; water is returned to 

Kaweah River 2.7 miles downstream from confluence of Marble and Middle Porks.

Cooperation. Water-stage recorder graph and 12 discharge measurements for the river and 

water-stage recorder graph and 14 discharge measurements for the conduit, furnished by 

Southern California Edison Co.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

e

i

8

10

11

12

13

1415'

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

6.0

OJ

6.2

7.3

9.9

8.7

7.6

9.6

7.9

7.3

8.4

9.6

8.4

7.9

7.6

7.3

7.0

7.0

*7.0

6.8

6.5

6.5

6.8

8.1

8.1

8.1

*7.6

7.6

7.9

12°

240.8

7.77

478

Nov.

9.9

8.7

9.6

9.9

9.9

9.9

~9". 10 9

9.9

9.9

9.6

9.3

9.3

9.3

8.7

8.4

8.4

8.4

8.1

7.9

*7.6

7.4

*7.1

7.0

6.8

7.0

6.8

6.8

*6.5

6 . 2

254.2

8.47

504

Dec.

6.2

6.2

5.7

6T

7.3

10

*8.2

7.1

7.9

8.2

8.4

9.6

10

12

T5

10

9.6

9.2

8.3

8.1

8.1

7.2

8.6

8.1

7.2

7.2

7.8

*7.5

7.5

7.8

7.8

253.3

8.17

502

Calendar year 1956 : Max 691

Jan.

7.2

7.2

7.0

*7.2

7.8

7.2

7.8

7.2

6.7

T75

7.5

8.6

8525"

16

15

14

12

13

14

14

13

14

*13

13

13

13

13

12

12

12

425.2

13.7

843

Feb.

13

TS

13

13

13

13

13

36

27

24

41

51

*56

47

41

43

43

39

35

33

29

28

46

45

108

65

54

55

_

1,037

37.0

2,060

Mar.

62

55

49

45

46

*52

59

62

55" 64

54

54

46

44

42

47

39

38

38

37

38

*34

32

34

41

48

51

*54

52

50

56

1,478

47.7

2,930

Apr.

59

51

58

76

103

112

98

102

96

108

108

*102

115

130

97

88

90

85

74

72

67

63

66

84

*101

105

117

139

149

13T

2,851

95.0

5,650

May

157

164

183

217

241

254

227

*2CO

164

152

140

126

122

15?

122

134

155

693

870

515

301

267

231

205

221

270

309

312

286

286

387

7,874

254

15,620

June

*478

531

577

580 560"

*520

531

445

374

299

304

366

388

328

284

269

281

289

319

296

265

254

262

266

275

*251

*233

220

185

156

10,386

346

20,600

July

142

124

121

118

109

95

78

76

70

65

60

55

49

43

41

38

38

33

31

30

26

23

23

21

20

20

*19

18

16

Tf

16

1,635

52.7

3,240

Aug.

11

13

13

13

13

12

12 12

11

11

10

9.9

9.5

9.1

8.8

8.5

8.3

7.9

7.6

7.3

7.3

7.1

6.8

6.5

6.4

6.2

6.2

1^1 *6.1

6.2

282.0

9.10

559

Sept.

6.4

6.0

5.6

5.4

5.3

*5.3

5.0

4^8.

4.8

4.8

5.0

5.1

5.1

5.1

5.1

5.3

11

12

8.2

7.3

6.5

5.9

5.7

5.2

5.2

*5.4

5.6

5.6

5.9

7.0

180.6

6.02

358

Mln 5.7 Mean 123 Ac-ft 89,560

Water year 1956-57: Max 870 Mln 4.8 Mean 73.7 Ac-ft 53,340

Peak discharge (base, 450 cfa).--May 19 (1 a.m.) 1,900 cfs (7.67 ft)j June 3 (8 p.m.) 815 cfs 

(5.95 ft).

* Discharge measurement of river made on this day.
250 TULARE LAKE BASIN

North Fork Kaweah River at Kaweah, Calif.

Location.--Lat 36°29', long 118°55', in SE£ sec. 34, T. 16 S., R. 28 E., on left bank 

1.2 miles upstream from Mannikin Creek, 1.5 miles north of Kaweah, and 3 miles 

upstream from mouth.

Drainage area.--128 sq mi.

Records available. October 1910 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 1,027.7 ft above mean sea level (riverprofile survey). Prior to Oct. 26, 1933, staff gage at site 1 mile downstream at 

different datum.

Average discharge. 46 years (1911-57), 100 cfs (72,400 acre-ft per year); median of 

yearly mean discharges, 82 cfs (59,400 acre-ft per year).

Extremes.--Maximum discharge during year, 3,790 cfs May 19 (gage height, 7.46 ft); minimum, 4.5 cfs Sept. 12.

1910-57: Maximum discharge, 21,500 cfs Dec. 23, 1955 (gage height, 14.1 ft, from 

profile of floodmarks), from rating curve extended above 3,200 cfs on basis of slopearea determination of peak flow; no flow for many days July to October 1924.

Remarks.--Records good, except those below 10 cfs, which are fair. Diversions for irrigat ion of about 60 acres above station.

Revisions (water years). WSP 1445: 1951(M).

Rating table, water year 1956-57 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Aug. 11-15, Sept. 1-30)

0.95

1.0

1.1 

1.3 

1.5

5.0

5.4

6.0

7.5

11

1.7 

1.9 

Z.3 

2.8

3.4 

4.0 

5.0 

6.0

280

505

1,040

1,890

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

7.9

7.8

778

9.3

26_

16

15

13

13

12

12

12

12

11

11

10

9.5

»9.2

9.0

9.2

8.8

8.8

9.0

11

11

11

11

12

12

12

20

359.3

11.6

713

Nov.

IB- 19

14

14

*14

14

14

13

13

13

12

14

15

15

13

13

13

13

13

13

13

13

13

13

12

12

12

12

12

12

401

13.4

795

Dec.

12

12

12

12

15

28

»20

16

15

16

16

16

17

17

16

15

15

15

13

13

13

13

13

13

13

13

13

13

12

12

*12

451

14.5

895

Jan.

12

T?

12

12

12

13

12

»12

12

12

12

13

~64 191

36

28

26

23

22

28

 31

26

24

23

22

28

23

23

21

22

22

829

26.7

1,640

Feb.

23

24

24

22

2T

23

24

73

76

51

72

84

95

82

66

70

71

60

»58

52

46

43

116

103

254

146

106

109

1,976

70.6

3,920

Mar.

174

138

109

106

91

100

108

106

117

105

»96

92

81

73

70

103

82

76

72

68

70

66

62

6?

65

73

78

81

78

76

81

2,750

89.0

5,470

Apr.

81

76

79

»88

103

109

105

99

95

98

100

98

95

106

102

91

100

150

112

120

127

111

100

109

136

144

160

164

16?

144

3,364

112

6,670

May

140

 131

124

124

ViZ124

127

126

117

111

119

119

109

129

127

124

109

452

1.660

550

»460

373

328

283

262

250

240

222

210

200

192

7,764

250

15,400

June

184

180

176

168

160

148

138

129

127

140

117

106

99

92

86

81

76

71

66

59

57

54

50

»45

42

41

39

38

38

3_7

2,844

94.8

5,640

July

3432"

30

29

27

26

26

26

24

*24

23

22

19

19

19

19

18

17

16

17

18

17

17

16

16

15

14

14

13

12 »12"

631

20.4

1,250

Aug.

9.5

970

8.5

8.5

8.5

9.5

9.2

9.2

9.0

8.7

8.6

8.5

8.2

7.6

7.5

7.3

7.0

6.8

6.7

5.8

5.6

5.6

5.4

5.3. BTJ

6.2

6.4

6.4

6.4

6.5

6.7

229.4

7.40

455

Sept.

7.2

6.4

 6.2

6.2

6.2

6.1

5.9

5.8

5.3

5.3

5.3

5.2

BTT

5.3

5.4

5.5

6.4

i±i

7.6

7.0

6.6

6.3

6.2

5.9

5.7

»5.6

5.6

5.6

5.7

5 9

182.0

6.07

361

Calendar year 1956; Max 1,600 Min 6.8 Mean 128 Ac-ft 93,030

Water year 1956-57: Max 1,660 Mln 5.2 Mean 59.7 Ac-ft 43,210

Peak discharge (base, 700 cfs). Hay 19 (2:30 a.m.) 5,790 efs (7.46 ft). 

* Discharge measurement made on this day.
TULARE LAKE BASIN 251

Kaweah River near Three Rivers, Calif.

Location. Lat 36°24', long 118°57', in SW^ sec. 33, T. 17 S., R. 28 E., on left bank

2.5 miles downstream from South Pork and 3 miles southwest of Three Rivers Post Office.

Drainage area. 520 sq mi.

Records available. April 1903 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 611.1 ft above mean sea level (riverprofile survey). Prior to July 1, 1929, staff gage and July 1, 1929, to Jan. 31, 1936, 

water-stage recorder, at site 2 miles upstream at different datum. Feb. 1, 1936, 

to Aug. 24, 1939, water-stage recorder at present site at datum 2.68 ft higher and 

Aug. 25, 1939, to July 9, 1951, at datum 1.68 ft higher.

Average discharge.--54 years, 568 cfs (411,200 acre-ft per year).

Extremes.--Maximum discharge during year, 15,300 cfs May 19 (gage height, 11.06 ft), from 

rating curve extended above 4,800 cfs on basis of slope-area determination at gage 

height 22.24 ft; minimum, 40 cfs Sept. 7.

1903-57: Maximum discharge, 80,700 cfs Dec. 23, 1955,(gage height, 22.24 ft); from 

rating curve extended above 3,500 cfs on basis of slope-area determination of peak 

flow; minimum, 8.5 cfs Sept. 19, 1934.

Remarks. Records good. Diversions for irrigation of about 460 acres above station. 

Power is developed on Middle and East Porks. Records of chemical analyses for the 

water year 1957 are given in WSP 1523.

Revisions (water years). WSP 881: 1904-9 (yearly summaries only). WSP 1121: 1918-21.

Rating tables, water year 1956-57 (gage height. In feet, and discharge, 

In cubic feet per second)

Oct. 1 to June 12 June 13 to Sept. 30

2.6 

2.8 

3.0 

3.2 

3.5 

4.0

41

72

115

172

290

555

 5.0 

6.0 

7.0 

8.0 

9.0

1,220

2,180

3,650

5,520

8,100

2.5 

2.7 

3.0 

3.5 

4.0 

5.0 

6.0

36

65

130

320

590

1,330

2,330

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

49

5T

52

67

104

92

82

82

76

72

70

76

78

74

70

*67

62

64

64

62

58

55

60

67

74

72

69

67

69 

72

97

2,174

70.1

4,310

Nov.

99 *80~

86

82

82

86

82

82

80

78

74

70

70

76

70

67

65

65

62

60

58

60

57

57

55

54

51

49

54 

54

2,065

68.8

4,100

 

Dec.

54

54

*54

54

69

~84 115

72

70

78

78

82

88

88

82

78

76

72

70

67

67

62

64

67

64

64

62

60

60 

58

*60

2,173

70.1

4,310

Jan.

60

60

58

60

62

62

62

62

57

55_

62

*65

540 2~50

142

115

104

97

92

128

145

118

113

101

101

137

106

110

99

97

*97

3,417

110

6,780

Feb.

106

110

108

108

99

106

*118

328

365

226

330

370

418

355

300

290

286

258

*241

222

199

189

*321

350

741

500

396

370

-

7,810

279

15,490

Calendar year 1956 : Max 7,580 Mln 49

Mar.

*572

494

434

375

355

385

390

396

434

462

*401

370

340

315

295

380

330

310

295

281

276

268

254

245

254

281

300

315

315

*310

320

10,752

347

21,330

Apr.

330

305

315

355

450

511

484

489

472

506

528

506

516

594

522

472

484

616

500

538

538

*484

445

472

572

599

670

748

804

15,568

519

30,880

Mean 752

May

804

*825

860

*979

1,060

*1,180

1,130

1,040

867

804

766

712

688

712

682

*730

766

2,660

*6,840

2,330

*1,930

1,640

1,470

1,260

1,240

1,420

1,680

1,730

*1,590

1,580

1,930

43,895

1,416

87,060

June

*2,350

2,620

2.880

2,850

2,690

2,510

2,460

*2,220

1,880

1,590

1,420

1,610

1,980

1,750

1,460

1,260

1,350

*1,400

1,430

1,390

1,260

1,140

1,130

1,100

1,100

1,060

944

892

801

674

49,201

1,640

97,590

July

*590

506

482

460

425

380

360

330

*330

302

280

263

243

227

219

203

192

181

174

164

157

145

142

133

128

122

120

112

T' Ag

8,122

262

16,110

Aug.

*103 ~99

95

91

89

89

87

87

83

77

73

71

67

65

63

62

60

57

57

54

52

52

55

54

52

51

49

49

49

51

52

2,095

67.6

4,160

Sept.

52

51

*48

45

44

42

42

44

42

42

44

45

4,5

45

44

44

49

93

73

63

59

54

49

46

48

*46

45

45

46

48

1,483

49.4

2,940

Ac-ft 545,600

Water year 1956-57 : Max 6,840 Min 42 Mean 408 Ac-ft 295,100

Peak discharge (base. 2,200 cfs).--May 19 (3 a.m.) 15,300 of 

5,870 cfs (7.15 ft); June 15 (1 a.m.) 2,260 cfs (6.07 ft).

(11.06 ft); June 3 (10 p.m.)

Discharge measurement made on this day.
252 TULARE LAKE BASIN

South Fork Kings River near Cedar Grove, Calif.

Location. Lat 36°48'25", long 118°44 I 55", in Nw£ sec. 8, T. 13 S., R. 30 E., on right 

bank 0.3 mile downstream from Grizzly Creek and 4.5 miles west of Cedar Grove.

Drainage area.--409 sq mi.

Records available. November 1950 to September 1957 (discontinued).

Gage.--Water-stage recorder. Datum of gage is 4,157.7 ft (from river-profile survey).

Average discharge. 6 years (1951-57), 656 cfs (474,900 acre-ft per year).

Extremes. Maximum discharge during year, 7,220 cfs June 4 or 5 (gage height, 12.31 ft, 

from recorded range in stage), from rating curve extended above 3,200 cfs as explained 

below; minimum not determined.

1950-57: Maximum discharge, 13,900 cfs Dec. 23, 1955 (gage height, 16.30 ft), 

from rating curve extended above 3,200 cfs on basis of slope-area determination of 

peak flow; minimum, 39 cfs Jan. 14, 1954.

Remarks. Records fair except those for periods of ice effect or doubtful or no gageheight record, which are poor. No regulation or diversion above station.

Rating table, water year 1956-57, except periods of loe effect (gage 

height, In feet, and discharge, In cubic feet per second)

6.2

6.5 

7.0 

7.5

66

103

175

285

8.0 

8.5 

9.0

505

840

1,300

9.5

10.0

11.0

1,920

2,720

4,660

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

125

125

150 

180

210

220

215

210

205

200

190

185

180

175

170

160

155

150

140

135

135

130

135

140

145

150

145

140

135

135

*130

5,000

161

9,920

Nov.

150

155

155 

155

155

150

150

150

150

145

145

140

135

130

130

129

130

127

116

115

120

117

116

113

108

111

112

112

110

i2§.

3,939

131

7,810

Dec.

104

103

104 

111

113

108

105

100

105

120

133

127

124

123

119

117

113

113

110

110

110

110

110

108

105

*102

100

100

100

99

99

3,405

110

6,750

Jan.

96

93

86 

88

90

90

90

88

85

90

100

103

170

124

116

116

112

107

107

115

116

113

129

120

124

116

110

105

102

105

110

3,316

107

6,580

Feb.

115

115

115 

110

110

105

130

153

147

158

194

205

21?

203

194

197

199

197

190

187

180

177

203

201

240

235

228

224

4,924

176

9,770

Calendar year 1956: Max 4,100 Mln 99

Mar.

228

*222

214

210

216

230

238

248

24?

228

226

222

210

205

203

205

196

196

192

185

187

180

178

182

189

192

199

205

208

208

220

6,464

209

12,820

Apr.

230

220

226

261

310

302

324

332

328

369

410

425

470

560

455

405

405

382

360

352

336

328

336

369

405

415

455

572

669

5gQ

11,601

387

23,010

May

704

816

938 

,200

,430

,740

,650

,400

,250

,140

974

872

832

776

732

800

900

,000

,300

,500

,300

,200

,050

950

,200

,600

,700

,750

,650

,000

2^,600

40,954

1,321

81,230

JUne

3,300

3,600

5.900 

3,800

3,600

3,500

3,300

3,000

2,500

2,000

*1,900

2,300

2,580

2,300

1,990

1,750

1,980

2,160

2,240

2,220

2,020

1,930

1,980

2,020

2,090

2,090

1,990

1,860

1,740

1.520

73,160

2,439

145,100

July

1,560

1,160

1,050 

1,020

990

950

910

890

850

820

790

750

720

700

670

620

*580

560

516

470

430

582

552

520

506

296

279

275

270

"zTS 267

19,824

639

39,320

Aug.

264 252"

245 

242

235

224

210

201

192

184

177

172

165

164

164

159

158

154

153

152

150

147

146

147

144

140

154

127

125

120

117

5,362

175

10,640

Sept.

112

108

104 

102

99

98

94

91

91

95

91

94

94

91

89

88

95

110

106

99

94

89

84

80

79

77

74

72

76

94

2,768

92.5

5,490

Mean 818 Ac-ft 593,600

Water year 1956-57: Max 3,900 Mln 72 Mean 495 Ac-ft 358,400

Peak discharge (base, 5,000 cfs). May 19 (time and discharge unknown); June 4 or 5 (time unknown) 

7.220 cfs (12.51 ft).________________________________________________________________ 

* Discharge measurement made on this day. 

Note. Doubtful or no gage-height record Oct. 1 to Nov. 14, Dec. 7-9, 20-25, 25-29, May 16 to

June 11, July 5-17; discharge estimated on basis of fragmentary gage-height record, recorded range

In stage, weather records, and records for Kings River near Hume. Stage-discharge relation .affected

by Ice Jan. 6-11, 20, Jan. 27 to Feb. 7.
TULARE LAKE BASIN 253

Kings River near Hume , Calif.

Location. Lat 36°50'50", long 118°53'50", in NE^SW^ sec . 35 , T. 12 S. , R. 28 E. , on right

bank 0 . 9 mile downstream from Ten Mile Creek, 1.2 miles downstream from confluence of

South and Middle Porks, and 3.8 miles north of Hume. 

Drainage area. 838 sq mi.

Records available . --August 1921 to December 1936, October 1951 to September 1957. 

Gage . --Water-stage recorder. Datum of gage is 2,142.7 ft above mean sea level (from riverprofile survey). Prior to Dec. 31, 1936, water-stage recorder at same site at datum

about 4.5 ft higher. 

Average discharge . --18 years (1921-22, 1923-24, 1926-36, 1951-57), 1,158 cfs (838,400

acre-ft per year) . 

Extremes . --Maximum discharge during year, 10,200 cfs June 4 (gage height, 11.64 ft) ,

from rating curve extended above 7,200 cfs by logarithmic plotting; minimum, 135 cfs

Jan . 9 , 10 .

1921-36, 1951-57: Maximum discharge, 38,000 cfs Dec. 23, 1955 (gage height,

15.53 ft), from rating curve extended above 7,200 cfs by logarithmic plotting; minimum,

63 cfs Sept. 89 to Oct. 4, 1924. 

Remarks . --Records good. No regulation or diversion above station. Hume Lake which formerly was emptied at low-water season now is kept full. 

Revisions (water years) .--WSP 766: Drainage area. Revised figures of discharge, in cubic

feet per second, for the wate

given herewith:

. , 

ter year 1925, superseding those published in WSP 611, are

Date

1925

July 19

20

21

22

23

24

25

26

27

28

29

30

31

Aug. 1

Discharge

1,620

2,140

1,900

1,660

1,370

1,170

1,030

944

866

812

794

778

789

878

Date

1925-Con.

Aug. 2

3

4

5

6

7

8

9

10

11

12

13

14

15

Discharge

938

1,010

1,190

1,030

902

800

728

718

830

1,320

1,310

1,060

890

784

Date

1925-Con.

Aug. 16

17

18

19

20

21

22

23

24

25

26

27

28

29

Discharge

701

635

580

535

500

460

430

410

390

366

344

335

326

317

Date

1925-Con.

Aug. 30

31

Sept. 1

2

3

4

5

6

7

8

9

10

11

12

Discharge

299

294

262

270

262

270

290

274

266

262

254

242

230

222

Date

1925-Con.

Sept. 13

14

15

16

17

18

19

20

21

22

23

24-30

Discharge

210

210

200

192

189

186

178

178

178

178

175

a!60

a Average for period Indicated.

Month

Water year 1924-25. ..........................

Cf s-days

383,685

Maximum

_

1,320

Minimum

778

294

-

Mean

1,660

687

1,050

Runoff In 

acre-feet

102 , 000

42,300

12,500

761,000

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Ac-ft

Oct.

303

299

315

362

412

412

402

407

394

362

335

331

315

299

283

275

263

259

255

252

248

241

244

241

267

263

252

248

238 

 255

287

9,319

301

18,480

Nov.

263

275

FTS

271

267

267

263

259

259

255

248

244

241

238

220

220

224

220

208

196

202

199

196

193

184

181

187

184

178

TT5

6,795

226

13,480

Dec.

175

172

172

175

196

199

184

160

1ST

208

224

227

227

220

208

205

199

196

190

181

178

163

175

181

169

172

*169

166

169 

166

166

5,770

186

11,440

Jan.

166

163

160

160

160

155

155

155

148

142

155

175

594

^59

227

224

214

208

211

234

230

211

241

224

224

234

205

205

199

202

214

6,454

208

12,800

Feb.

230

227

224

214

2T4

220

230

402

331

339

530

572

596

425

470

497

497

480

450

425

402

384

628

593

952

730

656

638

-

12,536

448

24,860

Calendar year 1956: Max 8,150 Mln 160

Mar.

680

*638

572

542

560

608

632

650

662

608

584

578

530

508

502

560

492

486

470

450

460

435

416

420

445

465

492

519

542 

548

584

16,638

537

33,000

Apr.

614

572 '550

686

827

950

926

958

950

1,050

1,120

1,120

1,180

1,340

1,170

1,060

1,070

1,080

998

974

896

868

882

990

1,060

1,080

»1,160

1,340

1,550 

1,420

30,481

1,016

60,460

May

1,570

1,750

1,970

2,380

2,800

3,160

3,050

2,590

2,310

2,110

1,870

1,690

1,640

1,640

1,540

1,630

1,970

3,800

4,460

2,630

2,350

2,220

2,020

1,860

2,060

2,660

3,370

3,650

3,240 

3,240

4,370

77,600

2,503

153,900

June

5,900

7,120

7,780

8,200

8,500

7,800

7,500

7,400

6,520

4,580

»3,890

»4,780

5,840

5,240

4,140

3,640

4,090

4,540

5,000

5,020

4,540

4,180

4,340

4,560

4,900

5,040

4,680

4,360

4,030 

5,350

161,260

5,375

519,900

July

2.900

2,500

2,500

2,320

2,340

2,230

1,950

1,860

1,830

1,680

1,600

1,550

1,480

1,320

1,240

1,220

1,190

1,150

1,080

983

896

824

760

722

685

678

652

C59

646 

640

640

42,525

1,372

84,550

Aug.

626 '588"

562

555

558

511

490

450

428

410

387

569

352

544

348

340

532

352

328

324

316

313

313

306

soe

299

285

275

263 

256

250

11,796

Sept.

238

229

223

217

215

212

203

201

201

201

203

205

205

201

198

195

212

229

217

209

198

187

182

174

172

169

167

164

164 

190

5,977

381 199

23,400 11,860

Mean 1,794 Ac-ft 1,302,000

Water year 1956-57: Max 8,300 Mln 142 Mean 1,061 Ac-ft 767,900

Peak discharge (base, 5,500 cfs). --May 6 (11 

(10.60 ft); May 28 (1:30 a 

June 15 (12 p.m.) 6,750 c 

* Discharge measurement made on this day.

cfs). --May 6 (11 p.m.) 5,560 cfs (8.67 ft); May 19 (1:50 p. 

a.m.) 4,210 cfs (9.14 ft); June 4 (12 p.m.) 10,200 cfs (11.6 

fs (10.38 ft); June 26 (1 a.m.) 6.140 cfs (10.12 ft).

.) 7,650 cfs 

64 ft);
254 TULARE LAKE BASIN

Kings River above North Pork, Calif.

Location. Lat 36°51'45", long 119°07'25", in ffi£ sec. 27, T. 12 S., R. 26 E. , on left 

bank at Rogers Crossing, 0.9 mile upstream from North Pork and 2.9 miles south of 

Balch Camp.

Drainage area.--956 sq mi.

Records available. March 1927 to December 1928, October 1931 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 1,003.5 ft above mean sea level (from 

river-profile survey). March 1927 to December 1928 at site 0.5 mile downstream at 

different datum.

Average discharge. 27 years, 1,420 cfs (1,028,000 acre-ft per year).

Extremes. Maximum discharge during year, 11,600 cfs June 5 (gage height, 7.05 ft); minimum, 135 cfs Jan. 10.

1927-28, 1931-57: Maximum discharge, 59,100 cfs Dec. 23, 1955 (gage height, 

16.26 ft), from rating curve extended above 8,000 cfs on basis of slope-area determiation of peak flow; minimum, 79 cfs Oct. 13, 1934.

Remarks. Records excellent except those for period of no gage-height record, which are 

good. No regulation or diversion above station.

Revisions (water years).--WSP 1395: 1938(M), 1951(M).

Rating tables, water year 1956-57 '(gage height, in feet, and discharge, 

In cubic feet per second)

Oct. 1 to May 19 May 19 to Sept. 30

1.1 

1.5 

2.0

131

195

268

400

620

2.5 

3.0 

4.0 

5.0 

6.0

920

1,330

2,560

4,660

7,800

0.7 

1.0 

1.5 

2.0 

2.5

142

200

347

575

3.0 

4".0 

5.0 

6.0 

7.0

1,270

2,470

4,380

7,440

11,400

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Totaj

Mean

Ac-ft

Oct.

301 

304

311

341

424

432

41?

412

408

390

365

354

340

327

314

301

289

286

277

271

265

260

265

263

*268

283

283

277

271 

265

327

9,881

319

19,600

Nov.

317 3"OT

301

298

292

289

289

286

283

280

277

271

265

260

255

245

245

245

*237

211

209

211

209

206

202

200

200

200

190 

186

7,460

249

14,800

Dec.

181 

179

177

179

209

240

20T

Ifll

1B6

216

232

237

*235

235

223

218

211

206

200

190

186

174

177

*184

179

179

177

177

177

174

172

6,095

197

12,090

Jan.

170 

168

164

*164

164

164

157

162

153

145

153

172

717

324

250

237

228

218

213

255

255

230

242

232

230

250

223

213

*204

209

216

6,880

222

13,650

Feb.

235 

240

235

223

2T5

228

235

448

408

354

558

*591

630

558

489

498

502

480

460

436

408

393

742

681

1,110

794

695

665

-

13,521

483

26,820

Mar.

744 eTsT

630

582

591

640

660

670

695

655

615

601

563

539

516

620

544

525

502

480

480

456

444

444

456

472

494

516

544

544

553

17,460

563

34,630

Apr.

591 

*558 563"

635

780

920

913

944

913

1,020

1,110

1,120

1,150

1,350

1,180

1,070

1,120

1,170

1,050

1,050

936

899

899

*1,020

1,110

1,130

1,180

1,360

^,600

1,440

30,781

1,026

61,050

May

1,600 

*1,750

2,010

2,450

2,950

3,380

*3,360

2,840

2,500

2,280

2,010

1,780

1,730

1,730

1,610

1,680

*1,990

3,880

6,280

37255

2,890

2,700

2,410

2,140

*2,320

2,960

3,680

4,030

3,620

3,540

4,500

85,880

2,770

170,300

June

6,060 

7,520

8,120

*9,000

9,080

8,350

7,740

7,600

6,700

5,000

4,200

5,000

6,000

*5,300

4,300

3,900

4,200

4,700

5,100

5,050

4,670

4,310

4,430

4,600

4,880

5,080

4,670

4,480

4,240

3,640

167,920

5,597

333,100

July

3,210 

2 , 780

2,470

2,470

2,480

* ,390

,070

,940

,880

,790

,670

,580

,500

,350

,240

,220

,180

,150

,080

992

915

848

*782

738

702

690

660

660

660

ff! D4<-

44,381

1,432

88,030

Aug.

630 

602

575

558

548

510

500

461

434

409

397

377

362

351

351

347

333

330

326

319

316

309

306

302

302

296

283

271

*259

250

245

11,859

383

23,520

Sept.

232 

219

212

205

202

198

191

189

187

187

191

191

193

191

189

185

198

227

217

205

191

180

172

167

163

161

*159

156

TBT

172

5,687

190

11,280

Calendar year 1956 : Max 8,950 Win 172 Mean 1,988 Ac-ft 1,443,000

Water year 1956-57 : Max 9,080 Mln 143 Mean 1,117 Ac-ft 808,900

Peak discharge (base, 6,300 cfs).-- May 19 (2:30 a.m.) 10,000 cfs (6.61 ft); June 

11,600 cfs (7.05 ft); probably June 14 (time unknown) 8,450 efs (6.26 ft).

5 (2:30 a.m.)

* Discharge measurement made on this day.

Note. No gage-height record June 8-19; discharge estimated on basis of fragmentary gage-height 

record, recorded range In stage, and records for stations near Hume and below North Fork.
TULARE LAKE BASIN 255

North Fork Kings River below Meadow Brook, Calif.

Location. Lat 37°04'53", long 118°51'43", in NEi sec. 12, T. 10 S., R. 28 E., on left 

bank 800 ft downstream from Nichols Canyon, 0.6 mile downstream from Meadow Brook, 

3.9 miles west of Blackcap Mountain, and 23 miles southeast of town of Huntington Lake.

Drainage area.--37.7 sq mi (revised).

Records available . October 1921 to September 1935, October 1956 to September 1957. 

Gage.--Water-stage recorder. Altitude of gage is 8,130 ft (from topographic map). 

Average discharge. 15 years, 61.7 cfs (44,670 acre-ft per year).

Extremes.--Maximum discharge during year, 1,800 cfs June 4 (gage height, 5.18 ft); minimum, 1.4 cfs Sept. 15.

1921-35, 1956-57: Maximum discharge, 1,200 cfs June 3, 1935, June 4, 1957; maximum gage height, 5.18 ft June 4, 1957; minimum discharge recorded, 0.3 cfs 

Sept. 12-14, 1924.

Flood of Dec. 23, 1955, reached a stage of 5.85 ft, from floodmarks (discharge, 

2,000 cfs).

Remarks --Records good except those for periods of ice effect or no gage-height record, 

which are fair. No regulation or diversion.

Cooperation. Water-stage-recorder graph and six discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57, except periods of ice effect (gage height, in feet,

and discharge, in cubic feet per second)

(Shifting-control method used Oct. 4 to Dec. 23,"Jan. 2-12, 14-19, 21-25, 

Feb. 20-22, 25, Mar. 3-9, 12-19)

1.6

1.7

1.8 

2.0

1.4

2.5

4.7

12

32

105

208

4.0 

4.5 

5.0

385

645

1,030

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Tota}

Mean

Ac-ft

Oct.

9

9

*9.5

9.6

12

12

13

16

14

11

12

11

9.2

7.6

6.9

5.9

5.6

5.3

4.7

4.2

3.9

3.6

3.6

5.6

7.6

6.6

5.6

3.6

4.2

5.0 

5.6

242.4

7.82

481

Nov.

8.4

9.2

9.2

9.2

9.2

9.2

9.6

9^

9.6

8.8

8.0

6.6

6.2

3.6

4.7

5.3

5.0

3.4

2.8

3.2

3.2

3.0

2.8

2.5

2.6

2.6

2.8

2.5

2.5

2.4

167.7

5.59

333

Dec.

2.3

2.3

2.6

2.5

2.0

2.8

4.2

5.9

6.6

7.2

8.8

9.2

9^6

8.4

6.6

5.9

5.0

4.4

3.9

3.6

3.0

2.8

3.0

r3.0

133.4

4.30

265

Calendar year 1956: Max -

Jan.

2.6

2.4

2.0

1.8

1.8

1.8

1.8

1.8

1.9

1.9

1.9

2.0

b2.1

2.3

2.4

2.5

2.6

2.8

3.0

b3.4

3.9

4.2

4.2

4.4

4.7

}...

93.2

3.01

185

Feb.

> 4

5

7

10

b!3

blS

blS

bis

b!4

b!4

b!3

13

12

12

b!2

b!2

i§

b!4

b!2

b!3

-

273

9.8

541

Mar,

b!4

b!4

14

13

13

16

23

23

18

b!7

b!7

17

16

15

14

14

14

13

12

12

13

12

13

15

20

23

26

30

30

30

30

551

17.8

1,090

Apr.

35

30

40

50

60

70

70

70

75

85

90

90

90

1OO

85

75

70

65

60

55

50

45

50

60

65

70

80

110

120

110

2,125

70.8

4,210

May

130

155

180

*213

260

294

263

224

201

173

146

131

132

142

132

148

182

277

211

142

142

136

123

127

171

249

321

313

288

305

430

6,341

205

12,580

June

546

645

766

766

724

684

664

609

465

329

353

470

520

416

325

321

365

416

*426

398

365

349

361

369

381

341

309

270

235

186

13,374

446

26,530

July

156

132

116

112

109

96

80

72

68

61

54

50

46

40

37

35

33

30

28

24

22

19

17

16

16

15

16

24

20

*18

17

1,579

50.9

3,130

Aug.

15

14

13

12

12

11

10

9.2

8.0

7.6

6.9

6.2

5.9

5.6

5.3

5.0

4.7

4.7

4.4

4.4

4.2

4.2

4.2

3,9

3.9

3.6

3.6

3.4

3.2

3.2 

3_.0

205.3

6.62

407

Sept.

2.5

2.4

2.3

2.0

*1.9

1.8

1.7

1.7

1.6

1.7

1.6

1.6

1.5

TTs

1.5

1.5

3.7

5.6

3.9

3.0

2.6

2.4

2.3

2.0

1.9

1.8

1.7

1.6

2.3

5.3

68.9

2.30

137

Min - Mean - Ac-ft -

water year 1956-57: Max 766 Min 1.5 Mean 68.9 Ac-ft 49,890

Peak discharge (base, 4OO cfs). May 18 (7 p.m.) 416 cfs (4.07 ft); June 4 (7:30 p.m.) 1,20O cfs 

(5.18 ft)._____________________________ ___ ____ _______________________

* Discharge measurement made on this day.

b Stage-discharge relation affected by ice.

Note.--No gage-height record Oct. 1-3, Dec. 23 to Jan. 1, Jan, 26 to Feb. 12, Mar. 20 to May 3 

(stage-discharge relation affected by ice during part of periods); discharge estimated on basis of 

1 discharge measurement, recorded range in stage, weather records, and records for nearby streams.
256 TULARE LAKE BASIN

Fleming Creek near Blackcap Mountain, Calif.

Location. Lat 37°05'55", long 118°51'40", in SE£ sec. 36, T. 9 S., R. 28 E., on left 

bank 0.9 mile ^pstream from mouth, 4.2 miles west of Blackcap Mountain, and 23 miles 

southeast of town of Huntington Lake.

Drainage area. 15.0 sq mi.

Records available. October 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 8,590 ft (from topographic map).

Extremes.--Maximum discharge during year, 368 cfs June 3 (gage height, 2.62 ft); minimum, 

rf.2 cfs Sept. 9.

Flood of Dec. 23, 1955, reached a stage of 3.5 ft, from floodmarks (discharge, 

800 cfs, from rating curve extended above 160 cfs by logarithmic plotting).

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Cooperation. Water-stage-recorder graph and four discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

0.4 

.5 

.6 1.1

5.6

12

36

1.5 

2.0 

2.5

180

325

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.5

2

*2

1.8

2.2

2.2

2.4

3.1

3.1

3.1

5.0

5.0

4.0

3.5

2.8

2.2

1.8

1.8

1.6

1.4

1.2

1.2

1.4

2.5

2.5

2.4

2.2

2.4

2.4

2 .4

3

77.1

2.49

153

Nov.

4

5

5

5

4.5

4.5

4.5

4.5

4.5

4.0

3.5

3.1

3.1

2.4

2.8

2.8

2.2

1.8

1.6

3.1

2.4

1.4

1 . 6

1.6

1.6

1.6

1.6

1.6

1.6

1.4

88.3

2.94

175

Dec.

1.2

1.2

1.2

1.5

1.5

1.5

2

3

3.5

4

5

5

5

5

4

3.5

3

2.8

2.4

2

1.8

1.7

1.7

1.7

1.6

1.5

1.5

}"

75.8

2.45

150

Calendar year 1956: Max -

Jan.

1.5

1.4

1.2

1.1

> 1

1.1

1.3

) ::

1.6

1.8 1"

r44.8

1.45

89

Feb.

> 2

3

3.5 i ;"

1 6

5

5

5

5

1 5

-

lll.O

3.96

220

Mln -

Mar.

5

7

8

9.0

7

7

7

6.5

6.2

5.6

5.4

5.4

5.2

4.8

4.5

4.5

4.5

4.5

4.5

6

7

8.5

9.5

11

11

11

11

206.6

6.66

410

Apr.

14

Te

18

22

26

30

30

30

"I 35

> 40

f

J

35

30

25

22

20

20

20

22

25

30

35

40

50

50

50

935

31.2

1,850

May

60

70

*88

106

126

148

127

96

86

72

54

46

43

44

44

53

70

96

69

49

46

43

36

41

63

104

135

137

120

135

185

2,592

83.6

5,140

June

239

275

294

300

294

278

278

266

215

159

ISO

212

225

195

168

173

178

202

*210

196

185

180

182

182

180

171

150

129

104

80_

6,079

203

12,060

July

61

46

39

37

35

33

30

27

26

24

22

22

19

17

16

15

13

12

11

9.7

8.3

7.6

6.9

6.2

5.6

5.0

5.0

6.2

5.6

5.0

*5.0

581.1

18.7

1,150

Aug.

4.0

375

3.1

2.8

2.4

2.4

2.2

1.8

1.6

1.4

1.2

1.2

1.1

1.1

1.1

1.1

.9

.9

.8

.8

.8

.8

.8

.7

.7

.7

.6

.6

.5

.5

.5

42.6

1.37

84

Sept.

0.4

.4

.4

.4

*.4

.3

.3

.3

.2

.3

.3

.3

.3

.3

.3

.3

.6

.9

.9

.8

.7

.6

.5

.5

.5

.4

.4

.4

.5

.7

13.6

0.45

27

Mean - Ac-ft -

Water year 1956-57: Max 30O Mln 0.2 Mean 29.7 Ac-ft 21,510

Peak discharge (base, 110 cfs). May 6 (6 p.m.) 182 

(1.69 ft); June 3 (7 p.m.) 568 cfs (2..62 ft).

= fs (2.01 ft); May 18 (1 p.m.) 114 cfs

Discharge measurement made on this day. 

Note. No gage-height record Oct. 1-3, Dec. 28 to Jan. 2 (stage-discharge relation affected by Ice 

during period), Mar. 23 to May 2; discharge estimated on basis of 1 discharge measurement, weather 

records, and records for North Fork Kings River below Meadow Brook. Stage-discharge relation 

affected by Ice Oct. 24, 25, Oct. 30 to Nov. 5, Dec. 2 to Feb. 17, Feb. 23 to Mar. 7, Mar. 9-12, 

15-18.
TULARE LAKE BASIN 257

Post Corral Creek near Blackcap Mountain, Calif.

Location.--Lat 37°06'25", long 118°53'45", in NW£ sec. 35, T. 9 S., R. 28 E., on right 

bank 1.6 miles upstream from mouth, 6.2 miles west of Blackcap Mountain, and 20 miles 

southeast of town of Huntington Lake.

Drainage area. 27.9 sq mi.

Records available. October 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 8,100 ft (from topographic map).

Extremes.--Maximum discharge during year, 1,270 cfs June 4 (gage height, 4.57 ft), from 

rating curve extended above 390 cfs by logarithmic plotting; minimum, 0.3 cfs 

Sept. 14-17.

Flood of Dec. 23, 1955, reached a stage of 4.7 ft, from floodmarks (discharge, 

1,400 cfs , from rating curve extended above 390 cfs by logarithmic plotting).

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair.

Cooperation. Water-stage-recorder graph and four discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57, except periods of Ice effect ( 

height, In feet, and discharge, In cubic feet per second)

0.9

1.0

1.1

0.3 

1.4 

5.6

1.5 

2.0 

3.5

66

146

3.0 

3.5

290

510

810

Discharge ubic feet per second, water year October 1956 to.September 1957

Day

1 

3

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

30

21 

22 

23

34

25

26

27

38

29

30

31

Total

Mean

Ac-ft

Gale

Oct.

3.5 

3

3

3

3.6

2.6

2.3

4.1

3.1

2.6

3.6

5.1

3.6

3.6

3.2

3.0

2.0

1.6

1.6

1.6

1 .4

1.4 

1.6

2.0

3.0

3.5

3.5

3.0

2.6

3.6

5.6

87.8

2.83

174

Nov.

6.6 

"] 6.6

1

) ^

f

J

6

6

6

5

5

4

3.6

3.1

3.1

2.6

2.2

2.2

2.0 

2.0 

2.0

.4

.4

.4

.4

.2

.1

.0

118.9

3.96

236

Dec.

1

> 1

J

1.5

3

3.5 \:4.5

4

3.5

3

2.5

2

} Z

\ ^ 5

) 1.0

77.0

3.48

153

idar year 1956: Max -

Jan.

) 0.5

"

> .5

~l

/ 1.0

J

1.5

! 3.0

3

4

45.5

1.47

90

Feb.

> 4

6

9 i ::

ji " ) 13

J 14

-1

/ 15

J

-

280

10.0

555

Mar.

}'i : j 18

I :

» 

I 17

20

23

26

30

582

18.8

1,150

Apr.

30 

35

45

55

60

60

65

70

1

1

> 80

J

1

> 90

J

80

70

60

50

50

> 40

50

60

70

80

90

100

110

2,000

66.7

3,970

May

110 

*150

178

235

386

333

297

325

19O

173

131

109

104

101

104

140

188

280

185

121

116 

118

104

116

175

280

333

325

383

314

495

6,288

203

12,470

June

632 

704

780

777

708

588

586

496

300

231

299

353

363

340

201

214

237

251

248

 322

193 

178 

174

176

160

133

123

88

69

54

9,776

3S6

19,390

July

46

40

35

31

27

33

21

18

15

14

11

9.8

8.7

7.2

6.6

5.1

4.6

4.1

3.6

3.1

3.1 

2.6 

3.2

2.2

2.3

2.0

2.0

2.0

1.6

 1.6

1.6

356.9

11.5

708

Aug.

.4 

.4

.1

.1

.1

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.7

.7

.7

.6

.6

.6 

.6 

.6

.6

.6

.6

.6

.6

.6

.6

.6

24.5

0.79

49

Sept.

0.6 

.6

.4

 .4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.7

.9

Ts

.7

.7 

.6 

.6

.4

.4

.4

.4

.4

.7

.8

15.0

0.50

30

Min - Mean - Ac-ft -

Water year 1956-57: Max 780 Mln 0.3 Mean 53.8 Ac-ft 38,980

Peak discharge (base, 400 cfs) .--May 6 (5 p.m.) 485 cfs (3.45 ft); May 18 (6 p.m.) 430 cfs (3.32 ft);

June 4 (6 p.m.) 1.370 cfs (4.57 ft).____________________________________________________

 Discharge measurement made on this day.

Note. No gage-height record Oct. 1-4, Dec. 21 to Jan. 2, Mar. 18 to May 2 (stage-discharge relation affected by Ice during part of periods); discharge estimated on basis of weather records, and 

records for North Fork Kings River below Meadow Brook. Stage-discharge relation affected by ice 

Oct. 25-28, Nov. 3-14, Nov. 36 to Dec. 20, Jan. 3 to Mar. 17.
258 TULARE LAKE BASIN

Helms Creek at Sand Meadows, Calif.

Location. Lat 37°05'50", long 118°58'20", in SE^- sec. 36, T. 9 S., R. 27 E., on right 

bank at lower end of Sand Meadows, 0.8 mile downstream from Dusy Creek and 4.1 miles 

upstream from mouth.

Drainage area. 34.7 sq mi.

Records available.--October 1922 to September 1935, October 1955 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 8,030 ft (from topographic map).

Average discharge.--7 years (1923-25, 1926-27, 1928-30, 1955-57), 58.1 cfs (42,060 acreft per year).

Extremes. Maximum discharge during year not determined, occurred June 3; minimum 

recorded, 1.2 cfs Dec. 2.

1922-35, 1955-57: Maximum discharge, 7,600 cfs Dec. 23, 1955 (gage height, 

10.5 ft, from floodmarks), from rating curve extended above 880 cfs by logarithmic 

plotting; minimum, 1.1 cfs Aug. 1, 27, 1924, Oct. 30, 1932.

Note.--The maximum discharge for the water year 1956 previously published as "not 

determined" has been determined as 7,600 cfs Dec. 23, 1955 (gage height, 10.5 ft, 

from floodmarks), from rating curve extended above 880 cfs by logarithmic plotting.

Remarks. Records good except those for periods of no gage-height record or ice effect, 

which are fair. No regulation or diversion.

Cooperation.--Water-stage recorder graph and four discharge measurements furnished by 

Pacific Gas and Electric Co. in connection with a Federal Power Commission project.

Rating table, 

height,

1.9

2.0

2.1

2.2

nater year 1956-57, except pe 

In feet, and discharge, in ct

2.6 2.4 21

4.6 2.7 39

6.9 3.0 69

9.5 3.5 161

riods of ice effect (gage 

bic feet per second)

4.0 

4.5 

5.0 

6.0

315

520

780

1,380

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

4.4

4.2

4.6

5.7

*6.7

4.8

5.0

5.3

4.8

4.6

5.3

5.0

4.8

4.6

4.4

4.4

4.2

4.2

4.2

4.2

4.2

4.2

4.6

5.3

5.9

5.9

5.7

5.3

5.3

5.3

6.7

153.8

4.96

305

Nov.

6.2

5.7

5.7

5.9

6.4

6.4

6.4

6.7

6.9

6.7

6.4

5.9

5.7

*5.3

4.6

5.0

5.3

4.6

3.9

4.4

4.6

4.2

4.2

4.2

3.9

4.2

4.4

4.4

4.4

4.4

157.0

5.23

311

Dec.

4.2

3.9

4.2

4

4

4

5

7.5

9.8

12

14

W

9.5

8.5

8.2

8

8

7

7

6

5

4.5

4.5

4.5

> 4

191.3

6.17

379

Jan.

4

4

> 3

'

T

> 3.5

1

 \

i *

J

4.5

5

6

6.5

6.5

"

145.0

4.68

288

Feb.

6.5

> 6

8

11

16

20

24

24

24

22

22

20

20

20

18

15

20

22

22

22

22

-

426.5

15.2

846

Mar.

22

22

22

22

21

22

30

30

28

28

28

26

25

25

25

25

25

25

22

21

22

21

20

21

29

37

45

50

50

30

55_

874

28.2

1,730

Apr.

55

60

70

80

100

100

110

110

120

114

116

116

128

133

118

110

81

84

84

62

57

54

56

68

85

96

133

187

187

169

3,043

101

6,040

May

221

256

304

343

374

418

410

322

262

233

193

166

182

179

169

209

287

511

357

201

193

182

169

177

236

350

500

500

450

500

500

9,354

302

18,550

June

600

700

800

600

500

4OO

3OO

250

220

200

250

300

350

250

200

160

140

*124

114

98

88

82

77

72

65

57

50

44

38

30

7,159

239

14,200

July.

26

22

21

19

17

16

15

14

12

12

10

10

9.2

8.7

8.5

7.7

7.4

6.9

6.7

6.2

6.2

5.9

5.9

5.9

5.7

5.3

5.3

5.3

5.0

*4.8

5.0

315.6

10.2

626

Aug.

4.8

4.4

4.4

4.4

4.4

4.4

4.4

4.2

3.9

3.9

3.9

3.7

3.7

3.7

3.7

3.5

3.3

3.3

3.3

3.3

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.3

3.3

3.3

113.3

3.65

225

Sept.

3.3

3.1

3.1

*2.9

2.7

2.7

2.7

2.7

2.9

3.1

E.9

E.7

2.7

2.7

2.7

2.7

4.6

4.8

3.7

3.3

3.3

3.1

2.9

2.9

2.9

2.9

2.9

2.9

3.3

3.9

93.0

3.10

184

Calendar year 1956: Max 860 Min - Mean 102 Ac-ft 74,180

Water year 1956-57: Max 800 Min - Mean 60.3 Ac-ft 43,680

Peak discharge (base, 250 cfs).--May 6 (6:30 p.m.) 620 cfs (4.70 ft); May 18 (7 p.m.) 884 cfs 

^ (5.19 ft); June 3 (time and discharge unknown).

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 4-8, 16, Dec. 18 to Jan. 9, Feb. 12 to 

Mar. 3, Mar. 7-15, Mar. 27 to Apr. 9. No gage-height record Jan. 10 to Feb. 11 (stage-discharge 

relation affected by ice during most of period), May 26 to June 17; discharge estimated on basis 

weather records and records for North Fork Kings River below Meadow Brook.
TULARE LAKE BASIN 259

North Fork Kings River near Cliff Camp, Calif.

Location. Lat 37°00' , long 118°59', in NW£ sec. 12 , T. 11 S. , R. 27 E., on right bank at 

Cliff Camp Bridge, 1 mile northwest of Cliff Camp and 2.3 miles downstream from Woodchuck Creek.

Drainage area. 174 sq mi.

Records available. August 1921 to September 1957.

Gage. Water-stage recorder. Datum of gage is 6,143.95 ft above mean sea level, adjustment of 1912 (levels by San Joaquin Light and Power Corp.). Prior to Nov. 24, 1922, 

at site 1 mile upstream at different datum.

Average discharge.--33 years (1921-32, 1933-35, 1937-57), 356 cfs (257,700 acre-ft per 

year).

Extremes. Maximum discharge during year, 5,270 cfs May 18 (gage height, 12.10 ft); minimum daily, 1.9 cfs Sept. 9.

1921-57: Maximum discharge, 14,000 cfs Dec. 11, 1937 (gage height, 18.0 ft, from 

floodmarks), from rating curve extended above 4,200 cfs on basis of velocity-area 

studies and by logarithmic plotting; minimum daily, 1.3 cfs Sept. 9, 10, 1924.

Remarks. Records good. Temporary storage and regulation above station since August 

1955 when construction began on Wishon Dam. No diversion above station.

Cooperation.--Water-stage recorder graph and eight discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

2.1 1.7 3.2 29 6.0 625

2.3 2.5 3.6 68 7.0 1,020

2.5 4.5 4.0 124 8.0 1,490

2.7 7.8 4.5 216 9.O 2,170

2.9 12 5.0 330 11.0 4,O60

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

13

14

12

13

25

26

21

28

30

26

26

29

27

22

22

20

18

17

15

15

12

13

15

16

21

24

23

19

20

19

31

632

20.4

1,250

Nov.

28

34

33

31

34

34

35

37

38

35

33

31

26

*24

20

19

20

18

18

15

15

14

15

13

10

13

13

12

12

12

692

23.1

1,370

Dec.

10

9.4

13

11

14

17

21

18

22

23

26

32

35

33

28

25

23

21

19

16

15

14

15

14

14

13

13

13

13

13

14

567.4

18.3

1,130

Jan.

13

12

12

11

11

9.9

11

*11

11

12

12

20

104

37

28

25

23

23

22

23

24

35

35

25

30

35

22

35

25

35

25

756.9

24.4

1,500

Feb.

35

35

35

30

35

32

30

33

35

40

101

148

172

134

129

157

143

137

121

101

88

83

119

130

254

168

159

157

-

2,821

101

5,600

Calendar year 1956; Max 4.21O Mln 9.4

Mar.

161

145

121

111

157

180

196

182

172

140

140

147

121

108

107

116

104

98

94

95

111

91

87

102

130

148

*180

192

200

182

251

4,349

140

8,630

Apr.

227

200

253

358

459

489

453

456

486

572

608

576

614

672

546

498

444

411

388

342

312

305

328

411

450

459

546

752

800

7TT

14,126

471

28,020

May

875

1,030

1,240

1,460

1,700

*1,900

'1,770

1,360

1,120

1,010

816

688

704

792

780

899

1,130

2,670

2,240

1,070

1,040

954

800

764

1,040

1,510

1,760

1,710

1,510

1,650

2,220

40,212

1,297

79,760

June

2,720

2,990

5,260

3,230

3,080

2,740

2,650

2,400

1,860

1,290

1,440

1,710

1,780

1,430

1,100

1,090

1,180

1,280

1,260

1,160

*989

922

919

919

904

819

696

590

525

414

47,347

1,578

93,910

July

342

289

256

238

216

198

174

157

116

122

111

102

82

87

74

62

62

60

52

49

45

28

35

34

33

31

28

35

*39

35

29

3,199

103

6,550

Aug.

22

18

25

26

22

25

18

18

17

18

11

15

17

12

11

9.0

12

11

11

11

11

9.2

7.4

6.0

4.7

8.8

10

9.0

9.2

11

6.9

4,182

13.5

829

Sept.

6.7

5.4

*12~9.4

8.6

8.2

7.4

4.5

BTS- 1.9

9.4

8.2

7.4

6.2

4.0

3.7

6.2

11

12

12

11

10

6.0

8.4

8.4

7.3

9.4

9.8

6.9

8 0

235.0

7.83

466

Mean 551 Ac-ft 399,800

Water year 1956-57: Max 3,260 Mln 1.9 Mean 316 Ac-ft 228,800

Peak discharge (base, 2,500 cfs). --May 6 (7:30 p.m.) 2,610 cfs (9.50 ft); May 18 (9:30 p.m.)

5,270 cfs (12.10 ft); June 3 (10 p.m.) 4,280 cfs (11.20 ft).

Discharge measurement made on this day. 

a No gage-height record Jan. 22 to Feb. 5; discharge estimated on basis of unpublished records for 

Balch powerhouse and Lake Wishon.

5105Z9 O - 59 - 18
260 TULARE LAKE BASIN

Kings River below North Fork, Calif.

Location.--Lat 36°52'30", long 119°08>30", in M£ sec. 21, T. 12 S., R. 26 E., on right 

bank 0.8 mile downstream from North Fork, 2.4 miles southwest of Balch Camp, and 

8.5 miles southeast of Trimmer.

Drainage area.--1,350 sq mi, approximately.

Records available.--December 1951 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 942.42 ft above mean sea level (levels by 

Corps of Engineers).

Average discharge.--5 years (1952-57), 1,926 cfs (1,394,000 acre-ft per year).

Extremes.--Maximum discharge during year, 21,100 cfs May 19 (gage height, 12.42 ft); min- 

 imum, 180 cfs Sept. 29.

1951-57: Maximum discharge, 85,200 cfs Dec. 23, 1955 (gage height, 23.08 ft), from 

rating curve extended above 18,000 cfs on basis of slope-area- determination of peak 

flow; minimum, 120 cfs Oct. 9, 1954.

Flood of Nov. 19, 1950, reached a stage of 21.6 ft, from floodmarks (discharge, 

74,200 cfs).

Remarks.--Records excellent. This station measures inflow to Pine Flat Reservoir. Flow 

slightly regulated by powerhouse on North Fork. Records of chemical analyses for the 

water year 1957 are given in WSP 1523.

Cooperation. Twenty discharge measurements furnished by Kings River Water Association.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, In cubic feet per second) 

Oct. 1 to May 18 May 19 to Sept. 30

2.4 

2.7 

3.0 

3.5

4.0

185 

£70 

375 

615 

920

5.0 1,790

6.0 2,940

7.0 4,450

9.O 9,06O

2.4 

2.7 

3.0 

3.5 

4.0 

5.0

185 

£70 

375 

620 

940 

1,800

6.0 

7.0 

8.0 

9.0 

11.0

2,940

4,460

6,560

9,380

15,900

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-It

Oct.

343 

339

351

403

520

490

495

485

460

446

407

420

395

363

351

328

335

328

288

282

288

279 585"

310

318

335

324

314

300

304

433

11,319

365

22,450

Nov.

363 

355

371

359

351

355

355

*343

343

343

332

321

307

297

288

273

282

276

270

252

255

252

246

240

237

231

228

237

231

225

8,818

294

17,490

Dec.

225 

219

216 516"

282

324

27^

237

249

282

*307

*324

324

324

304

285

285

264

243

249

249

243

231

240

228

225

228

225

222

222

219

7,961

257

15,790

Jan.

219 

216

205

*219

210

213

208

208

202

192

208

219

1,480

560

379

347

321

*324

310

347

332

318

332

310

314

343

297

297

279

291

294

9,994

322

19,820

Feb.

*318 

328

318

*297

307

310

321

626

566

485

848

*955

1,040

*934

803

*829

*862

796

760

706

*648

626

1,230

1,120

»2,250

1,520

1,230

1,200

22,213

793

44,060

Mar.

1,560 

1,210

1,080

997

1,010

,260

* ,260

,260

,260

,160

1,080

1,060

983

900

881

1,030

894

*862

822

760

*826

766

724

730

810

862

955

1,020

1,060

1,060

1,100

31,042

1,001

61,570

Apr.

1,200 

1,060

1,120

1,420

1,780

1,990

1,930

*1,910

1,900

2,130

2,320

2,240

2,310

2,660

2,300

2,080

2,080

2,090

*1,900

1,880

1,650

1,600

1,620

1,900

*2,130

2,160

*2,310

2,710

5,170

2,740

60,290

2,010

119,600

May

3,150 

5,550

3,800

4,480

5,140

*5,870

5,910

4,930

*4,170

3,860

3,410

2,990

*g,890

3,130

*2,890

3,130

3,780

8,480

11,700

5,750

5,200

4,770

*4,190

3,710

4,090

5,280

6,460

*6,790

6,030

5,940

7,590

152,860

4,931

303,200

June

9,800 

11,400

*12,200

12,700

*12,500

11,700

11,100

10,700

9,550

*6 , 820

5,960

7,000

8,180

*7,540

6,010

5,280

5,750

6,250

*6,690

6,740

6,150

5,550

5,620

5,840

6,150

6,270

5,710

5,340

4,980

4,200

229,640

7,655

455,500

July

5,660 

5,150

2,810

2,770

2,780

*2,640

2,550

2,210

2,100

1,980

1,870

1,780

1,680

1 , 510

1,450

1,570

1,510

1,280

1,190

1,110

1,020

926

*849

794

788

752

740

710

T46

728

740

49,755

1,605

98,680

Aug.

722 692"

644

650

662

604

676

548

552

495

475

456

442

458

428

*428

411

599

428

587

*575

375

359

359

351

335

321

314

*297

291

£82

14,176

457

28,120

Sept.

270 

258

249

240

*243

240

228

225

222

222

225

222

249

228

222

216

240

285

564

267

249

246

210

200

195

192

*190

190

188

2Q3

6,883

229

15,650

Calendar year 1956: Max 13,800 Mln 216 Mean 2,840 Ac-ft 2,062,000

Water year 1956-57: 1956-57: Max 12,700 Mln 188 Mean 1,657 Ac-ft 1,200,000 1,200,000 ______

Peak discharge (base, 8,000 cfs). May 19 (12:50 a.m.) 21,100 cfs (12.42 ft); June 5 (2 a.m.)

15,400 cfs (10.27 ft); June 14 (1 a.m.) 9,590 cfs (9.07 ft); June 20 (5 a.m.) 8,150 cfs (8.59 ft)

Discharge measurement made on this day.
TULARE LAKE BASIN 261

Big Creek above Pine Flat Reservoir, Calif.

Location. Lat 36°55'05", long 119°14'45", in NE£ sec. 4, T. 12 S., R. 25 E., on right 

bank 2.4 miles above mouth and 2.7 miles northeast of town of Trimmer.

Drainage area. 69.2 sq mi.

Records available.--October 1953 to September 1957.

Gage. Water-stage recorder. Datum of gage is 962.04 ft above mean sea level (levels 

oy Corps of Engineers).

Extremes. Maximum discharge during year, 2,050 cfs May 19 (gage height, 5.89 ft), from 

rating curve extended above 250 cfs as explained below; minimum, 1.4 cfs Sept. 10, 11. 

1953-57: Maximum discharge, 10,400 cfs Dec. 23, 1955 (gage height, 9.21 ft), from 

rating curve extended above 220 cfs on basis of slope-area determination of peak flow; 

no flow Sept. 14, 1955.

Remarks. Records excellent except those above 300 cfs, which are good. This station 

measures inflow to Pine Flat Reservoir. No regulation or diversion above station.

Cooperation. Pour discharge measurements furnished by Kings River Water Association.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

In cubic feet per second)

Oct. 1 to Jan. 13 Jan. 14 to Sept. 30

1.05 1.75

1.1 2. 4

1.2 4.2

1.3 6.9

1.6 

2.0 

2.5

1.15

1.2

1.3 

1.5 

1.7 

2.0

1.0

2.0

4.4

12

23

45

2.5 

3.0 

3.5

4.0 

4.5 

5.0

94

174

326

520

790

1,140

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.2

2.1

77?

3.6

14

8.6

6.9

6.9

6.0

5.4

5.4

6.3

5.7

5.2

4.9

4.6

4.2

4.2

4.2

4.4

4.2

4.2

5.4

12

*8.6

8.2

7.6

7.6

7.9

9.4

22

204.1

6.58

405

Nov.

11

-ff.2

7.6

7.2

6.9

6.9

6.6

6.3

6.0

5.7

5.7

5.7

5.7

6.0

6.3

6.3

6.3

6.3

6.3

6.3

6.6

6.9

6.6

6.3

6.0

6.0

6.3

6.3

*6.0

6.0

196.3

6.54

389

Dec.

6.0

6.0

5.7

^5

25

35 »T5

12

10

11

11

11

11

 11

11

10

9.8

9.8

9.4

9.0

9.0

8.2

9.0

9.4

9.0

9.0

8.6

9.0

9.0

9.0

8 . 6

332.5

10.7

660

Jan.

8.6

8.6

8.6

8.2

8.6

9.0

8.6

8.6

8.2

7.6

9.0

9.4

88 JT

22

 15

13

12

11

21

»21

16

14

12

12

16

13

15

11

12

12

480

15.5

952

Feb.

12

13

12

11

Hz

12

13

52

43

28

50

 46

43

36

30

28

27

24

21

19

18

20

230

151

*367

*109

74

73

-

1,574

56.2

3,120

Mar.

126 ~9T

70

58

63

83

65

57

124

95

67

69

71

58

52

85

66

55

50

47

47

43

41

40

39

40

40

39

 38

40

37

1,896

61.2

3,760

Apr.

36

34

33

33

33

32

31

27

26

25

25

24

71

26

31

24

29

86

67

85

69

60

 53

53

58

55

57

53

47

48

1,284

42.8

2,550

May

42

*37

36

33

30

28

26

27

27

26

35

39

33

»60

55

48

41

240

903

?3T

»226

145

123

98

85

73

65

60

57

54

51

3,039

98.0

6,030

June

47

43

40

37

36

34

33

32

32

40

37

34

30

29

27

26

25

23

22

20

20

19

18

17

16

15

14

»T4

14

14

808

26.9

1,600

July

14

T3

13

12

11

11

10

10

9.7

9.3

8.9

8.5

8.1

7.7

7.7

7.7

6.9

7.9

6.5

6.1

6.1

6.5

6.5

6.1

6.1

 5.3

5.0

5.0

4.7

4.4

4TT

248.1

8.00

492

Aug.

3.8

3.8

3.8

3.8

3.8

4.4

4T4

4.1

4.1

3.8

3.8

3.5

3.2

3.0

2.8

2.8

2.8

2.6

2.6

2.4

2.4

2.2

2.4

2.2

2.2

2.0 2-^5

2.0

 2.0

2.2

2 .4

93.3

3.01

185

Sept.

2.8

2.6

2.4

2.2

2.0

2.0

1.8

1.6

1.6

1.4

1.4

1.6

1.6

1.8

1.8

2.0

2.6

5.3

3T5

3.0

2.8

2.4

2.2

2.0

1.8

1.8

 1.8

2.0

2.0

2.2

66.3

2.21

132

Calendar year 1956: Max 2,180 Min 2.0 Mean 67.1 Ac-ft 48,690

Water year 1956-57: Max 903 Mln 1.4 Mean 28.0 Ac-ft 20,270

Peak discharge (base. 500 cfs).--Feb. 23 (4 p.m.) 560 cfs (4.08 ft); Feb. 25 (2 a.m.) 838 

(4.58 ft); May 19 (2:30 a.m.) 2,050 cfs (5.89 ft).________________________________

* Discharge measurement made on this day.
262 TULARE LAKE BASIN

Sycamore Creek above Pine Flat Reservoir, Calif.

Location.--Lat 36°55'15", long 119°18'30", in W$ sec. 1, T. 12 S. , R. 24 E., on right 

bank 0.1 mile downstream from Little Dry Creek, 1.7 miles northwest of town of Trimmer, 

and 4.8 miles upstream from mouth.

Drainage area.--56.5 sq mi.

Records available.--April 1953 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 1,141.96 ft above mean sea level (levels 

by Corps of Engineers).

Extremes. Maximum discharge during year, 1,590 cfs May 19 (gage height, 5.13 ft); no 

flow for several months.

1953-57: Maximum discharge, 6,760 cfs Dec. 24, 1955 (gage height, 9.78 ft), from 

rating curve extended above 2,900 cfs on basis of slope-area determination of peak flow; 

no flow for several months each year.

Remarks. Records good. This station measures inflow to Pine Flat Reservoir. 

Cooperation. Three discharge measurements furnished by Kings River Water Association.

Rating tables, water year 1956-57 (gage height, in feet, and 

discharge, in cubic feet per second)

Oct. 1 to Apr. 18 Apr. 18 to Sept. 30

0.6 

.7

1.4 

4.7

1.1

1.3 

1.6 

2.0

89

162 .9 

1.0

1.5

4.6

10

1.2 28

1.5 68

2.0 162

3.0 448

4.0 890

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

2 1

22 .

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Cale

Oct.

*0 

0

0

0

0

0

0

0

.1

.2

.3

.3

.3

.3

.3

*.3

.3

.3

.3

.3

.3

.3

.6

.7

.6

.6

.6

.6

.4

.6

1.0

9.6

0.31

19

Nov.

0.7 

.6

76

.6

.6

.6

.6

.6

.6

.7

.8

.6

.6

.6

.6

.7

.7

.9

*.9

.8

.8

.9

1.0

1.0

1.0

1.0

1.0

T70- 1.1

1.1

23.3

0.78

46

Dec.

H1.1 1.1

7.5

10

*2-.8

2.0

1.6

1.4

1.4

1.4

1.4

*1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.1

1.3

58.2

1.88

115

Jan.

1.3 

1.1

T7T

1.1

1.6

1.4

1.4

1.6

1.6

1.6

1.6

2.0

~5.2 28

3.2

*2.5

2.3

2.0

1.8

12

*17

6.8

3.6

2.8

2.8

7.5

6.8

4.7

3.6

3.2

2.8

139.0

4.48

276

Feb.

2.8 

2.8

3.2

2.8

2.5

2.5

2.8

16

13

6.8

8.2

*6.8

4.7

4.1

3.6

3.2

2.8

2.5

2.5

2.5

2.3

2.5

89

39

*148

24

*16

18

434.7

15.5

862

Mar.

§

24

16

18

24

16

13

62

32

18

18

18

14

13

26

18

13

11

9.6

8.9

7.5

6.8

6.8

6.8

6.1

6.1

5.4

574

5.4

5.4

536.2

17.3

1,060

Apr.

4.7 

4.1

4.1

3.6

3.6

3.6

3.6

3.6

3.2

372

3.2

3.2

3.2

4.7

4.7

4.1

6.8

68

?5

40

26

20

»16

14

11

9.0

7.8

6.6

6.1

5.6

322.3

10.7

639

May

4.6 

4.0

*4.0

3.6

3.2

2.8

2.5

372

3.2

2.8

4.6

6.1

5.0

*10

*9.6

5.6

3.6

212

~SI 509

*78

*38

26

21

16

13

10

9.0

7.8

7.2

6.1

1,112.5

35.9

2,210

June

B5.0

4.0

3.2

2.8

2.5

2.2

2.2

3.2

3.6

2.8

2.5

2.2

2.0

1.8

1.8

1.5

1.4

1.2

1.1

1.0

1.0

1.0

*.8

.6

.5

.3

.3

.2

64.4

2.15

128

July

**

.1

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0.4

0.01

0.8

Aug.

(»)

(*)

0

0

0

Sept.

(*)

0

0

0

idar year 1956: Max 2,300 Mln 0 Mean 31.2 Ac-ft 22,670

Water year 1956-57: Max 509 Mln 0 Mean 7.40 Ac-ft 5,360

Peak discharge (base, 300 cfs). Feb. 25 (3 a.m.) 646 cfs (3.49 ft); May 19 (2 a.m.) 1,590 cfs 

(5.13 ft).

* Discharge measurement or observation of no flow made on this day.
TUL'ARE LAKE BASIN 263

Pine Plat Reservoir near Piedra, Calif.

Location. Lat 36°49 I 55", long 119019'25", in NE£ sec. 2, T. 13 S., R. 24 E., near center 

of Pine Flat Dam on Kings River, 1.9 miles upstream from Mill Creek, 3.5 miles northeast of Piedra, and 16 miles northeast of Sanger.

Drainage area. 1.542 sq mi.

Records available.--October 1951 to September 1957.

Gage. Water-stage recorder. Datura of gage is at mean sea level (levels by Corps of 

Engineers). Prior to Apr. 8, 1952, non-recording mercury gage on dam at same datum.

Extremes.--Maximum contents during year, 898,600 acre-ft June 20 (elevation, 933.66 ft); 

minimum, 291,800 acre-ft Sept. 30 (elevation, 792.22 ft).

1951-57; Maximum contents, 938,900 acre-ft June 29, 1956 (elevation, 940.78 ft); 

minimum, less than 13 acre-ft during many months in 1951-54.

Remarks. Reservoir is formed by gravity-type concrete dam; regulation of discharge from 

reservoir began Dec. 4, 1951. Capacity, 1,013,400 acre-ft between elevations 

565.5 (bottom of lower tier of river outlets) and 953.5 ft (top of spillway gates) 

above mean sea level. Reservoir is used.for flood control and conservation storage. 

Water is released down Kings River to diversion dam of Kings River Water Association. 

Records show total contents at 12 p.m., all of which is available for release.

Cooperation.--Records furnished by Corps of Engineers and reviewed by Geological Survey.

Capacity table, water year 1956-57 (elevation, In feet, 

and total contents, in acre-feet)

790

800

820

840

860

285,000

316,200

383,600

457,800

538,800

880

900

920

940

626,800

721,800

824,200

934,400

Total contents, in acre-feet, at 12 p.m., water year October 1956 to September 1957

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

81

Oct.

406,300

406,700 

407,400 

408,500 

409,500

410,300 

411,300 

412,200 

413,100 

413,900

414,700 

415,300 

415,800 

416,100 

416,500

416,900 

417,300 

417,800 

418,200 

418,600

419,100 

419,500 

420,100 

420,500 

421,000

421,500 

422,100 

422,600 

423,000 

423,700 

424,500

831.26 

+18, 700

Nov.

425,200

425,800 

426,500 

427,100 

427,700

428,300 

428,900 

429,500 

430,100 

430,700

431,300 

431,900 

432,400 

432,900 

433,400

433,900 

434,400 

434,800 

435,300 

435,700

436,100 

436,500 

436, 900 

437,300 

437,700

438,100 

438,500 

438,900 

439, 300 

439,700

835.30 

+15,200

Dec.

440,000

440,400 

440,600 

440,800 

441,800

442,500 

442,900 

443,200 

443, 600 

444,000

444,500 

445,000 

445,400 

445,800 

446, 200

446,500 

446,800 

447,100 

447,200 

447,300

447,400 

447,500 

447 , 600 

447,600 

447,800

447,900 

448,100 

448,400 

448,600 

448,700 

449,000

837.73 

+9,300

Jan.

449,200

448,800 

448,500 

448,000 

447,500

446,900 

446,200 

445,600 

445,000 

444, 300

443, 700 

443, 200

445,500 

446,100 

446,200

446,000 

446,000 

445,900 

445,600 

446, 100

446,300 

446, 300 

446,300 

446, 400 

446,500

446,800 

446,900 

447,100 

447,100 

447,200 

447,200

837.27 

-1,800

Feb.

447j_300

447,400 

447 , 500 

447,500 

447 , 500

447 , 500 

447,600 

448 , 500 

449,200 

449,700

451,100 

452,800 

454,800 

456,600 

458,100

459,600 

461,200 

462,700 

464,000 

465,100

466,100 

467,200 

470,100 

472,500 

477,400

480,100 

482,100 

483,900

~

846.65 

+36,700

Mar.

486,100 

487,800 

488,300 

488,500 

488,600

489,200 

489,700 

490,000 

490,700

490,500

490,100 

489,500 

488,700 

487,500 

486,400

485,800 

494, 700 

483, 600 

482,300 

480,800

479,600 

478,500 

477,400 

476,100 

475,000

474,000 

473,200 

472,300 

471,200 

470,200 

468,900

842.86 

-15,000

Apr.

467,900 

467,200 

466, 500 

466,200

466,800

467,500 

468,400 

469,200 

470, 200 

471,800

474,100 

476,200 

478,300 

481, 600 

483,500

484,700 

486,500 

489,200 

491,200 

493, 200

494,900 

496,200 

497,900 

500,000 

502,600

505,100 

508,000 

511,500 

515,900 

518,600

855.19 

+49, 700

May

521,800

525,600 

530,100 

536,000 

543,000

551,000 

559,000 

565,000 

569,200 

572,900

576,000 

578,700 

581,300 

584,800 

587,700

591,200 

595,500 

611,600 

638,500 

650,000

659,900 

668,800 

676,300 

682,500 

689,400

696,400 

705,500 

714,100 

721,200 

728,000 

737,000

903.08 

-t-218,400

June

748,800

764,000 

780,900 

799,600 

817,100

831,600 

844,500 

856,400 

865,700 

868,700

869,800 

873,000 

878,400 

882,100 

884,700

887,200 

890,500 

894, 600 

897,700 

898, 600

897,800 

895,600 

893,700 

891,900 

889,900

888,000 

884,000 

879,400 

874,500 

868,100

928.14 

+131,100

July

860,900

852,700 

844,100 

836,200 

828,300

819,900 

810,900 

801,600 

792,100 

782,500

772,900 

763,000 

753,000 

742,700 

732,200

721,100 

709,700 

698,300 

686,500 

674,800

662,800 

650,800 

638,900 

628,900 

620,200

611,400 

602,500 

593,500 

584,400 

575,100 

565,900

866.35 

-302,200

Aug.

557,000

548,300 

539,800 

531,400 

524,200

516,500 

508,800 

500,700 

492,800 

485,000

477,200 

469,300 

461,400 

453,500 

447,800

442,400 

437,100 

431,600 

426,100 

420,500

415,000 

409,600 

404,200 

398,800 

393,400

388,000 

382,800 

377,500 

372,400 

367,300 

363,900

814.38 

-202POO

Sept.

360j 900

357,900 

354,800 

351,800 

348,900

346,100 

343,400 

340,700 

337,800 

335,000

332,100 

329,400 

326,800 

324,400 

321,900

319,400 

317,600 

315,800 

314,100 

312,200

310,100 

307,900 

305,400 

302,900 

300,400

298,100 

296, 300 

294,600 

293,100 

291.800

792.22 

-72,100

Calendar year 1956.................... * -28,300

Water year 1956-57.................... * -114,000

t Elevation, In feet, at end of month. 

* Change In contents, in acre-feet.
264 TULARE LAKE BASIN

Kings River below Pine Flat Dam, Calif.

Location. Lat 36°49'50", long 119°20'05", in NW£ sec. 2, T. 13 S., R. 24 E., on right

 bank 3,200 ft downstream from Pine Flat Dam and 2.9 miles northeast of Piedra. Prior

to Oct. 1, 1956, at site 0.2 mile downstream. 

Drainage area. 1,542 sq mi.

Records available. January 1954 to September 1957. 

Gage. Water-stage recorder. Datum of gage is 556.97 ft above mean sea level (levels by

Corps of Engineers). Prior to Oct. 1, 1956, at site 0.2 mile downstream at datum

Extremes.--Maximum discharge during year, 9,270 cfs June 2V (gage height, 8.19 ft); mini1954-57: Maximum discharge, 10,400 cfs June 11, 1956 (gage height, 7.67 ft, site 

and datum then in use); minimum daily, 7.5 cfs Jan. 17, 1955. 

Remarks. Records excellent. Flow completely regulated by Pine Flat Reservoir (see

 preceding page). Records of chemical analyses for the water year 1957 are given in

WSP 1523 Cooperation! Seventeen discharge measurements furnished by Kings River Water Association.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Jan. 31 Feb. 1 to June 30 July 1 to Sept. 30

0.3

.5

.8

1.2

1.6

2.0

2.5

3.0

15

30

60

115

181

263

410

605

l.Z 

1.7 

2.2 

2.8 

3.4

110

193

300

520

800

4.2 

5.0

6.0 

7.0 

8.0

1,320

2,160

3,860

6,100

8,700

3.3 

4.0 

5.0 

6.0 

7.0 

8.0

750

1,160

2,150

3,770

6,000

8,760

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

zz

23

24

Z5

Z6

27 

28

29

30

31

Total

Mean

Ac-ft

(t)

(tt)

Oct.

*79 

87 

 49

56

*63

29

24

24

24

23

*22

54

*170

172

179

1Z1

118

91

5Z

57

58

59

60

*59

58

58

58 

57

56

57 

57

2,161

69.7

4,290

+18,700

1.Z34

Nov.

*42 

39 

40

40

41

44

4545"

44

45

39

39

43

42

32

30

31

31

32

34

34

34

34

34

21

24

28 

Z8

29

 29

1,073

35.8

Z,130

+15, ZOO

856

Dec.

46 

W 

63

70

72

65

61

70

70

69

70

69

103

103

103

103

167

168

170

170

179

Tf9" 181

179

177

148

112 

115

114

112 

114

3,482

112

6,190

+9,300

454

Jan.

103 *353" 

397

434

445

524

5"28~ 528

508

504

504

504

476

325

381

420

35Z

400

414

407

286

316

308

308

308

278

239 

*237

235

 243 

276

11,551

373

22,910

-1,800

355

Feb.

284 

287 

303

303

303

*303

303

284

Z70

267

267

163

156

118

T3T

125

127

127

153

170

175

188

184

ZZ6

248

Z44

340 

464

-

-------

6,515

Z33

1Z.920

+36,700

356

Mar.

528 

524 910"

988

1,050

1,080

1,100

1,130

1,160

1,350

1,390

1,410

1,480

*1,500

1,500

1,500

1,500

*1,490

1,500

1,510

1,500

1,350

1,320

1,390

1,380

1,360

1,360 

*1,530

1,590

1,630 

1,740

40,750

1,315

80,830

-15,000

866

Apr.

 1,740 i.izd

1,480

1,500

1,500

1,550

1,510

1,500

1,340

1,290

1,170

1,160

1,150

1,150

1,300

1,450

1,260

1,030

1,000

1,010

958

866

SBT

872

877

882

916 

940

946

*1,340

35,973

1,199

71,350

+49,700

1,334

May

1,500 

1,450 

1,480

1,500

1,590

1,770

1,890

2,010

2,070

2,060

*1,890

1,640

1,580

1,510

1,440

1,400

1,490

1,370

685

660

720

685

760

770

780

1,880

2,030 

2,550

2,550

2,610 

*5,15Q

49,470

1,596

98,120

as, 400

1,733

June

3,920 

3,920 

4,000

5,560

3,946

4,610

4,800

5,000

5,040

5,480

*5,580

5,430

5,620

5,820

4,820

4,140

4,160

 4,290

5,130

6,300

6,650

*6,720

6,700

6,820

7,120

7,300

 7,720 

7,720

7,580

7,550

167,440

5,581

332,100

131,100

3,888

July

7,310 

7.540 

7,15(5

6,740

6,800

6,820

6,850

6,900

6,850

*6,770

*6,670

6,670

6,670

6,640

6,670

6,930

6,930

6,990

7,180

7,010

6,960

6,900

6,850

5,750

5,180

5,160

5,180 

5,250

*5,320

5,340 

5,320

201,100

6,487

398,900

502,200

3,961

Aug.

5,200 

5,060 

4,860

4,570

4,500

4,460

 4,460

 4,570

4,480

4,350

4,410

4,410

4,390

4,330

3,220

3,080

3,050

3,120

3,150

3,120

3,100

3,120

3,070

3,030

3,050

3,020

2,910 

*2,930

2,880

 2,830 

1.950

114,680

3,699

227,500

202,000

3,129

Sept.

1.740 

1,730 

1,740

1,660

1,640

 1,580

1,530

1,500

1,550

1,580

1,580

1,530

1,460

1,380

1,370

1,390

1,200

1,120

1,060

1,160

1,210

1,290

1,350

1,360

1,340

1,270

1,010 

958

952

 790

41,030

1,368

81,380

-72,100

2,033

Adjusted for change In reservoir contents and evaporation

Mean

Cfsm

In.

Ac-ft

394

24,220

306

18,190

271

16,660

349

21,460

900

49,980

1,085

66,700

2,057

122,400

5,177

318,300

7,850

467,100

1,638

100, 700

466

28,630

190

11,310

Calendar year 1956 : 

Water year 1956-57:

Max 

Max

8,880 

7,720

Mln 9.6 

Mln 21

Mean 

Mean

3,012 

1,850

Ac-ft 

Ac-ft

2,186,000 

1,339,000

AdjustedCalendar year 1956 : 

Water year 1956-57:

Mean

Mean

2,997 

1,721

Cfsm 

Cfsm

In. 

In.

Ac-ft 

Ac-ft

2,176,000 

1,246,000

 Discharge measurement made on this day.

t Change In contents, In acre-feet, of Pine Flat Reservoir, furnished by Corps of Engineers.

tt Evaporation, In acre-feet, from Pine Flat Reservoir, furnished by Corps of Engineers.
TULARE LAKE BASIN 265

published

gage is 

30, 1914,

Kings River at Piedra, Calif.

Location. Lat 36°49'02", long 119°23'08", in NW£ sec. 8, T. 13 S. , R. 24 E., on left 

bank 0.5 mile downstream from highway bridge at Piedra, 2 miles downstream from Mill 

Creek, 4 miles downstream from Pine Flat Dam, and 12 miles northeast of Sanger.

Drainage area. 1,694 sq mi.

Records available. September 1895 to September 1957. prior to Oct. 1, 1924, 

as "near Sanger."

Gage. Water-stage recorder at present site since Feb. 7, 1931. Altitude of

500 ft (from topographic map). Sept. 3, 1895, to Apr. 17, 1903, and Jan. ^, +^^, 

to Jan. 14, 1920, staff gage and Apr. 18, 1903, to Jan. 25, 1914, and Jan. 15, 1920, 

to Feb. 6, 1931, water-stage recorder at site 1,000 ft upstream at different datum.

Average discharge.--62 years, 2,296 cfs (1,662,000 acre-ft per year), adjusted for 

storage.

Extremes. Maximum discharge during year, 8,420 cfs June 27 (gage height, 8.61 ft); min-

 imum, 21 cfs Nov. 26, 27.

1895-1957: Maximum discharge, 91,000 cfs Nov. 19, 1950 (gage height, 21.0 ft), 

from rating curve extended above 30,000 cfs on basis of slope-area determination of 

peak flow; minimum, 10 cfs Nov. 16, 1955.

Remarks. Records excellent except those for periods of shifting control, which are good. 

Flow regulated by Pine Flat Reservoir (see p. 263). Approximately 400 acres irrigated above station in Mill Creek area.

Revisions (water years).--WSP 831: 1932-33(M), 1935-36(M). WSP 881: 1896-1909 

(yearly summaries only).

Rating table, water year 1956-57 (gage height. In feet, and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 21 to Feb. 11, Feb. 16 to Mar. 2, Mar. 4 to July 24)

1.0 

1.5

51

95

196

2.0 

2.5 

3.0

343

550

820

4.0 

5.0 

6.0

1,530

2,470

3,660

7.0 

8.0 

9.0

5,180

7,150

9,700

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

(*)

Mean

Cf sm

In.

Ac-ft

Oct.

*121

93

53

49

70

38

28

28

27

27

26

62

171

173

178

128

119

95

58

56

59

59

62

*59

59

59

58

58

56

58

56

2,243

72.3

4,450

+18,700

1,234

397

24,380

Nov.

*44

39

40

40

40

43

44

43

43

44

39

38

41

41

33

31

31

31

31

33

33

33

32

32

K

25

26

30

30

*30

1,065

35.5

2,110

+15,200

856

305

18,170

Dec.

41

56

61

68

74

78

69

74

75

75

74

74

100

104

106

106

158

167

167

169

178

ITS

175

178

178

158

119

121

119

119

119

3,538

114

7,020

+9,280

454

Adjustec

272

16,750

Jan.

119

*325

376

424

432

500

510

510

492

487

487

492

482

343

376

416

354

380

404

412

319

319

312

312

312

299

260

*251

245

254

283

11,487

371

22,780

-1,760

355

1 for ch,

348

21 , 380

Feb.

293

296

306

309

312

312

312

309

312

296

293

201

184

150

T54

154

152

152

178

196

201

211

234

271

*303

293

369

482

_

7,235

258

14,350

+36,700

356

inge in

926

51,410

Mar.

565

565

932

1,020

1,090

1,120

1,130

1,160

1,180

1,390

1,410

1,440

1,510

1,510

1,510

1,530

1,530

1,510

1,510

1,540

1,510

1,360

1,330

1,420

1 , 400

1,390

1,390

*1,550

1,620

1,670

1,760

41,552

1,340

82,420

-15,000

866

reservoi

1,111

68,290

Apr.

1.770

1,470

1,510

1,540

1,550

1,590

1,550

1,550

1,390

1,320

1,210

1,200

1,180

1,180

1,320

1,470

1,280

1,070

1,020

1,020

984

868

868

868

868

874

919

938

938

 1,350

36,665

1,222

72,720

+49,700

1,334

r content

2,081

123,800

May

1,510

1,470

1,490

1,510

1,590

1,740

1,860

1,960

2,020

2,030

*1,860

1,620

1,560

1,510

1,430

1,400

1,470

1,280

932

710

754

694

738

744

749

1,860

2,070

2,580

2,620

2,650

*5.140

49,551

1,598

98,280

*2 18,300

1,733

s and e\

5,177

318,300

June

3,900

3,880

4,000

3.560

3,860

4,520

4,750

4,870

4,960

5,350

5,510

5,350

5,550

5,790

4,820

4,010

4,020

*4,160

4,990

6,090

6,500

6,580

6,540

6,670

7,020

7,300

7.820

7,820

7,580

7,550

165,320

5,511

327,900

+131,100

3,888

aporati

7,779

462,900

July

7.350

*7,350

7,150

6,750

6,820

6,840

6,840

6,930

6,820

*6,750

6,690

6,710

6,710

6,690

6,710

6,950

7,000

7,040

7,150

7,020

7,000

6,930

6,860

5,880

5,250

*5.250

5,280

5,330

5,420

5,420

5,400

202,270

6,525

401,200

-302,200

3,961

jn

1,675

103,000

Aug.

5.280

5,160

4,960

4,640

4,590

4,550

4,530

4,630

4,580

4,420

4,470

4,460

4,460

4,410

3,350

3,160

3,130

3,200

3,220

3,190

3,190

3,160

3,130

3,100

3,090

3,080

2,980

2,980

2,950

*2 , 900

2.050

117,000

3,774

232,100

-202,000

3,129

540

33,230

Sept.

1,850

1,830

1,840

1,770

1,750

1,690

1,640

1,610

1,690

1,700

1,700

1,640

1,570

1,490

1,480

1,500

1,290

1,210

1,150

1,250

1,310

1,400

1,470

1,490

1,470

1,390

1,120

1,040

1,040

*862

44,242

1,475

87,750

-72,200

2,033

295

17,580

Observed

Calendar year 1956: 

Water year 1956-57:

Max 

Max

9,150 

7,820

Min 25 

Min 25

Mean 3,187 

Mean 1,869

Ac-ft 

Ac-ft

2,313,000 

1,353,000

Adjusted

Calendar year 1956: 

Water year 1956-57:

Mean 

Mean

3,172

1,739

Cfsm 

Cfsm

In.

In.

Ac-ft 

Ac-ft

2,303,000 

1,259,000
266 TULARE LAKE BASIN

Los Gatos Creek above Nunez Canyon,near Coalinga, Calif.

Locatipn.--Lat 36°12'55", long 120°28'10", on line between SWir and SE^ of sec. 5, T. 20 S., 

R. 14 E., on left bank 1.1 miles upstream from Nunez Canyon, 3.0 miles downstream from 

White Creek, and 8 miles northwest of Coalinga.

Drainage area. 95.5 sq mi.

Records available. October 1949 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,100 ft (from topographic map).

Average discharge. 8 years, 2.17 cfs (1,570 acre-ft per year).

Extremes. Maximum discharge during year, 190 cfs Jan. 13 (gage height, 2.39 ft); no flow 

for several months.

1949-57: Maximum discharge, 1,250 cfs Jan. 25, 1952 (gage height, 3.70 ft, from 

floodmarks), from rating curve extended above 260 cfs by logarithmic plotting; no flow 

for several months each year.

Remarks. Records good. No regulation or diversion above station. 

Revisions (water years). WSP 1215: 1950, drainage area.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.15

1.2

1.3

1.4

1.5

Discharge, in cubic feet per

.2

.7

2.0

4.4

1.6

1.7

1.8

1.9

8.7

15

ond, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12.

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

(*)

O

0

0

Dec.

0

0

0

Jan.

O

0

*0

0

0

o

0

0'0

o

0

0

38

T.O

.6

.4

.3

.2

.2

2.8

.3

0

o

0

0

.1

.3

.2

.1

.1

.1

44.7

1.44

89

Feb.

 

0.1

.2

.2

.2

.2

.2

*.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

4.7

12

10

2.9

2.4

*6.6

-

43.6

1.57

86

Mar.

15

8.2

3.4

2.6

1.8

1.5

1.1

.9

.9

.8

.7

.7

.8

*.9

.9

1.0

.9

.9

.6

*.5

.4

.4

.4

.4

*_i!

.3

.3

.3

.3

.3

.3

47.8

1.54

95

Apr.

0.3

.2

.2

.2

^1.

.1

.1

.1

.1

.1

.1

.1

.1

.1

*.l

.1

15

16

T.e

»2.9

4.1

2.0

1.4

.9

.6

.4

.3

.2

.2

.2

50.1

1.67

99

May

0.2

.2

.1

.1

.1

.1

.1

.1

.1 *p_

.1

.3

.2

.2

.2

.1

.1

.1

.2

.2

.2

.1

.1

0

0

o

o

0

0

0

0

3.2

O.1O

6.3

June

(*)

0

0

0

July.

O

o

0

Aug.

0

0

0

Sept.

0

O

0

Calendar year 1956: Max 194 Mln o Mean 2.57 Ac-ft 1,86O

Water year 1956-57: Max 38 Mln 0 Mean O.5Z Ac-ft 375

Peak discharge (base, 4O cfs). Jan. 13 (3:30 a.m.) 19O cfs (2.39 ft); Feb. 24 (10 a.m.) 48 cfs 

(1.95 ft); Apr. 17 (7:50 p.m.) 115 efs (2.16 ft)._____________________________________ 

* Discharge measurement or observation of no flow made on this day.
SAN JOAQUIN RIVER BASIN 267

North Fork San Joaquin River below Iron Creek, Calif.

Location. Lat 37°36'50", long 119°14'00", in SE^ sec. 4, T. 4 S., R. 25 E., on right bank 

0.8 mile downstream from Iron Creek and 27 miles northeast of town of Bass Lake.

Drainage area. 38.0 sq mi.

Records available. October 1920 to July 1928 (fragmentary prior to July 1921), October 

1951 to September 1957 (no winter records).

Gage.--Water-stage recorder. Altitude of gage is 6,800 ft (from topographic map). Prior 

to May 22, 1922, staff gages at same site and datum.

Average discharge. 6 years (1921-27), 113 cfs (81,810 acre-ft per year).

Extremes. Maximum discharge recorded during year, 1,490 cfs June 3 (gage height, 6.93 ft); 

minimum recorded, 3.2 cfs Jan. 4.

1920-28, 1951-57: Maximum discharge recorded, 3,860 cfs July 24, 1956 (gage height, 

8.15 ft), from rating curve extended above 830 cfs by logarithmic plotting; minimum, 

0.4 cfs Nov. 13, 1955.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

No storage or diversion.

Cooperation. Water-stage-recorder graph and eight discharge measurements furnished by 

Southern California Edison Co. in connection with a Federal Power Commission project.

Revisions (water years). WSP 1345: 1925-26(M), 1927, 1928(M).

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

3.6 

4.0 

4.2 

4.5

5.0 

5.5 

6.0 

7.0

135

265

520

1,600

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Ac-ft

Oct.

24

12

22

21

19

18

19

23

*20

18

24

21

19

17

16

15

14

13

13

12

11

11

9.8

13

16

17

18

16 

16

17

22

536.8

17.3

1,060

Nov.

21

20

23

28

33

35

39

44

44

39

34

30

25

20

18

17

16

15

12

13

11

11

11

10

9.8

10

9.8

9.4

9.0

Q ~f\ y »u

626.0

20.9

1,240

Dec.

8.7

8.4

8.1

37T

9.4

19

17

16

16

16

19

23

24

20

17

16

15

14

13

12

11

11

11

10

9.4

9.4

9.4

9.0 

9.4

9.0

8.4

406.7

13.1

807

Jan.

7.8

7.8

7.2

6.6

679

7.5

7.5

7.8

8.4

7.8

7.5

8.4

15

18

li

23

19

16

14

16

15

14

13

13

12

12

12

11 

11

11

11

376.2

12.1

746

Feb.

-

_

-

-

Mar.

_

-

-

Apr.

70

60

85

105

120

130

125

115

130

140

145

140

*149

155

116

94

72

66

58

53

55

59

68

94

115

133

163

218

218

218

3,469

116

6,880

May

209

192

203

29S

377

398

350

218

171

157

125

108

108

108

116

186

242

441

230

137

143

139

125

158

262

*385

396

332

282

398

625

7,619

246

15,110

June

775

832

925

902

863

726

805

674

385

265

356

470

562

408

320

316

383

486

539

515

478

483

504

558

626

»559

»554

548 

433

312

16,562

552

32,850

July

262

22T

224

251

248

203

188

198

198

198

173

163

151

133

139

*143

133

125

109

97

81

75

77

78

77

81

78

80 

82

81

81

4,428

143

8,780

Aug.

78

70

73

72

58

50

46

45

44

42

40

35

34

37

40

37

39

40

38

35

33

31

33

34

33

27

*23

20 

19

17

16

1,239

40.0

2,460

Sept.

15

16

17

18

19

19

19

20

22

23

23

22

22

20

19

17

19

18

15

13

12

11

11

11

11

11

10

if4

*14

487.4

16.2

967

Calendar year : Max Kin Mean Ac-ft

Water year : Max Min Mean Ac-ft

* Discharge measurement made on this day.

Note. No gage-height record Jan. 27-31, Apr. 1-12; discharge estimated on basis of weather recirds and records for San Joaquin River at Miller Crossing.
268 SAN JOAQUIN RIVER BASIN

San Joaquln River at Miller Crossing, Calif.

Location. Lat 37°30 I 35", long 119°11'50", in NE^ sec. 11, T. 5 S., R. 25 E., on right 

bank 2.4 miles downstream from North Fork San Joaquin River, 4.6 miles east of Clover 

Meadow ranger station, and 23 miles northeast of town of Bass Lake.

Drainage area. 254 sq mi.

Records available. October 1921 to July 1928, October 1951 to September 1957. Prior to 

October 1954, published as Middle Fork San Joaquin River at Miller Bridge.

Gage. Water-stage recorder. Altitude of gage is 4,570 ft (from topographic map). Prior 

To Mar. 24, 1922, staff gage at same site and datum.

Average discharge. 11 years (1922-27, 1951-57), 576 cfs (417,000 acre-ft per year).

Extremes. Maximum discharge during year, 5,610 cfs May 18 (gage height, 17.02 ft); minimum, 53 cfs Nov. 8.

1921-28, 1951-57: Maximum discharge, 16,600 cfs Dec. 23, 1955 (gage height, 

21.28 ft), from rating curve extended above 5,100 cfs on basis of contracted-opening 

determination of peak flow; minimum observed, 27 cfs Dec. 3, 1921.

Remarks. Records good except those for January, February and March, which are fair. No 

storage or diversion.

Cooperation. Water-stage-recorder graph and five discharge measurements furnished by 

Southern California Edison Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height, In feet, and 

discharge, In cubic feet per second)

9.5

10.0

10.5

11.0

12.0

64

113

178

290

615

13.0

14.0

15.0

17.0

1,090

1,810

2,810

5,580

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

155

144

141

140

135

*129

129

149

141

130

162

145

139

129

122

115 

110

105

101

99

97

95

99

I'So" 92

120

94

106

125

93

97

3,761

121

7,460

Nov.

86

87

92

88

78

76

75

68

6670"

78

85

94

109

116

113 

117

123

156

T44

135

140

142

148

152

149

145

155

155

153

3,395

113

6,730

Dec.

159

163

T5S

145

139

162

124

113

109

109

102

94

93

93

112

111 

122

123

126

131

137

142

135

141

146

148

148

148

146

146

150

4,081

132

8,090

Jan.

_

165

10,150

Feb.

_

_

_

-

-

_

_

-

_

115

155

380

371.

410

344

320 

362

311

279

250

222

220

215

.

-

_

_

_

_

_

290

16,100

Calendar year 1956 : Max 4,000 Mln 66

Mar.

_

_

_

_

-

_

_

.

_

-

.

_

_

_

-

-

_

_

-

.

._

_

_

-

274

338

380

425

389

419

_

345

21,210

Apr.

380

317 36"5"

534

666

746

658

658

698

790

800

742

766

855

690

612

556

556

514

478

461

482

500

594

650

702

820

970

1,140

1,140

19,840

661

39,350

May

,190

,150

,160

,380

,610

,790

,720

,360

,110

,070

895

795

805

825

785

965

1,200

2,700

2,370

1,340

1,200

1,170

1,070

1,050

1,300

1,750

2,010

1,880

1,690

1,850

2,600

43,790

1,413

86,860

June

3,250

3,560

3,850

5,940

3,900

3,480

*3,480

3,290

2,560

1,830

1,720

2,040

2,510

2,170

1,770

1,650 

1,680

1,900

2,230

2,280

2,100

2,060

2,140

2,230

2,430'

2,460

2,280

2,190

1,990

1,630

74,580

2,486

147,900

July

1,410

1,240

1,130

1,170

1,190

1,090

970

955

935

920

850

780

738

670

.650

640 

615

*590

545

492

440

407

392

392

371

380

368

353

359

353

547

21,742

701

43,120

Aug.

547

323

311

311

285

253

233

222

213

205

197

188

178

175

183

178 

175

175

170

166

160

156

156

159

156

148

136

129

*122

117

111

6,038

195

11,980

Sept.

106

105

105

106

106

106

105

105

109

116

115

115

112

108

103

105 

106

108

100

92

87

82

78

77

77

76

74

72

74

89

2,919

97.3

5,790

Mean 876 Ac-ft 635,900

Water year 1956-57 : Max 3,940 Mln 66 Mean 559 Ac-ft 404,800

Peak discharge (base, 2,000 cfs). --May 6 (8 p.m.) 2,400 cfs (14.62 ft); May 18 (11 p.m.) 5,610 cfs 

(17.02 ft); June 3 (8 p.m.) 5.060 cfs (16.67 ft); June 13 (8 p.m.) 3,030 efs (15.18 ft); June 25

(10 p.m.) 3,050 cfs (15.20 ft).

* Discharge measurement made on this day.

Note. No gage-height record Jan. 1 to Feb. 9, Feb. 24 to Mar. 25; 

basis of records for station above Big Creek.

oonthly discharge estimated on
SAN JOAQUIN RIVER BASIN 269

Granite Creek near Cattle Mountain, Calif.

Location. Lat 37°31'35", long 119°15'30", in NE^ sec. 5, T. 5 S., R. 25 E., on right 

bank 0.7 mile downstream from confluence of East and West Porks of Granite Creek, 

1.6 miles northwest of Cattle Mountain, and 21 miles northeast of town of Bass Lake.

Drainage area. 47.8 sq mi.

Records available. December 1921 to July 1928, May 1952 to September 1957 (no winter 

records).

Gage. Water-stage recorder. Altitude of gage is 6,800 ft (from topographic map). Prior 

Fo May 14, 1922, staff gage at same site and datum.

Average discharge. 5 years (1922-27), 102 cfs (73,840 acre-ft per year).

Extremes. Maximum discharge recorded during year, 1,920 cfs May 18 (gage height, 8.62 ft); 

minimum recorded, 0.5 cfs Sept. 2, 11, 16.

1921-28, 1952-57: Maximum discharge recorded, 2,210 cfs June 27, 1922 (gage 

height, 8.83 ft); no flow at times during 1924, 1926.

Remarks. Records good except those for periods of no gage-height record, which are fair.

Cooperation. Water-stage-recorder graph and six discharge measurements furnished by 

Southern California Edison Co. in connection with a Federal Power Commission project.

Revisions. WSP 1445: Drainage area.

Rating table, water year 1956-57 (gage height, In feet, and discharge, 

in cubic feet per second)

3.5

3.6

3.7

3.8 

4.O

0.5 

1.0 

1.6 

2.2

4.2 

4.4 

4.6 

5.0 

5.5

6.5

11

19

43

95

6.0 

6.5 

7.0 

7.5

182

305

485

750

8.0 1,210

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

3.2 

2.5

2.3

4.9

17

10

6.5

12

16

*8.8

9.0

10

7.9

6.0

5.0

4.4

3.7

3.4

3.2

2.8

2.5

2.4

2.6

3.6

6.5

9.8

13

11

6.5 

12

2O

228.5

7.37

453

Nov.

18 

18

20

25

30

32

36

40

44

41

33

28

21

16

11

11

9.8

8.3

7

> 6

515.1

17.2

1,020

Dec.

_

-

-

Calendar year : Max

Jan.

-

-

-

Feb.

-

.

-

-

Mln

Mar.

.

-

-

Apr.

130 

110

150

180

220

240

230

210

230

250

260

250

270

281

199

156

118

110

96

85

^6~ 82

96

133

168

2O1

268

357

372" 375

5,913

197

11,730

May

392 

354

412

546

617

688

631

423

322

302

238

190

223

238

216

397

525

1,020

569

278

270

278

250

284

*448

648

726

618

497

595

892

14,087

454

27,940

June

1,O1O 

1,010

1,010

990

902

757

816

655

458

333

413

519

503

395

319

335

371

423

410

*354

312

319

319

312

305

263

221

2O3

165

118

14,520

484

28.8OO

July

91 

JS

69

70

68

60

49

47

43

40

35

29

26

22

20

19

*18

16

13

12

10

9.2

8.1

7.5

6.4

6.2

5.8

5.3

4.8

4.3

4^0

896.6

28.9

1,780

Aug.

3.7 

3.3

3.1

2.8

2.6

2.4

2.3

2.5

4.0

3.8

3.6

3.5

3.3

3.2

2.9

2.7

2.5

2.3

2.0

2.0

1.8

1.6

1.5

1.3

1.3

1.2

i!o

.9

 3

75.0

2.42

149

Sept.

0.6 

.8

.8

.8

.8

.7

.6

.6

.6

.6

.7

.7

.6

.6

.6

iT§~ .5

l!9 1 "g

l!2

1.0

.9

.8

.6

.6

.6

.6

.6

.6

.8

23.6

0.79

47

Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

Mote. Ho gage-height record Nov. 1-8, 20-3O, Apr. 1-11; discharge estimated on basis of 1 discharge measurement and records for Chlqulto Creek near Arnold Meadow and North Fork San Joaquln 

River below Iron Creek.
270 SAN JOAQUIN RIVER BASIN

Florence Lake near Big Creek, Calif.

Location. Lat 37°16' , long 118°58' , in NW^ sec. 1, T. 8 S., R. 27 E., in gatehouse of 

Ward tunnel intake, near dam on South Fork San Joaquin River, 16 miles northeast of 

town of Big Creek.

Drainage area. 171 sq mi.

Records available.--November 1925 to September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Southern 

California Edison Co.).

Extremes. Maximum contents during year, 62,900 acre-ft July 8-10; maximum elevation, 

7,325.95 ft July 9; minimum contents, 311 acre-ft Jan. 4-6 (elevation, 7,225.31 ft). 

1925-57: Maximum contents, 65,700 acre-ft July 16, 1935 (elevation, 7,328.8 ft); 

no available contents Oct. 2-4, 1926, Nov. 30 to Dec. 2, 1927.

Remarks. Lake is formed by multiple-arch concrete dam; storage began in April 1925. 

Usable capacity, 64,400 acre-ft between elevations 7,220.9 (throat of Venturi tube in 

Ward tunnel intake) and 7,327.5 ft (top of spillway drum gates) above mean sea level. 

Additional storage of 168 acre-ft is not available for diversion. Water is diverted 

through Ward tunnel to Huntington Lake and used for power development in Big Creek 

plants. Records, including extremes, show usable contents at 12 p.m.

Cooperation. Record of contents furnished by Southern California Edison Co. in connection 

with a Federal Power Commission project.

Capacity table, water year 1956-57 (elevation, In feet, 

and usable contents, In acre-feet)

7,225

7,230

7,235

7,240

7,245

7,250

7,260

281

887

1,770

2,980

4,670

6,650

11,600

7,270

7,280

7,290

7,300

7,310

7,326

17,800

24,600

32,000

39,900

48,300

63,000

Usable contents, in acre-feet, at 12 p.m., water year October 1956 to September 1957

Day

1 

2

3

4

5

67'

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

43,400 

43, 600

43,800

43,900

44,100

44,300

44,600

44,800

45,100

45,300

45.5OO

45,700

45,900

46,000

46,200

46,300

,46,400

46,600

46,700

46,800

46,900'

47,000

45,800

43, 300

41,300

39,500

37,600

35,600

33,700

31 , 900

30,000

7,287.43

-13,300

Nov.

28,100 

26,200

24,300

22,500

20,200

17,800

15,400

13,000

11,100

9,780

8,380

7,600

7,700

7,770

7,840

7,920

7,740

7,820

7,420

6,510

5,780

5,840

5,560

4,920

5,040

5,050

5,110

5,180

5,230

5,280

7,246 . 62

-24,700

Dec.

5,320 

5,370

4,020

3,520

2,940

2,420

1,900

1,140

571

418

383

373

367

361

356

352

347

343

339

336

332

328

330

328

326

323

323

322

321

320

318

7,225 . 38

-4,960

Jan.

317 

314

313

311

311

311

315

315

314

314

314

343

368

366

366

364

362

361

361

366

366

369

372

372

372

372

372

372

372

372

372

7,225.92

+54

Feb.

372 

372

372

372

372

372

373

373

373

374

398

457

484

471

477

487

482

472

459

448

442

437

437

471

505

512

506

496

-

_______

7,227.01

+124

Mar.

504 

495

481

474

492

518

537

525

515

509

507

500

489

441

398

376

369

359

352

349

348

346

345

347

455

610

794

989

1,190

1,390

1,620

7,234.24

+1,120

Apr.

1,860 

2,050

2.290

2,060

1,540

1,340

1,300

1,290

1,280

1,300

1,320

1,340

1,370

1,460

1,440

1,370

1,300

1,190

1,150

1,080

1,020

983

949

952

952

955

1,020

1,080

1,440

1,620

7,234 . 21

0

May

1,860 

2,110

2,380

2,700

3,160

3,930

4,640

4,860

4,730

4,540

4,250

3,780

3,300

3,270

3,550

3,900

4,430

6,240

7,190

7,280

6,950

6,550

6,100

5,600

5,280

5,430

6,010

6,760

7,270

7,870

9.140

7,255 . 37

+7,520

June

11.500 

14,600

18,300

22,300

26,300

30,000

33,400

36,400

38', 500

39,400

39,900

40,600

41,700

42,700

43,200

43,900

44,800

46,100

47,800

49,700

51,200

52,400

53,600

55,000

56,300

57,400

58,100

58,600

58,800

59.500

7,322.10

+50,200

July

59,900 

6O,400

61,000

61,700

62,300

62,700

62,800

62.900

62,900

62,900

62,700

62,500

62,200

61,800

61,400

61,200

60,900

60,700

60,500

60,200

60 , 000

59,900

59,800

59,600

59,300

59,200

59,000

58,900

58,700

58,600

58,600

7,321.34

--700

Aug.

58.900 

58,800

58, 700

58,600

58,500

58,400

58,200

58,000

57,700

57,500

57,200

57,000

56,700

56,300

56,000

55,600

55,100

54,800

54,600

54,400

54,200

53,900

53,700

53,500

53,300

53,100

52,800

52,400

51,900

51,500

51,200

7,313.34

-7 ,'400

Sept.

51.100 

50,800

50,300

49,800

49,300

48,80O

48,3OO

47,700

47,200

46,700

46,200

45,700

45,000

44,200

43,500

42,900

42,500

42,300

41 , 900

41,300

40, 800

40,200

39, 600

39,000

38,400

37,800

37,200

36,600

36,000

55.500

7,294.53

-15,700

Calendar year 1956.................... * -15,100

Mater year 1956-57.................... t -7,800

t Elevation, In feet, at end of month. 

* Change In contents, In acre-feet.
SAN JOAQUIN RIVER BASIN 271

Ward tunnel at intake, Calif.

Location. Lat 37°16', long 118°58 C , In NWij sec. 1, T. 8 S., R. 27 E., In gatehouse at 

entrance to tunnel.

Records available. April 1925 to September 1957. Prior to October 1936, published as 

"Florence Lake tunnel."

Gage. Water-stage recorder, concrete control, and Venturi meter. Datum of gage is 

7,213.89 ft above mean sea level (levels by Southern California Edison Co.).

Average discharge. 31 years (1925-31, 1932-57), 271 cfs (196,200 acre-ft per year). 

Extremes. 1925-57: Maximum daily discharge, 1,990 cfs Apr. 30, 1926; no flow at times.

Remarks.--Records excellent. Ward tunnel diverts from Florence Lake, a reservoir on 

South Fork San Joaquin River, to Huntington Lake for use in Big Creek powerplants.

Cooperation. Water-stage-recorder graph, one discharge measurement, and rating table 

for Venturi meter furnished by Southern California Edison Co. in connection with a 

Federal Power Commission project.

Revisions. Revised figures of discharge, in cubic feet per second, for high-water

periods in water year 1931, superseding those published in WSP 721, are given herewith:

1931 

May 5 607

733

834

722

682

1931-Con. 

May 10.. 715

735

702

469

Month Maximum

834

Minimum Mean

118

Runoff In 

acre-feet

85,200

Discharge, In cubic feet_per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.1

2.1

2.1

2.1

2.0

2.0 

2.1

2.1

2.3

2.1

2.3

2.1

2.1

2.1

2.1

2.0

2.1

2.1

2.1

2.0

2.0

2.3

688

1.260 

1,040

990

980

1,020

1,000

1,070

1,090

9,184.3

296

18,220

Nov.

1,020

974

974

985

1,130

1.250 

1,230

1.24O

1,010

708

799

442

1.3

1.3

1.3

1.3

134

1.4

209

489

389

1.3

173

316

1.1

34

1.3

.9

1.3

1.3

13,519.8

451

26,820

Dec.

1.3

TT3

628

290

299

297 

313

421

340

126

73

60

56

50

45

42

40

38

36

35

31

28

29

29 

27

27

26

26

25

25

25

3,489.6

113

6,920

Jan.

24

23

22

21

22

18 

20

21

20

20

20

21

37

33

29

29

30

31

32

35

36

36

39

40 

40

40

38

38

38

38

36

927

29.9

1,840

Feb.

36

35

34

33

33

33 

33

34

36

41

49

64

82

85

78

84

86

83

75

68

63

60

61

64 

90

110

1S5

104

-

1,759

62.8

3,490

Mar.

100

104

93

87

90

104 

118

123

T13

102

102

103

92

106

101

95

87

84

78

74

*77

70

68

72 

36

.5

T6" .4

.6

.6

.7

2,282.4

73.6

4,530

Apr.

0.8

.9

.7

281

464

307 

201

200

200

200

201

203

203

206

209

206

204

230

195

192

186

182

178

175 

177

177

178

184

197

210

5,748.4

192

11,400

May

211

227

281

364

428

413 

405

466

535

533

530

575

568

394

254

239

236

152

114

44T

60O

591

579

591 

590

584

595

614

632

645

666

14,053

453

27,870

June

635

630

664

632

628

650 

720

825

839

845

949

1,200

1,160

963

924

810

810

814

820

827

831

90S

961

1,030 

1,230

1,370

1.420

1,410

1,400

1,010

27,909

930

55,360

July

786

663

577

577

577

643 

680

680

682

680

680

680

679

677

620

577

575

516

466

466

413

303

288

323 

323

3*0

320

323

323

323

214

15,954

515

31,640

Aug.

79

241

248

248

248

248 

248

247

247

246

244

244

244

2.11

503

303

303

273

201

201

201

201

201

200 

200

200

200

264

296

295

169

7,320

236

14,520

Sept.

102

226

300

300

300

298 

296

295

295

294

294

339

405

400

400

369

276

150

218

333

327

326

324

323 

323

323

323

320

320

320

9,119

304

18,090

Calendar year 1956: Max 1,630 Mln 0.9 Mean 455 Ac-ft 330,400

Water year 1956-57: Max 1,420 Mln 0.4 Mean 305 Ac-ft 220,700

Discharge measurement made on this day.
272 SAN JOAQUIN RIVER BASIN

South Fork San Joaquin River near Florence Lake, Calif.

Location. Lat 37°16'20", long 118°57'50", in SE£ sec. 36, T. 7 S., R. 27 E., on left 

bank Just downstream from spillway of Florence Lake Dam, and 6 miles upstream from 

Bear Creek.

Drainage area. 171 sq mi.

Records available. December 1921 to September 1957.

Gage. Water-stage recorder, Parshall flume and concrete control. Altitude of gage is 

^,200 ft (from topographic map).

Average discharge. 34 years (1922-31, 1932-57), 302 cfs (218,600 acre-ft per year), combined flow or South Fork San Joaquin River and Ward tunnel at intake.

Extremes. Maximum discharge during year, 12 cfs July 27 (gage height, 9.21 ft); minimum 

 daily, 2.3 cfs May 9, 12, 16, 17, 24-27.

1921-57: Maximum discharge, 4,320 cfs June 6, 1940 (gage height, 15.38 ft); no 

flow at times.

Remarks. Records excellent. Flow regulated by Florence Lake beginning in 1925 (see 

p. 270) and by diversion into Ward tunnel (see preceding page).

Cooperation. Water-stage-recorder graph and two discharge measurements furnished by 

Southern California Edison Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, in cubic feet per second)

8.5 

8.7 

8.9

1.7 

2.4 

4.0 

5.9 

8.0

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

5.6

5.6

5.6

5.6

5.6

5.6

5.7

5.7

5.7

5.7

5.7

5.7

5.8

FTT

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.6

5.6

5.5

 574 5.4

5.4

5.5

5.4

174.4

5.63

346

 Nov.

5.3

5.4

574

5.4

5.3

5.2

5.0

4.9

4.7

4.7

4.6

4.4

4.4

4.4

4.4

4.4

4.4

4.4

4.4

4.4

4.3

4.3

4.3

4.2

T7?

4.2

4.2

4.2

4.2

4.2

137.8

4.59

273

Dec.

4.2

T72

4.1

4.1

4.0

3.9

3.8

3.7

3.6

3.5

3.5

3.5

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

110.7

3.57

220

Jan.

3.4

374

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.7

3.8

¥74

3.4

3.4

3.4

3.4

3.4

3.4

*3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

106.1

3.42

210

Feb.

3.4

374

3.9

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.6

3.7

3.7

3.6

3.6

3.7

3.7

3.6

3.6

3.5

3.6

3.5

3.6

3.6

3.8

3.6 3.7'

3.6

-

99.8

3.56

198

Mar.

3.8

3.7

3.6

3.6

3.7

3.8

3.7

3.6

3.7

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.5

375

3.5

3-. 5

3.5

3.5

3.5

3.6

3.6

3.7

3.8

3.8

3.9

V Q

3 .0

3.8

112.9

3.64

224

Apr.

3.8

3.8

3.9

379

3.8

3.8

3.8

3.8

3.7

3.6

3.4

3.4

3.4

3.4

3.4

3.1

3.0

3.0

3.0

2.9

2.8

27?

2.9

2.9

2.8

2.8

2.8.

2.8

3.0

2.9

98.5

3.28

195

May

2.9

3.0

3.0

3.0

3.0

3.1

37T

2.8

2.3

274

2.4

2.3

2.4

2.6

2.4

2.3

2.3

3.1

2.8

2.6

2.4

2.4

2.4

2.3

2.3

2.3

2.3

2.4

2.4

2 .4

2.4

79.8

2.57

158

June

2.5

2.6

2.6

3.0

3.6

3.8

3.8

3.9

4.1

4.1

4.1

4.1

4.2

4.2

4.2

4.2

4.2

4.3

4.3

4.4

4.7

5.0

5.2

5.3

K73

5.3

5.3

5.3

5.2

5.2

128.0

4.27

254

July

5.2

5.2

5.3

5.3

5.4

5.4

5.4

5.4

5.4

5.3

5.4

5.3

5.3

5.3

5.3

6.1

7.6

776

7.6

7.6

7.6

7.5

7.5

7.5

*7.6

7.6

7.6

7.5

7.5

7.5

7.5

199.3

6.43

395

Aug.

7.5

7.5

7.3

6.8

6.8

6.8

6.8

6.8

6.6

6.3

6.2

6.2

6.2

6.2

6.1

6.1

6.0

670

6.2

6.2

6.2

6.4

6.4

6.2

6.1

6.1

6.1

6.1

6.1

6.0

6 .0

198.3

6.40

393

Sept.

5.9

5.9

5.8

5.7

5.6

6.1

 674 6.4

6.4

6.4

4.5

3.3

3.3

3.3

3.3

3.3

3.4

3.4

3.4

3.3

5.3

3.3

3.3

3.2

3.2

3.2

3.1

T7T

3.3

3.1

127.2

4.24

252

Calendar year 1966: Max 1,850 Min 3.0 Mean 54.0 Ae-ft 39,200

Water year 1956-57: Max 7.6 Mln 2.3 Mean 4.31 Ae-ft 3,120

Discharge measurement made on this day
SAN JOAQUIN RIVER BASIN 273

Bear Creek near Lake Thomas A. Edison, Calif.

Location. Lat 37°20'20 , long 118°58'20", in SW£ sec. 12, T. 73., R. 27 E. (unsurveyed), 

on right bank 0.2 mile upstream from diversion dam,1.7 miles upstream from mouth, 

2.1 miles south of Lake Thomas A. Edison, and 2.4 miles northeast of Mono Hot Springs.

Drainage area. 53.5 sq mi.

Records available. October 1921 to September 1957. Prior to October 1954, published as 

"near Vermilion Valley."

Gage.--Water-stage recorder. Altitude of gage is 7,400 ft (from topographic map).

Average discharge . 36 years, 88.2 cfs (63,850 acre-ft per year).

Extremes. Maximum discharge during year, 1,160 cfs June 4 (gage height, 6.37 ft); minimum not determined, occurred during period of ice effect.

1921-57: Maximum discharge, 1,680 cfs July 26, 1956 (gage height, 7.12 ft); minimum recorded, 1.2 cfs Sept. 29 to Oct. 5, 1924.

Revisions. The maximum discharge for the water years 1922-30, published in WSP 1345 

have been found to be in error and should not be used.

Remarks. Records good except those for periods of ice effect, which are fair. No storage 

or diversion above station.

Cooperation. Water-stage-recorder graph and 12 discharge measurements furnished by

Southern California Edison Co. in connection with a Federal Power Commission project.

Revisions (water years).--WSP 611: 1922(M). WSP 1345: 1931-35. Revised figures of discharge for the water years 1922-30 as published in WSP 1345, have been found to be 

in error and should not be used. Figures of discharge as originally published for 

these years are considered correct on basis of further study with the exception of 

those for June 1922. Revised figures of discharge, in cubic feet per second, for 

June 1922, superseding those published in WSP 551, are given herewith:

Date

1932

June 1

2

3

4

5

6

Discharge

421

434

564

647

671

665

Date

1922-Con.

June 7

8

9

10

11

12

Discharge

630

569

480

430

426

439

Date

1922-Con.

June 13

14

15

16

17

18

Discharge

408

353

434

515

564

569

Date

1922-Con.

June 19

20

21

22

23

24

Discharge

602

635

586

525

500

525

Date

1922-Con.

June 25

26

27

28

29

30

Discharge

591

607

574

500

457

434

Month

Water year 1921-22...... 

Calendar year 1922......

Maximum

671 

671

Minimum

6.5

Mean

113 

115

Runoff in 

acre-feet

81,900 

83,200

Rating table, water year 1956-57, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

3.1

3.2 

3.4 

3.8

6.5

10

24

70

4.2 

4.6 

5.0 

6.0

133

227

367

920

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17IB19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

40

36

35

34

35

37

43

47

43

40

40

37

35

 33

30

28

26

25

24

23

22

20

17

21

26

21

20

15

T5

20

16

904

29.2

1,790

Nov.

2O

22

22

21

20

20

20

20

20

19

18

17

16

13

16

17

15

13

11

12

17

14

13

12

12

12

11

10

TT

10

474

15.8

940

Dec.

9.3

9.7

9.7

9.3

9.0

7

8

10

14

14

14

15

14

13

12

11

11

10

9

8

8

7

8

7

7

7

6

7

7

7

7

295.0

9.52

585

Calendar year 1956: Max 764

Jan.

6

6

6

6

6

5

5

5

5

5

6

6

7

7

7

7

7

7

9

11

11

11

12

12

12

12

12

12

12

11

11

257

8.29

510

Feb.

12

12

12

12

12

12

12

11

12

13

16

19

26

21

21

24

22

22

20

20

17

17

19

28

29

30

29

27

527

18.8

1,050

Mar.

25

24

23

21

23

27

31

32

27

27

26

25

25

24

23

20

24

21

19

18

18

18

20

19

24

22

26

29

28

28

36.

753

24.3

1,490

Apr.

36

30

36

50

64

63

57

62

66

70

67

63

70

76

57

50

48

50

48

44

44

46

48

56

53

54

66

84

95

89

1,742

58.1

3,460

May

96

108

126

154

183

198

180

148

129

120

105

101

90

95

105

113

 131

186

158

119

117

108

95

95

119

173

239

274

 257

267

351

4,740

153

9,400

June

480

609

 752

824

8TB

734

716

662

490

323

297

 376

 415

376

312

290

327

410

485

505

 450

435

470

521

587

614

554

516

455

384

15,187

506

30,120

July

320

270

242

254

274

257

221

207

210

188

176

165

156

133

133

135

133

126

113

100

88

80

75

 75

75

77

73

73

73

73

72

4,647

150

9,220

Aug.

73

70

67

66

61

56

50

48

46

43

40

37

36

35

35

35

35

35

 34

34

33

32

32

32

31

28

25

24

23

22

20

1,238

39.9

2,460

Sept.

19

18

17

17

17

17

16

16

16

17

18

18

18

18

17

15

18

20

18

 16

15

13

13

12

 12

11

10

 10 9.3

16

467.3

15.6

927

Min 6 Mean 141 Ac-ft 102,100

Water year 1956-57: Max 824 Min 5 Mean 85.6 Ac-ft 61,950

Peak discharge (base, 440 cfs) . June 4 (7:30 p.m.) 1,160 cfs (6.37 ft); June 25 (11 p.m.) 800 cfs

(5.80 ft) .

* Discharge measurement made on this day.

Note . --Stage-discharge relation affected by ice Oct. 26 to Nov. 8, Dec. 6 to Feb. 19.
274 SAN JOAQUIN RIVER BASIN

Lake Thomas A. Edison near Big Creek, Calif.

Location. Lat 37°22'10", long 118°59'15", in sec. 26, T. 6 S., R. 27 E. (unsurveyed), 

in outlet works of dam on Mono Creek at lower end of Vermilion Valley, 18.1 miles 

northeast of town of Big Creek.

Drainage area. 88.9 sq mi.

Records available. October 1954 to September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Southern 

California Edison Co.).

Extremes. Maximum contents during year, 125,100 acre-ft July 4, 6-8; maximum elevation, 

7,642.52 ft July 4, 6; minimum contents, 78,100 acre-ft Mar. 24-27; minimum elevation, 

7,615.85 ft Mar. 25, 26.

1954-57: Maximum contents, 125,150 acre-ft Aug. 4, 1956, July 4, 6-8, 1957; maximum elevation, 7,642.55 ft Aug. 4, 1956; minimum (since appreciable storage was 

attained), 23,100 acre-ft Mar. 21, 22, 1956.

Remarks. Lake is formed by earth-fill dam; dam completed and storage began on Oct. 12, 

1954. Usable capacity, 125,000 acre-ft between elevations 7,508.9 ft (invert of outlet works) and 7,642.5 ft (top of gates in service spillway) above mean sea level. 

Water is released for diversion to Ward tunnel via Mono Creek diversion works. 

Records, including extremes, show usable contents at 12 p.m.

Cooperation. Record of contents furnished by Southern California Edison Co. in connection 

with a Federal Power Commission project.

Capacity table, water year 1956-57 (elevation, in feet, 

and usable contents, in acre-feet)

7,615

7,620

7,630

7,643

76,70O 

85,000 

102,400 

126,OOO

Usable contents, In thousands of acre-feet, at 12 p.m., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16'

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

M(*)

Oct.

106.1

1O6.2

106.3

106.4

106.4

106.5

106.5

106.6

106.7

106.8

106.8

106.8

106.9

106.9

106.9

106.9

107.0

107.0

107.0

106.9

106.0

105.0

104.5

104.1

103.5

102.9

102.2

101.5

100.8

100.3

9.9.6

7,628.42

-6,500

Nov.

98.9

98T3"

97.6

97 .O

96.6

96.4

96.3

96.1

95.9

95.6

95.4

95.3

95.3

95.3

95.3

95.4

95.3

95.3

95.1

94.9

94.7

94.5

94.3

94.0

93.8

93.6

93.3

^3T3

93.3

93.3

7,624.82

-6,300

Dec.

93.3

93.3

93.0

92.8

92.6

92.3

92.0

91.7

91.4

91.0

90.6

90.2

89.7

89.3

88.8

88.7

88.7

88.7

88.7

88.5

87.9

87.4

87.1

86.9

86.2

85.4

84.7

84.0

83.3

82.6

81.8

7,618.12

-11,500

Jan.

81.1

80.5

80.5

80.5

80.5

8O.5

8O.6

8O.5

80.5

80.5

80.5

80.6

80.6

80.6

80.6

80.6

80.6

80.6

80.7

80.6

80.6

80.6

80.6

80.6

80.6

80.6

80.5

80.5

80.5

80.5

80.5

7,617.32

-1,300

Feb.

80.5

80.5

80.4

80.4

80.4

80.4

80.3

80.3

80.3

80.3

80.3

80.3

8O.3

80.3

80.3

80.4

80.5

80.5

80.6

80.6

80.7

80.7

81.0

81.1

81.2

81.3

81.4

81.5

-

7,617.93

-1-1,000

Mar.

81.6

81.6

81.7

BTTf

81.7

81.6

81.6

81.6

81.5

81.5

81.5

81.5

81.2

80.9

80.7

80.4

80.1

79.9

79.7

79.1

78.6

78.4

78.2

78.1

TsTT

78.1

78.1

78.2

78.4

78.4

78.5

7,616.14

-3,000

Apr.

78.6

787T

78.7

78.7

78.7

78.8

78.9

79.0

79.0

79.2

79.4

79.7

79.9

80.2

80.4

80.5

80.5

80.7

80.6

80.6

80.5

80.5

80.4

80.3

80.4

80.6

80.8

81.1

81.5

81.8

7.618J09

-(-3,300

May

82.1

8275

82.8

83.3

84.0

84.6

85.3

85.8

86.3

86.8

87.3

87.6

88.1

88.2

88.0

87.9

87.8

88.1

88.2

88.1

87.9

87.6

87.2

86.8

86.6

86.5

86.7

87.3

87.6

88.1

89.0

7,622.36

-(-7,200

June

90.6

9272

93.9

96.1

98.2

10O.O

101.9

103.8

105.4

106.2

106.7

107.8

109.1

110.2

111.0

111.6

112.3

113.5

115.0

116.4

117.5

118.3

119.2

120.2

121.4

122.3

122.9

123.5

124.1

124.4

7.642J3

-(-35,400

July

124.5

124.7

124.9

125.1

125.0

125.1

125.1

125.1

125.0

124.9

124.8

124.6

124.3

123.9

123.5

123.2

123.0

122.6

122.3

121.8

121.3

120.8

120.3

119.9

119.5

119.1

118.8

118.3

117.9

117.5

117.2

7,638.26

-7,200

Aug.

117.1

116.6

116.2

115.8

115.3

114.8

114.3

113.8

113.6

113.0

112.3

111.8

111.2

110.7

110.2

109.7

109.2

108.7

108.5

108.2

107.9

107.6

107.3

107.0

106.6

106.3

105.9

105.6

105.2

104.9

104.5

7,631.22

-12,700

Sept.

1O4.2

1O3.9

1O3.6

103.3

102.9

102.6

102.3

102.0

101.6

101.3

101.0

100.6

100.2

99.8

99.4

99.0

98.7

98.4

98.0

97.7

97.3

96.9

96.6

96.2

95.8

95.4

95.0

94.6

94.3

94.0

7,625.21

-10,500

Calendar year 1956.................... * +32,200

Water year 1956-57.................... * -12,100

t Elevation, in feet, at end of month. 

* Change In contents, in acre-feet.
SAN JOAQUIN RIVER BASIN 275

Mono Creek below Lake Thomas A. Edison, Calif.

Location. Lat 37°21'40", long 118°59'25", in Sw£ sec. 35, T. 63., R. 27 E. (unsurveyed), on left bank 0.6 mile upstream from diversion dam, 1 mile downstream from Lake

Thomas A. Edison, and 1.9 miles northeast of Mono Hot Springs. 

Drainage area. 92.0 sq mi. 

Records available.--November 1921 to September 1957. Prior to October 1954, published as

"near Vermillion Valley."

Gage. Water-stage recorder. Altitude of gage is 7,400 ft (from topographic map). 

Iverage discharge. 33 years (1922-30, 1932-57), 150 cfs (108,600 acre-ft per year),

adjusted for storage. 

Extremes. Maximum discharge during year, 702 cfs June 26-27 (gage height, 6.93 ft); minimum daily, 11 cfs Oct. 2-12.

1921-57: Maximum discharge, 1,760 cfs June 2, 1938 (gage height, 8.62 ft); minimum daily, 0.3 cfs Nov. 11, 12, 1954. 

Remarks. Records good. Flow regulated by Lake Thomas A. Edison beginning Oct. 12, 1954

(see preceding page). No diversion. 

Cooperation. Water-stage-recorder graph and 23 discharge measurements furnished by

Southern California Edison Co. in connection with a Federal Power Commission project. 

Revisions (water years). WSP 1011: 1943. Revised figures of discharge, in cubic feet

per second, for the water year 1956, superseding those published in WSP 1445, are given

herewith:

Date

1956

July 13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Pis charge

1,170

1,200

1,150

1,070

609

20

14

14

13

13

545

1,000

740

350

446

592

Date

1956-Con.

July 29

30

31

Aug. 1

2

3

4

5

6

7

8

9

10

11

12

13

Discharge

586

466

138

59

259

164

98

219

274

373

392

316

152

204

382

397

Date

1956-Con.

Aug. 14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

Discharge

402

382

382

402

387

402

402

411

416

421

426

426

426

426

436

446

Date

1956-Con.

Aug. 30

31

Sept. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

Discharge

431

436

451

456

456

451

451

451

451

451

399

18

16

16

12

11

Date

1956-Con.

Sept. 15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Discharge

11

11

11

11

11

11

11

11

11

11

11

16

21

21

16

13

Month

July 1956 .............................

Water year 1955-56 ..................

Cfs-days

16 , 248

10,749

4,298

65,290

Runoff in Maximum Minimum Mean acre-feet

1,200 13 524 32,230

446 59 347 21,320

456 11 143 8,520

1,200 11 178 129,500

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

12

11

11

11

11

11

11

11

11

11

11

11

12

12

12

12

12

12

12

70

456

456

236

 201

307

337

337

337

337

337

337

3,965

128

7,860

Nov.

337

337

 337

337

 192

126

126

126

126

126

126

85

18

14

13

12

102

22

80

113

123

124

126

178

*128

119

140

37

16

 14

3,760

125

7,460

 

Dec.

12

16

183

133

126

150

163

155

161

249

a240

a220

a250

a260

a270

a70

a20

«a20

16

169

253

282

110

149

329

351

351

*368

361

362

365

6,164

199

12,230

Jan.

355

262

16

15

15

15

15

15

15

15

15

69

41

15

15

15

32

15

33

116

34

34

34

34

34

35

32

32

32

32

32

1,469

47.4

2,910

Feb.

34

36

34

34

34

34

37

61

3.6

36

73

58

61

*44

16

18

16

15

15

15

15

15

15

16

16

15

15

15

-

829

 29.6

1,640

Calendar year 1956: Max 1,200 Min 11

Mar.

15

15

49

58

107

41

58

48

69

48

48

92

169

162

169

171

172

160

129

290

238

111

111

111

58

13

13

13

13

13

13

2,777

89.6

5,510

Apr.

13

T3

64

83

94

18

13

113

50

14

14

14

14

14

14

14

173

28

139

114

96

122

119

124

14

 14

14

14

14

15

1,559

52.0

3,090

May

15

15

15

15

15

15

15

15

15

15

15

15

15

161

274

*270

270

216

270

320

337

324

364

364

337

303

237

155

 216

119

4,914

159

9,750

June

15

34

179

51

100

133

126

89

63

183

224

91

*67

99

 169

225

193

92

69

73

151

243

270

266

255

 469

532

402

406

466

5,795

193

11,490

July

378

295

295

316

441

318

346

307

 333

337

346

368

355

378

378

347

*337

337

*318

355

373

364

333

303

290

295

299

316

299

311

200

10,268

331

20,370

Aug.

204

290

290

290

303

*303

307

316

169

337

337

337

337

295

278

 299

303

266

195

195

195

195

195

195

195

192

192

192

192

192

192

7,778

251

15,430

Sept.

192

192

186

180

180

180

180

180

180

180

180

189

*210

214

195

195

*195

195

198

198

198

198

198

198

198

 198

195

195

195

192

5,764

192

11,430

Mean 201 Ac-ft 145,600

Water year 1956-57: Max 532 Min 11 Mean 151 Ac-ft 109,200

 Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and Information 

about valve changes in the dam at Lake Thomas A. Edison as furnished by Southern California Edison 

Co.

5105Z9 0-59-19
276 SAN JOAQUIN RIVER BASIN

Jackass Creek near Jackass Meadow, Calif.

Location. Lat 37 0 29'10", long 119°18'20", in NE£ sec. 23, T. 53., R. 24 E., on left 

bank 1.6 miles east of Jackass Meadow, 10 miles upstream from West Fork, and 18 miles 

northeast of town of Bass Lake.

Drainage area. 12.8 sq mi.

Records available.--December 1921 to July 1928, November 1951 to September 1957 (no winter records).

Gage. Water-stage recorder. Altitude of gage is 6,900 ft (from topographic map). Prior 

fo May 5, 1922, staff gage at same site and datum.

Average discharge.--5 years (1922-27), 19.1 cfs (13,830 acre-ft per year).

Extremes. Maximum discharge recorded during year, 564 cfs May 18 (gage height, 10.48 ft); 

no flow during several months.

1921-28, 1951-57: Maximum discharge recorded, 786 cfs Dec. 23, 1955 (gage height, 

11.37 ft); no flow at times.

Remarks. Records fair. No storage or diversions.

Cooperation. Water-stage-recorder graph and seven discharge measurements furnished by 

Southern California Edison Co. in connection with a Federal Power Commission project.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Nov. 30 Apr. 1 to Sept. 30

4.95 0 4.95 0 6.0 20

5,0 .1 5.0 .1 6.5 50

5.1 .6 5.2 1.4 7.0 87

5,2 1.6 5.3 2.6 8.0 179

5.3 2.8 5.5 5.6 9.0 307

5.7 9.7

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

**.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.3

.4

73

.2

.2

.2

4.5

0.15

8.9

Nov.

0.3

.3

.3

.8

1.5

2.2

2.7

273

2.4

2.2

1.9

1.7

1.5

1.3

.9

.7

.7

.6

.4

.3

.2

.2

.2

.2

.2

.2

**.!

.1

.1

.1

26.6

0.89

53

Dec. Jan. Feb.

-

Mar.

tio

Apr.

33

29

53

56

66

66

58

58

60

66

65

63

65

*74

63

53

40

36

42

33

33

36

42

55

58

63

73

87

95

106

1,713

57.1

' 3,400

May

100

*93

93

107

112

117

120

93

72

65

56

51

52

56

56

67

76

261

236

104

105

97

85

79

91

97

97

103

91

91

95

3,018

97.4

5,990

June

97

89

84

75

65

58

57

47

43

35

35

37

38

28

26

22

22

22

*22

19

17

16

14

12

11

10

8.6

7.6

6.9

5.8

1,029.9

34.3

2,040

July

4.8

4.2

3.7

3.3

2.9

2.9

2.0

2.4

2.0

1.6

1.4

1.2

1.1

.9

*.8

.7

.5

.3

.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

39.3

1.27

78

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

1.4

0.05

2.8

Sept.

0

0

0

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement or observation of no flow made on this day. 

t Result of discharge measurement.

** Field estimate made on this day.
SAN JOAQUIN RIVER BASIN 277

Chiquito Creek near Arnold Meadow, Calif.

Location.--Lat 37°24'45", long 119°22'50", in NE£ sec. 18, T. 63., R. 24 E., on right 

bank 0.5 mile downstream from Beasore Creek, 0.6 mile southwest of Arnold Meadow, 

and 12 miles northeast of town of Bass Lake.

Drainage area.--59.6 sq mi.

Records available . September 1921 to June 1928, November 1951 to September 1957 (no 

winter records except 1955 and 1957).

Gage. Water-stage recorder. Altitude of gage is 4,800 ft (from topographic map). Prior 

Fo Apr. 30, 1922, staff gage at same site and datum.

Average discharge.--8 years (1921-27, 1954-55, 1956-57), 

year).

).3 cfs (58,130 acre-ft per

Extremes. Maximum discharge during year, 1,910 cfs May 19 (gage height, 9.76 ft); minimum, 5.3 cfs Sept. 8-14.

1921-28, 1951-57: Maximum discharge, 8,630 cfs Dec. 23, 1955 (gage height, 

16.38 ft); minimum, 1.4 cfs Aug. 27-31, 1924.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. No storage or diversion.

Cooperation. Water-stage-recorder graph and 11 discharge measurements furnished by 

Southern California Edison Co. in connection with a Federal Power Commission project. pro

Rating table, water year 1956-57, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

4.6

4.7

4.8

4.9

5.0 

5.2

5.5

6.0 

6.5 

7.0 

8.0

91

185

325

510

940

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

9.0

8.6

876

20

20

11

13

14

12

11

12

12

10

10

10

9.5

*9.5

9.5

9.0

9.0

8.6

8.6

9.5

12

13

15

17

15

13 

17

20

376.4

12.1

747

Nov.

17

17

18

18

19

21

20

20

20

19

17

16

15

14

13

 13

13

13

12

11

12

12

12

12

12

12

12

11

11

11

443

14.8

879

Dec.

11

10

To

12

15

13

b!2

b!3

b!4

15

17

20

22

21

22

21

17

16

15

16

 16

b!6

b!6

16

17

16

b!5

blS

15 

15

15

484

15.6

960

Calendar year 1956: Max -

Jan.

14

Is- 13

is

14

14

15

14

b!6

17

16

22

52

32

26

26

25

23

22

21

b20

b!8

19

18

17

17

16

16

16

15

15

595

19.2

1,180

Feb.

16

16

14

14

13

13

13

13

13

22

52

»54

60

56

51

57

57

52

48

44

44

44

72

94

136

115

101

91

1,375

49.1

2,730

Mar.

88

86

78

75

91

108

112

105

98

91

*88

93

85

81

81

80

72

68

68

69

72

71

72

80

88

93

103

108

117

121

U9

2,761

89.1

5,480

Apr.

115

115

126

161

188

195

165

167

183

188

183

181

181

*195

165

145

115

100

110

90

SB- 85

90

100

105

110

124

147

159

145

4,218

141

8,370

May

197

161

 179

192

200

202

195

179

171

171

169

161

161

171

165

165

169

401

621

192

179

173

163

157

155

163

165

161

155

149

157

5,999

194

11,900

June

163

163

163

159

151

145

141

141

145

141

155

151

149

141

132

124

117

115

113

108

105

103

98

96

91

86

81

75

72

65_

3,689

123

7,320

July

62

5S

56

52

49

47

44

43

40

36

34

31

28

26

24

22

22

21

19

19

18

17

17

17

16

15

15

14

14

13

13

902

29.1

1,790

Aug.

13

12

12

12

11

11

11

10

10

10

9.5

9.0

9.0

*9.0

8.6

8.6

8.2

8.2

.8

.8

.4

~.0

.0

.0

.0

277.1

8.94

550

Sept.

7.0

6.6

6.6

6.2

6.2

5.9

5.9

5.6 5~6

5.6

5.6

5 6

5.6

5.6

5.6

5.6

9.0

10

*8.2

7.4

7.0

6.6

6.2

5.9

5.9

5.9

5.9

 5.9

5.9

8.6

193.2

6.44

383

Min - Mean - Ac-ft -

Water year 1956-57: Max 621 Min 5.6 Mean 58.4 Ac-ft 42,290

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice. 

Note. No gage-height record Jan. 26 to Feb. 

ords for San Joaquin River above Big Creek.

7, Apr. 15-25; discharge estimated on basis of rec-
278 SAN JOAQUIN RIVER BASIN

San Joaquln River above Big Creek, Calif.

Location (revised).--Lat 37°14 I 15", long 119°19'50", In NE£ sec. 15, T. 83., R. 24 E., 

on left bank 0.8 mile upstream from Ross Creek and 2.3 miles upstream from Big Creek.

Drainage area. 1,042 sq ml.

Records available . March 1922 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 2,500 ft (from topographic map).

Average discharge.--32 years (1925-57, period since diversion began through Ward tunnel), 

1,329 cfs (962,200 acre-ft per year).

Extremes. Maximum discharge during year, 17,000 cfs May 19 (gage height, 17.41 ft); mlnimum daily, 106 cfs Sept. 27-30.

1922-57: Maximum discharge, 63,000 cfs Dec. 23, 1955 (gage height, 24.75 ft), 

from rating curve extended above 14,000 cfs on basis of computation of peak flow over 

dam; minimum daily, 52 cfs Sept. 24, 1931.

Remarks. Records good. Flow partly regulated by Florence Lake (see p. 270) and diverslons through Ward tunnel (see p. 271) beginning in 1925.

Cooperation.--Water-stage-recorder graph and 22 discharge measurements furnished by

Southern California Edison Co. in connection with a Federal Power Commisiion project.

Revisions. WSP 766: Drainage area.

Rating table, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

6.1 

6.4 

6.7

137

187

246

319

7.5 470

8.0 685

9.0 1,200

1O.O 1,810

97

124

213

331

485

8.0

9.0

11.0

13.0

15 ."0

675

1,130

2,650

5,140

9,160

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-rt

Oct.

293

276

267

293

306

a260

a260

a310

a300

a280

a340

a310

a290

a270

*a260

246

236

229

211 

189

173

T73

177

205

*192

*223

233

258

225

220

541

7,846

253

15,560

Nov.

279

271

264

264

279

303

311

319

335 335"

314

291

269

248

221

*209

231

231

200 

165

172

292

178

173

167

163

167

168

160

158

7,137

238

14,160

Dec.

163

158

155

178

279

281

194

203

221

242

*248

264

276

283

260

238

231

219

211 

201

194

187

187

196

182

173

172

172

178

178

178

6,502

210

12,900

Jan.

172

167

163

162

167

172

156

170

»150

148

»170

216

1,150

497

332

296

283

271

267 

291

279

267

276

262

248

262

231

231

231

231

223

8,141

263

16,150

Feb.

244

251

240

233

231.

*236

248

329

332

319

660

860

935

925

790

840

875

775

694 

622

568

609

1,340

1,660

2.610

1,570

1,210

1,100

-

21,306

761

42,260

Mar.

1,070

1,020

962

876

953

1,170

1,180

*1,160

1,150

1,030

971

1,050

971

872

822

854

768

747

695

671

687

643

623

635

715

747

863

976

1,050

1,100

1,100

28,131

907

55,800

Apr.

1,080

944

*94?

1,200

*1,570

1,790

1,690

1,590

1,580

1,750

1,830

.1,710

1,720

1,950

1,730

1,520

1,350

1,450

1,330 

1,300

1,140

1,240

1,240

*1,420

1,620

1,670

1,810

2,050

2,460

2,490

47,172

1,572

93,560

May

2,580

2,490

2,340

2,770

3,150

3,500

*3,690

3,100

2,240

2,260

1,910

1,910

1,930

1,760

1,700

1,950

2,420

5,330

7,260 

3,760

3,100

3,020

2,690

2,410

2,670

3,450

3,930

3,760

3,450

3,240

4,180

93,950

3,031

186,300

June

5,060

5,490

5,900

6.060

5,990

5,490

»5,160

5,110

4,320

3,110

2,750

3-, 180

3,630

3,460

2,800

2,500

2,500

2,710

3,120 

3,210

3,030

2,850

3,000

3,140

3,310

3,530

3,660

3,290

3,140

2,640

113,140

3,771

224,400

July

.190

,780

,510

,460

,500

» ,570

,330

,260

,180

,130

* ,090

,010

948

881

818

800

*768

731

679 

623

567

527

496

485

468

*457

457

438

435

432

426

28,446

918

56,420

Aug.

426

411

393

384

381

351

326

307

296

292

284

270

256

*245

243

249

243

241

238 

232

226

219

213

213

213

211

203

185

172

163

160

8,246

266

16,360

Sept.

153

142

138

134

*136

134

134

132

132

134

142

144

144

142

136

132

156

174

167 

148

130

117

111

109

107

107

106

106

106

106

3,959

132

7,850

Calendar year 1956: Max 8,210 Min 155 Mean 1,935 Ac-ft 1,406,000

Water year 1956-57: Max 7,260 Mln 106 Mean 1,025 Ac-ft 741,700

Peak discharge (base, 4,600 cfs). May 19 (1:30 a.m.) 17,000 cfs (17.41 ft); June 3 (12 p.m.) 

7.750 cfs (14.38 ft).___________________________________________________________

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, recorded r 

in stage, and records for nearby stations.
SAN JOAQUIN RIVER BASIN 279

Ward funnel at outlet, Calif.

Location.--La t 37° 15'15", long 119°I09'35", in SWi; sec. 5, T. 8 S., R. 26 E., at tunnel 

outlet at east end of Huntingtonj Lake, 6 miles northeast of Big Creek.

Records available.--November 1927 t;o September 1957.

Gage.--Water-stage recorder until May 23, 1956, none thereafter. Datum of gage was 

6,999.00 ft above mean sea level (levels by Southern California Edison Co.).

Average discharge.--29 years (1928-57), 457 cfs (330,900 acre-ft per year).

Extremes.--1927-57: Maximum daily discharge, 2,080 cfs June 21, 1935; minimum daily, 

 0.4 cfs Dec. 7, 1945.

Remarks.--Records fair. Daily discharge computed as the sum of Ward tunnel at intake, 

Mono-Bear conduit, and Camp Creek conduit. Tunnel diverts from Florence Lake to 

Huntington Lake, receives diversions from Bear and Mono Creeks and at times from 

several other small tributaries of South Fork San Joaquin River. See record for Ward 

tunnel at intake (see p. 271).

Cooperation.--Forty-eight discharge measurements and discharge of Camp Creek conduit

furnished by Southern California Edison Co. in connection with a Federal Power Commission project.

Revisions. Revised figures of discharge, in cubic feet per second, for the water year 

1956, superseding those published in WSP 1445, are given herewith:

Date

1956

Sept. 10

11

1Z

13

14

15

16

Discharge

3

3

3

3

3

3

3

Date

1956-Con.

Sept. 17

18

19

20

21

22

23

Discharge

3

3

3

3

3

3

3

Date

1956-Con.

Sept. 24

25

26

27

28

29

30

Discharge

3

3

3

3

3

3

3

Month

Water year 1955-56 .......

Cfs-days

267,568

Maximum

1,970

Minimum

2

Mean

731

Runoff in 

acre-feet

530,700

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26 

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

3

T

3

3

3

3 

3

3

3

3

3

3

3

3

3

3

3

3

3

49

478

460

939

1,480 

1,370

,350 

,340

,370

,350

,420

,440

13,103

423

25,990

Nov.

1,380

1,330

1,330

1,340

1,340

1,400 

1,380

1,390

1,160

853

943

544

35

28

^

1

251

36

300

614

529

139

312

506 

141

165 

152

48

28

25

17,701

590

35,110

Dec.

11

1

821

43T

434

454 

484

586

515

389

327

295

320

322

327

123

71

68

61

212

292

317

146

186 

363

385 

383

401

393

394

397

9,901

320

19,660

Jan.

388

294

47

45

46

41 

43

44

43

43

44

99

88

58

54

54

72

56

77

165

84

84

88

89 

88

89 

84

84

84

83

81

2,739

88.4

5,430

Feb.

84

85

82

81

81

81 

84

118

86

92

1/2

146

TB"8 176

122

133

130

126

116

108

100

96

99

112 

138

158 

152

149

-

3,235

116

6,420

Mar.

142

145

167

168

222

174 

210

206

212

180

179

223

289

295

296

289

286

268

229

585

336

202

202

205 

121

49 

43

47

46

47

56

5,919

191

11,740

Apr.

55

108" 50

422

654

401 

284

388

530

500

500

299

509

520

500

287

441

526

395

561

557

561

546

568 

259

262 

281

315

534

549

9,520

517

18,880

May

5~52~ 562

468

588

689

697 

667

685

728

710

681

718

701

678

660

657

684

654

607

921

,090

,060

,070

,090 

,090

,120 

,140

,110

,170

,110

,190

25,167

812

49,920

June

1,150

1,190

1,280

1,200

1,220

1,220 

1,520

1,400

1,570

1,580

1,500

1,680

1,650

1,480

1,450

1,360

1,360

1,320

1,550

1,370

1,400

1,460

1,500

1,560 

1,750

1,870 

1,850

1,840

1,850

1,470

45,760

1,459

86 , 800

July

1,290

1,200

1,120

1,150

1,120

1,150 

1,190

1,200

1,250

1,210

1,210

1,220

1,190

1,190

1,130

1,060

1,050

977

798

922

875

748

696

701 

688

692 

692

712

695

707

467

30,280

977

60,060

Aug.

556

601

605

604

612

607 

605

611

462

626

621

618

617

607

616

657

641

BT5

450

450

429

428

427

426

425

419 

417

480

511

509

381

16,555

527

52 , 400

Sept.

45S" 515

505

497

497

495 

492

491

491

491

492

546

655

652

612

579

489

565

554

547

540

537

555

555 

553

552 

528

524

525

528

15,250

508

50,250

Calendar year 1956: Max 1,970 Mln 1 Mean 744 Ac-ft 540,200

Water year 1956-57: Max 1,870 Min 1 Mean 529 Ac-ft 382,700

Note. Record computed as the sum of Ward tunnel at intake plus inflow to tunnel.
280 SAN JOAQUIN RIVER BASIN

Huntington Lake near Big Creek, Calif.

Location. Lat 37°14', long 119°13', in SWir sec. 14, T. 8 S. , R. 25 E. , in gate tower of 

dam 1 on Big Creek and 2 miles northeast of town of Big Creek.

Drainage area. 79.0 sq mi.

Records available . 1913 to 1926 (summary of yearly contents in WSP 881), October 1926 to 

September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Southern Calif'ornia Edison Co.).

Extremes.--Maximum contents during year, 88,300 acre-ft Aug. 18 (elevation, 6,949.39 ft); 

minimum, 29,900 acre-ft Apr. 4 (elevation, 6,898.93 ft).

1913-57: Maximum contents, 90,300 acre-ft May 23, 1926 (elevation, 6,950.8 ft); 

minimum, 2,180 acre-ft Mar. 8, 1935 (elevation, 6,839.0 ft).

Remarks. Lake is formed by four dams; storage began Apr. 11, 1913. Dams were raised in 

1914" and again in 1917. Usable capacity, 89,200 acre-ft between elevations 6,819.9 ft 

(invert of outlet tunnel No. 1) and 6,950 ft (spillway crest at dam 1) above mean sea 

level. Additional storage of 600 acre-ft is not available for release. Water is used 

for power development in Big Creek plants. Records, including extremes, show usable 

contents at 12 p.m.

Cooperation. Record of contents furnished by Southern California Edison Co. in connection with a Federal Power Commission project.

Revisions. Figures of contents prior to Oct. 1, 1946, are for usable contents above 

centerline of outlet tunnel and those after that date are for usable contents above 

invert of outlet tunnel.

Capacity table, water year 1956-57 (elevation, in feet, 

and usable contents, in acre-feet)

6,898

6,900

6,910

6,920

29,200

30,900

40,200

50,800

6,930

6,940

6,950

62,600

75,300

89,200

Usable contents, In acre-feet, at 12 i.m., water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

M(*)

Oct.

65.500 

62,300

61,200

60, 000

58,900

57,800

56,800

55,700

54,500

53,300

52,200

51,100 

49,900

48,800

47,600

46,500

45,300

44 , 100 

43,000

42,100

41,900

41.400

42,000

43,800

45,500

47,100

48,700

50,500

52,100

53,800

55,400

6,924.04

-9,300

Nov.

57.100 

58,800

60,500

62,300

64,000

65, 700

67,300

69,000

70,300

71,000

71,800

72.500 

71,400

70,500

69,500

68,600

67 , 800

67,400 

67 , 000

67,300

67 , 400

66,500

66,000

65,800

65,000

64,300

63,500

62 , 800

61,800

60,700

6,928.46

+5 , 500

Dec.

59.600 

58^900

58.9OO

58,600

58,400

58,200

58,000

58,000

57,900

57 , 800

57,500

56,700 

56,500

55,800

55,200

54,800

53,800

52,800 

51,800

50,700

50,100

49,600

48,900

48,100

47,700

47,400

47,100

47.000

47,200

47,600

48,100

6,917.56

-12,600

Jan.

48.400 

48,400

47,900

47,500

47,000

46,700

46,200

45,800

45,200

44 , 800

44,400

44 , 500 

44,500

44,300

44,100

44,000

45,800

43,800 

45,700

43,700

43,300

43,000

42,500

42,100

41 , 800

41,800

41,600

41,100

40,700

40,400

40,100

6,909.92

-8,000

Feb.

59,900 

59,900

59,700

59,400

59,000

38,700

38,400

38 , 100

38,100

38,100

37,900

57,900 

57,800

37 , 800

57,500

37,400

37,300

37,200 

56,700

36,300

35,900

35,500

35,500

35,500

35,600

35,500

35,200

35.000

6,904.59

-5,100

Mar.

34.600 

34,400

34,300

34,100

34,000

33,800

33,700

55,700

55,700

33,700

35,600

53,500 

55,500

33,400

33,600

35,900

34,000

34,100 

33,900

34,000

34,200

34,000

33,900

34,100

34,000

33,500

33,000

32,600

32,100

51,800

31, 4 00

6,900.67

-3,600

Apr.

31,000 

30,500

30,100

29,900

30,700

30,800

30,800

30, 900

50, 900

30,900

31,200

51,300 

31,500

31,700

31,700

31,700

31,900

32,300 

32,500

52,400

52,500

32,600

32,600

32,800

32,700

32,700

32,700

32,700

35,100

55.800

6, 903 . 28

+2,400

May

54.700 

35,400

36,200

58,500

40,700

45, 100

45, 100

46,000

46,300

46,500

46,400

46,700 

46,000

45,500

45,200

45,600

46,800

4-9,100 

50,700

51,800

52,300

52,700

52,500

52,000

52,600

53,500

54,500

55,300

56,200

57,200

58. 800

6,926.93

+25,000

June

60. 400 

62,100

63,400

64,300

65 , 200

65,600

66,200

66,900

67,500

67,800

68,100

69,100 

70,800

72,000

73,000

75,800

74,500

75,100 

76,000

77,200

78,400

79,700

81,100

81,900

82,500

83,100

83,500

84,100

84,700

85.400

6,947.58

+26,600

July

85 , 800 

86,100

86,300

86,800

87,500

87 , 700

87 , 900

88,000

88,100

88..200

88,100

88,000 

87,900

87,800

87 , 800

87 , 600

87 , 600

87 , 600 

87 , 500

87 , 500

87,500

87 , 100

86,700

86,700

86,900

87,100

87,300

87 , 500

87,700

87 , 900

87 , 900

6,949.11

+2,500

Aug.

87,400 

87,400

87,500

87,500

87 , 500

87,500

87 , 500

87 , 500

87 , 100

87 , 200

87 , 200

87 , 200 

87 , 400

87,400

87,400

87,500

87,700

88,500 

88,200

87 , 800

87,500

87 , 200

87 , 000

87 , 000

87 , 300

87,200

86,900

86,800

86.700

86, 700

87 , 000

6,948.45

-900

Sept.

87,000 

87,200

87,400

87,200

86, 900

86,700

86,700

87,100

87 , 100

86,800

86, 600

86,500 

86, 500

86,600

87 , 400

87.700

87,600

87,100 

86,800

86,700

86,800

87,300

87 , 500

87 , 200

87 , 000

86,800

86,700

86,600

87,000

87 , 200

6,948.61

+200

Calendar year 1956.................... * -7,900

water year 1956-57.................... * +22,500

t Elevation, in feet, at end of month. 

* Change in contents, in acre-feet.
SAN JOAQUIN RIVER BASIN 381

Big Creek below Huntington Lake, Calif.

Location. Lat 37°13'10", long 119°12'50", in NW^ sec. 23, T. 8 S. , R. 25 E., on right 

bank 1,200 ft upstream from Grouse Creek and 1 mile downstream from Huntington Lake.

Drainage area. 80.0 sq mi.

Records available. June 1925 to September 1957 (records prior to October 1929 are for 

periods of spill only from Huntington Lake).

Gage. Water-stage recorder, Parshall flume, and concrete control. Altitude of gage is 

5,600 ft (from topographic map). Prior to Oct. 1, 1942, at datum 1.00 ft lower and 

from Oct. 1, 1942, to Sept. 30, 1948, at datum 1.00 ft higher than present datum.

Extremes. Maximum discharge during year, 8.2 cfs May 18 (gage height, 2.67 ft); minimum 

daily, 0.5 cfs Dec. 25 to Jan. 11.

1925-57: Maximum discharge, 2,040 cfs June 23, 1925 (gage height, 11.3 ft, present 

datum), siphon spillways operating at Huntington Lake; minimum daily recorded, 0.1 cfs 

Jan. 18-21, Aug. 21 to Sept. 24, Oct. 7-18, Dec. 5-16, 1931.

Remarks.--Records excellent. Flow regulated by Huntington Lake beginning in 1913 (see 

preceding page). During most of year flow is diverted for power development at Big 

Creek powerhouse No. 1.

Cooperation. Water-stage-recorder graph and one discharge measurement furnished by Southern California Edison Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.3 

1.5 

2.0 

2.2 

2.4

0.4 

1.0 

2.8 

3.6 

4.6

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ZO

21

22

23

24

25

26

27

Z8

29

30

31

Total

Mean

Ac-ft

Oct.

0.8

li

.7

.7

.7

.8

.8

.8

.8

!e

22.1

0.71

44

.Nov.

0.6 

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

18.0

0.60

36

Dec.

T 6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

i5_

.5

.5

.5

.5

.5

.5

17.9

0.58

36

Jan.

 

.5

.5

.5

.5

.5

.5

.5

.5

.5

.7

 

2.08

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

19.3

0.62

38

Feb.

"76

.6

.6

.6

.6

.6

.6

.6

.6

.0

.0

.0

.0

.0

.1

.2

.1

.0

.9

.9

.9

1.1

1.0

1.7

1.4

1.3

1.3

-

25.9

0.92

51

Mar.

1.3

1.2

1.1

1.4

1.5

1.4

1.4

1.3

1.2

1.2

1.2

1.0

1.0

1.0

1.0

q

tl

.9

.9

.9

.9

.9

.9

1.0

1.0

1.1

1.1

1.4

1.4

1.3

35.0

1.13

69

Apr.

1.2

1.3

1.3

1.4

1.4

1.3

1.3

l.Z

1.2

1.2

1.2

1.1

1.4

1.2

1.2

1.1

1.2

1.2

1.1

1.1

1.1

1.1

1.4

1.5

1.5

1.4

1.3

1.4

1.3

37.9

1.26

75

May

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.1

1.2

1.3

1.4

1.4

1.3

4.1

373

2.7

2.9

2.9

2.6

2.4

2.2

2.1

2.0

1.9

1.8

l!7

54.9

1.77

109

June

.6

.5

.5

.5

.4

.4

.4

.6

.5

.4

.4

.4

.4

.3

.3

.3

.3

.2

.2

.2

.2

.2

.1

.1

.1

.2

.2

.2

.2

40.0

1.33

79

July

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.0

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

*1.0

.9

.9

.9

.9

33.2

1.07

66

Aug.

0.9 

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

27.9

0.90

55

Sept.

~0.9 

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

9

.9

T76" 1.1

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9

1.0

1.0

28.0

0.93

56

Calendar year 1956: Max 78 Mln 0.5 Mean 2.77 Ac-ft 2,010

Water year 1956-57 : Max 4.1 Mln 0.5 Mean 0.99 Ac-ft 714

* Discharge measurement made on this day.
282 SAN JOAQUIN RIVER BASIN

Pitman Creek below Tamarack Creek, Calif.

Location. Lat 37°11'55", long 119°12'45", in WW£ sec. 35, T. 8 S., R. 25 E. , on right 

bank 0.8 mile downstream from confluence of Tamarack Creek and South Fork Tamarack 

Creek, 1.4 miles upstream from mouth, and 1.9 miles east of town of Big Creek.

Drainage area. 22.7 sq mi.

Records available. December 1927 to September 1957.

Sage. Water-stage recorder, Parshall flume, and concrete control. Altitude of gage is 

7,100 ft (from topographic map). Prior to Sept. 29, 1940, at site 10 ft downstream on 

left bank at same datum.

Average discharge.--29 years (1928-57), 38.6 cfs (27,950 acre-ft per year).

Extremes. Maximum discharge during year, 1,040 cfs May 18 (gage height, 7.95 ft), minimum, 0.2 cfs Mov. 19.

1927-57: Maximum discharge, 3,670 cfs Dec. 23, 1955 (gage height, 11.20 ft), from 

rating curve extended above 350 cfs on basis of slope-area determination at gage height 

10.77 ft; no flow Oct. 15-18, 1931.

Revision. The maximum discharge for water year 1929 has been revised to 551 cfs 

June 16, 1929 (gage height, 5.83 ft), superseding figure published in WSP 691.

Remarks. Records good except those for periods of ice effect, which are fair. No diversion above station; practically all flow diverted below station to Huntington-Shaver 

conduit.

Cooperation. Water-stage-recorder graph and 11 discharge measurements furnished by

Southern California Edison Co. in connection with a Federal Power Commission project.

Revisions (water years).--WSP 931: 1940. WSP 1395: 1928, 1938, drainage area. Revised 

figures of discharge, in cubic feet per second, for the water year 1929, superseding 

those published in WSP 1395, are given herewith:

Date

1929

May 2

3

4

5

6

7

Discharge

136

152

152

152

147

137

Date

1929-Con.

May 8

9

10

11

12

13

Discharge

147

162

157

157

157

167

Month

May 1929 ..................................

Water year 1928-29 ......................

Calendar year 1929 ......................

Date

1929-Con.

May 14

15

16

17

18

19

Maximum

177

231

231

Discharge

167

172

177

177

167

157

Minimum

61

.1

.1

Date

1929-Con

May 20

21

22

23

24

Mean

137

20.3

20.2

Discharge

147

147

152

147

137

Runoff In 

acre-feet

8,420

14,700

14,600

Rating table, water year 1956-57, except periods of ice effect 

height, in feet, and discharge, In cubic feet per second)

1.9 0.2

2.0 .4

2.2 1.0

2.4 1.7

2.6 

2.8 

3.0 

3.2

2.5 

3.4 

4.5 

8.0

3.4 

3.7 

4.0 

4.5

63

115

5.0 175

5.5 249

6.0 355

7.0 630

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24:

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.6 ~7B-

.6

1.0

2.1

1.4

1.2

1.3

1.1

.9

1.2

1.4

1.2

1.0

.9

.8

.8

.8

.7

.7

.7

,7

.8

.1

.5

.7

.7

.5

.2

.4

1.7

34.3

1.11

68

Nov.

1.4

1.6

1.7

bl.7

1.7

bl.8

b2.0

bTTB"

bl.8

bl.8

bl.6

bl.5

bl.4

bl.l

bl.2

1.2

1.2

1.1

.9

79

1.1

1.0

1.0

1.0

1.0

.9

1.0

1.0

1.0

1.0

39.4

1.31

78

Dec.

0.9

.9

.8

78

.9

.9

.8

.9

.9

1.2

.3

.4

.6

.6

.4

.4

.3

.2

.2

.2

.2

.2

.2

.2

.1

.2

.3

.3

.3

.2

.1

35.9

1.16

71

Jan.

1.1

1.0

TTff

1.0

1.0

1.1 1.1

1.1

1.0

1.0

1.1

1.2

3.8

4.3

4.0

3.2

2.8

2.1

2.0

2.1

2.2

2.3

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.2

2.2

61.7

1.99

122

Feb.

b2.1

bTTT

b2.1

b2.1

b2.1

b2.1

b2.1

2.1

2.1

2.6

6.6

6.8

7.8

7.8

8.4

10

11

TO

10

9.2

7.8

7.2

7.8

8.0

10

10

8.8

8.8

-

177.5

6.34

352

Mar.

9.2

9.6

8.8

1Q 8.4

14

16

*16

16

16

14

14

14

12

12

12

12

10

10

9.6

9.2

10

11

9.6

11

12

16

18

 19

19

22

400.4

12.9

794

Apr.

24

?T

28

43

*58

67

64

61

65

73

73

73

83

92

77

67

57

53

49

40

36

»34

35

42

53

63

83

106

115

125

1,863

62.1

3,700

May

132

131

144

159

*170

183

191

»150

122

110

92

82

82

85

92

*113

133

413

34T

165

163

162

135

133

156

*179

187

180

159

151

174

4,869

157

9,660

June

187

THCT

174

159

144

126

120

104

100

89

79

78

76

63

*57

53

50

46

43

39

33

31

28

26

24

21

19

18

16

15_

2,198

73.3

4,360

July

14

T?

11

10

*9.6

8.0

8.0

7.4

7.0

6.6

6.2

6.0

5.8

5.6

5.0

4.2

3.8

3.6

3.3

3.1

2.9

2.8

2.7

2.6

2.3

2.1

2.0

1.8

1.7

1.6

1.5

164.2

5.30

326

Aug.

1.4

T75

.2

.1

* .1

.0

.1

.0

.9

.9

.8

.8

.7

.6

.6

.6

.5

.5

*±

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

31.3

0.69

42

Sept.

0.4

.4

.3

73

.3

.3

.3

.3

.3

.3

.3

.3

.3

~.

.'4

12.1

0.40

24

Calendar year 1956 : Max 488 Mln 0.5 Mean 61.1 Ac-ft 44,390

Water year 1956-57 : Max 413 Mln 0.3 Mean 27.1 Ac-ft 19,600

Peak discharge (base, 20O cfs).--May 6 (6:30 n 

(7.95 ft); June 1 (8 p.m.) 245 cfs (5.48 ft)

.m.) 255 cfs (5.53 ft); May 18 (11:3O p.m.) 1,040 cfs

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
SAN JOAQUIN RIVER BASIN 283

Huntington-Shaver conduit at outlet, Calif.

Location. Lat 37°10' , long 119°14', in NW^ sec. 15, T. 9 S., R. 25 E., on left bank at 

tunnel outlet, 4 miles south of town of Big Creek.

Records available.--October 1928 to September 1957. _

Gage. Water-stage recorder and concrete control. Altitude of gage is 6,680 ft (from 

topographic map).

Average discharge. 28 years (192-9-57), 215 cfs (155,700 acre-ft per year).

Extremes. 1928-57: Maximum daily discharge, 1,780 cfs June 3,4, 1938; minimum daily, 

0.9 cfs Sept. 8-11, 1955.

Remarks. Records good. Conduit diverts from Huntington Lake to Shaver Lake, with 

additions from Pitman Creek and seepage en route.

Cooperation. Water-stage-recorder graph and 19 discharge measurements furnished by

Southern California Edison Co. .in connection with a Federal Power Commission project.

Revisions (water years). WSP 931: 1940.

Discharge, In cubic feet per second, water year October 1958 to September 1957

Day

Z

3

4

5

6

7

8

9

10 

11

12 

13 

14

15

16

17

18

19

ZO

21

22

Z3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.'7

1.7

1.7 

1.9

1.9 

1.9

1.9

1.9

1.9

1.9 

1.9

1.9

1.9

1.9

1.9

1.9

1.9

2.1

27T

2.1

*1.9

2.1

2.1

2.1

2.1

2.1

2.1 

2.1

60.1

1.94

119

Nov.

1.9 

T74

1.1 Ta1.1

1.1 1.1 1.1 1.1

1.1 1.1 *i.i

1.6

1.6

1.4

1.6

 1.4

1.4

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

37.6

1.25

75

Dec.

1.2 

T^

1.2

1.2

1.2 

1.2

1.2

1.2

1.2

1.2 

1.2

1.2

1.2

1.4

T74

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.2

40.0

1.29

79

Jan.

1.2 "O"

l.Z

1.2

1.2

1.2

*1.Z

1.2

1.2

1.9 

2.5

F7

2.1

1.9

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

42.1

1.36

84

Feb.

T3

1.2

1.2

1.4

2.3

2.5

2.6

4.9 

5.2

5.4

6.1

7.5

7.5

*7.9

67ff

5.7

5.2

4.4

5.2

7.1

7.1

6.4

6.1

-

123.5

4.41

245

Mar.

6.1 

6.1

6.1

5.4 "5 T

D . -L

9.7 

10

*12

12

12 

11

12 

10 

10

9.3

8.9

8.9

8.6

8.2

8.2

8.2

8.2

*8.2

8.6

9.7

11

14

17

*18

19

M

326.5

10.5

648

Apr.

26SB30

*44

65 

63

61

65

72 

72

72 

80 

88

76

68

58

54

47

42

39

37

38

44

53

63

79

101

111

119

1,851

61.7

3,670

May

126

125

141

*160

*173

*192 

461

928

918

914 

896

886 

886 

889

694

590

621

899

880

1,080

1,470

1,470

1,450

1,450

1,470

1,480

1,490

1,480

1,480

1,470

1, 490

28,659

924

56,840

June

1,500 

1,500

1,520

1,510

1,500

1,490 

1,490

1,480

1,480

1,480 

1,480

1,160 

774 

772

768

768

768

770

622

464

447

447

447

733

975

1,070

1,150

1,130

1,130

926

31,751

1,058

62,980

July

734 

649

501

388

480

615

662

662

705 

736

*734 

732 

732

595

490

490

431

384

384

384

383

383

155

26

26

26

26

26

26

26

12,980

419

25,750

Aug.

26 SB26

26

*26

26 

26

*26

26

Z6 

26

26 

26 

Z6

26

26

26

26

26

26

26

26

24

1.7

1.6

1.6

1.6

1.6

1.7

1.7

1.7

609.2

19.7

1,210

Sept.

1.7 

T7T

1.7

1.7

1.7

*1. 

1.

1.

1.

1. 

1.

1. 

1. 

2.

2.

2.

2.

2.

2.

2.

2.3

ZT3

2.3

2.3

2.3

2.3

2.1

2.1

2.1

2.1

59.2

1.97

117

Calendar year 1956 : Max 1,590 Mln 1.1 Mean 457 Ac-ft 332,100

Water year 1956-57 : Max 1,520 Mln 1.1 Mean 210 Ac-ft 151,800

* Discharge measurement made on this day. 

Hote. Stage-discharge relation indefinite Maay 8-14, May 20 to June 12; discharge computed on 

basis of unpublished records at conduit intake and Pitman Creek shaft plus estimated inflow of 3 to 

5 cfs.
284 SAN JOAQUIN RIVER BASIN

Shaver Lake near Big Creek, Calif.

Location. Lat 37°09', long 119°18' , in SEij sec. 13, T. 9 S., R. 24 E., near center of 

dam on Stevenson Creek and 6 miles southwest of town of Big Creek.

Drainage area. 29.7 sq mi.

Records available. January 1927 to September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Southern 

California Edison Co.).

Extremes. Maximum contents during year, 117,200 acre-ft July 15 (elevation, 5,361.47 ft); 

minimum, 13,000 acre-ft Apr. 27 (elevation,5,286.34 ft).

1927-57: Maximum contents, 135,700 acre-ft July 4,5, 1946, Aug. 2, 3, 1952; maximum elevation, 5,370.2 ft July 4, 5, 1946; minimum contents, 652 acre-ft Mar. 7, 1942 

(elevation, 5,249.4 ft).

Remarks. Lake is formed by concrete-arch dam; dam completed and storage began in 1927. 

Usable capacity, 135,300 acre-ft between elevations 5,225 (trashrack foundation) and 

5,370 ft (crest of spillway) above mean sea level. Water is received from Huntington 

Lake and Pitman Creek through Huntington-Shaver conduit and released for power development in Big Creek plants. Records, including extremes, show usable contents at 12 p.m.

Cooperation. Record of contents furnished by Southern California Edison Co. in connection 

with a Federal Power Commission project.

Capacity table, water year 1956-57 (elevation, in feet, 

and usable contents, in acre-feet)

5,286

5,288

5,290

5,292

5,294

5,296

5,298

5,300

5,305

12,800

14,200

15,600

17,100

18,700

20,400

22,200

24,000

29,000

5,310

5,315

5,320

5,325

5,330

5,335

5,345

5,355

5,365

34,500

40,400

46,800

53,600

60,900

68,600

85,400

104,200

124,600

Usable contents, in thousands of acre-feet, at 12 p.m., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

M(*)

Oct.

111.6

110.5

109.5

108.5

107.4

106.4

105.5

104.4

103.4

102.3

101.2

100.1

99.2

98.1

97.1

96.0

94.9

93.8

92.7

91.6

90.5

89.4

88.4

87.4

86.3

85.2

84.1

83.0

82.0

81.0

80.0

5,341.93

-32,700

Nov.

78.9

TTS

76.7

75.6

74.5

73.4

72.4

71.3

70.6

70.6

70.6

70.6

70.6

70.6

70.6

70.6

70.6

70.6

'70.6

70.6

70.5

69.9

69.2

68.8

68.7

68.6

68.5

68.4

68.2

68.1

5,334.70

-11,900

Dec.

67.8

67.2

66.1

65.1

64.3

63.3

62.2

61.4

60.6

59.6

58.5

57.5

56.4

55.4

54.3

53.3

52.2

51.2

50.1

49.0

48.0

47.0

46.1

45.1

44.1

43.0

42.2

41.4

40.8

40.5

39.9

5,314.56

-28,200

Jan.

39.6

39.0

38.5

37.8

37.7

37.7

37.1

36.7

36.4

36.1

36.0

36.3

36.2

36.2

36.1

36.0

36.0

36.0

36.0

35.9

35.6

35.3

34.8

34.3

34.2

34.2

34.1

33.7

33.2

32.9

32.7

5,308.48

-7,200

Feb.

32.6

52T5-

32.5

32.1

31.9

31.6

31.5

31.4

31.4

31.4

31.3

31.3

31.3

31.2

31.0

30.9

30.8

30.7

30.3

29.8

29.4

29.1

29.1

29.2

29.4

29.0

28.5

28.0

_

_______

5,304.02

-4,700

Mar.

27.5

 2T7T

26.9

26.3

25.8

25.2

24.6

24.0

23.6

23.5

22.9

22.3

21.7

21.0

20.5

20.3

20.2

19.5

19.1

18.7

18.3

17.9

17.8

17.7

17.4

17.0

16.6

16.2

15.9

15.8

T578

5,290.23

-12,200

Apr.

15.7

isle

15.6

15.5

15.5

15.4

15.2

15.2

15.2

15.0

14.9

14.8

14.6

14.4

14.3

14.2

13.9

13.7

13.7

13.6

13.6

13.5

13.4

13.3

13.2

13.0

TT7?

13.6'

14.0

5,287.83

-1,800

May

14.4

T4T8-

15.2

15.7

16.2

16.7

17.7

19.6

21.6

23.4

24.9

25.6

27.0

28.9

30.2

31.4

32.7

35.5

38.3

40.7

43.9

47.2

50.1

52.5

55.6

58.6

61.3

64.6

67.5

70.5

73.4

5,338. OC

+59,40C

June

76.3

797T

81.4

83.8

86.0

88.2

90.4

92.7

95.1

97.3

99.5

101.1

101.9

102.7

103.5

104.7

105.4

106.1

106.6

106.7

106.8

107.0

107.8

108.5

109.7

111.0

112.1

113.3

114.4

115.1

5,360.43

+41,700

July

115.4

115.6

115.5

115.2

114.9

114.8

115.1

115.3

115.5

115.8

116.1

116.4

116.8

117.1

117.2

117.1

117.0

116.7

116.4

116.0

116.3

116.0

115.7

114.9

113.9

112.9

111.8

111.1

110.1

109.1

108.1

5,356.98

-7,000

Aug.

107.4

106.4

105.5

105.4

104.6

103.6

102.6

101.6

100.5

99.8

99.5

98.6

97.6

96.5

95.5

94.7

94.0

93.6

92.8

92.1

91.3

90.4

89.6

88.8

88.6

87.9

87.0

86.2

85.1

84 .3

83.7

5,344.05

-24, 400

Sept.

83.3

8372

82.5

81.6

80.6

79.6

78.9

78.7

78.1

77 .2

76.4

75.6

74.7

74.2

74.1

73.4

72.7

71.9

71.0

70.2

69.7

69.5

68.8

68.0

67.4

66.8

66.2

65.8

65.7

65.3

5,332.87

-18,400

Calendar year 1956.................... * -34,700

Water year 1956-57.................... * -47,400

t Elevation, in feet, at end of month. 

* Change in contents, in acre-feet.
SAN JOAQUIN RIVER BASIN 285

San Joaquin River above Willow Creek, near Auberry, Calif.

Location Lat 37"08"40", long 119°27 I 00", in SWi sec. 15, T. 95., R. 23 E., on right 

bank 1,000 ft downstream from diversion dam, 0.4 mile upstream from Willow Creek, and 

4.2 miles northeast of Auberry.

Drainage area. 1,299 sq mi.

Records available. March 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,180 ft (from topographic map).

Average discharge. 6 years, 520 cfs (376,500 acre-ft per year).

Extremes --Maximum discharge during year, 15,300 cfs May 19 (gage height, 24.45 ft); minimum daily, 2.9 cfs Mar. 21, 23-27, 30, 31.

1951-57: Maximum discharge, 73,200 cfs Dec. 23, 1955 (gage height, 54.2 ft, from 

floodmarks), from rating curve extended above 7,000 cfs on basis of flood-routing 

study; no flow Sept. 25, 1951.

Remarks.--Records good. Flow regulated by 9 powerplants and 5 reservoirs with combined 

capacity of about 316,000 acre-ft. Conduit to powerhouse No. 4 diverts 1,000 ft 

above station.

Cooperation. Water-stage-recorder graph and 32 discharge measurements furnished by

Southern California Edison Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

2.8 

3.0 

3.2 

3.4 

3.6 

3.8 

4.0

2.6

3.1

4.2

6.0

8.8

13

19

26

4.5

5.0

6.0

7.0

8.0

10.0

14.0

17.0

48

85

223

415

730

1,860

4,700

7,200

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

19

19

20

19 

19

19

18

18

18

18

18

20

19

19

19

*19

19

19

19

19

19

19

18

14

15

16

16

16

16 

16

15

555

17.9

i.ioo

Nov.

13

14

15

15

16

16

*17

17

17

1§

17

17

16

16

16

16

16

16

17

16

16

16

16

16

16

16

16

16

16

16

481

16.0

954

Dec.

16

16

16

16 

i§

*13

TS

15

16

16

16

16

16

16

15

15

16

16

16

16

16

16

16

16

16

16

16

17

17

17 

17

493

15.9

978

Jan.

17

*17

17

17 

17

17

17

17

17

17

17

18

To

3.9

7.1

12

10

13

*15

13

12

16

15

14

15

15

17

16

16

15 

15

455.0

14.7

902

Feb.

T5~ 15

15

15 

15

*15

15

11

9.0

12

9.7

7.0

4.9

4.1

7.7

6.6

6.7

6.7

6.7

*6.7

6.7

6.8

7.1

6.8

5.3

6.5

4.6

3.3

-

250.9

8.96

498

Calendar year 1956 : Max 6,600 Mln 3

Mar.

4.4

*57T

3.1

3.1

3.0

3.0

3.0

3.0

3.2

3.0

3.0

3.1

3.0

3.0

3.0

3.4

3.0

3.0

3.0

*3.0

2.9

T3

2.9

2.9

2.9

2.9

2.9

3.2

*3.1

2.9

2.9

94.9

3.06

188

Apr.

3.1 3TS"

4.0

3.5 

3.5

3.6

4.9

3.6

4.6

5.2

5.7

5.7

5.7

5.8

5.8

5.8

9.1 6"7J

6.1

6.0

*6.0

6.0

6.0

4.8

3.4

3.7

3.7

3.5

3.5

3.7

145.2

4.84

288

May

8.0

3.7

377

3.7 

4.3

14

*442

125

9.9

*5.9

6.1

6.1

6.4

6.2

5.8

5.6

5.6

2,080

6.550

*901

185

100

11

8.0

8.0

9.9

651

810 '434

28

848

13,065.9

421

25,910

June

2.O9O

2,750

*5,730

*5,860 

3,650

5,530

2,870

2,830

1,960

728

346

882

1,420

1,580

525

27

223

433

835

1,010

752

551

431

854

*2,030

1,900

1,570

1,190

1,040

484

45,861

1,529

90,960

July

~2Q- 124

20

20 

*20

20

*21

*19

*T5

19

*20

20

20

20

20

21

21

21

21

22

22

22

22

22

22

22

24

*23

23

23

23

756

24.4

1,500

Aug.

23 *23~

23

23 

23

22

*21

21

20

21

21

21

*21

21

21

21

Z\

21

21

21

20

20

20

20

*20

20

20

20

20

20

20

650

21.0

1,290

Sept.

20

20

20

*20 

20

20

20

20

20

21.

20

20

20

20

20

20

20" 18

19

19

19

19

20

19

19

19

»19

19

19

*19

588

19.6

1,170

Mean 818 Ac-ft 594,100

Water year 1956-57 : Max 6,330 Mln 2.9 Mean 174 Ac-ft 125,700

* Discharge measurement made on this day.
286 SAN JOAQUIN RIVER BASIN

Pacific Gas & Electric Co. conduit No. 3 near Bass Lake, Calif.

Location.--Lat 37°17'25", long 119°31'45", in SEtr sec. 26, T. 7 S., R. 22 E., on left 

bank 1,000 ft downstream from Bass Lake and powerhouse and 2.5 miles southeast of 

town of Bass Lake.

Records available. October 1940 to September 1957. Prior to October 1954, published as 

"near Crane Valley Reservoir."

Gage.--Water-stage recorder and concrete flume. Altitude of gage is 3,300 ft (from topographic map).

Average discharge.--17 years, 68.1 cfs (49,300 acre-ft per year).

Extremes.--1940-57; Maximum daily discharge, 166 cfs Aug. 28, 1956; no flow at times 

during each year except 1945-46, 1948, 1951-53, 1955-57.

Remarks.--Records good. Conduit diverts from Bass Lake in sec. 26, T. 7 S., R. 22 E. 

Water passes through Bass Lake powerhouse, then to powerhouse No. 3, and eventually 

returns to North Fork Willow Creek.

Cooperation.--Water-stage-recorder graph and nine discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28"9

30 

31

Total

Mean

Ac-ft

Oct.

105

105

Toe" 106

106

.9

1.0

105

105

105

105

105

.9

.9

103

103

103

103

103

.8

.8

103

102

102

102

102

 .7

100

100 

100

2,385.7

77.0

4,720

Nov.

99

99

.6

.6

99

99

99

99

99

.5

.5

99

*99

99

99

100

.4

.4

101

101

102

.2

13

.2

.2

26

21

22

26

33

1,637.6

54.6

3,240

Dec.

0.2

.2

33

33

34

67

74

.2

.2

75

76

76

*76

76

.2

.2

82

76

76

76

75

1 2

.2

48

41

41

.2

.2

.2

12 

.2

1,149.4

37.1

2,280

Jan.

0.2

.2

.2

.2

.2

.2

*.2

 22

 25

25

49

.2

.2

49

59

86

86

87

.3

.3

62

62

62

62

62

4.4

8.4

61

55

55 

55

1,039.2

33.5

2,060

Feb.

58

.2

.2

*62

62

62

62

62

.2

.2

62

62

74

T9

.2

.2

6.4

.2

.2

6.2

.2

.2

12

.2

.2

.2

9.5

.2

621.9

22.2

1,230

Calendar year 1956: Max 166 Mln 0.2

Mar.

0.2

6.4

.2

.2

13_

.3

.3

.3

13

.4

.4

.4

13

.3

.3

.3

6.9

.6

.6

.6

13

.3

.3

.3

13

.3

.3

6.9

*.3

.3

.3

93.0

3.00

184

Apr.

9.8

.2

'.Z

6.7

.4

.4

6.7

.3

.3

.3

. 9.8

.2

.2

.2

9.8 ' .3

.3

.3

.3

13

.2

.2

9.5

.2

.2

.2

9.6

'.3

80.5

2.68

160

May

0.3

9.7

.3

.3

6.7

.5

*.5

6.7

.3

.3

10

.4

.4

6.8

.3

.3

9.9

.2

83

153

153

153

153

154

154

154

154

156

158

159 

161

1,998.9

64.5

3,960

June

163

165

T65

161

165

165

125

139

141

159

60

.3

20

68

68

68

88

102

128

152

*150

149

149

124

53

36

.3

6.8

.3

7.2

2,977.9

99.3

5,900

July

0.3

s'.B .3

.4

.4

7.1

.4

.4

7.0

.3

75

133

149

149

149

147

147

146

146

145

145

145

145

145

145

145

145

145

145

146 

148

3,008.4

97.0

5,970

Aug.

*147

148

149

149

149

149

149

149

150

151

153

155

156

157

153

151

150

150

150

149

153

155

143

.4

.4

118

158

TBT

157

144 

.3

4,200.1

135

8,330

Sept.

0.3

116

153

TBT

150

*149

149

149

149

149

149

149

112

.4

.4

56

94

82

84

93

.5

.5

93

93

93

93

93

.3

.3

93

2,694.7

89.8

5,340

Mean 124 Ac-ft 90,030

Water year 1956-57: Max 165 Mln 0.2 Mean 60.0 Ac-ft 43,470

Discharge asurement made on this day.
SAN JOAQUIN RIVER BASIN 287

North Pork Willow Creek near Bass Lake, Calif.

Location. Lat 37°17'20", long 119°31'45", in SE£ sec. 26, T. 73., R. 22 E., on right 

bank 1,500 ft downstream from Bass Lake spillway and 2.5 miles southeast of town of 

Bass Lake.

Drainage area. 50.8 sq mi.

Records available. May 1940 to September 1957. Prior to October 1944, published as 

Willow Creek below Crane Valley Reservoir. October 1944 to September 1954, published 

as below Crane Valley Reservoir."

Gage. Water-stage recorder. Altitude of gage is 3,200 ft (from topographic map). 

Average discharge. 17 years, 18.3 cfs (13,250 acre-ft per year).

Extremes. Maximum discharge during year, 35 cfs May 18 (gage height, 2.04 ft); minimum 

daily, 0.4 cfs many days November to January.

1940-57: Maximum discharge, 847 cfs Feb. 11, 1941 (gage height, 5.85 ft); minimum 

daily, 0.1 cfs Nov. 13-16, 1940.

Remarks. Records good. Plow regulated by Bass Lake (usable capacity, 45,100 acre-ft) 

and diversion into Pacific Gas & Electric Co. conduit No. 3 near Bass Lake (see preceding page). Brown's Creek ditch diverted 19,810 acre-ft from South Pork; Willow 

Creek into Bass Lake in 1957 water year.'

Cooperation. Water-stage-recorder graph and three discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height, In feet 

and discharge, In cubic feet per second)

0.4 0.2

.5 .5

,6 .8

1.0 

1.2 

1.4

3.1 

5.6 

9.3

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.6

.6

.6

.7

.8

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.5

.6

.7

.6

.6

.6

.6

.6

.6

!e

19.8

0.64

39

Nov.

0.6

.6

.5

.5

.5

.5

.4

74

.4

.4

.4

.4

.5

*.6

.6

.6

,6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

. 8

17.1

0.57

34

Dec.

0.8

.8

.8

.8

2.5

.8

.7

.6

.6

.5

.5

.5

*.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

A

.4

.4

.5

.5

.4

.5

18.8

0.61

37

Jan.

~7£ 0.4

.4

.4

.4

.4

A

A

A

.4

.4

.7

1.6 -Tff

.6

.6

.6

.6

.6

.6

.7

.6

.6

.7

.7

.7

.6

.6

.6

.6

.6

18.1

0.58

36

Feb.

0.7

.6

76

.6

.6

.6

.8

1.1

.8

.8

.8

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

1.5

T72- 1.6

.8

.8

.8

-

21.4

0.76

42

Mar.

0.9

.8

.8

.8

.9

.8

.7

.6

17Z

Tff

.7

1.1

.8

.7

.7

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.8

.8

. 8

24.0

0.77

48

Apr.

0.9 "75

.9

.9

.9

1.0

.9

.9

1.0

1.0

1.0

1.0

.9

1.0

1.1

1.1

1.4

T72" 2.0

1.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

32.7

1.09

65

May

1.1

T7T

.1

.1

.1

.1 * .1

.2

.2

.2

.3

.3

.3

.6

.4

.2

.2

8.4

679

3.1

3.0

3.5

2.7

2.4

2.2

2.1

2.0

2.0

2.0

1.9

1.9

64.7

2.09

128

June

1.9

2.0

2.0

1.8

1.8

1.8

1.8

1.6

1.8

2.0

1.8

1.7

1.7

1.9

2.0

1.9

1.8

1.7

1.7

1.7

1.7

1.8

1.7

1.6

1.6

1.6

1.5

17?

1.5

1.5

52.4

1.75

104

July

1.5

T74

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

42.1

1.36

84

Aug.

*1.2

T72

.2

.2

.1

.1

.0

.0

.0

.0

.0

.0

.0

.0

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.7

.8

.8

.8

.8

'.1

28.6

0.92

57

Sept.

TB" 0.6

.6

.6

.6

*.6

.6

.6

.6

.6

.6

.6

.6

.575"

.5

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

16.7

0.56

33

Calendar year 1956 : Max 502 Mln 0.4 Mean 27.2 Ac-ft 19,720

Water year 1956-57 : Max 8.4 Min 0.4 Mean 0.98 Ac-ft 707

Discharge measurement made on this day.
288 SAN JOAQUIN RIVER BASIN

Willow Creek at mouth, near Auberry, Calif.

Location. Lat 37 0 09'10", long 119°27'30", in NE£ sec. 16, T. 9 S., R. 23 E., on left 

bank 40 ft upstream from bridge, 0.4 mile upstream from mouth, 1.3 miles downstream 

from Whiskey Creek, and 4.3 miles northeast of Auberry.

Drainage area. 130 sq mi.

Records available. January 1952 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,200 ft (from topographic map).

Average discharge. 5 years, 49.8 cfs (36,050 acre-ft per year).

Extremes. Maximum discharge during year, 2,190 cfs May 19 (gage height, 12.96 ft); minimum daily, 0.2 cfs Sept. 11, 12.

1952-57: Maximum discharge, 12,000 cfs Dec. 23, 1955 (gage height, 28.5 ft, from 

floodmarks), estimated on basis of rate of inflow into Bass Lake; no flow Sept. 4 to 

Oct. 31, 1955.

Remarks. Records fair. Flow regulated by Bass Lake (capacity, 45,100 acre-ft) and 

diversion into Pacific Gas & Electric Co. conduit No. 1.

Cooperation. Water-stage-recorder graph and 29 discharge measurements furnished by

Southern California Edison Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

3.8

3.9

4.0 

4.2 

4.4 

4.7

0.2

.4

1.1

2.8

5.3

10

18

5.5

6.0 

6.5 

7.0 

8.0 

9.0

43

81

138

216

435

770

1,210

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct,

1.2

1.2

1.2

1.2

2.5

2.8

2.1

2.4

2.4

2.2

2.3

2.6

2.4

2.4

2.2

*2.2

2.2

2.1

2.1 

2.0

2.0

1.9

2.1

4.6

3.5

3.9

3.7

4.6

3.9

4.0 

13

88.9

2.87

176

Nov.

6.4

T78

4.6

4.0

3.9

3.8

*3.8

3.7

3.5

3.5

3.4

3.3

3.3

3.2

3.2

3.3

3.3

3.3

3.3

3.2

3.4

3.4

3.2

3.1

2.9

3.0

3.0

3.1

3.1

3.1

106.1

3.54

210

Dec.

3.0

370

3.0

3.1

8.3

*11~6-.4

5.3

5.0

5.0

5.0

5.5

5.6

5.8

5.3

5.0

.8

.6

.4

.4

.3

.3

.4

.2

.2

.0

.2

.0

4.0

4.2

4.0

149.3

4.82

296

Jan.

4.0

*3.9

3.8 378"

4.0

4.2

3.9

4.2

5.2

*5.3

*4.7

5.2

99

25

14

*12

8.9

7.8

*7.3 

11

10

8.7

8.3

7.4

7.3

9.8

*8.5

8.0

7.4

7 3 

7!3

327.2

10.6

649

Feb.

*7.6

8.2

7.6

T76- 7.4

*7.6

8.2

16

14

12

20

20

21

19

17

*18

20

17

15 

14

14

17

Mar.

54

*49

42

37

48

*57

44

37

69

49

39

45

42

35

34

36

31

28

28 

*27

28

25

76 24

87

288

58

42

39

-

898.2

32.1

1,780

?4

25

26

27

26

*28

28

26

1,118

36.1

2,220

Apr.

26

23

22

22

22

22

20

19

18

17

*17

16

15

Te

19

16

18

34

28 

*38

31

30

29

30

34

34

34

32

28

26

738

24.6

1,460

May

23

22

21

19

17

16

15

IS

17

*16

20

22

19

28

28

24

19

181

1.040 

302

248

*209

171

127

104

75

56

42

39

35

33

3,004

96.9

5,960

June

30

Tf

25

23

22

21

20

19

20

30

23

20

18

17

16

16

14

13

13

12

12

12

11

10

*9.4

9.1

8.9

8.7

8.3

8,2

496.6

16.6

985

July

7.8

7.4

7.1

6.6

6.3

5.9

*5.8

*5.3

5.0

4.8

*4.7

4.6

4.3

4.0

4.2

4.2

3.9

3.8

3.7 

3.4

3.1

3.0

3.0

3.0

2.8

2.8

2.7

*2-.6

2.5

2.4

2 .3

133.0

4.29

264

Aug.

2.2

*2.1

2.0

1.9

1.8

1.7

1.6

1.5

1.5

1.4

1.4

1.3

1.2

1.1

1.0

1.0

.9

.8

.8 

.6

.6

.4

.4

.4

*.4

.3

73

.3

.3

.3

.3

31.8

1.03

63

Sept.

0.3

.3

.3

*.3

.3

.3

.3

.3

.3

.3

.2

72

.3

.3

.3

.3

.3

.5

1.1 

1.2

1.2

1.0

.8

.7

.6

.6

.5

.5

.5

.5

14.6

0.49

29

Calendar year 1956 : Max 1,820 Mln 1.2 Mean 121 Ac-ft 88,100

Water year 1956-57: Max 1,040 Mln 0.2 Mean 19.5 Ac-ft 14,090

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 289

San Joaquin River below Kerekhoff powerhouse, Calif.

Location. Lat 37°04'45", long 119 0 33'35", in NW^ sec. 10, T. 10 S., R. 22 E. , on left 

bank; 1.1 miles downstream from Kerckhoff powerhouse and 1.4 miles upstream from Big 

Sandy Creek.

Drainage area. 1,480 sq mi.

Records available. April 1910 to September 1914, December 1936 to December 1937, December 

1942 to September 1957. Published as "near North Fork" 1910-14.

Gage. Water-stage recorder. Datum of gage is 563.4 ft above mean sea level (levels by 

Bureau of Reclamation). Prior to Oct. 1, 1914, at site 11 miles upstream at different 

datum.

Average discharge.--18 years (1910-14, 1943-57), 2,406 cfs (1,742,000 acre-ft per year).

Extremes.--Maximum discharge during year, 24,600 cfs May 19 (gage height, 29.80 ft); minimum daily, 252 cfs Jan. 12.

1910-14, 1936-37, 1942-57: Maximum discharge, 92,200 cfs Dec. 23, 1955 (gage 

height, 51.0 ft, from floodmarks), from rating curve extended above 20,000 cfs on basis 

of velocity-area studies, computed flow over Kerekhoff Dam, and peak flow of San 

Joaquin River near Friant; minimum daily, 71 cfs Nov. 7, 1949.

Remarks. Records good. Flow regulated by 12 powerplants and 7 reservoirs with total

usable capacity of about 365,000 acre-ft. Earliest storage began in 1901 at Bass Lake. 

See records for Florence, Huntington, and Shaver Lakes. Contents of Bass Lake was 

25,900 acre-ft on Sept. 30, 1956, and 25,400 acre-ft on Sept. 30, 1957.

Cooperation. Water-stage-recorder graph, telemark readings, and 14 discharge measurements furnished by Southern California Edison Co. in connection with a Federal Power 

Commission project.

Rating table, water year 1956-57 (gage height, in feet, and discharge

in cubic feet per second) 

(Backwater from Miller-ton Lake May 25 to July 15)

7.0

8.0

10.0

12.0

224

380

884

1,630

14.0

18.0

22.0

24.0

2,720

5,910

10,300

13,200

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

,550

,530

,620

,730

,540

,560

,400

,590

,600

,570

,610

,660

* ,630 

,520

,560

,600

,460

,750

,530

,560

,390

,390

,570

,510

,550

,470

,450

,390

,510

,730

,470

47,800

1,542

94,810

Nov.

1,740

1,610

1,520

*1,400

1,460

1,740

1,380

1,660

1,550

1,510

707

1,020

880 

780

841

798

571

602

918

1,170

994

1,210

1,520

1,160

939

1,360

1,150

1,070

1,200

1,240

35,700

1,190

70,810

Dec.

983

776

,490

,660

,720

* ,720

,720

,200

,200

,520

,500

,580

,440 

,550

,610

,360

,280

,280

,430

,010

,060

,180

,110

,110

1,020

1,190

981

682

841

616

772

38,591

1,245

76,540

Jan.

566

995

799

940

476

551

 680

641

680

651

677

252

1.870 

1,200

743

657

352

681

543

827

962

800

794

1,060

1,070

410

439

855

1,220

639

740

23,770

767

47,150

Feb.

*751

358

535

746

727

738

805

914

597

526

1,130

»lj440

1,250 

1,330

1,240

1,230

1,080

1,280

1,190

1,200

1,350

1,130

1,960

2,100

5.550

2,520

1,970

1,910

-

35,557

1,270

70,550

Mar.

1,940

1,950

*1,900

1,650

1,740

1,990

2,190

1,980

2,260

2,010

1,760

1,760

1,950 

1,940

1,760

1,590

1,410

1,540

1,710

1,480

1,410

1,350

1,260

878

1,580

1,460

1,550

1,670

1,670

1,740

1,570

52,208

1,684

103,600

Apr.

1,740

*1,480

1,590

1,460

1,900

2,560

2,410

2,130

2,350

2,350

2,540

2,460

2,500 

2,510

2,760

2,240

1,920

2,480

2,290

2,100

1,950

1,920

2,060

2,130

2,620

2,410

2,670

2,960

2,990

0 OQf-1 c. , oyu

68,170

2,272

155,200

May

5,010

5,010

»2,850

2,950

3,300

3,580

5,820

5,540

2,760

2,600

2,570

2,560

2,520 

2,540

2,540

2,540

2,540

3,850

11,900

5,010

4.210

3.940

3,740

5,650

5,590

5,680

4,150

4,400

4,030

3,670

4,280

115,150

3,649

224,400

June

5,210

5,950

6,710

*6.960

6,790

6,720

»6,050

5,950

5,110

4,240

5,840

4,120

4,430

4,670

3,990

"5.600

3,620

3,870

4,190

4,340

 4,260

3,910

5,940

4,230

4,370

4,500

4,630

4,540

4,400

3,850

142,950

4,765

285,500

July

5,590

5,210

2,780

2,850

2,700

2,840

*2,610

2,420

2,600

2,550

2,400

2,460

2,170 

2,190

2,510

2,080

2,040

2,150

2,160

2,040

1,520

1,980

1,570

1,890

1,900

1,900

1,720

1,740

1,630

1 790 

1^660

69,430

2,240

137,700

Aug.

1,450

*1,750

1,730

1,260

1,560

1,710

1,710

1,710

1,690

1,580

1,540

1,540

1,660 

1,470

1,670

1,520

1,250

1,050

1,150

1,410

1,430

1,420

1,330

979

735

1,220

1,230

1,440

1,370

1,490

750

42,984

1,587

85,260

Sept.

647

648

1,080

1,520

1,440

1,510

1,510

590

1,160

*1 , 460

1,590

1,510

1,410 

975

435

1,050

1,300

1,410

1,310

1,330

777

603

1,240

1,270

1,170

1,160

1,130

831

560

1,010

52,852

1,094

65,120

Calendar year 1956: Max 11,300 Mln 571 Mean 3,524 Ac-ft 2,558,000

Water year 1956-57: Max 11,900 Mln 252 Mesn 1,926 Ac-ft 1,395,000

* Discharge measurement made on this day.

Note.--No gage-height record Nov. 13, 14, Aug. 1-23; discharge estimated on basis of upstream 

powerhouse records. Backwater from Mlllerton Lake May 23 to July 13; discharge computed by using 

submergence as a factor.
290 SAN JOAQUIN RIVER BASIN

Fine Gold Creek near Friant, Calif.

Location. Lat 37°04'00", long 119 0 38'50", in NW^-NE^ sec. 14, T. 10 S. , R. 21 E. , on 

right bank 1,500 ft downstream from Willow Creek and 5.5 miles northeast of Friant.

Drainage area. 92.8 sq mi.

Records available.--October 1936 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 620 ft (from topographic map).

Average discharge. 21 years, 37.9 cfs (27,440 acre-ft per year); median of yearly mean 

discharges, 28 cfs (20,300 acre-ft per year).

Extremes. Maximum discharge during year, 407 cfs May 19 (gage height, 4.97 ft); no flow 

Oct. 1-23, June 25 to Sept. 30.

1936-57: Maximum discharge, 10,300 cfs Mar. 12, 1938 (gage height, 20.4 ft, from 

floodmarks), from rating curve extended above 6,500 cfs; no flow at times each year.

Remarks. Records fair except those for period of no gage-height record, which are poor. 

No storage or diversion above station.

Revisions. WSP 1091: Drainage area.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

El

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

*0

0

o

0

0

0

0

0

0

0

0

0

0

o

0

0

0

o

0

0

0

o

0

i

1

2

2

2

2

2

2.2

14.2

0.46

28

Nov.

2.2

1.9

1.8

1.8

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6 1.8

1.8

1.9

1.9

2.0

2.0

2.2

2.2

2.2

2.2

2.3

2.3

2.5

2.5

2.5

2.5

2.5

2.5

60.3

2.01

120

Dec.

2.7

77T

2.7

2.8 *4.8

8.1

5T3

3.7

3.4

3.2

3.2

3.2

3.0

3.0

3.0

3.0

2.8

2.8

2.8

2.7

2.7

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

98.6

3.18

196

Jan.

2.7

2.7

*2.7

2.5

2TT

2.7

2.7

2.7

2.7

2.7

2.7

3.0

8.4

8.1

5.5

4.4

3.7

3.5

3.4

6.3

9.6

573

5.3

4.8

4.6

7.2

6.9

5.8

5.1

4.8

4.6

140.8

4.54

279

Feb.

*4.6

T3

5.1

4.8

4.8

4.8

5.1

7.2

8.4

6.6

6.6

6.6

6.0

5.8

5.3

5.3

5.3

5.1

4.8

4.8

4.8

5.3

15

27

41

18

12

11

-

245.9

8.78

488

Mar.

*32

24

21

16

16

16

12

11

75

&B

32

26

28

21

18

28

22 *18

14

13

11

9.9

9.3

9.3

9.3

8.7

8.1 8.1

7.5

TTT / .0

7.5

605.5

19.5

1,200

Apr.

7.5

6.3

6.3

6.0

5.5

5.5

5.1

5.1

4.8

4.8

4.4

4.4

4.2

577

5.5

5.1

5.5

20 19

11

11

10

8.7

7.8

6.9

6.0

5.5

4.8

4.4

 4.2

210.4

7.01

417

May

3.9

3.9

3.9

3.7

3.7

5.4

5~.5

3.5

3.5

4.4

8.7

7.5

6.3

5.5

5.1

4.2

8.1

146

T8

32 «24

16

13

11

9.0

7.8

6.9

6.0

5.5

5.1

406.5

13.1

806

June

4.4

4.2

3.7

3.2

2.7

2.0

1.9

1.6

1.9

2.8

 2.8

2.3

1.6

1.3

1.3

1.0

.9

.7

.6

.4

.4

.2

.2

.1

0

0

0

0

o

0

42.2

1.41

84

July

(*)

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956: Max 1,790 Mln 0 Mean 45.7 Ac-ft 33,190

Water year 1956-57; Max 146 Mln O Mean 5.00 Ac-ft 3,620

* Discharge measurement or observation of no flow made on this day.

Note. Ho gage-height record Oct. 1-30; discharge estimated on basis of weather records and 

records for Fresno River near Knowles.
SAN JOAQUIN RIVER BASIN 

Millerton Lake at Friant, Calif.

291

Location. Lat 37°00'00", long 119°42'10", in SW£ sec. 5, T. 11 S., R. 21 E. , near center 

of Friant Dam on San Joaquin River, immediately upstream from Cottonwood Creek, 

0.9 mile northeast of Friant.

Drainage area. --1,633 sq mi.

Records available .--October 1941 to September 1957.

Gage . Water-stage recorder. Datum of gage is at mean sea level (levels by Bureau of 

eclamation). Prior to May 29, 1944, staff gages on left bank at same datum.

Extremes . --Maximum contents during year, 523,100 acre-ft June 8 (elevation, 578.5 

minimum , 159,000 acre-ft Sept. 30 (elevation, 478.88 ft).

ft);

1941-57: Maximum contents, that of June 8, 1957; minimum since initial season of 

normal operation, 42,660 acre-ft Mov. 8, 1949 (elevation, 406.6 ft).

Remarks . --Reservoir is formed by gravity-type concrete dam with spillway near center, 

completed in December 1942. Control valves installed in February 1944, and spillway 

gates installed in November 1947. Usable capacity, 503,200 acre-ft between elevations 

375.4 (invert of river outlet) and 578.0 ft (top of drum-type spillway gates) above 

mean sea level. Not available for release, 17,300 acre-ft. Millerton Lake is one 

of the storage units in Central Valley project. Records including extremes, show total 

contents at 12 p.m.

Cooperation. Record of contents furnished by Bureau of Reclamation.

Capacity table, water year 1956-57 (elevation, in feet, 

End total contents, in acre-feet)

470

480

490

500

510

520

138,400

161,700

187,500

215,600

246,300

279,400

530

540

550

560

570

579

314,900

353,000

393,400

436,500

482,200

525,400

Total contents, at 12 p.m., in thousands of acre-feet, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

191.8

191.0

190.1

189.6

189.3

189.2

189.2

188.9

189.0

188.6

188.1

188.0

188.0

187.7

187.5

187.5

187.2

187.3

187.1

186.8

186.3

185.9

185.9

185.5

185.5

185.5

185.5

185.4

186.0

187.3

187.1

489.85

-5.6

Nov.

187.0

187.0

187.1

187.6

188.4

189.8

190.4

190.9

191.0

191.0

189.6

188.7

187.8

187.1

186.8

186.6

186.1

185.6

185.9

186.7

187.7

189.4

191.7

193.6

194.5

196.7

198.9

200.6

202.8

2C5.2

496.40

+18.1

Dec.

206.9

208.2

210.7

213.8

217.2

220.3

223.4

225.6

227.8

230.2

232.5

234.7

236.5

238.4

240.4

241.9

243.5

244.8

246.3

246.7

247.4

248.9

250.5

252.0

253.2

254.9

256.3

256.9

257.7

258.2

258.9

513.90

+53.7

Jan.

259.3

260.5

261.4

262.5

262.9

263.4

264.2

265.0

265.9

267.0

268.0

268.1

271.5

273.7

274.9

275.9

276.2

277.0

277.7

279.4

280.9

282.3

283.7

285.5

287.6

288.4

289.0

290.4

292.5

293.6

294.9

524.48

+36.0

Feb'.

296.2

296.8

297.6

298.9

299.6

299.3

299.3

299.7

300.2

300.6

302.0

303.9

305.1

306.6

308.4

310.1

311.6

313.3

314.9

316.2

317.9

319.3

322.2

325.4

331.0

334.6

337.2

339.5

-

_-

536.53

+44.6

Mar.

341.5

343.7

345.6

347.1

348.5

350.4

352.7

354.4

356.8

357.6

357.6

357.6

357.7

357.9

357.8

357.2

356.6

355.3

354.8

353.7

351.9

350.1

348.0

345.1

342.7

340.7

338.8

337.0

335.1

333.3

331.0

534.33

-8.5

Apr.

329.1

326.6

323.8

321.3

319.4

318.7

317.5

315.8

314.6

313.7

313.4

313.2

313.4

313.5

314.2

314.2

313.9

316.2

318.4

320.7

322.6

324.5

327.0

330.1

334.3

338.1

342.4

347.1

352.0

356.5

540.90

+25.5

May

360.9

365.3

369.5

373.6

377.8

382.2

387.1

391.4

394.4

396.9

399.8

402.4

405.3

407.5

409.9

412.4

414.9

419.4

443.5

452.0

458.7

464.7

469.5

473.8

477.9

481.7

486.4

490.1

492.7

493.4

494.8

572.67

+138.3

June

497.2

501.6

506.8

511.7

515.5

519.3

521.5

523.1

522.8

520.9

518.4

516.5

516.0

517.1

515.8

513.6

511.3

509.3

509.3

510.7

511.3

511.1

510.7

510.6

510.2

510.3

510.8

510.9

510.9

509.8

575.81

+15.0

July

508.5

506.5

503.8

501.3

498.4

495.5

492.3

488.6

484.8

481.1

477.3

473.6

469.6

465.2

461.1

456.8

452.3

448.0

443.9

439.5

434.0

428.8

423.5

418.7

414.0

409.3

404.3

399.2

394.2

389.7

384.5

547.89

-125.3

Aug.

379.6

375.2

370.7

364.9

359.2

354.4

349.7

344.9

340.5

335.8

330.7

325.7

321.4

317.3

313.7

309.7

305.5

300.6

296.0

292.1

287.8

283.7

279.6

274.9

269.5

265.2

260.9

257.2

253.6

250.4

246.1

509.91

-138.4

Sept.

241.6

237.0

233.2

229.8

226.3

223.1

219.8

215.1

211.6

208.5

205.2

202.4

199.8

196.5

192.2

189.2

187.0

185.1

183.2

181.4

178.9

175.7

173.9

171.7

169.3

166.9

164.7

162.3

159.8

159.0

478.88

-87.1

Calendar year 19E6.................... * -208,200

Water year 1956-57.................... * -53,700

t Elevation, In feet, at end of month.

* Change in contents, in thousands of acre-feet.

5105Z9 O - 59 - 20
292 SAN JOAQUIN RIVER BASIN

Friant-Madera Canal at Friant, Calif.

Location. La t 37°00'10" , long 119°42'20", in NW^SW^ sec. 5, T. 11 S. , R. 21 E. , at 

Friant Dam, 0.9 mile northeast of Friant.

Records available. October 1943 to September 1957. Prior to October 1954, published as 

Madera Canal near Friant.

Gage. Discharge computed on basis of valve openings in dam and head on valves. Prior to 

(3ct. 1, 1948, water-stage recorder at several sites at various datums. Oct. 1, 1948, 

to Sept. 30, 1949, water-stage recorder at site 8.8 miles downstream.

Average discharge. 14 years, 212 cfs (153,500 acre-ft per year).

Extremes. 1943-57: Maximum daily discharge, 1,040 cfs July 2, 1956; no flow during 

several months in each year.

Remarks. Records good. Canal diverts from Millerton Lake at right end of Friant Dam for 

irrigation between San Joaquin and Fresno Rivers.

Cooperation. Records furnished by Bureau of Reclamation and reviewed by Geological 

Survey.

Revisions (water years).--WSP 1151: 1944-48.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Ao-ft

Oct.

 Illo

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

0 

0

0

0

0

111

3.58

220

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

0

0

0

0

~S12

0

0

0

0

0

0

0

0

0

&

0

0 

0

0

0

0

0

0 

0

0

0

0

12

0.39

24

Feb.

0

0

0

Map.

0

0

0

0

0

0

0

0

0

0

0

66

100

100

100

100

100

100

141

212

311 

385

403

401

434

484

*531 

*549

581

601

599

6,298

203

12,490

Apr.

597

595

593

590

588

596

604

603

*601

600

559

526

486

470

470

445

387

129

0

67

101 

101

102

*68

0

0

0 

0

0

0

9,888

330

19,610

May

0

0

11

35

35

35

41

45

46

46

20

0

0

0

0

0

0

0

98

152

217 

271

359

404

357

321

352

404

466

*498

*537

4,750

153

9,420

June

572

574

632

666

687

*700

701

703

703

675

623

604

603

603

603

603

606

601

733

891

938 

961

982

993

1,004

1,016

1.026 

1,026

1,026

1,026

23,081

769

45,780

July

1,013

961

913

923

937

963

984

996

1,018

1,025

1,021

1,022

1,022

1,018

1,022

1,024

1,020

1,016

1,019

1,021

1.055 

1,018

999

1,012

 1,022

1,017

1,012 

1,006

995

995

1,014

51,057

1,002

61,600

Aug.

,022

,025

,024

.026

* ,022

,025

,021

,007

960

954

928

914

921

942

959

945

911

896

870

882

940 

978

1,000

992

942

951

890 

846

852

845

797

29,241

943

58,000

Sept.

752

754

760

784

*799

784

762

746

737

687

645

656

611

569

548

555

522

510

500

474

458 

452

477

522

556

552

428 

265

259

*257

17,315

577

34,540

Calendar year 1956: Max 1,040 Mln 0 Mean 329 Ac-ft 239,000

Water year 1956-57: Max 1,033 Mln 0 Mean 334 Ac-ft 241,500

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 

Friant-Kern Canal at Friant, Calif.

293

Location.--Lat 36°59'53", long 119°42'11", in SE^SWi sec. 5, T. 11 S. , R. 21 E. , at 

Friant Dam and 0.9 mile northeast of Friant.

Records availatle. March 1949 to September 1957.

Gage. Discharge computed on basis of valve openings in dam and head on valves. Prior to 

July 8, 1949, staff gages at various sites and daturas. July 8, 1949, to Sept. 30, 

1949, water-stage recorder at site 0.25 mile downstream.

Average discharge. 8 years, 982 cfs (710,900 acre-ft per year).

Extremes.--1949-57: Maximum daily discharge, 4,276 cfs June 6, 1957; no flow during 

several months each year.

Remarks. Records good. Canal diverts from Millerton Lake at left end of Friant Dam for 

irrigation in upper San Joaquin Valley.

Cooperation. Records furnished by Bureau of Reclamation and reviewed by Geological 

Si;urvey.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.230 

1,206

1,199

1,105

866

757

742

728

*756

972

950

839

730

729

728

727

727

743

827

847

861

835

790

721

541

541

541

541

564

629

 1,197

25.169

812

49,920

Nov.

1.526 

1.206

1,051

742

602

607

611

648

683

667

640

612

593

618

620

*602

626

646

645

566

373

224

227

230

232

112

0

0

0

0

IE., 709

524

31,160

Dec.

0

0

0

Jan.

0

0

0

0

0

0

0

0

0

0

0

100

0

0

0

0

117

200 "88

0

0

0

0

0

0

0

0

0

0

0

0

505

16.3

1,000

Feb.

0

0

0

0

257

772

772

615

301

301

301

410

502

482

251

268

300

331

363

381

412

442

479

541

750

*657

589

759

-

11,236

401

22,290

Mar.

930 

799

812

*832

872

895

898

944

,098

,sqs

,622

,623

,611

* ,611

,617

,634

,642

,658

,682

,727

,758

,793

,846

,878

,894

,894

,877

,871

.895

,913

, 949

46,578

1,503

92,390

Apr.

1,997 

2,031

2,063

2,052

2,065

2,155

2.209

2,202

2,124

1,934

1,869

1,801

1,756

1,743

1,715

1,607

1,518

1,147

*877

731

711

593

411

*340

250

252

254

282

319

*392

39,400

1,313

78,150

May

479 

523

526

568

755

874

990

1,036

1,020

977

961

964

909

,135

,115

,086

,076

,094

700

543

468

421 675-

738

860

1,041

1,170

1,900

1,999

2,497

*2,77_7

31,879

1,028

63.230

June

3,184 

3,109

3,438

3,992

4,261

4,276

4,266

4,254

4,256

4,252

*4,207

4,184

3,864

3,367

3,810

3,804

3,831

3,952

3,203

2.546

2,805

2,806

2,868

2,996

3,242

3,283

3,209

*3,151

3,037

2,992

106,443

3,548

211,100

July

2,945 

2,837

2,776

2,777

2.772

2,850

2,916

2,951

2,952

2,956

2,956

2,945

2,919

2,959

2,978

2,959

2,944

2,945

2,920

2,918

3.072

3,058

3,015

2,998

2,951

2,907

2,941

2,980

2,968

2 , 968

2,969

91,002

2,936

180,500

Aug.

2,863 

2,694

2,706

2,855

2.974

2,930

*2,875

2,784

2,699

2,667

2,715

2,729

2,711

2,310

2,299

2,302

2,257

2,312

2,354

2,375

2,385

2,335

2,247

2,185

2,227

2,268

2,261

2,220

*2,137

2,029

2.003

76,708

2,474

152,100

Sept.

2,032 

2,036

2,032

2,067

2,207

2,120

2,065

2,042

2,151

2,115

*2,173

2,043

1,942

1,912

1,872

1,813

1,745

1,663

1,605

1,558

1,512

1,540

1,578

1,623

1,723

1,719

1,692

1,663

1,428

978

54,649

1,822

108,400

Calendar year 1956: Max 4,006 Min 0 Mean 1,880 Ac-ft 1,365,000

Water year 1956-57: Max 4,276 Min 0 Mean 1,368 Ac-ft 990,200

* Discharge measurement made on this day.
294 SAN JOAQUIN RIVER BASIN

San Joaquln River below Prlant, Calif.

Location.--Lab 36°59'04", long 119°43'24", In SW£ sec. 7, T. 11 S., R. 21 E., on left bank 

0.5 mile west of Friant, 1.5 miles downstream from Cottonwood Creek, 2 miles downstream 

from Frianc Dam, and at mile 268.1.

Drainage area. 1,675 sq ml.

Records available. October 1907 to December 1908 (gage heights only), January 1909 to 

September 1957. Published as "near Pollasky" October 1907 to December 1908 and as 

"near Prlant" January 1909 to September 1938. Yearly summaries for period 1908-9 published in WSP 881.

Gage. Water-stage recorder. Datum of gage is 294.00 ft above mean sea level (levels by 

Bureau of Reclamation). Oct. 18, 1907, to Nov. 9, 1913, staff gage at site 4.5 miles 

upstream at different datum. Nov. 10, 1913, to Sept. 30, 1938, water-stage recorder at 

site 2.5 miles upstream at different datum.

Average discharge (revised).--50 years (1907-57), 2,342 cfs (1,696,000 acre-ft per year), 

including diversions to Friant-Madera Canal, 1944-57, to Friant-Kern Canal, 1949-57, 

and adjusted for change in contents in, and evaporation from Millerton Lake, 1941-57.

Extremes. Maximum discharge during year, 1,090 cfs Oct. 25 (gage height, 4.34 ft); minimum, 47 cfs Nov. 21.

1907-41: Maximum discharge, 77,200 cfs Dec. 11. 1937 (gage height, 23.8 ft, site 

and datum then in use); minimum, 38 cfs (regulated) July 29, 1940.

1941-57: Maximum discharge, 11,200 cfs Jan. 23, 1943 (gage height, 11.29 ft; partially regulated, prior to installation of outlet gate), 8,000 cfs Apr. 14, May 13, 

1952 (gage height, 9.64 ft; fully regulated); minimum, 5.5 cfs Oct. 20, 1941.

Remarks. Records good. Flow regulated by Millerton Lake beginning in 1944 (see p. 291 ) 

and by other reservoirs described in Remarks for San Joaquin River below Kerckhoff 

powerhouse. Uncontrolled pondage in Millerton Lake began in September 1941. Diversion 

for irrigation through Friant-Madera and Friant-Kern Canals (see p. 292, 293 ) . Records of chemical analyses for the water year 1957 are given in WSP 1523.

Cooperat ion.--Seventeen discharge measurements furnished by Bureau of Reclamation.

RevisionsTwater years).--WSP 843: 1914(M).

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

?5

26

27

28

29

30

31

Ibtal

Mean

Ac -ft

t)

*

tt

**

Oct.

598

660

777

777

777

750

718

718

738

784

784

784

784

784

784

784

791

798

770

744

744

660

*718

903

917

861

819

819

610

360

*322

22,837

737

45,300

-5,600

49,920

220

940

Nov.

326

322

322

322

322

322

380

580

705

784

791

791

705

440

288

280

167

80

82

*74

49

48 *48-

49

50

50

50

51

51

52

8,581

286

17,020

+18,100

31,160

O

620

Dec.

56

52

52

*53

58

55

54

54

54

189

288

364

490

490

495

495

495

495

580

791

580

294

294

294

294

294

*294

316

340

34O

*340

9,340

301

18,530

+53,700

0

0

300

Jan.

345

331

303

278

257

257

257

224

183

*183

169

117

94

94

*94

83

*56~ 56

56

59

57

56

56

56

56

58

57

57

57

57

*57

4,120

133

8,170

+36,000

1,OOO

24

240

Feb.

57

57

57

57

57

56

BT

57

57

58

58

58

58

58

58

57

58

*58

59

59

59

60

So

60

60

59

59

59

_

1,627

58.1

3,230

+44,600

22,290

0

350

Mar.

61

58

58

*58

58

58

58

58

68

6T

60

60

59

59

59

59

58

58

58

58

59

58

58

58

*58

58

58

*58

58

59

59

1,825

58.9

3,620

-8,500

92,390

12,490

930

Apr.

59

62

69

78

108

118

142

171

*183

183

176

164

157

160

*157

144

*130

132

128

117

102

102

102

104

104

106

106

104

104

*106

3,679

123

7,300

+25,500

78,150

19,610

1,580

May

117

128

130

T2T

126

128

128

128

128

124

124

124

*126

106

88

88

91

99

104

102

106

102

101

101

101

104

106

108

108

108

*118

3,478

112

6,900

+138,300

63,230

 9,420

2,330

June

140

151

171

176

142

142

178

412

520

342

174

157

157

155

155

155

*155

155

155

155

155

155

155

155

162

155

178

*199

199

199

5,659

189

11,220

+15,000

211,100

45,780

4,560

July

199

199

193

183

183

183

183

181

181

181

181

181

181

181

181

178

178

178

*178

176

174

178

174

181

*174

166

164

162

162

162

162

5,518

178

10,940

-125,300

180,500

61,600

5,120

Aug.

162

164

1ST

162

*162

162

160

160

160

160

160

160

160

157

157

157

157

155

155

155

155

153

155

155

155

155

153

153

*146

138

136

4,843

156

9,610

+138,400

152,100

58,OOO

3,740

Sept.

136

126

136

136

136

134

132

130

130

130

*130

130

130

130

130

130

130

128

128

128

128

128

122

117

117

117

115

TT5

115

*117

3,821

127

7,580

-87,100

108,400

34,340

1,960

Adjusted for change In reservoir ntents, diversions, and evaporatlo

Meanl 1,4761 1,124 

Ac-ft| 90,780| 66,900

1,180 

72,530

739 

45,430

1,269 

70,470

1,6411 2,220| 3,581| 4,835 2,161 

100,900|132,100| 220,200] 287,700 132,900

1,383 1,095 

85,050 65,180

Observed

Calendar year 1956 : 

Water year 1956-57:

Max 6

Max

,770 Mln 52 

917 Mln 48

Mean 1,652 Ac-ft 1,199,OOO 

Mean 206 Ac-ft 149, 4OO

Adjusted

Calendar year 1956 : Water year 1956-57:

Mean 

Mean

3,604 

1,892

Ac-ft 2,616,000 

Ac-ft 1,37O,OOO

Discharge measurement made on this day. 

t Change In contents, In acre-feet, In Millerton Lake.

* Diversion, In acre-feet, to Prlant-Kern Canal, 

tt Diversion, In acre-feet, to Friant-Madera Canal.

** Evaporation, In acre-feet, from Millerton Lake, furnished by Bureau of Reclamation.
SAN JOAQUIN RIVER BASIN 295 

Little Dry Creek at mouth, near Friant, Calif.

Location.--Lat 36=56'OS", long 119°43'45", in NW^ sec. 31, T. 11 S., R. 21 E., on left 

bank 150 ft upstream from highway bridge, 1.2 miles upstream from mouth, and 3.8 miles 

south of Friant.

Drainage area.--77.7 sq mi (includes 6.1 sq mi due to Big' Dry to Little Dry Diversion 

Channel).

Records available.--October 1956 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 300 ft (from 

topographic map).

Extremes.--Maximum discharge during year, 9.4 cfs Feb. 25 (gage height, 0.55 ft); no 

flow most of year.

Remarks --Records fair. Diversions up to 700 cfs from Big Dry Creek to Little Dry 

Creek above station occur at times during floods.

Cooperation. Three discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

0.2 

.3

.5

1.7 

6.7

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

£3

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

------

0

0

0

Dec.

(*)

(*)

0

0

0

Calendar year 1956: Max -

Jan.

(*)

(*)

(*)

0

o

0

Feb.

0

0

0

0

O

0

0

0

o

0

0

*0

0

0

0

0

0

0

0

0*

0

0

0

0

1.7

*3,0

*1 .2

1.0

-

6.9

0.25

14

Mar.

*3.4

4.6

2.0

1.6

1.3

1.2

1.0

1.0

1.7

2.6

1.7

1.0

1.0

.9

.9

1.0

1.0 *.e

.5

.3

*0

0

0

0

0

0

0

0

0

0 

*0

29.9

0.96

59

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.4

.5

.1

0

0

0

0

0

0

0

0

*0

1.0

0.03

2.0

May

'o0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.4

1.4

.9

.2

0

0

0

0

0

0

0 

0

2.9

0.09

5.8

June

(*)

0

0

0

July

(*)

(*)

0

0

0

Aug.

(*) f *\

0

0

0

Sept.

0

0

0

Mln - Mean - Ac-ft -

Water year 1956-57: Max 4.8 Mln 0 Mean 0.11 Ac-ft 61

 Discharge measurement or observation of no flow made on this day.
296 SAN JOAQUIN RIVER BASIN

San Joaquin River near Biola, Calif.

Location. Lat 36°49'22", long 120°05'14", in SE£SW£ sec. 2, T. 13 S. , R. 17 E. , on right 

bank 1.9 miles downstream from Skaggs Bridge, 4.2 miles northwest of Biola, and at 

mile 236.3.

Drainage area. 1,805 sq mi.

Records available. October 1952 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 200 ft (from topographic map).

Average discharge.--5 years, 553 cfs (400,400 acre-ft per year).

Extremes. Maximum discharge during year, 880 cfs Oct. 26 (gage height, 5.55 ft); minimum, 33 cfs Apr. 4.

1952-57: Maximum discharge, 7,240 cfs Dec. 27, 1955 (gage height, 10.52 ft); minimum, that of Apr. 4, 1957.

Remarks. Records good. Flow regulated by Millerton Lake (see p. 291) and by other 

reservoirs described in Remarks for San Joaquin River below Kerckhoff powerhouse. 

Diversions for irrigation of about 3,600 acres between stations below Friant and near 

Biola. Records of chemical analyses and water temperatures for the water year 1957 

are given in WSP 1523.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Toted

Mean

Ac-It

Oct.

596

591

625

752

111

784

770

734

716

728

770

770

770

770

764

752

*746

746

746

722

692

692

625

640

833

864

819

764

764

636

*454

22,412

723

44,450

Nov.

386

365

356

353

347

341

338

356

500

584

665

685

690

636

492

347

317

261

172

139

126

115

102

96

92

88

85

84

81

IE

9,278

309

18,400

Dec.

77

76

79

80

79

*76

76

74

72

70

75

192

256

392

419

428

434

440

440

482

620

556

347

308

302

296

*293

287

293

314

317

8,250

266

16,360

Jan.

317

317

314

287

28O

246

238

238

228

190

178

178

166

134

118

112

108

96

86

86

96

92

85

82

80

84

84

81

79

76

2i

4,830

 156

9,580

Feb.

*74

75

76

75

74

72

74

76

76

72

71

72

74

72

70

70

70

69

68

68

68

69

71

71

72

72

71

72

-

2,014

71.9

3,990

Mar.

85

89

80

82

*79

80

82

85

80

82

86

80

72

74

70

71

68

69

66

64

60

59

60

58

59

62

59

56

*51

49

4J

2,164

69.8

4,290

Apr.

45

44

39

35

38

41

59

69

90

107

108

112

119

117

121

117

112

146

156

T33

137

122

107

107

107

*108

108

107

94

89

2,894

96.5

5,740

May

81

80

81

89

89

90

92

92

95

95

100

102

107

112

105

86

74

82

119

121

112

119

107

102

100

100

94

89

80

80

84

2,959

95.5

5,870

June

82

87

92

87

84

*87

89

97

170

*410

369

200

137

123

109

104

107

106

98

90

90

90

88

93

90

81

87

84

114

124

3,669

122

7,280

July

132

132

*124

123

112

109

106

106

107

106

98

99

104

111

126

123

107

114

101

104

109

114

112

107

*101

104

107

109

111

103

95

3,416

110

6,780

Aug.

96

98

99

101

103

101

103

101

96

98

96

99

101

93

90

92

95

99

107

101

90

88

78

99

103

111

106

96

95

*96

87

3,018

97.4

5,990

Sept.

81

92

98

92

86

87

84

88

90

88

72

80

77

75

80

90

99

104

101

96

96

99

98

90

84

74

72

86

87

92

2,638

87.9

5,230

Calendar year 1956: Max 6,540 Min 70 Mean 1,603 Ac-ft 1,164,000

Water year 1956-57: Max 864 Min 35 Mean 185 Ac-ft 134,000

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 297

Presno River near Knowles, Calif.

Location. --La t 37°14'15", long 119°46'25", in NWi sec. 15, T. 8 S., R. 20 E., on left 

bank at Fresno Crossing, .0.1 mile downstream from Bean Gulch and 6 miles northeast of 

Knowles .

Drainage area. 132 sq mi.

Records available . --September 1911 to December 1913, November 1915 to September 1957.

- .

upstream and June 13, 1930, to Jan. 13, 

upstream, at datum about 0.34 ft lower.

Average discharge 42 years (1911-12, 1916-57), 78.3 cfs (56,690 acre-ft per year); 

median of yearly mean discharges, 66 cfs (47,800 acre-ft per year).

Extremes . --Maximum discharge during year, 1,250 cfs May 19 (gage height, 3.82 ft); no 

flow for part of Aug. 28.

1911-13, 1915-57: Maximum discharge, 13,300 cfs Dec. 23, 1955 (gage height, 

11.52 ft), from rating curve extended above 1,500 cfs on basis of slope-area determination of peak flow; no flow at times in some years.

Re vis ions. --The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

441

461

481

511

511

531

551

571

611

631

736

791

811

Water 

year

1916

1917

1918

1919

1920

1921

1922

1923

1925

1926

1932

1935

1936

Date

Jan.

Feb.

Mar.

Feb.

Apr.

Jan.

Feb.

Apr.

Feb.

Feb.

Feb.

Apr.

Feb.

17,

21,

19,

11,

15,

18,

11,

6,

6,

14,

6,

,8,

£(2,

1916

1917

1918

1919

1920

1921

1922

1923

1925

1926

1932

1935

1936

Discharge 

(cfs)

3,300

3,800

2,100

1,480

1,180

1,320

2,400

1,380

920

1,250

3,050

1,880

3,220

Gage height 

(feet)

5.6

6.0

4.5

3.8

3.40

3.60

4.8

3.68

3.00

3.50

5.08

4.06

5.30

Remarks. Records good except those above 200 cfs, which are fair. Diversions for irrigatiori of about 160 acres above station. Diversions into Fresno River basin above station up to 50 cfs at times since 1897 from San Joaquin River basin and up to 50 cfs at 

times since about 1888 from Merced River basin, for irrigation downstream from station.

Revisions.--Revised figures of discharge, in cubic feet per second, for the water years 

1916-19, 1921-23, superseding those published in WSP 441, 461, 481, 511, 531, 551, and 

571, are given herewith:

Date

1916

Jan. 17

18

19

30

33

34

25

36

37

38

39

30

31

Feb. 1

Z

3

4

5

6

7

8

9

10

11

12

13

14

Discharge

1,960

1,130

560

320

460

1,180

3,100

900

900

560

535

410

365

343

330

320

610

1,320

660

535

460

410

365

365

365

343

330

Date

L916-Con.

Feb. 15

16

17

18

19

20

31

ZZ

33

37

38

39

Mar. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Discharge

330

320

398

275

275

275

275

398

375

870

610

510

410

460

410

840

3,060

720

560

510

510

460

460

460

435

410

410

Date

1916-Con.

Mar. 16

17

18

19

20

31

23

23

34

35

36

37

38

39

30

31

1917

Feb. 30

31

ZZ

33

24

35

26

27

28

Discharge

388

365

365

365

990

730

510

460

410

365

365

365

342

343

342

330

495

3,060

1,860

1,350

1,360

1,400

680

470

375

Date

1918

Feb. 22

24

Mar. 7

8

11

13

13

19

30

21

36

1919

Feb. 10

11

12

13

1931

Jan. 18

19

28

39

30

Dec. 34

35

26

Discharge

398

890

1,080

500

330

950

550

1,910

595

375

570

420

1,320

375

330

1,110

445

570

470

595

896

728

375

Date

1933

Feb. 9

10

11

13

13

14

15

16

30

21

23

23

1933

Jan. 23

24

25

26

Apr. 6

7

8

10

11

12

18

Discharge

788

545

1,860

570

570

530

460

375

1,230

700

420

375

575

950

530

375

1,210

510

330

890

450

330

375
298 SAN JOAQUIN RIVER BASIN 

Fresno River near Knowles, Calif. Continued

Month

Calendar year 1916. .............................

Water year 1916-17. .............................

Calendar year 1918. .............................

Maximum

2,100

3,060

3,060

3,060

1,910

1,320

896

1,110

1.860

950

1,210

Minimum

16

195

4.5

42

3.8

3.5

.7

0

4.5

1.0

1.0

1.0

3.0

Mean

175

103

66.7

58.1

83.1

131

94.0

Runoff In 

acre-feet

27,600

34,000

127,000

81,100

74,200

48,300

41,800

42,100

7,160

60,200

22,500

94,900

10,700

68,100

Rating tables, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used Apr. 17-19)

Oct. 1 to May 18 May 19 to Sept. 30

1.2

1.3

1.4 

1.6

126

198

370

1.0

1.1

1.2

0.1 

.4 

1.0 

2.7 

5.9

1.3

2.5

3.0

43

124

226

440

695

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

.6

7

8

9

10

11

12

13

14

15

1617-

18

19

20

21

22

23 

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

7.6

*6.7

7.1

7.6

9.6

13

11

10

9.1

7.1

7.1

7.6

8.1

7.6

7.1

7.1

6.7

6.7

6.7

6.7

7.1

7.1

8.1 

13

11

11

11

12

11

12 

28

291.5

9.40

578

Nov.

2014"

14'

13

13

*13

13

13

12

11

11

11

11

11

11

11

12

12

13

12

12

13

12 

12

12

12

12

12

12

11

371

12.4

738

Dec.

11

11

11

11

*16

37

24

16

15

17

16

16

17

17

17

16

16

15

14

14

14

14

12 

14

13

13

12

13

13

14

14

473

15.3

938

Jan.

14

14

14

14

14

14

14

14

15

I!

14

16

53

46

28

23

20

19

17

26

*26

20

19

19

17

24

14

20

14

17

16

608

19.6

1,210

Feb.

17

21

19

19

19

20

21

33

39

30

36

48

39

37

34

33

31

30

28

27

28

39

107 

153

527

152

120

108

-

1,615

57.7

3,200

Mar.

*150

144

123

114

*130

144

117

108

144

144

108

108

114

96

94

120

96

88

86

81

78

76

71 

TT

71

71

71

74

*71

78

76

3,117

101

6 ,180

Apr.

71

67

65

67

71

74

71

67

69

69

69

67

67

69

71

67

126

*247

*136

130

120

111

105 

105

105

99

94

88

*86

88

2,741

91.4

5,440

May

84

91

91

88

88

88

91

94

91

86

94

96

88

88

94

86

109" 81

684 290"

258

215

201 

180

163

150

146

140

137

134

127

4,453

144

8,830

June

124

124

118

115

115

110

104

107

101

110

*101

98

92

87

90

87

82

73

71

68

68

66

60 

60

53

*50

48

46

46

43

2,517

83.9

4,990

July

41

39

39

36

34

32

31

31

29

29

27

26

26

26

24

23

21

20

17

17

17

17

16 

*16

15

15

13

12

11

11 

9.6

720.6

23.2

1,430

Aug.

9.0

7.4

4.1

2.2

1.5

1.3

1.5

1.3

1.3

1.2

1.2

1.1

1.1

.8

6

.4

.4

.4

.4

.5

.3

.2

.1

TT

.2

.2

.1

*.l

.2

.3 

.4

39.9

1.29

79

Sept.

0.8

1.3

1.0

.9

.8

.6

.6

.5

.5

.5

.4

.8

.9

.8

.9

1.0

1.6

2.7

3.2

2.9

2.7

2.4

ftf

1.8

2.0

2.0

2.2

2.4

2.2

45.8

1.53

91

Calendar year 1956: Max 2,300 Mln 3.2 Mean 98.9 Ac-ft 71,830

Water year 1956-57: Max 684 Mln 0.1 Mean 46.6 Ac-ft 33,700

Peak discharge (base, 590 efs).--May 19 (5:30 a.m.) 1,250 efs (5.82 ft). 

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 299

Presno River near Daulton, Calif.

Location. Lat 37°05'50", long 119°53'20", in NWij sec. 3, T. 10 S., R. 19 E., on left bank 

0.5 mile downstream from Willow Creek and 5.3 miles southeast of Daulton.

Drainage area. S70 sq mi.

Records available.--October 1941 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 385 ft (from topographic map). Prior 

To Sept. 27, 1946, at site 300 ft downstream and Sept. 27, 1946, to Sept. 28, 1949, at 

present site, at datum 2.37 ft higher.

Average discharge.--16 years, 99.0 cfs (71,670 acre-ft per year); median of yearly mean 

discharges, 75 cfs (54,300 acre-ft per year).

Extremes.--Maximum discharge during year, 1,360 cfs May 19 (gage height, 4.29 ft); no 

flow Aug. 13 to Sept. 30.

1941-57: Maximum discharge, 17,500 cfs Dec. 23, 1955 (gage height, 11.64 ft), from 

rating curve extended above 6,400 cfs by logarithmic plotting; no flow at times in 

1944-45, 1947-52, 1954-57.

Remarks. Records fair. No diversions for irrigation between this station and station 

near Knowles. Some regulation at low flow by mining operations above station. See 

Remarks for station near Knowles.

Rating table, water year 1956-57 (gage height, in feet, 

and disqharge, in cubic feet per second)

1.5 

1.6-

2.1 

6.4

1.7 

2.0 

2.5 

3.0 

3.5

214

410

710

Discharge, in cubic feet per second., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

6.4

*5.5

5.5

6.4

6.4

10

15

10

7.4

5.5

4.2

3.7

3.7

4.2

4.2

4.2

4.8

4.8

4.8

5.5

6.4

5.5

7.4

13

i£

13

12

13

13

12

16

249.5

8.05

495

Nov.

32

22

15

13

*13

10

10

8.6

7.4

876

10

10

10

10

12

12

10

12

12

12

12

12

12

10

10

12

13

13

13

13

369.6

12.3

733

Dec.

13

13

13

13

*16

32

32

26

24

22

22

20

20

20

22

22

22

22

22

22

22

20

20

18

18

18

20

18

18

18

15

6E3

20.1

1,240

Jan.

15

13

 13

13

13

15

15

16

16

18

16

16

20

59

46

34

26

26

22

30

*44

40

32

28

24

28

34

26

30

28

26

782

25.2

1,550

Feb.

*28

28

30

28

Z2_

22

22

28

44

42

40

46

46

46

42

36

36

34

30

24

28

28

59

173

275

190

143

125

-

1,695

60.5

3,360

Mar.

*151

159

146

128

125

153

135

118

135

20 £

135

118

143

113

102

133

130

108

91

88

88

84

78

74

11

76

76

74

*76

88

84

3,482

112

6,910

Apr.

80

74

74

78

78

78

76

69

74

74

74

74

65

69

80

78

74

*253

162

118

118

106

104

106

108

106

102

97

*93

97

2,839

94.6

5,630

May

93

95

99

99

102

102

99

99

102

31

102

113

97

99

111

97

95

101

672

367J

290

*240

214

190

167

151

146

138

135

133

130

4,762

154

9,450

June

125

125

120

116

111

*106

95

93

97

106

95

86

82

82

82

82

78

67

65

61

55

59

52

50

46

*42

40

40

38

56

2,330

77.7

4,620

July

34

Jo

28

30

24

20

26

28

26

24

20

16

15

12

15

18

20

16

13

12

12

13

12

*12

12

10

8.6

8.6

7.4

7.4

6.4

536.4

17.3

1,060

Aug.

6.4

575

4.2

3.0

1.9

1.3

.9

.7

.6

.4

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

25.2

0.81

50

Sept.

0

0

0

Calendar year 1956: Max 3,150 Mln 1.8 Mean 144 Ac-ft 104,700

Water year 1956-57: Max 672 Mln 0 Mean 48.5 Ac-ft 35,100

Peak discharge (base, 500 cfs). May 19 (11:30 a.m.) 1,360 cfs (4.29 ft). 

* Discharge measurement or observation of no flow made On this day.
300 SAN JOAQUIN RIVER BASIN

Chowchilla River at Buchanan dam site, Calif.

Location.--Lat 37°13'00", long 119°59'00", in SE£ sec. 22, T. 8 S., R. 18 E., on right 

bank 1.9 miles upstream from Raynor Creek and 4.3 miles west of Raymond.

Drainage area. 238 sq mi.

Records available.--October 1921 to September 1923, October 1930 to September 1957.

Gage. Water-stage recorder. Datum of gage is 407.30 ft above mean sea level, adjustment 

of 1912 (levels by Merced Irrigation District). October 1921 to September 1923 at site 

2.5 miles upstream at different datum.

Average discharge.--29 years (1921-23 1930-57), 103 cfs (74,570 acre-ft per year); median 

of yearly mean discharges, 88 cfs (63,700 acre-ft per year).

Extremes. Maximum discharge during year, 1,230 cfs May 19 (gage height, 6.07 ft); no flow 

Oct. 1-6, July 18 to Sept. 30.

1921-23, 1930-57: Maximum discharge, 30,000 cfs Dec. 23, 1955 (gage height, 

16.50 ft), from rating curve extended above 6,000 cfs on basis of slope-area determination at gage height 15.06 ft; no flow for part of each year except 1937-38, 1940-43.

Remarks. Records good. No storage or large diversion above station. 

Revisions (water years). WSP 931: 1932(P) , 1936-38(P).

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.2 

2.0 

3.2

5.0

1.8 

2.0 

2.3 

2.6 

3.0 

3.5 

4.0 

5.0

112

189

304

672

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

0

.2

.6

1.7

1.7

1.8

1.6

1.6

1.8

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.8

2.9

3.6

3.9

5.5

4.8

4.8

4.8

6.2

9.2

70.7

2.28

140

Nov.

14

To

8.5

7.2

6.8

6.5

*6.5

6.5

6.2

6.2

6.0

5.8

578

5.8

5.8

5.8

6.2

6.2

6.5

6.6

6.5

6.8

6.8

6.8

6.5

6.5

6.8

6.8

6.8

6.8

205.9

6.86

408

Dec.

6 8

6 8

6 8

7 0

9 2

*20

21

T4

11

10

9.8

9.8

9.8

9.8

9.5

9.5

9.2

9.2

8.8

8.5

8.5

8.5

8.5

8.5

8.2

8.2

8.5

8.2

B.2

8.5

8*5

298.8

9.64

593

Jan.

8.2

872

B.2

8.5

8.8

8.8

8.8

8.8

9.2

9.8

9.5

10

19

50

30

19

15

14

13

19

30

25

19

16

15

20

23

17

16

14

14

494.8

16.0

981

Feb.

14

14

14

14

14

13

14

18

32

27

23

30

27

24

21

19

17

16

16

15

16

18

36

290

600

168

97

73

-

1,680

60.0

3,330

Mar.

141

175

132

94

*99

138

98

77

104

180

99

81

103

77

67

161

129

93

79

67

59

54

50

47

45

42

40

39

37

37

36

2,680

B6.5

5,320

Apr.

34

32

30

28

27

27

26

24

23

23

22

22

21

22

24

24

27

152

TT2

67

65

57

53

47

42

39

35

33

»30

28

1,196

39.9

2,370

May

28

27

24

23

22

20

20

20

21

22

25

31

35

45

44

38

29

30

576

298

243

177

159

130

99

82

71

61

54

50

47

2,551

82.3

5,060

June

41

37

32

30

27

»23

22

20

20

22

24

21

18

16

15

14

13

12

11

9.5

8.5

7.8

7.2

6.5

5.8

*4.8

4.1

3.9

3.2

5.1

482.4

16.1

957

July

2.8

Z75

2.1

1.8

1.6

1.2

1.2

.9

.7

.6

.5

.3

.3

.2

.2

.1

.1

0

0

0

0

0

0

*0

0

0

0

0

0 

0

0

17.1

0.55

34

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 2,730 Min 0 Mean 110 Ac-ft 79,970

Water year 1956-57: Max 600 Min 0 Mean 26.5 Ac-ft 19,190

Peak discharge (base, 770 cfs). Feb. 25 (9 a.m.) 940 cfs (5.56 ft); May 19 (8 a.m.) 1,230 cfs 

(6.07 ft)._________________________________________________________________ 

* Discharge measurement or observation of no flow made on this day.
SAN JOAQUIN RIVER BASIN 301

Salt Slough near Los Banos, Calif.

Location.--Lat 37°09'35", long 120°48'45", on left bank at San Luis Ranch in Sanjon de 

Santa Rita Grant, 7 miles north of Los Banos, Merced County.

Records available. December 1940 to September 1957.

Gage. Water-stage recorder. Datum of 

Bureau of Reclamation).

ge is 70.60 ft above mean sea level (levels by

Average discharge . 16 years (1941-57), 207 cfs (149,900 acre-ft per year).

Extremes. Maximum discharge during year, 180 cfs Mar. 30 (gage height, 3.75 ft); minimum, 

9.9 cfs Dec. 15.

1941-57; Maximum daily discharge, 2,420 cfs Mar. 9, 1941; minimum, 8.5 cfs Sept. 8. 

1950.

Remarks. Records good. Flow regulated by irrigation operations above station. Salt 

Slough is a continuation of Pick Anderson Slough system.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

2.1

2.2 

2.5 

3.0 

3.8

97

185

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

30

21

22

23

24

25

26

27

28

39

30 

31

Total

Mean

Ac-ft

Oct.

98

16

67 

65

62

56

54

49

47

45

36

3°

35

30

33

33

34

34

35

31

31

*32

34

34

37

42

41

40

52

51 

46

1,395

45.0

2,770

Nov.

42

40

40 

44

43

41

40

36

38

38

41

42

42

41

45

45

45

42

*43

50

42

41

43

43

43

41

39

38

38

38

1,244

41.5

2,470

Dec.

36

33

32 

30

30

*30

30

29

28

27

26

23

22

21

13

17

16

15

11

19

27

22

21

27

27

23

23

24

28

28 

28

766

24.7

1,520

Calendar year 1956: Max 620

Jan.

28

23

15 

15

19

24

70

*79

84

86

90

93

96

95

89

82

79

78

78

78

79

84

83

80

84

89

89

88

85

83 

83

2,228

71.9

4,420

Feb.

82

79

76 

74

73

71

*70

70

73

73

78

121

161

T¥3

133

149

156

133

104

108

97

93

94

97

102

95

92

97

2,784

99.4

5,520

Mln 11

Mar.

112

116

99 

86

*90

100

97

66

70

79

80

84

92

106

116

118

119

121

122

122

121

127

137

145

149

145

150

158

176

178 

TTT

3,652

118

7,240

Apr.

172

175

163 

154

158

156

159

*159

161

148

141

137

136

142

129

126

137

160

150

140

130

114

95

88

88

84

83

79

73

80

3,917

131

7,770

May

82

86

94 

99

87

88

87

*79

60

78

82

80

79

86

88

77

83

90

102

117

128

TT4

94

88

88

85

77

76

83

82 

80

2,719

87.7

5,390

June

78

82

84 

84

79

83

100

101

99

*108

100

92

75

68

77

77

79

92

88

87

94

89

84

88

92

95

111

T59" 112

106

2,713

90.4

5,380

July

117

111

97 

98

101

102

101

112

112

114

119

119

114

116

118

108

100

110

100

106

108

114

111

115

*124

127

118

96

86

133 

T3TD

3,437

111

6,820

Aug.

108

117

132 

122

118

119

*130

131

132

139

148

150

137

123

121

96

112

115

121

131

122

119

116

110

122

111

114

128

124

106 

111

3,785

122

7,510

Sept.

106

94

 ft

128

93

80

83

86

82

84

75

73

115

100

96

85

90

101

97

90

84

80

88

85

90

105

97

104

136

2,784

92.8

5,520

Mean 164 Ac-ft 119,400

Water year 1956-57: Max 178 Mln 11 Mean 86.1 Ac-ft 62,330

* Discharge measurement made on this day.
302 SAN JOAQUIN RIVER BASIN

San Joaquln River at Fremont Ford Bridge, Calif.

Location.--Lat 37°18'35", long 120°55'45", In Orestimba Grant, on left bank 150 ft downstream from Fremont Ford Bridge, Merced County, 2.1 miles downstream from Salt Slough, 

4.5 miles west of Stevlnson, and 6.7 miles upstream from Merced River.

Drainage area.--8.090 sq ml, approximately.

Records available. October 1944 to September 1957 In reports of Geological Survey. February 1937 to September 1957 In reports of California Department of Water Resources.

Gage. Water-stage recorder. Datum of gage Is 3.73 ft above mean sea level (levels by 

Bureau of Reclamation). Prior to Dec. 8, 1949, on downstream side of Fremont Ford 

Bridge near left bank.

Average discharge.--13 years (1944-57), 628 cfs (454,700 acre-ft per year).

Extremes.--Maximum discharge during year, 1,990 cfs Mar. 7 (gage height, 65.01 ft); minimum/ 45 cfs Nov. 25.

1944-57: Maximum discharge, 4,470 cfs Mar. 25, 1952; maximum gage height, 69.86 ft 

Dec. 29, 1955 (backwater from Merced River); minimum discharge, 18 cfs Oct. 18, 1949.

Remarks. Records good except those for period of backwater from Merced River, which are 

fair. Natural flow of stream affected by storage reservoirs, ground-water withdrawals, 

diversions for irrigation, and imported water from Delta-Mendota Canal (see p. 363). 

During periods of high flow, some water bypasses this station through Mud Slough; low 

flows consist mainly of return water from irrigated areas. See Remarks for stations 

upstream. Records of chemical analyses and water temperatures for the water year 1957 

are given in WSP 1523.

Rating tables, water year 1956-57, except period of backwater from Merced River 

height, In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1-22)

(gage

Oct. 1 to Feb. 13 Feb. 14 to Sept. 30

58.2 42 58.6 106

58.5 74 59.0 161

59.0 144 60.0 321

60.0 350 61.0 530

62.0 895 63.0 1,190

64.0 1,590 65.0 1,990

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

204

220

196

162

149

144

146

153

158

151

171

151

155

194

169

160

164

196

266

302

238

188

*133

85

89

99

106

85

98

92 

82

4,906

158

9,730

Nov.

75

66

55

56

62

58

58

56

51

53

67

71

71

66

68

66

61

52

»51

52

52

52

50

53

il

51

53

50

54

62

1,739

58.0

3,450

Dec.

62

60

58

63

*65

74

71

75

75

66

67

68

65

65

68

59

58

58

58

58

59

66

62

60

66

70

74

74

75

75 

74

2,048

66.1

4,060

Jan.

74

75

75

68

£6

71

*78

149

188

186

190

258

315

3752

275

251

224

208

198

196

198

196

190

182

178

190

194

192

184

178 

169

5,498

177

10,900

Feb.

166

164

171

171

166

151

*142

Tss

249

291

*627

»1,240

»1,560

*1,490

»803

»444

352

312

269

234

220

206

200

200

206

220

283

326

11,029

394

21,880

Mar.

344

361

389

695

1,520

*1,890

1,950

1,390

777

538

435

391

371

346

328

321

316

303

299

294

292

290

287

285

289

285

277

274

274

272 

FT?

16,362

528

32,450

Apr.

296

303

303

292

279

275

255

 243

239

226

214

196

194

T37

223

216

245

330

437

528

542 540"

502

505

512

488

465

415

370

325

10,155

338

20,140

May

261

245

237

232

237

218

192

»184

184

168

170

178

196

208

223

256

279

280

319

449

609

735

784

872

3375

735

576

475

391

305 

253

11,281

364

22,380

June

242

c240

c240

c240

c240

*c240

c240

0260

c270

0280

c280

c280

277

269

261

275

279

263

258

221

214

198

189

204

204

198

186

'27)5

202

186

7,136

238

14,150

July

184

T8~6~ 190

180

167

173

170

173

»173

170

157

158

157

151

161

167

166

158

160

154

141

139

143

133

T43

151

154

150

146

144

158

4,957

160

9,830

Aug.

153

147

T5T

158

161

158

»172

179

174

172

168

179

200

T97

180

178

173

178

173

188

196

184

173

162

150

154

158

168

176

176 

176

5,312

171

10,540

Sept.

174

174

167

»140

168

176 140"

146

147

137

127

126

119

119

147

161

155

148

154

167

172

151

137

130

125

118

m

130

139

148

4,361

145

8,650

Calendar year 1956; Max 4,410 Mln 49 Mean 1,078 Ac-ft 782,700

Water year 1956-57: Max 1,950 Mln 47 Mean 232 Ac-ft 168,200

* Discharge measurement made on this day. 

c Backwater from Merced River.
SAN JOAQUIN RIVER BASIN 303

Merced River at Happy Isles Bridge, near Yosemite, Calif.

Location. Lat 37 0 43'54", long 119°33'28", on right bank 10 ft downstream from Happy 

Isles Bridge, 0.4 mile downstream from Illllouette Creek, and 2.0 miles southeast of 

Yosemite National Park Headquarters, Mariposa County.

Drainage area. 181 sq mi.

Records available. August 1915 to September 1957.

Gage. Water-stage recorder. Datum of gage is 4,016.58 ft above mean sea level, datum 

of 1929. Prior to Nov. 2, 1916, staff gage at datum 0.55 ft lower.

Average discharge.--42 years, 341 cfs (246,900 acre-ft per year).

Extremes. Maximum discharge during year, 2,910 cfs June 4 (gage height, 6.95 ft); minimum, 6.0 cfs Sept. 29.

1915-57: Maximum discharge, 9,860 cfs Dec. 23, 1955 (gage height, 12.73 ft), from 

rating curve extended above 4,000 cfs on basis of contracted-opening determinations at 

gage heights 10.4 and 11.55 ft; minimum, 1.5 cfs Sept. 30, 1926.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

About 1 cfs diverted above station for Yosemite Valley water supply.

Revisions (water years). WSP 1215: 1938(M).

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

1.3 

1.6

2.0 

2.5 

3.0 

3.5

75

144

252

402

4.0 

5.0

6.0 

.7.0

600

1,150

1,910

2,980

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

72.

62

57

61

71

66

59

62

64

58

57

58

54

48

43

39

35

33

30

27

26

24

2T

28

39

48

a55

a45

a 45

a55

a 60

1,506

48.6

2,990

Nov.

a 60

a60

a65

370

a75

a 80

aB5

390

a95

390

380

a75

365

360

*57

56

51

47

38

34

35

34

31

30

28

27

27

26

25

£6

1,623

54.1

3,220

Dec.

25

24

23

25

30

26

21

2^

36

40

48

54

54

51

48

45

41

39

34

32

31

28

30

27

25

24

23

22

22

22

21

999

32.2

1,980

Jan.

20

20

19

17

18

16

17

16

TB- 15

16

22

42

34

31

*30

29

28

27

30

31

34

34

33

32

34

31

30

30

28

29

809

26.1

1,600

" Feb.

30

30

28

25

30

29

30

32

31

33

66

94

130

138

136

141

139

122

111

100

97

95

120

153

211

172

151

144

-

2,621

93.6

5,200

Mar.

141

138

128

124

149

172

176

174

168

148

144

*151

134

128

127

125

117

113

106

103

104

97

96

97

114

118

136

162

195

195

4,264

13 S

8,460

Calendar year 1956: Max 3,050 Mln 21 Mee

Apr.

182

152" 166

252

346

395

362

375

388

449

438

402

420

491

402

346

312

303

273

255

242

257

*260

286

327

375

460

569

 ST5 710

10,900

363

21,620

May

710

670

685

899

1,040

1,180

1,300

1,020

750

705

564

471

483

507

442

547

800

1,170

1,140

715

650

660

600

573

725

1,090

1,350

1,370

1,140

1,080

1 1.500

26,536

856

52,630

June

1,920

2,260

2,350

2.420

*2,4l6

2,180

2,040

1,990

1,640

1,150

1,090

1,270

1,350

1,170

988

910

1,020

1,180

1,310

1,220

1,130

1,090

1,110

*1,160

1,190

1,220

1,110

1,070

1,000

784

42,732

 1,424

84,760

July

622

BT?

475

471

487

464

392

355

355

352

321

286

262

238

216

216

211

200

ISO

155

134

*117

108

107

114

111

108

104

101

103

100

7,992

258

15,850

Aug.

"97 100

94

92

90

83

77

71

65

62

58

53

50

47

45

46

46

45

45

*45

44

41

40

38

40

40

40

35

31

30

26

1,716

55.4

3,400

Sept.

23

tt

19

17

16

15

14

14

13

14

15

16

16

16

16

15

15

15

15

14

13

11

10

9.2

8.6

7.8

6.9

6.6

6.3

T3

404.6

13.5

803

in 557 Ac-ft 404,200

Water year 1956-57: Max 2,420 Mln 6.3 Mean 280 Ac-ft 202,500

Peak dlsehsrge (bsse, 1,900 cfs). June 4 (2:50 3.m.) 2,910 cfs (6.95 ft)._________________

* Discharge messurement made on this day.

3 No gsge-helght record; discharge estimated on basis of records for ststlon 3t Pohono Bridge.
304 SAN JOAQUIN RIVER BASIN

Tenaya Creek: near Yosemite, Calif.

Location. Lat 37°44'32", long 119°33'25", in Yosemite National Park, on left bank: at 

bridge 0.7 mile upstream from mouth and 1.7 miles east of Yosemite National Park 

Headquarters, Mariposa County.

Drainage area. 47 sq mi, approximately.

Records available. July 1904 to June 1909, January 1912 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 4,000 ft (from topographic map). Prior 

to Feb. 4, 1913, staff gages at several sites on bridge at various datums. Feb. 4, 

1913, to Sept. 14, 1918, staff gage and Sept. 15, 1918, to Sept. 30, 1956, water-stage 

recorder at present site at datum 2.0 ft higher.

Average discharge.--44 years (1913-57), 106 cfs (76,740 acre-ft per year).

Extremes. Maximum discharge during year, 906 cfs May 18 (gage height, 5.64 ft); minimum, 

1.6 cfs Jan. 9, 10.

1904-9, 1912-57: Maximum discharge, 6,800 cfs Dec. 11, 1937 (gage height, 10.00 ft), 

from rating curve extended above 2,000 cfs on basis of contracted-opening determination 

at gage height 8.44 ft; minimum, 0.6 cfs Dec. 18-22, 1929, Dec. 2, 6-15, 1940.

Remarks. Records fair except those for period of no gage-height record, which are poor. 

No storage or diversion.

Revisions (water years). WSP 861: 1937. WSP 881: 1938. WSP 1445: 1914-15, 1938(M), 

1951.

Rating tables, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used Oct. 1-3, 22)

Oct. 1 to May 18 May 19 to Sept. 30

1.7

1.8

1.9

2.0 

2.2

1.0

2.5

6.0

11

28

2.5 

3.0 

4.0 

5.0

64

148

388

680

1.6

1.7

1.8

1.9

2.0

1.0

2.5

5.0

9.0

16

2.2 

2.5 

3.0

4.0 

5.0

38

82

170

390

680

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.4

2^4

3.2

4.2

3.9

2.8

7.5

8.0

5.3

9.0

13

8.5

7.5

5.3

4.2

3.9

3.2

3.2

2.8

2.8

2.4

3.6

4.6

10

13

"2"2" 24

16

20

23

244.1

7.87

484

Nov.

26

27

28

35

44

51

50

SQ- 61

56

49

40

36

27

*22

19

17

15

13

13

11

10

10

9.5

9.0

9.0

8.5

7.5

T75

7.5

778.5

26.0

1,540

Dec.

7.5

8.0

8.0

9.0

11

9.0

11

14

14

14

*17

27

34

3t5

24

24

19

15

11

11

10

9.5

9.0

8.0

7.0

7.5

7.0

7.0

7.0

7.0

7.0

403.5

13.0

800

Jan.

7.5

6.5

6.0

5.0

5.3

5.6

5.6

3.6

1.6

ITS

1.8

1.9

6.5

8.5

10

*8.1

11

10

9.5

10

10

11

13

aT5

a!2

a!2

a9.0

a7.0

a7.0

a7.0

a7.0

233.6

 7.54

463

Feb.

aS.O

aBTtf

a8.O

aS.O

a8.O

a8.O

aS.O

8.0

8.0

8.5

41

81

112

98

*87

98

98

77

64

55

52

46

68

92

136

103

82

72

1,542.5

55.1

3,060

Calendar year 1956: Max 1,200 Min 1.6

Mar.

67

64

60

60

75

78

81

78

78

68

64

*70

64

60

58

58

51

49

46

45

47

45

40

IT

51

54

68

82

107

90

1,994

64.3

3,960

Apr.

75

68

SI

142

212

236

212

231

248

267

260

246

270

300

219

179

146

146

115

105

98

*103

107

134

162

205

267

336

35B- 367 

5,873

196

11,650

May

362

352

354

436

492

518

*512

424

344

305

248

208

205

203

192

260

333

532

501

340

311

295

278

271

330

430

500

*452

*424

436

542

11,390

367

22,590

June

614

656

671

553

608

536

503

447

398

328

298

302

304

271

240

217

205

213

209

201

187

176

168

*162

155

146

133

117

106

88

9,312

310

18,470

July

SB" 77

54

48

44

41

37

33

30

27

25

21

19

18 '15

13

12

10

10

9.0

8.6

*8.2

8.2

7.8

7.4

7.4

7.8

8.2

8.2

8.2

7.4

696.4

22.5

1,380

Aug.

7.4

7TTT

5.8

5.4

5.0

4.5

4.2

4.5

4.2

3.8

4.0

4.0

4.0

3.8

3.5

3.5

3.8

3.5

3.5

*3.0

3.0

3.0

3.0

2.8

2.8

3.0

2.8

3.0

3.0

o*c

 iis.

120.1

3.87

238

Sept.

2.5

2.5

2.8

2 L8

2.8

2.5

2.5

2.5

2.5

*2.4

2.8

3.2

3.2

3.2

3.0

3.0

3.5

3.5

3.5

3.2

3.2

3.2

3.2

3.2

3.0

3.0

2.8

2.5

2.2

2.0

86.2

2.87

171

Mean 164 Ac-ft 119,200

Water year 1956-57: Max 671 Min. 1.6 Mean 89.5 Ac-ft 64,810

Peak discharge -(base. 490 cfs). May 6 (8 p.m.) 659 cfs (4.93 ft); May 18 (11 p.m.) 906 cfs 

(5.64 ft); May 27 (6 p.m.) 605 cfs (4.75 ft); June 3 (8 p.m.) 855 cfs (5.50 ft).

* Discharge measurement made on this day.

a No gage-height record; dlsiharge estimated on basis of weather records and records for Merced 

River at Happy Isles Bridge near Yosemite.
SAN JOAQUIN RIVER BASIN 305

Merced River at Pohono Bridge, near Yosemite, Calif.

Location. Lat 37°43'0l", long 119°39'55", on left bank 150 ft upstream from Pohono 

Bridge, 0.4 mile upstream from Artist Creek, and 4.8 miles southwest of Yosemite 

National Park Headquarters, Mariposa County.

Drainage area. 321 sq mi.

Records available. November 1916 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 3,861.66 ft above mean sea level, datum 

of 1929. Prior to Sept. 5, 1918, at datum 1.8 ft higher and Sept. 5, 1918. to 

Sept. 30, 1955, at datum 1.0 ft higher.

Average discharge . 40 years (1917-57), 596 cfs (431,500 acre-ft per year).

Extremes.--Maximum discharge during year, 4,880 cfs May 18 (gage height, 9.24 ft); minimum, 25 cfs Sept. 29.

1916-57: Maximum discharge, 23,400 cfs Dec. 23, 1955 (gage height, 21.52 ft, from 

floodmark in well), from rating curve extended above 6,800 cfs on basis of computation 

of flow over diversion dam for Yosemite powerhouse 1 mile downstream at gage heights 

20.1 and 20.98 ft, present datum; minimum, 3.3 cfs Sept. 29, Oct. 1, 1924.

Remarks. Records good. No diversions between stations at Happy Isles Bridge and Pohono 

Bridge. About 1 cfs sewage effluent returns between stations. See Remarks for Merced 

River at Happy Isles Bridge, near Yosemite. 

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, in cubic feet per second)

1.4 

1.7 

2.0 

2.5 

3.0

145

242

4.0 

5.0 

7.0 

9.0

520

1,030

2,520

4,580

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

99

86

80

81

93

90

82

89

97

90

86

100

89

80

72

65

60

56

53

50

48

46

4f

5-1

61

80

113

114

90

104

128

2,482

80.1

4,920

Nov.

120

129

135

140

154

166

169

182

196

198

182

166

148

131

*117

106

100

92

81

71

72

68

65

62

60

57

57

54

53

52

3,383

113

6,710

Dec.

51

49

49

52

66

57

50

54

60

68

81

106

114

TIT

99

94

85

81

73

68

66

53

59

57

52

51

50

49

48

47

46

2,046

66.0

4,060

Jan.

46

45

43

42

41

40

40

40

35

33

35

45

~8T 101

68

*67

65

65

65

71

63

65

68

65

65

66

58

57

58

57

56

1,748

56.4

3,470

Feb.

58

61

58

57 FT"

58

60

66

63

66

134

224

305

317

302

325

335

302

264

240

220

214

276

333

492

412

351

333

-

5,983

214

11,870

Mar.

320

315

290

278

325

386

398

395

386

333

330

343

*305

288

283

281

260

253

233

231

235

216

214 2"2T

264

271

325

386

450

43T

444

9,697

313

19,230

Apr.

406

370

4C9

564

766

888

816

849

898

1,000

994

926

988

1,140

937

810

705

675

596

560

528

564

*569

650

745

860

1,030

1,250

1,550

1,530

24,573

819

48,740

May

1,570

1,520

1,440

1,800

2,100

2,310

2,460

2,110

1,590

1,490

1,230

1,070

1,070

1,100

994

1,160

1,550

2,440

2,960

1,750

1,580

1,620

1,520

1,420

1,620

2,120

2,560

2,490

*2,220

2,110

2,680

. 55,654

1,795

110,400

June

3,200

3,630

3,720

5.810

3,680

3,340

3,030

2,950

2,520

1.910

1,720

1,890

1,970

1,800

1,520

1,380

1,430

1,590

1,740

1,660

1,540

1,460

1,460

1,500

1,520

1,550

1,400

1,320

1,240

1,020

62,500

2,083

124,000

July

838

S35

618

587

592

564

506

454

441

435

409

372

348

325

300

293

286

271

253

227

202

*182

167

162

167

169

164

157

150

148 

TTff 148

10,630

343

21,080

Aug.

145

T4T

137

132

129

123

114

106

100

94

92

87

82

77

73

71

71

69

*68

68

66

66

63

61

61

62

60

57

54

51

48

2,629

84.8

5,210

Sept.

46

4T

39

38

36

36

35

34

34

33

34

35

36

36

36

36

36

36

35

34

33

32

30

29

28

28

26

25

26

26

1,010

33.7

2,000

Calendar year 1956: Max 5,740 Kin 46 Mean 983 Ac-ft 713,500

Water year 1956-57: Max 3,810 Mln 26 Mean 500 Ac-ft 361,700

Peak discharge (base, 2,900 cfs). May 18 (12 p.m.) 4,880 cfs (9.24 ft); June 4 (2 a.m.) 4,320 cfs 

(8.78 ft)._____________________

* Discharge measurement made on this day.
306 SAN JOAQUIN RIVER BASIN

South Fork Merced River near El Portal, Calif.

Location. Lat 37°39'05", long 119°53'05", in NW^-NE-J- sec. 29, T. 3 S., R. 19 E., on right 

bank 1,400 ft upstream from mouth and 6.2 miles west of El Portal.

Drainage area. 239 sq mi.

Records available. November 1950 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 1,400 ft (from topographic map).

Average discharge.--6 years (1951-57), 363 cfs (262,800 acre-ft per year).

Extremes. Maximum discharge during year, 5,780 cfs May 19 (gage height, 10.29 ft); minimum, 13 cfs Sept. 10.

1950-57: Maximum discharge, 46,500 cfs Dec. 23, 1955 (gage height, 18.70 ft), from 

rating curve extended above 2,700 cfs on basis of slope-area determination at gage 

height 17.63 ft; minimum, 5.4 cfs Sept. 14, 15, 16, 1955.

Remarks.--Records good except those for period of indefinite stage-discharge relation, 

 which are poor. Big Creek ditch diverts up to 50 cfs at times into Fresno River basin. 

Diversion of 0.5 cfs at Wawona for domestic use and irrigation of golf course.

Rating tables, water year 1956-57, except period of Indefinite stage-dlscharg 

relation (gage height. In feet, and discharge, In cubic feet per second)

Oct. 1 to Dec. 14

4.0 

4.2 

4.5

5.0

32

61

127

5.2

5.5

Dec. 15 to Sept. 30

12 6.0

17 6.5

27 7.0

44 8.0

76 9.0

150

340

615

980

1,940

3,350

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

.19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

27

25 

23

25

69

58

56

47

46

50

42

41

42

38

36

33

30

29

29

28

27

26

30

42

39

42

51

66

56

49

97

1,299

41.9

2,580

Nov.

72

60 

58

59

61

68

72

76

80

10

77

70

63

57

52

47

45

44

*42

39

37

39

38

37

36

36

36

36

3535-

1,587

52.9

3,150

Dec.

34

33 

32

34

66

78

50

39

49

53

*56

70

80

80

e65

e55

e45

e38

32

28

28

26

26

28

26

25

25

25

26

26

1,304

42.1

2,590

Jan.

24

23 

23

23

24

26

23

26

22

20

29

34

622

22?

120

*94

76

63

58

78

67

60

65

54

51

60

41

45

44

50

47

2,214

71.4

4,390

Feb.

48

55 

48

47

W

51

54

110

103

83

179

248

272

260

*218

229

237

200

176

163

153

153

756

1,120

1.380

555

*393

331

-

7,672

274

15,220

Calendar year 1956: Max 2,780 Mln 23

Mar.

354

359 

296

284

409

507

3TT

364

414

374

322

364

350

296

280

404

327

288

256

237

229

207

193

189

T93

204

233

260

284

276

276

9,443

305

18,730

Apr.

256

233 

256

331

430

478

451

435

435

484

495

446

468

543

456

398

354

404

354

340

296

 292

288

327

388

435

507

603

"680 708

12,571

419

24,930

May

750

694 

641

862

932

1,030

*1,070

579

603

579

501

440

424

462

409

456

616

1,470

*2.570

1,180

1,070

1,090

1,100

932

984

1,190

1,300

1,240

*1,100

. 1,010

1,260

28,524

920

56,580

June

1,430

1,460 

1,420

1,390

1,280

1,130

1,070

988

862

736

641

694

694

628

513

456

484

484

478

424

398

359

345

327

*305

300

264

248

229

.-..m

20,230

674

40, 130

July

166

144 

130

122

117

110

103

96

91

83

78

72

67

63

60

57

55

50

47

43

41

39

*37

36

35

33

32

31

29

28

26

2,121

68.4

4,210

Aug.

26

25 

26

26

25

25

26

26

25

24

23

22

21

20

20

19

19

18

*17

17

16

16

16

16

16

*16

16

16

16

16

16

626

20.2

1,240

Sept.

16

16 

15

14

14

14

14

14

T3" 13

13

13

13

13

14

14

15

17

20

19

17

16

16

15

14

14

14

14

14

15

443

14.8

879

Mean 483 Ac-ft 350,800

Water Water year year 1956-57: 1956-57: Max Max 2,570 2,570 Mln Mln 13 13 Mean Mean 241 241 Ac-ft Ac-ft 174,600 174,600

Peak discharge (base, 2,000 cfs). Feb. 24 (12 p.m.) 2,560 cfs (8.47 ft); May 19 (12:30 a.m.) 

5,780 cfs (10.29 ft); June 1 (11 p.m.) 2,070 cfs (8.11 ft).

» Discharge measurement made on this day.

e Stage-discharge relation Indefinite; discharge estimated on basis of records for Merced River at 

Pohono Bridge near Yosemlte and at Bagby.
SAN JOAQUIN RIVER BASIN 307

Merced River at Bagby, Calif.

Location. La t 37°36'40", long 120 0 07'50", in SE^ sec. 6, T. 4 S., R. 17 E., on left 

bank 800 ft upstream from highway bridge at Bagby and 0.3 mile upstream from Flyaway 

Gulch.

Drainage area. 912 sq mi.

Records available. November 1922 to September 1957. Published as "at Horseshoe Bend" 

November 1922 to September 1931 and as "at Kittridge" October 1931 to September 1947.

_. Water-stage recorder. Datum of gage is 779.52 ft above mean sea level, datum of 

J929. Prior to Nov. 24, 1928, water-stage recorder at site 5.0 miles downstream at 

different datum. Nov. 24, 1928, to Nov. 3, 1947, water-stage recorder at site 

3.8 miles downstream at different datum. Nov. 4, 1947, to Nov. 19, 1950, waterstage recorder at present site and datum. Nov. 20, 1950, to Nov. 4, 1951, wireweight gage at site 800 ft downstream at datum 51.62 ft lower.

Average discharge. 31 years (1923-27, 1929-30, 1931-57), 1,236 cfs (894,800 acre-ft 

per year).

Extremes.--Maximum discharge during year, 13,600 cfs May 19 (gage height, 8.68 ft); minimum daily, 44 cfs Sept, 28-30.

1922-57: Maximum discharge, 92,500 cfs Dec. 23, 1955 (gage height, 26.80 ft), 

from rating curve extended above 25,000 cfs on basis of change in contents in Lake 

McClure; minimum, 13 cfs Oct.-5, 1925, site then in use.

Remarks. Records good. No storage or large diversion above station..

Revisions (water years). WSP 1445: 1926-27, 1929(M), 1932, 1935(M), 1936, 1948-50(M).

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, In cubic feet per second)

0.8 

1.0

1.3 

1.6

35

72

154

268

2.0 

2.5 

3.0 

4.0

475

825

1,280

2,460

5.0 

6.0 

7.0

4,260

6,500

9,000

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

148

132

*112

110

129

178 

164

148

142

154

151

138

151

145

129

120

112

107

101

96

94

91

3?

115

110

115

138

199

188

168

239

4,218

136

8,370

Nov.

239

211

211

215

218

239 

260

264

282

500

291

273

247

222

199

181

171

168

*157

145

135

132

129

126

123

120

118

118

115

110

5,719

191

11,340

Dec.

107

TOT

107

107

132

222 

T5T

132

123

142

151

171

211

222

215

192

181

171

164

154

145

142

123

132

132

123

120

118

118

118

ITS J.J.O

4,561

147

9,050

Jan.

118

115

*110

112

110

115 

112

110

120

104

110

120

797 '557

319

247

218

199

185

226

268

211

199

199

203

196

188

161

168

164

164

6,235

201

12,370

Feb.

171

171

174

164

168

I6~8~ 161 

226

300

247

314

542

635

692

649

635

692

635

568

511

481

487

1,210

2,490

5.610

1,550

*1,130

937

19,718

704

59,110

Mar.

1,050

1,050

895

809

1,160

1,580 

1,256

1,100

1,160

1,140

975

991

1,050

876

817

1,040

919

825

745

700

670

621

580

354" 568

628

670

785

868

964

928

27,964

902

55,470

Apr.

876

785

783

982

1,280

1,500 

1,470

1,450

1,480

1,600

1,580

1,550

1,560

1,820

1,680

1,440

1,290

1,450

1,250

1,160

1,060

1,060

*1,050

1,130

1,260

1,590

1,610

1,910

2,280

2.420

42,118

1,404

85,540

May

2,490

2,480

2,190

2,650

5,170

5,570 

3,880

5,610

2,490

2,250

1,970

1,700

1,610

1,710

1.580

1,660

2,140

5,290

8.560

3J900

3,700

5,440

5,250

2,810

2,780

5,550

4,220

4,260

5,700

5,550

4,080

95,840

3,092

190, 100

June

5,030

5,540

*5,650

5.800

5,520

5,080 

4,420

4,580

5,680

2,960

2,460

2,620

2,720

2,560

2,120

1,890

1,890

2,010

2,150

2,100

1,970

1,810

1,760

1,780

1,770

1,780

1,660

1,560

1,480

1.260

87,410

2,914

175,400

July

*1.060

902

809

745

750

715 

678

594

561

548

529

487

441

415

591

564

554

339

324

500

268

247

226

211

199

205

205

192

185

178

174

15,570

458

26,920

Aug.

171 T6"8"

168

161

154

154 

148

142

135

129

125

120

115

110

104

99

99

96

94

91

*89

89

89

89

84

86

84

84

79

79

77

5,510

115

6,960

Sept.

72 m66

62

58

56 

56

54

52

50

49

49

50

52

52

52

62

62

64

64

62

58

54

52

49

47

45

44

4T

44

1,649

55.0

5,270

Calendar year 1956: Max 9,000 Mln 91 Mean 1,764 Ac-ft 1,280,000

Water year 1956-57: Max 8,360 Mln 44 Mean 856 Ac-ft 619,900

Peak discharge (base, 6,000 cfs}. Feb. 24 (11 to 12 p.m.) 6,020 cfs (5.80 ft); May 19 (5 a.m.) 

15,600 efs (B.GB ft); June 4 (4 a.m.) 6,810 cfs (6.13 ft).

* Discharge measurement made on this day.

510529 O - 59 - 21
308 SAN JOAQUIN RIVER BASIN

Lake McClure at Exchequer, Calif.

Location. Lat 37 0 35'10", long 120°16'05", near center of sec. 13, T. 43., R. 15 E., at 

 center of upstream face of Exchequer Dam on Merced River, 1 mile east of Exchequer and 

5.5 miles northeast of Merced Falls.

Drainage area.--1,020 sq mi, approximately.

Records available. April 1926 to September 1930 (daily gage heights; also summary of 

yearly contents in WSP 881), October 1930 to September 1957.

Gage. Indicator in powerhouse at foot of dam actuated by float in reservoir and selsyn 

motor circuit; indicator read every half hour when powerhouse is operating, once daily, 

at Mdnight, when not operating. Datum of gage is at mean sea level (levels by Merced 

Irrigation District).

Extremes. Maximum contents during year, 285,900 acre-ft June 7, 8 (elevation, 708.7 ft); 

minimum, 19,800 acre-ft Sept. 30 (elevation, 532.4 ft).

1926-57: Maximum contents, 290,800 acre-ft Dec. 4, 1950 (elevation, 710.5 ft); 

practically no storage at times in 1926, 1930-31, 1934.

Remarks . Reservoir is formed by concrete gravity-type dam completed in 1926; storage 

EJegan in April 1926. Usable capacity, 280,900 acre-ft between elevations 442.6 

(bottom of sluice valve) and 707.0 ft (top of spillway gates) above mean sea level. 

Water passes through powerplant at dam and down Merced River to diversion dam of 

Merced Irrigation District's main canal. Records show total contents at 12 p.m.; dead 

storage, 400 acre-ft or less.

Cooperation.--Gage-height record, furnished by Merced Irrigation District, obtained in 

connection with a Federal Power Commission project.

Revisions (water years) . WSP 881: 1926-32 (yearly summaries only). WSP 1345; 1951(M).

Capacity table, water year 1956-57 (elevation, In feet, 

and total contents, In acre-feet)

530

550

590

650

709

18,500

31,000

67,900

155,000

286,700

Total contents, In acre-feet, at 12 p.m., water year October 1956 to September 1957

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29

30 

31

i.'l

Oct.

130.800

129,100 

127 , 100 

125,200 

123,300

121,700 

119,900 

118,200 

116,600 

114,600

112,700 

110,400 

108,600 

107 , 800 

106,700

106,600

106,700 

106,800 

106,800 

107,200

107,300 

107,300 

107,400 

107,600 

107 , 800

108,000 

108,200 

108,500 

108,600 

109,000 

109,600

621.9 

-22,800

Nov.

109,600

110, 600 

110,900 

111,400 

112 , 000

112,400 

112,800 

113,300 

113, 900 

114,500

115,000 

115,400 

115,800 

116,300 

116,600

116, 900 

117,200 

117,500 

117,600 

118 , 000

118,100 

118,200 

118,600 

118,700 

118,800

119, 000 

119,300 

119,400 

119,600 

119,800

628.7 

+10, 200

Dec.

119,900

120,000 

120,200 

120,400 

120,600

121,200 

121,600 

121,700 

121,900 

122,200

122,300 

122,500 

122,700 

123, 100 

123,600

123,800 

124,300 

124,600 

124,700 

125,100

125,200 

125,500 

125,700 

126,000 

126,200

126,300 

126,500 

126,800 

127,000 

127,100 

127,300

633.5 

+7 , 500

Jan.

127,500

127,600 

127,800 

127,900 

128, 100

128,300 

128,400 

128,600 

128,900 

129,100

129,200 

129,500 

131,000 

132,300 

132,700

133,200 

133,700 

134,000 

134 , 300 

134,800

135,500 

135,800 

136,100 

136,400 

136,800

137 , 100 

137,500 

137,800 

138,100 

.138,500 

138,800

640.6 

+11,500

Feb.

139,000

139,300 

139,700 

139,800 

140, 200

140,400 

140,700 

140,900 

141,400 

141,900

142,400 

143,200 

144,600 

146,100 

147,300

148,500 

149,900 

151,100 

151,900 

152,800

153,900 

155,000 

157,500 

162,400 

169,900

173,100 

175,500 

177,300

-

661.9 

+38,500

Mar.

179,900

133,700 

135,300 

186,900 

189,500

192,000 

193,300 

194,100 

195,200 

196,400

197,100 

197,900 

198,700 

199,400 

199,800

200,800 

201,500 

203,600 

203', 800 

204 , 200

204,400

204,400 

204 , 000 

203,800 

204,000

204 , 000 

203 , 600 

203,200 

203,200 

203,400 

203,200

674.5 

+25,900

Apr.

202,100

200,600 

199,200 

198,100 

197,500

197,300 

196,800 

195,800 

195,400 

195,200

195,200 

195,000 

194,800 

195,000 

195,200

195,200 

195,000 

195,000 

194,800 

194,100

193,300 

192,000 

191,000 

190,600 

190, 100

189,500

189,500 

189,700 

192,000 

193,700

670.0 

-9,500

Hay

195,400

197,300 

199,800 

202,100 

205,300

209,500 

214,100 

218,400 

220,500 

222,100

223,000 

223,200 

223,500 

223,900 

224,200

224,400 

225,600 

228,100 

243,400 

248,500

253,500 

257,800 

261,000 

263,800 

266,400

270,500 

276,000 

281,300 

284,500 

285,400

285,400

708.5 

+91,700

June

285,100 

285,100 

284,800 

285,100 

284,500

284,800 

285,900

285,900 

285,400 

285,100

285,100 

285,100 

285,100 

285,100 

284,500

284,000 

283,700 

283,500 

284,000 

284,000

284,000 

283,500 

283,200 

283,200 

282,900

282,600 

282,400 

281,600 

280,800 

279,400

706.3 

-6 , 000

July

277,800

276,000 

273,900 

271,600 

269,200

267,200 

265,100 

262,500 

260,000 

257,500

254,500 

251,800 

248,800 

246,100 

243,000

239,800 

236,700 

233,600 

230,400 

227,400

224,400 

221,200 

218,000 

214,800 

211,500

208,600 

205,300 

201,900 

198,700 

196,000 

193,300

669.8 

-86, 100

Aug.

190,600

186,100 

183,100 

179,900 

178,500

175,300 

172,200 

169,100 

165,900 

162,900

159,900 

154,800 

151,800 

149,000 

146,000

143,100 

139,800 

136,800 

133,500 

130,300

127,100 

123,800 

120,800 

117,800 

114,800

112,000 

109,100 

106,400 

103,200 

100,500 

97,700

613.6 

-95,600

Sept.

95. 100 

92,700 

90, 100 

87 , 500 

84,700

81,800 

79,100 

76,400 

73,500 

70,800

67 , 900 

65,200 

62,700 

59,900 

57,300

54,700 

52,100 

49,700 

47,500 

45,100

42,800 

40,400 

38,000 

35,600 

33,100

30,600 

28 , 000 

25,400 

22,600 

19.800

532.4 

-77,900

Calendar year 1956.................... t -113,000

Water year 1956-57.................... t -112,600

t Elevation, In feet, at end of month. 

t Change In contents, In acre-feet.
SAN JOAQUIN RIVER BASIN 309

Merced River at Exchequer, Calif.

Location. Lat 37°34'55", long 120°16'45", on line between sees. 13 and 14, T. 4 S.,

H. 15 E., on right bank at Exchequer, 0.65 mile downstream from Lake McClure and

5 miles northeast of town of Merced Falls. 

Drainage area. 1,035 sq mi. 

Records available. April 1901 to November 1913 (published as "near Merced Falls'), November 1915 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 400 ft (from topographic map). Apr. 6, 

TT901, to Nov. 30, 1913, staff gage at site 5 miles downstream at different datum.

Nov. 22, 1915, to Apr. 28, 1922, staff gage and Apr. 29 to Oct. 24, 1922, water-stage

recorder, at site 1 mile upstream at different datum.

Average discharge.--56 years (1901-57), 1,355 cfs (981,000 acre-ft per year). 

Extremes. Maximum discharge during year, 5,890 cfs June 2 (gage height, 8.02 ft); mini- 

 mum, 23 cfs Oct. 22.

1901-13, 1915-57 (revised): Maximum discharge observed, 47,700 cfs Jan. 31, 1911

(gage height, 23.3 ft, site and datum then in use); no flow for part of Nov. 21, 1901. 

Revisions. The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede figures published in the water-supply

papers indicated.

WSP

511 

511

Water 

year

1919 

1920

Date

May 29 , 

Apr. 15,

1919 

1920

Discharge 

(cfs)

9,580 

10,000

Gage height 

(feet!

14.8 

15.0

Remarks. Records excellent except those below 500 cfs, which are good. No large diversion above station. Flow regulated by Exchequer powerplant and Lake McClure beginning 

in April 1926 (see preceding page). Records of chemical analyses for the water year 

1957 are given in WSP 1523.

Revisions.--Revised figures of discharge, in cubic feet per second, for the water years 

 1913-20 and 1942-43, superseding those published in WSP 481, 511, 961, and 981, are 

given herewith:

Date

1918 

Feb. 22 

24 

Mar. 7 

8 

11 

12 

13 

14 

19 

20 

27

1919 

May 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27

Discharge

4,750 

8,320 

12,800 

4,450 

4,310 

1 1 , 600 

6,380 

3,100 

14,300 

4,450 

4,030

5,680 

6,200 

6,020 

5,680 

6,020 

5,360 

,36O 

,6OO 

,890 

,750 

,170 

,450 

,750 

,900 

,600 

,450 

,170 

,170 

,170 

,170 

,900 

,360 

,680 

,050 

,450 

,170 

,030

Date

L919-Con. 

May 28 

29 

30 

31

1920 

May 1 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

Z5 

26 

27 

28 

29 

30 

31

1941 

Nov. 1 

2 

3 

4

Discharge

4,750 

8,740 

5,050 

3,350

3,610 

2,770 

2,880 

4,030 

3,750 

3,750 

2,990 

2,880 

3,100 

2,990 

3,220 

4,170 

4,750 

5,360 

6,020 

7,520 

8,320 

7,900 

6,760 

6,020 

4,750 

4,170 

4,600 

5,200 

5,520 

6,020 

5,850 

5,360

44 

44 

44 

44

Date

1941-Con. 

Nov. 5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

Dec. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14

Month

February 

March

Water year 1917-18 

Calendar year 1918

Water year 1918-19 

Calendar year 1919

Water y 

Calenda 

November

Calenda 

Water y 

November

ear 1919-20 

r year 192O

r year 1941 

ear 1941-42

1942 ..................................

Calendar year 1942 

Water year 1942-43

Discharge

44 

44 

44 

44 

44 

45 

39 

38 

45 

68 

68 

68 

59 

57 

72 

79 

79 

79 

77 

58 

53 

53 

53 

53 

43 

39 

39 

39 

41 

41 

41 

41 

41 

41 

41 

41 

41 

41 

41 

39

Cfs-days

23,770 

99,046 

425,393 

448,628

152,090 

357,288 

335,330

142,160 

357,707 

381,387

1,621 

1,098 

685,039 

651,121

1,522 

881 

654,017 

662,950

Date

1941-Con. 

Dec. 15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31

1942 

Nov. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21

Maximum

8,320 

14,300 

14,300 

14,300

8,740 

8,740 

8,740

8,32O 

8,320 

8,320

79 

41 

6,560 

6,160

62 

46 

6,160 

6,840

Discharge

34 

34 

33 

33 

32 

31 

30 

30 

30 

30 

30 

30 

30 

30 

30 

31 

32

52 

62 

47 

59 

62 

53 

53 

53 

53 

53 

53 

53 

53 

54 

56 

56 

56 

57 

57 

54 

52

Date

1942-Con. 

Nov. 22 

23 

24 

25 

26 

27 

28 

29 

30 

Dec. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29

Minimum

114 

441 

36 

36

3,350 

16 

16

2,580 

27 

30

38 

30 

18 

8

25

10 

8 

10

Mean

849 

3,200 

1,170 

1,230

Discharge

52 

52 

52 

52 

52 

39 

25 

25 

25 

26 

26 

26 

26 

26 

26 

26 

26 

26 

26 

46 

27 

36 

36 

36 

37 

37 

37 

37 

37 

37 

37 

37 

26 

21 

20 

19 

19 

19

Runoff In 

acre-feet

47,100 

196,000 

843,000 

889,000

4,910 302,000 

979 [ 709,000 

919 ' 666,000

4,590 i 282,000 

977 i 709,000 

1,040 1 756,000

54.0 ! 3,220 

35.4 : 2,180 

1,877 1,359,000 

1,784 1,291,000

50.7 3,020 

28.4 1,750 

1,792 1 1,297,000 

1,816 | 1,315,000
310 SAN JOAQUIN RIVER BASIN

Merced River at Exchequer, Calif. Continued

Rating table, water year 1956-57 (gage height, in feet, and discharge 

in cubic feet per second)

0.1 

.3

.6 

1.0 

1.5

169

314

2.0 

3.0 

4.0 

6.0 

8.0

490

990

1,680

3,460

5,860

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

,010 

,030

* ,040

,020

,030

,030

,020 

,020

,020

,060

,080

,060

,040

646

642

38

32

35

35

35

36 

35

36

36

36

35

35

34

34

35 

35

15,310

494

30,370

Nov.

35 

35

34

34

36

39

38 

37

37

36

36

37

37

37

38

38

38

38

38

*38

38 

38

38

38

38

38

38

38

38

38

1,116

37.2

2,210

. Dec.

37 

37

37

38

38

38

38 

38

38

38

38

38

38

38

38

39

39

39

39

39

39 

39

39

38

38

38

38

38

38

38

1,183

38.2

2,350

Jan.

38 

38

*38

38

38

38

38 

38

39

38

38

38

39

38

37

37

37

37

37

38

37 

37

37

37

39

42

42

42

42

38 

36

1,186

38.3

2,350

Feb.

37

37

37

40

47

45

44 

48

39

39

42

35

54

36

39

38

38

47

36

38

37 

39

36

33

33

32

32

*34

-

1,092

39.0

2,170

Calendar year 1956: Max 8,020 Min 32

Mar.

39

36

35

36

50

598

624 

625

627

616

658

640

643

629

658

629

630

644

628

639

640 

640

670

671

670

670

906

930

826

960 

1,090

18,357

592

36,410

Apr.

* ,470 

,560

,560

,550

,630

,790

,780 

,780

,780

,780

,780

,740

,720

,640

,560

,560

,560

,560

,560

,560

,560 

,560

,560

,560

,560

,560

,560

,560

,570

,570

48,540

1,618

96,280

May

* ,570 

,580

,590

,590

,590

,600

,600 

,620

,620

,620

,620

,620

,620

,620

,620

,610

,610

,620

,560

,540

,590 

,600

,630

,620

,580

,590

,570

,540

,180

,140 

,130

54,190

1,748

107,500

June

4,880 

5,610

*5,610

5,620

5,480

4,670

3,880 

4,390

3,830

3,110

2,690

2,640

2,720

2,740

2,530

2,260

2,110

2,090

2,140

2,190

2,150 

2,060

1,960

1,940

1,940

1,950

1,940

1,940

1,940

1,950

90,960

3,032

180,400

July

* ,950 

,900

,880

,880

,870

,850

,840 

,8BO

,860

,880

,920

,940

,920

,900

,880

,900

,930

,940

,870

,850

,860 

,860

,840

,800

,790

,790

,780

.770

,790

1 j 820 

1,790

57, 700

1,861

114,400

Aug.

,780 

,780

,780

,770

,740

,730

,700 

,670

,660

,670

,640

,600

,590

,600

,640

,620

,590

,610

,650

,660

* ,660 

,660

,600

,520

,480

,460

,450

,470

,460

,410 

,560

50,010

1,613

99,190

Sept.

1,310 

1,310

1,320

1,330

1,330

1,370

1.580 

1,330

1,330

1,360

1,360

1,350

1,290

1,280

1,280

1,280

1,230

1,190

1,170

1,170

1,140 

1,140

1,170

1,220

1,210

1,220

1,220

1,220

1,220

1,200

37,930

1,264

75,230

Mean 1,970 Ac-<"t 1,430,000

Water year 1956-57: Max 5,620 Min 32 Mean 1,034 Ac-ft 748,900

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 311

Merced River near Stevinson, Calif.

Location. --La t 37°22 I 15", long 120°55'45", in SWijNE£ sec. 36, T. 6 S., R. 9 E. , on right 

bank 5 miles upstream from mouth and 6 miles northwest of Stevinson.

Drainage area. 1,274 sq mi.

Records available.--October 1940 to September 1957.

Gage. Water-stage recorder. Datum of gage is 55.09 ft above mean sea level (levels by 

Bureau of Reclamation). Prior to Aug. 15, 1955, at datum 1.00 ft higher.

Average discharge. 17 years, 759 cfs (549,500 acre-ft per year).

Extremes. Maximum discharge during year, 3,700 cfs June 5 (gage height, 11.52 ft); minimum, 92 cfs Aug. 2.

1944-57: Maximum discharge, 13,600 cfs Dec. 5, 1950 (gage height, 19.05 ft, present datum); minimum, 48 cfs July 15, 1955.

Remarks.--Records good. Practically entire,flow is diverted above station during irrigation season; some return flow enters above. Flow regulated by Lake McClure (see 

p. 308 ). Records of chemical analyses for the water year 1957 are given in 

WSP 1523.

Rating tables, water year 1956-57 (gage height. In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used June 13 to Aug. 6, Sept. 8-30)

Oct. 1 to Feb. 12 Feb. 13 to Sept. 30

1.7 

2.0 

2.5 

3.0

130

163

228

316

1.4 

2.0 

3.0 

5.0

103

176

358

845

7.0 1,500

9.0 2,380

11.5 3,680

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

257

244

233

222

221

234

249

283

273

242

250

252

236

236

258

267

269

224

213

183

164

169

*162

160

160

159

159

161

162

1 60 

163

6,625

214

13,140

Nov.

161

160

160

162

159

152

153

151

150

148

148

148

153

168

171

169

162

154

152

149

*144

149

151

144

144

146

142

140

143

141

4,574

152

9,070

Dec.

141

T42

145

146

151

*150

158

161

159

159

158

158

156

155

156

156

158

158

155

154

154

155

156

158

160

160

158

159

158

156 

154

4,804

155

9,530

Jan.

158

159

160

160

159

158

*156

155

155

158

161

162

168

170

171

170

167

164

164

167

167

170

173

170

169

171

174

175

T?5

175 

175

5,136

166

10,190

Feb.

176

168

165

165

165

167

165

164

163

165

168

*167

166

164

163

162

163

160

158

156

158

160

167

172

275

367

3TT

264

5,164

184

10,240

Mar.

236

254

301

267

242

*303

420

625

682

710

733

733

728

728

728

728

733

723

720

720

710

708

715

685

585

489

418

358

358

291 

273

16,904

545

33,530

Apr.

247

213

235

249

242

291

275

262

*247

236

226

224

210 zzT

266

242

256

362

658

811

829

811

728

688

675

662

632

523

460

420

12,401

413

24,600

May

391

356

301

281

279

269

251

235

*228

211

202

208

223

245

281

328

354

384

441

525

615

658

678

708

705

675

618

501

464

414 

1,050

13,079

422

25,940

June

1,980

2,860

3,440

3,650

5.660

*3,590

3,180

2,460

2,650

2,480

1,840

1,300

1,130

1,100

1,100

1,030

848

660

532

496

511

508

492

404

326

273

233

230

196

194

43,353

1,445

85,990

July

213

223

T96

216

218

179

189

211

*204

163

153

148

140

162

182

158

144

139

130

140

150

173

160

159

144

138

138

166

164

127

111

5,138

166

10,190

Aug.

Ill

106

ITT

128

159

150

134

122

119

132

168

156

*153

145

143

 149

145

154

163

160

171

167

173

176

171

180

189

182

190

207 

226

4,840

156

9,600

Sept.

249

252

226

196

*171

162

172

199

204

187

163

150

187

200

199

221

240

254

275

251

258

236

226

223

218

223

219

252

260

299

6,572

219

13,040

Calendar year 1956: Max 8,230 Mln 140 Mean 1,429 Ac-ft 1,037,000

Water year 1956-57: Max 3,660 Mln 106 Mean 352 Ac 'ft 255,100

Discharge measurement made on this day.
312 SAN JOAQUIN RIVER BASIN

Merced River Slough near Newman, Calif.

Location.--Lat 37°21<35", long 120°57'40", In NE^NE^ sec. 3, T. 7 S., R. 9 E., on left

bank 0.1 mile downstream from bridge, 0.2 mile downstream from head of slough between

Merced and San Joaquin Rivers, and 4.5 miles northeast of Newman. 

Records available . October 1941 to September 1957. 

Gage.--Water-stage recorder. Datum of gage is 54.44 ft above mean sea level (levels by

Bureau of Reclamation). Prior to July 31, 1948, at datum 2.00 ft higher. 

Average discharge . 16 years, 82.2 cfs (59,510 acre-ft per year). 

Extremes. No flow during year.

1944-57: Maximum discharge, 6,410 cfs Dec. 5, 1950 (gage height, 11.29 ft), from

rating curve extended above 3,400 cfs; no flow for several months each year. 

Remarks. No flow since July 4, 1956. Slough flows from Merced River to San Joaquin River,

bypassing gaging station on San Joaquin River near Newman. Figures for calendar year

1956 are as follows:

Maximum daily discharge, 2,980 cfs; minimum, zero; mean, 120 cfs; runoff, 86,810

acre-ft.

San Joaquin River near Newman, Calif.

Location. La t 37°21'02", long 120°58'34", in SWj- sec. 3, T. 7 S., R. 9 E., on left

bank at bridge on Hills Ferry road, 300 ft downstream from Merced River and 3.5 miles 

northeast of Newman.

Drainage area. 9,990 sq mi.

Records available.--April 1912 to September 1957. Prior to Oct. 1, 1937, and subsequent 

to Oct. 1, 1943, flow that bypassed station at discharges above about 9,000 cfs not 

included in records.

Sage. Water-stage recorder. Datum of gage is 47.24 ft above mean sea level (levels by 

Bureau of Reclamation). Prior to Mar. 3, 1931, staff gage at various sites within 

60 ft of bridge and at same datum.

Average discharge.--45 years, 2,236 cfs (1,619,000 acre-ft per year).

Extremes. Maximum discharge during year, 4,120 cfs June 5 (gage height, 8.44 ft); minimum, 230 cfs Nov. 9, Dec. 20, 21 (gage height, 1.40 ft).

1912-57: Maximum discharge, 33,000 cfs Mar. 7, 1938 (gage height, 18.50 ft), 

including flow in Merced River Slough; minimum, 15 cfs Aug. 9, 10, 1924.

Remarks. Records good. Natural flow of stream affected by storage reservoirs, groundwater withdrawals, diversions for irrigation, and imported water; low flows consist 

mainly of return water from irrigated areas. Record for Merced River Slough (see 

above) shows flow bypassing station.

Rating table, water year 1956-57 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used June 18 to Sept. 30)

1.4 

2.0 

3.0

230

380

725

5.0 

7.0 

8.4

1,700

2,980

4,080

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21 

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Ac-It

Oct.

530

522

498

455

437

446

458 

508

522

470

491

488

470

498

502

491

505

480

536

550

474 

413

*359

300

290

295

310

290

298

288

13,469

434

26,720

Nov.

280

268

257

259

264

248

245 

243

237

254

254

278

288

300

505

298

278

252

248

234

*239 

250

257

266

268

273

266

257

252 

250

7,848

262

15,570

Dec.

252

243

239

237

245

*252

266 

266

266

252

250

250

250

243

248

239

237

237

234

250

230 

237

241

237

241

245

248

250

250

250 

248

7,613

246

15 , 100

Jan.

248

250

250

245

241

239

*257 

338

434

464

474

512

606 603"

575

544

512

488

470

470

464 

461

458

449

446

461

467

467

477

458

458

13,286

429

26,350

Feb.

449

419

410

410

398

386

*374 

374

498'

677

*673

*1,290

1,660

1,840

1,280

*793

617

564

522

470

455 

446

452

458

554

673

757

797

-

18,696

668

37,080

Mar.

813

841

917

1,020

1,780

*2,620

2,660 

2,380

1,800

1,480

1,380

1,320

1,280

1,240

1,200

1,200

1,200

1,170

1,160

1,140

1,130 

1,120

1,100

1,070

966

863

769

689

673

603

575

38,159

1,231

75,690

Apr.

572

544

547

550

530

547

508 

474

*467

449

428

416

404

398

45?

449

470

645

1,020

1,380

1,410 

1,400

1,290

1,240

1,300

1,220

1,140

998

872

781

22,907

764

45,440

May

673

610

550

522

512

491

440 

416

*404

380

362

371

401

431

491

561

634

638

733

917

1,220 

1,400

1,480

1,580

1,590

1,490

1,300

1,070

908

765

1,120

24,460

789

48,520

June

1,970

2,920

3,570

3,970

4,080

*4,050

3,740 

3,020

2,910

2,970

2,420

1,800

1,530

1,450

1,440

1,390

1,240

998

837

749

733 

729

689

642

564

488

422

428

416

383

52,548

1,752

104,200

July

398

410 380"

392

401

377

362 

401

*410

353

322

315

308

318

350

342

330

322

308

310

312 

338

322

320

305

310

312

332

345

295

295

10,595

342

21,010

Aug.

295

270

a290

a310

a350

a340

a340 

a330

a320

a330

a370

a370

*a390

383

350

350

342

356

368

374

389 

374

365

359

348

353

368

368

383

401

422

10,958

353

21,730

Sept.

440

Ho" 443

350

*365

374

342 

353

362

350

322

300

315

330

359

389

398

395

425

416

440 

410

380

374

368

359

353

383

407

440

11,352

378

22,520

Calendar year 1956 : Max 16,000 Mln 230 Mean 3,019 Ac-ft 2,192,000

Water year 1956-57 : Max 4,080 Mln 230 Mean 635 Ac-ft 459,900

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

Merced River near Stevlnson and San Joaquin River at Fremont Ford Bridge.
SAN JOAQUIN RIVER BASIN 

Orestimba Creek near Newman, Calif.

313

Location. Lat 3V"19'09", long 121"07'12", on line between sees. 17 and 20, T. 7 S., 

R. 8 E., on left bank 120 .ft downstream from highway bridge, 3 miles downstream from 

Oso Creek, and 5 miles west of Newman.

Drainage area. 135 sq mi.

Records available. January 1932 to September 1957.

Gage. Water-stage recorder. Datum of gage is 191.86 ft above mean sea level, adjustment 

of 1929.

Average discharge. 25 years, 14.7 cfs (10,640 acre-ft per year); median of yearly mean 

discharges, 6.9 cfs (5,000 acre-ft per year).

Extremes. Maximum discharge during year, 1,440 cfs Feb. 24 (gage height, 3.15 ft); no 

flow for several months.

1932-57: Maximum discharge, 6,450 cfs Jan. 21, 1943 (gage height, 5.95 ft), from 

rating curve extended above 1,200 cfs on basis of shape of 1952 and 1955 ratings 

defined by measurements to 5,000 cfs; no flow during several months each year.

Remarks. Records good. No storage or large diversion.

Revisions (water years). WSP 1445: 1932(M), 1938(P), 1940-4l(M), 1943(M), 1945, and 

1951(M), drainage area.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

0.3 

.4 

.5 

.6

0

.1 

1.2 

4.0

.9

1.0

1.3 

1.6 

1.9 

2.2

97 

180 

300 

47Z

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

(*)

(»)

0

0

0

Nov.

0

0

0

Dec.

(*)

0

0

0

Calendar year 1956 : Max 478

Jan.

(*)

0

0

0

Feb.

00"

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

23

205

411

*79

48

30

-

796

28.4

1,580

Mar.

46

27

18

15

*10

7.8

6.2

5.1

5.1

5.1

3.7

3.2

2.3

1.5

1.1

.9

.8

.5

.3

.1

**.!

.1

00"

0

0

0

0

0

0

0

159.9

5.2

317

Apr.

(*)

(»)

0

0

0

May

00"

.1

TT

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

. 0

0

0.3

.01

0.6

June

0

0

0

July

(*)

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Mln 0 Mean 15.3 Ac-ft 11,120

Water year 1956-57: Max 411 Mln 0 Mean 2.62 Ac-ft 1,900

Peak discharge (base, 50 cfs).--Feb. 24 (11:30 p.m.) 1,440 cfs (3.15 ft); Mar. 1 (5:00 a.m.) 

60 cfs (1.12 ft).

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.
314 SAN JOAQUIN RIVER BASIN

Falls Creek near Hetoh Hetohy, Calif.

Location. Lat 37°58', long 119°46', in NE£ sec. 3, T. 1 N., R. 20 E., on right bank in 

YoSemite National Park, 0.2 mile upstream from Wampana Falls, 1 mile upstream from 

mouth, and 2 miles northeast of Hetoh Hetohy.

Drainage area.--45.2 sq mi.

Records available.--November 1915 to September 1957. Published as "near Sequela" 1916-18. 

Gage.--Water-stage recorder. Altitude of gage is 5,600 ft (from topographic map). 

Average discharge.--41 years (1916-57), 143 cfs (103,500 acre-ft per year).

Extremes. Maximum discharge during year, 1,560 cfs May 18 (gage height, 6.42 ft); minimum, 0.2 cfs Sept. 29, 30.

1915-57: Maximum discharge, 6,660 cfs Nov. 19, 1950, Dec. 23, 1955 (gage height, 

9.00 ft, from floodmarks), from rating curve extended above 2,500 cfs on basis of

velocity-area studies; no flow at times during many summers.

Remarks. Records good except those for periods of ice effect, which are fair. No storage or diversion.

Cooperation.--Water-stage-recorder graph and nine discharge measurements furnished by 

city and county of San Francisco.

Revisions (water years).--WSP 531: 1917(M). WSP 931: 1938.

Rating tables, water year 1956-57, except periods of Ice effect (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

Z.08

E.2

2.4

2.6

2.8

3.0

3.5

4.0

25

41

BE 

135

E50

2.E 

2.4

1.5

2.3

3.4

6.5

12

2.6 

2.8 

3.0

3.5 

4.0 

4.5 

5.0 

6.0

34

55

135

250

380

560

1,170

Discharge cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

.8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

7.0

6.0

5.4

5.6

7.6

5.8

5.2

5.0

574

6.4

13

18

19

18

17

15

13

12

9.8

8.6

7.0

6,4

7.3

13

13

14

43

31

24

39

4j4

444,5

14.3

882

Nov.

39

43

45

47

50

53

56

65

77

11

74

66

56

47

38

34

30

26

23

El

19

17

16

15

14

14

13

13

13

12.

1,115

37.2

2,210

Dec.

12

12

IE

*13

17

19

15

15

16

17

18

19

18

17

16

15

15

15

14

15

15

13

16

15

15

15

15

15

15

15

15

474

15.3

940

Jan.

14

13

13

12

12

11

11

12

17

16

15

20

30- 60

20

17

15

13

13

15

14

13

12

12

12

IE

12

12

*12

12

12

484

15.6

960

Feb.

12

12

10

To

10

11

IE

15

20

30

159

167

182

161

147

185

198

147

122

103

98

88

131

202

277

*165

129

113

2,916

104

5,780

Mar.

109

102

80

89

167

145

120

108

108

97

89

99

88

80

76

72

65

62

58

64

70

58

53

59

68

*74

94

120

205

165

139

2,983

96.2

5,920

Apr.

113

89

91

126

171

205

186

192

198

220

235

215

225

292

E25

171

135

141

131

122

106

120

122

133

151

171

212

270

340

359

5,469

182

10,850

May

374

389

292

312

428

544

600

473

305

252

205

169

180

E18

188

232

374

704

935

417

*325

292

250

235

278

410

552

645

544

492

676

12,290

396

24,380

June

884

1,010

1,030

1,080

1,010

971

*770

788

688

410

442

536

570

565

434

410

404

417

512

532

508

466

462

496

500

*536

488

470

438

353

18,180

606

36,060

July

310

268

218

190

190

169

147

139

124

113

111

96

86

77

68

59

54

51

47

42

37

32

28

25

23

22

21

20

18

ii

2,819

90.9

5,590

Aug.

*15

14

13

12

11

10

9.9

9.1

8.3

7.6

7.2

6.7

6.3

6.0

5.5

5.0

4.8

4.5

4.4

4.1

4.8

3.5

3.2

3.0

2.7

2.4

2.3

2.3

2.1

2.0

LJs.

193.5

6.24

384

Sept.

1.6

1.4

1.3

*1.0

.8

.7

.6

.5

.4

.4

.4

.4

.4

.4

.4

.4

.6

.6

.8

.8

.8

.8

.7

.6

.5.

.4

.4

.3

.2

.2

19.0

0.63

38

Calendar year 1956: Max 1,060 Mln 5.0 Mean 191 Ac-ft 138,600

Water year 1956-57 : Max 1,080 Mln 0.2 Mean 130 Ac-ft 93,990

Peak discharge (base, 900 cfs). May 18 (10 p.m.) 1,560 cfs (6.42 ft); June 4 (6:30 a.m.) 1,300 cfs 

(6.16 ft); June 8 (8 a.m.) 932 cfs (5.67 ft).__________________________________________

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 7-26, Jan. 14 to Feb. 10.
SAN JQAQUIN RIVER BASIN 315

Hetoh Hetchy Reservoir at Hetch Hetchy, Calif.

Location. Lat 37°57' , long 119°47', in NW£ sec. 16, T. IN., R. 20 E., near center of 

O'Shaughnessy Dam on Tuolumne River at Hetch Hetchy in Yosemite National Park, 

1.5 miles downstream from Palls Creek.

Drainage area. 460 sq mi.

Records available.--May 1923 to September 1930 (daily gage heights; also summary of yearly 

contents in WSP 881), October 1930 to September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by city and 

county of San Francisco). Prior to Oct. 1, 1927, staff gage at same site and datum.

Extremes. Maximum contents during year, 361,500 acre-ft June 29 (elevation, 3,806.6 ft); 

minimum, 134,900 acre-ft Apr. 3, 4 (elevation, 3,671.6 ft).

1923-57: Maximum contents, 369,100 acre-ft Dec. 3, 1950 (elevation, 3,810.4 ft); 

no contents at times in 1929-31.

Remarks. Reservoir is formed by concrete gravity-type dam, completed to crest elevation 

 STT^e.S ft in 1923 and raised to 3,812.0 ft in 1937; storage began Apr. 6, 1923. Tenfoot drum gates were installed on spillway in 1949. Usable capacity, 360.400 acre-ft 

between elevations 3,512.0 (somewhat above bottom outlet) and 3,806.0 ft (top of drumtype spillway gates) above mean sea level. Water flows down Tuolumne River 15 miles 

to Early Intake, where part is diverted through Hetch Hetchy aqueduct to Moccasin 

Creek powerplant. At Moccasin Creek diversion dam, water reenters Hetch Hetchy aqueduct and flows into Crystal Springs Reservoir, which supplies city of San Francisco. 

Surplus water is spilled into Don Pedro Reservoir at Red Mountain Bar. Hetch Hetchy 

Reservoir is main storage unit of Heteh Hetchy water supply system for San Francisco.

Cooperation. Water-stage-recorder graph furnished by cjty and county of San Francisco.

Capacity table, water year 1956-57 (elevation, in feet, 

and usable contents, in acre-feet)

3,670

3,680

3,690

3,700

3,710

3,720

3,730

3,740

132,700

146,200

160,200

175,000

190,000

206,000

222,200

238,900

3,750

3,760

3,770

3,780

3,790

3,800

3,810

256,100

273,700

291,800

310,400

329,300

348,600

368,300

Usable eontenta, in thousands of acre-feet, at 12 p.m, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

(t)

(*)

Oct.

303.3 

302.0

300.7

299.2

298.1

296.8

295.5

294.4

293.1

291.8

290.7

289.6

288.5

287.4

286.0

284.9

283.6

282.2

280.9

279.5

278.2

276.6

275.5

274.2

272.8

271.7

270.9

269.8 

268.5

267.5

266.6

3,756.0

-37,800

Nov.

265.5 

264.5

263.6

262.6

261.7

260.6

259.6

258.9

258.2

257.5

256.6

255.7

254.9

253.8

252.6

251.6

250.4

249.3

248.0

246.9

245.5

244.4

243.2

241.8

240.6

239.4

238.1

236.9 

235.5

234.2

3,737.2

-32,400

Dec.

232.8

231.7

230.3

229.0

228.0

226.8

225.5

224.2

223.0

221.9

220.9

219.7

218.8

217.8

216.8

215.7

214.2

212.7

211.6

210.0

208.6

207.3

206.0

204.7

203.3

202.0

200.8

199.7 

198.3

197.0

195.7

3,713.5

-38,500

Jan.

194.5 

193.0

191.8

190.5

189.1

187.8

186.4

185.2

184.0

182.6

181.2

180.2

179.4

178.2

177.0

175.9

174.7

173.4

172.3

171.1

169.8

168.8

167.4

166.4

165.2

164.0

162.7

161.4 

160.2

159.1

157.8

3,688.3

-37,900

Feb.

156.6 

155.4

154.3

152.9

151.8

150.7

149.4

148.4

147.0

145.9

145.8

145.8

145.8

145.8

145.7

145.8

146.2

146.1

145.7

145.1

144.7

144.0

144T2

145.3

146.3

146.5

146.3

145.9

3,679.8

-11,900

Mar.

145.7 

145.3

144.8

144.4

144.8

145.1

145.3

145.1

145.1

144.8

144.6

144.2

143.8

143.2

142.8

142.4

141.9

141.2

140.5

139.9

139.2

138.6

137.7

136.9

136.2

135.7

135.3

13573"

135.7

135.8

3,672.3

-10,100

Apr.

135.7 

135.4

134.9

134.9

135.3

136.1

136.6

137.0

137.7

138.6

139.9

140.9

'141.9

143.4

144.3

144.8

145.3

145.7

145.8

145.9

145.9

145.9

145.9

146.2

146.6

147.3

148.4

150.4 

153.2

1E5.7

3,686.8

+19,900

'May

158.5 

161.4

163.8

167.0

171.6

177.1

182.8

186.9

189.7

192.4

194.5

195.9

197.2

198.7

200.0

202.2

205.7

212.3

219.7

223.5

226.8

229.7

232.2

234.3

237.2

242.5

249.7

256.8 

262.6

268.4

277.1

3,761.9

+121, 400

June

288.5 

302.4

315.6

330.1

343.4

351.9

352.7

351.1

349.6

347.6

348.6

350.2

351.5

351.5

350.6

349.8

349.4

350.0

350.9

"351.3

351.1

350.9

350.7

350.9

352.7

356.0

359.0

361.0 

361.5

361.2

3,806.4

+84 , 100

July

360.6 

359.8

360.0

361.0

361.4

361.4

361.4

361.2

361.0

360.8

360.8

360.4

360.2

359.8

359.2

358.8

358.2

357.4

356.8

356.0

355.2

354.3

353.3

352.3

351.3

350.4

349.4

348.2 

347.2

346.3

345.1

3,798.2

-16,100

Aug.

344.1 

343.2

341.8

340.8

339.5

338.3

337.2

336.0

334.7

333.5

332.2

330.8

329.7

328.3

327.0

325.7

324.5

323.0

321.7

320.5

319.0

317.7

316.4

314.9

313.6

312.2

310.8

309.4 

307.9

306.6

305.2

3,777.2

-39,900

Sept.

303.8 

302.4

300.9

299.2

297.9

296.6

295.3

293,9

292.6

291,1

289.6

288.4

286.9

285.4

284.2

282.7

281.3

280.0

278.4

276.9

275.7

274.2

272.6

271.4

269.8

268.4

266.9

265.5 

264.0

262.7

3,753.8

-42,500

Calendar year 1956..................... * -14,600

Water year 1956-57.........'............ t -41,700

t Elevation, In feet, at end of month. 

* Change In contents, In acre-feet.
316 SAN JOAQDIN RIVER BASIN

Tuolumne River near Hetch Hetchy, Calif.

Location.--Lat 37°56', long 119°48 I , in SE£ sec. 17, T. IN., R. 20 E., in Yosemite

National Park, on left bank 1 mile downstream from O'Shaughnessy Dam at Hetch Hetchy 

and 2.5 miles downstream from Falls Creek.

Drainage area. 462 sq mi.

Records available. December 1914 to September 1957. Published as "below Hetch Hetchy 

dam site near Sequoia" 1915-18.

Gage. Water-stage recorder. Altitude of gage is 3,450 ft (from topographic map). 

Average discharge.--42 years (1915-57), 999 cfs (723,200 acre-ft per year).

Extremes. Maximum discharge during year, 9,060 cfs June 7 (gage height, 12.56 ft); minimum daily, 708 cfs Sept. 17.

1915-57: Maximum discharge, 12,900 cfs June 1, 1943 (gage height, 13.90 ft); minimum daily, 1.3 cfs Nov. 2,'3, 1923.

Remarks.--Records excellent. Flow regulated by Hetch Hetchy Reservoir beginning in April 

1923 (see preceding page). No diversion above station.

Cooperation. Water-stage-recorder graph and seven discharge measurements furnished by 

city and county of San Francisco.

Rating table, water year 1956-57 (gage height. In feet, 

and discharge, In cubic feet per second)

5.9

7.0 

8.0 

9.0

680

1,090

1,640

2,440

10.0

11.0

12.0

3,570

5,290

7,570

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8 

9

10

11

12

13

14

IS

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

734

731

728

728

724

720

734

734 

734

731

728

724

720

720

734

738

734

731

728

738

745

TSz

738

738

734

733

742

738

754

734

731

22,707

732

45,040

Nov.

728 

724

731

734

731

731

728

724 

724

731

734

731

731

728

724

731

734

731

728

*724

734

738 

731

731

724

720

717

728

734

731

21,870

729

43,380

Dec.

728

73~8~ 720

7T2~ 745

738

734

731 

728

728

728

734

742

734

738

738

734

738

738

734

734

742 

734

731

728

724

734

745

742

TXQ lOty

734

22,776

735

45,180

Jan.

728 

724

720

73T

742

734

731

728 

724

731

745

745

742

734

731

724

724

a725

a740

a760

a750

a750 

a740

a740

a740

a750

a740

a740

a750

a750

a750

22,866

738

45,350

Feb.

742 

734

731

734

745

738

731

724

720

742

748

745

742

742

742

742

738

738

738

738

738

742 

752

759

770

771

*770

770

20,828

744

41,310

Mar.

766 

766

762

759

773

770

766

762 

773

766

762

762

759

756

752

752

748

745

738

, 734

745

748 

745

738

734

731

728

724

74S

766

766

23,344

753

46,300

Apr.

766 

762

759

756

759

766

770

759 

748

756

762

770

773

762

762

766

770

773

773

776

776

776 

776

776

780

784

787

798

808

818

23,167

772

45,950

May

829

TTS

748

759

776

759

766

748 

745

756

762

766

745

738" 738

745

756

773

759

745

752

748 

752

748

745

756

745

748

759

745

*745

23,429

756

46,470

June

762 

745

752

776

829

2,640

6,140

7.050 

5,826

4,190

2,690

*2,850

3,490

3,760

3,430

3,030

2,830

2,880

3,270

3,610

3,610

3,460 

3,360

3,460

2,730

2,120

2,140

2,230

2,700

2,650

90, 004

3,000

178,500

July

2.400 

*2,176

1,310

866

1,140

1,240

1,180

1,090 

1,030

970

910

840

776

752

748

745

742

742

738

734

734

731 

728

724

720

734

734

731

728

724

720

29,131

940

57,780

Aug.

717 

*73T

734

731

728

720

717

734 

738

734

728

724

717

731

731

728

724

734

728

720

748

73? 

734

731

738

738

734

731

728

734

738

22,641

730

44,910

Sept.

745 

745" 748

742

738

738

731

728 

724

720

717

717

*710

728

734

731

708

731

738

738

738

734 

734

734

731

720

717

734

728

724

21,895

730

43,430

Calendar year 195S: Max 7,860 Mln 710 Mean 1,587 Ac-ft 1,152,000

water year 1956-57: Max 7,050 Mln 708 Mean 944 Ac-ft 683,600

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of unpublished records for Tuolumne River 

above Early Intake.
SAW JOAQUIN RIVER BASIN 317

Lake Lloyd near Hetch Hetchy, Calif.

Location. Lat 37°58', long 119°55', in wl sec. 5, T. IN., R. 19 E., on upstream face of 

Cherry Valley Dam on Cherry Creek, 3.2 miles upstream from Eleanor Creek, 7 miles north 

of Early Intake, and 7.3 miles northwest of Hetch Hetchy.

Drainage area. 117 sq mi.

Records available. August 1956 to September 1957.

Gage. Staff gage read once daily. Datum of gage is at mean sea level (levels by city and 

county of San Francisco).

Extremes. 1956; Maximum contents during period August to September, 101,200 acre-ft 

Aug. 26 (elevation, 4,591.7 ft); minimum, 93,400 acre-ft Sept. 22 (elevation, 4,585.7 

ft).

1956-57: Maximum contents during water year, 269,300 acre-ft July 1-3 (elevation, 

4,700.6 ft); minimum, 69,200 acre-ft Feb. 8-10, 12 (elevation, 4,566.2 ft).

Remarks. Reservoir is formed by a rock-fill dam completed in 1956; storage began in 

December 1955. Usable capacity, 268,180 acre-ft between elevations 4,430 (bottom of 

sluice gates) and 4,700 ft (top of spillway gates) above mean sea level. Additional 

storage of 20 acre-ft is not available for release. Water is released down Cherry 

Creek for power development and domestic supply as part of Hetch Hetchy system of city 

and county of San Francisco. Records, including extremes, show usable contents at 

8 a.m.

Cooperation. Record of gage heights furnished by city and county of San Francisco.

Capacity table, Aug. 26, 1956, to Sept. 30, 1957 (elevation, In feet, and 

usable contents, In acre-feet)

4,566

4,570

4,580

68,900

73,600

86,000

4,600

4,620

4,640

112,000

140,000

170,000

4,660

4,680

4,701

201,000

253,700

270,000

Usable contents, in thousands of acre-feet, at 8 a.m., August to September 1956

Day

1

2

3

4

5

6

Aug.

-

-

-

-

-

-

Sept.

99.7

99.4

98.9

98.6

98.4

98.0

Day

7

8

9

10

11

12

Aug.

-

-

-

_

-

-

Sept.

97.6

97.2

97.0

96.6

96.3

96.1

Day

13

14

15

16

17

18

Aug.

-

-

-

_

-

-

Sept.

95.7

95.3

94.9

94.9

94.9

94.5

Day

19

20

21

22

23

24

Aug.

-

-

-

_

-

-

Sept.

94.1

93.7

93.5

93.4

93.5

93.5

Day

25

26

27

28

29

30

31

Aug.

_

101.2

101.0

101.0

100.8

100.5

100.1

-

Sept.

93.5

93.5

93.5

93.5

93.5

93.5

-

-6 , 600

Usable contents, In thousands of acre-feet, at 8 a.m., water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14.

15

16

17

16

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

Ifcf

93.1

93.0

92.7

92.3

92.1

91.7

91.4

91.2

90.9

90.6

90.4

90.1

89.9

89.6

89.4

89. -1

88.7

88.3

88.1

87.8

87.4

87.2

86.9

86.6

86.8

86.8

86.5

86.5

577^

4,580.8

-6,500

Nov.

87.2 

87.2

87.0

87.0

87.0

87.0

87.2

87.2

87.3

87T3"

87.3

87.3

87.3

87.0

86.8

86.6

86.3

86.1

86.0

85.5

85.3

85.0

84.6

84.3

84.0

83.8

83.4

83.0

82.8

82.4

4,577.1

-4,600

Dec.

82.0 

81.8

81.5

81.2

81.0

80.8

80.7

80.5

80.3

80.2

80.0

79.8

80.4

80.5

80.4

80.3

80.0

79.9

79.7

79.6

79.3

78.9

78.7

78.4

78.1

77.8

77.6

77.3

77.1

76.7

76.5

4,572.3

-5,900

Jan.

fc*

75.6

75.3

74.8

74.6

74.3

74.1

73.8

73.5

73.1

74.1

74.1

73.8

73.6

73.6

73.4

73.2

73.1

72.9

72.9

72.7

72.5

72.3

72.1

72.0

71.7

71.5

71.3

71.0

70^9

4,567.7

-5,600

Feb.

70.6 

70.3

70.1

70.0

69.7

69.5

69.3

69.2

5FT

69.2

69.5

69.3

71.1

72.2

73.1

73.8

75.2

76.0

76.7

77.3

77.8

78.4

79.4

80.7

83.3

84.5

85.5

86.3

-

4,580.2

+15,400

Mar.

86.8 

87.5

88.1

88.5

89.4

90.5

91.3

92.1

92.9

93.5

94.0

94.5

95.2

95.7

96.1

96.7

97.1

97.4

97.7

98.1

98.5

99.0

99.3

99.6

100.0

100.5

101.0

101.8

102.8

104.0

104.9

4,594.5

+18,600

Apr.

105.6 

106.1

106.7

107.5

108.4

110.0

111.4

112.6

113.7

115.2

116.6

117.7

118.0

118.6

119.2

119.2

119.3

119.8

120.4

121.1

121.7

122.2

122.0

121.3

120.6

120.2

120.0

120.3

120.7

122.5

__ ____

4,607.4

+17,600

May

124.2 

126.0

127.7

129.9

132.3

135.2

138.6

141.9

144.0

145.3

146.4

147.5

148.3

149.5

150.5

151.7

153.7

156.6

165.6

168.2

170.2

171.9

173.4

174.8

176.2

178.2

181.1

184.4

187.4

189.9

193.0

4,655.0

+70,500

June

197.0 

201.7

206.1

210.6

215.0

219.3

222.7

226.1

229.1

231.4

223.2

235.4

237.8

240.4

242.2

244.0

245.3

247.0

248.9

251.0

252.9

254.8

256.5

258.5

260.2

262.1

264.0

265.8

267.2

268.4

4,700.1

+75,400

July

269.3

269.3

269.3

269.1

269.1

269.1

268.9

268.9

268.9

268.7

268.9

268.7

268.6

268.6

268.6

267.2

263.7

260.4

256.4

252.2

248.6

244.6

240.7

236.8

232.9

228.9

225.1

221.1

216.9

213.0

208.8

4,664.9

-59,600

Aug.

204.3 

200.7

196.8

192.9

189.0

184.9

180.9

176.9

173.0

169.0

165.1

160.9

157.8

153.0

149.1

145.3

141.3

137.3

133.8

129.9

126.2

123.2

120.2

117.7

116.6

115.6

115.0

114.8

J.14.4

114.0

113.5

4,600.9

-95,300

Sept.

113.3 

112.8

112.6

112.2

111.8

111.5

111.1

110.7

110.4

110.0

109.6

109.4

109.0

108.7

108.4

108.0

107.6

107.3

106.9

106.5

106.3

105.9

105.9

105.9

105.7

105.5

105.2

104.9

104.5

104.1

4,593.9

-9,400

Calendar year 1956.................... *

Water year 1956-57.................... * +10,600

t Elevation, In feet, at end of month. 

* Change In contents, In acre-feet.
318 SAN JOAQUIN RIVER BASIN

Cherry Creek below Cherry Valley Dam, near Hetch Hetchy, Calif.

Location.--Lat 37°58', long 119°55', In SWi sec. 5, T. IN., R. 19 E., on right bank 

0.4 mile downstream from Cherry Valley Dam, 2.8 miles upstream from Eleanor Creek, 

6.7 miles north of Early Intake, and 7.2 miles west of Hetch Hetchy.

Drainage area.--118 sq mi.

Records available. November 1956 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 4,337.08 ft above mean sea level (levels 

oy city and county of San Francisco).

Extremes.--Maximum discharge during period, 2,120 cfs July 17 (gage height, 8.69 ft); 

minimum daily, 1.6 cfs Apr. 10.

Remarks.--Records good. Flow regulated by Lake Lloyd (see preceding page). No diversion above station.

Cooperation. Water-stage-recorder graph and 23 discharge measurements furnished by city 

and county of San Francisco.

Rating table, Nov. 1, 1956, to Sept. 30, 1957 (gage height, In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used May 2 to July 15, Aug. 26 to Sept. 30)

2.3 

2.5

1.6 

2.3 

3.4 

5.0

10

2.7 

3.0 

3.5 

4.0 

5.0

136

324

6.0 

7.0 

8.0 

9.0

570

960

1,560

2,400

Discharge, in cubic feet per second, November 1956 to September- 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct. Nov.

107 *m

2Q2~ 202

202

202

200

200

200

200

200

200

193

189

189

189

188

188

188

188

196

188

188

188

188

188

188

188

188

188

5,688

190

11,280

Dec.

188 

188

184

184

188

186

184

184

184

184

186

186

186

186

186

186

186

*188

188

188

188

189 188"

188

188

188

188

188

188

188

179.

5,780

186

11,460

Jan.

177

IsTT

186

186

186

186

186

188

186

184

184

186

188

186

186

184

184

184

184

184

184

189

T84

184

184

184

184

184

184

184

184

5,730

185

11,370

Feb.

184 

184

184

184

184

184

IBS' 186

184

184

184

184

184

184

93

9.5

9.2

13 8.6

13

14

14

18

20

19

16

15

15

2,857.3

102

5,670

Mar.

15

15

15

12

4.8

3.2

*3jO

47?

9.5

8.6

8.3

9.5

8.6

8.3

8.6

8.9

8.3

7.9

*7.9

7.9

7.6

7.3

7.1

7.1

7.1

7.1

7.1

7.1

7.9

7.3

7.3

254.8

8.22

505

Apr.

7.1 

6.8

6.8

6.8

6.8

6.8

6.8

5.0

2.2

1.6

*81

*356

482

482

482

375

304

130

5.7

5.5

5.2

282

582

838

838

838

838

843 455"

256

8,538.1

285

16,940

May

256

152

7.9

776" 7.6

7.6

7.6

8.6

7.9

7.9

8.3

8.3

8.6

8.6

8.3

8.3

8.3

14

12

10

11

10

10

9.9

9.5

9.2

9.2

9.2

9.2

9.2

9.2

621.0

20.0

1,230

June

8.9 

8.9

8.9

8.9

8.9

8.9

*8.9

8.9

8.9

8.9

8.9

8.9

*8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

11

8.9

575" 8.6

8.6

8.6

8.6

*8.6

8.6

175

431.1

14.4

855

July

562 

470

*410.

365

344

326

306

272

248

227

208

189

172

156

55T

1,500

*1,560

2,000

2,000

1,880

1,760

1,770

1,770

1,770

1,790

1,810

1,810

1,820

1,850

*1, 880

1,860

33,592

1,084

66,630

Aug.

1,850 

l,85o

1,830

1,810

1,830

1,840

1,810

1,830

1,830

1,820

1,810

1,810

1,820

1,810

1,790

1,770

1,770

1,750

1,730

1,730

1,530

1,430

1,150

805

545

313

186

176

169

162

T An lot

42,718

1,378

84,730

Sept.

162 

162

162

162

*154

164

174

174

177

177

177

177

177

181

TST

179

179

179

179

179

179

97

35

SB- 28

167

167

167

167

167

4,715

157

9,350

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 319

Lake Eleanor near Hetch Hetchy, Calif.

Location. Lat 37°58 I , long 119°53', In Nwi sec. 3, T. IN., R. 19 E., on downstream side 

of dam on Eleanor Creek, 720 ft from left bank, 1.7 miles upstream from Mlguel Creek, 

and 5,5 miles northwest of Hetch Hetchy.

Drainage area.--79 sq ml, approximately.

Records available. October 1919 to September 1930 (dally gage heights; also summary of 

yearly contents In WSP 881), October 1930 to September 1957.

Gage.--Water-stage recorder. Datum of gage Is at mean sea level (levels by city and 

county of San Francisco). Prior to Oct. 1, 1927, staff gage at same site and datum.

Extremes. Maximum contents during year, 24,600 acre-ft June 4 (elevation, 4,658.3 ft); 

no usable contents Oct. 2-20.

1919-57: Maximum contents. 31,000 acre-ft Dec. 11, 1937, from capacity table then 

in use (elevation, 4,663.4 ft); no usable contents at times in 1921, 1929-30, 1956.

Remarks. Reservoir is formed by multiple-arch dam completed In 1918; storage began 

June 23, 1918. Usable capacity, 26,100 acre-ft between elevations 4,620.9 (natural 

outlet of old lake) and 4,660.0 ft (top of 5-foot flashboards) above mean sea level. 

Water is released down Eleanor Creek for power development and domestic supply as part 

of Hetch Hetchy system of city "and county of San Francisco. Records, except extremes, 

show usable contents at 12 p.m.

Cooperation.--Water-stage-recorder graph furnished by city and county of San Francisco. 

Revisions (water years).--WSP 1445: 1938(M).

Capacity table, water year 1956-57 (elevation, in feet, and usable contents, in acre-feet)

4,608

4,620

4.622

4.623

4.624

4.625

4,626

4,628

4,630

4,632

550

1,480

2,450

,580

4,634 4,700

4,636 5,960

4,638

4,640

4,642

4,644

7,330

8,710

10,300

11,900

4,646 13,500

4,648 15,300

4,650

4,652

4,654

4,656

17,000

18,800

20,600

22,400

4,658 24,300

4,660 26,100

Usable contents, in acre-feet, at 12 p.m., water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

M(*)

Oct.

23 

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

14

33

47

74

147

246

246

E82

371

594 

683

4,626.3

-178

Nov.

683 

BIT

906

996

1,140

1,290

1,430

1,620

1,820

1,960

2,110

2,260

2,350

2,450

2,510

2,560

2,620

2,680

2,730

2,730

2,790

2,840

2,840

2,840

2,900

2,900

2,900

2,960

2,960

2,960

4,630.9

+2,280

Dec.

2,960 

2,960

2,960

3,010

3,130

3,180

3,240

3,300

3,350

3,460

3,690

3,920

4,140

4,370

4,540

4,650

4,700

4,820

4,870

4,930

4,990

5,040

5,100

5,160

5,160

5,210

5,270

5,270

5,340

5,340 

5,410

4,635.2

+2,450

Jan.

5,410 

5,480

5,480

5,480

5,540

5,540

5,610

5,610

5,680

5,680

5,750

5,960

6,580

6,850

6,990

7,190

7,330

7,470

7,540

7,740

7,880

8,020

8,090

8,230

8,290

8,430

8,500

8,500

8,640

8,870 

8,870

4,640.2

+3,460

Feb.

8,950 

9,020

9,180

9,260

9,340

9,420

9,500

9,660

9,820

10,100

10,900

12,000

13,000

13,800

14,300

14,800

15,300

15,400

15,600

15,700

15,700

16,000

16,600

18,000

19,200

20,000

20,400

20,700

_

4,654.1

+11,830

Mar.

21,000 

21,200

21,300

21,600

22,200

22,200

21,900

21,400

21,100

20,600

20,100

19,700

19,100

18,900

18,900

18,600

18,300

18,100

17,700

17,400

17,300

17,300

17,300

17.200

17,200

17,300

17,400

17,700

18,400

18,900 

19,200

4,652.5

-1,500

Apr.

19,400 

19,500

19,500

19,700

20,000

20,100

20 200

20,200

20,100

20,000

19,900

19,700

19,500

19,800

19,700

19,400

19,100

18,800

18,300

17,900

17,400

16,900

16,600

16,200

16,000

15,800

lS,800

16,000

16,200

16,600

4,649.5

-2,600

May

16,800 

17,200

17,300

17,400

17,900

18,400

19,100

19,400

19,300

19,100

18,700

18,200

18,000

17,800

17,400

17,300

17,400

20,400

23,100

23,500

23,800

23,700

23,600

23,500

23,800

24,100

24,200

24,200

24,200

24,100 

24,300

4,658.0

+7,700

June

24,500 

24,500

24 , 500

24,500

24,400

24,300

24,100

24,000

23,900

23,700

23,400

23,200

23,000

22,700

22,300

21,900

21,400

21,000

20,800

-20,500

20,100

19,800

19,500

19,100

18,900

18,500

18,200

17,800

17,400

16.900

4,649.9

-7,400

July

16,500 

15,900

15,300

14,700

14,000

13,300

12,600

12,000

11,300

10,600

9,980

9,180

8,430

7,740

7,060

6,920

6,920

6,920

6,920

6,850

6,850

6,850

6,780

6,780

6,780

6,780

6,710

6,640

6,640

6,580 

67550

4,636.9

-10,320

Aug.

6,510 

6,440

6,370

6,300

6,230

6,230

6,160

6,090

6,090

6,020

5,960

5,890

5,820

4,750

5,680

5,610

5,610

5,540

5,480

5,410

5,270

5,210

5,210

5,160

5,100

5,040

4,990

4,930

4,870

4,870 

4,820

4,634.2

-1,760

Sept.

4,760 

4,760

4,700

4,650

4,590

4,590

4,540

4,480

4,420

4,370

4,310

4,310

4,250

4,200

4,140

4,080

4,030

4,030

3,970

3,970

3,920

3,690

3,300

2,900

2,680

2,680

2,620

2,560

2,510

2,450

4,630.0

-2,370

Calendar year 1956.................... t -17,990

Water year 1956-57.................... t +1,770

t Elevation, in feet, at end of month. 

* Change in contents, in acre-feet.
320 SAN JOAQDIM RIVER BASIN

Eleanor Creek near Hetch Hetchy, Calif.

Location. Lat 37 8 58', long 119°53', in SWir sec. 3, T. 1 N., R. 19 E., in Yosemite 

National Park, on right bank 0.6 mile downstream from Lake Eleanor Dam, 1.1 miles 

upstream from Miguel Creek, and 5.5 miles northwest of Hetch Hetchy.

Drainage area. 80 sq mi, approximately.

Records available. June to October 1901, November 1909 to September 1957. Published as 

"at Eleanor Trail Crossing" 1901 and as "near Sequoia" 1910-18.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,600 ft (from 

Topographic map). June to October 1901 staff gage at site 1.5 miles upstream at different datum. November 1909 to November 1915 staff gage and water-stage recorder at 

site 1 mile upstream at different datum.

Average discharge. 47 years (1910-57), 222 cfs (160,700 acre-ft per year).

Extremes. Maximum discharge during year, 866 cfs June 4 (gage height, 4.81 ft); no flow 

Oct. 22-26.

1909-57: Maximum discharge, 11,700 cfs Nov. 19, 1950 (gage height, 14.95 ft), from 

rating curve extended above 2,000 cfs on basis of velocity-area studies; no flow at 

times during 1910, 1930-31, 1933, 1956.

Remarks. Records excellent. No diversion. Flow regulated by Lake Eleanor beginning in 

1918 (see preceding page).

Cooperation. Water-stage recorder graph and 12 discharge measurements furnished by city 

and county of San Francisco.

Rating tables, water year 1956-57 (gage height, In feet, and 

discharge, In cubic feet per second)

Oct. 1-26, Sept. 26-30 Oct. 27 to Sept. 25

0

1.0

2.8

5.3

8.5

1.7 

2.0 

2.3 

2.6 

E.9

18

37

69

107

149

1.2

1.3

1.4

1.5 

1.7 

2.0

0.2

3.0

6.0

10

20

42

2.5

3.0 

3.5 

4.0 

4.8

104

189

317

482

860

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

~SS 135

57

45

35

29

25

*22

19

18

17

16

16

16

16

15

14

13

12

12

7.5

0

0

0

*0

0

8.2

18

18 

*13

12

694.7

22.4

1,380

Nov.

47

19

19

20

20

20

20

19

.0

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.4

8.4

8.4 

8 .4

248.8

8.29

493

Dec .

5.1

274

2.4

2.4

2.7

2.7

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

*2.2

T7£

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2 

2.2

2.2

74.9

2.42

149

Jan.

2.2 2T2-

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.7

4.2

37t>

2.7

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.7

2.7

3.0

3.0 

3.0

77.6

2.50

154

Feb.

2.7

2.4

274

2.4

2.7

2.7

3.6

4.2

3.6

4.2

5.1

3.6

3.3

3.3

119

206

206

208

2M

193

185

185

189

191

189

183

181

181

-

2,670.2

95.4

5,300

Mar.

*181

1ST

181

181

185

395

51B~ 532

520

528

520

520

516

303

252

335

335

*332

332

332

233

183

189

189

189

189

189

189

191

191 

193

9,314

300

18,470

Apr.

193

193

244

288

344

396

396

453

528 528"

528

524

524

524

520

520

516

516

*509

505

501

497

497

493

493

475

475

482

486 

490

13,638

455

27,050

May

490

490

*497

497

501

501

497

501

505

509

501

497

497

497

497

493

493

501

528

574

605

632

614

574

457

497

614

695

665

628

641

16,688

538

33,100

June

740

827

827

832

810

761

660

605

556

493

532

544

536

528

520

509

505

505

501

497

497

497

493

493

493

*490

490

490

486

482

17,199

573

34,110

July

478

47?

475

471

468

464

460

457

453

446

443

439

436

429

422

119

29

29

29

29

28

28

28

28

28

28

28

28

28 

28

*27_

7,361

237

14,600

Aug.

E5

26

26

26

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

28

25

22

22

22

22

22

22

22

*22

21

21

749

24.2

1,490

Sept.

21

21

21

21

19

20

20

20

20

20

20

20

20

20

20

20

20

21

21

21

21

114

181

191

T27

18

TS

19

19

19

1,133

37.8

2,250

Calendar year 1956 : Max 1,400 Mln 0 Mean 296 Ac-ft 214,900

water year 1956-57 : Max 832 Mln 0 Mean 191 Ac-ft 138,500

Discharge measurement or observation of no flow made on this day.
SAN JOAQUIN RIVER BASIN 321

Cherry Creek Canal near Early Intake, Calif.

Location.--Lat 37°53', long 119°57', in Sj sec. 36, T. IN., R. 18 E., on left bank 

1.3 miles northeast of Early Intake and 9.5 miles southwest of Hetch Hetchy.

Records available.--April 1956 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 2,700 ft (from topographic map).

Extremes.--1956-57: Maximum daily discharge, 185 cfs Aug. 18, Sept. 2, 17, 18, 1957; 

minimum daily, 58 cfs Aug. 14, 1956.

Remarks.--Records good. Canal diverts from left bank of Cherry Creek near Early Intake 

for power development at Early Intake as part of Hetch Hetchy system of city and 

county of San Francisco.

Cooperation.--Water-stage-recorder graph and 14 discharge measurements furnished by 

city and county of San Francisco.

Discharge, in cubic feet per second, 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Apr.

-

-

-

-

-

140

162

158

122

137

152

147

141

143

134

May

106

16T

161

152

156

162

160

166

168

167

166

165

168

167

166

June

*168

168

170

172

170

168

170

170

170

170

170

167

168

170

170

July

175

175

175

176

175

173

175

176

175

176

178

174

172

ITS

180

Aug.

182

181

181

180

180

180

178

179

172

168

169

169

102

»58

176

Sept.

183

182

182

182

181

181

181

181

182

181

181

181

181

181

175

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total ...................................... .......

Mean ...............................................

Runoff in acre-feet. ...............................

Apr.

138

136

148

160

158

158

147

116

144

*143

137

152

148

138

76

-

_

_

-

May

165

147

172

170

169

169

168

162

168

168

168

168

164

158

163

168

5,041

163

10,000

June

169

167

168

166

166

166

168

170

168

168

168

166

166

167

161

-

5,045

168

10,010

July

*179

177

179

179

180

180

177

179

181

176

178

181

182

182

180

180

5,503

178

10,920

Aug.

184

184

184

184

184

181

181

184

182

181

182

182

181

184

169

184

5,366

173

10,640

Sept.

168

170

181

182

181

179

164

161

*159

160

161

162

160

126

100

-

5,129

171

10,170

Discharge measur this day.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota2

Mean

Ac-ft

Oct.

137

152

181

182

TeT

181

181

181

180

180

18 1

181

18L

180

179

179

179

179

178

17a

178

175

177

177

179-

180

179

181

157

94

§1

5,275

170

10,460

Calendar yea

Nov.

106

T6T

179

179

177

176

176

176

176

174

174

174

170

172

175

176

175

175

176

178

175

172

175

176

176

176

 176

178

179

179

5,188

173

10,290

Dec.

178

176

175

174

175

175

175

174

174

174

174

174

174

174

174

174

174

74

74

74

74

74

74

173

173

173

173

174

174

174

172.

5,398

174

10,710

- 1956: Max -

Jan,

167 172-

172

172

172

172

172

172

172

172

172

174

172

172

174

174

174

174

175 175-

174

174

174

174

174

174

174

174

174

174

174

5,365

173

10,640

Feb.

175 ITS175

175

175

175

175

175

175

176

176

175

175

175

175

175

176

176

176

177

179

179

178

176

177

179

179

179

-

4,933

176

9,780

Mar.

181

181

181

181

176

174

*179

179

179

177

176

178

179

179

180

180

179

178

178

176

172

174

174

172

172

170

168

168

168

166

W

5,441

176

10,790

Apr.

166 166"

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

166

168

166

166

166

166

167

4,983

166

9,880

May

162

158

158

158

158

158

158

158

161

162

162

162

162

162

162

162

163

164

160

162

163

162

164

162

162

163

163

164

*162

162

163

5,002

161

9,920

June

164

164

162

164

162

162

161

161

162

162

162

162

162

162

162

164

150

*111

*TTT

140

163

162

162

162

160

158

158

158

158

158

4,715

157

9,350

July

156

160

163

166

168

172

172

171

174

174

174

172

172

172

169

164

165

171

170

169

170

1 2

2

3

_ 6

4

2

174

175

174

176

5,282

170

10,480

Aug.

177

175

176

178

176

178

178

179

179

176

180

183

184

184

183

182

182

185

184

183

179

174

176

176

182

178

179

181

175

182

179

5,563

179

11,030

Sept.

181

185

182

182

*178

176

182

181

181

181

182

182

183

182

184

184

185

185

184

183

183

179

173

18?

182

181

179

179

182

179

5,442

181

10,790

Min - Mean - Ac-ft -

Water year 1956-57: Max 185 Min 67 Mean 171 Ac-ft 124,100

Discharge measurement made on this day.
322 SAN JOAQUIN RIVER BASIN

Cherry Creek near Early Intake, Calif.

Location.--Lat 37°54', long 119°57', in SW^ sec. 36, T. IN., R. 18 E., on right bank 

1.4 miles northeast of Early Intake, 1.7 miles upstream from mouth, and 9.5 miles 

southwest of Hetch Hetchy.

Drainage area.--226 sq ml.

Records available.--May 1956 to September 1957.

Gage.--Water-stage recorder. Datum of gage Is 2,272.00 ft above mean sea level (levels 

"by city and county of San Francisco).

Extremes.--1956: Maximum discharge during period May to September, 4,090 cfs July 30 

(gage height, 9.92 ft); minimum daily, 1.7 cfs Sept. 30.

1956-57: Maximum discharge during water year, 2,050 cfs July 17 (gage height, 

8.22 ft); minimum daily, 1.7 cfs Oct. 1.

Remarks.--Records good. Plow regulated by Lake Lloyd (see p. 317), and Lake Eleanor (see 

p. 319}. Cherry Creek Canal diverts about 1.0 mile upstream from station (see preceding page).

Cooperation.--Water-stage-recorder graph and 23 discharge measurements furnished by city 

anfl county of San Francisco.

Rating table, May 30, 1956, to Sept. 30, 1957 (gage height, 

In feet, and discharge, In cubic feet per second)

2.0

2.1

2.2

1.6 

2.3 

3.2 

4.3 

5.6 

7.3

2.7 

3.0 

3.5 

4.0 

4.5 

5.0

25

54

104

179

280

5.5 

6.0 

7.0 

8.0 

9.0 

10.0

425

610

1,120

1,860

2,840

4,200

Discharge, In cubic feet per second, 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

May

-

_

-

-

-

-

_

-

-

-

-

-

-

_

-

June

810

750

732

781

762

598

523

130

758

582

624

1,040

*1,880

2,260

2,080

July

1,840

1,220

709

574

562

550

542 546"

682

786

776

686

758

958

930

Aug.

3,460

5,490

3,490

3,440

3,400

3,140

2,360

1,520

526

109

107

107

70

15

4.2

Sept.

.8

!l

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total ..............................................

Mean. ..............................................

Runoff In acre-feet. ...............................

May

_

_

-

-

-

-

_

-

_

-

-

_

-

(*)

*1,010

*870

__

_

-

June

1,560

1,280

1,540

1,800

1,840

1,880

1,750

1,760

1,770

1,870

1,910

1,920

1,980

1,980

1,940

-

41,460

1,382

82,230

July

*795

610

554

550

570

801

1,010

1,010

1,000

*1,430

*2,290

*3,170

3,560

3,500

*3,650

3,500

40,119

1,294

79,570

Aug.

7.5

8.9

8.7

8.4

8.2

11

2.8

278

2.9

3.3

5.2

4.2

3.8

8.2

6.3

8.6

25,339.0

817

50,260

Sept.

2.9

13

27

25

26

26

2.8

2.7

2.5

*2.3

2.3

2.4

2.3

2.2

1.7

-

208.0

6.93

413

rge measurement made on this day. 

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

37 1.7

5§- 89

49

40 

37

30

25

20

19

14

13

9.1

8.0

7.1

6.4

6.1

5.8

5.1

4.6

8.5

33

26 

20

2O

28

41

30

57

80

828.4

26.7

1,640

Nov.

45

I?

41

42

44

44 

44

44

43

30

28

28

26

16

9.4

9.4

9.4

9.4

9.1

574

22

16

14

11 

11

12

12

14

14

15

691.1

23.0

1,370

Dec.

16

12

11

TF

31_

20 

15

15

15

15

16

16

15

15

15

15

15

14

*14

14

14

14

14

14 

14

13

13

12

12

12

14

460

14.8

912

Jan.

is 4.0

10

11

12

11 

10

12

11

10

10

17

79

29

18

16

14

13

12

22

16

14

14

13 

13

17

12

12

12

12

12

478.0

15.4

948

Feb.

12

15

12

12

12

12

15

25

26

21

43

33

34

31

48

53

51

50

52

41

28

28

117

157 

167

83

64

53

-

1,293

46.2

2,560

Mar.

56

51

46

56

143

314 

436

*418

446

439

425

453

43?

243

112

231

221

219

*213

210

133

48" 40

45 

43

43

42

4O

52

77

60

5,787

187

11,480

Apr.

55

49

87

152

194

258 

255

290

387

384

418

709

905

910

905

800

704

586

*397

400

394

590

1,010

1.150 

1,120

1,100

1,100

1,110

810

610

17,819

594

35,340

May

614

497

369

369

372

372 

369

372

369

375

369

363

363

366

360

357

354

394

516

509

570

562

523

470 

348

366

488

574

554

509

520

13,514

436

26 , 800

June

610

714

718 718"

691

*646 

542

481

432

372

411

414

397

390

381

369

375

408

400

378

354

351

351

348 

351

348

*345

345

342

42T

13,406

447

26,590

July

704

763

718

655

624

594

562

512

478

450

422

404

378

357

703

1,580

1,440

1,850

1,850

1,840

1,830

1,820

1,810

1,810 

1,830

1,860

1,850

1,840

1,860

1.870

*1,860

37,124

1,198

73,630

Aug.

1,840

1,840

1,840

1,820

1,840

1,850 

1,840

1,850

1,840

1,840

1,830

1,820

1,800

1,800

1,780

1,780

1,770

1,760

1,750

1,740

1,530

1,400

1,100

739 

357

212

65

33

33

12

T?

41,723

1,346

82,760

Sept.

8.9

5.6

5.5

5.6

5.0

4.5 

18

20

22

20

18

*18

18

18

18

17

18

17

18

18

18

21

3.1

572

7.5

13

15

15

9.4

13

416.3

13.9

826

Calendar year 1956: Max - Mln - Mean - Ac-ft

Water year 1956-57: Max 1,870 Mln 1.7 Mean 366 Ac-ft £64,900

Discharge measurement made on this day.
SAM JOAQUIN RIVER BASIN 323

South Fork Tuolumne River near Oakland Recreation Camp, Calif.

Location. Lat 37°49'16", long 120°00'48", in SE£ sec. 29, T. IS., R. 18 E., on right 

bank opposite Cliff House, 76 ft downstream from highway bridge on Big Oak Plat Road, 

0.5 mile southwest of Oakland Recreation Camp, and 0.6 mile upstream from Middle 

Tuolumne River.

Drainage area. --87. 6 sq mi.

Records available. --March 1923 to September 1957.

Gage. --Water-stage recorder. Altitude of gage is 2,800 ft (from topographic map). Prior 

Eo Nov. 22, 1931, at site 50 ft upstream at same datum.

Average discharge. --34 years, 92.8 cfs (67,180 acre-ft per year).

Extremes . --Maximum discharge during year, 1,990 cfs May 18 (gage height, 6.14 ft); minimum, 7.7 cfs Sept. 10.

1923-57: Maximum discharge, 11,900 cfs Dec. 23, 1955 (gage height, 10.9 ft, from 

floodmarks), from rating curve extended above 1,300 cfs on basis of slope-area 

determination of peak flow; minimum, 0.3 cfs Aug. 23, 1934.

Remarks . --Records good. No storage or diversion.

Cooperation. Water-stage-recorder graph and 11 discharge measurements furnished by city 

and county of San Francisco.

Revisions (water years) . WSP 1445: 1923, 1925(M), 1926-28, 1929-30(M), 1932(M), 

1935-36 (M), 1937, 1938(M), 1943(M), 1945(M).

Rating table, water year 1956-57, (gage height, in feet, and discharge, 

in cubic feet per second)

0.9

1.0 

1.2 

1.4 

1.6 

2.0

6.6

8.0

11

16

22

44

3.5 

4.0 

5.0

94

165

280

455

980

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

12

12

12

13

14

14

14

15

14

14

15

16

15

14

14

14

13

13

13

13

13

13

16

18

17

18

23

21

18

24

40

495

16.0

982

Nov.

21

20

19

19

19

18

19

19

20

20

20

19

18

18

18

18

17

17

17

1£

17

17

17

16

16

16

17

16

16

*16

536

17.9

1,060

Dec.

16

15

IS

17

38_

25

17

17

19

20

20

22

20

20

19

19

18

18

16

17

17

15

18

17

16

16

16

17

17

17

*17

571

18.4

1,130

Jan.

16

16

16

16

17

18

16

18

1418-

18

30

215

70

40

30

26

23

23

28

24

23

24

22

21

22

17

22

20

21

21

905

29.2

1,800

Feb.

21

22

20

20

20

21

23

52

49

37

65

69

75

71

*63

66

75

68

59

54

56

56

288

501

3TT

180

134

114

2,696

95. 3

5,350

Calendar year 1956: Max 1,190 Mln 12

Mar,

114

118

101

100

182

198

»139

125

162

132

114

148

129

110

112

127

109

99

92

88

86

79

75

73

TS

74

79

86

104

116

109

3,455

111

6,850

Apr.

99

90

So

102

116

127

120

118

122

126

129

116

119

145

130

116

116

*130

111

111

104

101

101

104

110

115

125

142

176

208

3,619

121

7,180

May

194

188

160

200

223

241

245

215

160

139

136

122

120

129

119

125

145

494

825

*358-

372

344

292

274

265

289

298

180

243

243

280

7,728

249

15,330

June

295 286"

271

250

231

200

188

169

155

151

130

129

119

110

100

94

89

86

81

*74

70

66

61

56

*52

48

46

43

42

40

3,732

124

7,400

July

36" 38

34

33

31

30

31

30

28

26

26

24

24

23

23

22

21

21

20

20

20

19

19

19

*18

*18

17

17

16

15 rs

734

23.7

1,460

Aug.

14

IT

14

14

14

14

14

14

13

13

12

12

12

12

11

11

11

10

10

10

10

10

10

9.6

9.4

9.3

9.3

9.1

97T

9.6

9.6

354.2

11.4

703

Sept.

9.6

9.1

8.8

8.6

8.5

8.3

8.2

8.0

7.9

77?

*7.9

8.0

8.2

8.2

8.2

8.5

11

11TT

10

10

9.3

8.8

8.3

8.2

8.2

8,0

8.2

8.5

8.8

269.2

8.97

534

Mean 133 Ac-ft 96,350

Water year- 1956-57: Max 825 Mln 7.9 Mean 68.8 Ac-ft 49,780

Peak discharge (base, 370 cfs). Feb. 24 (6 p.m.) 968 cfs (4.98 ft); May 18 (12 p.m.) 1,990 cfs

(6.14 ft); June 1 (9:30 p.m.) 427 cfs (3.93 ft).

Discharge measurement made on this day.

510529 O - 59 - 22
324 SAN JOAQUIN RIVER BASIN

Middle Tuolumne River at Oakland Recreation Camp, Calif.

Location.--Lat 37°49'40", long 120°00'40", in NW^ sec. 28, T. 1 S., R. 18 E., on left 

bank: 1,000 ft downstream from Oakland Recreation Camp, 0.5 mile upstream from South 

Pork Tuolumne River, and 4 miles east of Buck Meadows Post Office.

Drainage area.--71.0 sq mi.

Records available.--November 1916 to September 1957. November 1916 to September 1932, 

published as Middle Fork of Tuolumne River near Buck Meadows and October 1932 to 

September 1940, published as "near Buck Meadows."

Gage.--Water-stage recorder. Altitude of gage is 2,800 ft (from topographic map). 

Average discharge. 40 years (1917-57), 73.9 cfs (53,500 acre-ft per year).

Extremes. Maximum discharge during year, 951 cfs May 19 (gage height, 6.27 ft); minimum, 

2.0" cfs Sept. 14.

1916-57: Maximum discharge, 4,920 cfs Dec. 23, 1955 (gage height, 11.75 ft, from 

flood profile, 11.05 ft, from inside floodmarks), from rating curve extended above 

1,400 cfs on basis of slope-area determination of peak flow; no flow Sept. 4-14, 1924, 

Aug. 12 to Oct. 5, 1931, Sept. 11-17, 1934.

Remarks.--Records good prior to June 30, poor thereafter. Small diversion above station 

for irrigation.

Cooperation.--Water-stage-recorder graph and 12 discharge measurements furnished by city 

and county of San Francisco.

Revisions (water years).--WSP 1395: 1919(M), 1938(M), 1951(P).

Rating table, waber year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used July 1 to Sept. 30)

1.0 

1.2 

1.5 

2.0

1.6 

3.1

5.1

8.4

16

38

2.5 

3.0 

3.5 

4.0 

5.0

133

215

324

576

Discharge, In cubic feet per second, water year Ocbober 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

4.3

4.0 47o"

4.1

5.1

5.6

10

5.7

5.2

5.2

5.8

6.6

7.1

6.8

6.2

5.6

5.2

5.0

5.0

4.9

4.8

4.7

6.4

7.3

6.6

7.5

10

12

9.7

14

16.

210.4

6.79

417

Nov.

~9.9 11

9.7

9.7

9.4

9.7

9.9

9.9

10

11

11

11

10

9.7

8.6

8.4

8.6

8.2

.7

.4

.8

.7

.5

.3

.1

.0

.1

.1

. 8

* .0

261.2

8.71

518

Dec.

6.8

6.3

673

7.5

19

11

6.8

6.6

8.2

9.0

9.4

11

10

9.7

8.8

9.2

8.2

8.2

7.5

*7.5

7.9

6.6

8.0

7.9

7.1

7.5

7.3

7.3

7.3

7.9

7.5

259.3

8.36

514

Calendar year 1956: Max 756

Jan.

7.0

7.0

7.3

7.0

7.9

7.7

6.8

8.2

TTB" 6.3

8.0

12

~32~ 112

21

17

14

12

12

15

13

12

12

12

11

12

8.8

11

10

10

10

449.5

14.5

892

Feb.

10

11

10

10 9.9

10

12

22

23

18

29

31

32

32

*31

32

43

45

37

34

34

34

*151

208 152"

93

73

65

-

1,290.9

46.1

2,560

Mln 4.0

Mar.

65

64

57

60

128

125

94

*80

98

77

68

85

72

62

72

77

62

58

52

50

49

44

44

45

45

45

48

53

69

80

78

2,106

67.9

4,180

Apr.

70

64

S4

71

81

89

89

89

94

98

104

100

100

120

114

104

 101

110

92

89

82

83

83

87

94

100

110

125

148

162

2,917

97.2

5,790

May

170

175

158

189

223

246

265

252

194

168

158

144

147

158

140

159

189

354

574

*289

276

285

250

248

256

300

334

319

287

307

344

7,558

244

14,990

June

384

399

39?

372

339

296

278

252

225

204

183

ISO

167

152

133

121

115

112

106

*94

86

78

71

65

*60

54

51

47

44

42_

5,102

170

10,120

July

4138"

37

37

37

37

37

34

29

25

21

19

18

17

15

14

12

12

11

12

11

11

11

11

*10

*9.4 9~4

11

10

10

10

616.8

19.9

1,220

Aug.

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

8.6

8.8

8.2

8.0

7.3

6.4

6.3

6.0

5.0

5.1

4.9

4.8

4.6

264.0

8.52

524

Sept.

4.7

TTS

4.0

3.8

3.6

3.3

3.0

2.8

2.5

2.3

2.2

*2.2

2.2

111

2.3

2.5

2.7

3.4

3.7

3.5

3.1

2.7

2.7

2.5

2.3

2.2

2.2

2.2

2.2

2.3

85.5

2.85

170

Mean 135 Ac-ft 97,880

Water year 1956-57: Max 574 Min 2.1 Mean 57.9 Ac-ft 41^900

Peak discharge (base, 370 cfs). May 19 (1 a.m.) 951 cfs (6.27 fb); June 1 (11 p.m.) 576 cfs 

(5.00 ft)._________________________

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 325

Woods Creek near Jacksonville, Calif.

Location La t 37°51'30", long 120°23'45", in SE^ sec. 11, T. 1 S., R. 14 E., on right 

bank 200 ft downstream from Blue Gulch, 1.5 miles upstream from mouth, and 1.5 miles 

northwest of Jacksonville.

Drainage area. 98.4 sq mi.

Records available. October 1925 to September 1957.

Gage. Water-stage recorder. Datum of gage is 653.65 ft above mean sea level, unadjusted. 

Prior to Oct. 1, 1947, at datum 2.00 ft higher.

Average discharge. --32 years, 60.3 cfs (43,660 acre-ft per year); median of yearly mean 

discharges , 52 cfs (37,600 acre-ft per year).

Extremes. Maximum discharge during year, 2,210 cfs May 19 (gage height, 8.22 ft); no 

flow for several months .

1925-57: Maximum discharge, 14,400 cfs Dec. 23, 1955 (gage height, 14.66 ft), from 

rating curve, extended above 2,400 cfs on basis of slope-area determination of peak 

flow; no flow for parts of most years.

Remarks . Records good except those for period of no gage-height record, which are fair. 

Tuolumne Canal (see p. 342) diverts water from the Stanislaus River basin into Woods 

Creek basin for power, irrigation, and domestic supply in the vicinity of Sonora 

upstream from the station. Some of the diverted water, up to 2 cfs, returns to the 

Stanislaus River basin, and up to 4 cfs, enters the Tuolumne River basin upstream 

from Woods Creek.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.3 0

1.4 .1

1.5 .3

1.6 1.0

1.7 2.0

1.8 

2.0 

2.3 

2.7 

3.0

3.5

8.0

21

47

74

3.5

4.0 

5.0 

6.0 

7.0

134

218

434

750

1,290

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

~0.3

*.3

.3

.3

.5

.7

1.2

1.4

1.3

1.3

1.3

1.2

1.2

1.3

1.3

1.2

1.2

1.1

1.0

1.1

1.3

1.5

5.1

5.5

5.3

8.8

8.0

7.7 

10

28

101.0

3.26

300

Nov.

13

IS

9.2

9.2

9.2

9.2

8.8

8.4

7.5

7.5

7.1

T7T

7.5

7.5

*8.0

12

10

10

9.2

10

12

11

10

8.8

8.4

8.0

9.2

8.8

8.8

9.2

274.6

9.15

545

Dec.

9.6

9.2

10~ 8.8

i§.

44

Zl

ZZ

ZO

20

18

14

11

14

13

12

11

10

*9.6

9.6

9.6

9.2

8.8

8.8

9.2

9.6

9.6

10

10

10

9.6

443.2

14.3

879

Jan.

8.8

3T7

9.6

9.2

9.2

9.6

8.8

11

15

11

11

12

88

59

32

20

16

15

14

85

92

44

S4

32

30

36

32

29

26

25

23

856.4

27.6

1,700

Feb.

23

24

25

24

22

17

18

34

38

28

30

33

28

*25

23

22

20

20

19

18

24

32

362

35B" 417

110

94

65

-

1,960

70.0

3,890

Mar.

106

105

72

107

859

328

138

96

193

136

85

131

110

*81

81

159

90

76

69

62

60

54

51

49

47

48

4646"

48

57

47

3,637

117

7,210

Apr.

45

42

43

42

40

39

36

37

36

34

34

33

31

41

41

21

2?

55

47

44

48

46

*35

30

27

27

27

32

32

30

1,097

36.6

2,180

May

20

16

20

46

34

26

26

25

26

27

27

27

26

29

32

29

26

222

874

110

300

125

79

64

54

49

43

39

36

36

34

2,527

81.5

5,010

June

31

25

26

25

23

20

20

19

19

21

20

18

16

16

18

16

15

10

7.2

8.0

8.4

8.8

7.0

3.5

4.5

5.1

a4.9

a4.3

a3.7

d3 .2

429.6

14.3

852

July

d2.8

dZT

d2.0

dl.8

dl.5

dl.2

dl.O

*a.9

.7

.5

.4

.3

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

TT

.1

.1

.1

.1

.1

.1

.1

18.5

0.60

37

Aug.

0.1

00"

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

»0

0

0

0

0

0

0

0

0

0

0

0

.1

0.003

0.2

Sept.

0

0

0

Calendar year 1956: Max 1,820 Mln 0 Mean 70.0 Ac-ft 50,830

Water year 1956-57: Max 874 Mln 0 Mean 31.1 Ac-ft 22,500

Peak discharge 

(8.22 ft).

(base, 900 cfs).--Mar. 5 (l p.m.) 1,240 cfs (6.92 ft); May 19 (l a.m.) 2,210 cfs

* Discharge measurement or observation of no flow made on this day.

a No gage-height record; discharge estimated on basla of 1 discharge measurement and recorded 

range In stage.
326 SAN JOAQUIN RIVER BASIN

Don Pedro Reservoir near La Grange, Calif.

Location. Lat 37°42'48", long 120°24'14", In SW£ sec. 35, T. 2 S., R. 14 E., 300 ft from 

left bank on upstream face of Don Pedro Dam on Tuolumne River, 1 mile downstream from 

Rogers Creek, and 5.5 miles upstream from La Grange.

Drainage area. 1,539 sq ml.

Records available.--October 1924 to September 1930 (dally gage heights; also summary of 

yearly contents In WSP 881), October 1930 to September 1957.

Gage. Water-stage recorder. Datum of gage Is at mean sea level (levels by Turlock 

"irrigation District). Prior to Feb. 1, 1941, staff gage at same site and datum.

Extremes. Maximum contents during year, 289,900 acre-ft June 25 (elevation, 605.4 ft); 

minimum, 73,100 acre-ft Jan. 5, 7 (elevation, 516.5 ft).

1924-57: Maximum contents, 292,100 acre-ft June 13, 1937 (elevation, 606.1 ft); 

minimum, 29,200 acre-ft Sept. 1-3, 5, 1934; minimum elevation, 475.0 ft Sept. 1, 2, 

1934.

Remarks. Reservoir is formed by concrete gravity-type dam, completed about Jan. 1, 1923;

 sTorage began Nov. 14, 1922. Total capacity, 290,400 acre-ft at elevation 605.55 ft 

(top of drum type spillway gates), of which 30,000 acre-ft, below elevation 476 ft 

(mutually agreed-upon minimum), is not available for release. Water passes through 

powerplant at dam and down Tuolumne River to La Grange Dam, 4 miles downstream, where 

it is diverted into Turlock and Modesto Canals for irrigation. This reservoir is 

operated Jointly by Turlock and Modesto Irrigation Districts.

Cooperation. Water-stage-recorder graph furnished by Turlock and Modesto Irrigation 

Districts.

Capacity table, water year 1956-57 (elevation, In feet, and 

total contents, In acre-feet)

516

520

535

550

72,400

78,100

103,400

135,800

565

580

595

605

172,500

213,400

257,500

290,200

Total contents, In thousands of acre-feet, at 12 p.m., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

145.8

144.3

143.4

142.6

141.9

141.7

141.9

141.5

141.2

141.0

141.0

140.7 Tin?

141.9

141.9

142.2

142.4

142.4

142.9

143.6

144.8

145.3

145.3

145.5

146.0

146.2

147.0

148.6

148.6

148.6

149.1

555.6

+2,100

Nov.

148.2

147.6

146.7

147.4

146.5

145.5

144.6

143.8

142.6

141.5

141.2

139.6

137.9

135.8

133.7

131.6

130.0

129.3

127.3

124.8

122.5

121.7

119.7

117.9

116.9

114.7

113.0

111.4

109.9

108.1

537.4

-41,000

Dee.

106.9

106.7

105.1

103.2

102.2

101.1

99.6

98.7

98.7

97.7

97.4

95.9

95.2

94.7

94.8

93.6

91.9

90.2

88.2

86.2

84.9

83.7

83.1

81.7

82.3

81.0

80.1

78.3

77.3

77.0

75.7

518.3

-32,400

Jan.

76.2

75.1

74.3

73.5

75.1

73.5

73.1

73.2

73.5

74.0

74.3

75.2

78.7

81.0

82.3

83.4

84.2

84.6

85.4

87.5

88.5

89.3

89.8

90.4

90.7

91.7

93.1

93.3

93.6

94.5

95.0

530.5

+19,300

Feb.

95.7

96.8

98.3

98.7

99.6

100.0

100.3

101.3

103.0

104.7

105.9

107.7

109.3

111.4

113.0

115.4

117.7

119.2

120.8

121.9

123.0

125.2

131.4

140.7

151.6

156.5

160.4

163.1

-

561.3

+68,100

Mar.

166.4

170.0

173.3

175.9

184.3

191.6

197.1

201.2

206.0

208.0

214.2

217.9

221.7

224.8

226.6

230.1

233.0

233.6

233.9

231.2

228.6

225.4

222.0

218.8

216.8

215.1

213.4

211.6

210.2

209.4

208.3

578.2

+45,200

Apr.

206.8

205.2

203.2

201.8

200.1

199.0

197.9

196.8

195.4

194.6

193.5

192.7

192.7

193.0

193.5

193.2

193.0

193.0

192.1

191.1

190.0

188.9

188.6

189.4

190.5

191.6

192.7

194.3

195.7

_____!_

574.0

-11,800

May

197.6

198.5

198.5

198.7

199.3

199.8

200.4

201.2

201.2

201.0

200.7

200.4

199.8

199.3

199.0

198.5

198.5

199.5

212.2

215.9

220.2

224.0

226.3

228.3

230.1

231.5

233.3

235.1

235.9

236.5

237.4

588.3

+40, 900

June

238.3

239.8

241.3

241.6

240.7

239.2

240.7

243.3

243.0

245.1

247.2

248.4

250.5

253.2

257.2

260.5

263.3

266.1

269.2

272.9

277.0

280.7

284.2

287.6

289.6

288.9

287.6

287.0

286.7

286 .7

604.4

+49,300

July

287.0

287.0

286.4

283.6

280.7

278.2

275.7

272.9

270.1

267.0

263.6

259.9

256.3

252.3

249.6

249.0

248.7

249.3

249.9

250.8

251.4

252.0

252.6

252.9

253.5

254.1

255.1

255.7

256.3

256.9

257.5

595.0

-29,200

Aug.

258.1

259.0

259.3

260.2

260.8

261.4

261.8

262.4

263.3

263.9

264.5

265.1

265.5

266.1

266.7

267.0

267.6

267.9

268.8

268.6

268.9

268.6

268.2

267.0

265.1

262.7

259.9

256.9

253.8

250.8

248.1

591.9

-9,400

Sept.

245.1

242.2

238.9

235.9

233.0

229.5

226.6

223.4

220.2

217.3

214.5

211.6

208.8

206.3

204.0

201.2

199.0

196.5

193.8

191.3

188.9

186.2

183.3

180.3

177.7

175.6

173.6

171.5

170.5

169.2

563.7

-78,900

Calendar year 1956.................... t -111,000

Water year 1956-57.................... * +20,100

t Elevation, In feet, at end of month. 

t Change in contents, in acre-feet.
SAN JOAQUIN RIVER BASIN 327

Tuolumne River above La Grange Dam, near La Grange, Calif.

Location.--Lat 37°42'35", long 120°24'45", in NE-J- sec. 3, T. 3 S., R. 14 E., on left bank 

0.5 mile downstream from Don Pedro Dam, 3.5 miles upstream from La Grange Dam, and 

5 miles upstream from La Grange.

Drainage area.--1,540 sq mi.

Records available.--March 1915 to September 1957. August 1895 to September 1917 at La 

Grange Dam, 3.5 miles downstream, records equivalent if flow of Sierra and San 

Francisco Power Co.'s canal (abandoned in 1926) and Modesto and Turlock canals is 

added to flow at La Grange Dam.

Aug. 29, 

Apr. 1,

Gage. Water-stage recorder. Altitude of gage is 330 ft (from topographic map). 

1895, to Dec. 5, 1908, staff gage on bridge pier 2 miles below La Grange Dam. 

1908, to Mar. 18, 1915, staff gage on right bank 80 ft above La Grange Dam.

Average discharge. --62 years (1895-1957), 2,557 cfs (1,851,000 acre-ft per year), using 

1895-1916 records of combined flow of river and canals, and including Hetch Hetchy 

diversion to San Francisco.

Extremes . - -Maximum discharge during year, 7,520 cfs June 8 (gage height, 13.80 ft); minlmum daily, 176 cfs Feb. 24.

1895-1957: Maximum discharge, 61,000 cfs Dec. 8, 1950 (gage height, 43.8 ft); minimum daily, 2.1 cfs Dec. 27, 1922.

Remarks. Records excellent. Flow regulated by Don Pedro powerplant, Don Pedro Reservoir 

(see preceding page), Hetch Hetchy Reservoir (see p. 315 ), and Lake Eleanor (see 

p. 319). Tuolumne Canal (see p. 342) diverts water from the Stanislaus River basin 

into the Tuolumne River basin for power, irrigation, and domestic supply in the 

vicinity of Sonora upstream from station. Diversion through Hetch Hetchy aqueduct to 

San Francisco began Oct. 19, 1934; for present year it amounted to an average of 

163 cfs. Records of chemical analyses for the water year 1957 are given in WSP 1523.

Cooperation. Water-stage-recorder graph and 11 discharge measurements furnished by city 

and county of San Francisco.

Revisions (water years). WSP 843: 

summaries only) .

1917(M). WSP 881: 1897-1916, 1923-26 (yearly

Rating table, water year 1956-57 (gage height, In feet, and 

discharge, In cubic feet per second)

5.8 

6.0 

7.0 

8.0

166

240

680

1,320

9.0 

1O.O 

12.0 

14.0

2,080 

2,980 

5,100 

7.8OO

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2 

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1,410

1,420 

1^350

1,270

*1,280

1,120

807

1,110

1,070

1,100

999

1,000

812

446

936

925

851

824

780

635

290

794

921 

901

799

851

633

391

893

1,070 

889

28,604

923

56,740

Nov.

1,390

1,490 

1,160

786

1,230

1,460

1,510

1,410

1,510

1,560

1,180

1,630

1,820

1,920

1,860

1,850

1,680

1,320

1,780

1,950

*2 , 060

1,440

1,830 

1,760

1,430

1,930

1,750

1,690

1,660

1,700

47,746

1,592

94,700

Dec.

1,470

1,080 

1,660

1,900

1,730

1,730

1,740

1,400

977

1,550

1,470

1,290

1,390

1,520

1,380

994

1,8OO

1,840

1,840

1,950

1,920

1,600

1,180 

1,530

926

1,550

*1,620

1,680

1,500

1,170 

1,680

47,067

1,518

93,360

Jan.

870

1,400 

1,280

1,400

1,070

757

1,150

876

816

741

*836

568

214 B35"

620

622

650

842

607

363

788

810

857 

810

932

762

536

744

941

*776 

753

24,931

804

49,450

Feb.

721

543 

337

732

717

783

6"46~ 796

546

327

664

606

540

530

609

371

288

613

624

688

691

413

358 

176

i508

650

610

568

-

.......

15,655

559

31,050

Mar.

636

434 

298

WS

710

633

548

622

674

376

648

699

671

624

827

642

451

1,690

1,6OO

3,000

3,040

3,090

5,110 

3,030

2,520

2,280

2,210

*2,300

2,300

2 300 

2^300

45,031

1,453

89,320

Apr.

2,300

2,320 

2,330

2,380

2,360

2,390

2,380

2,340

2,390

2,450

2.460

2,440

2,450

2,400

2,380

2,430

2,430

2,430

2,400

2,420

2,430

2,350

1,780 

2,270

2,180

2,100

2,030

2,030

*2,000

2,020

69,070

2,302

137,000

May

2,020

2,010 

2,020

2,010

2,020

2,010

2,000

2,010

1,990

1,990

2,010

2,010

2,040

2,040

2,040

2,03O

2,030

2,030

2,010

1,980

2,OOO

2,050

2,000 

2,000

2.OOO

2,000

2,OOO

2,050

2,290

2,270 

2,220

63,180

2,038

125,300

June

2,240

2,250 

2,230

2,770

3,200

4,040

5,310

7,130

7.580

4,730

5,140

5,110

3,110

*5,090

2,530

2,200

2,220

2,220

2,220

2,210

2,190

2,180

2,190 

2,180

2,850

5,130

3-, 120

3,120

5,130

3,150

94,550

5,151

187,500

July

*5,120

5,150 

3,130

3,130

3,120

3,150

5,130

3,110

5,140

3,150

3,130

3,140

5.150

3^150

2,570

2,270

2,270

2,280

2,260

2,260

2,260

2,260

2,270 

2,270

2,260

2,250

2,260

2,250

2,260

2,240 

2,240

82,570

2,664

163,800

Aug.

2,250

*Z,ZV3 

2,24O

2,240

2,230

2,230

2,240

2,230

2,25O

2,230

2,230

2,220

2,250

2,230

2,220

2,200

2,220

2,22O

2,23O

2,230

2,250

2,21O

2,22O 

2,220

2,200

2,210

2,220

2,230

2,250

2 250 

2^250

69,080

2,228

137,000

Sept.

2,250

2,250 

2,270

2,280

2,300

2,310

2,310

2,520

2,500

*2,100

2,110

2,110

2,090

1,900

1,970

1,960

1,940

1,950

1,970

1,940

1,980

1,990

2,OOO 

2.O50

1,980

1,720

1,720

1,680

1,250

1,400

60,380

2,013

119,800

Calendar year 1956: Max 8,700 Mln 290 Mean 3,611 Ac-ft 2,622,000

Water year 1956-57: Max 7,380 Mln 176 Mean 1,775 Ao-ft 1,285,000

* Discharge measurement made on this day.
328 SAN JOAQUIN RIVER BASIN

Modesto Canal near La Grange, Calif.

Location. Lat 37°40'04", long 120°27 I 26", in SW£ sec. 17, T. 3 S., R. 14 E., on right 

bank 0.5 mile northeast of La Grange and 1 mile downstream from intake at La Grange

Records available . April 1903 to September 1957.

Gage.--Water-stage recorder and concrete control at present site since Mar. 8, 1932.

Datum of gage is 272.4 ft above mean sea level (levels by Modesto Irrigation District). 

April 1903 to July 1904, staff gage at approximately present site. July 1904 to 

February 1924, staff gage and February 1924 to March 1932 water-stage recorder, at 

site 0.9 mile upstream.

Average discharge. 54 years, 389 cfs (281,600 acre-ft per year).

Extremes. 1903-57: Maximum daily discharge, 1,820 cfs July 1, 1935; no flow at times.

Remarks. Records excellent. Canal diverts from right bank of Tuolumne River at La Grange 

Dam for irrigation in Modesto and Waterford Irrigation Districts.

Cooperation. Water-stage-recorder graph furnished by Modesto Irrigation District; 11 discharge measurements furnished by city and county of San Francisco.

Revisions (water years). WSP 881: 1904-9 (yearly summaries only).

Discharge, In cubic feet pep second, water year October 1956 to September 1957

Day

1 

Z

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

399 

410

412

413 412-

375

352

320 

261

263

261

260

259

250

265

250

268

264

258

172

18

ITT

134

144

127

126

85

20

125

148

138

7,300

235

14,480

Nov.

158 

157

150

15

166

191

242

367 

374

384

20

343

411

437

43T

427

382

23

*357

7.1

6.2

3.3

3.3

3.3

3.3

3.6

3.6

3.3

3~T 3.0

5,080.3

169

10,080

Dec.

3.0 

2.7

2.7

3.0

5.6

3.3

3.3

2.7 

2.7

3.0

3.0

2.7

3.0

3.3

3.6

3.0

3.3

3.3

3.0

3.6

3.6

3.3

2.7

2.7

2.4

2.3

2.3

*2.2

1.0

0

.1

84.4

2.72

167

Jan.

0

0

0

Feb.

0

0

0

0

0

0

0

0 

0

0

*0

0

0

0

1.4

2.6

3.2

3.0

2.0

1.0

1.2

.1

.9

.9

2.0

181

365" 606

_

1,370.3

48.9

2,720

Map.

292 

21

19

26

24

*19

16

T£

657

489

76

24

*25

22

26

23

17

26

34

36

36

279

556

540

536

528

528

706

829

854

829

8,095

Z61

16,060

Apr.

827

841

839

839

815

803

798

793 

*788

824

880

884

884

889

865

844

841

841

822

803

796

793

800

796

800

760

680

678

673 673"

24,169

806

47,940

May

673 

669

667

669

669

669

671

667 

*671

671

673

673

675

706

722

722

722

719

719

717

722

548

493" 388

554

550

614

784

829

00827

20,882

674

41,420

June

839

841

*841

*846

*937

851

1,240

1,550 

1,320

1,300

1,150

1,070

1,050

1,010

846

803

805

808

829

839

844

844

846

846

966

1,050

1,050

1,050

1,070

1,080

29,221

974

57,960

July

*1,080

1,080

1,080

1,080

1,080

1,080

1,080

1,050 

1,040

1,040

1,040

1,040

1,040

1,040

889

798

824

865

870

870

870

868

870

870

868

868

870

868

868

865

863

29,514

952

58,540

Aug.

863 *'5So

822

805

803

800

800

798 

798

798

820

624

824

824

808

800

800

800

800

803

803

784

776

776

774

774

774

774

791

793

793

24,862

802

49,310

Sept.

791 

793

793

796

798

798

803

805 

805

808

808

808

776

708

708

711

711

711

733

745

750

750

752

752

586

511

509

506

502

304

21,531

718

42,710

Calendar year 1956: Max 1,58O Mln 0 Mean 563 Ac-ft 408,500

Water year 1956-57: Max 1,350 Mln 0 Mean 472 Ac-ft 341,400

* Discharge measurement or observation of no flow made on this day.
SAN JOAQUIN RIVER BASIN 329

Turlock Canal near La Orange, Calif.

Location. Lat 37°40'00", long 120°26'25", in NE^NW^ sec. 21, T. 3 S., R. 14 E., on right 

bank 2,400 ft downstream from intake at La Grange Dam and 1.2 miles east of La Grange.

Records available. October 1898 to September 1957.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 265 ft (from topographic map). July 1, 1899, to Sept. 14, 1915, staff gage at different sites and 

datums near canal intake; Sept. 14, 1915, to Apr. 15, 1924, staff gage at present site 

and datum.

Average discharge. 59 years, 565 cfs (409,000 acre-ft per year).

Extremes. 1898-1957: Maximum daily discharge, 2,280 cfs June 12, 1949; no diversion for 

irrigation during some periods in each year. Prior to 1939, unmeasured small discharge 

during winter called zero.

Remarks.--Records excellent. Canal diverts from left bank of Tuolumne River at La Grange 

Dam for irrigation in Turlock Irrigation District and to supply town of La Grange. 

During fall and winter some unmeasured flow is diverted from canal at tunnel 0.3 mile 

above gage, passed through La Grange powerplant and returned to river.

Cooperation. Water-stage-recorder graph furnished by Turlock Irrigation District; 15 discharge measurements furnished by city and county of San Francisco.

Revisions (water years). WSP 881: 1899-1908 (yearly summaries only). WSP 1445: 

1917-20, 1922.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

I

2 

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27 

28 

29

30

31

Total

Mean

Ac-ft

Oct.

669

594 

573

450

404

285

9.7

331 

343

354

274

259

86

8.4

248

106

66

41

20

5.4

5.4

115

215

185

13

205

6.2 

6.8 

229

379 

197

6,682.9

216

13,260

Nov.

651

651 

360

107

560

646

*648

400 

508

496

532

702

767

304

792

817

BIT

669

292

14

14

14

14

14 

14

14

14 

13 

11

TT

11,163

372

22,140

Dec.

10

10 

9.7

9.7

9.7

9.0

9.0

8.4 

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.8

7.3

7.3

244" 6.8

239

382

408 

431

ITS

304

404

3,015.5

97.3

5,980

Jan.

30

355 

360

375 3TB"

72

314

174 

9.0

77

*5.0

4.3

3.6

4.6

3.9

3.9

3.9

86

3.9

5_.5

151

7.2

247

117 

222

7.0

5.8 

373 

293

6.2

150

3,783.6

122

7,500

Feb.

5.4

4.3 

5.0

88

80

136

146

5.8 

5.8

6.2

»85

5.4

4.6

5.0

5.4

5.0

5.8

46

466

687

690

ITS

357

175 

346

214

4.3 

2.9

3,999.9

143

7,930

Mar.

2.9

3.5 

3.3

3.6

3.6

*3.3

3.1

3.3 

3.6

2.4

2.9

3.3

*3.3

3.3

3.3

3.1

2.9

3.3

3.3

250

502

499

606

704 

846

1,070

1.100 

942 

849

824

827

9,080.1

293

18,010

Apr.

1,160

1,480 

1,490

1,540

1,550

1,590

1,580

1,550 

*1,600

1.650

1,580

1,560

1,570

1,510

1,520

1,590

1,590

1,590

1,580

1,620

1,630

1,560

983

894 

746

768

1,350 

1,350 

1,330

1,350

42,841

1,428

84,970

May

1,350

1,340 

1,350

1,340

1,350

1,340

1,330

1,340 

*1,320

1,320

1,340

1,340

1,370

1,330

*1,320

1,310

1,310

1,310

1,290

1,260

904

636

559

656 

656

835

782 

712 

1,460

1,446

1,390

36,690

1,184

72,770

June

1,400

1,410 

*1,390

1,530

1,680

1,740

1,850

1,910 

1,950

1,830

1,990

2,040

2,060

*2.0SO

1,680

1,400

1,410

1,410

1,390

1,370

1,350

1,340

1,340

1,550 

1^860

2,080

2,070 

2,070 

2,060

2,050

51,070

1,702

101,500

July

*2,040

2,050 

2,050

2,050

2,040

2,050

2,050

2,060 

2,100

2,090

2,090

2,100

2,110

2,116

1,680

1,470

1,450

1,410

1,590

1,390

1,390

1,390

1,400

1,400 

1,390

1,560

1,590 

1,580 

1,590

1,580

1,580

55,050

1,711

105,200

Aug.

*1,590

1,560 

1,420

1,450

1,450

1,450

1,440

1,450 

1,430

1,450

1,410

1,400

1,410

1,410

1,410

1,400

1,420

1,420

1,450

1,450

1,450

1,450

1,440

1.440 

1,450

1.440

1,450 

1.460 

i,460

1.460

1,460

44,250

1,427

87,770

Sept.

1,460

1,460 

1,480

1,480

1,500

1,510

1,510

1,520 

1,490

1,290

1,500

1,500

1,510

1,190

1,260

1,250

1,230

1,240

1,240

1,200

1,230

1,240

1,250

1,300 

1,390

1,210

1,210 

1,170

727

95T

38,848

1,295

77,050

Calendar year 1956 : Max 2,270 Mln 0.7 Mean 852 Ae-ft 618,600

Water year 1956-57 : Max 2,110 Mln 2.4 Mean 834 Ac-ft 603,900

* Discharge measurement made on this day.
330 SAM JOAQUIN RPVER BASIN

Tuolumne River at Modesto, Calif.

Location. Lat 37°37'38", long 120°59'20", in SW£ sec. 33, T. 3 S. , R. 9 E. , on left bank 

at U. S. Highway 99 bridge in Modesto, 0.2 mile downstream from Dry Creek.

Records available.--1878-84. 1891-97 (gage heights only), October 1943 to September 1957. 

March 1940 to September 1957 in reports of California Department of Water Resources.

Gage.--Water-stage recorder. Datum of gage is at mean sea level, unadjusted (levels by 

Modesto Irrigation District). Prior to Nov. 15, 1953, water-stage recorder at site 

1,000 ft downstream at same datum.

Average discharge.--14 years (1943-57), 1,304 cfs (944,100 acre-ft per year).

Extremes. Maximum discharge during year, 4,610 cfs June 10 (gage height, 46.31 ft); minimum; 224 cfs June 25.

1943-57: Maximum discharge, 57,000 cfs Dec. 9, 1950 (gage height, 69.19 ft); minimum, 184 cfs July 16, 1955.

Remarks. Records good. Flow regulated by reservoirs and powerplants above station. In 

addition to diversions into Modesto and Turlock canals (see p. 328, 329), there are 

diversions for irrigation of about 1,300 acres between stations above La Grange Dam 

and at Modesto. See Remarks for Tuolumne River above La Grange Dam, near La Grange.

Rating table, water year. 1956-57 (gage height, in fe 

and discharge, in cubic feet per second)

(Shifting-control method used Mar. 6-19}

41.3

41.6

42.0

215

480

43.0

44.0

46.0

2,140

2,990

4,390

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

-3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

710

690

660

670

690

750

792

781

740

*760

781

760

750

781

690

836

781

770

750

750

720

556

740

803

792

836

781

720

622

770

814

23,046

743

45,710

Nov.

770

869

847

836

825

858

803

847

858

858

858

825

847

892

869

858

858

869

847

*1 , 360

2,040

2.110

1,610

1,960

1,880

1,640

2,020

1,840

1,830

1,800

36,184

1,206

71,770

Dec.

1,820

1,650

1,320

1,830

1,980

1,870

1,830

1,840

1,590

*1,240

1,690

1,650

1,520

1,590

1,650

1,560

1,210

1,900

1,970

1,980

2,090

2,020

1,760

1,380

1,460

964

1,320

1,390

1,450

1,280

1,010

49,814

1,607

98,800

Jan.

1,520

892

1,230

1,130

1,260

988

892

1,060

904

988

904

1,010

858

604

710

825

825

825

904

847

651

770

916

847

847

904

825

670

770

814

892

27,882

899

55,300

Feb.

825

858

710

613

770

803

814

814

814

710

*575

760

792

770

710

740

622

508

680

566

336

283

283

283

390

363

390

372

-

17,154

613

34,020

Mar.

327

518

847

670

880

1,730

1,210

*869

760

417

274

490

792

825

803

940

836

720

1,940

2,240

2,710

2,710

2,330

2,010

1,910

1,320

940

892

892

928

904

35,634

1,149

70,680

Calendar year 1956: Max 1O,500 Min 324 Me

Apr.

892

604

390

345

318

300

292

300

327

*318

327

363

327

390

480

381

327

363

300

274

266

266

258

490

770

803

792

426

327

318

12,334 411'

24,460

May

318

345

336

327

318

318

274

283

292

*309

327

327

292

327

336

336

363

381

499

584

453

660

1,090

1,210

1,130

1,090

964

916

869

462

318

16,054

518

31,840

June

318

327

300

292

453

792

1,690

2,650

4.260

4,100

1,400

*575

426

363

363

372

345

292

274

240

258

274

283

266

249

249

240

240

274

258

22,423

747

44,480

July

274

258

274

274

266

249

283

274

283

283

266

258

274

283

292

266

258

258

266

292

274

309

274

283

274

283

300

292

274

266 

266

8,526

275

16,910

Aug.

274

327

283

283

292

274

258

292

300

300

283

274

266

*258

266

258

266

309

274

274

249

258

266

258

300

300

266

309

283

283 

309

8,692

280

17,240

Sept.

309

318

274

258

274

292

283

274

274

*283

266

258

266

266

283

300

283

300

309

327

 327

318

318

318

300

300

300

300

318 

345

8,841

295

17,540

m 2,558 Ac-ft 1,857,000

Water year 1956-57: Max 4,260 Mln 240 Mean 730 Ac-ft 528,800

Discharge measurement made on this day.
SAN JQAQUIN RIVER BASIN 331

Middle Pork Stanislaus River at Kennedy Meadows, Calif.

Location. Lat 38 C18' , long 119°45' , in NE£ sec. 11, T. 5 N., R. 20 E. , on right bank at 

upper end of Kennedy Meadows, 1 mile upstream from Deadraan Creek and 2 miles downstream 

from Relief Reservoir.

Drainage area. 49.5 sq mi.

Records available. October 1938 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 6,450 ft (from topographic map).

Average discharge. 18 years (1938-45, 1946-57), 134 cfs (97,010 acre-ft per year).

Extremes.--Maximum discharge during year, 1,040 cfs June 3, 4 (gage height, 5.66 ft); minimum daily, 11 cfs Jan. 29.

1938-57: Maximum discharge recorded, 1,700 cfs Nov. 20, 1950 (gage height, 6.66 ft), 

from rating curve extended above 900 cfs on basis of slope-area determination of peak 

flow; minimum daily recorded, 7.2 cfs Feb. 11, 1948.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Plow regulated by Relief Reservoir (usable capacity, 15,550 acre-ft). 

No diversion.

Cooperation. Water-stage-recorder graph and six discharge measurements furnished by 

pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57, except periods of Ice effect ( 

height, In feet, and discharge, In cubic feet per second)

1.1 

1.5 

2.0 

2.5 

3.0

9.

21

44

78

133

3.5

4.0

221

345

700

1,240

Discharge, In cubic feet"per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

J3

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

167

165

163

163

142

174

176

176

174

193

*245

245

245

243

239

236

232

225

149

122

252

245

241

236

243

250

247

234

225

223

245

6,515

210

12,920

Nov.

270

FTo

160

42

26

26

26

27

28

28

27

25

*24

21

21

20

20

19

16

18

18

16

16

16

15

15

15

15

15

15

1,270

42.3

2,520

Dec.

15

14

15

15

14

16

15

16

16

18

22

20

19

18

17

17

16

16

16

17

16

18

16

16

16

15

15

15

14

14

14

501

16.2

994

Jan.

14

14

13

14

14

14

14

b!2

b!3

b!4

b!3

15

bis

b!5

15

14

14

14

15

15

b!5

b!5

14

14

13

14

b!4

14

v 11

13

13

431

13.9

855

Feb.

13

13

13

14

13

12.

12

13

13

13

17

18

28

28

26

li

34

32

30

27

26

24

28

30

33

29

27

26

-

626

22.4

1,240

Calendar year 1956: Max 1,020 Mln 14

Mar.

25

25

23

22

24

24

26

25

26

24

23

24

23

22

22

22

20

20

20

20

20

20

19

21

22

23

28

34

40

40

38

765

24.7

1,520

Apr.

35

32

38

48

57

60

60

61

66

74

75

70

72

81

69

61

56

52

48

45

43

43

45

50

59

81

97

116

133

132

1,959

65.3

3,890

May

140

136

124

139

168

191

193

158

132

125

115

108

102

104

«94

109

132

195

336

272

247

235

220

220

260

330

400

500

470

490

680

7,125

230

14,130

June

850

900

890

910" 915

*800

710

684

580

328

258

432

536

474

369

342

351

408

512

512

488

477

505

536

548

580

560

540

520

470

16,985

566

33,690

July

400

350

320

300

280

260

240

230

220

205

205

+ 185

174

158

141

129

120

118

114

107

101

93

88

85

85

83

80

76

75

70

66

5,158

166

10,230

Aug.

63

5§

57

55

52

49

46

41

34

35

34

34

33

33

33

32

31

31

29

29

28

*27

26

26

27

26

25

24

24

22

il

1,086

35.0

2,150

Sept.

20

20

20

20

22.

20

20

20

20

20

20

20

20

20

20

19

20

20

19

19

18

18

*18

17

17

17

17

17

18

18

574

19.1

1,140

Mean 216 Ac-ft 156,500

Water year 1956-57: Max 915 Mln 11 Mean 118 Ac-ft 85,280

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.

Npte. No gage-height record May 22-31, June 27 to July 9j discharge estimated on basis of 

recorded range In stage and records for Clark Fork Stanislaus River near Dardanelle.
332 SAN JOAQUIN RIVER BASIN

Clark Fork Stanislaus River near Dardanelle, Calif.

Location. Lat 38°21'50", long 119°52'30", in SE£ sec. 15, T. 6 N. , R. 19 E., on right 

bank 0.3 mile upstream from mouth and 3 miles northwest of Dardanelle.

Drainage area. 65.7 sq mi.

Records available.--October 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 5,500 ft (from topographic map).

Average discharge.--? years, 169 cfs (122,400 acre-ft per year).

Extremes.--Maximum discharge during year, 1,200 cfs June 4 (gage height, 6.96 ft); minimum not determined, occurred during period of ice effect.

1950-57: Maximum discharge, 4,350 cfs Nov. 20, 1950 (gage height, 11.88 ft), from 

rating curve extended above 1,100 cfs on basis of slope-area determination of peak 

flow; minimum, 14 cfs Nov. 22, 1955, but may have been less during period of ice 

effect.

Remarks. Records good except those for periods of ice effect, which are poor. No storage or diversion.

Rating table, water year 1956-57, except periods of ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

2.3

2.5 

3.0 96

4.0

5.0 

7.0

268

505

1,220

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

42

43

 45

46

46

43

45

48

45

44

57

49

47

45

44

43

42

42

41

41

41

40

4T

41

48

52

61

Tf

44

50

46

1,409

45.5

2,790

Nov.

46

46

46

48

50

52

53

56

"5T 58

55

52

50

*46

45

45

44

42

37

47

41

40

39

39

39

39

39

38

38

38

1,365

45.5

2,710

Dec.

38

37

37

37

3£

b35

b40

b50

b60

TO

69

58

49

43

42

41

40

39

b35

b35

b35

b35

b40

b35 

b35

1,309

52.2

2,600

Jan.

b30

b25

b30

b35

b45

b40

b35

b30

 b25

865

27.9

1,720

Feb.

> b30

b35

b35

b35

b45

56

71

87

68

*72

78

72

67

62

61

59

66

75

96_

82

76

73

1,582

56.5

3,140

Mar.

69

70

67

68

78

82

84

82

81

75

75

77

71

69

70

68

64

63

62

62

67

61

62

64

71

71

79

97

~OK 107

yo 

100

2,313

74.6

4,590

Apr.

91

87

32

116

138

151

149

152

160

188

188

176

187

196

160

151

136

125

119

113

110

113

*118

131

151

171

206

250

274

276

4,675

156

9,270

May

301

280

248

306

373

424

416

359

306

282

236

215

214

201

199

254

314

424

395

295

274

*268

244

244

317

407

492

541

500

526 

642

10,497

339

20,820

June

793

842

856

905

874

768

737

695

559

468

473

500

517

*447

402

373

376

419

455

444

421

409

421

431

447

424

412

402

345

510

15,925

531

31,590

July

270

236

214

203

187

166

159

144

133

127

118

112

107

99

95

88

86

83

79

77

73

71

70

69

66

64

67

61

58

56 57

3,495

113

6,930

Aug.

56

54

52

51

50

51

50

47

46

45

44

42

41

40

40

39

38

36

*36

35

35

35

35

34

34

33

32

32

33

33 

33

1,262

40.7

2,500

Sept.

32

32

32

31

32

31

30

30

30

30

30

30

30

30

30

30

33

3J

32

32

30

29

29

28

29

29

28

29

30

32

913

30.4

1,810

Calendar year 1956: Max 1,130 Mln 34 Mean 226 Ac-ft 163,800

Water year 1956-57: Max 905 Min 25 Mean 125 Ac-ft 90,470

Peak discharge (base, 600 cfs). May 18 (9:30 p.m.) 667 cfs (5.52 ft); June 4 (8 p.m.) 1,200 cfs

(6.96 ft); June 25 (8:30 p.m.) 632 cfs (5.42 ft).

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SAN JOAQUIN RIVER BASIN 333

Middle Fork Stanislaus River at Hells Half Acre Bridge, Calif.

Location. Lat 38°15'06", long 120°01'51", in SE$ (revised) sec. 30, T. 5 N. , R. 18 E., 

on right bank 800 ft upstream from Hells Half Acre Bridge, 1.5 miles upstream from Cow 

Creek, and 4 miles northwest of town of Strawberry.

Drainage area. 280 sq mi.

Records available. February 1956 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 3,450 ft (from topographic map).

Extremes. Maximum discharge during year, 2,950 cfs June 6 (gage height, 6.77 ft); minimum, 12 cfs Sept. 18.

1956-57: Maximum discharge, 4,780 cfs May 23, 1956 (gage height, 8.35 ft); minimum, 

that of Sept. 18, 1957.

Maximum stage known since at least 1905, 17.72 ft on Dec. 23, 1955, from floodmarks 

(discharge, 26,600 cfs on basis of slope-area determination).

Remarks. Records good except those for period of ice effect, which are poor. Flow regulated by Relief Reservoir since 1909 and by Donnells Reservoir since April 1957.

Rating table, water year 1956-57, except period of ice effect (g

height, in feet, and discharge, In cubic feet per second)

1.7 

2.0 

2.5

1Z

45

1Z1

3.0 

3.5 

4.0

Z41 

400 

620

5.0 

6.0 

6.7

1,270 

Z.150 

Z.870

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

195

227

 241

233

230

221

238

252

244

235

305

302

305

299

293

287

284

281

275

159

269

287

293

278

290

309

345 296"

284

315

302

8,354

269

16,570

Nov.

331

331

312

159

145

139

141

145

152

152

145

139

133

125

114

116

116

110

105

92.

107

107

103

101

100

100

98

97

97

95

4,207

140

8,340

Dec.

95

95

95

97

110

90

92

90

95

107

123

145

T35

129

114

114

*103

103

100

90

95

82

103

95

90

87

89

93

95

93

95

3,139

101

6,230

Jan.

84

87

90

82

93

81

80

93

75

15

90

100

150

116

107

95

92

93

98

105

100

92

> b80

(*)

2,803

90.4

5,560

Feb.

97

97

87

89

90

95

95

105

105

101

213

233

261

334

318

315

400

345

309

287

258

168

284

428

754

610

620

570

-

7,668

274

15,210

Mar.

535

506

463

435

653

702

620

575

565

511

471

488

*451

428

410

393

372

358

348

338

345

334

321

321

341

351

379

424

484

506

525

13,953

450

27,680

Apr.

511

493

*502

540

580

610

605

595

580

605

605

605

610

675

34?

620

595

560

545

535

463

467

351

195

200

208

233

261

290

*296

14,577

486

28,910

May

281

284

258

263

290

296

376

506

493

434

230

216

210

210

197

255

284

947

1,700

1,790

1,670

1,620

1,130

1,230

1,470

1,600

2,030

2.500

1,750

901

*1,620

26,841

866

53,240

June

2,470

2.800

2,700

2,620

2,700

Z',750

2,670

2,510

1,910

969

1,210

1,290

1,740

*1,750

945

655

415

816

1,080

582

725

658

750

884

958

1,020

985

891

742

675

42,626

1,421

84,550

July

264

~50 589

49

45

44

44

40

58

55

54

33

52

52

51

24

58

92

114

45

59

65

54

29

28

28

26

26

 "oH" 25

*Z5

25

1,841

59.4

3,650

Aug.

29

60

57

55

26

24

25

22

22

21

21

20

20

20

20

19

19

19

28

25

20

22

21

20

20

20

19

19

19

20

20

728

25.5

1,440

Sept.

19

19

19

19

19

18

18

18

18

18

19

19

19

19

19

19

20

18

19

18

18

18

18

18

17.

17

17

17

18

*18

550

18.3

1,090

Calendar year 1956: Max - Mln - Mean - Ac-ft -

Water year 1956-57: Max 2,800 Mln 17 Mean 349 Ac-ft 252,500

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
334 SAN JOAQUIN RIVER BASIN

Lake Hartley near Strawberry, Calif.

Location. Lat 38° 12'17", long 120°04'31", in w£ sec. 14, T. 4 H., R. 17 E., in hoist 

house of Beardsley Dam on Middle Fork Stanislaus River, 2.4 miles upstream from Spring 

Gap powerhouse, 3.9 miles west of Strawberry, and 4.7 miles west of Pinecrest.

Drainage area. 303 sq mi.

Records available.--June to September 1957.

Gage.--Water-stage recorder. Datum of gage is 7.84 ft above mean sea level (levels by 

Cakdale and South San Joaquin Irrigation Districts).

Extremes.--Maximum contents during period June to September, 98,670 acre-ft June 27 (gage 

height, 3,398.2 ft); minimum, 34,080 acre-ft Sept. 30 (gage height, 3,291.9 ft).

Remarks.--Reservoir is formed by concrete gravity-type dam completed in 1957. Capacity, 

98,300 acre-ft between gage heights 3,145.0 (tunnel invert) and 3,398.0 ft (top of 

spillway gates).

Reservoir is used for power and conservation storage. Water passes through powerplant and down Middle Fork Stanislaus River to Melones Reservoir (see p. 344). Records 

show total contents at 12 p.m., all of which is available for release.

Capacity table, water year 1956-57 (gage height, 

In feet, and contents. In acre-feet)

3,290

3,320

3,350

3,370

3,398

33,140

48,780

66,370

79,160

98,520

Total contents, in acre-feet, at 12 p.m., June to September 1957

Day

1 

2

3

4

5

6

7

8

9 

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

(t)

(*)

, Ocb. Nov. Dec. Jan. Feb. Mar. Apr. May

'

3,371.6

June

84,580 

90,430

96,580

96,580

95;370

95,440

95,510

95,650

95,220 

95,150

97,440

98,230

98,090

97,870

97,300

96,870

97,080

97,440

97,950

96 , 940

97,510

98,090

97,950

97,510

97,660

98,160

98,670 

97,300

97,590

97,370

3,396.4

+17,150

July

97,300 

98,090

98,020

97,730

97,730

97,590

97,660

97,800

98,250 

97^800

97,440

97,160

96 , 800

96,510

96,150

95,650

94,660

93,730

93,450

92,680

91,760

91,690

90,990

90,290

89,460

88,900

88,140 

87,590

86,770

86 , 080

85,400

3,379.3

-11,970

Aug.

84,850 

83,900

83,030

82,220

81,420

81,150

80,880

80,620

80,020 

78,890

77,770

76,860

5,810

4,970

4,520

3,620

2,660

1,760

0,880

69,930

68,920

67,980

67,420

66,310

62,260

64,340

63,430 

62,520

61,670

60,710

59,700

3,339.0

-25,700

Sept.

58,650 

57,570

56,690

55,880

54,950

54,080

53,220

52,200

51,460 

50,750

49,890

49,060

48,250

47,240

46,200

45,590

44,630

43,830

45,050

42,240

41,240

40,550

59,520

58,750

57,940

37,180

36,320 

35,420

34,470

54,080

3,291.9

-25,620

t Gage height, In Feet, at end of month.

t Change in contents. In acre-Feet, at end of mont'
SAN JOAQUIN RIVER BASIN 335

Middle Pork Stanislaus River below Beardsley Dam, Calif.

Location. Lat 38° 11'36", long 120°05'53", in NWi sec. 22, T. 4 N., R. 17 E., on right 

bank 0.5 mile downstream from Beardsley powerhouse afterbay dam, 1.5 miles downstream 

from Beardsley Dam, and 5.7 miles west of Pinecrest.

Drainage area.--311 sq mi.

Records available. December 1956 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 3,130 ft (from topographic map).

Extremes. Maximum discharge during period January to September, 3,950 cfs June 4 (gage 

height, 9.26 ft); minimum not determined.

Remarks. Records excellent except those below 70 cfs, which are poor. No diversions 

above station. Plow regulated by Lake Hartley since January 1957.

Rating table, water-year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.1

1.2

1.7 

2.0 

2.5 

3.0

9.

18

30

53

100

155

3.5 

4.0 

4.5 

5.0 

6.0 

7.0 

9.0

226

318

450

640

1,120

1,760

3,630

Discharge, In cubic feet per second, December 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct. Nov. Dec.

_

-

-

.

-

_

_

-

~

-

_

-

-

~

-

_

-

-

*1O3

100

95

88

93

1O2

96

80

90

93

94

93 

91

_

.

-

Calendar year : Max

Jan.

90

78

89

88

79

89

76

82

84

69

89

98

148

153

To

5

5

5

5

5

5

5

5

5

5

5

5

5

*f72

148 

150

1,807

58.3

3,580

Feb.

165

174

174

174

171

167

1.62

157

154

150

154

178

188

182

189

194

198

202

210

234

247

256

269

274

ZTS

269

260

262

-

5,687

203

11,280

Mln

Mar.

271

274

280

288

298

284

280

284

294

292

292

f!29

5

**5

f33

f!76

249

f!71

flOl

5

5

5

5

5

5

5

5

5

f84

253 

278

4,666

151

9,250

Apr.

280

278

*274

282

286

286

280

286

296

502

292

288

294

300

300

302

211

264

19

5_

5

5

5

5

5

5

5

5

5

*240

5,410

180

10,730

May

390

348

360

352

362

454

516 499"

478

320

318

358

248

34O

358

360

360

368

372

429

*379

*337

351

362

324

155" 245

499

433

492 

456

11,873

383

23,550

June

496

485

453

2,540

5.280

2,780

2,660

2,360

2,240

1,110

502

769

1,860

1,890

*1,630

1,430

855

744

1,460

1,760

1,200

1,090

1,480

1,590

1,380

1,230

1,230

2,040

1,350

1,350

44,924

1,497

89,110

July

895

600

752

920

73?

620

620

620

436

600

608

608

612

612

612

562

600

624

652

628

636

510

572

620

640

654

656

568

568

580 

564

19,448

627

58,570

Aug.

*414

548

608

628

636

512

447

471

540

662

640

576

592

616

452

552

588

608

592

604

612

608

506

520

576

588

596

592

568

572 

584

17,588

567

34,890

Sept.

588

584

584

580

576

576

572

568

560

544

516

540

540

540

536

536

532

528

524

468

492

510

506

612

B44

411

4TT

457

478

482

15,901

530

31,540

Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

** Field estimate made on this day.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights. 

Note. No gage-height record Jan. 16-28, Mar. 13, 14, 20-28, Apr. 17, 19-30; discharge estimated 

on basis of 1 discharge measurement and release at Beardsley Dam.
336 SAN JOAQUIN RIVER BASIN

Middle Pork Stanislaus River at Sand Bar Flat, near Avery, Calif.

Location. Lat 38"II 1 , long 120°09', In sec. 19, T. 4 N., R. 17 E., on left bank 1 mile 

upstream from diversion dam of Pacific Gas & Electric Co. at Sand Bar Flat and 

11 miles southeast of Avery.

Drainage area. 318 sq ml.

Records available. September 1905 to September 1957.

Sage. Water-stage recorder. Altitude of gage Is 2,650 ft (from topographic map). Prior 

fo Mar. 19, 1928, staff gage at diversion dam 1 mile downstream at different datum. 

Mar. 19, 1928, to October 1938, water-stage recorder at site 150 ft downstream at 

present datum.

Average discharge. 51 years (1905-8, 1909-57), 698 cfs (505,300 acre-ft per year).

Extremes . Maximum discharge during year, 4,350 cfs June 4 (gage height, 10.40 ft); mlnlmum dally, 28 cfs Jan. 27.

1905-57: Maximum discharge, 26,000 cfs Dec. 23, 1955 (gage height, 20.2 ft, from 

floodmarks), from rating curve extended above 6,000 cfs on basis of determination of 

peak flow over dam; minimum dally, that of Jan. 27, 1957.

Revisions. The maximum discharge for the water year 1938 has been revised to about 

24,000 cfs Dec. 11, 1937 (gage height, 21.0 ft, from floodmarks, at site then In use), 

superseding figure published In WSP 843 and 861.

Remarks.--Records good. Flow regulated by Relief Reservoir since 1909 (capacity,

15,600 acre-ft), Donnells Reservoir since April 1957 (capacity, 64,600 acre-ft), and 

Lake Harley since January 1957 (capacity, 98,300 acre-ft). Water diverted by Philadelphia Canal (see p. 341 ) from South Fork Stanislaus River through Spring Gap powerhouse Into Middle Fork above station. Stanislaus tunnel diverts 1 mile downstream to 

Stanislaus powerhouse on Stanislaus River at Stanislaus.

Coot aration. Water-stage-recorder graph and seven discharge measurements furnished by 

racific Gas & Electric Co. In connection with a Federal Power Commission project.

Revisions [water years) . WSP 831: 1935-36. WSP 1445: 1951{P).

Rating table, water year 1956-57 (gage height, In feet, and 

discharge, in cubic feet per second)

2.5

2.6 

3.0 

3.5 

4.0

81

143

223

5.0 

6.0 

7.0 

8.0 

10.0

474

840

1,350

2,030

3,880

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

31

Total

Mean

Ac-ft

Oct.

200 ?55~

296

299

296

276

294

318

308

*299

337

379

371

368

361

353

350

345

340

246

273

350

368

345

355

379

427

35T

353

371

401

10,324

333

20,480

Calendar yea

Nov.

392

406

40T

256

209

191

193

200

207

210

207

196

164

160

147

*149

149

147

142

126

129

146

124

129

129

124

122

121

117

TIT

. 5,510

184

10,930

Dec.

117

117

117

119

136

122

108

110

111

124

133

172

144

150

140

129

122

*117

116

106

114

108

109

119

114

97

1OT

111 111

110

109

5,716

120

7,370

Jan.

108

97

110

110

98

117

102

110

110

84

104

117

178

177

88

34

21

30

29

32

31

29

30

30

30

30

28

BT

89

170

172

2,542

82.0

5,040

Feb.

185

200

196

198

196

*193

188

183

182

178

180

198

209

202

209

212

218

219

227

251

272

281

315

318" 330

318

306

301

6,465

231

12,820

- 1956: Max 5,160 Mln 97

Mar.

303

308

313

325

561

335

322

325

348

342

337

212

81

77

91

226

303

224

166

72

70

69

69

67

66

66

66

 §? 57

281

313

6,287

203

12,470

Apr.

310

303

*303

320

332

340

330

340

348

558

350

540

348

355

353

353

246

337

82

47

42

39

58

3S

43

55

71

65

66

265

6,815

227

15,520

May

454

582

412

398

412

500

561

544

526

372

571

409

297

576

*409

412

415

430

436

484

437

390

396

413

376

286

ST4

490

426

493

464

13,165

425

26,110

June

537

526

480

2,430"

5.630

3,000

2,890

2,500

2,550

1,140

540

759

1,950

2,010

1,700

1,470

962

761

1,470

1,450

1,250

1,060

1,520

1,650

1,580

1,500

1,240

2,060

1,340

1,340

46,855

1,562

92,940

July

945

627

772

898

748

648

645

638

433

634

645

*648

652

652

652

602

654

654

645

642

645

554

578

631

645

656

648

592

586

592

589

20,110

649

39,890

Aug.

464

5BT

606

631

638

548

487

506

561

662

652

606

606

628

472

554

603

610

578

589

*596

596

513

523

564

578

589

«00

578

578

589

17,859

576

35,420

Sept.

592

589

592

600

606

610

606

603

603

592

564

582

586

586

586

582

578

561

547

520

540

554

554

658

59T

477

513" 474

526

553

17,086

570

53,890

Mean 1,O64 Ac-ft 770,200

Water year 1956-57 : Max 3,630 Mln 28 Mean 429 Ac-ft 310,900

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 337

North Pork Stanislaus River below Silver Creek, Calif.

Location. Lat 38°26'20", long 120°00'20", in SEj- sec. 20, T. 7 N., R. 18 E., on right 

bank 100 ft downstream from Silver Creek and 5.6 miles northeast of Big Meadow.

Drainage area. 29.2 sq mi.

Records available.--October 1952 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 6,800 ft (from topographic map).

Average discharge. 5 years, 73.2 cfs (52,990 acre-ft per year).

Extremes. Maximum discharge during year, 1,320 cfs May 18 (gage height, 9.07 ft), from 

rating curve extended above 500 cfs by logarithmic plotting; minimum daily, 2.7 cfs 

Oct. 1.

1952-57: Maximum discharge, 1,370 cfs Dec. 23, 1955 (gage height, 9.17 ft), from 

rating curve extended above 500 cfs by logarithmic plotting; minimum daily, 1.8 cfs 

Oct. 14, 1952.

Remarks. Records good. Plow regulated at low and medium stages by Lake Alpine, Union, 

and Utica Reservoirs (combined capacity, 9,600 acre-ft). No diversion.

Cooperation. Water-stage-recorder graph and five discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height. In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used July 6-16)

1.2 

1.4 

1.8 

2.0 

2.3 

2.6 

3.0

2.5

3.4

6.2

7.9

12

17

28

3.5

4.0 

5.0 

6.0 

7.0 

8.0

148

300

530

870

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.7

178

3.8

4.0

3.2

2.8

3.1

3.0

*2.9

4.4

5.6

4.8

4.8

4.8

8.8

35

39

44

45

47

47

48

48

48

48

30" 51

47

46

47

47

798.5

25.8

1,580

Nov.

46

46

46

47

51

54

56

56

54

52

50

49

48

47

46

46

46

46

46

 48

51

51

54

58

B7

58

58

54

49

49

1,520

50.7

3,010

Dec.

48

49

50

50

50

49

49

49

48

49

57

45

14

11

7.9

7.3

6.4

5.9

5.4

5.0

4.6

4.0

3.9

3.8

5.6

3.6

3.6

3.6

3.9

3.8

3.6

692.9

22.4

1,370

Calendar year 1956 : Max 800

Jan.

3.4

3.3

3.2

3.1

3.0

2T9" 2.9

3.0

3.0

3.0

3.1

13

13- 14

13

12

12

12

12

13

12

12

12

12

12

12

12

12

12

11

8 .4

275.3

8.88

546

Feb.

5.9

5.9

5.7

5.7

5.7

5.6

57S

5.6

5.6

6.1

25

30

39

52

47

46

54

44

39

31

22

19

17

22

77

56

45

42

-

764.4

27.3

1,520

Mar.

34

38

36

42

62

62

66

60

60

50

49

59

47

44

47

46

42

39

39

44

49

43

42

45

53

54

74

100

~9T 122

85

1,726

55.7

3,420

Apr.

65

59

FT

120

123

116

97

88

116

205

212

192

198

249

192

152

121

109

82

74

71

90

116

145

171

199

236

276

290

274

4,525

151

8,980

May

294

296

236

267

314

330

326

270

218

201

178

166

168

178

164

212

252

4f9" 651

267

226

230

202

181

211

278

308

330

284

269

310

8,316

268

16,490

June

330

327)

304

292

288

261

 222

211

195

164

141

141

143

135

109

90

76

70

76

79

74

66

58

54

51

47

43

38

34

30

4,142

138

8,220

July

24

18

15

12

11

9.6

9.0

8.4

7.4

6.7

5.8

5.0

4.4

3.8

la

 4.8

21

28

31

35

35

34

34

33

31

31

33

35

38

41

44

652.0

21.0

1,290

Aug.

46

46

46

46

49

48

50

52

50

46

48

52

54

56

56

56

56

54

52

51

51

51

50

50

50

52

54

55

57

5T

56

1,596

51.5

3,170

Sept.

54

54

53

52

51

50

54

So" 60

58

58

48

46

50

53

54

58

55

52

52

52

54

56

 50

45

45

38

30

22

11

1,475

49.2

2,930

Mln 2.7 Mean 109 Ac-ft 79,050

Water year 1956-57 : Max 651 Mln 2.7 Mean 72.6 Ac-ft 52,530

Discharge measurement made on this day.
338 SAN JOAQUIN RIVER BASIN

Highland Creek below Spicer Meadows Reservoir, Calif.

Location. Lat 38 0 23'50", long 119°59'30", in SW^ sec. 3, T. 6 N., R. 18 E., on right 

bank Just downstream from Spicer Meadows Reservoir dam, 5.5 miles upstream from mouth 

and 7 miles east of Big Meadow.

Drainage area. 43 sq mi, approximately.

Records available.--October 1952 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 6,350 ft (from topographic map).

Average discharge. 5 years, 120 cfs (86,880 acre-ft per year).

Extremes.--Maximum discharge during year, 3,000 cfs May 18 (gage height, 8.48 ft), from 

rating curve extended above 1,200 cfs by logarithmic plotting; minimum daily, 2.3 cfs 

Aug. 12-21.

1952-57: Maximum discharge, 8,800 cfs Dec. 23, 1955 (gage height, 11.50 ft), from 

rating curve extended above 1,200 cfs by logarithmic plotting; minimum daily, 0.1 cfs 

Oct. 30 to Nov. 4, 1952, Nov. 9, 14, 1954, Oct. 20-30, 1955.

Flood of Nov. 20, 1950, reached a stage of 11.50 ft, from Pacific Gas & Electric Co. 

recorder chart (discharge, 8,800 cfs).

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Flow regulated by Spicer Meadows Reservoir (capacity, 4,060 acre-ft).

Cooperation. Water-stage-recorder graph and five discharge measurements furnished by 

Pacific Gas & Electric Co., in connection with a Federal Power Commission project.

Rating table, water- year 1956-57 (gage height, in feet, and 

discharge, in cubic feet per second)

0.7 

1.0 

1.3 

1.7 

2.3 

3.0

4.2 

5.0

73

136

243

450

890

1,550

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

e

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

47

50

30- 51

50

50

48

47

»45

44

42

40

39

38

21

12

11

11 

5.9

2.4

2.5

2.5

2.5

2.5

2.5

2.6

2.7

2.7

2.8

2.9

3.0

733.5

23.7

1,450

Nov.

3.0

3TT

3.1

3.1

3.1

3.2

3.2

3.3

3.4

3.4

3.4

3.4

3.4

3.5

3.5

3.5

3.5

3.5 

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

11

18

Iff

138.1

4.60

274

Dec.

1818-

18

18

18

18

17

17

17

17

13

6.2

37?

6.2

6.2

6.3

6.3

6.4 

6.4

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

317.2

10.2

629

Jan.

6.6 676"

6.6

6.

6.

6.

6.

6.

6.

6.

6.

6.

6.

6.

6.

6.

6.

6. 

6.

6.

6.

6.

6.

6.

6.8

6.8

6.9

6.9

6.9

6.9

9 3 

210.9

6.80

418

Feb.

14

13

T2- 12

12

12

12

12

12

12

12

12

12

13

13

14

14

14 

56

93

79

69

89

124

299

182

150

136

.

1,504

53.7

2,980

Calendar year 1956: Max 5,040 Min 0.1

Mar.

115

126

106

93

115

156

164

140

131

100

101

108

86

79

86

75

65

65 

70" 63

77

65

64

74

97

99

133

205

'SCT 282

197

3,538

114

7,020

Apr.

150

130

165

251

310

325

287

287

301

360

338

301

330

485

310

262

209

186 

158

143

137

154

170

220

269

308

372

455

483

TZTH" 4bo

8,324

277

16,510

May

534

510

381

481

613

650

650

492

355

330

280

251

251

256

255

310

375

1.300 

881

500

420

430

390

350

390

510

560

610

550

520

14,945

482

29,640

June

668

690

632

627

588

570

*530

*485

405

340

345

355

378

305

256

226

224

251 

273

260

235

224

222

218

205

193

179

164

146

117

10,311

344

20,450

July

~9T 104

75

69

64

61

61

50

44

39

36

32

30

27

24

»21

18

17 

16

14

12

10

9.2

8.2

7.0

6.6

6.0

5.8

5.8

5.3

4.5

973.4

31.4

1,930

Aug.

4.0

377

3.4

3.1

2.9

2.7

2.7

2.5

2.5

2.4

2.4

l^-

?73

2.3

2.3

2.3

2.3

2.3 

2.3

2.3

2.3

2.4

2.4

2.4

2.4

2.4

2.5

2.5

2.6

2.6

2.6

80.1

2.58

159

Sept.

2.6

2.6

2.6

2.5

275

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.6

2.6

2.6 

2.6

2.6

2.6

2.5

2.5

»11

23

23

28

34

34

34

245.4

8.18

487

Mean 171 Ac-ft 123,900

Water year 1956-57 : Max 1,300 Mln 2.3 Mean 113 Ac-ft 81,950

* Discharge measurement made on this day. 

Note.--No gage-height record May 20-30, June 6, 7; discharge estimated on basis of 1 discharge 

measurement and records for North Pork Stanislaus River below Silver Creek.
SAN JOAQUIN RIVER BASIN 339

North Fork Stanislaus River near Avery, Calif.

Location. Lat 38°14'45", long 120°17'20", in sec. 35, T. 5 N., R. 15 E., on right bank

700 ft upstream from intake of Utica Canal, 3.3 miles upstream from Beaver Creek, and

5.1 miles northeast of Avery. 

Drainage area. 163 sq mi.

Records available.--July 1914 to September 1922, November 1928 to September 1957. 

Gage. Water-stage recorder. Altitude of gage is 3,400 ft (from topographic map). July

1914 to September 1922 staff gage at same site at datum 0.05 ft lower. 

Average discharge. 36 years (1914-22, 1929-57), 427 cfs (309,100 acre-ft per year). 

Extremes. Maximum discharge during year, 14,300 cfs May 18 (gage height, 11.18 ft), from

rating curve extended above 4,500 cfs as explained below; minimum daily, 18 cfs Jan. 7. 

1914-22, 1928-57: Maximum discharge, 32,000 cfs Dec. 23, 1955 (gage height,

14.23 ft, from floodmarks), from rating curve extended above 4,500 cfs on basis of

slope-area determination at gage height 13.8 ft; minimum daily, 5.5 cfs Dec. 6, 7, 1929. 

Revisions. The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede figures published in the water-supply

papers indicated.

WSP

411 

736 

811 

901

Water 

year

1915 

1932 

1936 

1940

Date

May 11 , 

May 11 , 

June 7 , 

Mar. 26,

1915 

1932 

1936 

1940

Discharge 

(cfs)

6,210 

4,690 

5,810 

9,160

Gage height 

(feet)

t8.7 

7.90 

8.50 

9.82

t Maximum observed.

Remarks. Records good. Flow regulated at low and medium stages by four reservoirs (combined capacity, 13,600 acre-ft). Diversion of a maximum of 10 cfs during summer from 

Beaver Creek into river above station.

Cooperation. Water-stage-recorder graph and eight discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Revisions (water years). WSP 1215: 1938(M). Revised figure of discharge, in cubic feet 

per second, for the water year 1938, superseding that published in WSP 861, is given 

herewith:

Dec. 11, 1937. 19,200

Month

Water year 1937-38 ...........................

Cfs-days

282,625

Maximum

19,200

Minimum

34

Mean

774

Runoff in 

acre-feet

560,600

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Cale

Oct.

55 

58 

60

68

70

63

62

*63

60

58

62

62

56

53

51

43

48

59 

63

63

57

56

70

69

64

67

107

T8

66

*87

92

1,990

64.2

3,950

idar yeai

Nov.

65 

61 

63

63

65

71

73

76

75

72

69

66

63

61

59

58

57

57 

55

54

58

63

61

64

68

68

68

67

66

73

1,939

64.6

3,850

Dec.

73 

72 

73

79

*96

84

76

79

82

83

91

-JI 110

53

42

34

31

28 

26

25

24

23

24

23

23

21

20

20

21

22

21

1,550

50.0

3,070

Jan.

21 

20 

20

20

20

19

18

n

19

21

21

25

117

82

58

50

46

45 

43

51

49

43

*43

41

41

41

40

41

38

37

38

1,189

38.4

2,360

Feb.

% 

40

39

38

36

39

57

57

48

127

191

216

276

272

238

224

246 

218

276

261

228

508

820

1.600

881

642

576

-

8,229

294

16,320

- 1956: Max 4,850 Min 20

Mar.

461 

498 

458

458

914

859

710

602

610

507

467

530

*455

408

425

406

352

347 

324

332

368

324

304

317

384

386

626

622

979 4Ac: 785

760

15,978

515

31,690

Apr.

594 

498 538"

780

949

1,030

881

876

842

1,090

1,150

967

1,020

1,510

1,160

925

750

702 

598

548

501

562

590

*706

848

955

1,150

1,390

1,290

1,520

26,920

897

53,400

May

1,560 

1,710 

1,290

1,420

1,710

1,840

1,920

1,600

1,140

1,060

931

854

*842

892

790

955

1,420

4.450 

3,900

1,780

1,280

1,030

1,300

1,160

1,220

1,550

1,690

1,870

1,600

1,480

1,690

47,934

1,546

95,080

June

1,750 

1.820 

,690

,640

,520

,300

,090

992

925

740

881

670

688

618

514

455

414

414 

455

452

420

381

357

357

330

322

287

264

241

204

22,191

740

44,020

July

m138

135

122

115

113

106

96

87

81

77

70

66

62

58

53

51 

71

72

74

72

70

67

63

60

59

59

59

61

63

2,633

84.9

5,220

Aug.

65 

68 

66

65

66

69

69

70

71 ~SB

62

55

68

70

71

70

70

69 

67

64

64

63

63

63

63

62

64

67

69

70

70

2,071

66.8

4,110

Sept.

69 

68 

66

65

64

63

62

67

70

70

70

70

59

57

61

64

70

75 

70

65

64

64

65

67

*63

76

75

73

72

70

2,015

67.2

4,000

Mean 593 Ac-ft 430,500

Water year 1956-57: Max 4,450 Mln 18 Mean 369 Ac-ft 267,100

Peak discharge (base, 2,000 cfs).--May 7 (l a.m.) 2,270 cfs (6.12 ft); May 18 (10:30 p.m.) 

14,300 cfs (11.18 ft); May 28 (4:30 a.m.) 2,150 cfs (6.00 ft); June 2 (1:30 a.m.) 2,270 cfs 

(6.12 ft).

* Discharge measurement made on this day.

510529 O - 59 - 23
340 SAN JOAQUIN RIVER BASIN

South Fork Stanislaus River at Strawberry, Calif.

Location. Lat 38°12', long 120°01', in SW^ sec, 16, T. 4 N., R. 18 E. , on right bank at 

Strawberry, 0.1 mile downstream from bridge on State Highway 108 and 0.5 mile downstream from Herring Creek.

Drainage area. 45.5 sq mi.

Records available. October 1911 to January 1917, August 1938 to September 1957. Published as "near Confidence" 1911-13.

Gage. Water-stage recorder. Altitude of gage is 5,350 ft (from topographic map). 

1911-17, staff gage at site 1 mile downstream at different datum.

Average discharge. 19 years (1938-57), 127 cfs (91,940 acre-ft per year).

Extremes. Maximum discharge during year, 1,580 cfs May 18 (gage height, 6.13 ft); minimum daily, 17 cfs Dec. 20.

1911-17, 1938-57: Maximum discharge, 3,900 cfs Nov. 21, 1950 (gage height, 9.25 tt\ 

from rating curve extended above 1,100 cfs on basis of contracted-opening determination 

of peak flow at bridge 0.3 mile below station; minimum, 1.3 cfs Nov. 22, 23, 1946.

Revisions. The maximum discharge for water year 1943 has been revised to 1,620 cfs 

June 1, 1943 (gage height, 6.20 ft), superseding figure published in WSP 981.

Remarks. Records good. Flow regulated at low and medium stages by Strawberry Reservoir 

beginning in 1916 (capacity, 18,300 acre-ft. No diversion.

Cooperation. Water-stage-recorder graph and nine discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Revisions (water years).--WSP 1215: 1945(M). Revised figures of discharge, in cubic 

feet per second, for the water year 1916, superseding those published in WSP 441, 

are given herewith:

in. 11-16 .......... t40

18 .......... 200

19 .......... 200

20 .......... 150

21-25 .......... tlOO

t Average for period Indicated.

1916-Con.

Jan. 26-31 .......... t80

Feb. 1-5 .......... t60

6-10 .......... t70

11 .......... 90

12 .......... 90

Month

January 1916 ..................... .

February ..................

Water year 1915-16. ............ ... .

Calendar year 1916 ................

Maximum Minimum Mean Runoff In 

acre -feet

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.5 

1.7 

2.0 

2.5 

3.0

54 

1Z8 

Z28

3.5 

4.0 

5.0 

6.0

346

505

950

1,500

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

66

6S

66

65

65

64

64

63

63

63

*61

6T

61

61

61

61

61

61

61

61

61

61

61

61

61

61

61

61

61

61

61

1,926

62.1

3,820

Nov.

61

ST

61

60

60

60

59

59

59

59

59

59

40

49

49

49

49

49

49

47

*46

47

44

35" 35

35

35

35

35

35

1,480

49.3

2,940

Dec.

35SB"

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

*28

17

30

26

25

25

25

25

25

25

25

25

25

956

30.8

1,900

Jan.

25

27

31

26

29

34

34

34

34

34

34

35

38

36

35

35

34

34

34

34

34

34

34

34

34

34

34

34

34

43

51_

1,063

34.3

2,110

Feb.

61

64

5*

64

64

64

64

56

50

49

42

*32

2626~

26

29

34

34

33

33

33

32

37

41

52

49

44

40

_

1,243

44.4

2,470

Mar.

37

36

34

35

44

48

47

47

46

43

53

*££

67

67

69

69

66

65

64

64

64

64

63

63

63

64

67

51

41

35

36

1,681

54.2

3,330

Apr.

33

*32

30

44

59

66

66

67

70

86

85

72

82

92

72

66

56

50

45

44

40

40

39

43

57

78

107

138

141

TIT

2,041

68.0

4,050

May

156

141

130

175

208

225

228

198

257

261

230

206

132

*88

94

231

239

585

963

38?

286

301

243

279

369

540

674

674

584

572

732

10,390

335

20,610

June

890

890" 935

900

870

*760

652

634

540

407

389

440

460

404

325

313

308

346

389

360

320

303

296

301

270

257

239

215

194

151

13,758

459

27,290

July

1|1

Tf

80

67

59

52

57

48

47

57

64

64

*64

64

64

65

54

38

37

37

37

37

38

36

57

37

37

37

38

40 

40

1,652

53.3

3,280

Aug.

37

36

37

37

42

47

46

45

45

45

45

45

45

45

45

45

44

30

20

20

22

*24

24

24

24

24

31

37

37

37

37

1,122

36.2

2,230

Sept.

37

37

44

52

61

66

66

66

66

66

66

66

66

66

66

66

66

40

50

67

67

67

66

79

86

97

99

W

97

97

2,034

67.8

4,030

Calendar year 1956 : Max 1,190 Mln 17 Mean 194 Ac-ft 140,600

Water year 1956-57: Max 963 Mln 17 Mean 108 Ac-ft 78,060

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 341

Philadelphia Canal near Strawberry, Calif.

Location. Lat 38°11', long 120°03', In sec. 30, T. 4 N., R. 18 E., on right bank 250 ft 

downstream from diversion dam on South Pork Stanislaus River and 3 miles southwest of 

Strawberry Post Office.

Records available . October 1939 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,800 ft (from 

topographic map).

Average discharge. 18 years, 43.6 cfs (31,570 acre-ft per year).

Extremes. 1939-57: Maximum daily-discharge, 64 cfs Dec. 11, 1941; no flow at times 

during each year except 1943, 1946-47, 1955-57.

Remarks. Records excellent. Canal diverts from right bank of South Pork Stanislaus 

River for power development in Spring Gap powerplant of Pacific Gas & Electric Co.; 

tailrace empties into Middle Pork Stanislaus River above station at Sand Bar Plat.

Cooperation. Water-stage-recorder graph and six discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

58

55

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

57

55

58

58

58

58

57

57

1,795

57.9

3,560

Nov.

57

58

55

58

58

58

58

58

58

58

58

58

29

45

40

39

39

39

39

39

*39

39

38

33

32

30

30

30

30

30

1,330

44.3

2,640

Dec.

30

3(5

30

30

30

30

30

30

30

25

20

20

20

20

20

20

20

20

*18

4.8

19

20

20

20

19

19

20

20

20

20

20

694.8

22.4

1,380

Calendar year 1956: Max 60

Jan.

19

T9

24

21

24

30soso

30

26

20

20

26

30

30

30

30

30

30

30

30

30

30

30

30

30

b30

b30

30

30

30

859

27.7

1,700

Feb.

30

30

30

30

30

30

30

30

30

30

27

*20

20

20

20

20

20

20

19

19

26

30

31

31

38

42

4?

34

779

27.8

1,550

Mar.

30

3(5

30

30

31

30

30

38

44

43

45

58

57

58

58

58

58

58

58

58

58

58

58

58

58

58

58

47

34

36

40

1,465

47.3

2,910

Apr.

35

*31

33

41

55

57

58

58

57

59

58

56

58

59

56

54

52

47

40

36

32

30

3(5

31

39

52

59

60

55

58

1,449

48.3

2,870

May

59

57

56

59

59

58

58

57

58

57

57

58

54

*55

57

60

55

56

48

49

53

56

56

58

57

57

29

17

16

TS

39

1,584

51.1

3,140

June

59

55

55

55

55

54

BT

55

55

57

57

58

58

57

54

56

57

58

57

56

56

58

58

59

56

56

56

57

56

54

1,691

56.4

3,350

July

56

57

BT

57

56

50

50

42

43

54

57

57

57

56

56

57

43

30

3(5

30

30

30

30

30

30

30

30

30

30

30

32

1,327

42.8

2,630

Aug.

33

30

30

29

33

40

39

39

39

39

40

40

40

40

40

40

40

27

15

14

.14

*14

16

17

17

17

24

32

32

32

32

934

30.1

1,850

Sept.

32

37

36

47

55

58

55

58

58

58

58

58

58

58

58

58

58

39

38

58

58

58

58

58

58

58

58

58

58

58

1,613

53.8

3,200

Mln 4.8 Mean 51.9 Ac-ft 37,660

Water year 1956-57: Max 60 Mln 4.8 Mean 42.5 Ac-ft 30,780

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
342 SAN JOAQUIN RIVER BASIN

Tuolumne Canal near Long Barn, Calif.

Location. Lat 38°05', long 120°11', in sec. 25, T. 3 N., R. 16 E., on left bank 300 ft 

downstream from intake, 350 ft downstream from Lyons Reservoir on South Fork Stanislaus River, 2 miles west of Long Barn, and 14 miles northeast of Sonora.

Records available.--October 1937 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,100 ft (from 

topographic map). Prior to June 1938, at site 200 ft downstream at different datum.

Average discharge. 20 years, 24.0 cfs (17,380 acre-ft per year).

Extremes. 1937-57: Maximum daily discharge, 55 cfs May 30, 1954; no flow at times.

Remarks. Records excellent. Canal diverts from left bank of South Fork Stanislaus River 

into Tuolumne River basin for power and domestic supply in vicinity of Sonora.

Cooperation. Water-stage-recorder graph and six discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

22

2T

19

19

19

19

19

19

19

19

*19

19

19

19

19

19

19

19

19

19

19

19

19

19

19

18

18

17

15

14

T4

576

18.6

1,140

Nov.

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

420

14.0

833

Dec.

14

14

14

14

16

19

19

19

19

14

9.5

£T3~ 9.3

9.3

9.5

9.5

9.3

*9.3

9.3

9.3

9.3

9.5

9.5

9.5

9.5

9.3

9.3

9.3

9.3

9.3

9 3

358.7

11.6

711

Jan.

9.1

577

9.3

9.3

9.3

9.3

9.3

15

19

15

9.3

9.3

16

13

-9.1

9.1

9.1

9.3

9.3

22

24

2T

24

24

24

24

24

24

24

24

24

493.4

15.9

979

Feb.

24

24

24

18

ii

14

14

14

15

15

14

14

*15

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

-

429

15.3

851

Mar.

14

T4

14

21

24

27

29

31

32

32

32

32

31

32

32

32

32

32

32

34

34

34

33

33

34

34

34

34

35

36

3T

936

30.2

1,860

Apr.

36

36

*36

35

35

35

35

35

35

35

35

35

35

36

36

36

35

35

35

35

35

35

31

31

35

35

35

36

35

35

1,049

35.0

2,080

May

35

35

35

36

58

36

35

35

36

35

35

35

35

*35

35

36

36

38

36

34

36

36

35

36

36

36

35

35

36

36

36

1,104

35.6

2,190

June

35

36

35

35

35

36

36

36

36

36

35

36

38

38

38

38

38

38

38

39

40

40

40

40

*40

40

48

49

53

BT

1,174

39.1

2,330

July

44

40

39

40

29

25

25

24

24

24

24

26

31

32

31

34

35

35

35

35

35

35

35

36

36

36

36

36

35

35

36

1,023

33.0

2,030

Aug.

36

35

35

35

35

35

35

35

35

35

35

35

35

39

40

40

40

40

39

40

40

40

40

40

40

40

40

40

40

38

36

1,168

37.7

2,320

Sept.

37

36

36

36

36

35

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

33

33

33

33

32

29

29

30

26

1,004

33.5

1,990

Calendar year 1956: Max 54 Min 9.3 Mean 30.3 Ac-ft 22,010

Water year 1956-57: Max 53 Min 9.1 Mean 26.7 Ac-ft 19,310

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 343

South Pork Stanislaus River near Long Barn, Calif.

Location. --Lat 38*05', long 120*11', in see. 25, T. 3 N., R. 16 E. , on left bank 600 ft 

downstream from Lyons Dam, 2 miles west of Long Barn, and 14 miles northeast of Sonora.

Drainage area. 67.2 sq mi.

Records available.--November- 1937 to September 1957.

Gage. Water-stage recorder and masonry control. Altitude of gage is 4,100 ft (from 

topographic map).

Average discharge . 19 years (1938-57), 87.9 cfs (63,640 acre-ft per year).

Extremes. Maximum discharge during year, 2,410 cfs June 4 (gage height', 7 27 ft) from 

rating curve extended above 1,100 cfs as explained below; minimum daily, 0.4 cfs

1937-57: Maximum discharge, 4,900 cfs Nov. 21, 1950 (gage height, 9.3 ft), from 

rating curve extended above 1,100 cfs on basis of computed flow over Lyons Dam: no 

flow at times in 1937-39, 1952.

Remarks. Records fair. Plow regulated by Lyons and Strawberry Reservoirs (combined 

usable capacity, 23,700 acre-ft). Tuolumne Canal (see preceding page) diverts at 

Lyons Dam; Philadelphia Canal (see p. 341 ) diverts 12 miles above station into Middle 

Pork Stanislaus River.

Cooperation. Water-stage-recorder graph and six discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Revisions (water yearg^. WSP 1215: 1938(M).

Rating table, water year 1956-57 (gage height, in feet, and 

discharge, in cubic feet per second)

.9 

1.0 

1.2 

1.5

2.0 

2.5 

3.0 

4.0 

5.0 

5.0

85 

150 

240 

48O 

880 

1,420

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

Zl

ZZ

23

Z4

Z5

Z6

Z7

Z8

29

30

31

Total

Mean

Ac-ft

Oct.

2.0

Z.3

2.3

2.0

z.o

z.o

z.o

3.1

2.7

2.0

*2.0

2.7

3.5

3.8

27f

z.o

2.0

2.0

Z.O 

Z.O

2.0

Z.O

2.0

1.7 2~7)

2.0

Z.O

2.0

2.7

1.7

1.7

68.9

2.22

137

Nov.

Z.O

7H5

2.0

Z.O

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.3 r^i

2.0

Z.O

2.0

2.0

Z.O

2.0 

Z.O

2.0

2.0

2.0

2.0

2.0

2.0

2.0

Z.O

2.0

2,0

60.3

2.01

120

Dec.

2.0

Z.O

2.0

1.7

T7T

1.7

2.0

-2.O

2.0

1.7

1.7

2.0

2.0

2.0

Z.O

2.3

273

*2.3

2.0 

2.0

2.0

2.0

2.0

2.0

Z.O

2.0

2.0

Z.O

z.o

2.0

Z.O

61.4

1.98

1Z2

Jan.

2.0

Z.O

2.0

2.0

2.0

Z.O

Z.O

2.0

2.0

2.0

2.0

2.0

5.5

T7T

z.o

2.0

2.0

2.0

2.0 

2.0

2.'o

2.0

Z.O

2.0

2.0

2.0

1.5 r^)

2.0

2.0

Z.O

63.7

2.05

126

Feb.

2.0 r^)

2.0

2.0

2.0

2.0

Z.O

Z.O

2.3

2.7

2.3

2.3

*2.3

2.3

2.3

2.3

2.7

2.0

2.0 

2.0

Z.O

2.0

Z.O

2.0

2.0

2.0

2.0

2.0

_

59.5

2.12

118

Mar.

2.0

T3

2.0

2.0

2.0

2.0

Z.O

2.0

2.3

2.3

2.0

1.5

rrr

2.3

2.7

2.7

11

19

20 

T5

11

7.5

6.6

5.4

2.7

2.7

2.0

2.0

2.0

2.0

2.0

144.4

4.66

286

Apr.

2.7

3.1

2.7

2.7

2.O

2.0

Z.O

2.3

2.0

2.0

2.0

2.0

Z.O

2.0

2.0

2.0

Z.3

2.7

2.O 

2.0

2.3

2.3

7.0

7.4

T7)

2.7

3.1

3.1

4.2

3.1

81.7

2.72

162

May

2.0

T35

2.0

4.1

86

138

152

152

161

180

156

118

86

*34

14

14

46

47O

1.120 

395

277

273

220

210

260

442

712

664

600

473

648

8,111.1

262

16.O9O

June

732

764

661

690

8O3

*953 4E2-

552

514

420

244

309

370

343

260

180

23O

244

294 

277

240

212

197

212

*181

152

131

67

75

43

10,812

360

21,450

July

34

T?

4.6

2.0

2.3

.4

.4

1.0

1.7

2.7

2.3

2.0

*2.7

3.5

2.0

1.5

1.5

2.0

2.0 

2.0

2.0'

2.3

2.0

1.7

2.0

2.0

2.0

2.3

2.3

2.0

2.0

105.2

3.39

209

Aug.

2.0

TX

2.0

2.3

2.3

2.7

277

2.3

2.0

2.0

2.0

2.0

2.O

2.0

2.0

2.0

2.0

2.0

2.0 

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

63.9

2.06

127

Sept.

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.O

2.0

2.3

2.3

2.7

K3

2.3 

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.7

T3

61.9

2.06

123

Calendar year 1956: Max 1,170 Min 1.5 Mean 150 Ac-ft 109,200

Water year 1956-57: Max 1,120 Min 0.4 Mean 54.0 Ac-ft 39,070

Discharge measurement made on this day.
344 SAN JOAQUIN RIVER BASIN

Melones Reservoir at Melones Dam, Calif.

Location. Lat 37°57'15", long 120°30'45", near center of sec. 11, T. 1 N., R. 13 E., at 

gate tower near left bank at Melones Dam on Stanislaus River, 0.1 mile downstream 

from Bear Creek.

Drainage area. 897 sq mi.

Records available. June 1927 to September 1957.

Gage. Staff gage read once daily. Datum of gage is at mean sea level (levels by Pacific 

Gas & Electric Co.).

Extremes. Maximum contents observed during year, 115,200 acre-ft June 5 (elevation, 

736.4 ft); minimum observed, 7,910 acre-ft Oct. 12 (elevation, 632.6 ft).

1927-57: Maximum contents observed, 115,800 acre-ft May 27, 1951 (elevation, 

736.7 ft); minimum observed, 3,740 acre-ft Sept. 16, 1951 (elevation, 616.3 ft).

Remarks. Reservoir is formed by concrete overflow dam; storage began Aug. 21, 1926; dam 

completed in December 1926. Capacity for power development 1 mile below dam is 

106,100 acre-ft between elevations 628.0 (minimum operating level) and 735.0 ft (top 

of drum-type spillway gates) above mean sea level; usable capacity for irrigation, 

110,000 acre-ft between elevations 610.0 (floor of outlet tunnel) and 735.0 ft above 

mean sea level. Figures given herein represent total contents at 8 a. m., of which 

2,630 acre-ft are not available for release. Released water flows down Stanislaus 

River at Goodwin Dam, where it is diverted into Oakdale and South San Joaquin Canals 

for irrigation.

Cooperation. Records of contents furnished by Pacific Gas & Electric Co. in connection 

with a Federal Power Commission project.

Capacity table, water year 1956-57 (elevation, In feet, 

and total contents, In acre-feet)

632

635

640

645

650

655

660

665

670

675

7,710

8,750

10,700

12,900

15,400

18,300

21,500

25,000

28,900

33,100

680

685

690

695

700

710

720

730

736.4

37,600

42,400

47,600

53,300

59,100

72,200

86,900

103,500

115,200

Total contents, in thousands of acre-feet, at 8 a.m., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

14.3

13T5

12.8

12.1

11.6

10.9

10.2

9.53

8.82

8.32

8.02

7.91

8.89

10.1

11.2

10.8

10.8

10.9

11.0

10.3

10.5

9.99

9.99

9.87

10.5

10.6

10.5

10.3

10.8

11.6

12.8

644.7

-2,400

Nov.

14.2

15.4

16.0

16.2

16.4

16.2

15.9

15.6

15.6

15.1

14.9

14.7

14.8

14.5

14.2

13.8

13.3

12.9

12.4

12.0

11.6

11.0

10.8

9.99

9.95

10.3

10.8

10.9

10.8

10.8

640.2

-2,000

Dec.

10.8

10.7

10.6

10.6

10.8

11.2

11.1

11.0

11.0

11.0

11.1

11.2

11.0

10:7

10.6

10.8

10.6

10.6

10.6

10.6

11.4

10.5

10"78

11.1

11.0

11.7

11.8

11.9

TITS

11.0

11.0

640.7

+200

Jan.

11.0

10.9

10.9

10.9

11.0

11.0

11.1

11.1

11.1

11.1

11.1

10.9

11.1

12.0

12.5

12.3

11.8

11.8

11.0

11.4

12.1

11.8

11.4

10.9

11.7

10.9

11.2

11.3

10.9

10.8

1(579

640.6

-100

Feb.

11.5

TTTff

12.2

12.4

12.2

12.1

12.2

12.1

12.5

12.9

13.3

13.7

14.6

15.6

16.7

17.6

18.5

19.6

20.5

21.3

22.6

24.3

25.8

30.0

36.4

42.7

46.9

50.2

692.3

+39,300

Mar.

54.4

5479

57.5

60.0

61.8

68.3

72.6

75.4

77.7

80.1

81.8

83.5

85.3

86.3

87.2

88.0

89.4

90.4

91.2

91.8

92.3

93.5

93.8

94.0

94.1

94.3

 93.5

92.7

92.0

92 3

92 !o

723.2

+41,800

Apr.

91.7

90.9

89.9

89.0

88.2

88.0

88.0

87.7

87.2

86.9

86.9

87.2

87.1

87.1

89.6

91.4

92.7

93.5

94.3

94.6

95.0

95.2

95.5

95.5

95.0

94.6

94.5

94.6

95.5

96.2

725.7

+4,200

May

97.0

98.0

99.6

99.9

100.7

101.9

104.0

104.2

104.2

103.6

104.0

104.0

104.0

103.3

103.0

102.4

102.1

102.3

114.8

11377

110.8

112.2

114.1

114.3

113.9

113.9

114.3

114.5

114.6

114.3

114.3

735.9

+18,100

June

114.5

114.8

113.9

114.5

115.2

114.3

114.3

114.1

 113.7

114.3

113.7

113.0

113.0

114.5

114.5

114.1

113.7

113.2

112.4

 113 .T

114.1

113.4

113.2

113.5

113.7

113.5

113.4

113.2

113.9

113.5

735.5

-800

July

_

-

-

108.9

107.6

106.4

104.6

103.0

101.2

99.6

97.7

96.0

94.1

92.5

90.7

88.8

86.9

85.1

83.3

81.5

79.9

78.0

76.2

74.5

72.9

71.5

70.0

68.5

67.0

65.4

63.7

703.7

-49,800

Aug.

62.2

6576

58.7

57.4

55.8

54.5

53.0

51.4

49.7

48.1

46.8

45.4

44.1

42.8

41.4

40.8

38.5

37.0

35.8

34.5

33.3

31.9

30.6

29.2

27.8

26.4

25.1

23.9

22.6

21.4

20.3

658.2

-43,400

Sept.

20.0

19.8

19.6

19.4

19.1

18.8

18.6

18.3

18.1

17.9

17.6

17.3

16.8

16.2

15.7

15.2

14.6

14.0

13.4

12.7

12.0

11.4

10.5

10.5

10.7

11.0

10.8

10.5

10.4

IS75

639.4

-9,800

Calendar year 1956.................... * -84,000

Water year 1956-57.................... * -4,700

t Elevation, In feet, at end of month. 

* Change in contents, In acre-feet.
SAN JOAQUIN RIVER BASIN 345

Stanislaus River below Melones Powerhouse, Calif.

Location. La t 37°56'50", long 120°31'45", near line between sees. 10 and 15, T. 1 N., 

R. 13 E., on right bank 300 ft downstream from powerhouse,0.5 mile upstream from Bear 

Gulch, and 1 mile downstream from Melones Dam.

Drainage area.--898 sq mi.

Records available. January 1931 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 500 ft (from topographic map).

Average discharge.--26 years, 1,535 cfs (1,111,000 acre-ft per year).

Extremes.--Maximum discharge during year, 7,690 cfs June 5 (gage height, 11.66 ft); minimum daily, 2 cfs Oct. 13, 14, 30, 31.

1931-56: Maximum discharge, 62,800 cfs Dec. 23, 1955 (gage height, 29.0 ft, from 

floodmarks), from rating curve extended above 14,000 cfs on basis of computed flow 

over Melones Dam; minimum daily, 0.4 cfs Jan. 19, 20, 1943.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Plow regulated by Melones powerhouse, Melones Reservoir (see preceding page), and several smaller reservoirs above station. Several diversions above station.

Cooperation. Water-stage-recorder graph and 11 discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Revisions (water years).--WSP 843: 1936(M). Revised figures of discharge, in cubic feet 

per second, for the water year 1956, superseding those published in WSP 1445, are 

given herewith:

1956 

June 16................. 3,200

17..................3.200

30................. 2,990

Month

Water year 1955-56 ..........

C fa-days

921.802

Maximum

45.000

Minimum

15

Mean

2.519

Runoff In 

acre -feet

1.828.000

Rating tables, water year 1956-57 (gage height, In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used Nov. 12-23)

Nov. 1 to Sept. 30

6.0 

6.5 

7.0 

7.5

265

465

700

970

3.7 

4.0

172

260

4.5 

5.0 

6.0 

7.0 

9.0 

11.0

440

685

1,330

2,100

4,100

6,700

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19 

20

21

22

23

24

25

26

27

28 

29

30 

31

Total

Mean

Ac-ft

Oct.

720 

710

715

710

700

695

685

675

615

555

481

276

2

2

520

570

510

500 

510 

460

450

450

450

460

460

460

460

460 

280

2 

2

14,545

469

28,850

Nov.

25

160

512

790

476

467

490

490

476

462

467

245

*444

444

444

467

467

467 

462 

462

462

472

472

334

212

20

94

308 

297

294

11,382

379

22,580

Dec.

294 

284

257

233

236

377

358

269

263

263

269

428

503

TST

260

272

290

263 

233 *142

292

164

18

174

195

236

255 

208

188 

198

8,031

259

15,930

Jan.

202 

208

195

179

193

191

226

200

216

*245

232

182

327

303

442

448

471

303 

16 

15

489

T52

367

23

386

34

122

358 

227

228 

119

7,599

245

15,070

Feb.

140 

210

211

383

456

273

*451

275

257

259

259

271

*253

259

258

279

274

268 

273 

66

25

24

35

14

67

29

29

36

.......

5,661

202

11,230

Mar.

513 

36

44

898

751

582

540

575

576

553

 572

603

583

592

593

579

584

567 

552 

568

48

592

592

558

593

774

1,290

1,290 

1,290

1,430 

1.680

20,998

677

41,650

Apr.

1,680 

1,670

1,660

*1.740

1,670

1,670

1,670

1,670

1,660

1,660

1,660

1,660

1,660

1,140

925

932

938

964 

918 

800

724

724

818

1,170

1,350

1,350

1,360

1,360 

1,490

1,580

40,273

1,342

79,880

May

1,670 

1,680

1,680

1,680

1,690

1,690

2,340

2,570

2,440

1,900

1,710

1,710

1,740

1,720

1,720

 1,720

1,730

1,950 

6.250 

5J470

3,840

1,990

2,830

2,670

2,480

2,600

2,990

3,350 

3,250

2 900 

2J900

76,860

2,479

152,400

June

3,260 

3,940

3,500

3,700

6.410

5,390

4,680

4,440

3,860

3,370

2,370

2,410

2,430

2,650

2,570

2,190

2,130

1.820 

1,860 

2,150

2,430

1,910

1,880

2,160

2,080

1,970

1,850

1,840 

2,270

1,910

85,430

2,848

169,400

July

1,850 

1,760

1,730

1,690

1,680

1,680

1,680

1,670

1,670

1,650

1,580

1,620

1,700

1,700

*1,700

1,700

1,690

1,680 

1,680 

1,670

1,660

1,610

1,510

1,500

1,500

1,500

,500

,480 

' ,480

Uso

50,460

1,628

100,100

Aug.

1,480 

1,570

1,380

1,470

1,460

1,450

1,450

1,440

1,440

1,440

1,430

1,420

1,420

1,420

1,410

1,400

1,390

1,590 

1,580 

1,380

1,370

1,360

*1,350

1,340

1,340

1,320

1,320

1,310 

1,300

1,290 

866

42,786

1,380

84,860

Sept.

788 

782

806

812

800

800

800

812

812

824

818

830

906

925

925

938

944

951 

951 

951

964

95?

674

590

560

674

685

641 

590

575

24,086

803

47,770

Calendar year 1956: Max 12,400 Mln 2 Mean 2,239 Ac-ft 1,625,000

Water year 1956-57 : Max 6,410 Mln 2 Mean 1,063 Ac-ft 769,700

* Discharge measurement made on this day.

Note. No gage-height record Oct. 13-31, June 17 to July 1; discharge estimated on basis of records of powerhouse and dam operations, and unpublished records for station above Melones powerhouse.
346 SAN JOAQUIN RIVER BASIN

South San Joaquin Canal near Knights Ferry, Calif.

Location. Lat 37°51'20", long 120°38'15", in sec. 15, T. 1 S., R. 12 E., on left bank 

0.8 mile downstream from headgate at Goodwin Dam and 4 miles upstream from Knights 

Ferry.

Records available. May 1914 to September 1957.

Gage. Water-stage recorder and concrete control. Datum of gage is 334.18 ft above mean 

sea level (levels by Oakdale Irrigation District). Prior to Mar. 12, 1915, staff gage 

at site 100 ft downstream. Mar. 12, 1915, to July 1, 1921, staff gage at present site 

and datum.

Average discharge. 38 years (1914-30, 1931-32, 1936-57), 392 cfs (283,800 acre-ft per 

year).

Extremes. 1914-57; Maximum daily discharge, 1,220 cfs June 28 to July 3, 1953; no flow 

at times each year except 1951.

Remarks. Records excellent. Canal diverts from right bank of Stanislaus River at Goodwin 

Dam for irrigation in Oakdale and South San Joaquin Irrigation Districts.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

468 

453

454

*451 

450

447

440

433

409

376

339

242

28 

5.8

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4,995.9

161

9,910

Nov.

(*)

0

0

0

Dec.

0 

0

0

0 

0

0

.1

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

Jan.

0 

0

0

0 

0

0

0

0

0

0

0

.1.1

.3

0

0

0

8.3

31

.1

151

359" 409

176

145

191

46

*193

251

197

180

2,377.9

76.7

4,720

Feb.

120

144

190

287 

358

270

335

311

248

226

222

213

222 

226

226

227

229

236

197

226

71

29

173

212

225

113

71

25

-

5,612

200

11,130

Mar.

12 

261

75

139 

441

559

537

528

538

335

138

62

.2 

.3

.3

.3

.2

.2

.1

0

0

0

0

0

0

*.4

313

664

790

796

994

7,184.0

232

14,250

Apr.

1,030 

1,090

1,100

*1.120

1,120

1,100

1,090

1,090

1,090

1,080

1,080

1,090

1,090 

943

845

833

845

818

763

714

671

679

824

905

843

803

807

»870

985

27,992

933

55,520

Calendar year 1956: Max 1,180 Mln 0 Mean 483

May

1,100 

1,150

1,150

1.160 

1,160

1,160

1,130

1,140

1,150

1,150

1,130

903

817 

811

881

947

945

731

563

566

563

549

544

555

605

684

782

846

944

945

952

27,713

894

54,970

June

958 

964

1,030

1,060 

*1,070

1,130

1,150

1,160

1,160

1,160

1,160

1,150

1,170 

1,170

*1,160

1,160

1,160

1,160

1,160

944

1,0~9"0~ 899

1,160

1,160

1,160

1,170

1,170

1,170

1,170

1,160

33,545

1,118

66,540

July

1.170 

1,170"

1,160

1,150 

1,130

1,120

1,110

1,110

1,110

1,100

1,060

1,060

1,120 

1,140

1,150

1,150

1,140

1,130

1,130

1,130

1,120

1,110

1,020

994

986

985

983

980

978

975

972

33,643

1,085

66,730

Aug.

971 

*975

983

555 

948

947

944

943

940

934

931

929

927 

923

901

910

910

906

902

*899

894

888

885

875

871

863

857

849

845

832

602

27,934

901

55,410

Sept.

510 

507

503

510 

514

514

513

513

514

521

527

532

572 

595

597

601

605

611

611

608

609

590" 612

429

390

429

444

426

399

377

15,683

523

31,110

Ac-ft 350,300

Water year 1956-57: Max 1,170 Mln 0 Mean 511 Ac-ft 370^300

Discharge measurement or observation of no flow made on this day.
SAN JOAQUIN RIVER BASIN 347

Oakdale Canal near Knights Perry, Calif.

Location. Lat 37°51'30", long 120°38'00", in SE^- sec. 10, T. 1 S., R. 12 E., on left

bank 1,835 ft downstream from headgate at Goodwin Dam and 4 miles upstream from Knights 

Perry.

Records available . May 1914 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 350 ft (from topographic map). Prior 

to Apr. 29, 1916, staff gage at site 1,000 ft upstream at different datum. Apr. 29 

to July 3, 1916, staff gage and July 4, 1916, to Apr. 3, 1949, water-stage recorder, 

at present site at datum 0.18 ft higher.

Average discharge.--39 years (1914-32, 1936-57), 134 cfs (97,010 acre-ft per year).

Extremes. 1914-57: Maximum daily discharge, 533 cfs June 21, 23, 24, 26, 28, 29, July 2, 

1957; no flow for periods each year.

Remarks. Records excellent. Canal diverts water from left bank of Stanislaus River at 

Goodwin Dam for irrigation in Oakdale Irrigation District.

Discharge, 'In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

207

213

213

*211

211

210

211

214

203

188

158

106

2.0

.2

72

4.2

.2

2.0

19

20

11

10

12

13

16

21

20

21

14

.5 

.3

2,533.6

81.7

5,030

Nov.

0

0

.3

7.6

13

.S

3.7

6.3

4.5

13

14

6.2

0

.8

*.2

1.0

.8

1.0

1.7

1.4

0

0

0

0

0

0

0

0

0

0

76.3

2.54

151

Dec.

0

5

0

.1

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

.2

.2

.2

.2

.3

.3

.4 

74

2.8

0.09

5.6

Calendar year 1956: Max 523

Jan.

0.4

.4

.5

.5

.5

.5

.5

.5

.7

.7

.8

.8

.4

0"0

0

0

.2

.2

.5

2.6

~6.3

1.0

0

0

0

0

0

0 

2.4

20.9

0.67

41

Feb.

00"

0

3.0

274

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

.2

.1 1.1

.5

.4

.2

.1

.4

8.4

0.30

17

Mar.

0.7

.3

.3

1.1

2.5

.7

.4

.3

2.0

.2

.2

.4

.3

.3

.4

.4

.4

.3

.2

.2

.2

.3

.1 59 

208

284

402

405

405

416 

495

2,686.2

86.7

5,330

Apr.

499

499

498

*499

498

493

494

494

493

492

496

498

501

190

6.5

56

58

25

.5

.5

tt

15

211

390

451

501

502

508

512

9,881.3

329

19,600

May

509

486

496

500

502

511

510

519

521

519

519

521

521

522

523

523

524

3TS

100

38

.7

375

32

140

279

424

513

519

520

519 

519

12,653.0

408

25,100

June

526

528

233

20 .5

181

425

527

526

529

530

530

531

531

*532

532

531

531

518

530

533

53?

533

533

532

533

532

533

533

530

14,115.5

471

28,000

July

532

~5Z5 533

510

501

500

502

500

500

497

455

458

493

498

500

500

498

495

493

493

491

483

448

449

450

450

449

448

447

446 44"6~

14,993

484

29,740

Aug.

445

*444

443

444

443

442

441

438

435

434

432

430

427

424

418

421

420

419

416

414

410

410

408

407

406

406

405

405

405

404 

284

12,980

419

25,750

Sept.

249

247

246

252

255

253

253

253

255

253

251

252

273

283

284

285

288

296

298

298

300 350"

287

201

188

201

229

222

202

187

7,641

255

15,160

MIn 0 Mean 234 Ac-ft 169.600

Water year 1956-57: Max 533 MIn O Mean 213 Ac-ft 153J900

* Discharge measurement or observation of no flow made on this day.
348 SAN JOAQUIN RIVER BASIN

Stanislaus River below Goodwin Dam, near Knights Perry, Calif.

Location. La t 37°51'00", long 120°38'15", in Nf sec. 15, T. IS., R. 12 E. , on right 

bank 0.1 mile downstream from Owl Creek, 1.0 mile downstream from Goodwin Dam, and 

3 miles northeast of Knights Perry.

Drainage area. 980 sq mi.

Records available . February to September 1957. Records equivalent to those published 

as Stanislaus River at Knights Perry, 1903-14, and as Stanislaus River near Knights 

Perry, 1915-32, if adjusted for diversions in Stanislaus and San Joaquin Water 

Company's canal, and Oakdale and South San Joaquin canals.

Gage. Water-stage recorder. Datum of gage is 252.83 ft above mean sea level (levels 

b~y Oakdale and South San Joaquin Irrigation Districts).

Extremes. Maximum discharge during year, 5,140 cfs May 20 (gage height, 13.38 ft); minimum daily, February to September, 0.5 cfs Sept. 26, 27, 30.

Flood of Dec. 23, 1955, reached a peak of 62,900 cfs (gage height unknown) by 

computation of flow over Goodwin Dam.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Flow regulated by reservoirs and powerplants at Donells, Lake Hartley, Melones, 

Tullock, and several smaller reservoirs above station. South San Joaquin Canal (see 

p. 346 ) and Oakdale Canal (see p. 347 ) divert at Goodwin Dam 1.0 mile upstream.

Rating table, Feb. 1 to Sept. 3O, 1957 (gage height, in 

feet, and discharge, in cubic feet per second)

6.2

6.3

6.4

6.5

6.6

0.4 

1.1 

2.1 

3.3 

6.5

6.7

6.8 

7.0 

7.2 

7.5

65

125

8.0

9.0

10.0

12.0

14.0

315

810

1,480

3,420

5,950

Discharge, in cubic feet per second, February to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct. Nov. Dec.

Calendar year : Max

Jan.

(*)

Feb.

2.7

2.7

2.8

2.9

3.2

3.2

2.9

3.1

2.7

2.6

12

16

17

T7

16

16

16

15

15

15

13

11

13

15

14

13

12

8.8

-

283.6

10.1

563

Min

Mar.

38

199

2.7

535

1,150

283

123

94

96

216

460

565

821

638

610

644

614

591

596

594

492

190

567

515

378

272

417

158

19

19

44

11>920 . 7

385

23,640

Apr.

53

23

17

 12

8.8

7.4

5.2

7.8

8.3

7.8

7.8

7.0

7.D

90

32

20

6.2

125

67

107

27

26

23

67

12

12

12

12

17

52

879.3

29.3

1,740

May

16

23

17

16

13

9.2

307 

852

798

390

45

223

320

356

*250

180

183

631

3,420

5,070

»4,460

2,640

»2,010

1,930

1,510

1,250

1,320

al,51O

al,510

al,390

1,250

33,899.2

1,094

67,240

June

1,400

al,720

a2,010

a2,300

«a3£00

4,550

3,270

2,840

2,460

2,130

1,180

235

172

810

*1,130

900

570

171

4.6

398

852

437

68

261

351

234

103

72

570

250

34,938.6

1,165

69,300

July

50

T4

4.6

3.3

3.1

2.9

3.1

3.2

3.2

3.2

2.9

2.8

2.8

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.2

2.8

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

152.3

4.91

302

Aug.

2.6

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.3

2.3

2.3

2.3

2.3

2.3

2.2

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.0

2.0

1.8

69.2

2.23

137

Sept.

1.2

1 .0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9

.O

.0

.0

.0

.0

.0

1.0

1.0

1.0

1.0

.9

.6

.5

75

.6

.6

.5

26.9

0.90

53

Mean Ac-ft

Water year : Max Min Mean Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station at Ripon.
SAN JOAQUIN RIVER BASIN 349

Stanislaus River at Ripon, Calif.

Location. Lat 37°43'50", long 121°06'35", in SE£ sec. 29, T. 2 S., R. 8 E., on left bank 

15 ft downstream from railroad bridge, 1 mile southeast of Ripon, and 15 miles upstream 

from mouth.

Records available. October 1940 to September 1957 in reports of Geological Survey. April 

1940 to September 1957 in reports of California Department of Water Resources.

Gage. Water-stage recorder. Datum of gage is at mean sea level, unadjusted (levels by 

Modesto Irrigation District). Prior to Nov. 17, 1953, at site 100 ft upstream at same 

datum.

Average discharge. 17 years, 1,154 cfs (835,500 acre-ft per year).

Extremes. Maximum discharge during year, 4,810 cfs May 22 (gage height, 51.58 ft); minimum, 117 cfs Apr. 30.

1940-57: Maximum discharge, 62,500 cfs Dec. 24, 1955 (gage height, 63.25 ft); minimum, 94 cfs Aug. 10, 1955.

Flood of Feb. 12, 1938, reached a stage of 64.4 ft, from floodmarks. Flood of 

Apr. 1, 1940, reached a stage of 61.1 ft, from floodmarks.

Remarks. Records good. Flow regulated by reservoirs and powerplants above station (see 

Remarks for station below Melones powerhouse). South San Joaquin Canal (see p. 346) 

and Oakdale Canal (see p. 347) divert at Goodwin Dam 34 miles upstream. Diversions 

for irrigation of about 2,300 acres below Goodwin Dam and above Ripon.

Rating tables, water year 1956-57 (gage height. In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Dec. 28-31, July 24 to Sept. 30)

Oct. 1 to Dec. 31

38.0 154

39.0 342

40.0 554

41.0 788

Jan. 1 to Sept. 30

37.4

38.0

39.0

41.0

127

209

372

840

44.0 1,700

47.0 2,690

51.1 4,520

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

190

190

208

199

213

239

195 

213

194

*204

213

210

230

244

233

246

569

642

646

SCO

609

594

576

572

567

565

565

569

569

556

388

12,008

387

23,820

Nov.

260

Y30" 219

244

466

501

519 

530

547

550

545

541

512

437

525

534

543

561

561

*554

550

554

558

563

FIT

422

350

270

231

286

13,704

457

27,180

Dec.

346

354

356

356

344

342

346

446

388

*358

350

348

370

492

510

424

362

364

360

340

318

286

372

294

244

228

537

266

310

330

312

10,749

347

21,320

Jan.

304

304

304

304

291

286

286 

291

307

*302

308

316

332

336

380

406

478

505

487

392

308

242

205

185

175

175

168

164

159

153

150

9,003

290

17,860

Feb.

148

148

145

144

143

140

140 

140

137

135

135

134

*132

137

139

139

135

139

136

131

143

141

144

152

181

171

159

145

-

4,013

143

7,960

Calendar year 1956: Max 11,800 Mln 154

Mar.

156

194

281

195

394

1.210

607 

*380

281

248

250

438

578

801

705

691

708

691

672

662

662

609

367

571

600

523

509

478

410

318

251

15,440

498

30,620

Apr.

230

221

221

182

189

168

167 

167

164

*150

136

143

149

178

252

214

194

257

230

267

248

216

178

161

163

174

163

149

140

127

5,598

187

11,100

May

141

161

180

189

167

161

140 

T55

705

*814

597

343

304

400

489

465

372

392

1,100

3,240

*4.500

4,390

*2,800

2,300

2,210

1,840

1,650

1,590

1,780

1,790

1,650

37,045

1,195

73,480

June

1,470

1,610

1,900

2,240

2,280

3,200

4.020 

3,230

2,850

2,580

*2,240

1,480

861

609

1,070

1,320

1,140

861

590

412

467

941

757

422

388

547

440

347

283 549-

41,104

1,370

81,530

July

528

358

312

267

251

201

206

192

192

178

*159

153

156

170

181

206

173

160

153

160

170

171

156

168

156

152

153

148

148

141

T57J

6,069

196

12,040

Aug.

157

164

157

182

195

171

146 *T57

171

153

188

187

161

*167

163

160

163

188

160

164

157

159

146

157

173

171

161

173

168

178

195

5,192

167

10,300

Sept.

191

187

185

173

154

164

156 

173

*177

167

170

168

164

173

182

196

180

163

163

194

T§9~ 206

198

173

177

188

202

192

181

195

5,391

180

10, 690

Mean 1,819 Ac-ft 1,321,000

Water year 1956-57: Max 4,500 Mln 127 Mean 453 Ac-ft 327,900

* Discharge measurement made on thla day.
350 SAN JOAQUIN RIVER BASIN

San Joaquin River near Vernalis, Calif.

Location. Lat 37°40'34", long 121°15'5l", on left bank 30 ft upstream from Durham Ferry 

highway bridge, 3 miles downstream from Stanislaus River, and 3.4 miles northeast of 

Vernalis, San Joaquin County.

Drainage area. 14,010 sq mi, approximately.

Records available . July 1922 to September 1957 (1922-23 and 1925-29, low-water records 

only) .

Gage . Water-stage recorder. Datum of gage is 8.4 ft above datum of Corps of Engineers. 

July 1922 to September 1946, at various sites on or within 100 ft of Durham Ferry 

bridge. Prior to Apr. 1, 1931, at different datum.

Average discharge .--29 years (1923-24, 1929-57), 4,763 cfs (3,448,000 acre-ft per year).

Extremes. Maximum discharge during year, 9,370 cfs June 10 (gage height, 14.97 ft); minimum daily, 555 cfs Aug. 3.

1922-57: Maximum discharge recorded, about 79,000 cfs December 9, 1950 (gage 

height, 27.75 ft), including flow through breaks in levee; minimum, 184 cfs Aug. 14, 

1931.

Remarks. Records good except those for periods of doubtful or no gage-height record, 

which are fair. Discharge measurements generally made twice a month. Natural flow of 

stream affected by storage reservoirs, power developments, ground-water withdrawals 

and diversions for irrigation; low flows consist mainly of return flow from irrigated 

areas. Records of chemical analyses, water temperatures, and suspended sediment loads 

for the water year 1957 are given in WSP 1523.

Cooperation. Thirteen discharge measurements furnished by California Deaprtment of Water 

Resources . One discharge measurement furnished by Corps of Engineers .

Revisions (water years) . WSP 831: 1936. WSP 931: 1940.

Rating tables, water- year 1956-57 (gage height, In feet,

and discharge, in cubic feet per second)

(Shifting-control method used Oct. 1-13, Jan. 1-9,

July 23-25, Sept. 7-30)

Oct. 1 to Dec. 31

7.9

8.0 

8.8 

9.4

1,680

1,760

2,500

3,100 9.0

12.0

14.9

1 to Sept. 30

550 

660 

1,270 

2,770 

5,690 

9,270-

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4 

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-It

Oct.

2,010 

1,880

1,770

1,800 

1,900

1,960

2,060 

2,100

2,040

1,960

1,940

1,890

1,830

1,900

2,070

2,040

2,140

2.240

2,200

2,150

2,160

2,080

1,920

2,020

2,030

2,000

2,040

2,020

1,980

1,900 

1,930

61,960

1,999

122,900

Nov.

1,780 

1,720

1,710

m

1,900

1,920 

1,920

1,940

1,930

1,900

1,910

1,960

1,910

1,970

2,000

1,990

2,000

1,970

1,930

2,620

5,100

3,040

2,840

3,060

2,850

2,790

2,890

2,720

2,630

66,350

2,212

131,600

Dec.

2,730 

2,700

2,450

2,400 

2,820

2,880

2,830 

2,920

2,800

2,340

2,280

2,540

2,450

2,420

2,510

2,490

2,260

2,340

2,850

2,890

2,990

5.020

2,850

2,480

2,250

1,990

1,740

2,000

2,160

2,210 

2,070

77,660

2,505

154,000

Jan.

1,990 

2,010

1,850

1,990 

1,960

1,970

1,830 

1,840

1,910

1,920

2,010

1,970

2,160

2,040

1,860

1,990

2,080

2,110

2,110

2,120

1,970

1,770

1,820

1,890

1,810

1,810

1,840

1,770

1,660

1,740 

1,760

59,560

1,921

118,100

Feb.

,820 

,770

,750

,600 

,540

,630

,680 

,680

,660

,770

,750

,660

,120

,510

.680

,500

,110

,780

,650

,690

,510

,550

,550

,540

,420

,750

,660

,660

.......

49,570

1,763

97,920

Mar.

1,690 

1,720

1,940

2,230

2,150

5,540

4.690 

4,150

5,750

5,250

2,670

2,510

2,720

5,050

5,160

5,050

5,120

5,040

5,040

5,710

4,250

4,470

4,540

4,000

5,830

5,490

2,770

2,590

2,210

2,020 

1,950

94,680

3,054

187,800

Apr.

1,810 

1,610

1,300

1,060 

924

798

726 

744

702

654

654

644

649

714

1,040

1,100

1,010

1,540

1,610

1,750

2,070

2.250

2,130

1,970

1,940

2,000

1,960

1,860

1,510

1 , 280

59,789

1,326

78,920

May

,130 

,090

,080

,070 

,090

,070

,010 

918

,030

,37O

,460

,340

,350

,240

,350

,470

,490

,650

,960

,520

,590

,490

i, 150

,590

,250

,910

,590

,870

,750

5,520 

5,080

80,018

2,581

158,700

June

2,910 

5,590

4,520

5,140 

5,640

6,590

7,800 

8,450

8,690

9.260

8,570

5,790

5,780

2,8SO

2,750

5,060

5,110

2,690

2,210

1,850

1,590

1,770

1,960

1,690

1,420

1,500

1,240

1,150

1.070

1,140

112,780

5,759

225,700

July

,400 

,240

,160

,150 

,160

,090

,090 

,100

,050

954

876

804

744

756

964

780

708

720

690

638

744

888

888

762

684

652

657

696

768

744 

684

27,118

875

53,790

Aug.

605 

570

565" 555

672

690

666 

732

780

804

846

936

96?

726

660

666

649

786

924

858

798

822

738

732

762

822

810

750

810

846 

894

23,358

753

46,290

Sept.

1,010 

1,120

1,050

990 

956

918

92l 

1,020

1,060

942

966

990

1,050

1,010

1,050

1,190

1,160

1,190

1,220

1,260

1,550

1,570

1,410

1,280

1,240

1,240

1,280

1,550

1,410

1,490

54,456

1,149

68,540

Calendar year 1956; Max 34,000 Min 1,530 Mean 8,168 Ac-ft 5,930,000

Water year 1956-57: Max 9,260 Min 555 Mean 1,992 Ac-ft 1,442,000

no gage-height record Dec. 10-24, Aug. 2-4; discharge estimated on basis of 

;ht record at Maze Road bridge about 5 miles upstream, and records for

Note. Doubtful .. .. 

unpublished gage-heigh_ ____ 

Stanislaus River near Ripon.
SAN JOAQUIN RIVER BASIN 351 

San Domingo Creek near San Andreas, Calif.

Location.--Lat 38°06'55", long 120 0 37'00", in NE£ sec. 14, T. 3 N., R. 12 E., on right 

bank 2.5 miles upstream from mouth, 3.2 miles downstream from French Gulch, and 

6.5 miles southeast of San Andreas.

Drainage area. 27.1 sq mi.

Records available. January 1950 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 1,060 ft (from topographic map). Prior 

to Dec. 6, 1950, staff gage and crest-stage indicator at same site and datum.

Average discharge.--? years, 14.6 cfs (10,570 acre-ft per year).

Extremes. Maximum discharge during year, 247 cfs May 18 (gage height, 3.66 ft), from 

rating curve extended above 70 cfs as explained below; no flow for many days.

1950-57: Maximum discharge, 2,830 cfs Dec. 23, 1955 (gage height, 8.24 ft), from 

rating curve extended above 70 cfs on basis of slope-area determination of peak flow; 

no flow at times each year.

Remarks Records good. San Domingo Creek receives water above station at times from 

North Pork Stanislaus River by way of Utica Reservoir. Some diversions above station 

for irrigation.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

1.0

1.1 

1.4 

1.7 

2.0

2.2

8.7

22

40

2.5 

3.0 

3.5

79

136

215

Discharge , in cubic feet per second, water year October 1956 to September 1957

Day

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

.1

0

(5

.1

.3

.5

.6

.7

.8

1.1

1.1

1.1

1.0

.9

.9

.7

1.0

.9

1.3

1.3

1.3

1.8

2.0

*1.4

1.4

2.4

1.8

2.4

5.0 476

38.6

1.25

77

Nov.

3.0

2.4

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.2

1.3

57T

4.2

3.4

2.8

2.4

2.4

3.2

5.4

374

2.8

2.6

2.6

2.6

2.6

2.6

2.8

3.0

3.0

2.8

82.6

2.75

164

Dec.

3.6

4.0

4.2

3.4

7.4

6.2

4.4

3.6

3.8

4.2

4.0

4.2

4.0

4.2

4.2

3.8

4.0

4.2

3.6

4.0

3.4

3.8

3.8

3.2

TJS

4.0

6.0

6.2

4.6

3.2

3.4

130.4

4.21

259

Jan.

2.4

3.4

6.0

5.6

4.8

2.6

2.2 775-

3.4

3.0

3.0

3.0

17

TC

6.0

4.8

*4.2

3.4

3.6

14

11

6.4

5.4

5.0

5.0

7.4

6.2

5.0

3.8

3.2

2 . 8

166.4

5.37

330

Feb.

2.8

3.0

3.2

4.0

3.0

2.6

775

6.0

7.6

6.4

7.4

6.4

5.2

4.6

4.2

3.8

4.4

4.8

3.4

2.8

5.5

6.0

47

65

*4l

18

17

15

-

302.9

10.8

601

Mar.

22

20

16

29

159

72

34

22

35

26

18

22

20

15

16

23

18

15

13

11

8.7

8.1

7.1

6.8

6.4

6.4

575- 5.4

6.8

8.1

6.0

681.6

22.0

1,350

Apr.

6.4

*6.6

5.8

5.2

4.6

4.0

4.0

4.2

5.8

3.6

3.6

3.2

3.0

5.6

5.4

4.2

4.4

9.4

#74

6.4

5.8

5.4

5.0

4.4

4.4

4.0

4.0

3.2

2.8

2.4

145.2

4.84

288

Hay

1T~ 2.2

39

35

35

28

39

5.8

3.6

4.6

13

4.2

3.4

*3.8

13

4.4

3.0

46

97

43

41

29

21

15

12

9.4

7.8

20

39

6.8

5.2

647.2

20.9

1,280

June

4.4

T76

3.0

2.6

2.4

2.2

1.8

1.8

1.8

2.0

1.6

1.1

.9

.9

.9

.6

.4

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

34.1

1.14

68

July

0

(J

0

0

1.2

.4

.2

.1

.1

.1

.1

0

0

0

O

0

0

0

o

0

0

o

0

0

0

0

0

0

0

*o

0

2.2

O.O7

4.4

Aug.

(*)

0

0

 0

Sept.

(*)

0

0

0

Calendar year 1956: Max 242 Win 0 Mean 14.6 Ac-ft 1O,600

Water year 1956-57: Max 159 Min o Mean 6.11 Ac-ft 4,420

Peak discharge (base, 220 cfs).--Mar. 5 (11:30 a.m.) 235 cfs (3.60 ft); May 18 (9 p.m.) 247 cfs 

(3.66 ft)._______________________________ ____ ___

* Discharge measurement or observation of no flow made on this day.
352 SAN JOAQUIN RIVER BASIN

San Antonio Creek near San Andreas, Calif.

Location. Lat 38°07'50", long 120°38'10", in NE£ sec. 10, T. 3 N., R. 12 E., on right 

bank 800 ft downstream from highway bridge, 1.9 miles upstream from mouth, 5 miles 

downstream from Indian Creek, and 5 miles southeast of San Andreas.

Drainage area. 46.6 sq mi.

Records available. January 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 940 ft (from topographic map). Prior 

£b Dec. 28, 1950, staff gage and crest-stage indicator at same site and datum.

Average discharge. 7 years, 42.3 cfs (30,620 acre-ft per year).

Extremes. Maximum discharge during year, 677 cfs May 18 (gage height, 3.41 ft), from 

rating curve extended above 250 cfs as explained below; minimum daily, 0.1 cfs for 

many days in August and September.

1950-57: Maximum discharge, 2,500 cfs Dec. 23, 1955 (gage height, 5.66 ft), from 

rating curve extended above 250 cfs on basis of slope-area determination of peak flow; 

no flow at times in 1950, 1954-55.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Some diversion for mining and logging above station.

Revisions (water years). WSP 1395: 1952, drainage area. WSP 1445: 1952(P).

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

1.2

1.3

1.4

1.5

1.6

0.9 

2.Z

8.8

16

1.9 

2.2 

2.5 

2.8

49

101

190

325

1.0

1.1

1.2

1.3

1.4

1.5

0.1 

.3 

.9

2.2

4.6 

8.6

1.6 

1.9 

2.2 

2.5 

2.8

16

48

98

174

300

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.9

ITS

1.9

1.9

2.2

2.6

3.2

3.2

3.4

3.4

3.4

4.2

4.2

3.6

3.2

2.9

2.6

2.6

2.6

2.6

2.4

2.6

3.2

7.8

*6.2

4.8

8.3

8.8

6.6

7.4

18

133.6

4.31

265

Nov.

8.3

TU

6.2

6

5.5

5.5

5.5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

159.0

5.30

315

Dec.

5

5

5

5

6

6.5

7

 g 7.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5

5

5

5

5

5

5

5

5

5

5

5

5

167.5

5.40

332

Calendar year 1956: Max 594

Jan.

5

5

5

5

5

5

5

5

5

5

5

6

11

30

23

16

*12

10

8.8

25

24

15

13

12

11

14

13

10

9.3

9.3

9.3

333.7

10.8

662

Feb.

10

10

10

9.9

8.8

8.8

57S

22

22

15

16

22

18

18

16

14

13

12

11

10

16

22

139

195 *T7T

96

82

61

1,057.8

37.8

2,100

Min 1.2

Mar.

62

64

56

69

298

192

122

89

119

93

75

84

76

62

61

82

66

58

52

49

46

42

38

35

33

32

28

 25 27

35

29

2,202

71.0

4,370

Me;

Apr.

35

*28

24

22

20

19

17

17

16

16

16

T9" 14

21

26

18

19

43

3T

30

30

27

25

24

22

20

18

17

16

16

671

22.4

1,330

May

16

16

16

16

15

14

14

15

16

16

22

17

16

16

16

15

13

ITS

299

Tpf

159

119

96

78

64

54

43

41

37

33

29

1,605

51.8

3,180

June

24

2T

19

17

15

15

15

14

13

13

13

13

12

12

12

11

10

10

10

9.8

9.2

9.2

8.6

8.6

8.1

7.6

7:6

7.6

5.5

5.2

356.0

11.9

706

July

5.2

47?

4.9

4.6

4.3

4.0

4.6

4.0

3.8

3.2

3.2

3.0

3.0

3.0

3.0

3.2

3.0

2.8

2.2

2.0

2.2

2.2

2.0

2.0

2.0

1.6

1.4

.8

79

*1.0

.8

88.8

2.86

176

Aug.

0.5

.4

.6

.5

1.0

1.2

1.5

1.8

1.9

T75

1.1

.6

1.1

*.8

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.1

TT

.1

.1

.1

.1

17.9

0.58

36

Sept.

0.1

T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.4

.6

.3

.3

*.3

.3

.3

.3

.3

.7

1.6

7.4

0.25

15

an 51.2 Ac-ft 37,200

Water year 1956-57: Max 299 Min 0.1 Mean 18.6 Ac-ft 13,490

Peak discharge (base. 280 cfs). Feb. 24 (6 p.m.) 320 cfs (2.84 ft)j Mar. 5 (1:30 p.m.) 378 cfs

(2.95 ft); May IB (11:50 p.m.) 677 efs (5.41 ft). ____________________________________

* Discharge measurement made on this day.

Note. No gage-height record Nov. 4 to Jan. 17; discharge estimated on basis of recorded range in 

stage and records for Calaveritas Creek near San Andreas.
SAN JOAQUIN RIVER BASIN 353

South Fork Calaveras River near San Andreas, Calif.

Location.--Lat 38°08'40", long 120°39'50", in NW£ sec. 4, T. 3 N., R. 12 E., on right 

bank 0.1 mile downstream from San Antonio Creek, 1.6 miles south of the Calaveras 

Cement Plant, and 3.7 miles south of San Andreas.

Drainage area. 118 sq mi.

Records available.--April 1950 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 860 ft (from topographic map). Prior 

fo Feb. 13, 1952, staff gage at same site and datum.

Average discharge. 7 years, 86.0 cfs (62,260 acre-ft per year).

Extremes.--Maximum discharge during year, 1,580 cfs Mar. 5 (gage height, 4.09 ft); no 

flow Aug. 17 to Sept. 30.

1950-57: Maximum discharge, 17,600 cfs Dec. 23, 1955 (gage height, 10.29 ft), from 

rating curve extended above 3,400 ofs on basis of slope-ared determination of peak 

flow; no flow at times in 1950-51, 1954-55, 1957.

Remarks. Records good. Some small diversions, mainly for irrigation, above station. 

Revisions (water years).--WSP 1395: 1951(M).

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Dec. 5

0.6

.7

.8

.9

1.0

1.3

0.8

2.1

4.4

7.6

12

30

0.44

.5

.6

.7

.8

1.0

1.2

Dec. 6 to Sept. 30

0

.2

.8

2.0

4.0

10

19

1.4 33

1.7 68

2.0 130

2.5 320

3.0 600

3.5 960

4.0 1,470

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

1.9

1.7

177

1.9

2.3

2.7

3.1

3.3

3.3

3.6

5.6

4.4

4.7

3.8

3.6

3.3

3.1

2.9

3.1

3.1

2.9

2.9

3.8

*7.6

6.9

5.3

9.2

11

6.9

7,6 

26

151.2

4.88

300

Nov.

16

11

8.8

8.4

8.8

8.0

7.6

7.6

7.6

7.3

7.3

6.9

10

8.0

7.3

7.3

7.3

7.3

7.3

10

8.0

8.0

7.6

7.6

7.6

7.6

7.3

7.6

8.0

8.0

247.1

8.24

490

Dec.

7.6

7.6

8.4

8.8

22

*24

15

10

9.0

9.3

9.6

10

10

11

12

9.0

8.2

8.2

7.9

7.9

8.6

10

24

10

9.0

8.2

7.9

10

9.3

7.6 

7_._5

327.4

10.6

649

Jan.

6.7

ITT

7.9

9.0

9.0

8.2

7.0

7.6

8.6

7.6

6.7

7.3

58

43

22

16

14

12

11

55

*55

31

22

18

16

31

27

19

15

13 

12

582.3

18.8

1,150

Feb.

12

13

13

13

12

11

12

28

36

27

29

36

31

30

28

25

24

24

22

19

27

41

315

417

3lT

*139

120

96

1,914

68.4

3,800

Mar.

195

133

107

330

1,240

*469

228

152

233

164

117

136

122

98

96

136

102

90

79

71

64

58

54

52

48

46

42

39

43

49 

42

4,835

156

9,590

Apr.

46

*42

38

35

33

31

29

28

29

27

24

24

27

29

39

31

31

67

55

42

42

38

35

33

31

28

26

24

22

11

1,007

33.6

2,000

May

19

23

54

49

49

44

43

26

22

22

35

26

21

*22

27

27

18

1B7

489

253

249

171

127

98

81

68

55

57

78

49 

39

2,494

80.5

4,950

June

36

31

29

27

24

22

21

20

19

21

19

18

16

15

14

14

13

13

12

9.6

9.3

9.0

8.6

9.0

7.0

7.9

7.9

7.9

5.8

5^8

471.8

15.7

936

July

5.8

5.2

5.2

5.0

4.7

4.4

4.4

4.0

3.6

3.2

3.0

3.0

2.6

2.8

2.8

3.0

2.8

2.6

1.9

1.6

1.7

1.9

1.7

1.7

1.6

1.3

1.0

.8

.6

*.7 

^1

85.1

2.75

169

Aug.

0.4

.3

.2

.4

.4

.5

.7

.9

79

.8

.6

.4

.3

.5

.3

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

7.7

0.25

15

Sept.

(*>

0

0

0

Calendar year 1956: Max 1,710 Mln 0.9 Mean 89.4 Ac-ft 69,890

Water year 1956-57: Max 1,240 Mln 0 Mean 33.2 Ac-ft 24,050

Peak discharge (base, 450 cfs). Feb. 24 (6 p.m ) 674 cfs (3.12 ft); Mar. 5 (8 a.m.) 1,580 cts 

(4.09 ft); May 18 (12 p.m.) 978 cfs (5.52 ft).__________________

* Discharge measurement or observation of no flow made on this day.
354 SAN JOAQDIN RIVER BASIN

Calaveritas Creek near San Andreas , Calif.

Location. Lat 38°09'50", long 120°39'30", in SW£ sec. 28, T. 4 N. , R. 12 E. , on right 

bank 0.8 mile east of Calaveras Cement Plant, 1.0 mile upstream from mouth, and 

and 2.6 miles southeast of San Andreas.

Drainage area. 53 .-3 sq mi.

Records available.--April 1950 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 865 ft (from topographic map). Prior 

To Feb. 12, 1952, staff gage at same site and datum.

Average discharge.--? years, 37.5 cfs (27,150 acre-ft per year).

Extremes. Maximum discharge during year, 716 cfs Mar. 5 (gage height, 3.86 ft); no flow 

many days in August and September.

1950-57: Maximum discharge, 3,600 cfs Dec. 23, 1955 (gage height, 6.33 ft); no 

flow at times during 1950, 1954-55, 1957.

Remarks.--Records good.

Revisions (water years).--WSP 1395: 1951(M).

Hating table, water year 1956-57 (gage height, In feet, 

and discharge. In cubic feet per second)

0.4 

.5 

.55

.3

.5

.8

1.2

1.7

2.3

3.0

0.9

1.1

1.4

1.7

2 0

2.5

3.0

3.6

5.2

12

28

182

317

570

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

l«ff

1.7

1.7

1.7

1.8

1.8

1.9

2.1

1.9

2.1

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.3

2.3

2.3

2.2

2.6

*2 6

2.6

3.0

3.3

3.0

3.2

4 .6

4.1

74.2

2.39

147

Nov.

4.6

5.2

5.5

572

5.2

4.9

4.6

4.4

4.4

4.4

4.1

4.1

3^9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

126.8

4.23

252

Dec.

3.9

379

3.9

4.1

6.7

*5.8

7.4

7.4

6.7

6.4

5.8

5.8

5.2

5.2

5.2

5.2

5.2

5.2

5.5

5.5

5.5

5.2

5.2

4.9

4.9

4.6

4.6

4.4

4.4

4.6

4.4

162.7

5.25

323

Jan.

4.1

4.1

4.1

4.1

4.1

4.4

4.4

4.9

4.9

4.9

4.9

6.1

12

30

19

14

11

9.6

8.4

18

*28

22

16

13

12

13

12

11

10

8 . 8

8.4

331.2

10.7

657

Feb.

8.

7.

7.

8.

8.

7.

7.

8.8

13

15

14

15

15

14

12

12

11

10

9.2

8.4

10

10

119

168

*186

*69

63

43

880.5

31.4

1,750

Mar.

46

55

49

80

525

235

103

61

93

76

48

58

55

41

41

61

47

38

33

29

25

22

20

18

18

17

16

15

15

15

14

1,969

63.5

3,910

Apr.

14 *15

14

13

12

12

11

11

10

10

9.6

9.2

9.2

12

12

12

12

18

24

12

21

18

16

15

14

13

12

11

11

10

402.0

13.4

797

May

9.6

9.2

9.2

9.2

8.4

8.1

8.1

7.7

7.7

7.7

8.8

9.6

8.8 *9.2

9.2

8.8

8.4

16

198

135

133

79

50

37

29

24

21

18

16

15

14

932.7

30.1

1,850

June

12

TT

10

9.6

8.4

7.4

7.1

6.7

6.7

6.4

6.1

6.1

5.8

5.2

5.2

4.9

4.6

4.4

4.1

4.1

3.9

3.7

3.3

3.3

3.2

3.0

3.0

2.9

"277 2.7

167.5

5.58

332

July

2.6

2.4

2.3

2.2

2.1

.1

.1

.9

.8

.7

.7

.7

.7

.7

.6

.5

.5

.4

.4

.3

.2

.2

.2

1.1

1.0

.9

.8

.8

*.B

.1

_£_

47.0

1.52

93

Aug.

 

0.5

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.1

.1

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

4.6

0.15

9.1

Sept.

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

.1

.1

.1 *.l

.1

.2

.1

.2

.3

.3

1.7

0.06

3.4

Calendar year 1956: Max 1,080 Min 0.9 Mean 42.4 Ac-ft 30,750

Water year 1956-57: Max 525 Mln 0 Mean 14.0 Ac-ft 10,120

Peak discharge (base, 500 cfs). Mar. 5 (10 a.m.) 716 cfs (5.86 ft). 

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 355

Esperanza Creek near Mokelumne Hill, Calif.

Location. Lat 38°19'00", long 120°35'40", in NW£ sec. 6, T. 5 N., R. 13 E. , on right 

bank 600 ft upstream from mouth and 6 miles east of Mokelumne Hill.

Drainage area. 16.7 sq mi.

Records available. January 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,470 ft (from topographic map).

Average discharge. 6 years, 14.3 ofs (10,350 acre-ft per year).

Extremes.--Maximum discharge during year, 489 ofs May 18 (gage height, 3.16 ft in gage 

well, 3.4 ft at outside gage by relation curve); minimum, 0.6 cfs Sept. 9, 10.

1951-57; Maximum discharge, 3,060 cfs Dec. 23, 1955 (gage height, 6.78 ft in gage 

well, 7.7 ft at outside gage, from floodmarks), from rating curve extended above 

1,100 cfs on basis of slope-area determination at gage height 5.7 ft' in gage well, 

6.5 ft at outside gage; minimum, 0.1 cfs Aug. 24, 25, 1955.

Remarks. Records good. No storage or diversion above station.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 23 Feb. 23 to Sept. 30

0.6 

1.7 

3.3

5.9

13

1.2 25

1.6 64

2.0 121

2.5 215

0.4 

.5 

.6

1.0

1.3 

1.6 

2.0 

2.5 

3.0

34

66

121

215

365

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.0

iTo

1.0

1.1

1.1

1.1

1.2

1.3

1.3

1.2

1.4

1.3

1.2

1.2

1.2

1.2

1.3

1.3

1.3

1.3

1.3

1.3

2.6

2.1

1.8

2.0

3.5 

1 . 8

1.8

4.4

55.1

1.78

109

Nov.

2.8

573

2.0

1.8 17&-

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

* .8 

.0

2.0

2.0

56.3

1.88

112

Dec.

2.0

1.8

1.8

2.1

ii

8.5

4.5

3.5

2.9

2.9

2.9

2.8

2.8

2.6

2.6

2.4

2.4

2.4

2.4

2.4

2.4

2.3

2.1

2.1

2.1

2.3

2.1

2.1 

2,1

2.1

2.1

90.5

2.92

180

Jan.

2.1

2^1

2.1

2.1

2.3

2.3

2.6

2.6

2.4

2.4

2.6

27

11

5.9

4.2

3.5

3.3

3.1

35

22

12

8.2

6.8

6.2

7.8

6.5

5.9

5.3

4.7

4.7

210.8

6.80

418

Feb.

*4.5

5.6

5.6

4.7

4.2

4.0

4.2

24

13

8.2

15

11

7.8

6.8

5.9

5.0

4.5

4.2

4.0

3J5

6.5

8.8

131

149

112

42

34

21

-------

650.0

23.2

1,290

Mar.

22

22

19

39

237

90

*39

25

72

34

24

32

25

20

27

46

24

19

16

13

11

10

9.0

8.6

8.2

7.8

7.4

1T2

8.2

8.6

939.1

30.3

1,860

Apr.

11

7.8

6.8

6.4

6.1

5.8

5.5

5.2

5.2

4.6

4.6

4.6

10 4.3

7.1

5.5

7.9

20

18

11

9.8

8.6

7.8

7.1

6.1

5.8

5.2

4.6

4.6

221.9

7.40

440

May

4.3

4.9

5.2

4.0

3.8

3.6

3.6

3.8

5.7

5.8

6.1

4.6

4.3

5.5

*5.5

4.6

4.0

81

85

64

56

27

20

14

11

9.8

8.2

7.1

6.8

6.1

482.7

15.6

957

June

5.5

572

4.6

4.3

4.0

3.8

3.6

3.3

3.6

3.8

3.6

3.3

3.1

3.1

3.1

3.1

3.1

2.9

2.9

2.7

2.9

2.7

2.7

2.5

2.5

2.4

2.4

2.2

172

97.5

3.25

193

July^

2.4

272

2.0

2.0

1.9

1.9

2.0

1.9

1.9

1.9

1.8

1.8

1.6

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.6

1.6

1.6

174

*lU

1.4

55.5

1.79

110

Aug.

1.4

1.4

1.2

1.2

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

1.0

1.0

1.0

33.9

1.09

67

Sept.

1.0

1.0

.9

.8

.8

.8

.7

.7

.6

76

.7

.8

.9

.9

.9

.9

1.0

1.2

1.0

1.0

.9

.8

.7

.7

*.7

.7

.7

l!2

LJ,

25.8

0.86

51

Calendar year 1956: Max 350 Min 1.0 Mean 13.9 Ac-ft 10,070

Water year 1956-57: Max 237 Mln 0.6 Mean 8.00 Ac-ft 5,790

Peak discharge (base, 200 cfs). Feb. 23 (12 m.) 381 cfs (3.04 ft); Mar. 5 (4 a.m.) 401 cfs

(3.09 ft); May 18 (8:30 p.m.) 429 cfs (3.16 ft).

Discharge measurement made on this day.

510529 O - 59 - Z4
356 SAN JOAQUIN RIVER BASIN

Jesus Maria Creek near Mokelumne Hill, Calif.

Location. Lat 38°17'00", long 120°39'00", in SE£ sec. 16, T. 5 N., R. 12 E on right 

bank0.6 mile upstream from mouth, 1.0 mile downstream from Wet Gulch, and 3.2 miles 

southeast of Mokelumne Hill.

Drainage area.--34.7 sq mi.

Records available . January 1950 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 980 ft (from topographic map). Prior 

to Dec. 22, 1950, staff gage and crest-stage indicator at same site and datum.

Average discharge.--7 years, 25.5 cfs (18,460 acre-ft per year).

Extremes. Maximum discharge during year, 560 cfs Mar. 5 (gage height, 3.82 ft); minimum 

daily, 0.2 cfs Aug. 27-29, Sept. 9.

1950-57: Maximum discharge, 5,490 cfs Dec. 23, 1955 (gage height, 7 63 ft), from 

rating curve extended above 1,300 cfs on basis of slope-area determination at gage 

height 7.1 ft; no flow Sept. 7, 8, 1955.

Remarks. Records good. No storage or diversion above station. 

Revisions. WSP 1395: Drainage area.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.3

1.4

1.0 

2.8 

5.8

3.0 

3.5

130

230

410

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

2.3

2.1 273

2.3

2.8

3.1

3.1

3.7

4.0

3.7

4.3

4.3

4.0

4.0

3.7

3.7

3.7

3.7

3.7

3.7

3.4

3.4

5.8

7.0

5.8

6.4

9.4

6.7

5.8 

11

15

147.9

4.77

293

Nov.

6.1

4T6

4.0

3.7

377

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

4.0

4.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

4.3

*3.7

3.7

3.7 

3.7

122.1

4.07

242

Dec.

3.7

377

3.7

4.6

16

14

8.2

6.4

5.5

4.9

4.9

4.9

4.6

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.0

4.0

4.0

3.7

3.7

3.7

3.7

3.7 

3.7

3.7

157.4

5.08

312

Jan.

3.7

377

3.7

3.7

3.7

3.7

3.7

4.3

4.3

4.0

3.7

4.3

35

19

11

8.2

7.4

6.7

6.4

44

35

18

12

10

*9.4

11

11

9.8

8.6

Sfi'

326.2

10.5

647

Feb.

8.2

9.0

9.8

8.6

8.2

7.8

S72

28

21

15

20

18

14

12

11

9.8

9.4

8.6

8.2

8.2

12

17

179

187

161

56

51

30

-

936.0

33.4

1,860

Mar.

34

38

29

53

400

145

*62

41

91

52

35

46

39

30

31

58

35

28

23

20

18

17

16

15

14

13

13

12

14

14

13

1,449

46.7

2,870

Apr.

20

14

12

11

11

11

10

9.8

9.4

9.4

9.0

9.0

8.6

14

12

10

12

23

22

17

16

14

13

12

11

10

9.8

9.4

9.0

8 . 6

367.0

12.2

728

May

8.6

9.4

9.8

8.6

7.8

7.8

7.8

7.8

8.6

10

11

9.8

9.0

9.8

9.4

7.8

7.0

89

134 ~§4

86

42

28

21

17

15

13

12

11

11

9.8

732.8

23.6

1,450

June

9.0

778

7.4

6.7

6.4

5.8

5.8

5.8

6.1

6.7

6.1

5.8

5.5

5.5

5.5

5.2

5.2

4.9

4.6

4.0

3.7

3.4

3.4

3.4

3.1

2.8

2.1

2.1

1.9

T79

147.6

4.92

293

July

1.9

2.3

T7S

1.9

1.6

1.2

1.4

1.6

1.2

1.2

1.1

1.0

1.0

1.0

.9

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

*75- .5

.5

32.3

1.04

64

Aug.

0.5

.5

.4

.5

.5

.6

.6

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

72" .2

.2

.2

.3

.3

12.1

0.39

24

Sept.

0.3

.3

.3

.3

.3

.3

.3

.3

.2

.3

.3

.3

.4

.4

.4

.3

.4

.4

.4

.4

.4

.4

.3

.3

*.4

.3

.4

.4

.5

.7

10.7

0.36

21

Calendar year 1956 : Max 505 Min 1.4 Mean 26.0 Ac-ft 18,860

Water year 1956-57: Max 4OO Min 0.2 Mean 12.2 Ac-ft 8,800

Peak discharge (base, 400 cfs). Feb. 23 (12 m.) 491 cfs (3.68 ft); Mar. 5 (4:30 a.m.) 56O cfs 

(5.82 ft); May IB (10 p.m.) 414 efs (5.51 ft)._______________________________________

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 

North Fork Calaveras River near San Andreas, Calif.

357

Location. Lat 38°13'05", long 120°41'55", in NW£ sec. 7, T. 4 N., R. 12 E., on right 

bank 0.5 mile upstream from Chill Gulch and 1.8 miles northwest of San Andreas.

Drainage area. 85.7 sq mi.

Records available . March 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 750 ft (from topographic map). Prior 

To Feb. 14, 1952, staff gage at same site and datum.

Average discharge. 7 years, 53.9 cfs (39,020 acre-ft per year).

Extremes.--Maximum discharge during year, 1,490 cfs Mar. 5 (gage height, 5.41 ft), no 

flow July 31 to Aug. 7, Aug. 10 to Sept. 30.

1950-57: Maximum discharge, 6,200 cfs Dec. 23, 1955 (gage height, 12.52 ft), from 

rating curve extended above 3,900 cfs by logarithmic plotting; no flow at times most 

years.

Remarks. Records good. Small diversions above station for irrigation.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

.8

.9

1.0 Z.I

1.7 

2.0 

2.3

2.6 

3.0 

3.5 

4.0 

5.0

131

218

410

665

1,240

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

2 1

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.0

F7J

2.1

2.0

2.0

2.4

3.0

3.1

3.9

3.7

3.7

4.3

4.3

4.1

3.9

3.5

3.5

3.3

3.3

3.3

3.7

3.5

4.8

*11

8.2

7.8

16

12

8.8

9.6

3_7

185.8

5.99

369

Nov.

12" 17

9.6

8.5

7.8

.4

.4

.1

rl

.8

3 . '.18

.1

.1

.4

.4

.8

.4

.4

.4

.8

.8

.8

.8

.8

.8

.8

.8

.8

240.3

8.01

477

Dec.

T~^ 7.8

7.8

8.5

28

*38

23

16

14

12

12

12

11

11

11

10

11

10

10

11

11

12

11

11

11

11

11

10

10

10

9.6

389.5

12.6

773

Jan .

9.2

T^

9.2

10

10

11

11

12

12

11

10

10

49

64

30

21

16

14

13

60

*107 ~5?

36

28

23

29

27

22

20

19

17

771.6

24.9

1,530

Feb.

16

17

20

18

16

15

15

45

49

32

37

42

32

27

25

20

18

16

18

16

19

33

358

422

440

128

126

82

-

2,102

75.1

4,170

Mar.

*82

84

72

97

1.050

*446

161

103

213

131

92

102

94

74

68

128

88

69

59

51

44

39

36

32

31

30

28

^

30

32

28

3,623

117

7,190

Apr.

42

32

*27

24

23

21

20

18

18

17

16

16

16

27

30

22

21

49

56

4T

36

31

28

26

23

21

19

18

16

15

769

25.6

1,530

May

15

15

17

15

13

12

T?

13

14

20

18

18

16

19

*20

15

14

99

'207 405

206

109

77

58

46

38

32

28

26

24

21

1,639

52.9

3,250

June

19

T5

15

14

12

12

11

11

11

12

11

10

9.2

8.5

8.2

7.8

6.8

6.2

5.6

4.8

4.6

4.3

4.3

4.1

3.7

3.1

2.8

2.4

2.5

2.2.

247.1

8.24

490

July

2.0

2.1

2.3

TT

1.6

1.6

1.5

1.8

1.8

1.8

1.5

1.5

1.2

1.0

1.0

1.0

1.0

.8

.8

.8

.8

.8

.8

1.1

.8

.5

.5

.4

.2

.1

0

35.2

1.14

70

Aug.

00"

o

0

0

0

0

.1

TT

0

0

0

o

*o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.006

0.4

Sept.

(»)

0

0

0

Calendar year 1956: Max 1,100 Min 0.8 Mean 58.5 Ac-ft 42,460

Water year 1956-57: Max 1,05O Min o Mean 27.4 Ac-ft 19,840

Peak discharge (base. 600 cfs). Feb. 23 (3 p.m.) 1,150 cfs (4.85 ft); Mar. 5 (7:30 a.m.)

1,490 cfs (5.41 ft); May 18 (12 p.m.) 1,O80 cfs (4.74 ft).

* Discharge measurement or observation of no flow made on this day.
358 SAN JOAQUIN RIVER BASIN

Murray Creek near San Andreas, Calif.

Location. Lat 38°12'45", long 1CO°40'55", in SW£ sec. 8, T. 4 N., R. 12 E., on right 

bank 600 ft upstream from bridge on State Highway 49, 0.9 mile downstream from North 

Fork Murray Creek, 1.1 miles north of San Andreas, and 1.5 miles upstream from mouth.

Drainage area. 23.5 sq mi.

Records available. March 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 820 ft (from topographic map). Prior 

to Feb. 13, 1952, staff gage and Feb. 13, 1952, to May 25, 1955, water-stage recorder, 

at site 600 ft downstream at datum 7.23 ft lower.

Average discharge. 7 years, 10.5 cfs (7,600 acre-ft per year).

Extremes. Maximum discharge during year, 119 cfs Mar. 5 (gage height, 2.94 ft); no flow 

for several months.

1950-57: Maximum discharge, 1..700 cfs Dec. 23, 1955 (gage height, 6.62 ft), from 

rating curve extended above 820 cfs on basis of slope-area determination of peak flow; 

no flow at times during 1950, 1953-57.

Remarks. Records good. No storage above station.

Rating table, water 

and discharge

ear 1956-57 (gage height, in feet, 

in cubic feet per second)

1.60

1.65

1.70

1.75

.2

.5

1.4

1.85 

1.9

3.0 

5.1 

7.9

2.0 

2.4 

2.8

Discharge, in cubic feet per second, water year October 1956 to September 1957

Say

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

2 1

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

0.2

.1

.1

.2

.4

.4

.4

.4

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.8

*1.2

1.0

1.2

3.4

1.4

1.2

3.4

5.6

27.1

0.87

54

Nov.

2.2

T76

1.4

1.4

1.4

1.4

1.4

1.4 

1.4

1.4

1.6

1.6

1.6

1.8

2.2

2.2

1.8

1.8

1.8

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.8

1.8

1 . 8

49.6

1.65

98

Dec.

1.8

1.8

1.8

2.6

7.5

*5.6

3.4

3.4

3.0

2.6

2.6

2.6

2.6

2.2

2.2

2.2

2.2

2.2

2.2

1.8

1.8

1.8

1.8

1.8

1.8

1.6

ITS

1.6

1.6

1 ,6

76.5

2.47

152

Calendar- year 1956: Max 274

Jan.

1.6

1 .6

1.6

1.6

1.6

1.6

2.2

1.6

1.6

2.2

8.5

5.1

3.0

2.6

2.2

3.4

3.4

i§

10

*5.6

5.1

4.6

5.1

6.7

5.1

4.6

4.6

4.2

4 .2

124.6

4.02

247

Feb.

4.2

4.2

3.8

5.4

3.4

3.4

3.0

5.8

3.0

3.4

3.4

3.0

3.0

2.6

2.6

2.6

2.2 2~72~

2.2

4.6

4.6

26

28

*24

12

11

8.5

-

182.7

6.52

362

Mar.

13

13

10

19

8£

46

24

18 

29

20

16

18

14

12

13

18

13

11

10

9.8

9.1

8.5

7.9

7.3

6.7

5.6

5.1

5.1

6.2

5.1

4.6

487

15.7

966

Apr.

5.6

*5.1

4.6

4.6

4.2

4.2

3.8

3.8 

3.8

3.8

4.2

4.2

3.8

7.3

5.6

4.6

5.6

~5.5 10

6.7

5.6

5.1

4.6

4.2

4.2

3.8

3.4

3.4

3.0

3 .0

144.3

4.81

286

May

2.6

3.0

3.0

2.6

2.6

2.2

2.6

2 . 6 

2.6

2.6

3.0

3.0

2.6

*3.8

3.0

2.2

1.8

ll

T3" 21

14

8.5

6.2

4.2

3.8

3.4

2.6

3.0

3.0

2 . 6

3.0

145'. 1

4.68

288

June

1.8

1.8

1.8

1.6

1.4

1.4

1.4

1.6 

1.6

2.2

1.4

1.4

1.4

1.2

1.4

1.4

1.4

.8

.8

.6

.6

.5

.4

*.3

.2

.2

O

7J

0

0

30.6

1.02

61

July

(*)

0

0

0

Aug.

(*)

O

0

0

Sept.

(*)

(»)

0

0

0

Mln 0 Mean 11.6 Ac-ft 8,380

Water year 1956-57: Max 89 Min 0 Mean 3.47 Ac-ft 2,510

Peak discharge (base, 90 cfs).--Mar. 5 (4 p.m.) 119 cfs (2.94 ft). 

* Discharge measurement or observation of no flow made on this day.
SAN JOAQUIN RIVER BASIN 359

Cosgrove Creek near Valley Springs, Calif.

Location.---Lat 38°08'10", long 120°50'05", in SE^ sec. 35, T. 4 N., R. 10 E., on right 

bank 0.4 mile upstream from mouth and 2.7 miles south of Valley Springs.

Drainage area. 20.6 sq mi.

Records available. October 1929 to September 1957.

Sage. Water-stage recorder. Altitude of gage is 550 ft (from topographic map). Prior to 

Mar. 17, 1930, staff gage at site a quarter of a mile downstream at different datum.

Average discharge.--28 years, 7.74 cfs (5,600 acre-ft per year); median of yearly mean 

discharges, 5.9 cfs (4,300 acre-ft per year).

Extremes . Maximum discharge during year, 830 cfs Mar, 5 (gage height, 5.40 ft); no flow 

for several months.

1929-57: Maximum discharge, 3,240 cfs Dec. 23, 1955 (gage height, 8.96 ft), from 

rating curve extended above 900 cfs on basis of slope-area determination of peak flow; 

no flow for several months during each year.

Remarks. Records good. Ho storage or diversion above station.

Rating table, water year 1956-57 (gage height, in feet 

and discharge, in cubic feet per second)

1.93

2.0

2.1

2.2

2.3

2.4

2.5

.1

.2

.8

2.0

4.2

7.3

2.7 

2.9 

3.2 

3.5 

4.0 

4.6

70

128

252

460

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Z5

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

(*)

0

0

0

Dec.

(*)

0

0

0

Calendar year 1956 : Max 505 

Water year 1956-57 : Max 436

Jan.

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-v!

0

0

0

0

0

.1

0

0

0

0

0

0.2

0.006

0.4

Feb.

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.4

8.1

35

*8.1

7.3

10

70.9

2.53

141

Mar.

50

15

20

141

456

*91

27

15

66

24

13

29

15

8.1

6.2

7.3

5.4

4.0

3.2

2.6

2.0

1.8

1.6

1.5

1.4

1.4

1.2

1.1

TTZ

1.4

1.2

994.6

32.1

1,970

Apr.

1.0

.8

.8

.6

.5

.5

.4 *.4

.4

.3

.3

.2

.2

1.1

1.2

.8

1.0

4.0

270

1.2

.9

.8

.6

.5

.4

.3

.3

.2

.2

_a

22.0

0.73

44

May

9^i

.1

.1

.1

.1

**.!

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.8

2.0

2.0

1.4

.8

.5

.3

.2

.1

.1

.1

.1

.1

10.4

0.34

21

June

0.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

July

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Min 0 Mean 8.97 Ac-ft 6,520 

Min 0 Mean 3.01 Ac-ft 2,180

Peak discharge (base, 510 cfs).--Mar. 5 (4 a.m.) 850 cfs (5.40 ft).

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.
360 SAN JOAQUIN RIVER BASIN

Calaveras River at Jenny Lind, Calif.

Location. Lat 38°05'20", long 120°51'53", in NW£ sec. 27, T. 3 N., R. 10 E., on right

bank 70 ft downstream from bridge on Milton Road, 0.2 mile south of Jenny Lind, and

6.5 miles downstream from Cosgrove Creek. 

Drainage area.--395 sq mi.

Records available. January 1907 to September 1957. 

Gage. Water-stage recorder. Altitude of gage is 220 ft (from topographic map). Prior to

Dec. 3, 1925, staff gage on center pier of bridge. Prior to October 1917, at datum

7.00 ft higher, and October 1917 to May 1928 at datum 2.00 ft higher. 

Average discharge . 48 years (1908-23, 1924-57), 231 cfs (167,200 acre-ft per year). 

Extremes. Maximum discharge during year, 3,160 cfs Mar. 5 (gage height, 7.26 ft); no flow

Sept. 3-30.

1907-57: Maximum discharge observed, 50,000 cfs Jan. 31, 1911 (gage height,

21.0 ft, present datum), from rating curve extended above 11,000 cfs; no flow during

late summer of most years.

Revisions.--The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede figures published in the water-supply

papers indicated.

WSP

299

391

441

461

481

511

531

551

611

Water 

year

1907

1914

1916

1917

1918

1919

1921

1922

1925

Date

Mar

Jan

Jan

Feb

Mar

Feb

Jan

Feb

Feb

. 19,

. 22,

 I?,

. 21,

. 12,

. 11,

. 18,

. 9,

 6,

1907

1914

1916

1917

1918

1919

1921

1922

1925

Discharge 

(cfs)

34,600

12,100

22,000

31,300

21,800

11,000

37,900

24,500

27,500

Gage he 

(fee

til

t6

t?

t8

t!2

t9

t!5

12

13

>ight 

>t)

4

2

2

9

0

5

5

0

t Maximum observed.

Remarks. Records good except those for periods of no gage-height record, which are fair.

 Flow regulated by Hogan Reservoir at Stockton flood-control dam beginning in 1930 

(usable capacity, 75,000 acre-ft), by Bingham Reservoir (capacity, 775 acre-ft) on 

North Fork Calaveras River, and by some seepage of North Fork Stanislaus River water 

from diversion canals and reservoirs; normally not over 1.5 cfs. Records of chemical 

analyses for the water year 1957 are given in WSP 1523.

Revisions (water years). WSP 1181; 1911. Revised figures of discharge, in cubic feet per 

second, for the water years 1907, 1909-10, 1914-19, 1921, and 1923, superseding those 

published in WSP 299, 391, 411, 441, 461, 481, 511, 531, and 571 are given herewith:

Date

1907

Mar. 4

5

6

10

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29

1909 

Jan. 12

13

14

15

16 

20

21 

22

Feb. 11

12

13

15

16

17

Dec. 1

2

3

5

7

8

9

10

1913

Dec. 30

Discharg

l',230

2,720

1,990

13,000

7,670 

5,150 

4,420 

2,090 

1,660 

2,510 

8,400 

9,170 

24,600 

7,040 

6,140 

6,140 

6,140 

6,140 

6,320 

3,300 

2,360 

1,920 

1,920

540

7,290

10,600

7,310

1,990 

3,280

18,600 

3,680

5,710

9,930

5,030

1,520

2,010

1,620

550

1,420

870

1,520

1,630

1,370

7,440

1,300

270

Date

1913-Con.

Dec. 31

1914

Jan. 1

2 

3

4 

5 

6 

13 

14 

15 

16 

17 

18 

19 

21 

22 

23 

24 

25 

26 

27

28

29 

30

Feb. 18

19

20

21 

22

23 

24

25

Oct. 13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

Discharge

3,480

6,360

1,460 

1,300 

940 

660 

200 

310 

1,210 

1,600 

780 

,830 

,560 

,650 

,110 

,830 

,420 

,220 

,220 

,740 

,080

,420

830 

290

,030

,330

,860

,100 

,240

,100 

1,660

1,420

55

55

55

55

70

70

70

70

70

90

90

90

90

90

90

90

Date

1914-Con.

Oct. 29

30

31

Nov. 1

2 

3

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20

21

22 

23

24

25

26

27 

28

29 

30

Dec. 1

2

1915

Oct. 1-31

Nov. 1-30

Dec. 16

1916

Jan. 3

4

8

9

10

11

14

15

Discharge

90

90

90

90

90

90 

90 

90 

90 

70 

70 

55 

55 

55 

40 

40 

40 

40 

40 

40 

40 

40 

40

40

40 

40

40

40

40

40 

40

40 

40

40

40

a6

a6

36

4,740

4,580

640

2,120

4,400

1,180

3,600

1,920

Date

19 16 -Con.

Jan. 17

18

19

24

25 

26 

27 

28 

29 

30 

Mar. 4 

5 

6 

7 

19 

20 

21 

22 

23

1917 

Feb. 19 

20

21

22 

23

24

25

26

27

1918 

Mar. 6

7

8

10

11

12

13

1919

Feb. 9

10

11

12

1921

Jan. 17

18

19

Discharge

9,280

3,350

1,260

1,270

3,480 

2,360 

5,830 

4,790 

2,640 

1,320 

1,360 

7,420 

2,620 

1,190 

1,010 

9,930 

2,740 

1,440 

969

521 

1,600

19,700

17,500 

5,700

6,040

6,460

3,460

1,610

180

7,130

2,120

5,640

16,900

14,100

1,710

160

3,270

7,440

1,160

2,070

24,600

5,100

Date

1921-Con.

Jan. 20

21

29

30

1923 

Apr. 16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

May 1 

2 

3

4

5 

6

7

8

9

10 

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Discharge

4,460

1,420

1,640

8,620

320 

320 

320 

320 

320 

250 

250 

250 

250 

250 

170 

170 

170 

170 

170 

150 

150 

150

150

150 

150

150

150

150

150 

130

130 

130

130

130

130

130

130

130

130

90

90

90

90

90

90

90

90

90

90

90

a Average for period indicated.
SAN JOAQUIN RIVER BASIN 

Calaveras River at Jenny Lind, Calif. Continued

361

Month

December. ..................................

Water year 1910-11. ......................

Water year 1914-15. ......................

Calendar year 1916. ......................

February 1917. .............................

Calendar year 1917. ......................

March 1918. ................................

Calendar year 1919. ......................

January 1921 ...............................

Calendar year 1921. ......................

Calendar year 1923. ......................

Maximum

27,7,

9 930

31,400

8,420

_

9,930

19,700

19,700

16,900

16,900

7,440

24,600

24,600

Minimum

37

-

0

-

89

0

137

0

0

150

0

0

Mean

*106

745

338

435

2,370

377

2,180

247

129

1,780

267

146

Runoff In 

acre-feet

*6.490

539,000

245,000

315,000

132,000

273,000

134,000

179,000

93,100

109,000

193,000

105,000

Correction.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

4

3

2

2

2

2 

2

2

1

T

1

1

1

1

1

1

1

*7.0

7.0

7.5

7.5

7.0

8.0

9.5

12

17

22

26

28

27

239.5

7.73

475

Nov.

5148"

37

29

 25

23 

25

21

20

20

20

19

T?

19

20

20

20

20

21

21

21

21

21

21

21

21

21

22

22 

22

711

23.7

1,410

Dec.

22

*22

24

32

60 

80

63

47

39

35

33

32

32

30

31

30

28

28

29

32

34

32

44

39

35

31

30

32 

32

30

1,090

35.2

2,160

Jan.

28

28

*26

26

28

30 

31

31

31

33

33

31

39

125

120

88

66

53

47

62

180 T6~8"

119

90

76

80

91

82

69 

60

53

2,034

65.6

4,030

Feb.

50

47

47

»48

48

46 

45

46

85

110

96

98

109

98

72

5.4

.8

.6

.6

.4

1.2

1.6

2.2

7.5

37

17

39

123

-

1,281.3

45.8

2,540

Mar.

262

398

998

986

2,370

»2,820 

27520"

1,390

77

56

35

50

45

34

32

31

29

26

26

25

22

18

17

17

17

16

16

14

13 

12

12

12,384

399

24,560

Apr.

11

10

10

9.5

10

9.5 

9.0

10

11

12

12

12

16

14

13

15

21

17

15

16

19

21

22

12

21

18

16

14 

14

430.0

14.3

853

May

14

15

13" 13

13

 13 

13

13

13

13

13

14

14

15

14

13

13

18

20

22

26

23

22

20

18

18

18

18

25 

74

105

656

21.2

1,300

June

143

162

162

160

160

160 

160

168

182

182

188

205

218

218

212

212

*180

160

195

208

223

235

232

229

226

210

202

195

182 

182

5,751

192

11,410

July

182

188

180

178

178

175 

172

19T

190

190

192

200

200

195

192

192

190

192

190

195

195

192

192

190

*188

190

188

185

185 

188

192

5,842

188

11,590

Hug.

190

188

192

190

188

185 

182

195

175

170

168

182

210

235

229

215

210

200

190

178

»166

154

139

119

90

58

35

32

26 

10

5.7

4,704.7

152

9,350

Sept.

1.2

.3

00"

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

1.5

0.05

3.0

Calendar year 1956: Max 3,900 Min 1 Mean ZS6 Ac-ft 185,900

Water year 1956-57: Max 2,820 Mln 0 Mean 96.2 Ac-ft 69,660

* Discharge measurement made on thla day. Note. No gage-height record Oct. 1-17; discharge estimated on basis of recorded range In stage and records furnished by California Department 

of Water Resources for Calaveras River at Bellota and Morman Slough at Bellota.
362 SAN JOAQUIN RIVER BASIN

Bear Creek near Lockeford, Calif.

Location. Lat 38°09'15", long 121°08'15", in NW£SEir sec. 31, T. 4 N. , R. 8 E., on right 

bank 15 ft downstream from county road bridge and 0.8 mile southeast of Lockeford.

Drainage area. 48.4 sq mi.

Records available.--November 1930 to September 1933, October 1943 to September 1957. October 1926 to November 1930 at site 3 miles downstream; records not equivalent.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 90 ft (from topographic map).

Average discharge.--17 years (1930-33, 1943-57), 8.00 cfs (5,790 acre-ft per year); 

median or yearly mean discharge, 5.3 cfs (3,840 acre-ft per year).

Extremes.--Maximum discharge during year, 654 cfs Mar. 5 (gage height, 8.63 ft); no flow 

during several months.

1930-33, 1943-57: Maximum discharge, 2,260 cfs Feb. 2, 1945 (gage height, 14.45 ft); 

no flow for several months each year.

Remarks.--Records good. No storage or diversion above station. Water may be released 

from East Bay Municipal Utility District aqueduct into Bear Creek at rare intervals. 

This year the release was from Dec. 18 to Jan. 15 and about 1,000 acre-ft passed the 

station at the request of the State Department of Fish and Game.

Rating tables, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Dec. 21 to Jan. 15)

Oct. 1 to Feb. 24

2.3

2.4

2.5

2.6

1.9 

3.6

2.7

2.8 

3.0 

3.2

2.35

2.4

2.5

2.6 

2.8 

3.0 

3.2

Feb. 25 to Sept. 30

0

.1 

1.4 

3.1

7.9

3.6 

4.0 

4.5 

5.0 

6.0 

8.0

104

158

285

560

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

(*)

0

0

0

Dec.

o

0

*0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

*0

7.5

L9

10

12

20

22

*21

22

22

22

22

199.5

6.44

396

Jan.

22

*22

22

22

22

22

22

22

20

21

22

21

26

T9

6.1

.8

.2

.1

0

1.0

1.0

.5

0

0

0

0

0

.1

.1

0

0

314.9

10.2

625

Feb.

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

.3

14

6_3

*9.3

9.7

13

-

109.3

3.90

217

Mar.

154

22

9.5

47

534

*194

*32

17

38

33

12

14

18

7.9

5.5

8.6

6.6

3.3

2.1

1.6

1.0

.8

.5

.4

.j.

.1

.1

.1

.1

.1

.1

1,163.5

37.5

2,31.0

Apr.

0.1

0

0

0

0

.1

.4

**.!

.1

.2

.1

**.!

0

0

0

0

0

0

2.0

1.7

1.0

.6

.2

.1

0

0

0

0

0

0

6.8

0.23

13

May

JL

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0.4

0.01

0.8

June

(*)

0

0

0

July

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956: Max 747 Mln 0 Mean 14.8 Ac-ft 10,750

Water year 1956-57: Max 534 Mln 0 Mean 4.92 Ac-ft 3,560

Peak discharge (base, 220 cfs). Mat>. 1 (5:30 a.m.) 388 cfs (6.77 ft); Mar. 5 (4 p.m.) 654 cfs 

(8.65 ft)._____________________________________________________________________

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.
SAN JOAQUIN RIVER BASIN 363

Delta-Mendota Canal near Tracy, Calif.

Location. Lat 37°47'45", long 121°35'05", In SW^SWi see. 31, T. 1 S., R. 4 E., at Tracy 

Pumping Plant at intake to canal, 6 miles southeast of Byron and 10 miles northwest 

of Tracy.

Records available. June 1951 to September 1957.

Gage. Water-stage recorder on forebay, pressure gages on pump discharge lines, and operating time of pumps. Datum of gage is at mean sea level (levels by Bureau of Reclamation).

Average discharge. 6 years, 1,149 cfs (831,800 aore-ft per year).

Extremes. 1951-57: Maximum daily discharge, 4,418 cfs Feb. 9, 1957; no flow for several 

months each year.

Remarks. Discharge computed from records of operation of pumps. Water is diverted frou 

Sacramento-San Joaquin Delta by way of Old River and a dredged channel to Tracy Pumping Plant where it is lifted about 200 ft into canal. Water, less intermediate diversions, flows into Mendota Pool on San Joaquin River to replace water diverted at Friant 

Dam. Canal is a part of Central-Valley project. Records of chemical analyses for tie 

water year 1957 are given in WSP 1523.

Cooperation.--Records of daily discharge furnished by Bureau of Reclamation and reviewed 

by Geological Survey.

Discharge, in cubic feet per second, water year October 1956 to September 1956

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

933

1.071

1,061

1,028

1,027

1,028

1,030

1,027

1,029

962

863

862

861

860

861

715

750 "749

750

749

751

608

177

108

70

215

0

TJ

69 

144

0

20,358

657

40,380

Nov.

69

142

0

0

0

0

0

o

69

214

0

0

0

0

67

286

0

0

0

70

 Q357

0

0

69

286

0

0

58 

286

1,973

65.8

3,910

Dec.

0

3

0

0

0

70

286

0

0

0

71

286

0

0

71

286

0

0

0

0

0

70

284

0

0

0

69

251

0

O

0

1,744

56.3

3,460

Jan.

0

3

0

70

249

0

0

0

0

0

69

 5251

0

0

0

0

0

70

250

0

0

0

0

0

0

0

0

0

o

0

959

30.9

1,900

Feb.

61

250

-s0

0

63

995

*3,668

*4.418

4,149

1,949

286

69

464

465

681

866

865

929

1,000

1,179

1,294

1,103

685

684

682

684

613

"

28,102

1,004

55,740

Mar.

1,792

*3,887

*4,417

*3,876

1,802

866

WF

869

870

868

868

868

867

867

933

1,134

1,130

1,467

1,467

1,471

1,467

1,464

1,784

2,379

2,349

2,350

2,247

2,248

2,259 

2,349

2, 352

54,434

1,756

108,000

Apr.

2,584

2,570

2,550

2,516

2,527

2,585

2,578

2,581

2,580

2,638

2,738

2,736

2,870

2,877

2,873

2,744

2,746

H,314

2,287

1,562

1,329

1,332

1,361

1,785

1,854

1,721

1,723

1,800

1,936 

2,341

68,647

2,288

136,200

May

2,339

2,591

2,542

2,475

2,478

2,487

2,479

2,477

2,405

2,548

2,530

2,530

2,419

2,280

2,135

2,013

2,029

2,028

2,019

1,739

1,667

1,572

1,433

1,401

1,201

1,203

1,671

1,747

2,288 

2,537

2 534

65,797

2,122

130,500

June

2,551

2,531

2,596

2,782

2,780

2,956

3,318

3,333

3,134

3,133

3,170

2,866

2,931

3,025

2,924

3,014

3,043

3,117

3,052

3,154

3,430

3,597

3,596

3,602

3,605

3,515

3,617

3,624

5,626 

3,620

95,222

3,174

188,900

July

3,611

3,540

3,431

3,520

3,452

5,511

3,315

3,321

3,320

3,361

3,443

3,631

3,651

5,664

3,662

3,659

3,660

3,512

3,503

3,509

3,514

3,450

3,385

3,381

3,366

3,326

3,328

3,328

3,340 

3,445

3,667

107,606

3,471

213,400

Aug.

3,530

3,529

3,536

3,541

3,541

3,406

3,337

3,313

3,310

3,208

3,206

3,212

2,972

2,974

2,975

2,972

3,036

3,037

3,041

3,044

3,044

2,978

2,879

2,782

2,787

2,687

2,681

2,676

2,503 

2,402

2, 402

94,541

3,050

187,500

Sept.

2, '253

2/257

2,049

1,372

1,370

1,798

1,725

1,728

1,723

1,575

1,374

T7T29"

1,868

1,942

1,728

1,726

1,731

1,731

1,730

1,730

1,828

1,827

1,862

1,893

1,965

2,026

2,029

2,025

2_,_525 

2,023

56,242

1,875

111,600

Calendar year 1956: Max 3,370 

Water year 1956-57: Max 4,418 Win 0

Mean 930 

Mean 1,632

Ac-ft 675,100 

Ac-ft 1,181,000

Discharge measurement made on this day.
364 SAM JOAQUIN RIVER BASIN

Salt Springs Reservoir near West Point, Calif.

Location. Lat 38°30', long 120°12', in SE^ sec. 33, T. 8 N. , R. 16 E., at right end of

 Salt "Springs Dam on North Pork Mokelumne River, 2 miles upstream from Cold Creek and 

18 miles northeast of West Point.

Drainage area. 160 sq mi.

Records available. March 1931 to September 1957.

Gage.--Staff gage read once daily. Datum of gage is 3,700 ft above mean sea level (levels 

T>y Pacific Gas & Electric Co.); gage readings have been reduced to elevations above 

mean sea level.

Extremes.--Maximum contents observed during year, 140,000 acre-ft June 15, 16, 18, 22-29

 (elevation, 3,958.0 ft); minimum observed, 10,300 acre-ft Feb. 12 (elevation, 3,758.5 

ft).

1931-57: Maximum contents observed, 140,000 acre-ft for several days in June or 

July each year 1948-54, 1956-57 (elevation, 3,958.0 ft); no contents Jan. 30 to Feb. 5, 

Feb. 18-26, 1932, Mar. 1-25, 1933, Jan. 29-31, 1945.

Remarks. Reservoir is formed by concrete-faced rock-fill dam, completed in 1931; storage

 Began in March 1931. Capacity, 139,000 acre-ft between elevations 3,707.25 (powerhouse intake) and 3,957.0 ft (upper operating limit, 1 ft below top of radial gates) 

above mean sea level. Additional storage of 1,860 acre-ft is available for release to 

river through outlet drain at elevation 3,667.75 ft. Water is released through powerhouse just below dam and discharged into Tiger Creek powerhouse conduit (see following 

page). Records show contents available, at 5 p.m., for use through powerhouse.

Cooperation. Record of contents furnished by Pacific Gas & Electric Co. in connection 

with a Federal Power Commission project.

Capacity table, water year 1956-57 (elevation, in feet, and 

usable contents, in acre-feet)

3,758.0 

3,780.0 

3,800.0 

3.82O.O 

3,830.0

10,200

17,700

26,200

35,800

41,200

3,840.0

3,860.0

3,900.0

3,930.0

3,958.0

46,900

59,400

88,900

114,100

140,000

Usable contents, in thousands of acre -feet

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

108.7

107.9

107.2

106.9

106.1

105.6

105.2

104.6

103.9

103.1

102.6

102.2

101.7

101.2

101.0

100.1

98.9

97.9

97.0

96.2

95.3

94.6

93.6

92.2

91.1

90.2

89.0

87.9

87.4

86.8

86.5

3,897.0

-23,000

Nov.

85.5

84.4

83.2

81.6

80.7

79.6

78.6

77.9

77.1

76.4-

75.6

75.0

74.3

73.8

73.3

72.6

71.7

70.9

70.1

69.4

68.9

68.3

67.5

66.9

66.1

65.3

64.4

63.3

62.4

61.6

_

3,863.2

-24,900

Dec.

60.8

60 . 1

59.4

59.0

58.2

57.6

57.0

56.3

55.7

55.1

54.5

53.4

53.0

52.4

52.0

51.1

50.5

49.8

49.3

48.5

47.8

47.1

46.2

45.4

44.6

43.9

43.4

42.5

41.7

40.9

40.1

3,828.0

-21,500

Jan.

39.4

38.9

38.3

37.6

36.7

35.6

34.6

33.6

32.6

31.6

30.6

29.7

29.8

29.4

28.8

28.0

27.4

26.5

25.9

25.4

24.6

23.8

22.9

22.0

21.2

20.7

20.2

19.7

18.8

18.1

17/7

3,779.9

-22,400

Feb.

17.3

16.8

16.3

15.6

14.8

14.1

13.2

12.7

12.1

10.9

10.5

10.3

10.5

11.3

11.7

12.2

13.0

13.2

13.7

14.4

14.8

15.3

16.4

17.6

20.5

21.9

22.8

23.9

-

__

3,795.1

+6,200

at 5 p.m., water year October 1956 to September 1957

Mar.

24.5

25.3

26.0

26.5

28.3

29.7

31.0

32.0

33.0

33.7

34.5

35.3

36.0

36.6

37.2

37.8

38.3

38.8

39.4

39.9

40.5

41.0

41.4

41.9

42.4

42.9

43.3

44.0

45.2

46.2

47.1

3,840.4

+23,200

Apr.

47.6

47.8

47.8

47.6

48.2

49.2

50.5

51.4

51.9

52.8

53.8

54.4

55.5

57.4

58.4

59.8

60.7

61.5

62.3

63.0

63.5

64.1

64.4

64.2

64.7

65.1

66.3

67.8

70.1

72.5

3,878.3

+25,200

May

74.5

77.8

79.6

81.5

84.2

87.8

91.7

94.9

96.9

98.7

100.2

101.8

103.2

104.0

105.1

106.6

108.8

112.0

119.0

120.7

121.7

123.2

125.1

126.9

129. T

132.5

135.9

159.4

159.0

139.1

139.1

3,957.1

+66.80O

June

138.9

138.8

138.8

158.8

158.8

158.8

159.4

159.5

139.5

139.3

139.7

139.7

139.9

139.7

140 . 0

140.0

139.9

140.0

139.9

139.9

139.9

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

139.9

3,957.9

+800

July

139.8

139.5

139.2

138.8

138.5

138.0

137.8

137.6

137.5

137.2

136.9

136.6

136.1

135.8

135.4

134.7

134.2

133.9

133.7

133.2

132.4

152.0

151.8

131.2

131.1

130.9

130.6

130.3

130.0

129.7

129^6

3,947.1

-10,300

Aug.

129.5

129.5

129.4

129.4

129.2

129.2

129.2

129.2

129.2

129.0

128.7

128.6

128.5

128.4

128.4

128.4

128.5

128.3

128.2

127.7

127.5

127.5

127.5

127.4

125.4

125.5

125.5

124.1

123.6

123.6

122.7

3,939.6

-6,900

Sept.

121.8

12079

120.5

120.1

119.9

119.7

118.9

117.9

117.1

116.2

115.7

115.0

114.4

113.5

112.4

111.4

110.9

110.1

109.5

108.8

107.7

106.6

106.0

105.2

104.6

104.0

103.4

102.4

101.3

100^5

3,914.2

-22,200

Calendar year 1956.................... * -61,000

Water year 1956-57.................... * -9,OOO

t Elevation, in feet, at end of month. 

t Change in contents, in acre-feet.
SAN JOAQUIN RIVER BASIN 365

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif.

Location.--Lat 38°30', long 120°13', in SW£ sec. 33, T. 8 N., R. 16 E., on left bank 

1,000 ft downstream from Salt Springs Dam and powerhouse.

Records available.--June 1931 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 3,700 ft (from 

topographic map). Auxiliary staff gages in stilling wells above and below control.

Average discharge. 26 years, 290 cfs (210,000 acre-ft per year).

Extremes. 1931-57: Maximum daily discharge, 577 cfs June 22, 1945; no flow at times 

each year except 1957.

Remarks. Records excellent. Conduit conveys water of North Fork Mokelumne River from 

tailrace of Salt Springs powerhouse to forebay of Tiger Creek powerhouse. Since December 1952, records include Bear River diversion to Salt Springs powerhouse.

Cooperation.--Water-stage-recorder graph and two discharge measurements furnished by 

Pacific "Gas & Electric Co. in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

TotaJ

Mean

Ac-ft

Oct.

508

492

418

444

512

515

513

508

484

473

496

500

496

497

455

497

497

504

512

508

508

504

504

500

503

509

500

502

489

461 

461

15,270

493

30,290

Nov.

487

500

507

506

503

502

506

501

474

506

5O9

508

514

512

511

518

516

518

518

519

525

526

526

531

33T

531

531

530

528

530

15,424

514

30,590

Dec .

531

532

532

*522

512

514

521

528

528

528

524

526

526

528

528

528

529

529

531

531

537

537

537

537

537

537

490

535

534

532 

532

16,373

528

32,480

Jan.

535

535

519

532

540

540

536

536

536

536

536

300

300

345

398

427

518

513

302

309

514

515

517

517

508

299

299

454

514

414 

342

14,186

458

28,140

Feb.

328

298

298

505

512

508

510

508

508

517

518

5TT

496

449

453

199

199

208

142

149

132

50

50

49

ii

49

49

50

-

8,293

296

16,450

Mar.

99

25

16

92

50

49

25

3.2

26

1.1

1.1

37

49

10

28

48

19

1.9

5.5

1.1

9.3

5.0

5.0

5.0

4.8

4.8

4.2

28

26

39 

68

786.0

25.4

1,560

Apr.

358

356

379

433

418

82

80

425

484

496

499

429

77

78

291

207

184

144

134

77

77

367

*496

493

496

473

204

204

213

119

8,773

292

17,400

May

202

327

435

64

64

362

446

445

386

393

225

225

426

494

393

394

346

342

452

460

463

150

2.4

132

227

227

364

500

499

500 

508

10,45 3 . 4

337

20,730

June

514

511

510

426

512

518

520

520

520

520

520

520

518

518

518

518

518

523

518

517

516

514

512

514

508

July

484

484

482

481

443

302

330

469

469

470

475

470

469

284

480

486

IsTT

487

484

481

476

472

470

466

466

504 1 466

505

505

500

493

15,330

511

30,410

462

206

397

400 

424

13,721

443

27.220

Aug.

480

480

480

476

475

468

464

466

468

468

354

484

484

486

ISe

480

481

476

476

472

472

470

472

474

469

466

463

463

460

241 

195

14,049

453

27,870

Sept.

198

198

256

236

206

316

514

530

530

541

545

544

537

537

539

537

537

537

532

534

534

534

528

528

530

530

530

530

520

520

14,188

473

28,140

Calendar year 1956 : Max 546 Min 0 Mean 448 Ac-ft 325,300

Water year 1956-57 : Max 545 Min 1.1 Mean 402 Ac-ft 291,300

* Discharge measurement made on this day.
366 SAN JOAQUIN RIVER BASIN

North Fork Mokelumne River below Salt Springs Dam, Calif.

Location. Lat 38°29', long 120°13', in Stf£ sec. 33, T. 8 N., R. 16 E., on left bank 

0-3 mile downstream from Salt Springs Dam and 1.7 miles upstream from Cold Creek.

Drainage area. 160 sq mi.

Records available.--September 1926 to September 1957. Published as "above Moore Creek" 

1926-30.

Gage.--Water-stage recorder. Altitude of gage is 3,600 ft (from topographic map). Prior 

to Sept. 12, 1928, at site 100 ft upstream and Sept. 12, 1928, to Sept. 23, 1940, at 

present site, at datum 2.0 ft higher.

Average discharge . 30 years (1927-57), 460 cfs (333,000 acre-ft per year), combined 

now of Nortfi Fork Mokelumne River and Tiger Creek: powerhouse conduit minus Bear 

River diversion.

Extremes.--Maximum discharge during year, 3,550 cfs June 2 (gage height, 9.22 ft); minimum daily, 2.6 cfs Feb. 18-22.

1926-57: Maximum discharge, 16,000 cfs Nov. 21, 1950 (gage height, 17.20 ft), from 

rating curve extended above 3,000 cfs on basis of computations of flow over dam and 

discharge through powerhouee; minimum daily, 0.3 cfs Mar. 31, Apr. 1, 1931.

Remarks.--Records good. Flow regulated since 1931 by Salt Springs Reservoir (see p. 364 ). 

Diversion above station through Tiger Creek powerhouse conduit (see preceding page) . 

Mean annual flow from Bear River-Cold Creek diversion into Salt Springs powerhouse 

was 125 cfs this water year.

Cooperation. Water-stage-recorder graph and seven discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

0.9 

1.0 

1.2 

1.4 

1.7 42

2.0 

2.5 

3.0 

3.5 

4.0

72

139

229

345

495

5.0 

6.0 

8.0 

9.0

860

1,340

2,550

3,350

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

11 

11

11

11

11

11

12

11

11

11

11

11

11

11

11

61

162

225

172

130

133

122

»130

128

121

117

126

127

106

106 

39

2,171

70.0

4,310

Nov.

126 

145

213

TSs

123

121

126

190

147

158

147

118

116

116

138

152

145

118

114

54

8.8

64

116

158

176

174

170

167

127

121

4,003.8

133

7,940

Dec.

77 

66

121

*120

49

49

83

127

126

127

100

118

126

126

116

68

96

97

117

124

124

124

123

133

144

138

120

126

127

127 

126

3,445

111

6,830

Jan.

6.4 

179

4.4

4.1

3.8

4.1

4.1

4.1

3.8

3.8

3.8

3.8

6.4

3.8

4.1

3.8

3.8

3.8

3.8

4.9

3.6

*3.1

37T

3.1

3.1

3.6

3.3

3.6

3.8

3.6 

3.6

123.0

3.97

244

Feb.

3.3 

3.3

3.3

3.1

2.8

3.3

3.6

4.1

4.1

3.3

3.8

3.6

3.3

3.3

3.1

2.8

2.8

2.6

2.6

2.6

2.6

2.6

6.1

8.8

8.5

5.7

4.9

3.8

107.7

3.85

214

Mar.

3.3 

3.1

2.8

4.1

11

8.5

6.1

4.9

5.7

4.6

4.1

5.4

5.1

»5.1

4.9

5.1

4.6

4.9

4.9

4.1

4.4

4.9

5. 1

5.4

5.4

5.4

39

20

7.8

7.8

7.4

214.9

6.93

426

Apr.

9.2 

8.8

8.5

.8

.4

a

;.4

.1

» .

7.

8.

12

15

T5

241.8

8.06

480

May

15 

16

16

15

15

15

15

15

14

14

14

14

14

14

16

12

12

211

448

445

442

292

93

18

17

18

336

1,190

2,170

1,640

2jl90

9,756

315

19,350

 June

2,920 

2,750

2,630

*2,740

2,530

2,070

1,480

1,830

1,440

965

908

1,280

1, 180

932

547

582

586

737

888

840

601

576

602

584

440

402

342

288

88

92

33,850

1,128

67,140

July

22

20

20

20

19

19

19

20

19

»19

19

19

19

19

19

19

19

18

18

18

18

18

18

18

18

18

18

18

18

18 

18

582

18.8

1,150

Aug.

18 

18

18

17

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16 

15

502

16.2

996

Sept.

15 

T5

15

15

15

15

15

15

15

15

15

15

15

14

14

14

14

14

14

13

13

13

13

13

13

»13

13

13

12

T2

420

14.0

833

Calendar year 1956: Max 5,340 Min 8.8 Mean 483 Ac-ft 350,900

Water year 1956-57: Max 2,920 Min 2.6 Mean 152 Ac-ft 109,900

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 367

Cold Creek near Mokelumne Peak, Calif.

Location. Lat 38°31', long 120°13', in sec. 28, T. 8 N., R. 16 E., on right bank 

2.4 miles upstream from mouth and 6 miles southwest of Mokelumne Peak.

Drainage area. 23 sq mi, approximately.

Records available. July 1927 to November 1942, October 1943 to September 1957. 

Gage. Water-stage recorder. Altitude of gage is 6,000 ft (from topographic map). 

Average discharge. 29 years, 62.9 cfs (45,540 acre-ft per year).

Extremes. Maximum discharge during year, 1,560 cfs May 18 (gage height, 5.98 ft); minimum, 0.1 cfs Oct. 1-3, 21, 22, Sept. 25-28.

1927-57: Maximum discharge, 5,500 cfs Nov. 18, 1950 (gage height, 9.69 ft), from 

rating curve extended above 900 cfs on basis of slope-area determination of peak flow; 

no flow for many days in 1931, 1948-49, 1954-55.

Revisions. The figures of maximum discharge for some water years have been revised 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

671 

706 

861

Water 

year

1928 

1930 

1938

Date

Mar. 

May 

Dec.

25, 1928 

20, 1930 

11, 1937

Discharge 

(cfs)

3 ,000 

472 

4,650

Gage height 

(feet)

7.79 

4.45 

8.98

Remarks. Records good except those for periods of ice effect, which are fair. No storage 

or diversion above station.

Cooperation. Water-stage-recorder graph and seven discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Revisions. Revised figures of discharge, in cubic feet per second, for the water years 

 1928, 1930, 1944, 1947, superseding those published in WSP 671, 706, 1011, and 1091, 

are given herewith:

Date

1928

Mar. 24

25

26

1930

Nov. 23-30

Discharge

515

2,460

1,280

a. 8

Date

194V

Jan . 28

29

30

31

Feb. 1

2

Discharge

15

15

15

14

15

15

Date

1947-Con.

Feb. 3

4

5

6

7

8

Discharge

15

16

17

18

22

26

Month

Calendar year 1928 .............................

January 1930 .....................................

Water year 1929-30 .............................

November 1930. ...................................

Water year 1930-31 .............................

December 1943. ...................................

Calendar year 1944. ............................

Tiary 1947 .....................................

Calendar year 1947 .............................

Cfs -days

_

-

-

-

-

-

-

17,869.9

452

14,936.7

Maximum

2,460

-

271

£.6

187

"

412

436

Minimum

_

0.4

.7

"

.3

.3

0

"

_

_

.1

.1

11 

18

.1

.1

Mean

58.1

55.3

20

43.0

.69 

41.2

24.3

t2

t5

42.8

48.8

14.6 

29.6

39.4

40.9

Runoff in 

acre-feet

12,800

42,200

40,100

1,940

31,100

41 

29,800

17,600

t!23 

t307

t460

t2,150

31,050

35,440

897 

1,640

28,550

29,630

"t Only monthly figures revised; revised dally figures not 

a Average for period Indicated.
368 SAN JOAQUIN RIVER BASIN

Cold Creek near Mokelumne Peak, Calif. Continued

Rating tables, water year 1956-57, except periods of Ice effect ge height, In feet,

(Stage -discharge relation Indefinite

0.4

.5

.6

.7

.8

Oct. 1 to May 18

0.1 0.9 4.8

.3 1.0 7.1

.9 1.1 9.7

1.8 1.3 18

3.2 1.5 28

2.0

2.5

3.0

4.0

63

122

207

485

0.3

.4

.5

.6

.7

.8

Aug. 16 to Sept. 18)

May 18 to Sept.

0.1 0.9 4.2

.2 1.0 6.6

.4 1.1 9.7

.7 1.3 18

1.1 1.5 28

2.1

30

2.0

2.5

3.0

4.0

5.0

67

134

228

520

975

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-It

Oct.

0.1

.1

.1

.2

.3

.2

.3

.5

.3

.3

1.3

.6

.4

.3

.3

.2

.2

.2

.2

.2

.1

*.l

.3

.5

.5

1.1

20

6.2

4.0

5.3

8,7

53.1

1.71

105

Nov.

7.4

6.2

8.4

10

15

20

22

30

32

30

25

20

16

10

8

7

5.7

5.5

4.5

4.0

3.5

3T5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.5

321.7

10.7

638

Dec.

3.5

3^

*3.5

3.5

3.5

4

4

5

5

5

30

60

50

30

20

16

14

12

10

8

6

6

6

6

6

6

6

6

6

6

6

356.5

11.5

707

Jan.

6

6

6

6

6

6

6

6

6

6

6

6

7

10

11

10

9

8

8

8

9

10

10

9

8

8

8

7

7

7

7

233

7.5

462

Feb.

8

8

8

8

]_

1

7

7

7

8

282

187

296

28T

122

116

107

80

68

55

46

39

42

76

212

108

88

70

-

2,350

83.9

4,660

Mar.

56

57

49

46

61

88

80

63

57

49

49

47

41

42

41

37

37

32

32

40

45

38

35

45

56

52

77

121

~aa 143

yo

92

1,806

58.3

3,580

Apr.

67

57

77

124

159

159

130

128

153

176

155

138

150

205

126

104

77

68

61

55

54

61

66

86

118

150

196

247

273

258

3,878

129

7,690

May

274

234

164

240

319

353

320

227

144

138

116

106

TTO

120

120

*197

227

659

406

176

187

195

183

195

246

332

379

315

337

365

392

7,776

251

15,420

June

442

394

*387

391

376

283

268

236

185

159

173

166

161

125

108

101

100

111

106

93

82

72

69

58

50

44

40

34

28

15

4,865

162

9,650

July

18

14

11

9.4

8.0

6.8

7.2

5.8

4.6

*4.2

3.9

3.5

3.1

2.7

2.5

2.0

1.8

*1.5

1.3

1.2

1.1

1.1

1.0

1.0

1.0

1.0

1.0

.9

.8

.7

.6

122.7

3.96

243

Aug.

~76 0.6

.6

.6

.5

.6

.6

.6

.6

.6

.6

.5

.5

.5

.4

> .4

14.8

0.48

29

Sept.

> 0.3

.3

.2

.2

.2

.2

.2

.1

*.l

.1

.1

.2

.2

7.5

0.25

15

Calendar year 1956: Max 682 Mln 0.1 Mean 91.7 Ac-ft 66,550

Water year 1956-57: Max 659 Mln 0.1 Mean 59.7 Ac-ft 43,200

Peak discharge (base, 500 cfs).--Peb. 11 (8:30 a.m.) 990 cfs (5.10 ft); May 6 (6 p.m.) 588 cfs 

(4.27 ft); May 18 (7:50 p.m.) 1,560 cfs (5.98 ft); June 1 (7:50 p.m.) 785 cfs (4.62 ft). 

* Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by Ice Nov. 15, 16, Nov. 18 to Feb. 10.
SAN JOAQUIN RIVER BASIN 369

Bear River near Salt Springs Dam, Calif.

Location. Lat 38°29' , long 120°18', In sec. 2, T. 7 N., R. 15 E., on right bank 200 ft 

upstream from diversion to Tiger Creek powerhouse conduit and highway bridge, 0.7 mile 

upstream from mouth, and 4 miles west of Salt Springs Dam.

Drainage area. 48 sq ml, approximately.

Records available. October 1951 to September 1957.

Gage. Water-stage recorder and concrete weir. Altitude of gage is 3,600 ft (from topographic map).

Average discharge. 6 years, 85.8 cfs (62,120 acre-ft per year).

Extremes. Maximum discharge during year, 3,060 cfs May 18 (gage height, 5.35 ft), from 

rating curve extended above 560 cfs by logarithmic plotting; minimum daily, 2.5 cfs 

Nov. 12-21, Dec. 2.

1951-57: Maximum discharge, that of May 18, 1957; minimum dally, 2.1 cfs Nov. 14, 

1954, Nov. 3-6, 27-30, 1955.

Flood in November 1950 reached a stage of 11.2 ft, from floodmarks (discharge 

unknown).

Remarks. Records good. Plow regulated by Bear River and Lower Bear River Reservoirs 

(combined capacity, 55,500 acre-ft). Water diverted for power from Lower Bear River 

Reservoir through tunnel to Salt Springs powerhouse on North Pork Mokelurane River, 

Dec. 3, 1952. water diverted occasionally from Cold Creek Into Lower Bear River 

Reservoir.

Cooperation. Water-stage-recorder graph and five discharge measurements furnished by 

Pacific Gas & Electric Co. In connection with a Federal Power Commission project.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.0

1.1

1.2

1.3

59

160

348

3.0 

3.5 

4.0

640

980

1,400

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

4.9 s]s

5.5

6.1

6.1

6.1

6.1

6.1

6.1

6.1

8.0

5.5

4.9

4.9

4.9

5.5

5.5

5.5

4.9

4.9

4.9

4.9

8.0

7.3

6.7

9.4

8.7

6.7

5.5 

10

ii

199.2

6.43

395

Nov.

9_4

7.3

6.1

5.5

5.5

4.4

3.4

3.4

3.4

3.0

3.0

2 .5

2.5

2 '.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

3.0

3.0

3.0

3.0

3.0

3.4

3.4

3.4 

3.0

107.6

3.59

213

Dec.

3.0

2.5

3.0

*3.4

4.4

3.9

3.9

8.7

4.9

6.7

108~.0 s'.i

6.7

6.1

5.5

5.5

5.5

4.9

4.9

4.4

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3 9

3.9

151.6

4.89

301

Jan.

3.9

379

3.9

3.9

3.9

3.9

3.9

.9

.9

.9

.4

.3

19 -§-.4

7.3

7.3

6.1

6.1

6.1

7.3

6.7

8.0

6.1

6.1

5.5

5.5

17

18

18

18

18

249.2

8.04

494

Feb.

18

16

14

14

14

9.4

6J,

9.4

8.0

8.0

30

23

28

26

21

26

25

24

20

18

25

21

63

114

142

104

76

59

-

961.9

34.4

1,910

Mar.

53

48

44

67

222

160

114

87

94

72

61

65

55

*50

50

46

42

38

38

37

35

33

32

37

32

33

35

38

53

51

53

1,870

60.3

3,710

Apr.

50

44

42

42

42

42

38

38

35

33

32

30

29

42

37

33

35

35

33

33

30

32

*32

30

30

29

28

2"6~ 25

26

1,033

34.4

2,050

May

25

30

28

25

24

23

21

23

23

23

23

23

23

24

20

19

90

1.400

926

304

229

434

457

558

470

634

705

622

525

530

593

8,853

286

17,560

June

666

(310

610

*536

515

405

308

264

233

173

163

170

160

120

63

33

23

16

23

21

13

11

10

9.4

9.4

8.7

8.7

8.7

8.0

' *^

5,137.2

171

10,190

July

6.1

4)9

5.5

5.5

4.9

4.9

4.9

4.9

4.9

*4.9

4.9

4.9

4.4

3.9

379

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

4.4

4.4

136.8

4.41

271

Aug.

4.4

474

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3 9 3'. 9

121.9

3.93

242

Sept.

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

3.9

4.9

T74

3.9

3.9

3.9

3.9

3.9

3.9

*5.4

3.4

3.4

3.4

3.4

3 9

116.0

3.87

230

Calendar year 1956: Max 854 Mln 2.5 Mean 100 Ac-ft 72,930

Water year 1956-57: Max 1,400 Mln 2.5 Mean 51.9 Ac-ft 37,570

* Discharge measurement made on this day.
370 SAN JOAQUIN RIVER BASIN

Middle Fork Mokelumne River at West Point, Calif.

Location. Lat 38°23'23", long 120°31'32", in SE^NE^ sec. 10, T. 6 N., R. 13 E. , on right

bank 200 ft downstream from highway bridge, 0.6 mile south of West Point, and

4.5 miles upstream from South Fork. 

Drainage area. 67.2 mi.

Records available. October 1911 to September 1957. 

Gage. Water-stage recorder. Altitude of gage is 2,450 ft (from topographic map)

to Oct. 6, 1926, staff gage at site 1,200 ft upstream at different datum. Oct

to Aug. 18, 1928, staff gage at present site and datum. 

Average discharge. 45 years (1912-57), 59.0 cfs (42,710 acre-ft per year). 

Extremes. Maximum discharge during year, 859 cfs Feb. 24 (gage height, 4.62 ft); minimum

dally, 7 cfs Aug. 17-20.

1911-57: Maximum discharge, 4,320 cfs Dec. 23, 1955 (gage height, 8.98 ft); no

flow Aug. 23 to Sept. 14, 1931, Sept. 9, 1934.

Revisions.--The figures of maximum discharge for some water years have been revised

as shown in the following table. They supersede figures published in the water-supply

papers indicated.

Prior 

6, 1926,

WSP

651 

671

811

Water 

year

1927 

1928 

1936

Date

Feb. 

Mar. 

Feb.

18, 1927 

25, 1928 

22, 1936

Discharge 

(cfs)

930 

2,200 

2,520

Gage height 

(feet!

4.7 

6.82 

7.22

Remarks. Records good except those for periods of backwater from temporary dam or no 

gage-height record, which are fair. Flow slightly regulated by Calaveras Reservoir 

(capacity, 1,740 acre-ft), 6 miles above station, beginning in January 1940. Several 

small diversions above station.

Revisions.--Revised figures of discharge, In cubic feet per second, for periods in the 

water years 1919 and 1920, superseding those published In WSP 511 are given herewith:

May 5, 1919........... 92

Feb. 24, 1920........... 14

June 19, 1920........... 14

Month Maximum

127

454

454

98

675

Minimum

25

1.0

1.0

1.0

Mean

33.3

33.3

38.0

Runoff In 

acre-feet

24,100

865

27,600

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

25

15

15

*18

15

15

15

16

16

15

19

17

16

16

16

16

15

15

15

15

15

14

22

20

17

19

30

21

20

36

40

579

18.7

1,150

Nov.

25

23

22

21

20

20

22

27

30

3S

29

28

28

28

27

27

27

27

27

27

27

27

26

25

24

24

23

23

23

23

760

25.3

1,510

Dec.

23

23

22

22

*40

29

24

23

24

24

25

25

24

29

24

23

22

22

22

21

21

21

22

21

21

21

21

21

20

21

20

721

23.3

1,430

Jan.

19

19

20

20

21

21

19

22

20

21

21

23

63

3S

30

26

25

23

23

38

30

*28

25

25

26

27

22

24

23

23

25

791

25.5

1,570

Feb.

25

26

24

25

24

25

30

50

39

35

53

45

45

45

42

40

41

39

38

38

47

49

270

392

571

284

*215

167

2,724

97.3

5,400

Mar.

144

130

122

197

650

396

257

218

280

198

162

210

172

144

167

172

141

130

121

112

105

97

92

89

86

84

81

79

M

103

100

5,107

165

10,130

Apr.

*108

92

88

95

88

85

79

77

75

72

70

68

67

102

82

76

84

94

85

82

77

75

72

70

68

65

64

63

626~2~

2,347

78.2

4,660

May

62

68

66

62

62

60

61

62

63

63

63

63

*60

63

63

58

56

236

346

2$5

267

220

191

165

148

133

122

113

102

98

95

3,590

116

7,120

June

88

85

79

76

72

69

67

65

67

69

63

62

60

57

57

56

52

45

41

38

39

37

34

30

25

22

22

18

20

20

1,535

51.2

3,040

July

19

19

18

15

16

14

13

12

11

11

10

8.8

12 8.6

12

11

13

12

10

9.5

9.5

9.5

11

12

9.1

9.5

8.8

9.5

9.5

12

 9.5

364.8

11.8

724

Aug.

8.0

8.0

8

8

8

8

8.5

^5

8.5

8.5

8

8

8

8

7.5

.5

 '

.5

.5

8

8

8

8

8.5

8.5

 59

9

248.0

8.00

492

Sept.

9

8.5

8.5

8.5

8

8

8

7.5

7.3

5T

*8.0

8.8

8.8

9.1

9.1

9.1

11

10

9.5

9.8

9.8

9.1

8.8

8.8

*8.8

9.8

9.8

11

13

15

278.8

9.29

553

Calendar year 1956: Max 876 Mln 9.1 Mean 104 Ac-ft 75,160

Water year 1956-57: Max 630 Mln 7 Mean 52.2 Ac-ft 37,780

sak discharge (base, 400 cfs). Feb. 24 (12 p.IT 

(4.40 ft); May 18 (6 p.m.) 480 cfs (3.54 ft).

* Discharge measurement made on this day.

Note. Backwater from temporary dams Oct. 1-4, May 4-18, June 13 to Sept. 30 (no gage-height 

record Aug. 3 to Sept. 8); discharge estimated on basis of records for South Fork Mokelumne River 

near West Point.
SAN JOAQUIN RIVER BASIN 371

South Fork Mokelunrne River near West Point, Calif.

Location. Lat 38°22'06", long 120°32'40", in SE^SEv sec. 16, T. 6 N., R. 13 E., on right 

bank 500 ft upstream from highway bridge, 2.5 miles upstream from mouth, and 2.4 miles 

southwest of West Point. Prior to Sept. 19, 1957, at site 1,100 ft downstream.

Drainage area. 73.8 sq mi.

Records available.--October 1933 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,950 ft (from topographic map). Prior 

£o Sept. 19, 1957, at site 1,100 ft downstream at different datum.

Average discharge.--24 years, 84.8 cfs (61,390 acre-ft per year).

Extremes. Maximum discharge during year, 893 cfs Feb. 24 (gage height, 6.18 ft); minimum, 11 cfs Sept. 9.

1933-57: Maximum discharge, 6,920 cfs Dec. 23, 1955 (gage height, 14.8 ft), from 

floodmarks), from rating curve extended above 1,800 cfs on basis of slope-area determination of peak flow; no flow Aug. 6, 7, Aug. 12 to Sept. 26, 1934.

Remarks. Records good except those for period of no gage-height record, which are poor. 

Small diversions above station for irrigation and domestic use.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, in

cubic feet per second) 

(Shifting-control method used Oct. 1-5, July 8 to Sept. 18)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 18

3.-6 

3.8 

4.0 

4.3

4.6 

5.0 

5.5 

6.0

156

295

525

785

3.4 

3.6 

3.8 

4.0 

4.2

8.0

18

32

51

77

4.6 

5.0 

5.5 

6.0

146

265

500

785

Sept. 19-30

2.3 12

2.4 16

2.5 21

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

19

19

18

*21

23

21

21

27

25

23

28

25

23

22

22

22

22

20

20

21

21

21

40

a30

a25

a30

a40

a30

a30

a40

*a55

804

25.9

1,590

Nov.

35

51

29

28

28

27

27

27

27

26

26

26

26

26

27

27

26

26

26

26

26

26

26

26

26

26

25

26

25

11

803

26.8

1,590

Dec.

24

24

24

28

*61

41

31

28

28

28

31

33

31

30

28

27

26

26

25

32

24

23

24

23

23

22

24

24

22

22

22

860

27.7

1,710

Jan.

22

21

22

21

23

23

22

26

23

24

24

28

~65 171

45

37

34

31

30

69

50

*40

35

34

35

35

29

38-

38

42

42

1,179

38.0

2,340

Feb.

42

41

38

37

36

32

33

71

56

45

69

69

68

69

62

59

61

56

53

49

62

62

359

534

657

336

*248

192

3,496

125

6,930

Mar.

173

160

146

186

704

550

346

254

344

244

201

227

190

165

181

190

158

146

138

128

122

115

108

103

102

97

95

94

105

121

112

6,005

194

11,910

Apr.

*119

105

98

97

94

90

88

83

82

77

77

74

71

108

89

80

90

105

97

92

88

86

86

83

80

77

74

71

70

69

2,600

86.7

5,160

May

67

76

70

64

62

61

61

63

67

67

67

66

*61

67

66

61

57

265

440

346

341

265

220

181

158

144

128

119

112

105

97

4,024

130

7,980

June

90

M

82

76

71

69

67

66

69

70

63

61

59

57

55

55

53

*51

50

48

47

46

47

47

44

41

40

38

39

38

1,725

57.5

3,420

July

37

3T

34

31

31

30

29

30

30

32

31

32

30

29

30

27

26

27

27

30

31

29

29

29

30

28

26

26

25 

*22

22

904

29.2

1,790

Aug.

21

22

21

22

23

22

21

23

22

23

23

22

21

20

22

20

21

18

18

16

18

18

17

17

16

18

16

18

16 

19

20

614

19.8

1,220

Sept.

19

16

16

16

15

16

14

14

13

12_

*12

14

14

14

12

13

14

16

16

16

15

15

14

13

*14

14

15

17

18 

19

446

14.9

885

Calendar year 1956: Max 1,020 Min 16 Mean 120 Ac-ft 87,240

Water year 1956-57: Max 704 Min 12 Mean 64.3 Ac-ft 46,520

Peak discharge (base, 500 cfs). Feb. 24 (12 p.m.) 893 cfs 

(6.08 ft); May 18 (8:30 p.m.) 767 cfs (5.97 ft).

5.18 ft); Mar. 5 (l p.m.) 833 cfs

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of 1 discharge measurement, weather records, 

and records for Middle Fork Mokelumne River near West Point.

510529 O - 59 - 25
372 SAN JOAQUIN filVER BASIN 

Mokelumne River near Mokelurane Hill, Calif.

Location.--Lat 38°18'40", long 120°43'10", in sec. 1, T. 5 N., R. 11 E., on left bank 

Just downstream from highway bridge, 1.2 miles northwest of Mokelumne Hill and Smiles 

downstream from confluence of North and South Forks.

Drainage area. 538 sq mi.

Records available. January to June 1901, May 1903 to December 1904, November 1927 to 

September 1957. Published as "at Electra" 1901, 1903-4.

Gage. Water-stage recorder. Datum of gage is 589.88 ft above mean sea level (levels by 

Division of Highways, Department of Public Works, State of California). Jan. 1, 1901, 

to June 30, 1901, and May 11, 1903, to Dec. 31, 1904, staff gage at site 3 miles 

upstream at different datum. Nov. 10, 1927, to Aug. 26, 1952, water-stage recorder at 

site 40 ft upstream at same datum.

Average discharge . 29 years (1928-57), 944 cfs (683,400 acre-ft per year).

Extremes.--Maximum discharge during year, 8,440 cfs May 18 (gage height, 9.62 ft); minimum daily, 258 cfs Mar. 25.

1903-4, 1927-57: Maximum discharge, 33,700 cfs Dec. 3, 1950 (gage height, 18.5 ft); 

minimum observed, 5 cfs Aug. 13-15, 17, 18, 1904.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Plow regulated by Salt Springs Reservoir beginning in 1931 (see p. 364), several 

smaller reservoirs, and four powerplants. Diversions above station for irrigation and 

domestic use.

Revisions (water years). WSP 1445: 

1945(M).

1903-4, 1928(M), 1936(M), 1938(M), 1940(M), 1943(M)

Rating table, water year 1956-57 (gage height, In feet, and 

discharge, in cubic feet per second)

2.5 

3.0 

3.5 

4.0

235

409

640

940

5.0 

6.0 

7.0 

8.0

1,820

2,930

4,220

5,680

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

EO

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Ao-ft

Oct.

586

576

452

527

594

566

535

542

*519

601

578

640

533

450

565

590

668

695

722

728

728

582

744

717

690

690

762

734

712

854

19,696

635

39,070

Nov.

628

744

739

668

734

734

672

695

695

739

717

739

678

739

717

734

739

739

739

688

585

739

717

739

739

717

695

a700

a700

a700

21,308

710

42,260

Dec.

a730

a750

a700

aSOO

a740

a730

750

750

712

662

695

750

734

734

739

690

728

734

651

734

695

695

734

712

684

774

725

716

698

720 

717

22,383

722

44,400

Jan.

651

624

596

638

652

600

528

684

526

559

736

538

650

621

588

472

564

458

636

543

588

570

640

594

673

622

393

483

657

464 

414

17,962

579

35,630

Feb.

*487

337

420

514

557

600

638

688

701

655

749

796

751

674

710

559

348

484

358

366

351

300

944

1,430

2.570

1,350

1,150

848

20,335

726

40,330

Calendar year 1956: Max 6,850 Mln 250

Mar.

575

587

564

814

2.400

2,190

1,500

1,110

1,300

912

788

996

813

704

748

695

661

636

555

590

440

481

457

507

258

432

461

469

422

564 

539

24,168

780

47,940

Apr.

*717

816

851

740

811

692

493

674

822

877

842

868

698

456

687

603

639

649

589

446

494

595

863

835

838

"SSS 895

444

684

465

20,751

692

41,160

May

494

832

836

607

478

541

738

819

865

681

664

602

564

714

879

668

848

1,360

5.190

2,800

2,420

2,070

1,480

1,240

1,440

1,400

1,900

2,570

3,890

3 29O 

*z',7BO

46,660

1,505

92,550

June

,530

.610

,290

,210

,210

3,840

2,830

3,050

2,850

2,300

1,880

2,250

2-, 080

2,110

1,390

1,540

1,270

1,420

1,540

1,670

1,400

1,310

1,170

1,250

1,090

1,120

940

982

846

719

64,697

2,157

128,300

July

*721

650

559

457

703

408

413

565

434

555

524

567

671

415

435

681

525

588

527

599

458

572

536

568

558

567

468

472- 313

456 

470

16,435

530

32,600

Aug.

457

518

520

373

530

538

522

512

508

497

404

495

563

525

504

603

54TT

382

568

438

517

505

501

507

490

553

492

493

424

470

313

15,268

493

30,280

Sept.

488

458

439

321

259

350

334

515

545

645

543

549

605

574

542

592

618

548

603

566

593

512

606

568

581

541

582

548

500

616

15,739

525

31,220

Mean 1,516 Ac-ft 1,100,000

Water year 1956-57: Max 5,190 Mln 258 Mean 837 Ac-ft 605,700

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records of computed Inflow Into Pardee 

Reservoir.
SAN JOAQUIN RIVER BASIN 373

Mokelumne River at Laneha Plana, Calif.

Location. Lat 38°13'25", long 120°53'20", in SVf£ sec. 4, T. 4 N. , R. 10 E. , on left 

bank 1 mile east of Lancha Plana, 3 miles downstream from Pardee Dam, and 5 miles 

upstream from Camache Creek.

Drainage area. 584 sq mi.

Records available.--June 1926 to September 1957.

Gage. Water-stage recorder. Datum of gage is 158.95 ft above mean sea level (levels by 

East Bay Municipal Utility District).

Average discharge. 28 years (19S9-57) , since start of East Bay aqueduct diversion, 

860 cfs (622,600 acce-ft per year).

Extremes. Maximum discharge during year, 4,960 cfs June 2 (gage height, 8.31 ft); minimum 

daily, 58 cfs Feb. 17.

1926-57: Maximum discharge, 26,700 cfs Nov. 21, 1950 (gage height, 20.1 ft); minimum daily, 7 cfs Nov. 21, 1929.

Remarks. Records excellent. Flow regulated by Pardee Reservoir beginning Mar. 9, 1929 

(usable capacity, 193,100 acre-ft), Salt Springs Reservoir beginning March 1931 (see 

p. 364), several smaller reservoirs, and four powerplants. Of several diversions 

above station, East Bay Municipal Utility District aqueduct is largest not returned 

to river. Records of chemical analyses for the water year 1957 are given in WSP 1523.

Revisions (water years) . WSP 1215: 1928(M).

Rating table, water year 1956-57 (gage height, in feet, and 

discharge, in cubic feet per second)

Oct. 1 to Dec. 31 Jan. 1 to Sept. 30

3.4 

3.9

515

770

2.0 

2.5 

3.0 

3.5

56

161

320

545

4.0 

5.0 

8.0

830

1,540

4,590

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Ac-ft

Oct.

581

597

543

557

601

595

584

632

630

630

582

582

582

587

595

602

606

*608

590

591

596

592

603

606

600

600

601 

596

598

600

598

18,495

597

36,680

Nov.

593

615

599

578

641

598

715" 715

715

715

715

715

715

715

715

715

715

715

715

715

715

715

715

715

715

715

715 

715

715

715

20,784

693

41,220

Dec.

715

715

*715

720

715

710

715

715

715

715

715

715

715

704

715

715

710

710

710

710

710

710

710

710

710

710

710 

710

710

710

710

22,074

712

43,780

Jan.

365

379" 301

354

366

375

371

398

324

351

351

353

347

342

354

356

346

345

341

360

348

359

396

327

324

347

335 

345

345

375

322

10,902

352

21,620

Feb.

137

121

195

122

*120

126

112

 130

96

128

124

124

130

117

122

61

58

13T

139

115

142

153

136

207

167

154

154 

388

-

3,915

140

7,770

Mar.

710

710

710

728

1,270

1,870

1,870

*1,900

1.920

1,210

710

716

710

710

710

710

710

710

710

710

710

710

704

704

704

704

684 

704

704

704

704

27,740

895

55,020

Apr.

694

704

ToT

704

704

704

704

*699

699

699

699

699

699

699

699

699

699

694

694

694

694

694

694

694

688

688

694 

694

694

694

20, 918

697

41,490

May

67Z

654

694

694

694

694

694

694

694

694

694

688

677

694

694

694

694

694

694

699

699

699

699

699

699

704

704 

704

944

2,130

2.810

25,331

817

50,240

June

3,250

4,320

4.440

3,450

3,280

3,060

3,260

1,690

2,540

2,500

1,120

1,870

1,900

1,850

1,380

1,190

*890

1,170

1,260

1,320

1,270

1,170

830

938

938

902

842 

800

770

682

54,882

1,829

108,900

July

533

533

532

532

533

529

530

541

544

543

542

541

542

542

542

531

539

539

541

537

537

537

538

*538

554

537

537 

538

534

555

558

16,719

539

33,160

Aug.

532

526

537

542

554

560

553

555

555

553

554

534

542

538

546

575

372

569

569

558

*543

540

551

554

564

554

558 

559

552

534

571

17,104

552

33,930

Sept.

512

512

515

518

517

507

504

513

514

517

 496

530

513

508

506

508

510

508

512

518

515

514

518

514

519

516

525 

524

SsF

15,398

513

30,540

Calendar year 1956: Max 4,970 Mln 457 

Water year 1956-57: Max 4,440 Mln 58

Mean 1,450 

Mean 697

Ac-ft 1,052,000 

Ac-ft 504,400

* Discharge measurement made on this day.
374 SAN JOAQUIN RIVER BASIN

Mokelumne River near Clements, Calif.

Location. Lat 38°12'25", long 121°05'20", in NW£ sec. 15, T. 4 N., R. 8 E. , on left bank 

700 ft upstream from highway bridge, 1 mile north of Clements, and 4 miles downstream 

from Murphy Creek.

Drainage area.--630 sq mi.

Records available. October 1904 to September 1951 and July 1955 to September 1957 in 

reports of Geological Survey. In reports of California Department of Water Resources 

1951-55.

Gage. Water-stage recorder. Datum of gage is 67.16 ft above mean sea level (levels by 

East Bay Municipal Utility District). Oct. 28, 1904, to Apr. 18, 1926, staff gage at 

bridge 700 ft downstream at datum 1.93 ft higher. Apr. 19, 1926, to Dec. 21, 1930, 

water-stage recorder 75 ft downstream from bridge, at datum 0.07 ft lower.

Average discharge. 24 years (1904-28), 1,111 cfs (804,300 acre-ft per year); 24 years 

(1929-51, 1955-57), 866 cfs (627,000 acre-ft per year). Storage and diversion by 

East Bay Municipal Utility District began March 1929.

Extremes. Maximum discharge during year, 5,120 cfs June 3 (gage height, 11.75 ft); minimum daily, 62 cfs Feb. 18.

1904-51; 1955-57: Maximum discharge, 28,800 cfs Nov. 21, 1950 (gage height, 

24.40 ft); no flow July 9, Aug. 15, 20-23, 1924.

Remarks. Records good. Concerning regulation and diversions, see Remarks for Mokelumne 

River at Lancha Plana, preceding page; between Clements and Lancha Plana are several 

small diversions for irrigation.

Revisions (water years). WSP 751: Drainage area. WSP 881: 1905-9 (yearly summaries 

only). WSP 1445:1911, 1917(M), 1925(M).

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

1.6 

2.0 

3.0

52

128

430

6.0 

12.0

1,630

5,310

Discharge ublc feet per second, water year Octoberl956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

524

556

524 

532

574

563

549

602

652

602

542

542

542

542

556

577

563

577

552

556

563

549

574

574

566

566

566

566

566

580

563

17,410

562

34,530

Nov.

*563

574

574 

6T9- 552

577

703

703

703

706

706

703

703

706

706

706

706

706

703

710

710

710

710

710

710

710

714

TIC

710

710

20,433

681

40,530

Dec.

710

710

710

714

717

703

706

710

710

706

706

703

703

700

703

703

703

703

703

703

700

703

703

700

700

696" 696

696

696

696

696

21,808

703

43,260

Jan.

402

256

3T9

384

307

353

360

388

356

346

350

353

339

342

346

332

3 5O

342

336

364

342

350

406

320

339

367

332

336

336

332

10,724

346

21,270

Feb.

250

129

125 

129

*122

121

127

105

129

125

128

124

124

133

126

131

63

*62 11B"

149

138

147

189

155

288

178

169

287

-

4,098

146

8,130

Mar.

812

721

728 

824

1,470

2,020

1,930

*1,910

1,960

1,170

738

734

720

717

717

717

714

710

710

706

706

703

703

703

703

703

7CO~ 686

703

700

700

28,438

917

56,410

Apr.

'6~9S 686

696 

696

696

696

696

696

*696

696

692

692

689

706

696

692

706

720

703

700

696

696

692

689

689

689

689

689

686

686

20,847

695

41,350

May

668

e;8"9

686 

686

682

*682

678

678

682

682

682

678

672

682

682

678

678

700

703

706

703

703

703

703

703

703

703

700

793

1,800

2j590

24,478

790

48,550

June

3,090

3,900

4.810 

3,636

3,250

3,080

*2,420

1,610

2,300

2,420

1,440

1,450

1,940

1,750

1,430

1,160

952

1,040

1,230

1,280

1,240

1,130

880

884

936

876

832

780

756

389

53,085

1,770

105,300

July

535

524

521

518

52T

521

521

535

535

535

535

535

535

532

532

532

532

524

524

528

528

528

528

528

542

518

518

524

*518

546

570

16,423

530

32,570

Aug.

493

5lT

528 

528

535

546

528

528

528

521

524

518

524

514

521

549

549

549

549

542

*524

514

532

524

546

535

542

549

535

514

565

16,466

531

32,660

Sept.

490

504

496 

496

496

490

490

496

490

496

*500

496

500

482

496

504

504

493

496

507

504

504

500

504

507

507

510

507

52"4 468

14,957

499

29,670

Calendar year 1956: Max 5,390 

Water year 1956-57: Max 4.81O

Mean 1,418 

Mean 683

Ac-ft 1,029,000 

Ac-ft 494,2OO

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 375

Woodbrldge Canal at Woodbrldge, Calif.

Location.--Lat 38°09'10", long 121°18'00", in SE£ sec. 34, T. 4 N., R. 6 E., on right 

bank at Woodbridge at point of diversion.

Records available.--April 1926 to September 1957.

Gage. Differential water-stage recorder and gate-opening recorder. Datum of gage is 

3~2.18 ft above mean sea level (levels by East Bay Municipal Utility District). Prior 

to Mar. 15, 1931, water-stage recorder at site 0.2 mile downstream at different datum.

Average discharge.--31 years, 136 cfs (98,460 acre-ft per year).

Extremes. 1926-57: Maximum daily discharge, 482 cfs July 8, 1953; no flow during part 

of each year.

Remarks. Records good. Discharge computed from records of gate openings and effective 

head as shown by recorders. Canal diverts from Woodbridge Reservoir on Mokelumne 

River in sec. 34, T. 4 N., R. 6 E., for irrigation of lands south and west of Woodbridge .

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

211

21T

192

184

186

175

151

145

135

137

149

170

171

157

152

166

*170

172

159

149

134

132

119

83

86

90

87

77

7O

74

74

4,368

141

8,660

Nov.

74

74

76

76

69

*60

53

12

O

V

0

0

O

0

O

O

O

o

0

o

0

0

0

0

0

0

0

o

o

0

494

16.5

980

Dec.

(*)

O

O

o

Jan.

(*)

0

0

0

Feb.

(»)

-

0

0

0

Mar.

0

V

0

0

0

0

0

0

O

0

0

O

O

O

0

o

0

0

o

0

0

0

0

o

*0

15

78

165

163

T50~ 185

786

25.4

1,56O

Apr.

178

186

211

223

220

216

209

216

*239

241

242

229

231

192

175

172

134

91

 9-9 90

99

99

113

154

179

234

244

249

262

264

5,691

190

11,290

May

243

202

216

230

226

240

*248

264

255

250

236

223

217

223

218

216

257

198

141

143

136

126

T23" 121

134

142

201

237

254

244

248

6,415

207

12,720

June

246

234

2*5

248

246

*269

274

26O

274

319

3O8

299

303

314

320

294

341

342

334

337

337

337

328

323

338

333

343

353

343

343

9,185

3O6

18.22O

July

332

373

374 3~55

366

368

361

361

358

355

343

341

324

314

33T

332

360

357

346

332

332

345

347

349

342

331

326

326

342

*351

356

1O,733

346

21,29O

Aug.

36O

361

755

337

339

345

343

337

339

328

324

33O

329

326

316

305

292

293

309

317

314

' *317

303

294

281

289

289

3OO

3OO

290

269

9,826

317

19,49O

Sept.

246

259

262

258

252

231

245

264

272

2BT

257

*242

252

221

2O3

197

200

218

219

232

209

18O

192

178

178

178

178

154

124

117

6,475

216

12,840

Calendar year 1956: Max 438 Min 0 Mean 171 Ac-ft 124,400

Water year 1956-57: Max 374 Min O Mean 148 Ac-ft 107,000

Discharge measurement or observation of no flow made on this day.
376 SAN JOAQUIN RIVER BASIN

Mokelumne River at Woodbridge, Calif.

Location. Lat 38°09'30", long 121°18'10", in NE^ sec. 34, T. 4 N., R. 6 E., on left 

bank at Woodbridge, 0.3 mile downstream from county highway bridge and 0.4 mile downstream from dam and canal intake of Woodbridge Irrigation District.

Drainage area. 644 sq mi.

Records available.--May 1924 to September 1957 (for 1924-25, low-water records only).

Gage. Water-stage recorder. Datum of gage is 14.9 ft above mean sea level (levels by 

East Bay Municipal Utility District). May 1924 to July 1928, about 100 ft downstream 

from bridge at datum about 4 ft higher; July 1928 to March 1931, 400 ft downstream from 

bridge at about same datum.

Average discharge. 28 years (1929-57), since start of diversion through East Bay Municipal Utility District aqueduct, 680 cfs (492,300 acre-ft per year).

Extremes.--Maximum discharge during year, 4,350 cfs June 4 (gage height, 19.59 ft); minimum daily, 60 cfs Feb. 18.

1924-57: Maximum discharge, 27,000 cfs Nov. 22, 1950 (gage height, 29.58 ft), from 

rating curve extended above 6,000 cfs on basis of contracted-opening determination of 

peak flow; minimum daily, 1.4 cfs Sept. 19, 20, 22, 1927.

Remarks. Records good. Concerning regulation and diversions see Remarks for Mokelumne 

River at Lancha Plana; between Woodbridge and Lancha Plana are many additional diversions for irrigation, including Woodbridge Canal (see p. 375). Records of chemical 

analyses and water temperatures for the water year 1957 are given in WSP 1523.

Cooperation. Thirteen discharge measurements furnished by California Department of 

Water Resources.

Revisions. WSP 751: Drainage area.

Rating tables, water year 1956-57 (gage height, in feet, and discharge,

in cable feet per second) 

(Shifting-control method used Feb. 25 to Mar. 1, June 23-27)

Oct. 1 to Mar. 1 Mar. 2 to Sept. 30

4.4 

5.0

6.0 

7.0

57

100

200

343

8.0 9.0'

10.0

11.0

540

764

998

1,240

4.4 

5.0 

6.0 

7.0 

9.0

72

116

240

385

812

12.0 1,540

15.0 2,350

18.0 3,520

20.0 4,600

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

219

243

333

220

305

346

364

371

449

421

391

330

322

338

360

350

*348

353

350

364

382

391

425

476

459

*453

463

463

468

482

480

11,719

378

23,240

Nov.

457

TTO

468

472

474

*522

679

1.040

746

723

711

706

706

704

706

706

706

706

706

704

709

709

706

704

704

704

*704

704

702

702

20,160

672

39,990

Dec.

700

697

695

*697

709

690

690

693

693

690

688

688

688

688

681

690

688

688

686

688

688

686

686

684

681

684

*684

681

684

679

679

21,343

688

42,330

Jan.

615

35S

309

332

337

319

329

329

337

311

305

313

337

309

309

313

298

308

308

324

317

301

306

333

300

3OO

305

*290

295

301

3OO

1O.O4O

324

19,910

Feb.

295

TTS

131

122

113

*110

112

105

105

109

110

104

101

102

101

102

84

*60

75

107

109

110

125

126

*230

219

181

172

3,592

128

7,120

Calendar year 1956: Max 4,780 Min 56

Mar.

479

702

699

743

992

1,700

*1,800

1,790

1.820

1,810

1,010

821

784

768

764

761

754

750

745

741

*738

736

734

732

732

365

336

495

527

515

513

26,856

866

53,270

Apr.

515

503

487

451

453

447

449

447

*413

394

367

388

385

487

479

467

569

619

58T

547

562

*562

550

477

443

395

400

397

356 3"ST

13,957

465

27,680

May

409

420

415

366

404

382

*362

362

362

367

390

394

394

374

379

382

304

529

515

515

513

511

519

511

503

499

361

*382

362

884

1.710

14,780

477

29,320

June

2,210

2,590

3,450

*4,150

3,290

*2,940

2,580

1,740

1,670

2,010

1,850

945

1,640

1,460

1,440

980

837

539

990

920

959

872

690

413

511

*465

394

342

349

314

43,520

1,451

86,320

July

208 T30"

104

83

86

84

85

88

81

80

82

86

92

105

107

92

82

85

82

89

151

89

92

*86

79

84

88

98

111

*103

102

3,014

97.2

5,980

Aug.

101

76

73

FT

97

103

109

106

91

102

119

116

97

91

98

181

171

176

163

138

124

116

128

156

188

*181

159

145

148

152

169

3,961

128

7,860

Sept.

251

171

156

147 iis

167

161

161

163

161

170

*183

185

205

227

254

239

229

240

218

240

310

271

264

*260

269

261

337

343

332

6,723

224

13,330

Mean 1,243 Ac-ft 9O2.000

Water year 1956-57: Max 4,130 Min 60 Mean "492 Ac-ft 356^400

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 377

Dry Creek near Gait, Calif.

Location. Lat 38°14'48", long 121°13'03", in NE^ sec. 32, T. 5 N., R. 7 E., on right 

bank of main channel just downstream from county road bridge, 2 miles downstream from 

Coyote Creek and 4 miles east of Gait.

Drainage area. 325 sq mi.

Records available . December 1926 to September 1933, October 1944 to September 1957.

Gage. Water-stage recorder. Datum of gage is 52.83 ft above mean sea level (levels by 

TJast Bay Municipal Utility District). Dec. 4, 1926, to Sept. 30, 1933, at site 4 miles 

downstream at different datum. Oct. 1, 1944, to Sept. 30, 1945, at present site at 

datum 3.00 ft higher.

Average discharge. 19 years (1927-33. 1944-57), 103 cfs (74,570 acre-ft per year); median 

of yearly mean discharges, 69 cfs (50,000 acre-ft per year).

Extremes. Maximum discharge during year, 3,600 cfs Mar. 5 (gage height, 13.26 ft); no 

flow for several months.

1926-33, 1944-57: Maximum discharge, 17,000 cfs Dec. 24', 1955 (gage height, 

14.55 ft); no flow for several months each year.

Remarks. Records good. Many small diversions above station for irrigation. Total

storage of many small reservoirs about 1,000 acre-ft, and total number of acres irrigated approximately 500.

Cooperation. Ten discharge measurements furnished by California Department of Water 

Resources.

Rating tables, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used Feb. 25)

Oct. 1 to Feb. 25 Feb. 25 to Sept. 30

2.2

2.3

2.4

2.5

2.6

2.7

2.9

3.1

3.5

0

.6

1.3

2.0

3.5

6.0

14

25

53

4.0

5.0

6.0

8.0

10.0

12.0

12.5

13.0

92

172

270

498

767

1,060

1,200

1,600

2.3

2.4

2.5

2.6

2.7

2.9

3.1

3.5

0

.2

1.5

4.2

9.2

21

33

65

4.0

5.0

6.0

8.0

11.0

12.0

12.8

111

240

398

728

1,290

1,720

2,600

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18

19

20

El

22

23

E4

25

26

27

E8

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

(»)

0

0

0

Nov.

(»)

(*)

(»)

0

0

0

Dec.

(»)

(*)

0

0

0

Jan.

0

*(J

*0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

40

42 »T5

10

5.8

20

36

*23

14

9.2

6.4

224.4

7.24

445

Feb.

4.8

4.5

5.0

*5.5

4.5

3.4 

3.2

TJ5

28

35

24

27

26

21

18

13

9.5

 8.1

6.4

5.2

7.8

34

64

241

*1,390

*596

*440

*267

_

3,295.9

118

6,540

Mar.

*589

342

236

593

2,530

2.550 

924

 553

698

662

448

433

387

328

280

336

260

196

168

144

*120

104

94

87

80

75

69

64

m

70

72

13,554

437

26,880

Apr.

78

73

60

57

52

50 

47

45

*39

36

36

33

32

48

97

65

54

125

151

TI3

89

*76

66

59

52

46

39

35

31

28

1,812

60.4

3,590

May

26

25

26

26

22

17 

*15

12

7.2

S7T

15

12

8.7

8.2

12

16

9.2

16

686

5BT

476

313

213

154

119

91

74

60

53

48

43

3,173.0

102

6,290

June

36

3T

26

21

12

5.7 

2.6

.7

.2

.3

.8

0

5

*o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

136.3

4.54

270

July

(»>

0

0

0

Aug.

(»>

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 7,780 

Water year 1956-57: Max 2,550

Mean 187 

Mean 60.8

Ac-ft 135,500 

Ac-ft 44,020

Peak discharge (base, 800 cfs).--Feb. 25 (12 m.) 2,170 cfs (12.50 ft); Mar. 5 (10:30 p.m.) 3,600 cfs 

(13.26 ft)j Mar. 9 (9 p.m.) 1,020 efs (9.72 ft); May 19 (10 a.m.) 964 efs (9.39 ft).____________

* Discharge measurement or observation of no flow made on this day.
378 SAN JOAQUIN RIVER BASIN

Camp Creek near Somerset, Calif.

Location.--Lat 38°39'26", long 120°39'46", in SWij- sec. 4, T. 9 N. , R. 12 E. , on right bank 

0.2 mile upstream from mouth, 1.3 miles northeast of town of Somerset, and 5.6 miles 

south of Camino.

Drainage area. 62.7 sq mi.

Records available.--February to May 1924, October 1954 to September 1957. Published as 

"near Pleasant Valley" February to May 1924.

Gage. Water-stage recorder. Altitude of gage is 1,820 ft (from topographic map). Feb. 1 

ro May 31, 1924", staff gage at site about 0.2 mile upstream at different datum.

Extremes. Maximum discharge during year, 682 cfs Feb. 25 (gage height, 5.74 ft); minimum, 

2.3 cfs Nov. 9-11.

1924, 1954-57: Maximum discharge, 6,020 cfs Dec. 23, 1955 (gage height, 12.48 ft); 

minimum, 0.7 cfs Aug. 14, 1955.

Remarks.--Records good except those below 20 cfs, which are fair. Flow partly regulated 

by Jenkinson Lake (usable capacity, 40,570 acre-ft). Water is released from Jenkinson Lake through Camino conduit for irrigation' and domestic supply in North Fork 

Cosumnes and South Fork American River basins.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

2.0 

2.2

1.3 

2.5 

4.0 

8.1

14-

23

2.6

3.0 

3.5 

4.0 

5.0

145

230

454

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

g

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

tt

(ttt)

Oct.

4.4

4.4

4.4

4.5

4.5

4.5

4.7

5.5

*5.5

5.3

8.1

8.3

6.3

6.1

5.7

5.5

5.5

5.3

5.3

5.3

5.3

5.1

11

14

7.8

7.8

19

14

9.5

17

29

248.6

8.02

493

115

0

-70

Nov.

14

TT

5.9

3.4

3.0

2.9

3.0

3.2

2.5

2.3

3.0

3.5

4.2

3.5

3.2

3.2

3.0

3.0

2.9

2.9

2.9

2.8

2.8

2.8

2.9

2.9

2.9

2.9

2.9

2.9

112.3

3.74

223

104

45

+52

Dec.

2.9

?79

3.0

3.8 »ie

7.6

4.5

3.5

3.4

3.4

3.8

4.5

4.4

4.0

3.7

3.5

3.4

3.4

3.2

3.2

3.2

2.9

3.0

3.0

3.0

3.0

2.9

3.0

2.9

2.9

3.0

122.9

3.96

244

52

0

+499

Jan.

2.9

279

2.9

2.9

2.9

3.2

3.0

3.7

3.7

3.4

3.4

3.8

24

13

6.7

4.9

4.2

3.7

3.4

13

13

10

8.8

8.1

*8.3

8.3

7.6

7.6

7.1

6.9

6.9

204.2

6.59

405

8

0

+955

Feb.

6.9

875

7.8

7.3

6.9

7.1

7.8

23

21

15

29

22

19

15

13

11

10

8.8

8.1

7.8

16

16

45

182

455

264

*228

142

_

1,583.0

56.5

3,140

14

0

+3,675

Mar.

31

26

25

40

301

*4O9

404

312

352

303

250

303

274

230

221

221

187

165

150

137

127

117

107

100

95

91

87

84

100

121

121

5,491

177

10,890

35

0

+2,22Z

Apr.

131

TT4

*104

99

99

131

111

97

90

88

86

82

79

117

127

108

104

121

111

105

97

93

88

84

81

77

Tf

77

77

77

2,932

97.7

5,820

147

0

-200

May

77

99

93

85

83

84

84

84

82

78

79

79

75

80

73

71

7T

154

411

382

347

312

274

228

196

176

163

150

132

118

108

4,528

146

8,980

146

37

+13

June

74

65

77

76

69

55

47

41

39

41

35

29

23

18

14

12

10

5.7

5.1

4.5

»4.4

4.0

4.0

3.7

5.5

3.5

3.8

4.5

4.5

4.5

780.7

26.0

1,550

570

1,479

-752

July

10~4.5

11

10

9.8

9.5

10

9.8

9.0

8.3

7.8

7.1

6.9

6.9

6.9

6.7

6.3

6.1

6.1

6.1

5.9

5.9

5.9

5.5

5.5

5.5

4.9

4.9

4.9

4.9

4.7

217.1

7.00

451

593

2,774

-5,330

Aug.

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.4

4.2

4.2

4.4

*4.4

4.5

4.4

4.4

4.2

4.2

4.2

4.2

4.2

4.0

4.0

4.0

4.0

"578 3.8

4.0

4.0

152.5

4.27

263

346

3,298

-3,686

Sept.

4.0

3.8

3.8

5.8

5.7

4.4

4.7

5.9

7.6

477

4.9

4.9

4.9

4.9

4.9

4.9

5.1

5.1

5.3

5.3

5.1

5.1

5.1

4.9

4.9

5.5

5.5

4.5

4.9

 6.5

148.4

4.95

294

223

1,518

-1,917

Adjusted for evaporation, diversion from, and change in contents of Jenkinson Lake

Mean

Cf am

In.

Ac-ft

8.75

538

7.15

424

12.9

795

22.2

1,568

123

6,829

214

13,147

96.9

5,767

149

9,176

44.5

2,647

4.36

268

3.59

221

1.98

118

Calendar 

Water ye

year 1956: 

ar 1956-57:

Max

Max

1,500 

435

Mln 

Mln

2.3 

2.3

Mean 

Mean

86.4 

45.2

Ac-ft 

Ac-ft

62 

32

,760 

,730

Adjusted

Calendar year 1956: 

Water year 1956-57:

Mean 

Mean

97.8 

57.0

Cfsm 

Cfsn

In. 

In.

Ac-ft 

Ac-ft

70, 

41,

996 

500

Discharge measurement made on this day. 

t Evaporation in acre feet, from Jenkinson Lake; furnished by Bureau of Reclamation. 

Tt Diversion in acre feet, from Jenkinson Lake; furnished by Bureau of Reclamation. 

ttt Change In contents, in acre feet, in Jenkinson Lake; furnished by Bureau of Reclamation
SAN JOAQUIN RIVER BASIN 379

North Fork Cosumnes River near El Dorado, Calif.

Location. Lat 38°35'20", long 120°50'38", in SW£ sec. 35, T. 9 N. , R. 10 E., on downstream side of left abutment of county road bridge, 0.8 mile north of Nashville, 

2.6 miles upstream from mouth, and 6 miles south of El Dorado.

Drainage area . 202 sq mi.

Records available. August 1911 to December 1941, October 1948 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 840 ft (from topographic map). Prior 

ro October 1933, staff gage at site about 1.5 miles upstream at different datum. 

October 1933 to December 1941, water-stage recorder at site 1,000 ft upstream at 

different datum.

Average discharge. 39 years, 207 cfs (149,900 acre-ft per year).

Extremes. Maximum discharge during year, 2,610 cfs Mar. 5 (gage height, 7.91 ft); minimum, 1.5 cfs Aug. 23, 24, 25.

1911-41, 1948-57: Maximum discharge, 15,800 cfs Dec. 23, 1955 (gage height, 

14.8 ft), from rating curve extended above 2,500 cfs on basis of slope-area determination of peak flow; no flow (luring part of 1924, 1926, 1931, 1933-34.

Remarks. Records good except those for periods of shifting control, which are fair. 

Diversions above station for irrigation.

Rating tables, water year 1956-57, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Mar. 5 Mar. 6 to Sept. 30

1.6 

1.8 

2.0 

2.5 

3.0

9.0

16

57

107

4.0 

5.0 

6.0 

7.0 

8.0

246

460

870

1,600

2,720

1.0

1.1 

1.3 

1.7 

2.2

1.5

3.0

7.0

20

49

3.0 133

4.0 287

5.0 510

6.0 890

7.1 1,700

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

17

18

18

18

18

19

19

18

*18

16

20

23

16

12

11

12

12

17

23

24

24

24

33

45

31

27

41

48

37

43

$$_

797

25.7

1,580

Nov.

53

39

35

28

24

24

24

24

24

24

24

26

27

28

26

25

24

24

24

24

24

24

24

24

24

22

*21

22

22

22

780

26.0

1,550

Dec.

22

22

20

24

11

70

43

33

29

30

31

34

36

34

32

30

28

27

27

26

26

24

22

26

24

22

22

22

24

23

23

929

30.0

1,840

Jan.

23

22

22

22

23

24

25

28

34

26

27

31

94

-62 105

47

40

*35

33

99

102

59

47

42

42

50

40

38

37

35

34

1,348

43.5

2,670

Feb.

35

43

41

37

36

36

37

66

104

67

98

103

93

90

83

72

77

73

66

62

98

145

306

627

1,670

840

*780

524

-

6,309

225

12,510

Calendar year 1956; Max 3,470 Mln 6.0

Mar.

324

271

243

439

2,150

*1,640

1,100

820

920

766

633

758

698

591

561

594

495

442

408

365

341

311

283

265

249

238

227

224

251

333

300

17,245

556

34,200

Apr.

341

298

274

*262

258

291

262

240

224

216

213

200

193

332

319

260

260

355

313

274

249

237

224

213

203

195

190

189

188

185

7,458

249

14,790

May

185

216

224

193

190

193

196

193

203

195

186

185

171

185

172

*161

157

366

1,060

930

865

746

656

579

502

458

420

377

337

300

282

11,083

358

21 , 980

June

256

208

217

209

199

179

158

144

133

144

123

111

99

90

83

76

70

62

56

53

51

49

47

44

45

42

37

36

35

35

3,091

103

6,130

July

34

34

38

37

34

31

30

30

28

24

21

19

18

16

16

15

14

14

13

13

12

12

12

12

11

11

11

11

11

11

*10

603

19.5

1,2OO

Aug.

9.4

10

10

10

11

10

11

12

T2

12

11

8.2

7.0

7.3

*6.0

5.0

4.8

3.2

2.8

3.4

3.8

3.0

2.0

2.0

1.8

2.1

2.7

3.2

2.8

3.2

3.4

196.1

6.33

389

Sept.

3.4

3.8

3.8

4.2

4.4

4.8

4.4

6.2

7.3

11

9.1

7.6

9.4

10

10

11

11

12

10

9.7

11

9.4

7.9

5.6

4.4

3.8

3.6

6.4

11

14

230.2

7.67

457

Mean 278 Ac-ft 201,500

Water year 1956-57: Max 2,150 Mln 1.8 Mean 137 Ac-ft 99,30O

Peak discharge (base, 1,( 

2,610 cfs (7.91 ft).

cfs).--Feb. 25 (4 a.m.) 2,550 cfs (7.86 ft); Mar. 5 (6:30 p.m.)

* Discharge measurement made on this day.

Note.--Shifting-control method used Oct. 1-3O, July 2 to Sept. 30.
380 SAN JOAQUIN RIVER BASIN

Cosumnes River near Plymouth, Calif.

Location. Lat 38 0 32'20", long 120°51'45", in Nlrf£ sec. 22, T. 8 N. , R. 10 E., on right 

bank 1.8 miles downstream from confluence of Middle and North Forks and 4 miles north 

of Plymouth.

Drainage area . 429 sq mi.

Records available.--May 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 580 ft (from topographic map).

Average discharge.--6 years, 501 cfs (362,700 acre-ft per year).

Extremes.--Maximum discharge during year, 7,000 cfs Feb. 25 (gage height, 12.00 ft); minimum, 8.5 cfs Sept. 8.

1951-57; Maximum discharge, 33,500 cfs Dec. 23, 1955 (gage height, 20.96 ft), from 

rating curve extended above 6,500 cfs on basis of logarithmic extension and comparison 

with upstream and downstream peaks; minimum, 4.1 cfs Sept. 10, 1955.

Remarks. Records good. Some diversions above station for irrigation.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

2.7 

3.0 

3.5 

4.0 

4.5

114

200

5.0 

6.0 

7.0 

8.0 

9.0

320

660

1,160

1,820

2,750

2.2 

2.6 

3.0 

3.5 

4.0 

4.5

122

210

5.0 

6.0 

7.0 

8.0 

9.0 

11.0

333

685 

1,180 

1,82O 

2,750 

5,430

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-It

Oct.

22

22

22

22

22

24

25

24

27

29

30

39

40

33

31

30

28

28

32

34

34

33

38

79

65

54

76

102

73

80 

207

1,405

45.3

2,790

Nov.

~86 122

75

65

59

57

56

55

55

54

53

53

52

51

49

48

49

48

47

46

44

46

46

45

46

46

46

*44

45

44

1,632

54.4

3,240

Dec.

44

44

43

47

147

157

92

66

57

61

65

70

73

71

68

60

57

55

54

52

51

49

45

52

49

48

47

46

50

50 

50

1,920

61.9

3,810

Jan.

50

49

48

50

49

52

52

57

68

50

52

64

223

288

158

116

98

*85

78

254

280

158

120

106

103

126

101

90

91

87 

84

3,287

106

6,520

Feb.

87

107

102

90

87

85

87

184

270

190

245

290

268

285

262

236

262

240

224

212

288

398

862

2,010

4,500

2,060

1,780

1,250

16,961

606

33,640

Mar.

940

820

738

1,010

5.120

3,860

2,340

1,630

1,890

1,620

1,310

1,530

1,370

1,160

1,100

1,220

1,000

895

835

761

713

661

613

577

549

529

503

499

553

701 

641

37,688

1,216

74,750

Apr.

697

621

577

*561

549

577

549

518

488

478

467

443

433

677

677

557

549

748

677

589

503

514

492

470

446

433

427

423

427

420

15,987

533

31,710

May

423

478

492

436

433

443

456

450

46O

467

433

417

386

408

395

363

357

898

2.750

2,060

,820

,550

,330

,150

,000

900'

845

779

717

661 

625

24,382

787

48,360

June

601

521

510

484

453

420

380

352

333

355

312

276

251

228

214

200

184

166

151

143

136

126

118

112

10?

96

92

88

84

83

7,572

252

15,020

July

82

*77

81

77

72

67

67

70

65

60

57

53

52

50

51

46

45

43

42

44

38

40

40

34

34

32

32

30

30

30 

28

1,569

50.6

3,110

Aug.

26

30

28

22

21

22

24

23

23

22

21

20

19

18

17

16

16

15

14

14

14

14

13

12

12

12

12

12

12

12 

12

548

17.7

1,090

Sept.

11

11

10

10

9.6

9.1

9.1

9.6

9.8

10

12

11

9.8

10

11

11

12

14

16

a!5

a!4

a!4

a!3

a!3

a!2

*a!2

11

12

16

21

362.0

12.1

718

Calendar year 1956: Max 8,080 Min 18 Mean 625 Ac-ft 453,400

Water year 1956-57: Max 5,12O Min 9.1 Mean 310 Ac-ft 224,800

Peak discharge (base, 1,900 cfs).--Feb. 25 (4 a.m.) 7,000 cfs (12.00 ft); Mar. 5 (6 a.m.) 4,980 cfs

(10.70 ft); May 19 (3 a.m.) 3,780 cfs (9.85 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage, 1 discharge 

measurement, and records for station at Michigan Bar.
SAN JOAQUIN RIVER BASIN 381

Cosumnes River at Michigan Bar, Calif.

Location. Lat 38°30'00", long 121°02'45", in SE£ sec. 36, T. 8 N., R. 8 E., on downstream side of midstream pier of highway bridge at Michigan Bar, 5.5 miles southwest 

of Latrobe and 12 miles downstream from confluence of North and Middle Forks.

Drainage area. 537 sq mi.

Records available.--October 1907 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 168.09 ft above mean sea level, datum of 

T929. Prior to July 10, 1930, staff gage at same site and datum.

Average discharge. 50 years, 487 cfs (352,600 acre-ft per year).

Extremes. Maximum discharge during year, 6,930 cfs Mar. 5 (gage height, 7.41 ft); minimum, 7.0 cfs Sept. 12.

1907-57: Maximum discharge, 42,000 cfs Dec, 23, 1955 (gage height, 14.59 ft), 

from rating curve extended above 6,000 cfs on basis of comparison with upstream and 

downstream peaks and velocity-area studies; no flow parts of many years.

Flood in March 1907 reached a stage of 16.3 ft.

Remarks. Records excellent except those for period of no gage-height record, which are 

good. Numerous small diversions above station for irrigation and mining. Records of 

chemical analyses for the water year 1957 are given in WSP 1523.

Revisions (water years) . WSP 331: 1911-12. WSP 881: 1908-9 (yearly summaries only).

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

2.0 

2.2 

2.4

Z.I

6.0

17

34

74

3.0 

3.5 

4.0 

4.5

130

290

570

1,040

5.0 

6.0 

7.0 

8.0

1,680

3,200

5,680

8,860

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

2 1

22

23

24

25

26

27

28

C9

30

31

Total

Mean

Ac-ft

Oct.

a25

24

2324"

23

24

27

28

27

31

33

34

45

41

35

34

31

31

32

35

38

37

40

55

*85

65

70

103

88

80

170

1,438

46.4

2,850

Nov.

158

101

84

76

68

62 

60

60

59

58

56

56

56

55

55

52

52

52

52

51

49

48

51

51

49

49

49

49

49

49

1,816

60.5

3,600

Dec.

48

48

48

49

90

m82

65

65

68

74

79

79

77

72

68

65

64

60

59

56

55

55

59

55

53

52

52

56 

55

2,097

67.6

4,160

Jan.

55

53

53

55

55

55 

58

59

71

68

55

68

146

345

T55

132

*108

95

88

221

335

182

138

119

110

135

126

99

101

94

92

3,556

115

7,050

Feb.

92

101

117

101

94

92 

92

121

274

203

206

294

262

274

262

236

246

250

218

206

243

434

813

1,810

4,670

2,210

*2,060

1,450

17,431

623

34,570

Calendar year 1956: Max 8,59o Min 19

Mar.

1,150

920

951

1,690

6.190

*4,180 

2,560

1,990

2,100

1,790

1,460

1,640

1,540

1,290

1,200

1,390

1,110

985

900

812

749

695

634

586

556

535

514

500

535

713

650

42,515

1,371

84,330

Apr.

722

634

570

556

542

570 

549

507

482

470

458

440

424

710

758

586

578

930

803

650

578

542

514

476

458

434

424

418

418

412

16,613

554

32,950

Hay

412

458

514

434

418

429 

434

440

446

464

418

407

375

385

385

*350

335

610

2,750

2,200

2,020

1,720

1,480

1,290

1,090

963

9OO

812

740

668

626

24,973

806

49,530

June

602 sir

494

470

434

402 

365

345

312

330

290

258

232

215

197

185

170

152

140

130

123

117

112

*104

99

92

87

82

79

77

7,216

241

14,310

July

77

76

74

72

66

65 

65

66

65

60

53

52

49

46

48

46

43

41

41

38

38

36

38

36

31

31

30

29

~Z§ 28 

28

1,496

48.3

2,970

Aug.

*26

23

26

26

21

17 

19

22

19

22

22

21

19

19

*18

18

16

16

16

15

15

15

14

14

13

14

13

12

13

12

13

549

17.7

1.O9O

Sept.

13

12

13

12

11

11 

10

12

12

12

10

13~9.

11

12

12

12

14

15

16

16

15

15

14

13

a!3

a!4

a 15

a!6

al8

391

13.0

776

Mean 660 Ac-ft 479,000

Water year ir 1956-57: 1956-57: Max Max 6,190 6,190 Mln Mln 9.O 9.O Mean Mean 329 329 Ac-ft Ac-ft 238,200 238,200 _________

:harge (base. 2,000 cfs).--Feb. 25 (6:30 a.m.) 6.37O cfs (7.23 ft); Mar. 5 (5 p.m.) 

:fs (7.41 ft); Mar. 9 (l2 m.) 2,480 cfs (5.56 ft); Mar. 12 (6 p.m.) 2.O40 cfs (5.26 ft); 

(S a m^ X.46D efn (6.13 ft).

Peak disc

6,930 c . . . 

May 19 (5 a.m.) 5,460 efs (6.15 ft

* Discharge measurement was made on this day.

a No gage-height record; discharge estimated on basis of recorded in stage and records for station 

near Plymouth.
382 SAN JOAQUIN RIVER BASIN

Cosumnes River at McConnell, Calif.

Location.--Lat 38°21'29", long 121°20'34", in sec. 20, T. 6 N., R. 6 E., on downstream 

 side of bridge on U. S. Highway 99, 0.2 mile south of McConnell, 1 mile downstream 

from Deer Creek, and 7 miles north of Gait.

Drainage area. 730 sq mi.

Records available.--October 1943 to September 1957 in reports of Geological Survey.

1931-40, 1941-42 (gage heights only during high-water periods) and 1942-57 in reports 

of California Department of Water Resources.

Gage.--Water-stage recorder. Gage is set to datum of Corps of Engineers.

Average discharge. 14 years (1943-57), 550 cfs (398,200 acre-ft per year); median of 

yearly mean discharges, 416 cfs (301,000 acre-ft per year).

Extremes.--Maximum discharge during year, 7,710 cfs Mar. 6 (gage height, 42.00 ft); no 

FTow during several months.

1943-57; Maximum discharge, 54,000 cfs Dec. 23, 1955 (gage height, 46.26 ft), from 

rating curve extended above 36,000 cfs by logarithmic plotting; no flow during parts 

of each year.

Remarks. Records good except those for period June 10 to July 11, which are fair. Diversions for irrigation of about 2,100 acres between stations at Michigan Bar and at 

McConnell.

Cooperation. Ten discharge measurements furnished by California Department of Water 

Resources.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, In cubic feet per second) 

(Shifting-control method used June 11 to July 11)

Oct. 1 to Nov. 1

30.4 0

30.5 8

30.7 26

31.0 56

31.4 108

31.8 179

Discharge, In cubic feet per second, water year October 1956 to September 1957

Nov. 1 to Mar. 6

30.8

31.0

31.3

31.6

32.0

28

46

83

130

205

33.0

34.0

36.0

38.0

42.0

450

800

1,860

3,290

7,710

Mar. 6 to Sept.

30.4

30.5

30.7

31.0

31.5

32.0

0

8

26

56

124

222

33.0

34.0

36.0

38.0

39.0

60

505

885

1,900

3,290

4,250

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

*0

0

0

0

0

o

0

0

o

0

0

o

0

0

8.9

9.8

8.0

5.6

3.2

5.6

15

15

*11

6.4

22

110

80

78

114

111 

108

711.5

23.0

1,410

Nov.

*169

125

88

69

58

*50

46

43

42

40

39

38

38

38

38

37

35

34

34

*34

34

34

34

34

34

34

34

34

33

33

1,433

47.8

2,840

Dec.

33

33

32

*33

35

102

140

90

67

55

52

53

56

59

59

58

54

49

47

47

45

44

43

40

41

43

*40

39

38

38 

40

1,605

51.8

3,180

Jan.

40

40

*39

39

39

39

39

41

42

53

48

40

61

223

*250

158

119

98

83

94

285

245

161

128

112

119

128

112

95

94 

88

3,152

102

Feb.

84

84

96

100

88

*82

79

*83

151

221

169

225

255

239

250

231

209

233

215

191

191

310

396

1,250

3,820

2,940

*2,420

1,630

-------

16,242

Mar.

1,420

1,060

832

1,280

4,730

*7,22Q

*4,050

2,270

2,040

2,130

1,600

1,460

1,700

1,400

1,210

1,420

1,280

1,060

944

854

*772

712

652

603

572

547

522

498

Apr.

656

648

578

540

526

526

547

505

469

*451

445

430

400 466"

780

600

*540

728

849

720

617

547

512

485

454

433

418

412

498 406

617 

652

4U9

46.605 16.097

580 1.503 537

6,2501 32,220 92,440 31,930

May

40O

415

495

451

415

412

424

*433

433

442

418

397

382

362

*382

351

320

348

2,130

2,40O

2 220

1 880

1 580

1 360

1 140

998

912

828

764

688

638

24,818

801

49,230

June

'55B~ 603

508

479

454

421

379

346

318

318

340

282

236

*204

187

175

155

148

131

121

113

108

105

105

87

74

62

75

71

58

7,221

241

14,320

July

50

38

28

39

38

32

15

33

21

13

7.1

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

*0

0 

0

314.1

10.1

Aug.

(*)

0

0

623 ' 0

Sept.

0

0

0

Caleniar y.^ar 1956: Ma' 14,5OO Mln 0 M. a r. 717 Ac-ft 519,100

Water year 1956-57: Max 7,220 Mln 0 M-an 324 Ac-ft 234,400

Peak discharge (base, 3,600 cfs).--Feb. 25 (7 p.m.) 5,070 cfs (39.80 ft); Mar. 6 (12 m.) 7,710 cfs 

(42.00 ft)._____________________________________________________ * Discharge measurement or observation of no flow made on this day.
SAN JOAQUIN RIVER BASIN 383

Contra Costa Canal near Oakley, Calif.

Location. Lat 37°59i45", long 121°42iOO", in NEi sec. 25, T. 2 N., R. 2 E., at Pumping 

Plant No. 1, 0.7 mile east of Oakley and 2.6 miles northwest of Knightsen.

Records available. February 1950 to September 1957.

,_.- -Recording flow meters on pumps. Prior to Jan. 1, 1953, water-stage recorder at 

site 3.2 miles downstream at datum 121.72 ft above mean sea level (levels by Bureau of 

Reclamation) .

Average discharge. 7 years, 55.6 cfs (40,250 acre-ft per year).

Extremes . --1950-57 : Maximum daily discharge, 140 cfs Aug. 2, 1957; minimum daily, 8.0 cfs 

Jan. 12, 1952.

Remarks . Water is diverted from Sacramento-San Joaquin Delta by way of Old River, Rock 

Slough, and a dredged channel. A series of 4 pumping plants lifts the water about 

115 ft into canal. Water is used for municipal, agricultural, and industrial purposes. 

The canal is a part of the Central Valley project.

Cooperation. Records of daily discharge furnished by Bureau of Reclamation and reviewed 

by Geological Survey.

Discharge, In cubic feet-per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-It

Oct.

72

77

76

73

79

81

75

77

74

75

72

72

73

75

75

71

78

81

79

79

76

73

69

78

75

72

71

64

61

54

52^

2,259

72.9

4,480

Nov.

50

5o

50

50

47

50

*46" 38

42

49

44

45

45

46

45

43

43

40

43

43

42

42

45

43

43

40

40

42

39

42

1,327

44.2

2,630

Dec.

42

43

41

41

41

40

49

42

42

40

41

44

48

52

51

53

51

48

47

52

57

BT

54

50

45

45

41

46

52

46

49

1,446

44.6

2,870

Calendar year 1956: Max 128

Jan.

51

43

43

46

45

50

48

50

51

51

51

50

50

46

46

52

s?

48

48

50

49

51

48

48

50

51

50

50

44

50

49

1,511

48.7

3,000

Feb.

48

49

51

48

49

46

45

48

49

48

49

49

49

52

54

53

54

52

50

50

46

48

47

46

49

47

47

37

-

1,360

48.6

2,700

Mar.

36

37

36

36

33.

34

36

37

36

37

36

37

37

37

36

36

37

36

38

51

39

39

40

42

65

57

62

60

69

4T

38

1,292

41.7

2,560

Apr.

44

64

76

65

59

51

73

69

67

55

50

60

72

63

80

86

88

W

60

49

49

50

60

63

64

67

70

73

71

72

1,946

64.9

3,860

May

64

66

66

72

Zi

79

78

71

65

64

64

63

59

62

62

66

62

61

57

55

56

55

54

53

55

55

61

65

65

68

73

1,975

63.7

3,920

June

77 36"

90

96

101

99

93

92

89

90

89

94

96

101

103

97

98

106

112

110

112

113

112

130

I2T

127

111

111

110

107

3,073

102

6,100

July

129

104

109

102

109

109

106

111

106

114

115

117

122

118

117

121

115

117

123

155

128

127

127

132

131

135

130

128

128

128

132

3,725

120

7,390

Aug.

105

no

T3T

135

128

121

124

126

132

131

125

121

125

127

124

121

119

119

119

118

118

119

121

123

120

119

116

117

119

114

108

3,785

122

7,510

Sept.

107

105

110

116

120

120

121

126

125

121

116

114

119

116

113

101

114

115

113

108

108

107

109

109

108

107

102

103

101

97

3,351

112

6,650

Mln 27 Mean 62.2 Ac-ft 45,170

Water year 1956-57: Max 140 Kin 33 Mean 74.1 Ac-ft 53,670

Discharge measurement made on this day.
384 SAN JOAQUIN RIVER BASIN

Marsh Creek near Byron, Calif.

Location.--Lat 37°52'25", long 121°43'35", in Los Meganos Grant, on right bank 40 ft

downstream from highway bridge on Marsh Creek road and 5.0 miles west of Byron, Contra 

Costa County.

Drainage area.--42.5 sq mi.

Records available.--February 1953 to September 1957.

Gage. Water-stage recorder. Datum of gage is 177.87 ft above mean sea level, datum of 

1929.

Extremes. Maximum discharge during year, 144 cfs Feb. 24 (gage height, 4.38 ft); no flow 

during several months.

1953-57: Maximum discharge, 3,800 cfs Dec. 23, 1955 (gage height, 12.98 ft), from 

rating curve extended above 320 cfs on basis of slope-area determination of peak flow; 

no flow for several months each year.

Remarks. Records good. No storage or diversion.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, In cubic feet per second)

2.07

2.1

2.2

2.3

2.4

2.5

.1

.5

1.1

2.2

3.9

2.7 

2.9 

3.2 

3.6 

4.0

9.0

16

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

O

0

0

Nov.

(*)

0

0

0

Dec.

(*)

0

0

0

Jan.

(*)

0

0

0

Feb.

00"

0

0

0

0

0

o

0

o

0

0

0

0

0

0

0

0

0

0

0

0

*4.2

32

65

22

14

*17

-

152.2

5.44

302

Mar.

14

9.6

7.8

9.0

18

19

*13

10

11

9.9

7.2

7.2

7.5

6.4

6.7

8.4

6.2

5.5

5.0

4.3

3.7

3.2

2.8

2.2

2.3

1.9

1.8

1.3

*.8

.9

. _£

207.0

6.68

411

Apr.

0.8

.2

.1

.1

0_

0

O

0

0

0

0

0

0

0

0

0

.7

6.7

4.1 z'.l

1.7

1.4

1.2

1.1

.8

.5

.6

*.2

0

0

22.3

0.74

44

May

00"

0

0

0

0

0

0

o

0

o

0

0

0

0

0

0

0

15

14

32TT

9.9

6.4

5.7

4.3

3.2

2.8

*1.4

1.5

113.2

3.77

225

June

1.4

03

.8

.6

.4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

4.2

0.14

8.3

July

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956: Max 355 Mln 0 Mean 14.8 Ac-ft lo,720

Water year 1956-57: Max 63 Mln o Mean 1.37 Ac-ft 990

Peak discharge (base, 2OO cfs). No peak above base.

Discharge measurement or observation of no flow made on this day.
GOOSE LAKE BASIN 385

Drew Creek near Lakeview, Oreg.

Location. Lat 42°07'00", long 120°34'20" > in NE^ sec. 10, T. 40 S., R. 18 E., on left 

bank 10 ft upstream from bridge to Drew Creek Forest Camp, if miles downstream from 

Willow Creek, 2f miles downstream from Drew Creek Dam, and 121 miles southwest of 

Lakeview.

Drainage area. 211 sq mi.

Records available.--January 1909 to September 1921 and October 1925 to September 1957 in 

reports of Geological Survey. January 1909 to September 1941 in reports of State 

engineer.

Gage. Water-stage recorder. Datum of gage is 4,827.0 ft above mean sea level (levels by 

Bureau of Reclamation). Prior to May 31, 1909, staff gage at dam site. Nov. 20, 1909, 

to Feb. 28, 1910, staff gage 100 ft downstream from dam site. Mar. 1, 1910, to 

Dec. 12, 1911, staff gage and Dec. 13, 1911, to May 17, 1918, water-stage recorder, at 

old bridge 1 mile below dam. May 18, 1918, to 1921, water-stage recorder and 1921 to 

Oct. 26, 1941, staff gage, at site 300 ft above old bridge. Oct. 27, 1941, to June 21, 

1942, staff gage and June 22, 1942, to July 3, 1953, water-stage recorder, at site a 

quarter of a mile upstream at datum 8.1 ft higher.

Average discharge. 29 years (1909-30, 1937-38, 1939-41, 1946-47, 1953-57), 70.6 cfs 

(51,110 acre-ft per year) including diversion by North Drew Canal.

Extremes.--Maximum discharge during year, 562 cfs Mar. 12 (gage height, 4.03 ft); minimum,

1909-57; Maximum discharge, 3,000 cfs Mar. 1, 2, 1910, from rating curve extended 

above 1,200 cfs; no flow at times.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor. Flow regulated by Drew Creek Reservoir (capacity 62,500 acre-ft). 

Diversions for irrigation of 3,100 acres above station, and since March 1914, North 

Drew Canal has diverted water from Reservoir for irrigation of lands west of Lakeview.

Rating tables, water year 1956-57, except period of ice effect (gage height, 

in feet, and discharge, in cubic feet per second)

1.4

1.5

1.6

1.7

1.8

Oct. 1 to Feb. 26

1.9

2.0 

2.2 

2.4

Feb. 27 to Sept. 30

0.3 

1.0 

3.0 

7.0

2.2 

2.5 

2.7

99

135

3.0 200

3.5 360

4.0 550

Note.' Same as preceding 

table below 2.2 ft.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

2L

22

23

24

25

26

27

28

29

30

3L

Total

Mean

Ac-ft

(t)

(*)

Oct.

12

.9

.8

.8

.7

~3.6

.6

.7

.8

1.0

1.0

.8

.8

.8

.8

 *.8

.9

.9

.9

.9

.9

.9

.9

.9

1.4

1.2

.9

.9

2.4

1.6

40.1

1.29

80

22

a35,580

Nov.

1.4

1.4

1.0

1.0

1.2

1.2

1.4

1.4

1.2

1.0

.9

.9

.8

.8

.7

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

27.0

0.90

54

0

336,700

Dec.

0.7

T8

.8

.9

.9

.9

.9

.9

1.0

2.0

23

TT

4.6

1.8

1.8

1.6

1.4

1.2

1.0

1.0

1.2

1.0

.9

.9

1.2

1.3

1.4

1.4

1.2

1.2

1.2

71.1

2.29

141

0

a41,000

Calendar year 1956: Max 998

Jan.

1.2

.9

.8

T8

.8

.8

1

1.5

1.2

1

1

1.2

1.5

2

T.8

1.5

1.2

1

1

1

1

1

1

1

1

1

1

1

1

1

1.2

34.4

L.ll

68

0

343,140

Feb.

2

1.5

1.2

1

T

1

1.2

1.5

3

7

10

20

30

50

80

80

75

70

67

55

40

46

31

60

42

82

To

15

903.4

32.3

1,790

0

59,840

Win 0.6

Mar.

10

13

25 7.0

116

236

374

438

458

430

438

538

506

450

438

442

406

402

*402

398

378

328

294

272

300

325

332

332

342

356

406

10,192.0

329

20,220

0

364,000

Apr.

412

38T

367

350

350

346

339

*311

294

284

272

260

254

266

266

257

248

257

281

284

269

257

242

224

*200

185

173

165

159

155

8,108

270

16,080

0

63,430

Mean 171

May

147

157

155

149

145

143

141

*133

126

126

122

116

111

113

108

101

94

99

127

131

133

135

116

109

102

93

83

70

83

94

92

3,654

118

7,250

1,750

62,960

June

84

73

71

86

99

102

86

11

eS 8.4

*83

83

86

83

80

80

86

78

71

58

56

56

50

45

42

28

31

55

55

55

1,950.4

65.0

3,870

5,440

354,600

July

62

62

*62

64

66

65

65

76

84

81

77

78

77

77

76

77

76

66

70

76

77

77

74

70

66

58

53

47

49

37

li

2,076

67.0

4,120

5,000

42,120

Aug.

31

44

45

46

*49

57

57

56

55

55

55

55

49

47

47

43

37

41

45

46

45

41

40

38

38

37

28

22

21

18

TO

1,306

42.1

2,590

4,350

34,960

Sept.

18

18

23

*28

23

18

19

22

22

26

27

28

24

24

24

24

24

24

24

24

22

21

21

21

 19

13

13 ' 13

11

.9

618.9

20.6

1,230

2,620

30,780

Ac-ft 123,800

Water year 1956-57: Max 538 Mln 0.6 Mean 79.4 Ae-ft 57,490

* Discharge measurement made on this day.

t Diversion, in acre-feet, by North Drew Canal.

* Month-end contents, in acre-feet, of Drew Creek Reservoir.

** Field estimate made on this day.

. estimated on basis of weather 

Creek above Barnes Spring, near
386 GOOSE LAKE BASIN

Cottonwood Creek near Lakeview, Oreg.

Location. Lat 4S°14', long 1SO°30', in SW-j;- sec. 29, T. 38 S., R. 19 E., on right bank 

600 ft downstream from Cottonwood Creek Dam and 10 miles northwest of Lakeview.

Drainage area. 30 sq mi, approximately.

Records available November 1908 to September 1919 and October 1925 to September 1957 in 

reports of Geological Survey. November 1908 to September 1919 and October 19S4 to 

September 1941 in reports of State engineer.

Gage. Water-stage recorder. Datum of gage is 5,006.93 ft above mean sea level (levels 

oy Bureau of Reclamation). Prior to June 1, 1919, and Apr. 13, 1924, to June 3, 1932, 

staff gage at several sites at different datums. June 1 to Sept. 30, 1919, waterstage recorder at different site and datum.

Average discharge.--36 years (1909-19, 1924-35, 1938-4S, 1946-57), 21.5 cfs (15,570 aereft per year) .

Extremes. Maximum discharge during year, 117 cfs Mar. 15-18 (gage height, 3.61 ft); no 

flow at times.

1908-19, 19S4-57: Maximum discharge, between 500 and 1,000 cfs during period 

Apr. 26 to May 1, 1927, when natural flow, estimated as 170 cfs, was augmented by 

water escaping from reservoir through break in outlet conduit below control gate; no 

flow at times.

Remarks. Records fair except those for periods of no gage-height record, which are poor. 

Since 1923 flow regulated by Cottonwood Creek Reservoir (capacity 4,160 acre-ft). 

Diversions for irrigation of 270 acres above station.

Rating table, water year 1956-57 (gage height, In feet, and 

discharge, in cubic feet per second)

1.1

1.2

1.3

1.4 

1.6 

1.8

2.0 

2.3 

2.6 

3.0 

3.5 

4.0

103

175

Discharge, In cubic feet per second, waber year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

Oct.

17

17

17

17

16

16

16

16

16 

16

16

15

15

15

14

7.8

*0

0

0

O

0

4.9

7.7

7.5

7.5

7.2

7.2

7.0

7.0

7.0

7.0

316.8

10.2

628

0

Nov.

6.9

rrs

6.9

6.9

7.0

.O

.2

.2

.4 

.4

.4

.5

.7

.9

8.1

8.1

8.3

8.3

8.5

875

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.3

8.1

8.1

235.1

7.84

466

ao

Dec.

8.1

7.9

7.7

7.7

7.5

7.5

7.4

7.2

7.0 

6.8

8.1

10

11

11

11

12

12

12

12

12

12

12

12

12

12

12

12

12

12

11

11

315.9

10.2

627

aO

Calendar year 1956: Max 258

Jan.

10

T3

10

10

10

9.8

4.0

0

0 

0

0

0

0

0

O

o

0

0

0

0

0

0

o

0

o

0

0

0

0

0

0

63.8

2.06

127

390

Feb.

0

TJ

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

.1

.2

.7

7.4

15

21

16

85

110

TTo

365.4

13.0

725

3,320

Mar.

84

72

70

46

30

29

16

14

14

14

14

32

50

77

108

117

TT7

117

116

93

83

61

48

34

22

21

9.8

4.1 TTs

9.5

9.5

1,539.4

49.7

3,050

33,850

Apr.

14

17

24

*30

30

44

53

54

55 

58

67

81

86

88

86

84

82

80

78

76

74

72

70

*67

66

54

33

33

37

45

1,738

57.9

3,450

a4,500

May

~Se 57

70

77

78

77

76

76

77 

77

76

75

75

74

72

69

66

66

75

77

78

76

71

69

65

63

*61

60

61

65

84

2,209

71.3

4,380

4,540

June

87

sT

78

75

73

76

86

72

60 

46

36

32

3T

51

58

68

68

65

60

60

60

60

59

59

58

58

45

37

36

36

1,777

59.2

3,520

a2,650

July

32

30

30

30

33

35

35

27

8

23

23

24

24

28

39

47

51

42

41

40

40

39

38

37

36

35

35

34

33

32

1,039

33.5

2,060

900

Aug.

31

30

30

29

28

27

26

25

25 

24

23

22

22

22

21

20

20

18

17

16

15

14

12

9.3

6.3

3.1

2.2

2.3

2.3

2.4

2.6

547.5

17.7

1,090

0

Sept.

2.4

2.2

2.1

2.1

2.1

1.9

1.8

1.7

1.7 

1.7

1.8

1.8

1.7

1.8

1.8

1.8

2.2

2.0

2.0

2.0

1.8

1.7

1.6 TTs

1.6

1.6

2.1

3.6

3.7

4^2

62.3

2.08

124

0

Mln 0 Mean 54.4 Ac-ft 39,490

Water year 1956-57: Max 117 Mln O Mean 28.0 Ac-ft 20,250

* Discharge measurement or observation of no flow made on this day.

t Month-end contents. In acre-feet, of Cottonwood Creek Reservoir.

Note. Ho gage-height record Mar. 9-11, Apr. 15-23, July 2O to Aug. 11; discharge Interpolated.
SACRAMENTO RIVER BASIN 387

Sacramento River at Delta, Calif.

Location. --La t 40°56'20", long 122°24'55", in NW^r sec. 35, T. 36 N., R. 5 W., on left 

bank 0.2 mile downstream from Dog Creek, 0.6 mile southeast of Delta, and 2.8 miles 

south of La Moine.

Drainage area. 427 sq mi.

Records available. December 1944 to September 1957.

Gage. Water-stage recorder. Datum of gage is 1,075.00 ft above mean sea level (levels 

by Bureau of Reclamation).

Average discharge. 12 years (1945-57), 1,105 cfs (800,000 acre-ft per year).

Extremes. Maximum discharge during year, 25,700 cfs Feb. 24 (gage height, 15.83 ft); minimum, 182 cfs Sept. 11.

1944-57: Maximum discharge, 37,000 cfs Dec. 22, 1955 (gage height, 19.50 ft), from 

rating curve extended above 19,000 cfs on basis of slope-area determination of peak 

flow; minimum, 141 cfs Sept. 3, 4, 5, 1950.

Remarks. Records excellent. Small diversions above station for irrigation. Records of 

chemical analyses and water temperatures for the water year 1957 are given in WSP 1523.

Revisions (water years).--WSP 1395: 1951(M).

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

3.8 

4.0 

4.5 

5.0 

6.0

180

235

410

655

1,340

7.0

8.5

10

2,400

4,710

8,010

13,800

23,100

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Ac-ft

Oct.

220 

223

220

220

226

223

223

238

247 

290

310

268

256

253 

250

250

247

250

250

247

247

247

250

259

259

324

307 

276

307

. A 0

442

8,727

282

17,310

Nov.

374 

346

332

338

332

324

321

318

310 

304

296

290

282

279 

276

*276

276

276

268

262

262

262

259

259

259

259

256 

253

253

253

8,655

288

17,170

Dec.

1 253 

250

250

262

265

265

256

250

253 

259

290

318 306"

290 

276

272

265

262

259

256

259

256

253

253

247

244

241 

241

244

244

247

8,080

261

16,030

Jan.

247 

244

241

238

235

232

238

250

241 

238

268

406

1,380

1.560 

1,210

*704

520

438

422

446

402

370

356

342

332

314

293 

304

290

290

286

13,337

430

26,450

Peb.

300 

293

282

286

286

293

318

477

459 

426

402

414

515

770 

806

782

782

770

694

824

1,140

1,400

11,500

21,000

10,800

14,700

8,090 

4,600

-

83,409

2,979

165,400

Mar.

3,260 

2,720

2,270

2,170

2,440

2,390

2,400

2,280

4.540

3,160

2,970

4,030

3,050

2,460

2,520

2,630

2,390

2,190

2,030

1,930

1,770

 1,590

1,460

1,360

1,350

1,380

1.510 

1,330

1,540

1,420

1,320

69,660

2,247

138,200

Apr.

1,230 

1.160

1,210

1,310

1,400

1,470

1,280

1,210

1,200 

1,200

1,220

1,430

1,320

2,500 

1,750

1,580

2,760

2.910

2,620

2,310

2,040

1,880

1,750

1,630

1,520

1,450

1,430 

1,500

1,650

1,990

49,910

1,664

99,000

May

2,160 

3,040

2,200

1,930

1,900

1,930

*1,910

1,920

2,720 

2,160

1,830

1,720

2,940

3,350 

2,700

2,300

2,560

12 . 900

4^160

3,240

2,690

2,320

2,080

1,930

1,830

1,760 

1,720

1,720

1,560

1,470

84,980

2,741

168,600

June

1.580 

1,280

1,190

1,090

1,020

960

897

860

848 

818

758

722

688

666 

638

606

*594

572

550

535

520

495

477

459

450

430

422

410

402

398

21,135

704

41,920

July

398 

38G

382

370

363

352

346

342

335 

328

321

318

328

342 

328

310

300

295

290

290

286

295

286

276

272

268

265 

262

256

* 255

250

9,689

513

19,220

Aug.

 544 247 

241

235

241

247

258

255

252 

252

252

226

225

225 

220

214

211

211

205

205

202

202

200

200

198

200

*202 

200

202

208

208

6,784

219

15,460

Sept.

205 

200

198

198

198

195

192

188

188 

188

188

190

190

190 

190

192

200

205

200

198

195

192

190

190

190

555

6,900 

1,490

925

716

15,416

514

30,580

Calendar year 1956: Max 14,700 Mln 220 Mean 1,339 Ac-ft 971,800

Water year 1956-57: Max 21,000 Mln 188 Mean 1,040 Ac-ft 753,300

Peak discharge (base, 5,700 cfs). Feb. 24 (8 a.m.) 25,700 cfs (15.83 ft)j Peb. 26 (11 a.m.) 

17,200 cfs (13.11 ft): Mar. 9 (5:30 a.m.) 5,930 cfs (9.11 ft); May 18 (9 a.m.) 17,100 cfs 

(15.07 ft); sept. 27 (9 a.m.) 15,1OO cfs (12.42 ft).______________________________ 

* Discharge measurement made on this day.

510529 O - 59 - 26
388 SACRAMENTO RIVER BASIN

South Fork Pit River near Likely, Calif.

Location. Lat 41°14', long 120°25', in NE£ sec. 11, T. 39 N., R. 13 E., on left bank 

1.3 miles downstream from West Valley Creek and 3.5 miles east of Likely.

Drainage area . 248 sq mi.

Records available. October 1928 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 4,580 ft (from topographic map). Prior

 To Oct. 1, 1931, at site 1,000 ft downstream at different datum.

Average discharge . 28 years (1929-57), 73.4 cfs (53,140 acre-ft per year).

Extremes.--Maximum discharge during year, 474 cfs May 19 (gage height, 4.43 ft); minimum, 5.0 cfs Mar. 23.

1928-57: Maximum discharge, 1,060 cfs Apr. 27, 1932 (gage height, 5.55 ft), from 

rating curve extended above 600 cfs; minimum, 0.2 cfs Feb. 3, 1941.

Remarks. Records good except those for periods of ice effect, which are fair. Flow regu-

 HTEe~d by West Valley Creek Reservoir beginning in May 1937 (total capacity, 17,700 

acre-ft). Diversions for irrigation of about 3,800 acres above station.

Revisions. WSP 861: Drainage area.

Rating tables, water year 1956-57, except periods of Ice effect (gage height. In feet,

and discharge. In cubic feet per second)

(Shifting-control method used Apr. l)

Oct. 1 to Apr. 1 Apr. 1 to June 21 June 22 to Sept. 30

1.8 

2.0 

2.3 

2.6- 

3.0 

3.5

13

25

53

92

162

276

3.5 

4.5

62

98

143

241

495

2.1 

2.5 

3.0 

3.5

79

162

276

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

21

25

27

27

24

23

25

*49

42

40

69

75

52

47

45

42

39

44

46

41

38

37

38

39

45

57

57

48

46

16"

1,352

43.6

2,680

Nov.

53

58

57

49

48

48

.49

49

50

49

49

48

52

46

45

47

47

41

46

58

55

44

40

40

39

39

38

39

36 

7?ob

1,395

46.5

2,770

Dec.

36

41

34

34

36

30

25

55

35

70

»150

142

273

160

102

89

75

70

61

58

53

47

61

53

47

47

51

54

47

39 

38

2,083

67.2

4,130

Calendar year 1956; Max 495

Jan.

37

37

38

52

50

45

40

35

30

30

30

30

35

37

50

64

58

*54

50

50

45

45

45

40

35

30

25

25

25

25 

25

1,217

39.3

2,410

Feb.

35

30

30

30

30

30

30

30

32

33

33

36

39

146

74

70

59

42

32

30

27

53

41

144

117

78

158

156

-

1,645

58.8

3,260

Mar.

69

58

51

63

81

-53 162

61

50

55

55

*44

44

40

42

30

20

17

16

15

18

17

14

13

32

32

21

19

20

31 

53

1,332

43.0

2,640

Apr.

123

111

92

68

62.

84

89

89

92

102

*111

115

112

115

114

121

115

124

157

224

286

ST?

193

179

164

157

162

193

235

268

4,269

142

8,470

May

270

274

250

252

277

325

368

398

400

385

390

390

368

342

318

*305

315

340

444 m

392

342

315

308

315

322

340

368

388

405 

418

10,768

347

21,360

June

420

425

441

428

408

395

368

3-42

322

310

286

261

230

185

203

193

187

187

173

157

148

138

122

113

113

116

110

105

100

98

7,084

236

14,050

July

93

87

85

79

74

69

66

63

53

49

46

45

15

53

57

54

*52

63

82

96

105

110

106

124

158

168

178

178

178

180 

178

2,977

96.0

5,900

Aug.

172

168

168

168

170

168

142

105

83

80

82

79

74

74

79

113

170

168

168

172

189

TSU

142

75

75

75

75

67

48

4? 

50

3,637

117

7,210

Sept.

50

48

48

48

49

49

48

46

47

46

47

45

46

46

47

42

39

50

62

60

57

57

57

»56

89

114

114

100

80

90

1,777

59.2

3,520

Mln 21 Mean 110 Ac-ft 79,870

Water year 1956-57: Max 444 Mln 13 Mean 108 Ac-ft 78,400

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 6-11, Jan. 5-13, Jan. 18 to Feb. 9.
SACRAMENTO RIVER BASIN 389

Pit River near Canby, Calif.

Location. Lat 41°24', long 120°55', In SWi sec. 10, T. 41 N., R. 9 E., on right bank at 

lower end of Warm Spring Valley, 4 miles southwest of Canby.

Drainage area. 1,430 sq mi, approximately, excluding Goose Lake basin.

Records available. January 1904 to December 1905, May 1929 to September 1957 (1929-31 

Incomplete).

Gage. Water-stage recorder. Altitude of gage Is 4,300 ft (from topographic map). January 1904 to December 1905, staff gage, and May 6, 1929, to Sept. 30, 1931, waterstage recorder at site 100 ft upstream at different datum.

Average discharge. 26 years (1931-57), 232 cfs (168,000 acre-ft per year).

Extremes. Maximum discharge during year, 2,270 cfs Feb. 27 (gage height, 6.23 ft); minimum, 9.9 cfs July 28.

1904-5, 1929-57: Maximum discharge observed, 13,000 cfs Mar. 8, 1904 (gage height, 

15.0 ft, datum then In use); minimum, 0.1 cfs Apr. 29, Aug. 5, Sept. 18, 1934, 

Aug. 18-21, 1935.

Remarks. Records good except those for periods of ice effect, which are fair. Plow regulated by many small reservoirs (total capacity now about 141,000 acre-ft). Diversions for Irrigation of about 39,000 acres above station.

Revisions. WSP 861: Drainage area. WSP 1445: 1904, 1935(M), 1936, 1937(M).

Rating table, water year 1956-57, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.2

2.3

2.4 

2.6 

2.8

6.5

15

27

65

120

3.0 

3.5 

4.0 

5.0 

6.2

195

440

730

1,370

2,250

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24 

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

108

90

88

85

82

50

63

 68 

70

80

130

175

187

175

171

163

138

124

111

111

127

111

105

130 

124

124

141

167

195

244 

290

4,027

130

7,990

Nov.

407

434 295"

262

262

' 222

191

179 

171

167

163

167

167

144

138

124

130

138

 124

111

 §o 90

102

108 

108

99

96

93

96

96

4,974

166

9,870

Dec.

102

111

124

88

59

54

Ji

5050"

70

 120

350

736

908

941

820

544

335

280

244

213

183

130

152 

167

159

171

175

179

179

167

7,913

255

15,700

Jan.

159

T55

152

144

124

100

85

75 

70

80

90

100

120

130

148

124

100

 80

70

60

58

58

56

54 

52

52

50

48

47

46 

15

2,732

88.1

5,420

Feb.

50

S3

60

60

60

65

70

75 

80

85

90

96

187

375

896

1,100

856

522

396

355

360

375

517

863 

1,630

1,870

2.190

2,120

-

15,463

552

30,670

Mar.

1,830

1,540

1,270

1,010

967

1,450

1,930

2.090 

1,840

1,590

1,290

 1,140

1,010

902

896

960

1,080

993

808

688

622

580

550

512 

484

500

550

500

446

451 

484

30,963

999

61,410

Apr.

556

658

736

766

676

580

550

539 

500

484

 478

473

473

495

473

440

418

407

478

604

772

889

928

974 

341

790

592

539

522

539

18,270

609

36,240

May

580

628

658

664

634

580

580

610 

628

688

718

724

706

652

676

 628

568

495

473

712

850

882

960

1.010 

986

908

784

658

586

506 

568

21,300

687

42,250

June

1i9"8~ 652

604

616

610

568

517

512 

355

276

434

562

495

412

325

315

330

276

249

163

175

130

57

fo

75

75

75

102

124

9,806

327

19,450

July

108

82

85

96

124

155

200

TTT

127

130

99

88

82

80

82

82

 90

82

75

70

70

68

65

63 

48

41

17

11

17

39 

68

2,561

82.6

5,080

Aug.

159

TTT

80

50

72

78

80

75 

46

39

41

37

34

4T

44

42

39

80

114

70

59

80

80

72

90

111

90

108

111

90 

63

2,292

73.9

4,550

Sept.

52

52

54

57

61

80

152

105 

82

78

59

63

61

57

61

88

70

85

78

70

70

72

72

 75 

85

88

88

99

117

141

2,372

79.1

4,700

Calendar year 1956: Max 3,250 Mln 26 Mean 474 Ac-ft 344,400

Water year 1956-57: Max 2,190 Mln 11 Mean 335 Ac-ft 243,300

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 6-11, Jan. 6-14, Jan. 17 to Feb. 11.
390 SACRAMENTO RIVER BASIN

Pit River near Bieber, Calif.

Location. Lat 41°00' , long 121°09', in NW£ sec. 34, T. 37 N. , R. 7 E., on right bank 

1.5 miles upstream from Spring Gulch and 8 miles south of Bieber.

Drainage area. 2,970 sq mi, approximately, excluding Goose Lake basin.

Records available. January 1904 to September 1908, December 1913 to August 1914, September 1921 to September 1926, November 1928 to September 1931, October 1951 to September 

1957.

Gage. Water-stage recorder. Altitude of gage is 4,100 ft (from river-profile map). 

Prior to November 1928, staff gage at same site and datum.

Average discharge . 16 years (1904-6, 1907-8, 1921-26, 1929-31, 1951-57), 431 cfs 

(312,000 acre-ft per year).

Extremes. Maximum discharge during year, 5,460 cfs Feb. 28 (gage height, 8.40 ft); minimum, 1.8 cfs Aug. 9, 10, 15, 16.

1904-8, 1913-14, 1921-26, 1928-31, 1951-57: Maximum discharge, 33,800 cfs Mar. 19, 

1907 (gage height, 16.7 ft), from rating curve extended above 15,000 cfs by logarithmic plotting; no flow at times in 1923-24, 1926/1929-31, 1955.

Remarks. Records good except those for periods of ice effect, which are fair. Flow regulated by many small reservoirs (total capacity now about 201,000 acre-ft). Diversions 

for irrigation of about 33,000 acres between stations near Canby and near Bieber.

Revisions (water years).--WSP 881: Drainage area. WSP 1285: 1907, 1930.

Rating tables, water year 1956-57, except periods of ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 28 Peb. 28 to Sept. 30

2.7 

2.9 

3.2 

3.6 

4.0 

5.0 

6.0 

7.0 

9.0

64

96

156

248

390

980

1,870

3,100

6,780

1.7

1.8

1.9

2.0 

2.2 

2.5 

2.8 

3.2

1.2

2.5

4.8

9.0

21

42

79

3.6 

4.0 

4.5 

,5.0 

6.0 

7.0 

8.5

268

425

685

1,040

1,950

3,150

5,660

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

100

108

106

98

91

86

82

*79

72

12

79

82

132

160

174

182

130

93

120

222

224

148

16O

138 

134

154

163

163

169

230

339

4,288

138

8,510

Nov.

358

362

455

470

378

335

342

266

260

275

240

225

220

215

209

196

196

189

*191

185

167

154

150

158 

165

165

165

158

152

154

7,155

238

14,190

Dec.

158

163

152

152

142

130

120

120

125

*140

180

260

460

827

1,060

1,040

1,010

820

535

386

331

288

248

222

215

202

204

207

198

202

211

10,508

339

20,840

Jan.

213

213

207

182

170

150

140

130

130

140

150

160

180

227

260

270

*240

200

165

150

140

130

120

110 

105

100

100

100

105

110

125

4,922

159

9,760

Peb.

115

110

105

105

115

125

135

145

155

165

175

190

346

525

1,200

1,780

2,130

1,950

1,370

980

775

762

775

1,130 

2,760

4,240

4,760

5.200

-

32,323

1,154

64,110

Mar.

5.950

5,150

2,650

2,400

2,710

3,120

3,210

3,030

2,930

2,810

 2,540

2,270

2,270

2,210

1,990

1,910

1,860

1,820

1,720

1,510

1,310

1,190

1,060

998 

930

900

885

900

871

857

952

60,893

1,964

120,800

Apr.

1,130

li,190

1,170

1,140

1,140

1,100

960

878

829

776

»730

704

692

685

737

724

667

661

750

1,020

1,200

1,320

1,400

1,450 

1,380

1,320

1,210

998

829

704

29,474

982

58,460

May

655

718

737

782

843

836

829

822

796

796

836

878

885

864

*718

485

B23

857

802

802

892

1,010

1,130

1,260 

1,500

1,210

1,250

1,100

871

620

704

27,117

875

53,790

June

625

685

802

425

257

836

550

510

540

510

394

243

173

355

351

132

122

505

382

380

320

165

124

124 

118

132

112

110

loo

li

10,161

339

20,150

July

45

36

34

,70

140

64

29

33

68

78

54

43

51

51

86

70

41

*60

45

37

32

31

33

47 

50

28

34

36

20

14jy.

1,471

47.5

2,920

Aug.

9.6

7.9

7.0

6.2

5.4

5.1

5.8

7.0

3.4

2.4

3.6

6.2

3.4

3.4

2.5

2.2

2.6

3.6

3.9

4.5

6.2

8.4

11

9.6

11

14

18

T.9

3.2

2.0

TA

189.4

6.11

376

Sept.

2.6

4.5

7.9

8.4

7.4

11

19

23

28

7.9

6.6

5.4

21

30

27

22

26

38

100

100

52

38

*30

28 

28

29

33

40

54

76

903.7

30.1

1,790

Calendar year 1956: Max 5,400 Min 1.2 Mean 924 Ac-ft 670,800

Water year 1956-57: Max 5,200 Min 2.0 Mean 519 Ac-ft 375,700

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by ice Dec. 6-11, Jan. 5-13, Jan. 16 to Feb. 12.
SACRAMENTO RIVER BASIN 391

Hat Creek near Hat Creek, Calif.

Location.--Lat 40Ml' , long 121 °25', In SEij sec. 28, T. 33 N., R. 5 E., on right bank 

1 mile northeast of Old Station Post Office and 8 miles southeast of Hat Creek Post 

Office.

Drainage area. 122 sq ml, approximately; hydrologic drainage boundary uncertain owing to 

ground-water exchange.

Records available. July 1926 to September 1957.

Gage. Water-stage recorder. Altitude of gage Is 4,300 ft (from topographic map). July 

T926 to April 1928 at site 0.5 mile upstream at different datum.

Average discharge. 30 years (1926-29, 1930-57), 128 cfs (92,670 acre-ft per year).

Extremes.--Maximum discharge during year, 430 cfs May 18 (gage height, 3.57 ft); minimum, 

134 cfs Sept. 1, 2, 3.

1926-57: Maximum discharge, 3,320 cfs Dec. 11, 1937 (gage height, 7.75 ft, In gage 

well, affected by drawdown), from rating curve extended above 160 cfs on basis of slopearea determination of peak flow; minimum, 67 cfs Sept. 7, 1934.

Remarks.--Records excellent. Diversions for Irrigation of about 260 acres above station. 

Revisions (water years).--WSP 1395: Drainage area, 1938.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, in cubic feet per second)

2.4 

2.8 

3.2 

3.5

129

213

320

408

Discharge, in cubic feet- per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

159

159

159

159

159

157

TS5

161

*161

167

167

163

163

161

159

159

159

161

161

161

161

163

165

161

165

169

167

163

163 

171 T5B"

5,027

162

9,970

Nov.

TS6- 165

163

163

163

163

163

161

161

163

163

163

161

161

159

159

159

159

155

TBT

157

157

157

157

155

155

155

155

157

155

4,784

159

9,490

Dec.

155

155

157

159

155

151

147

145

TIT

157

*167 165"

165

161

159

157

157

157

155

153

155

149

153

153

153

151

149

149

153

153 

153

4,795

155

9,510

Jan.

153

151

151

149

147

147

147

149

149

147

147

149

153

149

149

149

151

151

151

155

151

151

151

151

151

151

151

149

151

151

151

4,653

150

9,230

Feb.

151

153

151

151

151

151

151

149

T3S

149

*149

149

153

155

153

151

149

149

149

149

149

149

159

203

157

203

187

174

-

4,423

158

8,770

Mar.

167

165

163

163

171

165

163

163

165

161

159

161

161

161

161

161

159

159

159

159

159

157

157

157

157

157

157

159

161

159

161

4,987

161

9,890

Apr.

159

157

TBT

159

161

161

159

159

159

*161

161

161

161

167

161

159

159

159

159

159

157

147

159

161

161

163

167

167

174

162

4,846

162

9,610

May

185

185

174

ITT

187

196

196

194

187

182

180

177

176

176

*174

177

185

350

295

220

199

194

187

189

199

211

216

216

213

216

220

6,233

201

12,360

June

230 '228"

220

218

226

218

218

218

218

218

208

208

206

199

194

187

182

189

189

185

182

182

182

185

182

182

182

182

182

17_7

5,977

199

11,860

July

169

167

163

161

159

157

155

155

155

161

163

163

161

161

159

159

159

*159

159

151

145

142'

140

T40

140

142

142

140

140

145

149

4,761

154

9,440

Aug.

151

TBT

151

151

151

151

151

151

145

142

142

142

140

140

140

140

143

143

145

147

149

147

147

147

147

145

145

145

142

138 T ~ o loo

4,507

145

8,940

Sept.

15,6

136

136

136

136

138

142

143

145

145

145

147

147

147

145

147

147

145

142

140

138

138

*138

138

138

140

218

177

165

163

4,398

147

8,720

Calendar year 1956: Max 309 Mln 134 Mean 176 Ac-ft 127,700

Water year 1956-57 : Max 350 Mln 136 Mean 163 Ac-ft 117,800

Peak discharge (base, 170 cfs).--Feb. 24 (4 p.m.) 241 cfs (2.91 ft); May 18 (6 p.m.) 430 cfs 

(5.57 ft); June 1 (10 p.m.) 252 cfs (2.95 Ft); Sept. 27 (5 p.m.) 505 efs (5.14 ft).______

* Discharge measurement made on this day.
392 SACRAMENTO RIVER BASIN

Pit River below Pit No. 4 Dam, Calif.

Location.--Lat 40°59 I , long 121°47', in Sw£ sec. 17, T. 36 N., R. 2 E., on right bank 

1 mile downstream from Pit No. 4 Dam and 3 miles downstream from Screwdriver Creek 

and Pit No. 3 powerhouse.

Drainage area.--4,860 sq mi, approximately, excluding Goose Lake basin.

Records available.--July 1927 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 2,345 ft (from river-profile map).

Average discharge. 46 years (1911-57), 2,665 cfs (1,929,000 acre-ft per year) including 

diversion to Pit No. 4 powerhouse. Period 1911-27 extrapolated on basis of records 

for Pit River at Big Bend.

Extremes.--Maximum discharge during year, 7,570 cfs Feb. 26 (gage height, 10.81 ft); mlnimum daily, 58 cfs Mar. 26, 27.

1927-57: Maximum discharge, 30,200 cfs Dec. 12, 1937 (gage height, 17.90 ft), from 

rating curve extended above 8,000 cfs on basis of velocity-area studies; minimum 

daily, 54 cfs Oct. 27, 1955.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Flow regulated by many small reservoirs and powerplants (total usable reservoir 

capacity, about 200,000 acre-ft). Many diversions above station; diversion to Pit 

No. 4 powerhouse began June 9, 1955 (see adjustment figures, not previously published, 

in table below for period June 1955 to September 1956.

Cooperation. Water-stage-recorder graph and three discharge measurements furnished by 

Pacific Gas & Electric Co., in connection with a Federal Power Commission project.

Revisions (water years).--WSP 843: 1935(M).

Diversion to Pit No. 4 powerhouse. June 1955 to September 1956

Month

June 1955. ....................

July. .........................

Water year 1954-55. .........

Calendar year 1955. .........

March. ........................

June ..........................

July. .........................

Water year 1955-56. .........

acre-feet

45,010 

78,210 

102,800 

31,660 

257,700

11,120 

132,100 

178,200 

579,100

224,OOO 

204,200 

22O,60O 

207,100 

209,900 

165,900 

133,500 

126,200 

123,300 

1,936,000

Adjustedt

Mean

2,235 

1,762 

1,793 

612 

2,224

447 

2,302 

5,904 

2,347

6,802 

5,052 

6,677 

5,798 

4,612 

2,916 

2,323 

2,195 

2,207 

3,937

Runoff In 

acre-feet

133,OOO 

108,300 

110,200 

36,410 

1,611,000

27,490 

137,000 

362,900 

1,699,000

418,100 

290,700 

410,400 

345,000 

283,500 

173,500 

142,800 

134,900 

131,300 

2,858,000

records adjusted for diversion.
SACRAMENTO RIVER BASIN 

Pit River below Pit No. 4 Dam, Calif.--Continued

393

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, in cubic feet per second)

4.2 

4.6 

5.0 

5.5 

6.0

48

120

215

395

645

7.0

8.0

10,0

11.0

1,390 

Z.490 

5,890 

7,990

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Ac-ft

(t)

Oct.

122

106

106

106

104

102

102

100

»100

100

98

98

98

98

94

96

100

98

96

98

96

100

102

90

100

102

102 

104

96

143

106

3,163

102

6,270

159,400

Nov.

152

fa

74

72

72

*72

76

*69

62

59_

59

59

59

59

59

59

61

61

59

61

61

61

61

61

61

61

61 

61

61

61

1,992

66,4

3,950

156,200

Dec.

61

59

61

62

62

61

62

a62

a62

a64

a66

a67

a66

a64

a62

a62

62

126 ~&2

61

61

61

59

59

61

61

59 

61

61

61

61

1,979

63.8

3,930

162,200

Jan.

61

6T

62

62

64

64

66

64

64

 64

64

66

71

67

67

66

64

66

64

66

66

64

a64

a66

66

a65

2,009

64.8

3,980

152,300

Feb.

66

66

66

a64

> a67

J

66

67

66

66

354

290

114

72

71

114

2,640

4,870

6 ,830 

6,830

_

23,382

835

46,380

159,200

Mar.

5,470

3,720

2,740

2,060

2,490

3,320

3,350

3,050

2,630

2,740

2,300

*2,290

2,270

2,080

1,540

1,400

1,260

1,150

1,040

874

574

394

238

174

102

58

58 

59

59

59

152

49,701

1,603

98,580

228,500

Apr.

124

188

194

118

104

102

102

118

120

100

104

106

108

118

110

108

108

108

106

106

106

106

165

157

218

189

126 

122

139

157

3,837

128

7,610

214,900

May

162

164

159

162

162

159

162

159

159

»159

159

162

162

159

159

159

157

162

157

159

162

T57

152

157

157

155

155 

155

157

152

157

4,908

158

9,730

201,800

June

159

159

159

159

159

133

157

157

159

157

155

162

169

159

164

162

162

157

159

155

152

157

152

157

157

157

157 

157

159

155

4,722

157

9,370

136,900

July

155

155

128

T59

155

157

152

152

»155

157

157

155

155

152

152

157

155

155

157

155

155

155

155

152

152

155

148 

135

141

141

141

4,705

152

9,330

122,800

Aug.

141

143

137

128 T5~5

139

139

139

146

143

141

152

157

162

162

139

152

164

166

164

 164

164

164

169

166

164

169

164

166

164

166

4,769

154

9,460

120,300

Sept.

166

166

155

152

152

171

174

169

166

164

164

166

166

162

159

159

159

159

159

166

166

166

169

166

171

174

176 

TTf

171

174

4,961

165

9,840

116,300

Adjusted for diversion to Pit No. 4 powerhouse

Mean 2,696 2,692 2,702 2,543 3,703 5,322 3,739 3,441 2,459 2,149 2,111 2,119 

Ac-ft 165,700 160,200 166,100 156,300 205,600 327,100 222,500 211,500 146,300 132,100 129,800 126,100

Calendar year 1956: Max 7,680 

Water year 1956-57: Max 6,830

Min 

Min 58

Mean 1,004 Ac-ft 729,600 

Mean 302 Ac-ft 218,400

Adjusted

Calendar year 1956: Mean 3,887 

Water year 1956-57: Mean 2,968

Cfsm 

Cfsrc

In. 

In.

Ac-ft 2,822,000 

Ac-ft 2,149,000

* Discharge measurement made on this day.

t Diversion to Pit No. 4 powerhouse, in acre-feet, furnished by Pacific Gas & Electric Co. 

a No gage-height record; discharge estimated on basis of recorded range in stage and records of 

release from Pit No. 4 dam.
394 SACRAMENTO RIVER BASIN

Pit River at Big Bend, Calif.

Location. --Lab 41°01', long 121° 55', in sec. 31, T. 37 N., R. IE., on left bank at Big 

Bend, 0.5 mile downstream from Nelson Creek and 1 mile upstream from Kosk Creek.

Drainage area. 4,920 sq mi, approximately, excluding Goose Lake basin.

Records available. October 1910 to September 1957. Published as "at Henderson" 1910-23.

Gage. --Water-stage recorder. Datum of gage is 1,674.47 ft above mean sea level, datum of 

 T929. Prior to Dec. 28, 1912, staff gage and Dec. 28, 1912, to June 21, 1924, waterstage recorder, at same site at datum 7.69 ft higher.

Extremes. Maximum discharge during year, 9,820 cfs Jan. 27 (gage height, 11.98 ft); minimum daily, 46 cfs Jan. 10, 27, 28.

1910-57: Maximum discharge, 34,200 cfs Dec. 12, 1937 (gage height, 16.26 ft), from 

rating curve extended above 12,000 cfs on basis of velocity-area studies; minimum 

daily, 34 cfs Mar. 29, 1955.

Remarks . Records good. Flow regulated by many reservoirs and powerplants (total usable 

reservoir capacity, about 200,000 acre-ft). Many diversions above station; diversion 

to Pit No. 5 powerhouse began May 1, 1944. For record closely comparable with previous 

record of total flow at Big Bend, see Pit River below Pit Mo. 4 Dam, preceding page.

Cooperation. --Water- stage-recorder graph and one discharge measurement furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Revisions (water years) .--WSP 1345: 1911, 1914(M), 1916(M), 1917, 1928, 1935-36(M).

Rating table, waber year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

4.1 

4.5 

5.0 

5.5

153

246

6.0 

6.5 

7.0 

8.0

390

610

910

1,760

9.0

10.0

11.0

12.0

2,960

4,600

6,750

9,900

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

137

140

140

141

141

141

138

135

138

167

153

138

141

142

141

*140

140

141

140

125

132

135

135

134

135

150

144

141

141

TT2

4,519

146

8,960

Nov.

142

127

121

117

114

110

109

107

113

111

113

111

110

110

106

105

102

100

101

105

102

106

105

107

102

104

104

104

104

98

3,270

109

6,490

Dec.

56

56

54

61

58

56

56

54

52

53

54

58

71

50

56

56

54

53

53

54

53

55

54

53

52

50

50

49

49

50

49

1,689

54.5

3,350

Jan.

50

49

51

51

50

50

49

49

48

*46

49

57

94

79

85

72

62

58

58

62

62

53

51

50

49

47

46

46

54

56

1,739

56.1

3,450

Feb.

56

5B~ 53

55

55

53

56

67

60

58

60

61

69

80

87

90

88

85

176

489

330

376

406

1,330

3,520

5,820

7,670

7,120

38,425

1,015

56,380

Mar.

5,860

4,370

3,400

2,900

3,520

4,300

4,230

3,850

3,480

3,370

3,190

*3,480

3,250

2,960

2,410

2,240

2,140

1,860

1,740

1,200

802

936

1,180

911

620

296

220

181 192-

210

349

69,647

2,247

138,100

Apr.

474

693

694

Fso

542

538

534

178

135

152

132

159

144

202

159

155

159

167

183

171

166

245

550

615

655

642

515

408

220

210

10,511

544

20 , 450

May

210

257

214

204

204

204

200

197

200

*200

193

192

192

192

188

183

178

222

242

2~2TT

224

210

204

202

200

200

195

190

188

184

178

6,253

202

12,400

June

179 ITS'

176

172

167

169

169

171

169

167

169 166'

167

159

159

152

153

153

158

152

150

150

144

147

148

150

148

155

147

146

4,788

160

9,500

July

142

150

148

150

146

138

138

144

*147

147

148

144

141

151

140

140

144

140

144

142

140

140

141

141

144

146

142

132

138

140

141

4,409

142

8,750

Aug.

141

141

157

131

138

141

138

138

138

131

131

134

155

158

155

158

157

158

158

158

138

157

138

137

140

137

137

137

158

138

138

4,251

157

8,450

Sept.

151

150

130

130

131

128

128

124

128

128

128

128

132

128

128

128

130

130

130

151

128

124

150

127

*135

147

190

ISO

141

142

3,995

133

7,920

Calendar year 1956: Max 8,450 Min 49 Mean 1,210 Ac-ft 878,100

Water year 1956-57: Max 7,670 Min 46 Mean 393 Ac-ft 284,200

* Discharge measurement made on this day.
SACRAt

Pit River near

Location. Lat 40°51', long 121°59', in 

1 mile upstream from Cow Canyon Greet

ENTO RIVER BASIN 395

Montgomery Creek, Calif.

ffi£ sec. 32, T. 35 N., R. 1 W., on left bank 

and 3.5 miles west of town of Montgomery Creek.

Drainage area. 5,170 sq mi, approximately, excluding Goose Lake basin. 

Records available. December 1944 to September 1957.

Gage. Water-stage recorder. Datum of gage is 1,075.00 ft above mean sea level (levels 

b~y Bureau of Reclamation).

Average discharge.--12 years (1945-57), 3,750 cfs (2,715,000 acre-ft per year).

Extremes.--Maximum discharge during year, 20,700 cfs Feb. 26 (gage height, 9.98 ft); minimum, 595 cfs Dec. 28.

1944-57: Maximum discharge, 37,100 cfs Dec. 23, 1955 (gage height, 14.12 ft), from 

rating curve extended above 24,000 cfs by logarithmic plotting; minimum, 570 cfs 

Oct. 21, 1945.

Remarks. Records excellent. Plow regulated by many small reservoirs and several powerplants above station since beginning of record. Many diversions above station for 

irrigation. Concerning regulation and diversions see Remarks for stations upstream. 

This station is Just above pool stage when Shasta Lake is full. Records of water 

temperatures for the water year 1957 are given in WSP 1523.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 26

2.1 

2.5 

3.0 

4.0 

5.0 

7.0 

9.0

660

970

1,490

2,840

4,640

9,180

15,300

Peb. 26 to Sept. 30

5.0 4,640 

6.0 6,880 

8.0 13,100 

10:0 20,800 

Note. Same as

preceding table

below 5.0 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3

4

5

6

7

8

9

10

11 

12

13 

14

15

16

17

18

19 

20

21

22

23

24

25

26

27 

28

29

30 

31

Total

Mean

Ac-ft

Oct.

2,800 

3,140 

3,060

3,070

3,500

3,320

764

2,560"

2,840

2,550

2,140 

2,070

2,160 

3,820

3,840

3,760

3,340

3,860

2,940 

2,850

2,120

2,660

3,280

2,770

1,940

2,290

3,810 

3,690

2,930

3,250 

4.180

91,304

2,945

181, 100

Nov.

3,570 

3,980 

3,790

3,190

2,650

2,000

1,970

2,640

3,590

3,650

2,980 

3,620

3,340 

2,600

2,010

2,240

1,730

2,520

3,140 

3,450

3,380

3,020

3,420

3,230

1,680

2,380

2,700 

2,850

2,920

2,960

87,200

2,907

173,000

Dec.

2,900 

3,590 

2,630

2,260

2,280

2,530

2,720

2,810

1,840

2,630

2,860 

3,190

3,710 

3,270

3,150

3,070

2,940

2,160

*5 , 880 

3,860

3,580

3,620

3,540

3,100

2,640

3,050

2,880 

2,760

2,240

1,240 

2,950

89,880

2,899

178,300

Jan.

1,760 

2,770 

3,510

3,680

3,180

2,760

2,640

2,030

1,990

2,010

2,470 

3,660

4,520

4,020

3,600

3,150

2,980

2,860

1,860 

1,820

2,920

2,900

2,890

2,920

3,540

2,800

*1,560 

2,720

2,780

2,820 

3,410

88,130

2,843

174,800

Peb.

3,010 

1,190 

684 2,'56"0~

3,450

3,180

3,280

3,380

2,150

1,410

2,750 

3,150

3,140 

3,520

3,640

3,930

3,990

4,080

4,150 

4,540

4,780

5,260

5,900

10,700

11,700

15,300

16,900 

14,200

-

.......

146,224

5,222

290,000

Mar.

*12,500 

10, 100 

9,060

9,210

10, 100

10,600

10,400

9,750

9,420

8,850

9,120 

10,900

9,480 

8,730

8,210

7,990

7,650

7,140

6,910 

6,600

6,240

5,880

5,680

5,440

5,420

5,000

4,840 

4,800

4,940

4,840 

4,900

240,500

7,758

477,000

Apr.

5,180 

*5,160 

5,180

5,020

4,920

4,880

4,800

4,500

4,420

4,420

4,520 

4,480

4,400 

5,460

4,880

4,820

4,920

5,040

5,140 

5,100

5,040

5,000

5,240

5,240

5,220

5,180

5,060 

4,960

4,660

4,620

147,260

4,909

292,100

May

4,480 

*4,880 

4,800

4,380

4,460

4,420

4,340

4,400

5,900

5,580

4,150 

3,940

3,610 

4,280

4,130

4,160

5,720

4,970

5,440 

5,060

5,140

4,720

4,920

4,660

4,520

4,740

4,520 

4,640

4,600

4,540 

4,200

158,080

4,454

273,900

June

4.260 

4,130 

4,220

5,900

5,750

5,420

5,940

5,490

1,690

5,220

4,150 

5,410

5,700 

5,200

1,540

1,770

2,810

2,780

5,000 

2,970

3,390

1,740

814

2,680

2,820

3,150

5,070 

3,540

1,280

811

88,605

2,954

175,700

July

2,740 

5,650 

5,640

5,400

5,520

878

705

2,630

3,290

3,400

3,190 

3,360

885 

738

2,370

2,570

2,830

2,740

2,650 

1,110

1,080

2,870

2,860

2,990

2,970

2,800

1,280 

706

2,650

2,910 

2,890

76,124

2,456

151,000

Aug.

2,850 

*2,890 

1,410

952

2,480

2,710

2,800

2,750

2,760

1,590

902 

2,750

2,800 

2,710

2,790

2,800

1,500

680 2,7573' 

2,890

3,080

2,840

2,970

934

846

2,680

2,710 

2,900

2,990

5,200 

ZJ320

73,004

2,355

144,800

Sept.

1,260 

1,050 

2,450

2,620

2,560

2,710

2,590

1,080

2,160

2,650

2,510 

2,530

2,710 

2,300

1,160

2,550

2,490

2,640

2,650 

2,550

2,050

1,270

2,640

2,770

3,280

5,390

5,700 

2,180

1,200

5,220

70,460

2,549

159,800

Calendar year 1956 ; Max 20,000 Min 695 Mean 5,053 Ac-ft 3,668,000

Water year 1956-57: Max 16,900 Min 680 Mean 3,662 Ac-ft 2,652,000

* Discharge measurement made on this day.
396 SACRAMENTO RIVER BASIN

Squaw Creek above Shasta Lake, Calif.

Location. Lat 40°51'25", long 122°07'10", in Sw£ sec. 29, T. 35 N., R. 2 W., on left 

bank 1.3 miles upstream from Salt Creek, about 2 miles upstream from Shasta Lake, and 

10 miles west of town of Montgomery Creek.

Drainage area. 65.3 sq mi.

Records available. December 1944 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,170 ft (from topographic map).

Average discharge. 12 years (1945-57), 229 cfs (165,800 acre-ft per year).

Extremes. Maximum discharge during year, 7,080 cfs Feb. 24 (gage height, 16.45 ft), from 

rating curve extended above 4,200 cfs as explained below; minimum, 10 cfs Jan. 6 

(result of freezeup).

1944-57: Maximum discharge, 17,800 cfs Dec. 21, 1955 (gage height, 21.90 ft), from 

rating curve extended above 4,200 cfs on basis of slope-area determination at gage 

height 18.90 ft; minimum, 10 cfs Sept. 22-25, 1949, Jan. 3, 1950, Jan. 6, 1957.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Small diversions above station for irrigation.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

5.9 

6.2

.0 

7.5

8.0

9.0

10.0

12.0

15.0

255

555

1,010

2,240

5,060

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

16

16

16

16

16

16

16

18

18

35

55

25

22

21

20

20

19

21

21

20

19

19

21

22

20

32

32

24

28 

~55 204

908

29.3

1,800

Nov.

43- 47

38

35

31

29

28

26

26

26

25

24

24

24

23

23

23

23

22

22

22

22

22

22 

22

21

2T

21

21

21

777

25.9

1,540

Dec.

21

21

21

26

29

25

23

21

21

21

21

21

22

22

21

21

21

*21

21

21

21

20

20

20 

20

20

19

19

19

19

19

657

21.2

1,300

Jan.

19

19

19

19

18

17

19

21

20

17

26

101

213

154

225

111

76

62

55

69

62

53

49

46 

42

38

32

37

32

31

31

1,733

55.9

3,440

Feb.

32

32

30

29

29

30

32

177

121

90

79

79

87

100

105

101

93

84

76

77

176

382

865

4,550 

2,870

4,010

2,640

1,210

-

17,986

642

35,670

Calendar year 1956 : Max 8,060 Mln 16

Mar.

*779

583

503

644

860

761

680

587

774

707

992

1.950

1,110

802

756

875

797

716

640

571

492

431

385

347 

319

291

270

255

266

242

229

19,614

633

38,900

Apr.

215

*201

191

182

175

168

159

152

147

141

135

143

138

321

246

237

344

434

492

499

447

397

352

314 

284

264

242

225

213

217

7,675

256

15,220

Mean 278

May

201

294

*270

251

233

219

205

201

193

180

171

162

179

180

161

154

 srr 151

615" 779

506

428

373

333 

294

268

242

225

207

193

180

8,725

281

17,310

June

170 159-

147

139

131

125

121

114

114

*108

95

90

85

82

78

74

72

69

67

65

62

60

57

55 

53

51

50

49

49

48

2,639

88.0

5,230

July

48

47

47

46

45

44

43

42

41

40

40

39

40

42

40

38

36

35

35

35

35

36

35

33 

32

31

31

31

30

30

2JS

1,176

37.9

2,330

Aug.

*2928"

27

26

28

27

27

26

26

26

26

25

24

24

24

23

23

22

22

22

21

21

21

21 

21

21

21

21

20" 20

20

733

23.6

1,450

Sept.

20

19

19

18

18

18

18

17

17

ii

16

17

17

17

16

17

17

18

18

17

17

16

16

16

16

35

204

86

52

40

848

28.3

1,680

Ac-ft 201,800

Water year 1956-57 : Max 4,350 Mln 16 Mean 174 Ac-ft 125,900

Peak discharge (base, 2,000 cfs). Feb. 24 (5 p.m.) 7,080 cfs (16.45 ft); Mar. 12 (l a.m.)

2,850 efs (12.74 ft)._________________________________________ _________________

* Discharge measurement made on this day.

Note.--No gage height record June 10 to July 31j discharge estimated on basis of recorded range In 

stage and records for Samramento River at Delta.
SACRAMENTO RIVER BASIN 397

McCloud River beiow Big Springs, near McCloud, Calif.

Location. Lat 41°13'40", long 122 002'45", in NE£ sec. 14, T. 39 N. , R. 2 W. , 1,400 ft 

downstream from lower Big Springs and 5? miles southeast of McCloud.

Drainage area. 340 sq mi, approximately.

Records available . January 1955 to September 1957.

Gage. Water-stage recorder. Datum of gage is 2,950.8 ft above mean sea level (riverprofile survey) .

Extremes. Maximum discharge durUig year, 3,970 cfs Feb. 26 (gage height, 3.97 ft); minimum, 653 cfs Sept. 27.

1955-57: Maximum discharge, 10,100 cfs Dec. 21, 1955 (gage height, 6.80 ft), from 

rating curve extended above 6,200 cfs on basis of slope-area determination of peak 

flow; minimum daily, 568 cfs Nov. 9, 1955.

Remarks . Records good except those for periods of no gage-height record or indefinite 

stage -discharge relation, which are fair. One small diversion above station for 

domestic and municipal use.

Cooperation. Water-stage-recorder graph and 10 discharge measurements furnished by California-Oregon Power Co.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1-12)

1.4 

1.7 

2.0 

3.0 

4.0

660

900

1,180

2,360

4,020

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19 

20

21

22

-3

24

25

26 

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

732

732

732

732

732

732

732

724

724

732

732

724

724

724 

724

724

716

716

716 

716

716

716

724

716

70S

708 

708

708

716

732

724

22,396

722

44,420

Nov.

716

716

716

716

*716

716

716

724

724

724

732

732

740

740 

740

740

740

748

740 

716

716

708

708

700

700

692 652"

700

700

700

21,568

719

42,780

Dec.

700

700

700

700

692

708

708

 70S

708

716

756 748-

740

740 

740

748

740

740

740 

740

748

748

748

748

748

748 

740

740

732

732

732

22,636

730

44,900

Jan.

732

724

716

7l6

716

716

 716

716

724

732

732

732

756

756 

748

740

740

740

748 

748

748

740

740

740

740

740 

740

740

730

730

730

22,766

734

45,160

Feb.

730

730

720

720

720

720

720

720

720

720

720

720

710

710 

710

710

700

 750

700 

710

720

780

1,100

2,400

2,200

*2.660 

2,270

1,380

-

27,820

994

55,180

Mar.

1,130

1,030

954

945

1,050

1,060

1,080

990

1,050

990

963

1,240

1,020

936 

900

884

844

820

812 

*527

927

900

892

884

884

884 

884

884

909

918

927

29,518

952

58,550

Apr.

918

900

892

892

892

892

8S4

884

876

868

860

S52

972

1.140 

1,666

 990

990

1,010

990 

963

936

918

900

892

876

868 

860

860

860

868

27,603

920

54,750

May

836

909

909

860

836

828

820

812

820

804

796

756" 780

836 

812

788

780

1,160

1.260 

1,110

1,040

963

*936

936

860

852 

836

828

820

804

788

27,215

878

53,980

June

780

844

544

836

828

820

812

812

804

812

796

796

796

788 

780

780

772

772

772 

764

764

772

772

764

740

756 

756

*772

772

788

23,664

789

46,940

July

772

756

756

764

764

772

780

Tf?

772

780

772

772

772

764 

764

764

772

772

764 

756

756

756

748

*748

748

748 

756

756

756

748

748

23,628

762

46,870

Aug.

740

740

732

732

724

724

724

716

716

716

716

716

716

716 

716

716

716

716

716 

716

708

708

708

708

708

708 

708

*700

T5o

708

708

22,196

716

44,030

Sept.

708

708

708

716

716

716

716

716

716

716

Toa" 700

708

708 

708

716

716

716

708 

708

708

716

708

 708

708

716 

876

e760

e720

e710

21,562

719

42,770

Calendar year 1956: Max 1,970 Mln 692 Mean 903 Ac-ft 655,600

Water year 1956-57: Max 2,660 Mln 692 Mean 802 Ac-ft 580,300

Peak discharge (base. 850 cfs). Feb. 26 (5:30 p.m.) 3,970 cfs (3.97 ft); Mar. 12 (11 a.m.) 

1,360 cfs (2.14 ft); Apr. 14 (l p.m. 

Sept. 27 (l p.m.) 1,500 cfs (2.12 ft

. . . .

1,360 cfs (2.14 ft); Apr. 14 (l p.m.) 1,250 cfs (2.03 ft)j Hay 18 (8 p.m.) 1,510 cfs (2.28 ft)

).

* Discharge measurement made on this day.

e Stage-discharge relation Indefinite; discharge estimated on basis of records for station near 

McCloud.

Note.--Ho gage-height record Jan. 28 to Feb. 17, Feb. 19-25; discharge estimated on basis of 2 discharge measurements and records for station near McCloud.
398 SACRAMENTO RIVER BASIN

Angel Creek near McCloud, Calif.

Location. Lat 41°11'40", long 122°03'25", in SWi sec. 26, T. 39 N., R. 2 W., on right 

bank 500 ft downstream from Pan Gulch, 900 ft upstream from mouth, and 6 miles southeast of McCloud.

Drainage area. 16.8 sq mi.

Records available. January 1955 to September 1957.

Gage. Water-stage recorder. Datum of gage Is 2,739.3 ft above mean sea level (riverprofile survey).

Extremes. Maximum discharge during year, 762 cfs Feb. 24 (gage height, 3.63 ft); minimum, 8.3 cfs, many days in October to January.

1955-57: Maximum discharge, 2,000 cfs Dec. 20, 1955 (gage height, 6.27 ft), from 

rating curve extended above 330 cfs; minimum, 7.2 cfs many days in 1955, 1956.

Remarks. Records good except those for periods of no gage-height record and those above 

900 cfs, which are poor. No storage or diversion above station.

Cooperation. Water-stage-recorder graph and 10 discharge measurements furnished by 

California-Oregon Power Co. in connection with a Federal Power Commission project.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 24 

8.3

Feb. 24 to Sept. 30

0.8 

1.0 

1.3 

1.6 

2.0

91

172

0.8 

.9 

1.1 

1.3 

1.6

7.5

12

25

43

83

2.0 

2.5 

3.0 

3.5

162

300

480

685

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

10

10

10

10

10

9.5

10

10

10

16

16

11

10

10

10

9.5

9.5

10

10

10

10

10

11

11

11

12

11

10

11

24

17

349.5

11.3

693

Nov.

13

12

11

11

11

11

*11

11

11

11

11

11

10

10

10

10

10

10

3T5" 9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

10

309.5

10.3

614

Dec.

9.5

9.5

9.5

10"9-. 5

9.5

*8.9

8.9

8.9

8.9

9.5

10

10

9.5

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8 . 3 6 -i a . o

282.2

9.10

560

Jan.

8.9

8.9

'573" 8.3

a'.z

8.9

*8.9

8.9

8.9

9.5

9.5

10

18

Iff

14

12

12

11

11

10

9

9

9

9

9

9

9

9

9

9

9

312.3

10.1

619

Feb.

9

9

9

9

9

9

9

9

9

9

9

9

9

9

10

10

10

12

*18

24

32

170

525

TTT

*518

305

181

-

2,227

79.5

4,420

Mar.

140

iZT

ill

102

98

95

88

85

115

104

102

121

108

95

90

83

77

73

73

73

*69

62

58

54

53

53

51

5T

53

52

52

2,568

82.8

5,090

Apr.

51

48

47

46

46

45

43

41

41

40

39

47

52

104

*85

78

80

86

95

92

90

87

84

82

80

80

80

80

80

80

2,029

67.6

4,020

May

84

90

90

86

84

84

82

82

82

80

80

80

80

80

80

85

100

120

130- 135

*119

110

97

88

80

73

69

64

62

59

55

2,690

86.8

5,340

June

56" 52

47

46

44

42

41

40

40

38

36

34

33

33

sa

31

30

30

29

29

28

27

27

27

26

*25

24

23

22

22

1,008

33.6

2,000

July

21

21

20

19

19

18

18

18

17

17

17

17

18

18

18

18

17

18

17

17

17

17

17

*17

17

17

16

16

16

16

15

544

17.5

1,080

Aug.

15

15

16

16

16

15

15

14

14

14

14

14

14

13

13

13

13

13

13

13

13

13

13

13

13

13

12

*12

12

12

421

13.6

835

Sept.

12

12

12

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

10

11

11

*10

11

19

5125-

19

17

417

13.9

827

Calendar year 1956 -. Max 486 Mln 7.8 Mean 51.7 Ac-ft 37,530

Water year 1956-57 : Max 525 Mln 8.3 Mean 36.0 Ac-ft 26,100

Peak discharge (base, 100 cfs). --Feb. 24 (1:30 p.m.) 762 cfs (3.63 ft); Mar. 9 (9 a.m.) 123 cfs 

(1.82 ft); Mar. 11 (ll p.m.) 130 cfs (1.85 ft); Apr. 14 (4 a.m.) 119 cfs (1.80 ft); probably

May 19 (time and discharge unknown).

* Discharge measurement made on this day. 

Note. Ho gage-height record Jan. 19 to F

y.

nuie. nu gage-tie J.BHI. reuora Jan. j.3 to Feb. 19, Apr. 20 to May 20; discharge estimated on basis 

of 2 discharge measurements and records for McCloud River near McCloud and below Big Springs near 

McCloud.
SACRAMENTO RIVER BASIN 399

McCloud River near McCloud, Calif.

Location.--Lat 41°11'20", long 122°03'50", in NE£ sec. 34, T. 39 N., R. 2 W., on right 

bank 0.4 mile downstream from Angel Creek and 6 miles southeast of McCloud.

Drainage area. 382 sq mi.

Records available . April 1931 to September 1957.

Gage. Water-stage recorder. Datum of gage is 2,711.6 ft above mean sea level (riverprofile survey).

Average discharge . 26 years, 876 cfs (634,800 acre-ft per year).

Extremes.--Maximum discharge during year, 4,570 cfs Feb. 26 (gage height, 5.21 ft); minimum, 810 cfs Jan. 27.

1931-57: Maximum discharge, 11,800 cfs Dec. 21, 1955 (gage height, 9.42 ft), from 

rating curve extended above 3,700 cfs on basis of slope-area determination of peak 

flow; minimum, 524 cfs Nov. 23, 24, 1932.

Remarks.--Records good. Two small diversions above station for irrigation, and one 

22-inch pipeline for town of McCloud and millpond.

Revisions (water years). WSP 843: 1936(M). WSP 1091: Drainage area. WSP 1445- 

1940IM).

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

1.5

2.0 

3.0 

4.5

810

1,130

2,030

3,680

Discharge, In cubic feet per second, water year October 1956 to September 1957

Da.y

1 

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27 

28

29

50

31

Total

Mean

Ac-ft

Oct.

924 

924

918

918

*912

912

912

912

912

930

924

912 

906

906

906

906

906

906

900 

894

894

894

894

894

894

906

894 

894

900 

956

906

28,146

908

55,830

Nov.

906

900

894

894

894

894

888

888

888

888

888 

888

882

882

882

882

882

876 

876

876

876

876

876

876

876

870 

864

164 

864

26,490

883

52,540

Dec.

864 

864

864

870

870

870

864

858

864

870

888

876

864

858

858

*858

852

852 

852

846

846

846

846

846

846

840 840"

840 

840

840

26,568

857

52,700

Jan.

840 

840

840

854

854

834

834

834

834

834

840

846 

864

852

846

840

854

834

840 

840

834

834

834

828

828

828

828 

828

828 

822

828

25,914

836

51,400

Feb.

828 

B2~2~ 822

822

822

822

828

854

828

828

822

822 

828

834

*840

840

840

840

846 

852

864

889

1,270

2,960

2,570

5,650

2,920 

1,840

-

33,585

1,199

66,610

Mar.

1,500 

1,570

1,290

1,260

1,360

1,360

1,580

1,500

1,400

1,520

1,300

1,600 

1,360

1,260

1,230

1,190

1,140

1,120

1,110 

1,100

1,090

*1,050

1,030

1,030

1,020

1,020

1,010 

1,010

1,050

1,050 

1,050

37,560

1,205

74, 100

Apr.

1,040 

1,020

1,020

1,020

1,010

1,010

1,010

1,010

1,010

1,010

1,000

1,050 

1,120

1,540

1,260

*1,180

1,200

1,210

1,210 

1,180

1,140

1,120

1,100

1,080

1,060

1,050

1,040 

1,050

1,050

1,070

32,670

1,089

64,800

May

1,080 

1,220

1,180

1,130

1,120

1,110

1,100

1,100

1,100

1,080

1,060

1,050 

1,100

1,120

1,090

1,070

1,070

1,520

1,S50 

1,420

1,320

1,250

1,200

1,150

1,130

1,110

1,100 

1,100

1,090

1,070 

1,060

35,850

1,156

71,110

June

1,040 

1,0 JO

1,030

1,020

1,010

1,000

995

988

988

982

976

*976 

962

956

950

943

943

943

950 

943

936

930

930

930

956

930

936 

950

950 

924

28,937

965

57,400

July

918 

912

912

906

906

906

900

900

894

894

894

894 

888

882

882

882

888

888

882 

876

876

876

882

876

876

876

870

876

870

27,528

888

54,600

Aug.

864 

364

864

864

858

858

864

864

858

858

858

858 

852

858

*858

858

858

858

858 

852

852

852

852

858

858

852

846 

840

840

846

852

26,532

856

52,630

Sept.

846 

840

834

834

840

846

840

840

840

834

834

840 

840

840

834

834

834

828

828 

822

822

822

822

822

822

862

1,050 

876

846 

834

25,286

843

50,150

Calendar year 1956: Max 2,750 Mln 840 Mean 1,151 Ac-ft 820,800

water year 1956-57: Max 3,650 Mln 822 Mean 972 Ac-ft 703,900

Peak discharge (base. 1,000 cfs). --Feb. 26 (6:30 p.m.) 4,570 cfs (5.21 ft); Mar. 12 (9 a.m.)

1,720 ofs (2.69 ft); Apr. 14 (12 m.) 1,450 cfs (2.59 ft); May 18 (7:50 p.m.) 1,830 cfs (2.80 ft);

Sept. 27 (10:30 a.m.) 1,260 cfs (2.17 ft).

Discharge measurement made on this day.
400 SACRAMENTO RIVER BASIN

McCloud River above Panther Creek, near McCloud, Calif.

Location. Lat 41°08'10", long 122°04'40", in SW£ sec. 22, T. 38 N. , R. 2 W. , 900 ft 

upstream from Panther Creek and 9 miles southeast of McCloud.

Drainage area. 420 sq mi, approximately. 

Records available.--April 1955 to September 1957.

Gage. Water-stage recorder. Datum of gage is 2,491.64 ft above mean sea level (levels 

oy California-Oregon Power Co.).

Extremes. Maximum discharge during year, 4,620 cfs Feb. 26 (gage height, 7.90 ft); minimum, 912 cfs Feb. 4.

1955-57: Maximum discharge, 12,800 cfs Dec. 22, 1955 (gage height, 15.4 ft, from 

floodmarks), from rating curve extended above 2,300 cfs on basis of slope-area determination of peak flow; minimum, 808 cfs Nov. 15, 1955.

Remarks.--Records good. Two small diversions above station for domestic and municipal 

use.

Cooperation. Water-stage-recorder graph and 10 discharge measurements furnished by 

California-Oregon Power Co.

Rating tables, water year 1956-57 (gage height, in feet, and

discharge, in cubic feet per- second) 

(Shifting-control method used Oct. 1-19)

Oct. 1 to Feb. 26 Feb. 27 to Sept. 30

Z.O 

3.0 

5.0 

7.0

900

1,360

2,500

3,900

2.2 

4.0 

7.0

960

1,860

3,900

Discharge, in

Day

1 

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30 

31

Tota]

Mean

Ac-ft

Oct.

1,000 

998

998

990

985

*980

980

990

990

1,050

1,050

1,010 

1,000

998

998

1,000

998

998

994

1,000

1,000

998

1,000

1,010

1,010

1,050

1,020 

1,020

1,030

1,110 

1,040

31,235

1,008

61,950

Nov.

1.040 

1,030

1,030

1,030

1,030

* ,050

,030

,030

,020

,020

,020

,020 

,020

,010

,010

,010

,010

,000

1,000

998

998

998

998

994

994

994

994 

990

990

990

30,528

1,011

60,150

Dec.

990 

985

985

994

990

985

a98o

a980

*a980

990

1.010

994 

990

976

976

972

967

967

967

962

967

a960

a960

a960

a960

a960

a960 

a950

a950

a950 

a950

30,167

975

59,840

Jan.

a950 

a950

a940

a940

*a940

932

936

940

952

928

944

962 

1.020

990

972

954

944

940

949

958

956

932

932

952

928

924

920 

932

924

920 

920

29,221

945

57,960

Feb.

924 

924

916

916

916

916

928

940

928

928

928

924 

932

944

949

958

958

962

958

967

1,010

1,070

1,630

5,270

3,000

5,820

5,520 

2,280

-

58,116

1,361

75,600

Mar.

1,880 

1,740

1,650

1,610

1,710

1,710

1,720

1,640

1,760

1,690

1,650

1.940 

1,740

1,610

1,570

1,520

1,440

1,400

1,400

1,380

1,560

1,520

1,290

1,280

1,280

1,270

1.260 

1,260

1,320

1,290 

1,290

46, 980

1,515

95,180

Apr.

1,270 

1,250

1,250

*1,250

1,240

1,240

1,230

1 , 220

1,220

1,220

1,220

1,290 

1,370

1,670

 1,560

1,470

1,490

1,550

1,550

1,520

1,460

1,400

1,380

1,360

1,350

1,510

1,500 

1,500

1,520

1 550

40,590

1,555

80,510

May

1,360 

1,570

1,500

1,430

1,410

'1,400

1,380

1,370

1,380

1,360

1,350

1,520 

1,390

1,430

1,380

1,340

1,540

2,030

2.070

1,870

1,750

*1,630

1,540

1,490

1,440

1,410

1,380 

1,360

1,350

1,540 

1,520

45,670

1,473

90,590

June

1,3OO 

1,280

1,260

1,250

1,230

1,220

1,210

1,200

1,210

1,200

1,180

1,170 

.1,160

1,140

1,150

1,130

1,130

IjlSO

1,150

1,150

1,120

1,120

1,110

1,110

1,120

1,110

*1,100 

1,100

1,100

1,090_

54,870

1,162

69,160

July

.090 

,080

,080

,080

,070

,070

,070

,060

,060

,060

,060

,050 

,050

,050

,040

,040

,040

,040

,040

,040

,040

,040

,040

,040

* ,040

,040

,040 

,040

,040

,050 

1,030

32,590

1,051

64,640

Aug.

1.050 

1,050

1,030

1,050

1,020

1,020

1,020

1,020

1,020

1,020

1,020

1,020 

1,020

1,020

1,010

1,010

1,010

1,000

1,000

1,000

1,000

996

996

996

1,000

996

992 

992

992

992 

988

31,290

1,009

62,060

Sept.

988 

988

984

984

984

984

984

984

980

984

984

984 

984

984

980

980

984

980

976

972

972

972

972

972

*968

1,020

1.530 

1,090

1,030

1,000

29,978

999

59,460

Calendar year 1956: Max 5,190 Mln 950 Mean 1,524 Ac-ft 960,900

Water year 1956-57: Max 5,820 Min 916 Mean 1,154 Ac-ft 855,100

Peak discharge (base. 1,200 cfs). Feb. 26 (8 p.m.) 4,620 cfs (7.90 ft); Mar. 12 (11 a.m.)

2,040 cfs (4.50 ft); Apr. 14 (1 p.m.) 1.760 cfs (5.84 ft); May 18 (10 p.m.) 2,540 cfs (4.78 ft);

Sept. 27 (1:50 p.m.) 1,640 cfs (5.65 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, 2 discharge 

measurements, and records for station near McCloud.
SACRAMENTO RIVER BASIN 401

McCloud River above Shasta Lake, Calif.

Location. Lat 40°57'30", long 122°13'05", in NW£ sec. 28, T. 36 N., R. 3 W. , on right 

bank Just upstream from Shasta Lake, 0.2 mile downstream from Big Bollibokka Creek 

and 11.3 miles east of La Moine.

Drainage area. 606 sq mi.

Records available. October 1945 to September 1957.

Gage. Water-stage recorder. Datum of gage is 1,100.00 ft above mean sea level (levels 

Dy Bureau of Reclamation).

Average discharge .--12 years, 1,652 cfs (1,196,000 acre-ft.per year).

Extremes.--Maximum discharge during year, 18,300 cfs Feb. 24 (gage height, 21.48 ft), 

from rating curve extended above 6,000 cfs as explained below; minimum, 1,020 cfs 

Jan. 27.

1945-57: Maximum discharge, 45,200 cfs Dec. 22, 1955 (gage height, 28.20 ft), 

from rating curve extended above 6,000 cfs on basis of slope-area determination of 

peak flow; minimum, 820 cfs Jan. 3, 1950.

Remarks. Records excellent. Some very small diversions above station for domestic use. 

Records of water temperatures for the water year 1957 are given in WSP 1523.

Revisions (water years).--WSP 1445: 1953(M).

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

11.2

12.0

14.0

17.0

21.0

980

1,570

3,530

7,820

16,900

11.2

12.0

14.0

17.0

21.0

1,040

1,660

3,670

7,820

16,900

Discharge, in cubic feet per second, water year October 1956 to September 1957

Ds.y

1

2

5

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1,130

1,120

1,120

1,120

1,120

1.110

1,120

1,120

1,120

1,220

1,230

1,150 

1,140

1,130

1,130

1,130

1,120

1,130 

1,120

1,120

1,120

1,120

1,120

1,120

1,120

1,170

1,140

1,120

1,150

1,590

1,230

35,700

1,152

70,810

Nov.

.190

,170

,140

,140

,130

,120

,120

,120

,120

,110

,110

,110 

,100

,100

,100

,100

,100

,090 

,090

,090

,080

,080

,080

,080

,080

,080

,080

,080

,080

1.070

33,140

1,105

65,730

Dec.

,070

,070

,070

,090

,090

,080

,070

,060

,060

,070

.100

,090 

,090

,080

,070

,070

,060

,060 

,060

,060

,050

,050

,050

,050

,050

,040

,040

,040

,040

,040

,040

,960

,063

,380

Jan.

,040

,040

,040

,050

,030

,030

,040

,040

,030

,030

,070

,140 

,540

,550

,470

,270

,180

,130 

,120

,160

,120

,100

,090

,080

,070

,050

,030

,050

,050

,030

,040

34,690

1,119

68,810

Feb.

1,050

1,050

1,040

1,050

1,030

1,050

1,070

1,200

1,160

1,120

1,110

1,110 

1,150

1,220

1,270

1,280

1,270

1,260 

1,240

1,310

1,560

1,830

5,220

14,700

9,350

14,300

9,420

5,020

-

_______

-------

84,400

Mar.

*3,750

5,220

2,900

2,840

3,040

3,000

2,960

2,780

3,230

3,100

3,090

4,440 

3,600

3,140

3,050

3,100

2,930

2,780 

2,690

2,610

2,490

2,350

2,250

2,140

2,080

2,040

1,980

1,960

2,050

2,010

1,990

85,550

Apr.

,940

,880

,860

,840

,810

,800

,770

,730

,710

,700

,680

,790 

,860

,540

,360

,220

,750

,100 

5,050

2,910

2,680

2,500

2,350

2,240

2,140

2,060

2,010

1,980

1,970

2,020

64,250

3,014 2,760; 2,142

167,400 169,700 127,400

May

1,980

*2,570

2,500

2,520

2,200

2,120

2,060

2,010

2,050

1,960

1,880

1,850 

2,050

2,270

2,180

2,070

2,060

4,810 

4,390

3,590

5,160

2,840

2,630

2,460

2,310

2,190

2,120

2,050

1,990

1,950

1,900

74,480

2,405

147,700

June

,840

,790

,750

,710

,680

,650

,620

,600

,620

* ,580

,550

,550 

,510

,470

,460

,450

,450

,420 

,420

,410

,590

,580

,570

,570

,560

,360

,350

,350

,350

,540

45,110

1,504

89,470

July

,340

,310

,310

,300

,280

,280

,270

,260

,250

,250

,240

,230 

,240

,230

,220

,210

,200

,200 

,190

,190

,190

,180

,180

* ,180

,180

,170

,170

,170

,170

,160

.150

57,900

1,225

75,170

Aug.

1.150

1, 50

1, 40

1, 40

1, 40

1, 40

1, 40

1,140

1,140

1,150

1,150

1,120 

1,120

1,120

1,120

1,110

1,120

1,110 

1,110

1,110

1,100

1,100

1,100

1,100

1,100

1,100

1,100

1,100

1,100

1,100

1,100

54,680

1,119

68,790

Sept.

,O90

,090

,090

,080

,080

,080

,080

,080

,080

,080

,080

,080 

,080

,080

,080

,080

,080

,080 

,070

,070

,070

,070

,060

,060

,060

,200

,420

,650

,540

,250

-------

54,790

1,160

69,000

Calendar year 1956: Ma 16,800 Min 1.O40 Mean 1,972 Ac-ft 1,432,000

Water year 1956-57: Ma 14,700 Mln 1,030 Mean 1,637 Ac-ft 1,185,000

Peak discharge (base, 4,500 cfs).--Feb. 24 (5 p.m.) 18,300 cfs (21.48 ft); Mar. 12 (6 a.m.) 

4,640 efs (14.81 ft); May 18 (l p.m.) 5,880 cfs (15.73 ft). ________ ^^

Discharge measurement made on this day.
402 SACRAMENTO RIVER BASIN

Shasta Lake near Redding, Calif.

Location. Lat 40°43'10", long 122°25'10", in NW£ sec. 15, T. 33 N. , R. 5V., in Shasta

 Dam on Sacramento River near right bank, 2 miles downstream from Squaw Creek and 

9.5 miles north of Redding.

Drainage area. 6,665 sq mi (excluding Goose Lake basin). 

Records available.--November 1942 to September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Bureau of

 Reclamation). Prior to July 10, 1944, staff gages at various sites near dam at same 

datum.

Extremes.--Maximum contents during year, 4,528,900 acre-ft May 18 (elevation, 1,066.22 ft);

 minimum, 3,177,700 acre-ft Jan. 2 (elevation, 1,015.42 ft).

1942-57: Maximum contents, that of Hay 18, 1957; minimum since initial season of 

normal operation, 916,200 acre-ft Sept. 25, 26, 1944 (elevation, 877.31 ft).

Remarks.--Reservoir is formed by concrete gravity-type dam completed in 1949; regulation

 of discharge from reservoir began Dec. 30, 1943. Usable capacity, 4,377,000 acre-ft 

between elevations 737.75 (bottom of lowest set of river outlets) and 1,065.0 ft (top 

of drum-type spillway gates) above mean sea level. 115,700 acre-ft is not available 

for release. All water passes down Sacramento River, some first passing through powerplant at dam. Records including extremes, show total contents at 12 p.m.

Cooperation. Record of contents furnished by Bureau of Reclamation.

Capacity table, water year 1956-57 (elevation, in feet, 

and total contents. In thousands of acre-feet)

1,010

1,020

1,030

1,040

1,050

1,060

1,066.3

3,051.8

3,286.9

3,533.5

3,792.6

4,063.1

4,346.7

4,531.3

Total contents, In thousands of acre-feet, at 12 p.m., water year October 1956 to September 1957

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

81

Oct.

3^561.9

3,556.3 

3,550.7 

3,545.4 

3,540.6

3,535.5 

3,525.9 

3,519.6 

3,514.1 

3,509.5

3,503.2 

3,495.7 

3,488.9 

3,485.2 

3,481.2

3,477.2 

3,472.4 

3,468.2 

3,462.7 

3,456.7

3,449.3 

3,443.1 

3,438.6 

3,431.9 

3,424.5

3,419.0 

3,415.6 

3,411.9 

3,409.6

3,415.3 

3,413.4

1,025.19 

-155,100

Nov.

3,410.6

3,407.7 

3,404.2 

3,400.3 

3,393.9

3,386.5 

3,379.4 

3,373.5 

3,369.6 

3,366.7

3,362.3 

3,359.1 

3,355.5 

3,350.3 

3,344.0

3,362.3

3,330.9 

3,325.3 

3,320.7 

3,316.8

3,313.9

3,310.5 

3,307.9 

3,304.8 

3,298.7

3,293.9 

3,289.6 

3,285.7 

3,282.1 

3,278.3

1,019.64 

-135,100

Dec.

3,274.9

3,272.0 

3,267.7 

3,263.6 

3,258.6

3,254.2 

3,249.7 

3,245.6 

3,239.6 

3,236.1

3,232.2 

3,228.7 

3,227.0 

3,224.1 

3,220.8

3,218.4 

3,213.7 

3,208.0 

3,206.6 

3,205.1

3,201.4 

3,199.5 

3,198.5 

3,195.7 

3,192.3

3,189.5 

3,187.9 

3,185.7 

3,183.9 

3,181.3 

3,180.1

1,015.52 

-98,200

Jan.

3,178.2 

3,177.7

3,179.4 

3,181.0 

3,182.2

3,182.0 

3,182.7 

3,181.5 

3,179.8 

3,179.1

3,182.0 

3,193.1 

3,208.5 

3,223.0 

3,232.5

3,237.3 

3,240.6 

3,243.5 

3,246.8 

3,249.9

3,253.8 

3,256.9 

3,260.5 

3,263.3 

3,267.7

3,269.6 

3,268.9 

3,272.2 

3,274.4 

3,276.3 

3^280 . 4

1,019.73 

4100,300

Feb.

3,284.0 

3,284.3 

3,283.6

3,286.2 

3,290.8

3,294.6 

3,300.4 

3,307.4 

3,311.0 

3,312.5

3,315.9 

3,320.7 

3,325.8 

3,332.8 

3,338.7

3,346.2 

3,353.8 

3,361.1 

3,368.2 

3,379.2

3,394.4 

3,413.1 

3,474.7 

3,613.7 

3,684.0

3,805.0 

3,881.8 

3,918.9

 

1/144.73 

+638,500

Mar.

3,894.7 

3,841.9 

3,783.1 

3,734.5 

3,695.2

3,663.3 

3,653.7

3,656.3 

3,675.5 

3,697.3

3,726.6 

3,773.3 

3,804.2 

3,828.1 

3,855.0

3,881.3 

3,902.2 

3,919.5 

3,933.8 

3,944.1

3,953.9 

3,961.5 

3,971.3 

3,980.6 

3,990.7

4,001.9 

4,012.4 

4,023.9 

4,038.2 

4,050.9 

4,063.9

1,050.03 

+145,000

Apr.

4,076.4

4,088.1 

4,1OO.1 

4,111.5 

4,122.7

4,133.9 

4,144.8 

4,155.5 

4,165.4

4,175.0

4,183.2 

4,191.4 

4,203.3 

4,221.7 

4,235.1

4,251.1 

4,274.6 

4,296.7 

4,316.0 

4,331.7

4,346.7 

4,358.3 

4,370.4 

4,381.5 

4,391.4

4,400.9 

4,408.8 

4,417.3 

4,425.8 

4,431.3

1,062.91 

+367,400

May

4,438.9

4,452.7 

4,461.2 

4,468.0 

4,472.4

4,477.1 

4,481.2 

4,487.1 

4,491.9 

4,491.6

4,490.7 

4,489.8 

4,492.4 

4,496.9 

4,499.6

4,500.4 

4,501.0 

4,528.9

4,523.8 

4,510.5

4,507.5 

4,509.9 

4,513.2 

4,512.6 

4,511.4

4,508.4 

4,503.1 

4,501.6 

4,499.3 

4,498.4 

4,495.7

1,065.10 

+64,400

Jiine

4,492.7

4,489.5 

4,486.0 

4,482.1 

4,477.7

4,473.0 

4,469.5 

4,466.2 

4,460.0 

4,455.9-

4,453.3 

4,448.9 

4,445.1 

4,439.8 

4,432.2

4,424.3 

4,418.7 

4,412.9 

4,407.1 

4,401.2

4,396.0 

4,388.2 

4,378.0 

4,371.3 

4,364.4

4,358.3 

4,350.8 

4,344.4 

4,332.2 

4,319.2

1,059.05 

-176,500

July

4^309 . 7

4,3O2.2 

4,294.7 

4,286.4 

4,277.7

4,264.5 

4,251.7 

4,241.1 

4,232.3 

4,223.4

4,214.6 

4,205.8 

4,192.5 

4,178.9 

4,167.1

4,155.5 

4,144.3 

4,133.3 

4,122.1 

4,108.5

4,095.3 

4,085.6 

4,076.7 

4,066.4 

4,056.5

4,046.3 

4,033.3 

4,019.2 

4,009.1 

3,998.7 

3,988.3

1,047.28 

-330,900

Aug.

3,977.9

3,968.1 

3,956.6 

3,942.O 

3,930.6

3,920.8 

3,910.0 

3,900.1 

3,889.8 

3,877.5

3,864.4 

3,854.8 

3,846.2 

3,837.2 

3,827.8

3,818.5 

3,807.1 

3,795.0 

3,785.2 

3,776.2

3,767.2 

3,758.2 

3,749.5 

3,737.1 

3,725.3

3,714.6 

3,705.9 

3,696.3 

3,687.4 

3,679.1 

3,669.2

1,035.30 

-319,100

Sept.

3,658.6

3,645.2 

3,636.4 

3,627.6 

3,619.1

3,610.9 

3,603.0 

3,592.5 

3,583.5 

3,576.1

3,569.5 

3,562.4 

3,555.3 

3,547.9 

3,538.5

3,531.0 

3,524.1 

3,517.6

3,510.0 

3,503.5

3,496.2 

3,487.9 

3,482.2 

3,476.2 

3.471.9

3,475.2 

3,497.0 

3,496.0 

3,489.2 

3,484.9

1,028.07 

-184,300

Calendar year 1956.................... * -236,000

Water year 1956-57 .................._._._ * -83, 600

t Elevation, in feet, at end of "
SACRAMENTO RIVER BASIN 403

Sacramento River at Keswick, Calif.

Location. Lat 40°36'10" , long 122°26'35", in NWf sec. 28, T. 32 N. , R. 5 W. , on right 

bank 0.6 mile downstream from Keswick Dam, 0.6 mile upstream from Middle Creek, 

1.5 miles downstream from Keswick, and 10 miles downstream from Shasta Dam.

Drainage area. 6,710 sq mi, approximately, excluding Goose Lake basin.

Records available.--October 1938 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 479.81 ft above mean sea level, datum of 

T929. Prior to Oct. 1, 1939, at site 1.5 miles upstream at datum 20.2 ft higher and 

Oct. 1, 1939, to Apr. 30, 1942, at site 1.5 miles upstream at datum 15.2 ft higher.

Average discharge . 17 years (1939-41, 1942-57), 8,225 cfs (5,955,000 acre-ft per year), 

adjusted for storage since 1943 and evaporation since 1947.

Extremes. Maximum discharge during year, 52,600 cfs Mar. 4 (gage height, 27.15 ft); minimum, 2,870 cfs Feb. 19.

1938-43 (prior to regulation by Shasta Lake): Maximum discharge, 186,000 cfs Feb. 28, 

1940 (gage height, 47.2 ft, site and datum then in use), from rating curve extended 

above 75,000 cfs on basis of peak discharge at Kennett plus 4,000 cfs estimated inflow; 

minimum observed, 2,730 cfs Aug. 22, 1939.

1944-57: Maximum discharge, 73,100 cfs Jan. 16, 1953 (gage height, 30.71 ft); minimum, 154 cfs May 15, 1948.

Remarks.--Records good. Flow regulated by Shasta Lake beginning Dec. 30, 1943 (see preceding page). Uncontrolled pondage began in December 1942. Diurnal fluctuations from 

Shasta powerplant re-regulated by Keswick Reservoir (capacity, 4,170 acre-ft between 

normal operating elevations 579.0 and 586.0 ft) and powerplant. No diversions for 

irrigation between Shasta Dam and station at Keswick. Records of chemieal analyses 

for the water year 1957 are given in WSP 1523.

Cooperation. Six discharge measurements furnished by Bureau of Reclamation.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, In cubic

feet per second) 

(Shifting-control method used Dec. 29 to Feb. 28, June 20 to Sept. 9)

Oct. 1 to Feb. 28,. 

Mar. 31 to May 17, 

June 2O to Sept. 30

Mar. 1-30, 

May 18 to June 19

7.6 2,900

8.0 3,180

9.0 4,050

10.0 5,080

12.0 7,540

16.0 14,600

7.1

8.0

9.0

12.0

2,960

3,720

4,670

8,300

16.0 

2O.O 

24.0 

28.0

14,800

24,100

37,500

57,300

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Yean

Ac-ft

(t)

ftt)

Oct.

7,280 

*7,250 

7,180

7,150 

7,150

7,150

7,150

7,150

7,150

7,150

7,150

7,160

7,160

7,160

7,200

7,190

7,190

7,190

7,200

7,230

7,190

7,180

7,190

7,180

7,190

7,180

7,180

7,180

7,200

7,320 

7,200

222,780

7,186

441,900

-IS^lOO

6,270

Nov.

7,200 

7,200 

7,200

7,200 

7,200

*7,200

7,200

7.250

7,190

6,710

6,730

6,720

6,700

6,700

6,720

6,720

6,720

6,660

6,730

6,730

6,240

6,240

6,250

6,250

6,240

6,250

6,240

6,240

6,250

6,250

201,110

6,704

398,900

-135,100

5,350

Dec.

6,270 

6,270 

*6,280

6,280 

6,280

6,280

6,250

6,280

6,290

6,250

6,270

6,250

6,250

6,240

6,240

6,270

6,320

6,300

6,290

6,290

6,300

5,800

5,750

5,710

5,740

5,750

5,230

5,220

4,270

4.260 

4,270

183,750

5,927

364,500

-98,200

4,270

Jan.

4,260 

*4.270 

4,080

4,060 

4,040

4,050

4,060

4,040

4,040

4,050

3,660

3,700

3,750

3,730

3,710

3,680

3,670

3,650

3,250

3,280

3,250

3,240

3,240

3,240

3,240

3,240

5.250

3,250

5,230

5,230 

3,230

112,630

3,633

223,400

+100,300

2,520

Feb.

*3, 200 

2,930 

2,920

2,920 

2,920

2,920

2,910

2,910

2,920

2,910

2,920

2,920

2,920

2,920

2,920

2,910

2,930

2,930

2,920

2,920

2,940

2,950

5,300

10,000

12,000

12.900

8,490

11,400

-

122,630

4,380

243,200

+638,500

2,460

Mar.

36,000 

46,500 

49.000

*45,400 

42,200

58,900

25,200

16,900

11,200

8,190

8,300

6,460

6,340

6,330

6,340

6,340

8,270

8,300

8,290

8,230

8,200

8,230

6,290

6,270

6,360

4,090

4,060

3,540

3,550

3,030 

3,020

449,350

14,490

891,200

+145,000

4,110

Apr.

*5.160 

5,300 

3,310

3,260 

3,240

5,240

5,220

3,230

3,220

3,230

3,420

4,060

4,060

4,090

4,080

*4,100

4,130

4,120

5,280

5,280

5,270

5,270

5,270

5,230

5,260

5,270

5,260

5,260

5,980

6,180

129,280

4,309

256, 400

+367,400

9,130

May

6,140 

6,200 

6,190

6,450

7,150

7,150

7,140

7,120

7,220

8,540

8,850

8,850

8,870

8,850

*8,870

8,850

9,760

21,200

25, 700

24, 400

15,400

10, 900

10,500

11,700

12, ZOO

12,300

12,700

9,100

*10, 400

9,920 

9,940

328,160

10,590

650,900

+64,400

10,580

June

9.940 

9,910 

*9,890

9,450 

9,430

9,410

8,850

8,540

8,520

8,520

8,520

8,510

8,500

*8,470

8,520

8,540

8,540

8,520

8,520

8,000

8,180

8,200

8,230

8,240

8,310

8,680

8,660

8,850

9,380

9,440

263,270

8,776

522,200

-176,500

18,710

July

9,440 

9,430 

*9,400

9,360 

9,400

9,400

9,430

9,430

9,410

9,440

9,430

*9,460

9.350

9,360

9,830

9,840

9,830

9,880

9,840

9,480

9,360

9,380

9,380

9,350

9,350

9,350

9,350

9,360

9,380

9,400 

9,380

293,480

9,467

582,100

-330,900

20,100

Aug.

*9,350 

9,350 

9,350

9.560 

9,350

9,350

9,350

9,350

9,350

9,320

8.580

8,580

8,600

*8,600

8,590

8,590

8,590

8,590

8,650

8,620

8,600

8,630

8,620

8,620

8,600

8,630

8,650

8,600

8,650

8,630 

8,600

274,300

8,848

544,100

-319,100

16,510

Sept.

8.590 

*8,590 

8,270

8,170 

8,170

8,170

7,780

7,710

7,710

7,220

7,220

7,200

7,190

7,180

7,160

*7,190

7,180

7,160

7,160

7,160

6,790

6.660

6,700

6,680

6,680

6,710

7,050

7,580

7,610

7,670

222,310

7,410

440,900

-184,300

11,090

Adjusted for evaporation and change In reservoir contents

Mean 4,767 4,524 4,401 5,305 15,920 16,910 10,640 11,810 6,124 4,412 3,928 4,499 

Ac-ft 295,100 269,200 270,600 526,200 884,200 Lp40,000 632,900 725,900 364,400 271,300 241,500 267,700

Calendar year 1956: Max 51,200 

Water year 1956-57: Max 49,000

Yin 

Mln

3,000

2,910

Mean 

Yean

10,470

7,680

Ac-ft 7,600,000 

Ac-ft 5,560,000

Calendar year 1956: Mean 10,510 

Mater year 1956-57; Mean

Cf sm 

Cfsm

In. 

In.

Ac-ft 7,481,000 

Ae-ft 5,587,000

Discharge measurement made on this day.t Change In contents. In acre-feet, In Shasta Lake, 

tt Evaporation from Shasta Lake, In acre-feet, furnished by U. S. Bureau of Reclamation.

510529 O - 59 - Z7
404 SACRAMENTO RIVER BASIN

Clear Creek at French Gulch, Calif.

Location. Lat 40°41'40", long 122°38'10", in HE£ sec. 27, T. 33 N. , R. 7 W. , on right 

bank 1,200 ft downstream from Right Pork, 0.3 mile south of French Gulch, and 15 miles 

northwest of Redding.

Drainage area. 115 sq mi.

Records available . July 1950 to September 1957.

Average discharge. 7 years, 222 cfs (160,700 acre-ft per year).

Gage. Water-stage recorder. Altitude of gage is 1,320 ft (from topographic map).

Extremes. Maximum discharge during year, 4,750 cfs Feb. 24 (gage height, 8.53 ft); minimum daily, 11 cfs Oct. 7.

1950-57; Maximum discharge, 7,050 cfs Dec. 22, 1955 (gage height, 10.49 ft), from 

rating curve extended above 4.600 cfs on basis of slope-area determination of peak 

flow; minimum, 3.9 cfs Sept. 6, 7, 8, 1955.

Remarks. Records good except those for periods of indefinite stage-discharge relation 

or no gage-height record, which are fair. No large diversion above station.

Revisions. WSP 1285: Drainage area.

Rating tables, water year 1956-57, except for periods of Indefinite stage-discharge 

relation (gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 24 Feb. 24 to Sept. 30

O.3 7.O 2.O 288 O.4 13 2.0 340

.5 18 3.0 595 .6 26 3.0 715

.7 35 4.0 1,050 .8 47 4.0 1,180

1.0 74 6.0 2,400 1.0 76 6.0 2,450

1.5 173 1.5 193 8.0 4,2OO

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Calei

Oct.

12

12

12

12

12

12

11

U

18

25

28

26

24

23

22

21

21

20 

*20

21

20

19

19

20

22

25

33

28

32

250

130

964

31.1

1,910

Nov.

60

50

45

41

38

36

33

32

30

29

28

27

26

*26

26

26

27

27 

26

26

26

26

26

25

25

25

25

24

24

24

909

'30.3

1,800

Dec.

24

24

24

24

26

25

24

24

26

27

29

29

28

28

27

27

26

25 

*26

26

27

26

28

28

27

25

25

25

25

25

25

805

26.0

1,600

Jan.

24

24

24

24

24

24

24

27

24

24

34

78

347

30T

*281

154

106

79 

70

76

72

62

58

54

50

46

40

45

42

39

38

2,315

74.7

4,590

Feb.

*39

39

36

36

36

36

40

54

55

54

52

54

65

96

100

104

100

96 

87

88

173

232

2,230

*5.940

2,070

*2,120

1,600

985

14,617

522

28,990

idar year 1956: Max 3.94O Mln lo

Mar.

675

515

445

456

599

583

531

494

756

679

611

872

756

627

579

579

615

*603 

559

512

456

400

350

314

299

274

257

245

245

234

220

15,340

495

30,430

Apr.

206

196

185

177

*171

166

161

156

150

145

143

T48

145

201

163

166

286

547 476"

438

378

334

302

274

248

228

217

204

193

185

6,989

233

13,860

May

*193

226

201

185

177

169

161

188

217

220

209

206

286

462

438

375

379

1.550 

1,170

*841

655

531

459

400

350

314

289

271

257

240

226

11,845

382

23,490

June

198' 209

190

180

171

169

169

163

161

158

148

145

140

138

135

130

126

116 

112

108

106

103

101

99

95

84

80

78

74

74

3,960

132

7,850

July

*68"SB"

64

62

60

58

56

54

52

50

48

47

46

48

52

48

45

42 

41

40

39

38

37

36

35

34

32

31

30

29

*28

1,416

45.7

2,810

Aug.

a28

a27

a26

a25

a25

a27

28

26

25

24

24

24

22

22

22

20

20

19 

18

18

18

18

17

TT

17

17

18

18

18

*18

19

665

21.5

1,320

Sept.

18

17

17

16

16

15

14

14

13

13

13

14

14

14

14

15

18

18 

18

16

15

14

13

14

14

31

519

T69

118

93

1,307

43.6

2,590

Mean 245 Ac-^t 178, 10O

water year 1956-57: Max 3,94O Mln 11 Mean 167 Ae-ft 121', 20O

Peak discharge(base, 1,500 efs).--Feb. 24 (8 a.m.) 4,75O cfs (8.53 ft); May 18 (11:30 a.m.) 

1,850 cfs (5.16 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station near Igo. 

Note. Indefinite stage-discharge relation Oct. 1 to Nov. 13, July 1-31; discharge estimated on 

basis of 4 discharge measurements and records for station near Igo.
SACRAMENTO RIVER BASIN 405

Clear Creek near Igo, Calif.

Location. Lat 40°30'50", long 122°31'20", in NE^NEv sec. 27, T. 31 N. , R. 6 W. , on left 

bank at highway bridge on Redding-Igo road, 1.0 mile northeast of Igo, 8 miles southwest of Redding, and 10.5 miles upstream from mouth.

Drainage area. 228 sq mi.

Records available. October 1940 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 700 ft (from topographic map).

Average discharge. 17 years, 400 cfs (289,600 acre-ft per year); median of yearly mean 

discharges , 350 cfs (253,000 acre-ft per year).

Extremes. Maximum discharge during year, 13,000 cfs Feb. 24 (gage height, 10.28 ft); minImum, 18 cfs Oct. 7.

1940-57: Maximum discharge, 24,500 cfs Dec. 21, 1955 (gage height, 13.75 ft), from 

rating curve extended above 18,000 cfs on basis of slope-area determination of peak 

flow; minimum, 8.6 cfs Sept. 4, 6, 7, 1950.

Remarks . Records good. Small diversions above station.

Revisions (water years). WSP 1345: Drainage area . WSP 1395: 1941(M).

Rating tables, water year. 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 25 to Feb. 24

2.4 

2.7

2.6 

2.8 

3.0 

3.5 

4.0 

4.5 

5.0 

6.0 

7.0 

9.0

31

69

120

310

550

830

1,220

2,440

4,380

9,300

Feb. 25 to Sept. 30

25

57

117

203

355

550

Note. Same as 

preceding table 

above 4.0 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

23

22

22

22

22

21

20

25

33

38

46

43

39

36

35

33

33

31 

33

33

31

30

30

 34

36

50

63

48

59

548

T59

1,699

54.8

3,370

Nov.

"96 104

81

74

69

65

63

58

58

56

54

52

52

50

50

50

52

52 

52

52

52

52

52

52

52

52

50

50

50

48

1,750

58.3

3,470

Dec.

48

48

48

50

52

52

52

46

48

52

54

58

55

54

52

50

50

48 

48

48

48

46

45

48

46

45

45

45

45

45

45

1,519

49.0

3,010

Jan.

45

45

45

43

_41

41

41

46

46

41

*58

230

958

75SO"

926

350

225

170 

156

237

187

152

136

123

115

106

88

104

88

88

88

5,879

190

11,660

Feb.

88

88

83

81

ST

81

88

123

123

115

*112

112

123

156

166

166

166

162 

156

162

378

423

4,530

9,240

4,460

4,950

3,440

1,890

_

31,733

1,133

62,940

Mar.

1,280

949

830

879

1,140

*1,190

1,050

963

1,520

1,260

1,180

1.820

1,420

1,150

1,340

1,360

1,600

1,330 

1,130

1,000

865

758

672

622

590

555

520

500

500

485

4j)5

30,913

997

61,320

Apr.

425

400

*382

368

350

342

328

314

306

298

290

254

294

485

355

391

800

1,100 

9SO

850

750

660

60O

540

500

460

430

410

390

370

14,432

481

28,630

May

400

450

410

370

350

340

330

*45C

475

450

420

405

611

914

788

672

663

3.800 

2,180

1,710

1,310

1,030

872

764

694

616

585

535

510

475

445

23,974

773

47,550

June

415

39T

368

350

*328

310

302

286

282

278

263

249

238

232

229

219

209

197 

191

182

179

173

164

156

150

144

139

133

130

128

7,015

234

13,910

July

128

I2Z

117

110

105

100

98

95

89

87

*85

81

81

91

91

81

77

73 

71

70

70

70

65

62

60

57

57

54

54

53

52

2,506

80.8

4,970

Aug.

50

48

47

47

50

52

*52

50

50

48

45

45

43

42

41

40

38

37 

36

35

35

36

34

34

SZ

34

35

35

35

37

37

1,281

41.3

2,540

Sept.

36

35

34

33

*31

30

30

29

28

IZ

28

30

30

30

50

31

33

36 

36

33

31

30

30

30

30

60

1.100

346

225

179

2,691

89.7

5,340

Calendar year 1956: Max 13,300 Mln 20 Mean 507 Ac-ft 367,800

Water year 1956-57: Max 9,240 Mln 20 Mean 344 Ac-ft 248,700

Peak discharge (base. 3.60O cfs). Feb. 24 (2:30 p.m.) 13,000 cfs (10.28 ft); May 18 (7 a.m.) 

5,500 cfs (7.50 ft).

* Discharge measurement made on this day.

Note. No gage-height record Apr. 17 to May 8; discharge estimated on basis of 1 discharge measurement and records for station at French Qulch.
406 SACRAMENTO RIVER BASIN

South Cow Creek near Millville, Calif.

Location. Lat 40°32'55", long 122°05'30", in NW^-NE^ sec. 16, T. 31 N. , R. 2 W. , on 

left bank 2.5 miles upstream from Old Cow Creek and 4.4 miles east of Millville.

Drainage area. 78.7 sq mi.

Records available. October 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 610 ft (from topographic map). Prior 

To Aug. 9, 1957, at site 1.0 mile downstream at different datum.

Extremes.--Maximum discharge during year, 5,720 cfs May 18 (gage height, 9.23 ft, site 

and datum then in use), from rating curve extended above 800 cfs by logarithmic plotting and by comparison with rating curve at present site which was extended above 

1,800 cfs; minimum recorded, 7.9 cfs Sept. 4, 23.

Remarks. Records good except those above 1,500 cfs and those for periods of no gageheight record, which are fair. Diversions above station up to 35 cfs for irrigation 

of about 1,050 acres.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to May 18

1.0

1.1 

1.3 

1.6 

2.0 

2.5 

3.0 

4.0

12

17

33

72

145

270

435

850

May 18 to Aug. S

.7 

1.1 

1.5 

2.0 

3.0 

3.5

105 

205 

380 

7SO 

990

Aug. 9 to Sept. 30 

1.1

1.5 

1.7 

2.0

S.6 

14 

25 

40 

81 

177

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac- ft

Oct.

15

14

13.

14

15

16

16

17

IS

20

45

40

32

30

28

27

26

26

29

29

27

26

27

32

30

35

75

50

45

TIQ- 170

1,097

35.4

2,180

Nov.

70

£5

50

46

44

42

40

38

38

37

36

36

32

*35

36

35

35

34

33

33

33

32

32

32

32

31

31

32

31

32

1,128

37.6

2,240

Dec.

31

31

31

38

41

36

32

31

32

32

34

36

36

36

33

32

31

31

30

30

30

29

29

29

29

28

TE

28

28

29

28

979

31.6

1,940

Jan.

29

28

25

29

28

28

29

30

29

28

32

150

323 *72

54

44

38

35

36

98

68

49

45

47

49

41

32

41

32

34

33

1,639

52.9

3,250

Feb.

34

4C

36

35

35

35

*37

44

44

41

41

41

43

50

50

50

49

47

48

48

74

96

164

*700

W5

457

*418

276

_

3,642

130

7,220

Mar.

210

178

326

548

579

499

*324

255

249

188

172

267

169

147

281

345

192

158

143

132

126

113

103

96

95

90

SB" 83

124

118

118

6,514

210

12,920

Apr.

114

100

96

*93

90

90

86

88

86

77

74

74

77

169

109

98

105

116

293

195

147

126

118

109

98

90

85

78

77

82

3,243

108

6,430

May

78

116

93

82

77

74

72

77

75

74

72

66

63

68

62

56

54 90~2"

815

*440

352

280

229

205

184

170

159

143

136

125

117

5,516

178

10,940

June

111 TOT

92

84

81

*74

64

61

64

67

60

57

54

54

52

50

49

43

45

44

44

42

39

35

32

32

32

32

32

32

1,661

55.4

3,290

July

*29~ 31

27

26

25

25

24

23

23

23

21

*21

22

23

22

20

18

19

20

20

21

21

18

16

IS

17

16

16

16

17

16

652

21.0

1,290

Aug.

16

16

17

16

1§

17

17

18

18

17

17

16

16

*13

T4

14

16

13

14

14

15

15

16

16

16

17

15

17

16

16

16

492

15.9

976

Sept.

17

16

15

10

IT

16

16

16

14

14

14

15

16

15

16

18

18

18

18

17

16

17

14

*16

16

20

-§T 147

48

38

736

24.5

1,460

Calendar year 1956: Max - Mln - Mean - Ac-ft

Waber year 1956-57: Max 902 Min 10 Mean 74.8 Ac-ft 54,140

Peak discharge (base. 1,000 cfs).--Feb. 25 (12:30 a.m.) 1,240 cfs (4.70 ft); Mar. 4 (8:30 p.m.) 

1,100 efs (4.46 ft); May IS (7:30 p.m.) 5,720 cfs (9.23 ft)

* Discharge measurement made on this day.

Note. No gage-height record Oct. 1 to Nov. 8 and Aug. 9-12; discharge estimated on basis of 

records for Cow Creek near Millville, and by Interpolation.
SACRAMENTO RIVER BASIN 407 

Clover Creek near Oak Run, Calif.

Location. Lat 40°41'35", long 121°58'30", in NE^NE^- sec. 28, T. 33 N. , R. 1 W. , on right 

bank 2.5 miles upstream from Coal Creek and 2.7 miles northeast of town of Oak Run.

Drainage area . 19.0 sq mi.

Records available. May to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,930 ft (from topographic map).

Extremes. Maximum discharge during period, 424 cfs May 18 (gage height, 4.01 ft); minimum, 5.1 cfs September 11.

Remarks. Records good. Diversion of about 15 cfs above station during irrigation season.

Discharge, in cubic feet per second, 1957

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

May

_

-

-

-

-

-

-

_

-

-

-

_

-

_

-

June

35

34

32

28

27

27

26

25

24

24

23

22

*21

20

20

July

13

*T2

12

12

12

12

12

12

11

11

11

11

12

11

11

Aug.

8.6

874

8.6

8.6

8.6

8.6

8.2

7.4

7.4

7.4

7.4

7.4

7.1

6.7

6.8

Sept.

5.9

5.6

5.6

5.6

5.6

5.6

5.7

5.6

5.6

5.7

5.6

5.6

5.6

5.5

577

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total ..............................................

Mean ........................................ - .

Runoff in acre-feet. ...............................

May

.

*26

145

120

95

79

69

*62

56

52

49

47

43

40

38

36

_

-

June

20

19

18

17

17

16

16

16

*15

15

15

14

14

14

13

-

627

20.9

1,240

July

11

10

10

10

10

10

10

9.8

9.8

9.3

9.3

9.0

8.8

*B.6

¥76

8.6

327.8

10.6

650

Aug.

7.0

6.8

6.7

6.5

6.5

6.4

6.0

S7D- 5.9

6.4

6.5

*6.4

6 JO

6.0

6.1

6.0

218.4

7.05

433

Sept.

5.9

6.4

6.7

6,7

6.7

6,2

6,0

5.7

5.6

5.7

8,2

32

5C

14

*1B

-

238. 3

7.94

473

* Discharge measurement made on this day.

Note. A discharge of 97 cfs was- measured on Apr. 19.

Oak Run Creek near Oak Run, Calif.

left

Drainage area.--11.1 sq mi.

Records available. May to September 1957.

Gage.--Water-stage recorder. Altitude of gage Is 1,400 ft (from topographic map).

Extremes. Maximum discharge during period, 184 cfs May 18 (gage height, 4.25 ft); minimum, 1.2 cfs Aug. 25.

Remarks. Records good except those for periods of shifting control, which are fair. 

Some diversion above station for Irrigation.

Discharge, in cubic feet per second, 1957

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

May

_

_

_

_

_

_

_

_

_

_

_

_

*14

15

13

June

8.4

S73

6.4

6.2

5.8

5.3

5.0

4.6

4.4

4.3

3.7

4.1

*4.6

4.6

4.1

July

2.6

*3.2

2.9

2.4

2.8

3.1

3.4

279

2.3

2.3

2.5

2.5

2.4

2.6

2.8

Aug.

3.1

2.9

2.4

2.B

3.2

3.2

2.6

3.0

3.2

3.3

T79

2.B

2.0

2.2

2.2

Sept.

2.6

2.3

2 .3

2.4

2.4

2.6

2.4

2.6

2.5

2.9

2.8

2.6

2.4

2.7

3.6

Day

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total ....................................;.........

Runoff in acre-feet ................................

May

12

13

54

43

*26

22

19

16

15

15

13

12

10

10

10

9.6

_

_

-

June

3.2

3.4

3.6

4.2

4.1

3.6

3.4

3.5

3.4

3.2

3.0

2.9

3. 4

3.4

2.7

-

128.8

4.29

255

July

2.8

2.4

2.5

3.0

3.2

2.8

2.8

2.6

2.8

2.8

2.8

2.8

2.7

*2.6

2.1

2.3

83.7

2.70

166

Aug.

3.0

2.9

2.8

2.4

2.8

3.0

2.7

2.1

1.9

575

2.3

*2.2

2.2

2.0

2.8

2.9

82.1

2.65

163

Sept.

3.1

3.0

3.4

3.0

2.8

2.8

2.8

2.4

2.4

3.2

7.5

21

T4

7.0

 8.1

-

125.6

4,19

249

* Discharge measurement made on this day.

Note.--Shirting control method used May 13-25, June 15 to July 26, Sept. 27-30.
408 SACRAMENTO RIVER BASIN

Cow Creek near Millville, Calif.

Location. Lat 40°30'20", long 122°13'55", in NE^NW^ sec. 32, T. 31 N., R. 3 W. , on right 

bank 4.2 miles southwest of Millville and 4.3 miles downstream from Little Cow Creek.

Drainage area.--427 sq mi.

Records available. October 1949 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 400 ft (from topographic map).

Average discharge. 8 years, 669 cfs (484,300 acre-ft per year).

Extremes.--Maximum discharge during year, 10,600 cfs May 18 (gage height, 11.88 ft); 

minimum, 18 cfs Sept. 5.

1949-57: Maximum discharge, 45,200 cfs Dec. 27, 1951 (gage height, 21.55 ft), 

from rating curve extended above 15,000 cfs on basis of logarithmic plotting and 

velocity-area study; minimum, 5.0 cfs Aug. 11, 1955.

Remarks.--Records excellent. Numerous small diversions above station for irrigation. 

Revisions (water years).--WSP 1345: 1951.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 31 to Fet>. 25 Fet>. 25 to Sept. 3O

4.0 

5.0

45

90

202

372

590

1,180

2.7 

3.0 

3.5 

4.0 

5.0 

7.0 

9.0

108

192

370

590

1,180

2,890

5,460

2.0 

2.2 

2.6 

3.0 

3.5 

4.0 

5.0 

7.0 

9.0

19

35

56

118

214

380

600

1,230

3,000

5,460

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

Totaa

Mean

Ac-ft

Oct.

60

56

53

58

64

64

65

71

76

84

225

160

122

114

110

104

*103

106

120

116

108

103

108

132

122

139

364

197

162

1,080

566

5,012

152

9,940

Nov.

285

271

205

183

174

165

156

154

151

148

145

145

137

131

134

131

129

129

118

T18

121

124

124

124

121

118

118

118

*121

121

4,419

147

8,760

Dec.

121

118

118

275

2E4

177

148

129

129

129

137

142

148

156

145

137

134

129

129

124

124

121

118

116

116

116

116

116

116

113

IT6

4,278

138

8,490

Jan.

116

116

113

113

111

113

113

118

118

113

126

1,090

2,140

526

422

338

247

211

198

502

564

398

338

*319

300

247

174

198

168

165

165

10,080

325

19,990

Feb.

162

183

171

165

162

159

TS5

244

274

231

214

218

214

278

240

224

211

198

198

195

701

1,380

1,300

4,120

4,660

3,150

3,970

1,760

-

25,147

898

49,880

Map.

1,240

1,060

1,750

5,550

5,090"

4,850

*2,590

1,780

1,530

1,170

1,120

2,200

1,300

1,030

1,920

3,220

1,810

1,270

1,030

854

754

656

590

550

532

500

469

469

722

854

674

48,954

1,579

97,100

Apr.

722

550

518

*478

456

444

420

400

392

376

362 3S2~

400

1,060

610

492

523

710

925

1,060

764

640

580

541

492

450

428

404

384

380

16,334

544

32,400

May

376

546

514

416

380

362

356

373

392

388

384

352

345

356

345

306

292

2,TTO

5,290

*1,590

1,350

1,030

866

764

674

610'

550

500

474

444

408

21,153

682

41,960

June

380 348"

317

286

269

*246

240

226

245

265

223

200

190

184

180

167

157

141

131

124

124

120

114

*108

94

83

85

80

W

89

5,497

183

10,900

July

8582"

75

64

60

SO

65

66

59

60

53

56

55

57

50

44

39

43

49

47

48

50

45

37

35

37

39

40

43

42

33

1,618

52.2

3,210

Aug.

30

30

37

41

44

42

33

30

34

32

36

40

36

33

2J7

30

27

27

27

28

30

32

34

33

32

30

34

*29

33

32

33

1,016

32.8

2,020

Sept.

39

39

30

27

22.

31

33

33

29

23

30

32

36

39

35

33

40

41

38

39

41

39

40

33

31

46

761

591

289

184

2,724

90.8

5,400

Calendar year 1956: Max 22,600 Mln 39 Mean 744 Ac-ft 540,100

Water year 1956-57: Max 5,360 Mln 22 Mean 401 Ac-ft 290,000

Peak discharge (tase, 8,000 cfs). Feb. 25 (4 a.m.) 8.230 cfs (10.67 ft); Mar. 4 (11 p.m.) 

10,400 cfs (11.75 ft); May 18 (11 p.m.) 10,600 cfs (11.88 ft).

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 409

Middle Pork Cottonwood Creek near Ono, Calif.

Location. Lat 40°23'25", long 122°31'15", in SE^SEi sec. 3, T. 29 N., R. 6 W., on left 

bank 0.4 mile upstream from North Pork and 7.8 miles southeast of Ono.

Drainage area. 249 sq mi.

Records available.--October 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 550 ft (from topographic map).

Extremes. Maximum discharge during year, 4,920 cfs Feb. 24 (gage height, 11.45 ft); minimum, 6.6 cfs Sept. 10, 11.

Remarks.--Records good except those for period of no gage-height record, which are poor.

Rating tables,

Nov. 9 to Jan. 13

ear'1956-57 (gage height, In feet, and discharge, 

in cubic feet per second)

Jan. 14 to Sept. 27

Z.5 14

2.7 24

3.0 43

3.5 98

4.0 171

5.0 390

2.4 

2.6 

2.8 

3.0 

3.5 

4.0

4.5

12

24

41

98

171

5.0 

6.0 

7.0 

8.0 

9.0 

11.0

390

640

970

1,450

2,230

4,380

Sept. 27-30

3.2 49

3.5 84

4.0 163

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

zo

El

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct. .

21

18

17

18

17

16

16

17

20

24

27

31

33

35

35

35

33

30

27

28

29

30

31

32

33

35

37

38

40

190

190

1,183

38.2

2,350

Nov.

100

62

55

50

45

40

36

33

32

3Z

32

31

30

 29

30

31

31

31

30

29

29

29

29

29

29

Z9

28

28

28

28

1,075

35.8

2,130

Dec.

27

27

27

27

28

29

29

26

27

29

30

35

35

34

32

31

29

29

28

28

28

27

27

27

21

26

25

25

25

25

25

874

28.2

1,730

Calendar year 1956: Max -

Jan.

25

25

25

25

24

24

24

25

24

23

*27

53

297

*130

195

97

72

63

60

214

166

92

74

64

62

60

44

56

44

46

46

2,206

71.2

4,380

Feb.

47

47

44

42

41

40

*43

55

54

49

47

47

49

64

71

72

75

83

78

79

229

265

 1,220

*3,650

2,560

*1,310

1,030

736

-

12,107

432

24,010

Mar.

570

478

435

604

971

*912

697

578

540

452

420

727

592

512

540

560

670

590

542

508

465

415

368

339

319

312

295

279

274

295

256

15,515

500

30,770

Apr.

243

222

*Z06

193

183

173

163

152

148

142

137

137

132

208

181

163

235

572

415

509

341

303

274

254

234

214

193

185

176

169

6,857

229

13,600

May

168

214

183

163

158

158

161

*188

241

295

346

315

324

307

269

247

239

597

618

635

570

492

435

382

336

305

283

265

245

234

220

9,593

309

19,030

June

208

193

181

166

*154

143

137

130

124

119

114

108

104

102

101

95

92

88

81

79

77

73

70

65

63

61

58

55

56

M

3,151

105

6,250

July

54

55

54

51

49

46

44

42

40

*35

33

32

31

35

36

30

28

26

27

27

26

25

25

23

21

21

21

19

19

18

Tls

1,011

32.6

2,010

Aug.

17

16

16

15

16

*16

16

16

16

15

14

14

14

13

12

12

12

11

11

10

10

10

10

10

9.6

10

10

11

10

11

11

394.6

12.7

783

Sept.

11

10

10

*9.6

9.2

8.8

8.0

.6

.3

.3

.3

.3

.6

.6

.6

8.4

8.8

9.6

9.6

9.6

9.2

8.8

8.4

8.0

8.4

10

133 ^70

49

55

532.0

17.7

1,060

Min - Mean - Ac-ft -

Water year 1956-57: Max 3,630 Mln 7.3 Mean 149 Ac-ft 108,100

Peak discharge (base, 1,80O cfs). --Feb. 24 (2 p.m.) 4,920 cfs (11.45 ft).

* Discharge measurement made on this day.

Note. --No gage-height record Oct. 1 to Nov. 8; discharge estimated on basis of records for

Cottonwood Creek near Cottonwood.
410 SACRAMENTO RIVER BASIN

Cottonwood Creek near Cottonwood, Calif.

Location. Lat 40°23'10", long 122°14'15", in NE£ sec. 7, T. 29 N., R. 3 W. , on right 

bank 2 miles east of Cottonwood and 2.4 miles upstream from mouth.

Drainage area. 945 sq mi.

Records available. October 1940 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 370 ft (from river-profile map).

Average discharge. 17 years, 817 cfs (591,500 aore-ft per year).

Extremes. Maximum discharge during year, 15,900 cfs Feb. 24 (gage height, 10.80 ft); minimum, 39 cfs Nov. 21.

1940-57: Maximum discharge, 52,300 cfs Mar. 1, 1941 (gage height, 15.4 ft), from 

rating curve extended above 30,000 cfs; minimum, 15 cfs for several days during 

September 1945.

Remarks. Records good except those for period of shifting control, which are fair.

Small diversions above station. At times during irrigation season, Cottonwood Creek 

receives water above station from Sacramento River by way of Anderson-Cottonwood Canal. 

Records of chemical analyses for the water year 1957 are given in WSP 1523.

Revisions (water years). WSP 1345: 1943, 1944(M), 1946-47, 1949(M), 1951-52.

Rating tables, water year 1956-57, except period of shifting control (gage height, 

in feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

2.0 

2.3 

2.6 

3.0

106

190

320

970

2,220

3,780

8,000

10.0 13,400

4.0 

5.0 

6.0

2.4 

2.6 

3.0 

3.5

4.0

220

550

1,070

5.0 

6.0 

7.0 

9.0

2,400

3,940

5,760

10,600

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

82

67

65

69

M

59

63

67

78

93

111

124

132

135

135

132

122

116

99

:o9

109

114

*116

127

138

132

140

149

149

740

747

4,578

148

9,080

Nov.

334

250

214

193

181

172

160

149

152

178

132

124

149

143

114

114

111

111

109

106

97

104

95

99

99

97

97

*97

95

95

4,171

139

8,270

Dec.

93

95

95

97

97

97

99

93

91

93

97

104

116

TT6

111

84

104

102

106

106

99

95

95

99

102

99

97

97

99

111

104

3,093

99.8

6,130

Jan.

102

T24

135

119

109

104

104

109

111

109

119

175

1.140

*538

578

363

271

238

223

656

790

391

313

271

244

235

208

202

205

Io7

190

8,663

279

17,180

Feb.

190

190

184

175

172

T72~ 169

190

205

199

*187

184

187

205

247

250

254

274

274

264

492

652

4,000

»10,900

9,240

4,760

*3,940

2,520

_

40,676

1,453

80,680

Mar.

1,800

1,450

1,210

1,800

3,570

5,780

2,480

1,880

1,700

1,350

1,190

2,010

1,760

1,450

1,700

1,920

1,990

1,830

*1 , 610

1,490

1,350

1,140

1,020

950

906

873

840

800

800

OIO

760

48,282

1,557

95,770

Apr.

720

660

622

595

568

550

550

*494

456

442

428

428

428

687

790

680

790

1,990

1,310

2,390

1,320

1,070

950

862

810

740

650

622

613

613

23,828

794

47,260

May

631

730

740

660

622

622

568

*613

820

884

939

917

950

1,030

873

810

770

1,830

2,080

2,010

1,830

1,520

1,340

1,240

1,110

986

906

884

840

800

760

31,315

1,010

62,110

June

720

690

640

586

*518

478

456

421

414

407

379

358

344

324

312

282

, 260

250

240

245

235

225

216

212

212

204

196

188

176

T76

10,364

345

20,560

July

176

180

170

159

152

152

142

139

*133

124

121

109

106

112

112

109

103

103

100

100

103

103

97

85

85

82

80

78

78

72

75

3,540

114

7,020

Aug.

82

80

75

78

72

*70

78

80

80

82

80

78

78

72

70

75

70

68

70

72

75

72

72

68

68

68

62

72

68

65

68

2,268

73.2

4,500

Sept.

68

68

70

*78

80

68

68

58

54

58

65

68

70

78

75

72

78

75

75

72

72

72

72

72

70

78

329

337

230

235

2,965

98.8

5,880

Calendar year 1956: Max 22,400 Min 59 Mean 1,163 Ac-*"t 844,000

Water year 1956-57: Max 10,900 Min 54 Mean 503 Ac-ft 364,400

Peak discharge (base, 7,100 cfs).--Feb. 24 (7:30 p.m.) 15,900 cfs (10.80 ft). 

* Discharge measurement made on this day. 

Mote. Shifting-control method used Oct. 1-21.
SACRAMENTO RIVER BASIN 411

Battle Creek near Cottonwood, Calif.

Location.--Lat 40°23'50", long 122°08'05", In NW^ sec. 6, T. 29 N., R. 2 W., on left bank 

6.3 miles upstream from mouth and 7.6 miles east of Cottonwood.

Drainage area.--362 sq ml.

Records available.--October 1940 to September 1957.

Gage.--Water-stage recorder. Datum of Is 421.47 ft above mean sea level (levels by

Bureau of Reclamation.

Average discharge.--17 years, 459 cfs (332,300 acre-ft per year).

Extremes. Maximum discharge during year, 8,140 cfs May 19 (gage height, 10.10 ft); minimum, 41 cfs Dec. 23.

1940-57: Maximum discharge, 12,800 cfs Feb. 6, 1942 (gage height, 11.85 ft); minimum not determined; minimum gage height, 1.20 ft June 25, 1949.

Maximum stage known, 15.8 ft Dec. 11, 1937, from floodmarks (discharge, 35,000 cfs, 

by slope-area determination of peak flow).

Remarks. Records good except those for period of no gage-height record, which are fair. 

Flow regulated by four small powerplants and several small reservoirs above station. 

About 10 cfs diverted above station for irrigation.

Revisions (water years). WSP 1345: 1944(M), 1945(P), 1946, 1947(P), 1948, 1949(P), 1950. 

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, in cubic feet per second)

2.6 

3.0 

4.0

170

300

825

5.0 

7.0

1,490

3,320

Discharge, In cubic feet_per second, water year October 1956 to September1 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

211

2TT

217

214

214

211

214

220

224

230

268

247

233

230

227

230

*224

224

224

224

220

224

1 214

240

237

261

275

264

250

447

394

7,526

243

14,930

Nov.

308

293

282

282

275

271

268

264

264

264

261

257

257

257

250

254

257

250

250

237

244

247

250

240

240

233

240

240

*240

240

7,715

257

15,300

Dec.

244

233

233

240

254

244

240

233

230

230

247

257

254

261

25T

247

250

247

244

237

240

233

227

240

230

237

227

227

237

233

233

7,446

240

14,770

Jan.

233

233

233

230

227

227

233

230

227

224

233

328

670

32T

*268

257

250

250

237

540

304

278

254

250

250

250

240

250

244

240

244

8,458

273

16,780

Feb.

244

380

271

254

247

244

244

254

250

247

247

240

244

*250

254

257

261

257

257

261

391

380

615

2,580

2,090

1,480

*l , 400

945

15,044

537

29,840

Mar.

747

705

831

1,420

2,010

1,530

1,090

867

909

111

681

964

717

623

601

885

687

618

*574

557

584

513

475

465

450

435

421

42F

496

535

535

23,128

746

45,870

Calendar year 1956: Max 5,820 Min 201 Mes

Apr.

540

460

445

440

445

460

440

*435

426

426

430

426

430

681

562

496

496

518

795 693"

568

518

486

475

435

416

412

403

42T

445

14,623

487

29,000

May

445

552

508

445

455

460

480

486

486

475

450

426

416

*435

426

403

408

1,250

2,870

1,210

1,090

921

807

777

717

675

681

675

723

657

596

21,405

690

42,460

June

596" 606

562

552

546

540

524

496

518

535

470

450

445

421

398

385

376

*367

372

376

362

344

328

328

328

336

324

324

324

324

12,857

429

25,500

July

308

a300

a290

a285

a280

a275

a270

a265

3260

*a255

250

244

237

230

224

224

214

214

211

208

208

208

204

201

201

198

198

198

198

195

187

7,240

234

14,360

Aug.

190

187

187

184

190

190

192

1ST

187

187

187

184

184

184

181

184

184

184

181

181

178

181

181

181

181

181

181

*176

178

178

178

5,689

184

11,280

Sept.

178

178

178

176

178

176

176

176

173

m

173

176

176

184

190

190

192

195

198

192

190

192

190

190

190

201

775

6BT

376

304

6,887 230~

13,660

m 573 Ac-ft 416.000

water year 1956-57: Max 2,870 Mtn 173 Mean 378 Ao-ft 273,800

Peak discharge (base, 2,5OO cfs).--Feb. 24 (6 p.m.) 3,970 cfs (7.49 ft); Mar. 4 (10 p.m.) 3,37O cfs 

(7.04 ft); May 19 (5 a.m.) 8,140 cfs (1O.10 ft).________________________________________ 

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of 1 discharge measurement and recorded

range in stage.
412 SACRAMENTO RIVER BASIN

Paynes Creek near Red Bluff, Calif.

Location. Lat 40°15'50", long 122°11'10", In SE£ sec. 22, T. 28 N. , R. 3 W. , on right 

bank 0.4 mile upstream from mouth and 6.5 miles northeast of Red Bluff.

Drainage area . 92.5 sq mi.

Records available.--October 1949 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 360 ft (from topographic map).

Average discharge.--8 years, 73.4 cfs (53,140 acre-ft per year).

Extremes. Maximum discharge during year, 1,490 cfs Feb. 24 (gage height, 5.86 ft); no 

flow many days in July and August.

1949-57: Maximum discharge, 5,130 cfs Dec. 19, 1955 (gage height, 8.77 ft), from 

rating curve extended above 3,000 cfs; no flow at times most years.

Remarks. Records good. Diversions up to 10 cfs at times above station for irrigation. 

Revisions (water years).--WSP 1285: 1950, 1951-52(M).

Rating tables, water year 1956-57 (gage height, In feet, 

and discharge. In cubic feet per second)

Oct. 1 to Feb. 24

1.2 3.2

3.2 3.6

7.1 4.0

13 4.5

21 5.0

114

210

340

560

850

Feb. 25 to Sept. 30

8 0 2.4 6

9 .1 2.5 12

0 .2 2.6 20

1 .3 2.8 44

2 1.2 3.2 114

Note . Same as preceding table above 3.2 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

2.2

2.2

2.2

2.0

2.0

1.8

2.2

2.4

2.4

2.4

2.7

2.7

2.4

2.4

2.4

2.7

*2.4

2.7

2.7

2.7

2.4

2.2

2.2

2.2

2.2

2.4

2.7

2.7

2.7

4.2

174

75.9

2.45

151

Nov.

5.3

~9. 11

8.

8.

8.

8.

7.

8.

7.

8.

8.

7 t

6. >

7.

7.

7.

7.

7.

1 

&'. 7 .

a.

a.

8.

7.

8.

8.

8.

8.

235.6

7.85

467

Dec.

8.

8.

8.

8.

8 -

8.

8 .

8.

8.

8.

8.

8 .

a. ;

a'.

a.

8.

8.

8.

8.

8.

8.

8.

8.

8 .

253.6

8.18

503

Jan.

8.6

8.6

8.6

8.1

8.1

8.1

*8.1

8.1

8.1

8.1

9.1

36

~40 260

19

16

14

12

13

97

29

18

15

14

13

11

11

11

11

10

10

751.6

24.2

1,490

Feb.

10

11

10

9.6

9.6

10

10

11

11

10

10

*10

10

9.6

10

10

10

10

10

10

11

12

39

816

588

239

213

110

2,229.8

79.6

4,420

Ma?.

71

71

64

288

798

434

205

129

142

120

87

222

131

90

*80

205

216

146

104

81

83

61

52

46

41

38

34

32

41

52

39

4,303

136

8,340

Apr.

36

32

30

29

28

26

22

18

17

17

17

17

18

23

*23

20

22

24

62

124

80

58

47

40

34

30

27

25

24

23

993

33.1

1,970

May

22

28

30

26

25

24

24

20

16

16

16

15

14

*13

12

12

12

14

52

87

106

73

53

39

30

25

20

17

17

16

15

889

28.7

1,760

June

13

12

12

7.3

4.8

4.1

4.1

3.8

5.5

4.4

3.8

3.2

3.2

3.5

3.2

3.2

3.0

*2.8

2.8

3.0

3.0

2.0

.3

.2

.2

.2

.2

.2

.2

.2

109.4

3.65

217

July

0.1

.1

.2

.2

.2

.2

.2

.1

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.3

0.04

2.6

Aug.

0

0

0

0

0

0

0

0

0

0

* 1 1

2.9

0.09

5.8

Sept.

0.2

.1

TT

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

85

~68 176

29

362.3

12.1

719

Calendar year 1956: Max 2,810 Mln 0.1 Mean 90.5 Ac-ft 65,690

Water year 1956-57: Max 816 Mln 0 Mean 27.7 Ac-ft 20,050

Peak discharge (base. 1,200 cfs).--Feb. 24 (4:30 p.m.) 1,490 cfs (5.86 ft); Mar. 4 (11:30 p.m.) 

1,260 ef3 (5.58 ft) .______________ _______

* Discharge measurement or observation of no flow made on this day.
SACRAMENTO RIVER BASIN 413

Sacramento River near Red Bluff, Calif.

Location. Lat 40°13'55", long 122°10'50", in SE$ sec. 34, T. 28 N., R. 3 W. , on left 

bank at lower end of Iron Canyon, 0.5 mile downstream from Sevenmile Creek and 

4.6 miles northeast of Red Bluff.

Drainage area. 9,300 sq mi, approximately, excluding Goose Lake basin. 

Records available.--April 1895 to September 1957.

Gage. Water-stage recorder. Datum of gage is 253.18 ft above mean sea level, datum of 

T929 (levels by Corps of Engineers). Prior to January 1902, staff gage at site 

16.2 miles upstream at different datum. January 1902 to December 1919, staff gage at 

several sites within 1 mile of present site and at same datum.

Average discharge. 62 years, 11,160 cfs (8,080,000 acre-ft per year).

Extremes. Maximum discharge during year, 66,400 cfs Mar. 5 (gage height, 15.58 ft); minimum daily, 3,790 cfs Feb. 7,8.

1895-1957: Maximum discharge, 291,000 cfs Feb. 28, 1940 (gage height, 38.9 ft), 

from rating curve extended above 170,000 cfs by logarithmic plotting and on basis of 

velocity-area studies; minimum, 2,000 cfs Mar. 29, 1944 (gage height, -0.45 ft).

Remarks. Records excellent. Flow regulated by Shasta Lake since Dec. 30, 1943 (see 

p. 402). Diversions, in addition to those on tributaries, for irrigation of about 

22,000 acres between stations at Keswick and near Red Bluff. Records of chemical 

analyses and water temperatures for the water year 1957 are given in WSP 1523.

Revisions (water years). WSP 861: 1904, 1907, 1909, 1914-15, 1927-28.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

Discharge, in cubic feet per second, water year October 1956 to September 1957

.O

3,720

4,870

6,470

9,150

12,100

6.0

8.0

11.0

15.0

18,700

26,500

40,800

62,800

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

8,000

*7,560

7,560

7.480

7,540

7,510

7,560

7,700

7,730

7,780

7,970

8,000

7,89O

7,860

7,830

7,830

7,780

7,780

7,780

7,780

7,780

7,780

7,780

7,890

7,970

8,100

8,350

8,240

8,130

10,200

10_, 500

247,640

7,988

491,200

Nov.

8,810

8,620

8,370

8,320

8,240

8,240

8,210

8,160

8,100

7,830

,590

,560

,560

,510

,540

,510

,510

,48O

,430

,460

,210

,010

,980

,980

,98O

,950

,950

6,950

6,950

6,950

227,960

7,599

452,200

Dec.

6,950

7,010

*6,980

7,030

7,270

7,060

7,010

6,980

6,980

6,980

6,980

7,010

7,030

7,030

7,010

7,010

7,010

7,010

6,950

7,010

6,980

6,720

6,470

6,420

6,420

6,420

5,150

5,910

5,520

4.950

5,060

207,320

6,688

411,200

Jan.

,980

,870

,870

* ,830

,790

,760

,760

,760

,740

,720

,700

,850

,320

,920

,720

,170

,410

,060

,830

,520

,27O

,520

,950

,720

,600

,500

,350

,230

,210

* ,180

,120

158,230

5,104

313,800

Feb.

4,120

4,160

4,030

3.9OO

3,850

3,810

3,790

3,790

3,830

3,860

3,880

3,900

3,900

3,920

3,940

3,950

3,970

4,010

4,030

4,040

4,100

4,620

5,340

19,600

47,000

28,000

28,800

19,400

-

235,540

8,412

Mar.

28,800

47,4OO

51,900

58,600

61,500

58,800

41,800

27,700

20,600

15,500

13,400

1 7 , 000

13,900

12,100

11,800

18,000

15,300

15,200

13,900

13,100

12,600

12,000

10,600

9,600

8,870

7,780

7,030

6,620

6,420

7,080

5,910

650,610

20,990

467,200 1,290,000

Apr.

*6,170

5,700

5,540

5,410

5,210

5,100

5,OOO

4,850

4,640

4,600

4.540

5,120

5,730

6,540

6,670

6,150

6,620

8,730

9,010

11,600

9,750

8,870

8,460

8,180

7,830

,54O

,290

,160

,350

,940

203,300

6,777

403,200

May

7.940

8,460

8,540

8,180

8,810

8,870

8,790

8,730

9,150

9,980

11,200

11,100

11,200

11,800

11,700

11,400

11,200

16,600

43,200

33,300

24,400

17,100

14,500

14,400

15,100

14,800

14,600

12,200

12,200

12,000

11,600

423,050

13,650

839,100

June

11.500

11,400

»1 1,300

11,000

10,600

10 , 5OO

10,100

9,460

9,350

9.4OO

9,270

9,120

9,070

8,980

8,930

8,900

8,840

8,810

8,760

8,700

8,650

8,650

8,590

8,590

S.560

8,870

8,930

8,930

9,460

9,600

282,820

9,427

561,000

July

»9,600

9,660

9,520

9,490

9,460

9,430

9,490

9,460

9,430

9.43O

9,400

9,430

9,460

9,460

9,690

9. 860

9,810

9,810

9,810

9,690

9,430

9,430

9,400

9,370

9,370

9,320

9,320

9.290

9,350

9,320

9,290

294,280

9,493

583,700

Aug.

9,320

9,350

9,350

9,370

9.400

9,400

9,400

9,400

9,370

9,400

8,950

8,650

8,590

8,620

8,590

8,620

8,620

8,590

8,620

8,650

8,620

8,650

8,620

8,620

8,650

8,620

8,650

8,650

8,620

8, 620

8,650

275,230

8,878

545,900

Sept.

8,620

8,590

8,510

8,270

»8,180

8,160

8,050

7,750

7,730

7,510

7,320

7,320

7,350

7,320

7,400

7,430

7,430

7,400

7,380

7,380

7,290

6,980

6,950

6,930

6.900

7,060

8,870

11,400

9^090

236,150

7,872

468,400

Calendar year 1956: Max 102,000 Min 4,950 Mean 14,520 Ac-ft 1O,540,OOO

Water year 1956-57: Max 61,300 Min 3,790 Mean 9,430 Ac-ft 6,827,000

Discharge measurement made on this day.
414 SACRAMENTO RIVER BASIN

Antelope Creek near Red Bluff, Calif.

Location. Lat 40°12'10", long 122°07'05", in Rio De Los Berrendos Grant, on right bank 

1.8 miles upstream from diversion dam of Los Molinos Mutual Water Co. , 6.5 miles east 

of Red Bluff, Tehama County, and 9.7 miles upstream from mouth.

Drainage area.--124 sq mi.

Records available. October 1940 to September 1957.

Gage. --Water-stage recorder. Altitude of gage is 360 ft (from topographic, map). Prior 

To Sept. 18, 1954, at site 0.6 mile downstream at different datum.

Average discharge. 17 years, 145 cfs (105,000 acre-ft per year).

Extremes. Maximum discharge during year, 3,550 cfs Feb. 24 (gage height, 9.81 ft); minimum, 14 cfs Nov. 23.

1940-57: Maximum discharge, 11,500 ofs Feb. 22, 1956 (gage height, 12.43 ft), from 

rating curve extended above 2,800 cfs on basis of slope-area determination at gage 

height 11.78 ft; minimum, 14 cfs Oct. 1, 1940, Oct. 21, 1955, Hov. 23, 1956.

Flood in December 1937 reached a stage of about 22 ft from floodmarks, at former 

site and datum.

Remarks. Records good. Small diversion above station for Red Bluff water supply during 

October to June of each year.

Rating tables, water year 1956-57 (gage height, in feet, and 

discharge, in cubic feet per second)

3.3

3.6 

4.0 

4.5 

5.0

Oct. 1 to May 20

35

67

125

225

355

May 21 to Sept. 30

6.0 705

7.0 1,170

8.0 1,760

9.O 2.62O

3.2 28

3.5 56

4.0 125

4.5 225

5.0 355

6.0 705

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

39

40

43

40

40

40

40

42

42

43

39

44

43

42

41

39

39

39

40

40

39

39

40

*45

41

42

47

44

43

84

76

1,355

43.7

2,690

Nov.

53

50

46

44

43

42

42

42

42

42

42

41

41

41

41

42

42

42

42

42

42

42

4O

42

42

42

42

43

43

43

1,283

42.8

2,540

Dec.

43

42

43

44

48

45

43

42

42

43

44

45

45

45

45

45

44

44

44

44

44

43

44

44

44

44

44

44

43

43

43

1,360

43.9

2,700

Jan.

44

44

44

44

44

44

*44

46

46

45

48

145

430

119

77

65

57

53

53

191

106

74

62

57

56

53

50

50

47

47

47

2,332

75.2

4,630

Feb.

47

48

46

45

46

46

48

54

52

51

50

*50

51

52

51

53

52

50

50

48

62

83

219

1,840

 958

750

570

322

_

5,794

207

11,490

Mar.

242

238

214

282

498

490

352

275

310

260

216

363

255

203

*195

367

370

268

205

172

156

136

122

111

104

100

94

91

100

119

112

7,020

226

13,920

Apr.

112

102

97

96

94

96

94

91

88

88

88

88

90

176

 152

132

139

138

218

205

170

151

134

125

115

109

104

102

102

100

3,596

120

7,130

May

100

138

120

106

103

98

98

100

*104

108

96

90

84

87

84

77

75

228

415

768

473

340

275

230

199

174

156

141

143

125

115

5,450

176

10,810

June

114

102

94

*88

83

79

76

72

74

79

70

66

64

63

60

58

56

54

54

53

51

50

49

48

47

46

45

*45

45

44

1,929

64.3

3,830

July

44

43

43

42

42

41

41

41

41

40

40

39

39

39

39

38

37

37

37

37

37

38

37

*38

38

37

36

36

35

35

35

1,202

38.8

2,380

Aug.

35

35

35

35

3_6

36

36

36

36

36

35

35

35

34

34

34

34

34

34

34

34

34

34

33

33

34

34

35

*35

35

36

1,076

34.7

2,130

Sept.

35

35

34

34

34

34

34

34

33

33

34

35

36

36

36

36

36

37

37

37

36

36

36

35

»36

40

668

346

139

81

2,153

71.8

4,270

Calendar year 1956: Max 5,450 Min 38 Mean 184 Ac-ft 133, 600

Water year 1956-57: Max 1,840 Min 33 Mean 94.7 Ac-ft 68,52O

Peak discharge (base, 2.200 efs).--Peb. 24 (2:50 p.m.) 5,550 cfs (9.81 ft). 

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 415

Mill Creek near Los Molinos, Calif.

Location.--Lat 40°03'17", long 122°01'23", in NE^NV^ sec. 6, T. 25 N., R. 1 W. , on right 

bank 4j miles northeast of Los Molinos and 5.5 miles upstream from mouth.

Drainage area. 134 sq mi.

Records available. September 1909 to September 1913 (fragmentary), October 1928 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 420 ft (from topographic map). September- 1909 to September 1913, staff gage at site 0.3 mile downstream at different datum.

Average discharge.--29 years (1928-57), 287 cfs (207,800 acre-ft per year).

Extremes.--Maximum discharge during year, 6,140 cfs Feb. 24 (gage height, 10.03 ft); minimum, 100 cfs Sept. 25, 26.

1928-57; Maximum discharge, 23,000 cfs Dec. 11, 1937 (gage height, 23.4 ft, from 

floodmarks), from rating curve extended above 3,900 cfs on basis of slope-area studies; 

minimum, 49 cfs Dec. 13, 1932.

Remarks.--Records good. No storage or large diversion above station. Records of chemical 

analyses for the water year 1957 are given in WSP 1523.

Revisions.--WSP 861: Drainage area.

Rating tables, water year 1956-57 (gage height, In feet, a 

discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1-4)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

1.6 

1.8 

2.0 

3.0

102

148

202

555

4.0 

6.0 

8.O

1,010 

2,2OO 

3,9OO

1.4 85

1.7 160

2.0 238

3.0 540

4.0 96O

6.0 2,180

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

122

122

122

122

120

117

117

122

122

124

153

134

126

122

120

117

117

117

12O

115

115

113

122

*124

122

148

161

134

126

376

222

4,214

136

8,360

Nov.

156

T46

141

145

143

141

141

138

141

138

136

131

131

126

124

124

122

122

120

117

117

117

117

117

117

115

115

115

113

113

3,837

128

7,610

Dec.

113

113

113

115

124

120

117

113

115

115

126

143

143

143

131

126

122

120

120

117

117

115

115

113

111

111

109

109

109

111

109

3,674

119

7,290

Jan.

109

109

109

109

109

106

106

109

*111

113

120

231

547

216

164

145

134

129

131

249

174

143

154

151

151

124

115

124

117

117

12O

4,584

148

9,090

Feb.

120

122

115

TTs

115

115

117

129

124

120

120

*120

131

153

156

161

158

158

156

158

194

299

909

5,840

2,140

1,910

1,420

*810

-

14,185

507

28,140

Mar.

592

568

522

600

1,050

1,000

779

6OO

710

554

470

658

502

422

413

710

592

461

389

360

368

*311

283

263

258

246

241

246

300

302

15,052

486

29,860

Apr.

516

277

277

288

294

308

280

269

272

272

266

260

255

41?

*331

300

351

539

392

363

551

516

502

297

286

283

286

302

331

351

9,194

306

18,240

May

360

428

357

354

368

386

401

389

*366

542

322

316

308

319

502

505

336

1,380

1,420

1,310

900

714

578

516

488

480

494

498

494

477

464

16,152

521

32,040

June

477

458

434

416

419

413

392

389

386

380

348

336

345

308

288

269

263

258

266

266

263

258

252

*255

252

*255

255

255

252

244

9,652

322

19,140

July

235

224

214

208

201

195

190

182

178

170

168

160

158

158

155

150

148

145

142

140

158

158

138

135

*130

130

130

125

125

T22" 122

4,952

160

9,820

Aug.

122

120

120

120

120

122

120

120

118

118

118

118

115

115

115

115

112

112

112

112

112

112

110

108

108

110

*108

108

108

108

108

3,544

114

7,030

Sept.

108

105

105

105

105

105

105

102

102

102

102

102

105

102

102

105

105

108

108

105

105

105

105

102

*102

108

1,290

490

193

142

4,830

161

9,580

Calendar year 1956: Max 4,610 Mln 109 Mean 397 Ac-ft 288, 5OO

Water year 1956-57! Max 3,840 Mln 1O2 Mean 257 Ac-ft 186,200

Peak discharge (base, 1,500 cfs). --Feb. 24 (2:30 p.m.) 6,140 cfs (1O.03 ft); May 18 (4 p.m.)

2,100 cfs (5.89 ft); Sept. 27 (l2:30 p.m.) .4,390 cfs (8.49 ft).

* Discharge measurement made on this day.
416 SACRAMENTO RIVER BASIN

Elder Creek near Paskenta, Calif.

Location. Lat 40°01'30", long 122°30'30", in NW£ sec. 14, T. 25 N. , R. 6 W., on right 

bank 2.5 miles downstream from South Fork, 8 miles northeast of Flournoy, and 11 miles 

north of Paskenta.

Drainage area. 95.8 sq mi.

Records available. December 1948 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 720 ft (from topographic map).

Average discharge. 8 years (1949-57), 92.0 cfs (66,610 acre-ft per year).

Extremes. Maximum discharge during yea,r, 4,020 cfs Feb. 23 (gage height, 9.63 ft), from 

rating curve extended above 2,200 cfs as explained below; minimum, 1.3 cfs Sept 8, 9, 10.

1948-57: Maximum discharge, 8,840 cfs (revised) Dec. 21, 1955 (gage height, 

12.52 ft), from rating curve extended above 2,200 cfs on basis of slope-area determinations at gage heights 10.97 and 13.90 ft; no flow Aug. 6, Aug. 14 to Sept. 16, 1950.

Revisions. The maximum discharge for the water year 1956 has been revised to 

8,840 cfs Dec. 21, 1955 (gage height, 12.52 ft), superseding figure published in 

WSP 1445.

Remarks. Records good. No large diversions.

Revisions.--Revised figures of discharge, in cubic feet per second, for high-water periods in the water year 1956, superseding those published in WSP 1445, are given herewith:

1955 

Dec. 18......... 1,490

19......... 3,160

21......... 2,960

22......... 3,870

23......... 2,400

1956 

Feb. 20......... 1,180

21......... 3,510

22......... 1,680

Month

December 1955 .......... 

Calendar year 1955...

February 1956 ..........

Water year 1955-56...

Cfa-days

18,791.9

Maximum

3,870 

3,870

3,870

Minimum

9.9 

0.6

1.1

Mean

606 

77.1

187

Runoff In 

acre-feet

37,370 

55,840

135,400

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

4.0

4.0

4.1

4.0

4.0

3.8

T7f

5.5

6.0

6.0

6.2

6.2

5.8

5.7

5.3

5.3

5.1

5.1

5.3

5.3

5.1

*5.1

5.1

5.8 

6.2

7.1

9.1

8.0

8.5

~50 120

310.8

10.0

616

Nov.

18

15

13

12

11

11

10

10

9.8

9.8

9.5

9.3

9.0

8.8

9.0

9.3

9.5

9.3

9.0

9.0

9.0

9.0

9.0

9.0 

9.0

9.0

9.0

9.0

8.8

8.8

299.9

10.0

595

Dec.

8.8

8.8

8.8

8.8

9.0

9.3

9.3

9.3

9.3

9.3

9.8

978

9.5

9.3

9.0

9.0

8.8

8.8

8.6

8.6

8.6

8.4

8.6

8.6 

8.4

8.4

8.4

8.4

8.1

8.1

274.3

8.85

544

Jan.

8.4

8.1

8.1

8.1

8.4

8.4

8.4

*8.6

9.0

8.8

10

82

285

55

56

32

26

23

35

528

60

36

27

22

20

20

14

16

*14

13

13

1,371.3

41.0

2,520

Feb.

12

12

12

11

IT

11

13

18

15

13

13

12

15

25

22

21

25

25

*22

21

29

39

2,200

2,850 

927

*499

373

245

7,491

268

14,860

Mar.

183

150

131

141

243

208

173

149

150

119

108

167

125

111

554

217

228

175

154

141

»127

114

105

95 

92

89

88

87

106

101

89

4,498

145

8,920

Apr.

82

76

75

74

75

74

69

66

i 64

62

61'

59

59

105

79

*79

160

208

148

154

117

105

98

92 

84

79

75

71

71

69

2,688

89.6

5,530

May

*70

77

66

60

58

58

56

76

88

79

73

70

68

67

61

57

59

119

T5T

92

92

82

76

70 

66

60

56

54

52

50

11

2,160

69.7

4,280

June

44

4T

38

*37

35

53

35

52

31

30

29

27

26

26

25

24

22

31

21

20

19

18

16

16

15

14

15

12

12

15

745

24.8

1,470

July

15

15

12

11

9.4

8.9

8.5

8.5

7.8

*7.1

7.4

7.1

7.4

8.5

8.1

6.8

6.0

6.0

6.3

6.0

5.8

5.8

5.3

5.1 

4.5

4.3

4.1

3.9

3.7

577

5.7

218.7

7.05

434

Aug.

3.5

3.4

3.2

5.2

*5.7

4.3

ITT

3.9

5.7

3.4

3.2

3.0

2.9

2.6

3.4

2.4

2.4

2.3

2.1

2.1

2.1

2.1

2.5

2.0

27T

2.4

2.6

2.7

2.7

5.0

5 2

89.0

2.87

177

Sept.

2.7

2.6

*2.3

2.1

2.1

1.9

1.7

1.4

T74

1.4

1.7

1.9

2.1

2.1

2.1

2.4

2.7

3.0

5.0

2.6

2.5

2.1

1.9

1.7 

1.7

2.7

28

19

14

52

148.6

4.95

295

Calendar year 1956: Max 3,880 Mln 3.5 Mean 137 Ac-ft 99,660

Water year 1956-57: Max 2,850 Mln 1.4 Mean 55.3 Ac-ft 40,040

Peak discharge (base, 1,200 cfs),--Feb. 25 (4:50 a.m.) 4,020 cfs (9.65 ft). 

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 417

Elder Creek at Gerber, Calif.

Location. Lat 40°03'05", long 122°09'55", In Saucos Grant, on right bank 1.0 mile west 

of Gerber, Tehama County, and 3.5 miles upstream from mouth.

Drainage area. 142 sq mi.

Records available.--October 1949 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 240 ft (from topographic map).

Average discharge. 8 years, 95.4 cfs (69,070 acre-ft per year).

Extremes. Maximum discharge during year, 4,090 cfs Feb. 24 (gage height, 8.60 ft); no 

flow for several months.

1949-57: Maximum discharge, 9,480 cfs (revised) Dec. 22, 1955 (gage height, 

13.38 ft); no flow for several months each year.

Revisions. The maximum discharge for the 'water year 1956 has been revised to 

9,480 cfs Dec. 22, 1955 (gage height, 13.38 ft), superseding figure published in 

WSP 1445.

Remarks. Records good. No large diversions.

Rating tables, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used Feb. 24, 25)

Oct. 1 to Feb. 24

1.7

1.8

1.9

2.0

2.1

2.2 

2.4

3.1

9.6

19

44

4.0 

5.0 

7.0

82

200

390

610

1,130

2,550

2.0

2.1

2.2

2.3 

2.5 

2.7

Feb. 24 to Sept. 30

0 3.0

2.1 3.5

7.4 4.0

17 5.0

52 6.0

98 8.0

189

366

565

1,030

1,620

3,140

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

TJ

O

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0 

0

0

0

0

0

.1

o

0.1

0.003

0.2

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

TJ

0

0

0

0

0

*0

0

0

0

0

-55 299

*52

34

21

14

9.6

283

94

43

28

21

17

17

10

11

*8.9

6.5

6.5

1,034.5

33.4

2,050

Feb.

6.5

5.8

5.1

4.0

775

4.0

4.5

7.2

9.6

8.0

6.5

5.1

5.1

8.0

14

14

14

17

*16

16

18

26

1,970

5,070 

*£400

545

*413

270

-

7,886.4

282

15,640

Mar.

202

167

155

142

202

215

276

151

148

126

112

151

152

112

277

506 535"

196

160

142

*129

112

101

93

86

86

81

79

34

104

84

4,627

149

9,180

Apr.

79

70

67

65

63

63

61

56

54

50

48

48

46

TS

*70

61

72

237

1ST

179

129

104

93

91

81

76

70

65

63

61

2,443

81.4

4,850

May

*59

70

61

50

48

46

44

50

86

74

67

61

59

63

61

48

44

81

~53 106

88

79

72

65 

59

52

48

42

40

39

5_5

1,885

60.8

3,740

June

31

5(5

26

*21

20

IB

17

17

17

16

13

11

9.6

8.8

B.I

6.8

5.6

3.9

3.4

2.9

2.1

1.7

.9

.1 

0

0

0

0

0

0

290.9

9.70

577

July

(*)

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 3,600 Mln 0 Mean 135 Ac-ft 98,150

Water year 1956-57: Max 3,070 Mln 0 Mean 49.8 Ac-ft 36,040

Peak discharge (base. 1,200 cfs). Feb. 24 (11:30 a.m.) 4,090 cfs (8.60 ft); Mar. 15 (9 p.m.) 

1,240 cTs (5.56 ft).____________________________________________________________

* Discharge measurement or observation of no flow made on this day.
418 3ACRAMENTO RIVER BASIN

Thomes Creek at Paskenta, Calif.

Location.--Lat 39°52i55", long 122°33'05", in NWi sec. 4, T. 23 N., R. 6 W., on left bank 

0.25 mile upstream from Digger Creek and 0.3 mile upstream from highway bridge at 

Paskenta.

Drainage area.--188 sq mi.

Records available.--October to December 1920 (gage heights only), January 1921 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 750 ft (from topographic map). Prior 

 to Oct. 1, 1930, staff gage at site 0.3 mile dowistream at different datum. Oct. 1, 

1930, to Dec. 28, 1938, water-stage recorder at site 1,300 ft upstream and Dec. 29, 

1938, to June 20, 1942, at site 1,000 ft upstream at different datums.

Average discharge.--36 years (1921-57), 256 cfs (185,300 acre-ft per year).

Extremes.--Maximum discharge during year, 7,870 cfs Feb. 24 (gage height, 7.79 ft); minimum daily, 1.0 cfs Sept. 24-26.

1921-57: Maximum discharge, 23,500 cfs Dec. 21, 1955 (gage height, 12.14 ft), from 

rating curve extended above 11,000 cfs by logarithmic plotting; no flow at times many 

years.

Remarks.--Records good. Mo storage or large diversion above station. 

Revisions (water years). WSP 1345: 1923, 1924-28(M), 1938, 1940(M).

Rating tables, water year 1956-57 (gage height, In feeb, and discharge, In cubic feeb per second) 

(Shifting-control method used Oct. 30)

3.9

3.1

3.2

2.4 

2.6 

2.8 

3.1 

3.5

Oct. 30 to Feb. 24

8

38

75

150

300

4.0 

4.5 

5.0 

5.5

600

1,030

1,640

2,380

1.4

1.5 

1.7 

1.9 

2.1 

2.4

Feb. 24 to Sept. 30 

0.4

80

175

3.0 515

4.0 1,260

5.0 2,400

6.0 3,920

7.0 5,920

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

6.6

6.6

6.6

6.6

6.6

6.6

7.0

7.8

7.8

8.2

8.2

9.0

9.5

8.6

8.2

8.2

8.2

8.2 

8. 2

8.2

8.2

 8.2

8.6

11

12

12

23

16

15

644 184-

1,096.9

35.4

2,180

Nov.

84

BT

67

69

67

60

52

49

45

43

42

36

33

30

28

27

27

25

25

22

21

21

21

19

19

18

18

 18

18

2JL

1,087

36.2

2,160

Dec.

16

15

15

15

16

21

19

14

16

19

50

82

BT

56

45

40

35

33

30

28

27

24

22

22

21

19

19

18

18

18

18

855

27.6

1,700

Jan.

18

16

16

15

15

14

14

 18

15

12.

22

62

204

88

 71

58

47

40 

63

456

114

71

60

49

45

40

52

38

35

40

33

1,841

59.4

3,650

Feb.

33

35

28

3?

32

32

33

38

35

35

35

36

 49

165

147

165

215

219 

180

156

168

394

2,310

5,660

3,860

 2,660

 1,670

968

-

19,390

692

38,460

Mar.

745

612

534

653

1,640

1,490

1,080

829

759

619

560

794

632

554

612

554

502

426 

426

450

 450

390

348

318

342

372

372

378

438

444

414

18,737

604

37,160

Apr.

378

336

348

372

390

408

336

295

278

272

262

256

236

662

42T

 360

402

432 

408

372

324

307

301

289

278

262

272

301

348

360

10,271

342

20,370

May

354

366

289

262

289

426

366

378

426

354

301

272

 272

272

256

241

262

1,350 

984

794

697

606

502

432

396

372

372

366

354

342

307

13,260

428

26,300

June

289

261T

230

 211

193

171

156

152

137

128

115

112

106

98

90

85

78

74 

72

70

67

63

57

54

52

49

47

42

49

45

3,354

112

6,650

July

39

38

36

33

30

28

27

 25

24

23

22

21

20

21

22

20

18

17

17

17

17

16

15

13

13

13

12

11

11

10

9 . 6

638.6

20.6

1,270

Aug.

9.6

579

8.2

7.5

 7.5

7.5

7.5

7.5

7.5

7.5

6.8

6.8

6.8

6.8

6.8

6.8

6.1

6.1 

6.1

6.1

6.1

5.4

5.4

5.4

5.4

5.4

5.4

4.7

4.7

4.7

4_._P

201.0

6.48

399

Sept.

4.0

4.0

 4.0

3.5

3.5

3.5

3.0

3.0

3.0

3.0

3.0

3.0

2.5

2.5

2.5

2.5

2.5

2.1 

2.1

1.7

1.7

1.4

1.4

1.0

T7o

1.0

100

106

67

106

445.4

14.8

883

Calendar year 1956: Max 7,690 Mln 6.6 Mean 429 Ac-ft 311,100

Water year 1956-57: Max 5,660 Mln 1.0 Mean 195 Ac-ft 141,200

Peak discharge (base, 1,600 cfs). --Oct. 30 (10 a.m.) 1,640 cfa (5.00 ft); Feb. 24 (4 p.m.) 7,870 cfa 

(7.79 ft); Mar. 5 (3 a.m.) 2,200 cfs (4.85 ft); May 18 (11 a.m.) 1,970 cfs (4.67 ft).

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 419

Deer Creek near Vina, Calif.

Location.--Lat 40°00i50", long 1S1°56'50", in MwiNE^ sec. 23, T. 25 N., R. 1 W., on left 

bank 0.5 mile upstream from concrete diversion dam and 7.9 miles northeast of Vina.

Drainage area. 200 sq mi.

Records available. October 1911 to December 1915, March 1920 to December 1937, January 

1939 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 480 ft (from topographic map). Prior 

fc> Oct. 9, 1928, staff gage at site 0.8 mile downstream at different datum. Oct. 9, 

1928, to Jan. 19, 1939, water-stage recorder at present site at datum 2.64 ft higher.

Average discharge.--38 years (1912-15, 1920-37, 1939-57), 305 cfs (220,£ 

year).

acre-ft per

Extremes.--Maximum discharge during year, 7,470 cfs Feb. 24 (gage height, 10.04 ft); 

minimum daily, 88 cfs Sept. 8-10.

1911-15, 1920-37, 1939-57: Maximum discharge, 23,800 cfs Dec. 10, 1937 (gage 

height, 19.2 ft, present datum, from floodmarks), from rating curve extended above 

7,000 cfs on basis of velocity-area studies; minimum, 43 cfs Dec. 13, 1932.

Remarks.--Records good. No storage or large diversion above station. Records of chemical 

analyses for the water year 1957 are given in WSP 1523.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

2.3 

2.6 

3.0 

4.0

5.0 

6.0 

7.0 

9.0

1,190 

1,970 

Z,970 

5,680

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

118 iTsns

118

120

118 

118

122

124

125

149

139

127

125

124

124

124

124

125

124

124

124

133

137

131

149

164

145

*133

298" 307 

4,329

140

8,590

Nov.

176

158

156

147

143

139 

137

137

135

135

133

131

129

127

125

125

125

125

125

122

122

124

124

124

122

122

122

122

120

120

3,952

132

7,840

Dee.

120

120

120

122

131

125 

124

118

120

120

133

153

143

139

129

125

124

122

122

120

120

116

116

116

116

ITS' 115

115

115

115 

115

3,804

123

7,550

Jan.

115

115

115

115

115

113 

115

118

*113

109

122

723

704

288

189

158

141

135

133

303

189

151

143

135

135

129

118

127

122

122 

122

5,082

164

10,080

Feb.

122

125

120

118

Tie

120 

125

149

135

131

131

131

*139

158

169

171

171

171

167

169

187

237

1,170

4,950

2,800

1,990

*1,590

994

-

16,758

598

33,240

Mar.

745

725

661

730

1,250

1,540

1,080

838

922

775

666

790

685

602

589

780

652

558

504

466

474

*402

362

338

323

309

298

288

323

354 

354

19,183

619

38,050

Apr.

370

320

302

302

295

295 

284

270

260

253

247

240

24T

504

386

*338

438

458

454

434

402

382

350

323

302

284

270

260

257

264

9,788

326

19,410

May

260

402

366

309

284

270 

264

274

*288

284

264

247

240

250

257

227

218 825"

1,100

1,090

874

730

625

544

470

426

386

354

374

326 

316

13,144

424

26,070

June

288

264

247

230 *2ie

206 

200

194

189

197

184

174

169

164

160

156

151

147

145

143

139

137

135

133

129

127

125

125

125

125

5,126

171

10,170

July

124

122

120

118

116

116 

115

113

113

111

111

109

109

111

111

109

108

108

106

106

106

106

105

103

103

*103

103

103

101

100

100

3,389

109

6,720

Aug.

100

100

98

98

98

98 

98

98

98

98

97

97

95

95

95

94

94

94

94

94

94

94

94

92

92

94

94

*92

92

92 

92

2,955

95.3

5,860

Sept.

92

92

91

91

91

89 

89

88

88

88

89

91

91

91

91

91

92

94

94

92

91

91

89

89

89

*98

998

354

164

131

4,009

134

7,950

Calendar year 1956: Max 6,500 Min 110 Mean 461 Ac-ft 334,800

Water year 1956-57: Max 4,950 Min 88 Mean 251 Ao-ft 181,500

Peak discharge (base. 2,SOP cfs). Feb. 24 (8:50 a.m.) 7,470 cfs (10.04 ft). 

* Discharge measurement made on this day.

5105Z9 O - 59 - 28
420 SACRAMENTO RIVER BASIN

Big Chico Creek near Chico, Calif.

Location. Lat 39°46'35", long 121°45'10", in Arroyo Chico Grant, on right bank 1.8 miles 

upstream from golf clubhouse in Bidwell Park, 2.6 miles upstream from Lindo Channel, 

and 7 miles northeast of Chico, Butte County.

Drainage area.--67.9 sq mi.

Records available.--May 1930 to September 1957. Prior to October 1952, published as Chico 

Creek near Chico.

Gage.--Water-stage recorder. Altitude of gage is 300 ft (from topographic map). Prior to 

Oct. 1, 1955, at site 0.6 mile downstream at different datum.

Average discharge.--27 years, 141 cfs (102,100 acre-ft per year); median of yearly mean 

discharges, 121 cfs (87,600 acre-ft per year).

Extremes.--Maximum discharge during year, 4,100 cfs Feb. 24 (gage height, 10.74 ft); minimum, 15 cfs Aug. 20.

1930-57: Maximum discharge, 8,260 cfs Dec. 10, 1937 (gage height, 16.6 ft, site and 

datum then in use), from rating curve extended above 5,000 cfs on basis of rating at 

cable gage, velocity-area studies, and logarithmic plotting; minimum, 10 cfs Dec. 11, 

1932, Aug. 15, 1939, Sept. 18, 1947.

Remarks.--Records good. No storage or large diversion above station. Records of chemical 

analyses for the water year 1957 are given in WSP 1523.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

2.4 

2.6 

3.0 

3.5 

4.0

192

314

5.0 

6.0

7.0 

9.0

630

1,030

1,570

2,880

19

30

55

109

3.5

4.0 

5.0

7.0

211

345

675

1,600

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

1

6

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

28

28

28

28

28

25

22

30

29

30

35

32

30

29

29

29

29

29

29

29

30

*29

34

36

30

35

39

36

35

140 -§2

1,112

35.9

2,210

Nov.

50

42

38

35

34

34

33

33

32

32

30

32

30

30

32

32

32

32

32

*30

2929"

29

29

29

29

29

29

29

28

965

32.2

1,910

Dec.

30

30

32

33

ii

36

34

32

32

33

34

35

34

33

34

34

33

*30

30

30

30

30

30

30

30

30

30

30

29

30

30

989

31.9

1,960

Jan.

29

2T

32

32

32

32

32

32

34

30

36

134

253" 373

125

84

67

56

53

123

90

*65

58

51

47

44

38

40

38

36

35

2,110

68.1

4,190

Feb.

3439-

35

34

34

34

38

68

64

59

57

56

60

72

70

72

68

64

59

56

86

151

804

2,670

*1,230

843

715

465

-

8,037

287

15,940

Mar.

330

282

253

339

504

490

393

321

351

301

256

309

271

240

253

321

301

261

230

199

176

149

132

122

113

106

98

9396"

107

103

7,500

242

14,880

Apr.

101

93

*86

79

75

73

69

67

65

62

61

60

6T

190

140

120

189

255

238

216

189

169

147

131

118

106

98

92

87

*90

3,525

118

6,990

May

82

131

111

96

90

82

~B2 78

87

93

87

83

83

96

96

90

85

996

960

*594

423

324

264

218

178

153

136

123

113

103

95

6,232

201

12,360

June

86

80

75

72

67

*63

61

60

56

59

54

53

56

52

50

46

43

43

42

41

41

39

39

 38

37

36

36

36

36

35_

1,532

51.1

3,040

July

34

34

34

34

34

33

33

33

32

32

31

31

31

31

31

30

30

30

30

30

30

*30

30

29

29

29

29

29

28

oTT

CO

28

957

30.9

1,900

Aug.

28

28

28

28

28

28

28

28

28

28

28

28

*27

27

25

25

25

25

25

24

23

24

25

24

24

*25

24

25

23

25

25

806

26.0

1,600

Sept.

25

25

25

25

24_

24

24

24

24

24

24

24

24

24

24

24

24

25

24

24

24

24

27

*24

24

25

"85- 201

45

38

1,002

33.4

1,990

Calendar year 1955; Max 5,750 Mln 22 Mean 198 Ac-ft 143, OOO

Water year 1956-57: Max 2,670 Mln 22 Mean 95.3 Ac-ft 68,970

Peak discharge (base, 900 cfs). Feb. 24 (9:30 a.m.) 4,100 cfs (1O.74 ft); Feb. 26 (11:30 a.m.) 

1,010 cfs (5.82 ft); May IB (3:30 p.m.) 1,850 cfs (7.58 ft).____________________________

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 421

Stony Creek at Black Butte dam site, near Orland, Calif.

Location. Lat 39°49'00", long 122"20'00", in SE^ sec. 29, T. 23 N., R. 4 W., on right 

bank 120 ft downstream from diversion dam and 8.7 miles northwest of Orland.

Drainage area. 741 sq mi.

Records available. July 1955 to September 1957 in reports of Geological Survey. February 

1948 to January 1955 in files of Bureau of Reclamation and January to July 1955 in 

reports of California Department of Water Resources.

Gage. Water-stage recorder. Datum of gage is 369.89 ft above mean sea level (Bureau of 

Reclamation bench mark).

Extremes. Maximum discharge during year, 5,360 cfs Feb. 24 (gage height, 7.26 ft), from 

rating curve extended above 1,600 cfs on basis of slope-area determination at gage 

height 11.82 ft; no flow Dec. 8-10, Dec. 31 to Jan. 10.

1955-57: Maximum discharge, 19,300 cfs Dec. 22, 1955 (gage height, 11.33 ft), from 

rating curve extended above 1,400 cfs on basis of slope-area determination of peak 

flow; no flow Dec. 8-10, 31, 1956, Jan. 1-10, 1957.

Remarks. Records good except those for periods of shifting control, which are fair. 

Many diversions above station for irrigation. Flow regulated by East Park Reservoir 

(usable capacity, 50,600 acre-ft) and Stony Gorge Reservoir (usable capacity, 50,100 

acre-ft). Prior to October 1956 figures of daily discharge included water diverted to 

South Diversion canal, which diverts 120 ft above station. Records of combined 

monthly discharge do not include a small diversion that bypasses the station at times 

for irrigation.

Rating tables, water year 1956-57, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 1 to Jan Jan. 20 to Sept. 30

1.2

1.3 

1.6 

2.0 

2.5

119

260

490

3.0 

4.0 

5.0 

6.0 

7.0

780

1,470

2,360

3,480

4,910

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-fb

(t)

Oct.

96

104

105

90

82

96

80

41

33

54

69

80

85

82

76

70

66

69

57

52

55

54

*52

44

34

25

2030-

33

107

94

2,035

65.6

4,040

6,180

Nov.

40

30

28

22

17

22

28

25

31

27

26

25

29

29

29

22

7.2

4.8

*2.7 30 

70

65

69

34

22

33

40

29

22

20

878.7

29.3

1,740

1,740

Dec.

19

19

19

11

6.0

2.7

.6

0

B

0

11

19

22

25

19

19

18

17

*16

14

13

12

12

12

11

11

12

9.7

2.7

.6

0

348.3

11.2

691

802

Jan.

0

7J

0

0

0

0

0

0

0

0

4.5

17

138

46

22

18

14

12

9.7

289

*229

173

152

134

122

116

114

106

103

103

103

2,025.2

65.3

4,020

115

Feb.

100

97

100

97

95

95

97

106

106

106

103

103

97

100

122

128

137

114

92

BT_

116

159

1,450

4.010

3,320

*1,630

1,350

1,040

_

15,157

541

30,060

618

Mar.

1,060

995

888

888

1,400

1,620

1,48(5

*1,190

744

642

582

684

672

594

646

600

530

495

455

470

546

535

500

475

445

405

372

327

376- 322

358

21,296

687

42,240

613

Apr.

318

272

*236

180

140

134

13T

159

166

166

176

169

146

137

224

224

224

564 5"40"

530

480

435

415

372

318

260

187

152

*163

180

7,804

260

15,480

9,770

Hay

163

149

140

137

134

134

131

 T34

137

140

140

140

140

140

137

140

137

186

460

576

*660

TfSo"

546

460

363

314

268

216

198

180

156

7,586

245

15,050

13,720

June

140

128

128

128

152

176

166

140

128

*128

122

116

116

114

114

114

119

128

140

146

146

149

149

143

143

140

134

143

143

149

4,082

136

8,100

13,850

July

143

140

143

131

128

131

137

140

140

156

156

159

T3S

152

*149

156

159

140

128

128

131

131

140

131

140

152

152

159

159

159 

156

4,472

144

8,870

14,540

Aug.

137

149

152

156

149

152

156

146

131

128

125

119

116

*122

125

122

122

134

140

128

140

134

ITS- 95

128

128

128

134

128

100 

106

4,046

131

8,030

12,700

Sept.

103

92

8E

103

103

97

92

103

116

119

116

114

111

90

60

74

90

97

84

87

103

103

103

103

114

*122 ~5?

38

29

28

2,768

92.3

5,490

9,580

Adjusted for diversion bo South Diversion Canal

Mean

Cf sm

In.

Ac-ft

166

10,220

58.5

3,480

24.2

1,490

67.3

4,140

552

30,680

697

42,850

424

25,250

468

28,770

369

21,950

381

23,410

337

20,730

253

15,070

Calendar year 1956: 

Water year 1956-57:

Calendar year 1956: 

Water year 1956-57:

Max 

Max

Mean 

Mean

13,000 

4,010

737 

315

Min 

Min

Adju

Cfs 

Cfs

0 

0

:sted

m

Mean 

Mean

In.

656 

199

Ac -ft 

Ao-ft

Ac -ft 

Ac -ft

476 

143

535

228

,000 

,800

,300 

,OOO

* Discharge measurement made on this day.

t Diversion, in acre-feet, to South Diversion Canal.

Note.--Shifting-control method used Jan. 20 to Feb. 24, Mar. 5-15, Hay 23 to Sept. 17.
422 SACRAMENTO RIVER BASIN

Stony Creek near Hamilton City, Calif.

Location (revised) . Lat 39°43'25", long 122°02'47", in Capay Grant, on right bank 

2.3 miles southwest of Hamilton City, 6 miles upstream from mouth, and 8 miles east 

of Orland, Glenn County.

Drainage area. 764 sq mi.

Records available.--January 1941 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 160 ft (from topographic map). Prior 

to February 1946, at site 3 miles upstream at different datum.

Average discharge . 16 years, 332 cfs (240,400 acre-ft per year).

Extremes.--Maximum discharge during year, 5,500 cfs Feb. 24 (gage height, 10.72 ft); no 

flow for several months.

1941-57: Maximum discharge, 37,500 cfs Mar. 1, 1941 (gage height, 6.35 ft, site 

and datum then in use); no flow part of each year.

Remarks. Records good. Flow regulated by East Park Reservoir beginning in 1910 (usable 

capacity, 50,620 acre-ft) and Stony Gorge Reservoir beginning in 1928 (usable capacity, 

50,100 acre-ft). Diversions for irrigation of about 17,200 acres above station in 

Orland Project, Bureau of Reclamation.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 24

4.7

4.8

4.9

5.0

5.1 

5.3

1.2 

2.5 

7.9

5.5 

6.0 

6.5 

7.0 

8.0 

10.0

530

1,500

4,270

5.0 

5.4

Feb. 25 to Sept. 30

0 5.8

6.5 6.3

12 7.0

26 8.0

46 10.0

102 11.0

192

380

770

1,570

4,270

6,040

Discharge, in cubic feet ond, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

£

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

iS

18.8

0.61

37

Nov.

30

22

9.7

4.7

3.2

1.1

.1

0

rj

0

0

0

0

0

0

0

0

0

*o

0

0

0

0

0

0

0

0

0

0

0

70.8

2.36

140

Dec.

(*)

0

0

0

Jan.

_o_

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

180

*226 ~W

46

23

12

7.1

3.2

.8

0

0

0

578.1

18.6

1,150

Feb.

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1,060

3,570

*4,470

1,880

1,540

1,120

-

13,640

487

27,050

Mar.

1,090

1,060

945

903

1,190

1,680

*1,660

1,080

805

620

510

515

566

480

450

668

530

530

455

440

500

530

505

460

440

390

358

335

307 340-

340

20,682

667

41,020

Apr.

307

254

*201

134

65

39

32

25

16

7.0

6.5

4.0 1/5*

20

56

124

160

395

530 550-

490

440

400

358

287

216

112

60

*34

28

5,345.5

178

10 , 600

May

21

20

28

27

24

36

32

34

56

62

69

62

58

39

29

20

12

29

217

371

*450

505

435

331

232

172

130

88

62

64

48

3,763

121

7,460

June

40

29

27

21

20

15

20

22

13

*18

12

4.4

0 3.7'

4.0

1.8

15

9.5

2.1

0

0

0

0

0

0

0

0

0

0

0

277.5

9.25

550

July

(*)

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956: Max 16,800 Min 0 Mean 699 Ac-ft 507,200

Water year 1956-57: Max 4,470 Mln 0 Mean 122 Ac-ft 88,010

Peak discharge (base, 2,000 cfs).--Feb. 24 (10 p.m.) 5,500 cfs (10.72 ft). 

* Discharge measurement or observation of no flow made on this day.
SACRAMENTO RIVER BASIN 423

Sacramento River at Butte City, Calif.

Location.--Lat 39°27i35", long 121°59'35", in NE^ sec. 32, T. 19 N., R. 1 ¥., on left bank 

U.5 mile south of Butte City.

Records available. April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 1957 in reports of Geological Survey. In reports of California Department of 

Water Resources 1939-57.

Gage.--Water-stage recorder. Datum of gage is set to datum of Corps of Engineers. Prior 

Eo December 1930, at site 0.5 mile upstream at same datum.

Average discharge.--17 years (1940-57), 12,400 cfs i,977,000 acre-ft per year).

Extremes. Maximum discharge during year, 59,500 cfs Mar. 6 (gage height, 3.00 ft); minimum, 4,540 cfs Feb. 6-7.

1940-57: Maximum discharge, 170,000 cfs Feb. 7, 1942 (gage height, 96.87 ft), from 

rating curve extended above 100,000 cfs.

1921-57: Minimum discharge recorded, 1,050 cfs July 15, 25, 26, 1931 (gage height, 

67.49 ft).

Remarks.--Records good. Natural flow of stream affected by storage reservoirs, power 

developments, bypassing for flood control, diversions for irrigation, and return flow 

from irrigated areas. Records of chemical analyses and water temperatures for the 

water year 1957 are given in WSP 1523.

Cooperation.-rRecords collected and prepared in cooperation with California Department of 

Water Resources.

Rating table, water year 1956-57 (gage height, in feet,

and discharge, in cubic feet per second)

(Shifting-control method used Apr. 26 to May 19, May 21

to July 24, Sept. 28-30)

70.4

71.0

73.0

76.0

4,520

5,540

10,200

18,200

30,000

43,500

59,500

Discharge, in cubic feet per second, water year October 1956 to September 1957

Da.y

1

Z

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

7,810

7,420

7,060

7,020

7,020

6,940

6,920

7,020

7,060

7,090

7,140

7,350 

7,330

7,280

7,280

7,260

7,260

*7,230

7,260

7,260

7,260

7,280

7,300

7,350

7,450

7,540

7,760

7,980

*7,830

8,050

10,400

230,210

7,426

456,600

Nov.

10,500

9,300

8,740

8,500

8,430

8,340

8,260

8,240

8,240

8,170

7,980

7,740 

*7,690

7,540

7,470

7,470

7,470

7,450

7,380

7,350

*7,400

7,260

7,060

7,040

7,040

6,990

6,870

6,900

6,870

6,850

-------

232,540

7,751

461,200

Dec.

6,850

6,900

6,850

6,800

6,940

7,140

6,970

6,970

6,920

*6,920

,180

,300 

,580

,350

,350

,330

,300

,300

,300

* ,280

,280

,260

,090

,850

6,800

6,780

6,780

6,580

6,360

6,080

5,640

215,830

6,962

428,100

Calendar year 1956; Max 145

Jan.

5,660

5,600

5,560

5,490

5,410

5,360

*5,340

5,340

5,320

5,320

5,340

5,490 

8,140

12,600

8.310

7,570

6,620

6,000

5,760

6,020

8,380

7,260

6,100

*5,600

5,410

5,250

5,160

5,020

4,940

4,920

4,890

189,180

6,103

375,200

Feb.

,860

,860

,870

,680

,580

,550

,550

,570

,660

,680

,630

* ,570 

,570

,570

,660

,760

,780

,820

,840

*4,840

4,890

5,310

7,780

20,800

49,200

52,800

39,300

33,100

-

-------

307,080

10,970

609,100

Mar.

23,500

32.100

43 , 500

49,200

54,600

59,200

58,800

47,000

32,300

25,400

*20,400

19,000

21,000

18,100

16,400

18,800

21,700

19,800

18,500

17,200

16,400

15,800

15,000

13,700

12,700

11,900

10,800

9,780

9,300

9,250

9,490

750,620

24,210

$1,489

Apr.

8,650

8,310

7,710

7,230

6,690

6,270

5,980

*5,760

5,410

5,070

4,860

4,600 

4,860

5,090

6,320

6,470

5,900

6,710

8,670

9,610

11,400

9, 970

8,860

8,340

7,760

7,090

6,560

6,140

5,920

6,000

_ --- 

208,210

6,940

413,000

May

6,320

6,490

7,180

7,110

6,650

7,110

7,260

7,260

7,420

7,900

8,580

9,390 

*9,420

9,580

10,000

9,910

9,460

9,780

19,800

55,800

31 , 500

25,100

18,600

16,000

15,200

15,500

14,900

14,500

12,500

12,000

11,700

587,720

12,510

769,000

June

11,500

11,100

10,800

10,600

10,100

9,810

8,490

9,100

8,620

*8,650

8,380

8,000 

,780

,660

,500

,450

,330

,230

,110

,020

,940

,780

,760

,730

6,710

6,580

6,850

6,690

6,670

7,110

-------

242,850

8,095

481,700

July

7,280

7,280

7,280

7,230

7,160

7,090

7,040

7,060

7,020

7,020

7,020

6,970 

6,990

7,020

*7,110

7,300

7,580

7,350

7,350

7,550

7,500

7,090

7,090

7,020

6,820

6,800

6,780

6,780

6,900

6,800

6,730

219,410

7,078

435,200

Aug.

6,760

6,690

6,600

6,620

6,670

6,690

6,670

6,600

6,670

6,670

6,690

*6,430 

6,160

6,060

6,060

6,040

6,040

6,060

6,060

6,080

6,100

6,100

6,160

6,140

6,160

6,160

6,180

6,250

6,340

6,340

6,450

196,700

6,345

390,100

Sept.

6,490

6,490

6,490

6,430

6,250

6,210

6,250

6,250

6,060

6,080

6,060

5,900 

5,980

6,020

6,120

6,180

*6,230

6,250

6,270

6,270

6,270

6,210

6,000

6,000

5,940

5,960

6,780

12,700

12,800

11,OOO

203,920

6,797

404,500

000 Min 5,640 Mean 16,190 Ac-ft 11,760,000

Water year 1956-57; Max 59,200 Min 4,550 Mean 9,272 Ac-ft 6,713,000

* Discharge measurement made on this day. 

t Expressed in thousands.
424 SACRAMENTO RIVER BASIN

Sacramento River at Colusa, Calif.

Location. Lat 39°12'50", long 121°59'55", at north end of Jimeno Grant, on right bank 

Just downstream from highway bridge at Colusa, Colusa County, at mile 89.4 upstream 

from Sacramento.

Records available.--April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 1957 in reports of Geological Survey. 1939-57 in reports of California 

Department of Water Resources.

Gage. Water-stage recorder. Gage is set to datum of Corps of Engineers. Prior to 

December 1930, water-stage recorder in center fender pier 50 ft upstream from bridge 

at same datum.

Average discharge. 17 years (1940-57), 10,500 cfs (7,602,000 acre-ft per year).

Extremes. Maximum discharge during year, 36,600 cfs Mar. 7 (gage height, 63.90 ft); minimum, 4,540 cfs Feb. 7.

1940-57: Maximum discharge, 49,000 cfs Feb. 8, 1942 (gage height, 69.20 ft). 

1921-57: Minimum discharge recorded, 820 cfs July 25, 26, 1931 (gage height, 

u4.7y it).

Remarks. Records good. Natrual flow of stream affected by storage reservoirs, power 

development, bypassing for flood control, and diversions for irrigation, and return 

flow from irrigated areas.

Cooperation.--Records collected and prepared in cooperation with California Department 

of Water Resources.

Revisions (water years). WSP 1345: 1952.

Rating tables, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second)

(Shifting-control method used Mar. 21 to Apr. 14, July 14, 15, 

July 19 to Sept. 10, Sept. 21-30)

Oct. 1 to Dec. 31 Jan. 1 to Sept. 30

41.0

43.0

46.0

5,740

7,540

10,600

39.9

44.0

50.0

57.0

64.0

4,520

8,750

16,000

25,000

36,800

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

a

9

10

11

12

13 

14 

15

16

17

IB

19

20

21 

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

7,810 

7,660

7,260

7,170

7,170

7,170

7,110 

*7,l66

7,220

7,240

7,240

7,350

7,440 

7,380 

7,360

7,350

7,340

7,320

7,350

7,300

7,320 

7,340

7,360

7,370

7,420

*7,480

7,620

7,790

7,800

7,810 

8,_820

230,530

7,436

457,200

Nov.

10.500 

9,340

8,790

8,480

8,350

8,270

8,200 

8,190

8,130

8,110

8,020

,790

* ,720 

,680 

,590

,580

,560

,560

,520

* ,480

,500 

,470

,280

,170

,220

,160

,100

,020

7,030

7,080

234,890

7,830

465,900

Dec.

,030 

,030

,040

,010

,080

,260

,180 

,090

,090

* ,090

,210

,360

,450 

.460 

7,450

,430

* ,410

,400

,400

,360

,380 

,350

,300

,050

,000

,960

,960

6,860

6,640

6,470 

6,040

220,840

7,124

438,000

Jan.

5,710 

5,730

5,700

5,620

5,530

5,450

*5,430 

5,420

5,410

5,410

5,380

5,540

6,330 

11.900 

10,200

8,060

7,310

6,470

6,020

5,920

7,790 

7,890

6,630

*5,930

5,620

5,460

5,310

5,180

5,050

4,980 

4.940

193,320

6,236

383,400

Feb.

4,900 

4,890

4,950

4,780

4,680

4,630

4^580 

47590

4,640

4,700

4,700

*4,660

4,660 

4,660 

4,680

4,800

4,820

4,820

' 4,870

4,880

*4,900 

5,060

6,770

13,300

29,400

54.800

33,400

32,300

254,820

9,101

505,400

Mar.

29,100 

28,400

32,900

34,300

35,100

*36,000

56,400 

35,500

32,700

29,500

*25,000

21,100

21,900 

21,100 

18,600

17,500

22,500

*21,700

20,800

19,100

17,600 

16,800

16,000

15,000

13,500

12,800

11,800

10,700

9,930

9.480 

97550"

682,760

22,020

tl,354

Apr.

9,120 

8,680

8,140

7,630

7,130

6,600

6,230 

*5,970

5,710

5,370

5,140

4,950

4.940 

5,280 

*5,880

6,940

6,460

6,640

8,050

9,070

11.000 

10, 760

9,450

8,730

8,110

7,550

7,010

6,520

6,190

6,100

215,290

7,176

427,000

May

6.550 

6,360

6,840

7,230

6,880

6,980

7,560 

7,560

7,580

7,730

8,220

9,180

*9,550 

9,690 

10,000

10,300

9,900

9,810

13,500

27,500

30.800 

20,100

23,100

18,500

15,800

15,300

14,900

14,400

*13,800

11,600 

11,700

386,900

12,480

767,400

June

11,200 

16,800

10,600

10,300

10,000

9,550

9,150 

8,790

8,260

*7,950

7,950

7,740

7,510 

7,360 

7,210

7,100

7,010

6,910

6,790

6,700

6,630 

6,530

6,430

*6,370

6,300

6.160

6,260

6,260

6,200

6,470

232,470

7,749

461,100

July

6,750 

6,810

6,820

6,810

6,730

6,600

6,540 

6,500

6,450

6,440

6,400

6,350

6,410 

6,420 

*6,500

6,630

6,870

6,910

6,920

7,040

7.110 

*6,900

6,820

6,770

6,660

6,640

6,590

6,600

6,660

6,670 

6,600

206,920

6,675

410,400

Aug.

6,600 

6,520

6,520

6,570

6,570

6,620

6,580 

6,570

6,600

6.680

6,650

*6,540

6,150 

6,040 

6,060

5.980

6,610

6,060

6,080

6,080

*6,180 

6,200

6,200

6,190

6,160

6,150

6,190

6,220

6,310

6,520 

6,540

195,940

6,321

388,600

Sept.

6,350 

6,420

6,410

6,400

6,200

6,090

6,130 

6,220

6,020

5,980

6,020

5,880

5.860 

5,980 

6,120

6,210

6,280

*6,320

6,400

6,430

6,450 

6,470

6,260

6,120

*6,090

6,010

6,440

9,960

12.700

11, 600

201,820

6,727

400,300

Calendar year 1956: Max 42,500 Mln 6,040 Mean 12,970 Ac-ft 9,415,000

Water year 1956-57: Max 36,400 Mln 4,580 Mean 8,922 Ac-ft 6,459,OOO

Discharge measurement made on this day. 

Expressed In thousands.
SACRAMENTO RIVER BASIN 425

Butte Creek near Chlco, Calif.

 Location.--Lat 39°43'34", long 121"42'28", in NW^NWj sec. 36, T. 22 N., R. 2 E., on right 

bank 0.7 mile downstream from Little Butte Creek and 7.5 miles east of Chlco.

Drainage area.--148 sq mi.

Records available. November 1930 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 320 ft (from topographic map). Prior to 

(Tug. 13, 1944, at site 0.4 mile upstream at different datum.

Average discharge.--26 years (1931-57), 398 cfs (288,100 acre-ft per year).

Extremes. Maximum discharge during year, 5,690 cfs Feb. 24 (gage height, 7.65 ft); minimum, 75 cfs Sept. 4.

1930-57: Maximum discharge, 18,700 cfs Dec. 22, 1955 (gage height, 13.35 ft), from 

rating curve extended above 6,900 cfs on basis of slope-area determination of peak 

flow; minimum, 10 cfs Nov. 29, 1952.

Remarks.--Records good. Records of chemical analyses for the water year 1957 are given in 

WSP 1523. Flow slightly regulated by storage in Magalla Reservoir (capacity, 

3,540 acre-ft). Diversions above station for Irrigation and domestic use of about 

4,200 acre-ft annually. Butte Creek receives considerable water above station from 

West Branch Feather River by way of De Sabla and Centervllle powerplants. Pacific Gas 

& Electric Co. has furnished the following record of this flow for water year 1957.

Month

October. ...........

March. .............

Mean 

discharge

78.7 

47.4

42.0

45.7

56.8

79.9

Runoff in 

acre-feet

4,842 

2,822

2,582

2,809

3,152

4,913

Month

April. .............

May................

July...............

September ..........

Water year .......

Mean 

discharge

82. 6 

85.1

83.3

66.3

66.0

63.7

66.5

Runoff in 

acre-feet

4,915 

5,230

4,960

4,080

4,060

3,790

48,155

Revisions (water years). WSP 1445: 1953(M).

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 24 Feb. 24 to Sept. 30

2.1

2.2 

2.5 

3.0

127

249

500

3.5 

4.0 

5.0 

7.0

795

1,170

2,100

4,490

2.1 

2.4 

2.7

121

213

375

3.0 570

4.0 1,370

5.5 2,800

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

He an

Ac-ft

Oct.

163

TST

167

167

167

163

163

167

171

171

187

179

179

167

167

167

167

171

175

171

171

*171

175

187

179

179

199

187

179

436 305"

5,764

186

11,430

Nov.

220

57J7

163

163

167

155

159

159

163

155

151

147

143

151

151

143

139

147

147

»143

143

143

147

147

139

139

135 T35"

143

135

4,579

153

9,080^

Dec.

139

135

135

147

175

155

147

147

143

139

151

155

163

159

155

151

143

147

*139

143

127 13"9

139

131

131

139

139

131

131 

127

131

4,433

143

8,790

Jan.

131

127

124

127

131

127

127

135

124

124

143

272

538 3"TB"

254

199

187

171

171

290

224

 191

171

163

159

151

127

167

135

159

147

5,611

181

11,130

Feb.

143

TBT

147

143

143

151

147

171

171

167

159

159

179

207

215

207

220

207

207

211

305

410

1,410

4.160

*2,490

2,080

1,630

1,130

-

17,120

611

33,960

Mar.

880

800

744

896

1,510

1,220

*992

840

944

816

720

848

744

660

760

816

712

645

585

549

542

487

454

435

423

417

405

393

417

435

435

21,324

688

42 , 300

Apr.

423

*399

387

381

375

375

363

357

399

363

271

33?

345

712 542"

461

542

622

585

540

514

500

474

454

435

417

405

405

405

*429

13,228

441

26,240

May

429

578

494

448

435

429

423

435

448

435

405

393

387

435

405

387

375

2,290

2,150

*1 , 440

1,120

952

824

720

660

615

570

542

521

494

480

20,719

668

41,100

June

448 423"

399

387

363

357

345

333

327

345

*315

298

293

288

276

271

260

251

246

246

236

232

227

227

218

213

209

205

205

190

8,633

288

17,120

July

202

T3T

186

183

179

179

183

175

175

175

175

175

175

169

169

*169

166

166

166

166

166

166

160

169

166

166

Teo" 151

160 

160

151

5,302

171

10,520

Aug.

157

148

157

160

TBT

157

157

154

157

160

145

157

145

*154

148

148

148

145

145

140

140

143

148

143

140

145

145

145

148

143

148

4,624

149

9,170

Sept.

145

145

145

121

TBT

154

135

138

151

143

138

138

148

148

143

145

140

145

140

135

140

135

138

135

133

*138

262" 322

157 

143

4,551

152

9,030

Calendar year 1956: Hax 8,450 Hln 127 Mean 543 Ac-ft 394,300

Water year 1956-57: Hax 4,160 Hln 121 Mean 318 Ac -ft 229,900

Peak discharge (base, 2,700 cfs). Feb. 24 (12 m. ) 5,690 cfs (7.65 ft); Hay 18 (4:30 p.m.)

3,900 cfs (6.42 ft).

Discharge measurement made on this day.
426 SACRAMENTO RIVER BASIN

Sacramento River below Wilklns Slough, Calif.

Location. Lat 39°QQ'35", long 121°49'25", In Jlmeno Grant, on right bank 1,500 ft downstream from Wilklns Slough, Colusa County, 6 miles southeast of Grimes, and at mile 

62.9 upstream from Sacramento.

Records available. August 1931 to October 1939 (low-water periods only) and June 1940 

to September 1957 in reports of Geological Survey. 1939-5V in reports of California 

Department of Water Resources.

Gage. Water-stage recorder. Gage is set to datum of Corps of Engineers. 

Average discharge. 17 years (1940-57), 9,191 cfs (6,654,000 acre-ft per year).

Extremes. Maximum discharge during year, 23,900 cfs Mar. 7 (gage height, 48.56 ft); minimum, 4,500 cfs Apr. 13 (gage height, 26.2V ft).

1940-57: Maximum discharge, 26,600 cfs Feb. 8, 1942 (gage height, 52.29 ft). 

1931-57: Minimum discharge recorded, 100 cfs Aug. 1, 1931 (gage height, 14.20 ft).

Remarks. Records good. Discharge measurements generally made twice a month. Natural 

flow of stream affected by storage reservoirs, power developments, bypassing for flood 

control, and diversions for irrigation and return flow from irrigated areas.

Cooperation.--Records collected and prepared in cooperation with California Department 

of Water Resources.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-it

Oct.

7,950

7,860

7,480

7,240

7,200

7,180

7,170

7,140

7,200

7,200

7,190

7,230

7,380

7,390

7,380

7,370

7,320

7,320

7,320

7,290

7,290

7,340

7,370

7,410

7,440

7,520

7,600

7,780

7,940

7,960 

8,280

230,740

7,443

457,700

Nov.

10,000

10,000

9,370

8,920

8,700

8,540

8,440

8,400

8,360

8,330

8,320

8,130

7,980

7,900

7,860

,800

,760

,720

,680

,620

,620

,620

,480

,320

,290

,270

,220

,150

7,120

7,140

241,060

8,035

478,100

Dec.

7,140

7,140

7,150

7,140

7,160

7,290

7,380

7,290

7,260

7,260

7,290

7,460

7,590

7,620

7,620

7,610

7,590

7,580

7,550

7,530

7,520

7,510

7,500

7,310

7,170

7,130

7,120

7,090

6,930

6,780 

6,470

226,180

7,296

448,600

Jan.

6,180

6,130

6,100

6,040

5,980

5,910

5,900

5,950

5,990

6,020

6,030

6,120

6,390

9,150

11,000

9,170

8,250

7,410

6,810

6,550

7,160

8,350

7,690

6,900

6,410

6,210

6,080

5,930

5,760

5,660 

5,580

208,810

6,736

414,200

Feb.

5,530

5,500

5,500

5,420

5,240

5,130

5,090

5,130

5,150

5,210

5,210

5,200

5,230

5,220

5,200

5,180

5,260

5,300

5,320

5,360

5,410

5,460

6,280

9,420

19,300

23,100

25,500

25,000

-

------

220,650

7,880

437,700

Mar.

22,500

22,100

22,800

25,200

25,400

25,700

25.900

23,800

25,200

22,600

21,800

20,600

20,500

20,300

18,600

17,200

19,300

20,200

19,600

18,500

1 7 , 200

16,300

15, 600

14,800

13,700

15,000

12,200

11,100

10,400

9,840 

9,980

571,720

18,440

*1,134

Apr.

9,620

9,210

8,710

8,150

7,680

7,160

6,800

6,350

6,030

5,550

5,230

4,850

4,600

4,900

5,220

6,550

6,450

6,250

7,110

8,490

9,710

10 , 400

9,410

8,450

7,760

7,080

6,520

5,680

5,240

5,010

209,750

6,992

416,000

May

5,050

5,220

5,410

6,080

6,120

5,840

6,190

6,420

6,560

6,830

7,520

8,070

8,690

8,850

9,090

9,450

9,390

9,250

10,800

19,400

22.400

22 , 500

21 , 200

18,800

1 6 , 300

15,100

14,500

13,900

15,500

11,900 

11,500

341,450

11,010

677,200

June

11.100

10,700

10,400

10,000

9,690

9^250

8,730

8,270

7,800

7,400

7,250

7,110

6,800

6,560

6,370

6,220

6,120

5,950

5,800

5,660

5,570

5,480

5,450

5,320

5,290

5,180

5,060

5,220

5,200

5,200

210,130

7,004

416,800

July

5,470

5,580

5,640

5,690

5,730

5,640

5,600

5,560

5,460

5,380

5,350

5,540

5,550

5,420

5,500

5,570

5,710

5,740

5,740

5,770

5,850

5,710

5,550

5,550

5,520

5,500

5,470

5,420

5,500

5,520

5,450

172,260

5,557

541,700

Aug.

5,400

5,380

5,360

5,410

5,440

5,460

5,480

5,390

5,380

5,490

5,630

5,650

5,340

5,100

5,050

4,960

4,900

4,960

4,980

4,940

4,930

4,950

4,990

5,020

5,040

5,010

5,000

5,010

5,120

5*280

161,270

5,202

319,900

Sept.

5,540

5,430

5,520

5,550

5,500

5,390

5,420

5,640

5,740

5,710

5,850

6,060

5,990

6,120

6,520

6,490

6,570

6,640

6,700

6,700

6,640

6,640

6,510

6,540

6,260

6,200

6,560

7,860

11,100

11,400

195,990

6,466

384,800

Calendar year 1956: Max 26,300 Min 5,130 Mean 11,090 Ac-ft 8,051,000

Water year 1956-57: Max 23,900 Mln 4,600 Mean 8,186 Ac-ft 5,927,000

* Expressed in thousands.
SACRAMENTO RIVER BASIN 427

Sacramento River at Knights Landing, Calif.

Location. Lat 38°48'10", long 121°42'55", in NE^ sec. 14, T. 11 N., R. 2 E., on left

bank Just upstream from Southern Pacific Railroad bridge at Knights Landing, 13.1 miles 

upstream from Feather River and at mile 34.0 upstream from Sacramento.

Records available. April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 1957 in reports of Geological Survey. In reports of California Department 

of Water Resources 1939-57.

e. Water-stage recorder. Gage is set to datum of Corps of Engineers. Prior to Dec. 9,

930, in fender pier of railroad bridge at same datum. Since Aug. 16, 1945, auxiliary 

water-stage recorder at datum of Corps of Engineers 6.0 miles downstream from base gage. 

Jan. 1, 1941, to June 30, 1945, at site 14.4 miles downstream from base gage at datum 

0.06 ft below datum of Corps of Engineers.

Average discharge.--17 years (1940-57), 9,697 cfs (7,020,000 acre-ft per year).

Extremes. Maximum discharge during year, 25,200 cfs Mar. 7 (gage height, 37.90 ft); minimum daily discharge, 4,510 cfs Apr. 30; minimum gage height, 16.15 ft June 29.

1940-57: Maximum discharge, 27,900 cfs Feb. 9, 194S; maximum gage height, 41.83 ft 

Feb. 8, 1942.

1921-57: Minimum discharge-recorded, 250 cfs July 23, 1931 (gage height, 7.80 ft).

Remarks. Records excellent except those for period of no gage-height record, which are 

fair. Discharge measurements generally made twice a month. Natural flow of stream 

affected by storage reservoirs, power developments, bypassing for flood control, diversions for irrigation, and considerable return flow from irrigated areas. Records of 

chemical analyses and water temperatures for the water year 1957 are given in WSP 1523.

Coc ;ration. Records collected and prepared in cooperation with California Department of 

ater Resources.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Calei

Oct.

8,660 

8,720 

8,170

7,680

7,760

7,670

7,730

7.570

7,770

7,760

7,760

7,760

7,880

8,020

7,980

7,880

7,810

7,830

7,840

7,840

7,850

7,930 

7,950

8,040

8,020

8,040

8,140

8,260

8,520

8,660 

8,790

248,290

8,009

492,500

Nov.

1O,OOO 

10.900 

10,300

9,510

9,050

8,970

8,790

8,810

8,760

8,740

8,760

8,660

8,460

8,410

8,320

8,240

8,320

8,250

8,280

8,260

8,200

8,2OO 

8,170

8,000

7,920

7,930

7,810

7,780

7,740

7,690

257,230

8,574

510,200

Dec.

7,710 

7,650 

7,780

7,700

7,590

7,790

7,870

8,210

8,030

8,050

7,940

7,950

8,040

8,180

8,260

8,250

8,130

8,030

7,810

7,830

,900

,920 

,980

,970

,760

,620

,560

,550

,440

 _ ',100

242,880

7,835

481,700

Jan.

6,810 

6,600 

6,600

6,410

6,450

6,390

6,340

6,310

6,390

6,480

6,580

6,500

6,370

7,850

11.900

11,000

9,660

8,480

7,630

7,160

7,030

8,720 

8,640

7,710

7,040

6,760

6,460

6,270

6,120

5, 980 

5,890

224,530

7,243

445,300

Feb.

5,750 

5,680 

5,690

5,660

5,470

5,320

5,240

5,220

5.080

5,220

5,240

5,180

5,210

5,230

5,140

5,150

5,090

5,300

5,160

a5, 280

a5,350

a5,6OO 

a6 , 400

alO.800

a!9,000

a23,000

a24,000

a24,600

224,460

8,016

445 , 200

Mar.

23,500 

23,000 

24,000

24,600

24,400

24,500

24,900

24 800

23 ',900

23,300

22,700

21,300

20,400

21,500

19,700

18,OOO

20,700

24,100

23,800

21,900

19,300

17,400 

16,900

15,900

14,600

13,800

13,100

12,400

11,300

10. 500 

10,500

610,700

19,700

tl,211

Apr.

10,400 

10,100 

9,860

9,190

8,710

8,130

7,730

7,540

7,060

6,530

5,8OO

5,190

4,810

4,940

5,020

6,390

7,010

6,420

7,220

9,100

10,300

11,300 

10,500

9,430

8,270

7,540

6,640

5,730

5,130

4^510

226,500

7,550

449,300

May

4,650 

4,850 

5,170

6,160

6,620

6,260

6,270

6,710

7,100

7,590

8,630

9,320

10,200

10,400

10,600

10,800

10,800

10,600

8,210

16,600

22,100

22,600 

21,900

19 , 800

16,800

15,700

15,200

14,400

13,9OO

12,300 

12,300

354,540

11,440

703,200

June

12,200 

11,800 

11,300

11,100

10,700

10,100

9,840

9,290

8,500

8,090

7,820

8,020

7,720

7,450

7,220

6,910

6,810

6,470

6,290

6,010

6,120

5,930 

5,770

5,640

5,53O

5,380

5,400

5,350

5,430

5,480

229,670

7,656

455,500

July

5,750 

5 950 

6,160

6,070

6,180

6,280

6,200

6,220

6,030

5,960

5,930

5,820

5,960

6,000

6,120

6,200

6,260

6,200

6,170

6,110

6,200

6,400 

6,300

6,220

6,200

6,200

6,140

6,O6O

6,160

6, 250 

6,240

189,940

6,127

376,700

Aug.

6,050 

5,890 

5,890

6,050

6,110

6,010

6,090

5,970

5,990

6,150

6,290

6.480

6,260

6,030

5,810

5,810

5,760

5,750

6,010

5,890

5,840

5,760 

5,840

5,910

6,OOO

5,960

5,880

5,900

6,070

6,180 

6,280

185,910

5,997

368,700

Sept.

6,500 

6,590 

6,670

6,780

6,750

6,610

6,560

6,930

7,240

7,240

7,300

7,400

7,420

7,570

7,760

7,870

7,780

7,730

7,640

7,760

7,710

7,710 

7,370

6,930

6,900

6,860

6,800

7,820

11 , 400

14,300

227,900

7,597

452,000

idar year 1956: Max 26,000 Min 5,830 Mean 11,670 Ac-ft 8,471,000

Water year 1956-57: Max 24,900 Mln 4,510 Mean 8,829 Ac-ft 6,391,000

* Expressed In thousands.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

station below Wilklns Slough.
428 SACRAMENTO RIVER BASIN

Big Grizzly Creek near Portola, Calif.

Location. Lat 39°52'42", long 102°27'55", in NW-jNE^ sec. 12, T. 23 N. , R. 13 E., on left 

Bank 4.8 miles north of Portola and 5.4 miles upstream from mouth.

Drainage area. 44.6 sq mi.

Records available.--October 1925 to September 1932, October 1950 to September 1953, June 

1954 to September 1957. Prior to October 1952, published as Grizzly Creek near Portola.

Gage. Water-stage recorder. Altitude of gage is 5,580 ft (from topographic map). 

X5ct. 26, 1925, to Sept. 30, 1932, at datum 2.04 ft higher.

Average discharge. 13 years, 40.5 cfs (29,320 acre-ft per year).

Extremes.--Maximum discharge during year, 892 cfs Feb. 24 (gage height, 5.63 ft), from 

rating curve extended above 580 cfs on basis of slope-area determination at gage height 

7.48 ft; minimum, 0.7 cfs Aug. 19, 20.

1925-32, 1950-53, 1954-57; Maximum discharge, 2,680 cfs Mar. 26, 1928, (gage 

height, 9.54 ft, present datum), from rating curve extended above 330 cfs; minimum, 

0.1 cfs many days in 1931, 1955.

Remarks. Records good. No storage above station. Diversions for irrigation of about 

400 acres above station.

Revisions.. WSP 1395: Drainage area.

Rating tables, wate year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 3O

0.8 

.9

1.1 

1.3

1.5 

1.7 

2.0

0.8 

1.4 

2.8

5.0 

9.0

2.3 

2.6 

3.0 

3.5 

4.0 

5.0

150

240

365

665

0.8 

1.2 

1.7

1.1 3.1

1.3 5.2

1.5 9.0

Note. Same as preceding 

table above 1.5 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.2

1.5

2.7

1.8

2.1

1.8

1.9

2.4

2.4

2.5

7.6

5.0

3.4

2.8

2.6

2.5

2.4

2.4

2.5

2.6

2.5

2.4

3.0

3.3

3.8

6.7

7.8

sTo 4.0

7.0

5.0

104.6

3.37

207

Nov.

6.0

6.9

6.0

5.7

5.3

5.3

5.7

*5.7

6.4

7.4

8.1

7.2

6.4

4.8

4.4

4.3

4.6

4.8

3.5

3.5

3.4

3.5

3.6

3.6

3.6

3.6

3.6

3.7

3.5

3.6

147.7

4.92

293

Dec.

3.8

4.3

4.2

3.4

2.6

1.9

1.9

2.6

2.8

3.5

6.9

23

24

17

9.3

6.9

6.2

5.3

4.8

4.6

4.4

4.0

3.4

3.7

3.6

3.6

3.4

3.1

3.2

3.4

3.3

178.1

5.75

353

Jan.

3.1

3.1

3.2

3.3

3.1

3.1

3.1

2.6 Ta

3.2

3.2

3.1

3.3

*3.0

3.0

3.1

3.1

3.1

3.1

2.9

3.1

3.2

3.3

3.3

3.3

3.3

3.3

3.4

374

3.4

3.4

98.2

3.17

195

Feb.

3.4

¥^

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.6

3.7

3.9

5.2

6.0

7.2

7.4

8.5

11

11

11

12

18

74

497

664

532

 447

250

-

2,603.9

93.0

5,160

Mar.

194

194

136

131

408

278

190

160

218

110

95

63

63

74

64

53

46

46

64

80

75

45

49

60

78

84

93

128

142

144

132

3,697

119

7,330

Apr.

106

75

96

110

113

113

74

80

82

86

78

65

62

171

102

*75

69

86

64

59

113

77

58

51

45

41

41

43

46

47

2,328

77.6

4,620

May

47

73

57

42

40

40

40

44

43

39

36

32

31

31

29

24

23

168

325

T74

*114

96

96

66

51

44

38

36

47

55

36

2,017

65.1

4,000

June

29

24

20

17

15

13

12

11

9.7

11

11

8.5

7.8

6.9

6.4

6.2

5.8

5.4

5.0

4.7

4.4

4.1

3.9

3.7

3.4

3.2

3.0

2.9

2.8

Z^T_

263.5

8.78

523

July

2.6

2.5

2.4

2.3

2.2

2.1

2.0

.0

.0

.9

.7

.7

.9

.6

.5

.6

.5

.3

.5

.2

.2

.3

.3

.3

.2

.1

.0

.0

.0

.0

.0

49.9

1.61

99

Aug.

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.1

1.2

1.2

1.2

1.1

1.1

1.0

1.0

1.0

.9

.9

.8

.8

.9

.9

.9

.9

.9

.9

.9

1.0

1.0

1.1

1.1

30.9

l.OO

61

Sept.

^ 

*

'.3

.3

.4

.8

2.3

3.0

39.1

1.30

78

Calendar year 1956: Max 453 Mln O.8 Mean 64.7 Ac-ft 46,97O

Water year 1956-57: Max 664 Mln O.8 Mean 31.7 Ac-ft 22,920

Peak discharge (base, 41O cfs). Peb. 24 (5 p.m.) 892 cfs (5.63 ft); Feb. 27 (5 p.m.) 634 cfs 

(4.91 ft); Mar. 5 (6 p.m.) 519 efs (4.55 ft); May 18 (12 p.m.) 558 cfs (4.66 ft)._________ 

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 429

Middle Fork Feather River near Clio, Calif.

Location. Lat 39°45'10", long 120°35'40", in SE£ sec. 23, T. 22 N. , R. 12 E., on left 

bank 0.6 mile upstream from Frazier Creek, 1.0 mile northwest of Clio, and 2.2 miles 

southeast of Blairsden.

Drainage area.--698 'sq mi.

Records available. October 1925 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 4,380 ft (from topographic map). Prior 

T'o July 29, 1953, at site 0.5 mile downstream at different datum.

Average discharge. 32 years, 275 cfs (199,100 acre-ft per year).

Extremes. Maximum discharge during year, 5,130 cfs-Feb. 25 (gage height, 11.51 ft); minimum, 8.7 cfs Aug. 26, 27.

1925-57: Maximum discharge, 14,400 cfs Dec. 23, 1955 (gage height, 15.77 ft), from 

rating curve extended above 6,300 cfs by logarithmic plotting; minimum, 4.3 cfs 

Sept. 5, 1934.

Remarks. Records good. Diversions for irrigation of about 40,000 acres above station, 

of which 14,500 acres receive supplemental water of about 7,000 acre-ft annually from 

Little Truckee River.

Revisions (water years). WSP 1445: 1928, 1930, 1932.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, in cubic feet per second) 

Oct. 1 to Oct. 30 Oct. 30 to Feb. 25 Feb. 26 to Sept. 30

2.6

2.7 

3.0 

3.5 

4.0 

5.0

54

104

172

358

2.9 53

3.0 61

3.5 115

4.0 183

5.0 363

6.0

7.0

8.0

10.0

12.0

640

1,060

1,600

3,380

6,000

2.2 

2.5 

3.0 

3.5 

4.0 

5.0

26

61

115

182

340

6.0 590

7.0 960

8.0 1,430

9.0 2,120

11.0 4,300

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

26

26

26

26

26

26

28

32

33

50

99

58

57

53

51

51

55

54

53

51

50

49

63

59

57

93

89

82

80

341

190

2,034

65.6

4,030

Nov.

138

136

142

172

170

152

133

*119

109

103

103

103

101

95

92

91

89

90

89

80

77

77

75

74

73

73

73

73

74

76

3,052

102

6,050

Dec.

76

76

75

91

92

79

73

71

68

70

104

110

120

129

142

183

193

T76

145

125

110

96

92

86

79

75

73

72

70

69

JJ6

3,086

99.6

6,120

Jan.

66

66

69

66

68

68

67

66

58

*61

65

69

113 "98

84

76

72

68

70

78

75

75

82

80

78

75

70

72

68

68

68

2,259

72.9

4,480

Feb.

68

68

67

67

67

67

67

72

71

72

78

 86

113

147

166

236

390

472

883

921

758

778

1,390

3,160

4,680

*4,270

2,600

1,680

-

23,694

846

47,000

Mar.

1,260

1,010

820

697

964

868

760

764

916

736

708

768

666

666

722

620

530

478

442

432

455

374

352

346

350

334

332

334

386

400

420

18,910

610

37,510

Apr.

412

394

398

398

374

350

312

272

296

294

280

264

248

376

325

*283

300

336

327

. 325

374

394

348

325

231

243

243

228

222

222

9,394

313

18,630

May

222

267

249

212

199

202

228

243

237

225

213

199

200

202

189

178

171

527

890

584

 458

478

672

602

503

445

400

364

350

344

307

10,560

341

20,950

June

281

260

243

225

210

186

164

141

124

113

105

101

96

89

86

82

75

69

67

66

63

59

57

53

49

48

47

43

40

38

3,280

109

6,510

July

37

37

35

37

35

35

36

35

31

26

25

22

22

23

24

23

21

18

 17

17

18

18

18

17

16

15

14

15

14

12

13

726

23.4

1,440

Aug.

13

13

13

13

12

12

13

13

13

13

13

13

11

12

12

12

12

13

12

12

12

12

14

14

12

11

11

13

14

15

15

393

12.7

780

Sept.

14

14

14

13

14

13

12

13

14

14

 14

13

13

14

19

18

19

20

20

20

20

19

19

16

17

17

24

29

28

31

531

17.7

1,050

Calendar year 1956: Max 3,850 Min 23 Mean 540 Ac-ft 392,300

Water year 1956-57: Max 4,880 Min 11 Mean 213 Ac-ft 154,600

Peak discharge (base. 850 cfs).--Feb. 25 (3:30 a.m.) 5,130 cfs (11.51 ft); Mar. 6 (12:30 a.m.) 

1,070 cfs (7.25 ft); May 19 (6 a.m.) 1,140 cfs (7.40 ft).______________________________

* Discharge measurement made on this day.
430 SACRAMENTO RIVER BASIN

Middle Fork Feather River below Sloat, Calif.

Location. Lat 39°52'00", long 120°46'15", in SltfJ sec. 8, T. 23 N., R. 11 E. , on right 

bank 0.6 mile downstream from Bell Bar Creek, 1.1 miles west of Bell Bar, and 

2.2 miles west of Sloat.

Drainage area.--836 sq mi.

Records available. December 1940 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 4,010 ft (from topographic map). Prior 

to Sept. 9, 1953, at site 0.6 mile upstream at different datum.

Average discharge. 16 years (1914-57), 578 cfs (418,500 acre-ft per year).

Extremes. Maximum discharge during year, 9,230 cfs Feb. 24 (gage height, 10.24 ft); mlnimum, 48 cfs Sept. 16, 17.

1940-57: Maximum discharge, 31,200 cfs Dec. 23, 1955 (gage height, 19.25 ft), from 

rating curve extended above 8,200 cfs on basis of slope-area determination of peak 

flow; minimum, 28 cfs Sept. 8, 14, 1955.

Remarks.--Records good. Flow slightly regulated by millpond at Sloat. Diversions for 

irrigation of about 1,000 acres between stations near Clio and below Sloat. See 

Remarks for station near Clio.

Revisions (water years). WSP 1395: 1954.

Rating tables, water year 1956-57 (gage height, In feet, and dlschar 

In cubic feet per second)

Oct. 3O to Feb. 24 Feb. 25 to Sept. 3O

2.7 

3.0 

3.3 

3.6 

4.0

140 

260 

42O 

650

2.9 

3.2 

3.6 

4.0 

5.0 

7.0 

9.0

200

390

64O

1,440

3,470

6,750

2.4 

2.7 

.3.0 

3.5 

4.0 

5.0 

7.0 

10.0

40

103

182

385

680

1,440

3,470

8,750

Discharge, In cubic feet pe cond, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

81

79

79

81

85

83

85

98

98

105

260

161

144

131

125

125

122

125

122

119

119

116

134

144

134

199

256

199

179

556

428

4,772

154

9,470

Nov.

268

245

236

258

268

254

222

*214

200

200

196

196

204

188

176

168

168

164

160

146

143

143

143

140

133

T59" 129

129

133

133

5,486

183

10,880

Dec.

133

133

133

153

188

146

143

143

236

245

157

214

218

232

232

268

286

272

232

209

192

176

192

168

146

146

153

168

136

129

1ZT

5,708

184

11,320

Jan.

153

153

129

129

133

120

126

129

157

254

*196

150

300

222

188

164

160

150

157

168

172

176

200

184

160

245

375

538

524

773

1^.170

7,855

253

15,580

Feb.

1,110

780

633

724

822

906

577

418

254

164

150

*T64

214

305

340

396

505

626

1.O1O

1,190

1,000

1,050

1,930

5,580

7,520

*6,350

4,020

2,710

-

41,448

1,480

82,210

Mar.

2,050

1,750

,490

,280

,830

,800

,550

,430

,720

,410

,260

,450

,200

,160

,250

1,130

950

859

778

752

797

680

628

608

608

589 559"

634

738

778

797

34,545

1,114

68,520

Apr.

764

712

712

732

732

732

667

589

622

648

641

608

576

971

535

*693

700

719

680

660

712

738

693

667

582

550

552

602

648

693

20,463

682

40,590

May

719

831

712

654

686

726

758

764

726

680

641

589

576

576

552

532

563

2,470

2,650

1,690

* ,250

,140

,290

,19O

,080

,040

,040

,020

971

964

957

30,017

968

59,540

June

936 "594"

797

752

738

674

596

563

5O8

457

430

405

400

365

335

308

282

270

262

254

246

236

226

215

202

189

182

179

170

162

12,233

408

24,260

July

153

150

143

137

132

130

130

125

120

113

108

101

99

99

96

94

92

*90

88

83

81

81

81

77

77

75

75

73

70

70

68

3,111

100

6,170

Aug.

£B" 66

64

62

62

60

60

60

60

60

60

60

60

60

60

58

58

58

56

56

56

56

56

56

56

56

56

54

54

54

j>2

1,812

58.5

3,590

Sept.

52

52

5050"

50

50

50

50

50

50

*50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

64

7070"

1,558

51.9

3,090

Calendar year 1956: Max 5,670 Win 68 Mean 900 Ac-ft 653,700

Water year 1956-57: Max 7,520 Mln 50 Mean 463 Ac-ft 335.2OO

Peak discharge (base. 1,600 cfs). Feb. 24 (11:30 p.m.) 9,230 cfs (10.24 ft); Mar. 9 (5 a.m.) 

1,980 efs (5.60 ft); May 18 (7:50 p.m.) 4,490 cfs (7.70 ft).__________________________

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 431

Middle Fork Feather River near Merrimac, Calif.

Location. La t 39°42'30", long 121°16'15", In NE£ sec. 2, T. 21 N., R. 6 E., on right 

bank 400 ft downstream from bridge on Mllsap Bar Road, 500 ft downstream from Little 

North Fork, 4.5 miles southeast of Merrimac, and 20 miles northeast of Oroville.

Drainage area. 1,078 sq ml.

Reeords available.--October 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage Is 1,560 ft (from topographic map).

Average discharge. 6 years, 1,598 cfs (1,157,000 acre-ft per year).

Extremes. Maximum discharge during year, 21,500 cfs Feb. 24 (gage height, 13.93 ft); from 

rating curve extended above 14,000 cfs on basis of comparison of upstream and downstream peak discharges; minimum, 147 cfs Sept. 9, 10.

1951-57: Maximum discharge, 62,000 cfs Dec. 23, 1955 (gage height, 21.2 ft); from 

rating curve extended above 13 ,000 cfs on basis of comparison of upstream and downstream peak discharges and study of runoff per square mile for intervening areas; 

minimum, 108 cfs Sept. 6, 7, 8, 1955.

Flood of Nov. 21, 1950, reached a stage of 17.1 ft, from floodmarks.(discharge, 

34,300 cfs on basis of slope-area determination of peak flow).

Flood of Dec. 10, 1937, reached a stage about 2.3 ft higher than that of Nov. 21, 

1950.

Remarks. Records good. No diversions between stations below Sloat and near Merrimac.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

3.2

4.0

6.0

138

216

353

665

1,290

2,200

7.0

8.0

10.0

12.0

15.0

3,350

4,900

9,020

14,600

25,800

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Tota:

Mean

Ac-ft

Oct.

198

198

196

198

205

203

201

214

223

228

379

372

285

266

253

248

243

240

240

240

235

230

274

282

261

366

507

382

334

1.200 

1,080

9,981

322

19,800

Nov.

551

448

420

413

430

434

424

413

410

*406

399

385

379

363

341

328

322

316

308

296

288

282

280

277

271

269

269

266

266

265

10,517

351

20,860

Dec.

266

263

266

299

375

328

285

245

248

282

343

413

406

427

402

402

424

424

399

366

344

308

302

299

293

274

261

258

266

266 

263

9,997

322

19,830

Jan.

248

245

266

248

263

253

250

280

235

218

310

*406

'692

527

448

399

359

353

438

388

334

350

359

353

308

288

302

293

288 

288

10,999

355

21,820

Feb.

310

338

288

282

288

293

319

369

359

334

344

385

503

*710

760

805

852

986

1,160

1,530

1,490

1,850

5,020

15, 500

*12,400

9,550

6,220

-

.......

78,745

2,812

156,200

Mar.

*4,570

4,020

3,550

3,510

6.000

5,960

4,690

3,940

4,380

3,620

3,170

3,830

3,240

2,900

2,920

2,900

2,520

2,290

2, 100

2,010

2,080

1,860

1,680

1,610

1,570

1,530

1.520

1,590

1,910

1,930 

1,910

91,310

2,945

181,100

Apr.

1,830

1,680

1,660

1,720

1,770

1,810

1,680

1,580

1,570

1,620

1,610

1,570

1.520

2.950

2,400

2,020

2,030

2,030

1,910

1,790

1,780

1,890

1,840

1,780

1,710

1,580

1,620

1,680

1,790

1,860

54,280

1,809

107,700

May

1,830

*2,390

2,050

1,880

1,910

1,970

1,970

2,000

2,000

1,820

1,680

1,560

1,510

1,530

1,420

1,590

1,430

6,660

7.920

5,580

4,110

5,580

3,590

3,140

2,860

2,710

2,630

2,530

2,410

2,320 

2,240

82,220

2,652

163,100

June

2.190

2,060

1,880

 1,750

1,670

1,580

1,430

1,330

1,250

1,190

1,090

1,030

1,010

944

882

828

775

740

720

701

678

656

634

616

584

555

551

523

507

491

30,825

1,028

61,140

July

471

455

444

424

413

399

396

385

375

359

347

338

328

322

519

313

502

296

288

282

274

274

271

266

258

250

245

258

253

*228 

221

10,014

323

19,860

Aug.

216

216

212

207

205

205

205

205

201

198

192

190

190

184

180

178

176

172

170

170

169

169

169

167

167

165

165

161

T5T

163 

165

5,687

183

11,280

Sept.

165

161

158

156

154

154

152

152

149

149

151

151

151

151

151

151

156

163

165

160

156

154

152

152

*151

152

362

296

250

207

5,112

170

10,140

Calendar year 1956: Max 12,700 Mln 190 Mean 1,855 Ac-ft 1,346,000

Water year 1956-57 : Max 15,500 Mln 149 Mean 1,095 Ac-ft 792,800

Peak discharge (base, 4,500 cfs). Feb. 24 (4:30 p.m.) 21,500 cfs (13.93 ft); Mar. 5 (8 to 10 p.m.) 

6,560 cfs (8.86 ft); May 18 (ll p.m.) 10,800 cfs (10.70 ft)._______________________________

* Discharge measurement made on this day.
432 SACRAMENTO RIVER BASIN

Lost Creek near Clipper Mills, Calif.

Location.--Lat 39°34'25", long 121°08'25", in SW£ sec. 24, T. 20 N., R. 7 E., on left

 bank 0.3 mile downstream from Lost Creek Reservoir, 0.3 mile downstream from Pinkard 

Creek, and 2.8 miles north of town of Clipper Mills.

Drainage area.--30.1 sq mi.

Records available. October 1927 to September 1941, October 1948 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 3,170 ft (from topographic map).

Average discharge. 23 years, 73.8 cfs (53,430 acre-ft per year), unadjusted for storage 

and diversions.

Extremes. Maximum discharge during year, 3,080 cfs Feb. 24 (gage height, 5.45 ft), from 

rating curve extended above 520 cfs on basis of studies of downstream peak discharges 

and runoff per square mile for intervening areas; minimum, 1.6 cfs Aug. 4, 5.

1927-41, 1948-57: Maximum discharge, 5,000 cfs Dec. 22, 1955 (gage height, 6.90 ft), 

from rating curve extended above 150 cfs on basis of studies of downstream peak discharges and runoff per square mile for intervening areas; no flow at times in 1940-41, 

1949-50, 1954.

Remarks. Records good except those for period of doubtful gage-height record and those

 above 1,500 cfs, which are fair. Storage in Lost Creek Reservoir (capacity, 5780 aereft with 5 feet of flashboards) above station was 3,168 acre-ft on Sept. 30, 1956, and 

2,790 acre-ft on Sept. 30, 1957. Oroville-Wyandotte Canal diverts at Lost Creek Dam.

Revisions (water years).--WSP 1395: 1954. 

Rating tables water year 1956-57 (gage height, in feet, and discharge, if 

(Shifting-control method used Oct. 9 to Nov. 25)

cond)

Oct. 1 to Nov. 25

0.7 6.2

.9 10

1.1 16

Nov. 26 to Feb. 23 Feb. 23 to Sept. 30

1.0 

1.2

2.2

3.0

2.0 

2.3

74

140

290 1.0 

1.2

1.5

2.0 

2.4 

3.0 

3.5 

4.0 

5.0

69

155

260

540

860

1,280

2,440

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

(ft)

Mean

Ac-ft

Oct.

12

13

13

13

13

14

14

15

14

15

16

16

16

16

16

16

16

12 

15

16

15

11

8.7

9.4

9.4

9.4

9.4

9.4

9.2

10

9.2

401.1

12.9

796

-338

1,950

39.2

2,410

Nov.

9.2

8.7

8.5

8.1

7.9

7.6

7.6

7.4

7.4

JLfl.

7.0

7.0

7.2

.2

.0

.0

.0

.0

.2

.O

.0

.0

.0

.4

.4

* .5

.4

.4

7.4

7.4

222.9

7.43

442

+201

1,420

34.6

2,060

Dec.

7.4

7.4

7.4

2^5-

7.5

7.5

7.5

7.5

7.5

7.5

7.5

7.5

7.5

7.4

7.4

7.4

7.4

7.2 

7.2

7.2

7.1

7.1

7.1

7.1

7.1

7.1

7.0

7 T'.O0

7.0 

7.0

226.0

7.29

448

-75

1,430

A

29.3

1,800

Jan.

6.8

6.8

6.8

776"

7.0

7.0

7.0

7.0

7.0

5.3

3.6

4.2

3.5

3.3

3.

3.

3.

3.37~

3.

3.

3.

*3.

3.

3.

3.

3.

3.

3. 

3.

139.3

4.49

276

+951

990

3 jus ted

36.1

2,220

Feb.

3.0

3.0

2.9

279

3.0

3.0

3.0

3.2

3.2

3.1

3.1

3.1

3.2

3.2

27

60

60

62 

62

66

126

263

878

2.220

1,480

804

630

390

-

------

7,170.9

256

14,220

+1,297

268

for chan

284

15,780

Mar.

300

272

248

280

582

*510

395

312

332

260

236

308

248

106

142

221

190

180 

169

163

180

159

151

141

135

131

127

125

141

137 

149

7,030

227

13,940

+362

328

ge in co

238

14,630

Apr.

137

125

117

*112

107

104

97

93

91

83

86

47

22

1BT

121

117

161

153 

143

131

125

115

107

104

96

39

82

77

72

69

3,139

105

6,230

+214

659

ntents a

119

7,100

May

69

115

80

69

65

61

58

64

70

64

57

53

53

61

55

46

47

490 

490

340

248

209

182

159

139

129

113

107

101

93

86

3,973

128

7,880

0

1,570

id diver

154

9,450

June

79

73

69

64

61

57

56

51

52

49

44

*47

37

31

29

26

25

23 

22

21

20

19

18

16

16

14

14

12

11

11

1,067

35.6

2,120

-29

1,800

ions

65.4

3,890

July

~9.7 10

9.4

9.1

9.1

9.1

9.1

8.9

8.9

8.6

8.4

8.6

8.2

7.5

9.7

10

10

*8.4 

6.3

6.5

6.8

7.3

7.3

6.8

5.5

5.2

5.2

5.5

5.8

5.5

4^.5

240.9

7.77

478

-426

2,200

36.6

2,250

Aug.

4.4

4.5

3.3

1.7

273

2.7

2.7

2.7

4.4

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8 

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

' 6.8

6.8

6.8 

6.8

178.3

5.75

354

-931

2,220

26.7

1,640

Sept.

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8 

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

204.0

6.80

405

-1,604

2,150

16.0

951

Ca.lendar year 1956: 

Water year 1956-57:

Max 

Max

1,950 

2,220

Mln 2.0 

Mln 1 . 7

Mean 113 

Mean 65.7

Ac-ft 

Ac-ft

81,850 

47,590

Adjusted

Calendar year 1956: 

Water year 1956-57:

Mean 

Mean

132 

88.4

Cf sm 

Cfsm

In. 

In.

Ac-ft 

Ac-ft

95,480 

64,180

* Discharge measurement made on this day.

t Change In contents, in acre-feet, in Lost Creek Reservoirs furnished by Oroville-Wyandotte Irrigation District.

 ft Diversions, in acre-feet, to Oroville-Wyandotte Canal. 

Note. Doubtful gage-height record Aug. 9 to Sept. 30.
SACRAMENTO RIVER BASIN 433 

Palermo Canal at Enterprise, Calif.

Location. Lat 39°32'05", long 121°20'40", in NVf£ sec. 6, T. 19 N. , R. 6 E., on left 

bank 400 ft downstream from intake at diversion dam on South Fork Feather River, 

1 mile east of highway bridge at Enterprise, and 11 miles east of Oroville.

Records available . October 1911 to September 1957. Prior to October 1926, published as 

Palermo Land and Water Co. canal at Enterprise.

Gage. Water-stage recorder and Parshall flume. Altitude of gage is 650 ft (from topographic map). Prior to Nov. 17, 1932, staff gages at several sites about 1 mile downstream at various daturas. Nov. 17, 1932, to Oct. 21, 1934, staff gage at present site 

and datum.

Average discharge. 46 years, 18.7 cfs (13,540 acre-ft per year).

Extremes. 1911-57: Maximum daily discharge, 41 cfs June 14, 17, 1918, July 10-30, 1922; 

no flow at times in most years.

Remarks. Records good. Canal diverts from left bank of South Fork Feather River 1 mile 

above Enterprise. Water is used for irrigation near Oroville.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

iota:

Mean

Ac-ft

Oct.

30

Jo

30

30

30

30

30

30

30

30

30

30

23

26

26

26

26

26

26

27

27

27

24

21

21

15

9.6

9.4

9.4

6.5 

5.2

746.1

24.1

1,480

Nov.

5.0

570

5.4

5.6

5.6

*5.8

6.0

67^

6.0

6.0

6.0

5.8

5.8

5.8

5.8

5.8

5.8

5.6

5.4

5.4

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.0

5.2

5 2

165.4

5.51

328

Dec.

5.2

5.2

5.2

5.2

5.2

5.2

5.0

4.9

5.0

5.0

5.0

5.0

5.0

5.0

5.0

4.9

4.9

*4.9

4.9

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7 

4.7

152.1

4.91

302

Jan.

.9

_£

.0

.9

.9

.9

.9

.9

.7

.5

.5

.5

.1

.0

.8

.8

.8

3.8

3.8

3.8

3.8

3.8

*4.0

4.0

3.8

3.8

3.8

3.8

3.8

a3 . 8 

a3.8

130.7

4.22

259

Feb.

a .9

a .0

a .0

.0

.0

.1

.1

.1

.3

.3

.3

.1

.0

.0

* .0

.0

.0

.0

.7

.4

.4

.4

.1

 .5

.5

.3

.0

-

118.1

4.22

234

Mar.

3.8

3.8

3.8

3.8

4.0

4.0

3.8

3.8

3.8

5.6

3.6

3.8

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

5.0

5.6

5.6

5.8

6.5 675"

6.5

6.5

6.5

6.5

142.6

4.60

283

Apr.

6.5

6.5

6.5

6.5

*6.5

8.1

9.6

9.4

9.4

9.4

9.4

9.4

9.2

9.2

9.0

8.8

8.8

9.0

9.2

9.2

9.2

9.2

9.2

9.2

9.2

9.0

9.2

9.0

12

ii

268.8

8.96

533

May

14

14

14

14

14

17

19

19

19

19

19

23

28

28

28

27

28

21

18

19

19

19

19

19

19

19

19

*24

29

31

3T

650

21.0

1,290

June

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

930

31.0

1,840

July

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

*31

31

31

31

31

31

31

31

31

31

31

31

31

31 

31

961

31.0

1,910

Aug.

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31

31 

31

961

31.0

1,910

Sept.

31

31

31

31

32.

32

32

31

32

32

31

32

32

32

32

32

32

32

31

32

32

32

31

*31

31

31

20

13

13

13

880

29.3

1,750

Calendar year 1956: Max 32 Mln 0 Mean 1.6.6 Ac-ft 12,040

Water year 1956-57: Max 32 Mln 3.5 Mean 16.7 Ac-ft 12,110

* Discharge measurement made on this day.

a No gage-height record; discharge Interpolated.
434 SACRAMENTO RIVER BASIN 

South Fork Feather River at Enterprise, Calif.

Location. Lat 39°32'15", long 121°20'45", in NW£ sec. 6, T. 19 N. , R. 6 E., on left bank 

0.5 mile upstream from McCabe Creek, 1 mile upstream from highway bridge at Enterprise, and 11 miles east of Oroville.

Drainage area. 134 sq mi.

Records available.--October 1911 to September 1957.

Gage . Water-stage recorder. Altitude of gage is 640 ft (from topographic nap). Prior to 

Oct. 18, 1930, staff gage at site half a mile downstream at different datum.

Average discharge.--46 years, 313 cfs (226,600 acre-ft per year).

Extremes. Maximum discharge during year, 9,060 cfs Feb. 24 (gage height, 15.6 ft), from 

rating curve extended above 4,600 cfs on basis of computed flow over diversion dam for 

flood of December 1955; minimum, 0.6 cfs Sept. 24, 25, 26.

1911-57: Maximum discharge, 19,200 cfs Dec. 22, 1955 (gage height, 21.60 ft), from 

rating curve extended above 4 ,600 cfs on basis of computed flow over diversion dam 

a quarter of a mile upstream; no flow Aug. 9, 10, Sept. 24-30, 1950.

Revisions. Figures of maximum discharge for the water years 1918 and 1926 have 

been revised to 1,840 cfs Feb. 6. 1918 (gage height, 6.4 ft, site and datum then in 

use) and 3,500 cfs Feb. 4, 1926 (gage height, 9.7 ft, site and datum then in use), 

superseding those published in WSP 481 and 631, respectively.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Storage and diversions above station for irrigation of about 4,500 acres in OrovilleWyandotte Irrigation District. (See preceding page for records for Palermo Canal and 

Remarks for Lost Creek near Clipper Mills).

Revisions. Revised figures of discharge, in cubic feet per second, for the water year 

1926, superseding those published in WSP 631, are given herewith:

1926 

Feb. 3.................. 910

4.................. 3,180

5. ................. 1,900

6. ................. 1,580

7.................. 965

8.................. 800

Month

February 1926. .................

Water year 1925-26 ............ 

Calendar year 1926 ............

era-days

19,742

67,665.5 

85,954.0

Maximum

3,180

3,180 

3,180

Minimum

245

1.0 

1.0

Mean

705

185 

235

Runoff In

39,200

134,000 

171,000

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

T2~ u

12

12

15

13

13

16

17

17

33

42

32

28

25

24

23

23

19 

21

20

20

55

55

42

66

110

78

66

305 

224

1,449

46.7

2,870

Nov.

"98 119

86

80

79

*79

78

76

76

69

64

63

66

64

a62

a6O

a58

a56

a54 

a53

52

51

50

49

49

48

48

47

46

T6

1,926

64.2

3,820

Dec.

4545-

45

55

82.

64

55

48

54

52

55

67

66

69

76

62

59

*58

57 

56

54

52

52

52

51

50

48

48

48

48 

48

1,721

55.5

3,410

Jan.

47

46

45

T6

46

46

46

52

47

48

57

107

383

220

153

126

107

94

84 

149

109

90

*79

73

71

63

56

64

57

59 

59

2,729

88.0

5,410

Feb.

59

64

56

58

57

56

62

117

107

86

80

86

107

131

*158

209

211

216

216 

216

320

540

2,180

6,090

4,700

3,370

*2,380

1,650

23,583

842

46,780

Calendar year 1956: Max 5,820 Mln 6.0

Mar.

1,190

1,060

956

1,130

2.170

2,000

1,550

1,240

1,350

1,020

890

1,090

897

838

812

690

699

645

591 

573

594

519

480

453

438

420

414

423

480

519 

531

26,662

860

52,880

Apr.

510

459

450

459

*465

471

438

429

412

4OO

392

356

309

838

615

546

657

675

600 

540

510

510

498

489

474

447

438

432

441

432

14,692

490

29,140

May

420

*594

480

420

4O6

398

384

387

412

389

342

314

290

307

278

251

251

1,860

2,550 

al.800

al,300

al,05o

a850

726

654

591

543

*486

453

403 

369

19,741

637

39,160

June

306" 335

276

254

233

233

204

191

185

180

164

157

146

132

125

118

108

99

95 

89

86

80

75

70

64

60

57

54

56

48

4,280

143

8,490

July

46

4T

40

38

36

35

35

34

31

28

27

26

26

25

25

27

*25

23

20 

18

19

19

18

19

16

13

12

11

13

11

10

767

24.7

1,520

Aug.

7.6

11

8.2

4.8

3.1

7.9

11

13

-9.0 14

7.3

7.0

7.0

6.8

*6.5

6.0

5.8

5.2

5.2 

5.0

4.8

4.8

4.4

4.2

3.9

3.9

3.8

3.9

4.1

4.4

4.6

198.2

6.39

393

Sept.

4.2

4.2

3.2

2.9

2.4

2.1

2.1

1.7

1.5

1.6

1.9

1.6

1.6

2.0

1.6

1.9

2.7

4.8

4.1 

2.9

2.2

1.7

1.2

*.6

.6

.9

54

82

43

33

270.2

9.01

536

Mean 452 Ac-ft 327,800

Water year 1956-57: Max 6,090 Mln 0.6 Mean 269 Ac-ft 194,400

Peak discharge (base, 1,400 cfs). Feb. 24 (10 p.m.) 9,060 cfs (15.6 ft); Mar. 5 (10 p.m.) 2,340 cfs

(9.3 ft); May 18 (9 p.m.) 3,860 cfs (11.2 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Feather River at Bldwell Bar.
SACRAMENTO RIVER BASIN 435

Feather River at Bidwell Bar, Calif. 

Location.--Lat 39°33'15", long 121°26'15", in NE^NWir sec. 32, T. 20 N., R. 5 E., on left

bank Just upstream from suspension bridge at Bidwell Bar, 2 miles upstream from North

Pork and 7 miles northeast of Oroville. 

Drainage area. 1,353 sq mi. 

Records available.--October 1911 to September 1957. Published as Middle Pork Feather River

near Oroville prior to September 1925 and as Middle Pork Feather River at Bidwell Bar

October 1925 to September 1950. 

Gage.--Water-stage recorder. Altitude of gage is 290 ft (from topographic map). Prior to

S"ept. 17, 1930, staff gage at same site and datum. 

Average discharge.--46 years, 1,865 cfs (1,350,000 acre-ft per year). 

Extremes.--Maxfflum discharge during year, 32,700 cfs Feb. 24 (gage height, 16.01 ft); minimum, 188 cfs Sept. 10.

1911-57: Maximum discharge, 104,000 cfs Dec. 23, 1955 (gage height, 25.5 ft), from

rating curve extended above 26,000 cfs on basis of studies of upstream and downstream

peaks; minimum, 88 cfs Jan. 8, 1937.

Maximum stage known, 32.1 ft January 1862.

Revisions. The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede figures published in the water-supply

papers indicated.

WSP

391 

411 

461 

511 

611 

651

Water 

year

1914 

1915 

1917 

1920 

1925 

1927

Date

Dec. 

May 

Feb. 

Apr. 

Feb. 

Feb.

31, 1913 

11, 1915 

25, 1917 

15, 1920 

6, 1925 

21, 1927

Discharge 

(cfs)

47,100 

31,300 

23,100 

9,760 

28,300 

40,300

Gage height 

(feet)t

18.0 

15.5 

14.0 

10.0 

15.0 

17.0

t Maximum observed. 

Remarks. Records good. Flow slightly regulated by small reservoirs above station.

Several diversions above station for irrigation. See Remarks for stations upstream. 

Revisions (water years). WSP 861: 1928(M). Revised figures of discharge, in cubic feet

per second, for high-water periods in the water years 1914 and 1927, superseding those

published in WSP 391 and 651, are given herewith:

Dec. 31, 1913........ 35,500

Feb. 21, 1927........ 40,300

Feb. 22, 1927........ 25,600

Feb. 23, 1927........ 17,400

Month Maximum

40,300

Minimum

210

Mean

2,700

Runoff In 

acre-feet

1,960,000

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16 

17

18

19

20

21

22

23

24

25

26

27 

28

29

30

31

Total

Mean

Ac-ft

Oct.

§62" 262

262

265

291

282

268

294

309

309

448

574

420 

381

360

345 

336

333

333

330

327

321

410

458

399

525

SOS 

624

510

1.870

1,870

14,783

477

29,320

Nov.

924

747)

660

632

637

642

632

619

606 *590

578

558

542 

542

510

483 

469

462

455

438

427

424

417

414

408

402

399 

396

393

59O

15,789

526

31,320

Dec.

390

390

387

424

602

530

444

393

378

40T

480

562

594 

602

606

562 *582

594

57O

534

498

462

441

441

430

417

396 

390

393

396

399

14,692

474

29,140

Jan.

381

372

375

384

375

375

375

405

384

556

595

72O

1.820 

1,300

942

775 

675

610

570

916

725

602

566

558

566

51O

450 

469

455

448

455

18,265

589

56,250

Feb.

469

522

458

45O

TIT

452

469

628

642

562

550

590

755 

*1,010

1,110

1,220 

1,240

1,58O

1,510

1,930

2,220

2,860

7,540

23,000

*25.200

17,900

*15, 800 

8,660

-

115,528

4,126

229,100

Mar.

6,590

5,680

5.12O

5,460

9.550

8,960

7,060

5,890

6,590

5,270

4,610

5,510

4,730 

4,140

4,200

4,500 

5,720

5,420

5,150

2,960

3,070

2,810

2,590

2,470

2,420

2,560

2.520 

2,590

2,680

2,870

2 j 890

135,160

4,36O

268,100

Apr.

2,780

2,560

2,500

2,560

2,620

2,660

2,520

2,380

2,310

2,350

2,540

2,240

2.150 

4.060

3, '456

2,910 

5,100

*5,200

2,950

2,750

2,670

2,760

2,720

2,650

2,580

2,4OO

2,400 

2,460

2,560

2,600

8O.17O

2,672

159,000

May

2,650

5,290

2,920

2,640

2,620

2,640

2,640

2,640

2,760

2,590

2,560

2,200

2.O8O 

2,170

1,990

1.910 

1,960

11. 100

10, 6OO

7,350

5,840

5,O2O

4,650

4,240

5,880

5.62O

5,470 

5,340

5,200

5.O2O

2,900

114,270

3,686

226,700

June

2.8OO

2,690

2,470

*2,500

2,180

2,100

1,900

1,780

1,690

1,640

1,520

1,440

1,400 

1,550

1,260

1,200 

1,120

1,070

1,020

996

966

956

895

855

825

780

755 

75O

715

682

42,045

1.4O2

85,400

July

66O

632

606

582

566

546

554

550

510

490

480

455

455 

444

441

450 

*42O

405

596

595

584

581

575

572

560

545

556 

5 SO

521

518

509

15,806

445

27,580

Aug.

5O3

29T

294

288

279

279

285

285

285

282

268

262

258 

255

250

245 

24O

255

852

252

228

228

225

225

22S

245

248 

245

232

5l2~ 220

7,897

255

15,660

Sept.

225

22O

215

208

205

202

200

198

192

190

190

192

192 

195

195

195 

2O8

210

228

215

205

200

195

195 *192

190

'2"6"0~ 270 

210

250

6,222

207

12,540

Calendar year 1956 : Max 24,300 Mln 255 Mean 2,750 Ac-ft 1,991,000

Water year 1956-57: Max 23,200 Mln 190 Mean 1,585 Ac-ft 1,148,000

Peak discharge (base, 5.6OO cfs). Feb. 24 (7 p.m.) 52,700 cfs (16.Ol ft); Mar. 5~{S to 9 p.m.)

10,200 cfs (10.98 ft); Mar. 12 (8 a.m.) 6.540 cfs (9.20 ft); May 18 (5 p.m.) 16,600 cfs (12.75 ft).

* Discharge measurement made on this day. 

510529 O-59-29
436 SACRAMENTO RIVER BASIN

Lake Almanor near Prattville, Calif.

Location.--Lat 40°10'30", long 121°05'25", in NWir sec. 28, T. 27 N., R. 8 E., at outlet 

tower at dam on North Pork Feather River, 5 miles southeast of Prattville.

Drainage area. 506 sq mi.

Records available. October 1913 to September 1957 (yearly summaries only, prior to 

October 1930 published in WSP 881).

Gage. Staff gage read once daily. Datum of gage is at mean sea level.

Extremes. Maximum contents observed during year, 650,900 acre-ft June 9, 10 (elevation, 

4,474.05 ft); minimum observed, 406,000 acre-ft Feb. 22 (elevation, 4,461.71 ft).

1913-57: Maximum contents, 798,900 acre-ft June 9, 1928 (elevation, 4,480.5 ft); 

minimum, 5,230 acre-ft Feb. 5, 1918 (elevation, 4,416.1 ft).

Remarks. Lake is formed by earth-fill dam; storage began in July 1913; dam raised to

elevation 4,455 ft above mean sea level in 1917 and to 4,515 ft above mean sea level in 

1927. Usable capacity, 649,800 acre-ft between elevations 4,400 (bottom of outlet to 

river) and 4,474 ft (present upper storage limit). Water is diverted by tunnel to Butt 

Valley Reservoir for use in Caribou powerplant and some is released down North Fork 

Feather River (see following page). Records, including extremes, show contents at 

12 p. m. interpolated from readings made at 5 p.m. All contents are available for 

diversion to Butt Valley Reservoir except 15,700 acre-ft (below elevation 4,429 ft) that 

can only be released down river.

Cooperation. Records of contents, furnished by Pacific Gas & Electric Co. in connection 

with a Federal Power Commission project.

Capacity table, water year 1956-57 (elevation, In feet, and 

usable contents, In thousands of acre-feet)

4.461

4.462

4,464

4,466

4,468

393.4

411.2

447.6

485.3

524.3

4,470

4,472

4.474

4.475

564.8

606.6

649.8

671.9

Usable contents. In thousands of acre feet, at 12 p.m., water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

{ + )

(*)

Oct.

528.1 

526.1

524.1

522.2

520.2

518.2

517.0

515.6

513.9

512.1

511.5

510.7

509.5

508.3

506.8

504.8

503.1

501.5

499.8

498.2

496.6

495.1

493.6

491.6

489.7

488.5

487.6

486.0

485.3

487.4 

488.0

4,466.14

-41,700

Nov.

488.2 

487.8

486.6

485.1

483.7

482.2

479.9

477.4

475.2

472.9

470.6

468.5

466.3

463.5

461.0

459.1

457.6

455.8

454.1

452.4

450.6

448.7

446.9

445.2

444.1

443.7

443.2

442.6

441.9

441.2

4,463.65

-46,800

Dec.

440.4 

440.1

439.3

439.3

439.0

438.4

438.0

437.7

437.3

436.6

436.2

436.0

435.7

434.9

434.6

434.2

433.6

432.5

432.0

431.3

430.9

430.5

430.0

429.6

428.9

428.2

427.8

427.1

426.9

426.4 

425.8

4,462.81

-15,400

Jan.

424.9 

42 4'. 4

423.6

423.1

422.5

422.0

421.6

421.5

420.9

420.2

420.2

421.3

423.4

423.1

422.7

422.0

421.5

420.9

421.1

422.0

421.8

421.5

420.6

419.8

419.1

418.6

418.2

418.2

417.5

416.2 

415.5

4,462.24

-10,300

Feb.

414.6 

414.4

414.4

413.9

414.1

413.5

413.2

412.8

412.1

411.4

410.5

409.8

409.8

409.4

408.9

408.3

407.8

407.4

407.1

406.5

406.2

406.0

406. 9

416.8

417.7

424.2

428.4

452.2

4,463.16

+16,700

Mar.

435.8 

439.1

441.9

445.0

448.5

452.6

456.2

459.9

464.0

467.2

469.7

473.6

477.2

479.9

483.0

485.5

487.4

489.5

491.2

493.0

494.3

495.9

498.0

500.1

501.9

503.5

504.8

505.6

506.4

507.2 

507.6

4,467.15

+75,400

Apr.

508.0

568. 6

509.3

510.9

512.3

513.8

516.0

518.4

520.4

522.2

524.0

525.1

528.1

532.1

534.7

537.3

539.6

542.0

544.2

546.2

548.2

550.3

552.3

554.2

556.2

557.8

559.9

561.9

564.0

565.2

4,470.02

+57,600

May

568.9 

571.8

574.1

576.2

578.2

580.7

583.6

586.8

589.3

591.6

593.5

595.8

597.9

600.0

601.9

604.0

606.0

613.8

620.5

624.6

627.4

628.9

631.9

634.8

637.6

640.4

643.3

644.6

645.7

646.0 

646.3

4,473.84

+81,100

June

647.2 

647.9

648.7

649.0

649.2

649.8

649.8

650.7

650.9

650 .9

650.7

650.1

649.6

649.4

649.2

648.7

647.9

647.0

646.1

645.5

645.0

644.6

644.1

643.5

642.6

642.2

641.7

641.3

640.9

640.2

4^73.56

-6,100

July

638.0 

637.2

636.5

635.4

634.8

633.7

633.0

632.2

631.3

630.0

628.9

628.3

627.2

626.3

625.4

624.4

623.1

622.2

621.1

620.5

619.4

618.8

617.9

616.6

615.8

614.7

613.8

612.8

611.5

610.6 

609.6

4^72.14

-30,600

Aug.

608.3 

607.2

606.4

605.3

604.0

603.0

601.9

600.7

599.6

598.5

597.5

596.4

595.4

594.3

593.3

592.4

591.4

590.3

589.3

588.2

587.0

585.9

584.9

583.6

582.6

581.4

580.3

579.3

578.2

577.0 

576.2

4,470.55

-35,400

Sept.

574.7 

573.7

572.6

571.8

570.6

569.3

568.7

567.9

567.3

566.0

564.8

563.0

560.9

558.9

556.8

553.7

551.3

549.1

547.0

544.2

541.2

538.0

535.3

535.3

531.9

531.3

531.9

531.1

530.5

529.1

4,468.24

-47,100

Calendar year 1956.................... * +54,100

Water year 1956-57.................... * -600

t Elevation, In feet, at end of month. 

* Change In contents, In acre-feet.
SACRAMENTO RIVER BASIN 437

North Fork Feather River near Prattville, Calif.

Location. Lat 40°10', long 121°06', in SW£ sec. 28, T. 27 N., R. 8 E., on left bank

0.5 mile downstream from Almanor Dam, 5 miles southeast of Prattville, and 9 miles

upstream from Butt Creek. 

Drainage area. 507 sq mi. 

Records available.--June 1905 to September 1957 (daily discharges for July 1921 to Septemher 1936 Include water diverted through Almanor-Butt Creek tunnel).

ere. Water-stage recorder with compound rectangular concrete weir. Altitude of gage is 

"T.380 ft (from topographic map). Prior to Oct. 1, 1936, staff gages or water-stage

recorders at several sites within half a mile of present site at various daturas. 

Average discharge. 51 years (1905-10, 1911-57), 894 cfa (647,200 acre-ft per year),

including diversion through Almanor-Butt Creek tunnel. 

Extremes.--Maximum discharge during year, 1,170 cfs Nov. 7-10 (gage height, 4.91 ft); minimum daily, 7.6 cfs Dec. 15-18, 22-26, Dec. 31 to Jan. 7, Jan. 13-18. Extremes do not

include diversions through Almanor-Butt Creek tunnel.

1905-57: Maximum discharge, 10,000 cfs Mar. 19, 1907, before construction of dam

(gage height, 16.2 ft, at former site), from rating curve extended above 3,700 cfs;

no flow Apr. 15, 16, 1914, at times January to April 1919, and Apr. 21, 1923. 

Remarks. Records excellent. Flow regulated by Lake Almanor beginning in 1913 (see preceding page). Water is diverted for power from Lake Almanor through Almanor-Butt

Creek tunnel to Butt Creek. Fif-res of daily discharge show flow of river only;

monthly figures also show conbincd flow of river and tunnel. 

Cooperation.--water-stage-recorder graph and eight discharge measurements furnished by

Pacific Gas & Electric Co. in connection with a- Federal Power Commission project. 

Revisions (water years).--WSP 1245: 1951 (yearly summaries). WSP 1285: 1952 (yearly

summaries).

Rating table, water year 1956-57 (gage height, In feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Sept. 13-24, 28-30)

1.4

1.5 

1.7

4.2

8.5

20

2.0 

2.5 

3.0

48

117

230

3.5 

4.0 

5.0

395

615

1,230

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29 

30

31

Total

Mean

Ac-ft

(t)

Oct.

709

720

650

676

829

877 

770

645 

645

615

332

304

304

336

547

698

*748

640

575

575

575

665

692

650

650

650

645

565

435

32

17,915

578

35,530

56,620

Nov.

153

493

640

640

731

919 

1,050

1.170 

1,170

1,170

1,160

1,160

1,120

895

692

645

645

640

640

640

640

640

529

225

49

10

9.5

9.5

9.5

18,504.0

617

36,700

53,990

Dec.

9,5

9^

9.5

9.5

9.5

9.5 

9.5

9.5 

9.5

9.5

8.5

8.0

8.0

8.0

7.6

7.6

7.6

7.6

8.0

8.0

 8.0

7.6

7.6

7.6

7.6

7.6

8.0

8.0

8.0

7^6

259.5

8.37

515

55,010

Jan.

7.6

TT6

7.6

7.6

7.6

7.6 

7.6

8.0 

8.0

8.0

8.0

8.0

7.6

7.6

7.6

7.6

7.6

7.6

8.0

8.S

8.S

8.S

8.5

8.5

8.0

8.0

8.5

8.5

8.5

O)

248.8

8.03

493

54,890

Feb.

9.5

9^5

9.5

9.5

9.5 

9.5

9.5 

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

10

14

TJ

13

11

11

-

281.0

10.0

557

45,650

Mar.

10

10

10

11

10 

10

10 

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10 

10

10

311

10.0

617

7,000

Apr.

10

10

10

10

9.5

9.5 

9.5

9.5 

10

*10

10

10

10

11

TT

11

11

11

11

11

11

10

10

10

10

10

9.5

9.5

9.5 

9 5

304.0

10.1

603

5,060

May

16

24

29

29

29

30 

30

30 

31

31

31

31

32

33

33

33

33

33

33

101

-38 126

38

36

38

38

38

38

36 

38

39

1,179

38.0

2,340

12,530

June

39

39

39

104

114

40 

40

39 

68

198

198

92

41

36

35

34

34

34

34

*34

34

33

3T

33

33

33

33

33

34

34

1,625

54.2

3,220

54,800

July

33

3T

33

33

33

33 

33

33 

33

33

32

32

33

33

33

33

33

33

33

33

33

33

*33

33

32

31

3T

31

31 

31

31

1,008

32.5

2,000

57 , 700

Aug.

30

33

34

35

3T

35 

33

33 

33

33

32

32

32

33

32

31

31

31

31

31

31

31

30

30

30

30

31

32

32 

32

32

991

32.0

1,970

57,470

Sept.

32

?2

32

32

*32

33 

33

33 

32

32

136

325

493

595

650

704

704

770

799

799

799

799

682

328

86

152

350

399

399 

467

10,761

359

21,340

55,590

Mean 

Ac-ft

1,499 

92,150

1,524 

90,690

Comblr

903 

55,520

led flow

901 

55,380

of river and Aln

832 

46,210

124 

7,620

lanor-Butt Creek

95.2 

5,660

242 

14,870

tunnel

975 

58,020

971 

59,700 59,

967 1,293 

440 76,930

River only

Calendar year 1956: Max 1,660 Mln 7.2 

Water year 1956-57: Max 1,170 Min 7.6

Mean 411 

Mean 146

Ac -ft 298,200 

Ac-ft 105,900

Combined flow

Calendar year 1956: Mean 1,275 Cfsm 

Water year 1956-57: Mean 859 Cfsm

In 

In

Ac-ft 925,900 

Ac-ft 622,200

* Discharge measurement made on this day. 

t Diversion, In acre-feet, through Almenor-Butt Creek tunnel, computed as difference In flow 

between the two stations on Butt Creek. There Is some unmeasured Inflow between the two stations.
438 SACRAMENTO RIVER BASIN

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif.

Location. Lat 40°11', long 121°11', in NVfi sec. 22, T. 27 N., R. 7 E., on left bank 

0.2 mile upstream from outlet of tunnel from Lake Almanor to Butt Creek and 2.2 miles 

southwest of Prattville.

Drainage area. --67. 0 sq mi.

Records available. October 1936 to September 1957. Published as "above tunnel No. 1" 

1936-40. Records for water year 1938, not previously published, are included herein.

Gage . Water- stage recorder. Altitude of gage is 4,400 ft (from topographic map). Prior 

TJO Nov. 12, 1948, at site 1.5 miles upstream at different datum.

Average discharge. 21 years, 77.2 cfs (55,890 acre-ft per year).

Extremes . --1936-37; Maximum discharge during year, 216 cfs May 4 (gage height, 4.40 ft); 

minimum, 3.2 cfs Dec. 11.

1937-38: Maximum discharge during year, 2,320 cfs Dec. 11 (gage height, 6.48 ft, 

site and datum then In use), from rating curve extended above 170 cfs on basis of 

shape of later ratings; minimum, 10 cfs Oct. 1.

1956-57: Maximum discharge during year, 806 cfs Feb. 24 (gage height, 3.54 ft), 

from rating curve extended above 290 cfs by logarithmic plotting; minimum, 24 cfs 

Jan. 6.

1936-57: Maximum discharge, that of Dec. 11, 1937; minimum, that of Dec. 11, 1936.

Revisions. The maximum discharge for the water year 1943 has been revised to 

932 crs Jan. 21, 1943 (gage height, 5.14 ft), superseding figure published in WSP 981.

Remarks . Records good. No storage above station. Wallack ditch, above station, diverts 

several cubic feet per second during each irrigation season into Yellow Creek basin.

Cooperation. Water-stage-recorder graph and 11 discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Revisions. Revised figures of discharge for the water year 1937 

published In WSP 831, are given herein.

superseding those

Rating tables, water year 1956-57 (gage height, in- feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Feb. 28 to Mar. 12)

Oct. 1 to Apr. 22 Apr. 22 to Sept. 30

1.1 

1.4 

1.7 

2.O

32

60

102

16O

2.5 

3.0 

4.0

292

500

1,140

0.5

.7

1.0

1.3 

1.8

120

226

Discharge, in cubic feet per second, water year October 1936 to September 1937

Day

1

2

3

4

5

6

7

8

9

1O

11

12

13

14

15

16

17

18

19

2O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

14

IB- 15

15

14

14

14

14

14

14

14

14

13

IT

14

14

14

14

14

14

14

14

14

14

14

13

13

13

14 

14

14

432

13.9

857

Nov.

14

T?

11

12

13

13

12

11

11

11

12

11

11

11

11

11

11

10

10

10

10

10

10

9.5

9.5

9.5

9.5

9

9

2ii

322.5

10.8

640

Dec.

8

8

9

6.5

8.5

8.5

9

9

9

8.5

6

S

9

9.5

10

11

9

9

11

10

11

11

11

1412"

10

10

10

10

10

10

295.5

9.53

586

Jan.

10

10

10

10

10

10

10 9.5

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

12 

17

12

335.5

10.8

665

Feb.

12

12

12

12

11^

11

15

1615"

15

15

15

15

15

15

16

16

15

15

14

14

14

14

15

14

14

14

14

-

395

14.1

783

Mar.

14

IT

16

17

19

21

23

24

29

32

64

7262"

51

46

45

45

4O

35

30

19

25

28

22

21

23

23

23

24

25

29

961

31.0

1,910

Apr.

45

55

55

50

55

60

65

65

68

69

70

74

116

159

164

141

118

116

122

135

152

143

132

140

155

155

 159

146

146

155

3,290 no

6,530

Hay

170

190

203

210

200

200

190

190

190

184

170

177

190

196

196

190

170

159

144

134

130

128

126

125

121

116

113

108

103

95

90

4,908

158

9,730

June

84

W

76

72

69

65

62

57

55

52

49

45

44

43

41

52

46

43

40

38

36

 33

31

29

26

26

26

26

26

25_

1,396

46.5

2,770

July

24

2T

23

22

22

22

20

20

21

20

20

22

20

20

19

17

17

17

16

18

19

18

17

17

17

17

17

16

16

16

15

588

19.0

1,17O

Aug.

IB- 15

15

14

14

14

13

14

14

14

14

13

12

12

12

12

12

12

12

12

11

11

11

11

12

12

12

12

12

12

11

392

12.6

778

Sept.

11

11

11

10

10

10

10

10

10

10

12

T?

12

9.6

J7S

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.6

10

10

10

3O3.4

10.1

602

Calendar year 1936: Max - Win - Mean - Ac-ft -

Water year 1936-37: Max 210 Mln 6 Mean 37.3 Ac-ft 27,O20

Peak discharge (base, 510 efs). No peak above base.

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 439

Butt Creek above Alaanor-Butt Creek tunnel near Prattville, Calif . Continued

Discharge, in cubic feet per second, water year October 1937 to September 1936

Day

1

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

15

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1Z

34

2?

22

20

 17

17

17

17

17

17 

17

17

26

30

24

22

21

20

20

20

20

20

19

19

19

19

19

19

20

24

634

20.5

1,260

Nov.

23

22

21

21

21

22

22

21

20

2T

52 

36

29

46

45

66

133

59

138

549

186

103

234

137

103

92

81

75

70

66

2,515

83.8

4,990

Dec.

64

62

61

59

58

57

56

BT

64

649

1,450 

649

430

294

237

197

180

160

165

140

135

110

100

100

95

90

80

80

80

89

84

6,111

197

12,120

Jan.

82

90

35

75

70

66

66

66

66

66

66 

68

68

69

70

70

70

70

70

68

68

68

64

58

62

60

58

58

56

54

46

2,075

66.9

4,120

Feb.

50

48

40

50

55

60

65

60

50

60

60 

70

E4

50

50

50

50

55

55

55

55

55

55

60

60

60

60

60

1,562

55.8

3,100

Mar.

90

100

100

93

89

87

84

81

5T

81

84 

134

1ST

156

135

148

132

123

148

230

180

155

185

235

188

168

160

156

146

137

130

4,197

135

8,320

Apr.

128

128

141

150

143

132

135

160

186

200

214 

222

217

224

237

255

291

400

478

490

512

544

534

522

462

425

430

420

415

490

9,285

310

18,420

May

478

451

*405

415

405

390

390

410

425

425

446 

468

534

586

598

580

528

 468

405

358

337

337

358

376

386

395

372

350

333

317

30EL

13,031

420

25,850

June

302

302

302

298

280

264

255

240

219

200

188 

168

156

148

139

134

125

114

110

105

102

 98

95

92

85

76

75

73

79

78

4,902

163

9,720

July

71

69

66

64

61

59

54

54

53

51

51

*51

50

49

49

46

45

44

44

46

44

43

42

41

41

40

42

41

 40

39

4T

1,531

49.4

3,040

Aug.

41

4T

41

40

40

40

40

39

38

36

36 

35

34

32

32

32

31

31

29

28

29

29

29

30

29

30

29

29

29

29

28

1,036

33.4

2,050

Sept.

28

28

28

28

29

29

30

30

30

29

 29 

29

29

28

28

28

27

2T

27

27

27

27

28

28

28

28

31

38

3?

30

865

28.8

1,720

Calendar year 1937: Max 1,430 Min 9.5 Mean 59.8 Ac-ft 43,310

Water year 1937-38: Max 1,430 Min 12 Mean 131 Ac-ft 94,410

ft).

* Discharge measurement made on this day.

Note. Daily discharge for water year not previously published.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

47

T?

47

48

50

47

50

56

51

54

65

54

52

51

51

51

 50

51

51

51

51

51

60

57

56

73

68

59

58

~TS 133 

1,763

56.9

3,500

Nov.

60

55

57

54

53

53

53

53

52

52

52

52

51

49

49

49

49

48

47

45.

45

45

45

45

45

45

45

»46

50

50

1,498

49.9

2,970

Dec.

50

49

46

46

46

45

42

38

41

48

64

56

56

51

47

46

44

44

44

43

43

38

42

42

40

38

38

40

41

44

43

1,395

45.0

2,770

Calendar year 1956; Max 535

Jan.

42

41

42

39

39

38

41

41

36

US

45

46

44

4948"

45

44

42

45

44

42

40

 42

45

44

39

36

44

40

43

44

1,310

42.3

2,600

Feb.

44

44

38

4T

44

44

44

44

44

44

44

44

51

54

56

54

53

54

56

54

57

70

169

589 455"

423

305

*203

-

3,262

116

6,470

Mar.

172

182

160

167

280

262

221

189

237

167

152

170

135

120

118

111

100

97

97

100

107

91

8689"

91

91

94

99

113

113

118

4,329

140

8,590

Apr.

104

96

99

104

109

115

104

102

J02

 100

100

99

100

217

T3T

122

132

124

126

115

106

106

104

104

100

100

102

107

115

137

3,388

113

6,720

May

128

170

131

124

124

122

120

126

126

116

107

102

99

*100

94

88

85 223"

226 159"

165

155

 139

128

120

115

111

115

115

106

96

3,965

128

7,860

June

89

^B

 79

76

72

68

66

65

68

 72

62

58

56

55

54

53

51

50

49

 49

48

48

45

45

42

41

4T

41

41

41

1,710

57.0

3,390

July

41

40

39

39

38

38

38

38

37

37

37

36

37

38

36

35

35

34

3T

34

35

36

35

 35

34

34

34

35

35

35

35

1,124

36.2

2,230

Aug.

35

35

34

35

35

35

36

3?

35

35

35

35

34

34

34

34

34

34

34

33

34

34

34

34

33

33

33

34

34

34

34

1,063

34.3

2,110

Sept.

34

33S3"

34

 34

34

34

34

34

33

33

33

33

33

33

34

34

34

34

34

34

34

34

34

33

34

SB" 89

48

48

1,125

37.5

2,230

Min 38 Mean 115 Ac-ft 83,330

Water year 1956-57: Max 589 Min 33 Mean 71.0 Ac-ft 51,440

Peak discharge (base, 310 cfs). Feb. 24 (8 p.m.) 806 cfs (3.54 ft); May 18 (8 p.m.) 335 cfa 

(2.52 ft).________________ 

* Discharge measurement made on this day.
440 SACRAMENTO RIVER BASIN

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif.

Location. Lat 40°11', long 121011', in NW£ sec. 22, T. 27 N., R. 7 E., on right bank 

400 ft downstream from outlet of tunnel from Lake Almanor to Butt Creek and 2.2 miles 

southwest of Prattville.

Drainage area. 67.3 sq mi.

Records available. October 1936 to September 1957. Published as "below Tunnel No. 1" 

1938-40.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,400 ft (from 

topographic map). Prior to Oct. 5, 1937, at site 200 ft downstream at datum about 

4 ft lower.

Average discharge. 21 years, 749 cfs (542,300 acre-ft per year).

Extremes. 1936-37: Maximum discharge during year, 1,290 cfs Apr. 14, 1937 (gage height, 

7.43 ft, site and datum then in use); minimum daily, 30 cfs Dec. 1, 2.

1937-38: Maximum discharge during year, 2,750 cfs Dec. 10 (gage height, 4.95 ft); 

minimum daily, 62 cfs Feb. 3.

1956-57: Maximum discharge during year, 1,780 cfs Feb. 24 (gage height, 3.91 ft); 

minimum daily, 106 cfs Mar. 23.

1936-57: Maximum discharge, that of Dec. 10, 1937; minimum daily, that of 

Dec. 1, 2, 1936.

Remarks. Records good. Difference in flow at this station and at station above tunnel 

(see preceding page) shows amount of diversion from Lake Almanor to Butt Creek and 

Butt Valley Reservoir plus natural local inflow from 0.3 sq mi of intervening drainage area.

Cooperation. Water-stage-recorder graph and five discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1936 to September 1937

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

995

995

995

995

995

995

995

995

610

33

32

32

32

32 

494

995

995

995

995

995

995

995

995

995

995

995

1.050

1,030

1,030

995

25,250

815

50,080

Nov.

995

995

995

995

995

995

995

995

995

995

995

995

995

995 

995

995

995

995

995

995

995

995

995

995

680

35

32

31

31

31

24,720

824

49,030

Dec.

30

30

32

110

960

960

960

960

960

960

960

960

960

960 

960

96O

960

960

960

960

960

960

960

995

995

715

40

41

36

38

38

21,340

688

42,330

Jan.

34

35

116

960

960

960

960

960

960

960

960

960 

960

960

960

960

960

960

960

960

960

960

960

960

614

41

40

38

38

21,184

683

42,020

Feb.

35

34

34

35

51

31

38

40

36

36

35

36

38

38 

38

41

42

40

41

41

40

40

41

41

41

41

40

40

-

1,064

38.0

2,110

Mar.

40

40

44

44

44

47

52

53

59

62

91

97

87

77 

75

73

73

65

60

56

38

56

56

46

48

48

47

48

50

52

58

1,786

57.6

3,540

Apr.

79

93

85

81

511

,03O

,030

,030

,030

,030

,030

,030

,060

1,210 

908

236

185

178

188

209

248

236

203

215

239

233

*198

170

162

175

14,312

477

28,390

May

198

218

233

597

1,180

1,180

1,140

1,140

1,140

1,100

1,100

1,140

1,180

1,180 

773

224

212

203

178

170

172

172

175

175

170

155

150

638

1,100

1,100

1,100

19,593

632

38,860

June

1,060

1,060

1,060

1,060

1,060

1,030

458

85

85

83

81

75

73

69 

65

125

91

79

75

67

64

*60

60

155

995

1,030

1,030

995

995

995

14,220

474

28,200

July

995

995

995

995

995

995

995

995

995

995

995

995

995

960 

960

960

960

960

995

995

995

995

995

995

995

995

995

995

556

42

41

28,324

914

56,180

Aug.

40

38

38

36

36

36

36

36

528

995

995

995

995

995 

995

995

588

34

32

32

520

960

995

995

995

995

995

995

995

995

995

18,910

610

37,510

Sept.

995

995

995

995

995

995

995

995

995

995

995

995

960

960 

960

960

960

960

960

960

960

960

960

995

995

995

960

960

960

960

29,325

978

58,170

Calendar year 1936: Max - Mln - Mean - Ac-ft -

Water year 1936-37: Max 1,210 Mln 30 Mean 603 Ac-ft 436,400

* Discharge measurement made on this day.

Note. Dally discharge for water year not previously published.
SACRAMENTO RIVER BASIN 441

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif. Continued 

Discharge, in cubic feet per second, water year October 1937 to September 1938

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

39

30

31

Total

Mean

Ac-ft

Oct.

960

995

960

*995

*1,050

1,020

1,020

1,020

1,020

1,010

994

189

994

1,010

1,010

1,020

1,020

1,020

1,020

1,010

1,010

1,010

1,010

1,010

1,020

1,020

1,020

1,020

1,010

1,000

1,000

30,447

982

60,390

Nov.

,010

,000

,000

,000

,010

,010

,020

,020

,020

,030

,040

,030

,020

,040

,030

,060

,120

,050

,100

,450

,180

,090

,220

,140

,100

,100

,090

,090

,080

,070

32,200

1,073

63,870

Dec.

1,070

1,050

1,040

1,040

1,040

1,040

1,040

1,040

1,050

1,540

2.180

954

473

349

275

507

,290

,260

,260

,260

,260

,220

,220

,220

,220

,220

,220

,010

110

110

107

30,675

990

60,840

Jan.

101

110

105

94

92

84

84

278

,220

.260

,260

,260

,260

,260

,260

',260

,260

748

92

90

84

92

88

80

84

82

80

80

78

76

.§i

14,071

454

27,910

Feb.

74

70

62

76

80

86

90

82

74

82

82

94

88

72

72

72

72

298

1,000

1,010

1.020

1,010

1,020

1,020

1,020

1,020

1,020

1,020

-

11,786

421

23,380

Calendar year 1937: Max 2,180 Mln 31

Mar.

1,050

1,070

1,070

1,070

1,070

1,070

1,070

1,070

1,070

1,070

1,070

1,130

1.180

1,150

1,140

1,150

1,140

1,140

722

260

211

185

214

266

220

452

,150

,150

,150

,140

,140

28,040

905

55,620

Apr.

,130

,140

,150

,150

,150

.150

,150

779

239

254

269

278

272

272

288

304

352

478

932

1,590

1.670

1,670

,670

,670

,550

,510

,510

,470

,470

,160

29,677

989

58,860

May

566

522

*444

444

440

424

420

444

468

484

510

549

646

752

768

722

620

*527

448

408

385

382

401

416

420

424

404

389

374

360

545

14,906

481

29,570

June

345

345

349

545

551

514

504

291

625

1.260

,220

,220

,130

,080

,080

,080

,070

,060

,050

,040

,040

* ,040

,040

,040

,040

,020

,020

,020

,020

1,020

25,859

861

51,250

July

1,020

1,010

1,020

1,010

705

101

94

618

158

86

*420

»1.030

1,020

1,020

1,020

593

88

405

1,000

1,000

994

994

994

994

994

994

986

986

*986

804

602

25,744

766

47,100

Aug.

978

978

978

970

978

986

986

986

978

946

962

970

970

962

962

970

978

978

978

970

970

970

962

962

954

954

954

946

954

954

954

29,998

968

59,500

Sept.

954

954

962

970

970

970

970

970

970

970

*970

970

970

970

970

970

970

970

970

970

962

970

962

970

970

962

482

70

66

52T

26,295

876

52,160

Mean 663 Ac-ft 480,100

Water year 1937-38: Max 2,180 Mln 62 Mean 816 Ac-ft 590,400

* Discharge measurement made on this day.

Note. Dally discharge for water year not previously published.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

976

976

976

976

969

969

969

969

969

969

969

969

969

962 9"62

962

962

962

962

969

976

983

990

990

983

a980

a 980

a980

al.OOO

al.100

985

30,311

978

60,120

Nov.

962

"962 969

962

962

962

962

962

962

962

962

962

962

955

955

955

955

955

955

955

955

955

955

955

955

955

955

*955

948

954

28,720

957

56,970

Dec.

934

941

941

941

941

941

941

934

948

948

962

962

955

948

948

941

934

954

941

941

941

954

954

954

934

927

927

927

927

934

954

29,129

940

57,780

Jan.

941

941

941

941

948

948

955

955

941

934

954

927

920

920

920

920

920

927

954

941

948

948

941

934

934

927

927

954

927

927

927

28,982

935

57,480

Feb.

934

948

941

941

941

941

941

941

941

941

941

941

948

948

948

955

948

948

955

955

955

969

1,050

1.460

1,460

958

524

*222

-

26,275

938

52,120

Mar.

187

192

176

181

286

272

235

201

248

184

170

184

152

139

157

150

119

119

117

121

130

115

106

108

115

115

117

605

948

962

990

7,857

255

15,580

Apr.

955

94T

610

126

128

128

119

119

117

*117

115

115

115

227

147

152

144

155

157

126

119

119

117

115

115

110

113

115

121

144

5,959

198

11,780

May

155

173

157

155

132

139

142

147

149

139

128

123

121

121

110

113

110

235

251

625

1,020

665

160

149

142

135

547

969

al.OOO

al.070

al,060

10,282

552

20,590

June

a 1,060

al,050

al,050

*al,040

al,040

a550

a570

al,050

al,020

al,020

1,020

1,020

1,010

1,010

1,000

1,000

1,000

1,000

997

*997

997

997

985

985

985

990

990

985

985

976

29,549

978

58,210

July

976

976

976

976

976

976

976

976

969 9~69

969

969

969

969

969

976

976

976

976

976

983

985

985

*985

985

976

976

969

969

969

969

50,214

975

59,950

Aug.

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

30,039

969

59,580

Sept.

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

969

976

1.030

983

969

969

29,152

972

57,820

Calendar year 1956: Max 1,540 Min 104 Mean 979 Ac-ft 711,000

Water year 1956-57: Max 1,460 Mln 106 Mean 784 Ac-ft 567,800

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, records for station 

above tunnel, and unpublished records of tunnel operation.
442 SACRAMENTO RIVER BASIN

Indian Creek near Crescent Mills, Calif.

Location. Lat 40°05', long 120°56', in S¥£ sec. 25, T. 26 N. , R. 9 E. , on left bank 

0.8 mile upstream from Dixie Creek and 1.5 miles south of town of Crescent Mills.

Drainage area. 746 sq mi.

Records available.--January 1906 to December 1909, September 1911 to March 1918, October 

1930 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 3,500 ft (from topographic map). Prior 

tfo March 1918, staff gage at site 800 ft upstream at different datum.

Average discharge. 36 years (1906-9, 1911-17, 1930-57), 534 cfs (386,600 acre-ft per 

year).

Extremes.--Maximum discharge during year, 10,400 cfs Feb. 25 (gage height, 12.69 ft); minimum, 12 cfs Aug. 26.

1906-9; 1911-18; 1930-57: Maximum discharge, 31,500 cfs Dec. 24, 1955 (gage height, 

17.80 ft), from rating curve extended above 4,800 cfs on basis of slope-area determination of peak flow; minimum, 1.7 cfs, Aug. 25, 1931.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Storage in Round Valley Reservoir since 1865 and Taylor Lake since 1929 (combined 

usable capacity, 5,000 acre-ft). Diversions above station for irrigation of about 

11,800 acres, of which 9,700 acres are in Indian and Genesee Valleys.

Revisions (water years).--WSP 1445: 1906-9.

Rating tables, water year 1956-57 (gage height, In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used Feb. 24, 25)

Oct. 1 to Feb. 25 Feb. 25 to Sept. 30

1.9 

2.4 

3.0 

4.0 

5.0

63

128

235

500

930

6.0 1,560

8.0 3,260

10.0 5,820

12.0 9,800

2.5 

3.0

10

16

33

69

132

220

4.0 

5.0 

7.0 

9.0 

11.0

480

875

2,100

3,930

6,800

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

74

74

~S5 65

67

67

68

79

79

81

109

114

106

99

94

91

87

89

92

96

91

89

96

103

99

110

147

139

122

355

457

3,485

112

6,910

Nov.

255

200

180

171

165

162

162

164

*164

165

165

160

155

149

142

136

130

118

120

110

113

113 

112

113

112

110

109

To§

113 

113

4,290

143

8,510

Dec.

113

110

107

112

130

120

124

94

103

120

144

182

207

215

189

169

155

149

138

136

128

118 

114

119

118

107

106

107

112

113

109

4,068

131

8,070

Jan.

106

107

116

103

109

102

103

113

*95

95

120

138

420

401

310

223

180

158

164

196

187

158 

158

157

152

138

124

146

134

134

133

4,980

161

9,880

Feb.

133

138

125

12F

131

128

133

152

160

164

191

207

*295

422

431

419

425

449

461

491

497

546 

1,470

4,340

*9.050

6,060

4,510

*3,150

-

34,803

1,243

69,030

Calendar year 1956: Max 6,180 Mln 22

Mar.

2,220

1,860

1,650

1,460

1,940

2,570

2,210

1,910

1,970

1,770

1,430

1,500

1,340

1,160

1,280

1,540

1,060

960

902

870

902

798 

756

692 696"

692

692

744

884

950

980

39,968

1,289

79,280

Apr.

975

866

812

826

875

916

821

780

767

785

780

758

712

1,060

985

816

*798

794

758

724

839

1.080

870

816

776

767

780

850

857

25,178

859

49,940

May

880

965

902

794

803

830

844

816

772

724

700

652

620

600

570

545

534

9i5T

2. 250

 2,670

1,610

1,350 

1,280

1,250

1,050

985

950

898

902

945

925

30,003

968

59,510

June

830

749

680

604

545

486

444

417

396

432

575

315

292

250

238

224

214

174

121

153

154

131 

132

119

104

99

95

86

59 

5f

8,955

298

17,760

July

58

79

46

47

44

43

48

39

35

36

34

55

56

54

52

*52

26

26

28

31

29

30 

50

28

19

20

21

20

18 

25

19

1,011

32.6

2,010

Aug.

18

16

12

l¥

15

15

12

14

15

14

16

15

15

14

17

16

16

16

16

16

*16

14 

14

14

14

12

15

12

15

16

18

457

14.7

906

Sept.

16

16

15

15

15

15

18

18

16

16

*22

19

20

20

19

22

26

26

24

24

20

23 

23

22

22

21

24

36

43

41

663

22.1

1,320

Mean 990 Ac-ft 718,800

Water year 1956-57: Max 9,050 Mln 12 Mean 432 Ac-ft 313,100

Peak discharge (base, 1,100 cfs). Feb. 25 (5 p.m.) 10,400 cfs (12.69 ft); Mar. 6 (12 m.) 2,440 cfs 

(7.42 ft); Apr. 14 (5 p.m.) 1,210 cfs (5.65 ft); Apr. 22 (12 m.) 1,180 cfs (5.60 ft); May 19 

(2 p.m.) 2,350 cfs (7.29 ft). _______________________________________________________ 

* Discharge measurement made on this day. 

Note. No gage-height record Aug. 4-20; discharge estimated on basis of recorded range In stage,

observer's readings, and records for Spanish Creek above Blackhawk Creek at Keddle.
SACRAMENTO RIVER BASIN 443

Spanish Creek above Blackhawk Creek, at Keddie, Calif.

Location. Lat 40°00'05", long 120°57'20", in NEtr sec. 27, T. 25 N., R. 9 E., on right 

bank 200 ft upstream from Blackhawk Creek and 0.9 mile southeast of Keddie.

Drainage area.--184 sq mi.

Records available.--October 1933 to September 1957. Prior to October 1953, published as 

"at Keddie. 1 ' October 1911 to September 1933, at site 1.2 miles downstream; records not 

equivalent because of inflow.

Sage. Water-stage recorder. Altitude of gage is 3,250 ft (from topographic map). 

Average discharge. 24 years, 262 cfs (189,700 acre-ft per year).

Extremes.--Maximum discharge during year, 7,100 cfs Feb. 24 (gage height, 9.21 ft), from 

rating curve extended above 4,400 cfs as explained below; minimum, 21 cfs Aug. 25.

1933-57: Maximum discharge, 13,100 cfs Dec. 23, 1955 (gage height, 12.47 ft), from 

rating curve extended above 4,400 cfs on basis of slope-area determination of peak 

flow; minimum, 3.8 cfs Aug. 12, 1934.

Remarks.--Records good. Flow regulated by five small reservoirs having a combined capacity of 800 acre-ft. Approximately 4,600 acres irrigated above station (from information furnished by U. S. Forest Service). City of Quincy diverts about 450 acre-ft 

annually for municipal supply.

Revisions (water years).--WSP 1041: 1938(M).

Rating tables, water year 1956-57 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Aug. 13 to Sept. 3O)

Oct. 31 to Sept. 30

1.5 

1.9 

2.4 

2.9 

3.5

43

71

143

278

535

0.8 

1.0 

1.2 

1.6 

2.0 

2.4 129

2.8 

3.2 

4.0 

5.0 

6.0 

8.0

225

380

750

1,500

2,560

5,ISO

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24 

25

26

27

28

39

30

31

Total

Mean

Ac-ft

Oct.

46

46

46

48

49

47

44

56

56

55

75

70

63

66

61

59

58

58

58 

56

56

57

70

78 

68

75

94

84

86

253~ 394 

2,432

78.5

4,820

Nov.

129

107

93

87

84

85

83

82

*81

82

80

77

75

73

72

71

7O

70

68 

66

66

66

66

66 

63

56

59

63

65

63

2,264

75.5

4,49O

Dec.

65

62

62

67

36

76

72

59

55

73

85

~9T 102

97

86

81

77

75

73 

71

71

65

66

64 

65

61

60

61

62

66

62

2,234

72.1

4,430

Jan.

61

61

66

60

62

60

63

66

60

*54

73

113

'235" 511

169

140

118

102

99 

121

119

98

93

91

87

76

69

83

66

72

76

3,22&

loi

6,400

Feb.

77

80

70

69

72

72

75

116

113

99

*136

119

162

201

213

213

192

195

19O 

195

225

296

1,590

4,960 

3,780

2,360

1,610

*918

-

18,398

657

36,490

Mar.

67O

615

536

528

924

804

660

555

732

545

476

702

545

46O

504

524

44O

396

364 

340

348

304

272

250 

242

236

225

235

284

312

316

14,345

463

28,450

Apr.

300

260

253

246

256

260

242

228

225

225

225

222

210

554 *372"

312

364

364

324

320

336

348

328

304 

276

256

253

253

268

268

8,682

289

17,220

May

272

412

328

288

288

292

288

280

272

250

232

219

213

213

198

190

T9?

883

1,150

*88E

655

545

484

428 

388

368

352

348

344

336

308

11,878

383

23,560

June

26"8~ 292

246

225

21O

190

179

167

158

167

147

138

124

115

115

95

84

83

88 

78

79

77

78

68 

65

62

56

52

42

?S

3,790

126

7.52O

July

56

52

51

51

51

49

51

50

47

44

42

40

45

46

46

46

*42

45

4O 

34

32

37

34

35 

36

38

4O

37

36

36

36

1,321

42.6

2,620

Aug.

35

37

29

28

29

28

27

28

28

27

28

27

26

26

27

26

26

25

24 

23

24

26

26

25 

23

22

22

23

25

27

26

819

26.4

1,620

Sept.

26

26

25

23

22

22

25

24

*24

25

23

25

25

25

26

26

27

30

30 

29

29

28

25

25 

29

28

42

82

54

58.

908

30.3

1,800

Calendar year 1956: Max 4,140 Mln 27 Mean 371 Ac-ft 267,900

Water year 1956-57: Max 4,960 Mln 22 Mean 193 Ac-ft 139,400

Peak discharge (base, 85O cfs). Feb. 24 (6 p.m.) 7,100 cfs (9.21 ft); Feb. 26 (6 p.m.) 3.26O cfs 

(6.58 ft); Mar. 5 (7 p.m.) 986 cfs (4.38 ft)j Mar. 9 (6:30 a.m.) 864 cfs (4.19 ft); Mar. 12 (7 a.m) 

906 cfs (4.26 ft); Apr. 14 (7;5O a.m.) 894 efs (4.24 ft); May 18 (8 p.m.) 1,T80 cfs (5.28 ft).

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN

East Branch of North Fork Feather River, near Rich Bar, Calif.

Location (revised) . Lat 40°00'40", long 121°13 I 00", in SW^NE^ sec. 20, T. 25 N., R. 7 E., 

on left bank 0.5 mile upstream from mouth and 1.3 miles west of Rich Bar.

Drainage area. 1.035 sq mi.

Records available . October 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 2,300 ft (from topographic map). Prior 

Fo Nov. 29, 1950, at site 30 ft downstream at same datum.

Average discharge. 7 years, 1,226 cfs (887,600 acre-ft per year).

Extremes. Maximum discharge during year, 15,700 cfs Feb. 25 (gage height, 12.00 ft); 

minimum, 60 cfs Aug. 27.

1950-57: Maximum discharge, 48,000 cfs Dec. 23, 1955 (gage height, 16.52 ft), from 

rating curve extended above 15,000 cfs on basis of study of upstream and downstream 

peak discharges; minimum, 39 cfs Sept. 6, 7, 1955.

Remarks. Records good. No storage or diversion between stations on Indian and Spanish 

Creeks and station near Rich Bar.

Revisions (water years). WSP 1245: 1951(M).

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 25 Feb. 25 to Sept. 30

7.0

137

185

340

560

810

1,100

7.5 1,620

8.0 2,360

9.0 4,200

1O.O 6,8OO

12.0 15,700

4.4 

4.6 

5.0 

5.5 

6.0 

6.5

52

84

173

329

545

860

7.0

8.0

9.0

10.0

11.0

1,300

2,500

4,400

7,150

10,900

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

155 

152

T5Z

157

153

162

162

175

182

188

213

242

223

210

210

200

191

188

191

194

197

188

200

227

216

231

238

295

261

658

1.010

7,427

240

14,730

Nov.

584 

423

370

340

326

*322

322

322

322

326

326

318

308

E95

287

274

270

257

249

249

231

231

231

231

231

223

~SZS 220

220

227

,

8,760

292

17,380

Dec.

231 

231

227

223

274

266

246

216

191

246

270

355

385

370" 390

326

304

287

278

266

261

246

231

238

234

220

210

213

220

231

223

8,109

262

16,080

Jan.

213 

213

223

213

213

210

207

223

*220

185

234

318

987

7J59

662

512

420

370

340

415

440

360

336

326

318

282

220

257

216

197

220

10,409

336

20,650

Feb.

200

188

185

180

169

159

TST

200

253

231

*308

415

506

734

796

782

747

768

775

782

845

922

2,910

9,910

*14,500

9,670

7,320

*4,920

-

59,342

2,119

117,700

Mar.

3,410 

2,840

2,530

2,290

3,080

5,560

3,250

2,770

2,920

2,630

2,160

2,430

2,180

1,880

1,950

2,110

1,770

1,590

1,470

1,390

1,420

1,300

1,180

1,110

1,070

1,070

1.060

1,100

1,270

1,450

1,420

61,660

1,989

122,300

Apr.

1,460 

1,300

1,210

1,210

1,260

1,320

1,240

1,150

1,130

1,130

1,130

1,100

1.060

1.760

+1,610

1,320

1,320

1,360

1,260

1,210

1,300

1,530

1,470

1,360

1,250

1,180

1,160

1,170

1,230

1 , 280

38,470

1,282

76,300

May

1,300 

1,520

1,430

1,260

1,240

1,260

1,270

'1,240

1,200

1,110

1,060

1,000

948

940

900

860

846

1,710"

5.790

*3,4lO

2,710

2,250

2,020

1,920

1,710

1,600

1,520

1,460

1,450

1,460

1,450

47,894

1,545

95,000

June

1.500 

1,190

1,070

980

892

804

734

690

654

684

660

550

525

468

446

418

381

358

301

287

291

270

274

267

242

233

215

206

176

150

15,716

524

31,170

July

158 

163

TB75

146

143

138

138

141

126

120

118

111

116

120

120

*116

114

109

107

105

101

97

99

99

97

84

34

97

90

90

90

3,597

116

7,130

Aug.

88 SB"

81

76

72

74

76

74

74

76

74

74

70

67

66

66

70

70

70

70

70

69

70

70

69

64

60

SI

62

69

76

2,217

71.5

4,400

Sept.

76 

74

70

70

66

 £5 64

70

*70

70

74

74

79

81

81

82

84

92

97

95

94

92

92

88

90

99

131

168

TS3

158

2,710

90.3

5,380

Calendar year 1956: Max 10.30O Min 105 Mean 1,573 Ac-ft 1,142,000

Water year 1956-57: Max 14,300 Min 60 Mean 730 Ac-ft 528,200

Peak discharge (base. 2,000 cfs).--Feb. 25 (8 a.m.) 15.700 cfs (12.00 ft); Mar. 6 (2 to 10 a.m.)

3,620 cfs (8.66 ft); Apr. 14 (12:30 p.m.) 2,150 cfs (?.75 ft)) May 19 (2 a.m.) 3,95O cfs (8.82 ft).

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 445

Bucks Lake near Bucks Lodge, Calif.

Location. --La t 39°53'45", long 121°12'10", in NW£ sec. 33, T. 24 N., R. 7 E., in intake 

tower Ho. 2 upstream from dam on Bucks Creek, 2 miles northwest of Bucks Lodge and 

15 miles west of Quincy.

Drainage area. --28 sq mi, approximately.

Records available .--1927-28 (summary of yearly contents in WSP 881), October 1928 to 

 September 1957. Prior to October 1954, published as Bucks Creek Reservoir near Bucks 

Ranch .

Gage. Water-stage recorder. 

iver Power Co.).

Datum of gage is at mean sea level (levels by Feather

Extremes . --Maximum contents during year, 89,800 acre-ft July 5 (elevation, 5,148.2 ft); 

minimum, 35,400 acre-ft Feb. 13-15; minimum elevation, 5,112.3 ft Feb. 14.

1928-57: Maximum contents, 105,800 acre-ft June 23, 1938 (elevation, 5,157.1 ft); 

minimum, 12,330 acre-ft Feb. 27, 1929 (elevation, 5,090.7 ft).

Remarks . Reservoir is formed by concrete-faced rock-fill dam completed in 1927; storage 

 Began in May 1927. Capacity, 101,400 acre-ft between elevations 5,064.75 (sill of 

outlet gate) and 5,154.85 ft (spillway crest) above mean sea level. Released water 

flows down Bucks Creek to Lower Bucks Lake, where it enters tunnel that discharges 

into Grizzly Creek, thence to Bucks Creek powerhouse. Records show total contents 

at 12 p.m., of which 274 acre-ft are not available for release.

Cooperation . --Records of contents furnished by pacific Gas & Electric Co. in connecti-on 

with a Federal Power Commission project .

Capacity table, water year 1956-57 (elevation, In feet, and total contents, In acre-feet)

5.112

5.113

5,116

5,119

5,122

35,000

36,200

40,100

44,100

48,300

5,125

5,128

5,131

5,134

5,137

52,500

57,000

61,500

66,200

71,000

5,140

5,143

5,146

5,149

75,900

80,900

86,000

91,200

Total contents, In thousands of acre-feet, at 12 p.m.. water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

57.7

57.2

56.8

56.3

55.8

55.4

55.0

54.6

54.1

53.7

53.3

53.0

52.1

52.1

51.7

51.2

50.7

50.3

50.0

49.5

49.1

48.7

48.3

47.9

47.6

47.3

47.0

46.6

46.3

46.6

46.4

5,120.7

-11,700

Hov.

46.4

4672

46.0

45.9

45.6

45.2

44.8

44.4

44.2

43.8

43.4

43.8

42.7

42.3

41.9

41.6

41.0

40.8

40.3

39.8

39.4

40.4

38.8

38.4

38.0

37.6

37.3

36.7

36.4

36.2

5,113.0

-10,200

Dec.

36.1

36.1

36.1

36.2

36.4

36.5

36.5

36.4

36.4

36.5

36.6

36.7

36.7

36.9

36.9

37.0

37.0

37.1

37.1

37.1

37.2

37.3

37.3

37.3

37.3

37.4

37.4

37.4

37.4

37.5

37.5

5,114.0

+1,300

Jan.

37.5

37.6

37.6

37.6

37.7

37.7

37.8

37.9

37.9

38.0

38.1

38.2

38.3

38.3

38.3

38.3

38.2

38.0

38.3

38.4

38.5

38.5

38.5

38.5

38.4

38.3

37.8

37.6

37.5

37.3

37.2

5,113.8

-300

Feb.

37.1

37.0

36.8

36.7

36.6

36.4

36.2

36.2

36.0

35.9

35.7

35.5

35.4

35.4

35.4

35.5

35.6

35.7

35.8

35.9

36.1

36.3

37.4

40.7

42.0

43.3

44.4

45.0

-

_______

5,119.7

+7,800

Mar.

45.2

4579

46.3

46.9

47.7

48.3

48.8

49.3

49.8

50.2

50.7

51.2

51.5

51.8

52.1

52.3

52.6

52.6

53.0

53.2

53.6

53.7

53.9

54.1

54.3

54.5

54.8

55.0

55.4

55.7

56.0

5,127.4

+11,000

Apr.

56.3

5674

56.7

57.0

57.4

57.7

57.9

58.2

59.8

58.8

59.1

59.4

60.0

60.8

61.2

61.5

62.1

62.5

62.8

63.1

63.4

63.7

64.0

64.3

64.6

64.9

65.2

65.6

66.1

66.5

5,134.2

+10,500

May

67.0

68.1

68.6

69.0

69.5

69.9

70.5

71.0

71.4

71.8

72.1

72.6

72.9

73.3

73.6

74.1

76.7

77.7

78.6

79.2

79.8

80.2

80.5

81.2

81.7

82.2

82.8

83.3

83.8

84.2

5,145.0

+1 7 , 700

June

84.7

8570

85.4

85.7

86.0

86.2

86.4

86.7

86.9

87.1

87.4

87.6

87.9

88.0

88.2

88.3

88.4

88.5

88.6

88.7

88.9

88.9

89.0

89.1

89.2

89.3

89.3

89.4

89.4

89.5

5,148.0

+5,300

July

89.6

89.6

89.6

89.7

89.8

89.7

89.7

89.7

89.5

89.1

88.9

88.8

88.9

88.9

88.6

88.1

87.5

87.0

86.6

86.5

86.3

86.2

85.5

84.8

84.4

83.9

83.4

83.0

82.8

82.4

82.4

5,143.9

-7,100

Aug.

81.9

81.4

81.1

80.3

80.0

79.5

79.0

78.5

78.0

77.6

77.0

76.6

76.1

75.6

74.9

74.4

73.9

73.4

73.0

72.5

72.0

71.5

71.0

70.5

70.2

69.5

68.9

68.4

67.8

67.6

67.1

5,134.6

-15,300

Sept.

66.5

66.0

65.6

65.1

64.7

64.3

63.7

63.2

62.8

62.3

61.8

62.9

60.9

60.2

60.0

59.5

59.1

58.6

58.5

58.2

57.9

57.7

57.4

57.3

57.0

56.7

55.6

55.5

55.3

55.0

5,126.7

-12,100

Calendar year 1956.................... * -23,700

Water year 1956-57.................... t -3,100

t Elevation, In feet, at end of month. 

* Change In contents, In acre-feet.
446 SACRAMENTO RIVER BASIN

North Fork Feather River at Big Bar, Calif.

Location. Lat 39°48', long 121°27' , in NE£ sec. 6, T. 22 N., R. 5 E., on left bank

between railroad and highway bridges, 0.5 mile downstream from Flea Valley Creek and

Pulga, 1 mile (revised) downstream from Big Bar, and 6 miles upstream from intake of

powerplant at Big Bend. 

Drainage area. 1,945 sq mi. 

Records available. February 1911 to August 1930, October 1931 to September 1937, October 1939 to September 1957. 

Gage. Water-stage recorder. Altitude of gage is 1,320 ft (from topographic map). Prior

to Oct. 1, 1937, at site 0.8 mile upstream at different datum. 

Average discharge.--41 years (1911-12, 1913-20, 1921-30, 1931-37, 1939-57), 2,840 cfs

(2,056,000 acre-ft per year). 

Extremes. Maximum discharge during year, 32,500 cfs Feb. 25 (gage height, 19.50 ft);

minimum daily, 926 cfs Jan. 5.

1911-37, 1939-57: Maximum discharge, 72,400 cfs Dec. 23, 1955 (gage height,

30.60 ft), from rating curve extended above 34,000 cfs by logarithmic plotting; minimum daily, 235 cfs Oct. 31, 1932. 

Remarks. Records good. Flow regulated by Lake Almanor (see p. 436), Bucks Lake (see

p. 445), Butt Valley Reservoir, Cresta and Rock Creek powerplants, and diversions. 

Cooperation. Water-stage-recorder graph and seven discharge measurements furnished by

Pacific Gas & Electric Co. in connection with a Federal Power Commission project. 

Revisions (water years).--WSP 931: 1938(M), 1940. Revised figures of discharge, in

cubic feet per second, for the water year 1935, superseding those published in

WSP 791, are given herewith:

Date

1935 

Apr. 3 

4 

5 

6 

7 

8

Discharge

8,600 

13,000 

12,000 

10,700 

17/700 

28,500

Date

1935-Con. 

Apr. 9 

10

11 

12 

13 

14

Discharge

18,000 

12,700 

10,200 

10.OOO 

9,880 

10,400

Month

April 1935 

Water ye 

Calendar

ar 1934-3 

year 193

Date

1935-Con. 

Apr. 15 

16

17 

18 

19 

20

Cfs-days

365,310 

1,101,514 

1,122,370

Discharge

16,100 

18,000 

15,500 

12,100 

12,400 

13,100

Maximum

28,500 

28,500 

28,500

Date

1935-Con. 

Apr. 21 

22 

23 

24 

25 

26

Discharge

13,800 

12,900 

11,200 

10,000 

10,000

10,000

Minimum

4,150 

795 

917

Mean

12,180 

3,018 

3,075

Date

1935-Con. 

Apr. 27 

28 

29 

30

Discharge

10,000 

9,390 

10,400 

9,870

Runoff in 

acre-feet

724,600 

2,185,000 

2,226,000

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

2.4 

3.0 

4.0 

6.0

890

1,200

1,840

3,730

10.0

13.0

16.0

9,800

15,500

22,700

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

2,260

2,280

2,300

2,320

2,340

2,380

2,370

2,340

2,380

2,340

2,370

2,390

2,380

2,320

2.250

*2,26O

2,320

2,380

2,410

2,410

2,390

2,380

2,360

2,360

2,380

2,410

2,390

2,400

2,400

5.900

3,500

75,670

2,441

150,100

Nov.

2,560

2,710

2,680

2,470

2,430

2,890

3,010

3,010

2,970

2,920

2,960

5.040

3,040

3,020

2,760

2,600

2,430

2,410

2,410

2,390

2,420

2,460

2,380

2,200

1,960

1,810

1.790

1,970

1,930

1,910

75,540

2,518

149,800

Dec.

1,920

1,420

1,980

1,800

1,720

2.150

1,680

1,680

1.310

1.4OO

1,670

1,690

1,670

1,600

1,630

1,630

1,600

1,670

2,020

1,940

*1,750

1,630

1,390

1,580

1,440

1,540

1,480

1,370

1,650

1,510'

1,670

51,170

1,651

101,500

Jan.

1,740

1,630

1;680

1,620

926

1,260

1,370

1,780

2,010

1,670

1,700

1,990

2.550

2,060

1,900

1,990

2,020

1,980

1,940

1,920

1,940

*1,950

1,930

1,800

1,850

1,810

1,760

1,720

1,730

1.8OO

1,760

55,746

1,798

110,600

Feb.

1,860

1,950

1,650

1,560

1,560

1,670

1,660

1,860

1,720

1.540

1,750

1,680

1,820

1,950

2,120

2,080

1,560

2,580

2,380

2,420

2,400

2,320

6,780

22.500

*22,300

17,900

13,200

8,850

-

_______

153,180

4,756

264,200

Mar.

6,600

5,610

4,980

5,030

7,250

7.780

6,600

5,940

6,460

5,540

4,720

5,450

4,640

4,110

4,110

4,110

4,040

2,830

3,340

2,500

3,030

2,700

2,500

2,390

2,340

2,370

2.520

2,550

2,800

2,980

2,760

130,160

4,199

258,200

Apr.

2,320

2.5OO

2,310

2,320

2,520

2,300

2,630

*2,310

2.290

2,360

2,330

2,350

2,300

5.700

5,610

2,440

3,020

2,900

2,320

2,520

2,300

3,050

2,750

2,680

2,320

2,300

2,330

2,290

2,430

3,500

76,700

2,557

152/100

May

3,460

4,130

4,020

3,920

3,900

3,850

5,800

3,900

3.8OO

*2,450

2,360

2,360

2,320

2,370

2,220

1,850

1,940

8,120

8.460

7,570

6,750

5,650

4,360

4,130

4,040

5,520

5,200

5,160

2,850

2,890

2,750

119,900

5,868

257,800

June

3,060

2,510

2,370

2,320

2,290

2,350

2,320

2,340

2,380

2,710

2,890

2,620

2,380

2,170

2,110

1,790

*2,070

2,110

1,890

1,520

1,980

1,760

1,650

l.dOO

1,890

1,570

1,580

1,590

1,560

1,540

-------

63,120

2,104

125,200

July

1,550

1,600

1,600

1,670

1,750

1,650

1,630

1,630

1.550

1,720

1,670

1,550

1,610

1,590

1,720

1,780

1,690

*1,680

1,700

1,790

1,790

1,810

1,820

1,820

1,760

1,770

1,700

1,670

1,720

1,700

1,700

52,370

1,689

1O3.9OO

Aug.

1,650

1,620

1,740

1,640

1,720

1,670

1,670

1,740

1.800

1,790

1,770

1,680

1,640

1,670

1,650

1,690

1,680

1,630

1,670

1,670

1,670

1,640

1,610

1,570

1,600

1,610

1,680

1,600

1.560

1,640

1,610

51,580

1,664

102,300

Sept.

1.590

1,590

1,680

1,730

1,670

1,700

1,840

2,080

1,930

1,690

1,760

2,000

1,970

2,290

2,300

2,350

2.590

2,320

2,290

2,260

2,220

2,210

2,140

1,970

1,900

1,740

2,040

1,920

1,900

2,050

59,500

1,983

118,000

Calendar year 1956: Max 17,200 Min 1,31O Mean 4,453 Ac-ft 3,232,000

Water year 1956-57: Max 22,500 Min 926 Mean 2,588 Ac-ft 1,874,OOO

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 447

West Branch Feather River near Yankee Hill, Calif.

Location. Lat 39°41'55", long 121 "33'38", in SE^SE^ sec. 6, T. 21 N., R. 4 E., on right 

bank 800 ft upstream from highway bridge, 1.7 miles downstream from Concow Creek, 

2.1 miles west of Yankee Hill, and 4.9 miles southeast of Paradise.

Drainage area.--145 sq mi.

Records available. September 1930 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 650 ft (from topographic map).

Average discharge.--27 years, 350 cfs (253,400 acre-ft per year).

Extremes. Maximum discharge during year, 10,100 cfs Feb. 24 (gage height, 19.32 ft); minimum, 3.7 cfs July 13.

1930-57: Maximum discharge, 21,400 cfs Dec. 11, 1937 (gage height, 30.3 ft), from 

rating curve extended above 15,000 cfs; minimum, 0.3 cfs Jan. 8, 1937 (gage height, 

1.69 ft).

Remarks. Records good. Dewey, Miners, and Hendricks Canals divert from headwaters of 

West Branch Feather River into Butte Creek basin (see p. 425) for power development 

at DeSabla and Centerville plants of Pacific Gas & Electric Co. Upper-Miocene Canal 

diverts from West Branch Feather River, and Spring Valley ditch diverts from Concow 

Creek above station for power development at Lime Saddle and Coal Canyon plants of 

Pacific Gas & Electric Co. and for irrigation below powerplants. Flow regulated by 

Round Valley Reservoir (capacity, 1,285 acre-ft), Philbrook Reservoir (capacity, 

5,010 acre-ft), and Lake Wilenor (capacity, 8,210 acre-ft).

Rating tables, water year 1956-57 (gage height; In feet, and discharge, in cubic feet per second) 

(Shifting-control method used Apr. 14 to May 18)

2.9

3.0

3.1

3.2 

3.5 

4.0

Oct. 1 to Feb. 24 Feb. 25 to May 18 May 18 to Sept. 30

3.5 

6.5

5.O 

6.0 

8.0

11.0

14.0

17.0

260 

485 

1,240 

3,000 

5,340 

9,OOO

4.7

5.0

6.0

8.0

11.0

14.0

230

295 570'

1,350

3,000

5,340

2.7

2.8

2.9

3.0 

3.2 

3.5

2.5

4.9

9.1

15

28

57

4.0 

5.0 

6.0 

7.0 

9.0 

12.0

135

375

700

1,080

2,050

3,980

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

1O

11

12

13

14 

15

16

17

18 

19

20

21

22

23

24 

25

26

27

28

29

30

31

Total

Mean

Ae-ft

Oct.

4.1

4!l

4.1

4.1

4.1

4.4

4.7

5.6

5.6

8.3

20

12

7.0 

5.6

5.3

5.0

5.0 

5.O

5.0

4.7

4.7

4.7

9.2 

16

9.2

53

25

1O

546

271

1,076.6

34.7

2,140

Nov.

70 

36

18

12

11

10

7.8

8.3

12

16

6.5

7.4

6.2

9.2 

6.2

5.6

5.3

T72 

5.9

7.0

*9.2

5.6

5.6

5.6 

6.2

6.5

6.5

6.5

6.5

&.5

331.3

11. 0

657

Dec.

6.5 

6.5

6.5

7.4

23

18

12

8.3

9.6

7.8

11

16

24

28 

24

15

9.6

8.3 

7.8

7.0

6.5

6.2

6.2

6.5 

6.5

6.5

6.5

6.2

5.6

5.3

.5,0

323.3

10.4

641

Jan.

477-

5.0

5.6

5.6

5.6

5.9

5.9

6.2

6.2

7.0

98

475

204 

102

60

41

31 

27

160

84

*42

31

26 

25

23

16

21

18

18

13

1,577.4

50.9

3,130

Feb.

12 

15

16

12

12

11

12

35

33

55

57

7O

87

118 

130

126

83

87 

7O

59

169

418

2,240

7.630 

4,290

4,080

2,24O

*1,390

-

23,557

841

46,72O

Mar.

1,010 

984

876

1,220

2,200

1,810

1,290

1,050

1,340

984

812

1,120

868

711 

744

868

669

585 

504

438

432

36O

325

300 

295

282

280

285

338

395

360

23,735

766

47,080

Apr.

332 

*278

278

310

322

342

288

266

260

278

266

242

254

~567 1.120 

412

561

660 

576

435

382

477

423

40O 

350

302

272

282

315

*335

11,585

386

22,980

May

338 

616

418

370

380

372

335

325

385

370

305

275

246

302 

288

242

230

4.920 

3,330

2,220

1,62O

1,270

1.01O

888 

819

732

700

644

595

553

516

25,614

826

50,800

June

480 

44T

387

338

302

278

255

240

220

238

*185

153

137

114 

104

86

70

57 

53

52

48

38

30

27 

24

22

21

20

19

16

4,455

148

8,840

July

15 

13

12

11

9.1

6.9

5.7

5.3

5.3

4.9

4.0

4.O

3.7

T7o

4.0

*4.3

4.6

4.6 

4.9

5.3

5.3

5.3

5.7

8.1 

6.5

6.5

6.9

4.9

4.9

4.9

4.9

195.5

6.31

388

Aug.

4.9 

4.6

4.6

4.3

773

4.9

5.3

479

4.9

4.9

4.6

4.3

4.6

4.9 

5.3

5.3

4.6

4.9 

4.9

4.9

4.9

4.9

4.9

5.3 

4.9

4.9

4.9

4.9

5.3

5.3

4.9

151 .0

4.87

300

Sept.

4.9 

4.6

4.6

4.6

4.6

4.6

4.6

4.9

4.9

4.6

4.6

4.6

4.6

4.9 

4.9

4.9

4.9

5.3 

5.3

4.6

4.3

4.3

4.3

4.0 

473

4.6

292

rss

24

11

608.3

20.3

1,210

Calendar year 1956: Max 8,270 Mln 3.1 Mean 464 Ac-ft 336,900

Water year 1956-57: Max 7,630 Mln 3.7 Mean 255 Ac-ft 184,900

Peak discharge (base, 1,700 cfs). Feb. 24 (3 p.m.) 10,100 cfs (19.32 ft); Mar. 5 (4 a.m. 

2.600 efs (10.34 ft); Apr. 14 (8 a.m.) 2,040 efs (9.58 ft); May 18 (2:30 p.m.) 8,710 ef 

* Discharge measurement made on this day.

 s (17.79 ft).
448 SACRAMENTO RIVER BASIN

Feather River near Oroville, Calif.

Location. Lat 39°32'00", long 121°28'35", in NE£ sec. 2, T. 19 N., R. 4 E., on left bank 

75 ft upstream from bridge on Feather River Highway, 1.9 miles downstream from North 

Fork, and 4 miles northeast of Oroville business district.

Drainage area. 3,611 sq mi.

Records available.--January 1902 to September 1957. Prior to October 1934, published as 

"at Oroville."

Gage. Water-stage recorder. Datum of gage is 182.02 ft above mean sea level, datum of 

1929. Jan. 1, 1902, to Dec. 15, 1912, staff gages at several sites about 5.2 miles 

downstream at various daturas. Dec. 16, 1912, to Sept. 30, 1934, water-stage recorder 

at site 5.2 miles downstream at datum 139.53 ft above mean sea level, datum of 1929.

Average discharge. 55 years, 5,862 cfs (4,244,000 acre-ft per year).

Extremes. Maximum discharge during year, 83,100 cfs Feb. 24 (gage height, 52.91 ft); minimum, 1,180 cfs Jan. 2 (gage height, 6.19 ft).

1902-57: Maximum discharge observed, 230,000 cfs Mar. 19, 1907 (gage height, 

28.2 ft, reading on U. S. Weather Bureau staff gage at bridge, equivalent to 39.3 ft at 

staff gage at cable 1,000 ft upstream; probably had been higher during night); minimum, 

300 cfs (estimated), Nov. 9, 1931 (gage height, -1.7 ft, site and datum then in use).

Remarks. Records good. Flow partly regulated by powerplants and Lake Almanor (see p. 436), 

Bucks Lake (see p. 445), Butt Valley Reservoir, and smaller reservoirs. Records of 

chemical analyses, water temperatures, and suspended sediment loads for the water year 

1957 are given in WSP 1523.

Revisions (water years) , WSP 843: 1907(M). 1909(M), 1914-15(M), 1917(M), 1927-28(M). 

WSP 881:1913-28 (yearly summaries only). Revised figures of discharge, in cubic feet 

per second, for the water years 1906-8, superseding those published in WSP 298, are 

given herewith:

Date

1906

July 15-16

17-18

19-21

22-26

27-31

Aug. 1-4

5-25

26-31

Sept.l- 4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

Discharge

a4,5OO

a4,000

a3 , 500

a3,000

a2 , 5OO

32,200

a2 , 2OO

a2,200

al,760

1,76O

1,760

1,760

1,760

1,720

1,720

1,720

1,720

1,720

1,760

1,760

1,760

1,760

1,760

1,760

1,720

1,680

1,680

Date

19O6-Con.

Sept. 23

24

25

26

27

28

29

30

Oct. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

IS

16

17

18

19

Discharge

1,680

1,680

1,720

1,680

1,680

1,68O

1,680

1,680

1,680

1.68O

1,680

1,68O

1,680

1,680

1,680

1,680

1,680

1,680

1,680

1,680

1,680

1,680

1,680

1,680

1,680

1,680

1,680

Date

1906-Con.

Oct. 20

21

22

23

24

25

26

27

28

29

30

31

Nov. I

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Discharge

1,680

1,680

1,680

1,680

1,680

1,680

1,680

1.68O

1,680

1,680

1,680

1,680

1,680

1,680

2,280

7,560

5,360

3,330

2,280

1,840

1,840

1,840

1,840

1,840

1,840

1,840

1,840

Date

1906-Con.

Nov. 16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Dec. 1

2

3

4

5

6

7

1907

Dec. 15

16

17

Discharge

1,84O

1,840

1,840

1,840

1,84O

1,840

1,840

1,840

1,840

1,840

1,800

1,800

1,800

1,800

1,760

1,760

1,760

1,760

1,760

1,760

1,760

1,760

3,150

3,150

2,870

Date

1907 -Con.

Dec. 18

19

2O

21

22

23

24

25

26

27

28

29

3O

31

1908

Jan. 1

2

3

4

5

6

7

8

9

10

Discharge

2,730

2,590

2,730

2,73O

2,590

2,590

2,590

2,590

3,600

14,200

9,60O

6,500

6,OOO

7,700

8,300

8,600

4,800

5,000

4,400

4,000

3,800

3.60O

4,000

4,000

Month

September ..................................

Water year 1905-6 ........................

Water year 1906-7. . ......................

Calendar year 1907 .......................

Calendar year 1908 .......................

Maximum

96,300

187,000

187,000

16,300

Minimum

_

-

1,650

1,650

1,250

Mean

1,730

9,180

12,900

12,600

4,487

Runoff In 

acre-feet

103,000

6,650,000

131,000

9,310,000

9,140,000

3,260,000

a Average for period indicated.
SACRAMENTO RIVER BASIN 449

Feather River near Oroville, Calif.--Continued

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

7.0

10.0

15.0

20.0

25.0

1,530

3,230

6,450

10,700

15,600

30.0

35.0

40.0

45.0

50.0

21,900

29,600

39,300

51,600

70,600

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19 

20

21

22

23

24

25

26

27 

28

29

30 

31

Total

Mean

Ac-rt

Oct.

2.730 

2,760 

2,790

2,800

2,850

2,850

2,820

2,800

2,880

2,860

3,060

3,210

3,010

2,870

2,780

2,790 

2,860

2,920

2,940 

2,920

2,910

2,880

2,970

3,060

3,020

3,150

3,510 

3,320

3,150

6,140 

6,675

97,680

3,151

193,700

Nov.

4,090 

3,660 

3,670

3,460

3,250

3,510

3,860

3,850

3,820

3,750

3,750

3,810

3,790

3,780

3,590

3,380 

3,180

3,090

3,090 

3,060

3,040

3,030

3,000

2,820

2,350

2,180

2.150 

Z, 260

2,320

2,340

96,910

3,230

192,200

Dec.

2,320 

1.710 

2,440

2,310

2,460

2,440

2,160

2,140

1,740

1,900

2,200

2,320

2,370

2,370

2,350

2,290 

2,310

2,370

2.700 

2,670

2,370

2,250

1,960

2,020

1,910

2,090

1,980 

1,820

2,010

1,960 

2,250

68,190

2,200

135,300

Jan.

2,170 

1,950 

2,200

2,050

1.550

1,570

1,760

*2,130

2,550

2,120

2,050

5,050

5.290

3] 980

3,340

5,050 

2,920

2,850

2,810 

5,650

5,150

2,860

2,770

2,570

2,610

2,650

2,350 

2,290

2,340

2,350 

2,410

81,250

2,621

161,200

Feb.

2,400 

2,610 

2,340

2,150

2^020

2,060

2,140

2,670

2,620

2,150

2,450

2,520

*2,910

5,270

5,450

5,780 

2,970

4,000

4,180 

4,540

5,090

6,020

14,900

59.000

 56^900

42,100

51,900 

19,700

-

.......

292,780

10,460

580,700

Mar.

14,600 

12,700 

11,600

12,500

19 . 500

19,500

15,500

15,300

14,300

12 , 400

10,700

12,500

10,900

9,480

9,540

9,940 

8,910

7,620

6,860 

6,600

6,600

6,550

5,810

5,530

5,390

5,270

5.190 

5,240

5,510

6,610 

6,510

302,560

9,760

600,100

Apr.

5,860 

*5,450 

5,550

5,420

5,470

5,530

5,330

5,460

5,110

5,150

5,120

5,030

4. 950

8. 800

8,150

6,140 

6,980

7,590

6,580 

5,850

5,700

6,250

6,480

5,830

5,720

5,280

5,260 

5,300

5,420

6,270

176,410

5,880

549,900

May

6,740 

8,190 

7,610

r,oso

6,980

6,970

6,460

6,660

7,110

5,950

5,260

5,060

4,920

5,080

4,860

4.200 

4,330

21,300

24.600 

17)800

14,600

12,400

10,500

9,650

8,940

7,860

7,710 

7,250

6,810

6,560 

6,400

265,790

8,574

527,200

June

6.540 

6,040 

*5,420

5,160

5,010

4,880

4,710

4,590

4,520

4,650

4,840

4,590

4,240

5,930

3,790

3,250 

5,590

5,540

3,220 

2,850

5,140

3,030

2,750

2,890

2,910

2,690

2,550 

2,550

2,520

2.460

116,630

5,888

251,500

July

2,450 

2,410 

2,580

2,380

2.490

2,310

2,260

2,220

2,140

2,260

2,280

2,110

2,090

2,080

2,150

2,290 

 2,190

2,120

2,150 

2,270

2,260

2,260

2,290

2,290

2,230

2,190

2,160 

2,080

2.070

2,070 

2,070

68,980

2,225

156,800

Aug.

2,060 

2,050 

2,020

2,050

2,050

2,010

2,020

2,070

2.140

2,130

2,100

2,000

1,960

1,940

1,940

1,960 

1,970

1,920

1,920 

1,920

1,950

1,940

1,890

1,860

1.850

1,900

1,990 

1,910

1,850

1 1 920 

1,900

Sept.

1,870 

1.860 

1,940

2,020

1,920

1,970

2,030

2,450

2,500

1,920

2,050

2,370

2,540

2,610

2,700

2,720 

2,780

2,710

2,750 

2,660

2,620

2,590

2,460

2,510

2,110

1,970

3.190 

3,150

2,460

 2,590

.... ..

61, 150 1 71,380

1,973

121,300

2,379

141,600

Calendar year 1956: Max 59,500 Mln 1,710 Mean 8,062 Ac-ft 5,860,000

Water year 1956-57: Max 59,000 Mln 1,530 "lean 4,657 Ac-ft 3,371,000

Peak discharge (base, 17,000 cfs). --Feb. 24 (6:30 P.m.) 83,100 cfs (52.91 ft); Mar. 5 (9:30 p.m.) 

20,600 cfs (29.06 ft); May 18 (7 p.m.) 38,800 cfs (39.79 ft).

Discharge measurement made on this day.
450 SACRAMENTO RIVER BASIN

South Honcut Creek near Bangor, Calif.

Location. Lat 39°22'05", long 121°22'15", in SE£ sec. 35, T. 18 N., R. 5 E. , on right 

bank 2.3 miles southeast of Bangor and 3.3 miles upstream from Tennessee Creek.

Drainage area.--30.5 sq mi.

Records available. October 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 620 ft (from topographic map).

Average discharge. 7 years, 39.2 cfs (28,380 acre-ft per year).

Extremes. Maximum discharge during year, 1,840 cfs Feb. 24 (gage height, 7.61 ft); no 

flow for many days.

1950-57: Maximum discharge, 6,340 cfs Dec. 23, 1955 (gage height, 11.15 ft), from 

rating curve extended above 2,200 cfs on basis of slope-area determination of peak 

flow; no flow for several months each year.

Remarks. Records good. Some small diversions upstream for irrigation. Records of chemical analyses for the water year 1957 are given in WSP 1523.

Rating table, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Nov. 6 to Dec. 4, Dec. 9-12, Jan. 6-11)

1.55

1.6

1.7

2.0 1.4

2.1 2.3

2.2 3.7

2.4 8.0

2.6 15

3.0 36

3.5 77

4.0 135

4.5 226

5.0 356

6.0 730

7.0 1,290

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8 

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

0 

0

0

0

.1

.1

.1

0

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.5

.6

.8

.9

27 

22

54.1

1.75

107

Nov.

H4.4

3.5

3.0

2.6

2.3

2.4

2.3

1.4

1.0

if

1.2

1.1

1.0

1.0

1.4

1.5

1.5

*1.6

1.5

1.4

1.4

1.6

1.8

2.3

2.3

1.9

1.9

64.3

2.14

128

Dec.

T71J

2.1

2.5

6^8.

5.0

3.9

3.0 

2.5

2.3

2.2

2.6 

4.4

4.4

4.4

4.

4.

4.

4.

4.

4.4

4.2

4.4

5.0

5.2

5.6

5.8

5.6

5.6

5.8 

5.6

128.9

4.16

256

Jan.

5.8 

5.8

5.8

4.8

4.2

2.8

2.3

H2.1

2.3

5.6 

68

34

18

12

9.2

8.0

8.3

125

22

12

8.8

7.2

*5.8

5.0

4.2

3.7

3.4

3.2

3.0

406.5

13.1

806

Feb.

3.0 

3.0

3.0

2.9

2.8

2.8

3.0

5.4 

12

8.3

6.5

5.6 

5.0

4.6

4.2

3.9

3.7

3.4

3.4

3.5

85

84

378

860

202

282

118

61

2,160.0

77.1

4,280

Mar.

*46 

33

57

250

273

107

62

47 

55

36

29

48 

33

27

53

49

35

29

24

20

18

15

14

13

12

11

9.5

15 

18

1,458.0

47.0

2,890

Apr.

17

13

11

9.5

8.5

8.0

7.5

7.0 

6.5

6.1

6.1

H65

TS

15

45

62

44

33

28

26

22

20

18

16

15

12

10

8.3

569.4

19.0

1,130

May

7.5

13

*9.8

7.8

6.5

5.6

5.4

5.8

11

14

10

9.8 

9.5

10

7.5

5.4

iOT^

TSTf

57

37

26

20

15

14

13

12

10

8.8

11 

15

921.6

29.7

1,830

June

H5^0

6.1

4.6

3.5

3.4

3.9 

3.5

3.7

3.4

2.9 

2.6

2.4

2.4

2.2

1.8

1.3

1.1

1.0

.8

.7

.6

.5

.4

.3

.3

.2

'.2

73.4

2.45

146

July

0.1

.1

0

0

0

0

0 

0

0

0

0 

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0.3

0.01

0.6

Aug.

0

0

0

Sept.

0 

0

0

0

0

0

0

0 

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

'*

0.3

0.01

0.6

Calendar year 1956: Max 1,690 Mln 0 Mean 43.4 Ac-ft 31,530

Water year 1956-57: Max 860 Mln 0 Mean 16.0 Ac-ft 11,570

Peak discharge (base, 800 cfs). Feb. 24 (5 p.m.) 1,840 cfs (7.61 ft); May 18 (3:30 p.m.) 1,470 cfs 

(7.22 ft).______________________________________________________________________

* Discharge measurement or observation of no flow made on this day.
SACRAMENTO RIVER BASIN 451

Milton-Bowman tunnel at outlet, Calif.

Location.--Lat 39°28', long 120°37', in sec. 3, T. 18 N., R. 12 E., on right bank 100 ft 

downstream from tunnel outlet and near upper end of Bowman Lake.

Records available.--May 1928 to September 1930, October 1931 to September 1957.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 5,600 ft (from 

topographic map).

Average discharge. 28 years, 68.7 cfs (49,740 acre-ft per year).

Extremes.--1928-30; 1931-57: Maximum daily discharge, 492 cfs Feb. 11, 1941; minimum 

daily, 0.4 cfs Oct. 7, 1944.

Remarks.--Records good. Tunnel diverts from Middle Yuba River at Milton, in sec. 12, 

T. 19 N., R. 12 E., and discharges into Bowman Lake. During low and medium stages 

practically entire flow of Middle Yuba River is diverted.

Discharge, in cubic feet per second, water year October 1956 to September'1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

5.0

5.0

5.0

5.0

5.3

5.0

5.0

5.3

4.3

5.0

14

15

12

9.4

8.1

7.2

6.9

»6.6

»6.9

6.6

6.6

6.6

7.2

7.2

7.5

12

25

T5

13

17

19

280.7

9.05

557

Nov.

16

14

13

12

12

12

13

13

14

16

18

T7

16

14

13

12

12

12

10

10

10

10

9.8

9.8

9.8

9.4

9.1

57T

9.1

9.1

364.2

12.1

722

Dec.

8.8

8.4

tt

9.1

9.4

8.4

8.8

9.1

9.4

9.4

10

19

22

24

2S

20

19

16

14

13

13

12

12

12

11

10

10

10

10

10

10

389.2

12.6

772

Jan.

9.4

9.8

9.8

»9.4

9.4

9.1

57T

9.4

9.1

9.8

10

10

14

14

14

13

12

12

12

12

12

12

12

12

12

11

11

10

10

10

10

339.3

10.9

673

Feb.

10

Iff

10

10

10

10

10

10

10

10

11

13

17

29

36

37

40

43

44

42

42

43

55

109

412

365

346

272

-

2,056

73.4

4,080

Mar.

165

152

145

129

342

350" 357

221

189

148

131

120

109

99

94

86

79

76

73

73

76

70

6770"

75

75

86

114

176

160

155

4,232

137

8,390

Apr.

131

116

T2T

152

208

290

197

245

294

333

339

294

284

360

352

303

218

173

150

139

131

139

160

179

245

272

333

5SO" 381

*352

7,251

242

14,380

May

»388

414

381

368

421

425

423

423

419

388

391

388

391

376

562

396

581

452

435

450

425

425

409

586

414

450

423

428

428

450

428

12,649

408

25,090

June

428

45S

425

428

288

179

»251

186

186

179

179

176

182

215

197

186

176

168

162

152

155

125

120

116

107

96

88

82

75

66

5,759

192

11,420

July

58

25

2£ 6.8

57

56

54

52

29

26

24

23

22

20

19

18

16

16

15

14

14

13

12

22

12

11

9.9

9.9

9.5

9.1

8.7

617.9

19.9

1,250

Aug.

8.5

T3

7.9

7.5

7.1

6.8

6.4

6.4

6.4

6.4

6.1

6.1

5.7

5.7

5.4

»5.3

5.1

5.1

5.1

4.8

4.8

4.8

4.8

4.8

5.1

5.1

5.1

5.1

5.1

5.1

5.1

180.4

5.82

558

Sept.

4.8

4.8

4.8

4.8

4.0

2.9

2.7

2.5

275

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.7

5.1

3.5

3.5

5.5

3.5

5.3

3.5

5.5

5.5

4.8

4.8

6.4

105.4

5.45

205

Calendar year 1956: Max 400 Kin 3.0 Mean 64.6 Ac-ft 46,930

Water year 1956-57: Max 432 Mln 2.5 Mean 93.8 Ac-ft 67,880

* Discharge measurement made on this day.

510529 O - 59 - 30
452 SACRAMENTO RIVER BASIN

Middle Yuba River at Milton, Calif.

Location. Lat 39°31'22" J long 120°35 I 01", in SW£ sec. 12, T. 19 N., R. 12 E. , on right 

bank at diversion dam of Nevada Irrigation District, at old townsite of Milton, 

4 miles southeast of Sierra City and 8 miles upstream from South Fork of Middle Yuba 

River.

Drainage area.--39.5 sq mi.

Records available.--December 1925 to September 1934, October 1935 to September 1957. 

Prior to October 1949, published as "Middle Fork Yuba River."

Gage. Water-stage recorder and concrete spillway control. Altitude of gage is 5,700 ft 

(from topographic map). Prior to June 8, 1928, at site 0.2 mile downstream at different datum.

Average discharge. 27 years (1926-30, 1931-34, 1935-40, 1941-42, 1943-57), 110 cfs

(79,600 acre-ft per year), based on combined flow of Middle Yuba River at this station 

and Milton-Bowman tunnel at outlet.

Extremes.--Maximum discharge during year, 2,910 cfs May 18 (gage height, 2.49 ft); no 

flow over dam for long periods.

1925-34, 1935-57: Maximum discharge, 6,800 cfs Dec. 11, 1937 (gage height, 

4.18 ft), from rating curve extended above 1,500 cfs on basis of computation of peak 

flow over dam; practically all flow diverted after May 23, 1928.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Milton-Bowman tunnel (see preceding page) diverts above station to Bowman Lake (see 

p. 458).

Cooperation. Water-stage recorder inspected by employees of Nevada Irrigation District. 

Revisions. WSP 1395: Drainage area.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

0.0 

.1 

.2 42

.3 88

.4 143

Discharge, in cubic feet per second, water year October 1956 to September 1957

0.5 

.7 

.9 

1.2 

1.5

207

354

535

870

1,270

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

136

33

0

0

0

-

169

6.03

335

Calendar year 1956: Max 1,120 Min 0

Mar.

0

0

0

Apr.

0

0

0

Mean 79 . 7

May

0

3.6

0

0

46

132

100

44

.7

0

0

0

0

0

0

0

0

1.190 

654

138

32

a!5

a5

a!5

aO

aO

a!5

aO

aO 

aO

aO

2,390.3

77.1

4,740

June

alO

a 20

a35

a 60

a240

*249

160

162

132

104

88

78

54

6.8

.2

0

0

0 

0

0

0

0

0

0

0

0

0

0

0 

0

1,399.0

46.6

2,770

July

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Ac-ft 57,840

Water year 1956-57: Max 1,190 Min 0 Mean 10.8 Ac-ft 7,840

* Discharge measurement or observation of no flow made on this day.

a No gage-height record; discharge estimated on basis of records for North Yuba River below 

Qoodyears Bar.
SACRAMENTO RIVER BASIN 453

Middle Yuba River above Oregon Creek, Calif.

Location Lat 39-23'35", long 121 "04"50", in SE^ sec. 28, T. 18 N., R. 8 E., on left 

bank 1,000 ft upstream from Oregon Creek and 2 miles northeast of North San Juan.

Drainage area. 162 sq mi.

Records available. March 1941 to September 1957. Prior to October 1949, published as 

"Middle Pork Yuba River." If record for Oregon Creek near North San Juan is subtracted 

from record published as Middle Fork Yuba River near North San Juan, a record equivalent to that at this site can be obtained for the period 1910-41.

Gage. Water-stage recorder. Altitude of gage is 1,440 ft (from topographic map). 

Average discharge. 16 years, 367 cfs (265,700 acre-ft per year).

Extremes. Maximum discharge during year, 8,810 cfs May 18 (gage height, 11.17 ft); minImum, 35 cfs Aug. 25.

1941-57: Maximum discharge, 26,400 cfs Dec. 22, 1955 (gage height, 17.25 ft), from 

rating curve extended above 8,200 cfs on basis of slope-area determination at gage 

height 15.25 ft; minimum, 10 cfs Jan. 3, 1950.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Milton-Bowman tunnel (see p. 451), above station, has diverted to Bowman Lake since 

1928; also other small diversions above station.

Revisions. WSP 1395: Drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 24 Feb. 24 to Sept. 30

2.4 

2.7 

3.3 

4.0

37

67

162

315

5.0 

6.0 

7.0 

8.0

680

1,320

2,190

3,360

2.5 

2.7 

3.0 

3.5 

4.0

29

52 100

210

355

5.0 770

6.0 1,410

7.0 2,300

9.0 4,770

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

44

44

45

46

47

45

45

52

50

55

118

80

62

55

52

51

50

49

50

50

50

49

67

73

58

34

121

83

71

303 

23T

2,280

73.5

4,520

Nov.

"89 114

75

72

72

73

72

73

72

72

71

66

65

*62

59

58

57

57

56

54

53

53

52

51

51

50

49

49

49

48

1,894

63.1

3,760

Dee.

48

48

48

59

128

S3

68

58

63

62

75

106

101

98

86

79

74

71

67

»65

63

60

59

58

57

56

56

56

53

53 

53

2,111

68.1

4,190

Jan.

52

51

51

50

50

50

49

57

52

53

57

111

454

210

142

118

103

95

82

155

133

107

 96

93

93

82

69

83

72

79 

79

3,028

97.7

6,010

Feb.

79

83

74

79

74

73

83

188

171

131

149

186

245

295

275

270

260

252

234

216

280

381

982

2.860

*2, 610

1,710

1,390

982

-

14,612

522

28,980

Calendar year 1956: Max 5,450 Mln 41

Mar.

730

661

630

922

2,270

1,940

1,280

976

1,030

790

670

904

760

648

760

745

608

530

470

444

490

425

422

362

348

*332

316 325-

394

422 

418

22,022

710

43,680

Apr.

390

34S

332

335

342

358

335

316

313

322

319

307

'Boe 292

T74

408

486

526

482

440

408

411

404

394

372

352

348

358

380

411

11,569

386

22,950

May

422

562

462

422

432

542

574

522

486

436

 404

383

362

355

322

316

322

3,340

5.440

1,790

1,310

1,100

910

785

705

690

826

826

800

730 

685

25,261

815

50,100

June

735

720

578

526

550

680

538

478

455

397

355

322

313

264

215

193

179

168

158

149

138

134

128

120

116

110

110

106

100

11.

9,133

304

18,110

July

93

55

86

81

75

73

72

69

67

62

61

61

58

56

55

52

51

48

47

46

46

44

42

42

39

37

35

48

55

COOO

58

1,811

58.4

3,590

Aug.

58

58

58

58

58

60

60

60

60

58

56

55

54

54

52

49

48

47

46

44

44

44

44

39

36

36

36

36

39

39 

48

1,534

49.5

3,040

Sept.

49

45

45

45

40

40

40

40

40

40

37

37

37

40

40

40

40

40

40

40

40

40

40

37

37

45

70

"To 100

*52

1,346

44.9

2,670

Mean 455 Ae-ft 330,500

Water year 1956-57: Max 3,440 Mln 36 Mean 265 Ae-ft 191,600

Peak discharge (base, 1,800 efs).--Feb. 24 (7 p.m.) 4,980 efs (9.14 ft); Mar. 5 (9 p.m.) 2,580 efs 

(7.28 ft); May 18 (8:50 p.m.) 8,810 cfs (11.17 ft)._____________________________________

* Discharge measurement made on this day.

Note. Ho gage-height record Sept. 2-30; discharge estimated on bssis of 1 discharge measurement, 

recorded range In stage, and records for Oregon Creek near North San Juan.
454 SACRAMENTO RIVER BASIN

Oregon Creek near North San Juan, Calif.

Location.--Lab 39°24'10", long 121°04'35", In NW^NW^- sec. 27, T. 18 N., R. 8 E., on right 

bank 0.7 mile upstream from mouth and 2.7 miles northeast of North San Juan.

Drainage area. 34.4 sq ml.

Records available. October 1910 to September 1957.

Gage.--Water-stage recorder. Altitude of gage Is 1,580 ft (from topographic map). Prior 

To October 1933, staff gages at site 0.6 mile downstream at different daturas.

Average discharge. 46 years (1911-57), 76.4 cfs (55,310 acre-ft per year).

Extremes.--Maximum discharge during year, 1,520 cfs May 18 (gage height, 7.50 ft); minimum, 3.0 cfs Sept. 10.

1910-57: Maximum discharge, 5,390 cfs Dec. 22, 1955 (gage height, 11.90 ft), from 

rating curve extended above 2,000 cfs; minimum, 0.7 cfs several days In July, August 

1931, September 1934.

Remarks. Records good. Small diversions above station for Irrigation and mining. 

Revisions (water years). WSP 1395: 1914, 1927-28, drainage area.

Rating table, water year 1-956-57 (gage height, In feet, and 

discharge, In cubic feet per second)

1.5

1.6

1.7 

1.9

1.9

4.0

6.5

13

2.2 

2.5 

3.0 

3.5

81

130

4.0 

5.0 

6.0 

7.0

197

398

710

1,220

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

5

4

5

6

7 

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

50

51

Total

Mean

Ac-ft

Oct.

5.2

5.2

5.2

5.2

5.2

5^0

5.2 

6.0

6.0

6.8

18

11

8.0

7.4

6.5

6.5

6.5

6.5

6.5

6.5

6.2

6.2

16

15

9.5

16

30

13

12

129 "91

482.5

15.6

957

Nov.

28

TJ?

18

16

15

15

15 

12

12

11

11

11

9.8

*9.5

9.5

9.2

9.2

8.9

8.6

8.5

8.5

8.6

8.5

8.5

8.0

8.0

8.0

8.0

8.0

7.7

536.2

11.2

667

Dec.

7.7

7.4

7.7

14

31

18

12

11

11

11

13

19

19

19

16

14

13

12

*12

11

11

10

11

10

9.5

8.9

8.9

9.5

9.2

9.2

8 Q y

384.9

12.4

763

Jan.

8.6

8.3

9.5

8.0

8.9

8.6

7.7 IT"

8.6

8.9

10

31

185

77

46

36

30

26

24

40

34

26

*25

22

22

18

15

18

15

15

16

817.1

26.4

1,620

Feb.

16

17

15

15

15

15

19 

72

62

41

59

51

77

94

90

90

86

82

75

75

147

295

408

846 *'5l8~

546

447

530

4,879

174

9,680

Calendar year 1956: Max 2,080 Mln 4.2

Mar.

242

199

191

379

950

652

429 

550

526

262

212

308

274

230

278

288

224

184

163

148

156

159

126

115

108

*101

94

89

92

97

100

7,466

241

14,810

Apr.

100

90

84

78

75

70

67 

64

59

56

54

52

51

101

80

76

121

Tso- 141

iie

106

98

91

87

85

76

70

66

62

59

2,465

82.1

4,890

May

56

94

70

60

54

51

*50 

54

64

59

55

52

50

51

48

44

45

702 648"

550

400

520

260

206

170

147

130

116

106

95

86

4,871

157

9,660

June

77

7O

62

59

55

50

48 

46

44

42

59

57

56

34

33.

51

29

28

25

24

24

22

22

*21

19

18

18

17

17

16

1,065

55.4

2,110

July

TB~ 16

15

14

15

13

13 

13

12

12

11

9.5

9.5

9.2

9.2

8.9

8.6

8.6

8.5

8.6

8.6

8.0

8.0

7.7

7.7

7.4

7.7

7.7

6.8

6.5

6.5

309.7

9.99

614

Aug.

6.0

6.0

5.8

5.8

6.0

6.0

ft

6.5

6.8

6.0

6.2

5.8

5.8

6.0

6.2

6.2

5.0

4.2

475

*4.2

5.0

5.2

5.2

5.0

4.5

4.5

4.5

4.5

4.8

4.5

170.6

5.50

358

Sept.

4.5

4.2

4.0

5.8

5.6

5.8

5.8 

5.8

5.8

5.4

5.4

5.4

3.6

4.0

4.0

4.0

4.2

4.2

4.2

4.2

4.2

4.0

4.0

3.8

3.8

5.6

6.5

14"9.5

*8 .0

159.5

4.64

276

Mean 94.8 Ac-ft 68,810

Water year 1956-57: Max 950 Mln 5.4 Mean 64.1 Ac-ft 46,380

Peak discharge (base, 410 cfs). Feb. 24 (9 p.m.) 1,550 cfa (7.21 ft); Mar. 5 (5 a.m.) 1,220 cfa 

(7.00 ft); May 18 (7 p.m.) 1,520 cfs (7.50 ft).________________________________________

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 455

North Yuba River below Goodyears Bar, Calif.

Location (revised) . Lat 39°31'30", long 120°56'13", In SW£ sec. 11, T. 19 N., R. 9 E., 

on right bank 200 ft downstream from St. Catherine Creek, 3.1 miles southwest of 

Goodyears Bar, and 6.4 miles southwest of Downieville.

Drainage area. 245 sq mi.

Records available . December 1930 to November 1937, December 1938 to September 1957. 

Prior to October 1949, published as North Pork Yuba River below Goodyears Bar.

Gage. Water-stage recorder. Datum of gage is 2,453 ft above mean sea level (riverprofile survey).

Average discharge.--24 years (1931-37, 1939-57), 750 cfs (543,000 acre-ft per year).

Extremes. Maximum discharge during year, 11,200 cfs May 18 (gage height, 13.13 ft), from 

rating curve extended above 4,300 cfs as explained below; minimum, 142 cfs Sept. 24.

1930-57: Maximum discharge, 26,800 cfs Dec. 23, 1955 (gage height, 19.30 ft), 

from rating curve extended above 4,300 cfs on basis of float measurement at gage height 

16.0 ft and slope-area determination at gage height 19.15 ft; minimum, 69 cfs Aug. 26, 

1931.

Remarks. Records excellent. Several small diversions above station for irrigation and 

mining.

Revisions (water years). WSP 1041: 1944. WSP 1395; Drainage area.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 24 Feb. 24 to Sept. 3O

2.0 

2.5 

3.0 

4.0 

5.0

159

224

316

590

1,000

6.0 1,540

7.0 2,280

9.0 4,400

11.0 7,270

1.7 

2.0 

2.5 

3.0 

4.0

137

167

239

340

606

5.0 

6.0 

7.0 

9.0 

11.0

1,010

1,620

2,430

4,580

7,360

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

166

164

166

169

172

169

166

187

183

186

385

290

229

205 

192

185

180

177

178

176

174

171

201

212

191

336

506

278

220

isf

7,439

240

14,760

Nov.

304

261

253

244

249

262

272

288

296

300

294

272

258

*237 

226

221

214

210

199

196

199

195

194

191

188

187

186

185

182

182

6,953

232

13,790

Dec.

180

177

177

212

251

209

199

191

194

198

267

349

316

323

276

258

244

234

*229

216

212

201

206

202

196

192

190

190

188

183

6,846

221

13,580

Jan.

182

180

180

176

176

175

174

T55

178

180

198

272

781

405 

312

274

247

237

232

314

269

*242

230

229

226

209

201

206

199

199

196

7,464

241

14,800

Feb.

201

208

194

192

192

192

205

298

282

253

274

323

488

622 

608

612

615

615

573

534

573

824

1,800

5.920

5,700

*3,790

2,930

2,090

-

31,108

1,111

61,700

Mar.

1,620

1,550

1,360

1,570

5.560

5,000

2,260

1,860

1,870

1,540

1,560

1,610

1,580

1,250 

1,510

1,280

1,110

1,020

945

910

965

865

816

788

*780

760

T7f

856

1,040

980

985

41,752

1,547

82,810

Apr.

896

858

842

892

965

1,040

950

950

985

1,050

1,040

975

915

1,540 

1,180

1,070

1,110

1,080

1,020

960

930

960

985

985

985

965

1,040

1,160

1,520

1,570

30,998

1,055

61,480

May

1,410

1,580

1,290

1,500

1,490

*1,650

1,620

1,570

1,420

1,550

1,240

1,190

1,140

1,100 

1.040

1,120

1,220

5.950

5,380

5,500

2,560

2,500

2,050

1,920

1,900

2,010

2,160

2,160

2,100

2,060

2,090

60,650

1,956

120,300

June

2.200

2,120

1,970

1,920

1,930

1,730

1,580

1,480

1,370

1,280

1,200

1,140

1,100

1,000 

920

847

800

784

772

752

726

705

674

654

658

606

588

570

549

518

53,125

1,104

65,700

July

493

469

445

425

402

590

381

364

352

540

329

520

514

511 

505

296

288

282

278

274

268

265

261

253

250

243

241

254

229

222

219

9,741

514

19,520

Aug.

216

214

208

206

206

205

205

202

199

195

192

189

187

186

185

180

178

177

174

172

172

171

168

167

167

166

165

165

165

165

166

5,709

184

11,520

Sept.

164

159

157

157

156

153

151

150

149

149

149

149

149

148 

148

149

155

165

158

152

150

147

145

144

144

145

180

216

172

*199

4,709

157

9,340

Calendar year 1956 : Max 6,280 Mln 164 Mean 949 Ac-ft 689,200

Water year 1956-57 : Max 5,950 Mln 144 Mean 675 Ac-ft 488,900

Peak discharge (base. 3,200 cfs).--Feb. 24 (7 p.m.) 9,090 cfs (12.05 ft); Mar. 5 (7 p.m.) 

5,610 efs (8.17 ft); Hay 18 (7 p.m.) 11,200 cfs (13-15 ft)._______________________ 

* Discharge measurement made on this day.
456 SACRAMENTO RIVER BASIN

North Yuba River below Bullards Bar Dam, Calif.

Location. Lat 39°24'15", long 121°08'30", In SW£ sec. 24, T. 18 N., R. 7 E., on right 

bank 2,000 ft downstream from Bullards Bar Dam, 3 miles upstream from confluence with 

Middle Yuba River, and 3 miles northwest of North San Juan.

Drainage area. 482 sq ml.

Records available. December 1940 to September 1957. Prior to October 1949, published as 

North Fork Yuba River at Colgate diversion dam and October 1949 to September 1950 as 

North Yuba River at Colgate diversion dam.

Gage.--Water-stage recorder. Altitude of gage Is 1,390 ft (from river-profile map). 

Prior to Oct. 1, 1950, at site 1 mile downstream at different datum.

Average discharge. 16 years (1941-57), 1,538 cfs (1,113,000 acre-ft per year).

Extremes.--Maximum discharge during year, 30,200 cfs Feb. 24 (gage height, 24.4 ft): no

 fTow~Oct. 25-29, Nov. 10, 11.

1940-57: Maximum discharge, 70,000 cfs Dec. 23 1955 (gage height, 39.0 ft, from 

floodmark), from rating curve extended above 32,000 cfs on basis of computation of 

flow over dam at gage height 29.5 ft: no flow Oct. 22, 23, 1949, Oct. 25-29, Nov. 10, 

11, 1956.

Remarks.--Records good above 250 cfs and fair below. Flow usually completely regulated 

below 650 cfs by Bullards Bar powerhouse, otherwise slightly regulated by Bullards 

Bar Reservoir. No large diversion above station.

Revisions. WSP 1395: Drainage area.

Rating table, water year 1956-57 (gage height. In feet, and discharge,

In cubic feet per second)

1.6 0 2.2 3.0 4.0 76 7.0 1,060

1.7 .1 2.4 6.0 4.5 130 9.0 2,700

1.8 .3 2.8 14 5.0 210 11.0 5,100

1.9 .5 3.2 27 5.5 330 14.0 10,000

2.0 1.0 3.6 47 6.0 510 18.0 17,400

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

265 

270

265

268

270

270

265

262

270

295

345

402

412

381

370

286

330

306

295

288

280

94

11

a5

aO

aO

aO

aO

aO *a79

1.270

7,854

253

15,580

Nov.

796 

620

590

585

685

838

832

820

a283

aO

aO

a224

585

585

585

*585

580

580

570

570

565

560

555

550

545

545

518

530

520

498

16,299

543

32,330

Dec.

482 

450

420

398

412

423

423

398

370

367

381

412

454

474

490

457

486

478

*462

442

416

395

384

374

370

358

360

353

354

342

524

12,709

410

25,210

Jan.

312 

306

318

321

309

303

302

309

315

202

317

351

422

530

555

555

555

555

555

555

555

*555

555

555

555

535

525

525

502

506

494

13,809

445

27,390

Feb.

487 

494

494

490

474

470

466

470

494

444

502

510

520

530

545

545

555

720

1,100

1,100

1,260

2,170

4,810

17.200

17,000

*10,000

8,550

5,430

-

77,830

2,780

154,400

Mar.

4,440 

3,420

3,130

3,410

8.060

7,870

5,660

4,300

4,380

3,680

3,050

3,820

3,380

2,880

2,990

3,040

2,620

2,380

2,180

2,050

2,130

1,880

,860

,720

* ,660

,610

.580

,650

,870

2,010

1,930

96,640

3,117

191,700

Apr.

1,880 

1,710

1.660

1,700

1,780

1,880

1,780

1,720

1,700

1,770

1,790

1,700

1,720

2.740

2,480

2,080

2,240

2,400

2,210

2,050

1,940

1,970

1,990

1,960

1,920

1,830

1,840

1,930

2,120

2,210

58,700

1,957

116,400

May

2,260 

2,630

2,300

2,130

2,250

2,450

*2,490

2,380

2,380

2,150

2,020

1,900

1,820

1,820

1.700

1,700

1,820

9,910

12.400

7,689

5,290

4,810

4,080

3,630

3,360

3,220

3,330

3,310

3,170

3,040

2, 960

106,390

3,432

211,000

June

5.050 

3,000

2,770

2,630

2,590

2,470

2,230

2,110

2,000

1,840

1,740

1,640

1,610

1,500

1,390

1,300

1,220

1,160

1,140

1,110

1,090

1,050

1,010

970

*940

898

868

838

808

766

47,718

1,591

94,650

July

735 

710

675

650

620

600

564

600

560

545

540

540

540

540

540

540

545

550

545

545

545

545

545

540

535

458

348

351

478

530

530

17,089

551

33,900

Aug.

512 

430

324

324

442

515

420

354

336

210

185

3(5T

292

299

298

294

199

199

274

288

327

349

334

282

278

442

506

498

482

394

282

10,670

344

21-, 160

Sept.

280 

278

393

375

309

303

258

255

292

270

262

258

255

238

238

260

262

262

258

262

240

244

268

265

258

248

242

298

339

126

8,093

270

16,050

Calendar year 1956 : Max 17,400 Mln 0 Mean 1,853 Ao-ft 1,345,000

Water year 1956-57 : Max 17,200 Mln 0 Mean 1,298 Ac-ft 939,800

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and powerhouse 

ecords.
SACRAMENTO RIVER BASIN 457

South Yuba River near Cisco, Calif.

Location (revised) . Lat 39°19'12", long 120°33'38", in SW£ sec. 19, T. 17 N. , R. 13 E. , 

on right bank 0.7 mile downstream from Rattlesnake Creek, 1.3 miles west of Cisco 

Grove, and 1.5 miles northwest of Cisco.

Drainage area. 51.5 sq mi.

Records available.--April 1942 to September 1957. Prior to October 1949, published as 

South Fork Yuba River near Cisco.

Gage.--Water-stage recorder. Altitude of gage is 5,520 ft (from river-profile map). 

Prior to October 1945, at site 200 ft upstream at same datum.

Average discharge.--15 years, 197 cfs (142,600 acre-ft per year).

Extremes.--Maximum discharge during year, 5,420 cfs May 18 (gage height, 11.20 ft); minimutn recorded, 13 cfs Nov. 19.

1942-57: Maximum discharge, 11,700 cfs Nov. 20, 1950 (gage height, 15.82 ft), 

from rating curve extended above 4,600 cfs on basis of slope-area determination of 

peak flow; minimum daily, 0.1 cfs Nov. 5-7, 1954.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. Low flow regulated by Lake Van Norden (capacity, 4,320 acre-ft; 

5,260 acre-ft with flashboards).

Revisions.--WSP 1395: Drainage area.

Rating table, water year 1956-57, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

2.5 48

3.0 

3.5 

4.0

109

210

350

5.0 

7.0 9'.0

710

1,810

3,300

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

37

37

37

37

37

36

37

38

37

41

48

41

39

37

37

36

35

35

35

34

33

33

37

35

36

56

60

40

38

52

44

1,215

39.2

2,410

Nov.

41

40

38

38

40

41

43

53

61

61

57

45

*40

33

26

23

21

20

16

b!6

16

16

16

16

16

16

16

16

16

16

913

30.4

1,810

Dec.

16

16

16

16

16

15

14

T6

25

40

60

75

70

65

60

65

60

*60

49

43

b38

b38

37

33

33

b30

b30

30

29

28

b25

1,148

37.0

2,280

Jan.

23

b22

22

b!9

b!9

18

17

19

19

19

20

25

30

29

28

27

26

26

25

25

23

23

23

23

23

23

21

21

21

21

21

701

22.6

1,390

Feb.

21

21

21

20

20

20

*20

26

25

25

49

68

123

208

215

208

218

208

184

158

128

133

255

875

*944

487

332

250

-

5,262

188

10,440

Mar.

205

235

205

250

500

400

350

300

280

260

240

240

200

170

150

120

100

*95lalie

126

105

98

112

135

135

179

287

392

269

243

6,595

213

13,080

Apr.

182

162

205

329

428

420

281

320

395

442

395

320

329

582

317

263

218

215

205

179

173

208

248

299

353

392

522

666

702

674

10,424

347

20,680

May

718

*730

487

638

875

930

822

678

498

456

377

386

407

374

392

586

650

3.110

1,540

610

508

504

434

501

614

855

1,000

925

836

905

955

23,301

752

46,220

June

1,040

930

826 831

845

666

566

518

431

389

380

*377

356

275

208

196

205

218

218

196

182

168

154

142

130

116

104

90

64

56

10,877

363

21,570

July

51

46

41

36

12

57

60

57

67

66

64

61

59

58

56

55

54

53

51

50

48

47

46

44

43

42

41

38

37

37

35

1,533

49.5

3,040

Aug.

33

33

39

41

40

38

37

35

34

33

31

30

*30

30

29

28

37

42

43

42

42

42

42

41

41

41

40

40

39

41

33

1,147

37.0

2,280

Sept.

33

32

34

45

36

33

31

30

30

30

30

30

29

25

23

23

24

24

23

22

22

22

21

21

21

22

24

26

23

27

816

27.2

1,620

Calendar year 1956: Max 1,770 Mln 14 Mean 255 Ac-ft 184,900

Water year 1956-57: Max 3,110 Mln 14 Mean 175 Ac-ft 126,800

Peak discharge (base, 1,500 cfs).--Feb. 24 (8:30 a.m.) 1,580 cfs (6.62 ft); May 18 (6 p.m.)

5.420 efs (11.20 ft); June 1 (7:50 p.m.) 1.540 efs (6.55 ft)._______________________________

* Discharge measurement made on this day.

b Stage-discharge relation affected by Ice.

Note. No gage-height record Dec. 4-18, Jan. 11 to Feb. 7, Mar. 4-18; discharge estimated on basis 

of recorded range In stage, 3 discharge measurements, weather records, and records for Middle Fork 

American River at French Meadows.
458 SACRAMENTO RIVER BASIN

Bowman Lake near Graniteville, Calif.

Location. Lat 39°27' , long 120°39', in SW^ sec. 5, T. 18 N., R. 12 E., on rock-fill 

portion of Bowman Dam on Canyon Creek, 4 miles east of Graniteville and 8 miles south 

of Sierra City.

Drainage area. 29.4 sq mi.

Records available.r-December 1926 to September 1957.

Page. Staff gage read once daily. Datum of gage is at mean sea level (levels by Nevada 

Irrigation District}.

Extremes. Maximum contents observed during year, 70,000 acre-ft May 21 to June 30 (elevation, 5,565.3 ft); minimum observed, 11,400 acre-ft Feb. 12-14; minimum elevation, 

5,472.9 ft Feb. 13.

1926-57: Maximum contents observed, 70,500 acre-ft one or more days in 1937, 1943, 

1950-51, 1953-54 (elevation, 5,565.9 ft); no contents Nov. 25 to Dec. 9, 1949.

Remarks. Lake is formed by one rock-fill and one concrete-arch dam; completed and storage 

began in November 1926. Capacity, 68,200 acre-ft between elevations 5,400 (bottom of 

outlet tunnel) and 5,563 ft (crest of concrete-arch dam) above mean sea level. Plashboards are occasionally added, increasing elevation to 5,564.5 ft and capacity to 

69,400 acre-ft. Lake receives water from Middle Yuba River through Milton-Bowman 

tunnel (see p. 451), and releases it through Bowman-Spaulding Canal (see following 

page) which conveys it to reservoirs of Pacific Gas & Electric Co. Water is eventually 

used for irrigation by Nevada Irrigation District. Record shows total contents, all 

of which are available for release.

Cooperation. Records of gage heights furnished by Nevada Irrigation District. 

Revisions. WSP 1395: Drainage area.

Capacity table, water year 1956-57 (elevation, in feet, 

and total contents, in acre-feet)

5,470.0 

5,480.0 

5,510.0 

5.54O.O 

5,570.0

10,200

14,200

30,000

49,800

73,800

Total contents, in acre-feet, water year October 1956 to September 1957

Day

1 

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

56 . BOO 

56,300

55,900

55,600

55,200

54,700

54,200

53,900

53 , 500

53,100

52,600

52,300

52,100

51,400

50,900

50,700

50,400

50,500

49,700

49,200

48,800

48,400

48,100

47,700

47,300

46,900

46,600

46,200

45,900

45,700

45,500

5,533.8

-11,700

Nov.

45.000 

44,700

44, 300

43,800

43,400

43,000

42,400

42,100

42,000

41,500

41,200

40,800

40,400

40,000

39,600

39 , 300

38,700

38,200

37,700

37,300

37,000

36,700

36,300

35,900

35,500

35,200

34,800

34,400

34,100

55,600

5,516.0

-11 , 900

Dec.

35 , 200 

52,900

52 , 400

52,000

51,600

51,200

50, 800

50,400

50 , 100

29 , 700

29,300

28,900

28,600

28,100

27,800

27,400

27,100

26,600

26,200

26,000

25,800

25,500

25,500

25,000

24,800

24,500

24,200

23,900

25,600

25 , 500

22,900

5,498.0

Jan.

22,800 

22,400

22,200

21,800

21,600

21,400

21,200

_

_

19,800

19,500

19,100

18,600

17,900

17,400

16,900

17,500

17,000

16,600

16,200

15,800

15,400

15,200

14,700

14,500

14,000

15,600

15,200

12,800

12 1 300

12,500

5,475.2

-10,700 -i.0,600

Feb.

12,600 

12,600

12,700

12,700

12,600

12,400

12,200

12,000

11,900

11,800

11,600

11,400

11,400

11,400

11,800

12,100

12,200

12,400

12,600

12,600

12,500

12,500

12,600

15,400

15,500

17,800

19,400

20.500

..

5,495.2

+8,200

Mar.

21,000 

21,560

22,100

22,600

25,700

25,500

26,800

27,600

28,400

28, 700

29,100

29,500

29,800

29,800

29,900

50,000

30.OOO

29,900

29,800

29,800

29,700

29,600

29,500

29,400

29,500

29,200

29,200

29,000

29,400

29 800

29^900

5,509.8

1-9,400

Apr.

50.300 

30,500

50,500

50,700

31,100

31,600

52,100

52,500

52,900

33,400

34,000

34,500

34,900

35,800

36,800

37,500

57,700

38,100

38,500

58,500

58,600

58,600

58,900

59,200

59 , 400

40,000

41,200

41,400

42,200

45,400

5,530.9

+13,500

May

44,400 

45,800

46,700

47,700

48,700

50,000

51,400

52,800

54,000

55,000

55,800

56,500

57,300

58,000

58,600

59,200

60,200

61,800

66,600

68,600

>70,000

5,565.5

+2G,SOO

June

>70,000

5,565.5

0

July

69,700 

69,300

69,300

69,000

68,700

68,400

68,100

67,800

67,500

67,200

66,900

66,700

66,600

66,600

66,600

66,400

66,100

65,800

65,600

65,500

65,100

64,800

64,400

64,100

63,700

63,400

65,100

62,800

62,400

62,000

61.600

5,554.8

-8,400

Aug.

61.200 

60, 900

60,500

60,200

59,800

59 , 400

59,000

58, 600

58,500

57,900

57,500

57,200

57,100

56,800

56,400

56,200

56,000

55,700

55,500

55,200

55,200

55,100

54,800

54,800

54,800

55,000

55,200

55,200

55,200

55,500

55,400

5,547.0

-6,200

Sept.

55.400 

55,500

55,200

55,200

55,100

54,900

54,700

54,400

54,300

54,000

53,900

53,600

55,400

55 , 200

52,900

52,700

52,400

52,100

51,900

51,500

51,200

50,900

50,600

50,500

50,000

49,700

49,500

49,000

48,700

48,500

5,557.8

-7,100

Calendar year 1956.................... * -25,400

Water year 1956-57.................... * -8,900

t Elevation, in feet, at end of month. 

* Change In contents, In acre-feet.
SACRAMENTO RIVER BASIN 459

Bowman-Spaulding Canal at intake, Calif.

Location. Lat 39°27', long 120°39', in sec. 8, T. 18 N., R. 12 E., on left bank 150 ft 

downstream from intake, 0.2 mile downstream from Bowman Dam, and 8 miles south of 

Sierra City.

Records available. October 1927 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 5,400 ft (from topographic map).

Average discharge. 30 years, 145 cfs (105,000 acre-ft per year).

Extremes. 1927-57: Maximum daily discharge, 262 cfs Aug. 2-9, 29, Sept. 10-13, 1928; 

no flow at times each year except 1943-45, 1948.

Remarks. Records good. Canal diverts from left bank of Canyon Creek below Bowman Lake. 

Water is delivered to Lake Spaulding and, after passing through several powerhouses, 

is used for irrigation by Nevada Irrigation District.

Revisions (water years). WSP 1395: 1935-3'e, 1940.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

224

224

222

223

225

224

224

224

225

225

202

216

217

219

132

151

215

*221

158

222

222

222

221

221

220

221

217

217

217

221

217

6,609

213

13,110

Nov.

221

221

221

221

221

222

212

222

216" 131

221

220

219

221

222

221

221

221

221

221

221

221

221

221

221

220

221

223

T27

222

6,532

218

12,960

Dec.

325

'STB" 326

225

225

224

223

222

221

151

223

322

323

224

224

223

223

223

224

224

224

224

223

222

224

324

224

224

322

225

325

6,931

324

13,750

Jan.

225

255

*225

224

223

222

221

209

211

215

215

215

216

214

213

213

213

214

213

213

213

213

212

212

211

211

206

207

207

207

150

6,588

213

13,070

Feb.

122

133

133

133

133

1S3

133

133

133

133

133

133

134

134

134

134

134

133

143

206

225

2l5

143

51

4.2

.8

.5

60

-

3,436.5

123

6,820

Mar.

97

98

98

72

6.8

24

62

72

67

116

116

116

130

147

148

163

180

173

180

184

184

184

184

184

196

253" 203

187

170

164

154

4,262.8

138

8,460

Apr.

172

180

THO

175

152

157

165

165

161

148

149

159

163

75

ITS

134

147

156

169

170

170

170

170

170

171

171

164

151

137

*130

4,709

157

9,340

May

*122

88

116

116

116

111

104

101

112

125

134

146

149

142

156

T5B" 162

24

28

50

18

3.1

2.6 2TS"

5.9

7.8

7.8

7.8

7.8

7.8

7.9

2,336.1

75.4

4,630

June

3.8

.5

.5

.5

.5

.6

.6

.6

.6

.8

.9

.9

.9

.9

.9

.8

.7

.2

00"

0

0

0

0

.2

3.5

14

30

55

149

266.9

8.90

529

July

225

228

T27

227

227

227

227

226

226

226

225

225

226

226

226

225

225

225

225

224

224

224

224

225

226

225

225

225

224

225

227

6,992

226

13,870

Aug.

T5B" 226

225

225

224

224

224

223

222

222

222

222

221

222

*224

223

222

221

220

219

218

217

2T7

217

217

217

217

218

219

220

221

6,854

221

13,590

Sept.

222

223

225

TUT

225

224

224

223

2E2

221

224

221

221

224

223

221

221

221

221

221

221

221

221

221

219

217

2TT

217

217

217

6,634

221

13,160

Calendar year 1956; Max 229 Mln 0 Mean 171 Ac-ft 124,300

Water year 1956-57: Max 228 Mln 0 Mean 170 Ac-ft 123,300

f Discharge measurement made on this day.
460 SACRAMENTO RIVER BASIN

Canyon Creek below Bowman Lake, Calif.

Location (revised). Lat 39°26'20", long 120°39'40", in SE£ sec. 7, T. 18 N., R. 12 E., 

on left bank 1 mile downstream from Bowman Lake, 3 miles upstream from Texas Creek, 

and 9 miles south of Sierra City.

Drainage area. 30.4 sq mi.

Records available. January 1927 to September 1957.

Gage. Water-stage recorder and concrete control. Altitud of gage is 5,100 ft (from

topographic map).

Average discharge. 30 years, 39.9 cfs (28,890 acre-ft per year).

Extremes. Maximum discharge during year, 902 cfs May 27 (gage height, 4.71 ft); minimum 

daily, 0.1 cfs Oct. 1-6, July 27 to Sept. 16.

1927-57: Maximum discharge, 2,520 cfs Dec. 4, 1950 (gage height, 6.28 ft); no flow 

at times.

Remarks. Records good except those below 10 cfs which are fair. Plow regulated by 

Bowman Lake beginning in 1926 (see p. 458) and diversion into Bowman-Spaulding Canal 

(see preceding page). Bowman Lake receives water from Middle Yuba River through 

Milton-Bowman tunnel (see p. 451).

Revisions. WSP 1395: Drainage area.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

1.0

1.1

1.2 

1.4 

1.6

2.0 

4.3 

7.2

1.8

1.9

2.0 

2.2 

2.5

2.8 

3.4 

4.0 

4.7

125

290

520

895

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

~7T 0.1

.1

.1

.1

.1

.3

.4

.3

.9

2.3

.9

.5

.4

.4

.5

.3

*.3

.3

.3

.3

.3

.5

.5

.7

3.1

1.5

.9

.7

8.2 

?75

27.9

0.90

55

Nov.

1.4

1.4

1.4

1.6

1.8

1.8

1.6

1.5

1.2. 9

.8

.8

.7

.676"

.6

.6

.6

.7

1.0

.9

.9

.8

.8

.7

.7

.7

.7

.7

.7

29.2

0.97

58

Dec.

0.7

.7

.7

.9

1.3

.8

.7

.7

.7

.8

T78- 2.8

2.0

1.2

.8

.8

.7

.7

.6

.6

.6

.5

.5

.5

.5

.3

75

.3

.3

.3

.3

24.4

0.79

48

Jan.

~0.3

*.3

.3

.3

.3

.3

.3

.3

.3

.3

.5

3.9

T^

.9

.9

.8

.8

.8

1.5

.9

.7

.6

.6

.8

1.0

1.2

.8

.6

.6

1.4

23.9

0.77

47

Feb.

2.1

.8

.7

.8

.5

.4

74

.6

.5

.6

2.2

2.3

5.6

4.1

4.6

4.1

3.9

3.3

2.8

2.8

3.1

6.0

24

53

T9

22

7.3

4.8

-

182.3

6.51

362

Mar.

11

4.6

2.8

12

17

7.4

8.8

7.9

7.2

6.1

2.5

4.6

2.6

2.5

2.6

2.3

2.0

m2.1

2.9

3.2

2.1

2.0

2.1

2.1

2.1

2.3

2.9

3.8

3.3

2 9

140.1

4.52

278

Apr.

2.5

2.2

2.1

1.7

1.7

1.5

1.2

1.0

1.0

.9

.8

75

.8

7.1

KT

1.5

2.4

2.6

2.5

2.2

2.8

2.6

2.1

1.7

1.5

1.3

1.2

1.0

1.0

1.4

55.5

1.85

110

May

*0.9

37T

2.1

1.4

1.0

.9

.9

1.7

1.5

1.5

1.3

1.3

1.4

1.5

1.3

1.2

1.2

44

15

20

358

635

704

575

516

620

841

BIT

817

687

595

7,292.8

235

14,470

June

670

709

736 m552

*374

370

370

370

322

80

90

318

353

332

225

121

159

200

222

220

197

178

160

140

132

129

109

76

!§

8,655

288

17,170

July

25

rs

5.6

3.7

2.4

1.3

1.2

1.0

1.0

.9

.8

.7

.7

.7

.6

.6

.5

.5

.5

.4

.3

.3

.3

.2

.2

.2

.1

7T

.1

.1 

.1

63.1

2.04

125

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

*.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

.1

3.1

0.10

6.1

Sept.

~T0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.3

.2

.3

.3

.3

.3

.3

.3

.3

.5

.6

75

.4

6.2

0.21

12

Calendar year 1956: Max 1,040 Mln o Mean 86.4 Ac-ft 62,570

Water year 1956-57: Max 841 Mln 0.1 Mean 45.2 Ac-ft 32,740

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 461

South Yuba River near Washington, Calif.

Location.--Lat 39°21'38", long 120°46'14", on line between sees. 5 and 8, T. 17 N., 

R. 11 E., on left bank 800 ft upstream from unnamed tributary and 1.5 miles east of 

Washington.

Drainage area. 199 sq mi.

Records available.--March 1942 to September 1953, October 1956 to September 1957. Prior 

to October 1949 published as South Pork Yuba River near Washington.

Gage. Water-stage recorder. Altitude of gage is 2,785 ft (from river-profile map). 

Oct. 1, 1948, to Sept. 30, 1953, water-stage recorder at site 0.8 mile upstream at 

different datum.

Average discharge.--12 years (1942-53, 1957), 314 cfs (227,300 acre-ft per year).

Extremes. Maximum discharge during year, 10,100 cfs May 18 (gage height, 12.03 ft); minimum, 15 cfs Sept. 7-15.

1942-53, 1956-57: Maximum discharge, 24,700 cfs Nov. 20, 1950 (gage height, 

23.08 ft), from rating curve extended above 4,700 cfs on basis of slope-area determination of peak flow; minimum, 9.1 cfs Oct. 18, 1950.

Flood of Dec. 23, 1955, reached a stage of 17.8 ft, site and datum then In use, from 

floodmarks (discharge, 26,300 cfs, from slope-area measurement).

Revisions.--Figures of maximum discharge for the water years 1943 and 1951 have been 

revised to 14,200 cfs Jan. 21, 1943 (gage height, 13.8 ft), on basis of slope-area 

determination of peak flow of Dec. 23, 1955, and 24,700 cfs Nov. 20, 1950 (gage height, 

23.08 ft), from rating curve extended above 4,700 cfs on basis of revised discharge for 

slope-area determination of peak flow, superseding those published in WSP 1041 and 

1215, respectively.

Remarks.--Records good. Natural flow affected by Lake Spaulding beginning in 1912

(capacity, 74,500 acre-ft), Bowman Lake (see p. 458), Fordyce Lake beginning in 1926 

(capacity, 46,700 acre-ft), diversions into and out of basin for several powerhouses, 

and for irrigation of about 20,000 acres by the Nevada Irrigation District.

Revisions.--Revised figures of discharge, in cubic feet per second, for the water year 

1951, superseding those published in WSP 1215 are given herewith:

1950 

Nov. 18......... 9,06O

19......... 6,470

20......... 17,300

1950-Con. 

Nov. 21......... 10,200

Dec. 3......... 5,290

8. ........ 9,130

Month

Calendar year 195O.... 

Water year 1950-51....

Cfs-days

230,110 

200,509

Maximum

17,200 

17,200

Minimum

13 

14

Mean

630 

549

Runoff in 

acre-feet

456,300 

397,700

Rating table, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used July 5 to Sept. 30)

14 2.5 178 6.0 1,770 

20 3.0 280 8.0 3,700 

45 4.O 6OO 10.0 6,400 

100 5.0 1,110 

Discharge, in cubic feet per second, water year October 1956 to September 1957

1.1

1.2 

1.5 

2.0

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Tota]

Mean

Ac-ft

Oct.

19

18

18

18

18

17

18

23

20

24

52

29

24

22

20

20

19

19

19

19

18

18

35

29

26

45

62

39

32

261 

T36

1,137

36.7

2,260

Nov.

62

49

44

40

40

39

38

37

34

33

30

28

28

26

*25

26

26

26

24

24

24

24

24

24

24

26

27

25

25

24

926

30.9

1,840

Dec.

24

23

23

38

69

46

39

35

36

42

80

88

72

65

53

46

43

40

38

*37

34

33

33

32

31

30

29

29

29

28 

28

1,273

41.1

2,520

Calendar year 1956: Max -

Jan.

28

28

28

28

27

27

27

28

28

28

34

69

266

110

92

69

61

56

52

76

*57

55

52

51

50

46

45

44

43

40 

40

1,685

54.4

3,340

Feb.

43

42

39

39

37

35

43

93

76

66

72

146

222

198

178

176

167

149

131

125

174

234

715

1.990

*1,560

837

514

325

8,426

301

16,710

Mar.

254

256

222

377

1.210

705

539

427

525

390

345

523

393

345

405

375

328

 308

288

285

305

273

258

251

249

243

240

236

245

228 

214

11,242

363

22,300

Apr.

204

185

174

160

124

121

108

103

98

95

93

90

88

269

154

130

178

202

187

167

162

157

147

136

125

115

110

104

111

131

4,228

141

8,390

May

*155

285

429

462

900

1,190

960

798

379

529

350

164

249

315

230

436

793

5.250

3,530

1,480

945

1,180

1,180

1,030

1,170

1,280

1,990

2,370

2,120

2,070 

2,040

36,239

1,169

71,880

June

2.230

2,220

1,930

1,800

1,870

1,600

1,100

1,080

954

726

333

315

411

420

393

310

196

208

240

256

256

226

210

187

178

165

164

165

146

86

20,375

679

40,410

July

64

49

40

34

33

30

30

30

29

28

27

27

27

25

24

24

22

21

20

20

19

19

19

19

19

18

IB

18

20

18 

18

809

26.1

1,600

Aug.

18

18

18

17

17

17

17

17

17

17

17

17

17

17

17

17

16

T6

16

16

*16

16

16

16

16

16

16

16

16

16 

16

515

16.6

1,020

Sept.

16

16

16

16

16

16

15

15

15

15

15

15

15

15

15

16

17

18

17

17

16

16

15

15

16

16

18

25

19

23

495

16.5

982

Min - Mean - Ac-ft -

Water year 1956-57: Max 5,230 Min 15 Mean 239 Ac-ft 173,300

Discharge measurement made on this day.
462 SACRAMENTO RIVER BASIN

Yuba River at Englebright Dam, Calif.

Location. Lat 39°14'22", long 121°16'00", in SW^SE^ sec. 14, T. 16 N., R. 6 E., on left 

bank upstream from spillway of Englebright Dam, 1 mile upstream from Deer Creek and 

2.5 miles northeast of Smartville.

Drainage area. 1,104 sq mi.

Records available. October 1941 to September 1957. Prior to October 1953, published as 

"at Narrows Dam." If record for Deer Creek near Smartville since 1941 is added to 

record at this site, a record equivalent to that published from 1903 to 1941 as Yuba 

River at Smartville can be obtained.

Gage. Water-stage recorder, flow meter in penstock and watt meters in powerhouse just 

below dam. Datum of gage is 526.99 ft above mean sea level (levels by Corps of 

Engineers).

Average discharge. 16 years, 2,632 cfs (1,905,000 acre-ft per year).

Extremes. Maximum discharge during year, 48,600 cfs May 18, including flow through 

powerhouse, from rating curve extended above 25,000 cfs as explained below; minimum 

daily, 322 cfs Oct. 30.

1941-57: Maximum discharge, 148,000 cfs Dec. 23, 1955, including flow through 

powerhouse, from rating curve extended above 25,000 cfs on basis of computation of 

peak flow over spillway of dam; no flow Nov. 8 to Dec. 2, 1941, Jan. 23-27, 1949, 

Oct. 6, 1955, water being stored at dam.

Remarks. Records good. Diversions for power and irrigation above station. Up to 

250 cfs can bypass station and up to 670 cfs can be diverted into Bear River basin. 

Flow regulated by Lake Spaulding beginning in 1912 (capacity. 74,500 acre-ft), Englebright Reservoir beginning in 1941 '(capacity, 70,000 acre-ft), Bowman Lake (see 

p. 458), Fordyce Lake beginning in 1926 (capacity, 46,700 acre-ft), and many smaller 

reservoirs. Records given herein show total flow over Englebright Dam spillway and 

through and past powerplant.

Cooperation. Records C0~. of flow through powerplant furnished by Pacific Gas and Electric 

Revisions. WSP 1445: Drainage area.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

325

325

325

325

436

625

620

620

620

620

620

616

625

620

620

610

610

610

605

600

595

590

590

590

585

578

565

555

437

322

560

16,944

547

33,610

Nov.

570

570

570

580

580

590

590

605

618

620

610

600

600

600

605

605

610

568

610

600

600

600

597

615

620

620

620

620

620

618

18,031

601

35,760

Dec.

602

605

610

615

615

620

620

620

620

620

618

615

610

613

582

620

615

615

615

615

617

620

615

615

615

610

605

600

600

595

595

18,952

611

37,590

Jan.

590

590

590

586

580

550

540

540

540

540

536

530

515

560

560

565

565

566

570

575

595

590

585

585

590

610

615

610

605

600

600

17,773

573

35,250

Feb.

611

620

620

620

620

620

620

635

602

635

635

635

645

648

656

670

670

670

675

680

660

660

5,700

22,900

26.200

14,800

12,700

7,940

-

104,347

3,727

207,000

Mar.

5,960

5,070

4,800

5,790

15.700

13,300

9,270

9,010

7,040

5,840

4,920

6,080

5,740

4,740

5,120

5,510

4,500

3,900

3,540

3,240

3,360

3,030

2,900

2,640

2,500

2,430

2.540

2,360

2,590

2*750

156,960

5,065

511,500

Apr.

2,800

2,470

2,530

2,350

2,370

2,450

2,400

2,310

2,270

2,300

2,350

2,250

2.140

5,560

3,800

2,940

5,180

5.860

5,450

3,120

2,900

2,820

2,800

2,740

2,640

2,520

2,500

2,540

2,720

2, 900

81,740

2,725

162,100

May

*3,020

3,750

5,660

5,110

5,610

4,420

4,340

4,140

3,820

3,260

3,280

2,680

2,640

2,720

2,540

2.440

2,920

17,000

27.400

14,200

9,370

8,510

7,290

6,440

5,S60

5,900

6,490

7,350

7,100

6,490

6, 260

191,770

6,186

380,400

June

6,560

6.850

6,040

5,590

5,570

5,210

4,360

3,920

3,700

5,280

2,720

2,420

2,540

2,540

2,120

1,940

1,720

1,570

1,560

1,560

1,540

1,490

1,420

1,550

1,510

1,260

1,200

1,170

1,140

1,080

84,110

2,804

166,800

July

1.000

945

890

850

810

780

751

716

712

710

710

712

580

670

710

700

680

680

680

680

680

680

680

680

680

685

641

649

690

685

685

22,581

722

44,590

Aug.

690

685

680

670

670

670

665

665

670

670

650

670

670

665

665

665

660

650

650

593

495

475

464

475

470

555

630

570

460

764

470

18,777

606

37,240

Sept.

470

470

470

470

480

490

490

490

485

485

485

485

486

485

472

500

505

515

510

510

510

508

515

525

550

474

418

435

455

440

14,545

485

28,850

Calendar year 1956: Max 34,100 Min 307 Mean 3,281 Ac-ft 2,382,000

Water year 1956-57: Max 27,400 Mln 322 lean 2,045 Ac-ft 1,480,000

Peak discharge (base, 7,100 cfs). Feb. 24 (10:30 p.m.) 41,900 cfs; Mar. 5 (12 p.m.) 16,100 cfs; 

Mar. 12 (2 p.m.) 7.110 cfs; May 18 (ll p.m.) 48,600 cfs; May 29 (8 a.m.) 7,650 cfs.________

Discharge raeas ent made on this day.
SACRAMENTO RIVER BASIN 463

Deer Creek near Smartville, Calif.

Location. Lat 39°13'28", long 121 "16 "03", in SWiSE^ sec. 23, T. 16 N., R. 6 E. , on left 

bank 400 ft upstream from county road bridge, 1 mile upstream from mouth, and 2 miles 

northeast of Smartville.

Drainage area. --84. 6 sq mi.

Records available . June 1935 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 500 ft (from topographic map). June 21, 

T935, to Nov. 30, 1938, staff gage at same site and datum.

Average discharge. 82 years, 144 cfs (104,300 acre-ft per year).

Extremes . --Maximum discharge during year, 4,410 cfs May 18 (gage height, 9.05 ft); minimum, 3.8 cfs Sept. 23.

1935-57: Maximum discharge, 11,300 cfs Mar. 9, 1943, Dec. 23, 1955, from rating 

curve extended above 5,200 cfs by logarithmic plotting; maximum gage height, 13.62 ft 

Mar. 9, 1943; minimum discharge, 0.1 cfs Aug. 4-6, 15, 1940.

Remarks . Records good. Natural flow of stream is affected by Scotts Plat Reservoir 

beginning in 1949 (usable capacity, 26,300 acre-ft), Deer Creek Reservoir (capacity, 

1,400 acre-ft), power developments, and diversions for irrigation. At times, water 

from South Yuba River is diverted into Deer Creek and water from Deer Creek is diverted 

to Bear River.

Revisions. WSP 1395: Drainage area.

Hating tables, water year 1956-57 (gage height, In feet, and discharge. 

In cubic feet per second)

Oct. 1 to May 18 May 19 to Sept. 30

1.3

1.4 

1.6 

2.0 

2.5 

3.0

6.6

10

23

56

110

176

3.5 

4.0 

4.5 

5.0 

6.0 

7.0

259

379

530

735

1,360

2,240

1.0

1.1

1.2

1.3 

1.5 

1.7 

2.0

3.5

61

2.5 

3.0 

3.5 

4.0 

4.5 

5.0 

6.0

117

179

259

379

530

735

1,360

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

13

13

13

14

13

14

14

17

12

12

39

27

17

15

13

18

21

17 

20

15

12

11

3U

34

11

12

21

12

12

302 

TTTT J.16

910

29.4

1,800

Nov.

89

47

29

22

20

19

18

17

16

15

13

13

13

13

13

13

12

12 

10

9.3

9.7

9.7

*9.3

9.7

8.9

372" 8.2

8.9

8.6

8.9

499.4

16.6

991

Dec.

11

9.3

IT"8.9

80

44

29

22

20

20

20

20

26

30

26

25

24

23 

20

19

21

18

15

15

15

15

16

17

17

20

21

681.2

22.0

1,350

Jan.

20

19

19

17

17

20

21

21

19

13

13

44

450

114

56

41

32

26 

24

570

110

56

44

40

36

32

28

25

24

23

22

1,996

64.4

3,960

Feb.

*22

33

25

23

22

20

?S

245

101

57

60

45

42

38

34

32

30

29 

26

26

277

247

926

1,630

539

610

256

147

5,564

199

11,040

Mar.

*125

96

139

494

805

305

179

216

281

219

204

348

270

217

465

391

249

202 

173

151

142

123

111

102

102

95

 55 83

114

159

172

6,815

220

13,520

Apr.

*186

169

169

166

155

136

51

38

27

18

24

32

77

262

166

144

277

382 

2TI

179

168

149

147

143

138

138

132

116

111

118

4,229

141

8,390

May

121

230

159

128

118

114

TIT

127

135

148

132

127

126

142

131

118

130

1.810 

1,366

758

565

435

376

303

259

241

220

200

180

174

158

9,282

299

18,410

June

140

T34

*124

113

107

95

82

69

66

68

64

60

56

53

50

46

42

37 

22

14

13

12

13

12

11

8.8

5TT

10

9.1

9.1

1,549.1

51.6

3,070

July

*8.8

8.2

8.2

8.0

8.2

7.7

8.8

 B^J 9.1

8.5

8.0

8.5

8.2

7.4

7.7

6.6

6.2

6.0 

*6.0

6.2

6.6

6.6

C.2

6.0

5.5

5.5

5.4

S7T

6.4

6.2

5.5

219.6

7.08

436

Aug.

5.2

5T4

5.5

5.5

5.8

5.8

6.0

6.2

6.0

5.6

5.6

6.0

6.0

6.2

6.2

6.0

6.0

6.2 

5.8

5.8

6.4

6.4

 5TS 6.8

6.6

6.4

5.8

5.6

5.6

6.0

6.4

185.4

5.98

368

Sept.

6.8

6.6

6.6

6.6

6.2

6.4

6.6

6.2

6.6

6.2

5.6

4.5

4.5

4.5

5.5

4.9

4.9

5.2 

5.2

4.9

4.6

4.0

4TT

4.1

4.4

4.0

22

25

TF

16

218.7

7.29

434

Calendar year 1956: Max 3,910 Mln 3.8 Mean 166 Ac-ft 120,200

Water year 1956-57: Max 1,810 Mln 4.0 Mean 88.1 Ac-ft 63,770

Peak discharge (base, 3,50O cfs). Hay IS (6;50 p.m.) 4,410 cfs (9.05 ft). 

* Discharge measurement made on this day.
464 SACRAMENTO RIVER BASIN

Dry Creek near Brownsville, Calif.

Location. Lat 39°28'40", long 121°15'15", In Nw£ sec. 25, T. 19 N., R. 6 E., on left 

bank 0.2 mile downstream from New York Creek and 0.9 mile northeast of Brownsville.

Drainage area.--20.4 sq ml.

Records available. October 1948 to September 1957.

Gage.--Water-stage recorder. Altitude of gage Is 2,220 ft (from topographic map).

Average discharge. 9 years, 37.3 cfs (27,000 acre-ft per year).

Extremes. Maximum discharge during year, 935 cfs Feb. 24, May 18 (gage height, 5.60 ft); 

minimum, 3.4 cfs Sept. 6.

1948-57: Maximum discharge, 1,890 cfs Dec. 22, 1955 (gage height, 7.48 ft), from 

rating curve extended above 920 cfs; minimum, 0.3 cfs Aug. 24, 1950.

Remarks.--Records good. Ho large diversion above station. 

Revisions. WSP 1395: Drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

1.1

1.2

1.3

1.4

1.7

Oct. 1 to May 18

4.4

5.2

6.8

10

May 19 to Sept. 30

24

2.0 

2.5 

3.0

4.0 

5.0

158

344

685

1.1

1.2

3.4 

4.9

1.3

1.4

7.0

10

Note. Same as preceding 

table above 1.4 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

?2

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

5.0

^0

5.0

5.2

5.5

5.4

5.2

5.5

5.5

6.3

9.0

6.5

6.3

6.0

5.8

5.7

5.7

5.7

5.7

5.7

5.7

5.7

10

*7.5

6.5

15

11

7.5

7.9

H

320.5

10.3

636

Nov.

14

12

10

9.0

8.6

8.2

7.9

7.5

7.2

7.2

6.8

6.8

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.5 6~7^

6.5

*6.5

6.5

6.5

6,5

223.3

7.44

443

Dec.

6.5

6.6

6.8

20

i?

13

10

9.7

9.3

9.3

9.7

9.3

9.3

9.3

9.0

8.6

8.6

8.6

8.6

*8.2

8.2

8.2

7.9

7.2

6.8

6.6

6.6

6.6

6.6

6.8

6.6

277.5

8.95

550

Jan.

£4BT5

6.8

6.8

7.2

7.2

6.8

9.0

7.9

7.5

14

48

~5z 135

29

19

16

13

13

78

37

23

18

17

16

14

12

12

10

10

*9.7

667.9

21.5

1,320

Feb.

10

13

10

10

9.3

9.7

17

46

32

21

18

16

17

14

13

12

11

11

11

13

71

79

303

615

515

178

100

*62

-

1,937

69.2

3,840

Mar.

54

46

76

176

226

*125

78

62

76

53

47

74

57

47

104

87

59

50

43

39

35

33

30

29

28

27

26

24

3T

35

41

1,920

61.9

3,810

Apr.

36

28

25

*23

23

22

21

21

20

20

19

IS

19

99

36

33

71

78

50

40

36

32

29

27

25

24

23

22

21

21

963

32.1

1,910

May

21

45

26

22

21

20

20

25

31

31

24

22

22

31

26

23

22

485 255-

108

79

*62

51

47

43

36

34

32

30

29

27

1,720

55.5

3,410

June

27

5¥

22

23

21

20

20

20

20

20

18

*18

18

.18

17

16

15

15

14

13

13

13

12

12

11

11

10

10

9.6 a~£

y . D

490.2

16.3

972

July

9.6

¥^

9.2

8.9

8.5

8.2

.9

.9

.6

.3

.0

.0

.0

.8

.8

.6

.3

* .3!s

.1

5.9

5.9

5.9

5.7

5.5

5.7

5.5

5.5

5.3

4 * q j

47?

211.6

6.83

420

Aug.

.9

.9

.7

.7

.7

.9

.9

.9

.9

.9

.5

.4

.4

.4

* .5

.4

.2

.2

.0

.0

3.9

3.9

3.9

3.8 STS"

3.8

3.9

3.9

3.9

4.0

4.0

134.2

4.33

266

Sept.

4.0

3.9

3.9

3.9

3.8

3.6

57S

3.6

3.8

3.8

3.8

5.8

3.9

3.9

3.9

3.9

4.0

4.2

4.0

4.0

4.0

4.0

3.8

3.8

3.8

3.9

T?" 22

7.0

5 9

147.5

4.92

293

Calendar year 1956: Max 916 Mln 4.9 Mean 49.9 Ac-ft 36,240

Water year 1956-57: Max 615 Mln 3.6 Mean 24.7 Ac-ft 17,870

Peak discharge (base, 270 cfa).~Feb. 24 (5 p.m.) 935 cfs (5.60 ft); Mar. 5 (1:30 a.m.) 427 cfs 

(4.29 ft); May 18 (4 p.m.) 935 efs (5.60 ft)._________________________________________

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 465

Dry Creek at Virginia Ranch, Calif.

Location.--Lat 39°19'20", long 121°18'45", in NWi sec. 21, T. 17 N., R. 6 E., on right 

bank 0.4 mile south of Virginia Ranch, 3.0 miles downstream from Willow Glen Creek, 

and 5.5 miles east of Loma Rica.

Drainage area. 71.3 sq mi.

Records available. October 1948 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,060 ft (from topographic map).

Average discharge.--9 years, 115 cfs (83,260 acre-ft per year).

Extremes. Maximum discharge during year, 5,820 cfs May 18 (gage height, 8.46 ft), from 

rating curve extended above 1,700 cfs as explained below: minimum, 2.8 cfs Sept. 2,3.

1948-57: Maximum discharge, 9,120 cfs Dec. 22, 1955 (gage height, 9.85 ft), from 

rating curve extended above 1,700 cfs on basis of slope-area determination at gage 

height 9.15 ft; minimum, 0.4 cfs Nov. 6, 1949.

Remarks. Records good. Medium and low flows partly regulated by Lake Mildred (capacity, 

1,500 acre-ft). Several diversions above station for irrigation.

Revisions.--WSP 1395: Drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and 

discharge, In cubic feet per second)

Oct. 1 to May 18 May 19 to Sept. 30

2.4

5.9

12

33

56

3.0 

3.5 

4.0 

5.0 

5.0 

7.0

174

304

480

970

1,780

3,040

0.9 

1.0 

1.2 

1.4 

1.6

1.9

3.3

7.6

13

21

1.9 

2.2 

2.5

3.0

36

58

90

174

Note. Same as preceding table above 3.0 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Da.y

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Tota:

Mean

Ac-ft

Oct.

5.1

4.9

4.9

4.9

4.7

4.7

4.5

4.5

4.4

4.4

4.9

4.4

4.2

4.2

4.0

4.0

4.0

4.0

4.2

4.0

4.0

3.8

3.8

3.7

3.5

4.2

4.5

3.8

3.8

24

T£

164

5.29

325

Nov.

11

10

IS

15

15

15

15

15

15

15

15

14

15

14

15

14

14

14

14

14

14

14

14

14

14

14

 14

14

14

14

419

14.0

831

Dec.

14

14

13

15

T5

14

14

14

13

13

13

13

13

13

12

12

12

12

12

12

11

IT

11

11

11

11

11

11

11

11 

11

384

12.4

762

Jan.

11

IT

12

12

12

11

12

12

11

11

12

18

81

36

33

41

31

26

24

382

126

54

38

32

 29

26

23

21

20

19 

19

1,206

38.9

2,390

Feb.

18

19

19

18

11

14

16

92

73

42

32

28

30

29

25

25

23

22

22

22

275

366

1,120

2.210

726

683

377

194

6,525

233

12,940

Mar.

 156

116

164

740

8 SO

413

215

160

206

136

109

208

145

115

300

277

156

118

102

85

77

68

62

53

47

45

41

39

4T

75 

81

5,433

175

10,780

Apr.

85

53

40

32

12

14

9.2

7.7

69

64

29

6.6

6.2

212 

83

56

194

301

IB?

106

85

72

59

52

46

41

38

35

32

31

2,022.7

67.4

4,010

May

31

65

 48

34

30

28

26

28

41

53

40

35

33

40

40

31

28

1.870

743

326

213

145

112

90

79

70

61

40

10

1F~7.9

4,415.9

142

8,760

June

41

35

36

34

32

30

30

29

28

30

26

25

23

22

22

21

19

18

17

16

18

16

11

10

9.7

9.2

8.9

8.7

8.7

8.4

645.6

21.5

1,280

July

8.4

7.6

6.9

6.7

6.2

6.0

16

T5

15

15

14

11

11

11

9.7

9.4

8.9

8.7

 8.7

8.4

8.2

7.2

5T4" 4.5

5.1

5.1

5.1

5.1

5.1

4.9 

5.1

264.4

8.53

524

Aug.

5.1

5.1

5.1

5.1

5.4

5.4

5.1

4.7

4.7

4.5

4.5

4.5

4.5

4.3

4.3

4.3

4.3

4.1

4.1

4.1

4.3

4.1

4.1

4.1

4.1

4.3

4.1

3T9" 3.9

4.1 

4.3

138.5

4.47

275

Sept.

3.7

3.1

37T

3.9

4.3

4.1

3.9

3.9

3.7

3.7

3.7

3.7

3.7

3.9

3.7

3.7

3.7

3.7

3.3

3.3

3.3

3.1

3.1

3.1

3.3

3.3

7.6

tt

3.7

3.3

112.7

3.76

224

Calendar year 1956: Max 4,560 Mln 3.5 Mean 136 Ac-ft 98,430

Water year 1956-57: Max 2,210 Mln 3.1 Mean 59.5 Ac-ft 43,100

Peak discharge (base, 1,900 cfs). Feb. 24 (3 p.m.) 4,100 cfs (7.62 ft); May 18 (4 p.m.) 5,820 cfs 

(8.46 ft)._________________________

* Discharge measurement made on this day.
466 SACRAMENTO RIVER BASIN

Yuba River at Marysville, Calif.

Location.-- La t 39°08'25", long 121°34'35", on left bank 800 ft downstream from Simpson 

Lane Bridge in Marysville, Yuba County, and 2 miles upstream from mouth. Prior to 

Oct. 1, 1956, at site 800 ft upstream.

Drainage area.- -1.340 sq mi.

Records available . --October 1940 to September 1957 (1940-43, 1945, low-water periods 

only) in reports of Geological Survey. 1939-57 (1939-43, 1945, low-water periods 

only) in reports of California Department of Water Resources.

Gage . Water- stage recorder. Gage is set to datum of Corps of Engineers. Prior to 

Wit. 1, 1956, at site 800 ft upstream at same datum.

Average discharge. --13 years (1943-44, 1945-57), 2,696 cfs (1,952,000 acre-ft per year).

Extremes. Maximum daily discharge during year, 30,000 cfs May 19; maximum gage height, 

64,43 ft Feb. 25; minimum discharge, 158 cfs Aug. 24.

1943-44, 1945-57: Maximum daily discharge, 136,000 cfs Dec. 23, 1955; maximum 

gage height, 82.5 ft Dec. 23, 1955.

1940-57: Minimum discharge recorded, 34 cfs Oct. 17, 1949.

Remarks . --Records good except those for periods of backwater and no gage-height record, 

which are fair. Flow regulated by several reservoirs above station. Many diversions 

above station for power. Diversions for irrigation of about 13,000 acres between 

stations at Englebright Dam and at Marysville. Records of chemical analyses for the 

water year 1957 are published in WSP 1523.

Cooperation. --Records collected and prepared in cooperation with California Department of 

water Resources .

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21"2

.3

24 

25

26

27

28

29

50

31

Total

Mean

Ac-ft

Oct.

220

220

220

220

220

260

450

450

*430

430

430

430

430

425

435

420

415

405

380

374

362

368

374

428 

416

422

440

428

410 

360

740

11,962

386

23,730

Nov.

560

554

542

566

566

584

596" 596

590

584

572

566

548

*556

542

542

536

524

518

536

542

536

518

506 556"

506

512

512

518 

524

16,338

545

52,410

Dec.

524

524

518

542

590

614

554

572

560

548

*542

560

566

578

542

548

560

560

560

560

566

560

554

554 

554

554

554

554

548 

548

548

17,246

556

34,210

Jan.

560

548

556

536

518

518

584

*668

662

650

668

698

1,110

1,030

794

758

728

716

716

1,610

1,190

904

780

760 

750

770

760

740

730

720

720

23,432

756

46,480

Feb.

720

746

746

740

734

734

758

904

976

832

800

764

*782

782

783

770

776

776

770

776

cl,500

1,800

6,000

c 28, OOP 

*c27,000

15,000

11,000

8,000

-

113,968

4,070

226,100

Calendar year 1956; Max 47,100 Min 220

Mar.

5,600

5,400

7,000

10,000

16,000

14,000

11,000

10,000

8,650

7,910

6,300

*6,570

7,090

5,800

5,480

6,660

5,430

4,710

4,270

3,960

3,830

3,650

3,420

3,170 

3,010

2,920

2,820

2,750

2,830

3,640

3,160

186,970

6,031

370,800

Apr.

3,280

3,OOO

2,790

2,720

2,710

2,710

2,660

2,510

*2,380

2,420

2,410

2,35O

2.270

3,040

4,140

3,150

3,190

4,120

3,680

3,280

3,010

2,890

2,850

2,760 

2,660

2,520

2,420

2,410

2,490

2,600

85,400

2,847

169,400

May

2,660

3,010

3,390

2,850

2,930

3,450

3,590

3,500

3,300

2,950

2,940

2,520

2,410

*2,440

2,410

2.190

2,390

7,320

c50,000

23,900

13,800

10,200

' 8,360

7,160 

6,290

6,150

6,080

6,740

6,800

6,120

5,960

193,800

6,252

384,400

June

6,050

6.320

5,730

5,310

5,230

5,020

4,700

4,020

3,710

3,470

*2,800

2,390

2,220

2,170

2,210

2,010

1,760

1,520

1,430

1,400

1,330

1,230

1,190

1,110 

1,020

980

950

900

820

750

79,800

2,660

158,300

July

5eo~ 660

500

460

400

360

330

310

3OO

290

290

290

290

2"70 240

*280

290

280

280

277

274

274

267

270 

270

264

270

267

277

284

270

9,964

321

19,760

Aug.

267

274

270

270

267

267

267

280

280

274

270

258

*258

252

277

264

270

270

270

274

237

195

189

168 

ISS

178

231

274

334

204

195

7,652

247

15,180

Mean 3,527 Ac-ft 2,560,000

Sept.

210

216

219

225

225

228

243

270

270

277

252

228

240

240

258

261

*280

294

302

312

319

319

312

320 

535

525

275

280

270

260

8,065

269

16,000

Water year 1956-57: Max 30,000 Min 168 Mean 2,067 Ac-ft 1,497,000

* Discharge measurement made on this day.

c Backwater from Feather River.

Note.--No gage-height record Oct. 1-18, 50, 51, Jan. 23 to Feb. 1, Feb. 22, 23, Feb. 26 to Mar. 7, 

May 8, 9, June 26 to July 19, Sept. 24-30; discharge estimated on basis of 3 discharge measurements, 

weather records, and the summation of flows for upstream stations.
SACRAMENTO RIVER BASIN 467

Bear River near Auburn, Calif.

Location. Lat 39°00'45", long 121°06'10", In NEij sec. 5, T. 13 N., R. 8 E., on right 

bank 300 ft upstream from bridge on State Highway 49, 2.6 miles upstream from Wolf 

Creek, and 8 miles north of Auburn.

Drainage area. 140 sq mi.

Records available. December 1940 to September 1957 in reports of Geological Survey. 

1922, 1925-28, 1929-33 (gage heights for high-water periods only), in reports of 

California Department of Water Resources.

Gage.--Water-stage recorder. Altitude of gage Is 1,250 ft (from topographic map). Prior 

To July 13, 1946, at datum 3.40 ft higher.

Average discharge . 16 years (1941-57), 301 cfs (217,900 acre-ft per year).

Extremes. Maximum discharge during year, 8,470 cfs May 18 (gage height, 12.30 ft), from 

rating curve extended above 4,600 cfs as explained below; minimum daily, 3.3 cfs 

Oct. 4 9 22 29.

1940-57: Maximum discharge, 19,700 cfs Dec. 22, 1955 (gage height, 16.56 ft), from 

rating curve extended above 4,600 cfs by logarithmic plotting and on basis of computed 

flow over Van Giesen Dam, 3 miles upstream from station; minimum, 0.1 cfs Nov. 9, 10, 

1953.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Natural flow of stream affected by inflow from Yuba River and American River basins, 

storage reservoirs including Lake Combie (capacity, 7,840 acre-ft), power developments, 

and diversions for irrigation.

Revisions (water years). WSP 981: Drainage area. WSP1215: 1943(M).

Rating tables, water year 1956-57 (gage height, in feet, an<i

discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1-30)

Oct. 1 to May 18 May 19 to Sept. 30

3.3

3.4

3.5 

3.7 

4.0 

4.3

2.0

4.2

9.0

23

50

86

5.0 

5.5 

6.0 

7.0 

8.0 

9.0

242

440

705

1,350

2,160

3,170

2.9

4.2

6.1

9.3

14

28

4.0 

4.3 

4.6 

5.0 

5.5

62

102

158

257

440

10.0 4,380

Note. Same as preceding table above 5.5 ft.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

3.8

4.0

3.8

375- 3.3

4.0

4.2

3.5

3.3

3.8

4.0

4.0

3.8

4.0

4.0

3.8

4.0

4.0

4.2

4.0

3.8

3.3

4.0

3.8

4.0

4.2

5.2

5.2

3.3

335

545

993.8

32.1

1,970

Nov.

TSs- 202

132

105

111

111

87

81

121

127

87

40

47

61

*77

a 60

> a40

27 aro

2,251

75.0

4,460

Dec.

330

25

26

26

43

*152

67

48

47

53

177

68

39

40

41

39

39

34

33

30

*48

46

26

26

27

28

30

29

27

50

201

1,601

51.6

3,180

Jan.

198

97

196

42

28

29

26

29

-ss 25

28

29

249

-57 348

50

41

33

33

168

*164

54

34

32

32

32

32

33

33

34

34

2,276

73.4

4,510

Feb.

3g- 35

36

36

36

36

37

41

45

85

96

81

52

39

36

36

36

36

36

36

54

303

786

2,270

*2.820

1,290

952

634

-

10,016

358

19,870

Mar.

505

328

308 6"5o"

2.270

1,930

1,240

984

1,250

933

741

964

939

795

958

1,180

891

*1,080

1,080

1,000

990

927

915

873

867

843

825

795

741

777

765

29,374

948

58,260

Apr.

867

SIS

807

759

678

628

595

520

530

540

411

101

73

3T9

258

161

332

622

460

328

266

220

169

138

141

102

114

77

86

103

11,224

374

22,260

May

120

281

*320

223

149

101

149

141

229

220

185

177

166

193

174

149

138

2,680

3.360

1,960

1,490

1,220

984

771

590

540

525

413

395

344

320

18,707

603

37.10O

June

'265 287

249

222

200

200

193

181

163

170

156

148

137

38

28

a20

a!6

a!2

*9.0

5.7

5.0

5.7

6.4

5.5

5.5

5.2

4.2

472

4.4

5.2

2,746.0

91.5

5,450

July

4.4

3.8

3.8

3.7

STY

4.2

4.8

5.0

ITS

3.9

4.1

4.2

4.2

4.2

4.2

4.2

4.4

4.4

4.6

4.6

4.8

4.8

5.0

5.0

5.0

4.8

4.6

4.4

4.4

3 9 

4!2

136.1

4.39

270

Aug.

4.4

4.6

4.6

5.0

4.6

4.6

4.2

4.4

4.6

4.2

4.4

4.2

4.2

4.4

4.8

4.2

4.9

-5.3 11

4.4

4.2

4.4

4.4

4.6

4.8

4.8

4.2

3.8

3.8

3.8

5.7

146.5

4.73

291

Sept.

3.7

3.8

4.6

4.2

4.1

4.1

3.9

3.9

3.7

3.7

*3.7

yTg- 3.6

3.6

3.6

3.7

3.7

3.8

5.0

377

3.6

3.6

3.6

3.6

3.6

3.7

4.8

4.1

3.8

3.8

115.9

3.86

230

Calendar year 1956: Max 6,160 Mln 2.7 Mean 349 Ac-ft 253,700

Water year 1956-57: Max 3,360 Mln 3.3 Mean 218 Ac-ft 157,900

Peak discharge (base, 3,700 cfs). Feb. 24 (11 p.m.) 5,200 cfa (10.57 ft); May 18 (9 p.m.)

8,470 cfa (12.30 ft). _____________________________________________________________

* Discharge measurement made on this day.

a Ho gage-height record} discharge estimated on basis of recorded range in stage, records for 

North Fork American River at North Fork Dam, or interpolation.

510529 O - 59 - 31
468 SACRAMENTO RIVER BASIN

Bear River near Wheatland, Calif.

Location.--Lat 39c OOi01", long 121°24'20", in sec. 3, T. 13 N., R. 5 E., in midstream on 

downstream side of bridge on U. S. Highway 99E, 1 mile southeast of Wheatland and 

6.5 miles downstream from Rook Creek.

Drainage area. 295 sq mi.

Records available. October 1928 to September 1957.

Gage. Water-stage recorder. Datum of gage is 78.92 ft above mean sea level (levels by 

California Department of Water Resources). Prior to July 17, 1929, staff gage at 

about same site at datum 2.58 ft higher. July 17, 1929, to Oct. 22, 1943, waterstage recorder at several sites within 300 ft of present site at datum 2.58 ft higher.

Average discharge.--28 years (1929-57), 439 cfs (317,800 acre-ft per year).

Extremes. Maximum discharge during year, 11,200 cfs May 18 (gage height, 12.11 ft); 

minimum, 1.0 cfs Aug. 14.

1928-57: Maximum discharge, 33,000 cfs Dec. 22, 1955 (gage height, 19.30 ft); 

maximum gage height, 20.83 ft Nov. 21, 1950; no flow Sept. 18-25, 1939, Sept. 5, 1949, 

Apr. 8-10, 1955.

Remarks.--Records good. Medium and low flows affected by Camp Par West Reservoir

[capacity, 5,000 acre-ft), Combie Reservoir (capacity, 7,840 acre-ft), diversions for 

irrigation, and return flow from irrigated areas between stations near Auburn and near 

Wheatland. See Remarks for station near Auburn.

Rating tables, water year 1956-57 (gage height, In feet, and discharge. 

In cubic feet per second)

Oct. 1 to May 18 May 19 to Sept. 3O

1.5

1.6

1.7

1.8 

2.0 

2.3

5.0

11

20

34

71

145

2.7 

3.2 

4.0 

6.0 

9.0

285

515

1,000

2,760

6,390

1.2

1.3

1.4

1.5

1.6

1.7

1.7

3.3

5.6

8.8

13.5

20

1.8 

2.0 

2.3 

2.7 

3.2 

4.0

30

61

130

260

500

1,000

Note. Same as preceding 

table above 4.0 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

?2

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Cale

Oct.

14

12

9^5

97S

14

19

27

31

31

31

49

145

145

123

91

59

41

34

34 

39

30

24

27

*65

44

39

53

59

48

300

716

2,363.0

76.2

4,690

Nov.

325

257

210

166

154

151

142

123

134

163

148

108

73

93

108

116

116

113

110 

91

98

96

*93

67

82

75

78

78

71

63^

3,692

123

7,320

Dec.

57

42

39

IT

118

242

TsT

110

93

93

174

160

98

78

78

78

75

73

73 

*69

69

93

71

63

65

61

61

61

63

61

168

2,818

90.9

5,590

Jan.

257

137

222

134

73

63~ 61

67

73

69

69

96

476

578

2T5

145

118

93

84 

522

481

206

129

106

103

100

91

84

80

*75

5,115

165

10,150

Feb.

75

82

84

75

71

69

71

235

261

172

178

166

132

100

86

80

82

78

73 

18

27

221

1,470

3,600

*5,220

2,480

1,820

1,010

-

18,036

644

35,770

Mar.

842

636

537

1,370

*5,940

3,340

1,860

1,260

1,550

1,180

895

1,060

1,120

923

1,170

1,710

1,130

1,080

1,130 

1,040

986

930

895

860

842

830

830

788

734

788

752

37,008

1,194

73,400

Apr.

888

830

758

770

704

*652

620

559

537

548

505

374

348

348

356

195

59

533

752 

564

465

402

348

281

242

203

172

172

140

148

13,473

449

26,720

May

178

277

445

321

242

186

*157

19T

228

289

249

228

217

224

245

192

178

2,670

6,280 

3,020

2,280

1,520

1,160 '924

735

615

5S1

511

445

420

246

25,435

820

50,450

June

39

12

133

218

197

175

172

169

166

157

136

125

*112

58

34

19

15

14

11 

6.9

5.4

4.6 473"

4.8

4.6

4.6

7.5

5.4

5.4

7.5

2,023.3

67.4

4,010

July

5.6

7.5

7.5

15

U

4.8

5.4

4.6

7.4

7.2

4.8

4.8

*5.6

4.6

4.8

3.9

4.8

4.1

4.1 

4.6

5.6

5.6

5.4

3.7

5.5

5.5

5.9

5.4

5.6

4.4

5.9

174.4

5.65

546

Aug.

3.9

3.9

4.6

5.1

2.9

4.1

5.7

5.9

5.5

2.8

2.8

*2.8

2.2

1.8

273

2.2

2.3

5.7

2.3 

2.4

2.4

2.4

5.7

5.7

4.4

5.9

3T?

5.9

5.9

3.9

3.9

102.9

3.32

204

Sept.

3.9

2 2

Iff

2.3

2.6

2.9

2.5

3.5

2.4

3.1

4.4

4.4

4.4

4.4

4.1

4.6

5.1

5.6

3.5 

5.5

2.8

4.4

2.9

2.4

5.7

5.4

675" 7.5

6.2

*6.2

118.9

5.96

256

idar year 1956; Max 10,700 Mln 2.0 Mean 524 Ac-ft 380,800

Water year 1956-57; Max 6,280 Mln 1.8 Mean 302 Ac-ft 218,900

Peak discharge (base, 5,100 cfs). Feb. 25 (2 a.m.) 7,900 cfs (10.05 ft); Mar. 5 (11 a.m.) 

4,550 cfs (7.60 ft); May 18 (12 p.m.) 11,200 cfs (12.11 ft)._______________________

* Discharge" measurement made on this day.
SACRAMENTO RIVER BASIN 469

Dry Creek near Wheatland, Calif.

Location.--Lat 39°01'35", long 121°26'10", in Johnson Rancho land grant, on left bank 

2,300 ft upstream from bridge on U. S. Highway 99E, 1.3 miles northwest of Wheatland, 

and 5 miles upstream from Bear River.

Drainage area.--99.5 sq mi.

Records available.--October 1946 to September 1957.

Gage. Water-stage recorder. Datum of gage is 62.83 ft above mean sea level (levels by 

California Department of Water Resources).

Average discharge.--11 years, 59.8 cfs (43,290 acre-ft per year).

Extremes. Maximum discharge during year, 1,780 cfs Feb. 24 (gage height, 8.65 ft); no 

flow for several months.

1946-57: Maximum discharge, 8,790 cfs Dec. 23, 1955 (gage height, 13.45 ft); no 

flow at times each year.

Remarks. Records fair. Portion of flow from drainage area may overflow or percolate 

into Best Slough above station. Flow in October and September mostly return from 

irrigated areas.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used Oct. 12-14, Nov. 3, 4, Jan. 13, 16-18, 2o, May 16-18, 22-3O,

June £-12, 16-17, 29, July 2, 25-26, Aug. 8-16, 20-30, Sept. 3-13)

Oct. 1 to Sept. 13 Sept. 14 to Sept. 3O

2.85

2.9

3.0

1.2 

1.7

3.5 

3.7 

3.9

4.2 

4.5

2.8 

4.7

5.0 

5.5 

6.0 

7.0 

8.0

76

156

286

645

1,270

3.0

3.1 

3.3 

3.5 

3.8

2.6

7.5

20

39

75

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

2Z

ZZ

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

0

0

0

0

0

0

9.2

STT

2.0

0

0

0

0

0

0

0

0

0

 0

0

0

0

0

0

0

0

17.3

0.56

34

Nov.

35

IF

6.5

1.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

»0

0

0

0

0

0

0

0

58.6

1.95

116

Dec.

(*)

0

0

0

Jan.

0

0

0

0

0

0

0

0

0

0

0

0

31

76

32

12

6.1

2.7

0

109

88

40

20

12

8.5

7.2

6.9

6.5

5.6

5.1

»4.7

473.3

15.3

939

Feb.

.5

.4

.5

. 7

.5

4.0 4"7o"

5.8

58

29

16

12

10

9.6

9.0

8.0

7.2

6.5

6.1

5.6

36

253

516

1,040

*517

519

303

122

-

3,519.4

126

6,980

Mar.

102

77

71

293

»654

292

138

96

123

83

64

60

60

49

52

148

70

52

44

37

30

25

22

23

23

23

23

19

12

IT

18

2,797

90.2

5,550

Apr.

50

31

20

16

15

 14

13

11

11

9.9

9.6

9.0

54 8.5

62

43

54

139

9g

63

49

42

35

28

36

36

31

27

22

17

1,052.0

35.1

2,090

Calendar year 1956: Max 3,970 Mln 0 Mean 64.7

Hay

17

23

52

26

17

17

 18

17

23

30

34

35

34

31

34

18

.1

214 

491

ITS

92

 49

28

19

13

9.0

9.3

9.0

4.6

2.5

0

1,481.5

47.8

2,940

June

0

.2

3.1

270

1.3

.6

.7

1.0

.7

.3

.6

.8 »o

0

0

.4

.3

0

0

0

0

0

0

0

0

0

0

0

.2

0

11.2

0.37

22

July

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0»o

0

0

0

0

.7

2.6

1.2

.2

0

0

0

0

4.8

0.15

9.5

Aug.

5"0

.2

.3

.4

.3

1.2

3.5

2.4

1.9

2.7

*3.1

2.7

2.4

1.8

1.0

.1

.1

.9

2.6

3.2

2.9

2.6

2.7

3.8

4.0

57T

3.3

2.7

1.6

1.0

58.1

1.87

115

Sept.

0.4

.3 27*3"

4^5

3.8

3.8

3.2

2.8

2.7

1.8

1.8

1.9

2.1

2.6

3.8

3.8

4.8

4.8

5.3

4.8

4.8

5.3

4.8

5.3

5.8

4.8

4.8

29

64

*24

213.9

7.13

424

Ac-ft 46,980

Water year 1956-57: Max 1,040 Mln 0 Mean 26.5 Ac-ft 19,220

Peak discharge (base, 2,000 cfs).--No peak above base.

Discharge measurement or observation of no flow made on this day.
470 SACRAMENTO RIVER BASIN

Feather River at Nicolaus, Calif.

Location. Lat 38°54'00", long 121°35'00", on left bank at Nicolaus, Sutter County, 

0.3 mile downstream from old highway bridge site and 2.9 miles downstream from Bear 

River.

Records available . June 1921 to December 1942 (low-water periods only) and April 1943 

to September 1957 in reports of Geological Survey. In reports of California Department of Water Resources 1939-57.

Gage . Water-stage recorder. Gage is set to datum of Corps of Engineers. Prior to 

November 1931, on middle fender pier of bridge 0.3 mile upstream at same datum.

Average discharge. --14 years (1943-57), 8,057 cfs (5,833,000 acre-ft per year).

Extremes. Maximum discharge during year, 93,000 cfs Feb. 25 (gage height, 44.48 ft); 

minimum, 502 cfs Aug. 26 (gage height, 20.87 ft).

1943-57: Maximum discharge, 357,000 cfs Dec. 23, 1955; maximum gage height, 

51.60 ft Dec. 23, 1955.

1921-57: Minimum discharge, no flow Aug. 2-18, 1924, July 11-22, 24, 26, Aug. 1, 

1931.

Remarks . --Records good. Flow partly regulated by reservoirs and powerplants. Diversions 

for irrigation of about 87,000 acres between stations near Oroville and at Nicolaus. 

Records of chemical analyses and water temperatures for the water year 1957 are given 

in WSP 1523.

Cooperation. Records collected and prepared in cooperation with California Department of 

Water Resources .

Discharge, in cubic feet per second, water year October 1956 to September 1957

Da.y

1 

2

3

4

5

6 

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2,630

2,610

2,590

2,570

2,550

2,560 

2,650 

2,770

*2,880

2,910

2,880

2,970

3,150

2,920

2,740

2,630

*2,580

2,630

*2,740

2,760

2,770

2,760

2,860

2,850

3,050

3,030

3,140

3,430

3,310 

3,270

6,760

91,950

2,966

182,400

Nov.

7.160 

5,320

4,560

4,390

4,130

3,880 

3,970 

4,300

4,360

4,360

4,300

4,250

4,250

»4,160

4,160

4,100

3,860

3,700

3,480

3,420

3,400

3,370

3,370

3,340

3,130

2,810

*2,660

2,620

2,670 

2,710

116,190

3,873

230,500

Dec.

2,730 

2,750

2.490

2,720

2,860

3,080 

3.180 

2,930

2,840

2,630

*2,610

2,890

2,900

2,940

2,92O

2,900

2,900

Z.89O

2,910

3,120

3,150

2,940

2,890

2,700

2,650

2,610

*2,670

2,620

2,510 

2,600

2,630

87,160

2,812

172,900

Jan.

2,900 

2,880

2,720

2,900

2,850

2,560 

2,400 

*2,650

2,890

3,210

3,OOO

2,960

4,010

6,570

5, 560

4,590

4,180

4,000

3,890

4,390

5,980

4,910

4,270

3,980

*3,740

3,730

3,690

3,450

3,380 

3,410

3.4OO

115,050

3,711

228,200

Feb.

3,380 

3,430

3,530

3,320

3,190

3.060 

3,150 

3,270

3,950

3,770

3,430

3,460

*3,520

3,730

4,030

4,210

4,460

4,050

4,550

4,840

5,300

6,750

9,270

21,000

65,800

80,200

*68,20O

54.OOO

384,850

13,740

763,300

Mar.

37,300 

26,400

22,100

24,30O

27,000

38,100 

38,000 

31,900

27,800

26,600

23,000

20,500

*21,200

19,300

17 , 400

18,200

17,300

15,700

14,300

13,100

12,300

12,000

11,200

10,500

*9,960

9,630

9,320

9,150

9,210 

9,870

10,700

593,340

19,140

tl,177

Apr.

10,800 

10,100

9,300

9,080

8,960

8.84O 

8,680 

8,360

*8,220

7,890

7,830

7,540

7,280

7,530

12.100

ll.lOO

9,150

10,600

11 , 400

10,200

9,210

8,700

8,9OO

8,840

8,080

*7,650

6,870

6,580

6.380 

6,540

262,710

8,757

521,100

May

6,920 

7,580

9,880

9,240

8,520

8,700 

9,150 

8,700

8,550

8,820

7,760

6,830

6,340

*6,230

6,400

5,960

5,440

6,620

32,900

43.500

 33,900

27,700

24,300

21,200

18,100

15,700

14,000

13 , 800

13 , 600 

12 , 600

11,900

420,640

13,570

834 , 300

June

11.100 

11,100

10,880

9,720

8,960

8,800 

8,290 

7,290

6,890

6,610

*6,320

5,950

5,440

5,030

4,600

4,240

3,860

3,490

3,350

3,180

2,830

2,650

2,650

2,480

2,270

2,200

2,080

1,850

1,720 

1,690

157,440

5,248

312,300

July

1.610 

1,490

1,290

1,190

1,180

1,130 

1,090 

1,OOO

912

800

793

800

842

737

653

*646

674

»730

688

646

667

730

744

744

863

919

905

891

891 

891

898

28,044

905

55,620

Aug.

799 

667

639

604

674

639 

674 

625

674

702

786

807

«TC5

674

625

632

674

660

681

*695

674

625

583

583

527

514 550"

688

800 

730

646

20,566

663

40,790

Sept.

681 

730

723

786

898

964 

912 

1,020

1,280

1,480

1,320

1,240

1,370

1,730

1,870

2,090

2,200

»2,410

2,500

2,540

2,550

2,500

2,430

2,400

*2,330

2,220

2,150

2,250

5,150 

2,790

53,514

1,784

106,100

Calendar year 1956: Max 99,100 Min 1,160 Mean 12,230 Ac-ft 8,875,000

Water year 1956-57: Max 8O.2OO Min 514 Mean 6,388 Ac-ft 4,625,OOO

* Discharge measurement made on this day.

* Expressed in thousands.
SACRAMENTO RIVER BASIN 

Sacramento River at Verona, Calif.

471

Location. Lat 38°46'50", long 121°36'10", in SE£ see. 23, T. 11 N., R. 3 E., on left

bank 0.8 mile southeast of Verona, 1 mile downstream from Feather River, 6.2 miles east 

of Knights Landing, and at mile 19.6 upstream from Sacramento.

Records available.--May 1926 to September 1957 (1926-29, low-water periods only) in

reports of Geological Survey. 1926-57 (1926-29, gage heights only) in reports of California Department of Water Resources.

Gage.--Water-stage recorder. Datum of gage is 0.06 ft below datum of Corps of Engineers. 

Auxiliary water-stage recorder 16 miles downstream from base gage since Oct. 1, 1944, 

at datum of Corps of Engineers. Prior to Oct. 1, 1944, auxiliary water-stage recorder 

at site 19.2 miles downstream at datum 0.12 ft above mean sea level (datum of 1929).

Average discharge. 28 years (1929-57), 17,680 cfs (12,800,000 acre-ft per year).

Extremes. Maximum discharge during year, 65,500 cfs Feb. 26 (gage height, 34.61 ft); 

minimum, 6,260 cfs July 13.

1926-57: Maximum discharge, 79,200 cfs Mar. 1, 1940 (gage height, 41.20 ft); minimum daily, 304 cfs July 23, 24, 1931; maximum reverse flow, 16,800 cfs Dec. 4, 1950, 

backwater from American River.

1934-57: Maximum combined discharge of Sacramento River at Verona and Fremont 

weir, about 315,000 cfs Mar. 1, 1940.

Remarks. Records excellent except those for periods of no gage-height record and those 

computed from once-daily staff-gage readings, which are fair. Flow regulated by Shasta 

Lake beginning Dec. 30, 1943, and several other reservoirs and powerplants above station, and by bypassing for flood control. Many diversions above station for irrigation. When discharge exceeds about 55.000 cfs, flow begins over Fremont weir (Just 

upstream) into Yolo bypass (see p. 508). Elevation of crest of Fremont weir is 33.5 ft 

(datum of Corps of Engineers).

Cooperation. Thirteen discharge measurements furnished by California Department of Water 

Res Resources.

Discharge , in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

11,500 

11,400

11,200

10,700

10,500

10,400

10 , 400 

10,400

10,500

*10,700

10,700

10 , 800 

11 , 100

11,300

11,100

10,900

10,700

10,700

10,600

10,600

10,700

10,800

10,900

11,000

*11,200

11,300

11,400

11,700

12,000

12, 200 

14,000

343,400

11,080

681,100

Nov.

17,600 

17,100

15, 00

14,600

14,000

13,4OO

13,100 

13,300

13,300

13,300

13,300

13,100 

12,800

12,600

12,500

*12,300

12,200

12,000

11,700

11,600

11,600

11,600

11,600

11,300

11,100

*10,800

10,500

10,400

10,500

10,300

379,100

12,640

751,900

Dec.

10,400 

10 . 400

10,200

10,300

10,600

10,900

11,100 

10,900

10,600

10,400

10,300

10,700 

*11,000

11,200

11,200

11,200

11,100

11,100

10,900

11,100

11,100

10,900

10,800

10,600

10,200

10,100

*10,100

10,100

9,890

9,740 

9,600

328,730

10,600

652,000

Jan.

9,460 

9,350

9,240

9,220

9,060

8,810

8,470 

8,810

9,100

*9,400

9,510

9,550 

10,800

13,900

17,800

16,600

14,500

12,800

11,600

11,100

12,500

13,500

13,200

11,800

10,700

10,300

9,940

*9,600

9,280

9,100 

8,930

337,930

10,90O

670,300

Feb.

8,900 

8,920

8,950

8,860

8,470

8,210

8,200 

8,530

8,830

9,080

8,880

8,650 

8,770

*8,900

9,080

9,260

9,620

9,510

9,560

10,000

10,500

11,700

14,500

25,500

46,800

*64,400

63,800

61,600

-

477,780

17,060

947,700

Mar.

57,700 

55,800

54,000

53,600

55., 700

59,100

60, OOP 

*S9,300

58,500

57,500

*55,700

*53,300 

51,800

50,100

47,000

44,500

43,200

42,400

40,600

38,000

35,700

33,600

31,800

29,900

27,800

26,000

24,500

23,200

*21,700

21,000 

21,600

tl.334.6

43,050

*2,647

Apr.

21,800 

21,200

19,800

18,800

17,900

17,100

16,700 

16,000

15,400

14,700

*13,900

13,000 

12,400

12,200

14,700

18,500

17,900

17,100

19,100

20,500

20,500

20,900

20,700

19,800

17,700

*15,800

13,900

12,200

11,300

10,900

502,400

16,750

996,500

May

11 , 100 

12,200

14,500

15,500

15,200

14,800

15,300 

15,700

15,800

16 , 900

17,300

16,800 

16,800

16,900

17,300

*17,700

17,600

17,000

28,100

45,100

*52,400

53,600

52,500

49,300

44,500

39,400

35,400

32,900

31,700

29,900 

27,800

807,000

26,030

*1,601

June

26,200 

2S.200

24.5OO

23,100

21,300

20,200

19,300 

17,800

16,400

15,400

14,500

14,100 

*13,300

12,400

11,600

10,9OO

10,400

9,460

9,330

8,720

8,260

7,990

7,860

7,730

7,480

7,240

6,960

6,720

6,780

6,720

397,850

13,260

789,100

July

6,780 

6,820

6,940

6,900

6,950

7,120

7,060 

6,960

6,880

6,620

6,540

6.550 

6,360

6,460

6,380

6,540

6,650

*6,820

6,720

6,720

6,800

7,040

7,260

7,220

7,060

*7,100

7,010

7,000

7,020

7,100 

7,060

212,240

6,846

421,000

Aug.

6,830 

a6,830

a6,830

a6,830

a6,830

B6,830

a6,910 

a6,990

a7,070

a7,160

a7,250

B7.340 

a7,l40

a6,940

*g6.740

36,750

36,760

36,770

g6,780

a6,780

a6,780

a6,770

g6,770

36,790

36,820

*6,840

6,780

6,840

7,020

7,180 

7,190

214,140

6,908

424,700

Sept.

7,540 

7,490

7,670

7,840

7,970

8,000

8,040 

8,420

9,100

9,420

9,400

9,370 

9,440

9,870

10,200

10,500

10,800

11,000

10,900

*10,800

10,800

10,800

10,600

10,100

*9,890

9,600

9,420

10,400

14,700

16,500

296,380

9,879

587,900

Calendar year 1956: Max 66,300 Kin 7,780 Mean 24,530 Ac-ft 17,810,000

Water year 1956-57: Max 64,400 Kin 6,350 Mean 15,430 Ac-ft 11,170,000

* Discharge measurement made on this day. * Expressed In thousands.

a No gage-height record) discharge estimated on basis of records for station at Sacramento.

g Computed from once-daily staff-gage readings.

Sacramento weir near Sacramento, Calif. 

Location.--Lat 38°36'25", long 121°33'15", on left bank of Sacramento River opposite

center of Sacramento weir, 3.2 miles upstream from American River, 4 miles northwest

of Sacramento, and at mile 4.2 upstream from Sacramento. 

Records available. November to December 1950 (discharge for flood period published in

WSP 1137-F), October 1951 to September 1957 in reports of Geological Survey. February

1926 to September 1934 (gage heights only) and October 1934 to September 1957 in

reports of California Department of Water Resources. 

Gage. Water-stage recorder and concrete-weir crest. Gage is set to datum of Corps of

Engineers. Prior to October 1942, water-stage recorder or staff gage at downstream end

of weir at same datum. 

Extremes. No flow during year.

T9~26-57: Maximum discharge, 118,000 cfs Mar. 26, 1928; maximum gage height, 32.92ft

Nov. 21, 1950; no flow for all or most-of each year. 

Remarks. Crest of weir is at elevation 25.0 ft and top of movable gates at 31.0 ft.

Weir consists of 48 gates each 38.1 ft long. Flow over weir enters Yolo bypass by

way of Sacramento bypass. Flow regulated by weir gates. 

Cooperation. Records collected and prepared in cooperation with California Department of

Water Resources.
472 SACRAMENTO RIVER BASIN

North Fork Forbes Creek near Dutch Flat, Calif.

Location. Lat 39°08'37", long 120°45'30", in SEir sec. 17, T. 15 N., R. 11 E., on right 

bank 0.2 mile downstream from Big Reservoir and 6.0 miles southeast of Dutch Flat.

Drainage area. 1.68 sq mi.

Records available. July 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 3,980 ft (from topographic map).

Extremes. 1956: Maximum daily discharge during period July to September, 1.9 cfs 

July 27-29; minimum daily, 1.4 cfs Sept. 29, 30.

1956-57: Maximum discharge during water year, 30 cfs May 20 (gage height, 2.82 ft), 

from rating curve extended above 19 cfs by logarithmic plotting; minimum daily, 0.8 cfs 

Feb. 5, 6.

Remarks. Records good. Flow regulated by Big Reservoir.

Rating tables, July 27, 1956, to Sept. 30, 1957 (gage height, In feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used Dec. 11-27)

July 27, 1956, to May 20, 1957 May 21 to Sept. 3O, 1957

1.5

1.6

1.7

0.6 

1.0 

1.5

2.0 

2.2 

2.5

1.6

1.7

1.2 

2.0

1.8 

2.0

2.8 

5.4

1.8 2.3 2.8 29 Note. Same as preceding 

table above 2.C) ft.

Discharge, In cubic feet per second, 1956

Day

1 

2 

3 

4 

5 

6 

7 

8

Mean 

Runo

July Aug.

.8 

* .8 

.8 

.8 

.8 

.8 

.8 

.8

Sept.

1 6 

1 6 

1 6 

1 6 

1 6 

1 6 

1 5 

1 5

Day

9 

10 

11 

12 

13 

14 

15 

16

July

1

Aug.

.8 

.8 

.8 

.8 

.8 

.8 

.8 

.8

S pt.

.5 

.5 

.5 

.5 

.5 

.6 

.6 

1.5

Day

17 

18 

19 

20 

21 

22 

23 

24

July

:

Aug.

.7 

.7 

.7 . 

.7 

.,7 

.7 

.6 

.6

Sept.

'1.5 

1.5 

1.6 

1.6 

1.6 

1.5 

1.5 

*1.5

Day

25 

26 

27 

28 

29 

30 

31

ff in acre-feet.... .......................................................

July

1.9 

1.9 

1.9 

1.8 

1.8

_

Aug.

6 

6

6 

6 

6 

6 

6

1.72 

106

Tept.

1.5 

1.5 

1.5 

1.5 

1.4

1.53 

91

* Discharge measurement made on this day.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10 

11

12 

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Ac-ft

Oct.

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4 

1.5

1.3 

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.6

1.4

1.4

1.5

1.4

1.4 

1.4

1.7

175

43.2

1.39

86

Nov.

1.4

1.3

.3

.3

* .3

.3

.3

.3

.3

.2 

.2

.2

.2

.2

.2

.2

.2

1.1

rrr

1.1

1.1

1.1

1.1

1.2

1.2 

1.2

1.2

36.6

1.22

73

Dec.

1.1

1.1

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.0 

1.0

1.0

1.0

*1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.i!

1.0

.9

1.0 

1.0

1.0

1.0

32.4

1.05

64

Jan.

.0

.0

.0

.0

.0

.0

.0

.0

.0

.3

.0

.0

1.0

.9

79

.9

1.0

1.0

1.0

1.0

1.0

1.0

l.-O

1.0

.9

.9

.9

30.7

0.99

61

Feb.

.9

.9

.9

.:!

.8

.9

.1

.0

.0

.1 

.2

.1

.1

.1

.0

.0

.0

1.2

1.3

1.8

3.0

2T5

*1.8

1.8

1.6

35.0

1.25

69

Mar.

1.6

1.7

2.1

3.2

2.8

2.5

7.1

18

18

18 

16

*17

*18

16

15

14

14

13

12

10

11

9.8

8.6

7.8

7.2

7.6

7.8

323.8

10.4

642

Apr.

6.6

5.9

5.4

5.0

4.8

4.3

4.2

3.9

3.6

3.6 

8.0

6.6

5.4

6.4

7.4

7.0

6.8

7.0

6.8

6.8

6.6

6.4

6.1

5.7

5.5

5.0

170.4

5.68

338

May

7.6

*6.8

5.7

5.2

4.5

4.2

4.5

4.8

4.7

4.0

4.0

3.7

3.2

372

14

26

.29

27

23

20

18

15

14

12

*10

8.6

7.8

313.5

10.1

622

June

6.3

5.7

5.2

4.9

4.4

4.1

3.9

4.0

3.9

2.8 

2.5

2.4

1

2 "?

2.1

2.'0

2TO

2;.l

2.1

2.1

2.0

2.0

2.0

2.0

2.0

*2.1

2.0

94.5

3.15

187

July

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.9

1.9

1.9 

1.9

1.9

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.7

1.6

57.3

1.85

114

Aug.

1.6 

176

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6 

1.6

1.6

1.6

1.6

L£

1.5

1.5

1.5

*1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

48.2

1.55

96

Sept.

1.5 

T75

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4 

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.5

1.4

42.7

1.42

85

Calendar year 1956: Max - Mln - Mean - Ac-ft -

Water year 1956-57: Max 29 Mln O.8 Mean 3.37 Ac-ft 2,440

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 473

North Shirttail Creek near Dutch Plat, Calif.

Location. Lat 39°07'49", long 120°47'44", in SE^ sec. 24, T. 15 N., R. 10 E., on right 

bank 200 ft downstream from Porbes Creek and 7.0 miles southeast of Dutch Plat.

Drainage area.--9.10 sq mi.

Records available . July 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 3,500 ft (from topographic map).

Extremes. Maximum discharge during water year, 520 cfs Feb. 24 (gage height, 4.14 ft), 

from rating curve extended above 150 cfs by logarithmic plotting; minimum, 1.1 cfs 

Sept. 10, 11.

Remarks. Records good. Plow slightly regulated by Big Reservoir.

Rating table, 'July 18, 1956, to Sept. 30, 1957, except periods of ice effect (gage 

height, in feet, and discharge, in cubic feet per second)

0.6

.7

0.9 

1.5 

2.2 

3.0

1.0 

1.2 

1.5 

2.0

4.4

9.0

18

42

2.5 

3.0 

3.5

76

146

266

Discharge, in cubic feet per second, 1956

Day

1

2

3

4

5

6

7

8

July

_

-

-

-

-

_

-

Aug.

2.5

 775"

2.4

2.4

2.4

2.3

2.3

2.3

Sept.

1.9

1.9

1.9

1.8

1.8

1.8

1.8

1.8

Day

9

10

11

12

13

14

15

16

July

_

-

.

-

-

_

_

-

Aug.

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.1

Sept.

1.8

l.S

l.S

1.8

1.8

1.8

1.8

1.8

Day

17

18

19

20

21

22

23

24

July

_

2.9

2.9

2.8

2.7

2.6

2.6

Z.6

Aug.

2.1

2.1

2.1

2.1

2

2

2.0

2.0

Sept.

1.7

1.8

2.2

2.0

1.9

1.9

1.9

 1.8

Day

25

26

27

28

29

30

31

July

2.6

2.6

2.5

2.5

2.5

2.5

2.5

-

Aug.

E.O

2.0

2.0

2.0

2.0

1.9

ITS

132

Sept.

l.S

1.7

1.8

1.8

1.8

1.8

109

Discharge measurement made on this day.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

1.8

T7T

1.8

1.8

1.8

1.7

1.9

1.9

1.9

2

2.6

2.1

2

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

3.5

2.3

2.1

2.9

2.9

2.5

2.3

"9.0 14

83.6

2.70

166

Nov.

4.2 J73

2.9

2.6

2.5

*2.4

2.4

2.3

2.2

2.2

2.2

2.2

2.2

2.1

2.1

770- 2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.9

1.9

1.9

1.9

1.9

1.9

67.2

2.24

133

Dec.

1.9

179

1.9

3.5

5.0

3.2

2.S

2.7

2.5

2.6

3.2

4.0

4.2

3.7

3.2

2.9

*2.8

2.7

2.6

2.5

2.5

2.5

2.4

2.4

2.4

2.3

2.2

2.2

2.2

2.2

2.2

85.3

2.75

169

Jan.

2.2

Z.I2.1

2.1

2.1

2.1

2.0

775

2.4

2.2

2.3

3.6

62

IS

9.0

7.0

5.6

4.8

4.2

b4.0

b4.0

3.8

3.7

3.4

3.4

b3.4

b3.4

b3.2

b3.2

b3.0

b3.0

174.6

5.63

346

Feb.

b2.9

*b279~

b2.9

b2.9

b2.9

2.9

4.2

23

17

13

23

21

25

23

18

18

16

14

13

13

35

39

81

215

T7T

*104

76

60

1,045.6

37.3

2,070

Calendar year 1956: Max - Mln

Mar.

46

40

38

56

130

*105

74

67

91

74

66

83

73

67

*78

*78

68

62

58

53

50

44

39

37

34

31

28

26

?$

27

31

1,782

57.5

3,530

Apr.

30

25

22

20

20

19

18

17

15

14

14

14

13

32

22

20

26

34

37

34

27

26

24

22

21

20

19

18

18

17

653

21.8

1,300

May

16

32

*22

20

18

17

16

17

18

17

17

17

16

16

16

IB- 15

142

T5Q- 193

112

88

74

66

58

52

46

*40

36

34

30

1,426

46.0

2,830

June

SB- 27

23

22

20

17

17

16

17

16

15

15

14

14

12

11

10

9.3

8.2

7.2

6.5

5.6

5.4

5.0

4.8

4.8

4.4

*4.2

4.0

3*8

364.2

12.1

722

July

3.4

3.7 37B3.4

3.3

3.4

3.3

3.0

2.6

2.5

2.5

2.4

2.4

2.4

2.4

2.3

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.1

1.9

1.7

1.7

1.7

1.7

1.5

76.5

2.47

152

Aug.

1.5

T75

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.2

T72

1.2

1.2

1.2

1.2

1.2

1.2

*1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

39.7

1.28

79

Sept.

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.2

1.2

1.2

1.2

1.3

1.4

1.4

1.5

1.5

1.4

1.3

1.2

1.2

1.2

1.2

1.3

1.5

1.9

T7T

1.8

39.5

1.32

78

Mean - Ac-ft -

Water year 1956-57: Max 215 Mln 1.1 Mean 16.0 Ac-ft 11,580

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
474 SACRAMENTO RIVER BASIN

North Pork American River at North Pork Dam, Calif.

Location. Lat 38°56'15", long 121 "01'25", in SWij-NWtr sec. 31, T. 13 N., R. 9 E., on left 

bank 50 ft upstream from spillway of North Pork Dam, 2 miles upstream from Middle 

Pork, and 4 miles northeast of Auburn.

Drainage area. 343 sq mi.

Records available.--October 1941 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 715.0 ft above mean sea level (levels by 

Corps of Engineers).

Average discharge.--16 years, 840 cfs (608,100 acre-ft per year).

Extremes.--Maximum discharge during year, 17,700 cfs May 18 (gage height, 6.31 ft); minimum, 40 cfs Sept. 26.

1941-57: Maximum discharge, 49,100 cfs Dec. 23, 1955 (gage height, 10.22 ft), from 

rating curve extended above 22,000 cfs on basis of computed flow over spillway of dam; 

no flow Aug. 27-30, Sept. 2-11, 1944, caused by operation of valves In North Pork Dam.

Remarks.--Records good. Plow regulated by Lake Clementine (capacity, 12,800 acre-ft) 

formed by North Fork Dam. Storage in Big Reservoir and Lake Valley Reservoir (combined capacity, 10,300 acre-ft) above station. Lake Valley Canal diverts from North 

Pork of North Pork American River into Bear River basin for power development in Alta 

powerhouse of Pacific Gas & Electric Co. Combined storage and diversion have small 

effect on natural flow.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

O.Z 

.4

1.4

40

118

300

915

Z.O 

3.0 

4.0 

5.0

1,580

3,080

6,000

10,400

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30 

31

Total

Mean

Ac-It

Oct.

*50

50

50

50

53

53

53

53

56

56

75

91

75

67

63

67

67

67

67

67

60

60

83

108

91

83

148

170

113

259 

606

3,011

97.1

5,970

Nov.

*251

170

143

133

128

143

154

164

182

182

170

154

138

128

125

108

104

104

104

99

91

91

95

95

95

87

87

87

83

(JT OJ

3,776

126

7,490

Dec.

83

79

*T9

87

194

200

133

108

104

104

118

368

330

308

251

194

176

154

148

138

133

123

113

113

113

108

104

104

104

104 

99

4,574

148

9,070

Jan.

99

*99

95

95

11

91

91

99

108

91

95

128

642

565

330

244

206

182

170

368

400

265

218

200

194

188

164

148

143

143 

138

6,090

196

12,080

Feb.

*138

159

154

143

138

138

143

408

531

353

416

608

745

1,070

865

785

815

795

688

616

785

1,150

2,320

6,250

8,510

4,260

3,300

2,170

-

38,253

1,366

75,870

Map.

* ,670

,560

,500

,670

,660

,850

,090

,160

,360

,910

,610

,880

,720

,530

,600

,800

,500

,330

,200

,110

1,130

1,000

915

875

855

825

825

905

1,140

1,260

1,150

52,590

1,696

104,300

Apr.

 1,130

955

895

965

1,070

1,230

1,040

975

1,000

1,090

1,120

995

955

1,670

1,470

1,140

1,120

1,410

1,260

1,110

1,020

1,000

995

995

1,000

995

1,070

1,190

1,340

1,310

33,515

1,117

66,480

May

 1,370

1,710

1,440

1,280

1,410

1,610

1,580

1,480

1,340

1,210

1,110

1,060

1,030

1,060

945

995

1,140

5,890

8,700

4,650

3,570

3,000

2,450

2,140

1,960

1,980

2,100

2,080

1,870

1,780

1,760

65,700

2,119

130,300

June

,810

,770

* ,550

,480

,440

,330

,140

,070

,020

905

845

785

775

697

634

565

522

514

506

489

473

440

416

408

384

376

353

330

323

286

23,636

788

46,880

July

*265

258

237

224

212

200

188

182

176

164

159

154

148

148

143

133

128

123

118

118

113

108

104

104

104

99

95

91

87

83 

S3

4,549

147

9,020

Aug.

*79

79

75

75

75

75

75

75

75

71

71

67

63

56

60

60

60

56

56

56

56

56

56

53

53

53

53

53

53

*53 

53

1,951

62.9

3,870

Sept.

53

53

50

50

50

50

46

46

46

46

46

46

46

46

45

46

46

50

50

50

46

46

43

43

43

43

53

71

75

TT

1,493

49.8

2,960

Calendar year 1956: Max 12,800 Mln 50 Mean 986 Ac-ft 715,600

Water year 1956-57: Max 8,700 Mln 43 Mean 655 Ac-ft 474,300

Peak discharge (base, 4,300 cfs).--Feb. 24 (ll p.m.) 13,800 cfs (5.64 ft); Mar. 5 (10 

6,610 cfs (4.16 ft); May 18 (10:50 p.m.) 17,700 cfs (6.31 ft)._________________ 

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 475

Middle Pork American River at French Meadows, Calif.

Location (revised). Lat 39°06'43", long 120°28'00", In NE-f sec. 36, T. 15 N., R. 13 E., 

on left bank at downstream end of French Meadows, 4.9 miles upstream from Chipmunk 

Creek and 14 miles south of Cisco.

Drainage area. 46.7 sq mi.

Records available. October 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 5,050 ft (from Bureau of Reclamation 

reservoir map).

Average discharge.--6 years, 169 cfs (122,400 acre-ft per year).

Extremes. Maximum discharge during year, 3,510 cfs May 18 (gage height, 8.99 ft), from 

rating curve extended above 1,800 cfs on basis of slope-area determination at gage 

height 14.95 ft; minimum, 0.7 cfs Sept. 24.

1951-57: Maximum discharge, 16,300 cfs Dec. 23, 1955 (gage height, 14.95 ft), 

from rating curve extended above 1,400 cfs on basis of slope-area determination of 

peak flow; minimum, 0.6 cfs Oct. 14, 1955.

Remarks. Records good except those for period of no gage-height record, which are fair. 

No storage or diversion above station.

Revisions (water years). WSP 1445: 1953-54.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

1.7

1.8

1.9

2.0 

2.2 

2.4 

2.6 

2.8 

3.0

Oct. 1 to May 18

1.0 

1.6 

2.3 

3.1 

6.4

May 18 to Sept. 30

3.5 

4.0 

4.5 

5.0 

5.5 

6.0 

7.0 

8.0

62

116

198

322

495

725

1,420

2,340

1.9

2.0

2.4

2.7 

3.0

0.9 

1.5 

2.4

3.5 

4.0 

4.5 

5.0 

5.5 

6.0 

6.5 

7.0

59

107

185

310

470

690

960

1,330

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.0

oTo

1.0

1.0

1.0

1.0

1.0

1.2

1.0

1.2

1.6

1.2

1.3

1.6

2.0

2.4

2.6

2.9 

»3.2

3.4

3.4

3.6

4.0

3.8

4.0

11

44

20

16

30

30

202.4

6.53

401

Nov.

22

19

18

18

19

22

26

34

42

42

40

32

29

24

20

19

18

18 

14

13

14

14

14

13

13

1212-

12

12

*12

617

20.6

1,220

Dec.

12

12

11

11

11

8.9

7.9

10

12

15

15

70

55

50

45

40

35

30 

28

27

25

23

21

20

22

20

18

17

17

16

16

720.8

23.3

1,430

Jan.

15

*15

17

15

15

14

13

14

12

12

14

16

23

33

30

25

22

21 

20

20

18

20

20

20

19

19

18

18

18

IB

17

571

18.4

1,130

Feb.

17

18

18

17

17

17

17

18

18

18

21

34

91

188

148

139

164

*167 

137

121

102

110

234

882

1,220

616

448

328

-

5,325

190

10,560

Mar.

268

310

263

310

1.150

780

511

382

392

298

248

273

213

180

176

152

136

128 

125

132

139

121

115

120

132

132

158

237

359

322

310

8,552

276

16,960

Apr.

246

215

232

289

340

385

292

295

328

359

346

304

307

566

399

322

276

251 

226

206

190

*206

219

232

243

260

313

372

410

399

9,033

301

17,920

May

430

491

368

392

475

507

503

448

355

325

281

258

260

255

259

281

325

1.550 

l)lOO

618

522

494

428

400

414

466

518

518

470

474

486

14,651

472

29,020

June

534

490

449

446

456

575

331

298

258

222

»212

218

210

171

149

151

127

155 

140

132

124

120

115

114

105

95

90

87

76

65

6,475

216

12,840

July

58

B?

47

42

38

34

36

31

27

24

22

20

18

17

16

15

14

13 

12

12

12 .

11

10

9.7

9.2

8.7

8.5

7.8

7.6

7.1

Ta

646.5

20.9

1,280

Aug.

6.9

7.1

6^

6.0

6.0

5.5

5.5

5.3

4.9

4.9

4.6

4.4

4.0

3.8

3.8

3.4

3.3

3.1 

5.0

2.9

2.8

2.7

»2.7

2.6

2.5

2.4

2.4

2.5

2.2

2.1

2.0

121.5

5.91

240

Sept.

1.9

TT7

1.8

1.7

1.6

1.5

1.4

1.4

1.5

1.2

1.2

1.1

1.1

1.1

1.0

1.0

1.1

1.1 

1.0

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

55.4

1.18

70

Calendar year 1956: Max 1,790 Mln 1.0 Mean 194 Ac-ft 141,200

water year 1956-57: Max 1,530 Mln 0.9 Mean 129 Ac-ft 93,070

Peak discharge (base. 1,400 cfs).--Feb. 24 (10:50 p.m.) 1,960 cfs (7.62 ft); May 18 (5:30 p.m.) 

5,510 efs (8.99 ft).________________________________________________________________

* Discharge measurement made on this day.'

Note. No gage-height record Dec. 8 to Jan. lj discharge estimated on basis of recorded range In 

stage and records for Rubicon River near Georgetown.
476 SACRAMENTO RIVER BASIN

Rubicon River at Rubicon Springs, near Meeks Bay, Calif.

Location. Lat 39°01'10", long 120°14'46", in SW^NE^ sec. 31, T. 14 N., R. 16 E. , on 

right bank 200 ft downstream from Rubicon Springs, 0.7 mile upstream from Miller 

Creek, and 7 miles west of Meeks Bay.

Drainage area. 31.4 sq mi.

Records available. February 1910 to March 1914 (published as "at Rubicon Springs"), 

October 1956 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 6,052.97 ft above mean sea level, datum 

of 1929. Feb. 1, 1910, to Mar. 31, 1914, staff gage, or water-stage recorder at site 

0.4 mile downstream at different datum.

Extremes.--Maximum discharge during year, 3,030 cfs May 18 (gage height, 8.27 ft), from 

rating curve extended above 1,100 cfs by logarithmic plotting; minimum, 1.4 cfs Oct. 5. 

1910-14, 1956-57: Maximum discharge that of May 18, 1957; no flow Sept. 4-15, 1910. 

Flood in December 1955 reached a stage of 13.0 ft, from floodmarks, present site and 

datum (discharge unknown).

Remarks. Records good. Low summer flows beginning in 1950 augmented by release from 

streamflow maintenance dams on Lakes Clyde, Lois, Middle Velma and Schmidell (total 

controlled capacity, 555 acre-ft).

Rating table, water year 1956-57 (gage height. In feet, 

and discharge. In cubic feet per second)

1.5

1.6

2.5 

3.0 

3.5 

4.0 

5.0 

6.0 

7.0

48

106

184

298

630

1,150

1,860

Discharge, lr ubLc feet per second, water year October 1956 to September 1D57

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.9

1.8

1.6

*1.6

1.4

1.6

1.8

8.5

9.8

7.2

30.

19

14

11

8.5

7.2

6.2

5.2 

5.2

*5.4

4.3

3.5

3.9

7.6

17

126

T04

36

24

41

44

560.2

18.1

1,110

Nov.

44

37

33

33

44

52

58

71

80

79

67

53

44

32

23

20

18

17 

11

13

12

11

11

10

10

9.8

9.8

9.4

"57T 9.1

930.2

31.0

1,850

Dec.

9.4

9.1

*9.1

9.1

7.9

7.4

21

21

18

18

158

232

125

100

59

45

36

31 

28

23

21

18

18

16

14

13

13

14

14

14

12

1,137.0

36.7

2,260

Calendar year 1956: Max -

Jan.

11

11

11

9.1

9.1

8.5

8.2

7.9

175

11

10

9.4

23

31

26

20

16

15 

14

16

19

18

16

14

14

16

15

14

14

14

13

442.7

14.3

878

Feb.

14

14

14

14

13

13

12

T3

15

15

126

177

398

438

153

173

*133 

101

83

69

61

76

171

306

170

116

97

3,186

114

6,320

Mln -

Mar.

79

85

68

69

182

133

116

87

80

62

56

55

54

49

45

42

39

37 

39

48

57

44

39

44

64

74

103

177

217

130

114

2,488

80.3

4,930

Apr.

86

67

79

131

196

228

161

164

188

239

217

177

182

314

152

127

96

83 

74

66.

73

*93

137

161

180

208

280

349

355

527

5,190

173

10,290

Mean -

May

423

380

213

293

467

524

538

374

222

219

190

177

179

161

182

379

369

1.550 

702

248

211

211

166

202

341

555

*660

*652

589

619

729

12,705

410

25,200

June

855

787

753

793

865

622

545

541

410

550

349

415

401

277

250

211

255

308 

349

355

298

295

306

335

332

305

288

311

270

228

12,571

419

24,930

July

219

T90

161

153

152

130

125

114

97

93

*87

77

74

64

62

52

49

48 

48

41

55

51

50

29

28

25

23

22

20

^?

16

2,311

74.5

4,580

Aug.

14

12

11

9.8

8.5

8.5

7.6

7.2

6.6

6.2

5.6

5.2

4.5

4.5

4.9

4.7

4.5

5.9 

5.7

5.5

5.3

3.5

5.1

2.9

2.7

2.5

2.4

2.2

272

2.2

2.2

165.0

5.32

327

Sept.

2.2

2.2

2.0

1.9

1.9

*1 6

T75

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

2.0

2.2 

2^4

2.4

2.0

2.0

1.9

1.9

1.9

1.8

1.8

1.8

1.9

2.4

59.2

1.97

117

Ac-ft -

Water year 1956-57: Max 1,530 Mln 1.4 Mean 114 Ac-ft 82,790

Peak discharge (base 

(5.35 ft)j May 18

700 cfs). Feb. 14 (l a.m.) 711 cfs (5.18 ft); May 6 (9 p.m.) 795 cfs 

6:30 p.m.) 3,030 cfs (8.27 ft); June 1 (10 p.m.) 1,310 cfs (6.26 ft).

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 477

South Fork Rubicon River at mouth, near Georgetown, Calif.

Location. Lat 38°58'05", long 120°27'55", in SE£ sec. 13, T. 13 N., R. 13 E., on left

bank 0.2 mile upstream from mouth, 0.4 mile downstream from South Creek, and 21 miles

east of Georgetown. 

Drainage area. 56.9 sq mi. 

Records available.--November 1909 to December 1911 (published as "Little South Fork

Rubicon River at mouth near Quintette"), July 1956 to September 1957. 

Gage. Water-stage recorder. Altitude of gage Is 3,600 ft (from topographic map).

iTov. 29, 1909, to Dec. 7, 1911, staff gage at site 30 ft downstream at different

datum. 

Extremes. Maximum discharge during period, July 1956 to September 1957, 2,170 cfs May 18

(gage height, 8.02 ft), from rating curve extended above 500 cfs on basis of slopearea determination at gage height 19.2 ft for flood in December 1955; minimum, 2.5 cfs

Oct. 22, 23.

1909-11, 1956-57: Maximum discharge, that of May 18, 1957; minimum daily, 2 cfs

Nov. 4-8, 1910.

Flood of Dec. 23, 1955, reached a stage of 19.2 ft, from floodmarks, present site

and datum (discharge, 11,700 cfs from slope-area determination of peak flow). 

Remarks. Records good. Flow regulated beginning in 1884 by Loon Lake (usable capacity,

8,000 acre-ft) on Gerle Creek where most of stored water is diverted out of watershed

in Georgetown Divide ditch (see p. 479, 480).

Rating table, July 26, 1956, to Sept. 30, 1957 (gage height, in feet, 

and discharge, in cubic feet per second)

0.49

.6

.7

.8 

1.0 

1.2

2.5

5.6

9.4

14

28

44

1.5 

2.0 

3.0 

4.0 

6.0

76

140

315

555

1,220

Discharge, in cubic feet per second, 1956

Day

1 

2 

3 

4 

5 

6 

7 

8

Tota 

Mean 

Runo

July Aug.

16 

14 

14 

14 

13 

12 

12 

12

Sept.

8.1 

8.9 

8.5 

7.7 

7.7 

7.7 

7.3 

7.3

Day

9 

10 

11 

12 

13 

14 

15 

16

July

1

Aug.

*12 

12 

11 

10 

9.9 

8.9 

8.5 

8.5

Sept.

.3 

.3 

.3 

.3

.7 

.7 

.7 

.7

Day

17 

18 

19 

20 

21 

22 

23 

24

July

:

Aug.

8.5 

8.5 

8.5 

8.5 

8.5 

11 

8.5 

8.1

Sept.

7.3 

6.9 

8.9 

11 

~5.9 

8.9 

8.5 

8.1

Day

25 

26 

27 

28 

29 

30 

31

July

28 

23 

19 

18 

17

_

Aug.

8.1 

8.1 

8.1 

7.7 

7.7 

7.7 

7.5

10.1 

620

Sept.

8.1 

7.7 

7.3 

6.9 

6.5 

675

7.87 

468

* Discharge measurement made on this day.

Note. Discharge measurements made during water year prior to peril 

Oct. 7, 4.5 cfs; Oct. 28, 6.3 cfs; Dec. 23, 11,700 cfs (result of sl< 

497 cfs.

.od of record are as follows: 

.ope-area determination); May 16,

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

6.9

6.9

6.9

7.3

8.1

7.7

8.1

9.9

11

11

19

16

12

5.0

4.4

3.8

3.2

*2.7

2.7

2.7

2.7

T74- 2.5

5.3

5.3

10

56

26

16

52

40

375.5

12.1

745

Nov.

25

23

20

20

20

25

29

36

39

37

35

30

25

21

17

15 14

13

11

9.9

11

10

9.9

9.4

8.5

8.1

S7T

8.5

8.5

*8 . 9

555.8

18.5

1,100

Dec.

8.9

8.1

875

10

13

8.9

9.4

13

17

15

20

86

72

69

48

38

33

28

27

23

19

18

20

18

17

16

14

18

17

17

15

744.8

24.0

1,480

Calendar year 1956: Max -

Jan.

13

13

15

11

13

12

10

Tf

12

18

16

17

45

62

45

40

35

32

30

30

31

30

28

28

27

28

28

28

28

29

30

802

25.9

1,590

Feb.

33

30

26

26

ii

24

25

34

33

32

54

136

216

275

248

232

237

212

 173

153

140

148

296

692

907

542

422

333

-

5,703

204

11,310

Mar.

281

305

273

315

1,070

718

497

403

435

347

307

341

289

264

264

239

221

212

212

221

230

201

T56" 185

206

212

248

309

457

410

370

10,232

330

20,290

Apr.

317

277

279

223

221

339

264

262

270

297

287

257

262

515

357

297

266

268

259

239

223

*235

235

241

257

266

299

337

365

370

8,584

286

17,030

May

372

438

337

333

367

375

378

349

311

339

329

305

301

299

270

279

289

1.100

980

545

500

492

417

365

345

355

351

321

283

299

291

12,315

397

24,430

June

303

FT?

262

255

243

201

179

168

123

146

129

125

121

99

87

74

68

*69

72

68

62

56

49

49

46

43

40

39

37

33.

3,525

118

6,990

July

31

29

26

25

24

21

25

24

22

20

18

18

17

16

15

14

13

13

14

13

13

12

12

11

11

11

11

11

10

9.4

S7T

518.8

16.7

1,030

Aug.

8.9

9.4

8TT

8.1

8.1

.7

.7

.7

.7

.3

.3

.3

.3

.9

S79

.3

.7

.7

.7

* .3

.3

.3

.3

.3

.9

.9

.9

.3

.3

* 9

.9

232.4

7.50

461

Sept.

6.9

6.9

6.9

6.5

6.5

6.5

6.9

6.9

6.9

6.9

6.9

6.9

6.5

6.5

6.5

6.5

6.9

7.7

T77

6.9

6.5

6.5

6.2

6.2

5.9

5.9

5.9

5.9

6.2

7.3

199.3

6.64

395

Mln - Mean - Ac-ft -

Water year 1956-57: Max 1,100 Mln 2.5 Mean 120 Ac-ft 86,850

Peak discharge (base, 1,000 cfs). Feb. 24 (11 p.m.) 1,330 cfs (6.26 ft); Mar. 5 (8 a.m.) 1,180 cfs 

(5.89 ft); Hay 18 (8 p.m.) 2,170 efs (8.02 ft).__________________________________________ 

* Discharge measurement made on this day.
478 SACRAMENTO RIVER BASIN

Rubicon River near Georgetown, Calif.

Location. Lat 38°57'30", long 120 "29' 05", in SE^ sec. 23, T. 13 N., R. 13 E., on left 

bank 1.3 miles downstream from South Pork and 20 miles east of Georgetown.

Drainage area. 198 sq mi.

Records available. November 1909 to June 1914 {published as "near Quintette"), May 1943 

to September 1957.

Gage. Water-stage recorder. Altitude of gage is 3,350 ft {from topographic map). 

Nov. 21, 1909, to June 8, 1914, at site 0.4 mile upstream at different datum.

Average discharge . 17 years {1910-13, 1943-57), 587 cfs {425,000 acre-ft per year).

Extremes. Maximum discharge during year, 11,500 cfs May 18 (gage height, 12.51 ft); minimum, 12 cfs Sept. 27, 28.

1943-57: Maximum discharge, 51,000 cfs Dec. 23, 1955 {gage height, 18.76 ft), from 

rating curve extended above 11,000 cfs on basis of slope-area determination at gage 

height 18.10 ft; minimum, 3.4 cfs Nov. 10, 11, 12, 13, 1955.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Flow regulated beginning in 1884 by Loon Lake {usable capacity, 8,000 acre-ft) on 

Gerle Creek, where most of stored water is diverted out of the watershed in Georgetown 

Divide ditch {see following page). Low summer flows augmented by release from streamflow maintenance dams built during 1950-56 on eight small headwater lakes {total controlled capacity, 1,295 acre-ft).

Revisions (water yeargl. WSP 1285: 1943(M), 1945(M), 1951.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 14

1.6 33

2.0 59

2.5 103

3.0 160

3.5 234

4.0 338

5.0 670

6.0 1,210

7.0 1,920

4.0

Feb. 14 to Sept. 3O

12

165

380

5.0 

6.0 

8.0 

10.0

11.0

730

1,230

2,800

5,490

7,500

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

35

35

40

40

45

40

45

50

60

60

90

82

65

50

40

40

40

40

40

40

40

40

45

45

50

114

384

131

85

192

190

2,293

74.0

4,550

Nov.

130

113

105

98

108

135

153

188

205

2J.2

195

161

140

117

94

82

74

70

65

50

58

54

51

50

48

46

46

45

44

*43

2,980

99.3

5,910

Dec.

43

43

43

46

61

47

49

67

73

70

176

594

37T

338

221

175

148

130

118

106

97

79

93

83

78

72

68

73

71

69 

68

3,776

122

7,490

Jan.

62

59

63

55

56

55

50

58

49

63

64

67

254

T56

161

138

118

104

102

106

114

111

105

100

97

95

99

100

94

95 

93

2,983

96.2

5,920

Feb.

90

90

87

88

86

85

88

126

131

115

319

582

961

1,300

990

838

910

784

*622

558

540

554

1,130

2,540

5,190

1,780

1,330

1,020

.......

20,934

748

41,520

Mar.

828

890

797

981

5.510

2,150

1,470

1,120

1,250

955

820

975

792

702

714

662

578

550

540

554

603

519

474

474

522

547

642

910

1,470

1,160 

1,060

29,019

936

57,560

Apr.

890

754

718

895

1,070

1,240

960

940

1,000

1,190

1,170

995

1,010

1.920

1,210

990

842

810 742

674

618

*666

750

828

940

970

1,190

1,440

1,610

1,520

30,532

1,018

60,560

May

1,650

1,900

1,290

1,390

1,780

1,960

1,990

1,760

1,300

1,280

1,180

1,050

1,060

1,060

945

1,250

1,520

5,600

4,490

2,080

1,720

1,710

1,440

1,330

1,540

1,930

2,180

2,23O

1,980

2,070 

2,140

56,805

1,832

112,700

June

2.370

2,250

2,080

2,100

2,180

1,810

1,530

1,470

1,340

1,060

1,040

1,060

1,150

895

750

654

642

*698

788

770

722

674

642

682

662

642

575

575

568

47_0

32,809

1,094

65,080

July

451

404

532

300

285

262

242

228

191

168

162

144

134

121

114

104

93

88

87

83

75

68

62

59

55

52

48

47

44

41 

38

4,562

147

9,050

Aug.

35

53

50

28

28

26

26

25

24

25

22

21

21

20

20

20

20

20

19

*19

18

18

18

17

17

17

16

16

16

16 

16

665

21.5

1,320

Sept.

16

T6

16

15

15

15

15

14

14

14

14

14

14

14

14

14

14

15

15

15

14

14

14

13

13

13

12

Tz

13

14

425

14.2

843

Calendar year 1956; Max 6,01O Mln 35 Mean 733 Ac-ft 532,500

Water year 1956-57: Max 5.60O Mln 12 Mean 514 Ac-ft 372,500

Peak discharge (base. 5,500 cfs). Feb. 24 (11 p.m.) 4,500 cfs (9.59 ft); Mar. 5. (8 a.m.) 3.70O cfs 

(8.79 ft); May 18 (8 p.m.) ll.SOO cfs (12.51 ft)._______________________________________ 

» Discharge measurement made on this day. 

Note. No gage-height record Oct. 1-11, 14-25; discharge estimated on basis of records for South

Fork Rubicon River at mouth near Georgetown.
SACRAMENTO RIVER BASIN 479 

Georgetown Divide ditch above Pilot Creek, near Georgetown, Calif.

Location. Lat 38°56'18", long 120°28'42", in SE-£ sec. 26, T. 13 N., R. 13 E., on left 

bank 0.7 mile northeast of Uncle Toms Cabin and 20 miles east of Georgetown.

Records available. May 1947 to September 1957. Prior to October 1954, published as 

Georgetown ditch above Pilot Creek, near Georgetown.

Gage. Water-stage recorder and wooden control. Altitude of gage is 5,080 ft (from topographic map). Prior to June 10, 1949, staff gage at same site but at different datum.

Average discharge. 8 years (1949-57), 6.26 cfs (4,530 acre-ft per year).

Extremes. 1947-57: Maximum daily discharge, 27 cfs Aug. 15-19, 1949, Sept. 30, 1950; 

no flow for several months each year.

Remarks. Records good. Ditch receives water from Loon-Lake (capacity, 8,000 acre-ft) 

via Gerle Creek, Rubicon River basin, and at times from South Fork Rubicon River, and 

discharges into Pilot Creek. Flow is then diverted from Pilot Creek about 8 miles 

downstream, for domestic and irrigation purposes in vicinity of Georgetown (see Georgetown Divide ditch near Georgetown on following page).

Discharge, In cubic feet pe econd, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

C3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

18

T8

17

17

16

16

16

17

15

15

a!5

a!5

a!4

3.5

al.2

*1.2

.9

.7

.7

.5

.3

.2

.1

.3

.2

.7

0

O

*0

0

0

221.0

7.13

438

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

May

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

0

*o

2.0

0

0

0

**.7

g

14

17.6

0.57

35

June

12

11

10

9.1

8.0

9.5

10

9.8

9.8

9.9

11

11

11

10

11

12

*12

12

11

11

11

11

12

11

11

13

13

13

12

ii

332.1

11.1

659

July

15

14

14

15

15

15

18

18

19

18

18

17

18

18

18

18

18

19

19

19

19

19

19

19

18

19

19

19

19 

19

19

551

17.8

1,090

Aug.

19

18

19

19

19

19

19

19

19

19

19

19

19

19

19

19

20

19

19

*20

19

19

19

19

20

20

20

20

20 

20

20

597

19.3

1,180

Sept.

20

20

20

20

20

20

20

20

20

20

1920"

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20 

20

599

20.0

1,190

Calendar year 1956: Max 20 Mln 0 Mean 4.85 Ac-ft 3,520

Water year 1956-57: Max 20 Mln 0 Mean S.35 Ac-ft 4,590

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

station near Georgetown.
480 SACRAMENTO RIVER BASIN

Georgetown Divide ditch near Georgetown, Calif.

Location Lab 38°54'12", long 120°36'12", near center of sec. 11, T. 12 N. , R. 12 E. , on 

left bank 1.0 mile downstream from intake and 12 miles east of Georgetown.

Records available. February 1910 to January 1914, March 1947 to September 1957. Published as Pilot Creek ditch near Quintette, 1910-14, and as Georgetown ditch near 

Georgetown, 1947-54.

Gage. Water-stage recorder. Altitude of gage is 4,170 ft (from topographic map). February 1910 to January 1914 staff gage about 6 miles downstream at different datum.

Average discharge. 10 years (1947-57), 13.7 cfs (9,920 acre-ft per year).

Extremes. 1947-57: Maximum daily discharge, 37 cfs Dec. 22, 1955; minimum dally, 0.1 cfs 

 Nov. 14, 1951, Nov. 16-18, 1952.

Remarks. Records good except those for periods of ice effect, which are fair. Ditch 

diverts from Pilot Creek about 1 mile above station on Pilot Creek for domestic and 

irrigation use in vicinity of Georgetown, (see also Georgetown Divide ditch above 

Pilot Creek, near Georgetown, preceding page).

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

>-3

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

22

22

*22

22

21

21

22

22

21 

21

25

21

18

11

9.1

*8.3

7.8

7.3

7.5

7.1

6.7

6.6

7.8

5.1

4.8

6.4

9.4

6.6

5.2

9.4

5.0

411.1

13.3

815

Nov.

1.0

1.0

.9

.8

75

.8

2.4

3.6

3.6 

3.6

3.7

3.7

3.7

3 7

3.7

3.7

3.8

3.8

3.9

379

3.8

3.7

3.7

3.7

3.6

3.7

3.7

3.6

*3.3

3.3

92.2

3.07

183

Dec.

3.3

3^4.

3.4

3.4

3.4

3.4

3.3

3.3

3.3 

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.4

3.4

3.4

3.3

3.3

3.2

3.2

3.1

3.1

5.0

3. 0

*3.0

5.0

5.0 

5.0

100.7

3.25

200

Jan.

5_.0_

5.0

5.0

5.0

5.0

5.0

3.0

5.0

5.0 

5.0

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.1

5.2

5.2

3.2

5.5

3.3

3.3

5.5

5.4

5.4

3.5

5.5 

5.6

98.1

5.16

195

Feb.

5-7

3\ 3.'e7

3.9

4.0

4.1

4.2

4.4

4.5 

4.7

9.4

11

5.2

5.4

5.2

5.2

5.2

5.4

*5.2

5.2

6.1

6.6

7.9

13

14

10

8.1

6.4

-

175.5

6.27

348

Mar.

5.7

5.2

4.8

5.2

9.1

8.9

8.1

7.2

8.1

6.7

5.8

6.8

6.1

5.7

5.7

5.4

5.0

4.7

4.5

4.2

4.0

3.7

3.5

5.1

2.8

2.6

2.4

2.2

2^5 

2.5

154.0

4.97

505

Apr.

2.5

2.1

.9

.8

.7

.6

.5

.5

.4 

.5

1.5

1.5

2.1

6.2

*6.7

6.6

6.6

6.8

7.0

6.8

6.8

6.7

6.6

6.6

6.2

8.3

10

10

16

£3

168.7

5.62

555

May

21

23

20

21

25

23

26

25

20 

20

22

24

24

24

24

24

21

27

20" 18

22

21

20

*22

24

22

22

21

21

20 

20

685

22.1

1,560

June

20

19

18

21

23

24

24

24

ft

24

24

25

24

24

25

*24

24

23

24

25

25

26

25

24

24

25

24

23

24

706

25.5

1,400

July

25

25

24

24

24

24

26

26

26 

26

26

25

25

26

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25

25 

25

777

25.1

1,540

Aug.

2524"

24

24

25

25

25

25 

25

24

24

24

24

24

24

24

24

*24

24

24

24

24

24

24

24

24

24

24

25 

25

752

24.5

1,490

Sept.

24

24

24

24

24

25

23

25

23 

25

22

25

23

25

23

25

24

24

24

25

23

22

22

22

21

21

22

22

22

24

688

22.9

1,560

Calendar year 1956: Max 31 Mln 0.4 Mean 12.0 Ac-ft 8,730

Water year 1956-57: Max 26 Mln 0.8 Mean 13.2 Ac-ft 9,530

* Discharge measurement made on this day.

Note. Stage-discharge relation affected by Ice Dec. 5-14, Dec. 20 to Feb. 9.
SACRAMENTO RIVER BASIN 481

Pilot Creek near Georgetown, Calif.

Location. Lat 38°54'14", long 120°36'11", in NW£ sec. 11, T. 12 N., R. 12 E., on left 

bank 2.6 miles upstream from Mutton Canyon and 12 miles east of Georgetown.

Drainage area. 15.1 sq mi.

Records available.--January 1946 to September 1957. Records for station "near Quintette" 

1910-14 are not equivalent to those for this station as indicated in annual watersupply papers 1947-54.

Gage.--Water-stage -recorder. Altitude of gage is 4,120 ft (from topographic map). 

Jan. 1, 1946, to June 25, 1952, at site 300 ft downstream at datum 5.67 ft lower.

Average discharge. 11 years, 27.0 cfs (19,550 acre-ft per year).

Extremes. Maximum discharge during year, 474 cfs Feb. 24 (gage height, 4.37 ft), from 

rating curve extended above 160 cfs on basis of slope-area determination for flood of 

Nov. 18, 1950; minimum daily, 0.3 cfs Sept. 23-27.

1946-57: Maximum discharge, 3,040 cfs Nov. 18, 1950, Dec. 23, 1955, from rating 

curves extended above 190 cfs and 79 cfs respectively, on basis of slope-area determination at gage height 10.84 ft for flood of Nov. 18, 1950; minimum, 0.3 cfs many days in 

1949, 1955, 1956-57.

Remarks. Records good. Some inflow and diversion above station (see records for Georgetown Divide ditch above Pilot Creek near Georgetown, p. 479, and Georgetown Divide 

ditch near Georgetown, preceding page, which diverts about 1 mile above station).

Revisions. WSP 1215: Drainage area.

Rating tables, water year 1956-57 (gage height. In feet, and discharge. In cubic feet per second) 

Oct. 1 to Nov. 29 Nov. 29 to May 18 May 19 to Sept. 30

1.2

1.3

1.4 

1.6 

1.8 

2.0 

2.4

0.4

.8

1.4

3.1

5.9

11

30

1.7

3.0 

3.5

5.2

10

23

43

94

205

350

1.5

1.6

1.7

1.8 r.9

2.0

2.4 

2.6 

2.9 

3.2

79

130

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

32

-3

24

25

26

27

28 

29

30

31

Total

Mean

Ac-ft

Oct.

0.5

.5

*.5

.5

.5

.5

.6

.6

.6

.6

1.8

1.3

.8

.3

.6

*.6

.4

.4

.4

.4

.4

.4

1.2

3.8

3.8

5.3

7.0

4.7 

4.3

28

21

92.8

2.99

184

Nov.

14

TT

9.2

8.6

8.0

.6

.9

.9

.9

.6

.4

.3

.2

.0

.9

.9

.8

.8

.8

3.9

3.8

3.8

3.8

3^7

3.7

3.7

3.8

3.7 

*3.7

3.9

156.3

5.21

310

Dec.

3.9

3.9

3.8

778

8.3

8.0

7.0

7.O

6.4

6.6

8.6

876

7.4

7.4

6.4

6.0

5.8

5.6

5.4

5.6

5.8

5.2

5.2

4.8

5.2

6.6

7.4

*6.0 

5.0

4.6

4 . 8

187.1

6.04

371

Jan.

4.8

5.8

5.6

5.8

4.5

4.2

6.0

5.4

6.4

8.6

6.6

6.4

25

TF

11

8.9

9.2

10

10

8.0

14

12

9.2

8.3

8.3

8.9

9.2

8.6

10

11

11

277.7

8.96

551

Feb.

10

8.6

8.9

8.0

8.0

7.7

176

18

16

13

20

16

20

22

20

20

22

20

*20

21

31

34

99

247

302

180

138

108

1,446.8

51.7

2,870

Mar.

91

80

72

79

168

160

122

104

118

92

82

99

82

75

78

72

65

61

57

53

53

48

45

43

41

40

39

39 

46

46

45

2,295

74.0

4,550

Apr.

44

45

37

36

35

34

33

32

31

30

28

28

26

41

*31

28

29

33

33

32

30

30

28

27

27

23

20

20 

13

7.2

886.2

29.5

1,760

May

8.0

14

14

9.8

4.8

4.6

4.6

9.5

13

12

8.0

5.2

5.0

5.2

4.8

4.6

£ % 4.5

-99 122

86

78

66

*50

44

37

32

28 

25

23

23

910.6

29.4

1,810

June

24

22

20

15

12

12

12

11

11

11

9.8

9.8

9.0

7.5

5.8

6.1

*5.6

5.6

5.4

4.2

3.8

1.5

1.4

1.4

1.4

1.3

1.3

H1.2

234.5

7.82

465

July

1.2

T72

1.1

1.1

1.0

1.0

1.1

1.0

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.8

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

.8 

.8

.7

.7

28.2

0.91

56

Aug.

0.7

,7

,7

.7

.6

tf

.5

.5

.5

.6

.6

.6

,6

.6

.6

.6

.6

*.5

.5

.5

.5

.5

.5

.5

.5

.5

.5 

.5

.5

.5

17.2

0.55

34

Sept.

0.

.2

73

.3

.3

.3

.4 

.4

-iJL

12.0

0.40

24

Calendar year 1956: Max 305 Min 0.4 Mean 32.9 Ac-ft 23,870

Water Water year year 1956-57: 1956-57: Max Max 3O2 3O2 Mln Mln O.3 O.3 Mean Mean 17.9 17.9 Ac-ft Ac-ft 12,980 12,980______________

Peak discharge (base, 150 cfs).--Feb. 24 (9:30 p.m.) 474 cfs (4.37 ft); Mar. 5 (7 p.m.) 192 cfs 

(3.45 ft); Hay 18 (9 p.m.) 178 efs (3.39 ft)_______________________________________ 

* Discharge measurement made on this dav.
482 SACRAMENTO RIVER BASIN

Middle Pork American River near Auburn, Calif.

Location. Lat 38°55'05", long 121°00'20", in SE£ sec. 6, T. 12 N., R. 9 E. , on left 

bank 0.5 mile upstream from abandoned Mountain Quarry Co. plant, 1.9 miles upstream 

from mouth, and 3.5 miles northeast of Auburn.

Drainage area. 619 sq mi.

Records available.--October 1911 to September 1957. Prior to October 1934, published as 

"near East Auburn, Calif."

Gage. Water-stage recorder. Datum of gage is 568.5 ft above mean sea level (riverprofile survey). Prior to December 1930, staff gage at site half a mile downstream at 

different datum.

Average dls charge. 46 years, 1,404 cfs (1,016,000 acre-ft per year).

Extremes. Maximum discharge during year, 26,400 cfs May 18 (gage height, 19.55 ft); minimum, 80 cfs Sept. 25.

1911-57: Maximum discharge, 79,000 cfs Dec. 23, 1955 (gage height, 33.9 ft), from 

rating curve extended above 32,000 cfs on basis of one float measurement at 68,200 cfs; 

minimum, 20 cfs Sept. 6, 1931, Sept. 19, 1934.

Remarks. Records good. Small storage and diversions above station. See Remarks for 

Rubicon River near Georgetown.

Revisions (water years).--WSP 861: 1928.

tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to May 18 May 19 to Sept. 30

4.0 

5.0

77

108

190

315

640

1,020

6.0

8.0

10.0

13.0

16.0

1,480

2,630

4,690

9,440

16,400

1.5 

2.0

3.0

78

90

133

205

304

547

5.0

6.0

8.0

10.0

13.0

16.0

1,230

1,690

2,880

4,690

9,440

16,400

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21L'2

^3

24

25

26

27

28

29

30 

31

Total

Mean

Ac -ft

Oct.

*82

81 

81

82

82

85

84

86

96

99

117

158

184

153

127

113

108

106

105

104

101

97

107

169

150

134

455

506

292

372 

929

5,445

176

10,800

Nov.

*460

348 

292

267

254

262

300

327

382

411

411

379

324

292

259

229

209

196

188

180

164

162

164

158

153

150

148

148

143

L4JL

7,501

250

14,880

Dec.

143

139 

*138

146

283

306

213

177

171

194

205

583

796 654"

562

424

364

321

295

272

252

236

211

222

211

200

192

186

186

186

8,656

279

17,170

Jan.

182

*175 

167

171

166

164

162

167

188

157

166

194

588

756 559"

418

364

321

292

506

493

386

336

312

315

315

281

256

259

244 

239

9,249

298

18,350

Feb.

*246

275 

264

244

24?

244

252

497

678

496

579

,050

,380

,220

,990

,660

,740

,660

,360

,180

,320

,630

,960

,000

13,400

6,170

5,000

3,420

-

59,159

2,113

117,300

Mar.

2,650

2,420 

2,390

2,440

9.520

*8,600

5,480

3,890

4,040

3,400

2,760

3,150

2,890

2,480

2,450

2,440

2,110

1,920

1,780

1,700

1,730

1,560

1,380

1.290

1,290

1,290

1,340

1,580

2,300

2,570 

2,250

87,090

2,809

172,700

Apr.

*2,170

1,840 

1,680

1,820

2,040

2,380

2,110

1,900

1,920

2,100

2,200

1,970

1,860

5.160

2,880

2,140

1.980

2,090

1,940

1,760

1,620

1,560

1,610

1,680

1,780

1,780

1,940

2,220

2,570

2,520

61,220

2,041

121,400

May

*2,570

3,270 

2,630

2,270

2,650

3,100

3,160

3,050

2,430

2,190

2,080

1,880

1,810

1,900

1,700

1,820

2,220

8,220

14,200

6,260

4,860

4,510

3,850

3,430

3,310

3,530

3,840

3,920

3,550

3,540 

3,430

111,180

3,586

220,500

June

3,670

,770 

* ,360

,270

,330

,150

,560

,440

,330

,960

,840

,760

,850

,600

,320

,190

,110

,130

,220

,230

,170

,100

,05O

,050

1,040

i .''ooo

934

901

894

828

54,057

1,802

107,200

July

735

696 

648

588

552

531

508

485

462

418

390

373

350

335

319

302

285

266

254

250

242

231

219

205

196

188

178

171

166

158 

152

10,853

350

21,530

Aug.

146

140 

134

132

128

126

138

125

121

118

114

110

108

106

104

102

101

99

96

95

94

94

92

92

91

90

89

88

88

88 

89

3,338

108

6,620

Sept.

90

89 

88

86

85

85

84

83

82

82

*81

81

81

81

82

82

83

84

86

88

86

84

82

81

80

81

82

90

96

97

2,542

84.7

5,040

Calendar year 1S56: Max 20,100 Mln 79 Mean 1,837 Ac-ft 1,334,000

Water year 1956-57; Max 14,200 Mln 80 Mean 1,151 Ac-ft 833,500

Peak discharge (base, 6,500 cfs).--Feb. 25 (l a.m.) 19,600 cfs (17.2 ft); Mar. 5 (10:30 p.m.) 

12.000 cfs (14.22 ft); May 18 (12 p.m.) 26.40O cfs (19.55 ft).__________________

* Discharge measurement made on this day.
SACRAMENTO RIVER BA3IN 483

Echo Lake conduit near Phillips, Calif.

Location. Lat 38°50', long 120°02', in NW^ sec. 6, T. 11 N., R. 18 E., on right bank 

0.5 mile downstream from intake and 2 miles northeast of Phillips.

Records available. August 1923 to November 1957. August 1923 to November 1943 published 

as Echo Lake flume near Vade. September 1944 to November 1952 published as Echo Lake 

conduit near Vade.

Gage. Water-stage recorder. Altitude of gage is 7,500 ft (from topographic map). Prior 

to July 16, 1929, staff gage at site 0.4 mile upstream at different datum.

Extremes.--1923-57: Maximum daily discharge, 28 cfs Sept. 9, 10, 1952; no flow most of 

each year.

Remarks. Records good except those for period of no gage-height record, which are fair. 

No flow except during periods for which discharge is published. Conduit diverts from 

Echo Lake in Truckee River basin into basin of South Pork American River for power and 

irrigation.

Cooperation.--Water-stage-recorder graph and four discharge measurements furnished by 

Pacific Gas & Electric Co., in connection with a Federal Power Commission project.

Discharge, In cubic feet per second, September to November 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Sept.

0

5

0

14

25_

*24

24

24

24

24

24

24

24

23

23

22

22

23

*24

23

23

22

21

20

21

20

15

11

8.9

6.3

559.2

18.6

1,110

Oct.

5.7

8.9

14

12

10

5.9

.3.5

4.5

4.6

a4.1

a3.8

a3.6

a3.3

*a3.0

*7.4

9.6

9.0

8.4

4.9

0

0

0

4.6

7.4

7.1

6.9

6.7

6.5

6.4

6.0

5.8

183.6

5.92

364

Nov.

5.4

5.3

5.0

4.9

4.8

4.4

4.2

3.9

3.6

2.7

1.2

1.2

2.6

3.9

4.5

4.9

5.1

5.3

5.6

2^

00"

0

0

0

0

0

0

0

0

80.8

2.69

160

Calendar year : Max Mln Mean Ac -ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, recorded range 

In stage, normal recession, and by Interpolation.

510529 O - 59 - 32
484 SACRAMENTO RIVER BASIN

Pyramid Creek near Phillips, Calif.

Location --Lat 38°50'30", long 120°07'30", in NE£ sec. 32, T. 12 N., R. 17 E on left 

Philli downstream from main dam at Lake Aloha and 3.3 miles northwest of

Drainage area. 4.2 sq mi, approximately.

Records available. September 1922 to September 1957. Prior to October 1952 published 

Outlet 1"^ LakeS °Utlet near Vade> and Ocfcober 1952 t° September 1955 as "Medley Lakes

Gage.-Water-stage recorder. Altitude of gage is 7,960 ft (from topographic map). 

Average discharge . 35 years, 17.8 cfs (12,890 acre-ft per year).

1922-57: Maximum discharge, 388 cfs Dec. 8, 1950 (gage height, 4.80 ft) from 

rating curve extended above 130 cfs by logarithmic plotting; no flow at times in some 

years .

Remarks - -Re c ords good except those for periods of ice effect or no gage-height record, 

which are poor. Contents in Lake Aloha (formerly Medly Lakes) above station, 160 acreft on Sept. 30, 1956, and 100 acre-ft on Sept. 30, 1957.

Cooperation. Water-stage-recorder graph and five discharge measurements furnished by 

Pacfic Gas & Electric Co. in connection with a Federal Power Commission project.

Revisions (water years). WSP 1395: 1923(M), 1925.

 Rating table, water year 1956-57, except period of Ice effect (gage 

height, in feet, and discharge, In cubic feet per second)

0.5 1.8

.6 2.8

.7 4.0

.8 5.9

1.0 

1.3

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

4.2

4.2

4.2

4.2

4.2

4.2

4.8

5.3

4.6

4.4

*5.3

5.1

4.6

4.2

4.0

3.9

3.9

3.7

3.7

3.7

3.7

3.6

5.1

4.2

4.4

5.9

7.6

5.5

5.0

7.6 

6.9

145.9

4.71

289

Nov.

5-5

5.1

5.0

5.0

5.0

5.0

5.0

5.1

5.1

5.1

5.0

4.8

4.6

4.4

4.4

4.2

4.0

4.0

3.9

3.9

3.9

3.9

3.9

3.9

Ail

3.7

3.7

3.7

3.7

3.7

131.9

4.40

262

Dec.

3.6

3.6

3.6

b3.5

> b3

> a3

95.3

3.07

189

Jan.

) a2 

' 5

. a.d

69.0

2.23

137

Feb.

> a2.5

> a3

-

79.0

2.82

157

Mar.

I"

a4

> a5

> a4

a5

a6

|

1

1 a?

J

7.2

7.2

7.4

7.2

156.0

5.03

309

Apr.

7.9

7.6

6.4

6.2

6.4

6.9

6.4

6.4

6.2

6.6

6.9

6.6

6.4

7.6

6.4

5.9

5.9

5.7

5.5

5.5

5^3.

5.5

5.9

5.9

5.9

6.4

7.4

Sol

8.4

8.2

196.7

6.56

390

May

9.3

9.3

6.6

7.9

10

11

12

9.6

7.2

6'. 9

7.4

7.9

7.4

6.9

7.9

11

12

16

13

8.7

7.6

7.4

7.6

9.0

12

15

17

*22

36

38 

11

400.6

12.9

795

June

43

44

45

47

49

59

92

93

89

89

89

91

89

87

83

83

77

69

70

69

69

69

68

57

39

37

36

38

37

36

1,943

64.8

3,850

July

36

24

13

14

15

21

25

28

*28

29

28

27

26

24

22

21

20

21

20

19

17

21

17

21

20

35

48

48

48

47 

47

830

26.8

1,650

Aug.

47

46

46

45

45

*45

45

44

43

43

43

43

42

42

42

42

41

41

41

41

40

40

40

39

39

38

38

38

38

38

1,292

41.7

2,560

Sept.

37

3T

36

36

*36

36

35

35

35

35

34

34

34

33

33

32

32

32

31

31

31

30

30

28

28

27

21

6.6

§4

894.8

29.8

1,770

Calendar year 1956: Max 139 Min - Mean 29.1 Ac-ft 21.1OO

Water year 1956-57: Max 93 Min - Mean 17.1 Ac-ft 12.36O

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for nearby 

streams.

b Stage-discharge relation affected by Ice.
SACRAMENTO RIVER BASIN 485

Silver Lake Outlet near Kirkwood, Calif.

Location.--Lat 38°40', long 120°08', in SW£ sec. 32, T. 10 N., R. 17 E., on right bank 

1,000 ft downstream from Silver Lake Dam and 3 miles southwest of Kirkwood.

Drainage area. 14.9 sq mi.

Records available.--September 1922 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 7,200 ft (from topographic map).

Average discharge.--35 years, 33.8 cfs (24,470 acre-ft per year).

Extremes. Maximum discharge during year, 374 cfs June 1 (gage height, 4.13 ft); minimum 

daily, 1.7 cfs Aug. 14, 15.

1922-57: Maximum discharge, 676 cfs Nov. 21, 1950 (gage height, 6.03 ft), from 

rating curve extended above 200 cfs by logarithmic plotting; no flow for many days in 

February and March 1948, Jan. 13, 14, 1954.

Remarks.--Records good. Contents in Silver Lake were about 3,800 acre-ft on Sept. 30, 

1956, and about 2,000 acre-ft on Sept. 30, 1957. Some water, in addition to that 

released through dam and over spillway, escapes from Silver Lake through porous 

rock formation.

Cooperation. Water-stage-recorder graph and 10 discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project

Rating tables, water year 1956-57, except periods of loe effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Apr. 30 

0.8

May 1 to Sept. 30

4.4 

8.5

1.1 

1.5 

2.0

0.6 

.7

.9 

1.0

0.9 

2.1 

4.4 

8.5

1.5 53

2.0 99

3.0 210

4.1 370

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

?2

-3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

66

66

64

62

*62

60

59

57

56

55

53

51

50

*49

47

46

43

42

39

 39

37

35

33

30

*28

27

27

27

27

26

26

1,389

44.8

2,760

Nov.

26

25

25

24

23

23

22

22

21

21

21

21

21

20

19

18

16

14

11

10

9.0

9.0

9.5

12

11

10

9.5

9.0

8.5

7^6

498.1

16.6

988

Dec.

7.1

6.2

6.2

6.2

6_

8

10

13

16

9.0

7.6

11

14

16

11

17

17

16

15

15

14

13

12

12

11

10

9.5

9.0

8.5

8.5

8 0

348.8

11 .3

692

Calendar year 1956: Max 340

Jan.

7.6

7.6

7.6

6.6

6.6

6.2

6.2

6.2

6.2

6.2

5.8

5.4

8^

6.6

6.2

6.2

6.2

5.8

5.4

8.5

8.5

6.6

6.2

6.2

6.2

6.2

6.2

6.2

6.6

6.6

6 . 2

202.8

6.54

402

Feb.

6.2

672

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

6.2

8.0

14

17

19

20

20

21

21

21

21

22

23

23

23

23

24

-

394.4

14.1

782

Mar.

23

23

23

23

24

24

23

23

23

24

23

24

23

23

23

23

23

23

23

22

22

22

22

22

21

21

21

21

22

23

24

704

22.7

1,400

Apr.

24

24

24

24

25

26

30

29

30

30

32

33

33

35

35

36

36

37

37

37

35

35

35

35

35

36

37

39

43

11

994

33.1

1,970

May

88

135

125

139

187

185

168

181

172

161

146

132

116

109

99

63

35

40

41

41

41

42

42

41

42

44

54

112

152

175

204

3,312

107

6,570

June

279

361

27T

251

*265

265

242

211

173

126

92

90

99

101

80

56

58

66

86

96

96

94

94

93

91

88

78

56

55

51

4,070

136

8,070

July

45

40

22

9.0

6.2

2.

2.

2.

 2.

2.

 2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

179.3

5.78

356

Aug.

2.1

2.1

2.1

2.1

35

38

TT.8

.8

.8

.8

.8

.8

.8

.7

T77

18

32

33

32

32

33

32

33

33

33

33

32

33

32

32

32

602.4

19.4

1,190

Sept.

32

32

32

48

74

*91

95

95

95

92

74

64

62

61

59

58

58

56

 55

54

52

51

50

49

48

47

46

44

42

41

1,757

58.6

3,480

Mln 1.7 Mean 54.7 Ac-ft 39,680

Water year 1956-57: Max 361 Mln 1.7 Mean 39.6 Ac-ft 28,660

Discharge measurement made on this day.
486 SACRAMENTO RIVER BASIN

Twin Lakes Outlet near Kirkwood, Calif.

Location. Lat 38°42', long 120°03', in SW£ sec. 18, T. 10 N. , R. 18 E. , on right bank 

500 ft downstream from main dam and outlet gate of Twin Lakes and 1 mile east of 

Kirkwood.

Drainage area. 12.4 sq mi.

Records available.--September 1922 to September 1957 (October 1934 to September 1957, 

except May and June 1945, include flow over Twin Lakes spillway).

Gage. Water-stage recorder and concrete control for outlet, and staff gage with oncedaily readings for spillway. Altitude of gage is 7,900 ft (from topographic map).

Average discharge.--34 years (1922-44, 1945-57), 35.4 cfs (25,630 acre-ft per year), 

including flow over Twin Lakes spillway.

Extremes.--Maximum combined daily discharge during year for outlet and spillway, 191 cfs 

June 8; minimum daily, 0.1 cfs Nov. 27, 28.

1922-57: Maximum combined daily discharge for outlet and spillway, 405 cfs 

Dec. 8, 1950; minimum daily, 0.1 cfs Mar. 25-31, 1944, Nov. 27, 28, 1956.

Remarks. Records good. No diversion. Flow regulated by Twin Lakes, contents of which 

were 19,600 acre-ft on Sept. 30, 1956, and 14,100 acre-ft on Sept. 30, 1957. Flow 

over Twin Lakes spillway occurred June 5 to July 22, and is included in table below.

Cooperation. Water-stage-recorder graph and 12 discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

?2

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

49

55

54

55

56

56

58

58

57

56

57

58

58

62

70

74

78

84

84

87

*86

*87

87

86

*86

78

59

59

62

69

69

2,094

67.5

4,150

Nov.

68

68

68

68

68

66

57

52

17

11

11

27

49

60

74

85

78

78

87

99

99

99

99

99

45

1.7

.1

.1

25

109

1,745.9

58.2

5,460

Dec.

112

112

112

105

92

100

112

97

87

87

80

47

8.5

16

52

45

62

75

76

91

86

68

68

68

68

68

70

70

45

37

37

2,229.3

71.9

4,420

Jan.

37

40

47

47

47

47

47

54

68

68

59

54

22

8.8

12

23

30

30

27

22

24

35

27

16

19

24

55

49

41

41

41

1,141.8

36.8

2,260

Feb.

41

4T

41

41

41

41

34

24

19

19

16

10

9.8

10

10

5.7

3.3

3.5

5.5

5.3

3.3

3.5

5.5

5.5

3.3

3.3

3.5

5.3

-

-------

443.1

15.8

879

Mar.

5.5

3.3

3.5

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.5

5.3

3.5

5.3

3.5

5.5

5.5

3.3

3.5

5.5

3.3

3.3

3.3

3.7

3.7

3.7

5.0

3.3

103.2

3.55

Apr.

5.3

3.3

3.3

3.3

3.5

5.7

3.5

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.5

3.3

3.5

3.3

3.5

3.3

3.5

5.5

3.7

3.7

4.1

4.1

3.7

3.7

102.6

3.42

205 | 204

May

4.1

3.7

377

3.

4.

4.

4.

4.

3.

3.

3.

3.

3.

3.

3.

3.

4.

5.

5.

5.

3.

3.

3.

5.

4.

4.

4.

4.

4.

4.

5.5

126.7

4.09

251

June

5.3

4.9

4.9

4.9

*68

94

135

191

190

186

155

133

166

186

157

124-

124

103

78

97

153

170

170

170

170

170

131

97

97

97

3,630.0

121

7,200

July

102

102

97

97

96

96

96

34

*7.1

11

*22

34

38

38

30

24

24

32

36

36

45

49

49

49

49

49

49

49

49

49

53

1,591.1

51.3

3,160

Aug.

59

59

59

65

li

35

67

*67

71

72

72

76

77

77

1!

67

57

60

*61

61

64

65

68

70

54

49

51

56

59

60

60

1,932

62.3

3,830

Sept.

62 " 65

65

52

5.4

*3.

5.

3.

5.

5.

8.7

32

42

44

45

46

47

47

*49

47

46

46

52

57

57

61

72

81

82

£5

1,292.6

43.1

2,560

Calendar year 1956: Max 281 Min 0.1 Mean 55.3 Ac-ft 40,120

Water year 1956-57: Max 191 Min 0.1 Mean 45.0 Ac-ft 32,580

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 487

South Fork American River near Kyburz, Calif.

Location Lat 38°45'49", long 120°19'39", in SW^SW^ sec. 29, T. 11 N., R 15 E on right 

bank Reside U. S. Highway 50, 0.8 mile downstream from Silver Pork of South Pork and 

1.9 miles southwest of Kyburz.

Drainage area. 196 sq mi.

Records available.--August to December 1907, October 1922 to September-1957 Prior to 

October 1956, records for river and El Dorado Canal published separately.

Gage. Water-stage recorder. Altitude of gage is 3,840 ft (from topographic map).

Average discharge. 35 years (1922-57), 399 cfs (288,900 acre-ft per year), combined flow 

01 South Pork American River near Kyburz and El Dorado Canal.

Extremes (river only).--Maximum discharge during year, 4,020 cfs May 18 (gage height 

6.3i ft); minimum daily, 2.4 cfs Dec. 6. '

1922-57: Maximum discharge, 14,500 cfs Nov. 21, 1950 (gage height, 9.40 ft), from 

rating curve extended above 6,500 cfs on basis of contracted-opening determination of 

peak flow; minimum daily, 0.3 cfs Nov. 9-11, 1928;

Remarks. Records good. Plow at low and medium stages greatly regulated by four reservoirs since beginning of record (total usable capacity, 37,100 acre-ft, revised) 

Records of daily discharge presented herein include flow of El Dorado Canal which 

diverts 0.5 mile above station, from left bank of South Pork American River in sec 29, 

T. 11 N., R. 15 E., for power and irrigation; water is returned to river 20 miles 

below station.

Cooperation. Water-stage-recorder graph and 15 discharge measurements, and for the canal, 

water-stage-recorder graph and 9 discharge measurements, furnished by Pacific Gas & 

Electric Co.' in connection with a Federal Power Commission project.

Revisions (water years). WSP 1445: 1923(M), 1925(M), 1927(M), 1928 (river only),

1935-37(M).Revised figures of combined discharge, in cubic feet per second, for highwater period in the water year 19S8, superseding those published in WSP 671, are 

given herewith:

1928 

Mar. 25 ................. 5,170

26 ................. 4,300

27 ................. 2,500

Month

March 1928 .....................................

Calendar year 1928 ...........................

Maximum

5,170

Minimum

16

Mean

359

Runoff In 

acre-feet

261,000

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

167

175

175

174

177

167

172

199

182

171

175

178

171

164

166

168

165

169 

170

169

167

166

194

172

174

201

253

T5T

162 

155

189

5,508

178

10,920

Nov.

181

182

183

183

184

187

192

T5T

180

168

157

140

159

155

155

169

158

155 

*143

*162

*167

164

162

164

158

87

83

57

49

124

4,595

153

9,110

Dec.

17G

172

172

175

159

149

181

198

170

159

220

291

T9T

167

148

145

154

162 

*159

162

179

139

148

141

142

139

137

146

122

104

5,017

162

9,950

Jan.

98

98

107

104

108

104

106

108

128

165

146

118

156

111

*92

87

104

109 

111

98

103

109

121

92

87

86

1(32

134

142

134

132

3,498

113

6,940

Feb.

122

111

124

124

118

106

109

109

95

£2

199

236

332

430

311

321

355

290 

254

235

224

208

297

515

*967

628

535

448

-

7,895

282

15,660

Mar.

377

381

351

798

Wf

747

627

518

526

434

405

424

376

350

355

331

300

291 

288

293

304

282

271 zTe"

299

*297

334

454

673

549

545

13,223

427

26,230

Apr.

466

409

426

519

626

700

598

602

617

714

704

629

634

928

721

627

548

501 

470

449

420

429

440

478

*558

610

723

871

937

972

18,326

611

36,350

May

1,060

*1,140

880

1,010

1,280

1,420

1,440

1,260

973

934

931

784

764

*763

695

865

906

1,960 

1,710

1,080

985

1,030

950

928

1,050

1,280

1,480

1,580

*1,530

1,560

1,700

35,918

1,159

71,240

June

1,940

2,100

1,980

1,910

1,860

1,790

1,720

1,670

1,480

1,310

1,210

1,190

1,190

1,080

972

851

821

834 

845

845

853

852

845

804

774

739

690

601

565

511

34,832

1,161

69,090

July

483

446

413

347

321

308

315

287

*207

188

185

*190

194

183

174

162

155

150 

158

158

149

161

161

151

154

148 168'

167

162

158

155

6,758

218

13,400

Aug.

162

160

157

155

*164

171

153

160

158

160

159

157

161

159

158

161

161

159 

163

162

160

163

162

165

160

143

142

145

147

150

148

4,885

158

9,690

Sept.

148

151

150

*148

147

158

167

168

166

164

152

145

170

170

170

169

174

*173 

170

170

162

158

157

163

161

161

161

165

154

155

4,827

161

9,570

Calendar year 1956 : Max 3,610 Mln 49. Mean 650 Ac-ft 472,100

Water year 1956-57 : Max 2,100 Mln 49 Mean 398 Ac-ft 288,200

Peak discharge, river only (base, 2,000 cfs). May 18 (10 p.m.) 4,020 cfs (6.31 ft); July 1 

(10:30 p.m.) 2,510 cfs (5.59 ft).____________________ ___

* Discharge measurement of river made on this day.
488 SACRAMENTO RIVER BASIN

Alder Creek near White Hall, Calif.

Location. Lat 38°45'19", long 120°22'17", in NE^SE^ sec. 35, T. 11 N. , R. 14 E. , on 

right bank 0.9 mile upstream from mouth and 2.2 miles southeast of White Hall.

Drainage area.--22.8 sq mi.

Records available. October 1922 to September 1957 (include diversions by pipeline).

Gage . Water-stage recorder. Altitude of gage is 3,840 ft (from topographic map). Prior 

To July 23, 1924, staff gage at same site and datum.

Average discharge . 35 years, 37.3 cfs (27,000 acre-ft per year).

Extremes (creek only). Maximum discharge during year, 749 cfs Feb. 24 (gage height, 

3.89 ft); no flow for many days October to December.

1922-57; Maximum discharge, 5,500 cfs Dec. 23, 1955 (gage height, 8.40 ft, from 

floodmarks), from rating curve extended above 500 cfs by logarithmic plotting; no flow 

at times in several years.

Remarks. Records good except those for period of ice effect, which are poor. Records 

(except extremes) include computed flow in feeder pipeline that diverted Just above 

station into El Dorado Canal Oct. 2 to June 14.

Cooperation. Water-stage-recorder graph and 14 discharge measurements on Alder Creek 

furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project. Readings of head on diversion dam and valve opening to pipe line furnished 

by Pacific Gas & Electric Co.

Revisions (water years).--WSP 1215: 1928(M). WSP 1445: 1925(M), 1929, 1935-36(M), 

1938(M), 1940-43(M), 1945(M).

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

L3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.7

1.0

1.0

.9

.9

.9

.9

.8

.9

*1.0

.2

.3

.O

.0

.0

.9

.9

.9

.9

.8

.8

.8

1.1

1.8

1.7

1.3

1.3

1.4

2.0

7.4

44.3

1.43

88

Nov.

3.6

278

2.4

2.4

2.2

2.2

2.1

2.1

2.1

2.1

2.1

2.0

2.0

2.0

2.1

2.1

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2..0

2.0

1.9

179

1.9 

1.9

63.9

2.13

127

Dec.

1.9 179"

1.9

1.9

2.1

2.0

2.0

1.9

1.9

1.9

2.9

4.2

4.1

4.1

4.2

4.2

4.1

3.8

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.4

3.4

3.4

3.4

3.3

3.3

94.3

3.04

187

Jan.

3.2

572

3.2

3.2

3.2

3.2

3.2

3.3

3.3

3.3

3.3

3.3

b9.2

*blO

b9.8

9.8

9.5

9.0

8.8

8.4

8.2

7.9

6.9

6.9

6.9

6.9

6.9

6.8

6.7

6.6

6.5

190.6

6.15

378

Feb.

6.5

6.5

6.4

6.4

6.4

6.6

6.9

7.2

7.6

7.8

11

*19

20

29

29

31

34

30

28

27

30

32

89

297

*280

*203

170

131

-

1,558.3

55.7

3,090

Calendar year 1956: Max 546 Min 0.7

Mar.

108

107

96

102

549

306

205

161

159

132

119

125

111

101

96

88

81

77

73

69

68

62

58

56

54

*51

52

' 60

88

95

98

3,407

110

6,760

Apr.

92

87

84

85

87

88

82

78

76

78

74

72

69

116

100

89

85

80

76

72

68

64

62

61

*61

61

61

63

68

72

2,311

77.0

4,580

May

73

*81

77

72

73

73

73

72

69

69

68

66

64

*61

52

50

50

103

226

T6T

155

152

137

121

108

98

91

85

78

72

66

2,802

90.4

5,560

June

61

55

50

44

38

34

29

26

26

24

*20

18

17

16

15

14

12

11

10

10

9.5

8.8

7.6

7.0

7.6

7.0

7.0

7.0

6.4

6.0

603.9

20.1

1,200

July

c A " *

5.0

4.6

4.2

4.2

3.5

4.2

3.5

*3.5

3.5

3.2

3.2

2.9

2.6

2.6

2.6

2.6

2.6

2.3

2.3

2.1

1.9

2.1

2.1

1.9

1.9

1.7

1.7

1.5

1.5

1_._3

88.2

2.85

175

Aug.

.2

.2

.2

.2

* .2

.2

.3

.2

.2

.3

.3

.2

.2

.2

.0

.9

.9

.8

.8

.7

.7

.7

.6

76

.6

.6

.6

.7

.7

.7

.7

29.4

0.95

58

Sept.

0.7

.7

.6

.6

.7

.7

.7

.8

.8

.7

.7

.7

.7

.7

.7

.7

.4

*76

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.6

18.8

0.63

37

Mean 53.0 Ac-ft 38,460

Water year 1956-57: Max 349 Mln 0.4 Mean 30.7 Ac-ft 22,240

Peak discharge, river only (base, 120 cfs).--Feb. 24 (10 p.m.) 749 cfs (3.89 ft); Mar. 5 (6 p.m.) 

579 cfs (5.16 ft); May 18 (11 p.m.) 551 efs (5.09 ft).___________________________________ 

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
SACRAMENTO RIVER BASIN 489

Silver Creek at Union Valley, Calif.

Location. Lat 38°51'55", long 120°25'35", in SE£ sec. 20, T. 12 N., R. 14 E., on right 

bank 0.6 mile downstream from confluence of Big Silver Creek and Jones Fork Silver 

Creek, near lower end of Union Valley, and 6.6 miles north of Riverton.

Drainage area. 82.7 sq mi.

Records available. October 1924 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 4,530 ft (from topographic map).

Average discharge. 32 years (1924-27, 1928-57), 215 cfs (155,700 acre-ft per year).

Extremes. Maximum discharge during year, 4,430 cfs May 18 (gage height, 10.18 ft), from 

rating curve extended above 2,200 cfs as explained below; minimum daily, 6.4 cfs 

Sept. 14, 15, 24-27.

1924-57: Maximum discharge, 15,800 cfs Dec. 23, 1955 (gage height, 18.85 ft), 

from rating curve extended above 2,200 cfs on basis of slope-area determination at 

gage height 16.55 ft; minimum, 1.9 cfs Aug. 27', 28, 1931.

Remarks. Records good except those for periods of ice effect, which are fair. No storage or diversion above station.

Revisions (water years) . WSP 1215: 1928(M) , 1938(M) , 1943(M).

Rating tables, water year 1956-57, except periods of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

0.6 8.5

.8 18

1.1 38

1.5 82

2.0 165

3.0 387

4.0 704

5.0 1,120

2.0 

3.0

4.O 

5.0 

7.0

154

380

704

1,120

2,160

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21"2

24

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

To- 10

10

10

12

10

10

14

14

12

32

29

24

22

*19

17

15

14

14

14

14

13

19

22

23

59

~53 132

38

122

73

880

28.4

1,750

Nov.

59

53

51

53

59

68

79

102

114

TT2

101

79

69

53

43

»40

37

36

31

28

31

29

29

29

22

28

27

27

28

27

1,549

51.6

3,070

Dec.

27

27

27

30

29

25

28

43

44

46

b60

blSO

165

151

95

78

65

60

54

51

46

40

51

43

42

39

4O

50

53

52

46

1,787

57.6

3,540

Jan.

41

40

41

33

37

34

32

35

33

40

41

42

109

122

T02

73

64

60

59

58

67

65

60

58

57

59

58

56

55

56

58

1,745

56.3

3,460

Feb.

60

64

62

60

5£

60

61

102

101

82

bllO

blSO

b250

b350

b320

b280

b270

»b220

b200

195

190

194

357

718

1,290

719

550

436

-

7,510

268

14,900

Mar.

354

400

349

408

1.510

948

646

495

540

405

357

408

336

302

311

280

254

245

243

247

270

236

223

230

258

256

294

405

615

495

463

12,583

406

24,960

Apr.

375

318

331

425

517

561

451

457

457

540

520

442

436

788

5l4

430

362

334

306

290

266

*2?5

275

299

364

416

527

646

731

704

13,357

445

26,490

May

734

746

498

622

804

860

840

650

445

476

422

414

425

416

391

581

629

2, lOO

1,440

700

632

690

571

581

661

832

884

880

769

78O

332

22,305

720

44,240

June

952

8S8

816

820

820

625

554

524

466

397

394

394

375

292

256

223

230

256

»273

254

225

212

208

210

192

176

158

154

136

119

11,579

386

22, 970

July

~W107

87

79

74

69

69

62

54

48

44

43

40

38

36

33

30

28

27

25

24

22

22

20

18

18

16

15

15

14

_13

1,289

41.6

2,560

Aug.

13

I?

12

12

11

11

11

11

10

10

9.9

9.5

9.5

9.1

9.1

8.7

8.3

8.3

»8.3

8.3

8.3

8.3

7.9

.9

.6

.6

 .3

.3

.3

7.6

286.4

9.24

568

Sept.

7.6

7.6

7.3

7.3

7.3

7.0

7.0

7.0

6.7

6.7

6.7

6.7

6.7

6.4

6.4

6.7

7.0

7.9

7.9

7.6

7.3

7.0

6.7

6.4

6.4

6.4

6.4

6.7

7.0 

8.7

210.5

7.02

418

Calendar year 1956: Max 2,24O Mln 9.6 Mean 308 Ac-ft 223,400

Water year 1956-57: Max 2,100 Mln 6.4 Mean 206 Ac-ft 148, 9OO

Peak discharge (base, 960 cfs).--Feb. 25 (5 a.m.) 1,760 cf3 (6.33 ft); Mar. 5 (7 a.m.) 1,5OO cfs 

(5.85 ft); Apr. 28 (10 p.m.) 1,000 cfs (4.75 ft); May 1 (10 p.m.) 1,OOO cfs (4.75 ft); May 5 

(3 p.m.) 1,340 cfs (5.50 ft); May 18 (8 p.m.) 4,430 cfs (10.18 ft); June 1 (8 p.m.) 1,540 cfs 

(5.91 ft) . _____ ___ _____ ____ _________ ____________________

* Discharge measurement made on this day. 

b Stage-discharge relation affected by Ice.
490 SACRAMENTO RIVER BASIN

South Pork Silver Creek near Ice House, Calif.

Location. Lat 38°49'18", long 120°21'37", in SE-jSW^- sec. 1, T. 11 N. , R. 14 E., on left 

bank 0.3 mile upstream from Peavine Creek, 0.9 mile northeast of Ice House, and 

5.9 miles northeast of Riverton.

Drainage area. 28.4 sq mi.

Records available. October 1924 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 5,300 ft (from topographic map).

Average discharge.--33 years, 74.9 cfs (54,200 acre-ft per year).

Extremes.--Maximum discharge during year, 1,070 cfs May 18 (gage height, 4.22 ft), from 

rat ing curve extended above 540 cfs as explained below; minimum, 1.8 cfs Sept. 6 

(gage height, 0.34 ft).

1924-57: Maximum discharge, 3,940 cfs Dec. 23, 1955 (gage height, 6.71 ft), from 

rating curve extended above 540 cfs on basis of slope-area determination at gage height 

6.69 ft; minimum, 0.1 cfs Aug. 21 to Sept. 6, 1931.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are fair. No storage or diversion above station.

Revisions (water years).--WSP 1395: 1928, 1938.

Rating tables, water year 1956-57, except period of Ice effect (gage 

height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Feb. 18

2.9 

6.8

Feb. 19 to Sept. 30

1.2- 

1.6

2.0

140

232

0.3 

.4 

.5

1.0 

3.1

7.0

l.O SO

1.2 74

1.5 125

2.0 238

3.0 520

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

3.2

2.9

T^

3.2

3.2

2.9

2.9

7.4

9.8

7.4

11

11

12

9.8

*8.6

6.8

5.8

5.0

5.0

5.0

4.2

4.2

5.4

6.8

8.0

13

34

23

17

25

24

290.4

9.37

576

Nov.

23

19

17

18

20

23

27

32

40

41

39

32

28

21

*17

16

13

12

7.4

8.6

9.8

8.6

7.4

6.8

678

6.8

7.4

6.8

9i2

7.4

531.0

17.7

1,050

Dec.

7.4

7.4

6.8

6.3

6.3

6.5

7.0

10

12

15

20

45

4O

35

30

20

17

14

13

12

11

11

12

11

10

9.5

9

10

11

11

10

446.2

14.4

885

Jan.

9

9

8

8

8

8

8

8

8

8

9

10

25

23

20

17

15

14

14

15

16

15

14

13

13

13

13

13

13

13

13

393

12.7

780

Feb.

13

13

13

13

13

13

14

17

16

17

35

70

130

160

140

120

14O

90

*55

46

43

39

53

89

174

138

101

82

-

1,847

66.0

3,660

Mar.

68

66

60

71

174

144

129

103

96

76

69

70

64

59

59

54

52

49

47

48

51

48

45

46

51

54

60

80

123

114

110

2,340

75.5

4.64O

Apr.

91

78

77

99

129

155

133

136

133

164

171

146

144

199

160

138

114

99

88

82

74

*74

76

83

110

140

183

229

255

243

4.OO3

133

7,940

May

260

269

201

229

296

336

249

291

206

192

176

174

178

171

162

236

264

510

456

243

222

240

215

220

255

328

376

376

323

331

357

8,342

269

16,550

June

402

402

376

373

382

328

281

262

240

204

197

204

208

167

140

117

116

140

155

*155

138

133

136

142

136

129

121

121

108

89

6,102

203

12,100

July

83

77

71

60

59

56

50

46

38

35

33

30

28

25

24

22

21

20

20

18

16

14

13

13

12

11

10

9.6

8.5

7J5

938.6

30.3

1,860

Aug.

7.0

6.5

6.0

5.5

5.5

5.5

5.5

5.1

4.7

4.3

4.3

4.0

3.7

3.4

3.4

3.4

3.1

3.1

*3.1

3.1

2.8

2.8

2.6

2.6

2.6

2.4

2.4

2.4

2.4

2.4

2.4

118.0

3.81

234

Sept.

2.4

2.4

2.2

2.2

2.2

2.2

2.0

270

2.0

2.0

2.0

2.0

2.2

2.2

2.2

2.2

2.4

2.6

276

2.4

2.4

2.2

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

65.0

2.17

129

Calendar year 1956: Max 591 Hin 2.9 Mean 107 Ac-ft 77,890

Water year 1956-57: Max 510 Min 2.0 Mean 69.6 Ac-ft 50,40O

Peak discharge (base, 340 cfs).--May 6 (11 p.m.) 423 cfs (2.71 ft); May 18 (9 p.m.) 1,070 cf 

(4.22 ft); May 27 (9:30 p.m.) 474 cfs (2.87 ft); June 1 (8 p.m.) 538 cfs (3.O5 ft).

* Discharge measurement made on this day.

Note.--Stage-discharge relation affected by Ice Dec. 5 to Feb. 19 (no gage-height record Jan. 17 

to Feb. 18; discharge estimated on basis of weather records, 1 discharge measurement, and records 

for Silver Creek at Union Valley and near Placerville).
SACRAMENTO RIVER BASIN 491

Silver Creek near Placerville, Calif.

Location. Lat 38°47'30", long 120°35'15", in NE^ sec. 24, T. 11 N., R. 12 E., on right 

bank 0.2 mile upstream from mouth and 12 miles northeast of Placerville.

Drainage area. 176 sq mi.

Records available. December 1921 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 2,070 ft (from topographic map). Prior 

ro Oct. 19, 1930, at site 400 ft downstream at different datum.

Average discharge.--35 years (1922-57), 412 cfs (298,300 acre-ft per year).

Extremes.--Maximum discharge during year, 6,030 cfs May 18 (gage height, 9.22 ft), from 

rating curve extended above 3,900 cfs as explained below; minimum daily, 32 cfs 

Sept. 24-28.

1921-57: Maximum discharge, 27,500 cfs Dec. 23, 1955 (gage height, 14.50 ft), from 

rating curve extended above 3,900 cfs on basis of slope-area determination at gage 

height 14.25 ft; minimum, 5.5 cfs Sept. 18, 1934.

Remarks. Records good. No storage or diversion above station.

Revisions (water years). WSP 1215: 1928(M), 1938, 1940(P), 1943(P), 1945(M).

Rating table, water year -1956-57 (gage height, in feet, 

and discharge, in cubic feet per .second)

1.7 

1.9 

2.2 

2.6 

3.0

26

41

71

124

190

3.5 

4.0 

5.0 

6.0 

8.0

316

510

1,040

1,760

3,950

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27

28

30

31

Total

Mean

Ac-ft

Oct.

*40" 40

41

44

45

45

45

49

52

55

75

78

71

68 

63

60

59

56

57

55

53

52

69

75

68

82

227

140

102

213

233

2,412

77.8

4,780

Nov.

132

120

106

102

106

113

126

143

164

166

158

138

120

106 

90

81

76

72

70

5§

67

66

63

63

62

60

61

61

61

64

2,873

95.8

5,700

Dec.

61

60

61

71

114

79

70

72

87

*96

107

272

2BT

208 

158

130

111

100

88

86

78

69

78

73

69

63

62

66

73

75

72

3,060

98.7

6,070

Jan. -

64

63

66

61

63

61

58TO"

61

67

75

81

183

TE4 

150

130

116

107

106

161

151

135

124

121

124

123

118

118

109

106

104

3,240

105

6,430

Feb.

106

113

109

104

99

99

107

186

170

143

214

285

454

631 

590

486

526

462

394

356

394

422

776

1,630

2,640

1,510

1,170

920

-

15,096

539

29,940

Mar.

730

746

690

782

2,660

2,090

1,430

1,090

1,190

932

800

944

788

680 

685

636

568

538

518

502

530

474

454

T?0" 446

466

490

590

878

830

776

25,403

819

50,390

Apr.

670

577

559

645

764

860

730

725

685

818

836

700

665

1,090

872

700

622

595

554

522

478

478

*474

490

559

618

730

902

1,070

1,020

21,008

700

41,670

May

1,060

1,200

806

842

1,110

1,270

1,310

1,150

752

740

710

655

665

685 

600

782

1,000

2,480

2,920

1,420

1,200

1,280

1,060

1,020

1,050

1,290

1,420

1,450

1,230

1,260

1,300

35,717

1,152

70,840

June

1,450

al,400

al,350

al,350

al,300

al,150

a950

a900

a850

a700

a680

a680

a600

*a540 

494

422

410

442

486

478

430

398

386

418

379

363

320

313

290

249

20,158

672

39,980

July

228

2T4

194

174

167

156

156

142

129

118

113

107

99

97 

93

88

84

82

81

81

75

73

72

71

69

66

63

62

61

60

59

3,334

108

6,610

Aug.

56

54

52

51

51

51

51

50

49

48

46

46

44

43 

43

42

42

40

39

39

38

38

38

37

3£

36

36

36

36

36

*37

1,341

43.3

2,660

Sept.

38

3T

36

35

34

34

34

33

33

33

33

33

33

33 

33

33

34

36

37

35

34

33

33

32

52

32

32

32

33

38

1,018

33.9

2,020

Calendar year 1956: Max 4,450 Min 40 Mean 587 Ac-ft 426,100

Water year 1956-57: Max 2,920 Min 32 Mean 369 Ac-ft 267,100

Peak discharge (base. 1,600 cfs). --Feb. 25 (4:30 a.m.) 3.480 cfs (7.65 ft): Mar. 5 (8 a.m.) 

2,950 cfs (7.20 ft); May 7 (l a.m.) 1,750 cfs (5.99 ft); May 18 (11 p.m.) 6,030 cfs (9.22 ft);

May 27 (1 a.m.) 1,860 cfs (6.11 ft); June 1 (12 p.m.) 2,160 cfs (6.44 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, recorded range 

in stage, and records for station at Union Valley.
492 SACRAMENTO RIVER BASIN

South Pork American River near Camino, Calif.

Location. Lat 38°46'20", long 120°42'05", in SE^NW^ sec. 25, T. 11 N., R. 11 E., on right 

bank 400 ft upstream from Iowa Canyon Creek, 1.1 miles downstream from intake of 

American River flume, and 2.8 miles northwest of Camino.

Drainage area. 497 sq mi.

Records available. October 1922 to September 1957. Prior to October 1956, records for 

river and conduit published separately.

Gage. Water-stage recorder. Altitude of gage is 1,630 ft (from topographic map). 

Nov. 1, 1950, to Dec. 5, 1951, staff gage at same site and datum.

Average discharge. 35 years, 960 cfs (695,000 acre-ft per year), combined flow of South 

Fork American River near Camino and American River flume.

Extremes (river only). Maximum discharge during year, 10,400 cfs May 19 (gage height, 

14.91 ft); minimum daily, 3.9 cfs Nov. 27.

1922-57: Maximum discharge, 49,800 cfs Dec. 23, 1955 (gage height, 32.6 ft, from 

floodmarks), from rating curve extended above 24,000 cfs on basis of computation of 

peak flow over dam; minimum daily, 1.3 cfs Aug. 24, 1931.

Remarks. Records good. Records of daily discharge presented herein include flow of 

American River flume which diverts 1.1 miles above station, from right bank of South 

Pork American River in sec. 24, T. 11 N., R. 11 E., for power development; water is 

returned to river at Rock Creek powerhouse 5.4 miles below station. Plow partly 

regulated by four reservoirs since beginning of record (total usable capacity, 37,100 

acre-ft). Water diverted by El Dorado Canal used for power and returned to river above 

station except for about 40 cfs, May to October, and about 7 cfs for remainder of year, 

which is used for irrigation and domestic use in vicinity of Placerville.

Cooperation. Water-stage-recorder graph and 16 discharge measurements, and for the flume, 

water-stage-recorder graph and 16 discharge measurements, furnished by Pacific Gas & 

Electric Co. In connection with a Federal Power Commission project.

Revisions (water years). WSP 931: 1928, 1938, 1940(M).

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

213

209

201

221

234

227

213

232

258

*257

265

275

266

248

238

236

236

226

233

237

233

231 

267

295

258

284

550

418

310 

441

659

8,651

279

17,160

Nov.

375

352

321

331

343

330

333

396

401

406

381

344

309

315

288

257

305

261

259

232

243

271 

257

258

275

149

140

14T

154 

178

8,610

287

17,080

Dec.

258

260

252

271

407

268

242

225

288

308

347

625

334

480

395

343

316

*311

306

291

290

261 

267

261

252

241

231

241

252

222

221

9,536

308

18,910

Jan.

205

197

206

205

206

213

205

227

202

195

240

459

468

443

341

*279

251

248

253

346

292

255 

262

272

244

232

207

212

223

£28

228

8,042

259

15,950

Feb.

252

272

235

229

23?

242

250

447

424

332

*473

689

909

1,280

1,160

949

1,090

955

818

754

823

865 

1,500

2,760

5,080

*3,000

2,450

1,920

-

30,393

1,085

60,280

Mar.

1,550

1,500

1,410

1,580

4,840

4,150

2,940

2,270

2,460

1,990

1,730

2,040

1,770

1,560

1,530

1,470

1,290

1,230

1,160

1,090

1,160

1,060 

1,010

990

*974

994

1,000

1,230

1,740

1,770

1, 620

53,108

1,713

105,300

Apr.

1,560

1,310

1,230

1,380

1,590

1,830

1,610

1,580

1,500

1,720

1,770

1,590

1,500

2,550

1,960

1,600

1,450

1,590

1,510

1,220

1,160

1,120 

1,120

*1,150

1,500

1,440

1,620

1,900

2,260

2,160

46,660

1,555

92,550

May

*2,510

2,700

1,970

1,990

2,490

2,910

2,980

2,800

2,000

1,860

1,770

1,650

*1,620

1,670

1,470

1,760

2,110

4,500

6,020

3,320

2,890

2,910 

2,570

2,450

2,430

2,810

*3 , 200

5,430

3,020

3,100

5,220

81,750

2,656

162,100

June

5,610

5,880

3,570

3,450

3,470

3,160

2,790

2,770

2,570

*2,180

2,070

1,980

2,030

1,820

1,580

1,400

1,540

1,380

1,440

1,430

1,380

1,560 

1,320

1,560

1,240

1,230

1,120

1,010

977

832

59,709

1,990

118,400

July

740" 762

660

588

564

521

521

*506

423

363

306

331

347

317

295

287

279

264

258

281

256

225 

253

244

237

225

236

234

241

225

211

11, 180

561

22,180

Aug.

217

241

219

217

204

216

228

*220

214

211

210

211

202

198

202

205

202

198

198

196

196

195 

199

199

201

185

159

159

158 

755

159

6,174

199

12,250

Sept.

161

161

159

159

158

169

171

185

207

195

192

192

190

186

186

207

197

*207

222

*2T2

204

198 

197

196

196

196

196

197

198

198

5,690

190

11,290

Calendar year- 1956 : Max 9,520 Min 140 Mean 1,516 Ac-ft 1,101,000

Water year 1956-57 : Max 6,020 Min 140 Mean 903 Ac-ft 653,400

ik discharge, river only (base, 4,100 cfs).--Feb. 25 (2 a.m.) 6,500 cfs (11.68 ft); Mar. 5 

\7 p.m.) 5,280 cfs (10.73 ft); May 18 (ll:50 p.m.) 10,400 cfs (14.91 ft); June 2 (1 a.m.) 

4,970 efs (10.42 ft).

* Discharge measurement of river made on this day.

(7
SACRAMENTO RIVER BASIN 493

South Fork American fliver near Lotus, Calif.

Location.--Lat 38°49'05", long 120 0 56'45", in SW£ sec. 11, T. 11 N., R. 9 E., on left 

bank 0.4 mile downstream from Greenwood Creek, 2.4 miles northwest of Lotus, and 

3.3 miles northwest of Coloma.

Drainage area. 678 sq mi.

Records available. May 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 635 ft (from topographic map).

Average discharge. 6 years, 1,317 cfs (953,500 acre-ft per year).

Extremes. Maximum discharge during year, 14,100 cfs May 19 (gage height, 11.67 ft); 

minimum, 162 cfs Sept. 5, 6.

1951-57: Maximum discharge, 71,800 cfs Dec. 23, 1955 (gage height, 21.37 ft); 

minimum, 92 cfs Oct. 26, 1955.

Maximum stage known since 1862 and prior to beginning of record in May 1951, 

20.4 ft Nov.'21, 1950, from floodmarks (discharge, 64,500 cfs, from rating developed 

in 1955-56).

Remarks. Records good. Flow partly regulated by 2 powerhouses and 4 reservoirs since 

Beginning of record (total usable capacity, 35,500 acre-ft). Diversions for irrigation and domestic supply above station.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in 'cubic feet per second)

Oct. 1 to Mar. 5 Mar. 6 to Sept. 30

4.3

4.6 

5.0 

5.5 

6.0

177

254

389

654

1,030

7.0

8.0

9.0

10.0

2,090

3,580

5,640

8,440

5.0 

5.5 

6.0

155

240

385

655

1,030

7.0

8.0

9.0

10.0

2,090

3,580

5,640

8,440

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Tota]

Mean

Ac-ft

Oct.

240

240

243

237

243

281

251

*237

269

281

287

303

300

287

278

269

272

266

263

269

272

266 

278

340

316

310

485

522

370

448

846

9,769

315

19,380

Nov.

451

4(56

362

366

381

351

359

385

415

428

410

378

344

348

330

306

320

316

297

284

275

306 

303

294

297

316

203

216

195

218

9,860

329

19,560

Dec.

251

297

303

297

454

420

320

278

306

316

378

509

694

53T

461

385

359

340

340

330

320

320 

290

313

294

287

272

269

287

275

260

10,758

347

21,340

Jan.

260

243

240

251

243

254

251

254

281

237

251

310

568

635

437

362

316

300

290

560

562

337 

303

*310

303

294

272

246

246

254

254

9,919

320

19,670

Feb.

263

290

294

260

257

266

272

474

610

410

517

727

846

1,280

1,300

1,030

1,130

1,040

910

814

950

1,110 

1,680

2,920

*6.190

3,480

2,880

2,160

-

34,360

1,227

68,150

Mar.

1,780

1,630

1,640

2,230

7,000

5,810

3,510

*2,630

2,780

2,300

1,970

2,380

2,160

1,860

1,780

1,860

1,580

1,460

1,360

1,260

1,300

1,220 

1,090

1,080

1,050

1,080

1,080

1,220

1,660

1,900

1,670

63,330

2,043

125,600

Apr.

1,620

1,410

1,290

1,390

1,580

1,810

1,660

1,590

1,530

1,700

*1,780

1,600

1,540

2,280

2,160

1,670

1,600

1,720

1,510

1,370

1,320

1,210 

1,216

1,210

1,320

1,480

1,610

1,850

2,170

2,180

48,370

1,612

95,940

May

2,300

2,690

2,120

1,960

2,350

2,880

2,900

2,820

2,120

1,910

1,830

1,680

1,650

1,720

1,550

1,720

2,090

4,990

8,590

3,990

3,350

3,190 

2,780

2,570

2,480

2,800

3,140

3,580

5,040

3,070

3,090

86,550

2,792

171,700

June

3-, 430

5.800

3,510

3,330

3,350

3,230

2,760

2,720

2,550

2,190

2,050

1,990

1,990

1,850

1,610

1,460

1,380

1,380

1,450

1,440

1,400

1,380 

1,340

1,380

1,280

1,230

1,160

1,050

998

902

59,590

1,986

118,200

July

776" 783

 707

625

589

547

524

524

470

394

357

320

338

365

306

317

300

289

282

275

303

237 

261

268

247

254

240

275

228

253

231

11,890

384

23,580

Aug.

225

234

247

228

225

219

231

240

231

225

225

222

222

213

210

*213

213

210

207

204

204

204 

204

207

210

210

170

168

165

155

168

6,519

210

12,930

Sept.

168

168

165

IBS

165

165

172

178

192

210

198

198

198

192

192

201

216

207

216

225

213

207 

198

198

195

195

204

204

210

216

5,831

194

11,570

Calendar year 1956: Max 13,100 Min 195 Mean 1,639 Ac-ft 1,190,000

Water year 1956-57: Max 8,390 Min 165 Mean 977 Ac-ft 707,600

Peak discharge (base. 5,600 cfs). --Feb. 25 (4:30 a.m.) 7,900 ofs (9.82 ft); Mar. 5 (9 p.m.) 8,080 ofs 

(9.88 ft); May 19 (12:30 a.m.) 14,100 cfs (11.67 ft).

Discharge measurement made on this day.
494 SACRAMENTO RIVER BASIN

Weber Creek near Salmon Palls, Calif.

Location. Lat 38°45'40", long 120°59'20", in sec. 32, T. 11 N., R. 9 E., on left bank 

1 mile upstream from mouth, 3.9 miles east of Salmon Palls, and 6 mi]es southwest of 

Coloma.

Drainage area. 100 sq mi.

Records available. March 1943 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 610 ft (from topographic map). Prior 

to Dec. 12, 1951, at site 150 ft upstream at same datum.

Average discharge.--14 years, 79.3 cfs (57,410 acre-ft per year).

Extremes. Maximum discharge during year, 3,070 cfs May 18 (gage height, 11.83 ft), minimum, 0.9 cfs Aug. 1.

1943-57: Maximum discharge, 11,800 cfs Dec. 23, 1955 (gage height, 15.92 ft), from 

rating curve extended above 6,900 cfs by logarithmic plotting; no flew at times In 

1945, 1947, 1950-52, 1955.

Remarks. Records good except those below 5 cfs, which are fair. Natural flow of stream 

affected by storage reservoirs (combined capacity, about 3,800 acre-ft), diversions 

into the basin from South Pork American River and North Pork Cosumnes River basins 

and out of the basin during the irrigation season, diversions for irrigation, mining, 

municipal, and industrial use. Some water enters the basin from Sly Park unit of the 

Central Valley project.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

4.9

5.1

5.6 

6.1

4.7

4.9

5.1

5.3

5.5

1.0

2.1

3.7

6.7

13

Oct. 31

5.8

6.1

6.5

7.0

to Sept.

29

48

81

139

30

8.0

9.0

10.0

11.0

302

575

1,100

2,050

Discharge, in cubic feet per second, water year' October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

3.5

3.7

3.6

3.6

5.2

3.6

3.9

 4.9

5.3

5.6

6.7

7.0

6.8

6.8

6.8

6.3

6.3

7.0

6.3

4.7

3.6

3.8

7.6

18

9.9

9.6

22

15

12

46

54

307.1

9.91

6O9

Nov.

18

12

9.8

8.4

7.6

7.3

7.3

6.9

6.5

6.7

7.1

7.3

7.6

7.1

6.3

6.3

6.9

6.9

6.5

7.6

8.1

8.4

8.4

8.1

7.6

7.3

7.6

7.6

7.8

7.6

238.6

7.95

473

Dec.

7.1

6.3

6TT

 7.1

35

37

2U

15

12

11

11

9.4

9.4

9.1

9.1

8.8

8.4

8.4

8.8

8.8

8.8

9.4

9.4

9.1

8.4

8.

8.

8.

8.

8.

7.8

342.6

11.1

680

Jan.

8.1

7.8

37T

8.1

8.4

8.8

8.8

11

18

13

11

13

104

69

34

25

20

18

16

166

148

65

46

»37

34

44

36

32

28

25

22

1,093.1

35.3

2,170

Feb.

22

27

26

22

20

20

21

56

57

41

68

55

45

39

34

31

28

26

24

22

76

107

335

677

»686

345

322

188

-

3,420

122

6,780

Mar.

160

140

130

402

1,820

789

337

*234

275

203

163

314

260

202

202

229

164

121

120

106

92

81

72

67

62

59

54

46

47

56

48

7,055

228

13,990

Apr.

61

52

47

42

37

33

30

30

30

28

28

27

25

138

72

53

91

246 rsTj

104

82

72

63

56

49

44

40

36

37

33

1,839

61.3

3,650

May

 30

56

43

35

31

27

25

24

42

46

32

29

27

37

33

27

24

987

m

441

355

226

167

126

102

76

70

55

52

47

47

4,012

129

7,960

June

49

4S

32

25

20

22

20

16

14

20

16

14

11

9.8

9.4

8.4

7.1

6.7

4.7

4.3

4.3

4.3

4.5

3.7

3.5

3.0

375

3.4

3.5

3.7

386.8

12.9

767

July

3.9

3T2

2.4

2.2

1.8

1.7

1.9

1.8

1.8

1.5

1.2

1.1

1.0

TTT

1.8

2.0

1.8

1.4

1.4

1.4

1.7

2.1

2.1

1.9

1.7

1.7

1.2

1.5

1.3

1.5

1.1

54.2

1.75

108

Aug.

1.2

TTJ

1.2

1.4

2.0

2.4

3.0

3.5

2.7

2.3

1.9

2.3

2.2

1.7

 1.4

1.3

1.2

1.4

2.7

3.0

3.1

3.0

3.2

2.7

3.4

4.1

4.7

6.0

S75

5.7

5.7

87.5

2.82

174

Sept.

6.7

5.8

4.6

3.4

3.4

3.7

3.5

3.2

2.7

777

3.8

4.6

5.0

5.7

5.7

5.5

5.8

6.5

6.3

6.5

6,5

5.8

5.2

4.9

5.3

6.1

7.6

8.1

6.9

...JUi

160.4

5.35

318

Calendar year 1956: Max 2,160 Min 1.1 Mean 92.6 Ac-ft 67,240

Water year 1956-57: Max 1,820 Min 1.0 Mean 52.0 Ac-ft 37,680

Peak discharge (base, 2,4OO cfs). Mar. 5 (5 a.m.) 2,440 cfs (11.33 ft); May 18 (5:3O p.m.)

3,070 cfs (11.83 ft).

» Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 495

Folsom Reservoir near Polsom, Calif.

Location.--Lat 38°42'29", long 121 "09'22", in NW^NE^ sec. 24, T. 10 N., R. 7 E., 0.7 mile 

downstream from South Fork American River and 2.3 miles northeast of Folsom.

Drainage area. 1,875 sq mi.

Records available. February 1955 to September 1957.

Gage.--Water-stage recorder. Datum of gage is at mean sea level (levels by Bureau of 

Reclamation).

Extremes. Maximum contents during year, 1,017,700 acre-ft June 8 (elevation, 466.65 ft); 

minimum, 393,000 acre-ft Jan. 11 (elevation, 399.96 ft).

1955-57: Maximum contents, 1.020,300 cfs June 29, 1956 (elevation, 466.87 ft); minimum, 156,600 cfs Nov. 10, 1955 (elevation, 352.70 ft).

Remarks. Reservoir is formed by concrete gravity-type darn with rolled-earth wing darns, 

auxiliary dams, and dikes, completed May 14, 1956; storage began Feb. 25, 1955. Spillway gates installed July 31, 1955; control valves installed July 23, 1956. Usable 

capacity, 1,000,000 acre-ft between elevations 205.5 (invert of lower tier of river 

outlets) and 466.0 ft (gross pool elevation) above mean sea-level, practically all of 

which is available for release. Spillway design flood pool elevation, 475.4 ft (capacity, 1,120,000 acre-ft). Figures given herein represent usable contents. Folsom 

Reservoir is one of the storage units in the Central Valley project.

Cooperation. Record of contents furnished by (J. S. Bureau of Reclamation.

Capacity table, water year 1956-57 (elevation, In 

feet, and usable contents, In acre-feet)

400

410

420

430

393,300

466,800

548,300

637,300

440

450

460

470

732,900

834,700

942,600

1,056,000

Usable contents, In thousands of acre-feet, at 12 p.m., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

M(*)

Oct.

531.6

530.1

528.0

526.1

524.3

522.7

521.0

519.5

518.2

516.5

515.3

514.3

513.3

511.9

510.6

509.4

508.1

506.7

505.7

504.4

503.2

501.6

500.5

499.3

498.5

497.9

497.8

498.4

498.0

499.2 

502.3

414.47

-31,100

Nov.

503.1

503.2

500.8

498.9

496.7

494.2

490.9

489.1

487.7

486.1

484.4

482.6

480.8

478.4

476.0

473.8

471.4

469.2

466.4

464.0

461.5

459.1

456.8

454.2

451.8

449.1

446.4

443.6

440.9

438.3

406.24

-64,000

Dec.

435.4

433.0

430.8

429.6

429.7

430.3

429.5

428.6

427.6

426.7

425.2

424.8

426.1

426.5

426.8

426.8

426.4

425.9

425.3

424.3

422.6

421.8

421.0

420.0

419.0

417.4

415.9

414.1

412.5

411.3 

409.5

402 . 30

-28,800

Jan.

408.1

405.9

403.4

401.4

399.5

398.6

397.4

396.1

395.1

393.5

393.0

393.2

396.1

399.9

401.7

402.9

403.6

404.0

404.6

406.9

409.5

411.0

412.0.

412.5

413.1

413.7

413.6

414.0

414.4

414.7 

414.7

403.02

+5,200

Feb.

414.9

415.6

416.2

415.6

415.0

414.5

414.6

415.8

418.0

419.4

420.8

424.0

428.0

435.7

442.4

447.0

452.2

457.4

461.7

465.4

469.9

476.2

488.0

515.9

572.7

595.5

611.0

618.9

_

428.00

+204,200

Mar.

622.5

625.3

627.7

630.0

637.6

624.0

613.6

604.4

601.1

608.9

613.7

620.2

625.7

628.6

630.3

629.7

626.8

625.1

625.0

625.8

623.9

622.1

620.3

619.1

620.0

621.0

623.2

626.1

632.4

640.1 

646.6

431.00

+27,700

Apr.

652.2

655.8

659.0

664.1

667.2

672.9

677.6

681.1

684.3

689.7

695.3

700.4

705.4

716.7

726.0

729.9

732.3

736.2

738.8

740.3

741.0

740.6

740.6

740.6

741.5

742.6

744.5

746.8

748.9

751.6

441.88

+105,000

May

761.3

774.4

784.0

791.9

801.4

814.1

826.9

839.2

848.2

855.8

862.5

868.4

872.1

874.6

876.1

878.2

881.4

907.4

970.6

981.0

981.6

978.9

972.6

971.9

974.5

978.3

983.6

988.0

988.8

987.9 

987.5

464.00

+235,900

June

992.3

998.2

1,002.2

1,006.0

1,011.2

1,015.5

1,016.8

1,017.7

1,017.5

1,016.0

1,013.7

1,012.8

1,011.9

1,012.7

1,012.4

1,011.1

1,009.5

1,010.2

1,011.2

1,012.0

1,012.5

1,012.2

1,011.2

1,011.4

1,011.1

1,010.5

1,009.5

1,008.4

1,006.4

1,004.1

465.46

+16 , 600

July

1,001.6

999.2

996.6

993.9

990.4

986.7

983.3

979.2

974.3

969.5

965.5

960.8

956.1

952.0

946.9

942.1

937.0

932.0

926.2

920.5

915.5

909.6

904.3

898.9

893.8

888.0

882.4

876.6

870.9

864.8 

858.9

452.29

-145,200

Aug.

853.6

847.8

841.8

835.9

829.7

823.8

817.8

812.0

806.1

800.2

794.5

788.7

782.8

776.9

770.7

764.4

758.4

753.0

746.6

740.1

733.8

727.6

721.5

715.1

708.8

702.3

696.4

689.9

683.6

677.4 

670.9

433.59

-188,000

Sept.

666.8

661.4

656.6

652.3

647.0

642.4

637.6

632.8

628.2

623.1

618.6

614.4

609.9

605.6

601.3

596.9

592.5

588.2

584.3

579.3

574.7

570.4

565.5

561.0

556.5

551.9

547.7

543.7

539.6

534.6

418.39

-136,300

Calendar year 1956.................... t -110,900

Water year 1956-57.................... t +1,200

t Elevation, In feet, at 12 p.m. 

* Change In contents, In acre-feet.
496 SACRAMENTO RIVER BASIN

American River at Fair Oaks, Calif.

Location.--Lat 38°38'15", long 121°15'55", in San Juan Grant, on right bank just upstream 

from old highway bridge and 1,500 ft upstream from the new highway bridge at Pair Oaks, 

Sacramento County, 2.6 miles downstream from Nimbus Dam, 10 miles downstream from 

South Pork, and at mile 19.2.

Drainage area.--1,921 sq mi.

Records available. November 1904 to September 1957.

Gage. Water-stage recorder. Datum of gage is 64.79 ft above mean sea level. Prior to 

Nov. 7, 1930, staff gages or water-stage recorders at several sites within 1,000 ft of 

present site all at datum 1.0 ft higher.

Average discharge. 52 years (1905-57), 3,786 cfs (2,741,000 acre-ft per year); 51 years 

(1905-56), 3,796 cfs (figure published in WSP 1445 is in error), adjusted for storage, 

diversions, and evaporation from Folsom Reservoir since 1955.

Extremes. Maximum discharge during year, 29,900 cfs Mar. 6 (gage height, 12.69 ft); minimum, 456 cfs Jan. 17.

1904-53 (prior to regulation by Polsom Reservoir): Maximum discharge, 180,000 cfs 

Nov. 21, 1950 (gage height, 31.85 ft); minimum, 3.6 cfs Aug. 16, 1924.

1953-57: Maximum discharge, 71,500 cfs (fully regulated) Dec. 24, 1955 (gage 

height, 20.35 ft); minimum, 86 cfs Apr. 7, 1955.

Revisions.--The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

298 

721 

981

Water 

year

1907 

1931 

1943

Date

Mar. 19, 

Mar. 18, 

Jan. 22,

1907 

1931 

1943

Discharge 

(cfs)

156,000 

9,900 

152,000

Gage height 

(feet)

30.4 

8.87 

31.00

Remarks.--Records good. Plow regulated by Polsom Reservoir beginning Feb. 25, 1955, Some 

minor regulation of high flows by temporary pondage during period of construction January 1953 to February 1955. Diurnal fluctuations from Folsom powerplant re-regulated 

by Nimbus Reservoir (capacity, 2,800 acre-ft between normal operating elevations 

118.5 and 125.0 ft) and powerplant. Many diversions above station for irrigation and 

municipal and domestic water supply. Diversions of San Juan Suburban Water District, 

Natomas Water Co., and State of California are made at Polsom Dam. Some inflow from 

Bear and Yuba River basins. Records of chemical analyses and water temperatures for 

the water year 1957 are given in WSP 1523.

Revisions (water years). WSP 1181: 1928(M). Revised figures of discharge, in cubic feet 

per second, for high-water period in the 1910 water year, superseding those published 

in WSP 298, are given herewith:

Month

December 19O9. ...................

Calendar year 19O9. .............

Water year 1909-10. .............

Maximum

98,000

47,000

Minimum

2,740

160

180

Mean

9,380

7,390

5.O4O

Runoff in 

acre-feet

3,650,000
SACRAMENTO RIVER BASIN 

American River at Pair Oaks, Calif. Continued

Rating table, water year 1956-57 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Dec. 1 to Feb. 24)

1.5

2.5 

4.0 

6.0 

9.0 

12.3

570

1,320

3,220

7,200 

15,200 

2-8,600

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2 

3

4

5

6

7

8 

9

10

11

12

13 

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

[total

lean

te-ft

t)

*).

tt)

Oct.

*2,58Q

1,460 

1,400

1,380

1,370

1,350

1,330

1,320 

1,320

1,360

1,320

1,300

1,180 

1,260

1,300

1,240

1,250

1,280

1,270

1,300

1,240

1,270

*1,300

1,240

1,240

1,370

1,350

1,230 

1,270

1,250

1,260

41,590

1,342

82,490

-31,100

4,190

2,670

Nov.

*1,220

1,230 

963

2,000

2,060

2,060

2,030

2,030 

2,060

2,100

2,100

2,080

2,090 

2,090

2,150

2,120

2,070

2,080

2', 060

2,020

2,060

2,040

2,060

2,080

2,060

2,020

2,010

2,020 

2,010

*2,050

59,023

1,967

117,100

-64,000

2,580

1,640

Dec.

1,990

2,010

2,020

1,450

1,490

1,510

1,510

1,530 

1,540

1,530

1,530

1,550

1,550 

1,550

1,510

1,450

1,520

1,610

1,650

1,640

1,660

1,680

1,660

1,610

1,610

1,610

1,640

1,690 

1,690

1,700

*1 , 700

50,390

1,625

99,950

-28,800

2,930

620

Jan.

,680

,710 

,690

,580

,470

,220

,480

,600 

,590

,600

868

,010

,020 

,010

990

982

1,040

974

958

958

950

950

942

942

934

934

92E

926 

926

910

861

35,361

1,149

70,670

+5,200

2,770

560

Feb.

*934

926 342"

94S

1,150

1,160

1,180

1,190 

1,190

1,190

1,190

1,190

1,190 

1,200

1,200

1,210

1,210

1,210

1,210

1,200

1,360

1,770

1,770

2,250

2,480

4,200

*5,24Q

5,220

47,104

1,682

93,430

+204,200

2,540

630

Mar.

5,200

5,260 

5,280

7,270

21,300

*28,2QQ

17,700

13,500 

11,300

5,540

*5,060

5,060

5,320 

5,300

5,460

*7,370

7,420

5,950

*4,700

4,240

4,740

4,860

4,820

4,130

2,900

*2,360

2,250

2,190 

2,220

2,210

2,320

211,430

6,820

419,400

+27,700

2,350

2,150

Apr.

2,340

2,340 

2,520

2,440

2,470

2,390

2,470

2,440 

2,380

2,350

2,430

2,440

2,400 

2,400

2,900

3,900

3,800

3,900

3,900

3,900

3,900

3,900

3,900

3,900

3,990

*4 , 000

4,320

4,620

5.460

5,080

98,890

3,296

196,100

+105/300

4,010

3,860

May

2,070

1,960 

1,870

1,870

1,870

1,870

1,860

1,850 

1,850

1,850

1,850

1,850

2,490 

4,030

3,900

3,940

3,990

4,040

5,060

*1 1,400

12,400

12,400

11,600

8,450

6,980

7,180

7,160

7,700 

8,660

9,170

 8,640

161,810

5,220

320,900

+235,900

4,190

4,810

June

7,020

7,020 

7,000

6,390

5,970

6,010

5,990

6,010 

6,010

5,990

5,970

5,120

5,040 

3,880

3,830

3,850

3,830

2,820

2,800

2,800

2 ; 780

2,760

2,750

2,750

2,800

2,840

2,790

*2 , 700 

2,850

2,850

131,220

4,374

260,300

+16,600

6,210

8,820

July

2,860

2.840 

2,840

2,880

2,900

2,960

2,940

2,970 

3,020

2,980

2,900

2,940

2,940 

2,920

2,920

2,940

2,920

2,980

3,190

3,140

3,110

3,220

3,190

3,200

3,190

3,200

3,200

3,200 

3,200

3,200

3,200

94,090

3,035

186,600

-145,200

6,790

8,910

Aug.

*3,220

3,240 

3,240

3,220

3,220

3,240

3,240

3,170 

3,220

3,240

3,270

3,120

3,110 

3,190

3,270

3,280

3,380

3,350

3,360

3,360

3,360

3,300

3,300

3,300

3,300

3,350

3,360

3,330 

3,330

3,320

3,280

101,470

3,273

201 , 300

-188,000

6,380

7,290

Sept.

2,510

2,510 

2,560

2,560

2,560

2,560

2,550

2,550 

2,580

2,540

2,320

2,340

2,340 

2,340

2,510

2,380

2,440

2,430

2,420

2,440

2,520

2,540

2,560

2,560

2,550

2,620

 2,580

2,450 

2,440

2,480

74,540

2,485

147,800

-136 ,300

5,430

4,720

Adjusted for change in reservoir contents, diversions, and evaporation

Mean 

Ac-ft

947 

58,250

963 

57,320

1,215| 1,1191 5,416 

74,700| 68, 800 1 300, 800

7,345 

451,600

5,193 

309,000

9,202 

565,800

4,906 

291,900

929

57,100

439 

26,970

364 

21,650

Calendar year 1956: Max 33,500 

Water year 1956-57: Max 28,200

Min 

Min

963

861

Mean 

Mean

5,007

3,033

Ac-ft 

Ac-ft

3,635,000

2,196,000

Adjusted

Calendar year 1956: 

Water year 1956-57:

Mean 

Mean

4,981

3,155

Ac-ft 

Ac-ft

3,616,000

2,284,000

* Discharge measurement made on this day.

t Change in contents. In acre-feet. In Folsom Reservoir.

* Total of diversions, in acre-feet, to Natomas Water Company, San Juan Suburban Water Dlstr 

and to the State of California, furnished by Bureau of Reclamation.

tt Evaporation from Folsom Reservoir, in acre-feet, furnished by Bureau of Reclamation. 

Note.--No gage-height record Nov. 4-30, Apr. 13-26; discharge based on releases from Nimbus
498 SACRAMENTO RIVER BASIN

American River at Sacramento, Calif.

Location.--Lat 38°34'05", long 121"25'20", on left bank at H Street Bridge, just east of 

Sacramento, Sacramento County, 6.5 miles upstream from mouth.

Records available.--July to October 1921. October 1929 to October 1932, May 1934 to 

December 1942 (low-water periods only), May 1943 to September 1957.

Gage. Water-stage recorder. Gage is set to datum of Corps of Engineers. Auxiliary 

water-stage recorder 2.8 miles downstream from base gage.

Average discharge.--14 years (1943-57), 3,697 cfs (2,677,000 acre-ft per year).

Extremes.--Maximum discharge during year, about 30,000 cfs Mar. 6; maximum gage height, 

32.04 ft Mar. 6 (backwater from Sacramento River); minimum discharge, 445 cfs Jan. 17. 

1921, 1929-32, 1934-57: Maximum discharge, 106,000 cfs plus estimated overflow of 

70,000 cfs Nov. 21, 1950 (gage height, 45.73 ft); minimum recorded, 21 cfs 

Aug. 14, 1931.

Remarks. Records good except those for periods of indefinite stage-discharge relation, 

which are fair. Flow regulated by reservoirs and powerplants above station. See 

Remarks for station at Fair Oaks. Diversions for irrigation of about 4,400 acres 

between stations at Fair Oaks and at Sacramento. Records of chemical analyses for the 

water year 1957 are given in WSP 1523.

Cooperation. Records collected and prepared in cooperation with California Department of 

Water Resources.

Rating tables, water year 1956-57, except periods of indefinite stage-discharge

relation (gage height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used July 31 to Aug. 9, Sept. 5-20)

Oct. 1 to Feb. 25 Feb. 26 to Sept. 30

17.5 

18.0 

19.0 

2O.O

615

1,180

2,540

4,360

18.5

19.0

21.0

23.0

1,820 

2,540 

6,100 

1O,60O

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

51

Tota]

Mean

Ac-ft

Oct.

*2,600 

1,330

1,550 

1,260

1,400

1,330

1,360

1,320

1,340

1,310

1,590

1,320

1,300

1.200

1,360

1,300

1,250

*1,280

1,520

1,280

1,290

1,510

1,310

1,340

1,270

1,310

1,420

1,310

1,250

1,330 

1,290

42,250

1,362

85,760

Nov.

*1,270 

1,280

1,180 

1,920

2,020

2,040

2,05O

2,060

2,070

2,110

2,110

2,110

2,130

2,140

2,170

2,170

2,110

2,110

2,150

2,040

2,110

2,090

2,090

2,160

2,160

2,130

*2,070

1,930

1,950

*1.960

59,850

1,994

118,700

Dec.

1,950 

1,950

1,960 

1,570

1,490

1,500

1,500

1,540

1,530

1,520

1,520

1,550

1,550

1,550

1,530

1,440

1,500

1,550

1,600

1,600

1,600

1,610

1,610

1,570

1,570

1,570

1,570

1,570

1,610

1,610 

 1,610

49,580

1,595

97,940

Jan.

1,600 

1,620

1,620 

1,570

1,460

1,250

1,450

1,530

1,550

1,550

940

1,010

1,050

1,020

1,010

1,010

798

1,170

988

1,010

1,000

1,000

1,000

*1,000

1,000

1,000

1,000

1,000

1,010

976 

916

56,088

1,164

71,580

Feb.

*1.020 

1,040

1,060 

1,060

1,250

1,300

1,340

1,350

1,550

1,340

1,350

1,550

1,550

1,560

1,560

1,560

1,360

1,360

1,360

1,360

1,410

1,860

1,880

2,150

2,890

*3,750

5,000

5,000

-

49,580

1,771

98,540

Mar.

*5,000 

5,300

5,400 

6,720

* 18,OOO

*29.700

21,400

* 14, 600

*12,600

6,480

*5,330

5,200

5,400

5,400

5,500

7,200

7,400

6,000

4,800

4,500

*4,710

4,730

4,690

4,040

3,230

2,490

2,570

2,500

2,340

2,340 

2,410

217,380

7,012

431,200

Apr.

2,480 

2,480

2,410 

2,480

*2,560

2,460

2,510

2,460

2,410

2,510

2,440

2,580

2,580

2,550

2,410

4,060

4,070

4,110

4,090

4,040

4,150

4,200

4,O60

4,060

*4,060

*4,070

4,200

4,220

5,090

4,960

99,940

3,351

198,200

May

2,510 

2,140

2,060 

2,040

2,000

1,990

1,990

1,990

1,970

1,960

1,970

1.950

2,250

5,680

*5,710

3,750

3,790

3,840

4,150

11,000

*12.500

12,400

12,500

*9,200

7,700

7,600

*7,210

7,500

8,270

8^490

162,490

5,242

322,300

June

 6,710 

6,670

6,690 

6,200

5,640

5,680

5,660

5,660

5,640

5,640

5,660

*5,020

4,830

3,880

5,660

3,640

3,630

*2,890

2,750

2,760

2,730

2,720

2,700

2,700

2,730

2,760

2,750

2,810

2,780

2,780

126,370

4,212

250,700

July

2,800 

2,810

2,800 

2,860

2,880

2,940

2,920

2,940

2,960

*2,960

2,840

2,890

2,910

2,880

2,880

2,880

*2,860

2,880

3,050

3,050

2,970

5,100

5,070

5,080

3,050

5,070

5,080

3,070

3,080

3,080 

3,070

91,710

2,958

181,900

Aug.

5,050 

5,050

5,040 

5,020

3,000

*3,050

3,050

2,940

5,020

5,050

5,120

2,990

2,970

5,040

5,160

5,150

3,240

5,250

5,240

5,260

3,290

3,260

3,240

5,280

5,310

3,370

5,400

3,400

3,370

5,570 

5,390

98,350

3,175

195,100

Sept.

2,840 

2,680

2,720 

2,680

2,650

2,600

2,590

2,560

2,560

2,560

*2,380

2,540

2,340

2,350

2,340

2,350

2,410

2,410

2,400

2,380

2,460

2,480

2,480

2,490

2,510

2,570

*2,590

2,480

2,460

2,480

75,140

2,505

149,000

Calendar year 1956: Max 56.2OO Min 1,180 Mean 5,050 Ac-ft 3,666,000

Water year 1956-57: Max 29,700 Min 798 Mean 3,O37 Ac-ft 2,199,000

* Discharge measurement made on this day.

Note.--Stage-discharge relation indefinite Feb. 26 to Mar. 20, May 20-26; discharge estimated on

basis of 9 discharge measurements and records for station at Pair oaks.
SACRAMENTO RIVER BASIN 499

Sacramento River at Sacramento, Calif.

Location. Lat 38°35'20", long 121°30'15", on left bank 1,000 ft upstream from I Street 

Bridge, in city of Sacramento, and 0.5 mile downstream from American River. Prior 

to Nov. 16, 1956, at site 700 ft downstream.

Records available. January 1904 to July 1905 (gage heights only), June to November

1921, and October 1948 to September 1957 in reports of Geological Survey. In reports 

of California Department of Water Resources 1924-57. November 1879 to May 1888 and 

December 1890 to September 1957 (gage heights only) in reports of U. S. Weather 

Bureau.

Gage. Water-stage recorder. Datum of gage is at mean sea level. Prior to Oct. 15, 

~1912, staff gage in vicinity of I. Street Bridge. Oct. 15, 1912, to Nov. 16, 1956, 

water-stage recorder at various sites in vicinity of I Street Bridge. Prior to 

Nov. 16, 1956, datum of gages at low-water mark of Oct. 23, 1856, 0.12 ft above mean 

sea level, and at 3.10 ft, Corps of Engineers datum.

Average discharge. 9 years (1948-57), 24,040 cfs (17,400,000 acre-ft per year).

Extremes. Maximum discharge during year, 84,700 cfs Mar. 6 (gage height, 25.75 ft); 

minimum daily, 8,730 cfs July 13.

1921, 1948-57: Maximum discharge. 104,000 cfs Nov. 21, 1950 (gage height, 

30.14 ft, site and datum then in use); minimum daily, 5,590 cfs July 20, 1949.

Maximum discharge known prior to Nov. 21, 1950, 103,000 cfs Jan. 17, 1909 (gage 

height, 29.6 ft), from reports of California Department of Water Resources.

Remarks. Records excellent. Natural flow of stream affected by storage reservoirs, 

power developments, bypassing for flood control, diversions for irrigation.and considerable return flow from irrigated areas. Below about 35,000 cfs, the stagedischarge relationship is affected by tidal influences. Records of chemical analyses, 

suspended sediment loads, and water temperatures for the water year 1957 are given in 

WSP 1523.

Cooperation. Records collected and prepare4 In cooperation with the California Department of Water Resources.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3 

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

14,000

13,100

12,900 

12,400

12,100

12,000

12,000

11.800

11,900

12,000

11,900

12,200

12,500

12,400

12,500

12,300

12 , 100

12,200

12,000

11,900

11,800

11,900

12 , 000

11,900

12,200

12,400

12,400

12,700

13,200

13,500 

13,800

384,000

12,390

761,700

Nov.

17,800

17,900

16,500 

15,900

15,500

15,200

14,900

15,000

15,100

15,300

15,200

14,900

15 , 100

14,600

14,400

14,500

14,600

14,200

14,000

13,900

14,100

13,900

14,000

13,800

13,700

13,300

12,900

* 12, 800

12.400

12,500

437,900

14,600

868,600

Dec.

12,600

12,600

12,400 

12,100

12,400

12,400

12 , 800

12,900

12,800

12,600

12,100

12,500

12,500

12,900

15.100

12,700

12,600

12,700

12,700

12,800

12 , 800

12,800

12,800

13,000

12,300

12,100

12,000

12 , 100

11,900

11,400 

12,400

387,800

12,510

769,200

Jan.

10,900

10,900

10,600 

10,500

10,400

10,400

10,300

10,400

10,600

10,900

10,600

10,200

11,100

13,200

17,800

17,500

15,400

14,100

12,800

12,300

13,900

14,700

14,200

13,100

12,500

11,300

11,100

10,700

10,400

*10,200 

IC^lOO

373,100

12 , 040

740,000

Feb.

10,100

9,930

10,100 

10,100

10,000

9,900

9,690

9,620

10 , 000

9,910

10,100

9,880

9,950

9,940

10,100

10,200

10,500

10,700

10,700

11,100

11,300

12,900

16,200

23,100

41,900

61,700

*64,600

65.900

-

500,120

17,860

992,000

Mar.

65,200

63,600

61,900 

61,700

71,000

*85,200

79,200

*72,300

70,300

65,000

61,700

59,100

57,300

55,500

52,800

50,600

49,300

47,800

*44,200

44,100

41,600

*38,400

36 , 600

33,200

31,800

27,800

25,700

25,600

23,000

22.500 

23,200

tl,545.2

49,850

*3,065

Apr.

23,300

22,900

21,600 

20,800

20,400

19,500

19,300

18,500

18,000

16,900

16,800

15,800

15,100

14,900

17,600

22,100

21,200

21,OOC

23,000

23,900

24,000

*24,600

24,100

23,800

22,700

20,400

18,700

16,800

16,300

15,800

599,800

19,990

*1,190

May

15,900

14,300

16,100 

17,500

17 , 100

16,700

17,200

17,500

17,900

18,900

19,000

18,800

18,900

20,500

20,900

21,100

21,000

21,000

54,000

53,400

65.200

*63,500

65,100

59,100

52,400

46,900

42,400

59,800

*59,100

57,600 

55,700

960,500

50,980

*1,905

June

31.700

50 500

50^200 

27,900

25,400

24,200

25,400

22,100

20,700

19,700

19,500

18,500

17,700

15,000

14,800

14,200

14,000

12,500

11,700

11,500

10,900

10,600

10,400

10,200

9,800

9,460

*9,420

9,270

9,450

9,550

505,830

16,790

999,300

July

9,580

9,170

9,240 

9,350

9,260

9,460

9,320

9,140

9,080

9,090

8,890

8,890

8^.750

F.870

8,950

8,810

9,030

9,210

9,250

9,250

9,220

9,780

9,790

9,790

9,670

9.920

9,680

9,740

9,720

9,740 

9,800

289,200

9,329

573,600

Aug.

9,560

9,460

9.510 

9,330

9,570

9,630

9,670

9,480

9,450

9,670

9,890

9,980

10,000

9,910

9,870

9,660

9,840

9,660

9,690

9,890

9,770

9,780

9,620

9,600

9,790

9,810

*9,670

9,860

10,000

10,200 

10,200

301,800

9,735

598,600

Sept.

10,200

10,100

10.000 

10,200

10,200

10,600

10,700

10,700

11,500

11,500

11,400

11,400

11,500

12 , 100

12,400

12,700

13,000

15,200

13,500

15,500

13,400

15,200

12,900

12,700

12,700

12,300

12,200

12,600

16,400

18,200

366,400

12,210

726,700

Calendar year 1956: Max 88,600 Mln 11,000 Mean 29,330 Ac-ft 21,290,000

Water year 1956-57: Max 83,200 Mln 8,730 Mean 18,220 Ac-ft 13,190,000

* Discharge measurement made on this day. 

t Expressed in thousands.

510529 O - 59 - 33
500 SACRAMENTO RIVER BASIN 

Adobe Creek near Kelseyville, Calif.

Location.--Lat 38°55'40", long 122°52'45", In SE^- sec. 5, T. 12 N., R. 9 W., on left 

bank 2.5 miles upstream from Highland Creek and 4.2 miles south of Kelseyville.

Drainage area. 6.39 sq ml.

Records available.--October 1954 to September 1957.

Gage.--Water-stage recorder and concrete control. Altitude of gage Is 1,490 ft (from 

topographic map).

Extremes. Maximum discharge during year, 762 cfs Feb. 24 (gage height, 7.39 ft); no 

Flow at times for several months.

1954-57: Maximum discharge, 1,250 cfs Dec. 21, 1955 (gage height, 8.72 ft); no 

flow at times each year.

Remarks.--Records fair. Some storage and diversions for irrigation above station.

Rating table, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

4.0

4.1

0

.1

.6 

Z.4 

5.4

4.3

4.4

4.5 

4.7

5.0 

5.5 

6.0 

7.0

96

194

320

625

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

Z5

Z6

Z7

Z8

29

30

31

TOtELl

Mean

Ac-rt

Oct.

0~0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

18 

T.I

20.1

0.65

40

Nov.

0.6

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.7

0.02

1.4

Dec.

0

0

.z

.5

*1.1

1.0

.8

.5

.2

.2

.2

.Z

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

5.Z

0.17

10

Calendar year 1956: Max 600

Jan.

O

0

0

0

0

0

0

0

0

0

1Z

*73

~50 106

28

8.3

5.0

3.4

3.1

50

14

7.7

5.8

4.2

3.6

3.1

2.6

2.4

1.8

1.8

1.6

387.4

12. 5

768

Feb.

1.6

1.8

1.4

1.4

l.Z

l.Z

2.1

4.6

z.a

Z.4

2.1

1.8

1.6

1.6

1.4

l.Z

l.Z

 1.1 U

1.4

67

33

Z47

549

157

107

57

32

1,281.0

45.8

Z,540

Mln 0

Mar.

20

13

12

12

25

ZZ

16

14

15

10

9.5

39

T4

18

36

Z8

3Z

23

18

14

10

*8.3

6.7

5.8

5.4

4.6

4.Z

3^

5.4

4.Z

3.9

45Z.9

14.6

898

Apr.

3.4

3.1

z.a

2.6

2.4

Z.I

1.8

1.6

1.4

l.Z

l.Z

1.2

4.4

ZO

5.4

11

46

44

Z4

17

1Z

9.5

7.7

6.Z

5.4

4.6

3.9

3.6

3.1

3.1

Z55.7

8.5Z

507

May

6.9

11

4.2

3.6

2.8

Z.8

z.a

*9.0

6.7

4.6

4.2

3.6

4.2

3.6

3.4

Z.8

3.7

89

51

34

Z4

17

13

9.5

7.7

6.2

5.4

4.Z

3.6

3.4

z.a

350.7

11.3

696

June

2.4

!T8

1.6

1.4

.9

0

0

.1

.8

.5

.1

.1

0

.1

0

0

0

0

0

0

 0

0

0

0

0

0

0

0

0

0

9.8

0.33

19

July

(*)

0

0

0

Aug.

0

0

0

Sept.

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

~s46

0

.5

46.6

1.55

92

Mean 15. Z Ac-ft 11,050

Water year 1956-57: Max 549 Mln 0 Mean 7.70 Ac-ft 5,570

Peak discharge (base, 250 cfs). Feb. 24 (6 a.m.) 762 cfs (7.59 ft). 

* Discharge measurement or observation of no flow made on this day.
SACRAMENTO RIVER BASIN 501

Highland Creek near Kelseyville, Calif.

Location. Lat 38°56'10", long 122°54 I 25", in NW£ sec. 31, T. 13 N., R. 9 W., on downstream side of middle pier of Highland Springs Road bridge at Highland Springs, 

1.6 miles upstream from mouth and 4.8 miles southwest of Kelseyville.

Drainage area. 12.7 sq mi.

Records available.-'-October 1954 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 1,440 ft (from topographic map).

Extremes.--Maximum discharge during year, 1,370 cfs Feb. 24 (gage height, 9.63 ft); no 

flow for many days.

1954-57: Maximum discharge, 1,860 cfs Feb. 21, 1956 (gage height, 11.04 ft); no 

flow for many days each year.

Remarks,--Records good except those for periods of no gage-height record, which are fair. 

No "regulation or diversion.

Rating tables, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Jan. 12, 14, 15, 20)

3.1

3.2

3.3

Oct. 1 to Feb. 24

5.0 

5.5 

6.0 

7.0 

8.0 

9.0

Feb. 25 to Sept. 30

54

102

178

274

534

830

1,150

3.3

3.4

3.5

1.6 

2.8

3.7

4.9 

5.7

45

88

214

Discharge, In cubic feet per cond, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Cale

Oct.

0.1

.1

.1

.2

.2

.2

.3

.3

.3

.4

.5

.5

.5

.5

.4

.5

.5

»».5

.6

.6

.6

.7

.7

.8

.9

.9

.8

.6

.7

12 ~T ft

i . O

27.8

0.90

55

Nov.

0.9

.7

.6

.5

.4

.4

.4

.4

.4

.5

.6

.9

1.3

1.3

1.4

1,4

1.4

1.4

1.5

1.6

1.6

1.7

1.7

1.7

1.8

1.8

1.8

1.7

1.5

1.2

34.5

1.15

68

Dec.

1.0

1.0

1.0

1.1

«1.5

1.3

.9

.8

.7

Tff

.9

1.0

.9

.9

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

26.0

0.84

52

Jan.

^

ils

1.1

.9

26

 143

178 ~66

31

13

7.4

5.2

4.3

59

18

9.8

7.2

5.4

4.7

4.1

3.4

3.3

2.9

2.8

2.6

605.3

19.5

1,200

Feb.

2.8

3.0

2.8

2.6

2.6

2.5

2.9

3.9

3.1

3.0

2.8

2.8

2.6

2.6

2.5

2.4

2.4

2.4

»2.1

27i

134

57

452

903

204

122

74

45

2,044.9

73.0

4,060

idar year 1956: Max 1,270 Mln 0

Mar.

32

22

21

27

80

53

39

33

29

22

20

61

38

33

72

57

59

44

35

28

21

*17

15

13

12

11

9.8

I"8.8

9.8

9.0

943.4

30.4

1,870

Apr.

7,8

7.1

6.4

5.9

5.7

5.5

5.3

4.9

4.7

4.5

375" 4.3

9.5

39

10

15

65

71

3T

26

20

16

14

12

10

9.3

8.5

7.8

6.8

6.4

448.9

15.0

890

May

10

18

8.5

7.3

6.4

5.9

579

 15

12

9.8

8.3

7.3

7.3

7.6

7.8

6.2

7.3

87

60

49

38

27

21

16

13

11

9.6

8.3

7.3

6.6

5 9

510.3

16.5

1,010

June

5.5

BTT

4.7

4.3

4.0

4.0

3.8

3.6

3.4

3.3

3.0

3.0

Z.8

3.0

2.8

2.5

2.4

2.1

2.0

1.9

 1.9

1.8

1.7

1.6

1.4

1.4

1.3

T73

1.3

1.3

82.2

2.74

163

July

1.4

TT?

1.2

1.1

1.0

.9

.8

.7

.6

.6

.6

.5

.5

.6

.7

.6

.5

.5

.5

.5

.5

.5

.4

.4

.3

.3

.3

.2

72

.2

».2

18.6

0.60

37

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.1

0.13

8.1

Sept.

0

0

0

0

0

0

0

0

0

0

0

»0

0

0

.1

0

0

.1

.1.1

.1

.1.1.1

.1

8.4

48~5M

3.4

3.0

68.8

2.29

136

Mean 26.4 Ac-ft 19,150

Water year 1956-57: Max 903 Mln 0 Mean 13.2 Ac-ft 9,550

Peak discharge (base, 300 cfs).--Jan. 13 (1:30 a.m.) 545 cfs (7.04 ft); Feb. 24 (1:30 a.m.)

1.570 cfs (9.63 ft).___________ ____ ___ ____ _____ ____________________

* Discharge measurement made on this day.

** Field estimate made on this day.

Note.--No gage-height record Oct. 1-18, Nov. 29 to Dec. 5, Aug. 2 to Sept. 12j discharge estimated 

on basis of 1 field estimate, 1 discharge measurement, and records for Kelsey Creek near Kelseyville.
502 SACRAMENTO RIVER BASIN

Kelsey Creek near Kelseyville, Calif.

Location. Lat 38°55'45", long 122°50'35", in SE£ sec. 34, T. 13 N., R. 9 W., on left 

bank 1.6 miles downstream from Widow Creek and 3.5 miles south of Kelseyville.

Drainage area.--37.2 sq mi.

Records available.--October 1946 to September 1957. December 1945 to September 1946 in 

unpublished reports of Bureau of Reclamation.

Gage.--Water-stage recorder. Altitude of gage is 1,450 ft (from topographic map). Prior 

£o July 16, 1955, at site 600 ft upstream at different datum.

Average discharge. 11 years, 67.4 cfs (48,800 acre-ft per year).

Extremes. Maximum discharge during year, 5,740 cfs Feb. 24 (gage height, 11.19 ft), 

from rating curve extended above 2,600 cfs as explained below; minimum, 3.2 cfs 

Sept. 8.

1946-57: Maximum discharge, 8,800 cfs Dec. 21, 1955 (gage height, 12.80 ft), from 

rating curve extended above 2,600 cfs on basis of computation of peak flow over dam; 

minimum, 0.5 cfs Sept. 1, 1950, but may have been less during August 1950.

Remarks. Records good. No storage or diversion above station.

Revisions (water years).--WSP 1285: 1947-48(M), 1950-52(P). WSP 1395: Drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

2.8

2.9

3.0 

3.2 

3.4

Oct. 1 to Feb. 23

3.1 3.7

4.4 4.0

5.8 4.5

9.5 5.0

15 6.0

Feb. 24 to Sept. 30

165

418

Note. Same as following 

table above 6.0 ft.

1.6 

1.8 

2.0 

2.5 

3.0 

3.5 

4.0 

4.5

58

110

5.0

6.0

7.0

8.0

9.0

10.0

11.0

183

418

810

1,420

2,350

3,700

5,400

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

237

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

5.0

5.2

4.7

4.0

4.4

4.3

4.5

5.8

6.1

6.4

7.0

8.4

6.8

6.4

6.4

6.0

6.0

*6.2

6.2

6.2

6.2

6.4

7.2

8.0

7.2

8.4

10

8.6

9.2

110

32

329.2

10.6

653

Nov.

17

IT

12

11

10

10

10

9.8

9.5

9.5

9.5

9.3

9.3

9.5

9.5

9.5

9.5

9.5

9.3

9.3

9.3

9.3

9.3

9.3 

9.3

9.3

9.3

9.1

9.1

8.8

299.1

9.97

593

Dec.

8.8

8.8

8.6

9.1

»12_

11

9.8

9.3

9.1

9.1

9.5

9.8

10

9.5

9.3

9.1

9.1

9.1

8.8

8.8

8.8

8.6

8.6

8.8 

8.8

8.6

8.6

8.6

8.6

°* J

8.6

283.6

9.15

563

Jan.

8.6

s!e

8.6

8.8

8.8

8.6

10

10

9.3

25

*252

666

232

164

71

49

38

35

241

71

51

41

35 

32

28

26

24

22

21

20

2,233.9

72.1

4,430

Feb.

20

21

19

17

17

16

21

37

24

22

20

19

18

17

16

15

IS

15

*15

16

142

104

1,570

5,950 

983

562

319

220

-

8,230

294

16,320

Mar.

172

134

126

130

183

156

127

113

129

103

94

237

T5T

124

219

183

218

173

143

118

99

*84

74

66 

60

55

49

45

49

47

42

3,704

119

7,350

Apr.

39

36

35

33

31

30

29

28

27

27

56" 26

50

184

57

68

237

2T?T

150

103

85

72

63

56 

49

44

40

37

36

34

1,913

63.8

3,790

May

36

88

44

38

35

33

*33

61

69

50

45

42

41

40

45

37

37

265" 442

199

160

124

102

84 

70

60

50

45

40

37

34

2,486

80.2

4,930

June

323tr

28

27

26

25

24

23

23

23

21

21

21

21

21

20

19

18

18

17

*17

15

15

14 

15

14

13

12

11

IT

595

19.8

1,180

July

12

IT

11

11

9.7

9.8

9.6

9.5

9.1

8.3

9.3

8.3

8.6

8.2

8.0

7.6

7.2

7.5

7.7

7.2

8.2

7.6

7.4

6.8 

6.4

5.7

5.7

5.2

4.7

*4ia

247.7

7.99

491

Aug.

.1

.9

.4

.6

.9

,.7

. 3

.6

.3

.9

.8

.4

.2

.1

.2

.4

.3

.2

.1

.2

.9

.9

.0

-TS

.2

.2

.2

.4

.5

.5

138.9

4.48

276

Sept.

4.2

4.0

3.9

3.8

3.6

3.5

ItT

3.4

3.4

3.6

*3.8

5.8

3.6

4.0

4.2

4.3

4.5

4.4

4.1

4.0

4.0

3.9

4.0 

4.0

8.4

258

42

35

49

489.2

16.3

970

Calendar year 1956; Max 4,390 Mln 3.8 Mean 107 Ac-ft 77,690

Water year 1956-57: Max 3,950 Mln 3.4 Mean 57.4 Ac-ft 41,550

Peak discharge (base, 1,600 cfs). Feb. 24 (6 a.m.) 5,740 cfs (11.19 ft).

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 503

Clear Lake at Lakeport, Calif.

Location.--Lat 39°03', long 122°55', In SEir sec. 24, T. 14 N., R. 10 W., at municipal 

wharf on north side of Third Street In Lakeport.

Drainage area.--528 sq ml, Including water surface of lake (65 sq ml). 

Records available.--1874-1900 (Incomplete) and January 1913 to-September 1957.

Gage. Water-stage recorder. Datum of gage Is 1,318.59 ft above mean sea level, datum of 

1929. Prior to July 8, 1947, staff gage at same site and datum.

Extremes. Maximum dally gage height during year1 , 7.Iff ft Apr. 22; minimum, 2.47 ft 

 Dec. 1-7, Jan. 6, 7.

1913-57: Maximum gage height observed, 11.12 ft Jan. 28, 1914; minimum observed, 

-3.50 ft Sept. 24-27, 1920.

Remarks.--This natural lake is regulated by a concrete overflow dam at outlet, completed 

in 1915. Capacity between gage heights 0.00 and 7.56 ft (limits stipulated by court 

decree of 1920), about 319,000 acr-e-ft. Water is released down natural channel of 

Cache Creek, from which it is diverted for Irrigation (see Cache Creek near Lower 

Lake). Records of chemical analyses for the water year 1957 are given In WSP 1523.

Cooperation. Dally mean gage-height record furnished by Clear Lake Water Co.

Mean gage height. 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

2.88 

2757

2.86

2.85

2.83

2.82

2.78

2.75

2.74

2.72

2.71

2.69

2.68

2.67

2.66

2.65 

2.64

2.63

2.62

2.61

2.60

2.59

2.58

2.57

2.56

2.56

2.55

2.54

2755"

2.57

2.58

Nov.

2.59 

2.60

2.62

2.63

2763"

2.63

2.62

2.62

2.61

2.60

2.59

2.58

2.57

2.56

2.55

2.54 

2.53

2.52

2.51

2.50

2.50

2.50

2.49

2.48

2748

2.48

2.48

2.48

2.48

2.48

Dec.

2.47 

2747

2.47

2.47

2.47

2.47

2.47

2.48

2.48

2.48

2.49

2.49

2.49

2.49

2.49

2.50 

2.50

2.50

2.50

2.50

2.50

2.49

2.49

2.49

2.49

2.49

2.49

2.49

2.49

2.49

2.49

Jan.

2.49 

2.49

2.49

2.48

2.48

2.47

274T

2.48

2.49

2.51

2.58

2.74

2.84

2.86

2.89

2.91 

2.92

2.93

2.95

3.00

3.14

3.16

3.17

3.18

3.19

3.20

3.17

3.17

3.17

3.17

3.17

Feb.

3.19 

3720

3.20

3.20

3.21

3.22

3.23

3.23

3.23

3.23

3.23

3.23

3.23

3.23

3.24

3.24 

3.25

3.25

3.25

3.34

3.44

3.62

3.85

4.60

4.96

5.22

5.37

5.47

Mar.

5.50 

5.55

5.63

5.72

5.86

5.96

6.05

6.08

6.12

6.17

6.20

6.26

6.33

6.46

6.49

6.60 

6.65

6.70

6.74

6.76

6.79

6.82

6.84

6.85

6.88

6.90

6.91

6.92

6.93

6.94

6.94

Apr.

6.95 

6.96

6.97

6.98

6.98

6.97

6.96

6.95

6.94

6.95

6.93

6.93

6.95

6.98

6.99

7.02 

7.04

7.10

7.14

7.16

7.17

7.18

7716"

7.14

7.12

7.12

7.11

7.08

7.05

7.03

May

7.01 

6T98'

7,01

7.00

6.98

6.95

6.95

6.94

6.94

6.93

6.90

6.87

6.85

6.83

6.80

BTST

6.85

6.90

6.92

6.92

6.92

6.92

6.91

6.90

6.90

6.89

6.87

6.84

6.82

6.80

June

6.78 

6777

6.76

6.76

6.72

6.70

6.65

6.62

6.60

6.58

6.54

6.49

6.44

6.39

6.37

6.35 

6.31

6.27

6.22

6.19

6.16

6.14

6.11

6.08

6.04

5.99

5.95

5.93

5.89

5.85

 

July

5.80 

5776"

5.73

5.68

5.64

5.59

5.55

5.50

5.44

5.39

5.35

5.30

5.25

5.20

5.17

5.13 

5.09

5.05

5.01

4.97

4.95

4.91

4.87

4.83

4.80

4.77

4.72

4.67

4.63

4.58

4.54

Aug.

47§

4.40

4.33

4.29

4.25

4.20

4.16

4.11

4.08

4.06

4.03

3.99

3.95

3.92

3.89 

3.86

3.82

3.79

3.76

3.73

3.70

3.67

3.63

3.60

3.57

3.54

3.49

3.44

3.40

3.38

Sept.

3.36 

3733

3.30

3.27

3.25

3.22

3.20

3.18

3.15

3.12

3.10

3.07

3.04

3.00

2.97

2.94 

2.92

2.90

2.88

2.88

2.86

2.84

2.82

2.80

2.78

2.88

2.92

2.93

2.94

2.95
504 SACRAMENTO RIVER BASIN

Cache Creek near Lower Lake, Calif.

Location. Lat 38°55'27", long 122°33'53", in sec. 6 T. 12 N., R. 6 W., on left bank 

500 ft downstream from Clear Lake Dam, 1.9 miles (revised) downstream from Copsey 

Creek, and 2.5 miles northeast of Lower Lake.

Drainage area. 528 sq mi, including water surface of Clear- Lake (65 sq mi). 

Records available_. May 1944 to September 1957.

Gage. Water-stage recorder. Datum of gage is 1,280.3 ft above mean sea level (riverprofile survey).

Average discharge. 13 years, 281 cfs (203,400 acre-ft per year).

Extremes.--Maximum discharge during year, 520 cfs June 25-28 (gage height, 4.10 ft); minimum, 0.8 cfs'Feb. 22.

1944-57: Maximum discharge, 6,270 cfs Feb. 13, 1956 (gage height, 9.11 ft), from 

rating curve extended above 3,900 cfs by logarithmic plotting; minimum recorded, 

0.3 cfs Mar. 15-23, 1950.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Plow completely regulated by Clear Lake. Records of chemical analyses for the water 

year 1957 are published in WSP 1523.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, In cubic feet per second)

.6 3.5

0.8 

1.0 

1.3 

1.6 

2.0

6.6

11

22

38

70

2.5 

3.0 

4.0 

5.0

135

222

484

980

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

55

47

36

35

36

36

36

36

36

36

26

17

17

8.4

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

482.9

15.6

958

Nov.

> 1.5

45.0

1.50

89

Dec.

2.4

3.4

370

2.9

2.9

2.8

2.8

2.8

2.7

2.7

2.7

2.6

2.5

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.2

2.1

2.1

2.0

27C

2.0

76.4

2.46

152

Jan.

2.0

T79

1.8

1.8

1.6

1.6

1.6

1.5

1.4

1.4

*1.4

1.4

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.0

1.0

1.0

1.0

1.0

1.0

.9

7?

.9

.9

39.8

1.28

79

Feb.

0.9

T7S

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.0

1.0

1.0

*1.0

.9

.9

1.0

4.2

ITS

1.0

1.0

1.0

-

32.9

1.18

65

Mar.

1.0

TTff

1.0

1.0

1.0

1.0

1.1

1.1

1.1

1.2

1.2

1.3

1.4

ra1.4

1.4

1.4

1.4

1.4

1.4

*1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.4

1.3

39.3

1.27

78

Apr.

1.4

1.3

T73

1.3

1.3

53. O

87.0

86.0

85.0

85.0

95

114

120

126

78

58

49

15

2.4

2.4

2.4

191

481

m474

474

471

471

471

471

5,042.8

168

10,000

May

468 46"5

468

462

452

452

*452

452

455

455

455

455

455

445

455

455

455

455

455

455

455

455

455

455

455

455

455

455

455

455

344

14,028

453

27,820

June

202

2CO" 200

216

262

312

356

388

400

394

380

372

414

458

431

397

380

369

366

*372

377

386

414

446

495

520

52T5

502

465

458

11,452

382

22,710

July

455

4415

428

425

416

449

440

419

437

428

402

400

400

400

388

391

391

386

377

358

340

335

319

319

319

332" 312

383

405

394

*374

12,062

389

23,920

Aug.

348

332

356

394 3~55

380

361

353

353

330

314

335

356

350

340

319

300

300

327

337

324

304

273

246

240

264

295

302

295

262

218

9,896

319

19,630

Sept.

216

237

248

251

262

266

233

214

226

229

222

202

170

150

160

168

182

175

144

110

95

95

93

93

93

92

72

26

1.6

277J

4,727.6

158

9,380

Calendar year 1956: Max 5,030 Min 1.5 Mean 731 Ac-ft 530,800

Water year 1956-57: Max 520 Min 0.9 Mean 159 Ac-ft 114,900

* Discharge measurement made on this day. 

Note. No gage-height record Oct. 15-30, Nov. 

readings and flow through Clear Lake Dam.

1-30; discharge estimated on basis of 6 observer
SACRAMENTO RIVER BASIN 505

North Pork Cache Creek near Lower Lake, Calif.

Location. Lat 39°01', long 122°33', in NE^ sec. 31, T. 14 M., R. 6 W., on right bank 

500 ft upstream from Sweet Hollow Creek, 3 miles upstream from mouth, and 7 miles 

northeast of Lower Lake.

Drainage area. 198 sq mi.

Records available.--July 1930 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 1,035.60 ft above mean sea level, preliminary adjustment of 1929. Prior to June 15, 1939, at datum 1.00 ft higher.

Average discharge. 27 years, 181 cfs (131,000 acre-ft per year); median of yearly mean 

discharges, 140 cfs (101,000 acre-ft per year).

Extremes. Maximum discharge during year, 5,760 cfs Feb. 24 (gage height, 8.75 ft); no

 TTovTOct. 11-29.

1930-57; Maximum discharge, 20,300 cfs Dec. 11, 1937 (gage height, 13.98 ft, present datum, from floodmarks), from rating curve extended above 7,200 cfs on basis of 

slope-area determination at gage height 13.9 ft for peak of Feb. 28, 1940, and logarithmic plotting; no flow at times each year 1930-36, 1949-50, 1956-57.

Remarks.--Records good. Several small diversions above station. Records of chemical 

analyses for the water year 1957 are given in WSP 1523.

Revisions (water years). WSP 831: 

1937(M).

1943(M). WSP 1091: Drainage area. WSP 1345:

Rating tables, water year- 1956-57 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Mar. 11, Mar. 20 to Apr. 17)

Oct. 1 to Apr. 18 Apr. 18 to Sept. 30

1.7

1.8

1.9

2.0 

2.5 

3.0

0

1.5

7.3

23

88

170

3.5

4.0 

5.0 

6.0 

7.0 

9.0

280

460

1,030

1,800

2,800

6,280

1.0 

1.2 

1.5 

2.0

0.5 

1.5 

3.5

56

2.5 115

190

295

460

1,0.30

Discharge, in cubic feet pe econd, water- year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.6

.8

.8

.9

.9

.6

.6

.6

.4

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4.3

 36

46.7

1.51

93

Nov.

24

18

18

18

17

17

15

13

13

13

13

13

13

12

12

13

13

13

13

13

13

13

13

13

13

15

15

13

13

13

428

14.3

849

Dec.

13

12

12

12

 13

13

13

12

12

13

13

13

13

13

13

13

13

13

12

13

13

13

13

13

11

15

15

15

13

13

13

405

13.1

803

Jan.

12

12

12

12

12

10

10

12

10

12

»13

127

779

292

262

162

96

64

48

670

291

176

121

101

84

74

60

57

48

46

41

3,726

120

7,390

Feb.

41

41

40

36

35

33

35

43

47

42

40

37

36

40

39

36

35

34

34

*35

233

265

2,110

4,590

2,610

1,730

1,470

1,020

-

14,787

528

29,330

Mar.

674

580

496

610

1,040

960

698

595

515

400

319

731

585

476

605

662

575

500

440

360

*283

230

200

174

154

139

124

113

115

130 

102

13,585

438

26,950

Apr.

91

78

71

63

57

52

48

45

40

36

34

33

33

144

84

64

165

466

2l5

240

204

180

166

158

140

130

122

114

104

99

3,556

119

7,050

May

96

138

114

94

87

82

*79

85

118

120

102

94

91

91

86

77

76

523

776

545

432

318

258

206

172

151

136

124

110

96 

38

5,565

180

11,040

June

79

7T

65

60

57

54

52

50

47

44

42

37

36

36

36

36

34

32

31

*28

27

27

26

24

20

20

18

14

14

11

1,130

37.7

2,240

July

13

12

12

12

11

10

9.6

10

11

10

10

9.6

9.0

8.6

8.6

7.9

7.2

6.8

6.8

6.5

6.2

5.9

5.6

5.3

5.0

5.0

4.

4.

4. 

4.

*4.

246.0

7.94

488

Aug.

4.1

4.1

3.8

3.8

4.4

4.4

4.1

3.8

3.5

3.5

3.8

3.3

3.3

3.3

3.1

2.9

2.7

277

2.7

2.9

2.7

3.1

3.1

2.9

2.9

2.9

2.9

2.9

2.9 

2 9

2.9

102.3

3.30

203

Sept.

2.7

2.7

2.5

2.3

2.1

2.1

1.9

1.7

1.5

1.7

1.7

*1.7

1.9

1.9

1.9

2.1

2.1

2.1

1.9

1.5

1.4

1 .4

1.4

1.4

1.4

2.3

7.6

29

14 

13

112.9

3.76

224

Calendar year 1956: Max 9,050 Mln 0 Mean 324 Ac-ft 235,300

Water year 1956-57: Max 4,590 Mln 0 Mean 120 Ac-ft 86.6EO

Peak discharge (base. 2,600 crs).--Feb. 24 (3 p.m.) 5,760 cfs (8.75 ft).

Discharge measurement made on this day
506 SACRAMENTO RIVER BASIN

Cache Creek near Capay, Calif.

Location. Lab 38 0 43'40", long 122°06'15", in Canada de Capay Grant, in Yolo County, 

on right bank 1.8 miles upstream from Clear Lake Water Co.'s diversion dam, 3.2 miles 

northwest of Capay, and 5.4 miles northwest of Esparto.

Drainage area.--l;052 sq mi.

Records available.--May 1942 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 240 ft (from topographic map).

Average discharge. 15 years, 547 efs (396,000 acre-ft per year); median of yearly mean 

discharge, 420 cfs (304,000 acre-ft per year).

Extremes. Maximum discharge during year, 9,460 efs Feb. 24 (gage height, 11.38 ft); 

minimum, 9.5 efs Oct. 28, 29.

1942-57: Maximum discharge, 35,000 cfs Jan. 21, 1943 (gage height, 17.54 ft), from 

rating curve extended above 6,300 cfs on basis of 1956 rating defined to 18,000 efs; 

minimum, 2.2 cfs Sept. 11, 12, 16, 1947.

Remarks. Records good. Plow regulated by Clear Lake beginning in 1915 (see p. 503). 

About 3,700 acre-ft diverted annually between stations near Lower Lake and near Capay 

for irrigation of approximately 900 acres, from data furnished by U. S. Soil Conservation Service. Records of chemical analyses for the water year 1957 are given in 

WSP 1523.

Revisions (water years).--WSP 1395: 1943.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

2,310

4,170

6,880

1.2 

1.4 

1.6 

2.0

2.5 

3.0 

3.5

4.0

201

350

570

850

6.0

8.0 

10.0

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-rt

Oct.

66

54

51

45

37

35

34

37

37

39

39

38

34

28

25

23

21

18

16

14

12

12

11

11

*11

10

10

10

10

15 

20

823

26.5

1,630

Nov.

25

34

30

26

23

22

20

20

18

17

17

17

17

16

17

17

17

17

15

17

17

17

16

16

16

17

17

17

*17

17

569

19.0

1,130

Dec.

17

17

17

19

20

21

22

22

22

21

21

21

22

22

18

20

20

19

19

18

17

17

16

15

15

15

15

15

14

15

17

569

18.4

1,130

Jan.

18

19

18

*18

18

18

18

18

18

18

19

23

399

580

300

258

168

125

101

217

505

241

168

133

113

99

89

80

74

68 

63

4,004

129

7,940

Feb.

60

57

56

54

53

51

51

53

54

59

57

54

52

49

*48

49

49

48

47

47

52

162

1,310

5,980

*5,380

2,190

1,850

1,230

-

19,202

686

38,090

Mar.

904

730

570

540

760

970

*820

665

575

498

430

462

688

545

502

736

645

605

516

457

402

358

326

300

282

267

249

235

219

230

227

15,713

507

31,170

Apr.

201

187

173

164

155

149

Tea

214

214

209

204

209

224

261

336

255

241

430

452

326

282

249

495

700

688

676

670

665

655

650

10,502

350

20,830

May

645

665

*688

650

625

610

610

620

640

660

645

635

630

620

615

605

600

630

1,130

1,040

952

868

808

766

724

694

665

650

635 

625

615

21,565

696

42,770

June

398

312

297

291

297

336

394

434

466

475

462

430

422

502

525

466

444

414

406

*406

418

418

434

470

511

560

570

570

535 

506

13,169

439

26,1-20

July

502

493

462

452

434

448

493

448

439

470

434

418

418

422

422

406

410

398

406

390

366

350

336

322

326

318

312

343

394

410

*394

12,636

408

25,060

Aug.

370

343

329

362

406

394

390

362

366

358

322

315

343

350

350

340

309

300

300

336

329

318

303

267

241

241

270

294

294 

294

10,054

324

19,940

Sept.

214

217

227

233

241

249

2l9

217

206

*211

219

211

196

173

151

153

159

173

164

143

117

95

89

87

87

89

111

111

89

JT7

4,948

165

9,810

Calendar year 1956: Max 23,800 Min 10 Mean 1,324 Ac-ft 960,900

Water- year 1956-57: Max 5,980 Mln 10 Mean 312 Ac-ft 225,600

Peak discharge (base, 3,500 cfs).--Feb. 24 (10 p.m.) 9,460 cfs (11.36 ft). 

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 507

Cache Creek at Yolo, Calif.

Location. Lat 38°43'30", long 121 "48"25", In Rio Jesus Maria Grant, on left bank 800 ft 

upstream from highway bridge and 0.5 mile south of Yplo, Yolo County.

Drainage area. 1,137 sq ml.

Records available. January 1903 tc September 1957.

Gage. Water-stage recorder. Datum of gage Is 52.27 ft above mean sea level, adjustment 

of 1929. Prior to summer of 1930, staff gage at datum 5.97 ft higher. Summer of 1930 

to June 11, 1954, water-stage recorder at same site at datum 4.00 ft higher.

Average discharge. 54 years, 504 cfs (364,900 acre-ft per year).

Extremes. Maximum discharge during year, 9,710 cfs Feb. 25 (gage height, 16.91 ft); no 

flow for several months.

1903-57: Maximum discharge, 28,700 cfs plus overflow on right bank estimated as 

10,000 cfs Feb. 28, 1940 (gage height, 33.0 ft, present datum); no flow at times each 

year.

Maximum stage observed, 34.2 ft (present datum) Mar. 10, 1904.

Remarks. Records good. Plow regulated by Clear Lake beginning in 1915 (see p. 503). 

Diversions for Irrigation of up-to about 30,000 acres between stations near Capay and 

at Yolo, from data furnished by Clear Lake Water Co.

Revisions (water years). WSP 1121: Drainage area. WSP 1345: 1906. WSP 1445: 1955.

Rating table, water year 1956-57 (gage height, in feet, 

and dischai-ge, In cubic feet per second)

1,750

3,100

5,400

7,900

2.05

2.1

2.3

2.5

2.7

0

1.0

5.0

13

28

2.9 

3.2 

3.5 

4.0 

5.0

54

110

180

305

650

7.0

9.0

12.0

15.0

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

(*)

0

0

0

Nov.

(*)

0

0

0

Dec.

0

0

0

Jan.

»0

S

0

*0

0

0

0

0

0

0

0

0

0

147

190

120

77

35

17

0

247

tt5

118

61

*28

12

5.9

*3.8

1.8

0

0

1,308.5

42.2

2,600

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

45

2,730

»6i,780

*2,160

1,680

*1,150

IE, 545

555

30,830

Calendar year 1956: Max 21,900 Mln 0

Mar.

'5TO" 785

470

392

364

749

»677

*546

453

395

329

298

478

439

383

481

523

478

416

*368

317

282

248

218

198

178

158

138

124

116

13C

11,741

379

23,290

Apr.

104

67

*63

41

26

13

0

15

*0

»0

0

0

0

0

0

0

0

0

52

63

34

23

35

332

404

413

40T

359

335

305

3,070

102

6,090

May

292

265

*255

225

202

205

195

T5F

240

268

278

275

278

268

265

*265

250

248

419

614

574

523

474

442

398

362

335

288

272

253

*242

9,670

312

19,180

June

~J9 188

15

0

*S

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

242

8.07

480

July

(*)

(»)

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Mean 1,199 Ac-ft 870,400

Water year 1956-57: Max 6,780 Min 0 Mean '114 Ac-ft 82^470

* Discharge measurement or observation of no flow made on this day.
508 SACRAMENTO RIVER BASIN

Yolo bypass near Woodland, Calif.

Location. Lat 38°40'40", long 121°38'35", on left bank Just upstream from Sacramento 

and Woodland Railroad bridge, 6 miles upstream from Sacramento bypass, 7 miles downstream from Fremont weir, and 7 miles east of Woodland, Yolo County.

Records available . October 1940 to September 1957 in reports of Geological Survey. 

March to October each year 1930-38 and 1939-56 in reports of California Department 

of Water Resources.

Gage. Water-stage recorder. Gage is set to datum of Corps of Engineers. Prior to

Dec. 17, 1941, staff gage and Dec. 18-31, 1941, water-stage recorder, at datum

0.73 ft higher. Supplementary water-stage recorder 6 miles downstream at same datum.

Average discharge. 17 years, 3,758 cfs (2,721,000 acre-ft per year).

Extremes. Maximum discharge during year, 41,900 cfs Feb. 28 (gage height, 25.70 ft); 

minimum, 1.6 cfs Nov. 21.

1940-57: Maximum discharge, 272,000 cfs Feb. 8, 1942 (gage height, 32.00 ft); minimum observed, 0.4 cfs Mar. 31, 1955.

Remarks. Records good. Flow is that from Cache Creek and Knights Landing Ridge Cut plus 

floodwater passing over Fremont weir; during summer, flow consists largely of return 

water from irrigation.

CooTOration. Records collected and prepared in cooperation with California Department of 

Water Resources.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

50 

31

Total

Mean

Ac-ft

Oct.

30- 31

26

23

22

23

22

21

13

*9.0

9.0

9.0

7.6

8.3

9.0

*8.3

9.0

7.6

5.8

4.7

4.3

*4.0

3.8

3.8

3.3

3.3

3.3 

3.1

3.0

3T5 

4.7

338.4

10.9

671

Nov.

4.7

4.7

4.0

3.8

3.8

3.5

3.5

4.3

4.7

5.2

5.2

5.8

5.8

5.2 *3.8

3.3

3.0

2.8

2.4 *2.2

2.2

2.5

3.1

3.3

3.5

4.7

7.6 

T75

6.4

4.7

126.7

4.22

251

Dec.

4.0

3.5

3.3

475

9.8

13

12

17

20

19

18

19

*21

19

17

19

20

21

22

<!3

24

23

19

19

20

23

*23 

22

23

24 

23

547.6

17.7

1,090

Jan.

24

24

23

20

20

26

35

54

133

*112

74

54

72

70

*75

T29" 192

80

57

51

45

38

38

40

37

37

35 

32

30

26 

25

1,708

55.1

3,390

Feb.

24

23

22

23

22

20

20

*23

23

21

21

23

24

*25

23

22

19

15

12

U.

11

11

19

51

3,520

14,600

59.400 

*39,300

-

97,328

3,476

193,000

Calendar year 1956: Max 152,000 Mln 2.2

Mar.

30,000

18,000

8,220

5,180

7,280

25,400

55,700

33,900

29,700

23,800

15,800

6,220

*2,360

*1,260

1,070

1,000

826

*776

730

*646

572

508

454

434

388

356

362

290

212

182

156

251,782

8,122

499,400

Apr.

158 14"6

114

96

80

58

48

46

33

23

*24

24

22

23

24

26

29

33

29

28

24

24

25

20

13

12~ 7.6

58

77

72

1,396.6

46.6

2,770

May

70

62

50

44

36

36

35

30

23

*2?

35

56

102

107

91

*96

129

128

182

363

1,050

4,000

*6 . 180

3,940

2,240

1,750

1,500 

1,400

1,270

1,150 

801

26,999

871

53,550

June

553

348

174

110

78

64

66

69

72

74

72

50

*46

26

19

21

22

23

23

22

24

30

38

42

42

40

36 

40

42

35

2,301

76.7

4,560

July

30

35

28

25

24

23

22

23

26

25

25

23

21

21

21

20

19

*T9

19

19

20

24

28

24

23

23

26 

28

26

25 

26

736

23.7

1,460

Aug.

29

26

24

23

23

24

25

25

25

25

26

31

28

23

*21

21

21

25

33

31

32

35

38

40

42

44

38 

36

36

36 

37

923

 29.8

1,830

Sept.

46

54

52

46

50

50

48

54

60

75

*77

66

52

45

46

50

57

50

42

*38

38

36

35

30

29

28

26 

25

53

54

1,412

47.1

2,800

Mean 8,607 Ac-ft 6.248,000

Water year 1956-57: Max 39,400 Mln 2.2 Mean 1J056 Ac-ft "764J8OO

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 509

Putah Creek near Guenoc, Calif.

Location.--Lat 38=46'45", long 122°31'00", in Guenoc land grant, on right bank just 

upstream from Coyote Valley dam site, 2.8 miles upstream from Soda Creek, 3.2 miles 

downstream from highway bridge at Guenoc, Lake County, and 5.6 miles northeast of 

Middletown.

Drainage area. 112 sq mi.

Records available.--February 1904 to July 1906, July 1930 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 913.4 ft above mean sea level (riverprofile survey). February 1904 to July 1906 staff gage a quarter of a mile upstream 

at different datum.

Average discharge. 27 years (1930-57), 193 cfs (139,700 acre-ft per year); median of 

yearly mean discharges, 154 cfs (111,000 acre-ft per year).

Extremes.--Maximum discharge during year, 10,300 cfs Feb. 24 (gage height, 13.90 ft); 

minimum, 0.2 cfs Sept. 10.

1904-6; 1930-57: Maximum discharge, 32,000 cfs Dec. 11, 1937 (gage height, 

22.7 ft), from rating curve extended above 7,200 cfs by logarithmic plotting; minimum, 

that of Sept. 10, 1957.

Remarks. Records good. Diversions and ground-water withdrawals for irrigation of about 

1,600 acres above station.

Revisions (water years).--WSF 1285: 1937(M), 1938, 1940, 1943(M), 1951(M).

Rating tables, water year 1956-57 (gage height, In feet, and discharge, In cubic feet per second) 

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

Dl

0.4

1.1

2.0

3.2

4.8

9.6

16

26

44

3 charge,

2

3

3

4

5

6

8

10

13

In cubic

.5

.0

.5

.0

.0

.0

.0

.0

.0

feet

110

200

305

450

780

1,230

2,680

4,730

8,700

per seconc

10 0

3_

1

1

}_

1

1

1

2 1

3 2

4 4

5 7

7 16

4

3

6

5

4

, water year October 1956

2

2

3

4

5

7

9

0

5

0

0

0

0

0

to September

1

3

1957

37

100

190

406

724

,710

,350

Day

1

2

3

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.6

1.6

1.5

.8

.4

.8

1.4

1.5

.6

.8

.8

.8

.9

1.0

1.1

.8

1.0

1.1

.8

1.1

1.3

.9

1.5

1.6

1.6

1.7

1.6

1.6

1.7

172

*8T

289.9

9.35

575

Calendar yea

Nov.

19

13

11

9.3

8.6

8.3

8.3

8.0

8.3

8.8

8.8

9.1

9.3

9.1

9.3

9.9

10

10

10

8.6

8.3

9.1

9.6

10

10

10

11

11

11

11

297.7

9.92

590

Dec.

12

12

11 *n

12

12

12

12

12

12

13

13

13 

13

13

13

13

13

13

13

13

13

13

12

12

12

12

12

12

12

12

383

12.4

760

Jan.

12

T?

12

12

12

12

12

12

12

12

*13

154

1.240 

500

570

216

135

100

82

616

230

151

116

98

87

77

68

62

59

54

51

4,799

155

9,520

Feb.

48

50

46

44

42

41

43

112

80

66

60

56

52

50

47

44

42

41

39

*38

166

260

3,120

7,470

2,840

1,530

966

621

-

18,014

643

35,730

Mar.

457

356

319

380

449

409

323

278

332

268

248

693

406 

316

529

484

490

396

327

288

*250

220

200

180

168

157

145

134

132

136

12^

9,593

309

19,030

Apr.

116

108

100

94

90

85

80

79

76

73

72

69

71 

271

134

114

317

472

276

218

182

157

143

129

116

106

100

93

87

82

4,110

137

8,150

May

80

130

100

86

80

*75

72

8T

157

118

108

97

97 

97

100

87

83

1,210

724

523

463

330

270

228

198

174

156

139

127

118

110

6,424

207

12,740

June

100 -§3

86

80

72

66

63

58

53

51

45

41

38 

37

35

32

31

29

27

*26

23

22

21

19

17

15

13

12

12

12

1,229

41.0

2,440

July

12

T?

12

10

10

9.7

9.7

7.4

7.4

6.8

7.4

6.2

6.0 

8.2

6.0

5.7

5.7

6.0

6.2

5.7

7.1

5.7

5.1

5.4

5.1

5.1

4.1

5.4

3.7

*3.4

374

213.6

6.89

424

Aug.

3.7

3.2

3.7

4.8

3.7

3.0

2.6

3.0

2.2

3.2

3.9

2.0

2.0 

2.0

1.8

1.6

1.8

3.6

2.1

2.0

1.7

1.4

1.1

1.4

3.2

1.8

1.4

1.2

2.0

1.8

1.7

74.6

2.41

Sept.

2.8

1.7

1.0

.9

1.0

.9

1.0

2.3

1.4

JL!

.8 1.1

*1.0 

1.7

2.6

1.6

1.4

1.1

1.8

1.4

.9

2.2

1.2

.9

1.1

2.2

90

*5

12

6.9

192.2

6.41

148 381

* 1956: Max 10,400 Mln 0.4 Mean 279 Ac-ft 202,300

Water year 1956-57: Max 7,470 Min 0.3 Mean 125 Ac-ft 90,490

Peak discharge (base, 5,000 cfs).--Feb. 24 (3 p.m.) 10,300 cfs (13.90 ft). 

* Discharge measurement made on this day.
510 SACRAMENTO RIVER BASIN

Lake Berryessa near Winters, Calif.

Location. Lat 38°30'50", long 122°06'15", in SE^NW^ sec. 29, T. 8 N., R. 2 W., near 

center of Monticello Dam on Putah Creek, 7.5 miles west of Winters.

Drainage area. 577 sq mi.

Records available. January to September 1957.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Bureau of 

Keclamation).

Extremes.--Maximum daily contents during period, 126,200 acre-ft June 5, 6 (elevation,

Remarks. Reservoir is formed by concrete arch-gravity dam, completed Nov. 7. 1956; 

atorage began Jan. 11, 1957. Capacity, 1,592,000 acre-ft between 253.25 (invert of 

outlet valves) and 440 ft (controlled spillway elevation). Dead storage, 10.340 acreft.

Cooperation. Records furnished by Bureau of Reclamation.

Capacity table, water year 1956-57 (elevation. In feet, 

and contents, In acre-feet)

251

260

270

280

9,340

13,820

20,530

29,580

290

300

310

322

41,980

59,610

84,950

129,200

Contents, In thousands of acre-feet, at 12-p.m., water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct. Nov. Dec. Jan.

_

_

_

-

_

~

_

-

-

.809

1.58

2.73

4.31

5.34

6.14

6.47

6.94

7.55

8.20

8.86

9.23

9.43

9.64

9.81

9.94

10.07

10.14

10.20

10.29

10.36

253.30

+10,360

Feb.

10.40

10.44

10.48

10.51

10.54

10.55

10.62

10.75

10.90

11.05

11.18

11.27

11.34

11.42

11.45

11.57

11.64

11.68

11.74

11.91

16.15

24.38

35.81

52.22

65.06

71.38

75.05

 

77.40 z 

_______

____^^ -

307.37

+67,040

Mar.

78.58

79.36

80.16

81.22

82.97

84.09

85.62

86.63

87.42

88.23

88.92

90.28

91.56

92.51

93.63

94.88

96.17

97.29

98.46

98.98

99.72

100.3

100.7

101.2

101.6

102.0

102.3

102.7

103.0

103.2

103.4

315.61

+26,000

Apr.

103.8

104.0

104.1

104.3

104.5

104.5

104.6

104.7

104.8

104.9

104.9

105.2

105.5

105.9

106.0

106.3

107.2

108.4

109.2

109.7

110.3

110.6

110.9

111.1

111.3

111.5

111.8

112.0

112.2

112.3

.

317.93

+8,900

May

112.5

112 .'6

112.7

112.7

112.8

112.8

112.9

113.0

113.2

113.4

113.6

113.7

113.8

114.0

114.0

114.2

115.4

117.2

119.1

120.8

122.1

123.0

123.6

124.1

124.5

124.9

125.2

125.3

125.4

125.6

125.8

321.21

+13,500

June

125.9

126.0

126.0

126.1

126.2

126.2

126.1

126.0

126.0

125.9

125.9

125.8

125.8

125.6

125.5

125.3

125.2

125.2

125.1

124.9

124.3

124.7

124.6

124.4

124.3

124.1

124.0

123.8

123.6

125.5

320.67

-2,500

July

123.3

123.1

123.0

122.8

122.7

122.5

122.5

122.2

122.0

121.9

121.6

121.5

121.5

121.0

120.4

120.8

120.6

120.5

120.5

120.5

120.1

120.0

119.8

119.8

119.7

119.6

119.5

119.4

119.5

119.5

119.2

519.65

-4,300

Aug.

119.1

119.0

118.9

118.7

118.6

118.4

118.3

118.2

118.2

118.1

117.1

117.9

117.8

117.7

117.6

117.5

117.4

117.3

117.3

117.1

117.0

116.9

116.8

116.8

116.8

116.7

116.6

116.5

116.4

116.3

116.2

318.93

-3,000

Sept.

116.2

116.1

116.0

115.9

115.8

115.7

115.7

115.6

115.5

115.4

115.2

115.2

115.1

115.0

114.9

114.9

114.8

114.7

114.6

114.6

114.5

114.5

114.4

114.3

114.2

114.2

114.4

114.5

114.6

114.7

_______

518.54

-1,500

t Elevation, In feet, 

* Change in contents.

at end of month. 

In acre-feet.
SACRAMENTO RIVER BASIN 511

Putah Creek near Winters, Calif.

Location. Lat 38°31', long 122°05', in NE£ sec. 28, T. 8 N., R. 2 W., on left bank 

6 miles west of Winters and 8 miles downstream from Capell Creek.

Drainage area.--577 sq mi.

Records available. June 1930 to September 1957.

Gage. Water-stage recorder. Datum of gage is 160.75 ft above mean sea level (riverprofile survey). June 28, 1930, to Feb. 29, 1940, at datum about 1 ft higher.

Average discharge . 27 years, 467 cfs (338,100 acre-ft per year); median of yearly mean 

discharges, 350 cfs (253,000 acre-ft per year). Adjusted for storage in and evaporation from Lake Berryessa. .

Extremes.--Maximum discharge during year, 368 cfs Feb. 24 (gage height, 6.70 ft); 

3.0 cfs Oct. 1.

1930-57: Maximum discharge,'81,000 cfs Feb. 27, 1940 (gage height, 30.5 ft, present 

datum), from rating curve extended above 30,000 cfs by logarithmic plotting; no flow 

Sept. 6-15, 1950, July 26 to Sept. 1, Sept. 6-9, 1955.

Maximum stage known since at least 1905, that of Feb..27, 1940, on basis of records 

for station at Winters.

Remarks. Records good. Low-water records are not equivalent to records at Winters or 

near Davis. Flow regulated by Lake Berryessa beginning Jan. 11, 1957 (see p. 510). 

Diversions for irrigation of about 250 acres between stations near Guenoc and near 

Winters. Records cf chemical analyses for the water year 1957 are given in WSP 1523.

Revisions (water years).--WSP 901: 1937-38(M). WSP 1285: Drainage area, 1932(M),

 1935-36(M), 1940(M), 1942-43(M), 1951, 1952(M).

Rating table, water year 1956-57 (gage height, In feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Nov. 12 to Jan. 18)

3.5 3.0

3.6 4.0

3.7 6.0

3.8 8.0

3.9 

4.2 

4.6

5.0 

5.5 

6.0

142

224

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

ft)

f*)

Oct.

3.4

5.8

7.4

7.8

7.2

10

13

9.8

8.6

8.4

8.4

8.6

8.6

8.6

8.6

8.2

8.4

8.4

4.6

5.4

4.6

3.8

12

6.6

7.0

*7.8

8.2

7.8

7.6

12

!§

251.6

8.12

499

_

-

Nov.

14

30

43

43

44

42

42

37

38

42

42

40

40

39

40

34

39

38

37

36

35

34

33

32

31

31

30

29

*28

26

1,069

35.6

2,120

_

-

Dec.

26

25

24

25

25

25

25

25

26

26

26

26

26

26

25

25

25

26

25

25

25

25

24

24

24

24

25

25

24

24

24

775

25.0

1,540

_

-

Jan.

25

24

25

*25

25

25

25

26

26

26

27

30

31

35

28

35

48

53

52

53

52

52

52

50

51

51

52

52

51 

51

50

1,208

39.0

2,400

+10,360

26

Feb.

50

50

50

50

50

49

47

44

42

42

38

40

52

46

*46

43

18

37

37

38

46

36

74

157 ~52

42

40

40

-

1,356

48.4

2,690

+67,040

78

Mar.

40

38

36

40

45

43

41

42

42

42

42

43

43

*43

45

47

45

42

43

*43

43

44

44

45

45

45

45

45

45 

44

45

1,335

43.1

2,650

+26,030

699

Apr.

44

44

*45

46

45

45

45

45

48

45

45

44

44

44

43

42

42

42

39

40

40

40

40

41

40

40

39

38

42 

43

1,280

42.7

2,540

+8,910

1,560

May

41

42

*43

47

46

45

45

45

44

43

43

42

44

45

46

46

45

47

51

48

50

46

46

45

45

45

46

45

45 

46

45

1,402

45.2

2,780

+13,440

1,759

June

45

41

45

48

*48

49

48

48

48

47

46

46

46

47

46

46

44

41

44

46

46

45

38

47

52

47

45

48

49 

49

1,385

46.2

2,750

-2,320

3,060

July

49

49

*49

50

50

50

50

49

47

47

47

46

47

47

39

23

28

25

24

25

25

25

16

12

12

12

13

14

15 

12

20

1,017

32.8

2,020

-4,280

2,868

Aug.

26

18

15

14

13

*12

12

12

12

12

12

12

11

10

12

11

10

10

12

12

11

11

11

12

11

11

12

12

12 

13

13

387

12.5

768

-2,950

2,405

Sept.

13

13

13

13

14

14

14

14

*13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

12

12

12

11

7.4

7.2 

9.0

370.6

12.4

735

-1,550

1,640

Adjusted for chanse in reservoir contents and evaporation

Mean

Cfsm

In.

Ac-ft

_

-

_

-

_

-

208

12,790

1,257

69,810

478

29,380

219

13,010

292

17,980

58.7

3,490

9.89

608

3.63

223

13.9

825

Calendar year 1956: 

Water year 1956-57:

Max 

Max

22 ,7OO 

157

Mln 

Min

3.4 

3.4

Mean 

Mean

159 

32.4

Ac-ft 

Ac-ft

551, 

23,

300 

480

Adjusted

Calendar year 1956: 

Water year 1956-57:

Mean 

Mean 210

Cfsm 

Cfsm

In. 

In.

Ac-ft 

Ac-ft 152, 300

Discharge measurement made on this day; 

t Change in contents, in acre-feet, in Lake Berryessa, furnished by Bureau of Reclamation. 

* Evaporation from Lake Berryessa, in acre-feet, furnished by Bureau of Reclamation.
512 SACRAMENTO RIVER BASIN

Putah Creek near Davls, Calif.

LI~cation.--Lat 38°31'24", long 1S1°47'10", in 3E£ sec. 19, T. 8 N. , R. C E., on right bank 

in Los Putos Grant, 3.3 miles southwest of Davis and 9.9 miles east of Winters.

Drainage area.--636 sq mi.

Records available.--May 1948 tc September 1957.

Gage. Water-stage recorder. Altitude of gage is 45 ft (from topographic map). Prior to 

Dec. 16, 1948, at datura 2.00 ft higher.

Average discharge.--9 years, 439 cfs (317,800 acre-ft per year).

Extremes.--Maximum discharge during year, 1,150 cfs Feb. 24 (gage height, 3.93 ft); no 

flew for several months.

1948-57: Maximum discharge, 46,600 ?fs Dec. 22, 1955 (gage height, 24.36 ft); no 

flow for several months each year.

Remarks.--Records good except those for period of doubtful gage-height record, which are 

fair. Low-water records are net equivalent to records at Winters or near Winters. 

Several pumps above station at times furnish supplemental irrigation water for about 

COO acres between stations near Winters and near Davis. Low flows during summer months 

due tc return flow from irrigation. Flow regulated by Lake Berryessa beginning 

Jan. 11 , 1957.

Cooperation. Four discharge measurements furnished by California Department of Water 

Resources.

Revisions (water years). WSP 1285: 1949(M), 1951, drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and

discharge. In cubic feet per second) 

(Shifting-control method used Jan. 13-29, Feb. 7-24)

1 to Feb. 24 Feb. 24 to Sept. 3u

1.5

1.6

1U4 

230 

380 

550

1.4 

4.1

'hargp, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

b

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

*0

.5

. 3

0

.1

U

0

0

d.5

d.5

d.6

dl.5

dl .5

d2.3

d2.£

dl.2

dl.6

d.4

d.2

d.4

0

u

0

0

*0

0

0

0

0 

*0

0

14.2

0.46

28

Nov.

(*)

0

0

0

Dec.

(*)

0

0

0

Jan.

0

»0

0

*0

0

0

0

0

0

0

0

0

11

4.0

1.8

.8

.5

3.4

16

30

25

24

24

24

*25

17

26

32

35

*13

32

344.5

11.1

683

Feb.

24

30

28

27

31

34

27

40

19

19

16

13

5.0

*12

20

12

18

4.2

1.1

2.5

4.0

7.4

39

436

238

»56

41

32

-

1,236.2

44.2

2,450

Mar.

28

26

24

21

22

26

26

22

24

20

21

22

21

21

26

27

26

26

24

*22

20

19

20

21

21

*21

17

20

20

20

21

695

22.4

1,380

Apr.

20

T7

*17

17

20

19

17

18

16

18

*19

17

13

15

14

*14

16

15

20

16

16

16

14

14

12

16

19

14

11 

9 4

479.4

16.0

951

May

12

12

13

9.4

10

10

7.6

12

6.0

*8.2

4.4

4.1

4.1

3.8

5.2

6.0

9.4

15

24

11

31

26

13

11

8.8

6.0

8.8

9.4

7.0 

6.5

4.4

339.1

10.9

673

June

4.8

4.4

4.4

.9

*1.4

4.1

6.5

6.0

7.6

7.0

5.6

*4.1

.8

1.4

2.3

2.9

5.2

6.0

2.9

1.0

1.2

.4

3.2

1.8

0

o

.4

.6

.8

88.5

2.95

176

July

0.9

.9

.8

.8

.8

.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

.7

1.2

.8

1.2

.2

0 

0

5.7

12.8

0.41

25

Aug.

3.8

1.4

1.8

.6

2.3

2.9

1.6

0

0

0

0

0

0

0

*0

0

0

0

o

0

0

0

0

0

0

0

0

0

0 

0

0

14.4

0.46

29

Sept.

(*)

0

0

0

Calendar year 1956: Max 23,000 Min 0 Mean 737 Ac-ft 535,300

Water year 1956-57: Max 436 Min 0 Mean 8.83 Ac-ft 6,400

* Discharge measurement or observation of no flow made on this day.

d Doubtful gage-height record; discharge computed fron reconstructed gage-height graph based 

ecorded graph.
SACRAMENTO RIVER BASIN 513

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S £

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514 SACRAMENTO RIVER BASIN

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Red Ba

A series of discharge measurements was mad

14.7 miles in length, between the Department 

the bridge on U. S. Highway 99W, 1.0 mile abo

Hiles

above

mouth

Location

Field estimate.

substantially in
516

SACRAMENTO RIVER BASIN

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SACRAMENTO RIVER BA

Elder Creek seepage Investiga

above

mouth

26.1

Location

Meas. 

disch.

68.5

65.0

51.6

Gain 

Loss

- 7

-5.1
518 SACRAMENTO RIVER BASIN

s

o tt»

o o o o

? ?

.1

£|||
Deer 

A series of discharge measurements was made 

8.4 miles In length, between the gaging station 

The investigations were made during periods of 

gation nade each year 1952-57.

Miles

above 

mouth

Location

Inflow. ..........................

U. S. Highway 99E.

Ju

Me 

d

s Discharge determined from stage-discharge rela

Note. As sffected by amall Inaccuracies Inheren

ibstantlally in error.

Pine 

A series of discharge measurements was made on 

in a reach 5.8 miles in length, between the Burea

a point at U. S. Highway 99E. The investigations 

of the creek. Seepage investigation made each ye

above 

mouth

5.8

3.1 

.0

Note 

subatt

Location

Bureau of Reclamation gaging

Meridian Road crossing. ........ 

U. S, Highway 99E crossing.....

Over-all net gain or loss......

Meas. 

dlsch.

9.9

8.1 

4.0 

a. 2

G

L

+

-

-

intially in error.
SACRAM

Big Chico Creek se

a&ove Location

Inflow. .............................

Meas. 

tlisch.

3.7

0

Gain 

loss

-

M

t

Note. As affected

Lindo Channel of Big Chico 

Creek, in a reach 8.2 miles in length, between "5 mile dan" on Big 

investigation made each year 1952-57.

Miles 

above 

mouth a/

10.6

2.4

Location

At "5 mile dam" ........................

Apr. 30, 1957

Meas. 

disch.

3.7

0

Gain 

loss

-2.1

-3.7

a Total channel 

b Field estimate 

Note. As affect
C

A series of discharge measurements was made 

length, between the gaging station near Capay a

were made during periods of fairly, although no

year 1952-57.

Miles 

above 

mouth

27.8

26.1 

23.9 

21.9 

18.8 

15.2

15.2 

13.1 

8.2 

5.0

Location

East line Guesisosi Grant ............

Over-all net gain or loss ............

substantially in er
522 NAPA RIVER BASIN

Napa River near St. Helena, Calif.

Location. Lat 38°29'40", long 122"25'50", in SE£ sec. 32, T. 8 N. , R. 5 W. , on right 

bank 0.2 mile upstream from highway bridge, 1.3 miles northeast of Zinfandel, and 

2.5 miles east of St. Helena.

Drainage area. 81.3 sq mi.

Records available .---November 1929 to September 1932, November 1939 to September 1957.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 200 ft (from 

topographic map).

Average discharge. 19 years (1930-32, 1940-57), 85.8 cfs (62,120 acre-ft per year); 

median of yearly mean discharges, 62 cfs (44,900 acre-ft per year).

Extremes. Maximum discharge during year, 3,110 cfs Feb. 24 (gage height, 7.09 ft); no 

flow at times.

1929-32, 1939-57: Maximum discharge, 12,600 cfs Dec. 22, 1955 (gage height, 

15.17 ft); no flow at times during 1947-49, 1952-57.

Remarks. Records good. Small diversions above station for irrigation. Records of 

chemical analyses, water temperatures, and suspended sediment loads for the water 

year 1957 are given in WSP 1523.

Revisions. WSP 1285: Drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

in cubic feet per second)

0.5

.6

.9 

1.0 

1.2 

1.4

Oct. 1 to Feb. 24

O 1.7

.8 2.0

1.8 2.5

3.3 3.0

6.4 4.0

13 5.0

30 6.0

Feb. 25 to Sept. 30

111

177

317

500

985

1,580

2,260

0

.8

1.8

3.3

6.6

12

20

1.2 

1.4 

1.6 

2.0 

2.5 

3.0 

4.0

100

186

325

500

985

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

 ^0.1

1.1

1.0

1.2

1.1

1.2

1.3

1.3

1.3

1.4

1.3

.7

1.1

1.2

1.1

1.0

.8

.7

.9

.9

1.0

.9

.8

.8

.9

2.4

2.8

2.3 

*32

215

85.4

2.75

169

Nov.

5.9

4.4

3.5

3.1

2.9

2.9

2.9

2.9

2.6

276

2.6

2.9

3.1

2.8

2.8

2.9

3.1

3.3

2.9

2.6

2.8

2.9

3.7

3.1

3.1

3.1

3.1

3.1

3.1

3.1

93.8

3.13

186

Dec.

3.1

37T

3.1

*3.5

3.7

3.7

3.9

J7T

3.7

3.5

3.5

3.5

3.5

3.5

3.7

3.7

3.5

3.7

3.7

3.7

3.9

3.7

3.7

3.7

3.7

3.7

3.7

3.9

3.9

3.9

3.9

112.7

3.64

224

Jan.

3.9

3.9

3.9

3.9

3.9

3.9

3.7

172

4.4

*4.2

4.7

13

83

37

28

20

14

10

9.7

212

49

26

20

17

15

14

12

11

10

10

9.7

665.0

21.5

1,320

Feb.

*9.0

9.0

8.3

8.3

8.3

1T^ 7.6

23

16

13

12

12

12

11

11

10

10

10

9.7

9.7

76

87

1,050

2.250

960

701

528

295

-

6,168.9

220

12,240

Mar.

*212

155

165

241

566

331

209

149

155

115

104

272

176

132

278

241

179

140

113

96

81

72

65

60

58

53

52

49

49

47

ii

4,481

145

8,890

Apr.

*43

40

37

34

33

30

29

27

27

26

25

24

25

63

36

32

60

-JZ 127

57

49

43

37

34

33

29

27

25

24

22

1,170

39.0

2,320

May

*24

37

27

24

22

21

21

24

29

26

27

24

22

22

22

20

5t>

396 2£S~

278

272

153

110

85

72

60

53

49

46

43

39

2,334

75.3

4,630

June

34

33

26

25

22

22

22

21

22

20

18

16

14

14

13

12

13

10

*9.7

8.6

7.1

7.6

9.1

6.2

S.O

5.8

6.6

6.6

5.8

5.4

437.5

14.6

868

July

6.6

473

3.5

3.5

5.0

3.5

4.3

2.3

2.6

3.1

1.8

1.8

2.8

3.3

1.7

1.6

1.2

1.4

2.3

3.3

2.1

1.8

2.8

1.3

1.2

1.2

.9

1.9

1.2

*.7

75.7

2.44

150

Aug.

1.3

1.1

.9

.8

.8

.5

1.0

.6

.2

.1

.1

1.1

1.6 r7?

1.6

.5

.6

.8

.7

1.1

.8

.8

.5

.5

1.3

1.4

1.4

1.3

1.2

.3

0

26.1

0.84

52

Sept.

0

&

.1

.1

.4

.3

0

0

.2

0

0

0

*0

o

0

o

0

.9

1.0

.6

0

0

0

0

0

0

1.0

7.1

4.3

3.3

19.3

0.64

38

Calendar year 1956: Max 5,960 Min 0 Mean 144 Ac-ft 104,200

Water year 1956-57: Max 2,250 Mln o Mean 42.9 Ac-ft 31,090

Peak discharge (base, 2,300 cfs).--Feb. 24 (6 p.m.) 3,110 cfs (7.09 ft). 

* Discharge measurement or observation of no flow made on this day.
NAPA RIVER BASIN 523

Conn Creek near St. Helena, Calif.

Location.--Lat 38°28'55", long 122°22'25", in SW^SW^- sec-. 1, T. 7 N., R. 5 W., in outlet 

pool at toe of Conn Dam, 1.8 miles upstream from bridge on State Highway 28, 5.4 miles 

east of St. Helena, and 8 miles upstream from mouth.

Drainage area. 52.3 sq mi.

Records available.--November 1929 to September 1957.

Gage. Water-stage recorder and battery of five 90° V-notch sharp-crested weirs. Altitude 

of gage is 230 ft (from topographic map). Prior to Aug. 5, 1952, at site 1.6 miles 

downstream at different datum. Since Aug. 5, 1952, auxiliary water-stage recorder in 

spillway at different datum.

Average discharge. 15 years (1930-45), prior to construction of Conn Dam, 34.7 cfs 

( 25,100 acre-ft per year).

Extremes. Maximum discharge during year, 41 cfs Jan. 9 (gage height, 1.61 ft); no flow 

for several months.

1929-57: Maximum discharge, 7,700 cfs Feb. 27, 1940 (gage height, 11.80 ft, site 

and datum then in use); no flow for long periods in each year.

Remarks. Records good. Plow regulated by Lake Hennessey beginning in December 1945

(capacity, 31,000 acre-ft); contents, 25,700 acre-ft Sept. 30, 1956, and 25,500 acre-ft 

Sept. 30, 1957. Combined flow published is flow through dam; no flow over spillway 

during year.

Diversion from Lake Hennessey for water supply of city of Napa amounted to 

4,660 acre-ft for the water year 1957.

Revisions. WSP 1245: Drainage area.

Discharge, In cubic feet per second, water year October 195® to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

0

Nov.

0

0

0

Dec.

(*)

0

0

0

Jan.

0

rs

0

0

0

0

0

0

rj 1.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.9

0.06

3.8

Feb.

(*)

0

0

0

Calendar year 1956 : Max 1,750 Mln 0

Mar.

(*)

0

0

0

Apr.

0

0

0

May

5.0

5.0

5.0

5.0

5.0

*5.0

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

3.9

3.3 3~73

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

3.3

6.1

f ' A

5 .8

130.0

4.19

258

June

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.8

6.6

6.6

6.6

6.6

6.6

7.7

8.9

S7T

8.9

*8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

8.9

235.2

7.84

467

July

6.6

4.9

4.8

4.8

4.8

4.8

4.8

4.8

4.8

6.6

6.7

575- 7.7

5.2

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.4

4.4,

4.4

4.9

5,2

5.2

5.2

5.2

*4 .8

4.8

156.9

5.06

311

Mean 64.1 Ac-ft 46.550

Aug.

4.8

47?

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

3.9

3.3

373

3.3

3.3

3.3

3.4

3.4

3.4

3.4

3.4

3.6

3.6

3.6

3.6

3.6

3.6

122.3

3.95

243

Sept.

3.6

37?

3.6

3.6

3.6

3.6

3.6

4.2

3.7

3.7

3.7

3.7

*3.7

3.7

3.7

3.7

3.7

3.7

4.8

5.2

5.2

5.2

5.4 r^

5.4

5.4

5.4

5.4

5.4

5.4

130.0

4.33

258

Water year 1956-57 : Max 8.9 Mln 0 Mean 2.13 Ac-ft 1,540

* Discharge measurement or observation of no flow made on this day.

Note. No gage-height record Mar. 28 to May 6; discharge estimated on basis of records furnished 

by city engineer of Napa.
524 NAPA RIVER BASIN

Dry Creek near Napa, Calif.

Location. Lat 38°21'23", long 122°21'50", in Napa Grant, on right bank 3.7 miles 

upstream from mouth and 5.5 miles northwest of Napa, Napa County.

Drainage area. 17.4 sq mi.

Records available. January 1951 to September 1957.

Gage. Water-stage recorder. Concrete control since June 14, 1955. Altitude of gage 

is 190 ft (from topographic map). Prior to June 14, 1955, at site 350 ft downstream 

at different datum.

Average discharge. 6 years, 23.0 cfs (16,650 acre-ft per year).

Extremes.--Maximum discharge during year, 500 cfs Feb. 24 (gage height, 4.70 ft); no 

flow for many days.

1951-57: Maximum discharge, 2,600 cfs Dec. 19, 1955 (gage height, 7.25 ft); no 

flow for many days each year.

Remarks. Records fair. Several small diversions for irrigation above station. Occasional diversion around station through 6-inch pipe for domestic use on farm below 

station.

Rating table, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Oct. 28 to Dec. 10, June 2-13, 

June 22 to July 31, Sept. 27-30)

2.03

2.1

2.2

2.3

2.4

2.5

2.6

2.7

1.4 

2.1 

3,0 

4.7

2.8

2.9

3.0 

3.2 

3.4 

3.7 

4.0 

4.5

6.9

9.8

14

26

49

96

200

405

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0 

75

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

*6.6

M A

L. , D

9.4

0.30

19

Nov.

1.5

1.6

1 .6

1.4

.5

.3

74

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

18.5

0.62

37

Dec.

~75 0.5 

*.5

.6

.8

.8

.7

.6

.7

.7

.8

.8

.8

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

i±°

20.5

0.66

41

Jan.

'.1

.7

.8

.8

.8

.9

1.0

*1.0

1.2

5.0

20

7.9

4.7

3.2

2.6

2.3

2.3

3!

7.9

4.7

3.8

3.0

2.9

2.7

2.5

2.3

2.1

2.0

1.9

132.1

4.26

262

Feb.

1.9 

1.9

1.8

1.7

1.6

1.6

3.9

5.9

3.4

2.8

2.6

2.4

2.3

2.3

2.2

2.1

2.0

1.9

1.9

2.0

*5.5

6.6

142

392

TEE

86

67

54

-

929.3

33.2

1,840

Mar.

37

42

52

76_

62

50

44

41

33

28

34

29

23

44

44

39

34

30

25

21

19

17

16

*15

13

12

11

11

10

IS

967

31.2

1,920

Apr.

9.1 

8.5

8.5

8.5

8.5

7.9

7.4

6.6

6.2

5.9

5.5

5.1

17~4.9

7.4

7.2

19

31

T5

14

12

11

9.4

8.8

7.4

6.4

5.7

5.3

5.1

4.9

282.2

9.41

560

May

6.9

5.3

4.5

4.1

*3.9

4.1

5.3

5.9

4.9

4.5

3.8

4.3

3.8

3.6

3.3

375

47

3T

40

44

30

21

18

16

13

11

10

9.4

3 . 5

7.9

386.4

12.5

766

June

773

6.6

6.4

5.9

5.7

5.5

5.2

5.3

5.3

4.9

4.3

4.2

3.3

3.0

2.8

2.3

2.2

*2.3

2.3

2.1

1.9

2.0

1.6

1.6

1.5

1.3

1.4

1.2

T74

107.9

3.60

214

July

1.4 

T74

1.4

1.2

1.3

1.0

1.0

1.2

1.0

.9

.9

.8

.8

.8

.8

.7

.5

.5

.8

.9

.7

.6

.6

.4

.3

.3

.3

.2

*72

.1

23.1

0.75

46

Aug.

0

0

0

Sept.

0 

5

0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

.9

77

.3

.2

2.1

0.07

4.2

Calendar year 1956: Max 942 Min 0 Mean 29.9 Ac-ft 21,740

Water year 1956-57: Max 392 Min 0 Mean 7.89 Ac-ft 5,710

Peak discharge (base, 450 cfs).--Feb. 24 (3 a.m.) 500 cfs (4.70 ft). 

* Discharge measurement or observation of no flow made on this day.
SONOMA CREEK BASIN 525

Sonoma Creek at Boyes Hot Springs, Calif.

Location. Lat 38°18'49", long 122°29'09", in Agua Caliente Grant, on left bank 10 ft 

downstream from county highway bridge at Boyes Hot Springs, Sonoma County, and 

2.2 miles northwest of Sonoma.

Drainage area. 62.7 sq mi.

Records available. February 1955 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 75 ft (from topographic map).

Extremes.--Maximum discharge during year, 1,450 cfs Feb. 24 (gage height, 7.59 ft); no 

flow for several days October, August, September.

1955-57: Maximum discharge, 8,880 cfs Dec. 22, 1955 (gage height, 17.10 ft), from 

rating curve extended above 4,100 cfs on basis of slope-area determination of peak 

flow; no flow for several days each year.

Remarks . Records good. No regulation or diversion.

Rating tables, water year 1956-57 (gage height, In feet, and discharge,

in cubic feet per second) 

(Shifting-control method used Nov. 22 to Jan. 12)

Oct. 1 to Feb. 24 Feb. 24 to Sept. 30

2.6

2.7

3.3

1.5

4.0

8.0

19

37

3.5 

4.0 

4.5 

5.0 

6.0

60

134

226

340

660 2.9

3.0 13 7.0

20

41

75

186

465

1,160

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

3.7

2.6

1.0

1.0

.6

.6

.8

.5

.5

1.3

1.3

.5

.1

.2

1.0

1.9

2.1

1.7

6.4

6.4

6.8

9.0

8.5

9.5

*50

rs

131.0

4.23

260

Nov.

7.2

576

4.4

3.4

2.9

2.6

2.6

2.6

2.3

2.3

2.3

2.3

2.3

2.1

?7T

2.1

2.1

2.1

2.1

2.3

2.6

2.6

2.6

2.6

2.6

2.6

2.3

2.3

2.3

2.3

82.5

2.75

164

Dec.

2.6

276

*2.6

3.4

4.4

4.0

3.4

3.2

3.2

3.2

3.2

2.9

2.9

2.6

3.2

3.2

3.2

3.2

3.2

3.2

2.9

3.4

3.4

3.7

3.7

3.4

3.4

3.2

3.4

3.4

3.4

100.7

3.25

200

Jan.

3.2

3.2

3.4

3.4

3.7

3.7

3.4

4.0

3.4

*2.9

16~ 1.7

55

20

12

8.0

5.6

4.0

4.0

166

29

15

12

11

11

11

11

11

11

11

11

470.6

15.2

933

Feb.

12

12

12

12

10

10

26

21

12

12

12

12

12

11

11

11

11

10

10

10

*78

60

523

1,010

387

*414

*270

205

-

3,196

114

6,340

Mar.

169

127

176

212

327

240

174

140

134

97

83

179

114

93

274

174

136

106

87

71

56

48

42

37

*36

35

33

30

3(5

30

30

3,520

114

6,980

Apr.

27

22

21

19

18

17

16

15

15

14

14

15

15

50

22

19

66

116

44

34

29

25

22

22

18

16

16

16

13

il

768

25.6

1,520

May

13

21

14

12

12

*11

11

14

17

15

14

12

12

12

11

10

II

ns- 208

160

148

87

58

46

36

26

25

22

22

20

19

1,237

39.9

2,450

June

16

15

14

14

12

12

12

11

11

12

11

10

10

9.0

8.0

7.2

5.9

5.3

*5.0

5.0

5.6

5.6

5.3

5.3

4.7

3.5

3.2

373

4.1

5.3

251.8

8.39

499

July

4.7

3.5

2.0

1.8

2.4

2.0

2.0

1.0

.9

.8

.7

.5

.4

.4

.2

.1

7Z

.2

.1

.1

.2

.1

.3

.3

.2

.1

.1

.3

.1

*.l

.1

25.9

0.84

51

Aug.

0.1

.1

.1

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.4

71

0

0

1.3

0.04

2.6

Sept.

0.1

.1

0

5

.1

.1

.3

.8

.8

.5

.1

0

.2

**.2

.5

1.2

1.0

.5

.1

0

.3

0

0

0

0

0

5.5

5.6

575

3.5

26.5

0.88

53

Calendar year 1956: Max 3,530 Mln 0 Mean 94.9 Ac-ft 68,870

Water year 1956-57: Max 1,010 Mln 0 Mean 26.9 Ac-ft 19,450

Peak discharge (base, 1,550 efs). Feb. 24 (6 a.m.) 1,450 cfs (7.59 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.
526 PETALUMA CREEK BASIN

Petaluma Creek near Petaluma, Calif.

Location. Lat 38°15'40", long 122°39'35", in Roblar de la Miseria Grant, on right bank 

70 ft downstream from county highway bridge, 1.3 miles downstream from Lichau Creek, 

and 2.0 miles northwest of Petaluma, Sonoma County.

Drainage area. 29.6 sq mi.

Records available . October 1948 to September 1957.

gage.--Water-stage recorder. Altitude of gage is 20 ft (from topographic map).

Average discharge. 9 years, 18.0 cfs (13,030 acre-ft per year).

Extremes. Maximum discharge during year, 124 cfs Feb. 26 (gage height, 5.97 ft); no flow 

for several months.

1948-57: Maximum discharge, 1,860 cfs Dec. 22, 26, 1955, Jan. 14, 1956; maximum 

gage height, 13.55 ft Dec. 22, 1955; no flow for several months each year.

Remarks. Records fair. No regulation or diversion.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 26 Feb. 27 to Sept. 30

2.85 0

2.9 .2

3.0 2.2

3.1 5.0

3.2 8.4

3.3 

3.5 

4.0 

5.0

2.7

2.8

2.9

3.0

3.1

0 

.3

1.4 

4.1 

7.2

3.2 

3.4 

4.0 

5.0

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

(*)

0

0

0

Dec.

0

0

0

Jan.

0

*0

0

0

0

0

0

0

0

0

0

.8

.6

.1

.4

.1

0

0

.1

ri

5.0 1.1

.2.1.1

.1

.1.1

0

0

0

19.9

0.64

39

Feb.

0

0

0

0

0

0

.1

 1.2

1.8

.6

.2

.2

.1

.1

.1

.1

.1

.1

0

0

10

12

56

64

42

60

*48

23

-

319.7

11.4

634

Mar.

28

18

20

44

6_i

35

20

13

15

9.4

6.6

14

10

6.6

28

21

11

7.5

5.3

4.1

2.9

1.8

1.4

1.2

1.4

*1.0 TTo"

1.0

1.0

1.2

1.4

392.8

12.7

779

Apr.

1.2

.9

.6

.4

.4

.3

.4

.3

.2

.2

.2

.2

.2

.9

1.4

.8

1.4

9.8

BTo

1.4

.8

.5

.3

.2

.2

.2

.1

.1

0

0

28.6

0.95

57

May

0

.1

.1

. 1

.1

.1

.1

. 1

.1

**.!

0

0

.1

.1

0

0

. 1

2.0

~6.3 13

10

7.5

2.4

.9

.5

.3

.2

.1

.1

0

0

44.5

1.44

88

June

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.1

0

0

0

0

0

*0

0

0

0.4

0.01

0.8

July

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Calendar year 1956: Max 1,190 Mln 0 Mean 26.6 Ac-ft 19,300

Water year 1956-57: Max 64 MLn 0 Mean 2.21 Ac-ft 1,600

Peak discharge (base, 400 cfs). No peak above base.

* Discharge measurement .or observation of no flow made on this day.

** Field estimate made on this day.
NCVATO CREEK BASIN 527

Novato Creek near Novato, Calif.

Location. Lat 38°06'45", long 122°35'05", in Novato Grant, on right bank 500 ft downstream from highway bridge and 1 mile west of U. S. Highway 101 in Hovato, Marin 

County.

Drainage area. 17.2 sq mi.

Records available. October 1946 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 45 ft (from topographic map).

Average discharge. 11 years, 10.2 cfs (7,380 acre-ft per year, unadjusted).

Extremes. Maximum discharge during year, 312 cfs Feb. 24 (gage height, 3.68 ft); no flow 

for several months.

1946-57: Maximum discharge, 1,130 cfs Dec. 3, 1950 (gage height, 7.97 ft); no flow 

for several months each year.

Remarks. Records good. Plow regulated by Stafford Lake beginning Dec. 1, 1951 (capacity, 

4,500 acre-ft since Oct. 18, 1954); contents, 1,850 acre-ft Sept. 30, 1956, and 

2,500 acre-ft Sept. 30, 1957. Diversion from Stafford Lake for municipal water supply 

began Apr. 25, 1952, and amounted to 1,436 acre-ft for water year 1957.

Revisions. WSP 1395: Drainage area.

Rating table, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used May 29 to Apr. 10)

1.1

1.1 

2.2 

4.0 

6.8

11

2.2

2.5

16

22

29

36

52

70

99

132

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

7J

0

.1

0

0

0

.1

.2

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

.2

.2

.2

.1

1.4

.4

3.4

0.11

6.7

Nov.

0.2

.2

.2

.1

 74

.5

.3

.3

.6

.2

.2

.2

.2

.2

.2

.2

.2

.1

.2

.2

.2

.1

.5

1.4

1.7

1.7

1.7

1.8

T78

1.5

17.3

0.58

34

Dec.

0.5

.4

.4

.4

.6

.5

.4

.3

.3

.3

.3

.3

.3

.3

.5

.5

.5

.4

.7

.7

.9

1.4

T7T

.9

1.3

.8

.2g"

.'2

.2

.2

16.0

0.52

32

Jan.

0.2

.3

.2

.3

.3

.2

.2

.3

.2

.2

4.4

470

1.0

.5

.3

.3

.3

.3

4.2

.5

.3

.3

.3

.3

.3

.2

.2

.3

.2

.2

21.2

0.68

42

Feb.

0.2

.3

.2

.2

.2

.2

.4

*.5

.3

.2

.2

.2

.2

.2

.2

,2

.1

72

.2

.3

2.8

6.1

40

125 -30"

28

15

*17

268.6

9.59

533

Calendar year 1956: Max 549 Mln 0

Mar.

13

8.8

13

16

26.

17

14

12

14

8.8

7.1

8.8

6.5

5.6

22

10

8.3

7.1

5.9

5.3

5.0

4.5

4.0

3.6

3.6

 3.0

2.8

2.6

2.6

2.5

2.4

265.8

8.57

527

Apr.

2.2

2.0

1.6

.5

.4

.3

.1

.1

1.1

1.0

1.0

1.1

1.2

2.2

1.3

1.1

2.4

2.4

.8

.6

.9

.8

1.1

.9

.7

.5

.5

75" .4

.4

35.1

1.17

70

May

0.5

.8

.5

.8

.6

.4

75

.9

1.1

*.6

.5

1.2

2.5

2.5

2.4

2.0

1.4

2.6

2.5

5.4

2.8

2.2

2.2

2.0

1.8

1.8

.6

.7

.6

.6

.5

48.5

1.56

96

June

1.4

1.4

1.5

1.4

1.4

1.2

1.2

1.0

1.0

.9

.7

.7

.7

.5

.5

.3

.4

.4

.3

.2

.2

.2

.2

.1

.2

.2

.1

*0"".I

.2

18.6

0.62

37

July

0.2

.1

.1

.1

.1

.1

0

0

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.9

0.03

1.8

Aug.

(*)

0

0

0

Mean 17.9 Ac-ft 12,970

Sept.

(*)

'

0

0

0

Water year 1956-57: Max 125 Mln 0 Mean 1.91 Ac-ft 1,380

Peak discharge (base, 200 cfs),"- Feb. 24 (12 m.) 312 cfs (3.68 ft).

* Discharge measurement or observation of no flow made on this day.
528 CORTE MADERA CREEK BASIN

Corte Madera Creek at Ross, Calif.

Location. Lat 37°57'45", long 122°33'20", in Punta de Quentin Grant, on left bank behind 

fire station at Ross, Marin County, 1.7 miles southwest of San Rafael and 4 miles 

upstream from mouth.

Drainage area. 18.3 sq mi.

Records available. February 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 8 ft (from topographic map).

Average discharge. 6 years, 28.6 cfs (20,710 acre-ft per year).

Extremes.--Maximum discharge during year, 652'cfs Feb. 23 (gage height, 7.63 ft); no flow 

for many days in October, August, September.

1951-57: Maximum discharge, 3,620 cfs Dec. 22, 1955 (gage height, 17.45 ft), from 

rating curve extended above 1,600 cfs by logarithmic plotting; no flow at times during 

most years.

Remarks. Records good. Plow regulated by Phoenix Lake (capacity, 612 acre-ft). Diversion on tributary above station by Marin Municipal Water District.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0 

0

0 

0

0

0

O

o

0

0

.4

.1

.1.1

.1

. i

.1

.1

.1.1

.1.1

.1

.1

.2

1.5

1.0

1.0

2.0 

3.0

To

11.4

0.37

23

Nov.

0.9 

.9

.8 

78

.8

.8

.9

1.0

1.4

1.5

1-.6

1.6

1.6

1.7

1.8

1.5

1.5

1.7

1.9

2.3

2.3

2^5

2.5

2.5

2.3

*1.5

1.5

1.5

1.3

1.3

46.2

1.54

92

Dec.

1.2 

.9

175-

1.7

1.8

T78

1.7

1.3

1.0

.9

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

28.8

0.93

57

Jan.

0.7 

*.7

.7 

.9

1.0

.7

.7

1.9

.7

^6.

7.4

78

30

5.2

4.0

2.3

2.3

2.3

13

124

9.7

5.6

4.0

3.5

3.0

3.0

2.8

3.2

2.3

2.3

2.1

318.6

10.3

632

Feb.

2.8 

5.4

2.1 

1.9

T79

1.9

45

*17

7.0

5.2

4.0

3.5

3.5

3.2

3.0

2.5

2.5

2.3

2.1

3.8

111

67

327

3TJT

178

108

71

*58

1,341.6

47.9

2,660

Mar.

40 

26

30 

36

46

35

26

26

58

40

30

44

28

22

116

65

56

38

28

20

16

15

19

10

9.2

*8.3

7.4

7.0

7.4

7.0

6.J5

922.9

29.8

1,830

Apr.

5.6 

4.9

4.6 

4.0

3.8

3.8

3.8

3.5

3.5

3.5

3.2

3.2

13

18

4.6

6.2

2818"

8.3

7.8

5.9

5.2

4.6

4.0

3.8

3.5

3.2

3.0

3.0

2.8

190.3

6.34

377

May

4.0 

6.6

3.2 

3.0

2.8

2.8

2.8

6.6

4.6

*3.8

3.2

2.8

3.0

3.0

2.3

2.3

5.7

215

91

106

96

58

35

25

17

14

12

10

8.8

7.8

7.0

765.1

24.7

1,520

June

6.2

BTe

5.2 

4.9

4.6

4.0

3.5

3.5

3.2

3.2

3.0

3.0

2.8

2.5

2.5

2.3

2.3

2.1

2.1

1.9

1.9

1.7

1.7

1.5

1.5

1.5

1.5

 1.5

1.3

T7T

83.8

2.79

166

July

fct

1.2 

1.0

1.0

1.0

.9

.9

.9

.9

1.0

.9

.9

.7

.9

.6

.6

.6

.7

.9

.7

.7

.6

.4

.4

.4

.4

.3

7J

.3

.3

22.9

0.74

45

Aug.

*0.6

!l 

.3

.3

.3

.1

.3

.3

.3

0

TJ

0

0

0

0

0

0

0

0

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

3.9

0.13

7.7

Sept.

0.1 

0

0 

0

0

0

0

0

0

0

.1

.1

*.l

.3

.4

.3

.3

.1

.1

.3

0

0

0

.1

.9

1.2

14

T.3

1.2

O

24.9

0.83

49

Calendar year 1956: Max 1,060 Min 0 Mean 26.7 Ac-ft 19,380

Water year 1956-57: Max 327 Min O Mean 10.3 Ac-ft 7,460

Peak discharge (base, l.OOQ cfs). No peak above base.

* Discharge measurement made on this day.

a No gage'-helght record Oct. 13 to Nov. 17, Dec. 6 to Jan. 1; discharge estimated on basis of 

weather records and records for Arroyo Nicasio near Point Reyes station.
LAGUNITAS CREEK BASIN 529

Arroyo Nicasio near Point Reyes Station, Calif.

Location. Lat 38°04'20", long 122°45'30", in Nicasio (Buckelew) Grant, on left bank 

0.9 mile upstream from mouth and 2.7 miles east of Point Reyes Station, Marin County.

Drainage area. 36.2 sq mi.

Records available. July 1953 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 60 ft (from topographic map).

Extremes. Maximum discharge during year, 920 cfs Feb. 24 (gage height, 5.84 ft); no 

flow for many days in August and September.

1953-57: Maximum discharge, 9,010 cfs Dec. 22, 1955 (gage height, 14.57 ft), from 

rating curve extended above 2,900 cfs on basis of slope-area determination of peak 

flow; no flow for many days each year.

Remarks. Records good. Small diversions for irrigation above station. 

Revisions (water years). WSP 1395: 1954(M).

Rating table, water year.1956-57 (gage height, In feet, 

and discharge. In cubic feet per second)

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

1.1

2.6

4.8

8.0

12

2.9

3.0 

3.2 

3.5 

4.0 

5.0 

6.0

18

26

48

87

195

540

1,000

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.1

T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.2

jJL i

3.8

0.12

7.5

Nov.

0.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.5

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

4.9

0.16

9.7

Dec.

0.1

.1

.1

.2

72

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.6

0.12

7.1

Jan.

0.1 *7T

.1.1

.1

.1.1

.1

.2

.2

.3

10

15

5.3

3.2

2.1

1.6

1.4

1.4

47.

11

5.6

4.0

3.4

3.0

2.8

2.4

2.1

2.1

2.3

1.6

128.8

4.15

255

Feb.

1.6

1.8

1.5

1.4

1.2

1.2

4.8

*11

5.9

4.8

3.8

3.4

3.2

2.8

2.6

2.4

2.3

2.3

2.1

2.3

15

28

324

583

235

180

113

*124

1,659.4

59.3

3,290

Calendar year 1956: Max 2,040 Mln 0

Mar.

103

70

129

176

284

170

113

94

118

79

65

98

66

55

142

111

109

79

64

49

39

30

24

21

19

*17

15

14

13

12

13

2,391

77.1

4,740

Apr.

10

9.2

8.0

7.2

6.9

6.6

5.9

5.6

5.3

5.0

5.0

5.0

5.3

21

7.2

6.9

19

35

16

14

11

9.6

8.4

7.6

6.9

6.2

5.6

5.0

4.8

4.1

273.8

9.13

543

May

4.6

6.6

4.6

4.0

3.6

3.4

3.4

4.8

6.6

*5.6

4.6

4.0

3.8

4.3

3.6

3.2 376"

84

60

101

~67 113

46

34

26

20

15

13

12

10

8.8

682.1

22.0

1,350

June

7.6 ^79"

6.2

5.9

5.3

4.6

4.3

4.0

3.8

3.6

3.2

3.0

2.8

2.6

2.0

2.3

1.8

1.5

1.5

1.4

1.4

1.4

1.0

.8

.7

.6

77

*.7

.7

.7

83.0

2.77

165

July

0.7

.7

.7

.6

.4

.2

.2

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

6.2

0.20

12

Aug.

*06"

.1

.1

.1

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.4

0.01

0.8

Sept.

6"0

0

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

.2

TS~ .4

.2

.2

1.3

0.04

2.6

Mean 47.6 Ac-ft 34,510

Water year 1956-57: Max 583 Mln 0 Mean 14.4 Ac-ft 10,380

Peak discharge (base, 1,400 efs). So peak above base.

Discharge measurement or observation of no flow made on this day.
530 RUSSIAN RIVER BASIN

Russian River near Ukiah, Calif.

Location. Lat 39°12'10", long 123°12'00", in Yokayo Rancho Grant, on left bank 20u ft 

downstream from York Creek, 0.7 mile upstream from East Pork, and 3.6 miles north of 

Ukiah, Mendocino County.

Drainage area. 99.6 sq mi.

Records available.-.-August 1911 to August 1913, October 1952 to September 1957.

Gage. Water-stage recorder. Datum of gage is 614.02 ft above mean sea level (levels by 

(Torps of Engineers). Prior to October 1952, staff gage at bridge 0.6 mile downstream 

at different datum.

Average discharge.--6 years (1911-12, 1952-57), 174 cfs (126,000 acre-ft per year).

Extremes. Maximum discharge during year, 8,340 cfs Jan. 20 (gage height, 11.24 ft), minimum, 0.2 cfs Oct. 13-25, 28.

1911-13, 1952-57: Maximum discharge, 18,900 cfs Dec. 21, 1J55 (gage height, 

19.0 ft), from rating curve extended above 13,000 cfs on basic, ? slope-area determination of peak flow; no flow Sept. 11 to Oct. 18, Oct. 22, 1911, Oct. 1, 3, 10, 1953.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Small diversions above station for irrigation. Records of chemical analyses for the 

water year 1957 are given in WSP 1523.

Revisions.--WSP 1395: Drainage area.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, in cubic feet per second) 

Oct. 1-30 Oct. 30 to Jan. 20 Jan. 20 to Sept. 30

1.5

1.6

1.8

1.9

0.2

1.9 

3.6

2.0 

2.2 

2.5 

3.0 

3.3

40

66

189

264

1.6

1.7

2.1 

2.4

2.8 

3.2 

3.6 

4.0

5.0

162

278

450

690

1,380

0.6

1.5

0.2

.6

3.8

9.2

17

37

72

2.5 

3.0 

4.0 

5.0 

7.0 

9.0

152

258

440

990

1,650

3,270

5,300

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3 

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.4

.4

.4 

.4

.4

.4

.3

.3

.3

.4

.4

.3

.2

7?

.2

.2

.2

**.2

.2

.2

.2

.2

.2

.2

.2

.4

.4

.2

.3

271

144

423.3

13.7

840

Nov.

63

54

36 

25

18

14

12

10

8.7

8.0

6.7

5.0

4.1

4.1

5.0

5.5

5.0

4.5

4.5

4.5

4.1

4.5

4.1

4.1

4.1

3.7

3.3

377

3.7

3.7

336.6

11.2

668

Dec.

4.1

4.1

H7.3

16

1?

11

9.4

8.7

9.4

12

12

12

12

10

9.4

8.7

8.7

8.7

8.0

8.7

10

8.7

7.3

6.7

 6.1

6.1

6.1

6.1

5.5

265.0

8.55

526

Jan.

5.5

5.5

5.0

575

5.5

5.0

5.0

7.3

12

11

14

459

1,250

565

445

*174

106

74

443

2.540

640

377

284

241

230

216

186

174

156

147

138

8,926.3

288

17,710

Feb.

139

174

150 

141

136

132

132

139

138

134

129

124

124

120

117

112

110

107

103

110

432

336

2,930

4.560

1,930

1,570

912

520

15,761

563

31,260

Calendar year 1956: Max 8,380 Mln o.2

Mar.

*343

261

543 

1,500

2.330

1,290

680

450

520

330

327

1,350

768

485

 925

640

540

355

276

225

188

162

141

126

114

103

94

112- 90

115

102

15,485

500

30,710

Apr.

90

81

75 

70

65

61

59

55

53

50

49

48

52

154

*85

75

203

210

T3S

114

98

88

77

71

65

61

58

54

50

4_7

2,454

81.8

4,870

May

48

73

55 

46

41

39

38

58

68

52

46

41

44

42

38

36

39

821

643

430

279

196

156

126

103

90

80

 68

62

58

53

3,966

128

7,870

June

48

4T

41 

38

35

32

29

26

23

20

18

16

14

13

12

11

11

10

10

9.5

8.5

8.0

8.0

7.5

7.2

7.0

7.0

6.8

375

6.8

535.1

17.8

1,060

July

6.8

67F

6.4 

6.2

6.0

5.4

5.0

4.6

4.2

*3.8

3.0

2.3

1.8

1.6

1.5

1.5

1.6

2.4

1.6

1.6

1.6

2.0

1.6

.9

.7

.6

.7

2.2

.5

'.5

85.7

2.76

170

Aug.

0.5

.5

.5 

.5

.4

.6

.6

.6

.6

.5

.6

.7

.7

.5

.5

.5

.5

.6

.6

.6

.6

.6

.5

.5

.5

.4

.5

*.5

.5

.5

16.9

0.55

34

Sept.

0.5

.6

.6 

.6

.6

.6

.5

.5

*

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.9

15

12

10

25

76.4

2.55

152

Mean 228 Ac-ft 165,200

Water water year year 1956-57: is&e-sf: Max Max 4,560 4,560 Mln Mln 0.2 0.2 Mean Mean 132 132 Ac-ft AC-IT 95,870 95,870

Peak discharge (base, 4,000 cfs). Jan. 20 (1 a.m.) 8,340 cfs (11.24 ft); Feb. 24 (2 p.m.) 6,490 cfs 

(9.92 ft); Mar. 4 (10:30 p.m.) 4,340 efs (8.09 ft).______________________________________

* Discharge measurement made on this 

Field estimate made on.this day.

Note. No gage-height record June 6 to July 16; discharge estimated on basis of records for Dry 

reek near Cloverdale.
RUSSIAN RIVER BASIN 531

East Fork Russian River near Calpella, Calif.

Location. Lat 39°14'35", long 123"08"10", in NE£ sec. 13, T. 16 N., R. 12 W., on left 

bank 0.5 mile downstream from Cold Creek and 3.6 miles east Calpella. Prior to 

May 28, 1957, at site 0.9 mile downstream.

Drainage area. 93.0 sq mi.

Records available. November 1941 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 800 ft (from topographic map). Prior 

Eb May 28, 1957, at site 0.9 mile downstream at different datum.

Average discharge. 15 years (1942-57), 316 cfs (228,800 acre-ft per year).

Extremes. Maximum discharge during year, 5,430 cfs Jan. 20 (gage height, 10.20 ft, site 

and datum then in use); minimum daily, 77 cfs Nov. 28.

1941-57: Maximum discharge, 13,300 cfs Dec. 21, 1955 (gage height, 15.06 ft, site 

and datum then in use), from rating curve extended above 8,600 cfs; minimum daily, 

7.5 cfs Dec. 13, 1943.

Remarks. Records good. Flow greatly affected by diversion from Eel River through

Potter Valley powerhouse (see p. 545). Small diversion above station for irrigation. 

Records of chemical analyses for the water year 1957 are given in WSP 1523.

Revisions. WSP 1041: Drainage area at former site.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to May 27 May 28 to Sept. 30

1.5 

1.9 

2.4 

3.0 

4.0

73

105

159

261

510

5.0 

6.0 

7.0 

9.0

9.05

1,390

2,000

3,900

1.6 

1.8 

2.0 

2.5 

3.0

153

194

240

375

530

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

21

28

29

30

31

Total

Mean

Ao-ft

Oct.

218

211

209

205

214

214

216

230

227

227

227

230

230

232

234

232

230

*225

232

230

232

236

243

232

230

247

236

239

247

446

32?

7,390

238

14,660

Nov.

282

25T

250

247

243

239

238

140

*236

234

234

232

225

232

229

230

232

230

232

230

230

223

225

162

155

79

131

77

135

156

6,260

209

12,420

Dec.

155

155

92

155

102

~SS 165

154

154

152

155

109

107

105

98

92

93

*99

99

99

99

99

99

99

99

99

*100

102

100

99

97

3,518

113

6,980

Jan.

99

99

97

94

93_

94

99

102

100

99

122

568

1,260

527

512

304

*216

192

503

1,640

429

335

267

238

236

218-

182

177

172

160

159

9,393

303

18,630

Feb.

166

188

166

162

158

156

154

168

171

162

159

155

154

156

159

159

158

158

151

T6T

331

382

2,170

5,570

1,120

1,120

763

559

13,039

466

25,860

Calendar year 1956: Max 5,580 Min 77

Mar.

*486

441

550

1,150

1.640

1,020

703

580

548

474

468

1,060

707

604

1,030

763

635

542

489

450

423

401

390

382

371

364

354

349

304

272

252

18,202

587

36,100

Apr.

232

209

198

198

195

190

182

174 T9~2

195

320

322

327

393

*335

544

455

441

380

364

356

347

338

335

331

329

329

327

324

320

8,978

299

17,810

May

342

361

335

329

327

329

327

347

352

342

335

331

335

355

333

329

333

808

635

556

495

423

396

380

361

347

342

*330

527

327

324

11,769

380

23,340

June

321 318"

308

302

278

230

218

209

221

209

214

205

198

201

205

190

184

186

169

169

173

173

171

165

T5T

171

169

165

173

190

6,252

208

12,400

July

188

190

173

196

154

184

175

175

173

*161

169

184

188

192

190

186

179

173

188

190

196

179

177

184

184

179

175

177

190

188

177

5,650

182

11,210

Aug.

181

190

188

205 T90"

177

186

177

175 isa

186

190

177

190

188

186

177

188

181

179

190

205

188

184

186

194

181

179

*190

194

201

5,772

186

11,450

Sept.

201

186

186

179 T5B~

194

190

190

188

190

194

209

218

205

207

212

205

209

205

209

198

214

196

212

308

356

330" 423

272 

265

6,719

224

13,330

Mean 385 Ac-ft 279,500

Water year 1956-57: Max 3,370 Min 77 Mean 282 Ac-ft 204,200

Peak discharge (base. 3,300 cfs).--Jan. 20 (l a.m.) 5,430 of 

4,660 cfs (9.62 ft); Mar. 4 (11 p.m.) 3,550 cfs (8.50 ft).

ifs (10.20 ft); Feb. 24 (l p.m.)

Discharge measurement made on this day.

510529 O - 59 35
532 RUSSIAN RIVER BASIN

Russian River near Hopland, Calif.

Location. Lat 39°01 I 35", long 123°07'45", in Rancho de Sanel Grant, on right bank

0.2 mile downstream from McNab Creek, 4 miles north of Hopland, Mendocino County, and 

17 miles upstream from Sulphur Creek.

Drainage area. 362 sq mi.

Records available.--December 1939 to September 1957.

Gage. Water-stage recorder. Datum of gage is 497.43 ft above mean sea level, datum of 

1929. Prior to Sept. 9, 1943, wire-weight gage at same site and datum.

Average discharge.--17 years (1940-57), 697 cfs (504,600 acre-ft per year).

Extremes. Maximum discharge during year, 13,400 cfs Feb. 24 (gage height, 16.12 ft); 

minimum daily, 123 cfs Jan. 6.

1939-57: Maximum discharge, 45,000 cfs Dec. 22, 1955 (gage height, 27.00 ft), from 

rating curve extended above 34,000 cfs; minimum daily, 26 cfs Dec. 18, 1943, June 26, 

1949.

Flood in December 1937 reached a stage of 30.0 ft, from floodraarks.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Flow considerably affected by diversion into basin (see Remarks for East Fork Russian 

River near Calpella). Small diversions above station for irrigation. Records of 

chemical analyses for the water year 1957 are given in WSP 1523.

Revisions. WSP 1041: Drainage area.

Rating tables, water year 1956-57 (gage height, in feet, and

discharge, in cubic feet per second) 

(Backwater from debris Nov. 20 to Jan. 12)

Oct. 1 to May 18 May 19 to Sept. 30

5.2 95 5.3 146

5.5 205 5.5 213

6.0 440 6.O 440

7.0 945 7.0 945

8.0 1,640 8.0 1,640

11.0 5,150 11.0 5,150

15.0 11,300 15.0 11,300

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct..

201

197

193

189

185

197

193

210

205

210

214

218

223

228

232

*232

232

236 

236

241

241

236

241

246

232

241

254

241

236

702

760

7,902

255

15/670

Nov.

525

420

370

331

313

295

290

254

201

264

264

264

250

259

*259

254

259

259 

264

295

300

290

290

268

218

205

126

185

126

201

8,099

270

16,060

Dec.

201

210

193

144

201

169

201

144

201

210

210

185

162

154

151

140

137

137 

140

140

140

140

137

137

137

137

137

137

137

137

137

4,943

159

9,800

Jan.

134

134

134

130

126

123

T26

140

140

137

151

946

2,900

1,240

1,340

*725

535

430 

370

4,500

1,460

989

810

705

655

635

570

530

505

480

450

22,250

718

44,130

Feb.

435

465

455

440

430

420

420

420

425

425

420

420

420

425

425

420

400

395 

395

570

700

768

5,750

11,000

6,460

*4,000

3,130

2,500

42,733

1,526

84,760

Mar.

1,800

1 , 450

1,450

*2,300

5,500

1,490

g2,430

gl,860

gl,890

gl,540

gl,300

2,880

2,250

1,660

*2,610

2,380

1,970

1,600 

1,380

1,220

1,100

1,010

950

896

855

820

790

770

760

770

690

48,171

1,554

95 , 550

Apr.

640

575

545

520

510

500

490

475

460

455

510

545

560

820

*645

615

825

1,080 

800

735

695

645

600

605

590

580

565

555

545

535

18,220

607

36,140

May

530

640

560

535

520

515

505

565

610

560

535

525

520

520

510

500

505

1,760 

1,760

1,510

1,260

984

835

745

690

640

605

*575

550

535

525

22,129

714

43,890

June

510

500

490

475

455

420

390

375

360

355

345

336

318

295

291

286

278

269 

261

244

225

213

209

206

195

191

188

177

Tn

188

9,222

307

18,290

July

191

188

184

181

191

177

181

173

170

164

*158

164

173

181

181

177

173

167 

170

177

181

181

167

170

173

167

170

170

170

170

170

5,410

175

10,730

Aug.

167

170

173

177

188

173

170

170

167

158

164

173

170

167

170

170

170

167 

170

170

167

173

181

173

173

173

173

170

*170

175

175

5,307

171

10,530

Sept.

180

180

175

175

170

175

175

175

175

170

175

180

175

185

185

185

180

180 

180

180

180

180

185

180

' 190

252

750

450

380

350

6,652

222

13,190

Calendar year 1956: Max 19,900 Mln 126 Mean 883 Ac-ft 641,000

Water year 1956-57: Max 11,000 Min 123 Mean 551 Ac-ft 398,700

Peak discharge (base, 9,600 cfs).--Feb. 24 (7 p.m.) 15.400 efs (16.12 ft).____________________

* Discharge measurement made on this day.

g Computed from once-daily staff-gage readings.

Note. No gage-height record Feb. 28 to Mar. 4, Aug. 30 to Sept. 30; discharge estimated on basis 

of 1 discharge measurement and records for station near Cloverdale.
RUSSIAN RIVER BASIN 533

Russian River near Cloverdale, Calif.

Location.--Lat 38°52't>5", long 123°03'15", in SW£ sec. 14, T. 12 N. , R. 11 W. , on left 

bank at Lambert Ranch, 400 ft downstream from Commisky Creek and 5 miles northwest of 

Cloverdale.

Drainage area. 502 sq mi.

Records available. July 1951 to September 1957.

Gage. Water-stage recorder. Datum of gage is 373.44 ft above mean sea level (levels by 

Corps of Engineers).

Average discharge. 6 years, 1,026 cfs (742,800 acre-ft per year).

Extremes. Maximum discharge during year, 20,600 cfs Feb. 24 (gage height, 20.00 ft); 

minimum daily, 118 cfs Jan. 6, 7.

1951-57: Maximum discharge, 53,000 cfs Dec. 22, 1955 (gage height, 30.9 ft, from 

floodmarks), from rating curve extended above 21,000 ofs on basis of determination of 

peak flow at upstream and downstream stations; minimum daily, 98 cfs Nov. 10, 1954.

Remarks. Records good. Plow considerably affected by diversion into basin (see Remarks 

for East Pork Russian River near Calpella). Small diversions above station for 

irrigation.

Rating table, water year 1956-57 (gage height, In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used June 8 to Sept. 26)

4.5 

5.0 

6.0 

7.0 

8.0

11Z 

184 

390 

750 

1,320

9.0

10.0

12.0

15.0

19.0

2,080

2,980

5,420

10,300

18,300

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19L'O

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

207

206

200

197

197

202

2O 2

211

215

216

222

222

224

228

228

228

*228

226

226

230

230

230

236

242

238

246

256

248

250

529

674

7,694

248

15,260

Nov.

427

357

322

298

286

274

268

264

*206

250

252

250

246

246

248

248

248

248

246

246

246

244

242

234

197

189

138

166

125

162

7,373

246

14,620

Dec.

174

176

178

135

176

149

181

134

170

178

181

178

151

139

137

131

125

124

127

125

125

125

125

125

124

124

124

124

124

124

*123

4,436

143

8,800

Jan.

122

122

122

120

119

118

US

127

128

127

165

1,520

4,010

2,170

2,160

1,110

*723

517

433

5.270

2,020

1,210

895

687

6OO

559

469

421

392

366

346

27,266

880

54,080

Feb.

335

355

353

335

322

315

318

329

331

324

315

309

304

3OO

300

298

296

294

292

292

1,610

1,280

9,740

17.800

10,500

5,710

4,180

2,750

-

59,887

2,139

118,800

Mar.

2,060

*1,620

1,610

2,600

7.440

4,850

3,220

2,460

2,370

1,900

1,700

3,440

2,910

2,230

3,310

3,350

2,910

2,340

1,970

1,680

1,450

1,280

1,160

1,070

992

930

880

830

805

865

705

66,937

2,159

132,800

Apr.

669

592

545

506

482

460

436

421

405

405

451

538

562

1,210

805

723

*1,310

1.840

1,190

1,020

915

830

723

714

678

648

624

596

576

559

21,433

714

42,510

May

552

795

636

573

545

524

517

687

805

682

616

584

588

580

559

534

545

2,450

2,570

2,290

1,940

1,480

1,230

1,060

940

845

775

723

*669

632

604

28,530

920

56,590

June

573

552

528

500

478

424

378

348

329

329

315

300

288

270

270

266

248

240

236

218

215

213

209

207

197

195

191

188

186 

T93

9,084

303

18,020

July

200

197

195

189

197

188

189

186

*178

173

168

170

174

189

191

188

184

176

176

184

189

193

176

174

176

174

173

174

176

176

174

5,647

182

1 1 , 200

Aug.

173

176

176

184

191

186

176

178

174

168

171

178

178

173

176

176

178

176

178

176

173

176

189

184

178

186

186

*178

184

isq

5,553

179

11,010

Sept.

191

193

188

188

178

184

184

184

184

178

184

193

184

195

193

191

191

191

193

191

189

189

195

189

197

300

767

436

357

*T 0

OJ.O

6,895

230

13,680

Calendar year 1956: Max 23,500 Mln 123 Mean 1,098 Ac-ft 797,100

Water year 1956-57: Max 17.8OO Mln 118 Mean 687 Ac-ft 497,400

Peak discharge (base, 12,400 cfs).--Feb. 24 (4 p.m.) 20,600 cfs (2O.OO ft).

Discharge mea rcent made on this day.
534 RUSSIAN RIVER BASIN

Big Sulphur Creek near Cloverdale, Calif.

Location. Lat 38°49'25", long 122°59'05", in NW£ sec. 10, T. 11 N., R. 10 W., on right

bank 500 ft downstream from unnamed tributary, 1.9 miles upstream from mouth, and

3.1 miles northeast of Cloverdale.

Drainage area. 82.0 sq mi.

Records available. July to September 1957.

Gage. Water-stage recorder. Altitude of gage is 380 ft (from topographic map).

Extremes. Maximum discharge during period, 2,440 cfs Sept. 27 (gage height, 7.96 ft); 

minimum, 4.1 cfs Sept. 9, 23.

Flood of Dec. 22, 1955, reached a stage of 22.2 ft, from floodmarks (discharge, 

20,000 cfs on basis of slope-area determination of peak flow).

Remarks. Records good. No regulation or diversion.

Rating table, July 1 to Sept. 30, 1957 (gage height, In feet,

and discharge, in cubic feet per second)

3.7 50 5.0 385

4.0 93 6.0 900

4.5 225 7.0 1,630

3.0

3.1

3.2 

3.4

3.8 

6.4

10

22

Discharge, in cubic feet per second, July to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct. Nov. Dec.

Calendar year : Max

Jan. Feb.

Min

Mar. Apr.

------

May June July

28

27

26

24

22

22

22

22

22

21

*20

20

19

20

20

18

18

17

18

18

17

17

16

14

14

13

13

13

12

12

11

576

18.6

1,140

Aug.

11

10

9.7

9.4

10

11

11

10

9.7

9.4

9.4

8.6

7.9

7.5

7.5

7.9

7.5

7.1

7.1

6.8

6.8

6.4

G'A

6.4

7.1

7.5

 7.5

7.5

7.1 

7.1

254.7

8.22

505

Sept.

6.8

6.4

5.6

5.6

5.4

5.1

5.1

4.8

4.6

TJS

5.4

5.9

5.6

5.6

5.9

6.1

5.9

5.6

5.6

5.4

4.6

4.6

4.6

4.6

4.8

46

1,050

155

83

75

1,543.2

51.4

3,060

Mean Ac-ft

Water year : Max Min Mean Ac-ft

Discharge measurement made on this day.
RUSSIAN RIVER BASIN 535

Russian River near Healdsburg, Calif.

Location. Lat 38°36'48", long 122°50'07", in Sotoyome Grant, on left bank 2 miles east 

of Healdsburg, Sonoma County, and 3.5 miles upstream from Dry Creek.

Drainage area. 791 sq mi.

Records available. December 1939 to September 1957.

Gage . Water-stage recorder. Datum of gage is 76.84 ft above mean sea level, datum of 

T929 (levels by Corps of Engineers).

Average discharge. 17 years (1940-57), 1,374 cfs (994,700 acre-ft per year).

Extremes. Maximum discharge during year, 32,600 cfs Feb. 24 (gage height, 16.75 ft); 

minimum daily, 120 cfs Aug. 15.

1939-57: Maximum discharge, 67,000 cfs Feb. 28, 1940 (gage height, 30.0 ft); minimum daily, 38 cfs July 2, 1950.

Flood in December 1937 reached a stage of 30.8 ft, from floodmarks.

Remarks. Records good except those for periods of doubtful gage-height record or 

Indefinite stage-discharge relation, which are fair. Several small diversions for 

irrigation above station. Flow also affected by diversion into basin (see Remarks 

for East Fork Russian River near Calpella). Records of chemical analyses for the 

water year 1957 are given in WSP 1523.

Revisions (water years). WSP 981: 1942. WSP 1041: Drainage area.

Rating table, water year 1956-57, except period of Indefinite stage-discharge 

relation (gage height, In feet, and discharge, In cubic feet per second)

0.3 

.6 

1.0 

1.5 

2.0

220

300

430

620

870

3.0 

4.0 

6.0 

9.0 

15.0

1,580

2,520

4,960

10, 900

27,000

Discharge, In cubic feet-per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Ac-ft

Oct.

247

247

247

247

247

247

247

244

242

239

237

232

Z20

210

205

*198

200

210

220 

220

220

220

225

225

227

230

240

250 

260

621

1.050

8,354

269

16,570

Nov.

710

544

458

409

370

348

330

321

312

282

276

276

276

276

276

276

273

260

255

250

245

240

235

235

232

230

230

230 

225 "225

9,105

304

18,060

Dec.

220

210

205

205

200

*198

198

195

195

195

195

194

200

213

190

185

180

180

175 

170

170

170

170

170

170

165

165

160 

160

155

155

5,713

184

11,330

Jan.

155

155

150

150

150

150

145

150

150

155

170

874

5.480

3,690

3,680

2,030

1,270

*900

710 

4,560

3,640

1,870

1,320

1,050

846

745

670

588 

532

486

454

37,075

1,196

73,540

Feb.

426

409

412

395

374

357

364

462

451

412

384

364

348

336

327

318

312

306

303 

300

1,800

2,610

10,900

25.500

24,000

11 , 300

9,140

5,380

97,990

3,500

194,400

Mar.

3,870

3,020

2,570

*3,380

7,420

7,440

5,020

3,740

3,570

2,950

2,570

3,980

4,190

3,230

*3 , 900

5,010

4,200

3,630

2,960 

2,550

2,210

1,920

1,710

1,570

1,470

1,370

1,300

1,230 

1,170

1,210

1.120

95,480

3,080

189,400

Apr.

1,040

972

900

840

795

765

735

705

680

656

544

685

720

1,310

1,230

972

*1,390

3.150

2,090 

1,640

1,440

1,290

1,150

1,060

1,000

954

906

864 

822

795

32,100

1,070

63,670

May

780

906

990

846

785

750

735

760

1,230

1,100

997

906

864

882

882

840

785

3,600

4,550 

3,690

3,420

2,660

.2,120

1,760

1,540

1,370

1,250

1,120 

*1,020

1,000

984

45,122

1,456

89,500

June

954

900

852

800

755

710

656

624

596

560

520

500

480

450

430

420

410

400

380 

370

350

340

330

320

305

290

275

260 

255

255

14,747

492

29,250

July

255

2SO

250

250

245

240

230

220

210

205

200

180

165

190

190

185

*180

170

170 

175

180

190

190

185

180

170

170

165 

160 

155

155

6,060

195

12,020

Aug.

150

145

140

145

145

150

150

145

140

140

140

135

130

125

120

125

130

135

140 

135

135

130

125

125

160

160

*160

140 

140 

135

140

4,315

139

8,560

Sept.

155

145

145

145

140

140

140

135

T40

135

140

145

140

140

150

155

150

155

150 

150

150

155

150

150

150

170

750

1.400 

700 

600

7,270

242

14,420

Calendar year 1956: Max 44,000 Mln 130 Mean 1,769 Ac-ft 1,284,000

Water year 1956-57: Max 25,500 Mln 120 Mean 995 Ac-ft 720,700

Peak discharge (base, 19,000 cfs).--Feb. 24 (9 p.m.) 32,600 cfs (16.75 ft).

* Discharge measurement made on this day.

Hote. Doubtful gage-height record Oct. 12-29, Nov. 18 to Jan. llj stage-discharge relation 

Indefinite June 10 to Sept. 30 (discharge estimated on basis of 10 staff-gage readings, 2 discharge 

measurements, and records for station near Quernevllleji
536 RUSSIAN RIVER BASIN

Dry Creek near Cloverdale, Calif.

Location. --La t 38°44'59", long 123°05'28", In NEijNE^ sec. 5, T. 10 N. , R. 11 W. , on left 

bank 500 ft downstream from Smith Creek and 5 miles southwest of Cloverdale.

Drainage area. 87.8 sq mi.

Records available . November 1941 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 320 ft (from topographic map).

Average discharge. --15 years (1942-57), 139 cfs (100,600 acre-ft per year).

Extremes . --Maximum discharge during year, 5,800 cfs Feb. 24 (gage height, 9.92 ft); minimum, 0.6 cfs Oct. 3-5.

1941-57: Maximum discharge, 17,600 cfs Dec. 22, 1955 (gage height, 17.80 ft), from 

rating curve extended above 9,400 cfs on basis of slope-area determination of peak 

flow; minimum, 0.1 cfs several days in 1944, 1949, 1951-53.

Flood in December 1937 reached a stage of about 18 ft, from floodmarks .

Remarks . Records good. No regulation or diversion.

Revisions (water years). WSP 1041: Drainage area. WSP 1395: 1942(M), 1943, 1946(M), 

1951-54(M) .

Rating tables, wate year 1956-57 (gage height, in feet, and discharge 

In cubic feet per second)

Oct. 30 to Pet. 24 Feb. 24 to Sept. 30

2.67

2.7

2.8

2.9

3.0 

3.2 

3.4 

3.7

0.6 

1.0 

3.0

15

37

70

145

2.9

3.0

3.1 

3.3 

3.6 

4.0 

5.0 

6.0 

9.0

36

89

210

600

1,300

4,700

2.85

2.9

3.0

3.1 

3.3 

3.6 

4.0 

4.5 

5.0 

7.0

0.7

1.1

4.7

12

36

235

500

840

2,550

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.7

.7

.6

.6

.6

.7

.0

.0

.1

.1

.3

.3

.3

.3

.1

.1

* .1

.1

.1

.1

.1

.1

.5

.5

.5

2.0

3.3

3.0

2.6

~76 130

243.5

7.85

4^3

Nov.

27

2T

18

14

11

9.8

8.9

7.3

6.6

5.9

5.3

4.7

4.1

3.6

3.6

3.1 37T

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.6

3.1

197.8

6.59

392

Dec.

3.6

or

4.1

5.3

11

*12

8.9

7.3

6.6

5.9

5.9

5.9

5.9

5.9

5.3

5.3

5.3

5.3

5.3

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.7

176.3

5.69

350

Jan.

4.7

477

.7

.7

.7

.7

.7

8.1

8.9

6.6

75

624

715

366

301

148

*99

81

91

491

189

115

85

69

60

50

44

40

36

32

29

3,796.5

122

7,530

Feb.

28

29

27

24

22

21

27

40

29

25

24

22

21

20

19

19

18

18

16

22

620

427

2,920

4,210

*2,050

1,490

917

623

-

13,728

490

27,230

Mar.

452

»335

335

345

560

458

365

325

370

266

230

458

310

266

623

470

665

494

398

310

240

186

150

126

110

99

85

75

83

73

65

9,327

301

18,500

Apr.

52

44

36

28

23

23

22

20

19

16

16

18

37

260

73

71

*290

365

190

140

112

97

85

77

69

63

60

54

50

47

2,457

81.9

4,870

May

54

107

56

48

42

41

40

148

126

89

71

61

69

63

56

47

60

690

422

416

365

253

199

162

140

122

' 107

99

*92

82

70

4,397

142

8,720

June

52

38

33

32

30

28

25

22

20

18

18

16

16

14

14

12

12

12

12

11

9.8

9.8

9.8

8.9

8.9

8.9

8.1

8.1

8.1

8.1

523.5

17.4

1,040

July

8.9

8.1

7.3

7.3

7.3

6.6

5.9

5.9

5.3

5.3

5.3

5.3

5.9

6.6

6.6

7.3

*8.1

8.1

8.9

8.9

9.8

879

8.1

8.1

7.3

6.6

4.1

377

5.3

5.3

5.3

212.4

6.85

421

Aug.

4.1

771

4.1

3.6

3.6

3.1

2.6

2.6

2.6

2.6

2.6

2.6

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

1.8

1.8

1.5

1.1

1.2

1.8

1.2

*1.5

1.5

1.8

1.8

72.8

2.35

144

Sept.

1.8

1.5

1.3

1.3

1.3

1.2

1.0

1.0

1.0

1.0

.8

.9

1.0

1.1

1.1

.9

.8

.8

.7

77

.7

.7

.7

.7

.7

14

~36 197

21

16

308.7

10.3

612

Calendar year 1956: Max 4,790 Min 0.6 Mean 168 Ac-ft 121,800

Water year 1956-57: Max 4,210 Min 0.6 Mean 97.1 Ac-ft 70,290

Peak discharge (base, 3,300 cfs).--Feb. 24 (8 a.m.) 5,800 cfs (9.92 ft). 

* Discharge measurement made on this day.
RUSSIAN RIVER BASIN 537

Russian River near Guerneviile, Calif.

Location.--Lat 38°30'00", long 122°56'05", in NEv sec. 35, T. 8 N., R. 10 W., on left 

bank 0.6 mile downstream from Hobson Creek and 3.4 miles east of Guerneviile.

Drainage area. 1.342 sq mi.

Records available. December 1939 to September 1957. Prior to October 1954, published 

as "at Guerneviile."

Gage.--water-stage recorder. Altitude of gage is 70 ft (from topographic map). Prior 

to Oct. 1, 1954, wire-weight gage at bridge 5.3 miles downstream at different datum. 

Supplementary water-stage recorder 2.1 miles downstream used during periods of low 

flow 1948-54.

Average discharge. 17 years (1940-57), 2,156 cfs (1,561,000 acre-ft per year); median 

of yearly mean discharges, 1,900 cfs (1,380,000 acre-ft per year).

Extremes. Maximum discharge during year, 45,800 cfs Feb. 25 (gage height, 33.77 ft); 

minimum daily, 120 cfs Aug. 15, 16.

1939-57: Maximum discharge, 90,100 cfs Dec. 23, 1955 (gage height, 49.7 ft, from 

floodmarks); minimum daily, 61 cfs July 4, 1950.

Remarks. Records good. Many diversions above station for irrigation. Flow also 

affected by diversion into basin (see Remarks for East Fork Russian River near 

Calpella). Records of chemical analyses for the water year 1957 are given in WSP 1523.

Revisions. WSP 1395: Drainage area at former site.

Rating tables, water year 1956-57 (gage height, In feet, and discharge. In cubic 

feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

3.7

4.0 

5.0 

8.0

134

200

476

1,560

11.0

14.0

18.0

29.0

3,200

5,910

12,000

34,400

3.8 

4.2

5.0 

8.0 

11.0

120

220

480

1,770

3,770

14.0 6,520

18.0 12,600

25.0 25,500

33.0 44,000

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

229

210

200

195

188

186

190

195

193

195

200

207

210

210

*210

207

207

214

212 

212

214

217

217

222

224

234

242

253

258

399

1.070

7,620

246

15,110

Nov.

806 

605

503

437

392

361

341

324

316

289

284

286

284

279

273

276

273

276

271 

268

268

271

273

273

271

247

234

222

202

200

9,605

320

19,050

Dec.

190 

200

202

202

200

*200

207

202

200

190

202

207

210

200

190

186

181

174

169 

167

167

167

169

172

169

167

165

161

T56~ 154

156

5,682

183

11,270

Jan.

154 

150

148

150

152

150

144

148

152

154

167

876

6,860

5,380

4,840

2,890

1,760

*1,320

1,040 

4,630

5,540

2,530

1,770

1,410

1,180

1,030

924

823

739

674

617

48 , 502

1,565

96,200

Feb.

*578 

554

545

530

500

476

497

697

652

575

536

503

476

470

455

440

428

419

410 

404

2,290

4,470

15 , 200

33,700

42, 300

21,800

17,300

10,500

157,705

5,632

312,800

Mar.

*7,290 

5,620

4,540

5,180

8,460

10,500

7,580

5,770

5,420

4,670

3,910

4,860

6,060

4,800

5,400

7,140

6,500

5,890

4,760 

3,990

3,370

2,940

2,610

2,360

2,180

1,990

1,830

1,710

1,620

1 , 630

1,540

142,120

4,585

281,900

Apr.

*1,420 

1,310

1,210

1,150

1,090

1,040

1,000

964

924

900

872

T5&S

940

1,610

1,720

1,300

1,680

4,920

3,490 

2,550

2,160

1,860

1,660

1,500

1,380

1,280

1,200

1,150

1,100

1,050

45,318

1,511

89,890

May

1,020 

1,170

1,310

1,120

1,030

980

948

984

1,520

1,490

1,310

1,170

1,120

1,130

1,120

1,060

996

3,790

7.360 

5,630

5,740

4,310

3,390

2,810

2,410

2,090

1,800

1,600

1,460

*1,340

1,250

64,458

2,079

127,900

June

1,180 

1,110

1,060

1,000

960

912

864

788

760

724

664

543

606

582

568

550

536

508

434 

438

420

400

386

365

358

351

324

305

296

292_

18,284

609

36,270

July

289 

299

299

292

280

268

265

251

242

223

212

183

158

196

196

178

166

*173

173 

173

178

186

188

186

168

156

153

158

156

153

150

6,348

205

12,590

Aug.

146 

141

136

143

141

146

150

143

141

138

138

129

125

125

120

120

127

132

141 

134

132

127

122

125

163

153

*153

125

146

132 

136

4,230

136

8,390

Sept.

153 

138

146

146

141

138

138

127

138

132

138

146

138

141

150

153

150

150

148 

148

150

156

150

141

150

166

754

1.390

712 

571

7,199

240

14,280

Calendar year 1956: Max 60,600 Mln 144 Mean 2,843 Ac-ft 2,064,000

Water year 1956-57: Max 42,300 Mln 120 Mean 1,417 Ac-ft 1,026,000

Peak discharge (base, 23,000 cfs).--Feb. 25 (6 a.m.) 45,800 cfs (33.77 ft). 

* Discharge measurement made on this day.
538 GUALALA RIVER BASIN

South Pork Gualala River near Annapolis, Calif.

Location. Lat 38°42'10", long 123°25'00", in NE£ sec. 21, T. 10 N., R. 14 W., on right 

bank 1,000 ft downstream from Wheatfield Pork Gualala River and 4.8 miles west of 

Annapolis.

Drainage area. 161 sq mi.

Records available.--October 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 60 ft (from topographic map).

Average discharge. 7 years, 457 cfs (330,900 acre-ft per year).

Extremes. Maximum discharge during year, 8,760 cfs Feb. 23 (gage height, 10.53 ft); minimum, 3.7 cfs Oct. 1, 2.

1950-57: Maximum discharge, 55,000 cfs Dec. 22, 1955 (gage height, 24.57 ft), from 

rating curve extended above 13,000 cfs on basis of slope-area determination of peak 

flow; minimum, 0.4 cfs Sept. 13, 1951.

Remarks. Records good. No regulation or diversion.

Rating table, water year 1956-57 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used Apr. 26 to May 8, June 3 to Sept. 26)

2.0

2.1

Z.I 

3.0

1.0 

4.2 

9.5

75

132

3.5 

4.0 

4.5 

5.0 

6.0 

8.0 

10.0

266

470

750

1,120

2,050

4,580

7,800

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23 

24

25

26

27 

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

3.7

TT?

.2

.2

.2

.2

.2

.7

8.9

14

15

18

16

15

14

13

13

13 

13

14

14

14

16 

19

20

26

46 

34

29

T58~ 584

1,170.5

37.8

2,320

Nov.

59" 75

53

44

38

30

28

26

24

23

22

21

*19

17

17

16

16

16 

16

15

15

15

15 

15

15

13

12 

If

12

12

711

23.7

1,410

Dec.

12

11

TT

12

21

33

2S

19

17

16

16

16

16

15

15

15

14

14

13

13

13

13

13

12

12

12

12 

11

11

11

12

457

14.7

906

Jan.

12Tz~

*12

12

12

13

12

15

21

19

81

3,110

2,700

756

902

438

323

260 

240

5,150

752

433

327 

273

225

188

164 

150

136

126

118

14,952

482

29,660

Feb.

116

130

118

110

104

102

112

201

156

124

106

94

*88

79

70

64

61

59 

58

6T

2,630

1,510

6,250 

5,360

5,020

4,140

2,720 

1,460

_

29,085

1,039

57,690

Mar.

946

67B

1,280

1,640

2,680

1,760

1, 120

862

1,270

820

70S

1,570

678

757

1,320

1,090

1,910

*1,340 

976

736

586

52C

461 

456

475

475

442 

411

398

TT7J 4:OO

429

29,234

943

57,980

Apr.

402

351

311

280

260

240

219

204

194

181

168

161

164

767

255

222

605

1,040

 552

442

565

297

255

225

199

199

181 

175

161

15_2

9,257

309

18,560

May

147

502

*186

150

154

122

114

577

420

260

207

181

216

225

191

164

174

4,850 

2,590

1,820

1,610

1,140

897 

758

648

575

495 

442

595

559

519

20,257

660

40,550

June

276 '230"

216

191

181

171

152

145

128

120

106

98

*84

82

81

75

73

66 

63

61

58

58

56 

52

48

44

42 

40

40

37

3,092

103

6,150

July

46

44

40

32

34

50

27

24

26

23

22

22

22

23

25

22

21

19 

19

20

22

22

22 

*22

20

18

16 

16

15

15

14

741

25.9

1,470

Aug.

13

12

12

11

11

11

11

12

12

12

11

10

9.5

8.9

9.5

8.9

8.9

8.3 

7.

7.

7.

7.

7! 

7.

7.

7.

7. 

7.

7.

7.

7.2

290.1

9.36

575

Sept.

7.2

7.2

*6.7

6.7

6.7

6.2

6.2

6.2

5.7

5.7

5.2

5.2

6.2

6.2

6.2

6.2

6.2

6.7 

6.7

6.2

5.7

5.2

5.2 

4.7

4.2

52

1,610 

420

260

207

2,699.5

90.0

5,350

Calendar year 1956 : Max 12,300 Min 3.7 Mean 380 Ac-ft 275,600

Water year 1956-57: Max 6,230 Min 3.7 Mean 307 Ac-ft 222,400

Peak discharge (base, 10,000 cfs).-- No peak above base.

Discharge measurement made on this day.
NAVARRO RIVER BASIN 539

Navarre River near Navarro, Calif.

Location. Lat 39°10'15", long 123°39'55", in SEij sec. 7, T. 15 [J., R. 16 W., on left 

bank 2.7 miles downstream from North Pork, 5.4 miles' upstream from mouth, and 

6.6 miles west of Navarro.

Drainage area. 304 sq mi.

Records available. October 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 20 ft (from topographic map).

Average discharge. 7 years, 565 cfs (409,000 acre-ft per year).

Extremes. Maximum discharge during year, 14,200 cfs Feb. 24 (gage height, 23.44 ft); 

minimum, 9.2 cfs Oct. 1-3.

1950-57: Maximum discharge, 64,500 cfs Dec. 22, 1955 (gage height, 40.60 ft), from 

rating curve extended above 19,000 cfs on basis of slope-area determination of peak 

flow; minimum, 6.2 cfs Sept. 5-9, 1955.

Flood in December 1937 reached a stage of 38.2 ft, from floodmarks.

Remarks. Records good. No regulation or diversion. 

Revisions (water years). WSF 1445: 1954(M).

Rating tables, water year 1956-57 (gage height, in feet, and discharge, in 

cubic feet per second).

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

3.7

3.8 

4.0 

4.4 

5.0

6.0

11

6.0

8.0

12.0

16.0

21.0

442

1,200

3,500

6,500

11,400

3.6

3.7 

3.9

5.0

10

16

36

73

124

235

6.0

8.0

10.0

12.0

16.0

525

1,340

2,330

3,520

6,500

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-it

Oct.

9.2

57?

9.2

9.8

9.8

9.8

9.8

10

9.8

11

13

13

13

13

12

12

12

12

12 

12

12

12

13

15

18

22

28

37

33 

248

 455

1,094.6

35.3

2,170

Nov.

200

TZT

88

69

56

48

42

38

35

34

32

30

30

*28

28

26

26

26

26 

26

26

25

25

25

24

24

24

24

24 

24

1,254

41.8

2,490

Dec.

24

24

24

26

30

35

38

37

33

30

34

42

45

44

39

37

35

33

32 

30

30

28

28

28

26

26

26

26

26 

26

26

968

31.2

1,920

Jan.

26

25

*25

25

25

25

25

30

38

40

44

641

1,670

1,160

1,520

698

422

290

229 

2,150

1,1-20

635

439

347

292

253

209

180

156

136

119

12,974

419

25,730

Feb.

112

117

113

101

93

86

86

119

136

113

105

96

93

*88

83

80

75

72

69 

W

330

605

5,090

10,800

6,O60

3,240

2,580

1,840

32,452

1,159

64,370

Calendar year 1956: Max 17,1OO Min 8.6

Mar.

1,390

1,060

970

1,410

4,000

2,970

2,100

1,580

1,510

1,220

1,060

1,860

1,820

1,480

1,740

1,940

1,950

1,680

*1,340 

1,060

842

*693

581

498

444

405

360

324

327 

369

518

39,501

1,268

77,950

Apr.

291

262

242

222

208

197

188

177

166

157

155

151

155

565

360

275

417

906 620" 

507

429

366

518

280

252

250

212

199

186

175

8,862

295

17,580

May

168

280

*252

186

168

153

146

166

411

345

270

255

215

215

197

177

177

1,290

1,700 

1,480

1,540

1,020

810

648

525

444

384

330

288

232

14,490

467

28,740

June

212

TW

184

173

159

151

142

136

126

120

115

107

*102

96

95

90

86

79

79

67

70

70

66

65

60

57

54

55

55 

51

5,109

104

6,170

July

51

BT

48

46

45

42

40

38

36

54

55

52

51

32

31

30

50

29

27 

27

28

28

27

*27

26

25

24

25

22 

21

20

1,002

52.3

1,990

Aug.

19

19

18

17

17

17

17

17

16

16

16

16

16

17

16

16

16

16

15 

15

15

15

14

14

14

14

14

14

14 

14

14

488

15.7

968

Sepb.

14

13

*15

15

15

13

13

12

15

16

14

15

14

14

15

16

15

15

15 

15

15

15

15

14

14

19

164

225

ToT 

111

978

32.7

1,940

Mean 570 Ac-fb 415,900

Waber year 1956-57: Max 1O,8OO Min 9.2 Mean 32O Ac-ft 232, OoO

Peak discharge (base, 7,OOO cfs). --Feb. 24 (3 p.m.) 14.2OO cfs (23.44 ft).

* Discharge measurement made on this day.
540 NOYO RIVER BASIN

Noyo River near Port Bragg, Calif.

Location.--Lat 39°26', long 123°44', in SW£ sec. 10, T. 18 N., R. 17 W., on right bank 

0.7 mile downstream from South Pork and 3.5 miles east of Port Bragg.

Drainage area.--105 sq mi.

Records available.--August 1951 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 50 ft (from topographic map).

Average discharge. 6 years, 247 cfs (178,800 acre-ft per year).

Extremes.--Maximum discharge during year, 3,710 cfs Mar. 5 (gage height, 13.24 ft); minimum, 3.8 cfs Oct. 3.

1951-57: Maximum discharge, 22,000 cfs Dec. 22, 1955 (gage height, 25.64 ft), from 

rating curve extended above 3,600 cfs on basis of slope-conveyance study; minimum, 

3.5 cfs Sept. 14, 22-24, 1951.

Remarks.--Records good. No regulation or diversion.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

in cubic feet per second)

Oct. 1 to Mar. 5 Mar. 5 to Sept. 30

1.6 3.4

1.8 11

2.0 23

2.5 63

3.0 122

4.0 284

6.0 760

10.0 2,010

1.4

1.5 

1.7 

2.0 

2.5

4.3

8.0

18

37

81

3.0 

4.0 

5.0 

8.0 

12.0

145

342

620

1,590

3,150

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

4.8

4.5

4.1

T^

4.1

4.8

4.5

4.5

4.8

5.9

8.3

8.3

7.9

7.4

6.6

6.3

6.3

6.3

6.6

8.3

11

11

15

17

16

22

37

28

28

T3T

628.8

20.3

1,250

Nov.

85

62

48

38

32

28

25

23

22

20

19

18

18

16

*14

14

14

14

14

14

14

13

13

13

13

13

13

13

12

12

667

22.2

1,320

Dec.

12

1?

12

14

17

23

24

20

17

17

24

35

36

3T

28

24

22

20

18

17

16

16

14

14

13

13

13

13

12

12

12

571

18.4

1,130

Jan.

12

1?

12

*12

12

12

12

15

19

17

26

124

176

185

320

188

126

92

90

770

460

260

176

132

106

91

76

67

59

52

47

3,759

121

7,460

Feb.

48

61

57

54

50

48

47

57

65

64

62

58

55

*51

48

43

40

39

37

3_6

51

72

717

1,890

1,680

1,490

1,290

739

-

8,949

320

17,750

Mar.

479

331

324

800

3,150

2,600

1,660

1,050

911

767

695

1,510

1,360

944

806

698

596

476

*400

338

283

238

203

179

160

150

133

122

136

162

156

21,817

704

43,270

Apr.

150

138

129

117

108

101

95

87

80

75

72

T8

80

291

232

220

289

400

54T

296

240

199

168

145

126

113

102

93

86

80

4,734

158

9,390

May

78

*119

96

83

75

69

66

70

70

78

92

85

82

80

72

66

80

1,450

1,430

1,100

779

545

405

313

254

212

184

162

144

130

116

8,585

277

17,030

June

107 -97

90

85

79

76

72

69

65

62

58

56

53

*51

49

47

45

43

41

40

38

37

36

34

33

31

30

30

29

28

1,611

53.7

3,200

July

27

27

27

25

24

24

23

22

22

21

21

21

20

21

21

20

19

18

17

17

17

17

16

16

*15

15

15

14

14

13

13

602

19.4

1,190

Aug.

13

12

12

12

12

12

11

11

11

11

11

11

10

9.4

9.4

9.4

9.4

8.9

9.4

8.9

8.9

8.5

8.5

8.5

8.0

.6

~.3

.3

.3

.3

300.3

9.69

596

Sept.

7.3

7.3

6.9

*6.5

6.5

6.5

6.5

6.9

6.9

6.9

6.9

6.9

7.3

7.3

7.6

7.6

7.6

7.6

7.3

6.9

6.9

6.5

6.2

6.2

5.8

12

53

43

25

29

334.8

11.2

664

Calendar year 1956: Max 7,270 Min 3.8 Mean 217 Ac-ft 157,700

Water year 1956-57: Max 3,150 Min 4.1 Mean 144 Ac-ft 104,200

Peak discharge (base, 2,400 cfs).--Mar. 5 (5 a.m.) 3,710 cfs (13.24 ft). 

* Discharge measurement made on this day.
MATTOLE RIVER BASIN 541

Mattole River near Petrolia, Calif.

Location. Lat 40°18'40", long 124°16'10", in NW£ sec. 11, T. 2 S. , R. 2 W., on right 

bank 0.2 mile down-stream from Clear Creek, 1.2 miles southeast of Petrolia, and 

1.3 miles upstream from North Fork.

Drainage area.--242 sq mi.

Records available . November 1911 to December 1913, October 1950 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 40 ft (from topographic map). Novemoer 1911 to December 1913, staff or chain gages at several sites upstream within 

0.7 mile of present site at various datums. Dec. 11, 1950, to July 14, 1955, waterstage recorder at site 0.7 mile upstream at datum 7.48 ft higher.

Average discharge. 8 years (1912-13, 1950-57), 1,378 cfs (997,600 acre-ft per year).

Extremes.--Maximum discharge during year, 22,300 cfs Feb. 24 (gage height, 15.2 ft, from 

floodmarks); minimum, 22 cfs Oct. 4.

1911-13, 1950-57: Maximum discharge, 90,400 cfs Dec. 22, 1955 (gage height, 

29.60 ft), from rating curve extended above 24,000 cfs on basis of slope-area determination of peak flow; minimum observed, 20 cfs Sept. 1, 2, 15-30, Oct. 27-31, 1913.

Remarks. Records fair. No regulation or diversion. 

Revisions (water years).--WSP 1285: 1912-13.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

30

28

23

*23

24

24

24

24

25

52

204

155

93

56

30

28

27

25

24

24

24

24

38

45

39

506

327

93

109

5,000 

1,560

8,708

251

17,270

Nov.

904

758

595

478

399

328

285

*250

231

213

200

187

179

159

152

148

148

144

141

134

127

124

120

117

117

117

114

111

108

105

7,193

240

14,270

Dec.

102

102

99

111

144

*183

167

141

124

138

318

447

*510

405

323

275

236

204

195

179

171

159

152

141

134

130

127

124

117

111 

108

5,877

190

11,660

Jan.

Ill

*102

99

99

96

93

93

127

141

120

400

,060

,900

,710

* ,580

,470

,650

,210

,220

,320

,980

,110

,670

,400

1,200

1,020

880

786

709

647 

614

38,617

1,246

76,600

Feb.

654

880

730

681

*641

614

634

1,000

1,020

880

779

688

654

602

550

504

465

441

411

447

600

1,400

8,000

18,000

15,000

12 , OOO

9,000

6,000

-

.......

83,275

2,974

165,200

Mar.

*3,500

2,480

2,300

3 , 2 10

5,850

6,740

5,170

3 , 980

4,300

3,510

4,480

9,710

6 , 110

4,540

6,810

5,970

5,990

4,570

3,660

2 , 850

*2,110

1,670

1,380

1,200

1,100

992

896

816

1,480

1,560 

1,830

110,764

3,573

219,700

Apr.

1,570

1,320

1,180

*1,060

960

888

800

744

688

640

608

654

709

2,470

1,310

1,160

2,100

2,020

1,660

1,430

1,230

1,090

976

880

808

737

688

640

602

569

32,191

1,073

63,850

May

699

»2,230

1,560

1,210

1,030

928

848

779

737

674

628

582

688

*793

702

634

1,700

10,800

4,830

3,310

2,590

2,070

1,730

1,490

1,280

1,120

1,020

928

848

779 

*723

49,940

1,611

99,050

June

681

640

602

576

536

510

478

459

429

405

387

369

351

340

323

312

296

290

285

270

260

250

240

231

222

208

200

191

191

187

10,719

357

21,260

July

179

175

171

159

159

148

144

138

130

127

127

124

138

222

T95

148

124

120

117

114

111

108

105

99

99

99

93

93

90

87 

*85

4,028

130

7,990

Aug.

85

79

79

79

79

79

79

76

74

74

71

71

66

63

63

63

61

61

59

54

56

54

54

52

54

54

52

50

52

50 

50

1,993

64.3

3,950

Sept.

50

50

48

*43

43

43

41

39

39

38

38

38

39

41

41

41

41

41

39

38

36

35

33

31

31

525

1,550

504

296

222

4,094

136

8,120

Calendar year 1956: Max 19,600 Mln 23 Mean 977 Ac-ft 709,100

Water year 1956-57: Max 18,000 Mln 23 Mean 979 Ac-ft 708,900

Peak discharge (base, 10,000 cfs). Feb. 24 (time unknown) 22,300 cfs (15.2 ft); Mar. 12 (6 a.m.)

11,900 cfs (11.30 ft); May 18 (6 a.m.) 14,600 cfs (12.85 ft).

* Discharge measurement made on this day.

Note. No gage-height record Feb. 21 to Mar. 1; discharge estimated

urement and records for South Fork Eel River near Miranda.

basis of 1 discharge meas-
542 MATTOLE RIVER BASIN

North Fork Mattole River at Petrolia, Calif.

Location.--Lat 40°19'35", long 124°17'35", in NE^ see. 4, T. 2 3., R. 2 W., on left bank 

0.5 mile west of Petrolia and 0.7 mile upstream from mouth.

Drainage area.--37.6 sq mi.

Records available. June 1951 to September 1957 (discontinued).

Gage.--Water-stage recorder. Altitude of gage is 50 ft (from topographic map). Prior to 

Oct. 6, 1953, at site 200 ft downstream at same datum.

Average discharge.--6 years, 177 cfs (128,100 acre-ft per year).

Extremes.--Maximum discharge during year, 2,650 cfs Feb. 23, from rating curve extended 

above 630 cfs by logarithmic plotting; maximum gage height, 8.85 ft Jan. 19; minimum 

discharge, 3.0 cfs Oct. 6.

1951-57: Maximum discharge, 9,600 cfs Dec. 21, 1955 (gage height, 10.60 ft), from 

rating curve extended above 1,300 cfs by logarithmic plotting; minimum, 2.0 cfs 

Sept. 4, 1955.

Remarks. Records poor. Small diversions for irrigation above station. 

Revisions. WSP 1345: Drainage area.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26 

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

3.5

378

4.0

*3.8

4.7

5.0

5.8

6.2

8.6

22

28

15

13

12

11

10

9

9

10 

11

12

14

60

49

30

*416 ~ST

26

213

408 

154

1,643.4

53.0

3,260

Nov.

-68 115

50

43

39

37

35

*33

31

29

28

26

25

24

23

22

21

21

20

20

19

19

18

18

18

18 

17

17

16

TS

886

29.5

1,760

Dec.

16

15

IF

17

35

*33

29

27

26

49

157

158

*239 ~99

68

52

43

38

34

32

30

28

27

26

25

25 

24

23

23

22 

21

1,456

47.0

2,890

Jan.

20

*20

20

20

19

18

20

26

22

20

85

131

341

959

*742

298

207

161

514 

658

40O

250

187

187

183

147 

125

108

105

105 

103

6,201

200

12,300

Feb'.

172

195

147

110

*108

108

128

187

147

122

110

110

110

108

105

105

1O3

103

98 

100

113

110

980

970

735

1,580 

1,250

700

8,914

318

17,680

Mar.

*385

287

412

791

998

958

460

320

372

225

7O8

468

282

309

468

408

516

346

304 

287

*265

270

230

211

211

187 

168

158

263

*191 

312

11,770

380

23,350

Apr.

250

220

195

175

158

147

134

119

110

105

100

13T

199

299

211

195

332

27T

245 

215

191

172

158

147

134

125 

122

122

122

119

5,231

174

10,380

May

179

*259

168 131'

116

108

103

100

98

93

88

84

103

*84

72

67

4575

1,120

1,190 

850

630

452

366

292

235

183 

158

131

116

103

*93

8,222

265

16,310

June

82

77

70

64

61

57

54

50

48

44

42

41

40

38

37

36

34

33

33

32

31

30

30

29

28

27 

27

27

27

?JL

1,255

41.8

2,490

July

25

25

25

24

24

24

24

24

23

24

24

23

21

26

19

19

18

18

18 

18

18

17

17

16

16

16 

15

14

14

13 

*12_

614

19.8

1,220

Aug.

12

12

13

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11 

10

10

9.S

9.6

9.6

9.6

9.6 

9.2

9.2

9.2

8.9 

8.9

333.4

10.8

661

Sept.

8.9

8.9

8.6

*8.2

7.8

7.8

8.2

8.

8.

8.

8.

8.

8.

8.

8.

8.

8.

8.

8. 

8.

7.8

7.8

7.8

7.8

8.2

59

67

29

25

24

408.8

13.6

811

Calendar year 1956: Max 3,650 Mln 3.3 Mean 150 Ac-ft 108,800

Water year 1956-57; Max 1,580 Mln 3.5 Mean 129 Ac-ft 93,110

Peak discharge (base, 1,7OO cfs). Oct. 26 (5 a.m.) 1,850 cfs (7.45 ft); Jan. 19 (10 p.m.) 2,510 cfs 

(8.85 ft); Feb. 23 (10:30 p.m.) 2,650 cfs (8.70 ft); Feb. 26 (6:30 a.m.) 2,040 cfs (8.67 ft); 

May 17 (10:30 p.m.) 2,090 cfs (8.69 ft).

* Discharge measurement made on this day.

Note.--No gage-height record Oct. 15-25, Nov. 1-7, Nov. 15 to Dec. 5, Dec. 18 to Jan. 1, July 14 

to Aug. 16; discharge estimated on basis of 1 discharge measurement, weather records, trend of 

record, records for Mattole River at Petrolia, and Mad River at Arcata.
EEL RIVER BASIN 543

Lake Pillsbury near Potter Valley, Calif.

Location. Lat 39°24'30", long 122°57'30", on line between sees. 14 and 23, T. 18 N. ,

 R. 10 W., at Scott Dam near right bank of Eel River, 0.3 mile downstream from Rice 

Fork and 10.2 miles northeast of town of Potter Valley.

Drainage area. 288 sq mi.

Records available . October 1922 to September 1928 (daily gage heights only; also summary

 of yearly contents in WSP 881), October 1928 to September 1957. Prior to October 1953, 

published as "at Hullville."

Gage. Water-stage recorder. Datum of gage is about 82 ft below mean sea level (riverprofile survey). Prior to Jan. 26, 1950, staff gage at same site and datum.

Extremes. Maximum contents during year, 93,700 acre-ft on many days April to June (gage

 heigh't, 1,910.0 ft); minimum observed, 16,500 acre-ft Jan. 10 (gage height, 1,860.3 ft).

1922-57: Maximum contents, 95,600 acre-ft May 13, 16, 1925 (gage height, 

1,910.8 ft); minimum, 10 acre-ft Dec. 9, 10, 1931 (gage height, 1,822.5 ft).

Remarks. Reservoir is formed by concrete overflow-type dam; storage began in December

 T9"2T. Capacity, 93,700 acre-ft between gage heights 1,822.4 (sill of outlet gate) 

and 1,910.0 ft (top of spillway gates). Spillway elevation, 1,818 ft; top of spillway gates, 1,828 ft above mean sea level. Water is released down Eel River to Van 

Arsdale Reservoir, from which it is diverted through tunnel to Potter Valley powerhouse; part is then used for irrigation and remainder flows into East Fork Russian 

River. Records show contents at 12 p.m. available for release.

Co operation. Re cord of contents furnished by Pacific Gas & Electric Co. in connection 

with a Federal Power Commission project.

Capacity table, water year 1956-57 (elevation, in feet, and 

usable contents, in acre-feet)

1,860.0

1,861.0

1,870.0

1,880.0

16,300

17,100

26,000

38,200

1,890.0

1,900.0

1,910.0

53,600

72,000

93,700

Usable contents, in acre-feet, at 12 p.m., water year October 1956 to Septembe

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

(t)

(*)

Oct.

-

-

41,300

-

-

-

-

-

-

37 , 600

-

-

-

35,900

-

-

-

-

-

-

-

-

-

31,400

-

-

-

-

30,700

1,874.1

-12,900

Nov.

30,800

-

.

-

30,500

_

30, 500

29,700

-

.

-

-

27,500

-

-

-

-

-

-

-

-

23,600

-

23,600

23,000

23,000

22,800

-

21,600

l,865.ff

-9,100

Dec.

_

21,600

21,600

21,600

21,200

21,200

20,900

_

-

-

19,800

-

-

-

-

.

19,800

-

-

-

.

-

-

-

-

_

-

18,200

-

.

17,600

1,861.5

-4,000

Jan.

_

-

_

17,300

-

.

-

_

_

16,500

_

-

-

23,600

-

_

-

27,100

-

-

.

34,400

-

-

35, 100

.

-

-

-

_

35,400

1,877.9

1-17,800

Feb.

35,400

-

_

-

-

-

-

-

35,500

-

.

-

-

-

-

37,000

-

-

-

-

_

-

-

80,500

77,200

77,200

75,700

74,700

-

1,901.3

+39,300

Mar.

74,700

73,900

73,700

74,300

75,300

75,100

74,500

74,100

74,100

73,700

73,700

74,900

74, 900

75,500

77,400

77,600

77,400

77,200

77,600

78,200

79,300

80, 100

81,200

81,800

82,700

83,300

84,200

84, 900

86,000

86,900

87,800

1,907.4

+13,100

Apr.

88, 700

89,300

90, 000

90,500

91,600

92,100

92,600

93,300

93,300

93,700

93,500

93,500

93 , 500

93,500

93 , 000

93 , 500

93 , 500

93 , 500

93,500

93 , 300

92 , 800

92,800

93,000

93,300

93,700

93,700

93,700

93,700

93,700

93,700

1,910.0

+5,900

May

93.700

93 , 500

93 , 300

93,300

93 , 300

93,300

93,500

93,500

93,300

93,300

93,300

93,500

93,500

93,500

93,500

93,500

93,500

93,300

92.300

92,600

92,800

93,000

93 , 500

93,700

93', 700

93,700

93 , 500

93 , 700

93,700

93,700

93,700

1,910.0

0

June

93,500

93,300

93,300

93,500

93,300

93,500

93,500

93.700

93,700

93,700

93,700

93,700

93,700

93,700

93,500

93 , 500

93,500

93,300

93,000

93,000

92,800

92 , 600

92,300

92,300

91 , 900

91 , 600

91,600

91,200

90,700

90.500

1,908.6

-3,200

July

90,000

90, 000

89,600

89,300

88,900

88,700

88,200

87 , 800

87,500

87,100

86, 600

86,400

86,000

85 , 500

85,300

84,900

84,400

84,200

83,800

83,300

83 , 100

82,700

82,200

81 , 800

81,400

81,200

80,700

80,300

79,700

79,300

78. 800

1,903.3

-11,700

r 1957

Aug.

78,600

78,200

77,800

77,400

76,900

76,500

75,900

75,500

75,100

74,700

74,300

73,700

73,300

72,900

72,400

71,800

71,600

71,100

70,700

70,300

70,100

-

-

-

-

.

-

-

-

65, 900

a65,500

_

-13,300

Sept.

_

-

_

-

-

63,200

-

_

-

-

.

-

59,700

-

-

_

-

-

-

-

_

-

55,300

55,000

-

_

54,300

-

-

53,600

1,890.0

-11,900

"alendar year 1956.................... t -56,300

Water year 1956-57.................... * +10,000

t Elevation, in feet, at end of month.

* Change in contents, in acre-feet.

a No gage-height record; contents interpolated.
544 EEL RIVER BASIN

Eel River below Scott Dam, near Potter Valley, Calif.

Location. Lat 39°24'30", long 122°58'15", In SEi sec. 15, T. 18 N., R. 10 W., on left 

bank"0.4 mile upstream from Soda Creek, 0.7 mile downstream from Scott Dam, and 

9.7 miles northeast of town of Potter Valley.

Drainage area. 290 sq mi.

Records available. November 1922 to September 1957. Prior to October 1929, published as 

South Eel River at Hullville, and October 1929 to September 1953 as "at Hullville."

Gage.--Water-stage recorder. Altitude of gage is 1,740 ft (from topographic map). Prior 

to Dec. 15, 1930, at datum 3.00 ft-higher.

Average discharge.--34 years (1923-57), 504 cfs (364,900 acre-ft per year).

Extremes. Maximum discharge during year, 12,200 cfs Feb. 25 (gage height, 13.90 ft), 

from rating curve extended above 8,100 cfs on basis of computed flow over Scott Dam; 

minimum daily, 71 cfs Apr. 1,2.

1922-57: Maximum discharge, 41,100 cfs Dec. 11, 1937 (gage height, 22.9 ft, from 

floodmarks), from rating curve extended above 2,900 cfs on basis of computed flow over 

Scott Dam; minimum daily, 0.1 cfs Sept. 8, 1924.

Remarks. Records good. Plow regulated by Lake Pillsbury (see preceding page.) No 

diversion above station.

Cooperation. Water-stage-recorder graph and seven discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Revisions (water years). WSP 1395: Drainage area. WSP 1445: 1938(M).

Rating table, water year 1956-57 (gage height, In feet, and 

discharge. In clbuc feet per second)

2.9 

3.5 

4.0 

5.0

67

160

254

525

6.0

8.0

10.0

13.0

990

2,740

5,150

10,300

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18 

19

20

21

22

25

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

248

246

246

246

244

244

242

242

242

242

23 8

234

234

234 

236

238

238

236 

236

234

234

234

234

232

232

232

232

230

23?

236 

236

7,3'64

238

14,610

Nov.

*234

234

234

234

232

232

222

134

232

232

230

230

230

234 

234

234

234

234 

232

230

230

230

187

150

130

123- 82

91

152

152

6,069

202

12,040

Dec.

152

T59

101

132

101

*126

95

148

148

146

114

83.

83

83 

83

83

88

96 

96

96

96

96

96

96

96

96

96

91

86

86

86

3,204

103

6,360

Jan.

86

86

86

87

88

88

88

88

87

87

91

100

102

104 

104

104

104

104 

104

104

104

TTO" 116

*110

108

108

108

108

108

rtO 108

3,088

99.6

6,120

Feb.

158" 108

108

108

108

108

108

108

108

108

108

108

108

108 

108

110

110

110 

110

112

113

116

143

3,060

*8,950

5,720

4,490

2,800

-

27,564

984

54,670

Mar.

,940

,480

,220

,360

,000

.140

,450

,900

,670

,380

,190

,140

,620

,080 

,300

,780

,740

,390 

918

614

362

233

198

200

200

201

209

174

94

74

7T

35,331

1,140

70,080

Apr.

71

71

72

79

83

77

74

94

105

202

339

339

344

1,540 

866

445

769

815 

761

756

752

497

274

242

274

312

336

341

339

336

11,405

380

22,620

May

336

841

544

357

357

300

276 4"5B~

632

457

365

368

368

368 

368

368

361

4.650 

3,210

1,960

1,580

1,280

930

761

761

761

*554

397

472

522

466

25,435

820

50, 450

June

418

415

312

250

216

189

178

176

180

182

183

182

178

180 

180

176

174

183 

191

191

191

191

191

200

209

209

209

209

209

209

6,361

212

12,620

July

*210

205

201

200

200

200

203

'225' 228

218

212

212

212

212 

210

210

212

216 

216

216

214

214

214

214

214

216

218

218

216

216

216

6,591

213

13,070

Aug.

218

218

218

218

218

218

220

222

224

226

226

226

224

224 

222

222

222

220 

220

220

222

226

~?ZS 228

226

226

226

226

*228

228

226

6,916

223

13,720

Sept.

226

226

226

226

226

228

228

228

226

226

226

226

226

226 

226

226

224

224 

222

222

222

222

228

281

527

327

273

230

228

226

7,078

236

14,040

Calendar year 1956 : Max 19,200 Mln 82 Mean 862 Ac-ft 626,000

Water year 1956-57 : Max 8,950 Mln 71 Mean 401 Ac-ft 290,400

Discharge measurement made on this day.
EEL RIVER BASIN 545

Potter Valley powerhouse tailrace near Potter Valley, Calif.

Location.~Lat 39°21'35", long 123°07'35", in NW£ sec. 6, T. 17 N., R. 11 W., on right

bank 100 ft downstream from powerhouse of Pacific Gas & Electric Co. and 3 miles northwest of town of Potter Valley.

Records available. October 1922 to September 1957.

Gage. Water-stage recorder and concrete Parshall flume. Altitude of gage is 1,000 ft 

(from topographic map). Prior to Apr. 13, 1950, water-stage recorder at site 50 ft 

upstream at different datum.

Average discharge. 35 years, 203 cfs (147,000 acre-ft per year).

Extremes.--1922-57: Maximum daily discharge, 348 cfs Apr. 24, 1953; no flow at times in 

several years.

Remarks. Records excellent. Water is diverted from Eel River above Van Arsdale Dam. 

After passing through powerhouse, part of it is used for irrigation in Potter Valley 

and remainder flows into East Fork Russian River. Water for irrigation diverted from 

tailrace is included in figures of discharge. Records of chemical analyses for the 

water year 1957 are given in WSP 1523.

Cooperation. Water-stage-recorder graph and six discharge measurements furnished by 

Pacific Gas & Electric Co., in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

242

243

240

237

233

226

225

227

227

227

227

224

224

223

223

222

223

225

225

225

223

241

231

222

220

237

226

225

239

'255 297 

7,218

233

14,320

Nov.

256 *^3T

235

237

232

229

224

128

223

222

220

215

215

215

212

214

216

216

218

217

215

211

206

147

147

48

155

60

153

151

5,869

196

11,640

Dec.

151

145

75

14?

90

*150

81

147

148

147

137

99

98

97

88

86

88

93

93

93

93

93

93

93

93

93

94

96

93

93 

92

3,284

106

6,510

Jan.

95

95

91

91

89

90

90

90

90

90

106

247

307

296

295

227

162

152

149

303

276

237

186

173

*172

151

139

142

139

133 

132

5,035

162

9,990

Feb.

134

142

137

134

133

134

130

14T

145

139

138

135

133

138

141

141

141

141

133

137

166

201

302

190

150

302

300

299

-

4,658

166

9,240

Mar.

300

303

306

3oT

305

300

299

303

306

305

305

305

303

303

303

303

303

305

305

305

305

305

305

306

305

303

303

291

224

190

185

9,095

293

18,040

Apr.

169

153

145

150

148

144

140

135

1ST

174

303

29T

298

299

298

296

295

295

298

299

299

299

299

299

299

299

299

300

299

303

7,484

249

May

302

'539" 298

299

300

300

302

303

303

303

303

303

303

303

303

303

302

303

300

298

298

300

300

300

299

298

*298

298

299

300

299

9,319

301

14, 840 j 18,480

June

302 330"

298

298

270

231

216

202

192

201

201

201

203

209

197

191

T9T

193

192

195

196

195

196

196

196

207

208

209

209

209

6,507

217

12,910

July

208

*212

198

207

202

204

¥10" 191

213

216

224

225

2TT

214

214

216

218

220

218

215

215

214

216

218

215

219

218

218

214

215

£16

6,620

214

13,130

Aug.

215

211

21?

215

212

218

211

216

215

222

224

217

219

219

221

219

221

220

219

221

221

222

221

218

218

218

219

218

217

*216

215

6,755

218

13,400

Sept.

216

215

214

215

214

212

209

209

356" 208

209

209

209

209

210

209

211

212

213

215

217

217

216

248

323

317

314

306

240

243

6,867

229

13,620

Calendar year 1956 : Max 338 Mln 1.5 Mean 250 Ac-ft 181,400

Water year 1956-57 : Max 323 Mln 48 Mean 216 Ac-ft 156,100

* Discharge measurement made on this day.
546 EEL RIVER BASIN

Eel River at Van Arsdale Dam, near Potter Valley, Calif.

Location. Lat 39°23'25", long 123"06'55", In NE^ sec. 30, T. 18 N., R. 11 W., on left 

bank 500 ft downstream from Van Arsdale Dam and 5 miles north of town of Potter Valley.

Drainage area. 347 sq ml.

Records available. November 1909 to September 1922 (combined monthly discharge only, of 

Eel River at this station and Snow Mountain Water & Power Co.'s tallrace near Potter 

Valley), October 1922 to September 1957. Prior to October 1929, published as South 

Eel River at Van Arsdale Dam, near Potter Valley.

Gage. Water-stage recorder. Altitude of gage Is 1,400 ft (from topographic map).

Nov. 18, 1909, to Mar. 3, 1927, recorder In reservoir 800 ft upstream from Van Arsdale 

Dam, at different datum. Oct. 1, 1927, to Feb. 28, 1937, staff gage at present site 

and datum.

Average discharge . 34 years (1922-26, 1927-57), 579 cfs (419,200 acre-ft per year), combined flow or Eel River at Van Arsdale Dam and Potter Valley powerhouse tallrace.

Extremes. Maximum discharge during year, 12,600 cfs Feb. 25 (gage height, 16.35 ft), 

minimum dally, 1.7 cfs Oct. 27.

1909-57: Maximum discharge, 48,600 cfs Dec. 22, 1955 (gage height, 31.4 ft, from 

floodmarks), from rating curve extended above 11,000 cfs on basis of computed flow over 

Van Arsdale Dam; no flow Nov. 1, 1945, Sept. 13, 14, 1953.

Remarks. Records good. Flow regulated by Lake Pillsbury (see p. 543). Flow is diverted 

from Van Arsdale Reservoir through tunnel to Potter Valley powerhouse (see preceding 

page), after which part Is used for Irrigation and remainder flows into East Pork 

Russian River. Records given herein show only flow passing dam down Eel River.

Cooperation. Water-stage-recorder graph and eight discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission proj&ct.

Revision (water years). WSP 1395: 19S3(M), 1938.

Rating table, water year 1956-57 (gage height, In feet, and 

discharge, In cubic feet per second)

5.3

5.4

5.5

5.7

5.8

1.4

2.6

5.6

17

27

5.9

6.1 

6.3 

6.6 

7.0

80

132

230

430

8.0 

9.0

11.0

13.0

15.0

1,160

2,020

4,050

6,600

9,900

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6 

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

£9

30

31

Total

Mean

Ac-ft

Oct.

2.5

4.4

4.1

3.8

3.4

3.8 

3.8

3.8

3.8

3.8

4.1

3.8

3.8

3.4

3.0

3.2

3.2

3.4 

3.4

3.2

3.2

3.0

2.5

2.0

2.0

2.1

1.7

77L

4.8

202 -57

334.1

10.8

663

Nov.

 2.6

20

9.4

3.8

2.5

£.8 

2^5

T3

2.5

4.1

4.1

5.2

7.7

6.6

10

11

12

13 

11

8.2

7.2

11

11

2.8

3.4

38~2".6

7.2

3.8

2.6

238.3

7.94

473

Dec.

3.0

3.0

4.4

4.4

20

*10~ 2.2

2.8

2.6

2.8

5.2

11

7.7

6.2

5.2

9.4

11

15 

15

12

13

13

13

13

13

12

12

8.8

6.6

5.6

268.1

8.65

532

Jan.

4.8 -5.6

7.7

6.2

6.6

8.2 

7.2

9.4

10

9.4

13

113

409

82

118

8.2

19

11 

28

547

65

8.8

16

*14

7.7

9.4

17

11

7.2

7.2

6.6

1,593.2

51.4

3,160

Feb.

10

11

8.2

7.2

6.6

7.2 

7.7

15

8.2

9.4

7.7

6.6

11

14

8.8

7.7

6.6

6.2 

5.6

11

67

55

865

4,160

*8,420

«5,780

4,370

2,640

-

27,532.7

983

54,610

Mar.

1,700

1,200

1,010

1,220

3,020

5,080 

2,330

1,660

1,440

1,140

1,040

2,350

1,730

1,090

1,300

1,700

1,590

1,300 

864

578

305

150

63

41

26

15

9.4

11

11

8.8 a a

o .0

31,991.0

1,032

63,450

Apr.

7.7

T7F

9.4

11

8.8

8.8 

8.2

8.2

13

34

90

99

110

976

67S

244

526

641 

557

532

514

344

102

30

35

85

112

110

107

99

6 j 108. 8

204

12,120

May

107

469

359

112

110

68 

13

135

394

261

138

132

141

150

150

135

183

4,490 

3,380

1,930

1,470

1,150

840

613

578

550

 588

230

246

300

258

19,480

628

38,640

June

192 182"

111

13

3.8

3.8 

4.8

5.2

5.6

7.7

8.2

8.2

7.7

7.2

6.6

6.2

6.2

4.8 

5.2

5.6

5.6

6.2

6.2

6.2

7.7

9.4

8.8

7.2

6.6

6.6

665.3

22.2

1,320

July

 6.6

FT

6.6

6.2

5.6

4.8 

4.8

5.6

6.2

6.6

6.6

6.2

5.2

4.4

4.4

4.4

4.4

4.4 

4.4

4.4

4.4

4.4

4.4

4.4

3.8

3.8

3.8

3.8

3.8

3 8

3.8

152.6

4.92

' 303

Aug.

3.4

3.4

3.4

3.4

3.4

3.4 

3.2

3T

3.2

3.8

3.8

3.8

4.1

4.4

4TT

3.8

3.8

3.4 

3.4

3.2

3.2

3.4

3.4

3.4

3.4

3.8

4.1

4.1 4.1

3 .3

3.4

111.7

3.60

222

Sept.

3.4

3.4

3.4

3.4

3.4

3.4 

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.4

3.2

3.2 

3.0

3.0

2.8

2.6

T3

3.0

3.4

4.4

115

Tf

4.4

3.4

225.4

7.51

447

Calendar year 1956 : Max 21,000 Mln i 5 Mean 672 Ac-ft 488,000

Water year 1956-57: Max 9,420 Mln 1.7 Mean 243 Ac-ft 175,900

* Discharge measurement made on this day.
EEL RIVER BASIN 547

Outlet Creek near Longvale, Calif.

Location. Lat 39°37'05", long 123"21'20", in NE£ sec. 1, T. 20 N., R. 14 W., on right 

bank 0.2 mile downstream from Bloody Run Creek, 0.9'mile upstream from mouth and 

8.2 miles downstream from Longvale.

Drainage area. 159 sq mi.

Records available. October 1956 to September 1957.

Sage. Water-stage recorder. Altitude of gage is 1,020 ft (from topographic map).

Extremes.--Maximum discharge during year, 10,500 cfs Feb. 24 (gage height, 12.41 ft); 

minimum, 0.3 cfs Sept. 3.

Remarks.--Records good.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, in cubic 

feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Aug. 4 Aug. 5 to Sept. 30

1,

1,

1.

1,

1,

2,

2

2,

3.

3.

5,

7,

9,

12.

.4

.5

.6

.7

.8

.0

.2

.5

.0

.5

.0

.O

.0

.0

1,

3,

5,

9,

2.0

4.5

8.0

14

22

46

74

136

315

545

560

350

500

800

0.6

.7

.8

.9

1.0

1.1

1.3

1.5

1.7

1.5

3.5

6.0

9.5

14

21

40

65

95

2

2

3

4

5

7

9

12

.0

.5

.0

.0

.0

.0

.0

.0

1,

3,

5,

9,

156

285

450

900

560

350

500

800

0.3 

2.3 

1.0 7.0

1.1

1.2 

1.5 

2.0

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

£3

24

25

26

27

28

29

30

31

Tota:

Mean

Ac-ft

Oct.

4.0

472

4.2

4.2

4.0

4.0

4.8

5.2

5.2

5.6

6.6

7.0

6.6

7.0

6.2

6.2

6.6

6.6

5.9

5.9

5.9

6.2

7.6

8.0

9.2

16

37

32

42

1.870

692

2,835.9

91.5

5,620

Nov.

287

192

106

72

55

*46

38

33

30

27

24

22

22

20

18

17

17

16

16

16

15

15

14

T3~ 13

13

13

13

13

13

1,209

40.3

2,400

Dec.

12

T2

12

13

18

47

46

36

29

26

71

94

72

58

47

40

*36

33

30

27

26

25

24

22

20

19

18

17

17

17

17

981

31.6

1,950

Jan.

16

16

15

*15

16

14

13

21

44

36

312

1,240

1,880

2,000

1,670

639

311

224

763

4.230

1,750

674

364

*263

239

192

139

112

100

85

78

17,471

564

34,650

Feb.

87

217

114

92

81

72

83

303

263

161

126

106

102

96

85

74

68

60

58

59

558

515

*4,980

*9,160

5,250

4,740

2,830

*1,490

-

31,830

1,137

63,130

Mar.

800

574

999

2,350

4,540

3,330

1,960

1,080

1,520

954

1,360

3,760

»2,200

1,200

1,340

1,240

954

735

570

458

373

315

268

238

220

202

180

163

433

449

429

35,194

1,135

69,810

Apr.

315

 244

209

185

163

147

134

121

115

104

99

ITS

189

1,630

530

501

931

966

578

429

342

285

244

209

182

163

145

130

119

109

9,633

321

19,110

May

109

404

207

147

121

106

99

102

138

175

132

130

126

141

*126

102

394

3,480

2,680

1,660

972

637

458

348

285

241

207

180

156

141

126

14,300

462

28,420

June

113

100

92

85

76

73

69

64

60

55

51

48

46

44

40

39

37

34

32

29

27

25

24

22

20

*19

18

16

16

15

1,389

46.3

2,760

July

15

14

14

13

12

11

10

10

8.0

8.3

8.3

8.3

8.3

8.7

8.7

8.3

8.3

7.6

7.3

6.9

6.9

6.9

6.6

6.3

5.7

5.7

5.4

5.0

5.0

4.5

4^0

258.0

8.32

512

Aug.

 375 4.0

3.5

3.0

*2.8

2.6

2.6

2.6

3.0

2.3

1.5

1.5

1.5

1.2

1.5

1.2

1.0

.8

.8

1.0

.8

.6

.6

.5

76

.6

.6

.6

.6

.6

.6

48.6

1.57

96

Sept.

0.8

.6

.4

.5

.8

1.2

1.0

1.0

.8

1.0

1.5

1.8

1.8

1.8

2.0

2.3

2.3

*1.8

1.8

1.8

.6

.6

1.2

1.0

1.0

6.2

~69 108

35

69

318.6

10.6

632

Calendar year 1956: Max - Win - Mean - Ac-ft -

Water year 1956-57: Max 9,160 Min 0.4 Mean 316 Ac-ft 229,100

Peak discharge (base, 5,000 cfs).--Jan. 20 (1 a.m.) 8,33O-cfa (11.02 ft); Feb. 24 (5 a.m.)

10,500 cfa (12.41 ft); Mar. 4 (lo p.m.) 5,600 cfs (9.04 ft); Mar. 12 ( 2 a.m.) 5,490 cfa (8.95 ft); 

May 18 (5:30 a.m.) 5,390 cfs (8.87 ft).

* Discharge measurement made on this day.

5105Z9 0-59-36
548 EEL RIVER BASIN

Eel River above Dos Rios, Calif.

Location. Lat 39°41'20", long 123°21'30", in SW£ sec. 7, T. 21 N., R. 13 W., on left bank 

1.8 miles upstream from Middle Pork and 2.1 miles south of Dos Rios.

Drainage area. 703 sq mi.

Records available . December 1950 to September 1957.

Gage . Water-stage recorder. Altitude of gage is 950 ft (from topographic map).

Average discharge.--6 years (1951-57), 1,541 cfs (1,116,000 acre-ft per year).

Ext reme s.--Maximum discharge during year, 27,100 cfs Feb. 25 (gage height, 21.70 ft); minEnumdaily, 3.4 cfs Oct. 3.

1950-57: Maximum discharge, 123,000 cfs Dec. 22, 1955 (gage height, 45.4 ft, from 

floodmarks), from rating curve extended above 27,000 cfs on basis of slope-area determination of peak flow; minimum daily, 0.8 cfs Sept. 11, 1955.

Remarks.--Records good. Plow regulated by Lake Pillsbury (see p. 543) and by diversion 

through Potter Valley powerhouse (see p. 545).

ating tables, water year 1956-57 (gage height, in feet, and discharge, In cubic feet per second) 

Oct. 1 to Jan. £0 Jan. £1 to Feb. £4 Feb. £5 to Sept. 30

2.4 

E.6 

E.9 

3.4 

4.0 

4.5

67 

14E 

240

5.0

6.0

7.0

9.0

11.0

14.0

375 

745 

1,250 

£,560 

4,600 

9,400

4.5 

5.0 

5.5 

6.0 

7.0

18E 

276 

405 

600 

1,090

9.0 E.560

11.0 4,600

14.0 9,400

17.0 15,500

20.0 22,300

E.2

£.4 

E.7 

3.0 

3.4 

4.0

IE 

E4 

43 

8E 

174

4.5 

5.0 

6.0 

7.0 

9.0

E76

405

750

1,£50

2,560

Note. Same as pre 

table above 9.0 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

£

3

4

5

6

7

8

9

10

11

IE

13

14

15

16

17

18

19

£0

21

22

4.3

24

£5

26

£7

28

£9

30 

31

Total

Mean

Ac-ft

Oct.

4.0

3.7

3.4

3.7

4.0

3.7

4.4

6.5

6.9

7.7

10

IE

13

12

11

10

10

10

10

9.7

9.7

9.7

14

17

19

30

54

53

55

2, 680 

1,380

4,477.1

144

8,880

Nov.

559

360

£20

148

116

*90

75

66

59

59

49

45

41

38

37

36

35

35

35

35

35

33

31

30

31

30

34

45

31

£8_

£,466

8E.2

4,890

Dec.

30

£8

27

£8

40

76

96

69

6£

54

93

14E

T24

108

88

75

67

*65

62

61

59

55

53

51

48

47

44

43

4E

40 

38

1,915

61.8

3,800

Jan.

35

35

34

33

*34

33

33

45

76

69

3£4

£,090

4,850

3,300

3,3£0

1,380

768

532

1,010

8.650

£,880

1,££0

770

59£

*5£4

433

351

315

£76

244 

223

34,479

1,112

68,390

Feb.

£25

384

285

£34

£14

£0£

207

456

512

370

310

£74

£67

£65

£50

230

218

207

198

196

755

1,050

10,100

*21,000

£1,400

15,900

11,400

6,370

-

93,479

3,339

185,400

Mar.

3,780

£,680

£,810

5,070

IE, OOP

10,100

6,690

4, £90

4,410

3,170

3,340

9, £00

6,440

*3,700

4,110

4,560

3,920

3,200

2,370

1,380

1,430

1,140

880

742

670

616

550

507

875

1,100 

955

107,185

3,458

£12,600

Apr.

764

588

504

*456

417

387

365

34E

3£E

308

315

381

432

3,200

1,890

1,250

1,990

£,640

1,700

1,500

1,350

1,220

777

595

507

480

483

468

438

408

£6,477

883

5E.520

May

396

888

1,100

516

411

372

315

£95

767

754

539

480

471

519

507

447

644

*10. 700

10, £00

5,900

4,060

£,840

£,170

1,620

1,430

1,290

1,150

813

666

710 

670

53,640

1,730

106,400

June

556

498

468

338

£61

£36

£££

210

196

188

178

169

163

156

148

145

137

1£6

118

110

103

98

9£

87

81

75

70

*68

66

64

5,427

181

10,760

. July

61

Bo

58

56

52

49

46

44

41

38

38

37

37

37

38

37

35

34

3£

31

30

£9

£8

28

26

£5

£4

£4

££

££ 

£0

1,139-

36.7

£,£60

Aug.

19

18

18

17

16

16

*16

17

16

16

15

16

15

14

14

14

14

IE

IE

12

IE

11

11

11

10

10

10

10

10

11

11

4£4

13.7

841

Sept.

10

10

10

9.7

9.4

9.4

9.1

9.1

9.1

8.E

7.6

8.2

8.5

8.8

9.1

9.4

9.7

 10

10

10

10

9.1

9.1

8.5

7.9

19

384

347

142

192

1,313.9

43.8

£,610

Calendar year 1956: Max 50,000 Mln 3.4 Mean 1,760 Ac-ft 1, £78, 000

Water year 1956-57: Max £1,400 Mln 3.4 Mean 911 Ac-ft 659,400

Peak discharge (base, 14,000 cfs). Feb. £5 (3 a.m.) £7,100 cfs (21.70 ft). 

* Discharge measurement made on this day.
EEL RIVER BASIN 

Middle Fork Eel River below Black Butte River, near Covelo, Calif.

549

Location. Lat 39°49'35", long 123°05'30", in NW£ sec. 28, T. 23 N., R. 11 W., on right 

bank 0.2 mile downstream from Black Butte River and 8.6 miles east of Covelo.

Drainage area. 367 sq mi.

Records available.--August 1951 to September 1957.

Gage.--Water-stage recorder. Altitude of gage Is 1,430 ft (from river-profile map).

Average discharge. 6 years, 1,161 cfs (840,500 acre-ft per year).

Extremes.--Maximum discharge during year, 36,200 cfs Feb. 24 (gage height, 16.18 ft); minimum, 10 cfs Sept. 3-15.

1951-57: Maximum discharge, 89,100 cfs Dec. 21, 1955 (gage height, 25.0 ft, from 

floodmarks), from rating curve extended above 19,000 cfs on basis of slope-area determination of peak flow; minimum, 4.4 cfs Sept. 22-26, 1951.

Remarks. Records good except those for periods of no gage-height record or shifting 

control, which are fair. No regulation or diversion.

Rating tables, water y3ar 1956.-57, except periods of shifting control (gage 

height, in feet, and discharge, in cubic feet per second)

Oct. 30 to Sept. 30

2.4

2.5

2.6 

2.8 

3.2 

3.6

18

38

101

190

4.0 

4.5 

5.0 

6.0 

7.0 

8.0

320

553

870

1,620

2,570

3,990

1.9 

2.1 

2.4 

2.6 

3.0 

3.5 

4.0

97

195

360

5.0

6.0

8.0

10.0

12.0

15.0

970

1,740

4,040

7,550

13,300

29,100

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

L.3

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

12

12

12

12

12

12

11

T2

12

15

20

19

18

17

17

18

18

18

16

16

15

15

29

33 

29

174

180

96

939

5,640

700

6,149

198

12,200

Nov.

390

400

438

405

320

250

*208

188

173

165

154

142

132

125

116

111

111

110

105

99

99

97

96

94 

93

90

89

87

87

86

5,060

169

10,040

Dec.

86

84

83

86

103

99

90

87

89

96

526

526

344

254

190

158

146

140

*128

120

115

108

103

102 

97

89

87

87

87

86

84

4,480

145

8,890

Jan.

83

82

79

78

75

75

74

87

78

75

91

220

956

544

550

344

247

210

354

2,700

817

538

421

*336 

296

254

241

241

229

229

226

10,830

349

21,480

Feb.

229

235

215

215

215

215

220

238

235

235

235

238

534

914

893

956

1,030

998

872

778

1,180

1,710

6,750

27.500 

 13,100

10,800

6,180

3,760

-

80,680

2,881

160,000

Mar.

2,840

2,250

2,100

3,200

7,250

7,350

4,670

3,350

3,070

2,410

2,510

4,140

2,970

2,420

2,330

2,100

1,780

1,560

1,490

1,510

1,380

1,200

1,120

1.080 

1,120

1,190

1.220

1,240

1,490

1,490

1,570

75,400

2,432

149,600

Apr.

,510

,380

* ,420

,400

,390

,370

,140

,040

963

914

865

907

858

2.940

1,590

,330

,290

,270

,210

,100

984

921

886

830 

791

765

778

817

872

893

34,424

1,147

68,280

May

858

1,080

928

851

900

1,100

963

956

1,060

928

865

804

844

921

886

844

 1,040

5,850

4,400

3,500

3,060

2,570

2,050

1,680 

1,430

1,240

1,160

1,050

970

886

804

46,478

1,499

92,190

June

752

694

646

598

568

532

498

465

443

421

390

365

332

288

257

238

215

200

190

183

173

165

152

144 

132

125

 118

113

108

99

9,604

320

19,050

July

89

83

78

74

69

64

60

58

54

53

51

49

48

51

51

48

45

43

42

41

40

39

38

36 

36

34

33

32

31

29

29

1,528

49.3

3,030

Aug.

28

28

26

26

26

 26

27

27

26

25

24

23

22

21

20

19

18

17

17

16

15

15

14

14 

14

13

13

12

12

12

12

608

19.6

1,210

Sept.

11

11

10

10

10

10

10

10

10

10

10

10

10

10

10

11 11

11

1111

11

1111

11 

11

12

1...210

466

226

313

2,489

83.0

4,940

Calendar year 1956: Max 33,700 Mln 11 Mean 1,294 Ac-ft 939,100

Water year 1956-57: Max 27,500 Min 10 Mean 761 Ac-ft 550,900

Peak discharge (base, 10,000 cfs).--Feb. 24 (2 p.m.) 36,200 cfs (16.18 ft).

* Discharge measurement made on this day.

Note. Shifting-control method used Nov. 1 to Dec. 11, Sept. 6-27. No gage-height record Aug. 7 

to Sept. 5; discharge estimated on basis of records for North Fork Eel River near Mina.
550 EEL RIVER BASIN

Mill Creek near Covelo, Calif.

Location. Lat 39°44'45", long 123°10'15", in SW£ sec. 23, T. 22 N., R. 12 W., on right 

bank 50 ft upstream from unnamed tributary, 0.65 mile downstream from county road 

bridge, and 5.2 miles southeast of Covelo.

Drainage area. 97.1 sq mi.

Records available. September 1956 to September 1957.

gage. Water-stage recorder. Altitude of gage is 1,280 ft (from topographic map).

Extremes. 1956-57: Maximum discharge during water year, 4,240 cfs Feb. '24 (gage height, 

12.18 ft), from rating curve extended above 2,300 cfs by logarithmic plotting; no flow 

at times during several months.

Remarks. Records good. No regulation or diversion.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Jan. 20 Jan. 21 to Sept. 50

1.9

2.0

2.1

2.2

2.3

2.4

2.5

0

.2

1.1

2.3

4.0

7.5

14

2.7 

3.0 

5.5 

4.0 

5.0 

7.0

39

93

198

314

578

1,260

1.4

1.5

1.6

1.7

1.8

1.9

2.0

.4

1.3

3.0

5.0

10

17

2.2 

2.5 

3.0 

4.0 

6.0 

9.0 

12.0

34

62

127

318

880

2,180

4,100

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

O

0

0

O

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

o

0

0

o

.2

0

0

.1

~2~9 124

153.3

4.95

504

Nov.

2.8

273

1.1

.5

.2

.1

.1

*.l

.1

.1

.1

.1

0

0

0

0

o

0

o

0

0

0

o

0

0

o

0

0

o

0

7.6

0.25

15

Dec.

0

0

0

0

.1

.1

0

o

0

0

.2

.1

.1

0

0

0

o

0

0

0

o

0

o

0

0

o

.1

.1

.1

0

0

0.9

0.03

1.8

Calendar year 1956: Max -

Jan.

0

0

0

0

o

0

0

.4

.1

0

.8

176

558

469

367

84

17

5.6

143

1,120

206

99

69

*52

46

38

26

23

14

11

9.2

3,534.1

114

7,010

Feb.

13

37

20

14

10

9.2

9.7

50

61

42

31

26

31

30

22

17

14

12

10

9.7

107

121

*1,210

5.550

1,420

1,600

724

424

9,624.6

344

19,090

Mar.

307

230

354

834

1,480

1,040

578

409

411

285

360

1,330

646

424

558

424

401

314

248

200

164

137

118

106

99

90

80

74

189

158

182

12,230

395

24,260

Apr.

178

115

*95

81

73

69

63

58

55

52

52

58

59

411

T52

179

376

292

173

141

115

94

79

70

61

55

51

46

42

39

3,364

112

6,670

May

40

113

62

47

40

33

30

35

57

64

62

46

42

42

37

31

*43

829

746

396

274

176

130

101

78

65

56

47

40

34

28

3,824

123

7,580

June

24

20

17

14

11

10

9.2

8.2

7.3

6.9

5.8

5.5

4.9

4.9

4.6

4.3

4.0

3.5

3.2

3.2

3.0

2.8

2.6

2.4

2.2

2.0 *e.o

2.0

1.9

179

194.3

6.48

385

July

1.8

1.4

1.3

1.0

.7

.6

.6

.5

.5

.5

.5

.5

.5

.4

.4

.2

.2

.1

0

0

0

0

0

0

0

o

0

0

0

0

o

11.7

0.38

23

Aug.

0

0

0

Sept.

0

0

0

0

0

0

0

o

0

0

0

0

0

o

o

0

0

0

o

0

0

0

0

0

0

0

.8

.2

.2

.1

1.3

0.04

2.6

Mln - Mean - Ac-ft -

Water year 1956-57: Max 3,550 Mln O Mean 90.3 Ac-ft 65,340

Pea 

(12

jc discharge (base, 2,5OO cfs).--Jan. 20 (2 a.m.) 3,140 cfa (10.63 ft); Feb. 24 (1 p.m.) 4,J 

12.18 ft); Mar. 4 (9:30 p.m.) 2,510 cfs (9.59 ft); Mar. 12 (2 a.m.) 2,540 cfs (9.63 ft).

Discharge measurement made on this day. 

Note. No flow occurred in September 1956.
EEL RIVER BASIN 551

Eel River below Dos Rlos, Calif.

Location. Lat 39°44'15", long 123°22'15", in NEij sec. 25, T. 22 N., R. 14 W., on left 

bank 1.1 miles downstream from Burger Creek, 1.7 miles northwest of Dos Rios, and 

2.2 miles downstream from Middle Fork.

Drainage area. 1,481 sq mi.

Records avallable. Nov'ember 1911 to December 1913, October 1951 to September 1957. Published as "at Two Rivers" 1911-13.

Sage. Water-stage recorder. Altitude of gage is 800 ft (from topographic map). Prior 

to Dec. 30, 1913, staff gage at bridge 500 ft downstream from Middle Fork at different 

datum.

Average discharge. 7 years (1912-13, 1951-57), 3,377 cfs (2,445,000 acre-ft per year).

Extremes.--Maximum discharge during year, 76,100 cfs Feb. 24 (gage height, 26.02 ft); minImum, 20 cfs Oct. 1, 2, 6, 7.

1911-13, 1951-57: Maximum discharge, 283,000 cfs Dec. 22, 1955 (gage height, 

49.86 ft), from rating curve extended above 120,0.00 cfs on basis of a slope-conveyance 

study; minimum, 5.2 cfs Sept. 13, 1955.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Flow partly regulated by Lake Pillsbury (see p. 543) and by diversion through Potter 

Valley powerhouse (see p. 545).

Revisions (water years).-rWSP 1445: 1952-54.

Rating, tables, water year 1956-57 (gage height, In feet, and discharge, In cubic 

feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

5.0 

5.3 

5.5 

6.0 

7.0 

8.0

17

26

65

110

260

680

1,300

9.0

10.0

11.0

13.0

17.0

20.0

24.0

2,210

3,500

5,340

10,300

24,500

38,500

62,500

5.1

5.2 

5.4 

5.6 

5.9 

6.4 

7.0 

8.0

23

34

62

105

190

360

685

1,450

9.0

10.0

12.0

14.0

16.0

19.0

22.0

2,540

3,980

7,960

13,700

20,500

33,500

50,000

Discharge, In cubic feet pep second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11 

12

15

14

15

16

17

18

19

20

21

22

25

24

25

26

27 

28

29

30

31

Total

Mean

Ac-ft

Oct.

21 

2T

21

21

21

21

21

22

23

25

30 

56

41

58

36

55

54

56

56

55

54

54

44

58

65

88

532 

228

196

7.070

3,240

11,965

586

25,730

Nov.

1.280 

1,010

846

745

585

462

582

*526

288

256

228

207

192

174

159

153

147

144

158

130

122

120

118

112

110

108

105 

122

102

95_

8,966

299

17,780

Dec.

98 

92

90

95

122

174

189

150

128

128

428 

1.080

710

565

434

550

302

*264

259

219

210

198

180

180

168

156

144

141

138

135

130

7,657

246

15,150

Jan.

125 

122

118

115

110

110

108

T55

177

155

596 

5,530

9,060

5,930

6,160

2,550

1,480

1,070

1,260

15.900

5,530

2,560

1,690

1,520

*1,150

978

765

715

620

545

514

64,596

2,084

128,100

Feb.

518 

775

610

514

482

462

482

948

1,080

822

715 

655

822

1,520

1,450

1,460

1,550

1,520

1,560

1,220

2,050

3,490

20,700

*60.000

49,700

55,600

25,800 

15,400

-

227,685

8,152

451,600

Mar.

8,650 

6,540

6,550

9,700

24. 500

22,200

14,600

9,620

9,090

6,910

6,760 

17,000

11,700

*7,980

8,590

8,750

7,460

6,280

5,210

4,500

5,760

5,090

2,680

2,420

2,310

2,300

2,230 

2.170

2,840

3,610

3,160

252,540

7,501

461,200

Apr.

3,090 

2,590

2,470

*2,380

2,260

2,230

1,970

1,780

1,640

1,550

1.490 

1,570

1,650

7.540

4,560

3,400

4,640

5,540

5,880

5,400

5,020

2,720

2,250

1,940

1.77Q

1,660

1,640 

1,620

1,610

1,600

79,040

2,655

156,800

May

1,560 

2,500

2,490

1,770

1,590

1,750

1,590

1,520

2,540

2,180

1,860 

1,690

1,650

1,880

1,770

1,570

1,720

19.200

18,200

11,900

9,520

7,150

5,650

4,570

5,700

5,250

*2,940 

2,400

2,110

2,060

1,890

125,550

4,050

249,000

June

1.720

1,540

1,450

1,240

1,090

1,010

955

890

854

799

744 

692

655

625

601

565

521

488

455

450

405

582

560

340

316

296

282 

*271

257

244

20 , 455

681

40,530

July

235 

226

217

208

195

184

175

166

157

148

145 

156

155

156

142

156

125

118

110

105

102

98

94

94

90

85

85 

81

76

73

69

4,140

134

8,210

Aug.

66 

64

62

61

59

57

*56

54

54

55

52

50

48

47

46

44

45

42

39

38

37

35

35

54

55

52

52

51

51

32

32

1,599

45.1

2,770

Sept.

51 

31

50

28

28

28

27

27

26

25

f

25

25

26

26

*27

28

28

28

28

27

25

25

24

52

1.670 

1,550

571

698

5,195

175

10,300

Calendar year 1956: Max 93,200 Mln 21 Mean 5,948 Ac-ft 2,866,000

Water year 1956-57: Max 60,000 Mln 21 Mean 2,162 Ac-ft 1,565,000

Peak discharge (base, 22,000 cfs). --Jan. 20 (7 a.m.) 25,100 cfs (16.64 ft); Feb. 24 (10 p.m.) 

76,100 cfs (26.02 ft)j Mar. 5 (5 a.m.) 25,800 cfs (17.50 ft); May 18 (3 p.m.) 24,900 cfs (17.08 ft).

* Discharge measurement made on this day. 

Note. No gage-height record July 21 to Aug. 6; discharge estimated on basis of records for statlon above Dos Rlos.
552 EEL RIVER BASIN

North Pork Eel River near Mina, Calif.

Location. Lat 39 0 56'15", long 123°20'45", in SW£ sec. 8, T. 24 N., R. 13 W., on right 

bank 1.2 miles upstream from Asbill Creek, 2 miles south of Mina, and 8.8 miles northeast of Nashmead.

Drainage area.--251 sq mi.

Records available.--August 1953 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,030 ft (from topographic map). 

Aug. 27, 1953, to Jan. 15, 1954, water-stage recorder and Jan. 16 to June 22, 1954, 

wire-weight gage read twice daily, at bridge 0.2 mile downstream at different datum.

Extremes. Maximum discharge during year, 15,200 cfs Feb. 24 (gage height, 16.41 ft),

from rating curve extended above 8,000 cfs on basis of slope-area determination at gage 

height, 24.00 ft; minimum, 1.2 cfs Oct. 5-7.

1953-57: Maximum discharge, 58,400 cfs Dec. 22, 1955 (gage height, 24.00 ft), 

from rating curve extended above 6,600 cfs on basis of slope-area determination of 

peak flow; minimum, 1.2 cfs Sept. 9-12, 1955, Oct. 5-7, 1956.

Flood in December 1937 reached a stage of about 30.7 ft (former site and datum), 

from information by local resident.

Remarks. Records good except those for periods of no gage-height record, which are fair.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, In 

cubic feet per- second)

Oct. 31 to Sept. 30

3.6

3.7

3.8 

4.0 

4.2 

4.5 

4.9

0.6

2.2

4.2

9.0

18

40

85

5.4 

6.0 

6.5 

7.0 

8.0 

9.0

175

360

590

890

1,580

2,430

2.7

2.8

2.9

3.0 

3.2 

3.4 

3.7 

4.0 

4.5

1.7 

2.6

5.0

5.5

6.0

7.0

8.0

10.0

12.0

14.0

16.0

220

344

520

970

1,600

3,400

5,770

8,810

13,900

Discharge, In cubic feet per s

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

1.6

1.4

1.4

1.4

1.2

1.2

1.2

1.4

1.4

2.0

3.2

4.2

3.8

3.2

3.2

3.6

4.0

4.4 

4.4

4.4

4.2

4.2

7.6

a9.0

a7.5

a 60

a65

52

38

al,700 

alpOO"

3,000.1

96.8

5,950

Nov.

*a600

36U

214

148

109

85

67

56

48

42

38

35

33

31

29

29

28

28 

28

26

25

25

24

23

23

22

22

22

22

£i

2,263

75.4

4,490

Dec.

21

2T

21

21

29

40

35

31

28

31

272

413

JfzT

164

123

98

80

66 

*57

50

45

41

38

36

34

32

29

29

28

28

28

2,191

70.7

4,350

Jan.

27

26

26

25

24

23

22

28

31

26

48

694

2,470

1,580

1,650

764

428

286 

460

4.060

1,160

658

*445

326

271

224

180

171

138

13O

122

16,523

533

32,770

Feb.

128

208

152

136

126

119

133

396

373

283

242

218

335

370

298

262

244

224 

195

176

336

552

4,710

12,600

~6,630

*6,440

3,500

1,900

41,286

1,474

81,890

Calendar year 1956: Max 19,700 Mln 1.2

Mar.

1,220

890

1,000

2,210

5,300

5,420

2,910

1,850

2,010

1,410

1,820

5.440

2,820

1,980

2,190

1,970

1,860

1,460 

1,160

965

806

654

560

473

434

400

354

323

355

598

726

51,738

1,669

102,600

Apr.

780

588

*496

428

373

335

304

271

249

227

"22~4 210

269

1,750

8ll

713

1,000

1,060 

788

667

572

484

42O

370

329

296

271

251

231

212

Hl4,979

499

29,710

May

212

526

350

269

235

212

196

227

335

278

298

283

278

373

354

*288

342

4,960 

3,970

2,880

2,010

1,340

1,020

811

649

532

448

383

332

293

260

24,944

805

49,480

June

231 20"6"

191

172

157

148

138

130

122

114

105

98

90

86

83

78

71

66 

60

56

54

51

46

42

39

36

*34

32

31

30

2,797

93.2

5,550

July

28

Tf

26

25

22

21

19

19

18

17

16

16

16

16

18

17

16

14 

13

12

12

11

10

10

9.5

9.2

8.9

8.6

8.3

7.7

7.1

478.3

15.4

949

Aug.

6.8

6.5

6.2

5.9

*5.9

6.2

6.2

5.9

5.6

5.3

5.0

4.8

4.8

4.6

4.4

4.4

4.2 

4.0

3.8

3.6

3.6

3.4

3.4

3.3

3.2

3.2

3.2

3.0

3TTJ

3.0

143.2

4.62

284

Sept.

3.0

2.9

2.9

2.8

2.8

2.7

2.7

2.7

2.7

2.6

2.5

2.5

2.6

2.6

2.6

2.6

*2.7

2.7 

2.6

2.5

2.5

2.4

2.4

2.3

2T5

3.6

374

rre

61

54

734.2

24.5

1,460

Mean 656 Ac-ft 476,100

Water year 1956-57: Max 12,6OO Mln 1.2 Mean 441 Ac-ft 319,500

Peak discharge (base, 8,OOO cfs). --Jan. 20 (3 a.m.) 8,050 cfs (13.60 ft); Feb. 24 (3:30 p.m.)

15,200 cfs (16.41 ft); Mar. 12 (3 a.m.) 8,090 cfs (13.62 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Middle Fork Eel River below 

Black Butte River, near Covelo.
EEL RIVER BASIN 553

Eel River at Alderpoint, Calif.

Location. Lat 40 C 10'35", long 123°36'20", in NW£ sec. 27, T. 3 S. , R. 5 E. , on left bank 

at Alderpoint, 600 ft downstream from Carter Creek and 11.4 miles northeast of Garberville.

Drainage area. 2,079 sq mi.

Records available. September 1955 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 270 ft (from topographic map).

Extremes. Maximum discharge during year, 99,600 cfs Feb. 24 (gage height, 36.40 ft); 

minimum, 25 cfs Oct. 3.

1955-57: Maximum discharge, 376,000 cfs Dec. 22, 1955 (gage height, 72.5 ft, from 

floodmarks) , from rating curve extended above 110,000 cfs on basis of slope-area determination of peak flow; minimum, 13 cfs Sept. 12,13, 1955.

Remarks. Records good. Flow slightly regulated by Lake Pillsbury (see p. 543) and by 

diversion through Potter Valley powerhouse (see p. 545).

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Jan. 20 Jan. 21 to Sept. 3O

1.7

1.8

1.9

2.0

2.2

2.5

3.0

26

45

72

102

168

282

535

3.5

4.0

5.0

9.0

13.0

17.0

860

1,360

3,010

11,000

21,000

33 , 000

1.4

1.6

1.9

2.4

3.0

29

51

104

222

475

3.8

5.0

10.0

20.0

3O.O

1,040

2,440

13,000

42,000

75,500

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Tota]

Mean

Ac-ft

Oct.

26.

26

26

*26

28

28

28

28

32

o7

3

41

43

50

53

SO

48

48

48

48

48

58

67 

81

118

254

386 

320

7.740

7,360

17,209

555

34,130

Nov.

2.940

1,830

1,320

1,040

860

674

 559

466

401

356

320

290

262

242

223

208

200

190

186

182

175

165

158

154 

151

148

144

137 

148

141

14,270

476

28,300

Dec.

131 

128

128

131

151

212

242

254

212

227

598

1.850

1,570

 1,110

846

668

559

483

433

391

356

338

316

299 

286

274

258

242 

234

231

227

13,365

431

26,510

Jan.

223 

219

212

204

197

193 m

215

246

274

316

3,680

12,300

9,500

 11,700

5,880

3,500

2,430

2,510

21,500

9,630

4,980

3,100

2,360 

2,030

1,810

1,550

1,350 

1,240

1,080

986

105,408

3,400

209,100

Feb.

986 

1,340

1,340

1,080

968

902

894

1,550

2,070

1,720

1,480

1,340

 1,350

1,860

1,990

1,900

1,920

1,940

1,830

1,670

1,820

4,340

22,200

75.500 

66,700

45,700

35,700

 20,300

302,390

10,800

599,800

Mar.

12,800 

9,270

7,580

11,500

33,200

55.000

 23,200

15,100

14,200

11,300

10, 700

27 , 800

20,300

14,000

 13,600

14,600

12,500

10, 600

8,750

7,390

6,320

5,240

4,440

3,900 

3,600

3,500

3,320

5.120 

3,420

5,640

4,780

360,670

11,630

715,400

Apr.

5,360 

4,280

3,760

3,540

3,280

3,120

2,890

2,540

2,330

 2 , 200

2.070

2,100

2,270

9,050

7,770

5,320

6,610

7,960

6,460

5,240

4,600

4,080

3,520

2,940 

2,600

2,410

2,280

2,220 

2,150

 2,110

117,060

3,902

232,200

May

2,080 

3,260

3,540

2,670

2,150

2,140

2,130

1,940

2,570

2,920

2,570

2,280

2,130

2,490

2,470

2,210

2,140

 22,000

27.800

18,100

14,000

10,200

8,000

6,400 

5,100

4,320

3,820

3,180 

2,640

2 , 380

2,240

171,870

5,544

340,900

June

2.010 

1,810

1,650

1,530

1,300

1,180

1,100

1,040

950

894

846

776

720

685

650

620

590

548

492

455

425

410

390

362 

344

322

298

283 

276

265

23,221

774

46,060

July

254 

24?

235

228

216

205

194

187

180

175

170

165

163

158

158

158

156

151

144

137

131

124

120

114 

 108

104

100

98 

96

90

66

4,849

156

9,620

Aug.

82

J9

77

75

73

71

70

71

71

70

68

66

64

63

62

60

58

57

54

51

51

50

49

49

47

46

4$

45 

44

43

44

1,856

59.9

3,680

Sept.

45 

44

44

44

43

41

41

40

 40

38

38

37

37

363"6

36

36

36

37

37

38

38

38

38 

38

47

98

2.490 

776

514

4,901

163

9,720

Calendar year 1956: Max 118,000 Mln 26 Mean 5,410 Ac-ft 3,927,000

Water year 1956-57: Max 75,500 Mln 26 Mean 3,115 Ac-ft 2,255,000

Peak discharge (base, 26,000 cfs). Jan. 2O (11 a.m.) 32,300 cfs (16.78 ft): Feb. 24 (10 p.m.) 

99,600 cfs (36.40 ft)j MaE. 6 (8:30 a.m.) 37,700 cfs (18.57 ft); MaE. 12 (12 m.) 34,100 cfs 

(17.57 ft); May 18 (4 p.m.) 32,500 efs (16.76 ft).__________________________________

* Discharge measuEement made on this day.
554 EEL RIVER BASIN 

South Fork Eel River near Bransoomb, Calif.

Location. Lat 39°43'09", long 123°39'06", in NW^- sec. 32, T. 22 N., R. 16 W., on right 

bank 0.4 mile upstream from Jack of Hearts Creek and 4.7 miles north of Branscomb.

Drainage area.--43.9 sq mi.

Records available. October 1946 to September 1957.

gage.--Water-stage recorder. Altitude of gage is 1,380 ft (from topographic map).

Average discharge . 11 years, 171 cfs (123,800 acre-ft per year).

Extremes. Maximum discharge during year, 3,400 cfs Feb. 24 (gage height, 7.40 ft); minimum, 2.8 cfs Oct. 1-9.

1946-57: Maximum discharge, 20,100 cfs Dec. 22, 1955 (gage height, 16.20 ft), from 

rating curve extended above 4,600 cfs on basis of slope-area determination of peak 

flow; minimum, 1.4 cfs Sept. 24, 1949.

Remarks. Records good. Ho regulation or diversion.

Revisions (water years).~WSP 1395: Drainage area. WSP 1445: 1951, 1952-53(M), 1954.

Rating tables, water year 1956-57 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to May 18 

2.2

May 19 to Sept. 30

0.9

1.0

1.1 

1.3 

1.5

4.0 

5.0 

6.0 

7.0

31

62.

166

285

436

880

1,430

2,170

3,000

0.89 

1.0

1.5 

2.0

4.5

9.0

16

36

64

166

Note. Same as 

preceding table 

above 2.0 ft:

Discharge, in cubic feet per second, water year October 1856 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Total

Mean

Ac-ft

Oct.

2.8

275

2.8

2.8

2.8

2.8

2.8

2.8

2.8

4.1

8.8

6.1

4.9

4.5

4.1

4.1

3.7

3.7

3.7

3.7

3.7

3.7

13

13

7.5

83

44

24

83

981

257

1,636.5

52.5

3,230

Nov.

196 *T33~

118

93

77

64

54

47

42

38

35

31

29

26

25

24

23

21

20

18

17

17

16

15

14

14

13

13

13

T2

1,377

42.6

3,530

Dec.

12

11

IT

13

25

27

21

17

16

17

39

50

47

41

37

34

*30

27

25

23

23

31

19

17

17

16

16

15

14

14

13

708

32.8

1,400

Jan.

13

12

12

12

11

11

12

23

21

16

37

159

277

436

538

329

235

180

412

1.520

613

380

277

*226

189

159

135

120

105

95

85

6,450

208

12,790

Feb.

97

129

105

97

89

85

87

155

148

135

126

116

107

97

91

85

77

72

68

75

175

182

1,410

2.670

1,510

1,690

1,140

*676

_

11,465

409

22,740

Mar.

447

552

426

785

1,620

1,590

920

656

760

590

786

1.840

1,040

676

618

550

465

370

507

262

228

198

175

157

146

142

136

114

T77

157

130

16,596

555

52,920

Apr.

159

*148

140

153

122

114

105

97

91

85

53" 81

99

445

252

233

269

267

240

217

191

171

153

140

129

118

107

99

93

85

4,666

156

9,250

Calendar year 1956: Max 4,610 Mln 2.8 Mean 163

May

85

157

107

87

79

75

70

7C

77

89

95

87

87

112

*116

114

294

1.900

1,170

825

554

409

525

267

234

194

171

151

144

131

118

8,356

270

16,570

June

107

92

82

78

75

68

64

61

58

55

52

48

47

46

43

42

40

38

57

36

54

53

32

30

*29

28

28

27

££

1,531

51.0

3,040

July

26

25

25

24

23

22

21

20

19

18

18

18

18

18

18

18

17

16

16

15

14

14

14

14

13

12

11

11

11

10

9 5

528.5

17.0

1,050

Aug.

9.5

g!o

9.0

*9.0

9.0

9.0

9.0

9.0

9.0

8.5

8.5

8.0

8.0

7.6

7.2

6.7

6.7

6.7

6.3

6.5

6.5

5.9

579

5.9

5.9

5.9

5.9

5.9

5.9

5 9

250.4

7.43

457

Sept.

5.5

5.5

5.2

5.2

5.2

5.2

5.2

4.8

4.8

4.8

4.8

4.8

4.8

4.8

5.2

*5.2

5.2

5.2

4.8

4.8

4.8

4.8

4.5

475

4.5

7.6

46

35

32

23

260.7

8.69

517

Ac-ft 118,500

Water year 1956-57: Max 2,670 Min 2.8 Mean 147 Ac-ft 106,500

Peak discharge (base. 3,000 cfs). --Oct. 30 (5 a.m.) 2,070 cfs (5.88 ft); Jan. 19 (12 p.m.) 

2,530 cfs (6.45 ft); Feb. 24 (5 a.m.) 3,400 cfs (7.40 ft); Feb'. 26 (l p.m.) 3,290 cfs (6.15 ft);

Mar. 12 (2 a.m.) 2,570 cfs (6.50 ft); May 18 (5 a.m.) 2,760 cfs (6.73 ft).

* Discharge measurement made on this day.
EEL RIVER BASIN 555

South Pork Eel River near Miranda, Calif.

Location. Lat 40°10'55", long 123°46'30", in NW£ sec. 30, T. 3 S., R. 4 E., on right 

bank at Sylvandale Campgrounds on U-. S. Highway 101, 0.5 mile upstream from Rocky Glen 

Creek, 4.3 miles southeast of Miranda, and 20 miles upstream from mouth.

Drainage area. 537 sq mi.

Records available.--May 1940 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 250 ft (from topographic map). Prior 

£o Nov. 2, 1940, staff gage at site 200 ft upstream at datum 0.8 ft higher. Nov. 2, 

1940, to Oct. 31, 1944, staff gage at present site and datum.

Average discharge.--17 years, 1,783 cfs (1,291,000 acre-ft per year).

Extremes.--Maximum discharge during year, 33,000 cf3.Feb. 24 (gage height, 17.60 ft); minimum, 36 cfs Oct. 6.

1940-57: Maximum discharge, 173,000 cfs Dec. 22, 1955 (gage height, 42.7 ft, from 

floodmarksj, from rating curve extended above 52,000 cfs on basis of slope-area determination of peak flow; minimum observed, 9 cfs Oct. 17, 1944.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

No regulation or diversion. Records of chemical analyses for the water year 1957 are 

given in WSP 1523.

Revisions. WSP 1395: Drainage area.

Rating tables, water year 1956-57 (gage height,_in feet, and discharge,

23, Apr. 8-10,

In cubic feet per second)

(Shifting-control method used Jan. 29 to Feb.

Apr. 15 to May 17)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

1.8 37

2.1 110

2.5 275

3.0 570

4.0 1,560

7.0 5,740

11.0 13,900

16.0 27,800

2.4

2.6

2.7 

2.9 

3.5

58

100

135

260

740

4.5 1,720

7.0 5,720

11.0 13,900

14.0 21,900

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

ZZ

23

24

25

26

27

28 

29

30

31

Total

Mean

Ac-ft

Oct.

39

39

39

39

*39

42

37

39

41

110

157

194

82

67

65

57

60

53 

51

44

50

50

67

114

124

235

550

374 

320

7.700

2 920

13,798

445

27,370

Nov.

1.300

870

672

564

486

416

*364

320

285

262

239

221

203

185

173

165

161

153 

149

142

134

128

124

120

117

114

110

107 

107

104

8,495

283

16,850

Dec.

101

101

98

107

153

239

*257

216

177

181

320

531

591

498

410

342

300

270 

244

221

203

190

177

165

157

149

145

138 

134

131

128

7,074

228

14,030

Jan.

124

124

124

117

114

110

TTo

142

194

190

248

1,570

3,510

4,470

*7,300

*3,630

2,120

1,430 

1,520

10.500

5,580

3,280

2,320

1,850

1,560

1,350

1,120

977 

870

720

57,857

1,866

114,800

Feb.

712

980

890

783

729

704

*696

1,020

1,360

1,190

1,040

940

890

840

774

780

672

640 

619

612

774

1,690

10,300

*27.100

20,300

18,500

13,200

7,720

116,395

4,157

230,900

Mar.

5,020

3,490

3,120

5,090

12,600

12,900

8,040

6,310

6,350

5,090

5,630

14.900

10, 900

7,320

*8,620

7,460

6,420

4,930 

3,900

3,140

2,580

2,110

1,810

1,580

1,440

1,330

1,210

1,120 

1,256

1,780

1,640

159,080

5,132

315,500

Apr.

1,620

1,400

1,310

1,220

1,140

1,080

1,030

973

928

*883

a865

a855

a945

a3,400

2^390

1,820

2,110

2,400 

,940

,720

,540

,390

,260

1,170

1,090

1,020

955

910 

856

*812

41,032

1,368

81,390

May

804

1,430

1,200

955

874

812

772

764

788

756

764

724

732

874

838

764

1,270

*14.100 

10,400

7,490

5,320

3,720

2,860

2,300

1,900

1,620

1,440

1,300 

1,180

1,100

*1,020

70,871

2,286

140, 600

June

a950

a890

8840

a790

a750

8710

8670

8640

612

596

564

532

524

508

8480

8470

8450

8440 

8410

8390

372

356

340

332

*308

246

168

'239 100 

232

14,909

497

29,570

July

'516" 225

211

204

197

184

174

174

162

162

157

152

152

162

168

157

140

135 

131

127

127

123

119

*119

115

112

109

109 

106

103

100

4,634

149

9,190

Aug.

 §7 97

95

92

92

92

95

92

92

90

90

87

85

85

83

83

80

78 

76

76

74

73

73

74

73

69

67

S§

69

69

2,536

81.8

5,030

Sept.

71

69

64

* 64

64

65

64

64

*64

64

64

64

64

65

65

67

67

67 

65

65

64

64

64

64

64

131

697

355 

348 

372

3,762

125

7,460

Calendar year 1956: Max 42,900 Min 37 Mean 1,822 Ac-ft 1,323,000

Water year 1956-57: Max 27,100 Min 37 Mean 1,371 Ac-ft 992,700

Peak discharge (base, 28,000 efs). Feb. 24 (1 p.m.) 55,000 cfs (17.60 ft).____________

* Discharge measurement made on this day.~

a No gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

Eel River at Aider-point.
556 EEL RIVER BASIN

Eel River at Scotia, Calif.

Location. Lat 40°29 1 30", long 124°05'55", in SW^ sec. 5, T. 1 N. ,.R. 1 E., near center 

of span in left pier of bridge on U. S. Highway 101, 0,5 mile north of Scotia and 

6 miles upstream from Van Duzen River.

Drainage area. 3,113 sq mi.

Records available . December 1910 to February 1915, October 1916 to September 1957.

Gage. Water-stage recorder. Datum of gage is 36.15 ft above mean sea level, datum of 

1929. Prior to September 1934, staff gage at same site and datum. September 1934 to 

Dec. 12, 1940, wire-weight gage at same site and datum.

Average discharge . 44 years (1911-14, 1916-57), 6,646 cfs (4,812,000 acre-ft per year).

Extremes. Maximum discharge during year, 153,000 cfs Feb. 25 (gage height, 36.11 ft); 

minimum, 82 cfs Oct. 3-5, 8, 9.

1910-15, 1916-57: Maximum discharge, 541,000 cfs Dec. 22, 1955 (gage height, 

61.90 ft), from rating curve extended above 200,000 cfs by logarithmic plotting; minimum observed, 10 cfs Aug. 12-14, 1924.

Remarks.--Records good. Plow slightly regulated by Lake Pillsbury (see p. 543) and by 

diversion through Potter Valley powerhouse (see p. 545). Records of chemical analyses 

for the water year 1957 are given in WSP 1523.

Revisions (water years).--WSP 931: 1938. WSP^1345: Drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Jan. 26 to Feb. 23)

Oct. I to Jan. 15 Jan. 15 to Sept. 30

8.4

S.6

9.0

10.0

11.0

70

160

460

1,480

2,990

12.0

13.0

16.0

20.0

5,100

7,810

19,500

38,700

8.2

8.6

9.0

9.5

10.0

11.0

12.0

80

320

680

1,290

2,090

3,720

5,630

14.0

16.0

20.0

25.0

30.0

35.0

11,400

19,500

41,200

69,900

102,000

142,000

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

94

86

* 82

52

82

86

86

82

82

*98

140

230

293

237

167

155

155

155

155

150

140

135

202

237

258

380

740

990

1,010

11,600

ISjOOO

36,389

1,174

72,180

Nov.

6.980

4,260

3,150

2,310

1,880

1,590

1,340

1,160

*1,050

950

880

810

740

694

640

622

604

568

541

523

505

478

460

436

428

420

412

404

388

372

35,595

1,186

70,600

Dec.

380

372

364

372

428

514

613

640

622

622

1,180

2,740

4.190

3^080

2,120

1,640

1,370

1,200

1,070

*990

900

830

780

730

685

649

631

604

577

541

532

31,966

1,031

63,400

Jan.

514

505

487

478

460

452

256- 444

577

604

820

2,610

16,200

21,100

27,800

16,000

*8,860

6,280

5,140

28.700

28,400

13,300

8,440

6,450

5,450

4,820

4,210

3,750

3,360

3,050

2,630

222,387

7,174

441,100

Feb.

2,510

3,100

3,240

2,840

2,440

2,270

*2.250

3,000

4,280

4,200

3,640

3,300

3,080

3,190

3,640

3,480

3,350

3,280

3,190

3,030

3,130

3,680

17,000

102,000

130,000

82,200

73,500

42,000

516,800

18,460

*1,025

Mar.

26,900

18,200

14,400

14,000

* 44, 500

61 . 200

46,500

31,300

26,300

22,500

19,100

44,900

45,000

30,400

30,900

*32,800

27,500

22,800

17,500

14,400

12,100

9,880

8,410

7,380

6,770

6,380

6,000

5.590

5,790

8,050

8,100

675,550

21,790

tl,340

Apr.

8,590

7,440

6,520

6,020

5,650

5,300

5,100

4,700

*4,360

4,160

3,960

3,890

4,110

9,570

14.500

9,040

9,070

12,000

10,700

8,710

7,630

6,800

6,140

5,390

4,920

4,580

4,300

4,180

4,030

5.870

195,230

6,508

387,200

May

*3,860

5,350

6,550

5,240

4,370

4,030

3,940

5.770

3,770

4,470

4,250

3,980

3,840

4,130

4,270

4,030

3,890

30,000

*48.400

36,700

25,200

18,500

14,400

11,200

9,040

7,680

6,820

6,070

5,280

4,800

4,540

302,370

9,754

599,700

June

4.250

3,920

3,700

3,460

3,190

2,730

2,600

2,490

2,360

2,230

2,110

2,010

1,910

1,800

1,740

1,660

1,610

1^510

1,420

1,320

1,260

1,180

1,150

1,100

1,030

1,000

900

812

735

15oT

57,988

1,933

115,000

July

790

790

757

735

702

670

640

600

571

562

553

526

499

526

499

490

481

472

454

445

427

409

384

384

376

336

*344

344

344

328

314

15,752

508

31,240

Aug.

308

308

290

302

290

284

278

278

272

266

254

260

260

260

260

254

248

236

230

212

206

200

194

188

182

182

176

170

164

164

158

7,334

237

14,550

Sept.

158

152

152

146

146

146

140

140

134

134

134

128

*122

116

122

128

128

122

116

110

116

104 10"4

104

104

218

900

2,330

2.800

1,506

10,954

365

21,730

Calendar year 1956: Max 188,000 Mln 82 Mean 8,718 Ac-ft 6,328,000

Water year 1956-57: Max 130,000 Mln 82 Mean 5,776 Ac-ft 4,182,000

Peak discharge (base, 61,000 cfs). Feb. 25 (4 a.m.) 153,000 cfs (36.11 ft); Mar. 6 (12 m.) 

64,200 cfs (24.08 ft).

* Discharge measurement made on this day.

* Expressed In thousands.
EEL RIVER BASIM 557

Van Duzen River near Dinsmores, Calif.

Location. Lat 40°29'15", long 123°37'50", in SE^- sec. 5, T. IN., R. 5 E., on right bank 

1.4 miles west of Dinsmores, 2.0 miles upstream from South Pork, and 8.9 miles east of 

Bridgeville.

Drainage area. 80.2 sq mi.

Records available. August 1953 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 2,320 ft (from topographic map).

Extremes. Maximum discharge during year, 8,470 cfs Feb. 24 (gage height, 11.05 ft); minimum not determined.

1953-57: Maximum discharge, 21,400 cfs Dec. 22, 1955 (gage height, 19.25 ft), from 

rating curve extended above 13,000 cfs by logarithmic plotting; minimum, 2.3 cfs 

Sept. 23-26, 1955.

Remarks. Records good except those for periods of no -gage-height record, which are fair. 

No regulation or diversion.

Rating tables, water year 1956-57 (gage height, in feet, and discharge. 

In cubic feet per second)

Oct. 30 to Feb. 24 Feb. 24 to Sept. 30

1.0 

1.4

1.0

5.0

12

23

51

119

0.7 

.8 

1.0 

1.5 

2.0 

2.5 

3.0 

4.0 

6.0 

9.0 

11.0

15

27

62

161

275

435

700

1,380

2,980

5,880

8,400

0.8 

.9 

1.0 

1.2 

1.6 

2.0 

2.5 

3.0 

4.0 

6.0 

8.0

0.6

4.5

17

60

152

254

430

670

1,320

2,980

4,800

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

-3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

a3.0

*3.0

3.5

4.0

4.0

5.6

6.2

6.2

6.2

6.2

6.2

5.6

5.6

6.2

5.6

5.6

5.6

6.2

12

22

23

109

98

61

56

2.360

503

3,350.5

108

6,650

Nov.

315 252"

223

178

136

»106

88

73

62

54

49

43

40

37

35

34

34

34

30

27

27

24

24

23

22

~Z5 20

20

20

20

2,110

70.3

4,190

Dec.

20

19

15

19

24

24

»22

20

20

44

385

315

327

233

157

114

90

76

64

56

52

47

43

40

38

35

34

32

30

30

29

2,491

80.4

4,940

Jan.

27

27

26

24

23

22

74

27

24

23

34

»103

846

608

848

466

312

235

207

1.660

670

407

306

240

205

167

136

120

100

100

82

8,099

261

16,060

Feb.

84

102

86

76

*69

66 54

196

182

142

126

126

256

309

295

288

278

256

230

242

462

550

3,090

7.150

3,320

4,440

*1,930

940

-

25,375

906

50,330

Calendar year 1956: Max 9,500 Min -

Mar.

694

570

1,200

1,900

a2,500

33,000

a2,200

al,600

al,300

al,OOO

al,200

a2,500

al,70O

*al,300

1,460

1,100

922

778

676

600

495

422

370

336

358

362

336

321

45T

466

590

32,707

1,055

64,870

Apr.

530

422

378

336

301

276

238

215

197

176

»164

179

209

1.080

500

414

462

550

554

394

343

301

268

241

220

199

181

174

159

152

9,813

327

19,460

May

154

555

292

231

199

181

164

164

184

184

162

157

189

279

202

166

*291

2.650

1,760

1,400

984

712

550

450

378

321

279

249

228

207

189

13,941

450

27,650

June

174

m

154

.145

135

128

123

116

112

107

103

98

94

91

89

87

82

75

73

71

67

64

60

55

53

51

48

46

44

42

2,751

91.7

5,460

J-uly

40

35

38

33

33

31

29

27

25

23

23

21

23

27

29

25

21

19

17

15

14

14

12

12

11

9.7

9.7

*9.7

8.4

7.2

6.1

650.8

21.0

1,290

Aug.

6.1

6TT

6.1

6.1

6.1

6.1

6.1

6.1

6.1

5.2

5.2

5.2

5.2

5.2

5.2

4.5

4.5

4.5

4.5

4.5

4.5

4.0

4.0

4.0

4.0

4.0

3.5

TT5

3.5

3.5

3.5

150.6

4.86

299

Sepu.

3.5

3.5

3.5

3.5

*3.5

3.5

3.5

3.5

3.5

5.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

11

271

T55

82

75

648.1

21.6

1,290

Mean 332 Ac-ft 241,300

Water water year year 1956-57: iabb-s>7: Max Max 7,150 /,lbO Min Min - - Mean Mean 280 ZbO Ac-ft AC-IE 202,500 202,bOO

Peak discharge (base, 3,40O cfs).--Oct. 30 (6 a.m.) 4.600 cfs (7.80 ft); Feb. 24 (2:30 p.m.) 

8,470 cfs (11.05 ft); May 18 (5:30 a.m.) 4,310 cfs (7.48 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

station near Bridgeville.
558 EEL RIVER BASIN

Van Duzen River near Bridgeville, Calif.

Location.--Lat 40°27'50", long 123°51'25", in E| sec. 17, T. 1 N., R. 3 E., on downstream 

side of right pier of bridge on State Highway 36, 0.3 mile downstream from Pip Creek, 

0.5 mile upstream from Rogers Creek, and 4 miles west of Bridgeville.

Drainage area. 214 sq mi.

Records available . October 1950 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 400 ft (from topographic map).

Average discharge . 7 years, 941 cfs (681,300 acre-ft per year).

Extremes. Maximum discharge during year, 19,000 cfs Feb. 24 (gage height, 14.16 ft); 

minimum, 8.6 cfs Oct. 6-9.

1950-57: Maximum discharge, 43,500 cfs Dec. 22, 1955 (gage height, 21.3 ft, from 

floodmarks), from rating curve extended above 15,000 cfs on basis of slope-area determination of peak flow; minimum, 6.2 cfs Sept. 23, 24, 1951.

Remarks. Records good. No storage or large diversion.

Rating tables, water year 1956-57 (gage height, in feet, and discharge,

(Shifting-control method used Feb. 23-25)

2.5

2.6

2.8

3.0

3.5

Oct.

8

14

31

58

172

1 to Feb. 24

4.1

4.8

7.0

9.5

13.0

390

850

3,300

7,440

16,900

2.4

2.6

2.8

3.0

3.3

3.6

Feb. 24

10

19

33

55

105

189

to Sept.

4.0

4.5

5.0

6.0

8.0

12.0

30

345

640

1,050

2,OOO

4,500

12,100

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

9.8

9.8

9.2

9.2

9.2

*9.2

575" 8.6

9.2

13

28

27

20

16

15

14

13

15

16

15

14

16

71

87

89

335

372

244

303

5.590

1,596

8,985.8

290

17,820

Nov.

1.160

913

594

440

325

*261

184

181

156

136

122

110

98

89

83

80

83

85

74

67

63

60

58

58

56

55

54

50

50

49

5,794

193

11,490

Dec.

46

46

43

45

71

*85

72

62

60

309

1,810

1,690

2.000

1,030

614

430

350

337

290

248

215

187

167

151

139

129

117

110

105

98

94

11,153

360

22,120

Jan.

89

87

83

80

76

71

7T

120

110

91

*260

785

2,420

2,640

2,900

1,590

994

690

1,120

4,830

2,040

1,280

895

722

600

495

415

376

329

298

283

26,840

866

53,240

Feb.

432

484

363

317

290

*279

3?4

*842

730

543

456

420

641

802

714

634

581

537

468

462

818

1,060

4,530

*15.900

7,950

 10,600

*4,880

2,640

-

58,697

2,096

116,400

Calendar year 1956: Max 24,900 Min 8.6

Mar.

1,840

1,390

1,470

2,890

5,190

5,650

3,380

2,300

2,600

1,970

2,850

6.450

3,460

2,470

3,910

2,840

2,600

2,060

1,760

*1,530

1,310

1,080

920

824

848

84O

760

712

1,T60~

1,260

1,690

69,994

2,258

138,800

Apr.

1,530

1,180

987

872

752

672

584

577

446

405

*376

400

536

2.610

1,366

1,010

1,270

1,700

1,280

1,050

872

752

640

570

500

446

405

376

354

324

24,836

828

49,260

May

332

9T5

744

521

440

395

354

354

395

452

400

390

470

832

577

*458

727

6.060

4/550"

3,390

2,440

1,770

1,380

1,120

904

752

640

577

464

415

376

33,637

1,085

66,720

June

336

3156"

282

262

239

220

206

192

183

170

160

146

137

132

127

119

110

103

99

95

89

85

81

76

72

68

65

63

61

58

4,342

145

8,610

July

55

5T

51

50

47

44

43

41

42

40

39

38

38

42

44

41

38

36

34

32

30

30

29

28

28

27

26

26

26

24

24

1,144

36.9

2,270

Aug.

*23

23

21

21

21

22

22

21

22

21

21

20

20

20

20

19

18

18

18

18

16

17

16

16

16

16

16

16

16

TB" 15

584

18.8

1,160

Sept.

15

14

14

14

14

14

14

14

*T3" 13

13

14

14

14

14

14

14

14

14

14

14

14

14

13

13

51

704

32T

124

115

1,662

55.4

3,300

Mean 849 Ac-ft 615,900

Water year 1956-57: Max 15,900 Min 8.6 Mean 678 Ac-ft 491^100

Peak discharge (base, 9,100 cfs).--Oct. 3O (7 a.m.) 9,620 cfs (10.50 ft)j Feb. 24 (3 p.m.) 

19,000 cfs (14.16 ft); Mar. 12 (3:30 a.m.) 9,800 cfs (10.94 ft); May 18 (7 a.m.) 9,640 cfs 

(10.86 ft).

* Discharge measurement made on this day.
EEL RIVER BASIN 559

Yager Creek near Carlotta, Calif.

Location. Lat 40°34'10", long 124°03'10", in SE£ sec. 10, T. 2 N., R. 1 E., on right 

bank 0.6 mile upstream from Cooper Mill Creek and 2.3 miles north of Carlotta.

Drainage area. 127 sq mi.

Records available. August 1953 to October 1955, August 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 190 ft (from topographic map). Aug. 18, 

1953, to Dec. 22, 1955 (destroyed by flood), at site 0.2 mile upstream at different 

datum.

Extremes. Maximum discharge during year, 7,460 cfs Oct. 30 (gage height, 12.10 ft); minimum, 4.4 cfs Oct. 8, 9.

1953-57: Maximum discharge recorded, 28.000 cfs Dec. 22, 1955 (gage height, 17.4 ft, 

from floodmarks, site and datum then in use), frorti rating curve extended above 

8,200 cfs on basis of slope-conveyance study; minimum, that of Oct. 8, 9, 1956.

Remarks. Records good except those for Feb. 26 to Mar. 12, which are fair. No regulation 

or diversion.

Rating tables, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Feb. 27 to Mar. 4)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

2.9

3.1

3.4

3.S

4.1

4.5

5.0

4.4

S.5

17

35

54

99

187

5.5

6.0

7.0

8.0

9.0

12.0

296

445

870

1,530

2,560

7,300

4.3

4.4

4.5

4.7

5.0

5.4

4.7 7.2

11

23

50

104

6.0

6.5

7.0

8.0

9.0

225

420

680

1,420

2,560

Note. Same as preceding 

table above 9.0 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

L3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

4.S

4.8

4.8

4.8

4.6

4.6

4.6

4.6

4.6

*8.1

15

15 

11

9.0

7.8

7.4

7.0

7.2

7.6

7.4

7.2

6.7

26

34

21

104

122

72

65

5.170

885

4,657.6

150

9,240

Nov.

TSO" 680

298

205

146

110

86

71

*60

53

48

44 

41

39

37

39

79

92

60

50

44

41

39

36

34

32

32

30

30

28

3,064

102

6,080

Dec.

28

27

26

35

65

*92

79

65

71

902

*5 t 550

*2,55d 

3,310

1,300

745

501

366

282

230

191

163

137

117

104

91

80

72

65

60

56

54

15,389

496

30, 520

Jan.

52

49

48

46

44

42

13

93

95

77

*552

956 

1,600

2,460

1,970

1,090

711

515

1,310

5,050

1,980

1,040

720

574

501

410

348

515

277

246

226

25,420

755

46,450

Feb.

575

750

512

407

542

*501

505

*574

498

575

510

277 

506

294

252

222

195

175

154

167

400

591

1,540

.*6.510

3,050

3,990

1,810

1,040

-

25,316

904

50,210

Mar.

770

*620

704

2,330

3,540

3,240

1,380

758

990

598

1,930

4,050 

1, 710

968

1,900

1,220

1,070

704

669

*642

560

455

375

326

352

344

290

262 453"

515

1,080

34,815

1,123

69,050

Apr.

1,000

686

540

430

357

314

269

231

*209

193

180

180

193

983

505

384

573

1,080

686

545

435

357

302

258

228

207

191

178

164

154

12,012

400

23,830

May

*154

408

237

195

176

164

154

152

152

178

180

158 

168

214

170

152

282

1,910

*1,940

1,420

996

669

505

380

298

246

214

189

168

*152

140

12,521

404

24,840

June

127

TT5

106

101

96

90

84

81

74

69

67

64 

61

58

57

55

51

49

48

46

44

43

41

40

37

36

36

36

35

34

1,881

62.7

3,730

July

32

37

31

29

28

27

26

25

25

25

25

25 

24

25

25

24

22

22

21

20

20

20

19

18

18

17

*16

16

16

16

15

704

22.7

1,400

Aug.

15

14

14

14

14

14

14

13

13

12

12

11 

11

11

11

10

10

10

10

10

10

9.6

9.6

9.6

9.3

9.3

9.0

9.0

9.0

9.0

8.6

345.0

11.1

684

Sept.

S.6

8.6

8.2

8.2

7.9

7.9

7.9

7.9

7.9

7.9

7.6

7.6

*7.6

7.6

7.6

7.6

7.6

7.6

7.6

7.0

7.0

6.7

6.7

6.4

674

13

-63 114

35

25

437.6

14.6

868

Calendar year 1956: Max - Mln - Mean - Ac-ft -

Water year 1956-57: 1956-57: Max 6,310 Mln 4.6 Mean 359 Ac-ft 266,900 266,90___________

Peak discharge (base, 4,000 cfs). Oct. 30 (4 a.m.) 7,460 cfs (12.10 f t) j Dec. 11 (5 p.m.) 

6,790 cfs (11.68 ft): Jan. 14 (3:30 p.m.) 5,280 cfs (10.74 ft); Jan. 20 (11 a.m.) 7,220 cfs 

(11.95 ft); Feb. 24 (2 p.m.) 7,160 cfs (11.91 ft); Mar. 4 (9:30 p.m.) 7,430 cfs (12.08 ft);

Ma-n ______________________(12.08 n {T? (12 n pm!)7 m "\ 7 AXn /»f« Mp nR ft). ?* }

Discharge measurement made on this day.
560 JACOBY CREEK BASIN

Jacoby Creek near Freshwater, Calif.

Location. Lat 40°47'30", long 124°00'10", in NW^ sec. 30, T. 5 N., R. 2 E., on left bank 

300 ft downstream from unnamed tributary, 3.7 miles northeast of Freshwater, and 

6.5 miles southeast of Arcata.

Drainage area. 6.07 sq mi.

Records available . December 1954 to September 1957.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 800 ft (from 

topographic map).

Extremes . Maximum discharge during year, 516 cfs Dec. 11 (gage height, 3.95 ft); minimum, 0.6 cfs Sept. 24.

1954-57: Maximum discharge, 1,670 cfs Dec. 30, 1954 (gage height, 7.20 ft), from 

rating curve extended above 140 cfs on basis of slope-area determination at gage height 

6.75 ft; minimum, that of Sept. 24, 1957.

Remarks. Records fair. No regulation or diversion.

Rating table, water- year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

(Shifting-control method used Nov. 3-13)

0.6

.7

.9

0.6

1.2 

1.8

1.0

1.1

1.2 

1.4

2.6

4.2

7.7

18

1.7 

2.0 

2.5 

3.0

44

80

159

260

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

~0.8

.8

.8

*.8

.8

.8

.8

1.1

3.0

3.6

1.7

1.3

1.1

1.0

1.0

1.0

1.3

1.2

1.0

1.0

1.1

12

4.8

4.2

26

18

8.7

21

TO" 140 

301.5

9.73

598

Nov.

T2- 20

7.3

4.8

3.6

3.3

2.8

2.6

2.5

2.5

2.5

2.5

2.5

*2.4

2.5

4.4

17

12

7.7

6.1

4.8

4.4

4.2

3.8

3.4

3.0

2.8

2.7

2.5

2.4

154.8

5.16

307

Dec.

2.3

2.2

27?

5.0

13

12

9.7

7.3

7.3

*63

230

T45

200

69

37

24

17

14

11

9.7

8.7

7.7

6.5

6.1

5.7

5.4

5.0

4.8

4.4

4.4

4.2

943.6

30.4

1,870

Jan.

4.2

4.0

4.0

3.8

3.8

3.6

T75

17

13

11

17

29

52

*64

95

50

29

20

35

169

74

40

27

24

23

19

17

15

13

11

10

902.2

29.1

1,790

Feb.

50

52

31

21

16

13

12

14 *14

12

11

9.2

8.2

7.3

6.9

6.1

5.4

5.0

5.0

4.8

5.7

5.4

21

104

53

~S? 132

45

-

752.0

26.9

1,490

Mar.

30

21

30

149

*232

164

84

51

84

52

188

*237

TOT

61

56

52

41

32

26

23

20

17

15

14

48

33

24

18

32

35 

62

2,035

65.6

4,040

Apr.

50

3F

25

19

16

14

13

*11

10

9.5

9.0

8.5

9.0

21

15

13

11

18

16

13

12

10

9.5

8.5

8.0

7.5

7.5

7.0

7.0

6.5

419.5

14.0

832

May

*6.5

12

11

9.7

8.7

7.7

7.3

6.9

7.3

8.2

9.2

7.7

7.3

6.9

6.1

5.7

971

52

77

19

33

22

17

14

12

11

9.7

8.7

*7.7

7.3

6.9

464.9

15.0

922

June

B-TT 6.5

6.1

5.7

5.7

5.4

5.4

5.0

4.8

4.8

4.2

4.4

4.0

4.0

4.0

3.8

3.6

3.6

3.6

3.4

3.4

3.3

3.2

3.0

2.8

2.7

2.6

2.7

2.6

2.5

122.9

4.10

244

July

2.4

274

2.3

2.3

2.2

2.2

2.2

2.1

2.1

2.0

2.0

1.9

1.9

2.3

1.9

1.8

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.5

1.5

1.4

1^4

1.4

57.7

1.86

114

Aug.

1.3

1.3

1.3

1.4

174

1.4

1.4

1.4

1.4

1.3

1.2

1.2

1.2

1.3

1.3

1.2

1.2

1.2

1.2

1.2

1.1

1.0

T7I

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

37.1

1.20

74

Sept.

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.1

.O

.0

.1 * .1

.1

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.8

7S

.8

.8

2.5

3.5

T77

1.7

1.4

35.2

1.17

70

Calendar year 1956: Max 23O Mln 0.8 Mean 15.7 Ac-ft 11,36O

Water year1 1956-57: Max 237 Mln 0.8 Mean 17.1 Ac-ft 12,350

Peak discharge (base, 300 cfs).--Dec. 11 (2 p.m., 

(3.64 ft)j Mar. 11 ( 10 p.m.) 494 cfs (3.87 ft]

516 cfs (3.95 ft)j Mar. 4 (8 p.m.) 429 cfs

* Discharge measurement made on this day.

Note. No gage-height record Mar. 2O to Apr. 7, Apr. 9-30, May 2, July 21-29; discharge estimated 

on basis of 1 discharge measurement, recorded range In stage, and records for Little River near 

Crannell.
MAD RIVER BASIN 561

Mad River near Forest Glen, Calif.

Location. Lat 40°27'30", long 123°30'35", in SWi sec. 16, T. 1 N., R. 6 E., on right 

bank 0.7 mile downstream from Lamb Creek and 7.0 miles northwest of Forest Glen.

Drainage area. 144 sq mi.

Records available. June 1953 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 2,410 ft (from topographic map). Prior 

Eb Dec. 22, 1955, water-stage recorder at site 0.7 mile upstream at different datum. 

Jan. 13 to June 18, 1956, wire-weight gage at former site at datum 4.17 ft lower than 

former datum.

Extremes.--Maximum discharge during year, 9,890 cfs Feb. 24 (gage height, 10.73 ft); 

minimum, 1.6 cfs Sept. 23.

1953-57: Maximum discharge, 39,200 cfs Dec. 22, 1955 (gage height, 23.6 ft, from 

floodmarks, site and datum then in use), from rating curve extended above 8,100 cfs 

on basis of slope-area determination of peak flow; minimum, 1.3 cfs Sept. 12, 1955.

Remarks. Records good. No regulation or diversion. 

Revisions (water years1.--WSP 1395: 1954(M).

Rating tables, water year 1956-57 (gage height, in feet, and discharge, in 

(Shifting-control method used Mar. 11-25)

libic feet per second)

Oct. 1 to Mar

13

28

46

115

200

. 12

3.5 

4.0 

5.0 

6.0 

7.0 

8.0 

9.0 

10.0

370

660

1,420

2,350

3,350

4,450

5,870

8,030

12 to Sept. 30

1 3.2

4 3.6

4.3

5.0

6.0

7.0

190

345

660

1,040

1,730

2,740

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac-ft

Oct.

2.0

2.0

2.0 

2.0

2.0

*1.8

178

1.8

2.0

2.5

3.7

2.7

2.3

2.1

2.1

2.1

2.1

2.3 

2.3

2.3

2.3

2.3

4.6

4.0 

3.7

9.5

14

12

16

1,050 

453

1,615.3

52.1

3,200

Nov.

214

170

132 

100

79

*64

55

46

41

35

29

26

25

22

22

20

19

17 

14

13

13

13

13

12 

12

11

11

11

9.5

975

1,258.0

41.9

2,500

Dec .

9.5

8.4 

87?

9.5

12

12

 11

11

11

14

51

146

158

128

98

79

66

57 

49

43

39

33

31

28 

25

23

23

22

22

20 

19

1,266.8

40.9

2,510

Jan.

19

16

16 

16

14_

14

14

17

16

14

20

*99

906

*712

860

523

306

207 

235

1,610

738

426

284

214 

176

146

120

110

92

83

75

8,098

261

16,060

Feb.

79

83

70

*68

64

70

149

161

140

128

122

164

221

200

179

158

140 

128

120

179

263

1,440

7,110 

4,540

*4,120

*2 , 590

1,530

.

24,291

868

48,180

Mar.

1,020

738

967

2,580

*2,810

2,030

1,450

1,310

1,020

1,190

2,660

1,640

*1,280

1,520

1,350

1,220

1,060 

926

821

715

615

534

470 

426

385

345

309

35i

421

434

33,272

1,073

65,990

Apr.

480

421

337

305

277

253

229

211

194

»180

183

211

700

547

462

542

640

570

511

448

390

345

305 

269

241

218

197

183

169

10,391

346

20,610

May

172

353

218

190

176

166

166

176

172

166

162

172

214

211

186

*238

1,750 

1 , 500

1,470

1,140

865

695

570 

480

412

357

321

285

357

229

13,846

447

27,460

June

200

TsT

172 

158

146

134

122

117

106

98

93

88

83

78

76

71

67

60 

56

52

50

47

44

42 

38

35

32

33

31

32

2,541

84.7

5,040

July

27

2T

25 

22

21

20

20

18

17

15

14

14

12

14

14

12

11

9.4 

9.4

9.4

9.4

9.4

8.4

8.4 

7.5

7.5

7.5

*7.5

6.6 676-

6.6

415.6

13.4

824

Aug.

6.6

578

5 8

s!s

5.8

5.8

5.8

6.6

5.8

5.8

6.6

6.6

6.6

5.8

5.8

5.8

5.1

5.8 

5.8

5.1

5.1

5.1

4.4

3.9 

3.4

3.9

3.4

3.4

3.0

2.7 

27T

159.6

5.15

317

Sept.

2.

2.

2. 

2.

*2.

2.

2.

2.

2.

2.

2.

2.

2.

2 .

2 .

2.

2.

2. 

2.0

2.0

2.0

1.8

1.6

272 

2.0

5.8

23

17

11

10

124.1

4.14

246

Calendar year 1956 : Max 10,000 Min 1.8 Mean 361 Ac-ft 261,100

Water year 1956-57: Max 7,110 Min 1.6 Mean 267 Ac-ft 192,900

Peak discharge (base, 3,000 cfs).--Feb. 24 (2 p.m.) 9,890 cfs (10.73 ft); Mar. 6 (7 a.m.) 3,000 cfs 

(6.65 ft); Mar. 12 (7 a.m.) 5,290 cfs (7.22 ft).________________________________________

* Discharge measurement made on this day.
562 MAD RIVER BASIN

Mad River near Arcata, Calif.

Location. Lat 40°54 I 35", long 124°03 I 35", in NW£ see. 15, T. 6 N., R. 1 E. , on right

bank 100 ft upstream from bridge on U. S. Highway 299, 1.0 mile downstream from Warren 

Creek, and 2.8 miles northeast of Aroata.

Drainage area. 485 sq mi.

Records available. December 1910 to September 1913, August 1950 to September 1957.

Gage. Water-stage recorder. Datum of gage is 17.79 ft above mean sea level, datum of 

1929, supplementary adjustment of 1956. December 1910 to September 1913 staff gage 

at site 0.1 mile upstream at different datum. Aug. 15, 1950, to July 23, 1956, waterstage recorder at site 0.6 mile upstream at datum 6.00 ft higher.

Average discharge. 9 years (1911-13, 1950-57), 1,641 cfs (1,188,000 acre-ft per year).

Extremes. Maximum discharge during year, 24,500 cfs Feb. 24 (gage height, 14.49 ft); minimum, 24 cfs Oct. 1.

1910-13, 1950-57: Maximum discharge, 77,800 cfs Dec. 22, 1955 (gage height, 

27.3 ft, site and datum then in use), from rating curve extended above 34,000 cfs on 

basis of slope-area determination of peak flow; minimum, 16 cfs^Sept. &, 9, 1951.

Remarks. Records good. Since 1938, approximately 5.4 cfs diverted daily above station 

for municipal supply of city of Eureka.

Revisions. WSP 1215: Drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and discharge,

In cubic-feet per second)

(Shifting-control method used Dec. 23 to Jan. 11, 

Mar. 18 to Apr. 3, May 18-29)

2.8 

3.0 

3.2 

3.6 

4.2

Oct. 1 to Dec. 11

22 4.7

33 5.3

48 6.3

9.0 

11.0

Dec. 12 to Sept. 30

208

400

810

1,980

6,400

11,300

3.0 

3.2 

3.6

20

28

40

80

210

4.4

5.6

7.4

10.0

13.0

620

1,530

3,700

8,600

18,300

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Ac-ft

Oct.

24 

24

25

24

*25

25

25

25

26

35

46

57

60

51

46

42

40

41

39

39

41

42

69

187

161

934

1,090

636 

470

7.910 

4,360

16,619

536

32,960

Nov.

2.220 

1,700

1,170

846

643

480

385

330

286

254

228

211

196

*185

177

181

250

338

257

217

194

183

176

166

161

153

150

144 

141

155

12,157

405

24,110

Dec.

134 

128

127

153

298

445

395

294

247

966

»9.210

*7,450

8,450

4,250

*2,400

1,660

1,290

1,070

911

792

701

614

560

500

456

410

375

345 

320

295 

272

45,518

1,468

90,280

Jan.

250 

230

*210

203

196

19S" 186

415

512

425

463

1,140

3,040

3,350

4,990

3,380

*2,120

1,570

1,770

10.400

5,620

2,900

*2,080

1,700

1,540

1,360

1,160

1,020 

911

813

750

54,900

1,771

108,900

Feb.

1,280 

1,950

1,330

1,070

932

841

799

1,050

*1,210

1,070

953

883

967

1,300

1,290

1,250

1,170

1,090

988

911

1,230

1,790

2,620

15,600

16.200

14,200

10,300

*5,810

90,084

3,217

178,700

Mar.

4,000 

2,940

2,880

6,040

14,100

13,400

8,410

5,500

5,210

4,220

8,750

16.500

*8,310

5,610

5,640

5,610

4,530

3,940

3,380

3,030

2,640

*2,230

1,940

1,720

1,940

2,090

1,790

1.610 

2,020

2,690 

4,010

156,680

5,054

310,800

Apr.

4.020 

2,910

2,310

1,890

1,600

1,430

1,260

1,120

*1,020

946

876

855

904

,210

,090

,580

,550

,640

,350

,000

,670

,420

,280

,140

,040

946

883

820

757

708

46,225

1,541

91,690

May

674 

*911

1,040

855

750

722

662

638

656

736

729

674

674

841

799

729

736

5,790

8.510

*7 , 000

5,230

3,700

2,760

2,140

1,720

1,460

1,260

1,130 

1,000

918 

841

56,085

1,809

111,200

June

764 

701

650

614

566

536

500

478

445

420

395

380

360

340

330

310

290

272

259

246

254

222

206

200

189

178

172

168 

164

154

10,743

358

21,310

July

147 

144

140

125

125

122

116

110

104

101

101

98

89

101

104

95

89

73

73

71

73

71

66

64

62

59

57

57 

*55

54 

52

2,798

90.3

5,550

Aug.

40 

40

47

50

48

59

59

42

42

40

39

39

39

38

56

56

35

35

36

34

33

33

32

50

32

32

30

30 

39

40 

28

1,153

37.2

2,290

Sept.

26 

26

28

32

30

27

26

26

26

26

*26

26

26

32

26

26

26

26

26

27

27

26

25

25

27

39

106

238 

T6T

125

1,359

44.6

2,660

Calendar year 1956: Max 32,400 Mln 23 Mean 1,594 Ac-ft 1,157,000

Water year 1956-57: Max 16,500 Mln 24 Mean 1,354 Ac-ft 980,400

Peak discharge 

24,500 cfs 

(15.00 ft)

956-57: Max 16,500 Mln 24 Mean 1,354 Ac-ft aBO,4UO_____________

ge (base, 14,000 cfs). Dec. 11 (5:30 p.m.) 17,100 cfs (12.70 ft); Feb. 24 (10 p.m.)

(14.49 ft); Feb. 26 (3 p.m.) 19,700 cfs (13.36 ft); Mar. 5 (l a.m.) 18,300 cfs 

; Mar. 11 (l2 p.m.) 21,100 cfs (15.70 ft).__________________________________

* Discharge measurement made on this day.
LITTLE RIVER BASIN 563

Little River at Crannell, Calif.

Location. La t 41°00'40", long 124°04'50", in NE^ sec. 8, T. 7 N. , R. 1 E., on right 

bank at Crannell, 0.5 mile upstream from Coon Creek and 9.1 miles north of Arcata.

Drainage area. 44.3 sq mi.

Records available . October 1955 to September 1957.

~Gage . Water-stage recorder. Datum of gage is 17.62 ft above mean sea level, datum of 

Extremes . Maximum discharge during year, 9,300 cfs Mar. 11 (gage height, 9.9o ft), from 

rating curve extended above 2,700 cfs by logarithmic plotting; minimum, 3.3 cfs 

Oct. 6-9.

1955-57: Maximum discharge, that of Mar. 11, 1957; minimum, 3.3 cfs Sept. 27-30, 

Oct. 6-9, 1956.

Flood of Jan. 17, 18, 1953, reached a stage of 15.7 ft, observed by an employee 

of Hammond Lumber Co.

Remarks . Records good. No storage or diversion above station.

Rating tables, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

0.9

1.0

1.1 

1.2. 

1.3 

1.6

Oct. 1 to Dec. 11 Dec. 11 to Sept. 30

133

275

475

1,010

1,700

2,550

1.1

1.2

1.3 

1.5 

1.7 

2.0

4.4

8.4

15

34

61

119

2.4 

3.0 

4.0 

5.0 

7.0

235

490

1,060

1,790

3,650

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11 

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

3.6 

3.6

3.6

3.6

*3.6

3.3 373-

3.3

4.7

17

23

12

8.1

6.6

5.6

4.6

5.1

7.1

8.1

6.1

6.1

6.1

21

18

26

146

104

58

76

739

292

1,628.1

52.5

3,230

Nov.

167 

TT6

80

61

49

41

36

31

29

25

24 

22

21

*20

20

25

71

56

40

30

26

24

22

20

19

17

18

17

16

IS

1,159

38.6

2,300

Dec.

16 

T5

16

31

109

127

114

73

61

338

2,510 

1,170

*1,590

580

318

218

163

132

108

95

89

77

71

66

61

57

54

52

50

47

47

8,256

266

16,380

Jan.

46 

43

43

40

40

37

43

85

89

72

71 

112

168

*171

520

290

174

129

271

969

520

298

214

218

218

200

166

142

119

104

93

5,705

184

11,320

Feb.

233 

270

180

144

119

101

101

134

*119

106

93 

87

85

81

75

69

66

63

61

60

72

85

159

688

378

1,820

65B

378

-

6,485

232

12,860

Calendar year 1956: Max 4,370 Min 3.3

Mar.

252

188

315

1,190

*1,430

1,200

766

485

525

390

5,030 

*2,420

952

595

635

530

382

282

224

194

168

147

132

122

455

282

191

155

278

290

525

18,680

603

37,050

Apr.

410 

TTB

210

*171

144

132

112

101

93

87

81 

79

81

180

136

106

97

158

132

115

99

87

77

72

67

63

60

57

53

51

3,589

120

7,120

May

*50 

72

58

51

47

44

43

44

43

44

44 

40

44

54

44

42

130

696

646

354

218

163

129

110

97

87

81

74

*69

67

63

3,748

121

7,430

June

fi

53

51

50

47

44

43

40

38

35 

37

34

34

33

30

28

28

28

27

24

24

23

23

22

21

20

20

20

19

1,007

33.6

2,000

July

19 

19

18

17

16

16

15

14

14

14

13 

13

15

28

23

16

14

13

13

13

13

13

13

12

12

11

11

10

*10

ir~9.7

445.7

14.4

884

Aug.

~5.7 10 

9.1

9.7

10

10

9.7

9.1

9.1

8.4

8.0 

8.0

7.6

7.6

7.6

7.6

7.6

7.6

8.0

7.6

7.6

7.6

7.2

7.2

7.2

7.2

6.8

6.8

6.4

674

6.4

248.8

8.03

493

Sept.

6.4 

6.4

6.4

6.0

5.6

5.6

5.6

5.6

*5.6

5.6

5.6 

5.6

5.6

5.6

6.0

6.0

6.0

5.6

5.6

5.2

178- 4.8

5.2

4.8

4.8

10

27

13

9.1

8.0

207.1

6.90

411

Mean 159 Ac-ft 115.200

Water year 1956-57: Max 3,030 Min 3.3 Mean 140 Ac-ft 101J500

Peak discharge (base. 1,500 cfs).--Dec. 11 (3 p.m.) 6,850 cfs (8.90 ft); Feb. 26 (8 a.m.) 3,470 efs 

(6.85 ft); Mar. 4 (9 p.m.) 5,610 efs (6.97 ft); Mar. 11 (10 p.m.) 9.300 efs (9.96 ft).

* Discharge measurement made on this day.

510529 O - 59 - 37
564 REDWOOD CREEK BASIN

Redwood Creek near Blue Lake, Calif.

Location,--Lat 40 0 54'2Q", long 123°48'55", in NE£ sec. 15, T. 6 N., R. 3 E., on right 

bank"400 ft upstream from Lupton Creek and 9.1 miles east of town of Blue Lake.

Drainage area. 67.5 sq mi.

Records available.--June 1953 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 850 ft (from topographic map).

Extremes. Maximum discharge during year, 5,890 cfs Mar. 11 (gage height, 9.28 ft); minimum, 6.4 cfs Oct. 7, 8.

1953-57: Maximum discharge, 12,100 cfs Dec. 21, 1955 (gage height, 13.68 ft), from 

rating curve extended above 5,800 cfs by logarithmic plotting; minimum, 5.4 cfs 

Sept. 5, 1955.

Flood of Jan. 17, 1953, reached a stage of 15.3 ft, from floodmarks.

Remarks. Records good. No regulation or diversion.

Rating tables, water year 1956-57 (gage height. In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Nov. 1 to Dec. 20, 

Dec. 50 to Jan. 10, Jan. 13-19)

Oct. 1 to Feb. 26 Feb. 26 to Sept. 30

1.4 

1.6 

1.8 

2.0 

2.3

3.0 245

4.0 565

5.0 1,080

7.0 2,920

1.3

1.4 

1.6 

1.9 

2.4

5.0

10

70

180

3.0 400

4.0 850

5.0 1,430

7.0 2,950

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Tota2

Mean

Ac-It

Oct.

7.4

7.4

7.0

7.0

6.7

6.7

6.4

*?74

7.0

15

26

14

11

10

9.4

9.0

8.7

11

12

9.7

9.4

9.4

97

32

72

222

154

83

227

1.780 

420

3,303.6

107

6,550

Nov.

298

218

172

148

124

106

92

79

69

61

54

48

*45

43

40

48

81

72

57

49

44

40

37

35

33

31

30

28

27

26

2,235

74.5

4,430

Dec.

24

24

23

40

57

46

38

36

37

213

*1.270

966

1,010

*585

410

322

272

238

208

185

170

150

140

128

122

112

104

96

90

85 

78

7,279

235

14,440

Jan.

71

*69

68

66

63

61

76

96

83

81

136

218

565

469

565

*399

326

288

622

1.840

695

458

361

313

ESO

252

232

220

208

196 

192

9,568

309

18,980

Feb.

287

248

218

199

189

*183

196

238

213

198

187

183

228

240

238

242

248

238

220

225

343

316

697

2.510

1,340

2,260

1,420

974

-

14,278

510

28,320

Mar.

755

610

715

1,750

2,440

2,350

1,600

1,150

1,110

950

2,620

*2.870

1,770

1,290

1,280

1,010

870

745

665

605

544

*476

428

404

480

460

428

408

480

464 

876

3E.603

1,052

64,670

Apr.

725

568

500

444

400

368

324

*284

260

240

231

234

248

576

372

320

328

396

388

344

308

272

252

234

216

*204

195

186

178

171

9,768

326

19,370

May

173

216

189

173

163

156

151

149

149

154

158

144

TBT

161

146

139

184

877

1.070

*880

665

480

380

308

256

225

204

189

173

166 

158

8,790

284

17,430

June

146

TST

132

125

119

117

112

108

102

98

94

94

90

88

88

80

76

70

68

67

65

64

60

57

56

53

50

50

47

47

2,560

85.3

5,080

July

44

44

43

40

39

36

36

35

35

34

33

33

33

36

34

32

30

29

28

27

26

25

24

24

23

23

22

21

*20

19 

19

947

30.5

1,880

Aug.

18

Ts

17

17

17

18

18

17

17

16

16

16

16

15

15

14

14

13

13

12

12

12

12

12

11

11

11

11

11

11 

11

442

14.3

877

Sept.

10

9.5

9.5

9.0

9.0

9.0

9.0

9.0

8.5

8.0

*8.0

8.5

8.5

8.5

8.5

9.0

9.0

9.0

8.5

8.5

8.0

8.0

7.5 TTB"

7.5

22

76

33

22

19

387.0

12.9

768

Calendar year 1956: Max 5,740 Min 6.4 Mean 311 Ac-ft 225,500

Water year 1956-57: 1956-57'. Max 2,870 Mln 6.4 Mean 252 Ac-ft 182,800 182,80___________

Peak discharge (base, 1,900 cfs).--Oct. 30 (2:30 a.m.) 3,100 cfs (7.16 ft); Dec. 11 (3 p.m.) 

2,530 cfs (6.63 ft); Jan. 20 (1:30 a.m.) 2,890 cfs (6.97 ft); Feb. 26 (10 a.m ) 3,370 cfs 

(7.41 ft); Mar. 4 (9:50 p.m.) 4.870 cfs (8.55 ft); Mar. 11 (l p.m.) 5,890 cfs J9.2S ft).

_________________________ 

* Discharge measurement made on this day.
REDWOOD CREEK BASIN 565

Redwood Creek at Orick, Calif.

Location. Lat 41°17'20", long 124°03'30", in NE£ sec. 4, T. 10 N., R. 1 E., on downstream 

side of left pier of bridge on U. S. Highway 101 at Orick, 0.9 mile downstream from 

Prairie Creek.

Drainage area. 278 sq mi.

Records available.--September 1911 to August 1913, October 1953 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 10 ft (from topographic map). Sept. 10, 

1911, to Aug. 28, 1912, chain gage and Aug. 29, 1912, to Aug. 9, 1913, staff gage, at 

same site at different datum.

Extremes. Maximum discharge during year, 24,100 cfs Mar. 12 (gage height, 18.48 ft); min-- 

imum, 18 cfs Oct. 6.

1911-13, 1953-57: Maximum discharge, 50,000 cfs Dec. 22, 1955 (gage height, 

23.95 ft); minimum, 10 cfs Sept. 22-24, 1911.

Flood of Jan. 18, 1953, reached a stage of 23.95 ft, from floodmarks (discharge, 

50,000 cfs).

Remarks. Records fair. No regulation or diversion.

Rating tables, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Oct. 1 to Nov. 8, Nov. 13 to Dec. 11, 

Dec. 20 to Jan. Q, Mar. 4, 5, Apr. 28 to May 17, May 19-28)

Oct. 1 to Mar. 5 Mar. 5 to Sept, 30

5.3 

5.7 

6.5 

7.5

17

52

104

280

630

8.5

10.0

12.0

13.0

1,330

3,150

6,900

9,200

6.2

6.3

6.5 

7.0 

8.0

19

26

38

75

230

7OO

9.0

11.0

13.0

15.0

17.0

1,550

4,400

8,330

13,300

19,300

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

15 

14

15

16

17

18

19 

20

21

22

25

24

25

26

27 

28

29

50

31

Total

Mean

Ac-ft

Oct.

21 

21

*21

21

21

19

T9

19

20

54

108

99

71 

48

40

37

36

50

48 

42

41

41

137

189

214

1,090

778 

438

385

7,170

3,210

14,508

468

28,780

Nov.

2.250 

1,510

1,000

760

630

545

*488

444

400

368

347

326

508 

291

283

294

378

368

*520 

286

264

249

238

223

214

200

193 

184

178

*169

15,708

457

27,190

Dec.

160 

156

152

218

305

326

294

249

228

711

7,220

7,280

*7,890 

4,620

2,740

1,950

1,480

1,180

972 

818

760

639

577

525

488

466

446 

432

414

407

597

44,500

1,455

88,260

Jan.

387 

*578

571

368

365

359

574

477

466

*442

474

675

1,280 

1,220

3,150

2,130

1,500

1,160

1,440 

7,540

4,330

2,810

2,090

1,900

1,720

1,450

1,240 

1,120

*1,000

916

853

43,785

1,412

86,850

Feb.

1,270 

1,770

1,320

1,120

1,000

930

950

1,180

1,110

979

895

832

846 

902

853

818

790

760

730 

702

852

965

1,540

5,150

4,550

8.610

6,240 

4,020

-

51,444

1,837

102,000

Mar.

3,010 

*2,060

2,450

4,320

9,130

7,650

6,170

4,430

4,910

3,980

9,050

*17.100

8,330 

5,720

5,360

*4,590

4,140

3,290

,790 

,450

,080

,770

,520

,550

,200

,980

,610 

,400

,810

,040

,250

151,900

4,255

261,600

Apr.

5.400 

2,650

2,150

*1,850

1,590

1,450

1,320

1,120

1,020

940

865

858

858 

1,680

1,370

1,070

988

1,220

1,190 

1,100

972

886

816

748

712

664

620 

590

565

535

35,777

1,193

70,960

May

*525 

670

590

530

490

468

445

43.6

436

445

450

422

418 

454

418

391

481

2,890

4,140 

3,860

2,940

2,150

1,690

1,370

*1,160

1,010

908 

830

754

706

664

33,141

1,069

65,730

June

615 

580

555

530

510

490

463

450

452

409

596

391

375 

364

355

337

314

506

294 

286

270

258

250

242

226

220

212 

209

206

202

10,745

358

21,310

July

195 

195

188

184

174

167

160

154

151

148

al45

a!45

a 155 

a20O

a!70

a 155

a!40

a!30

a!20

al!5

allO

a!05

alOO

*95

92

90

88 

82

82

li

4,193

135

8,320

Aug.

75 75-

71

69

69

69

67

65

63

61

59

57

55 

55

55

55

55

55

55 

55

55

55

55

53

52

50

48 

48

48

45

57.

1,780

57.4

5,550

Sept.

54 

34

33

35

51

30

51

31

*50

30

30

28

27 

27

28

30

28

27

26 

25

24

23

24

25

22

40

m103

71

1,349

45.0

2,680

Calendar year 1956: Max 21,200 Min 19 Mean 1,235 Ac-ft 896,800

Water year 1956-57: Max 17.1OO Min 19 Mean 1,060 Ac-ft 767',200

._ak discharge (base, 7.OOO cfs). Oct. 30 (1O:30 a.m.) 10,400 cfs (13.47 ft); Dec. 11 (6:3O p.m.) 

13,700 cfs (14.66 ft); Jan. 20 (12 m.) 8,500 cfs (12.71 ft); Feb. 26 (2:30- p.m.) 12.10O cfs 

(14.07 ft); Mar. 5 (3:5O a.m.) 11,700 efs (14.16 ft); Mar. 12 (3 a.m.) 24,100 cfs (18.48 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

station near Blue Lake.
566 LOST RIVER BASIN

Lost River diversion canal near Olene, Oreg.

Location. Lat 42°09', long 121 °40', in SW^- sec. 29, T. 39 S., R. 10 E., on left bank 

4 miles southwest of Olene.

Records available. May 1912 to September 1957.

Gage. Staff gages above and below headgates at intake of canal at Lost River Dam, read 

once daily.

Average discharge . 41 years (1912-15, 1919-57), 151 cfs (109,300 acre-ft per year). 

Extremes. 1912-57: Maximum daily discharge, 2,860 cfs Jan. 16, 1956; no flow at times.

Remarks. Records fair. Discharge computed from daily record of openings and head on 

gates with variable coefficient determined by discharge measurements. Canal diverts 

water from Lost River and discharges into Klama'th River to aid in reclamation of Tule 

Lake. Discharge includes water occasionally wasted from "C" Canal flume below intake 

(none during 1957 water year). Beginning in July 1951, records include pumpage by 

Miller Hill pumping plant which operates- at times; during period May through August 

1957, pumpage amounted to 7,330 acre-ft. At times direction of flow is reversed and 

water diverted from Klamath River into Lost River. (See record for Diversion from 

Klamath River to Lost River, near Olene, following page).

Cooperation. Records furnished by Bureau of Reclamation.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Totaa

Mean

Ac-ft

Oct.

465

474

523

433

416

514

460 

291

325

422

524

575

619

F7S

448

450

440

450

380

350

379

392

394

401

402

4EO

484

475

453

450

490

13,869

447

27,510

Nov.

500

490

490

485

465

454

476 

440

350

282

464

621

700

499

612

660

692

744

760

755

720

717

715

713

717

725

702

700

698

710

18,026

601

35,750

Dec.

700

409

215

159

163

170

173 

172

169

169

218

512

705" 758

476

260

181

T5B" 144

170

196

176

170

153

144

150

153

155

156

158

154

 7,841

253

15,550

Jan.

154

154

162

159

148

151

139 

146

150

149

149

124

153

162

166

168

T64

152

150

146

146

149

147

149

146

139

136

127

130

123

124

4,562

147

9,050

Feb.

134

141

146

135

134

69

38 

0

0

0

0

0

0

0

0

98

57

329

341

94

150

280

270

271

967

1,510

1.600

1,410

-

8,174

292

16,210

Mar.

761

418

403

415

607

1,220

1.260 

967

678

589

537

691

934

924

909

960

1,020

966

937

887

782

724

704

461

353

286

353

323

SIS' 184

562

21,130

682

41,910

Apr.

637

726

SBT

574

495

409

392 

274

149

16

0

<5

37

30

92

127

154

179

227

98

92

241

228

215

204

194

192

188

186

183.

7,191

240

14,260

May

175- 172

176

214

364

428

406 

404

392

365

346

345

357

355

350

326

279

313

452

490

481

463

463

466

452

422

373

326

274

260

250

10,939

353

21,700

June

T6"6" 247

69

0

U

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

14

22

19

35

71

85

58

20

18

35

97

956

31.9

1,900

July

124

112

85

91

112

148

150 

110

88

86

86

85

68

31

46

59

23

35

77

80

80

117

147

214

248

237

231

221

193

154

161

3,699

119

7,340

Aug.

191

204

166

162

19?

185

181 

184

177

181

191

209

215

211

213

218

243

246

230

244

298

303

292

293

318

284

276

318

364

379

372

7,543

243

14,960

Sept.

371

379

404

403

381

328

294 

260

213

176

195

224

262

286

330

322

302

312

313

331

377

384

348

332

284

278

367

553" 552

507

10,038

335

19,910

Calendar year 1956: Max 2,860 Min 0 Mean 550 Ac-ft 399,600

Water year 1956-57: Max 1,600 Min 0 Mean 312 Ac-ft 226,000
LOWER KLAMATH LAKE BASIN 567

Antelope Creek near Tenrant, Calif.

Location.--La t 41°32'45", long 121°55'05", in NW£ sec. 25, T. 43 N., R. 1 W. , on right 

bank 2.5 miles south of Tennant, 4 miles downstream from Frog Lake, and 17 miles southeast of town of Mount Hebron.

Drainage area. 18.8 sq mi.

Records available.--May 1952 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 5,080 ft (from topographic map).

Average discharge. 5 years, 36.2 cfs (26,210 acre-ft per year).

Extremes. Maximum discharge during year, 382. cfs May 18 (gage height, 3.76 ft), from 

rating curve extended above 200 cfs as explained below; minimum daily, 11 cfs 

Jan. 23-29; minimum gage height, 0.63 ft Sept. 24, 25.

1952-57: Maximum discharge, 422 cfs Dec. 22, 1955 (gage height, 3.93 ft), from 

rating curve extended above 200 cfs on basis of logarithmic plotting; minimum, 5.9 cfs 

Dec. 3,4, 1955, buy may have been less during periods of ice effect.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions for about 1,000 acres above station.

Rating tables, water year 1956-57, except periods of Ice effect (gage height, In feet, 

and discharge, In cubic feet per- second)

Oct. 1 to Jan. 15

0.8 14

1.0 24

Jan. 16 to Sept. 27

1.2 

1.6

2.0 

2.5 

3.0 

3.5

103

.162

240

330

Sept. 28 to Sept. 30

0.9 21

1.0 26

1.2 39

Discharge, In cubic feet .per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

16

16

16

16

15_

15

15

15

16

SI

20

18

18

17

17

17

17

18

17

17

17

17

17

17

18

22

19

18

18

18

20

540

17.4

1,070

Nov.

19

18

20

20

20

20

20

19

19

20

20

19

18

18

*17

17

18

18

17

16

16

16

16

16

16

16

17

16

15

IS

532

17.7

1,060

Dec.

15

15

15

15

15

14

13

13

14

15

17

22

23

20

18

18

17

17

16

16

16

16

15

15

15

15

14

14

14

14

14

490

15.8

972

Calendar year 1956: Max 212

Jan.

14

14

14

14

14

14

*19

21

18

15

14

18

20

19

16

14

13

12

12

12

12

12

11

TT

11

11

11

11

11

12

12

432

13.9

857

Feb.

I!

13

13

*14

14

15

15

15

15

16

16

16

16

16

16

16

17

17

17

18

18

22

75

195

93

193

114

79

-

1,096

39.1

2,170

Mln 13

Mar.

66

61

53

51

52

56

58

57

70

55

54

59

50

46

44

42

41

39

38

38

*38

38

36

36

38

38

38

40

42

38

38

1,450

46.8

2,880

Apr.

37

38

42

44

45

44

42

44

45

48

48

61

55

82

So

57

55

55

52

50

50

50

49

48

48

49

50

53

57

66

1,524

50.8

3,020

May

75

91

74

74

76

81

86

88

*94

83

78

79

114

93

82

81

91

T90" 295

141

116

101

90

86

82

83

88

92

95

92

95

3,086

99.5

6,120

June

96

95

91

88

85

79

74

70

68

62

*58

56

52

48

46

42

41

41

42

41

40

38

36

36

36

36

35

34

32

31

1,629

54.3

3,230

July

30

28

27

26

25

24

24

23

22

22

22

20

22

21

20

20

19

18

18

18

18

18

18

18

17

17

16

TE

16

16

16

635

20.5

1,260

Mean 46.4 Ac-ft 33,710

Aug.

15

15

15

15

15

16

15

14

14

14

14

14

14

14

14

1313"

13

13

13

13

13

13

13

13

*13

13

13

13

13

13

426

13.7

845

Sept.

13

12

I?

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

13

12

12

12

12

12

12

25

-8T 101

25

24

511

17.0

1,010

Water year 1956-57: Max 295 Mln 11 Mean 33.8 Ac-ft 24,490

* Discharge measurement made on this day.

Note..--Stage-discharge relation affected by Ice Nov. 19-22, Dec. 6-11, 22-31, Jan. 3 to Feb. 19, 

Feb. 23, 24 (no gage-height record Jan. 16 to Feb. 4; discharge estimated on basis of 2 discharge 

measurements, weather records, records for Butte Creek near Macdoel, and Angel Creek near MoCloud).
568 LOWER KLAMATH LAKE BASIN

Butte Creek near Macdoel, Calif.

Location. Lat 41°43', long 122°00 I , in NE£ sec. 30, T. 45 N. , R. 1 W. , on right bank 

7 miles south of Macdoel and 7.5 miles downstream from Little Antelope Creek.

Drainage area. 178 sq mi.

Records available . September 1921 to June 1922, December 1951 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 4,300 ft (from topographic map). 

Sept. 18, 1921, to June 20, 1922, at site 0.6 mile downstream at different datum.

Average discharge. 5 years (1952-57), 20.9 cfs (15,130 acre-ft per year).

Extremes.--Maximum daily discharge during year, 150 cfs Feb. 24; minimum, 3.0 cfs Sept. 9. 

T9"21-22, 1951-57: Maximum discharge, 238 cfs Jan. 16, 1956 (gage height, 5.42 ft); 

no flow Dec. 22-25, 1952.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor. Diversions for about 3,000 acres above station. Inflow above station 

from Antelope Creek occurs at times, the maximum observed being 15 cfs.

Rating tables, water year 1956-57, except periods of ice effect (gage 

height, In feet, and discharge, in cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

1.9 7.2

2.1 13

2.4 26

2.7 44

3.1

3.5 

4.1

72

103

157

1.6

1.7 

1.9 

2.2 

2.5

2.7

3.9

7.6

16

30

2.8 47

3.2 74

3.6 105

4.0 142

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

o3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

Tff

7.2

7.5

7.5

7.8

7.8

8.0

8.2

8.8

9.9

10

10

10

9.9

9.6

9.9

11

11

12

12

12

12

13

13

13

14

15

15

15

16

330.5

10.7

656

Nov.

16

16

16

16

15

15

16

18

19

T?

17

16

16

16

*14

14

14

14

13

12

12

13

13

13

13

14

15

13

13

14

443

14.8

879

Dec.

15

15

16

17

15

13

11

12

13

14

17

24

21

19

17

15

14

13

12

11

11

10

10

9

9

8

8

8

8

7

7

399

12.9

791

Calendar year 1956 : Max 193

Jan.

7

T

7

7

7

8

*8

9

8

8

8

9

9

TO" 10

10

10

10

9

8

8

8

8

8

8

8

8

8

8

8

8

257

8.29

510

Feb.

8

a

8

*8

8

8

8

8

8

8

8

8

8

8

8

8

8

9

9

10

11

12

25

~90 150

140

110

90

-

792

28.3

1,570

Mar.

70

60

50

48

45

46

47

50

52

54

49

*50

49

48

47

46

45

44

42

40

*38

37

33

32

32

33

33

30

28

32

34

1,344

43.4

2,670

Apr.

36

34

31

29

29

30

31

30

28

28

27

*27

27

32

30

45

32

31

30

29

28

27

27

27

26

26

26

27

29

31

890

29.7

1,770

May

34

39

45

49

40

41

43

45

*47

48

48

45

43

50

52

49

44

48

70

109

83

66

55

50

45

43

43

42

43

43

42

1,544

49.8

3,060

June

39

38

37

36

33

32

30

28

28

28

*28

27

24

23

23

22

21

19

18

17

16

15

14

13

13

12

12

11

10

To

677

22.6

1,340

July

9.5

9.2

9.2

9.0

8.7

8.7

8.5

8.5

8.3

7.4

7.2

7.0

6.8

6.6

6.6

6.6

6.4

6.2

6.0

6.2

6.2

6.6

6.6

6.2

5.4

4.9

4.5

4.4

4.2

4.2

4.0

209.8

6.77

416

Aug.

3.9

3.9

3.9

3.9

3.9

4.2

T72

4.0

4.0

4.0

4.2

4.0

3.9

3.8

3.6

3.5

3.4

3.4

3.3

3.3

3.4

3.3

3.1

373

3.3

*3.5

3.6

3.5

3.6

3.8

3.9

114.6

3.70

227

Sept.

3.8

3.6

3.6

3.6

3.6

3.6

3.5

3.5

375

3.6

3.6

3.6

3.6

3.6

3.8

4.0

4.0

3.9

3.8

3.8

3.6

3.6

3.5

3.5

3.9

11

23

30

25

184.1

6.14

365

Mln 6.6 Mean 31.0 Ac-ft 22,510

Water year 1956-57 : Max 150 Mln 3.1 Mean 19.7 Ac-ft 14,250

Discharge measurement made on this day.
KLAMATH RIVER BASIN 569

Williamson River near Klamath Agency, Oreg.

Location. Lat 42°44', long 121°50', In SW£ sec. 1, T. 33 S., R. 7 E., on right bank 

250 ft downstream from bridge, 0.6 mile southwest of railroad station at Kirk, 

10 miles upstream from Spring Creek, and 10 miles northeast of Klamath Agency.

Drainage area.--1.290 sq mi, approximately.

Records available.--March 1908 to June 1910, October 1954 to September 1957.

Gage. Water-stage recorder. Datum of gage is 4,481.34 ft above mean sea level, datum 

of 1929, supplementary adjustment of 1956. Prior to June 27, 1910, staff gage at 

site half a mile upstream at different datum. Oct. 1, 1954, to Sept. 30, 1955, waterstage recorder at present site at datum 2.05 ft higher.

Extremes.--Maximum discharge during year, 1,060 cfs Mar. 6, 7 (gage height, 5.50 ft); 

minimum, 2.9 cfs Aug. 24.

1908-10, 1954-57: Maximum daily discharge, 1,590 cfs Mar. 13, 1910, estimated on 

basis of a gage-height record at site below Spring Creek 11 miles downstream; minimum, 0.1 cfs Sept. 2-12, 1955.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

which are fair. Natural regulation by marsh; numerous diversions above station.

Rating table, water year 1956-57, except periods of ice effect (gage

height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used Sept. 5-16)

3.5 

4.0 

4.5 

5.0 

5.5

3.2 4

Discharge, in cubic feet per

80

185

365

640

1,060

nd, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

149

1ST

153

156

158

161

161 

*158

156

158

172

172

177

182

182

182

180

177

185

188

197

191

191

197

209

232

250

268

271

293

5,939

192

11,780

Nov.

329 3-57

365

378

378

383

392 

392

401

401

406

401

401

401

392

383

406

420

*425

4T5

410

406

401

396

392

388

388

378

374

365

11,724

391

23,250

Dec.

361

357

349

337

297

b280

b250 b2"EO~

b270

b280

361

420

425

445

445

445

450

455

460 460'

460

460

450

450

445

435

425

410

406

401

396

12,14b

392

24,090

Jan.

388

370

353

*333

309

289

274 

246

b230

b230

243

243

240

236

229

b210

b200

b210

b210

215

b200

b200

203

200

191

b!80

a!60

3.TTG

a!80

a!70

a!70

/,2jZ

235

14,440

Feb.

a!60

a!60

a!50

aT50~

a!50

al50

a!50 

alSO

a!60

a!60

a!60

a!60

a!60

*151

157

158

161

169

177

185

197

229

274

406

551

696

835

898

-

7,204

259

14,410

Mar.

943

952

952

970

997

1,040

1,050 

1,040

997

970

952

979

997

1,020

1,030

1,020

1,020

1,040

1,050

997

970

952

952

916

934

934

925

*907

889

862

30,128

972

59,760

Apr.

898

Bsff

889

853

782

782

790

774

750

726

718

689

689

647

668

682

675

675

689

689

675

661

640

614

bOl

594

588

575

563

539

21,013

700

41,680

May

515

495

504

504

498

*488

476 

450

445

435

430

420

410

410

401

392

378

378

365

374

374

378

374

365

357

353

349

337

333

321

313

12,625

407

25,040

June

301

2S§

382

271

250

250

243 

236

232

226

209

200

188

185

194

194

191

185

*172

169

166

163

156

151

149

144

140

137

131

123

6,027

201

11,950

July

117

TTJ

111

106

95

94

92

88

85

78

77

76

66

66

66

65

64

58

55

48

42

39

37

36

32

51

29

27

23

22_

*26

1,964

63.4

3,900

Aug.

2B- 28

24

22

22

22

22 

19

19

19

19

17

16

16

15

15

11

8.7

7.4

6.9

6.9

5.6

4.3

3.6

3.6

3.8

3.3

T74

5.4

5.6

6.2

407.7

13.2

809

Sept.

6.4

674

7.4

8.2

8.5

9.0

8.5 

11

11

9.7

*8.7

10

13

14

15

16

20

25

29

28

30

32

36

36

38

43

70

95

111

155

890.8

29.7

1,770

Calendar year 1956: Max 1,200 Mln 60 Mean 480 Ac-ft 348,200

Water year 1956-57: Max 1,050 Mln 3.3 Mean 322 Ac-ft 232,900

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records, recorded range in stage, 

and records for station below Sprague River near Chlloquin. 

b Stage-discharge relation affected by ice.
570 KLAMATH RIVER BASIN

Sprague River near Beatty, Oreg.

Location.--Lat 42°27', long 121°15', in NW^SE^ sec. 13, T. 36 S., R. 12 E., on right 

bank If miles east of Beatty and 4 miles upstream from Sycan River.

Drainage area. 513 sq mi.

Records available.--April 1912 to September 1926 (fragmentary), October 1953 to September 

T35T. Published as "near Yainax" 1912-17.

Gage. Water-stage recorder. Datum of gage is 4,305.35 ft above mean sea level, datum 

of 1929, supplementary adjustment of 1947. Apr. 19, 1912, to Feb. 19, 1914, staff 

gage, Feb. 20, 1914, to Sept. 11, 1917, water-stage recorder, and Sept. 12, 1917, to 

Sept. 30, 1926, staff gage at site 2 miles upstream at different datum.

Average discharge.--6 years (1914-15, 1919-20, 1953-57), 314 cfs (227,300 acre-ft per 

year).

Extremes.--Maximum discharge during year, 2,090 cfs Feb. 27 (gage height, 8.06 ft); minimum, 113 cfs Sept. 21.

1912-26, 1953-57: Maximum discharge, 3,340'cfs Dec. 23, 1955 (gage height, 9.44 ft); 

minimum, 57 cfs June 30, 1924, June 20, 1926.

Remarks.--Records fair. Diversions for irrigation above station.

Discharge, In cubic feet per second, water year October- 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

178

179

180

180

178

176 T79-

178

*185

190

247

267

230

206

197

192

191

 190

192

186

185

1S2

182

ISO

185

228

267

230

209

256

555

6,358

205

12,610

Nov.

251

242

238

240

237

232

235

22S

222

222

221

215

209

202

192

191

196

203

192

*176

176

17S

174

174

172

170

167

167

166

TSS

6,054

202

12,010

tec.

163

162

163

170

164

152

148

TBT

156

170

224

488

522

555

325

289

261

245

233

218

21S

198

200

209

194

188

184

1S5

204

204

203

7,107

229

14,100

Jan.

198

197

*185

184

1S4

179

170

T70- 160

182

203

202

208

216

2(59

203

185

1S4

200

203

196

182

197

202

194

188

180

186

197

186

194

5,924

191

11,750

Feb.

209

204

194

134

197

194

196

200

200

200

200

*202

222

499

652

461

347

305

287

337

319

387

472

665

1,190

1,000

1,930

1,280

-

12,643

452

25,080

Mar.

650

538

4S8

484

SOI

979

937

886

665

612

545

885

1.160

781

652

739

71S

62S

652

612

562

491

463

449

49T

757

*642

588

598

652

692

20,797

671

41,250

Apr.

868

724

620

600

602

620

618

580

578

590

602

615

648

650

685

632

605

598

632

712

658

5S5

568

570

562

558

575

612

672

757

18,896

630

37,480

May

799

847

871

829

817

820

*835

871

922

937

910

940

964

919

847

772

748

772

1,100

1,640

1.960

1,070

889

769

678

642

628

620

610

e? 0 boo

675

27,339

882

54,230

June

662 620"

590

515

488

452

417

399

365

381

381

345

325

301

285

271

269

*252

233

235

230

215

202

198

191

192

186

182

178 

T5^ .loD

9,745

325

19,330

July

1S2

182

185

198

200

191

184

ISO

179

184

176

176

173

173

174

174

172

172

170

169

172

182

185

179

170

179

172

172

178

169

*164

5,516

178

10,940

Aug.

162

15?

157

155

157

156

157

157

157

156

148

146

145

143

145

146

146

148

148

148

143

143

139

141

13S

141

136

136

132 133"

132

4,550

147

9,020

Sept.

130

129

129

129

125

124

122

121

120

119

132

*121

119

117

117

116

116

115

115

115

113

TT5

115

115

115

120

148

256

256

333

4,117

137

8,170

Calendar year 1956: Max 2,660 Min 14S Mean 612 Ac-ft 444,600

Water year 1956-57: Max 1,960 Min 113 Mean 354 Ac-ft 256,000

* Discharge measurement made on this day.
KLAMATH RIVER BASIN 571

Sprague River near Chiloquin, Oreg.

Location. Lat 42 0 35 ! , long 121°51 ! , in NE£ sec. 35, T. 34 S., R. 7 E., on right bank 

li miles east of Chiloquin and 4 miles upstream from Modoc Point Canal intake.

Drainage area. 1,580 sq mi, approximately.

Records available.--July 1920 to September 1957. Prior to August 1931, published as "at 

McCready Ranch, near Chiloquin."

Gage. Water-stage recorder. Datum of gage is 4,202.43 ft above mean sea level, datum of 

1929, supplementary adjustment of 1947. Prior to Aug. 14', 1931, staff gage at site 

12 miles upstream at different datum.

Average discharge. 36 years (1921-57), 538 cfs (389,500 acre-ft per year).

Extremes. Maximum discharge during year, 3,380 cfs Mar. 2 (gage height, 5.27 ft); minimum, 253 cfs July 26.

1920-57: Maximum discharge, 6,650 cfs Apr. 1, 1943 (gage height, 7.47 ft); minimum 

daily, 50 cfs May 26, 27, 1926.

Remarks.--Records good except those for periods of ice effect, which are fair. Regulation by ponding at irrigation dams. Diversions above station for irrigation.

Revisions (water years). WSP 1011; 1943(M).

Rating table, water year 1956-5.7, except periods of ice effect (gage

height, in feet, and discharge, in cubic feet per second)

(Shifting-control method used Dec. 2T3 to Jan. 7)

1.5 

2.0 

3.0 

4.0 

5.0 

6.0

225

465

1,150

1,990

3,040

4,400

Discharge, in cubic feet .per second, water year October 1956 to September 1957

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

395 

395 

'390 390

395

395

395

395

*395

395

400

410

460

498

498

470

460

460

448

438

432

438

438

443

448

460 

470

49O

498

'550 550 

13,699

442

27,170

Nov.

522 

574 

604

556

520

520

520

53.4

509

509

509

504

498

492

487

482

454

448

*448

454

448

426

421

421

421

410 

405

400

395

400

14,271

476

28,310

Dec.

4OO 

390 

390

416

400

b340

b320

b340

375

432

454

487

526

654

794

759" 829

647

586

544

520

482

476

436

421

b38O 

b360

b350

355

432 

421

14,716

475

29,190

Jan.

432

415 

380

*385

b380

b360

b320

b320

b340

b340

b360

385

390

421

432

432

b400

b380

b340

510

b340

b360

b380

380

b380

b360 

b360

b380

b380

b380 

b380

11,597

374

23,000

Feb.

b380 

b400 

b380

b380

395

395

405

400

410

416

421

416

*421

454

538

815

976

899

696

622

668

808

969

1,280

1,460

1,610 

1,930

2,440

-

21,384

764

42,410

Mar.

3,080 

5.540 

2,820

2,110

1,730

1,520

1,520

1,720

1,880

1,840

1,720

1,700

1,580

1,570

1,720

1,830

1,730

1,600

1,590

1,560

1,500

1,460

1,440

1,370

1,270

1.170 

*1,170

1,290

1,410

1,410

1,350

53,OOO

1,710

105,120

Apr.

1,340 

1,340 

1,410

1,480

1,430

1,340

1,250

1,220

1,200

1,160

1,110

1,090

1,090

1,100

1,130

1,170

1,240

1,270

1,270

1,240

1,220

1,240

1,260

1,250

1,160

1,O8O 

1,040

1,010

990

976

36,106

1,204

71,620

May

1,010 

1,080

1,170

1,280

1,410

1.5OO

*1,530

1,500

1,480

1,490

1,530

1,590

1,620

1,640

1,640

1,630

1,610

1,580

1,510

1,460

1,450

1,570

1,770

1,970

2.000

1,860 

1,670

1,490

1,360

1,260 

1,210

46,870

1,512

92 , 960

June

1.140 

1,130 

1,140

1,130

1,070

990

920

857

808

766

731

703

696

675

640

610

586

*568

550

532

509

498

487

460

448

438 

426

432

421

416

20, 777

692

41,210

July

405 

405 

405

405

410

400

395

385

375

370

370

370

360

350

340

340

335

335

330

325

325

325

325

335

330

257 

274

301

335

330 

*306

10,853

350

21,530

Aug.

278 

288 

292

296

288

283

278

261

265

270

278

278

283

283

278

278

274

274

278

278

278

292

288

292

288

292 

296

306

306

3O6 

306

8,831

285

17,520

Sept.

306 

306 

306

306

3O6

306

306

306

306

301

301

*296

296

301

296

296

301

306

320

370

325

320

320

320

320

325 

370

390

400

454

9,682

323

19,200

Calendar year 1956: Max 5,440 Min 320 Mean 1,339 Ac- pt 972, OOO

Water year 1956-57: Max 3,340 Min 257 Mean 717 Ac-ft 519, 2OO

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
572 KLAMATH RIVER BASIN

Williamson River below Sprague River, near Chiloquin, Oreg.

Location. Lat 42°34' , long 121°52', in sec. 3, T. 35 S., R. 7 E., on left bank a quarter of a mile downstream from Sprague River and three-quarters of a mile southwest of 

Chiloquin.

Drainage area. 3,000 sq mi, approximately. 

Records available. June 1917 to September 1957.

_.--Water-stage recorder. Datum of gage is 4,155.55 ft above mean sea level, datum 

of 1929. Prior to Aug. 31, 1923, water-stage recorder at same site at different datum.

Average discharge. 40 years, 975 cfs (705,900 acre-ft per year).

Extremes.--Maximum discharge during year, 4,650 cfs Mar. 2 (gage height, 5.74 ft); minimum, 571 cfs July 26.

1917-57: Maximum discharge, 7,660 cfs Apr. 1, 1943 (gage height, 7.29 ft); minimum, 320 cfs Oct. 14, 1920.

Remarks. Records good. Some regulation by irrigation diversion dams and log pond operations on Sprague River. Diversions above station for irrigation.

Revisions (water years). WSP 981: 1938(M).

Rating table, water year 1956-57 (gage height. In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used Feb. 25 to Apr. 25, May 5-28)

2.3 

3.0

4.0 

6.0

520

1,120

2,180

4,850

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

936 

945 

945 

954

954

962

962

970

*954

1,000

1,010

1,020

1,050

1,110

1,120

1,090

1,070

1,060

1,060

1,050

1,050

1,060

1,060

1,060

1,080

1,130

1,140

1,160

1,220

i -L , C />Qn JU

1,250

32,722

1,056

64,900

Nov.

1,270 

1,340 

1,580 

1,330

1,310

1,300

1,310

1,310

1,310

1,310

1,310

1,310

1,310

1,300

1,300

1,300

1,290

1,290

*1,290

1,290

1,280

1,260

1,240

1,250

1,240

1,230

1,220

1,220

1,210

JL,200

38,510

1,284

76,380

Dec.

1,190 

1,180 

1,200 

1,180

1,160

1,090

988

1,020"

1,100

1,210

1,260

1,350

1,400

1,530

1,670

1.710

1,660

1,540

1,490

1,450

1,430

1,390

1,370

1,330

1,310

1,290

1,260

1,230

1,220

1,230

1,250

40,688

1,313

80,700

Jan.

1,260 

1,230 

1,180 

*1,160

1,080

1,060

1,080

1,080

1,030

1,020

1,070

1,070

1,080

1,100

1,110

1,090

1,030

1,020

970

945

970

988

1,020

1,010

979

860

843

952

920

936

970

32,063

1,034

63,600

Feb.

970 

954 

970 

970

954

945

945

954

945

956

945

936

*945

970

1,050

,300

,510

,460

,270

,210

,260

,470

,700

,220

,460

,720

,150

.620

-

39,739

1,419

78,820

Mar.

4,280 

4,640 

4,250 

3,560

5,200

5,050

5,050

3,220

3,360

3,320

3,190

3,280

3,090

3,070

3,220

3,330

3,230

3,120

3,110

3,070

2,960

2,890

2,880

2,790

2,710

2,600

*2.590

2,670

2,790

2,790

2,760

98,020

3,120

194,400

Apr.

2,750 

2,750 

2,790 

2,850

2,810

2,680

2,590

2,550

2,520

2,440

2,380

2,240

2,290

2,280

2,280

2,310

2,350

2,410

2,410

2,370

2,550

2,350

2,360

2,340

2,250

2,140

2,100

2,050

2,020

1.990

72,000

2,400

142,800

May

1,980 

2,020 

2,100 

2,190

2,510

*2,420

2,460

2,420

2,380

2,400

2,420

2,480

2,490

2,520

2,520

2,490

2,440

2,430

2,380

2,300

2,300

2,400

2,620

2,810

2,840

2,710

2,490

2,300

2,130

2,000

i,920

73,670

2,376

146,100

June

1,870 

1,840 

1,840 

1,810

1,730

1,640

1,570

1,490

1,440

1,380

1,350

1,290

1,270

1,250

1,210

1,190

1,160

1,140

*1,080

1,110

1,050

1,040

1,030

954

936

901

894

920

901

886

38,172

1,272

75,710

July

818 

809 

809 

809

818

800

800

792

784

775

758

750

716

707

690

690

682

682

673

673

673

664

656

664

664

588

596

630

648

648

*673

22,139

714

43,910

Aug.

614 

630 

622 

622

614

622

614

588

596

596

605

605

605

605

605

605

605

605

596

596

596

614

622

622

622

622

630

630

648

g ta o4o

639

19,043

614

37,770

Sept.

648 

648 

648 

648

656

648

648

656

656

648

639

*63"9

648

673

673

673

664

664

690

750

707

690

698

707

707

724

809

852

877

962

20,950

698

41,550

Calendar year 1956: Max 6,480 Mln 792 Mean 2,161 Ac-ft 1,569,000

Water year 1956-57: Max 4,640 Mln 588 Mean 1,446 Ac-ft 1,047,000

Discharge measurement made on this day.
KLAMATH RIVER BASIN 573

Cascade Canal near Fish Lake, Oreg.

Location. Lat 42°24', long 122°16', in SE^ sec. 30, T. 36 S., R. 5 E., on left bank at 

divide between Rogue River and Klamath River basins, 3 miles upstream from Fish Lake 

and 10 miles downstream from point of diversion.

Records available. June 1924 to September 1957 (irrigation seasons only, 1956 fragmentary).

Gage. Water-stage recorder. Altitude of gage is 5,235 ft (by barometer). Prior to 

May 26, 1926, staff gage at same site and datum. May 26, 1926, to June 26, 1954, 

water-stage recorder at datum 0.39 ft lower.

Extremes. 1954-57: Maximum daily discharge, 58 cfs July 25, 26, Aug. 8-10, 1955, 

June 6, 11, 14-16, 1957; no flow at times.

Remarks. Records poor. Water stored in Fourmile Lake was released to canal during

periods Oct. 12 to Nov. 2, June 4 to Aug. 7, and Aug. 17-26. Canal diverts water from 

Fourmile Creek, in Klamath River basin, and discharges into lava bed If miles above 

Fish Lake, in Rogue River basin. Also some runoff from melting snow intercepted and 

diverted. Entire flow sinks in lava bed, reappearing in springs at head of Pish Lake.

Cooperation. Water-stage recorder inspected by employee of Medford Irrigation District. 

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

0

0

0

0

0

0

a 18

a35

a 35

*35

32

33

34

35

35

35

36

39

33

37

23

19

17

18

22

18

595

19.2

1,180

Nov.

18

17

-

-

-

_

-

-

-

-

_

-

_

-

-

_

-

_

_

-

_

_

_

-

-

_

-

-

-

-

_

-

-

Dec.

-

-

-

Calendar year : Max

Jan.

_

-

-

Feb.

-

.

-

-

Mar.

.

-

-

Apr.

.

-

-

May

_

. _

.

_

-

_

.

-

_

-

.

.

.

_

-

_

_

_

_

-

_

_

_

_

-

_

-

_

8.2

8.2

8.0

.

-

-

June

7.5

a7.5

a7.5

a21

55

58

57

56

56

*57

58

57

57

58

58

58

57

a3

a3

20

53

53

52

52

52

51

52

56

56

56

1,344.5

44.8

2,670

July

57

56

56

56

56

56

56

56

*56

56

55

55

55

55

*55

55

54

54

53

53

53

52

52

52

52

52

52

51

 50

50

50

1,671

53.9

3,310

Aug.

49

49

48

48

48

48

31

.0

0

0

0

0

0

0

0

0

15

46

52

5?

51

51

50

50

50

33

0

0

0

0

0

771

24.9

1,530

Sept.

0

0

0

Min Mean Ac-ft

Water year : Max Min Mean Ac-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of regulation notes.
574 KLAMATH RIVER BASIN

"A" Canal at Klamath Palls, Oreg.

Location. Lat 42°14' , long 121°48'', in fffii sec. 30, T. 38 S., R. 9 E., on left bank 

300 ft downstream from headgates of canal and 1 mile northwest of Klamath Palls.

Records available. October 1910 to September 1957.

Gage. Water-stage recorder. Datum of gage is 4,126.22 ft above mean sea level, Bureau 

of Reclamation datura (levels by Bureau of Reclamation). Prior to May 1, 1923, waterstage recorder at site three-quarters of a mile upstream at head of tunnel and at different datum. May 1, 1923, to Apr. 80, 1924, water-stage recorder at site a quarter 

of a mile upstream Just below tunnel at different datum. Apr. 21, 1924, to Apr. 14, 

1925, staff gage at present site and datum.

Average discharge. 47 years, 222 cfs (160,700 acre-ft per year).

Extremes.--1910-57: Maximum daily discharge, 1,120 cfs June 22-24, 1953, July 17, 20, 

1954, June 8, 1957; no flow at times.

Remarks. Records good. Canal diverts water from Upper Klamath Lake in NEf sec. 30,

T. 38 S., R. 9 E., for irrigation of lands east of Klamath River on both sides of Lost 

River. Most of return water reaches Lost River.

Cooperation.--Gage-heIght record, 11 discharge measurements, and computation of daily 

discharge furnished by Bureau of Reclamation; 4 discharge measurements made and 

records reviewed by Geological Survey.

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

B 

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Tota]

Mean

Ac-ft

Oct.

*362

372

387

373

377

372

359

347

*295

91

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

3,335

108

6,610

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

-

0

0

0

Mar.

0

0

0

Apr.

0

15

0

0

0

0

0

0 

0

0

0

0 

0

0

0

0

0

0

0

0

0

21

33

37

77

129

167

165

200

293

1,122

37.4

2,230

May

355

380

*385

428

480

544

648

» 13 

74

85

88

47 

687

687

677

716

764

697

547

423

354

*321

307

292 299"

346

415

545

664

713

705

17,186

554

34,090

June

747

814

901

978

1,060

1,110

1,110

1,120 

1,100

1,100

*1,100

1,080 

1,060

1,060

1,010

950

*921

»942

951

975

1,010

948

835

817

900

905

891

9O7

951

968

29,221

974

57,960

July

980

989

925

844

874

941

953

968 

1,030

1,040

1,050

1,060 

1,020

980

983

1,000

1,030

1,020

*1,020

1,020

1,000

1,020

992

914

905

901

893

866

873

*930

930

29,951

966

59,410

Aug.

904

Ho£

300

851

891

888

872

856 

818

755

740

793 

*816

782

750

751

775

715

705

723

737

748

716

667

652

»666

716

725

722

CQ7 69

23,905

771

47,410

Sept.

6-1 !

678

685 '665

666

671

638

 14 

618

*614

616

645 

*676

681

678

673

663

645

625

602

577

572

550

546

555

 544

430

230

167

138

17,328

578

34,370

Calendar year 1956: Max 1,060 Mln 0 Mean 331 Ac-ft 240,200

Water year 1956-57: Max 1,120 Mln O Mean 334 Ac-ft 242,100

» Discharge measurement made on this day.
KLAMATH RIVER BASIN 575

Upper KLamath Lake near Klamath Palls, Oreg.

Location. Lat 42°15', long 121°48', in SW£ sec. 19, T. 38 S., R. 9 E., at southeast end 

of lake, 1 mile upstream from outlet and 2 miles northwest of KLamath Palls.

Drainage area. 3,810 sq mi, approximately. 

Records available. May 1904 to September 1957.

Gage. Water-stage recorder. Datum of gage is 4,098.22 ft above mean sea level, datum of 

1929, or 4,100 ft above mean sea level, datum of Bureau of Reclamation. Gage readings 

have been reduced to elevations above Bureau of Reclamation datum. May 28, 1904, to 

Dec. 31, 1905, staff gage at Pelican Bay at datum 37.78 ft higher, Jan. 7 to Feb. 15, 

1906, staff gage, Peb. 16, 1906, to June 16, 1918, water-stage recorder, and June 17, 

1918, to Nov. 9, 1923, staff gage, at Buena Vista landing at datum 36.13 ft higher.

Extremes. Maximum elevation during year, 4,143.66 ft June 5; maximum daily, 4,143.17 ft 

May 15; minimum, 4,138.93 ft Sept. 26; minimum daily, 4,139.13 ft Sept. 26.

1904-57: Maximum elevatio.i recorded, 4,144.98 ft about Apr. 20, 1904, from highwater marks; minimum recorded, 4,135.55 ft Oct. 30, 1944.

Remarks. Reservoir is formed by concrete dam at outlet of natural lake, completed in 

1921, replacing a temporary dam built in 1919; storage began Apr. 15, 1919. Capacity, 

584,000 acre-ft between elevations 4,135.0 and 4,143.3 ft. Dead storage below elevation 4,135.0 ft not known; lake level ordinarily maintained between elevations 

4,137.0 (contents, 118,600 acre-ft) and 4,143.3 ft. Water stored may be diverted 

through "A" Canal for irrigation of land under Klamath project of Bureau of Reclamation, or released to Link River-through dam or powerplants at Klamath Palls. Area of 

lake at high stages is partly controlled by diking. Lake elevations, particularly 

extremes, are very much affected by wind. Contents given herein represent those above 

elevation 4,135.0 ft.

Cooperation. Capacity table furnished by The California Oregon Power Co. 

Revisions (water years). WSP 1061: 1944.

Capacity table, water year 1956-57 (elevation, In feet, 

and usable contents, In acre-feet)

4.139

4.140

4.141

239,500

304,100

382,600

4.142

4.143

4.143.2

468,000

556,600

574,800

Mean elevation In feet, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

tt):

(*)

Oct.

frS

41.12

41.15

41.10

41.11

41.13

41.00

40.95

40.97

41.13

41.18

40.96

40.93

40.92

40.86

40.86

41.00

40.84

40.83

40.98

40.87

40.99

40.72

40.62

40.79

40.85

40.87

40.61

40.94'

40.95

376,000

-23,400

Nov.

40.91 

41.04

41.06

41.05

41.04

41.03

41.05

41.05

41.05

41.06

41.05

41.07

41.31

41.05

40.96

40.95

41.12

41.25

41.16

41.08

41.08

41.10

41.13

41.07

41.04

41.00

41.01

41.14

41.02

40.98

383,400

+7,400

Dec.

41.04 

40.99

40.91

-

-

_

40.97

40.97

40.95

40.94

41.11

41.09

41.22

41.22

41.23

41.28

41.29

41.30

41.31

41.32

41.37

41.28

41.29

41.29

41.28

41.28

41.26

41.24

41.23

41.22

41.21

400,200

+16,800

Jan.

41.21 

41.20

41.19

41.18

41.16

41.11

41.09

41.11

41.17

41.07

40.96

41.0*

41.04

41.00

41.04

41.13

41.07

41.03

41.02

41.11

41.10

41.10

41.18

41.18

41.18

41.10

41.08

41.07

41.03

41.01

40.99

381,800

-18,400

Peb.

40.97 

40.98

40.95

40.93

40.92

40.90

40.91

40.89

40.89

40.89

40.88

40.88

40.88

40.89

40.91

40.90

40.91

40.92

40.92

40.97

41.02

41.08

41.05

41.00

41.29

41.47

41.65

41.28

-

_

443,700

+61,900

Mar.

41.90 

41.9.7

42.07

42.18

42.34

42.40

42.47

42.27

42.58

42.48

42.41

42.60

42.63

42.48

42.49

42.51

42.47

42.62

42.58

42.63

42.63

42.52

42.45

42.41

42.51

42.49

42.50

42.37

42.35

42.33

42.54

510,900

+67,200

Apr.

42.64 

42.53

42.55

42.58

42.54

42.64

42.48

42.45

42.44

42.46

42.42

42.39

42.17

42.37

42.55

42.48

42.42

42.71

42.65

42.83

42.84

42.80

42.90

42.92

42.85

42.86

42.87

42.87

42.87

42 76

_ 1

537,600

+26,700

May

42.51 

42.97

42.92

42.97

42.94

43.00

42.92

42.87

43.06

43.12

43.15

43.14

42.95

43.13

43.17

43.11

42.77

43.06

43.13

43.03

43.10

43.10

43.02

42.97

42.95

42.98

43.01

43.00

42.94

42 99

4s! 98

554,800

+17,200

June

42.98 

42.97

42.99

42.97

43.09

42.95

43.01

42.97

42.92

42.90

42.83

42.92

42.86

42.77

42.75

42.68

42.63

42.66

42.69

42.69

42.60

42.50

42.52

42.48

42.48

42.42

42.40

42.41

42.36

42.51

493,400

-61,400

July

42.27 

42.24

42.15

42.15

42,09

42.08

42.05

42.01

41.94

41.88

41.84

41.71

41.53

41.70

41.74

41.79

41.71

41.66

41.56

41.50

41.39

41.37

41.50

41.39

41.39

41.40

41.28

41.24

41.19

4X 18

4172T

394,400

-99,000

Aug.

fcfi

41.00

40.95

40.94

40.83

40. SO

40.79

40.74

40.82

40.77

40.72

40.69

40.69

40.61

40.60

40.58

40.58

40.54

40.51

40.49

40.45

40.43

40.43

40.41

40.39

40.37

40.34

40.29

40.24

40.25

321,100

-73,300

Sept.

40.21 

46.20

40.17

40.18

40.15

40.14

40.15

40.21

40.13

40.05

39.98

39.99

40.06

39.93

39.87

39.84

39.84

39.86

39.79

39.69

39.67

39.68

39.61

39.58

39.41

39.13

39.35

39.75

39*78

290,700

-30,400

Calendar year 1956.................... * -59,1OO

Water year 1956-57.................... * -108,700

t Usable contents, in acre-feet, at end of month obtained by averaging elevations for last 3 days 

of month and first 3 days of following month to compensate for wind effect. 

t Change In usable contents, In acre-feet. 

Note. Add 4,100.00 ft to obtain elevation above mean sea level, Bureau of Reclamation datum.
576 KLAMATH RIVER BASIN

Link River at Klamath falls, Oreg.

Location.--Lat 42°13', long 121°48', In NW£ sec. 32, T. 38 S., R. 9 E., on left bank 

 600 ft upstream from outlet of Keno Canal and three-eighths of a mile upstream from 

Main Street Bridge at Klamath Falls.

Drainage area. 3.810 sq ml, approximately (Including Crater Lake basin). 

Records available. May 1904 to September 1957.

J

. Water-stage recorder. Datum of gage is 4,083.71 ft above mean sea level, datum of 

929, or 4,085.50 ft above mean sea level, datum of Bureau of Reclamation. Prior to 

Sept. 14, 1912, water-stage recorder, staff and chain gages at several sites within 

half a mile of present site at various datums. Sept. 14, 1912, to Nov. 23, 1923, 

water-stage recorder at site 600 ft downstream at datum 1.19 ft lower.

Average discharge. 53 years, 1,602 cfs (1,160,000 acre-ft per year).

Extremes. Maximum discharge during year, 6,660 cfs Mar. 9. minimum daily, 396 cfs Feb. 27.

T504-57: Maximum discharge, 9,400 cfs May 12, 1904 (gage height at bridge, 

7.30 ft); minimum daily, 17 cfs Dec. 13, 1937.

Remarks. Records good. Regulation since April 1919 by Upper Klamath Lake (see preceding 

page). Water diverted above station by main or "A" Canal of Klamath project (see 

p. 574). Other small diversions above lake. All records presented herein include 

flow in Keno canal which since August 1923 has diverted from Upper Klamath Lake at 

Link River Dam, 4,800 ft above station, for power generation, and returns flow to Link 

River 600 ft below station.

Gage 

i:

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29 

30

31

TotaJ

Mean

Ac-ft

Oct.

2,140 

2,310

2,310

2,350

2,440

2,450

2,450

2,560

2,720

«2,750

2,720

2,670

2,630

2,540

2,490

2,490

2,450

2,490

2,470 

1,900

2,660

2,600

2,540

2,450

2,630

2,620

2,520

2,430

2,390 

2,410

2,410

76,990

2,484

152,700

Nov.

2,570 

2,320

2,320

2,320

2,320

2,300

2,300

2,320

2,320

2,320

2,350

2,330

2,340 

2,290

2,310

2,320

2,330

2,370

2,330 

 2,300

2,300

2,300

2,310

2,310

2,310

2,310

2,290

2,330

2,320 

2,310

69,570

2,319

138,000

Dec.

2.520 

2,330

2,410

2,550

2,560

2,500

2,600

2,670

2,670

2,670

2,690

2,690

2,710 

2,710

2,700

2,700

2,790

2,850

2,870 

2,760

2,830

2,780

2,770

2,770

2,770

2,770

2,770

2,750

2,750

2,750 

2,760

83,220

2,684

165,100

Jan.

2,750 

*2,770

2,770

2,820

2,880

2,860

2,880

2,860

2,850

2,850

2,820

2,840

2,840 

2,840

2,470

2,200

2,190

2,190

2,180 

2,200

2,240

2,240

2,230

2,230

2,230

2,230

2,230

2,470

2,770

2,770 

2,740

79,440

2,563

157,600

Feb.

2.770 

2,760

2,740

2,460

2,540

2,440

2,240

2,260

2,260

2,260

2,280

 2,260

2,240

2,240

2,160

1,970

1,950

1,930

1,730 

1,460

1,460

1,460

1,460

1,290

1,130

566

396

54?

-

------

53,254

1,902

105,600

Mar.

576 

553

1,120

1,320

2,380

3,470

4,100

4,870

5,82,0

5,300

5,210

5,660

6,050 

5,800

6.180

6,170

6,140

6,110

5,720 

5,710

5,570

5,250

5,140

5,110

5,140

 4,940

4,540

4,500

4,470 

4,480

4,610

142,009

4,581

281,700

Apr.

4,740 

4,650

4,600

4,580

4,530

4,300

4,190

3,610

2,700

2,700

2,740

2,470

2,150 

2,160

2,160

2,150

2,160

2,210

1,440 

570

1,860

2,570

1,990

2,000

1,990

2,000

1,980

1,990

2,010 

1,780

80,980

2,699

160,600

May

1,520 

1,480

1,550

1,580

1,580

1,620

1,530

»1,610

1,620

1,840

2,150

2,150

2,280 

2,690

2,690

2,670

2,650

2,870

3,400 

4,410

5,150

4,960

3,970

2,730

2,370

2,390

1,870

1,400

1,430 

1,420

1,410

72,770

2,347

144,300

June

1,390 

1,420

1,420

1,290

1,300

1,410

1,410

1,420

1,410

1,410

1,290

1,420

1,410 

1,410

1,410

1,410

*1,400

1,390

1,310 

1,420

1,410

1,150

1,440

1,520

1,500

1,500

1,520

1,520

1,500 

1 j 500

42,290

1,410

83,880

July

1,500 

1.520

1,500

1,400

1,490

1,480

1,480

1,480

1,460

1,460

1,460

1,460

1,430 

1,460

1,460

1,590

1,430

1,430

1,460 

1,460

1,450

1,280

1,270

1,590

1,230

1,270

1,140

1,180

1,130

 T73IO

1,450

43,310

1,397

85,900

Aug.

1.450 

1,430

1,140

1,170

1,040

1,150

1,160

1,260

1,140

960

1,080

1,100

1,110 

1,080

1,130

1,160

1,090

1,140

1,170 

1,200

1,370

1,070

1,110

790

490

820

1,060

1,300

900 

1,080

1,090

34,240

1,104

67,910

Sept.

1.010 

1,100

1,060

1,030

1,080

1,240

1,270

1,460

1,460

1,460

1,460

 1,460

1,470 

1,460

1,400

1,460

1,460

1,430

1,450 

1,450

1,450

1,460

1,420

1,470

1,410

1,410

1,430

1,280

1,150

1 250

------

40,400

1,347

80,130

Adjusted for diversion by "A" Canal

Mean

Cfsm

In.

Ac-ft

2,591

159,300

2,319

138,000

2,685

165,100

2,563

157,600

1,901

105,600

4,581

L 281,700

2,736

162,800

2,901

178,400

2,383

141,800

2,363

145,300

1,875

115,300

1,924

114,500

Calendar year 1956: 

Water year 1956-57:

Max 

Max

5,980 

6,180

Min 300 

Mln 396

Mean 

Mean

3,111 

2,242

Ac-ft 

Ac-ft

2,252,000 

1,623,000

Adjusted

Calendar year 1956: 

Water year 1956-57:

Mean 

Mean

3,433

2,576

Cfsra 

Cfsm

In. 

In.

Ac-ft 

Ac -ft

2,492,000 

1,865,000

Discharge measurement made on this day.
LOST RIVER BASIN 577

Diversion from Klamath River to Lost River, near Olene, Oreg.

Location. Lat 42°09', long 121°42', in Stfj sec. 30, T. 39 S., R. 10 £., on right bank 

5 miles southwest of Olene.

Records available. April 1931 to September 1957.

Gage. Staff gage read once daily.

Average discharge. 87 years, 33.4 cfs (24,180 acre-ft per year).

Extremes.--1931-57; Maximum daily discharge, 719 cfs Apr. 15, 1951; no flow at times.

Remarks. Records fair. Discharge computed from daily record of gate openings and gage 

readings at wasteway, with coefficients applied based on discharge measurements. Canal 

was built to divert water from Lost River to Klamath River and thereby aid in reclamation of Tule Lake. (See record for Lost River diversion canal near Olene, preceding 

page). Beginning in April 1931, water has been diverted at times from Klamath River 

and released into drain which empties into Lost .River, from which it is re-diverted 

for irrigation of lands near Tule Lake. Beginning in June 1949, figures of discharge 

include pumpage by Miller Hill pumping plant, which operates at times; during June and 

July 1957, pumpage amounted to 3,020 acre-ft.

C ooperat ion.--Rec ords furnished by Bureau of Reclamation.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

5

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

-3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

0

0

0

0

53

194

240

242

217

239

2*8

T5

0

0

0

0

0

0

0

0

0

0

0

0

0

1,471

52.5

2,920

Mar.

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

24

IS

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

39

1.3

77

May 

0

0

0

June

0

0

0

186

310

410

553

545" 587

526

529

466

386

327

260

224

224

161

103

8

36

51

35

0

0

12

50

52

35

0

6,076

203

12,050

July

0

0

0

0

0

0

0

0

0

0

0

0

2

39

24

0

47

3T

0

0

0

0

0

0

0

0

0

0

0

0

0

147

4.7

292

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1956: Max 113 Mln 0 Mean i.o Ac-ft 692

Water year 1956-57: Max 587 Mln o Mean 21.2 Ac-ft 15,340
578 KLAMATH RIVER BASIN

Klamath River at Keno, Oreg.

Location. Lat 42°08', long 121°58i, in SEy sec. 35, T. 39 S., R. 7 E., on left bank 

2 miles west of Keno and 5 miles upstream from Spencer Creek.

Drainage area.--3,920 sq mi, approximately (not including Lost River or Lower Klamath 

Lake basins).

Records available. June 1904 to December 1913, January 1930 to September 1957.

Gage.--Water-stage recorder. Altutude of gage is 3,970 ft (from river-profile map).

prior to Jan. 1, 1914, staff gage at site 2 miles upstream at different datum. Jan. 28, 

1930, to July 26, 1932, water-stage recorder at site 20 ft downstream at datum 2.72 ft 

higher. July 27, 1932, to Nov. 5, 1954, water-stage recorder at site 5 ft upstream at 

datum 0.72 ft higher.

Average discharge. 36 years, 1,680 cfs (1,216,000 acre-ft per year).

Extremes.--Maximum discharge during year, 7,210 cfs Mar. 18 (gage height, 11.04 ft); minimum, 475 cfs Aug. 25 (gage height, 4.12 ft); minimum daily, 478 cfs Aug. 25.

1904-13, 1930-57: Maximum discharge, that of Mar. 18, 1957; minimum, 26 cfs 

Sept. 23, 1956; minimum daily, 60 cfs May 19, 1934.

Remarks. Records excellent. Diversions above station for irrigation. Lost River diverslon canal enters or diverts from Klamath River above station. (See records for Lost 

River diversion canal near Olene and diversion from Klamath River to Lost River near 

Olene). Diversions through Midland Canal beginning July 1, 1947, to Klamath Drainage 

District and through Klamath Strait into Lower Klamath Lake were computed by Bureau of 

Reclamation from gate openings at Midland and Ady. Pumpage into Klamath River at Ady 

was computed by Bureau of Reclamation from hours of pump operation. Plow regulated by 

dam at outlet of Upper Klamath Lake since 1919 and by low dam on Klamath River at Keno 

since September 1931.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, In cubic feet per second)

4.1 

5.0 

7.0

467

890

2,260

9.0 

11.1

4,400

7,310

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3 

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18 

19

20

El 

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

(t)

(*)

Oct.

2,730 

2,890 

2,820 

3,O60

3,050

3,040

3,010

2,990 

3.OOO

*3,060

3,140

3,210

3,270

3,240

3,120

3,060

3,060

3,010 

3,120

2,350

3,200 

3,140

3,04O

3.05O

5,500

5,250

3,150

3,090

5,050

5,080

3,140

94,700

3,055

187, 8OO

2,860

4,940

Nov.

5,200 

5,210 

5,180 

5,190

5,160

5,140

5,140

5, ISO 

5,090

2,990

5,000

3,180

5,500

5,520

5,270

3,350

5,450

5,450 

5,480

5,450

*5,45O 

5,450

5,450

3,450

5,450

5,440

5,4OO

5,41O

5,410

5,400

98,930

3,298

196,200

850

16,570

Dec.

5,53O 

5,O90 

2,890 

2,960

5,020

5,000

2,950

5,O40 

5,050

5,040

5,030

5,140

3,480

5,750

5,550

5,250

5,090

5,120 

3,160

5,140

5,150 

5,150

3,15O

3,140

3,140

5,120

5.10O

5,050

5,050

3.O20

5,030

97.1OO

5,132

192,600

1,580

10,780

Jan.

2,980 

*5,060 

3,050 

2,950

2,920

2,850

2,790

2,760 

2,690

2,680

2,690

2,740

2,740

2,740

2,400

2,110

2,010

1,970 

2,010

2,030

2,070 

2,040

2,050

2,050

2,O50

2,010

2,O40

2,520

2,550

2,590

2,640

76 , 50O

2,468

L51,700

16,480

2,150

Feb.

2,650 

2.680 

2,670 

2,590

2,480

2,460

2,040

1,770 

1,700

1,690

»1,68O

1,640

1,630

1,580

1,560

1,630

1,850

2,060 

2,220

1,870

1,980 

2,110

2.05O

2,040

1,910

2,460

2,460

2,480

-

57,720

2,061

114,500

17,880

10,510

Mar.

2,080 

1,350 

1,400 

2,000

5,500

4,860

5,570

5,920 

6,540

6,450

6,560

6,450

6,840

6,910

6,960

7,090

7,100

7.170 

7,000

6.82O

6,760 

6,61O

6,460

6,290

*6,120

6,02O

5,800

5,650

5,490

5,470

5,470

174,050

5,615

545,200

605

17,850

Apr.

5,650 

5,770 

5,800 

5,760

5,620

5,530

5.59O

5,140 

5,720

2,970

2,880

2,820

2,600

2,550

2,660

2,790

2,820

2,750 

3,160

2,180

1,250 

2,420

2,580

2,350

2,570

2,590

2,400

2,410

2,410

2,280

101,200

5,573

^oo,7oo

1,450

17,420

May

1,850 

1,810 

1,870 

1,920

1,980

2,070

2,220

2,150 

*2 , 1OO

2,160

2,400

2,380

2,460

2,720

2,800

2,840

2,900

3,260 

3,930

5,10O

5,66O 

5,800

5,540

4,180

5,420

3,340

2,750

2,110

1,910

1,770

1 55O

88.93O

2,869

176,400

2,400

9,960

June

1,490 

1.740 

1,690 

1,480

1,210

1,050

705

497 

5BT

626

670

796

862

962

1,090

1,170

*1,280

1,150 

791

879

1.O3O 

879

938

1.14O

1,420

1.27O

1,150

1,210

1,2OO

1,190

32,122

1,O71

63,710

9,520

4,O2O

July

1,240 

1,270 

1,280 

1,270

1,270

1,280

1,500

1,510 i,Soo

1,270

1,240

1,120

932

944

962

1,030

1,290

1,270 

1,250

1,250

1,250 

1,260

1,270

1,310

1,500

1,290

1,500

1,290

1,290

*1,270

1,280

38,188

1,252

75.74O

1Q,520

5,270

Aug.

1,290 

1,500 

1.510 

1,310

1,300

1,290

1,290

1,290 

1,290

1,290

1,290

1,290

1,290

1,280

1,280

1,260

1,290

1,260 

1,260

1,270

1,270 

1,260

1,260

984

478

940

1,270

1,26O

1,260

1,230

1,250

38,192

1,232

75,750

5,920

6,040

Sept.

1,270 

1,530 

1,440 

1,520

1,590

1,620

1,640

1,650 

1,560

1,550

1,510

1,5OO

*1,510

1,580

1,650

1,640

1.66O

1,620 

1,600

1,640

1,690 

1,690

1,660

1,640

1,630

1,590

1,71O

1,87O

1,870

2,OOO

48,390

1,613

95,980

5,040

2,520

Calendar year 1956: Max 7,080 Mln 713 Mean 3,844 Ao-ft 2,783,OOO

Water year 1956-57: Max 7,170 Mln 478 Mean 2,592 Ao-ft 1,876,OOO

* Discharge measurement made on this day.

t Diversion at Ady (acre-feet). Total for calendar year 1956, 44,350 acre-ft; for water year 

1957, 74,910 acre-ft.

* Pumpage at Ady (acre-feet). Total for calendar year 1956, 166,200 acre-ft; for water year 1957, 

106,000 acre-ft.
KLAMATH RIVER BASIN 579

Fall Creek at Copco, Calif.

Location. La t 41°58', long 122°22<, in Nl£ sec. 36, T. 48 N., R. 5 W., on right bank 

1,500 ft upstream from mouth and 0.8 mile south of Fall Creek powerplant and Copco 

Post Office.

Drainage area.--20 sq mi, approximately. 

Records available. July 1928 to September 1957.

Gage.--Water-stage recorder. Datum of gage is 2,362.77 ft above mean sea level, datum 

of 1929, supplementary adjustment of 1947. Prior to Dec. 16, 1937, staff gage 

1,000 ft downstream at different datum. 

at present site and datum.

. , 

ec. 16, 1937, to Aug. 23, 1949, staff gage

Average discharge. 29 years, 38.2 cfs (27,660 acr-e-ft per year).

Extremes.--Maximum discharge during year, 271 cfs Feb. 24 (gage height, 2.86 ft), from 

rating curve extended above 90 cfs as explained below; minimum, 36 cfs Aug. 11; minimum daily, 40 cfs June 18, 19.

1928-57: Maximum discharge, 875 cfs Dec. 22, 1955 (gage height, 4.35 ft), from 

rating curve extended above 90 cfs on basis of slope-area determination at gage heights 

2.42 and 4.35 ft); minimum, 3.6 cfs Sept. 13, 1953; minimum daily, 24 cfs for many days 

June to September 1937.

Remarks.--Records good. Occasional diurnal fluctuation caused by powerplant above station. Two small diversions above station for irrigation of about 100 acres. Power 

company diverts about 4 cfs to Fall Creek (above station) from Spring Creek (tributary to Jenny Creek).

Rating table, water year 1956-57 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Dec. 20 to Jan. 9)

1.3 

1.5 

2.0 

2.5

40

59

117

195

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

50 

49

49

49

49

49

49

47

47

48

*47

47

46

46

47

47

47

47

47

47

47

46

46

46

46

47

46

46

48

61

50

1,483

47.8

2,940

Nov.

ft46

45

46

45

45

45

45

45

45

45

46

46

45

45

46

45

45

45

46

46

*46

46

46

44

43

45

4242"

1,358

45.3

2,690

Dec.

42 

42

42

42

42

42

41

IT

41

42

64

54

59

54

54

55

55

55

55

55

55

55

54

54

54

54

54

54

54

53

53

1,571

50.7

3,120

Jan.

54 

53

53

53

53

53

*53

54

54

54

53

53

56

54

54

52

52

51

51

50

50

48

48

48

48

464"6"

46

46

*46

47

1,579

50.9

3,130

Feb.

fi

47

47

51

52

*55

55

55

56

56

56

60

69

74

76

67

64

61

60

63

63

63

176 ~9T

116

87

77

1,900

67.9

3,770

Mar.

72 

70

70

82

88

90

77

73

84

70

93

120 ~87

78

78

77

72

74

71

70

69

67

66

6576-

69

66

66

*66

66

74

2,346

75.7

4,650

Apr.

&

66

64

64

63

62

61

59

59

58

58

57

57

55

55

55

55

54

54

54

54

52

52

52

52

52

51

BT

51

1,716

57.2

3,400

May

t

50

49

49

49

43

43

49

*50

50

50

50

49

49

48

48

49

48

49

47

47

47

47

47

4646-

46

46

46

46

1,497

48.3

2,970

June

tf45

45

44

43

43

43

43

43

42

42

42

42

42

41

41

40

40

*43

45

44

43

42

42

42

42

42

42

41

1,279

42.6

2,540

July

42 

42

42

42

42

43

43

43

43

44

45

45

45

45

45

46

46

46

46

46

46

46

46

46

46

47

4T

46

46

46

46

1,389

44.8

2,760

Aug.

*46 

47

17

47

47

47

47

47

47

47

47

47

47

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

46

47

46

1,439

46.4

2,850

Sept.

i46

46

46

46

46

46

47

47

47

47

47

47

47

*46

46

47

47

47

47

47

47

46

47

48

52

48

47

48

1,407

46.9

2,790

Calendar year 1956: Max 249 Min 41 Mean 58.4 Ac-ft 42,390

Water year 1956-57: Max 176 Min 40 Mean 52.0 Ac-ft 37,610

Discharge measurement made on this day.

510529 O - 59 - 38
580 KLAMATH RIVER BASIN

Klamath River below Pall Creek, near Copoo, Calif.

Location.--Lat 41°58', long 122°22', In NE£ sec. 36, T. 48 N., R. 5 W., on right bank 

500 ft downstream from Pall Creek, half a mile downstream from Copco No. 2 plant of 

The California Oregon Power Co., and 1 mile south of Copco.

Drainage area. 4,370 sq mi, approximately.

Records available. October 1923 to September 1957. Prior to October 1928, published as 

"Klamath River near Copco."

Gage.--Water-stage recorder. Altitude of gage is 2,310 ft (from river-profile map). 

Prior to Oct. 1, 1928, at site half a mile upstream (above Pall Creek) at different 

datum.

Average discharge. 34 years, 1,768 cfs (1,280,000 acre-ft per year), including Pall 

Creek.

Extremes. Maximum discharge during year, 8,500 cfs Mar. 12 (gage height, 6.84 ft); minimum, 266 cfs July 27 (gage height, 1.69 ft); minimum daily, 286 cfs June 23.

1923-57: Maximum discharge, 12,000 cfs Dec. 21, 1955 (gage height, 8.15 ft), from 

rating curve extended above 6,600 cfs by logarithmic plotting; minimum, about 10 cfs 

above Pall Creek several times in 1925-26; minimum daily, 83 cfs at present site 

Aug. 2, 1931.

Remarks. Records excellent. Complete regulation by Upper Klamath Lake and powerplant 

above station; diversions above station.

Rating table, water year 1956-57 (gage height, in feet, and 

discharge, in cubic feet per second)

1.7 

2.0 

2.5 

3.0

270

430

840

1,360

4.0 

6.0 

7.0

2,700

6,500

8,900

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3 

4

5

6

7

8

9

10

11

12

13

14 

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30 

31

Total

Mean

Ac-ft

Oct.

2,560 

3,500 

3,400 

3,380

3,430

3,400

3,400

3,380

3,330

3,430

*3,470

3,470

3,480

3,480 

3,470

3,470

3,480

3,470

3,470

3,210

3,480

3,470

3,430

3,400

3,470

3,500

3,470 

3,470

3,470

5.810 

3,580

106,230

3,427

210,700

Nov.

3,600 

3,640 

3,640 

3,600

3,500

3,470

3,470

3,500

3,530

5,530'

5,400

3,470

3,620

3,650 

3,690

3,710

3,760

5,780

5,850

3,850

3,760

3,760

*3,670

3,740

3,740

3,760

3,740 

3,580

3,640

3,670

109.320

3,644

216,800

Dec .

3,570 

5,020 

3,380 

3,580

5,360

3,360

3,330

3,400

3,450

3,360

3,850

3,940

4,080

4,250 

3,940

3,670

5,450

5,400

5,400

3,580

3,400

5,400

5,420

3,420

5,450

5,470

5,420 

5,400

5,280

5 220 

5*420

108,210

3,491

214,600

Jan.

5,400 

5,400 

5,580 

3,550

5,580

5,170

*5,550

2,900

2,670

5,010

3,020

2,870

5,120

2,940 

2,480

2,940

2,750

2,260

2,050

1,910

2,450

2,580

2,470

2,600

2,640

2,450

1,500 

2,050

2,890

5,170 

a5,100

85,850

2,769

170,500

Feb.

a2 , 800 

a2,75o 

a2,550 

a2,600

a2,600

a2 , 700

*a2,500

2,460

1,580

2,110

2,160

2,170

2,170

1,650 

2,560

2,130

1,290

27500"

2,570

2,440

2,690

2,690

2,890

5,180

5,090

3,260

5,420 

3,020

-

70,230

2,508

159,500

Calendar year 1956: Max 9,050 Min 281

Mar.

2 , 840 

2,750 

1,750 

2,180

3,480

5,650

6,520

6,180

6,680

6,960

7,140

8,100

7,480

7,670 

7,670

7,720

7,910

7,840

7,860

7,550

7,550

7,190

7,080

6,550

7,080

6,680

6,090 

6,050

*6,090

6,050 

5,940

195,860

6,254

584,500

Apr.

6.520 

6,200 

6,250 

6,270

6,050

5,740

6,050

5,460

4,790

3,540

3,280

3,050

3,190

2,760 

3,280

3,330

3,330

3,510

3,510

2,720

875

2,690

3,020

2,720

2,610

2,570

3,020 

2,000

2,900

--2-'-8-80-

113,515

5,777

224,800

May

2,590

2,730 

2,630 

1,810

1,510

2,220

2,770

2,840

2,560

*2,640

2,350

2,420

3,220

3,170 

3,120

3,270

3,260

3,310

3,920

5,270

6,160

6.270

6,270

4,810

3,890

3,820

2,980 

2,780

2,040

1,810 

2,460

100,900

3,255

200,100

June

2,190 

1,450 

5,270 

1,940

1,760

1,580

1,420

382

468

1,280

1,400

1,400

1,570

 1,720 

1,150

416

1,560

2,080

1,340

*1,770

1,670

1,150

286

1,540

1,560

1,860

2,020 

2,130

1,640

322

44,304

1,477

87,880

' July

1,720 

2.46Q 

2,500 

1,190

1,620

1,260

802

1,180

1,560

2,000

1,940

1,860

1,110

354 

l,I2o

1,640

1,550

1,620

1,840

1,490

868

1,420

1,740

1,750

2,060

2,080

1,820 

450

1,520

1,690 

1,800

47,794

1,542

94,800

Aug.

*1,870 

1,820 

1,640 

1,560

1,840

1,520

1,530

1,530

1,520

1,500

1,490

1,410

1,490

1,500 

1,500

1,490

1,480

1,010

1,390

1,520

1,560

2,050

2,400

1,170

888

1,300

1,560 

1,580

1,580

1,590 

1,580

47,868

1,544

94,940

Sept.

1,420 

556 

1,600 

1,860

2,110

2,020

1,950

1,560

1,700

2,170

1,950

2,050

1,740

1,480 

1,800

*1,830

1,940

1,900

2,050

2,000

1,880

1,930

2,010

1,920

2,130

2,010

1,850 

2,550

1,950

2,050

56,046

1,868

111,200

Mean 4,256 Ac-ft 5,082,000

Water year 1956-57: Max 8,100 Min 286 Mean 2,970 Ac-ft 2J150.000

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement, recorded range 

in stage, powerplant output records, and records for Pall Creek at Copco.
KLAMATH RIVER BASIN 581

Keene Creek at Hyatt Prairie, near Ashland, Oreg.

Location (revised).--Lat 42°10'15", long 122°28 I 40", in NW£ sec. 21, T. 39 S., R. 3 E., 

on right bank a quarter of a mile upstream from Burnt Creek, half a mile downstream 

from Hyatt Prairie Reservoir dam, and 12 miles east of Ashland.

Drainage area. 12.1 sq mi (revised).

Records available.--April 1917 to June 1922 (fragmentary), November 1948 to September 1957.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,715 ft (by

Darometer). Apr. 1, 1917, to June 30, 1922, water-stage recorder at site half a mile 

upstream at different datum.

Average discharge. 8 years (1949-57), 13.7 cfs (9,920 acre-ft per year).

Extremes. Maximum daily discharge during year, 70 cfs Aug. 16-22; minimum daily, 0.3 cfs 

for many days.

1917-22, 1948-57: Maximum discharge, 751 cfs May 3, 1954 (gage height, 5.33 ft), 

caused by failure of flashboards on spillway of Hyatt Prairie Reservoir dam, from 

rating curve extended above 50 cfs on basis of computation of peak flow over Columbustype control; no flow at times.

Remarks.--Records fair. Regulation since December 1922 by Hyatt Prairie Reservoir (see 

p. 597). Practically entire flow diverted 1 mile below station by Keene Creek Canal 

for irrigation near Ashland and Talent in Rogue River basin.

Revisions.--WSP 1245: Drainage area.

Rating table, water year 1956-57 (gage height, in feet, and discharge, 

in cubic feet per second)

1.7

1.8

1.9

2.0 1.2

2.1

2.2

2.3

2.4

2.0

3.1

7.5

2.5

2.6

3.1 71

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

50 

31

Total

Mean

Ac-ft

Oct.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

*.3

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.6

.7

.4

.4

.4

.4

.4

10.6

0.34

21

Nov.

0.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.6

75

.4

.4

*.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

13.1

0.44

26

Dec.

~0.3

.3

.3

.3

.3

.3

.3

.3

.7

2.8

272

2.6

.8

.6

.2

.2

.0

.9

.9

.8

.8

.7

.7

.6

.6

.6

.6

.6

.5 

.5

26.6

0.86

53

Jan.

0.5

*74

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.4

.4

.4

.4

.4 

.3

12.3

0.40

24

Feb.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.5

.5

.6

.6

.7

.7

*.6

.6

.6

.6

.9

2.2

2.0

2.7

2.4

2.2

-

22.0

0.79

44

Mar.

2.0

1.7

1.6

1.8

1.9

2.2

2.0

2.2

2.2

1.9

1.9

1.7

1.6

1.6

1.5

1.3

1.2

T72

1.4

1.3

1.2

1.2

1.2

1.5

2.2

2.0

2.0

2.0

2.0

2.0 

2.0

53.5

1.73

106

Apr.

1.9

1.9

2.0

1.9

1.9

2.2

2.2

2.2

2.0

2.0

2.2

2.2

2.4

2.8

5.2

8.1

9.8

12

20

40

30

15

10

5

4

3

2.5

2.0

*1.8

1.1

199.9

6.66

396

May

2.4

5^

8.4

9.8

11

12

10

11

12

12 _

12

13

13

13

14

13

12

12

13

14

21

25

22

18

16

14

12

11

9.8

12 

51

417.2

13.5

828

June

39

41

26

1.7

31

32

34

34

42

54

59

59

59

51

28

20

*20

20

29

40

40

40

40

40

40

50

58

62

61

61

1,201.7

40.0

2,380

July

61

61

61

61

61

61

61

61

59

59

59

59

61

59

59

59

59

59

59

59

58

58

58

58

58

39

31

1.8

33 *40 

46

1,678.8

54.1

3,330

Aug.

53

57

58

58

58

58

58

58

58

58

58

58

64

66

66

70

70

70

70

70

70

70

65

65

65

65

65

55

45

45 

45

1,891

61.0

3,750

Sept.

45

45

40

38

38

38

38

38

40

50

50

47

*48

40

1.3

.3

5.0

2.8

2.7

2.7

2.7

2.7

2.7

3.0

7.2

7.5

7.5

7.5

7.5

5.0

663.1

22.1

1,320

Calendar year 1956: Max 67 Mln 0.3 Mean 11.5 Ac-ft 8,290

Water year 1956-57: Max 70 Mln 0.3 Mean 17.0 Ac-ft 12,280

* Discharge measurement made on this day.

Note.--No gage-height record Apr. 19-28, Aug.

weather records, recorded range in stage, and r

16 to Sept. 11; discharge estimated on basis of 

;cords for Hyatt Prairie Reservoir.
582 KLAMATH RIVER BASIN

Shasta River near Yreka, Calif.

Location. Lat 41°49 I 30", long 122°35'40", in Eg- sec. 24, T. 46 H., R. 7 W., on right 

bank 0.5 mile upstream from mouth and 7 miles north of Yreka.

Drainage area. 796 sq mi.

Records available.--October 1933 to December 1941, December 1944 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 2,000 ft (from topographic map). Prior 

Fo Nov. 2, 1933, staff gage at same site and datum.

Average discharge. 20 years (1933-41, 1945-57), 171 cfs (123,800 acre-ft per year).

Extremes.--Maximum discharge during year, 2,000 cfs Mar. 12 (gage height, 6.30 ft); minimum, 9.0 cfs July 7.

1933-41, 1944-57: Maximum discharge, 6,090 cfs Dec. 22, 1955 (gage height, 

9.43 ft), from rating curve extended above 4,100 cfs; minimum, 3.4 cfs Aug. 13, 1939, 

when about 2 cfs were being diverted around gage.

Remarks. Records good. Plow partly regulated by Lake Dwinnell beginning in 1928

(allowable capacity, 30,000 acre-ft). Many diversions above station for irrigation.

Revisions. WSP 1285: Drainage area.

Rating table, water year 1956-57 (gage height, in feet, and 

discharge, in cubic feet per second)

2.5

2.6 

2.8 

3.0

9.5

16

65

3.2 

3.5 

4.0 

4.5

110

205

415

665

5.0 

5.5

6.0

965

1,310

1,720

Discharge,, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

151

121

116

m

127

127

130

135

148

151

188

198

194

191

191

191

184

180

184

184

184

188

188

191

191

202 

202

194

202

329 2~9T

5,573

180

11,050

Nov.

265

237

225

217

217

217

213

213

209

209

205

202

202

198

198

*202

198

198

194

194

191

191

188

188

191

191 

191

191

198

198

6,131

204

12,160

Dec.

T38" 198

198

202

205

205

202

202

198

205

241

317 293"

277

245

237

229

225

221

221

221

217

213

213

209

205 

198

198

198

198 

198

6,787

219

13,460

Jan.

194

188

184

180

177

177

177

184

*184

194

202

213

285

313

265

237

225

213

221

281

317 265"

233

229

225

209 

205

202

198

198 

194

6,769

218

13,430

Feb.

205 213"

213

205

205

205

213

233

237

221

213

213

221

249

265

257

249

241

237

237

237

237

245

619

1,160

1.210 

*1,080

780

-

10,100

361

20,030

Mar.

570

438

379

402

600

540

490

424

397

374

445

1,610

846

643

540

520

490

465

460

438

406

374

352

343

374

406

366

348

348

366

370

15,124

488

30,000

Apr.

374

3BT

334

317

301

289

277

273

261

261

253

237

229

221

221

198

164

148

164

209

209

174

141

*127

113

100 

91

86

100

86

6,319

211

12,530

May

88

105

124

113

100

105

91

*84

82

84

86

82

86

93

93

98

96

98

138

164

174

160

157

148

110

98 

88

78

76

103 

108

3,310

107

6,570

June

8678"

65

59

54

58

60

59

59

60

67

*65

6782'

84

82

71

58

54

56

58

46

38

45

56

53 

44

44

37

UL

1,774

59.1

3,520

July

29

31

36

26

18

15

1013"

12

13

12

15

18

25

29

26

19

28

47

24

21

22

24

25

16

14 

19

15

15

13 

15

645

20.8

1,280

Aug.

15

2T

23

19

31

47

60

54

50

26

18

24

28

28

26

54

42

31

24

29

27

*28

24

25

19

20 

34

56

62

65

91_

1,103

35.6

2,190

Sept.

82

80

65

62

60

59

64

65

76

76

73

84

86

96

96

100

loo

110

108

100

93

110

116

103

84

88 

124

245

249

22T

3,075

102

6,100

Calendar year 1956: Max 2,060 Min 46 Mean 270 Ac-ft 196,200

Water Hauei' year yeai' 1956-57: J. 3ou - j i \ Max pmx 1,610 ± , DJ.U nin Min ±<J 10 roe Mean an J.DO 183 AC-i Ac-ft u j.o£ 132,300 j j^u

Peak discharge (base, 40O cfs). Feb. 26 (9 p.m.) 1,500 cfs (5.74 ft); Mar. 5 (9:3o a.m.) 665 cfs

(4.50 ft); Map. 12 (8 a.m.) 2,OOP cfs (6.50 ft); Mar. 26 (6 a.m.) 458 efs (4.05 ft).__________

Discharge measurement made on this day.
KLAMATH RIVER BASIN 583

Scott River near Fort Jones, Calif.

Location. Lat 41°38'35", long 123°00'35", In NW£ sec. 28, T. 44 N., R. 10 W., on right 

bank 150 ft south of road from Fort Jones to Scott Bar, 1.8 miles upstream from Snow 

Creek, and 10.5 miles downstream .from Fort Jones.

Drainage area.--662 sq ml.

Records available . December 1941 to September 1957.

Gage.--Water-stage recorder. Datum of gage Is 2,625.80 ft above mean sea level (levels 

By Corps of Engineers).

Average discharge. 15 years (1942-57), 633 cfs (458,300 acre-ft per year).

Extremes.--Maximum discharge during year, 7,210 cfs Feb. 26 (gage height, 10.45 ft); minimum, 50 cfs Aug. 23.

1941-57: Maximum discharge, 38,500 cfs Dec. 22, 1955 (gage height, 21.40 ft), from 

rating curve extended above 5,500 cfs on basis of slope-area determination of peak 

flow; minimum, 20 cfs Sept. 14, 15, 1955.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Diversions for Irrigation of about 30,000 acres above station.

Revisions (water years). WSP 1285: Drainage area. WSP 1445: 1942-43(M). 1946(M), 1948.

Rating table, water year 1956-57 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Aug. 1 to Sept. 17)

1.5 50

1.6 58

2.0 94

2.5 154

3.0 248

4.0 570

5.0 1,060

6.0 1,730

7.0 2,640

8.0 3,690

9.0 4,920

10.0 6,400

Discharge, in cubic feet-per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

83 

82

85

82

81

81

80

80

82

85

85

84

84

87

87

88

88

88

88

88

89

89

94

94 

99

190 

258

183

174

854 

664

4,476

144

8,880

Nov.

414 

341

306

301

309

313

329

335

332

338

347

323

293

275

255

244

301

362

298

262

*237

224

216

206 

199

192 

186

181

175

172

8,266

276

16, 400

Dec.

168 

164

160

160

167

160

153

147

144

TBT

742

1.500

1,170

880

646

534

458

414

375

344

320

298

280

270 

260

246 

233

226

220

218 

214

11,228

362

22,270

Jan.

210 

206

202

193

184

174.

183

192

*177

175

199

204

233

306

293

282

262

246

253

486

344" 510

295

288 

272

246 

a240

a240

a235

a235 

a230

7,795

251

15,460

Feb.

a23o 

a225

a225

a220

a220

a215

*206

?T4

212

208

208

208

216

272

309

318

320

338

350

362

388

510

845

3,190 

4,910

*5.460 

4,940

2,730

.......

28,049

1,002

55,630

Mar.

1,980 

1,650

1,410

1,510

2,870

2,490

2,470

2,070

2,520

2,040

1,960

5.760

2,690

2,150

1,850

1,660

1,490

1,400

1,290

1,250

1,190

1,130

1,060

1.010 

1,180

1,300 

1,250

1,250

1,370

*1,380 

1,380

54,010

1,742

107,100

Apr.

1,290 

1,150

1,130

1,170

1,240

1.550

1,230

1,140

1,120

1,110

1,110

1,100

1,060

1,280

1,200

1,080

1,010

982

946

920

880

845

825

815 

805

*800 

795

170

1,060

1,220

31,513

1,050

62,510

May

1,310 

1,430

1,200

1,070

1,130

1,340

1,500

1,520

1,360

1,220

1,090

1,010

1,060

1,060

964

930

1,010

2.260

2,160

1,580

*1,320

1,160

1,040

982 

1,010

1,070 

1,190

1,310

1,410

1,460 

1,480

39,636

1,279

78,620

June

1,470 

1,360

1,250

1,200

1,160

1,050

930

890

815

745

690

659

610

558

510

466

430

404

378

366

353

332

318

*304 

293

280 

288

277

265

228

18,879

629

37,450

July

T59" 216 

197

193

186

168

159

156

154

147

141

139

141

147

140

136

130

119

92

93

103

110

115

121 

148

108 

104

103

101

101 

100

4,267

138

8,460

Aug.

~95 100 

97

93

93

94

91

92

91

96

91

86

81

80

76

74

72

70

64

62

*60

59

56

56 

56

56 

56

54

5T

54 

54

2,316

74.7

4,590

Sept.

54 

55

53

52

52

53

53

53

53

53

52

*54

53

53

54

54

58

60

60

57

57

60

58

56 

58

60 

65

67

70

21

1,711

57.0

3,390

Calendar year 1956 : Max 10,700 Min 40 Mean 1,019 Ac-ft 730,000

Water year 1956-57 : Max 5,460 Min 52 Mean 581 Ac-ft 420,800

Peak discharge (base. 2,000 cfs). Feb. 26 (10:30 p.m.) 7,210 cfs (10.45 ft) ; Mar. 5 (7 a.m.) 

3,240 cfs (7.59 ft); Mar. 9 (l p.m.) 2,940 cfs (7.30 ft); Mar. 12 (l p.m.) 4,400 cfs (8.60 ft); 

May 18 (7 p.m.) 2,920 efe (7.28 ft).________________________________________________

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of normal recession and records for Shasta 

River near Yreka.
584 KLAMATH RIVER BASIN

Klamath River near Seiad Valley, Calif.

Location.--Lat 41°51'20", long 123°13'50", in SE^ sec. 4, T. 46 N., R. 12 W., on right 

bank 0.4 mile upstream from Bittenbender Creek, 1.4 miles downstream from Grider Creek, 

and 2.2 miles west of town of Seiad Valley.

Drainage area.--6,980 sq mi, approximately.

Records available.--November 1912 to June 1925, July 1951 to September 1957.

Sage. Water-stage recorder. Altitude of gage is 1.320 ft (from river-profile map). 

November 1912 to June 1925, staff gage at site 3j miles upstream at different datum.

Average discharge. 17 years (1913-24, 1951-57), 4,122 cfs (2,984,000 acre-ft per year).

Extremes. Maximum discharge during year, about 25,000 cfs Feb. 26 (gage height unknown); 

minimum daily, 895 cfs July 15.

1912-25, 1951-57: Maximum discharge, 122,000 cfs Dec. 22, 1955 (gage height, 

29.2 ft, from floodmarks), from rating curve extended above 25,000 cfs on basis of 

slope-area determination of peak flow; minimum daily, 320 cfs Nov. 25, 1917.

Remarks.--Records excellent except those for periods of no gage-height record, which are 

fair. Flow considerably regulated by reservoirs and powerplants above station. Large 

diversions above station for irrigation.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Feb. 25 Feb. 26 to Sept. 3O

2.5 1,350

4.0 2,650

6.0 5,360

8.0 8,990

10.0 13,900

12.0 19,9OO

2.0 840

2.5 1,090

3.0 1,420

4.0 2,380

6.0 5,210

9.0 11,200

13.0 23.,400

Discharge, In cubic feet per second, water year October 19S6 to September 1957

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24 

25

26

27

28 

29

30

31

Total

Mean

Ac-ft

Oct.

1,770 

3,630

3,650 

3,680

3,700

3,730

3,720

3,740

*3,660

3,700

3,810

3,830

3,730

3,770

3,770

3,740

3,760

3,800

3,780

3,810

3,510

3,800

3,850

3,780 

3,920

4,560

4,320

4,140 

4,100

7.010

5,720

121,490

3,919

241,000

Nov.

4.680 

4,670

4,600 

4,600

4,520

4,430

4,420

4,400-

4,460

4,460

4,220

4,340

4,310

4,360

4,340

4,360

4,490

4,670

4,610

*4,560

4,460

4,400

4,280

4,300 

4,340

4,300

4,300

4,270 

4.150

4,240

132,740

4,425

263,300

Dec.

4,240 

5.800

3,830 

3,970

4,000

3,960

3,900

3,960

3,940

4,150

6,060

7,990

7,420

6,900

6,030

5,280

4,940

4,670

4,540

4,430

4,380

4,300

4,280

4,270 

4,250

4,210

4,150

4,140 

4,130

3 ,820

4,080

144,020

4,646

285,700

Jan.

4,070 

4,030

3,990 

3,960

3,940

3,940

3,700

*3,520

3,330

3,510

3,610

3,590

3,860

4.100

3,590

3,720

3,590

3,270

3,140

3,160

3,320

3,500

3,390

3,340 

3,460

3,430

3,200

1.720 

3,420

3,700

3,850

109,950

3,547

218,100

Feb.

3,610 

3,800

2,900 

3,470

3,140

3,350

3,330

3,150

3,110

2.690

2,690

2,980

2,980

3,140

3,860

3,370

3,300

3,270

3,870

3,650

4,000

4,420

5,040

11,400 

* 17, 500

20.000

18,000

15,000

161,020

5,751

319,400

Mar.

11,000 

9,000

6.000 

10,000

12,000

14,000

15,000

13,500

13,000

12 , 000

14,000

18.000

16,000

15,000

14,000

13,000

12,000

11,000

10,500

10,000

9,600

9,200

8,800

8,500 

9,500

11,000

10,000

9,500 

10,500

10,300

10,200

358,100

11,550

710,300

Apr.

10.400 

10,000

9,800 

9,800

9,760

9,830

9,190

9,190

8,370

7,060

6,620

6,280

6,260

6,450

6,410

6,260

6,060

6,030

5,960

5,780

4,650

3.520

5,350

4,850 

*4,840

4,670

4,820

4,890 

4,650

5,630

203,380

6,779

403,400

May

5,760 

6,060

5,700 

4,850

.4,200

4,580

5,760

6,170

5,720

5,180

5,190

4,780

5,190

5,560

5,560

5,190

5,510

9.000

7,400

6,400

*7,200

8,530

8,330

7,590 

6,550

6,230

5,160

5,920 

5,610

5,090

4,650

184,620

5,955

366,200

June

5.160 

4,630

3,630 

4,210

3,910

3,760

3,110

3,000

1,970

1,930

2,600

 2,680

2,710

2,880

2,640

2,090

1,580

2,640

2,580

2,270

2,480

2,740

1,540

1.190 

2,220

2,470

2,510

2,590 

2,590

1,970

82,300

2,743

163,200

July

1,060 

2,650

2,710 

2,446

1,620

1,990

1,540

1,260

1,710

2,050

2,300

2,290

1,630

1,480

695

1,620

1,950

1,820

2,040

1,900

1,640

1,160

2,000

1,850 

*2,270

2,300

2,170

1,580 

1,030

1,740

2,020

56,715

1,830

112,500

Aug.

2,050 

1,960

2,010 

1,760

2,030

1,740

1,720

1,740

1,730

1,710

1,700

1,680

1,600

1,690

1,670

1,670

1,670

1,520

1,270

1,620

1,640

1,760

2.200

2,670 

1,320

1.090

1,680

1,700 

1,730

1,730

1,760

53,220

 1,717

105,600

Sept.

1,740 

1,390

1,040 

1,860

2,180

2,070

2,150

1,880

1,830

2,280

*1,950

2,140

1,910

1,750

1,750

1,790

2,260

2,040

1,990

2,140

2,020

2,020

2,240

2,290 

2,140

2,220

2,340

2.600 

2,590

2,570

61,170

2,039

121,300

Calendar year 1956: Max 38,100 Mln 1,030 Mean 7,123 Ac-ft 5,171,000

Water year 1956-57: Max 2O,OOO Mln 895 Mean 4,572 Ac-ft 3,310,000

* Discharge measurement made'on this day.

Note. No gage-height record Oct. 2-4, Feb. 26 to Mar. 29, May 18-21; discharge estimated on basis 

of 1 discharge measurement and records for station at Somesbar.
KLAMATH RIVER BASIN 585

Indian Creek near Happy Camp, Calif.

Location.--Lat 41°50'50", long 123°23'10", in SEv sec. 22, T. 17 N., R. 7 E., on left 

bank 1.5 miles upstream from Slater Creek, 3.8 miles north of town of Happy Camp, and 

4.5 miles upstream from mouth.

Drainage area. 118 sq mi.

Records available. September 1911 to September 1921, December 1956 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 1,300 ft (from topographic map). Prior 

to December 1956, staff gages at sites 0.25 mile upstream at different datums.

Extremes.--Maximum discharge during period, 8,400 cfs Feb. 26 (gage height, 19.85 ft), 

from rating curve extended above 4,200 cfs by logarithmic plotting; minimum, 40 cfs 

Sept. 24, 25.

1911-21, 1956-57: Maximum discharge observed, 8,430 cfs Feb. 17, 1912 (gage height, 

10.6 ft, site and datum then in use), from rating curve extended above 1,300 cfs; minimum observed, 20 cfs Aug. 19 to Sept. 6, 1914.

Flood of Dec. 21, 1955, reached a stage of 29.0 ft, from floodmarks (discharge, 

23,000 cfs on basis of slope-area determination of peak flow).

Remarks. Records good. Small diversions above station for irrigation.

Rating table, Dec. 15, 1956, to Sept. 30, 1957 (gage height, In 

feet, and discharge, In cubic feet per second)

2.0 

2.2 

2.5

3.0

40

52

76

140

3.5 

4.0 

5.0

240

365

660

9.0

13.0

17.0

2,210 

4,250 

6,60O

Discharge, in cubic feet per second, December 1956. to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct. Hov.

ties

Dec.

.

-

-

-

-

_

-

-

-

-

_

~

t671

504

423

358

310

270

235

215

193

179

166

154

142

132

126

121

117

112

_

-

-

Jan.

107

102

99

96

92

8S

95

*98

90

90

96

103 

124

158

219

197

166

153

164

500

245

203

173

163

151

132

121

119

111

107

106

4,268

13S

8,470

Feb.

119

110

104

102

*101

98

1(56

128

126

125

122

122 

165

335

420

438

462

480

459

444

528

751

1,150

*4,O90

*3,310

6.500

3,060

1,850

-

25,605

914

50,790

Mar.

1,370

1,11O

950

1,560

1,900

1,950

1,750

1,420

1,590

1,220

1,670

2.020 

1,370

1,090

1,050

956

856

800

786

790

757

678

627

624 568"

1,OOO

905

947

1,120

*1,040

1,09O

55,724

1,152

70,860

Apr.

975

888

888

888

898

898

782

725

698

688

657

660 

648

992

75?

706

657

655

606

57O

546

528

522

515

 495

489

557

564

654

660

20,715

69O

41,090

May

651

660

561

549

582

600

605

567

516

498

471

438

441

411

582

575

465

996

630

585

546

*504

471

441

425

408

402

595

372

358

548

15,645

505

51,050

June

552

515

298

285

275

262

252

245

255

228

224

219 

215

215

215

199

188

182

170

165

160

156

155

*145

142

157

152

150

126

124

6,122

204

12 , 140

July

122

118

117

115

110

110

107

104

102

98

95

94

102

117

102

96

94

90

88

86

85

84

80

*79

77

75

75

74

74

71

69

2,910

95.9

5,770

Aug.

69

68

68

67

68

69

66

66

66

65

65

63 

61

61

58

57

56

56

57

56

56

54

52

51

49

51

51

51

5O

51

49

1,827

58.9

5,620

Sept.

 48

49

48

48

48

48

46

45

44

44

*44

44 

44

45

42

42

43

44

45

44

44

43

42

40

15

81

~5T 160

75

69

1,584

52.8

3,140

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

Peak discharge (base, 1,000 cfs). Feb. 24 (5 a.m.) 4,610 cfs (13.65 ft); Feb. 26 (7 a.m.) 8.4OO cf 

(19.85 ft); Mar. 4 (10 p.m.) 2.550 cfs (9.75 ft); Mar. 11 (10 p.m.) 2,700 cfs (10.10 ft)j May 18 

(2:30 a.m.) 1,530 cfs (7.30 ft).

* Discharge measurement made on this day. 

t Result of discharge measurement.
586 KLAMATH RIVER BASIN

Elk Creek near Happy Camp, Calif.

Location.--Lat 41°44'40", long 123°20'50", In My sec. 36, T. 16 N., R. 7 E., on left 

frank 0.15 mile downstream from East Fork, 4 miles upstream from mouth, and 4 miles 

south of town of Happy Camp.

Drainage area. 91.1 sq ml.

Records available. November 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage Is 1,300 ft (from topographic map).

Extremes.--Maximum discharge during period not determined, occurred Feb. 26; minimum, 

31 cfs Sept. 24, 25.

Flood of Dec. 21, 1955, reached a stage of 15.3 ft, from floodmarks (discharge, 

14,400 cfs on basis of slope-area determination of peak flow).

Remarks. Records good except those for periods of doubtful or no gage-height record, 

which are fair. Small diversions above station for irrigation.

Rating tables, Kov. 1, 1956, to Sept. 3O, 1957 (gage height, In feet, 

and discharge; In cubic feet per second)

Nov. 1 to Feb. 25 Feb. 26 to Sept. 3O

2.6 

2.9 

3.2 

3.6

156

274

4.0 

4.5 

5.0 

6.0

435

700

1,080

2,100

2.7 

2.9 

3.2 

3.5

60

122

205

4.0 415

4.5 700

5.0 1,080

6.0 2,100

Discharge, in cubic feet per second, November 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

3O

31

Total

Mean

Ao-ft

Oct. Nov.

154

137

137

151

139

132

134

132

125

123

114

102

96

88

85

85

110

102

87

*8O

78

75

73

70

68

67

66

64

62

61

2,997

99.9

5,940

Dec.

60

58

58

62

64

62

57

S5

57

89

392

318

*326

231

182

159

142

130

119

110

104

98

94

90

87

83

82

80

76

75

73

3,676

119

7,290

Jan.

72

70

68

67

64

62

67

*67

66

66

70

70

75

90

120

110

95

83

90

140

130

120

110

100

92

88

85

83

83

75

2,658

85.7

5,270

Feb.

82

76

72

70

*68

67

70

75

70

70

68

68

90

170

250

280

3OO

320

300

280

310

430

620

*1,600

1,260

5.500

1,370

840

-

12,776

456

25,340

Mar.

628

514

442

547

664

756

749

646

634

514

975

1.480

885

670

598

530

481

415

40O

385

352

320

296

288

385

380

356

370

*454

415

448

16,972

547

33,660

Apr.

420

395

390

395

400

400

360

342

338

334

329

342

324

442

365

338

316

304

288

272

256

248

248

244

*240

236

270

310

370

38O

9,891

330

19,620

May

370

380

334

334

360

400

432

395

365

352

324

304

324

292

268

272

330

700

470

426

375

*347

324

308

304

312

338

352

347

329

320

11,088

358

21,990

June

308

280

260

248

236

216

199

186

173

162

153

151

145

140

136

127

120

115

113

111

107

102

100

96

*94

90

90

87

83

81

4,509

150

8,940

July

79

77

75

71

68

66

64

64

62

60

60

58

62

70

62

58

57

57

55

57

55

55

54

52

*52

52

50

50

50 

49

49

1,850

59.7

3,670

Aug.

49

47

46

46

47

47

46

46

44

44

44

43

43

41

41

41

40

40

40

40

39

39

38

38

38

36

36

38

38

39

1,292

41.7

2,560

Sept.

38

36

36

35

35

35

35

35

35

*34

34

34

34

32

3T

34

34

34

34

32

32

32

32

32

32

72

151

71

57 

52

1,253

41.8

2,490

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.

Note.--Doubtful or no gage-height record Jan. 14-17, 19-25, Feb. 13-24, 26, Apr. 27 to May 2, 

May 5, 6, 17-19; discharge estimated on basis of 1 discharge measurement and records for Indian 

Creelc near Happy Camp.
KLAMATH RIVER BASIN 587

Salmon River at Somesbar, Calif.

Location. Lat 41°22'50", long 123°28'10", in NW£ sec. 2, T. 11 N., R. 6 E., on right 

bank 0.5 mile east of Somesbar Post Office and 1.5 miles upstream from mouth.

Drainage area.--746 sq mi.

Records available.--September 1911 to September 1915, October 1927 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 500 ft (from topographic map). Prior 

to October 1927, staff gage at different datum.

Average discharge. 31 years (1911-13, 1927-29, 1930-57), 1,681 cfs (1,217,000 acre-ft 

per year).

Extremes.--Maximum discharge during year, 22,700 cfs Feb. 26 (gage height, 12.99 ft), 

from rating curve extended above 15,000 cfs' by logarithmic plotting; minimum, 108 cfs 

Sept. 25.

1927-57: Maximum discharge, 84,000 cfs Dec. 22, 1955 (gage height, '28.80 ft), from 

rating curve extended above 15,000 cfs by logarithmic plotting; minimum, 70 cfs 

Aug. 25, Sept. 4, 5, 1931.

Remarks. Records good. No storage or large diversion above station.

Revisions (water years). WSP 1285: 1912, 1914, 1915(M), 1946(M), 1948(M), drainage area.

Rating tables, water year 1956-57 (gage height, In feet, and discharge, 

in cubic feet per second)'

Oct. 1 to Feb. 26 Feb. 27 to Sept. 30

3.4 130

3.7 320

4.0 540

5.0 1,540

6.0 3,050

7.0 5,390

12.0 19,500

3.4 

3.6

4.0 

4.5

195

475

910

5.0

6.0

8.0

10.0

1,510

3,320

7,950

13,600

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

5

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

51

Total

Mean

Ac-ft

Oct.

172

172

172

172

172

172

172

*160

166

203

294

248

222

210

210

205

205

210

216

210

203

203

288

262

455

1,710

1,060

612

585

4.580 

1,850

15,727

507

51,190

Nov.

1,200

1,060

1,080

1,240

1,190

1,130

1,130

1,150

1,050

990

940

820

728

665

*612

604

910

980

757

658

588

548

518

488

458

442

428

412

398

385

25,497

785

46,610

Dec.

569

562

548

585

420

405

569

555

348

610

5,560

4,570

4,770

2,860

2,050

1,690

1,420

1,270

*1,140

1,050

980

900

850

800

755

710

674

647

620

604

580

58,269

1,234

75,910

Jan.

564

548

525

502

495

458 4~9~5

525

488

465

502

556

683

757

850

800

719

*665

809

2.150

1,590

1,220

1,050

950

860

764

665

683

620

620

25,158

747

45,950

Feb.

665

629

580

556

564

556

564

*620

588

572

564

564

701

1,120

1,230

1,320

1,400

1,440

1,560

1,500

1,440

1,920

2,510

9,810

*10,500

16.900

11,700

7,050

-

78,505

2,804

155,700

Mar.

5,260

4,290

5,700

5,040

9,660

9,520

8,570

6,590

*6,070

4,950

6,100

10,600

6,980

5,450

4,840

4,440

4,000

3,590

5,380

5,360

*5,170

2,920

2,700

2.590

5,890

4,270

3,940

5,960

4,560

4,110 

4,220

156,100

5,035

509,600

Apr.

4,180

3,940

5,940

4,000

4,090

4,140

5,640

3,320

3,190

3,150

5,050

*5,070

2,900

5,870

3,240

2,960

2,760

2,600

2,470

2,550

2,190

2,120

2,120

2,100

2.050

2,050

2,150

- 2,510

5,220

3,570

90,880

5,029

180,500

May

5,570

3,400

2,780

2,660

3,090

5,660

*3,830

5,590

3,110

2,820

2,600

2,470

2,600

2,400

2,150

2,170

2,490

6,640

4,770

3,810

3,400

5,110

2,760

2,640

2,700

2,860

3,190

5,580

3,450

*5,450 

5,520

98,870

5,189

196,100

June

5,190

2,920

2,660

2,570

2,510

2,220

1,960

1,880

1,690

1,600

1,500

1,510

1,440

1,280

1,200

1,100

1,040

1,050

1,080

1,050

990

970

950

950

900

890

880

880

830

785

44,415

1,480

88,090

July

747

702

666

650

606

574

558

555

520

505

498

490

490

558

512

468

458

422

408

450

400

595

579

565

358

351

557

316

309

295 

*288

14,548

469

28,860

Aug.

281

274

267

260

260

267

260

254

247

240

254

254

221

214

208

208

195

195

189

185

185

185

177

177

171

165

165

165

171

171 

165

6,584

212

13,060

Sept.

165

159

155

155

150

147

147

«, 147

141

150

124

130

130

150

124

124

150

155

150

124

118

118

118

113

108

185

910

606

450

422

5,899

197

11,700

Calendar year 1956: Max 54,600 Min 160 Mean 2,422 Ac-ft 1,758,000

Water year 1956-57: Max 16,900 Min 108 Mean 1,634 Ac-ft 1,183,000

Peak discharge (base, 7,000 cfs). --Oct. 50 (9 a.m.) 7,140 cfs (7.69 ft); Dec. 11 (5 p.m.) 9.350 ofs

(8.50 ft); Feb. 26 (1 p.m.) 22,700 cfs (12.99 ft); Mar. 5 (2:50 a.m.) 11,100 ofs (9.12 ft);

Mar. 12 (4 a.m.) 12,400 ofs (9.57 ft); May 18 (10 a.m.) 8,370 ofs (8.15 ft).

* Discharge measurement made on this day.'
588 KLAMATH RIVER BASIN

Klamath River at Somesbar, Calif.

Location. La t 41°22 I 40", long 123°29'30", in NE£ sec. 4, T. 11 N., R. 6 E., on left 

bank 300 ft downstream from Salmon River and 1 mile west of Somesbar Post Office.

Drainage area. 8,480 sq mi, approximately.

Records available.--October 1927 to September 1957.

Gage.--Water-stage recorder. Altitude of gage is 450 ft (from topographic map).

Average discharge.--29 years (1927-29, 1930-57), 7,572 cfs (5,482,000 acre-ft per year).

Extremes.--Maximum discharge during year, 79,000 cfs Feb. 26 (gage height, 33.00 ft); 

minimum daily, 1,500 cfs Sept. 3.

1927-57; Maximum discharge, 202,000 cfs Dec. 22, 1955 (gage height, 59.4 ft, from 

floodmarks), from rating curve extended above 50,000 cfs by slope-conveyance study; 

minimum daily, 320 cfs Aug. 25, Sept. 1, 1931.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Flow considerably regulated by reservoirs and powerplants above station. Large diversions above station for irrigation.

Revisions. WSP 811: Drainage area.

Rating table, water year 1956-57 (gage height. In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Dec. 29 to Feb. 23)

4.1 

5.0 

6.0 

8.0

1,430

2,320

3,730

7,520

14.0

20.0

30.0

23,000

39,400

69,600

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3 

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

2.22O 

3.040

,340 

,170

,170

,200

,180

,170

* ,200

,570

,780

,570

,460

,460

,460

,400

,400

,490

,470

,420

,200

,470

,890

,660 

,510

1 ,800

,040

,100

,250

25.000

15,200

175,070

5,647

547,200

Nov.

9.680 

8,680

8,580 

9,070

8,790

8,290

8,090

7,890

7,520

7,280

7,040

6,490

6,260

*6,160

5,980

5,980

7,000

7,500

6,640

6,280

6,060

5,840

5,700

5,540 

5,580

5,490

5,450

5,570

5.220

5, 220

204,270

6,809

405,200

Dec.

5,180 

5,070

4.610 

4,980

5,150

5,050

4,870

4,800

4,840

5,710

20,800

22.600

20,900

16,500

13,500

11,500

10, 200

9,090

*8,470

8,000

7,670

7,500

7,040

6,870 

6,680

6,490

6,500

6,140

6,040

5,840

5,680

265,850

8,511

523,300

Jan.

5,800 

5,700

5,580 

5,470

5,390

5,280

5,130

5,510

4,930

4,620

5,050

5,500

5,470

6,570

7,410

6,570

*6,100

5,600

5,530

11.000

9,180

7,810

6,560

6,200 

6,040

5,680

5,090

4,420

»4.060

5,160

5,410

183,200

5,910

365,400

Feb.

5,740 

5,410

5,200 

4,710

4,850

4,820

4,940

5,090

5,050

4.280

4,680

4,540

4,940

6,660

7,060

8,560

8,380

7,670

8,740

8,290

8,930

11,900

14,000

36,700 

47 , 600

*66.600

52^500

55,900

-

591,540

15,980

776,600

Mar.

25 , 000 

20, 000

17 , 500 

18,500

31,900

32,800

55,600

29,500

28 , 900

26,200

30, 600

49.700

58,800

30,500

28,300

27,100

24,400

22,600

21,600

20,800

*19,800

18,400

17 , 400

16 . 900 

19,800

22,200

20,200

19,500

21,200

*2 1,000

21,500

775,800

25,030

tl,559

Apr.

21.400 

20,500

19,500 

19,500

19,400

19,700

18,100

17,100

16,200

14,900

13,600

15,500

15,200

16,100

14,400

15,700

13,000

12,700

12,400

12,000

11,000

9.090

10,400

10,500 

10,000

9,780

9,850

10,900

*11,200

12,900

426,520

14,210

845,600

May

12,900 

15,000

11,900 

11,000

10,000

11,000

 12,000

15,500

12,000

11,100

10,600

9,970

10,100

10,700

10,100

9.900

10,500

19,700

16,600

12,600

15,100

14,900

15,900

13,200 

12,200

11,600

11,600

11,400

11,800

*11,400

10,500

576,570

12,140

746,500

June

10.500 

9,780

8,610 

9,040

8,610

7,980

7,500

6,700

5,600

5,030

5,490

5,600

5,620

5,560

5,600

4,840

4,120

4,540

5,160

4,620

4,540

4,560

4,570

5.220

S.SSo

4,040

4,420

4,400

4,510

3 990

171,900

5,750

541,000

July

2,940 

4,200

4.570 

4,180

5,140

3,110

5,130

2,530

2,800

5,000

5,510

5,400

5,420

2,900

2,320

5,000

3,300

5,000

5,400

5,100

2,700

2,500

5,400

5,200 

5,600

5,500

3,200

2,700

2,500

2, 400

*2j500

96,550

5,115

191,500

Aug.

2.800 

2,790

2,600 

2,500

2,700

2,500

2,500

2,500

2,200

2,200

2,200

2,200

2,100

2,200

2,200

2,200

2,100

1,900

1,800

2,100

2,200

2,300

2,600

2,500 

1,900

1.700

2,100

2,200

2,250

2,500

2,300

69,840

2,255

138,500

Sept.

2,100 

1,700

1.500 

2.200

2,700

2,500

2,700

2,500

2,400

2,800

2,500

2,700

2,500

2,500

2,250

2,500

2,800

2,600

2,480

2,620

2,580

2,500

2,800

2,900 

2,700

2,900

5,500

4.500

4,000

3,700

80,250

2,674

159,100

Calendar year 1956: Max 98,200 Mln 1,760 Mean 13,780 Ac-ft 10,000,000

Water year 1956-57: 956-57: Max 66,600 Mln 1,500 Mean 8,808 Ac-ft 6,377,000 6,377,000

ge (base, 18,000 cfs). Oct. 30 (8 a.m.) 29,200 cfs (16.50 ft); Dec. 11 (5:50 p.m.) 

(17.75 ft); Feb. 26 (l p.m.) 79,200 cfs (55.00 ft); Mar. 6 (9:30 p.nu) 35,200 ofs 

; Mar. 12 (4 a.m.) 52,000 cfs (24.52 ft); Hay 18 (9 a.m.) 23,500 cfs (14.10 ft).

Peak discharge 

53,100 cfs 

(18.55 ft)

* Discharge measurement made on this day. 

t Expressed In thousands. 

Note. No gage-height record May 4-7, July 2, 9, 10, 16-50, Aug. 5 to Sept. 18, Sept. 22-30; discharge estimated on basis of records for station near Klamath and Salmon River at Somesbar.
KLAMATH RIVER BASIN 589

Trinity River at Lewiston, Calif.

Location. Lat 40°42', long 122°48' in NE^ sec. 19, T. 33 M. , R. 8 W. , on downstream side 

of left pier of highway bridge at Lewiston, 0.8 mile downstream from Deadwood Creek.

Drainage area. 727 sq mi.

Records available.--August 1911 to September 1957.

Gage. Water-stage recorder. Datum of gage is 1,794.10 ft above mean sea level, datum of 

1929. Prior to Oct. 16, 1930, staff gage at upstream side of bridge at same datum.

Average discharge. 46 years, 1,605 cfs (1,162,000 acre-ft per year).

Extremes. Maximum discharge during year, 23,500 cfs Feb. 24 (gage height, 16.99 ft); minimum, 124 cfs Sept. 25.

1911-57: Maximum discharge, 71,600 cfs Dec. 22, 1955 (gage height, 27.3 ft, from 

floodmarks); minimum, 23 cfs July 30, 1924.

Remarks. Records excellent. Flow slightly regulated by diversions above station for 

irrigation, power, and placer mining. Records of chemical analyses for the water year 

1957 are given in WSP 1523.

Revisions (water years). WSP 331: 1911-12. WSP 1181: 1949. WSP 1345: Drainage area.

Rating table, water year 1956-57 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Aug. 5 to Sept. 30)

4.1 

4.4 

4.7 

5.0

128

164

209

265

5.5 383

6.0 535

6.5 740

7.0 1,030

8.0 1,930

9.0 3,080"

11.0 6,240

13.0 11,100

16.0 20,100

Discharge, tn cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

13

13

14

15

16

17

18

19

20

31

22

33

24

25

26

27 

28

29

30

31

Total

Mean

Ac-ft

Oct.

*175

175

175

172

172

171

170

170

174

198

255

273

249

236

224

216

209

206

206

207

206

203

207

218

223

474

507 

380

341

785 646"

8,223

Z65

16,310

Nov.

510

*461

446

507

528

538

570

610

556

542

528

488

440

407

380

359

356

402

386

348

331

324

308

301

293

286

284 

276

269

*265_

12,299

410

24,390

Dec.

363

259

255

255

259

265

257

239

247

259

1,020

1.420

1,220

918

650

546

488

449

416

388

370

346

338

338

322

304

393 

288

286

284

282

13,534

436

26,820

Jan.

280

*273

269

263

251

243

341

259

261

243

257

326

706

858

960

740

582

494

461

449

464

405

383

386

351

329

286 

324

304

301

317

12,266

396

24,330

Feb.

*322

320

308

395

397

301

308

338

356

351

348

351

375

676

846

913

1,010

1,090

1,030

1,020

1,530

1,730

7,400

18,700

14 , 200

*17,900

11,500 

6,340

-

90,154

3,220

178,800

Mar.

*4,460

3,830

3,260

3,160

4,510

4,310

4,340

3,900

6.120

4,540

3,950

5,330

4,300

3,480

3,180

2,950

2,770

2,550

2,470

2,460

2,360

3,140

1,950

1.820

1,940

2,240

2,200 

*2,290

2,700

2,590

2,350

100,250

3,234

198,800

Apr.

2,160

2.010

2,230

2,630

2,940

3,400

2,830

2,580

2,580

2,640

2,760

2,750

2,550

3,820

3,050

2,630

2,580

2,830

2,720

2,550

2,380

2,270

2,280

2,290

2,240

2,240

2,350 

2,780

3,550

4.240

80,860

2,695

160,400

May

*4,570

5,300

3,860

3,430

3,740

4,340

4,760

4,830

4,840

4,170

3,680

3,470

3,710

3,740

3,310

5,260

3,710

13,200

8,760

5,530

4,490

3,960

3,540

3,440

3,620

3,890

4,250 

4,510

5,000

4,650

4,600

142,160

4,586

382,000

June

*4.460

4,140

3,830

3,670

3,460

3,050

2,710

2,590

2,340

2,140

2,030

2,010

,840

,620

,470

,350

,300

,340

,350

,320

,260

, 180

1, 140

1,130

1,080

1,070

1,040 

1,040

981

918

58,859

1,962

116,700

July

*858

810

760

710

674

630

594

518

510

491

479

464

458

491

482

449

425

399

383

364

356

351

338

329

315

304

290 

290

273

271

255

14,319

462

28,400

Aug.

*247

345

245

256

228

228

234

252

226

225

216

214

211

207

205

186

182

181

178

177

174

171

170

175

171

164

m

167

165

168

*171

6,159

199

12,220

Sept.

172

168

165

165

156

150

149

147

146

145

140

158

157

157

157

158

144

150

*151

146

145

155

150

128 T2"8

146

1,090 

852

670

633

7,023

254

15,950

Calendar year 1956 : Max 21,000 Mln 170 Mean 2,378 Ac-ft 1,726,000

Water Water year year 1956-57 1956-57 : : Max Max 18,700 18,700 Mln Mln 128 128 Mean Mean 1,496 1,496 Ac-ft Ac-ft 1,085;000 1,085;000

Peak discharge (base, 5,400 cfs).--Feb. 24 (l p.m.) 35,500 cfs (16.99 ft); Feb. 26 (1 p.m.) 

22,500 cfs (16.71 ft); Mar. 9 (9 a.m.) 7,580 cfs (11.59 ft); Mar. 12 (7 a.m.) 5,780 cfs (10. 

May 2 (6:50 a.m.) 6,510 cfs (11.03 ft); May 18 (12:30 p.m.) 17,400 cfs (15.15 ft); May 29 

(12 m.) 5,480 efs (10.61 ft).

77 ft);

___________(10.61 ft)________

* Discharge measurement made on this day.
590 KLAMATH RIVER BASIN

Trinity River near Burnt Ranch, Calif.

Location. Lat 40°47'20", long 123°26'20" in Si sec. 19, T. 5 N. , R. 7 E., on left bank 

500 ft upstream from Cedar Flat Creek, 700 ft upstream from highway bridge at Cedar 

Flat, and 2.3 miles southeast of town of Burnt Ranch.

Drainage area. 1,438 sq mi.

Records available . October 1931 to January 1940, October 1956 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 950 ft (from topographic map). Oct. 1, 

 1931, to Jan. 19, 1940, water-stage recorder (destroyed by flood of Feb. 28, 1940) at 

site 2 miles upstream at different datum.

Average discharge. 9 years (1931-39, 1956-57), 2,345 cfs (1,698,000 acre-ft per year).

Extremes. Maximum discharge during year, 36,200 cfs Feb. 24 (gage height, 20.55 ft); minimum, 225 cfs Sept. 25.

1931-40, 1956-57: Maximum discharge, 71,800 cfs Dec. 11, 1937 (gage height, 

31.4 ft, from floodmarks, site and datum then in use), from rating curve extended 

above 24,000 cfs on basis of logarithmic plotting and velocity-area studies; minimum, 

82 efr Aug. 31, 1939.

Flood of Dec. 22, 1955, reached a stage of 43.2 ft, from floodmarks (discharge, 

172,000 cfs on basis of slope-area determination of peak flow).

Remarks. Records good. Small diversions above station for mining and irrigation.

Rating tables, water year 1956-57 (gage height. In feet, and 

discharge, In cubic feet per second)

Oct. 1 to Feb. 25 Feb. 26 to Sept. 3O

4.0 

4.3 

5.0 

6.0

260

390

900

1,860

8.0

10.0

18.0

4,620

8,700

27,500

3.5 

3.9 

4.4

220

335

600

5.0

6.0

990

1,860

Note. Same as preceding table above 6.0 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

L.3

24

25

26 

27

28 

29

30 

31

Total

Mean

Ac-ft

Oct.

267

267

270

270

267

267

267

264

267

292

357

390

408

384

362

340

335

331

327 

323

327

319

357

362

368

868 

1,090

884 

724

*2.050 

1,850

15,454

499

30,650

Nov.

1.300

1,120

1,040

1,160

1,220

1,200

1,190

1,230

1,190

1,080

1,040

972

*892

812

748

692

676

724

732 

676

625

590

576

555

527

513 

499

492 

478

464

25,013

834

49,610

Dec.

*450

450

444

450

471

464

450

438

420

?50

*1,380

2", 2.550 '320

*2,000

1,490

1,190

1,030

*924

844 

788

732

684

646

625

611

583 

555

527 

513

513 

506

25,498

823

50,570

Jan.

499

485

478

464

450

432

426

457

450

438

457

*555

948

1,530

1.720

1,540

1,250

1,050

988 

1,130

1,050

964

876

836

804

756 

639

597 

639

611 

625

24,144

779

47,890

Feb.

676

676

639

611

604

*611

632

700

756

780

756

748

812

1,280

1,680

1,840

1,950

2,020

1,980 

1,900

2,250

2,920

6,910

25,300

* 25. 800

25,100 

22,100

12,600

144,631

5,165

286,900

Mar.

9,760

*6,900

5,760

5,720

10,600

10, 600

10,000

8,440

9,580

9,140

7,630

11.000

9,800

7,800

6,900

*6,620

6,160

5,520

5,130 

*5,040

4,820

4,480

3,960

5. 680

3,700

4,140 

4,180

4,180 

4,620

4,980 

4,520

205,360

6,625

407,300

Apr.

4,360

3,990

4,060

4,520

4,850

5,480

5,000

4,330

4,070

4,140

4,200

*4,200

4,090

5,520

5,400

4,380

4,180

4,710

4,600 

4,350

4,060

3,800

3,690

3,660

3,580

5,500 

3,560

3,950 

4,890

5,960

151,060

4,369

260,000

May

6,520

7,740

6,260

5,190

5,260

6,140

6,920

7,040

*7 , 250

6,540

5,780

5,260

5,210

5,740

5,060

4.730

5,040

15,000

15,500 

10,100

8,260

7,020

6,160

5,680

5,640

5,900 

*6,410

6,940 

7,320

7,420 

7,020

215,850

6,963

428,100

June

6.920

6,410

5,800

5,520

5,260

4,730

4,070

3,880

3,590

3,220

3,070'

3,030

2,940

2,560

2,330

2,140

2,050

2,060

2,170 

2,050

2,010

1,960

1,880

1,860

1,830

1,820 

1,830

1,850 

1,790

1.670

92,300

3,077

183,100

July

1.540

1,450

1,350

1,290

1,240

1,160

1,100

1,050

941

941

906

892

857

927

927

864

794

738

708 

684

660

648

618

594

588

564 

540

522 

504

*480 

460

26,537

856

52,640

Aug.

445

430

420

410

400

395

400

390

380

371

358

353

348

340

332

328

314

304

300 

297

294

291

288

285

285

279 

276

270 

273 

273

276

10,405

336

20,640

Sept.

276

279

270

262

260

255

255

252

250

245

*240

240

238

235

230

232

235

238

240 

245

245

242

235

230

228

245 

521

2.150 

1,330

1,190

11,593

386

22,990

Calendar year 1956: Max - Mln - Mean - Ac-ft -

Water year 1956-57: Max 25,800 Mln 228 Mean 2,542 Ac-ft 1,840,000

Peak discharge (base, 12,000 cfs). Feb. 24 (8:30 p.m.) 36,200 cfs (20.55 ft); Feb. 26 (8 p.m.)

32,800 cfB (19.65 ft); Mar. 12 (3 p.m.) 12,000 cfs (11.52 ft); May 18 (7 p.m.) 22,000 cfs (15.88 ft).

Discharge measurement made on this day.
KLAMATH RIVER BASIN 591

South Fork Trinity River near Hyampom, Calif.

Location. Lat 40°36'00", long 123°26'50", in NW£ sec. 36, T. 3 N., R. 6 E., on left bank

1,200 rt upstream from Deep Gulch, 1.0 mile ucstream from Hayfork Creek, and 1.2 miles

south of Hyampom. 

Drainage area. 342 sq mi.

Records available. September 1956 to September 1957.

gage. Water-stage recorder. Altitude of gage is 1,300 ft (from topographic map). 

Extremes. Maximum discharge during year, 11,600 cfs Feb. 24 (gage height, 15.20 ft), from

rating curve extended above 6,600 cfs on basis of slope-area measurement at 22.2 ft;

minimum, 34 cfs Oct. 8.

Flood of Dec. 22, 1955, reached a stage of 22.2 ft, from floodmarks (discharge,

39,400 cfs on basis of slope-area'determination of peak flow). 

Remarks. Records good. No regulation or diversion.

Discharge, in cubic feet per second, 1956

Day

Sept. 1.

2.

3.

4.

5.

6.

7 f a.

Total.. .

Mean....

Runoff iri a or

Discharge

a41

a41

a41

a40

a40

a41

a41

41

e-feet.....

Day

Sept. 9.

10.

11.

12.

13.

14.

15.

16.

Discharge

42

43

44

44

44

44

43

42

Day

Sept. 17...

18...

19...

20...

21...

22...

23...

24...

Discharge

*41

41

41

42

44

44

41

40

Day

Sept. 25.

26.

27.

28.

29.

30,

Discharge

39

58.

38

38

38

38

2,450

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of records for Hayfork Creek near Hyampom. 

Rating tables, Sept. 8. 1956, to Sept. 30, 1957 (gage height, in feet, and discharge, 

in cubic feet per second)

Sept. 8 to Feb. 24 Feb. 24 to July 30 July 31 to Sept. 30

6.7

7.0

7.5

8.0

8.5

9.0

10.0

11.0

12.0

13.0

15.0

32

64

142

260

415

620

1,200

2,140

3,600

5,500

11,000

5.2 

5.5

6.0

6.5

7.0

8.0

9.0

10.0

11.0

12.0

14.0

74

110

202

316

465

830

1,360

2,200

3,300

4,800

8,500

5.1 

5.5

35

77

162

290

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Ac-ft

Oct.

38 

37

37

36

36

36

35

3?

35

43

60

62

52

49

46

45

44

*48

46

45

44

44

82

87

74

104

162

111 

100

1.190

 CTP D I C.

3,535

114

7,010

Nov.

311

J53

208

182

162

138

124

111

103

95

89

*86

84

82

79

77

77

77

76

74

72

71

71

70

69

68

66

66 

65

64

3,156

105

6,260

Dec.

64 

64

63

68

80

79

75

65

61

75

126

208

T5T

160

131

115

104

98

92

87

84

84

77

79

77

70

69

71 

72

74

74

2,837

91.5

5,630

Jan.

72 

71

*70

68

68

SB" 62

82

74

65

76

119

440

474

530

418

308

239

239

1,580

822

494

374

314

275

234

177

177 

177

166

160

8,291

267

16,440

Feb.

171 

177

150

138

140

135

144

196

189

171

164

162

*194

356

436

462

482

482

429

404

593

*792

2,180

8,540

*7,010

6,220

4,220

2,610

37,347

1,334

74,080

Mar.

1,860 

1,460

1,300

1,400

2,940

5,240

2,670

2,100

1,860

1,570

1,590

3,080

2,480

2,060

2,200

2,160

1,940

1,720

1,600

1,540

1,460

1,550

1,250

1,170

1,160

*1, 190

1,180

1,140 

1,170

1,210

1,200

54,250

1,749

107,600

Apr.

1,190 

1,120

1,070

1,020

980

945

905

866

850

798

774

758

758

1,110

1,000

920

950

1,020

1,040

*1,010

955

890

846

814

778

746

710

686 

664

640

26,793

893

53,140

May

640 

806

718

664

640

622

ST5" 608

650

672

710

678

675

700

661

619

619

1,960

2,060

1,980

1,940

1,610

*1,370

1,210

1,080

985

910

854 

810

762

703

29,528

953

58,570

June

661 

£22

584

549

514

465

437

418

397

380

361

350

338

336

327

311

295

285

276

*266

259

253

242

231

222

216

208

204

198

190

10,395

346

20,620

July

186 

1ST

172

168

158

151

147

143

139

134

130

127

125

132

130

*124

*122

al!8

al!6

all4

al!2

alll

allO

a!07

a!03

alOO

a98

a96 

a93

3.92

90

3,930

127

7,800

Aug.

SB" 87

83

80

78

78

77

76

73

71

70

67

66

65

63

61

61

60

57

56

55

55

54

53

52

50

49

49 

*48 

To48

48

1,975

63.7

3,920

Sept.

47 

46

45

44

43

42

42

41

40

40

39

39

39

38

38

38

*38

39

39

38

38

37

36

36

35

55

ITS

*

81

1,806

53 .5

3,190

Calendar year 1956: Max - Mln - Mean - Ac-ft -

Water year 1956-57: Max 8,540 Min 35 Mean 503 Ac-ft 364,300

Peak discharge (base, 4,900 cfs).--Feb. 24 (5 p.m.) 11,600 cfs (15.20 ft).

* Discharge measurement made on this day.

a Doubtful or no gage-height record} discharge estimated on basis of records for station near 

Salyer and Hayfork Creek near Hyampom.
592 KLAMATH RIVER BASIN

Hayfork Creek near Hayfork, Calif.

Location. Lat 40°31'10", long 123°05'05", in SWi sec. 23, T. 31 N. , R. 11 W. , on left 

bank 1,300 ft downstream from Carrier Gulch and 5.8 miles southeast of town of Hayfork.

Drainage area. 87.2 sq mi.

Records available. November 1956 to September 1957.

Gage. Water-stage recorder. Datum of gage is2,555.27 ft above mean sea level, datum of 

1929.

Extremes.--Maximum discharge during period, 2,300 cfs Feb. 24 (gage height, 8.44 ft); minimum, 1.2 cfs Sept. 1.

Flood of Dec. 22, 1955, reached a stage of 11.0 ft, from floodmarks (discharge, 

3,880 cfs on basis of slope-area determination of peak flow).

Remarks. Records good except those for period of no gage-height record, which are fair.

Rating tables, Nov. 3, 1956, to Sept. 30, 1957 (gage height, In feet, 

and discharge. In cubic feet per second)

Nov. 3 to Feb. 24 Feb. 25 to Sept. 30

3.2

3.3

3.4 

3.6 

4.0 

4.4 

4.7 

5.0 

6.0 

8.0

6.0

9.0

14

31

80

144

220

350

890

2,040

2.75

2.8

2.9

3.0

3.1 

3.3 

3.6 

4.0 

4.5 

5.0 

6.0 

7.0

1.7

2.8

5.8

10

17

38

76

142

250

430

890

1,440

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

ZZ

Z3

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

> 3.1

- !*) (»)

> a9

\~

/ a!4

a80

a70

398

12.8

789

Nov.

a60 a40~

33

32

29

26

23

20

19

18

16

*14

13

13

13

14

13

13

13

13

13

13

13

13

12

12

12

12

12

12

559

18.6

1,110

Dec.

12 

12

12

12

14

13

12

8.7

14

15

23

^B- 29

21

19

18

17

16

14

14

14

13

13

12 

11

12

13

14

15

13

12

462.7

14.9

918

Calendar year 1956; Max -

Jan.

11 

*12

12

13 9.6

12

13

12

9.6

17

14

18

74

58

57

48

38

33

32

102

71

49

41

33

29

23

31

33

30 -

26

23

982.2

31.7

1,950

Feb.

20 

20

17

TO

20

18

18

18

18

18

18

18

26

*57

68

75

84

88

79

83

*144

*185

815

1,920 

*1,180

*985

604

346

-

6,960

249

13,800

Mar.

232

178

158

210

568

510

366

274

238

190

186

442

332

268

290

301

253

210

200

210

200

180

160

149 

*T56~

178

176

178

198

194

182

7,567

244

15,010

Apr.

168 

153

142

135

124

118

103

92

84

78

73

70

7S

200

155

142

162

230

*262 '520"

192

170

155

138 

122

113

98

90

86

79

4,032

134

8,000

May

97 

146

114

98

90

84

105- 81

164

228

274

225

194

170

147

131

128

382 3~66"

312

301

242

*200

170 

147

129

116

105

97

89

81

5,213

168

10,340

June

73 

W

65

60

56

54

52

49

46

45

43

42

40

39

39

38

36

32

*31

30

30

28

27

24 

23

22

21

21

20

19

1,173

39.1

2,330

July

18

TO

17

16

16

16

16

16

14

14

13

12

11

14

*13

13

11

11

11

10

10

9.7

8.7

7.8 

7.8

8.2

8.2

8.2

7.8

7.8

7^.4

371.6

12.0

737

Aug.

H6.5

6.1

6.9

6.9

6.5

5.5

5.5

5.8

5.2

5.8

5.8

5.5

4.9

4.3

4.3

4.3

4.3

4.3

4.0

3.1

2.8

37T

3.4

2.8

3.4

3.4

*4.0

4.6

3.7

150.5

4.85

299

Sept.

H3.4

3.4

3.1

3.1

3.4

2.8

2.8

2.8

2.6

2.3

2.6

2.6

2.8

2.8

*3.7

4.0

4.3

3.4

3.4

3.4

3.4

3.4 

3.4

4.6

32

27

22

22

185.9

6.20

369

Min - Mean - Ac-ft -

Water year 1956-57: Max 1,920 Min 2.3 Mean 76.9 Ac-ft 55,650

Peak discharge (base, 1,100 cfs). Feb. 24 (2:30 p.m.) 2,300 cfs (8.44 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station near
KLAMATH RIVER BASIN 593

Hayfork Creek near Hyampom, Calif.

Location Lat 40°37 I 35", long 123°26'00", in NW£ sec. 19, T. 3 N., R. 7 E., on right 

bank 1.2 miles upstream from mouth and 1.3 miles northeast of Hyampom.

Drainage area. 379 sq mi.

Records available. August 1953 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 1,280 ft (from topographip map).

Extremes.--Maximum discharge during year, 6,110 cfs Feb. 24 (gage height, 10.23 ft); minimum, 21 cfs Sept. 25.

1953-57; Maximum discharge, 25,300 cfs Dec. 22, 1955 (gage height, 18.00 ft), from 

rating curve extended above 6,100 cfs on basis of slope-area determination of peak 

flow; minimum, 17 cfs Sept. 8, 9, 1955.

Remarks. Records good. Diversions for irrigation of about 700 acres above station. 

Revisions (water years).--WSP 1395: 1954(M).

Rating tables, water year 1956-57 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Feb. 24 Feb. 25 to Sept. 30

3.0

3.3

3.6

4.0

5.0

31

75

147

268

656

6.0

7.0

9.0

10.0

1,200

2,000

4,200

5,700

2.9 21 3.5 129

3.1 47 4.0 268

3.3 83

Note. Same as preceding table above

4.0 ft.

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

^3

24

25

26

27

28

29

30

31

Total

Mean

Ac-It

Oct.

43

41

43

41

41

3940"

41

43

47

55

57

58

54

54

52

52

 55

55

55

54

54

68

70

66

79

92

86

83

474

375

2,466

79.5

4,890

Nov.

211

ITS

147

134

123

113

106

98

94

88

86

83

 79

77

77

77

77

77

75

73

73

75

75

73

73

73

72

72

72

70

2,793

93.1

5,540

Dec.

70

68

68

72

79

79

75

70

68

73

103

150

T3T

us

106

96

92

90

88

86

83

79

77

77

73

68

66

70

73

73

72

2,596

83.7

5,150

Jan.

70

70

*6B

66

65

61

TT

86

72

63

75

94

265

299

333

249

199

170

164

555

422

288

230

199

179

156

113

139

134

134

125

5,218 '168

10,350

Feb.

131

134

us

110

106

108

113

136

131

125

123

123

 134

199

265

288

299

302

282

268

383

510

1,600

4.820

*3,6BO

3,090

2,320

1,390

21,288

760

42,220

Mar.

945

733

639

797

1.860

1,780

1,450

1,120

978

810

785

1,840

1,590

1,280

1,490

1,580

1,420

1,140

1,020

994

956

870

781

714

696

 733

733

709

752

795

761

32,751

1,056

64,960

Apr.

738

687

6S9

597

555

522

490

454

422

399

376

354

340

652

572

510

597

795

795

*72B

648

589

534

486

438

410

383

354

336

319

15,719

524

31,180

May

319

466

391

347

322

305

299

ST2

410

474

576

534

494

450

406

368

350

874

978

855

830

719

 635

559

486

442

406

361

347

326

305

14,946

482

29,640

June

282 265"

252

242

230

222

216

202

194

191

183

175

167

170

170

162

154

146

142

*136

134

127

124

117

101

103

101

101

98

94

5,001

167

9,920

July

96

92

90

85

83

75

73

69

69

69

69

65

69

73

75

 69

65

61

60

57

55

55

53

50

49

49

47

47

47

46

46

2,008

64.8

3,980

Aug.

46

46

44

43

43

43

41

40

40

39

40

40

40

41

40

39

37

36

34

34

33

32

32

32

31

31

32

32

*31

31

£3.

1,152

37.2

2,280

Sept.

31

29

29

28

28

29

29

29

28

26

25

27

27

27

27

27

*27

26

26

26

26

26

27

25

2_2

29

67

98

90

79

1,040

34.7

2,060

Calendar year 1956: Max 12,700 Mln 39 Mean 709 Ac-ft 514,400

water ncii/ci year jcair 1956-57: J.33O-J ( Max na A 4,820 i, ocu Mln rij.ii 22 c.c. Mean riccu* 293 caj Ac-ft «u~ii* 212,200 txc ( c,\j\j

Peak discharge (base, 2,200 cfs). Feb. 24 (3 p.m.) 6,110 cfs (10.23 ft); Mar. 12 (9 a.m.) 2,310 cfs 

(7.31 ft).

» Discharge measurement made on this day.
594 KLAMATH RIVER BASIN

South Fork Trinity River near Salyer, Calif.

Location. Lat 40°50'30", long 123°34'00", in SEij sec. 1, T. 5 N., R. 5 E., on right bank 

4 miles south of Salyer and 8 miles upstream from mouth.

Drainage area. 899 sq mi.

Records available. October 1950 to September 1957.

gage. Water-stage recorder. Altitude of gage is 550 ft (from topographic map).

Average discharge. 7 years, 1,959 cfs (1,418,000 acre-ft per year).

Extremes. Maximum discharge during year, 23,800 cfs Feb. 24 (gage height, 22.10 ft); minimum, 81 cfs Sept. 26.

1950-57: Maximum discharge, 74,700 cfs Dec. 22, 1955 (gage height, 39.4 ft, from 

floodmarks), from rating curve extended above 37,000 cfs by logarithmic plotting; minimum, 54 cfs Sept. 10, 1955. Records of suspended sediment loads and water temperatures 

for the water year 1957 are given in WSP 1523.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

No regulation or diversion.

Rating tables, water year 1956-57 (gage height, In feet, and

discharge. In cubic feet per second) 

(Shifting-control method used Oct. .1-26, Jan. 24 to Feb. 14)

Oct. 31 to May 18 May 19 to Sept. 30

4.7 

5.1 

5.6 

6.4 

8.0 

10.0

136

£46

530

1,320

2,700

4.4

4.8

5.1

6.0

7.0

9.0

11.0

15.0

20.0

120

168

235

565

965

1,980

3,600

9,200

19,200

5.0

5.5

6.0

6.5

7.0

8.0

10.0

12.0

80

124

206

360

590

1,250

2,700

4,760

Discharge, In cubic feet per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

1.3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

96 

96

95

95

93

93

93

*96 

100

106

109

110

110

110

109

107

106

106

106 

106

106

106

123

133

123

223

226

180

172 

£ 230 iliso

7,344

237

14,570

Nov.

759" 961 

677

633

593

537

465

417 

372

333

308

284

*263

249

238

226

226

229

182 

168

162

158

158

157

154

149

144

141

136 

132

9,641

321

19,120

Dec.

131 

130

127

m

160

171

152

142 

124

151

623

853

WI

661

541

438

378

336

*308 

291

274

263

249

242

232

180

166

170

171 

171

178

8,948

289

17,750

Jan.

171 

166

163

160

155

148

TBT

229 

182

148

171

*a330

al,050

al,150

al.300

al,050

a770

a600

a580 

a3,300

a£,500

1,480

1,130

933

789

685

a580

a550

537 

505

477

22,143

714

43,920

Feb.

469 

525

501

449

424

414 *m

521 

545

501

477

465

509

533

1,020

1,140

1,190

1,210

1,120 

1,050

1,490

1,910

3,880

17,600

* 16, 360

13,200

10,300

6,230

84,387

3,014

167,400

Mar.

4,330 

3,320

2,930

3,500

7,240

8,150

6,630

5,260 

*4,660

3,790

4,160

8,210

6,660

5,330

5,500

5,610

5,040

4,320

3,810 

3,580

3,350

3,010

2,760

2,560

2,520

2,600

2,570

2,500

2,560

2,760

2,750

131,970

4,257

261,800

Apr.

2,760 

2,560

2,410

2,280

2,160

2,040

1,930

1,820 

1,720

1,650

1,580

1,550

1,560

2,360

*2,240

2,000

2,070

2,350

2,410 

2,320

2,170

2,020

1,900

1,790

1,690

1,610

1,530

1,480

1,420

1,390

58,780

1,959

116,600

May

1,360 

1,670

1,570

1,440

1,370

1,350

1,310

1,500 

*1,400

1,440

1,620

1,570

1,510

1,530

1,440

1,360

1,340

3,430

4,090 

3,730

3,510

3,000

2,650

2,360

2,110

1,920

*1,780

1,650

1,540

1,470

1,360

59,180

1,909

117,400

June

1,250

1,160

1,080

1,020

957

905

860

820 

768

730

692

656

620

602

590

574

546

520

495

476

462

449

432

416

404

392

*392

384

368

355

19,373

646

38,430

July

346 

339

332

325

318

304

297

290 

284

278

272

266

266

272

275

266

257

254

245

242

236

230

235

220

216

208

204

193

*182

179

168

7,999

258

15,870

Aug.

146 

T32

124

122

119

119

118

116 

114

112

111

110

110

110

108

106

105

104

102 

101

99

98

98

98

97

95

94

34

94

94

94

3,344

108

6,630

Sept.

94 

93

91

90

90

90

90

89 

88

87

*86

86

86

85

85

85

86

86

85 

86

85

85

84

83

82

91

204

T5B" 251

161

3,079

103

6,110

Calendar year 1956 : Max 34,100 Mln 80 Mean 2,157 Ac-ft 1,566,000

Water year 1956-57 : Max 17,600 Mln 82 Mean 1,140 Ac-ft 825,600

Peak discharge (base, 8JOOO cfs). Feb. 24 (8 p.m.) 23,800 cfs (22.10 ft)j Mar. 6 (8 a.m.) 8,460 cfs 

(14.56 ft); Mar. 12 (12 m.) 9,340 efs (15.08 ft).______________________________________

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of 1 discharge measurement and records for 

station near Hyampom.
KLAMATH RIVER BASIN 595

Trinity River near Hoopa, Calif.

Location. Lat 41°01'50", long 123°39'05", in SE^ sec. 31, T. 8 N., R. 5 E., in Hoopa 

Indian Reservation on left bank 0.7 mile downstream from Campbell Creek and 1? miles 

southeast of Hoopa.

Drainage area. 2.846 sq mi.

Records available. October 1911 to January 1914, November 1916 to August 1918 October 

1931 to September 1957. Published as "at Hoopa" 1911-14, 1916-18.

Gage.--Water-stage recorder. Altitude of gage is 315 ft (from river-profile map). Prior 

to October 1931, staff gage at site 2.1 miles downstream at different datum.

Average discharge. 28 years (1911-13, 1931-57), 5,613 cfs (4,064,000 acre-ft per year).

Extremes.--Maximum discharge during year, 61,900 cfs Feb. 25 (gage height, 22.21 ft); minimum, 326 cfs Sept. 25.

u , ^P'i4 ' 1916 7 18 . 1931-57: Maximum discharge, 190,000 cfs Dec. 22, 1955 (gage 

height, 36.90 ft), from rating curve extended above 56,000 cfs; minimum, 162 cfs

Remarks. Records good. Small diversions above station for mining and irrigation.

Records of suspended sediment loads and water temperatures for the water year 1957 are 

given in WSP 1523.

Revisions. WSP 1395: Drainage area.

Discharge, In cubic feet pep second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

21

22

^3

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

498 

491

491

491

484

484

477

*477

477

555

690

706

706

682

652

630 

615

615

615

608

600

600

730

818

818

1,530

1,980

1,610

1,370

5,430 

5,000

31,930

1,030

63,330

Nov.

3,080 

2,690

2,420

2,440

2,400

2,270

2,160

2,130

2,040

1,900

1,770

1,680

*1,580

1,480

1,400

1,380 

1,410

1,430

1,380

1,330

1,260

1,210

1,190

1,160

1,130

1,100

1,080

1,070

1,050

1.050

49,650

1,655

98,480

Dec.

1,030 

1,010

1,000

1,030

1,110

1,130

1,070

1,030

1,000

1,130

2,970

5.120

4,850

4,090

3,180

2,620 

2,280

2,070

*1,910

1,780

1,680

1,600

1,540

1,460

1,430

1,380

1,330

1,280

1,270

1,240 

1,230

56,850

1,834

112,800

Jan.

1,220 

1,200

1,170

1,150

1,120

1,090

1,070

1,190

1,210

1,160

1,200

1,400

2,470

3,710

4,320

*4,020 

3,250

2,700

2,670

7,000

5,870

4,300

3,440

2,970

2,710

2,440

2,180

1,980

1,940

1,860 

1,810

75,820

2,446

150,400

Feb.

1,930 

2,020

1,880

1,790

1,730

1,700

*1,720

1,910

2,000

1,980

1,930

1,880

1,980

2,690

3,520

3,980 

4,210

4,350

4,220

3,950

4,580

5,890

9,280

35,600

49,900

43,000

43,200

28,000

-

.......

270,820

9,672

537,200

Mar.

19,800 

*14,300

12,200

12,700

24,400

25,500

23,300

19,500

*18,400

17,600

17,000

25,700

22,400

18,500

17,100

*16,800 

15,500

13,800

12,700

*12,200

11,600

*10,700

9,840

9,070

9,140

9,760

9,790

9,520

10,100

10,800 

10,800

470,520

15,180

933,300

Apr.

10,900 

10,100

9,600

9,690

9,720

9,930

9,520

8,550

8,060

7,870

*7,760

7,710

7,600

9,620

10,300

8,700 

8,350

8,950

9,020

8,660

8,150

7,690

7,340

7,100

6,880

*6,590

6,500

6,700

7,470

8,370

253,400

8,447

502,600

May

8,810 

10,100

9,310

7,890

7,670

8..310

9,020

9,090

9,330

9,020

8,530

7,950

7,710

8,260

7,620

7,100 

7,290

16,400

21,500

16,500

14,300

12,400

10,700

9,640

9,160

9,020

9,210

*9,480

9,550

9,740 

9,120

309,730

9,991

614,300

June

8,970 

8,500

7,890

7,490

7,210

6,720

6,110

5,780

5,430

5,000

4,740

4,590

4,520

4,160

3,820

3,580 

3,380

3,310

3,380

3,310

3,230

3,140

3,020

2,970

2,910

2,860

*2,850

2,860

2,810

2*690

137,260

4,575

272,300

July

2,550 

2,440

2,320

2,220

2,140

2,040

1,940

1,860

1,770

1,670

1,650

1,620

1,590

1,640

1,650

1,590 

1,460

1,380

1,310

1,250

1,210

1,180

1,140

1,090

1,040

1,010

976

944

892

871 

*824

47,267

1,525

93,750

Aug.

T5B~ 811 

752

740

726

720

714

714

690

672

654

644

632

616

600

583 

566

545

529

519

503

498

493

483

478

468

453

448

448

453 

453

18,390

593

36,480

Sept.

453

453

439

426

417

404

400

396

388

380

364

*360

360

353

349

345 

356

364

360

364

364

364

353

341

350

404

871

2.570

2,350

1,830

17,508

584

34,730

Calendar year 1956 : Max 92,100 Mln 477 Mean 7,568 Ac-ft 5,494,000

Water year 1956-57: Max 49,900 Min 330 Mean 4,765 Ac-ft 3,450,000

Peak discharge (base, 22,000 cfs). Feb. 25 (l a.m.) 61,900 cfs (22.21 ft); Feb. 26 (12 p.m.) 

54,800 cfs (21.12 ft); Mar. 6 (2 p.m.) 25,700 cfs (15.71 ft); Mar. 12 (2 p.m.) 27,200 cfs 

(16.04 ft); May 18 (12 p.m.) 25,500 cfs (15.61 ft).__________________________________

* Discharge measurement made on this day.

5L05Z9 O-59-39
596 KLAMATH RIVER BASIN

Klamath River near Klamath, Calif.

Location. Lat 41°30'45", long 123°58'30", in SWj sec. 17, T. 13 N., R. 2 E., on right 

bank 2.8 miles upstream from Turwar Creek and 3.3 miles east of Klamath.

Drainage area. 12,100 sq mi, approximately.

Records available December 1910 to June 192S, October 1950 to September 1957. 

Published as "near Requa" 1910-26.

Gage. Water-stage recorder. Datum of gage Is 5.60 ft above mean sea level (levels by 

Corps of Engineers). Prior to June 1926, staff gage at same site at different datum.

Average discharge. 21 years (1911-25, 1950-57), 17,370 cfs (12,580,000 acre-ft per year).

Extremes. Maximum discharge during year, 160,000 cfs Feb. 26 (gage height, 27.75 ft); 

minimum daily, 2,650 cfs Sept. 4.

1910-26, 1950-57: Maximum discharge, 425,000 cfs Dec. 22, 1955 (gage height, 

49.7 ft, from floodmarks), from rating curve extended above 140,000 cfs on basis of 

floodrouting study; minimum observed, 1,340 cfs July 31, Aug. 1, 1924.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Plow considerably regulated by reservoirs and powerplants above station. Large 

diversions for irrigation above station. Records of chemical analyses for the water 

year 1957 are given in WSP 1523.

Revisions (water years). WSP 1285: 1951(P). WSP 1445: 1918-20.

Rating table, water year 1956-57 (gage height, in feet, 

and discharge, In cubic feet per second)

3.4 

4.0 

5.0 

7.0

2,580

3,340

4,900

9,850

11.0

17.0

25.0

26,000

64,000

132,000

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1 

2 

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

?2

^3

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

3,620 

3,280 

4, SiO"

4,980

4,900

4,900

4,940

4,940

4,940

5,220

5,800

5,860

5,580

5,480

5,460

5,400

5,340

5,460

5,480

5,400

5,380

5,180

6,100

6,300

7,050

15,600

14,700

10,500

9,720

43 , 000 

31,600

256,620

8,278

509,000

Nov.

21,500 

17,800 

15,300

14,700

14,300

13,300

12,500

12,000

11,400

10,800

10,300

9,640

9,250

8,770

8,470

8,440

9,340

10,500

9,580

*8,770

8,380

8,080

7,820

7,600

7,520

7,400

7,350

7,250

7,100

6,900

312,060

10,400

619,000

Dec.

6,900 

6,820

6,480

6,520

7,250

7,350

7,050

6,680

6,620

8,060

32,300

49,900

46 , 600

35,500

25,400

20,500

17,100

15,000

13,400

12,400

11,700

10,900

10,400

9,910

9,610

9,280

8,950

8,650

8,410

8,300 

8,020

441,960

14,260

876,600

Calendar year 1956: Max 213,

Jan.

8,050 

7,900 

7,800

7,650

7,550

7,380

7,400

7,850

7,580

6,980

7,320

8,560

9,850

12,700

19,100

17,300

14,300

12,300

12,000

29,000

27,600

20,600

16,900

15,000

13,700

16,500

11,600

10,600

8,470

9,850 

9,940

379,330

12,240

752,400

Feb.

11,000 

12,000 

11,100

9,640

9,610

9,190

9,400

10,200

10,400

10,000

9,190

8,950

9,490

11,800

14,000

15,900

15,800

15,900

15,900

15 , 500

16,500

21,000

24,900

69,800

119,000

129,000

130,000

83,000

828,170

29,580

tl,643

Mar.

6O,60O 

48,200 

40,900

41,600

71,400

76,700

75,400

65,900

53,800

58,500

63,800

109,000

90,400

71,000

63,000

59,400

54,700

49,300

*45,000

42,600

40,700

38,000

34,800

32,400

34,500

39,500

37,600

35,400

36,800

40, 100 

40,700

tl,651.7

53,280

*3,276

Apr.

41,900 

39,200 

36,700

35,700

35,100

34,900

33,200

30,600

28,700

27,300

25,300

24,900

24,600

24,100

30,600

27,400

25,700

25,300

25,200

24,400

23,000

20,800

19,600

20,600

19,700

19,100

18,700

19,400

20,600

23,000

805,300

26,840

*1,597

May

24,200 

25,500 

25,200

22,100

20,600

21,500

23,200

24,100

24,000

22,800

21,500

20,200

19,400

20,600

19,700

18,600

18,800

34,600

50 , 400

41,900

37,100

33,500

30,200

27,800

25,500

24,100

24,100

23,500

24,100

24,200 

22,500

795,500

25,660

*1,578

June

21,900 

21,200 

19,600

18,000

17,900

16,900

15,400

14,100

13,200

11,600

11,000

11,300

11,300

10,800

10,500

9,790

8,830

8,000

9,010

9,040

8,900

8,700

8,700

8,400

7,000

7,400

7,800

8,200

8,300

8,400

351,170

11,710

696,500

July

7,600 

6,200 

7,300

7,600

7,100

5,900

5,560

5,180

4,630

4,810

5,180

5,420

5,380

5,180

4,880

4,240

4,360

4,810

4,610

4,720

4,650

4,410

3,870

4,270

4,330

4,580

4,590

4,540

4,140

O80" 3,340 

157,060

5,066

311,500

Aug.

4,030 

4,040 

4,010

3,980

3,770

3,890

3,820

3,680

3,660

3,630

3,610

3,580

3,550

3,470

3,470

3,470

3,440

3,420

3,370

2,990

3,200

3,290

3,310

3,630

3,820

2,980

2,760

2,940

3,200

3,260 

3,280

108,550

3,502

215,300

Sept.

3,290 

3,280 

3,160

2.650

3,030

3,480

3,650

3,630

3,470

3,240

3,480

3,550

3,590

3,550

3,340

3,090

3,400

3,340

3,490

3,450

3,590

3,480

3,410

3,470

3,520

3,610

5,520

6,450

6,650

5,860

112,720

3,757

223,600

000 Min 2,850 Mean 25,740 Ac-ft 18,690,000

Water year 1956-57 : Max 130,000 Min 2,650 Mean 16,990 Ac-ft 12,300,000

Peak discharge (base, 50,000 cfs). Oct. 30 (2 p.m.) 52,600 cfs (15.37 ft); Dec. 12 (1 a.m.) 

59,900 cfs (16.42 ft); Feb. 26 (9 p.m.) 160,000 cfs (27.75 ft); Mar. 6 (10 p.m.) 81,200 cfs 

(19.15 ft); Mar. 12 (11 a.m.) 116,000 efs (23.18 ft); May 19 (6:50 a.m.) 55,200 efs (15.46 ft).

* Discharge measurement made on this day.

* Expressed in thousands.

Note. No gage-height record June 21 to July 6; discharge estimated on basis of combined flow of 

Klamath River at Somesbar and Trinity River near Hoopa.
KLAMATH RIVER BASIN 597

Smaller reservoirs in Klamath River basin, Oreg.

Four-mile Lake. Lat 42°27', long 122°14', in NW^ sec. 9, T. 36 S., R. 5 E. , at dam at outlet of Fourmile Lake, 8 miles west of Recreation. Drainage area, 15 sq mi, approximately. Records available, June 1923 to September 1930, June 1932 to September 1957. 

Staff gage with datum at mean sea level, irrigation company datum. Gage read once a 

month November and March, several times a month October and June to September. Maximum 

contents observed during year, 16,610 acre-ft Mar. 1, May 29 (elevation, 6,003.5 ft); 

minimum observed, 5,890 acre-ft Sept. 16, 30 (elevation, 5,990.1 ft). Maximum contents 

observed during periods 1923-30, 1932-57, 16,610 acre-ft June 26, 1953, May 18, 30, 

1954, Mar. 1, May 29, 1957 (elevation, 6,003.5 ft); no usable contents at times.

Reservoir is formed on natural lake by rock-faced earth dam, completed by Rogue 

River Valley Canal Co. about 1922. Capacity, 13,330 acre-ft between elevations 

5,980 (sill of outlet gate) and 6,000 ft (crest of spillway, on which flashboards are 

placed to increase contents to 18,100 acre-ft at elevation 6,005 ft). Figures given 

herein represent usable contents. During irrigation season, all water diverted to Pish 

Lake in the Rogue River basin for irrigation of lands near Medford.

Hyatt Prairie Reservoir. Lat 42 0 10'20", long 122°28'00", in SE^ sec. 16, T. 39 S.,

R. 3 E., at dam of Talent Irrigation District on Keene Creek, 3 miles north of AshlandKlamath Falls highway and 20 miles east of Ashland. Drainage area, about 10 sq mi. 

Records available, December 1922 to September 1957. Staff gage with datum at mean sea 

level, Irrigation District datum. Gage read 1 to 3 times a month October to April, 

1 or 2 times a week May to September. -Maximum contents observed during year, 18,440 

acre-ft May 20 (elevation, 5,018.4 ft); minimum observed, 6,330 acre-ft Sept. 30 

(elevation, 5,002.8 ft). Maximum contents observed during period 1922-57, 18,540 acreft May 3, 1954 (elevation, 5,018.5 ft); no usable contents at times.

Reservoir is formed by rock-faced earth dam, completed by Talent Irrigation District 

in 1923; storage began in December 1922. Capacity, 16,180 acre-ft between elevations 

4,981.7 (sill of gate, approximate) and 5,016.0 ft (spillway crest on which 2.0 ft 

flashboards are placed to increase contents to 18,050 acre-ft). Dead storage 

negligible. During irrigation season all water is diverted to Rogue River basin for 

irrigation of lands near Ashland and Talent.

Other reservoirs.--There are 6 other small reservoirs In Williamson River basin, and 8 in 

Lost River basin, having a total capacity of 12,300 acre-ft. (See also Gerber Reservoir and Clear Lake Reservoir, in "Records collected by agencies other than the 

Geological Survey," p. 12, 13.)

Month-end elevation and usable contents, water year October 1956 to September 1957

Date

Sept. 30. ....................

Water year 1956-57. .......

Elevation 

(feet)t

Contents 

(acrefeet)

Change in 

contents 

(acre-feet)

Fourmile Lake

6,001.2

-

6,000.0 

5,993.9

5,990.1

-

14,420 

12,700 

13,500 

14,500

-

15,600 

16,600 

16,610 

16,610 

16,510 

13,330 

8,460 

6,040 

5,890

-

-1,720 

+800 

+1,000

+9 , 3OO

+1,100 

+1,000 

+10 

0 

-100 

-3,180 

-4,870 

-2,420 

-150

-8,530

Elevation 

(feet)t

Contents 

(acrefeet)

Change in 

contents 

(acre-feet)

Hyatt Prairie Reservoir

5,006.6 

5,010.0

-

5,010.6 

5,012.3

5,018.2 

5,002.8

-

8,810 

9,160 

9,590 

11,250

-

11,700 

13,040 

16,560 

18,070 

18,250 

15,170 

11,320 

7,670 

6,330

-

+350 

+430 

+1,660

+8,050

+450 

+1,340 

+3,520 

+1,510 

+180 

-3,080 

-3,850 

-3,650 

-1,340

-2,480

T Hour of reading not known.

Note. Contents Interpolated for days on which gage reading is not shown.
598 SMITH RIVER BASIN

South Pork Smith River near Crescent City, Calif.

Location. Lat 41°47'30", long 124°01'30", in SE^ sec. 11, T. 16 N., R. 1 E., 300 ft 

downstream from Craigs Creek, 2.0 miles upstream from mouth, and 9.5 miles east of 

Crescent City.

Drainage area. 295 sq mi.

Records available. September 1911 to September 1913, August 1954 to September 1957.

Gage. Water-stage recorder. Altitude of gage is 150 ft (from topographic map). Sept. 9, 

1911, to Sept. 30, 1913, staff gage at site 1.8 miles downstream at different datum.

Extremes. Maximum discharge during year, 33,700 cfs Mar. 11 (gage height, S3.50 ft); 

minimum, 102 cfs Oct. 5-8.

1911-13, 1954-57: Maximum discharge, 108,000 cfs Dec. 22, 1955 (gage height, 

36.95 ft), from rating curve extended above 42,000 cfs on basis of slope-area determination of peak flow; minimum, 100 cfs Sept. 13, 1955.

Remarks. Records excellent. No storage or diversion.

Rating tables, water year 1956-57.(gage height, in feet, and 

discharge, in cubic feet per second)

Oct. 1 to Apr. 14 Apr. 15 to Sept. 30

4.6 100 10.0 3,600 4.8 112 7.0 965

5.5 334 13.0 7,900 5.2 208 8.0 1,660

6.5 725 17 15,800 5.6 324 10.0 3,600

8.0 1,660 21 26,200 6 .O 475 12 6,300

Discharge, in cubic feet per second, water year October 1956 to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

?2

^3

24 

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

106

104

104

*104

102

102

102

102

110

181

292

191 

144

128

123

119

126

228

189

146

146

149

467

298 

1,570

6,100

2,670

1,400

2,890

16,400 

5,550

40,443

1,305

80,220

Nov.

4,850

4,160

2,940

2,530

2,020

1,660

1,410

1,210

*1,050

924

825

745 

684

640

599

608

1,240

1,080

847

730

662

608

570

538 

510

482

463

446

428 

410

35,869

1,196

71,150

Dec.

397

386

376 5TS554

534

470

452

452

2,170

15,900

lo)700

5,730

3,560

2,700

2,150

1,800

1,540

1,380

1,250

1,120

1,040

957 

891

830

780

740

698 

680

658

71,253

2,298

141,300

Jan.

626

599

582

562

542

522

¥04

775

676

775

*1,300

2,020 

1,860

1,840

4,460

2,960

2,070

1,620

2,260

7,770

4,260

2,850

2,210

1,910 

1,690

1,460

1,310

1,200

1,100

1,030

974

54,417

1,755

107,900

Feb.

*1,850

2,000

,520

,310

,160

,070

, 120

,920

,810

,510

,310

,180 

,310

,820

,840

,720

,690

,640

,480

,450

,160

,210

3,810

14,600 

12,600

25,700

10,900

*6,480

-

108,170

3,863

214,600

Mar.

4,590

3,530

3,230

6,510

10,800

10,000

9,160

6,360

7,530

5,920

16,100

19,000 

9,390

6,640

6,570

5,580

4,750

3,950

3,370

3,030

2,680

2,360

2,120

1,980 

3,840

*3,650

2,880

2,600

3,280

3,520

5,800

180,720

5,830

358,500

Apr.

4,730

3,600

3,020

2,7OO

2,440

2,300

2,010

1,810

*1,670

1,560

1,430

1,580 

1,660

3,690

2,940

2,350

2,100

1,920

1,810

1,690

1,560

1,450

1,370

1,290 

1,210

1,150

1,110

1,110

1,160

1,150

59,570

1,986

118,200

May

1,130

1,280

1,100

998

978

972

935

*899

863

851

806

755 

812

917

840

780

1,160

5,460

4,230

4,770

3,430

2,600

2,130

1,810 

1,570

1,420

*1,290

1,180

1,080

998

929

48,973

1,580

97,140

June

869

812

765

735

695

676

645

622

600

573

555

551 

535

547

543

503

475

459

447

431

423

411

395

384 

373

358

351

344

334

331

15,742

525

31,220

July

324

321

311

302

292

289

283

277

271

268

265

265 

283

451

338

289

268

256

254

248

242

240

234

229 

*226

218

216

213

208

205

203

8,289

267

16,440

Aug.

200

195

192

190

192

198

195

190

190

187

185

182 

177

175

172

170

168

165

163

160

158

156

153

151 

148

148

146

146

146

144

144

5,286

171

10,480

Sept.

141

139

136

134

134

132

132

130

127

*125

123

125 

125

125

123

125

125

125

121

119

116

114

112

TIE 

114

238

735

311

229

198

4,845

162

9,610

Calendar year 1956: Max 32,100 Min 102 Mean 2,066 Ac-ft 1,500,000

Water year 1956-57: Max 23,700 Mln 102 Mean 1,736 Ac-ft 1,257,000

Peak discharge (base, 3O.OOO cfs).--Dec. 11 (2 p.m.) 30,400 cfs (22.45 ft); Feb. 26 (8 a.m.) 

55,600 efa (25.47 ft); Mar. 11 (9 p.m.) 35,700 cfs (23.50 ft).________________________

* Discharge measurement made on this day.
SMITH RIVER BASIN 599

Smith River near Crescent City, Calif.

Location. Lat 41°47'20", long 124°03'20", In SWi sec. 10, T. 16 N., R. 1 E. , on left 

bank 0.5 mile downstream from South Fork and 8 miles east of Crescent City.

Drainage area . 613 sq ml.

Records available . October 1931 to September 1957.

Gage. Water-stage recorder. Altitude of gage Is 90 ft (from topographic map).

Average discharge . 25 years (1931-37, 1938-57), 3,696 cfs (2,676,000 acre-ft per year).

Extremes. Maximum discharge during year, 67,100 cfs Feb. 26 (gage height, 26.93 ft); mlnimum, 218 cfs Oct. 8.

1931-57: Maximum discharge, 165,000 cfs Dec. 22, 1955 (gage height, 41.20 ft), 

from rating curve extended above 33,000 cfs on basis of slope-area determination at 

gage height 39.51 ft; minimum, 168 cfs Oct. 21, 1931.

Remarks. Records good except those for Oct. 30, Feb. 23, 28, which are fair. No regulation or diversion. Records of chemical analyses for the water year 1957 are given 

In WSP 1523.

Rating tables, water year 1956-57 (gage height, In feet, and 

discharge, In cubic feet per second)

3.9

4.7

6.0

7.5

Oct.

215

400

955

1,950

1-30

9.

13.

17.

22.

.5

,o

.0

.0

3,

9,

18,

40,

990

240

900

000

3

5,

6.

8.

10.

Oct. 31 to Sept.

.9

.0

.0

,0

.0

224

545

1,000

2,530

4,880

12.

15

19.

24.

.0

.0

.0

.0

30

8,140

15,000

27,200

50,000

Discharge, In cubic feet-per second, water year October 1956 to September 1957

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

30 

31

Total

Mean

Ac-ft

Oct.

227 

227

225

*222

222

222

220

220

227

347

564

376

283

260

250

246

256

428

373

297

288

297

958

624

3,690

12 , 500

6,060 

3,610

5,080

358.000 

12,100

88,899

2,868

176,300

Nov.

12,400 

10,200

6,660

5,270

4,100

3,300

2,790

* ,410

,100

,850

,670

,500

,390

,280

,210

,220

,070

,600

,960

,660

,470

,350

,250

,170

,100

1,050

1,000 

962

923

885

79,800

2,660

158,300

Dec.

850 

825

805

1,160

1,270

1,240

1,100

1,040

1,030

5,070

55,900

*21,300

25,000

12,100

7,580

5,580

4,450

5,720

5,200

2,850

2,570

2,310

2,120

,960

,820

,700

,590 

,490

,420

,380 

,350

153,560

4,954

304 , 600

Jan.

,280 

,220

,180

,130

,100

.060

,190

,610

,420

,740

* ,010

,190

,240

,660

1 ,100

,280

,960

5,860

4,770

17.500

9,560

6,510

4,910

4,220

5,720

5,260

2,920 

2,650

2,590

2,210 

2,080

126,730

4,088

251,400

Feb.

*4,290 

5,060

5,660

3,070

2,700

2,450

2,510

4,700

4,640

3,730

3,180

2,810

2,960

4,550

4,560

5,860

5,620

5,450

5,090

5,050

4,520

37,600

a6,840

a50,900

27,500

47.600

321,600 

*a!2, 100

-

.......

250,000

8,214

456,200

Mar.

8,560 

6,520

6,010

15,400

22,100

21,900

19,000

15,000

16,500

12,500

55,000

59,500

18,700

12,800

13,300

11,600

9,580

7,910

6,740

5,880

5,200

4,540

4,080

5.860

8,720

7,750

5,750 

4,990

6,070

7,110 

11,800

567,750

11,860

729,400

Apr.

9.820 

7,220

5,800

5,050

4,450

4,130

5,610

5,240

*2,980

2,780

2,600

2,770

5,040

7,150

6,060

4,670

4,010

3,590

5,550

5,090

2,830

2,600

2,420

2,270

2,150

2,000

1,920 

1,920

1,950

1,910

111,340

3,711

220,800

May

1,900 

2,150

1,840

1,700

1,650

1,620

1,560

1,520

*1,470

1,450

1,420

1.520

1,450

1,660

1,560

1,450

1,810

10,600

8,280

9,960

6,880

5,100

4,070

5,410

2,900

2,570

*2,310 

2,110

1,940

1,800 

1,690

91,110

2,939

180,700

June

,590 

,480

,400

,340

,280

,240

,190

,150

,090

,060

,020

,030

984

,020

,020

928

885

855

850

810

790

768

740

727

704

688

672 

664

652

656

29,243

975

58,000

July

624

620

604

588

573

562

556

545

534

551

524

520

538

795

658

573

551

510

500

492

482

475

461

450

447

*454

425 

422

416

413 

410

16,223

525

32,180

Aug.

404 

392

383

383

383

398

598

586

383

380

374

568

556

550

547

541

532

329

526

320

515

310

308

505

298

292

292 

292

292

290 

290

10,617

542

21,060

Sept .

288 

282

278

275

272

270

270

261

254

*254

254

256

256

256

256

256

256

256

256

247

242

238

238

238

236

489

1.490 

668

500

422

10,014

334

19,860

Calendar year 1956: Max 72,000 Mln 220 Mean 4,449 Ac-ft 3,231,000

Water year 1956-57: Max 47,600 Mln 220 Mean 47,600 Ac-ft 2,609,000

Peak discharge (bsse, 36,000 cfs). Oct. 30 (time unknown) 59,500 cfs (21.9 ft)j Dec. 11 (1:30 p.m.) 

65,400 cfs (26.65 ft); Feb. 26 (8:50 s.m.) 67,100 cfs (26.93 ft); Mar. 11 (9 p.m.) 64,200 Cfs 

(26.45 ft)._________________________________________________________________________ 

* Discharge measurement made on this day. 

a Fragmentsry or no gage-height record; disehsrge estimated on basis of psrtly estimated gage

heights snd records for South Fork Smith River near Crescent City.
600 SMITH RIVER BASIN

Rowdy Creek at Smith River, Calif.

Location. Lat 41°55'18", long 124°08'45", in NE£SW£-sec. 26, T. 18 N., R. 1 W., on left 

bank 0.4 mile downstream from Dominie Creek, 0.6 mile south of town of Smith River, 

and 12.2 miles north of Crescent City.

Drainage area. 34.0 sq mi.

Records available. June to September 1957.

Gage. Water-stage recorder. Datura of gage is 25.39 ft above mean sea level, datum of 1929.

Extremes. Maximum discharge during period, 442 cfs Sept. 26 (gage height, 5.28 ft); no 

flow Aug. 27 to Sept. 25.

Flood of Dec. 22, 1955, reached a stage of 10.8 ft, from floodmarks (discharge, 

4,760 cfs on basis of slope-area determination of peak flow).

Remarks. Records good. No regulation. Town of Smith River diverts water from a tributary above station.

Rating table, June 20 to Sept. 30, 1957 (gage height, In feet, 

and discharge, In cubic feet per second)

2.95

3.0

3.1

3.2

0

.5 

1.5 

3.0

3.3

3.4 

3.6

5.0

9.5

21

3.8 39

4.1 77

4.4 145

Discharge, In cubic feet per second, June to September 1957

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June

.

-

-

-

_

_

-

_

-

_

_

_

_

-

_

_

_

_

*29

27

25

24

23

22

20

16

17

19

18

_

_

-

July

19

19

16

17

16

16

14

13

13

12

14

13

17

32

20

15

13

12

12

11

11

10

9.0

*10

9.0

9.0

6.4

6.4

5.4

TT

7.2

405.0

13.1

803

Aug.

6.8

4.8

4.2

5.9

5.9

6.8

7.2

67ff

3.8

3.8

4.8

4.6

4.4

4.2

4.2

3.0

3.2

3.4

2.1

2.8

2.6

2.2

1.1

1.3

.8

.1

0

0

0

0

0

100.8

3.25

200

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

137

79

30

19

14

279

9.3

553

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

Discharge measurement made on this day.
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS 601

Kern River at Isabella, Calif.

Location.--Lat 35°40", long 118°28', in SWij sec. 17, T. 26 S., R. 33 E., 0.5 mile upstream 

from South Pork Kern River and 0.5 mile north of Isabella.

Drainage area.--1.085 sq mi (revised).

Records available.--October 1910 to September 1912 (fragmentary), October 1925 to 

Sept. 30, 1935 (discontinued).

Gage. Water-stage recorder. Altitude of gage is 2,490 ft (from topographic map). Prior 

co Jan. 26, 1926, staff gage 500 ft downstream at different datum.

Average discharge.--11 years (1910-11, 1925-35), 581 cfs, combined flow of Kern River at 

Isabella and Bore1 Canal, median of yearly mean discharges, 500 cfs.

Extremes (river only).--1911-12, 1925-35: Maximum discharge, 6,570 cfs (revised) Nov. 27, 

1926 (gage height, 12.73 ft); minimum, 0.2 cfs on several days in September 1934. 

Revisions.--The maximum discharge for the water year 1927 has been revised to 

6,570 cfs Nov. 27, 1926 (gage height, 12.73 ft), superseding figure published in 

WSP 651.

Remarks.--Diversions for irrigation and power above station. Borel Canal diverts about 

4 miles above station. Records for flow in river when combined with records for Borel 

Canal show total flow from basin.

Revisions. Revised figures of discharge in river only, in cubic feet per second, for 

water years 1927, 1931-32, superseding those published in WSP 651, 721, and 736, 

are given herewith:

Date

1926

Nov. 24

25

26

27

28

1927

Feb. 16

17

18

1931

Aug. 17

18

Discharge

127

747

1,150

3,020

464

2,O60

2,340

3,660

117

120

Date

1931-Con.

Aug. 19

20

21

22

23

24

25

26

27

28

29

30

31

Sept. 1

Discharge

117

115

108

108

102

100

98

96

94

90

88

106

130

130

Date

1931-Con.

Sept. 2

3

4

5

6

7

8

9

10

11

12

13

14

15

Discharge

127

120

115

117

144

135

127

120

115

112

108

104

104

100

Date

1931-Con.

Sept. 16

17

18

19

20

21

22

23

24

25

26

27

28

29

Discharge

100

102

102

98

96

96

96

96

94

94

94

94

94

94

Date

1931-Con.

Sept. 30

Oct. 1

2

3

4

5

6

7

8

9

10

Discharge

94

90

88

88

86

86

90

88

88

88

55

Month Maximum

3,020

90

Minimum

1.8

1.0

1.8

Mean

191

143

30.5

Runoff in 

acre-feet

11,400

104,000

446,000

3,230

1,880

Revisions.--Revised figures of combined flow of river and Borel Canal, in cubic feet per 

second, for the water years 1927, 1931-32, superseding those published in WSP 651, 721, 

and 736, are given herewith:

Date

1926

Nov. 24

25

26

27

28

1927

Feb. 16

17

18

1931

Aug. 17

18

Discharge

400

1,140

1,610

3,480

996

2,460

2,840

4,160

120

120

Date

1931-Con.

Aug. 19

20

21

22

23

24

25

26

27

28

29

30

31

Sept. 1

Discharge

117

115

108

108

102

100

98

96

94

90

88

106

130

130

Date

1931-Con.

Sept. 2

3

4

5

6

7

8

9

10

11

12

13

14

15

Discharge

127

120

115

117

144

135

127

120

115

112

108

104

104

1OO

Date

1931-Con.

Sept. 16

17

18

19

20

21

22

23

24

25

26

27

28

29

Discharge

loo

102

102

98

96

96

96

96

94

94

94

94

94

94

Date

1931-Con.

Sept. 30

Oct. 1

2

3

4

5

6

7

8

9

10

Discharge

94

90

88

88

86

86

90

88

88

88

94

Month

February 1927 ..................................

August 1931 ....................................

October 1931. . ............................... .

Water year 1931-32 ...........................

Maximum

4,160

4,160

4,160

161

1,140

3,320

Minimum

225

88

86

86

Mean

1,100

944

248

859

Runoff in 

Acre-feet

60,900

684,000

624,000
602 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

South Fork Tule River neap Porterville, Calif.

Location. Lat 36°02' , long 118°47', in Tule Indian Reservation, 2 miles downstream from 

Rocky Creek, 8 miles upstream from mouth, and 14 miles southeast of Porterville.

Drainage area. 79.3 sq mi.

Records available. October 1910 to March 1925, January 1927 to September 1932 (discontinued).

;e. Staff gag 

rune 18, 1921

. Altitude of gage is 1,100 ft (from topographic map) 

at various sites within 200 ft at different datums.

Prior to

Average discharge.--21 years (1910-25, 1926-32), 33.7 cfs (24,400 acre-ft per year).

Extremes. 1910-25, 1927-32: Maximum discharge observed, 3,170 cfs (revised) Jan. 26, 

1914 (gage height, 8.0 ft, site and datum then in-use); no flow for periods in 1924, 

1929, 1931.

Revisions. The maximum discharge for the water year 1914 has been revised to 

3,170 cfs Jan. 26, 1914 (gage height, 8.0 ft, site and datum then in use), superseding 

figure published in WSP 391.

Remarks. Diversions for irrigation above station.

Revisions. Revised figures of discharge, in cubic feet per second, for a period in water 

year 1914, superseding those published in WSP 391, and revised figures of monthly discharge, in cubic feet per second, for December 1919 in water year 1920, superseding 

those published in WSP 511, are given herewith;

1914 

Jan. 22........ 452

H3........ 232

24........ 1,760

25........ 1,760

1914-Con. 

Jan. 26........ 2,820

27........ 950

28........ 303

1914-Con. 

Jan. 29........ 163

30........ 163

31. ....... 163

Month

Calendar year 1914........

December 1919 . ..............

Water year 1919-20. .......

Cfs-days

21,013.0

-

-

Maximum

2,820

1,030

Minimum

1.2

4

Mean

57.6

t27

36.8

Runoff in 

acre-feet

41,700

1,600

26,800

t Only monthly figures revised; revised daily figures not available.

South Fork Kaweah River near Three Rivers, Calif.

Location. Lat 36°22'30", long 118°51'20", in SE^- sec. 8, T. 18 S., R. 29 E., 500 ft

upstream from Cinnamon Creek, 4j miles southeast of Three Rivers, and 5 miles upstream 

from Kaweah River.

Drainage area. 72.7 sq mi.

Records available. September 1911 to September 1924 (discontinued). 

Gage. Staff gage. Altitude of gage is 1,500 ft (from topographic map). 

Average discharge.--13 years, 67.9 cfs (49,200 acre-ft per year).

Extremes. 1911-24: Maximum discharge, 1,880 cfs Jan. 17, 1916 (gage height, 6.3 ft), 

from rating curve extended above 480 cfs: minimum, 0.7 cfs Aug. 28-31, Sept. 1, 8-11, 

1924.

Remarks. Two small ditches divert for irrigation above station.

Revisions.--Revised figures of discharge, in cubic feet per second, for the water years 

1913 and 1915, superseding those published in WSP 361 and 411, are given herewith:

July 21, 1913........... 10

July 22, 1913........... 13

July 23, 1913........... 15

July 25, 1913........... 20

July 26, 1913........... 20

July 27, 1913........... 17

n , ...........

Month

Water year 1912-13..... 

Calendar year 1913.....

Water year 1914-15..... 

Calendar year 1915. ....

Maximum

31

290 

290

112

600 

600

Minimum

8.5

3.3

4.5

ie

5.5

4.5

'

Mean

17.7

37.6 

38.4

42.4

74.5 

74.7

Runoff in 

acre -feet

1,090

27,300 

27,800

2,600

53,900 

54,100
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS 603

Dinkey Creek at mouth, Calif.

Location.--Lat 36°55', long 119°08', in see. 3, T. 12 S., R. 26 E. (unsurveyed), half a 

mile upstream from mouth and half a mile northwest of Baloh Camp.

Drainage area.--136 sq mi.

Records available.--January 1920 to November 1937 (station destroyed by flood of Dec. 11, 

1937).

Average discharge. 16 years (1921-37), 179 cfs (revised), 130,000 acre-ft per year.

Extremes.--1920-37; Maximum discharge, 4,320 cfs Feb. 13, 1937 (gage height, 11.67 ft), 

from rating curve extended above 2,000 cfs; minimum daily, 0.9 cfs Aug. 26-30, 1931. 

Flood of Dec. 11, 1937, which destroyed station,exceeded that of Feb. 13, 1937.

Revisions.--Figures of maximum discharge for the water years 1921 and 1924 have been 

revised to 1,270 cfs Apr. 29, 1921 (gage height, 8.14 ft), and 555 cfs Apr. 10, 1924 

(gage height, 6.70 ft), superseding those published in WSP 551 and 591, respectively.

Remarks. No diversions above station.

Revisions (water years).' Revised figures of discharge, in cubic feet per second, for the 

water years 1920 and 1922, superseding those published in WSP 551 and 591, are given 

herewith:

Date

1920

May 1

2

3

4

5

6

7

8

9

10

11

12

13

Discharge

666

658

634

666

654

845

915

835

785

654

622

662

583

Date

1920-Con.

May 14

15

16

17

18

19

20

21

22

23

24

25

26

Discharge

646

840

980

1,080

1,230

1,430

1,440

1,360

1,180

1,05O

925

875

935

Date

1920-Cbn.

May 27

28

29

30

1922

May 1

2

3

4

5

6

7

Discharge

970

1,000

1,000

930

1,140

1,250

1,34-0

1,470

1,720

1,810

1,630

Date

1922-Con.

May 8

9

1011

12

13

14

15

16

17

18

19

20

Discharge

1,280

905

725

670

810

1,130

1,420

1,360

1,420

1,720

1,620

1,520

1,170

Date

1922-Con.

May 21

22

23

24

25

26

27

28

29

30

31

Discharge

,120

,520

,660

,760

,530

,700

,650

1,620

1,700

1,760

1,820

Month

May 192O. ...........................

Water ye 

Calendar year 1922 ................

Maximum

1,440

2,000

Minimum

583

7

Mean

903

1,420 

299 

308

Runoff in 

acre-feet

55,500

87,200 

217,000 

223,000
604 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

San Joaquin River at Herndon, Calif.

Location. Lat 36°50'35", long 119°55'55", in SE£ sec. 31, T. 12 S., R. 19 E., at

 Southern Pacific Railroad bridge, 0.9 mile northwest of Herndon, 10.9 miles (revised)

northwest of Fresno, and 21.7 miles (revised) downstream from Friant. 

Records available.--January 1895 to December 1901 (monthly discharge only, published in

 WSP ^99) . 5age heights only, January 1891 to December 1894 and January 1902 to December 1909.

Gage.--Staff gage. Altitude cf gage is 225 ft (from topographic map). 

Average discharge.--6 years (1895-1901), 2,440 cfs (1,766,000 acre-ft per year). 

Extremes .--1895^36: Maximum daily discharge during water year, 18,800 cfs May 29 (gage

 height, 10.20 ft); minimum daily, 250 cfs Many days in October, November, January and 

September.

1896-97: Maximum discharge observed during water year, 20,400 cfs Feb. 2 (gage 

height, 11.0 ft); minimum observed, 150 cfs Sept. 16-19, 22-30.

1897-98: Maximum discharge observed during water year, 6,090 cfs Apr. 26 (gage 

height, 6.25 ft); minimum observed, 180 cfs Oct. 1.

1898-99: Maximum discharge during water year, 24,400 cfs Mar. 25 (gage height, 

12.08 ft); minimum observed, 120 cfs Sept. 24-30.

1899-1900: Maximum discharge observed during water year, 24,800 cfs Jan. 3 (gage 

height, 12.0 ft); minimum observed, 100 cfs Oct. 8.

1900-1901: Maximum discharge observed during water year, 33,000 cfs Nov. 22 (gage 

height, 14.0 ft); minimum observed, 180 cfs Oct. 3,4.

1895-1901: Maximum discharge observed, 33,000 cfs Nov. 22, 1900 (gage height, 

14.0 ft); minimum observed, 100 cfs Oct. 8, 1899. 

Remarks. Slight amount of regulation from reservoirs and powerplants above station.

Diversions unknown.

Revisions. Revised figures of discharge, in cubic feet per second, for the water years 

1895-1902, superseding those published in WSP 299, are given herein. Complete tables 

of discharge are given for all water years except 1895 for which revised figures only 

are given.

Date

1895 

Sept. 1 

Z 

3 

4 

5 

6

Discharge

670 

760 

760 

760 

670 

670

Date

1895-Con. 

Sept. 7 

8 

9 

10 

11 

12

Discharge

520 

450

390 

340 

340 

340

Date

1895-Con. 

Sept. 13 

14 

15 

16 

17 

18

Month

September 1895 ....................

Discharge

520 

7,620 

2,940

1,770 

1,770 

1,390

Maximum

7,620

Date

1895-Con. 

Sept. 19 

20 

21 

22 

23 

24

Minimum

290

Discharge

1,160 

1,050 

950 

850 

590 

520

Date

L895-Con. 

Sept. 25 

26 

27 

28 

29 

30

Mean

1,002

Runoff In 

acre-feet

59,620

Discharge

450 

450 

390 

340 

340 

290

Discharge, In cubic feet per second, water year October 1895 to September 1896

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28 

29

30

31

Total

Mean

Ac-ft

Oct.

290 

290

290

290

290

340

340

340

340

340

*340

340

340

290

290

290

290

290

290

340

590

1.050

950

850

850

670

450

340 

340

290

E_5()

12,880

415

25,550

Nov.

250 

250

250

250

340

340

290

290

290

340

355" 390

390

390

340

340

340

340

290

290

290

290

290

290

*250

250

250

340 

340

340

9,320

311

18,490

Dec.

509

509

426

426

426

426

260

260

260

260

260

260

260

260

260

260

260

260

260

260

426

677

552

509

509

426

426

426 

426

426

343

11,548

373

22,905

Jan.

340 

250

250

250

340

430

430

340

340

340

340

340

340

340

340

520

940

2,390

12.800

3,800

11,240

7,000

3,440

2,560

2,050

1,750

2,050

3,800 

2,560

2,050

1,750

65,710

2,119

130,335

Feb.

1,600 

1,600

1,450

1,450

1,180

1,060

1,060

940 940"

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,180

1,180

1,300

1,300

1,300 

lj7J50

34,130

1,177

67,696

Mar.

1,750 

1,900

1,750

1,600

1,300

1.180

1,180

1, 180

1,300

1,300

1,450

1,600

1,750

1,750

1,750

2,050

2,050

2,050

2,050

2,050

2,560

2,560

3,260

3,440

3,260

3,440

12.180

5,650 

4,600

3,800

3,260

81,000

2,612

160,649

Apr.

3,080 

2,730

2,390

2,220

2,220

2,050

2,390

2,050

2,050

2,050

2,560

2,390

*2,220

2,390

2,220

2,560

5,010

3,260

2,390

2,050

2,050

2,050

1.900

1,900

2,050

5.650

4,600

3,440 

3,080

3,260

80,260

2,675

159,192

May

2,900 

3,080

3,260

3,620

 3,620

4,400

3,440

2,900

2,900

2.560

2,560

3,080

3,080

3,620

4,200

4,200

3,800

4,200

3,800

3,440

3,800

3,800

4,000

5,010

6,090

8,620

8,620

11,550 

18.800

15,480

12, 800

167,230

5,394

331,700

June

15,120 

16,560

16.920

14,760

14,760

14,080

13,760

13,760

31,440

14,080

*13,440

11,240

10, 620

13,760

13,760

13,440

14,080

13,440

11,240

10,620

11,240

10,320

9,160

8,350

8,350

7,270

6,770

6.540 

6,540

6,540

353,960

11,799

702,106

July

5,650 

5,220

4,800

4,600

5,860

7,270

6,090

5,440

5,220

5,440

8,080

6,090

5,650

5,010

4,200

3,440

3,260

4,200

3,440

3,260

2,900

2,730

3,080

2,900

2,900

2,900

2,730

2,050 

1,900

^600

1,600

129,510

4,177

256,865

Aug.

1.500 

1,180

1,300

1,300

1,180

1,180

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,060

1,300

1,300

1,180

1,060

1,060

1,060

1,060

820

700

700 

700

700

700

32,500

' 1,048

64,463

Sept.

1. 160 

1,050

950

850

760

760

590

950

1,050

850

850

670

670

590

520

520

520

520

520

450

390

390

390

390

390

390

340

340 

250 

250

18,320

611

36,340

Calendar year 1895: Max 19,960 Mln 250 Mean 3,830 Ac-ft 2,770,000

Water year 1895-96: Max 18,800 Mln 250 Mean 2,720 Ac-ft 1,980,000

* Discharge measurement made on this day.
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS 

San Joaquin River at Herndon, Calif. Continued 

Discharge, in cubic feet per second, water year October 1896 to September 1897

605

Day

1 

2

5

4

5

6

7

8

9

10

11

12

15

14

15

16

17

18

19

20

21

22

25

24 

25

26

27

28

29

30 

31

Tota:

Mean

Ac-ft

Oct.

250 

250

250

340

540

290

290

250

250

250

250

250

250

250

250

250

250

250

250

250

210

290

290

210 

210

210

290

290

590 

590

450

8,890

287

17,650

Nov.

450 

*590

590

590

590

590

590

590

590

590

850

760

590

520

520

450

450

450

450

450

450

590

450

590 

1.900

1,270

1,270

760

590

520

17,640

588

54,990

Dec.

450 

590

590

590

390

450

590

520

450

450

450

450

450

850

1.590

1,050

850

670

590

590

520

450

450

590

590

450

450

590

670

670 

590

17,450

562

54,570

Jan.

760 

590

590

520

520

590

520

520

520

520

520

590

590

590

670

590

590

590

520

520

520

450

450

450 

450

450

450

450

450

670 

950

17,160

554

54,040

Feb.

2,180 

14.000

5, 280

2,520

1,770

5,870

5,110

2,470

1,770

1,640

1,590

1,270

1,050

 1,160

1,050

1,050

950

1,770

1,640

1,770

1,510

1,270

1,270

1,050 

950

950

850

1,510

-

60,870

2,170

120,700

Mar.

1,510 

2,520

1,510

1,510

1,510

1,160

5.450

2,620

1,770

1,510

1,510

1,590

1,270

1,270

1,270

1.160

1,590

1,270

2,470

1,510

1,590

1,270

1,270

1,590 

1,270

1,590

2,040

1,770

5,450

1,770

1,510

51,900

1,670

102,900

Apr.

1.510 

1,900

1,510

1,510

1,640

1,510

1,770

1,900

5,110

5,810

4,580

5,420

5,870

6,540

7,100

8,680

8,680

9.800

8,400

6,540

5,200

5,200

4,990

4,780 

4,380

5,870

7,620

8,140

8,140

7,880

155,580

5,120

504 ; 600

May

7.620 

7,620

8,140

11,500

12,500

12,800

12,500

10,100

9,800

9,800

10, 100

10, 700

12,200

12,800

11,600

11,000

9,240

9,520

9,240

8,680

11,500

13, 400

14 , 600

15.500 

14,000

12, 200

10, 700

11,000

11,300

10,700

*10,400

542,160

11,000

678,700

June

9.800 

7,560

6,590

7, 100

6,840

7,100

6,840

7,560

7, 100

6,840

5,420

5,420

5,640

6,840

5,870

5,200

5,650

5,110

2,620

2,620

2,520

2,180

2.040

2,180 

2,180

2,470

2,040

2,180

2,520

2,620

141,850

4,750

281,500

July

5,280 

4.000

4,000

4,000

5,650

5,650

5,280

2,940

2,620

2,520

2,470

2,780

2,940

5,650

5,280

*5,280

2,940

2,780

2,470

2,520

2,180

2,040

2,040

1,770 

1,510

1,510

1,510

1,510

1,510

1,510 

1.590

81,070

2,620

160, 800

Aug.

1.590 

1,590

1,270

1,270

1,270

1,050

1,050

1,050

1,160

1,050

950

950

850

760

670

760

760

760

670

670

670

590

590

590 

670

670

590

520

520

520 

450

26,150

845

51,830

Sept.

590 

590

590

590

590

540

290

 290

290

210

210

210

210

210

180

150

150

150

180

210

210

180

180

180 

180

180

180

180

180

180

7,060

255

14,000

Calendar year 1896: Max 18,800 Min 210 Mean 2,750 Ac-ft 2,000,000

Water year 1896-97: Max 15,500 Min 180 Mean 2,540 Ac-ft 1,840,000

Discharge measurement made on this day.

Discharge, in cubic feet per second, water year October 1897 to September 1898

Day

1

2

5

4

5

6

7

8 

9

10

11

12

15

14

15

16

17

18

19

20

21

22

25

24

25

26

27

28

29

30

51

Total

Mean

Ac-ft

Oct.

180

250

250

250

250

250

250

250 

210

210

210

210

210

250

250

590

590

250

250

250

250

250

250

290

450

590

590

590

520

520

9,850

517

19,500

Nov.

520

*520

520

520

590

390

390

390 

590

590

590

390

450 '450

450

590

290

590

290

290

290

5.650

1,770

1,050

2,180

1,640

2,470

1,050

670

850

25,700

790

47,010

Dec.

670

760

850

850

850

760

670

670 

3.450

2,940

1,640

950

670

850

760

760

850

850

760

760

*670

670

670

670

590

590

590

850

760

760

850

28,990

935

57,500

Jan.

850

760

760

760

670

670

670

760 

760

760

760

670

670

670

670

760

670

670

670

670

670

760

760

760

670

670

670

670

760

760

760

22,210

716

44,050

Feb.

760

760

760

760

670

670

950

1.510 

1,270

1.050

950

850

850

850

850

850

950

850

850

950

950

850

850

950

1,050

1,050

1.270

950

-

25,880

924

51,350

Mar.

950

1,050

950

950

850

1,050

1,050

1,160 

1,160

1,270

1.590

1,050

1,050

950

1,050

1,050

1,050

1,050

950

950

850

850

850

850

850

950

950

950

1,050

1,050

1,050

51,230

1,008

61,940

Apr.

1.020

1,070

1,120

1,070

1,020

1,070

1,240

1,240 

1,240

1,550

1,550

2,030

2,190

2,740

5,260

5,440

5,440

5,640

*4,050

4,460

4,580

5,260

5,540

5,840

5,140

5.850

5,850

5,600

4,580

5,840

88,520

2,944

175,180

May

3,260

3,260

3,540

2,850

2,850

2,490

2,410

2,660 

2,850

3,080

4,250

5.140

4,800

4,250

4,050

3,840

3,170

3,170

3,170

3,080

2,750

2,490

2,490

2,490

2,490

2,920

4,050

3,840

2,830

»2,660

2^ Z&Q

99,380

5,206

197,151

June

1,900

2,620

2,180

2,040

2,040

2,180

2,620

2,940 

2,620

2,520

2,040

2,520

2,780

2,780

2,620

2,470

2,940

5.280

5,110

2,940

2,940

2,470

2,520

2,040

1,900

1,900

1,900

2,180

1,900

1.640

71,950

2,598

142,700

July

1.750

1,610

1,240

1,120

1,120

1,120

1,120

1,500 

1,240

1,240

1,180

1,120

1,120

1,020

1,020

1,020

1,020

916

763

763

712

712

712

610

610

610

610

*610

610

530 

6lO

29,718

959

58,940

Aug.

610 610"

610

610

610

610

610

530 

530

500

500

500

500

500

500

500

500

500

500

440

440

440

440

350 536"

350

350

350

350

350

350

14,890

480

29,530

Sept.

350

*350

350

290

290

290

290

290 

290

290

240

240

240

240

240

220

220

220

220

220

220

220

220

220

220

220

265

1.880

1,070 

967

10, 882

563

21,600

Calendar year 1897 : Max 15,500 Min 180 Mean 2,587 Ac-ft 1,870,000

Water year 1897-98 : Max 5,850 Min 180 Mean 1,252 Ac-ft 906,000

* Discharge measurement made on this day.
606 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

San Joaquin River at Herndon, Calif. Continued

Discharge, In cubic feet per second, water year October 1898 to September 1899

Day

1

2

3

4

5

6

7

8

9

10

11

12 

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

-Ac-ft

Oct.

763

7^3

712

661

530

530

530

530

530

530

530

500 

500

530

500

500

530

530

500

500

500

440

440

440

440

440

380

380

380

350

35o

15,739

508

31,220

Nov.

350

35o

350

350

350

350

350

350

350

290

290

290 

290

290

290

290

290

290

290

290

290

290

290

290

290

290

290

290

290

290

9,240

308

18,327

Dec.

290

500

500

380

350

350

350

350

350

290

290

240 

240

240

240

240

240

240

290

*290

290

1.180

763

570

500

440

380

380

380

380

380

11,903

384

23,611

Jan.

390 390"

390

390

390

390

390

390

520

590

760

ii270 

766

590

590

590

670

670

670

670

670

590

760

670

670

590

590

670

670

670

670

18,690

603

37,070

Feb.

670

670

670

670

590

590

590

590

520

520

590

590 

590

590

590

670

670

670

670

1,050

1,050

1.160

1,160

1,160

1,160

950

850

760

-

21,010

750

41,670

Calendar year 1898: Max 5,850 Min 220 ....... _,__

Mar.

760

760

760

760

*760

760

760

760

950

950

950

850 

760

760

760

760

1,050

950

850

850

1,050

1,160

2,320

15,400

17.600

12,200

7,620

4,190

4,000

3,630

2,780

86,470

2,790

171,500

Me<

Apr.

2,460

2,320

2,050

2,030

2,320

2,460

4,270

4,180

5,400

5,400

4,780

5,190 

5,190

5,630

6,080

7.550

6,320

*5,400

5,400

5,190

5,300

5,190

5,300

4,570

3,620

2,940

2,940

2,780

2,780

2,170

126,990

4,233

251,880

May

1,900

2,030

1.830

1,830

1,900

2,030

2,170

2,170

2,460

3,360

5,190

7.090 

*7,090

6,320

4,980

4,180

3,980

3,980

3,980

3,800

3,360

3,800

4,780

4,980

4,570

3,980

3,360

3,280

3,780

4,370

3,620

116,150

3,730

229,350

June

3,980

*3,980

3,620

3,620

4,180

5,850

7,350

7,620

8,410

9,070

8,940

8,670 

8, 150

7,350

7,090

7,090

6,830

6,570

6,320

6,570

5,850

4,780

4,570

4,180

4,570

4,180

*3,100

2,620

2,940

2,940

170,990

5,700

339,173

July

*5.110

2,940

2,940

2,940

2,780

2,320

2,170

2,030

1,830

1,770

1,770

1,770 

1,770

1,520

1,400

1,400

1,290

1,400

1,220

1,220

1,220

1,220

1,220

1,060

1,060

1,170

1,220

955

955

955

51,580

1,664

102 , 300

Aug.

745

690

690

690

690

445

445

445

540

540

640

640 

540

540

445

350

350

280

280

280

280

280

280

280

280

280

280

280

250

250

250

13,255

428

26,290

Sept.

210

210

210

210

210

210

210

*210

210

210

210

180

150

150

150

150

150

150

120

150

150

150

150

120

120

120

120

120

120

120

4,950

 165

9,820

in 1,180 Ac-ft 856,000

Water year 1898-99: Max 17,600 Min 120 Mean 1,770 Ac-ft 1,280,000

* Discharge measurement made on this day.

Discharge, In cubic feet per second, water year October 1899 to September 1900

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

120

120

120

120

120

120

120

100

120

120

120

120

150

150

180

210

210

210

250

250

250

290

670 

670

450

450

390

390

340

340

290

7,560

244

15,000

Nov.

260

260

220

220

220

220

170

170

170

150

955

745

1,060

1.180

955

745

1,060

955

745

590

590

590

745 

640

640

745

540

540

445

445

16,950

565

35,620

Dec.

445

445

445

445

445

445

250

250

250

250

250

220

TIT

330

640

4.780

3,100

2,170

1,640

1,400

1,280

1,170

955 

745

745

690

690

690

690

690

4,570

31,560

1,018

62,595

Jan.

2,940

2,780

14,300

17 . 600

4,780

3,110

2,470

2,040

1,900

1,640

1,510

1,510

1,390

1,390

1,390

1,390

1,390

1,390

1,390

1,390

1,510

1,270

1,270 

1,160

950

1,050

950

1,050

1,050

1,050

950

79,960

2,580

158,600

Feb.

1.050

*950

1,050

1,050

850

850

760

760

760

760

760

760

760

760

760

760

760

350" 670

1,050

1,050

1,050

850 

670

670

670

670

670

23,130

826

45,880

Calendar year 1899 : Max 17,600 Min 100

Mar.

850

950

950

1,270

5,110

1,770

1,640

1,510

1,510

1,510

1,770

1,770

1,900

2,320

2,470

2,670

2,470

2,470

2,470

2,470

2,470

2,470

2,470 

2,320

2,180

2, 180

2, 180

2,180

2,040

2,180

2,320

62,840

2,025

124,500

Apr.

2,470

2,780

*2,620

2,170

1,900

1,900

1,900

2,620

2,030

1,760

1,900

1,760

1,760

1,760

1,760

1,760

1,640

1.520

1,640

2,320

2,780

2,620

2,320 

2,170

2,170

2,170

2,170

1,900

1,760

1,760

61,790

2,060

122,578

May

2,170

2,170

2,170

2,170

2,470

3,110

3,110

3,440

3,620

4,980

5,400

5,400

4,180

3,440

*3,280

4,980

7,620

7,620

8,940

8,670

8,150

8,940

9.750 

8,410

7,350

7,350

8,150

7,880

7,090

7,620

7,880

177,490

5,725

352,016

June

7,350

7,880

7,350

7,090

6,830

6,570'

8,150

8,410

8,670

8,150

,830

,080

,400

,620

,980

,570

,800

* ,180

,370

,180

,850

,620

,190 

,570

,570

,180

,800

,990

,990

,620

171,840

5,728

340,840

July

3.280

2,780

2,620

1,900

1,770

1,640

1,640

1,640

1,770

1,770

1,510

1,390

1,390

1,390

1,270

1,160

1,270

1,160

1,050

1,050

950

950

950 

950

670

670

590

590

520

520

520

41,330

1,333

81,980

Aug.

630

630

630

630

630

630

530

430

*430

430

430

360

360

360

360

360

360

360

300

300

300

300

300 

300

300

240

240

240

240

240

240

12,090

390

23,980

Sept.

*240

240

240

240

200

200

240

240

240

240

200

200

200

200

200

200

200

200

200

180

180

180

180 

180

180

180

180

*180

180

200

6,120

204

12,139

Mean 1,824 Ac-ft 1,320,000

Water yearl899^.900 : Max 17,600 Min 100 Mean 1,898 Ac-ft i;370,000

* Discharge measurement made on this day.
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS 

San Joaquin River at Herndon, Calif --Continued 

Discharge, In cubic feet per second, water year October 1900 to September 1901

607

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

51

Total

Mean

Ac-ft

Oct.

210

210

180

ISO

540

760

520

590

590

590

590

590

390

390

390

540

590

540

590

590

590

760

590

520

520

590

390

340

540

290

540

12,440

401

24,670

Nov.

360

360

300

500

500

240

240

240

240

240

560

560

360

300

500

300

360

1,950

1,470

1,470

2,910

20.780

6,570

5', 980

2,470

2,170

1,760

1,520

1,520

1,290

55,020

1,834

109,130

Dec.

1.160

1,160

1,160

1,050

1,050

1,050

1,050

1,050

1,050

1,050

1,050

950

850

850

850

760

760

760

760

760

760

760

760

760

670

590

670

670

590

*590

590

26,590

858

52,740

Jan.

810

810

750

750

5,980

17,870

21,570

8,940

5,620

4,170

5,450

2,950

2,790

2,650

2,540

2,060

1,930

1,930

1,930

1,930

1,670

2,950

2,200

1,800

1,550

1,800

1,550

1,550

1,550

*1,550

1,550

108,690

5,506

215,576

Feb.

1,550

1,550

1,550

1,550

1,550

6,080

5,280

5,110

5,450

2,790

2,540

1,930

1,800

1,930

1,950

1,950

2,200

10,000

8,140

12,940

9,200

11,060

8,670

11,330

8,410

7,090

6,320

5,850

-

139,530

4,983

276, 800

Mar.

6,520

*6,850

6,570

6,570

6,080

5,410

5,620

5,620

5,850

3,990

5,800

3,800

3,800

3,450

5,450

5,450

5,450

5,450

5,280

5,280

5,450

5,450

5,620

5,450

5,450

5,620

5,620

3,280

2,950

2.480

2,480

129,920

4,191

257,695

Apr.

2,340

2,200

*2,630

3,110

2,630

2,480

2,480

2,200

2,060

1.950

1,950

1,950

1,950

1,930

3,990

5,800

4,170

4,170

5,190

6,520

6,850

6,570

7,350

7,880

8,150

8,410

8,410

8,150

6,830

^.' j'AQP140,400

4,680

278,479

May

9,240

8,140

.7,100

7,620

6,840

7,620

7,620

10,400

ll,50d

12,800

15,500

16,400

17,600

17,200

16 , 800

18,000

19,200

20,400

18,000

14 , 500

12,200

11, 900

10,400

10, 100

9,800

9,520

8,680

7,880

7,100

7,260

8,140

364,860

11,770

723,900

June

8,940

15,210

15,590

15,590

15,590

15,390

15, 600

14,570

14,290

11,860

10,530

10,000

9,200

8,150

7.880

9,200

10,530

11,860

12,940

12,400

13, 210

14,570

14,290

12,130

10,530

8,670

8,150

10,000

11,350

14,290

359,950

11,998

713,950

July

14,600

14.950

11,600

9,240

8,680

7,620

8,140

7,100

7,560

7,100

7,100

6,840

6,590

6,100

5,870

5,870

5,420

5,200

5,420

4,780

4,780

4,780

5,420

5,870

4,990

4,580

4,190

4,190

4,190

5,650

*4,000

206,200

6,652

409,000

Aug.

3,800

4,570

4,980

4,180

5,850

4,780

4,570

3,990

5,450

3,450

2,630

2,200

1,950

1,950

1,800

1,800

1,550

1,800

2,200

1,930

1,800

1,310

1,200

1,200

1,000

810

660

600

600

5SO" 500

75,570

2,575

145,910

Sept.

450

590

590

590

590

390

340

340

340

340

340

340

340

290

290

290

290

340

340

340

290

290

290

290

290

290

290

290

290

10,020

334

19,870

Calendar year 1900: Max 20,780 Mln 180 Mean 2,000 Ac-ft 1,450,000

Water yearl90Q-1901 : Max 21,370 Mln 180 Mean 4,460 Ac-ft 3,250,000

Discharge measurement made on this day.

Discharge, In cubic feet per second, October to December 1901

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

51

Total

Mean

Ac-ft

Oct.

290

520

450

450

450

450

590 

540

540

540

540

540

540

590

390

*390

590

540

540

340

290

290

590

540

540

540

540

5.110

1,640

1,160

1,160

17,020

549

33,760

Nov.

950

950

850

850

850

670

670 

670

670

760

850

1,050

1,050

1,160

1,270

1,270

1,160

1,160

1,160

1,050

1,050

850

760

760

760

760

950

950

1,050

1,900

28,860

962

57,240

Dec.

2,040

1,770

1,510

1,510

1,270

1,900

2.470 

1,900

1,510

1,510

1,270

1,270

1,270

1,050

1,050

760

760

760

760

670

670

670

520

520

450

450

450

450

450

450

450

32,540

1,050

64,540

Jan. Feb.

Calendar year 1901: Max 21,570 Mln 290

Mar. Apr. May June July Aug. Sept.

Mean 4,420 Ac-ft 3,200,000

Water year 1901-2: Max - Mln - Mean - Ac-ft -

Discharge measurement made on this day.
608 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Stanislaus River at Oakdale, Calif. 

Location. Lat 37°46'38", long 120°51'07", in Rancheria del Rio Estanislao Grant, 100 ft

downstream from Southern Pacific Railroad Bridge and 0.8 mile northwest of Oakdale,

Stanislaus County. 

Drainage area. 1,025 sq mi.

Records available.--June 1895 to February 1901 (discontinued). 

Gage.--Staff gage. Altitude of gage is 95 ft (from topographic map). Prior to July 30,

1898, staff gage about 1,100 ft upstream at different datum. 

Average discharge. 5 years (1895-1900), 1,316 cfs (952,700 acre-ft per year). 

Extremes. 1895^1900: Maximum discharge observed, 14,500 cfs Mar. 25, 1899 (gage height,

17 ft), from rating curve extended above 4,500 cfs; minimum observed, 27 cfs Aug. 16,

1898. 

Remarks.--Stanislaus and South San Joaquin Water Company's canal diverts approximately

15 miles above station.

Revisions. Revised figures of discharge, in cubic feet per second, for the water years 

 1900-1901, superseding those published in MSP 299, are given herewith:

Date

1896 

Oct. 28 

29 

50 

31 

Nov. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

Dec. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30

Discharge

320 

218 

184 

184 

218 

218 

218 

218 

218 

184 

184 

218 

962 

632 

370 

286 

252 

252 

252 

252 

252 

286 

320 

320 

420 

520 

470 

4,232 

2,656 

1,126 

818 

694 

520 

470 

470 

470 

470 

470 

420 

420 

420 

370 

370 

370 

370 

370 

1,566 

1,126 

756 

756 

632 

520 

470 

470 

420 

420 

420 

370 

370 

420 

632 

694 

632 

570

Date

1896-Con. 

Dec. 31

1897 

June 5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

July 1 

2 

3 

4 5' 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Aug. 1 

2 

3 

4

Discharge

1,382

3,240 

3,240 

3,360 

3,847 

3,974 

3,240 

2,768 

2,422 

,536 

,768 

,194 

, 888 

,516 

,348 

,348 

,348 

,516 

,432 

,432 

,432 

,432 

,432 

,264 

,180 

,264 

,348 

,432 

,516 

,600 

,516 

,432 

,432 

,348 

,264 

,264 

,100 

940 

,020 

,020 

1,020 

1,020 

1,020 

1,020 

860 

780 

640 

648 

648 

582 

582 

516 

516 

410 

410 

410 

410 

410 

370 

370 

370 

370

Date

1897 -Con. 

Aug. 5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31

1899 

Oct. 13 

14 

15 

16 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

Nov. 1 

2 

3 

4 

6 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22

Month

Oct 

Nov 

Dec 

C<

June

Julj 

Augi 

W< 

C

Oct 

Nov 

Dec 

C

w<

Oct 

Nov 

Dee 

C

ilendar ye 

» 1897

iSt. .........................

iter year 

jlendar ye

3ber 1899

1896-97............

ar 1897 ............

ilendar ye 

iter year

Dber 1900

1899-1900.. ........

ilendar year 1900. ...........

Discharge

330 

330 

330 

290 

290 

290 

290 

250 

250 

230 

230 

210 

210 

210 

210 

230 

250 

250 

230 

210 

210 

210 

210 

210 

210 

210 

210

130 

315 

315 

220 

130 

220 

850 

1,120 

970 

690 

550 

425 

315 

220 

315 

220 

315 

220 

220 

130 

130 

425 

1,280 

2,025 

1,825 

1,635 

1,280 

1,280 

2,235 

1,825 

1,825 

1,635 

1,450 

1,120 

1,825

Maximum

320 

4,232 

1,566 

13,050

3,974 

1,600 

370 

10, 580 

10,580

1,120 

2,235 

4,887 

13,940 

7,050

2,640 

6,037 

1,540 

7,050

Date

1899-Con. 

Nov. 23 

24 

25 

26 

27 

28 

29 

30 

Dee. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31

1900 

Oct. 3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 22' 

23 

24 

25

Minimum

184 

218 

370 

145

1,180 

410 

210 

140 

140

90 

90 

485 

50 

30

70 

270 

540 

30

Discharge

1,450 

1,120 

830 

970 

970 

830 

760 

830 

690 

690 

760 

690 

550 

620 

550 

550 

485 

550 

550 

830 

2,670 

970 

1,825 

4,887 

3,875 

3,380 

2,340 

1,830 

1,635 

1,365 

1,200 

1,120 

1,120 

970 

970 

1,120 

970 

1,280 

1,635

150 

270 

420 

360 

360 

360 

270 

230 

190 

190 

150 

150 

150 

190 

150 

150 

310 

2,640 

1,180 

890 

480 

480 

420

Mean

231 

601 

568 

1,914

2,290 

929 

259

1,921 

1,875

279 

1,025 

1,377 

1,285 

1,220

398

1,158 

799 

1,192

Date

1900-Con. 

Oct. 26 

27 

28 

29 

30 

31 

Nov. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

23 

24 

25 

26 

27 

28 

29 

30 

Dee. 1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31

Runoff In 

acre-feet

14,210 

35,780 

34,940 

1,390,000

136,300 

57,110 

15,930 

1,390,000 

1,360,000

17,170 

60,990 

84,650 

930,000 

883 , 000

24,500 

68,880 

49,110 

863,000

Discharge

420 

360 

310 

310 

360 

270 

270 

270 

270 

310 

270 

360 

270 

270 

310 

310 

310 

310 

360 

360 

610 

890 

1,440 

820 

960 

1,260 

4,250 

1,960 

1,350 

,260 

,260 

,180 

,030 

,030 

,030 

,180 

,100 

960 

820 

820 

820 

820 

820 

680 

610 

610 

610 

610 

680 

610 

890 

820 

610 

540 

750 

1,540 

1,180 

890 

750 

820 

750 

680 

610 

610 

540
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS 609

Bear River at Pardoe Camp, Calif.

Location. Lat 38°32', long 120°15', in sec. 18, T. 8 N., R. 16 E., at Pardoe Camp,

2 miles downstream from Bear River Reservoir of Pacific Gas & Electric Co. 

Drainage area. 33.0 sq mi.

Records available. July 1927 to September 1951 (discontinued).

Gage. Water-stage recorder. Altitude of gage is 5,650 ft (from topographic map). 

Average discharge . 24 years, 107 cfs (77,460 acre-ft per year).

Extremes. 1927-?!; Maximum discharge, about 7,100 cfs Nov. 20, 1950 (gage height, 

 T2761T ft, from floodmarks) , from rating curve extended above 1,400 cfs; no flow

Sept. 8-30, Oct. 1-4, 7-29, 1928.

Revisions. The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede figures published in the water-supply

papers indicated.

WSP

671 

691 

811 

831

Water 

year

1928 

1929 

1936 

1937

Date

Mar. 25, 

June 15, 

June 7, 

May 13 ,

1928 

1929 

1936 

1937

Discharge 

(cfs)

4,090 

2,600 

1,950 

1,580

Gage height 

(feet)

9.75 

7.65 

6.72 

6.22

Remarks. Regulation since 1900 by Bear River Reservoir (capacity, 6,422 acre-ft). Water

usually is released during late summer and early winter. No diversion. 

Revisions (water years).--WSP 861: Drainage area. Revised figures of discharge, in cubic 

 feet per second, for high-water period in the water year 1928, superseding those published in WSP 671, are given herewith:

1928 1928-Con. 

Mar. 25......... 3,550 Mar. 27......... 1,140

26......... 2,530 28......... 482

Month

Water year 1927-28... 

Calendar- year 1928...

Maximum

3,550 

3,550

Minimum

50

0 

0

Mean

345

114 

103

Runoff in 

acre-feet

21,200

83,000 

75,100

South Pork Mokelumne River near Railroad Plat, Calif.

Location.--Lat 38°19'55", long 120°25'20", in sec. 34, T. 6 N. , R. 14 E., at Laidet ranch,

5 miles upstream from Licking Pork and 5 miles east of Railroad Plat. 

Drainage area. 36.9 sq mi.

Records available . October 1911 to September 1934 (discontinued).

Gage. Water-stage recorder and concrete control. Altitude of gage is 2,680 ft (from 

Topographic map). Prior to Apr. 1, 1928, staff gage 700 ft upstream at different

datum. Apr. 1 to Aug. 16, 1928, staff gage at present site and datum. 

Average discharge . 23 years, 43.9 cfs (31,780 acre-ft per year).

Extremes. 1911-34: Maximum discharge, 3,330 cfs Jan. 25, 1914 (gage height, 6.9 ft, 

 site and datum then in use); minimum, 0.2 cfs Aug. 11, 19, 20, 24-29, Sept. 1-8, 1931. 

Remarks. Small diversions above station totalling less than 4 cfs. 

Revisions. Revised figures of discharge, in cubic feet per second, for the water years

1915, 1917-18, superseding those published in WSP 411, 461, and 481, are given

herewith:

Date Discharge

1915 

Feb. 4 180 

5 120 

6 90

Date

1915-Con. 

Feb. 7 

8 

9

Discharge

90 

90

200

Month

February 1915. ........ 

Water year 1914-15.. 

Calendar year 1915..

Dec 

C 

W 

Mar 

W 

C 

Dec 

C

Jan 

Jun 

W

Oct 

Nov 

Dec 

C 

W

ember 191 

alendar y 

ater year

ater year 

alendar y 

ember 191 

alendar y

uary 1920

ater year 

ober 1920

ember

sar 1916. . 

1916-17. .

1917-18. . 

ear 1918..

sar 1919. .

1919-20. .

alendar year 1920.. 

ater year 1920-21..

Date

1916 

Dec. 7 

8 

9

Discharge

35 

25 

20

Date

1916-Con. 

Dec. 10 

11 

12

Discharge Date Discharge

1918 

17 Mar. 22 148 

15 

14

Maximum

382 

628 

628

190 

1,010 

880

581 

581 

581

318

380

380 

912

Minimum

76 

6.6 

7.2

12 

3.9 

6.5

25 

2.6 

2.6

3.7

2.4

Mean

169 

76.6 

77.9

30.4 

92.4 

70.7

157 

37.6 

37.9

t20 

31.2

 fio

t20 

32.7

t7 

t25 

t40 

35.9 

68.5

Runoff In 

acre-feet

9,410 

55,400 

56,400

1,870 

67,100 

51,200

9,660 

27,200 

27,500

1,230 

22,500

615 

1,190 

23,700

430 

1,490 

2,460 

26,000 

49,500

t Only monthly figures revised; 

available.

revised dally figures not
610 REVISIONS OP RECORDS FOR DISCONTINUED STATIONS

Licking Pork Mokelumne River near Railroad Flat, Calif.

Location. Lat 38°01 T , long 120°25', in E^SEi sec. 26, T. 6 N., R. 14 E., 100 ft upstream

from Big Canyon Creek, 6 miles upstream from mouth, and 6.6 miles (revised) east of

Railroad Plat.

Drainage area. 24 sq mi, approximately.

Records available. October 1911 to December 1917 (discontinued). 

Gage. Staff gage. Altitude of gage is 3,100 ft (from topographic map). Prior to June 4,

1915, at site 160 ft upstream at different datum. 

Extremes. 1911-17: Maximum gage height observed, 2.4 ft (site and datum then in use)

Jan. 25, 1914 (discharge not determined); minimum discharge observed, 0.3 cfs in July

and August 1913.

Revisions.--The maximum discharge observed for the water year 1916 has been revised

to 47 cfs Mar. 16, 24, 1916 (gage height, 3.2 ft), superseding figure published in

WSP 441.

Remarks. Diversion for irrigation above station. 

Revisions. Revised figures of discharge, in cubic feet per second, for the water year

1916 superseding those published in WSP 441, are given herewith:

Date

1916 

Apr. 1 

2 

3 

4 

5 

6

Discharge

33 

33 

33 

33 

33 

34

Date

1916-Con. 

Apr. 7 

8 

9 

10 

11 

12

Discharge

34 

35 

36 

37 

38 

36

Date

1916-Con. 

Apr. 13 

14 

15 

16 

17 

18

Month

April 1916........................

Discharge

34 

32 

30 

28 

26

24

Maximum

38

Date

1916-Con. 

Apr. 19 

20 

21 

22 

23 

24

Discharge

20 

19 

19 

18 

18

Date

1916-Con. 

Apr. 25 

26 

27 

28 

29 

30

Minimum

15

Mean

26.8

Runoff In 

acre-feet

1,600

Discharge

18 

26 

17 

16 

16 

15

Sutter Creek at Sutter Creek, Calif.

Location.--Lat 38°23'45", long 120°48'30" in NW^ sec. 7, T. 6 N., R. 11 E., three-eighths

of a mile west of town of Sutter Creek. 

Drainage area. 53.2 sq mi. 

Records available.--February 1922 to December 1935 (discontinued). Monthly discharge only

for some periods, published in WSP 1315-B.

Gage. Staff gage. Altitude of gage is 1,100 ft (from topographic map). 

Average discharge. 13 years, 27.9 cfs. 

Extremes. 1922r3'5: Maximum discharge, about 3,100 cfs Dec. 13, 1922, Feb. 6, 1925 (gage

height, 7.5 ft, from floodmarks); practically no flow except .for town waste, during

summer of 1924.

Revisions. The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede figures published in the water-supply

papers indicated:

WSP

551 

651 

671 

706

Water 

year

1922 

1927 

1928 

1930

Date

Feb . 9 , 

Apr. 3, 

Mar. 25, 

Mar. 5,

1922 

1927 

1928 

1930

Discharge 

(cfs)

1,480 

1,720 

2,260 

970

Gage height 

(feet)

5.0 

5.41 

6.27 

4.00

Remarks. Flow parody regulated by small dam upstream from town of Sutter Creek and by 

release of mine water. Small diversions for irrigation above station.

Revisions. Revised figures of discharge in cubic feet per second for the water years 

1922-23 and 1927-28, superseding those published in WSP 551, 571, 651, and 671, are 

given herewith:

Date

1922 

Feb. 9 

20 

Dec. 12 

13

1925 

Feb. 6

Discharge

1,040 

1,320 

920 

2,200

1,540

Date

1925-Con. 

Feb. 7 

8

1927 

Apr. 2 

3 

4

Month

February 1922. ....................

Water year 192

Water year 192 

Calendar year

April 1927.....

Water year 192 

Calendar year

Water year 192 

Calendar year

2-23.......... ....

4-25. .............

6-27.. ............

1927.... ..........

7-28..............

1928..............

Discharge

740 

680

625 

1,320 

540

Maximum

1,630 

2,200 

2,200

1,540 

1,540 

1,540

1,320 

1,320 

1,320

1,920 

1,920 

1,920

Date

1928 

Mar. 24 

25 

26 

27 

28

Minimum

27 

13 

1.5

30 

.9 

.9

33 .5 ' 

.5

13

1.3 

1.3

Discharge

488 

1,920 

880 

1,440 

640

Mean

t263 

289 

76.2

258 

t50.7 

47.9

166 

49.1 

47.6

215

37.7 

35.5

Runoff In 

acre-feet

14,600 

1 7 , 800 

55,100

14,300 

36,700 

34,700

 9,910 

35,600 

34,500

13,2OO 

27,300 

25,700

t Partly estimated.
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS 611

Pit River at Pall River Mills, Calif.

Location. Lat 41°00' , long 121°26' , in NE£ sec. 6, T. 36 N., R. 5 E., on right bank

0.8 mile downstream from Fall River and town of Pall River Mills. 

Drainage area. 4,150 sq mi, approximately, excluding Goose Lake basin. 

Records available. March 1921 to September 1951 (discontinued). 

Gage.--Water-stage recorder. Altitude of gage is 3,23ff ft (from topographic map). Prior

to December 1922, at site 0.7 mile upstream at different datum. 

Average discharge. 28 years (1923-51), 461 cfs (333,800 a ere-ft per year), excluding

flow of Fall River.

Extremes.--1921-51: Maximum discharge, 28,600 cfs Dec. 12, 1937 (gage height, 11.8 ft), 

 from rating curve extended above 9,000 cfs on basis of velocity-area and A*^3 studies;

minimum, 12 cfs Aug. 5, 1926, Oct. 23, 1936.

Revisions. The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede figures published in the water-supply

papers indicated.

WSP

1928 

1935 

1936

Water 

year

671 

791 

811

Date

Mar. 

Apr. 

Jan.

28, 1928 

9, 1935 

16, 1936

Discharge 

(cfs)

13,000 

9,500 

10,400

Gage height 

(feet)

7.89 

6.85 

7.12

Remarks. Flow regulated by many small reservoirs (total usable capacity, about 185,000 

 acre-ft, revised, in 1950). Beginning Oct. 23, 1922, Fall River was diverted through

Pit No. 1 powerhouse and returned to Pit River below station. Many diversions for

irrigation above station. River receives return flow from McArthur, Knoch, and other

diversions above station. 

Revisions.--Revised figures of discharge, in cubic feet per second, for high-water period

in the water year 1928, superseding those published in WSP 671, are given herewith:

Month

Water year 1927-28. . . . 

Calendar year 1928....

Maximum

11,300 

11,300

Minimum

55 

55

Mean

454

417

Runoff in 

acre-feet

329,000 

303,000

Stony Creek above Stony Gorge Reservoir, near Elk Creek, Calif.

Location.--Lat 39°30'05", long 122°30'30" (revised), in NE^ sec. 15, T. 19 N., R. 6 W.,

6 miles downstream from Little Stony Creek and 6 miles upstream from Stony Gorge Dam. 

Drainage area. 280 sq mi (revised); 298 sq mi for 1919-28 site; 301 sq mi for 1928-34

site.

Records available. May 1919 to September 1941 (discontinued). 

Gage.--Water-stage recorder. Altitude of gage is 950 ft (from topographic map). Prior

to Nov. 15, 1928, staff gage 4.5 miles downstream at different datum. Nov. 15, 1928,

to Sept. 30, 1934, staff gage 6 miles downstream at different datum. 

Average discharge . 22 years, 247 cfs (178,800 acre-ft per year). 

Extremes . 1919-31; Maximum discharge, 28,000 cfs (revised) Dec. 10, 1937 (gage height,

13.1 ft), from rating curve extended above 2,100 cfs on basis of studies of change in

contents in Stony Gorge Reservoir; no flow July to October 1924.

Revisions. The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede figures published in the water-supply

papers indicated.

WSP

811 

831 

861

Water 

year

1936 

1937 

1938

Date

Feb. 21, 

Feb. 4, 

Dec. 10,

1936 

1937 

1937

Discharge 

(cfs)

9,000 

6,090 

28,000

Gage height 

(feet)

8.60 

7.5 

13.1

Remarks . Flow partially regulated 'by East Park reservoir (usable capacity, 50,500 acreft, with 1^ ft of flashboards). Records represent inflow into Stony Gorge Reservoir 

(usable capacity, CO,000 acre-ft). Water released for irrigation in the Orland 

Project. Flow diverted from Stony Creek above station during winter months through 

East Park Feeder canal for storage in East Park Reservoir.

Revisions.--Revised figures of discharge, in cubic feet per second, for some days in the 

water year 1938, superseding those published in WSP 861, are given herewith:

Month

December 1937 ........ 

Calendar year 1937 . 

Water year 1937-38.

Cfs -days

43,828 

111,098 

235,441

Maximum

14,600 

14,600 

14,600

Minimum

101 

6 

12

Mean

1,414 

304 

645

Runoff in 

acre-feet

86,930 

220,400 

466,900

Revised peak discharge. 1937-38: Dec. 1O (11:30 p.m.) 28,000 cfs; 

Feb. 9 (5 p.m.) 1O,4OO efs; Feb. 13 (4 p.m.) 8,55O cfs._________ 

t Average per day.

510529 O - 59 - 40
612 REVISIONS OF RECORDS FOR DISCONTINTJED STATIONS

Grizzly Creek near Storrie , Calif.

Location.--Lat 39°52'30", long 121°13'35", in SW-£ sec. 5, T. 23 N. , R. 7 E. , 2,000 ft 

upstream from outlet of tunnel from Bucks Creek and 6 miles southeast of Storrie.

Drainage area.--5.3 sq mi, approximately.

Records available.--December 1929 to September 1932, October 1933 to September 1944 

(discontinued).

Gage. Water-stage recorder and, after November 1940, concrete control. Altitude of gage 

is 4,900 ft (from topographic map).

Average discharge. 14 years, 27.6 cfs (19,980 acre-ft per year).

Extremes.--1929-32 , 1933-44; Maximum discharge (revised), 1,570 cfs Dec. 10, 1937 (gage 

height, 7.20 ft\ from rating curve extended above 150 cfs by siope-conveyance studies; 

minimum, 0.1 cfs Sept. 7-14, 1932.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

706

721

766

791

811

831

931

961

981

1011

Water 

year

1930

1931

1934

1935

1936

1937

1941

1942

1943

1944

Date

Dec. 12,

Mar. 18,

Mar. 29,

Apr. 7,

Feb. 21,

June 16,

Feb. 10,

Dec. 2,

Jan. 21,

May 7 or

1929

1931

1934

1935

1936

1937

1941

1941

1943

8, 1944

Discharge 

(cfs)

*652

286

373

331

655

381

685

905

1,300

196

Gage height 

(feet)

4.85

3.49

3.85

3.68

4.86

3.88

5.80

6.25

7.00

4.38

Not previously published. 

Remarks. No regulation or diversion.

Revisions.--Revised figures of discharge, in cubic feet per second, for the water years 

1936, 1941-43, superseding those published in WSP 811, 931, 961, and 981, are given 

herewith:

Date

1936

Jan. 10

11

14

15

16

Feb. 21

22

1940

Dec. 18

Discharge

220

300

212

404

182

358

220

 170

Date

1940-Con.

Dec. 21

22

23

27

1941

Feb. 10

11

12

28

Discharge

329

158

272

281

384

323

126

200

Date

1941-Con.

Dec . 2

3

14

15

16

1942

Jan. 24

25

26

Discharge

483

251

138

555

426

128

209

209

Date

1942-Con.

Jan. 27

1943

Jan. 21

22

Discharge

380

622

138

Month

Water year 1935-36. .......... 

Calendar year 1936. ..........

Calendar year 194O. ..........

Calendar year 1941 ...........

Calendar year 1942 ...........

Calendar year 1943 ...........

Cf s-days

12.U92.5 

11,945.5

14,185.9

15,590

13,631.6

10,535.8

Max imum

404 

404

603

555

555

380

390

622

62E

Minimum

6.5

.4 

.3

1.9

.4

16

.7

11

.7

14

.7

8

.4

Mean

68.9

63.3

33.0 

32.6

64.1

38.8 

77.4

40.1

91.3

42.7

59.0

40.7

37.3

51.4

33.3

28.9

Runoff in 

acre-feet

4,240

3,640

23,980 

23,690

3,940

28,130 

4,300

29,030

5,620

30,940

3,630

29,480

27,050

3,160

24,140

20,900
REVISIONS OP RECORDS FOR DISCONTINUED STATIONS 613

Concow Creek near Yankee Hill, Calif.

Location. Lat 39°46', long 121°32', in NEij sec. 16, T. 22 N., R. 4 E., on left bank Just 

upstream from diversion dam of Spring Valley ditch, 300 ft downstream from Lake 

Wilenor Dam and 4 miles north of Yankee Hill Post Office.

Drainage area.--14.7 sq mi.

Records available. October 1927 to September 1952 (discontinued).

Gage. Water-stage recorder and concrete control. Altitude of gage is 1,850 ft (from topographic map). Prior to 1929, at datum 1.0 ft lower.

Average discharge. 25 years, 28.5 cfs (20,630 acre-ft per year), combined flow of Concow 

Creek and Spring Valley ditch.

Extremes.--1927-52: Maximum discharge, 2,260 cfs Feb. 1, 1952 (gage height, 5.75 ft), 

from rating curve extended above 160 cfs by computations of flow over dam; no flow for 

many months in each year.

Revisions. The figures of maximum discharge for some water years have been revised, 

as shown in the following table. They supersede figures published in the water-supply 

papers indicated.

WSP

706 

736 

751 

766 

791 

811 

861

Water 

year

1930 

1932 

1933 

1934 

1935 

1936 

1938

Date

Mar. 5 1930 

Apr. 24 1932 

Mar. 28 1933 

Feb. 7 1934 

Apr. 7 1935 

Feb. 21 1936 

Feb. 9 1938

Discharge 

(cfs)

278 

234 

105 

148 

938 

1,600 

1,190

Gage height 

(feet)

1.32 

1.23 

.83 

.96 

2.55 

3.50 

2.87

Remarks. Flow regulated by Lake Wilenor (capacity,8,210 acre-ft, with flashboards) starting in 1925. Flow diverted above station into Spring Valley ditch.

Revisions (water years). WSP 931: 1928(M) , 1940. Revised figures of discharge, in 

cubic feet per second, for the water years 1930, 1932, 1934, superseding those published in WSP 706, 736, and 766, are given herewith:

Date

1929

Dec. 15

16

17

18

19

20

21

22

23

1930

Jan. 5

6

7

8

9

10

11

12

13

14

15

16

17

18

Discharge

65

195

198

198

198

192

19Z

192

64

19

1Z7

195

64

49

178

67

.3

.2

.2

24

195

195

195

Date

1930-Con.

Jan. 19

ZO

21

22

Z3

24

25

Mar. 4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Discharge

195

195

195

195

195

195

65

136

262

230

195

66

1.7

1.7

8

17

29

37

47

43

133

51

1.7

1.7

2.0

Date

L930-Con.

Mar. 22

23

24

25

30

31

1932

Jan. 2

3

4

5

6

7

8

9

10

15

16

17

18

19

20

21

22

Discharge

2.0

3.0

5.0

5.5

15

16

47

51

47

41

32

34

32

32

30

24

45

45

45

45

45

45

45

Date

193Z-Con.

Jan. 23

24

25

31

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Discharge

45

45

20

54

108

102

102

102

102

102

102

102

70

49

17

is'

30

Date

1932-Con.

Feb. 22

23

24

Apr. 24

25

26

27

30

1934

Feb. 7

8

9

10

11

19

20

21

22

23

24

25

26

27

28

Discharge

30

30

18

174

51

16

21

17

63

106

56

39

21

74

88

59

79

100

76

50

88

86

63

Month

Calendar year 1934 ............

Maximum

195

262

262

106

Minimum

0

0

Mean

15.5

4.97

Runoff in 

acre-feet

11,240

3.590
614 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS

Middle Yuba River near North San Juan, Calif 

(Formerly published as Middle Fork of Yuba River near North San Juan, Calif.)

Location (revised). Lat 39°23'15", long 121°05'35", In NW£ sec. 33, T. 18 N. , R. 8 E. , 

0.2 mile upstream from Moonshine Creek, 1 mile downstream from Oregon Creek, and 1 mile 

north of North San Juan.

Drainage area. 198 sq ml (revised).

Records available. July to October 1900, October 1910 to February 1941 (discontinued).

Gage. Water-stage recorder. Datum of gage Is 1,400.62 ft above mean sea level, datum of 

1929. Prior to Oct. 8, 1930, staff gage at site a quarter of a mile upstream at different datum.

Average discharge.--30 years (1911-41), 428 cfs (309,900 acre-ft per year).

Extremes.--1910-41: Maximum discharge, about 26,000 cfs Mar. 25, 1928 (gage height,

15.3 ft, site and datum then In use, from floodmarks), from rating curve extended above 

1,200 cfs; minimum, 14 cfs Aug. 24-28, 1931.

Remarks.--Milton-Bowman tunnel (see p. 451) above station has diverted water to Bowman 

Lake since 1928. Some small diversions above station.

Revisions. Revised figures of monthly discharge, In cubic feet per second, for September 

1900 and March 1917, superseding those published In WSP 298 and 461 respectively, are 

given herewith:

Month

March 1917 .......................

Water year 1916-17, ............

Calendar year 1917 .............

Maximum

6,610

Minimum

46

43

Mean

530

534

508

Runoff In 

acre-feet

32,600

387,000

368,000

Yuba River at Smartvllle, Calif.

Location.--Lat 39°13'25", long 121°17'33", In SW£ sec. 22., T. 16 N. , R. 6 E. , at Narrows, 

1 mile downstream from Deer Creek and 1 mile north of Smartvllle.

Drainage area.--1,195 sq ml (revised); 1,204 sq mi (revised) at site used In 1900.

Records available. July to September 1900, June 1903 to September 1941 (discontinued). 

Published as "at Parks Bar Bridge, near Smartsville" in 1900, and as "at Smartsville" 

1903-26.

Gage.--Water stage recorder. Datum of gage Is 264.17 ft above mean sea level, adjustment 

of 1912. June 28, 1900, to Oct. 14, 1900, staff gage at site 4 miles downstream at 

different datum. June 2, 1903, to July 31, 1906, staff gage at described site at 

datum 15.2 ft higher than described datum. Aug. 1, 1906, to Oct. 10, 1928, staff gage 

and Oct. 11, 1928, to Aug. 11, 1930, water-stage recorder, at described site at datum 

5.2 ft higher than described datum.

Average discharge.--38 years (1903-41), 2,943 cfs.

Extremes.--1903-41: Maximum discharge, about 120,000 cfs Mar. 26, 1928 (gage height, 

31.2 ft, present datum, from floodmarks), from rating curve extended above 6,500 cfs 

on basis of slope-area determination of peak flow; maximum gage height, 29.2 ft, 

datum then in use, or 34.4 ft, present datum, Mar. 19, 1907; minimum discharge, 

6.5 cfs (regulated) Sept. 23, 1941.

Remarks.--Several diversions above station for power and Irrigation. Flow regulated by 

Lake Spaulding (capacity, 74,500 acre-ft), Bowman Lake (capacity, 68,200 acre-ft), 

Fordyce Lake (capacity, 42,000 acre-ft), and many smaller reservoirs.

Revisions (water years). Revised figures of discharge, in cubic feet per second, for the 

water year 1914, superseding those published In WSP 391, are given herewith:

Date

1914

Feb. 1

2

3

4

5

6

7

8

9

10

11

12

13

14

Discharge

6,300

5,730

5,010

4,650

3,550

3,550

3,400

3,250

3,100

3,100

2,960

2,960

2,960

2,820

Date

1914-Con.

Feb. 15

16

17

18

19

20

21

22

23

24

25

26

27

28

Discharge

2,680

2,540

2,540

2,270

2,140

2,010

2,140

2,960

3,550

5,730

6,900

6,900

6,500

5,910

Date

1914-Con.

Mar. 1

2

3

4

5

6

7

a

9

10

11

12

13

14

Discharge

5,190

4,830

4,490

4,010

4,330

4,650

5,010

5,190

5,370

5,010

4,830

4,650

4,490

5,190

Date

1914-Con.

Mar. 15

16

17

18

19

20

21

22

23

24

25

26

27

28

Discharge

5,370

5,370

5,730

6,500

6,100

5,730

5,370

5,370

5,190

4,650

4,490

4,170

4,010

3,850

Date

1914-Con.

Mar. 29

30

31

Apr. 1

2

3

4

5

6

7

a

9

Discharge

3,700

3,550

3,400

3,550

3,700

4,170

4,490

5,010

4,830

5,370

5,010

5,550

Month

Calendar year 1914 .............................

Maximum

33,200

Minimum

285

Mean

3,910

Runoff In 

acre-feet

2,830,000
REVISIONS OF RECORDS FOR DISCONTINUED STATIONS 615

Downie River at Downieville, Calif.

(Formerly published as North Fork of North Pork of Yuba River 

at Downieville, Calif.)

Location. Lat 39°33'45", long 120°49'25", in NE^NW^ ses. 35, T. 20 N. , R. 10 E., at 

upper highway bridge in Downieville, 500 ft upstream from dam, 0.3 mile upstream from 

mouth, and 0.5 mile downstream from Pauley Creek.

Drainage area. 71.6 sq mi (revised).

Records available. November 1910 to.September 1926 (discontinued).

Gage. Staff gage. Altitude of gage is 2,900 ft (from topographic map).

Average discharge.--16 years (1911-26) , 238 cfs (172,300 acre-ft per year).

Extremes. 1919-20: Maximum discharge observed during water year, 1,080 cfs (revised) 

May 19 (gage height, 4.20 ft); minimum observed, 10 cfs Nov. £8.

1920-21; Maximum discharge observed during water year, 2,700 cfs (revised) 

Nov. 19 (gage height, 5.50 ft); minimum observed, 31 cfs Oct. 1-5.

1921-22; Maximum discharge observed during water year, 3,470 cfs (revised) 

May 15 (gage height, 6.00 ft); minimum observed, 50 cfs (revised) several days in 

August and September.

1910-26: Maximum discharge observed, 6,760 cfs May 11, 1915 (gage height, 8.0 ft), 

from rating curve extended above 2,000 cfs; minimum observed, 10 cfs Nov. 28, 1919.

Remarks. Diversion above station for municipal use in Downieville.

Revisions. Revised figures of discharge, in cubic feet per second, for the water years 

1911, 1920-22, superseding those published in WSP 311, 511, 531, and 551, are given 

herein. Revised discharges only are given for water year 1911, but complete tables 

of daily discharge are given for the other water years.

Apr. 14, 1911........... 515

Apr. 18, 1911........... 515

Month

Calendar year 1911 ............

Maximum

2,290

2,290

Minimum

42

Mean

384

374

Runoff in 

acre -feet

51,500

278,000

271,000

Discharge, In cubic feet per second, water year October 1919 to September 192O

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

55

55

45

51

*59_

51

40

36

5G

36

36

36

36

36

36

36

36

36

35

36

36

36

36

36

36

36

36

36

36

36

36

1,220

39.4

2,420

Nov.

36

BT

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

36

10

20

36

1,038

34.6

2,060

Dec .

Be- 36

ss

55

55

55

55

55

55

55

-55 405

55

65

78

55

55

55

55

55

55

78

78

90

90

78

78

78

78

78

78

2,304

74.3

4,570

Calendar year 1919: Max -

Jan.

78

78

65

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

55

~55 105

55

55

55

55

55

55

55

55

1,811

58.4

3,590

Feb.

5590"

105

78

78

78

78

78

78

65

65

55

55

55

55

59

65

65

78

78

78

78

78

78

78

78

82

138

130

2,231

76.9

4,430

Mar.

345

290

130

138

138

138

138

138

240

167

155

138

138

345

218

195

175

130

130

138

405

290

218

218

218

195

175

144

155

144

218

6,004

194

11,910

Apr.

195

195

195

208

218

363

328

318

363

195

TfB" 175

265

265

918

623

456

340

316

316

316

316

294

273

273

294

340

403

495

526

9,957

332

19,750

May

466

413

413

388

413

423

558

689

642

466

413

423

495

478

601

724

738

918

1.010

963

656

604

526

466

413

413

413

413

413

364

540

16,655

537

33,030

June

316

294

294

308

294

294

294

294

294

233

233

233

204

204

264

233

204

181

171

165

151

145

137

137

137

137

137

137

137

137

6,399

213

12,690

July

112" 112

112

112

112

108

108

108

91

82

82

82

82

73

73

73

73

73

73

73

65

57

57

57

57

57

57

57

*57

57

57

2,448

79.0

4,860

Aug.

57

54

52

56

56

56

56

54

54

54

54

54

54

54

54

54

54

54

54

54

54

54

51

46

45

68

68

57

57

54

42

1,685

54.4

3,350

Sept.

42

42

42

42

42

42

42

42

42

42

40

39

38

38

36

36

36

36

36

36

35

35

45

54

42

40

39

36

35

34.

1,186

39.5

2,350

Mln - Mean 246 Ac-ft 178, OOO

Water year 1919-20: Max 1,010 Mln 10 Mean 145 Ac-ft 105,000

* Discharge measurement made on this day.
616 REVISIONS OF RECORDS FOR DISCONTINUED STATIONS 

Downie River at Downieville, Calif.--Continued 

Discharge, in cubic feet per second, water year October 1920 to September 1921

Day

1

2

3

4

5

6

7

8

9

10

11

12

13 

14

15

16

17 

18

19

ZQ

21

22

23

24

25

26

27

28

29

30 

31

Total

Mean

Ac-ft

Oct.

31

3T

31

31

31

78

83

68

74

83

78

116

83 

78

78

78

78 

116

98

90

90

86

83

90

90

90

90

90

90

90 

90

2,413

77.8

4,780

Nov.

90

90

90

90

90

90

78

78

78

78

108

418

533 

190

181

689

689 

1,550

2.480

805

418

403

308

256

237

820

820

533

418

368

13,076

436

25,900

Dec.

330

354

308

285

244

226

226

226

264

237

308

244

207 

174

160

168

174 

207

330

264

207

174

174

207

207

207

207

207

264

558" 675 

8,023

259

15, 900

Jan.

403

378

403

642

900

662

483

428

378

330

330

285

244 

226

207

237

1,040 

820

578

483

428

428

428

378

354

294

368

308

308

368 

285

13,404

432

26,600

Feb.

264

244

54?

244

244

244

244

244

244

244

244

244

244 

277

264

244

284 

285

273

285

330

285

285

330

308

285

285

330

-

7,543

269

15,000

Mar.

403

483

578

731

805

689

662

610

610

545

514

578

945 

710

662

662

662 

990

745

662

610

642

558

545

545

472

428

472

483

483 

495

18,979

612

37,600

Apr.

558

662

675

610

545

545

483

483

483

532

545

584

545 

545

508

439

398 

378

378

378

483

642

782

597

578

558

662

860

860" 900

17,196

573

34,100

May

945

745

623

552

545

558

545

514

578

731

836

990

1,040 

945

900

990

745 

578

514

642

456

545

710

710

945

990

1,040

836

675

578

514

22,515

726

44,700

June

545

558

558

597

782

836" 945

662

710

689

623

610

558 

514

472

418

368 

285

340

403

368

456

456

340

340

285

285

264

26?

264

14,795

493

29,300

July

264

264

252

244

214

194

190

174

174

174

174

174

160 

145

145

145

137 

132

132

132

*132

132

132

132

119

108

108

108

108

101 

108

4,908

 158

9,730

Aug.

97

IT

93

93

93

97

97

97

97

78

78

78

78 

78

78

78

78 

78

78

78

78

78

78

78

78

78

61

61

61

61 

58

2,489

80.3

4,940

Sept.

57

57

57

57

55

57

57

58

58

58

*54

5T

57 

57

57

57

57 

58

58

58

58

58

58

58

58

58

58

57

57

57

1,718

57.3

3,410

Calendar year 192O: Max 2,480 Min 31 Mean 196 Ac-ft 143,000

Water year 1920-21: Max 2,480 Min 31 Mean 348 Ac-ft 252,000

* Discharge measurement made on this day.

Discharge, in cubic feet per second, water year October 1921 to September 1922

Day

1 

2 

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

57 

57 

57

57

57

57

57

57

57

57

57

57

57

58

58

58

58

58

58 

58

58

58

58

58

58

60

58

58

58

58

58

1,787

57.6

3,540

Nov.

58 

58 

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58

58 

58

58

119

75

60

58

58

58

58

58

119

1,881

62.7

3,730

Dec.

162 

119 

75

58m

58

58

58

58

58

58

58

58

58

58

58

58

64

61 

108

78

61

61

61

162

225

260 108"

78

78

172

2,745

88.5

5,440

Jan.

810 

360 

216

146

124

119

107

108

108

108

97

97

88

88

18

88

108

97

88 

88

78

78

78

78

78

78

78

78

78

78

78

3,982

128

7,870

Feb.

78 

78 

78

78

78

78

78

108

208

186

146

119

119

97

101

119

132

335

m

310

225

178

178

178

310

238

216

5,054

180

10,000

Mar.

174 

174 

174

160

132

TT9" 119

119

119

119

119

119

119

160

330

285

285

244

207 

214

226

264

354

578

330

330

330

330

330

330

378

7,271

235

14,400

Apr.

330 

330 

403

514

428

378

340

495

456

378

428

428

330

285

207

285

244

207

308 

354

439

571

675

860

900

860

900

900

900

900

15,033

501

29,800

May

945 

990 

1,280

1,490

1,730

1,610

1,490

1,280

990

710

610

675

610

820

2,480

1,820

2,160

1,760

1,460 

1,760

1,400

1,350

1,690

1,630

1,300

876

918

1,200

1,400

2 , 090

1,950

42,474

1,370

84,200

June

1,630 

2,500 

1,950

1,820

1,690

1,200

1,010

1,010

656

1,100

963

1,010

918

1,010

1,200

1,200

1,100

1,100

1,010 

918

836

689

623

724

623

623

656

578

526

466

31,139

1,040

61 , 800

July

m413

413

364

364

316

316

273

273

252

233

233

214

214

214

197

197

197 

165

160

157

151

*137_

137

137

*137

137

137

137 

137

7,238

233

14,400

Aug.

112

IT?

112

112

108

112

124

112

101

101

101

101

101

112

101

91

91

91

91 

91

88

93

93

82

54

50soso

50 

50

50

2,787

89.9

5,530

Sept.

50 

66 

54

50

50

50

70

60

65

65

70

70

70

70

70

70

66

70

70 

70

70

70

70

70

70

70

70

70

70

70

1,976

65.9

3,920

Calendar year 1921: Max 1,040 Min 54 Mean 301 Ac-ft 218,000

Water year 1921-22: Max 2,480 Min 50 Mean 338 Ac-ft 245,000

* Discharge measurement made on this day.
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 617

Measurements of streamflow in the area covered by this report made at points other than 

regular gaging stations are given in the following table. Most of these measurements were 

made during" plriods of base flow when streamflow is primarily from ground-water storage. 

Measurements believed to have been made under base-flow conditions are identified by an 

asterisk (*) to the left of the discharge figure. These measurements when correlated with 

the simultaneous discharge of a nearby stream where continuous records are i( available will 

give a picture of the low-flow potentiality of stream. The column headed Measured 

previously" shows the water years in which measurements were made at the same, or practically the same, site.

Discharge measurements made at points other than gaging stations during water year 1957

SANTA ANA RIVER BASIN, CALIF. 

Absorption studies, lower Santa Ana River, Orange County, Calif.

These measurements were made by the Orange County Flood Control District to determine the rate 

of absorption along the stream bed of the Santa Ana River, covering that Portion of the river from 

Yorba Bridge to the Geological Survey gaging station, Santa Ana River at Santa Ana. The measurements are listed In downstream order. Flow Includes release to river from The Metropolitan Water 

District of Southern California.

Santa Ana River, lat 33°51'30", long 117°47'12", In Canon de Santa Ana Grant, 

1,000 ft upstream from Yorba Bridge and 2.7 miles southeast of Atwood, 

Orange County (measured previously 1958-56)

Date

Oct. 1

3

5

8

10

11

15

17

19

22

24

29

31

Nov. 2

5

7

9

12

14

16

21

23

26

28

30

Dec. 3

5

10

12

14

19

Discharge

83.7

83.3

96.5

103

96.7

162

127

133

174

171

171

188

176

175

165

170

162

158

116

138

121

114

125

53.0

124

108

132

185

175

174

176

Date

Dec. 24

26

28

31

Jan. 7

9

11

14

16

18

21

25

28

30

Feb. 1

4

6

8

11

13

15

18

20

25

27

Mar. 4

6

8

11

13

15

Discharge

168

209

190

152

5.3

8.1

8.9

348

77.3

64.4

73.8

56.9

47.4

126

74.2

48.9

34.4

38.6

44.7

49.9

41.6

47.7

46.9

74.5

74.1

92.6

70.0

70.8

54.5

67.8

61.5

Date

Mar. 18

20

25

29

Apr. 1

3

5

8

10

15

17

19

22

24

26

29

May 1

3

6

10

13

15

17

20

22

24

27

29

31

June 3

Discharge

63.8

57.8

48.3

33.8

40.9

26.6

12.7

10.1

15.4

11.7

8.9

7.3

85.3

70.1

60.1

13.2

.1

168

197

175

201

208

195

201

222

230

242

269

272

291

Date

June 5

7

10

12

14

17

19

21

24

26

28

July 1

3

5

8

8

12

Aug. 23

26

30

Sept. 2

6

9

11

13

16

20

23

24

Discharge

326

296

337

301

317

170

282

318

331

345

331

310

353

329

261

0

0

228

231

239

274

275

308

290

308

301

324

292

0

Santa Ana River, lat 33°50'55" 

Jefferson Street Bridge, 1

, long 117°50'05", In SW£ sec. 4, T. 4 S., R. 9 W., at 

mile north of Olive (measured previously 1938-56)

Oct. 1

3

5

8

10

11

17

19

22

24

29

Nov. 2

5

9

16

23

26

28

Dec. 3

10

14

19

24

28

31

3.1

3.2

3.7

2.5

0

0

5.9

34.3

56.5

73.0

79.9

62.5

69.9

50.2

52.2

30.1

38.3

34.4

49.6

96.2

75.0

85.7

62.4

96.4

93.1

Jan. 11

14

16

18

21

25

28

30

Feb. 1

4

6

8

11

15

18

20

25

27

Mar. 4

6

8

11

13

15

0

126

12.9

12.1

17.5

7.0

2.2

47.1

4.9

11.5

.1

3.2

1.0

2.1

3.1

2.1

20.7

10.8

19.5

8.8

7.4

22.4

14.3

5.0

Mar. 18

20

25

29

Apr. 1

5

22

24

26

29

May 3

6

10

13

17

20

24

27

29

31

June 3

5

7

10

11.9

9.3

4.5

.2

2.4

0

.7

3.6

1.3

1.3

0

25.4

73.6

107

114

127

105

148

151

164

206

206

201

239

June 12

14

17

19

21

24

26

28

July 1

3

5

8

12

Aug. 23

26

30

Sept. 2

6

9

11

13

16

20

23

209

222

116

150

192

233

236

226

225

251

240

280

0

0

69.2

131

136

140

162

160

173

170

75.0

182

Santa Ana River, lat 33°50'08", long 117°51'49", In San Juan Cajon de Santa Ana Grant, at AnaheimOllve Bridge, 1.1 miles west of Olive, Orange County (measured previously 1938-56)

Dec. 14

17

19

24

26

28

31

Jan. 14

16

May 17

 375 

12.4

0

2.2

17.4

7.9

11.3

0

0

0

 May 22 

24

27

29

31

June 3

5

7

10

12

 i7§ 1

13.7

38.7

18.8

14.6

31.1

36.3

42.1

71.2

60.9

June 14

17

19

21

24

26

28

July 1

3

5

2.7

29.4

2.7

23.8

35.3

71.6

50.1

53.9

46.9

41.2

July 8

Sept. 2

6

9

11

13

16

20

23

34.1

20.6

18.3

34.2

32.0

21.2

23.1

32.2

39.7
618 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 

Discharge measurements made at points other than gaging stations during water year 1957--Contlnued

The following measurements were made by the Geological Survey for the Bureau of Reclamation to 

determine the rate of absorption along the stream bed of the Santa Ynez River from Los Laureles 

Canyon to the Pacific Ocean. The measurements are in downstream order.

Santa YneE River, lat 34°35'35", long 120°00'45", in Canada de los Plnos Grant, at Crawford's

Reef, 1.3 miles upstream from Santa Agueda Creek and 5 miles southeast of Santa Ynez,

Santa Barbara County, Calif.

Date

Sept. 19

20

20

20

20

Discharge

153

40.8

165

104

66.3

Date

Sept. 21

25

25

25

25

Discharge

0.48

83.0

132

148

172

Date

Sept. 25

25

25

25

Discharge

186

197

208

208

Date

Sept. 25

26

27

29

Discharge

219

230

t235

t246

Santa Ynez River, lat 34°35'00", long 120°03'40", In Canada de los Plnos Grant, at Meyers

Crossing, 1.8 miles downstream from San Lucas Bridge and 2.3 miles southeast of

Santa Ynez, Santa Barbara County, Calif, (measured previously 1954)

Sept. 20

25

35

18.8

t!04

t95.1

Sept. 26

26

27

t!75 II Sept. 27 ties 28

t216 |[

t231

t230

Sept. 29

30

t242

t260

Santa Ynez River, lat 34°35'50", long 120°10'20", In Nojoqui Grant, at Gardner's crossing,

1.8 miles upstream from Nojoqul Creek and 1..6 miles southeast of Buellton,

Santa Barbara County

Sept. 28 

28

44.0 

49.8

| Sept. 29 

II 29

98.6 

106

II Sept. 29 112 || 

143 II

Santa Ynez River, lat 34°36'55", long 120°13'20", on boundary of San Carlos de Jonata Grant, 

______at Doty-Mercer crossing, 1.6 miles Vest of Buellton, Santa Barbara County_______ 

t.50 | 57.0 ]| Sept. 50 | 64.5 ||

U. S. Bureau of Reclamation.

Stream Tributary to Location

Drainage 

area 

(sq ml)

Measured 

previously 

(water 

years)

Date

Discharge 

(cfs)

Santa Ynez River basin, Calif.

Devils Canyon

Creek.

Cuyama River.

Santa Ynez

River.

Santa Maria

River.

Lat 34°31'21", long 119°41'17",

0.3 mile downstream from

Gibraltar Dam and 7 miles north

of Santa Barbara, Santa Barbara

County.

Lat 35°02'20", long 119°53'10",

0.3 mile below Cottonwood Creek

on San Luls Oblspo-Santa Barbara

County line and 15 miles northwest of Cuyama.

_

-

1952

1954

May 28

June 27

May 15

June 13

0.26

..06

2.39

0

Butano Creek basin, Calif.

Butano Creek. Pacific Ocean Lat 37°14'03", long 122°21'57", In 

Butano Grant, 0.2 mile downstream from unnamed tributary 

and 2.0 miles south of 

Pescadero.

Feb. 24 *48.6

Tulare Lake basin

Los Gatos

Creek.

Do ........

Do ........

Cantua Creek.

Do.. ......

Do ........

Do ........

Tulare Lake

basin.

... .do. ......

.....do.......

. ...do. ......

... .do. ......

....do.......

.. . .do.. . ....

On line between SW-JSE£ sec. 5,

T. 20 S., R. 14 E., at gaging

station 1.1 miles upstream from

Nunez Canyon.

SWi-SE-J sec. 11, T. 20 S . , R. 14 E,

at angle point in road.

NEjSEi sec. 13, T. 20 S . , R. 14 E.,

at road bridge on Derrick Ave .

SEj-SEi sec. 34, T. 17 S., R. 14 E.,

at road ford.

NEj-NWi sec. 36, T. 17 S., R. 14 E.,

upstream from diversion.

NEirNE^ sec. 6, T. 18 S., R. 15 E.,

at lower end of diversion ditch.

NWs-NWi sec. 31, T. 17 S., R. 15 E.,

upstream from diversion structure at State Highway 33.

95.5

_

-

-

-

-

-

1949-56

1954-56

1954-56

1954-56

1954-56

1954

1956

Feb. 28

Mar. 20

Apr. 26

Feb. 28

Mar. 20

Apr. 26

Feb. 28

Mar. 20

Feb. 28

Mar. 19

Apr. 26

Feb. 28

Mar. 19

Apr. 26

Feb. 28

Mar. 19

Apr. 26

Mar. 19

4.40

.61

.5

3.30

.18

0

2.56

0

3.23

.63

.9

1.95

.35

.3

.64

.08

0

0

San Joaquln River basin, Calif.

Panoche Creek

Do.. ......

Little Panoche Creek.

San Joaquin 

River.

.. ..do. ......

. . ..do... . .. .

SwiSW£ sec. 16, T. 15 S., R. 12 E ., 

gaging station at old diversion 

dam.

SE^NEi sec. 16, T. 15 S . , R. 12 E., 

at edge of foothills opposite

point of bluff. 

NWiNwi sec. 22, T. 13 S., R. 11 E.,

opposite barn at edge of foothills.

299

-

.

1949-56

1954-56

1954-56

Mar. 1 

Mar. 19 

Apr. 26

Mar. 1 

Mar. 19

Mar. 1

Mar. 19

2.49 

.21 

.04

1.85 

.1

.5

.46
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 619

Discharge measurements made at points other than gaging stations during water year 1957 Continued

Stream Tributary to Location

Drainage 

area 

(sq ml)

Measured 

previously 

(water 

years)

Date Discharge 

(cfs)

San Joaquln River basin, Calif. Continued

Little Panoche Creek.

Los Banos

Creek.

Do ........

Do ........

San Luls

Creek.

Do ........

Do ........

Garzas Creek.

Do ........

Do. .......

Orestlmba

Creek.

Do ........

Do ........

Do ........

Do ........

Del Puerto

Creek.

Do. .......

Do ........

Do ........

Corral Hollow

Creek.

Do ........

Do ........

Bear Creek. . .

Do ........

Do ........

Do ........

San Joaquln

River.

.... do .......

....do.......

....do.......

....do.......

. . ..do.. .....

.. ..do.......

... .do. ......

. . . .do. ......

....do. ......

....do.......

... .do...... .

... .do. ......

....do...... .

....do..... ..

....do.......

....do.......

.. ..do.......

do

.. ..do. ......

... .do. ......

.... do .......

....do.... ...

.... do .......

....do.......

....do.......

SW^NWi sec. 12, T. 13 S., R. 11 E.

upstream from diversion structure . '

NE£SE£ sec. 20, T. 11 S., R. 8 E.j

500 ft downstream from confluence of North and South Forks

SE£NE£ sec. 20, T. 11 s., R. 9 E.,

at mouth of gorge.

SE£-NE£ sec. 15, T. 11 S., R. 9 E.,

downstream from Los Banos Creek

gorge . SE{NE| sec. is, T. 10 s., R. s E.,

at gaging station on San Luls

Ranch, near Los Banos.

SE^-NWi sec. 1, T. 10 S., R. 8 E.,

at Delta-Mendota Canal crossing.

SE^SEi sec. 31, T. 9 S., -R. 9 E.,

at crossing on State Highway 33.

NWiSE^ sec. 18, T. 8 S., R. 8 E.,

at foothills.

SEiNE£ sec. 17, T. 8 S., R. 8 E.,

at road ford.

NE£SE£ sec. 15, T. 8 S., R. 8 E.,

at road crossing.

SE&3Ei sec. 28, T. 7 S., R. 7 E.,

at point of change to valley

type terrain.

SWiSWt sec. 19, T. 7 S., R. 8 E.,

at road ford 1^ miles upstream

from gaging station.

NW£ sec. 20, T. 7 S., R. 8 E., at

gaging station near Newman.

SW^SWi sec. 9, T. 7 S., R. 8 E.,

at Delta-Mendota Road siphon.

SWiSWi sec. 2, T. 7 S., R. 8 E.,

at road ford l£ miles southwest of Stomar.

SW^NWj sec. 21, T. 53., R. 7 E.,

at Rock Points at mouth of

Puerto Canyon.

NWjNW£ sec. 22, T. 5 S., R. 7 E.,

at bridge downstream from

Delta-Mendota Canal siphon.

NWjSW^ sec. 14, T. 5 S., R. 7 E.,

at road crossing near Halght

School .

NE&3E-J sec. 11, T. 5 S., R. 7 E.,

at State Highway 33 road

crossing near Mulberry Road.

SE-jNE-i sec. 24, T. 3 S., R. 4 E.,

north of Black Butte.

NE^NE^ sec. 17, T. 3 S., R. 5 E.,

south of Tracy at DeltaMendota Canal siphon. 

NW^NWi sec. 14, T. 3 S., R. 5 E.,

1 mile south of Jefferson 

School.

SE-i sec. 22, T. 4 N., R. 9 E.,

500 ft downstream from

Mokelumne Aqueduct wasteway.

NW£ sec. 23, T. 3 N., R. 7 E.,

300 ft west of Highway 88

and 5.3 miles downstream from

gaging station near Lockeford.

SWif sec. 31, T. 3 N., R. 7 E.,

at Highway 99, 4 miles south

of Lodl.

SE£ sec. 8, T. 2 N., R. 6 E.,

150 ft downstream from

Thornton Road.

-

_

_

_

84.7

-

_

_

-

_

_

_

129

_

-

.

_

_

-

-

_

-

-

1954-55

1954-56

1954-56

1956

1949-56

1954,1956

1956

1954,1956

1956

1956

1954-56

1955-56

1932-56

1956

1956

1954-56

1954-56

1954-56

1954-56

1954-56

1956

1956

Mar. 19

Mar. 4

Mar. 20

Mar. 4

Mar. 20

Mar. 20

Mar. 21

Mar. 4

Mar. 21

Mar. 21

Mar. 21

Mar. 4

Mar. 21

Mar. 4

Mar. 21

Mar. 5

Mar. 21

Mar. 5

Mar. 21

Mar. 5

Mar. 21

Mar. 5

Mar. 21

Mar. 5

Mar. 21

Feb. 27

Mar. 21

Apr. 25

Feb. 27

Mar. 21

Apr. 25

Feb. 27

Mar. 21

Feb. 27

Mar. 21

Feb. 27

Mar. 22

Apr. 25

Feb. 27

Mar. 22

Apr. 25 

Feb. 27

Mar. 22 

Apr. 25

Jan. 2

Jan. 2

Jan. 2

Jan. 2

0

8.41

1.23

0

0

0

.48

0

.02

0

0

0

0

0

0

16.2

3.56

12.0

1.53

9.20

.03

4.38

0

0

0

9.58

1.40

1.2

9.52

.55

.6

8.71

.16

6.96

.1

.3

.2

.02

0

0

0 

0

0 

0

22.8

20.8

19.3

17.1
620 DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS

Discharge measurements made at points other than gaging stations during water year 1957 Continued

Stream Tributary to Location

Drainage 

area 

(sq ml)

Measured 

previously 

(water 

years)

Date Discharge 

(cfs)

Russian River basin, Calif.

Robertson

Creek.

Franz Creek. .

Creek.

Warm Springs 

Creek.

Mark West 

Creek.

Russian River 

..... do .......

Dry Creek. . . .

Russian River

500 ft upstream from right bank 

tributary, 2.3 miles upstream 

from mouth, and 3i miles south 

of Uklah. 

SW£ sec. 24, T. 9 N., R. 8 W.,

0.2 mile downstream from right 

bank tributary and 2 miles 

southwest of Kellogg.

bank tributary, 2.2 miles above 

mouth, and 5 miles south of 

Hopland. 

SEj- sec. 24, T. 10 N., R. 11 W., 

at Skaggs Springs, 0.1 mile 

downstream from Little Warm 

Springs Creek.

tributary, 2.6 miles downstream 

from Wallace Creek, and 3.8 

miles southwest of Healdsburg. 

At former gaging station, 5 miles 

upstream from Laguna de Santa 

Rosa.

14.4

-

49

1956

1940-41, 

1956

Sept. 4 

Dec. 20

Peb. 25

Sept. 4

Peb. 25 

Peb. 26

Dec. 20 

Peb. 25

*0.90 

*.56

319

*.68

146 

147

*2.50 

348

Ten Mile River basin, Calif.

North Fork

Ten Mile

River.

Ten Mile

River.

NW£ sec. 25, T. 20 N., R. 17 W.,

0.2 mile upstream from confluence with Middle Fork Ten

Mile River and 10.5 miles

northeast of Fort Bragg.

39.1 1951-56 Oct. 19 *4.75

Tomki Creek. .

Black Butte

River.

South Fork

Van Duzen

River.

Eel River.. ,.

Middle Fork

Eel River.

Van Due en

River.

At county bridge, 1.1 miles

upstream from Cave Creek and

6.2 miles northeast of Willits.

SE£ sec. 28, T. 23 N., R. 11 W.,

0.5 mile upstream from mouth

and 9.1 miles east of Covelo .

NE£ sec. 30, T. 1 N., R. 5 E.,

0.3 mile upstream from Butte

Creek and 8 miles east of

Bridgeville.

-

161

36.2

1951-56

1951-56

Sept. 4

.Nov. 2

Feb. 25

Oct. 6

Feb. 24

Feb. 24

Feb. 27

Mar. 6

May 16

May 30

June 10

June 25

July 28

Aug. 21

*0.28

*92.6

2,370

*2.54

3,410

3,840

828

1,000

*135

*125

*54.2

*25.0

*11.2

*7.00

Klamath River basin

Big Spring

Creek.

Wood River...

Lost River. . .

Beaver Creek.

South Fork

Salmon

River.

Williamson

River in

Klamath

Marsh.

Upper Klamath

Lake.

Klamath River

via Lost

River

diversion

canal .

Klamath River

Salmon River.

Sec. 22, T. 30 S., R. 8 E., below

tributary on Lens Ranch , Oreg.

At former gaging station at Fort

Klamath, Oreg.

Above Irwin pump station, sec. 18,

T. 39 S., R. 12 E., 3 miles

southeast of Bonanza, Oreg.

Wi sec. 30, T. 47 N., R. 8 W., 2.0

miles downstream from mouth and

15 miles northwest of Yreka,

Calif.

NE£ sec. 31, T. 39 N., R. 12 W.,

100 ft downstream from Methodist

Creek and 4.5 miles southeast of

Forks of Salmon, Calif.

a80

a 90

al,260

103

251

1915-23,

1925-27,

1949-54,

1956

1905-36,

1949-56

1951-52,

1954-55

1953-56

1953-56

Oct. 8

Oct. 8

Feb. 14

Mar. 28

June 19

Mar. 26

Oct. 10

Nov. 21

Jan. 9

Feb. 6

Feb. 27

Mar. 29

Apr. 24

May 8

May 22

June 1 2

June 25

July 24

Aug. 22

Sept. 9

Oct. 9

May 7

May 29

June 5

June 28

Aug. 1

*80.3

*338

381

*394

*322

349

*45.0

*56.8

*55.7

*53.8

547

447

204

365

254

*164

*113

*S9.4

*39.4

*32.2

*40.6

1,080

1,150

910

*368

*76.4

* Base flow.

a Approximately.
DISCHARGE MEASUREMENTS AT POINTS OTHER THAN GAGING STATIONS 621

Discharge measurements made at points other than gaging stations during water year 1957 Continued

Stream Tributary to Location

Drainage 

area 

(sq mi)

Measured 

previously 

(water 

years)

Date Discharge 

(cfs)

Klamath River basln--Continued

North Fork

Salmon

River.

Bluff Creek . .

South Pork

Trinity

River.

Salmon River.

Klamath River

Trinity River

SE£ sec. 29, T. 40 N., R. 11 W.,

Just downstream from Jessops

Gulch in Sawyers Bar, Calif.

NWi sec. 30, T. 10 N. , R. 5 E.,

0.8 mile upstream from mouth

and 4 miles northeast of

Weitchpec, Calif.

SEi sec. 13, T. 1 S., R. 7 E., at

highway bridge at Forest Glen,

1.0 mile downstream from

Rattlesnake Creek, Calif.

98.6

f

74.6

208

1954-56

1932-35,

1937-39,

1942-45,

1947-48,

1951-56

1953-56

Oct. 9

Feb. 27

May 8

May 29

June 5

June 28

Aug. 1

Aug. 24

Sept. 7

Oct. 8

May 8

May 28

June 4

June 27

July 31

Aug. 24

Oct. 19

Nov. 13

Jan. 4

Mar. 25

May 7

May 22

June 6

June 19

July 15

Aug. 30

*21.0

2,410

1,060

747

582

*174

*46.3

*24.2

*20.2

*46.7

232

275

237

*123

*69.2

*54.7

*25.6

*44.6

*23.4

566

302

1,040

275

*155

*71.9

*27.1

Smith River basin, Calif.

Middle Fork

Smith River

North Fork

Smith River

South Fork

Smith River

Smith River. .

....do.......

....do.......

NE£ sec. 28, T. 17 N., R. 2 E .',

0.9 mile southeast of Gasquet

and 1.0 mile upstream from

mouth.

NEc sec. 20, T. 17 N., R. 2 E.,

0.7 mile upstream from mouth

and 0.7 mile north of Gasquet.

SEi sec. 15, T. 15 N., R. 2 E.,

at road bridge, 1.0 mile

northwest of Big Flat Guard

station.

130

158

214

1952-56

1952-56

Oct. 4

May 7

May 28

June 11

June 26

July 26

Aug. 23

Oct. 3

May 7

June 11

June 26

July 26

Aug. 23

Feb. 28

Mar. 1

Mar. 6

May 8

May 28

June 10

June 26

July 25

Aug. 22

*54.3

327

427

221

*150

*90.5

*66.2

*52.9

302

238

 166

*101

 14.2

4,840

3,310

7,900

744

924

475

*306

*186

*135

INDEX

"A" Canal at Klamath Palls, Oreg.....574,576 

Accuracy of field data and computed

results......................... 7-8

Acre-foot, definition of.............. 2

Adobe Creek near Kelseyville, Calif... 500 

Agencies other than Geological Survey,

records collected by............ 12-14

Alameda Creek near Miles, Calif......225-226

Alameda storm drain near Orange,

Calif........................... 12

Alamitos Creek near Edenvale, Calif... 218 

Alamo Creek near Santa Maria, Calif... 181 

Alder Creek near White Hall, Calif.... 488

Alderpoint, Calif., Eel River at...... 553

Alhambra Wash at Wilmar, Calif........ 12

Aliso Creek at El Toro, Calif. ........ 52

Aliso Wash near Northridge, Calif..... 12

Almanor-Butt Creek tunnel, diversion

by.............................. 437

Alpine, Calif., Sweetwater River near. 27

American River, at Pair Oaks, Calif..496-497

at Sacramento, Calif................ 498

Middle Pork, at French Meadows,

Calif........................... 475

near Auburn, Calif................ 482

North Pork at North Pork Dam, Calif. 474 

South Pork, near Camino, Calif...... 492

near Kyburz, Calif................ 487

near Lotus, Calif................. 493

Angel Creek near McCloud, Calif....... 398

Annapolis, Calif., South Pork Gfualala

River near...................... 538

Antelope Creek (Lower Klamath Lake

basin) nearTennant, Calif...... 567

Antelope Creek (Sacramento River

basin) , near Red Bluff, Calif... 414 

seepage investigation of............ 516

Arcadia Wash channel near Arcadia ,

Calif........................... 12

Arcadia Wash near Arcadia , Calif...... 12

Arcata, Calif., Mad River near........ 562

Arlington, Calif. , Santa Ana River

near............................ 77

Arnold Meadow, Calif., Chiquito Creek

near............................ 277

Arrowhead Springs, Calif., East Twin

Creek near...................... 65

Waterman Canyon Creek near.......... 66

Arroyo de la Cruz near San Simeon,

Calif........................... 187

Arroyo Grande at Arroyo Grande

Calif........................... 186

Arroyo Nicasio near Point Reyes

Station, Calif.................. 529

Arroyo Seco (Los Angeles River basin)

near Pasadena, Calif.........12 ,16,120

Arroyo Seco (Salinas River basin)

near Soledad, Calif............. 200

Arroyo Simi, near Moorpark, Calif..... 12

near Simi, Calif.................... 12

Arroyo Trabuco near San Juan

Capistrano, Calif............... 52

Artesia, Calif., Coyote Creek near.... 110

Ashland, Oreg., Keene Creek near...... 581

Atascadero Creek near Goleta, Calif... 153 

Auberry, Calif., San Joaquin River

near............................ 285

Willow Creek at mouth near.......... 288

Auburn, Calif. , Bear River near....... 467

Middle Pork American River near..... 482

Avery, Calif., Middle Pork Stanislaus

River near...................... 336

North Fork Stanislaus River near.... 339

Azusa, Calif., Rogers Creek near...... 98

San Gabriel River near.............. 97

Page 

Bagby, Calif., Merced River at......... 307

Baldwin Park, Calif., San Gabriel

River near....................... 100

Ballona Creek, at Los Angeles, Calif... 12 

near Culver City, Calif.............. 132

Banana Street channel near Fontana,

Calif............................ 12

Bangor, Calif., South Honcut Creek

near............................. 450

Barrett Reservoir, Calif., monthly

contents of...................... 18

Bass Lake, Calif., North Pork Willow

Creek near....................... 287

Pacific Gas & Electric Co. conduit

No. 3 near....................... 286

Batavia storm drain near Orange, Calif. 12 

Battle Creek near Cottonwood, Calif.... 411

Bautista Creek near Hemet, Calif....... 84

Bear Creek -(tributary to San Joaquin

River) near Lockeford, Calif..... 362

near Merced, Calif................... 12

Bear Creek (tributary to South Fork

San Joaquin River) near Lake

Thomas A. Edison, Calif.......... 273

Bear Reservoir near Planada, Calif..... 12

Bear River (tributary to Feather

River) near Auburn, Calif........ 467

near Wheatland, Calif................ 468

Bear River (tributary to North Pork

Mokelumne River), at Pardoe Camp,

Calif............................ 609

near Salt Springs Dam, Calif......... 369

Beardsley Dam, Calif., Middle Pork

Stanislaus River below........... 335

Beatty, Oreg., Sprague River near...... 570

Beaumont, Calif., Little San Gorgonio

Creek near....................... 63

Beryl Avenue storm drain near Alta

Loma, Calif..."................... 12

Bidwell Bar, Calif., Feather River at.. 435 

Bieber, Calif. , Pit River near......... 390

Big Bar, Calif. , North Fork Feather

River at......................... 446

Big Bear Lake near Big Bear Lake,

Calif............................ 54

Big Bend, Calif. , Pit River at......... 394

Big Chico Creek, Lindo Channel of,

seepage investigation of......... 520

near Chico, Calif....:............... 420

seepage investigation of............. 520

Big Creek, Calif. , Florence Lake

near............................. 270

Huntington Lake near................. 280

Lake Thomas A. Edison near........... 274

San Joaquin River above.............. 278

Shaver Lake near..................... 284

Big Creek (San Joaquin River basin)

below Huntington Lake , Calif..... 281 

Big Creek (Tulare Lake basin) above

Pine Plat Reservoir, Calif....... 261

Big Dalton Creek near Glendora, Calif.. 12 

Big Dry Creek Reservoir, Big Dry

Outlet, near Clovis, Calif....... 12

Little Dry Outlet, near Clovis,

Calif............................ 12

Big Grizzly Creek near Portola, Calif.. 428 

Big Sand Creek at Patton, Calif........ 12

Big Sulphur Creek near Cloverdale,

Calif............................ 534

Big Sur, Calif., Sur River at.......... 188

Big Trees, Calif., San Lorenzo River

at....................... ........ 211

Big Tujunga Creek near Sunland,

Calif............................ 12

Biola, Calif., San Joaquin River near.. 296

623
 24 INDEX

Blackcap Mountain, Calif. , Fleming

Creek neap...................... 256

Post Corral Creek near.............. 257

Blue Lake, Calif., Redwood Creek near. 564 

Bonsall, Calif., San Luis Rey River

near............................ 40

Borel Canal below Isabella Dam,

Calif... ........ ...............238,242

Boulder Creek at Cuyamaca Reservoir,

near Julian, Calif.............. 29

Bouton Creek near Long Beach, Calif.. . 12 

Bowman Lake, Calif., Canyon Creek

below........................... 460

near Graniteville, Calif............ 458

Bowman-Spaulding Canal at intake,

Calif. .......................... 459

Boyes Hot Springs, Calif., Sonoma

Creek at........................ 525

Bradley, Calif., Salinas River near... 199 

Branciforte Creek at Santa Cruz,

Calif........ ................... 213

Branscomb, Calif. , South Fork Eel

River near...................... 554

Brea, Calif., Fullerton Creek near.... 109

Brea Creek, at Fullerton, Calif....... 108

below Brea Dam, near Fullerton,

Calif........................... 107

Bridgeville, Calif., Van Duzen River

near............................ 558

Brownsville, Calif., Dry Creek near... 464 

Bryson, Calif., -Nacimiento River

near............................ 196

Buchanan dam site, Calif., Chowchilla

River at........................ 300

Bucks Lake near Bucks Lodge, Calif.... 445

Buellton, Calif., La Zaca Creek at.... 168

Santa Ynez River at................. 167

Santa Ynez River near..............169,170

Bullards Bar Dam, Calif., North Yuba

River below..................... 456

Burbank western storm drain near

Glendale , Calif.................. 12

Burns Reservoir near Planada, Calif... 12 

Burnt Ranch, Calif., Trinity River

near............................ 590

Butt Creek, above Almanor-Butt Creek

tunnel, near Prattville, Calif.438-439 

below Almanor-Butt Creek tunnel,

near Prattville, Calif.........440-441

Butte City, Calif. , Sacramento River

at.............................. 423

Butte Creek (Lower Klamath Lake basin)

near Macdoel, Calif............. 568

Butte Creek (Sacramento River basin)

near Chico, Calif............... 425

Byron, Calif. , Marsh Creek near....... 384

Cache Creek, at Yolo, Calif........... 507

near Capay, Calif................... 506

near Lower Lake, Calif.............. 504

North Fork, near Lower Lake, Calif.. 505 

seepage investigation of............ 521

Cachuma Creek near Santa Ynez, Calif.. 160 

Cachuma Reservoir near Santa Ynez,

Calif........................... 161

Cajon Creek near Keenbrook, Calif..... 72

Calabasas, Calif., Malibu Creek near.. 134 

Calaveras River, at Jenny Lind,

Calif..........................360-361

North Fork, near San Andreas, Calif. 357 

South Fork, near San Andreas, Calif. > 353 

Calaveritas Creek near San Andreas,

Calif........................ ... 354

Calleguas Creek near Camarillo,

Calif........................... 12

Calpella, Calif., East Fork Russian

River near...................... 531

Camino, Calif. , South Fork American

River near...................... 492

Camino conduit, diversion by.......... 378

Camp Bonita, Calif. , East Fork San

Gabriel River near.............. 95

Camp Creek, near Somerset, Calif...... 378

Camp Rincon, Calif., West Fork San

Gabriel River at................ 96

Campo Creek near Campo, Calif......... 20

Canby, Calif., pit River near......... 389

Canyon Creek below Bowman Lake,

Calif................ ........... 460

Page 

Capay, Calif. , Cache Creek near........ 506

Carbon Creek, near Chino, Calif........

near Yorba Linda , Calif..............

Carlotta, Calif. , Yager Creek near....

Carpinteria Creek near Carpinteria,

Calif......................... ..

Cartargo," Calif., Golden Trout Creek

near............................

Cascade Canal near Fish Lake, Oreg....

Casitas Springs, Calif., San Antonio

Creek at........................

Casmalia, Calif., San Antonio Creek

near............................

Castaic Creek near Castaic, Calif.....

Cattle Mountain, Calif., Granite Creek

near............................

Cedar Grove, Calif. , South Fork Kings

River .near......................

Cfs-days, definition of...............

Cherry Creek Canal near Early Intake,

Calif......................... ..

Cherry Creek, near Early Intake, Calif.

12

111

559

152

235

573

148

178

12

269

252

2

321

322

near Hetch Hetchy, Calif............. 318

Chico, Calif., Big Chico Creek near.... 420

Butte Creek near..................... 425

Chiloquin, Oreg., Sprague River near... 571 

Williamson River near................ 572

Chino Creek near Chino, Calif.......... 12

Chiquito Creek near Arnold Meadow,

Calif............................ 277

Chittenden, Calif., Pajaro River at.... 208

Chowchilla River at Buchanan dam site

Calif............................ 300

Cisco, Calif., South Yuba River

near............................. 457

City Creek, near Highland, Calif....... 67-68

old channel, near East Highlands,

Calif........ .................... 12

City Creek Water Co.'s canal near

Highland, Calif.................. 68

Claremont, Calif., San Antonio Creek

near............................. 87-88

Clear Creek, at French Gulch, Calif.... 404

near Igo, Calif................'..... 405

seepage investigation of............. 513

Clear Lake at Lakeport, Calif.......... 503

Clear Lake Reservoir near Langell

Valley, Oreg..................... 12

Clements, Calif., Mokelumne River

near............................. 374

Cliff Camp, Calif., North Fork Kings

River near....................... 259

Clio, Calif., Middle Fork Feather

River near....................... 429

Clipper Mills, Calif., Lost Creek

near............................. 432-

Clover Creek near Oak Run, Calif....... 407

Cloverdale, Calif., Big Sulphur Creek

near............................. 534

Dry Creek near....................... 536

Russian River near................... 533

Coalinga, Calif., Los Gatos Creek near. 266 

Colby Ranch, Calif., Tujunga Creek

near............................. 114

Cold Creek near Mokelumne Peak, Calif.367-368

Colorado River, near Arlington, Calif.. 77

near Villa Park, Calif............... 91

Colton, Calif. , Warm Creek near........ 75-76

Colton southwest storm drain near

Coltonl Calif.................... 12

Colusa, Calif., Sacramento River at.... 424

Compton Creek, at Compton, Calif....... 12

at Watts , Calif...................... 12

Computations, accuracy of results of... 7-8 

Concord, Calif. , Galindo Creek at...... 231

Pine Creek at. 

Concow Creek near Yankee Hill, Calif..,

232

613

Conn Creek near St. Helena, Calif...... 523

Contents, definition of................ 2

Contra Costa Canal near Oakley, Calif.. 383

Control, definition of................. 2

Cooperation, record of................. 1

Copco, Calif. , Fall Creek at........... 579

Klamath River near................... 580

Corona, Calif., Santa Ana River

near............................. 80,81

Temescal Creek near.................. 86

Corralitos Creek at Freedom, Calif..... 209

Corte Madera Creek at Ross, Calif...... 528
INDEX 625

Page 

Cosgrove Creek near Valley Springs,

Calif........................... 359

Cosumnes River, at McConnell, Calif... 382 

at Michigan Bar, Calif.............. 381

near Plymouth, Calif................ 380

North Pork, near El Dorado, Calif... 379

Cottonwood, Calif., Battle Creek near.. 411

Cottonwood Creek near............... 410

Cottonwood Creek (Goose Lake basin)

near Lakeview , Oreg............. 386

Cottonwood Creek (Sacramento River

basin), Middle Fork, near Ono,

Calif........................... 409

near Cottonwood , Calif.............. 410

seepage investigation of............ 514

Cottonwood Creek (Tia Juana River

basin), above Tecate Creek, near 

Dulzura, Calif.................. 20

at Barrett Dam, near Dulzura, Calif. 18 

at Morena Dam, Calif................ 17

Cottonwood Creek Reservoir , Oreg...... 386

Covelo, Calif., Middle Fork Eel River

near............................ 549

Mill Creek near..................... 550

Cow Creek near Millville , Calif....... 408

Coyote Creek (tributary to San

Francisco Bay), near Edenvale,

Calif............................ 224

near Madrone, Calif................. 223

Coyote Creek basin, Calif., gagingstation records in.............223-224

Coyote Creek (tributary to San

Gabriel River) near Artesia,

Calif........................... 110

Coyote Creek (tributary to Ventura

River) near Ventura, Calif...... 149

Crannell, Calif., Little River at..... 563

Crescent City, Calif., South Fork

Smith River near................ 598

Smith River near.................... 599

Crescent Mills, Calif., Indian Creek

near............................ 442

Cubic feet per second per square

mile, definition of............. 2

Cubic foot per second, definition of.. 2

Cucamonga Creek, near Ontario, Calif.. 12

near Upland, Calif.................. 82

Culver City, Calif., Ballona Creek

near............................ 132

Cupertino, Calif., Stevens Creek near. 217

Cuyama River, near Santa Maria, Calif. 180

near Ventucopa , Calif............... 179

Cuyamaca Reservoir, Calif., monthly

contents of...................... 29

Dalton Creek near Glendora, Calif..... 101

Dalton Wash near Baldwin Park, Calif.. 12 

Dardanelle , Calif., Clark Fork

Stanislaus River near........... 332

Data, accuracy of..................... 7-8

explanation of...................... 3-7

Daulton, Calif., Fresno River near.... 299

Davis, Calif., Putah Creek near ....... 512

Day Creek, near Etiwanda, Calif....... 78-79

near Mira Loma, Calif............... 12

Deer Creek (tributary to Sacramento

River) , near Vina, Calif........ 419

seepage investigation of............ 519

Deer Creek (tributary to Yuba River)

near Smartville , Calif.......... 463

De Luz Creek near Fallbrook, Calif.... 45-48

Del Rosa channel, at Del Rosa, Calif.. 12 

near San Bernardino , Calif.......... 12

Delta, Calif., Sacramento River at.... 387

Delta-Mendota Canal near Tracy, Calif. 363 

Democrat Springs, Calif., Kern River

near............................ 243

Descanso, Calif., Sweetwater River

near............................ 25-26

Devil Canyon Creek near San Bernardino

Calif. .......................... 69

Dinkey Creek at mouth, Calif.......... 603

Dinsmores, Calif. , Van Duzen River

near............................ 557

Discharge measurements: 

Butano Creek basin.................. 618

Eel River basin..................... 620

Klamath River basin................620-621

Discharge measurements Continued Page 

Russian River basin.................. 620

San Joaquin River basin.............618-619

Santa Ana River basin...............617-618

Santa Ynez River basin............... 618

Smith River basin.................... 621

Ten Mile River basin................. 620

Tulare Lake basin.................... 618

Note. Streams for which only discharge measurements are available are 

not entered by name in this index. 

Dog Creek diversion near Clovis, Calif. 12 

Dominguez Channel at Torrance, Calif... 12 

Don Pedro Reservoir near La Grange,

Calif............................ 326

Dos Rios, Calif., Eel River above...... 548

Eel River below...................... 4,551

Downey, Calif., Los Angeles River near. 121 

Rio Hondo near....................... 130

Downie River at Downieville, Calif..... 615

Drainage area, definition of........... 2

Drew Creek near Lakeview, Oreg......... 385

Drew Creek Reservoir, Oreg., contents

of............................... 385

Dry Creek (tributary to Bear River)

near Wheatland, Calif............ 469

Dry Creek (tributary to Mokelumne

River basin) near Gait, Calif.... 377

Dry Creek (tributary to Napa River)

near Napa , Calif ................. 524

Dry Creek (tributary to Russian River)

near Cloverdale , Calif........... 536

Dry Creek (tributary to San Joaquin

River) at Academy, Calif......... 12

Dry Creek (tributary to Yuba River) ,

at Virginia Ranch, Calif......... 465

near Brownsville, Calif.............. 464

Duarte, Calif., Fish Creek near........ 4,99

Dulzura, Calif., Cottonwood Creek

near............................. 18,20

Dulzura conduit near................. 19

Tia Juana River near................. 21

Dulzura conduit near Dulzura, Calif.... 19

Durne Creek near Malibu, Calif.......... 12

Dunneville, Calif., Pacheco Creek near. 202 

Durkee ditch, Calif., contents of...... 81

Dutch Flat, Calif., North Fork Forbes

Creek near....................... 472

North Shirttail Creek near........... 473

Early Intake, Calif., Cherry Creek

Canal 'near....................... 321

Cherry Creek near.................... 322

East Etiwanda Creek near Etiwanda,

Calif............................ 12

East Highlands, Calif., Plunge Creek

near............................. 60-61

East Twin Creek near Arrowhead Springs,

Calif............................ 65

Eaton Creek near Pasadena, Calif....... 125

Eaton Wash, at San Gabriel, Calif...... 12

near Pasadena, Calif................. 12

Echo Lake conduit near Phillips, Calif. 483

Edenvale, Calif., Alamitos Creek near.. 218

Coyote Creek near.................... 224

Eel River, above Dos Rios , Calif....... 548

at Alderpoint, Calif................. 553

at Scotia, Calif..................... 556

at Van Ardsdale Dam, near Potter

Valley, Calif.................... 546

below Dos Rios, Calif................ 4,551

below Scott Dam, near Potter Valley,

Calif.. .......................... 544

Middle Fork, below Black Butte River

near Covelo, Calif............... 549

North Fork, near Mina, Calif......... 552

South Fork, near Branscomb, Calif.... 554

near Miranda, Calif................ 555

Eel River basin, Calif., gaging-station

records in......................543-559

Eighth Street east conduit at Upland,

Calif............................ 13

Eighth Street west spreading grounds

at Upland, Calif................. 13

El Capitan Dam, Calif., San Diego

River at......................... 30

El Capitan Reservoir, Calif., monthly

contents of...................... 30
626 INDEX

Page 

El Dorado, Calif., North Pork Cosumnes

River near...................... 379

El Portal, Calif., South Pork Merced

River near...................... 306

El Toro, Calif., Aliso Creek at....... 52

Elder Creek, at Gerber, Calif......... 417

near Paskenta, Calif................ 416

seepage investigation of............ 517

Eleanor Creek near Hetch Hetchy,

Calif........................... 320

Elk Creek, Calif., Stony Creek near... 611 

Elk Creek near Happy Camp, Calif...... 586

Elsinore, Calif., Elsinore Lake at.... 86

San Jacinto River near.............. 85

Elsinore Lake at Elsinore, Calif...... 86

Englebright Darn, Calif., Yuba River

at. ............................. 462

Enterprise, Calif., Palermo Canal at.. 433 

South Pork Feather River at......... 434

Esperanza Creek near Mokelumne Hill,

Calif........................... 355

Estrella Creek near Estrella, Calif... 195 

Etiwanda, Calif., Day Creek near...... 78-79

Etiwanda Water Co. diversion near

Etiwanda, Calif................. 79

Evey Canyon Creek near Claremont,

Calif........................... 13

Exchequer, Calif., Lake McClure at.... 308

Merced River at....................309-310

Fair Oaks, Calif., American River at.496-497 

Fallbrook, Calif., De Luz Creek

near............................ 45-48

Santa Margarita River near.......... 44

Fall Creek at Copco, Calif ............ 579

Fall River Mills, Calif., pit River

at. ............................. 611

Palls Creek near Hetch Hetchy, Calif.. 314

Feather River, at Bidwell Bar, Calif.. 435

at Nicolaus, Calif.................. 470

Middle Pork, below Sloat, Calif..... 430

near Clio, Calif.................. 429

near Merrimac, Calif.............. 431

near Oroville , Calif...............448-449

North Pork, at Big Bar, Calif....... 446

East Branch of, near Rich Bar,

Calif........................... 444

near Prattville , Calif............ 437

South Pork, at Enterprise, Calif.... 434

West Branch, near Chico, Calif.,

contents of..................... 425

near Yankee Hill, Calif........... 437

Fifteenth Street storm drain at

Upland, Calif................... 13

Fillmore, Calif., Sespe Creek near...141-142 

Pillmore Irrigation Co.'s canal near

Fillmore, Calif................. 142

Pine Gold Creek near Friant, Calif.... 290

Fish Creek near Duarte, Calif......... 4,99

Fish Lake, Oreg., Cascade Canal near.. 573 

Fleming Creek near Blackcap Mountain,

Calif........................... 256

Floods, special reports on............ 11

Florence Lake, near Big Creek, Calif.. 270 

South Fork San Joaquin River near... 272 

Folsorn Reservoir, change in contents

in.............................. 497

near Folsorn, Calif. ................. 495

Fontana, Calif., Lytle Creek near..... 70-71

Fontana pipeline. See Lytle Creek

near Fontana. 

Forbes Creek, North Pork, near Dutch

Flat, Calif. .................... 472

Forest Glen, Calif., Mad River near... 561 

Fort Bragg, Calif., Noyo River near... 540 

Fort Jones, Calif., Scott River near.. 583 

Fourmile Lake, Oreg., contents of..... 597

Freedom, Calif., Corralitos Creek at.. 209 

Premont Ford Bridge, Calif., San

Joaquin River at................ 302

French Gulch, Calif., Clear Creek at.. 404 

French Meadows, Calif., Middle Fork

American River at............... 475

Freshwater, Calif., Jacoby Creek

near............................ 560

Page 

Fresno River, near Daulton, Calif...... 299

near Knowles, Calif................. 297-298

Priant, Calif., Fine Gold Creek near... 290 

Friant-Kern Canal at................. 293

Priant-Madera Canal near............. 292

Little Dry Creek near................ 295

Millerton Lake at.................... 291

San Joaquin River below.............. 294

Priant-Kern Canal at Friant, Calif....293,294

Priant-Madera Canal near Friant,

Calif........................... 292,294

Pullerton, Calif., Brea Creek at....... 108

Brea Creek near...................... 107

below Fullerton Darn, near Brea,

Calif............................ 109

Pullerton relief channel at

Pullerton, Calif................. 13

Galindo Creek at Concord, Calif........ 231

Gait, Calif. , Dry Creek near........... 377

Garey, Calif., Sisquoc River near...... 185

Georgetown, Calif. , Georgetown

Divide ditch near...............479,480

Pilot Creek near..................... 481

Rubicon River near................... 478

South Pork Rubicon River near........ 477

Georgetown Divide ditch, above Pilot

Creek near Georgetown, Calif..... 479

near Georgetown, Calif....... ....... 480

Gerber, Calif., Elder Creek at......... 417

Gerber Reservoir near Lorella, Oreg.... 13

Gibraltar Reservoir, Calif., monthly

contents of...................... 156

Glendora , Calif., Dalton Creek near.... 101

Little Dalton Creek near............. 102

Golden Trout Creek near Cartago, Calif. 235 

Goleta, Calif., Atascadero Creek near.. 153

San Jose Creek near .................. 154

Goodyears Bar, Calif., North Yuba

River below...................... 455

Goose Lake basin, Oreg., gaging-station

records in......................385-386

Granite Creek near Cattle Mountain,

Calif............................ 269

Graniteville, Calif., Bowman Lake near. 458 

Grayson Creek near Hookston, Calif..... 233

near Pacheco, Calif.................. 234

Grizzly Creek near Storrie , Calif...... 612

Guadalupe, Calif., Guadalupe Creek at.. 219

Santa Maria River at................. 185

Guadalupe Creek at Guadalupe, Calif.... 219

Guadalupe River at San Jose, Calif..... 221

Guadalupe River basin, Calif., gagingstation records in..............218-222

Gualala River, South Fork, near

Annapolis, Calif................. 538

Guejito Creek near San Pasqual, Calif. 35 

Guenoc, Calif., Putah Creek near....... 509

Guerneville, Calif., Russian River at.. 537

Haines Creek near Tujunga, Calif....... 116

Hamilton City, Calif., Stony Creek

near............................. 422

Hansen Dam Calif., Tujunga Creek below. 118 

Happy Camp, Calif., Elk Creek near..... 586

Indian Creek near.................... 585

Harrison Creek at Del Rosa, Calif...... 13

Hat Creek near Hat Creek, Calif........ 391

Hayfork Creek, near Hayfork, Calif..... 592

near Hyampom, Calif.................. 593

Hayward, Calif., San Lorenzo Creek at.. 227 

Healdsburg, Calif., Russian River

near............................. 535

Hells Half Acre Bridge, Calif., Middle

Pork Stanislaus River at......... 333

Helms Creek at Sand Meadows, Calif..... 258

Hemet, Calif., Bautista Creek near..... 84

Herndon, Calif., San Joaquin River at.604-607 

Hetch Hetchy, Calif., Cherry Creek

near............................. 318

Eleanor Creek near................... 320

Falls Creek near:.................... 314

Hetch Hetchy Reservoir at............ 315

Lake Eleanor near.................... 319

Lake Lloyd near...................... 317
INDEX 627

Page 

Hetch Hetchy, Calif., Tuolumne River

near............................ 316

Hetch Hetchy Reservoir at Hetch

Hetchy, Calif................... 315

Highland, Calif., City Creek near..... 67-68

Highland Creek (Sacramento River

basin) near Kelseyville, Calif.. 501 

Highland Creek (San Joaquin River

basin) below Spicer Meadows

Reservoir, Calif................ 338

Hollister, Calif., San Benito River

near. ........................... 207

Hookston, Calif., Grayson Creek near.. 233 

Hoopa, Calif., Trinity River near..... 595

Hopland, Calif., Russian River near... 532 

Hopper Creek near Piru, Calif......... 139

Huasna River near Santa Maria, Calif.. 182 

Hume, Calif., Kings River near........ 253

Huntington Lake, Calif., Big Creek

below........................... 281

Huntington Lake near Big Creek, Calif. 280 

Huntington-Shaver conduit at outlet,

Calif........................... 283

Hyarnpom, Calif., Hayfork Creek near... 593 

South Fork Trinity River near....... 591

Hyatt Prairie Reservoir, Oreg.,

contents of..................... 597

Hydrologic conditions................. 15

graph............................... 16

Ice House, Calif., South Fork Silver

Creek near...................... 490

Igo, Calif., Clear Creek near......... 405

Indian Creek, near Crescent Mills,

Calif........................... 442

near Happy Camp, Calif .............. 585

Iron Creek, Calif., North Fork San

Joaquin River below ............. 267

Irvine, Calif., San Diego Creek near.. 53 

Isabella , Calif. , Kern River at....... 601

Isabella Darn, Calif., Borel Canal

below........................... 238

Kern River below .................... 242

Isabella Reservoir near Isabella,

Calif..........................241,242

"J" Canal, Oreg....................... 13

Jack Creek near Ternpleton, Calif. ..... 193

Jackass Creek near Jackass Meadow,

Calif........................... 276

Jacksonville, Calif., Woods Creek

near............................ 325

Jacoby Creek near Freshwater, Calif... 560 

Jameson Lake, Calif., monthly contents

of.............................. 155

Jarnul Creek near Jamul, Calif. ........ 23

Jenkinson Lake, change in contents

in.............................. 378

Jenny Lind, Calif., Calaveras River

at. ............................360-361

Jesus Maria Creek near Mokelumne Hill,

Calif........................... 356

Julian, Calif. , Boulder Creek near.... 29

Kaweah River, Marble Fork, at

Potwisha Camp, Calif............ 249

near Three Rivers , Calif............ 251

North Fork, at Kaweah, Calif........ 250

South Fork, near Three Rivers,

Calif........................... 602

Keddie, Calif., Spanish Creek at...... 443

Keenbrook, Calif., Cajon Creek near... 72 

Lone Pine Creek near................ 73

Keene Creek at Hyatt Prairie, near

Ashland , Oreg................... 581

Kelsey Creek near Kelseyville, Calif.. 502 

Kelseyville, C-slif., Adobe Creek

near............................ 500

Highland Creek near................. 501

Kelsey Creek near................... 502

Kennedy Meadows, Calif., Middle Fork

Stanislaus River at............. 331

Keno, Oreg., Klamath River at......... 578

Kerckhoff powerhouse, Calif., San

Joaquin River below ............. 289

Kern River at Isabella, Calif......... 601

Page

Kern River, at Kernville, Calif ........ 237

below Isabella Dam, Calif. ........... 242

below Kern Canyon powerhouse, Calif.. 244 

near Democrat Springs, Calif......... 243

near Kernville , Calif................ 236

South Fork, near Olancha, Calif...... 239

near Onyx, Calif................... 240

Kern River basin, Calif., gagingstation records in..............235-244

Kernville, Calif., Kern River at....... 237

Kern River near ...................... 236

Keswick, Calif., Sacramento River at... 403 

Keswick Reservoir, Calif. .............. 403

Kings County, Calif., Tulare Lake in... 244

Kings River, above North Fork, Calif... 254

at Piedra, Calif.....................16,265

below North Fork, Calif.............. 260

below Pine Flat Dam, Calif........... 264

near Hume, Calif..................... 253

North Fork, below Meadow Brook,

Calif............................ 255

near Cliff Camp, Calif............. 259

South Fork, near Cedar Grove, Calif.. 252 

Kirkwood, Calif., Silver Lake Outlet

near............................. 485

Twin Lakes Outlet near............... 486

Klarnath Agency, Oreg., Williamson

River near....................... 569

Klarnath, Calif., Klamath River near.... 596

Klamath Falls , Oreg. , "A" Canal at..... 574

Link River at........................ 576

Upper Klamath Lake near.............. 575

Klamath River, at Keno, Oreg........... 578

at Sornesbar, Calif................... 588

below Fall Creek, near Copco, Calif.. 580 

diversion from, to Lost River near

Olene , Oreg...................... 577

near Klamath, Calif.................. 596

near Seiad Valley, Calif............. 584

Klarnath River basin, Calif .-Oreg. ,

gaging-station records in.......569-597

smaller reservoirs in................ 597

Knights Ferry, Calif., Oakdale Canal

near. ............................ 347

South San Joaquin Canal near......... 346

Stanislaus River near................ 348

Knights Landing, Calif., Sacramento

River at......................... 427

Knowles, Calif., Fresno River near....297-298

Kyburz, Calif., South Fork American

River near....................... 487

La Brea Creek, Calif., near Sisquoc,

Calif............................ 184

La Grange, Calif., Don Pedro Reservoir

near. ............................ 326

Modesto Canal near................... 328

Tuolumne River near.................. 327

Turlock Canal near................... 329

La Tuna Creek near Sun Valley, Calif... 13 

La Veta Avenue storm drain at Orange,

Calif. ........................... 13

La Zaca Creek at Buellton, Calif....... 168

Lake Almanor near Prattville, Calif.... 436

Lake Berryessa near Winters, Calif... .510 ,511

Lake Eleanor near Hetch Hetchy, Calif.. 319 

Lake Hartley near Strawberry, Calif.... 334

Lake Henshaw Calif., monthly contents

of............................... 39

Lake Hodges, Calif., monthly contents

of............................... 37

San Dieguito River at................ 37

Lake Lloyd near Hetch Hetchy, Calif.... 317

Lake Loveland, Calif., monthly

contents of...................... 27

Lake McClure at Exchequer, Calif....... 308

Lake Pillsbury near Potter Valley,

Calif............................ 543

Lake Piru, near Piru, Calif............ 137

Piru Creek above ..................... 136

Lake Thomas A. Edison, Calif., Bear

Creek near....................... 273

Mtno Creek below ..................... 275

Lake Thomas A. Ediscn near Big Creek,

Calif............................ 274

Lakepcrt, Calif. , Clear Lake at........ 503

510529 O - 59 - 41
628 INDEX

Lakes and reservoirs:

Almanor, Lake, near Prattville,

Calif........................... 436

Barrett Reservoir, Calif............ 16

Bear Reservoir near Planada, Calif.. 1 

Berryessa, Lake, near Winters,

_Calif........................... 510

Big Dry Creek Reservoir near

Clovis, Calif...................

Bowman Lake near Graniteville,

Calif........................... 458

Bucks Lake near Bucks Lodge ,

Calif........................... 445

Burns Reservoir near Planada,

Calif........................... 12

Cachuma Reservoir near Santa Ynez,

Calif........................... 161-

Clear Lake at Lakeport, Calif....... 503

Clear Lake Reservoir near Langell

Valley, Oreg.................... 12

Cottonwood Creek Reservoir, Oreg.... 386

Cuyamaca Reservoir, Calif........... 29

Don Pedro Reservoir near La Grange,

Calif........................... 326

Drew Creek Reservoir, Calif......... 385

El Capitan Reservoir, Calif. ........< 30

Eleanor, Lake, near Hetch 'Hetchy,

Calif........................... 319

Elsinore Lake at Elsinore, Calif.... 86

Florence Lake near Big Creek, Calif. 270 

Folsom Reservoir, change in contents

in.............................. 497

near Folsom, Calif................ 495

Fourmile Lake, Oreg................. 597

Gerber Reservoir near Lorella, Oreg. 13 

Gibraltar Reservoir , Calif.......... 156

Hartley, Lake, near Strawberry,

Calif........................... 334

Henshaw , Lake, Calif................ 39

Hetch Hetchy Reservoir at Hetch

Hetchy, Calif................... 315

Hodges , Lake, Calif................. 37

Huntington Lake near Big Creek,

Calif........................... 280

Hyatt Prairie Reservoir, Oreg....... 597

Isabella Reservoir near Isabella,

Calif..........................241,242

Jameson Lake, Calif................. 155

Jenkinson Lake, Calif., change in

contents......'.................. 378

Keswick Reservoir, Calif............ 403

Lloyd, Lake, near Hetch Hetchy,

Calif........................... 317

Lost Creek Reservoir, Calif.,

change in contents .............. 432

Loveland, Lake, Calif............... 27

McClure, Lake, at Exchequer, Calif.. 308 

Mariposa Reservoir near Le Grand,

Calif......................... .. 13

Matilija Reservoir at Matilija Hot

Springs, Calif.................. 145

Melones Reservoir, Calif............ 344

Millerton Lake at Friant, Calif....291,294

Otay Reservoirs, Calif.............. 24

Owens Reservoir near Planada, Calif. 13 

Pillsbury, Lake, near Potter Valley,

Calif. .......................... 543

Pine Flat Reservoir near Piedra,

Calif......................263,264,265

Piru, Lake, near Piru, Calif........ 137

Railroad Canyon Reservoir near

Elsinore , Calif................. 85

Salinas Reservoir near Pozo, Calif.. 191 

Salt Springs Reservoir near West

Point, Calif.................... 364

Santiago Reservoir, Calif........... 91

Shasta Lake near Redding, Calif....402,403

Shaver Lake near Big Creek, Calif... 284 

Sutherland Reservoir, Calif......... 32

Sweetwater Reservoir, Calif......... 28

Thomas A. Edison, Lake, Calif....... 274

Upper Klamath Lake near Klamath

Falls , Oreg..................... 575

Vail Lake, Calif.................... 41

Lakeview, Oreg., Cottonwood Creek near. 386 

Drew Creek near..................... 385

Lancha Plana, Calif., Mokelumne River at. "373

Page

Lewiston, Calif., Trinity River at.....16 ,589 

Likely, Calif., South Fork Pit River

near............................. 388

Limekiln Creek near Chatsworth, Calif.. 13 

Lindo Channel. See Big Chico Creek,

Lindo Channel. 

Link River'at Klamath Falls, Oreg...... 576

Little Dalton Creek near Glendora,

Calif............................ 102

Little Dry Creek at mouth, near Friant,

Calif............................ 295

Little River at Crannell, Calif........ 563

Little San Gorgonio Creek near Beaumont, Calif...................... 63

Little Sand Creek at Del Rosa, Calif... 13 

Little Santa Anita Creek near Sierra

Madre, Calif..................... 124

Little Tujunga Creek near San Fernando,

Calif............................ 117

Littlejohn Creek at Farmington, Calif.. 13 

Live. Oak Creek near La Verne , Calif.... 13

Llagas Creek near Morgan Hill, Calif... 203 

Lockeford, Calif., Bear Creek near..... 362

Loma Linda, Calif. , San Timoteo Creek

near............................. 64

Lompoc, Calif., Salsipuedes Creek

near............................. 173

Santa Ynez River near...171,172,174,175,176 

Lone Pine Creek near Keenbrootc,

Calif............................ 73

Long Barn, Calif., South Fork

Stanislaus River near............ 343

Tuolumne Canal near.................. 342

Long Beach, C-alif., Los Angeles River

at..:............................ 131

Longvale, Calif., Outlet Creek near.... 547

Los Alamitos, Calif., San Gabriel River

near............................. 106

Los Angeles, Calif., Los Angeles

River at......................... 119

Los Angeles municipal supply near

Tujunga, Calif................... 116

Los Angeles River, at Long Beach, Calif. 131 

at Los Angeles , Calif..........~ .... 119

at North Hollywood, Calif............ 13

at Sepulveda Dam, Calif.............. 112

near Burbank, Calif.................. 13

near Downey, Calif................... 121

Los Angeles River basin, Calif.,

gaging-station records in.......112-131

Los Banos, Calif., Salt Slough near.... 301

Los Cerritos Channel near Long Beach,

Calif............................ 13

Los Gatos Creek (Guadalupe River basin)

at Los Gatos, Calif.............. 220

Los Gatos Creek (Tulare Lake basin)

above Nunez Canyon, near

Coalinga, Calif.................. 266

Los Molinos, Calif., Mill Creek near... 415 

Lost Creek near Clipper Mills, Calif... 432 

Lost Creek Reservoir, monthly change

in contents in................... 432

Lost River, at Lost River diversion

dam.............................. 13

near Bonanza, Oreg................... 13

near Merrill, Oreg................... 13

Lost River diversion canal near Olene,

Oreg........,..............'...... 566

Lotus, Calif., South Fork American

River hear....................... 493

Lower Klamath Lake basin, Calif. ,

gaging-station records in.......567-568

Lower Lake, Calif., Cache Creek near... 504 

North Fork Cache Creek near.......... 505

Lytle Creek, east channel of, at San

Bernardino, Calif................ 74

near Fontana, Calif.................. 70-71

McCloud, Calif., Angel Creek near...... 398

McCloud River near..............397,399,400

McCloud River, above Panther Creek,

near McCloud, Calif.............. 400

above Shasta Lake, Calif............. 401

below Big Springs near McCloud,

Calif. 397

near McCloud, Calif.................. 399

McConnell, Calif., Cosumnes River at... 382
INDEX 629^

Page

Macdoel, Calif., Butte Creek near.... 

Macey debris basin near San

Bernardino, Calif............... 13

Mad River, near Forest Glen, Calif.... 561

near Arcata, Calif.................. 562

Mad River basin, Calif., gagingstation records in.............561-562

568 Mission channel near Loma Linda, Calif. 

Mission Creek near Montebello, Calif...

Madrone, Calif., Coyote Creek near..., 

Malibu Creek at Crater Camp, near

Calabasas, Calif...............

Map of the United States.............

Mariposa Reservoir near Le Grand,

Calif.

223

134

13

Marsh Creek near Byron, Calif......... 384

Marysville, Calif., Yuba River at..... 466

Matadero Creek at Palo Alto, Calif.... 216

Matilija Creek, above reservoir, near

Matilija Hot Springs, Calif..... 144

at Matilija Hot Springs, Calif...... 146

North Pork, at Matilija Hot Springs

Calif..........................: 147

Matilija Reservoir at Matilija Hot

Springs .Calif.................. 145

Mattole River, near Petrolia, Calif... 541 

North Fork at Petrolia, Calif....... 542

Mattole River basin, Calif., gagingstation records in.............541-542

Meadow Brook, Calif., North Pork

Kings River below............... 255

Meeks & Daley Canal near Colton,

Calif........................... 75-76

Meeks Bay, Calif., Rubicon River

near............................ 476

Melones powerhouse, Calif., Stanislaus

River below..................... 345

Melones Reservoir at Melones Dam,

Calif........................... 344

Mentone, Calif., Mill Creek near...... 59

Santa Ana River near................ 55-56

Merced River, at Bagby, Calif......... 307

at Exchequer, Calif................309-310

at Happy Isles Bridge, near

Yosemite, Calif, 

at Pohono Bridge, near Yosemite,

Calif...........................

near Stevinson, Calif...............

South Pork, near El Portal, Calif... 

Merced River Slough near Newman,

Calif...........................

Merrimac, Calif., Middle Fork Feather

River near.......................

Mesa Grande, Calif. , San Luis Rey

River near......................

Michigan Bar, Calif., Cosumnes River

at..............................

Middle Tuolumne River at Oakland

Recreation Camp, Calif..........

Middle Yuba River, above Oregon Creek,

Calif.

303

305

311

306

312

431

39

381

324

453

at Milton, Calif.................... 452

near North San Juan, Calif. 

Midland Canal, diversion by..........

Mill Creek (Eel River basin) near

Covelo, Calif..................

Mill Creek (Sacramento River basin),

near Los Molinos, Calif.

614

578

550

415 

seepage investigation of............ 516

Mill Creek (Santa Ana River basin) ,

near Mentone, Calif............. 59

near Yucaipa, Calif................. 57-58

Mill Creek power canals Nos. 1,2,

and 3..........................

Miller Crossing, Calif., San Joaquin 

River at.

58

268 

Millerton Lake at Priant, Calif......291,294

Millville, Calif., Cow Creek near..... 408

South Cow Creek near................ 406

Milton, Calif., Middle Yuba River at.. 452 

Milton-Bowman tunnel at outlet,

Calif........................... 451

Mina, Calif., North Pork Eel River

near............................ 552

Mint Canyon Creek near Sangus, Calif.. 13 

Miranda, Calif., South Pork Eel River

near............................ 555

Mission Creek, below Whittier Narrows

Dam, Calif...................... 129

near Montebello, Calif.............. 128

Modesto, Calif., Tuolumne River at..... 

Modesto Canal near La Grange, Calif.... 

Mokelumne Hill, Calif.,-Esperanza 

Creek near..................

Jesus Maria Creek near..........

Mokelumne River near.

Page 

13 

13 

330 

328

355

356 

372 

Mokelumne Peak, Calif., Cold Creek

near............................367-368

Mokelumne River, at Lancha Plana,

Calif............................ 373

at Woodbridge , Calif................. 376

Licking Fork, near Railroad Plat,

Calif............................ 610

Middle Pork, at West Point, Calif.... 370

near Clements, Calif................. 374

near Mokelumne Hill, Calif........... 372

North Pork, below Salt Springs Dam, 

Calif...........................

South Pork, near Railroad Plat,

Calif.......... .................

near West Point, Calif.

Mono Creek below Lake Thomas A. Edison,

Calif.

Monrovia, Calif., Sawpit Creek near.... 

Monrovia Creek near Monrovia, Calif.... 

Monrovia municipal supply near 

Monrovia, Calif.

Monrovia storm drain at Monrovia, 

Calif.

Montebello, Calif., Mission Creek

near. 

Rio Hondo near.

Montebello storm drain at Montebello,

Calif.

Montecito, Calif., Santa Ynez River

Montgomery Creek, Calif., Pit River

Morena Dam, Calif., Cottonwood Creek

at...............................

Morena Reservoir, Calif., monthly

contents of......................

Morgan Hill, Calif., Llagas Creek

near.............................

Uvas Creek near.....................

Mowitz Creek near Scarface, Calif.

Murray Creek near San Andreas, Calif..

Murrieta Craek at Temecula, Calif.....

Nacimiento River, near Bryson, Calif., 

near San Miguel, Calif..............

Napa, Calif., Dry Creek near.

366

609

371

275

122

13

122

13

128

127

13

155

395

17

17

203

204

13

358

42

196

197

524

Napa River near St. Helena, Calif...... 522

Napa River basin, Calif., gagingstation records in..............522-524

Navarro River near Navarro, Calif...... 539

Nestor, Calif., Tia Juana River near... 22 

Newman, Calif., Merced River Slough

near............................. 312

Orestimba Creek near................. 313

San Joaquin River near............... 312

Nicolaus, Calif., Feather River at..... 470

Niles, Calif., Alameda Creek near.....225-226

Nineteenth Street storm drain at

Upland, Calif.

North Drew Canal, Oreg., diversion

byNorth Fork, Calif., Kings River above. 

Kings River below.

13

385

254

260

474

614 

Oregon Creek near.................... 454

North Shirttail Creek near Dutch Flat.,

North Fork Dam, Calif., North Pork 

American River at.

North San Juan, Calif., Middle Yuba

River near.

Calif. 473

456 

455 

527 

Noyo River near Port Bragg, Calif...... 540

North Yuba River, below Bullards Bar 

Dam, Calif.................:...

below Goodyears Bar, Calif.........

Novato Creek near Novato, Calif.

407 

407 

Oak Run Creek near Oak Run, Calif...... 407

Oakdale, Calif., Stanislaus River at... 608

Oak Run, Calif., Clover Creek near. 

Oak Run Creek near.
630 INDEX

Oakdale Canal near Knights Perry,

Calif........................... 347

Oakland Recreation Camp, Calif.,

Middle Tuolumne River at........ 324

South Pork Tuolumne River near...... 323

Oakley, Calif'., Contra Costa Canal

near............................ 383

Oceanside, Calif., San Luis Rey River

at. ............................. 40

OJai Valley, Calif.................... 146

Olancha, Calif., South Pork Kern

River near...................... 239

Olene, Oreg., diversion from Klamath

River to Lost River near........ 577

Lost River diversion canal near..... 566

O'Neill ditch near Ysidora, Calif..... 49

Ono, Calif., Middle Fork Cottonwood

Creek near...................... 409

Onyx, Calif., South Pork Kern River

near............................ 240

Order, downstream, of listing gaging

stations........................ 3

Oregon Creek, Calif., Middle Yuba

River above..................... 453

near North San Juan, Calif.......... 454

Orestimba Creek near Newman, Calif.... 313

Orick, Calif., Redwood Creek at....... 565

Orland, Calif., Stony Creek near...... 421

Oroville, Calif., Feather River near.448-449 

Oroville-Wyandot Canal, diversion to.. 432 

Otay Reservoirs, Calif., monthly

contents of...................... 24

Otay River at Savage Dam, Calif....... 24

Otay River basin, gaging-station

records in...................... 23-24

Outlet Creek near Longvale, Calif..... 547

Owens Reservoir near Planada, Calif... 13

Pacheco, Calif., Grayson Creek near... 234 

Pacheco Creek near Dunneville.

Calif........................... 202

Pacheco Creek basin, gaging-station

records in.....................228-234

Pacific Gas & Electric Co. conduit

No. 3 near Bass Lake, Calif..... 286 

Pacoima Creek near San Fernando,

Calif........................... 113

Pacoima diversion near Van Nuys,

Calif........................... 13

Pacoima Wash near Van Nuys, Calif..... 13

Pajaro River at Chittenden, Calif..... 208

Pajaro River basin Calif., gagingstation records in. ............202-209

Pala, Calif., San Luis Rey River

. near............................ 39,40

Palermo Canal at Enterprise, Calif.... 433

Palo Alto, Calif., Matadero Creek at.. 216 

Pardoe Camp, Calif., Bear River at.... 609

Pasadena, Calif., Arroyo Seco near....16,120

Eaton Creek near.................... 125

Pasadena municipal supply near

Pasadena, Calif................. 125

Paskenta, Calif., Elder Creek near.... 416

Thomes Creek at..................... 418

Paso Robles, Calif., Salinas River at. 194 

Paynes Creek near Red Bluff, Calif.... 412

Pescadero Creek near Pescadero,

Calif........................... 214

Petaluma Creek near Petaluma, Calif... 526 

Peters Canyon Wash near Santa Ana,

Calif........................... 13

Petrolia, Calif., Mattole River near.. 541 

North Fork Mattole River at......... 542

Philadelphia Canal near Strawberry,

Calif........................... 341

Phillips, Calif., Echo Lake conduit

near............................ 483

Pyramid Creek near.................. 484

Pico, Calif., San Gabriel River at.... 105

Piedra, Calif., Kings River at........16,265

Pine Flat Reservoir near............ 263

Pilot Creek near Georgetown, Calif.... 481

Pine Creek (Pacheco Creek basin) at

Concord, Calif.................. 232

Pine Creek (Sacramento River basin),

seepage investigation of........ 519

Page 

Pine Plat Dam, Calif., Kings River

below............................ 264

Pine Flat Reservoir, Calif., Big Creek

above............................ 261

near Piedra, Calif..............263,264,265

Sycamore Creek above................. 262

Piru, Calif. , Hopper Creek near........ 139

Lake Piru near....................... 137

Piru Creek, above Lake Piru, Calif..... 136

below Santa Felicia Dam, Calif....... 138

Pit No. 4 powerhouse, Calif...........392-393

Pit River, at Big Bend, Calif.......... 394

at Pall River Mills , Calif........... 611

below Pit No. 4 Dam, Calif..........392-393

near Bieber, Calif................... 390

near Canby, Calif. . .................. 389

near Montgomery Creek, Calif......... 395

South Fork, near Likely, Calif....... 388

Pitman Creek below Tamarack Creek,

Calif............................ 282

Placerita Creek near Saugus, Calif..... 13

Placerville, Calif., Silver Creek near. 491 

Pleyto, Calif., San Antonio River

at............................... 198

Plunge Creek near East Highlands,

Calif............................ 60-61

Plymouth, Calif., Cosumnes River

near............................. 380

Point Reyes station, Calif., Arroyo

Nicasio near..................... 529

Porterville , Calif., South Fork Tule

River near....................... 602

Tule River near.....................246,248

Portola, Calif., Big Grizzly Creek

near............................. 428

Post Corral Creek near Blackcap

Mountain, Calif.................. 257

Potato Creek near Yucaipa, Calif....... 13

Potter Valley, Calif., Eel River

near............................ 544,546

Lake Pillsbury near.................. 543

Potter Valley powerhouse tailrace

near............................. 545

Potter Valley powerhouse tailrace near

Potter Valley, Calif............. 545

Potwisha Camp, Calif., Marble Fork

Kaweah River at.................. 249

Pozo, Calif., Salinas Reservoir near... 191 

Salinas River near................... 189

Toro Creek near...................... 190

Prado Dam, Calif., Santa Ana River

below............................ 89,90

Prattville, Calif., Butt Creek

near....................438-439,440-441

Lake Almanor near...;................ 436

North Fork Feather River near........ 437

Publications, on streamflow by

Geological Survey................ 8-11

by State agencies.................... 11

Puddinghead diversion channel at

La Verne, Calif.................. 13

Puddingstone Creek near San Dimas,

Calif............................ 13

Putah Creek, near Davis, Calif......... 512

near Guenoc, Calif................... 509

near Winters, Calif.................. 511

Pyramid Creek near Phillips, Calif..... 484

Railroad Canyon Reservoir near

Elsinore, Calif.................. 85

Railroad Flat, Calif., Licking Pork

Mokelumne River near............. 610

South Fork Mokelumne River near...... 609

Ramona, Calif., Santa Maria Creek

near............................. 36

Santa Ysabel Creek near.............. 33

Reche Canyon Creek near Loma Linda,

Calif............................ 13

Red Bank Creek, Calif., seepage

investigation of................. 515

Red Bluff, Calif., Antelope Creek near. 414 

Paynes Creek near.........:.......... 412

Sacramento River near. ............... 413

Redding, Calif., Shasta Lake near...... 402

Redlands, Calif., San Timoteo Creek

near............................. 63
INDEX 631

Page 

Redwood Creek, at Crick, Calif........ 565

near Blue Lake , Calif............... 564

Redwood Creek basin, Calif., gagingstation records in.............564-565

Reservoirs. See Lakes and reservoirs. 

Rialto baseline storm drain near

San Bernardino, Calif........... 13

Rich Bar, Calif. , East Branch of North

Fork Feather River near......... 444

Rio Hondo, above Whittier Narrows Dam,

Calif. .......:..............."... 126

near El Monte, Calif................ 13

near Downey, Calif.................. 130

near Montebello, Calif.............. 127

Rio Hondo bypass channel near

Whittier, Calif................. 13

Ripon, Calif., Stanislaus River at.... 349

Rogers Creek near Azusa, Calif. ....... 98

Ross, Calif., Corte Madera Creek

at. ............................. 528

Rowdy Creek at Smith River, Calif..... 

Rubicon River, at Rubicon Springs, 

near Weeks Bay, Calif.

600

476 

near Georgetown, Calif.............. 478

South Fork, at mouth, near Georgetown, Calif..................... 477

Rubio Wash near San Gabriel, Calif.... 13

Runoff in inches, definition of....... 2

Russian River, at Guerneville, Calif.. 537 

East Fork, near Calpella, Calif..... 531

near Cloverdale, Calif.............. 533

near Healdsburg, Calif.............. 535

near Hopland, Calif................. 532

near Ukiah, Calif................... 530

Russian River basin, Calif., gagingstation records in.............530-537

Sacramento, Calif., American River

at. ............................. 498

Sacramento River at................. 499

Sacramento weir near................ 471

Sacramento River, at Butte City,

Calif. .......................... 423

at Colusa, Calif.................... 424

at Delta.Calif..................... 387

at Keswick, Calif................... 403

at Knights Landing, Calif........... 427

at Sacramento, Calif................ 499

at Verona, Calif.................... 471

below Wilkins Slough, Calif......... 426

near Red Bluff, Calif............... 413

Sacramento River basin, Calif.,

gaging-station records in......387-521

seepage investigations in..........513-521

Sacramento weir near Sacramento,

Calif........................... 471

St. Helena, Calif., Conn Creek near... 523 

Napa River near..................... 522

Salinas Reservoir near Pozo, Calif.... 191

Salinas River, above Pilitas Creek,

near Santa Margarita, Calif..... 192

at Paso Robles, Calif............... 194

near Bradley, Calif................. 199

near Pozo , Calif.................... 189

near Spreckels, Calif............... 201

Salinas River basin, Calif., gagingstation records in.............189-201

Salmon Falls, Calif., Weber Creek

near............................ 494

Salmon River at Somesbar, Calif....... 587

Salsipuedes Creek near Lompoc,

Calif........................... 173

Salt Creek near Elsinore , Calif....... 13

Salt Slough near Los Banos, Calif..... 301

Salt Springs Dam, Calif. , Bear River

near............................ 369

North Fork Mokelumne River below.... 366

Tiger Creek powerhouse conduit

below........................... 365

Salt Springs Reservoir near West

Point .Calif.................... 364

Salyer, Calif., South Pork Trinity

River near...................... 594

San Andreas, Calif., Calaveritas

Creek near...................... 354

Murray Creek near................... 358

San Andreas, Calif., North Fork

Calaveras River near............. 357

San Antonio Creek near............... 352

San Domingo Creek near............... 351

South Fork Calaveras River near...... 353

San Antonio Creek (San Joaquin River

basin) near San Andreas, Calif... 352 

San Antonio Creek (Santa Ana River

basin) near Claremont, Calif...13 ,87-88 

San Antonio Creek (tributary to

Pacific Ocean) near Casmalia,

Calif............................ 178

San Antonio Creek (Ventura River

basin) at Casitas Springs, Calif. 148 

San Antonio River at Pleyto, Calif..... 198

San Antonio Water Co.'s diversion near

Claremont, Calif. ................ 13

San Benito River, near Hollister,

Calif............................ 207

near Willow Creek School, Calif...... 205

San Bernardino, Calif. , Devil Canyon

Creek near....................... 69

Lytle Creek (east channel) at........ 74

Santa Ana River near................. 62

San Diego Creek near Irvine, Calif..... 53

San Diego River, at El Capitan Dam,

Calif............................ 30

near Santee, Calif................... 31

San Diego River basin, Calif., gagingstation records in............... 29-31

San Dieguito River, at Lake Hodges,

Calif............................ 37

near San Pasqual, Calif.............. 37

San Dieguito River basin, Calif.,

gaging-station records in........ 32-37

San Dimas Creek, below San Dimas Dam,

Calif............................ 100

San Dimas Wash near San Dimas, Calif... 13 

San Domingo Creek near San Andreas,

Calif............................ 351

San Fernando, Calif., Little Tujunga

Creek near....................... 117

Pacoima Creek near............. ..... 113

San Francisquito Creek at Stanford

University, Calif................ 215

San Gabriel-Azusa conduit diversion

near Azusa, Calif................ 14

San Gabriel-Azusa Duarte tunnel diversion near Azusa, Calif........... 14

San Gabriel bypass channel near

Whittier , Calif.................. 14

San Gabriel River, above Whittier

Narrows Dam, Calif............... 103

at Pico, Calif ....................... 105

at Spring Street, near Los Alamitos,

Calif............................ 106

below Santa Fe Dam, near Baldwin

Park, Calif...................... 100

East Fork, near Camp Bonita, Calif... 95 

near Azusa , Calif .................... 14,97

near El Monte, Calif................. 14

near Santa Fe Springs, Calif......... 14

West Fork, at Camp Rincon, Calif..... 96

at Cogswell Dam, Calif............. 14

San Gabriel River basin, Calif.,

gaging-station records in. .......95-111

San Jacinto River, near Elsinore,

Calif............................ 85

near Perris , Calif................... 14

near San Jacinto, Calif............14 ,83-84

San Joaquin River, above Big Creek,

Calif............................ 278

above Willow Creek, near Auberry,

Calif.......... .................. 285

at Fremont Ford Bridge, Calif........ 302

at Herndon, Calif...................604-607 ------ - - - - 268

294 

289 

296

at Miller Crossing, Calif.

below Friant, Calif..................

below Kerckhoff powerhouse, Calif....

near Biola, Calif.

near Newman, Calif................... 312

near Vernalis, Calif................. 350

North Fork, below Iron Creek, Calif.. 267 

South Fork, near Florence Lake, Calif. 272 

San Joaquin River basin, Calif. ,

gaging-station records in.......267-384
632 INDEX

Page

San Jose, Calif., Guadalupe River at.. 221 

San Jose Creek (tributary to Pacific

Ocean) near Goleta, Calif....... 154

San Jose Creek (tributary to San

Gabriel River) near Whittier,

Calif. .......................... 104

San Jose Water Works near Saratoga,

Calif........................... 222

San Juan Capistrano, Calif., Arroyo

Trabuco near.................... 52

San Juan Creek near................. 50-51

San Juan Creek near San Juan Capistrano, Calif.................... 50-51

San Juan Creek basin, Calif., gaglngstatlon records In.............. 50-52

San Lorenzo Creek at Hayward, Calif... 227 

San Lorenzo River, at Big Trees,

Calif. .......................... 211

at Santa Cruz, Calif................ 212

San Lorenzo River basin, Calif.,

gaging-station records in......211-213

San Luis Rey River, at Lake Henshaw,

near Mesa Grande, Calif ......... 39

at Monserate Narrows, near Pala,

Calif........................... 40

at Oceanslde, Calif................. 40

below Pala diversion dam, near

Pala, Calif..................... 39

near Bonsall, Calif................. 40

West Pork,near Warner Springs,

Calif............................ 38

San Luis Rey River basin, Calif.,

gaging-station records In....... 38-40

San Miguel, Calif., Naoimiento River

near. ........................... 197

San Pasqual, Calif., Guejito Creek

near............................ 35

San Diegulto River near............. 37

Santa Ysabel Creek near............. 34

San Ramon Creek, at San Ramon, Calif.. 228 

at Walnut Creek, Calif.............. 229

San Simeon, Calif., Arroyo de la Cruz

near........................."... 187

San Tlmoteo Creek, near Loma Linda,

Calif........................... 64

near Redlands, Calif................ 63

Sand Meadows, Calif., Helms Creek at.. 258 

Santa Agueda Creek near Santa Ynez,

Calif........................... 163

Santa Ana, Calif. , Santa Ana River

at.............................. 94

Santiago Creek at................... 93

Santa Ana-Delhi drain near Costa

Mesa, Calif..................... 14

Santa Ana River, at Auburndale Bridge,

near Corona, Calif.............. 81

at county line, below Prado Dam,

Calif........................... 90

at Hamner Avenue, near Corona,

Calif........................... 80

at Riverside Narrows, near

Arlington, Calif................ 77

at Santa Ana, Calif................. 94

below Prado Dam, Calif.............. 89

near Arlington, Calif............... 77

near Mentone, Calif................. 55-56

near Olive, Calif................... 14

near San Bernardino, Calif......'.... 62

Santa Ana River basin, Calif., gagingstation records in.............. 54-94

Santa Anita Creek, near Arcadia, i 

Calif... ........................ 14

near Sierra Madre , Calif............ 123

Santa Barbara, Calif., Santa Ynez River

near...........................156,157

Santa Clara River, at Lang, Calif..... 14

at Los Angeles-Ventura County line,

Calif........................... 135

near Montalvo , Calif................ 14

near Saugus, Calif.................. 14

Santa Clara River basin, Calif.,

gaging-station records in......135-143

Santa Cruz, Calif., Branciforte Creek

at.............................. 213

San Lorenzo River at................ 212

Santa Cruz Creek near Santa Ynez,

Calif........................... 159

Page 

Santa Pe Channel below Santa Pe Dam,

Calif............................ 14

Santa Felicia Dam, Calif., Piru Creek

below............................ 138

Santa Margarita, Calif., Sallnas

River near....................... 192

Santa Margarita River, at Ysidora",

Calif............................ 49

near Pallbrook, Calif................ 44

near Temeculai, Calif................. 43

Santa Margarita River basin, Calif.,

gaging-station records in........ 41-49

Santa Maria, Calif., Alamo Creek near.. 181 

Cuyama River near.................... 180

Huasna River near..................... 182

Santa Maria Creek near Ramona, Calif... 36 

Santa Maria River at Guadalupe,

Calif............................ 185

Santa Maria River basin, Calif. ,

gaging-station records in.......179-185

Santa Paula Creek near Santa Paula,

Calif............................ 143

Santa Ynez, Calif., Cachuma Creek

near............................. 160

Cachuma Reservoir near............... 161

Santa Agueda Creek near.............. 163

Santa Cruz Creek near................ 159

Santa Ynez River near...........158,162,165

Zanja Cota near...................... 164

Santa Ynez River, above Gibraltar Dam,

near Santa Barbara , Calif ........ 156

at barrier, near Surf, Calif......... 177

at Buellton, Calif................... 167

at Cooper's-Reef, near Lompoc ,

Calif............................ 171

at Grand Avenue, near Santa Ynez,

Calif................ ............ 165

at H Street, near Lompoc, Calif...... 176

at Jameson Lake, near Montecito,

Calif............................ 155

at narrows, near Lompoc, Calif....... 174

at Santa Rosa Dam site, near

Buellton, Calif.................. 170

at Solvang, Calif.................... 166

at Thirteenth Street, near Lompoc,

Calif............................ 176

below Gibraltar Dam, near Santa

Barbara, Calif................... 157

below Los Laureles Canyon, near

Santa Ynez, Calif................ 158

below Santa Rita Creek, near Lompoc,

Calif............................ 172

near Buellton, Calif................. 169

near Lompoc, Calif................... 175

near Santa Ynez, Calif. .............. 162

Santa Ynez River basin, Calif., gagingstation records in..............155-177

Santa Ysabel Creek, at Sutherland Dam,

Calif............................ 32

near Ramona, Calif................... 33

near San Pasqual, Calif.............. 34

Santee, Calif., San Diego River near... 31 

Santiago Creek, at Santa Ana, Calif.... 93

at Santiago Dam, near Villa Park,

Calif............................ 91

near Little Rock, Calif.............. 14

near Villa Park, Calif............... 92

Santiago Reservoir, Calif., contents

of............................... 91

Saratoga Creek at Saratoga, Calif...... 222

Savage Dam, Calif., Otay River at...... 24

Sawpit Creek near Monrovia, Calif......14,122

Sawtelle-Westwood Channel near Culver

City, Calif...................... 14

Scotia, Calif. , Eel River at........... 556

Scott River near Fort Jones, Calif..... 583

Seepage investigation, of Antelope

Creek, Calif..................... 516

Big Chico Creek, Calif............... 520

Lindo Channel of................... 520

Cache Creek, Calif................... 521

Clear Creek, Calif................... 513

Cottonwood Creek, Calif............. 514

Deer Creek, Calif.................... 519

Elder Creek, Calif................... 517

Mill Creek, Calif.................... 516

Pine Creek, Calif .................... 519
INDEX 633

Seepage investigation, of Red Bank

Creek, Calif.................... 515

Thomes Creek, Calif................. 518

Selad Valley, Calif., Klamath River

near............................ 584

Sepulveda Dam, Calif., Los Angeles

River at........................ 112

Sespe Creek, near Fillmore, Calif... .141-142

near Sespe Hot Springs, Calif....... 14

near Wheeler Springs , Calif......... 140

Shasta Lake, Calif., McCloud River

above........................... 401

near Redding, Calif................402,403

Squaw Creek above ................... 396

Shasta River near Yreka, Calif ........ 582

Shaver Lake near Big Creek, Calif..... 284

Sierra Madre, Calif., Little Santa

Anita Creek near................ 124

Santa Anita Creek near.............. 123

Sierra Madre Wash at Sierra Madre,

Calif.... ....................... 14

Silver Creek, Calif., North Fork

Stanislaus River below .......... 337

Silver Creek, at Union Valley, Calif.. 489 

near Placerville, Calif............. 491

South Fork, near Ice House, Calif... 490 

Silver Lake Outlet near Kirkwood,

Calif........................... 485

Sisquoc, Calif., La Brea Creek

near............................ 184

Sisquoc River near.................. 183

Tepusquet Creek near ................ 184

Sisquoc River, near Gary, Calif....... 185

near Sisquoc, Calif................. 183

Sloat, Calif., Middle Fork Feather

River below..................... 430

Smartville, Calif., Deer Creek near... 463 

Yuba River at....................... 614

Smith River, Calif., Rowdy Creek at... 600 

Smith River, near Crescent City,

Calif. .......................... 599

South Fork, near Crescent City,

Calif........................... 598

Smith River basin, Calif., gagingstation records in.............598-600

Soledad, Calif., Arroyo Seco near.. 

Solvang, Calif., Santa Ynez River at.. 

Somerset, Calif., Camp Creek near.....

Somesbar, Calif., Klamath River at....

Salmon River at.....................

Sonoma Creek at Boyes Hot Springs,

Calif.. .........................

Sequel Creek at Soquel, Calif.........

South Cow Creek near Millville,

Calif.. .........................

South Diversion Canal near Orland,

Calif...........................

South Honcut Creek near Bangor, Calif. 

South San Joaquin Canal near Knights

Ferry, Calif....................

South Yuba River, near Cisco, Calif....

near Washington, Calif..............

Southern California Edison Co.'s

canal, below powerplant No. 2... 

near Azusa, Calif., contents of..... 

Southern California Edison Co.'s

conduit near Claremont, Calif... 

Spanish Creek above Blackhawk Creek

at Keddie, Calif................

Spicer Meadows Reservoir, Calif.,

Highland Creek below............

Sprague River, near Beatty, Oreg......

near Chiloquin, Oreg................

Spreckels, Calif., Salinas River

near............................

Springville, Calif., North Fork of

Middle Fork Tule River near..... 

Squaw Creek above Shasta Lake, Calif.. 

Stage-discharge relation, definition

of..............................

Stanford University, Calif., San

Francisquito Creek at...........

Stanislaus River, at Oakdale , Calif... 

at Ripen, Calif.....................

below Goodwin Dam, near Knights

Ferry, Calif. ...................

200

166

378

588

587

525

210

406

421

450

346

457

461

55

97

87-88 

443

338

570

571

245

396

215

608

349

348

Stanislaus River, below Melones powerhouse , Calif.....................

Clark Fork, near Dardanelle, Calif... 

Middle Fork, at Hells Half Acre

Bridge, Calif....................

at Kennedy Meadows, Calif..........

at Sand Bar Flat, near Avery,

Calif. ...........................

below Beardsley Dam, Calif.........

North Fork, below Silver Creek,

Calif. ...........................

near Avery, Calif..................

South Fork, at Strawberry, Calif.....

near Long Barn, Calif..............

Stevens Creek near Cupertino, Calif....

Stevinson, Calif., Merced River near... 

Stony Creek, above Stony Gorge

Reservoir, near Elk Creek, Calif, 

at Black Butte Dam site, near

Orland, Calif. ...................

near Hamilton City, Calif............

Storrie, Calif., Grizzly Creek near....

Strawberry, Calif., Lake Hartley

near.............................

Philadelphia Canal near..............

South Fork Stanislaus River at.......

Success, Calif., South Fork Tule

River near.......................

Sunland, Calif., Tujunga Creek near....

Sur River at Big Sur, Calif............

Surf, Calif., Santa Ynez River near....

Sutherland Dam, Calif., Santa Ysabel

Creek at.........................

Sutherland Reservoir, Calif., contents 

of...............................

Sutter Creek at Sutter Creek, Calif....

Sweetwater Dam, Calif., Sweetwater

River at.........................

Sweetwater Reservoir, Calif., monthly 

contents of......................

Sweetwater River, at Loveland Dam,

near Alpine , Calif ...............

at Sweetwater Dam, Calif.............

near Descanso, Calif .................

Sweetwater River basin, Calif.,

gaging-station records in........

Sycamore Canyon Channel at Glendale,

Calif.................... ........

Sycamore Creek above Pine Flat Reservoir, Calif......................

Tamarack Creek, Calif., Pitman Creek

below............................

Temecula, Calif., Murrieta Creek at.... 

Santa Margarita River near...........

Temecula Creek at Vail Dam, Calif......

Temescal Creek near Corona, Calif......

Temescal Water Co., Calif..............

Templeton, Calif., Jack Creek near.....

Tenaya Creek near Yosemite, Calif......

Tennant, Calif., Antelope Creek near...

Tepusquet Creek near Sisquoc, Calif....

Terras and abbreviations, definition

of....... ........................

Thomas Creek near Lakeview, Oreg.......

Thomes Creek, at Paskenta, Calif.......

seepage investigation of.............

Thompson Creek near Claremont, Calif...

Thompson Creek spreading ground intake 

near Claremont, Calif ............

Three Rivers, Calif., Kaweah River

near.............................

South Fork Kaweah River near. ........

Tia Juana River, near Dulzura, Calif... 

near Nestor, Calif...................

Tia Juana River basin, Calif., gagingstation records in...............

Tiger Creek powerhouse ccnduit below

Salt Springs Dam, Calif..........

Timber Creek near San Bernardino,

Calif.......... ..................

Topanga Creek near Topanga Beach,

Calif............................

Toro Creek near Pozo, Calif............

Town Creek near San Bernardino,

Calif... .........................

Page

345

332

333

331

336

335

337

339

340

343

217

311

611

421

422

612

334

341

340

247

115

188

177

32

32

610

28

28

27

28 

25-26

25-28

14

262

282

42

43

41

86

85

193

304

567

184

2

14

418

518

14

14

251

602

21

22

17-22

365

14

133

190

14
634 INDEX

Page 

Tracy, Calif., Delta-Mendota Canal

near............................ 363

Tres Plnos Creek near Tres Pinos,

Calif........................... 206

Trinity River, at Lewiston, Calif.....16 ,589

near Burnt Ranch, Calif............. 590

near Hoopa, Calif................... 595

South Fork, near Hyampom, Calif..... 591

near Salyer, Calif................ 594

Tujunga, Calif., Haines Creek near.... 116

Tujunga Creek, below Hansen Dam,

Calif........................... 118

below Mill Creek, near Colby Ranch,

Calif........................... 114

near Sunland, Calif................. 115

Tujunga Wash, at Studio City,

Calif.......................... . 14

central branch, at North Hollywood,

Calif........................... 14

Tulare Lake in Kings County, Calif.... 244

Tulare Lake basin, Calif., gagingstation records in.............244-266

Tule River, at Worth Bridge, near

Porterville, Calif.............. 248

near Porterville, Calif............. 246

North Fork of Middle Fork, near

Springville.Calif.............. 245

South Fork, near Porterville,

Calif........................... 602

near Success, Calif............... 247

Tuolumne Canal near Long Barn, Calif.. 342 

Tuolumne River, above La Grange Dam,

near La Grange , Calif............ 327

at Modesto, Calif................... 330

near Hetch Hetchy, Calif............ 316

South Fork, near Oakland Recreation

Camp, Calif..................... 323

Turlock Canal near La Grange, Calif... 329 

Twin Creek near Del Rosa, Calif....... 14

Twin Lakes Outlet near Kirkwood,

Calif........................

Ukiah, Calif. , Russian River near..... 

Union Valley, Calif., Silver Creek

at..............................

Upland, Calif., Cucamonga Creek near.. 

Upper Klamath Lake near Klamath Falls,

Oreg............................

Uvas Creek near Morgan Hill, Calif....

486

530

489

82

575

204

Vail Dam, Calif., Temecula Creek at... 41 

Vail Lake, Calif., monthly contents of. 41 

Valley Springs, Calif., Cosgrove Creek

near............................ 359

Van Duzen River, near Dinsmores,

 Calif........................... 557

near Bridgeville, Calif............. 558

Ventucopa, Calif., Cuyama River near.. 179 

Ventura, Calif., Coyote Creek near.... 149

Ventura River near.................150-151

Ventura River near Ventura,

Calif......................146,150-151

Ventura River basin, Calif., gagingstation records in.............144-151

Verdugo channel at Glendale,

Calif........................... 14

Vernalis, Calif., San Joaquin River

near............................ 350

Verona, Calif., Sacramento River at... 471 

Villa Park, Calif., Santiago Creek

near.........i.................. 91,92

Villa Park storm drain at Villa

Park, Calif. .................... 14

Vina, Calif., Deer Creek near......... 419

Virginia Ranch, Calif., Dry Creek

Page 

Walnut Creek (San Gabriel River basin)

at Baldwin Park, Calif........... 14

Ward tunnel, at intake , Calif.......... 271

at outlet, Calif ..................... 279

Warm Creek, near Colton, Calif......... 75-76

near San Bernardino, Calif........... 14

Warner Springs, Calif., West Fork San

Luis Rey River near.............. 38

Washington, Calif., South Yuba River

near............................. 461

Waterman Canyon Creek near Arrowhead

Springs, Calif................... 66

Weber Creek near Salmon Falls, Calif... 494 

West Anaheim storm drain at Anaheim,

Calif.................. .......... 14

West Point, Calif., Middle Fork

Mokelumne River at............... 370

Salt Springs Reservoir near.......... 364

South Fork Mokelumne River near...... 371

Wheatland, Calif., Bear River near..... 468

Dry Creek near....................... 469

Wheeler Springs, Calif., Sespe Creek

near............................. 140

White Hall, Calif., Alder Creek

near............................. 488

Whittier, Calif., San Jose Creek near.. 104 

Whittier Narrows Dam, Calif., Mission

Creek below...................... 129

Rio Hondo above ...................... 126

San Gabriel River above.............. 103

Wildwood Creek near Yucaipa, Calif..... 14

Wilkins Slough, Calif., Sacramento

River below...................... 426

Williamson River, below Sprague River,

near Chiloquin, Oreg............. 572

near Klamath Agency, Oreg............ 569

Willow Creek, at mouth, near Auberry,

Calif..:......................... 288

near Clear Lake, Calif............... 14

North Fork, near Bass Lake,

Calif............................ 287

Willow Creek School, Calif.., San Benito

River near....................... 205

Wilson Creek near Yucaipa,

Calif............................ 14

Winters, Calif., Lake Berryessa

near............................. 510

Putah Creek near..................... 511

Woodbridge, Calif. , Mokelumne River

at .............................. 376

Woodbridge Canal at.................. 375

Woodbridge Canal at Woodbridge,

Calif............................ 375

Woodland, Calif., Yolo bypass near..... 508

Woods Creek near Jacksonville,

Calif............................ 325

Work, division of...................... 2

scope of............................. 1

Yager Creek near Carlotta ,

Calif............................ 559

Yankee Hill, Calif., Concow Creek

near............................. 613

West Branch Feather River near....... 447

Yolo, Calif., Cache Creek at........... 507

Yolo bypass near Woodland, Calif....... 508

Yorba Linda, Calif., Carbon Creek

near............................. Ill

Yosemite, Calif., Merced River

near............................303,305

at.

WSP, definition of.....................

Walnut Avenue storm drain near Orange,

Calif...........................

Walnut Creek, Calif., San Ramon Creek

at..............................

Walnut Creek at......................

Walnut Creek (Pacheco Creek hasin)

at Walnut Creek, Calif..........

465

2

14

229

230

230

Tenaya Creek near 

Ysidora, Calif., O'Neill ditch 

near....................

Santa Margarita River at

304

.... 49 

_ __ __ o_____ .._.__ ................ 49

Yreka, Calif., Shasta River near....... 582

Yuba River, at Englebright Dam,

Calif. 462 

at Marysville, Calif ................. 466

at Smartville, Calif................. 614

Yucaipa, Calif., Mill Creek near....... 57-58

Yucaipa Creek tributary near Yucaipa,

Calif............................ 14

Zanja Cota Creek near Santa Ynez, 

Calif....................... 164

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