Surface Water Supply 

of the United States 

1951

Part 11. Pacific Slope Basins in California

Prepared under the direction of C. G. PAULSEN, Chief Hydraulic Engineer 

GEOLOGICAL SURVEY WATER-SUPPLY PAPER 1215

Prepared in cooperation with the States 

of California and Oregon and other 

agencies

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1953
UNITED STATES DEPARTMENT OF THE INTERIOR 

Douglas McKay, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

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

Washington 25, D. C. - Price $1.50 (paper cover)
PREFACE

This report was prepared by the Geological Survey in cooperation 

with the States of California and Oregon and other agencies by personnel of the Water Resources Division under the direction of:

C. G. Paulsen. __________________________ .Chief Hydraulic Engineer

J. V. B. Wells__----____---________.__Chief, Surface Water Branch

B. J. Peterson________________________Chief, Annual Reports Section

DISTRICT ENGINEERS (SURFACE WATER)

R. C. Briggs______-______-_______-_____-._____San Francisco, Calif.

K. N. Philips_-------_--_------------_---_-_----_-_Portland, Oreg.
CONTENTS

Scope of work........................................................................ I

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

Division of work..................................................................... 1

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

New downstream order of listing gaging stations...................................... 2

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.......... 11

Hydrologic conditions................................................................ 14

Gaging-station records............................................................... 16

Tia Juana River basin:

UcFFtonwood ureeK (head of Tia Juana River) at Morena Dam, Calif,................... 16

Dulzura conduit near Dulzura, Calif.............................................. 17

Cottonwood Creek above Tecate Creek, near Dulzura, Calif........................... 18

Tecate Creek:

Campo Creek near Campo, Calif.................................................. 19

Tia Juana River near Dulzura, Calif................................................ 20

Tia Juana River near Nestor, Calif................................................. 20

Otay River basin:

jamiu ureeK (head of Otay River) near Jamul, Calif......................... ....... 21

Sweetwater River basin:

Sweetwater Kiver at Loveland Dam, near Alpine, Calif............................... 22

Sweetwater River at Sweetwater Dam, Calif.......................................... 23

San Diego River basin:

San iliego Kiver:

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif.......................... 24

San Diego River at El Capitan Dam, Calif........................................... 25

San Vicente Creek at San Vicente Dam, at Foster, Calif............................ 26

San.Diego River near Santee , Calif................................................. 27

San Dieguito River basin:

Santa isacei ureeK (neaa of San Dieguito River) near Mesa Grande, Calif............ 28

Santa Ysabel Creek near Ramona, Calif.............................................. 29

Santa Ysabel Creek near San Pasqual, Calif......................................... 30

Guejito Creek at San Pasqual, Calif.............................................. 32

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

San Dieguito River near San Pasqual, Calif......................................... 33

San.Dieguito River at Lake Hodges, Calif........................................... 34

San Luis Rey River basin:

'San LUIS Rey Kiver at Lake Henshaw, near Mesa Grande, Calif........................ 35

San Luis Rey River below Pala diversion dam, near pala, Calif...................... 36

San Luis Rey River at Monserate Narrows, near Pala, Calif.......................... 37

San Luis Rey River near Bonsall, Calif............................................. 38

San Luis Rey River at Oceanside, Calif............................................. 38

Santa Margarita River basin:

 remecuia ureek (neaa of Santa Margarita River) at Nigger Canyon, near Temecula, Calif. 39

Murrie'ta Creek at Temecula, Calif................................................ 40

Temecula Creek at Railroad Canyon, near Temecula, Calif............................ 41

Santa Margarita River near Fallbrook, Calif........................................ 42

O'Neill ditch near Ysidora, Calif................................................ 43

Santa Margarita River at Ysidora, Calif............................................ 43

San Juan Creek basin:

S5n Ju5n Week near San Juan Capistrano, Calif..................................... 44

Trabuco Creek near San Juan Capistrano, Calif.................................... 45

Aliso Creek basin:

AJ.ISO ureelc at ill Toro, Calif...................................................... 46

Peters Canyon Wash basin: 

meters canyon wasn:

San Diego Creek near Irvine, Calif............................................... 46

Santa Ana River basin: 

santa "Sna Kiver:

Bear Creek:

Big Bear Lake near Big Bear Lake, Calif.......................................... 47

Santa Ana River near Mentone, Calif................................................ 48

Mill Creek near Craftonville, Calif.............................................. 50

Mill Creek near Mentone, Calif................................................... 52

Plunge Creek near East Highlands, Calif.......................................... 53

San Timoteo Creek:

Little San Gorgonio Creek near Beaumont, Calif................................. 55

San Timoteo Creek near Redlands, Calif........................................... 56

Santa Ana River at E Street Bridge, near San Bernardino, Calif..................... 57

Warm Creek:

Strawberry Creek near Arrowhead Springs, Calif................................. 58

Waterman Canyon Creek near Arrowhead Springs, Calif............................ 59

City Creek near Highland, Calif................................................ 60

Devil Canyon Creek near San Bernardino, Calif.................................. 61

V
VI CONTENTS

Gaging-station records Continued. 

Santa Ana River basin Continued.

Warm Creek Continued. Page 

Lytle Creek near Fontana, Calif................................................ 62

Cajon Creek near Keenbrook, Calif............................................ 64

Lone Pine Creek near Keenbrook, Calif...................................... 65

Lytle Creek (east channel) at San Bernardino, Calif............................ 66

Santa Ana River at Riverside Narrows, near Arlington, Calif........................ 69

Day Creek near Etiwanda, Calif................................................... 70

Santa Ana River at Hamner Avenue, near Corona, Calif............................... 72

Santa Ana River at Auburndale Bridge, near Corona, Calif........................... 73

Cucamonga Creek near Upland, Calif............................................... 74

San Jacinto River near San Jaointo, Calif........................................ 75

Bautista Creek near Hemet, Calif............................................... 77

San Jacinto River near Elsinore, Calif........................................... 78

Elsinore Lake at Elsinore, Calif

Temescal Creek near Corona, Calif

San Antonio Creek near Claremont, Calif........................................ 79

Santa Ana River below prado Dam, Calif............................................. 81

Santa Ana River at county line, below Prado Dam, Calif............................. 82

Santiago Creek at Santiago Dam, near Villa Park, Calif........................... 83

Santiago Creek near Villa Park, Calif............................................ 84

Santiago Creek at Santa Ana, Calif............................................... 85

Santa Ana River at Santa Ana, Calif................................................ 86

San Gabriel River basin:

East yoric san uaonei Kiver near Camp Bonita, Calif................................ 87

West Fork San Gabriel River at Camp Rincon, Calif................................ 88

San Gabriel River near Azusa, Calif................................................ 89

Rogers Creek near Azusa, Calif................................................... 90

Fish Creek near Duarte, Calif.................................................... 91

San Gabriel River below Santa Fe Dam, near Baldwin Park, Calif..................... 92

Walnut Creek:

San Dimas Creek near San Dimas, Calif.......................................... 93

Dalton Creek near Glendora, Calif.............................................. 94

Little Dalton Creek near Glendora, Calif..................................... 95

San Jose Creek near Whittier, Calif............................................ 96

San Gabriel River at Pico, Calif................................................... 97

San Gabriel River at Spring Street, near Los Alamitos, Calif....................... 97

Coyote Creek:

Brea Creek below Brea Dam, near Fullerton, Calif............................... 98

Brea Creek at Fullerton, Calif. ..............1................................. 99

Fullerton Creek below Fullerton Dam, near Brea, Calif........................ 99

Fullerton Creek at Fullerton, Calif.......................................... 100

Coyote Creek near Artesia, Calif................................................. 101

Carbon Creek near Yorba Linda, Calif........................................... 101

Los Angeles River basin:

Los Angeles Kiver at sepulveda Dam, Calif........................................... 102

Pacoima Creek near San Fernando, Calif........................................... 103

Tujunga Creek below Mill Creek, near Colby Ranch, Calif.......................... 104

Tujunga Creek near Sunland, Calif................................................ 107

Haines Creek near Tujunga, Calif............................................... 108

Little Tujunga Creek near San Fernando, Calif.................................. 109

Tujunga Creek below Hansen Dam, Calif............................................. 109

Los Angeles River at Los Angeles, Calif............................................ 110

Arroyo Seco near Pasadena, Calif................................................. Ill

Los Angeles River near Downey, Calif............................................... 112

Rio Hondo:

Sawpit' Creek near Monrovia, Calif.............................................. 113

Santa Anita Creek near Sierra Madre, Calif..................................... 114

Little Santa Anita Creek near Sierra Madre, Calif............................ 115

Eaton Creek near Pasadena, Calif............................................... 116

Rio Hondo near Montebello, Calif................................................. 117

Mission Creek near Montebello, Calif........................................... 118

Rio Hondo near Downey, Calif..................................................... 119

Los Angeles River at Long Beach, Calif............................................. 120

Ballona Creek basin:

hianona ureeK near Culver City, Calif. ............................................. 121

Topanga Creek basin:

Topanga ureek near Topanga Beach, Calif............................................ 122

Malibu Creek basin:

raiiDu ureeK at urater Camp, near Calabasas, Calif................................. 123

Santa Clara River basin:

santa uiara Kiver near Saugus, Calif............................................... 124

Piru Creek near Piru, Calif...................................................... 125

Hopper Creek near Piru, Calif.................................................... 126

Sespe Creek near Wheeler Springs, Calif.......................................... 127

Fillmore Irrigation Co. 's canal near Fillmore, Calif........................... 128

Sespe Creek near Fillmore, Calif................................................. 129

Santa Paula Creek near Santa Paula, Calif........................................ 130

Ventura River basin:

Matilija ureeK (nead of Ventura River) above reservoir, near Matilija, Calif....... 131

Matilija Reservoir at Matilija, Calif............................................... 132
CONTENTS VII

Gaging-station records Continued.

Ventura River basin Continued. Page 

Matilija Creek at Matilija, Calif.................................................. 133

North Fork Matilija Creek at Matilija, Calif..................................... 134

Ventura River:

Coyote Creek near Ventura, Calif................................................. 135

Ventura River near Ventura, Calif.................................................. 136

Carpinterla Creek basin:

uarpinteria creeK near Carpinteria, Calif.......................................... 137

Ataseadero Creek basin:

Atascaaero ureetc near Goleta, Calif................................................ 138

San Jose Creek basin:

San Jose" Creel? near Goleta, Calif.................................................. 139

Santa Ynez River basin:

Santa Inez Kiver at jameson Lake, near Montecito, Calif............................ 140

Santa Ynez River above Gibraltar Dam, near Santa Barbara, Calif.................... 141

Santa Ynez River below Gibraltar Dam, near Santa Barbara, Calif.................... 142

Santa Ynez River below Los Laureles Canyon, near Santa Ynez, Calif................. 144

Santa Cruz Creek above Stuke Canyon, near Santa Ynez, Calif...................... 145

Santa Cruz Creek near Santa Ynez, Calif.......................................... 146

Cachuma Creek near Santa Ynez, Calif............................................. 147

Santa Ynez River near Santa Ynez, Calif............................................ 147

Santa Agueda Creek near Santa Ynez, Calif........................................ 148

Santa Ynez River at Solvang, Calif................................................. 149

La Zaca Creek at Buellton, Calif................................................. 150

Santa Ynez River near Buellton, Calif.............................................. 151

Salsipuedes Creek near Lompoc, Calif............................................. 152

Santa Ynez River at narrows , near Lompoc, Calif.................................... 153

Santa Ynez River near Lompoc, Calif................................................ 153

Santa Ynez River at H Street, near Lompoc, Calif................................... 154

Santa Ynez River at barrier, near Surf, Calif...................................... 154

San Antonio Creek basin:

san Antonio ureetc at Harris, Calif................................................. 155

Santa Maria River basin:

uuyama Kiver (nead or santa Maria River) near Ventucopa, Galif..................... 155

Guyana River near Santa Maria, Calif............................................... 156

Alamo Creek near Santa Maria, Calif.............................................. 157

Huasna River near Santa Maria, Calif............................................. 158

Sisquoc River near Sisquoc , Calif................................................ 159

La Brea Creek near Sisquoc, Calif.............................................. 160

Tepusquet Creek near Sisquoc, Calif............................................ 161

Sisquoc River near Garey, Calif.................................................. 161

Santa Maria River at Guadalupe, Calif.............................................. 162

Arroyo Grande basin:

Arroyo uranae at Arroyo Grande, Calif.............................................. 163

Arroyo de la Cruz basin:

Arroyo 3e la Cruz near San Simeon, Calif................................... f....... 164

Salinas River basin:

saunas' Kiver near fozo, Calif..................................................... 165

 Toro Creek near Pozo, Calif...................................................... 166

Salinas Reservoir near Pozo, Calif................................................. 167

Salinas River above Pilitas Oreek, near Santa Margarlta, Calif..................... 168

Jack Creek near Templeton, Calif................................................. 169

Salinas River at Paso Robles, Calif................................................ 170

Nacimiento River near San Miguel, Calif.......................................... 171

San Antonio River at Pleyto, Calif............................................... 172

Salinas River near Bradley, Calif.................................................. 173

Arroyo Seco near Soledad, Calif.................................................. 174

Salinas River near Spreckels, Calif................................................ 175

Pajaro River basin: 

rajaro Kiver:

Pacheco Creek near Dunneville, Calif......................................~....... 176

Carnadero Creek:

Uvas Creek near Morgan Hill, Calif............................................. 1?.

San Benito River below McCoy Creek, near Hernandez, Calif........................ 178

San Benito River near Willow Creek School, Calif................................. 180

Tres Pinos Creek near Tres Pinos, Calif........................................ 181

San Benito River near Hollister, Calif........................................... 182

Pajaro River near Chittenden, Calif................................................ 183

San Lorenzo River basin:

San Lorenzo Kiver at big Trees, Calif.............................................. 184

Pescadero Creek basin:

rescaaero ureetc near fescadero, Calif.............................................. 185

San Franeisqulto Creek basin:

San Krancasquito ureeK at Stanford University, Calif............................... 186

Stevens Creek basin:

SteveHS C'reek near Cupertino, Cal if................................................ 187

Guadalupe River basin: 

u-uaaaiupe Kiver:

Alamitos Creek near Edenvale, Calif.............................................. 188

Los Capitancillos Creek at Guadalupe, Calif...................................... 189

Los Gatos Creek below Los Gatos, Calif,.......................................... 190

Guadalupe River at San Jose, Calif................................................. 191

Campbell Creek at Saratoga, Calif................................................ 192
VIII CONTENTS

Gaging-station records Continued. Page

Coyote Creek basin:

Coyote Creek near Madrone, Calif............................................ ...... 193

Coyote Creek near Edenvale, Calif.................................................. 194

Alameda Creek basin:

Alameda Creek near Miles, Calif.................................................... 195

San Lorenzo Creek basin:

San Lorenzo Creek at Hayward, Calif................................................ 196

Kern River basin:

Kern River:

Kern River No. 3 canal near-Kernville, Calif..................................... 197

Kern River near Kernville, Calif................................................... 198

Borel Canal at Tillie Creek, Calif............................................... 200

South Fork Kern River near Onyx, Calif........................................... 201

South Fork Kern River at Isabella, Calif......................................... 202

Kern River below Isabella dam site, Calif.......................................... 203

Kern River No. 1 conduit near Democrat Springs, Calif............................ 204

Kern River near Democrat Springs, Calif............................................ 206

Kern River near Bakersfield, Calif. ................................................ 208

Tulare Lake basin:

Tuiare EaKe in Kings County, Calif................................................. 209

White River near Ducor, Calif.................................................... 210

Middle Fork Tule River:

North Fork of Middle Fork Tule River:

Pacific Gas & Electric Co. conduit near Springville, Calif................... 211

North Fork of Middle Fork Tule River near Springville, Calif. .................. 212

Tule River near Porterville, Calif. ................................................ 213

South Fork Tule River near Success, Calif........................................ 214

Middle Fork Kaweah River:

Middle Fork Kaweah River No. 3 conduit near Potwisha Camp, Calif.................. 215

Middle Fork Kaweah River near Potwisha Camp, Calif................................. 218

Marble Fork Kaweah River:

Marble Fork Kaweah River No. 3 conduit at Potwisha Camp, Calif.................. 220

Marble Fork Kaweah River at Potwisha Camp, Calif................................. 223

North Fork Kaweah River at Kaweah, Calif......................................... 225

Kaweah River near Three Rivers, Calif............................................ 226

Sand Creek near Orange Cove, Calif............................................... 227

South Fork Kings River near Cedar Grove, Calif................................... 228

Kings River above North Fork, Calif.............................................. 229

North Fork Kings River near Cliff-Camp, Calif.................................. 230

Kings River at Piedra, Calif..................................................... 231

Los Gatos Creek above Nunez Canyon, near Coalinga, Calif......................... 232

San Joaquin River basin:

South Fork San Joaquin River:

Florence Lake near Big Creek, Calif................................................ 233

Ward tunnel at intake, Calif..................................................... 234

South ForkTSan Joaquin River near Florence Lake, Calif............................. 235

Bear Creek near Vermilion Valley, Calif.......................................... 236

Mono Creek near Vermilion Valley, Calif.......................................... 237

San Joaquin River above Big Creek, Calif........................................... 238

Big Creek:

Ward tunnel at outlet, Calif.................................................... 239

Huntington Lake near Big Creek, Calif............................................ 240

Big Creek below Huntington Lake, Calif........................................... 241

Pitman Creek below Tamarack Creek, Calif....................................... 242

Stevinson Creek:

Huntington-Shaver conduit at outlet, Calif..................................... 243

Shaver Lake near Big Creek, Calif................................................ 244

North Fork Willow Creek:

Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif.... 245

North Fork Willow Creek below Crane Valley Reservoir, Calif...................... 246

San Joaquin River below Kerckhoff powerhouse, Calif................................ 247

Big Sandy Creek near Auberry, Calif.............................................. 248

Fine Gold Creek near Friant, Calif............................................... 249

Millerton Lake at Friant, Calif.................................................. 250

Madera"Canal near Friant, Calif................................................ 251

Friant-Kern Canal at Friant, Calif............................................. 252

Cottonwood Creek near Friant, Calif............................................ 253

San Joaquin River below Friant, Calif.. .......................................... 254

Little Dry Creek near Friant, Calif.............................................. 255

James bypass near San Joaquin, Calif............................................. 256

San Joaquin River near Mendota, Calif.............................................. 257

Panoche Creek below Silver Cree k, near Panoche, Calif........................... 258

San Joaquin River near Dos Palos, Calif............................................ 259

Fresno River near Knowles, Calif................................................. 260

Fresno River near Daulton, Calif. ................................................ 261

Chowchilla River at Buchanan dam site, Calif..................................... 262

Salt Slough near Los Banos, Calif................................................ 263

San Joaquin River at Fremont Ford Bridge, Calif.................................... 264

Los Banos Creek:

San Luis Creek near Los Banos, Calif........................................... 265

Merced River at Happy Isles Bridge, near Yosemite, Calif......................... 266

Tenaya Creek near Yosemite, Calif.............................................. 267

Merced River at Pohono Bridge, near Yosemite, Calif.............................. 268

South Fork Merced River near El Portal, Calif.................................. 269
CONTENTS IX

Gaging-station records Continued.

San Joaquin River basin Continued. Page

Merced River at Bagby, Calif..................................................... 270

Lake McClure at Exchequer, Calif................................................. 271

Merced River at Exchequer, Calif................................................. 272

Merced River near Stevinson, Calif............................................... 273

Merced River Slough near Newman, Calif......................................... 274

San Joaquin River near Newman, Calif................................................ 275

Orestimba Creek near Newman, Calif............................................... 276

Tuolumne River:

Falls Creek near Hetch Hetchy, Calif........................................... 277

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.................................... 278

Tuolumne River near Hetch Hetchy, Calif.......................................... 279

Cherry Creek near Hetoh Hetchy, Calif.......................................... 280

Lake Eleanor near Hetch Hetchy, Calif........................................ 281

Eleanor Creek near Hetch Hetchy, Calif....................................... 282

South Fork Tuolumne River near Oakland Recreation Camp, Calif.................. 283

Middle Tuolumne River at Oakland Recreation Camp, Calif...................... 284

Woods Creek near Jacksonville, Calif........................................... 285

Don Pedro Reservoir near La Grange, Calif........................................ 286

Tuolumne River above La Grange Dam, near La Grange, Calif........................ 287

Modesto Canal near La Grange, Calif............................................ 288

Turlock Canal near La Grange, Calif............................................ 289

Tuolumne River at Modesto, Calif................................................. 290

Middle Fork Stanislaus River at Kennedy Meadows, Calif........................... 291

Middle Fork Stanislaus River at Sand Bar Flat, near Avery, Calif................. 292

North Fork Stanislaus River near Avery, Calif.................................. 293

South Fork Stanislaus River at Strawberry, Calif............................... 294

Philadelphia Canal near Strawberry, Calif.................................... 295

Tuolumne Canal near Long Barn, Calif......................................... 296

South Fork Stanislaus River near Long Barn, Calif.............................. 297

Melones Reservoir at Melones Dam, Calif.......................................... 298

Stanislaus River below Melones powerhouse, Calif................................. 299

South San Joaquin Canal near Knights Ferry, Calif............................. 300

Oakdale Canal near Knights F'erry, Calif....................................... 301

Stanislaus River at Ripon, Calif................................................. 302

San Joaquin River near Vernalis, Calif............................................. 303

South Fork Calaveras River:

San Domingo Creek near San Andreas, Calif...................................... 304

San Antonio Creek near San Andreas, Calif...................................... 306

North Fork Calaveras River:

Esperanza Creek near Mokelumne Hill, Calif................................... 308

Jesus Maria Creek near Mokelumne Hill, Calif................................. 309

Cosgrove Creek near Valley Springs, Calif...................................... 311

Calaveras River at Jenny Lind, Calif............................................. 312

Stockton diverting canal at Stockton, Calif.................................... 313

Bear Creek near Lockeford, Calif................................................. 314

North Fork Mokelumne River:

Salt Springs Reservoir near West Point, Calif.................................... 315

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif................... 316

North Fork Mokelumne River below Salt Springs Dam, Calif......................... 317

Cold Creek near Mokelumne Peak, Calif.......................................... 318

Bear River at Pardoe Camp, Calif............................................... 319

Middle Fork Mokelumne River at West Point, Calif............................... 320

South Fork Mokelumne River near West Point, Calif............................ 321

Mokelumne River near Mokelumne Hill, Calif....................................... 322

Mokelumne River at Lancha Plana, Calif........................................... 323

Mokelumne River near Clements, Calif............................................. 324

Woodbridge Canal at Woodbridge, Calif.......................................... 325

Mokelumne River at Woodbridge, Calif............................................. 326

Dry Creek near Gait, Calif..................................................... 327

North Fork Cosumnes River at Cosumnes Mine, Calif.............................. 328

Camp Creeknear Camino, Calif.................................................. 329

Sly Park Creek near Pollock Pines, Calif.................................... 330

North Fork Cosumnes River near El Dorado, Calif................................ 331

Cosumnes River near Plymouth, Calif............................................ 332

Cosumnes River at Michigan Bar, Calif.......................................... 333

Cosumnes River at McConnell, Calif............................................. 334

Goose Lake (closed basin):

Drew Creek near Lakeview, Oreg................................................... 335

Cottonwood Creek near Lakeview, Oreg............................................. 336

Sacramento River basin:

Sacramento River at Delta, Calif..........'......................................... 337

Pit River:

South Fork Pit River near Likely, Calif. ....................................... 338

Pit River near Canby, Calif...................................................... 339

Pit River at Fall River Mills, Calif.............................................. 340

Hat Creek near Hat Creek, Calif................................................ 341

Pit River below Pit No. 4 Dam, Calif............................................. 342

Pit River at Big Bend, Calif..................................................... 343

Pit River near Montgomery Creek, Calif........................................... 344

Squaw Creek above Shasta Lake, Calif........................................... 345

McCloud River near McCloud, Calif..............................:............... 346

McCloud River above Shasta Lake, Calif......................................... 347
X CONTENTS

Gaging-station records Continued.

Sacramento River basin Continued. Page

Shasta Lake near Redding, Calif.................................................... 348

Sacramento River at Keswick, Calif................................................. 349

Clear Creek at French Gulch, Calif......................'......................... 350

Clear Creek near Igo, Calif...................................................... 351

Cow Creek near Millville, Calif.................................................. 352

Cottonwood Creek near Cottonwood, Calif.......................................... 353

Battle Creek near Cottonwood, Calif.............................................. 354

Paynes Creek near Red Bluff, Calif............................................... 355

Sacramento River near Red Bluff, Calif............................................. 356

Antelope Creek near Red Bluff, Calif............................................. 357

Mill Creek near Los Molinos, Calif............................................... 358

Elder Creek near Paskenta, Calif................................................. 359

Elder Creek at Gerber, Calif..................................................... 360

Thomes Creek at Paskenta, Calif.................................................. 361

Deer Creek near Vina, Calif...................................................... 362

Chico Creek near Chico, Calif.................................................... 363

Stony Creek near Hamilton City, Calif............................................ 364

Sacramento River at Butte City., Calif............................................... 365

Sacramento River at Colusa, Calif................................................... 366

Butte Creek near Chico, Calif .................................................... 367

Sacramento River below Wilkins Slough, Calif....................................... 368

Sacramento River at Knights Landing, Calif......................................... 369

Middle Fork Feather River:

Grizzly Creek near Portola, Calif.............................................. 370

Middle Fork Feather River near Clio, Calif....................................... 371

Middle Fork Feather River below Sloat, Calif ..................................... 372

South Fork Feather River:

Lost Creek near Clipper Mills, Calif......................................... 373

Palermo Canal at Enterprise, Calif........................................... 374

South Fork Feather River at Enterprise, Calif.................................. 375

Feather River at Bidwell Bar, Calif...........................................^ .. 376

North Fork Feather River:

Lake Almanor near Prattville, Calif............................................ 377

North Fork Feather River near Prattville, Calif................................ 378

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif........... 379

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif........... 380

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

Crescent Mills, Calif.................................................... 381

Spanish Creek at Keddie, Calif ............................................... 382

Bucks Creek Reservoir near Bucks Ranch, Calif.................................. 383

North Fork Feather River at Big Bar, Calif..................................... 384

West Branch Feather River:

Concow Creek near Yankee Hill, Calif....................................... 385

Spring Valley ditch near Yankee Hill, Calif.............................. 386

West Branch Feather River near Yankee Hill, Calif............................ 387

Feather River near Oroville, Calif............................................... 388

Honcut Creek:

South Honcut Creek near Bangor, Calif ........................................ 389

Middle Yuba River:

Milton-Bowman tunnel at outlet, Calif ........................................ 390

Middle Yuba River at Milton, Calif............................................. 391

Middle Yuba River above Oregon Creek, Calif.................................... 392

Oregon Creek near North San Juan, Calif...................................... 393

North Yuba River below Goodyears Bar, Calif.................................. 394

North Yuba River below Bullards Bar Dam, Calif............................... 395

South Yuba River near Cisco, Calif........................................... 396

Canyon Creek:

Bowman Lake near Graniteville, Calif....................................... 397

Bowman-Spaulding Canal at intake, Calif.................................. 398

Canyon Creek below Bowman Lake, Calif...................................... 399

South Yuba Riyer near Washington, Calif...................................... 400

Yuba River at Narrows Dam, Calif............................................... 401

Deer Creek near Smartville, Calif............................................ 402

Dry Creek near Brownsville, Calif............................................ 403

Dry Creek at Virginia Ranch, Calif........................................... 404

Yuba River at Marysville, Calif................................................ 405

Bear River:

Bear River Canal near Coifax, Calif........................................ 406

Bear River near Coifax, Calif................................................ 407

Bear River near Auburn, Calif................................................ 408

Bear River near Wheatland, Calif............................................. 409

Dry Creek near Wheatland, Calif............................................ 410

Feather River at Nicolaus, Calif................................................. 413

Sacramento River at Verona, Calif.................................................. 414

North Fork American River at North Fork Dam, Calif............................... 415

Middle Fork American River:

Rubicon River near Georgetown, Calif......................................... 416

Pilot Creek:

Georgetown ditch above Pilot Creek, near Georgetown, Calif. .............. 417

Georgetown ditch near Georgetown, Calif.................................. 418

Pilot Creek near Georgetown, Calif......................................... 419

Middle Fork American River near Auburn, Calif. .......'................ 420
CONTENTS XI

Gaging-station records Continued. 

Sacramento River basin Continued.

North Fork American River Continued. Page 

Middle Fork American River near Auburn, Calif.................................. 420

North Fork American River at Rattlesnake Bridge, Calif........................... 421

South Fork American River:

Echo Lake conduit near Vade, Calif........................................... 422

Medley Lakes Outlet near Vade, Calif......................................... 423

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

Kirkwood, Calif.......................................................... 424

Twin Lakes Outlet near Kirkwood, Calif..................................... 425

El Dorado Canal near Kyburz, Calif ........................................... 426

South Fork American River near Kyburz, Calif................................... 427

Alder Creek near Whitehall, Calif............................................ 428

Silver Creek at Union Valley, Calif. ......................................... 429

South Fork Silver Creek near Ice House, Calif.............................. 430

Silver Creek near Placerville, Calif ......................................... 431

American River flume near Camino, Calif...................................... 432

South Fork American River near Camino, Calif................................... 433

South Fork American River near Lotus, Calif.................................... 434

Webber Creek near Salmon Falls, Calif........................................ 435

American River at Fair Oaks, Calif............................................... 436

American River at Sacramento, Calif.............................................. 437

Yolo bypass:

Clear Lake (head of Cache Creek):

Kelsey Creek near Kelseyville, Calif ......................................... 438

Clear Lake at Lakeport, Calif.................................................. 439

Cache Creek near Lower Lake, Calif............................................. 440

North Fork Cache Creek near Lower Lake, Calif................................ 441

Cache Creek near Capay, Calif.................................................. 442

Cache Creek at Yolo, Calif..................................................... 443

Yolo bypass near Woodland, Calif................................................. 444

Putah Creek near Guenoc, Calif.................................................. 445

Putah Creek near Winters, Calif................................................ 446

Putah Creek near Davis, Calif.................................................. 447

Napa River basin:

Hapa River near St. Helena, Calif.................................................. 448

Conn Creek near St. Helena, Calif................................................ 449

Petaluma Creek basin:

Fetaluma creek near Petaluma, Calif................................................ 450

Novato Creek basin:

Novato creek near Novato, Calif.................................................... 451

Russian River basin:

East Fork Russian Elver near Calpella, Calif....................................... 452

Russian River near Hopland, Calif.................................................. 453

Russian River near Healdsburg, Calif............................................... 454

Dry Creek near Cloverdale, Calif................................................. 455

Laguna de Santa Rosa near Graton, Calif.......................................... 456

Russian River at Guerneville, Calif................................................ 457

Eel River basin:

HTce Pillsbury (head of Eel River) at Hullville, Calif............................. 458

Eel River at Hullville, Calif...................................................... 459

Potter Valley powerhouse tailrace near Potter Valley, Calif...................... 460

Eel River at Van Arsdale Dam near Potter Valley, Calif. ............................ 461

South Fork Eel River near Branscomb, Calif....................................... 462

South Fork Eel River near Miranda, Calif.....................................".... 463

Eel River at Scotia, Calif......................................................... 464

Van Duzen River at Bridgeville, Calif............................................ 465

Van Duzen River near Bridgeville, Calif.......................................... 466

Mad River basin:

MacT River near Arcata, Calif....................................................... 467

Klamath River basin:

Williamson Kiver (head of Klamath River): 

Sprague River near Chiloquin, Oreg................................................. 468

Williamson River below Sprague River, near Chiloquin, Oreg......................... 469

Upper Klamath Lake (continuation of Williamson River): 

Fourmile Creek: 

Cascade Canal near Fish Lake, Oreg............................................... 470

"A"Canal at Klamath Falls, Oreg................................................... 471

Keno Canal at Klamath Falls, Oreg.................................................. 472

Upper Klamath Lake near Klamath Falls, Oreg. ........................................ 473

Link River (outlet of Upper Klamath Lake) at Klamath Falls, Oreg................... 474

Lost River:

Lost River diversion canal near Olene, Oreg.................................... 475

Diversion from Klamath River to Lost River near Olene, Oreg.................... 476

Klamath River at Keno, Oreg........................................................ 477

Fall Creek at Copco, Calif....................................................... 478

Klamath River below Fall Creek, near Copco, Calif.................................. 479

Jenny Creek: 

Beaver Creek near Lilyglen, Oreg............................................... 480

Keene Creek at Hyatt Prairie, near Ashland, Oreg............................... 481

Shasta River near Yreka, Calif.................................................... 482

Scott River near Jbrk Jones, Calif................................................ 483

Salmon River at Somesbar, Calif.................................................. 484
XII CONTENTS

Gaging-station records--Continued.

Klamath River basin--Continued. Page 

Klamath River at Somesbar, Calif................................................... 485

Trinity River at Lewiston, Calif................................................. 486

Trinity River near Douglas City, Calif........................................... 487

Trinity River near Hoopa, Calif.................................................. 488

Smaller reservoirs in Klamath River basin, Oreg.................................... 489

Smith River basin:

Smith River near Crescent City, Calif.............................................. 490

Miscellaneous discharge measurements ................................................. 491

Index................................................................................ 497

ILLUSTRATION

Page 

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

Sacramento River at Delta, Calif.; C, North Fork Cache Creek near

Lower Lake,'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 1951 water

year with median discharge for 25-year period........................... 15
SURFACE WATER SUPPLY OF PACIFIC SLOPE BASINS IN CALIFORNIA, 1951

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, 1951. 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 12,400 gaging stations in the 48 States and at many others in the Territories of Alaska and Hawaii. On September 30, 1951, the Geological Survey and cooperating 

organizations were maintaining 6,730 gaging stations, including those in Alaska and Hawaii. 

Miscellaneous discharge measurements were made at many other points in the 1951 water year.

COOPERATION'

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

of Public Works, C. H. Purcell, director, succeeded by F. B. Durkee, and A. D. Edmonston, 

State engineer; San Bernardlno County; Calaveras County Water District; Orange County Flood 

Control District; San Luis Obispo County Flood Control and Water Conservation District; 

City of San Diego, and City of Santa Barbara and Santa Barbara County Water Agency. In 

Oregon the work was done under cooperative agreement with the State of Oregon, C. E. 

Stricklin, 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 37 gaging stations, by the 

Bureau of Reclamation of the United States Department of the Interior for 63 gaging stations, and by the Bureau of Indian Affairs, United States Department of the Interior for 

one gaging station. 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 organizations aided in collecting records: In California, The California 

Oregon Power Co., Southern California Edison Co., Pacific Gas & Electric Co., and Merced, 

Modesto, Table Mountain, Thermalito, Turlock, Oakdale, South San Joaquin, and Woodbridge 

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

DIVISION OF WORK

The stream gaging was done by the Water Resources Division of the Geological Survey, 

Carl G. Paulsen, chief hydraulic engineer, and Joseph V. B. Wells, chief of the surface 

water branch. The data for stations in the several States were collected and prepared for 

publication under the supervision of the district engineers at the offices listed below. 

The records were reviewed and the manuscript prepared for publication under the direction 

of B. J. Peteraon, chief, Annual Reports Section.

State District office Address

California-a/-............. San Francisco................. 541 Federal Office Building.

Oregon b/. .7............... Portland...................... 606 Post Office Building.

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

B/ Including Pall Creek and Klamath River near Copco, C
2 SURFACE WATER SUPPLY, 1951, PART 11

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 stage-discharge 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.

NEW 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 has been 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
EXPLANATION OP DATA 3

gaging station is situated and the stream to which it is immediately tributary, each inden-. 

tion in the listing of gaging stations in the table of contents of this report represents 

one rank. This new 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 OP 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 is 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 

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

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 

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 of stage is 

used as a factor in the determination of discharge.
SURFACE WATER SUPPLY, 1951, PART 11

A. FISH CREEK NEAR DUARTE, CALIF.

B. SACRAMENTO RIVER AT DELTA, CALIF.

C. NORTH FORK CACHE CREEK NEAR LOWER LAKE, CALIF.

FIGURE 1. GAGING-STATION STRUCTURES.
EXPLANATION OF DATA 5

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.

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 "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 of gages, locations, and datums of previous gages for which discharge records are 

generally equivalent to those at the present site. 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). 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 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 report 

number, "W" means water-supply paper. In listing the water years only one number is

256498 O - 53 - 2
6 SURFACE WATER SUPPLY, 1951, PART 11

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.

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 nonreeording 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 values for the maximum day and the minimum day for 

each month are underlined. If the value ia 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 values; 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 

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"). Values 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 values of maximum are the maximum 

daily discharges, not the mome/itary discharges when the water was at crest stage. Likewise, the minimums in this summary are the minimum daily discharges.
ACCURACY OP FIELD DATA AND COMPUTED RESULTS 7

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.

Footnbtes 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 "Remarks11 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.

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.

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, values of 

cubic feet per second per square mile and runoff, in inches, are not published unless 

stoi-age 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.
SURFACE WATER SUPPLY, 1951, PART 11

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, Qgeeehee River 

to 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 baaln.

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. 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 

t>f 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 1884-1901, In reports of the Oeological Survey 

(A » Annual Report; B = Bulletin; W = Water-Supply Paper)

Report

10th A, pt. 

llth A, pt. 

12th A, pt. 

13th A, pt. 

14th A, pt.

B l HI

16th A, pt.

2 

2 

2 5 

2

2

Character of data

Descriptive Information only. 

Monthly discharge and descriptive Inforna

Descriptions, measurements, gage heights. 

Descriptive Information only. 

Descriptions, measurements, gage heights, 

monthly discharge.

ratings, and

Year

18S4 to 

18S4 to 

1884-92 

1888-93 

1893-94

1S95.

September 1890. 

June 30, 1891.
PUBLICATIONS

 st
10 SURFACE WATER SUPPLY, 1951, PART 11

Streamflow data for the years 1884-1901, In reports of the Geological Survey Continued 

(A Annual Reports; B - Bulletin; W - Water-Supply Paper)

Report

W 11.........

18th A, pt. 4

19th A, pt. 4 

W 27.........

20th A, pt. 4

W 35 to 39... 

21st A, pt. 4

W 47 to 52...

W 65, 66..... 

W 75.........

Character of data

Descriptions, measurements ratings, and monthly discharge..

of the Mississippi River and Missouri River and tributaries above Kansas River.

of the Mississippi River except Missouri River and tributaries above Kansas River. 

Descriptions, measurements, ratings, and monthly discharge.

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

1895-96.

1897.

1898.

1899. 

1899.

1900.

1901. 

1901.

Reports on surface-water supply containing records from 1899 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 .

[umbers of water-supply papers containing results of stream measurements In Pacific slope

basins In California, 1899-1951

Year

1899....

1900.. ..

1901. . ..

1902. ...

1903....

1904....

1905. ...

1906....

1907-8..

1909....

1910....

1911-. . . .

1912....

W.S.P.

.. 38,a39

51

.. 66, 75

85

100

134

177

213

251

271

291

311

331

Year

1913......

1914......

1915..

1916......

1917.

1918......

1919-20...

1921.

1922.

1923......

1924.

1925......

1926......

W.S.P.

361

391

411

441

461

481

511

531

551

571

591

611

631

Year W.S.P.

1927. .... 651

1928.

1929.

1930.

1931.

1932.

1933.

1934.

1935.

1936.

1937.

1938.

1939.

.... 671

.... 691

.... 706

.... 721

.... 736

.... 751

.... 766

.... 791

.... 811

.... 831

.... 861

.... 881

Year

1940..

1941..

1942..

1943..

1944..

1945..

1946..

1947..

1948..

1949..

1950..

1951..

W.S.P.

901 

931 961 ' 

981 

1011 

1041 

1061 

1091 

1121 

1151 

1181 

1215

a Kings and Kern Rivers and south Pacific slope.

The records at most of the stations discussed in these reports extend over many years. 

Miscellaneous measurements at many points other than regular gaging stations have been 

made each year and are published under "Miscellaneous discharge measurements" 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 the report. An index.of the records obtained 

before 1904 has been published in Water-Supply Paper 119.

Each or the reports on the surlace-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.
RECORDS OP DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 

Reports containing compilations of records of discharge by States

11

Water-Supply 

Paper

298

299

300

370

447

59 7 -E

636-D

636-E

637-A

Period

1887-1912

1878-1912

1891-1912

1878-1910

1890-1918

1895-1927

1895-1927

1894-1927

1895-1927

Report

Water resources of California, part 1, Stream measurements

River basin.

Water resources of California, part 2, Stream measurements

Joaquin River basin.

Water resources of California, part 3, Stream measurements

Basin and Pacific Coast river basins.

Surface water supply of Oregon.

Surface water supply of Pacific slope of California.

Surface water supply of Sacramento River basin.

Surface water supply of San Joaquin River basin.

Surface water supply of Pacific slope basins In southern C

Surface water supply of minor San Francisco Bay, northern

Great basins In California.

in Sacramento

in San

in the Great

alifornia.

Pacific, and

State reports containing compilations of records of discharge

State

Oregon ........

Do. ........

Do.........

Do.... .....

Do.. .......

Period

1878-1914

1914-24

1924-30

1930-36

1936-41

Report

Bull. 4, Water resources of the State of

Oregon.

Bull. 7, Water resources of the State of

Oregon.

Bull. 8, Water resources of the State of

Oregon.

Bull. 9, Water resources of the State of

Oregon.

Bull. 10, Water resources of the State

of Oregon.

Issued by

Office of the State Fnelneer.

Do.

Do.

Do.

DO.

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 hydrologic information and analyses and compilations of data relating to earlier notable floods. The following list gives the numbers 

and titles of these reports:

Water-Supply 

Paper Title

147......... Destructive floods in the United States in 1904.

426......... Southern California floods of January 1916.

771......... Floods in the United States, magnitude and frequency.

796-C....... Flood in La Canada Valley, Calif., January 1, 1934.

843......... Floods in December 1937 in northern California.

844......... Floods of March 1938 in southern California.

847......... Maximum discharges at stream-measurement stations through September 1938.

1137-E...... Floods of. 1950 in southwestern Oregon and northwestern California.

1137-F...... Floods of November-December 1950 in Central Valley basin, California.

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The table below contains a list of gaging stations for the area covered by this report, 

at which records of discharge were collected during the water year October 1950 to September 1951 Tsy agencies other than the Geological Survey. The records of these stations are 

not contained in publications of the Geological Survey, nor have they been published elsewhere 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.
SURFACE WATER SUPPLY, 1951, PART 11

Records of discharge collected by agencies other than the Geological Survey

Stream

Alaraeda storm drain. .... 

Alhambra Wash. ..........

Arroyo Seco. ............

Azusa Duarte tunnel 

diversion. 

Ballona Creek. ..........

Do. ...................

Do. ................... 

Batavla storm drain. .... 

Bauers Creek. ...........

Beryl Ave. storm drain..

Big Sand Creek. ......... 

Bouton Creek. ...........

Burns Reservoir. ........ 

Carbon Creek. ...........

Castle Creek. ...........

Chlno Creek. ............

City Creek, old channel.

Clear Lake Reservoir 

(elevation and discharge) . 

Clover Creek. ........... 

Colton southwest storm 

drain.

Do. ............... ...

Cox Creek. ..............

Cucamonga Creek. ........ 

Daley Creek. ............

Dominguez Channel ....... 

Do ....................

Do ....................

Dry Creek Reservoir 

(Big Dry Outlet) 

Dry Creek Reservoir 

(Little Dry Outlet). 

Dume (Zuraa) Creek. ......

East Etlwanda Creek. .... 

Eaton Wash. .............

Location m

Alameda St. at Santiago Blvd., northeast of Orange, Calif. 

Klingerman St., Wilmar, Calif ........

Below Devils Gate Dam, near Pasadena, 

Calif.

Mouth of San Gabriel Canyon near 

Azusa, Calif. 

Sepulveda Blvd., near Culver City, 

Calif. 

Curson Ave., Los Angeles, Calif......

Calif. 

Below Culver Blvd., near Venice, 

Calif. 

Parker St., north of Santiago Creek, 

near Orange, Calif. 

SE£ sec. 7, T. 38 S. , R. 20 E., Just 

downstream from Cox Creek, near 

Lakevlew, Oreg. 

19th St. and Beryl Ave., near Alta 

Loma, Calif.

Calif. 

Patton, Calif. .......................

Anahelm St., near Long Beach, Calif..

5 miles northeast of Planada, Calif.. 

Ramona Ave., near Chlno, Calif.......

Calif. 

Above Lake van Norden, near Soda 

Springs, Calif.

Riverside Drive, near Chlno, Calif...

Church Ave., near East Highlands, 

Calif. 

Sec. 8, T. 47 H. , R. 8 E., In California, near Langell Valley, Oreg.

2 miles east of Upper Lake, Calif.... 

Colton Ave., south of Colton, Calif..

NE£ sec. 8, T. 38 S., R. 20 E. , about 

half a mile upstream from confluence with Bauers Creek, near Lakeview, Oreg. 

Merrill Ave., south of Ontario, 

Calif. 

Near Del Rosa, Calif. ................

Calif.

Mira Loma, Calif.

Calif.

Carson Blvd., Torrance, Calif ........ 

Rosecrans Ave., near Gardena, Calif..

SW£ sec. 16, T. 41 S., R. 18 E., 18 

miles southwest of Lakeview, Oreg. . 

4 miles northeast of Clovls, Calif...

5 miles north of Clovls, Calif....... 

At bridge on Roosevelt Highway, Calif.

Pacific Electric Railroad bridge near 

Etiwanda, calif. 

Ellis Lane, near El Monte, Calif.....

Period

1937-51 

1929-51

1942-51

1918-51 

1948-51

1943-51 

1940-51

1948-51 

1935-31 

1945-51

1947-51

1947-51 

1949-51

1949-51tt 

1942-51

1946-51

1942-51 

1947-51 

1919-51t

1948-51 

1942-51

1945-51

1947-51 

1947-51

1947-51

1947-51

1946-51

1938-51

1942-51 

1946-51

1945-51 

1949-51 

1949-51 

1930-51 

1947-51 

1930-51

Collected by

Orange County Flood Control District. 

Los Angeles County Flood 

Control District.

DO.

Do. 

DO. 

DO.

Do.

Orange County Flood Control District. 

Oregon State engineer.

San Bernardlno County 

Flood Control District.

Control District. 

San Bernardlno County 

Flood Control District. 

Los Angeles County Flood 

Control District. 

Corps of Engineers. 

San Bernardlno County 

Flood Control District.

Control District. 

Cooperative Snow Investigations, Corps of Engineers and U. S. Weather 

Bureau . 

San Bernardlno County 

Flood Control District. 

Do.

Bureau of Reclamation.

Corps of Engineers. 

San Bernardlno County 

Flood Control District.

Control District.

Oregon State engineer.

San Bernardlno County 

Flood Control District. 

Do.

Control District. 

San Bernardino County

Flood Control District. 

Do.

Corps of Engineers.

Los Angeles County Flood 

Control District. 

Do. 

Corps of Engineers.

Oregon State engineer.

Fresno Irrigation District. 

Do.

Los Angeles County Flood 

Control District. 

San Bernardlno County 

Flood Control District. 

Los Angeles County Flood 

Control District.

t Monthly discharge 1919-24; dally discharge 1924-51.

* Records for some earlier years contained in water-supply papers of Geological Survey.

 ft Records of outflow.
RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 13

Records of discharge collected by agencies other than the Geological Survey Continued

Stream

Fullerton relief channel

Gerber Reservoir (elevation and discharge). 

Harrison Creek. .........

Laguna Dominguez. .......

La Veta Ave. storm drain

Little Sand Creek. ...... 

Little Santa Anita Creek

Do. ...................

Los Cerritos channel....

Macey debris basin......

Mariposa Reservoir. ..... 

Middle Creek. ............

Monrovia Creek. .........

Monrovia storm darin. . . . 

Montebello storm drain. . 

Owens Reservoir. ........ 

Pacoima Wash. ...........

Peters Canyon Wash. .....

Puddingstone Creek. ..... 

Reche Canyon Creek. .....

Rialto-Baseline storm 

drain.

Do....................

San Gabriel River. ......

Location

Pasadena, Calif. 

Brighton Way west of Magnolia Ave., 

Fullerton, Calif. 

Sec. 12, T. 39 S., R. 13 E., near 

Lorella, Oreg. 

Near Del Rosa, Calif. ................

7, T. 41 S., R. 11 E., Oreg. 

Harbor Blvd., near Torrance, Calif...

Roscoe, Calif. 

La Veta Ave., east of Santiago Creek, 

sdutheast of Orange, Calif.

Calif. 

Near Del Rosa, Calif. ................

270 feet below Sierra Madre Dam at 

Sierra Madre, Calif.

Calif.

La Verne, Calif.

Radford Ave. at Studio city, Calif...

Calif. 

Above Aifaheim St., near Long Beach, 

Calif.

R. lli E., 4 miles southwest of 

Bonanza, Oreg.

Dam), SEiSW-t aec. 29, T. 39 S., R. 

10 E.

near corner of 'sees. 7, 8, 17, and 

18, T. 41 S., R. 11 E., near 

Merrill, Oreg. 

Cajon Blvd., near San Bernardino, 

Calif. 

5 miles east of Le Grand, Calif...... 

3 miles north of Upper Lake, Calif...

Calif. 

Above confluence with Sawpit Creek, 

near Monrovia, Calif. 

Peck Rd. , Monrovia, Calif. ........... 

Mines Ave., Montebello, Calif ........ 

4 miles east of Planada, Calif....... 

Parthenia St., near Van Nuys, Calif..

Lane Road, near Santa Ana, Calif.....

Calif.

Below Puddingstone Dam, near San Dimas, Calif. 

Pigeon Pass Road, near Loma Linda, 

Calif. 

Baseline Ave., near San Bernardino, 

Calif.

El Monte, Calif.

Calif. 

Riverside Drive, near Chino, Calif...

Springs, Calif.

near San Dimas, Calif. 

Foothill Blvd., near Azusa, Calif....

Calif.

Period

1940-51

1941-51 

1926-51 

1947-51

1942-51

1936-51

1947-51 

1929-51

1950-51

1942-51

1947-51

1948-51tt 

1948-51

1927-51

1932-51 

1932-51 

1949-51tt 

1928-51

1930-51

1927-51 

1947-51 

1942-51

1944-51

1947-51

1932-51

Collected by

Los Angeles County Flood

Control District. 

Orange County Flood Control District. 

Bureau of Reclamation.

San Bernardino County 

Flood Control District.

Los Angeles County Flood 

Control District.

Orange County Flood Control District.

Control District. 

San Bernardino County 

Flood Control District. 

Los Angeles County Flood 

Control District.

Do.

Do.

Sar» Bernardino County 

Flood Control District. 

Corps of Engineers. 

Do.

Flood Control District. 

Los Angeles County Flood 

Control District. 

Do. 

Do. 

Corps of Engineers. 

Los Angeles County Flood 

Control District. 

Orange County Flood Control District.

Control District.

Flood Control District. 

Los Angeles County Flood 

Control District. 

San Bernardino County 

Flood Control District. 

Do.

Control District.

San Bernardino County 

Flood Control District.

Survey.

Control District. 

Do.

t Records for some earlier years contained in water-supply papers of Geological Survey, 

tt Records of outflow.
SURFACE WATER SUPPLY, 1951, PART 11

Records of discharge collected by agencies other than the Geological Survey Continued

Stream

San Jacinto River. ......

Santa Ana-Delhi drain... 

Santa Ana River. ........ 

Santa Anita Creek. ......

Sawtelle-Westwood 

channel .

Sycamore Canyon channel 

(formerly upper storm 

drainj . 

Sycamore Canyon channel 

(formerly lower storm 

drain).

Thompson Creek spreading 

ground intake.

Tujunga Wash, central 

branch.

Verdugo storm drain. .... 

Villa Park storm drain.. 

Walnut Ave. storm drain. 

Walnut Creek... .........

West Anaheim storm drain

West Pork San Gabriel 

River. 

Do.................. 

Wildwood Creek. .........

Do. ..................

Location

Bridge Street near Lakeview, Calif. . .

Calif.

Pontana, Calif. 

Newport Blvd., northeast of Costa 

Mesa, Calif. 

Yorba Bridge, northeast of Olive, 

Calif. 

Below Big Santa Anita Dam, near 

Arcadia, Calif.

Calif.

county line, near Piru, Calif.

Montalvo, Calif.

Calif. 

Culver Blvd. near Culver City, Calif.

Calif. 

Above Solway St., Glendale, Calif.

Adams Square, Glendale, Calif.

upstream from Barnes spring, 8 

miles northwest of Lakeview, Oreg.

mont, Calif. 

Thompson Creek Dam near Claremont, 

Calif.

Calif.

nardino, Calif.

land, Calif.

Calif. 

Magnolia Blvd. , North Hollywood, 

Calif.

EstelleAve., Qlendale, Calif ........

Center Dr. at Lincoln" St., near Villa 

Park, Calif. 

Walnut Ave., at Prospect Ave., east 

of Orange, Calif. 

Covina Blvd., at Baldwin Park, Calif.

Calif.

Manchester Blvd., west of Anaheim, 

Calif. 

Half a mile below San Gabriel dam 2, 

Calif. 

At toe of San Gabriel dam 2, Calif... 

Near Yucaipa, Calif. .................

Old Highway 99, near Yucaipa, Calif..

Period

1949-51

1949-51 

1934-51 

1948-51

1951 

1948-51

1927-51 

1927-51

1940-51 

1945-51

1942-51

1950-51

1930-51

1936-51 

1936-51 

1928-51 

1926-51 

1946-51

1936-51 

1934-51

193b-51 

1947-51

1947-51

Collected by

Riverside County Flood 

Control District.

Flood Control District. 

Orange County Flood Control District. 

Do.

Los Angeles County Flood 

Control District.

Survey.

Control District. 

Do.

Los Angeles County Flood 

Control District.

Do.

Control District. 

Do.

Flood Control District.

Control Cistrict. 

Do.

Do.

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.

Orange County Flood Control District. 

Los Angeles County Flood 

Control District. 

Do. 

San Bernardino County 

Flood Control District.

Do.

HYDROLOGIC CONDITIONS

Strearaflow during the water year 1951 in the Pacific slope basins in California ranged 

from far above normal in northern California to the lowest flows of record for some 

streams in the extreme southern part of California. Floods in northern California in November and December 1950 are described in Water-Supply Paper 1137-F. For three key stations in the area covered by this report, a comparison of the monthly and yearly mean discharge during the 1951 water year with the median discharge for the 25-year period 1921-45 

is shown in figure 3 on page 15.
HYDROLOGIC CONDITIONS 15

Arroyo Seco near Pasadena, Calil 

Drainage area, 16.4 sq mi.

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May June July Aug. Sept. The

year

8000 Kings River at Piedra, Calif 

Drainage area, 1,694 sq mi.

Oct. Nov. Dec. Jan. Feb. Mar\ Apr." May June July Aug." Sept. The

year

Trinity River at Lewiston, Calif 

Drainage area, 724 sq mi.

Oct. Nov. Dec. Jan. Feb. Mar. Apr. May "June July Aug. Sept. The

Explanation.

Median of monthly mean discharge for 25-year period 1921-45. 

Monthly mean discharge during water year 1951.

Figure 3. Comparison of discharge at three key gaging stations during 1951 water year 

with median discharge for 25-year period.
16 GAGING-STATION RECORDS

TIA JUANA RIVER BASIN

Cottonwood Creek at Morena Dam, Calif.

Location.--Lat 32°41'00", long. 116°32'55", in Sw£ sec. 14, T. 17 S., R. 4 E. , on Morens 

Jjam outlet tower.

Drainage area.--120 sq mi.

Records available.--January 1916, October 1936 to September 1951.

Gage.--Staff gage read once daily. Datum of gage is 2,882.4 ft above mean sea level.

Remarks.--Records of runoff represent all water reaching Morena Reservoir, including rainran on reservoir surface, computed on basis of records of storage, release (draft), 

spill, leakage, and evaporation. Revised 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 (revised). No dead storage (revised). 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). W 1091: 1946.

Monthly runoff, October 1948 to September 1951

Month

October 1948 ...............

April .....................

July.......................

August ................. ...

October 1949. ..............

Calendar year 1949 .......

January 1950 ...............

March ...................

October 1950 ...............

Calendar year 1950. ......

June .......................

October 1951 ...............

Morena Res

Gage height 

(feet)t

72 52

'

-

ervolr

Contents 

(acrefeet)t

5O

-

Change

contents 

(acrefeet)

23

+39

-765

(acrefeet)

1,033

Evaporation 

(acrefeet)

23

122

25

Spill

leakage 

(acrefeet)

12

(acrefeet)

88

52

29

25

402

52

25

t On first day of month.

* Estimated.

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.
TIA JUANA RIVER BASIN 17

Dulzura conduit near Dulzura, Calif.

Location. Lat 32°37'05", long. 116°45'50", in SW 

 oanK 0.1 mile south of State Highway 94 and 2.

sec. 10, T. 18 S., R. 2 E., on right 

miles east of Dulzura.

Records available. January 1909 to September 1915, May 1940 to September 1951.

Sage. Water-stage recorder and Cippoletti weir. Datum of gage is 1,446.. 41 ft above mean 

sea level, unadjusted. Prior to 1911, staff gage at site 1? miles upstream at different datum.

Extremes. Maximum daily discharge during year, 26 cfs Mar. 5; no flow during most of year 

1910-15, 1940-51: Maximum daily discharge, 65 cfs Feb. 4, 1911; no flow for periods 

in each year.

Remarks . Records gooa. Conduit diverts from Cottonwood Creek at Barrett Dam in NW-J- sec. 

22, T. 17 S., B. 3 E., to Otay River basin. Average diversion, 17 years (1909-15, 

1940-51), 12,200 acre-ft.

Rating table, water "year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.0 0

.8 

2.4 

4.4

L.4 

.6

6.8

12

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

O

O

Jan.

0

tf

0

O

O

O

o

o

o

o

.2

.1

0

0

O

.1

0

0

o

o

0

0

0

0

o

.1

o

o

.5

«7Z

.1

1.3

O.04

2.6

Feb.

O

0

0

Mar.

O

tf

.6

18

26.

22

18

14

 10

8.1

6.3

 4.9

4.0

3.4

2.6

2.1

1.6

1.4

1.4

1.4

1.3

1.0

.8

.8

.8

».7

.7

.7

.6

.6

.5

154.3

4.98

306

Apr.

0.4

.4

.6

.7

.8

.8

.8

.7

.7

.7

».6

.6

.4

.4

.5

.3

.2

7Z

.3

.8

7.3

8.4

7.2

9.0

7.6

8.7

9.2

9.5

11 -9-. 8

-

98.6

3.29

196

May

9.8

 9.8

9.8

9.8

9.5

9.5

9.5

9.5

9.5

9.5

9.. 5

9.5

9.5

9.5

8.8

 9.8

9.8

10

TC

10

10

10

10

10

10

9.8

9.8

8. 6

9.5

9.5

9.2

299.2

9.65

593

June

8.0

9.0

F7T

 8.7

5.7

.1

O

V

o

0

0

0

0

0

o

0

0

0

0

0

0

o

o

0

o

0

o

0

o

o40.2

1.34

80

July

O

0

0

Aug.

O

tf

O

O

0

0

o

0

0

0

0

0

o

0

o

0

o

o

.0

o

o

o

0

0

0

0

0

.3 cr 

0

0

0.3

0.01

0.6

Sept.

0

0

0

Calendar year 1950: Max 31 Mln o Mean 1.57 Ac-ft 1,140 

Water year 1950-51: Max 26 Mln o Mean 1.53 Ao-ft 1,190

* Discharge measurement made on this day.
18 TIA JUANA RIVER BASIN

Cottonwood Creek above Tecate Creek, near Dulzura, Calif.

Location . Lat 32°34'10", long. 116°45'40", in sec. 27, T. 18 S. , R. 2 E., on right bank 

u.b mile upstream from confluence with Tecate Creek and 5.5 miles south of Dulzura.

Drainage area. 316 sq ml.

Records available . October 1936 to September 1951.

gage. Water-stage recorder. Datum of gage is 569.40 ft above mean sea level (levels by 

International Boundary and Water Commission) .

Average discharge. 15 years, 13.5 cfs; median of yearly mean discharges, 4.3 cfs.

Extremes . Maximum discharge during year, 1.9 cfs Apr. 30 (gage height, 1.53 ft); no flow 

during most of year.

1936-51: Maximum discharge, 2,780 cfs Feb. 7, 1937 (gage height, 9.65 ft), from 

rating curve extended above 550 cfs on basis of velocity-mean depth and area computation; no flow during part of each year.

Remarks . Records good. Flow regulated by Morena Reservoir (see p. 16 ) and Barrett Reservoir (see p. 16 ). Water diverted outside drainage basin by Dulzura conduit (see p. 17).

Rating table, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

1.2

1.3

1.4

1.5

.8 

2.0

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

0

0

Nov.

(*)

-

0

0

0

Dec.

(*)

0

0

0

Jan.

C)

<")

0

0

0

Feb.

(")

(*)

-

_

-

0

0

0

Mar.

(")

0

0

0

Apr.

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

1.2

1.6

0.05

3.2

May

0.5

\i

.3

.2

.1 

.1

0

0

0

0

0

.1

.1

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.3

0.07

4.6

June

<")

(*)

-

0

0

0

July

(*)

0

0

0

Aug.

(")

v

0

0

0

Sept.

(*)

_

0

0

0

Calendar year 1950: Max 2.1 Mln 0 Mean 0.70 Ac-ft 50 

Mater year 1950-51: Max 1.2 Mln 0 Mean 0.01 Ac-ft 7.8

Discharge measurement made on this day.
TIA JUANA RIVER BASIN 19

Campo Creek near Campo, Calif.

Location. Lat 32°35'20". long. 116°31'35", in sec. 24, T. 18 S., R. 4 E., on left bank 

just upstream (revised) from bridge on State Highway 94, about 3.5 miles southwest of 

Campo.

Drainage area. 84 sq mi, approximately, of which 4 sq mi are in Mexico. 

Records available. October 1936 to September 1951.

Gage. Water-stage recorder and broad-crested weir. Datum of gage is 2,180.08 ft above 

mean sea level (State Highway Department bench mark).

Average discharge. 15 years, 4.11 cfs; median of yearly mean discharges, 3.9 cfs.

Extremes. Maximum discharge during year, 2.7 cfs Apr. 29 (gage height, 0.52 ft); no flow 

during most of year.

1936-51: Maximum discharge, 1,470 cfs Feb. 6, 1937 (gage height, 3.80 ft), from 

rating curve extended above 45 cfs on basis of velocity-mean depth relation and crosssectional area at control; no flow at times during most years.

Remarks.--Records good.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.0 

.1 

.2 

.3

.1

.5

1.0

Discharge, In cubic feet per second, water year October 195O to September 1951

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

28

29

3O

31

Total

Mean

Ac- ft

Oct.

(*)

C

O

0

Nov.

(*)

(*)

(*)

-

O

0

0

Dec.

(*)

(*)

O

0

0

Jan.

0Do

0

O

O

0

0

*o

0

0

0

0

O

0

0

O

0

0

O

O

O

O

*0

O

O

O

O

*~T.2

0 '

0.3

O.O1

0.6

Feb.

0Do

0

O

O

O

0

0

O

O

O

O

0

0

0

0

O

O

O

*0

O

O

O

.1

*.l

.2

TT

_

_

-

0.5

O.O2

l.O

Mar.

O.3

.4

T

*]

#^

o'

.1

0

3.6

0.12

7.1

Apr.

O0"

0

0

0

0

*

75" !?

3.5

0.12

6.9

May

0.2 *7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

0D-

.1

.1

*0

o

0

0

o

0

0

0

0

O

0

o

0

0

o

0

1.4-

O.O5

2.8

June

(*)

(*)

-

O

O

o

July

(*)

O

0

o

Aug.

(*)

O

O

o

Sept.

(*)

-

0

0

o

Calendar year 195O : Max O.4 Mln O Mean 0.045 Ac-ft 33

Water year 1950-51 : Max O.7 Mln 0 Mean O.O3 Ac-ft 18

Peak discharge (base, 2O cfs). No peak above base. 

* Discharge measurement made on this.day.
20 TIA JUANA RIVER BASIN

Tla Juana River near Dulzura, Calif.

Location. Lat 32°33'50", long. 116°46'25", 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 mi, of which 62 sq mi are in Mexico.

Records available.--October 1936 to September 1951.

(iage. 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. 15 years, 21.9 cfs; median of yearly mean discharges, 10.5 crs.

Extremes. Maximum discharge during year, 0.3 cfs Apr. 28 (gage height, 2.47 ft); no flow 

during most of year.

1936-51: 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 during part of most years.

Remarks. Records good. Flow regulated by Morena Reservoir (see p. 16) and Barrett Reservoir (see p. 16 ) Water diverted outside drainage basins by Dulzura conduit (see 

P. 17).

Discharge, In cubic feet per second, water year October 1950 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.

(*)

0

0

0

Nov.

( )

-

0

0

0

Dec.

(»)

0

0

0

Jan.

(*)

( )

0

0

0

Feb.

0

fT

0

0

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

*0

1 ~^

_

_--

0.7

0.02

1.4

Mar.

0.2

.1

.1

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

0.5

0.02

1.0

Apr.

0

u

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

TT0.2

0.01

0.4

May

0

*M

TT

.1

0

0

0

0

0

0

0

0

9

0

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.3

0.01

0.6

June

( }

(*)

-

0

0 0

0

July

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

{*)

-

0

0

o

Calendar year 1950 : Max 1.2 Mln 0 Mean 0.054 Ac-ft 39

Water year 1950-51 : Max 0.2 Mln o Mean 0.005 Ac-ft 3.4

Discharge measurement made on this day.

Tia Juana River near Nestor, Calif.

Location.--Lat 32°32'55", long. 117°05 I 15", on line between sees. 3 and 4, T. 19 S., R.

V W., on right bank 1.5 miles south of Nestor and 3 miles upstream from mouth. 

Drainage area.--1,668 sq mi, of which 1,198 sq mi are in Mexico.

Records available.--October 1914 to September 1915, October 1936 to September 1951. 

Gage.--Water-stage recorder. Datum of gage 17.96 ft (revised) above mean sea level (levels

By International Boundary and Water Commission). Prior to October 1936, reference

point at same site at mean sea level datum. 

Average discharge.--16 years (1914-15, 1936-51), 67.4.cfs; median of yearly mean discharges,

20 el's.

Extremes.--No flow during year. 

 1336-51: Maximum discharge, 17,700 cfs Feb. 7, 1937 (gage height, 8.20 ft), from

rating curve extended above 2,000 cfs on basis of velocity-depth relation and cross

section after peak; no flow during parts of each year. 

Remarks.--No flow since Mar. 7, 1950. Observations of no flow generally made twice a month.

Flow regulated by Morena and Barrett Reservoirs, operated by city of San Diego, and by

Rodriquez Reservoir operated by Government of Mexico. Figures for the calendar year

1950 are as follows: Maximum daily discharge, 11 cfs; minimum daily, zero; mean, 0.21

cfs; runoff, 153 acre-ft.
OTAY RIVER BASIN 21

Jamul Creek near Jamul, Calif.

Location. Lat 32 <> 38 I 10", long. lie'SS'OS", in NEi sec. 4, T. 18 S., R. 1 E., 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 ml, approximately. 

Records available.--April 1940 to September 1951.

Gage.--Water-stage recorder and broad-crested weir with 5-ft venturi flume for low-water

 notch. Altitude of gage is 500 ft (from topographic map).

Extremes.--Maximum discharge during year, 363 cfs Feb. 16 (gage height, 2.62 ft); no flow

 during several months. , ^ .

1940-51: Maximum discharge, about 4,000 cfs Dec. 1, 1947 (gage height, 5.42 ft); 

no flow at times during some years.

Remarks. Records fair except those for periods of no gage-height record, which are poor.

 Discharge measurements made twice a month. Water diverted from Cottonwood Creek by 

Dulzura conduit discharges to Jamul Creek via Dulzura Creek and is included in discharge recorded at this station (see p. 17).

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In oublo feet per second)

.4

0

.9 

2.3 

6.2

0.6

.9

1.5

11

20

44

Discharge, In oublo feet per second, water year October 1950 to September 1951

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

28

29 

30

31

Total

Mean

Ao-ft

Dot.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

§

0

0

0

»

1/ a.i

1

J

6.7

jg

.5

.3

.3

.9

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

5.5 

5.0

1.0

31.1

1.00

62

Feb.

0.6 

.4

.4

.3

.tl

.2

.2

.2

.2

.2

.2

.4

.4

.2

.2

12^4.0

a2.o

ai.o

a. 7

.5

.5

.4

.3

.2

.3

5.0

1.7

:-

30.9

1.10

61

Mar.

1.1 

1.5

1.2

5.8

22

19

15

12

9.0

6.4

4.7

3.5

2.5

1.8

1.2

1.0

.9

.5

.4

.4

.3

.3

 ^T

.2

.2

.2

.2

a. 2 

a. 2

a. 2

112.3

3.62

223

Apr.

> aO.2

2.6

4.9

6.0

8.6

7.4

a8

a8

&

-

109.7

3.66

218

May

&

9.2

8.S

9.2

9.2

9.2

9.0

9.0

9.0

9.2

9.2

9.2

9.5

9.5

8.3

8.8

S.8

9.2

8.8

8.8

8.8

8.8

8.8

8.3

8.3

8.3

8.5

fct 8.3

279.3

9.01

554

June

7t4 l'.6

8.0

8.3

4.3

2.3

1.8

1.5

1.0

.4

.3

.3

.2

.2

.1

Q

0

0

0

0

0

0

0

0

0

0

0

0 

0-

52.9

1.76

105

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950 : Max 29 Mln o Mean 1.54 Ao-ft 1,120

Water year 1950-51 : Max 40 Mln o Mean 1.69 Ao-ft 1,220

a No gage-height record; discharge estimated on basis of 3 discharge measurements, weather records, 

and records for nearby stations.

256498 O - S3 - 3
22 SWEETWATER RIVER BASIN

Sweetwater Hiver at Loveland Dam, near Alpine, Calif.

Location. Lat 32°46'50", long. 116°47'40", in SW^NEv sec. 17, T. 16 S., R. 2 E., at Lovelana mm, 4 miles southwest of Alpine.

Drainage area.--100 sq mi.

Records available.--October 1944 to September 1951.

Gage.--Staff gage read once daily. Datum of gage is 1,215 ft above mean sea level.

Average discharge. 7 years, 3.67 cfs.

Remarks. Records of runoff represent all water reaching Loveland Reservoir, including 

rainfall on reservoir, computed on basis of records of storage, release (draft), spill, 

leakage, and evaporation. Capacity and area ratings for reservoir are dated April 1946. 

Capacity of reservoir at spillway level (gage height, 140.00 ft), 25,387 acre-ft. Dead 

storage, 123 acre-ft below lowest outlet at gage height -1.5 ft, included in these records. No diversion above reservoir. Water is released down Sweetwater River to Sweetwater Reservoir as required.

Cooperation. Records furnished by California Water & Telephone Co. 

Revisions (water years). W 1091: 1945, 1946.

Monthly runoff, October 1948 to September 1951

Month

December .................

Calendar year 1948 .....

Water year 1948-49 .....

November .................

December .................

Calendar year 1949 .....

May ......................

Water year 1949-5O.....

Calendar year 195O.....

Water year 1950-51 .....

Loveland Reservoir

Qage 

height 

(feet)t

7.84 

8.22 

8.42

-

9.45 

18.57 

28.22 

14. 2O 

4.84 

3.22 

4.33 

4.44 

4.37

-

4.31 

4.47 

5.04

-

5.70 

11.06 

22.20 

26.30 

28.75 

29.36 

28.93 

28.43 

27.94

-

27.61 

27.34 

27.32

-

27.32 

27.78 

28.44 

30.74 

32.55 

33.40 

33.08 

32.53 

32.13 

31.74

-

Contents 

(acrefeet)t

25O

257 

260

-

280 

501 

879 

382 

200 

177 

192 

194 

193

-

192 

195 

203

-

214 

312 

622 

790 

904 

935 

913 

889 

865

-

850 

837 

836

-

836 

858 

889 

,006 

,105 

,154 

,135 

,104 

,081 

1,059

-

Change 

In 

contents 

(acrefeet)

+7 

+3 

+20

-528

+221 

+378 

-497 

-182 

-23 

+15 

+2 

-1 

-1

-58

+3 

+8

+11

-66

+98 

+310 

+168 

+114 

+31 

-22 

-24 

-24 

-15

+658

-13 

-1 

0

+622

+22 

+31 

+117 

+99 

+49 

-19 

-31 

-23 

-22

+209

Draft 

(acrefeet)

0 

0

o

997

88 

0 

1,315 

731 

185 

O 

0 

0 

O

2,319

0 

0 

0

2,319

0 

0 

0 

0 

0 

0 

0 

0 

0

O

0 

0 

0

0

0 

0 

0

o

0 

0

0 

0 

0

0

Evaporation 

(acrefeet)

6 

6 

3

110

3 

6 

11 

5 

6 

7 

9 

9 

8

79

5 

5 

3

77

2 

5 

11 

17 

21 

28 

 3O 

28 

22

177

22

15 

11

212

8 

9 

18 

14 

26 

31 

35 

33 

26

248

Spill 

plus 

leakage 

(acrefeet)

0 

O

o

0

o

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

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Runoff 

(acrefeet)

13 

9 

23

579

312 

384 

829 

554 

168 

22 

11 

B 

7

2,340

8 

13 

14

2,330

100 

315 

179 

131 

52 

6 

6 

4 

7

835

9 

14 

11

834

30 

40 

135 

113 

75 

12 

4 

10 

4

457

t On first day of month.
SWEETWATER RIVER BASIN 23

Sweetwater River at Sweetwater Dam, Calif.

Location.--Lat 32°41'20", long. 117°00'35", in La Nacion Grant, at Sweetwater Dam, 6 miles 

east of National City, San Diego County, and 8 miles upstream from mouth.

Drainage area. 181 sq ml.

Kecoras available.--October 1887 to September 1951.

uage.--staff gage read once dally. Datum of gage Is 149.08 ft above mean sea level, datum

 of 1929.

Remarks.--Records of Inflow represent all water reaching Sweetwater Reservoir, Including 

rainfall on reservoir and Imported Colorado River water. Total Inflow Is computed on 

basis of records of storage, release (draft), spill, leakage, and evaporation. Colorado River water delivered to this reservoir through aqueduct of San Diego County Water 

Authority, as shown in table, Is Included In figures of total Inflow but Is excluded 

from figures of runoff from Sweetwater River basin. The first water from Colorado 

River reached this reservoir on Apr. 16, 1948. Capacity and area ratings for reservoir 

are dated December 1947. Capacity of reservoir at spillway level (gage height, 89.70 

ft), 27,689 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 Loveland 

Dam (see p. 22 ). 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.

HevlslonsTwater years).--W 811: 1928-32. W 1091: 1944-46.

Monthly runoff, October 1948 to September 1951

Month

Calendar year 1948

Mav

July. ...............

Water year 1948-49

Calendar year 1949

May.................

Water year 1949-50

Calendar year 195O

October 1951 ........

Water year 195O-51

Sweetwater Reservoir

Gage 

height 

(feet)t

33.71 

39.69 

40.01

-

42.25 

45.60 

47.37 

49.85 

51.63 

51.27 

49.00 

46,67 

43.97

-

40.77 

39.36 

40.02

-

41.83 

43.92 

46.00 

47.96 

48.77 

49.02 

48.70 

48.45 

47.72

-

46.99 

46.92 

4ff.47

-

50.23 

52.35 

53.92 

54.94 

55.90 

55.17 

53.12 

51.51 

50.81 

50.42

-

Contents 

(acrefeet)t

1,615 

1,808 

1,875

-

2,366 

3,184 

3,653 

4,365 

4,925 

4,809 

4,112 

3,463 

2,775

-

2,034 

1,743 

1,877

'-

2,269 

2,762 

3,288 

3,815 

4,045 

4,118 

4,024 

3,954 

3,748

-

3,550 

3,531 

3,959

-

4,482 

5,163 

5,700 

6,064 

6,418 

6,148 

5,423 

4,886 

4,662 

4,541

-

Change 

In 

contents 

(acrefeet)

+193 

+67 

+491

+235

+818 

+469 

+712 

+560 

-116 

-697 

-649 

-688 

-741

+419

-291 

+134 

+392

-97

+493 

+526 

+527 

+230 

+73 

-94 

-70 

-206 

-198

+1,516

-19 

+428 

+523

+2,213

+681 

+537 

+364 

+354 

-270 

-725 

-537 

-224 

-121

+991

Draft 

(acrefeet)

718 

729 

537

7,216

521 

503 

601 

678 

938 

1,078 

1,048 

1,088 

1,186

9,625

1,127 

833 

650

10,251

524 

450 

694 

871 

1,054 

1,172 

1,185 

1,207 

1,197

10,964

1,188 

741 

702

10,985

571 

493 

*750 

769 

925 

1,050 

1,097 

1,000 

906

10,192

Evaporation 

(acrefeet)

54 

61 

29

900

22 

37 

57 

95 

128 

156 

154 

147 

112

1,052

85 

67 

46

1,106

33 

35 

66 

92 

105 

146 

168 

158 

113

1,114

98 

69 

63

1,146

54 

62 

119 

110 

173 

198 

212 

165 

118

1,441

Spill 

plus 

leakage 

(acrefeet)

2 

2

1

22

1 

1 

1 

2 

1 

1 

1 

0 

0

r 13

0 

0 

0

8

0

o

0 

0

o

0 

0 

0 

0

0

0 

0 

0

0

0 

0 

0 

0 

0

o

0 

0

o

o

Total 

inflow 

(acrefeet)

967 

859 

1,058

8,373

1,362 

1,010 

1,371 

1,335 

951 

538 

554 

547 

557

11,109

921 

1,034 

1,088

11,268

1,050 

1,011 

1,287 

1,193 

1,232 

1,224 

1,283 

1,159 

1,112

13,594

1,267 

1,238 

1,288

14,344

1,306 

1,092 

1,233 

1,233 

828 

523 

772 

941 

903

12,624

Colorado 

River 

water 

imported 

(acrefeet)

928 

821 

932

7,707

936 

846 

900 

881 

935 

494 

512 

483 

522

9,190

870 

902 

935

9,216

932 

958 

1,242 

1,195 

1,226 

1,197 

1,197 

1,108 

1,049

12,811

1,230 

1,191 

1,232

13,757

1,233 

1,112 

1,233 

1,188 

803 

388 

664 

888 

881

12,043

Sweetwater 

River 

basin 

runoff 

(acrefeet)

39 

38 

126

666

426 

164 

471 

454 

16 

44 

42 

64 

35

1,919

51 

132 

153

2,052

118 

53 

45 

-2 

6 

27 

86 

51 

63

783

37 

47 

56

587

73 

-20 

0 

45 

25 

135 

108 

53 

22

581

t On first day of month.

* Estimated on basis of only two weeks' record.

Note. The runoff 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 runoff 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 runoff from Sweetwater River basin 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, particularly for months of 

very low runoff. The natural runoff during the current year was small.
24 SAN DIEGO RIVER BASIN

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 1951 (inflow to Cuyamaca Reservoir; rainfall 

on reservoir 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 once daily. Datum of gage is 4,600.2 ft above mean sea level (La 

ffesa, Lemon Grove, and Spring Valley Irrigation District bench mark).

Average runoff. 7 years (1944-51), 1,660 acre-ft per year (2.29 cfs).

Remarks.--Records of runoff represent all water reaching Cuyamaca Reservoir, including 

rainfall on reservoir, computed on basis of records of storage, release (draft), aplll, 

leakage, and evaporation. Capacity and area ratings for reservoir based on a resurvey 

made in 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 La Mesa, Lemon Grove, and Spring 

vaiiey irrigation District.

Revisions (water years).--W 1011: 1943.

Monthly runoff, October 1948 to September 1951

Month

April.......................

May.........................

July ........................

Water year 1948-49 ........

April.......................

May .........................

Water year 1949-50. .......

October 1950. ...............

May.........................

Cuyamaca Reservoir

Qage height 

(feet)t

9.0

-

10.42 

13.92 

17.79 

21.42 

20.42 

11.42 

9.75

-

\

-

11.33 

15.17 

17.00 

17.58

9.50

-

-

-

12.67 

13.00 

14.83 

14.08

-

Contents ( acrefeet )t

0 

0 

0

-

1 

84 

690 

1,847 

1,471 

5 

0 

0 

0

0

0 

0 

0

-

4 

211 

205 

644 

0 

0 

0 

0 

0

-

0 

0 

0

-

0 

26 

33 

165 

99 

0 

0 

0 

0 

0

-

Change 

In 

contents 

(acrefeet)

0 

0 

1

-3

+83 

+606 

+1,157 

-376 

-1,466 

-5 

0 

0 

0

0

0 

0 

+4

+3

+207 

+294 

+139 

+644 

0 

0 

0 

0 

0

0

0 

0 

0

-4

+26 

+7 

+132 

-66 

-99 

0 

0 

0 

0 

0

0

Draft 

(acrefeet)

0

0 

0

347

0 

0 

0 

324 

1,574 

0 

0 

0 

0

1,896

0 

0 

0

1,898

0 

0 

0 

775 

10 

0 

0 

0 

0

785

0 0 ' 

0

785

0 

0 

0 

190 

112 

0 

0 

0 

0 

0

302

Evaporation 

(acrefeet)

0 

0 

0

94

2 

21 

80 

165 

48 

1 

0 

0 

0

317

0 

0 

0

317

0 

28 

63 

55 

0 

0 

0 

0 

0

150

0 

0 

0

150

0 

5 

21 

26 

12 

0 

0 

0 

0 

0

64

Spill 

plus 

leakage 

(acrefeet)

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

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Runoff 

(acrefeet)

0 

0

1

438

85 

627 

1,237 

113 

156 

-4 

0 

0 

0

2,215

0 

0 

4

2,218

211 

322 

202 ise

10 

0 

0 

0 

0

935

0 

0 

0

931

26 

12 

153 

150 

25 

0 

0 

0 

0 

0

366

t On first day of month.
SAN DIEGO RIVER BASIN 25

San Diego River at El Capitan Dam, Calif.

Location. Lat 32°53'00", long. 116I> 48'30", in 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 1951. October 1936 to September 1946; recoras not equivalent owing to exclusion of greater part of flow released from Cuyamaca 

Reservoir.

Gage.--Staff gage read once daily. Datum of gage is 553.0 ft above mean sea level.

Remarks. Records of runoff represent all water reaching El Capitan Reservoir from basin 

or 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. Capacity and area ratings for reservoir are dated 

April 1935. Capacity of reservoir at spillway level (gage height, 197.00 ft), 116,448 

acre-ft. Dead storage, 147 acre-ft below lowest outlet at gage height 16.0 ft, included in these records. No significant diversion above reservoir. Flow regulated by 

Cuyamaca Reservoir (see p. 24). Water is released as required for municipal use and 

irrigation.

Cooperation.--Records computed in cooperation with city of San Diego.

Monthly runoff, October 1948 to September 1951

Month

July......................

Water year 1948-49......

Calendar year 1949 ......

May

July......................

Water year 1949-50......

Calendar year 1950......

July......................

Water year 1950-51 ......

El Capitan Reservoir

Qage height 

(feet)t

64.41 

64.33 

64.07

-

64.45 

67.89 

76.91 

84.38 

88.48 

92.65 

90.85 

88.75 

86.16

-

83.41 

81.25 

80.20

-

79.63 

80.06 

82.93 

84.02 

85.89 

84.76 

82.79 

81.17 

79.42

-

78.00 

76.63 

75.87

-

75.27 

76.02 

76.04 

74.58 

75.01 

74.21 

72.64 

66.18 

60.96 

59.07

-

Contents 

(aerefeet)t

5,650 

5,630 

5,565

-

5,660 

6,562 

9,291 

11,963 

13,618 

15,452 

14,642 

13,732 

12,664

-

11,592 

10,794 

10,419

-

10,218 

10,369 

11,412 

11,825 

12,556 

12,111 

11,359 

10,765 

10,145

-

9,657 

9,199 

8,950

r

8,756 

8,999 

9,005 

8,536 

8,672 

8,419 

7,933 

6,104 

4,824 

4,402

-

Change 

in 

contents 

(acrefeet)

-20 

-65 

+95

-4,305

+902 

+2,729 

+2,672 

+1,655 

+1,834 

-810 

-910 

-1,068 

-1,072

+5,942

-798 

-375 

-201

+4,558

+151 

+1,043 

+413 

+731 

-445 

-752 

-594 

-620 

-488

-1,935

-458 

-249 

-194

-1,462

+243 

+6 

-469 

+136 

-253 

-486 

-1,829 

-1,280 

-422

-5,255

Draft 

(acrefeet)

0 

13 

2

5,206

2 

2 

99 

63 

441 

543 

559 

729 

784

3,237

643 

355 

188

4,408

135 

89 

151 

271 

470 

513 

362 

403 

322

3,902

324 

213 

148

3,401

48 

140 

685 

658 

391 

207 

1,526 

1,118 

330

5,788

Evaporation 

(acrefeet)

102 

113 

38

1,574

24 

37 

93 

181 

236 

335 

347 

337 

275

2,118

167 

124 

73

2,229

47 

60 

108 

140 

179 

239 

247 

224 

174

1,782

173 

100 

80

1,771

54 

57 

118 

96 

156 

196 

208 

160 

114

1,512

Spill 

plus 

leakage 

(acrefeet)

0 

0 

2

42

4 

4 

5 

2 

0 

0 

0 

0 

0

17

0 

0 

0

15

0 

0 

0 

0 

1 

0 

0 

0 

0

1

0 

0 

0

1

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Runoff 

(acrefeet)

82 

61 

137

2,517

932 

2,772 

2,869 

1,901 

2,511 

68 

-4 

-2 

-13

11,314

12 

104 

60

11,210

333 

1,192 

672 

1,142 

205 

0 

15 

7 

8

3,750

39 

64 

34

3,711

345 

203 

334 

890 

294 

-83 

-95

-a

22

2,045

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 attrlbted 

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.
26 SAN DIEaO RIVER BASIN

San Vicente Creek at San Vicente Dam, at Foster, Calif.

Location. Lat 32°54'40", long. 116°55'35", in sec. 31, T. 14 S., R. 1 E., at left end of 

upstream -face of San Vicente Dam, 0.5 mile north of Foster.

Drainage area.--75 sq mi, approximately.

Records available. January to April 1915, October 1936 to September 1951. Published as 

at roster" prior to October 1941 and as "near Foster" October 1941 to January 1943.

Sage.--Staff gage read once daily. Datum of gage is 460.0 ft above mean sea level. January to April 1915, staff gage at about same site at different datum. October 1936 to 

Sept. 30, 1941, water-stage recorder at about same site at different datum. Oct. 1, 

1941, to Jan. 25, 1943, water-stage recorder at site 1 mile upstream at different datum.

Remarks.--Records of inflow represent all water reaching San Vicente Reservoir, not only 

from basin of San Vicente Creek, including rainfall on reservoir, but also imported 

Colorado River water. Total inflow is computed on basis of records of storage, release, 

(draft), spill, leakage, and evaporation. Colorado River water delivered to this reservoir through aqueduct of San Diego County Water Authority during year, as shown in 

table, is included in figures of inflow. Capacity and area ratings for reservoir are 

dated 1943. Capacity of reservoir at spillway level (gage height, 190.00 ft), 90,230 

acre-ft. Dead storage, 206 acre-ft. Dead storage, 206 acre-ft below lowest outlet at 

gage height 29.0 ft, included in these records. No diversion above reservoir. Water 

is released as required for municipal use.

Cooperation. Records computed in cooperation with city of San Diego. 

Monthly inflow, October 1948 to September 1951

Month

October 1948. .

Calendar year 

1948.

January 1949 . . 

February ......

September .....

Water year 

1948-49.

October 1949. . 

November ...... 

December. .....

Calendar year 

1949.

January 1950. . 

February. .....

September .....

Water year 

1949-50.

October 195O. . 

November ...... 

December. .....

Calendar year 

1950.

January 1951 . . 

February ......

September ..... 

October 1951. .

Water year 

1950-51.

San Vicente

Gage height 

(feet)t

133.13

-

143.63 

146.33

155.54

-

155.76 

155.85 

155.95

-

157.05 

159.93

148.16

-

145.96 

144.73 

144.34

-

143.64 

143.42

137.26

130.74- 

129.87

-

Reservoir

Contents 

( acrefeet )t

38,477

-

46,585 

48,785 

52 039

56,605

-

56,868 

56,868 

57,044

-

57,927 

60,520

50,359

-

48,539 

47,476 

47,152

-

46,585 

46,424

36,695 

36,117

-

Change

contents 

(acrefeet)

+1,774

+29,189

+2,200 

+3,254

+263

+18,391

0 

+176 

+883

+11,342

+2,593 

+1,725 

547

-1,820

-8,329

-1,063 

-324 

-567

-11,342

-161 

-482

-578

-12,422

Draft 

(acre-feet)

2,530

20,736

2,945 

1,774 

1 273

1 994

2,867

26,918

2,952 

3,073 

2,834

32,066

2,191 

2,404

4,300

43,448

3,721 

3,625 

3,924

45,859

4,232 

3,867

4,057

3,897

48,305

Evaporation 

( acre - 

feet)

318

4,165

62 

87 

222

552

4,507

421 

274 

174

4,567

79 

125

500

4,688

342 

200 

180

4,541

119 

138

357

3,584

Spill

leakage 

(acrefeet)

o

0

0

o

o

0

o

0

o

0

o

0

0

o

0

o 

o

0

0

o

o

0

0

0

Total

inflow 

(acrefeet)

4,622

54,090

5,207 

5,115

3,682

49,816

3,373 

3,523 

3,891

47,975

4,863 

4,254

2,980

39,807

3,000 

3,501 

3,537

39,058

4,190 

3,523 

3,286

2,903

2,888

3,676

39,467

Colorado

included 

(acre-feet)

4,577

54,746

4,722 

4,657

3,552

47,867

3,488 

3,321 

3,945

45,977

4,630 

4,009

2,899

38,496

3,183 

3,619 

3,689

38,233

3,989 

3,475

3,037

2,991

3,694

39,709

t On first day of month.

Note. Runoff from basin of San Vicente Creek is equal to algebraic sum of (l) change in contents, 

(2) draft, (3) evaporation, and (4) spill plus leakage, minus (5) the quantity imported from Colorado River. However, computation of runoff from San Vicente Creek basin using figures in above 

table gives results that may be seriously in error, frequently being negative. This arises primarily 

from the difficulty of computing runoff from San Vicente Creek basin as the residual of several 

larger quantities which are not susceptible of measurement with a precision necessary to produce a 

final answer within reasonable limits of accuracy. The natural runoff from this basin during above 

years was small. Colorado River water, conducted to San Vicente Reservoir by San Diego aqueduct, is 

measured at head of aqueduct rather than at point of discharge into reservoir.
SAN DIEOO RIVER BASIN 27

San Diego River near Santee, Calif.

Location. Lat 32°49'20", long. 117 0 03'25", in Ex Mission San Diego Grant, on right bank 

in Mission Gorge, 6 miles west of Santee, San Diego County.

Drainage area.--380 sq mi.

Records available. May 1912 to September 1951 (incomplete prior to 1920).

Gage. Water-stage recorder and unfinished rubble dam control. Altitude of gage is 205 

Ft (from topographic map). Prior to Nov. 10, 1920, staff gage at site ij miles upstream 

at different datum.

Average discharge. 36 years (1912-15, 1917-18, 1919-51), 32.2 cfs; median of yearly mean 

discharges, t>.4 cfs.

Extremes. Maximum discharge during year, 1.8 cfs Mar. 1 (gage height, 0.26 ft); practically 

no now during most of year.

1912-51: Maximum discharge, 70,200 cfs Jan. 27, 1916 (gage height, 25.1 ft, site 

and datum then in use); practically no flow for several months each year except for a 

small amount of ground water that was forced to the surface.

Remarks. Records fair. Discharge measurements generally made twice a month. Flow regu- 

"lafed by El Capitan, Cuyamaca, and San Vicente Reservoirs (see pp 25,24,26). Diversions

above station by city of San Diego for municipal supply and by La Mesa, Lemon Grove,

and Spring Valley Irrigation District.

Discharge, In cubic feet per second, water year October 1950 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

Ae-ft

Oct.

0

0

0

Nov.

0

O

o

Dec.

0

O

0

Jan.

0

0

0

Feb.

O

0

O

Mar.

0.3

.g

.1

oa

o

o

o

o

o

o

0

0

0

0

o

o

o

0

0

0

0

0

0

0

0

0

0

o

0

0

0.6

0.02

1.2

Apr.

0

0

o

May

0

0

o

June

o

0

O

July

0

0

o

Aug.

0

0

0

Sept.

0

O

0

Calendar year 1950: Max 9.1 Mln 0 Mean 0.089 Ac-ft 65 

Water year 1950-51: Max 0.3 Mln 0 Mean O.OOZ Ac-ft 1.2

Note. During the period October to June, days Indicated as zero In the above table actually had a 

very small flow of about 0.01 cfs based on 15 discharge measurements. This small flow did not occur 

July to September.
28 SAN DIEQUITO RIVER BASIN

Santa Ysabel Creek near Mesa Orande, Calif.

Location. Lat 33°07'25", long. 116°47'45 n , about on line between sees. 17 and 20, T. 12 

b., K. 2 E., on left bank 0.5 mile upstream from Black Canyon Creek, 1 mile downstream 

from unfinished Sutherland Dam, and 4 miles southwest of Mesa Orande.

Drainage area.--58 sq mi, approximately.

Records available. December 1912 to September 1928, October 1936 to September 1951.

Page.--Water-stage recorder and broad-crested weir. Altitude of gage is 1,700 ft (from 

Topographic map). Prior to Oct. 1, 1936, water-stage recorder at site 1 mile upstream 

at several different datums.

discharge. 30 years (1913-28, 1936-51), 27.0 cfs; median of yearly mean disonarges, ia ers.

Extremes. Maximum discharge during year, 78 cfs Jan. 30 (gage height, 1.74 ft); no flow 

during several months.

1912-24, 1936-51: Maximum discharge, 21,000 cfs Jan. 27, 1916, by slope-area method1 ; 

no flow at times during most years.

Remarks. Records good. Discharge measurements generally made twice a month. Small diTeWions above station.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.65

.8 

1.0 

1.2

0 

.3

1.7 

3.5

1.3 

l.i

1.5

1.6

5.9

12

24

42

Discharge, In oublo feet per second, water year October 1950 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

Ao-ft

Oct.

0

0

0

NOV.

0

0

0

Dec.

0

0

0

Jan:

0

^

0

0

0

0

0

0

0

0

.7

10

2.8 i.-e

1.4

1.4

1.6

1.3

2.3

3.0

1.9

1.6

1.4

1.3

1.3

1-.2

1.3

1.6

9.0

30

T.2

86.0

2.77

171

Feb.

4.8

3.5

2.9

2.4

2.2

2.1

1.9

1.7

1.6

1.6

1.5

771

2.8 

1.7

1.5

1.6

1.7

1.7

2.7

2.1

1.8

2.1

2.4

2.4

2.1

2.2 w_

_-

71.8

2.56

142

Mar.

8.0

11

10

7.9

7.4

10

12

TT

9.2

8.5

7.4

5.5

4.8 

4.2

3.8

3.8

3.6

3.3

2.8

2.6

2.6

1.8

1.3

1.0

1.5

1.5 

1.2

1.0

1.2

1.2

152.0

4.90

301

Apr.

1.1

1.0

1.0

1.3

1.5

1.4

1.6

1.6

1.3

1.4

1.3

1.0

7*

.7

.6

.8

.7

.7

1.0

1.3

1.1

1.3

1.4

2.8

7.9

3.8

2.6

12

TT

66.8

2.23

132

May

14

475

3.6

2.9

2.4

2.0

2.1

1.6

1.3

1.4

1.4

1.4

1.4 

1.4

1.4

1.4

1.3

.9

.7

.6

.6

.7

.6

.5

.3

.3

.1 

.1

0

0

43.8

1.41

87

June

0

^

0

0

0

"^J >1§

.1

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

-

0.3

0.01

0.6

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 53 Mln 0 Mean 2.20 Ao-ft 1,590

Water year 1950-51: Max 30 Mln 0 Mean 1.15 Ao-ft 834

Peak discharge (base. 110 ofs). No peak above base.
SAN DIEOUITO RIVER BASIN

Santa Ysabel Creek near Ramona, Calif.

Location -Lat 33«06'20", long. 116«51'30", in NE* sec. 27, T. 12 S., R. 1 E., on left bank 

1.8 miles downstream from Temescal Creek and 4.5 miles north of Ramona.

Drainage area.--llO sq mi.

Records available. February 1912 to February 1923, October 1943 to September 1951.

.--Water-stage recorder. Datum of gage is 847.88 ft abpve mean sea level (levels by 

fcn Diego Water Department). Prior to Jan. 31, 1916, staff gage at site half

IRtPfiQm ftr. nl ff»r»«w4: /4a+Mini Tav* OT 1 ai e 4.^ T« i i nm -JL_«« ___ _-j

,ity of San w .»,ev «ouoi MVJWWWUII,/ , mor to oan. oj., j.sj.o, Btarr gage ac site na 

a mile upstream at different datum. Jan. 31, 1916, to Jan. 1, 1921, staff gage and recording gage at same site and datum.

Average discharge. 18 years (1912-22, 1943-51), 32.8 cfs; median of yearly mean discharges, 

a.o era.

Extreigs. Maximum discharge during year, 130 cfs Jan. 30 (gage height, 8.10 ft); no flow aOrTJIg several months,

1912-23, 1943-51: Maximum discharge, 28,400 cfs Jan. 27, 1916 (gage height, 14.0 

ft); no flow during parts of some years.

Remarks. Records good. Discharge measurements generally made twice a month. Small diver- sions above station.

Rating table, water ye»r 1950-51 (gags height, in feet, 

and discharge, in oublo feet per second)

0.55 

.6 

.7 

.8

0

.1 

1.1 

5.7

0.9 

1.1

1.4 

1.6

7.7

21

47

68

Discharge, in oublo feet per eeoond, water year October 1950 to September 1951

My

i

2

S

4

5

6

7

e

9

10

11

12

IS

14

15

ie

17ie

19

20

21

22

2S

24

25

26

27

26

29

SO

31

Total

Mean

Ao-ft

Oot.

0

0

0

Nov.

0

0

0

Deo.

0

0

0

Jan.

~7T 0.1

.1.1.1

.1.1.1.1 .1

2.1

4.2

6.7

2.7

1.5

1.5

1.5

1.5

1.9

4.5

3.0

2.4

1.9

1.7

1.3

1.1

1.3

1.5

11

83

n

130.3

4.20

256

Feb.

7.3

8.1

4.9

4.1

3.3

3.0

2.7

2.4

H

2.2

3.0

4.9

3.7

2.2

2.4

2.7

2.7

3.7

3.7

3.0

2.7

3.0

3.0

2.7

2.7

6.9

9.0

m

-

102.4

3.66

203

Mar.

9.6

TB" 18.

14

12

12

13

12

9.6 

8.3

7.3

6.5

6.7

5.3

4.9

4.9

4.5

4.1

4.1

3.7

3.7

3.3

2.2

1.5

lol

1.5

2.2

1.9

1.7

1.7

1.9

197.4

6.37

392

Apr.

2.2

1.7

1.7

2.7

3.3

4.1

3.3

3.3

2.7 

2.7

2.4

1.9

1.3

170"

1.0

1.0

1.0

1.0

1.1

1.7

2.2

1.9

2.7

4.3

15

11

7.3

27

IE

142.5

4.75

283

May

13

T.7

6.3

4.1

3.3

3.0

3.0

2'. 4

1.7 

1.7

2.2

2.2

2.7

3.3

5.3

1.4

1.9

1.3

.7

.5

.4

.4

.3

.3

.2

.1

aTT

a.l

a.l

a.l

.1

71.6

2.31

142

June

0.1

T

^

.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

1.1

0.04

2.2

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 110 Mln 0 Mean 3.24 Ao-ft 2.350

Water year 1950-51 1 Max 63 Mln 0 Mean 1.77 Ao-ft 1,280

Peak dleoharge (baae. 110 of a). Jan. 30 (4 a.m.) ISO ofs (2.10 ft), 

a no gage-neignt reooraj aisonarge Interpolated.
30 SAN DIEGUITO RIVER BASIN

Santa Ysabel Creek near San Pasqual, Calif.

Location I. at 33 0 05'00", long. 116°55'00 n , in SE£ sec. 31, T. 12 S., R. 1 E. , on left 

Dame 1.5 miles downstream from Roden Canyon and 2 miles east of San Pasqual.

Drainage area. 128 sq mi.

u7 to September 1951 (irrigation seasons only). December 1905 

published as "near Escondido"), April 1947 to September 1951 (irri- T.O nnfoh aeptenmer 1

gation seasons only).

Gage . Water-stage recorder and concrete control. Altitude of gage is 500 ft (from topographic map). December 1905 to September 1912, staff gage at site a quarter of a mile 

downstream at different datum.

Remarks . Records good. Discharge measurements generally made twice a month during season. 

small diversions above station.

Rating table, water year 195O-51, Irrigation season only (gage height, In feet, 

and discharge, In cubic feet per second)

0.5

.7

0.9

1.0

1.1

.7 

1.3 

2.1

1.3 

1.5 

1.7

4.7 

9.2

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

O 

0 

0

Nov.

0

73

0

0

0

0

0

0

0

0

0

0

0

0

0

O

0

0

.1

0

0

0

0

0

0

0

0

0

O

0

-

0.1 

0.003 

0.2

Dec.

Calendar year : Max

Jan. Feb.

Mln

Mar. Apr.

_

_

_

_

_

_

_

_

-

_

_

_

-

_

tl.l

-

_

_

-

_

_

_

t22

-

Mean

May

15

TO

7.6

6.6

5.4

4.5

3.9

3.5

2.6

2.2

2.4

2.6

2.7

3.3

5.4

4.7

2.7

1.9

1.2

.8

.7

.5

.4

.4

.3

.2

.2

.1

T

.1

.1

92.1 

2.97 

183

June

i 0 

0 

0

July

0 

0 

0

Ac-ft

Aug.

0 

0 

0

Sept.

0 

0 

0

Water year : Max Mln Mean Ac-ft

t Result of discharge measurement.
SAN DIEGUTTO RIVER BASIN 31

Guejito Creek near San Pasqual, Calif.

Location. Lat 33°06'55", long. 116 0 57'10", in NE£ sec. 23 (unsurveyed), T. 12 S., R. 1 W., 

on left bank 2 miles north of San Pasqual.

Drainage area. 24 sq mi, approximately.

Records available. December 1946 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 700 ft (from topo- 

 graphic map).

Extremes. Maximum discharge during year, 45 cfs Jan. 29 (gage height, 2.49 ft); practical - 

ly no flow during several months

1946-51: Maximum discharge, that of Jan. 29, 1951; practically no flow during 

periods of most years.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Diversion for irrigation about a quarter of a mile above station.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.8 

1.2 

1.6 

1.9

1.9 

3.6 

6.0 

9.4

Discharge, In cubic feet per second, water year October 1950 to Septemoer 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.

( )

C)

0

0

0

NOV.

0

7J

0

0

0

0

0

0

0

o

0

0

0

*.l

0

0

0

0

.2

TT

0

0

0

0

0

0

0

0

o

*0

-

0.4

0.01

0.8

Dec.

0

7J

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

_.!

.1

.1.1

.1

.1

.1.1

.1 «.l

.1

.1

1.2

0.04

2.4

Jan.

0.1

^1

.1

.1

.1

.1

.1

.1

.1

.1

1.0

*2.1

1.1

.6

.5

.6

.5

.4

.7

.6

.4

.4

.4

.3

.3

«.3

.3

.4

7.7

'BTff

 1.5

27.9

0.90

55

Feb.

0.9

.7

.6

.6

.6

.6

.5

.5

.47j

.4

1.0

77

.6

*.4

.5

.6

a. 9

a. 8

a. 6

a. 5

a. 8

a. 8

a. 8

a. 6

a. 6

a. 9

«.8

_

.

-

18.1

0.65

36

Mar.

1.2

~32.1

.7

.6

.6

.6

.5

.5

.5

.4

.3

.3

«.3

.3

.3

.3

.3

.2

72

.2

.3

*.2

.2

.2

..3

.3

.3

.2

.3

.3

13.9

0.45

28

Apr.

0.3

.2

75

.4

.5

.6

.6

.5

.4

.3

.3

.2

.2

.2

.2

.2

.2

*.2

.2

.3

.3

.2

.2

.3

.7

2.4

.9

.6

8.4 «T75

27.8

0.93

55

May

1.4 ~7S

.6

.5

.4

.4

.3

.3

.3

.3

.3

.3

.2

.4

.3

.2

*.2

.2

.1

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

8.7

0.28

17

June

*0.1

o'

0

3

o

0

.1

.1

o

0

*0

0

0

0

o

0

0

o

0

0

0

0

0

o

0

0

o

0

0

-

0.4

o.oi

0.8

July

( )

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

-

0

0

o

Calendar year 1950: Max 12 ttLn 0 Mean O.306 Ac-ft 222

Water year 1950-51: Max 8.4 mn 0 Mean O.27 Ac-ft 195

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of records for Santa Ysabel Creek near Mesa 

Orande.
32 SAN DIEQUITO RIVER BASIN

Ouejito Creelc at San Pasqual, Calif.

Location. Lat 33 8 05'35", long. 116°57'45", in NWi sec. 35, T. 12 S., R. 1 W., on right

 bank at mouth, at highway bridge 1 mile west of San Pasqual.

Drainage area. 28 sq mi, approximately.

Keoorg's available. --February to September 1915, October 1916 to September 1917, and Octooer I94b to September 1951. Published as "near Escondido" prior to October 1946. 

Gage. Water-stage recorder. Altitude of gage is 410 ft (from topographic map). Prior

Eo October 1946, staff gage at same site at different datums. 

Average discharge.--6 years (1916-17, 1946-51), 0.47 cfs. 

Extremes.--maximum discharge during year, IS cfs Jan. 29 (gage height, 2.58 ft); no flow

during most of year.

1915, 1916-17, 1946-51: Maximum daily discharge, 118 cfs Feb. 10, 1915, estimated;

no flow during several months of each year. 

Remarks. Records fair. Discharge measurements generally made twice a month. Diversion

SETJut 2 miles above station for irrigation.

Rating table, water year 19SO-S1 (gage height, in feet, 

and dleoharge, in oubio feet per second).

1.5

1.6

1.7

1.8

1.9

2.0

0.6 

1.2 

2.2

Discharge, in oubio feet per eeeond, water year Ootober 1950 to September 1951

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

Dot.

0

0

0

Nov.

0

0

0

Deo.

-

0

0

0

Jan.

0

ff

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

1.6

TT

0

2.0

0.06

4.0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

ff

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

.1

.8

ii

-

1.9

0.06

3.8

May

0

0

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

c

c

c

Calendar year 1950: Max 0.5 Mln 0 Mean 0.012 Ao-ft 9.0

Hater year 1950-51: Max 1.6 Mln 0 Mean 0.01 Ao-ft 7.8
SAN DIEGUITO RIVER BASIN 33 

Santa Maria Creek near Ramona, Calif.

Location. Lat SS'OS'IS", long. 116°56'55", in SE$ sec. 11, T. 13 S., R. 1 W., on left 

DanK 4 miles upstream from mouth and 5 miles west of Ramona.

Drainage area.--56 sq mi, approximately.

Records available.--November 1912 to September 1920, October 1946 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 1,280 ft (from topographic map). Original installation destroyed by flood of Jan. 16, 1916; rebuilt at 

same site at different datum.

Average discharge.--12 years (1913-20, 1946-51), 7.03 cfs; median of yearly mean discharges, 

i.I crs,

Extremes.--No flow during year.

 1912-20, 1946-51: Maximum discharge, 7,140 ofs Jan. 27, 1916 (gage neight, 15.9 ft, 

datum then in use), by slope-area method; no flow during several months of each year.

Remarks.--No flow since Mar. 26, 1950, City of Ramona pumps water from stream above

STiaTion for municipal supply. Figures for the calendar year 1950 are as follows: Maximum daily discharge, 0.2 ofs; minimum daily, zero; mean, 0.002 cfs; runoff, 1.2 aore-ft.

San Dieguito River near San Pasqual, Calif.

Location.--Lat 330 04 | 00", long. 117c> 02i05"', 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.

Records available.--Apr11 1947 to September 1951 (irrigation seasons only).

Gage.--Water-stage recorder. Altitude of gage is 325 ft (from topographic map).

Remarks,--No flow during periods Oct. 1 to Nov. 30 and May 1 to Sept. 30. Diversions for 

Irrigation and pumping from wells along river in San Pasqual Valley,
34 SAN DIEGUITO RIVER BASIN

San Dlegulto River at Lake Hodges, Calif.

Location. Lat 33°02'40", long. 117°07'40", in NW^ sec. 18, T. 13 S., R. 2 W., on right 

 bank 800 ft upstream from Lake Hodges Dam and 5.5 miles southwest of Escondido.

Drainage area. 303 sq mi.

Records available. January 1916 to September 1951. Published as "near Bernardo" prior tc 

uciJODer isau and as "near Escondido October 1920 to September 1925.

Sage. Staff gage read once daily. Datum of gage is 200.0 ft above mean sea level. Prior 

fTo January 1919, staff gage at same site at different datum (prior to completion of 

dam).

Remarks. Records of total inflow represent all water reaching Lake Hodges, including rainran on lake, computed on basis of records of storage, release (draft), spill, leakage, 

evaporation, and supplemental water from other sources. Supplemental water delivered 

to this lake includes Colorado River water delivered through aqueduct of San Diego 

County Water Authority, water diverted from San Luis Rey River basin, and ground-water 

pumped from areas adjacent to lake. Revised capacity and area ratings for lake are 

based on resurvey in 1948. Capacity of lake at spillway level (gage height, 115.00 ft), 

33,550 acre-ft (revised). Dead storage, 1,160 acre-ft (revised) 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 conduit to San Dieguito reregulating reservoir, from which it is released as required for municipal use.

Cooperation. Records computed in cooperation with city of San Diego. 

Revisions (water years).--W 1091: 1946. W 1121: 1947.

Monthly runoff, October 1948 to September 1951

Month

October 1948 

November .... 

December ....

January 1949 

February. . . .

August ...... 

September . . .

Water year 

1948-49.

October. .... 

November .... 

December ....

Calendar 

year 1949 .

January 1950 

February. . . .

August. ..... 

September . . .

Water year 

1949-50. 

October 195O 

November .... 

December ....

Calendar 

year 1950.

January 1951 

February ....

May.........

August. ..... 

September . . . 

October 1951

Water year 

1950-51.

Lake Hodges

Gageheight 

(feet)t

65.40 

62.40 

59.18

63.70 

69.11 

71.65 

75.80 

78.59 

78.56 

78.18 

77.37 

74.61

-

73.16 

72.01 

72.91

-

73.35 

72.97 

72.34 

72.00 

72.83 

72.89 

71.93 

70.07 

69.49

-

67.00 

62.77 

61.39

-

61.66 

61.26 

64.16 

66.24 

67.38 

68.66 

68.78 

68.51 

67.93 

65.98

-

Contents 

(acrefeet)t

3,098 

2,483 

1,898

2,740 

3,955 

4,602 

5,846 

6,816 

6,816 

6,672 

6,390 

5,466

-

5,048 

4,710 

4,962

-

5,106 

4,990 

. 4,794 

4,710 

4,934 

4,962 

4,683 

4,206 

1 4,055

-

3,460 

2,561 

2,292

-

2,348 

2,273 

2,842 

3,276 

3,552 

3,858 

3,882 

3,810 

3,667 

3,230

-

Change 

In 

contents 

(acrefeet)

-615 

-585 

+842 

+1,215 

+647 

+1,244 

+970 

0 

-144 

-282 

-924 

-418

+1,950

-338 

+252 

+144

+2,366

-116 

-196 

-84 

+224 

+28 

-279 

-477 

-151 

-595

-1,588

-899 

-269 

+56

-2,758

-75 

+569 

+434 

+276 

+306 

+24 

-72 

-143 

-437

-230

Draft 

(acrefeet)

592 

622 

464

251 

298 

324 

718 

1,113 

1,101 

1,212 

1,170 

1,139

9,004

1,095 

619 

493

9,533

314 

248 

579 

889 

922 

1,055 

1,158 

1,279 

1,109

9,760

1,130 

617 

371

9,671

580 

337 

763 

1,010 

871 

1,090 

1,170 

1,180 

916

10,035

Evaporation 

(acrefeet)

65 

66

19

10 

22 

69 

115 

148 

199 

205 

201 

156

1,275

122 

83 

54

1,384

21 

32 

73 

92 

119 

151 

153 

143 

104

1,147

80 

44 

32

1,044

27 

31 

69 

61 

101 

118 

134 

120 

93

910

Spill 

plus 

leakage 

(acrefeet)

0 

o 

0

0 

0

1 

1 

1 

1 

3 

1 

1

9

1

1

12

1 

0 

1 

0 

0 

0 

0 

0 

0

5

0 

0 

0

2

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Total 

Inflow 

(acrefeet)

42 

103 

1,325 

1,476 

967 

1,638 

1,804 

1,262 

1,157 

1,138 

448 

878

12,238

880 

955 

692

13,295

220 

84 

569 

1,205 

1,069 

927 

834 

1,271 

618

9,324

311 

392 

459

7,959

532 

937 

1,266 

1,347 

1,278 

1,232 

1,232 

1,157 

572

10,715

Colorado 

River 

water 

Included 

(acrefeet)

O 

118 

965

436 

0 

0 

846 

1,225 

1,149 

1,151 

419 

885

7,194

929 

900 

652

8,592

61 

0 

512 

1,304 

1,142 

1,024 

804 

1,299 

612

9,239

284 

318 

400

7,760

400 

839 

1,250 

1,212 

1,262 

1,240 

1,260 

1,149 

606

10,220

San Luls 

Rey 

River 

water 

Included 

(acrefeet)

0 

0 

133 

772 

849 

929 

534 

0 

0 

0 

0 

0

3,217

72 

67 

40

694

0 

0 

0 

0 

0 

10 

79 

63 

61

392

0 

0 

0

0

0 

0 

0 

0 

0 

0 

O 

0 

0

0

Pumped 

ground - 

water 

Included 

(acrefeet)

0 

18 

140 

91 

0 

0 

4 

53 

114 

87 

88 

78

673

0 

0 

0

3,084

0 

0 

0 

0 

0 

0 

0 

0 

0

0

63 

59 

58

393

61 

54 

75 

96 

83 

91 

96 

90 

50

876

t On first day of month.

Note. Runoff from basin of San Dlegulto River Is equal to total Inflow as shown In table minus sum 

of the three elements of supplemental water as shown In last three columns of table. However, as 

thus computed the results may be seriously In error, frequently being negative. This arises primarily from the difficulty of computing runoff from the basin as the residual of several larger quantities which are not susceptible of measurement with a precision necessary to product a final answer 

within reasonable limits of accuracy. The natural runoff for this basin during the three years presented was small.
SAN LUIS KEY RIVER BASIN 35

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

Location. Lat 33"14'15", long. 116°45'50", in NWi sec. 10, T. 11 S., R. 2 E., at Henshaw 

Dam, 5 miles north of Mesa Grande.

Drainage area. 209 sq mi at Henshaw Dam.

Records available.--January 1923 to September 1951. October 1911 to January 1923 at site 

i mne downstream, published as "near Mesa Grande"; records not equivalent due to 

creation of lake.

Gage.--Staff gage read once daily. Datum of gage is 2,620 ft above mean sea level. Prior 

fo June 13, 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), 60.4 cfs, below dam site; 29 years (1922-51), 33.7 

crs, inriow to Lake Henshaw, exclusive of 90 percent of rainfall on lake surface; median 

of yearly inflow, 19 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. 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 (revised). No 

dead storage (revised). Since storage of water was begun, runoff as computed has been 

exclusive of 90 percent of rainfall on water surface of lake. The amount of rainfall 

excluded was 1,591 acre-ft during water year 1949-50 and 541 acre-ft during water year 

1950-51. 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.--Basic records furnished by Vista Irrigation District.

Monthly runoff, October 1949 to September 1951

Month

Calendar year 1949

January 1950 ........

May..'. ..............

June ................

Water year 1949-50

Calendar year 1950

September ...........

Water year 1950-51

Lake

Gage 

height 

(feet)t

57 25

-

57 12

39 5O

-

-

19.90

-

ienshaw

Contents 

(acrefeet)t

-

28,179

-

-

178

-

Change

contents 

(acrefeet)

*OC

-22,766

-23,111

-22,874

-42

-5,712

(acrefeet)

23,445

250

21,791

22,066

2,260

19,990

Net

ration 

(acrefeet)

+225

+10,546

+6,087

+6,048

+38

+1,324

Spill

leakage 

(acrefeet)

0

O

0

o

o

Pumped

water 

included 

(acre-feet)

-

-

637

2,194

13,564

(acrefeet)

11,225

615

522

565

385

183

4,767

217

4,603

292

428

-124

124

181

62

2,038

t On last day of month.

Note.--Net evaporation, as used in computing this record, is total evaporation less 9O percent of 

rainfall on water surface of reservoir. Supplemental water obtained by pumping ground water from 

area adjacent to lake is subtracted from inflow to obtain runoff. However, as thus computed the 

results may be considerably in error, occasionally being negative. 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 precision necessary to produce final answer within reasonable limits 

of accuracy.
36 SAN LUIS REY RIVER BASIN

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

Location. Lat 33"21'30", long. 117 e02'50", in SWi sec. 25, T. 9 S., R. 2 W., on right 

BBnTTbelow Pala diversion dam, 1.8 miles east of Pala.

Drainage area.--326 sq mi.

Records available. May 1944 to September 1951 (irrigation seasons only).

Page. Water-stage recorder. Altitude of gage la 500 ft (from topographic map).

Remarks.--Records fair. Discharge measurements generally made twice a month during seaSTSnT Flow regulated by Lake Henshaw (capacity, 203,000 acre-ft). Diversions above 

station mainly by Escondido Mutual Water Co. Office of Indian Affairs, Irrigation 

Service, diverted about 20 acre-ft during period Oct. 1 to Nov. 30 and about 240 acreft during period Apr. 1 to Sept. 30 at Pala diversion dam above station. In the accompanying table are shown results of discharge measurements of San Luis Rey River 

above Pala diversion dam made during water year 1950-51.

Date

Nov. 6

29 

30 

Deo. 11

Discharge 

ofs

0.95 

1.53 

tl.7 

1.90

Date

Feb. 28 

Mar, IS 

Apr. S

13

Discharge 

ofs

t2.9 

2. 36

2. SO 

tl.9

Date

Apr. 27

May 14

21 

June 11

Discharge 

ofs

2.13 

2.14

1.76 

1.57

Date

July 17 

Aug. 20 

Sept. 12 

26

Discharge 

ofs

O.SS 

.16 

.40 

.36

t Measurement furnished by Santa Margarlta Ranch (U. S. Navy) and Pauba Ranch.

Discharge, in oublo feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

S

6

7

S

9

10

11

12

13

14

15

16

17

16

19

20

21

22

23

24

26

26

27

26

29

SO

31

Total

Mean

Ao-ft

Oot.

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

.1

.2

1.0 1.1

.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

2.9

0.10

5.6

Deo. Jan. Feb. Mar. Apr.

S0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

.2

 6*

7T0.9

0.03

1.6

May

^

0

'00

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year t Max Mln Mean Ao-ft 

Hater year i Max Mln Mean Ao-ft
SAN LUIS KEY RIVER BASIN 37

San Luls Rey River at Monserate Narrows, near Pala, Calif.

Location. Lat 33°20'15", long. 117 e08 t 10", in NE$ sec. 6, T. 10 S., R. 2 W., on left bank 

 res southwest of Pala and 6 miles northeast of Bonsall.

Drainage area.--363 sq ml.

Records available.--December 1935 to tterch 1936 (fragmentary), April 1938 to November 1941, 

ucuooer laso uo September 1951.

Gage.--Water-stage recorder. Altitude of gage is 270 ft (from topographic map). Prior to 

iJctober 1946, at same site at different datum.

Average discharge. 6 years (1936-41, 1946-51), 15.1 of a.

Extremes.--ttexlmum discharge during year, 6.0 cfs Jan. 30 (gage height, 1.37 ft); no flow 

auflHf several months.

1935-41, 1946-51: Maximum gage height, 8.7 ft Feb. 7, 1937, datum then in use (discharge not determined); no flow at times during 1948-51.

Remarks. Records good except those for period of no gage-height record, which are fair.

 uiscnarge measurements generally made twice a month. Flow regulated by Lake Henshaw 

(see p. 36 ). Several diversions above station (see records for station "below Pala diversion dam, near Pala," p.36 ).

Discharge, in oubio feet per second, water year October 1960 to September 1951

Day

1 

2

S

4

5

6

7

e

9

10

11

12

IS

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

SI

Total Mean

Ao-ft

Oo t.

0

0

0

NOV.

0

0

0

Deo.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.6

.9 1.1

1.3

1.4

1.5

1.6

1.7

1.8

1.8

1.8

1.9

17.4

0.56

35

Jan.

1.9 

1.9

1.9

1.9

l.S

1 7

T75

2.0

2.0

2.0

2.2

2.2

2.0

2.2

2.2

2.2

2.0

2.0

2.0

2.0

2,2

2.3

2.3

2.4

2.4

2.8

2.7

3.0

3.8

5.4

5.6

74.7

. 2.41

148

Feb.

fc*

4.0

3.8

3.8

3.8

3.8

5.8

5.8

S.7

3.7

3.8

3.8

3.7

3.7

3.7

5.7

3.7

5.7

3.7

5.8

3.8

3.8

3.7

3.7

3.6

3.5

.

t.

-

108.3

3.80

211

Mar.

3.8 

3.8

3.8

S.7

3.8

5.8

4.0

3.6

4.0

S.S

5.8

3.7

3.7

S.S

5.5

S.S

3.7

3.5

3.3

3.3

3.1

3.0

S.O

2.7

2.6

2.7

2.7

2.6

778" 2 .4

2.4

10S.8

3.S4

203

Apr.

2.4

2.4

2.4

2.8

S.S

TTs" S.7

3.1

218

2.6

2.7

2.4

2.S

2.3

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.3

2.6

2.8

2.7

2.7

2.7

2.7

-

77.0

2.S7

16S

May

H2.6

2.6

2.6

2.S

2.S

2.5

2.5

2.4

2.4

2.4

2.4

2.4

2.3

2.3

2.2

2.S

2.3

2.S

2.2

2.0

1.8

1.6

1.4

1.3

1.2

TT?

1.3

1.3

1.2

66.2

2.10

129

June

H.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.6

.6

.5

.S

.5

.6

.5

.4

.4

.4

.4

.4

.3

-

20.4

0.68

40

July

S$'.Z

.2

.2

.2

.1

.1

0

S

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.8

0.05

3.2

Aug.

0

0

0

Sept.

P

0

0

Calendar year 1950i Max 7.0 Mln o Mean 1.66 Ao-ft 1.210

Water year 1950- 51 1 Max 5.6 Mln o Mean 1.28 Ao-ft 824

Note...Mo gage-height reoord Apr. 28 to May 15; discharge Interpolated. 

266498 O - S3 - 4
38 SAN LUIS REY RIVER BASIN

San Luis Rey River near Bonsall, Calif.

Location.--Lat 33°15'05", long. 117°14'55", in NE^ sec. 1, T. 11 S., R. 4 W., on left banV 

O.b mile downstream from bridge on Fallbrook-Escondido road and 3 jniles 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 1951.

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 

daturas. October 1929 to Nov. 15, 1945, at same site at datum 3.44 ft higher. Nov. 16, 

1945, to Sept. 16, 1946, at same site at datum 1.44 ft higher.

Average discharge.--22 years (1929-51), 31.1 cfs; median of yearly mean discharges, 15 cfs.

Extremes.--No flow during year.

1929-51: 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 during part of each 

year.

Remarks. No flow since Apr. 19, 1949. Flow regulated at Lake Henshaw (see p. 35 ). Severai diversions above station (see records for station "below Pala diversion dam, near 

Pala," p. 36).

Revisions (water years).--W 881: 1938.

San Luis Rey River at Oceanside, Calif.

Location.--Lat 33°12'40", long. 117°22'40", in NW£ sec. 23, T. 11 S., R. 5 W., on right 

banic 0.5 mile upstream from State highway bridge, 0.7 mile upstream from mouth, and 

1 mile north of Oceanside.

Drainage area. 557 sq mi.

Records available.--April 1912 to September 1914, January 1916, October 1929 to January 

19<K, October 1946 to September 1951. Published as "near Oceanside" prior to January 

1916.

Gage. Water-stage recorder. Altitude of gage is 20 ft (from topographic map). April 

1912 to September 1914, staff gage at site three quarters of a mile upstream at different datum. January 1916, staff gage one quarter of a mile downstream at different 

datum.

Average discharge.--19 years (1912-14, 1929-41, 1946-51), 27.8 cfs; median of yearly mean 

discharges, t>.0 cfs.

Extremes.--No flow during year.

 1512-14, 1916, 1929-42, 1946-51: Maximum discharge, 95,600 cfs Jan. 12, 1916; no 

flow for several months each year.

Remarks.--No flow since Oct. 1, 1946. Flow regulated by Lake Henshaw (see p. ). Several diversions above station (see records for station "below Pala diversion dam, near 

Pala," p.
SANTA MARGARITA RIVER BASIN 39

Temecula Creek at Nigger Canyon, near Temecula, Calif.

Location. Lat 33°29'40", long. 116°59'00", in Pauba Grant, on left bank at upper end of 

Nigger Canyon, about 700 ft downstream from Vail Dam, 0.2 mile downstream from Arroyo 

Seco, and 10 miles east of Temecula, Riverside County.

Drainage area.--319 sq mi.

Records available. January 1923 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,350 ft (from topographic map). Prior 

fo Oct. 16, 1930, at site 400 ft upstream at several different datums.

Extremes. Maximum discharge during year, 14 cfs May 29 (gage height, 1.10 ft); no flow 

during most of year.

1923-51: Maximum discharge, 17,100 cfs Feb. 16, 1927 (gage height, 19.5 ft), by 

slope-area method; no flow during most of 1949, 1950, and 1951.

Remarks. Records good. No diversion above station. Flow regulated by Vail Reservoir 

Beginning in November 1948 (capacity, 50,000 acre-ft).

Cooperation. Gage-height record and 10 discharge measurements furnished by Santa Margarita 

Kancn 10. S. Navy) and Pauba Ranch.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

.6

.1 1.2

0.7 

.8 

.9

3.0 

5.4 

8.4

Discharge, In cubic feet per second, water year October 1950 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.

(")

0

0

0

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

(3

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

2.3

7.5

15.2

0.49

30

June

 5.4

5.4

5.2

*5.2

5.4

 5.7

*s!4

5.4

5.7

*3.2

O

13

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

57.4

1.91

114

July

0

*i3

0

0

0

»0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.9

4.9

*5.2

5.2

*5.2

5.2

5.2

*5.2

5.2

43.2

1.39

86

Aug.

*2.6

7J

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

2.6

0.08

5.2

Sept.

(")

(*)

-

0

0

0

Calendar year 1950: Max 10 Mln 0 Mean 0.32 Ac-ft 235

Water year 1950-51: Max 7.5 Mln 0 Mean 0.32 Ac-ft 235

* Discharge measurement made on this day.
40 SANTA MARPARITA RIVER BASIN

Murrieta Creek at Temeoula, Calif.

Location. Lat 33 8 29'00", long. 117"08'50", in Temecula Grant, on right bank 0.5 mile south 

or Temeoula, Riverside County, and 0.6 mile upstream from mouth.

Drainage area. 820 sq mi.

Records available..--October 1930 to September 1951.

Page.--Water-stage recorder. Altitude of gage is 1,050 ft (from topographic map). Prior 

to Jan. 6, 1931, staff gage and sharp-crested weir at site half a mile downstream at 

different datum. Jan. 6, 1931, to Dec. 16, 1938, alternate water-stage recorder and 

sharp-crested weir at site half a mile downstream at different datum.

Average discharge.--21 years, 11,2 of3; median of yearly mean discharges, 3.5 cfs.

Extremes.--Maximum discharge during year, 15 cfs Jan. 11 (gage height, 0.94 ft); minimum 

aalijf, 0.2 cfs on many days.

1930-51: Maximum discharge, 17,500 cfs Jan. 23, 1943 (gage height, 13.82 ft); minimum daily, 0.2 cfs on days in 1949 and 1951.

Remarks. Records good. Discharge measurements generally made daily except Sundays. No 

app"reeiable diversion above station.

Cooperation. Page-height record and 296 discharge measurements furnished by Santa MargaTTTa"~Raneh (U. S. Navy) and Pauba Ranch.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge. In oublo feet per seoond)

0.2 

.3 

.4 

.5 

.6

0.1 

.4 

1.0 

2.0 

3.6

Discharge, In oublo feet per eeoond, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

6

9

10

11

12

13

14

IS

16

17

18

19

20

21

22

23

24

25

26

27 

28

29

SO

31

Total

Mean

Ao-ft

Oot.

0.4

.'4 t l

.4

.4

.4

.4

.4

.4

.5

.4

.4

.4

.4

.5 

.4

.5

.4

.4

.5

.5

.5

.5

.5

.5

.5 

.5

.5

.5

.5

13.9

0.45

28

Nov.

-T* 0.4

.'4

.4

.5

.5

.S

.5

.5

.5

.5

.5

.6

Tff

.6 

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6 

.7

.7

.7

-

17.4

0.58

35

Dec.

"Tff 0 7

Is

.8

.8

"7? 1.0

!e

.8

.8

.8

.6

.8

.8

.8

.8 

.8

.8

,8

.8

.8

.8

.8

.6

.8

.8

.8 

.8

.6

.8

.8

25.0

0.81

50

Calendar year 1950 i Max 2.9

Jan.

o.e

.6

78"

.8

.8

.8

.8

.8

.8

2.2

TTff

lie

.9

.9

.9 

.9

.9

.9

.9

.6

.9

1.0

1.0

.8

.8

.8 

.9

1.1

1.3

1.1

29.9

0.96

59

Feb.

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

,9

.9

.9

.9

.9

.9

of

t O

.9

.9

.9

.9

.9

.9

.9

.9

¥.-

25.7

0.92

51

Mar.

1.5

1.7

T7?

1.3

1.2

1.0

1.0

.9

.9

1.0

1.0

1.0

1.0

.9

.8

.8 

.8

.8

.8

.8

.8

.8

.8

.8

.8

_ 7

.'?

.8

.8

.7

29.2

0.94

58

Apr.

o.e

.8

.7

.9

.8

.8

.9

.8

.7

.7

.8

.7

.6

.6

.6

.6 

.6

.6

.6

.6

.5

75

.5

.5

.8

.9

.9 

1.0

1.8

TT5

-

23.1

0.77

46

May

i4170

.8

.7

.6

.6

.6

.6

.5

.6

.5

.5

.5

.6

,6

.6 

.6

.6

.5

.5

.5

.5

.5

.5

.5

7*

.4

.4

.5

.4

17.7

0.57

35

June

-75 0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

tt

.3 

.3

.4

.4

ii

.3

.3

.3

.3

.3

.3

.3 

.3

.3

.3

-

9.5

0.32

19

July

0.3

,3

.3

.3

,3

.i

,2

.2

.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.2

.2

.3

.3

.3 

.3

.2

.2

.2

8.1

0.26

16

Aug.

0.2

,2

.2

.2

.3

.2

.2

.2

.3

,2

.6

.9

.9

1.1

1.1

H1.1 1.0

.6

.4

.3

.3

.3

.3

.3

.2

.3

.3

.3

.3

15.2

0.49

30

Sept. .

0.3

.2

7Z

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

rl

.4

-

8.4

0.28

17

Mln 0.3 Mean 0.71 Ao-ft 516

Hater year 1950-51 1 Max 2.2 Mln 0.2 Mean 0.61 Ao-ft 444

Peak discharge (base, 55 ofs).--No peak above base.
SANTA MAROARITA RIVER BASIN 41

Temecula Creek at Railroad Canyon, near Temeoula, Calif.

Location. La t 33°28'25", long. 117°08'35", In Temecula Qrant, on left bank at upper end 

or Temecula or Railroad Canyon, 0.1 mile downstream from Murrieta Creek, and 1.5 mllea 

south of Temecula, Riverside County.

Drainage area. --592 aq ml.

Records available. January 1923 to September 1951.

Qage. Water-stage recorder. Altitude of gage Is 950 ft (from topographic map).

Extremes . Maximum discharge during year, 36 cfs Jan. 11 (gage height, 2.13 ft); minimum 

dalljr, 1.6 cfs July 19-21.

1923-51: Maximum discharge, 25,000 cfs Feb. 16, 1927 (gage height, 14.6 ft); minimum, 0.4 cfs July 16, 1925.

Remarks. Records good. Discharge measurements generally made dally except Sundays. Pumping 

aTwrslons above gage affect flow during Irrigation season. Plow partly regulated by 

Vail Reservoir beginning In November 1948 (capacity, 50,000 acre-ft).

Coo eration. Page-height record and 296 discharge measurements furnished by Santa Mararita wanch (U. S. Navy) and Pauba Ranch.

Discharge, in oubio feet per second, water year Oetober 1950 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

37

28

29

30

31

Total

Mean

Ac- ft

Dot.

4.2

4.0

4TJ

4.2

4.4

4.6

4.6

4.4

4.4

4.0

4.0

4.0

4.0 

4.2

4.4

4.4

4.4

4.6

4.6

5.0

5.0

5.0

5.0

4.8

4.8

4.8

4.8

4.8

5.0

4.8

4.6

140.2

4.52

278

Nov.

4.6

i4T75

4.6

4.8

5.0

5.0

5.0

5.2

4.6

4.8

5.4

H6.4

6.2

5. 8

6.0

6.4

5. 8

5.8

5.8

5.4

5.4

6.0

5.8

5.6

5.6

6.0

5.8

-

167.8

5.59

333

Dec.

5.6

5.4

6.0

6.8

575

5.6

6.0

5.4

5.6

5.8

6.0

5.4

fc*

5.8

6.0

6.0

5.8

5.4

5.4

5.6

5.6

5.6

5.6

5.6

5.4

5.8

5.8

5.7

6.0

5.8

177.0

5.71

351

Jan.

5.8

5.8

5.8

5.8

5.2

5.2

5.2

5.2

5.6

6.2

9.3

575

6.8 

6.6

6.6

6.8

6.6

6.6

6.4

6.0

6.0

6.0

6.2

6.4

6.2

6.2

6.2

6.2

9.0

8.5

7.0

199.9

6.45

396

Feb.

6.8

375

6.4

6.4

6.2

6.0

5.8

5.6

5.6

5.6

5.6

5.8

5.6 

5.4

371

5.4

5.6

5.8

5.8

5.8

5.8

5.8

5.8

5.8

5.6

5.8

6.6

6.2

_

-

-

164.6

5.88

326

Mar.

8.7

T75

7.0

6.6

6.2

6.2

6.0

6.0

5.8

5.6

5.4

5.4

5.8 

5.6

5.2

5.4

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.0

575

5.6

5.2

5.2

5.0

5.0

5.2

176.7

5.70

350

Apr.

5.2

5.2

5.2

5.4

4.8

4.8

5.0

5.0

4.8

. 4.8

4.6

4.4

4.4 

4.4

4.2

4.2

4.0

4.0

4.0

4.0

3.8

3.6

375

3.8

5.3

5.2

4.6

5.6

4457?

-

139.7

4.86

277

May

5.2

4.6

4.4

4.0

4.4

4.2

4.0

3.6

3.8

4.0

4.0

4.0

4.0 

5.0

4.8

4.7

5.2

4.6

4.8

5.4

4.5

4.4

4.2

3.8

3.8

3.6

4.0

4.0

3-4

375

4.0

132.0

4.28

262

June

3.6

375

3.4

3.4

3.6

3.6

3.6

3.6

3.2

3.2

3.2

3.2

3.2 

3.1

3.1

3.1

3.1

2.9

3.1

3.4

3.2

3.2

3.2

3.1

2.8

2.9

2.9

2.9

2.8

2.8

-

96.0

3.20

190

July

2.9

2.9

2.8

2.8

2.6

2.4

2.4

2.3

2.3

2.3

2.3

2,1

2.1 

2.1

2.1

2.3

2.3

2.1

li|

T75

1.6

1.8

2.0

2.0

2.0

2.1

2.6

3.1

3.2

37S

2.9

72. 8

2.35

144

Aug.

2.9

3.1

2.4

2.6

2.0

2.8

2.8

1.8

775

2.8

2.9

2.9

2.9 

3.6

9.1

7.4

5.2

6.2

6.2

5.2

4.8

3.8

3.6

3.6

3.4

3.4

3.4

5.2

5.2

4.4

3.8

121.8

3.93

242

Sept.

3.8

4.0

T70

4.0

3.6

3.2

3.2

3.2

3.2

3.2

3.4

3.2

3.1 

2.9

2.9

2.9

2.9

2.8

2.9

2.9

2.8

2.6

?75

3.1

3.1

3.1

2.9

3.4

3.4

3.2

-

95.8

3.19

190

Calendar year 1950: Max 12 Hln 2.9 Mean 5.41 Ao-ft 3.920

Water year 1950-51: Max 9.3 Mln 1.6 Mean 4.61 Ao-ft 3,340
42 SANTA MARGARITA RIVER BASIN

Santa Margarita River near Fallbrook, Calif.

Location. Lat 33°24'35", long. 117°14'50" 

a miles north of Fallbrook.

In NE£ sec. 12, T. 9 S., H. 4 W. , on left bank

Drainage area. 645 sq mi.

Records available. November 1924 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 290 ft (from topographic map). Since 

October 1930, auxiliary water-stage recorder on right bank 2,000 ft downstream at different datum.

Extremes. Maximum discharge during year, 18 cfs Apr. 29 (gage height, 0.78 ft); minimum 

 daily, 0.1 cfs July 17, 20-24, Aug. 6-8, 11-13.

1924-51: Maximum discharge, 33,100 cfs Feb. 1(1, 1927 (gage height, 15.6 ft), by

slope-area method; minimum daily, 0.1 cfs at times; during July and August of 1929 and

1951.

Remarks. Records good. Discharge measurements geneially made daily except Sundays. Flow 

parTfly regulated by Vail Reservoir (capacity, 50,OOC acre-ft). Several small diversions 

above station for irrigation.

Cooperation. Gage-height record and 297 discharge measurements furnished by Santa Margarita 

Hancn (u. S. Navy) and Pauba Ranch.

Rating tables, water year 1950-51 (gage height. In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1 to Dec. 7, July 10 to Aug. 15)

Oct. 1 to July 29

-0.1 

0 

.1 

.2

.3 

1.0 

2.0

0.3 

.4

.7

3.2

5.0

10

14

July 30 to Sept. 30 

0 0 2.4

.1 .4 .4 4.4 

.2 1.1 .5 7.2

0.3 

.4

Discharge, In cubic feet per second, water year October 1950 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

Ao-ft

Oct.

2.8

2.7

2.1

1.7

1.8

2.2

2.3

2.8

2.3

2.3

2.3

2.0

1.7

1.5 

T75

2.3

2.2

2.3

2.4

2.7

2.9

3.7

3.7

3.4

3.5

3.5

3.5

4.0

4.0

4.4

4.6

85.5

2.76

170

Nov.

4.4

3.7

3.2

2.7

37?

3.7

3.7

3.7

4.6

4.2

3.5

4.0

5.0

?7f

6.3

5.8

6.0

6.8

6.8

6.3

6.0

6.0

5.8

6.0

6.0

5.8

6.3

6.3

6.6

-

158.6

5.29

315

Dec.

6.6

6.3

6.0

6.6

6.6

6.0

5.0

4.8

4.6

4.6

4.8

5.4

5.4

5.6 

6.0

6.0

5.8

5.6

5.2

5.2

5.6

5.8

6.3

6.3

6.3

6.0

5.8

5.8

6.0

5.4

6.3

177.7

5.73

352

Jan.

6.3

6.3

6.3

6.3

5.8

5.6

5.2

575

6.0

6.8

8.0

12~9.4

8.3 

7.3

7.6

7.6

7.6

8.3

7.8

7.3

7.0

7.0

7.0

7.0

5.8

7.3

7.6

8.6

11

8.8

228.9

7.38

454

Feb.

8.0

7.8

7.3

7.3

7.6

8.0

7.6

7.3

7.0

6.8

7.0

7.3

7.6

6.6 

6.3

6.6

6.8

6.8

6.0

5.4

6.0

6.6

6.6

6.6

6.3

6.3

8.6

775

_

_

-

195.9

7.00

389

Mar.

9.7

12~9.4

8.8

8.3

7.8

7.6

7.3

7.0

7.3

6.8

5.4

5.4

5.6 

5.0

5.2

5.6

5.4

4.8

4.8

4.2 572

5.4

4.4

4.4

5.4

4.4

4.6

4.8

4.6

5.0

191.6

6.18

380

Apr.

4.8

4.0

4.2

5.8

4.4

4.2

4.2

4.0

3.9

3.7

3.5

3.2

3.1

3.1 

2.9

2.9

2.9

2.7

2.8

2.9

2.7

2. "4

2.3

2T5

3.5

6.6

5.4

5.2

9.3

775

120.1

4.00

238

May

5.8

575

5.4

5.0

4.4

4.4

4.2

4.0

3.5

3.7

4.4

4.4

4.2

3.9 

4.0

2.8

2.8

2.7

2.5

2.7

2.7

2.9

3.7

3.1

2.3

2.1

2.1

2.1

2.0

1.9

1.8

107.1

3.45

212

June

2.0

Ii7

1.4

1.3

1.5

1.5

1.8

1.8

1.5

1.4

1.3

3^0

 b

.7 

.8

.7

.8

1.0

1.0

1.0

.9

.8

.9

1.0

.7

.6

.5

75

.5

.6

33.9

1.13

62

July

0.6

.5

.5

.5

.4

.4

.3

.3

.3

.2

.2

.2

.2

.3 

.3

.2

.1

72

.2

.1

.1

.1

.1

.1

.2

.2

.2

.3

.3

2.1 -75

10.2

0.33

20

Aug.

0.4

.3

.3

.4

.2

.1

7T

.1

.2

.2

.1

.1

.1

.3 

.4

2.1

3.0

2.6

2.3

2.3

2.6

2.6

2.0

1.8

1.6

1.0

.9

2.0

5.0

47T

3.0

42.5

1.37

84

Sept.

2.1

275

1.9

1.8

1.8

1.5

1.6

1.4

1.1

1.1

1.0

1.2

1.1

1.0 

1.0

1.0

1.0

.6

.5

75

.5

.5

.5

.6

.7

1.2

1.2

1.9

1.5

1.2

-

35.0

1.17

69

Calendar year 1950: Max 15 Mln 0.6 Mean 5.02 Ac-ft 3,630

Water year 1950-^1: Max 12 Mln o.l Mean 3.80 Ac-ft 2,750
SANTA MARGARITA RIVER BASIN 43

O'Neill ditch near Ysidora, Calif.

Location.--Lat 33°19'40", long. HVigUS", on right bank 100 ft upstream from point of 

discharge into O'Neill Reservoir and 6 miles northeast of Ysidora, San Diego County.

"ecords available.--October 1930 to September 1951.

Gage. Water-stage recorder. Prior to October 1935, occasionally at site 1,200 ft upstream 

at different datum.

Extremes.--Maximum daily discharge during year, 10 cfs, Jan. 12; no flow during several 

months.

1930-51: Maximum daily discharge, 35 cfs May 24, 1937; no flow during parts of each 

year.

Remarks. Records good. Discharge measurements generally made daily except Sundays.

DTEch diverts water from left side of Santa Margarita River about 6 miles upstream from 

station on Santa Margarita River at Ysidora.

Cooperation. Gage-height record and 158 discharge measurements furnished by Santa Margarita 

Hanch (u. S.. Navy) and Pauba Ranch.

Discharge, In cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

.9

1.4

1.1

1.4

2.6

2.7

2.2

2.0

1.7

2.0

2.0

2.3

2.4

2.4

2.6

2.6

-

32.6

1.09

65

Dec.

2.8

2.8

3.0

3.0

3.2

3.0

2.8

2.3

1.8

1.6

1.3

1.2

ITs

2.0

2.1

2.4

2.3

2.3

2.4

2.2

2.0

2.4

2.8

3.0

3.0

3.3

3.5

3.6

3.6

3.4

3.2

79.8

2.57

158

Jan.

3.1

3.4

3.8

3.7

3.9

3.8

3.6

3.1

2.8

575

4.5

10

8.1

7.8

7.1

6.6

6.4

6.2

6.4.

6.7

6'.5

6.2

5.9

5.7

5.5

5.5

5.4

5.4

6.8

8.9

8.9

175.2

5.65

348

Feb.

8.2

7.7

7.2

7.0

6.8

6.6

6.4

6.3

6.2

6.1

6.1

6.6

6.5

6.3

5.9

5.7

5.9

5.6

5.5

5.4

4.9

5.0

5.3

5.6

5.5

5.5

6.4

7.0

_

-

173.2

6.19

344

Mar.

8.2

9.3

9.4

9.1

8.7

8.3

6.9

6.8

6.3

6.2

6.1

5.7

5.4

4.7

4.1

3.9

3.9

4.0

3.9

3.3

3.0

3.0

2.9

3.1

3.0

2.6

2.4

2.3

273

2.5

2.3

153.5

4.95

304

Apr.

3.0

2.9

2.5

3.0

3.2

3.2

3.0

3.0

2.4

2.0

1.8

1.3

1.1

1.2

1.2

1.0

.8

.5

.5

ii

.5

.5

.4

.9

1.4

5.4

4.6

4.0

9.4

9.0

-

74.1

2.47 1'47

Calendar year 1950: Max 14 Min 0 Mean 2.14

May

7.5

5.6

4.3

4.0

3.3

2.9

2.6

2.4

2.1

2.0

1.8 2.0

2.0

1.8

1.6

1.4

1.1

.6

.5

.5

.3

.1

.1

0

0

.1

0

0

0

0

0

50.6

1.63

100

June

0

0

0

July

0

0

0

AC-ft 1,550

Aug.

0

0

0

Sept.

0

0

0

Water year 1950-51 : Max 10 Min 0 Mean 2.02 Ac-ft 1,470

Santa Margarita River at Ysidora, Calif.

Location. Lat 33°14'40", long. 117°22'50", in Santa Margarita Y Las Flores Grant, on

 right bank 1 mile downstream from Ysidora, San Diego County, and about 2 miles upstream

from mouth.

Drainage area. 740 sq mi.

Hecords available.--February 1923 to September 1929, October 1930 to September 1951. 

(Jage. Water-stage recorder. -Altitude of gage is 15 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. 27 years (revised), 38.7 cfs; median of yearly mean discharges, 16 cfs.

Extremes. MO now during year.

 IF23-29, 1930-51: Maximum discharge, 33,600 cfs Feb. 16, 1927, by slope-area method;

no flow during part of most years. 

Remarks. No flow since Mar. 19, 1949. Diversions above station for irrigation on Santa

 FErgarita Ranch and Pauba Ranch. (See p. for records of O'Neill ditch near Ysidora.) 

Flow partly regulated by Vail Reservoir (capacity, 50,000 acre-ft).

Cooperation. Gage-height record furnished by Santa Margarita Ranch (U. S. Navy) and Pauba 

Kancn.
44 SAN JUAN CREEK BASIN

San Juan Creek near San Juan Capistrano, Calif.

Location. Lat 33 8 30'50", long, 117 8 37'40", in Mission Viejo Grant, on right bank at Orteg<»

 StaTS1 Highway bridge, 2.5 miles east of San Juan Capistrano, Orange County.

Drainage area. 110 sq mi.

Records available. October 1928 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 150 ft (from topographic map). Prior to 

" "Tfeb. 28, 1934, at site 2$ miles downstream at different datum. Feb. 88, 1934, to

Dec. 10, 1938, at different datum. Dec. 11, 1938, to Dec. 17, 1941, at datum 8.00 ft

higher.

Average discharge. 23 years, 13.8 cfs; median of yearly mean discharges, 3.0 ofs.

Extremes. Maximum discharge during year, 1.8 cfs Mar. 2 (gage height, 1.87 ft); no flow

 ror many days.

1929-51: Maximum discharge, 13,000 cfs Mar. 8, 1938, by slope-area method, determined by Corps of Engineers; no flow at times during most years.

Remarks.--Records fair. Discharge measurements generally made weekly. San Juan Mutual

 ffBTe"r Co. diverted about 870 aore-ft from point about 500 ft above gage.

Cooperation. Forty-seven discharge measurements furnished by Orange County Flood Control 

uisincT;, through J. A. Bradley, flood-control engineer, and four discharge measurement"1 

furnished by Santa Margarita Ranch (U. S Navy) and Pauba Ranch.

Rating table, water year 1950-51 (gage height, in feet,

and discharge, in oubio feet per second

(Shifting-oontrol method used Oct. 25 to Nov. 4,

Nov. 20 to Deo. 26, May IS to July 25)

1.4

1.5

1.6

1.7

1.8 

2.0

0.6 

1.0 

2.1

Discharge, in oubio feet per second, water yta.f October 1950 to September 1951

Day

1

2

5

4

5

6

7

8

9

10

11

12

15

14

IB

16

17

16

19

20

21

22

25

24

25

28

27

26

29

SO

SI

Total

Mean

Ac-tt

Oct.

0

S

0

0

0

0

0

,1

71

.1

.1

0

0

0

0

0

0

0

0

0

0

0 .1.1

.1

.1

.1

0

0

0

0

0.9

0.03

1,8

Nov.

0

T5

0

0

0

0

0

0

0

0

0

0

.2

.4

.1

.1

.1

.2

.6

.9

.8

.8

.S

.8

.8

.8

.8

.8

.8

.8

-

10.6

0.35

21

Deo.

0.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.S

.8

 9

T?

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.4

.1

7T

.1

.1

.1

22.2

0.72

44

Jan.

Oil

^j

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.4

.5

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.5

T7C

6.0

0.19

12

Feb.

1 0

T7B

1.0

1.0

1.0

1.0

1.0

1.0

.7

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.9

1.0

_

-

15,4

0.48

27

Mar.

1<6

T75

1.4

1.2

1.2

1.2

1 t Q

.2

.2

.8

.1

.1

0s

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

9.8

0.52

19

Apr.

0s

p

.1

.1.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.5

.5

.3

.5

.J

,S

.3

.4

.4

.4

6.3

0.21

12

Hay

0.4

.4

.4

75

.5

.4

.4

.4

.4

.5

.5

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

71

.1

.1

.1

.1

.1

.1

.1

7.9

0.25

16

June

Oil

^T

.1

.1

.1

.1

.1

.1

.1

.1

>2

T?

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

-

4.2

0.14

8.3

July

~7Tf 0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

jj

0

0

0

0

0

0

0

4.0

0.15

7.9

Aug.

0

0

0

Sept.

0|1

^J

.1

.1

.1

.1

( ]

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Tz*

.1

5.2

0.11

6.S

Calendar year 1950 1 Max 2.6 Min 0 Mean 0.47 Ao-ft 540 

Water year 1950-51 1 Max 1.5 Min 0 Mean 0.24 Ao-ft 175

Peak discharge (base, 20 ofs). No oeak above base.
SAN JUAN CREEK BASIN 45

Trabuco Creek near San Juan Capistrano, Calif.

Location. Lat 33°31'30", long. 117"40'15", In SW£ sec. 25, T. S., R. 8 W., on downstream

 side'of center pier of State highway bridge, 1.5 miles north of San Juan Capistrano.

Drainage area. 36.5 sq ml.

Records available.--October 1930 to September 1951.

Page.--Water-stage recorder.

Average discharge.--21 years, 5.75 cfs; median of yearly mean discharges, 0,9 cfs.

Extremes. Maximum discharge during year, 0.2 cfs Jan. 8 (gage height, 1.95 ft); no flow

 curing most of year.

1930-51: Maximum discharge, 9,240 cfs Feb. 6, 1937; no flow during part of each 

year.

Cooperation.--Records furnished by Orange County Flood Control District, through J. A. 

kraaiey, flood-control engineer.

Discharge, in cubic feet per second, water year October 1950 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

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

0

0

0

0

jl

0

0

0

0

0

0

0

0

0

0

0

0

0.1

0.003

0.2

Feb.

0

0

0

Mar.

§0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Q*~~

0

0

0

0.1

0.003

0.2

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 1950: Max 0.4 Min 0 Mean 0.004 Ao-ft 2.8 

Water year 1950-51: Max 0.1 Min 0 Mean 0.001 Ao-ft 0.4
46 ALISO CREEK BASIN

Aliso Creek at El Toro, Calif.

Location.--Lat 33°37'15", long. 117°41'20", 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 440 ft (from topographic map).

Average discharge. 21 years, 0.81 cfs; median of yearly mean discharges, 0.34 cfs.

Extremes. No flow during year.

1930-51: Maximum discharge, 1,950 cfs Feb. 6, 1937; no flow most of each year.

Remarks.--No flow since Apr. 8, 1950. Figures for calendar year 1950 are as follows:

maximum daily discharge, 4.6 cfs; minimum daily, zero; mean 0.015 cfs; runoff, 10 

acre-ft.

Cooperation.--Records furnished by Orange County Flood Control District, through J. A. 

Bradley, flood-control engineer.

Revisions (water yearsj.--W 961: 1941(M);

PETERS CANYON WASH BASIN 

San Diego Creek near Irvine, Calif.

Location.--Lat 33°40i20", long. 117°47'10", in San Joaquin Grant, on left bank 200 ft

downstream from bridge on U. S. Highway 101 and 1.5 mile's west of Irvine, Orange County.

Records available.--October 1949 to September 1951.

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).

Extremes. Maximum discharge during year, 0.4 cfs May 5 (gage height, 0.62 ft); no flow 

during most of year.

1949-51: Maximum discharge, 244 cfs Feb. 6, 1950 (gage height, 2.38 ft), from 

rating curve extended above 110 cfs on basis of logarithmic plotting; no flow during 

most of each year.

Remarks.--No daily discharge as great as 0.1 cfs since Mar. 25, 1950. Observations of no 

now generally made once a week. Figures for the calendar year 1950 are as follows: 

maximum daily discharge, 18 cfs; minimum daily, zero; mean, 0.09 cfs; runoff, 67 acreft.

Cooperation.--Numerous observations of no flow furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.
SANTA ANA RIVER BASIN 47

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 7^ miles upstream from mouth.

Drainage area. 38 sq mi, approximately.

Records available. October 1950 to September 1951 in reports of Geological Survey. Pebruary 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).

Remarks.--Lake is formed by multiple-arch concrete dam, completed in 1912, replacing 

existing 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.

Monthly contents, in acre-feet, water year October 1950 to September 1951

Month

Water year 195O-51 ...............

Contentst

_

Change 

In 

contents

-1,445

-206

+309

-1,530

-1O.100

t Contents at 7 a.m. on first day of month.
48 SANTA ANA RIVER BASIN

Santa Ana River near Mentone, Calif.

Location. Lat 34°06'40", long. 117°06'00", in NiSW^ sec. 4, T. 1 S., R. 2 W. , on left 

SanJC near mouth of canyon, 2 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 1951.

Page . --Water-stage recorder. Datum of gage is 1,984.28 ft above mean sea level, datum of 

 T929. Prior to Oct. 1, 1914, staff gages at various sites within 1,000 ft of point If 

miles upstream at various datums. Prom Oct. 1, 1914, to Jan. 17, 1916, staff gage at

site 10 ft upstream at different datum.

at same site and datum.

Jan. 18, 1916, to Sept. 2,. 1917, staff gage

Average discharge. 37 years (1914-51), 35.8 cfs; median of yearly mean discharges,

 1U cTS.Average combined discharge of Santa Ana River and canal, 37 years (1914-51), 

92.3 cfs; median of yearly mean combined discharges, 72 cfs.

Extremes. Maximum discharge during year, 38 cfs May 14 (gage height, 6.09 ft); no flow

 during most of year.

1896-1951: Maximum discharge, 52,300 cfs Mar. 2, 1938 (gage height, 14.3 ft), on 

basis of slope-area computation of peak flow; no flow at times in some years.

Remarks.--Records good. Discharge measurements generally made twice a month. Plow partly

 Peculated by Bear Lake (see p. 47 j. For records of combined discharge of Santa Ana 

River and Southern California Edison Co.'s canal below power plant No. 2, which diverts 

above station, see following page.

Revisions (water years). W 931: 1940.

Rating table, water year 1950-51 (gage height. In 

feet, and discharge, In oublo feet per second)

5.2

5.3

5.4

5.5

5.6

0

.1

.6

1.7

3.5

5.7

5.8

5.9

6.0

6.1

6.4

10

15

22

30

Discharge, In oublo feet per second, water year October 1950 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

Ao-ft

Oot.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.2

0

0

0

0

0

0

0

0

0

0

5 2,2

0

3.4

0.11

6.7

Feb.

0

0

0

9.5

18

"ff.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

_

_-

37.0

1.32

73

Mar.

0

0

0

Apr.

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

6.2

7T7

8.9

0.30

18

May

0.3

.1

0

5

0

0

12

22

21

20

24

26

27

aT5

a. 3

.2

.1

12

a.l

a.l

a. 2

.2

.2.1

.1

.1

.1

.1

.1

.1.1

181.6

5.86

360

June

0.1

.1

.2

.T

.2

.2

.2

.2

.1

.1

.1

00"

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

1.6

0.05

3.2

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 207 Mln 0 Mean 2.04 Ao-ft 1,480

Water year 1950-51: Max 27 Mln 0 Mean 0.64 Ao-ft 461

Peak discharge (base. 150 ofs). No peak above base.

a NO gage-neight reooraj discharge estimated on basis of records for stations on nearby streams
SANTA ANA RIVER BASIN 49

Combined discharge, in cubic feet per second, of Santa Ana River and canal near Hentone, Calif., 

water year October 1950 to September 1951

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

Jto-ft

Oct.

4143

39

35

36

36

33

32

32

33

37

38

41

42

42

41

36

32

32

32

37

37

38

36

36

35

35

34

33

33

32

1,123

36.2

2,230

NOV.

29

27

23

23

22

24

25

25

25

31

35

36

38 SB

24

24

24

24

25

24

23

22

21

71

21

22

22

22

22

22

762

25.4

1,510

Dec.

22

7?

22

32

22

22

22

22

21

21

21

81

21

21

22

21

21

20

20

20

20

20

20

20

33.

19

20

20

20

19

19

642

20.7

1,270

Jan.

17

Tf

20

21

20

19

19

18

18

22

22

ZZ

20

20

21

22

20

26

24

22

21

21

21

21

20

20

20

20

33

34

77

668

21.5

1,320

Feb.

25

24

24

23

12

18

22

22

22

22

22

25

22

21

20

20

20

20

20

20

20

21

20

23

26

28

75

24

_

-

616

22.0

1,220

Mar.

26

21

21

24

28

31

33

34

31

32

31

31

32

32

32

31

32

32

31

30

30

29

30

30

30

29

28

27

26

27

27

914

29.5

1,810

Apr.

26

25

25

25

28

27

26

25

24

71

24

24

24

24

24

24

25

25

27

27

26

25

25

26

30

30

28

29

49

35

809

27.0

1,600

Bay

32

32

31

32

31

30

23

22

21

20

24

26

27

34

29

28

26

26

24

25

25

26

31

36

35

34

34

34

28

28

28

862

28.5

1,750

JUne

31

34

35

36

37

38

38

38

33

32

30

30

30

29

35

30

32

32

35

37

38

3S

38

38

38

36

33

30

29

30

1,015

33.8

2,010

July

33

37

39

41

44

44

44

47

49

11

51

46

45

45

45

48

44

41

36

46

49

50

50

50

50

50

47

44

42

33

31

1,372

44.3

2,720

Aug.

32

39

42

46

46

46

46

46

46

45

42

41

41

41

43

45

47

48

47

48

46

44

44

44

42

42

41

38

33

32

31

1,314

42.4

2, '610

Sept.

30

36

36

36

39

40

40

39

39

39

34

33

33

37

40

43

44

44

45

T5

38

36

36

36

32

30

26

35

28

26

1,097

36.8

2,180

Calendar year 1950: Max 229 Mln 19 Mean 36.6 Ac -ft 26,490

Water year 1950-51: Max 51 Mln 17 Mean 30.7 Ac-ft 22,230
50 SANTA ANA RIVER BASIN

Mill Creek near Craftonvllle, Calif.

Location. Lat 34°05'20", long. 117 0 02'25", In NE&ffii sec. 13, T. 1 S., R. 2 W., on left

 Dame 50 ft downstream from bridge on State Highway 190-D, 5 miles upstream from mouth, 

and 5 miles northeast of Craftonvllle.

Drainage area. 39.9 sq ml.

Records available. January 1919 to September 1938, October 1947 to September 1951.

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.--23 years (1919-38, 1947-51), 13.5 cfs; median of yearly mean dls-

 charges. 2.3 cfs. Average combined discharge, creek and canals, 23 years (1919-38, 

1947-51), 35.4 cfs; median of combined yearly mean discharges, 25 cfs.

Extremes. Maximum discharge during year, 46 cfs Apr. 29 (gage height, 7.74 ft); no flow

1919-38 ', 1947-51: 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 good. Discharge measurements generally made twice 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.

Rating table, water year 1950-51 (gage height, In feet, and discharge,

In cubic feet per second)

(Shifting-control method used Oct. 1 to Nov. 27, Dec. 13 

to Jan. 29, Feb. 13 to Mar. 20)

7.0

7.1

7.2

7.3 2.2

7.4 5.3

7.5 11

Discharge, in cubic feet per second, water year October 1950 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.

0.1 Ti

.1 

.1

.1

.1

.2

7?

.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

Nov.

0.1 

!l

.1

.1

.1

.1

.1

.1

.1

.1

.1

~rs 1.1

.2

.1.1.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

4.4

0.15

8.7

Dec.

-TT

.1 

.1

Jl

.1

.1

1 1

.1

.1

.1

.3

7S

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

6.1

0.20

12

Jan.

.2

.2 

.1

TT

.3

.3

.2

.2

.2

.3

.3

.2

.2

.2

.2

.3

.3

.3

.3

.3

.1

.1

.1

.1

.1

.1

.1

6.2

575

.5

17.8

0.57

35

Feb.

.3

.4 

.3

.5

.3

.1

7T

.1

.1

.1

.3

.3

.4

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.3

.2

.2

.1

_

-

7.7

0.28

15

Mar.

~TS

.3 

.3

_a

.1

.1

.1

.1

.3

.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.

!l

.1

.1

.1

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

1.8

7.6

7TS

-

15.0

0.50

30

May

777

2.7

.9

.5

1.0

.7

.1

7T

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

16.1

0.52

32

June

.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

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.3

.2

.1

.1

.1

.1

.1

.1

.1

.4

7?

.2

.1

.1

4.1

0.13

8.1

Aug.

.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

0

ff

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1.1.1

-

0.6

0.02

1.2

Calendar year 1950: Max 50 Min 0.1 Mean 0.56 Ao-ft 402

Water year 1950-51 : Max 7.6 Min 0 Mean 0.23 Ac-ft 169

Peak discharge (base, 10 efs).--Nov. 13 (9:30 p.m.) 18 cfs (7.70 ft)j Jan. 29 (4:30 p:m.) 26 cfs 

(7.7Z ft); AprT Z9 (1 a.m.; 46 cfs (7.74 ft).
SANTA ANA RIVER BASIN 51

Combined discharge, In cubic feet per second, of Mill Creek and canals near Craftonvllle, Calif., 

water year October 1950 to September 1951

Day

1

^

3

4

5

6

7

8

9

3.0

u

12

1.3 :A 5

~6

"-7

"8

"9

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft|

Oct.

12

T?

12

12

Ij,

11

11

12

11

11

11

11

11

11

11

11

11

11

11

11

11

12

12

12

12

12

12

11

11

11

11

352

11.4

698

Nov.

11

IT

11

12

11

11

11

11

12

12

12

12

16

T5

13

13

12

14

15

13

12

12

12

12

12

12

12

12

12

12

-

368

12.3

730

Dec.

12

TZ

12

12

12

12

12

12

12

11

10

TZ

11

12

12

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

10

351

11.3

696

Jan.

10

11

11

11

11

11

11

11

11

11

11

11

11

11

12

11

11

11

12

11

11

11

11

11

11

11

11

11

19

15

8.0

351.0

11.3

696

Feb.

8.1

7.9 BTZ

8.3

8.1

9.6

10

10

9.7

9.5

9.6

10

9.7

9.1

9.4

9.4

9.2

9.2

9.0

9.4

9.5

11

TT

11

11

11

10

11

_-

268.9

9.60

533

Mar.

11

10

TZ

12

12

13

T4" 14

14

13

13

13

13

13

13

12

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

397

12.8

787

Apr.

13

12

TS

12

13

13

14

13

12

12

13

14

14

13

13

13

13

13

14

14

13

13

13

13

14

14

14

15

22

TT

-

406

13.5

605

May

15

17

TS

15

16

T4" 13

16

16

15

15

14

14

16

14

14

14

15

16

16

15

16

15

15

15

15

14

14

14

14

14

462

14.9

916

June

14

T?

13

13

14

14

14

13

13

13

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

11

10

9.8

STS

-

367.6

12.3

729

July

9.1

S7T

9.6

10

10

10

10

10

10

10

10

10

9.8

9.8

9.7

11

13

TZ

11

11

10

10

10

10

11

11

10

11

11

10

9.9

319.0

10.3

633

Aug.

9.7

9.8

9.8

9.6

9.5

9.5

9.3

9.5

9.5

9.5

9.7

9.5

9.5

9.3

9.0

8.8

S^

9.0

9.3

9.3

9.3

9.3

9.5

9.3

9.3

9.2

9.5

10

T5

10

9.8

293.1

9.45

581

Sept.

9.5

9.3

9.2

9.1

9.1

9.1

9.1

8.9

8.7

ra

9.1

9.1

9.2

9.2

9.1

9.1

9.1

9.4

9.4

9.4

9.6

9.6

9.6

9.8

9.8

9.8

9.8

14

T5

11

-

286.0

9.53

567

Calendar year 1950: Max 72 Mln 9.8 Mean 15.6 Ac-ft 11,330

Water year 1950-51: Max 22 Mln 7.9 Mean 11.6 Ac-ft 8,370
52 SANTA ANA RIVER BASIN

Mill Creek near Mentone, Calif.

Location.--Lat 34°05'10", long. 117 0 06'55", in SE^NW^ sec. 17, T. 1 S., R. 2 W., on down-

 stream side of right pier of Bear Valley pipe line crossing, 0.2 mile upstream from 

mouth, 1.5 miles northeast of Mentone, and 5 miles southeast of East Highlands.

Records available. February 1939 to September 1951.

Page. Water-stage recorder and broad-crested weir. Altitude of gage is 1,780 ft (from 

"topographic map).,

Average discharge. 12 years, 3.21 cfs; median of yearly mean discharges, 0.8 cfs.

Extremes.--Maximum discharge during year, 2.6 cfs Jan. 11 (gage height, 2,63 ft); no flow 

during most of year.

1939-51: Maximum discharge, 1,500 cfs Dec. 23, 1945 (gage height, 6.5 ft), result 

of slope-area determination of peak flow; no flow during parts of each year.

Remarks.--Records fair. The Zanja diverts most of low water flow above station. Pumpage

 from wells along stream above station for irrigation affects surface flow at station.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

2.2

2.3

2.4

2.5

0

.1 

.5

1.1

Discharge, In oublo feet per seoond, water year October 1950 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

Ao-ft

Oct.

(»)

0

0

0

Nov.

0

0

0

Deo.

(*)

(*)

0

0

0

Jan.

o

0

0

0

0

0

0

0

0

0

*.3

.3

.1

.1

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

.1

tS"

1.9

0.06

3.8

Feb.

~tl p.!

.1 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

_

-

0.3

0.01

0.6

Mar.

0.2

0

5

»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

0.3

0.01

0.6

Apr.

2.

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

»0

0

.1

.1

0

.1

.1

-

0.7

0.02

1.4

May

0.5

.3

.3

.1

Q.

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

0

1.3

0.04

2.6

June

(*)

-

0

0

0

July

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 10 Min 0 Mean 0.05 Ao-ft 37

Water year 1950-51: Max 0.7 Min 0 Mean 0.01 Ae-ft 8.9

Peak discharge (base. 10 cfs). No peak above base. 

* Discharge measurement made on this day.
SANTA ANA RIVER BASIN 53

Plunge Creek near East Highlands, Calif.

Location. lat 34°07'10", long. 117°08'30", in NE^NE^ sec. 1, T. 1 S., R. 3 W., on left

 banKTat mouth of canyon at crossing of North Pork ditch siphon, 2 miles northeast of 

East Highlands.

Drainage area.--16.9 sq mi.

Records available. January 1919 to September 1951; combined records of creek and diversions, Marcn to September 1951.

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 1,625 ft (from 

topographic map).

Average discharge.--32 years, 6.10 cfs; median of yearly mean discharges, 4.1 cfs.

Extremes. Maximum discharge during year, 52 cfs Apr. 29 {gage height, 1.00 ft); no flow 

during most of year.

1919-51: Maximum discharge, 5,340 cfs Mar. 2, 1938, result of slope-area determination of peak flow; no flow during parts of each year.

Remarks.--Records good. Discharge measurements generally made twice a month. Diversions

 ror irrigation are made at point 2.5, 1.0, and 0.5 miles above station. Combined flow 

of Plunge Creek and diversions is given on following page.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.1 

.2 

.3

.7 

1.8 

3.4

0.5 

.6

5.8

9.7

16

Discharge, in cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

2*1 1.1

.9

.8

.6

0

0

0

0

0

0

0

0

0

0

0

0

-

6.0

0.20

12

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

0

TT.1

0

.1

0.4

0.01

0.8

Calendar year 1950 : Max 100

Jan.

0.1

.1

.1

.2

.4

.6

.5

.2

.1

.1

1.5

.6

.1

.1

.1

.1

.1

.1

.7

.5

.2

.1

.1

.1

.1

.1

.1

.2

5.6

4.7

1.9

19.5

0.63

39

Feb.

ao.2

a.l

a.l

a.l

a.l

a.l

.1

0

0

.1

.1

.2

.9

1 7

ITT

1.7

1.7

1.7

.6

.1

.1

.1

.1

0

0

.1

.2

.1

_

_

-

12.0

0.43

24

Mar.

0.4

1.6

3.7

4.3

4.3

4.3

4.5

3.9

2.2

2.1

1.8

3.2

3.7

3.2

1.7

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

45.0

1.45

89

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4.8

2.3

.2

.7

~5.4 21

34.4

1.15

68

May

2.5

1.2

.6

.4

.2

.1

.1

0

0

0

0

0

0

3.2

1.2

.5

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

10.1

0.33

20

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Mln 0 Mean 1.72 Ac-ft 1,240

Water year 1950-51 : Max 21 Mln 0 Mean 0.35 Ac-ft 253

Peak discharge (base, 130 efs). No peak above base.

a No gage-height gage-height record; discharge estimated on basis of weather records and records for stations

on nearby streams

256498 O - 53 - 5
54 SANTA ANA RIVER BASIN

Combined discharge, In cubic feet per second, of Plunge Creek and diversions near 

East Highlands, Calif., March 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. Mar.

.

_

_

_

-

.

_

_

_

-

_

_

_

_

-

_

_

_

-

_

_

_

-

_

1.8

1.8

1.9

1.9

_

.

-

Apr.

1.8

1.7

1.7

2.0

2.8

2.6

2.2

2.0

1.8

1.7

ill

1.8

1.7

1.6

1.7

1.7

1.7

1.7

1.8

2.3

1.9

1.7

1.8

1.9

7.6

5.4

3.2

3.6

24

8.4

-

97.4

3.25

193

May

5.6

5.1

4.9

4.3

3.9

3.7

3.4

3.0

2.8

2.6

2.8

2.8

2.8

7.5

4.7

3.9

3.1

3.0

2.8

2.6

2.7

2.4

2.1

2.3

2.0

1.8

1.7

1.6

1.5

1.6

1.7

96.7

3.12

192

June

1.5

1.4

1.4

1.5

1.5

1.6

1*1

1.7

1.6

1.3

1.2

1.2

1.2

1.1

1.2

1.1

1.1

1.0

1.0

1.0

1.1

1.2

1.0

1.0

.9

.8

.8

.7

^1

.7

-

35.1

1.17

70

July

0.7

.7

.7

.7

.7

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.7

^8

.7

.6

.6

.6

.5

.5

.5

.5

.5

.7

.6

.5

^4

19.5

0.63

39

Calendar year : Max Mln Mean Ac -ft

Aug.

0.4

.4

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.3

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

11.7

0.38

23

Sept.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

^t

.5

.5

-

11.1

0.37

22

Water year : Max Mln Mean Ao-ft
SANTA ANA RIVER BASIN 55 

Little San Oorgonio Creek near Beaumont, Calif.

Location.--Lat 34°01'30", long. 116°57'00", in NE^ sec. 2, T. 2 S., R. 1 W., on downstream 

 side of left abutment of Beaumont Avenue bridge, 2.3 miles upstream from Wallace Creek 

and 7 miles north of Beaumont.

Drainage area. 2.61 sq mi.

Records available. October 1948 to September 1951.

Gage. Water-stage recorder and concrete cut-off wall control. Altitude of gage is 4,300 

T't (from topographic map).

Extremes. Maximum discharge during year, 18 cfs July 16 (gage height, 1.44 ft); no flow 

during most of year.

1948-51: Maximum discharge, about 20 cfs Feb. 6, 1950, based on records for stations 

on nearby streams; no flow for several months of each year.

Remarks. Records good. Several small diversions above station for irrigation.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.0 0

1.1 .3

1.2 1.6

Discharge, In cubic feet per second, water year October 1950 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.

(*)

0

0

0

Nov.

(*)

(*)

-

0

0

0

Dec.

(»)

0

0

0

Jan.

(*)

(*)

0

0

0

Feb.

(*)

_

-

0

0

0

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1.1

.1

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

1.9

0.06

3.8

Apr.

oa

.1

.1

*.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

*.l

.2

.2

.2

.7

.4

.2

-

4.5

0.15

8.9

May

0.4

.4

.2

.1

.2

.2

.1

*.l

.1

.1

.1

.1

,1

.2

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

0

0

0

0

0

0

.1

3.6

0.12

7.1

June

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

0

0

0

0

0-

0.3

0.01

0.6

July

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

0

0

0

0

0

0.5

0.02

1.0

Aug.

(*)

(*)

0

0

0

Sept.

(*)

-

0

0

0

Calendar year 1950 : Max 6.1 Mln 0 Mean 0.064 Ac-ft 46 

Water year 1950-51 : Max 0.7 Mln 0 Mean 0.03 Ac-ft 21

Discharge measurement made on this day.
56 SANTA ANA RIVER BASIN

San Tlmoteo Creek near Redlands, Calif.

Location.--Lat 34°01'55", long, 117°12'30", in NW^NW^ sec. 4, T. 2 S., R. 3 W., on down-

 stream side of right abutment of county highway bridge, 2 miles southwest of Redlands 

and 3-f miles downstream from Yucaipa Creek.

Drainage area.--123 sq mi.

Records available.--October 1926 to September 1951.

Gage.--Water-stage recorder and concrete cut-off wall control. Altitude of gage is 1,260

 ft (from topographic map). Prior to Oct. 30, 1934, at site 2 miles upstream at different datums.

Average discharge. 25 years, 1.64 cfs; median of yearly mean discharges, 0.6 cfs.

Extremes.--Maximum discharge during year, 80 cfs Jan. 11 (gage height, 1.50 ft); no flow 

during most of year.

1926-51: Maximum discharge, 7,460 cfs Mar. 2, 1938, result of slope-area determination of peak flow; no flow during several months each year.

Remarks.--Records fair. Entire low flow normally diverted above station for irrigation, 

blight amounts of unmeasured irrigation waste water occasionally flow past this station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.8

.9

1.0

1.2 

5.8

Discharge, In cubic feet per second, water year October 1950 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.

(*)

(*)

0

0

o

Nov.

O

0

0

0

0

0

0

o

0

0

0

0

1.7

0

0

0

0

0

o

0

0

0

o

0

0

0

*o

o

0

0

-

1.7

0.06

3.4

Dec.

(*)

0

0

0

Jan.

0

0

0

0

0

0

0

o

0

0

lii

0

0

0

*0

0

0

0

0

0

0

0

o

0

0

o

0

0

**.!

»0

0

2.2

O.O7

4.4

Feb.

0

0

0

0

0

0

0

0

0

0

o

0

*0

o

0

0

0

0

0

0

0

0

o

0

0

.4

O

*o

^

.

-

0.4

0.01

0.8

Mar.

(*)

(*)

0

0

0

Apr.

0

0

0

0

*o

0

0

0

0

0

0

0

0

0

0

0

*o

0

o

0

o

o

0

0

o

*o

*o

J,

0

*o

-

0.1

0.003

0.2

May

(*)

0

0

0

June

(*)

-

0

0

0

July

(*)

O

o

o

Aug.

(*)

(*)

0

0

0

Sept.

0

0

0

0

0

0

0

0

0

0

o

o

0

0

0

0

0

0

0

*0

0

0

o

0

0

o

0

.8

0

0

-

0.8

0.03

1.6

Calendar year 1950: Max 16 Mln o Mean 0.09 Ac-ft 67

Water year 1950-50: Max 2.1 Mln 0 Mean O.O1 Ac-ft 10

Peak discharge (base. 50 cfs).--Jan. 11 (5:30 p.m.)

* Observation of no flow made on this day.

** Field estimate made on this day.

cfs (1.50 ft).
SANTA ANA RIVER BASIN 57

Santa Ana River at E Street Bridge, near San Bernardino, Calif.

Location.--Lat 34°04'00", long. HV'IVMS", in San Bernardino Grant, gages on both banks 

on downstream side of E Street Bridge, 0.8 mile downstream from San Timoteo Creek, 1 

mile upstream from Warm Creek, and 3 miles south of San Bernardino, San Bernardino 

County.

Records available. March 1939 to September 1951.

Gage. Water-stage recorders on both banks at same datum. Altitude of gages is 970 ft 

 ^Trom topographic map). Prior to Nov. 10, 1950, water-stage recorder on right bank only 

at same datum.

Average discharge. 12 years, 13.0 cfs; median of yearly mean discharges, 7.0 cfs.

Extremes. Maximum discharge during year, 120 cfs Jan. 11 (gage height, 3.00 ft); no flow 

during most of year.

1939-51: Maximum stage recorded, 6.50 ft Jan. 23, 1943; maximum discharge uncertain; 

no flow for many days each year.

Remarks. Records good. Flow regulated by Bear Lake (capacity, 72,000 acre-ft). Many 

diversions for irrigation above station.

Discharge, In cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

3

0

0

0

0

0

0

0

0

0

0

0

a3.5

aTTT

0

3

0

0

0

0

0

0

0

0

0

0

0

0

0

-

4.6

0.15

9.1

Dec.

0

0

0

Jan.

0

3

0

.1

.1

.4

.5

.5

.6

3.0

14

^.2

.9

.8

.7

1.4

.9

3.4

7.6

5.3

4.7

*4.3

2.3

1.7

1.7

1.8

1.8

1.8

13

*7.8

2.0

86.3

2.78

171

Feb.

1.7

2.6

4.7

3.8

4.5

5.8

4.5

3.5

3.4

3.7

3.8

*4.2

5.4

4.4

3.8

4.6

5.0

4.4

4.2

4.2

2.4

2.0

1.4

1.3

1.2

1.4

9.6

T75

_

_

-

103.0

3.68

204

Mar.

*8.1

3T9

2.4

2.0

2.0

2.7

3.6

3.0

1.6

1.4

1.3

1.3

1.3

1.3

1.2

.9

.8

.8

1.2

*.9

.9

.8

5.2

.7

.6

.5

.7

.6

.4

"3.3

52.7

1.70

105

Apr.

0.3

*.3

.3

1.2

7.8

1.1

.7

.5

*.4

.5

.4

.4

.9

1.0

.3

.3

.3

.1

.1

.1

.1

.1

*0

5

9.7

.8

.2

.4

5.2

.7

34.2

1,14

68

May

0.1

.1

0

0

0

0

*0

0

0

0

.1

.1

.1

3.0

.1

.1

.1

.1

.1

.1

*.l

.1

0

0

0

0

0

0

0

0

4.5

0.15

8.9

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 150 Mln 0 Mean 2.32 Ae-ft 1,680

Water year 1950-51 : Max 14 Mln 0 Mean 0.78 Ac-ft 566

Peak discharge (base. 100 of a) . Jan. 11 (8 p.m.) 120 of 3 (3.00 ft).

a No gage-height record; discharge estimated on basis of records for nearby stations.
58 SANTA ANA RIVER BASIN

Strawberry Creek near Arrowhead Springs, Calif.

Location. Lat 34°10'45", long. 117°15'55", in SE^ sec. 11, T. 1 N., R. 4 W., on right 

 bank 100 ft upstream from Del Rosa Water Co.'s diversion dam and 0.5 mile south of 

Arrowhead Springs.

Drainage area .--8.6 sq mi, approximately.

Records available.--December 1919 to September 1951.

Gage.--Water-stage recorder and broad-crested weir. Altitude of gage is 1,650 ft (from 

^Topographic map).

Average discharge.--31 years (1920-51), 4.79 cfs (30 years, 4.91 cfs; figure published in 

Water-Supply Faper 1181 in error); median of yearly mean discharges, 3.5 cfs.

Extremes. Maximum discharge during year, 41 cfs Apr. 28 (gage height, 2.67 ft); minimum daily, 0.2 cfs on many days in August and September.

1919-51: Maximum discharge, 3,360 cfs Mar. 2, 1938, based on rainfall-runoff studies; 

practically no flow at times during 1929 and 1931-35.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Discharge measurements generally made twice a month. One small diversion above station 

for domestic supply.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.4

1.5

1.6

1.7

1.2 

2.2

1.9 

2.1 

2.3

4.8

8.6

14

Discharge, in cubic feet per second, water year October 1950 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.

0.6

.7

.6

.4

.4

.6

.5

.6

.6

.6

.5

.6

.5

.4

-il

.4

.4

.6

.5

.4

.6

.6

.6

.6

.6

.7

.7

.6

.6

.6

.6

17.0

0.55

34

Nov.

0.5

.6

.6

.7

.7

.7

.6

.6

.8

.7

.8

.8

3.0

3.0

1.7

1.4

1.5

1.6

3^8

2.3

1.8

1.6

1.5

1.4

1.5

1.5

1.4

1.4

1.4

1.5

41.4

1.38

82

Dec.

1.5

1.5

1.5

1.5

1.2

1.2

1.2

1.1

1.2

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.2

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.3

37.8

1.22

75

Jan.

1.3

1.2

1.4

1.6

1.6

1.4

1.5

1.4

1.3

1.7

3.7

2.5

1.8

1.6

1.6

1.8

1.6

1.7

5.3

2.9

2.6

2.1

2.0

1.8

1.6

1.6

1.6

2.3

ITS

3.1

68.6

2.21

136

Feb.

2.6

2.3

1.9

1.8

1.7

1.5

1.5

1.6

1.5

1.6

1.6

3.6

2.3

2.1

2.0

1.8

1.6

1.8

1.7

1.6

1.5

2.0

1.9

1.8

1.8

2.0

2.9

2.2

_

-

54.2

1.94

108

Mar.

3.2

3.0

2.9

3.0

2.9

2.9

2.9

2.8

2.5

2.3

2.2

1.9

1.9

1.8

1.8

1.8

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

1.8

Ltl

65.3

2.11

130

Apr.

1.5

1.5

1.5

1.6

2.1

2.0

1.8

1.7

1.6

1.6

1.5

1.3

1.3

1.3

1.5

1.7

1.6

1.6

1.5

1.8

1.4

1.3

1.4

1.5

3.7

2.8

2.1

6.1

12

4.8

69.1

2.30

137

May

3.9

3.2

2.8

2.5

2.5

2.3

2.4

2.3

1.9

1.8

2.1

2.1

2.4

4.8

2.8

2.3

2.0

1.6

1.5

1.6

1.8

1.6

1.7

1.5

1.2

1.2

1.2

1.1

1.0

.9

1.2

63.2

2.04

125

June

1.1

1.0

.9

1.0

1.2

1.4

1.4

1.3

1.2

1.2

1.0

.9

.9

.8

.8

.8

1.0

.8

.8

.8

.8

.8

.8

.7

.6

.6

.5

.4

.4

.4

26.3

0.88

52

July

0.4

.3

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.4

.3

.4

.4

.3

.4

.4

.4

.3

.3

.4

.3

.4

.4

.4

.4

.5

.4

.4

11.5

0.37

23

Aug.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

^2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.4

.4

.6

.6

8.5

0.27

17

Sept.

0.4

!4

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

£

.2

.3

.3

.3

.3

.3

.3

f £

.2

. 2

.2

!4

.4

.4

8.3

0.2F

16

Calendar year 1950 : Max 57 Mln O.3 Mean 2.25 Ac-ft 1,630

Water year 1950-51 : Max 12 Mln 0.2 Mean 1.29 Ac-ft 935

Peak discharge (base. 40 efs).--Apr. 28 (10:30 p.m.) 41 cfs (2.67 ft). 

Note. No gage-height record Mar. 23 to Apr. 8; discharge estimated on basis of weather records 

and records for stations on nearby streams.
SANTA ANA RIVER BASIN 59

Waterman Canyon Creek near Arrowhead Springs, Calif.

Location. Lat 34"11'35", long. 117°16'35", in SW^SWir sec. 2, T. 1 N., R. 4 W., on left 

DanK i mile northwest of Arrowhead Springs and l£ 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"), 

uecemoer i»ia to September 1951.

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 2,125 ft (from 

topographic map). Prior to December 1919, staff gage at site 300 ft downstream at different datum.

Average discharge. 33 years (1912-14, 1920-51), 2.84 cfs; median of yearly mean discnarges, i.a cfs.

Extremes. Maximum discharge during year, 34 cfs Apr. 28 (gage height, 2.73 ft); no flow 

on many days during summer.

1920-51: Maximum discharge, 2,350 cfs Mar. 2, 1938, based on rainfall-runoff 

studies; no flow at times during some summers.

Remarks. Records good. Discharge measurements generally made twice a month. One small 

diversion for domestic use above station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.5

1.6

1.7 .6

1.8

1.9 

2.1

1.3 

2.2

4.8

Discharge, in cubic feet per second, water year October 1950 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.

0.2

.2

.1 

7T

.1

.2 

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.3

.3

.3

.3

.3

.4

.5

.7

7F

.3

.4

.5

7.2

0.23

14

Nov.

0.3

.3

.2 

75

.3

.3 

.4

.4

.4

.7

.6

.5

1.6

1.3

.9

.8

.7

.9

2.0 170"

.7

.6

.6

.6

.6

.6

.6

.6

.7

.7

20.2

0.67

40

Dec.

0.7

.8

77 

.7

.8

.7

.7

.7

.7

.6

.7

.7

.6

.6

.6

.6

.6

.7

.7

.6

.6

.6

.6

.7

.6

.6

.5~75

.6

20.3

0.65

40

Jan.

0.6 ~76"

.6

.8

.8

.9

1.1

2.3

1.2

.9

.8

.8

1.0

.9

.9

2.5

1.1

1.0

.9

.9

.9

.9

.9

.9

1.3

3.8

77?

1.6

35.2

1.14

70

Feb.

1.5'

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.3

2.3

T7?

1.2

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.4

1.7

1.6

_

-

35.8

1.28

71

Mar.

1.8

T77

1.7 

1.7

1.7

1.7 

1.6

1.6

1.6

1.6

1.5

1.3

1.2

1.2

1.2

1.1

1.1

1.1

1.0

_ !

.9

.9

.9

.9

.9

1.0

1.0

1.0

1.1

1.2

1.1

39.2

1.26

78

Apr.

1.0

1.0

1.0

1.2

1.1

1.0

.9

.9

.9

.7

77

.7

.7

.9

.9

.9

.9

1.0

.9

.7

.7

.7

2.1

1.5

1.2

3.5

4.4 270-

36.4

1.21

72

May

1.7

1.5

1.3

1.2

1.1

1.1

.9

.9

1.1

1.0

1.1

3.0

T7£

1.2

1.0

.9

.9

.8

1.0

.9

.9

.7

.5

.4

7T

.4

.4

.4

.6

31.1

1.00

62

June

0.5

.4

.4

.5

.6

.6 

.7

77

.6

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.4

.3

.3

.3

.3

.2

7?

.2

13.0

0.43

26

July

0.2 "~T2"

.2 

.2

.1

.1 

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

.1.1.1

0

3.1

0.10

6.1

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 23 Min 0 Mean 1.38 Ac-ft 998

Water year 1950-51: Max 4.4 Mln 0 Mean 0.66 Ac-ft 479

Peak discharge (base, 55 cfs). No peak above base.
60 SANTA ANA RIVER BASIN

City Creek near Highland, Calif.

Location. Lat 34°08'35", long. 117°11'25", in SW^NWi sec. 27, T. 1 N., R. 3 W., on right 

came 0 .3 mile above Highlands Ditch and 1.5 miles northeast of Highland.

Drainage area. --19. 8 sq mi.

Records available. --October 1919 to September 1951.

gage . Water-stage recorder. Altitude of gage is 1,550 ft (from topographic map). Prior 

tTo Mar. 1, 1939, at site a quarter of a mile downstream at different datum.

Average discharge . 32 years, 8.41 cfs; median of yearly mean discharges, 5.5 cfs. Average comoinea discharge of creek and City Creek Water Co.'s canal, 27 years (1924-51), 

10.1 cfs; median of yearly mean combined discharges, 7.3 cfs.

Extremes . Maximum discharge during year, 71 cfs Apr. 29 (gage height, 2.29 ft); no flow 

on many days during year.

1919-51: Maximum discharge, 6,900 cfs Mar. 2, 1938, result of slope-area determination of peak flow; no flow during several months of many years.

1924-51: minimum combined daily discharge of City Creek and canal, less than 0.05 

cfs Sept. 1-11, 1948, Aug. 12-26, 1951.

Remarks . Records good. Discharge measurements generally made twice a month. 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 1950 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.

0

0

0

Nov.

0

T)

O

0

0

0

O

0

0

0

0

o

6.3

20 -J.7

2.0

.1

O

.1

0

0

o

.1

.1

.1

.1

.1

.1

.1

.1

-

37.0

1.23

73

Dec.

0.1

.1

.1

.1

.1

0

s

.1.1

.2

.2

.3

.3

.3

.3

.3

.5

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.4

5.3

0.17

11

Jan.

0.4

.3

.2

.1

.T

.1

.1

.1

.1

.1

6.3

5.7

3.9

2.3

.1

.1

.1

.1

3.5

.6

.1

.1

.1

.1

.1

.1

.1

.2

5.3

6.4

tt

43.0

1.39

85

Feb.

4.5

1.7

.4

.1

1.5

2.7

2.5

2.5

2.5

2.5

2.7

6.3

377

2.2

1.5

.8

.6

.6

.2

O

0

0

0

0

0

0

3.4

4.2

_

-

47.1

1.68

93

Mar.

6.0

5.4

4.8

5.1

5.4

5.7

5.7

6.5

6.9

S75

5.7

5.4

5.1

2.2

1.0

.8

.6

.1

~.l 0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

80.1

2.58

159

Apr.

0.1 ^

.1

.1

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

.1

.1

.1

-.1

.1

.1

.1

6.8

6.3

3.9

7.3

30

T?

-

68.7

2.29

136

Calendar year 1950: Max 82 Mln O Mean 2.18

May

8.9

^75

5.7

2.9

1.2

.8

.8

.6

.3

0

0

.1

.1

1.8

0

0

o

0

0

.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

31.4

1.01

62

June

0.1

0

S

.1

.3

0

0

0

0

0

0

0

0

0

0

0

.1.1

,1

0

0

0

0

0

0

0

0

0

0

0

-

0.8

0.03

1.6

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Ac-ft 1,580

Water ye,ar 1950-51: Max 30 Mln 0 Mean 0.86 Ac-ft 622

Peak discharge (base, 150 cfs). No peak above base. 

a No gage-height irecord; discharge

on nearby streams.

ge estimated on basis of weather records and records for stations
SANTA ANA RIVER BASIN 61

Combined discharge, in cubic feet per second, of City Creek and canal near Highland, Calif., 

water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

1819'

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ao-ft

Oct.

0.4

.4

.3

.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.5

.8

.9

.7

.6

.8

10.2

0.33

20

Nov.

1.1

.7

.4

.3

.1

.5

.5

.5

.5

.5

.5

.7

7.1

20

T.7

2.1

.3

.3

4.9

4.4

2.6

1.8

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.7

70.7

2.36

140

Dec.

1.8

2.0

2.0

2.0

1.9

1.6

rrr

1.7

1.6

1.7

1.7

1.8

1.8

1.9

2.0

2.0

2.2

271

1.8

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.9

1.9

1.7

1.7

2.0

56.7

1.83

112

Jan.

1.9

2.0

1.9

1.9

2.0

2.0

1.9

1.8

T^

2.5

8.0

5.7

3.9

2.9

2.2

2.8

2.7

2.5

8.8

5.1

3.7

3.2

3.0

2.8

2.6

2.5

2.4

2.9

~5.0 10

6.1

112.5

3.63

223

Feb.

4.5

3.0

2.6

2.3

2.6

2.7

2.5

2.5

2.5

2.5

2.7

6.3

T7T

2.2 276-

2.5

2.3

2.3

2.6

2.6

2.6

2.9

3.1

2.9

3.2

3.3

5.1

4.2

_

-

84.8

3.03

168

Mar.

6.0

5.4

4.8

5.1

5.4

5.7

5.7

6.5

6.9

S75

5.7

5.6

5.1

2.8

2.0

2.0

2.1

2.2

2.5

2.7

2.9

3.0

3.0

2.9

2.7

2.9

2.9

2.9

2.9

3.2

3.0

123.0

3.97

244

Apr.

2.8

2.7

2.8

3.3

4.5

4.0

3.5

3.2

2.9

2.8

£.6

2.4

2.3

7^

2.5

2.6

2.7

2.7

2.9

3.8

3.0

2.6

2.7

2.7

9.1

6.4

3.9

7.5

30

T2

-

139.2

4.64

276

Calendar year 1950: Max 82 Mln 0.1 Mean 3.74

May

8.9

tt

5.7

4.9

4.1

3.6

3.4

3.2

3.4

3.0

3.3

3.4

3.7

8.6

4.8

3.9

3.3

2.9

2.7

2.6

2.9

2.7

2.6

2.3

2.0

1.8

1.7

1.5

TX

1.5

1.7

108.5

3.50

215

June

1.7

1.3

1.2

1.4

1.8

2.0

2.1 ^

1.9

1.6

1.4

1.3

1.2

1.2

1.1

1.2

1.4

1.2

1.2

1.3

1.3

1.4

1.2

1.0

.9

.7

.6

.5

.4

.3

-

37.9

1.26

75

July

0.3 ~7S

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

5.3

0.17

11

Aug.

0.1

rr.1.1.1

.1.1.1.1.1

.1

0

c

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1.1.1.1

1.6

0.05

3.2

Sept.

0.1

rr.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

.2

.1

-

3.2

0.11

6.3

Ac-ft 2,700

Water year 1950-51: Max 30 Mln 0 Mean 2.06 Ac-ft 1,490

Devil Canyon Creek near San Bernardino, Calif.

Location. Lat 34"12"05", long. 117*20'10", in Muscupiabe Grant, on right bank 0.5 mile 

downstream from tributary and 7.3 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, DecemDer isis to September 1951.

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 1,800 ft (from

 topographic map). Prior to December 1919, staff gage at site 500 ft downstream at

different datum. 

Average, discharge.--32 years (1913-14, 1920-51), 1.86 cfs; median of yearly mean discnarges, U.H cfs. 

Extremes. No flow during year.

 1513-14, 1919-51: Maximum discharge, 3,320 cfs Mar. 2, 1938, based on rainfallrunoff studies; no flow for periods in most years. 

Remarks. No flow since May 16, 1950. Figures for calendar year 1950 are as follows:

 total cfs-days, 52.27; maximum daily discharge, 13 cfs; minimum daily, zero; mean, 0.14 

cfs; runoff, 104 acre-ft. Records of diversion above station for municipal supply furnished by city of San Bernardino are tabulated below.

Month

December .................

March. ...................

Diversion 

in 

acre-feet

67

-98

Month

June .....................

July .....................

Diversion 

in 

pore-feet

70

82

56

27

726
62 SANTA ANA RIVER BASIN

Lytle Creek near Fontana, Calif.

Location (revised) .--La t 34°12i45", long. 117°27'40", in NWjjSEij sec. 36, T. 2 N., R. 6 W. 

(unsurveyecu, on right bank at downstream side of highway bridge abutment, 1.3 miles upstream from left tributary and 8£ miles north of Fontana.

Drainage area. 46.9 sq mi (revised).

Records available. October 1918 to September 1921, October 1922 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,200 ft (from topographic map). Prior 

fo Mar. 22, 1938, water-stage recorder at site 1 mile downstream at different datum.

Average discharge. 32 years, 8.70 cfs; median of yearly mean discharges, 1.3 cfs.

Average combined discharge of creek, conduit and infiltration line, 38.6 cfs; median of 

combined yearly mean discharges, 31 cfs.

Extremes.--Maximum discharge during year, 65 cfs Apr. 28 (gage height, 1.86 ft); no flow 

during most of year.

1918-21, 1922-51: Maximum discharge, 25,200 cfs Mar. 2, 1938, result of slope-area 

determination of peak flow; no flow during most of each year.

Remarks. Records fair. For irecords of combined discharge of Lytle Creek and diversions 

by California Edison-Cn's conduit and Fontana Union Water Co.'s infiltration line, see 

following page.

Cooperation. Records of flow through conduit furnished by Southern California Edison Co. 

and through infiltration line by Fontana Union Water Co.

Revisions (water year). W 1011: 1943.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

J.7

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

(*)

0

0

o

Nov.

0

C

o

0

0

0

0

0

0

0

0

0

3~5" 5.0

o

0

o

0

0

0

0

0

*0

0

0

0

0

0

0

0

-

8.6

0.29

17

Dec.

(»)

0

0

0

Jan.

0

0

o

0

0

0

0

o

0

0

*.6 o 

0

0

o

o

0

0

.4

0

0

0

o

*o

0

0

0

0

.3

0

0

1.3

0.04

2.6

Feb.

(*)

_

_

-

0

0

0

Mar.

(*)

0

0

o

Apr.

0

0

0

0

*0

0

0

0

0

o

0

o

o

o

0

0

0

0

o

o

0

o

0

0

0

0

o

4.1

274

o

-

6.5

0.22

13

May

0

O

0

June

(*)

-

O

0

o

July

(*)

0

0

0

Aug.

(*)

(*)

0

0

0

Sept.

(*)

-

0

0

0

Calendar year 1950: Max 16 Mln O Mean 0.17 Ac-ft 122

Water year 195O-51: Max 5.O Mln O Mean 0.04 Ac-ft 33

Discharge measurement made on this day.
SANTA ANA RIVER BASIN 63

Combined discharge, In cubic feet per second, of Lytle Creek, Southern California Edison Co.

conduit, and Fontana Union Water Co. Infiltration line near Fontana, Calif.,

water year October 1950 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

Ao-ft

Oct.

11

TC

10

10

10

10

10

10

10

10

9.9

9.9

10

10

10

10

10

10

9.8 9-79-

10

10

10

10

11

11

11

1111

1111

317.5

10.2

630

Nov.

11

11

11

11

11

12

12

12

12

10

12

12

15

T.7

9.8

13

12

12

11

7.2

7.2

6.8

675" 6.5

6.5

6.8

6.9

6.9

6.9

6.9

-

292.6

9.75

580

Dec.

7.0

7.0

7.0

7.0

7.0

7.0

6.8

772

6.9

6.9

7.0

6.9

7.0

7.3

7.7

7.4

7.1 7.6

7.7

7.9

7.6

7.7

8.0

8.3

8.7

8.6

9.0

9.1

57?

8.8

9.1

237.2

7.65

470

Calendar year 1950: Max 40

Jan.

9i7

9.6

374~ 9.2

10

9.7

9.8

10

10

11

12

11

11

11

11

11

11

11

12

11

11

11

11

11

12

12

11

12

14

T2

13

340.4

11.0

675

Feb.

13

13

13

12

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

12

12

12

11

10

_

_

-

355

12.7

704

Mar.

11

T2

13

TJ

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

13

12

396

12.8

785

Apr.

12

12

12

13

13

12

12

12

12

12

12

12

11

T2

12

12

12

11

12

12

11

11

11

12

11

11

12

17

TJ

13

362

12.1

7-18

Min 6.5 Mean 13.9

May

14

14

14

14

13

13

13

13

12

12

13

12

12

13

13

12

12

11

11

11

11

11

11

10

TC

11

ll

11

11

11

11

371

12.0

736

June

10

9.7

10

11

TT

11

11

11

11

10

10

8.8 876"

9.6

10

9.9

9.9

9.9

9.9

10

10

10

10

10

9.8

9.8

9.8

9.5

9.5

9.3

300.2

10.0

595

July

9.5

9.6

?76

9.5

9.3

9.3

9.3

8.9

9.1

9.3

9.1

8.9

8.9

8.8

8.9

8.8

8.7

9.0

8.8

8.8

9.0

8.8

8.8

8.8

8.8

8.8

8.6

8.9

8.7

8.6

8.2

278.1

8.97

552

Aug.

12

12

12

12

12

12

12

12

12

12

12

12

12

11

12

11

11

11

12

12

11

11

11

11

10

10

9.9

11

11

11

353.9

11.4

702

Sept.

11

TT

11

11

11

11

11

11

11

11

11

10

10

10

10

9.8

10

9.7 ic 

9.8

9.7

9.7

9.7

9.9

9.9

9.9

9.9

9.8

10

10

308.8

10.3

612

Ac -ft 10,050

Water year 1950-51: Max 17 Min 6.5 Mean 10.7 Ao-ft 7,760
64 SANTA ANA RIVER BASIN

Cajon Creek near Keenbrook, Calif.

Location.--Lat 34°16'00", long. 117°27'35", in SW^SE^ sec. 12, T. 2 N., R. 6 W., on right

 bSnk 1,800 ft upstream from Lone Pine Creek and 1.5 miles north of Keenbrook.

Drainage area.--40.9 sq mi.

Records available.--December 1919 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,630 ft (from topographic map). Prior

 £o Oct. 24, 1935, water-stage recorder at site 1,500 ft downstream at different datum.

Average discharge . 31 years (1920-51), 9.55 cfs; median of yearly mean discharges, 6.2 

cTs~i

Extremes.--Maximum discharge during year, £2 cfs Nov. 13 (gage height, 4.51 ft); minimum 

daily, 1.4 cfs Aug. 12-19.

1919-51: 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.

Remarks. Records good. Discharge measurements generally made twice a month. No diversion above station.

Revisions (water year).--W 1091: 1946.

Rating table, water year 195O-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used July 9-27, Aug. 27-29, Sept. 17-30)

4.12 1.4

4.2 4.2

4.3 8.5

Discharge, ir October 195O 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.

2.4

2.4 ia

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.7

2.7

3.1

2.7

2.7 

2.7

2.7

73.0

2.35

145

Nov.

2.4

2~7T

2.1

2.4

2.1

2.1

2.1

2.1

2.1

2.1

2.1

4.7

3.4

3.4

3.1

3.1

3.1

3.1

3.1

2.7

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

77.1

2.57

153

Dec.

2.4

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.

74.4

2.40

148

Jan.

2.4

2.

2.

2.

2.

2.

2.

2.

3.0

3.8

3.1

3.1

2.7

2.7

2.7

2.7

2.7

3.1

2.7

2.7

2.7

2.7

2.4

2.4

2.4

2.4

2.4

H3.8

85.8

2.77

170

Feb.

3.1

2.7

2.7

2.7

2.7

2.7

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.7

2.7

2.7

2.7

2.7

3.1

2.7

2.7

2.7

3.1

2.7

-

73.8

2.64

146

Mar.

3.4

5* 

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.

2. 

2.

2.

81.7

2.64

162

Apr.

2.4

2.4

2.4

2.7

2.7

2.7

2.7

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.7

2.7

2.7

2.7

2.7

2.7

2.4

2.4

2.4

3.4

3.1

2.7

3.4

3.8 

2.7

-

79.7

2.66

158

May

2.7

2.4

2.4

2.4

2.4

2.1

2.1

LJ.

1.7

2.1

2.1

2.4

2.7

2.4

2.1

2.1

2.1

2.4

2.4

2.7

2.4

2.4

2.1

2.1

1.7

1.7

1.7

1.7 

1.7

2.1

67.7

2.18

134

June

2J,

1.7

1.7

2.1

2.1

2.1

2.1

2.1

2.1

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

2.1

2.1

2.1

1.7

1.7

1.7

1.7

1.7

1.7

1.7 

1.7

-

55.0

1.83

109

July

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

^1

2.1

2.1

2.1

1.7

1.7

1.7

1.7

2.1

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

54.7

1.76

108

Aug.

1.7 

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.7

1.7

1.7

1.7

1.7

1.7

2.1

2.1

2.1

2.1 

2.1

2.1

52.7

1.70

105

Sept.

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

2.1

2.1

2.1

2.1

2.1

1.7

1.7

1.7

1.7

1,7

2.1

2.1

2.4

1.7

1.7

-

60.5

2.02

120

Calendar year 1950; Max 17 Mln 1.4 Mean 3.17 Ac-ft 2,290

Water year 1950-51; Max 4.7 Mln 1.4 Mean 2.29 Ac-ft 1,66O

Peak discharge (base, 140 ofsl. No peak above base.

Note. No gage-height record Dec. 28 to Jan. 10, Aug. 3O to Sept. 16; discharge estimated on basis 

of recorded range In stage and records for Lone Pine Creek near Keenbrook.
SANTA ANA RIVER BASIN 65

Lone Pine Creek near Keenbrook, Calif.

Location. Lat 34°15'55", long. 117°27'55", in SEi sec. 12, T. 2 N., R. 6 W., on right 

bank 50 ft upstream from Atchison, Topeka & Santa Pe Railway bridge, 120 ft upstream 

from mouth, 0.7 mile northeast of Keenbrook, and 16 miles northwest of San Bernardino.

Drainage area. 15.0 sq mi.

Records available.--December 1919 to September 1938, June 1949 to September 1951.

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 at same site at datum 0.98 ft higher (destroyed by flood). Mar. 

2, 1938, to Sept. 30, 1938, staff gage at same site at datum 0.98 ft higher.

Average discharge.--20 years (1920-38, 1948-51), 1.50 cfs; median of yearly mean discharges, 

0.5 cfs.

Extremes. Maximum discharge during year, 2.1 cfs Nov. 13 (gage height, 1.69 ft); minimum 

daily, 0.1 cfs on many days.

1919-38, 1949-51: Maximum discharge, 6,180 cfs Mar. 2, 1938, result of slope-area 

determination of peak flow; minimum, 0.1 cfs at times during 1926-32, 1951.

Remarks.--Records good. Discharge measurements generally made twice a month. No diversion above station.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.24

1.3

1.4

0.1 

.2

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

3O

31

Total

Mean

Ac- ft

Oct.

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

_^3

.3

.3

.3

.3

.3

.3

6.9

0.22

14

Nov.

~0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

73

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

-

7.4

0.25

15

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

6.2

0.20

12

Jan.

~0.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

-t

.3

.2

6.8

0.22

13

Feb.

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

_

_

-

5.6

0.20

11

Mar.

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

Apr.

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

.3

.2

.2

-

6.1

0.20

12

May

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

June

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

-

6.0

0.20

12

July

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

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

Calendar year 1950: Max 1.2 Mln 0.2 Mean 0.34 Ac-ft 245

Water year 1950-51 : Max 0.4 Mln 0.1 Mean 0.19 Ac-ft 133
66 SANTA ANA RIVER BASIN

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

Location. Lat 34°05'45", long. 117°19'50", 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,050 ft (from topographic map). Prior 

Co Mar. 2, 1938, at site a quarter of a mile upstream at different datum.

Extremes. Maximum discharge during year, 15 cfs May 13 (gage height, 1.65 ft); minimum 

dally, 0.1 cfs on many days.

1929-51: Maximum discharge, 21,500 cfs Mar. 2, 1938, result of contracted-opening 

determination of peak flow; no flow during parts of many years.

Maximum total discharge of Lytle Creek (east and west channels combined), 29,400 

cfs Mar. 2, 1938.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements generally made twice a month. Water diverted from Lytle Creek 

above station by Fontana pipeline. Minor diversions for irrigation and to debris cone 

for ground-water recharge. Since 1945, Lytle Creek flood-control dam 1.5 miles above 

station has diverted flood flow away from this channel and carried it direct 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 this channel.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, In cubic feet per second)

0.9

1.0

1.1

1.2

1.0 

1.9

Discharge, In cubic feet per second, water year October 1950 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.

0.5

1.0

.8

1.0

1.0

.9

.2

.1

7Z

.3

.3

.2

.2

.2

.5

.7

.2

.6

.7

.5

.3

.8

.8

.3

.4

.8

1.1 f

.5

.7

1.1

17.3

0.56

34

Nov.

~75 1.2

1.0

.2

75

.6

.5

.4

1.1

.6

.6

.5

.6

a. 6

a. 6

a. 6

a. 6

a. 6

a. 6

a. 5

.5

.5

.3

.4

.3

.3

.5

.6

.3

.4

-

16.8

0.56

33

Dec.

0.4

.3

.2

.3

.4

~7f 1.0

.4

.2

.2

.3

.3

.3

.3

.4

.2

.2

.3

.3

.3

.4

.4

.3

.2

.2

.3

.3

.3

.3

.2

^I_

9.7

0.31

19

Jan.

0.2

.3

.2

.2

.2

.1

71

a.l

a. 2

a. 4

a. 6

.6

.5

.4

.7

1.0

.7

.7

1.6

.4

.4

.6

.6

.7

.7

.6

.5

.6

1.8

'.6

17.0

0.55

34

Feb.

0.6

.6

.3

.3

.4

.3

.3

.3

.3

^2_

.2

.4

.3

.3

.3

.3

.2

.2

.3

.3

.3

.4

.4

.5

.4

~7T 1.1

.5

_

_

-

10.7

0.38

21

Mar.

1.7 ~75

.5

.4

.5

.5

.4

.5

.5

.3

.3

.3

.4

.5

.4

.4

.3

.2

75

.5

.9

.4

.4

.3

.4

.5

.5

.4

.4

.4

.2

14.5

0.47

29

Apr.

0.3

.3

.3

.8

.8

.3

73" .2

.3

.5

.4

.5

.4

.3

.4

1.1

.9

.5

.7

.5

.4

.4

.4

.4

1.8

.7

.4

1.6

.6

.6

-

17.1

0.57

34

May

0.4

.5

.3

.3

.1

.3

.3

.4

.8

1.2.

1.2

.3

1.6

1.9 ~7I

.5

.4

.5

.3

.3

.7

1.1

1.2

1.0

.5

.1

.2

.3

.2

.1

.2

17.6

0.57

35

June

0.3

.2

7S

.3

.2

.3

.3

.4

.2

.3

.5

.8

.3

.3

.3

.3

.2

1.0

.5

1.1

.5

.5

.3

.2

.3

.3

.5

.4

.4

.3

-

11.7

0.39

23

July

0.4

.4

.5

7T

.4

.4

.3

.175

.3

.3

.3

.3

.2

.2

.3

.3

.3

.3

.2

.2

.2

.3

.3

.3

.4

.3

.3

.3

.4

.4

9.8

0.32

19

Aug.

0.5

.3

.5

.3

.5

.6

.8

.8

.6

.8

.4

.5

.5

.6

.8

.5

.3

.2

7Z

.3

.6

.8

.9

73

.6

.6

.6

.3

.4

.8

.4

16.8

0.54

33

Sept.

0.3

.3

y

75

.3

.3

.4

.3

.2

.5

.5

.5

.5

.3

.3

.3

.4

.4

.5

.5

.5

.4

.2

.977"

.4

.4

.5

.3

.4

-

12.0

0.40

24

Calendar year. 1950: Max 8.0 Min o.l Mean 0.71 Ac-ft 509

Water year 1950-51: Max 1.9 Min 0.1 Mean 0.47 Ac-ft 338

a No gage-height record; discharge estimated on basis of weather records and records for Cajon 

Creek near Keehbrook.
SANTA ANA RIVER BASIN 67

Warm Creek near Colton, Calif.

Location.--Lat 34°04iOO", long. 117°18'30", in San Bernardino Grant, on right bank 10 ft 

upstream from Colton Avenue Bridge, 0.4 mile upstream from mouth, and 1.2 miles east 

of Colton, San Bernardino County.

Records available.--August 1920 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 970 ft (from topographic map). Prior 

fo October 1939', during extreme low water periods only, at same site at datums varying 

from 1.00 ft to 2.50 ft lower.

Average discharge. 31 years, 51.7 cfs. 

& uaiey uanal, 31 years, 63.0 cfs.

Average combined discharge of Warm Creek and Meeks

Extremes. Maximum discharge during year. 748 cfs Jan. 11 (gage height, 4.87 ft); minimum,

 nT"cfs July 17 (gage height, 0.71 ft).

1920-51: Maximum discharge, 27,500 cfs Mar. 2, 1938 (gage height, 11.2 ft), result 

of slope-area determination of peak flow; minimum, that of July 17, 1951. 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 three times a month. For records of combined 

discharge of Warm Creek and Meeks & Daley Canal, which diverts above station for irrigation, see following page. City of San Bernardino sewage disposal plant discharged 

8,240 acre-ft into Warm Creek above station during year. 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).--W 1061: 1944-45.

Rating table, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 1 to Nov. 4)

0.9 

1.0 

1.2

4.9 

8.0

1.4 

2.2

Discharge, In cubic feet per second, water year October 1950 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

It).

Oct.

16

16

17

17

18

17

17

16

16

17

17

17

17

18

17

18

18

16

17

16

15

14

TS

17

17

17

17

17

17

18

17

520

16.8

1,030

662

Nov.

17

16

16

15

13

15

14

14

14

14

14

13

51

3Z

23

22

23

25

49

40

38

36

36

36

33

30

29

29

28

22

-

757

25.2

1,500

663-

Dec.

22

21

20

22

23

21

22

22

21

20

21

21

20

20

20

20

20

20

20

20

20

20

19

18

TS

20

21

22

23

22

20

639

20.6

1,270

685

Jan.

20 Z5

23

23

23

22

20

23

23

33

109

T5

42

41

42

42

37

37

58

35

34

36

35

36

36

35

32

32

67

38

41

1,143

36.9

2,270

675

Feb.

42

43

43

42

43

43

43

43

42

42

41

41

41

40

38

38

37

37

38

33

27

75

30

29

28

40

59

37

_

_

-

1,086

38.8

2,15Cf

629

Mar.

-fs 71

43

42

43

44

44

43

43

43

42

43

42

38

30

29

28

27

27

25

25

25

23

23

22

23

23

23

22 Z5

23

1,050

33.9

2,080

714

Apr.

21

22

21

23

24

24

23

23

27

25

24

22

23

20

18

20

18

18

18

19

18

17

TS

18

84

25

21

43

49

38

764

25.5

1,520

669

May

34

34

28

19

19

18

19

20

20

19

20

19

18

82

75

29

28

22

17

16

17

17

16

17

17

16

15

17

15

13

T4

683

22.0

1,350

681

June

16

18

T5

17

17

17

17

17

17

15

16

17

16

16

16

16

15

16

16

16

16

15

15

14

al4

al3

a!3

al2

aT?

a!2

463

15.4

918

675

July

all

all

all

alO

alO

10

11

11

14

T5

12

11

11

11

9.5

11

10

12

11

12

12

10

12

12

12

11

all

all

all

all

all

345.3

11.1

685

739

Aug.

all

alO

alO

alO

alO

alO

10

10

10

10

9.3

Iff 8.4

11

10

11

11

14

T2

12

11

11

11

10

10

9.3

11

10

10

11

13

327.0

10.5

649

733

Sept.

10

8.4

9.3

11

11

11

11

11

9.7

11

11

11

9.7

9.7

9.7

9.3

10

10

11

10

10

9.3

8.0

9.7

9.3

8.8

8.8

12 ~9.3

7.7

-

297.7

9.92

59O

712

Calendar year 1950: Max 195 Mln 13 Mean 29.5 Ac-ft 21,300

Water year 1950-51: Max 109 Mln 7.7 Mean 22.1 Ac-ft 16,000

Peak discharge (base, 290 efs).--Jan. 11 (6:30 p.m.) 748 cfs (4.87 ft).

t Discharge from sewage plant of city of San Bernardino; Included In runoff figures given In above 

line (records furnished by that city). Total for calendar year 1950, 8,120 acre-ft; for water year 

1950-51, 8,240 acre-ft.

a No gage-height record; discharge estimated on basis of weather records and records for Meeks & 

Daley Canal near Colton.
SANTA ANA RIVER BASIN

Combined discharge, in cubic feet per second, of Warm Creek and Weeks & Daley Canal 

near Colton, Calif., 1950-Sl

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

.17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

36

36

36

36

37

36

36

35

36

37

36

36

37

38

BT

37

37

35

36

36

35

33

35

37

37

37

37

37

37

38

37

1,127

36.4

2,240

Hov.

37

35

35

34

32

34

33

33

33

33

34

33

69

3§

29

28

25

31

56

43

38

36

36

36

33

32

34

34

34

34

-

1,077

35.9

2,140

Dec.

38

37

36

38

IS

37

38

38

37

36

37

37

36

36

36

36

36

35

35

35

36

35

34

33

33

35

36

37

38

37

35

1,122

36.2

2,230

Jan.

35

38

38

38

39

38

36

39

38

48

119

47

42

41

42

42

37

37

58

35

34

35

35

36

36

35

35

38

73

43

43

1,331

42.9

2,640

Feb.

42

43

43

42

43

43

43

43

42

42

41

42

43

44

42

42

41

42

42

41

44

46

49

48

47

59

68

35

_

-

1,245

44.5

2,470

Mar.

73

IB

43

42

43

44

44

43

43

43

42

43

42

46

49

48

47

46

46

44

44

44

42

42

41

42

42

42

41

41

41

1,381

44.5

2,740

Apr.

39

40

39

42

43

43

41

39

41

39

40

41

41

39

38

39

37

37

38

39

38

36

BT

38

105

44

40

62

58

41

1,292

43.1

2,560

May

38

38

39

39

39

37

38

39

39

38

39

38

37

102 ~5H

35

34

33

35

34

35

35

34

34

34

33

33

35

33

31

3?

1,178-

38.0

2,340

June

34

36

3T

35

35

35

35

35

35

33

34

35

34

34

34

34

33

34

34

34

34

34

34

32

32

31

31

30

30

30

-

1,005

33.5

1,990

July

29

29

30

29

28

28

30

30

33

31

32

31

31

29

26

28

27

29

28

34

34

32

34

34

34

33

32

33

33

33

32

956

30.8

1,900

Aug.

33

3T

30

30

30

30

29

30

30

30

29

28

29

30

29

30

30

33

30

30

29

30

29

28

28

27

25

28

29

29

32

919

29.6

1,820

Sept.

28

27

28

29

29

29

29

29

28

29

29

29

28

28

28

28

28

28

29

28

28

28

26

25

28

28

28

32

25

27

-

850

28.3

1,690

Calendar year 1950: Max 196 Mln 28 Mean 43.4 Ac-ft 31,460

Water year 1950-51: Max 119 Mln 26 Mean 36.9 Ac-ft 26,760
SANTA ANA RIVER BASIN 69

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

Location. Lat 330 57'55'', long. 117°27 I 55", in Jurupa (Stearns) Grant, 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.

Records available. January 1929 to September 1951.

Gage. Water-stage recorder. Datum is 669.87 ft above mean sea level (levels by Riverside 

(Tounty engineer). Prior to Nov. 15, 1943, water-stage recorder l£ miles upstream at 

different datum. During this period temporary stations were maintained at different 

sites and datums within a quarter of a mile of the permanent gage.

Extremes. Maximum daily discharge during year, 127 cfs Apr. 29 (gage height, 1.99 ft); 

minimum daily, 25 cfs on many days.

1929-51: Maximum discharge, 100,000 cfs Mar. 2, 1938, on basis of slope-area determination of peak discharge; minimum daily, 20 cfs on several days during August and 

September 1947.

Remarks. Records good except those for period of missing gags heights, which are fair. 

Discharge measurements are generally made once a week. Plow regulated by Bear Lake 

(capacity, 72,000 acre-ft). Natural flow of stream affected by ground-water withdrawals 

and diversions for irrigation and return flow from irrigated areas. The Metropolitan 

Water District of Southern California released 28,467 acre-ft of Colorado River water 

into Santa Ana River about 1.1 miles above the station during year.

Discharge, In cubic feet per second, water year October 1950 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

(t)

Oct.

50

50

50

49

49

49

49 

48

33

32

32

32

31

30

30

30

28

27

27

28

30

30

31

31

30

31

31

31

31

3O

3O

1,090

35.2

2,160

314

Nov.

30

30

31

33

33

34

35 

34

34

34

34

34

39

50

36

36

36

36

41

41

37

36

34

35

35

34

35

34

34

33

1,058

35.3

2,100

0

Dec.

34

34

34

35

35

34

37 

36

37

34

34

35

37

38

38

39

51

38

37

37

37

37

37

37

37

37

37

37

37

37

37

1,128

36.4

2,240

0

Jan.

38

38

37

37

37

37

37 

38

37

38

45

46

38

37

38

45

41

39

44

42

46

48

49

45

44

49

39

37

66

54

45

1,311

42.3

2,600

O

Feb.

46

44

44

44

44

46

41 

39

39

39

42

44

39

38

39

39

39

39

38

39

38

42

42

41

41

42

55

44

_

_

-

1,167

41.7

2,310

0

Mar.

59

51

46

42

42

41

41 

41

39

39

39

38

41

38

57

38

58

92

92

88

86

88

9O

95

100

102

102

110

115

nJ

110

2,112

68.1

4,190

1.852

Apr.

110

112

no

108

105

102

105 

105

105

105

100

98

^2" 92

92

98

105

102

105

102

100

98

102

105

118

110

102

112

127

110

3,137

1O5

6,220

3,995

May

108

110

108

108

108

108

108 

108

108

108

110

112

112

124

112

112

112

112

112

110

103

108

108

108

102

98

95

88

88

86

88

5,287

106

6,520

4.504

June

88

90

88

88

90

92

92 

92

92

90

88

90

90

90

90

92

92

92

92

90

92

110

118

118

118

115

112

112

112

110

2,925

97.5

5,800

4,509

July

110

110

112

110

110

110

108 

108

110

110

112

11O

110

110

110

110

110

110

110

108

108

108

110

108

108

110

110

110

110

IU

3,404

110

6,750

5.534

Aug.

112

112

112

112

112

110

110 

110

110

110

112

11O

112

112

115

112

11O

110

108

108

108

1O8

105

105

105

105

90

45

a25_

a25

a25

3.O65

98.9

6,080

4.807

Sept.

a25

a25

a25

a25

a25

a25

a25 

a25

a25

a25

a25

a25

80

110

110

110

110

110

110

110

110

112

115

115

115

115

118

118

115

112

2,295

76.5

4,550

3,154

Calendar year 1950 : Max 148 Mln 27 Mean 62.2 Ac-ft 44,97O

Water year 1950-51 : Max 127 Mln 25 Mean 71.1 Ac-ft 51,520

Peak discharge (base. 500 cfs). No peak above base.

t Inflow from Metropolitan Water District of Southern California aqueduct. In acre-feet, which Is 

Included in figures given In preceding columns, as furnished by that agency. Total Inflow for calendar year 1950, 18.25O acre-ftj for water year 1950-51, 28,467 acre-ft.

a No gage-height record; discharge estimated on basis of comparative hydrograph of Santa Ana River 

stations.

256498 O - 53 - 6
70 SANTA ANA RIVER BASIN

Day Creek near Etiwanda, Calif.

Location. Lat 34°11'00", long. 117°32'25", in SWir sec. 8, T. I N., R. 6 W., on left bank 

U.a mile downstream from confluence of two main forks and 6 miles north of Etiwanda.

Drainage area.--4.8 sq mi, approximately.

Records available.--January 1929 to September 1951. Combined creek and diversions, October 

lyfau to September 1951.

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 2,940 ftf (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.

Average discharge.--22 years, 4.43 cfs; median of yearly mean discharges, 3.2 cfs.

Extremes.--Maximum discharge during year, 47 cfs Nov. 13 (gage height, 1.99 ft); no flow 

Oct. 5 to Nov. 1; minimum daily discharge of combined creek and diversion, 0.5 cfs Aug. 

18-25, Sept. 14-18.

1929-51: Maximum discharge, 4,200 cfs Mar. 2, 1938, based on rainfall-runoff studies; 

no flow Oct. 5 to Nov. 1, 1950.

Remarks.--Records fair. Discharge measurements generally made twice a month. Etiwanda 

 Water Co. diverts water above station for irrigation and ground-water recharge. For 

records of combined discharge of creek and diversion see following page.

Rating table, water year 1950-51 (gage height, in feet, and

discharge, in cubic feet per second) 

(Shifting-control method used Jan. 11-16)

1.0 

1.2

4.3 

7.5

Discharge, in cubic feet per second, water year October 1950 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.

0.1

.1

.1

.1

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0.4

0.01

0.8

Nov.

0

.1

.4

.1

.1

.1

.1

.1

.1

.5

1.1

.6

6.0

1.0

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

-

13.5

0.45

27

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

Jan.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

1.6

1.1

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.3

.3

.3

3.2

2.4

1.5

15.4

0.50

31

Feb.

1.4

1.2

.7

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

_

-

9.3

0.33

18

Mar.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.6

1.7

1.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

a. 3

a. 3

10.8

0.35

21

Apr.

aO.3

a. 3

a. 3

a. 3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.4

.3

.3

3.6

4.0

2.1

-

17.1

0.57

34

May

aO.3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 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

6.9

0.22

14

June

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

-

6.0

0.20

12

July

~0.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.il

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.8

0.15

9.5

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

O.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

.2

.2

.2

.2

.2

.2

.3

72

.2

-

4.0

0.13

7.9

Calendar year 1950: Max 27 Min 0 Mean 0.53 Ac-ft 382

Water year 1950-51: Max 6.0 Min 0 Mean 0.27 Ac-ft 193

Peak discharge (base. 25 cfs). Nov. 13 (5:30 p.m.) 47 cfs (1.99 ft); Apr. 28 (8:3O p.m.) 35 cfs 

(1.80 ft;.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for Day Creek diversion station.
SANTA ANA KIVER BASIN 71

Combined discharge, In cubic feet per second, of Day Creek and diversion 

near Etwanda Calif, water year October 1950 to September 1951

Day

1

3

5

4

5

6

7

8

9

10 

11

12

13

14

15

16

17

18

19

20

21

22

H3

24

25

26

27

28 

H9

30

31

Total

Mean

Ac-ft

Oct.

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

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

43.8

1.41

37

Nov.

T7i" 1.4

1.4

1.5

1.5

1.5

1.5

1.5

1.5

1.5 

1.4

1.5

Z^o

H.5

H.I

1.7

1.7

1.9

3.1

H.5

2.2

1.9

1.9

1.8

1.8

1.8

1.8

1.6 

1.7

1.8

-

58.4

1.95

116

Dec.

1.8

1.7

1.7

l.S

1.7

l.S

1.7

1.6

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

1.5

1.5

1.5

1.5

1.5

1.5

1.6 

1.6

1.6

1.6

48.3

1.56

96

Jan.

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

2.7

H.O

1.7

1.6

1.6

1.7

1.6

1.7

2.2

1.6

1.7

1.5

.1.6

1.5

1.5

1.7

1.7

1.8 

4.2

279

2.2

56.8

1.83

113

Feb.

H.O

1.7

H.O

2.1

1.9

1.9

1.8

1.8

1.7

1.7 

1.7

H.O

1.8

1.8

1.8

1.8

1.8

1.8

1.9

1.9

1.9

2.0

2.0

2.0

2.0

2.1

2.2

275

_

-

53.1

1.90

105

Mar.

H.3

H.I

2.1

H.I

2.2

3.3

2.3

H.4

H.4

2.4 

2.5

H.4

H.4

2.4

2.3

2.3

H.O

2.0

2,1

2.2

2.0

2.0

2.0

1.9

179

1.9

1.9

1.9 

1.9

1.9

1.9

66.4

2.14

132

Apr.

1.8

1.7

1.8

1.8

2.0

H.O

1.9

1.8

1.6

1.6

1.4

1.3

1.3

1.3

1.3

1.3

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.9

l.C

1.5

4.8 

4.0

3.6

-

54.1

1.80

107

May

2.3

270

1.9

1 .£

1.8

1.8

1.8

1.7

1.7

1.8

1.9

2.1

2.1

1.8

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.4

1.4 

1.4

1.4

1.4

52.8

1.70

105

June

1.4

1.4

1.3

1.3

1.5

1.5

1.5

1.5

1.4

1.3 

1.3

1.3

l.H

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.4

1.4

1.3

1.3

1.2

1.2

1.2

t*

1.1

-

38.7

1.39

77

July

1.1

T7T

1.1

1.1

1.1

1.0

.9

.9

.9

1.0 

1.0

1.0

.9

.9

.9

.9

.9

.8

78

.8

.8

.8

.8

.8

.8

.8

.8

.9 

.8

.8

.8

28.0

0.90

56

Aug.

0.8

.8

.8

.8

.8

.8

.8

.8

.8 

. 3

.8

.8

.7

.7

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.8 

.8

.8

.8

21.2

0.63

42

Sept.

0.8

.8

.7

.7

.7

.7

.6

.6

.6 

.6

.6

.6

.6.

.5

75

.5

.5

.5

.6

.6

.6

.7

.8

.8

.8

.8

.9

U, 

.9

.9

-

20.6

0.69

41

Calendar year 1950: Max - Mln - Mean - Ao-ft

Water year 1950-51: Max 7.0 Mln 0.5 Mean 1.49 Ao-ft 1,080
72 SANTA ANA RIVER BASIN

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

Location. Lat 33°56'50", long. 117°33'30", in Jurupa Grant, on left bank 300 ft down-

 stream from Hamner Avenue Bridge, 5 miles north of Corona, Riverside County, and 

5 miles upstream from Temescal Creek.

Records available.--May 1930 to November 1951 (irrigation seasons only).

Gage.--Water-stage recorder. Altitude of gage is 570 ft (from topographic map). Prior

 £o May 1, 1946, water-stage recorder at several sites within 1 mile of the present 

site, at various datums.

Remarks. Records fair. Discharge measurements generally made once a. week. Storage in 

Bear Lake (capacity, 72,000 acre-ft). Many diversions for irrigation in basin above 

station. Flow past station includes Colorado River water released to Santa Ana River 

by Metropolitan Water District of Southern California (see Santa Ana River at Riverside Narrows, near Arlington).

C ooperation. Twenty-fo ur discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Rating table, irrigation season 1951 (gage height. In feet, 

and discharge, in cubic feet per second)

1.6 

1.9

2.1

2.2

114

145

Discharge, in cubic feet per second, January to December 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

Jan.

t59

Feb. Mar.

till

Apr.

_

_

_

-

-

_

_

_

_

-

_

_

_

_

-

_

_

-

_

-

_

.

_

_

-

t!25

t!05

_

-

t!28

-

_

_

-

May

123

123

123

123

123

120

120

117

117

117

all7

a!20

a!20

a!26

TT4

112

114

114

114

112

109

109

109

109

106

104

101

99

W

99

99

3,512

113

6,970

Calendar year : Max Mln

June

99

96

96

96

99

104

104

104

101

101

99

96

96

92

89

89

92

92

89

W

89

101

112

114

TT2

112

109

109

106

109

-

2,996

99.9

5,940

Jnly

109

109

106

104

104

104

101

TOT

104

104

109

112

109

109

106

109

109

109

109

106

104

104

109

109

109

109

112

109

114

TT2

112

3,336

108

6,620

Mean

Aug.

112

112

109

109

109

106

106

109

112

112

112

112

TT2- 114

112

109

109

104

106

106

104

106

106

106

104

106

99

50

36

32

30

3,071

99.1

6,090

Sept.

30

29

28

27

24

24 55

25

25

25

25

25

52

99

106

109

109

112

109

106

106

106

109

112

112

112

112

114

HI

114

-

2,225

74.2

4,410

Oct.

114

114

114

114

112

112

112

112

112

114

114

117

117

120

120

120

120

120

120

120

120

120

120

123

133

130

123

117

117

120

123

3,664

118

7,270

AO-ft

Nov.

120

117

114

114

114

114

114

117

117

117

120

120

120

120

120

114

112

TT2

114

117

117

117

123

T23- 133

123

126

130

126

126

-

3,571

119

7,080

Dec.

.

-

-

t!32

-

.

t!24

-

-

-

_

-

-

-

-

.

-

-

-

-

t!24

-

-

-

-

_

-

_

-

-

-

_

-

-

Water year : Max Mln Mean Ao-ft

t Result of discharge measurement.

a Ho gage-height record; discharge estimated on basis of comparative hydrograph of Santa Ana River 

stations.
SANTA ANA RIVER BASIN 73

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

Location.--Lat 33°55'30", long. 117 0 35'40", in Jurupa Grant, on right bank 50 ft upstream 

rrom Auburndale Bridge on River Street, 2 miles upstream from Temescal Creek, and 

4 miles northwest (correction) of Corona, Riverside County.

Records available.--May 1930 to November 1951 (irrigation seasons only).

Gage. Water-stage recorder. Altitude of gage is 514 ft (from topographic map). Prior 

ITo May 1946, at various sites within 1,000 ft of the bridge and at different datums.

Remarks. Records fair. Discharge measurements generally made once a week. Storage in 

Hear Lake (capacity, 72,000 acre-ft). Many diversions for irrigation in basin above 

station. Plow 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; measurements of ditch from April 1951 to December 1951 are as follows:

Date

Apr. 26

30

May 8

15

22

29

June 12

19

Discharge

1.09

1.40

1.25

1.20

1.36

1.05

1.19

1.02

Date

June 26

July 2

10

17

24

31

Aug. 7

Discharge

1.02

1.10

.98

.93

1.15

1.06

1.06

Date

Aug. 18

29

Sept. 4

11

26

Oct. 1

9

Discharge

0.96

6.20

6.61

5.97

1.43

1.13

.99

Date

Oct. 16

23

Nov. 6

13

20

28

Dec. 4

Discharge

1.08

1.25

1.23

1.26

.90

1.09

1.17

Cooperation. Nineteen discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.5

.8 

1.1

25

84

152

Discharge, In cubic feet per second, January to December 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

Jan.

t63

_

_

-

Feb.

t71

-

-

-

.

_

Mar,

tl!7

_

Apr.

_

_

_

_

-

_

_

_

-

-

_

_

_

-

.

_

_

-

-

_

_

_

_

tl!9

_

t!31

_

-

t!44

-

_

_

-

May

135

1375

133

130

130

128

128

126

126

123

123

126

130

135

128

121

123

123

123

123

119

119

116

114

114

112

110

107

105

103

TC5

3,766

121

7,470

June

103

103

101

101

105

107

110

110

107

107

103

103

103

99

99

101

101

99

97

94

94

99

119

121

T2T

121

121

119

116

119

-

3,203

107

6,350

July

119

121 TTB116

116

114

112

114

114

112

114

116

116

116

114

114

114

112

114

114

110

TOT

110

110

110

112

114

116

119

119

116

3,544

114

7,030

Aug.

116

116

114

114

114

112

112

114

114

116

116

116

116

119 TT9-

119

116

116

110

110

107

107

107

107

a!07

a!07

a!07

a70

a38

33

29

3,218

104

6,380

Sept.

31

31

29

27

22

23

22

22

22

22

22

23

47

99

101

105

110

116

110

110

116

119

116

121

119

119

121

121

121

123

-

2,290

76.3

4,540

Oct.

126

123

123

121

119

116

116

114

TIT

119

121

121

123

121

121

119

119

119

119

121

119

119

123

126

135

133

130

133

133

135

140

3,821

123

7,580

Nov.

138

135

130

130

130

130

130

128

126

126

126

130

130

128

130

121

T2T

123

126

130

126

130

128

138

133

135

135

138

138

140

-

3,909

130

7,750

Dec.

-

-

-

t!48

-

_

t!43

_

-

-

.

-

-

-

-

_

-

-

-

t!33

-

-

-

-

_

-

-

-

-

-

.

-

-

Calendar year : Max Min Mean Ao-ft

The season : Max - Mln - Mean - Ao-ft 47,100

t Result of discharge measurements.

a No gage-height record) discharge estimated on basis of comparative hydrogr-aph of Santa Ana River 

stations.
SANTA ANA RIVER BASIN

Cucamonga Creek near Upland, Calif.

Location. Lat 34°10'15", long. 117°37'55", in NEtr sec. 17, T. 1 N., R. 7 W., on right 

oamc 0.5 mile downstream from main tributary on right and 6 miles north of Upland.

Drainage area.--10.1 sq mi.

Kecoras available.--December 1928 to September 1951.

uage. water-stage recorder and broad-crested weir. Altitude of gage is 2,550 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, 1935, 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.--22 years (1929-51), 8.25 cfs; median of yearly mean discharges, 6.2

CIS . Extremes. Maximum discharge during year, 17 cfs Apr. 28 (gage height, 2.15 ft); minimum 

 SaHy, 0.6 cfs Aug. 17-21.

1928-51: Maximum discharge, 10.,300 cfs Mar. 2, 1938, based on rainfall-runoff

study; minimum daily, that of Aug. 17-21, 1951. 

Remarks. Records good except those for periods of no gage-height record, which are fair.

Discharge measurements generally made twice a month. No diversion above station. 

Revisions (water years). W 1041: 1944. Revised figures of discharge, in cubic feet per

second, ror a period in the water year 1950, superseding those published in WaterSupply Paper 1181, are given herewith:

Sept. 21. 

22.

1.7 

2.0 

1.8 

1.7 

1.6

Sept. 26. 1.5 

1.4 

1.4 

1.4 

1.4

Month

Water year 1949-50....

Cfs -days

1,091.5

Maximum

40

Minimum

1.0

Mean

2.99

Runoff in 

acre-ft

2,170

Rating table, water year 1950-51 (gage height, in feet, and discharge,

in cubic feet per second)

(Shifting-control method used Oct. 1-3, 18-22, Nov. 13 to 

Dec. 1, Jan. 11-13, Jan. 30 to Feb. 16, Mar. 11-22, 

Apr. 15-26, May 15-25, Sept. 28-30)

1.2 0.4

1.3 .8

1.4 1.4

1.5 2.1

1.7 4.1

1.9 7.2

Discharge, In cubic feet per second, water year October 1950 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.

1.4

1.4

1.4

1.4

1.3

1.4

1.4

1.2

1.2

1.2

1.2

1.2

1.1 TTi

1.2

1.2

1.2

1.3

1.3

1.2

1.3

1.4

1.4

1.3

1.4

1.5

1.6

TTS

1.5

1.4

1.5

41.2

1.33

82

Nov.

1.5

1.4

1.2

17?

1.3

1.4

1.4

1.4

1.4

1.4

1.3

1.4

2.5

TT5

2.2

2.1

2.0

2.1

2.1

2.2

2.1

2.0

2.0

2.0

2.0

2.0

1.9

1.9

1.9

1.9

53.5

1.78

106

Dec.

2.0

T7?

1.9

1.9

1.9

1.8

1.8

1.8

1.8

1.7

1.7

1.7

1.6

1.6

1.7

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

TT

1.4

1.4

r.s

50.8

1.64

101

Jan.

1.5 ia.

1.4

1.5

1.6

1.6

1.6

1.5

1.5

1.8

2.9

2.2

2.0

2.0

1.8

1.9

1.9

1.8

2.3

2.1

2.0

1.8

1.8

1.7

1.7

1.7

1.8

1.9

5.3

4T3

2.8

63.1

2.04

125

Feb.

2.2

2.1

2.0

2.0

2.0

2.0

1.9

1.8

TTS

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

2.1

2.0

2.0

2.1

2.5 275

_

.

-

56.4

2.01

112

Mar.

2.6

2.5

2.4

2.4

2.3

2.3

2.3

2.6

2.7 575"

2.5

2.4

2.4

2.4

2.3

2.3

2.3

2.1

2.0

2.0

2.0 2.01

2.0

2.0

1.9

2.0

2.0

2.0

2.0

2.1

2.1

69.5

2.24

138

Apr.

2.2

2.1

2.3

2.4

2.6

2.3

2.1

2.0

2.0

1.9

1.7

T7B- 1.6

1.6

1.6

1.6

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

2.7

2.3

2.0

4.1

6.9

TTff

-

66.7

2.22

132

May

3.0 zrs

2.3

2.1

2.0

2.0

2.0

2.0

1.8

1.7

2.0

1.9

2.0

2.3

2.0

2.0

2.0

1.9

1.8

1.8

1.8

1.8

1.7

1.6

1.6

T74- 1.4

1.4

1.4

1.4

1.5

58. '2

1.88

115

June

1.5

1.5

1.5

1.5

1.6

1.7

1.8

TTS

1.7

1.6

1.5

1.4

1.4

1.4

1.4

1.3

1.4

1.5

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

T7T

1.1

-

41.6

1.39

83

July

1.1

T7CT

1.0

1.0

.9

.9

.8

.8

.8

_._]_

'.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

.8

.8

.8

.7

24.6

0.79

49

Aug.

0.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.8

.7

.7

.7

.7

.675"

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.8

.9

1.0

21.9

0.71

43

Sept.

~7? 0.9

.9

.8

.8

.7

77

'.5

-

22.4

0.75

44

Calendar year 1950: Max 20 Mln i.o Mean 2.63 Ac-ft 1,890

Water year 1950-51: Max 6.9 Mln 0.6 Mean 1.56 Ac-ft 1,130

Peak discharge (base, 80 efa). Ho peak above base 

Note. No gage-nelght record Dec. 2-12, 19-28, July 11-15; discharge estimated on basis of weather 

records and records for Day Creek near Etiwanda and San Antonio Creek near Claremont.
SANTA ANA RIVER BASIN 75

San Jaclnto River near San Jacinto, Calif.

Location. Lat 33°44'05", long. 116°49'45", in SE£ sec. 13, T. 5 S. , R. 1 E. , 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 1951.

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. 28 years (1921-25, 1927-51), 20.8 cfs; median of yearly mean discnarges, o.u cfs.

Extremes. Maximum discharge during year, 44 cfs July 18 (gage height, 4.05 ft); no flow 

during most of year.

1920-51: Maximum discharge, 45,000 cfs, Feb. 16, 1927, on basis of slope-area 

determination of peak flow; no flow during several months of each year.

Remarks. Records good. Flow partly regulated by Hemet Reservoir (capacity, 13,400 acrert); no usable water in storage Sept. 30, 1951. Total annual diversions above station 

are as follows: Lake Hemet Water Co.'s upper canal, 1,260 acre-ft, Lake Hemet Water 

Co.'s lower canal, 107 acre-ft, Fairview Land & Water Co.'s pipe line, 1,090 acre-ft. 

For records of combined daily discharge of San Jacinto River and diversions see following page.

Cooperation. Daily discharge of Fairview Land & Water Co.'s pipe line furnished by Lake 

Hemet water Co.

Revisions (water years).--W 881: 1938.

Discharge, in cubic feet per second, water year October 1950 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

Ao-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

0

0

0

0

0

0

0

0

0

*1.6 TJ 

1.6

0.05

3.2

Feb.

(*)

(*)

_

-

0

0

0

Mar.

(*)

0

0

0

Apr.

0

73

0

0

0

0

0

0

0

0

0

0

0

0

0

0

**.3

0

0

0

0

0

0

0

0

0

0

0

2.7

14

17.0

0.57

34

Calendar year 1950: Max 210 Mln 0 Mean E.18

May

5.4 *75

0

0

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

0

0

6.2

0.20

12

June

( )

0

0

0

July

0

S

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

0

1.9

T?

0

0

0

0

0

0

0

0

.3

0

0

0

2.4

0.08

4.8

Aug.

(*)

0

0

0

Sept.

(*)

0

0

0

Ac-ft 1,580

Water year 1950-51: Max 14 Mln 0 Mean 0.07 Ac-ft 54

Peak discharge (base. 100 cfs). No peaks above base.

* Discharge measurement or observation of no flow made on this day.

** Field estimate made on this day.
76 SAHTA ANA RIVER BASIN

Combined discharge, in cubic feet per second, of San Jaclnto River and diversions 

near San Jacinto, Calif., water year October 1950 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.

1.1

1.0

.8

.9

.8

.8

.8

.6

.6

.7

.6

.5

75

.5

.6

.6

.6

.7

.7

.7

.8

1.0

1.0

1.1

1.4

1.4

1.5

T?5

1.5

1.4

1.5

28. 2

0.91

56

Nov.

1.6

1.5

1.4

1.1

1.2

1.4

1.4

1.4

1.5

1.4

1.2

1.4

1.5

"STO" 3.4

1.9

1.4

1.2

3.0

1.5

2.2

1.6

1.4

1.6

_._9

1.1

1.4

1.2

1.2

1.1

-

47.1

1.57

93

Dec.

1.2

T7Z

1.2

1.2

1.2

1.1

1.1

1.1

1.0

1.0

.9

.8

.4

75

.8

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

.9

.9

.9

28.4

0.92

56

Jan.

0.9

T75

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.4

1.7

1.4

1.4

1.2

1.2

1.2

1.2

1.5

2.4

1.7

1.6

1.9

2.0

2.0

1.9

1.9

1.9

4.3

12 ~5.9

61.6

1.99

122

Feb.

4.0

2.7

4.1

2.6

2.8

2.7

3.1

3.2

3.0

3.0

2.8

3.7

4.6

TTT

3.1

3.1

2.6

2.7

2.7

2.4

2.6

2.7

2.8

2.8

2.7

2.8

3.2

3.2

_

_

-

85.4

3.05

169

Calendar year 1950: Max 224 Mln 0.4

Mar.

3.9

4TI

4.0

4.1

4.5

6.3

5.5

6.1

6.2

6.4

6.6

8.9

7.5

8.4

9.0

8.4

8.2

7.2

5.4

5.4

5.1

5.3

5.1

4.8

4.8

4.6

4.5

4.4

4.1

4.0

4.1

176.9

5.71

351

Apr.

4.0

3.9

3.7

5.4

7.2

6.9

5.4

4.9

5.3

3.4

 375" 3.0

3.8

7.0

9.5

9.0

13

14

11

12

11

12

11

10

12

14

9.3

8.8

17

26

266.5

8.88

529

May

22

T5

17

19

18

13

12

10

13

14

14

13

13

16

15

12

7.4

6.6

5.8

5.4

5.1

4.9

4.6

4.4

4.7

3.5

3.3

3.0

2.8

2.5

276

303.6

9.79

602

June

3.9

T^

3.1

3.1

3.3

3.4

3.5

3.6

3.5

3.3

3.0

2.9

2.9

2.7

2.5

2.5

2.5

2.4

2.3

2.3

2.3

2.5

2.5

2.3

2.4

1.8

1.7

T7T

2.3

3.3

-

83.0

2.77

165

July

3.1

TT5

3.8

3.8

3.7

3.6

3.5

3.4

3.3

3.6

3.6

3.4

3.3

3.3

3.4

3.7

3.9

8.3

F7T

5.5

3.4

4.4

3.5

4.1

4.4

4.5

3.2

6.4

5.4

4.3

3.2

125.6

4.05

249

Aug.

3.4

3.8

377

3.7

3.6

3.5

3.5

3.5

3.4

3.4

3.3

3.3

3.0

3.0

3.0

3.0

2.9

3.0

2.9

2.9

2.9

2.9

2.8

2.9

2.9

2.6

2.6

3.1

3.5

2.2

1.9

96.1

3.10

191

Sept.

1.7

1.6

1.4

1.3

1.9

2.0

27T

1.9

1.8

1.7

1.4

1.4

1.1

1.0

.7

.?

0

7J

0

0

0

0

0

0

0

0

0

0

0

0

-

23.1

0.77

46

Mean 8.25 Ac-ft 5,970

Water year 1950-51: Max 26 Mln 0 Mean 3.63 Ac-ft 2,630
SANTA ANA RIVER BASIN 77

Bautista Creek near Hemet, Calif.

Location. Lat 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 1951.

Gage. Water-stage recorder. Altitude of gage is 2,250 ft (from topographic map).

Extremes. Maximum discharge during year, 22 cfs July 28 (gage height, 2.92 ft); no flow 

during most of year.

1947-51: Maximum discharge, that of July 28, 1951; no flow during most of each year.

Remarks.--Records poor. One diversion above station for irrigation of about 15 acres.

Discharge, In cubic feet per second, water year October 195O 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

Tota:

Mean

Ac- ft

Oct.

(*)

0

0

o

Nov.

(*)

-

0

0

0

Dec.

o

0

0

Jan.

0

0

0

o

0

o

0

0

0

0

0

0

0

0

*0

0

o

0

0

o

0

o

0

o

0

0

o

0

1.2

o

1.4

0.05

2.8

Feb.

0

0

o

Mar.

(*)

0

0

0

Apr.

o

0

0

o

o

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

o

o

0

o

0

0

0

i£

-

0.6

0.02

1.2

Calendar year 1950: Max 0 Mln 0 Mean 0

May

(*)

0

0

0

June

(*)

-

0

0

0

July

0

o

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

0

0

o

0

0

0

0

0

0

0

1.1

o

0

o

1.1

0.04

2.2

Aug.

(*)

0

0

0

Sept.

(*)

-

0

0

0

Ac-ft 0

Water year 1950-51 : Max 1.2 Mln O Mean O.O1 Ac-ft 6.2

Discharge measurement made on this day.
"8 SANTA ANA RIVER BASIN

San Jacinto River near Elsinore, Calif.

Location.--Lat 33°39'45", long. 117°17'4S", near east line of sec. 9, T. 6 S., R. 4 W., on 

rignt bank 2 miles east of Elsinore and 2.2 miles upstream from Lake Elsinore (low-water 

stage).

Drainage area. 717 sq mi.

Hecoras available.--January'1916 to September 1951.

uage. water-stage recorder. Altitude of gage is 1,270 ft (from topographic map). Prior 

Eo Feb. 13, 1916, staff gage at site 0.75 mile downstream at different datum. Feb. 13, 

1916, to Oct. 27, 1921, staff gage at same site at different datum.

Average discharge. 24 years (1927-51), 12.5 cfs; median of yearly mean discharges, 0.2 

crs (since construction of Railroad Canyon Reservoir).

Extremes. Wo flow during year.

1516-51: 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. Wo flow since Jan. 17, 1950. Observations of no flow generally made once a mont'i. 

Storage and diversion above station for irrigation. Regulation since 1928 by Railroad 

Canyon Reservoir (capacity, 12,000 acre-ft) 2 miles above station. The following are 

the summary figures for the calendar year 1950: total cfs-days, 0.3; maximum daily discharge, 0.2 cfs; minimum daily, 0; mean, 0.001 cfs; runoff in acre-ft, 0.6.

Elsinore Lake at Elsinore, Calif.

Location. Lat 33°40'35", long. 1170 22'05", in La Laguna Grant, on northwest shore at 

Elsinore, Riverside County. Prior to Feb. 13, 1951, at site three-quarters of a mile 

east.

Records available. December 1915 to September 1951.

Gage.--Staff gage read once a month. Datum of gage Is 1,230.0 ft above mean sea level. 

Gage 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 daturas.

Extremes.--Maximum elevation observed during year, 1,226.5 ft Oct. 9; minimum observed, 

 1,224.2 ft Aug. 28 (lake dry).

1915-51: 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; minimum observed, that of Aug. 28, 1951.

Remarks.--Elsinore Lake overflows into Temescal Creek, which is its outlet, only during 

anfl after years of unusually heavy rainfall. There has been no outflow since June 30, 

1917. History of the lake prior to 1916 is published in Water-Supply Paper 441. A 

summary of high stages that have occurred from 1916 to 1942 is contained in WaterSupply Paper 961.

Elevation, in feet, water year October 1950 'to September 1951

Oct. 9.....1,226.5 Feb. 13.....1,225.8 June 18..... 1,224.5 

Nov. 1.....1,226.2 Mar. 19.....1,225.7 July 10..... 1,224.4 

27.....1,226.1 Apr. 17.....1,225.4 Aug. 1..... 1,224.3 

Dec. 28.....1,226.0 May 15 ..... 1,225.1 28..... 1,224.2 (Lake

dry)

Temescal Creek near Corona, Calif.

Location.--Lat 33°50 I 30", long. 117°30'45", in El Sobrante de San Jacinto Grant, on left 

Dank 0.5 mile upstream from Blue Diamond Quarry and 4 miles southeast of Corona, Riverside County.

Records available.--January 1929 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 730 ft (from topographic map).

Average discharge. 22 years, 4.70 cfs; median of yearly mean discharges, 0.3 cfs.

Extremes.--Maximum discharge during year, 2.2 cfs May 14 (gage height, 3.93 ft); no flow 

during most of year.

1929-51: Maximum discharge, 14,900 cfs Mar. 2, 1938, result of slope-area determination of peak flow; no flow during parts of most years.

Remarks.--Records poor. The only flow during the 1951 water year occurred on May 14. 

The mean discharge for that day is 0.1 cfs. The mean discharge for the month of May 

is 0.003 cfs; that for the water year is 0.0003 cfs, and that for the calendar year 

1950 is 0.002 cfs. Runoff for the month of May and that for the water year is 0.2 

acre-ft, and that for the calendar year 1950 is 1.6 acre-ft. Many diversions above 

station. Flow regulated by Lake Elsinore and several storage reservoirs above station. 

Mo water wasted from Lake Mathews during year.
SANTA ANA RIVER BASIN 

San Antonio Creek near Claremont, Calif.

79

Location. Lat 34°12'50", long. 117°40'00", In NW^SEi sec. 36, T. 2 N., R. 8 W., on right 

canK 0.5 mile upstream from Southern California Edison Co.'s Sierra power plant and 

8 miles northeast of Claremont.

Drainage area. 16.9 sq mi.

Records available. March 1901 to September 1951. 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 power 

plant tailrace half a mile downstream at different datum; flow in natural channel estimated. Jan. 25, 1917, to Jan. 11, 1939, at site 50 ft downstream at different datum.

Average discharge.--34 years (1917-51), 10.2 cfs; median of yearly mean discharges, 4.2 

cTs~. Average combined discharge of creek and conduit, 34 years (1917-51), 22.7 cfs; 

median of combined yearly mean discharges, 18 cfs.

Extremes.--Maximum discharge during year, 3.9 cfs Apr. 28 (gage height, 1.00 ft); practi-

 cany no flow Aug. 24-27, 31, Sept. 1.

1917-51: Maximum discharge, 21,400 cfs Mar. 2, 1938, by slope-area and rainfallrunoff studies; practically no flow Aug. 24-27, 31, Sept. 1, 1951.

Remarks. Records good. Discharge measurements generally made three 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-one discharge measurements furnished by Los Angeles County Flood Controi District, through H. E. Hedger, chief engineer.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.6 

.7

0 

.2

1.0

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

21

22

23

24

£5

26

£7

28

29

30 

31

Total

Mean

Ac-ft

Oct.

0.2 ~75

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.T

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

6.0

0.19

12

Nov.

0.2 T£'.Z

.2

.2

.2

.2

.2

.2

.2

.3

.4

.1

.2

.4

.3

.3

.2

.2

.2

.2

.£

.3

.3

.3

.3

.3

.3

.3

.3

-

7.7

0.26

15

Dec.

0.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.2."5

.2

.2

.2

.3

10.3

0.33

20

Jan.

0.3

.2

.3

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

1.0 -79

.9

16.4

0.53

33

Feb.

0.9 "75

.7

.6

.6

.6

.6

.'

.5

.6

.6

_

_

-

14.0

0.50

28

Mar.

0.6

.6

.5

.5

.6

.6

a. 6

.6

.7

.7

.7

.6

.6

.6

.5

.5

a. 5

a.

a.

a.

a.

a.

a.

a.

a.

a.

a.

15.7

0.51

31

Apr.

0.4

.5

.4

.4

.4

.4

.6

.5

.5

.4

.4

.4

.4

.3

.1

.4

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.8

.9

.?

-

13.0

0.43

26

May

0.9 -77

.6

.6

.5

.6

.6

.6

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.2

.2

.2

.2

.2

.2

.2

.1

.1

.2

12.0

0.39

24

June

0.2 ~72

.2

.2

.2

.2

.2

.2

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.2

.2

.2

.2

.2

.2

-

6.6

0.22

13

July

0.2 -~3

.2

.2

.2

.2

.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

3.7

0.12

7.3

Aug.

~TT 0.1

.1

.1

.1

.1

.1

.1

o'

V

0

0

.1.1

.1

0

2.6

0.08

5.2

Sept.

~.l 0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

a

.1.1.1

.1.1.1.1.1

-

2.9

0.10

5.8

Calendar year 1950: Max 3.2 Min 0.1 Mean 0.47 Ac-ft 342

Water year 1950-51 : Max 1.0 Min 0 Mean 0.30 Ac-ft 220

charge ( 

e-height

base, 10 cfs). No peak above base.

a No gage^-height record; discharge estimated on basis of recorded range in stage, weather records, 

and records for Cucamonga Creek near Upland and Lytle Creek near Fontana.
SANTA ANA RIVER BASIN

Combined discharge, In cubic feet per second, of San Antonio Creek and Southern California 

Edison Co.'s conduit near Claremont, Calif., water year October 1950 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.

5.2

57Z

5.2

4.9

.9

.9

.9 

.9

.9

.9

.8

.8

.9

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

149.2

4.81

296

Nov.

4.7

177

4.7

4.7

4.7

4.7

4.7

4.7

4.8

4.9

5.6

T77

4.9

4.8

4.8

4.7

4.7

4.7

4.7

4.7

4.8

4.8

4.8

4.8

4.8

4.8

4.8

4.8

-

143.4

4.78

284

Dec.

4.8

TT5

.8

.8

.7

.6

.6

.6

.6

.5 ~75

.5

.5

.5

.6

144.6

4.66

287

Jan.

4.6

4.5

475

4.7

4.7

4.7

4.7

4.7

4.8

4.8

5.1

5.1

5.1

5.1

5.1

5.1

5.2

5.2

5.6

5.6

5.6

5.6

5.2

5.2

5.2

5.2

7.4 575"

5.9

159.6

5.15

317

Feb.

5.9 575

5.7

5.6

5.7

5.7

5.4

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.2

5.3

5.3

5.3

5.3

5.4

5.4

_

_

-

150.4

5.37

298

Mar.

5.4

5.4

5.3

373

5.6

5.6

5.6

5.7

6.1

5.7

5.6

5.6

5.6

5.5

5.5

5.5

5.5

5.5

5.4

5.4

5.4

5.4

5.4

5.3

5.4

5.4

5.4

5.4

5.4

5.4

170.3

5.49

338

Apr,

5.4

5.5

5.4

5.6

5.6

5.8

5.5

5.4

5.4

5.4

5.4

il

5.4

5.4

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.4

5.4

5.4

5.8

6.6

S7S

-

165.2

5.51

328

May

6.3

57T

6.1

5.8

5.6

5.6

5.6

5.8

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.5

5.2

5.2

5.2

5.2

5.2

4.8

4.8

4.7

T77

4.B

170.1

5.49

337

June

.8

.8

.8

.8

.8

.8

.9

4T5

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

.9

.7

.6

.6

.6

.6

.6

.6

-

143.2

4.77

284

July

4.4

T75

4.4

4.4

4.4

4.3

4.3

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

3.7

TT7

3.7

3.7

3.7

3.7

3.7

3.7

126.3

4.07

251

Aug.

3.7

577

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.6

375

3.6

3.6

3.7

3.7

3.7

3.6

114.2

3.68

227

Sept.

3.6

3.7

377

3.7

3.

3. 

3.

3.

3.

3.

3.

3.5

373

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

3.5

3.5

-

107.3

3.58

213

Calendar year 1950: Max 16 Mln 4.5 Mean 8.06 Ao-ft 5,840

Water year 1950-51 : Max 7.4 Mln 3.5 Mean 4.78 Ao-ft 3,460
SANTA ANA RIVER BASIN 81

Santa Ana River below Prado Dam, Calif. 

(Formerly published as Santa Ana River below Prado Dam, near Prado, Calif.)

Location. Lat 3a°53'00", long. 117°38'30", in La Sierra Grant, on left bank of outlet 

cnannel, 2,500 ft (revised) downstream from axis of Prado Dam, 0.6 mile downstream from 

Chino Creek, and 4 miles west of Corona, Riverside County.

Records available --May 1930 to November 1939 (irrigation season only), March 1940 to Septemoer ist>i. 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 

a"bove mean sea level (Corps of Engineers Survey). Prior to Mar. 18, 1940, water-stage 

recorders at about same site at various datums.

Extremes. Maximum daily discharge during yeaiv, 170 cfs Apr. 30; minimum daily, 35 cfs 

 Sept. 6, 7.

1940-51: Maximum discharge, 2,260 cfs Dec. 24, 1940 (gage height, 3.20 ft); minimum 

daily, 35 cfs Aug. 18, Sept. 1, 1948, Sept. 6,7, 1951.

Remarks. Records good. Discharge measurements generally made once a week. Plow regulated 

EyTrado Reservoir (capacity, 222,800 acre-ft) and Bear Lake (capacity, 72,000 acre-ft). 

Plow past station during part of year includes Colorado River water released to Santa 

Ana River (see Santa Ana River at Riverside Narrows). Natural flow of stream affected 

by extensive ground-water withdrawals and diversions for irrigation and return flow from 

irrigated areas.

Cooperation. Fifty-one discharge measurements furnished by Orange County Plood Control 

District, through J. A. Bradley, flood-control engineer.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.9

2.0

2.2 

2.4 

2.6

108

152

203

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

74 TO"

70

67

67

65

65

65

60

52

49

51

49

48

48

51

48

45

~a44

46

46

49

52

51

52

51

51

51

54

56

1,691

54.5

3,350

Nov.

56

51

 4? 49

51

59

56

59

59

57

57

62

94

9T

74

67

68

78

82

92

84

82

78

78

77

74

72

77

77

77

2,090

69.7

4,150

Dec.

74

68

64

S4

70

68

68

68

67

75

74

74

70

70

74

82

75

75

74

77

70

70

67

67

75

70

70

80

82

77

75

2,237

72.2

4,440

Jan.

75

77

75

70

67

65 55

70

74

78

84

94

80

75

75

82

84

82

82

84

82

84

84

84

84

88

92

92

114

143

TOS

2,594

83.7

5,150

Feb.

102

TOT

96

94

92

92

86

84

80

80

80

82

86

78

W

80

82

82

82

78

78

80

82

82

82

84

102

94

_

-

2,400

85.7

4,760

Mar.

104

114

96

96

92

90

88

90

92

92

90

82

S5

84

84

84

86

121

127

129

129

129

129

127

129

129

127

131

140

T30

138

3,373

109

6,690

Apr.

134

134

140

152

136

136

131

134

134

138

136

131

127

125

121

118 T2"9~

143

147

145

138

136

134

134

140

154

140

147

164

170

4,148

138

8., 230

May

145

I3ff

138

136

138

138

138

138

136

138

138

136

134

140

140

136

136

134

131

127

127

127

125

123

121

123

121

118

116

116

110

4,062

131

8,060

June

110

110

108

106

TGS

106

110

112

112

112

110

108

106

106

110

110

110

112

110

108

108

110

121

127

TzT

127

125

125

121

123

3,396

113

6,740

July

127

T2T

125

123

118

112

TT2

112

114

116

116

116

116

116

114

116

114

116

118

118

116

116

116

118

118

116

114

114

116

118

116

3,624

117

7,190

Aug.

116

118

116

116

116

114

114

114

116

118

121

1ST

121

114

116

118

116

110

110

alOB

108

112

110

108

110

106

106

77

49

46

45

3,290

106

6,530

Sept.

44

40

39

39

38

35

3T

38

37

38

39

37

48

106

112

116

116

118

112

112

112

116

123

127

151

129

127

129

125

127

-

2,545

84.8

5,050

Calendar year 1950: Max 341 Mln 44 Mean 93.1 Ao-ft 67,380

Water year 1950-51: Max 17O Min 35 Mean 97.1 Ac-ft 70,340

a No gage-height record; discharge estimated on basis of comparative hydrograph of Santa Ana River 

stations.
82 SANTA ANA RIVER BASIN

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

(Formerly published as Santa Ana River near Prado)

Location. Lat 33°52'05", long. 117°40 1 20", on right bank, 300 ft southeast of the common 

corner of Orange, Riverside, and San Bernardino Counties, 1 mile downstream from Aliso 

Creek, 3 miles downstream from Prado Dam, and 6 miles west of Corona, Riverside County.

Records available.--January 1919 to November 1942, May 1945 to December 1951 (irrigation 

seasons only since October 1950). Prior to October 1950, published as "near Prado."

Gage. Water-stage recorder. Datum of gage, 407.34 ft above mean sea level, unadjusted. 

Trior to May 1945, on left bank 700 ft south of common corner of Orange, Riverside, anc? 

San Bernardino Counties at datum 2.39 ft higher. May 1, 1945, to May 30, 1946, at datum 1.00 ft higher.

Extremes. Maximum discharge, 100,000 cfs (estimated) Mar. 2, 1938 (gage height, 17.3 ft, 

site and datum then in use, from floodmarks in gage well); minimum. 25 cfs, Aug. 18, 

1929, Aug. 24, 1936.

Remarks.--Records good. Discharge measurements generally made once a week. Flow regulaEecTby Prado Reservoir (capacity, 222,800 acre-ft) and Bear Lake (capacity, 72,000 

acre-ft). The 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 Narrows).

Cooperation.--Fifty-six discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Revisions (water years).--W 881: 1938.

Rating table. May to November 1951 (gage height. In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used May 25 to June 9, June 21-27)

2.0 

2.2 

2.4 

2.7 

3.1

62

97

154

Discharge, in cubic feet per second, January to December 1951

Day

1

2

3

4

c

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Z2

Z3

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Jan.

_

-

tee

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

.

_

-

_

-

t79

-

-

-

t!51

-

_

-

~

Feb.

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

.

_

T91

_

-

_

T110

_

-

-

-

_

-

~

Mar.

_

-

-

-

-

_

-

-

-

-

.

-

_

-

-

_

-

-

_

-

T131

.

-

_

-

_

_

_

_

t!3B

-

_

-

~

Apr.

.

-

-

-

-

_

_

-

-

-

.

-

_

-

-

.

t!41

-

_

-

_

_

_

_

tl!3

_

T151

^ _

_

_

-

_

_

~

May

150 TIB146

144

143

142

140

137

136

13S

140

138

136

146

140

136

134

134

130

130

128

126

126

126

126

124

124

124

124

124

122

4,162

134

8,260

June

121

119

119

118

118

121

122

124

121

118

115

114

115

112

110

108

108

111

108

106

112

119

131

136

T3TT

132

131

130

126

130

-

3,591

120

7,120

July

128

T5S

126

126

124

124

119

115

114

114

117

119

118

118

117

114

TT7

119

121

119

118

118

115

115

117

117

118

118

118

115

115

3,681

119

7,300

Aug.

114

114

112

HZ

112

110

110

110

111

115

121

122

T2T

118

119

118

112

110

111

111

107

108

111

110

110

112

111

80

a68

52

48

3,301

106

6,550

Sept.

45

44

42

42

40

36

35

3E

38

39

39

38

43

1O2

111

115

115

117

114

114

118

122

126

124

128

13O

132

T3T

128

126

-

2,570

85.7

5.10O

Oct.

128

126

126

126

124

121

T2T

122

122

124

124

128

130

130

130

13O

130

131

130

130

130

130

130

128

140

140

138

136

136

140

144

4,O25

130

7,980

Nov.

143

138

136

137

138

137

137

138

138

138

140

142

142

142

142

138

132

T3T

138

142

144

144

146

154 T35-

149

149

149

149

149

-

4,257

142

8,440

Dec.

_

-

-

t!59

-

_

t!75

-

_

-

_

-

.

-

-

_

.

-

_

-

t!75

_

_

_

-

_

_

_

.

_

T728

.

-

-

Calendar year 1951 : Max - Min - Mean - Ac-ft 50,750

Water year : Max Min Mean Ac-ft

t Result of discharge measurement.

a No gage-height record; discharge estimated on basis of comparative hydrograph for other Santa Ana 

River stations.
SANTA ANA RIVER BASIN 83

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

Location.--Lat 33°47'10", long. 117°43'35", in Lomas de Santiago Grant, on upstream face 

near right side of Santiago Dam, 1.5 miles east of Irvine Park and 5 miles east of Villa 

Park, Orange County.

Drainage area.--63 sq mi, approximately.

Records available.--October 1931 to September 1951.

Gage.--Staff gage read on last day of each month. Datum of gage is mean sea level.

Average runoff. 20 years, 13,750 acre-ft per year (19.0 cfs); median of yearly runoff, 

v.buu acre-ft (10 cfs).

Remarks.--Records of runoff represent all water reaching Santiago Reservoir, including

rainfall on the reservoir, computed on basis of records of storage, draft, spill, waste, 

leakage, and evaporation. This earth-fill 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. Evaporation is computed 

from records from a standard United States Weather Bureau station at crest of dam. 

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 Ranch.

Revisions (water years). W 1121: 1932-36, 1938 (flood data).

Monthly runoff, October 1950 to September 1951

Month

Calendar year 1950...

Water year 195O-51 . . .

Santiago Reservoir

Gage height 

(feet)t

725.3 

723.1 

722.5 

722.8

722.5 

722.5 

721.2 

720.5 

719.1 

717.1 

714.8 

711.5 

710.2

-

Contents 

(acrefeet).t

2,240 

1,972 

,902 

,937

-

,9O2 

,902 

,757 

,682 

,540 

,344 

,132 

835 

718

-

Change 

In 

contents 

(acrefeet)

-268 

-70 

+35

-83

-35 

O

-145 

-75 

-142 

-196 

-212 

-297 

-117

-1,522

Draft 

(acrefeet)

373 

149 

22

3,270

101 

42 

159 

152 

200 

236 

255 

302 

191

2,182

Evaporation 

(acrefeet)

53 

43 

28

690

20 

27 

44 

32 

47 

47 

54 

39 

30

464

Spill, 

waste & 

leakage 

(acrefeet)

0 

0 

0

0

O 

0 

0 

0 

0 

0 

0 

0

o

0

Runoff 

(acre-feet)

158 

122 

85

3,877

86 

69 

58 

109 

105 

87 

97 

44 

104

1,124

t At 5 p.m. on last day of month.
84 SANTA AHA RIVER BASIN

Santiago Creek near Villa Park, Calif.

Location Lat 33°49'10", long. 117°46'30", in SW^ sec. 13, T. 4 S., R. 9 W., on right 

bank U.6 mile downstream from diversion dam of Serrano and Carpenter Irrigation 

Districts and 1.8 miles northeast of Villa Park.

Drainage area.--83.8 sq mi.

Records available. June 1920 to September 1951.

Gage. Water-stage recorder and concrete cut-off wall control. Altitude of gage is 420 

Ft (from topographic map).

Average discharge. 31 years, 8.11 cfs; median of yearly mean discharges, 0.6 cfs.

Extremes. Maximum discharge during year, 139 cfs Nov. 13 (gage height, 2.90 ft); no flow 

during several months.

1920-51: 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; 

no flow for several months during each year.

Remarks.--Records fair except those for period of no gage-height record, which are poor. 

Flow regulated by Santiago Reservoir (see preceding page). Diversions above station 

by Irvine Co. and Serrano and Carpenter Irrigation Districts,

Cooperation.--Eight discharge measurements furnished by Orange County Flood Control 

District, through J. A. Bradley, flood-control engineer.

Discharge, in cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

5

0

0

0

0

0

0

0

0

0

0

~7S 8.5

.2

*.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

0

0

0

0

0

10.9

0.36

22

Dec.

0

C

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

.T

0.2

O.OO6

0.4

Jan.

0.1

.1

0

C

0

0

.1

.1 *.l

*.l

*1.1

a. 5

a. 3

a. 2

a.l

*.l

.1

*.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

*4.6

*.l

.1

9.0

0.29

18

Feb.

0

C

0

0

*.I

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1 *.l

.1

_-

0.5

0.02

1.0

Mar.

*1.1 ~X

.4

.2

.1

*.l

.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

3.1

0.10

6.1

Apr.

0

T3

0

0

.2

.2

.2

.2

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

.2

.2

0

-

1.5

0.05

3.0

May

0

5

o

0

0

0

0

0

0

0

0

0

0

*1.8 0~

o

0

0

0

0

0

0

0

0

0

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 1950: Max 116 Min o Mean 0.69 Ac-ft 500

Water year 1950-51: Max 8.5 Min 0 Mean o.07 Ac-ft 54

* Discharge measurement made on this day.

a Ho gage-height record; discharge estimated on basis of weather records and records for station at 

Santa Ana.
SANTA ANA RIVEH BASIN 85

Santiago Creek at Santa Ana, Calif.

Location. Lat 33C 46 I 10", long. 117°52'55 M , in Santiago de Santa Ana Grant, on left bank 

at end of Baker Street, Santa Ana, Orange County, 2,000 ft upstream from mouth."

Records available. January 1929 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 120 ft (from topographic map). Prior 

 Co June 22, 1948, at datum 0.96 ft higher.

Average discharge. 22 years, 6.20 cfs; median of yearly mean discharges, 0.8 cfs.

Extremes.--Maximum discharge during year, 237 cfs Nov. 13 (gage height, 3.94 ft); no flow 

during most of year.

1929-51: 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; no flow 

during most of each year.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Flow regulated by Santiago Reservoir (see p. 83 ). 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. Four discharge measurements furnished by Orange County Flood Control District, through J. A. Bradley, flood-control engineer.

Rating table, water year 1950-51 (gage height, In 

feet, and discharge, in cubic feet per second)

1.95

2.0

2.1

2.2

.2

1.4 

3.4

2.3

2.4

2.5

Discharge, in cubic feet per second, water year October 195O 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.

0

0

o

Nov.

0

3

o

0

0

o

0

0

0

0

0

0

~C12

0

0

0

0

.3

0

o

.2

4.4

5.0

a2

aO

ao

aO

ao

O

-

23.9

0.80

47

Dec.

O

0

0

Jan.

0

(3

0

0

0

0

0

O

0

*.6

*1.4

0

o

0

0

*.6

0

0

o

0

0

0

*1.0

.7

*3.1

0

o

0

*3.6 TJ 

0

11.0

0.35

22

Feb.

0~~.2

O

0

0

.4

1.0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

0

0

~7l 1.6

0

_

-

3.7

0.13

7.3

Mar.

*3.0

0

T3~ 4.9

0

o

0

0

0

0

o

0

0

0

0

0

0

0

o

0

0

0

0

o

0

0

0

0

0

0

0

7.9

0.25

16

Apr.

0

0

0

Calendar year 195O: Max 140 Min 0 Mean 0.77

May

0

o

0

June

0

0

o

July

0

O

0

Aug.

0

o

0

Sept.

o

0

0

Ac-ft 560

Water year 1950-51: Max 12 Min 0 Mean 0.13 Ac-ft 92

Peak discharge (base, 120 cfs).--Nov. 13 (4:3O p.m.) 237 cfs (3.94 ft). 

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage, weather records 

and records for station near Villa Park and Santa Ana River at Santa Ana.

2S6498 O - 53 - 7
86 SANTA ANA RIVER BASIN

Santa Ana River at Santa Ana, Calif.

Location. Lat 33°45'00", long. 117°54'30" (revised), In Las Bolsas Grant, on right pier 

or Fifth Street Bridge in Santa Ana, Orange County, 2 miles downstream from Santiago 

Creek.

Records available . January 1923 to September 1951.

Gage Water-stage recorder. Altitude of gage is 80 ft (from topographic map). Jan. 25, 

T929, to June 20, 1948, at site 450 ft upstream at different datum.

Average discharge . 28 years, 22.9 cfs; median of yearly mean discharges, 3.0 cfs.

Extremes. Maximum discharge during year, 80 cfs Nov. 13 (gage height, 3.32 ft); no flow 

during most of year.

1923-51: 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 during 

several months each year.

Remarks. Records good. During irrigation season, canal of Anaheim Union Water Co. and 

canal of Santa Ana Valley Irrigation Co. divert entire flow of river at points near 

Atwood, 19 and 16 miles, respectively, above station. Regulation by Prado flood-control 

dam 23 miles above station (capacity, 222,800 acre-ft). At times there are small 

amounts of return irrigation water from Santa Ana Valley Irrigation Co.'s drain 1,500 ft 

upstream,

Cooperation. Five discharge measurements furnished by Orange County Flood Control District, tnrough J. A. Bradley, flood-control engineer.

Discharge, In cubic feet per second, water year October 1950 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

2S

29

30

31

Total

Mean

Ac-ft

Oct.

~.l 0

.1

0

.1

0

0

.1

0

.1

0

.1

.1

0

.1

.3

0

.1.1

.2

.1

0

0

.1

.1

0

0

0

.3

.3

0

2.4

0.08

4.8

NOV.

0

U

0

0

0

0

0

0

0

0

0

0

*7&- 8.5

0

0

0

0

*1.5

.2

0

0

0

4.0

3.7

.1

0

0

0

0

-

18.8

0.63

37

Dec.

0

u

0

0

0

0

0

0

0

0

0

0

0

**o

0

.1

.2

.2

*.l

.2

.3

.4

7t

.3

.1

0

0

0

0

0

0

2.3

0.07

4.6

Jan.

0

3

0

.1

0

0

0

.2 **o

*0

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.8

o'

0

2.4

0.08

4.8

Feb.

0

TV

0

0

*.l

.2

.5

.2

.2

.1

.4

.4

.6

TT

.1

.2

.1

0

0*.l

.1.1

*.3

.6

.2

.5

.6

.6

_

_

-

6.3

0.22

12

Mar.

*1.4 ir~

IS

.3

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

c

0

0

0

0

0

0

0

0

1.8

0.06

3.6

Apr.

0

tf

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

.1

.1

0

0

0

0

0-

0.3

0.01

0.6

May

*0.5

.5

.4

.6

.4

.4

.2

1.1

170- 1.2

.8.1

.2

.2

.1

0

0

.1

0

0

0

0

0

0

0

0

*0

.1

0

0

.1

8.0

0.26

16

June

(*)

0

0

0

July

0

3

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

0.1

0.003

0.2

Aug.

0

0

0

Sept.

-.1 0

71

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

Calendar year 1950: Max 101 Mln 0 Mean 0.67 Ao-ft 485

Water year 1950-51: Max 8.5 Mln 0 Mean 0.12 Ao-ft 84

Peak discharge (base, 150 cfs). No peak above base.

* Discharge measurement made on this day.

** Field estimate made on this day.
SAN GABRIEL RIVER BASIN 87

East Pork San Gabriel River near Camp Bonita, Calif.

Location. La t 34°14'12", long. m^S'SO", in SE£ sec. 22, T. 2 N., R. 9 W., on right 

oanK 1,000 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 1951.

Gage. Water-stage recorder. Datum of gage is 1,567.04 ft above mean sea level (levels by 

Los Angeles County Flood Control District). Prior to Dec. 10, 1938, at site 0.6 mile 

downstream at different datum.

Average discharge.--18 years (1933-51), 77.1 cfs; median of yearly mean discharges, 57 cfs.

Extremes. Maximum discharge during year, 39 cfs Apr. 28 (gage height, 6.84 ft); minimum 

 daily, 1.7 cfs Sept. 23, 24.

1932-51: 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.

Remarks. No diversion above station.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 0

"1

-.2

"3

:-f

75

"6

,;? '"8

:<:9

,^0 »1

'" rtal

r«an

j'--ft

Oct.

7.0

6.7

6.5

6.5

6.5

6.7

6.5

6.5

6.5

6.5

6.3

S7Q- 6.0

6.5

6.7

6.7

6.7

6.7

6.7

6.7

6.5

6.3

6.0

6.3

6.5

6.7

7.4

77?

7.2

7.2

7.2

205.4

6.63

407

Nov.

7.0

6.3 57S6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.7

6.7

9.4

13

TT

11

11

10

10

10

9.8

9.6

9.6

9.6

9.6

9.8

10

9.8

9.8

9.8

261.5

8.72

519

Dec.

9.8

9.8

9.8

9.8

9.6

373" 9.3

9.3

9.6

9.6

9.6

9.6

9.8

9.8

9.8

10

HT

10

10

10

10

10

10

10

10

10

10

10

10

10

10

304.5

9.82

604

Jan.

10

Iff

10

10

10

10

10

10

10

11

13

13

12

12

11

12

12

12

12

12

11

11

11

11

11

11

11

11

18IB"

14

358

11.5

710

Feb.

14

TT

13

12

12

12

12

12

12

12

12

12

12

11

TT

11

11

11

11

11

11

11

12

12

12

12

14

14

_

_

-

335

12.0

664

Mar.

16T5~

14

14

14

14

14

14

14

14

14

13

13

13

13

14

14

14

14

14

13

13

13

12

12

12

12

11

IT

11

11

410

13.2

813

Apr.

11

11

11

12

13

12

12

11

11

11

11

11

10Toil

11

10

10

1111

10

10

10

10

13

12

11

15

22TB-

-

352

11.7

698

May

16

IF

16

16

16

15

15

15

14

14

13

13

13

14

13

12

12

12

12

11

11

11

11

11

10

10

9.8

9.8

9.6 576"

10

390.8

12.6

775

June

9.8 573"

9.0

9.0

9.3

9.8

9.8

9.8

9.3

8.4

8.1

7.9

7.4

7.2

7.0

6.7

6.7

6.5

6.5

6.5

6.7

6.5

6.0

5.8

5.8

5.6

5.1

4.7

4.7

4.5

-

219.4

7.31

435

July

4.5 4-^-

4.5

4.5

4.5

4.2

3.7

3.5

3.5

3.7

3.9

4.0

3.9

3.5

3.1

3.0

3.2

3.2

3.4

3.4

3.4

3.5

3.4

3.2

3.1

3.1

3.1

3.0

3.0

2.8 275"

110.1

3.55

218

Aug.

2.8

2.8

2.8

2.8

2.7

2.6

2.5

2.5

2.7

2.7

2.7

2.7

2.7

2.7

2.6

2.5

2.5

2.5

2.5

2.4

2.4

2.4

2.4

2.5

2.5

2.4

2.3

Z7F

3.0

3.1

5.2

81.4

2.63

161

Sept.

3.2

37T

3.1

3.1

3.0

2.8

2.7

2.7

2.6

2.5

2.6

2.4

2.2

2.1

2.1

2.1

2.3

2.1

1.9

2.1

2.0

1.9

1.7

T7T

1.8

1.8

1.9

2.0

2.2

2.2

-

69.9

2.33

139

Calendar year 1950: Max 168 Mln 5.4 Mean 19.5 Au-ft 14,090

1 ?ter year 1950-51: Max 22 Mln 1.7 Mean 8.49 Ac-ft 6,140
88 SAN GABRIEL RIVER BASIN

West Fork San Gabriel River at Camp Rincon, Calif.

Location. Lat 34°14'30", long. 117°51'50", near center of sec. 19, T. 2 N., R. 9 W. , on 

ngnt bank 0.2 mile upstream from Camp Rincon, 0.5 mile downstream from North Fork, and 

6 miles downstream from San Gabriel dam No. 2.

Drainage area. 102 sq mi.

Records available .--October 1927 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,474.94 ft above mean sea level (levels by

 Eos Angeles County Flood Control District). Prior to Nov. 19, 1930, at site If miles 

downstream at different datum.

Average discharge .--24 years, 69.4 cfs; median of yearly mean discharges, 37 cfs.

Extremes . --Maximum discharge during year, 28 cfs Apr. 29 (gage height, 7.35 ft); minimum,

 O.B cfs Aug. 26.

1927-51: Maximum discharge, 34,000 cfs (estimated) Mar. 2, 1938; no flow at times 

in 1928, 1929.

Remarks. --No diversion above station. Flow regulated by San Gabriel flood-control reser-

 voir No. 2 {capacity, 10,630 acre-ft).

Cooperation. --Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in cubic feet per second, water year October 1950 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.

7.6 773"

6.6

6.0

6.0

5.8

5.5

5.2

5.0

3.8

3.0

2.9

2.6 276-

2.6

2.8

2.8

2.9

2.9

2.9

2.9

3.0

3.0

3.0

3.0

3.2

4.0

3.8

3.4

3.2

3.4

122.7

3.96

243

Nov.

3.2

2.9

2.8

2.8

2.8

2.8

2.8

2.6

2.6

2.4

2.6

2.8

4.5

6.3 4TB4.5

4.5

4.8

5.2

5.2

5.0

4.5

4.0

4.0

4.0

3.8

3.8

3.8

4.0

4.0

113.8

3.79

226

Dec.

4.0

TV

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.8

.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

147.3

4.75

292

Jan.

5.0 570-

5.0

5.0

5.2

5.2

5.2

5.2

5.2

5.8

8.9

9.4

7.0

6.3

5.8

6.0

5.8

5.8

6.6

6.6

6.3

6.0

6.0

5.8

5.8

5.8

5.5

5.5

12

13

TET

201.7

6.51

400

Feb.

8.9

8.6

8.2

7.9

7.6

7.3

7.3

7.0

7.0

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.0 B70"

6.0

6.0

6.6

7.6

7.6

7.3

7.3

11

Iff

_

-

204.0

7.29

405

Mar.

13

14

IT

11

9.7

9.7

9.7

10

10

10

9.7

9.2

8.9

8.6

8.6

8.6

8.6

8.6

8.2

7.9

7.9

7.6

7.3

7.0

TTCr

7.0

7.0

7.0

7.0

7.0

7.0

273.8

8.83

543

Apr.

6.6

6.3

6.3

6.6

7.6

7.3

7.0

6.6

6.0

5.8

5.5

5.5

5.2

5.2

5.5

5.5

5.5

5.5

5.5

5.8

5.5

5.2

5.0 572"

8.6

9.6

7.6

9.9

2113"

-

211.4

7.05

419

May

ll

Tff

8.9

7.9

7.6

7.6

7.6

7.3

7.0

6.3

6.3

6.6

6.3

7.4

6.3

6.3

6.0

5.8

5.8

5.5

5.5

5.5

5.3

5.0

4.3

4.0

4.0

3.8

3.5

3.4

37T

191.2

6.17

379

June

3.4

3.2

3.0

3.2

3.4

3.8

4^0

4.0

4.0

3.5

3.4

3.0

2.9

2.8

2.8

2.8

2.9

2.9

2.9

2.8

2.8

2.8

2.8

2.6

2.6

2.4

2.2

2.0

1.8 T78-

-

88.5

2.95

176

July

1.6

ill

.6

.6

.4

.4

.3

.2

.2

.2

.3

.3

.3

.2

.1

.1

.1

.0

.0

.0

.0

.975"

.0

.0

1.0

.9

1.0

1.0

1.0

.9

36.2

1.17

72

Aug.

0.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.9

.9

1.0 "79"

.8

.7

7T

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.8

.9

1.0

1.0

25.7

0.83

51

Sept.

1.0

1.0

1.0

1.0

1.0

.9

.9

.8

7T

3.3

5.1

8.6

8.8

5.2

5.0

4.8

4.5

4.2

4.O

4.2

4.2

4.0

4.0

4.0

5.2

5.7

8.6

9.2

57T

8.9

-

128.8

4.29

255

Calendar year 1950: Max 111 Min 2.4 Mean 14.2 Ac-ft 10,250

Water year 1950-51 : Max 21 Min 0.7 Mean 4.78 Ac-ft 3,460
SAN GABRIEL RIVER BASIN 89 

San Gabriel River near Azusa, Calif.

Location. Lat 34°10'10", long. 117°53'16", in SW£ sec. 13, T. 1 N. , R. 10 W., on right 

Dame 1 mile downstream from Morris Dam and 3 miles northeast of Azusa

Drainage area.--211 sq mi.

Kecoras available. 1894 to September 1951.

uage.--water-stage recorder. Datum of gage is 867.59 ft above mean sea level (from Los 

Angeles County Flood Control District bench nark). Prior to August 1917, staff gages 

at several sites from l£ to 2 miles downstream at different datum. August 1917 to 

Sept. 30, 1937, water-stage recorders at several sites from l| to 2 miles downstream at 

different datum. Oct. 1, 1937, to Feb. 21, 1938, water-stage recorder at dite 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. Average combined discharge of river and diversions, adjusted for storage ana evaporation in Morris Reservoir and San Gabriel River flood-control reservoirs 

Nos. 1 and 2, 56 years (1895-1951), 158 cfs; median of yearly mean combined discharges, 

115 cfs.

Extremes. Maximum discharge during year, 168 cfs Apr. 27 (gage height, 6.20 ft); no flow 

during part of year.

1894-51: Maximum discharge, 65,700 cfs Mar. 2, 1938, computation of peak flow over 

Morris Dam; no flow for several months in most years.

Remarks. Records fair. Discharge measurements generally made three times a month. Flow 

regulated by San Gabriel flood-control reservoirs Nos. 1 and 2 (combined capacity, 

55,000 acre-ft) and by Morris Reservoir (capacity, 35,000 acre-ft) of Metropolitan Water 

District of southern California. Azusa Canal (formerly power canal of Southern California Edison Co.) diverts above high-water level of Morris Reservoir about 3 miles above 

station. The Metropolitan Water District of Southern California reports a discharge of 

4,360 acre-ft of Colorado River water into San Gabriel River below Morris Dam and above 

station during period April to September. They also furnish records of combined runoff 

of San Gabriel River and Azusa Canal, adjusted for storage and evaporation in Morris 

Reservoir and San Gabriel flood-control reservoirs 1 and 2, 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 .

December . .

March. .................

Combined runoff 

(acre -ft)

640

764

898

1,560

Month

May....................

Water year 1950-51...

Combined runoff 

(aore-ft)

10,490

C oope rat ion Twenty-three discharge measurements furnished by Los Angeles County Flood

uontroi District, through H. E. Hedger, chief engineer. 

Revisions (water years). W 551: Drainage area. W 961: 1941.

Discharge, In cubic feet per second, water year October 1950 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.

"(J 0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

20

15

1.6

.3

0

0

0

0

0

0

0

0

0

0

0

37.1

1.20

74

Nov.

0

0

0

Dec.

o

0

0

Jan.

o

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

^

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.7

~S.9 47

7.5

24

20

13

11

132.1

4.40

262

Calendar year 1950 : Max 20 Mln 0 Mean 0.17 

Water year 1950-51: Max 47 Mln 0 Mean 8.61

May

11

10

8.5

7.9

7.2

7.5

8.5

8.5

8.2

8.5

8.5

8.5

8.5

8.5

8.5

15

19

19

19

19

20

20

20

20

19

19

18

20

20

19

19

433.3

14.0

859

June

19

18

IS

19

19

19

19

20

19

19

19

19

19

20

19

19

19

19

19

19

19

20

21

21

20

20

20

20

20

-

582

19.4

1,150

July

21

~££ 22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

21

21

21

21

21

21

21

21

21

672

21.7

1,330

Aug.

21

22

23

TZ

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

21

21

21

21

21

21

21

21

20

672

21.7

1,330

Sept.

20

gQ

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

20

21

21

21

21

21

22 "2%

22

22

-

613

20.4

1,220

Ac-ft 125 

Ac-ft 6,220
SAN GABRIEL RIVER BASIN

Rogers Creek near Azusa, Calif.

Location. Lat 34°09'55", long. 117°54'20", in NW^JW;- sec. 23, T. 1 N., R. 10 W., on left 

Dank 0.5 mile upstream from mouth and 2.5 miles north of Azusa.

Drainage area. 6.4 sq mi, approximately.

Records available. October 1917 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 800 ft (from topographic map).

Average discharge. 34 years, 3.06 cfs; median of yearly mean discharges, 1.8 ofs.

Extremes.--Maximum discharge during year, 10 cfs Apr. 28 (gage height, 2.97 ft); no flow 

curing several months.

1917-51: Maximum discharge, about 2,600 cfs Apr. 7, 1926; no flow during parts of 

each year.

Remarks.--Records good. Discharge measurements made weekly during periods of flow and 

twice a month during rest of year. Diversion above station for irrigation of about 20 

acres below station.

Cooperation.--Two discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

2.3

2.4

2.5

2.6

2.7

2.8

1.2 

2.7 

5.4

Discharge, In cubic feet per second, water year October 1950 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.

0

0

o

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

^

O

0

0

0

o

0

0

o

.5

.7

.3

.2

.1

.1

.1

.2

2.6 T70"

.6

.4

.3

.3

.3

.2

.2

.2

1.5

1.3

.8

11.9

0.38

24

Feb.

0.7

.5

.4

.4

.3

.3

.3

.2

.2

.2

.2

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

7T

.3

.2

.3

.9

77

.

_

-

8.8

0.31

17

Mar.

1.1

1.379~

.7

.7

.6

.5

.4

.4

.3

.3

.3

.3

.2

.2

0

TJ

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

9.5

0.31

19

Apr.

~7T 0.1

.1

.1

.1

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.4

.7

.4

1.6

3.7

T75

-

11.0

0.37

22

May

1.0

77

.6

.5

.4

.2

.2

.2

.2

.2

.2

.2

.1

.1

0

0

0

o

0

o

o

0

0

o

0

0

o

0

0

o

0

4.8

0.15

9.5

June

0

0

0

July

0

o

0

Aug.

0

0

0

Sept.

0

o

0

Calendar year 195O: Max 14 Mln o Mean 0.64 Ao-ft 460

Water year 195O-51: Max 3.7 Mln 0 Mean 0.13 Ac-ft 92

Peak discharge (base, 35 cfs). No peak above base.
SAN GABRIEL RIVER BASIN 91

Fish Creek near Duarte, Calif.

Location. Lat 34°10'00", lang. 117°55'25", in SW£sw£ sec. 15, T. IN., R. 10 W., on left 

DanK 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 1951.

Gage.--Water-stage recorder and broad-crested weir. Altitude of gage is 1,000 ft (from 

topographic map). Prior to July 28, 1917, staff gage at same site but at different 

datum. Water-stage recorder and broad-crested weir used at same site and different 

datum since July 28, 1917 (destroyed by flood of Mar. 2, 1938). Staff gage at same 

site but different datum Mar. 15 to Dec. 7, 1938.

Average discharge.--34 years (1917-51), 4.13 cfs; median of yearly mean discharges, 2.7 

el's.

Extreme s. Maximum discharge during year, 16 cfs Apr. 28 (gage height, 0.87 ft); no flow 

during parts of several months.

1916-51: Maximum discharge, about 2,180 cfs Apr. 4, 1925; no flow during periods 

in occasional years.

Remarks.--Records good. Discharge measurements generally made three times a month during 

periods of flow. No diversion above station.

Cooperation. Three discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

Revisions (water years).--W 706: 1926.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

-0.05 

0 

.1 

.2

0 

.1 

.5

1.4

0.3 

.4 

.5

2.6 

4.1 

5.8

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

 1

 1

12"5

 «

^ ^

16 7

 0

1 O

20

1:1

22

23

24

25

26

1:7

28

29

20

:u

^ rtal ]''<«an

/ Vft

Oct.

0o0

0

0

0

o

0

o

0

0

0

o

0

0

0

0

o

0

0

0

0

0

0

0

0

.1

7T

.1

.1

.1

0.5

0.02

1.0

Nov.

0.1

.1

oo0

0

0

0

o

0

0

0

0

.2

.1

.1

.1

.1

1.4

T

.5

.4

.3

.3

.2

.2

.2

.2

.2

.2

-

5.7

0.19

11

Dec.

0.2

T

.3

.3

^

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.3

.3

.3

.3

.2

.2

.2

.4

.4

.4

.4

.3

9.2

0.30

18

Jan.

0.2

.4

.3

.3

.3

.2

.2

.3

.4

2.5

1.4

.5

.5

.4

.5

.4

.5

5.6 TTo-

.8

.8

.7

.6

.5

.5

.5

.5

2.9

1.7

.8

26.5

0.85

53

Feb.

0.7

.6

.6

.5 ^

.6

.7

.7

.7

.7

.7

.8

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

1.0 T5-

_

_

-

16.6

0.59

33

Mar.

1.9

TT

.3

.2

.1

.1

.0

.9

.8

.8

.8

.6

.6

.6

.6

.7

.6

.6

.6

.5

.5

.5

.5

.4

TT

.4

.5

.5

.5

.5

.5

23.3

0.75

46

Apr.

0.4

'.4:

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

1.3

.9

.7

2.8

4.5

T7T

-

22.7

0.76

45

May

0.9

!e

.5

.5

.5

.6

.6

.5

.4

.5

.5

.4

.5

.4

.4

.4

.4

.3

.3

.4

.3

.2

7?

.2

.2

.2

.2

.2

.2

.2

12.4

0.40

25

June

0.2 ?

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

0

0

0

o

0

0

0

.1

.1

.1

.1

.1

0

o

0

0

-

2.4

0.08

4.8

July

0

0

O

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950 : Max 24 Mln 0 Mean 0.92 Ac-ft 669

1'^ter year 1950-51 : Max 5.6 Mln o Mean O.33 Ac-ft 237

Peak discharge (base, 60 cfs). No peak above base.
92 SAN GABRIEL RIVER BASIN

San Gabriel River below Santa Pe Dam, near Baldwin Park, Calif.

Location. Lat 34°06'40", long. 117°58'20", on left bank at stilling basin of outlet of 

Santa Pe Dam, 0.3 mile north of Arrow Highway and 1.5 miles north of Baldwin Park, 

Los Angeles County.

Drainage area.--231 sq mi.

Records available.--October 1942 to September 1951.

Extremes. No flow during year.

1942-51: Maximum discharge, 6,700 cfs Jan. 24, 1943; no flow during several months 

of each year.

Remarks. No flow since June 8, 1948. Observations of no flow generally made twice a 

montn. Plow regulated by San Gabriel flood-control reservoirs Nos. 1 and 2 (combined 

capacity, 55,000 acre-ft), by Morris Reservoir of Metropolitan Water District of Southern California (capacity, 35,000 acre-ft), and by Santa Pe flood-control reservoir 

(capacity, 34,300 acre-ft). Diversions for power and irrigation, and for spreading to 

ground water in San Gabriel basin upstream and also in Rio Hondo basin downstream. 

Records include water diverted from outlet basin below Santa Pe Dam to Rio Hondo.

Cooperation.--Gage-height record and several observations of no flow furnished by Corps 

or engineers.
SAN GABRIEL RIVER BASIN 93

San Dimas Creek near San Dimas, Calif.

Location. Lat 34°08'45", long. 117°46'35", In SW^NE^- sec. 25, T. 1 N., R. 9 W., on left 

Dank at mouth of San Dimas Canyon, 0.7 mile downstream from San Dimas Dam and 3 miles 

northeast of San Dimas.

Drainage area.--18.3 sq ml.

Records' available.--December 1916 to September 1951.

Gage.--Water-stage recorder and broad-crested weir. Altitude of gage is 1,245 ft (from 

topographic map).

Average discharge. 34 years (1917-51), 4.60 cfs; median of yearly mean discharges, 3.0 

cTsT,

Extremes.--Maximum discharge during year, 5.0 cfs Apr. 12 (gage height, 0.35 ft); no flow 

during several days In September.

1916-51: Maximum discharge, 5,000 cfs Mar. 2, 1938, from records of release at 

San Dimas Dam and computed inflow between dam and gaging station; no flow during parts 

of many years.

Remarks.--Records good. Discharge measurements generally made once a week. Flow regulated by San Dimas flood-control dam Diversion for irrigation of small acreage just 

above station.

Cooperation.--Fifty-four discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Hedger, chief engineer.

Revisions (water years).--W 1061: 1938(M).

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used Apr. 12-19)

0.0 

.1 

.2

0

.6 

1.5

0.3 

.4 

.5

2.6 

3.8 

5.1

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

Z

3

4

5

6

7

8

9

10

11

1Z

13

14

15

16

17

18

19

ZO

Zl

ZZ

Z3

Z4

Z5

26

Z7

Z8

Z9

30

31

Total

Mean

Ac- ft

Oct.

0.1

TT

.1

.1

JL

.1.1.1.1.1

.1.1.1.1

.1

.1.1

.z

.z

.z

.z

,z.1.1.1

.z

.z

.z

.z.1

.z

4.Z

0.14

8.3

Nov.

o.z

.2

.Z

.2

.Z

.1

TT

.1

.Z

.1

.1

.Z

.4

TT

.Z

.2

.2

.2

.2

.2

.2

.2

.2

.1

.2

.2

.2

.1

.1

.1

-

5.4

0.18

11

Dec.

0.1 ~7T

.2

7?

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

4.4

0.14

8.7

Jan.

0.2

.2

.1

TT

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.4

TT

.4

5.7

0.18

11

Feb.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

0.

.2

.1

.1

.2

.2

.2

.2

.2

.2

^3

.3

.3

.2

.2

.2

.3

.3

.3

_

-

5.9

0.21

12

Mar.

~TT 0.3

.2

.2

.2

.2

.2

.2

.3

.3

.3

.2

.2

.1

TT

.2

.2

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

6.4

0,21

13

Apr.

0.3 ~~73~

.3

.3

.4

.4

.3

.3

.3

.3

2.4

4.8

TTT

4.7

4.5

4.3

4.3

4.2

4.2

3.7

3.2

2.7

2.7

2.7

2.2

.4

.4

.8

1.7

1.6

63.4

2.11

126

May

1.1

.4

.4

.4

.4

.6

1.4

2". 3

2.5

2.7

2.7

2.5

2.4

2.3

2.3

1.4

.7

.4

.2

.2

.2

.2

..2

.1

TT

.1

.1

.1

.1

.2

.2

28.9

0.93

57

June

0.1

.1

.1

.1

.1

.1

.2

TT

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

5.2

0.17

10

July

0.1 7J"

.1

.2

T?

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.2

.2

.1

.1

3.8

0.12

7.5

Aug.

0.2

TT

TT

.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.2

.2

.1

4.0

0.13

7.9

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

T?

.2

.1

.1

.1

0

0

0

0

0

0

.1

.1

0

' .1.1.1.1

0

-

2.5

0.08

5.0

Calendar year 1950: Max 7.0 Min 0.1 Mean 1.Z3 Ac-ft 892

^ter year 1950-51: Max 4.8 Mln O Mean 0.38 Ac-ft 277
94 SAN GABRIEL RIVER BASIN

Dalton Creek near Glendora, Calif.

Location. Lat 34°'09'30", long. 117°48'40", 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 Dalto-1

Dam, and 2.6 miles northeast of Glendora.

Drainage area.--7.5 sq mi, approximatley.

Records available. December 1919 to September 1951.

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 1,170 ft (from 

topographic map).

Average discharge.--31 years (1920-51), 1.11 cfs; median of yearly mean discharges, 0.34 cfs.

Extremes.--Maximum discharge during year, 2.6 cfs Jan. 11 (gage height, 0.65 ft); no flow 

during many months.

1919-51: Maximum discharge, about 850 cfs Mar. 2, 1938, from record of release froii 

Big Dalton reservoir; no flow for several months each year.

Remarks.--Records good. Discharge measurements or observations of no flow generally made 

SwTce a month. Plow regulated by Big Dalton flood-control reservoir (capacity, 950 acreft). Glendora Irrigation Co. made no diversions during this water year at diversion dam 

1.5 miles above station.

Cooperation.--Five discharge measurements furnished by Los Angeles County Flood Control 

District, through H. E. Hedger, chief engineer.

Rating table, water year 1950-51 (gage height, In feet, 

ancl discharge, In cubic feet per second)

0.0 O

.1 .1

.2 .2

.3 .-4

Discharge, In cubic feet per second, water year October 1950 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.

~7T 0.2

.1

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

0

0

0.4

0.01

0.8

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

.1

0

0

0.3

0.01

0.6

Feb.

0

0

0

Mar.

0

0

0

Apr.

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

0

-

0.1

0.003

0.2

Calendar year 1950: M&x 7.7 Mln 0 Mean 0.17

May

0

0

0

June

0

0

o

July

a.

0

0

0

0

0

0

0

0

.2

.3

.3

.3

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.2

0.04

2.4

Aug.

0

0

0

Sept.

C

c

C

Ac-ft 125

Water year 1950-51: Max 0.3 Mln 0 Mean 0.005 Ac-ft 4.0
SAN GABRIEL RIVER BASIN 

Little Dalton Creek near Glendora, Calif.

95

Location. Lat 34°10'05 M , long. 117°50'15", in SEij sec. 17, T. 1 N., R. 9 W. , on left bank

 O.a mile upstream from mouth of canyon and 2.5 miles northeast of Glendora.

Drainage area.--2.7 sq mi, approximately.

Records available.--December 1938 to September 1951. January 1929 to November 1938 at 

site u.a mile downstream; records not equivalent owing to difference in drainage area.

Gage.--Water-stage recorder. Datum of gage is 1,334.38 ft above mean sea level (levels by

 TIos Angeles County Flood Control District.

Average discharge.--13 years (1938-51), 0.77 cfs; median of yearly mean discharges, 0.4 

cTs"!

Extremes.--Maximum discharge during year, 5.4 cfs Jan. 11 (gage height, 0.58 ft); no flow 

during most of year.

1929-51: Maximum discharge, 960 cfs (estimated) Mar. 2, 1938; no flow at times each 

year.

Remarks.--No diversion above station.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

;:o

;:i ;:2

23;:4

 5

;.ei'7

iB

;9

voT l

"otaJ "ean

.'c-ft

Oct.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

00~

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

.1

0

0

0.3

0.01

0.6

Feb.

0

0

0

Mar.

0.1 ~7T

.1

0o0

0

0

.1

0

0

0

0

0

0

.1

0

0

0

a

0

0

0

0

0

0

0

0

0

0

0

0.5

0.02

1.0

Apr.

0D~

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

7T

-

1.0

0.03

2.0

May

0.1 ~7T

.1

0D~

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

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

r'alendar year 1950: Max 3.3 Mln 0 Mean 0.11 Ac-ft 81

r=ter year 1950-51: Max 0.5 Min 0 Mean 0.006 Ac-ft 4.2
96 SAN GABRIEL RIVER BASIN

San Jose Creek near Whittier, Calif.

Location. Lat 34°01'25", long. 118°02'05", in Paso de Bartolo Grant, on downstream side 

or Workman-Mill Road Bridge, 3 miles north of Whittier.

Drainage area.--85.2 sq mi.

Records available.--January 1929 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 214.85 ft above mean sea level (levels by 

Eos Angeles County Flood Control District).

Average discharge.--22 years, 8.39 cfs; median of yearly mean discharges, 5.2 cfs.

Extremes.--Maximum discharge during year, 97 cfs Jan. 29 (gage height, 1.96 ft); no flow 

on several days.

1929-51: Maximum discharge, 13,100 cfs Jan. 1, 1934; no flow at times.

Remarks.--One small diversion above station for ground-water recharge.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E, Hedger, chief engineer.

Discharge, in cubic feet per second, water year October 1950 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.

0.6

.6

.6

.4

.2

.4

.4

.4

.4

.4

.2

.4

.2

0

5

0

.2

.2

.8

1.2

1.0

1.0

1.0

.8

1.0

1.8

2.4

2.7

2.9

3.5

28.1

0.91

56

Nov.

2.2

T78

.8

.8

.6

.4

.2

72

.4

.8

.6

.6

1.0

1.8

1.4

1.0

.8

.8

1.0

1.4

1.6

1.4

1.4

1.4

1.0

1.0

1.0

1.2

1.0

-

30.8

1.03

61

Dec.

1.0

T70

1.0

1.0

1.2

1.2

1.2

1.2

1.6

1.8

1.8

1.6

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.6

2.0

275

1.8

1.6

1.6

1.6

1.4

1.6

1.4

1.2

44.8

1.45

89

Jan.

1.2

1.2

1.2

1.4

1.2

1.2

1.2

1.2

1.4

1.6

2.0

5.9

1.8

1.6

1.0

1.4

1.6

1.8

4.9

4.0

2.4

2.0

2.0

3.8

2.0

2.0

1.8

21

TT

2.7

90.9

2.93

180

Feb.

1.0

..8

.6

.4

76

1.2

1.6

1.4

.2

.2

.2

.6

.8

.0

.8

.8

.6

.6

.6

.4

.0

.6

.0

.0

.8

.8

.4

_

-

41.2

1.47

82

Mar.

2.9

3.1

T78

1.4

1.4

1.6

1.4

1.2

1.2

1.4

1.0

172

1.4

1.2

1.2

1.2

1.4

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.4

1.0

1.0

40.8

1.32

81

Apr.

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

1.2

1.0

1.0

.8

175

1.6

1.8

1.8

1.6

1.0

1.0

.8

1.4

1.4

2.0

T75

-

36.2

1.21

72

May

0.8

.4

.4

.2

7?

.6

.6

.4

.4

.4

.4

.2

.2

.6

.8

.8

.6

.4

.6

.6

.6

.8

1.0 

.8

.8

.8

.4

.2

.6

17.2

0.55

34

June

0.4

.4

.4

.4

.6

.8

.6

1.0

.8

.8

1.0

1.0

1.0

.8

.8

.6

.6

.6

.8

.8

.8

1.0

1.2

T75

.8

.4

.4

.4

.6

-

21.2

0.71

42

July

1.0

1.0

.4

.2

.6

.2

0

.2

.2

0

.2

.6

.6

.8

1.0

.8

.6

.4

.4

.6

.6

1.0

1.2

175

.8

.8

.8

1.0

1.2

1.2

20.4

0.66

40

Aug.

1.6

1.0

.6

.8

.8

.8

.8

.8

.4

74

.4

.4

.6

.6

.6

1.4

2.4

2.4

2.4

2.4

2.7

T78

1.2

.6

.6

.8

.6

.8

1.0

1.0

33.5

1.08

66

Sept.

0.8

.8

.8

.8

_._§_

1.0

I7T

1.0

.6

.6

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

'.8

.8

-

24.0

0.80

48

Calendar year 1950: Max 180 Min 0 Mean 2.16 Ac-ft 1,560

Water year 195O-51: Max 21 Min 0 Mean 1.18 Ac-ft 851
SAN GABRIEL RIVER BASIN

Location. Lat 34°00'?n", long. 118°04'OS", in'Paso De Bartolo Grant, 50 ft upstream from

Beverly Boulevard and 0.5 mile east of Pico, Los Angeles County. 

Drainage area.--206 sq mi (excluding area above Santa Fe Dam). 

Kecords available. October 1928 to September 1951. 

page. water-stage recorder. Altitude of gage is 180 ft (from topographic map). Prior

 ^o Nov. 15, 1947, at site 150 ft downstream at different datum. 

Average discharge.--23 years, 49.1 cfs; median of yearly mean discharges, 24 cfs. 

Extremes. Maximum discharge during year, 27 cfs Jan. 30 (gage height, 5.03 ft); no flow 

during most of the year.

1928-51: Maximum discharge, 22,700 cfs Mar. 2, 1938; no flow for periods each year. 

Remarks. Flow regulated by San Gabriel flood-control reservoirs Hos. 1 and 2 (combined

 capacity, 55,000 acre-ft), Morris Reservoir (capacity, 35,000 acre-ft) of Metropolitan 

Water District cf Southern California, Santa Fe flood-control reservoir (capacity, 

36,800 acre-ft), and several small flood-control reservoirs. Diversions above station 

for irrigation, power development, and ground-water replenishment.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

h. K. Hedger, chief engineer.

Revisions (water year).--W 881: 1937.

Discharge, In cubic feet per second, water year October 1950 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.

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

2.4 2.2'

0

0

0

.1

1.6

1.7

2.4

2.4

7.7

16

T.2

43.7

1.41

87

Feb.

6.9

6.2

7.5

7.2

6.2

6.9

7.5

7.5

7.5

7.8

7.8

8.8

8.8

10

T.8

9.2

5.6

3.8

4.1

5.5

5.3

3.6

5.4

4.9

5-. 2

5.4

5.4

5.6

_

-

180.2

6.44

357

Mar,

6.2

HT

4.7

4.5

4.3

4.3

4.3

3.8

3.6

3.8

3.6

3.0

2.3

2.0

1.0

O0"

0

0

0

0

o

0

0

0

0

0

0

0

0

0

57.3

1.85

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 1950: Max 272 Mln 0 Mean 5.14 Ac-ft 3,720

Water year 1950-51: Max 16 Mln 0 Mean 0.77 Ac-ft 558

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

Location.--Lat 33 0 48'40", long. 118°05'30", in Los Alamitos Grant, on downstream side of 

spring Street Bridge, 1.5 miles west of Los Alamitos, Orange County.

Drainage area. 216 sq mi (excluding area above Santa Fe Dam).

Kecoras available.--October 1936 to September 1951 in reports of Geological Survey. 

iaay-ab in reports of Los Angeles County Flood Control District.

Gage.--Water-stage recorder. Datum of gage is 16.69 ft above mean sea level (levels by 

Eos Angeles County Flood Control District).

Average discharge.--24 years (1927-51), 29.4 cfs; median of yearly mean discharges, 2.0 

crs.

Extremes.--Ho flow during year.

T936-51: Maximum discharge, 27,300 cfs (estimated) Mar. 2, 1938; no flow during 

several months of each year.

Remarks.--Ho flow since Mar. 25, 1947. Flow regulated by San Gabriel flood-control reservotrs Hos. 1 and 2 (combined capacity, 55,000 acre-ft), Morris Reservoir (capacity, 

35,000 acre-ft) of Metropolitan Water District of Southern California, Santa Fe floodcontrol reservoir (capacity, 36,800 acre-ft), and several small flood-control reservoirs. Many diversions above station for domestic use and irrigation.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

ti. K. Hedger, chief engineer.
98 SAN GABRIEL RIVER BASIN

Brea Creek below Brea Dam, near Fullerton, Calif.

Location. Lat 33°53'15", long. 117°55 I 30", on right bank 0.2 mile downstream from Brea 

Dam and 1 mile north of Fullerton, Orange County.

Drainage area. 23.4 sq mi.

Records available.--January 1942 to September 1951.

Gage. Water-stage recorder and V-notch sharp-crested weir. Datum of gage is 197.70 ft 

above mean sea level (levels by Corps of Engineers). Prior to Oct. 25, 1946, waterstage recorder at same site and datum without weir.

Average discharge.--9 years, 0.63 cfs.

Extremes.--Maximum discharge during year, 5.4 cfs Nov. 14 (gage height, 0.92 ft); no flow 

during most of year. »

1942-51: Maximum discharge, 655 cfs Feb. 29, 1944 (gage height, 5.10 ft); no flow 

during parts of most years.

Remarks.--Records good. Discharge measurements generally made twice a month. Flow regulated by Brea flood-control reservoir (capacity, 4,100 acre-ft).

Revisions (water years). W 1041; 1944(M).

Cooperation.--Gage-height record furnished by Corps of Engineers.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

Z

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

31

ZZ

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

.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

0.3

0.01

0.6

Dec.

0

0

0

Jan.

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

0

0.1

0.003

0.2

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

Calendar year 1950; Max 4.1 Mln 0 Mean 0.02 Ac-ft 17

Water year 1950-51; Max 0.3 Mln 0 Mean 0.001 Ac-ft 0.8
SAN GABRIEL RIVER BASIN 99

Brea Creek at Fullerton, Calif.

Location. Lat 33°52'2S", long. 117°55'30", in San Juan Cajon de Santa Ana Grant, between

Maiden Avenue and U. S. Highway 101 at Pullerton, Orange County. 

Drainage area.--26.2 sq mi.

Hecoras available. October 1930 to September 1951.

uage. water-stage recorder. Altitude of gage is 250 ft (from topographic map). 

Iverage discharge. 20 years (1930-38, 1939-51), 1.25 cfs; median of yearly mean (discnarges, u.b cfs. 

Extremes.--Maximum discharge during year, 62 cfs Nov. 13 (gage height, 0.41 ft), no flow

during most of year.

1930-51: Maximum discharge, 3,700 cfs Mar. 14, 1941 (gage height, 5.45 ft); no flow

during most of each year.

Remarks.--Flow regulated by Brea flood-control reservoir (capacity, 4,100 acre-ft). 

uoopera'tion. Records furnished by Orange County Flood Control District, through J. A.

Bradley, flood-control engineer.

Discharge, in cubic feet per second, water year October 1950 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

^an

Ac- ft

Oct.

0

0

0

Nov.

o0"

0

0

0

0

0

0

0

0

0

0

~7T 4.6

0

0

0

0

.6

.1

0

0

0

0

0

0

0

0

0

0

-

5.4

0.18

11

Dec.

0

0

0

Jan.

00"

0

0

0

0

0

0

0

.8

.6

.1

0

0

0

.2

0

0

0

0

0

0

0

0

0

0

0

0

2.0

0

0

3.7

0.12

7.3

Feb.

0o0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

o .5

0

_

_

-

0.6

0.02

1.2

Mar.

0.1 ff 

o0

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

Apr.

00"

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.3

0

0

.3

0

0

-

0.8

0.03

1.6

May

0o0

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

0.1

0.003

0.2

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

t5

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

o .1

0

-

0.1

0.003

0.2

Calendar year 1950: Max 13 Min 0 Mean 0.07 Ac-ft 52

 later year 1950-51: Max 4.6 Min 0 Mean 0.03 Ao-ft 22

Pullerton Creek below Pullerten Dam, near Brea, Calif.

location.--Lat 33°53 I 40", long. 117°53'05", in San Juan Cajon De Santa Ana Grant, on left 

bank of outlet channel of Pullerton Dam, 1.6 miles southeast of'Brea, Orange County.

Drainage area.--3.05 sq mi.

''ecords available. --October 1941 to September 1951.

Ijage.--water-stage recorder. Altitude of gage is 260 ft (from topographic map).

' verage discharge.--10 years, 0.14 cfs; median of yearly mean discharges, 0.02 cfs.

liixtr ernes.--TOO now during year.

1541-51: Maximum discharge, 298 cfs Mar. 16, 1943 (gage height, 3.80 ft); no flow 

most of each year.

Remarks --Mo flow since Feb. 11, 1950. Observations of no flow generally made twice a 

montn. Plow regulated by Fullerton flood-control reservoir (capacity, 743 acre-ft). 

Figures for calendar year 1950 are as follows: Maximum daily discharge, 1.2 cfs; minimum daily, zero; mean, 0.003 cfs; runoff, 2.4 acre-ft.

Cooperation.--Gage-height record furnished by Corps ,of Engineers.
100 SAN GABRIEL RIVER BASIN

Fullerton Creek at Fullerton, Calif.

Location.--Lat 33°52'20", long. 117 0 54'20', in San Juan Cajon de Santa Ana Grant, on 

Raymond Avenue Bridge at Fullerton, Orange County.

Drainage area.--6.2 sq mi, approximately.

Records available. October 1939 to September 1951 in reports of Geological Survey. OctoDer 19ab to September 1939 in files of Orange County Flood Control District.

Gage.--Water-stage recorder. Altitude of gage is 170 ft (from topographic map).

Average discharge .--16 years (1935-51), 0.71 cfs; median of yearly mean discharges, 0.3 eft.

Extremes.--Maximum discharge during year, 38 cfs Nov. 13 (gage height, 0.95 ft); no flow 

on many days.

1935-51: Maximum discharge, 1,600 cfs Mar. 14, 1941 (gage height, 10.05 ft); no 

flow for many days each year.

Remarks. Local irrigation company occasionally wastes water to creek during summer months. 

Flow regulated by Fullerton flood-control reservoir (capacity, 743 acre-ft).

Cooperation.--Records furnished by Orange County Flood Control District, through J. A. 

Bradley, flood-control engineer.

Discharge, In cubic feet per second, water year October 195O 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.

0

.z

.4

.4

.4

.4

.4

.2

.1

.2

.4

.4

.3

.5

.1

0

.7

.8

.4

.8

.9.9-

1.0

.4

1.0

1.0

1.2 ~78

0

0

0

14.3

0.46

28

Nov.

0

.4

1.1

.6

0

0

0

0

0

.3

.8

0

S~3.1

0

0

0

1.1

2.9

0

0

0

0

0

0

0

0

0

0

0

-

10.3

0.34

20

Dec.

0

0

o

Jan.

0

Tj

0

0

.1

0

0

0

0

.8

.9

0

0

0

0

.7

0

.2

.4

0

0

0

0

0

0

0

0

0

0~2.4

0

5.5

0.18

11

Feb.

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

c~1.5

0

.8

.6

0

_

-

-

3.2

0.11

6.3

Mar.

S~1.7

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

1.8

0.06

3.6

Apr.

0

0

.3

.5

.2

0

0

0

0

0

0

0

0

0

0

0

0

.4

0

0

0

0

.1

.8

1.5

.1

0

1.1

.6

.2

-

5.6

0.19

11

May

0.1

^&

.8

.4

.7

0

0

0

0

0

0

0

.1

.3

0

0

0

0

0

0

0

0

0

0

0

.6

0

0

.1

0

0

3.9

0.13

7.7

June

0

0

0

0

.1

.3

.1

0

o

0

0

0

.3

0

1.0

0

0

0

.7

.2

.1

.9

0

0

0

0

0

0

0

0

-

3.7

0.12

7.3

July

0

0

.2

0

0

0

.2

0

0

0

1.2 ~7Z

0

.2

0

.4

.3

0

.2

.1

0

0

0

.7

.1

0

.1

.8

0

.4

.3

5.4

0.17

11

Aug.

0.3

~

.8

.4

0

.5

0

O

.4

.1

0

0

.3

.3

.2

0

0

0

0

0

.1

0

0

0

0

0

0

0

.2

0

0

4.3

0.14

8.5

Sept.

0

5

.7

J~£

.8

.9

.1

0

0

0

.8

0

0

.5

.8

0

0

0

0

0

.7

0

0

0

0

0

0

.3

0

0

-

7.2

0.24

14

Calendar year 1950: Max 3.3 Mln 0 Mean 0.26 Ac-ft 190

Water year 1950-51: Max 3.1 Mln 0 Mean 0.18 Ac-ft 128
SAN GABRIEL RIVER BASIN 101

Coyote Creek near Artesia, Calif.

Location. Lat 33°50'45" (revised), long. 118°03'30", in Los Coyotes Grant, on downstream 

side of right abutment of Del Amo Street Bridge, 1.8 miles southeast of Artesia, Los 

Angeles County.

Drainage area.--110 sq mi.

hecoras available.--October 1939 to September 1951 in reports of Geological Survey; January laau to September 1939 in reports of Los Angeles County Flood Control District.

Gage.--Water-stage recorder. Datum of gage is 28.38 ft above mean sea level (levels by 

Eos Angeles County Flood Control District). Prior to Oct. 30, 1936, at site 150 ft 

downstream at different datum. Oct. 30, 1936, to Feb. 17, 1937, at site 200 ft downstream at different datum.

Average discharge.--21 years (1930-51), 7.85 cfs; median of yearly mean discharges, 4.2 

crs.

Extremes.--Maximum discharge during year, 11 cfs Jan. 30 (gage height, 4.76 ft); no flow 

on many days.

1930-51: Maximum discharge,-4,190 cfs Feb. 6, 1937 (gage height, 10.1 ft); no flow 

at times.

Remarks. No diversion above station.

cooperation.--Records furnished by Los Angeles County Flood Control District, through H. 

B. Heager, chief engineer.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

1

8

9

10

11

12

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

.8

175

1.2

.8

1.4

1.6

1.6

1.2

2.0

2.0

1.7

1.8

2.9

2.4

1.7

1.9

2.7

2.9

2.8

2.4

3.8

4.7

4.8 37S3.7

4.1

4.0

3.4

3.8

3.7

78.8

2.54

156

Nov.

3.0

2.6

2.8

2.5

2.8

2.7

3.5

4.0

3.6

3.8

3.4

3.6

4.1

5.8

3T4

3.6

3.8

3.3

3.5

4.7

3.7

3.6

4.1

3.2

2.5

1.8 3"7?

2.6

3.6

2.8

101.6

3.39

202

Dec.

2.5

2.5

2.9

3.0

2.9

3.2

3.3

3.2

3.3

3.0

2.8

4.0 375"

3.3

3.0

3.2

3.5

3.0

3.5

3.5

3.5

3.5

3.7

3.6

3.6

 279" 2.4

3.2

3.2

3.2

3.3

99.2

3.20

197

Jan.

3.0

3.6

2.7

2.1

1.5

1.8

3.2

3.5

3.5

3.8

4.3

4.6

4.6

4.0

3.7

4.0

4.5

4.2

4.3

4.4

4.3

4.3

4. '2

4.1

4.0

4.0

4.0

4.0

4.8

8.4

B7T

122.5

3.95

243

Feb.

4.0

3.6

3.3

2.6 1.'9

1.6

1.1

.8

.778"

.9

1.1

1.8

1.9

2.5

2.9

3.0

3.0

2.9

2.9

3.1

3.2

3.5

4.3

TT5

4.0

3.5

4.3

_

_

-

73.5

2.62

146

Mar.

5.9

7.0 578"

5.0

4.6

4.6

5.0

4.9

4.9

4.3

3.4

3.0

2.2

2.0

1.7

1.8

1.6

1.1

.6

.4

.5

1.4

1.7

1.3

1.1

1.0

1.0

.7

.6

.3

^a

79.5

2.56

158

Apr.

~7S 0.1

.2

.6

1.4

1.6

1.1

1.0

.6

1.0

1.8

1.5

2.2

1.9

1.1

.6

1.0

1.0

.8

1.1

2.8

m

1.5

1.0

1.1

1.3

1.3

1.1

1.5

2.3

-

37.2

1.24

74

May

2.0

1.2

1.1

1.2

1.2

.9

.7

.5

.3

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.6

1.3

3.8 ?78-

1.6

2.0

2.4

2.4

2.0

1.4

.7

.3

31.4

1.01

62

June.

0.4

.4

.6

1.0

1.0

.7

.3

.1

0

V

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.0

1.1

1.8

2.7 270"

-

13.1

0.44

26

July

1.2

1.1

.3

.1

0

0

.1

2.8

77£

1.6

1.0

.5

1.0

1.1

1.2

2.1

2.6

2.3

1.6

1.0

.7

2.5

2.8

1.6

1.0

.9

2.0

2.0

1.8

1.2

.8

41.7

1.35

83

Aug.

0.7

.6

.8

.7

.6

.8

.7

.4

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.3

.8

1.8 TTe"

1.1

.6

.5

.5

12.9

0.42

26

Sept.

1.0

1.2

T7T

1.0

.8

.9

.2

.1

.0

.2

.2

.2

1.0

1.0

.9

1.0

.9

.9

1.0

.7

.6

.5

.6

.6

.3

.2

0

ff

0

.1

-

23.2

0.77

46

Calendar year 1950: Max 89 Kin 0 Mean 2-96 Ac-ft 2,140

Water year 1950-51: Max 8.4 Mln 0 Mean 1-96 Ac-ft 1,420

Carbon Creek near Yorba Linda, Calif.

Location.--Lat 33°53'20", long. 117°50'40", in San Juan Cajon De Santa Ana Grant, on 

downstream side of left bridge abutment on Yorba Linda Boulevard, 1.8 miles west of 

Yorba Linda, Orange County.

Drainage area. 20.4 sq mi.

Kecoras available.--October 1949 to September 1951.

uage. water-stage recorder. Datum of gage is 288.60 ft above mean sea level, unadjusted

Extremes.--Maximum discharge during year, 2.3 cfs Nov. 13 (gage height, 2.96 ft, from 

nign-water mark); no flow during most of year.

1949-51: Maximum discharge, that of Nov. 13, 1950; no flow during most of each 

year.

Remarks.--Records fair. The only flow during the 1951 water year occurred on Nov. 14. 

ine mean discharge for that day is estimated as 0.1 cfs. The mean discharge for the 

month of November is 0.003 cfs, that for the water year is 0.0003 cfs, and that for 

calendar year 1950 is 0.0008 cfs. Runoff for the month of November and that for the 

water year is 0.2 acre-ft, and that for calendar year 1950 is 0.6 acre-ft. No known 

diversion above station.

256498 O - 53 - 8
102 LOS ANOELES RIVER BASIN

Los Angeles River at Sepulveda Dam, Calif.

Location. Lat 34°09'50", long. 118°28'10", on right bank of outlet channel of Sepulveda 

Dam, in Ex Mission San Fernando Grant, 0.2 mile upstream from Sepulveda Boulevard in 

city of Los Angeles, and 2 miles southwest of Van Nuys, Los Angeles County.

Drainage area.--155 sq mi.

Hecoras available.--May 1943 to September 1951.

aage.--water-stage recorder and concrete control. Altitude of gage is 675 ft (from topographic map).

Average discharge. 8 years, 16.4 cfs.

Extremes. Maximum discharge during year, 297 cfs Jan. 29 (gage height, 3.53 ft); minimum

 daily, 1.3 cfs Sept. 20-22, 24, 25.

1943-51: Maximum discharge, 4,800 cfs Feb. 22, 1944 (gage height, 7.90 ft); minimum 

daily, that of Sept. 20-22, 24, 25, 1951.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements generally made three times a month. Flow 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 was as follows:

Water year

1948 

1949 

1950 

1951

Discharge in 

acre-feet

3,100 

1,500 

1,300 

3,900

Cooperation.--Sage-height record furnished by Corps of Engineers.

Rating table, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second)

(Shifting-control method used Oct. 1-22, Nov. 2 to Feb. 17, 

Feb. 22 to Mar. 18, Mar. 28 to Apr. 4)

0.6

.7

1.3 

2.1 

3.9 

1.2 7.8

1.6 16

2.0 28

2.2 43

2.5 82

Discharge, In cubic feet per second, water year October 1950 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.

2.4

2.9

3.1

3.0

2.9

2.9

2.4

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2.4

2.4

3.2

2.7

2.4

i.O

3.0

2.9

2.7

3.1

2.2

1.4

rr3T

2.8

2.6

2.5

83.1

2.68

165

Nov.

2.5

3.2

2.1

2.2

2.2

2.0

2.1

2.1

2.2

2.1

1.8 rs11

14

T.2

2.7

2.5

2.8

4.4

6.3

3.4

2.4

2.4

2.4

2.3

2.4

2.3

2.4

2.5

2.5

-

100.2

3.34

199

Dec.

2.6

2.5

2.6

2.6

2.5

2.4

2.3 274-

22

51

52

52

52

52

52

52

52

52

52

S3

54

5555"

55

55

55

53

53

53

53

52

1,206.9

38.9

2,390

Jan.

53

53

53

53

53

53

53

53

53

7_1

69

59

53

52

30

28

19

8.6

51

22

6.4

5.2

4.8

6.2

4.5

4.2

4.1

rr

67

22

6.9

1,075.0

34.7

2,130

Feb.

4.6

4.2

3.8

3.8

3.8

3.7

3.6

3.6

3.6

3.6

3.5

3.4

3.2

3.1

rrr

3.2

3.2

3.4

3.4

3.2

3.3

5.0

8.7

5.5

3.3

3.4

11

T.2

^

_

-

117.4

4.19

233

Mar.

27iy

4.2

3.1

3.2

3.4

3.5

3.2

3.2

3.1

2.9

2.7

S7S

2.8

2.7

3.2

5.1

3.6

2.8

2.7

2.9

3.4

3.5

3.0

3.1

3.5

2.9

3.0

3.0

2.9

3.0

132.4

4.27

263

Apr.

2.7

2.4

777

8.5

5.0

3.7

3.6

3.5

3.4

3.4

3.3

3.2

3.2

3.2

3.3

3.3

3.4

3.6

3.6

3.5

3.5

3.5

3.5

4.2

10

7.0

4.6

6.7

16

~BT.l

136.6

4.55

271

May

4.3

3.4

3.3

3.2

3.3

3.1

3.0

3.2

3.4

4.9

4.2

3.4

2.9

3.0

2.8

2.8

3.8

4.8

2.6

2.9

2.7

2.8

2.9

3.0

3.0

2TB- 2.4

2.6

2.8

2.6

2.6

98.2

3.17

195

June

2.7

2.5

2.4

2.6

2.9

2.8

2.7

2.8

2.7

2.7

3.4

2.4

2.3

2.3

2.5

2.9

3.1

2.7

5.3

4TT

3.6

3.5

3.4

3.0

3.0

2.9

2.4

2.2

2.2

2.0

-

86.0

2.87

171

July

2.1

1.9

2.2

2.1

2.3

2.1

2.0

2.0

2.2

2.2

2.3

2.3

2.2

3.0

27ff

2.7

2.7

2.4

2.6

2.1

2.1

1.9

2.0

2.2

2.9

2.2

2.0

1.8

T7ET

1.8

1.9

68.8

2.22

136

Aug.

2.1

2.3

2.5

2.3

2.0

1.8

2.0

1.8

1.8

1/7

2.0

1.8

1.9

2.0

2.0

2.2

2.5

2.6

2.3

2.2

2.3

2.5

2.1

1.8

1.8

1.7

1.9

STS 4.21

2.6

2.5

69.1

2.23

13.7

Sept.

2.9 275"

2.2

2.2

2.3

2.2

2.1

2.0

1.8

1.9

1.6

1.6

1.7

2.3

2.2

1.7

1.6

2.8

1.8

1.3

1.3

1.3

1.4

1.3

1.3

1.6

2.3

2.3

2.2

2.2

-

58.0

1.93

115

Calendar year 1950: Max 125 Mln 1.4 Mean 7.94 Ac-ft 5,740

Water year 1950-51: Max 71 Mln 1.3 Mean 8.85 Ac-ft 6,400

Note. No gage-height record Jan. 3-7, Apr. 

of z discharge measurements, weather records, 

downstream.

5 to May 1, Aug. 14-23; discharge estimated on basis 

and unpublished records at a station half a mile
LOS ANGELES RIVER BASIN 

Pacoiina Creek near San Fernando, Calif.

103

Location. Lat 34°20'02", long. 118°23'55", in SE^NE^ sec. 24, T. 3 N., R. 15 W., 500 ft 

downstream from Pacoiina Dam, 600 ft upstream from mouth of canyon, and 4 miles northeast of San Fernando.

Drainage area.--28.2 sq mi.

Records available.--March 1916 to September 1951.

Gage. Water-stage recorder and broad-crested weir. 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 Pacoima Dam. 

Mar. 24, 1933, to Feb. 1, 1935, at site 450 ft downstream at different datum.

Average discharge.--34 years (1917-51), 8.19 cfs; median of yearly mean discharges, 4.4 cfe.

Extremes. Maximum discharge during year, 102 cfs Jan. 11 (gage height, 4.20 ft); no flow 

during several months.

1916-51: Maximum discharge, 2,440 cfs Mar. 3, 1938; no flow for several months in 

most years.

Remarks.--Flow regulated by Pacoima flood-control reservoir (capacity, 4,710 acre-ft). 

Flow passing over Pacoiina Dam spillway enters creek below station.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Revisions (water years).--W 881: 1938(M). W 1041: 1944(M).

Discharge, in cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

C

0

0

0

0

0

0

0

0

0

0

1.4

0

0

0

0

3.5

~TS 4.S

0

0

0

0

0

0

0

0

0

0

-

10.3

0.34

20

Dec.

0

C

0

0

0

0

0

0

0

0

0

0

0

0

JL

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.5

0.02

1.0

Jan.

0

c

0

.5

0

0

0

0

0

6.8

10

.1

0

0

0

.3

0

2

2.5

0

0

0

0

0

0

0

0

0

15

.7

0

37.9

1.22

75

Feb.

0

C

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

.1

.3

0

_

_

-

0.5

0.02

1.0

Mar.

1.3

0

S

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

c

0

0

0

0

0

0

0

0

0

0

0

1.4

0.05

2.8

Apr.

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

0

9.8

rs

0

-

12.5

0.42

25

May

0

0

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0.

0

0

Calendar year 1950: Max 98 Min 0 Mean 1.41 Ac-ft 1,100

Water year 1950-51: Max 15 Min 0 Mean 0.17 Ac-ft 125
104 LOS ANGELES RIVER BASIN

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

Location.--Lat 34°18'33", long. 118°08i40", on left bank 500 ft downstream from Mill Creek 

ana 2 miles west of Colby Ranch, Los Angeles County.

Drainage area. 64.9 sq mi.

Records available.--January 1948 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,650 ft (from topographic map).

Extremes.--1948: Maximum discharge during period January to September, 111 cfs Apr. 29 

(gage height, 6.32 ft); minimum daily, 0.1 cfs on many days.

1948-49: Maximum discharge during year, 13 cfs Mar. 4 (gage height, 5.12 ft); no 

flow on many days.

1949-50: Maximum discharge during year, 36 cfs Feb. 6 (gage height, 5.45 ft); no 

flow on many days.

1950-51: Maximum discharge during year, 6.7 cfs Jan. 29 (gage height, 5.00 ft); no 

flow Oct. 3, 4.

Remarks.--Ho diversion above station.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. K. Hedger, chief engineer.

Discharge, In cubic feet per second, 1948-51

1948

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

Oct. Nov. Dec. Jan.

_

_

_

-

.

_

_

_

-

_

_

_

-

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.9

1.9

1.9

1.9

2.0

2.0

2.0

_

_

-

Feb.

2.1 2TT

2.1

2.1

JL3

8.4

4.8

4.0

3.7

4.1

3.7

3.3

3.2

3.2

3.3

3.6

3.8

4.4

4.4

4.1

4.0

3.8

3.7

3.4

3.3

3.3

3.3

3.3

3.4

-

114.9

3.96

228

Mar.

3.2

3.2

3.2

3.1

3.1

2.9

2.8 2T5

2.8

2.8

2.8

2.8

4.6

7.4

5.3

4.0

6.6

5.3

4.8

4.8

4.2

4.0

3.8

8.0

9.1

6.5

6.0

5.6

5.4

5.3

5.0

141.2

4.55

280

Apr.

4.8

5.0

6.0

6.0

5.6

5.4

5.3

4.8

4.7

4.6

4.6

4.4

4.4

4.4

4.2

4.1

4.0

3.8

3.6

3.6

3.6

3.7

3.6

3.4

3.4

3.3

3T3

6.8

42

T5

-

178.4

5.95

354

May

8.5

T^.

5.9

5.3

4.8

4.1

4.1

4.1

4.0

4.0

3.8

3.3

2.9

2.8

2.5

2.4

2.2

275

3.0

3.3

3.0

2.7

2.3

2.3

2.3

2.3

2.5

2.7

2.5

2.5

2.5

108.4

3.50

215

June

2.6

2.9

m2.0

2.1

1.8

1.7

1.5

1.5

1.3

1.2

1.2

1.1

1.0

1.0

.8

.8

.8

.8

.8

.8

1.0

.9

.8

.8

.7

.6

.6

.4

.4

-

36.3

1.21

72

July

0.4

.3

.3

.3

.3

.3

.3

.2

.2

.1

.T

.1

.1

.1

.1

.1

.1

.1

.1

,]_

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

5.0

0.16

9.9

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

.2.-?

.2

.2

.2

.2

.2

-

3.7

0.12

7.3

Calendar year : Max Mln Mean Ac -ft

Water year : Max Min Mean Ac-ft
LOS ANGELES RIVER BASIN

Discharge, in cubic feet per second, of Tujunga Creek "below Mill Creek, 

near Colby Ranch, Calif., 1948-51 Continued

Day

1

2

3

4

5

6

7

8

9

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.

0.3 75

.3

.3

.4

'.6

13.4

0.43

27

Nov.

0.6 -75

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.7

.7

.7

.8. 5

.8

.8

.8

.8

.8

-

20.3

0.68

40

Dec.

0.8 ~7ff

1.2

1.3

.8

.9

.9

.9

.0

.0

.0

.0

.0

.0

.0

.1

.2

.7

.4

.4

.3

.6

.6

.4

.4

.9

.5

778

.0

.9

.8

47.6

1.54

94

Jan.

1.7

1.6

1.6

1.5

T75

1.6

1.6

1.6

1.8

1.8

2.1

1.9

2.0

2.2

2.0

1.9

1.8

1.8

2.6

7.7

4.6

4.0

3.1

2.6

2.6

2.8

2.8

2.8

2.5

2.5

2.6

75.3

2.43

149

Feb.

2.5

777

2.7

2.7

2.7

2.6

3.3

3.3

2.7

2.6

3.9

4.8

3.7

3.1

3.2

3.2

3.3

3.4

3.6

4.0

4.0

4.0

4.1

5.2

7.2

7.5

8.4

F77

_

_

-

lll.l

3.97

220

Mar.

5.6

5.6

6.9

8.6

10

8.2

6.9

6.1

5.8

5.8

11

To

8.9

8. E

7.8

7.4

7.2

6.9

6.9

6.9

6.5

6.1

6.1

5.8

5.8

5.3

5.2

5.0

4.7

4.6

177

210.5

6.79

418

Apr.

4.8

4.7

4.6

4.4

4.4

4.2

4.1

4.0

3.8

3.7

3.6

3.6

3.6

3.7

3.6

3.6

3.7

3.7

3.6

3.2

2.9

2.7

2.5

2.4

2.2

2.2

2.2

2.2

2.1

104.7

3.49

208

May

2.1

2.1

2.1

2.0

1.8

.6

.6

.5

.5

.6

.6

.4

.3

.6

.1

.5

.7

.8

.1

575

.7

.0

.6

.3

_.o

.0

.0

.0

.1

.2

.1

56.6

1.83

112

June

1.1

T70

.8

.7

.6

.5

.4

.4

.4

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.T

.1

.1

.1

.3

.4

.4

.3

10.6

0.35

21

July

0.1 7X

o'

T3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.3

0.04

2.6

Aug.

0.1 1T~

TS

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

Sept.

0

0

0

Calendar year 1943 : Max - Min - Mean - Ac-ft -

Water year 1948-49 : Max 11 Min 0 Mean 1.78 Ac-ft 1,290

Day

1

2

3

4

5

6

7

8

9

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.

0.1

!i.1.1

.1.1.1.1.1

.1.1.1.1.1

.1.1

.2

.2

 5

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

5.7

0.18

11

Nov.

0.4 

.4

.4

.4

.4

.5

.6

.9

6.2

1.2

.7

.7

.6

.6

.6

.6

.5

.5

.6

.6

.6

.6

.5

.5

.5

.6

.6

.6

.6

-

22.9

0.76

45

Dec.

0.6 ~7S

.6

.6

.6

.7

.8

1.8

1.5

1.1

1.1

.8

.8

.8

.8

.9

.9

6.8

9.3

TTS

2.4

2.1

1.9

1.8

1.6

1.5

1.4

1.4

1.4

1.2

1.2

52.8

1.70

105

Jan.

1.2

1.2

1.2

1.2

1.2

1.1

T72

4.2

8.2

T74

4.8

4.8

3.1

3.4

3.1

2.9

2.9

3.1

3.6

3.6

3.6

3.1

2.9

2.7

2.4

2.2

2.1

2.4

3.8

3.1

2.7

90.4

2.92

179

Feb.

2.4

774

2.4

2.4

2.7

21

14

8.1

6.1

6.4

6.7

5.5

4.3

4.0

3.8

3.6

3.6

3.6

3.4

3.4

3.1

3.1

3.1

3.1

3.1

2.9

2.9

2.7

_

-

133.8

4.78

265

Mar.

2.7

2.7

2.7

2.7

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.1

771

2.1

2.1

2.1

4.0

7.1

3.6

3.1

2.9

2.7

2.7

2.4

81.4

2.63

161

Apr.

2.4

2.2

2.1

77T

2.1

2.1

2.2

9.4

11~5.8

4.5

4.0

3.8

3.4

2.9

2.7

2.7

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.E

2.2

2.2

2.1

-

93.9

3.13

186

May

2.1

2.1

2.2

772

2.2

2.1

2.1

.1

.8

.6

.5

.5

.5

.6

.6

.5

.5

.6

.5

.4

.2

.1

.1

,2

.2

1.1

.9

.7

.7

.5. g

46.0

1.48

91

June

~7S 0.6

.5

.4

.2

.5

.6

.5

.3

.2

.3

.3

.4

.4

.4

.4

.4

.4

.3

.2

.2

.2

.4

.6

.4

.2

.2

,1

.T

.1

-

10.4

0.35

21

July

0.1

0

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.3

0.04

2.6

Aug.

0.1 TT~

T3

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

Sept.

0

T3

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

.1

.1

-

0.7

0.02

1.4

Calendar year 1949: Max 11 Min 0 Mean 1.79 Ac-ft 1,290

Water year 1949-50: Max 21 Min 0 Mean 1.48 Ac-ft 1,070
106 LOS ANGELES RIVER BASIN

Discharge, in cubic feet per second, of Tujunga Creek below Mill Creek, 

near Colby Ranch, Calif., 1948-51 Continued.

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

75

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.3

.3

.2

.2

.3

3.9

0.13

7.7

Nov.

0.2

TZ

.2

.2

.2

.2

.2

.2

.2

.2

.3

.4

1.1

1.1

.6

.5

.5

.6

1.2 3

.7

.6

.6

.6

.5

.5

.5

.4

.4

.4

-

14.4

0.48

29

Dec.

~X0.5

.6

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.6

.6

.7

18.4

0.59

36

Jan.

~rr 0.7

.1

.7

.8

.7

.7

.7

.7

1.2

1.8

1.5

.9

.8

.8

1.1

.9

.9

1.2

1.1

1.1

.9

.9

.8

.8

.8

.8

.8

3.3

TT5

1.4

32.1

1.04

64

Feb.

1.1

1.1

.9

.9

.9

.9

.9

.9

.9

.8

.8

.9

.8

.8

.8

.8

.8

.9

.9

.9

.9

1.2

1.5

1.4

1.2

1.4

1.8

ITS

_

_

-

28.7

1.02

57

Mar.

1.9

TT5

1.8

1.6

1.5

1.5

1.5

1.4

1.4

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

 J

1.1

1.2

1.2

1.1

1.1

1.1

39.8

1.28

79

Apr.

1.1

.9

.9

.4

.4

.2

.4

.2

.9

.9

.8

.7

.7

.7

.7

.8

.8

.8

.9

.9

.9

.8

.7

.7

1.2

1.9

1.4

2.0

4.3

7^

-

35.2

1.17

70

May

1.8

TTS

l.l

.9

.9

.8

.8

.7

.7

.6

.6

.6

.6

1.1

1.1

.8

.6

.6

.4

.3

.5

.5

.4

.3

.3

.2

.?

.2

.2

.2

.3

19.8

0.54

39

June

~^0.3

.2

.2

.2

.3

.3

.3

.3

.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.04

.03

.33

.07

.07

.07

-

4.61

0.154

9.1

July

0.07 ~735

.06

.06

,06

.06

.06

.05

.05

.05

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.03

.03

.03

.03

.03

.03

.03

.02

.TO

.02

1.29

0.042

2.6

Aug.

~75T 0.01

.01

.02

.02

.02

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.04

.04

.04

.04

.04

.05

.05

.05

.06

.755

.06

.06

1.07

0.035

2.1

Sept.

0.06 ~^%

.05

.05

.05

.05

.05

.05

.05

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.05

.05

.05

.05

.05

.05

.06

.06

-

1.41

0.047

2.8

Calendar year 1950: Max 21 Mln 0 Mean 1.36 Ao-ft 980

Water year 1950-51: Max 4.3 Mln 0 Mean 0.550 Ac-ft 398
LOS ANGELES RIVER BASIN 107

Tujunga Creek near Sunland, Calif.

Location.--Lat 34°17'55", long. 118°16'10", near center of sec. 32, T. 3 N., R. 13 W.

(unsurveyed), on left bank 2 miles upstream from mouth of canyon and 4 miles northeast 

of Sunland.

Drainage area.--106 sq mi.

Records available. October 1916 to September 1951.

Gage.--Water-stage recorder. Datum of gage is -1,571.80 ft above mean sea level (levels by 

 Eos Angeles County Flood Control District). Prior to Oct. 1, 1932, at site 1,000 ft 

upstream at different datum.

Average discharge.--34 years (1917-51), 29.5 cfs, median of yearly mean discharges, 17 cfs.

Extremes.--Maximum discharge during year, 10 cfs Nov. 13 (gage height, 6.14 ft); minimum, 

0.2 cfs at various times.

1916-51: Maximum discharge, 50,000 cfs Mar. 2, 1938; minimum, 0.1 cfs 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, through 

H. K. Hedger, chief engineer.

Discharge, In cubic feet per second, water year October 195O 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.

3.6

3.6

3.5

3.3

373

3.5

3.5

3.3

4.2

4.5

4.3

4.1

4.0

4.1

4.0

3.8

3.8

3.8

3.8

3.8

4.0

3.5

3.8

4.0

4.6

5.1

575

4.6

4.6

4.8

123.9

4.OO

246

Nov.

4.6

4.5

4.6

4.8

5.0

4.8

4.6

4.6

4.5

5.1

6.3

6.3

BTO" 7.1

5.0

5.0

4.3

5.0

4.6

4.0

3.5

3.5

3.3

3.1

3.0

2.8

ST0

3.0

3.2

-

134.4

4.48

267

Dec.

3.0

3.0

3.0

3.0

2.8

2.8

4.3

37F

2.8

2.7

2.3

2.2

2.2

2.0 

575

2.0

2.2

2.0

2.0

2.0

2.0

2.2

2.2

2.3

2.2

2.3

2.2

2.2

2.0

2.0

2.0

75.5

2.44

150

Jan.

2.0

2.0

2.0

2.0

2.2

2.2

2.0

2.0

2.0

2.6

3.5

4.6

3.8

3.8

3.6

3.6

3.5

4.5

4.0

3.2

2.7

2.5

2.2

2.2

2.2

2.0

1.9

T7T

4.8

378

91.0

2.94

180

Feb.

3.5

ST0

2.7

2.5

2.3

2.2

2.0

2.0

1.9

1.9

1.9

1.7

1.7

1.6

l.b

1.6

1.6

1.4

1.4

1.4

1.7

1.9

1.7

1.7

1.7

3.2

2.8

_

_

-

5b.2

2.01

111

Mar.

3.3

573

3.2

2.8

2.7

2.5

2.5

2.3

2.2

2.0

2.0

1.9

1.7

1.7

1.9

1.9

1.6

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.6

1.6

1.4

1.3

1.1

59.6

1.92

118

Apr.

1.0

l!l

1.3

1.3

1.3

1.1

1.0

1.1

1.1

1.1

1.0

1.0

1.0

1.1

1.1

1.1

1.1

1.3

1.1

1.0

1.0

1.0

1.9

1.6

1.3

1.7

2.9

273

38.0

1.27

75

May

2.7

2.7

2.5

2.3

2.2

2.0

1.9

1.7

1.6

1.4

1.4

1.3

1.3

1.4

1.3

1.1

1.1

.8

_._§_

.6

.8

1.0

1.1

1.1

4.2

fc.2

T73

2.7

3.0

3.3

61.0

1.97

121

June

3.2

3.0

2.8

3.2

3.5

3.6

37F

3.0

2.7

2.2

2.2

2.0

2.0

1.9

1.7 

1.6

l.b

1.4

1.4

1.6

1.6

1.6

1.6

1.6

1.7

1.7

1.6

1.4

1.1

1.0

-

63.1

2.10

125

July

0.8

1.0

.8

.8

1.1

1.3

T70

.8

.8

1.0

1.0

1.0

1.0

.7 

. 8

.6

.3

.6

.6

.6

.5

.6

.6

.6

.6

.6

.5

.6

.5

.4

.3

22.4

0.72

44

Aug.

0.3

.4

.5

.5

.4

.3

.3

.3

.4

.5

.6

.5

.3

.3

_L! 

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.2

.3

.6

.775-

11.2

0.36

22

Sept.

0.6

.5

.6

.5

.6

.6

.6

.4

7F

.5

.6

.6

.7

.6

. 6 

.5

.5

.7

1.0

1.7

1,4

.7

.7

.6

.7

1.1

1.1

1.1

1.4

1.3

-

23.0

0.77

46

Calendar year 1950: Max 2O Mln 1.7 Mean 3.92 Ac-ft 2,840

Water year 1950-51: Max 7.1 Mln 0.2 Mean 2.O8 Ac-ft 1,500
LOS ANGELES RIVER BASIN

Halnes Creek near Tujunga, Calif.

Location.--Lat 34°15'50", long. 118°16'15", in NW^NW^ sec. 17, T. 2 N., R. 13 W., on right

DanK 0.5 mile upstream from mouth of canyon and 1.5 miles northeast of Tujunga. 

Drainage area. 1.2 sq mi, approximately. 

Kecoras available.--Creek: February 1917 to September 1934, October 1935 to September

January 1931 to September 1951. 

recorder and broad-crested weir. Altitude of gage is 2,430 ft (from

1951.

Diversion: 

Gage.--Water-sta^. .

Typographic map). 

Average discharge.--33 years (1917-34, 1935-51), 0.154 cfs; median of yearly mean discnarges, u.uvu cfs. Average combined dishcarge of creek and diversion, 19 years

(1931-34, 1935-51), 0.458 cfs; median of combined yearly mean discharges, 0.31 cfs. 

Extremes.--Maximum discharge during year, 0.1 cfs Apr. 25 (gage height, 1.11 ft);-no flow

most of year.

1917-34, 1935-51: Maximum discharge, 265 cfs Mar. 2, 1938 (gage height, 4.6 ft);

maximum gage height, about 11 ft Jan. 1, 1934 (caused by debris wave commonly called a

mud flow); no flow at times during many years. 

Remarks.--No flow during year except for a few hours on Apr. 25, 28 (daily discharge less

fl

|Ks_.--NO now during year except for a lew hours on Apr. ab, 28 (daily aiscnarge less 

:an 0.05 cfs each day). Discharge measurements generally made twice a month. Most of 

. ow diverted to two infiltration galleries upstream from station. Figures for calendar 

year 1950 are as follows: Maximum daily discharge, 0.02 cfs; minimum daily, zero; mean, 

0.002 cfs; runoff, 1.5 acre-ft. Monthly figures of diversion by Southern California 

Water Co. prior to July and by city of Los Angeles thereafter are given in the following table (data furnished by those agencies).

Month

September. ....................

Diversion 

(acre-feet)

2.0

50
LOS ANGELES RIVER BASIN 

Little Tujunga Creek near San Fernando, Calif.

109

Location La t 34 0 16'30", long. 118°22'20", in Tujunga Grant, on downstream side of Footrun boulevard Bridge, 4 miles east of San Fernando, Los Angeles County. 

Drainage area. 21.0 sq mi.

Hecoras available. December 1928 to September 1951. 

uage. water-stage recorder. Datum of gage is 1,067.89 ft above mean sea level (levels by

T7os Angeles County Flood Control District).

Average discharge.--23 years, 2.74 cfs; median of yearly mean discharge, 0.8 cfs. 

extremes. Maximum discharge during year, 13 cfs Jan. 11 (gage height, 3.40 ft); no flow

during most of year,

1928-51: Maximum discharge, 8,500 cfs Mar. 2, 1938; no flow for several months each

year.

Remarks. No diversion above station. 

(Joopera'tion. Records furnished by Los Angeles County Flood Control District, through

a. K. tiedger, chief engineer.

Discharge, In cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

0

0

0

0

0

0

o

.8

0

0

o

0

0

0

0

.5

0

0

0

0

0

0

0

0

0

1.4

0

0

2.7

0.09

5.4

Feb.

0

0

0

Mar.

0.1

0

0

0

o

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

o

0

0

0

0

0

o

0

0

0

0

0.1

0.003

0.2

Apr.

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

0

.9

.8

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

Calendar year 1950: Max 3.1 Mln 0 Mean 0.04 Ac-ft 25.7

Water year 1950-51 : Max 1.4 Mln 0 Mean 0.01 Ac-ft 9.0

Tujunga Creek below Hansen Dam, Calif.

Location.--Lat 34"15"31", long. 118°23'll", on right bank at lower end of outlet structure 

or Hansen Dam, in Ex Mission San Fernando Grant, in city of Los Angeles, 3 miles southeast of San Fernando, Los Angeles County.

Drainage area. 148 sq mi.

Kecoras available.--October 1940 to September 1951 in reports of Geological Survey. April 

la-iz to September 1940 (fragmentary) in annual reports of Los Angeles County Flood Control District.

Gage.--Water-stage recorder and sharp-crested weir. Datum of gage is 963.29 ft above mean 

sea level, datum of 1929 (Corps of Engineers bench mark). Prior to Aug. 25, 1944, water 

stage recorder 0.5 mile downstream at different datum.

Average discharge.--11 years (1940-51), 28.7 cfs; median of yearly mean discharges, 8.4 

crs.

Extremes. No flow during year.

1940-51: Maximum discharge, 1,780 cfs Jan. 23, 1943; no flow during parts of each 

year.

Remarks.--No flow since Mar. 9, 1950. Observations of no flow generally made once a week. 

FToF 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. Figures for the calendar year 1950 are 

as follows: Maximum daily discharge, 0.1 cfs; minimum daily, zero; mean, 0.002 cfs; 

runoff, 1.8 acre-ft.

Cooperation.--Gage-height record furnished by Corps of Engineers.
110 LOS ANGELES RIVER BASIN

Los Angeles River at Los Angeles, Calif.

Location. Lat 34°04 T 50", long. 118°13'35", on right bank near Figueroa Street, Los 

Angeles, 800 ft (revised) upstream from Arroyo Seco.

Drainage area.--510 sq mi-.

Records available.--October 1929 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 292.58 ft above mean sea level (levels by

 Eos Angeles County Flood Control District). Prior to May 26, 1938, at site 150 ft 

downstream at different datum. May 26, 1938, to Dec. 8, 1939, at site 350 ft downstream at different datum.

Average discharge.--22 years, 58.2 cfs; median of yearly mean discharges, 36 cfs.

Extremes.--Maximum discharge during year, 3,600 cfs Jan. 11 (gage height, 2.82 ft); mini-

 mum, 0.2 cfs Sept. 20.

1929-51: 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 capac-

 TEyT 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.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

Z

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17is

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

0.9

.9

.9

.9

1.2

1.2

1.2

.9

.9

.9

.8

TF

.8

.8

.9

.9

.9

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

~X5.2

.8

.9

1.2

35.6

1.15

71

Nov.

1.2

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.8

40T3-

1.5

.5 75"

10

34

6.2

.2

.2

.2

.2

.2

.2

.2

.9

.9

.9

-

126.4

4.21

251

Dec.

0.8

.8

.8

.9

.9

.9

.9

1.2

.9

2.0

 

11 .9

1.2

.7

TT

.7

.7

.8

.8

.8

.9

1.8

2.4

2.4

.9

1.5

2.4

2.9

3.8

5.6

6.1

-, 59.1

1.91

117

Jan.

6.1 370-

12

18

27

13

12

14

16

202

361

53

36

36

29

77

18

20

98

29

8.4

7.0

7.0

7.0

7.9

7.0

6.6

6.1

487 -SCr

14

1,724.1

55.6

3,420

Feb.

9.0

9.3

7.3

7.5

8.4

9.6

7.9

7.9

7.5

7.0

i^i

8.4

7.0

7.0

7.0

7.5

7.5

7.5

7.9

8.4

8.4

32

-BT 142

9.6

109

67

18

_

_

-

594.7

21.2

1,180

Mar.

~2T 204

14

8.4

8.4

10

9.6

10

11

12

11

11

12

12

12

11

7.9

5.2

4.7

4.3

i£.

3.8

3.8

3.8

3.8

5.2

4.3

3.8

3.8

4.3

4.3

449.2

14.5

891

Apr.

4.3

4.3

11

65

9.6

4.3

3.5

2.6

2.6

3.2

2.9

3.2

3.5

3.5

3.5

3.8

3.8

3.2

2.6

2.6

2.1

1.8 TTS"

2.1

99

30

8.4

201 -35"

21

-

595.2

19.8

1,180

May

13

TT

8.4

4.3

3.2

2.9

2.6

2.6

3.2

3.5

4.3

4.7

5.1

7.2

2.4

2.4

2.9

3.2

2.6

2.6

2.4

2.4

2.1

2.1

2.4

2.4

2.1

1.8

Z7T

1.8

1.8

115.5

3.73

229

June

1.8

1.8

T75- 1.5

1.8

2.1

2.4

2.6

2.4

2.1

1.8

2.6

3.2

3.2

3.5

3.2

2.9

2.6

2.9

2.9

3.2

3.2

3.2

3.2

3.2

4.3

4.7

37F

3.2

2.9

-

84.0

2.80

167

July

2.6

2.9

3.2

3.5 3~T

2.9

2.6

2.4

2.4

2.1

2.4

2.4

2.6

2.4

2.6

2.6

2.9

2.9

2.4

2.1

2.1

2.1

2.1

1.8 T75-

1.8

2.1

2.1

2.4

2.4

2.1

75.9

2.45

151

Aug.

2.4

2.6

2.6

2.9

2.4

2.1

2.4

2.4

2.4

2.6

3.2

3.5

27T

.8

ITT

.5

.4

.6

.9

.6

.5

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

61.0

1.97

121

Sept.

.1

.0

.0

.0

.0

.0

.0

.0

.0

.2

.2

.5

.8

2.1 ~76-

.6

.6

.6

.6

.6

.6

.5 76-

.8

.9'-

29.4

0.98

58

Calendar year 1950 : Max 804 Mln 0.3 Mean 9.61 Ac-ft 6,960

Water year 1950-51 : Max 487 Mln 0.5 Mean 10.8 Ac-ft 7,840
LOS ANGELES RIVER BASIN 111

Arroyo Seco near Pasadena, Calif.

Location. Lat 34 0 13'20", long. 118°10'40", 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 1951.

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 same site but 

different datum. Prior to Oct. 19, 1945, at datum 4.00 ft lower.

Average discharge. 37 years (1913-15, 1961-51), 9.71 cfs; median of yearly mean discharges, 5.7 cfs.

Extremes. Maximum discharge during year, 12 cfs Apr. 29 (gage height, 1.70 ft); no flow 

 Sept. 17-20.

1910-51: Maximum discharge, 8,620 cfs Mar. 2, 1938, from slope-area determinations; 

no flow at times during some years.

Remarks.--Records good except those for periods of backwater from debris or no gage-height 

record, which are fair. Discharge measurements generally made twice a month. Minor 

regulations at debris dam 1.5 miles upstream. No diversion above station.

Rating table, water year 1950-51, except period of backwater from rooks and debris 

(gage height, In feet, and discharge, In cubic feet per second)

0.48 

.6 

.7 1.6 

3.0

0.9

1.0

1.1

4.9 

7.2

Discharge, In cubic feet per second, water year October 1950 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.

0.3

.2

.2

.2

.2

.2

.1

7T

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.3

.4

7T

.2

.3

.3

5.8

0.19

12

Nov.

0.3

.2

.2

.2

.2

.2

.1

77

.2

.2

.3

.3

.4

.4

.3

.3

.3

.4

.7

7F

.4

.3

.3

.3

.3

.3

.3

.3

.4

.4

-

9.2

0.31

18

Dec.

0.4

T

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.7

7T

.7

.7

.7

16.6

0.54

33

Jan.

0.7 -7T

.7

.7

.7

.7

.7

.7

.7

.8

1.8

1.9

1.2

1.1

1.0

1.2

1.1

1.1

2.2

1.6

1.4

1.4

1.4

1.2

1.2

1.2

1.2

1.1

3.8

37TT

2.2

40.4

1.30

80

Feb.

2.1 IT?

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3 ITS'

1.3

1.3

1.4

1.4

1.4

1.4

1.6

1.6

1.7

1.6

1.8

1.9

1.8

_

_

-

42.1

1.50

84

Mar.

2.3 273"

1.9

1.9

1.9

1.9

1.8

1.7

1.8

1.8

1.7

1.6

1.4

1.6

1.4

1.4

1.4

1.3

1.2

1.2

1.2

1.2

1.3

1.2

1.1

1.1

1.0

T7T

1.0

1.0

1.0

45.6

1.47

90

Apr.

1.0

1.0

1.0

.9

.9

.9

.9

.8

.7

7F

.7

.7

.7

.7-.8

.8

.8

.8

.8

.9

C.9

C.9

0.9

cl.l

C4.8

02.2

cl.3

03.1

09.5

o57T

46.4

1.55

92

May

2.4

57T

1.6

1.3

1.6

1.3

1.1

1.0

1.1

1.1

1.1

1.0

.9

.9

.9

1.0

.9

1.0

1.0

1.0

1.1

1.1

1.1

1.1

1.1

1.0

1.0

.8

.7

7T

.7

34.7

1.12

69

June

0.7

.7

.7

.8

^

.9

.9

.9

.8

.7

.7

.7

.7

.7

.7

.7

.7

.6

.5

.5

.6

.5

.4

.4

.4

.4

a. 4

.3

.3

.2

-

18.4

0.61

36

July

0.3 x

.3

.3

.2

.2

.1

7?

.2

.2

.2

.2

.2

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

a. 2

6.0

0.19

12

Aug.

aO.2

a. 2

a. 2

a. 2

a. 2

a. 2

a.l

aTT

a.l

a.l

a.l

a.l

a.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.4

7T

.3

4.6

0.15

9.1

Sept.

0.3 ~^r

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

0

tr

0

0

.1.1.1.1

.2

-

4,1

0.14

8.1

Calendar year 1950: Max 30 Mln o.l Mean 1.76 Ac-ft 1,270

Water year 1950-51: Max 9.5 Mln 0 Mean 0.75 Ac-ft 543

Peak discharge (base, 150 cfs). No peak above base.

a No gage-height record; discharge estimated on basis of records for Santa Anita Creek near Sierra 

Madre.

o Backwater from rocks and debris.
lia LOS ANGELES RIVER BASIN

Los Angeles River near Downey, Calif.

Location.--lat 33°57'05", long. IIS'IO'SS", in San Antonio Grant, on downstream side of 

Firestone Boulevard Bridge, 1 mile upstream from Rio Hondo and 2.5 miles west of Downey, 

Los Angeles County.

Drainage area.--614 sq mi.

Records available.--March 1928 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 95.16 ft above mean sea level (levels by 

Eos Angeles County Flood Control District). Prior to Mar. 2, 1938, at site 2,000 ft 

downstream at different datum.

Average dis charge.--23 years, 94.7 cfs; median of yearly mean discharges, 58 cfs.

Extremes.--Maximum discharge during year, 5,480 cfs Jan. 11 (gage height, 2.25 ft); minimum daily, 7.5 cfs June 3.

1928-51: Maximum discharge, 79,700 cfs Mar. 2, 1938; no flow during 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.

Cooperation.--Records furnished by LOR Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In cubic feet per second, water year October 1950 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.

12

13

13

12

12

13

12

10

12

12

12

12

12

12

11

13

14

14

16

16

17

13

14

14

14

14

41

14

12

14

14

434

14.0

861

Nov.

14

14

15

14

13

12

12

12

13

13

12

12

127

85

15

12

12

20

149

46

17

14

12

12

14

12

14

14

14

14

759

25.3

1,510

Dec.

14

14

12

12

13

12

12

12

12

12

16

14

14

14

14

14

12

12

12

12

12

12

12

12

12

14

15

14

15

16

15

408

13.2

809

Jan.

16

22

28

28

54

29

24

28

32

460

620

187

70

56

47

280

41

49

287

65

34

20

22

22

22

20

20

20

898

143

47

3,691

119

7,320

Feb.

35

29

23

13

18

28

26

30

35

23

14

28

26

29

28

25

20

12

16

23

25

43

393

179

26

160

275

70

_

-

1,652

59.0

3,280

Mar.

"87 481

30

24

29

29

28

26

29

28

22

23

25

25

28

30

26

20

32

35

29

24

20

14

8.0

14

23

24

30

34

20

1,297

41.8

2,570

Apr.

10

23

52

268

43

32

26

14

20

29

28

28

28

24

14

18

28

30

29

28

19

14

23

25

311

110

43

364

280

43

-

2,004

66.8

3,970

May

40

34

29

24

16

12

17

20

29

29

20

15

10

~35" 162

28

26

24

15

10

17

17

17

17

16

13

8^5

12

14

12

12

750.5

24.2

1,490

June

14

12

7.5

12

16

19

19

22

15

9.5

12

14

17

20

28.

16

11

16

17

19

20

22

17

14

16

19

18

18

17

13

-

490

16.3

972

July

11

13

15

12

12

17

14

13

12

14

13

14

14

12

10

14

16

16

18

18

14

10

13

14

15

16

16

14

11

13

14

428

13.8

849

Aug.

15

15

16

14

12

13

14

15

16

16

12

11

14

14

14

16

14

14

11

14

16

17

15

16

13

10

12

11

60

23

18

491

15.8

974

Sept.

14

12

8.0

12

24

18

15

15

12

16

16

16

15

17

14

8.0

14

22

24

25_

22

15

9.0

13

16

17

17

22

18

10

-

476.0

15.9

944

Calendar year 1950 : Max 1,430 Mln 9.0 Mean 30.5 Ac-ft 22,100

Water year 1950-51: Max 898 Mln 7.5 Mean 35.3 Ac-ft 25,550
LOS ANGELES RIVER BASIN 113

Sawpit Creek near Monrovia, Calif.

Location. Lat 34°10'25", long. 117°59'20", in REijSW^ sec. 13, T. IN., R. 11 W., on left 

bank 0.1 mile downstream from Monrovia Creek, 0.3 mile downstream-from Sawpit Dam, and 

1.5 miles north of Monrovia.

Drainage area. 5.3 sq mi, approximately.

Records available. November 1916 to September 1951.

Gage. 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, 1938, to Oct. 29, 1938, 

water-stage 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.

Average discharge.--34 years (1917-51), 1.18 cfs; median of yearly mean discharges, 0.53 

cTs";Average combined discharge of creek and diversion, 34 years, 2.63 cfs; median of 

combined yearly mean discharge, 1.9 cfs.

Extremes.--Maximum discharge during year, 47 cfs Jan. 15 (gage height, 1.30 ft); no flow 

during most of year.

1916-51: Maximum discharge, about 2,000 cfs £pr. 7, 1926, estimated from flow of 

Rogers Creek; no flow during parts of most years.

Remarks. Records good. Discharge measurements generally made twice a month. Flow regulated by Sawpit flood-control reservoir (capacity, 320 acre-ft). Diversion by city of 

Monrovia from Monrovia Creek.

Discharge, in cubic feet per second, water year October 195O to September 1951

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

(t)

Oct.

0

0

0

36

Nov.

0

o

0

37

Dec.

0

0

0

44

Jan.

0

0

O

0

O

0

o

0

0

0

.3

0

0

0

li

6

4

4

5

1

.1

0

0

0

0

0

0

o

0

0

o

16.4

0.53

33

50

Feb.

0

0

O

47

Mar.

0

0

0

52

Apr.

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

o

0

.2

T?

.1

-

0.5

0.02

1.0

45

May

0

0

0

51

June

0

0

0

40

July

0

0

0

35

Aug.

0

0

0

33

Sept.

0

0

0

29

Calendar year 1950: Max 1.7 Min 0 Mean O.02 Ac -ft 13

Water year 1950-51: Max 14 Mln 0 Mean O.05 Ac -ft 34

t Diversion to Monrovia pipe line, in acre-feet (data furnished by City of Monrovia). Total diversion for calendar year 195O, 713 acre-ft; for water year 195O-51, 499 acre-ft.
114 LOS ANGELES RIVER BASIN

Santa Anita Creek near Sierra Madre, Calif.

Location. Lat 34°11'30", long. 118°01'00", In SW^NEi sec. 10, T. IN., R. 11 W., on right 

bank at head of Hermits Falls, 1 mile upstream from Big Santa Anita Dam and 4 raises 

northeast of Sierra Madre.

Drainage area. 10.5 sq mi.

Records available.--July 1916 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,475.3 ft (revised) above mean sea level 

(levels by U. S. Forest Service). Prior to Mar. 2, 1938, water-stage recorder at same 

site at datum 0.4 ft lower (destroyed by flood).

Average discharge.--35 years, 5.87 cfs; median of yearly mean discharges, 3.7 cfs.

Extremes.--Maximum discharge during year, 18 cfs Jan. 11 (gage height, 1.11 ft, from 

riooomark); minimum daily, 0.1 cfs during parts of several months.

1916-51: 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. 15, 1929.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Discharge measurements generally made twice a month. No diversion above station.

Rating table, water year 1950-51, (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 29 to Feb. 26, Mar. 15 to Apr. 25)

0.2 0.1

.3 .4

.4 1.0

0.5 2.0

.6 3.2

.7 5.0

Discharge, In cubic feet per second, water year October 1950 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.

0.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.272"

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.4

.9~X

.6

.5

.6

10.4

0.34

21

Nov.

0.6

.5

.4

rs

.4

'.e

.9

.7

.7

.7

.8

2.3

177

1.1

.9

.8

.7

.7

.7

.7

.7

.6

.6

-

21.0

0.70

42

Dec.

0.7 -77

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

 ' 6

.6

.6

.5

.5

.5

.5

.5

.5

.4

7T

.4

.5

.5

.5

.5

.4

17.7

0.57

35

Jan.

0.4 T5-

.6

.7

.7

.7

.7

.6

.6

.7

a4.5

aT75-

al

al

al

al

al

al

a2.5

al

al

1.1

1.0

1.0

.9

.9

.9

.9

2.4

1.9

1.4

35.1

1.13

70

Feb.

1.1

1.0

1.0

.9

.8

.8

.8

.8

.7

7T

.7

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.9

1.0

1.0

.9

1.0

1.5 ITS

_

-

24.1

0.86

48

Mar.

1.8

T77

.5

.4

.4

.4

.3

.3

.2

.3

.1

.0

.0

.0

.9

1.0

.9

.9

.8

.8

.8

.8

.7

7T

.7

.7

.7

.7

.7

.8

.8

31.8

1.03

63

Apr.

0.7

.7

.7

.9

1.0

.8

.8

.8

.7

.7

.7

.7

.6-X

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

2.0

1.6

1.1

2.9

4.6

273T

31.9

1.06

63

May

1.8 T7S"

.4

.2

.2

.2

.0

.0

.9

.8

.9

.8

.8

.9

.8

.8

.7

.7

.6

.6

.7

.7

.6

.6

.5

.4

7T

.4

.4

.4

.4

25.2

0.81

50

June

0.4

.3

.3

.3

.4

.4

.4

.575"

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3'.3

.3

11.6

0.39

23

July

0.3 73-

.3

.3

.3

.2

.1

7T

.1

.1

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.6

0.15

9.1

Aug.

0.1 -7T

.2

77

.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

.1

.1

3.7

0.12

7.3

Sept.

0.1 ~7X

^~

3.0

0.10

6.0

Calendar year 1950: Max 24 Mln 0.1 Mean 1.69 Ac-ft 1,230

Water year 1950-51: Max 4.6 Mln 0.1 Mean 0.60 Ac-ft 437

Peak discharge (base, 40 cfs). No peak above base.

a No gage-height record; discharge estimated on basis of high-water mark and records for Little 

Santa Anita Creek near Sierra Madre.
LOS ANGELES RIVER BASIN 115

Little Santa Anita Creek near Sierra Madre, Calif.

Location. Lat ^"ll'lS", long. 118 0 02'35", near center of NW£ sec. 9, T. 1 N., R. 11 W., 

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 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 2,200 ft (from topographic map). Prior to Apr. 7, 1926, water-stage recorder at same site but different 

datum (destroyed by flood). No gage in use Apr. 7 to Aug. 3, 1926.

Average discharge.--34 years (1916-25, 1926-51), 0.91 cfs; median of yearly mean discharge, 

u.52 crs.

Extremes. Maximum discharge during year, 3.2 cfs Jan. 11 (gage height, 0.95 ft); no flow 

during several months.

1916-51: Maximum discharge, 536 cfs Mar. 2, 1938, computed on basis of inflow to 

Sierra Madre flood-control reservoir; no flow during periods in some years.

Remarks.--Records good. Discharge measurements generally made twice a month. No diversion 

aoove station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.4 

.5 

.6 

.7

Discharge, In cubic feet per second, water year October 1950 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.

0.1

0

0

0

0

0

0

0

0

0

0

D

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

1

11

1

0.6

0.02

1.2

Nov.

0.1

.1

.1

0

0

0

0

0

0

0

0

0

.1.1.1

.1.1

.1

.4

7?

.1.1

.1

.1

.1

.1.1

.1

.1

.1-

2.5

0.08

5.0

Dec.

~7T 0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

a

.1

.1

.1

.1

.1

.1

.1

.1

*i

3.1

0.10

6.1

Jan.

0.1

.1.1

.1.1

.1

.1

.1.1

.1

.18

.2

.2

.2

.1

.2

.1

.2

.5

.2

.2

.2

.1

.1

.1

.1

.1

.2

.5

.3

.2

5.5

0.18

11

Feb.

~7z~ 0.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

_

_

-

4.1

0.15

8.1

Mar.

0.3

.~S~

.2

.2

.2

.2

.2

.2

.2

ti

7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.3

0.14

8.5

Apr.

~7T 0.1

.2

.2

.2

f

f

f 1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.4

.2

.1

.5

75

.3

-

4.7

0.16

9.3

Calendar year 1950; Max 3.0 Mln 0 Mean 0.25

May

Tz" 0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

ii

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1-

4.5

0.15

8.9

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

0-

2.9

0.10

5.8

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

AO-ft 185

Water year 1950-51: Max 0.5 Mln 0 Mean 0.09 Ao-ft 64

Peak discharge (base. 7.0 cfs). No peak above base.
116 LOS ANGELES RIVER BASIN

Eaton Creek near Pasadena, Calif.

Location. Lat 34°11'40", long. 118°06'15", in SE^ see. 2, T. 1 N., R. 12 W., On right 

banlc at mouth of canyon, Just upstream from bridge on old Mount Wilson toll road and 

4 miles northeast of Pasadena.

Drainage area.--6.5 sq mi, approximate.

Records available (revised). Creek: March 1918 to September 1951. Diversion: July 

1923 to septemoer 1951.

Gage. Water-stage recorder and broad-crested weir. Altitude of gage is 1,230 ft (from 

topographic map). Prior to Mar. 2, 1938, at site 75 ft downstream at different datum 

(destroyed by flood). Mar. 2, 1938, to Dec. 28, 1938, water-stage recorder at site 

75 ft downstream at different datum.

Average discharge. 33 years, 2.45 cfs; median of yearly mean discharges, 1.1 cfs. Average combined discharge of creek and surface diversion, 28 years, 3.63 cfs; median of 

combined yearly mean discharges, 2.4 cfs.

Extremes. Maximum discharge during year, 12 cfs Apr. 28 (gage height, 0.61 ft); no flov 

during most of year.

1918-51: Maximum discharge, 2,400 cfs Mar. 2, 1938, from record of inflow to Eator 

flood-control reservoir; no flow at times in each year.

Remarks.--Records fair. Discharge measurements generally made twice a month. City of 

Pasadena makes two surface diversions upstream from station, the combined totals of 

which are shown in the monthly table. In addition, they diverted 54 acre-ft from two 

infiltration galleries, one 800 ft upstream and the other 800 ft downstream from station

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.0 

.1 

.2 

.3

1.5 

3.0

Discharge, in cubic feet per second, water year October 1950 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

ftc-ft

(t)

Oct.

0

0

9.3

Nov.

0

0

11

Dec.

0

0

20

Jan.

0

0

0

0

0

0

0

0

0

0

.2

.4

0

0

0

0

0

0

.3

0

0

0

0

0

0

0

0

0

~n.7

0

1.8'

0.06

3.6

28

Feb.

0

0

34

Mar.

0

0

42

Apr.

0

0

0

0

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

1.2

2,4

.1

-

3.9

0.13

7.7

30

May

0

0

44

June

0

0

18

July

0

0

10

Aug.

0

0

7.8

Sept.

0

0

7.2

Calendar year 1950: Max 16 Mln 0 Mean 0.09 Ac-ft 66

Water year 1950-51: Max- 2.4 Mln 0 Mean 0.02 Ac-ft 11

Peak discharge (base. 55 cfs). No peak above base.

t Diversion by city of Pasadena, In acre-ft (data furnished by that city). Total for calendar 

year, 588 acre-ftj for water year 1950-51, 261 acre-ft.
LOS ANGELES RIVER BASIN 117

Rio Hondo near Montebello, Calif.

Location. Lat 34°01'55", long. 118°04'15", 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 mi (excluding area above Santa Fe Dam). 

Records available --October 1928 to September 1951.

Gage.--Water-stage recorder. Dauum of gage is 194.63 ft above mean sea level (levels by 

Eos Angeles County Flood Control District).

Average discharge. 23 years, 57.8 cfs; median of yearly mean discharges, 40 cfs.

Extremes.--Maximum discharge during year, 2,900 cfs Jan. 11 (gage height, 6.76 ft); mini-

 mum, 2.6 cfs Sept. 18 (gage height, 2.46 ft).

1928-51: Maximum discharge, 28,000 cfs Mar. 2, 1938; minimum, 0.3 cfs Dec. I, 1933.

Remarks. Flow regulated by Big Santa Anita, Sawpit, and Eaton flood-control reservoirs,

 (combined capacity, l,70fl 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.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through H. E. 

Hedger, chief engineer.

Revisions (water years).--W 844: 1938(M).

Discharge, in oubio feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

E

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

M?an

Ac- ft

Oct.

5.4

5.4

5.0 570-

5.4

5.4

5.4

5.8

6.2

5.8

5.8

5.0

5.0

5.4

5.8

6.2

6.2

6.2

5,8

6.2

6.6

5.8

6.2

5.8

6.2

7.5

39~7.0

6.6

5.7

5.4

214.2

6.91

425

Nov.

5.4

5.4

7.2

9.0

8.2

7.8

7.0

6.6

6.2

5.0

5.0

5.0

37

18

6.6

5.8

5.4

28

109 "~T.5

6.6

5.8

5.8

6.2

7.0

6.6

6.6

6.2

6.2

6.6

-

360.7

12.0

715

Dec.

6.6

6.6

6.6

6.2

6.2

6.2

6.2

6.6

6.2

5.8

5.8

5.8

5.8

6.2

7.0

6.6

6.6

6.2

6.6

7.0

7.9

777

7.5

7.3

7.2

7.0

6.8

6.6

6.6

6.6

6.6

204.6

6.60

406

Jan.

5.4

5.4

6.2

11

7.0

5.0

4.9 473-

5.0

111

245

18

16

15

15

62

7.0

24

115

8.6

7.8

7.8

8.2

7.4

7.0

8.6

7.4

7.0

355

TF

13

1,136.6

36.7

2,250

Feb.

11

9.0

8.2

7.8

7.4

7.0

7.0

6.6 B76-

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

7.0

13

70IE"

8.2

65

35

6.6

_

_

-

364.0

13.0

722

Mar.

 G.Z 116

7.4

7.8

7.8

8.2

7.0

7.4

7.0

8.2

7.4

7.0

6.6

6.6

6.2

6.6

7.0

6.6

6.6

6.2

6.2

6.6

6.2

6.2

5.8

5.4

5.4

5.4

5.4

5.4

5.0

314.8

10.2

624

Apr.

5.0

5.0

29

68

6.6

6.6

7.0

7.0

6.6

6.6

5.8

5.8

5.8

5.8

5.8

6.6

6.6

6.2

6.2

5.8

5.4

5.0

5.0

4.9

153 

8.6

6.6

294

TT

8.2

739.5

24.6

1,470

May

5.8

5.8

5.8

6.2

6.2

4.9

4.7

4.3

¥70- 4.0

4.3

4.1

4.2

39

T.O

5.0

5.4

5.0

4.6

4.6

4.4

4.3

4.1

4.0

4.1

4.3

4.5

4.7

4.8

5.4

5.4

182.9

5.90

363

June

5.4 570-

.8

.6

.7

.7

.7

.8

.7

.6

.3

.4

.3

.3

.3

.1

.1

.4

.1

.1

.1

.1

.1

.3

.1

.1

.2

.1

.1

.0

-

131. R

4.39

261

July

378- 4.0

3.9

3.8

3.6

3.6

3.5

3.6

3.6

3.8

3.8

3.9

3.8

3.8

3.7

3.6

3.4

3.4

3.4

3.4

3.5

3.5

3.6

3.7

3.8

3.5

3.4

3.3

3.3

3.2

37?

111.4

3.59

221

Aug.

3.2

3.1

3.2

3.1

3.1

2.8 373"

3.4

2.9

2.8

2.9

2.8

3.3

3.4

3.3

3.6

3.2

3.2

3.0

3.5

3.1

3.5

3.4

3.1

3.2

3.3

4.3

5.1

9.3 570-

4.1

110.5

3.56

219

Sept.

4.0

3.6

3.6

4.2

4.9

4.3

3.3

3.0

3.0

3.2

3.3

3.3

3.3

3.3

3.3

3.3

3.4

279" 2.7

3.0

3.1

3.2

3.3

3.5

3.5

3.6

3.3

3.5

3.7

3.5

103.1

3.44

204

Calendar year 1950 : Max 555 Mln 4.6 Mean 12.5 Ac-ft 9,020

Water year 1950-51 : Ma» 355 Mln 2.7 Mean 10.9 Ac-ft 7,880

25S498 O - 53 - 9
118 LOS ANGELES RIVER BASIN

Mission Creek near Montebello, Calif.

Location.--Lat 34°01'45", long. 118°04'07", in Paso de Bartolo Grant, on upstream side of 

right abutment of San Gabriel Boulevard Bridge, 2 miles northeast of Montebello, Los 

Angeles County.

Records available. October 1932 to September 1951 in reports of Geological Survey. OctoDer J.yay to September 1932 in reports of Los Angeles County Flood Control District. 

Prior to October 1945, published as Rio Hondo Slough near Montebello.

Gage. Water-stage recorder. Altitude of gage is 193 ft (from topographic map).

Average discharge. 21 years (1929-37, 1938-51), 18.4 cfs; median of yearly mean discharges, iv crs.

Extremes. Maximum daily discharge during year, 13 cfs on several days; minimum daily, 

5.3 cfs Aug. 2.

1929-51: Maximum discharge not determined, occurred Mar. 2, 1938; minimum, 4.8 cfs 

Oct. 4, 1935.

Remarks. Plow is almost entirely from ground-water seepage.

Cooperation. Records furnished by Los Angeles County Flood Control District, through H. E. 

Hedger, chief engineer.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

IS

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

8.5 BT5-

8.5

8.6

8.6

8.7

8.8

8.8

8.9

8.9

8.9

8.9

8.8

8.9

9.0

9.2

9.2

9.2

9.3

9.3

9.3

9.3

9.3

9.3

9.3

9.5

9.8

9.9

10

10

11

284.2

9.17

564

Nov.

11

11

11

11

11

10

10

10 9.9

10

9.9

9.9

9.9

10

10

10

10

11

11

11

11

11

11

1215-

12

11

11

11

11

-

320.6

10.7

636

Dec.

11

11

11

10

TO

10

10

11

11

11

11

12

12

13

IT

12

12

12

12

11

11

11

11

11

12

11

12

11

11

11

11

348

11.2

690

Jan.

11

11

11

11

10_

10

11

11

11

12

12

12

11

12

12

12

12

13ISIS

13

12

12

12

12

12

12

12

13

12

13

366

11.8

726

Feb.

13

I?

13

12

12

12

12

12

12

12

12

11

TT

11

11

11

11

11

11

11

11

11

11

11

11

12

12

12

_

_

-

324

11.6

643

Mar.

12

I?

12

12

12

12

12

12

12

12

11

11

11

11

10

10

10

10

10

10

10

10

11

11

11

11

11

11

11

11

11

343

11.1

680

Apr.

10

10

9.9

9.6

9.0

9.4

9.6

9.7

9.8

9.8

10

10

10

10

10

10

10

10

10

10

10

11

TT

11

11

1111

11

11

10-

304.8

10.2

605

May

10TO"

10

10

9.8

9.5

10

9.8

9.2

9.2

9.3

9.2

9.4

9.5

9.7

9.9

9.8

9.8

9.6

9.3

9.5

9.6

9.1

9.2

9.0

9.0

8.9

8.8

8.5

8.4

8.2

291.2

9.39

578

June

570" 8.1

8.0

.9

.9

.9

.9

.8

.7

.6

.5

.5

.5

.4

.4

.3

.5

.6

.7

.7

.8

.8

.7

.7

.6

.5

.4

.5

.2

.0

-

229.1

7.64

454

July

6.9 BTB6.3

6.2

6.0

6.0

6.1

6.1

6.2

6.2

6.2

6.4

6.2

6.2

6.2

6.1

6.0

5.9

5.8

5.7

5.6

5.5

5.4

574

5.4

5.4

5.4

5.4

5.4

5.4

5.4

183.0

5.90

363

Aug.

5.4

5.3

5.4

5.5

5.6

5.6

5.8

5.9

5.8

5.8

5.9

5.9

6.1

6.2

6.2

6.2

6.3

6.4

6.6

6.8

7.0

7.4

8.0

7.8

7.9

8.0

8.0

8.0

8.5

B7T

7.9

205.3

6.62

407

Sept.

7.7

TT

7.3

7.2

6.9

6.4

6.3

6.2

6.1

6.2

6.1

6.0

5.9

5.8

5.7

5.6

5.7

5.6

5.4

57T

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.6

5.7

-

180.3

6.01

358

Calendar year 1950: Max 19 Mln 7.5 Mean 11.4 Ac-ft 8,290

Water year 1950-51: Max 13 Mln 5.3 Mean 9.26 Ac-ft 6,700
LOS ANGELES RIVER BASIN 119

Rio Hondo near Downey, Calif.

Location.--Lat 33°56'40", long. 118°09 I 50", in San Antonio Grant, on downstream side of 

STewart and Gray Road Bridge, 0.5 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 1951.

Gage.--Water-stage recorder. Datum of gage is 89.91 ft above mean sea level (levels by 

Tios Angeles County Flood Control District).

Average discharge.--23 years, 29.1 cfs; median of yearly mean discharges, 10 cfs.

Extremes.--Maximum discharge during year, 1,080 cfs Jan. 29 (gage height, 5.65 ft); no flow 

during most of year.

1928-51: Maximum discharge, 24,400 cfs Mar. 3, 1938 (gage height, 13.5 ft); no flow 

during part of each year.

Remarks.--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.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

Z

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

0

0

Nov.

0

0

0

Dec.

0

O

0

Jan.

0

o

o

0

0

0

0

o

0

0

74

5.6

0

0

0

0

0

0

13

0

0

0

0

0

0

0

o

o

135

3.1

0

230.7

7.44

458

Feb.

0

0

0

Mar.

39

2.0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

o

0

0

0

0

0

o

0

0

0

0

0

0

0

0

41.0

1.32

81

Apr.

O

O

O

0

0

0

0

o

0

0

o

0

0

0

o

0

0

o

0

0

0

0

0

0

38

O

O

84

0

0

-

122

4.07

242

May

0

0

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 298 Mln 0 Mean 1.92 Ac-ft 1,390

Water year 195O-51: Max 135 Mln 0 Mean 1.08 Ac-ft 781
LOS ANGELES RIVER BASIN

Los Angeles River at Long Beach, Calif.

Location. --La t 33°47i25", long. 118°12'20", on downstream side of State Street Bridge at

 Long Beach, Los Angeles County, 1.7 miles (revised) upstream from mouth.

Records available. December 1928 to September 1951.

Gage . - -Water-stage recorder. Datum of gage is 0.90 ft above mean sea level (levels by Los

 Ingeles County Flood Control District). Prior to Oct. 31, 1931, at site 1 mile upstream at different datum.

Average discharge. 22 years (1929-51), 144 cfs; median of yearly mean discharges, 94 cfs.

Extremes . Maximum discharge during year, 9,040 cfs Jan. 29 (gage height, 7.37 ft); mini-

 mum, 3.8 cfs Oct. 23 (gage height, 2.29 ft).

1928-51: Maximum discharge, 99,000 cfs Mar. 2, 1938; no flow at times in 1929, 1930, 

1934.

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.

Cooperation. --Records furnished by Los Angeles County Flood Control District, through H. E. 

Hedger, chief engineer.

Discharge, in cubic feet per second, water year October 1950 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.

13

12

11

11

11

11

11

10

7.5

8.2

8.8

10

9.4

10

11

6.9

6.9

11

11

11

11

10

5.6

5TT

10

11

14

T2- 39

8.8

8.8

338.2

10.9

671

Nov.

10

11

11

12

10

7.5 12 

13

10

11

11

11

56

~W302

20

16

18

71

234

35

20

20

17

17

17

14

16

16

15

-

1,072.5

35.8

2,130

Dec.

14

13

12

11

10

9.0

8.1

8^

8.6

8.9

9.2

9.5

9.8

10

9.9

9.8

9.6

9.4

9.2

9.1

9.0

9.4

9.8

10

11

11

12

12

14

16

19_

331.6

10.7

658

Jan.

22

2T

26

28

48

40

28

26

32

550

647

534

151

107

89

381

163

62

380

132

86

64

42

32

28

28

28

28

1,610 505"

183

6,105

197

12,110

Feb.

46

43

40

37

33

30

27

24

2T

25

25

26

26

27

27

27

26

26

26

25

25

25

493

TT8- 914

69

507

100

_

_

-

2,841

101

5,640

Mar.

607

1ST

30

30

30

30

30

30

31

31

32

32

33

33

34

32

30

28

26

24

22

20- 20

21

21

21

21

22

22

22

22

1,556

50.2

3,090

Apr.

22

5?

22

 1,110g?

44

46

35

31

29

27

25

25

25

24

24

24

23

23

23

23

23

23

23

172

460

151

164

807

143

-

3,655

122

7,250

May

53

48

36

35

34

33

32

31

30

29

29

29

29

~84 130

66

16

16

17

17

18

18

19

19

18

17

16

15

14

13

ii

973

31.4

1,930

June

12T2-

12

13

13

13

13

14

14

15

15

16

17

18

TS

18

17

17

17

16

16

16

16

16

15

15

15

15

15

14

-

453

15.1

899

July

14

14

13

13

12

12

12

12

12

13

13

13

14

14

15

16

16

17

17

18_

17

15

14

13

11

10TO"

11

11

12

12

416

13.4

825

Aug.

13

13

13

12

12

12

12

11

11

11

12

12

13

13

ii

14

14

13

12

12

11

10

10 9.7

10

11

12

12

13

13

13

373.7

12.1

741

Sept.

12

12

11

11

1C

1C

1C

1C

1C

1C

10

10

10

10

11

12

13

14-

15

il

16

15

14

13

12

11

11

11

11

12

-

353

11.8

700

Calendar year 1950: Max 2,360 Min 5.6 Mean 43.4 Ac-ft 31,420

Water year 1950-51: Max 1,610 Min 5.6 Mean 50.6 Ac-ft 36,640
BALLONA CREEK BASIN 121

Ballona Creek near Culver City, Calif.

Location.--Lat 33°59'50", long. 118°24'10", in La Ballona Grant, on downstream side of

 Sawtelle Boulevard Bridge, 1.5 miles south of Culver City, Los Angeles County.

Drainage area. 88.6 sq mi (revised), excludes that of Sepulveda Creek. Prior to January 

I9jji, 111 sq mi; change due to tributary channel realignment.

Records available. February 1928 to September 1951 (after December 1950, flow of Sepulveda 

ureeK 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.

Extremes. Maximum discharge during year, 5,460 cfs Jan. 10 (gage height, 10.13 ft); mini-

 mum daily, 0.7 cfs Jan. 28.

1928-51: Maximum discharge, 19,000 cfs Mar. 2, 1938; no flow during parts of some 

years.

Remarks. Occasional discharge of imported Owens River water from several storage reser-

 voirs of the Los Angeles Department of Water & Power into the creek above the station. 

Some small pumping diversions above station for irrigation.

Cooperation. Records furnished by Los Angeles County Flood Control District, through H. E. 

Hedger, chief engineer.

Revisions (water years). W 881: 1938.

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

4.2 T7B~

7.8

9.2

10

11

11

9.2

10

11

7.0

7.8

12

12

7.8

7.8

11

8.5

8.5

10

9.2

9.2

11

9.2

8.5

34

~ir 231

5.6

7.0

7.0

527.3

17.0

1,050

Nov.

7.8

10

12

10

8.5

17

51

60

66

68

64

55

-53T 662

64

49

22

17

Z6Z

32

14

13

8.5

9.2

5.6

4.9

7.0

18

4.2

11

-

1,685.7

56.2

3,340

Dec.

4.9

8.5

2.8

tt

14

10

15

13

6.3

4.9

12

15

15

14

19

8.5

10

26

35

IF

19

14

12

10

6.3

21

12

11

12

6.3

4.2

385.3

12.4

764

Jan.

4.2

14

14

110

24

7.8

5.6

8.5

8.5

438

354

10

4.2

3.5

6.3

258

14

190

222

6.3

2.1

3.5

4.9

3.5

6.3

4.2

3.5

.7

756 

 T.8

7!o

2,502.4

80.7

4,960

Feb.

6.3

5.6

5.6

4.9

7.0

7.8

7.0

4.9

4.9

4.2

3.5

6.3

4.9

5.6

4.9

6.3

3.5

2.8 375-

5.6

7.0

51

384 ~S5-

5.6

256

100

8.5

_

_

-

1,002.2

35.8

1,990

Mar.

~?.2 317

6.3

14 3.5 

12

4.2

4.9

7.8

4.9

4.2

5.6

9.2

7.0

7.8

8.5

8.5

5.6

7.0

7.8

7.0

6.3

7.0

6.3

5.6

6.3

6.3

6.3

8.5

12

8.5

535.1

17.3

1,060

Apr.

7.0

9.2

102

289

9.2

6.3

4.9 4T9"

7.8

7.0

6.3

6.3

9.2

7.0

4.9

6.3

7.0

6.3

6". 3

7.0

6.3

7.0

10

9.2

282

7.8

15

558 ~77

11

-

1,497.2

49.9

2,970

May

10

8.5

9.2

7.8

5.6

4.2 579-

6.3

11

24

6.3

6.3

4.9

115 ~5.6

4.9

5.6

6.3

8.5

6.3

7.8

7.8

8.5

7.8

7.8

7.8

5.6

8.5

8.5

5.6

6.3

343.2

11.1

680

June

7.0

6.3

6.3

6.3

5.6

5.6

6.3

7.8

7.8

6.3

7.0

7.8

7.0

8.5

8.5

7.8

5.6

7.0

7.0

7.0

6.3

7.8

12~B".3

7.0

7.8

10

7.8

9.2

8.5

-

221.2

7.37

439

July

6.3

7.0

7.0

5.6 775"

6.3

7.0

6.3

10

8.5

8.5

7.8

10

8.5

7.8

15

9.2

10

11

13

12

7.8

11

8.5

8.5

18IB7.8

6.3

10

10

288.5

9.31

572

Aug.

10

10

10

7.0

6.5

7.0

7.8

7.0

8.5

9.2

7.8

6.3

8.5

7.8

7.0

7.8

10

10

7.8

9.2

10

11

8.5

8.5

7.8

6.3

7.8

8.4

40~B".3

6.3

285.9

9.22

567

Sept.

6.3

4.9

3.5 9T2"

7.0

7.8

5.6

5.6

4.9

7.0

7.0

7.8

6.3

8.5

8.5

7.8

8.5

10

12"5". 5

10

9.2

7.8

7.8

7.8

8.5

10

11

10

7.8

-

236.6

7.89

469

Calendar year 1950: Max 1,330 Min 1.4 Mean 27.6 Ac-ft 20,010

Water year 1950-51: Max 756 Min 0.7 Mean 26.1 Ac-ft 18,860
122 TOPANGA CREEK BASIN

Topanga Creek near Topanga Beach, Calif.

Location. Lat 34°03 I 50", long. 118°35 I 10", in Boca de Santa Monica Grant, on downstream 

side of right abutment of highway bridge, 2 miles north of Topanga Beach, Los Angeles 

County.

Drainage area.--17.9 sq mi.

Records available. January 1930 to September 1938, October 1939 to September 1951.

Gage. Water-stage recorder. Datum of gage is 265.60 ft above mean sea level (levels by 

 Eos Angeles County Flood Control District). Prior to June 5, 1940, at same site at different datum. June 5, 1940, to Dec. 9, 1941, at site 400 ft upstream at different datun.

Average discharge.--20 years (1930-38, 1939-51), 5.34 cfs; median of yearly mean discharges, 

2.1 crs.

Extremes.--Maximum discharge during year, 21 cfs Jan. 11 (gage height, 3.09 ft); minimum 

dally, 0.01 cfs on several days.

1930-38, 1939-51: Maximum discharge, 7,960 cfs Mar. 2, 1938; no flow at times.

Remarks. No diversion above station.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

ti. k. Hedger, chief engineer.

Discharge, in cubic feet per second, water year October 1950 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.

0.06

.05

.06

.04

TOT

.06

.06

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.07

.08

.08

.08

.08

.1

.2

.5

72T

.2

.1

.1

3.0

0.097

6.0

Nov.

0.08

.07

.06

.04

.04

.02

TOT

.04

.06

.06

.04

.03

.5

7?

.1

.1

-

2.96

0.099

5.9

Dec.

0.1

TT

.1

.1

.1

.07

.07

.07

.07

.06

.06

.06

.07

.07

.07

.07

.07

.07

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.07

.07

.07

2.39

0.077

4.7

Jan.

0.07

!08

.1

.1

.08

.08

.08

.07

.2

2.4' ~76"

.2

.2

.2

.2

.2

.3

1.1

.4

.3

.3

.2

.2

.2

.2

.2

.1

1.8

.5

.2

10.93

0.353

22

Feb.

0.2

.2

.2

.1

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.4

.3

.3

.3

.573"

_

-

4.6

0.16

9.1

Mar.

0.9

'.2

.2

.2

.2

.1

.1

.1

.1

.1

.08

.07

TOT

.07

.08

.08

.08

.07

.07

.07

.07

.07

.07

.08

.08

.08

.08

.08

.1

.1

4.15

0.134

8.2

Apr.

0.1

.1

.1

.2

.2

.2

.1

.1

.1

.1

.08

.08

.08

.08

.08

.06

.06

.06

.06

.06

.06

.05

.04

TOF

.1

.07

.05

1.2J5~

.1

-

4.22

0.141

8.4

May

0.1 ~7T

.08

.08

.08

.07

.07

.07

.07

.07

.07

.05

.05

.05

.05

.04

.04

.03 T03"

.03

.03

.03

.03

.03

.03

.04

.04

.04

.04

.05

.05

1.64

0.053

3.3

June

0.06 ~TOF

.05

.04

.04

.05

.05

.05

.04

.05

.03

.04

.05

.05

.04

.04

.04

.05

.05

.04

.04

.04

.04

.05

.04

.04

.04

.04

.05

.04

-

1.28

0.045

2.5

July

0.04

.04

.05

TOT

.05

.05

.02 T02~

.02

.05

.02

.02

.02

.02

.02

.05

.05

.05

.02

.05

.05

.05

.05

.02

.02

.02

.02

.02

.03

.05

.05

0.84

0.027

1.7

Aug.

0.02

.02

.02

.02

.01

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.01

.01

.01

.01

.01

.04 T03"

.02

0.59

0.019

1.2

Sept.

0.02

.02

.02

.02

.02

.02

.03

.0*

TOT

.02

.02

.02

.02

.02

.02

.02

.03

.02

.02.

.02.

.01

TOT

.02

.01

.02

.02

.02

.02

.03

.03

-

0.63

0.021

1.2.

Calendar year 1950: Max 35 Min 0.01 Mean 0.418 Ac-ft 302

Water year 1950-51: Max 2.4 Min 0.01 Mean 0.102 Ac-ft 74
MALIBU CREEK BASIN 123

Malibu Creek at Crater Camp, near Calabasas, Calif.

Location.--Lat 34°04'30", long. 118°42'10", in SW^ sec. 18, T. IS., R. 17 W., on right 

bank 0.2 mile dovmstream from Crater Camp and 6 miles southwest of Calabasas.

Drainage area. 103 sq mi.

Records available. January 1931 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 430.51 ft above mean sea level (levels by 

Tbs Angeles County Flood Control District).

Average discharge. 20 years, 19.3 cfs; median of yearly mean discharges, 7.2 cfs.

Extremes.--Maximum discharge during year, 2.9 cfs Jan. 11 (gage height, 4.45 ft); no flow 

on many days.

1931-51: Maximum discharge, 12,200 cfs Jan. 22, 1943 (gage height, 18.31 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, through 

H. Ji. Hedger, chief engineer.

Discharge, In cubic feet per second, water year October 1950 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

51

Total

Mean

Ac-.ft

Oct.

0.1

!os

.06

3.04

0.098

6.0

Nov.

0.06

.04

TOT

.04

.04

.06

.06

.06

.06

.04

.04

.06

.1

TT

.1

-

2.4

0.080

4.8

Dec.

0.1

!i.1.1

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.06

TOT

.06

.06

.06

.06

.06

.06

.08

2.42

0.078

4.8

Jan.

0.08

.08

.08

.08

.08

.08

.06

.06

.04

.3"71

.08

.08

.08

.08

.06

.08

.1

.1

.1

.1

.1

.08

.08

.08

.1

.1

.3

.2

.2

3.24

0.105

6.4

Feb.

0.2 %

.2

.2

.2

.2

.2

.2

.2

.2

_

_

-

4.4

0.157

8.7

Mar.

0.3 ~3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.08

.08

.08

.1

.1

.08

.06

.06

.06

.06

.08

.08

.08

3.5

0.113

6.9

Apr.

0.08

.08

.08

.1

- 1

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.08

.06

 1

.1

.1

.3T2~

.2

-

3.04

0.101

6.0

May

0.

j_

.08

.06

TOT

3.3

0.106

6.5

June

0.1

.06

.08

.08

.08

.08

.08

.08

.1

TT

1 8

!os

.08

.06

.04

TOT

.04

-

2.56

0.085

5.1

July

0.04

^OT

.04

.04

.04

.04

.04

.03

.03

.02

.02

.02

.02

.02

.01

.01

0

<T

0

O

0

0

0

0

0

0

0

0

0

o

o

0.46

O.O15

0.9

Aug.

0

0

0

Sept.

-

0

o

0

Calendar year 1950 : Max 64 Mln 0.02 Mean 0.666 Ac-ft 481

Water year 1950-51 : Max 0.3 Mln 0 Mean 0.078 Ac-ft 56
124 SANTA CLARA RIVER BASIN

Santa Clara River near Saugus, Calif.

Location. Lat 34°25'30", long. 118°35'10", in San Francisco Grant, on downstream side of 

bridge on U. S. Highway 99, 3 miles west of Saugus, Los Angeles County.

Drainage area.--410 sq mi (revised).

Records available.--October 1929 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 1,038.24 ft above mean sea level (levels 

5y Los Angeles County Flood Control District). Prior to Sept. 21, 1938, at site 1,000 

ft downstream at different datum.

Average discharge.--22 years, 15.7 cfs; median of yearly mean discharges, 4.5 cfs.

Extremes. Maximum discharge during year, 6.2 cfs Jan. 29 (gage height, 5.93 ft); minimum 

daily, 0.02 cfs on many days.

1929-51: Maximum discharge, 24,000 cfs Mar. 2, 1938; no flow at times in 1933, 

1935-38.

Remarks. Some flow diverted above station for irrigation near Lang. At times water is 

released to river above station from city of Los Angeles' Owens Valley aqueduct blow-off 

at river crossing.

Cooperation.--Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer.

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

1G

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

0.4

.4

.2

.2

.2

.2

.1

1.2

2.0

ITS

.5

.4

.2

.2

.2

.2

1.0

1.1

.2

.1

.1

.2

.2

.1

.2

.4

.8

.5

.4

.4

.2

13.8

0.45

27

Nov.

oa

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.4

.4

.4

.4

.4

.4

.2

.4

.4

.2

.2

.2

-

6.6

0.22

13

Dec.

0.2

.1

.1

.1

.1

.1

.1

. 2

!i

.2

.2

.2

.2

.2

^

.5

.4

.4

.4

.4

.4

.2

.1

.1

.1

.2

.4

.4

.2

.2

.2

7.2

0.23

14

Jan.

o..

.6

.7

.5

1.2

.6

.5

13.3

0.43

26

Feb.

0.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.5

.5

.4

.6

.6

.8

.7

.7

.8

1.1

1.2

_

_

-

17.0

0.61

34

Mar.

1.5

.6

.5

.6

.7

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.7

.7

.6

.6

.6

.5

.5

.5

.5

.6

.6

20.6

0.66

41

Apr.

0.6

.6

.6

.7

.7

.7

.5

.6

.6

.6

.5

.5

.5

.5

.6

.6

1.0

1.0

.4

.2

.2

.2

.1

.2

.9

.7

.5

.8

.6

.5

-

16.7

0.56

33

May

0.5

.5

.5

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

TT

.2

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

7.0

0.23

14

June

0.2

.2

.2

.5

.5

.4

.2

.2

.2

,2

.09

.09

.09

.09

.09

.1

.09

.2

.1

.09

.09

.09

.1

.09

.09

.09

.07

^05

.05

.05

-

4.60

0.153

9.1

July

0.05

.07

.07

.07

.07

.1

.05

.03

.05

.07

.07

.05

.05

.05

.05

.04

.04

.04

.04

.04

.03

.03

.03

.03

.02

.02

.02

.02

.02

.02

.02

1.36

0.044

2.7

Aug.

0.02

.02

.02

.02

.02

.03

.03

.03

.03

.03

.04

.04

.04

.04

.05

.05

.05

.04

.04

.04

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

1.01

0.033

2.0

Sept.

0.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.03

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

-

0.76

0.025

1.5

Calendar year 1950; Max 5.2 Min 0.1 Mean 1.04 Ac-ft 753

Water year 1950-51: Max 2.0 mri °.°2 Mean O.301 Ac-ft 217
SANTA CLARA RIVER BASIN 125 

Piru Creek near Piru, Calif.

Location. Lat 34°25'30", long. 118°45'45", in southern part of Temescal Grant, on right 

bank 1.8 miles northeast of Piru, Ventura County, and 2 miles upstream from mouth.

Drainage area. 432 sq mi.

Records available.--October 1911 to September 1913, October 1927 to September 1951. Pubiished as "at Piru" 1927-34.

Sage.--Water-stage recorder and broad-crested weir. Altitude of gage is 780 ft (from 

topographic map). Oct. 28, 1911, to Sept. 5, 1913, staff gage at about same site at 

different datum. Oct. 1, 1927, to Sept. 30, 1934, water-stage recorder at site 1.75 

miles downstream at different datum. Oct. 1, 1934, to Sept. 30, 1940, water-stage 

recorder at site 60 ft downstream at different datum. Datum lowered 2.00 ft Feb. 20, 

1939.

Average discharge.--24 years (1927-51), 58.9 cfs; median of yearly mean discharges, 31 cfs.

Extremes. Maximum discharge during year, 30 cfs Jan. 11 (gage height, 0.60 ft); minimum 

daily, 0.5 cfs on several days.

1911-13, 1927-51: Maximum discharge, 35,600 cfs Mar. 2, 1938, from rating curve 

extended above 750 cfs on basis of slope-area determination of peak flow; no flow at 

times during 1928-34.

Remarks.--Records good except those for periods of indefinite stage-discharge relation; 

which are fair. Discharge measurements generally made twice a month. Doheny ditch 

diverts water for irrigation above station.

Cooperation.--Ventura County Water Survey furnished 17 discharge measurements.

Rating table, water year 1950-51, except periods of indefinite 

stage-discharge relation, (gage height, in feet,

and discharge, In cubic feet per second)

(Shifting-control method used Mar. 25 to Apr. 28,

June 24 to July 5)

0.04 

.1 

.2

Discharge, In cubic feet per second, water year October 1950 to September 1951

0.5 

2.2 

6.5

0.3 

.4 

.5

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

1.0

.7

.7

1.0

1.2

.7

1.2

1.5

1.0

1.0

.5 170-

1.0

.7

.7

.7

.5

.5

.5

.7

.7

.7

.7

1.2

1.5

3.4 T79-

1.9

1.9

1.9

33.6

1.08

67

Nov.

1.9

1.9

1.9

1.9

2.2

2.2

2.2

2.2

2.2

2.2

2.6

2.6

3.4

3.4

2.6

2.2

2.6

3.0

3.8

3-7CT

1.9

1.5

1.2 T72-

1.5

1.9

2.2

2.2

2.2

2.2

-

68.0

2.27

135

Dec.

2.6 576"

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.2

2.6

2.6

2.6

2.6

2.2

£.2

2.6

2.6

2.2

2.2

2.2

2.2

2.2

T79- 1.9

1.9

2.2

74.9

2.42

149

Jan.

1.9 179"

2.2

2.2

2.6

2.2

2.2

1.9

2.2

6.6

9.6

10

7.5

5.5

4.6

4.6

5.0

7.0

12

T.O

5.5

4.6

4.6

4.2

4.2

 

4.2

4.2

4.6

9.4

9.5

7.5

161.2

5.20

320

Feb.

6.0

5.5

5.5

5.5

5.5

5.5

5.0

5.5

6.0

6.5

6.5

6.5

6.0

5.5

4.6

5.0

5.0

5.0

5.0

5.0

5.0

5.5

9.5

13

12

12

17

TT

_

-

197.6

7.06

392

Mar.

20

Iff

15

13

11

10

10

10

10

10

9.0

8.5

8.0

7.5

7.0

7.0

7.0

6.5

6.0

6.0

6.0

6.0

6.5

6.5

6.0

5.5

5.0

5.0

5.0

4.6 ?7B260.2

8 -.39

516

Apr.

4.2

4.2

4.2

4.6

5.0

5.5

5.0

4.2

3.4

3.4

5.0

4.2

4.2

4.2

5.5

4.6

3.0

3.0

3.4

3.4

3.4

2.2

1.5

1.2 374"

4.2

3.8

5.0

12TO"

-

130.9

4.36

260

Calendar year 1950: Max 235 Mln 0.5 Mean 8.98

May

8.0 T75-

6.0

6.0

5.5

6.0'

5.5

4.6

5.0

2.6

3.0

5.5

6.0

4.6

2.6

3.0

2.6

3.4

2.6

2.6

2.2

2.2

1.9

1.9

1.9

1.9

1.9

1.9

1.5 370-

3.4

116.3

3.75

231

June

3.0

3.0

2.6

3.0

2.6

2.6

1.5

1.2

1.0

1.5

1.9

175- .7

2.2

2.2

2.6

3.8

4.2

27?

3.0

1.9

2.6

2.6

2.6

2.2

1.5

2.6

2.6

2.6

1.9

69.4

2.31

138

July

1.5

1.9

2.2

2.2

2.2

2.2

3.0

3.0

2.6

1.9

2.6 2.2-

1.5

1.5

1.2

1.0

.7 170-

1.0

1.0

1.2

1.5

3.4 T79-

2.2

1.5

1.2

1.2

1.2

1.0

1.0

53.7

1.73

107

Aug.

0.7

.7

.7

1.0

TTCr

.7

.5

7T

1.0

1.0

1.0

.7

.7

.5

.7

.7

.7

. .7

.7

.7

.7

.7

. .7

.7

.7

.7

e.7

e.7

e.7

e.7

.7

22.8

0.74

45

Sept.

eO.7

e.7

e.7

e.7

e.7

el.O

el.O

el.O

el.O

el.O

el.O

1.0

.7

.7

.5

.7

.7

.7

1.0

.7

1.0

1.0

1.0

1.0

1.0

1.2

re

1.2

1.2

1.2

-

27.2

0.91

54

Ac-ft 6.510

Water year 1950-51: Max 20 Mln o.5 Mean 3.33 Ac-ft 2^410

e Stage-discharge relation Indefinite; discharge estimated on basis of 2 discharge measurements 

and weather records.
126 SANTA CLARA RIVER BASIN

Creek near Piru, Calif.

Location. Lat 34°23'55", long. 118°49'40", on south line of NW£ sec. 25, T. 4 N., R. 19 

W., on downstream side of center pier of highway bridge, 1 mile upstream from mouth and 

2 miles southwest of Piru.

Drainage area. 23.0 sq mi.

Records available.--October 1930 to September 1932, October 1933 to September 1936, October 1337 to September 1951.

Gage.--Water-stage recorder.

Average discharge. 19 years, 5.27 cfs; median of yearly mean discharges, 2.4 cfs.

Extremes.--Maximum discharge during year, 18 cfs Jan. 19; no flow for several months.

1730-32, 1933-36, 1937-51: Maximum discharge, 8,000 cfs Mar. 2, 1938; no flow for 

several months during most years.

Cooperation. Records furnished by Ventura County Water Survey.

Discharge, In cubic feet per second, water year October 195O 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.

0

o

0

Nov.

0

0

O

Dec.

0

0

0

Jan.

0

0

0

0

0

0

0

0

0

.1

1.8

2.7

.2

0

0

.1

0

.9

5.7

.9

.5

.2

.2

.1

.1

.1

.2

.2

2.5

2.3

.9

19.7

0.64

39

Feb.

0.4

.4

.4

.4

.4

.3

.2

72

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

3.2

1.3

1.5

1.2

3.4

3.8

_

-

20.1

0.72

40

Calendar year 1950 : Max lol Mln o

Mar.

5.1

4.2

2.4

1.3

1.1

1.1

1.0

.8

.7

.6

.5

.4

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

23.7

0.76

47

Apr.

0.2

.1

.2

.3

.2

.2

.2

.2

.1

.1

.1

.1

O

O

0

o

0

0

0

o

o

0

o

o

.2

.1

o

1.1

2.3

.3

6.0

0.20

12

Mean O.94

May

0.2

.2

0*

0

0

0

0

o

o

o

o

0

0

0

0

0

0

0

o

0

0

o

0

0

0

0

0.9

O.03

1.8

June

o

0

0

July

0

0

o

Aug.

0

O

o

Sept.

0

o

o

Ac-ft 682

Water year 1950-51 : Max 5.7 Mln o Mean 0.19 Ac-ft 140
SANTA CLARA RIVER BASIN

Sespe Creek near Wheeler Springs, Calif.

Location. Lat 34°34'40", long. 119°15'25", in SWfewi 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, approximate.

Records available. July 1948 to September 1951.

Gage. --Water-stage recorder. Datum of gage is 3,500.65 ft above mean sea level (levels by 

Venture County Water Survey) .

Extremes . --Maximum discharge during year, 16 cfs Mar. 1 (gage height, 3.04 ft); no flow on 

many days.

1948-51: Maximum discharge, 53 cfs Feb. 6, 1950 (gage height, 3.56 ft); no flow on 

many days in 1951.

Remarks . --Records good. Discharge measurements generally made once a week. No diversions 

afeove station.

Cooperation. Gage-height record and 39 discharge measurements furnished by Ventura County 

Waater Survey.

Rating table, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Mar. 1-10, Apr. 26 to May 6)

2.2

2.3

2.4

2.5

2.6

.3 

1.0 

2.3 

4.3

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

6

7

8

9

 o

"1

12

' 5

H'5

 s

17'S

'9

20

'21

122 '23

24

25

26

27

28

29

50

51

"\jtal

"f^an

Ac- ft

Oct.

0.1

0

0

0

0

.1

0

o

0

o

0

0

o

0

o

0

B

o

0

0

1.4

0.05

2.8

Nov.

O

o

0

0

o

o

o

o

o

0

.1.1

"7T 2

.1

.1

.1

.1

.2

.2

:1.1.1.1.1

.1.1.1.1

M2.3

O.O8

4.6

Dec.

0.1 

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.3

 ±

.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.4

7.1

0.23

14

Jan.

0.4

.4

.4

.4

.4

.4

.5

.5

.5

.8

.8

.5

.4

.6

.7

.6

.6

.7

.9

.7

.6

.6

.6

.5

.5

.5

.4

.4

1.0

.6

.5

17.4

0.56

35

Feb.

0.5

.5

.6

.6

.6

.6

.4

.4

.4

i4

.5

.5

.6

.6

.6

.6

.5

.5

.5

.5

.6

.7

2.0

1.0

1.0

1.1

1.1

.9

_

_

-

18.8

0.67

37

Mar.

2.6TG"

Te 1.1

1.4

1.4

1.7

1.5

1.3

1.2

1.1

1.1

1.0

.9

.7

.8

.8

.7

.7

.6

.6

.6

.7

.7

.8

.8

.8

.7

.7

.7

.7

29.6

0.95

59

Apr.

0.7

.7

.8

.7

.6

.6

.6

.6

.6

.6

.6

.6

if

.6

.6

.6

.8

.7

.6

.6

.6

.6

.6

1.5

.8

.6

1.0

.9

1.0

-

20. 4

0.68

40

May

1.7

1.2

.9

.7

.7

.7

.6

.7

.6

.6

.6

.6

.6

.6

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.3

.3

.5

.5

.5

.2

.2

17.1

0.55

34

June

0.2

.2

.2

.2

.5

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

n 1

.1

,2

.2

.1

.1

.1

.1

.1

.1

.1

.1

-

4.4

0.15

8.7

July

p.:

o

0

0

0

0

o

0

o

0

0

0

0

o

o

o

0

0

0

o

0

0

0

0

o

0.7

0.02

1.4

Aug.

0

0

0

Sept.

0

0

o

Calendar year 1950 : Max 31 Mln 0 Mean O.852 Ao-ft 617

Hater year 1950-51 : Max 2.6 Mln o Mean O.33 Ao-ft 236

Peak discharge (base. 15 efs). Mar. 1 (4:30 a.m.) 16 cfs (3.04 ft).

256408
128 SANTA CLARA RIVER BASIN

Fillmore Irrigation Co.'s canal near Fillmore, Calif.

Location. Lat 34°27'15", long. 118°55 I 35", in SE^ sec. 1, T. 4 N., R. 20 W., on left 

bank 0.7 mile downstream from point of diversion on Sespe Creek and 4 miles north of 

Fillmore.

Records available.--October 1927 to September 1932 (monthly runoff, published with records

 ror Sespe creek at Sespe); October 1935 to September 1939 (yearly runoff, published with 

records for Sespe Creek near Fillmore); October 1939 to March 1940 (monthly figures, 

only); April 1940 to September 1951.

Gage.--Water-stage recorder and Parshall flume. Altitude of gage is 660 ft (from topo-

 graphic map). Prior to Jan. 17, 1946, staff gage at same site at different datum.

Extremes.--Maximum daily discharge during year, 7.9 cfs Apr. 9; minimum daily, 1.0 cfs 

July 31, Aug. 2.

1940-51: Maximum daily discharge, 16 cfs for several days in occasional years; no 

flow at times during 1941-43.

Remarks.--Records good except those for period of no gage-height record, which are fair.

 Discharge measurements generally made twice a month. Canal diverts water from Sespe 

Creek in SE£ sec. 1, T. 4 N., R. 20 W., 1 mile above station on Sespe Creek near Pillmore (see following page).

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

.7 

1.0

0.7 

2.0 

4.7 

8.2

Discharge, in cubic feet per second, water year October 1950 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.

a3.0

a3,0

a3.0

a3.0

a2.9

a2.9

a2.'7

a2.6

a2.5

2.5

2.5

2.5

2.5

2.4

2.5 

2.5

2.6

2.7

2.7

2.9

3.0

3.0

3.0

3.2

3.7

5.6 

4.3

3.8

3.6

3.6

93.5

3.02

185

Nov.

3.4

3.3

3.0

2.8

2.9

2.9 

3.0

3.0

3.1

2.8

2.9

3.0

4.1

5.0

4.7

4.3

4.1

4.6

3.6

2.6

2.1

2.5

2.8

2.8

3.1

3.4 

3.6

3.5

3.6

-

100.6

3.35

200

Dec.

3.8

3.8

3.8

3.9

3.8

3.7 

3.7

3.7

3 . 6

37?

3.6

3.6

3.6

3.7

3.9

H3.9

3.8

3.9

3.9

3.9

3.7

3.7

3.7

3.7

3.8 

3.8

3.8

3.7

3.6

116.9

3.77

232

Jan.

3.5

3.7

3.8

4.1

4.4

4.1

3.8

3.8

4.4

4.4

2.4

2.0

2.2

2.3

2.0

2.2

2.6

2.3

1.8

1.9

2.1

1.9

1.9

1.9

2.0 

2.0

2.9

3.1

3.0

88.3

2.85

175

Feb.

2.8

2.6

2.5

2.5

2.5

2.5

2.5

2.5

2.6

3.8

4.6

4.5

4.4

4.4

4.3

4.5

4.7

5.0

5.0

5.0

4.5

2.5

1.8

1.7

1.8 

1.5

_

-

93.9

3.35

186

Mar.

1.7

1.6

T79

2.2

2.2

2.1

2,0

2.0

2.1

2.2

2.2

2.1

2.1

1.9

1.9

1.9

2.7

3.5

4.0

4.7

5.3

5.5

5.5

6.3

6.9 

6.9

6.9

6.9

6.7

108.0

3.48

214

Apr.

6.7

6.6

6.7

7.3

7.4

7.4

7.8

7.9

7.6

7.3

6.6

6.4

6.2

6.2

6.2

6.2

6.2

6.6

7.0

6.7

6.4

6.3

6.0

4.9

6.7

5.8

4.1

-

198.5

6.62

394

May

4.5

3.9

4.1

4.3

4.2

4.6

2.8

4.0

5.0

5.3

5.6

570

4.8

4.7

4.5

4.3

4.0

3.8

3.7

3.7

3.6

3.4

3.2

3.0

2.8

2.4

O"2.3

120.4

3.88

239

June

2.3

2.1

1.9

2.0

2.3

2.3

2.6

2^8

2.7

2.5

2.5

2.4

2.3

2.3

2.2

2.4

2.3

2.4

2.4

2.4

2.5

2.5

2.5

2.3

2.2

1.9

1.9

69.9

2.33

139

July

1.8

1.8

1.9

i!s

1.7

1.5

1.6

1.7

1.8

1.7

1.6

1.6

1.5

1.5

1.4

.3

.3

.3

.3

.3

1.4

1.3

1.3

1.2

1.1

1.1

1.0

45.8

1.48

91

Aug.

1.1

1.0

1.1

1.2

1.1

1.1

1.1

1.1

1.3

1.4

1.3

1.2

1.1

1.1

1.2

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.4

1.4

1.3

1.6

179"

39.8

1.28

79

Sept.

1.9

1.9

1.9

1.8

1.8

1.7

1.7 

1.5

1.5

1.5

1.5

1.5

1.6

1.5

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.4

1.5

1.5

1.7

1.7

1.7

1.8

46.9

1.56

Calendar year 1950: Max 12 Min 1.3 Mean 4.27 Ac-ft 3,100

Water year 1950-51: Max 7'.g Min i.o Mean 3.08 Ac-ft 2,230

a No gage-height record; discharge estimated on basis of records for Sespe Creek near Fillmore.
SANTA CLARA RIVER BASIN 

Creek near Flllmore, Calif.

129

location. Lat. 34°26'55", long. 118°55'35", in NE£ sec. 12, T. 4 N., R. 20 W., on right 

tanK 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 1951. 

frior to November 1934, published as at Sespe".

Gage.--Water-stage recorder at present site and datum since Feb. 2, 1939. Altitude of gage 

Ts 590 ft. Prior to Sept. 30, 1913, staff gage, and Oct. 1, 1927, to Nov. 5, 1934, 

water-stage recorder, at sites 3 miles downstream at different datum. Kov. 6, 1934, to 

Mar. 2, 1938, water-stage recorder at same site at different datum.

Average discharge.--24 years (1927-51), 97.5 cfs; median of yearly mean discharges, 56 cfs.

Extremes.--Maximum discharge during year, 47 cfs Jan. 11 (gage height, 6.02 ft); minimum 

daily, 0.1 cfs on many days.

1927-51: Maximum discharge, 56,000 cfs Mar. 2, 1938, on basis of slope-area determination of peak flow; no flow except slight return seepage from Fillmore canal at 

times during irrigation season in 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.'s canal 

diverts water 1 mile above this station (see preceding page).

Revisions (water years).--W 901: 1938-39.

Rating table, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second)

(Shifting-control method used May 2-8)

5.Z

5.3

5.4

5.5

0 

.2 

.8

2.4

5.6

5.7

5.8

5.9

5.5

11

18

30

Discharge, in cubic feet per second, water year October 1950 to September 1951

lay

1

2

3

4

5

6

7

8

9

10

11

12

1.3

1.4

:.s

"6 7

:.p".9

20

121

22

23

24

25

'26

'27

28

29

30

31

Total

^an

Ao-ft

Oct.

0.1 ~7T

.1

.1

.1

.1

.2

.2

.2

.2

.2

.1

.1

.1

.2

.3

.2

.2

.2

.2

.2

.2

.3

.2

.2

.3

.8

7?

.3

.3

.3

6.7

0.22

13

Nov.

0.2 ?

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

2.8 T75"

.5

.3

.3

.3

.7

1.6

2.1

2.8

1.7

.9

.9

.9

.6

.4

.4

.4

-

22.1

0.74

44

Dec.

0.4

.4

.4

.4

.4

.4

.3

7T

.3

.3

.3

.3

.3

.3

_.£

.6

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

10.6

0.34

21

Jan.

0.3

.3

.3

.3

.3

.2

72

.2

.2

1.7

8.8

773

5.1

3.4

2.6

3.1

3.4

4.5

8.2

3.7

3.4

3.1

2.4

2.4

2.4

2.6

2.6

2.6

8.3

7.3

4.7

96.4

3.11

191

Feb.

3.7

3.4

3.

3.

3.

3.

3.

2.8

2.6

2.6

1.8

.9

.8

.8

1.0

1.2

1.0

1.0

.9

.li

.6

.7

12

15

15

14

19

TF

_

_

-

132.8

4.74

263

Mar.

303o~

17

13

11

10

8.3

8.3

7.8

8.3

10

9.4

8.8

8.3

8.3

8.8

9.4

8.8

8.8

7.3

5.9

5.1

3.7

3.1

£.6

2.1

1.3

.9

170

1.0

1.0

259.3

8.36

514

Apr.

.0

.0

.3

.9

.8

.9

.9

.3

.6

.4

.4

.3

73

.3

.3

.6

.7

.8

1.0

.9

.4

.3

.3

.3

5.0

.8.3

3.4

7.0

10 -5-. 9

59.6

1.99

118

May

5.1

TTT

3.7

2.8

3.7

4.0

4.7

5.1

2.7

1.1

.7

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.2

77

.2

.2

.2

.2

45.2

1.46

90

June

 

0.2r

TT

a.l

a.l

a. 2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

a. 2

5.6

0.19

11

July

aO.2

a, 2

a. 2

a. 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

.1

.1

3.7

0.12

7.3

Aug.

0.1 ~7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.2

.2

.2

.2

3.7

0.12

7.3

Sept.

0.2 ~3

.2

.2

.2

.1

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

-

4.2

0.14

8.3

Calendar year 1950: Max 1,230 Min 0.1 Mean 16.6 Ac-ft 12,000

 later year 1950-51: Max 30 Min 0.1 Mean 1.78 Ac-ft 1,290

Peak discharge (base, 1,300 efa). No peak above base.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

Fillmore Irrigation Co.'s canal near Fillmore.
130 SANTA CLARA RIVER BASIN

Santa Paula Creek near Santa Paula, Calif.

Location. Lat 34°23'40", long. 119°04 I 35", near east boundary of Ex Mission San Buenaventura Grant, on right bank 15 ft upstream from Santa Paula Water Works diversion dam and 

3 miles north of Santa Paula, Ventura County.

Drainage area. 39.8 sq ml.

Hecpras available. October 1927 to September 1951. 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). Mar. 24,

 1912, to Sept. 30, 1913, staff gage at site 2.5 miles upstream at different datum. Oct.

I,' 1927, to Feb. 19, 1931, water-stage recorder at site 500 ft downstream at different

datum.

Average discharge.--24 years (1927-51), 19.4 cfs; median of yearly mean discharges, 12 cfs. 

Extremes. Maximum discharge during year, 7.9 cfs Apr. 28 (gage height, 1.82 ft); no flow

ror many days.

1927-51: 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 during 1949 and 1951. 

Remarks.--Records fair. Discharge measurements generally made twice a month. Diversion

 Ib ft below station for municipal water supply. Figures of annual diversion above

station for irrigation, not previously published, furnished by Santa Paula Water Works, 

are given in following table:

Water year

1944-45 

1945-46 

1946-47 

1947-48

Acre-feet

266 

239 

247 

273

Water year

1948-49 

1949-50 

1950-51

Acre-feet

118 

92 

137

Eating table, water year 1950-51 (gage height, in feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 29 to Mar. 19, 

June 8-12, Aug. 25 to Sept. 19)

1.3

1.4

1.5

1.6

1.7

0

.2 

1.3 

3.4 

6.5

Discharge, In cubic feet per second, water year October 1950 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.

0.7

.4

.1

71

.2

.1

.1

.2

.4

1.3

1.0

.7

.7

.8

1.1

1.1

1.1

1.3

.4

.1

.3

1.0

1.3

1.4

1.3

1.8

2.7

270

1.8

2.0

1.8

29.3

0.95

58

Nov.

1.4

1.3

.8

75

1.0

1.3

1.4

1.4

1.7

1.1

1.3

1.6

275- 2.7

2.0

1.8

1.8

2.0

2.7

2.5

2.0

1.6

1.6

1.6

1.6

1.8

1.8

1.8

1.8

1.8

-

50.5

1.68

100

Dec.

2.0

2.2

2.2

2.2

2.0

2.0

2.0

2.2

2.0

2.2

2.2

2.0

2.2

2.2

5.0

2.5

2.2

2.0

2.2

2.3

2.2

2.2

2.0

 275 1.8

2.2

2.7

2.7

2.7

1.8

2.5

68.6

2.21

136

Jan.

3.2

1.8

1.7

2.1

3.4

1.7

1.4

1.3

1.3

2.7

4.2

3.7

2.5

1.8

1.4

1.3

1.1

T7J

3.7

2.5

2.5

2.5

2.5

2.5

2.5

2.2

2.5

2.7

 JTo- 4.4

2.2

73.7

2.38

146

Feb.

2.2

2.2

2.2

2.2

2.0

2.0

2.0

2.0

2.2

2.2

2.2

2.5

2.5

2.2

2.2

2.5

2.5

2.5

2.5

1.8

.7

.6

470

170

2.2

3.0

3.7

3.2

_

-

65.0

2.32

129

Mar.

5.2

4T5

3.2

3.2

3.2

3.0

3.0

2.7

2.7

2.7

2.7

2.5

2.5

2.2

2.7

3.2

2.5

2.7

3.0

3.0

2.5

2.7

2.7

2.7

2.7

1.8

1.4

1.3

176

3.2

3.0

85.5

2.76

170

Apr.

3.4

3.2

1.8

1.6

1.4

1.6

1.8

1.6

1.3

1.0

.8

.8

.6

.7

.8

1.0

.8

1.1

1.8

1.1

1.3

1.1

1.1

2.2

3.7

3.4

2.7

4.1

T77

2.2

-

53.7

1.79

107

May

1.8

T7S

1.6

1.4

1.4

1.6

1.4

1.3

1.4

1.4

1.6

1.6

1.6

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.4

al.4

al.3

al.2

al.l

aTTT

al.l

al.l

al.l

42.9

1.38

85

June

aO.9 aTga. 9

a. 9

a. 9

a. 9

a. 8

.7

.8

.8

.7

.2

~.l 0

.6

.1

.1

.2

.2

.2

.2

.2

.1

.2

.2

0

0

0

0

.8

-

12.6

0.42

25

July

0.8 "78

.8

.8

.8

.5

.2

.4

.7

.7

.8

.7

.1

0

0

0

0

o

0

0

0

0

0

.4

.7

.7

.5

.5

.5

.5

.5

12.4

0.40

25

Aug.

0.2

TT

0

0

0

0

0

0

0

0

.1

.1.1

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

.1

.2

.2

1.2

0.04

2.4

Sept.

0

.3

.6

76

.4

.3

.3

.2

.2

.2

.2

.4

.4

.4

.2

.2

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

-

5.?

0.17

1C

Calendar year 1950 : Max 206 Mln 0.1 Mean 4.60 Ac-ft 3,330

Water year 1950-51: Max 5.2 Mln 0 Mean 1.37 Ac-ft 993

Peak discharge (base. 200 eta). No peak above base.

a No gage-height records discharge estimated on basis of records of diversion by Santa Paula 

Works.
VENTURA RIVER BASIN 131 

Matllija Creek above reservoir, near Matlllja, Calif.

'jocation. Lat 34°29'40", long. 119°19'45", In SEijSW^ sec. 19, T. 5 N., R. 23 W. , on left 

bank 1.7 miles northwest of Matlllja and 2 miles upstream from Matlllja Dam.

Drainage area. 51 sq ml, approximately. 

Records available. May 1948 to September 1951.

Gage. Water-stage recorder. Datum of gage Is 1,160.20 ft above mean sea level (levels by 

County Water Survey) .

Extremes. --Maximum discharge during year, 5.7 cfs Apr. 28 (gage height, 2.85 ft); minimum 

 daily, 0.4 cfs Aug. 1-9, Sept. 8-15, 21-29.

1948-51: Maximum discharge, 155 cfs Feb. 6, 1950 (gage height, 3.94 ft); minimum 

daily, that of Aug. 1-9, Sept. 8-15, 21-29, 1951.

Remarks . --Records good. Discharge measurements generally made once a week. No diversion 

above station.

Cooperation. Gage -height record and 59 discharge measurements furnished by Ventura County 

Water Survey .

Discharge, In cubic feet per second, water year October 1950 to September* 1951

Day

1

2

3

4

5

6

7

8

9

-o

 1

12'3

".4

 5

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

1.0

1.0

.9

.8

.8

3.7

.7

.7

 

.

.7

.8

.7

.8

.8

.8

.8

.8

.8

.9

1.0

1.3

T72

1.2

1.2

1.2

26.5

0.85

53

Nov.

1.2

1.0

1.0

q

tf

.9

.9

1.0

1.0

1.0

1.0

1.0

1.

1.

1.

1.

1.

1.4

1.6

1.5

1.5

1.5

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.5

-

38.5

1.28

76

Dec.

i±5

1.5

1.5

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.7

1.7

1.7

1.7

1.7

1.7

50.2

1.62

100

Jan.

1.7

1.7

1.8

1.8

1.8

1.9

2.0

2.0

2.0

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

2.2

2.2

2.2

2.2

2.2

2.2

2^8

2.6

2.5

66.3

2.14

132

Feb.

2.5

2.5

2.4

2.4

2.4

2.4

2.4

2.3

2.3

2.3

2.3

2.3

2.3

2.4

2.4

2.4

2.5

2.5

2.5

2.5

2.5

2.5

3.5

3.3

3.3

3.5

3.8

3.7

_

_

-

74.1

2.65

147

Mar.

4.8

TTo

3.7

3.5

3.3

3.3

3.0

3.0

3.0

3.0

2.9

2.8

2.9

2.9

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.6

278

2.8

2.9

3.0

3.2

3.2

3.2

3.0

3.0

95.4

3.08

189

Apr.

3.0

3.0

3.2

3.2

3.2

3.0

3.0

2.8

2.8

2.9

2.9

2.8

2.8

2.9

3.0

3.0

2.9

2.9

2.8

2.9

2.8

2.6

2.6

2.6

4.5

3.7

3.3

3.7

3.3

3.2

91.1

3.04

181

May

2.9

276

2.4

2.4

2.4

2.5

2.5

2.6

2.6

2.6

2.6

2.5

2.5

2.4

2.4

2.4

2.3

2.3

2.2

2.3

2.4

2.4

2.3

2.3

2.0

2.0

2.0

2.0

2.0

iii

1.9

72.6

2.34

144

June

1.9

1.9

1.9

1.9

1.8

1.8

1.9

1.8

1.7

1.6

1.5

1.5

1.5

1.4

1.4

1.4

1.5

1.5

1.5

1.4

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

46.7

1.56

93

July

1.3

1.2

1.2

1.0

1.0

.9

.9

.9

.8

.9

1.0

1.0

.9

.9

.8

.8

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.i5-

24.6

0.79

49

Aug.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.t5.

.5

.5

.5

.S

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

14.6

0.47

29

Sept.

0.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

-

13.3

0.44

26

Calendar year 1950: Max 89 Mln 0.7 Mean 4.33 Ac-ft 3,140

Water year 1950-51; Max 4.8 Mln 0.4 Mean 1.68 Ac-ft 1,220

Peak discharge (base'. 100 cfs). No peak above base.
132 VENTURA RIVER BASIH

Matilija Reservoir at Matilija, Calif.

Location.--Lat 34°29'00", long. 119°18'30", in SE^ sec. 29, T. 5 N., R. 23 W., on upstream 

 race near right end of Matilija Dam, 0.2 mile northwest of Matilija.

Drainage area.--54.6 sq mi.

Records available. March 1948 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,000.00 ft above mean sea level (levels by 

Centura County Water Survey).

Extremes. Maximum contents during year, 692 acre-ft Mar, 5-7 (gage height, 41.30 ft); mirimum, 54 acre-ft (sluice gate open) July 27 to Sept. 30.

1948-51: Maximum contents, 1,890 acre-ft May 7, 1950 (gage height, 66.70 ft); minimum, that of July 27 to Sept. 30, 1951.

Remarks.--Reservoir is formed by concrete dam. Storage began Mar. 14, 1948. Capacity ant4 

area ratings for reservoir are based on surveys made in 1948. Dead storage below sluice 

gate (gage height, 0.0 ft), 54 acre-ft. Capacity below outlet gate (gage height, 25.0 

ft), 250 acre-ft; below spillway level (gage height, 125.0 ft), 7,020 acre-ft. Water 

released from reservoir passes down natural channel of Matilija Creek for diversion 

downstream for irrigation. Records show contents at 12 p.m. on last day of each month.

Cooperation. Gage-height record furnished by Ventura County Water Survey.

Monthly gage height and contents, water year October 1950 to September 1951

Month

MflV

Water year 1950-51. .........

Gage height 

(feet)t

35 72

-

Contents 

(acre-feet)

e54

e54

-

Change In 

contents 

(acre-feet)

+4

+552

-581

t At 12 p.m. on last day of month. 

e Estimated (dead storage).
VENTURA RIVER BASIN 133

Matilija Creek at Matilija, Calif.

Location. Lat 34°28'50", long. 119°18'06", in SW^ sec. 28, T. 5 N., R. 23 W., on right 

bank 0.1 mile southeast of Matilija and 0.2 mile upstream from North Fork.

Drainage area. 55 sq mi , approximately.

Records available. October 1927 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 950 ft (from topographic map). Prior to 

Feb. 10, 1939, at site 0,6 mile upstream at different datum.

Extremes. Maximum discharge during year, 127 cfs July 26 (gage height, 4.38 ft); minimum 

daily, 0.4 cfs Aug. 19-28, Sept. 2, 3, 7-11, 13-24.

1927-51: Maximum discharge, 15,900 cfs Mar. 2, 1938, on basis of slope-area determination of peak flow; minimum daily, 0.1 cfs on several days during most years of regulated flow.

Remarks. Records good. Discharge measurements generally made twice a month. No diversion above station. Flow regulated by Matilija Reservoir 0.4 mile above station since 

Mar. 14, 1948 (see preceding page).

Cooperation. Three discharge measurements furnished by Ventura County Water Survey. 

Revisions (water years). W 931: 1939, 1940.

Rating table, water year 195O-51 (gage height, In feet, 

an<? discharge, In cubic feet per second) 

(Shifting-control method used July 25, 26)

2.1

2.2

2.3

0.3 

.5

2.4

2.5

2.6

1.2 

2.3

4.4

2.7 

2.9 

3.4

7.6

17

54

Discharge, In cubic feet per second, water year October 195O 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.

17 

l.O

l.O

ii

.9

.9

.9

.9

1.0

1.0

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

1.0

l.O

1.0

l.O 1.1

1.1

1.2

1.1

1.0

1.0

47.0

1.52

93

Nov.

1.0 

1.0

1.0

1.0

1.0

1.0

1.1

TTo

^6

.9

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

l.O

1.1

1.1

1.1

1.1

30.3

1.O1

6O

Dec.

H

1.1

1.2

1.2

1.2

1.2

1.5

ITS

1.5

1.5

1.4

1.4

1.4

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

1.5

1.4

1.5

42.7

1.38

85

Jan.

H

1.8

1.9

1.9

1.9

1.8

1.8

1.6

1.8

1.9

1.6

1.6

1.6

1.6

1.6

1.6

1.8

1.8

1.8

1.9

1.9

2.1

2.1

2.1

2^3

2.1

2.1

2.1

1.9

57.7

1.86

114

Feb.

1.8

i!s

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.9

2.3

1.9

1.9

2.6

2.1

2.1

2.3

2.6

3.2

_

-

55.4

1.98

110

Mar.

lii

3.7

3.4

3.4

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.2

3.0

3.O

3.0

3.0

3.0

3.O

3.0

3.O

3.0

2.8

278

2.8

2.8

2.8

2.8

2.8

96.7

3.12

192

Apr.

2.8 

2.8

2.4

2.4

2.4

2.6

2.6

2.4

2.6

2.8

2.8

2.6

2.8

2.8

5.0

2.8

2.8

2.B

2.8

2.8

2.8

2.6

2.4

2.6

2.8

2.8

2.8

3.0

3.0

-

81.6

2.72

162

Calendar year 195O : Max 34 Min 0.1 Mean 3.96

May

H2.8

2. >8

2.8

2.8

2.6

2.6

2.6

2.6

2.6

2;6

2.6

2.6

2.4

2.4

2.3

1.9

1.6

T76

1.9

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.3

72.9

2.35

145

June

2.3 

2.3

2.3

1.9

1.8

2.1

2.3

2.1

2.1

2.1

2.1

2.1

1.9

1.9

1.9

1.9

1.9

1.9

33

52

19

1.6

1.5

1.5

1.5

1.2

1.2

1.2

1.2 

1.2

-

153.0

5.1O

303

July

1.2 

1.3

1.4

1.5

1.5

1.5

.5

.6

.3

.9

.0

.O

.O

.9

1.0

.9

.9

.9

.9

.9

.9

.9

1.0

1.1

41

38

1.2

.9 

 8

.7

77

110. 3

3.56

219

Aug.

^

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

4.4

.4

.4

.4

.4

.4

.4

.4

.4 

.5

.5

.5

15.5

O.5O

31

Sept.

*4

71

.5

.5

.5

.4

.4

.4

.4

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5 

.5

.5

-

13.1

0.44

26

AC-ft 2,870

Water year 195O-51 : Max 52 Bin 0.4 Mean 2.13 Ac-ft 1,54O

256498 O - 53 - 10
134 VENTURA RIVER BASIN

North Fork Matilija Creek at Matillja, Calif.

Location. Lat 34°29'15", long. 119°18'20", in NE£ see. 29, T. 5 N., R. 23 W., on right 

bank at highway bridge, 0.5 mile upstream from mouth and 0.5 mile north of Matilija.

Drainage area. 15.5 sq mi.

Records available. October 1928 to September 1932, October 1933 to September 1951.

Gage. Water-stage recorder.

Average discharge. 22 years, 8.94 efs; median of yearly mean discharges, 4.7 efs.

Extremes. Maximum discharge during year, 3.5 efs Jan. 11; minimum daily, 0.1 efs on several days during year.

1928-32, 1933-51: Maximum discharge, 5,580 efs Mar. 2, 1938; minimum, 0.1 efs on 

several days during 1929, 1931, and 1951.

Cooperation. Records furnished by Venture County Water Survey.

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Ac- ft

Oct.

0.8

.8

.6

.6

.6

.5

.5

.5

.6

.6

.6

.6

.6

.6

.8

.5

.5

.6

.6

.6

.7

.8

.8

.8

.8

1.2

 

1.3

.8

.8

.8

21.8

0.70

43

Nov.

0.8

.8

.8

.7

.7

.7

.7

.6

.6

.6

.7

.8

1.3

1.1

1.0

.9

.8

1.0

1.4

1.2

1.1

1.0

.9

.9

.9

.9

1.0

1.0

1.0

1.0

26.9

0.90

53

Dec.

1.0

1.0

1.0 1.1

1.1

.9

.9

.9

.9

.9

.9

.8

78

.9

1.0

.9

.9

.9

.9

1.0

.0

.0

.0

.0

.0

.0

.0

1.0

1.0

1.0

1.1

29.8

0.96

59

Jan.

1.1

1.1

1.2

1.2

1.2

1.1

1.1

1.0

.8

172

1.7

T73

1.2

1.2

1.2

1.2

1.2

1.2

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.7

1.3

1.2

37.6

1.21

75

Feb.

1 0

TT!

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

1.2

1.2

1.2

1.3

2.3

li*

1.7

1.8

1.6

_

-

36.9

1.32

73

Calendar year 1950 : Max 58 Mln 0.3

Mar.

2.8

T79

1.9

.9

.9

.7

.6

.6

1.6

1.6

1.6

1.5

1.5

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

1.8

44.9

1.45

89

Apr.

1.2

1.2

1.2

1.3

1.3

1.3

1.2

1.2

1.2

1.2

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.0

1.1

1.0

4.9

1.4

1.3

1.2

1.7

TTs

1.5

-

35.1

1.17

70

May

1.3

T7J

1.2

1.2

1.1

1.1

1.0

1.0

1.0

1.0

1.1

1.2

1.2

1.2

1.1

.8

.8

.8

.8

.8

.9

.9

.9

.8

.7

.6

.6

.5

75

.6

.7

28.7

0.93

57

June

0.6

.5

.5

.5

i!

.6

.6

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.5

.5

.6

.6

.6

.6

.5

.5

.5

.4

73" .3

-

15.8

0.53

31

July

0.4

.4

.5

75

.4

.3

.3

.3

.3

.4

.4

.4

.4

.3

.3

.2

.2

.2

.2

i!

.1

.2

.2

.1

.2

.2

.2

.2

.2

.1

.1

8.3

0.27

16

Aug.

0.1

.1

.1

.1

.1

.1

.1

.2

.2

il

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

.3

.2

.1

.1

.3

.4

.4

6.3

0.20

12

Sept.

~73 0.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.-2

il

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.3

.3

.3

.3

.3

-

6.3

0.21

12

Mean 2.04 Ao-ft 1,480

Water year 1950-51 : Max 2.8 Mln 0.1 Mean O.82 Ac-ft 592
VENTURA RIVER BASIN 135

Coyote Creek near Ventura, Calif.

Location. Lat 34°21'20", long. 119°18'50", near southeast corner of Santa Ana Grant, on 

right bank 200 ft downstream from highway bridge, 0.2 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 240 ft (from topographic map). Prior to 

Mar. 22, 1934, chain gage at site 200 ft upstream at different datum.

Average discharge. 23 years, 12.6 efs; median of yearly mean discharges, 5.5 cfs.

Extremes.--Maximum discharge during year, 1.6 cfs Jan. 11 (gage height, 0.68 ft); no flow 

during several months.

1927-32, 1933-51: Maximum discharge, 11,500 cfs Mar. 2, 1938, on basis of slope-area 

determination of peak flow; no flow at times in some years.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Discharge measurements generally made twice a month. No diversion above station.

Cooperation. Thirteen discharge measurements furnished by Ventura County Water Survey.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

0.1 

.2 

.3

O.4 

.5

.2

Discharge, in cubic feet per second, water year October 195O to September 1951

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.

~

0.1

O0"

o

0

0

.1

.1.1

.1

.1.1

.1

.1

.1.1

.1

.1

.1

.1.1.1

.1

.1

.1.1

.1

.1

.1.1

2.6

0.08

5.2

Nov.

0.1

.1

00"

0

.1

.1

.1.1

.1

a.l

a.l

a.l

a.l

a. 2

a. 2

a. 2

a. 3

a72

a.l

a.l

.1

.1

.1

.1

.1

.2

.2

.2

.2

-

3.7

0.12

7.3

Dec.

~7f 0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.Z

.2

.2

.1

TT

.1

.1

.1

.1

.1

.1

.1

5.3

O.17

11

Jan.

0.1 5

.2

.2

.2

.2

.2

.2

.2

.3

.4

73

.2

.2

.2

.2

.Z

.2

^3

.2

.2

.2

.3

.3

.3

.3

.3

.3

.4

.3

.3

7.6

0.25

15

Feb.

O.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

72

.2

.2

.2

.2

.2

.2

.2

.2

.5

.3

.3

.4

.4

.4

_

_

-

7.9

0.28

16

Mar.

0.6

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.272"

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

9.1

0.29

18

Apr.

0.2 "72

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.4

.2

.2

6.3

0.21

12

May

~^Z 0.2

.2

.1

.1

.1

.1

.1

.1

.2

.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

3.5

O.ll

6.9

June

ao.l

a.l

a.l

a.l

a.l

a.l

a.l

.1

0

0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

o

o

0

0

2.1

0.07

4.2

July

O

O

O

Aug.

0

O

O

Sept.

0

O

O

Calendar year 1950: Max 30O Bin 0 Mean 2.03 Ac-ft l,48O

Water year 195O-51: Max 0.6 Mln o Mean O.13 Ad-ft 95

Peak discharge (base, 450 cfs). No peak above base.

a No gage-height record; discharge estimated on basis of recorded range in stage and weather 

records.
136 VENTURA RIVER BASIN

Ventura River near Ventura, Calif.

Location. Lat 34°21'00", long. 119°18 T 20", in southeast corner of Santa Ana Grant, on 

rignt bank 500 ft downstream from 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 1951.

Gage. Water-stage recorder. Altitude of gage is 200 ft (from topographic map). Prior 

5b 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 same datum.

Average discharge. 24 years (1911-13, 1929-51), 62.3 cfs; median of yearly mean discharges, 

31 cfs.

Extremes. Maximum discharge during year, 0.3 cfs Mar. 1 (gage height, 3.53 ft); no flow 

during most of year.

1911-13, 1929-51: 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 contractedopening determinations of peak flow; no flow at times during many years.

Remarks. Records fair. Discharge measurements generally made twice a month. Water diverted from Ventura River and tributaries for irrigation and municipal supply.

Discharge, In cubic feet per second, water year October 1950 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.

0

0

0

Nov.

O

0

0

Dec.

0

0

O

Jan.

0

0

0

Feb.

0

0

0

Mar.

0.1 Q 

0

O

0

O

0

O

0

0

0

O

0

O

0

0

0

0

0

0

0

0

0

0

0

0

O

0

0

0

0

0.1

0.003

0.2

Apr.

0

0

0

May

0

o

0

June

o

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

o

Calendar year 1950: Max 600 Mln O Mean 3.62 Ac-ft 2,620

Water year 195O-51: Max 0.1 Mln O Mean O.OOO3 Ac-ft O.2

Peak discharge (base, 50O efs). No peak above base.
CARPINTERIA CREEK BASIN 137

Carpinteria Creek near Carplnteria, Calif.

Location. Lat 34 0 24'00", long. 119°29 I 25", in El Rincon Grant, on left bank at bridge on 

state Highway 150, 400 ft downstream from Gobernador Creek and 2.4 miles northeast of 

Carpinteria, Santa Barbara County.

Drainage area. 13.8 square miles.

Heeoras available. January 1941 to September 1951.

uage. water-stage recorder. Altitude of gage is 150 ft (from topographic map).

Average discharge. 10 years, 1.29 cfs; median of yearly mean discharges, 0.5 cfs.

iixtremes. Maximum discharge during year, 0.8 cfs Jan. 11 (gage height, 2.15 ft); no flow 

during most of year.

1941-51: Maximum-discharge, 1,450 cfs Jan. 22, 1943 (gage height, 7.30 ft), from 

rating curve extended above 600 cfs; no flow at times each year.

Remarks. Although some flow occurred Jan. 11 and small amounts on other scattered days, 

no mean daily discharge.exceeded 0.05 cfs. Figures for calendar year 1950 are as 

follows: total cfs-days 60.5; maximum, 41 cfs; minimum, zero; mean, 0.17 cfs; runoff, 

120 acre-ft. Small lake upstream catches storm runoff from 0.74 sq mi, which is drained 

past station by pumping; no flow from this lake this year.

Revisions (water years). W 1061: 1943.
138 ATASCADKRO CREEK BASIN

Atascadero Creek near Goleta, Calif.

Location. Lat 34°25i25", long. 119°48'40", in La Goleta Grant, on do'wnstream side of

center pier at highway bridge Just downstream from Maria Ygnacio Creek, 1 mile upstream 

from mouth and 1.3 miles southeast of Goleta, Santa Barbara County.

Drainage area.--18.3 sq mi.

Records available.--October 1941 to September 1951 (prior to October 1947, published as 

Aiascadero Creek).

Gage.--Water-stage recorder. Altitude of gage Is 40 ft (from topographic map). 

Average discharge.--10 years, 1.50 cfs; median of yearly mean discharges, 0.8 cfs.

Extremes. Maximum discharge during year, 2.1 cfs Mar. 1 (gage height, 4.54 ft); no flow 

for several months.

1941-51: Maximum discharge, 1,300 cfs Jan. 22, 1943 (gage height, 10.6 ft, from 

floodmarks), from rating curve extended above 550 cfs plus computed overflow; no flow 

during large part of each year.

Remarks. Records fair. Discharge measurements generally made twice a month. Small diverslons above station for irrigation; occasional waste water for local irrigation.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

4.1 O

4.2 .1

4.3 .3

4.4 .9

Discharge, in cubic feet per second, water year October 195O to September 1951

Day

1

Z

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

Total

Mean

Ac- ft

Oct.

0

0

o

Nov.

O

0

0

Dec.

o

0

0

Jan.

0

O

0

Feb.

0

0

0

Mar.

0.7

.6

.1

O

V

0

o

0

o

0

o

0

o

0

0

0

0

0

o

0

0

o

0

0

0

o

0

0

.1

.1

.3

1.9

0.06

3.8

Apr.

0.2

.1

.1

.1

.1

.1

O-Q

o

0

0

0

0

0

0

0

0

0

c

0

0

0

0

0

o

o

0

.1

.3

-

1.2

O.O4

2.4

May

0.1 0~

0

0

0

0

0

0

o

0

0

0

o

0

0

0

.1

0

o

0

0

0

0

0

0

o

0

0

0

0

o

0.2

0.006

0.4

June

-QO

0

0

_a

0

.1

0

o

0

o

0

0

0

0

0

0

o

o

0

0

0

0

0

0

o

0

0

o

0

-

0.2

0.007

0.4

July

-QO

0

0

0

o

0

0

o

0

0

0

.1

0

0

0

0

0

o

0

0

o

0

.1

o

.1

0

0

0

0

.1

0.4

0.01

0.8

Aug.

0.

o-Q

o

0

2.7

O.O9

5.4

Sept.

0

15

o

0

o

o

0

0

0

0

0

0

0

0

o

0

o

.1

0

o

o

0

o

o

0

o

o

o

0

0

-

cr.i

O.O03

0.2

Calendar year 1950: Max 41 Min o Mean 0.222 Ac-ft 16O

Water year 1950-51: Max 0.7 Mln o Mean O.O2 Ac-ft 13

Peak discharge,(base, 6O efs). No peak above base.
SAN JOSE CREEK BASIN 

San Jose Creek near Goleta, Calif.

139

Location. Lat 34 0 27'25", long. 119°48'30", in La Goleta Grant, on left pier of Patterson 

Avenue Bridge, 1.1 miles downstream from unnamed tributary and 1.7 miles north of Goleta, Santa Barbara County.

Drainage area. 5.54 sq mi.

Records available.--January 1941 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 120 ft (from topographic map).

Average discharge.--10 years, 1.02 cfs; median of yearly mean discharges, 0.75 cfs.

Extremes. Maximum discharge during year, 5.2 cfs Jan. 11 (gage height, 1.32 ft); no flow 

for Several months.

1941-51: Maximum discharge, 1,960 cfs Apr. 4, 1941, from rating curve extended above 

850 cfs by logarithmic plotting; maximum gage height, 7.24 ft Jan. 21, 1943; no flow at 

times during each year.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Discharge measurements generally made twice a month. Many small diversions above station for irrigation.

Discharge, in cubic feet per second, water year October 1950 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.

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

0

0

0

0.1

0.003

0.2

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

.1.1

.9

.3

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

2.5

0.08

5.0

Dec.

0.1

.1

.2

.2

.1

.1

.1

.1

a.l

a.l

a. 2

aT2

a. 2

.2

.2

.2

.1

.2

.1

.2

.2

.1

.2

.2

.2

.2

.1

.1

.1

.1

.2

4.7

0.15

9.3

Jan.

0.1

TT

.2

.2

.2

.2

.2

.2

.2

.4

1.2

.4

.3

.2

.2

.2

.2

.3

.2

.2

.2

.3

.3

.3

.3

.2

.2

.2

.3

.2

.1

8.0

0.26

16

Feb.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

^i

.1

.1

.1

.1

.2

.2

.2

.1

.2

.2

.1

.2

.2

.2

.1

.2

.2

~.3

-

-

4.9

0.18

9.7

Mar.

0.6T2~

.2

.3

.2

.2

,2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

0_

6.0

0.19

12

Apr.

0.1

0

0

.1.1

0

0

0

0

0

0

0

0

.1.1

.1

.1

0

0

0

0

0

0

0

.1

.2

.2

.2

75

-

2.0

0.07

4.0

May

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.2

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.2

.1

.1

.1

.1

0

0

0

0

3.9

0.13

7.7

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 42 Min 0 Mean 0.318 Ac-ft 229

Water year 1950-51: Max 1.2 Min 0 Mean 0.09 Ac-ft 64

Peak discharge (baae. 100 cfaK No peak above base, 

a-No gage-height record; discharge interpolated.
140 SANTA YNEZ RIVER BASIN 

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

Location.--Lat 34°29'32", long. 119°30'25", on upstream side of Juncal Dam, 6.5 miles 

nortn of Carpinteria and 8 miles northeast of Montecito, Santa Barbara County.

Drainage area. 16.0 sq mi (not including Alder Creek).

Records available.--December 1930 to September 1951. Prior to October 1938, published as 

"at juncai Keservoir, near Montecito."

Gage.--Water-stage recorder on Jameson 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 lake, computed on basis of records of storage, diversion to 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. 

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 acreft, below lowest outlet at gage height 139.0 ft, included in these records. Records 

are computed as of 6 p.m. on last day of each month. There is no regulation or diversion above Jameson Lake. A part of flow of Alder Creek, which enters Santa Ynez River 

2 miles downstream from Juncal Dam, is diverted from above elevation 2,250 ft to 

Jameson Lake, and is included in these records.

Cooperation.--Records furnished by Montecito County Water District. 

Revisions (water years). W 1151: 1948.

Monthly runoff, October 1949 to September 1951

Month

December. ...........

Calendar year 1949

Water year 1949-50

December. ...........

Calendar year 1950

Water year 1950-51

Jameson Lake

Gage 

height 

(feet)t

173.96 

171.46 

171.00 

171.36

-

172.54 

175.50 

176.67 

177.44 

177.78 

177.02 

175.53 

173.40 

171.50

-

169.73 

168.76 

168.72

-

1E8.85 

168.90 

169.02 

169.19 

168.84 

167.61 

165.48 

163.53 

162.34

-

Contents 

(acrefeet)t

1,697 

1,543 

1,515 

1,537

-

,608 

,794 

,871 

,922 

,945 

,894 

,796 

,661 

,545

-

1,441 

1,385 

1,383

-

1,390 

1,393 

1,400 

1,410 

1,390 

1,320 

1,205 

1,105 

1,046

-

Change 

In 

contents 

(acrefeet)

-154 

-28 

+22

-782

+71 

+186 

+77 

+51 

+23 

-51 

-98 

-135 

-116

-152

-104 

-56 

-2

-154

+7 

+3 

+7 

+10 

-20 

-70 

-115 

-100 

-59

-499

Draft 

(acrefeet)

137 

47 

9

959

0 

0 

0 

0 

0 

46 

73 

98 

95

505

95 

59 

0

466

0 

0 

1 

2 

9 

52 

89 

77 

40

424

Spill 

and 

release 

(acrefeet)

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 

0 

0

0

Evaporation 

(acrefeet)

17 

7 

3

259

3

7 

15 

22 

30 

37 

41 

38 

24

244

16 

7 

4

244

5 

8 

17 

15 

29 

32 

36 

32 

24

225

Total 

Inflow 

(acrefeet)

0 

26 

34

436

74 

193 

92 

73 

53 

32 

16 

1 

3

597

7 

10 

2

556

12 

11 

25 

27 

18 

14 

10 

9 

5

150

Rain on 

reservoir 

(acrefeet)

0 

17 

23

107

25 

16 

8 

7 

0 

0 

1 

0 

2

99

6

10 

2

77

12 

8 

3 

9 

0 

0 

0 

0 

0

50

Net 

runofi 

(acre 

feet)

0 

9

11

329

49

177 

84 

66 

53 

32 

15 

1 

1

498

1 

0 

0

479

0 

3

22

18 

18 

14 

10 

9 

5

100

t On last day of month.
SANTA YNEZ RIVER BASIN 141

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

Location. Lat 34°31'37n , long. 119°41'10", on upstream side of Gibraltar Dam, 7 miles 

north of Santa Barbara, Santa Barbara County.

Jralnage area.--219 sq mi.

Sage. Water-stage recorder on reservoir and water-stage recorders and sharp-crested weirs 

on outlet and diversion channels below dam. Datum of reservoir gage is 21.53 ft above 

mean sea level (Bureau of Reclamation bench mark) and is datum used by city of Santa 

Barbara for works in this vicinity.

August 1916 to November 1918, water-stage recorder at Gibraltar dam site at different datum. Prior to August 1916, staff gage 900 ft downstream at different datum.

Average runoff . 31 years (1920-51), 30,350 acre-ft per year (41.9 cfs), computed from 

rigures or net runcff; median of yearly net runoff, 12,300 acre-ft (17 cfs).

Remarks.--Records of total inflow represent all water reaching Gibraltar Reservoir, Ineluding 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 runoff exclude rainfall on water surface, computed on basis of area and records of 

precipitation. Reservoir capacity and area tables are based on surveys made in 1948. 

Reservoir capacity at spillway level (gage height, 1,378.82 ft), 16,000 acre-ft. Dead 

storage, 863 acre-ft, below lowest outlet at gage height, 1,312.04 ft, included in 

these records. Records are computed as of 6 p.m. on last day of each month. Flow regulated at Jameson Lcike, where water is also diverted out of basin to city of Montecito 

(see preceding page).

Cooperation. Reservoir-operation records and related data furnished by city of Santa 

Barbara.

Revisions (water years).--W 706: 1921, 1922. W 1041: 1944.

Monthly runoff, October 1949 to September 1951

Month

September 1949

November ...... 

December ......

Calendar year 

1949.

January 1950. . 

February ......

September .....

Water year 

1949-50.

October 1950 . . 

November ...... 

December ......

Calendar year 

1950.

January 1951 ..

September .....

Water year 

1950-51.

Gibraltar Reservoir

Gage height 

(feet)t

1,319.28 

1,318.54' 

1,318.48 

1,318.94

-

1,321,10 

1,331.09 

1,333.53 

1,335 86 

1,335.21 

1,333.83 

1,332.53 

1,330.96 

1,330.19

-

1,329.11 

1,329.09 

1,328.81

-

1.32E.75 

1,326.74 

1,326.11 

1,326.94 

1,325.46 

1,323.61 

1,320.99 

1,319.78 

1,319.19

"

Contents 

(acrefeet)t

1,670 

1,579 

1,572 

1,626

-

1,899 

3,310 

3,685 

4,052 

3,948 

3,731 

3,530 

3,290 

3,174

-

3,012 

3,009 

2,968

-

2,956 

2,958 

2,865 

2,695 

2,486 

2,231 

1,885 

1,732 

1,659

"

Change 

in 

"contents 

(acrefeet)

-91 

-7 

+56

-37

+271 

+1,411 

+375 

+367 

-104 

-217 

-201 

-240 

-116

+1,504

-162 

-3

-41

+1,340

-12 

+2 

-93 

-170 

-209 

-255 

-346 

-153 

-73

-1,515

Draft 

( acrefeet)

31 

4 

0

837

0 

0 

2 

0 

135 

117 

100 

117 

44

550

92 

0 

16

623

18 

0 

84 

169 

126 

172 

255 

63 

0

995

Spill 

and 

release 

(acrefeet)

3 

3

4

23

3 

2 

3 

3 

4 

3 

3 

3 

4

38

4 

3 

4

39

4 

3 

4 

3 

3 

3 

3 

3 

4

41

Evaporation 

(acrefeet)

42 

25 

12

565

12 

22 

47 

63 

76 

86 

99 

99 

70

653

51 

24 

14

663

14 

23 

46 

47 

73 

77 

93 

83 

69

614

Total 

inflow 

( acre - 

feet)

-15 

25 

72

1,388

286 

1,435 

427 

433 

111 

-11 

1 

-21 

2

2,745

-15 

24 

-7

2,665

24 

28 

41 

49 

-7 

-3 

5 

-4 

0

135

Rain on 

re servoir 

(acrefeet)

0 

26 

47

186

43

28 

18 

18 

0 

0 

0 

0 

4

184

18 

28 

8

165

28 

16 

19 

18 

0 

0 

0 

0 

0

135

Net 

runoff 

(acrefeet)

-15 

-1 

25

1,202

243 

1,407 

409 

415 

111 

-11 

1 

-21 

-2

2,561

-33 

-4 

-15

2,500

-4 

12 

22 

31 

-7 

-3 

5 

-4 

0

0
142 SANTA YNEZ RIVER BASIN

Santa Ynez River below Gibraltar Dam, near Saita Barbara, Calif.

Location (revised). Lat 34"31'28", long. 119"41'11", on left bank 700 ft above Gibraltar 

uam, v miles north of Santa Barbara, Santa Barbara Coun~y.

Drainage area. 219 sq mi.

Records available. April 1920 to September 1951 (monthly discharge only prior to October J.94J.) . 

Gage.--Water-stage recorder and sharp-crested weir on outlet channel below dam, and waterstage recorder on Gibraltar Reservoir (formerly considered principal gage). Datum of 

reservoir gage is 21.53 ft above mean"sea level (Bureau of Reclamation bench mark).

Average discharge. 31 years, 36.7 cfs (unadjusted); median of yearly mean discharges, 

ia crs.

Extremes. 1949-50: Maximum daily discharge during water year, 0.10 cfs Apr. 29; no flow

1950-5i: Maximum daily discharge during water year, 0.11 cfs Oct. 6; minimum daily, 

0.03 cfs Nov. 2, Feb. 4, 5, May 1, Aug. 13-15.

1920-51: Maximum discharge, 35,500 cfs Mar. 2, 1938, computed from spillway rating; 

no flow at times during most years.

Remarks. Records good. Discharge represents flow in Santa Ynez River passing Gibraltar 

Dam7 computed on basis of records of spillway discharge and controlled release. There 

was no flow over spillway during 1949-50 or 1950-51 water years. Flow regulated by 

Gibraltar Reservoir and Jameson Lake. Figures of daily discharge computed on basis of 

24-hour interval ending at 6 p.m. on day for which they are shown. City of Santa 

Barbara diverted 550 acre-ft during 194"9-50 water year and 995 acre-ft during 1950-51 

water year from Gibraltar Reservoir; Monteclto County Water District diverted 505 acreft during 1949-50 water year and 424 acre-ft during 1950-51 water year from Jameson Lake.

Cooperation. Records of gage height furnished by city of Santa Barbara. 

Revisions (water years). W 706: 1921-22. W1041: 1944.

Discharge, In cubic feet per second, 1949-51 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

0.05

.04

.TO

.05

.05

.05

.05

.05

.05

.06

.06

.06

.06

.06

.05

.05

.05

.05

.05

.05

.05

.06

.04

.05

.06

.05

.05

.05

.05

.05

.05

1.60

0.052

3.2

Nov.

0.05

.05

.04

.or

.04

.05

.06

.07

.TO

.05

.05

.04

.05

.04

.05

.04

.04

.04

.05

.05

.04

.04

.05

.05

.05

.05

.05

.05

.05

.05

-

1.44

0.048

2.9

Dec.

0.05 ~7TO

.06

.08 . 07

.07

.07

.08

a. 08

a. 08

a. 07

a. 07

a. 07

a. 07

a. 06

a. 06

a. 06

.06

.06

.06

.06

.06

.06

.06

.05

.05

.05

.05

.05

.05

.05

1.93

0.062

3.8

Jan.

0.05

.04

.04

.04

.04

.04

.05

.06

.OT

.05

.04

.03 .TO

.04

.05

.04

.04

.04

.05

.06

.06

.06

.06

.05

.06

.06

.06

.06

.06

.06

.06

1.52

0.049

3.0

Feb.

0.06

0

O

0

0

0

0

0

0

0

0

0

.03

.04

.04

.05

.05

.05

.05

.05

.06

.06

.04

.06

.06

.07

.TO

.06

_

_

-

.88

0.031

1.7

Mar.

0.06

^TO

.04

.TO

.05

.05

.04

.04

.04

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.05

.06

,06

.06

.06

.05

.06

.06

.05

.05

1.70

0.055

3.4

Apr.

0.05

.05

.05

.05

.05

.05

.04 . 07

.06

.06

.06

.04

.05

.05

.06

.04

.04

.04

.04

.04

.06

.06

.06

.06

.07

.05

.05

.04

.10

.TO

-

1.61

0.054

3.2

May

0.06

.07

.06

.09

.TO

.08

.07

.08

.06

.06

.06

.07

.07

.05

.03

.06

.06

.06

.06

.05

.05

.06

.06

.06

.05

.05

.07

.06

.09

.05

.05

1.93

0.062

3.8

June

0.06

.06

.04

.TO

.05

a. 05

a. 05

a. 05

a. 05

a. 04

a. 04

a. 04

.04

.07

.TO

.05

.05

.05

.05

.05

.05

.06

.05

.05

.05

.05

.07

.06

.06

.07

-

1.56-

0.052

3.1

July

~7TO 0.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.06

.TO

.05

.05

.05

.05

.05

.06

.05

.05

.05

.05

.05

.05

.06

.05

1.58

0.051

3.1

Aug.

0.05

TTO

.05

.05

.05

a. 05

.06

.06

.05

.05

.05

.05

.05

.05

.05

.05

.05

.07

.05

.05

.07

.08 . 07

.06

.06

.06

.05

.05

.05

.07

.05

1.71

0.055

3.4

Sept.

0.05

.05

.07

.05

.05

.05

.05

.04

.TO

.05

.05

.07

.07

.06

.06

.07

.09

.TO

.07

.07

.06

.06

.07

.07

.06

.06

.06

.08

.07

.04

-

1.83

0.061

3.6

Calendar year 1949: Max 0.08 Mln 0 Mean 0.032 Ac-ft 23

Water year 1949-50: Max 0.10 Mln 0 Mean 0.053 Ac-ft 38

a Ho gage-height record; discharge interpolated.

Note. Computed from once-daily hook gage readings Mar. 6 to Sept. 30.
SANTA YNEZ RIVER BASIN 143

Discharge, In cubic feet per second, of Santa Ynez River below Gibraltar Dam, near 

Santa Barbara, Calif., 1949-51 Continued

Day

1

2

3

4

5

6

7

8

9

10

11

]2

13

14

15

:.6

: 7 ' 8

' 9

20

21

22

23

24

25

26

27

26

29

30

31

Total

Mean

Ac- ft

Oct.

~05 0.05

.05

.06

.07

.11

.TO

.09

.06

.08

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.05

.05

.05

.05

.05

1.95

0.063

3.9

Nov.

0.04

.03

.04

.05

 2§

.08

.06

.06

.06

.06

.06

.06

.06

.06

.05

.05

.05

.06

.06

.06

.07

.06

.05

.05

.05

.07

.07

.07

.07

.07

-

1.76

0.059

3.5

Dec.

0.06

.06

.06

.05 . 05

.06

.06

.06

.06

.06

.06

.06

.05

.05

.05

.05

.05

.06

.06

.05

.05

.06

.06

.07

.OT

.07

.07

.07

.07

.06

.07

1.65

0.060

3.7

Jan.

0.06

.06

.06

.06

.07

.07

.06

.06

.06

.07

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.05

.04 .TJJ

1.64

0.059

3.6

Feb.

0.05

.05

.04

.03

.TO

.04

.04

.04

.04

.05

.05

.05

.05

.07

.10

.06

.07

.07

.07

.07

.07

.06

.06

.06

.06

.06

.06

.06

_

_

-

1.56

0.056

3.1

Mar.

0.06

.06

.06

.06

.06

.06

.05 .05"

.05

.05

.05

.05

.05

.06

.06

.06

.06

.06

.05

.07

.07

.07

.07

.06

.06

.06

.07

.06

.06

.07

.06

1.84

0.059

3.6

Apr.

0.06

.05

.04

.35

.05

.05

.05

.05

.05

.06

.06

.06

.05

.05

.06

.06

.06

.06

.05

.05

.05

.05

.05

.06

.06

.05

.05

.05

.05

.05

-

1.61

0.054

3.2

May

0.03 ~T04~

.05

.04

.04

.04

.05

.05

.04

.05

.05

.06

.06

.07

.04

.04

.05

.05

.05

.05

.05

.05

.04

.04

.06

.06

.05

.05

.06

.06

.04

1.51

0.049

3.0

June

0.06

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.06

.06 . 05

.06

.06

.05

.05

.06

.06

.06

.06

.06

.06

.06

.06

-

1.66

0.055

3.3

July

0.07

.06

.37

.05

.05

.05

.05

.06

.06

.06

.06

.06

.06

.06

.05

.05

.05

.06

.06

.06

.06

.06

.05

.05

.05

.05

.05

.05

.05

.05

.05

1.74

0.056

3.5

Aug.

0.06

.04

.04

.04

.05

.06

.05

.06

.06

.05

.04

.04

.03

.33

.03

.05

.07

.37

.07

.07

.06

.06

.05

.05

.04

.04

.04

.04

.04

.05

.06

1.54

0.050

3.1

Sept.

0.07

.06

.06

.05

.05

.05

.05

.04

.05

.04

.04

.09

.35

.07

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.05

.05

-

1.75

0.056

3.5

Calendar year 1950: Max 0.11 Mln 0 Mean 0.054 Ac-ft 39

Water year 1950-51: Max 0.11 Mln 0.03 Mean 0.057 Ac-ft 41

Note. Computed from once-daily hook gage readings Oct. 1-22.
144 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.

Records available. April 1947 to September 1951.

Gage. Water-stage recorder. Datum of gage is 794.52 ft above mean sea level, datum of 

1929 (Bureau of Reclamation bench mark).

Extremes.--1947-51; Maximum discharge, 191 cfs Mar. 10, 1949 (gage height, 4.77 ft); no 

flow for several months ea-h year.

Remarks. Records good. Discharge measurements generally made twice a month. Flow regulated by Jameson Lake and Gibralter Reservoir (see pp. 140,141 ). Water diverted out of 

basin from these reservoirs to cities of Montecito and Santa Barbara for municipal supply. Flow also affected by Intermittent local pumping for irrigation.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

3.0

3.1

3.2 .9

Discharge, In cubic feet per second, water year October 195O 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.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

C

0

.1

.3

.3

.4

.5

7K

.5

.5

.4

.2

.2

.3

.4

.4

.4

.2

.2

.1

0

O

0

0

0

O

0

0

0

0

5.9

0.19

12

Apr.

0

0

0

Calendar year 195O : Max 36 Mln O Mean O.47

May

0

O

0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept,

0

Q

0

Ac-ft 340

Water year 1950-51: Max O.5 Mln O Mean O.02 Ac-ft 12
SANTA YNEZ RIVER BASIN 145

Santa Cruz Creek above Stake Canyon, near Santa Ynez, Calif.

Location. Lat 34°37'40", long. 119°51'40", in San Marcos Grant, on left bank 1.5 miles 

upstream from Stuke Canyon Creek and 13 miles east of Santa Ynez, Santa Barbara County.

"'ecords available. May 1947 to November 1948 (irrigation seasons only), May 1949 to September 1951.

"age. Water-stage recorder.

Extremes.--Maximum discharge during year, 12 cfs Jan. 19 (gage height, 2.98 ft); no flow 

for many days.

1949-51: Maximum discharge, 500 cfs Feb. 6, 1950 (gage height, 7.53 ft), from rating 

curve extended above 17 cfs by logarithmic plotting; no flow for several days during 

each year.

Remarks.--Records good. Discharge measurements generally made twice a month. No diversion 

above station.

Rating table, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Mar. 23 to Apr. 7)

2.1

2.2

2.3 .5

2.4 1.2

.1

2.5 2.4

2.7 5.8

2.9 11

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

 o

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.

0.2

.5

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.5

.5

.2

.2

.2

.6

72

.2

.2

.2

6.3

0.20

12

Nov.

0.2

.2

.2

.1

.2

.2

.2

.2

.2

.2

.2

.5

.5

.3

.3

.3

.8

5.7

7.4

3.9

2.4

1.6

1.2

1.1

1.1

1.1

1.1

1.0

1.1

-

33.6

1.12

67

Dec.

1.1

T7T

1.4

2.1

2.1

1.6

1.5

1.4

1.4

1.3

1.5

1.4

1.4

1.6

2.1

2.5

1.8

1.6

1.6

1.6

1.6

1.5

1.4

1.4

1.5

1.6

1.5

1.4

1.4

1.4

48.3

1.56

96

Jan.

1.4

ils

1.8

1.9

1.9

1.8

1.8

1.8

2.7

3.5 4.0'

2.9

2.5

2.3

2.3

2.1

2.1

B-74 5.4

5.4

2.8

2.4

2.1

2.1

2.1

2.1

2.1

3.7

4.8

3.4

81.5

2.63 162

Feb.

3.2

2.8

2.8

2.8

2.8

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

2.

3.

3.

2.

3.

5 .

475

_

_

-

75.1

2.68

149

Mar.

8.2 679"

4.4

3.9

3.7

4.9

5.0

5.3

4.8

4'. 2

4.0

3.7

3.5

3.4

3.4

3.5

3.4

3.1

2.9

2.8

2.8

2.8

2.7

2.5

2.4

2.5

2.4

2.1

271

2.1

2.1

111.5

3.60

221

Apr.

2.0

2.0

2.1

2.4

2.4

2.4

2.3

2.3

2.1

1.9

1.9

1.8

1.6

1.5

175

1.6

1.6

1.6

2.0

2.0

2.0

1.8

1.6

1.5

3.1

3.4

2.5

3.0

4.0

374

-

65.3

2.18

130

May

2.8

2.4

2.1

2.1

2.1

2.1

1.9

1.6

1.5

1.4

1.3

1.2

1.2

1.2

1.2

1.1

1.0

.8

.8

.8

.7

.8

.7

.6

.4

.3

.2

72

.2

.2

.2

3b.l

1.13

70

June

0.2

.2

.2

.2

.3

.3

.3

.4

74

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

7T

-

6.8

0.23

13

July

0.1

.2

72

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

.1.1

0

0

0

c

0

0

2.1

0.07

4.2

Aug.

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

0

0

0

.!_

0.1

0.003

0.2

Sept.

0.1 ^

0

V

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1

.1

-

1.0

0.03

2.0

Calendar year 1950: Max 160 Mln 0 Mean 4.01 Ae-ft 2,900

Water year 1950-51: Max 8.2 Min 0 Mean 1.28 Ao-ft 926
146 SANTA YNEZ RIVER BASIN

Santa Cruz Creek near Santa Ynez, Calif.

Location.--Lat 34°34'40", long. 119°55'50", in Tequepis Grant, on right bank 0.5 mile upstream from mouth and 10 miles southeast of Santa Ynez, Santa Barbara County.

Drainage area. 77.2 sq mi.

Records available. October 1941 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 700 ft (from topographic map). Prior to 

Tan. 22, 1943, at site 900 ft downstream at different datum (destroyed by flood).

Average discharge.--9 years {1941-42, 1943-51), 8.10 cfs.

Extremes.--Maximum discharge during year, 1.5 cfs Mar. 2 (gage height, 1.53 ft); minimum 

daily, 0.1'cfs on many days December to February.

1941-51: Maximum discharge not determined, occurred Jan. 22, 1943; minimum daily, 

0.1 cfs on many days during period January to March 1948, December 1950 to February 1951.

Remarks.--Records good. Discharge measurements generally made twice a month. No diversion above station.

Rating table, water year 195O-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Dec. 27 to Jan. 24, 

Feb. 21 to Mar. 2, May 11 to Sept. 30)

1.2 0.1

1.3 .4

1.4 1.2

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 

17

18

19

20

<;l

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

2i|

].

t t

\,

1_

Is

12.3

0.40

24

Nov.

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

Dec.

~0.3 

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.'l

.1

6.6

0.21

13

Jan.

^TT

!i

.2

72

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

5.0

0.16

9.9

Feb.

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

_

-

2.8

0.10

5.6

Mar.

0.5 

1.0

.4

tf

.4

.6

.6

.8

.8

.7

.7

.8

.8

.8

.7 

.7

.7

.7

.7

.8

.9

1.0

.9

.9

1.0

.9

1.0

1.0

1.0

1.0

23.4

0.75

46

Apr.

l.o

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

1.0

1.0

1.0

1.0

1.0

.9

75

.9

.9

1.0

1.0

1.2

29.8

0.99

59

May

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

.0

1.0

1.0 

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.8

.7

.7

.7

jS

28.5

0.92

57

June

0.6 

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6 

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

75

.5

-

18.3

0.61

36

July

0.5

'.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5 

.5

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.5

15.0

0.48

30

Aug.

0.5

'.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

ft

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.3

.3

.3

12.2

0.39

24

Sept.

0.3 

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2r-

.2 

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

-

8.5

0.28

17

Calendar year 1950 : Max 340 Min 0.1 Mean 3.72 Ac-ft 2,690

Water year 1950-51: Max 1.2 Hin 0.1 Mean O.47 Ac-ft 340

Peak discharge (base. 100 cfa). No peak above base.
SANTA YNEZ RIVER BASIN 147

Cachuma Creek near Santa Ynez, Calif.

Location.--Lat 34°37'40", long. 119°55'35", in Tequepis Grant, on left bank 1.4 miles 

downstream from Lazaro Canyon, 3.6 miles upstream from mouth and 8f miles east of 

Santa Ynez, Santa Barbara County.

Records available.--October 1950 to September 1951.

Uage.--Water-stage recorder. Altitude of gage is 930 ft (from topographic map).

Extremes.--Maximum discharge during year, 56 cfs Nov. 19 (gage height, 3.24 ft); no flow 

for several months.

Remarks.--Records good. Discharge measurements generally made twice a month. No diversion above station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.85

1.9

2.0

2.1

.4 

1.1

Discharge, In cubic feet per second, water year October 195o to Septemoer 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.

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

21

.6.2

1.1

.1

0

0

0

0

o

0

0

0

-

28.4

0.95

56

Dec.

0

0

0

'.4

8.7

0.28

17

Jan.

0.474"

1.0

1.2

.9

.8

.8

.8

.7

.6

1.0

.9

.8

.8

.8

.8

.8

.8

.8

.8

1.4

1 .2

1.0

23.0

0.74

46

Feb.

1.0

1.0

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.7

.8

.8

.7

.7

.7

.7

.7

.7

.8

.8

..6.

.8

1.3

1.2

-

-

-

23.1

0.82

46

Mar.

2.1

1.6

.3

.3

.3

.6

.4

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.9

.9

.8

.8

.8

.8

.7

.7

.7

.6

.6

.6

.6

.6

32.3

1.04

64

Apr.

0.6

.6

.6

.6

 6

.6

-.6

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.5

.4

.4

.4

.4

.4

.6

.4

.4

.6

.6

.5

-

14.6

0.49

29

May

0.4

.4

.4

.4

.4

.3

.3

.3

.4

.4

.4

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

8.1

0.26

16

June

0.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

o

0

0

0-

0.2

0.01

0.4

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max - Mln - Mean - Ac-ft -

Water year 1950-51: Max 21 Mln 0 Mean 0.38 Ac-ft 274

Note. No gage-height record Oct. 1-25; discharge estimated on basis of weather records and records for nearby stations .

Santa Ynez River near Santa Ynez, Calif.

Location.--Lat 34°35'20", long. 120°01'25" > in Canada de los Pinos Grant, on downstream

side of right pier at San Lucas Bridge, 500 ft upstream from Santa Agueda Creek and

4 miles southeast of Santa Ynez, Santa Barbara County. 

Drainage area.--435 sq mi.

Hecords available .--December 1928 to September 1931, October 1932 to September 1951. 

Uage.--Water-stage recorder. Datum of gage is 497.02 ft above mean sea level, datum of

T929 (Bureau of Reclamation bench mark). 

Average discharge.--21 years (1929-31, 1932-51), 94.1 cfs; median of yearly mean discharges, uu crs. 

Extremes.--No flow during year. 

 1929-31, 1932-51: Maximum discharge, 43,700 cfs Mar. 2, 1938 (gage height, 17.90

ft), from rating curve extended above float measurement of 34,100 cfs; no flow at

times during some years. 

Remarks.--No flow since June 7, 1950. Observations of no flow generally made twice a

month. Plow regulated by Jameson Lake and Gibraltar Reservoir (see pp. ). Water

diverted out of basin from these reservoirs to cities of Montecito and Santa Barbara

for municipal supply. Some water pumped from wells along river banks for irrigation.

Figures for calendar year 1950 are as follows: maximum daily discharge, 222 cfs;

minimum, zero cfs; mean, 2.14 cfs; runoff, 1,550 acre-ft.
148 SANTA YNEZ RIVER BASIN

Santa Agueda Creek near Santa Ynez, Calif.

Location. Lat 34°35 I 40", long. 120°01'30", In Canada de los Plnos Grant, on downstream 

right tank wing wall of highway bridge, 0.8 mile upstream from mouth and 3.5 miles 

southeast of Santa Ynez, Santa Barbara County.

Drainage area.--56.4 sq mi.

Records available.--January 1941 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 520 ft (from topographic map). Prior to 

Ipr. 17, 1950, on left bank at same site and datum.

Average discharge. 10 years, 2.29 cfs; median of yearly mean discharges, 1.2 cfs.

Extremes. Maximum discharge during year, 125 cfs Nov. 19 (gage height, 1.94 ft); no flov 

for several months.

1941-51: Maximum discharge, 1,580 cfs Mar. 3, 1941 (gage height, 4.60 ft); no flor 

at times in 1949, 1950, and 1951.

Remarks. Records fair. Discharge measurements generally made twice a month. Small diversions above station for irrigation.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.3 

2.7

0.9 

1.0 

1.2 

1.5

4.7

7.6

17

Discharge, in cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

36

~S. 2

0

0

0

0

0

0

.1

.1

.1.1

-

41.6

1.39

33

Dec.

~nr 0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

.1.1.1

.1.1

.1

.1

.1

.1

.1

.1

2.9

0.09

5.8

Jan.

0.1.1

.1

.1

.1

.1.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.4

72

.2

3.9

0.13

7.7

Feb.

 0.1

.1

.1

.1

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

_

-

3.3

0.12

6.5

Mar.

0.1

T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

72

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

3.3

0.11

6.5

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

-

3.0

0.10

6.0

May

0

S 

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

_a

.1.1

.1

.1

0

0

0

0

0

0

0

0.5

0.02

1.0

June

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 36 Mln 0 Mean 0.32 Ac-ft 231

Water year 1950-51: Max 36 Kin 0 Mean 0.16 Ac-ft 116

Peak discharge (base, 50 efs).--Hov. 19 (12:30 p.m.) 125 cfs (1.94 ft).
SANTA YNEZ RIVER BASIN 149

Santa Ynez River at Solvang, Calif.

Location.--Lat 34"35'10", long. 1SO°08'40", in San Carlos de Jonata Grant, near center of 

span on downstream side of Mission Bridge, 25 ft downstream from Alisal Creek and 0.9 

mile south of Solvang, Santa Barbara County.

Drainage area. 585 sq mi.

Records available.--October 1928 to November 1936, June i937 to November 1940 (irrigation 

seasons only), October 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 350 ft (from topographic map). Various 

ffatums used during period of record.

Average discharge. 13 years (19S8-36, 1946-51), 30.4 cfs; median of yearly mean discharges, la el's.

Extremes. Maximum discharge during year, 12 cfs Mar. 1 (gage height, 3.66 ft); no flow 

Oct. 1-22, June 5 to Sept. 30.

19S8-36, 1946-51: Maximum daily discharge, 12,300 cfs Feb. 9, 1932; no flow for 

several months during 1948-51.

Remarks.--Records fair. Discharge measurements generally made twice a month. Plow reguiated by Jameson Lake (see p. 140 ) and Gibraltar Reservoir (see p. 141). Water diverted out of basin from these reservoirs to cities of Montecito and Santa Barbara. Some 

water for irrigation pumped from wells along banks of river in valley above station.

Discharge, in cubic feet per second, water year October 195O 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.

O

0

0

0

0

O

0

0

0

0

0

0

0

0

0

O

0

0

0

0

0

0

.2

.2

.8

1.7

2.0

2.1

2.2

2.6

2.8

14.6

0.47

29

Nov.

2.8

2.6

2.2

2.0

1.8

2.0

2.4

2.8

3.0

3.0

2.8

2.2

3.1

3.8

3.8

3.6

4.0

4.5

5.1

5.1

4.8

4.5

4.5

4.5

4.3

4.3

4.3

4.3

4.3

4.3

-

106.7

3.56

212

Dec.

.3

.3

.3

.5

.3

.3

.3

.3

.0

.8

.8

.0

.0

.3

.3

.3

.3

.5

.3

.3

.3

.5

.5

.5

.8

.8

.5

.5

.3

.3

.3

133.8

4.32

265

Jan.

4.3

4.3

4 0

478

5.1

5.1

5.1

4.8

4.8

6.1

6.9

6.9

6.2

5.9

5.9

5.6

5.3

5.1

5.1

5.1

5.3

5.3

5.1

5.1

5.3

5.3

5.1

5.1

6.2

5.3

5.1

164.6

5.31

326

Feb.

5.1

5.1

5.1

5.1

4.8

4.8

4.5

4.3

4.5

4.5

4.8

4.8

4.0

3.8

3.8

3.6

3.8

3.6

3.4

3.2

3.0

2.8

3.0

2.6

3.0

3.5

4.4

5.1

_

_

-

114.0

4.07

226

Mar.

10

8.4

7.6

6.6

6.6

6.2

5.9

5.6

5.6

5.3

5.1

5.3

5.3

5.1

5.1

4.8

4.8

5.1

5.3

3.8

2.8

2.4

2.2

2.2

2.0

1.8

2.0

1.8

1.6

1.3

1.1

138.7

4.47

275

Apr.

0.9

.8

.8

.8

.8

.8

.8

.7

.7

1.2

1.6

1.6

1.6

1.0

1.0

.9

.9

.9

1.0

.9

.8

.8

.7

.8

1.6

1.7

1.8

2.2

3.2

5.8

37.1

1.24

74

May

4.3

4.3

3.8

3.6

3.0

2.6

2.1

2.0

2.0

1.7

1.2

1.1

1.0

.9

.8

.8

.8

.7

.6

.6

.6

.5

.4

.3

.4

.4

.3

.3

.3

.3

.3

42.0

1.35

83

June

0.2

.2

.1

.1

0

0

0

0

0

0

0

0

0

O

0

0

0

O

0

0

0

0

0

0

0

0

0

O

0

0-

0.6

0.02

1.2

July

0

0

O

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 160 Mln 0 Mean 4.12 Ac-ft 2,980

Water year 195O-51: Max 10 Min O Mean 2.06 Ac-ft 1,490

Peak discharge (base. ISO cfs). No peak above base. 

256498 O - 53 - 11
150 SANTA YNEZ RIVER BASIN

La Zaca Creek at Buellton, Calif.

Location.--Lat 34°36'35", long. 120°11 I 15", in San Carlos de Jonata Grant, on right bank 

at culvert on State Highway 150 in Buellton, Santa Barbara County, and 1 mile above 

mouth.

Drainage area.--38.7 sq mi.

Records available.--January 1941 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 340 ft (from topographic map).

Average discharge.--10 years, 0.22 cfs; median of yearly mean discharges, 0.04 cfs.

Extremes. Maximum discharge during year, 6.8 cfs Oct. 26 (gage-height, 2.64 ft); no flow 

during most of year.

1941-51: Maximum discharge, 874 cfs Mar. 3, 1941; maximum gage height, 6.80 ft 

Mar. 4, 1941; no flow during most of each year.

Remarks.--Records fair. Observations of no flow generally made twice a month. No appreciable diversions above station. 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 1950 to September 1951

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

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

0

0

0.1

Q.003

0.2

Nov.

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

0

-

0.1

0.003

0.2

Dec.

0

0

0

Jan.

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

0.1

0.003

0.2

Feb.

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

_

_-

0.2

0.007

0.4

Mar.

0.2 0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

i 0

0

0

0

0

0

0

0

0

0

0

0

0.2

0.006

0.4

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 1950: Max 0.6 Mln 0 Mean 0.005 Ac-ft 3.6

Water year 1950-51: Max 0.2 Mln 0 Mean 0.002 Ac-ft 1.4

Peak discharge (base. 10 efs). No peak above base.
SANTA YNEZ RIVER BASIN 151

Santa Ynez River near Buellton, Calif.

Location.--Lat 34°36'50", long. 120°14i30", in Nojoqui Grant, on left bank 0.5 mile downstream from Canada de los Palos Blancos and 3 miles west of Buellton, Santa Barbara 

County.

Records available.--June 1948 to September 1951 (irrigation seasons only).

Gage.--Water-stage recorder. Prior to Apr. 25, 1950, at site 200 ft downstream at different datum.

Remarks.--Records good. Discharge measurements generally made twice a month during irrigation season. Flow regulated at Jameson Lake and Gibraltar Reservoir. Water diverted 

out of basin from these reservoirs to cities of Montecito and Santa Barbara. Flow also 

affected by pumping from wells along river for irrigation.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

13

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

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.3

.3

.4

.5

tf

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

-

10.3

0.34

20

Dec. Jan. Feb. Mar. Apr. May

~T9 0.9

.7

.7

.5

.1

0

O

0

.1

.2

.3

.3

.4

.4

.5

.5

.4

.4 

.4

.4

.4

.4

.4

.2

.2

.2

.2

.2

.2

.2

10.7

0.35

21

June

0.2

0

0

.1

0

0

0

o

o

0

0

0

0

0

o

o

o

0

0

o

o

o

0

0

.1

-

0.9

0.03

1.8

July

~T0 1

1

1

1

O

0

.1

.1

.1

.1

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0.9

0.03

1.8

Aug.

0

0

0

Sept.

0

0

0

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft
SAMTA YNEZ RIVER BASIN

Salsipuedes Creek near Lompoc, Calif.

Location. Lat 34"34"55", long. 120°24'35", near northern edge of San Julian Grant, on 

 right bank at highway bridge on Jalama road, just downstream from El Jaro Creek and 

5 miles southeast of Lompoc, Santa Barbara County.

Drainage area.--46.6 sq mi.

Records available. January 1941 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 230 ft (from topographic map).

Average discharge. 10 years, 5.36 cfs; median of yearly mean discharges, 2.5 cfs.

Extremes.--Maximum discharge during year, 32 cfs Mar. 1 (3.32 ft); practically no flow

1941-51: Maximum discharge, 7,190 cfs Mar. 3, 1941 (gage height, 19.95 ft), from 

rating curve extended above 3,800 cfs by logarithmic plotting; practically no flow Oct. 

1-16, 19, 1950.

Remarks.--Records good. Discharge measurements generally made twice a month. Small diversions for irrigation above station.

Discharge, in cubic feet per second, water year October 1950 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.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1

0

.1

.1

.1

.1

.1

.1

.1

.4

.3

.2

.2

.2

2.2

0.07

4.4

Nov.

0.2

~.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

il

.2

.2

.1

.1

.1

.1

.1

.2

.2

.2

-

3.9

0.13

7.7

Dec.

0.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.3

.3

7.3 

0.24

14

Jan.

0.5

]3

.4

.5

.4

.4

.4

.4

1.1

2.7

3.6

1.6

.9

.8

1.0

.8

.8

2.3

1.6

1.1

1.0

.9

.8

.8

.8

.8

.7

1.1

1.3

1.0

30.9 

1.00

61

Feb.

0.8

.7

.7

.7

.8

.8

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.6

.6

.6

.6

.6

1.0

1.9

1.3

1.4

£.0

3.2

_

_

-

27.8 

0.99

55

Mar.

~5.e 16

3.1

2.2

2.0

1.7

1.5

1.3

1.1

1.1

1.0

.8

.8

.8

.8

.8

.8

.8

.7

.7

.6

TS

.6

.6

.6

.7

.6

.6

.6

.6

.6

50.5 

1.63

100

Apr.

0.6

.5

.5

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.4

74

.4

.4

.4

.6

.6

.5

.4

.4

.4

1.2

1.1

.7

1.1

2.3

Z^O

-

20.1 

0.67

40

May

1.0

.8

.7

.7

.7

.6

.5

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

_ _!

.1

.1

.1

.1

.1

.1

9.5 

0.31

19

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

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

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 1950 : Max isO Min 0 Mean 1.55 Ac-ft 1,120

Water year 1950-51 : Max 16 Min 0 Mean 0.45 Ac-ft 325

Peak discharge ("base, 100 cfs).--No peak above base.
SANTA YNEZ RIVER BASIN 153 

Santa Ynez River at narrows, near Lompoc, Calif.

Location.--Lat 34°38'10", long. 120°25'30", in Canada de Salsipuedes Grant, on left bank 

0.5 mile upstream from Robinson Bridge, 2.0 miles downstream from Salsipuedes Creek, 

and 2 miles east of Lompoc, Santa Barbara County.

Records available.--April 1947 to September 1951 (irrigation seasons only). 

Gage.--Water-stage recorder.

Remarks.--No flow during irrigation season, Oct. 1 to Nov. 30, May 1 to Sept. 30. Flow 

regulated by Jameson Lake and Gibraltar Reservoir. Water diverted out of basin from 

these reservoirs to cities of Montecito and Santa Barbara. Flow also affected by 

pumping from wells along river for irrigation.

Santa Ynez River near Lompoc, Calif.

Location.--Lat 34°38'30", long. 120°25'50", near east boundary of La Mission Vieja de la 

Purlsima Grant, on downstream side 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 1951.

Gage.--Water-stage recorder. Datum of gage is 79.28 ft above mean sea level, datum of 

1929. Prior to Dec. 14, 1928, staff gage at site 600 ft upstream at various datums. 

Dec. 14, 1928, to Nov. 30, 1939, water-stage recorder at site 600 ft upstream at 

various datums.

Average discharge. 26 years (1925-51), revised, 125 cfs; median of yearly mean discharges, 

4y crs.

Extremes.--No flow during year.

 ^T908-18, 1925-51: 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.--No flow since Apr. 12, 1950. Figures for calendar year 1950 are given below. 

Observations of no flow generally made twice a month. Flow regulated by Jameson Lake 

and Gibraltar Reservoir (see pp. 140, 141). Water diverted out of basin from these 

reservoirs to cities of Montecito and Santa Barbara for municipal supply. Some water 

pumped from wells along river banks for irrigation. Figures for the calendar year are 

as follows: maximum daily discharge, 235 cfs; minimum daily, zero; mean, 1.93 cfs; 

runoff, 1,390 acre-ft.

Revisions (water years). W 611: Drainage area. W 931: 1914-40(M). W 981: 1938(M).
154 SANTA YNEZ RIVER BASIN

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

Location. lat 34°40'10", long. 120°27'20", in Lompoc Grant, near center of channel on 

downstream side of H Street Bridge on State Highway 1, 2 miles north of Lompoc Santa 

Barbara County.

Records available.--April 1947 to September 1951.

C' ag?uJqWatel'' stage recorder - Datum of gage is 56.74 ft above mean sea level, datum of

Extremes.--No flow during year.

~T¥47-51: Maximum discharge, 1,500 cfs Mar. 10, 1949 (gage height, 8.86 ft)- from 

rating curve extended above 420 cfs by logarithmic plotting; no flow during large parts 

of each year. ^

Remarks --No flow since Feb. 17, 1950. Observations of no flow generally made twice a 

month. Plow regulated by Jameson Lake and Gibraltar Reservoir. Water diverted out of 

basin from these reservoirs to cities of Montecito and Santa Barbara Pumpage from 

wells along river for irrigation affects surface flow at this station. Figures for 

calendar year 1950 are as follows: total cfs-days 315.3; maximum daily discharge, 220 

cfs; minimum daily, zero; mean, 0.86 cfs; runoff, 625 acre-ft.

Santa Ynez River at barrier, near Surf, Calif.

Location --Lat 34°41'25", long. 120°35'30", in Lompoc Grant, on upstream side at center 

ol salt-water barrier, 1.0 mile upstream from mouth and 1.2 miles east of Surf Santa Barbara County.

Records available.--May 1947 to September 1951.

Gage. --Water-stage recorder and compound broad-crested weir. Datum of gage i-s 5 5 ft 

above mean sea level, datum of 1929.

Extremes.--Maximum discharge during year, 1.6 cfs Mar. 1 (gage height, 1.17 ft)- no flow 

during several months.

1947-51: Maximum discharge, 670 cfs Mar. 11, 1949 (gage height, 2.58 ft), from 

rating curve extended above 11 cfs on basis of wier table; no flow during several 

months of each year.

Remarks.--Records poor. Discharge measurements generally made twice a month. Plow regulated by Jameson Lake and Gibraltar Reservoir. Water diverted out of basin from these 

reservoirs to cities of Montecito and Santa Barbara. Pumpage from wells along river 

for irrigation affects flow at this station.

Discharge, in cubic feet per second, water year October 195O 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.

0

0

O

0

0

O

O

0

O

O

O

0

O

0

0

0

0

0

0

0

0

O

O

O

O

0

.1

.2

71

.1

.2

0.7

0.02

1.4

Nov.

0.2

~.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

4.5

O.15

8.9

Dec.

0.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

TT

.1

.1

.2

.2

.2

.2

.2

.2

6.4

0.21

13

Jan.

O.2

.1

.2

.3

.4

.3

.3

.2

.3

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.2

.3

.5

.4

.3

.3

.3

.4

.5

.5

.6

.6

8.4

O.27

17

Feb.

0.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.8

.5

.5

.5

.5

.5

.6

.5

.4

.5

.3

.3

.4

.5

.4

.9

1.0

_

-

14.7

0.52

29

Mar.

0.7

.9

.8

.9

1.1

1.2

172

1.2

1.2

1.2

1.0

.9

.9

.8

.9

1.0

.9

.7

.7

.8

.8

.8

.6

.6

.6

.6

.6

.b

.7

.8

.7

26.4

O.85

52

Apr.

0.6

.5

.5

.7

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.4

.3

.3

.3

.4

.4

.3

.2

.2

.1

79

1.0

175

.5

.9

1.0

-

16.1

0.54

32

May

1.0

l.O

.9

.9

.9

.9

.7

.6

.4

.5

.6

.6

.5

.4

.3

.3

.3

.3

.3

.3

.4

.3

.3

.3

.3

.3

.2

72

.3

.2

.2

14.7

0.47

29

June

0.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

3.2

0.11

6.3

July

0.1

. 1

!i.1.1

.1.1.1.1

0

0

0

0

o

O

0

o

o

o

0

o

o

0

0

o

0

0

0

o

0

0

0.9

0.03

1.8

Aug.

0

0

o

Sept.

O

O

0

Calendar year 195O: Max 80 Mln O Mean 0.69 Ac-ft 503

Water year 1950-51: Max 1.2 Mln O Mean 0.26 Ac-ft 190
SAN ANTONIO CREEK BASIN 155

San Antonio Creek at Harris, Calif.

Location. Lat 34°45'45", long. 120°25'40", in Los Alamos Grant, on left bank jiut downstream from highway bridge, 0.25 mile south of Harris, Santa Barbara County, and 0 6 

mile upstream from Harris Canyon Creek.

Drainage area. 101 sq mi.

Records available. January 1941 to September 1951.

(.iage.--water-stage recorder. Datum of gage is 306.56 ft above mean sea level, datum of 

T929. Prior to May 5, 1942, at site 0.5 mile downstream at datum 17.62 ft lower.

Average discharge.--10 years, 0.89 cfs; median of yearly mean discharges, 0 2 cfs

Extremes.--wo now during year.

1941-51: Maximum, discharge, 1,880 cfs Mar, 3, 1941 (gage height, 10.1 ft, site and 

datum then in use), from rating curve extended above 480 cfs by logarithmic plotting; 

no flow during a. large part of each year.

Remarks.--No flow since Mar. 25, 1950. Figures for calendar year 1950 are given below. 

Observations of no flow generally made twice a month. Pumpage from wells along stream 

for irrigation affects surface flow at this station. Figures for calendar year 1950 

are as follows: total cfs-days, 2.1; maximum daily, 1.6 cfs; minimum daily, zeromean, 0.006 cfs; runoff, 4.2 acre-ft.

SANTA MARIA RIVER BASIN

Cuyama River near Ventucopa, Calif.

Location.--Lat 34°41'10", long. 119°21'30", in NEtrSW£ sec. 19, T. 7 N., R. 23 W., on downstream side near left end of Ozena Bridge on U. 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.

Hecoras available. November 1944 to September 1951.

uage.--water-stage recorder. Altitude of gage is 3,500 ft (from topographic map). Alternate water-stage recorder near right bank at datum 2.60 ft higher. Prior to Mar. 15, 

1946, right bank gage only.

Average discharge.--6 years (1945-51), 3.68 cfs.

extremes. maximum discharge during year, 80 cfs Jan. 29; maximum gage height, 4.40 ft 

Apr. 30; no flow on days during July, August, and September.

1945-51: Maximum discharge not determined, probably occurred Mar. 30, 1946; no flow 

for many days in July, August, and September 1951.

Remarks.--Records poor. Discharge measurements generally made twice a month. Minor diversions above station for irrigation.

Discharge, In cubic feet per second, water year October 1950 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

Tota]

Mean

Ac- ft

Oct.

0.4

T?

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.6

.6

.878-

.8

.8

.8

.6

.8

.8

.8

16.7

0.54

33

Nov.

0.8 ~79~

.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.0

TTff

1.0

-

26.5

0.88

53

Dec.

0.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.0

T70

.9

1.0

1.0

.9

.8

Tff

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.9

.9

.9

27.1

0.87

54

Jan.

~79~ 0.9

.9

1.0

.9

.9

.9

1.0

1.2

2.1

2.7

2.7

1.4

1.4

al.4

al.3

al.3

al.3

al.2

al.2

al.l

al.l

al.l

al.O

al.O

1.0

1.0

1.0

21~3-.7

1.0

60.6

1.95

120

Feb.

1.0

.9

1.2

1.0

.9

.9

.9

.9

1.0

1.0

1.0

1.2

1.0

.8

Tff

.9

.9

.8

.9

.9

.9

.9

1.2

1.6

174

1.4

1.6

1.2

_

-

29.1

1.04

58

Mar.

2.1

5.5

4.0

4.8

9.1

3.3

1.8

1.4

1.4

1.4

1.6

1.6

1.6

1.6

1.0

.9

1.0

1.0

1.4

1.2

1.2

1.2

.9

.878"

.9

.9

.9

.9

.9

.9

56. 0

1.87

115

Apr.

0.9

.9

.9

1.0

1.2

1.2

1.2

1.2

al.O

al.O

al.O

a. 8

a. 8

a. 8

a. 8

a. 6

a. 6

a. 6

.5

.5

.5

.4

71

.4

1.2

1.0

.6

1.0

3.3

18

-

44.3

1.48

88

May

1.4

1.6

T74

1.2

l.E

1.0

.9

.9

.8

..5

.5

.5

.5

.6

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

a. 6

a. 5

a. 5

a. 5

a. 4

aTf

a. 4

21.9

0.71

43

June

aO.3

aTS

a.3

a. 2

a. 2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.3

.2

.2

.2

a. 2

a. 2

.2

.2

.2

.2

.2

.2

.2

.1

7T

-

6.3

0.21

12

July

0.1 ~~7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

V

0

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

1.6

0.05

3.2

Aug.

aO0"

0

0

0

0

0

0

0

0

0

0

aO

aO

aO

0

0

0

0

0

0

0

0

.1

7T

.1

.1

.1

0

.1.1

0.7

0.02

1.4

Calendar year 1950: Max 119 Mln 0.1 Mean 1.98 Ac-ft 1,430

Sept.

~7T 0.1

.1

.1

.1

.1

.1

.1

.1

.1

~. 0 1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1.1

.1

-

1.6

0.05

3.2

Water year 1950-51: Max 21 Mln 0 Mean 0.81 Ac-ft 584

Peak discharge (base, 50 efs). Jan. 29 (6 p.m.) 80 cfs (4.37 ft); Apr. 30 (1:30 p.m.) 52 cfs (4.40 ft). 

a Ho gage-height record; discharge estimated on basis of weather records and records for Sespe 

Creek near Wheeler Springs.
156 SANTA MARIA RIVER BASIN

Cuyama River near Santa Maria, Calif.

Location.--Lat 35°00'50", long. 120°16'45", in Suey Grant, on right bank 60 ft downstream 

from Highway bridge, 3 miles upstream from Alamo Creek, and 10 miles northeast of Santa 

Maria, Santa Barbara County.

Drainage area.--912 sq mi.

Records available. December 1929 to September 1951.

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, 1945, 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.--21 years (1930-51), 21.3 cfs; median of yearly mean discharges, 11 cfs.

Extremes.--Maximum discharge during year, 18 cfs Jan. 12; maximum gage height, 2.51 ft 

Mar. 2; no flow for several months.

1929-51: Maximum discharge, 17,300 cfs Mar. 3, 1938 (gage height, 16.6 ft, site and 

datum then in use), result'of slope-area determination of peak flow; no flow at times 

during some years.

Remarks.--Rec ords good. Discharge measurements generally made twice a month. Some pumpage 

for irrigation from wells along stream above station.

Revisions.--W 931: Drainage area.

Discharge, In cubic feet per second, water year October 1950 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

Tota:

Mean

Ac- ft

Oct.

O

0

0

Nov.

0

c

0

0

o

0

o

0

0

o

o

0

0

0

0

0

0

0

2.1

174

1.1

.2.1

.1

.1

.1

.1

.1.1

.1

-

5.6

0.19

11

Dec.

0.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

jA_

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.3

.3

.3

.3

.3

.3

7.7

0.25

15

Jan.

T4" 0.4

.4

.4

.6

.4

.4

.4

.4

.8

1.6

6.8

2.6

2.8

3.0

3.4

3.Z

3.8

7.0

674

5.0

4.0

3.6

3.4

3.8

3.8

3.8

4.0

5.8

6.4

5.3

94.1

3.04

187

Feb.

5.3

5.6

7.5

7.5

6.1

5.6

5.3

5.3

5.6

5.3

5.6

5.8

4.2

3.8

3.4

3.4

2.6

2.1

1.7

273

2.0

Z.I

2.4

2.3

2.1

4.1

6-.1

5.4

_

_

-

120.5

4.30

239

Mar.

11

TT

7.1

6.4

5.8

5.6

5.3

4.5

4.2

4.5

4.8

3.6

3.6

3.6

3.4

3.4

3.0

2.4

2.1

2.0

1.7

1.6

1.4

1.5

1.5

1.6

1.4

1.2

1.3

1.2

1.1

112.8

3.64

224

Apr.

.2

.8

.9

.8

.8

.8

.8

.8

.8

.8

1.4

1.3

.8

2.1

2.6

27T

-

31.8

1.06

63

May

T72~ 1.4

1.0

1.1

1.3

1.2

.8

1.1

1.0

.8

.7

.6

.6

.6

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.3

.2

.2

.2

.2

.3

19.6

0.63

39

June

0.3

.2

.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

.2

-

7.7

0.26

15

July

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.3

0.14

8.5

Aug.

0.1

.1

o

c

0

0

o

0

0

o

0

0

o

0

o

0

0

0

o

0

0

0

0

o

0

0

0.7

0.02

1.4

Sept.

O

O

O

Calendar year 1950: Max 78 Mln 0 Mean 2.81 Ac-ft 2,03O

Water year 195O-51: Max 11 Mln O Mean 1.11 Ac-ft 803

Peak discharge (base, 20O cfs). No peak above
SANTA MARIA RIVER BASIN 

Alamo Creek near Santa Maria, Calif.

157

Location.--Lat 35°00 I 40", long. 120 0 18'45", 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 1951.

 T929. Gage.--Water-stage recorder. Datum of gage is 581.14 ft above mean sea level, datum of

Average discharge.--8 years, 2.02 cfs.

Extremes.--Maximum discharge during year, 248 cfs Oct. 27 (gage height, 3.92 ft); minimum

 daily, 0.1 c-fs Oct. 3, 4, 6-16.

1943-51: Maximum discharge, 700 cfs Feb. 2, 1945 (gage height, 4.34 ft); minimum 

daily, less than 0.1 cfs in 1949 and 1950.

Remarks.--Records good except those above 10 cfs, which are fair. Discharge measurements 

generally made twice a month. No diversion above station.

Rating table, water year 195O-51 (gage height, in feet, and discharge, in

cubic feet per second) 

(Shifting-control method used Apr. 23 to Sept. 3, Sept. 21-30)

2.4

2.5

2.8 

3.0 

3.2 

1.3 2.7 9.1 3.4 81 

Discharge, in cubic feet per second, water year October 1950 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.

0.2

.2

.}

. ^

 2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

13

.9

.7

.6

.6

19.8

0.64

39

Nov.

0.5

.4

.3

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

1.2

75

45

9.6

2.3

2.0

1.7

1.6

1.4

1.3

1.2

1.1

1.2

-

150.2

5.01

298

Dec.

0.9 ~79

.8

.8

.8

.7

.8

.7

.6

.6

.6

.6

.5

.6

.5

.5

.5

.5

.6

.6

.6

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

20.2

0.65

40

Jan.

0.6

.6

.6

.6

.6

.5

75

.5

.5

.6

2.6

1 . 2

.6

.7

.8

.8

.8

.9

1.6

.8

.7

.8

.8

.8

.7

.8

.7

.6

.6

.6

.5

24. O

0.77

48

Feb.

0.5

. 5

.6

.7

.7

.6

.6

.8

.8

.8

.8

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.6

.5

.5

.7

.8

.9

_

_

-

17.7

0.63

35

Mar.

1.0

.9

.9

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

21.7

0.70

43

Apr.

0.6

.6

.6

.b

.6

.7

.7

.7

.6

.7

.7

.7

.7

.7

.6

.7

.7

.7

.6

.7

.6

.6

.6

.6

.8

.7

.6

1.0 ~T9

.8

-

20.4

0.68

40

May

0.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.4

.4

.4

19.7

0.64

39

June

0.4 ~T4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.4

.4

.4

.4

.4

.4

-

12.6

0.42

25

July

0.4

.5

.5

.4

.4

.4

.4

.3

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

11.4

0.37

23

Aug.

0.5

.4

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.2

73

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

10.1

0.33

20

Sept.

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

0.3O

18

Calendar year 1950: Max 271 Min - Mean 1.79 Ac-ft 1,300

Water year 1.95O-51: Max 75 Min 0.1 Mean O.92 Ac-ft 668

Peak discharge (base, 5 cfs). Oct. 27 (l:3O a.m.) 248 cfs (3.92 ft); Nov. 19 (6:30 p.m.) 209 cfs 

1(3.83 ftj; Jan. 11 (4:30 p.m.) 22 cfs (2.93 ft).
158 SANTA MARIA RIVER BASIN

Huasna River near Santa Maria, Calif.

Location.--Lat 35°01'20", long. 12G°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 1951.

Gage.--Water-stage recorder. Altitude of gage is 600 ft (from topographic map). Prior 

£o Aug. 28, 1943, at site 400 ft upstream at different datum. Aug. 28, 1943, to Jan. 

27, 1945, at site 25 ft upstream at different datum.

Average discharge. 21 years (1930-51), 19.6 cfs; median of yearly mean discharges, 7.2 cfs.

Extremes.--Maximum discharge during year, 414 cfs (gage height, 3.54 ft), from rating curve 

extended above 70 cfs by logarithmic plotting; no flow during several months.

1929-51: 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 during parts of several years.

Remarks.--Records good. Discharge measurements generally made twice a month. No diversion above station.

Discharge, in cubic feet per second, water year October 1950 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.

0

5

0

0

0

0

o

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

0

0

0

.6

3.0

27T

1.6

1.4

8.7

0.28

17

Nov.

1.0

.8

.6

.573-

.5

.5

.5

.5

.5

.5

.5

.9

1.2

1.1

1.0

1.0

3.0

206

16T

56

19

14

11

10

8.8

8.5

7.7

7.4

7.1

-

531.6

17.7

1,050

Dec.

6.5

5.9

6.1

8.4

12

7.7

6.2

5.4

4.8

4.0

3.8

3.4

3.2

3.2

3.2

2.4

2.3

2.4

2.4

2.4

2.4

2.4

2.4

2.3

2.3

2.4

2.4

2.4

2.3

2.3

2.3

119.6

3.86

237

Jan.

2.3

273

2.3

2.4

2.4

2.3

2.3

2.3

2.3

4.8

6.1

12

10

9.2

8.8

8.8

8.5

8.8

78

4*5

24

19

17

14

13

12

12

10

11

10

9.2

367.1

11.8

728

Feb.

8.1

774

7.1

6.8

6.5

5.9

5.6

5.6

5.4

5.4

5.4

5.4

4.3

3.8

3.4

3.4

3.0

2.8 278"

2.8

2.8

2.8

3.0

2.8

2.8

3.9

5.4

5.7

_

-

130.1

4.65

258

Mar.

9.2

9T2

8.8

8.5

8.5

8.1

8.1

7.7

7.4

6.8

6.2

5.6

5.6

5.6

5.6

5.1

5.1

4.8

4.8

4.3

4.0

3.8

3.8

3.6

3.4

3.2

3.2

3.2

3.2

3.0

370

172.4

5.56

342

Apr.

3.0

3.0

3.0

3.0

2.8

2.8

2.6

2.4

2.4

2.3

1.8

270

2.4

2.4

2.3

2.3

2.1

2.1

2.1

2.3

2.3

2.3

2.3

2.4

3.0

2.8

2.6

2.8

3.4

276

75.6

2.. 5 2

150

May

2.6

2.4

2.4

.2.4

2.1

2.0

2.0

2.1

2.1

2.1

2.0

2.1

2.0

2.0

1.8

1.7

1.7

1.7

1.7

1.7

1.8

1.8

1.7

1.6

1.4

1.3

1.2

T73

1.3

1.3

1.3

56.6

1.82

112

June

1.1

T75

1.0

1.0

1.0

1.0

.8

.8

.8

.8

.7

.7

.7

.8

.8

.8

.8

.8

.8

.9

1.0

.9

.8

.7

.7

.7

.6

.5

75

.5

24.0

0.80

48

July

0.5

.5'.5

.5

.5

.4

.4

.4

.3

.3

.3

.3

.3

.3

.2

.2

.1

0

0

0

0

o

0

0

0

0

0

0

0

0

0

6.0

0.19

12

Aug.

O

0

0

Sept.

0

0

0

Calendar year 1950: Max 381 Mln 0 Mean 5.26 Ao-ft 3,810

Water year 1950-51: Max 206 Min 0 Mean 4.09 Ac-ft 2,960

Peak discharge (base, 10 ofs).--Nov. 19 (3 p.m.) 414 cfs (3.54 ft); Dec. 5 (1 

ftj; Jan. 12 (12 m.; 14 cfs (1.61 ft); Jan. 19 (9 a.m.) 137 cfs (2.63 ft).

urn.) 12 cfs (1.61
SANTA MARIA RIVER BASIN 159

Sisquoc River near Sisquoc, Calif.

Location.--Lat 34°SO'2S", long. 120°10'00", in sec. 20, T. 9 N., R. 31 W., on left bank 

Si.2 miles upstream from La Brea Creek and 7 miles east of Sisquoc. Prior to Aug. 24, 

1951, at site 0.2 mile downstream.

Drainage area.--290 sq mi.

Records available.--October 1943 to September 1951. December 1929 to September 1933 at 

site 0.8 mile downstream; 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 temporary gage at site 200 ft downstream from present site at different daturas was generally used for periods of low flow).

Average discharge.--8 years (1943-51), 17.6 cfs.

Extremes.--Maximum discharge during year, 4.5 cfs; minimum daily, 0.8 cfs on days in several months.

1930-33, 1943-51: Maximum discharge, 6,250 cfs Feb. 8, 1932 (gage height, 6.17 ft, 

site and datum then in use); minimum not determined (minima published for 1930-33 period 

did not include diversions); minimum daily since 1943, 0.4 cfs Sept. 14, 19, 21, 1947.

Maximum discharge known, 11,000 cfs Mar. 2, 1938 (gage height, 8.1 ft, from highwater mark in gage well at site then in use), from rating curve extended above 2,800 

cfs by logarithmic plotting.

Remarks.--Records good. Discharge measurements generally made about twice a month. No 

diversion above station.

Revisions.--W 1011: Drainage area.

Discharge, In cubic feet per second, water year October 1950 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.

1.2

1.2

.9

.9

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

1.0

.0

.2

.2

.2

.0

.2

.2

.2

.2

.2

.2

.6

.3

.3

1.2

1.2

34.2

1.10

68

Nov.

1.0

.8

79

.8

1.0

1.0

1.2

1.2

1.2

1.2

1.3

1.2

1.4

2.0

1.6

1.8

1.4

3.2

372

3.2

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.9

-

56.9

1.90

113

Dec.

2.6

2.4

2.2

2.2

2.0

2.0

2.2

2.6

2.9

2.9

2.9

2.9

2.9

3.2 2-79"

2.4

2.2

2.0

1.8

1.8

2.0

2.2 '2.4

2.4

2.6

2.4

2.4

2.6

2.6

2.4

2.2

75.2

2.43

149

Jan.

2.0

1.8

1.8

1.8

1.8

1.6 ITS'

2.2

2.6

5.2

2.9

2.4

2.2

2.0

2.0

2.2

2.0

2.2

2.6

2.4

2.4

2.4

2.4

2.4

2.4

2.2

2.2

2.2

2.6

2.2

2.0

68.9

2.22

137

Feb.

1.8

1.8

1.6

T76

1.6

1.8

1.8

1.6

1.6

1.6

1.6

1.8

1.8

1.8

1.8

1.8

1.8

2.0

1.8

1.8

1.8

1.8

2.0

2.0

1.8

2.2

2.6

276

.

-

51.6

1.84

102

Mar.

3.8

279

2.6

2.6

2.6

2.6

2.4

2.4

2.4

2.4

2.4

2.4

2.2

2.2

2.0

2.2

2.2

2.2

2.0

2.2

2.2

2.4

2.2

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

71.5

2.31

142

Apr.

2.0

1.8

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.6

272

2.0

1.8

2.5

2.4

2.2

58.1

1.94

115

Calendar year 1950: Max 525 Mln 0.8 Mean 9.68

May

2.0

570

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.6

1.6

1.6

1.4

T74

1.4

1.4

1.6

56.2

1.81

111

June

l.fa

T76

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.

1.2

T72

-

42.6

1.42

84

July

1.2

1.2

1.3

T75

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.0

1.0

.9

79

.9

.9

.9

.9

1.0

1.0

1.0

.9

'.9.9

.9

1.0

33.2

1.07

66

Aug.

0.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

76" .8

.8

.8

.8

.8

.8

.8

.B

.B

.a

.8

.B

.8

.B

.B

1.1

ITT

26.7

0.86

53

Sept.

~

0.9

.8

.8

.9

.8

.8

.8

.8

.8

.8

.8

.9

.9

.9

.8

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

-

25.0

0.83

50

Ac-ft 7,010

Hater year 1950-51: Max 3.8 Mln 0.8 Mean 1.64 Ac-ft 1,190

Peak discharge (base, 50 cfs). No peak above base.
SANTA MARIA RIVER BASIN

La Brea Creek near Sisquoc, Calif.

Location.--Lat 34°51'00", long. 120°12'00", 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 550 ft (from topographic map).

Average discharge.--8 years, 1.74 cfs.

Extremes. No flow during year.

1543-51: Maximum discharge, 1,600 cfs Feb. 22, 1944 (gage height, 5.22 ft), from 

rating curve extended above 120 cfs by logarithmic plotting; no flow during most of 

each year.

Remarks.--Mo flow since Apr. 28, 1950. Figures for calendar year 1950 are given below. 

Perennial low flow from basin above sinks beneath stream bed before reaching station. 

No diversion above station. Figures for the calendar year 1950 are as follows: maximum daily discharge, 10 cfs; minimum, zero; mean, 0.15 cfs; runoff, 107 acre-ft.
SANTA MARIA RIVER BASIN 161

Tepusquet Creek near Sisquoc, Calif.

Location. Lat 34°52'Q5", long. 120°14'40", In NE^ sec. 9, T. 9 N., R. 32 W. , on downstream wlngwall of right bank bridge abutment 1.1 miles upstream from mouth and 3 miles

east of Sisquoc. 

Drainage area. 28.9 sq ml.

 tecoras available. --October 1943 to September 1951. 

iage.--water-stage recorder. Altitude of gage Is 500 ft (from topographic map). Prior to

Dec. 9, 1948, at same site at datum 0.9 ft higher. 

Average discharge. 8 years, 0.66 cfs. 

Extremes. Maximum discharge during year, 1.5 cfs Feb. 28; maximum gage height, 1.97 ft

July 27; minimum dally discharge, 0.1 cfs on many days.

1943-51: Maximum discharge, 200 cfs Feb. 21, 1944 (gage height, 3.86 ft), from

rating curve extended above 22 cfs by logarithmic plotting; no flow Sept. 8, 1949. 

Remarks.--Records good. Discharge measurements generally made twice a month. Ho diversion above station.

Rating table, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used June 8 to Sept. 30)

1.6 0

1.7 .2

1.8 .4

1.9 1.0

Discharge, in cubic feet per second, water year October 1950 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

Ao-ft

Oct.

0.1

71

.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

.T

.1

.1

.1

3.2

0.10

6.3

Nov.

0.1

7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.4

.6

.*

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

-

5.7

0.19

11

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

Jan.

0.2T2"

.2

.3

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.1

.4

11.3

0.36

22

Feb.

0.4

75

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5~ .5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

-

-

11.5

0.41

23

Mar.

0.86"

.-S

.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

18.8

0.61

37

Apr.

 ^0.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.7

.8

.8

.8

.7

.7

.9

.7

.7

-

19.9

0.66

39

May

0.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.8

.%

.7

.7

.7

.7

.7

.6

. B" .5

.5

.6

.6

21.1

0.68

42

June

0.6 ~7S

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

-

15.5

0.52

31

July

0.4

. 4

.4

.4

.4

.4

.3

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

 2.

.2

.3

10.1

0.33

20

Aug.

0.3

. 3

.3

.3

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

,2

.2

.2

.2

6.6

0.21

13

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

.2

-

6.0

0.20

12

Calendar year 1950 : Max 1.0 Mln 0.1 Mean 0.34 Ac-ft 247

Water year 1S50-51 : Max 0.9 Mln 0.1 Mean 0.37 Ao-ft 268

Peak discharge (base, 10 efs).-- No peak above base.

Sisquoc River near Garey, Calif.

Location.--Lat 34°51 1 40", long. 120°15'45", in NE^ sec. 17, T. 9 N., R. 32 W., on right 

Dame 0.5 mile downstream from Tepusquet Creek and 3.5 miles southeast of Garey.

Drainage area.--442 sq mi.

Hecoras available.--February 1941 to September 1951.

uage. water-stage recorder. Altitude of gage is 450 ft (from topographic map).

Average discharge.--10 years, 20.5 cfs; median of yearly mean discharges, 8.6 cfs.

extremes .--no now during year.

 1^41-51: Maximum discharge, 13,000 cfs Jan. 23, 1943 (gage height, 8.46 ft), from 

rating curve extended above 2,000 cfs on basis of records at upstream stations; no 

flow during several months of each year.

Remarks. No flow since Apr. 15, 1950. Observations of no flow generally made twice a 

month. Some diversion above station for irrigation. Figures for calendar year 1950 

are as follows: total cfs-days, 602.50; maximum daily discharge, 250 cfs; minimum 

daily, zero; mean, 1.65 cfs; runoff, 1,200 acre-ft.

Revisions (water years).--W 1011: 1941, 1943.
162 SANTA MARIA RIVER BASIN

Santa Maria River at Guadalupe, Calif.

Location. Lat 34°58'25", long. 120°34'15", in Guadalupe Grant, on downstream side of middle 

pier of bridge on State Highway 1, 0.5 mile north of Guadalupe, Santa Barbara County.

Drainage area.--1,763 sq mi.

Records available.--January 1941 to September 1951.

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). Alternate water-stage 

recorder near left bank at same datum. Prior to Oct. 5, 1945, alternate gage only at 

same datum.

Average discharge.--10 years, 14.0 cfs; median of yearly mean discharges, 3.5 cfs.

Extremes.--No flow during year.

1941-51: Maximum discharge, 14,700 cfs Mar. 5, 1941 (gage height, 8.00 ft); no flow 

during several months of each year.

Remarks.--No flow since Feb. 8, 1950. Observations of no flow generally made twice a month. 

Several small surface diversions and extensive pumpage from wells along stream above 

station for irrigation. Figures for the calendar year 1950 are as follows: total 

cfs-days, 1,242; maximum daily discharge, 1,150 cfs; minimum daily, zero; runoff, 2,460 

acre-ft.
ARROYO GRANDE BASIN 163 

Arroyo Grande at Arroyo Grande, Calif.

Location.--Lat 35°07'25", long. 120 0 34'20", in Pismo Grant, on left bank at Arroyo Grande,

 San Luis Obispo County, 0.25 mile upstream from Pacific Coast Railway bridge.

Drainage area. 106 sq mi.

Records available. December 1939 to September 1951.

Gage. Water-stage recorder and broad-crested weir. Datum of gage is 97.77 ft above mean

 sea level, datum of 1929, supplementary adjustment of 1934. Prior to July 10, 1947, 

at datum 0.50 ft higher.

Average discharge.--11 years (1940-51), 22.9 ofs; median of yearly mean discharges, 11

Extremes.--Maximum discharge during year, 67 cfs June 8 (gage height, 2.00 ft); minimum

 daily, 0.2 cfs Aug. 14.

1939-51: Maximum discharge, 3,100 cfs Mar. 4, 1941 (gage height, 8.80 ft, datum 

then in use); minimum daily, less than 0.1 cfs during several periods in August and 

September 1949.

Remarks. Records good except those for periods of no gage-height record, which are fair.

 Discharge measurements generally made twice a month. Many small and intermittent diversions by pumping from stream for irrigation above station.

Revisions (water years). W 931: 1940. W1011: 1941, 1942(M).

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.1

.7

1.6

0.5

.7

1.0

2.9 

6.8

15

Discharge, In cubic feet per second, water year October 1950 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

"' san

.1C- ft

Oct.

1.8

1.4

1.3

1.0

iS.

.5

.5

.8

.9

.8

.8

.9

.9

.5

.7

.9

1.2

1.1

1.2

1.0

1.9

1.7

1.8

1.6

1.3

1.6

5.4

T75

4.5

4.5

4.5

52.0

1.68

103

Nov.

4.3

4.1

4.5

3.5

3.5

3.5

4.1

3.0

2.6 373

4.1

3.9

4.3

4.3

4.1

4.3

4.5

6.2

7.9

9.6

7.5

6.4

5.5

5.3

4.9

4.9

4.9

4.9

4.7

4.7

143.9

4.80

285

Dec.

5.1

4.7

STF

6.8

5.7

5.3

5.7

5.9

5.5

4.9

5.8

6.4

6.1

5.9

5.7

5.5

4.9

5.3

6.1

5.9

5.9

5.9

5.5

5.7

6.6

7.7

8.4

8.9

8T5

7.3

6.8

189.4

6.11

376

Jan.

7.7

8.0

8.2

8.7

8.2

7.5

6.8

775

8.2

9.9

9.9

9.6

9.4

9.4

9.4

9.4

9.4

9.9

9.6

9.4

9.4

9.6

9.4

9.6

9.9

10

9.9

10

11

TT

11

286.9

9.25

569

Feb.

11

12

11

11

12

11

11

10

11

12

12

12

12

12

12

11

9.9

9.6

10

9.9

1TJ 9.4

12

11

11

11

12

_13

_

-

311.8

11.1

618

Mar.

14

13

12

a!2

a!2

all

all

all

alO

alO

alO

a9.0

a9.0

8.4

7.5

8.4

a8.4

a8.5

a8.6

8.6

9.4

9.4

9.4

7.9

7.5

8.5

8.3

8.0

8.2

7.0

TTf

293.7

9.47

583

Apr.

7.3

8.5

8.9

9.4

9.9

9.9

9.4

9.6

9.6

9.2

8.6

8.4

8.6

7.0

8.9

8.6

7.9

8.2

10

10

8.9

 972 6.8

7.9

12

8.5

6.9

11

13

T?

-

274.1

9.14

544

May

12

T2

12

12

12

9.6

8.0

7.3

5.4

4.5

4.0

5.9

7.0

6.3

7.3

6.4

3.7

4.0

5.5

7.0

6.8

4.8

3.7

3.8

3.1

3.2

3.4

4.6

3.Y

2.8

376

195.4

6.30

388

June

3.3

4.1

6.8

574

4.9

3.1

3.4

3.9

3.4

4.6

4.4

3.0

3.2

3.2

3.8

4.0

5.1

3.6

4.8

5.5

3.9

4.4

4.1

3.9

2.8

2.6

3.0

4.3

2.6

1.8

-

116.9

3.90

232

July

2.2

1.9

1.8

2.4

£72

1.1

1.0

.6

1.2

1.1

.6

.9

.8

1.0

1.5

1.7

1.1

.9

.4

75

.5

1.1

1.1

1.0

.4

.9

.9

.6

1.0

.9

.8

34.1

1.10

68

Aug.

0.7

1.5

1.1

.7

.8

.8

.6

.8

1.2

.9

.9

.7

.4

.2

.4

.8

.9

.7

.9

1.0

1.6

al.6

al.6

al.6

al.5

al.5

al.5

1.5

.8

.8

.9

30.9

1.00

61

Sept.

0.8

.7

.8

.4

.4

.4

.6

.7

1.4

1.7

1.6

1.0

.5

.4

.4

.9

1.0

1.1

1.2

1.6

.7

1.1

1.5

1.6

1.8

1.5

1.2

1.2

1.2

1.0

-

30.4

1.01

60

Calendar year 1950; Max 306 Mln 0.2 Mean 7.38 Ac-ft 5,340

' later year' 1950-51: Max 14 Mln 0.2 Mean 5.37 Ac-ft 3,890

Peak discharge (base. 40 cfs).--Nov. 20 (3:30 p.m.) 61 cfs (1.91 ft); May 11 (11 p.m.) 64 cfs (1.90 

°t); June 8 (4:30 a.m.) 67 cfs (2.00 ft).

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

Sisquoc River near Slsquoc.
164 ARROYO DE LA CRUZ BASIN

Arroyo de la Cruz near San Simeon Calif.

Location. Lat 35°43'25", long. 121 a17'00", 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. November 1950 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 22 ft (from topographic map).

Extremes.--Maximum discharge during period, 2,340 cfs Dec. 3 (gage height, 7.48 ft); no 

flow for several months.

Remarks. Records fair.

Rating tables, Nov. 25, 1950, to Sept. 30, 1951 (gage height, In feet.

and discharge, In cubic feet per second) 

(Backwater correction applied May 3 to June 16)

Nov. 25 to Jan. 11 Jan. 11 to Sept. 30

2.2 

2.4 

2.6 

2.8 

3.0

3.3 

3.6 

4.0 

4.5 

5.0

136

205

315

485

680

2.2

2.3

Note. Same as followIng table above 5.0 ft.

0

.2

1.5

5.0

10

17

2.8 

3.0 

3.2 

3.5 

4.0 

4.5

34

54

82

145

288

460

5.0 

6.0 

7.0

7.5

680

1,230

1,960

2,360

Discharge, in cubic feet per second, November 195O to September 1951

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

26

29

30

31

Total

Mean

Ac- ft

Oct. Nov.

_

_

_

_

-

_

_

-

-

-

_

»

-

_

-

_

_

_

_

-

_

_

_

*_

28

22

19

16

15

15

_

-

-

Dec.

14

12

455

751

T5o

118

208

580

204

130

94

72

61

267

154

95

72

59

50

*43

37

34

30

28

27

112

49

*35

29

27

25

4,076

131

8,080

Jan.

23

21

20

20

19

18

18

17

16

31

338

148

64

48

*43

47

51

548

m

127

86

72

58

50

44

41

37

36

40

36

32

2,385

76.9

4,730

Feb.

29

26

26

24

26

*24

21

20

20

20

20

*21

19

19

18

16

16

15

14

13

13

13

19

21

17

21

57

SB

_

_

-

624

22.3

1,240

Mar.

89

48

35

29

*151

99

60

46

40

35

31

28

26

*24

23

21

20

19

18

17

16

16

16

15

14

13

*13

11

11

10

9.5

1,003.5

32.4

1,990

Apr.

9.0

8.5

8.5

8.0

8.0

8.0

7.5

7.5

7.0

7.0

*6.5

6.5

6.0

6.0

6.0

6.0

6.0

6.0

6.0

6.0

5.5

5.0

5.0

5.0

*5.0

5.0

2T~ 4.5

30

T2

-

244.0

8.13

484

May

7.5

6.5

26

 56 70

16

12

9.5

8.0

7.0

6.0

5.0

4.5

4.5

4.1

4.1

3.7

3.7

3.3

3.3

3.3

3.3

3.3

3.3

2.9

2.6

2.6

2.3

2.3

"2T5 2.0

260.6

8.41

517

June

1.5

T73

1.1

.9

.7

*.7

.6

.6

.5

.3

.2

.2

.2

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

9.1

0.30

18

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year : Max Mln Mean Ac -ft

Water year : Max Mln Mean Ac-ft

Peak discharge (base. 1.000 cfs). Dec. 3 (11:30 p.m.) 2,340 cfs (7.48 ft)j Dec. 8 (2:30 a.m.) 

1,100 cfs (5.79 ft); Jan. 11 (2 p.m.) 1,570 cfs (6.50 ft); Jan. 18 (7 a.m.) 1,430 cfs (6.30 ft). 

* Discharge measurement made on this day.
SALINAS RIVER BASIN 165

Salinas River near Pozo, Calif.

Location. Lat 35°18', long. 120°24', in 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,350 ft (from topographic map).

Average discharge. 9 years, 11.1 cfs.

Extremes. Maximum discharge during year, 196 cfs Jan. 19 (gage height, 5.71 ft); minimum 

daily, 0.1 cfs July 16 to Sept. 30.

1942-51: 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; minimum, less than 0.1 cfs at various times August and September 1948.

Remarks. Records fair. No storage or diversion above station. Water is stored in Salinas 

Reservoir below station.

Discharge, In cubic feet per second, water year October 1950 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.

0.4

is

.5

.5

.4

.4

.4

.4

.4

.4

*.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.6

*.6

4.8

T75

1.7

1.1

i!o

25.3 

0.82 

50

Nov.

0.6

.6

.6

.6

.6

.6

.6

.5

.5

 1

.6

.6

.7

.7

.7

.6

.6

.8

no

6.3

1.5

1.1

1.0

.8

.7

.7 

.8

.8

.8

1.1

-

36.5 

1.22 

72

Dec.

1.0

lU

1.4

1.2

1.2

1.4

1.4

1.4

al.4

*1.4

1.5

1.7

1.9

1.9

1.9

2.1

2.1

2.1

2.1

2.1

1.9

1.9

1.9

1.7

1.9 

1.9

1.9

1.7

1.7

1.9

52.0 

1.68

103

Jan.

1.

1.

1.

1.

1.

1.4

T7J

1.4

1.4

*2.7

4.0

2.7

1.9

1.9

1.7

*2.1

2.1

44

*92

75

9.8

6.1

4.9

4.2

3.7

3.5 

3.2

3.0

3.5

3.0

3.O

239.1 

7.71 

474

Feb.

2.7

*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

2.3

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

-

_

-

63.6 

2.27 

126

Mar.

3.0

*3.0

3.5

3.5

5.7

3.7

3.5

3.5

3.0

2.9

2.7

2.3

1.9

T75

1.9

1.9

1.9

1.9

*1.9

1.9

1.9

1.9

1.9

1.9

1.9

*2.0 

2.1

2.3

2.3

2.3

2.3

76.3 

2.46 

151

Apr.

2.3

2.3

2.5

2.1

2.1

2.1

2.1

2.1

2.1

*2.2

2.1

2.1

1.9

1.9

1.9

1.9

1.9

1.7

T7T

1.7

1.7

1.7

1.7

 1.7

2.1

1.9 

1.9

2.5

175

2.3

60.5 

2.02 

120

May

2.1

2.1

2.1

2.1

2.1

1.9

 1.7

1.7

1.7

1.9

1.9

2.3

773

2.3

2.1

2.1

1.9

1.7

1.5

1.4

1.4

1.2

1.4

1.4

1.2

1.1 

1.5

1.4

*1.1

1.0

T75

52.6 

1.7O 

104

June

O.6

l.O

1.0

l.O

1.0

1.0

1.0

l.O

l.O

1.0

.8

.6

l.O

1.7

.6

.6

.6

.6

.7

.6

.4

.T

1.0

*.8

1.0 

1.1

1.1

1.0

1.1

26.3 

0.88 

52

July

1.0

*.8

.8

.8

.6

.3

.2

.2

*.2

.2

.2

.2

.2

.2

.2

.1

.T

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

.1

.1

.1

.1

7.7 

O.25 

15

Aug.

 eO.l

3.1 

0.1 

6.1

Sept.

eO.l

-

3.O 

O.I 

6.0

Calendar year 1950: Max 812 Mln 0.3 Mean 6.31 Ac-ft 4,570

Water year 195O-51: Max 92 Mln 0.1 Mean 1.77 Ac-ft 1,280

Peak discharge (base. 10O efs). Jan. 19 (1 a.m.) 196 cfs (5.71 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge Interpolated.

e Stage-discharge relation Indefinites discharge estimated.

256498 O - 53 - 12
166 SALINAS RIVER BASIN

Toro Creek near Pozo, Calif.

Location. Lat 35°20', long. 120°25', in sec. 12, T. 30 S., R. 14 E., attached to,bridge 

abutment on right bank immediately upstream from mouth and 3 miles northwest of Pozo.

Drainage area.--9.5 sq mi, approximately.

Records available.--June 1942 to September 1951 (low-water records only).

Gage.--Water-stage recorder and 90° V-notch weir. Altitude of gage is 1,310 ft (from 

topographic map).

Extremes.--June to September 1951: Minimum discharge, 0.02 cfs July 22-27, Sept. 8-10,

1942-51: Minimum discharge, 0.02 cfs Sept. 10, 11, 1948, Aug. 21, Sept. 27, 1950, 

July 22-27, Sept. 8-10, 12-26, 1951.

Remarks.--Records good. Flow partly regulated at swimming pool above station.

Rating table, June 1 to Sept. 3O, 1951 (gage height, In feet, 

and discharge, In cubic feet per second)

0.10 

.13 

.16 

.18

0.01 

.02 

.03 

.04

0.20 

.22 

.24 

.26

0.05 

.06 

.07 

.09

Discharge, In cubic feet per second, June 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. Mar. Apr. May June

*0.04

.(54"

.04

.05 . 55

.05

.05

.05

.05

.05

.05

.05

.05

.05

*.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.05

.04

.04

.04

.04

-

1.43

0.048

2.84

July

0.04

.m

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04,

.04,

.04

.03

.03

.03

.03

.03

.03

.02

M

.02

.02

.02

.02

.03

.03

.03

.03

1.02

0.033

2.02

Aug.

0.03

.TSS

.03

.03

.03

.03

.03

.03

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.04

.03

.03

.03

.03

.03

.03

.05

.09

.(54"

.04

.04

1.16

0.037

2.30

Sept.

0.03

.03

.03

.03

.03

.03

.03

.02

.T52

.02

.03

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.02

.03

.04

.04

.04

-

0.75

0.025

1.49

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.
SALINAS RIVER BASIN 167

Sallnas Reservoir near Pozo, Calif.

Location. Lat 35°20', long. 120°30', in sec. 5, T. 30 S., R. 14 E., on top of dam at left

 end on Sallnas River, 2 miles upstream from Pilitas Creek and 7.5 miles northwest of

Pozo.

Drainage area. 111 sq mi.

Kecoras available. December 1941 to September 1951. 

uage. water-stage recorder. Datum of gage is at mean sea level (levels by Corps of Engineers). Prior to Mar. 9, 1942, staff gage at same site and datum. 

Extremes.--Maximum contents during year, 9,570 acre-ft Mar. 6-14; maximum elevation,

 l,aVU.30 ft Mar. 7-14; minimum contents, 6,860 acre-ft Sept. 30.

1941-51: Maximum contents, 24,120 acre-ft Mar. 19, 1945 (elevation, 1,298.45 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 pipe line 

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. Records show usuable contents at 12 p.m. The county of San Luis Obispo has 

furnished the following record of diversions for 1950-51:

Month

March. ..............

Diversion in 

acre-feet

204

Month

September. ...........

Water year 195O-51.

Diversion In 

acre-feet

224

315

291

267

2,828

Contents at 12 p.m., In acre-feet, water year October 1950 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

Oct.

9,260

9,240

9,220

9,200

9,180

9,170

9,150

9,130

9,110

9,090

9,070

9,050

9,030

9,010

8,990

8,970

8,950

8,930

8,910

8,390

8,880

8,860

8,850

8,830

8,820

8,910

8,910

8,900

8,890

8,890

8,870

Nov.

8,870

8,860

8,860

8,850

8,830

8,820

8,810

8,800

8,790

8,780

8,770

8,750

8,760

8,750

8,740

8,730

8,730

8,790

8,880

8,910

8,910

8,910

8,910

8,910

8,900

8,900

8,890

8,890

8,880

8,880

-

Dec.

8,880

8,870

8,900

8,910

8,910

8,920

8,920

8,930

8,930

8,920

8,920

8,920

8,920

8,920

8,920

8,920

8,920

8,920

8,920

8,910

8,910

8,900

8,900

8,900

8,890

8,890

8,890

8,880

8,870

8,870

8,870

Jan.

8,860

8,860

8,850

8,860

8,860

8,850

8,850

8,840

8,830

8,850

8,900

8,910

8,910

8,910

8,920

8,920

8,930

9,080

9,310

9,380

9,410

9,430

9,440

9,450

9,450

9,450

9,450

9,450

9,470

9,470

9,470

Feb.

9,470

9,470

9,470

9,470

9,470

9,470

9,470

9,470

9,470

9,470

9,480

9,480

9,470

9,470

9,460

9,460

9,460

9,450

9,450

9,450

9,440

9,440

9,450

9,450

9,440

9,460

9,470

9,500

_

-

Mar.

9,530

9,540

9,550

9,550

9,560

9,570

9,570

9,570

9,570

9,570

9,570

9,570

9,570

9,570

9,560

9,560

9,560

9,550

9,540

9,530

9,520

9,510

9,510

9,510

9,510

9,500

9,490

9,490

9,480

9,470

9,460

Apr.

9,450

9,440

9,430

9,430

9,430

9,420

9,410

9,410

9,400

9,390

9,390

9,380

9,360

9,350

9,340

9,330

9,330

9,320

9,320

9,310

9,300

9,300

9,290

9,280

9,280

9,280

9,270

9,310

9,320

9,310

May

9,310

9,300

9,300

9,300

9,290

9,280

9,270

9,260

9,250

9,230

9,220

9,210

9,190

9,180

9,170

9,150

9,140

9,120

9,110

9,100

9,080

9,070

9,060

9,040

9,030

9,010

8,990

8,980

8,950

8,930

8,910

June

8,890

8,870

8,860

8,830

8,810

8,800

8,790

8,770

8,750

8,740

8,720

8,700

8,690

8,670

8,650

8,630

8,620

8,600

8,590

8,570

8,560

8,540

8,520

8,510

8,490

8,480

8,460

8,440

8,430

8,410

-

July

8,390

8,370

8,350

8,340

8,320

8,300

8,280

8,260

8,250

8,230

8,210

8,200

8,180

8,170

8,120

8,110

8,090

8,080

8,060

8,040

8,020

8,000

,980

,960

,940

,930

,910

,890

,870

,850

,840

Aug.

,820

,800

,780

,760

,740

,720

,700

,680

,670

,650

,640

,620

,600

,590

,570

,550

,530

,520

,500

,480

,460

,440

,420

,410

,400

,390

,370

,350

,330

,320

,310

Sept.

7,290

7,280

7,260

7,240

7,230

7,210

7,200

7,180

7,170

7,140

7,130

7,110

7,090

7,080

7,070

7,050

7,030

7,020

7,000

6,990

6,970

6,960

6,940

6,930

6,910

6,900

6,890

6,880

6,870

6,860

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31. ....................

Calendar year 195O. .......

July 31 .....................

Sept .30. ....................

Water year 1950-51 ........

Elevation 

(feet)t

1,270.54

-

,264.85

-

Contents 

(acre-feet)

8,870

_

6,860

-

Change in contents 

during month 

(acre-feet)

-10

+2,950

-450

-2,420

t Elevation at 12 p.m.
168 SALINAS RIVER BASIN

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

Location.--Lat 35°21', long. 120°31', in NE^ sec. 6, T. 30 S., R. 14 E., on right bank 200 

ft upstream from Pilitas Creek and 6 miles southeast of Santa Margarita.

Drainage area. 112 sq mi (revised).

Records available. July 1942 to September 1951.

gage. Water-stage recorder and concrete control. Altitude of gage is 1,150 ft.

Average discharge. 9 years, 12.8 cfs.

Extremes. Maximum discharge during year, 80 cfs July 15 (gage height, 1.42 ft); no flow 

ror several months.

1942-51: Maximum discharge, 562 cfs Jan. 28, 1943 (gage height, 2.49 ft); nc flow at 

times during 1944, 1947-51.

Remarks. Records good. Flow regulated by Salinas Reservoir beginning in 1941 (see p.167). 

Small amount of water diverted to Camp San Luis Obispo and City of San Luis Obispo.

Discharge, in cubic feet per second, water year October 1950 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.

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.6

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

2.0

1.4

 1.4

 STI 2.8

.4

.2

.J.

.2

47.2

1.52

94

Nov.

0.2

.1

.1

.1

.1

.1

.1

.1

.1

2

0

0

0

0

.1

.1

.1

.6

~75 2.0

.5

.2

.2

.2

.1

.1

.1

.1

.1

.1

-

6.4

0.21

13

Dec.

0.1

.T

.2

.6

.3

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

5.1

0.16

10

Jan.

0

ff

0

0

.1

.1

.1

0

.1

*.3

.3

.3

.1

.1

.1

.2

.1

.6

."J .9

.2

.2

.2

.2

.1

.1

.1

.1

.2

.2

.2

5.5

0.18

11

Feb.

eO.l

/** \

_

_

-

2.8

0.1

5.6

Mar.

eO.l

(**)

(**)

3.1

0.1

6.1

Apr.

(**)

eo.01

(*)

-

0.3

0.01

0.6

May

0

0

0

June

0

0

0

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.8

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.9

0.13

7.7

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 46 Min 0 Mean 0.73 Ac-ft 530

Water year 1950-51: Max 3.8 Min 0 Mean 0.20 Ac-ft 148

* Discharge measurement made on this day

** Field estimate made on this day.

e Stage-discharge relation indefinites discharge estimated on basis of field estimates.
SALINAS RIVER BASIH 169

Jack Creek near Templeton, Calif.

Location. Lat 35°34', long. 120°48', in Paso de Robles Grant, on left bank 1.4 jrdles 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 1951.

Gage. Water-stage recorder. Altitude of gage is 980 ft (from topographic map).

Extremes. Maximum discharge during year, 911 cfs Nov. 19 (gage height, 5.51 ft); no flow 

ror several months.

1949-51: Maximum discharge, 1,500 cfs Feb. 6, 1950 (gage height, 6.30 ft), from 

rating curve extended above 500 cfs by logarighmic plotting; no flow for several months 

each year.

Remarks. Records good. Ho regulation. Small diversions above station for irrigation.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.34

1.4

1.5

1.7

1.8

.1 

.4

1.3 

2.1

1.9

2.0

2.1 

2.3 

2.5

3.2 

4.8 

7.0

2.8 

3.2 

3.6 

3.8 

4.4

172

220

396

Discharge, in cubic feet per second, water year Odtober 1950 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.

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

81

*376 T35"

40

17

9.6

6.0

4.4

3.4

2.7

2.4

2.0

2.1

-

676.6

22.6

1,340

Dec.

2.1

1.8 7ir

159

37

21

36

-BO- 172

29

20

16

14

23

19

15

13

*11

8.8

7.8

7.0

6.2

5.8

5.3

4.9

7.5

6.0

5.3

4.8

4.4

4.1

791.8

25.5

1,570

Jan.

3.6

3.4

3.2

3.2

3.2

3.1

3.0 *2.9

'BTs 2.7

66

35

18

15

13

13

12

159"§"5-

48

33

25

21

18

16

14

13

12

16

14

11

700.8

22.6

1,390

Feb.

9.6

*8.8

8.1

7.8

7.5

7.0

6.5

6.2

5.8

5.5

5.5

6.0

5.1

4.9

4.6

*4.4

3.9

3.8

3.6

3.5

3.5

3.6

13

13

7.8

13

27

77

_.

_

-

226.0

8.07

448

Mar.

39

25

20

17

25

24

19

17

IS

14

13

11

11

8.8

8.1

7.8

7.2

6.8

6.2

5.8

5.5

*5.3

4.9

4.8

4.6

4.4

4.1

3.8

3.8

3.6

3.5

350.0

11.3

694

Apr.

3.2

3.2

3.2

3.1

3.0

2.7

2.7

2.6

2.5

*2.4

2.3

2.2

2.0

1.8 T75-

1.8

1.8

1.9

2.2

2.1

2.0

1.9

1.9

*1.8

2.2

2.0

1.9

4.2

4.6 276-

-

73.7

2.46

146

May

2.2

2.0

2.5

10 ~J.9

3.5

2.9

2.6

2.3

2.2

2.0

1.8

1.8

1.7

1.6

1.5

1.4

1.4

1.3

1.3

1.3

1.2

1.2

1.1

1.0

.9

1.0

1.0

*.9

.8. 9"

62.2

2.01

123

June

~75 0.8

.8

.8

.7

.8

.7

.7

.7

.8

.6

.6

.6

.7

*.6

.6

.7

.7

.7

.8

.6

.5

.4."S

.6

*.e

.6

.5

.5

.4

-

19.3

0.64

38

July

0.5

'.4

.4

.4

.4

.3

.3

.3

.3

.4

.3

.3

.2

.2

.1

.1

".I 0

0

0

0

0

0

.1

0

0

0

0

0

0

5.5

0.18

11

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 448 Min 0 Mean 10.2 Ac -ft 7,410

Water year 1950-51: Max 376 Min 0 Mean 7.96 Ac-ft 5,760

Peak discharge (base, 500 cfs). Nov. 19 (7 a.m.) 911 cfs (5.51 ft).

* Discharge measurement made on this day.
170 SALINAS RIVER BASIN

Salinas River at Paso Robles, Calif.

Location. Lat 35°37'40", long. 120°41'05", at bridge on State Highway 41 in Paso Robles, 

3.5 miles upstream from Huerhuero Creek.

Drainage area. 389 sq mi.

Records available. October 1939 to September 1951.

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.--12 years, 106 ofs; median of yearly mean discharges, 52 cfs.

Extremes.--Maximum discharge observed during year, 1,650 cfs Dec. 3 (gage height, 8.74 ft); 

no now during several months.

1939-51: 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. 167),

Discharge, In cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

T3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

148

*291

143

54

25

15

8.6

7.4

6.6

5.0

3.5

*2.5

-

709.6

23.7

1,410

Dec.

2.5

TX

202

*407

327

*239

181

*405

329

177

146

137

118

102

129

104

97

85

65

58

58

49

44

41

46

42

44

35

32

35

41

3,780.5

122

7,500

Jan.

35

25

*26

25

23

21

20

20

19

?T

36

165

112

83

76

*76

69

246

*617

4C4

284

*210

197

168

143

*115

110

90

97

97

83

3,713

120

7,360

Feb.

67

60

61

60

61

*58

51

44

44

44

44

40

40

*40

40

36

36

36

35

32

32

31

36

52

41

*41

92

92

_

-

1,346

48.1

2,670

Mar.

174

TJO

115

104

97

118

100

85

*87

83

69

63

65

52

47

54

47

47

*42

42

41

38

36

34

31

*29

24

21

 si 20

20

1,946

62.8

3,860

Apr.

15

17

17

18

14

12

11

10

10 no

8.6

8.2

7.4

5.8

6.2

7.0

6.2

7.0

6.2

7.0

5.4

5.0

*5.8

4.2

57C

7.8

8.6

9.0

18

25

-

297.4

9.91

590

May

21

18

17

16

23

20

18

13

11

9.0

7.4

7.0

7.0

7.0

5.0

5.0

4.5

3.8

3.8

3.5

4.2

5.8

4.0

.7

0

0

0

0

0

0

0

234.7

7.57

466

June

(»)

-

0

0

0

July

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

(*)

-

0

0

0

Calendar year 1950: Max 3,260 Mln 0 Mean 49.1 Ac-ft 35,510

Water year 1950-51: Max 617 Mln 0 Mean 33.0 Ac-ft 23,860

Peak discharge (base, 1,000 cfs). Dec. 3 (about 11 p.m.) 1,650 ofs 

* Discharge measurement made on this day.

3.74 ft).
SALINAS RIVER BASIN 171

Nacimiento River near San Miguel, Calif.

Location. Lat 35°47'00", long. 120°47'24", in SEj 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 September 1951.

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. --12 years, 270 cfs; median of yearly mean discharges, 200 cfs.

Extremes. Maximum discharge during year, 15,400 cfs Nov. 19 (gage height, 7.60 ft); no 

now Oct. 1 to Nov. 16, June 23 to Sept. 30.

1939-51: Maximum discharge, 50,800 cfs Jan. 21, 1943 (gage height, 10.45 ft), from 

rating curve extended above 17,000 cfs by logarithmic plotting; no flow for several 

months in each year except possibly 1942-44.

Remarks . Records fair. No storage or large diversion.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second) 

(Backwater corrections applied June 1-22)

0.2 

.3 1.5 

4.2 

9.1

0.6 

.7 35

60

127

330

600

1,150

1,790

4.0

5.0 

6.0 

7.0

2,940

4,500

7,600

.5 9.1 1.0 12,200

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

£

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

ZO

Zl

Z2

23

Z4

25

26

Z7

Z8

29

30

31

Total

Mean

Ac- ft

Oct.

0

0

0

Nov.

0

TS

0

0

0

0

0

0

0

0

0

0

0

0

0

0

122

1,100

*8,410 

3,350

1,880

869

438

354

Z65

220

195

166

148

136

-

17,653

588

35,010

Dec.

131

123

116

*5,3T5 

1,280

725

568

*1,640

1,070

698

520

426

372

520

776

513

426

372

330 

294

Z60

Z40

220

205

190

276

276

Z15

190

166

153

16,661

537

33,050

Jan.

140

123

*116

113 

105

98

88

85

 95 79

*416

875

438

336

288

Z8Z

260

821

*1,480 

878

616

485

4ZO

372

336

*306

Z76

250

Z55

Z76

230

10,938

353

21,700

Feb.

205

185

170

161 

153

153

140

*127

120

113

105

105

109

98

95

88

85

82

82 

79

76

75

110

Z20

T70

136

*200

2ZO

_

_

-

3,666

131

7,270

Mar.

*377

402

324

270 

284

544

438

384

330

300

Z60

225

210

195

175

157

144

131

120 

113

105

*98

95

91

88

85

82

79

76

72

6j>

6,323

Z04

1Z.540

Apr.

66

66

66

63 

60

60

57

55

55

52

49

47

44

44

44

4Z

42

42

*42 

42

39

39

37

35

37

42

42

44

~55 106

1,557

51 .9

3,090

May

66

52

47

196 

210

116

79

63

55

49

42

37

35

30

30

28

Z5

23

2Z

19

19

19

17

17

16

15

14

*14

13

12

11

1,391

44.9

2,760

June

9.7

97f

8.5

8.5 

7.4

7.4

6.4

6.4

5.9

5.9

5.4

5.0

3.8

3.Z

2.9

2.1

1.7

*1.3

1.1

.7

.4

.2

0

TS

0

0

0

*0

0

0

103.6

3.45

205

July

0

0

0

Aug.

0

0

0

Sept.

(*)

-

0

0

0

Calendar year 1950: Max 9,660 Min 0 Mean 234 Ac-ft 169,400

Water year 1950-51 : Max 8,410 Min o Mean 160 Ac-ft 115,600

Peak discharge (base, 9,600 cfs). Nov 

* Discharge measurement made on this d

19 (11 a.m.) 15,400 cfs (7.60 ft).
172 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 town site 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 720 ft (from topographic map). Prior to 

 Hay 10, 1939, at datum 1.00 ft higher.

Average discharge. 21 years (1930-51), 87.0 cfs, median of yearly mean discharges, 55 cfs.

Extremes. Maximum discharge during year, 2,940 cfs Nov. 19 (gage height, 4.20 ft); no flow 

Oct. 1 to Nov. 18, July 2 to Sept. 30.

1929-51: Maximum discharge, 11,400 cfs Feb. 11, 1941 (gage height, 5.58 ft), from 

rating curve extended above 8,000 cfs; no flow for several months each year except 

possibly 1942, 1943.

Remarks. Records fair. Small diversions above station for irrigation.

Discharge, In cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

U

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

1.320 

*838

574

*337

231

185

148

126

106

91

88

*78

-

4,122

137

8,180

Dec.

68

63 "55

"JSB" 784

320

282

*288

326

276

266

211

167

190

298

231

198

180

163

144

122*

116

112

103

106

99

93

91

86

78

68

6,058

195

12,020

Jan.

61

58

58

54

50

48

46

*44

TZ

52

65

130

112

91

86

83

80

*88

221 

251

202

*171

137

116

106

86

86

88

86

86

93

2,959

95.5

5,870

Feb.

88

78

70

70

*68

65

61

63

65

58

54

54

56

*52

52

48

44

42

41 

42

41

39

TS

44

44

44

44

*44

_

-

1,517

54.2

3,010

Mar.

50

52

52

50

48

54

63

*'B3 65

63

58

58

61

56

61

56

52

50

46 

44

44

42

42

41

39

37

37

37

34

*33

a52

1,520

49.0

3,010

Apr,

a31

a'SiJ

a29

a28

a27

*a26

26

24

24

24

23

22

21

19

17

16

16

16

16 

16

15

14

H

14

16

14

14

17

18

22

-

609

20.3

1,210

May

*20

19

19

20

11

26

24

20

17

14

11

9.5

9.5

8.9

7.4

6.9

6.1

5.0

4.6 

3.9

3.0

2.4

2.0

1.6

1.3

1.1

1.0

1.0

.9

.8

*.8

294.7

9.51

585

June

0.8. 5

.8

.7

.6

.6

.6

.6

.5

.5

.5

.4

.4

.4

.4

.4

.3

*.3

.4 

.4

.4

.3

.3

.3

.3

.3

.2

.1

.T

.1

-

12.8

0.43

25

July

0.1

0

*U

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

Aug.

0

0

0

Sept,

0

0

0

Calendar year 1950: Max 1,870 Mln 0 Mean 64,6 Ac-ft 46,750

Water ater year year 1950-51: 1950-51: Max Max 1,320 1,320 Mln Mln 0 0 Mean Mean 46.8 46.8 Ao-ft Ao-ft 33,910 ii.aiu

Peak discharge (base. 470 efs). Hoy. 19 (2 p.m.) 2,940 cfs (4.20 ft); Dee. 4 (8 a.m.) 1,590 efs 

(3.25 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge Interpolated.
SALINAS RIVER BASIN 173

Salinas River near Bradley, Calif.

Location. Lat 35°55 I 40", long. 120°52'00", in NE& sec. 15, T. 23 S., R. 10 E., on left 

DanK 6 miles northwest'of town of Bradley and 7 miles downstream from San Antonio River.

Drainage area. 2,522 sq mi.

Records available. December 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 450 ft (from topographic map).

Extremes. Maximum discharge during year, 12,800 cfs Nov. 19 (gage height, 10.18 ft); no 

 flow Aug. 15-23, Sept. 16-21.

1949-51: Maximum discharge, 15,500 cfs Feb. 6, 1950 (gage height, 10.66 ft); no flow 

Aug. 15-23, Sept. 16-21, 1951.

Remarks. Records good.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4 

S

6

7

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.

2.5

775

2.8

2.5 

2.8

2.8

2.5

2.5

2.5

2.5

2.5

2.5

*2.5

2.5

2.5

3.1

3.4

3.8

3.8

4.2

4.6

4.6

5.0

5.4

5.4

7.7

12 ~6.4

5.4

*5.9

5.9

TotaJ 125.3 

Mean 4.04

Ac-ftj 249

Nov.

5.0

5.0

5.0

4.6

4T6

4.6

5.0

5.0

5.4

5.0

5.0

5.9

7.4

7.9

6.9

6.9

7.4

49

6.750

*4,83<5

3,430

1,820

1,220

926

746

622

531

462

416

378

22,256.6 

742

44,150

Dec.

333

315

*2,l50' 297

2,470

1,500

1,160

1,620

1,800

1,330

*1,040

876

754

682

1,010

892

770

698

638

580

531

496

468

436

404

404

442

384

352

345

327

26,204 

845

51,970

Jan.

297

268

263

236 

220

206

201

*192

'25T 182

241

769

722

580

510

475

456

*530

1,500

1,590

1,250

*1,020

892

794

714

638

594

552

552

552

510

17,707 

571

35,120

Feb.

456

fSS

378

345 

*315

309

309

297

291

268

258

252

230

230

236

230

225

216

216

206

196

T9T

201

258

297

297

303

*321

_

-

7,759 

277

15,390

Mar.

364

475

456

397 

378

496

580

545

510

468

416

384

358

327

297

*280

252

206

196

182

178

158

158

154

150

139

136

132

129

120

116

9,137 

295

18,120

Apr.

116

116

113

113

100

*92

92

84

80

78

80

76

76

74

76

74

74

72

7ff

76

78

76

80

82

87

87

84

89

100

*120

2,621 

87.4

5,200

May

105

100

92

102 

192

154

123

110

102

87

78

70

62

59

51

50

46

43

40

38

35

30

29

26

25

25

22

22

19

18

*17

1,972 

63.6

3,910

June

14

IS

14

15 

13

12

12

12

12

12

12

9.7

8.5

7.9

7.4

6.9

6.9

*6.9

7.9

7.9

6.9

6.9

5.9

5.4

5.0

4.6

*4.6

3.8

 575 3.4

260.3 

8.68

516

July

"STB 3.8

3.1

3.4 

3.1

2.8

2.5

2.0

1.8

1.8

2.5

2.8

2.0

2.0

1.6

1.4

1.1

.8

.6

.5

.4

T5

.7

.8

.8

*.8

.9

.8

.8

.5

.4

50.8 

1.64

101

Aug.

0.4

.6

.8

1.1 

T7I

.9

.7

.8

.9

.9

1.1

.7

.4

.2

O

0

0

0

0

0

0

0

0

.1

.2

.2

.1

.2

.6

.8

.8

13.6 

0.44

27

Sept.

0.9

1.1

1.1

*1.4 

1.4

1.4

1.4

1.1

.9

.5

.2

.3

.4

.3

.3

0

TJ

0

0

0

0

.2

.5

.7

.8

*1.2

1.6

1.8

2.0 £ 70"

23.5

0.78

47

Calendar year 1950: Max 9,770 Mln 1.1 Mean 337 Ac-ft 244,000

Water year 1950-51: Max 6,730 Mln 0 Mean 241 Ac-ft 174,800

Peak discharge (baae. 4.000 cfs). Nov. 19 (5 p.m.) 12,800 ofB (10.18 ft)j Dec. 4 (2 p.m.) 4,720 

cfs 17,88 ft).

* Discharge measurement made on this day.
174 SAUNAS RIVER BASIN

Arroyo Seco near Soledad, Calif.

Location.--Lat 36 016'50", 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 1951.

Gage. Water-stage recorder. Datum of gage is 344.20 ft above mean sea level (Corps of 

Engineers bench mark). Prior to Dec. 3, 1941, at site 1 mile upstream, different datum. 

Staff gage Nov. 6, 1901, to June 15, 1929; water-stage recorder June 16, 1929, to Dec. 

2, 1941.

Average discharge . 49 years (1902-51), 169 cfs; median of yearly mean discharges, 124 cfs.

Extremes. Maximum discharge during year, 20,600 cfs Nov. 19 (gage height, 12.46 ft); no 

flow Oct. 1-26, Aug. 12 to Sept. 30.

1901-51: Maximum discharge observed, about 22,000 cfs Feb. 21, 1917, Nov. 25, 1926 

(gage height, 16.5 ft, site and datum then in use), from rating curve extended above

7,500 cfs; no flow at times during several years. 

Remarks. Records "good. No storage or large diversion above station. 

Revisions (water years). W 881: 1902-9 (yearly summary only).

Rating tables, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 27 to Nov.

0

.2

.8

2.1

4.1

7.2

11

1.7

1.9

2.4

3.0

4.0

5.0

6.0

24

40

103

202

438

790

1,420

19

7.0

8.0

9.0

11.0

12.5

2,540

4,180

6,500

13,700

20,800

Nov. 2O to Aug. 11

1.0

1.1 

1.3 

1.5

2.2

4.0

9.9

19

1.8 

2.1 

2.5

3.0

38

66

122

202

Note. Same as preceding table above 

3.0 ft.

Discharge, In cubic feet per second, water year October 195O 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.

o~0

0

0

0

0

0

0

0

0

0

0

0

0

0

*o

0

o

0 

0

o

0

0

0

0

o

139

34

13

8.8

*31

225.8

7.28

448

Nov.

21

12

9.6

8.4

7.6

7.2

6.8

6.5

6.8

6.5

6.2

6.2

6.5

6.8

8.6

18

*390

1,850

9,060 

2,280

*1 , 120

656

438

322

253

208

182

162

144

144

-

17,353.9

578

34,420

Dec.

137

122

6TB

1,640

717

527

*483

746

621

486

402

348

3-10

488

*407

341

303

273

246 

226

208

194

182

170

165

192

160

149

140

134

130

11,325

365

22, ISO

Jan.

125

119

114

*112

108

104

100

97

94

13T

205

266

182

157

148

171

*152

342

661 

413

327

 275

242

218

200

187

175

165

166

155

146

6,057

195

12,010

Feb.

138

134

128

124

131

124

116

112

107

103

103

116

106

»100

97

93

89

89

86 

83

82

8086"

87

82

82

93

94

_

_

-

2,865

102

5,680

Mar.

107

108

100

97

172

236

216

204

187

170

154

142

134

126

*119

113

107

103

97 

94

90

87

83

82

78

76

74

71

70

69

69

3,635

117

7,210

Apr.

66

64

64

64

*63

62

59

58

53

54

53

52

50

49

48

49

48

47

47 

48

45

44

44

43

47

45

44

48

84

 59

1,604

53.5

3,180

May

50

47

47

161

108

79

66

58

54

50

47

45

46

45

43

41

40

37

36 

34

34

34

34

33

32

30

29

28

27

27

»25

1,467

47.3

2,910

June

24

23

23

22

22

22

22

21

21

21

20

18

17

16

15

14

13

13

13 

13

13

*14

13

13

12

12

12

10

9.5

8.8

490.3

16.3

972

July

8.2

7.9

7.3

7.3

7.0

6.7

6.1

5.8

5.2

5.2

5.0

»4.4

4.2

3.7

3.4

3.0

2.7

2.4

1.7 

1.5

1.5

1.1

1.0

1.0

1.2

 1.0

.9

.8

.8

.6

109.2

3.52

217

Aug.

~0.5

.3

.3

.2

.2

.2

.1

.1

.1

.1

0

0

0

0

0

0

0

o

0

0

0

0

o

0

0

o

0

o

0

0

2.5

.08

5.0

Sept.

(*)

(*)

Q

0

0

Calendar year 1950: Max 9,060 Mln 0 Mean 145 Ac-ft 1O5,20O

Water year 1950-51: Max 9,060 Mln 0 Mean 124 Ac-ft 89,510

Peak discharge (base, 1,380 cfs). Nov. 19 (3 a.m.) 20,600 cfs (12.46 ft); Dec. 3 (12 p.m.) 4,540 

cfs (8.18 ft).

* Discharge measurement made on this day.
SALINAS RIVER BASIN 175

Salinas River near Spreckels, Calif.

Location. Lat 36° 3V 50", long. 121°40'40", in El Toro Grant, on right bank 80 ft upstream 

from oridge 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 1951.

Gage. Water-stage recorder. Datum of gage is 22.64 ft above mean sea level, adjustment

 5f 1918. 1900-1901, staff gage at same site, different datum. Subsequent to Mar. 17, 

1941, wire-weight gage on highway bridge 80 ft downstream, at same datum. May 10 to 

July 29, 1940, staff gage at same site, left bank, different datum.

Average discharge. 21 years (1930-51), 516 cfs; median of yearly mean discharges, 330 cfs.

Extremes. Maximum discharge during year, 1,300 cfs Nov. 20 (gage height, 11.49 ft); mini-

 mum ODserved, 0.6 cfs Apr. 26.

1929-51: 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; no flow at times during period 1929-40.

Maximum stage known, 26.6 ft Mar. 7, 1911, as indicated at oil-pumping station 

opposite gage.

Remarks. Records good except those below 10 cfs, which are poor. Small diversions above 

station for irrigation. Low flow represents waste water from Spreckels sugar refinery.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

j

2

3

4

5

e

i

&

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

 e3.5

(»)

(»)

108.5

3.5

215

Nov.

5.7

6.0

6.0

5.7

4.7

5.7

5.5

6.0

6.3

6.4

6.6

7.0

7.8

7.8

8.0

8.4

9.4

10

58

1,000

*742

*744

660

242

65

26

*18

15

14

14

-

3,721.0

124

7,380

Dec.

13

13

14

13

12

11 *25B

350

279

318

604

T70

320

224

*159

199

143

269

201

140

96

65

43

25

16

14

13

13

12

11

11

4,357

141

8,640

Jan.

10

9.8

9.8

*9.2

8.4

8.2

8.2

8.0

7.8

8.4

8.5

8.2

7.8

7.4

7.4

7.8

*7.2

IT

*34

224

*570

*989

*5TO

*670

557

471

410

353

310

285

252

6,118.1

197

12,140

Feb.

rco" 215

179

158

149

132

*103

81

70

59

51

44

32

22

14

13

12

11

10

9.0

8.9

8.5

7.7

7.2

6.8

6.8

7.0

6.8

-

-

-

1,623.7

58.0

3,220

Mar.

6.3

6.6

6.6

6.4

24

123

118

95

165

217

190

162

144

124

*94

66

44

26

19

g9.2

gf.O

g5.4

g4.7

g4.2

g3.6

g3.7

g3.5

*g3.4

g3.1

g2.8

g2-4

1,689.9

54.5

3,350

Apr.

(..)

el

(*»)

-

30

1

60

May

el

31

1

61

June

(»»)

el

(»»)

-

30

1

60

July

(»»)

el

(**)

31

1

61

Aug.

el

(,.)

31

1

61

Sept.

(» )

e3

(»)

-

90

3

179

Calendar year 1950 : Max 3,580 Mln - Mean 61.8 Ac-ft 44,700

Water ater year year 1950-51 1950-51 : : Max Max 1,000 1,000 Mln Mln - - Mean Mean 48.9 48.9 Ac-ft Ac-ft 35,430 35,430

Peak discharge (base, 27O cfs).--Nov. 20 ( 6 to 7 a.m.) 1,300 cfs (11.49 ft); Dec. 11 (9 to 10 a.m.) 

>2 cfs (6.68 ft); Dec. 18 (6 to 7 a.m.) 289 cfs (6.42 ft); Jan. 22 (7 to 10 a.m.) 1,020 cfs (9.32 ft). 

* Discharge Discharge measurement measurement made on this day. 

-* Field estimate made on this day.

e Stage-discharge relation Indefinite; discharge comp 

5 discharge measurements.

g Computed from once-daily wire-weight gage readings.

uted on basis of several field estimates and
176 PAJARO RIVER BASIN

Pacheco Creek near Dunneville, Calif.

Location. Lat 36°58'50", long. 121 °22 '50", 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 1951.

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, staff gage at same 

site, at datum 2.00 ft higher.

Average discharge. 11 years, 33.1 cfs; median of yearly mean discharges, 25 cfs.

Extremes. Maximum discharge during year, 6,340 cfs Dec. 3 (gage height, 16.4 ft), from 

rating curve extended above 1,100 cfs on basis of 1945 high-water rating; no flow Oct. 1 

to Nov. 17.

1940-51: Maximum discharge, 7,200 cfs Feb. 2, 1945 (gage height, 17.8 ft, present 

datum, from floodmarks), from rating curve extended above 4,000 cfs on basis of slopearea determination of peak flow; no flow at times in 1940, 1943-50.

Remarks. Records fair. Detaining reservoir (capacity, about 6,000 acre-ft) several miles 

acove station stores flood water for release during low flow. Small diversions above 

station for irrigation.

Cooperation. Thirteen discharge measurements furnished by Bureau of Reclamation.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

Z

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

0

0

Nov.

0~0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

668

1,960

2,470

1,000

*336

124

86

52

39

28

*21

16

14

6,814

227

13,520

Dec.

14

12

1,215

1,330

407

*248

653

*1,990

*508

*292

183

130

*101

*155

124

94

76

*62

49

*41

*38

34

31

28

26

23

*21

19

16

14

12

7,941

256

15,750

Jan.

12

12

12

14

13

*12

11

9.6 

8.9 IT"

129

128

67

46

36

39

34

212

325

*T£7

*99

86

72

*59

50

43

38

35

35

35

30

1,860.5

60.0

3,690

Feb.

26

23

21

21

*70

79

*56

45 

39

34

36

40

40

33

*30

26

23

22

19

*18

*17

18

19

18

16

22

94

71

_

-

979

35.0

1,940

Mar.

113

101

77

67

484

398

*250

172 

*124

97

77

64

55

49

41

36

32

30

28

25

22

20

19

17

14

14

14

*12

12

11

TT

2,486

80.2

4,930

Apr.

10 -5.3

8.9

8.2

7.8

7.0

6.7

6.3 

5.8

5.2

4.4

*3.6

3.3

3.0

2.8

2.6

2.6

2.5

2.3

2.3

2.1

2.0

2.0

2.0

2.0

*1.9

T79

2.0

3.6

3,3

-

127.4

4.25

253

May

5-2 ^n?

3.2

3.6

3.5

3.3

3.3

3.9

4.7

5.2

5.8

5.8

6.0

6.7

6.3

6.3

6.3

6.7

6.7

7.0

7.4

9.6

18

Iff

14

14

14

14

16

15

14

252.7

8.15

501

June

12

10

T?

13

*10

11

13

13 

14

15

15

16

TS

15

16

16

15

15

14

*14

15

14

14

14

12

10

10

12

12

13

-

400

13.3

793

July

-5.9 11

8.5

8.5

8.5

8.5

8.5

7.8 

7.8

8.5

8.2

6.7

6.0

5.5

4.4

*3.9

*3.3

2.9

2.8

T^,

3.2

3.9

4.7

4.7

*5.0

5.2

4.7

4.7

4.7

4.7

4.1

182.6

5.89

362

Aug.

4.1

^77

7.8

8.9

8.9

8.2

6.7

5.2 

5.2

5.2

5.2

5,2

5.2

4.7

4.7

4.7

5.0

10

13

14

15

TA

12

12

12

9.6

8.5

8.5

8.5

*7.8

7.8

254.3

8.20

504

Sept.

8.2

7TS

7.8

7.4

6.3

6.3

5.8

5.2 

5.2

5.2

5.0

*5.0

5.0

4.4

4.4

"575 3.9

3.9

3.9

4.7

5.5

6.3

7.0

7.0

r.o

7.0

*7.4

7.8

7.0

7.0

-

178.3

5.94

354

Calendar year 1950: Max 2,470 Mln 0 Mean 47.4 Ac-ft 34,340

Water year 1950-51: Max 2,470 Mln o Mean 58.8 Ac-ft 42,600

* Discharge measurement made on this day.
PAJARO RIVER BASIN 177 

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 downstream 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 September 1951.

Gage. Water-stage recorder. Altitude of gage is 390 ft (from topographic map).

Average discharge. 20 years, 34.5 cfs; median of yearly mean discharges, 29.0 cfs.

Extremes.--Maximum discharge during year, 4,450 cfs Nov. 18 (gage height, 10.54 ft); min- 

 Imum daily, 0.1 cfs Oct. 1-11, Sept. 10-30.

1930-51: Maximum discharge, 8,630 cfs Dec. 11, 1937 (gage height, 13.70 ft), from 

rating curve extended above 4,600 cfs; no flow at times during 1931-34, 1943-46.

Remarks. Records good. No storage or large diversion above station.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Nov. 18 Nov. 19 to Sept. 30

2.0

2.1

2.2

2.3

1.3 

2.8 

5.2

2.5

2.6 

2.8 

3.0 

3.5

8.6

13

26

45

128

4.0 

5.0 

7.0 

9.0

244

554

1,390

2,830

2.0

2.1

2.2

2.3

2.4

0.1

.4 

1.7 

3.6 

5.8

2.5

2.6 

2.8 

3.0 

3.3

8.7

12

26

48

93

3.6 

4.0 

5.0 

6.0 

8.0

156

261

605

1,030

2,040

Discharge, In cubic feet per second, water year October 1950 to. September 1951

Day

1

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

2E

E3

24

25

26

E7

28

29

30

31

Total

Mean

Ac-ft

Oct.

aO.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

.1

.1

.1

.2

.2

.2

.2

.2

.2

.E

.2

.2

.2

.2

.3

.3

.3

4.3

13

T.4

2.1

4.4

3.6

35.0

1.13

69

Nov.

2.4

2.0

1.7

.7

.5

.4

.4

.4

.3

.2

.2

.3

.7

.8

.2

201

62

2.080

1,030

1,140

482

*238

147

104

83

67

58

52

46

44

-

5,858.2

195

11,620

Dec.

38

36

985

587

267

210

350

2.020

567

332

238

185

*151

211

151

127

112

102

91

83

76

70

64

60

58

54

51

47

44

42

38

7,447

240

14,770

Jan.

37

35

35

33

31

30

29

28

27

35

100

*64

46

41

49

52

68

621

313

195

147

120

102

90

81

*73

67

62

66

57

53

2,787

89.9

5,530

Feb.

49

46

43

43

*57

47

43

41

38

37

44

48

41

38

37

34

33

32

31

30

29

29

28

27

25_

27

26

30

_

-

1,033

36.9

2,050

Mar.

33

30

*28

43

255

142

238

154

120

99

83

72

66

60

54

52

48

44

42

38

37

36

34

32

31

30

28

26

25

24

23

2,025

65.3

4,020

Apr.

22

22

21

*20

20

19

19

18

17

17

16

16

16

15

15

15

14

13

13

13

12

12

12

IE

13

12

12

22

16

13

-

477

15.9

946

May

12

12

15

17

*14

12

12

11

10

10

9.7

9.7

9.3

9.0

8.7

8.4

8.4

8.4

8.1

7.8

7.5

7.5

7.5

6.9

6.3

5.5

5.5

5.8

5.5

5.3

5.1

280.9

9.06

557

June

4.7

4.4

4.4

4.7

4.4

4,9.

*4.7

4.4

4.9

4.7

4.7

4.2

4.0

4.0

3.8

3.6

3.6

4.0

4.0

3.8

4.0

4.0

3.6

3.6

3.6

3.2

3.2

2.4

2.1

1.9

-

117.5

3.92

233

July

1.9

2.4

.7

.9

.9

.4

.7

.9

.9

.6

.6

.4

.4

.3

.1

1.3

.9

.8

.6

-tl

.5

.5

.8

.3

.3

.4

.4

.3

.1

.9

.9

41.6

1.34

83

Aug.

0.9

.8

.8

.8

.8

.8

.8

.8

.6

.6

.6

.6

.6

.6

.6

.5

.5

*.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

it

.2

.2

16.2

0.52

32

Sept.

0.2

.2

.2

.2

.2

.3

.3

.2

.2

-il

.1

.1

*.

-

4.1

0.14

8.1

Calendar year 1950: Max 2,080 Mln 0.1 Mean 50.8 Ac-ft 36,770

Water year 1950-51: Max 2,080 Mln 0.1 Mean 55.1 Ac-ft 39,920

Peak discharge (base, 74O cfs). Nov. 18 (9:30 p.m.} 4.450 cfs (10.54 ft): Dec. 3

cfs (9.73 ft); Dec. 8 (4:30 a.m.) 3,720 cfs (9.88 ft); Jan. 18 (11 a.m.) 1,130 cfs

6:30 p.m.) 3,550

6.2E ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of normal recession hydrograph.
178 PAJAKO RIVER BASIN

San Benito River below McCoy Creek, near Hernandez, Calif.

Location. Lat 36°23'22", long. 120°53 I 42", in SW^ sec. 4, T. 18 S., R. 10 E., on right 

name 0.5 mile upstream from Gomez Creek, 6 miles west of town of Hernandez, and 18 

miles northeast of town of King City.

Drainage area. 108 sq mi.

Records available. December 1949 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,000 ft (from topographic map).

Extremes. 1949-50: Maximum discharge during period December to September, 338 cfs Feb. 6 

( gage height, 3.85 ft); no flow for several months.

1950-51: Maximum discharge during year, 233 cfs Nov. 19 (gage height, 3.41 ft); no 

flow Oct. 1, 2, June 22-24, June 27 to July 6.

Remarks. Records good. No regulation. At times all of flow is diverted for irrigation, 

iiuring 1950-51 water year, the estimated diversion was 170 acre-ft. The following 

record of diversion during 1949-50 was furnished by the local water user:

Diversion 

(acre-feet)

Discharge, In cubic feet per second, 1949-51 

1949-50

Day

1

2

3

4

5

6

7

8

9

10

11

12

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.

.

_

_

_

-

.

_

1.4

1.6

1.8

1.8

1.8

1.0

1.0

1.8

1.4

1.2

1.4

1.6

1.2

1.0

1.0

1.4

1.0

1.0

1.8

1.8

1.6

1.8

*1.2

1.2

-

-

-

Jan.

1.4

1.0

.8

l.TJ

.9

.9

.9

4.2

2.0

2.0

11

*J.6

3.3

11

6.4

2.9

*3.9

4.2

2.6

2.0

1.6

1.6

1.6

1.6

1.4

1.6

1.6

3.3

2.3

1.6

1.4

85.6

2.76

170

Feb.

1.6

*1.8

1.0

rrr

62

151 -^

12

8.8

41

17

9.9

6.6

5.4

*4.2

3.9

3.3

2.6

2.3

2.0

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.6

_

_

-

379.3

13.5

752

Mar.

1.6

1.6

1.6

1.6

1.6

1.4

TT3

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

1.6

1.6

1.6

17

2±

12

6.6

4.6

3.9

3.3

2.6

110.4

3.56

219

Apr.

2.6

2.3

2.3

1.8

*1.6

2.3

3.3

77

IB

22

14

10

8.2

7.1

6.6

5.8

3.9

2.9

2.9

2.6

2.9

2.9

2.9

2.6

2.6

2.3

2.3

2.0

1.2

1.0

-

249.9

8.33

496

May

1.6

*2.0

2.6

2.9

775

2.6

2.6

2.9

2.6

2.6

2.6

2.6

2.0

2.0

2.0

2.0

2.0

1.8

1.8

1.6

1.6

1.8

1.6

1.6

1.8

.7

O

TJ

0

.3

*.3

55.1

1.78

109

June

0.2 3

.1

O

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

*.l

0

0

0

0

0

o

0

0

0

-

0.7

0.02

1.4

July Aug. Sept.

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

Peak discharge (base. 100 cfs).--Feb. 6 (2 a.m.) 338 cfs (3.85 ft); Apr. 8 (5 p.m.) 196 cfs 3.42

.

Discharge measurement made on this day.
PAJARO RIVER BASIN 179

Discharge, In cubic feet per second, of San Benlto River below McCoy Creek, 

near Hernandez, Calif., 1949-51 Continued 

1950-51

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

a

0

.1

1.5

1.5

1.3

1.3

1.0

1.0

1.0

1.0

.8

.8

.8

.8

1.0

1.0

*.8

.8

.8

.8

.8

1.0

2.7

.6

3.8

~?.4 17

2.7

2.4

2.1

55.6

1.79

110

Nov.

1.8

1.8

 1.5

1.5

1.5

1.5

1.3 T73-

1.3

1.5

1.5

1.5

2.1

2.1

1.8

2.1

2.1

3.5

98

TS

13

*3.9

2.4

2.1

2.1

1.8

1.8

1.8

 1.8

2.1

-

198.5

6.62

394

Dec.

2.1

1.8

TTT

63

16

8.0

44

68

ZBi

14

8.9

6.3

*5.0

51

25

13

8.9

7.

5.

3.

3.

3.

2.

2.

2.

2.

2.

2.

2.

2.

2.

411.

13.

817

Jan.

1.5

1.3

1.3

1.3

1.3

1.0

T70

1.0

1.0

8.7

19

19

7.1

4.4

3.9

5.0

3.9

27

44

*T5

8.0

6.3

5.0

4.4

3.9

3.5

3.5

3.9

5.6

7.1

3.9

223.8

7.22

444

Feb.

3.5

3.5

3.1

3.1

3.5

*3.1

3.1

2.7

2.7

2.7

3.1

3.9

375

3.1

2.7

2.7

2.7

2.7

2^4

2.4

2.4

2.4

*2.7

3.1

2.7

2.7

3.5

3.5

_

_

-

83.2

2.97

165

Mar.

4.4

4.4

4.4

4.4

9.4

21

13

9.8

8.0

7.1

5.6

5.0

4.4

4.4

3.9

*3.9

3.5

3.5

3.1

3.1

3.1

3.1

3.1

2.7

777

2.7

2.7

2.7

2.7

3.1

3.1

158.0

5.10

313

Apr.

3.1

2.7

3.1

3.1

*3.1

3.1

3.1

2.7

2.7

2.4

1.8

1.3

T75

1.5

2.1

2.1

2.1

2.1

2.4

2.1

2.1

2.1

2.1

2.1

1.5

1.5

1.8

3.1

5.6

6.5

76.1

2.54

151

May

5.0

4.4

5.0

8.0

673

5.0

5.0

3.1

2.7

2.7

2.1

2.1

2.7

2.7

2.7

1.8

2.1

1.3

.8

.4

.6

.6

.6

.5

.4

.272-

.2

.2

.3

.2

69.9

2.25

139

June

0.2

.2

.2

*.2

_^3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

*.2

.2

.2

0

S

0

.3

.1

0

0

0

0

5.1

0.17

10

July

0

0

0

0

0

0

.2

.2

.2

*.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

75

.3

*.3

.2

.2

.2

.2

.3

5.5

0.18

11

Aug.

0.3

.4

.5

7?

7Z

.3

.3

.4

.2

.3

.3

.2

.4

.3

.5

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.4

.4

*.4

.5

.5

10.9

0.35

22

Sept.

0.5

.4

.3

.4

^e.

.6

.5

.4

.4

.3

.273-

.3

.3

.3

.4

.4

.3

.4

.6

.4

.4

.4

.5

.4

.4

.5

*.6

.6

.5

12.6

0.42

25

Calendar year 1950: Max 151 Mln 0 Mean 4.24 Ac-ft 3,070

Water year 1950-51: Max 98 Mln 0 Mean 3.59 Ac-ft 2,600

Peak discharge (base, 100 efs).--Hov. 19 (6:30 a.m.) 233 cfs (3.41); Dec. 4 (1:30 a.m.) 121 cfs 

(3.00 ft); DecT 8 (9:30 a.m.) 116 cfs (2.99 ft); Dec. 14 (12 m) 136 cfs (3.07 ft); Jan. 18 (9 p.m.) 

123 cfs (3.06 ft).

* Discharge measurement made on this day.
180 PAJARO RIVER BASIN

San Benito River near Willow Creek School, Calif.

Location. Lat 36°36 1 30", long. 121°12'00", in NE£ sec. 28, T. 15 S. , R. 7 E., on left 

oanK 0.9 mile downstream from Willow Creek, 0.9 mile northwest of Willow Creek School, 

and 10 miles northwest of San Benito.

Drainage area. 250 sq mi.

Records available. December 1939 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 970 ft (from topographic map). Prior to 

Tan. 28, 1948, at site 0.9 mile downstream at different datum.

Average discharge. 11 years (1940-51), 23.5 cfs; median of yearly mean discharges, 11 cfs,

Extremes. Maximum discharge during year, 67 cfs Nov. 19 (gage height, 4.2 ft, from floodmarK); minimum daily, 0.1 cfs on several days July to September.

1939-51: Maximum discharge, 6,200 cfs Apr. 4, 1941 (gage height, 7.8 ft, site and 

datum then in use), from rating curve extended above 1,600 cfs; no flow Sept. 19 to Oct. 

24, 1947.

Maximum stage known, about 9.0 ft (former site and datum), from floodmarks left by 

high water of 1937-38.

Remarks. Records fair except those for periods of no gage-height record or periods of 

abrupt change in stage, which are poor. Small diversions above station for irrigation.

Discharge, in cubic feet per second, water year October 1950 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.

~7? 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

T7S~ 2.3

.4

.3

.6

.4

10.5

0.34

21

Nov.

*0.2

 T3°

.3

.3

.3

.3 

.3 

.3

.3

.3

.3

.3

.4

.5

.4

.4

.4

3.2

a"2"6~ a40

alO*a.i

2.8

1.9

1.5

1.4

1.3

1.2

l'.2

99.3

3.31

197

Dec.

1.1

T7T

2.6

2.8

21

21 

18 

16

14

12

9.0

6.6

*6.0

6.9

20

19

11

7.5

5.5

4.3

3.3

2.6

2.3

2.0

4.6

13

8.4

5.8

4.5

3.9

3,3

259.1

8.36

514

Jan,

2.9

2.8

2.4

2.1

1.9

1.9 

1.8

T78

6.0

8.8

16

19

16

14

14

12

12

22

*30

20

14

11

*8.7

7.5

6.3

5.3

4.5

5.0

5.5

5.3

282.4

9.11

560

Feb.

4.8 779-

3.1

2.8

2.8

1.6 

.4

.1

.0

.0

.1

.0

.0

1.0

1.0

.975-

1.0

.9

1.0

1.2

*1.5

1.8

1.4

1.5

2.0

2.0

_

-

46.8

1.67

93

Mar.

779- 3.5

2.3

2.0

2.1

1.8

*1.5

1.9

2.0

1.8

1.6

1.6

1.5

1.5

1.5

1.3

1.3

1.2

1.2

1.2

1.2

1.2

1.1

1.0

1.0

1.0

1.0

*1.0

1.0

1.0

48.0

1.55

95

Apr.

1.0

1.0

1.1

T7T

1.1

.8 

.7

.6

Tff

.6

.6

*.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.8

.6

*.6

1.0

1.1

1.0

22.5

0.75

45

May

~7S 0.9

.9

.9

.9

.'7 

.6

.6

.5

; 5

.5

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.3

74

.4

.4

.4

.4

17.6

0.57

35

June

0.4

.4

.4

*.4

.5

.4 

.4

.4

.4

.4

.4

.3

75

.3

.3

.3

.3

*.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

-

10.8

0.36

21

July

-75 0.3

.3

.3

.3 

.2

.2 

.2

.2

*.2

.3

.3

.2

.2

.2

.2

.2

.1

7T

.1

.2

.2

,2

.2

,2

*.2

.2

.2

.2

.2

.2

6.6

0.21

13

Aug.

0.2

.2

.2

.2

.2

.2

.2 

.Z

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

71

.2

*.2

.2

.2

6.0

0.19

12

Sept.

0.2 -7?

.2

.2

.2 

.2

.2 

.2

.2

.1

.2

.2

.2

.2

.1

.1

.1

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

*.Z

.2

.2

-

5.4

0.18

U

Calendar year 1950: Max 107 Min 0.1 Mean 3.57 Ac-ft 2,590

Water year 1950-51: Max 40 Min o.l Mean 2.23 Ac-ft 1,620

Peak discharge (base, 150 cfs). No peak above base.

a No gage-height records discharge estimated on basis of records for Tree Pinos Creek near Tres 

Pinos.
PAJARO RIVER BASIN 

Tres Pinos Creek near Tres Pinos, Calif.

181

Location. Lat 36°45'20", long. 121°17'00", on right bank In Santa Ana y Quien Sabe Grant, 

a.'b miles southeast of Tres Pinos, San Benlto County, and 5.5 miles upstream from mouth.

Drainage area. 209 sq ml.

Records available. December 1940 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 570 ft (from topographic map).

Average discharge. 10 years (1941-51), 6.72 cfs; median of yearly mean discharges, 5.0 

el's.

Extremes. Maximum discharge during year, 642 cfs Nov. 19 (gage height, 4.15 ft), from 

rating curve extended above 150 cfs on basis of slope-area determination of peak flow; 

minimum daily, 0.1 cfs Aug. 13-15, 17, 18.

1940-51: Maximum discharge, 8,060 cfs Apr. 4, 1941 (gage height, 7.75 ft), from 

rating curve extended above 3,500 cfs; minimum, 0.1 cfs May 17, 1948, June 30 to July 

5, July 6, Sept. 18, 19-22, 23, 24, 1950, Aug. 13-15, 17, 18, 1951.

Flood in February 1938 reached a stage of about 9.0 ft, from floodmarks.

Remarks.--Records fair. Diversions above station for irrigation.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17ia

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

73

.2

.2

.2

.3

.3

.3

.3

.6

.9

.8

1.0

T5

11.4

0.37

23

Nov.

0.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

1.3

334

137

48

28

1.2

1.2

1.2

1.2

1.5

1.2

1.2

1.2

570.2

19.0

1,130

Dec.

1.0

1.0

125 .8

-33-

7.8

77

41

12

1.8

1.5

1.2

1.2

1.5

1.0

.8

1.0

1.0

.8

1.0

1.2

1.0

.8

.8

1.0

1.0

1.0

.8

1.0

1.0

1.0

327.0

10.5

649

Jan.

TTo" 0.8

1.0

1.2

1.5

1.2

1.2

1.2

1.2

1.0

5.7

58

21

6.6

1.2

6.6

1.5

29

82

29

21

14

14

9.0

6.6

6.6

6.6

4.4

4.4

4,4

4.4

347.3

11.2

689

Feb.

4.4

4.4

4.4

4.4

8.1

11~¥.4

2.8

2.8

2.8

2.8

3.5

3.5

2.8

2.8

 27? 2.2

2.2

2.2

2.2

2.8

2.8

2.8

2.8

2.8

2.8

2.8

3.5

_

-

99.0

3.54

196

Mar.

4.4

21

27

12

100

88

41

29

18

10

7.8

5.5

4.4

3.5

4.4

3.5

3.5

2.8

4.4

3.5

3.5

2.8

2.8

"2T2 2.2

2.2

3.5

2.8

2.8

2.8

2.8

424.1

13.7

841

Apr.

2.8

2.2

2.2

2.2

2.2

2.2

2.2

1.8

1.8

2.2

1.5

1.5

2.2

2.2

2.2

2.2

1.5

1.5

1.5

1.4

1.6

2.2

1.8

2.8

5.5

3.5

2.2

2.2

1.8

1.5

62.6

2.09

124

May

1.5

1.5

1.5

1.5

1.5

1.5

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.5

1.5

1.5

1.8

1.8

1.8

2.2

2.2

1.1

.2

75

.4

.4

40.3

1.30

80

June

0.4

TI

.4

.5

.6

.5

.5

.5

.6

.5

.5

1.0

1.2

1.2

1.2

1.0

1.2

1.2

1.2

l.S

1.5

.8

.4

.5

1.5

1.2

1.2

1.2

1.5

1.5

27.7

0.92

55

July

1.8

T75

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

.7

1.8

1.5

1.5

1.5

1.5

1.2

1.1

.5

.5

.3

74

1.5

1.5

1.5

1.5

1.5

1.5

1.2

1.2

41.0

1.32

81

Aug.

1.5

1.5

1.5

1.5

1.5

1.2

1.2

1.2

.7

.4

.2

.2

.1

.1

.1

.2

.1

.1

.2

1.0

1.5

1.5

1.8

TT§

1.8

1.8

1.8

1.8

1.8

1.8

1.8

33.7

1.09

67

Sept.

1.8

T75

1.8

1.5

1.5

1.8

1.5

1.0

.4

77

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

25.1

0.84

50

Calendar year 1950: Max 334 Mln o.l Mean 3.91 Ao-ft 2,830

Water year 1950-51: Max 334 Mln o.l Mean 5.51 Ao-ft 3,980

Peak discharge (base, 45O cfs). Hoy. 19 (5:30 a.m.) 642 ofs (4.15 ft). 

* Discharge measurement made on this day.

256498 O - 53 - 13
182 PAJARO RIVER BASIN

San Benito River near Hollister, Calif.

Location. Lat 36°47'20", long. 121°22'10", In SW£ 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 1951.

Sage.--Water-stage recorder. Altitude of gage, 370 ft (from topographic map).

Extremes. Maximum discharge during year, 1,490 cfs Nov. 19 (gage height, 6.56 ft); no flow 

ror several months.

1949-51: Maximum discharge, that of Nov. 19, 1950; no flow during several months 

each year.

Remarks. Records good. Several small diversions above station for irrigation.

Discharge, in cubic feet per second, water year October 1950 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.

O

0

O

Nov.

0

0

0

O

0

0

o

0

o

0

o

o

0

o

0

0

0

33

526

TS5

60

33

11

5.7

3.3

2.1

1.4

*1.2

1.1

1.4

-

841.2

28.0

1,670

Dec.

1.4

13~~ 1.1

90

*4l

*21

*66

*54

22

22

*9.5

*6.5

6.1

*6.1

5.4

5.1

5.4

5.1

3.6

3.3

3.3

3.0

3.0

2.8

2.8

2.5

2.1

1.8

1.8

1.8

1.6

414.1

13.4

821

Jan.

1.6

1.6

1.8

1.6

*1.6

1.6

1.6

1.4

m2.3

4.2

41

21

8.8

5.4

5.7

4.2

8.5

70

*15

16

6.9

*3.6

2.8

2.5

2.5

2.5

2.5

3.0

2.8

2.8

265.2

8.55

526

Feb.

2.5

275

2.5

2.5

3.6

*3.6

*3.0

2.8

2.8

2.8

3.3

4.2

3.9

3.6

3.3

3.3

3.3

3.3

3.3

3.3

3.9

5.8

5.1

3.9

3.9

6.4

6.5 6TT

_

-

105.0

3.75

208

Mar.

7.6

6.9

13

8.4

73

*86

*56

*31

*18

*13

9.5

7.6

6.9

5.7

5.1

4.5

4.2

3.6

3.3

3.0

3.0

3.0

3.0

2.8

2.8

2.8

2.8

2.5 *-2T5

2.3

2.5

396.8

12.8

787

Apr.

2.3

2.3

2.3

2.1

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.6

*1.6

1.6

1.6

1.6

1.6

1.4

1.2

T72

1.2

1.2

1.4

1.4

1.6

1.4

*1.4

2.5

2.8

275

52.7

1.76

105

May

2.3

2.3

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.8

2.8

3.0 370-

2.8

2.8

2.8

2.8

2.8

3.0

3.0

3.0

2.1

1.4

1.1

.9

1.1

1.1

1.1

.9

*£.

69.7

2.25

138

June

0.6

.5

.4'.3

*.4

.4

.4

.4

.3

.3

.3

.3

.2

.2

.2

.2

.1

7T

.1

*.3

.5

.6

.6

.4

.7

.8

75

.7

.5

.6

-

12.0

0.40

24

July

~76 0.7

.5

.4

.4

.3

.2

.1

.2

.2

*.2

.1

.1

.1

.1

.1

.1

0

o

0

0

.1

.1

.1 *.i

.1

.1

.1

.1

0

0

5.2

0.17

10

Aug.

0

0

0

Sept.

0

o

0

Calendar year 1950 : Max 526 Mln O Mean 4'.42 Ao-ft 3,2OO

Water year 1950-51 : Max 526 Mln 0 Mean 5.92 Ac-ft 4,29O

Peak discharge (base. 600 cfs). Nov. 19 a.m.) 1,490 cfs (6.56 ft).

* Discharge measurement made on this day.
PAJARO RIVER BASIN 183

Pajaro River near Chittenden, Calif.

Location. Lat 36°54'00", long. 121°35'50", on downstream side of right bank pier of State 

highway bridge, 0.6 mile downstream from Pescadero Creek, 1 mile southeast of Chittenden, 

and 2.5 miles downstream from San Benito River.

Drainage area. 1,188 sq mi.

Records available. December 1939 to September 1951.

Gage. Water-stage recorder. Datum of gage is 82.06 ft above mean sea level (levels by 

Uorps of Engineers). Prior to May 13, 1949, wire-weight gage on former bridge 100 ft 

downstream at same datum.

Average discharge. 11 years (1940-51), 152 cfs; median of yearly mean discharges, 90'cfs.

Extremes.--Maximum discharge during year, 7,810 cfs Nov. 19; maximum gage height, 22.73 ft 

Dec. 8; minimum daily discharge, 0.2 cfs Oct. 11-13.

1939-51: Maximum discharge, 11,100 cfs Apr. 4 or 5, 1941 (gage height, 26.2 ft, 

from floodmarks); no flow at times during July and August 1948.

Flood in February 1938 reached a stage of 31.3 feet, from floodmarks.

Remarks. Records fair. Small amount of storage and many diversions above station for 

Irrigation.

Discharge, In cubic feet per second, water year October 195O 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.

0.4

.4

.3

.4

.4

.4

.4

.3

.4

.3

.2

7Z

.2

.3

.4

.4

*.5

.4

.4 

.4

.4

.4

.6

.6

.6

.8

75

.6

.6

.8

*.6

13.9

0.45

28

Nov.

0.5

.4

74

.4

.4

.4

.5

.5

.4

.4

.4

.6

.6

.8

.8

1.4

2.6

559

6.640 

5,620

5,560

*2,880

*1,460

800

519

387

*297

235

181

147

-

25,296.5

843

50,170

Dec.

120

94

479

4,350

2,61O

1,410

*1,210

5,550

4,880

2,190

1,550

882

649

*675

592

462

579

522

277 

3240

B220

a200

a!80

a!65

a!55

a!40

a!25

a!20

a!05

alOO

a85

50,074

970

59,650

Jan.

a85

a80

a75

a 75

*a70

68

65

57

57

66

276

509

188

156

147

172

155

465

"STO 884 

*480

404

547

*501

262

256

212

191

183

172

155

7,019

226

13,920

Feb.

140

131

125

119

168

160

*143

158

132

127

126

146

155

125

120

114

107

101

96 

92

95

95

89

85

IS.

107

210

TS4

_

-

5,461

124

6,860

Mar.

217

2O4

177

184

1,250

913

950

781

*656

*528

429

562

512

275

240

215

186

170

155 

146

154

126

115

107

101

96

90

*85

81

78

72

9,414

304

18,670

Apr.

 BS 69

66

65

61

57

55

54

51

53

47

*43

40

40

41

38

34

32

29 

27

26

21

21

21

27

*29

23

51

55

48

-

1,270

42.5

2,520

Calendar year 1950: Max 6,64O Mln 0.2 Mean 171

May

34

28

28

35

41

32

25

21

21

21

21

21

21

21

21

20

19

17

15 

14

14

14

13

15

15

12

Tz

12

12

12

15

614

19.8

1,220

June

10

8.8

10

8.8

*6.5

7.1

8.0

8.8

8.4

7.1

6.5

6.8

8.0

8.0

7.1

6.8

6.5

6.1

5.5 

*5.7

4.9

4.9

4.7

4.1

5.6

5.5

2.8

2.6 276-

2.8

-

187.0

6.23

371

July

3.2

5.8

5.6

3.5

5.9

"579 4.5

5.5

5.5

3.5

3.5

3.3

*5.9

5.2

5.2

2.8

2.3

2.0

2.1 

2.9

2.2

1.8

1.7

1.6 *T76

1.6

1.6

1.8

1.8

1.6

1.8

84.8

2.74

168

Aug.

2.0

2.5

2.3

2.3

2.3

2.3

1.9

1.6

T7T

2.0

2.0

2.5

2.5

2.4

2.5

2.5

2.5

2.4

2.4 

2.5

2.3

1.8

1.9

2.5

2.6

"277 2.8

2.5

2.5

2.3

*2.2

69.8

2.25

158

Sept.

2.1

2.5

2.8

2.8

2.6

2.3

iiS.

1.8

2.0

2.1

2.3

2.5

*2.3

2.3

2.1

2.2

2.2

2.1

2.1 

2.1

2.0

2.0

2.3

2.5

5.0

5.1

*279"

2.5

2.7

2.7

-

70.5

2.55

140

Ac-ft 124,000

Water year 1950-51: Max 6,640 Mln 0.2 Mean 213 Ac-ft 153,900

Peak discharge (base. 400 cfs). Nov. 19 (8 a.m.) 7,810 cfs (22.68 ft)} Dec. 4 (7 a.m.) 5,510 cfs 

(19.59 ft;5 Dec. 8 (7:30 p.m.) 7,660 cfs (22.75 ft); Dec. 14 (5 p.m.) 805 cfs (9.10 ft)j Jan. 18 

(12 p.m.) 1,190 cfs (10.46 ft); Mar. 5 (l p.m.) 1,700 cfs (12.24 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby tributary streams.
SAN LORENZO RIVER BASIN

San Lorenzo River at Big Trees, Calif.

Location.--Lat 37 0 01'40", long. 122°03'30", in Canada del Rincon Grant, Santa Cruz County, 

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.

Drainage area.--110 sq mi.

Records available.--April 1937 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 150 ft (from topographic map).

Average discharge.--14 years, 141 cfs; median of yearly mean discharges, 111 cfs.

Extremes.--Maximum discharge during year, 10,600 cfs Nov. 18 (gage height, 14.50 ft); minImurnT 9.5 cfs Nov. 9.

1937-51: Maximum discharge, 24,000 cfs Feb. 27, 1940 (gage height, 21.1 ft, from 

floodmarks), 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. Many small diversions above station for domestic supply.

Rating tables, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1 to Nov. 16)

Oct. 1 to Nov. 18

0.8 9.5 2.5 151 

1.1 18 3.0 261 

1.5 56 4.0 550 

2.0 72

Note. Same as following 

table above 4.O ft.

Nov. 19 to Sept. 30

0.9 

1.4 

2.0 

2.5 

3.0

17

40

84

155

262

4.0 550

6.0 1,300

8.0 2,530

11.0 5,460

Discharge, In cubic feet per second, water year October 1950 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.

14

T*

14

14

14

14

14

14

14

*14

14

14

16

14

14

15

17

17

17

17

17

17

14

22

36

79

87

tt

16

43

25

675

21.8

1,340

Nov.

16

13

12

12

11

10

10

10

10

9.8

9.8

9.8

10

14

14

405

322

4,570

3,000

2,270

1,160

563

358

264

212

178

*157

139

126

132

-

13,827.4

461

27,430

Dec.

117

111

2,500"

1,570

643

531

938

4,450

1,340

840

650

*531

470

838

664

531

454

406

383

344

317

289

269

250

245

234

216

203

194

186

178

20,892

674

41,440

Jan.

168

161

170

161

151

144

139

135

131

207

411

304

229

203

*225

238

371

963

TOTT

483

391

374

335

302

276

255

238

223

229

207

192

8,724

281

17,300

Feb.

186

176

170

184

569

*252

220

203

188

192

264

289

258

220

205

192

184

178

168

161

161

161

165

150

142

155

153

172

_

-

5,494

196

10,900

Mar.

*182

170

153

532

778

540

743

502

424

355

315

289

264

248

229

216

205

192

182

176

*166

163

155

146

142

135

151

126

123

120

118

8,018

259

15,900

Apr.

114

111

110

108

106

105

105

100

99

95

93

91

90

88

87

87

87

87

87

86

86

85

84

3?

84

84

84

*160 -5?

86

-

2,870

95.7

5,690

May

86

86

161

178 m

97

90

87

87

86

84

85

82

81

80

79

77

76

76

74

73

73

65

64

62

60

58

58

57

55

50

2,537

81.8

5,030

June

51

TT

*47

45

49

51

49

48

46

46

46

44

44

44

42

41

41

42

42

44

42

41

41

59

40

40

58

38

56

3S

-

1,298

43.3

2,570

July

34

37

54

54

54

53

32

32

51

52

52

55

51

31

30

29

29

27

27

26

26

28

27

27

27

27

27

27

27

25

24

917

29.6

1,820

Aug.

25

tt

23

*24

25

25

25

25

25

25

24

23

23

25

19

21

21

21

21

21

21

22

21

21

20

20

21

21

20

21

21

694

22.4

1,380

Sept.

19

21

18

IS

20

20

20

19

19

18

19

19

*19

20

19

19

19

18

18

18

18

18

18

18

18

19

20

20

20

21

-

570

19.0

1,150

Calendar year 1950: Max 4,450 Kin 9.8 Mean 168 Ac-ft 121,800

Water year 1950-51: Max 4,450 Mln 9.8 Mean 182 Ac-ft 131,900

Peak discharge (base, 1,400 cfs).--Nov. 18 (12 p.m.) 10,600 cfs (14.50 ft); Dec. 3 (8 p.m.) 7,110 

cfs (12.25 ft;j Dec. 8 (5 a.m.J 7,350 cfs (12.33 ft). 

* Discharge measurement made on this day.
PESCADERO CREEK BASIN 185

Pesoadero Creek near Pescadero, Calif.

Location. Lat 37°15'40", long. 122°19'40", in SW£ sec. 6, T. 8 S. , R. 4 W. , on left bank 

at downstream side of highway bridge, 3.0 miles east of Pescadero and 6.0 miles upstream 

from mouth.

Drainage area.--46.2 sq mi.

Records available.--April to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 100 ft (from topographic map).

Extremes.--Maximum discharge during period, 65 cfs May 4 (gage height, 3.08 ft); minimum, 

2.U cfs Sept. 18 (gage height, 2.12 ft).

Remarks. Records good.

Rating table, Apr. 14 to Sept. 30 (gage height, in feet, 

and discharge, in cubic feet per second)

2.1

2.2

2.3 

2.6 

3.0

1.5

4.4

8.3

25

58

Discharge, in cubic feet per second, April 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. Mar. Apr.

_

_

_

-

.

_

_

-

_

_

22

22

21

21

20

*20

18

19

19

18

18

18

17

17

34

27

20

-

:

May

18

17

39

52

31

25

23

21

20

19

18

17

*16

16

15

15

15

14

14

14

14

12

14

13

13

13

12

12

12

12

11^

557

18.0 

1,100

June

11

11

*11

11

11

11

12

IT

11

11

11

10

10

10

9.7

9.7

9.7

9.7

9.2

9.2

9.7

9.2

8.7

8.7

8.3

8.7

8.7

8.3

7.9

T5

295.3

9.84 

586

July

7.9

7.9

7.9

8.3

7^

7.5

7.1

7.1

6.7

7.1

7.1

7.5

7.5

7.5

*7.1

6.3

6.3

6.3

5.9

5.5

5.1

5TT

5.9

5.9

6.3

6.3

6.3

6.3

5.9

5.9

5.5

206.9

6.67 

410

Aug.

5.1

5.1

5.5

5.5

5.9

6.3

6T3

5.9

5.9

6.3

6.3

6.3

5.9

5.9

5.5

4.7

4.4

4.7

.4

.4

.4

.4

.4

.4

.4

_a

!i

4.4

4.7

4.7

158.4

5.11 

314

Sept.

5.1

57T

4.7

5.1

5.1

4.7

3.8

3.2

2.9

2.6

2.6

2.6

*2.6

2.3 275-

2.6

2.3

2.3

2.6

2.6

2.6

2.3

2.6

2.6

2.6

2.9

2,9

2.9

2,9

2.9

94.6

3.15 

188

Calendar year : Max Min Mean Ac -ft

Water year : Max Hln Mean Ac-ft

Discharge measurement made on this day.
186 SAN FRANCISQUITO CREEK BASIN

San Francisquito Creek at Stanford University, Calif.

Location.--Lat 37°25'20", long. 122°11'25", on right bank in Rinconada del Arroyo de San

 Prancisquito Grant, at golf course, 0.8 mile downstream from confluence with Los Trancos 

Creek and 1.2 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 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 120 ft (from topographic map).

Average discharge.--11 years (1931-41, 1950-51), 19.8 cfs.

Extremes.--Maximum discharge during year, 3,650 cfs Nov. 18 (gage height, 10.4 ft); no 

flow Oct. 1 to Nov. 17.

1931-41, 1950-51: Maximum discharge, that of Nov. 18, 1950; no flow for several 

months of each year.

Remarks. Records good except those for period of no gage-height record, which are fair.

 Flow regulated since beginning of record by storage at Searsville Lake (capacity, 952 

acre-ft). About 900 acre-ft diverted annually to Los Trancos and Lagunita Canals for 

irrigation on the Stanford campus below station.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.5 

.6

1.0 

1.5

3.3

5.3

11

21

57

2.0 

2.5 

3.0 

4.0 

5.0

116

201

312

614

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

620

940

600

361

102

33

*30

21

16

12

*8.2

7.4

7.9

-

2,758.5

92.0

5,470

Dec.

7.7

793~~ 6.6

348

81

131

350

855

218

109

75

53

54

134

80

66

55

43

42

41

38

36

25

16

27

28

20

19

20

21

20

3,812.3

123

7,560

Jan.

17

15

21

25

19

16

15

13

7.9

57

*185

*100

51

37

71

77

54

290

192

113

94

169

124

83

74

*74

52

44

59

41

34

2,223.9

71.7

4,410

Feb.

33

*32

30

43

*258

88

60

51

45

45

56

59

1 45

40

38

36

35

34

30

28

33

30

28

25

24

24

24

34

_

-

1,288

46.0

2,550

Mar.

38

*31

24

340

555

239

251

141

120

92

75

60

52

46

39

40

34

30

26

26

24

*24

21

19

19

16

11

10

9.1

7.9

1*1

2,427.1

78.3

4,810

Apr.

6.0

6.0

6.8

9.1

7.9

6.6

6.3

6.3

5.8

4.3

1.8

1.6

1.7

2.1

1.5

1.1

.7

.6

.6

.5

.4

.4

.4

.4

.5

*.4

.4

18

6.2

2.2

106.6

3.55

211

May

2.4

2.4

16

23

8.5

6.6

4.3

2.6

2.2

1.6

1.0

1.0

1.0

1.1

1.0

1.0

.8

.8

1.2

1.3

1.4

1.5

1.4

1.2

1.3

1.3

1.2

1.2

1.2

*»!.!

1.0

93.6

3.02

186

June

0.8

.6

.4

.4

.3

73

.3

.3

.3

.3

.3

.3

11.8

0.39

23

July

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

0

i.2

.2

.3

.4

.3

.4

.4

.3

.3

.3

.2

.2

.3

.2

8.9

0.29

18

Aug.

~0.2

.3

**.4

.4

.3

.2

.3

.3

.3

.3

.3

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.2

.3

.3

8.4

0.27

17

Sept.

0.3

.3

.3

.3

.3

.3

.3

-Li

.4

.3

.3

.3

.3

.3

.3

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

9.3

0.31

18

Calendar year 1950 : Max . Kin _ Mean _ Ac-f t

Water year 1950-51= Max 940 Mln o Mean 34.9 Ac-ft 25,270

reaic discharge ipase. vuu era). NOV. is tabout iz p.m.j 3,6bO crs (10.4 rtj; Dec. & is:au p.m.; 

2,340 cfs (7.95 ft)} Dec. 8 (4 a.m.) 1,290 cfs- (5.68 ft); Mar. 4 (9:30 p.m.) 1,120 cfs (5.30 ft).

* Discharge measurement made on this day.

** Field estimate of discharge made on this day.

Note. No gage-height record Oct. 1 to Nov. 20; discharge estimated on basis of staff-gage reading, 

floodmark, records of operation of Searsville Lake, and records for stations on nearby streams.
STEVENS CREEK BASIN 187

Stevens Creek near Cupertino, Calif.

Location. Lat 37°18'20", long. 122°04'25", in SW^ sec. 22, T. 7 S., R. 2 W., on left bank 

oh downstream side of county highway bridge, 0.6 mile (revised) downstream from Stevens 

Creek dam and 2.5 miles southwest of Cupertino.

Drainage area.--18.1 sq mi.

Records available.--January 1930 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 385 ft (from topographic map).

Average discharge.--21 years, 11.6 cfs; median of yearly mean discharges, 9.1 cfs.

Extremes.--Maximum discharge during year, 362 cfs Mar. 5 (gage height, 3.44 ft); no flow

1930-51: Maximum discharge, 2,390 cfs Feb. 28, 1940 (gage height, 7.05 ft), from 

rating curve extended above 350 cfs; no flow at times during 1930-34, 1936, 1939, 1944, 

1947-51.

Remarks.--Records good. Flow regulated by Stevens Creek Reservoir beginning in 1936 (usable capacity, 4,000 acre-ft); water released during summer.

Rating table, water year 1950-51 (gage height, In fe 

and discharge, in cubic feet per second)

.1

.5

1.2

2.2

1.5

1.6

1.7 

1.9 

2.2

3.9 

6.7

2.5 

3.0 

3.5

220

372

Discharge, In cubic feet per second, water year Ootober 1950 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.

0.2

.2

-Q_'

0

0

0

0

0

0

0

0

0

0

0

0

0

O

a.l

a.l

g.l

g.l

a. 2

g.3

S^5

2.5

0.08

5.0

Nov.

ao.5

a. 5

a. 4

a. 4

a. 4

a. 4

a. 4

a. 3

a. 3

g.3

a. 3

a. 4

a. 5

g.5

g.7

gl.5

g2.8

g4.4

g52

g40

g26

*26

24

22

23

23

26

27

27

27

358.0

11.9

710

Dec.

27

27

27

15

15

13

8.6

11

9.0

11

10

11

*28

70

66

47

40

40

40

40

40

40

24

13

13

13

15

18

18

16

11

776. S

25.1

1,540

Jan.

11

11

11

12

14

16

15

13

13

25

*31

28-

24

23

23

24

24

*60

88

47

44

44

46

29

16

16

16

18

27

23

21

813

26. 2

1,610

Feb.

21

*21

21

21

55

40

34

34

g27

a24

a24

g24

a24

a24

a24

a24

24

24

21

19_

19

19

21

22

22

20

19

19

_

-

691

24.7

1,370

Mar.

20

20

20

52

224

79

*79

62

60

 0

59

40

30

22

21

20

19

19

16

15

15

16

20

20

20

18

17

17

17

16

11

1,126

36.3

2,230

Apr.

14

15

14

15

13

15

14

13

13

13

13

12

12

12

12

12

11

*11

11

11

10

10

11

10

12

11

10

16

16

12

-

374

12.5

742

May

11

11

15

.31

19

13

13

13

13

13

13

13

13

12

10

10

9.2

7.9 7.9

7.9

7.9

7.9

*7.9

8.4

9.2

14

14

15

18

18

18

394.2

12.7

782

June

17

16

16

16

16

16

15

14

14

14

14

13

13

13

13

13

13

13

13

13

*14

14

13

13

13

12

12

12

12

12

-

412

13.7

817

Calendar year 195O: Max 70 Mln 0 Mean 8.11 Ao-ft 5,8

July

11

11

11

12

12

12

12

12

12

12

12

11

10

10

*10

10

10

10

9.7

9.7

9.7

10

10

10

10

9.7

10

10

9.7

9.7

9.2

327.4

10.6

649

70

Aug.

9.2

8.8

8.8

8.8

9.2

9.

9.

9.

9.

9.

*9.

9.

9.

9.

9.

9.2

9.2

8.8

8.8

8.8

8.8

8.8

8.8

8.8

8.8

8.8

8.4

7.9

7.9

7.9

8.4

279.9

9.03

555

Sept.

8.4

7.9

7.9

8.4

8.4

8.4

8.4

7.9

7.5

7.5

7.5

7.9

7.9

*8.4

7.9

7.9

7.5

7.9

7.9

8.4

8.4

7.9

7.9

7.9

7.1

6.7

6.7

6.4

6.0

5.7

"

230.6

7.69

457

Water year 1950-51; Max 224 Mln O Mean 15.8 Ac-ft 11,470

Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis of recorded range of stage and records for 

Stevens Creek Reservoir operation.

g Computed from once-cr twice-daily staff-gage readings.
188 GUADALUPE RIVER BASIN

Alamitos Creek near Edenvale, Calif.

Location. Lat 37°14'20", long. 121°52 1 15", in SW£ sec. 16, T. 8 S., R. 1 E., on left bank, 

0.4 mile upstream from confluence with Los Capitancillos Creek and 4 miles southwest of 

Edenvale.

Drainage area. 35.0 sq mi.

Records available. January 1930 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 200 ft (from topographic map).

Average discharge. 21 years, 17.1 cfs.

Extremes --Maximum discharge during year, 650 cfs Dec. 8 (gage height, 5.75 ft); no flow 

Oct. 1 to Nov. 18, Aug. 7 to Sept. 30.

1930-51: Maximum discharge, 2,670 cfs Dec. 27, 1931 (gage height, 6.60 ft), from 

rating curve extended above 1,800 cfs; no flow for several months each year except 1942, 

1943.

Remarks. Records good except those above 60 cfs and those for periods of no gage-height 

record, which are fair. Flow regulated by Calero Reservoir beginning in 1935 (capacity, 

9,213 acre-ft) and Almaden Reservoir (capacity, 2,500 acre-ft); water released during 

summer. Small diversions above station.

Rating tables, water year 195O-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 19 to Dec. 3, Dec. 8)

Oct. 1 to Dec. 8 Dec. 8 to Sept. 3O

1.9

2.0

2.1

2.2

2.5 

5.6

1.2

1.3

1.4

1.5

.1 

1.0

2.4:

2.0 

2.3

4.5 

7.3

47

2.6 

3.0 

3.5

160

300

Discharge, in cubic feet per second, water year October 195O 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

2Z

24

25

26

27

28

29

30

31

TotaJ

Mean

Ac- ft

Oct.

0

O

0

Nov.

0

C

0

0

0

0

0

0

0

0

0

0

o

0

0

o

0

0

18

38

*53

61

65

64

41

39

40

47

40

29

-

535

17.8

1,060

Dec.

34

16

65

80

24

20

*34

~38 213

26

21

20

25

27

20

30

27

27

28

30

30

30

29

30

30

29

29

31

alO

a5

a5

1,063

34.3

2,110

Jan.

a5

alC

16

alO

*15

13

12

12

16

18

16

12

12

13

*24

24

16

59

*46

30

23

*19

18

17

16

25

24

18

20

18

18

595

19.2

1,180

Feb.

16

?3

16

16

19

18

18

18

18

21

21

21

21

22

22

25

25

25

25

26

26

27

27

27

27

27

27

*28T~

_

-

632

22.6

1,250

Mar.

 2T 26

23

23

24

21

11

*10

TS

14

14

14

14

15

21

22

16

15

15

19

21

24

25

25

25

*25

25

24

22

22

25

614

19.8

1,220

Apr.

25

25

25

25

25

25

24

24

26

30

29

27

15

12

11

11

14

*13

10

T3

27

34

32

25

28

27

31

37

35

26

708

23.6

1 ,-400

May

27

2S

38

32

*28

27

27

27

30

29

31

31

29

28

30

30

30

30

32

32

32

32

31

34

34

33

30

30

32

31

32

947

30.5

1,880

June

31

32

33

33

32

31

32

31

31

31

31

30

30

30

30

30

30

31

34

34

*30

30

30

42

55

50

49

49

47

38

1,047

34.9

2,080

July

36

76

34

34

33

21

20

20

18

13

12

12

12

11

11

11

12

14

12

11

12

12

11

11

11

11

9.5

8.7

9.5

8.0

5.7

492.4

15.9

977

Aug.

~73 1.0

.2

.1

.1

.1

0

T5

0

0

0

o

0

o

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

2.1

0.07

4.3

Sept.

0

0

0

Calendar year 195O: Max 213 Mln o Mean 7.97 Ac-ft 5,770

Water year 195O-51: Max 213 Mln 0 Mean 18.2 Ac-ft 13,160

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of trend of usable record.
GUADALUPE RIVER BASIN 189 

Los Capitancillos 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 fi-om confluence with Alamitos Creek.

Drainage area.--12.6 sq mi.

Records available.--January 1930 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 325 ft (from topographic map).

Average discharge.--21 years, 10.2 cfs; median of yearly mean discharges, 9.0 cfs.

Extremes. Maximum discharge during year, 202 cfs Dec. 8 (gage height, 2.09 ft); no flow 

Oct. 1-24, Sept. 9-11, 15-27.

1930-51: Maximum discharge, 1,160 cfs Dec. 28, 1931 (gage height, 4.05 ft), from 

rating curve extended above 840 cfs; no flow during part of each year except 1937, 1938 

1941-45.

Remarks.--Records good. Plow regulated by Guadalupe Reservoir beginning in 1936 (capacity, 

375TTO acre-ft); water released during summer. Small diversions above station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

.6 3.4

1.0 

1.3 

1.8 129

Discharge, in cubic feet per second, water year October 1950 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.

0

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

5.8

7.0

378

1.5

3.5

2.4

24.2

0.78

48

Nov.

1.8

1.5

1.4

1.3

1.2

1.2

1.2

1.1

1.0

175

1.0

1.0

1.1

1.3

1.3

15

7.7

59

73

64

 24

17

13

11

9.3

8.9

8.5

8.1

10

13

-

359.9

12.0

714

Dec.

13

15

57

41

22

19

30

"52 120

33

*25

20

19

24

19

17

16

15

14

14

13

12

12

12

12

11

TT

11

24

32

32

767

24.7

1,520

Jan.

31

31

31

31

31

31

30

30

30

32

26

16

15

15

*18

17

17

50

36

27

22

20

18

17

16

15

14

14

14

13

IS

724

23.4

1,440

Feb.

17

TT

17

17

17

17

17

17

17

17

17

17

17

16

12

10

10

9.8

9.8

9.8

*9.8

9.8

9.8

9-3 9.3

9.8

9.8

13

_

_

-

379.0

13.5

752

Mar.

13

12

11

11

13

13

14

*T4

14

13

12

12

12

12

11

11

11

10

10

10

10

10

9.8

9.8

9.8

9.3

775

9.3

9.5

9.3

9.3

344.2

11.1

683

Apr.

9.3

TT5

9.3

9.3

9.3

10

10

10

13

16

16

16

18

23

26

41

56

31

*11

9.8

10

14

16

16

16

16

16

17

16

16

519.3

17.3

1,030

May

16

16

18

TT

14

14

13

13

13

13

13

12

12

12

12

12

12

12

12

12

13

13

*14

17

17

15

15

15

15

15

17

434

14.0

861

June

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

15

13

14

14

14

14

141'4

14

12

8.1

488.1

16.3

968

July

8.1

8.1

8.5

8.5

8.5

8.5

8.5

8.1

8.1

8.1

8.1

8.1

7.7

7.7

7.3

7.3

875

9.3

9.3

9.3

*9.3

9.3

9.8

TT5

9.3

9.3

8.9

8.9

8.5

8.5

8.5

265.2

8.55

526

Aug.

 871 8.5

.7

.3

.7

.7

.7

.3

.3

.3

.3

.3

.0

.0

.0

.0

.0

* .0

.6

.6

.2

.9

.6

.0

.0

'.0

.2

_.!

202.5

6.53

402

Sept.

"72" 0.2

.2

.2

.2

.1

.1

.1

0

.1

0

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1

.1

1.9

0.06

3.8

Calendar year 1950: Max 120 Min 0 Mean 6.54 Ac-ft 4,740

Water year 1950-51: Max 120 Min o Mean 12.4 Ac-ft 8,950

Discharge measurement made on this day.
190 GUADALUPE RIVER BASIN

Los Gatos Creek below Los Gatos, Calif.

Location. Lat 37°14', long. 121°58', in Rinconada de Los Gatos Grant, on left bank 350 ft

 downstream from Cypress Road Bridge and 0.9 mile northeast of railroad station in Los 

Gatos, Santa Clara County.

Drainage area.--43.6 sq mi.

Records available.--June 1944 to September 1951.

Average discharge.--? years, 25.4 cfs.

Gage.--Water-stage recorder. Altitude of gage is 310 ft (from topographic map).

Extremes.--Maximum discharge during year, 3,810 cfs Nov. 18 (gage height, 8.59 ft), from

 rating curve extended above 150 cfs on basis of previous high-water rating; no flow on 

many days.

1944-51: Maximum discharge, 5,600 cfs Feb. 1, 1945 (gage height, 10.55 ft), from 

rating curve extended above 1,300 cfs; no flow during parts of most years.

Remarks.--Records good except those above 300 cfs and those for period of no gage-height

 record, which are fair. Flow regulated by several small reservoirs above station. 

Several diversions above station for irrigation. Vasona percolation reservoir is just 

below station.

Discharge, in cubic feet per second, water year October 1950 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.

0

T>

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.3

~7.5 27

1.0

.6

2.2

.6

40.2

1.30

80

Nov.

0.3

.2

.1

.1

.1

.1

.1

.1 .1-

.1

0

T5

0

.1

0

242

61

0,890 ~S54~

589

309

217

182

*140

121

113

108

*104

101

101

-

4,973.4

166

9,860

Dec.

97

94

651

437

232

*194

270

1,290 

 56?

420

340

287

266

350

266

234

220

*205

185

168

154

143

129

120

120

117

106

102

*98

96

92

8,045

260

15,960

Jan.

91

89

85

83

*80

77

72

70

69

97

134

100

85

77

91

*89

93

389

*253

184

148

*134

118

71

*63

58

52

47

62

51

43

3,155

102

6,260

Feb.

41

*38

33

36

*74

47

39

35 

32

34

64

58

44

38

35

33

30

28

25

22

*23

23

25

24

11

28

30

42

_

_

-

999

35.7

1,980

Mar.

50

*33

23

53

109

97

*123 -5? 

72

60

52

46

43

40

*37

41

38

36

36

34

28

27

25

23

21

21

*16

15

14

13

12

1,322

42.6

2,620

Apr.

11

11

11

10

*8.9

g7.6

g6.8

gS.8 

£5.0

g5.3

g5.3

g5.3

gS.8

g3.1

gS.l

g4.0

gZ.5 *ST5

g3.5

g2.8

12

14

14

15

13

g3.3

g2.8

TB~ 25

g5.3

251.5

8.38

499

May

g3.5

*3.5

33

SB- 47

18

13

g7.6 

g4.0

g4.0

6.2

g3.8

g3.5

g6.0

g4.0

g2.7

g3.8

g2.5

g2.5

g3.3

g2.5

g2.8

*g3.3

g2.6

gl.5

gl.3

gl.5

gl.3

gl.2

¥75

g2.0

223.4

7.21

443

June

gl.3

gl.3

El. 4

gl.3

g3.1

El- 7

11

*g2.4 

12

El- 7

gl.3

gl.2

gl.2

gl.2

gl.l

gl.O

gl.O

gl.O

g-|

E-S

5.2

7.2

13

IT. 5

gl.3

g3.8

g2.7

El- 6

gl.3

gl.2

86.8

2.89

172

July

/..)

> al

(**)

, a. 5

23.0

0.74

46

Aug.

gl.2

gl.2

gl.2

gl.2

al.2

gl.2

gl.2

EL 7 

gl.2

gl.5

g2.0

aT7B~

El- 6

gl.5

gl.3

gl.l

g.9

*gl.T5

al.O

g-9

g.9

gl.O

gl.O

gl.O

gl.O

al.O

al.O

2.0

g.9

g-9

g.9

37.5

1.21

74

Sept.

gO. 9

al.O

gTT5

gl.O

g-9

g-8

g.8

g-8 

a. 7

g.6

g-5

g.5

B-4

*g.5

g-3

a. 3

g.3

g.3

g-3

g.3

g-3

g-3

a. 2

B.?

g-2

g-2

g-2

g-3

g-3

a. 5

-

14.9

0.50

30

Calendar year 1950: Max 1,890 Min 0 Mean 49.0 Ac-ft 35,510

Water year 1950-51: Max 1,890 Min 0 Mean 52.5 Ac-ft 38,020

Peak discharge (base, 600 cfs).--Nov. 16 (l p.m.) 880 cfs (5.88 ft); Nov. 18 (8:30 p.m.) 3,810 cfs 

8.59 ft); Dec. 3 (7 p.m.) 1,780 cfs (6.45 ft); Dec. 8 (2 a.m.) 1,930 cfs (6.60 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.

a No gage-height record; discharge estimated on the basis of engineers' estimates of flow.

g Computed from twice-daily staff-gage readings.
GUADALUPE RIVER BASIN 191

Guadalupe River at San Jose, Calif.

Location.--Lat 37°20'00", long. 121°54'00", at San Jose, Santa Clara County, on right bank 

iuu rt downstream from Los Gatos Creek.

Drainage area.--131 sq ml.

Records available.--January 1930 to September 1951.

Gage.--Water-stage recorder. Altitude of gage Is 80 ft (from topographic map).

Average discharge.--21 years, 33.6 cfs (affected by storage and spreading since 1936).

Extremes.--Maximum discharge during year, 2,730 cfs Nov. 18 (gage height, 9.0 ft); no flow 

during most of year.

1930-51: 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 during parts of 

each year.

Remarks. Records fair. Flow regulated by several reservoirs. Small diversions above 

station.

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

 21 .4

0

0

0

0

21.4

0.69

42

Hov.

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

78

13

1,110 *847

*452

*284

180

131

*81

50

40

*32

32

32

32

-

3,394

113

6,730

Dec.

28

2S

488

477

167

*143

161

1,520 

 ST?

425

*286

223

198

304

213

156

138

123 

106

91

*76

68

61

52

52

50

42

38

*33

29

28

6,424

207

12,740

Jan.

28

26

5.0

U

0

0

0

0 

.5

8.3

4.4

.4

.7

6.7

90

*72

51

*363 *'278~

125

102

*57

28

0

0

0

0

.2

1.7

0

0

L,247.9

40.3

2,480

Feb.

0

0

0

5.1

20

.2

0

0 

0

0

1.6

7.1

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

6.4

_

-

-

40.4

1.44

80

Mar.

13

6.0

"2.3 0

74

34

84

34 

15

*.7

.3

.7

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

264.0

8.52

524

Apr.

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

.3

7T

-

0.4

0.01

0.8

May

5"0

.1

2.8

TT5

.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

4.9

0.16

9.7

June

0

TJ

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

2.2

o 4.5

1.0

-

7.7

0.26

15

July

7.1

TTT

4.5

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

18.7

0.60

37

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 1,520 Mln 0 Mean 31.1 Ac-ft 22,510

Water year 1950-51: Max 1,520 Mln 0 Mean 31.3 Ac-ft 22,660

Discharge measurement made on this day.
192 GUADALUPE RIVER BASIN

Campbell Creek at Saratoga, Calif.

Location.--Lat 37°15'15", long. 122°02'25", in Quito Grant, on right bank 0.5 mile southwest of Saratoga, Santa Clara County.

Drainage area.--8.8 sq mi, approximately.

Records available.--October 1933 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 500 ft (from topographic map).

Average discharge.--18 years, 8.82 cfs.

Extremes.--Maximum discharge during year, 826 cfs Nov. 18 (gage height, 4.07 ft); no flow 

during several months.

1933-51: Maximum discharge, 1,650 cfs Jan. 21, 1943, from rating curve extended 

above 300 cfs by logarithmic plotting; maximum gage height, 5.90 ft Mar. 1, 1940; no 

flow during part of each water year, except possibly 1941, 1943, 1945.

Remarks.--Records good. Diversion and regulation above station by San Jose Water Works. 

Revision.--W 1151: 1940(maximum gage height).

Rating table, water year 1959-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.6

.7

.9

1.0

1.1 

1.3 

1.5 

1.7 

2.0

2.4 

5.5

2.3 

2.7 

3.2

75

150

315

Discharge, in cubic feet per second, water year October 1950 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.

0

tr

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.4

12

T.O

1.4

1.2

3.7

1.7

25.4

0.82

50

Nov.

0.7

.3

.6

.6

.5

.4

.2

.3

.3

.1

00"

.4

1.0

.6

35

10

292 ITS'

104

68

36

23

15

13

10

*9.5

8.9

8.6

8.4

-

766.4

25.5

1,520

Dec.

8.1

BTT

140

97

51

38

*49

205 ~9T

60

41

33

28

41

33

28

24

21

20

18

16

15

14

12

13

13

12

12

*11

11

11

1,175.2

37.9

2,330

Jan.

11

11

10

10

10

9.5

9.2

9T

9.2

12

14

11

9.8

9.S

13

11

12

4855"

32

26

24

20

18

17

16

14

13

14

12

11

491.4

15.9

975

Feb.

11

10

10

11

18_

13

12

11

11

10

13

13

11

11

10

9.8

10

11

10

9.5

*8.9

9.8

9.2

8.1

7.8

9.5

9.5

11

_

_

-

299.1

10.7

593

Mar.

10

8.9

7.8

19

46

43

*55

4T

33

26

23

20

18

16

15

14

13

12

11

11

11

10

9.2

8.4

8.1

7.8

775- 7.5

8.1

7.8

7.8

535.9

17.3

1,060

Apr.

7.0

7.0

6.8

7.3

*6.5

6.3

6.1

5.5

4.9

4.4

4.4

4.4

4.4

5.3

4.4

3.9

3.9

3.9

3.6

3.4

3.6

3.6

3.4

3.8

4.4

4.4

3.8

8.0

5TK

4.1

-

148.0

4.93

294

May

3.6

3.3

11

17

T.8

7.3

6.3

5.3

4.5

4.5

4.7

3.4

3.3

3.0

2.5

*2.2

2.3

3.0

2.8

2.4

2.2

2.1

1.7

1.7

1.2

1.8

1.6

2.0

1.7

1.8

1.3

121.3

3.91

241

June

.3

.1

.1

.5

T7F

.3

.4

.3

.O

.1

.1

.1

.6

.7

.5

.4

.3

.3

.4

.9

00"

0

0

0

0

0

0

0

0

-

18.9

0.63

37

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 195O : Max 292 Mln 0 Mean 7.51 Ac-ft 5,440

Water year 1950-51 : Max 292 Mln o Mean 9.81 Ac-ft 7,100

Discharge measurement made on this day.
COYOTE CREEK BASIN 193

Coyote Creek near Madrone, Calif.

Location. Lat 37°10'06", long. 121°38'55", near southeast corner of Laguna Seca on right 

came, 1.2 miles downstream from Anderson Dam at mouth of Canyon 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 1951.

Gage.--Water-stage recorder. Prior to Mar. 1, 1950, staff gages and water stage recorders 

at various sites within 1.4 miles upstream, at different datums. Altitude of gage is 

375 ft (from topographic map).

Average discharge.--45 years, 71.9 cfs; median of yearly mean discharges, 62.0 cfs. 

Extremes --Maximum discharge during year, 230 cfs Nov. 22 (gage height, 4.00 ft); no flow

1902-12, 1916-51: 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. No large diversion.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.2

1.3 

1.5 

1.7

1.2 

2.1

1.8

1.9

2.0 

2.2

2.9

4.2

7.5

24

2.4 

2.8 

3.2 

3.9

50

105

147

220

Discharge, in cubic feet per second, water year October 1950 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.

2.0

1.1

1.3

1.3

1.3

1.5

1.1

1.9

*1.3

.7

.6

.4

17?

1.0

2.1

2.0

2.1

2.0

2.1

2.2

2.1

2.2

2.5

*2.9

2.6

3.1

3.5

2 .9

2.6

3.2

3.2

60.6

1.95

120

Nov.

3.1

2.9

2.8

2.8

3.0

2.8

3.1

2.2

2.3

2.7

4.8

4.4

3.5

10

31

31

*15

38

74

43

.6

*141

a212 a'ZTSO'

a92

a.S

a32

*a95

80

25

-

1,160.5

38.7

2,300

Dec.

50

105

134

~BT 158

*48

117

144

125

129

128

129

130

127

124

130

131

103

23

29

12 38"

33

33

33

33

33

33

28

29

30

2,451

79.1

4,860

Jan.

30 30"

30

79

108

41

41

41

41

42

47

47

47

47

44

*32

34

35

39

66

65

62

83

77

65

*71

80

86

73

79

90

1,752

56.5

3,480

Feb.

89

155

83

78

72

78

81

81

81

81

81

80

77

77

77

71

74

74

72

70

71

*71

70

70

64

60 'BTf

60

_

-

-

2,088

74.6

4,140

Mar.

59

59

*60

60

62

65

TO^ 70

66

66

66

64

62

62

62

64

64

64

62

59

59

59

56

53

53

52

47

38

29

 2? 24

1,758

56.7

3,490

Apr.

25

18"g"0"

*34

54

52

56

58

59

60

60

62

64

64

65

64

64

64

64

62

64

66

65

66

68

70 70"

70

70

70

-

1,748

58.3

3,470

May

70

70

68

62

*59

59

60

66

70

71

71

72 72"

68

68

68

66

68

68

72

72

72

72

72

72

72

72

72

71

71

72

2,138

69.0

4,240

June

72

72

74

72

72

72

*72

72

71

71

68

66

66

66

65

65

66

64

65

65

65

62 ^2"

64

62

62

64

62

62

64

-

2,005

66.8

3,980

July

65

64

64

66

65

64

65

64

64

65

65

59

64

64

64

64

65

66

68

*71

71

71

71

72

74

TO

66

62

64

64

2,039

65.8

4,040

Aug.

64

64

62

58

59

60

60

60

60

60

64

65

59

60

59

58

59

60

59

59

59

59

58

58

59

58

56Hese

56

1,849

59.6

3,670

Sept.

56

58

*5^B"

53

48

46

46

47

47

46

46

47

47

46

46

46

44

35

44

44

40

47

47

48

48

53

53

54

56

56

-

1,452

48.4

2,880

Calendar year 1950 : Max 212 Mln 0 Mean 24.9 Ac-ft 18,060

Water year 1950-51 : Max 212 Mln 0.4 Mean 56.2 Ac-ft 40,670

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis- of records of reservoir operation furnished 

by Santa Clara Valley Water Conservation District.
194 COYOTE CREEK BASIN

Coyote Creek near Edenvale, Calif.

Location.--Lat 37°16'15", long. 121°47'55", on left bank at east boundary of Santa Teresa 

urant, at "The Narrows," 1.5 miles northeast of Edenvale, Santa Clara County, and 

7 miles south of San Jose.

Drainage area.--229 sq mi.

Records available. October 1916 to September 1951.

Sage. 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.

Average discharge.--35 years, 36.4 cfs; affected by storage and spreading since 1936.

Extremes.--Maximum discharge during year, 400 cfs Dec. 8 (gage height, 3.80 ft); no flow 

for several periods.

1916-51: 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 except those for period of no gage-height record, which are poor. 

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 1950 (capacity, 75,000 acre-ft), and by detention in percolating reservoir 

6 miles above station; water released during summer.

Rating table, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Aug. 25 to Sept. 3)

2.16

2.2

2.3

2.4 2.2

.1

2.5 5.

2.6 12

2.7 20

2.9 45

3.1 85

3.3 146

3.6 285

Discharge, In cubic feet per second, water year October 195O 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.

0

0

0

Nov.

0

o

0

Dec.

O

0

0

92

14

0

3.2

~85 255

83

83

83

85

83

74

85

85

80

3.7

0

0

0

0

0

0

o

0

0

0

0

o

1,193.9

38.5

2,370

Jan.

0

?

0

0

0

o

0

0 

0

0

0

0

0

0

0

0

0

0

0

o

12

14

7.4

1.4

.8

0

0

0

o

0

0

35.6

1.15

71

Feb.

3.2

"376 7.5

4.6

1.4

0 5

0 

1.8

3.3

4.2

5.5

2.7

2.0

3.0

3.0

.7

2.7

2.4

1.0

.9

2.0

2.7

1.1

.8

.4

0

0

_

_-

60.5

2.16

120

Mar.

0

0

0

0

0

o

0

.8 

3.6

373

3.3

3.3

3.0

2.4

1.8

1.6

2.4

2.4

2.4

1.6

.6

.6

.6

.2

0

0

0

0

0

0

0

33.9

1.09

67

Apr.

0

?

0

0

0

o

0

0 

9.3

16

10

4.8

23

14

12

13

6.5

3.9

3.9

4.7

7.5

6.5

7.5

12

11

*10

7.5

5.5

2.0

1.2

-

191.8

6.39

380

Calendar year 1950: Max 255 Mln O Mean 3.60

May

3.6

3.6

5.0

3.0

1.8

1.6

.8

375 

5.5

5.5

3.9

4.2

5.5

4.2

3.3

2.7

5.0

5.5

6.5

22

30

21

17

12

10

9.3

8.7

7.0

6.5

13

14

247.7

7.99

491

June

13

13

13

12

14

15

*14

12 

9.3

10

8.7

8.7

9.3

12

15

14

14

14

16

15

14

13

13

14

13

9.3

8.7

8.1

171

11

-

364.2

12.1

722

July

12

14

16

16

15

15

14

13 

13

14

14

14

13

13

14

14

19

19

18

18

18

18

17

17

*16

15

13

13

4.6

T76

5.0

439.2

14.2

871

Aug.

11

9.3

10

7.0

7.5

5.5

10'

11

12

8.7

11

12

5.5

8.7

9.3

7.5

6.5

10

14

14

14

16

18

12

12

14

11

11

11

11

329.8

10.6

654

Sept.

~8.7 10

*9.3

9.3

7.0

8.1

,

L a8

1

1-

as

1"

1-'"

219.4

7.31

435

Ac-ft 2,610

Water year 1950-51: Max 255 Mln 0 Mean 8.54 Ac-ft 6,180

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

Coyote Creek near Madrone.
ALAMEDA CREEK BASIN 195 

Alameda Creek near Niles, Calif.

Location. Lat 37°35'15", long. 121°57'35", in Arroyo de la Alameda grant, on right bank 

U.a mile downstream from railroad bridge and 1,2 miles northeast of Niles, Alameda 

County.

Drainage area. 633 sq mi.

Records available. October 1916 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 100 ft (from topo- 

 graphic map). Prior to Dec. 28, 1923, water-stage recorder at site 800 ft upstream 

at different datum.

Average discharge.--34 years (1916-19, 1920-51), 78.3 cfs.

Extremes. Maximum discharge during year, 15,100 cfs Nov. 19 (gage height, 12.5 ft, from 

floodmarks), from rating curve extended above 8,700 cfs; no flow for several days. 

1916-51: Maximum discharge, that of Nov. 19, 1950; no flow at times.

Remarks. Records good. Flow regulated by Calaveras Reservoir beginning in 1925 (usable 

capacity, 96,900 acre-ft). Diversions for San Francisco water supply and other uses 

above station.

Cooperation.--Gage-height record collected in cooperation with city of San Francisco.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.6

1.7

1.8

1.9

.4 

1.1 

2.2

2.0 

Z.2

2.5 

2.8

3.6

7.4

16

30

3.1 

3.4 

3.7 

4.4

63

115

305

560

5.0 

6.0 

7.0 

9.2

970

1,840

3,300

7,740

Discharge, In cubic feet per second, water year October 1950 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.

0

3

0

0

0

0

0

0 

0

0

0

0

.1

.1

.1

0

0

0

0 

0

.3

.3

.3

.5

.9

1.6

1.8

2.4

2.7

276

1.8

15.5

0.50

31

Nov.

1.3

1.0

.7

.6

.4

.3

.3

.2 

.2

.1

.1

.1

.2

.3

.3

.8

1.0

3,150

7,620 

*2^!5

1,610

676

340

177

107

74

37

22

16

15

-

16,251.9

542

32,250

Dec.

13

11

2,410

5,380

1,310

901

1,980

5,500 

2,200

1,050

634

*400

290

492

452

295

205

161

140 

107

*78

69

63

58

51

44

38

35

31

29

25

24,352

786

48,300

Jan.

22

20

21

21

19

17

16

16 

15

34

*187

290

138

86

75

103

76

487

1,040 

506

315

385

335

231

161

118

90

78

72

64

58

5,086

164

10,090

Feb.

51

45

41

41

540

*335

155

101 

81

72

70

105

78

60

55

46

42

43

38 

36

35

42

39

34

33

31

31

*30

-

-

2,310

82.5

4,580

Mar.

46

44

41

108

1.350

942

970

697 

500

355

250

191

149

*138

103

92

81

72

64 

60

54

50

46

42

38

36

32

29

26

25

.24

6,655

215

13,200

Apr.

22

21

21

20

20

19

19

25 

27

18

*16

15

15

15

15

15

15

15

15 

14

13

13

12

12

12

11

TT

15

15

13

-

489

16.3

970

May

12

11

13

15

lT

11

9.9

10 

9.6

9.4

9.4

8.4

8.6

9.4

8.6

*8.2

8.2

7.2

6.6 

6.4

6.6

6.8

6.4

6.4

6.2

6.2

5.6

4.8

4.4

478

5.4

259.5

8.37

515

June

3.8

3.6

378

3.8

3.8

4.4

4.8

5.2 

17

18

*17

6.0

4.8

4.6

25

24

22

22

22 

23

24

24

26

25

25

26

26

24

24

24

-

486.6

16.2

965

July

24

23

16

21

20

20

19

18 

18

20

21

22

24

*24

23

22

22

21

20 

7.4

 572 4.8

6.0

5.4

4.8

5.2

4.8

5.0

4.8

6.4

5.8

463.6

15.0

920

Aug.

6.0

774

7.9

7.4

7.4

6.6

7.0

8.4 

8.9

8.6

*9.1

8.6

8.7

8.3

7.2

7.0

8.9

8.6

8.9 

10

10

10

10

10

9.6

8.2

8.9

8.2

8.2

10

10

264.0

8.52

524

Sept.

9.2

9.4

9.6

9.6

12

13

T2

11 

10

9.9

10

10

10

9.9

9.6

9.9

11

9.6

11 

9.4

9.2

8.6

8.6

7.9

7.4

7.9

8.4

8.2

8.2

7.9

-

288.4

9.61

572

Calendar year 1950: Max 7,620 Mln 0 Mean 123 Ac-ft 89,270

Water year 1950-51: Max 7,620 Mln 0 Mean 156 Ac-ft 112,900

Discharge measurement made on this day.
SAN LORENZO CREEK BASIN

San Lorenzo Creek at Hayward, Calif.

Location.--Lat 37°41' , long. 122°04' , in San Lorenzo Grant, on right bank at highway 

Drldge on B Street, just outside city limits of Hayward, Alameda County, 0.5 mile 

downstream from Palomares Creek.

Drainage area.--38.0 sq mi.

Records available.--January to September 1940, October 1946 to September 1951.

Gage.--Water-stage recorder and concrete control. 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.--5 years (1946-51), 9.50 cfs.

Extremes.--Maximum discharge during year, 2,610 cfs Dec. 3 (gage height, 12.70 ft); no

 flow Oct. 1-22, 24-25, 27-28.

1940, 1946-51: Maximum discharge observed, 3,440 cfs Feb. 27, 1940 (gage height, 

13.13 ft), on basis of slope-area computation of peak flow; no flow during part of 

each year.

Flood of Jan. 24, 1942, reached a stage of 15.7 ft, from floodmarks.

Remarks.--Records good except those below 2 cfs, which are fair. A few very small diversions above station.

Rating table, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second)

(Shifting-control method used Nov. 18-21, Dec. 5-10, 14,

15, May 9 to Aug. ll)

2.5 

2.8 

3.1 

3.5

8.2

20

44

81

4.0 

5.0

7.0

141

304

744

Discharge, in cubic feet per second, water year October 1950 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.

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

.2

0

0

.8

.3

.1

1.5

0.05

3.0

Nov.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

2

1.0

256

134

*255

122

40

20

14

12

10

9.4

8.2

7.6

9.7

-

902.4

30.1

1,790

Dec.

~a7f 7.6

*666

307

128

208

*544

554

194

124

93

74

72

212

102

80

71

66

59

54

49

46

43

40

38

35

31

30

28

27

25

3,816.3

123

7,570

Jan.

23

23

34

27

23

21

20

20

20

42

*108

53

39

35

45

41

40

*375

*146

93

128

435

148

109

90

77

67

62

58

51

46

2,499

80.6

4,960

Feb.

44

40

38

97

252

*84

69

63

57

54

63

57

47

45

41

38

38

40

33

32

33

30

27

26

25

25

23

24

_

-

1,425

50.9

2,830

Mar.

25

*22

21

157

501

171

156

105

94

73

64

57

53

*47

45

42

38

55

55

51

50

28

26

25

25

24

22

21

20

20

12.

1,830

59.0

5,650

Apr.

18

18

17

16

16

15

15

15

14

15

*13

15

15

15

13

13

12

12

12

12

11

11

11

11

12

11

10

71

11

10

-

402

15.4

797

May

11

10

13

T2

9.4

9.4

8.8

8.5

8.0

*7.6

7.3

7.3

7.3

7.1

6.5

6.0

6.0

6.0

5.7

5.7

5.2

5.2

5.2

5.2

5.2

4.5

4.2

4.0

3.6

3.8

5^5

212.0

6.84

420

June

2.5

2.9

3.5

5.8

4.0

4.0

4.0

5.8

5.5

5.3

*5.1

5.1

2.3

2.1

2.1

2.1

2.1

2.1

1.6

T7L

2.5

2.5

2.1

2.0

1.8

2.0

2.0

2.0

2.0

2.3

-

78.8

2.63

156

July

2.9 "279

2.7

2.5

2.3

1.6

1.8

1.4

1.5

1.5

1.6

2.0

2.3

2.1

1.8

1.4

1.0

.6

.5

.5

.4

.4

.6

1.2

1.3

1.2

1.0

.8

.5

.4

.3

42.2

1.36

84

Aug.

0.3

.5

.9

79

.8

.8

.8

.8

.6

.6

*.8

.8

.8

.6

.5

.2

.1

.1

.1

.1

.4

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

12.6

0.41

25

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 1950 : Max 666 Mln 0 Mean 21.9 Ac-ft 15,880

Water year 1950-51 : Max 666 Mln 0 Mean 30.8 Ac-ft 22,270

Peak discharge (base, 550 cfs). --Nov. 18 (7:30 p.m.) 731 cfs 

(12.70 ft); Dec. 8 (4 a.m.) 983 cfs (7.80 ft); Jan. 11 (ll a.

818

. ..

1,400 cfs (9.23 ft); Jan. 22 (5 a.m. 

(1:50 a.m.) 759 cfs (6.98 ft). 

* Discharge measurement made on this day.

i.75 ft); Dec. 5 (4 p.m.) 2,610 cfs

tj; Jan. 11 (.J.J. a.m.; 408 cfs (5.56 ft); Jan. 18 (2 p.m.) 

:fs (7.27 ft); Feb. 5 (2 a.m.) 718 cfs (6.90 ft); Mar. 5
KERN RIVER BASIN 197 

Kern River No. 3 Canal near Kernville, Calif.

Location. Lat 35°54'20", long. 118°28'00", In NE£ seo. 25, T. 23 S. , R. 32 E., on right 

bank 4 miles downstream from intake and 12 miles north of Kernville.

Records available.--March 1921 to September 1951.

Gage.--Water-stage recorder and rectangular concrete flume. Datum of gage is 3,580.06 ft 

STbove mean sea level (levels by Southern California Edison Co.). Prior to Feb. 22, 

1922, reference point at site 500 ft downstream from intake at different datum. Feb. 

22, 1922, to May 15, 1928, recorder 1 mile downstream from intake at different datum.

Average discharge.--30 years, 365 cfs.

Extremes.--Maximum daily discharge during year, 622 cfs May 28, 29; minimum daily, 27 cfs 

 Nov. 20.

1921-51: Maximum daily discharge, 689 cfs May 28, 1938; no flow at times.

Remarks. Records excellent. Canal diverts from left bank of Kern River in sec. 12, T. 23 

5. , K. 32 E. Water is used for power and returned to river 8 miles below station.

Cooperation. Water-stage recorder graph and 13 discharge measurements, furnished by

Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Discharge, In cubic feet per second, water year October 1950 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.

142

144

144

141

140

140

*139

136

136

135

133

T33

133

133

135

134

134

134

135

134

134

134

136

147

152

154

327

2SU

209

200

231

4,809

155

9,540

Nov.

224

208

*202

203

206

203

196

192

188

186

181

179

188

209

194

188

218

303

165

27

325

352

352

369

558

606

608

609 'S0"9~

609

8,857

295

17,570

Dec.

*608

603

609

602

609

609

612

614

614

614

614

614

614

615

614

614

615

615

"515 616

608

594

574

561

544

530

507

489

488

479

461

18,075

583

35,850

Jan.

395

423

446

438

428

*414

397

396

378

395

390

373

"4756" 368

415

405

387

411

483

m

418

426

444

432

429

427

426

426

426

408

374

12,798

413

25,380

Feb.

397

*388

390

399

424

439

440

454

448

455

465

488 4"50"

443

428

414

403

399

380

389

382

373

338

*3ST

359

367

357

343

_

_

-

11,366

406

22,540

Mar.

384

349

*335

375

389

390

383

378

364

362

358

369

399

411

423

426

434

4l>9

433

*446

463

461

460

469

487

498

508

520

536

32T

489

13,252

427

26,280

Apr.

481

480

469

163" 457

*464

468

464

504

575

600

608

612

612

612

611

613

*613

612

611

612

610

608

608

608

614 ST4"

609

608

610

-

17,030

568

33,780

May

610

613

614

*616

615

616

616

618

617

618

616

611

611

610

610

611

610

609

608

W5

609

609

610

609

608

610

616

£22" 622

621

617

19,010

613

37,710

June

615

*616 615"

613

612

611

610

610

609

609

609

609

*609

609

609

611

612

612

612

611

611

611

610

610

610

611

611

SIO" 591

616

-

18,314

610

36,330

July

616

STT

613

612

612

*612

609

597

590

595

598

598

568

539

520

524

581

616

616

616

565

519

483

458

433

403

380

367

371

362

545

16,522

533

32,770

Aug.

324

STTT

306

298

*287

272

254

243

232

221

216

211

205

199

*196

194

202

202

198

193

193

192

188

187

185

174

168

165

163

162

T6?

6,699

216

13,290

Sept.

155" 156

152

146

144

*142

140

138

136

134

133

132

131

130

130

129

129

129

131

132

134

133

132

131

129

129

TSB" 128

129

130

-

4,052

135

8,040

Calendar year 1950: Max 620 Mln 27 Mean 397 Ac-ft 287,400

Water year 1950-51: Max 622 Mln 27 Mean 413 Ac-ft 299,100

* Discharge measurement made on this day. 

256498 O - 53 - 14
KERN RIVER BASIN

Kern River near Kernville, Calif.

Location. Lat 35°56'00", long. 118°29'10", in NEj; sec. 14, T. 23 S., R. 32 E. , on left 

 bank 3 miles upstream from Salmon Creek and 15 miles north of Kernville.

Drainage area. 845 sq mi.

Records available. January 1912 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,550 ft (from topographic map).

Average discharge. 39 years, 701 cfs, combined flow of Kern River near Kernville and Kern 

Kiver wo. '6 uanal; median of yearly mean discharges, 620 cfs.

Aug. 10.

1912-51: Maximum discharge, that of Nov. 19, 1950; no flow at times during period 

July 31, 1924, to Feb. 7, 1925, and part of Aug. 10, 1951.

Extremes do not include flow in Kern River No. 3 Canal.

Remarks . Records good except those for period of no gage-height record, which are fair.

 &ern River No. 3 Canal (see p. 197 ) diverts 1 mile above station.

Cooperation. Water-stage recorder graph and 14 discharge measurements furnished by

 soutnern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Nov. 19 Nov. 20 to Sept. 30

2.6 1.7

2.7 3.1

2.9 7.2

3.1 13

3.4 26

3.9 

4.5 

5.0 

5.5 

6.0

123

213

343

514

7.0

8.0

9.0

12.0

15.0

995

1,680

2,670

7,250

14,300

2.7

2.8

2.9

3.0 

3.3

2.1

4.5

15

3.8 

4.4 

4.9 

5.4 

6.0

104

193

345

590

7.0 1,100

8.0 1,750

9.0 2,710

10.0 4,010

Discharge, In cubic feet per second, water year October 1950 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.

2.8

2.8

2.8

2.8 

2.8

2.8

*2.8

2.7

4.4

TTS

3.

3.

3.

2.

2.

2.

2.

2.

2. 

2.

2.

2.

Z.

2.

2.

2.8

4.3

1.9

TT5

1.9

2.0

84.7

2.73

168

Nov..

1.9

T75

*1.9

1.9 

1.9

1.9

1.3

1.3

1.9

1.9

1.9

1.9

2.3

2.5

2.4

2.0

2.0

1,820

* 32,700 

5,940

1,890

1,330

987

769

444

263

176

117

81

110

-

23,661.0

789

46,930

Dec.

144

44

905

2,460 

1,090

779

784

720

532

412

338

284

218

286

288

168

125

93

75 

46

24

12

8.3

7.6

7.0

7.0

7.0

10

16

16

15

9,920.9

320

19,680

Jan.

15

16

TS

15 

4.0

*1.7

T75

3.0

3.0

3.5

3.7

3.5

3.0.

3.5

3.2

3.2

3.2

3.7

6.0 

3.5

3.5

3.5

3.2

3.0

2.8

3.0

3.0

3.0

3.0

2.8

2.5

148.9

4.80

295

Feb.

2.5

2.5

*2.1

-2T1 

2.1

2.1

2.1

2.1

2.1

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3 

2.5

2.3

2.3.

2.1

*2.5

2.3

2.5

2.8 275"

_

_

-

64.5

2.30

128

Mar.

2.8 27T

*2.3

2.5

2.5

2.1

1.9

1.9

1.7

TTT

1.9

2.1

2.1

1.9

2.1

1.9

1.9

1.9

2.1 

*2.1

2.1

2.1

1.9

1.9

2.1

2,1

1.7

2.3

2.3

2.1

1.9

64.0

2.06

127

Apr.

1.9

1.9

1.9

 271 1.7 

*2.1

1.9

1.9

2.3

2.8

57

140

213

287

514

280

250

206

203

182

155

178

241

262

259

213

166

251

287

253

-

4,417.5

147

8,760

May

221

187

224

*189 

196

146

114

112 TT9-

173

300

324

268

250

230

208

271

440

676 

895

,000

,050

*992

,080

,310

,590

,750

1,640

,470

,290

;120

19,835

640

39,340

June

915

*760

720

710 

710

730

755

770

800

770

755

795

*860

935

1,030

1,250

1,220

1,050

*1,000 

1,010

935

815

705

635

540

545

*518

480

420

364

23,482

783

46,580

July

326" 364

297

248

178

*118

81

53

30

15

12

12

12

11

10

6

4

4

54 

74

65

21

7

2

2

2

1

T

1

1

1

2,013

64.9

3,990

Aug.

1

1

*1

.6 

.5

.4

.4

.3

.2

.1

.7

.7

.6

.6

.6

.6

.7

.6

.6 

1.9

1.3

.9

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.2

24.9

0.80

49

Sept.

1.2

1.0

1.0

1.0 

1.0

*.9

.9

.6

172

1.0

1.0

.9

*1.0

.9

1.0

1.0

1.0

.9

1.0 

1.0

1.0

1.0

.9

.9

.9

.9

1.0

1.9

175

1.9

31.8

1.06

63

Calendar year 1950: Max 12,700 Mln 0.4 Mean 284 Ac-ft 205,500

Water year 1950-51 : Max 12,700 Mln 0.1 Mean 229 Ac-ft 166,100

* Discharge measurement made on this day.

Note.--No gage-height record June 28 to Aug. 3; discharge estimated on basis of records for Kern 

River No. 3 Canal near Kernville, Kern River Ho. 1 conduit near Democrat Springs, and Kern River near 

Democrat Springs.
KERN RIVER BASIN 199

Combined discharge, In cubic feet per second, of Kern River and Kern River No. 3 Canal near 

Kernvllle, Calif., water year October 1950 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.

145

147

147

144 

143

143

142

139

140

139

136

136 

136

135

T37

136 

136

136

138

136

136

136

139

150

155

157

331 

211

202

233

4,893

158

9,710

Nov.

226

210

204

205 

208

205

198

194

190

188

183

181 T50"

212

196

190 

220

2,120

12,900

2 ' 970

2,220

1,680

1,340

1,140

1,000

869

784 

726 

690

720

-

32,559

1,085

64,580

Dec.

752

647

1,510

3,060 

1,700

1,390

1,400

1,330

1,150

1,030

952

898 

832

901

902

782 

740

708

691

661

632

606

582

569

551

537

514 

499 

504

495

476

28,001

903

55,540

Jan.

410

439

462

453 

432

416

399

399

381

398

394

376 

371

4TO

418

408 

390

415

489 4~I$

422

430

447

435

432

430

429 

429 

429

411

376

12,948

418

25,680

Feb.

400

390

392

401 

426

441

442

456

450

457

467

490 

432

445

430

416 

405

401

382

392

384

375

340

356

361

370

360 

346

-

-

11,427

408

22,670

Mar.

387

351

337 350" 

392

392

385

380

366

364

360

371 

401

413

425

428 

436

431

435

448

465

463

462

471

489

500

510 

522 

538

523

491

13,316

430

26,410

Apr.

483

482

471

459 

4TJ5"

466

470

466

506

578

657

748 

825

899

926

891 

863

819

815

793

767

788

849

870

867

827

780 

860 

895

863

-

21,448

715

42,540

May

831

800

838

805 

811

762

730

730

736

791

916

935 

879

860

840

819 

881

1,050

1,280

1,500

1,610

1,660

1,600

1,690

1,920

2,200

2,570 

2,260 

2,090

1,910

1,440

38,544

1,243

76,450

June

1,530

1,380

1,340

1,320 

1,320

1,340

1,360

1,380

1,410

1,380

1,360

1,400 

1,470

1,540

1,640

1,840 

1,830

1,660

1,610

1,620

1,550

1,430

1,320

1,240

1,150

1,160

1,130 

1,070 

1,030

980

41,790

1,393

82,890

July

980

910

860 

790

730

690

650

620

610

610

600 

580

550

530

530 

585

620

670

690

630

540

490

460

435

405

381 

368 

372

363

346

18,535

598

36,760

Aug.

325 305"

307

299 

288

272

254

243

232

221

217

212 

206

200

197

195 

203

203

199

195

194

193

189

188

186

175

169 

166 

164

163

163

6,726

217

13,340

Sept.

157

TSF

153

147 

145

143

141

139

137

135

134

133 

132

131

131

130 

130

130

132

133

135

134

133

132

130

130

129 

131

132-

4,085

136

8,100

Calendar year 1950: Max 12,900 Mln 132 Mean 681 Ac-ft 493,200

Water year 1950-51: Max 12,900 Mln 129 Mean 642 Ac-ft 464,700
200 KERN RIVER BASIN

Borel Canal at Tillie Creek, Calif.

Location (revised) .--Lat 35°42', long. 118°27' , in SEtj sec. 5, T. 26 S., R. 33 E. , on

 right bank at point where canal crosses Tillie Creek, 1.4 miles southwest of intake at 

Kernville.

Records available.--January 1910 to September 1914, October 1925 to September 1951. 

Gage.--Water-stage recorder. Altitude of gage is 2,570 ft (from topographic map). 

Average discharge.--26 years (1925-51), 355 cfs.

Extremes.--Maximum daily discharge during year, 607 cfs May 31; no flow Jan. 3 to Mar. 16,

 Mar. 19, 20, May 2-5.

1925-51: Maximum daily discharge, that of May 31, 1951; no flow at times.

Remarks.--Records good. Canal diverts from right bank of Kern River to supply Borel power

 plant of Southern California Edison Co., 10 miles below station, at which point water 

is returned to Kern River.

Cooperation.--Water-stage recorder graph and 14 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 195O 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.

139

142

142

140

139

138

136

*135

132

127

127

124

T2T

125

129

130

129

128

129

131

131

132

132

138

145

147

'2"6TF 286

215

206

230

4,676

151

9,270

Nov.

234

*219

209

208

210

208

200

194

190

182

178

177

TeT

215

208

191

224

356

483

485

493

494

494

494

505

544

569

576

577

*578

-

10,077

336

19,990

Dec.

580

580

576

572

576

576

576

577

581

580

581

581

581

581

581

581

581

581

581

581

583

585

585

586

55S

585

574

552

552

548

531

17,855

576

35,410

Jan.

595

o'

0~

0

0

0

0

0

O

0

O

0

0

o

0

0

0

0

0

o

0

0

o

0

o

0

0

o

0

o

394.1

12.7

782

Feb.

O

0

0

Mar.

00~

o

0

o

0

o

0

o

0

o

0

o

0

0

0

69

41

0

0

360

527

525

528

545

*562

*563

576

585

577

54:1

5,999

194

11,900

Apr.

528

529

520

508

*5TT

516

528

531

547

585

591

589

589

589

589

591

593

*594

595

594

594

594

594

595

594

595

594

594

595

597

-

17,163

572

34,040

May

323

O

U

0

0

195

595

595

594

595

597

595

597

595

595

597

599

600

598

601

605

604

*603

603

604

605

605

505

606

606

607

15,524

501

30,790

June

*606 135"

604

603

601

599

597

599

598

595

594

594

593

*592

593

591

591

589

*591

591

591

592

585

583

586

583

579

577

576

575

-

17,751

592

35,210

July

570

570

569

568

565

563

564

*565

564

564

564

564

561

546

528

527

556

568

574

582

581

528

491

462

436

406

377

355

360

349

542

15,919

514

31,570

Aug.

323

3*55

308

*288

275

262

252

241

225

211

206

201

197

*185

181

*181

189

193

189

186

186

189

185

182

182

171

165

160

157 159-

158

6,491

209

12,870

Sept.

157

T55

152

147

142

139

*137

134

134

131

130

132

*130

130

128

126

124

T2T

125

130

128

128

127

128

128

130

129

129

128

129

-

3,991

133

7,920

Calendar year 195O: Max 600 Mln 124 Mean 406 Ac-ft 294,300

Water year 1950-51: Max 607 Mln 0 Mean 317 Ac-ft 229,800

Discharge measurement made on this day.
KERN RIVER BASIN 201

South Fork Rprn 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.--531 sq mi.

Records available.--September 1911 to August 1914, January 1919 to September 1942, August 1947 to September 1951.

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. 25 years (1911-13, 1919-25, 1929-42, 1947-51), 101 cfs.

.Extremes.--Maximum discharge during year, 2,180 cfs Nov. 19 (gage height, 5.88 ft); minimum, 1.4 cfs Aug. 11, 14.

1911-14, 1919-42, 1947-51: Maximum discharge, 3,450cfsMar. 2, 1938 (gage height, 

6.69 ft), from rating curve extended above 1,900 cfs; maximum gage height, 7.1 ft Jan. 

25, 1914, former site; no flow for several days in July, August 1929, and September 

1934.

Remarks. Records excellent except those for periods of no gage-height record, which are

 fair. Lowell and Thomas irrigation ditches divert above station; combined capacity, 

about 5 cfs.

Revisions (water years). W 1151: 1948(M).

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.2

1.3

1.4

1.5

1.6

1.2

2.7

5.3

9.2

14

2.1 

2.4 

2.7

3.0

96

153

230

3.5 412

4.0 670

5.0 1,400

Discharge, In cubic feet per second, water year October 1950 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

26

29

30

31

Total

Mean

Ac- ft

Oct.

6.3

6.7

6.7

7.1

7.1

7.1

7.5

8.7

8.7

9.7

10

11

11

11

12

12

12

13

13

13

13

13

13

14

15

16

19

25

34

27

26

408.6

13.2

810

Nov.

26

a20

a!5

a!6

al6

a2o

a25

a25

a22

a20

a25

a28

*a27

26

24

22

22

42

1,380

515

255

182

142

116

101

92

86

77

72

72

-

3,511

117

6,960

Dec.

82

74

80

360 269"

180

162

160

149

133

121

114

109

101

115

104

92

87

82

82

77

71

68

67

63

62

60

56

59

61

59

3,359

108

6,660

Jan.

44

39

47

51

*55

50

40

40

42

44

42

37

35

36

44

44

38

43

48

38

39

48

51

50

48

50

52

56

55

56

50

1,412

45.5

2,800

Feb.

50

47

50

54

55

67

86

98

96

86

90

86

70

67

63

65

60

56

50

50

52

a48

a44

*40

3_5

39

46

38

_

-

1,688

60.3

3,350

Mar.

41

37

36

40

48

41

48

55

59

57

54

52

56

67

70

68

67

67

62

*62

67

65

61

61

61

61

62

62

62

62

57

1,768

57.0

3,510

Apr.

53

53

53

53

54

59

63

65

62

63

63

65

65

61

63

61

60

61

63

71

77

68

62

59

59

60

66

66

77

77

1,882

62.7

3,730

May

86

88

92

90

81

77

70

65

62

59

57

55

53

59

65

73

66

61

60

80

77

a72

a68

a63

a59

a55

a50

a46

a41

37

37

2,004

64.6

3,970

June

36

36

36

33

31

31

32

30

29

27

26

26

26

*24

24

24

22

20

23

21

19

19

19

19

18

16

14

12

11

10

-

714

23.8

1,420

July

9.7

7.1

4.6

4.3

4.0

3.8

3.5

3.5

3.5

3.5

3.5

3.5

3.3

3.3

3.1

3.1

2.9

3.1

4.3

M

12

10

7.3

3.8

3.5

3.5

3.5

3.8

4.0

3.5

3.1

153.6

4.95

305

Aug.

2.9

2T6

2.6

2.7

2.7

2.6

2.4

2.2

1.8

1.7

1.4

1.5

1.5

*1.5

1.5

1.7

1.8

1.7

1.7

1.8

1.7

2.0

2.2

2.4

2.6

2.9

2.9

2.2

2.0

1.8

1.7

64.7

2.09

128

Sept.

LJ.

1.8

2.0

2.1

2.1

2.2

2.2

1.8

2.0

2.0

2.1

*2.1

2.2

2.4

2.6

2.9

3.1

3.3

2.7

2.0

2.0

2.1

2.1

2.2

2.2

2.2

2.2

2.4

3.1

3.8

-

69.6

2.32

138

Calendar year 1950: Max 1,380 Min 2.7 Mean 72.5 Ac-ft 52,470

Water year 195O-51: Max 1,380 Min 1.4 Mean 46.7 Ac-ft 33,780

Peak discharge (base. ISO cfs).--Nov. 19 (11 a.m.) 2,180 cfs (5.88 ft); Dec. 4 (12 m.) 449 cfs 

(3.58 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of ranges In stage, records for Kern River 

at Isabella dam site, or interpolated.
^ u ^ KERN RIVER BASIN

South Pork Kern River at Isabella, Calif.

Location. Lat 35°40', long. 118°28', in NWi sec. 20, T. 26 S., R. 33 E., on right bank 

at Isabella, 0.2 mile upstream from mouth.

Drainage area. 985 sq mi.

Records available.--October 1910 to September 1913, January 1929 to September 1951.

Gage. Water-stage recorder. Datum of gage is 2,484.3 ft above mean sea level (riverprofile survey). October 1910 to September 1913, staff gage on bridge pier 75 ft downstream at different datum.

Average discharge. 22 years (1929-51), 98.6 cfs.

Extremes. Maximum discharge during year, 1,200 cfs Nov. 19 estimated on basis of records for 

 nearby stations; maximum gage height, 12.4 ft Nov. 19, from floodmark in gage well (backwater from Kern River); minimum discharge, 3.0 cfs Sept. 1.

1929-51: Maximum discharge, 4,100 cfs Feb. 7, 1937, from rating curve extended above 

1,600 cfs, verified by velocity-area study; maximum gage height, that of Nov. 19, 1950; 

minimum discharge, 0.3 cfs July 26, 1931.

Remarks.--Records fair except those for periods of backwater or no gage-height record,

which are poor. Many diversions above station for irrigation; considerable return flow.

Discharge, in cubic feet per second, water year October 1950 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.

9.4

9.6

9.8

9.2

6.4

6.2

5.6

5.4

5.8

6.8

5.8

6.4

8.3

6.4

6.6

7.8

6.0

7.0

6.2

6.6

9.4

7.2

10

11

11

12

T?

12

12

12

12

261.9

8.45

519

Nov.

12

9.6

8.1

8^

8.7

12

13

13

11

9.8

12

13

*13

14

13

13

13

CIS

 a200

-

2,612.1

87.1

5,180

Dec.

. a!60

g!71

a!60

al50

g!44

g!29

g!29

g!21

gllO gioo

g93

g74

g66

g58

54

50

44

42

43

46

41

36

36

35

3,212

104

6,370

Jan.

34

34

32

*31

28

25

24

22

22

22

24

27

26

28

26

21

1919-

20

20

22

22

20

20

22

24

26

31

34

32

31

788

25.4

1,560

Feb.

31

28

26

25

24

24

24

25

26

26

26

25

24

24

24

24

21

20

19

19

19

18

*18

18

20

19

20

20

_

-

637

22.8

1,260

Mar.

20

20

20

20

21

20

20

20

20

20

19

19

20

18

17

16

15

15

*15

15

15

13

13

13

14

13

12

T?

13

14

14

516

16.6

1,020

Apr.

14

14

14

13

13

13

14

14

14

11

11

11

14

13

12

12

11

13

14

13

14

14

14

*14

15

15

14

15

16

14

403

13.4

799

May

13

12

12

12

14

15

16

16

16

16

16

14

16

16

14

15

16

14

15

!§.

14

13

14

14

14

14

15

12

10

11

12

437

14.1

867

June

14

14

11

8.1

7.6

8.3

8.9

8.9

9.8

12

11

11

10

*9.2

7.4

7.8

7.4

7.2

6.8

7.0

8.7

9.6

10

11

9.4

7.8

7.2

6.2

678

7.8

271.9

9.06

539

July

6.4

6.6

6.4

7.0

6.0

6.4

6.4

6.2

6.2

6.0

5.2

5.1

5.1

5.4

5.1

5.2

6.2

5.4

4.8

4.8

4.9

5.1

5.4

5.4

6.2

6.4

6.0

4.8

5.6

5.8

6.6

178.1

5.75

353

Aug.

6.0

4.8

4.4

4.4

4.3

4.9

4.9

4.6

5.2

5.6

5.6

5.2

*6.4

7.2

9.6

9.6

7.4

6.4

7.0

6.6

4.9

5.4

8.5

7.8

7.0

6.8

5.4

4.1

5.5

3TF

4.1

181.2

5.85

359

Sept.

3.8

6.0

4.9

5.2

5.8

5.1

6.0

7.2

7.4

5.8

5.4

7.0

*6.8

5.8

5.1

4.8

5.2

6.6

6.4

6.2

7.0

V.2

8.3

9.2

10

11

9.2

6.2

5.8

5.4

-

195.8

6.53

388

Calendar year 1950 : Max - Mln 5.4 Mean 41.6 Ac-ft 30,120

Water year 1950-51 : Max - Min 3.5 Mean 26.6 Ac-ft 19,210

Peak discharge (base. 13O cfa). Nov. 19 (time unknown) 1.2OO cfs (estimated).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby streams, 

c Backwater from Kern River; discharge partly estimated, 

g Computed from cnce- or twice-daily staff-gage readings.
KERN RIVER BASIN 

Kern River below Isabella dam site, Calif.

203

Location Lat 35°39', long. 118°29', in sec. 19, T. 26 S., R. 33 E., on right bank immealately downstream from dam site, 1.2 miles southwest of Isabella and 1.3 miles downstream from South Fork.

Drainage area. 2,080 sq mi, approximately.

Records available. April 1945 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,400 ft (from topographic map).

Average discharge. 6 years (1945-51), 282 cfs.

Extremes. texlmum discharge during year, 39,000 cfs Nov. 19 (gage height, 23.4 ft), from 

rating curve extended above 1,100 cfs on basis of slope-area determination of peak 

flow; minimum, 3.3 cfs July 17, but may have been less in August and September.

1945-51: Maximum discharge, that of Nov. 19, 1950; minimum, that of July 17, 1951,

Remarks.--Records fair. Borel Canal (see p. 200 ) diverts 5 miles above the station; many 

diversions above station for irrigation.

Rating tables, water year 1950-51, except periods of Indefinite stage-discharge relation 

(gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Dec. 18 Dec. 18 to Sept. 30

3.5 

3.8 

4.1 

4.4 

4.7

7.0

22

5.0 

5.5 

6.0 

7.0 

8.0

173

316

510

990

1,540 19.0

2,390

5,000

8,300

15,100

23,800

3.5 2.8

3.6 5.5

3.8 14

4.1 33

4.5 65

5.0 113

6.0 244

7.0 464

8.0 840

9.0 1,460

10.0 2,450

Discharge, In cubic feet per second, water year October 1950 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.

15

16

16

16 

12

12

11

IT

12

13

12

12

15

12

12

15

12 

14

12 

13

15

13

16

18

18

18

18

19

TS

18

18

452

14.6

897

Nov.

18

16

T5~ 13

13

17

18

18

17

14

17

18

*19

19

18

18

18 

1,150

*21,000 

5,636

3,250

1,890

1,320

1,000

854

614

433

319

239

197

-

38,382

1,279

76,130

Dec.

409

208

450

5,660 

2,060

1,400

1,240

1,190

984

830

707

604

501

453

658

421

316 

244

195 

168

135

111

89

67

54

46

36

30

27

77

27

19,347

624

38,370

Jan.

70

34T

363

358 

354

340

322

322

310

326

368

390

387

423

440

429

412 

420

~£57 603 

464

464

423

437

440

443

443

431

434

440

494

12,394

400

24,580

Feb.

464

491

504

4W

458

423

429

404

415

404

397

370

35T

420

440

458

473 

461

429 

429

434

423

382

387

*404

410

410

392

_

_

-

11,997

428

23,800

Mar.

434

407

380

423 

455

464

458

446

431

423

418

426

464

488

497

500

455 

447

500 

510

*196

35

30

27

27

25

24

30" 22

32

25

9,499

306

18,840

Apr.

24

24

24

21 

21

21

22

21

19

3TJ

59

145

239

304

354

328

304 

282

265 

274

222

225

264

310

294

304

238

244

397

m5,619

187

11,150

May

703

1,030

1,100

1,090 

1,070

732

220

206

195

m

304

377

322

302

292

269

291 

407

688 

850

1,000

1,100

1,100

1,150

1,400

1,700

1,900

1,800

1,600

1,500

1,290

26,202

845

51,970

June

1,030

786

716

711 

699

707

733

737

759

759

711

759

818

*900

1,030

1,280

1,520 

1,136

1,010 

1,030

956

826

711

621

526

532

510

479

431

384

-

23,601

787

46,810

July

368

3TS

302

278 

216

156

116

78

52

50

53

42

31

11

7.0

5.9

7.7 

50

90 

120

60

20

6

4

5

5

8

12

11

12

9

2,530.6

81.6

5,020

Aug.

(*)

10

310

10

615

Sept.

(*)

7

-

210

7

417

Calendar year 1950: Max 21,000 Mln 9.7 Mean 401 Ac-ft 290,400

Water year 1950-51: Max 21,000 Mln 4 Mean 412 Ac-ft 298,600

* Discharge measurement made on this day.

Note. Stage-discharge relation Indefinite May 20-30, July 19 to Sept. 30; discharge computed on 

trend of recorder graph, 2 discharge measurements, and records for stations upstream and downstream.
204 KERN RIVER BASIN

Kern River No. 1 conduit near Democrat Springs, Calif.

Location.--Lat 35°29'50", long. 118°41 I 30", in NE^NE^ sec. 13, T. 28 S., R. 30 E., on 

right bank 25 ft upstream from downstream end of aqueduct over Cow Creek, 1.9 miles 

downstream from intake, and 2.5 miles southwest of Democrat Springs.

Records available.--June 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,800 ft (from topographic map).

Extremes. 1950-51: Maximum daily discharge, 416 cfs July 4, 5, 1950; no flow Sept. 24-26,

Remarks.--Records good. Canal diverts from left bank of Kern River to supply Kern River 

No. 1 power plant of Southern California Edison Co., 7 miles below station, at which 

point water is returned to Kern River.

Cooperation.--Water-stage recorder graph and 20 discharge measurements, furnished by 

Southern California Edison Co., in connection with a Federal Power Commission pro project.

Discharge, in cubic feet per second, 1950-51 

1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

_

_

-

-

-

_

-

-

_

-

.

-

-

-

-

_

413

413

410

406

406

404

403

402

405

405

404

*404

407

411

-

_

-

-

July

411

412

415

416 4TB415

415

415

414

413

412

412

413

412

410

*403

396

380

*362

358

*343

326

307

303

287

294

333

323

289

276

261

11,442

369

22,690

Aug.

247

264

268

24?

228

*214

204

189

182

*174

168

163

156

153

150

146

136

133

126

127

127

125

*124

122

116

113

111

108

104

105

101

4,929

159

9,780

Sept.

*100

96

57

103

108

117

138

171

T79- 199

*165

151

139

132

124

124

129

132

138

132

129

123

116

113

113

111

110

106

101

96

-

3,792

126

7,520

Calendar year : Max Kin Mean Ac-ft

Water year : Max Mln Mean Ac-ft

Discharge measurement made on this
KERN RIVER BASIN 205

Discharge, in cubic feet per second, of Kern River No. 1 conduit near Democrat Spring

1950-51--Continued

Calif.,

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

; )

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

144

153

155

154

151

*146

146

146

142

138

139

136

135

137

138

140

139

137

140

141

142

146

145

148

160

164

182

330

217

230

224

4,975

160

9,870

Nov.

258

244

229

221

223

*224

222

217

211

201

195

196

199

226

235

213

221

271

157

T7T

363

370

380

382

380

375

384

391

391

592

-

8,142

271

16,150

Dec.

391

39T

391

375

377

389

390

*388

377

377

376

375

375

375

375

378

379

379

380

380

380

379

379

378

378

378

378

378

378

378

378

11,780

380

23,370

Jan.

378

378

378

378

378

377

376

375

375

374

374

373

372 372"

372

377

378" 380

377

376

377

379

377

376

375

375

375

374

374

375

377

11,652

376

23,110

Feb.

377

375

375

374

*372

372

370" 370

370

371

374

376

377

378

378

379

380

379

388 3~5B~

379

379

379

378

378

379

378

379

_

_

-

10,552

377

20,930

Mar.

380

380

380

*380

380

'3W 379

380

380

382

383

383

384

385

384

383

383

384

382

383

386

388

389

390

3915

388

386

387

387

387

387

11,900

384

23,600

Apr.

387

387

387

387

387

387

387

*387

387

386

385 356"

388

3OT

388

388

388

388

387

388

388

387

386

386

385

386

387

386

385

385

11,604

387

23,020

May

385

385

385

384

382

*382

382

382

385

385

385

385

385

385

385

384

384

385

383

382

273

23

33?

389

395

396

353

393

392

393

392

11,468

370

22,750

June

391

391

390

390

390

*388

387

387

391

392

388

388

389

388

*388

388

387

386

3H7

386

387

391

394

396

396

397

397

398

39T31

398

11,724

391

23,250

July

39"5' 398

398

398

398

396

396

396

396

396

*395

395

395

395

393

393

392

390

390

388

390

390

387

382

372

353

330

310

296

3CT

298

11,705

378

23,220

Aug.

282 '2S2'

254

350

237

2Z6

*213

201

190

176

168

164

158

152

141

140

142

152

146

145

140

140

138

136

135

130

120

*113

108

107

106

5,172

167

10,260

Sept.

107 TOT

104

100

95

93

92

90

*90

88

*85

81

82

82

82

80

79

78

77

80

78

75

63

0

ff

0

68

86

79

79

2,298

76.6

4,560

Calendar year : Max - Min - Mean - Ac-ft -

Water year 1950-51: Max 398 Min o Mean 310 Ac-ft 224,100

Discharge measurement made on this day.
206 KERN RIVER BASIN

Kern River near Democrat Springs, Calif.

Location. La t 35°31'20", long. 118°40'40", in NEvSEir sec. 6, T. 28 S. , R. 31 E. , on left 

DanK 2.1 miles upstream from Cow Creek and 1.0 mile southwest of Democrat Springs.

Drainage area. --2, 264 sq mi.

Records available .--July 1950 to September 1951.

Gage . --Water-stage recorder. Altitude of gage is 1,850 ft (from topographic map).

Extremes . 1950-51 : Maximum discharge, 40,000 cfs Nov. 19 (gage height, 30.7 ft), from 

raring curve extended above 2,100 cfs on basis of computation of peak flow over dam 

(basic data for computation furnished by Southern California Edison Co.); minimum, 1.9 

cfs Oct. 12-14.

Remarks . Records good except those for period of no gage-height record, which are fair. 

Kern River No. 1 conduit near Democrat Springs diverts 0.5 mile upstream from station 

(see p. 204); many diversions above station for irrigation.

Cooperation. --Water-stage recorder graph and 40 discharge measurements, furnished by

soutnern California Edison Co., in connection with a Federal Power Commission project.

Rating tables, July 26, 1950, to Sept. 30, 1951 (gage height, In feet,

and discharge, in cubic feet per second) 

(Shift ing- control method used June 23 to July 5)

5.2

5.3

5.4 

5.6 

5.9

July 26 to Nov. 19, 1950 20, 1950, to Sept. 3O, 1951

1.8 

2.8 

4.2 

8.4

6.2 

6.4 

7.0 

8.0 

10.0

233

609

1,560

13.0

18.0

23.0

3,800

9,300

18,900

4.1 

4.9 

5.5 

6.0 

7.0

35

101

182

270

465

8.0 725

10.0 1,640

13.0 3,800

16.0 6,800

Discharge, In cubic feet per second, 1950-51

1950

Day

1

2

3

4 

5

6

7

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

Ac-f

Oct. Nov.

Calendar year : 

Water year :

Dec.

Max 

Max

Jan.

-

Feb. Mar. Apr. May June July

_

_

_

_

-

_

_

_

_

-

-

-

.

-

-

_

-

_

_

-

-

-

51

*51

51

51

51

51

_

-

Aug.

51

5T

51

51

51

*51

51

51

49

*49

49 

49 

49 

49

49

49

49

49

49

49

49

*49

*49

49

49

48

TS

48

48

48

48

1,529 

49.3

3,030

Sept.

*48

15

48

48

49

49

49

51

BT

51

*51 

51 

51 

51

51

51

51

51

51

51

49

49

49

49

49

49

49

49

*49

49

-

1,492 

49.7

2,960

Min Mean Ac -ft 

Min Mean Ao-ft

* Discharge measurement made on this day.
KERN RIVER BASIN 207

Discharge, in cubic feet per second, of Kern River near Democrat Springs, Calif., 1950-51 Continued

1950-51

Day

1

£

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

21

ZZ

£3

£4

£5

26

£7

£8

£9

30

31

Total

Mean

Ac- ft

Oct.

7.0

£.£

£.1

£.1

2.1

*£.!

£.1

£.1

2.0

£.0

£.0

TT9- 1.9

1.9

£.0

£.0

2.0

2.0

£.0

£.0

£.0

£.0

£.0

£.0

£.0

£.0

£.0

9.7

TTZ

£.1

£.1

75.6

£.44

150

Nov.

2.1

m

£.1

£.1

£.1

*£.!

£.1

£.1

£.1

£.£

£.3

£.3

£.4

£.5

£.5

£.5

£.5

2.6

18,400

6,440

3,710

2,300

1,570

1,120

909

750

6£6

538

485

446

-

334.7

1,244

74,050

Dec.

536

472

413

5,030

2,510

1,700

1,400

*1,380

1,140

94£

8£3

752

671

61£

770

6£6

546

50£

465

445

407

381

356

3£9

310

£97

£80

£52

££9

£32

£16

25,0£4

807

49,630

Jan.

179

119

166

174

163

141

*116

105

97

91

110

119

83SB136

1£5

92

99

250

TS9

147

138

180

176

171

164

163

166

166

162

1£0

4,405

142

8,740

Feb.

106

111

98

*101

113

164

16£

187

187

182

£04

££5

£29

TB5

154

133

113

103

85

67

85

78

a50

a50

a60

a60

a65

a45r~*

-

-

3,386

1£1

6,7£0

Mar.

a70

a75

a40

*a^0

98

119

113

100

87

75

65

65

90

1£2

1£7

137

14-8

137

136

144

154

18£

168

164

176

197

£04

£16

2£5

£36 '5CS

4,13£

133

8, £00

Apr.

169

168

164

151

148

148

158

*179

177

£13

£68

3£1

4£3

489

543

538

509

496

47£

485

445

431

453

507

500

516

461

445

61£

555

11,144

371

££,100

May

545

505

50 £

509

494

*455

443

431

4£5 ?29~

485

591

555

5£1

511

491

483

56£

774

1,060

1,4£0

*1,810

1,410

*1,380

1,6£0

£,040

2,350

2,340

£,100

1,840

1,580

30,661

989

60,8£0

June

1,340

1,060

950

*94£

*918

930

958

974

990

1,0£0

954

98£

1,040

1,150

*1,£80

1,460

1,600

1,440

1,£80

*1,300

1,280

1,090

986

90£

784

*788

770

719

680

6£0

-

31,187

1,040

61,860

July

588 -555

5£8

50£

435

365

*304

£66

£38

££3

£23

£21

£06

17£

141

1£7

143

201

£5£

3£1

£57

169

105

76

6£

55

53

53

5£

K?

5£

7,0£6

£27

13,940

Aug.

5£ *52

51

51

51

51

51

51

51

50

50

50

50

50

50

49

49

49

49

_48

48

48

48

48

48

48

48

48

48

48

48

1,533

49.5

3,040

Sept.

47

IT

47

47

47

47

47

47

*48

48

*48

48

48

48

48

48

48

48

48

48

48

48

54

13£

T3?

*130

68

48

48

48

1,708

56.9

3,390

Calendar year 1950 : Max - Mln - Mean - Ao-ft -

Water iter year year 1950-51: isso-bj.: Max max 18,400 is,4OO Mln win 1.9 1.9 Mean Bean 43£ 43£ Ao-ft Ac-rt 31£,600 312,600

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Kern River No. 1 conduit near

imocrat Springs, Kern River No. 3 Canal near Kernville, and Kern River near Kernville.
208 KERN RIVER BASIN

Kern River near Bakersfield, Calif.

Location. Lat 35°25'54", long. 118°56'43", in SW£ sec. 2, T. 29 S., R. 28 E., on left bank 

at; mouth of lower canyon, 5 miles northeast of Bakersf ield.

Drainage area.--2,420 sq mi, approximately.

Records available.--October 1893 to December 1950 (discontinued).

Gage.--Water-stage recorder and wooden control. Altitude of gage is 470 ft (from topographic map).

Average discharge.--55 years (1893-1906, 1908-50), 950 cfs.

Extremes. Maximum discharge during period', 36,000 cfs Nov. 19 (gage height, 14.2 ft); 

minimum, data not available.

1896-50: Maximum discharge, that of Nov. 19, 1950; minimum, 46 cfs Sept. 20, 1948.

Remarks. Four power plants and many diversions for irrigation above station.

Cooperation.--Complete record, except runoff in. acre-feet and annual figures, furnished by 

K.ern uounty Land Co.

Revisions (water year).--W 861: Drainage area. W 1151: 1916.

Discharge, in cubic feet per second, October to December 1950

Day

1

2

3

4 

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19 

30

21

23

33

34

35

36

37

28

39

30

31

Total

Mean

Ac- ft

Oct.

157

155

147

153

151

151

150

150

145

146

143

143

138

135

133

131

138

147

139 

136

143

147

144

151

159

167

167

305

379

239

333

5,019

163

9,960"

Nov.

357

257

247

337 

329

339

332

231

330

209

207

202

2T35

333

342

336

321

354

14,700 

10,600

4,100

3,000

2,390

1,890

1,710

1,600

1,510

1,450

1,380

1,340

-

49,588

1,653

98,360

Dec.

1,165

1,166

1,139

4.439 

3,061

3,175

,831

,817

,683

,514

,430

,314

,234

,168

,183

,148

,060

993

931 

888

861

847

837

803

792

760

671

645

613

608

597

39,321

1,368

77,990

Jan. Feb. Mar. Apr. May June July Aug. Sept.

Calendar year 1950: Max 36,000 Mln 138 Mean 833 Ac-ft 603,800

Water year 1950 : Max - Mln - Mean - Ac-ft -

Note.--Figures of maximum and minimum discharge as shown for calendar year 1950 are instantaneou 

values.
TULARE LAKE BASIN 209

Tulare Lake in Kings County, Calif.

Location (revised). Lat 36°02'35", long. 119°38'35", near west quarter corner sec. 6, T. 

W h>., H. yy K., at south end of El Rico Ranch Bridge across Tule River and 6 miles 

southwest of Corcoran.

Records available.--March 1906 to September 1920 (incomplete), February 1937 to September iybi. 

Gage. Staff gage read at various times. Elevations interpolated for days of no gage-

 Freight record. Datum of gage is at mean sea level. 1937-50, water-stage recorder or 

staff gage at various sites. Prior to 1920, staff gages at various sites- and at different datums.

Extremes. Maximum elevation observed during year, 186.50 ft Dec. 10.

 1706-51: Maximum elevation, 196.8 ft June 27, 28, 1941; lake dry or practically so 

during parts of 1906, 1914, 1915-16, 1919, 1937, 1946, 1950-51; lake dry during entire 

years 1920-22, 1924-36, 1947-49.

Lake elevation of June 27, 28, 1941, was highest known since about 1890.

Remarks. 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 about 179 ft above 

mean sea level.

Cooperation.--Record furnished by Tulare Lake "basin Water Storage District.

Sage height, In feet, water year October 1950 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

Oct. Nov.

.

-

-

-

-

_

-

_

-

-

_

_

-

-

179.0

179.0

179.0

179.0

179.0

179.20

181.00

182.50

183.00

183.20

183.30

183.35

183.25

183.15

183.05

182.95

-

Dec.

182.85

182.75

182.65

182.80

183.45

184.30

185.15

185.90

186.30

186.50

185.83

185.78

185.73

185.68

185.63

185.58

185.53

185.48

185.43

185.38

185.33

185.28

185.23

185.18

185.13

185.08

185.03

184.98

184.93

184.88

184.83

Jan.

184.78

184.74

184.7

184.68

184.66

184.63

184.61

184.59

184.57

184.55

184.52

184.50

184.48

184.46

184.44

184.40

184.37

184.35

184.32

184.29

184.27

184.25

184.23

184.21

184.19

184.17

184.15

184.13

184.11

184.09

184.07

Feb.

184.05

184.03

184.01

183.98

183.96

183.94

183.92

183.90

183.85

183.85

183.85

183.85

183.85

183.85

183.85

183.85

183.80

183.75

183.70

183.65

183.60

183.55

183.50

183.45

183.37

183.30

183.20

183.10

_

_

-

Mar.

183.0

182.90

182.85

182.80

182.70

182.69

182.55

182.42

182.29

182.15

182.12

182.10

181.93

181.87

181.82

181.66

181.50

181.43

181.35

180.05

179.95

179.85

179.75

179.65

179.55

179.45

179.35

179.25

179.15

179.05

179.0

Apr. May June July Aug. Sept.
TULARE LAKE BASIN

White River near Ducor, Calif.

Location. Lat 35°49 I , long. 118°56', in NEv sec. 27, T. 24 S., R. 28 E., on right bank 

BTKTTt downstream from bridge at Gilliam Ranch, 3 miles downstream from Coko Creek, 

and 8 miles southeast of Ducor.

Records available.--October 1944 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 695 ft (from topographic map). Prior 

 To Oct. 1, 1946, at site 500 ft upstream at different datum.

Average discharge. 7 years, 4.73 cfs.

Extremes. Maximum discharge during year, 584 cfs Mov. 19 (gage height, 3.73 ft); no flow 

ror several months.

1944-51: Maximum discharge, 1,300 cfs Feb. 2, 1945 (gage height, 6.35 ft, site and 

datum then in use), from rating curve extended above 200 cfs on basis of slope-area determination of peak flow; no flow during several months each year.

Flood of Mar. 9, 1943, estimated at 2,300 cfs by Bureau of Reclamation.

Remarks. Records good. Small diversion above station for irrigation. 

Cooperation. Six discharge measurements furnished by Bureau of Reclamation.

Hating table, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

0.0

.2

.5

1.1

2.5

1.0

1.1 

1.3

1.7 

2.1

4.8

8.5

22

62

119

Discharge, in cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

(5

0

0

0

0

0

0

0

0

0

*0

0

0

0

0

0

0

~5U 113

25

»10

4.6

2.3

1.8

1.4

1.2

1.2

1.1

1.8

-

213.4

7.11

423

Dec.

3.7

2.9

*T7S

*42

»2J

»15

12

9.8

8.2

7.0

6.4

5.9

5.5

5.1

6.4

6.0

5.4

5.1

4.5

4.3

4.5

4.3

4.0

3.8

3.8

3.5

3.5

3.5

3.5

3.5

4.3

224.9

7.25

446

Jan.

3.8

3.5

3.3

37?

3.3

3.3

3.3

3.3

*3.3

4.0

5.1

7.2

5.4

4.5

4.8

5.4

6.0

6.0

34

Iff

11

8.5

8.5

7.6

7.2

6.8

6.4

5.7

6.4

7.2

6.0

212.1

6.84

421

Feb.

5.4

5.4

5.1

5.1

5.4

6.0

5.7

5.4

5.4

5.1

5.4

12 To8.0

6.8

6.0

5.7

6.0

6.4

5.7

5.7

5.7

5.4

5.1

4.8

5.1

8.5

6.8

_

_

-

173.1

6.18

343

Mar.

9.6

12

9.6

9.6

19

3325-

20

18

14

13

13

12

11

11

11

10

9.6

9.0

8.5

8.5

*8.5

8.5

8.5

8.0

7.6

7.2

6.8

6.4

tt

6.8

361.5

11.7

717

Apr.

6.0

5.7

5.4

5.7

5.7

5.7

5.4

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.

5.1

5.4

6.0

5.1

4.8

4.3

*T3

5.1

6.0

6.4

6.4

18

17

-

186.6

6.22

370

May

»11

9.6

12

Iff

9.6

9.0

8.5

8.5

8.0

7.6

7.2

6.8

6.8

7.2

6.8

6.0

5.1

4.5

4.3

3.8

3.3

3.1

2.7

2.9

3.1

2.9

2.5

2.1

1.7

1.5

1.3

179.4

5.79

356

June

1.2

17C

1.1

1.1

1.0

.9

.9

1.1

1.1

.9

.9

.8

*.7

.6

.6

.5

.3

.2

.1

.1

0

U

0

0

0

0

0

0

0

0

-

15.1

0.50

30

July

(*)

0

0

0

Aug.

0

0

0

Calendar year 1950: Max 113 Mln 0 Mean 2.75 Ac-ft 1,990

Sept.

0

-0

0

Water year 1950-51: Max 113 Min 0 Mean 4.29 Ac-ft 3,110

Peak discharge (base, 30 cfs). Mov. 19 (1:30 p.m.) 584 cfs (3.73 ft); Dec. 4 (11 a.m.) 74 cfs 

(1.80 ft); JanT 19 (1Z m.) 69 cfs (1.76 ft); Mar. 6 (9 a.m.) 43 cfs (1.53 ft). 

* Discharge measurement made on this day.
TULARE LAKE BASIN 211

Pacific Gas & Electric Co. conduit near Springville, Calif.

Location. Lat 36°12', long. 118°39', in NW£ sec. 18, T. 20 S., R. 31 E., on right bank 0.5 

mile downstream from intake and 10 miles northeast of Springville.

Records available. October 1939 to September 1951.

Gage. Water-stage recorder and rectangular concrete channel. Altitude of gage is 4,000 ft 

Tf rom topographic map).

Average discharge. 12 years, 30.9 cfs.

Extremes.--Maximum daily discharge during year, 73 cfs Mar. 20, Apr. 12, 17; no flow Apr.

1939-51: Maximum daily discharge, that of Mar. 20, Apr. 12, 17, 1951; no flow Jan. 10, 

1945, Dec. 1, 1949, Apr. 20-26, 1951.

Remarks.--Records good. Conduit diverts from left bank of North Pork of Middle Pork Tule 

 RTver in sec. 18, T. 20 S., R. 31 E. Water is used for power development at Tule River

powerhouse of Pacific Gas & Electric Co., 3.5 miles downstream, and is then returned to

river.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., in connectlon with a Federal Power Commission project.

Discharge, In cubic feet per second, water year October 1950 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.

12

12

11

TT

11

12

1111

11

11

1111

1111

11

1111

1111

11

11

11

12

12

12

15

36

T7

15

16

21

401

12.9

795

Nov.

19

20

18

10

15

8

13

13

12

12

12

12

14

17

15

15

17

19

3.7

2.5

2.0

1.9

374

4.5

3.9

3.4

3.1

2.8

30

55

377.2

12.6

748

Dec.

53

53

51

45

49

44

46

37

44

48

43

40

37

34

48

63

BT

54

55

59

60

57

54

52

50

48

46

44

46

47

46

1,511

48.7

3,000

Jan.

43

43

44

45

43

42

41

40

40

39

39

38

35

40

40

40

40,

49

62

45

46

48

51

54

58

60

58

55

53

50

47

1,435

46.3

2,850

Feb.

46

44

44

46

50

51

54

55

54

55

57

62

57

54

51

49

48

47

45

44

43

43

41

41

40

41

40

40

_

-

1,342

47.9

2,660

Mar.

37

35

34

34

36

*37

36

39

40

37

36

39

59

61

69

69

69

68

66

.73

70

72

71

68

70

71

68

69

70

66

67

1,736

56.0

3,440

Apr.

52

58

57

53

55

54

53

54

58

66

71

TO" 73

72

72

71

73

69

15

0

0

0

0

o

0

0

16

61

56

56

1,335

44.5

2,650

May

63

68

*71

70

71

71

70

71

71

J2

72

71

71

71

70

70

70

71

71

71

71

71

70

70

70

70

70

69

65

61

58

2,151

69.4

4,270

June

52

47

45

44

43

*45

43

41

43

41

40

39

38

38

37

37

36

35

35

35

35

34

34

34

32

32

31

30

30

29

-

1,135

37.8

2,250

July

 55 29

28

28

27

27

26

26

25

25

25

*24

24

23

23

23

22

22

22

22

22

21

21

21

20

20

20

20

19

18

Iff

719

23.2

1,430

Aug.

18

T5

18

18

17

17

17

17

*17

17

16

16

15

15

15

15

14

14

14

14

14

14

15

12

14

14

13

13

14

14

14

473

15.3

938

Sept.

14

Tl

14

13

13

13

12

12

12

12

12

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

14

-

389

13.0

772

Calendar year 1950 : Max 7O Mln 1.9 Mean 33.5 Ao-ft 24,240

Water year 1950-51 : Max 73 Mln 0 Mean 35.6 Ao-ft 25,800

* Discharge measurement made on this day. 

Note. No gage-height record Oct. 31 to Nov. 12, Mar. 8 to May 3, and Sept. 24-30j discharge estimated on basis of unpublished output record for Pacific Gas !c Electric Co.'s Tule River powerhouse.
213 TULARE LAKE BASIN

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 avallable.--November 1939 to September 1951. January 1909 to December 1912 at site 

ii miles upstream, records not equivalent.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 2,850 ft (from topographic map).

Average discharge.--11 years (1940-51), 26.8 cfs.

Extremes.--Maximum discharge during year, 14,000 cfs Nov. 19 (gage height, 13.06 ft, from 

floodmarks), from rating curve extended above 300 cfs on basis of estimate of peak flow 

over dam; minimum, 0.6 cfs Oct. 3-5, 11, 12, Sept. 27, 28.

1939-51: Maximum discharge, that of Nov. 19, 1950; minimum, 0.1 cfs Sept. 2,3, 1949.

Remarks. Records poor. Pacific Gas & Electric Co. conduit near Springville diverts 2.5 

miles upstream from station (see p. 211).

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., in 

connection with a Federal Power Commission project.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

21

ZZ

£3

£4 

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

0.7

.7

.7

.6

77

.8

.8

.7

.7

.7

.7

.6

.7

.8

.8

.8

.8

.9

.9

.9

.9

.9

1.0

1.0 

1.0

1.2

28

1.2

.8

2.0

1.2

54.2

1.75

108

Nov.

0.8

.8

.8

.7

78

.8

.8

.8

.8

.7

.7

.8

1.4

4.4

2.9

2.3

2.4

1,240

 T*)

.1,000

-

13,262.7

442

26,310

Dec.

» 250

35

24

22

22

19

16

14

16

15

15 

14

14

14

13

11

10 9.1

3,783.1

122

7,500

Jan.

9.1

8.6

6.8

5.1

5.0

4.6

4.6

4.5

4.2

4.5

5.5

**6.4

4.8

3.9

3.9

3.6

14 3.2

25

TT

11

*11

9.5

7.1 

6.0

6.2

6.2

6.2

6.4

6.6

6.2

220.7

7.12

438

Feb.

6.4

6.4

6.0

675

6.2

6.4

6.6

6.6

6.S

6.4

9.1

10

8.9

8.6

8.2

.9

.9

.2

.9

.9

.9

.9

.7

.9 

8

12

TT

11

_

_

-

221.8

7.92

440

Mar.

10

10

9

9

ZZ

*20

17

16

15

14

14

14

16

17

17

16

15

14

13

11

9.9

9.6

9.4

9.1 

8.9

8.9

8.6

8.4

8.4

8.4

7.9

386.5

12.5

767

Apr.

7.5

7.7

7.3

6.8

7.3

6.8

6.6

6.6

"STS 6.4

7.3

8.2

8.4

10

9.9

8.9

8.2

6.6

46

60

58

57

57

53 

54

51

36

18

19

14

660.1

22. '0

1,310

May

12

17

*19

19

21

19

17

19

20

23

24

20

17

17

15

13

14

15

17

18

17

16

13

14 

14

14

13

11

9.4

8.9

8.4

494.7

16.0

981

June

8.9

11

To

10

10

*9.4

8.6

9.1

7.3

7.1

6.8

6.6

6.6

6.6

6.4

6.4

6.4

6.0

6.2

6.2

6.2

6.0

5.9

5.9 

5.5

5.3

5.1

5.0

4.8

4.8

-

210.1

7.00

417

July

4.6

4.5

4.3

4.5

4.3

4.3

4.0

4.0

3.9

3.9

3.8

3.8

3.5

3.5

3.3

3.3

3.1

3.0

2.9

2.9

2.6

2.6

2.5

2.4 

2.3

2.3

2.3

2.2

2.1

2.6

2^0

101.3

3.27

201

Aug.

2.0

1.9

1.9

1.8

1.8

1.6

1.5

1.3

*1.2

1.1

.9

.9

.8

75

.9

1.0

1.0

1.0

1.0 1.1

1.1 1.1 1.1

2.1 27T

2.0

2.0

1.9

1.9

1.9

1.9

44.7

1.44

89

Sept.

1.0

T7o

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.6

77

.8

.8

-

25.9

0.86

51

Calendar year 1950: Max - Mln 0.5 Mean 53.9 Ac-ft 39,050

Water year 1950-51: Max - Mln 0.6 Mean 53.3 Ac-ft 38,610

Discharge measurement made on this day. 

** Field estimate made on this day.

Note. No gage-height record Nov. 19 to Dec. 14 and Feb. 25 to Mar. 6; discharge estimated on basis 

of rainfall-runoff relationship and normal recession hydrograph.
TULARE LAKE BASIN 213

Tule River near Porterville, Calif.

Location. Lat 36°05', long. 118°55', in NWij sec. 25, T. 21 S., R. 28 E., near right bank 

on downstream side of highway bridge, 1 mile upstream from South Fork and 6 miles east 

of Porterville.

Drainage area. 266 sq mi.

Records available. May 1901 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 580 ft (from topographic map). Prior to 

Oct. 1, 1930, staff gage at site 75 ft downstream at different datum.

Average discharge.--50 years, 141 cfs.

Extremes. Maximum discharge during year, 25,500 cfs Nov. 19 (gage height, 13.75 ft), from 

rating curve extended above 750 cfs on basis of slope-area determination of peak flow; 

minimum, 0.1 cfs Oct. 1, 7-11.

1901-51: Maximum discharge, that of Nov. 19, 1950; no flow during parts of 1934, 

1935, 1947, 1950.

Remarks.--Records good except those above 1,000 cfs and those for period of no gage-height 

record, which are fair. Several small diversions above station for irrigation. Power 

is developed on Middle Fork and tributaries.

Revisions (water years). W 843: 1902-4(M), 1906 (M), 1909(P), 1936 (M). W 881: 1902-9 

(yearly summary only).

1.1

1.2

1.3

1.4

Rating tables, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1-27)

1.3 

2.7

Oct. 1 to Nov. 18

1.7 14

1.9 26

Z.Z 54

2.5 93

Nov. 19 to Sept. 30

3.5

4.0 

5.0 

6.0

287

422

753

1,170

7.0 1,780

1.0

1.1 

l.Z

1.3

1.4

1.8 

4.3 

7.6

2.0 

2.4 

3.4 

4.0 

5.0

44

79

278

469

858

7.0

9.0

10.0

11.0

2,190

4,700

6,860

10, 200

6.0 1,390

Discharge, in cubic feet per second, water year October 1950 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.

0.1

.Z

.2

.2

.2

.2

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

91

38

19

13

23

188.9

6.09

375

Nov.

26

18

16

14

14

12

15

12

12

14

15

16

19

43

53

41

37

1,710

*10,000

1,390

*758

522

395

318

268

233

205

188

170

190

-

16,721

557

33,170

Dec.

232

183

909

5,020

988

656

582

484

404

358

322

297

272

310

346

273

246

230

218

200

186

177

168

162

153

149

141

135

131

130

137

12,199

394

24,200

Jan.

122

119

117

117

115

111

1O6

103

98

115

130

145

119

114

112

128

121

*130

587

292

222

193

200

200

202

20Z

193

179

179

193

168

5,132

166

10,180

Feb.

155

147

a!40

a!40

a!45

a!50

a!50

alSO

a!45

a!45

alSO

a250

a20"5

alSO

*159

151

139

139

131

130

122

126

117

115

114

115

145

133

-

_

-

4,083

146

8,100

Mar.

164

177

139

137

155

"2"IS 256

205

205

193

179

188

222

248

Z54

251

246

235

225

220

215

Z08

ZOO

193

188

188

184

182

177

168

162

6,174

199

12,250

Apr.

155

151

143

*139

137

139

133

135

141

143

143

145

147

149

151

147

143

139

143

149

137

130

122

12Z

137

*149

132

168

337

238

4,544

151

9,010

May

210

205

'Z46" 251

251

241

222

228

Z15

205

198

186

173

173

164

145

139

141

141

139

139

135

126

121

115

112

106

100

93

88

84

5,092

164

10,100

June

81

75

76

74

*70

71

68

67

65

62

57

54

50

48

46

45

42

42

40

41

40

42

40

39

36

33

34

31

29

28

-

1,529

51.0

3,030

July

26

27

TSB

25

25

23

zo

18

18

16

17

17

17

16

16

15

13

11

9.7

8.0

5.8

4.0

3.8

3.5

3.5

*3.0

2.7

3.1

Z.O

2.0

1.8

398.9

12.9

791

Aug.

1.4

1.1

1.0

.8

1.0

.8

.7

.7

.8

.8

.8

.8

.6

.4

.4

.4

.4

.4

.5

*.5

.4

.4

.4

.7

.6

.3

.3

.2

.3

.3

1.0

19.2

0.62

38

Sept.

0.7

.7

.4

.5

.6

1.3

i4m

1.3

.7

.3

.3

.5

1.1

1.1

.3

.3

.4

.9

1.1

.6

1.1

1.0

.7

.5

.5

.6

.7

.7

.8

-

Z2.5

0.75

45

Calendar year 1950 : Max 1O.OOO Min 0 Mean 141 Ac-ft 101,800

Water year 1950-51 : Max 1O,OOO Min O.I Mean 154 Ac-ft 111,300

Peak discharge (base, 600 cfs).--Nov. 19 (4:30 a.m.) Z5,50O cfs (13.75 ft); Dec. 4 (4:00 a.m.) 

5,260 cfs (9.32 ft); Jan. 19 (5 a.m.) 1,06O cfs (5.44 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

South Fork Tule River near Success.

256498 O - 53 - 15
214 TULARE LAKE BASIN

South Fork Tule River near Success, Calif.

Location. Lat 36°02', long. 118°51', in SW£ sec. 4, T. 22 S., R. 29 E., on left bank 

4.b miles southeast of Success and 5.5 miles upstream from mouth.

Drainage area. 105 sq mi.

Records available. June 1930 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 770 ft (from topographic map). Prior 

fo June 26, 1951, at site 0.4 mile downstream at different datum.

Average discharge.--21 years, 41.4 cfs.

Extremes. Maximum discharge during year, 7,100 cfs Nov. 19 (gage height, 8.35 ft at former 

site), from rating curve extended above 1,600 cfs on basis of slope-area determination 

of peak flow; no flow for several months.

1930-51: Maximum discharge, that of Nov. 19, 1950; no flow at times during each year 

except 1938, 1943, 1945.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Several diversions above station for irrigation.

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

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

o

0

0

0

0

8.0

4.7

2.4

1.6

4.0

20.7

0.67

41

Nov.

4.2

2.5

1.7 

1.1

.8

.4

.4

.5

1.2

.6

.6

**.5

.9

12

13

7.8

7.3

424

'2,470

349

*204

128

94

75

64

59

57

55

54

57

-

4,145.5

138

8,220

Dec.

59

54

106 

454

183

120 

99

82

72

66

62

59

56

62

64

56

54

53

52

52

52

51

51

51

51

50

50

50

50

49_

49

2,419

78.0

4,8OO

Jan.

48

48

48 

48

a47

a47 

a45

a43

a40

a42

*a43

47

41

40

40

47

42

48

~77 180

63

60

60

60

59

57

56

54

53

54

50

1,687

54.4

3,350

Feb.

48

47

46 

45

48

49

48

49

48

48

49

69

57

52

*50

48

47

48

45

45

46

50

48

48

47

48

51

52

_

.

-

1,376

49.1

2,730

Mar.

58

60

57

58

64

112 

89

86

82

75

71

71

74

77

77

77

75

72

70

70

69

*67

65

64

62

62

61

60

59

58

56.

2,158

69.6

4,280

Apr.

54

53

52 

52

53

54 

54

53

52

52

49

45

45

45

44

43

42

42

44

45

43

42

41

4T

48

52

46

58

81

68

-

1,500

50.0

2,980

May

64

66

76

72

68 

64

62

58

56

54

52

51

52

50

45

42

40

39

37

36

34

34

32

29

28

26

25

24

23

22

1,435

46.3

2,850

June

22

20

20 

*19

18

18 

18

17

16

16

15

14

12

12

12

11

11

*10

alo

alo

alO

alo

alO

a9

a9

8.7

7.9

7.1

5.7

6.0

-

384.4

12.8

762

July

6.4

6.4

fci a5

a4 

a3 *a3

2.5

2.1

1.5

1.7

1.7

1.4

1.3

1.2

.6

.8

.7

.8

.4

.3

.2

.1

0

0

o

0

0

0

0

57.6

1.86

114

Aug.

(*)

0

0

0

Sept.

o

0

o

Calendar year 1950; Max 2,47O Min O Mean 31.7 Ac-ft 22,970

Water year 1950-51: Max 2,470 Min 0 Mean 41.6 Ac-ft 30,130

Peak discharge (base. 200 efs). No. 19 (6 a.m.) 7,100 cfs (8.35 ft); Dec. 4 (5 a.m.) 765 cftf 

(2.83 ft); Jan. 19 (4:30 a.m.) 338 cfs (1.85 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.

a Ho gage-height record; discharge estimated on basis of 2 discharge measurements and records for 

Tule River near Porterville.
TULARE LAKE BASIN 215

Middle Fork Kaweah River No. 3 conduit near Potwisha Camp, Calif.

Location. Lat 36°30'35", long. 118°47'50", in NE£ sec. 26, T. 16 S., R. 29 E., on right 

bank 0.6 mile downstream from intake and 0.7 mile southeast of Potwisha Camp.

Records available.--Mareh 1948 to September 1951.

Gage.--Water-stage recorder and concrete channel. Altitude of gage is 2,200 ft (from 

topographic map).

Extremes. 1948-51: Maximum daily discharge, 66 cfs July 14-18, 1951; no flow Dec. 14-16, 

 1949, Nov. 19-24, 27, 28, 1950.

Remarks.--Records good except those for periods of ice effect, which are fair. Conduit 

diverts from left bank of Middle Pork Kaweah River. Flow from this conduit joins with 

that of Marble Fork No. 3 conduit about 1,000 ft below gage, the combined flow passes 

through Kaweah River No. 3 powerhouse of Southern California Edison Co., and is returned 

to Kaweah River about 2.5 miles below gaging station.

Cooperation. Water-stage recorder graph and 50 discharge measurements furnished by 

Southern California Edison Co.

Discharge, In cubic feet per second, 1948-51 

1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

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.

_

_

__

_

-

.

_

_

-

32

*32

32

44

46

48

49

*48

56

51

51

57

59

60

59

59

60

60

61

*61

*61

_

_

-

Apr.

*59

58

ST

58

58

58

60

61

61

60

60

60

60

60

61

61

61

61

61

62_

62

62

61

61

61

62

62

62

62

62

-

1,815

60.5

3,600

Calendar year : Max Mln Mean

May

62

62

62

63E3-

63

63

61

*55

56

58

57

56

55

56

56

56

56

55

56

57

57

57

58

58

*58

*43

5ff

58

58

58

1,791

57.8

3,550

June

57

BT57

57

57

58

58

59

5T

58

58

58

58

58

58

58

58

58

58

58

57

57

57

57

57

57

57

57

57

58

-

1,728

57.6

3,430

July

57

57

56

55

57

60

63

63

*64

ST

63

63

63

63

63

63

63

63

63

62

61

61

61

59

57

52

50

48

47

45

43_

1,809

58.4

3,590

Aug.

42

4T

40

38

36

34

32

31

30

*29

27

27

25

24

23

22

22

21

20

20

19

18

18

19

18

17

16

15

15

15

14

768

24.8

1,520

Sept.

14

TT

14

14

14

13

13

13

12

12

12

12

12

11

*9.9

9.3 57B"

10

11

11

11

12

12

12

14

14

14

12

11

11

-

363.8

12.1

722

Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day.
TULARE LAKE BASIN

Discharge, in cubic feet per second, of Middle Pork Kaweah River No. 3 

conduit near Potwisha Camp, Calif., 1948-51 Continued

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

11

10

11

12

12

12

10

9.9 1C 

12

15

14

16

TF

15

14

13

13

13

*13

12

12

12

12

12

12

12

14

15

15

389.9

12.6

773

Nov.

15T5-

14

15

14

14

13

13

13

*12

12

12

12

11

IT

12

12

13

13

12

12

12

13

13

12

13

12

13

12

12

-

382

12.7

758

Dec.

12

TT

14

15

16

18

16

20

20

17

16

16

17

*22

18

20

22

19

20

23

24

22

20

b!4

bl8

22

25

Z?

23

22

23

590

19.0

1,170

Jan.

23

24

22

b!4 bT4~

b22

22

*22

20

b!8

b20

b20

18

18

17

17

bl8

18

22

b28_

26

25

26

b21

b24

b26

b25

b25

b25

26

26

672

21.7

1,330

Feb.

24

24

24

23

2T

25

b28

*b27

28

32

40

b27

b24

b29

33

36

43

49

53

53

47

51

5555"

54

54

53

51

_

_

-

1,068

38.1

2,120

Mar.

51

BT

54

62

57

52

55

52

51

54

64

BT

59

61

*63

63

63

63

63

61

61

61

61

60

62

63

63

61

61

63

63

1,843

59.5

3,660

Apr.

63

63

63

64

65_

62

59

58

59

59

59

58

*57

57

57

57

57

57

57

57

57

56

57

57

57

57

57

57

57

57

-

1,757

58.6

3,480

May

57

BT

57

57

57

57

57

57

57

57

*58

58

59

57

59

58

58

58

58

58

58

58

59

59

59

59

58

57

57

57

57

1,791

. 57.8

3,550

June

57

57

57

57

57

57

57

57

57

*45_

*57

58

58

57

56

56

56

56

56

56

57

57

59

59

59

59

59

59

61

BT

-

1,714

57.1

3,400

July

61

ST

61

61

60

59

58

56

53

51

*48

47

46

42

41

39

38

36

36

33

31

29

28

28

28

27

26

25

25

2425"

1,283

41.4

2,540

Aug.

25

5T

22

22

*21

20

20

20

19

19

19

19

18

17

17

16

16

16

15

15

14

17

20

16

15

15

15

15

15

14

13

549

17.7

1,090

Sept.

12 TZ"

ll

ll

10

*10.

9.9

9.6

9.9

10

11

11

11

11

10

10

10

9.9

9.3

8.9

8.6

8.9

8.3

877

8.3

8.6

8.6

8.9

8.9

8.9

-

293.8

9.79

583

Calendar year 1948 : Max - Min - Mean - Ae-ft -

Water year 1948-49: Max 65 Min 8.3 Mean 33.8 Ae-ft 24,450

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total,

Mean

Ac-ft

Oct.

8.6

H7T

8.6

8.6

8.6

9.3

9.6

9.9

11

IT

*11

10

9.9

9.6

8.9

9.3

10

10

11

11

11

11

11

10

10

9.9

9.9

9.9

9.9

9.6

9.6

306.3

9.88

608

Nov.

9.3

9.3

575" 8.9

8.9

8.9

9.3

*9.9

18

5J5

36

34

37

40

39

39

38

39

39

38

37

35

33

32

36

38

34

33

32

31

-

866.4

28.9

1,720

Dec.

29

27

25

24

22

*21

21

23

22

26

19

21

8.9

00~

0

19

34

46

3T

35

39

40

40

37

38

39

40

41

38

37

845.9

27.3

1,680

Jan.

37

36

b24 bSS"

b29

b30

b30

34

33

33

35

*36

b34

36

b37

44

59

60

61

BT

61

61

61

61

60

57

58

61

61

58

54

1,430

46.1

2,840

Feb.

52

53

53

59

61

61

61

60

60

61

61

61

61

61

61

61

61

61

*62

BT

61

61

61

48

31

28

25

24

_

_

-

1,532

54.7

3,040

Mar.

24 *5B27

27

38

45

48

52

53

53

53

52

53

53

53

53

53

53

53

54_

54

54

54

54

54

54

54

54

*54

54

54

1,517

48.9

3,010

Apr.

*55

55

54

BT

54

54

54

54

54

54

54

54

54

54

55

55

5655-

55

55

55

55

54

54

55

55

55

54

54

55

-

1,636

54.5

3,240

May

54

54

54

54

55

55

54

54

54

*55

*46SB55

55

56_

56

55

55

55

55

55

55

54

55

55

55

56

56

50

54

55

1,686

54.4

3,340

June

54

55

55

54

54

54

*53

ST

*54

54

55

54

54

55

55

54

54

54

54

54

55

54

54

54

54

57

60

61

BT

60

-

1,654

55.1

3,280

July

60

61

61

61

60

61

61

*63

BT

63

63

62

62

62

62

61

61

61

61

60

59

57

56

55

52

51

48

46

44

41

39_

1,777

57.3

3,520

Aug.

40

42 SB36

34

32

*30

29

27

26

25

24

23

22

22

21

20

20

20

19

18

18

20

18

17

16

15

14

13

13

12.

724

23.4

1,440

Sept.

12T5"

12

13

13

14

16

22

19

20

17

17

16

*16

16

16

19

23

2T

19

*17

17

16

15

15

15

15

14

14

14

-

485

16,2

962

Calendar year 1949 : Max 65 Min o Mean 35.6 Ac-ft 25,760

Water year 1949-50 : Max 63 Min 0 Mean 39.6 Ac-ft 28,680

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice
TULARE LAKE BASIN 217

Discharge, In cubic feet per second, of Middle Fork Kaweah River No. 3 

conduit near Potwlaha Camp, Calif., 1948-51 Continued

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

14

14

13

12

12

13

13

11

11

11

10

9.6

5TF

*9.9

10

10

10

10

11

9.9

9.9

10

11

14

12

17

59

BT

52

50

58

571.2

18.4

1,130

Nov.

58

5T

55

53

49

43

38

35

*33

31

27

25

28

42

39

42

46

33

00~

0

0

0

0

2.8

3.2

0

0

19

53

-

811.0

27.0

1,610

Dec.

54

52

57

4T

*45

40

4T

50

50

50

49

49

49

51

50

50

50

51

51

52

52

52

52

52

52

52

52

53

52

53

53

1,565

50.5

3,100

Jan.

52

52

53

52

52

52

52

52

51

5T

*52

52

52

53

53

53

*53

54

56

5T

54

55

55

55

55

55

55

55

55

55

54

1,654

53.4

3,280

Feb.

54

5S

55

56

57

58

*57

57

57

57

56

57

56

55

56

58

57

57

57

57

57

57

56

56

57

57

61

62~ 

_

-

1,592

56.9

3,160

Mar.

62

62

62

63

BT

59

*59

57

57

56

57

57

57

57

57

57

57

57

57

56

56

56

*56

56

55

55

55

55

55

54

5T

1,774

57.2

3,520

Apr.

54

54

54

54

55

55

55

56

56

*48

*58

5F

58

58

58

58

57

57

57

56

56

57

57

57

57

57

57

57

57

57

1,685

56.2

3,340

May

57

57

57

57

57

58

*5F

*58

58

58

58

58

57

57

58

58

58

58

57

57

57

57

57

57

56

56

56

55

55

55

55

1,767

57.0

3,500

June

55

55

55

55

54

55

56

5F

56

56

56

*56

56

56

56

56

56

55

55

54

54

54

54

54

54

54

54

54

54

54

1,649

55.0

3,270

July

53

53

53

52

53

54

54

59

59

59

*61

64

65

66

BT

66

66

66

65

64

62

62

61

59

57

55

53

51

48

46

44

1,796

57.9

3,560

Aug.

42

4T

40

39

37

36

34

32

31

30

30

28

27

26

*25

25

25

25

25

24

24

24

23

23

22

20

*1915"

19

19

853

27.5

1,690

Sept.

18

IF

17

16

16

16

15

15

14

14

13

*13

13

12

11

11

11

11

11

11

11

11

11

10

9.9

10

10

10

11

11

-

380.9

12.7

756

Calendar year 1950: Max 63 Mln 0 Mean 42.2 Ao-ft 30,510

Water year 1950-51 : Max 66 Mln o Mean 44.1 Ao-ft 31,920

Discharge measurement made on this day.
218 TULARE LAKE BASIN

Middle Pork Kaweah River near Potwisha Camp, Calif.

Location. Lat 36°30'45", long. 118°47'25", in Nw£ sec. 25, T. 16 S. , R. 29 E. , on right

 bank 0.7 mile southeast of Potwisha Camp and 0.9 mile upstream from confluence with 

Marble Fork Kaweah River.

Drainage area.--100 sq mi.

Records available.--July 1949 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 2,100 ft (from 

topographic map).

Extremes.--1949-50: Maximum discharge, 894 cfs Feb. 6 (gage height, 8.19 ft); minimum, 0.1

 ci's Nov 11-16.

1950-51: Maximum discharge, 17,500 cfs Nov. 19 (gage height, 15.70 ft), from rating 

curve extended above 1,000 cfs on basis of slope-area determination of peak flow; minimum, 0,1 cfs Oct. 28-30, Nov. 3, 4.

Remarks.--Records good except those for periods of doubtful gage-height record, which are

 fair. Middle Fork Kaweah River No. 3 conduit near Potwisha Camp diverts 0.5 mile upstream from station (see p. 215).

Cooperation.--Water-stage recorder graph and 23 discharge measurements furnished by 

Soutnern California Edison Co.

Discharge, in cubic feet per second, 1949-51 

1949

Day

1

2

3

4

5

6

7

8

Ac-ft

July

-

-

_

-

-

-

_

-

Aug.

0.7

.7

.6

.6

*.6

.6

.6

.6

Sept.

0.7

.7

.6

.6

.6

* . 6

.6

.6

Day

9

10

11

12

13

14

15

16

July

_

_

_

0.1

.5

1.0

1.0

1.0

Aug.

0.6

.6

.6

.6

.6

.6

.6

.6

Sept.

0.6

.6

.6

.6

.6

.6

.6

.6

Day

17

18

19

20

21

22

23

24

July

1.0

.9

.9

.9

.9

.9

.9

.8

Aug.

0.6

.6

.6

.6

.6

.6

.6

.6

Sept.

0.5

.5

.5

.5

.5

.5

.5

.5

Day

25

26

27

28

29

30

31

July

0.8

.8

.8

.8

.8

.7

.7

_

Aug.

0.6

.6

.6

.6

.6

.7

.7

19.0

38

Sept.

0.5

.5

.5

.5

.5

.5

_

16.8

33

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.

~T5 0.6

.6

.6

.6

.6

.6

.6

.6

.6

*.6

.6

.6

.6

.6

.6

.7

.T

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.7

.6

.6

19.7

0.64

39

Nov.

0.6

.6

.6

.5

.5

.5

.5

».5

.6

BT_

.2

.1

.1

.1

_._!

.4

.7

.7

.7

.7

.7

.7

.7

.6

.7

.8

.7

.7

.7

.7

-

82.7

2.76

164

Dec.

0.7

.6

75

.6

.6

.6

.6

.7

.7

.7

.6

.6

14

24

2T

23

11

1.8

2.2

.8

.7

.7

.7

.7

.6

.6

115.9

3.74

230

Jan.

0.6

.6

.5

77

.6

.7

.9

1.0

.9

.9

1.0

1.0

.9

1.1

1.0

1.5

48

3T

24

29

30

26

31

31

8.3

5.1

2.4

17

12

3.5

1.6

313.8

10.1

622

Feb.

1.6

.7

.7

67

242

484

TM

110

78

86

90

60

52

48

51

58

61

65

69

*69

67

75

72

93

119

131

132

134

-

-

2,710.0

96.8

5,380

Mar.

135

T?6

*119

129

127

107

96

88

71

62

58

49

44

41

51

36

49

42

43

43

47

67

54

116

93

81

75

86

102

*115

132

2,469

79.6

4,900

Apr.

*150 T79-

204

231

247

216

195

202

188

177

186

204

202

167

165

193

237

281

341

421

484

484

466

*474

480

502

350

428

393

393

-

8,970

299

17,790

May

362

284

272

231

214

202

173

157

TBT

*179

204

186

209

267

364

438

463

456

491

525

545

509

456

432

484

498

513

537

581

616

639

11,648

376

23,100

June

630

373

498

463

474

404

296

*261

*290

278

261

244

231

204

216

216

221

234

247

267

267

226

214

188

157

141

132

132

129

127

-

8,221

274

16,310

July

107

115

TDT

96

104

68

61

*60

56

80

67

54

47

41

33

24

19

15

11

5.7

3.6

1.8

1.3

1.2

1.2

1.1

1.1

1.0

1.0

.9 ~75

1,183.8

38.2

2,350

Aug.

0.9

.9

 1.0

ru

1.0

1.0

.9

.9

.9

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

77

.7

.7

25.8

0.83

51

Calendar year 1949: Max - Mln - Mean - Ac-ft

Sept.

0.7

'.7

.7

.7

.7

.8 7&-

.8

.8

.8

.8

.8

*.8

.8

.8

.8

.8

.8

.8

*.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

-

22.9

0.76

45

Water year 1949-50: Max 639 Mln 0.1 Mean 98.0 Ac-ft 70,980

Peak discharge (base, 600 cfa).--Feb. 6 

(7.64 ft); May 31 (8:30 p.m.) 858 cfs

Discharge measurement made on this day.

:30 a.m.) 894 ofs (8.19 ft); Apr. 26 (8:30 p.m.) 603 ofs 

.13 ft).
TU1ARE LAKE BASIN 219

Discharge, In cubic feet per second, of Middle Pork Kaweah River near Potwlsha Camp, Calif.,

1949-51--Contlnued

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.8

.9

~5.4 155

2.6

10

54

245.5

7.92

487

Nov.

15

6.9

3.7

2.0

1.1

1.0

.9

.8

.8

.8

.7

7T

.7

1.0

.8

.9

1.5

3£90

*6rL10

1,180

725

504

350

281

242

209

188

171

148

140

-

14,177.3

473

28,120

Dec.

137

105

1,310

*1,360

572

417

596

404

314

261

224

202

179

277

234

179

157

142

129

121

113

105

100

96

93

88

81

75

72

69

7T

8,283

267

16,430

Jan.

56

58

57

52

48

43

37

34

*31

3S

35

36

35

37

41

43

*41

79

-J5 126

72

81

87

87

87

86

78

72

75

71

58

1,853

59.8

3,680

Feb.

60

54

49

56

76

78

*78

81

76

81

84

~53 108

82

74

61

56

52

48

49

43

41

35

34

3¥

35

36

36

_

_

-

1,687

60.2

3,350

Mar.

42

37

35

TZ

58

*65

69

74

78

75

69

76

100

116

124

131

132

129

131

129

129

129

127

127

131

135

135

142

148 T42~

131

3,190

103

6,330

Apr.

119

115

110

104

100

105

105

111

132

184

*237

330 330"

320

290

270

230

200

210

200

220

260

260

230

210

190

180

200

190

180

-

5,922

197

11,750

May

160

TW

210

220

200

190

*220

*240

260

310

310

240

210

210

190

200

220

290

390

460

460

420

390

460

644

675 '575"

608

500

450

350

10,542

340

20,910

June

255

275

275

260

265

269

269

275

281

281

275

*275

275

265

265

'308" 325

281

281

278

229

202

173

165

155

146

144

135

127

125

7,132

238

14,150

July

123

108

99

92

74

62

56

47

46

46

41

*37

32

27

24

24

32

36

39

23

17

13

10

6.9

4.5

2.1

1£

1.7

1.7

1.6

T5

1,129.9

36.4

2,240

Aug.

1.0

.6

.6

.6

1.5

1.7

7?

.7

.7

.7

.7

.6

.6

.6

*.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

*.6

.5

.5

.5

.5

20.8

0.67

41

Sept.

0.5

.5

.5

.5

.5

71" .4

.4

.4

.4

.4

*.5

.6

76

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

16.1

0.54

32

Calendar year 1950: Max 6,110 Min 0.5 Mean 160 Ao-ft 115,600

Water year 1950-51: Max 6,110 Mln 0.4 Mean 148 Ac-ft 107,500

Peak discharge (base, 600 cfs).--Oct. 27 (2:30 a.m.) 840 cfs (8.1 ft); Nov. 19 (12:30 

cfs (15.70 ft); Dec. 4 (1 a.m.) 3,100 efs (10.37 ft); Dec. 7 (4 a.m.) 720 cfs (7.89 ft); 

(8:30 p.m.) 942 cfs (8.26 ft).

* Discharge measurement made on this day.

Note. Doubtful gage-height record Jan. 1-10, Apr. 12 to May 24, May 29 to June 5, June 11-16; 

discharge estimated on basis of recorder graph and records for Middle Pork Kaweah River No. 3 conduit near Potwlsha Camp, Marble Pork Kaweah River No. 3 conduit at Potwlsha Camp, and Marble Pork 

Kaweah River at Potwlsha Camp.

a.m.) 17,500 

May 26
220 TULARE LAKE BASIN

Marble Fork Kaweah River No. 3 conduit at Potwisha Camp, Calif.

Location.--Lat 36°31'10", long. 118 0 48'00", in SE-j sec. 23, T. 16 S. , R. 29 E. , on right

 DanK 0.3 mile downstream from intake and 0.1 mile north of Potwisha Camp.

Records available. March 1948 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 2,150 ft (from topographic map).

Extremes.--1948-51: Maximum daily discharge, 84 cfs Feb. 26, Mar. 4, 1950; no flow Dec.

 14, 1949, Nov. 24, 1950.

Remarks.--Records good except those for periods of ice effect or no gage-height record,

 whTch are fair. Conduit diverts from left bank of Marble Fork Kaweah River. Flow from 

this conduit joins with that of Middle Fork Kaweah River No. 3 conduit about threequarters of a mile below gage, the combined flow passes through Kaweah River No. 3 

powerhouse of Southern California Edison Co., and is returned to Kaweah River about 

3 miles below gaging station.

Cooperation.--Water-stage recorder graph and 51 discharge measurements furnished by 

5outnern California Edison Co.

Discharge, in cubic feet per second, 1948-51 

1948

Day

1

2

3

4

5

6

7

8

9

10

11

12

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.

_

-

-

-

9.0

12

9.6

*10

11

10

10

12

12

14

16

16

*16

17

16

14

14

19

25

29

24

24

27

 jz 33

*28

*28

-

-

-

Apr.

*36

-40

38

35

31

33

29

?5

30

30

30

30

31

32

32

32

33

33

34

34

34

34

33

33

33

33

33

33

32

33

-

983

32.8

1,950

May

34

3¥

34

35

35

34

36

*42

*46

46

47

48

4T

47

48

48

48

47

46

46

46

47

48

46

46

*46

*46

48

45

45

44

1,355

43.7

2,690

June

45

44

46

46

47

47

48

TO

48

47

47

47

47

47

46

46

46

46

47

47

46

46

46

46

45

44

44

44

42

44

-

1,379

46.0

2,740

July

44

45

¥J

44

43

38

35

34

*26

30

30

28

25

24

21

21

20

18

17

16

15

14

14

13

13

13

10

TT

11

ll

10

738

23.8

1,460

Aug.

9.6 973-

9.0

8.3

8.0

7.4

7.1

7.1

7.1

*6.8

6.8

6.5

6.2

6.2

5.9

5.6

5.6

5.3

5.3

5.3

5.0

5.0

5.0

6.2

5.0

4.2

3.4

472

4.2

4.2

3.6

188.4

6.08

374

Sept.

3.6

3.6

3.6

3.4

3.4

3.1

3.9

774

3.1

3.1

2.8

2.8

2.8

2.8

_/?_

.8

3.4

3.4

3.6

3.6

 a4

-

100.9

3.36

200

Calendar year : Max Mln Mean Ac-ft

Water year : Max Min Mean Ao-ft

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in
TULARE LAKE BASIN 221

Discharge, in cubic feet per second, of Marble Fork Kaweah River No. 3 conduit at Potwisha 

Camp, Calif., 1948-51--Continued

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

. a4

*3.9

3.6 375-

3.6

3.9

4.2

3.9

3.9

4.4

4.7

5.0

124.7

4.02

247

Nov.

5.0 

 57TJ 

4.7 

4.7 

4.4

4.2 

4.2 

4.2 

3.9 

*3.4

3.6 

3.6 

3.6 

3.6 

3.6

3.6 

3.9 

4.2 

4.2 

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

"

123.8

4.13

246

Dec.

4.2 

4T2 

4.7 

4.7 

4.7

5.6 

5.3 

5.6 

5.6 

5.3

oooo

5.9 

6.8 

5.9 

5.9 

6.2

6.2

6.2 

5.6

5.3

5.6

6.2

7.4

eis

6.5

6.5

174.4

5.63

346

Jan.

6.5 

7.1 

6.5 

5.3 

blTTO"

6.5 

6.5 

*6.8 

6.8 

b6.0

b6.5 

b7.0 

7.7 

7.1 

6.2

5.9 

b6.0 

6.2 

8.3 

9.3

7.7

7.7 

7.7

7.4

b7.4

b7.4

7.4

7.1

7.1

7.1

7.4

215.6

6.95

428

Feb.

7.4 

777 

7.7 

7.7 

8.0

8.0 

9.3 

*8.7 

8.7 

9.3

11 

9.3 

b9.3 

b9.3 

9.3

9.6

11 

13 

15 

15

13

15 

17

16

15

15

14

14

-

-

-

313.3

11.2

621

Mar.

14

15 

18 

15

15 

15 

14 

14 

16

21 

16 

16 

18 

*20

21 

24 

27 

31 

25

24

27 

25

22

20

20

25

33

75

24

23

639

20.6

1,270

Apr.

24

26 

37 

42

40 

36 

34 

38 

38

36 

38 

*41 

42 

42

42 

41 

41 

42 

42

42

42 

41

42

44

43

44

44

44

44

-

1,176

39.2

2,330

May

44 

44 

43

44

44 

45 

45 

45 

*44

44 

45 

46

IT 

45

45 

46 

46 

46 

45

46

46 

46

46

46

46

46

46

45

44

44

1,396

45.0

2,770

June

44 

44 

45 

44 

44

45 

46 

46 

46 

*48

*46 

46 

46 

45 

43

45 

44 

44 

44 

44

43

42 

42

39

36

35

34

30

28

26

-

1,254

41.8

2,490

July

23 

ZZ 

21 

20 

20

18 

17 

16 

15 

14

13 

*12

12 

11 

11

10 

9.6 

9.0 

8.3 

8.0

8.0

8.0 

.7

.7

.7

.7

.4

.1

6.8

6.5

371.3

12.0

736

Calendar year 1948: Max - Min - Mean - Ac-ft

Aug.

6.8 

6.5 

5.9 

*5.6 

5.3

5.0 

5.0 

4.7 

5.0 

5.0

5.3 

5.3 

5.0 

4.7 

4.7

4.7 

4.4 

4.4 

4.2 

3.9

3.6

4TT 

7.7 57S4.7

4.2

3.9

3.9

3.9

5.0

3.9

152.5

4.92

302

Sept.

3.6 

374

3.1 

3.1 

3.1

3.1 

*3.1 

2.8 

2.8 

2.8

3.1 

3.1 

2.8 

2.8 

2.8

2.8 

2.8 

2.5 

2.2 

2.2

2.2

2.2 

2.2

2.0

2.2

2.5

2.8

2.8

2.8

81.7

2.72

162

Water year 1948-49: Max 48 Min 2.0 Mean 16.5 Ac-ft 11,950

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage

b Stage-discharge relation affected by Ice.

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

2.2

2.2

2.0 ?70-

2.0

2.5

2.8

3.1

3.1

3.1

*3.1

2.8

2.5

£.5

2.5

3.4

3.9 37B3.9

3.6

3.6

3.6

3.4

3.1

2.8

2.5

2.5

2.5

2.2

2.2

88.0

2.84

175

Nov.

2.0 270"

2.2

2.2

2.5

2.2

2.8

*3.1

5.0

32

12

10

9.3

9.6

9.0

12

11

12

14

14

14

13

13

13

15

18

16

15

15

14

-

314.9

10.5

625

Dec.

13

11

11

9.6

9.0

S.O

*S.O

10

9.3

9.3

6.2

7.4

2.7

0~. 2

.5

5.0

11

13

11

11

12

12

12

12

12

13

13

14

T5

13

292.2

9.43

580

Jan.

13

12

9.6

bll

bll

11

11

12

12

12

13

*14

13

13

14

15

27

31

26

28

30

33

36

BT

25

24

25

27

27

25

22

614.6

19.8

1,220

Feb.

Z3~ 23

23

32

40

38

37

36

37

38

38

38

38

38

38

39

39

39

40

*39

39

39

40

59

79

84

S?

80

-

_

-

1,215

43.4

2,410

Mar.

83

*75

77

84

*£§

46

46

53

46

46

46

46

46

47

46

47

48

48

48

48

48

49

47

46

46

45

45

45

*444"¥

44

1,598

51.5

3,170

Apr.

*44

17

44

44

44

44

44

44

44

44

44

44

45

45

46

46

47

48

¥5

44

46

46

45

45

45

46

46

46

46

46

1,352

45.1

2,680

May

45

44

44

46

46

46

46

46

46

*46

*51

?K

46

48

48

50

48

47

46

46

46

46

48

47

47

47

47

47

47

47

47

1,447

46.7

2,870

June

47

47

48

49

50

*49

*47

46

47

46

46

46

46

46

47

47

47

48

48

46

46

46

46

45

43

46

45

45

46

46

1,397

46.6

2,770

July

45

46

45

44

44

42

41

40

*38

42

40

34

30

26

24

21

20

19

17

16

15

14

13

13

12

13

12

11

11

10

9.6

807.6

26.1

1,600

Aug.

9.3

*11-5.6

9.0

8.7

8.7

8.7

*7.4

7.1

6.8

6.8

6.8

6.5

5.9

5.6

5.3

5.0

4.7

4.4

4.2

4.2

5.0

4.4

4.4

4.2

3.9

3,4

3.1

3.1

2.8

2.5

182.5

5.89

362

Sept.

2.5

2.5

2.2

T^

2.2

2.2

2.8

3.9

3.6

3.6

3.4

3.4

*3.4

3.6

3.9

4.2

5.3

8.3

eTTJ

*6.5

5.6

5.0

4.7

4.4

4.2

4.2

4.2

4.2

3.9

3.9

122.0

4.07

242

Calendar year 1949: Max 48 Min 0 Mean 17.2 Ac-ft 12,490

Water year 1949-50; Max 84 Min o Mean 25.8 Ac-ft 18,700

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice
222 TDLARE LAKE BASIN

Discharge, in cubic feet per second, of Marble Fork Kaweah River No. 3 conduit at Potwisha 

Camp, Calif., 1948-51 Continued

Day

1

Z

3

4

5

6

7

e

9

10

1}

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.

3.9

3.9

3.6

3.6

3.4

3.4

3.4

3.1

3.1

3.1

3.1

2.8

*T^

2.8

2.8

2.8

9.9

8.1

3.9

3.6

3.6

3.6

3.9

4.4

4.7

5.6

34

35

32

31

36

270.9

8.74

537

Nov.

34

29

31

30

28

23

19

*18

17

15

13

12

12

16

14

17

19

22

.5

.1

.1

.1

**.!

0

5.1

40

70

TO

67

57

-

681.0

22.7

1,350

Dec.

52

52

60

51

*51

20

3T

48

50

48

47

46

48

50

50

50

50

49

49

50

50

50

50

50

50

50

50

57

66

67

M

1,556

50.2

3,090

Jan.

5855"

5^

52

52

52

51

50

49

50

*50

50

50

50

50

50

*48

575

49

48

48

49

49

50

50

50

50

50

50

50

48

1,560

50.3

3,090

Feb.

49

50

50

50

51

52

*5?

52

50

50

48

48

46

46

45

45

45

45

¥6- 43

46

46

46

46

46

47

48

48

_

_

-

1,336

47.7

2,650

Mar.

48

48

48

48

48

49

*15

48

47

46

46

48

48

46

46

44

41

44

44

44

46

46

*46

46

46

46

46

46

46

45

44

1,436

46.3

2,850

Apr.

44

I*

44

45

46

48

48

48

48

*51

*50

49

48

48

46

46

46

46

46

46

47

47

48

48

48

47

47

47

47

46

-

1,409

47.0

2,790

May

46

46

47

47

46

46

*46

*46

47

47

46

14" 44

44

44

44

44

45

45

45

46

45

45

46

46

46

46

45

45

44

44

1,407

45.4

2,790

June

43

4T

43

43

44

44

44

44

44

44

44

*44

46

46

46

46

46

47

47

47

46

46

46

46

45

44

44

44

45

44

-

1,346

44.9

2,670

July

44

454"5

44

40

37

33

31

31

30

*30

27

25

23

21

20

19

21

20

17

16

15

14

13

12

12

11

1C

10

10

9.5

735.3

23.7

1,460

Aug.

570- 9.0

8.7

8.3

8.0

8.0

7.4

7.4

8.3

9.0

7.1

6.8

6.2

5.9

*5.6

5.6

5.3

5.3

5.0

BTO

5.0

5.0

5.3

5.3

5.6

5.3

*5.0

5.0

5.0

5.3

5.6

198.3

6.40

393

Sept.

5.6

BT3

5.3

5.0

4.7

4.7

4.4

4.2

3.9

3.6

*3.4

3.4

3.1

3.1

2.8

2.8

 575 2.5

2.8

3.1

3.1

3.4

3.1

2.8

2.8

2.8

2.8

2.8

2.8

3.1

-

105.7

3.52

210

Calendar year 1950: Max 84 Min 0 Mean 30.8 Ac-ft 22,300

Water year 1950-51: Max 70 Min 0 Mean 33.0 Ac-ft 23,880

Discharge measurement made on this day. 

* F'ield estimate made on this day.
TULARE LAKE BASIN 323

Marble Fork Kaweah River at Potwisha Camp, Calif.

Location. Lat 36°31'10", long. 118 0 48'10", 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 1951.

Page.--Water-stage recorder and concrete control. Altitude of gage is 2,150 ft (from 

topographic map).

Extremes. 1950: Maximum discharge during period March to September, 677 cfs May 29 (gage 

height, 5.25 ft); minimum, 0.1 cfs on many days in July and August.

1950-51: Maximum discharge during water year, 4,000 cfs Nov. 18 (gage height, 10.1 

ft), from rating curve extended above 1,100 cfs on basis of logarithmic plotting and an 

estimate of peak flow from head on diversion dam upstream; minimum, 0.1 cfs on many 

days in November, July, and August.

Remarks. Records good above 20 cfs and fair below, except those for periods of indefinite 

stage-discharge relation, which are also fair. Marble Fork Kaweah River No. 3 conduit 

at Potwisha Camp diverts 0.3 mile upstream from station (see p. 215).

Cooperation.--Water-stage recorder graph and 18 discharge measurements furnished by 

Southern California Edison Co.

Rating table, Mar. 5, 1950, to Sept. 30, 1951, except periods

of Indefinite stage-discharge relation

(gage height, In feet, and discharge, In cubic feet per second) 

(Shifting-control method used Oct. 27 to Nov. 8, 1950)

1.0

1.3 

1.5 

1.7 

2.2

0.1

.2

.5

1.1

3.2

2.7

2.8

2.9 

3.1 

3.5

4.0

4.5 

5.0 

6.0 

8.0

257

410

586

970

2,160

Discharge, tn cubic feet per second, 1950-51 

1950

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-f<

Oct. Nov. Dec. Jan. Feb. Mar.

.

_

_

-

*25

34

28

17

12

9.9

9.4

5.7

4.3

3.7

1.5

2.0

7.4

5.5

5.9

6.9

9.4

22

12

28

17

13

11

14

*32

46

_68

.

-

-

Apr.

*87

110

128

147

152

128

107

91

82

76

78

91

94

72 78"

114

154

185

235

304

370

337

328

*351

364

371 332"

294

286

290

-

5,836

195

11,580

Calendar year : Max Mln Mean

May

255

177

162

128

126

116

103

91

*W

112

121

112

123

162

232

300

320

324

366

410

412

357

281

262

318

302

343

376

434

432

457_

7,790

251

15,450

June

440

38T

301

274

292

*220

135

 *120

144

135

123

112

112

91

100

103

106

109

109

118

115

89

80

64

42

39

34

34

32

28

-

4,085

136

8,100

July

12

17

T2

7.4

4.4

.2

.5

.3

*.l

2.3

.1

.1

.1

.1

.1

.1

.1

.1

72

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

58.6

1.89

116

Aug.

0.1

T7I

.1

.1.1

.1.1 *.l

.1

.1

.1

.1.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.3

.4

.T

.4

.4

5.7

0.18

11

Sept.

 £0.4

* .

* 

-

12.0

.40

24

Ao-ft

Water year : Max Mln Mean Ao-ft

* Discharge measurement made on this day.
224 TULARE LAKE BASIN

Discharge, In cubic feet per second, of Marble Fork Kaweah River at Potwlsha Camp, Calif.,

1950-51 Continued 

1950-51

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

.4

.4

.4

.4

.4

.4

*.3

73

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

221

T.3

3.6

11

27

281.2

9.07

558

Nov.

3.8

3.6

1.4

.9

_._!

.1

.1

*.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

»1,560

3,840

565

366

237

167

136

110

58

e!6

e!2

e9

e41

-

5,128.0

171

10,170

Dec.

e36

e!4

677

*6T5I

225

208

305

193

143

118

103

93

77

149

114

80

64

55

e50

e43

e39

e34

e28

e26

e23

e!9

e!6

elO

e7

e6.5

e6

3,562.5

115

7,070

Jan.

e5

e8

elO

e9.5

e8.5

e6.5

e5

e4

e3.5

e4.5

e3.5

2.5

57?

3.7

3.4

3.4

*2.9

21

22

TT

8.8

11

16

17

20

22

19

13

13

11

7.4

299.3

9.65

594

Feb.

7.8

7.0

7.4

9.9

26

*28

34

36

32

41

41

41

34

31

25

17

17

16

13

11

9.2

9.4

5.9

6.3

6.3

7.2

5.4 772"

_

_

-

532.0

19.0

1,060

Mar.

7.6

6.2

5.4

77T

7.8

*9.4

9.4

11

12

11

11

25

46

55

60

68

64

64

68

68

64

60

64

*64

76

76

74

84

BT

66

53

1,380.9

44.5

2,740

Apr.

51

55

51

464B~

48

49

64

*87

132

162

174

T7¥

162

142

133

110

89

103

91

119

147

145

105

119

87

96

103

91

74

-

3,057

102

6,060

May

68

S?

105

110

105

98

107

123

*135

162

164

128

100

105

96

107

140

193

219

232

229

200

182

250

»339

354

3315

271

232

200

152

5,318

172

10,550

June

107

130

135

123

126

130

138

135

140

127

130

133

*130

121

121

157

T3T

136

120

117

82

64

55

53

51

38

35

26

22

17

-

3,031

101

6,010

July

"7.1 14

5.6

2.6

.2

.1

.T

.1

.1

.1

.1 *.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

32.1

1.04

64

Aug.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

*.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

*.2

.2

.2

.2

.2

5.3

0.17

11

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

-

6.0

0.20

12

Calendar year 1950 : Max - Mln - Mean - Ac-ft -

Water year 1950-51:. Max 1,840 Mln 0.1 Mean 62.0 Ao-ft 44,900

Peak discharge (base, 450 efs).--0et. 27 (12:30 a.m.) 1,250 cfs (6.6 ft); Nov. 18 (12 p.m.) 4,000 

cfs (10.1 ft); Dec. 3 (12 p.m. ) 1,450 cfs (6.96 ft); May 26 (9 p.m.) 568 cfs (4.95 ft). 

* Discharge measurement made on this day.

e Stage-discharge relation Indefinite; discharge estimated on basis of records for Marble Fork 

aweah River No. 3 conduit at Potwlsha Camp, Middle Pork Kaweah River No. 3 conduit near Potwisha

Camp, nmn . and and Middle MldrTIo FnT't Fork JfnwoaVi Kaweah P-l^on River near near* Potwlsha P^-t-wl «hfl Camp. Harnn
TULARE LAKE BASIN 

North Fork Kaweah River at Kaweah, Calif.

225

Location. Lat 36°29', long. 118 0 55', In SE^ sec. 34, T. 16 S., R. 28 E., on left bank 

1.2 miles upstream from Mannlkin Creek, 1.5 miles north of Kaweah, and 3 miles upstream 

from mouth.

Drainage area.--128 sq ml.

Records available.--October 1910 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,080 ft (from topographic map). Prior 

fo Oct. 26, 1933, staff gage at site 1 mile downstream at different datum.

Average discharge.--40 years (1911-51), 97.5 cfs.

Extremes.--Maximum discharge during year, 9,150 cfs Nov. 19 (gage height, 10.85 ft), from 

rating curve extended above 3,200 cfs on basis of slope-area determination of peak flow; 

minimum, 2.0 cfs Sept. 23.

1910-51: Maximum discharge, that of Nov. 19, 1950; no flow for many days during 

July to October 1924.

Remarks.--Records good. Several small diversions above station for irrigation.

1.2

1.3 

1.5 

1.7 

1.9

3.2

4.3

Rating tables, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Sept. 1O-30)

Oct. 1 to Nov

2.1 

2.5 

2.8 

3.2 

3.6

107

180

298

4.0 

4.5 

5.0 

5.6 

6.2

460

725

1,060

1,580

2,220

1.3

1.4

1.5

1.6

Nov. 19 to Sept. 30

3.4 

4.5 

5.8 

7.5

2.2

2, 

2,

29 4.4 

4.9 

5.5 

5.0

600

930

1,450

1,940

7.0 3,150

7.5 3,820

Discharge, in oublo feet per second, water year October 1950 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.

4.5 

4.7

4.8

4.8

4.7

4.7

4.8

4.5

4.1

4.1

4.1

3.8

3.6

376

3.6

3.6

3.7

3.8

3.9

3.9

3.9

3.8

4.1

4.3

4.3

5.4

142

83

17

13

17

381.1

12.3

756

Nov.

17 

14

12

11

10

9.6

9.3

9.1

9.1

9.1

8.8

8.6

97T

14

19

15

15

2,140

5,800

571

310

216

164

134

114

101

90

81

74

92

-

8,086.7

270

16,040

Dec.

105 

82

1,230

~584 1.970

393

49O

338

267

226

202

179

164

223

239

179

157

144

135

125

118

112

106

101

95

92

88

84

81

79

85

8,473

273

16,810

Jan.

72 

75

75

75

75

70

65

63

60

67

74

69

*69

72

75

80

76

222

406

164

135

130

135

132

130

128

122

118

120

122

105

3,381

109

6,710

Feb.

104 

100

98

103

120

124

119

122

116

116

118

148

125

*116

108

101

98

98

92

90

89

93

84

85

86

90

93

89

_

_

-

2,925

104

5,800

Mar.

99 

93

84

96

116

139

132

130

132

122

116

125

148

161

164

*168

164

150

148

144

142

141

139

132

133

*133

133

132

128

125

119

4,088

132

8,110

Apr.

113 

112

109

108

105

109

106

106

109

110

113

112

112

112

116

114

110

106

114

113

104

98

93

93

100

100

*9Z.

\6Z

198

141

-

3,390

113

6,720

May

128 

139

157

173

176

176

164

166

150

141

133

126

125

132

122

112

105

100

96

90

88

86

*84

80

77

71

66

64

62

60

51

3,506

113

6,950

June

56 

52

51

49

48

46

48

46

43

41

38

37

36

34

33

31

30

30

29

30

31

31

30

28

26

26

24

23

22

22

-

1,071

35.7

2,120

July

21 

20

*20

19

19

18

18

17

16

15

15

15

14

14

13

13

13

12

12

12

11

10

10

10

9.9

9.6

9.2

8.8

8.6

8.1

7.7

418.9

13.5

831

Aug.

7^3 

7.2

7.2

7.2

7.3

6.8

6.8

6.3

6.3

6.1

6.0

5.8

5.5

5.4

5.2

4.9

4.1

4.2

4.0

3.8

3.7

3.8

3.8

4.2

4.6

4.3

4.3

3.8

3.8

4.2

4.4

162.3

5.24

322

Sept.

4.8 

4.9

4.3

4.8

4.5

4.4

4.4

4.3

4.1

4.1

4.0

3.8

4.0

4.0

4.0

3.8

3.8

3.8

4.1

4.3

4.3

3.8

5.5

4.0

4.5

4.5

4.5

4.6

4.9

5.0

-

127.8

4.26

253

Calendar year 1950 : Max 3,8OO Mln 2.0 Mean 108 Ac-ft 78,490

Water year 1950-51 : Max 3, 8OO Mln 3.5 Mean 98.7 Ao-ft 71,420

Peak discharge (base. 700 cfs) . Nov. 19 (l a.m.) 9,150 cfs (10.85 ft); Dec. 4 (3 a.m.) 4,230 cfs 

(7.79 ft); Jan. 18 (12 p.m.) 1,220 cfs (5.24 ft). 

* Discharge measurement made on this day.
226 TULARE LAKE BASIN

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 Fork and 3 miles southwest of Three Rivers post office.

Drainage area.--520 sq mi.

Records available.--April 1903 to September 1951.

Gage.--Water-stage recorder at present site since Jan. 31, 1936. Altitude of gage is 620

 ft (from topographic map). 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, at datum 2.68 ft higher. Aug. 25, 1939, to July 9, 1951, at 

datum 1.68 ft higher.

Average discharge. 48 years, 561 cfs.

Extremes.--Maximum discharge during year, 52,000 cfs Hoy. 19 (gage height, 17.8 ft, from

 i'loodmarks), from rating curve extended above 11,000 cfs on basis of slope-area determination of peak flow; minimum, 18 cfs Oct. 8 (gage height, 0.92 ft).

1903-51: Maximum discharge, that of Nov. 19, 1950; minimum, 8.5 cfs Sept. 19, 1934.

Remarks.--Records good except those above 6,000 cfs and for periods of no gage-height rec-

 orcT~or indefinite stage-discharge relation, which are fair. Diversions above station 

for irrigation and power development on Middle and East Forks.

Revisions (water years).--W 881: 1904-9 (yearly summaries only). W 1121: 1918-21.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Tota:

Mean

Ac- ft

Oct.

28

28

29

28

27

28

27

28

26

26

26

24

22

22

21

21

21

a21

a22

a22

a22

a22

a24

a26

a26

a30

a400

a200

a!20

alOO

a!70

1,637

52.8

3,250

Nov.

al60

a!40

a!20

allo

alOO

a90

a80

a70

a72

a78

75

69

68

98

102

100

109

7,900

*al6.000

a4,200

a2,500

al,700

al,200

al,000

a900

eg750

a700

eg600

a550

a600

-

40,241

1,341

79,820

Dec.

eg700

a600

a3,000

*a8.000

eg2,700

egl,900

a2,300

al,6OO

al,400

gl,200

gl, 120

gl,010

g932

gl,080

gl,200

g932

g824

g757

g696

g667

g641

g592

a560

a540

a530

g514

g479

g462

g462

a470

a490

38,358

1,237

76,080

Jan.

a450

g429

429

419

410

394

384

375

359

378

410

384

*356

359

365

378

365

473

1.100

547

482

482

518

503

503

496

479

462

462

469

416

14,036

453

27,840

Feb.

416

400

397

410

452

479

472

482

465

476

482

584

500

*479

452

423

407

403

381

394

371

378

346

350

353

371

391

371

-

_

-

11,885

424

23,570

Mar.

407

387

356

394

*442

525

493

489

496

469

442

469

547

588

610

*631

631

606

610

a600

a650

a650

a620

a580

a600

*602

597

625

641

588

543

16,888

545

33,500

Apr.

521

521

510

489

486

500

500

518

592

757

939

1,030

1,070

1.100

1,030

969

859

763

817

751

796

888

962

824

852

744

*725

1,000

1,080

845

23,438

781

46,490

May

770

789

932

939

954

910

866

969

991

1,120

1,170

999

874

881

845

*874

999

1,250

,360

,460

,500

,390

* ,240

,420

,740

.870

,830

1,590

1,400

1,280

1,100

36,312

1,171

72,020

June

852

866

874

810

803

796

831

824

796

751

763

763

757

776

796

866

796

719

725

719

610

562

518

518

486

459

446

419

407

384

-

20,692

690

41,040

July

378

350

*334

310

284

261

247

236

228

221

215

207

198

182

174

166

179

184

221

179

157

145

*136

132

124

115

107

102

98

93

85_

6,048

195

12,000

Aug.

8Q

W

76

74

71

68

66

64

83

61

59

56

55

54

53

52

55

53

52

*49

49

48

46

46

47

45

42

41

41

43

47

1,735

56.0

3,440

Sept,

47

IT

47

45

43

43

43

38

38

38

37

35

36

36

37

36

36

36

36

36

35

35

34

32

32

32

32

33

36

36

-

1,127

37.6

2,240

Calendar year 1950: Max 16,000 Mln 21 Mean 621 Ao-ft 449,300

Water year 1950-51: Max 16,000 Mln 21 Mean 582 Ao-ft 421,300

Peak discharge (base, 2.200 cfs). Oct. 27 (time unknown) 2,590 cfs (5.92 ft); Nov. 19 (about 3:30 

a.m.) 52,000 cfs (17.8 ftJ; Dec. 4 (time and discharge unknown); Dec.7 (time and discharge unknown); 

May 26 (11:30 p.m.) 2,480 cfs (5.78 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of unpublished records for station at McKay 

Point.

e Stage-discharge relation Indefinite; discharge estimated1 on basis' of unpublished records for 

station at McKay Point.

g Computed from once- or twice-daily staff-gage readings.
TULARE LAKE BASIN

Sand Creek near Orange Cove, Calif.

Location. Lat 36°37'35", long. 119°14 I 45", In NWy sec. 15, T. 15 S., R. 25 E., on right 

bank- 3.8 miles east of Orange Cove.

Drainage area.--32 sq mi, approximately.

Records available. October 1944 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 490 ft (from topographic map).

Average discharge.--? years, 0.88 cfs.

Extremes. Maximum discharge during year, 158 cfs Nov. 19 (gage height, 2.87 ft); no flow 

ror several months.

1944-51: Maximum discharge, 410 cfs Feb. 2, 1945 (gage height, 4.00 ft), from rating 

curve extended above 130 cfs on basis of slope-area determination of peak flow; no flow 

for several months each year.

Flood of Mar. 9, 1943, estimated at 1,000 to 1,200 cfs by Alta Irrigation District.

Remarks.--Records fair. No regulation or diversion above station. 

Cooperation.--Four discharge measurements furnished by Bureau of Reclamation.

Rating table, water year 195O-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Mar. 22 to Apr. 28)

0.0 

.1 

.2 

.3

o.o 

.1

.6

0.4 

.5

1.1 

1.7 

3.6 

6.3

1.2 

1.6 

2.0

Discharge, In cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

C

0

0

0

0

0

0

0

0

0

0

0

o

0

o

0

0

*42

 .4

0

o

0

0

o

0

0

0

0

o42.4

1.41

84

Dec.

0

C

22

*42

*3.3

.9

2.4

.8

.3

.2

.1

.1

.1

.4

.6

.3

.2

.2

.2

.1

.1

.1

.2

.2

.2

.2

.1

.2

.2

.2

.3

76.2

2.46

151

Jan.

0.272"

.2

.2

.2

.2

.2

.2

.3

1.5

.1

.2

.3

.O

.1

.7

.3

.5

~.3

.6

.2

.9

.7

a .6

a .5

a .4

a .3

a .6

a .5

* .4

53.1

1.71

105

Feb.

.2

.1

.1

.1

.1

.5

.2

"75.0

.O

.4

.8

271

.8

.7

.5

.4

.4

.2

.2

.2

.2

.2

.0

.O

.3

.1

.4

-

-

-

47.5

1.70

94

Mar.

*2.7

75

.6

.8

.7

.2

.9

.9

.9

.6

.5

.6

.6

.6

.4

.3

.2

.0

.0

.1

.0

.0

.8

.8

.8

.8

.6 78"

.6

.7

.6

42.2

1.36

84

Apr.

0.5

*.5

.6

.8

.6

.5

.5

.5

.5

.4

.4

.2

.1

.1

.1

.1

.1

.1

.3

1.0

.5

.2

o'

.5

.3

1.2

5.0

T75

-

17.5

0.58

35

May

0.9

* .6

.5

.4

.4

.4

.4

.3

.3

.2

.2

.1

7T

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

6.6

0.21

13

June

0.1 -7T

.1

.1

.1

.1

.1

0

15

0

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

o0.7

0.02

1.4

July

C)

0

0

0

Aug.

0

0

0

Sept.

0

0

O

Calendar year 1950: Max 42 Mln 0 Mean 0.38 Ac-ft 275

Water year 1950-51 : Max 42 Mln 0 Mean 0.78 Ac-ft 567

Peak discharge (base. 10 cfs). Nov. 19 (7:30 a.m.) 158 cfs (2.87 ft); Dec. 4 (2:30 a.m.) 129 cfs 

(2.68 ft); Jan. 11 (7 p.m.) 12 cfs (1.19 ft); Jan. 18 (11 p.m.) 23 cfs (1.56 ft); Feb. 12 (Z a.m.) 

23 cfs (1.56 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

stations on nearby streams.
TOLARE LAKE BASIN

South Pork Kings River near Cedar Grove, Calif.

 

Location. .--Lat --36°48'25", long. 118°44'55", in NW£ sec. 8, T. 13 S., R. 30 E., on right 

3.3 mile downstream from Grizzly Creek and 4.5 miles west of Cedar Grove.

Drainage area.--409 sq mi.

Records available.--November 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,000 ft (from topographic map).

Extremes.--Maximum discharge during the period November to September, 10,000 cfs Nov. 19 

(gage height, 13.80 ft), from rating curve extended above 4,100 cfs on basis of slopearea determination of peak flow; minimum, 59 cfs Sept. 28.

Remarks.--Records good except those for periods of ice effect, which are fair. No storage 

or diversions above station.

Rating table, Nov. 17, 1950, to Sept. 30, 1951, except periods of ice 

effect (gage height, in feet, and discharge, in cubic feet per second)

8.5 

9.0

359

540

835

1,200

Discharge, in ^ubic feet per second, Nov

10.0

11.0

12.0

13.0

1950 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.

_

_

_

-

-

_

_

_

_

-

.

_

_

_

-

_

120

2,120

*5,470

1,840

1,570

1,090

825

689

614

555

510

476

451

487

-

_

_

-

Dec.

472

408

1,220

1,190

816

711

1,090

920

794

702

644

604

554

590

575

520

486

463

440

418

400

38B

380

375

367

351

332

325

329

314

293

17,471

564

34,650

Jan.

250

230

250

250

230

220

220

210

200

210

220

170 19"0

200

200

190

180

210

200

200

220

230

240

250

250

*240

240

230

230

210

190

6,760

218

13,410

Feb.

190

225

228

231

266

270

279

293

286

300

311 ?rr

300

293

283

266

263

260

230

230

220

210

190

190

200

200

200

170

_

_

-

6,895

246

13,680

Mar.

190

180

160 T9~0

214

231

222

216

219

211

208

222

256

270

276

279

293

296

311

340

351

355

367

388

432

454

468

500

525

477

436

9,537

308

19,160

Apr.

422

432

414

396

388

388

400

445

565

764

970

1,160

1,250

*1,260

1,160

1,200

1,090

928

949

894

991

1,100

1,220

1,120

1,080

935

984

1,090

977

882

-

25,874

862

51,320

May

822

802

861

835

835

802

796

BTF

935

1,180

1,400

1,180

1,020

970

900

991

1,340

1,740

2,000

2,240

2,340

2,240

2,210

2,660

3,350

3,950

*4,030

3,510

3,040

2,620

2,170

54,597

1,761

108,300

June

* ,720

,720

,830

,760

,790

,870

,990

,990

,980

,730

,830

,940

,160

,220

,400

,740

,650

,340

,290

,530

,110

,800

,720

,540

,590

1,610

1,530

1,470

1,370

1,330

-

57,550

1,918

114,100

July

1,320

1,200

1,150

1,010

881

828

783

764

770

776

757

731

687

657

628

640

*705

802

816-

790

675

596

540

500

463

422

396

384

380

400

367

21,818

704

43,280

Aug.

348

379

311

300

283

263

234

222

208

200

194

182

172

164

160

160

164

167

169

162

160

153

148

144

138

130

122

118

*112

110

106

5,833

188

11,570

Sept.

103

ToO

96

93

88

86

83

80

77

75

74

74

72

71

71

68

68

68

69

69

71

69

68

64

63

60

60

59 ID62

-

2,221

74.0

4,390

Calendar year : Max Hln Mean Ac-ft

Water ryear : Max mMln pun Mean mAc-ftCIL

;ak discharge (base, 5,000 cfs).--Nov. 19 (2 a.m.) 10,000 cfs (13.80 ft); May 26 (12 p.m.) 5,640 

(12.20 ft); June 16 (1 a.m.) 3,240 cfs (10.85 ft); June 20 (2 a.m.) 3,080 cfs (10.73 ft). 

- Discharge measurement made on this day. 

Note.--Stage-discharge relation affected by ice Jan. 1 to Feb. 1, Feb. 19 to Mar. 4.
TULARE LAKE BASIN 229

Kings River above North Fork, Calif.

Location (revised) . Lat 36=52', long. 119°07', in NE-J- sec. 27, T. 12 S., R. 26 E. , on 

lert Dank at Kogers Crossing, 1 mile upstream from North Fork and 2.6 miles south of 

Balch Camp.

Drainage area. 956 sq mi.

Records available.--March 1927 to December 1928, October 1931 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,008 ft (from topographic map). March

 T927 to December 1928, at site 0.5 mile downstream at different datum.

Average discharge.--21 years (1927-28, 1931-51), 1,397 cfs.

Extremes.--Maximum discharge during year, 44,000 cfs Nov. 19 (gage height, 12.23 ft, from 

rioodmark in gage well), from rating curve extended above 11,000 cfs on basis of 

velocity-area studies; minimum, 115 cfs in October.

1927-28, 1931-51: Maximum discharge, that of Nov. 19, 1950; minimum, 79 cfs Oct. 

13, 1934.

Remarks. Records excellent except those for periods of no gage-height record, which are

 poor. Plow slightly regulated by small reservoirs above station on Ten Mile and Mill 

Flat Creeks.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 18

1.0

1.4

108

144

212

330

2.2 

3.0 

3.8

483

684

1,240

2,030

1.0 

1.3 

1.6 

2.0 

2.5

133

202

290

446

710

Nov. 19 to Sept. 30

3.0 

3.5 

4.0 

4.5 

5.0

1,090

1,570

2,140

2,850

3,840

5.5 

6.0 

7.0 

7.6 

8.2

5,200

6,860

10,600

13,000

15,800

Discharge, In cubic feet per second, water year October 1950 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.

152

142

138

134

153

156

153

129

125

125

120

120

120

120

120

120

120

120

120

120

120

120

120

120

130

140

500

270

250

500

4,967

160

9,850

Nov.

370

510

280

280

290

280

270

250

230

250

220

210

'STo 190

270

250

260

2,000

*15,600

4,600

5,800

2,700

2,000

1,600

1,400

1,500

1,200

1,100

1,000

1,100

-

45,780

1,459

86 , 840

Dec.

1,200

980

4,900

6,100

2,500

2,000

5,200

2,800

2,100

1,800

1,600

1,400

1,500

1,800

1,900

1,400

1,500

1,200

1,100

1,000

980

950

920

880

860

800

750

740

730

72-5 720

50,630

1,633

100,400

Jan.

680

640

680

680

650

620

600

570

540

560

680

700

610

610

610

660

640

760

1,700

840

710

690

750

720

*710

686

674

662

668

656

595

21,551

695

42,710

Feb.

622

590

590

600

680

686

692

723

698

716

742

824 742-

725

692

644

659

622

574

590

574

555

498

513

518

528

548

498

_

_

-

17,619

629

54,950

Mar.

548

525

493

518

612

680

660

650

650

640

630

630

680

*740

800

840

870

860

860

880

950

920

910

950

1,000

1,020

1,060

1,100

1,140

1,100

1,050

24,954

805

49,500

Apr.

1,040

1,010

990

950

950

970

990

1,050

1,200

1,500

2,200

2,600

*2,640

2,700

2,400

2,400

2,200

2,000

2,000

1,900

2,000

2,200

2,200

2,100

2,100

1,900

1,900

2,500

2,400

2,100

-

54,870

1,829

108,800

May

1,900

1,900

2,100

2,200

2,200

2,100

2,100

2,500

2,300

*2,500

2,770

2,450

2,100

1,980

1,870

1,960

2,500

5,200

3,640

5,980

4,160

4,050

5,960

4,420

5,420

6,250

6,790

6,180

5,460

4,760

4,150

105,590

5,542

205,500

June

5,240

 3,110

5,500

5,110

5,110

3,560

5,490

5,470

3,580

5,020

5,110

5,520

5,710

3,960

4,260

4,900

4,730

4,340

4,080

4,760

5,840

5,240

5,000

2,790

2,770

2,940

2,740

2,620

2,440

2,550

-

102,690

3,423

203,700

July

2,560

2,250

2,140

1,950

1,680

1,520

1,440

1,390

1,590

1,590

1,590

1,550

*1,290

1,250

1,180

1,160

1,250

1,560

1,540

1,440

1,250

1,090

976

898

824

742

692

662

659

656

606

39,915

1,288

79,170

Aug.

569

545

523

503

479

446

411

390

370

551

540

525

311

297

287

280

287

290

297

290

287

277

268

261

255

244

232

224

218

216

210

10,281

332

20,390

Sept.

207

200

194

187

182

177

170

166

161

*156

152

150

148

146

146

144

148

148

146

144

144

144

141

139

157

155

133

133

155

155

-

4,644

155

9,210

Calendar year 1950 : Max 15,600 Mln 120 Mean 1,367 Ac-ft 989,900

Water year 1950-51 : Max 15,600 Mln 120 Mean 1,314 Ac-ft 951,000

Peak discharge (base, 6,300 of s). Nov. 19 (about 1 a.m.) 44,000 cfs (12,23 ft); Dec. 5 or 4 (time

and discharge unknown); May 27 (5 a.m.) 8,410 cfs (e.43 ft).

* Discharge measurement made on this day.

Note. --Ho gage-height record Oct. 11 to Nov. 18, Nov. 20 to Jan. 25, Mar. 6 to Apr. 12, Apr. 14 to

May 10; discharge estimated on basis of ranges in stage and/or records for station at Piedra.

256498 O - 53 - 16
230 TULARE LAKE BASIN

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'Wood - 

chuck Creek.

Drainage area.--174 sq mi.

Records available.--August 1921 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 6,143.95 ft above mean sea level, adjustment 

of 1912 (levels by San Joaquin Light & Power Corp.). Prior to Nov. 24, 1922, at site 

1 mile upstream at different datum.

Average d i scharge.--27 years (1921-32, 1933-35, 1937-51), 343 cfs.

Extremes.--Maximum discharge during year, 9,210 cfs Nov. 19 (gage height, 15.20 ft); minimum, 3.9 cfs Sept. 24-27.

1921-51: 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, 0.6 cfs Dec. 30, 1930.

Remarks. Records good. No storage or diversion above station.

Cooperation.--Water-stage recorder graph, furnished by San Joaquin Power Division, Pacific 

Uas & Electric Co., in connection with a Federal Power Commission project.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

2.4 

2.6

3.3

6.0

9.8

16

28

3.4 

3.7 

4.0 

4.5 5.0

120

210

322

6.0

8.0

10.0

13.0

618

1,410

2,870

6,050

Discharge, In cubic feet per second, water year October 1950 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.

5.1

5.6

5.8

5.8

5.7

5.7

5.7

5.6

5.4

5.2

5.1

4.8

4.8

4^6

TTe

4.6

4.8

4.8

4.8

4.8

4.8

4.8

5.1

7.6

7.8

46 

~50 228

40

45

74

616.4

19.9

1,220

Nov.

58

43

43

52

49

41

34

32

30

24

21

18

20

25

22

39

61

2,850

5,550

1,570

1,180

798

578

476

431

380 

327

298

280

327

15,657

522

31,060

Dec.

308

223

1,980

1,260

592

564

1,270

1,070

692

539

474

428

384

529

448

361

322

305

291

267

259

252

241

241

239

222 

200

194

198

192

173

14,718

475

29,190

Jan.

155

171

173

164

153

138

138

126

116

118

126

116

141

136

136

136

134

133

134

155

150

162

202

T92

190

192 

194

175

169

158

143

4,726

152

9,370

Feb.

143

139

148

171

224

228

265

265

252

291

281

279

232

220

202

180

173

169

154

150

150

144

124

136

120

130 

128

126

_

-

5,224

187

10,360

Mar.

131

125

T56~ 118

130

134

130

136

144

133

138

184

252

270

284

298

305

279

305

332

338

325

332

364

422

430 

448

481

178

382

335

8,289

267

16,440

Apr.

338

351

335

317

512

332

396

517

708

914

1,100

1,200

1,220

1, 140

1,060

1,060

921

812

834

776

860

925

925

845

798

679 

729

715

751

649

22,519

 751

44,670

May

642

645

693

708

645

632

655

744

845

978

1,000

823

722

652

669

841

1,090

1,250

1,360

1,410

1,390

1,270

1,200

1,490

1,740

1,810 

1,730

1,510

1,210

1,030

872

32,256

1,041

63,980

June

715

729

769

711

726

740

726

718

669

571

621

649

683

718

758

758

635

645

574

697

533

445

388

385

327

300 

267

232

206

186

-

17,081

569

33,880

July

171

151

136

123

101

86

77

71

67

65

63

57

53

50

45

43

42

59

78

94

58

46

40

34

 30

26 

24

*22

22

20

19

1,973

63.6

3,910

Aug.

17

T6

15

14

13

12

12

11

11

10

9.4

9.0

8.4

7.8

7.6

7.3

7.1

7.4

6.9

6.4

6.2

6.2

6.4

6.5

6.5

6.4 

5.7

5.4

5.2

574

5.6

273.8

8.83

543

Sept.

5.4

5T4

5.4

5.4

5.1

4.8

4.6

4.5

4.4

4.4

4.3

4.3

4.1

4.1

4.1

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

3.9

37?

3.9 

3.9

4.0

4.1

4.1

-

130.1

4.34

258

Calendar year 1950 : Max 5,550 Mln 3.8 Mean 383 Ac-ft 277,500

Water year 1950-51 : Max 5,550 Mln 3.9 Mean 338 Ac-ft 244,900

Peak discharge (base, 1,900 efs). Nov. 19 (2 a.m.) 9,210 cfs (15.20 ft); Dec. 3 (6 p.m.) 4,000 

cfs (11.18 ft); May 26 (9 p.m.) 2,720 cfs (9.83 ft). 

* Discharge measurement made on this day.
TULARE LAKE BASIN 231

Kings River at Pledra, 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 Pledra, 2 miles downstream from Mill 

Creek, and 12 miles northeast of Sanger.

Drainage area.--1,694 sq ml.

Records available.--September 1895 to September 1951. Prior to Oct. 1, 1924, published 

as "near Sanger".

Gage.--Water-stage recorder at present site since Feb. 7, 1931. Altitude of gage is 500 

 Tt (from topographic map). Sept. 3, 1895, to Apr. 17, 1903, staff gage; Apr. 18, 1903,

to Jan. 25, 1914, water-stage recorder; Jan. 30, 1914, to Jan 14, 1920, staff gage;

and Jan. 15, 1920, to Feb. 6, 1931, water-stage recorder, at site 1,000 ft upstream at

different datum.

Average discharge.--56 years, 2,285 cfs.

Extremes. Maximum discharge during year, 91,000 cfs Nov. 19 (gage height, 21.0 ft), from 

rating curve extended above 30,000 cfs on basis of slope-area determination of peak 

flow; minimum, 143 cfs Oct. 24 (gage height, 0.80 ft).

1895-1951: Maximum discharge, that of Nov. 19, 1950; minimum, 67 cfs Oct. 3, 1924.

Remarks. Records excellent. Flow slightly regulated by small reservoirs on Ten Mile and 

Mill Flat Creeks, and "by power plant on North Fork.

Cooperation.--Seven discharge measurements and assistance in collecting gage-height record furnished by Kings River Water Association.

Revisions (water years). W 831: 1932-33(M), 1935-36(M). W 881: 1896-1909 (yearly summaries only).

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Dot.

178

178

171

158

164

155

154

151

157

154

154

151

148

148

148

145

146

148

148

148

145

145

145

*145

157

158

1.060

700

416

378

450

7,059

228

14,000

Nov.

550

458

409

406

420

406

378

353

330

321

300

282

267

303

384

321

376

13,300

*51.600

10,700

7,900

5,350

3,730

2,920

2,480

2,210

1,930

1,730

1,580

*1,660

-

113,354

3,778

224,800

Dec.

2,070

*1,580

13,200

*18.400

5,990

4,240

7,060

*6,210

4,580

3,590

3,140

2,890

2,600

3,530

3,700

2,780

2,470

2,290

2,150

1,980

1,880

1,780

1,720

1,640

1,600

1,560

1,460

1,380

1,370

1.550

1,350

111,540

3,598

221,200

Jan.

1,230

1,150

1,220

1,210

1,160

*1, 100

1,050

990

955

*976

1,210

*1,250

1,080

1,080

1,080

1,160

1,120

1,440

5.450

1,770

1,590

1,470

1,590

1,540

1,490

1,470

1,440

1,360

1,390

1,400

*1,260

41,661

1,544

82,650

Feb.

1,250

1,200

1,150

1,170

1,420

1,560

1,490

1,590

1,490

1,540

1,590

1.920

1,660

1,520

1,420

1,550

1,270

1,250

*1,190

1,170

1,120

1,110

1,050

985

1,000

1,020

1,120

1,060

_

_

-

56,585

1,507

72,560

Mar.

1,120

1,080

997

1,060

1,500

1,490

1,450

1,530

1,560

1,520

1,240

1,250

1,460

1,640

1,680

J.,700

1,740

1,690

1,680

1,740

1,800

1,790

1,780

1,810

1,950

2,030

2,070

2,170

*2,2BO

2,100

1,880

49,967

1,612

99,110

Apr.

1,800

1,790

1,770

1,700

1.640

1,710

1,770

1,930

2,500

3,010

5,750

4,440

4,650

4.740

4,570

4,500

4,110

3,510

3,560

5,560

3,440

5,770

*5,880

5,750

3,700

*3,240

3,150

3,780

3,940

3,390

96,450

3,215

191,500

May

5,140

*5.050

5,520

5,460

5,470

3,180

3,140

3,520

5,470

5,980

4,570

4,140

3,560

*3,2BO

5,160

5,270

5,990

4,950

*5,760

6,490

6,750

6,660

6,080

6,820

8,260

*9,590

10,000

9,510

7,920

6,710

5,700

160,480

5,177

518,500

June

4,550

4,250

4,440

4,200

4,140

4,410

4,570

4,550

4,580

4,040

3,990

4,180

4,550

4,860

5,170

5.940

5,760

5,370

4,990

5,460

4,810

4,100

3,650

3,490

3,310

5,390

3,240

3,070

*2,890

2.750

128,640

4,288

255,200

July

2.710

2,540

2,450

2,260

1,980

1,770

1,640

1,570

1,550

1,560

1,550

1,510

1,440

1,370

1,310

1,280

1,300

1,560

*1,690

1,610

1,460

1,250

1,100

1,000

922

854

776

752

715

698

_693

44, 850

1,446

88,920

Aug.

645

600

575

556

533

502

466

438

414

*390

371

360

342

325

318

305

302

312

318

325

508

505

292

*289

283

275

261

245

237

232

227

11,551

366

22,510

Sept.

227

222

216

206

201

196

192

187

184

182

173

171

171

*169

164

164

158

162

162

160

160

160

160

*156

152

152

150

152

150

152

-

5,211

174

10,540

Calendar year 1950: Max 51,500 Mln 14S Mean 2,350 Ao-ft 1,702,000

Water year 1950-51: Max 51,500 Mln 14S Mean 2,211 Ao-ft 1,501,000

Peak discharge (base, 8,500 cfs). --Nov. 19 (3 a.m.) 91,000 cfs (21.0 ft): Dec. 4 (3 a.m.) 35,800

cfs (15.0 ft); Dec. 7 (8:30 a.m.) 8,530 cfs (8.51 ft); May 27 (5 a.m.) 12,300 cfs (9.89 ft).

* Discharge measurement made on this day.
232 TD1ARE LAKE BASIN

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

Location. Lat 36°12'55", long. 120°28'10", on left bank 130 ft downstream from highway

 Bridge, on line between SW-p and SE£ of sec. 5, T. 20 S., R. 14 E., 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 (revised). 

Records available.--October 1949 to September 1951.

Cfage.--water-stage recorder. Altitude of gage is 1,100 ft (from topographic map). 

Extremes.--Maximum discharge during year, 39 cfs Oct. 27 (gage height, 1.88 ft); no flow

ror several months.

1949-51: Maximum discharge, 61 cfs (revised) Feb. 6, 1950 (gage height, 1.96 ft);

no flow for several months each year.

Revisions. The maximum discharge for the water year 1950 has been revised to 61 cfs

Feb. b, 19bTJ (gage height, 1.96 ft), superseding figure published in Water-Supply

Paper 1181. 

Remarks. Records fair except those for periods of fragmentary or no gage-height record,

wnTch are poor. 

Revisions.--Revised figures of discharge, in cubic feet per second, for the water year

 19611, superseding those published in Water-Supply Paper 1181, are given herewith:

Mar. 24 .......... .6

Note. No flow for all other days during water year.

Peak discharge (base, 40 cfs).--Feb. 6 (7 a.m.) 61 cfs (1.96 ft).

Month

September .....................

Water year 1949-50. .........

Cfs-days

20.1 

1.5 

1.6 

.3

23.5

Discharge in cfs

Maximum

16 

.9 

1.5 

.3

16

Minimum

0 

0 

0 

0

0

Mean

0.72 

.05 

.05 

.01

.06

Runoff in 

acre-ft

40 

3.0 

3.2 

.6

47

Rating table, water year 1950-51 (gage height, In feet,

and discharge, in cubic feet per ond)

1.0

1.1

1.2

1.3

.2

.5

1.5

1.4

1.5

1.6

1.7

Discharge, In cubic feet per second, water year October 1950 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.

0

C

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

9.3

.1

.1

0

0

10.5

0.34

21

Nov.

(»)

(*)

-

0

0

0

Dec.

0

C

0

f4.6

fO

f3.5

*f8.3

rn:.1

0

0

0

f .6

1.2

.3

.2

.2

.1

.1

o

0

0

0

0

0

0

0

0

0

0

20.6

0.66

41

Jan.

0

0

0

0

0

0

0

0

0

f2.4

fl.8

1.7

1.0

* . 6

1.5

.8

.4

.1

0

0

0

o

0

0

o

0

0

0

1.0

.5

.2

12.0

0.39

24

Feb.

0.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.5

TS

.4

1.0

.5

*0

_

_-

4.3

0.15

8.5

Mar.

0.1

o'

V

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

0.01

0.4

Apr.

(*)

0

0

0

May

(*)

0

0

0

June

0

0

0

July

0

0

0

Aug.

O

0

0

Sept.

0

0

0

Calendar year 1950: Max 16 Mln 0 Mean 0.15 Ac-ft 109

Water year 1950-51: Max 9.3 Mln 0 Mean 0.13 Ac-ft 95

Discharge measurement made on this day. 

f Fragmentary gage-height record; discharge computed from partly estimated gage heights. 

Note. No gage-height record Jan. 15 to Feb. 27j discharge estimated on basis of high-water mark 

in gage well, weather records and information from local residents.
SAN JOAQUIN RIVER BASIN 233

Florence Lake near Big Creek, Calif.

Location. Lat 37° 17', long. 118°58', in SEij sec. 36, T. VS., R. 27 E., in gatehouse of

Ward, tunnel intake, near dam on South Pork San Joaquin River, 16 miles northeast of

town of Big Creek.

Drainage area. 171 sq. mi.

Records available.--November 1925 to September 1951.

Gage.--Water-stage recorder. Datum of gage is mean sea level (levels by Southern Cali-

 Fornia Edison Co.).

Extremes. Maximum contents during year, 65,200 acre-ft June 24-25; maximum elevation.

 7732F.29 ft June 25; minimum contents, 198 acre-ft Nov. 12 (elevation, 7,223.96 ft). 

1925-51: Maximum contents, 65,700 acre-ft July 16, 1935 (elevation, 7,328.8 ft); 

no available contents Oct. 2-4, 1926, Nov. 30 to Dee. 2, 1927.

Remarks. Lake is formed by multiple-arch concrete dam; storage began in April 1925. Usable 

capacity, 64,400 aere-ft between elevations 7,220.9 ft (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., obtained in 

connection with a Federal Power Commission project.

Contents, in acre-feet, water year October 1950 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

Oct.

7,940

7,100

6,200

5,340

4,470

3,600

2,770

2,130

1,550

1,050

850

899

947

991

1,000

991

977

960

943

926

907

887

870

863

852

889

963

799

537

342

258

Nov.

230

222

222

223

222

218

216

2S7

344

258

209

198

199

199

203

217

222

1,700

2,680

4,030

5,310

5,980

6,480

6,950

7,380

7,760

8,110

8,430

8,730

8,540

-

Dec.

7,550

6,970

8,030

8,980

9,620

9,670

9,800

10,300

9,840

9,240

8,590

7,920

7,170

6,560

5,830

5,050

4,180

3,330

2,510

1,800

1,230

792

610

590

576

534

466

417

382

367

352

Jan.

358

362

352

340

325

320

318

310

308

308

307

311

318

318

315

312

312

310

323

342

341

366

361

354

352

350

347

338

338

326

337

Feb.

324

321

318

323

341

344

361

362

356

363

362

364

359

350

338

333

327

321

318

314

309

300

303

300

299

296

295

301

_

-

-

Mar.

298

296

298

298

308

319

315

315

314

311

312

323

336

338

340

338

336

338

348

360

363

362

367

384

404

404

410

424

424

396

384

Apr.

382

380

375

386

392

403

413

447

544

700

833

927

971

971

934

938

856

767

749

718

743

799

840

811

782

726

735

775

772

740

-

May

698

679

670

627

598

574

569

602

701

896

991

877

783

736

717

842

1,200

1,970

3,100

4,780

6,480

7,760

9,530

11,800

15,000

18,700

22,500

25,900

28,60O

30,800

32,400

June

33,500

34,600

35,800

37,000

38,200

39,700

41,100

42,600

44,000

45,200

46,600

48,100

50,100

52,600

55,200

57,000

58,000

58,700

59,400

62,000

64,500

64,600

65,100

65,200

65,200

65,100

64,800

65,000

64,900

65,100

-

July

64,600

64,500

64,400

64,600

64,200

64,200

64,300

64,300

64,200

64,300

64,300

64,300

64,200

64,100

64,000

64,100

64,300

64,100

63,800

63,800

63,800

63,900

64,000

64,100

64,100

64,100

64,200

64,200

64,200

64,100

64,000

Aug.

63,800

63,500

63,300

62,900

62,400

61,800

61,200

60,500

59,700

59,000

58,300

57,500

56,700

55,800

54,900

54,100

53,200

52,400

51,600

50,800

50,100

49,300

48,600

47,800

47,100

46,300

45,500

44,700

43,900

43,100

42,400

Sept.

41,500

40,600

39,800

38,900

38,000

37,200

36,300

35,400

34,500

33,600

32,700

31,800

30,900

29,900

29,000

28,100

27,200

26,300

25,300

24,300

23,400

22,400

21,500

20,500

19,600

18,600

17,700

16,800

16,000

15»300

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31. ...................

Calendar year 1950 .......

Sept .30. ...................

Water year 1950-51 . ......

Elevation 

(feet)t

,225.72

_

7,303.04

7,266.13

-

Contents 

(acre-feet)

8,540

352

.

64,000

42,400

15,300

-

Change In contents 

during month 

(acre-feet)

-8,420

+8,280

-8,190

+ 145

-15

-36

+356

+31,700

-1,100

-21,600

-27,100

+6,620

t Elevation at 12 p.m.
234 SAN JOAQUIN RIVER BASIN

Ward tunnel at intake, Calif.

Location (revised). Lat 37°16',' long. 118°58', in NWij sec. 1, T. 8 S., R. 27 E., in gatehouse~at entrance to tunnel.

Records available.--April 1925 to September 1951.

Gage.--Water-stage recorders, concrete control, and venturi meter. Datum of gage is 

7,213.89 ft above mean sea level (levels by Southern California Edison Co.7.

Average discharge.--25 years (1925-31, 1932-51), 261 cfs.

Extremes.--Maximum daily discharge during year, 1,430 cfs June 18, 19; minimum daily, 0.2 

 el's Nov. 9, 20-29.

1925-51: Maximum daily discharge, 1,990 cfs Apr. 30, 1926; no flow at times.

Remarks. Records excellent except those for periods of no gage-height record, which are 

good. Ward tunnel diverts from Florence Lake, a reservoir on South Fork San Joaquin 

River, to Huntington Lake for use in Big Creek power plants.

Cooperation. Water-stage recorder graph and rating table for venturi meter, furnished by 

Southern California Edison Co., obtained In connection with a Federal Power Commission 

project.

Discharge, In cubic feet per second, water year October 1950 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.

386

443

466

448

431

413

389

366

330

268

126

.3

.3

.3

17

27

27

27

26

26

26

26

25

25

25

24

25

120

168

133

93

4,906.9

158

9,730

Nov.

61

50

46

46

47

45

43

15

68~.2

53

34

32

32

27

40-

45

149

454

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

304

-

1,593.2

53.1

3,160

Dec.

562

544

384

.5

^4.

372

609

22T

595

587

576

564

576

574

580

572

564

544

542

508

437

358

218

136

133

136

137

129

119

108

95

11,480.9

370

22,770

Jan.

82

93

97

94

86

78

76

76

68

71

75

67

74

79

81

80

79

78

76

91

101

106

112" 114

110

110

109

102

102

95

89

2,751

88.7

5,460

Feb.

91

86

84

86

94

101

allO

al20

113

119

121

120

111

107

104

96

91

89

80

80

78

76

64

a72

68

70

70

67

_

.

-

2,568

91.7

5,090

Mar.

72

68

67

70

70

a85

a81

77

81

76

74

78

92

97

100

100

99

97

al03

allO

119

118

116

125

a!45

a!50

154

163

177

162

140

3,266

105

6,480

Apr.

134

137

132

119

al24

a!25

155

174

214

306

425

523

570

602

576

574

521

443

405

380

376

410

457

457

435

395

381

410

419

388

-

10,767

359

21,360

May

366

339

342

318

296

274

260

270

312

430

572

542

462

400

371

398

562

545

453

443

441

444

406

466

457

450

445

431

433

418

423

12,769

412

25,330

June

426

428

433

436

440

443

445

448

448

433

428

431

433

436

683

1,090

1,310

1.430

1,430

660

485

773

801

766

830

813

812

281

^i

.9

-

18,273 . 8

609

36,250

July

1.090

944

488

620

806

592

495

569

569

552

552

552

552

552

495

433

478

830

735

586

501

392

341

317

291

250

g5|

235

270

328

326

15,976

515

31,690

Aug.

326

326

326

380

405

435

473

480

478

475

473

471

502

520

516

514

512

510

508

473

452

450

448

445

443

438

436

433

433

433

431

13,945

450

27,660

Sept.

462

473

469

469

469

466

462

460

482

489

489

484

482

480

478

475

471

504

514

510

504

502

495

493

489

484

480

478

410

575

-

14,298

477

28,360

Calendar year 1950: Max 939 Mln o.2 Mean 311 Ac-ft 225,400

Water year 1950-51: Max 1,430 Mln o.'z Mean 308 Ac-ft 223,300

a No gage-height record; discharge estimated on basis of record at outlet.
SAM JOAQUIN RIVER BASIN 235

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, 6 miles upstream from Bear 

Creek.

Drainage area. 171 sq mi.

Records available. December 1921 to September 1951.

Gage. Water-stage recorder, Parshall flume and concrete control. Altitude of gage is 

7,200 ft (from topographic map).

Average discharge.--28 years (1922-31, 1932-51), 292 cfs, combined flow of South Fork San 

Joaquin Hlver and Ward tunnel at intake.

Extremes. Maximum discharge during year, 1,570 cfs June 25 (gage height, 13.09 ft); no 

flow at times November to April.

1921-51: 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.233);

 and~by diversion into Ward tunnel (see preceding page).

Cooperation. Water-stage recorder graph and eight discharge measurements, furnished by

 Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Rating table, water year 195O-51, (gage height. In feet, 

and discharge, In cubic feet per second)

7.9

8.0 

8.3 

8.7 

9.0

2.2 

3.6

9.4

9.5

9.6

9.7

9.8 

10.0

10.5

11.0

11.5

12.0

12.5

240

435

645

895

1,190

Discharge, In cubic feet per second, water year October 1950 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.

4.0 

3.9

3.9

3.8

3.7

3.6

3.6

3.

3.

5.

3. 

3.

3.

3. 

3.

3.

3. 

3.

3.

3.

3.

3.

3.

3.

3.

~4.

3.

3.

3.6

3.5

114.2

3.68

227

Nov.

3.4

3.1

3.1

3.4

3.4

3.1

3.4

3.4

3_^_5

375

3.4 

3.4

3.3

3.4 

2.2

.2

.1 

3.2

1.2

.2

.1

.1

.1

.1

.1

.1

0

0

0

.4

54.9

1.83

109

Dec.

0.1

.1

2.5

.4

.1

.3

.5

.2

.1

.1

.1 

.1

.1

.3

.1

.1

.1 

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

5.6

0.18

11

Jan.

0 

0

0

0

0

0

0

0

0

0

0 

0

0

0 

0

0

0 

0

0

0

0

.1

.1

0

0

0

0

0

0

0

0

.2

0.01

0.4

Feb.

0 

0

0

.1

_.2.

.1

.2

.1

.1

.1

.1 

.2

.1

.1 

.1

0

0 

0

0

0

0

0

0

0

0

0

0

0

_-

1.5

0.05

3.0

Mar.

0

0

0

0

_a

.1.1

.1.1.1

.1 .1.1.1 .1

.1

.1 .1

.1

.1

.1

.1.1.1

.1

.1.1

0

0

.1

0

2.4

0.08

4.8

Apr.

0 

0

0

0

.1

.1

.1

0

1.1

2.3

2^4

1.6

1.0

1.0 

1.0

1.0

1.0 

1.4

1.7

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.9

1.8

1.7

-

34.0

1.13

67

May

1.6 

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.3

tt

1.2

1.1

1.1

1.1

1.3 

1.3

1.3

1.3

1.3

1.3

1.5

1.7

1.8

1.8

1.9

1.9

2.0

2.1

27T

46.7

1.51

93

June

H2.2

2.2

2.3

2.3

2.3

2.4

2.4

2.4

2.4 

2.4

2.5

3.3

3.5

3.2

3.2 

3.2

3.5

3.5

4.1

*573

*149

*404

*399

484

519

703

1.100

897

-

5,285.5

176

10,480

July

200 

7.6

472

31

12

4.1

3.9

4.0

3.9

3.9

3.9 

3.9

3.2

2.7 

2.7

2.7

2.9 

3.4

2.7

2.6

2.6

2.6

3.0

3.5

3.4

3.4

3.5

3.6

3.7

3.5

3.4

809.3

26.1

1,610

Aug.

3.7 

4.1

4.1

4.0

4.0

3.9

3.9

3.9

3.8

3.8

3.8

3.7

3.7

fct

4.2

H4.2

4.2

4.1

4.0

3.8

3.8

3.8

3.8

3.7

3.7

3.9

4.1

4.1

121.8

3.93

242

Sept.

4.1 

4.1

4.1

4.1

4.1

4.1

4.0

4.0

3.9

3.9

3.9 

3.8

3.8

3.8 

5.7

3.7

4.1

4.3

4.3

4.2

4.2

4.2

4.2

4.1

4.1

4.0

4.0

4.0

3.9

3.9

-

120.6

4.02

239

Calendar year 1950: Max 4.4 Min o Mean 1.86 Ac-ft 1,350

Water year 1950-51: Max 1,100 Min o Mean 18.1 Ac-ft 13,090

Discharge measurement made on this day.
236 SAN JOAQUIN RIVER BASIN

Bear Creek near Vermilion Valley, Calif.

Location (revised). Lat 37°SO'10", long. 118°58'30", in SW£ sec. 12, T. 7 S., R. 27 E., 

 on rignt baffle 2 miles upstream from mouth and 4 miles by trail south of Vermilion Valley

Drainage area. 53.5 sq mi.

Records available. November 1921 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 7,400 ft (from topographic map).

Average discharge.--27 years (1922-30, 1932-51), 86.5 cfs.

Extremes. Maximum discharge during year, 970 cfs May 26 (gage height, 6.05 ft); minimum, 

3.8 cfs Oct. 22.

1921-51: Maximum discharge, 1,530 cfs July 21, 1936 (gage height, 6.90 ft); minimum recorded, 1.2 cfs Sept. 29 to Oct. 5, 1924.

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 several discharge measurements, furnished_by 

Southern California Edison Co., obtainec 

project.

Revisions (water years).--W 611: 1922(M).

Rating table, water year 1950-51, except period of ice effect 

(gage height, in feet, and discharge, in cubic feet per second)

3.0

3.1

3.2

4.0 

6.7

3.3

3.5 

4.0

16

35

105

4.5 

5.0 

5.6

200

390

705

Discharge, in cubic feet per second, water year October 1950 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.

6.4

6.0

5.7

5.7

5.4

5.4

5.2

5.2

4.9

4.9

4.7

4.7

4.7

4.7

4.7

4.7

*4.4

4.4

4.2

4.2

tf§

4.0

4.9

5.2

6.0

12

14

14

14

11

199.3

6.43

395

Nov.

18

16

16

17

16

14

14

13

11

9.3

9.3

9.3

9.3

8.5

12

18

16

115

355

188

177

120

89

74

67

61

54

57

49

49

-

1,681.7

56.1

3,340

Dec.

52

49

106

108

94

97

147

115

89

78

70

63

57

60

58

54

50

48

44

44

44

44

43

43

43

41

41

40

35

34

34

1,925

62.1

3,820

Jan.

1-

31

1 -

1

\I "

I'

1,048

33.8

2,080

Feb.

1"

40

32

1

J

_

-

959

34.2

1,900

Mar.

1

(*)

28

29

32

36

35

33

36

33

40

46

46

43

45

53

58

57

57

60

BT

46

44

1,200

38.7

2,380

Apr.

45

48

44

40

43

44

57

74

*103

135

157

"166 173

156

148

143

122

110

117

116

123

130

122

116

104

96

110

118

114

105

3,179

106

6,310

May

94

91

92

86

84

78

76

86

*112

158

166

125

110

102

104

138

200

243

259

312

358

358

368

465

590

683

694

600

510

450

358

8,150

263

16,170

June

306

287

311

275

294

345

358

*363

350

319

345

381

445

515

612

622

546

505

470

584

455

410

386

363

376

*395

400

390

372

*372

-

12,152

405

24, 100

July

368

354

336

275

218

195

188

200

203

203

203

206

193

181

172

176

181

224

203

198

200

160

139

127

114

104

96

92

90

94

88

5,781

186

11,470

Aug.

81

76

71

67

61

56

49

45

43

41

39

36

34

32

31

*31

35

34

34

32

35

33

32

29

27

24

22

20

18

17

16

1,201

38.7

2,380

Sept.

16

16

15

14

13

13

12

12

11

11

11

11

11

11

10

10

10

10

10

*10

10

9.7

9.3

8.9

8.5

8.1

7.8

7.4

7.0

6.7

-

320.4

10.7

636

Calendar year 1950: Max 505 Min 4.0 Mean 84.2 Ac-ft 60,960

Water year 1950-51: Max 694 Mln 4.0 Mean 104 Ac-ft 74,980

Peak discharge (base, 440 efs). Nov. 19 (5 a.m.) 683 cfs (5.56 ft); May 26 (8:30 p.m.) 970 cfs 

(6.05 ft); June 15 (10 p.m.) 772 cfs (5.27 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Jan. 1 to Mar. 12.
SAN JOAQUIN RIVER BASIN 237

Mono Creek near Vermilion Valley, Calif.

location (revised). Lat 37°22'00", long. 118°59i20", in SWi~ sec. 35, T. 6 S., R. 27 E.,

 (unsurveyed), on left bank 1 mile downstream from lower end of Vermilion Valley and 

6 miles downstream from North Fork.

Drainage area.--92.0 sq mi.

Records available. November 1921 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 7,400 ft (from topographic map).

Average discharge. 27 years (1922-30, 1932-51), 147 cfs.

Extremes.--Maximum discharge during year, 1,380 cfs May 27 (gage height, 8.05 ft); mini-

 mum, 16 cfs Oct. 10-23.

1921-51: Maximum discharge, 1,760 cfs June 2, 1938 (gage height, 8.62 ft); minimum, 

6.5 cfs Dec. 22, 1939.

Remarks.--Records good except those for period of ice effect, which are fair. No storage 

or diversion above station.

Cooperation. Water-stage recorder graph and several discharge measurements, furnished by

 Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Revisions (water years). W 1011: 1943.

Rating tables, water year 1950-51, except periods of Ice effect 

(gage height, In feet, and discharge, In cubic feet per second)

Oct. 1 to Nov. 19 Nov. 19 to June 30 July 1 to Sept, 30

4.8

4.9 

5.1 

5.4

5.8 188

6.3 380

6.9 690

5.2 

5.6 

6.1

7.6

137

306

1,090

4.9 17

5.0 26

5.3 71

5.6 137

6.0 266

6.5 495

Discharge, in cubic feet per second, water year October 1950 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.

19

20-

19

18

17

17

17

17

17

16

16

16

16

16

16

16

*16

16

16

16

16

16

16

18

17

19

32

31

32

32

33

599

19.3

1,190

Nov.

32

32

32

32

31

29

26

26

25

21

23

24

22

20

26

33

32

146

666

390

452

312

229

193

171

156

145

132

127

126

3,711

124

7,360

Dec.

127

115

122

183

189

159

229 212"

180

159

148

140

127

132

127

123

113

111

105

100

100

98

98

96

94

94

98

90

86

88

3,941

127

7,820

Jan.

 ,1 "

69

k

> 70

|

J

90

-.

1

1

s 80

J

2,380

76.8

4,720

Feb.

 >

f 75

j

J

> 85

67

.

f 63

[

_

_

-

2,084

74.4

4,130

Mar.

63

. 64

66

70

71

70

73

71

79

86

90

90

94

100

113

115

135

123

127

115

111

2,542

82.0

5,040

Apr.

Ill

113

111

109

111

111

120

140

*173

215

255

286

310

298

286

286

259

240

255

248

259

270

259

251

248

222

226

244

248

226

-

6,490

216

12,870

May

209

202

205

202

198

186

183 186"

212

*259

294

262

240

229

222

251

323

410

470

555

605

615

635

730

866

1,010

1,080

1,050

899

794

675

14,257

460

28,280

June

560

515

525

485

485

540

550

*565

575

530

580

590

670

756

877

940

888

828

730

888

700

620

585

545

565

*570

565

545

*505

480

-

18,757

625

37,200

July

475

450

450

390

336

310

294

298

294

294

294

294

282

266

255

266

266

282

302

302

255

222

205

189

170

156

148

145

140

140

150

8,300

268

16,460

Aug.

125

120

115

111

102

91

83

77

75

71

69

66

64

59

56

*56

62

66

64

61

*59

56

52

51

46

44

42

59

56

56

55

2,089

67.4

4,140

Sept.

34

34

33

32

50

50

29

28

26

26

26

26

26

26

26

26

25

26

26

*26

26

26

25

24

25

25

22

21

21

21

-

795

26.4

1,570

Calendar year 1950: Max 888 Min - Mean 152 Ac-ft 110,000

Water year 1950-51: Max 1,080 Min 16 Mean 181 Ac-ft 130,800

Peak discharge (base. 540 efs). Nov. 19 (6 a.m.) 1,050 cfs (7.50 ft)j May 27 (11:50 p.m.) l,380cfs 

(8.05 ft); June 15 (11:30 p.m.) 1,100 cfs (7.61 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by ice Jan. 1 to Mar. 12.
SAN JOAQUIN RIVER BASIN 

San Joaquin River above Big Creek, Calif.

Location. Lat 37°15'00", long. 119°19'10", in NW£ sec. 11, T. 8 S., R. 24 E., on left bank 

3 miles upstream from Big Creek.

Drainage area.--1,042 sq mi.

Records available.--March 1922 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 2,500 ft (from topographic map).

Average dis charge. 26 years (1925-51, period since diversion began through Ward tunnel), 

1,311 cfs.

Extremes. Maximum discharge during year, 40,500 cfs Nov. 19 (gage height, 22.23 ft), from 

rating curve extended above 14,000 cfs on basis of velocity-area studies; minimum, 80 cfs 

Oct. 12-14, 20-23.

1922-51: Maximum discharge, 52,500 cfs Dec. 11, 1937 (gage height, 24.05 ft), from 

rating curve extended above 14,000 cfs on basis of velocity-area studies; minimum, 52 

cfs Sept. 24, 25, 1931.

Remarks.--Records good. Plow partly regulated by Florence Lake (see p. 233 ) and diversions 

through Wark tunnel (see p. 234 ) beginning in 1925.

Cooperation.--Water-stage recorder graph and twelve discharge measurements, furnished by 

Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Rating tables, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

Oct. 1 to May 27 May 28 to Sept. 30

6.2 

6.5 

7.0 

7.5

110

185

303

8.0

9.0

10.0

11.0

473

955

1,570

2,400

13.0

15.0

17.0

19.0

5,000

9,160

15,420

23,600

6.4 

7.0

81

185

Note. Same as 

preceding table 

above 7.0 ft.

Discharge, In cubic feet per second, water year October 1950 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.

86

89

91 

90

88

88

88

85

83

82

81

80 

W 

81

94

87

81

81

81

80

80

80

80

86

94

108

"575 924

249 

247

#461

4,483

145

8,890

Nov.

389

318

362 

424

382

339

292

267

259

235

200

182 

"2T7 173 

221

244

436

13,200

22,400

8,096

7,490

4,110

2,490

1,930

1,680

1,490

1,300

1,160

1,070 

1,240

-

72,620

2,421

144,000

Dec.

1,320

1,040

12.000 

10,700

3,790

2,790

6,730

10,300

4,650

3,140

2,590

2,260 

1,950 

2,680

2,600

*1,980

1,730

1,600

1,490

1,370

1,300

1,240

1,190

1,150

1,110

1,060

994

960

960 

922

885

88,481

2,854

175,500

Jan.

790

845

850 

835

795

745

720

700

ISo" 650

745

660 

700 

745

735

740

740

1,260

1,200"

900

890

1,000

1.280

1,160

*1,100

1,080

1,060

1,030

994

938

820

27,397

884

54,340

Feb.

860

835

805 

840

1,140

1,120

1,150

1,270

1,160

1,180

1,280

1.400 

1,220 

1,130

1,050

977

944

922

830

855

840

800

*735

760

750

750

750

690

-

-

27,043

966

53,640

Mar.

750

705

636 

750

815

880

810

810

845

805

775

840 

994 

1,000

1,140

1,150

1,200

1,090

1,130

1,200

*1,330

1,260

1,250

1,280

1,410

1,360

1,390

1,420

1,550 

1,340

1,170

33,175

1,070

65,800

Apr.

1,140

1,160

1,110 

1.090

1,140

1,220

1,360

1,450

1,790

2,330

2,580

2,800 

2.920 

2,810

2,440

2,670

2,460

2,010

2,080

2,080

2,190

2,230

*2,110

2,020

1,850

1,690

1,600

2,140

2,040 

1,730

-

58,240

1,941

115,500

May

1,660

1.600

1,690 

2,070

1,950

1,770

1,680

1,810

2,030

2,380

2,660

2,090 

1,790 

1,650

1,610

1,790

2,430

2,880

3,370

3,780

3,950

3,920

3,740

4,220

5,120

5,830

6.020

5)910

*4,860 

4,160

3,430

93,850

3,027

186,100

June

2,640

2,380

2,420 

2,330

2,220

2,390

2,520

2,520

2,500

2.080

2,230

2,380 

2,580 

3,080

3,680

3,980

3,740

3,430

3,000

4.210

3,200

2,760

2,650

2,280

2,480

2,380

2,500

2,300

2,830 

2,650

-

82,340

2,745

163,300

July

2.310

1,680

1,410 

1,640

1,040

890

790

790

790

785

765

*760 

730 

685

645

636

645

700

860

1,160

825

660

570

526

481

435

399

3-79 m365

25,095

810

49,780

Aug.

348 Tm

*312 

300

283

262

239

223

214

212

208

202

194 

187

179

176

177

187

187

185

181

174

168

*161

155

146

139

132

127 

120

118

6,221

201

12,340

Sept.

116

TTs

115 

113

110

108

104

101

98

96

94

94 

94 

93

91

90

88

86

88

91

91

90

90

88

86

85

84

*81"55 

82

-

2,844

94.8

5,640

Calendar year 1950: Max 22,400 Mln 80 Mean 1,453 Ac-ft 1,052,000

Water year 1950-51: Max 22,400 Mln 80 Mean 1,430 Ac-ft 1,035,000

Peak discharge (base. 4,600 cfs). Nov. 19 (2 a.m.) 40,500 cfs (22.23 ft); Dec. 3 {11 p.m.) 26,800 

cfs (19.72 ft); Bee. 8 (8:36 a.m.) 17,200 cfs (17.46 ft); May 28 

20 (8 a.m.) 5,440 cfs (13.25 ft).

* Discharge measurement made on this day.

. . .. , 

(3 a.m.) 7,250 cfa (14.16 ft); June
SAN JOAQUIN RIVER BASIN 

Ward tunnel at outlet, Calif.

239

Location (revised). Lat 37 0 15'20", long. 119 0 09'40", in SW£ sec. 5, T. 8 S., R. 26 E., 

just upstream rrom tunnel outlet at east end of Huntington Lake, 6 miles northeast of 

Big Creek.

Records available.--November 1927 to September 1951.

Gage. Water-stage recorder. Datum of gage is 6,999.00 ft above mean sea level (levels by 

Southern California Edison Co.).

Average discharge.--23 years (1928-51), 442 cfs.

Extremes. Maximum daily discharge during year, 1,880 cfs June 18, 19; minimum daily, 2.0 

cfs Oct. 13.

1927-51: Maximum daily discharge, 2,080 cfs June 21, 1935; minimum daily, 0.4 ofs 

Dec. 7, 1945.

Remarks.--Records good. 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 Joaquln River. See record for Ward tunnel at intake (see p. 234),

Cooperation. Water-stage recorder graph, furnished by Southern California Edison Co., ob» 

tained in connection with a Federal Power Commission project.

Discharge, In cubic feet per second, water year October 1950 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

Ao-ft

Oct.

411

460 

497

T75

459

441

414 

384

349

307

196

20

2T~ 2.0 

38

56

55

54 

54 

53

52

52

52

54

54

55

79

157

235

202

170

5,913.0

191

11,730

Nov.

133

116 

112

113

110

104

99 

77

48

liSI

107

77

76 

71

59

92

109

418 

1.510 

656

676

542

365

297

263

240

218

203

192

445

-

7,632

254

15,140

Dec.

770

719 

733

212

315

594

1,090 

(524

922

872

840

799

790 

793

773

750

737

719 

700 

663

600

516

398

295

290

285

276

264

266

247

214

18,069

583

35,840

Jan.

200

222 

229

218

206

187

188 

182

17O

177

182

167

TS5 

193

191

186

184

184 

181 

210

223

252

'5S5" 285

250

249

244

227

224

210

191

6,459

208

12,810

Feb.

210

199 

198

199

216

233

252 

268

252

274

270

263

250 

247

236

217

213

209 

188 

195

187

182

138

T75

168

171

170

162

_

-

5,942

213

11,790

Mar.

174

165 

T70~ 160

169

195

187 

182

186

174

170

182

210 

223

229

222

229

222 

236 

259

279

270

275

297

341

351

351

367

390 'STS

308

7,518

243

14,910

Apr.

307

317 

307

"2SB" 285

299

340 

404

502

683

865

1,010

1,060 

l/ffSS

981

983

916

812 

795 

766

791

865

880

869

836

757

750

815

81O

750

-

21,080

703

41,810

May

707

658 

670

636

610

569

5TS

651

865

1,070

967

855 

764

7?3

783,

1,060

1.170 

1,080 

1,070

1,060

1,050

1,020

1,080

1,090

1,080

1,080

1,060

1,050

1,030

1,020

27,641

892

54,830

June

1,010

1,020 

1,0§0

1,020

1,020

1,030

1,030 

1,030

1,030

1,020

1,010

1,010

1,020 

1,020

1,180

1,590

1,790

1.880 

1,880 

1,350

1,010

1,340

1,390

1,340

1,390

1,410

1,360

924

513

460

-

35,097

1,170

69,610

July

1,380

1.550 

1,090

1,170

1,380

1,170

1,020 

1,090

1,100

1,080

1,080

1,090 i.oao

1,040

964

808

943

1,290 

1,290 

1,120

1,010

825

725

670

610

540

504

 srr 491

583

561

29,841

963

59,190

Aug.

547

537 

528

564

57i

593

615 

615

605

598

593

588

608 

622

1T7

615

620

622 

617 

581

556

549

542

537

528

520

513

504

499

497

494

17,601

568

34,910

Sept,

516

532 

528

523

518

513

507 

504

523

536

534

531

52? 

524

521

518

513

540 

559 

SBT

547

542

539

534

529

523

518

513

453

408

-

15,629

521

31,000

Calendar year 1950: Max 1,640 Mln 2.0 Mean 535 Ao-ft 387,000

Water year 1950-51: Max 1,880 Mln 2.0 Mean 544 Ao-ft 393,600

Note. Computed from telemark observations made at 4-hour Intervals during periods Dec. 17 to Jan. 

2, Jan. 9-16.
240 SAN JOAQUIN RIVER BASIN

Huntington Lake near Big Creek, Calif.

Location. Lat 37°14', long. 119°13', in SW-j sec. 14, T. 8. S., R. 25 E., in gate tower of 

dam ~I on Big Creek, 2 miles northeast of town of Big Creek.

Drainage area. 79.0 sq mi.

Records available. October 1926 to September 1951. 1913 to 1926 summary of yearly contents 

only, in water-Supply Paper 881.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Southern Cali- 

 Fornia Edison Co.).

Extremes. Maximum contents during year, 89,300 acre-ft June 27 (elevation, 6,950.10 ft); 

minimum, 53,600 acre-ft May 9 (elevation, 6,922.42 ft).

1913-51: Maximum contents, 90,000 acre-ft May 23, 1926 (elevation, 6,950.8 ft); minimum, 1,860 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 

T9I3 and again in 1917. Usable capacity, 89,200 acre-ft between elevations 6,819.9 ft 

(invert of outlet tunnel TJo. 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., obtained 

in connection with a Federal Power Commission project.

Contents, 3n thousands of acre-feet, water year October 1950 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

Oct.

86.7

86.5

86.4

86.3

86.1

86.0

85.8

85.8

85.5

85.1

84.5

83.6

82.6

81.6

81.0

80.2

79.3

78.4

77.6

76.8

76.0

75.5

74.8

74.0

73_3

73.1

72.8

72.7

72.8

72.9

72.6

Nov.

72.3

71.9

71.5

71.1

71.0

70.6

70.2

69.7

69.1

68.6

68.2

68.0

67.6

67.3

66.8

66.5

66.0

70.0

77iO

79.3

81.3

82.4

83.1

83.4

83.7

84.1

84.1

83.9

83.8

84.0

-

Dec.

84.0

84.0

86.6

85.2

83.2

81.9

82.3

81.6

81.6

82.4

82.9

83.1

83.3

83.8

84.1

84.1

84.3

84.3

84.3

84.4

84.7

85.2

85.6

86.0

86.3

86.5

86.5

86.5

86.5

86.5

86.4

Jan.

86.4

86.4

86.4

86.2

86.1

86.1

86.1

86.2

86.1

86.2

86.1

85.9

85.7

85.4

85.1

84.9

84.7

84.6

84.4

84.1

83.9

83.8

83.8

83.7

83.6

83.4

83.4

83.5

82.7

80.4

78.2

Feb.

76.1

73.9

71.9

70.0

69.1

69.0

68.8

68.8

68.7

68.6

68.7

68.7

68.6

68.4

68.3

68.1

68.0

67.9

67.7

67.4

67.1

66.9

66.5

66.1

66.0

66.0

66.1

66.0

_

-

Mar.

66.0.

66.0

65.9

66.0

65.7

65.

65.

64.

64.

64.

63.

63.

63.

62.

62.

62.

62.

62.

62.

62.

62.1

62.0

62.0

62.2

62.3

62.5

62.7

62.9

63.1

63.2

63.2

Apr.

63.2

63.0

62.4

60.9

59.5

58.1

56.9

55.8

55.1

54.9

55.1

55.8

56.7

57.6

58.3

59.0

59.4

59.6

59.8

59.8

59.9

60.4

60.7

60.7

60.6

60.2

59.8

60.0

60.5

60.2

May

59.7

59.0

58.2

57.4

56.5

55.8

54.9

54.1

53.6

53.7

54.7

54.8

54.9

54.4

54.0

54.0

55.1

57.3

59.5

61.7

63.7

65.5

67.2

69.1

71.0

72.8

74.6

75.9

76.5

77.2

77.5

June

77.7

77.9

78.4

78.3

78.1

77.9

77.9

78.1

78.5

79.2

79.7

80.4

81.0

81.7

82.7

84.2

86.2

87.2

87.8

88.0

87.8

88.2

88.5

88.8

89.0

89.2

89.3

89.2

89.0

88.5

July

88.7

89.1

89.1

89.0

89.2

89.1

89.0

89.1

89.0

89.0

89.0

89.0

89.0

88.9

88.8

88.9

88.9

88.7

88.6

88.6

88.5

88.6

88.8

89.0

89.0

88.9

88.7

88.7

88.6

88.6

88.7

Aug.

88.7

88.6

88.4

88.3

88.3

88.3

88.3

88.3

88.3

88.3

88.3

88.3

88.3

88.3

88.3

88.4

88.4

88.4

88.5

88.6

88.4

88.4

88.3

88.3

88.3

88.3

88.3

88.2

88.2

88.1

88.1

Sept.

88.1

88.1

88.1

88.1

88.0

88.0

88.0

87.9

87.9

87.9

87.9

87.9

88.0

88.0

88.0

87.9

87.9

88.0

88.1

88.1

88.2

88.2

88.3

88.3

88.3

88.2

88.3

88.5

88.6

88.6

Monthly elevation and contents, water year October 1950 to September 1951

Date

Oct. 31. ................. .

Dec. 31. ...................

Calendar year 1950. ......

Feb. 28............. .......

Mar. 31. ...................

May 31..... ...............

Aug. 31... .................

Sept. 30. ...................

Water year 1950-51. ......

Elevation 

(feet)t

6,948.08

_

S, 949. 57

-

Contents 

(acre-feet)

72,600

86,400

.

63,200

77,500

88,100

88,600

-

Change in contents 

during month 

(acre-feet)

-14,300

+2,400

+35,800

-12,200

-2,800

+17,300

-600

+500

+1,700

t Elevation at 12 p.m.
SAN JOAQUIN RIVER BASIN 241

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 800 ft upstream from Grouse Creek and 1,000 ft downstream from Huntington Lake.

Drainage area. 80.0 sq mi.

Records available.--June 1925 ty> September 1951 (records prior to October 1929 only for 

periods or spill from Huntington Lake).

Gage. Water-stage recorder, Parshall flume and concrete control. Altitude of gage is

£,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, 48 cfs June 28 (gage height, 3.16 ft); minimum, 

0.3 cfs on many days.

1925-51: Maximum discharge, 2,040 cfs June 23, 1925 (gage height, 11.3 ft, present 

datum), siphon spillways operating at Huntington Lake; minimum, 0.1 cfs Sept. 10-13, 

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, furnished-by Southern California Edison Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1950-51, (gage height. In feet, 

and discharge, In cu6lo feet per second)

1.2 

1.5 

1.8 

2.5

0.2 

1.0 

2.0 

5.1

2.6

2.7

2.8 

3.0

15.0

30,0

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

~7J 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

.9

1.1 "75

.5

.6

.7

11.9

0.38

24

Nov.

0.5

.4

.4

.4

.4

.4

.4

.3

.3

.7

.3

.3

.4

.4

.4

.4

.5

15

T?

4.2

2.7

2.1

1.8

1.5

1.4

1.3

1.2

1.1

1.1

1.8

-

54.8

1.83

109

Dec.

1.4

1.3 iT~

~9".0

4.4

4.7

5.4

4.6

3.7

3.2

3.0

2.8

2.6

3.9

3.0

2.7

2.5

2.4

2.4

2.2

2.2

2.1

2.0

1.9

1.9

1.8

l.B

1.7

1.7

1.7

1.6

99.6

3.21

198

Jan.

1.5

T75

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.2

42.6

1.37

84

Feb.

1.2

T75

1.3

1.3

1.6

1.5

1.6

1.5

1.6

1.6

1.7

T77

1.7

1.6

1.5

1.5

1.4

1.4

1.3

1.3

1,3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

_

_

-

39.2

1.40

78

Mar.

1.2

1.2

1.2

1.2

1.2

1.1

T7T

1..2

1.1

1.1

1.2

1.3

1.4

1.4

1.5

1.6

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.8

1.8

1.8

T7§- 1.9

1.8

1.7

46.3

1.49

92

Apr.

1.7

1.7

1.6

1.7

1.7

1.7

1.7

1.8

1.8

1.9

1.9

1.9

1.8

1.8

1.8

1.7

1.7

1.7

1.9

1.8

1.7

1.6

1.6

1.6

1.6

1.6

1.4

T75

1.6

1.5

51.3

1.71

102

May

1.7

1.9

2.1

2.4 T"2~

2.3

2.2

2.1

2.0

1.9

1.8

1.7

1.8

1.7

1.6

1.5

1.5

1.4

1.4

1.3

1.3

1.3

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.0

175

49.1

1.58

97

June

1.0

1.0

1.0

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.8

.8

.8

.7

.7

.7

.7

3.5

*13

*26 ~S.a

.8

66.3

2.21

132

July

0.7

1.1

1.0

.8

1.8

3.9 ~7B

.7

.8

.7

.6

.7

.6

.6

.5

.5

.6

.5

.5

.5

.5

.5

.4

.T

.5

.5

.4

.4

.4

.4

.4

22.7

0.73

45

Aug.

~n0.4

.4

.4

.4

.4

.4

.4

.4

.4

.3.4"

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

11.2

0.36

22

Sept.

~7l 0.4

.4

.3

.T

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

9.5

0.32

19

Calendar year 1950: Max 15 Mln 0.2 Mean 1.18 Ac-ft 858

Water year 1950-51: Max 26 Mln 0.3 Mean 1.38 Ac-ft 1,000

* Discharge measurement made on this day.
242 SAN JOAQUIN RIVER BASIN

Pitman Creek below Tamarack Creek, Calif.

Location. Lat 37°12', long. 119°12', in NWij sec. 35, T. 8 S., R. 25 E., on right bank 500 

ft" downstream from Tamarack Creek, 3 miles upstream from mouth, and 3 miles southeast 

of town of Big Creek.

Drainage area. 22.0 sq mi.

Records available.--December 1927 to September 1951.

Gage.--Water-stage recorder and concrete and rock control. Altitude of gage is 7,100 ft 

ffrorn topographic map). Prior to Sept. 29, 1940, at site 10 ft downstream on left bank 

at same datum.

Average discharge.--23 years (1928-51), 37.8 cfs.

Extremes. Maximum discharge during, year, 3,220 cfs Nov. 19 (gage height, 10.77 ft), from 

rating curve extended above 530 cfs on basis of slope-area determination of peak flow; 

minimum, 0.1 cfs Oct. 13-20, 22, Aug. 15-30, Sept. 8-30.

1927-51; Maximum discharge, that of Nov. 19, 1950; no flow part of Nov. 24, 1930, 

Oct. 15-18, 1933.

Remarks.--Records good except those for periods of ice effect, which are fair. No diver-

 slon above station; practically all flow diverted below station to Huntington-Shaver 

conduit.

Cooperation.--Water-stage recorder graph and several discharge measurements, furnished by

 Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Revisions (water years). W 931: 1940.

Rating table, water year 1950-51, except periods of ice effect (gage height, 

in feet, and discharge, in cubic feet per second)

1.8

1.9

2.0 

2.2 

2.5

2.7

8.0

18

3.0 

3.5 

4.0 

4.5

5.0

108

156

222

6.0 

7.0 

8.0 

9.0

428

720

1,140

1,700

Discharge, In cubic feet per second, water year October 1950 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.

0.2

.2

.2 

.2

.2

.2

.2 

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

*.l

.2

.1

.2

.2

.2

11

"4.1 16

2.7

4.5

7.1

49.5

1.60

98

Nov.

3.8

2.9

2.9

2.7

2.2

1.8

1.6 

1.5

1.3

1.1

1.1

.9

#1 .3

4.2

4.1

2.9

3.9

808

%420

284

184

114

82

66

57

51

46

42

 39

79

-

3,312.2

110

6,570

Dec.

60

46

876 *35o

166

210

369 

312

168

130

112

101

89

141

113

87

76

71

67

62

58

55

51

49

47

 44

40

40

40

37

33

4,200

135

8,330

Jan,

38

37

38 

35

33

30

28 

25

21

25

25

23

25

28

28

27

27

27

27

26

25

28

31

30

30

30

29

28

27

25

23

879

28.4

1,740

Feb.

24

24

24 

25

28

31

33 

35

37

40

38

37

35

33

31

30

29

28

27

26

26

25

24

23

22

23

23

22

.

-

803

28.7

1,590

Mar.

22

22

22 

22

22

22

21 

22

22

21

21

23

27

32

34

36

37

37

40

42

43

42

43

45

48

50

53

58

BT

48

45

1,079

34.8

2,140

Apr.

45

45

45

44

44

47

54 

64

86

111

126

136

134

133

127

123

106

94

106

97

95

95

93

89

82

*69

69

62

75

69

-

2,565

85.5

5,690

May

64

69

75 

88

86

91

110 

124

134

145

129

101

89

86

85

93

101

105

106

101

93

83

75

77

80

73

68

59

*51

45

11

2,725

87.9

5,400

June

37

55

34 

32

30

29

28 

26

25

23

22

21

20

18

17

16

15

14

13

25

18

16

14

14

12

10

8.9

7.7

*7.1

6.5

594.2

19.8

1,180

July

6.0

5.7

5.4 

4.9

4.6

4.3

4.1

3.6

3.4

3.1

2.9

2.7

2.5

2.2

2.0

2.0

1.8

1.8

1.6

1.6

1.5

1.3

1.1

1.1

.9

.8

.8

.8

*.6

.6

.±5

76.2

2.46

151

Aug.

0.5

T3T

.4 

.4

.4

.4

.4 

.4

.4

.2

.2

.2

.2

.2

ji

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

*.l!i.1.1.1

.2

6.5

0.21

13

Sept.

0.2

T?

.2 

.2,

.2

.2

.2

li

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

* .'l . 1

.1

.1

-

3.7

0.12

7.3

Calendar year 1950 : Max 1,420 Mln _ Mean 50.7 Ac-ft 36,690

Water year 1950-51 : Max 1,420 Mln 0.1 Mean 44.6 Ac-ft 32,310

Peak discharge (base, 200 cfsl. Nov. 19 (1:30 a.m.) 3,220 cfs (10.77 ft); Dec. 3 (2 p.m.) 1,400 

cfs (8.49 ft); Dec. 6 (10 p.m.) 566 cfs (6.52 ft); Dec. 14 (4 p.m.) 228 cfs (5.04 ft). 

* Discharge measurement made on this day. 

Note. Stage-discharge relation affected by Ice Jan. 6-23, Jan. 29 to Feb. 7, Feb. 13 to Mar. 13.
SAN JOAQUIN RIVER BASIN 243 

Huntington-Shaver conduit at outlet, Calif.

Location. Lat 37°10', long. 119°14', in NW^ sec. 15 (revised) 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 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 6,680 ft (from 

topographic map).

Average discharge.--22 years (1929-51), 200 cfs.

Extremes. Maximum daily discharge during year, 1,640 cfs Dec. 4, 7; minimum daily, 1.9 cfs

1928-51: Maximum daily discharge, 1,780 cfs June 3, 4, 1938; minimum daily, 1.2 cfs 

Dec. 28, 1944, to Jan. 2, 1945.

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 three discharge measurements, furnished by 

Southern California Edison Co., obtained in connection with a Federal Power Commission 

project.

Revisions (water years). W 931: 1940.

Discharge, In cubic feet per second, water year October 1950 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.

2.7 

2.7

2.7

2.7

2.7

2.7

2.7

2.6

2.1

1.9

1.9

1.9

1.9

1.9

1.9

2.1

2.1

2.1

2.1 

2.1

2.2

2.2

2.2

2.2

2.2

5.3

24 "5.3

4.0

5.1 

8.E

108.8

3.51

216

Nov.

5.6 

4.5

4.5

4.5

4.0

3.8

3.6

3.3

3.3

3.3

3.1

771

3.1

3.1

3.3

3.6

4.5

180

46 

19

66

114

83

66

62

55

50

45

42

219

1,111.2

37.0

2,200

Dec.

623 

604

1,400

1.640

1,*80

1,530

1,640

1,620

1,200

704

690

683

676

720

694

676

665

661

589 

522

282

59

56

54

51

4B

*44

42

42

40 

_35

19,770

638

39,210

Jan.

27 

38

39

37

35

32

30

27

22

^S

27

24

26

29

29

29

28

28

29 

27

26

30

33

31

31

31

33

45

444

1.040 

1,020

3,353

108

6,650

Feb.

1.000 

992

974

956

472

34

35

38

39

42

42

38

36

*35

33

31

30

29

28 

27

27

26

25

24

_23

24

24

23

-

5,107

182

10,130

Mar_

23 

23

23

23

23

23

 57 22

23

22

22

24

30

33

35

38

39

39

41 

44

45

45

46

48

51

53

56

 615 60

47

1,135

36.6

2,250

Apr.

ft

239

663

658

654

654

659

668

686

704

714

716

718

718

720

706

696

708 

795

942

940

~$$3 949

937

920

918

908

926

921

21,478

716

42,600

May

912 

907

910

918

901

900

910

917

922

933

921

894

890

880

879

761

122

740

760 

772

776

782

784

798

816

820

824

938

1,100

1,110 

1,100

27,197

877

53,940

June

1,100 

1,100

1,100

1,100

1,100

1,090

960

824

826

828

620

459

448

448

449

452

456

910

1.220 

862

618

661

708

710

752

776

764

473

37

206

22,057

735

43,750

July

659 

555" 888

607

714

670

564

536

548

520

520

520

520

520

492

256

371

842

805 

569

483

171

30

14

5.3

3.3

3.3

3.3

3.3

3.3 

3.3

L2.362.1

399

24,520

Aug.

3.1 

T7T

3.1

3.1

3.1

3.1

3.1

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9 

2.9

2.9

2.9

2.9

2.9

2.7

2.7

2.7

2.7

2.7

2.7

2.7

89.9

2.90

178

Sept.

2.7

2.7

2.7

2.7

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 

2.6

2.6

2.6

2.6

*2.6

2.6

2.6

2.6

2.6

2.6

2.6

78.5

2.62

156

Calendar year 1950: Max 1,640 Mln 1.9 Mean 249 Ao-ft 180,100

Water year 1950-51: Max 1,640 Mln 1.9 Mean 312 Ac-ft 225,800

* Discharge measurement made on this day.

Note. For periods Dec. 3-9, Jan. 29 to Feb. 4, Apr. 20 to May 16, May 28 to June 7, June 18-20, 

July 2, 18, 19, discharge was computed as the sum of unpublished records for Huntington-Shaver conduit 

at Intake and Pitman Creek Shaft plus 3 cfs.
244 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 

flam on Stevenson Creek and 6 miles southwest of town of Big Creek.

Drainage area. 29.7 sq mi.

Records available.--January 1927 to September 1951.

Gage.--Water-stage recorder. Datum of gage is at mean sea level (levels by Southern CaliT'ornia Edison Co.).

Extremes. Maximum contents during year, 135,500 acre-ft June 27 (elevation, 5,370.10 ft); 

 minimum, 16,500 aore-ft Apr. 3 (elevation, 5,291.25 ft). '

1927-51: Maximum contents, 135,700 aore-ft July 4, 5, 1946; maximum elevation,

5,370.2 ft July 13-18, 1945. July 4, 5, 1946; minimum contents,*652 acre-ft Mar. 7,

1942 (elevation, 5,249.4ft).

Remarks.--Lake is formed by concrete-arch dam; completed and storage began in 1927. Usable 

capacity, 135,300 acre-ft between elevation 5,225 ft (trash-rack 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. Records of contents, furnished by Southern California Edison Co., obtained in 

connection with a Federal Power Commission project.

Contents, in thousands of acre-feet, water year October 1950 tc} September 1951

Day

1

2

3

4

5

6

Y

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

2Y

28

29

30

31

Oct.

69.6

68.9

68. 2

67.5

66.9

66.3

65.7

65.6

64.9'

64. 2

63.6

63.0

62.5

62.1

62.0

61.5

60.9

60.5

59.9

59.4

59.2

59.0

58.5

58.0

57.5

57.7

57.4

57.1

56.7

56.3

55.9

Nov.

55.6

55.2

54.9

54.7

54.6

54.3

54.0

53.6

53.3

52.9

52.7

52.6

52.2

51.9

51.4

50.9

50.5

52.7

54.3

54.1

53.7

53.3

53.1

52.4

51.7

51.5

50.8

50.0

50.5

50.1

Dec.

49.1

49.6

53.3

56.3

58.6

60.9

63.4

65.9

67.5

68.6

69.1

69.6

70.0

71.0

71.6

72.2

73.1

73.6

74.0

74.2

73.9

73.1

72.5

72.0

71.8

71.1

70.2

69.3

68.4

68.1

6V. 5

Jan.

66.8

65.9

64.9

63.9

63.0

62.0

61.5

60.6

59.5

58.5

57.5

56.4

55.5

54.9

54.0

53.0

52.0

51.4

50.6

49.7

48.9

48.1

47,1

46.2

45.2

44.3

43.6

43.0

42.9

44.1

45.1

Feb.

45.9

46.8

47.7

49.1

49.3

48.5

47.7

46.9

46.0

45.3

44.9

44.3

43.4

42.5

41.6

40.6

39.7

38.9

38.0

37.0

36.0

34.9

33.9

32.8

31.8

30.8

29.7

28.6

_

-

Mar.

27.6

26.5

25.4

24.5

23.6

22.6

21.5

20.5

19.5

19.0

18.8

18.4

17.9

17.6

17.5

17.4

17.3

17.4

17.3

17.2

17.1

17.0

16.8

16.7

16.7

16.7

16.8

17.1

17.3

17.5

17.7

Apr.

17.6

16.9

16.5

16.8

17.2

17.6

18.3

19.1

20.2

21.3

22.4

23.5

24.6

26.0

27.4

28.7

30.0

31.3

32.8

34.5

36.4

38.3

40.2

42.1

44.0

45.9

47.8

49.9

51.9

53.8

May

55.7

57.6

59.5

61.7

63.7

65.5

67.4

69.3

71.2

73.1

75.0

76.8

78.7

80.5

82.2

83.8

85.2

86.7

88.2

89.8

91.3

92.8

94.4

96.0

97.7

99.2

100.8

102.6

104.8

106.9

109.0

June

111.1

113.2

115.3

117.4

119.4

121.5

123.4

125.0

126.5

128.1

129.3

130.2

131.1

131.5

131.6

131.5

131.5

132.2

133.4

133.9

133.9

133.9

134.2

134.6

135.0

135.3

135.5

135.2

134.2

133.8

-

July

134.6

135.3

135.1

135.1

135.3

135.4

135.3

135.2

135.2

135.1

135.0

135.0

134.8

134.8

134.6

134.0

133.6

134.0

134.5

134.6

134.5

134.2

133.3

132.3

131.2

130.1

129.0

127.8

126.7

125.5

124.3

Aug.

123.2

122.1

121.1

120.4

119.7

118.6

117.6

116.6

115.6

114.7

113.8

113.1

112.2

111.2

110.2

109.1

108.0

107.3

107.0

106.2

105.3

104.7

104.0

103.5

103.1

102.7

102.2

101.7

101.1

100.6

100.1

Sept.

99.6

99.2

98.8

98.3

97.8

97.2

96.5

96.0

95.6

94.9

94.2

93.5

92.8

92.0

91.5

91.3

90.6

89.8

88.9

88.1

87.2

86.4

85.9

85.0

84.1

83.3

82.4

81.7

81.3

81.1

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31...............

Calendar year 1950..

Water year 195O-51..

Elevation 

(feet)t

5,334.31

-

-

Contents 

(acre-feet)

69,700

67,500

-

-

Change in contents 

during month 

(acre-feet)

+17,400

+20,300

+11,400

t Elevation at 12 p.m.
SAN JOAQUIN RIVER BASIN 245

Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif.

Location.--Lat 37°17', long. 119°32', in SE£ sec. 26, T. 7 S., R. 22 E., on left bank 

i.uuu ft downstream from Crane Valley Dam and powerhouse.

Records available. October 1940 to September 1951.

Sage.--Water-stage recorder and concrete flume. Altitude of gage is 3,300 ft (from topographic map).

Average discharge.--11 years, 62.3 cfs.

Extremes. Maximum daily discharge during year, 159 cfs Noy. 12, 15-17, 22; minimum daily, 

 U.y cfs Nov. 26, Dec. 3, 10.

1940-51: Maximum daily discharge, 164 cfs Sept. 21, 1944; no flow at times during 

each year except 1945, 1946, 1948, 1951.

Remarks. Records good. Conduit diverts from Crane Valley Reservoir in sec. 26, T. VS., 

R. 22 E. Water passes through Crane Valley powerhouse, then to powerhouse No. 3 and 

eventually returns to North Pork Willow Creek.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1950 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.

150

*149

147

147

148

151

150

148

148

147

152

150 

153

153

153

153

153

153 

155

155

154 

153

153

154

153

145

155

155

155

155

154

4,701

152

9,320

Nov.

154

*155

155

155

154

154

154

155

156

157

158

m156

159

159

159

136 

89

143

154 

159

158

81

35

.2

116

93

99

94

-

4,013.2

134

7,960

Dec.

88

53

.2

24

70

61

52

.6

4.7

.2

90

100 

100

94

67

2.1

2.1

95 

113

110

113 

113

.3

5.9

.8

85

82

88

89

75

.9

1,779.8

57.4

3,530

Jan.

8.2

100

106

113

150

142

1.2

139

151

151

142

143 

151

126

151

151

151

120 

54

39

15 

87

82

82

89

*96

23

2.6

89

89

96

3,040.0

98.1

6,030

Feb.

101

113

150

50

91

120

152

152

152

152

151

151 

151

151

151

151

151

151 

151

*151

147 

144

143

147

147

148

147

147

_

_

-

3,913

140

7,760

Mar.

147

147

146

147

146

146

145

146

145

145

144

144 

144

144

146

146

146

147 

147

147

147 

148

148

148

148

149

148

149

*150

150

151

4,551

147

9,030

Apr.

150

147

144

117

80

20

1.8

1.8

1.8

1.8

6.1

.6 

.6

4.6

27

4.0

2.3

2.3 

2.3

2.3

1.8 

.ii

6^

.6

.6

7.9

.5

.5

103.0

106.0

-

944.6

31.5

1,870

May

*62

73

75

72

71

72

116

146

146

146

103

2.1 

2.1

75

113

141

147

147 

102

.5

38

.5

60

60

78

78

1.2

81

80

40

72

2,406.4

77.6

4,770

June

72

68

1.1

38

17

28

47

47

44

38

42

48 

42

38

33

30

30

30 

30

32

43 

36

36

20

27

25

23

29

21

17

-

1,032.1

34.4

2,050

July

0.6

*30

21

.6

90

94

94

.5

99

93

92

86 

93

90

.5

93

94

86 

87

84

74 

.5

83

84

84

119

142

125

.5

*126

144

2,310.2

74.5

4,580

Aug.

145

143

140

143

.5

110

147

146

146

146

135

.4

125

150

150

151

152

130 

.5

*137

m151

151

131

.5

126

148

149

149

149

3,860.9

125

7,660

Sept.

124

.6

124

144

143

143

143

143

142

142

142

143 

147

150

151

151

153

m153

151 

151

149

147

146

119

*101

95

93

92

-

3,990.6

133

7,920

Calendar year 1950: Max 159 Mln 0 Mean 90.0 Ao-ft 65,180

Water year 1950-51: Max 159 Mln 0.2 Mean 100 Ac-ft 72,480

* Discharge measurement made on this day. 

256498 O - 53 - 17
246 SAN JOAQ.UIN RIVER BASIN

North Fork Willow Creek below Crane Valley Reservoir, Calif.

Location. Lat 37°17', long. 119°32', in SE£ sec. 26, T. VS., R. 22 E., on right bank 

i,buu ft downstream from Crane Valley Reservoir spillway.

Drainage area. 50.8 sq. mi.

Records available.--May 1940 to September 1951. Prior to October 1944 published as Willow 

ureeK below crane Valley Reservoir.

Gage. Water-stage recorder. Altitude of gage is 3,200 ft (from topographic map). 

Average discharge.--11 years, 23.1 cfs.

Extremes. Maximum discharge during year, 146 cfs Dec. 8 (gage height, 3.04 ft); minimum 

daily, 0.4 cfs Oct. 1-12.

1940-51: Maximum discharge, 847 cfs Feb. 11, 1941 (gage height, 5.85 ft); minimum 

daily, 0.1 cfs Nov. 13-16, 1940.

Remarks. Records fair. Flow regulated by Crane Valley Reservoir (capacity, 45,000 acreft) and diversion into Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir (see preceding page). Water is diverted from South Fork Willow Creek into reservoir .

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., in oonnection with a Federal Power Commission project.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.4 

.5 

.6 

.8 1.6

0.2 

.5

1.0 

1.2 

1.4 

1.6

3.1 

5.6 

9.3

IS

1.8 

2.1 

2.7

Discharge, In cubic feet per second, water year October 1950 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

Z2

Z3

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.4

*T4

.4

.4

.4

.4

.4 

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5 

.5

.5

.5

.5

.5

.6

1.2

.7

.6

.5

6

..7

15.7

0.51

31

Nov.

0.6

1.0

*.5

P 5

.5

.5

.5 

.5

.5

.5

.6

.6

1.2

1.6

.8

.8

.8

24

10 

1.8

1.0

.8

.6

.6

.6

.5

.5

.5

.5

.7

-

54.1

1.80

107

Dec.

0.7

.8

20

4.4

3.1

1.7

97

1.0

.8

.7

.7

.6

1.6

.8

.8

.8

.8

.8 

*.8

.8

.8

.7

.7

.7

.7

.8

.8

.8

.8

.8

148.4

4.79

294

Jan.

0.878*

!s

.8

.8

.8

.8

.8

1.0

1.0

1.0

1.0

1.0

1.1

1.2

1.2

6.6

1.5

1.3

1.4

1.2

1.2

1.2

*1.2

1.2

1.2

1.2

1.2

l.Z

40.0

1.29

79

Feb.

.1

.1

.1

.1

.6

.2

.2

.1

.1

' 1~3 -7

.2

.2

.2

.2

.2

.2

.2 

* .1

.1

.1

.1

.1

.1

.2

.2

1.2

_.

_

-

33.7

1.20

67

Mar.

1.2

1.2

1.2

1.3

Isl

1.8

1.4

.4

.3

.2

.2

.2

.2

.1

.2

.Z

.2

.1 

.1

.1

.1

.1

.1

.1

.2

.1

,1

* .1

.1

.1

38.5

1.24

76

Apr.

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.0

-tg

.9

.9

, al

-

29.9

1.00

59

May

* .2

.2

.2

t 5

.4

.4

.3

.2

_ii

.1

.1

.2

.2

.2

.2

.2

.2

.2 

.1

.1

.1

.2

.2

.2

.2

.1

.2

.2

.2

.2

37.5

1.21

74

June

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

1.1

1.1

H

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.2

-

34.1

1.14

68

July

.2

* . 2

.1

.1

.1

.0

.0

.0

.0

.9

.9

.9

.9

.9

.9

.8

.8

.8 

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

*.7

27.8

O.9O

55

Aug.

0.8

.8

.8

.8

.8

.8 

.8

.8

.8

.8

.8

.7

.7

.7

.7

.8

.8

.7

.7 

*.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

22.4

0.72

44

Sept.

0.6

.6

.6

.6

.6

.6 

.6

.6

if

.5

.5

.5

.5

.5

.5

.5

.5

.5 

.5

.5

.5

.5

.5

.5

.5

*.5

.5

.5

.5

-

15.8

0.53

31

Calendar year 195O: Max 97 Mln 0.2 Mean 1.21 Ac-ft 876

Water year 1950-51: Max 97 Mln 0.4 Mean 1.36 Ac-ft 985

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and weather records.
SAN JOAQUIN RIVER BASIN 247

San Joaquin River below Kerckhoff powerhouse, Calif.

Location. Lat 37°04'45", long. 119°33'35", in NW£ sec. 10, T. 10 S., R. 22 E., on left 

came i.l miles downstream from Kerckhoff powerhouse and 1.4 miles upstream from Big 

Sandy Creek.

Drainage area. 1,480 sq mi.

Records available. December 1936 to December 1937, December 1942 to September 1951.

Gage. Water-stage recorder. Datum of gage is 563.4 ft above mean sea level (levels by 

Hureau of Reclamation).

Average discharge.--8 years (1943-51), 2,009 cfs.

Extremes.--Maximum discharge during year, 48,100 cfs Nov. 19 (gage height, 38.40 ft); 

minimum, 62 cfs Oct. 20, 21.

1936-37, 1942-51: Maximum discharge, 75,000 cfs Dec. 11, 1937 (gage height, 46.5 ft), 

from rating curve extended above 20,000 cfs on basis of velocity-area studies, computed 

flow over Kerckhoff Dam, and peak flow of San Joaquin River near Friant; minimum, 7 cfs 

Nov. 5, 1944.

Remarks.--Records good. Flow regulated by eleven power plants and six reservoirs above 

 s^Ea^ion with total usable capacity of about 315,000 acre-ft. Earliest storage began in 

1901 at Crane Valley Reservoir. See records for Florence, Huntington, and Shaver 

Lakes. Contents of Crane Valley Reservoir was 23,800 acre-ft on Sept. 30, 1950, and 

25,500 acre-ft on Sept. 30, 1951.

Cooperation. Water-stage recorder graph, telemark readings, and 12 discharge measuremencs, rurnished by Southern California Edison Co., obtained in connection with a 

Federal Power Commission project.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

8.0 38O

10.0 884

12.0 1,630

14.0 2,720

19.0 6,860

25.0 14,70O

32.0 28,500

Discharge, In cubic feet per second, water year October 1950 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.

1,010 

1,070

1,140

1,160

1,240

1,OOO

1,000

863 

1,080

1,010

1,180

1,070 

1,040

894

622

1,090

*978

1,110

919

959

956

U56" 479

962

977

990

1.500 

1,320

747

964

1/070

51,356

1,011

62,190

Nov.

1,360 

1,010

1,130

901

862

1,O60

1,030

955 

977

919

752

396 'S86

793

654

674

*776

3,170

*27. 200

15,206

10, 100

6,080

4,090

3,140

2,940

2,590

2,140 

1,990

2,160

2,550

-

96,085

5,205

190,600

Dec.

2,580 

2,160

10,400

*18.000

6,160

4,380

7,710

11,000 

6,570

4,460

4,000

*3,760 

3,320

3,840

4,670

3,370

3,020

2,580

2,810

2,650

2,580

2,550

2,310 

2,110

1,820

1,860

2,130 

2,230

2,100

1,700

1,670

150,500

4,210

258,000

Jan.

1,820 

1,720

2,290

1,910

2,260

1,870

1,840

1.660 

1,666

1,990

1,820

2,120 

1,880

1,910

1,910

2,410

2,440

 2,540

2,990

5,590

2,200

2,240

*2,560 

2,180

*2,410

2,150

2,540 

2,180

2,010

2,010

2,160

66,870

2,157

152,600

Feb.

2,020 

2,120

2,09O

1,980

2,O70

2,560

2,450

2,640 

2,580

2,560

2,650

2,710 

2.750

2,526

*2,550

2,220

2,490

2,000

2,020

1,780

1,900

1,950

1,880 

1,970

2,260

1,900

1,690 

1,620

-

_

-

61,670

2,202

122,300

Mar.

1,710 

2,120

1,940

1,850

2,410

2,220

2,20O

2,140 

2,190

2,180

2,010

1.690 

2,050

2,310

*2,060

2,080

2,080

2,180

2,100

2,080

2,030

2.420

2,660 

2,100

2,170

2,170

2,160 

2,120

2,160

2,160

2,160

65,310

2,107

129,500

Apr.

2.100 

2,200

2,450

2,450

2,470

5,08O

3,150

2,690 

2,780

5,400

5,410

5.780 

5,72(1

5,770

3,360

*3,360

3,710

3,160

3,070

5,040

5,030

2,850

2,780 

2,580

2,620

2,310

2,300 

2,380

3,180

2,550

87,490

2,916

173,500

May

2.52O 

2,460

2,500

2,750

3,110

2,810

2,330

3,020 

2,78C

5,290

5,220

5,050 

2,570

2,800

*2,520

2,610

2,540

3,550

3,450

5,840

*4,140

4,050

3,890 

4,350

4,970

5,800

5,900 

6.160

5,296

4,440

3,950

110,060

5,550

218,500

June

5,210 

2,760

2,610

2,550

2,650

2,640

2,870

5,040 

2,820

2,750

2.500

3, 250 

2,860

3,500

*4,520

5.120

4,810

4,560

4,480

5,090

4,800

4,060

4,160 

3,530

3,640

3,760

3,840 

3,780

5,820

5,960

107,500

5,585

215,200

July

5,620 

5.640

2,816

2,890

2,640

2,220

2,210

2,060 

1,950

1,980

2,060

2,000 

2,080

1,920

1,900

1,820

*1,920

1,940

2,180

2,770

2,160

1,730

1.570 

1^620

1,720

1,780

1,790 

1,690

1,650

1,580

2,550

66,210

2,136

131,300

Aug.

2.990 

Z, 750

2,010

1,630

996

1,590

1.60O

1,780 

1,520

1,550

1,580

1,580 

1,560

1,460

*1,430

1,530

1,430

1,370

757 1,34"0"

1,410

1,320

1,250 

967

881

814

1,070 

1,090

1,120

1,130

999

43,204

1,394

85,690

Sept.

1.170

1,050

1,O90

1,110

1,110

1,09O

911 

872

1,060

1,060

1,050 

987

1,O20

*970

805

1,020

1,130

1,030

1,040

955

1,040

832 

1,120

1,090

1,040

*969 

702

S16

465

-

29,121

971

57,760

Calendar year 1950: Max 27,200 Mln 332 Mean 2,355 Ac-ft 1,705,000

Water year 1950-51: Max 27,200 Mln 596 Mean 2,453 Ac-ft 1,776,000

Discharge measurement made on this day.
248 SAN JOAQUIN RIVER BASIN

Big Sandy Creek near Auberry, Calif.

Location.--Lat 37°03'10", long. 119°32'30", in NE^NW^ sec. 23, T. 10 S., R. 22 E., on left 

DanK 1.8 miles upstream from mouth, 3 miles west of Prather, and 4 miles southwest of 

Auberry.

Drainage area. 27.8 sq mi.

Records available.--October 1946 to September 1951 (discontinued).

Gage.--Water-stage recorder. Altitude of gage is 1,240 ft (from topographic map).

Average discharge. 5 years, 4.75 cfs.

Extremes. Maximum discharge during year, 1,540 cfs Nov. 19 (gage height, 4.56 ft); no 

now during several months.

1946-51: Maximum discharge, that of Nov. 19, 1950; no flow during several months 

each year.

Remarks. Records good. No storage or diversion above station.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

.5

.4 

1.0 

4.2

2.0 

2.3

9.6

19

34

82

197

2.6 345

3.0 570

3.4 810

Discharge, In cubic feet per second, water year October 1950 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.

(*)

0

0

0

Nov.

0*0~

0

0

0

0

0

0

0

0

0

o

.1

.2

.1

.1

.1

187

792 "SB"

*18

9.2

6.0

3.8

2.6

2.2

1.6

1.0

.9

3.1

1,094.0

36.5

2,170

Dec.

3.0

1.4

*466

35T

59

38

93

51

28

20

16

14

12

107

47

27

21

17

15

13

12

12

12

11

10

9.6

8.9

8.9

8.9

8.9

8.9

1,480.5

47.5

2,940

Jan.

7.7

7.7

8.3

7.7

7.7

7.2

772

7.2

7.2

32

82

*32

14

12

11

22

15

124

-FT 130

30

24

22

20

17

16

15

14

17

21

15

799.9

25.8

1,590

Feb.

14

13

12

12

*32

*21

16

15

15

13

15

62

^

17

16

*14

13

12

11

10

10

10

*9.6

8.9 379-

11

16

13

_

_

-

442.4

15.8

877

Mar.

16

14

11

12

*56

24

17

16

15

11

11

11

10

8.9

8.9

8.9

8.3

7.7

7.2

*7.7

7.2

7.7

7.7

7.2

7.2

6.6

6.1

6.1

5.6

6.1

5.6

334.7

10.8

664

Apr.

5.6

5.1

5.1

5.1

5.1

*5.1

5.1

5.1

4.6

4.2

3.7

3.3

2.9

2.9

2.6

2.6

2.9

2.9

3.3

*3.7

3.3

2.6

2:2

772

3.7

3.3

2.. 9

19

34

TZ

166.1

5.54

J29

May

7.2

B76

5.1

4.6

4.2

3.7

2.9

2.6

1.9

1.6

1.4

1.4

1.4

1.6

1.4

1.0

.8

.8

.6

.5

.5

.4

.3

.3

.3

.2

.2

.1

**7T

.1

.1

52.9

1.71

105

June

0.1 -71

00~

0

o

0

0

0

0

0

0

0

0

0

0

0

1.5

0.05

3.0

July

(*)

0

0

0

Aug.

(*)

(*)

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 792 Mln 0 Mean 10.3 Ac-ft 7,430

Water year 1950-51: Max 792 Mln 0 Mean 12.0 Ac-ft 8,680

Peak discharge (base, 500 cfs).--Nov. 19 (2:30 a.m.) 1,54O cfs (4.56 ft); Dec. 3 (2 p.m.) 1,210 cfs 

(4.O4 ft); JanT 18 (9:30 p.m.) 612 cfs (3.07 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.
SAN JOAQUIN RIVER BASIN 249

Fine Gold Creek near Friant, Calif.

Location. Lat 37°04'00", long. 119°38'50", in NW^NEi 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 1951.

Gage. --Water-stage recorder. Altitude of gage is 620 ft (from topographic map).

Average discharge. --15 years, 40.7 cfs.

Extremes. Maximum discharge during year, 6,110 cfs Nov. 19 (gage height, 15.58 ft); no

 flow Oct. 1 to Nov. 14, June 27 to Sept. 30. n . ^ f

1936-51: 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 during each 

year.

Remarks. --Records fair. No storage or diversion above station.

Revisions.--W 1091: Drainage area.

Rating tables, water year 1950-51 (gage height. In feet,

and discharge. In cubic feet per second) 

(Shifting-control method used Nov. 8 to Dec. 3, Jan. 1O-23)

1.4

1.5

1.6

1.7

Oct. 1

2.0

2.2

2.5

3.0

3.5

to Feb.

10

20

42

96

167

11

4.0

5.0

7.0

9.0

11.0

1,

1,

2,

269

531

120

8OO

850

1.8

1.9

2.0

2.2

M^ +

0

2

7

Feb.

.5

.0

.5

12

2,

2,

2.

3,

to

,*X

.6

.8

,2

Sept. 30

17 3.6

31 4.0

50 5.0

1OO

170

264

531

5.0~Tt! 

Discharge, In cubic feet per second, water year October 1950 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.

(*)

0

0

0

Nov.

0

*0

0

0 

0

0

0

0

0

0

0

0

0

0

*3.8

2.6

1.1

783

2.660

269

*89

52

38 

32

26

23

21

20

19

25

4,064.5

135

8,060

Dec.

25

21

1,060

1.450 

238

161

342

202

143

119

102

92

84

199

*128

100

89

83

76

70

68

65

62

60

59

55

53

53

51

51

51

5,412

175

10, 730

Jan.

47

45

47

47 

43

42

41

40

39

65

136

*123

77

70

69

114

85

263

452

174

112

100

90 

81

75

69

65

62

65

71

61

2,870

92.6

5,690

Feb.

56

55

54

53 

*134

*80

65

*58

52

48

85

295

130

100

*87

78

67

67

63

61

60

61

*54 

49

il

54

65

57

_

_

-

2,139

76.4

4,240

Mar.

61

56

47

54 

148

100

76

65

61

54

49

48

45

44

41

40

38

35

*34

33

32

31

30 

29

28

27

26

25

24

24

23

1,428

46.1

2,830

Apr.

22

22

22

*22

21

21

20

19

19

18

17

16

15

15

14

14

14

14

14

*15

14

14

fi

15

15

14

23

64

29

568

18.9

1,130

May

20

*18

16

16 

16

15

14

13

11

10

9.6

9.2

9.2

10

9.2

8.8

7.9

6.9

6.3

5.7

5.7

5.4

4.8 

4.2

4.0

3.8

3.5

3.0

*2.8

2.5

275

274.0

8.84

541

June

2.2

2.0

1.9

1.7 

1.6

1.6

1.6

1.6

1.4

1.2

1.1

1.0

.8

.6

.6

.5

.4

.4

.3

.3

.3

.3

.2 

.1

.1

.1

0

0

0

0-

23.9

.80

47

July

(*)

(*)

0

0

o

Aug.

(*)

(*)

0

0

0

Sept.

0

0

0

Calendar year 1950 : Max 2,660 Mln o Mean 34.2 Ac-ft 24,720

Water year 195O-51 : Max 2,660 Mln 0 Mean 46.0 Ac-ft 33,27O

Peak discharge (base. 500 efs). Nov. 19 (2 a.m.) 6/110 cfs (15.58 ft); Dec. 4 (2 a.m.) 4,900 cfs 

(14.00 ft); Jan. 18 (11 p.m.) 1,140 cfs (7.22 ft). 

* Discharge measurement made on this day.
250 SAN JOAQUIN RIVER BASIN 

Millerton Lake at Friant, Calif.

Location. Lat 37"00', long. 119°42', In SW£ sec. 5, T. 11 S., R. 21 E., near'center of 

FrTarit Dam on San Joaquin River, immediately upstream from Cottonwood Creek and 0.5 

mile northeast of Friant.

Drainage area. 1,633 sq mi.

Records available. October 1941 to September 1951.

Gage.--Water-stage recorder. Datum of gage is at mean sea level (levels by Bureau of 

Reclamation). Prior to May 29, 1944, staff gages on left bank at same datum.

Extremes . Maximum contents during year, 450,600 acre-ft June 2, 21 (elevation, 563.16 

rt); minimum, 67,400 acre-ft Oct. 16 (elevation, 428.5 ft).

1941-51: Maximum contents, 473,300 acre-ft June 29, 30, 1948 (elevation, 568.1 ft); 

minimum recorded, 20,190 acre-ft Nov. 3, 1943 (elevation, 379.6 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. Capacity, 503,200 acre-ft between elevations 375.4 ft 

(invert of river outlet) and 578.0 ft (top of drum-type spillway gates) above mean sea 

level. Millerton Lake is one of the storage units in Central Valley project. Records 

including extremes, show usable contents at 12 p.m. Records below elevation 440 ft or 

83,300 acre-ft interpolated from staff-gage readings made at 8 a.m.

Cooperation. Record of contents furnished by Bureau of Reclamation.

Contents, In thousands of acre-feet, water year October 1950 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

Oct.

76.2

75.2

74.4

73.8

73.4

72.7

72,2

71.5

71.0

70.8

70.6

70.2

69.6

68.8

67.7

67.4

67.8

68.

68.

69.

69.

69.

69.

69.

70.

71.

73.

74.

75.

76.

78.0

Nov.

79.5

80.9

82.3

83.4

84.4

85.6

86.8

88.3

89.3

90.0

90.6

90.4

91.0

91.9

92.4

93.1

93.8

102.3

168.2

194.7

216.5

228.8

236.5

242.5

248.1

252.9

256.3

259.5

262.8

266.7

-

Dec.

270.7

274.0

297.5

338.6

350.6

358.9

374.3

396.9

409.3

417.2

422.1

424.5

424.2

423.7

423.3

420.2

416.6

416.4

407.7

404.1

401.3

399.5

398.1

396.3

393.9

391.4

389.7

389.3

390.9

392.2

393.4

Jan.

395.2

397.0

400.9

404.0

407.7

410.7

413.6

416.3

418.9

420.5

420.9

421.2

421.1

420.9

420.5

419.2

417.2

415.4

414.5

413.7

410.5

407.3

404.7

401.4

398.4

395.0

392.3

389.2

385.6

382.0

. 378.6

Feb.

374.9

371.8

368.3

364.6

361.7

359.2

356.4

354.0

351.2

349.0

347.6

347.5

348.3

348.5

348.7

348.4

348.5

347.7

347.1

345.9

345.0

344.1

343.1

342.2

341.9

341.7

342.2

343.1

_

-

Mar.

344.4

346.5

348.1

349.8

353.5

356.0

358.4

360.9

363.9

366.8

369.4

370.7

372.2

373.9

374.7

375.5

375.9

376.1

376.0

375.6

374.9

374.9

374.0

372.2

370.6

369.2

367.6

365.8

363.9

362.0

360.0

Apr.

357.8

355.8

354.4

353.2

352.4

352.7

353.4

352.5

351.9

352.3

352.7

354.2

355.4

356.9

357.7

358.4

360.0

360.7

361.3

361.9

362.4

362.5

362.5

362.2

362.1

361.6

361.1

361.1

363.1

363.9

-

May

365.3

367.3

369.4

371.9

375.1

378.0

379.7

382.7

385.2

388.4

391.1

393.4

394.4

396.0

396.3

396.9

397.3

399.5

401.3

403.8

406.8

409.2

411.5

414.6

419.1

425.5

432.0

438.4

443.3

446.9

449.4

June

450.5

450.6

450.3

449.8

449.2

448.3

447.6

447.2

446.4

445.6

443.7

443.7

442.5

441.6

442.0

444.2

445.8

446.8

447.4

449.3

450.6

450.0

449.5

447.6

445.8

444.3

442.9

441.2

439.3

437.5

-

July

434.8

432.5

428.6

424.6

420.2

414.8

409.7

404.4

398.6

392.4

386.5

380.2

375.6

371.6

367.9

363.7

359.5

355.3

351.2

348.2

344.1

339.1

333.6

328.1

322.8

317.3

311.6

305.8

299.9

293.8

289.0

Aug.

285.5

281.6

276.6

270. b

263.8

257.6

251.9

246.5

240.3

233.9

228.0

222.8

218.1

213.9

209.7

205.9

202.0

198.1

193.0

189.1

185.5

182.4

179.7

176.8

173.8

170.5

167.7

165.2

162.5

160.2

157.8

Sept.

155.8

153.1

151.2

149.8

148.8

147.9

147.2

146.4

145.2

144.8

144.4

143.7

142.9

142.2

141.3

140.3

140.0

140.2

140.1

140.6

141.0

141.8

142.2

143.2

144.1

144.8

145.5

145.6

145.8

145.5

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31.. ..................

Calendar year 1950. ......

Sept. 30. ...................

Water year 1950-51. ......

Elevation 

(feet)

549.99

-

473.15

Contents 

(acre-feet)

393,400

-

145,500

Change in contents 

during month 

(acre-feet)

+126,700

+326,900

+3 900

-12,300

+67,900
SAN JOAQUIN RIVER BASIN 251

Madera Canal near Friant, Calif.

Location. Lat 36°59'45", long. 119°47'55", in NW£ sec. 9, T. 11 S., R. 20 E., on center 

pier of bridge, 8.8 miles downstream from intake and 5 miles west of Friant.

Records available. October 1943 to September 1951.

Gage.--Water-stage recorder. Altitude of gage" is 415 ft. Prior to Oct. 1, 1948, at several sites upstream at various daturas.

Average discharge. 8 years, 149 cfs.

Extremes. Maximum daily discharge during year, 845 cfs Aug. 9; no flow during several 

months.

1943-51: Maximum daily discharge, that of Aug. 9, 1951; no flow during several 

months in each year.

Remarks.--Canal diverts from right bank of San Joaquin River at Friant Dam. No diversions 

above station. It is a part of Central-Valley project and supplies water for irrigation 

between San Joaquin and Fresno Rivers. No diversion above station.

Cooperation. Records of daily discharge furnished by Bureau of Reclamation. 

Revisions (water years). W 1151: 1944-48.

Discharge, in cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

T5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

zz

55

81

105

105

104

104

103

103

103

103

102

1,109

35.8

2,200

Apr.

129

129

154

171

171

170

169

168

182

214

223

 22B- 225

224

225

224

213

164

164

167

175

175

175

176

175

175

175

177

175

106

5,395

180

10,700

May

0

ff

0

0

0

0

0

0

2

90

107

111

112

120

158

190

200

246

246

247

247

248

250

237

187

209

227

549

3ST

88

88

4,526

146

8,980

June

106

220

258

258

258

268

310

309

281

177

200

201

"?oT 103

330

379

381

388

418

445

447

479

620

663

648

618

635

655

681

697

11,634

388

23,080

July

697

695

679

644

m

665

678

676

681

730

732

747

745

745

739

735

732

762

797

799

"515 815

807

799

794

788

784

797

791

786

796

23,094

745

45,810

Aug.

812

826

821

812

800

789

778

808

845

332

818

805

792

783

773

764

754

742

731

716

703

634

425

426

421

414

408

400

392

353

281

20,658

666

40,970

Sept.

~553 399

387

381

377

375

372

371

369

347

320

299

296

283

262

125

0

T5

0

0

0

0

0

0

0

0

0

0

0

0

0

5,356

179

10,620

Calendar year 1950 : Max 789 Mln 0 Mean 163 Ac-ft 118,321

Water year 1950-51 : Max 845 Mln 0 Mean 197 Ac-ft 142,400
252 SAN JOAQUIN RIVER BASIN 

Frlant-Kern Canal at Friant, Calif.

Location. Lat 36°59'43", long. 119°42'17", in NW£ sec. 8, T. 11 S., R. 21 E., on right 

bank 0.25 mile southwest of Friant Dam and 0,5 mile northeast of town of Friant.

Records available.--March 1949 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 460 ft (from topographic map). Record 

of head on hollow-jet valves and the valve openings obtained by Bureau of Reclamation. 

Prior to July 8, 1949, staff gages at various sites and datum.

Extremes. Maximum daily discharge during year, 1,986 cfs Aug. 2; no flow during several 

months.

1939-51: Maximum daily discharge, that of Aug. 2, 1951; no flow during several 

months in each year.

Remarks. Canal diverts from left bank of San Joaquin River at Friant Dam for irrigation 

in upper San Joaquin Valley.

Cooperation. Records of daily discharge and runoff in acre-feet furnished by Bureau of 

Keciamation from valve operation records.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2 

5

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.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

T5 

0

0

0

0

0

0

0

0

0

0

0

0

0

127

415

598

636

745

799

799

798

796

794

793

791

847

921

997 '9"§5

11,849

382

23,502

Apr.

990 

5BT 

984

808

698

697

697

730

827

827

828

784

702

611

612

613

614

615

616

598

582

583

583

574

502

400 

392

365 

33

0

-

18,852

628

37,392

May

30

75

73

73

74

74

63

46

46

47

47

47

47

51

70

95

110

144

162

163

280

351

380

392

394

396 

400

415 

455

478

488

5,964

192

11,829

June

500 

489 

474

4"BTT

622

818

817

856

906

905

913

954

1,088

1,298

1,281

1,248

1,251

1,252

1,262

1,292

1,370

1,400

1,399

1,397

1,438

1,570 

1,505

1,502 

1,499

1,495

33,226

1,108

65,903

July

1,491 

1,487 

1,517

1,575

1,593

1,632

1,621

1,610

1,617

1,691

1,749

1,795

1,781

1,770

1,759

1,766

1,794

1,795

1,813

1,802

1,789

1,785

1,858

1,840

1,825

1,845 

1,901

1,930 

1,939

1,953

1,958

54, 281

1,751

107,665

Aug.

1,978 

1,986 

1,946

1,894

1,902

1,900

1,905

1,928

1,942

1,952

1,816

1,506

1,141

1,118

1,100

1,095

1,113

1,143

1,145

1,132

1,135

1,117

1,074

1,052

1,049

1,055 

1,041

1.051 

1,057

1,087

1,061

43,401

1,400

86,085

Sept.

1.025 

1,030 

956

727

658

592

555

502

502

478

521

741

754

797

857

855

857

soa

741

593

585

568

562

569

578

581 

572

557 

542

325

-

18,074

602

55,849

Calendar year 1950 : Max 1,169 Mln 0 Mean 270 Ac-ft 195,449

Water year 1950-51 : Max 1,986 Mln 0 Mean 509 Ac-ft 368,225
SAN JOAQUIN RIVER BASIN 253

Cottonwood Creek near Priant, Calif.

Location. Lat 37°00'05", long. 119°43'10", in SE£ sec. 6, T. 11 S., R. 21 E., on right 

canK i mile upstream from mouth and 1 mile northwest of Priant.

Drainage area. 38 sq mi, approximately.

Records available.--October 1941 to September 1951 (discontinued).

Gage. Water-stage recorder. Altitude of gage is 355 ft (from topographic map).

Average discharge. 10 years, 2.64 cfs.

Extremes. Maximum discharge during year, 305 cfs Feb. 12 (gage height, 3.50 ft); no flow 

lor several months.

1941-51: Maximum discharge, 569 cfs Jan. 22, 1943 (gage height, 3.89 ft); no flow 

for several months each year.

Remarks. Records good below 100 cfs, fair above. No diversion above station. Creek is 

trioutary to San Joaquin River between Friant Dam and gaging station downstream.

Rating tables, water year 195O-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Dec. 4-2O, Mar. 10 to May 10)

Oct. 1 to Nov. 19

.9

.4

1.4 

3.1

1.0 

1.3 

1.6 

2.0

.9

1.1 

1.3

19 to Sept. 30

1.6 2

.2 1.9 4

.0 2.3 7

.3 2.7 13

8.2

Discharge, In cubic feet per second, water year October 1950 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.

(*)

(*)

0

0

0

Nov.

0

*n

0

0

o

o

0

0

o

0

0

0

o

**.!

0

0

o

1.0

*Tl" 48

4.7

2.1

1.5

1.0

.9

.7

.7

.6

.6

**1.3

-

77.2

2.57

153

Dec.

1.9

1.1 4? 

*90 2"6-

23

57

25

18

16

14

12

11

30

19

15

13

12

11

9.8

10

9.8

9.4

8.6

9.0

8.2

7.6

7.6

7.6

7.6

8.2

547.4

17.7

1,090

Jan.

6.4

6.1

5.8

6.4

5.6

574- 5.4

5.4

5.4

*22

*47

40

20

18

18

38

22

46

62 36-

32

32

31

28

26

25

23

21

21

21

17

697.9

22.5

1,380

Feb.

16

15

15

14

*43

22

18

16

15

14

47

8736-

32

*28

25

24

22

20

19

19

19

*17

16

15

17

20

15

_

-

-

668

23.9

1,320

Mar.

19

15

11

12

33_

17

13

11

9.8

8.2

7.0

7.0

7.0

6.7

5.8

5.8

5.4

5.0

4.6

*4.8

4.6

4.2

3.6

3.6

3.3

2.8

2.5

2.5

2.5

2.6

2.2

242.5

7.82

481

Apr.

1.9

1.9

2.1

2.3

1.9

*1.6

1.5

1.1

1.0

.8

.6

.3

.3

.2

.3

.3

.3

.2

.4

*.7

.3

.1

00"

0

.1

0

1.1

8.6

*273-

-

32.2

1.07

64

May

JU£

.6

.4

.3

.2

O

^

O

0

0

o

0

o

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

*0

0

*0

2.7

.09

5.4

June

0

0

0

July

(*)

0

o

0

Aug.

(*)

(*)

0

0

0

Sept.

0

O

0

Calendar year 1950: Max 9O Mln O Mean 2.72 Ac-ft 1,98O

Water year 1950-51 : Max 90 Mln 0 Mean 6.21 Ac-ft 4,490

Peak discharge (base, 5 cfs). --Nov. 19 (2 p.m.) 136 cfs (2.71 ft); Dec. 4 (4 a.m.) 214 cfs (3.14

; Jan. 11 (8 p.m. 

3.19 ft); Feb. 5 

23 cfs (1.66 ft); Mar. 5

ft); Dec. 7 (Z a.m.; 103 cfs (2.61 ft); Dec. 14 (2 p.m.) 57 cfs (2.25 ft 

(2.47 ft); Jan. 16 (7 a.m.) 58 cfs (2.11 ft); Jan. 18 (11 p.m.) 223 cfs 

76 cfs (2.31 ft); Feb. 12 (12:30 a.m.) 3O5 cfs (3.5O ft)j Mar. 1 (1 p.m. 

(3 a.m.) 41 cfs (1.96 ft); Apr. 29 (7:3O p.m.) 13 cfs (1.66 ft).

) 98 cfs 

(9:30 a.m.)

Discharge measurement made on this day. 

** Field estimate made on this day.
SAN JOAQUIN RIVER BASIN

San Joaquln River below Friant, Calif.

Location.--Lat 36°59'04", long. 119°43'24", in SWi sec. 7, T. 11 S., R. 21 E., on left ban!

 0.5 mile west of Friant, 1.5 miles downstream from Cottonwood Creek, 2 miles downstream 

from Friant Dam, and at mile 268.1.

Drainage area. 1,675 sq mi.

Records available.--October 1907 to December 1908 (gage heights only), January 1909 to 

September 1951. Published as "near Pollasky" October 1907 to December 1908, and as 

"near Friant" January 1909 to September 1938. Yearly summaries for period 1908-9 published in Water-supply Paper 881.

Gage.--Water-stage recorder since Oct. 1, 1938. 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, waterstage recorder at site 2.5 miles upstream at different datum.

Average discharge.--44 years (1907-51), 2,316 ofs, including diversions to Madera Canal, 

1944-51, and J<'riant-Kern Canal, 1949-51.

Extremes.--Maximum discharge during year, 5,050 cfs Dec. 18 (gage height, 7.84 ft); minimum, 38 cfs Nov. 24.

1907-51: Maximum discharge, 77,200 cfs Dec. 11, 1937 (gage height, 23.8 ft, site 

and datum then in use); minimum, 5.5 cfs Oct. 20, 1941.

Remarks.--Records excellent. Flow regulated by Millerton Lake beginning in 1944 (see p.

 S50T and by other reservoirs described in Remarks for San Joaquin River below Kerckhoff 

powerhouse. Diversion for irrigation through Madera and Friant-Kern Canals (seep. 252).

Cooperation.--Nineteen discharge measurements furnished by Bureau of Reclamation. 

Revisions (water years).--W 843: 1914 (M).

Rating table's, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used May 14-24, Aug. 5 to Sept. 30)

1 to Nov. 27 28 to Sept. 30

1.7 

2.0 

2.4 

2.8

137

225

400

660

1,130

2,020

2.6 

3.0 

3.4 

3.8

179

283

445

670

5.0

5.5

940

1,250

1,610

2,120

6.0 2,680

7.0 3,930

8.0 5,270

Discharge, in cubic feet per second, water year October 1950 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.

1,570

»1,550

1,540

1,520

1,400

1,340

1,210

1,210

1,210

1,210

1,200

1,240

1,320

1,310

1,310

 1,160

819

819

762 

720

714

714

720

*720

720

638

470

418

422

387

311

30,654

989

60,800

NOV.

 311

311

311

311

311

314

341

396

409

440

445

445

422

345

*318

318

322

315

73 

*52

43

39

39

72

120

113

348

232

414

418

-

8,348

278

16,560

Dec.

*422

422

465

528

475

470

512

485

480

480

*1,360

*2,500

3,430

*4,420

*4,980

4,980

4,960

4,960

5,020 

4,540

4,030

3,510

3,020

3,020

3,020

3,000

2,990

2,460

1,320

933

933

74,125

2,391

147,000

Jan.

926

*683

280

277

111

277

277

252

233

1,2§5

2,020

2,020

2,000

2,000

*2,150

3,200

3,480

3,750

4,010 

3,980

3,980

3,970

3,970

3,960

3,960

3,940

3,940

3,930

3,920

3,920

3,900

76,772

2,477

152,300

Feb.

*5.900

3,890

3,880

3,860

3,890

3,860

3,850

3,850

3,850

3,840

3,880

3,260

2,480

2,470

*2,470

2,470

2,470

2,460

2,460 

2,460

2,460

2,450

2,450

2,450

2,450

2,090

1,480

1,250

-

-

-

82,630

2,951

163,900

Mar.

*1 , 000

1,000

992

1,000

1,020

1,000

1,000

913

690

690

690

968

1,300

1,430

*1,650

1,600

1,490

1,490

1,490 

1,490

1,490

1,490

1,660

2,060

2,060

2,050

2,050

2,050

2,040

2,040

2,040

43,933

1,417

87,140

Apr.

2,040

*2 , 040

2,040

2,040

2,040

2,040

2,040

2,040

2,030

2,030

2,030

2,040

2,040

2,040

2,050

*2,050

2,000

1,960

1,960 

1,960

1,960

1,960

1,960

1,960

1,960

1,960

1,960

1,970

1,970

1,830

60,000

2,000

119,000

May

*1,550

1,360

1,350

1,360

1,350

1,340

1,350

1,340

1,550

1,430

1,570

1,610

1,600

1,700

*1,820

1,830

1,860

1,930

1,950 

1,950

1,950

1,960

1,960

1,960

1,970

1,970

1,980

2,000

1,950

1,910

1,920

53,110

1,713

105,300

June

*1,920

1,920

1,920

1,920

1,910

1,910

1,910

1,950

1,990

1,990

1,990

1,980

2,120

2,300

*2,300

2,300

2,300

2,300

2,310 

2,310

2,310

2,310

2,310

2,310

2,300

2,300

2,300

2,350

2,470

2.560

-

65,070

2,169

129,100

July

2,560

 2,570

2,560

2,550

2,540

2,520

2,470

2,470

2,470

2,520

2,610

2,610

1,910

1,410

1,510

 1,370

1,490

1,490

1,530 

1,730

1,730

1,720

1,650

1,710

1,780

1,930

1,920

1,910

1,910

1,920

1,930

62,800

2,026

124,600

Aug.

 1.930

1,910

1,900

1,920

1,770

1,760

1,750

1,750

1,740

1,730

1,710

1,690

1,680

1,670

*1,610

1,520

1,510

1,440

1,460 

1,410

1,300

1,210

1,120

1,020

955

985

978

978

955

856

774

44,991

1,451

89,240

Sept.

 690

690

690

622

586

534

480

480

475

409

361

361

311

*268

268

268

264

268

249 

228

228

228

225

213

192

192

192

194

197

199

-

10,562

352

20,950

Calendar year 1950: Max 5,020 Mln 39 Mean 1,615 Ac-ft 1,169,000

Water year 1950-51: Max 5,020 Min 39 Mean 1,679 Ac-ft 1,216,000

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 255

Little Dry Creek near Frlant, Calif.

Location. Lat 36°56'25", long. 119°40'55", in SE^ sec. 28, T, US., R. 21 E., on left 

banlc 3.5 miles southeast of Friant and 4 miles upstream from mouth.

Drainage area.--58 sq mi, approximately.

Records available. October 1941 to September 1951.

Gage. Water-stage recorder. Datum of gage is 357.02 ft above mean sea level (levels by 

 State of California).

Average discharge.--10 years, 4.50 cfs.

Extremes. Maximum discharge during year, 556 cfs Dec. 3 (gage height, 3.99 ft); no flow 

ror several months.

1941-51: Maximum discharge, 1,530 cfs Feb. 1, 1945 (gage height, 4.58 ft), from 

rating curve extended above 900 cfs by logarithmic plotting; no flow for several months 

each year.

Remarks. Records good. Flow July 11 to Sept. 30 is leakage from Friant-Kern Canal siphon.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.0

1.1

1.2

1.3

1.4 1.9

1.5 3.6

1.6 5.9

1.7 9.0

1.9 21

2.2 59

2.6 130

3.0 217

Discharge, In cubic feet per second, water year October 1950 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.

(*)

(*)

0

0

0

Nov.

0

*0

0

0

0

0

0

0

0

0

0

0

0

+0

0

0

0

.2

~26 202

*7.8

3.3

1.6

.9

.6

.4

.3

.2

.2

**.4

-

243.9

8.13

484

Dec.

0.6

.4

*153~

*158 "39

23

62

30

19

15

12

10

9.5

31

27

15

13

12

10

8.3

8.3

8.0

7.6

7.3

7.3

6.7

6.4

6.1

6.1

5.9

6.1

723.6

23.3

1,440

Jan.

5.6

5.4

5.2

5.2

4.9

 475 4.5

4.5

4.5

23

*73

67

26

18

18

42

22

43

96

43

34

29

26

24

21

20

19

18

20

20

17

763.3

24.6

1,510

Feb.

15

14

14

13

*42

*24

18

15

15

14

40

98

35

28

25

*21

19

18

15

15

14

14

*12

12

11.

12

15

15

-

-

607

21.7

1,200

Mar.

17

15

12

12

*J50

19

15

14

12

11

10

9.0

9.0

9.0

8.3

8.0

7.6

7.0

6.4

*6.4

6.4

6.4

6.1

6.1

5.9

5.6

5.4

5.2

4.7

4.5

4.3

298.3

9.62

592

Apr.

4.0

3.8

3.8

3.8

3.6

*3.2

2.9

2.7

2.5

2.2

1.9

1.6

1.4

1.4

1.3

1.2

1.2

1.2

1.5

 1.9

1.7

1.4

1.2

1.1

1.7

1.7

2.9

~6".4 12

-

78.5

2.62

156

May

4.0

279

2.7

2.3

2.0

1.9

1.5

1.3

1.1

.8

.6

.5

.5

.6

.5

.4

.3

.2

.2

.1

0

0

0

0

0

0

0

0

*0

0

0

24.4

0.79

48

June

0

0

0

July

0

0

0

0

0

0

0

0

0

0

.1

.1

**.!

.1

.1

.1

,2

.3

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

.2

.4

.1!

3.4

0.11

6.7

Aug.

"75 0.6

.4

.4

.4

.4

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.4

.3

.3

.3

.3

.3

.3

.4

.3

.3

**.3

11.9

0.38

24

Sept.

0.4

.4

.4

.4

.4

.4

.3

73

.3

.4

.3

.3

.3

.3

.3

.3

.3

.5

74

.3

.3

.3

.3

.4

.5

.4

.4

.4

.5

.4

-

10.9

0.36

22

Calendar year 1950: Max 202 Mln 0 Mean 4.16 Ac-ft 3,010

Water year 1950-51: Max 202 Mln 0 Mean 7.58 Ac-ft 5,480

Peak discharge (base. 60 cfs). Hoy. 19 (3:30 a.m.) 430 cfs (3.70 ft); Dec. 3 (4:30 p.m.) 556 cfs 

(3.99 ft); Dec. 7 (6 a.m.) 98 cfs (2.43 ft); Dec. 14 (7 p.m.) 70 cfs (2.27 ft); Jan. 11 (7 p.m.) 193 

cfs (2.90 ft); Jan. 16 (10 a.m.) 67 cfs (2.25 ft); Jan. 18 (12 p.m.) 256 cfs (3.15 ft); Feb. 5 

(12 m.) 84 cfs (2.35 ft); Feb. 12 (2:30 a.m.) 217 cfs (3.00 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.
256 SAN JOAQUIN RIVER BASIN

James bypass near San Joaquin, Calif.

Location. Lat 36°39' , long. 120°11', in SW£ sec. 1, T. 15 S., R. 16 E., on left bank 3.1 

miles north of San Joaquin.

Records available. October 1947 to September 1951. April 1929 to September 1948 in files 

or Kings Kiver Water Association.

Gage . Water-stage recorder. Altitude of gage is 165 ft.

Extremes. Maximum discharge during year, 4,600 cfs Dec. 7 (gage height, 12.53 ft); no 

now for several months.

1947-51: Maximum discharge, that of Dec. 7, 1950; no flow for several months each 

year.

Maximum flow since April 1929, 4,780 cfs May 19, 1938, from records of Kings River 

Water Association. Other flood peak discharges from records of same organization, 

3,280 cfs Feb. 6, 1945, 3,070 cTs Dec. 15, 1937.

Remarks. Records good. Diversions above station for irrigation. James bypass carries 

overflow from Kings River to San Joaquin River.

Cooperation. Seven discharge measurements furnished by Bureau of Reclamation, and two by 

Kings Kiver Water Association.

Discharge, In cubic feet per second, water year October 1950 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.

(*)

(*)

0

o

0

Nov.

0

TJ

0

0

0

*o

o

0

0

o

0

0

o

o

0

0

0

0

*o

0

523

*1,960

*3,520 

3,280

2,330

1,470

*661

188

*23

14

-

13,969

466

27,710

Dec.

8.7

5.5

4.6

4.9

348

2,570

*4,330 

3,260

2,490

"2,860

"2,500

1,370

661

230

63

79

530

191

43

20

15

26

27

14

8.5

6.6

5.5

4.3

4.2

57S

5.0

21,689.8

700

43,020

Jan.

4.6

4.3

3.5

3.5

3.1

2.1

1.3 

.9

.7

.6

.5

.4

.1

.1 *o

0

0

0

0

0

64

5Z

8.1 

3.0

1.1

*.3

O

0

o

0

o

154.2

4.97

306

Feb.

(*)

0

0

0

Mar.

(*)

(*)

0

o

0

Apr.

(*)

(*)

0

0

o

May

0

TJ

o

0

0

0

*0 

0

o

o

0

0

0

0

0

0

0

o

0

0

0

0

0 

0

o

0

0

*119

160 T3~8"

30

447

14.4

887

June

*9. 6

4.4

2.7

.7

0

0

0

o

o

0

0

0

0

0

0

0

0

0

0

0

o

0

0 

0

0

o

0

o

0

*o

-

17.4

0.58

35

July

O

0

0

Aug.

0

0

O

Sept.

0

0

O

Calendar year 195O: Max 4,33O Mln 0 Mean 1OO Ac-ft 72,750

Water year 1950-51: Max 4,330 Mln 0 Mean 99.4 Ac-ft 71,960

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 257

San Joaquin River near Mendota, Calif.

Location. Lat 36°48'35", long. 120°22'35", in s| sec. 7, T. 13 S., R. 15 E., on left bank 

a.b miles downstream from Mendota Dam and 4 miles north of Mendota.

Drainage area.--4,510 sq mi , approximately. 

Records available. October 1939 to September 1951.

Gage. Water-stage recorder. Datum of gage is 142.53 ft above mean sea level (levels by 

Bureau of Reclamation).

Average discharge.--12 years, 1,284 cfs.

Extremes. Maximum discharge during year, 4,390 cfs Dec. 18 (gage height, 9.41 ft); minimum, 93 cfs Nov. 10.

1944-51: Maximum discharge, 6,440 cfs June 19, 1945; maximum gage height, 10.12 ft 

Feb. 8, 1945; minimum discharge, 5.2 cfs Feb. 16, 17, 1950.

Remarks.--Records fair. Discharge measurements generally made twice a month. Flow regulated by Mendota Dam and several reservoirs and power plants above station. Many diversions above station for irrigation. Concerning regulation and diversions see Remarks 

for stations upstream.

Cooperation. nineteen discharge measurements furnished by Bureau of Reclamation.

Discharge, in cubic feet per second, water year October 195O 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.

185

182

180

180

180

182

180

178

175

172

182

195

198

198

198

192

188 

180

165

163

158

153

151

151 

151

139

123

128

130

130

128

5,195

168

10,300

Nov.

130

132

130

128

128

125

121

119

103

95

95

114

130

134

134

132

128 

125

446

571

230

731

2,090

5.090 

2,930

2,180

1,270

486

195

228

-

16,650

555

33,020

Dec.

216

129

95

98

144

1,060

3,070

3,840

3,430

2,910

2,950

2,470

2,130

2,490

3,070

3,650

4,110 

4.560

4,270

4,200

4,190

3,840

3,540

2,960 

2,660

2,600

2,520

2,530

2,510

1,820

1,120

78,982

2,548

156,700

Jan.

928

824

789

624

441

569

528

500

281

257

228

1,050

1,680

1,790

1,760

1,780

2,100 

2,770

3,000

3,300

3,460

5.570

5,450

3,440 

3,480

3,440

5,440

5,450

5,480

5,490

5,550

62,859

2,027

L24, 700

Feb.

5,520

3,520

3,520

3,520

3,540

5.560

3,540

3,540

3,480

3,440

3,440

3,540

3,560

2,730

2,380

2,370

1,920 

1,820

2,090

2,120

2,120

2,120

2,110

2,080 

2,070

2,060

1,360

1.010

_

_

-

76,070

2,717

L50, 900

Mar.

1.040

978

907

847

751

638

534

480

325

180

19S

182

168

160

168

175

182 

190

218

252

222

156

121

123 

150

198

285

288

288

291

500

10,972

354

21,760

Apr.

300

294

270

268

506

312

312

309

506

303

288

276

276

276

273

258

258 

228

205

205

205

205

215

220 

218

210

210

215

225

220

7,646

255

15,170

May

202

188

188

168

160

158

i58

158

155

170

185

195

212

210

208

195

182 

195

212

212

215

200

215

228

230

228

228

230

235

235

252

6,185

200

12,270

June

255

25?

252

252

255

262

258

252

252

258

260

268

291

500

285

276

276 

270

270

270

291

291

509

527 

327

324

550

563

381

578

8,615

287

17,090

July

578

581

584

587

587

590

590

590

593

390

584

387

393

396

578

578

375 

581

590

402

417

420

414

411 

408

399

396

396

396

596

578

12,165

592

24, 130

Aug.

581

390

387

384

384

381

581

381

396

444

444

441

438

420

411

402

399 

387

590

584

587

384

372

542 

542

542

550

500

500

288

270

11,682

577

25,170

Sept.

265

258

235

220

208

188

168

170

175

170

165

168

170

170

168

165

160 

156

146

Ml

144

170

168

168 

168

172

170

160

160

160

5,306

177

10,520

Calendar year 1950 : Max 4,360 Min 5.2 Mean 443 Ac-ft 320,500

Water year 1950-51 : Max 4,360 Min 95 Mean 828 Ac-ft 599,700
258 SAN JOAQUIN RIVER BASIN

Panoche Creek below Silver Creek, near Panoche, Calif.

Location. Lat 36°37'10", long. 120°40'25", in sw£ sec. 16, T: 15 S., R. 12 E., on right 

bank 1.1 miles downstream from Silver Creek, 9 miles east of Panoche, and 18 miles 

southwest of Mendota.

Records available.--October 1949 to September 1951.

Gage.--Water-stage recorder and concrete control. Datum of gage is 558.26 ft above mean 

sea level, datum of 1929.

Extremes. Maximum discharge during year, 148 cfs Oct. 26 (gage height, 2.59 ft); no flow 

for several months.

1949-51: Maximum discharge, 2,510 cfs Sept. 19, 1950 (gage height, 6.25 ft, from 

floodmarks), from rating curve extended above 5 cfs on basis of slope-area determination of peak flow; no flow for several months each year.

Remarks. Records fair except those for Oct. 1-23 and Feb. 14-16, which are poor.

Rating tables, water year 195O-51 (gage height. In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 15

1.3

1.4

1.5

1.6

0 

.2

1.0 

2.4

1.7

1.8

1.9

4.5 

8.3

1.3

1.4

1.5

1.6

Nov. 16 to Feb. 14

0 1.7

1.8

1.9

2.0

1.1 

1.7 

2.6 

3.8

Feb. 16 to Sept. 3O

0.8 O 1.1

.9 .1 1.2

1.0 .3 1.3

0.8 

1.9 

3.5

Discharge, In cubic feet per second, water year October 195O 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

35

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

*.l

.1

.1

7.7

*11

1.8

1.1

.5

.2

25.2

0.81

50

Nov.

0.2

.2

.2

~B ]_

*.l'.Z

.2

.1

.1

.1

.1

.2

.1

*.l!i

.2

.3

*.ii

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

-

6.4

0.21

13

Dec.

0.4

.4

.5

.5

.4

1.4

2.8

.9

.6

.6 

*.6

.5

.6

.6

.6

.5

.5

.5

.6

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

20.5

0.66

41

Jan.

0.5

.5

.6

*.6

.6

.6

.6

.6

.6

1*8

1.1

.9

.9

1.3

1.0

.9

1.0

.9

.8

.8

.8

.8

.8

.8

.8

.9

1.0

1.0

.9

28.4

0.92

56

Feb.

0.8

.8

.8

.8

1.0

*T£

1.0

1.0

1.0

1.0

1.0

el.O

e.8

*e.7

.6

.6

.6

.6

.8

.9

1.1

1.1

.9

.9

1.1

1.1

_

.

-

25.1

0.90

50

Mar.

*1.4

LJ.

1.2

1.0

1.0

.9

.8

.7

1.0

1.2 

.8

.6

.6

.6

.5

.5

.4

.4

.3

.4

.3

.4

.3

.3

.3

0

it.2

.2

.2

.2

19.8

0.64

39

Apr.

0.2

.2

.3

.3

*.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

-

4.3

0.14

8.5

May

0.1

t ]_

.1

.1

.1

.1

!i.1

.1.1.1.1.1

.1

0

0

0

0

0

o

0

o

0

0

0

0

0

0

0

1.6

0.05

3.2

June

(**)

0

0

0

July

O

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 160 Mln 0 Mean 0.84 Ac-ft 609

Water year 1950-51: Max 11 Mln o Mean 0.36 Ac-ft 261

Peak discharge (base. 50 cfs). Oct. 26 (1O:30 p.m.) 148 cfs (2.59 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.

e Stage-discharge relation Indefinite; discharge Interpolated.

Note. No gage-height record Oct. 1-23; discharge estimated.
SAN JOAQUIN RIVER BASIN 259

San Joaquin River near Dos Palos, Calif.

Location. Lat 36°59'40", long. 120°30'00", in Nj sec. 12, T. 11 S., R. 13 E., on left 

bank 0.7 mile downstream from head of Temple Slough and 7 miles east of Dos Palos.

Drainage area.--5,630 sq mi, approximately. 

Records available.--October 1940 to September 1951.

Sage. Water-stage recorder. Datum of gage is 116.5 ft above mean sea level (Corps of 

Engineers bench mark). Prior to Nov. 27, 1946, at site 0.6 mile upstream at same 

datum.

Average discharge.--11 years, 1,002 cfs.

Extremes. Maximum discharge during year, 4,140 cfs Dec. 19 (gage height, 10.67 ft); minimum, 0.2 cfs Nov. 4-18.

1944-51: Maximum discharge, 5,630 cfs Feb. 9, 1945 (gage height, 11.97 ft, site then 

in use); no flow at times in 1945-46, 1948, 1950.

Remarks. Records fair. Some regulation by reservoirs and power plants above station. 

Practically entire flow of river and tributaries diverted during irrigation season. 

Concerning regulation and diversion see Remarks for stations upstream.

Cooperation.--Twenty-two discharge measurements furnished by Bureau of Reclamation.

Discharge, in oubio feet per second, water year October 195O to September 1951

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

ao

21

22

23 

24

25

26

27

28

29

50

31

Total

Mean

Ac- ft

Oct.

0.5 

*.5

.5

.5

.5

*.5

.5

.6

.6

.6

.6

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

"/?

.7

.7

.6

.'5 .5

"^.4

17.6

0.57

35

Nov.

*0.3 

.5

.5

if

.2

*.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

4.2

226

345

*221

759 

2,050

*2.800

2,410

1,720

910

322

*140

-

11,909.1

397

25,620

Dec.

146 

133

104

77

*71_

147

1,090

2,940

*3,420

2,810

*2,500

2,450

*2,050

2,010

2,360

2,960

3,460

*3,920

*4 . 120

4,050

4,070

3,960

3,650 

5,200

2,730

*2, 600

2,520

2,480

2,520

2,320

1,620

72,468

2,358

145,700

Jan.

1,160 

*972

886

819

595

448

377

329

288

266

255

*300

1,120

1,600

*1,690

1,710

1,790

2,350

2,800

5,040

5,520

*5,500

5.510 

5,450

5,470

5,470

3,420

3,420

5,450

3,430

5,470

60,645

1,956

120,500

Feb.

*5,470 

3,450

3,450

5,440

5,470

5,470

5,470

5,460

5,450

5,590

5,570

3,410

5.510

5,140

2,480

2,250

2,180

1,650

*1,900

2,040

2,060

2,070

2,050 

2,040

2,040

2,050

1,890

995

_

-

75,605

2,700

150,000

Mar.

1.020 

*995

936

873

819

708

607

497

594

217

162

*152

84

75

66

65

61

55

27

5.8

3.1

2.6

2.4

1.7

1.7

 1.7

1.9

2.4

2.6

2.6

2.6

7,820.1

252

15,510

Apr.

H2.8

2.8

*3.1

5.5

5.8

5.8

12

5.4

4.7

4.7

4.4

4.0

4.0

3.8

3.5

3.3

3.3

3.1

5.1

2.8

5.1 

3.3

3.5

5.5

5.5

5.5

5.5

3.8

-

114.6

3.82

227

May

*3.8 

5.5

5.1

2.8

2.4

2.6

*2.4

2.6

2.8

3.1

3.1

3.5

3.3

3.5

3.3

5.5

5.5

4.0

5.5

5.1

5.1

5.3

2.6 

1.7

1.7

1.9

2.2

*2.2

2.4

2.6

2.6

89.5

2.89

178

June

2.8 

2.6

2.6

2.6

2.2

1.6

*1.7

1.6

1.4

1.5

1.2

1.0

1.2

1.2

1.5

1.2

1.5

1.2

1.2

1.2

1.2

1.6

1.6 

2.2

3.5

*4.4

4.7

5.8

17_

6,1

-

80.5

2.68

160

July

5.5 

5.8

5.8

5.8

4.4

4.0

4.4

4.7

4.4

*4.7

4.7

5.0

H

1.9

1.6

1.6

1.6

1.7

1.9

2.4

3.1

3.5 

3.3

3.5

5.5

5.8

5.8

4.0

5.8

4.0

109.6

5.54

217

Aug.

4.0 

4.4

4.4

4.7

4.7

*5.0

5^4.

5.4

5.4

5.0

5.5

2.6

1.9

1.7

1.4

1.5

1.2

1.0

1.0

1.0

1.0

1.0

1.0 

1.0

.9

.9

.9

1.0

.9

.9

.tl

75.3

2.43

149

Sept.

is

.5

.4

.5

.5

.5

.5

.5

*.7

.7

.7

.7

.5

.5

.5

.5

.5

.5

.4

.4

.5 

.7

.7

.7

.7

.7

.7

.5

~

17.6

0.59

55

Calendar year 1950 : Max 4,120 Mln 0 Mean 242 Ac-ft 0.74,900

Water year 1950-51 : Max 4,12o Mln 0.2 Mean 627 Ao-ft 454,100

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN

Fresno River near Knowles, Calif.

Location, --Lat 37°14', long. 119°46', in NW-£ 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 1951.

Gage.--Water-stage recorder and concrete control. Datum of gage is 1,086.4 ft above mean 

sea level (river-profile survey). Prior to June 13, 1930, staff gage 10 ft upstream 

at different datum. June 13, 1930, to Jan. 13, 1931, at site 40 ft upstream at datum 

about 0.34 ft lower.

Average discharge.--36 years (1911-12, 1916-51), 78.8 cfs.

Extremes.--Maximum discharge during year, 8,540 cfs Nov. 19 (gage height, 9.31 ft); mini- 

 mum, 0.1 cfs Sept. 17, 19.

1911-13, 1915-51: Maximum discharge, that of Nov. 19; no flow at times in 1919, 

1924, 1926, 1928-31, 1933-34, 1947, 1948, 1950.

Remarks.--Records good. Water diverted into Fresno River basin above station from San 

joaquin and Merced River basins. Small diversions above station for irrigation.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second) 

ec. 7-12)

Oct. 1 to Nov

(Shifting-control method 

19, Dec. 7 to Sept. 30

0.7 

.8

1.0

1.1

0.1 

.3 

1.2 

3.0 

6.0

1.2

1.3

1.4 

1.6 

2.0 242

2.5 500

3.0 830

4.0 1,720

5.6 3,380

Hov

1.4 18

1.7 84

2.0 180

2.5 400

19 to Dec. 6

3.0 710

4.0 1,590

5.6 3,380

Discharge, in cubic feet per second, water year October 1950 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.

1.1

1.1

.8

*T5

.3

1.1

1.1

1.2

1.2

1.2

1.1

1.4

.9

.8

.8

1.0

1.2

1.2

1.6

1.4

1.7

1.9

1.6

2.3

*2.6

4.3

36

IT

8.8

6.4

7.2

111.7

3.60

222

Nov.

12

7.6

*6.0

5.4

5.1

4.5

4.5

4.2

BTT

5.1

5.1

6.4

8.0

23

23

15

26

1,470

3,300 256"

133

90

74

59

52

46

41

37

*31

35

-

5,800.0

193

11,500

Dec,

44

37

1,640

*1,870 2W

202

432

297

187

132

106

84

75

262

212

137

117

98

91

87

80

75

72

69

66

69

*69

66

69

69

69

7,181

232

14,240

Jan.

66

64

61

61

61

58

56

BT

56

78

111

*98

80

77

69

117

91

418

668 '2T4

170

153

149

129

117

106

102

91

95

102

80

3,884

125

7,700

Feb.

75

69

66

64

*20T

137

113

102

98

95

142

264

TC5

149

*137

125

110

110

98

95

98

95

*87

80

77

91

102

91

_

-

3,142

112

6,230

Mar.

113

102

80

109

264

216

182

165

153

141

125

125

129

129

121

117

117

110

*102

102

98

91

87

84

80

77

OT

121

125

133

133

3,841

124

7,620

Apr.

129

125

117

*113

113

110

110

106

102

98

98

95

91

87

84

84

84

95

102

102

98

98

*102

102

110

106

98

181

238

T37

3,335

111

' 6,610

May

141

145

149

178

T57

145

137

137

149

149

145

141

137

141

125

125

121

125

117

117

113

113

106

102

98

95

87

80

77

72

69

3,793

122

7,520

June

69

m

64

61

61

*61

61

58

56

53

51

47

47

43

41

39

39

37

37

39

35

35

33

32

30

30

30

27

26

25

-

1,333

44.4

2,640

July

25

25

*23

23

22

20

19

19

19

18

17

18

18

17

15

16

15

14

13

12

12

12

12

11

9.6

9.2

9.2

8.8

8.4

8.4

*8.0

474.6

15.3

941

Aug.

7.2

ETT

3.9

4.2

3.6

3.9

3.6

3.6

3.0

3.0

2.8

2.6

2.6

2.6

2.5

1.7

1.9

1.7

1.4

1.4

1.4

1.4

1.6

1.6

1.7

1.6

1.6

1.4

1.2 *T72-

1.2

78.2

2.52

155

Sept.

1.9

2.1 2TT

2.1

1.9

2.1

1.6

1.4

1.1

.9

1.0

.8

.6

.5

.3

.2

.1

7?

.1

.2

.3

.4

.5

.6

*.7

.7

.7

.7

.8

1.1

-

27.7

0.92

55

Calendar year 1950: Max 3,300 Min 0 Mean 76.4 Ac-ft 55,310

Water year 1950-51: Max 3,300 Min 0.1 Mean 90.4 Ac-ft 65,430

Peak discharge (base, 590 cfs).--Nov. 19 (2 a 

(7.30 ft); JanT 18 (11:30 p.m.) 1,550 cfs (3.81 

* Discharge measurement made on this day.

.m.) 

ft).

8,540 cfs (9.31 ft); Dec. 4 (1:50 a.m.) 5,600 cfs
SAN JOAQUIN RIVER BASIN 261

Fresno River near Daulton, Calif.

Location. Lat 37"05'50", long. 119"53'20", in NW£ sec. 3, T. 10 S., R. 19 E., on left bank 

u.b mile downstream from Willow Creek and 5.3 miles southeast of Daulton.

Drainage area. 270 sq mi.

Records available. October 1941 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 385 ft (from topographic map). Prior to 

 Sept. 27, 1946, at site 300 ft downstream at different datum. Sept. 27, 1946, to Sept. 

28, 1949, at datum 2.37 ft higher.

Average discharge. 10 years, 92.9 cfs.

Extremes.--Maximum discharge during year, 10,700 cfs Nov. 19 (gage height, 10.36 ft), from 

rating curve extended above 5,500 cfs by logarithmic plotting; no flow during several 

months.

1944-51: Maximum discharge, that of Nov. 19, 1950; no flow at times in 1945, 1947-51.

Remarks. Records fair. Water is diverted into Presno River basin above station from San 

joaquin and Merced River basins. Small diversions above station for irrigation. Some 

regulation at low flow by mining operations above station.

Cooperation. Thirteen discharge measurements furnished by Bureau of Reclamation.

Discharge, In cubic feet per second, water year October 1950 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.

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~~&. 2

5.6

8.0

37.8

1.22

75

Nov.

8.0

13

*8.0

e6

e5

e4

eT

e4

e4

e5

e5

e5

*e5

elO

e25

e20

e25

e300

5,130

*61S

302

162

118

90

76

66

58

*53

48

49

-

7,224.0

241

14,330

Dec.

64

54

*1, 23TT

*3,490

595

324

*842

556

430

295

235

194

172

312

474

265

221

*196

179

156

142

129

122

114

114

110

*100

98

102

102

102

11,579

374

22,970

Jan.

92

89

89

92

89

87

80

W

80

108

202

*323

136

126

*142

244

196

271

1,180

4739"

287

257

261

230

213

201

185

174

168

191

162

6,444

208

12,780

Feb.

150

142

137

135

*349

287

210

182

174

165

204

622

3TT

250

230

*210

185

179

168

157

157

162

*144

133

124

133

150

154

_

-

-

5,604

200

11,120

Mar.

154

154

128

128

*361

340

261

233

220

204

188

176

174

176

162

160

160

150

*137

135

135

135

126

119

119

113 TT5-

140

142

147

147

5,239

169

10,390

Apr.

142

140

133

*126

122

122

128

128

124

122

119

115

109

111

111

*109

106

TIT

115

124

122

115

*111

119

119

124

111

107

310

T74

-

3,829

128

7,590

May

144

*147

157

165

188

154

126

133

147

130

119

122

113

119

*138

125

127

132

132

127

115

108

110

120

127

120

104

91

82

95

80

3,897

126

7,730

June

70 £5"

57

54

57

*59

60

54

53

53

54

52

51

*47

44

41

38

37

37

36

37

35

34

32

30

29

28

27

26

25

-

1,320

44.0

2,620

July

24'23

*22

22

21

20

20

19

18

18

17

17

16

16

15

*14

14

13

12

10

9.7

9.7

9.3

8.9

*8.1

6.9

6.5

6.5

5.8

5.4 5T4"

432.2

13.9

857

Aug.

5.1 TTB"

*3.4

2.3

2.3

1.8

1.6

1.3

1.3

.8

.6

.6

.5

.4

*.4

.4

.4

.2

.2

.1

.1

.]

.1

.1

.1

.1

0

TS

0

*0

0

29.1

0.94

58

Sept.

(*)

(*)

-

0

o

0

Calendar year 1950: Max 5,130 Mln 0 Mean 97.2 Ac-ft 70,400

Water year 1950-51: Max 5,130 Mln o Mean 125 Ac-ft 90,520

Peak discharge (base, 500 efs).--Nov. 19 (4 a.m.) 10,700 cfs (10.36 ft); Dec. 4 (4 a.m.) 8,540 cfs 

(9.49 ft); Dec7 7 (9 a.m.) 1,070 cfs (4.30 ft); Dec. 14 (12 p.m.) 684 cfs (3.73 ft); Jan. 12 (2:30 

a.m.) 518 cfs (3.59 ft); Jan. 19 (2:30 a.m.) 1,970 cfs (5.38 ft); Feb. 5 (6 p.m.) 564 cfs (3.69 ft); 

Feb. 12 (7 a.m.) 884 cfs (4.13 ft).

* Discharge measurement made on this day.

e Stage-discharge relation Indefinite; discharge estimated on basis of 2 discharge measurements and 

records for Fresno River near Knowles.

256498 O - 53 - 18
262 SAN JOAQUIN RIVER BASIN

Chowchilla River at Buchanan dam site, Calif.

Location (revised). Lat 3V°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 1951.

Sage.--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.--21 years (1930-51), 104 cfs

Extremes. Maximum discharge during year, 22,500 cfs Nov. 18 (gage height, 15.06 ft), from 

rating curve extended above 6,000 cfs on basis of slope-area determination of peak flow; 

no flow during several months.

1921-23, 1930-51: Maximum discharge, that of Nov. 18, 1950; no flow for part of 

each year except 1937, 1938, 1940-43.

Remarks. Records good except those for periods of fragmentary or no gage-height record, 

which are fair. No storage or large diversion above station.

Revisions (water years).--W 931: 1932(P), 1936-38(P).

Rating table, water year 1950-51 (gage height, in feet,

1,190

1,900

2,790

6,040

Discharge, In cubic feet per second, water year October 1950 to September 1951

and discharge, in oubio feet per second) 

(Shifting-control method used Aug. 1-14)

.2

.5

.9

.5

1.0

1.2

1.5

1.8

2.2

3.4 2 5

6.2 3

12 3

22 4

43 5

0

5

0

0

68

128

215

335

680

6.0

7.0

8.0

10.1

Day

1

2

3

4 

5

6

7

8

9

10

11

12

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

(J

0

0 

0

0

0

0

0

0

0

0

0

0

7.9

20

14

*f5,300

36.000 

3750

3350

3180

126

94

74

59

50

*46

42

44

-

13,156.9

439

26,100

Dec.

50

45

2,7'50

*4.240 

515

375

31,000

3650

526

407

335

284

251

*383

441

265

219

191

168 

152

141

134

125

119

115

107

101

97

96

94

95

14,582

470

28,920

Jan.

89

82

82

89 

82

76

74

71

70

ioT

296

476

219

170

*155

256

195

550

1,500 

513

372

322

305

272

247

230

211

197

197

219

186

7,905

255

15,680

Feb.

168

158

152

149 

456

336

243

205

188

177

282

"255 505

247

*221

201

184

179

167 

160

158

167

152

141

131

139

165

160

_

_

-

5,889

210

11,680

Mar.

170

179

146

154

560

386

280

236

221

203

182

172

170

165

157

150

144

134

*127 

124

119

115

110

107

103

101

97

95

92

90

_89

5,178

167

10,270

Apr.

86

82

82

82 

79

76

75

72

69

67

64

59

56

56

54

52

52

52

52 

56

52

49

47

46

45

56

51

65

258

134

2,130

71.0

4,220

May

*92

78

70

72 

84

70

63

57

53

49

46

44

43

46

45

41

39

37

30 

31

30

28

28

26

25

24

22

20

18

17

*TT

1,345

43.4

2,670

June

16

15

15

14

14

13

13

13

13

10

4.7

4.2

6.5

8.8

8.8

8.5

7.7

7.2

6.5 

6.5

4.7

7.0

7.2

6.9

5.0

6.0

4.0

1.9

1.4

1.2

250.7

8.36

497

July

1.1

T7o

1.0

l!o

1.1

1.1

1.0

1.0 1.1

1.0

1.1

1.0

.9

.7

.7

.7

.6

.5 

.5

.4

.4

.4

.3

.3

.2

.1

.1

.1

.1

O

20.6

0.66

41

Aug.

(*)

0

0

0

Sept.

0

0

0

Calendar year 1950 : Max 6,000 Min 0 Mean 113 Ao-ft 81,940

Water year 1950-51 : Max 6,000 Min 0 Mean 138 Ao-ft 100,100

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Presno River near Daulton and 

South Pork Merced River near El Portal.

f Fragmentary gage-height record; discharge estimated on basis of partial record md peak stage.
SAN JOAQUIN RIVER BASIN 263

Salt Slough near Los Banos, Calif.

Location. Lat 37 e09'35", long. 120"48'45", on left bank in Sanjon de Santa Rita Grant at 

san LUis Ranch, 7 miles north of Los Banos, Merced County.

Records available. December 1940 to September 1951.

Gage. Water-stage recorder. Datum of 

 Bureau of Reclamation).

ge is 70.60 ft above mean sea level (levels by

Average discharge . 10 years (1941-51), 238 cfs.

Extremes. Maximum discharge during year, 689 cfs Dec. 23 (gage height, 7.12 ft); minimum, 

3V ci's Sept. 23.

1944-51: Maximum discharge, 1,200 cfs May 18, 1945 (gage height, 8.32 ft); minimum, 

8.5 cfs Sept. 8, 1950.

Remarks. Records fair. Plow regulated by irrigation operations above station. Salt 

 siough is a continuation of Pick Anderson Slough system. Discharge measurements generally made twice a month.

Cooperation. Ten discharge measurements furnished by Bureau of-Reclamation.

Discharge, in cubic feet per second, water year October 1950 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

Ao-ft

Oct.

51

47

46

45

49

*55

59SB57

52

57

55

49

48

53

49

46

44

41

39

41

40

39

*39

3_8

45

48

44

43

44

46

1,467

47.3

2,910

Nov.

48

49

52

57

52

46

*44

4T

49

53

55

54

54

53

51

49

49

49

52

54

55

54

60

61

59

89

*256

232

157

98

-

2,136

71.2

4,240

Dec.

70

57

48

43

40

42

41

64

228

509

571

507

351

218

138

118

213

451

*584

626

647

665

685

aSTo"

a600

a520

*a440

403

380

377

365

10,671

344

21,170

Jan.

276

186

142

118

104

97

95

*93

97

95

101

102

98

95

166

212

221

*227

291

400

485

565

*605

624

551

624

620

609

598

582

580

9,728

314

19,300

Feb.

*580

584

577

573

582

578

582

590

594

596

588

592

594

607

615

499

388

341

263

*245

269

275

272

269

265

263

263

249

_

-

-

12,691

453

25,170

Mar.

168

*T2T

119

115

110

102

102

106

106

99

94

*94

98

96

101

105

101

97

86

37

89

93

97

104

124

126

104

92

87

87

91

3,204

103

6,360

Apr.

99

101

94

105

108

*97

99

107

112

111

160

T4T

139

131

134

136

130

119

119

118

115

107

103

102

112

111

113

120

134

143

-

3,520

117

6,980

May

146

153

156

TW

147

143

,131

*108

95

82

76

78

75

77

81

76

80

76

68

69

67

78

82

78

65

61

5T

77

*85

87

87

2,894

93.4

5,740

June

82

76

68

67

91

72

*60

76

76

73

72

61

60

63

59

55

50

57

60

55

56

53

53

53

52

*57

51

53

57

51

-

1,864

62.1

3,700

July

54

55

83

77

76

69

77

83

85

*91

91

92

95

BT

94

87

70

65

61

61

63

72

76

*79

84-

84

90

89

76

73

69

2,419

78.0

4,800

Aug.

59

57

76

81

73

*64

66

70

75

70

75

79

83

138

124

-9T 144

78

73

73

73

71

71

74

69

66

61

68

*80

83

82

2,456

79.2

4,870

Sept.

84

83

91

123 ~5G

85

117

119

114 100'

*95

95

88

82

61

54

53

51

68

65

47

39

38

3S

*41

47

44

43

45

43

-

2,349

71.6

4,260

Calendar year 1950= Max 685 Mln 9.0 Mean 80.6 Ac-ft 58,400

Water year 1950-51: Max 685 Kin 38 Mean 151 Ac-ft 109,500

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range In stage and records for 

San Joaquln River near Dos Palos.
264 SAN JOAQUIN RIVER BASIN

San Joaquin River at Fremont Ford Bridge, Calif.

Location. Lat 37°19', long. 120°56', in Orestimba Grant, on left bank 150 ft downstream 

TromTremont Ford Bridge, Merced County, 2 miles downstream from Salt Slough, 5 miles 

west of Stevinson, and 5.7 miles upstream from Merced River.

Drainage area. 8,090 sq mi, approximately.

Records available. October-1944 to September 1951 in reports of Geological Survey. February iaoy to September 1951 in reports of Division of Water Resources, Department of 

Public Works, State of California.

Gage.--Water-stage recorder. Datum of gage is at mean sea level, unadjusted. Prior to 

Uec. 8, 1949, on downstream side of Fremont Ford Bridge near left bank.

Average discharge.--7 years (1944-51), 621 cfs.

Extremes.--mximum discharge during year, 3,360 cfs Jan. 24; maximum gage height, 68.81 

Tr~Dee. 11 (backwater from Merced River); minimum discharge, 29 cfs Oct. 21.

1944-51: Maximum discharge, 4,140 cfs Feb. 12, 1945; maximum gage height, that of 

Dec. 11, 1950; minimum discharge, 18 cfs Oct. 18, 1949.

Remarks. Records good. Some regulation by reservoirs and power plants above station. 

see Kemarks for stations upstream. Practically entire flow of river and tributaries 

diverted during irrigation season; low flows consist mainly of return water. During 

periods of high flow, some water bypasses this station through Mud Slough.

Cooperation.--Ten discharge measurements furnished by the State of California.

Discharge, in cubic feet per second, water year October 195O 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.

58 

53

50

46

41

40

41

46

45

*43

37

36

39

45

48

52

50

45

32

3£

30

30

32

*33

41

45

48

52

57

69

74

1,388

44.8

2,750

Nov.

68 

73

68

63

68

66

60

*55

54-

T55

62

68

70

68

66

64

66

71

84

188

479

1,150

1,540

*1,510

1,530

1,900

*2,220

2,410

2,250

1,670

18,097

603

35,890

Calendar year 195O:

Dec.

1,000 

652

525

497

*5T?

*1,460

*2,140

2,230

2,400

2,690

*2,980

3,120

3,120

*2,960

2,720

2,720

2,830

*2,980

3,050

3,510

3,270

3,260

*3,230

3,210

3,180

3,050

2,810

2,610

2,480

2,410

2,380

75,886

2,448

150,500

Jan.

2,230 

1,880

1,570

*1,350

1,210

1,140

1,040

884

788

726

698

690

TJ20"

1,240

1,860

2,120

2,100

*2,080

2,200

2,380

2,880

*3,230

3,320

3,550

3,350

3,320

3,280

3,210

3,150

3,080

3,010

64,186

2,071

127,300

Feb.

2,970 

2,960

2,940

2,920

2,930

2,940

*3,030

3,140

3,180

3,150

3,110

3,080

3,090

3,190

5,500

3,300

3,050

2,690

*2,330

2,100

2,100

2,140

2,160

2,170

2,170

*2,18O

2,180

2,160

_

-

76,660

2,738

152,100

Mar.

1,960 

1,620

1,510

1,460

1,390

1,320

1,330

1,330

1,360

1,230

1,040

*844

738

674

602

550

517

483

452

417

394

*372

354

342

331

325

302

281

279

277

259

24,343

785

48,280

Apr.

253 

*251

243

239

261

269

263

265

269

273

279

293

275

261

263

281

283

267

273

269

257

255

245

234

*228

247

255

273

333

478

-

8,135

271

16,140

«ix 3,310 Mln 23 Mean 384

May

586 

620

633

£5?

574

528

494

*424

352

302

263

234

212

199

183

171

166

T55 1641

170

176

177

174

174

190

176

170

185

216

218

190

9,111

294

18,070

June

177 

168

152

152

150

164

154

152

166

183

190

IBS

*182

156

150

152

150

147

137

144

134

140

133

137

140

139

*148

139

136

141

-

4,596

153

9,120

July

139 

133

129

129

129

136

133

134

147

152

*160

T5B" 162

159

147

143

133

110

100

94

91

88

5T

94

*100

102

106

109

109

98

96

3,811

123

7,560

Aug.

96 

92

87

33

100

111

115

127

*125

130

140

152

147

133

150

153

159

146

132

122

118

*119

126

116

120

134

137

137

147

164

165

3,993

129

7,920

Sept.

162 

170

168

16O

172

164

156

171

198

211

*207

188

188

171

160

156

152

156

158

168

160

174

182

168

152

*153

144

136

123

118

-

4,946

165

9,810

Ac-ft 278,000

Water year 195O-51: Max 3,350 Mln 3O Mean 809 Ac-ft 585,400

Discharge measurement matje on this day.
SAN JOAQUIN RIVER BASIN 

San Luis Creek near Los Banos, Calif.

265

Location. lat 37°03'55", long. 121°04'15", in San Luis Gonzaga Grant, on left bank 300 ft 

downstream from Cottonwood Creek and 11.5 miles west of Los Banos.

Drainage area.--84.7 sq ml.

Rec ords available. October 1949 to September 1951. ,.

Gage. Water-stage recorder. Altitude of gage is 231 ft (from topographic map).

Extremes. Maximum discharge during year, 2,760 cfs Nov. 19 (gage height, 5.60 ft), from 

rating curve extended above 470 cfs on basis of slope-area determination of peak flow; 

no flow for several months.

1949-51: Maximum discharge, that of Nov. 19, 1950; no flow for several months each 

year.

Remarks.--Records good except those for period of fragmentary gage-height record and those 

ror May to July, which are fair. No storage or large diversions.

Cooperation. One discharge measurement furnished by Bureau of Reclamation.

Discharge, In cubic feet per second, water year October 1950 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.

(*)

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

*616

BTT

238

57

16

*2.8

.9

.7

.6

.6

.4

.4

-

1,444.4

48.1

2,860

Dec.

*0.4

.4

f200

*f350 ~68

32

*92

207

61

29

*14

6.8

4.6

8.1

8.3

5.0

3.5

2.8

3.0

1.8

1.5

1.3

1.2

1.1

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1,110.0

35.8

2,200

Jan.

~0.9

1.0

1.0

1.0

l.O

1.0

*1. 1

1.2

1.2

1.3

1.2

1.1

1.2

1.4

1.5

1.4

*1.3

2.1

2.8

2.0

1.7

1.5

1.4

1.3

1.2

1.2

1.2

1.2

1.2

1.1

40.6

1.31

81

Feb.

1.1 l' 2

l!2

1.3

1.6

1.3

*1.3

1.3

1.3

1.2

1.3

1.2

1.2

1.2

1.3

1.2

1.2

1.3

1.4

1.3

1.5

1.6

T7S- 1.8

1.4

1.6

1.6

1.5

_

-

37.9

1.35

75

Mar.

1.5

173

1.4

5.7

14

7.3

4.8

3.7

2.8

2.0

1.7

1.7

1.7

1.7

1.7

1.7

1.8

 1.8

1.8

1.6

1.6

1.7

1.7

1.6

1.5

1.5

1.4

1.4

1.4

1.5

78.3

2.53

155

Apr.

1.6

1.7

175

1.6

1.5

 1.4

1.4

1.6

1.6

1.7

1.5

1.6

1.6

1.4

1.3

1.2

1.3

1.3

1.3

1.2

1.2

1.3

1.0

T7T

1.2

1.1

1.1

1.2

1.0

1.0

-

40.5

1.35

80

May

1.0

lii

.8

.2

.2

.1

.2

*.5

.3

.6

.6

.6

.6

.6

.5

.5

.5

.4

.4

.3

,4

.3

.4

.4

.3

0

0

0

0

0

.2

12.0

0.39

24

June

 0.4*~± u.3

.4

.4

*.4

.4

.4

.4

.4

.4

.4

.3

.2

.2

.2

.3

.3

.4

.4

.3

.2

0

0

0

0

0

0

0-

7.9

0.26

16

July

0

0

___.

.1

.1

0

0

0

o

**.!

.1

.1

o

0

0

0

0

0

0

0

0

0

.1

.1

.1

0

0

0

0

0

1.0

0.03

2.0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 616 Mln 0 Mean 7.00 Ac-ft 5,060

Water year 195O-51: Max 616 Mln o Mean 7.60 Ac-ft 5,490

Peak discharge (base, 100 cfs). Nov. 19 (5 a.m.) 2,760 cfs (5.60 ft); Dec. 3 (about 10 p.m.) 1,680

cfs (5. OS ft); Dec. 8 (4:30 a.m.) 504 cfs (3.87 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.
SAN JOAQUIN RIVER BASIN

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

Location. Lat 37"43'54", long. 119°33'28" (corrected), on right bank 10 ft downstream

 from Happy Isles Bridge, 0.4 mile downstream from Illilouette Creek, and 2.0 miles 

(revised)southeast of Yosemite National Park Headquarters, Mariposa County.

Drainage area. 181 sq mi.

Records available.--August 1915 to September 1951.

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. 36 years, 338 cfs.

Extremes.-Maximum discharge during years, 9,260 cfs Nov. 18 (gage height, 11^55 ft) from

 FaTIng curve extended above 4,000 cfs on basis of contracted-opening determination of 

peak flow at gage heights 10.4 and 11.55 ft; minimum, 3.0 cfs Oct. 16, 20-22.

1915-51: Maximum discharge, that of Nov. 18, 1950; minimum, 1.5 cfs Sept 30, 1926.

Revisions. The maximum discharge for the water year 1938 has been revised to 8,400 

cfs Dec. ii, 1937 (gage height, 10.4 ft), superseding figure published in Water-Supply 

Papers 843, 861.

Remarks. Records good except those for periods of no gage-height record, which are fair.

 Small diversion above station for Yosemite Valley water supply.

Oct. 1 to Nov. 18

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Nov. 19 to Sept. 30

1.3

1.4

1.5 

1.7 19

1.9 34

2.2 68

2.5 119

1.4 3.7

1.5 6.2

1.6 9.2

1.8 18

2.0 30

2.2 52

2.5 99

2.8 161

3.2 257

3.6 379

4.0 540

4.5 780

5.0 1,060

6.0 1,820

7.0 2,940

8.5 5,620

Discharge, In cubic feet per second, water year October 1950 to September 1951

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 

28

29 

30

31

Total

Mean

Ac-ft

Oct.

5.9

5.6 

5.6

5.3

5.3

4.8

4.6

4.4

4.2

4.2

4.0 

3.8

3.6

3.6

3.4

3.4

3.6

3.4

»3.2.

3.4

3.2

3.2

3.2 

4.0

5.0

8.6

78 

64

65 

78

97.

494.5

16.0

981

Nov.

80

72 

82

95

97

86

74

64

59

53

46 

41

38

44

a40

a60

a90

a3, 500

a5. 500

a4,500

g4,000

gl,580

*g928 

g710

g576

g514

g436 

g390

g348 

*434

-

24,537

818

48,670

Dec.

369

308 

2.500

1,310

798

1,020

1,960

2,090

1,140

808

678 

605

529

656

540

459

401

376

359

»329

323

304

293 

284

276

265

250 

240

234 

230

198.

20, 132

649

39,930

Jan.

201

215 

220

213

201

191

189

184

168

172

172 

177

172

172

a!75

8180

a!90

a250

a230

203

a200

a220

a300 

*276

254

247

240 

227

218 

201

184

6,442

208

12, 780

Feb.

184

177 

175

182

222

227

250

260

244

262

284 

279

244

237

222

210

201

196

177

*179

170

154

152 

150

146

148

146

159

-

-

5,617

201

11,140

Mar.

139

133 

150

139

146

148

141

141

143

137

137 

159

194

210

227

227

227

222

240

268

293

*279

276 

296

329

323

329 

355

if281

7,004

226

13,890

Apr.

270

270 

265

260

265

293

342

420

580

830

940 

1,030

1.060

1, 000

945

951

818

665

720

665

775

835

*808 

710

630

523

527 

640

585 

497

-

119,119

637

37,920

May

476

436 

428

463

432

412

401

451

580

808

951 

700

585

501

527

700

1,040

1,290

1,550

1,670

1,670

*1,610

1,560 

1,780

2,130

2,440

2.520 

2,350

1,930 

1,650

1,330

35,371

1,140

70,160

June

1,040

1,030 

1^130

1,110

1,060

1,100

1,080

1,060

1,040

862

987 

1,060

1,160

1,340

1,580

1,700

1,590

*1, 280

1,130

2.080

1,310

945

928 

868

884

862

846 

796

715 

650

33,223

1,110

65,900

July

675

B2B 

603

501

405

362

325

355

365

365

362

365

348

319

301

301

316

326

572

562

365

290

*252 

232

213

189

170 

157

148 

139

124

10, 633

343

21,090

Aug.

118

116 

112

105

97

85

76

66

59

53

52

50

47

43

40

39

38

42

42

42

*40

37

37 

33

30

26

24 

22

21 

19

11

1,628

52.5

3,230

Sept.

17

15 

15

14

13

12

11

10

10

8.9

9.2 

8.6

8.9

8.3

8.0

7.7

6.8

6.8

6.8

*6.5

6.5

6.5

6.5 

6.2

6.2

6.2

6.0 

6.0

5.4 

5.2

264.2

8.81

524

Calendar year 1950: Max 5,500 Mln 3.2 Mean 419 Ac-ft 303,200

Water year rear 1950-51: 1950-51: Max Max 5,500 5,500 Mln Mln 3.2 3.2 Mean Mean 451 451 Ac-ft Ac-ft 326,200 326,200

discharge (base. 1.900 cfs) . Nov. 16 (about 12 p.m.) 9.260 efs (11.55 fth Dee. 5 (2 p.m.) 

:fs (7.96 ft); Dec. 8 (5 a.m.) 2.700 cfs (6.83 ft); May 28 (2 a.m.) 2,980 cfs (7.03 ft): 

I (9:30 a.m.) 2,470 cfs (6.64 ft), 

charge measurement made on this rlmr.

Peak dlsct 

4,540 cf 

June 20 _,__ _.._. _ , wiM v v -*

* Discharge measurement made on this day.

a No gage-height recordj discharge estimated on basis of weather records and records for nearby 

streams.

g Computed from graph based on gage readings.
SAN JOAQUIN RIVER BASIN 267

Tenaya Creek near Yosemite, Calif.

Location (revised).--Lat 37°44'32", long. 119°33'25", in Yosemite National Park, on left 

oanic at Dridge, 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 1951.

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 at same site and datum.

Average discharge. 38 years (1913-51), 104 cfs.

Extremes.--Maximum discharge during year, 6,330 cfs Nov. 18 (gage height, 8.25 ft), from 

rating curve extended above 900 cfs on basis of contracted-opening determination of 

peak flow; minimum, 0.7 cfs Sept. 23-27.

1904-9, 1912-51: Maximum discharge, that of Nov. 18; minimum, 0.6 cfs Dec. 18-22, 

1929, Dec. 2, 6-15, 1940.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

No storage or diversion.

Revisions (water years).--W 861: 1937. W 881: 1938.

Discharge, in cubic feet per second, water year October 1950 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.

1.0

1.0

1.0

1.0

1.0

.9 75"

.9

.9

.9

.9

.9

.9

.9

.9

1.0

.0

* .0

.0

.0

.0

.0

.2

1.4

1.6

1.9

3.3

10

12

34

56

142.4

4.59

282

Nov.

32

29

38

38

27

21

16

14

13

12

11

10

Iff

12

12

33

87

*2,150

3,070

2,300

2,060

*737

438

318

254

208

173

146

128

*167

-

12,564

419

24,920

Dec.

135

114

1,090

557

340

503

725

1,230

5TT7

403

323

273

232

290

244

204

179

163

152

*140

130

121

115

111

106

98

91

88

84

82

T2_

8,982

290

17,820

Jan.

68

68

a75

a72

a70

a60

a60

a60

a56

a58

a57

a57

a57

a56

a58

a60

a65

a!05

a90

a75

a70

a80

a!3o *T2T

111

105

100

89

86

77

68

2,364

76.3

4,690

Feb.

63

62

60

65

84

86

102

110

97

106

114

TIT

97

89

80

71

67

65

58

*58

55

52

48

48

47

47

46

44

_

-

-

2,035

72.7

4,040

Mar.

45

42

39

TS

41

46

47

48

48

44

44

52

70

80

84

84

88

81

91

103

*114

106

108

122

132

128

138

146

154

T2F

105

2,598

83.8

5,150

Apr.

101

103

100 TOT

107

135

167

208

273

350

385

412

309" 416

398

388

341

302

314

290

317

336

336

292

*268

231

227

278

253

214

-

8,052

268

15,970

May

199

179

177

TRZ

190

193

184

216

275

341

367

280

244

216

233

314

398

480

535

535

531

*503

503

527

616

652

665

5M

484

402

322

11,549

373

22,910

June

268 '530"

237

224

216

210

204

195

182

168

165

163

168

182

186

186

168

154

*141

214

165

128

106

90

79

70

62

54

46

li

-

4,722

157

9,370

July

36

3?

29

25

23

20

18

16

15

13

13

12

11

9.8

9.2

8.6

8.2

8.0

8.0

8.4

8.0

8.0

*7.1

a.6.5

a.S

a5. 5

a5

a4.5

a4

g3.7

a3.5

385.0

12.4

764

Aug.

g5.1

*BTC

3.0

3.0

3,0

3.0

2.3

2.1

2.1

2.1

2.1

2.1

1.9

1.8

1.8

1.8

1.6 T78~

1.8

1.6

*1.6

1.8

1.9

2.1

1.9

1.6

1.6

1.8

1.8

1.9

1.6

64.6

2.08

128

Sept.

1.6

ITS

1.6

1.4

1.4

1.4

1.2

1.0

1.0

1.0

1.2

1.2

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.0

*.979"

.9

.9

.9

.9

.9

.9

.9

.9

-

32.8

1.09

65

Calendar year 1950: Max 3,070 Min Q.9 Mean ISO Ac-ft 115,500

Water year 1950-51: Max 3,070 Mln 0.9 Mean 147 Ac-ft 106,100

Peak discharge (base, 490 cfs).--Nov. IB (12 p.m.) 6,330 cfs (8.25 ft); Nov. 20 (11 p.m.) 4,010 cfs 

(7.16 ft); DecT 3 (3:30 p.m.) 2,070 cfs (5.93 ft); Dec. 8 (7:30 a.m.) 1,820 cfs (5.72 ft); Apr. 11 

(8 p.m.) 559 cfs (3.99 ft); May 25 (8 p.m.) 858 cfs (4.58 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for stations on nearby streams or 

interpolated.

g Computed from once-daily staff-gage readings.
268 MERCED RIVER BASIN

Merced River at Pohono Bridge, near Yosemite, Calif.

Location. Lat 37°43'01", 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 1951.

Gage. Water-stage recorder. Datum of gage is 3,862.66 ft above mean sea level, datum of T929.

Average discharge.--34 years (1917-51), 587 cfs.

Extremes. Maximum discharge during year, 23,000 cfs Nov. 19 (gage height, 19.98 ft, from 

rioodmark in gage house), estimated on basis of head on diversion dam for Yosemite 

powerhouse 1 mile downstream; minimum, 16 cfs Oct. 22, 23.

1916-51: Maximum discharge, that of Nov. 19, 1950; minimum, 3.3. cfs Sept. 29, Oct. 

1, 1924.

Remarks.--Records good except those for periods of fragmentary or no gage-height record, 

which are fair. Small diversion above station for Yosemite Valley water supply.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Nov. 18 Nov. 19 to Sept. 30

1.9 

2.3 

2.8

189

285

440 1.0 

1.4

0.7 1' .9 3:

1.2 6- 

1.5 10!

Note. Same as following table above 2.8 ft. 

Discharge, in cubic feet per second, water year October 1950 to September 1951

20

38

63

118

192

2.2 

2.8 

3.5 

4.0 

5.0

279 

44O 

720 

970 

1,590

7.0 3,360

9.0 5,800

11.7 11,100

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

21

21

21 

21

21

20

19

19

19

19

18

18

18

18

18

18

18

*17

17

17

17

17

18

19

31

130

107

106

115

202

1,162

37.5

2,300

Nov.

156

136

150

162 

152

136

117

102

94

86

76

69

65

78

69

107

177

f6,600

11.000

8,500

7,500

f3, 600

*1,920

f 1,420

1,100

900

800

750

f710

875

-

47,607

1,587

94,430

Dec.

806

629

6.980

4,5OO 

1,900

2,290

4,830

6,740

2,840

1,940

1,600

1,400

1,230

1,610

1,320

1,100

975

905

855

,795

*750

706

666

648

626

590

550

500

500

450

410

51,641

1,666

102, 400

Jan.

420

430

440

430 

410

390

370

350

330

340

340

340

340

340

350

360

390

600

560

540

520

560

700

*614"

554

530

518

475

461

421

379

13,802

445

27,380

Feb.

382

371

368

385 

468

472

530

578

530

574

622

610

534

503

472

437

421

411

366

*376

366

336

316

329

326

326

324

304

_

_

-

12,O37

430

23, 880

Mar.

316

300

274

314 

319

324

324

324

331

312

309

347

421

464

500

503

510

486

534

594

*657

614

614

657

755

698

730

780

860

716

598

15,465

499

30,670

Apr.

594

598

586

571 

606

702

815

925

1,190

1,580

1,750

1,910

1 . 980

1,890

1,860

1,820

1,610

1,370

1,430

1,320

1,440

1,530

*1,530

1,380

1,260

1,100

1,040

1,280

1,220

1,030

-

37,920

1,264

75,210

May

1,020

955

960

1,060 

1,030

985

950

1,030

1,250

1,590

1,820

1,390

1,200

1,070

1,060

1,300

1,780

2,110

2,430

2,580

2,570

*2, 500

2,380

2,590

3,040

3,460

5.540

3,360

2,750

2,370

1,940

58,070

1,873

115,200

June

1,560

1,480

1,570

1,510 

1,460

1,480

1,460

1,430

1,390

1,210

1,300

1,370

1,460

1,650

1,880

2,010

1,920

*1, 600

1,380

2.420

1,740

1,250

1,160

1,090

1,080

1,050

1,020

965

880

795

-

42,570

1,419

84,440

July

810

755

720

622

518

458

421

427

440

430

424

424

408

379

357

349

360

366

582

610

427

342

*302

279

261

234

209

196

184

174

161

12,629

407

25,050

Aug.

153

149

149

140 

132

121

108

98

88

82

79

77

73

70

65

62

60

62

63

63

*62

61

62

58

55

51

48

46

44

44

ii

2,467

79.6

4,890

Sept.

40

39

37

36 

34

32

32

30

29

29

28

28

27

26

26

25

25

24

23

23

*22

22

22

22

22

22

21

21

21

21

-

809

27.0

1,600

Calendar year 1950 : Max 11,000 Min 17 Mean 820 Ac-ft 593,400

Water year 1950-51 : Max 11,OOO Mln 17 Mean 811 Ac-ft 587, 4OO

Peak discharge (base. 2.90O cfsK Nov. 19 (about 1 a.m.) 23,000 cfs (19.98 ft); Dec. 3 (8 p.m.) 

15,000 cfs (13729 ft)5 Dec. 8 (8:30 a.m.) 9,850 cfs (11.16 ft); May 28 (3 a.m.) 3,980 (7.56 ft).

* Discharge measurement made on this day.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

Note. No gage-height record Nov. 19-21; Nov. 25-28, Dec. 27 to Jan. 23, Sept. 11-20, discharge 

estimated on basis of weather records and records for nearby streams.
SAN JOAQUIN RIVER BASIN

South Fork Merced River near El Portal, Calif.

Location.--Lat 37°39', long. 119°53', in NE£ see. 29 T. 33., R. 19 E., on right bank 

i,wu ft above mouth and 6.2 miles west of El Portal.

Drainage area.--239 sq mi.

Records available.--November 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,400 ft (from topographic map).

Extremes. 1950-51: Maximum discharge during period November to September, 37,600 efs 

Nov. 19 (gage height, 17.63 ft), from rating curve extended above 2,700 efs on basis 

of slope-area determination of peak flow; .minimum, 10 efs Sept. 18, 23, 24, 26.

Remarks.--Records good. No storage or large diversion above station.

Rating table, Nov. 18, 1950, to Sept. 30, 1951 (gage height, in feet, 

and discharge, in cubic feet per second)

3.1 

3.3 

3.5 

3.8 

4.1

7.8

16

63

105

4.5 

5.0 

6.0 

7.0

8.0

182

314

685

1,230

1,990

9.0

10.0

12.0

14.0

3,080

4,600

9,000

15,700

Discharge, in cubic feet per second, November 1950 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.

.

-

_

_

-

_

_

_

_

-

_

_

_

_

-

_

_

9,020

*13,900

4,440

*2,950

1,420

890

709

604

531

458

405

370

1ST

-

_

_

-

Dec.

477

360

6,140

4,320

1,430

1,210

3,380

4,260

1,770

1,190

955

824

711

1,150

984

750

640

579

535

491

458

430

408

386

364

346

326

308

308

300

279

36,069

1,164

71,540

Jan.

252

271

279

282

257

244

235

228

212 '225

*263

235

244

244

249

265

265

1,080

981

567

458

475

*563

519

461

440

419

392

379

355

323

11,662

376

23,130

Feb.

311

302

291

305

543

464

450

468

426

436

503

547.

*1M

433

402

370

355

346

314

317

320

302

294

291

279

291

291

268 ~~I 

_

-

10,383

371

20,590

Mar.

291

277

252

W

405

436

402

395

405

370

352

367

419

461

472

472

479

458

461

475

507

*458

464

479

515

483

472

503

535

4~5ti

389

13,206

426

26,190

Apr.

376

37?

383

376

376

395

450

461

622

865

930

1,020

1,050

1,010

968

990

835

690

*703

658

694

750

740

640

608

539

491

735

698

559

-

19,971

666

39,610

Calendar year : Max Mln Mean

May

527

511

527

750

690

600

575

626

730

865

924

685

583

523

531

649

840

935

1,020

99TJ

*946

870

760

830

946

924

875

780

654

575

483

22,724

733

45,070

June

389

3W

379

367

355

331

323

314

300

257

268

271

252

268

291

291

254

225

*215

356

249

241

205

178

169

158

152

138

126

115

-

7,826

261

15,520

July

114

TOT

100

93

84

79

76

71

71

67

66

63

61

57

51

49

47

46

44

55

62

44

39

*36

34

33

29

28

27

26

Z5

1,784

57.5

3,540

Aug.

23

22

21

21

20

20

20

19

19

18

18

17

16

16

16

16

15

15

15

ii

14

*15

15

15

16

16

15

14

14

14

15

524

16.9

1,040

Sept.

16

TF

15

15

14

14

13

13

13

12

12

12

12

13

13

12

11

TT

11

12

*12

11

11

11

11

11

11

12

12

13

-

375

12.5

744

Ac-ft

Water year : Max Mln Mean Ac-ft

Peak discharge (base, 1,400 cfs).--Nov. 19 (l a.m.) 37,600 efs (17.63 ft); Dec. 3 (4:30 p.m.) 

13,100 cfs (13732 ft); Dec. 8 (7 a.m.) 7,000 cfs (11.20 ft); Dec. 14 (6 p.m.) 1,560 cfs (7.49 ft); 

Jan. 18 (6:30 p.m.) 2,170 cfs (8.19 ft); May 20 (1 a.m.) 1,420 efs (7.29 ft); May 26 (12:30 a.m.) 

1,420 cfs (7.28 ft).

* Discharge measurement made on this day.
^ /u SAN JOAQUIN RIVER BASIN

Merced River at Bagby, Calif.

Location.--Lat 37°36'40", long. 120°08'00", in SE^- sec. 6, T. 4 S., R. 17 E., on downstream side of highway bridge at Bagby, 0.2 mile upstream from Flyaway Gulch. Prior 

to Nov. 20, 1950, at site 800 ft upstream.

Drainage area. 912 sq mi.

Records available. November 1922 to September 1951. Published as "at Horseshoe Bend" 

November 1922 to September 1931, and as "at Kittridge" October 1931 to September 1947.

Gage.--Wire-weight gage read twice daily. Altitude of gage is 800 ft (from topographic 

map). 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, water-stage recorder at site 800 ft upstream at datum 51.62 ft higher.

Average discharge.--25 years (1923-27, 1929-30, 1931-51), 1,328 cfs.

Extremes.--Maximum discharge during year, 83,000 cfs Nov. 19 (gage height. 72.3 ft, wireweight gage datum; 26.96 ft, last used recorder datum; from floodmarks), from rating 

curve extended above 12,000 cfs on basis of change in contents in Lake McClure; minimum daily, 34 cfs Oct. 14-23.

1922-51: Maximum discharge, that of Nov. 19, 1950; minimum, 13 cfs Oct. 5, 1925, 

site then in use.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Wo storage or-large diversion above station.

Rating table, water year 1950-5} (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 22 to Dec. 3)

47.6

47.9

48.3

49.0

37

67

135

305

50.0

51.0

52.0

54.0

690

1,320

2,270

4,850

58.0

62.0

67.0

12,000

23,200

46,000

Discharge, In oublo feet per second, water year October 1950 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

3O

31

Total

Mean

Ac- ft

Oct.

36

36

38

39

40

40

39

39

39

38

36

36 

35

34

34

34

34 

34

*34

34

34

34

34

35

38

50

300

280

270

290

500

2,594

83.7

5,150

Nov.

370

300

320

340

320

290

250

220

200

180

170

m170

160

220

400 

24,000

*43 . OOP

14,000

*15,000

5,900

3,320

2,390

2,080

1,860

*1,710

1,490

1,370

1,430

-

121,760

4,059

241,500

Dec.

1,710

1,420

18. 800

15, OOO

4,670

7,090

11, 000

14,000

6,460

4,360

3,530

3,050 

2,360

3,990

3,850

2,750

2,240 

*2, 190

1,970

1,760

1,630

1,600

1,490

1,420

1,370

1,260

1,200

1,160

972

972

1,020

126,294

4,074

250,500

Jan.

889

960

906

780

867

924

790

862

790

867

*1, 200

856 

996

966

930

1,100

996 

3,020

3.960

2,180

1,640

1,490

*1,940

1,780

1,690

1,450

1,380

1,320

1,220

1,160

996

40,905

1,320

81,130

Feb.

1,050

884

862

942

1,760

1,700

1,470

1,550

1,380

1,410

1,610

2,000 

1,730

1,510

1,360

1,380

1,220 

1,150

948

1,030

1,020

936

930

936

840

884

878

801

_

_

-

34,171

1,220

67,780

Mar.

878

867

765

790

1,630

.720

,440

,370

,370

,300

,060

,060 

,190

,350

* ,400

,340

,450 

,320

,340

,400

,420

,420

,530

,380

,540

,350

,470

,540

,670

,420

1,290

41,070

1,325

81,460

Apr.

1.130

1,220

1,210

1,160

1,180

1,240

1,390

1,450

2,010

2,670

3,030

3,220 

3,190

3.220

3,220

3,160

2,850 

2,400

*2,400

2,350

2,310

2,550

2,550

2,320

2,170

1,940

1,730

2,220

2,360

1,910

-

65,760

2,192

130,400

May

1,830

1.730

1,730

2,160

2,160

1,860

1,800

1,830

2,240

2,800

3,190

2,510 

2,110

1,830

1,810

2,050

2,870 

3,450

3,900

4,040

*3,870

3,780

3,420

3,770

4,070

4. 590

4,560

4,490

3,740

3,180

2,730

90,100

2,906

178,700

June

2,190

2,030

1,830

1,980

1,910

1,860

1,860

1,780

1,750

1,730

1,600

1,700 

1,740

1,910

2,220

2,360

2.460 

1,960

*1,700

2,340

2,410

1,730

1,720

1,320

1,200

1,190

1,130

1,060

1,020

948

-

52,638

1,755

104, 400

July

878

862

812

770

672

573

539

515

531

523

511

515 

507

499

443

421

407 

432

459

663

632

447

393

*353

329

305

284

255

245

225

225

15,225

491

30, 200

Aug.

202

200

195

192

188

175

163

155

147

133

133

119 

106

110

112

101

95 

91

88

88

81

*84

84

88

84

81

80

73

67

65

63_

3,643

118

7,230

Sept.

62

67

65

62

60

57

57

55

53

53

50

48 

47

47

45

45

43 

43

44

*43

42

42

42

40

42

40

40

40

40

40

-

1,454

49.5

2,8'80

Calendar year 1950 : Max 43,000 Mln 34 Mean 1,631 Ac-ft 1,181,000

Water year 1950-51; Max 43,000 Mln 34 Mean 1,632 Ac-ft 1,181,000

Peak discharge (base. 6.000 cfs).--Nov. 19 (4 a.m.) 83,000 cfs (72.3 ft); Dec. 3 (10 p.m.) 51,000 

cfs (67.83 ft); Dec. 8 (11 a.m.) 22,500 cfs (61.8 ft).

* Discharge measurement made on this day.

Note. No gage-height record Oct. 19 to Nov. 21; discharge estimated on basis of records for stations 

at Pohono Bridge and Exchequer, and records of change In contents In Lake McClure.
SAN JOAQUIN RIVER BASIN 271

Lake McClure at Exchequer, Calif.

Location (revised).--Lat 37°35'10", long. 120°16'05", near center of sec. 13, T. 4 S., R.

ib E., at center of upstream face of Exchequer Dam on Merced River, 1 mile east of

Exchequer and 5.5 miles northeast of Merced Palls. 

Drainage area. 1,020 sq mi.

Kecoras available. April 1926 to September 1951. 

uage.--indicator in powerhouse read every half hour when powerhouse is operating, once

cTaily at midnight, when not. Datum of gage is at mean sea level (levels by Merced

Irrigation District). 

Extremes.--Maximum contents during year, 288,000 acre-ft Dec. 3 (elevation, 709.5 ft);

minimum, 15,600 acre-ft Oct. 22-26; minimum elevation, 524.0 ft Oct. 25.

1926-51: Maximum contents, 289,400 acre-ft June 4, 1938 (elevation, 710.0 ft);

practically no storage at times in 1926, 1930, 1931, 1934. 

Remarks. Reservoir is formed by concrete gravity-type dam completed in 1926; storage

Began in April 1926. Usable capacity, 280,900 acre-ft between elevations 442.6 ft

(bottom of sluice valve) and 707.0 ft (top of spillway gates) above mean sea level.

Water passes through power plant at dam and down Merced River to diversion dam of

Merced Irrigation District's main canal. Records show total contents at 12 p.m.;

lead 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). W 881: 1926-32 (yearly summaries only).

Contents, in thousands of acre-feet, water year October 1950 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

Oct.

16.0

16.0

16.0

16.0

16.0

16.0

16.0

16.0

16.0

16.0

15.9

15.9

15.9

15.9

15.8

15.8

15.8

15.7

15.7

15.7

15.7

15.6

15.6

15.6

15.6

15.6

16.4

17.0

17.5

18.2

18.8

Nov.

19.1

19.7

20.5

21.0

21.6

22.1

22.5

22.9

23.1

23.5

23.6

23.8

24.0

24.2

24.6

24.8

25.7

75.6

167.8

197.1

226.9

240.8

246.3

248.8

250.5

252.0

253.0

253.8

254.2

254.2

Dec.

255.0

254.0

288.0

a272.0

a259.0

260.8

270.0

278.1

265.1

254.2

251.5

247.5

242.7

243.9

244.2

240.3

234.8

231.8

232.9

234.1

237.2

239.6

239.6

239.4

239.1

239.4

239.1

238.9

238.6

238.2

237.7

Jan.

237.2

238.4

240.3

242.5

244.2

246.1

247.8

249.2

250.8

252.5

252.8

253.2

252.0

250.8

249.0

245.4

243.4

246.6

248.2

243.9

243.0

243.2

243.9

244.4

244.4

240.8

240.6

240.6

242.0

242.0

241.3

Feb.

241.0

239.6

239.1

238.6

240.1

241.3

242.0

242.7

243.4

243.0

243.2

243.0

243.2

243.2

243.2

243.0

242.5

242.5

242.0

241.5

241.0

240.6

240.1

239.4

238.4

237.9

237.2

236.2

_

_

-

Mar.

235.8

235.0

234.1

233.6

235.0

236.5

237.2

237.7

237.9

238.2

237.9

237.7

237.7

237 .7

237.9

238.2

238.4

238.6

238.9

239.1

239.4

239.8

240.1

240.6

240.8

241.5

242.0

242.2

242.7

243.0

242.5

Apr.

242.0

241.5

240.3

239.8

239.8

239.6

239.6

239.6

239.6

240.6

243.4

246.6

250.0

253.2

256.5

259.8

262.0

263.8

265.1

266.4

267.7

269.5

271.1

273.1

274.2

274.7

274.7

276.3

277.8

278.6

-

May

278.9

279.1

279.1

280.2

281.6

282.1

282.4

282.6

283.2

283.7

284.5

284.0

283.5

283.5

283.2

283.2

284.0

285.4

285.9

286.4

286.4

286.7

286.7

286.4

287.0

287.0

287.0

287.0

286.7

286.4

285.9

June

284.8

284.0

283.7

283.7

283.5

283.2

283.2

282.9

282.6

282.6

282.1

281.8

281.6

281.3

281.6

282.4

282.6

282.6

282.4

282.9

283.5

282.9

281.8

281.0

280.2

278.9

277.8

276.5

275.2

273.4

-

July

271.3

269.5

267.4

265.3

283. 0

260.5

258.0

255.8

253.2

250.5

247.8

245.1

242.5

239.8

237.2

234.3

231.5

228.8

226.2

223.9

221.6

218.9

215.7

212.8

2O9.5

206.4

203.2

200.0

196.8

193.5

190.1

Aug.

186.7

183.5

180.1

176.7

173.3

170.1

167.0

163.8

160.9

158.1

155.2

152.3

149.2

146.3

143.2

140.2

137.0

133.7

130.7

127.5

124.3

121.1

118.1

115.0

112.1

109.0

106.1

103.3

100.5

97.7

95.1

Sept.

92.5

89.8

87.1

84.4

81.5

77.9

74.0

72.2

69.3

66.7

64.0

60.9

58.2

56.0

53.1

50.6

48.2

45.7

43.2

40.8

38.4

36.0

33.7

31.3

28.9

26.4

23.8

20.8

18.2

16.4

-

a No gage-height record; contents estimated on basis of records for Merced River at Bagby.

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31. ....................

Calendar year 1950 ........

Aug. 31.. ....................

Sept .30. ....................

Water year 1950-51 ........

Elevation 

(feet)t

689.7

_

525.8

Contents 

(acre-feet)

237,700

_

16,400

Change in contents 

during month 

(acre-feet)

-16,500

+219,300

-78,700

+300

t Elevation at 12 p.m.
272 SAN JOAQUIN RIVER BASIN

Merced River at Exchequer, Calif.

Location.--Lat 37°35', long. 120°17', on line between sees. 14 and 23, T. 4 S., R. 15 E., 

on right bank at Exchequer, 0.65 mile (revised) downstream from Lake McClure, 0.7 mile 

downstream from Cotton Creek, and 5 miles northeast of Merced Falls.

Drainage area. 1,035 sq mi.

Records available. November 1915 to September 1951.

Gage. Water-stage recorder at present site since Oct. 25, 1922. Altitude of gage is 400 

Ft (from topographic map). Prior to Apr. 29, 1922, staff gage, and Apr. 29 to Oct. 24, 

1922, water-stage recorder, at site 1 mile upstream at different datum.

Average discharge. 35 years (1916-51), 1,228 cfs; affected by storage in Lake McClure 

since Apr. au, 1926.

Extremes.--Maximum discharge during year, 46,200 cfs Dec. 4 (gage height, 22.6 ft, from 

rioodmarks), from rating curve extended above 13,000 cfs on basis of computation of peak 

flow over dam; minimum daily, 15 cfs Jan. 5, 6.

1915-51: Maximum discharge, that of Dec. 4, 1950; minimum, 5 cfs Jan. 5, 1935.

Remarks. Records excellent except those below 500 cfs and those for periods of no gageFTeTght record, which are good. No large diversion above station. Flow regulated by 

Exchequer power plant and Lake McClure beginning in April 1926 (see preceding page).

Cooperation. Water-stage recorder graph, furnished by Merced Irrigation District, obtained 

in connection with a Federal Power Commission project.

Rating tables, water year 195O-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1 to Nov. 23)

-0.17 '0.0

Oct. 1 to May 26

15 1.5

27 2.0

47 3.0

93 5.0

192 8.0

May 27 to Sept. 30

327

498

975

2,400

5,660

12.O 12,OOO

16.0 22,000

17.0 25,200

2.7 

3.0

810

975

Note. Same as 

preceding table 

above 3.0 ft.

Discharge, In cubic feet per second, water year October 1950 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

51

Total

Mean

Ac- ft

Oct.

48

48

48

47

47

47

46 

46

46

46

45

45

45

45

45

45

45

45 *45

50

50

48

48

47 

47

48 

47

47

48

50

48

1,452

46.8

2,880

Nov.

48

50

50

50

50

50

50 

50

50

50

50

50

50

51

51

51

51

101

62

52

52

51

1,190

1.540 

1,440

1,240 

1,250

1,240

1,250

1,270

-

11,550

585

22,910

Dec.

1,810

1,840

a4,300

*a24,000

all.OOO

6,430

7,940 

12,600

14,200

9,890

4,960

4,960

*4,800

3,530

a4,220

a5,000

aS.OOO

a5,800

al,560

al,260

a26

a497

al,490

al,490 

al,490

al,220 

al,220

al,490

1,210

1,210

1,210

145,655

4,698

288,900

Jan.

1,210

114

16

16

15

16 

16

16

16

1,210

1,500

1,540

1,540

1,860

2,900

1,890

2,150

4,560

4^360

2,120

1,500

1,500

2,170 

2,520

2,080 

1,250

1,250

1,250

1,250

1,250

42,700

1,377

84,690

Feb.

1,250

1,250

1,260

1,260

1,260

1,270

1,270 

1,280

1,400

1,660

1,540

2,570

1,550

*1,540

1,550

1,550

1,550

1,270

1,270

1,280

1,260

1,250

1,250

1,240 

1,240

1,250 

1,250

1,250

-

-

-

38,780

1,385

76,920

Mar.

1,250

1,250

1,250

1,250

1,260

31,270

1,330 

1,280

1,250

1,250

1,250

1,250

1,250

1,260

1,250

1,250

1,260

1,260

1,260

1,260

1,260

1,270

1,270

1,310 

1,280

1,280 

1,420

1,590

1,420

1,460

1.540

*40,090

1,295

79,520

Apr.

1,540

1,540

1,540

1,540

1,540

1,540

1,540 

1,540

1,540

1.480

1,570

1,600

1,600

1,600

1,610

1,590

1,570

1,580

1,580

 1,580

1,580

1,620

1.640

1,640 

1,600

1,620 

1,600

1,580

1,580

1,600

47,280

1,576

95,780

May

1,600

1,600

1,610

1,610

1,610

1,620

1,650

1,670

1,950

2,250

2,860

2,790

2,220

2,050

1,950

1,920

2,170

2,640

5,290

5,720

5,670

*5,610

5,500

3,470 

3,720

4,680 

4,470

4,520

5,750

3,420

3,050

84,580

2,728

167,800

June

2,640

2,290

2,130

2,080

2,O1O

1,950

1,920 

1,890

1,850

1,790

1,760

1,770

1,800

1,810

1,850

1,900

2,070

2,110

1,970

1,920

2,320

2,130

1,850

1,720 

1,74O

1,740 

1,740

1,780

1,790

1,810

-

58,130

1,938

115,500

July

1 , 850

1,850

1,810

1,790

1,800

1,770

1.720 

1,720

1,750

1,770

1,810

1,810

1,770

1,750

1,750

1,750

1,750

*1,740

1,750

1,780

1,780

1,780

1,810

1,820 

1,820

1,810 

1,770

1,810

1,830

1,830

1,810

55,3OO

1,784

109,700

Aug.

1,820

1.S50

1,810

1,790

1,760

1,740

1,690 

1,670

1,610

1,550

1,500

1,530

1,540

1,550

1,580

*1,600

1,620

1,620

1,620

1,620

1,610

1,600

1,580

1,550 

1,500

1,470 

1,420

1,380

1,360

1,340

1,330

49,170

1,586

97,550

Sept.

1,550

1,350

1,520

1,350

1,330

1,320

1,510 

1,510

1,510

1,510

1,510

1,280

1,250

1,190

1,190

1,220

1,220

1,210

1,200

1,190

1,170

1,150

1,130

1,120 

1,110

1,170 

1,210

1,210

1,190

821

-

36,721

1,224

72,840

Calendar year 1950: Max 24,000 Min 26 Mean 1,401 Ac-ft 1,015,000

Water year 1950-51: Max 24,000 Min 15 Mean 1,675 Ac-ft 1,215,000

* Discharge measurement made on this day.

a No gage-height record; discharge for Dec. 3-5 estimated on basis of records for station at Bagby 

and records of change in contents in Lake McClure, discharge for Dec. 15-28 and Mar. 6 estimated from 

record of flow through Exchequer powerhouse.
SAN JOAQUIN RIVER BASIN 

Merced River near Stevlnson, Calif.

273

Location. Lat 37°22', long. 120°56', in 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 1951.

Gage. Water-stage recorder. Datum of gage is 56.09 ft above mean sea level (levels by 

Bureau of Reclamation.

Average discharge. 11 years, 775 cfs.

Extremes. Maximum discharge during year, 13,600 cfs Dec. 5 (gage height, 18.05 ft); min- 

 frnum, 106 cfs Oct. 21.

1944-51: Maximum discharge, that of Dec. 5, 1950; minimum, 68 cfs Mar. 8, 1948.

Remarks.--Records good. Practically entire flow is diverted above station during irrigaflon season; some return flow enters above. Flow regulated by Lake McClure (see p. 271). 

Discharge measurements generally made twice a month except that six were made in December.

Cooperation. Nine discharge measurements furnished by Division of Water Resources, Department of Public Works, State of California.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

S

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

Totail

Mean

Ac-ft

Oct.

154

147

153

153

148

143

153

143

148

144

144

143

132

134

132

145

138

127

123

120

120 

123

143

149

151

160

171

176

175

161

176

4,529

146

8,980

Nov.

175

172

148

143

140

14O

142

145

148

144

142

143

143

143

145

148

149

156

208

3U570

746 

566

430

452

1,210

1,400

1,280

1,270

1,280

1,290

-

14,368

479

28, 500

Dec.

1,300

1,640

1,910

2,820

11,2OO

11,500

9,130

9,8OO

10,800

12.000

11,000

7,770

6,16O

5,700

5,260

4,500

5,150

5,320

4,840

2,580

1,910 

1,340

818

1,440

1, 69O

1,630

1,470

1,430

1,390

1,390

1,370

146,258

4,718

29O, 100

Jan.

1,350

1,34O

1,050

616

512

456

426

410

389

376

370

566

1,350

1,550

1,610

1,620

2,820

2,520

1,940

4,160

4.480 

3,340

2,070

1,930

2,180

2,730

2,600

1,730

1,600

1,570

1,550

51,211

1,652

101,600

Feb.

1,530

1,51O

1,500

1,520

1,570

1,980

1,820

1,680

1,640

1,640

1,970

1,9OO

2.790

2,290

1,940

1,880

1,850

1,820

1,580

1,52O

1,5OO 

1.51O

1,500

1,500

1.480

1,480

1,500

1,490

_

-

47,890

1,710

94,990

Mar.

1,500

1,530

1,540

1,520

1,520

1.620

1,570

1,580

1,520

1,510

1,500

1,510

1,490

1,490

1,480

1,480

1,470

1,470

1,480

1,460

1,440 

1,340

1,180

1,140

1,120

1,080

1,010

958

871

787

725

41,889

1,351

83,090

Apr.

692

664

608

568

562

588

62O

639

622

548

496

426

408

396

373

360

396

449

415

362

351 

360

360

329

351

423

438

426

514

699

-

14,443

481

28,650

May

895

1,020

1,110

993

1,060

1,23O

1,240

1,160

1,030

1,020

1,24O

1,620

1,840

1,460

1,040

849

714

739

1,020

1,540

2,020 

2,190

2,110

2,020

1,950

2,060

2,640

2,920

S.OOO

2,520

2,040

48,290

1,559

95,780

June

1.750

1,400

1,060

847

728

633

562

488

466

478

470

396

570

320

310

311

329

400

506

514

430 

526

648

556

468

562

290

288

290

288

-

16,484

549

52,700

July

299

302

244

258

267

260

256

262

286

255

22§

254

220

2O2

214

22O

204

149

157

144

132

153

169

153

164

160

152

140

180

175

168

6,365

205

12,620

Aug.

157

174

162

168

182

199

172

165

180

174

188

187

206

164

158

157

154

156

172

158

160 

164

158

172

168

208

188

199

208

187

168

5,413

175

10,740

Sept.

169

181

194

192

204

217

220

2O4

217

228

216

204

206

205

211

206

204

180

188

196

204 

230

230

216

235

246

258

256

262

277

-

6,454

215

12,800

Calendar year 1950: Max 12,000 Mln 120 Mean 738 Ac-ft 534,400

Water year 1950-51: Max 12,000 Mln 120 Mean 1,106 Ac-ft 800,600
274 SAN JOAQOIN RIVER BASIN

Merced River Slough near Newman, Calif.

Location. Lat 37°22', long. 120°58', in ME£ 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 Se] er 1951.

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. 10 years, 81.7 cfs.

Extremes. Maximum discharge during year, 6,410 cfs Dec. 5 (gage height, 11.29 ft), from 

rating curve extended above 3,400 cfs; no flow for several months.

1944-51: Maximum discharge, that of Dec. 5, 1950; no flow for several months each 

year.

Remarks. Records good except those for period of no gage-height record, which are fair, 

and those above 1,500 cfs, which are poor. Slough flows from Merced River to San 

Joaquin River, bypassing gaging station on San Joaquin River near Newman.

Cooperation. Two measurements furnished by Division of Water Resources, Department of 

Fublic Works, State of California.

1.3 

3.6 

7.5

Rating tables, water year 1950-51 (gage height. In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Dec. 4, 5, May 2 to June 10)

Oct. 1 to Dec. 5

2.4 

3.2 

4.0 

6.0 

8.0 

9.0

58

112

298

592

902

9.5

10.0

10.5

11.0

11.3

Dec. 5 to Sept. 30

1,200

1,750

2,580

4,300

6,500

1.2

1.4

1.5

1.6

.2 

.5

1.3

1.8 

2.0 

2.5 

3.0

4.3

8.5

26

53

4.0 123

6.0 310

8.0 592

Note. Same as preceding table above 

8.0~fT.

Discharge, in cubic feet per second, water year October 1950 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

Tota:

Mean

Ac-ft

Oct.

0

0

0

Nov.

0 

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

0

0

aO

aia

a5

0

0

*0

23

48

42

43

44

*41

-

316

10.5

627

Dec.

39 

72

117

*253

*4, 120

4,940

*2,990

*3,120

3,990

5.680

4,710

*2,610

1,800

1,490

*1,220

838

1,030

1,110

*980

435

*296

192

*68

180

252

234

186

163

147

141

137

43, 540

1,404

86,360

Jan.

129 

120

69

3.9

1.3

1.1

1.1

1.0

^8

.8

.9

5.2

84

117

135

136

344

*311

191

579

675

500

289

260

292

382

373

224

181

164

151

5,722.1

185

11, 350

Feb.

145 

137

134

133

141

*218

203

175

174

177

244

226

356

312

253

248

237

204

*136

109

98

98

94

92

90

90

*90

89

_

_

-

4,703

168

9,330

Mar.

85 

82

80

76

72

85

79

78

70

64

61

59

56

54

53

51

49

48

*46

45

44

36

*21

19

17

14

9.5

6.3

2.2

.7

j!

1,463.0

47.2

2,900

Apr.

0.3 

*.3

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

0

0

o

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

2.4

0.08

4.8

May

*0 

4.0

9.8

4.7

6.8

19

*20

15

7.0

5.7

18

55

93

46

8.0

1.0

.2

.1

4.8

44

118

154

139

126

107

129

233

291

303

217

125

2,304.1

74.3

4,570

June

73 

33

5.5

1.0

.2

.2

.1

.1

.1

B.

0

0

0

0

*o

0

0

0

0

0

0

0

0

0

o

o

0

0

0

0

-

113.2

3.77

225

July

(*)

0

0

0

Aug. .

0

0

0

Sept.

(*)

0

0

0

Calendar year 1950 : Max 5,680 Mln 0 Mean 129 Ac-ft 93,710

Water year 1950-51 : Max 5,680 Mln 0 Mean 159 Ac-ft 115,400

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Merced River near Stevlnson.
SAN JOAQUIN RIVER BASIN 275

San Joaquin River near Newnan, Calif.

Location. Lat 37°21t02", long. 120°58'34", in SWi 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 Newnan.

Drainage area. 9,990 sq mi , approximately.

Records available.--April 1912 to September 1951. Prior to Oct. 1, 1937, and subsequent

 to Oct. 1, 1943, flow that bypassed station at discharges a"bove about 9,000 cfs not included in records.

Gage. Water-stage recorder. Datum of gage is 51.0 ft above datum of Corps of Engineers.

 Prior to Mar. 3, 1931, staff gage at various sites within 60 ft of bridge and at same 

datum.

Average discharge. 39 years, 2,334 cfs.

Extremes. Maximum discharge during year, 11,600 cfs Dec. 11 (gage height, 16.09 ft); minimum, 152 cfs Oct. 21.

1912-51: Maximum discharge, 33,000 cfs Mar. 7, 1938 (gage height, 18.50 ft); minimum, 15 cfs Aug. 9, 10, 1924.

Remarks.--Records good. Practically entire flow of river and tributaries diverted during 

irrigation season; low flows consist mainly of return water. See record for Merced 

River Slough which shows flow bypassing station.

Cooperation. Nine discharge measurements furnished by State of California.

Discharge, in cubic feet per second, water year October 1950 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.

238 

229 

229

226

214

208

211

197

208

*211

200 

200

192

192

197

206

203

192

175

161

164

166

180

197

200

208

220

229

238 

232

247

6,370

205

12,630

Nov.

244 

247 

223

208

208

203

191 

*197

200

197

203 

208

214

211

208

214

214

223

240

1,330

1,240

1,550

1,870

*1,900

2,440

2,910

3,240

3,520

5,. 5 70 

*3,180

-

30,809

1,027

61,110

Dec.

2,620 

2.410 

2,490

2,750

*5,320

8,200

8,550 

*8,510

9,210

10,900

ni.eoo

11,000

10, 100

9,450

8,820

7,910

7,760

*8, 020

8,110

7,040

6,040

5,580

*5,040

5,250

5,540

5,400

5,020

4,660

4,380 

4,210

4,150

206,040

6,646

408,700

Jan.

4,030 

3,700 

3,170

*2,470

2,160

2,030

1,910 

1,730

1,580

1,440

1.410 

1,440

2,380

2,820

3,400

3,780

4,520

*4,680

4,290

5,740

6,780

*7.050

6,420

6,280

6,360

6,680

6,660

6,080

*5,730 

5,590

5,460

127,770

4,122

253,400

Feb.

5,370 

5,320 

5,310

5,330

5,380

*5, 630

5,760 

5,760

5,890

5,920

6,070 

5,990

6,330

6,510

6,350

6,400

6,250

5,750

5,110

4,590

4,310

4,300

4,290

4,250

4,200

4,180

*4,180

4.140

:-

148, 870

5,317

295,300

Mar.

5.990 

3,580 

3,370

3,280

3,190

3,140

3,110

3,090

3,060

2,930

2,720 

*2,520

2,410

2,360

2,24O

2,180

2,120

2,060

2,000

1,950

1,900

1,820

1,660

1,600

1,570

1,550

1,470

*1,380

1,260 

1,160

1 . 080

71,750

2,315

142,300

Apr.

1,010 

*985 

915

848

852

895

925 

950

945

880

825 

776

726

708

678

678

712

762

735

686

666

666

662

626

630

704

*717

730

838 

1.150

-

23,880

796

47,370

May

1,500 

1,690 

1,790

1,720

1,690

1,780

*1,760 

1,650

1,470

1,370

1,460 

1,700

1,950

1,700

1,300

1,080

910

895

1,120

1,520

2,000

2,130

2,190

2,150

2,080

2,130

2,340

2,750

Hi2,190

54,455

1,789

110,000

June

1.950 

1,570 

1,250

1,020

870

784

704 

634

606

634

646 

582

566

506

*482

479

494

546

634

674

606

650

820

758

654

570

498

479

*475 

475

-

21,596

720

42, 840

July

475 

437 

410

385

414

407

385 

410

448

425

*403 

403

389

360

364

364

342

279

250

238

220

220

250

241

*257

270

260

254

279 

279

260

10,378

335

20,580

Aug.

260 

250

263

282

318

305

305

*318

315

332 

322

567

BIT

298

308

302

286

292

286

266

*273

266

282

266

325

335

305

356 

360

349

9,350

302

18,550

Sept.

332 

353 

378

371

385

396

385 

389

422

*4S6

456 

414

403

396

396

385

378

360

364

371

364

392

418

382

353

*385

378

378

385 

385

-

11,610

387

23,030

Calendar year 1950 : *«ax 11,600 Min 161 Mean 1,079 Ac-ft 781,500

Water year 1950-51 : Max 11,600 Min 161 Mean 1,983 Ac-ft 1,436,000

Discharge measurement made on this day.
276 SAN JOAQUIN RIVER BASIN 

Orestimba Creek near Newman, Calif.

Location. Lat 37°19'09", long. 121°07'14", in NW£ sec. 20, T. 7 S., R. 8 E., on left bank 

I'M ft downstream from highway bridge, 3 miles downstream from Oso Creek, and 5 miles 

west of Newman.

Drainage area.--129 sq mi.

Records available.--January 1932 to September 1951.

Gage. Water-stage recorder. Datum of gage is 191.86 ft above mean sea level, unadjusted.

Average discharge.--19 years, 15.5 cfs.

Extremes.--Maximum discharge during year, 2,470 cfs Dec. 3 (gage height, 4.49 ft); no 

now during several months.

1932-51: Maximum discharge, 4,900 cfs Jan. 21, 1943 (gage height, 5.95 ft), from 

rating curve extended above 1,200 cfs on basis of slope-area determinations and logarithmic plotting; no flow during several months each year.

Remarks.--Records fair. No storage or large diversion.

Cooperation.--One discharge measurement furnished by Bureau of Reclamation.

Discharge, in cubic feet per second, water year October 1950 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.

(*)

0

0

0

Nov.

0

0

0

0

0

0

0*o

0

0

0

0

0

0

0

0

0

2.5

450

258

155

40

14

*6.0

2.8

1.0

0

0

0

0

-

929.3

31.0

1,840

Dec.

0

0

304

738

142

72

109

935

242

98

55

38

29

30

*32

22

18

15

12

10

8.4

7.2

6.1

5.5

5.5

4.5

3.9

3.3

3.1

3.1

3.1

2954.7

95.3

5,860

Jan.

3.1

*2.8

2.9

2.9

2.9

2.7

2.7

2.7

277

7.6

17

12

8.0

6.4

6.1

5.5

*5.5

*52

38

27

21

18

15

13

12

10

9.3

10

12

9.3

342.6

11.1

680

Feb.

7.6

6.8

6.4

6.1

9.7

25

*17

13

12

9.3

8.9

8.9

8.4

7.6

6.8

5.8

5.2

4.2

*3.9

3.1

3.6

3.6

3.9

4.2

3.9

5.8

8.0

9.7

_

-

218,9

7.82

434

Mar.

12

15

12

10

36

53

42

41

34

27

22

18

15

13

12

9.7

8.0

6.8

*6.1

5.5

4.8

4.2

3.6

3.1

2.9

2.7

2.1

1.7

1.2

1.1

1.0

426.5

13.8

846

Apr.

0.9

.8

.7

.7

.7

*.7

.7

.7

.6

.6

.5

.5

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.2

72

.2

.2

.2

.2

.2

.2

12.9

0.43

26

May

0.2

^1!i.1

.1.1

o'* i

0

0

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

June

(*)

0

0

0

July

C)

0

0

0

Aug.

0

0

0

Sept.

0

X5

0

Calendar year 1950: Max 935 Min 0 Mean 11.5 Ac-ft 8,350

Water year 1950-51: Max 935 Min 0 Mean 13.4 Ac-ft 9,690

Peak discharge (base. 50 cfs). Nov. 19 (2:30 a.m.) 1,470 cfs (3.65 ft); Dec. 3 (10:30 p.m.) 2,470 

cfs (4.49 ft); Dec. 8 (4 a.m.) 1,710 cfs (3.87 ft); Jan. 19 (5 to 7a.m.) 77 cfs (1.41 ft); Mar. 5 

(7 to 10 p.m.) 75 cfs (1.40 ft).

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 277

Falls Creek near Hetoh Hetohy, Calif.

Location. Lat 37°58', long. 119"46', in NEij- 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 Hetch Hetchy.

Drainage area.--45.2 sq mi.

Records available.--November 1915 to September 1951.

Gage. --Abater- stage recorder. Altitude of gage is 5,600 ft (from topographic map).

Average discharge.--35 years (1916-51), 140 cfs.

Extremes.--Maximum discharge during year, 6,660 cfs Nov. 19 (gage height, 9.0 ft), from 

rating curve extended above 2,500 cfs on basis of velocity-area studies; no flow Oct. 

<-25, Sept. -16-30.

1915-51: Maximum discharge, that of Nov. 19, 1950; no flow at times during many 

summers.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Fo~~storage or diversion.

Revisions (water years).--W 531: 1917(M). W931: 1938.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 18 19 to Sept. 30

2,0 

2,2 4.6 4.0

148

247

4.5 

5.0 

5.5 

6.0 

7.0 

8.0 

9.0

409

605

SS5

1,260

2,180

3,750

6,660

2.0 

3.2

3.0 

3.5 

4.0

145

270

4.5 

5.0 

5.5 

6.0 

7.0 

8.0 

9.0

415

580

890

1,300

2,350

3,800

6,660

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

JL8

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

0.2

.2

.1

0

^

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

13

73

54

45

87

94

366.5

11.8

727

Nov.

64

62

101

121

104

83

64

58 

54

43

34

28

26

3¥

35

101

185

2,590

4,580

a3,SOO

al,300

a700

a400

a220

a!80

a!50

 a!30

a!20

alls

126

-

15,308

510

30,360

Dec.

124

100

1,720

1,180

359

388

1,140

 

1,830 776~

326

206

154

124

321

210

133

105

90

84

73

69

65

62

61

58

56

52

50

50

49

48

10,063

325

19,960

Jan.

45

43

52

51

46

42

42

38 

3739-

47

55

56

50

48

48

51

55

54

64

65

179

21? TB~8~

131

112

109

90

80

67

62

2,258

72.8

4,480

Feb.

55

52

46

67

122

91

118

129 

112

111

139

T23

90

77

67

60

55

55

49

48

47

47

48

46

±2_

43

48

48

_

-

2,035

72.7

4,040

Mar.

45

44~5"5~

49

45

48

54

57 

55

50

52

70

98

114

120

120

114

102

114

133

145

139

135

145

165

158

145

145

175

137

104

3,132

101

6,210

Apr.

94

W

101

101

114

158

218

258 

325

424

460

487 4-57

418

436

409

355

275

319

313

355

373

358

313

235

185

158

26.2

262

210

8,562

285

16,980

May

190

170

170

232

178

180

158

TE5 

230

325

487

355

230

170

168

258

454

564

642

708

690

666

672

702

738

970

1,020

 1,120 520"

672

519

14,623

472

29,000

. June

388

325

343

319

367

397

397

376 

367

343

370

406

433

490

544

572

57?

493

403

454

542

433

301

258

250

240

228

215

178

145

-

11,149

372

22,110

July

141

129

118

107

91

81

76

73 

70

65

62

62

61

58

54

49

48

48

48

45

42

38

32

28

27

24

20

18

16

16

ii

1,761

56.8

3,490

Aug.

13

12

12

10

9.0

7.8

6.5

5.1 

4.6

3.7

3.1

2.7

2.5

2.2

1.8

1.5

1.2

1.0

.9

.9

.9

1.0

1.9

2.4

2.1

1.6

1.1

.9

.7

.6

.5

115.2

3.72

228

Sept.

0,4.

.4

.4

.3

.3

.3

.2

a. 2 

a. 2

a. 2

a.l

a.l

a.l

a.l

a.l

0

(J

0

0

0

0

0

0

0

0

0

0

0

0

0-

3.4

0.11

6.7

Calendar year 1950: Max 4,580 Min 0 Mean 208 Ac-ft 150,800

Water year 1950-51: Max 4,580 Min o Mean 190 Ac-ft 137,600

Peak discharge (base, 755 cfs).--Mov. 19 (3 a.m.) 6,660 cfs (9.0 ft); Dec. 3 (8 p.m.) 2,980 cfs 

(7.47 ft); DecT 6 (12 m.) 2,306 cfs (6.96 ft); May 28 (7 a.m.) 1,380 cfs (6.09 ft).

a No gage-height record; discharge estimated on basis of records for Cherry and Eleanor Creeks.

256498 0-53-19
278 SAN JOAQUIN RIVER BASIN

Hetch 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 

0|Shaughnessy Dam on Tuolumne River at Hetch Hetchy in Yosemite National Park, 1.5 

miles downstream from Falls Creek.

Drainage area. 460 sq mi.

Records available.--Hay 1923 to September 1951 (gage heights only prior to October 1930).

Gage.--Water-stage recorder. Datum of gage is at mean sea level (levels by city of San 

Francisco). Prior to Oct. 1, 1927, staff gage at same site and datum.

Extremes.--Maximum contents during year, 369,100 acre-ft Dec. 3 (elevation, 3,810.4 ft); 

minimum, 195,600 acre-ft Nov. 17 (elevation, 3,713.4 ft).

1923-51: Maximum contents, that of Dec. 3, 1950: no contents at times in 1929, 1930,

1931.

Remarks.--Reservoir is formed by concrete gravity-type dam, completed to crest elevation 

37726.5 ft in 1923 and raised to 3,812.0 ft in 1937; storage began Apr. 6, 1923. 

10-foot drum gates were installed on spillway in 1949. Usable capacity, 360,400 acreft between elevations 3,512.0 ft (somewhat above bottom outlet) and 3,806.0 ft (top of 

drum-type 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 power plant. At Moccasin Creek diversion dam, water re-enters 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 Hetch Hetchy water-supply system for San Francisco. 

Records show contents at 12 p.m., all of which is available for release.

Contents, in thousands of acre-feet, water year October 195O 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

Oct.

249.5

248.0

246.6

245.2

243.7

242.3

240.8

239.4

237.9

236.5

235.2

Z33.7

232.5

230.8

229.5

228.2

226.7

225.3

224.0

222.4

Z21.1

219.4

218.3

216.8

215.7

214.5

214.0

212.6

211.5

210.8

210.3

Nov.

209.7

208.9

208.2

207.6

206.8

206.0

205.1

204.1

203.2

201.9

200.9

199.7

198.4

197.5

196.4

195.7

195.6

229.7

269.4

299.8

330.3

339.1

343.0

345.5

347.0

348.2

349.0

349.8

350.0

350.9

-

Dec.

351.5

351/7

g369.1

g365.9

S363.7

S365.7

g368.1

S367.5

S365.1

S361.9

357.2

352.1

346.6

343.0

340.3

341.0

341.4

341.2

341.2

341.2

341.0

340.6

340.4

340.1

339.7

339.3

338.7

338.3

337.7

337.2

336.6

Jan.

335.8

335.2

334.7

334.1

333.3

332.6

331.8

331.0

330.4

329.7

329.1

328.0

327.4

326.6

325.9

325.3

324.5

324.7

324.2

323.8

323.4

324.5

325.3

325.5

325.7

325.9

325.9

325.7

325.5

324.9

324.5

Feb.

324.2

323.6

323.0

322.8

323.2

323.2

323.2

323.4

323.4

323.8

324.2

324.5

324.3

324.2

324.0

323.2

322.8

322.2

321.7

321.1

320.5

319.8

319.2

318.5

317.7

317.1

316.4

315.6

_

_

-

Mar.

315.1

314.1

313.0

312.4

311.9

311.3

310.8

310.4

309,8

309.1

308.5

308.1

307.8

307.9

307.9

307.9

307.9

307.8

307.6

307.8

307.9

308.1

308.1

308.5

308.9

309.1

309.4

309.8

310.4

310.6

310.6

Apr.

310.6

310.4

310.4

310.2

310.2

310.8

311.7

312.8

314.9

317.9

321.3

323.4

324.0

322.6

321.3

319.8

317.5

314.5

314.3

316.8

318.5

319.4

320.0

320.0

319.4

318.3

317.5

318.3

318.8

320.2

May

321.1

322.1

323.0

324.7

325.9

326.8

327.6

328.5

330.3

332.7

336.2

337.5

338.5

338.5

338.7

340.1

343.5

348.4

350.0

350.0

350.0

348.4

349.6

351.9

355.6

359.0

358.8

360.8

364.9

366.3

365.9

June

365.7

364.9

364.7

364.7

364.9

365.1

364.9

364.9

364.9

364.9

365.1

365.1

365.7

366.3

366.7

366.9

366.7

365.9

365.7

365.9

365.3

364.9

364.5

364.3

364.3

364.1

364.1

363.7

363.3

363.1

-

July

363.1

362.9

362.7

362.5

362.3

362.3

362.1

360.8

362.1

361.7

361.5

361.2

361.2

361.0

360.6

360.4

360.0

360.0

360.0

359.8

359.4

358.8

358.4

357.8

357.0

356.0

355.0

354.1

353.1

352.1

351.1

Aug.

350.0

349.0

347.8

346.6

345.7

344.5

343.4

342.2

340.8

339.9

339.5

337.0

335.6

334.1

332.7

331.4

329.9

328.7

327.4

326.1

325.1

323.8

322.6

321.3

319.8

318.5

317.0

315.6

314.1

313.2

311.5

Sept.

310.4

309.1

308.1

306.8

305.7

304.6

303.3

302.0

300.5

299.6

298.3

296.8

295.5

294.2

292.8

291.5

290.0

288.5

287.3

285.4

284.2

283.1

281.6

280.4

278.9

277.5

276.0

274.6

273.2

271.7

-

g Computed from graph baaed on 7 a.m. ataff gage readings Dec. 3-10, May 29 to July 8, Aug. 12-20. 

Monthly elevation and contents, water year October 1950 to September 1951

Date

Calendar year 1950...

Water year 1950-51...

Elevation 

(feet)t

-

-

Contents 

(acre -feet)

-

-

Change in contents 

during month 

(acre-feet)

+225,100

+20,800

t Elevation at 12 p.m.
SAN JOAQUIN RIVER BASIN 279

Tuolumne River near Hetch Hetchy, Calif.

Location. La t 37°56', long. 119°48', in SE£ sec. 17, T. IN., R. 20 E., on left bank in 

losemite National Park, 1 mile dovmstream 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 3,450 ft (from topographic map).

Average discharge.--36 years (1915-51), 982 cfs.

Extremes. Maximum discharge during year, 10,600 cfs May 27 (gage height, 13.1 ft); minimum, 388 cfs Nov. 19.

1915-51: Maximum discharge, 12,900 cfs June 1, 1943 (gage height, 13.90 ft), from 

rating curve extended above 10,000 cfs, reservoir full and spilling; minimum, 1.2 cfs 

Jan. 18, 1931.

Remarks.--Records excellent. Flow regulated by Hetch Hetchy Reservoir beginning in April 

I9ii3 (see preceding page); no diversion above station.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

5.4 

6.0 

7.0

565

730

1,090

8.0

9.0

10

1,640

2,440

3,570

5,290

7,570

10,300

Discharge, In cubic feet per second, water year October 1950 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.

a742

a739

a736

a733

a733

a736

a739

a739

a736

*733

730

727

739

745 "TT?

739 

736

733

730

739

745

742

739

736

733

733

730

727

727

727

724

22,789

735

45,200

Nov.

739

748

745

745

745

745

742

739

739

742

745

742

739

739

736

736 

736

725

"554" 575

864

867

75T

757

760

760

760

*760

760

763

-

22,538

751

44,700

Dec.

769 "772

a, 570

6,540

3,050

2,450

5,960

8,110

5, 210

*3,870

3,980

4,110

4,030

3,970

2,640

808 

800

800

800

800

797

797

797

794 790-

790

787

784

784

781

778

70,718

2,281

140,300

Jan.

775

775

772

769

766

763

760

757

751

751

748

745

742

739

736

733 

733

748

739

730

730

733

736

736

736

736

736

736

736

733

733

23,113

746

45,840

Feb.

730

727

*727

724

730

727

727

727

727

727

730

730

730

730

727

727 

724

721

718

7SS

754

75T

748

742

739

736

733

730

_

-

-

20,479

731

40,620

Mar.

727

7J5

760

757

757

754

748

745

742

739

733

730

730

730

730

730 

730

730

730

730

730

742

760

760

763

766

766

769

772

772" 775

23,152

747

45,920

Apr.

772

775

772

772

772

772

778

784

794

811

825

1,820

3,000

3,570

3,560

3,530 

3,500

3,460

2,170

888

1,580

2,100

2,260

2,260

2,260

2,120

1,840

1,790

1,480

*909

-

52,721

1,757

104,600

May

912

850

825

836

842

850

853

846

787

1,7555

1,280

1,290

1,300

1,320

1,320

1,320 

1,340

1,640

4,110

5,450

5,430

6,090

4,480

*4,350

4,660

5,850

8,780

6,400

3,570

4,530

4,220

87,381

2,819

173,300

June

3,230

2,800

2,810

2,770

2,840

3,030

3,050

2,970

2,980

2,850

2,950

3,150

3,440

4,030

4,570

4.850 

4,850

4,300

3,560

4,170

3,870

2,920

2,590

2,410

2,380

2,340

2,230

2,150

1,910

1.660

-

93,660

3,122

185,800

July

1,590

1,490

1,400

1,260

1,090

958

867

836

1,060

974

846

800

775

760

760

742 

733

736

754

*760

760

757

757

754

751

766

775

772

769

766

763

27,581

890

54,710

Aug.

760

757

751

748

745

742

736

733

745

778

772

766

763

757

751

748 

778

790

757

763

730

706

724

718

703

697

691

682 "g§4"

697

721

22,933

740

45,490

Sept.

715

691

'5BT 652

670

691

706

706

694

676

685

712

718

718

724

733 

730

»730

727

724

721

718

715

715

730

739

755

733

730

730

-

21,330

711

42,310

Calendar year 1950: Max 8,110 Min 10 Mean 1,080 Ac-ft 781,800

Water year 1950-51: Max 8,780 Min 575 Mean 1,338 Ac-ft 968,800

* Discharge measurement made on this day.

a No gage-height records discharge computed on basis of unpublished records for station above 

Early intake.
<^° SAN JOAftUIH RIVER BASIN

Cherry Creek near Hetch Hetchy, Calif.

Location.--Lat 38°00', long. 119°54', in Sw£ sec. 28, T. 2 N., R. 19 E., on left bank 2.5 

miles northwest of Lake Eleanor Dam, 4 miles upstream from Eleanor Creek, and 7.5 miles 

northwest of Hetch Hetchy.

Drainage area.--Ill sq mi.

Records available.--April 1910 to September 1951.

Gage.--Water-stage recorder. Altitude of gage, about 4,500 ft (from topographic map). 

Prior to Nov. 1, 1913, staff gage 800 ft downstream at different datum. Nov. 1, 1913, 

to Dec. 1, 1915, water-stage recorder at site 25 ft upstream, at same datum.

Average discharge.--41 years, 367 cfs.

Extremes.--Maximum discharge during year, 13,400 cfs Nov. 18 (gage height, 20.17 ft); minimum, 2.8 cfs Oct. 22.

1910-51: Maximum discharge, 18,100 cfs Dec. 11, 1937 (gage height, 25.1 ft, from 

floodmarks), from rating curve extended above 4,000 cfs on basis of velocity-area 

studies; no flow Sept. 6-12, 1910.

Remarks.--Records good except those for periods of fragmentary or no gage-height record,

which are fair. No diversion above station. Release from five small reservoirs (total

capacity, 2,990 acre-ft) has increased normal summer flow since 1931.

Discharge, in cubic feet per second, water year October 195O to September 1951

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

Ao-ft

Oct.

6.0

6.0

6.0

5.7

5.7

5.7

5.7

5.7

5.7

5.3

5.3

5.0

4.6

4.6 

4.6

4.3

3.6

3.2

3.0

3.0

*3.0

2^8.

3.4

62

63

1.060

1,030

393

308

878

603

4,504.9

145

8,940

Nov.

410

452

596

461

385

318

244

212

198

151

121

102

102

187 

220

349

773

g7,950

g8,220

g8.580

*g6,560

1,930

957

616

441

319

231

172

154

*357

-

41,568

1,386

82,450

Dec.

238

187

5,, 010

1,710

f664

al, OOO

a2, 600

a4, 40o

*a2,00o

a8OO

a500

a33O

a270

al, 300 

a760

f434

f334

a280

a240

a225

a2OO

al80

a!70

a!60

a!55

alSO

a!45

al40

al38

a!33

a!30

24,983

806

49,550

Jan.

al26

a!23

*a!75

150

121

114

109

100

93

99

120

125

141

139 

135

127

139

300

172

200

194

637

790

540

406

350

346

268

227

*194

165

6,925

223

13,740

Feb.

153

143

139

216

421

288

418

464

3M

362

459

354

250

218 

186

170

162

157

137

135

131

129

129

131

116

116

120

116

_

-

6,186

221

12,270

Mar.

118

116

106

116

120

148

160

175

162

148

168

241

357

394 

386

378

366

315

382

446

468

414

418

464

504

454

482

513

572

378

274

9,743

314

19,320

Apr.

284

322

*322

358

410

640

751

836

,060

,320

,320

,,570

,360

,230 

,330

1,130

970

748

855

826

914

922

868

752

594

438

398

948

790

558

-

24,624

821

48,840

May

490

*450

464

690

495

518

455

582

837

*1, 110

1,400

824

594

442 

506

815

1,300

1,450

1,520

1,570

1,570

*1,500

1,500

1,550

1,730

1,910

1.980

1,980

1,570

1,350

1,060

34,212

1,104

67,860

June

805

690

735

755

815

825

790

755

725

700

785

815

1,000

1,O5O 

1,070

1,100

1,020

885

740

1.210

795

576

464

*418

410

394

370

334

264

212

-

21,507

717

42,660

July

209

194

167

150

125

108

99

95

91

85

80

73

73

67 

64

*59

54

52

48

43

42

42

36

31

28

24

22

18

18

16

16

2,229

71.9

4,420

Aug.

16

14

13

11

10

a9.5

a9.0

a8.5

aS.O

*7.5

6.5

5.3

5.0

4.3

a4.0

a3.8

a3.6

a3.4

a3.2

5.0

9.6

11

13ia

13

12

11

11

10

10

11

276.2

8.91

548

Sept.

11

11

10

10

9.6

8.7

8.7

8.7

8.3

7.9

7.9

7.9

7.5

7.5 

7.5

7.5

*7.5

7.0

7.0

7.0

7.0

6.5

6.5

6.1

6.1

6.1

6.1

6.1

6.1

6.1

-

230.9

7.70

458

Calendar year 1950 : Max 8,380 Min 2.8 Mean 555 Ac-ft 401,800

Water year 195O-51: Max 8,380 Mln 2.8 Mean 485 Ao-ft 351,100

Peak discharge (base. 2.400 cfs). Oct. 26 (10 p.m.) 6,000 cfs (11.67 ft); Nov. 18 (12 p.m.) 13,400 

cfs (20.17 ft); Dec. 3 (4:30 p.m.) 8,380 cfs (14.65 ft); May 27 (12 p.m.) 2,580 cfs (7.14 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Falls and Eleanor Creeks, near 

Hetch Hetchy, or interpolated.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.

g Computed from numerous daily staff-gage readings.
SAN JOAQUIN RIVER BASIN 281

Lake Eleanor near Hetch Hetchy, Calif.

Location. Lat 37°58', long. 119 0 53', in NW£ sec. 3, T. IN., R. 19 E., 720 ft from left 

end of dam on Eleanor Creek, 1.7 miles upstream from Miguel Creek, and 5.5 miles northwest of Hetch Hetchy.

Drainage area. 79 sq mi t approximately.

Records available. October 1919 to September 1951 (gage heights only October 1930 to 

beptemoer 19M.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by city of San 

Trancisco).

Extremes. Maximum contents during year, 28,800 acre-ft Nov. 18 (elevation, 4,662.7 ft);

 minimum, 6,780 acre-ft Sept. 30 (elevation, 4,637.2 ft).

1919-51: Maximum contents, 29,400 acre-ft Mar. 25, 1928 (elevation, 4,661.7 ft); 

no usable contents at times in 1921, 1929, 1930.

Remarks. Reservoir is formed by multiple-arch dam completed in 1918; storage began June

 2H7T.918. Usable capacity, 26,100 acre-ft between elevations 4,620.9 ft (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 of San Francisco. Records show usable contents at 12 pjn.

Contents, In acre-feet, water year October 1950 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

Oct.

11,100

10,900

10,800

10,600

10,400

9,980

9,820

9,580

9,420

9,340

9,180

9,020

8,790

8,710

8,570

8,360

8,090

7,880

7,740

7,610

7,510

7,400

7,130

6,990

6,850

7,130

7,950

8,360

8,710

9,580

10,500

Nov.

11,000

11,400

11,900

12,200

12,400

12,700

12,900

12,900

12,900

12,900

12,900

12,900

12,900

12,900

12,800

13,200

14,300

28 , 800

27,100

24,600

26,500

25,200

24,800

24,500

24,300

24,200

24,200

24,100

24,100

24,100

-

Dec.

24,100

24,100

28,100

25,700

24,800

25,400

26,300

26,500

25,900

25,200

24,900

24,900

25,100

25,700

25,000

24,600

24, 400

24,300

24,500

24,700

24,800

24,800

24,800

24,900

24,900

24,800

24,800

24,800

24,800

24,700

24,700

Jan.

24,700

24,700

24,800

24,600

23,800

23,100

22,200-

21,400

21,100

21,300

21,600

21,800

22,000

22,100

22,300

22,500

22,700

22,900

22,200

21,600

21,000

20,800

21,000

21,700

22,200

22,700

23,100

23,400

23,600

23,800

23,800

Feb.

23', 800

23,800

23,700

23,900

24,100

24,100

24, 100

24,200

24,200

24,200

24,200

24,200

24, 100

24,000

24,000

23,900

23-, 900

23,800

23,800

23,800

23,800

23,800

23,700

23,700

23,700

23,700

23,800

23,700

_

_

-

Mar.

23 , 500

23,500

23,500

23,400

23 , 700

23,700

23,700

23,800

23,700

23,800

23,800

23,900

23,900

24,000

24,000

24,100

24,100

24,OOO

24,000

24,200

24,200

24,200

24,200

24,200

24,200

24,200

24,200

24,200

24,200

24,100

24,000

Apr.

24,000

24,000

24,000

24,000

24,100

24,200

24,300

24,400

24,500

24,700

24,700

24,700

24,700

24,600

24,600

24,500

24,400

24,300

24,300

24,300

24,300

24,300

24,200

24,100

24,000

24,000

24,000

24,200

24,300

24,200

May

24,100

24,100

24,100

24,300

24,300

24,300

24,200

24,300

24,300

24,300

24,400

24,300

24,100

24,000

24,000

24,000

24,200

24,300

24,400

24,700

25,300

25,700

26,300

26,900

27,100

27,000

26,900

26,900

26,900

26,800

26,900

June

26,900

26,900

26,900

26,800

26,800

26,900

26,900

26,900

26,900

26,900

26,900

26,900

26,900

27,100

27,100

27,100

27,100

27,100

27,000

26,900

26,900

27,000

26,900

26,900

26,900

26,900

27,000

26,900

27,000

26,900

July

26,800

26,600

26,500

26,200

26,100

25,800

25,600

25,200

24,900

24,600

24,200

23,800

23,500

23,200

22,800

22,400

22,200

22,100

22,100

21,900

21,800

21,600

21,500

21,300

21,100

21,000

20,800

20,600

20,400

20,200

20,100

Aug.

20,100

20,200

20,100

19,800

19,500

19,200

19,100

18,800

18,600

18,300

18,100

17,900

17,700

17,400

17,200

17,000

16,700

16,600

16,300

16,000

15,800

15,600

15,300

15,100

14,900

14,700

14,400

14,100

13,900

13,700

13,500

Sept.

13,200

12,900

12,800

12,500

12,300

12,000

11,900

11,600

11,400

11,300

11,000

10,800

10,600

10,400

10,100

9,820

9,500

9,260

9,020

8,870

8,640

8,500

8,230

8,090

7,880

7,610

7,400

7,130

6,920

6,780

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31. ....................

Calendar year 1950 ........

Jan. 31. ....................

Sept .30. ....................

Water year 1950-51 ........

Elevation 

(feet)t

,658.4

-

,637.2

-

Contents 

(acre-feet)

24,700

-

6,780

-

Change In contents 

during month 

(acre-feet)

+600

+24,600

-6,720

-4,520

t Elevation at 12 p.m.
282 SAN JOAQUIN RIVER BASIN

Eleanor Creek near Hetch Hetchy, Calif.

Location --Lat 37°58', long. 119°53', in SW£ sec. 3, T. IN., R. 19 E., in Yosemite Nationai 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 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,600 ft (from 

topographic map). Prior to November 1909, staff gage 1.5 miles upstream at different 

datum. November 1909 to November 1915, staff gage and water-stage recorder 1 mile upstream at different datum.

I

Average discharge.--41 years (1910-51), 220 cfs; median of yearly mean discharge, 240 cfs.

Extremes. Maximum discharge during year, 11,700 cfs Nov. 19 (gage height, 14.95 ft), from 

rating curve extended above 2,000 cfs on basis of velocity-area studies; minimum, 4.7 

cfs Aug. 1.

1909-51: Maximum discharge, that of Nov. 19, 1950; no flow at times during 1910, 

1930, 1931, 1933.

Remarks.--Records excellent except those for period of no gage-height record, those above 

37UDQ cfs, and those below 75 cfs, which are good. No diversion. Flow regulated by 

Lake Eleanor beginning in 1918 (see preceding page).

Discharge, in cubic feet per second, water year October 1950 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.

124

103

103

110

116

118

116

106 

*86

86

85

94

92

34

59

T25" 125

116

100

70

31

63

125

88

70

57

9.7

9.5 375"

10

10

2 , 450 . 7

79.1

4,860

Nov.

10 TO"

10

10

11

11

11

11 

25

38

38

56

89

94

93

97

71

1,460

a8,270

a7,860

4,790

*1,880

900

559

384

293

245

210

184

*202

-

27,922

931

55,380

Dec.

255

248

3,360

3,270

1,240

832

2,300

4,580 

2,050

*1,100

708

325

178

1,120

1,070

649

425

261

104 TT3"

126

132

136

136

136

136

132

130

127

126

113

25,618

826

50,810

Jan.

91

90

89

*214

529

517

570 356" 

169

7.1

7.1

7.1

7.1

7.4

7.4

7.4

7.4

247

521

513

509

509

322

38

7.7

9.5

20

36

88

*133

141

5,977.2

193

11,860

Feb.

142

139

138

142

269

272

272

329 

335

317

360

374

3TT

254

215

187

167

158

146

136

132

127

120

116

113

113

116

*110

_

-

5,610

200

11,130

Mar.

Ill

110

102 Tie144

148

139

139

141

136

133

144

179

235

278

296

314

284

284

308

342

346

332

332

352

356

349

342

380 336"

284

7,514

242

14,900

Apr.

240

*233 210"

251

287

342

398

473 

548

656

720" 720

700

638

651

660

574

485

445

445

429

417

405

374

332

299

260

380

505

441

13,548

452

26,870

May

384

*356

342

485

493

477

429

413 

453

501

*584

517

391

320

266

263

332

457

501

346

126

230

104

*T40"

337

657

633

615

465

402

266

12', 285

396

24,370

June

202

195

187

185

185

191

195

195 

191

189

185

189

195

212

240

266

281

257

222

205

208

232

205

*173

107

74

74

74

74

74

5,462

182

10,830

July

98

130

139

149

151

166

175

183 

191

193

195

T5T

193

191

193

184

*77

72

75

77

77

77

77

77

85

92

93

93

95

104

*6_i

3,956

128

7,850

Aug.

4.7

TTT

58

104

104

104

104

105 

*107

110

110

110

110

110

110

110

110

111

113

113

114

TTT

114

113

113

113

113

113

113

113

113

3,158.4

102

6,260

Sept.

Ill

TIT

111

no" 110

110

110 111

110

110

110

110

110

110

110

110

110

110

110

*110

110

110

110

111

111

111

111

111

110

111

3,310

110

6,570

Calendar year 1950: Max 8,270 Min 9.5 Mean 340 Ac-ft 246,100

Water year 1950-51: Max 8,270 Min 4.7 Mean 320 Ac-ft 231,700

* Discharge measurement made on this day. 

a No gage-height record; discharge estimated on basis 

near Hetch Hetchy.

of records for Falls Creek and Cherry Creek
SAN JOAQUIN RIVER BASIN 283

South Fork Tuolumne River near Oakland Recreation Camp, Calif

Location. La t 37°49', long. 120°00', in SEij sec. 29, T. IS., R. 18 E., on right bank opposlte Cliff House, 75 ft downstream from highway bridge on Big Oak Flat road, 0.5 mile 

isouthwest 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 1951.

Gage. Water-stage recorder. Altitude of gage is 2,800 ft (from topographic map).

Average discharge> 28 years, 90.4 cfs; median of yearly mean discharges, 80.0 cfs.

Extremes. Maximum discharge during year, 4,540 cfs Nov. 18 (gage height, 8.68 ft); minimum, 6.5 cfs Oct. 14-16.

1923-51: Maximum discharge, 6,950 cfs Dec. 11, 1937 (gage height, 10.00 ft), from 

rating curve extended above 1,000 cfs on basis of velocity-area studies; minimum, 0.3 

cfs Aug. 23, 1934.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

No storage or diversion.

Revisions (water years). W 843; 1935(M).

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.9 

1.4 

1.9 

2.3 

3.0

6.6

16

37

71

162

3.5

4.0 

5.0 

6.0 

6.4

255

400

910

1,550

1,830

Discharge, In cubic feet pet second, water year October 1950 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.

7.9

8.3

8.5

8.2

7.9

8.0

8.2

7.9

7.6

7.4

7.3

7.0

6.7

"STS 6.6

6.6

6.7

7.0

*7.3

7.3

7.3

7.4

8.2

12

13

27

-35 101

21

41

66

484.9

15.6

962

Nov.

34

26

24

24

21

19

17

16

15

15

14

T?

14

24

27

52

*72

»i.aoo

1,656

742

*824

325

237

185

154

134

117

*104

95

103

-

6,868

229

13,620

Dec.

107

92

1,4W

985

407

452

875

1,570

624

416

333

*288

254

476

413

308

268

240

219

204

195

181

170

160

153

144

136

131

126

126

124

11,627

375

23,060

Jan.

113

113

118

119

110

104

100

98

94

lOT

144

152

131

121

114

129

118

363

"237 385

204

202

221

202

190

178

170

164

158

154

138

4,953

160

9,820

Feb.

132

125

124

126

256

223

199

193

180

175

204

213

195

178

 167

156

150

147

136

136

135

132

128

128

125

125

125

118

_

_

-

4,431

158

8,790

Mar.

125

121

109

T55

192

187

160

162

*152

132

131

136

154

165

165

164

162

154

154

158

164

158

153

154

156

153

153

154

164

153

140

4,710

152

9,340

Apr.

134

134

131

129

T5T

132

146

146

167

199

210

210

208

199

197

192

178

165

175

162

158

159

159

162

160

147

134

227

172

-

5,025

168

9,970

May

165

159

164

284

221

200

180

188

213

238

251

200

178

167

162

175

192

190

188

186

a!81

a!70

a!62

a!60

a!65

a!61

a!40

al!9

alOS

101

94_

5,459

176

10,830

June

88 '5J

80

75

72

71

*70

68

65

62

60

57

56

54

51

49

48

45

44

53

55

50

45

42

41

39

38

37

35

33

-

1,667

55.6

3,310

July

33

3?

31

31

30

30

29

28

28

27

26

26

26

25

24

24

23

22

22

22

21

20

*2O

19

19

19

18

18

17

T7

17

744

24.0

1,480

Calendar year 1950: Max 1,800 Mln 6.1 Mean 114 Ac-ft 82,710

Aug.

16

T6

16

16

16

15

15

15

15

15

14

14

14

14

13

13

13

13

13

12

12

12

12

13

12

12

12

11

TT

12

12

419

13.5

831

Sept.

12

T2

12

12

11

11

11

11

10

10

10

10

10

9.8

9.6

 575 9.4

9.6

9.6

9.6

9.6

9.6

9.6

*9.6

9.6

9.4

9.6

9.8

10

11

-

306.8

10.2

609

Water year 1950-51 : Max 1,800 Mln 6.6 Mean 128 Ac-ft 92,620

Peak discharge (base. 574 cfs). Nov. 18 (10 p.m.) 4,540 cfs (8.68 ft)j Dec. 3 (7 p.m.) 3,090 cfs 

(7768 rtj; DeoT 8 15 a.m.) 2,850 cfs (7.48 ft); Dec. 14 (6 p.m.)696 cfs (4.63 ft)j Jan. 18 (6 p.m.) 

826 cfa (4.86 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Middle Tuolumne River at Oakland Recreation Camp.
284 SAN JOAQUIN RIVER BASIN

Middle Tuolumne River at Oakland Recreation Camp, Calif.

Location. Lat 37°50', long. 120°00', in NW^ sec. 28, T. IS., R. 18 E., on left bank 1,000 

rt 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 1951. November 1916 to September 1932, publisned as Middle Pork of Tuolumne River near Buck Meadows; October 1932 to September 

1940 published as Middle Tuolumne River near Buck Meadows.

Gage.--Water-stage recorder. Altitude of gage is 2,800 ft (from topographic map). 

Average discharge. 34 years (1917-51), 71.7 cfs.

Extremes. Maximum discharge during year, 2,810 cfs Nov. 19 (gage height, 10.45 ft), from 

rating curve extended above 1,400 cfs by logarithmic plotting; minimum, 0.5 cfs Oct. 10.

1916-51: Maximum discharge, 2,910 cfs Dec. 11, 1937 (gage height, 10.4 ft, from 

floodtnarks), from rating curve extended above 1,000 cfs on basis of velocity-area studies; no flow Sept. 4-14, 1924, Aug. 12 to Oct. 5, 1931, Sept. 11-17, 1934.

Remarks.--Records good.

Rating tables, water year 1950-51 (gage height. In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used July 1-23, Sept. 24}

Oct. 1 to Nov. 18 Nov. 18 to Sept. 30

0.5 

.6 

.7 

.9

1.1

0.4;

.6 

1.3 

3.4 

5.8

1.5

1.6 

1.8 

2.1

0.7 1.0

.9 3.2

1.1 6.2

1.3 10

1.5 15

1.7 23

2.0 38

2.5 75

3.0 123

3.5 205

4.0 311

4.5 422

5.0 545

6.0 825

7.0 1,160

8.0 1,540

Discharge, in cubic feet per second, water year October 1950 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.

1.5

1.1

1.1 

1.2

1.2

1.3

1.3

1.2

1.1

1.0

1.1

1.0

1.1

1.1

1.1

1.2

1.1

1.2

*1.3

1.3

1.3

1.3

1.5

2.5

3.1

11

39

TS

11

17

26

155.2

5.01

308

Nov.

16

12

11 

12

12

11

8.5

7.6

7.0

6.6

6.2

5.6

¥7£

11

8.4

17

24

*892

1.490

595

*812

339

222

171

146

128

118

*109

102

113

-

5,418.5

181

10,750

Dec.

117

100 i/sio"

636

384

401

984

1,020

479

346

296

*267

234

375

331

254

221

199

182

170

158

148

138

131

126

119

115

112

112

111

103

9,869

318

19,570

Jan.

98

105

108 

105

98

95

94

91

87

91

98

 55 85

88

91

89

90

256

TI5

110

107

130

150

130

118

113

111

108

107

102

91

3,380

109

6,700

Feb.

97

96

93 

95

162

128

113

107

96

116

136

135

120

113

*108

104

101

100

93

97

96

90

88

90

90

89

88

81

_

-

2,922

104

5,800

Mar.

88

84

77 m

107

106

98

99

*99

94

92

97

102

105

106

106

106

102

103

106

110

110

110

110

114

113

114

115

123

W

111

3,215

104

6,380

Apr.

110

TTo

110 

111

112

118

128

132

*150

188

194

199

115

T96

209

211

197

182

192

181

186

186

186

177

172

148

139

198

184

158

-

4,979

166

9,880

May

151

148

156 

231

196

179

166

177

205

244

"2"l9~ 274

192

177

177

199

236

250

257

254

243

229

209

207

219

215

199

179

154

140

127

6,209

200

12,320

June

TS9" 115

106 

100

96

92

*86

80

75

70

68

64

60

58

55

50

45

44

44

57

98

80

60

53

49

42

40

36

32

30

-

1,994

66.5

3,960

July

28

Tf

26 

26

24

21

21

20

19

18

17

16

16

15

13

13

12

11

11

11

10

10

*9.3

8.6

8.4

8.0

8.0

6.9

6.6

6.6

6.4

453.8

14.6

900

Aug.

6.4

475

5.1 

4.9

4.8

4.6

4.9

4.3

4.0.

4.0

3.9

3. B

3.6

3.6

3.5

3.2

3.1

3.0

2.7

2.7

2.6

3.0

2.6

 277 2.2

2.7

2.6

2.6

2.4

2.6

3.0

110.0

3.55

218

Sept.

2.7

2.8

 373 4.5 

3.0

3.3

2.6

2.6

2.6

2.4

2.1

2.1

2.1

2.0

2.0

1.8

1.7

1.7

1.8

1.8

1.9

2.0

1.9

*1.6

1.5

1.8

1.7

1.7

1.9

2.0

-

66.9

2.23

133

Calendar year 1950: Max 1,490 Mln 0.6 Mean 99.0 Ac-ft 71,700

Water year 1950-51: Max 1,490 Mln 1.0 Mean 106 Ao-ft 76,920

Peak discharge (base, 370 pfs). He

(9.69 ft); Dec. 8 (8 a.m.J 1,420 cfs

)V. 19 (3 a.m.) 2,810 cfs (10.45 ft); Dec. 3 (6 p.m.) 2,390 cfs 

(7.70 ft); -Dec. 18 (6 p.m.) 520 ofa (4.90 ftjj Jan. 18 (3 p.m.)

482 cfs (4.75 ft).

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN

Woods Creek near Jacksonville, Calif.

Location. Lat 37°S1', long. 120°24', in SWir sec. 12, T. IS., R. 14 E., on right bank 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 645 ft (from topographic map). Prior to 

 Uct. 22, 1947, at datum 2.00 ft higher.

Average discharge. 26 years, 60.0 cfs.

Extremes.--Maximum discharge during year, 3,820 cfs Nov. 18 (gage height, 11.75 ft), no 

flow July 21 to Sept. 30.

1925-51: Maximum discharge, 13,500 cfs Feb. 9, 1938, from rating curve extended 

above 1,000 cfs on basis of velocity-area studies; maximum gage height, 13.5 ft, present datum, Feb. 3, 1945; no flow at times in most years.

Remarks. Records good except those for July 2-20, which are fair. At times small amounts 

oi' water from Stanislaus River basin are spilled into Woods Creek above station.

Rating tables, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 18 Nov. 18 to Sept. 30

1.5

1.6

1.7

1.8

1.9

0.7 

1.6 

3.0 

5.0 

7.6

2.1 

2.4 

3.0 

3.6

1.7

1.6 

3.0 

7.4

1.9 

2.1 

2.4 

2.7 

3.3 

4.0

125

228

5.0 440

6.0 765

7.0 1,180

10.0 2,760

Discharge, In cubic feet per second, water year October 1950 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.

1.5

1.5

1.6

1.6

1.8

2.0

1.9

2.0

1.9

1.7

1.7

1.7

1.4

TTl" 1.3

1.5

1.5

1.8 

1.8

1.9

1.8

1.8

2.3

3.2

4.2

*39

"Is 116

9.3

49

45

320.1

10.3

635

Nov.

16

8.6

6.0

5.0

4.7

4.2

4.0

4.5

4.2

3.8

3.6

STB

4.7

10

13

23

*75

*2,190 

T.710

941

399

141

90

70

57

48

*42

45

45

48

-

6>019.9

201

11,940

Dec.

51

47

1,900

896

217

496

*1,320

2,260

458

234

162

129

114

639

248

162

130

116 

101

91

85

79

75

72

69

66

62

60

58

60

68

10,525

340

20,880

Jan.

56

55

78

74

63

56

55

53

51

155

636

361

153

126

122

167

126

763 

555

282

201

253

201

159

127

120

113

105

113

107

91

5,657

182

11,220

Feb.

86

82

80

80

698

234

158

*129

112

104

137

222

129

108

99

92

87

89 

82

78

81

84

78

78

II

72

83

80

_

-

3,513

125

6,970

Mar.

112

99

80

326

1,060

468

310

232

210

183

142

128

120

111

102

98

92

86 

82

79

78

*74

72

69

67

65

62

59

59

58

56

4,829

156

9,580

Apr.

54

54

52

56

88

49

45

44

40

24

24

23

22

21 "55

30

24

29

30

30

29

28

29

30

34

32

33

94

144 ~~ST

-

1,301

43.4

2,580

May

56

49

56

244

96

73

62

53

51

47

40

22

21

23

25

32

33

36 

30

26

29

*23

15

14

11

6.9

6.0

6.0

6.2

5.5

5.0

1,202.6

38.8

2,390

June

5.0

ITS

4.4

4.2

4.0

4.6

5.0

5.0

4.4

3.4

2.6

2.7

2.4

1.9

1.6

1.4

1.3

1.0 

1.0

1.1

1.7

1.7

1.7

1.3

1.0

1.0

1.0

g

 8

.7

73.4

2.45

146

July

0.7

a. 5

a. 5

a. 5

a. 5

a. 3

a. 3

a. 3

a. 3

a. 3

a.l

a.l

**a.l

a.l

a.l

a.l

a.l

a.l 

a.l

a.l

0

tJ

0

0

0

0

0

0

0

0

5.2

0.17

10

Aug.

0

0

0

Sept.

(*)

0

0

0

Calendar year 1950: Max 2,260 Mln o Mean 89.1 Ac-ft 64,470

Water year 1950-51 : Max 2,260 Mln o Mean 91.6 Ac-ft 66,350

Peak discharge (base, 900 efs). Nov. 18 (7 p.m.) 3,820 cfs (11.75 ft); Dec. 3 (8 p.m.) 3,180 cfs 

(10.70 ft}; Dec. 8 (7 a.m.) 3,590 cfs (11.38 ft): Jan. 11 (2:30 p.m.) 1,470 cfs (7.62 ft); Jan. 18 

(7 p.m.) 2,120 cfs (8.87 ft)} Feb. 5 (10:30 a.m.) 1,470 cfs (7.62 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.

a No gage-height records discharge estimated on basis of an estimate and by Interpolation.
286 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 mi.

Records available. October 1924 to September 1930 (gage heights only), October 1930 to 

September 1951.

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, 291,200 acre-ft June 13 (elevation, 605.8 ft); 

 minimum, 72,400 acre-ft Oct. 23, 24 (elevation, 516.0 ft).

1924-51: 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. Usable capacity, 260,000 acre-ft between elevations 476 

ft (mutually agreed-upon minimum) and 605.55 ft (top of drum-type spillway gates) above 

mean sea level. Water passes through power plant 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. Records show total contents at 12 p.m.,of which 30,000 acre-ft (mutually 

agreed-upon minimum) is not available, for release.

Cooperation. Water-stage recorder graph furnished by Turlock and Modesto Irrigation 

Districts.

Contents, In thousands of acre-feet, water year October 1950 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

Oct.

87.0

85.3

83.4

81.7

80.5

79.6

78.9

78.4

77.4

77.0

76.7

76.5

76.1

75.8

75.7

74.8

74.6

74.4

74.0

73.8

73.5

72. 9

72.4

72.4

72. 5

72.9

78.7

80.4

81.3

82.9

85.8

Nov.

86.9

87.8

89.0

90.4

91.5

92.1

92.6

92.7

92.7

92.9

93.3

93.6

93.6

94.0

94.7

95.2

97.7

157.9

244.8

274.5

283.3

270.1

261.1

251.1

240.1

228.0

215.3

204.3

196.3

192.1

Dec.

190.8

189.4

233.9

272.9

276.0

275.1

289.6

283.3

268.6

260.8

256.9

253.5

249.6

254.1

256.0

248.1

238.9

228.6

217.6

207.1

197.9

190.5

188.3

188.1

187.5

187.0

186.2

185.4

184.3

183.5

182.2

Jan.

182.2

182.5

183.0

183.5

184.8

186.2

187.0

188.1

188.6

188.9

193.0

194.9

195.7

196.3

196.5

196.5

195.2

202.4

209.0

207.7

204.3

201.0

196.8

191.6

188.1

187.3

187.5

187.5

187.0

187.5

188.1

Feb.

188.6

189.2

189.7

190.2

195.4

196.3

195.7

195.7

194.9

194.1

194.3

194.9

194.1

192.4

190.5

189.7

188.9

188.3

188.1

188.3

188.6

189.2

189.2

189.4

189.7

189.7

190.0

189.4

_

-

Mar.

189.2

188.9

188.1

188.6

193.8

195.7

195.7

195.4

195.2

194.3

193.0

193.0

193.8

 194.1

194.1

193.8

193.8

193.2

192.7

193.5

195.2

195.4

194.9

194.6

194.3

193.8

193.2

192.7

192.1

192.4

193.2

Apr.

193.8

194.6

195.2

196.0

197.1

198.2

198.7

198.7

199.5

201.0

203.2

205.7

211.6

218.5

225.7

232.4

238.9

244.5

249.3

249.6

249.9

252.0

254.5

256.9

258.7

259.6

259.9

262.1

264.5

264.2

May

263.3

262.7

262.1

263.9

264.8

265.1

264.5

264.2

264.5

265.1

267.9

268.6

267.9

267.3

266.7

266.4

267.3

269.5

274.5

283.6

285.1

287.6

286.7

283.6

282.3

282.6

287.0

288.3

281.7

276.7

276.7

June

277.6

278.5

279.8

281.3

283.9

287.4

290.5

290.8

290.5

290.2

289.9

290.2

291.2

290.8

290.5

290.5

290.5

289.9

289.9

290. S

290.2

289.6

290.2

290.2

289.9

289.6

290.5

290.5

290.5

290.5

July

289.9

289.3

288.3

287.4

286.1

284.8

283.3

281.0

279.5

278.2

277.0

275.1

273.2

271.3

269.2

267.3

265.5

263.0

260.8

258.7

256.3

253.8

251.4

249.6

247.5

245.4

243.6

241.6

239.5

237.4

235.4

Aug.

233.3

231. 2j

229.2

227.2

224.8

223.1

220.8

218.8

216.8

214.8

211.9

209.0

206.3

203.8

201.0

198.2

195.4

192.7

190.0

187.3

184.6

182.2

180.1

178.0

175.9

173.6

171.3

169.0

166.9

164.4

162.4

Sept.

160.7

158.4

156.2

154.5

152.5

150.6

148.4

146.2

143.8

141.5

139.1

137.2

135.1

133.0

130.7

128.9

126.8

124.6

122;1

119.9

117.5

115.1

112.8

110.3

107.9

105.5

103.2

100.7

98.4

96.1

-

Monthly elevation and contents, water year October 195O to September 1951

Date

Dec. 31................

Calendar year 1950...

Sept. 30. ...............

Water year 1950-51...

Elevation 

(feet)t

572 4

-

597 2

531.1

-

Contents 

(acre-feet)

-

193 200

96,100

-

Change in contents 

during month 

(acre-feet)

+136,100

-66,300

+7,900

t Elevation at 12 p.
SAN JOAQUIN RIVER BASIN

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

Location.--Lat 37°42'35", long. 120°24'45", in NEij 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 1951. August 1895 to September 1917 at La

 Grange Uam, 3.5 miles downstream, records equivalent if flow of Yosemite Power Co. 

canal (abandoned in 1926) and Modesto and Turlock Canals is added to flow at La Grange 

Dam.

Gage.--Water-stage recorder. Altitude of gage is 330 ft (from topographic map). Prior

 fo Nov. 17, 1915, at datum 2.22 ft higher. Aug. 29, 1895, to Dec. 5, 1908, staff gage 

on bridge pier 2 miles below La Grange Dam. Apr. 1, 1908, to Mar. 18, 1915, staff gage 

on right bank 80 ft above La Grange Dam.

Average discharge.--56 years (1895-1951), 2,551 cfs, using 1895-1916 records of combined

 flow or river and canals, and including Hetch Hetchy diversion to San Francisco.

Extremes.--Maximum discharge during year, 61,000 cfs Dec. 8 (gage height, 43.8 ft), from

 rating curve extended above 9,000 cfs on basis of computation of peak flow over dam and 

through power plant; minimum, 47 cfs Oct. 26, Nov. 16.

1895-1951: Maximum discharge, that of Dec. 8, 1950; minimum discharge, 0.5 cfs on 

many days in October and November 1931.

Remarks.--Records excellent. Flow regulated by Don Pedro power plant, Don Pedro Reservoir

 fli? preceding page), Hetch Hetchy Reservoir (see p. 278 ), and Lake Eleanor (see p.281). 

Diversion through Hetch Hetchy aqueduct to San Francisco began Oct. 19, 1934; for present year it amounted to an average of 119 cfs.

Revisions (water years ).--W 843: 1917(M). W 881: 1897-1916, 1924-26 (yearly summaries

only) .

6.3 525

7.0 860

8.0 1,530

9.0 2,330

10.0 3,230

Rating tables, water ye:

and discharge, it

Oct. 1 to Dec . 8

12.0 5,300 26.0 27,200

14.0 8,020 29.0 32,400

17.0 12,600 33.0 39,800

20.0 17,400 37.0 47,400

23.0 22,200

Dec . 9 to Sept. 30

7.5 

8.5 

10.0

1,210

2,000

3,300

12.0

14.0

17.0

5,630

8,600

13,100

20.0 17,600

23.0 22,400

26.0 27,200

Note. Same as preceding table above 26 ft. 

Discharge, in cubic feet per second, water year October 1950 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

26

29

30

31

Total

Mean

Ac-ft

Oct.

1,200

1,570

 1,640

1,640

1,290

1,230 

1,070

944

1,230

1,020

975

953

996

895

704

901

899

880

932

912

805 

683

900

826

836

717

705

650

598

7TT

660

30,002

968

59,510

Nov.

833

805

801

701

552

794 

818

825

828

797

676

570

842

841

864

943

823

764

3,970

8,450

23,500 

16,400

9,820

*8,720

8,700

8,530

8,380

7,690

6,250 

4,150

-

128,637

4,288

255,100

Dec.

3,120

2,880

4,450

8,760

8,860

8,850 

15,400

 46,800

27,400

15,200

11,200

9,990

9,360

9,290

9,320

9,240

9,170

9,060

9,000

8,420

7,730 

6,460

3,430

2,380

2,350

2,340

2,390

2,400

2,400 

2,400

2,390

272,440

8,788

540,400

Jan.

1,660

1,620

1,650

1,580

 1,590

1,480 

1,57O

1,560

1,620

1,520

1,550

1,580

1,620

1,520

1,680

1,980

2,570

2,670

3,540

4,960

5,070 

5,770

6,760

6,450

4,770

3,120

2,620

2,420

2,690 

2,210

1,950

83,320

2,688

165,300

Feb.

1,980

1,940

1,800

1,640

2,360

3,170 

3,450

3,440

 3,560

3,480

3,250

3,540

3,580

3,600

3,560

3,010

2,690

2,480

2,260

1,970

2,020 

1,860

1,970

1,860

1,680

1,890

1,940

2,150

;

-

72,130

2,576

143,100

Mar.

2,130

2,200

2,160

2,020

2,150

2,730 

2,990

2,990

2,990

3,000

2,810

2,440

2,160

2,680

 2,940

2,990

2,980

2,790

2,940

2,380

2,140 

2,700

2,990

3,030

2,810

3,000

3,080

3,090

3,100 

2 , 620

2,100

83,140

2,682

164,900

Apr.

1,890

1,950

1,980

1,950

1,950

1,950 

2,320

2,770

2,780

2,870

2,940

2,950

2,950

2,960

2,970

2,950

2,980

2,990

2,990

2,960

3,000 

3,020

3,010

3,030

3,140

 3,210

3,190

3,330

3,320 

3,450

-

83,750

2,792

166,100

May

3,420

3,210

3,120

3,200

3,280

2,980 

3,370

3,310

3,230

3,230

3,420

3,610

2,880

3,540

3,440

3,390

3,300

3,160

3,170

3,550

7,460 

7,670

8,520

8,500

8,380

8,340

9,050

10,400

10,600 

8,990

6,520

160,240

5,169

317,800

June

4,600

3,640

3,320

3,300

2,750

2,320 

2,790

 4,240

4,340

4,300

4,300

4,310

4,370

5,730

6,520

6,480

6,520

6,480

5,250

4,320

6,540 

17750

3,310

3,310

3,310

3,080

2,340

2,880

2,540 

2,340

-

124,280

4,143

246,500

July

2,250

2,240

2,240

2,150

2,120

2,120 

2,110

2,080

2,070

2,020

2,020

2,020

 2,040

2,020

1,930

2,050

2,030

2,030

2,010

2,020

2,000 

1,960

1,980

1,940

1,870

1,860

1,860

1,820

1,770 

1,830

1,880

62,340

2,011

123,600

Aug.

1,820

1,790

1,780

1,760

1,680

1,780 

1,770

1,880

1,890

1,880

2,120

2,120

2,130

2,140

2,160

2,160

2,130

2,140

2,160

2,160

2,200 

1,900

1,850

1,810

1,790

1,750

1,830

1,820

1,800 

1,820

1,830

59,850

1,931

118,700

Sept.

1,600

1,550

1,640

1,490

1,710

1,710 

1,790

1,710

1,690

1,780

1,820

1,870

1,800

1,770

1,760

1,430

 1,520

1,840

1,860

1,880

1,850 

1,800

1,730

1,870

1,900

1,900

1,910

1,910

1,880 

1,700

-

52,830

1,761

104,800

Calendar year 1950: Max 46,800 Min 138 Mean 2,910 Ac-ft 2,107,000

Water year 1950-51: Max 46,800 Min 552 Mean 3,323 Ao-ft 2,406,000

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN

Modesto Canal near La Grange, Calif.

Location. Lat 37°40'04", long. 120°27'26", in SW£ sec. 17, T. 3 S., R. 14 E., on right 

Dame 0.5 mile northeast of La Grange and 1 mile downstream from intake at La Grange Dam.

Records available.--April 1903 to September 1951.

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. 48 years, 377 cfs.

Extremes. Maximum daily discharge during year, 1,430 cfs May 4; no flow Dec. 9, 10, Mar. 

1903-51: 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. Gage-height record furnished by Modesto Irrigation District. 

Revisions (water years). W 881: 1904-9 (yearly summaries only).

Discharge, In cubic feet per second, water year October 1950 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.

339

339

336

296

289

289

284

289

287

305

300

294

287

224

205

212

210

203

200

192

190

196

187

195

179

175

175

177

187 

115

7,491

242

14,860

Nov.

17

17

8.1

3.5

3.0

3.5

154

212

207

205

192

176

194

203

203

21O

205

203

207

206

514

"62"8 632

630

213

4.4

4.1

4.1

3.8

3.2

5,465.7

182

10,840

Dec.

3.0

3.0

'2T? 3.5

2.4

2.7

3.0

1.4

0

TS

1.0

2.2

2.0

2.0

2.0

1.9

1.9

1.9

1.9

1.9

1.9

1.7

1.7

1.5

1.5

1.5

*1.5

1.5

1.5

1.5

1.5

57.7

1.86

114

Jan.

1.5

l.g

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.7

1.9

TT7 1.'

1.

1.

1.

1.

1.

1.

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9 

1.9

53.5

1.73

106

Feb.

1.9

T^

1.9

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.2

2.0

2.2

2.2

2.2

2.2

2.2

2.2

2.0

2.0

2.0

2.0

2.0

2.0

238

645 g'2g

245

_

~

1,799.1

64.3

3,570

Mar.

5.6

4.4

4.1

4.1

4.4

4.4

4.4

4.4

4.4

4.6

4.6

4.6

3.0

.5

0

0

0

0

0

0

0

0

5.3

11

11

349

499

900

1,240

1.300 

1,3"66

5,672.8

183

11,250

Apr.

1,180

1,140

1,140

1,200

1.230

1,070

937

870

824

*822

827

832

836

839

1 846

848

853

858

860

853

860

858

853

848

961

1,040

1,020

1,030

1,120

1,200

28,655

955

56,840

Hay

1,340

1,380

1,400

1.450

908

506

55S

788

844

839

836

839

839

836

925

961

959

952

949

964

1,030

1,030

1,080

1,090

1,160

1,180

1,190

1,220

1,140

1,080 

1,060

31,353

1,011

62,190

June

1,100

1,090

1,070

1,090

964

803

848

*1,020

1,180

1.210

1,210

1,210

1,210

1,140

1,090

1,090

1,120

1,130

1,090

1,100

1,120

1,070

1,040

1,030

1,030

1,020

834

896

870

752

31,407

1,047

62,290

July

748

745

T50" 743

767

769

757

764

764

764

762

762

767

764

752

767

767

769

767

767

764

762

762

757

752

750

755

755

750

*760 

764

23,566

760

46,740

Aug.

767

760

764

760

750

760

694

685

677

682

774

774

774

774

774

774

724

704

704

702

680

669

669

664

662

664

669

662

600

504

21,724

701

43,090

Sept.

"5SB 501

590

522

588

590

590

570

556

564

564

560

554

*586

606

543

550

612

614

575

5S8

566

564

558

564

564

566

564

560

560

17,030

568

33,780

Calendar year 1950: Max i 410 Mln 0 Mean 518 Ac-ft 374,900

Water year 1950-51: Max 1,430 Min 0 Mean 477 Ac-ft 345,700

* Discharge measurement made on this day.
SAN JOAQUIW RIVER BASIN 289

Turlock Canal near La Grange, Calif.

Location. Lat 37 0 40'00", long. 120 0 26'25", near north line of NW£ sec. 21, T. 3 S., B. 

14 K., on right bank 2,400 ft downstream from intake at La Orange Dam and 1.2 miles 

east of La Grange.

Records available.--October 1898 to September 1951.

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 daturas 

near canal intake; Sept. 14, 1915, to Apr. 15, 1924, staff gage at present site and 

datum.

Average discharge. 53 years, 536 cfs.

Extremes.--Maximum daily discharge during year, 2,180 cfs Apr. 24, 25; minimum daily, 0.6 

crs Jan. 21.

1898-1951: 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 

Darn_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 power plant and returned to river.

Cooperation. Gage-height record furnished by Turlock Irrigation District. 

Revisions (water years). W 881: 1899-1908 (yearly summaries only).

Discharge, In cubic feet per second, water year Oqtober 195O 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.

858

1,230

1,500

1,300

998

945

782

660

942

322

87

97

99

81

66

67

89

89

99

97

77

64

70

77

79

60

24

12

11

T4

16

10,712

346

21,250

Nov.

38

17

10

9.2

8.6

9.2

9.2

8.6

8.0

7.1

6.2

4.9

6.2

7.1

*70

7.1

6.2

6.2

5.7

5.8

9.7

12

8.6

6.2

5.0

4.9

3.4

3.0

3.0

2.8

-

308.9

10.3

613

Dec.

2.8

5.9

4.8

2.4

4.6

2.6

3.1

1.7

776" 8.6

3.6

4.0

2.9

2.6

2.4

2.2

2.2

1.7

1.9

2.6

1.7

1.9

1.7

1.4

1.4

L£

1,2

1.2

1.7

1.4

1.4

85.8

2.77

170

Jan.

1.7

1.0

1.2

.9

.9

1.0

.8

1.3

1.2

1.1

1.2

1.4.

1.4

.8

1.7

1.9

1.2

1.0

.7

.7

.6

18

28

18

4.9

14

17

4.9

282

484

478

1,372.5

44.3

2,720

Feb.

474

611

755

760

882

938

944

946

*357

1.4

5.2

7.2

9.8

9.8

9.8

9.8

7.9

9.8

9.2

6.9

2.2

1.9

1.9

1.9

1.9

1,050

200

123

-

-

-

8,136.6

291

16,140

Mar.

201

243

240

243

243

246

110

9.8

9.8

9.8

9.8

9.2

9.2

9.8

*9.8

9.8

9.8

9.8

9.8

9.8

9.2

5.4

4.5

4.5

4.5

4.0

4.0

4.0

4.0

3^6

3.6

1,703.5

55.0

3,380

Apr.

3.6

3.6

3.4

3.6

3.4

508

1,380

1,900

1,960

>2 , 050

2,110

2,120

2,110

2,120

2,120

2,100

2,130

2,130

2,130

2,110

2,140

2,160

2,160

2,180

2,180

2,170

2,170

2,110

2,040

1,540

-

49,845.6

1,662

98,870

May

1,350

1,330

727

304

319

304

588

1,060

1,290

1,460

1,650

1,750

1,760

1,760

1,610

1,370

1,400

1,450

1,450

1,420

1,510

1,520

1,720

1,820

1,800

1,800

1,820

1,570

1,460

1,450

1,450

42,272

1,364

83,850

June

1,510

1,540

1,550

1,560

1,530

1,450

1,540

*1,740

1,840

1,830

1,840

1,840

1,850

1,950

1.990

1,990

1,990

1,750

1,630

1,720

1,760

1,610

1,500

1,540

1,490

1,480

1,430

1,650

1,590

1,520

-

50,210

1,674

99,590

July

1,500

1,500

1,500

1,390

1,350

1,350

1,340

1,320

1,310

1,260

1,260

1,260

1,270

1,260

1,180

1,280

1,260

1,260

1,240

1,250

1,240

1,200

1,220

1,180

1,120

1,110

1,100

1,070

1,020

*1,070

1,120

38,790

1,251

76,940

Aug.

1,050

1,030

1,020

995

933

,020

,080

,200

,210

,200

,350

,350

,360

,370

,39O

,390

,410

,440

,460

,460

,520

,230

,180

,150

,130

,090

,160

,160

,200

,320

,330

38,188

1,232

75,740

Sept.

1,160

982

1,050

966

1,120

1,120

1,200

1,140

1,130

1,220

1,260

1,310

1,250

*1,180

1,150

890

i.oTo

1,230

1,250

1,300

1,290

1,230

1,170

1,310

1,340

1,340

1,340

1,350

1,320

1,140

-

35,808

1,194

71,020

Calendar year 1950 : Max 2,050 Kin 0.8 Mean 794 Ac-ft 574,700

Water year 1950-51 : Max 2,180 Mln 0.6 Mean 760 Ac-ft 550,300

Discharge measurement made on this day.
290 SAN JOAQUIN RIVER BASIN

Tuolumrte River at Modesto, Calif.

Location. Lat 37°37'40", long. 120°59'20", in SWjr sec. 33, T. 3 S., R. 9 E., near left 

bank on railroad bridge at Modesto, 0.3 mile downstream from Dry Creek.

Records available.--1878-84, 1891-97 (gage heights only), October 1943 to September 1951. 

 March 1940 to December 1951 in reports of Division of Water Resources, Department of 

Public Works, State of California.

Gage.--Water-stage recorder. Datum of gage is mean sea level, unadjusted (levels by 

'~ ITodesto Irrigation District).

Average discharge. 8 years (1943-51), 1,181 cfs.

Extremes.--Maximum discharge during year, 57,000 cfs Dec. 9 (gage height, 69.19 ft); minimum, 230 cfs Oct. 10.

1943-51: Maximum discharge, that of Dec. 9, 1950; minimum observed, 189 cfs July 

5, 1947.

Remarks.--Records fair. Plow regulated by reservoirs and power plants above station. 

 Many diversions above station for irrigation. See Remarks for Tuolunme River above 

La Grange Dam, near La Grange.

Cooperation.--Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, In cubic feet per second, water year October 1950 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

Ao-ft

Oct.

262 

275

259

255

251

262

257

257 

*242

258

403

718

754 

812

822

819

799

844

858

900

896

858

826

833

878

930 930'

896

878

864

922

19,998

645

39,670

Nov.

946 

1,040

1,120

1,130

1,050

922

1,020

1,010 

942

922

892

836

775 

826

910

903

*1,040

1,040

1,110

5,600

9,450

*18.900

15, 300

9,890

8,240

8,400

8,340

8,170

7,210

5,780

-

123,714

4,124

245,400

Dec.

3,940 

3,600

3,310

6,990

9,880

9,260

9,770

21,500 

*45.800

20,700

13, 800

10, 700

9,210 

8,700

8,790

8,860

8,640

8,460

8,330

8,220

7,430

6,890

5,680

3,150

2,850

2,770

2,770

2,770

2,760

2,730

2,720

268,980

8,677

533,500

Jan.

2,600 

1,980

1,970

1,960

1,880

1,840

1,760

1,820 

1,820

1,860

1, 8OO

2,800

2,640 

2,100

1,900

2,020

*2, 480

*2, 880

3,020

4,430

5,040

5,010

5,640

6^.250

5,760

4,320

3,220

2,960

2,800

2,600

1,960

91,120

2,939

180,700

Feb.

1,880 

1,860

1,640

1,390

1,350

2,620

3,040

2,920 

2,940

3,720

3,690

*3,660

4. 49Q 

4,020

3,900

4,320

3,160

3,000

2,830

2,430

2,320

2,340

2,200

2,270

2,130

1,560

854

1,210"

_

_

-

73,744

2,634

146,300

Mar.

2,270 

2,580

2,560

2,280

2,220

2,870

3,130

5.260 

*3, 240

3,220

3,180

3,020

2,540 

2,5OO

3,090

5,160

3,190

3,180

3,040

3,120

2,550

2,500

3,120

3,240

3,220

*5,040

2,840

2,790

2,520

1,990

1.580

86,620

2,794

171, 800

Apr.

1.090 

1,010

1,050

1,050

926

896

756

520 

451

405

539

*317

319 

329

542

529

554

332

*352

349

359

544

552

556

344

392

587

457

625

661

-

15,711

524

31,160

May

9OO 

942

769

1,240

1,650

2,460

2,360

2,100 

1,500

*1,270

1,100

1,060

1,140 

1,150

1,110

1,110

1,180

1,070

896

896

1,660

4,450

4,820

5,090

5,050

4,900

4,960

6,030

7,190

7.520

5,580

82,933

2,675

164,500

June

5.420 

2,140

1,370

1,100

978

778

529

616 

1,470

1,430

1,390

1,370

1,380 

1,470

2,840

3,150

3,190

5,230

5,420

2,260

2,180

3,300

1,890

1,200

1,070

1,040

875

517

*478 498"

-

50,579

1,686

100,300

July

387 

552

534

344

*354

326

559

562 

342

326

536

312

317 

319

332

352

554

305

312

512

305

346

*536

356

334

317

507

295

3l5

324

310

10,197

329

20,220

Aug.

300 

286

293

329

307

334

29T

282 

326

284

270

279

*319 

286

286

288

286

284

282

286

291

307

*302

302

295

291

305

300

291

291

295

9,168

296

18, 180

Sept.

282 

279

273-

275

257

264

255

255 

255

264

244

*255

249 

259

266

257

268

249

249

255

262

264

270

275

*291

295

295

291

291

502

-

8,044

268

15, 960

Calendar year 1950: Max 43,800 Mln 236 Mean 1,862 Ac-ft 1,348,000

Water year 195O-51: Max 43,800 Mln 238 Mean 2,3O4 Ac-ft 1,668,000

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 291

Middle Fork Stanislaus River at Kennedy Meadows, Calif.

Location. Lat 38°18', 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 Deadman Creek and 2 miles downstream 

from Relief Reservoir.

Drainage area.--49.5 sq mi.

Records available. October 1938 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 6,450 ft (from topographic map).

Average discharge . 12 years (1938-45, 1946-51), 130 cfs.

Extremes. Maximum discharge during year, 1,700 cfs Nov. 20 (gage height, 6.66 ft), from 

rating curve extended above 900 cfs on basis of slope-area determination of peak flow; 

minimum, 10 cfs Oct. 17.

1938-51: Maximum discharge recorded, that of Nov. 20, 1950; minimum recorded, 4.8 

cfs Dec. 7, 19<ty.

Remarks. Records good except those for periods of ice effect or no gage-height record, 

which are poor. Flow regulated since beginning of record by Relief Reservoir (usable 

capacity, 15,550 acre-ft). No diversion.

Cooperation. Water-stage recorder graph, furnished by Pacific Qas & Electric Co., obtainea in connection with a Federal Power Commission project.

Rating table, water year 195O-51, except period of lee effect 

(gage height, in feet, and discharge, in cubic feet per second)

1.1 

1.5 

2.0

9.5

22

2.5 

3.0 

3.5

81

136

213

4.0 

5.0 

6.0

316

660

1,210

Discharge, in cubic feet per second, water year October 195O 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.

13

13

13

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

12

11

11

11

10O

235

231

250

 2H 254

239

254

242

2,313

74.6

4,590

Nov.

239

240

246

246

239

235

229

227

224

217

215

211

208

204

199

199

204

709

1,010

*1,160

1,090

648

476

388

356

336

316

*309

297

294

-

11,171

372

22,160

Dec.

286

280

539

424

341

374

533

699

T74

385

349

324

308

321

b260

1

V b200

1V b!40

i

I bllO

8,257

266

16,380

Jan.

b90

b80

,

1

> b75

1

J

s

1

V b70

I

I

bllO

,

1

I a80

1

j

2,635

85.0

5,230

Feb.

a75

a85

a 90

a85

 a80

_

-

-

2,315

82.7

4,590

Mar.

a75

a80

a90

a95

99

~~55 100

51

48

43

2,502

80.7

4,960

Apr.

42

42

40

41

43

48

53

60

76

96

106

115

116

112

113

117

107

94

99

97

97

93

91

87

83

75

70

81

76

68

-

2,438

81.3

4,840

May

66

63

63

70

67

66

63

64

74

97

127

102

87

77

71

81

127

171

*186

193

194

215

459

570

692

850

793

732" 900

586

429

8,335

269

16,530

June

297

"288 254

316

334

350

373

350

334

334

376

394

473

570

610

"687 692

566

466

491

410

339

311

316

350

350

348

321

277

256

-

11,833

394

23,470

July

260

246

233

208

176

162

160

171

174

172

170

162

162

162

153

147

153

160

156

143

130

116

109

103

95

76

65

*67

*69

64

63_

4,487

145

8,900

Aug.

63

60

54

53

48

44

41

38

55

102

123

122

121

119

119

119

119

121

119

119

119

121

121

121

121

119

119

119

119

121

119

3,078

99.3

6,110

Sept.

119

119

119

86

21

20

19

19

19

IB

18

18

18

18

18

97

229

227

226

222

220

218

217

215

213

211

208

206

204

203

-

3,765

126

7,470

Calendar year 1950: Max 1,160 Min - Mean 178 Ac-ft 128,700

Water year 1950-51: Max l,16o Min 11 Mean 173 Ac-ft 125,200

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for nearby streams.

b Stage-discharge relation affected by Ice.
292 SAN JOAQUIF RIVER BASIN

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

Location. Lat 38°11', long. 120°09 T , 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 mi.

Records available.--September 1905 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,650 ft (from topographic map). Prior

 ITo Mar. 19, 1928, staff gage at diversion dam 1 mile downstream at different datum. 

Mar. 19, 19E8, to October 1938, water-stage recorder 150 ft downstream at same datum.

Average discharge.--45 years (1905-8, 1909-51), 693 cfs.

Extremes. Maximum discharge during year, 23,300 cfs Nov. 18 (gage height, 18.13 ft), from 

rating curve extended above 6,000 cfs by logarithmic plotting and computation of peak 

flow over Sand Bar Dam 1 mile downstream; minimum, 60 cfs Oct. 20.

1905-51: Maximum discharge recorded, 26,500 cfs Dec. 11, 1937 (gage height, 21.0 ft, 

from floodmarks at site then in use), from rating curve extended above 6,000 cfs on basis 

of velocity-area study and computation of peak flow over Sand Bar Dam; minimum discharge, 

30 cfs Aug. 24, 1924.

Remarks. Records good. Flow slightly regulated by Relief Reservoir beginning in 1909

 ("capacity, 15,550 acre-ft). Water diverted by Philadelphia Canal (see p. 295) from 

South Fork Stanislaus River through Spring Gap powerhouse into Middle Fork above 

station. Stanislaus tunnel diverts 1 mile downstream.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal power Commission project.

Revisions (water years). W 831: 1935, 1936.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

3.0 

3.5 

4.0 

5.0 

6,0

143

223

474

840

7.0

9.0

11.0

14.0

16.0

1,340

2,840

5,160

10,900

16,300

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

l

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

116

117

117

117

116

116

116

114

112

112

111

109

109

109

108

108

108

106

106

99

110

110

111

242

310

358

534

381

374

545

537

5,838

188

11,580

Nov.

442

436

480

496

458

427

401

390

381

366

358

353

355

374

542

390

557

10,300

12,600

14,500

11,500

4,050

2,680

1,980

1,670

1,450

1,280

1,180

1,100

1,150

-

72,246

2,408

143,300

Dec.

 1,110

982

9,600

5,800

3,040

3,170

6,710

11,000

4,570

3,340

2,730

2,230

1,920

2,910

2,260

1,820

1,620

1,480

1,380

1,300

1,220

1,170

1,120

1,070

1,030

985

940

912

894

872

849

80,034

2,582

158,700

Jan.

812

808

812

824

792

772

752

732

720

708

712

708

696

692

692

'BBS 688

768

752

704

696

1,040

1,220

1,000

921

876

844

812

780

748

712

24,481

790

48,560

Feb.

716

716

712

712

898

832

840

935

930

921

955

970

916

872

824

792

756

736

700

688

684

676

670

662

656

652

645

658

_

-

21,704

775

43,050

Mar.

631

620

603

586

586

592

596

596

600

596

592

592

603

624

652

680

704

680

704

760

836

844

836

849

912

912

912

912

965 930"

849

22,354

721

44,340

Apr.

804

788

792

784

784

844

926

970

1,120

1,310

 1,370

1,500

1,620

1,540

1,470

1,550

1,460

1,280

1,200

1,220

1,240

1,220

1,180

1,140

1,080

955

898

1,080

1,050

926

-

34,101

1,137

67,640

May

894

867

55T

1,080

1,120

1,140

1,100

1,060

1,200

1,310

1,540

1,410

1,250

1,160

1,100

1,060

 1,300

1,580

1,660

1,780

1,770

1,730

1,870

2,100

2,320

2,730

2,920

2,990

2,590

2,290

1,900

49,742

1,605

98,660

June

1,550

1,330

1,240

1,240

1,230

1,270

1,280

1,260

1,240

1,200

1,220

1,220

1,270

1,580

1,610

1,690

1,800

1,630

1,360

1,270

1,300

1,230

1,100

1,040

1,030

1,060

1,020

965

854

756

-

37,845

1,262

75,060

July

732- 752

676

628

561

513

480

468

464

452

439

433

409

395

376

358

368

398

404

381

366

345

318

303

296

278

257

*239

237

233

226

12,785

412

25,360

Aug.

218

218

210

205

200

193

185

180

175 T80"

219

237

235

231

229

229

229

235

235

237

233

235

243

239

233

227

221

219

218

*221

221

6,790

219

13,470

Sept.

219

219

218

216

190

143

130

120

115

115

115

115

114

112

111

111

166

283

301

505

303

303

301

299

296

294

292

290

287

285

-

6,366

212

12,630

Calendar year 1950: Max 14,300 Min 68 Mean 1,095 Ac-ft 792,600

Water year 1950-51: Max 14,300 Min 99 Mean 1,025 Ac-ft 742,400

Peak discharge (base, 1,900 cfs). Nov. 18 (12 p.m.) 23,300 cfs (18.13 ft); Dec. 3 (7 p.m.) 19.800 

cfs (17.12 ft)T Dec. 8 (7:30 a.m.) 17,900 cfs (16.52 ft); Dec. 14 (1:30 p.m.) 3,770 cfs (9.91 ft); 

May 28 (3 a.m.) 3,480 cfs (9.65 ft).

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 293

North Fork Stanislaus River near Avery, Calif.

Location.--Lat 38°14', long. 120°17', in sec. 35, T. 5 N., R. 15 E., on right bank, 700 

rt upstream from intake of Utica Canal, 3.5 miles upstream from Beaver Creek, and 

5 miles northeast of Avery.

Drainage area. 163 sq mi.

Records available.--July 1914 to September 1922, November 1928 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 3,400 ft (from topographic map). July 

T914 to September 1922, staff gage at same site, different datum.

Average discharge.--30 years (1914-22, 1929-51), 419 cfs.

Extremes. Maximum discharge during year, 29,000 cfs Nov. 18 (gage height, 13.8 ft, from 

riooamark in gage well; 14.5 ft, from floodmarks outside), from rating curve extended 

above 4,500 cfs on basis of slope-area determination of peak flow; minimum, 22 cfs 

Aug. 17.

1914-22, 1928-51: Maximum discharge, 31,100 cfs (revised) Dec. 11, 1937 (gage 

height, 14.1 ft, from floodmarks in gage well), from rating curve extended above 

4,500 cfs on basis of slope-area determination at 13.8 ft; minimum, 5.5 cfs Dec. 6, 

7, 1929.

Revisions.--The maximum discharge for water year 1938 has been revised to 31,100 

cfs uec. 11, 1937 (gage height, 14.1 ft, from floodmarks in gage well), superseding 

figure published in Water-Supply Papers 843, 861.

Remarks.--Records good except those for periods of tape-gage or no gage-height record, 

wnicn are fair. Flow regulated at low and medium stages by four reservoirs (total 

capacity now 16,200 acre-ft). Diversion from Beaver Creek into river, above station.

Cooperation.--Water-stage recorder graph and two discharge measurements, furnished by 

faciric Gas & Electric Co., obtained in connection with a Federal Power Commission 

project.

Rating table, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

0.8 

1.4 

2.0 

2.5 

3.0

129

200

304

3.5 

4.0 

5.0 

6.0 

7.0

446

636

1,190

2,080

3,300

9.0

11.0

11.7

6,900

13,400

16,700

Discharge, In cubic feet per second, water year October 1950 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.

55

m

65

65

65

65

65

63

62

64

64

65

65

65

65

66

66

67

67

67

67

68

70

80

97

152

303

145

141

431

30?

3,143

101

6,230

Nov.

182

165

163

156

139

129

122

116

114

109

106

105 109"

125

gl!6

169

314

12,500

g!5,000

g!6,500

g8,350

a2,200

al,400

al,100

a850

g690

g590

g510

g460

a510

-

63,099

2,103

125,200

Dec.

g600

g490

gll.100

*g5,000

gl,700

g2,000

a6,500

gll,000

g3,000

gl,600

gl,200

gl,000

878

2,050

1,250

967

824

736

667

607

546

502

463

440

414

390

362

346

338

327

a310

57,607

1,858

114,300

Jan.

a300

299

330

327

299

278

276

267

256

265

276

262

252

250 255-

254

262

489

364

309

307

853

967

TSS

611

566

550

516

466

414

387

12,216

394

24,230

Feb.

376

359

351

414

689

546

611

717

ms

649

676

628

531

494

456

427

414

399

367

362

356

340

325

317

314

307

299

285

-

_

-

12,658

452

25,110

Mar.

282

271

254

269

276

269

260

258

254

242

242

271

343

408

453

473

494

449

505

590

658

640

632

676

740

680

685

689

'BOZ 779

487

14,131

456

28,030

Apr.

466

5T2

550

543

623

736

835

856

998

1,200

1,200

*1,220

1,250

1,210

1,160

1,450

1,250

1,040

998

1,020

1,010

992

948

873

809

712

658

1,070

942

745

-

27,856

929

55,250

Calendar year 1950: Max 16,500 Mln - Mean 757

May

698

694

794

1,050

936

986

862

919

1,110

1,260

1,430

1,040

851

764

*736

824

1,010

1,100

1,120

1,120

1,060

1,000

967

973

942

1,020

1,040

1,020

789

694

566

29,375

948

58,260

June

446

39U

378

362

346

340

330

314

304

292

294

294

287

299

304

307

299

262

232

207

209

182

162

156

147

137

128

121

107

96

-

7,732

258

15,340

July

88

BT

81

83

79

74

70

69

68 55

79

83

87

86

85

83

83

82

81

80

79

82

83

*82

82

82

*83

81

80

80

84

2,492

80.4

4,940

Aug.

87

BT

83

82

80

78

76

74

77

81

77

72

65

58

51

28

4TJ

47

46

46

46

46

46

46

46

45

44

44

44

44

44

1,827

58.9

3,620

Sept.

44

44

44

43

42

44

494"9-

48

48

47

47

47

47

47

46

46

46

46

46

47

47

47

46

46

46

46

47

48

49

-

1,389

46.3

2,760

Ac-ft 547,800

Water year 1950-51: Max 16,500 Mln 28 Mean 640 Ac-ft 463,300

Peak discharge (base, 2,000 cfs). --Nov. 18 (about 11 p.m.) 29,000 cfs (13.8 ft); Dec. 3 (about 7

p.m.) about 25,000 cfs; Dec. 8 (time and discharge unknown); Dec. 14 (11 a.m.) 3,130 cfs (6.88 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for stations on nearby streams.

g Computed from occasional tape-gage readings.

256498 O - 53 - 20
294 SAN JOAQUIN RIVER BASIN

South Pork 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 1951.

Gage --Water-stage recorder. Altitude of gage, about 5,350 ft (from topographic map). 

T911-17, staff gage at site 1 mile downstream at different datum.

Average discharge. 13 years (1938-51), 124 cfs.

Extremes. Maximum discharge during year, 3,900 cfs Nov. 21 (gage height, 9.25 ft), from 

rating curve extended above 1,000 cfs on basis of contracted-opening determination of 

peak flow; minimum, 3.1 cfs Oct. 25.

1911-17, 1938-51: Maximum discharge, that of Nov. 21, 1950; minimum, 1.3 cfs Nov 

22, 23, 1946.

Revisions. The maximum discharge for the water year 1945 has been revised to 1,680 

cfs June 4, 1945 (gage height, 6.3 ft) superseding figure published in Water-Supply 

Paper 1041.

Remarks. Records excellent. Plow regulated at low and medium stages by Strawberry ReservoTr beginning in 1916 (capacity, 18,300 acre-ft). No diversion.

Cooperation.--Water-stage recorder graph and one discharge measurement, furnished by Pacific uas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Nov. 21 Nov. 22 to Sept. 30

1.3

1.4

1.5

1.6

4.0

7.0

11

17

32

2.0 

2.5 

3.0 

3.5

112

200

320

478

5.0 

6.0 

7.0 

7.5

925

1,500

2,130

2,480

1.5

1.6 

1.8 

2.0

2.5 

3.0 

3.5 

4.0

128

228

346

505

5.0 950

6.0 1,500

6.3 1,680

Discharge, In cubic' feet per second, water year October 1950 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.

60

60

60

60

61

61

62

62 

80 

107

103

102

102

102

102

3-92

102

100

100

75

58

60

61

51

4.0

43

49

26

26

52

59

2 , 152 . 0

69.4

4,270

Nov.

56

63

70

66

62

62

61

61 

61 

59

58

59

62

63

64

67

74

914

1,100

2,000

2,470

901

495

352

264

214

176

126

114

123

-

10,317

344

20,460

Dec.

112

100

1,270

1,050

375

465

1,320

1,650 

831 

544

364

328

152

*193

230

194

156

134

121

107

96

85

79

77

71

69

64

63

59

64

66

10,469

338

20,760

Jan.

67

70

71

69

67

66

64

64 

62 

63

63

62

63

62

62

61

59

61

61

61

62

62

124

103

90

85

88

90

88

82

77

2,229

71.9

4,420

Feb.

74

73

73

77

85

82

93

124 

130 

130

128

117

98

93

85

79

80

80

79

76

74

71

73

71

70

70

70

69

_

_

-

2,424

86.6

4,810

Mar.

69

67

66

63

63

63

63

63 

62 

61

73

80

83

83

87

87

90

91

95

100

107

102

107

114

121

119

121

126

134

119

110

2,789

90.0

5,530

Apr.

108

TTo

110

110

112

128

134

145 

202 

273

273

368

470

308

279

354

346

272

263

365

313

318

268

241

228

206

186

241

235

194

-

7,160

239

14,200

May

172

160

170

192

176

160

149

156 

236 

369

470

315

243

198

221

*308

447 *505

556

642

608

552

564

600

665

755

764

710

572

480

374

12,489

403

24,770

June

268

254

277

268

263

263

257

252 

241 

224

248

243

250

254

282

279

243

210

182

160

153

107

90

80

73

64

58

49

43

35

-

5,670

189

11,250

July

30

28

26

22

19

18

17

16 

15 

14

13

12

12

11

11

21

47

59

59

59

59

59

59

59

59

59

61

61

61

61

61

1,168

37.7

2,320

Calendar year 1950: Max 2,470 Mln 4.0 Mean 172 Ac-ft 124,200

Aug.

61

59

59

59

59

59

59

59 

59 

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

58

58

*58

58

58

1,826

58.9

3,620

Sept.

58

59

59

59

59

59

59

59 

59 

59

59

59

59

79

90

90

87

87

87

87

87

87

87

87

87

87

85

85

85

85

-

2,235

74.5

4,430

water year 1950-51: Max 2,470 Mln 4.0 Mean 167 Ac-ft 120,800

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 295

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 

3ownstream from diversion dam on South Pork Stanislaus River and 3 miles southwest of 

Strawberry post office.

Records available. October 1939 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage is 4,800 ft (from 

topographic map).

Average discharge. 12 years, 44.0 cfs.

Extremes. Maximum daily discharge during year, 59 cfs Oct. 7,8, Nov. 3; no flow at times. 

r937="51: Maximum daily discharge, 64 cfs Dec. 11, 1941; no flow at times during each 

year except 1943, 1946, 1947.

Remarks. Records excellent. Canal diverts from right bank of South Pork Stanislaus River 

Tor power development in Spring Gap power plant of Pacific Gas & Electric Co.; tailrace 

empties into Middle Fork Stanislaus River above station at Sand Bar Flat.

Cooperation. Water-stage recorder record, furnished by Pacific Gas & Electric Co., obtained 

Iri connection with a Federal Power Commission project.

Discharge, In cubic feet per second, water year October 1950 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.

58

58

58

58

58

58

59

59

58

58

58

58

58

58

58

58

58

58

58

48

58

58

58

54

3.8

29

42

20

20

33

53

1,580.8

51.0

3,140

Nov.

52

56

59

58

58

58

57

57

57

56

55

56

58

58

58

57

55

40

0

0

0

0

0

14

38

38

49

57

55

56

-

1,312

43.7

2,600

Dec.

55

*56

n

14

30

25

11

25

34

34

32

41

46

38

26

44

51

54

54

53

54

54

55

55

54

53

53

54

55

54

54

1,342

43.3

2,660

Jan.

54

54

52

49

53

55

55

55

55

55

51

43

49

54

50

43

43

44

48

54

53

52

54

54

54

54

54

54

54

55

55

1,609

51.9

3,190

Feb.

55

55

54

54

48

48

56

56

55

54

54

54

53

53

54

54

55

55

54

54

54

54

55

54

54

54

54

54

_

-

-

1,508

53.9

2,990

Mar.

55

57

40

39

39

39

39

39

39

44

52

55

55

55

53

54

55

55

54

54

54

54

55

55

54

54

55

55

55

54

54

1,571

50.7

3,120

Apr.

55

54

54

54

54

55

55

55

56

*52

50

52

52

53

51

55

54

52

53

54

55

54

54

53

53

54

54

51

48

52

-

1,604

53.5

3,180

May

53

53

54

56

55

55

56

57

56

55

55

53

53

54

55

53

55

54

54

54

54

54

56

55

55

55

56

*55

54

52

52

1,688

54.5

3,350

June

54

56

55

54

54

54

54

54

54

54

20

0

0

0

0

0

0

0

0

0

0

0

19

29

8.5

0

0

0

0

0

-

619.5

20.6

1,230

July

19

28

26

21

18

17

15

15

12

11

11

11

10

9.9

9.3

18

42

54

54

54

54

54

54

54

54

54

54

54

54

54

54

1,048.2

33.8

2,080

Aug.

54

54

53

53

53

54

54

54

54

54

54

54

54

54

55.

55

54

54

54

54

54

54

54

54

54

54

54

54

55

55

55

1,676

54.1

3,320

Sept.

55

55

55

55

55

54

54

55

54

54

54

55

55

54

54

54

54

54

54

54

54

54

54

54

54

54

54

54

54

54

-

1,628

54.3

3,230

Calendar year 1950: Max 59 Mln 0 Mean 43.4 Ao-ft 31,430

Water year 1950-51: Max 59 Mln 0 Mean 47.1 Ac-ft 34,090

Discharge measurement made on this day.
296 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 200 ft 

downstream from intake, 250 ft downstream from Lyons Reservoir on South Pork Stanislaus 

River, 2 miles west of Long Barn, and 14 miles northeast of Sonora.

Records available.--October 1937 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 4,100 ft (from topographic map).

Average discharge . 14 years, 22.5 cfs.

Extremes. Maximum daily discharge during year, 42 cfs Aug. 4; minimum daily, 7.9 cfs Nov. 1. 

iasy-51: Maximum daily discharge, 54 cfs June 26, 27, July 1, 1938, June 16-20, 22, 25,. 

1948; no flow at times.

Remarks.--Records excellent except those for periods of fragmentary gage-height record, 

wnicn are good. Canal diverts from left bank of South Pork Stanislaus River for power 

and domestic supply in vicinity of Sonora.

Cooperation. Water-stage recorder graph and four discharge measurements furnished by

raciric Gas & Electric Co. , obtained in connection with a Federal Power Commission project.

Discharge, in cubic feet per second,, water year October 1950 to September 1951

Day

1

a

3

4

5

6

7

8

9

10

11ia

13

14

15

16

17

18

19

ao

ai

22

as

24

as

as

a?

28

ag

30

31

Total

Mean

Ac- ft

Oct.

20

19

20

19

20

20

19

18

18

20

21

20

20

21

22

21

20

21

21

22

23" as

aa

18

17

f!8

f!7

17

17

17

15.

606

19.5

1,200

Nov.

IT~ 7.9

12

12

12

12

11

9.9

10

10

10

10

10

10

10

10

11

11

11

9.4

9.4

16

20

20

20

19

26

29

29

30

-

429.6

14.3

852

Dec.

30

»f29

f30" f34

29

23

1619-

19

19

19

26

ag

23

26

29

29

28

28

28

28

29

29

29

29

29

29

29

30

30

30

834

26.9

1,650

Jan.

30

29

29

29

29

29

29

29

29

29

29

29

29

29

29

30

30

30

30

29

29

29

30

31

31

30

30

31

31

31

31

919

29.6

1,820

Feb.

32

31

30

3T

32

32

31

31

32

33.

33

32

31

31

30

30

30

30

30

30

30

30

30

30

30

30

30

30

_

-

-

sea

30.8

1,710

Mar.

ag

31

32

32

33

33

33

33

33

33

32

33

33

33

33

33

33

33

33

33

33

33

32

32

32

32

32

31

31

30

31

1,000

32.3

1,980

Apr.

30

30

30

29

28

29

29

29

28

*27

29

29

31

30

30

34

35

34

32

32

32

32

33

33

32

33

34

34

35

34

-

937

31.2

1^60

May

34

34

34

34

ii

35

34

34

34

34

34

34

33

33

34

35

34

*31

32

34

ao

13

ia

12

12

11

8.1

9.4

*12

12

12

815.5

26.3

1,620

June

12

11

IT

12

11

12

12ia

12

12

12

14

14

15

26

33

35

31

35

35

35

35

34

34

34

35

35

35

35

35

-

714

23.8

1,420

July

35

35

34

34

30

29

30

29

29

30

30

32

35

35

34

35

35

37

37

37

36

36

36

36

37

36

*37

36

35

36

36

1,059

34.2

2,100

Aug.

36

35

38

42

IT

40

40

40

38

38

38

38

38

38

38

38

38

38

37

38

39

34

32

3?

32

32

34

35

»35

35

35

1,142

36.8

2,270

Sept.

35

35

34

35

34

33

33

33

32

32

sa

32

32

31

31

31

32

32

32

sa

32

32

33

32

32

33

32

32

32

32

-

975

sa.s

1,930

Calendar year 1950: Max 41 Kin 7.9 Mean 27.4 Ac-ft 19,820

Water year 195O-51: Max 42 Kin 7.9 Mean 28.2 Ac-ft 20,410

* Discharge measurement made on this day.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights and records 

of head gate operations.
SAN JOAQUIN RIVER BASIN 297

South Pork Stanislaus River near Long Barn, Calif.

Location. Lat 38°05', long. 120°11', in sec. 25, T. 3 N., R. 16 E., on left bank 600 ft 

Sbwnstream 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 1951.

Gage. Water-stage recorder and masonry control. Altitude of gage is 4,100 ft (from topographic map).

Average discharge.--13 years (1938-51), 85.9 cfs.

Extremes.--Maximum discharge during year, 4,900 cfs Nov. 21 (gage height, 9.3 ft), from 

rating curve extended above 1,400 cfs on basis of computed flow over Lyons Dam; minimum 

daily, 0.4 cfs July 27.

1937-51: Maximum discharge, that of Nov. 21, 1950; no flow for long periods in 

1937-39.

Revisions. The maximum discharge for the water year 1938 has been revised to 2,300 

cfs~June 2, 1938 (gage height, 7.14 ft), superseding figure published in Water-Supply 

Paper 861.

Remarks. Records good except those for periods of indefinite stage-discharge relation, 

which are poor. Flow regulated by Lyons and Strawberry Reservoirs since beginning of 

record (total usable capacity, 23,800 acre-ft). Tuolumne Canal (see preceding page) 

diverts at Lyons Dam; Philadelphia Canal (see p. 295) diverts 12 miles above station 

into basin of Middle Fork Stanislaus River.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtainea in connection with a Federal Power Commission project.

Rating table, water year 1950-51, except periods of Indefinite 

stage-discharge relation (gage height, in feet,

and discharge, In cubic feet per second) 

(Shifting-control method used July £8 to Sept. 30)

0.0 

.1 

.2 

.3 

.5

1.0

3.0

5.5

13

0.8 

1.3

£.0 

3.0 

4.0

29

67

148

326

586

5.0 950

6.0 1,480

7.0 2,180

8.2 3,400

Discharge, In cubic feet per second, water year October 1950 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.

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.2

2^ 

2.2

2.4

2^6 

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.4

2.4

2.2

75.2

2.43

149

Nov.

2.2

0 r> ^ v

2.0

2.0

2.0

2.2

2.2

2.4

2.4

2.6

2.6

2.8

2.8

2.8

2.8

2.8

2.8

3.8 

1,180

1,890

5.570 

1,220

677

459

505

204

171

91

62

64

-

9,716.2

524

19,270

Dec.

71

*54

1,250

1,650

608

474

1,550

1.920

1,180

752

505

586

247

*267

516

245

182

141 

114

99

85 

65

57

48

40

e55

e27

e24

e!5

e!4

el7

12,572

599

24,540

Jan.

e!5

e!9

e28

e51

e27

e!7

e!4

e8

e6

e9

e!7

e!5

e25

el5

e!2

e21

e26

m87

77 

165

156

129

105

102

100

97

89

81

65

1,871

60.4

5,710

Feb.

58

55

51

55

154

119

100

115

124

119

120

117

101

82

77

62

57

55 

46

42

e57 

e56

e55

e34

e55

e55

e52

e28

_

-

1,955

69.8

5,870

Mar.

e50

e25

e21

46

55

57

52

60

59

55

45

58

74

79

84

87

88

86 

85

85

87 

84

82

81

87

85

85

84

91

89

T7

2,157

69.6

4,280

Apr.

67

66

67

67

67

71

84

88

109

*226

209

255

418

550

198

275

500

254 

198

195

250 

225

212

168

151

140

110

179

204

157

-

5,500

177

10,510

May

120

104

101

209

162

144

115

101

126

261

415

502

209

112

51

e28

23?

*511 

592

568

570 

596

521

552

550

666

772

760

377

418

422

10,626

545

21,080

June

250

124

198

252

226

226

217

225

214

197

214

250

258

258

288

286

263

209 

166

133

154 

105

64

44

44

50

49

45

e56

e35_

-

5,038

168

9,990

July

e53

e!5

 e2

e.4

.6

1.0

1.2

1.6

100.8

5.25

200

Aug.

1.6

1.6

1.6

1.2

1.0

.9

.9

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9 T!.8

.8 

.8

.8

1.6

2.4

2.4

2.8

2TS

2.4

1.8

2.0

41.7

1.55

85

Sept.

2.0

2.0

2.0

2.0

2.0

2.4

2^6

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4 

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

-

70.2

2.54

159

Calendar year 1950 : Max 3,370 Min 0.4 Mean 141 Ac-ft 102,000

Water year 1950-51 : Max 3,370 Min 0.4 Mean 135 Ao-ft 97,820

* Discharge measurement made on this day.

e Stage-discharge relation indefinite; discharge estimated on basis of records of valve operations 

and release at Lyons Dam.
298 SAN JOAQUIN RIVER BASIN

Melones Reservoir at Melones Dam, Calif.

Location. lat 37 0 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 1951.

Gage.--Staff gage and reference point; gage read once daily. Datum of gage is at mean 

sea level.

Extremes. Maximum contents observed during year, 115,800 acre-ft May 27 (elevation, 

736.7 ft); minimum observed, 3,740 acre-ft Sept. 16 (elevation, 616.3 ft)'.

1927-51: Maximum contents observed, that of May 27, 1951; minimum, that of Sept.

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 ft (minimum operating level) and 735.0 ft (top of drumtype spillway gates) above mean sea level; usable capacity for irrigation, 110,000 acreft between elevations 610.0 ft (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 

is not available for release. Released water flows down Stanislaus River to Goodwin 

Dam, where it is diverted into Oakdale and South San Joaquin Canals for irrigation.

Cooperation. Record of contents, furnished by Pacific Gas & Electric Co., obtained in 

connection with a Federal Power Commission project.

Contents, in acre-feet, water year October 195O 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

Oct.

10, 6OO

10, 600

10, 600

10, 700

10, 800

10,800

10,900

alO, 900

10,900

10,800

10, 800

10, 700

10,700

10,700

10, 600

10,800

10,700

10, 600

10, 500

10, 500

10, 600

10, 900

11,200

11,400

11,700

12,300

13,800

16,000

17,400

18,200

20,300

Nov.

22,200

23,400

24, 500

26,100

27,000

28,100

29,000

29,300

29,400

28,900

28, 100

27,300

26,400

25,800

25,000

24,700

24, 500

26,300

107,100

104,400

112,200

101,400

101,400

101,400

100, 200

99,200

98,000

97,500

96,800

96,200

-

Dec.

96,700

96,700

95,500

108,900

130, 500

100, 600

104,900

106,900

101,900

103,300

101,400

99,900

98,900

96,200

97,500

96,200

95, 500

95,200

94, 800

94, 500

94,300

92,300

91,200

89,900

88,200

86,200

84,400

82,OOO

79,900

77,600

75,200

Jan.

72,900

70,500

71,100

72,300

73,600

74,600

75,500

75,900

76,500

78,000

79,500

80, 200

79,500

75,200

71,400

73,600

73,200

72,900

79,800

79,800

79,300

81,400

87,400

92,500

94,100

94,100

91, 500

87,900

84, 100

84,200

81, 800

Feb.

79,900

76,200

72,900

70, 100

67,400

73,900

79,200

83,900

89,100

92,800

93,800

94,300

94,100

93,800

93, 600

93, 600

93, 500

93,300

93,300

93,300

93, 100

93,300

93,000

93, 000

92,800

92,800

92,800

92,800

-

-

-

Mar.

92,800

92,800

92,800

92,500

94,000

94,100

93,800

93,600

93,300

93,300

93, 100

93,000

93,000

93,300

93,300

93,500

93, 500

93, 500

97, 200

97,200

95,000

94,600

93,800

93,600

93,600

93,800

93,800

94,300

94,300

94,500

94, 100

Apr.

94,000

93,600

93,600

93, 600

93, 600

93,800

94,300

95,300

96,800

99,000

102,400

101,600

101,200

100, 9OO

100, 600

99,900

100, 100

99,900

99,000

100,700

a.oi, ooo

100, 400

99,200

98,400

97,500

99,000

99,900

100, 700

103,600

100, 700

-

May

98,500

97,200

96,300

98,000

101,600

104,000

101,200

99,200

98,400

100,700

104,000

108,600

111,300

113,000

113,700

113,000

113,700

114,300

114,600

114,800

114,800

114,800

114,800

114,800

115,000

115,200

115,800

115,400

115,400

114,800

114,600

June

114,300

113,700

113,400

113,400

113,400

113,400

113,400

113,400

113, 4OO

113,400

113,200

113,200

113,200

113,400

113,500

113,700

113,900

113,900

113,500

113,400

113,000

112,600

112,400

111,900

111,100

110,400

110,000

109 , 800

109,500

108,700

July

108, 000

107,100

106, 200

105, 100

103, 800

102, 600

101,200

99,700

98,200

96,700

95,200

93, 600

92,200

90, 500

89,100

87,600

85,900

84, 400

83,200

81,800

80, 800

79,200

77,800

76,200

74,600

73,300

71,700

70,100

68, 600

67,000

65,500

Aug.

63,800

62,200

60, 500

58,500

57,400

55, 600

53,900

52,300

50, 600

48, 800

47,100

45, 7OO

44,000

42, 500

40, 800

39,200

37,500

35,900

34,400

32,700

31,200

29,500

27,800

26, 100

24,400

22,900

20, 500

19,600

18,8OO

18,000

17,300

Sept.

16,400

15, 800

15, 100

14,300

13, 600

12,500

11,4OO

10, 100

9,220

8,080

6,860

6,190

5,080

4,400

4,010

3,740

3,910

4,460

5,320

6,160

7,070

8,290

8,750

9,570

10, 300

10, 600

10, 700

10,800

10,800

11,200

-

a No gage-height record) contents computed on basis of outflow.

Monthly elevation and contents, water year October 1950 to September 1951

Date

Oct. 31. ...................

Dec . 31 ....................

Calendar year 1950 .......

Feb . 28 ....................

Apr. 30. ...................

June 30 ....................

July 31 ....................

Aug. 31. ...................

Sept . 30 ....................

Elevation 

(feet)t

712.1

.

732.9

641.3

Contents 

(acre-feet)

75,200

-

92,800

108,700

17,300

11,200

Change In contents 

during month 

(acre-feet)

+21,000

+46,900

-11,000

-5, 900

-48,200

-6,100

+700

t Elevation at 8 a.m.
SAN JOAQUIN RIVER BASIN 299

Stanislaus River below Melones powerhouse, Calif.

Location.--Lat 37°56'50", long. 120°31'45", near line between sees. 10 and 15, T. IN., 

K. 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 1951.

Sage. Water-stage recorder. Altitude of gage is 500 ft (from topographic map).

Average discharge. 20 years, 1,516 cfs.

Extremes. Maximum discharge during year, 49,500 cfs Nov. 21 (gage height, 25.18 ft), from 

rating curve extended above 18,000 cfs on basis of computed flow over Melones Dam; minimum, 4.5 cfs Sept. 19.

1931-51: Maximum discharge, that of Nov. 21, 1950; minimum, 0.4 cfs Jan. 19, 20, 

1943.

Remarks. Records good. Flow 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 one discharge measurement, furnished by FacifTcuas & Electric Co., obtained in connection with a Federal Power Commission project.

Revisions (water years).--W 843: 1936(M).

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

Z 

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.

128

142 

143

138

194

173 

194

185

194

197

188

190

190

272

i§

274

275

185

159

150

18

18

149

154

153

150

147 

18 

87

148

139

4,768

154

9,460

Nov.

137

148 

132

16

H

143 

397

462

781

845

845

845

845

832

873

846

846

907

17,900

28,000

a36,900.

all, 700'

a5,400j

a5,200

a4,400

a3,60O

2,720 

2,40O 

2,290

1,820

-

132,246

4,408

262,300

Dec.

2,6OO

2,230 

15,800

a24,800

a9,400

7,560

20,000

51,000

13,900

9,230

7,030

5,610

*5,700

6,760

6,720

4,890

4,110

3,620

3,280

2,980

3,450

3,100

2,910

2,890

2,890

2,890

2,880 

2.820 

2,820

2,800

2,800

219,470

7,080

435,300

Jan.

2,760

1,800 

938

950

950

938 

923

938

548

650

1,850

2,8OO

2,770

2,750

1,580

*1,500

1,740

1,670

2,390

2,540

1,670

970

949

1,580

2,670

3,460

4,050 

4.270 

3,140

1,370

3,560

60,674

1,957

120,300

Feb.

3.540

3,566 

3,500

2,850

*550

10 

To

82

486

1,720

2,460

2,840

2,600

2,310

2,170

2,O40

1,940

1,880

1,750

1,710

1,580

1,730

1,600

1,520

1,470

1,450

1,450 

1,390

-

-

 50,138

1,791

99,450

Mar.

1,410

1,470 

1,380

1,430

2,630

2,580 

*2,140

2,150

1,940

1,820

1,690

1,630

1,680

1,810

1,920

1,990

2,050

376

1,100

3,500

2,590

2,350

2,300

2,190

2,280

2,340

2,100 

2,150 

2,290

2,370

2,090

61,946

1,998

122,900

Apr.

1,970

1,860 

1,900

1,910

1,910

1,960 

1,840

1,770

*1.710

1,730

3,120

3,960

3,770

3,720

3,590

3,500

3,520

3,410

2,350

1,860

3,520

3,530

3,200

2,960

1,960

1,740

1,740 

1,740 

3,650

3,540

78,940

2,631

156,600

May

2,950

2,610 

1,900

1,710

1,710

3,650 

3,690

3,200

2-, 080

1,720

1,730

1,750

1,750

1,980

*2,370

2,090

2,370

3,170

3,500

3,730

3,700

3,610

3,540

3,750

3,880

4,250

5.070 

4,720 

4,340

3,470

3,220

93,210

3,007

184,900

June

2,700

2,250 

2,050

2,OOO

2,010

2,010 

2,030

2,020

1,960

1,890

1,860

1,900

1,950

2,030

2,220

2,360

2,470

2,370

2,130

1,930

1,820

1,760

1,700

1,670

1,670

1,470

1,400 

1,400 

1,400

1,400

57,830

1,928

114,700

July

1,380

1,380 

1,380

1,380

1,370

1,400 

1,370

1,370

1,370

1,370

1,360

1,360

1,360

1,350

1,340

1,340

1,240

1,210

1,210

1,210

1,200

1,190

1,190

1,180

1,180

1,170

1,170 

1,160 

1,160

1.150

1,150

39,650

1,279

78,640

Aug.

1,140

1,150 

1,150

1,150

1,140

1,130 

1,130

1,130

1,130

1,130

1,130

1,120

1,130

1,130

1,140

1,150

1,140

1,130

1,130

1,120

1,120

1,120

1,130

1,120

1,120

1,120

*1,120 

785

663

658

655

33,314

1,075

66,080

Sept.

654

654

668

676

676

663 

663

672

676

672

440

584

636

352

302

191

6.6

4.8

4.5

5TS

7.0

8.2

5.4

51

227

286

287 

288 

288

300

-

10,947.5

365

21,710

Calendar year 195O: Max 36,9OO Mln 3.1 Mean 2,396 Ac-ft 1,734, OOO

Water year 1590-51 : Max 36.9OO Mln 4.5 Mean 2,310 Ac-ft 1,672,000

* Discharge measurement made this day.

a No gage-height record; discharge estimated on basis of records of dam and powerhouse operation.
300 SAN JOAQUIN RIVER BASIN

South San Joaquin Canal near Knights Perry, Calif.

Location. Lat 37°51'20", long. 120°38'15", in sec. 15, T. IS., R. 12 E., on left bank 0.8 

mile downstream from head gate at Goodwin Dam and 4 miles upstream from Knights Perry.

Records available.--May 1914 to September 1951.

Gage. Water-stage recorder and concrete control. Altitude of gage, about 345 ft (from 

topographic map). Prior to Mar. 12, 1915, staff gage 100 ft downstream. Staff gage at 

present site Mar. 12, 1915, to July 1, 1921.

Average discharge. 32 years (1914-30, 1931-32, 1936-51), 374 cfs.

Extremes . Maximum daily discharge during year, 1,180 cfs June 16, 17; minimum daily, 0.1 

 cTsTTeb. 23, 26-28, Mar. 6-12.

1914-51: Maximum daily discharge, that of June 16, 17, 1951; no flow at times each 

year except 1951.

Remarks. Records good except those below 5 cfs, which are fair. Canal diverts from right 

dank 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 1950 to September 1951

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

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

70

58

44 

38

41

46

46

47

47

50

53

53

54

55

44

15

*25

25

25

19

19

18

17

20

20

20

19

18

17

19

19

1,061

34.2

2,100

Nov.

9.8

.2

54

75

25

25

80

188

215

245

325

414

444

446

447

440

448

457

378

408

468

468

478

516

566

465

469

416

377

374

-

9,721.0

324

19,280

Dec.

378

317

128 

1.0

.8

.6

.8

1.0

.4

.4

.4

.3

1.6 

1.7

1.4

1.5

1.4

1.7

2.1

2.0

2.0

1.8

24

84

89

51

58

66

68

72

97

1,454.9

46.9

2,890

Jan.

126

128

127

138

146

56

72

121

120

117

102

47

1.3 

2.0

1.4

1.3

1.1

1.7

*1.7

1.7

1.7

.9

174

1.3

1.4

1.7

1.4

1.3

1.4

1.5

1.4

1,327.6

42.8

2,630

Feb.

1.4

1.4

40 

181

166

14

24

12

54

256

305

310

308 

305

169

286

317

331

326

322

274

101

.1

12

18

.1

.1

**.!

-

-

-

4,133.2

148

8,200

Mar.

0.5

.3

.3

.5

.4

.1

7T

.1

.1

.1

.1

.1

.8 

.3

.3

.3

.3

.3

.3

.3

.3

.3

181

547

671

723

893

1,030

1,070

1,100

1,110

7,331.2

236

14,540

Apr.

1,080

1,050

1,110 

1,100

1,050

1,010

971

944

944

920

917

906

887 

888

887

887

924

978

1,010

1,020

1,020

1,020

1,030

*1,030

972

935

1,040

938

539

265

-

28,270

942

56,070

May

296

496

503 

388

388

397

468

681

746

857

938

1,010

1.090 

*1,O9O

954

816

856

916

952

966

946

894

912

924

923

923

916

878

881

947

947

24,899

803

49,390

June

995

1,070

1,120 

1,120

1,110

1,040

983

995

910

968

1,060

1,110

1,130 

*1,150

1,170

1,180

1,180

1,160

1,150

1,150

1,130

1,080

1,080

1,060

1,070

966

874

878

878

878

-

31,645

1,055

62,770

July

877

875

874 

872

871

878

871

87O

87O

868

867

864

860 

854

851

849

801

766

760

760

759

756

753

752

751

745

*742

741

739

737

751

25,164

812

49,910

Aug.

728

731

735 

75?

750

727

725

750

728

724

723

723

723 

728

731

732

731

724

723

721

718

720

725

724

721

721

720

536

*438

459

445

21,454

692

42,550

Sept.

444

444

446 

449

451

446

444

446

448

449

579

509

491 

292

177

174

44

.4

.4

.5

.3

.2

.2

.2

5.8

19

16

25

28

28

~

6,456.8

215

12,810

Calendar year 1950: Max 1,150 Mln 0.2 Mean 485 Ac-ft 351,100

Water year 1950-51: Max 1,180 Mln 0.1 Mean 446 Ac-ft 323,100

Discharge measurement made on this day. 

* Field estimate made on this day.
SAN JOAQUIN RIVER BASIN 301

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

 5ank"J.,800 ft downstream from head gate at Goodwin Dam and 4 miles upstream from Knights 

Ferry.

Records available.--May 1914 to September 1951.

<jag° --Water-stage recorder. Altitude of gage, about 350 ft (from topographic map). Prior

 To Apr. 29, 1916, staff gage 800 ft downstream from head gate at different datum.

Average discharge.--33 years (1914-32, 1936-51), 121 cfs.

Extremes.--Maximum daily discharge during year, 497 cfs June 12, 15, 16, 24; no flow during

SeV 1914-5l" Maximum daily discharge, that of June 12, 15, 16, 24, 1951; no flow during 

periods in each year.

Remarks.--Records good except those below 10 cfs, which are poor. Canal diverts water

 from left bank of Stanislaus River at Goodwin dam for irrigation in Oakdale irrigation 

district.

Cooperation.--Gage-height record and 12 discharge measurements furnished by Oakdale irrigation District.

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

51

60

85

95

99

106

113

119

122

126

116

115

116

117

82

.8

*.8

.7

.6

.5

.3

4.0

3.2

.1

.2

.2

.2

0

0

0

0

1,533.6

49.5

3,040

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

.4

.T_

.2

.2

.1

.6

.6

.3

.2

.2

.1

.1

0

0

0

0

0

-

3.7

0.12

7.3

Dec.

0

0

1.1

.4

.2

.8

1.0

.5

.2

.2

.2

.2

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

5.1

0.16

10

Jan.

0

0

0

.1

0

0

0

0

0

^1

.2

.3

0

0

0

0

0

.1

**.2

-.2

.2

.1

.1

.1

.1

.1

0

0

0

0

0

2.7

0.09

5.4

Feb.

0

0

0

Mar.

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

*22

*149

*286

*351

*569

1,177

38.0

2,330

Apr.

405

408

*417

409

*432

435

445

450

*453

463

471

464

473

*482

487

487

*488

*488

486

486

486

483

484

484

474

476

484

228

68

M.-

12,842

428

25,470

May

46

46

44

44

44.

46

46

188

384

447

464

482

484

*484

485

483

485

484

484

483

481

484

485

405

476

483

483

486

488

490

490

11,404

368

22,620

June

490

490

490

493

495

295

495

494

496

494

493

497

496

*496

497

497

496

494

494

494

494

494

*493

497

494

454

426

429

429

429

-

14,525

484

28,810

July

429

42T

427

427

426

428

426

425

424

424

422

422

420

417

416

410

379

376

376

374

374

373

370

369

368

366

*366

365

363

361

560

12,310

397

24,420

Aug.

357

357

357

355

355

353

352

355

354

351

351

351

352

354

354

355

355

353

351

350

349

350

352

352

350

351

350

245

*195

196

197

10,359

334

20,550

Sept.

196

198

200

201

202

201

199

200

201

201

152

124

~B9 231

89

101

6.5

1.0

.6

.5

.5

.4

.3

.3

.3

.3

.3

.3

.3

.3

-

2,796.9

93.2

5,550

Calendar year 1950: Max 484 Min 0 Mean 194 Ac-ft 140,300

Water year 1950-51: Max 497 Min 0 Mean 183 Ac-ft 132,800

Discharge measurement made on this day. 

* Field estimate made on this day.
 ^ SAN JOAQUIN RTVER BASIN

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 

at Highway bridge, 1 mile southeast of Ripon and 15 miles upstream from mouth.

Records available. October 1940 to September 1951 in reports of Geological Survey. April 

liJ4U to Decemcer 1951 in reports of Division of Water Resources, Department of Public 

Works, State of California.

Gage. Water-stage recorder. Datum of gage is at mean sea level, unadjusted (levels by

 Kodesto Irrigation District).

Average discharge. 11 years, 1,184 cfs.

Extremes. Maximum discharge during year, 48,500 cfs Nov. 21 (gage height, 62.78 ft); mini-

 mum, 119 cfs Oct. 9, 10.

1940-51: Maximum discharge, that of Nov. 21, 1950; minimum, that of Oct. 9, 10, 

1950.

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 fair except those for periods of doubtful or no gage-height record, which 

are poor. Flow regulated by reservoirs and power plants above station (see Remarks for 

station below Melones powerhouse). Many diversions above station for irrigation.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Rating tables, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 3-19, Jan. 14-16, June 21 to July 4)

Oct. 1 to Jan. 20 Jan. 20 to Sept. 30

37.4

38.0

41.0

48.0

52.0

122

214

814

2,810

4,350

54.0

55.0

57.0

61.0

5,810

7,350

15,100

37,000

37.4

38.0

40.0

43.0

138

209

527

1,310

46.0 2,330

49.0 3,460

51.4 4,510

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

51

Total

Mean

Ac-ft

Oct.

164

166

162

158

142

151

146

146

*129

126

150

129

156

145

146

159

171

190

262

260

251

245

206

196

182

228

258

501 2TS" 

216

185

5,745

185

11,590

Nov.

224

258

245

251 2"06

172

152

151

*315

450

617

619

579

548

534

524

534

558

1,960

10,600

*55,400

55.000

16,500

8,270

5,610

4,720

5,880

5,260

2,950 

d2,700

-

155,547

4,518

268,900

Dec.

d2,270

d2,550

d2,650

*14,500

25,500

11,900

9,770

*25,300

51,800

16,300

10,500

7,820

6,160

5,670

6,260

6,800

5,590

4,750

4,240

5,810

5,480

5,620

5,510

5,290

5,200

5,150

5,120

5,090

5,060 

3,030

5,010

255,660

7,602

467,400

Jan.

2,980

2,940

2,590

1,740

1,650

1,550

1,550

1,500

1,440

1,560

1,550

2,950

5,440

5,180

5,070

*d2,260

dl , 900

d2 , 000

d2,500

d5,100

d3,200

d2,510

dl,660

dl,600

*d2,110

d2,940

5,550

4,140

4,500 

5,940

2,200

77,100

2,487

152,900

Feb.

5,650

5,650

5,660

3,820

5,510

2,190

1,020

770

665

631

1,440

*2,610

5,280

2,870

2,570

2,510

2,270

2,120

2,000

1,910

1,810

1,700

1,990

1,880

1,740

1,670

1,690

1,720

:-

61,546

2,198

122,100

Mar.

1,670

1,960

1,850

1,660

2,050

5,550

5, ISO

*2,690

2,540

2,510

2,130

1,980

1,880

1,920

2,100

2,200

2,220

2,260

1,240

1,150

5,250

5,000

2,790

2, 580

1,920

1,810

1,790

1,510

1,280 

*1,180

1,140

64,550

2,075

127,600

Apr.

956

821

651

620

600

589

686

596

568

490

475

1,4"OT3

*2,540

2,530

2,530

2,440

2,350

2,510

2,170

1,550

702

1,850

2,220

1,950

1,700

986

654

629

960 

2,690

-

41,153

1,571

81,590

May

3,520

5,000

2,450

1,950

1,760

1,710

5,160

3,480

*2,630

1,470

842

665

578

539

527

992

981

1,100

1,690

2,110

2,370

2,390

2,570

2,550

*2,730

2,650

3,000

5,650

5,670

3,260

2,420

66,014

2,129

150,900

June

1,900

1,S30

1,090

836

714

665

668

733

679

684

626

*549

486

486

533

661

758

849

800

656

509

419

372

369

527

502

506

*284

257 

256

-

19,302

645

58,280

July

a255

255

255

266

259

*245

241

225

225

204

216

200

255

225

222

226

218

210

209

204

208

206

*222

204

204

208

202

195

209 

201

185

6,831

220

13,550

Aug.

188

170

175

181

208

206

190

181

172

170

169

191

*177

185

169

169

164

164

175

171

175

166

*175

195

171

178

192

196

191 

178

165

5,555

179

11,010

Sept.

165

159

148

150

165

159

151

150

156

156

149

156

*141

I4T

147

154

172

159

172

195

178

164

169

159

*155

152

151

238

292 

527

-

5,131

171

10,180

Calendar year 1950: Max 55,000 Mln 126 Mean 1,957 Ac-ft 1,417,000

Water year 1950-51: Max 55,000 Mln 126 Mean 1,985 Ac-ft 1,456,000

* Discharge measurement made on this day. 

a No gage-height record; discharge interpolated.

d Doubtful gage-height record; discharge computed from reconstructed gage-height graph based on recorder graph and record for an upstream station.
SAN JOAQUIN RIVER BASIN 303

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 1951 (192S-23, 1925-29, low-water records only).

Gage. Water-stage recorder. Datum of gage is 8.4 ft above datum of Corps of Engineers. 

July 28, 1922, to September 1946, water-stage recorder at various sites on or within 

100 ft of Durham Ferry bridge. Prior to Apr. 1, 1931, at different datum.

Average discharge.--22 years (1929-51), 5,000 cfs.

Extremes. Maximum discharge during year, about 79,000 cfs Dec. 9 (gage height, 27.75 ft); 

minimum, 428 cfs Aug. 1.

1922-51: Maximum discharge recorded, that of Dec. 9, 1950, including flow through 

breaks in levee; minimum discharge, 184 cfs Aug. 14, 1931.

Remarks.--Records good prior to Mar. 1 except those above 30,000 cfs, which are fair; those 

afEer Mar. 1, fair. Practically entire flow of river and tributaries diverted during 

irrigation season; low flows consist mainly of return water. Records of chemical 

analyses and water temperatures for the water year 1951 are given in Water-Supply Paper 

1200.

Cooperation. Eleven discharge measurements furnished by the State of California and one 

tfy uorps of Engineers.

Revisions (water years).--W 831: 1936. W 931: 1940.

Discharge, in cubic feet per second, water year October 1950 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.

944

1,020

1,080

1,010

968

908

974

1,030

1,020

950

*902 1,030" 

1,290

1,370

1,410

1,400

1,410

1,420

1,400

1,430

1,510

1,530

1,520

1,540

1,650

1,660

1,750

1,790 

1,7BO

1,700

1,650

41,046

1,324

81,410

Nov.

,670

,700

,770

,810

,790

,680

,560

1,610

,610

,660

,840

,930 

,890

,820

,850

,870

* ,870

2,020

2,350

5?260

14,800

623,000

«e50,000

27,200

23,000

19,900

18,000

16,800 

15,900

14,900

-

243,060

8,102

482,100

Dec.

13, 100

10 , 800

9,980

10,300

19,900

25,000

*25,300

640,000

670,000

e 70, 000

*56,000

46,900 

39,900

32 , 000

26,800

25,500

24, 100

22,200

21,100

20,600

20,200

19,500

18,800

17,600

15,600

14,400

13 , 800

13,200 

12,600

12,100

11,700

778,980

25,130

1,545,000

Jan.

11,400

10,900

10,200

8,700

7,630

6,880

6,440

6,220

5,940

5,680

5,330

6,230 

8,440

8,490

8,520

*8,660

8,470

9,550

10,400

11,100

12,700

13,800

13,700

*14,000

14,300

14,700

14,700

14,600 

14,500

14,100

12,400

318,680

10,280

632,100

Feb.

11,500

11,700

11,600

11,300

11,000

10,600

10,200

10,000

*9,820

9,970

10,800

11,700 

12,900

13,300

13,200

13,100

12,900

12,400

11,800

11,100

9,980

9,340

9,260

9,260

9,100

8,800

8,290

*7,850

_

-

302,750

10,810

600,500

Mar.

8,350

8,820

8,960

8,290

7,810

8,740

a9,400

*a9,400

9,220

9,040

8,830

8,440 

7,950

7,380

7,460

7,950

7,980

8,020

7,580

6,660

7,580

7,900

7,720

7,870

7,390

7,050

6,800

6,320 

*5,890

5,280

4,760

240,840

7,769

477,700

Apr.

3,970

3,420

3,230

3,000

2,830

2,610

2,630

2,440

2,220

2,000

1,820

*1,820 

*2,890

3,160

3,250

3,150

3,030

3,000

3,000

2,680

1,920

2,000

2,750

2,620

2,570

2,350

*1,930

1,860 

2,230

3,190

-

79,570

2,652

157,800

May

4,730

5,370

5,200

4,970

5,190

5,570

6,620

7,670

*6,750

5,260

3,990

3,670 

3,750

4,000

3,910

3,720

3,900

3,770

3,900

4,400

4,970

6,350

8,210

8,950

9,460

9,660

9,720

10,600 

12,100

13,200

*12,700

202,260

6,525

401,200

June

10,500

7,350

5,180

3,930

3,340

2,990

2,630

2,410

2,490

2,820

2,780

*2,700 

2,580

2,460

2,630

3,440

3,770

3,960

4,060

4,040

3,120

3,300

3,530

2,820

2,450

2,210

2,020

*1,780 

1,480

1,370

-

100,140

3,338

198,600

July

dl,300

dl,300

dl,300

1,210

*1,180

1,110

955

955

1,050

1,030

977

966 

872

944

977

988

933

850

784

675

600

655

635

*640

605

508 510-

555 

555

670

655

26,974

870

53,500

Aug.

498

454

39TT

600

630

645

640

585

575

595

655

757 

*856

774

686

570

665

740

840

916

911

*845

850

834

955

938

994

999 

994

1,050

 59T

23,543

759

46 , 700

Sept.

994

999

1,050

1,050

1,020

950

982

982

994

1,040

982

906 

*872

867

EST

960

966

955

972

938

966

1,150

1,180

1,190

*1,130

1,110

1,110

1,160 

1,310

1,370

-

31,039

1,035

61,560

Calendar year 1950: Max 70,000 Mln 453 Mean 5,009 Ac-ft 3,626,000

Water year 1950-51: Max 70,000 Min 454 Mean 6,545 Ac-ft 4,738,000

* Discharge measurement made on this day.

a No gage-height recordj discharge estimated on basis of partial gage-height record, recorded rang 

in stage, and l discharge measurement.

d Doubtful gage-height record; discharge computed on basis of partial gage-height record and records for station near Newman.

e Stage-discharge relation indefinite; discharge estimated on basis of records for tributary 

streams.
304 SAN JOAQUIN RIVER BASIN

San Domingo Creek near San Andreas, Calif.

Location.--Lat 38°07', long. 120°37', in NE£ sec. 14, T. 3 N., R. 18 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,060 ft (from topographic map). Prior

 fo Dec. 6, 1950, staff gage and crest-stage indicator at same site and datum; gage read 

once daily.

Extremes.--1950: Maximum discharge during period January to September, 928 cfs Feb. 4

 (gage height, 4.45 ft); no flow June 29 to Sept. 30.

1950-51: Maximum discharge during water year, 735 cfs Nov. 20; maximum gage height, 

4.18 ft Dec. 8; no flow Oct. 1-5, Aug. 27 to Sept. 30.

Remarks. Records good except those prior to Dec. 6, which are fair. San Domingo Creek

 receives water above station at times from North Fork Stanislaus River by way of Utica 

Reservoir. Some diversions above station for irrigation.

0.4

.5

Rating tables, Jan. 9, 1950, to Sept. 30, 1951 (gage height, In feet, and discharge, 

In oublo feet per second)

Jan. 9 to Dec. 5, 1950

0.9 

1.1 

1.4 

1.8 

2.2

3.2 

8.2

20

2.6 

3.0 

3.5 

4.0

140

226

392

645

0.4 

.5 

.6 

.7

Dec. 6, 1950, to Sept. 30, 1951

.1

.3

.6

1.2

0.9 

1.1 

1.3 

1.6 

2.0

2.3

6.7

13

30

59

2.5 116

3.0 219

3.5 380

4.0 620

Discharge, In cubic feet per second, 1950-51 

1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

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.

_

_

_

_

-

_

_

_

8.2

6.2

23

16

9.2

18

9.8

56

185

48

27

19

19

20

26

29

16

12

12

70

38

22

17

_

_

-

Feb.

14

12

14

4£L

164

408

104

52

36

36

32

22

18

16

16

*14

12

11

9.8

alO

a9

10

8.9

8.2

8.2

7.6

7.4

7.1

_

_

-

1,494.2

53.4

2,960

Mar.

6.8

6.5

6.2

6.0

6.0

5.7

6.0

a6.0

6.0

5.4

6.8

6.0

5.4

5.4

5^2

5.2

8.2

14

16

12

8.5

9.8

11

81

124

63

38

30

26

20

17

573.1

18.5

1,140

Apr.

16

14

12

12

11

all

14

64

106

60

38

30

27

21

18

17

16

16

*17

16

13

12

11

9.5

8.9

8.5

8.2

8.2

7.6

7.6

-

630.5

21.0

1,250

May

11

14

13

11

11

alO

9.5

7.6

6.2

7.1

6.5

6.0

5.4

5.4

5.2

5.2

5.2

5.0

5.2

5.0

4.5

4.5

4.3

4.3

4.1

3.9

a3.5

3.2

2.9

L£

2.6

194.9

6.29

387

June

2.4

2.3

2.3

a2.2

2.2

2.0

2.0

1.8

2.0

2.0

a2.0

2.2

1.2

.7

.6

.6

.4

.4

.3

.3

.2

.2

.2

.1

.1

.1

.1

.1

0

0

-

31.0

1.03

61

July

(*)

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year : Max Mln Mean Ac -ft

Water year : Max Mln Mean Ao-ft

* Discharge measurement made on this day.

a Doubtful or no gage-height record; discharge Interpolated or estimated on basis of records for 

.tatlons on nearby streams.
SAN JOAQUIN RIVER BASIN 305

Discharge, In cubic feet per second, of San Domingo Creek near San Andreas, Calif., 1950-51 Continued

1950-51

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

a.l

a. 2

a. 2

.3

a. 3

.4

a. 5

.7

a. 9

al.l

al.5

2.0

1.8

1.5

1.5

al.5

a2.0

2.4

2.3

2.6

20

7.6

a5

a4

8.2

5.7

74.3

2.40

147

Nov.

4.3

1.7

2.2

2.2

a2.1

2.0

1.7

*2.2

1.7

1.7

al.7

a2

3.6

5.2

a5

21

9.8

318

310

421

99

49

34

28

24

a!5

alO

8.9

7.6

6.8

1,402.4

46.7

2,780

Dec.

5.4

5.7

a!50

85

70

100

295

*481

144

78

55

42

35

98

65

48

39

33

28

25

22

20

18

17

16

14

13

11

11

13

13

2,050.1

66.1

4,070

Jan.

11

12

16

15

13

11

12

13

11

19

*132

91

51

40

41

42

41

230

178

97

72

109

82

66

54

46

40

37

35

31

27

1,675

54.0

3,320

Feb.

25

22

22

24

81

48

39

33

30

30

34

47

*35

31

28

26

25

25

22

21

21

21

19

18

11

18

21

19

-

 .

-

802

28.6

1,590

Mar.

26

28

24

72

187

*122

109

92

80

64

51

46

42

36

33

31

28

26

24

22

21

19

18

17

17

16

15

14

13

14

13

1,320

42.6

2,620

Apr.

14

13

12

12

11

11

10

9.9

9.9

9.9

9.6

9.3

9.0

9.0

8.7

9.0

*8.4

8.4

8.1

8.1

1=1

7.8

9.3

8.1

9.0

9.0

8.1

17

Si

16

-

316.4

10.5

628

May

11

*9.9

12

44

24

18

15

12

10

9.6

9.3

9.6

9.9

9.9

8.1

7.0

6.7

6.2

5.5

5.2

5.2

5.2

.0

.7

.3

.1

.3

5.0

4.3

3.2

2.8

291.0

9.39

577

June

2.3

2.2

2.0

1.6

*1.6

1.7

1.4

1.3

1.2

1.0

.9

.9

.9

.8

.7

.6

.7

1.0

1.0

1.4

1.3

1.2

1.2

1.0

.8

.8

.6

^

.5

.8

-

33.9

1.13

67

July

1.0

1.1

.9

2.8

5.0

8.0

.8

.6

.8

.7

.8

.8

.8

.6

.5

.5

.5

*.5

.4

^3

.4

.4

.5

!4

.3

.3

31.7

1.02

63

Aug.

0.2

.2

.2

.2

.2

.6

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

4.6

0.15

9.1

Sept.

0

0

0

Calendar year 1950 : Max - Min - Mean - Ac-ft -

Water year 1950-51 : Max 481 Min 0 Mean 21.9 Ac-ft 15,870

Peak discharge (base. 150 cfs) . Nov. 20 (time unknown) 735 cfs (4.15 ft); Dec. 8 (5 a.m.) 728 cfs 

(4.18 ft); Dec. 14 (11 a.m.) 150 cfs (2.70 ft); Jan. 11 (1 p.m.) 320 cfs (3.33 ft); Jan. 18 (5:30 

p.m.) 447 cfs (3.66 ft); Mar. 5 (l p.m.) 202 cfs (2.93 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge interpolated or estimated on basis of records for San Antonio 

Creek near San Andreas.
306 SAN JOAQUIN RIVER BASIN

San Antonio Creek near San Andreas, Calif.

Location.--Lat 38°07'50", long. 120°38'10", in NEij 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 southwest of San Andreas.

Drainage area.--46.4 sq mi.

Records available. January 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 940 ft (from topographic map). Prior to 

Dec. 28, 1950, staff gage and crest-stage indicator at same site and datum; gage read 

once daily.

Extremes.--1950: Maximum discharge during period January to September, 1,220 cfs, Feb. 4 

(gage height, 4.50 ft); no flow Sept. 5-12.

1950-51: Maximum discharge during water year, 1,220 cfs Nov. 18 (gage height, 4.50 

ft, from floodmarks); minimum observed, 0.5 cfs Oct. 4.

Remarks.--Records good except those prior to Dec. 28, 1950, which are fair. Some diversior 

lor mining and logging above station.

o.i 

.2 

.3

Rating tables, Jan. 9, 1950, to Sept. 30, 1951 (gage height, in feet, and discharge, 

in cubic feet per second)

Jan. 9 to Dec. 8, 1950 Dec. 9, 1950, to Sept. 30, 1951

0.0 

.1 

.2

0.6 

.7

1.2 

1.9

1.3 

1.5 

1.7 

1.9 

2.2

2.5 

3.0 

3.5 

4.0

247

438

680

945

4.5 1,220

0.6 1.1

.7 1.6

.8 2.2

.9 2.9

1.0 4.0

1.1

1.2

1.3

1.5 

1.7

5.4

7.8

12

26

43

1.9 

2.1 

2.5 

3.0 

3.5

104

228

438

Discharge, in cubic feet per second, 1950-51 

1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

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.

.

_

_

_

-

_

_

_

10

10

16

13

11

22

12

29

518

134

74

56

48

46

52

117

52

37

36

247

78

44

34

_

-

Feb.

28

25

23

438

745

791

267

136

104

93

100

78

69

66

63

*65

62

61

63

61

61

59

58

58

59

61

62

61

_

-

3,817

136

7,570

Mar.

58

54

52

51

52

51

48

48

41

39

42

38

36

34

32

31

35

42

41

78

63

66

73

209

17l

131

108

102

93

91

95

2,108

68.0

4,180

Apr.

98

100

95

89

87

87

113

228

209

157

113

144

147

136

131

122

115

113

*104

95

91

83

80

69

65

61

58

52

49

45.

-

3,136

105

6,220

May

42

73

42

55

52

49

46

42

40

38

36

35

34

34

32

30

28

27

27

26

24

22

22

21

22

21

20

20

19

11

17

i;oi3

32.7

2,010

June

11

16

17

15

15

15

16

16

16

16

15

16

17

15

14

13

13

12

12

13

11

9.7

9.4

8.9

9.1

9.1

8.4

7.8

7.6

7.6

-

387.6

12.9

769

July

6.8

6.6

5.5

5.9

5.7

11

6.2

5.5

4.9

4.3

4.0

5.7

5.1

4.3

4.3

6.6

3.8

3.6

3.5

3.4

*2.8

3.1

2.9

1.9

1.8

1.5

1.6

1.9

1.7

1.3

179

129.1

4.16

256

Aug.

2.0

1.3

1.6

1.8

1.9

2,1

1.6

1.4

1.8

1.8

.4

.6

.3

.2

.0

.0

.2

1.0

1.0

.8

.6

.5

.4

.4

.5

.5

.5

.4

.4

.4

^3

33.7

1.09

67

Sept.

0.3

.2

.2

.1

0

0

0

*0

0

0

0

0

1.0

.9

.9

.8

1.4

1.2

1.9

2.1

1.7

1.5

1.3

1.3

1.0

.8

1.1

1.0

.8

.7

-

22.2

0.74

44

Calendar year : Max Mln Mean Ae-ft

Water year : Max Min Mean Ae-ft

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 307

Discharge, in cubic feet per second, of San Antonio Creek near San Andreas, Calif., 1950-51 Continued

1950-51

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

.6

.6

.5

.8

.7

.8

.7

.8

.8

1.1

1.1

.8

.7

.7

.6

.6

.7

.8

1.0

1.0

1.0

1.0

1.1

2.7

11

82 

19

12

17

19

181.9

5.87

361

Nov.

12

9.4

6.8

6.4

5.9

5.5

5.1

*4.7

4.7

4.7

3.6

4.3

7.3

16

15

12

56

580

532

635

479

212

147

102

76

58

46 

39

36

37

-

3,158.4

105

6,260

Dec.

36

34

566

375

299

288

846

*1.010

680

366

262

200

176

429

255

193

180

154

130

111

98

89

73

70

64

59

57 

57

54

56

57

7,324

236

14,530

Jan.

50

49

58

58

52

50

49

47

46

*56

193

139

91

73

73

82

75

306

319

204

157

274

243

204

186

163

154 

142

130

116

106

3,945

127

7,820

Feb.

79

89

82

84

2_02

148

130

122

114

106

119

136

*106

98

91

84

79

79

71

67

68

67

64

61

60

60

61 

58

_

_

-

2,585

92.3

5,130

Mar.

61

60

57

91

224

*183

170

154

142

1Z2

111

104

106

106

95

109

109

104

95

93

91

86

82

79

75

71

68 

65

64

63

60

3,100

100

6,150

Apr.

58

56

52

50

52

50

50

48

46

45

42

39

40

38

37

36

*37

36

36

35

34

34

34

33

33

33

33 

56

61

49

-

1,283

42.8

2,540

May

45

*43

43

170

104

77

65

58

54

50

49

46

44

43

40

40

37

36

34

32

32

32

29

28

27

25

23

23

22

21

1,396

45.0

2,770

June

20

20

19

18

18

*18

18

18

20

18

15

14

14

13

12

11

11

11

11

11

11

11

10

9.1

8.7

8.4

7.8

7.5

7.2

-

398.8

13.3

791

July

7.0

6.7

6.5

6.3

6.0

6.0

6.0

6.0

6.0

6.0

6.0

5.8

5.8

5.8

5.8

5.8

5.6

*5.6

5.4

5.4

5.4

5.4

5.4

5.2

5.4

5.4

5.4 

5.4

5.4

5.4

5.2

178.5

5.76

354

Aug.

4.8

379

2.4

2.4

2.4

2.7

2.7

E.4

2.5

2.4

2.3

2.4

2.3

2.3

2.4

2.1

1.7

1.4

1.3

TTs

1.3

Iv3

1.3

1.3

1.4

2.1

*1.9

1.5

1.6

1.5

65.1

2.10

129

Sept.

1.7

1.9

1.8

1.6

1.6

1.7

1.6

1.5

1.3

1.1

1.1

1.1

1.2

1.2

1.1

1.1

1.1

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

-

38.1

1.27

76

Calendar year 1950 : Max - Kin - Mean - Ac-ft -

Water year 1950-51 : Max 1,010 Min 0.5 Mean 64.8 Ac-ft 46,910

Peak discharge (base. 240 cfs). Nov. 18 (time unknown) 1,220 cfs (4.50 ft); Jan. 11 (1 p.m.) 406 

cfs (2.93 ft); Jan. 18 (6 p.m.) 610 cfs (3.36 ft): Jan. 22 (10:30 a.m.) 348 cfs (2.80 ft); Feb. 5 

(11:30 a.m.) 247 cfs (2.55 ft); Mar. 5 (5:30 p.m.) 247 cfs (2.55 ft).

* Discharge measurement made on this day.
308 SAN JOAQUIN RIVER BASIN

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 

canK 600 ft upstream from mouth and 6 miles east of Mokelumne Hill.

Drainage area. 16.6 sq mi.

Records available.--January to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,470 ft (from topographic map).

Extremes. Maximum discharge during period, 526 ofs Jan. 18 (gage height, 3.38 ft In gag 

wen, 3.74 ft from outside gage); minimum, 0.9 cfs Aug. 18 and part of each day Sept. 

13-19, 24-26.

Flood of Nov. 18, 1950, reached a stage of 6.5 ft, from floodmarks (discharge, 

2,030 ofs, from rating curve extended above 1,100 cfs on basis of slope-area determination of peak flow).

Remarks.--Records good. No storage or diversions above station.

Rating table, Jan. 13 to Sept. 30, 1951 (gage height, In feet, 

and discharge, In cubic feet per second]

0.5 

.6

.7

0.8

1.6

3.0

5.4

12

1.3 

1.6 

2.0 

2.5 

3.0

104

203

358

Discharge, In cubic feet per second, January 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.

_

_

_

-

_

_

_

-

_

39

31

33

40

37

260

T3Z

64

60

195

74

61

39

32

28

25

23

22

19

_

_

-

Feb.

18

*17

17

18

70

32

25

21

19

19

33

51

32

27

23

21

20

22

19

18

23

22

20

18

17

18

21

21

_

-

682

24.4

1,350

Mar.

22

23

20

53

224

114

*123

75

64

48

38

32

29

26

23

21

20

19

18

17

16

15

15

14

14

14

13

12

TZ

12

12

1,158

37.4

2,300

Apr.

12

11

11

11

11

10

10

10

9.6

9.2

8.9

8.5

8.5

8.2

8.2

*8.2

8.2

7.8

7.8

7.5

7.2

7.2

7.2

6.9

TT5

7.5

7.2

21

IB" 22

-

295.3

9.84

586

May

*10

8.9

17

97 25

18

14

12

10

9.2

9.6

8.5

8.2

7.8

7.2

6.9

6.9

6.6

6.3

6.0

5.7

5.7

5.4

5.4

5.4

5.1

5.1

4.8

4.8

4.6

4.5

352.4

11.4

699

June

4.3

4TT

4.1

4.1

4.1

*4.1

4.1

4.1

4.1

3.9

3.9

3.6

3.4

3.4

3.2

3.2

3.0

3.0

3.0

3.0

3.2

3.0

3.0

3.0

2.8

2.8

2.8

2.6

2.6

2.5

-

102.0

3.40

202

July

2.5

275

2.5

2.3

2.3

2.3

2.0

2.0

1.9

2.0

2.0

2.0

2.0

1.9

1.9

1.9

1.7

*1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.5

L_4

57.6

1.86

114

Aug.

1.4

175

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.2

1.1

1.1

1.1

1.1

1.0

T7TJ

1.1

1.1

1.2

1.2

1.2

1.2

1.1

1.1

1.1

*1.1

1.2

1.2

37.1

1.20

74

Sept.

1.2 rr?

1.2 1.1 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

.9

17U

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0 1.1

1.1

-

31.1

1.04

62

Calendar year : Max Mln Mean Ac -ft

Water year : Max Mln Mean Ac-ft

Peak discharge (base, 200 efs).--Jan. 18 (11:30 a.m.) 526 cfs (3.38 ft); Jan. 22 (7:30 a.m.) 404 

cfs (3.11 ft); Mar. 5 (6 a.m.) 317 cfs (2.89 ft); May 4 (1:30 a.m.) 206 cfs (2.51 ft). 

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 309

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 

Baruc 0.6 mile upstream from mouth, 1.0 mile downstream from Wet Gulch, and 3.2 miles 

southeast of Mokelumne Hill.

Drainage area. 34.5 sq mi.

Records available. January 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 980 ft (from topographic map). Prior 

ffo Dec. 22, 1950, staff gage and crest-stage indicator at same site and datum; gage 

read once daily.

Extremes.--1950: Maximum discharge during period January to September, 730 cfs Feb. 4 

(gage height, 3.94 ft); minimum observed, 0.1 cfs for many days July to September.

1950-51: Maximum discharge during water year, 4,380 cfs Nov. 18 (gage height, 7.1 

ft, from floodmarks), from rating curve extended above 1,300 cfs on basis of slopearea determination of peak flow; minimum observed, 0.1 cfs Oct. 1-13.

Remarks --Records good except those for period of no gage-height record and those prior 

fo~Dec. 22, which are fair below 100 cfs and poor above. No storage diversions above 

station.

0.4 

.5

.6

Rating tables, Jan. 5, 1950, to Sept. 30, 1951 (gage height, In feet, and

discharge, In cubic feet per second) 

(Shifting-control method used Oct. 26 to Nov. 17, 1950)

Jan. 5 to Nov. 18 Nov. 19 to Sept. 30

0.1

.3

1.0

2.7

1.5

1.9

13

27

60

121

3.0 

4.0 

5.0 

6.0

370

760

1,410

2,530

1.0

1.1

1.2

4.4

7.6

1.4 

1.7 

2.0 

2.5 

3.0

177

315

5.0 

6.0

720

1,400

2,530

Discharge, In cubic feet per second, 

1950

Day

1

2

3

4

5

6

7

8

9

10

11

12

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.

_

_

-

_

6.9

5.2

4.7

B75

15

13

19

16

13

37

16

37

316 ~6T5

54

52

48

52

139

96

27

19

19

121

60

42

27

_

_

-

Feb.

19

16

16

316

rra

316

104

66

42

37

32

27

23

19

16

*15

14

13

13

12

11

11

9.9

11

10

8.6

8.6

8.3

_

-

-

1,372.4

49.0

2,720

Mar.

8.3

7.2

7.2

7.2

8.6

7.9

7.6

7.2

7.2

7.2

13

8.6

8.3

7.9

7.6

srs- 6.9

8.6

32

32

16

32

23

139

T2T

96

60

42

33

26

23

821.0

26.5

1,630

Apr.

21

16

14

13

13

19

42

303 T9~8~

96

63

50

48

37

29

27

23

21

19

*17

16

14

13

13

12

12

11

11

9.5 ^TB"

-

1,190.0

39.7

2,360

May

14

16

TS

14

13

12

12

11

10

8.6

8.6

8.3

8.6

7.9

7.2

6.9

6.9

6.9

6.9

6.9

6.6

6.2

6.2

5.9

5.2

5.2

5.0

4.7

4.7

4.0

3.7

259.1

8.36

514

June

4.0

4.0

4.0

4.0

4.0

4.0

5.2

BTTJ

4.7

4.4

4.4

4.4

3.7

3.2

3.2

3.2

3.0

2.7

2.7

3.0

2.7

2.7

2.7

2.5

2.4

2.2

2.2

2.0

1.8

1.7

-

99.7

3.32

198

July

1.3

T7?

.9

.7

.6

.4

1.0

.6

.6

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

*.3

.2

.2

.2

.2

.2

.2

.1. ?

.1

.1

13.1

0.42

26

Aug.

~n: 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

3.1

0.10

6.1

Sept.

 0.1^Y

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2. ?

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

3.3

0.11

6.5

Calendar year : Max Mln Mean Ac-ft

Water year : Max Mln Mean Ac-ft

* Discharge measurement made on this day. 

296498 O - 53 - 21
310 SAN JOAQUIN RIVER BASIN

Discharge, in cubic feet per second, of Jesus Maria Creek near Mokelumne Hill, Calif., 

1950-51--Continued

Day

1

2

3

4

5

6

7

8 

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

~n0.1

.1.1

.1

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

2.7

3.0

23

21

19

37

37

146.8

4.74

291

Nov.

8.6

2.7

2.4

2.2

2.0

1.8

1.8

*1.8 

1.7

1.5

1.3

TTS

5.2

16

8.6

8.6

19

*£110

TT2S

798

262

72

42

26

18

15

12

11

9.8

12

-

4,000.3

133

7,930

Dec.

9.8 57^

656

321

87

124

315

1,690 

196

87

72

59

31

200

87

59

42

34

29

26

26

24

22

21

20

18

18

17

17

20

22

4^59.6

141

8,650

Jan.

17

17

22

23

19

18

17

16

IE

a35

a!50

100

62

48

49

63

57

305 '2TO

117

80

291

136

93

72

60

51

44

43

39

36

2,296

74.1

4,550

Feb.

34

32

30

3Z

107

*58

45

39 

36

36

56

86

55

47

43

39

36

39

35

33

38

38

34

32

30

31

35

35

_

-

1,191

42.5

2,360

Mar.

37

37

35

102

412

193

*179

125 

115

89

72

64

59

53

48

45

42

38

36

35

34

35

33

33

29

28

26

25

24

22

24

2,131

68.7

4,230

Apr.

23

23

22

22

22

21

21

20 

19

18

18

18

17

17

17

*16

16

17

17

16

16

15

15

15

16

15

14

2?

 55 36

576

19.2

1,140

May

*18

18

21

~TT 126

33

25

21 

20

18

19

18

17

17

16

15

15

15

14

14

13

13

12

12

12

11

11

10

9.3

 973 8.9

628.5

20.3

1,250

June

9.8

tt

9.8

9.8

9.8

*9.3

8.9

9.3 

8.5

8.0

7.6

7.6

7.2

6.8

6.5

6.5

6.2

6.2

6.2

6.2

6.2

5.5

5.2

4.9

4.7

4.7

4.7

4.7

4.7

4.4

209.7

6.99

416

July

4.4

4TT

3.9

3.9

4.1

4.4

4.1

3.9 

3.7

3.2

3.2

3.2

3.1

3.1

3.1

2.9

2.9

*2.5

2.3

2.1

2.2

2.2

2.3

2.2

2.2

2.2

2.0

2.0

1.8

1.8

1.6

90.6

2.92

180

Aug.

1.4

1.4

1.4

1.4

1.5

1.6

1.7

TTS 

1.6

1.6

1.5

1.3

1.3

1.2

T7?

1.2

1.2

1.2

1.2

1.3

1.3

1.3

1.3

1.5

1.5

1.5

1.2

1.2

*1.3

1.4

1.3

42.6

1.37

84

Sept.

1.3

ITS' 1.5

1.4

1.5

1.4

1.4

1.5 

1.4

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.0

TTO

1.0

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.4

1.5

38.0

1.27

75

Calendar year 1950: Max - Min - Mean - Ac-ft -

Water year jrear 1950-51: 1950-51: Max Max 2,110 2,110 Min Min 0.1 0.1 Mean Mean 43.0 43.0 Ac-ft Ac-ft 31,160 31,160

discharge (base, 400 cfs).--Mov. 18 (time unknown) 4,380 cfs (7.1 ft); Jan. 18 (3:30 p.m.) 

! (3.62 ft); Jan. 22 (9 a.m.) 561 cfs (3.64 ft); Mar. 5 (5:30 a.m.) 598 cfs (3.73 ft), 

icharee measurement made on this dav.

Peak

* Discharge measurement made on this day. 

a Ho gage-height record; discharge estimated on basis of partial gage-height record, range in 

stage, and records for stations on nearby streams.
SAN JOAQUIN RIVER BASIN 311

Cosgrove Creek near Valley Springs, Calif.

Location. Lat 38°09', long. 120°50', in SE£ sec. 35, T. 4 N., R. 10 E., on right bank 

0.4 mile upstream from mouth and 2.5 miles south of Valley Springs.

Drainage area. 20.6 sq mi.

Records available. October 1929 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 580 ft (from topographic map).

Average discharge. 22 years, 7.81 cfs.

Extremes. Maximum discharge during year, 2,560 cfs Jan. 18 (gage height, 7.75 ft), from 

rating curve extended above 1,400 cfs on basis of logarithmic plotting; no flow for 

several months.

1929-51: Maximum discharge, 3,180 cfs Dec. 21, 1945 (gage height, 8.38 ft), from 

rating curve extended above 1,400 cfs on basis of velocity-area studies and logarithmic 

plotting; no flow for several months during each year.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Ho storage or diversion above station.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.9

2.1

2.2 

Z.3 

2.4

2.6 

5.2

2.5

2.6 

Z.7 

2.9 

3.3

8.6 

13 

ZO 

39 

91

3.7 

4.1 

4.5 

5.0 

5.5

168

274

405

615

875

Discharge, in cubic feet per second, water year October 1950 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

2Z

Z3

Z4

25

26

27

Z8 

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

705

351

232

128

49

Z8

18

15

13

12

10 

8

6

-

1,575

52.5

3,1ZO

Dec.

5

4

500

200

75

125

500

600 Z50~

100

40

20

*15

181

53

Z8

20

15

13

10

9.4

8.6

7.9

7.5

6.8

6.5

5.9

5.9 

5.2

6.8

9.9

2,834.4

91.4

5,620

Jan.

6.2

5.0

45

23

12

8.6

7.Z

7.2

*6.5

54

Z08

59

Z8

18

37

41

28

581

119

53

38

190

59

38

28

ZO

16

13 

13

12

9.0

1,782.7

57.5

3,540

Feb.

8.2

7.5

1^2

11

119

30

17

12

10

14

131

125

*37

22

16

13

11

14

9.9

8.6

15

16

16

9.9

8.2

9.4

49

Z3

-

-

769.9

27.5

1,530

Mar.

23

26

13

113

158

64

97

41

30

*21

15

12

11

9.4

8.2

7.5

6.5

5.9

5.2

5.2

4.7

4.7

4.4

4.1

4.1

3.8

3.5

5.0 

3.0

3.3

3.0

713.5

23.0

1,4ZO

Apr.

Z.6

Z.6

2.6

2.6

2.3

Z.3

2.6

2.6

2.3

*1.9

1.6

1.4

1.4

1.4

1.0

1.2

1.2

1.0

.9

.6

.5

.5

.5

.5

.5

.6

.6

3.5

6^

2.8

-

52.1

1.74

103

May

1.6

1.4

*2.5

9.3

3.8

2.3

1.8

l.Z

.8

.6

.5

.3

.3

.3

.5

.3

.Z

.2

0*

29.1

0.94

58

June

(*)

-

0

0

0

July

0

0

0

Aug.

(*)

0

0

0

Sept.

0

0

0

Calendar year 1950 : Max 705 Mln 0 Mean 17.4 Ao-ft 12,570

Water year 1950-51 : Max 705 Mln 0 Mean 21.3 Ac-ft 15,390
312 SAM JOAQUIN RIVER BASIN

Calaveras River at Jenny Llnd, Calif.

Location (revised). Lat 38°05'20", long. 120°51'53", In NWij sec. 27, T. 3 N., R. 10 E., 

on rignt Dame vO ft below bridge on Milton road, 0.2 mile south of Jenny Llnd and 6.5 

miles downstream from Cosgrove Creek.

Drainage area. 395 sq ml.

Records available. January 1907 to September 1951.

Sage. Water-stage recorder. Altitude of gage Is 220 ft (from topographic). Prior to 

 Dec. 3, 1925, staff gage on center pier of bridge. December 1906 to October 1917, at 

datum 7.00 ft higher and October 1917 to May 1928, at datum 2.00 higher.

Average discharge. 42 years (1908-23, 1924-51), 246 cfs.

Extremes. Maximum discharge during year, 7,570 cfs Nov. 19 (gage height, 11.89 ft); -no 

now during several months.

1907-51: Maximum discharge observed, 50,000 cfs Jan. 31, 1911 (gage height, 21.0 

ft present datum), from rating curve extended above 11,000 cfs by logarithmic plotting; 

no flow during late summer of most years.

Remarks. Records good. Plow regulated by Hogan Reservoir at Stockton flood-control dam 

Beginning in 1930 (usable capacity, 75,000 acre-ft), by Blngham Reservoir (capacity, 

775 acre-ft) on North Fork Calaveras River, and by some seepage of North Pork Stanislaus River water from diversion canals and reservoirs; normally not over 1.5 cfs.

Revisions (water years). W 1011: 1907-10, 1912-28. W 1181: 1911.

Discharge, in cubic feet per second, water year October 195O 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.

O

7J

0

0

0

0 

O

O 

O

18

3.2

O 

O

0

0

O

O

O

O

0

O

0

0

0

0

0

0

14

64

52

73

224.2

7.23

445

Nov.

88

56

38

31

24

21

18

18 

17

16

15

15 

15

27

47

71

117

2,280

7.070 

6,690

6,030

3,990

2,770

1,200

429

302

245

207

178

163

-

32,188

1,073

63,840

Dec.

160

169

1,85O

4,280

3,430

2,690 

3,390

4.710 

4,570

3,350

2,500

1,230 

665

1,300

1,660

994

710

589

*513 

453

402

367

337

309

288

275

255

239

229

223

262

42,399

1,368

84,100

Jan.

248

*216

325

525

386

302 

265

245 

i£2

5?S

1,550

2,440 

1,500

769

609

792

*702

*1,760

2,890 

2,470

1,660

1,720

2,120

1,560

1,050

855

728

634

577

557

493

30,406

981

60,310

Feb.

445

*398

382

371

1,030

1,220 

764

609 

537

489

645

1,250 

955

697

589

525

473

465

469 

413

409

433

417

378

352

-as 344

473

_

-

15,961

570

31,660

Mar.

461

569

485

574

2,630

*2,810 

2,340

1,74O 

1,240

1,O40

815

692

625

585

541

509

485

457

425 

406

394

386

371

359

352

337

268

133

 9T2 9.2

9.2

22,056.6

712

43,750

Apr.

9.2

8.6

*-9T2

9.2

8.6

8.6 

9.2

9.2 

9.2

9.2

9.2

9.2

10

10

9.2

8.6

9.2

47

90 

94

92

90

84

124

124

121

116

168

TT5

21

-

1,445.6

48.2

2,870

May

2S

62

114

*90

61

59 

64

79 

79

75

75

73 

73

72

72

72

72

70

69 

67

65

65

65

64

64

65

65

75

75

81

92

2,202

71.0

4,370

June

*92"52

94

96

94

94 

105

121 

121

145

194

T5T 

191

191

188

188

186

183

183 

180

180

177

174

172

166

109

107

107

105

105

-

4,331

144

8,590

July

1O3

103

101

101

103

103

101

96 

112

*156

156

150 

148

145

140

140

138

133

128 

118

123

118

114

107

82

8.8

1.8

0

0

0

0

3,029.6

97.7

6,010

Aug.

O

0

O

44

50

49 

5544" 

*10

.7

0

0 

0

O

0

0

O

O

O 

0

0

0

12

8.5

.1

0

0

0

0

0

0

273.3

8.82

542

Sept.

0

0

0

Calendar year 1950: Max 7,070 Mln 0 Mean 369 Ac-ft 266,900

Water year 1950-51: Max 7,070 Min 0 Mean 423 Ac-ft 306,500

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 

Stockton diverting canal at Stockton, Calif.

313

37 ° S9 ' 3S". long. 121°16'30", in Campo de Los Franceses Grant, on left bank 

downstream from bridge on Sanguinetti Lane, at north edge of Stockton, San Joaquin County.

Records available. January 1944 to September 1951.

; stas? , rec°rdel' Altitude of gage Is 16 ft (from topographic map). Feb. 3,

t ^ 3 '°° ft hlghel> ' PrlOT to Aug " 2 '

Average discharge.--? years, 162 cfs,

Extremes . Maximum discharge during year, 7,950 cfs Nov. 19 (gage height 13 42 ft)- no 

flow for several months.

1944-51: Maximum discharge, that of Nov. 19, 1950; no flow for several months each

Remarks. --Records fair. Canal carries practically entire flow of Calaveras River diverting from Mormon Slough at lat 37°57'36", long. 121°12'06", and discharging into 

Calaveras River 0.2 mile below station. Mormon Slough diverts from Calaveras River at

* "^ temP eratures for the wat*r *"* "51

are

Cooper at ion. --Four discharge measurements furinished by State of California.

Rating tables, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

Oct. 1-to Nov. 19 Nov. 20 to Sept. 3O

2.18 O

4.6 522

5.0 700

7.0 1,730

9.0

11.0

13.0

3,100

5,000

7,400

2.1

2.2

2.3

2.4

2.5

2.6

2.3 

4.6

8.0

2.8 

3.0 

3.3 

3.7 

4,1 

4.5

19

38

83

177

318

544

5.0

6.0

7.0

9.0

11.0

13.1

860

1,380

1,960

3,310

5,080

7,530

Discharge, In cubic feet per second, water year October 195O 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.

0

0

0

Nov.

JL

0oO

o

0

o

0 

0

0

0

o

0

0

o

0

0

534

6,810

*7,450

37,000

a5,OOO

a3,500

a2,000

al,200

aSOO

a500

a250

a!50

alOO

-

35,294

1,176

70,000

Dec.

a9O

alOO

a2,50O

35,000

a4,OOO

33,500 

a4, 50O

a6,000 

aS,OOO

a4,000

a3,000

*al,600 

916

1,600

2,480

1,400

920

709

558

452

374

323

293

258

233

220

204

189

177

166

174

50,936

1,643

101,000

Jan.

195

172

161

385

369

262 

217

*192 

177

217

1,400

3.560 

2,170

1,040

709

970

870

1,550

3,640

2,900

2,040

1,460

2,190

1,770

1,200

*950

815

709

636

602

537

34,165

1,102

67,770

Feb.

464

400

369

355

804

1,550 

950

703 

544

452

470

1,160 

*1,140

792

517

411

341

306

302

306

258

273

*285

251

224

204

*233

323

_

_

-

14,367

513

28,500

Mar.

395

690

440

318

1,980

5,520 

2,600

1,990 

1,350

*1,050

838

650 

524

452

390

341

310

281

255

*227

214

198

1S6

172

161

148

128

74

*27

"25 24

19,758

637

39,190

Apr.

18

15

12

6.3

2.3

1.6 

,4

.1 

.1

£

O

0 

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

0

7.6-

63.4

2.11

126

May

5~1.7

0

0

o

0

o

0 

0

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

1.7

0.05

3.4

June

O

T5

0

O

o

0 

0

0 

0

0

o

0 

9.0

20

7.8

6.5

6.6

"2.4 21

4.9

1.9

0

4.4

10

13

8.0

1.5

0

0

0

-

117.0

3.90

232

July

0

U

0

0

0

0 

0

0 

0

0

o

2.2 

10

7.3

!§

14

33.5

a3.2

*g3.0

a3

33

a3.2

*g3.4

a3

a2

32

al

0

0

0

0

91.8

2.96

182

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 7,450 Mln O Mean 357 Ac-ft 258,100

Water year 1950-51: Max 7,450 Mln O Mean 424 Ac-ft 307,000

Discharge measurement made on this Say. 

a No gage-height record; discharge estimated on basis of unpublished records for Mormon Slough at 

Bellota, or Interpolated.

g Computed from once-daily staff-gage readings.
314 SAN JOAQUIN RIVER BASIN

Bear Creek near Lockeford, Calif.

Location.--Lat 38°09'15", long. 121°08'15", in NW&Ei see. 31, T. 4 N., R. 8 E. on right 

bank: 15 ft below county road bridge, 0.8 mile southeast of Lockef ord.

Drainage area. 48.4 sq mi.

Records available.--November 1930 to September 1933, October 1943 to September 1951. 

October laxe to November 1930 at site 3 miles downstream (records not equivalent).

Gage. Water-stage recorder and concrete control. Altitude of gage, 90 ft (from topographic map). From October 1926 to November 1930, water-stage recorder at site 3 miles 

downstream at different datum.

Average discharge.--11 years (1930-33, 1943-51), 6.11 cfs, median of average annual discnarges, 4.9 cfs.

Extremes. Maximum discharge during year, 1,410 cfs Jan. 18 (gage height, 12.47 ft); no 

now for several months.

1930-33, 1943-51: Maximum discharge, 2,260 cfs Feb. 2, 1945 (gage height, 14.45 ft), 

from rating curve extended above 1,900 cfs; no flow for several months each year.

Remarks.--Records good. No storage or diversion above station.

Discharge, in cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

3

0

0

0

O

0

0

0

0

0

0

0

0

0

0

O

154

307

?5S

81

26

10

6.3

4.1

3.0

2.2

1.6

1.4

1.1

835.7

27.9

1,660

Dec.

1.1

1.1

321

193

62

108

553

5l8

85

50

32

*26

21

301

86

56

38

28

23

21

17

14

12

9.6

8.9

7.8

6.9

6.3

6.0

6.0

6.3

2,625.0

84.7

5,210

Jan.

6.3

4.8

577

13

9.6

7.2

6.0

*5.4

5.1

44

339

119

58

38

36

108

44

571

586 ~ST

66

68

67

50

41

36

32

27

24

24

18

2,543.1

82.0

5,040

Feb.

14

12

9.1

9.1

104

51

27

21

18

18

33

121

^5

*22

17

14

8.6

8.1

7.1

5.3

5.3

7.6

7.1

4.9

4.2

4.5

19

21

-

_

-

627.9

22.4

1,250

Mar.

23

44

21

15

128

68

47

*35

22

16

11

9.1

8.6

7.1

6.6

5.7

4.2

3.3

2.7

2.7

2.7

2.2

2.0

2.0

2.0

2.0

1.8

.5

.4

.2

73

496.3

16.0

984

Apr.

0.6

.8

1.0

 ^1.2

.6

.6

.7

.6

.6

.3

**.!

TT

.1

.1

.1

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

9.9

0.33

20

May

0.2

.4

**.2

.4

.6

.7

75

.3

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

O

TS

.1

.1

.1

.1

.1

0

0

O

0

0

0

5.3

0.17

11

June

(**)

 0.01

-

0.30

0.01

0.6

July

0.01

(**)

0.31

0.01

0.6

Aug.

(*)

0

0

O

Sept.

(*)

-

0

O

0

Calendar year 1950: Max 553 Mln O Mean 16.6 Ao-ft 12,030

Water year 1950-51: Max 586 Mln roin 0 u Mean mean 19.6 0.3.0 Ae-ft Ac-it 14, 0.4,iou ISO

Peak discharge (base. 220 efs). Nov. 19 (l a.m.) 685 cfs (8.70 ft); Dec. 3 (9 p.m.) 662 cfs (8.55 

ft); Dec. 7 (7:30 a.m.) 834 cfs (9.65 ft); Dec. 14 (12:30 p.m.) 56O cfs (7.86 ft); Jan. 11 (4:30 p.m.) 

625 cfs (8:30 ft); Jan. 18 (7:30 p.m.) 1,410 cfs (12.47 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.
SAN JOAQUIN RIVER BASIN 315

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 

sait Springs Dam on North Fork 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 1951.

Gage. Staff gage read once daily. Datum of gage is 3,700 ft above mean sea level (levels 

= E>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 4-22, 24-28 (eleva- 

 tion, 3,958.0 ft); minimum observed, 62,600 acre-ft Nov. 17 (elevation, 3,864.6 ft). 

1931-51: Maximum contents observed. 140,000 acre-ft on several days in July 1948,

June 1949, June, July 1950, June 1951 (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 

Eegan in March 1931. Capacity, 139,000 acre-ft between elevations 3,707.25 ft (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 p. 316 ). 

Records show contents available, at 5 p.m., for use through powerhouse.

Cooperation. Record of contents, furnished by Pacific Gas & Electric Co., obtained in 

connection with a Federal Pcwer Commission project.

Contents, in thousandis of acre-feet, water year October 1950 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

Oct.

92.3

91.4

90.4

89.4

88.6

87.7

86.5

85.5

84.5

83.5

82.5

81.6

80.5

79.8

78.9

78.0

77.1

76.2

75.0

73.9

73.0

72.2

71.4

70.3

69.3

69.0

69.4

69.3

68.9

69.0

69.0

Nov.

69.1

68.5

68.3

68.9

69.3

69.5

69.1

68.8

68.3

67.3

66.6

66.0

65.2

64.5

63.8

62.9

62.6

68.8

102.3

120.4

131.9

135.7

134.2

132.2

131.2

130.8

130.4

129.8

129.5

129.5

-

Dec.

129.3

129.0

134.0

131.4

130.5

130.4

132.3

133.3

130.9

130.7

130.2

130.1

128.9

126.9

125.6

126.5

127.1

127.3

127.1

126.9

126.5

126.1

126.5

126.6

126.7

126.0

125.7

125.3

124.6

123.8

123.0

Jan.

122. 7

122. 2

121.5

120.8

120.0

119.3

118.2

117.5

116.4

115.5

114.6

113.7

112.9

112.0

111.1

110.3

109.4

108.9

108.3

107.5

106.6

107.4

108.4

108.5

108.3

108.0

107.6

107.1

106.6

105.8

104.9

Feb.

104.6

103.9

103.0

102.4

102.4

102.3

101.7

101.8

101.9

101.9

102.3

102.4

101.9

101.2

100.9

100.3

99.8

99.2

98.5

^8.3

1

9.7.8

97.5

97.5

97.1

96.7

96.3

95.7

95.0

_

_

-

Mar.

93.9

93.1

92.2

91.3

90.4

39.7

88.9

88.3

87.5

86.6

86.0

85.0

84.2

83.6

83.5

83.0

82.4

81.8

81.3

80.8

79.9

79.9

79.9

79.8

79.6

79.3

79.2

79.4

79.9

80.5

81.1

Apr.

80.8

80.9

81.0

81.1

81.4

81.8

82.5

83.3

84.3

85.5

86.7

89.8

91.8

94.3

96.7

99.7

101.0

102.3

103.4

103.5

104.3

105.5

106.5

107.0

107.5

107.7

108.1

108.6

109.5

109.9

-

May

110.1

110.3

110.1

110.3

110.6

110.9

110.9

111.0

111.5

112.7

114.7

115.8

116.2

116.5

117.1

117.3

118.7

120.8

123.5

126.9

129.6

132.. 0

133.3

134.0

134.7

136.5

137 .'5

138.5

138.6

138.7

139.0

June

139.4

139.4

139.5

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

140.0

139.8

140.0

140.0

140.0

140.0

140.0

139.9

139.8

-

July

139.8

139.5

138.8

138.5

138.0

137.3

136.5

135.8

135.0

134:2

133.3

132.5

131.7

130.8

130.0

129.2

128.9

128.8

129.0

129.1

1Z9.2

129.3

129.3

129.3

129.4

129.4

129.5

129.8

130.1

130.1

129.9

Aug.

129.6

129.1

129.3

127.8

127.2

126.6

125.7

124.7

123.9

123.2

122.2

121.2

120.1

119.1

118.0

117.4

116.5

115.5

115.0

114.5

114.1

112.6

111.5

110.5

109.6

108.9

108.2

107.5

106.8

105.7

104.6

Sept.

103.9

102.9

102.0

101.1

100.2

99.2

98.2

97.2

96.2

95.2

94.2

93.1

92.2

91.2

90.5

89.8

89.4

88.3

87.0

86.2

85.3

84.3

83.9

83.2

61.8

80.5

79.2

78.2

78.2

77.6

~

Monthly elevation and contemn, water year October 1950 to September 1951

Date

Dec. 31.... ..............

Calendar year 1950.....

Water year 1950-51. *. ..

Elevation 

(feet)

3,873.7

3,939.9

-

3,907.6

3,957.0

3,947.4

3,885.4

-

Contents 

(acre-feet)

129,500

123,000

.

95,000

81,100

77,600

-

Change in contents 

during month 

(acre-feet)

-24,400

+60,500

-6,500

+106,100

-18,100

-9,900

-13,900

+28,800

+29,100

+800

-9,900

-25,300

-27,000

-15,800
316 SAN JOAQUIN RIVER BASIN

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif.

Location. Lat 38°30', long. 120°13 I , 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 1951.

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. 20 years, 261 cfs.

Extremes. Maximum daily discharge during year, 564 cfs May 19; no flow at times.

TS31-51: Maximum dally discharge, 577 cfs June 22, 1945; no flow at times in each 

year.

Remarks.--Records excellent. Conduit conveys water of North Pork Mokelumne River from 

taiirace of Salt Springs powerhouse to forebay of Tiger Creek powerhouse, picking up 

water en route from Bear River and several small creeks.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1950 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.

535 

535

535

468

530

534

536

534

532

534

510

535

477

424

424

514

534

532

534

516

424

426

516

514

481

432

215

340

344

220

354

14,539

469

28,840

Nov.

463 

474

354

113

83

228

371

448

462

462

460

478

508

505

508

487

402

131

41

2.8

2.5

2.3

273

2.3

48

153

308

392

418

318

-

8,627.2

288

17,110

Dec.

304 

439

283

170

251

250

220

197

192

192

279

*322

322

252

302

322

308

357

378

381

386

371

238

385

252

357

381

389

398

402

385

9,665

312

19,170

Jan.

271 

398

421

421

421

421

421

433

451

444

424

424

422

422

424

424

426

351

374

377

375

294

278

278

278

277

288

302

332

350

350

11,578

373

22,960

Feb.

375 

399

399

213

299

299

288

274

269

274

202

285

328

340

340

367

379

379

379

388

399

232

400

400

399

399

400

400

_

_

-

9,505

339

18, 850

Mar.

400 

400

400

400

400

400

400

409

432

432

432

433

409

395

365

350

349

350

350

336

319

305

308

309

291

278 286"

295

295

303

325

11,156

360

22,130

Apr.

336 

351

361

361

344

325

325

326

309

277

279

296

304

89

0

0

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

4,336.2

145

8,600

May

3.8 

3.5

3.5

3.2

3.2

3.0

3.0

2.8

2^5

2.5

142

353

365

427

559

561

562

562

564

508

204

25

51

256

349

349

347

354

349

351

378

7,647.0

247

15,170

June

403 

403

403

405

405

420

416

421

421

418

418

*416

418

432

436

446

451

451

451

450

450

450

395

291

342

273

261

269

270

194

11,679

389

23, 160

July

150 

427

466

200

440

490

477

447

490

490

490

480

480

480

482

482

484

481

484

484

484

479

479

416

357

356

356

199

195

355

385

12,965

418

25,720

Aug.

464 

466

447

353

347

410

472

470

472

473

472

470

475

475

470

4,71

467

377

199

432

480

481

481

480

439

299

386

373

439

484

414

13,438

433

26,650

Sept.

436

484

490

495

423

475

500

502

499

499

*499

500

500

467

304

304

462

500

500

500

457

299

299

454

493

495

495

495

495

259

-

13, 580

453

26,940

Calendar year 1950: Max 572 Min 0 Mean 290 Ac -ft 210,300

Water year 1950-51: Max 564 Min 0 Mean 353 Ac-ft 255,300

* Discharge measurement made on this day
SAN JOAQUIN RIVER BASIN 317

North Fork Mokelumne River below Salt Springs Dam, Calif.

Location.--Lat 38°29', long. 120fl3', in SWij- 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, approximately.

Records available.--September 1926 to September 1951. Published as "above Moore Creek"

19cIt>-ctU.

Gage.--Water-stage recorder. Altitude of gage is 3,600 ft (from topographic map). Prior 

Uo August 1928, at site 100 ft upstream at same datum. Prior to Sept. 23, 1940, at 

datum 2.0 ft higher.

Average discharge.--24 years (1927-51), 447 cfs (combined flow of North Fork Mokelumne 

Kiver ana Tiger Creek powerhouse conduit).

Extremes.--Maximum discharge during year, 16,000 cfs Nov. 21 (gage height, 17.20 ft), from 

rating curve extended above 3,000 cfs on basis of computations of flow over dam and 

discharge through powerhouse; minimum not determined.

1926-51: Maximum discharge, that of Nov. 21, 1950; minimum, 0.2 cfs Mar. 31, 1931.

Remarks. Records good above 50 cfs, poor below. Flow regulated since 1931 by Salt

Springs Reservoir (see p. 315). Diversion above station through Tiger Creek powerhouse 

conduit (see preceding page).

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

a

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.

10

10

11

11

11

11

11

12

IS

12

10

12

12

11

11

11

10

10

10

10

11

1111

10

10

10

10

9.6 

9.2

10

8^8

328.6

10.6

652

Nov.

5.0

5.3

5.9

5.6

5.3

5.0

5.0

5.0

5.0

4.8

5.0

5.0

5.6

6.2

5.9

8.4

6.8

28

291

3,790

«8,220

1,800

3,160

2,450

1,460

1,010

650

*440 

301

*377

24,071.8

802

47,750

Dec.

360

128

4,200

4,850

1,510

1,600

*5,760

*8.860

3,200

1,810

*1,280

*1,030

2,480

2,230

389

104

108

296

335

332

332

140

58

98

102

282

160

198 

296

296

259

43,083

1,390

85,450

Jan.

4.5

220

276

273

270

268

268

260

234

236

258

256

253

251

248

243

243

318

307

296

296

394

407

404

404

404

385

373 

324

324

321

9,018.5

291

17,890

Feb.

296

268

266

450

367

367

338

268

259

249

4.5

324

344

329

326

296

281

281

98

4.4

4.5

4.4

208

4.4

4.4

193

256

253

6,343.6

227

12,580

Mar.

253

253

251

251

248

248

248

234

218

218

216

214

225

243

273

286

286

283

281

291

304

315

315

315

332

341

135

I"

7,097

229

14,080

Apr.

> e5

217

650

650

650

650

650

654

662

613

658

658

658

658 

338

670

-

9,111

304

18,070

May

670

662

662

*670

*609

670

670

678

678

489

534

308

310

297

134

134

70

11

IT

11

301

*780

*1,260

1,310

1,060

1,060

1,160

1,550 

1,210

1,160

414

19,543

630

38,760

June

450

445

300

303

552

445

434

337

350

376

357

*383

388

476

438

427

335

272

110

93

68

16

14

16

16

14

15

16 

15

13.

-

7,454

248

14,780

July

13

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

11

11

12

14

14

374

12.1

742

Aug.

14

14

14

13

T3

13

14

13

13

13

13

13

13

13

13

13

13

14

13

13

14

14

14

14

13

13

13

13 

13

13

13

412

13.3

817

Sept.

13

T3

13

13

12

12

12

12

12

12

*12

12

12

12

11.

11

12

12

12

11

11

11

11

11

11

11

11

11 

11

11

-

351

11.7

696

Calendar year 1950 ; Max 8,860 Mln 4.8 Mean 398 Ac-ft 287,800

Water year 1950-51 : Max 8,860 Mln - Mean 348 Ac-ft 252,300

* Discharge measurement made on this day.

e Stage-discharge relation Indefinite. Discharge estimated on basis of notes of powerhouse operation.
318 SAN JOAQUIN RIVER BASIN 

Cold Creek near Mokelumne Peak, Calif.

Location.--Lat 38°31', long. 120°13', in see. 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 1951. 

Gage.--Water-stage recorder. Altitude of gage is 6,000 ft (from topographic map). 

Average discharge.--23 years (1927-42, 1943-51), 60.3 cfs.

Extremes. Maximum discharge during year, 5,500 cfs Nov. 18 (gage height, 9.69 ft), from 

rating curve extended above 900 cfs on basis of slope-area determination of peak flow; 

minimum, 0.1 cfs on many days.

1927-51: Maximum discharge, that of Nov. 18, 1950; no flow Aug. 17 to Oct. 7, 1931, 

Sept. 26 to Oct. 12, 1948, and Sept. 18-27, 1949.

Remarks.--Records good except those for periods of ice effect or no gage-height record, 

wnich are fair. No storage or diversion above station.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Revisions (water years).--W 843: 1928(M).

Rating table, water year 1950-51, except periods of ice effect, (gage height, in feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Aug. 6 to Sept. 30)

0.2 

.3

.4 

.5

1.4 

3.5

1.0 

1.2 

1.5 

2.0 

2.5 

3.0

59

115

200

316

476

940

1,580

3,500

Discharge, in cubic feet per second, water year October 1950 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.

0.2 

.2

.2

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

1.0

1.8

2.2

5.9

13

28

4140"

137.7

4.44

273

Nov.

37 

42

92

77

45

34

24

17

20

27

24

28

28

20

40

18

131

5.080

2,410

2,970

al.OOO

a250

also

alOO

a75

a66

a60

a54

*42

70

11,031

368

21,880

Dec.

59

47

2.250

606

194

639

1,070

1,670

286

170

127

94

82

265

141

102

77

67

61

54

50

44

42

40

40

37

29

30

28

b28

bH

8,456

273

16,770

Jan.

b26 

26

26

26

26

26

b25

b25

b25

b25

b25

b40

b300

bl50

118

91

77

70

59

52

46

44

1,553

50.1

3,080

Feb.

39 

36

35

56

68

63

96

96

82

81

75

64

56

54

49

47

46

41

40

37

34

33

38

36

30

29

28

2J7

_

-

1,416

50.6

2,810

Mar.

26 

b25

b25

b25

b25

b25

b25

b25

b25

24

25

28

42

54

*62

61

62

54

67

81

93

86

88

104

109

93

91

95

~n112

63

1,798

58.0

3,570

Apr.

63 

7T

75

81

105

127

132

165

214

254

243

250

255

257

25T

252

200

160

167

176

181

176

163

149

130

93

102

158

114

88

-

4,852

162

9,620

May

81 

82

111

127

115

127

118

154

220

280

260

161

127

*109

135

209

249

250

272

271

259

224

226

222

279

260

252

191

162

133

104

5,770

186

11,440

June

86 

79

76

77

78

73

66

62

60

59

58

54

53

53

50

45

*36

29

25

28

a24

a20

a!7

a!4

all

a9

8.1

7.8

6.6

5^1

-

1,270.2

42.3

2,520

July

^4I7¥

4.3

4.0

3.7

3.5

3.4

3.3

2.8

2.7

2.5

1.9

1.3

1.2

1.1

1.1

1.0

.8

.8

.8

.7

.6

.5

.5

.5

*.4

.4

.4

.4

.4

i3.

55.2

1.78

109

Aug.

0.3 

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

TT

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

5.2

0.17

10

Sept.

0.1 

.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

.1

.1

.1

.1

-

3.0

0.10

6.0

Calendar year 1950: Max 3,080 Mln 0.1 Mean 127 Ac-ft 91,650

Water year 195O-51: Max 3,O80 Min 0.1 Mean 99.6 Ac-ft 72,090

Peak discharge (base, 500 cfs). Nov. 18 (7:3O p.m.) 5,500 cfs (9.69 ft); Dec. 3 (3 p.m.) 3.73O

cfs (8'.21 ft); Dec. 8 (6 a.m.) 3,000 cfs (7.55 ft); Dec. 22 (1O a.m.) about 60O cfs (4.80 ft).

* Discharge measurement made on this day.

a No gage-height record, discharge estimated on basis of records of nearby stream. 

b Stage-discharge relation affected by Ice
SAN JOAQUIN RIVER BASIN 319

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, on 

rignt bank 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, 102 cfs.

Extremes. Maximum discharge during.year, about 7,100 cfs Nov. 20- (gage height, 12.62 ft, 

rrom floodmarks), from rating curve extended above 1,400 cfs; minimum, 2.1 cfs Oct. 4.

1927-50: Maximum discharge, that of Nov. 20, 1950; no flow Sept. 8-30, Oct. 1-4, 

7-29, 1928.

Remarks. Records good except those below 20 efs and those for period of no gage-height 

record,, which are poor. About 6,000 acre-ft are stored each year at reservoir above 

station and usually released during late summer and early winter.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Revisions (water years).--W 843: 1928(M). W 861: Drainage area.

Plating table, water year 1950-51 (gage height, in feet, and

discharge, In cubic feet per second)

0.6 

.7

.9

1.6 

2.6 

4.1 

6.2

1.0 

1.3 

1.7 

2.0

9.1

21

45

80

2.5 

3.0 

4.0 

5.0

154

246

522

925

Discharge, in cubic feet per second, water year October 1950 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.

2.2

2^2

6.7

8.5

8.5

8.5

8.5

8.5

8.2

8.2

7.9

5.8

4.3

4.3

4.3

4.3

4.3

4.3

4.3

4.5

4.5

4.5

4.5

7

12

25

8

7

40

253.0

8.16

502

Nov.

> 20

30

60

2,500

2,500

4,000

1,200

350

220

150

110

100

90

80

*70

90

11,850

395

23,500

Dec.

90

70

2,800

700

300

700

1,200

2,500

400

*260

200

160

120

400

250

150

140

120

100

90

80

75

70

65

60

55

55

50

50

50

45

11,405

368

22,620

Jan.

4.O

35

> Cf|

200

-.

1

I 100

J

2,400

77.4

4,760

Feb.

75

140

> 110

80

55

45

_

-

-

2,435

87.0

4,830

Mar.

40

60

0

91

91

77

100

122

146

164

152

160

175

174

174

715

214

160

170

3,045

98.2

6,040

Apr.

128 T5B"

149

174

222

259

253

289

398

475

461

480

482

486 ¥6"6~

451

358

308

300

305

324

321

280

246

230

167

180

287

201

157

-

8,973

299

17,800

May

112

XJ5

152

216

193

210

186

232

356

495

502

77S

210

*181

236

3^g

427

448

466

446

424

374

367

342

382

382

362

294

236

208

154

9,367

302

18,580

June

128

rre 111

108

108

104

95

88

80

80

77

74

70

67

67

*60

51

42

36

39

36

29

22

18

15

13

12

TZ

12

12

-

1,782

59.4

3,530

July

12

12

12

12

12

12

12

11

11

11

12

12

12

12

12

11

12

11

11

11

11

12

12

12

*13

10

9.8

9T5

9.8

10

9.8

352.2

11.4

699

Aug.

9.4

9.4

9.4

9.4

8.8

9.4

8.5

9.1

9.1

8.5

8.5

8.2 875

8.2

8.5

8.5

8.2

8.2

8.5

8.5

8.5

8.8

9.1

9.8

10

10

9.4

8.8

11

TT

11

282.2

9.10

560

Sept.

10

10

12

11

11

9.8

9.8

10

9,8

*9.4

12

TZ

12

11

11

12

12

12

12

12

12

12

11

11

11

11

11

11

11

12

~

333.8

11.1

662

Calendar year 1950: Max 4,000 Min 2.2 Mean 186 Ac-ft 134,800

Water year 1950-51: Max 4,000 Min 2.2 Mean 144 Ac-ft 104,100

* Discharge measurement made on this day.

Mote. No gage-height record Oct. 21 to Mar. 15; discharge estimated on basis of 3 discharge mea 

urements, unpublished records for station at mouth, and weather records.
320 SAN JOAQUIN RIVER BASIN 

Middle Fork Mokelumne River at West Point, Calif.

Location. Lat 38°23'15", long. 120°31 I 40", in sec. 10, T. 6 N., R. 13 E., on right bank 

2W~Ft downstream from highway bridge, 1 mile south of West Point, and 3.5 miles upstream from South Fork.

Drainage area.--67.2 sq mi.

Records available. October 1911 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,500 ft (from topographic map). Prior 

£o Oct. 6, 1926, staff gage at site 1,200 ft upstream, different datum. Oct. 6, 1926, 

to Aug. 18, 1928, staff gage at same site and datum.

Average discharge.--39 years (1912-51), 55.9 cfs.

Extremes.--Maximum discharge during year, 2,820 cfs Nov. 18 (gage height, 7.70 ft), from 

rating curve extended above 1,600 cfs on basis of slope-area determination of peak 

flow; minimum, 3.4 cfs Oct. 14, 22.

1911-51: Maximum discharge, that of Nov. 18, 1950; practically no flow Aug. 23 to 

Sept. 14, 1931, and no flow during part of day Sept. 9, 10, 1934.

Remarks.--Records good except those for July 11 to Sept. 30, 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.

Rating tables, water year 1950-51 (gage height. In feet,

and discharge, In cubic feet per second) 

(Backwater corrections applied Oct. 1-5, July 10 to Sept. 3O)

Oct. 1 to Nov. 18 Nov. 19 to Sept. 30

1.0

1.1

1.2

2.5 

5.0

1.4 

1.6 

1.9 

2.3 

3.0

32

49

84

152

302

3.5 

4.0 

4.5 

5.0 

6.0

425

575

765

1,020

1,640

1.0

1.1

1.2

6.0

10

16

1.4 

1.7 

2.0

30 2.5 181

3.0 298

3.5 425

Note. Same as preceding table above 

3.5 feet.

94

Discharge, In cubic feet per second, water year October 1950 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.

10

8.8

6.4

5.6

6.6

*6.8

7.2

6.4

7.6

7.2

6.0

5.6

5.6

5.6

6.2

6.0

5.6

5.0 

5.0

5.0

4.2

IT?

5.3

7.6

14

44

93

4?

28

66

47

485.0

15.6

962

Nov.

28

20

17

12

IE

12

*12

11

10

9.6

10 9.2

14

28

24

36

63

1,560

ra.,220

1,190

980

425

274

202

160

135

116

102

93

93

-

6,677.8

223

13,250

Dec.

96

88

1,240

1,020

486

481

*811

*1,310

740

512

404

340

296

520

381

312

274

238 

210

190

173

159

155

146

138

129

124

114

108

110

104

11,409

368

22,630

Jan.

100

97

111

105

98

95

93

90

i5o" 89

119

*104

97

93

101

105

114

479 

366

228

208

'389" 566

310

272

250

236

224

205

192

173

5,809

187

11,520

Feb.

161

153

150

157

320

238

217

*210

199

196

219

233

199

181

169

159

153

155 

144

138

148

138

135

131

128

128

128

121

_

_

-

4,808

172

9,540

Mar.

121

118

111

I3T

*219

199

"258 233

210

177

165

155

157

167

173

175

169

161 

157

159

161

161

159

157

155

152

148

142

142

146

138

5,026

162

9,970

Apr.

131

129

124

119

110

110

116

113

113

114

*111

111

111

111

108

105

104

100 

95

93

90

87

85

84

84

82

80

145

135

105

-

3,205

107

6,360

May

*100

93

117

305

TST

153

135

126

121

119

128

119

114

110

102

98

95

91 

89

85

82

79

76

73

70

66

65

62

59

57

55

3,225

104

6,400

June

53

52

51

*50

49

48

47

45

45

44

43

42

41

40

39

39

38

36 

35

36

36

35

34

32

32

31

30

29

28

27

-

1,187

39.6

2,350

July

26

26

25

25

25

25

25

24

24

24

24

*24

22

20

15

19

21

22

21

22

23

25

2828"

26

23

20

18

16

18

16

700

22.6

1,390

Aug.

14

12

10

13

21

"23 25

23

24

23

22

22

20

18

17

17

20

18 

15

15

13

12

12

10

9.5

iB 9.0

9.5

*11

12

12

492.0

15.9

976

Sept.

12

TT

10

10

10

8.0

9.0

9.0

9.0

9.5

10

9.0

9.5

9.5

9.5

9.0

8.5

8.0 

7.6

7.6

7.2

7.2

~575 6.8

7.2

8.0

7.6

6.8

9.0

9.5

-

261.8

8.73

519

Calendar year 195O: Max 1,360 Min 0.6 Mean 107 Ac-ft 77,520

Water year 1950-51: Max 1,360 Min 4.2 Mean 119 Ac-ft 85,870

Peak discharge (base, 200 cfs). Nov. 18 (8-.30 p.m.) 2,820 cfs (7.70 ft); Dec. 3 (9:30 p.m.) 2,360 

cfs (7.05 ft); Dec. 8 (9 a.m.) 1,76O cfs (6.18 ft); Dec. 14 (10 a.m.) 704 cfs (4.36 ft)j Jan. 18 

(4 p.m.) 825 cfs (4.63 ft)j Jan. 22 (7 a.m.) 716 cfs (4.39 ft); Feb. 5 (6:30 a.m.) 412 cfs (3.45 ft); 

May 4 (9:3O a.m.) 381 cfs (3.33 ft).

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 321

South Fork Mokelumne River near West Point, Calif.

Location. Lat 38°22', long. 120°33', In SWij sec. 16, T. 6 N., R. 13 E., on right bank 

600 rt downstream from Sawyer Bridge, 2 miles upstream from Middle Pork, and 2.5 miles 

southwest of West Point.

Drainage area. 73.8 sq ml.

Records available. October 1933 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 2,000 ft (from topographic map).

Average discharge. 18 years, 81.6 cfs.

Extremes. Maximum discharge during year, 3,300 cfs Nov. 18 (gage height, 9.64 ft), from 

rating curve extended above 2,100 cfs on basis of slope-area determination of peak 

flow; minimum, 8.1 cfs Sept. 22.

1933-51: Maximum discharge, 3,760 cfs Feb. 2, 1945 (gage height, 9.55 ft), from 

rating curve extended above 2,600 cfs; no flow Aug. 6, 7, Aug. 12 to Sept. 26, 1934.

Remarks.--Records good except those for period of no gage-height record and backwater, 

which are fair.

Rating tables, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Backwater corrections applied Oct. 1 to Nov. 18, July 8 to Sept. 30)

Oct. 6 to Nov. 18

3.6

3.7

8.7

12

3.6 

3.8

4.0 

4.5 

5.0

8.7

17

31

78

145

5.5 249

6.0 41O

6.5 690

7.0 1,040

8.0 1,860

4.0

4.1 

4.4

Nov. 19 to Sept. 30

5.6 

6.0 

6.5 

60 7.0

110

196

315

530

830

8.0 1,670

Discharge, In cubic feet per second, water year October 1950 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.

9.

9.

9.

9.

9.

*11

11

10

9.3

37T

10

10

10

9.3

9.3

9.7

10

10

11

11

11

11

12

15

20

60

122 ~3T

25

73

49

634.8

20.5

1,260

Nov.

32

26

23

22

20

20

*18

18

18

17

19

19

25

47

36

60

72

*1,700

*1,660

1,360

1,060

489

319

232

183

148

128

115

104

107

-

8,097

270

16,060

Dec.

107

95

1,430"

1,130

562

526

*939

*1,660 STB"

588

452

376

322

596

419

347

298

265

239

217

204

183

165

156

146

136

128

123

120

128

116

13,049

421

25,880

Jan.

110

106

130

116

109

103

*99

95

93

121

188

146

120

113

123

123

130

601 TTB"

287

242

570

444

363

315

287

268

250

233

214

199

6,774

219

13,440

Feb.

186

175

165

175

555

244

233

*228

219

217

240

260

220

200

185

175

170

175

165

155

160

150

145

145

145

T*o- 140

140

_

_

-

5,287

189

10,490

Mar.

140

135

130 2TD"

*320

308

331

5ST

262

225

199

191

193

196

196

199

199

188

186

183

188

188

186

183

180

178

175

168

170

175

160

6,236

201

12,370

Apr.

153 TIB144

144

140

140

140

136

136

138

*136

132

128

124

120

116

112

107

103

100

96

93

90

88

88

88

83 153"

138

109

-

3,623

121

7,190

May

*106

102

132

371 230"

196

170

158

151

144

144

134

130

123

115

110

106

102

97

93

88

85

82

80

76

74

71

69

68

65

62

3,734

120

7,410

June

62

BT

60

*58

60

60

57

57

56

55

53

53

53

51

49

49

48

47

47

47

47

46

46

45

43

43

44

42

42

40

1,521

50.7

3,020

July

39

39

40

3?

38

37

35

34

34

32

32

*31

33

35

34

36

34

32

29

30

29

28

28

27

26

27

26

27

2525-

28

989

31.9

1,960

Aug.

28

2T

25

24

25

26

25

23

23

24

24

21

19

16

16

15

16

16

15

14

15

16

16

16

17

17

18

15

*15

16

16

599

19.3

1,190

Sept.

IB- 16

IS

14

14

14

14

14

14

13

13

13

12

12

12

10

12

12

12

12

10

lO~9.

10

11

11

10

11

13

14

-

373.

1.2

74

Calendar year 1950 : Max l,7OO Mln 6 Mean 128 Ac-ft 92,320

Water year 1950-51: Max 1,700 Mln 9.3 Mean 139 Ac-ft 101,000

Peak discharge (base, 500 efs). Nov. 18 (ll p.m.) 3,300 cfs (9.64 ft); Dec. 3 (8:30 p.m.) 2,780

cfs 13.12 ft); Dec. 8 (9 a.m.) 2,200 cfs (8.54'ft); Dec. 14 (lO a.m.) 774 cfs (6.92 ft); Jan. 18

(3 p.m.) 9Z4 cfs (7.13 ft); Jan. 22 (9 a.m.) 712 cfB (6.82 ft). \ 

* Discharge measurement made on this day. v Note. No gage-height record Feb. 11 to Mar. 5; discharge computed on basis of recorded range In

stage and records for Middle Pork Mokelumne River. Backwater from temporary dam Oct. 1 to Nov. 18,

July 9 to Sept. 30.
322 SAN JOAQUIN RIVER BASIN 

Mokelumne River near Mokelumne Hill, Calif.

Location. Lat 38°18'40", long. 120°43'10", in sec. 1, T. 5 N., R. 11 E., on downstream

 side of left pier of highway bridge, 1.2 miles northwest of Mokelumne Hill and 8 miles 

downstream from confluence of North and South Forks.

Drainage area. 538 sq mi.

Records available. November 1927 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 650 ft (from topographic map).

Average discharge.--23 years (1928-51), 907 cfs.

Extremes.--Maximum discharge during year, 33,700 cfs Dec. 3 (gage height, 18.5 ft); minimum,

 35 el's Sept. 24.

1927-51: Maximum discharge, that of Dec. 3, 1950; minimum, 14 cfs Oct. 27, 1929.

Remarks. Records excellent except those for periods of no gage-height record, which are 

good. Flow regulated by Salt Springs Reservoir beginning in 1931 (see p. 315 ), several 

smaller reservoirs, and four power plants. Diversions above station for irrigation and 

domestic use.

Rating tables, water year 1950-51 (gage height. In feet, 

and discharge, In cubic feet per second)

115

163

221

326

452

Oct. 1 to Dec.

3.2 

3.5 

4.0 

4.5

600

760

1,080

1,460

1,900

2,970

8.0 5,680

10.0 9,200

12.0 13,600

15.0 22,200

Dec. 9 to Sept. 30

2.6 

3.0 

3.5 

4.0

282

450

705

1,000

4.5

5.0 

6.0 

8.0

1,370

1,820

2,930

5,680

Note. Same as preceding 

table above 8.0 ft.

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

420

554

511

449

477

*497

578

612

543

551

582

526

567

a450

3500

a700

501

528

538

532

458

528

508

509

614

672

809 5BB"

461

697

633

16,891

545

35,500

Nov.

612

548

613

443

99

302

*465

486

582

486

562

537

566

609

673

672

757

12,300

*15,000

17,300

*20,300

*4,980

4,530

3,910

2,770

2,030

1,860

1,630

1,390

1,230

-

98,242

3,275

194,900

Dec.

1,480

1,410

13,200

15 , 100

5,040

*4,370

14,200

20,700

8,970

5,080

3,990

3,350

3,600

5,620

4,130

a2,500

a2,20C

a2,100

a2,000

a2,000

al,800

al,600

al,500

al,100

al.OOO

al,200

al,200

al,000

al,200

al.800

al,200

135,640

4,375

269,000

Jan.

al.OOO

a900

a750

al,4730~

al,300

al,300

al,100

al,200

al,000

al,800

al,200

1,500

1,290

1,220

1,240

1,330

1,350

3,280

2,800

2,060

1,630

3,870

3,760

2,860

2,440

2,330

2,120

2,020

1,990

1,820

1,840

55,700

1,797

110,500

Feb.

1,720

1,530

1,560

1,680

2,490

2,040

2,020

2,050

1,920

1,760

1,830

1,840

*1,980

1,870

1,730

1,780

1,700

1,540

1,640

1,400

1,540

1,380

1,010

1,060

1,280

1,180

1,300

1,360

_

_

-

46,190

1,650

91,620

Mar.

1,310

1,330

1,240

1,390

*1,980

,940

,850

,930

,820

,680

,580

,510

,530

,660

,780

,720

,690

,750

,670

,690

,820

,780

,770

,800

,770

* ,830

,710

,470

,370

,490

,380

51,240

1,653

101,600

Apr.

1,300

1,100

1,280

1,300

1,290

1,380

1,430

1,300

1,610

1,710

*1,750

1,730

1,730

1,670

1,430

1,360

1,880

1,830

1,610

1,730

1,680

1,630

1,700

1,510

1,510

*1,460

1,350

1,820

1,680

1,300

-

46,060

1,535

91,360

Calendar year 1950 : Max 20,700 Mln 58 Mean 1,599

May

*1,360

1,420

,440

,490

,960

,850

,770

,790

,880

,980

,270

,790

,690

,490

,560

,690

,920

,750

,740

,800

,630

,740

2,080

2,570

2,420

2,500

2,430

2,560

2,500

2,230

1,750

60,050

1,937

119,100

June

,120

,410

1,230

* ,100

,250

,280

,350

,240

,040

,080

,080

,120

,100

,100

,210

,180

,170

979

838

868

826

772

606

428

451

482

325

3BT

374

416

-

27,881

929

55,300

July

320

474

494

486

472

527

498

558

762

5BT

533

575

648

498

562

618

545

492

527

638

674

676

439

738

620

420

405

324

282

m

396

16,234

524

32,200

Ac-ft 1,158,000

Aug.

545

428

705

5B1T

356

455

585

505

530

560

505

482

525

570

617

472

486

495

348

405

' 464

450

672

575

505

326

nrr

474

*355

468

482

15,115

488

29,980

Sept.

498

595

530

535

466

525

493

500

541

560

477

638 335"

*484

331

332

432

590

558

544

506

316

311 529"

529

530

528

559

527

399

-

14,701

490

29,160

Water year 1950-51 : Max 20,700 Mln 99 Mean 1,600 Ac-ft 1,158,000

* Discharge measurement made on this day.

Note. No gage-height record Oct. 14-16, Dec. 16 to Jan. 11; discharge estimated on basis of record 

of computed inflow into Pardee Reservoir downstream from gage.
SAN JOAQUIN RIVER BASIN 323

Mokelumne River at Lancha Plana, Calif.

Location.--Lat 38°13'25", long. 120°53'20", in SW£ sec. 4, T. 4 N., R. 10 E., on left bank 

i mile east of Lancha Plana, 3 miles downstream from Pardee Dam, and 5 miles upstream 

from Camanche Creek.

Drainage area. 584 sq mi.

Records available. June 1926 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 158.95 ft above mean sea level (levels by 

 East Bay Municipal Utility District).

Average discharge . 22 years (1929-51), since start of East Bay aqueduct diversion, 836

CIS .

Extremes. --Maximum discharge during year, 26,700 cfs Nov. 21 (gage height, 20--.1 ft); mini- 

 mum, 43 cfs Mar. 31.

1926-51: Maximum discharge, that of Nov. 21, 1950; minimum, 5.5 cfs Nov. 21, 1929. 

Revisions.--The maximum discharge for the water year 1928 has been revised to 25,700 

cfs war. iib, 1928 (gage height, 19.65 ft), superseding figures published in WaterSupply Paper 671.

Remarks. Records excellent. Flow regulated by Pardee Reservoir beginning Mar. 9, 1929 

(Tofal capacity, 210,000 acre-ft), Salt Springs Reservoir beginning March 1931 (see 

p. 315 ), several smaller reservoirs, and four power plants. Of several diversions 

above station, East Bay Municipal Utility District aqueduct is largest not returned to 

river.

Rating tables, water year 1950-51 (gage height, in feet, and discharge, in 

cubic feet per second)

Oct. 1 to Dec. Dec. 9 to Sept. 30

2.0

2.1 

2.3 

2.5 

3.0 

3.5 

4.0

199

223

275

338

542

796

1,100

5.0

6.0

8.0

10.0

12.0

15.0

18.0

1,830

2,660

4,640

7,100

10,300

16,000

22,200

2.2 

2.5 

3.0 

3.5 

4.0

137

202

336

525

790

4.5 

5.0 

6.0 

8.0 

10.0

1,120

1,530

2,450

4,590

7,100

Note. Same as preceding 

ta¥Te~above 10.0 ft.

Discharge, in cubic feet per second, water year October 1950 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 

50

51

Total

Mean

Ac-ft

Oct.

297

497

479

509

514

522

*2"2~B" 200

471 

497

474

500

507

508

273

497

528 5US"

472

502

366

247

511

500

510

465

503

286

245 

486

473

13,571

438

26,920

Nov.

489

503

511

510

573

695

634

*706

706 

706

550

379

45?

536

594

711

551

756

5,660

*12,800

*22,000

*7,150

4,870

4,590

4,530

4,510

4,500

4,240

1,420 

2,450

87,269

2,909

173,100

Dec.

4,400

4,390

4,470

5,360

5,980

4,610

 11,600

18,500

11,700 

6,160

4,750

4,490

4,480

4,540

4,500

4,510

4,500

4,490

4,480

4,470

1,950

1,890

1,890

1,490

850

625

844

820 

952

1,040

135,335

4,366

268,400

Jan.

1,040

1,060

1,100

1,090

1,060

1,060

1,060

1,050

1,050 

*1,070

1,110

1,110

1,080

1,090

1,120

1,110

1,090

1,740

2,280

2,260

2,250

2,290

2,590

3,080

3,080

2,060

2,210

2,970

2,150 

2,970

2,950

53,250

1,717

105,600

Feb.

2,940

2,970

2,280

1,570

1,560

1,570

1,800

2,250

2,540 

2,540

2,530

2,570

2,300

*2, 490

2,550

2,200

1,990

1,940

1,510

1,310

1,220

1,540

1,230

1,280

994

944

920

-

-

52,459

1,874

104,100

Mar.

987

892

l!l40

1,550

1,570

1,560

*1,540

1,550 

1,760

1,980

1,9TO'

1,720

1,100

1,210

1,530

1,670

1,810

1,720

1,640

1,640

1,640

1,680

1,820

1,950

1,280

1,620

1,590

1,380 

1,120

950

46,599

1,505

92,430

Apr.

1,460

911

647

669

669

647

636

159

585

*647

957

1,570

1,360

1,570

1,230

1,490

1,720

1,500

1,470

1,380

1,110

1,250

1,580

1,580

1,310

1,090

1,580

1,950 

1, 200

-

53,677

1,123

66,800

May

1,190

*1,230

1,400

2,050

2,180

1,930

1,550

1,410

1,490 

2,150

2,370

2,250

 1,770

1,260

1,060

958

1,130"

1,450

1,840

2,610

1,620

1,550

1,590

2,240

1,940

2,050

2,640

1,940

2,060 

2; 630

1,950

55,488

1,790

110,100

June

1,180

812

1,400

678

*589

1,090

1,150

1,060

1,620 

1,150

588

639

654

761

950

1,150

1,580

884

587

485

615

646

497

284

3TJO"

300

500

300

500 

289

-

22,816

761

45,250

July

270

3T7

352

349

552

555

355

355

355 

355

355

355

*545

555

358

558

558

549

355

349

549

355

352

352

352

555

355

555

362 358"

358

10,848

350

21,520

Aug.

355

355

355

355

555

355

355

555

355 

355

355

355

555

355

558

358

362

362

562

558

558

555

355

555

355

355

358

355

*355 

355

549

11,035

356

21,890

Sept.

558

555

355

555

552

552

552

558

599

563

636

636

636

630

289

194

TTS

636

656

636

656

555

488

642

5IZ

642

516

559

537 

579

-

14,780

495

29,320

Calendar year 1950: Max 22,000 Min 50 Mean 1,369 Ac-ft 990,700

Water year 1950-51: Max 22,000 Min 139 Mean 1,472 Ac-ft 1,065,000

Discharge measurement made on this day.
324 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 

YUU rt upstream from highway bridge, 1 mile north of Clements, and 3 miles downstream 

from Murphy Creek.

Drainage area. 630 sq mi.

Records available. October 1904 to September 1951 (discontinued).

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), 1,110 cfs; 22 years (1929-51), 844 cfs. (Storage 

ana diversion By East Bay Municipal Utility District began March 1929).

Extremes.--Maximum discharge during year, 28,800 cfs Nov. 21 (gage height, 24.40 ft);

 minimum, 166 cfs Apr. 9.

1904-51: Maximum discharge, that of Nov. 21, 1950; no flow July 9, Aug. 15, 20-23, 

1924.

Remarks. Records good. Concerning regulation and diversions, see Remarks for Mokelumne 

Kiver near Lancha Plana.

Revision (water years). W 751: Drainage area. W 881: 1905-9 (yearly summaries only).

Rating tables, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Dec. 30 to Jan. 18)

2.6

3.0 

3.5 

4.0 

4.5

5.0

Oct. 1 to Dec. Dec. 9 to Sept. 30

159

246

388

548

730

940

6.0

7.0

8.0

10.0

12.0

13.0

1,400

1,900

2,400

3,490

4,840

5,750

15.0

17.0

19.0

21.0

24.0

8,400

11,600

15,500

20,000

27,700

3.0 

3.5 

4.0 

4.5 

5.0

275

435

615

835

1,080

6.0 

7.0 

8.0 

9.0 

11.0

1,600 13.0 6,110

2,150 14.0 7,080

2,730 15.0 8,400

3,330

4,590

Note. Same as preceding table above 15 ft.

Discharge, in cubic feet per second, water year October 1950 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.

317

468 

464

504

510

517

366

*171

479

481

469

491

499

377

399

520

522

464

476

483 

242

427

546 

ITO

484

482

377

232

375

467

13,444

434

26,670

Nov.

476

493

518

515

596

692

645

*700

707 

707

568

436

47T

549

603

715

577

1,030

2,370

14,500

* 26, 900 

* 10, 600

,970

,460 

,340

,320

,280

4,270

1,900

1,720

-

95,626

3,188

189,700

Dec.

4,120

4,190 

4,640

4,850

*6,500

4,720

11,100

18.200

15,700 

6,760

4,970

4,580

4,550

4,760

4,590

4,560

4,570

4,550

4,510

4,480

2,550 

2,010

1,980

1,760 

950

748

876

895

871

951

1,130

141,601

4,568

280,900

Jan.

1,100

1,060 

1,140

1,120

1,080

1,060

1,060

1,050

*1,050 

1,176

1,410

1,180

1,110

1,100

1,160

1,220

1,100

2,450

2,600

2,390

2,340 

2,480

2,540

5,170 

3,176

2,210

2,200

2,980

2,240

2,960

3,010

55,890

1,803

110,900

Feb.

3,000

5,010 

2,716

1,650

1,720

1,640

1,730

2,130

2,560 

2,570

2,610

2,750

2,590

*2,570

2,590

2,350

2,030

2,020

1,590

1,350

1,280 

1,560

1,280

1,430 

1,060

1,000

1,636

1,000

_

_

-

54,790

1,957

108,700

Mar.

1,080

1 , OOP 

1,080'

1,120

*1,700

1,660

1,640

1,590

1,610 

1,710

2,010

2,020

1,860

1,180

1,140

1,430

1,690

1,820

1,760

1,670

1,680 

1,660

1,700

1,800 

2,160

1,150

1,640

1,590

1,580

1,150

1,030

47,910

1,545

95,030

Apr.

1,400

1,150 

682

691

696

678

664

335

545

602

651

*678

1,320

1,470

1,530

1,130

1,420

1,570

1,790

1,450

1,450 

1,150

1,180

1,530 

1,400

1,290

1,220

1,240

1,890

1,420

33,985

1,133

67,410

May

1,150

1,260 

*1,340

1,910

2,150

2,000

1,610

1,290

1,470 

1,950

2,350

2,280

1,920

1,290

1,160

923 l,0"5o"

1,280

1,710

2,520

1,650 

1,480

1,480

2,140 

1,910

1,990

2,550

1,920

1,930

2,580

1,960

54,203

1,748

107,500

June

1,560

804 

1,280

919

*460

884

1,200

1,060

1,570 

1,360

587

662

658

728

825

1,130

1,520

994

795

452

616 

654

666

332 

323

329

326

335

355

525

23,667

789

46,940

July

323

329

387

377

348

350

350

350

350 

350

350

350

340

354

357

354

357

361

*354

357

357 

367

357

354 

357

357

361

361

367

357

354

10,997

555

21,810

Aug.

351

557 

561

364

364

357

354

354

*354 

354

361

357

357

351

354

354

357

361

367

3ST

354 

351

351

351 

354

361

*367

364

357

357

364

11,081

557

21,980

Sept.

357

367 

561

357

361

361

361

357

374 

516

615

619

619

611

352

298

3T5T

611

611

615

615 

530

494

623 

627

623

512

548

523

456

14,655

488

29,070

Calendar year 1950: Max 26,900 Min 60 Mean 1,411 Ao-ft 1,022,000

Water year 1950-51: Max 26,900 Min 171 Mean 1,528 Ao-ft 1,107,000

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 325

Woodbridge Canal at Woodbridge, Calif.

Location. Lat 38°09'10", long. 121 0 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 1951.

Gage. Differential water-stage recorder and gate opening recorder. Datum of gage is

 32.18 ft above mean sea level (levels by East Bay Municipal Utility District). Prior 

to Mar. 15, 1931, water-stage recorder a quarter of a mile downstream at different 

datum.

Average discharge. 25 years, 127 cfs.

Extremes.--Maximum daily discharge during year, 427 cfs June 13, 15; no flow for several 

months.

1926-51: Maximum daily discharge, 454 cfs July 4, 1947; no flow during part of 

each year.

Remarks. Records good except those for periods of indefinite head-discharge relation and

 no gage-height record, which are fair. 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 1950 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.

225

212

221

*233

256

232

216

150

168

203

216

178

177

189

180

182

*215

215

215

218

219

195

170

154

142

150

152

154

124

124

158

5,823

188

11, 550

Nov.

150

160

166

166

168

173

*142

134

117

114

100

e!50

ellO

e!27

el!4

e!40

*e69

0

0

0

0

0

0

0

0

0

0

0

0

0-

2,300

76.7

4,560

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

0

0

a275

a!60

a!45

a!25

a85

al95

*a245

300

321

 X.AQ °"

345

343

342

337

327

338

319

348

332

329

346

347

339

323

262

245

*251

-

7,673

256

15,220

May

248

258

254

244

250

257

244

224

239

263

283

271

262

281

339

330

336

*324

301

313

302

323

320

335

342

330

310

300

336

337

545

9,101

294

18,050

June

385

383

390

384

367

394

*389

388

389

384

384

416

427

422

427

426

409

420

426

404

*406

425

419

373

324

294

267

263

255

245

-

11,285

376

22,380

July

229

217 232"

244

*255

257

264

262

276

275

269

267

267

258

256

269

272

269

261

251

242

254

257

256

245

244

239

233

225

226

226

7,797

252

15,470

Aug.

220

215

240

259

269

272

268

261

266

*262

255

250

251

253

260

255

251

255

261

278

276

269

261

270

267

257

*261

267

269

270

271

8,039

259

15,950

Sept.

265

266

277

275

265

262

265

270

280

281

285

288

*286

270

251

218

204

240

255

251

243

243

231

220

224

227

226

222

208

201

-

7,499

250

14,870

Calendar year 1950: Max 450 Mln 0 Mean 202 Ac-ft 145,900

Water year 1950-51: Max 427 Mln 0 Mean 163 Ac-ft 118,000

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Mokelumne River at Woodbridge 

and near Clements.

e Head-discharge relation Indefinite.

256498 0-53-22
326 SAN JOAQUIN RIVER BASIN

Mokelume River at Woodbridge, Calif.

Location. Lat 38°09'30", long. 121°18'10", in NEir sec. 34, T. 4 N., R. 6 E., on left bank 

at Woodbridge, 0.4 mile downstream from dam and canal intake of Woodbridge Irrigation 

District.

Drainage area.--644 sq mi.

Records available. May 1924 to September 1951 (for 1924 and 1925, low-water records only).

Gage. Water-stage recorder. Datum of gage is 14.9 ft above mean sea level (levels by 

Bast Bay Municipal Utility District). Prior to Mar. 6, 1931, at sites near bridge at 

different daturas. 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.--22 years (1929-51) , since start of diversion through East Bay Municipai utility iiistrict aqueduct, 668 cfs.

Extremes.--Maximum discharge during year, 27,000 cfs Nov. 22 (gage height, 29.58 ft), from 

rating curve extended above 6,000 cfs on basis of contracted-opening determination of 

peak flow; minimum, 16 cfs Sept. 18.

1924-51: Maximum discharge, that of Nov. 22, 1950; minimum discharge, 0.9 cfs Sept. 

3, 1924.

Remarks.--Records good. Concerning regulation and diversions see Remarks for Mokelumne 

RTver near Lancha plana; between Woodbridge and Lancha Plana are many additional diversions for irrigation, including Woodbridge Canal (see p. 325 ). Records of chemical 

analyses and water temperatures for the water year 1951 are given in Water Supply Paper 

1200.

Cooperation. Eight discharge measurements furnished by Division of Water Resources, Department of Public Works, State of California.

Revisions (water years). W 751: Drainage area.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

145 

83

173

*200

220

234

283

98

38

101

188

265

283

271

254

86

*164

268

231

199

215

159

74

294

331

344 518-

331

205

134

269

6,461

208

12,820

Nov.

308 

324

341

336

371

438

*505

510

527

530

503

414

276 339~

393

*474

510

633

1,160

2,310

8,990

*19,500

6,220

*5,090

4,700

4,490

4,450

4,410

4,230

2,580

75,862

2,529

150,500

Dec.

2,380 

3,390

4,140

4,510

*4,840

5,310

5,060

9,130

19,600

7,990

5,460

4,890

4,560

4,480

4,550

4,500

4,450

4,430

4,410

4,390

4,300

3,080

2,340

2,180

1,720

1,280

1,020

1,110

1,080

1,040

1,150

132,770

4,283

263,300

Jan.

1,170 

1,160

1,180

1,200

1,170

1,120

1,100

1,090

*1,080

1,110

1,?20

1,510

1,160

1,120

1,110

1,210

1,160

1,210

2,150

2,260

2,180

2,170

2,240

2,410

2,810

*2,880

2,210

2,150

2,670

2,130

2,680

51,820

1,672

102,800

Feb.

2,820 

2,840

2,870

2,356

1,790

1,730

1,650

1,840

2,160

2,390

2,460

2,560

2,610

2,540

*2,530

2,520

2,220

2,010

1,860

1,600

1,370

1,300

1,450

1,260

1,200

1,060

1,020

*972

_

_

-

54,982

1,964

109,100

Mar.

999 

1.09TJ

1,040

1,150

*1,400

1,670

1,670

1,660

1,630

1,610

1,800

1,940

1,980

1,780

1,310

1,370

1,560

1,660

1,770

*1,730

1,680

1,670

1,680

1,710

1,830

1,830

1,520

1,610

*1,650

1,660

1,230

48,889

1,577

96,970

Apr.

1,060 

1,410

514

345

482

476

476

473

87 1C5"

240

*282

793

854

858

1,020

888

1,070

1,200

895

1,020

898

772

946

1,090

*970

913

876

1,270

*1,450

-

23,713

790

47,030

May

909 

999

1,040

1,250

1,650

1,730

1,500

1,210

1,220

1,170

1,740

1,860

1,780

1,250

856

690

7077

*910

1,080

1,420

1,810

1,110

1,100

*1,220

1,600

1,450

1,640

1,890

1,450

1,620

1,890

41,744

1,347

82,800

June

1,570 

59S

606

955

234

398

*789

674

774

1,080

494

163

177

200

228

471

594

745

287

83

*106

*167

231

52

30

27

25

24

24

23

-

11,629

388

23,070

July

23 

22

21

18 *TS

19

19

19

20

21

21

21

22

22

23

24

25

25

*25

25

24

24

24

24

24

24

24

24

23

24

24

696

22.5

1,380

Aug.

24 

24

24

24

24

24

24

*24

24

*23

23

23

23

23

23

23

23

23

23

24

24

24

24

23

23

23

*24

24

25

25

26

735

23.7

1,460

Sept.

26 

27

28

29

29

30

32

33

34

56

219

270

*286

327

284

57

18

137

300

331

319

301

255

304

585

375

*355

290

288

296

-

5,701

190

11,510

Calendar year 1950: Max 19,600 Mln 21 Mean 1,089 Ac-ft 788,200

Water year 1950-51: Max 19,600 Mln is Mean 1,247 Ac-ft 902,500

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 327

Dry Creek near Gait, Galif.

Location. Lat 38°14'48", long. 121°13'03", in NE£ sec. 32, T. 5 N., R. 7 E., on left bank 

or main channel Just downstream from county highway bridge, 2 miles downstream from 

Coyote Creek, and 4 miles east of Gait.

Drainage area. 325 sq ml.

Records available. December 1926 to September 1933, October 1944 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 65 ft (from topographic map). Dec. 1, 

T926, to Sept. 30, 1933, water-stage recorder at site 4 miles downstream at different 

datum. Oct. 1, 1944, to Sept. 30, 1945, at present site at datum 3.00 ft lower.

Average discharge.--13 years (1927-33, 1944-51), 84.7 cfs; median of yearly mean discharges, 59 el's.

Extremes. Maximum discharge during year, 10,200 cfs Jan. 19 (gage height, 13.84 ft); no 

flow for several months.

1926-33, 1944-51: Maximum discharge, 13,200 cfs Feb. 2, 1945 (gage height, 13.84 

ft, present datum); no flow 'for several months each year.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Many small diversions above station for irrigation.

Rating tables, water year 1950-51 (gage height. In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Apr. £9 to May 4)

Oct. 1 to Jan. 19 Jan. £0 to Sept. 3O

0.1 

.5 

1.0 

1.8 

3.1 

5.5

5.0

6.0

8.0

10.0

11.0

11.5

9.0 

56 

170 

305 

4EO 

530

1E.O 

IE.4 

IE.8 

13. E 

13.5

860 

1,560 

E,910 

5,350 

7,550

4.0

4.1

4.2

4.3

4.4 

4.6

.3

1.4

E.8

4.8

10

4.9

5.4

6.0

8.0

10.0

11.0

El

EZO 

380 

515

11.6 

1E.O 

IE.3 

1Z.6 

1Z.8

695

950

1,360

£,130

3,910

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

E

3

4

5

6

7

8 

9

10

11

IE

13

14

15

16

17

18

19

EO

21 

2E

23

E4

E5

Z6

E7

E8

E9

30

31

Tota]

Mean

Ac- ft

Oct.

0

0

0

Nov.

0

0

0

0

o

0

0

0 

0

0

0

0

0

0

0

0

0

Z63

6,610

5,860

*7 . 040 

Z, 7ZO

894

467

Z60

£05

165

139

1£7

1EO

-

£4,870

8E9

49,330

Dec.

al£5

allO

al,000

aS.ZOO

al, 600

al,300

a£,500

a5. 550 

3,850

1,260

730

578

*457

1,010

1,330

632

506

388

31£

£73

£48 

£34

£££

21 E

£05

194

181

167

157

151

194

30,676

990

60, 840

Jan.

16Z

141

160

£60

185

154

140

13 £ 

1E£

366

1,5EO

£,570

810

5E4

414

7£Z

5E7

1,980

7.510

1,980

1,040 

£,£80

£,580

1,150

849

710

573

470

418

*404

*36£

31, £15

1,007

61,910

Feb.

338

316

300

334

73£

738

544

414 

36£

334

480

1.560

1,010

695

550

*4£3

57Z

566

557

560

510 

556

5£7

£79

£55

£49

452

*598

_

_

-

12,915

461

£5,620

Mar.

559

515

36£

350

£,050

£.040

1,440

1,£40 

870

755

565

443

39£

*577

536

314

£98

£84

£69

£50

£51 

£13

199

187

176

166

154

146

139

138

155

15,551

495

50,450

Apr.

1£6

12£

118

114

114

11£

104

10£ 

96

93

87

82

80

79

77

75

74

73

71

69

65 

63

65

62

6£

*63

61

68

£04

*154

-

£,733

91.1

5,4£0

May

1£5

110

107

£44

££Z

138

110

95 

85

77

70

70

67

65

61

53

48

45

39

56

55

50

£7

£7

*£5

19

£1

17

17

15

*15_

£,111

68.1

4,190

June

13

15

7.£

Z.4

.7

£.0

4.6

4.8 

4.6

4.0

4.6

£.5

1.4

.4

*.2

0

0

0

0

0

0 

0

0

0

0

0

0

0

0

0

-

65.4

2.18

150

July

0

o

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 7,040 Mln 0 Mean E36 Ac-ft 170,900

Water year 1950-51: Max 7,510 Mln 0 Mean 3E9 Ac-ft £37,900

1,770 ofs (l£.48'ft); Mar. 5*(9:30 p.m.)'5,01O cfs (l£.8£ ft).

Discharge measurement made on this day.

No gage-height record; discharge estimated on basis of weather records and records for Cosumnes 

River at Michigan Bar.
328 SAN JOAQUIN RIVER BASIN

North Fork Cosumnes River at Cosumnes Mine, Calif.

Location. Lat 38°40', long. 120°32', in SWi sec. 34, T. 10 N., R. 13 E., on right bank 

0.3 mile downstream from Cosumnes Mine, 2.5 miles north of Grizzly Flat, 4.3 miles 

upstream from Steeley Fork, and 15 miles southeast of Placerville.

Drainage area. 36.9 sq mi.

Records available. October 1948 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 3,170 ft (from topographic map). Prior 

fo Aug. 12, 1949, at site 0.2 mile upstream at different datum.

Extremes.--Maximum discharge during year, 3,940 cfs Nov. 21 (gage height, 9.50 ft), from 

rating curve extended above 320 cfs on basis of slope-area determination of peak flow; 

minimum, 3.8 cfs Oct. 13.

1948-51: Maximum discharge, that of Nov. 21, 1950; minimum, 2.3 cfs Sept. 21, 22, 

1949.

Remarks.--Records good.

Rating table, water year 195O-51 (gage height. In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Aug. 25 to Sept. 30)

2.0 

2.2 22

2.5 

3.0 

3.5 

4.0

103

190

290

5.0 585

6.0 1,040

7.0 1,670

8.O 2,5OO

Discharge, In cubic feet per second, water year October 1950 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.

.2

.5

.5

.2

.3

.5

.5

.2

.2

* .0

.2

.0

.8 4~TT

.O

.2

.2

.2

.2

.2

.2

.2

.7

.3

12

31

62

2T

15

52

33

329.5

10.6

654

Nov.

20

17

18

17

14

13

12

11

10TO"

10

10

14

16

13

25

39

1,480

1,690

*2,110

2,170

716

404

286

218

175

143

126

*112

120

-

10,019

334

19,870

Dec.

109

97

1,520

1,210

631

598

913

1,410

813

540

400

318

264

428

330

276

246

218

192

173

155

139

126

116

108

101

92

87

83

83

76

11,852

382

23,510

Jan.

72

71

95

86

79

73

69

67

65

68

68

63

60

60

60

59

BT

151

126

106

118

589

52T

338

288

262

246

228

*208

190

175

4,633

149

9,190

Feb.

160

148

139

162

288

240

244

246

238

244

270

260

236

216

200

182

171

160

144

139

134

124

119

113

109

106

103

95~ 

_

-

4,990

178

9,900

Mar.

93

90

86m

98

93

101

98

97

92

90

93

105

113

119

126

129

129

134

144

158

164

167

175

182

182

180

180

190 T5B~

171

4,057

131

8,O5O

Apr.

164

158

155

155

158

164

164

162

175

190

194

198

T9T

192

186

179

169

155

144

136

129

124

119

*113

108

100

97 133"

105

105

-

4,533

151

8,990

May

103

100

117

188

171

177

173

177

192

210

236

20TT

186

167

158

153

146

141

136

131

124

116

111

103

100

95

92

86

79

73

67_

4,314

139

8,560

June

61

5T

54

51

49

47

46

44

42

40

38.

37

35

*34

33

32

30

29

27

28

28

26

25

24

23

23

23

22

21

20

-

1,049

35.0

2,080

July

20- 20

19

19

19

18

17

17

17

17

16

16

15

15

15

14

14

14

13

13

13

13

12

12

12

12

12

12

12

11rr

460

14.8

912

Aug.

11

TT

ll

10

11

10

10

10

10

10

10

9.6

9.9

9.6

9.4

9.1

9.1

9.4

9.6

9.4

8.8

8.8

9.1

9.4

9.6

9.1

8.8

8.8

8.6

&X

9.4

298.3

9.62

592

Sept.

9.4

9TT

8.8

8.8

*8.6

8.6

8.3

8.1

7.6

7.4

7.4

7.1

6.9

6.9

6.9

6.9

6.9

6.5

BTT

6.7

6.5

6.5

6.7

6.5

6.5

6.5

6.5

6.7

6.7

6.9

-

219.6

7.32

436

Calendar year 1950: Max 2,170 Mln 3.3 Mean 134 Ao-ft 96,77O

Water year 195O-S1: Max 2,170 Hln 3.8 Mean 128 Ac-ft 92,74O

Peak discharge (base, 250 efsj. Nov. 18 (8 p.m.) 3,21O cfs (8.77 ft); Nov. 21 (1:50 a.m.) 3,940 

cfs (9.50 ft); Dec. 3 (6 p.m.} 2,88O cfs (8.42 ft); Dec. 8 (7 a.m.) l,95O.cfs (7.35 ft); Dec. 14 

(12 m.) 637 cfs (5.16 ft); Jan. 22 (8 a.m.) 763 cfs (5.47 ft); Feb. 5 (6 a.m.) 368 cfs (4.34 ft); 

May 11 (3:30 a.m.) 268 cfs (3.91 ft).

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN

Camp Creek near Camino, Calif.

Location. Lat 38°41', long. 120°33', in NWij sec. 28, T. 10 N. , R. 13 E., on right bank 

'6 miles upstream from Sly Park Creek and 7.5 miles southeast of Camino.

Drainage area. 35.5 sq mi.

Records available. October 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,200 ft (from topographic map).

Extremes. Maximum discharge during year, 2,560 cfs Nov. 20 (gage height, 5.65 ft), from 

rating curve extended above 1,350 cfs on basis of slope-area determination of peak flow; 

minimum, 2.8 cfs Oct. 1, 2, 11-18.

1948-51: Maximum discharge, that of Nov. 20, 1950; minimum, 1.5 cfs Dec. 11, 1949.

Remarks. Records good.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

Oct.. 1 to Nov. 17 Nov. 18 to Dec. 3

0.9 

1.0 

1.2 

1.4 

1.6 

1.9

1.5 

1.7 

1.9 

2.1 

2.3 

2.5

51

81

118

161

214

279

2.7 

3.0 

3.5 

4.0 

4.5

356

495

780

1,100

1,500

0,

1.

1,

.6

.7

.8

.0

.1

5.3

7.3

10

18

24

Dec.

1

1

1

2

2

4 to

.3

.5

.7

.0

.3

Sept.

40

66

99

158

228

30

2

3

3

4

.5

.0

.5

.0

290

497

780

1,100

Discharge, In cubic feet per second, water year October 1950 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

Tota]

Mean

Ac- ft

Oct.

2.8

275

3.1 

3.1

3.4

4.2

3.9

3.9

3.4

*3.1

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

3.1

3.1

3.4

3.4

3.9

5.6

15

25

53

T5

13

43

29

275.6

8.89

547

Nov.

17

13

11 

11

10

9.4

9.0

8.6

8.3

7.9

7.5

775

13

20

13

19

47

990

1,170

«0,480

1,430

604

349

239

184

147

120

103

*88

93

-

7,229.2

241

14,340

Dec.

86 '75

1,120 

1,020

550

470

668

*1,090

684

470

346

274

227

347

287

240

213

189

171

151

134

123

112

103

94

87

80

76

71

71

66

9,695

313

19,230

Jan.

62

59

77 

74

66

62

59

56

55

58

59

52

51

50

BT

51

60

162

128

104

113

502

59T

308

264

*237

223

208

192

176

158

4,168

134

8,270

Feb.

145

134

126 

149

274

228

226

223

213

213

231

231

210

194

180

165

154

143

130

126

125

113

108

103

99

96

94

85 1"~

_

-

4,518

161

8,960

Mar.

85

80

 si 72

94

92

96

96

92

85

82

82

87

99

112

123

132

130

132

136

147

154

154

154

158

156

154

149

154

158

143

3,672

118

7,280

Apr.

136

130

126 

*123

125

126

126

123

126

136

138

140

T3E

138

136

134

128

119

112

104

99

94

90

87

84

79

76

1TC

96

82

3,461

115

6,860

May

82

79

92 

176

158

158

149

143

149

154

180

TS5

149

134

125

119

117

113

110

104

97

90

85

79

74

71

66

62

55

51

46

3,432

111

6,810

June

42

35

37 

36

34

33

31

30

28

26

25

24

24

»24

23

22

21

21

20

20

19

19

18

18

17

17

16

16

15

T5

-

730

24.3

1,450

July

14

14

14 

14

14

14

13

13

12

12

12

12

12

11

11

11

11

10

10

10

10

9.5

9.2

9.2

9.2

9.2

8.6

8.6

8.6

8.4

8.1

342.6

11.1

680

Aug.

8.1

T7S

7.8 

7.8

7.6

7.6

7.6

7.3

7.3

7.3

7.1

7.1

7.1

6.9

6.7

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

6.4

F7J

6.4

214.8

6.93

426

 Sept.

6.4

S74

6.3 

6.3

*6.3

6.3

6.1

5.9

5.9

5.7

5.7

5.7

5.7

5.7

5.5

5.5

5.3

573

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.3

5.7

5.7

-

170.4

5.68

338

Calendar year 1950: Max 1,480 Mln 2.4 Mean 107 Ac-ft 77,450

Water year 1950-51: Max 1,480 Mln 2.8 Mean 104 Ac-ft 75,190

Peak dischargeijbase. 240 cfs).--Nov. 20 (2 p.m.) 2,560 cfs (5.65 ft)j Dec, 3 (8:30 p.m.) 2,320 cfs 

(5.41 ftjj DecT 8 \9 a.m.) 1,450 cfs (4.45 ft); Dec. 14 (1:30 p.m.) 488 cfs (2.98 ft); Jan. 22 

(9 a.m.) 618 cfs (3.23 ft).

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN

Sly Park Creek near Pollock Pines, Calif.

Location. Lat 38 °42'., long. 120 °33' , in SE£ sec. 18, T. 10 N., R. 13 E., on right bank 

u.5 mile downstream from dam site, 2.5 miles upstream from mouth, 3.6 miles south of 

Pollock Pines, and 12 miles east of Placervllle.

Drainage area.--14.4 sq mi.

Records available. March to June 1906, October 1948 to September 1951. Published as "at 

I'arK in iaub.

Gage.--Water-stage recorder. March to June 1906., staff gage at site 2 miles upstream at 

different datum. Oct. 1, 1948, to Aug. 25, 1949, at site 0.3 mile upstream at different datum.

Extremes.--Maximum discharge during year, 1,030 cfs Dec. 3 (gage height, 6.53 ft); minimum, 0.5 cfs Oct. 21.

1906, 1948-51: Maximum discharge, that of Dec. 3, 1950; minimum recorded, 0.1 cfs 

Sept. 22, 1949.

Remarks. Records good.

Rating table, water year 195O-51 (gage height, in feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 21-28, Apr. 10-28)

1.4 6.0

1.7 

1.9 

2.2 

2.5

3.0 

4.0 

5.0 

6.0

158

330

556

853

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

0.6

.6

.6

.6

.6

.8

.8

.8

.7

.6

.6

.6

.6

.6

.6

.6

*.6

.6

.6

.6

.5 76-

.8

1.2

3.6

12

28

-ff.o

3.6

23

9.5

101.5

3.27

201

Nov.

5.2

3.8

3.0

2.6

2.4

2.3

2.0

1.9

1.8

1.7

1.7

1.7

3.6

11

7.6

IB

30

534

484

574

622 *m

127

77

48

36

28

23

20

26

2,940.3

98.0

5,830

Dec.

24

22

5BT

614

314

268

381

*633 475"

269

192

150

118

198

148

120

98

80

65

56

52

45

40

36

33

29

27

25

24

28

24

5,115

165

10,150

Jan.

23

22 3ff

33

27

24

24

23

22

25

30

26

24

23

24

24

38

237

169

119

148

443

37Z

264

201

*176

161

140

124

103

86

3,193

103

6,330

Feb.

71

62

56

74

194

148

130

116

101

105

115

127

102

88

78

70

66

62

56

54

54

52

49

48

46

45

44

401~~

_

-

2,253

80.5

4,470

Mar.

40

38

~£Z 36

88

71

98

84

91

77

74

72

88

102

112

119

IT?

116

101

96

95

90

82

76

71

66

60

56

54

54

51

2,421

78.1

4,800

Apr.

-R47

40

39

37

39

33

31

29

28

*26

26

24

24

23

23

22

22

21

21

20

20

19

TS

20

20

19

41

35

28

-

840

28.0

1,670

May

26

24

33

~BT 140

71

55

48

40

36

38

33

30

26

24

22

20

Ifr

IB

16

15

15

15

14

14

14

13

13

13

13

12

953

30.7

1,890

June

a!2

aTI

all

all

alO

alO

alO

a9

a9

a9

aS

as

aS

*7.2

7.2

6.7

6.4

6.4

6.0

6.0

6.0

6.0

5.6

5.2

4.9

4.9

4.6

4.6

4.6

4.5

222.6

7.42

442

July

4.3

475

4.3

4.3

4.1

4.1

4.1

4.1

3.8

3.8

3.6

3.4

3.4

3.4

3.2

3.2

3.0

3.0

2.9

2.7

2.7

2.7

2.7

2.6

2.6

2.6

2.4

2.4

2.3

2.1

771

100.2

3.23

199

Aug.

2.1

F7J

2.0

2.0

1.9

1.9

1.9

1.9

1.8

1.8

1.8

1.8

1.7

1.6

1.6

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.2

T7J

1.4

1.4

1.4

50.2

1.62

100

Sept.

1.4

T75

1.4

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 79"

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

1.0

1.1

1.1

31.3

1.04

62

Calendar year 1950: Max 633 Min 0.4 Mean 44.2 Ac-ft 31,970

Water year 1950-51: Max 633 IUn 0.5 Mean 49.9 Ac-ft 36,140

Peak discharge (base, 500 efs).--Nov. 18 (8:30 p.m.) 926 cfs (6.25 ft); Nov. 20 (9:30 p.m.) 889 cfs 

(6.14 ft;; Dec. 3 (9 p.m.) 1,030 cfs (6.53 ft); Dec. 8 (8:30 a.m.) 779 cfs (5.77 ft); Jan. IB (10 

a.m.) 387 cfs (4.29 ft); Jan. 22 (2:30 a.m.) 577 cfs (5.08 ft).

* Discharge measurement made on this day.

 j OLJ i v,i a {1,1.3 1 1/ f , uaii. i.c. \ t., j\j a.m. 

- Discharge measurement made on this day. 

a No gage-height record; discharge interpolated
SAN JOAQUIN RIVER BASIN 331

North Fork Cosumnes River near El Dorado, Calif.

Location. Lat 38°35'20", long. 120°50'35", in SW£ sec. 35, T. 9 N., R. 10 E., on downstream side of left abutment of county highway 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 840 ft (from topographic map). Prior 

£b 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.--33 years (1911-41, 1948-51), 203 cfs.

Extremes.--Maximum discharge during year, 10,900 cfs Nov. 18 (gage height, 12.06 ft), from 

rating curve extended above 3,600 cfs on basis of contracted-opening determination of 

peak flow; minimum, 3.5 cfs Oct. 3.

1911-41, 1948-51: Maximum discharge, that of Nov. 18, 1950; no flow during parts 

of 1924, 1926, 1931, 1933, 1934.

Remarks.--Records good except those for periods of fragmentary or no gage-height record, 

which are fair. Diversions above station for irrigation.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Jan. 22 Jan. 23 to Sept. 30

2.5

6.0

1.0

1.3 

1.6

2.0 

3.0 

4.0 

5.0 

6.0

69

160

325

640

1,240

7.0 

8.0 

10.0

2,180 

3,440 

6,8£0

0.9

1.0

1.1 

1.4

5.5 

7.8

1.7 

2.0 

3.0 

4.0

60

145

275

4.5

5.0 

6.0 

7.2

375

550

1,060

1,990

Discharge, in cubic feet per second, water year October 1950 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.

4.7

3.9

3.8 4-75"

4.7

5.6

6.0

6.7 

6.7

6.2

6.2

5.4

*5.2

4.7

4.5

4.1

3.9

4.1

4.3

4.5

4.7

4.5

5.4

6.7

8.8

55

238

TTT

53

123

156

867.8

28.0

1,720

Nov.

75

48

36

33

32

29

26

24 

24

22

21

202~!T

77

79

59

162

*4,760

f5,600

f5,670

6,020

2,590

1,600

1,080

762

588

481

409

*347

354

-

31,050

1,035

61,590

Dec.

352

298

3,550"

*4,250

2,320

2,050

3,010

4,300 

2,920

2,100

1,680

1,350

1,110

1,760

1,520

1,230

1,04O

884

775

676

600

539

490

451

415

382

355

330

313

335

338

41,723

1,346

82,760

Jan.

291

275

370

409

335

309

289

277 

267

33T

846

561

415

365

395

424

418

2,190

1,770

1,100

1,000

3,270

1,920

1,540

1,330

1,170

1,050

958

*868

785

698

26,329

849

52,220

Feb.

630

574

526

570

1,210

994

922

880 

815

844

1,070

1,350

1,020

880

780

702

648

644

554

522

550

494

452

426

411

405

435

402

_

_

-

19,710

704

39,090

Mar.

420

399

358 SOB"

1,500

1,120

1,210

922 

880

716

626

582

*586

608

617

635

648

617

604

599

617

622

6Q8

599

599

578

558

554

542

550

494

20,556

657

40,580

Apr.

460

J3F

420

411

411

408

405

393 

399

414

414

420

408

405

390

381

362

540

522

506

294

278

270

261

256

248

236

3BT

408

524

10,841

361

21,500

May

294

273

289

790 B4"S

582

538

494 

486

482

558

526

470

423

381

350

338

324

a300

a285

a275

a260

a250

a235

a220

a210

a200

a!90

a!80

a!65

alSS

11,171

360

22,160

June

also

aTJo"

a 130

123

120

116

113

110 

105

101

98

94

90

89

*85

82

79

75

72

70

73

70

67

64

61

59

58

56

53

50

-

2,653

88.4

5,260

July

50

46

46

45

44

43

41 

39

37

36

36

36

34

35

32

30

28

*26

26

24

23

23

23

21

21

21

20

20

18

m

988

31.9

1,960

Aug.

IB- 17

15

15

15

15

14

14 

14

14

13

13

12

12

12

11

11

10

9.3

9.6

9.6

9.6

9.6

9.6

9.6

9.6

9.3

8.5

8.2 375"

9.6

365.6

11.7

721

Sept.

10

11

11

11

10

9.6

8.9

8.5 

7.8

8.9

7.6

6.9

*6.6

6.2

6.2

6.2

7.1

6.2

6.0

6.2

6.0

5.5 773-

8.9

8.9

9.3

8.9

10

11

12

-

249.7

8.32

495

Calendar year 1950: Max 6,020 Min 0.5 Mean 415 Ac-ft 300,800

Water year 1950-51: Max 6,020 Min 3.8 Mean 456 Ac-ft 329,900

Peak discharge (base, 2,200 cfs). --Nov. 18 (9 p.m.) 10,900 cfs (12.06 ft); Nov. 21 (6 a.m.) 8,400

cfs (10.82 ft); Dec. 3 (10 p.m.) 7,430 cfs (10.32 ft); Dec. 8 (12 m.

(3:30 p.m.) 3,800 cfs (8.25 ft); Jan. 22 (7 a.m.) 4,350 cfs (8.60 ft

5,390 cfs (9.22 ft); Jan. 18

.

Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

station at Cosumnes Mine.

f Fragmentary gage-height record; discharge computed from partly estimated gage heights.
332 SAN JOAQUIN RIVER BASIN

Cosumnes River near Plymouth, Calif.

Location.--Lat 38°32'20", long. 120°51'45", in NW£ 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 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 580 ft (from topographic map).

Extremes.--Maximum discharge during period, 448 cfs May 29 (gage height, 5.31 ft); minimum, 18 cfs Sept. 22.

Flood of Nov. 18, 1950, reached a stage of 20.5 ft, from floodmarks (discharge, 

20,900 cfs on "basis of slope-area determination of peak flow).

Remarks. Records good. Some diversions above station for irrigation.

Rating table, May 30 to Sept. 30, 1951 (gage height, 

in feet, and discharge, in cubic feet per second)

2.6 

2.8 

3.0 

3.4 

3.8

4.1 

4.5 

5.0 

5.5

121

208

355

505

Discharge, in cubic feet per second, May 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. Mar. Apr. May

.

-

_

_

-

.

_

_

-

-

_

-

-

_

-

_

_

-

_

-

.

_

_

_

-

_

_

_

424

400

.

_

-

June

376

346

331

316

301

292

277

271

256

241

230

222

208

200

190

178

173

164

*156

150

154

146

136

130

121

118

115

109

102

97

-

6,106

204

12,110

July

96

92

90

80

86

85

82

78

75

72

71

70

69

66

64

62

60

56

54

52

50

49

49

48

46

46

45

43

42

41

40

1,967

63.5

3,900

Calendar year : Max Min Mean Ac -ft

Aug.

38

38

36

36

36

35

34

34

33

33

32

31

30

29

29

*29

28

27

26

26

26

26

26

26

26

26

25

24

24

24

26

919

29.6

1,820

Sept.

26

26

26

26

25

25

23

23

22

21

21

20

20

20

19.

19

20

20

20

20

20

19

19

21

22

21

21

21

23

25

-

654

21.8

1,300

Water year : Max Min Mean Ao-ft

Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 333

Cosumnes River at Michigan Bar, Calif.

Location.--Lat 38°30'00", long. 121°02'45", in SEir 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 190 ft (from topographic map). Prior to 

July 10, 1930, staff gage at same site and datum.

Average discharge.--44 years, cfs.

Extremes.--Maximum discharge during year 27,600 cfs Nov. 18 (gage height, 11.85 ft), from 

rating curve extended above 19,000 cfs by logarithmic plotting; minimum, 10 cfs Oct. 4.

1907-51: Maximum discharge, that of Nov. 18, 1950; no flow during parts of many 

years.

Flood in March 1907 reached a stage of 16.3 ft.

Remarks.--Records good. Numerous small diversions above station for irrigation and mining. 

Revisions (water years).--W 881: 1908-9 (published in summary only).

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.8 10

2.0 22

2.2 42

2.4 70

2.7 126

3.0 206

3.5 395

4.0 750

4.5 1,270

5.0 1,940

5.5 2,740

6.0 3,790

6.5 5,100

7.0 6,720

8.0 10,600

10.0 18,900

Discharge, in cubic feet per second, water year October 1950 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.

11

rz

1211

12

13

19

15

15

16

15

13

*13

12

12

12

11

11

11

11

12

13

14

17

21

48

399

320

155 

172

365

1,793

57.8

3,560

Nov.

206

133

103

86

81

75

70

64

58

55

51

50

5T

99

203

145

293

8,410

15,900

14,800

* 16, 700

5,750

3,100

2,080

1,590

1,260

1,030

870

*762 

725

-

74,800

2,493

148,400

Dec.

736

644

6,5575

10,800

4,60O

4,180

7,440

11,400

7,020

4,240

3,090

2,460

2,040

3,750

3,130

2,440

2,070

,810

,590

,400

,260

,140

,030

951

870

804

750

699

665 

674

795

91,328

2,946

181,100

Jan.

635

590

682

880

716

650

612

583

569

1,190

2,460

1,830

1,180

951

973

1,310

1,060

6,800

4,960

2,630

2,070

8,640

7,300

3,700

2,870

2,540

2,230

2,020

1,880 

1,740

1,530

67,781

2,186

134,400

Feb.

,390

,270

,190

,200

,420

,170

,880

,830

,720

,660

,080

,150

2,340

,970

,760

* ,550

,420

,420

,290

,180

,200

,200

,120

,O3O

973

962

,050'

,100

-

-

43,565

1,556

86,410

Mar.

1,070

1,140

1,020

1,090

3,550

2,930

3,260

2,510

2,260

2,010

1,650

1,470

1,380

1,350

1,340

1,370

1,400

1,370

1,330

1,310

1,290

1,320

1,310

1,270

1,260

1,240

1,200

1,150

1,130 

1,150

1,O8O

48,010

1,549

95,230

Apr.

1,020

962

930

900

900

890

880

890

850

880

890

890

870

860

850

822

804

759

716

674

650

620

590

569

555

548

520 B7H"

 

1,040 755"

-

23,752

792

47,110

May

650

60S

612

1,490

1,520

1,230

1,150

1,070

1,030

1,020

1,080

1,070

973

890

813

750

716

682

665

635

605

576

555

514

481

455

437

413

395 

365

345

23,792

767

47,190

June

326

308

290

*283

272

262

255

248

241

232

222

212

203

197

188

176

171

168

160

155

153

153

148

143

136

131

126

122

116 

109

-

5,906

197

11,710

July

103 ~9T

96

94

96

94

92

86

86

83

80

78

78

75

72

70

68

64

*60

56

54

52

52

51

51

50

47

46

45 

43

4T

2,168

69.9

4,300

Aug.

4039-

38

34

35

36

35

34

34

33

32

32

30

29

27

27

26

25

25

24

23

23

25

24

24

24

24

23

22 

2T

22

891

28.7

1,767

Sept.

24

24

24

25

5T

23

22

22

21

21

20

19

18

18

18

17

IT

17

19

18

18

19

17

19

20

22

22

20

20 

22

-

610

20.3

1,210

Calendar year 1950: Max 16,700 Min 3.6 Mean 909 Ac-ft 658, OOO

Water year 1950-51: Max 16,700 Min 11 Mean 1,O53 Ac-ft 762,400

Peak discharge (base, 2,000 cfs). Nov. 18 (11 p._., _.,_.. .__ ,__.__ _ 

22,500 cfB (loTeO ft); Dec. 4 (12 m.) 18,900 cfs (10.00 ft); Dec. 8 (l p.n

, Nov. 21 (8 a.m.) 

15,800 cfs (9.25 ft);

Dec. 14 (5 p.m.) 5,100 cfs (6.50 ft); Jan. 11 (4 p.m.) 3,700 cfs (5.96 ft); Jan. 18 (5:30 p.m.) 

14,400 cfs (8.92 ft); Jan. 22 (9:30 a.m.) 12,400 cfs (8.46 ft); Feb. 5 (3 p.m.) 3,19O cfs (5.73 ft); 

Feb. 12 (8:30 a.m.) 4,080 cfs (6.12 ft); Mar. 5 (3 p.m.) 4,030 cfs (6.10 ft). 

* Discharge measurement made on this day.
SAN JOAQUIN RIVER BASIN 

Cosumnes River at McConnell, Calif.

Location. Lat 38°21'29", long. 121°20'34", in Omochumnes Grant 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 1951 in reports of Geological Survey. 1931- 

4U, 1941-42 (gage heights only during high-water periods) and 1942-51 in reports of 

Division of Water Resources, Department of Public Works, State of California.

Gage.--Water-stage recorder. Datura of gage is set to datura of Corps of Engineers.

Extremes. Maximum discharge during year, 21,900 cfs Nov. 21 (gage height, 44.89 ft); no 

flow during several months.

1943-51: Maximum discharge, that of Nov. 21, 1950; no flow during parts of each 

year.

1931-40, 1941-42: Maximum stage recorded,45.94 ft Feb. 23, 24, 1936.

Remarks.--Records good except those for periods of doubtful gage-height record, which are 

fair. Diversions above station for irrigation.

Cooperation.--Nine discharge measurements furnished by Division of Water Resources, Department of Public Works, State of California.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

5-29)

Oct. 1 to Nov. 21

(Shifting-control method used Sept. 25-

Nov. 22 to Sept. 30

31.0

31.1

31.2

31.3

31.5

31.7

0

2.0

6.0

12

30

53

32.0

32.5

33.0

34.0

35.0

36.0

94

179

286

590

1,040

1,600

38.0

40.0

42.0

44.0

44.9

3,180

5,540

9,220

14,800

22,000

29.8

29.9

30.0

30.1

30.2

30.4

30.6

30.8

31.0

31.3

31.6

32.0

32.5

33.0

34

55

93

138

210

320

460

34.0

35.0

37.0

39 .0

41.0

43.0

44.0

840

1,360

2,700

4,610

7,330

11,700

14,800

Discharge, in cubic feet per second, water year October 1950 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.

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

69

432

2T7

139

288

1,155

37.3

2,290

Nov.

281

166

119

97

81

73

*67

60

51

47

42

38

36

3?

117

160

146

1,030

9,680

14,000

*20,900 

14,000

6,150

3,040

1,990

1,520

1,200

995

834 

732

-

77,691

2,590

154,100

Dec.

728

650

1,850

12,600 

10,900

5,270

7,100

10,100

13,100

7,470

4,450

3,060

*2,380

2,900

5,380

3,370

2,420

2,050

1,780

1,550

1,360 

1,210

1,070

950

867

790

722

670

619 

587

m

108,671

3,506

215,500

Jan.

616

544

544

808 

710

601

544

514

495

577

2,680

3,510

1,600

1,110

945

1,800

1,320

2,270

8,880

5,410

2,680 

5,060

9,900

5,540

3,750

2,980

2,560

2,280

2,050 

*1,920

*1,680

76,178

2,457

151,100

Feb.

1,510

1,380

1,280

1,230 

2,550

3,040

2,180

2,000

1,900

1,790

2,150

3,540

2,920

2,260

1,960

1,740

1,570

1,580

1,420

1,280

1,290 

1,320

*1,210

1,100

1,010

995

1,210"

1,340

-

-

48,755

1,741

96,700

Mar.

1,160

1,320

1,120

1,050 

3,330

4,300

4,160

3,910

2,750

2,510

1,960

1,720

1,600

*1,570

1,540

1,550

1,560

1,530

1,460

1,430

1,430 

1,450

1,430

1,380

1,350

1,330

1,290

1,230

1,190 

1,220

1,180

56,010

1,807

111,100

Apr.

1,070

1,020

990

960 

950

935

930

915

895

915

950

940

935

905

876

849

826

782

726

686

650 

612

587

565

541

534

518

524

1,090 

*S80

24,556

819

48,710

May

690

642

612

1,360 

1,990

,450

,330

,210

,150

,130

,160

,240

1,100

995

890

818

759

734

702

670

630 

601

565

*534

508

479

457

433

403 

372

351

 25,965

838

51,500

June

330

30T

285

274 

256

245

241

222

224

212

192

179

180

180

*168

159

152

149

*141

133

124 

128

119

114

112

106

103

106

101 

94_

5,330

178

10,570

July

90

92

93

97

87

83

74

65

65

57

55

52

44

41

37

31

30

30

*31

33

33 

33

*35

34

34

29

24

18

18 

21

11

1,478

47.7

2,930

Aug.

14

11

11

11 

9

7

4

1

*.l

TT

.1

.1

17

70T5-

12

9

6

5

4

3 

2

1

*.9

.9

.9

.9

.9

.9 

.9

.9

219.6

7.08

436

Sept.

1

2

2

3 

3

4

4

5

5

6

6

7

7.7

*7.9

7.9

7.1

7.1

6.8

5.0

4.2

5.7 

4.8

.9

0

*2M

9.6

~E-.O 11

1.2 

0

-

143.0

4.77

284

Calendar year 1350: Max 20,900 Min 0 Mean 998 Ac-ft 722,400

Water year 1950-51: Max 20,900 Min 0 Mean 1,170 Ac-ft 845,200

i<;, picu.-. ( V.LVJOU p.m.; <t,:7£u UIB io».£O It;. 

* Discharge measurement made on this day. 

Note. Doubtful gage-height record Aug. 5-12, Aug. 

3 discharge measurements and interpolation.

ig. 15 to Sept. 12; discharge estimated on basis of
GOOSE LAKE BASIN 335

Drew Creek near Lakeview, Oreg.

Location. La t 42 "07', long. 120°35', in NW-j sec. 10 or Sw£ sec. 3, T. 40 S., R. 18 E., 

on downstream side of left abutment of highway bridge 1-J miles downstream from Willow 

Creek, 2 miles downstream from Drew Creek Dam, and 13 miles southwest of Lakeview.

Drainage area. 211 sq mi.

Records available. January 1909 to September 1921 and October 1925 to September 1951 in 

reports or ueoiogical Survey. January 1909 to September 1941 in reports of State engineer.

Gage.--Water-stage recorder. Datum of gage is 4,835.1 ft above mean sea level, surveys by 

Bureau of Reclamation. Prior to May 31, 1909, inclined 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 300 ft above old bridge. Oct. 27, 1941, to June 21, 1942, 

staff gage at present site and datum.

Average discharge. 25 years (1909-30, 1937-38, 1939-41, 1946-47), 64.3 cfs, including diversion oy worth Drew Canal.

Extremes. Maximum discharge during year, 522 cfs Apr. 5 (gage height, 4.64 ft); minimum, 

i.y cfs Oct. 4.

1909-51: Maximum discharge, 3,000 cfs Mar. 1, 2, 1910, from rating curve extended 

above 1,200 cfs; no flow at times.

Remarks.--Records poor prior to April, good thereafter. Plow regulated by .Drew Creek Reservoir (capacity, 62,500 acre-ft) 2 miles above station. Diversions for irrigation of 

about 3,100 acres above station; since March 1914 North Drew Canal has diverted water 

from reservoir for irrigation of lands west of Lakeview.

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

a7.0

aSTO"

a3.0

**1.9 '2T5'

2.5

2.5

3.0

3.2

3.0

3.0

2.8

3.0

3.2

3.5

3.5

4.2

4.0

4.0

3.8

4.0

3.8

3.8

4.0

4.2

4.5

4.5

4.5

4.5

5,3

4.2

115.9

3.74

230

_

37,600

Nov.

4.0

375

3.8

3.5

3.2

2.8

2.8

2.8

2.5

2.3

*2.3

2.3

2.3

2.3

2.1

2.3

2.5

4.0

3.0

2.5

2.5

2.3

2.1

2.1

2.1

2.1

2.3

2.3

2.5

2.8

-

80.2

2.67

159

40,500

Dec.

'275" 2.5

2.5

4.8

4.8

28

22

16

15

12

12

12

13

 5TT 32

*12

11

10

10

9.6

9.2

9.2

8.8

8.8

8.8

8.8

8.8

8.8

9.2

9.2

8.0

349.3

11.3

693

_

44,400

Jan.

7.

1 !?

7.7

8.0

**6.8

6.8

 BTZ 5.9

6.8

6.5

.1

.1

.1

.4

.1

27

49

51

53

57

51

a50

a50

a50

592.9

19.1

1,180

_

48,300

Feb.

a50 a30"

a50

a50

a50

a50

a50

a50

a50

a50

a50

a50

alOO

*144

144

140

140

139

139

138

137

137

150

162

TEC

159

157

157

_

-

-

2,903

104

5,760

59,500

Mar.

156

156

a!50

al50

a!50

alSO

a!50

alSO

alSO

alSO

147

T4T

151

160

174

159

154

156

159

166

168

162

162

163

164

163

166

178

220

271

«277

5,179

167

10,270

63,890

Apr.

281

289

323

428

513

519

5IS

510

505

492

480

*468

458

442

428

408

390

377

365

343

325

263

174

145

96

40 £?

62

77

82

-

9,842

328

19,520

e298

63,200

May

88

87

89

99

109

156

198

208

*208

203

208

210

225

228 '5TS

208

196

183

157

146

133

123

116

106

*95

86

82

70

66

7T

79

4,454

144

8,830

1,550

63,100

June

75

78

71

72

69

74

73

73

72

68

71

71

70

70

68

71

64

57

57

57

*64

64

60

58

58

53

50

49

48 TO

-

1,936

64.5

3,840

4,920

52,400

July

48 50"

50

49

48

52

52

53

59

64

66

76

*84

84

84

84

84

83

83

83

85 SB80

74

68

67

65

64

64

64

65

2,117

68.3

4,200

5,000

41,200

Aug.

 ss 72

67

65

63

61

54

53

*53

51

46

43

32

24

24

24

24

24

24

20

*17

2Z

22

22

24

24

24

23

24

22

22

1,138

36.7

2,260

3,250

33,600

Sept.

19

16

16

16

*17

17

17

16

16

16

18

20

24

24

24

26

30- 31

29

29

29

28

22

12

11

12

13

14

16

17

-

595

19.8

1,180

1,520

30, 780

Calendar year 1950: Max 198 Min 1.9 Mean 42.7 Cfsm - In. - Ac-ft 30,930

Water. year 1950-51: Max 519 Min 1.9 Mean 80.3 Cfsm - In. - Ac-ft 58,120

* Discharge measurement made on this day.

** Field estimate made on this day.

t North Drew Canal (diversion in acre-ft).

t Contents of Drew Creek Reservoir in acre-ft, interpolated at end of month from occasional staffgage readings.

a No gage-height record; discharge estimated on basis of records for Cottonwood Creek near Lakeview 

and changes of release from Drew Creek Reservoir.

e Apr. 22-30 only, no record Oct. 1 to Apr. 21; probably little or no flow.
dd ° GOOSE LAKE BASIN

Cottonwood Creek near Lakeview, Oreg.

Location.--Lat 42°14', long. 120°30', in SW^ sec. 29, T. 38 S., R. 19 E., on right bank 

bUU rt downstream from Cottonwood Creek Reservoir and 10 miles northwest of Lakeview.

Drainage area.--30 sq mi, approximately.

Records available. November 1908 to September 1919 and October 1925 to September 1951 in 

reports of tieological Survey. November 1908 to September 1919 and October 1924 to 

September 1941 in reports of State engineer.

tege.--Water-stage recorder. Datun of gage is 5,006.93 ft above mean sea level (levels 

By Bureau of Reclamation).

Prior to June 1, 1919, and Apr. 13, 1924, to June 3, 1932, staff gage at several 

sites and different daturns. June 1 to Sept. 30, 1919, water-stage recorder at different site and datum.

Average discharge.--30 years (1909-19, 1924-35, 1938-42, 1946-51), 19.6 ofs.

Extremes. Maximum discharge during year. 178 cfs Apr. 18 (gage height, 3.86 ft); minimum,

 U.4 cfs Nov. 15 (gage height, 1.15 ft).

1908-19, 1924-51: Maximum discharge, between 500 and 1,000 ofs 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 below 2 cfs and those for periods of ice effect or no 

gage-height record, which are poor. Since 1923 flow regulated by Cottonwood Creek Reservoir (capacity, 4,160 acre-ft), 600 ft above station. Diversions for irrigation of 

about 270 acres above station.

Rating table, water year 1950-51, except period of Ice effect 

(gage height, In feet, and discharge, In cubic feet per second)

0.7 

2.0

6.4

2.0 

2.2 

2.4 

2.7

3.0 

3.5 

3.9

63

119

185

41

Discharge, In cubic feet per second, water year October 1950 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

(t)

Oct.

1.9

1.8

1.8

2.3

3.4

4.0

3.3

2.8

2.6

2.6

2.6

2.6

2.6

2.5

2.5

2.6

3.7

5.7

4.2

4.0

3.4

3.1

3.1

3.2

5.1

a8

a!2

a!5

a!7

T5

14

157.4

5.08

312

0

Nov.

12

12

13

13

8.6

2.7 '2T8"

2.9

2.8

2.7

*2.7

2.7

2.7

23

6.3

3.1

6.4

20

19

20

31

ITT

13

11

11

10

10

1111

17

-

322.4

10.7

639

0

Dec.

14

10

7.4

17

22

28

61

69

61

52

46

a60

a5O

a60

aTO

a50

a40

a35

a30

a25

23

17

16

12

10

9.8

10

12

12

12

blO

951.2

30.7

1,890

0

Jan.

bll

bTT

blO

b9

b9

b9

b9

blO

bll

blO

b9

b8

b9

blO

b9

b8

blO

b9

b8

b8

b9

blO

blO

b9

b8

blO

b9

b7

b6b6"

b7

278

9.0

551

0

Feb.

b8

blO

bll

b!3

b!5

b!8

22

27

36

42

483"2"

4.3

4.3

4.3

4.3

4.3

4.3

4.2

4.0

18

28

27

27

26

26

26

26

-

-

520.0

18.6

1,030

el, 200

Mar.

26

26

26

26

26

26

26

26

26

26

26

26

18

4.0

4.2

4.2

4.2

4.2

4.3

4.4

4.5

4.5

4.4

4.4

4.4

4.4

9.4

14

14

*14

463.5

15.0

919

3,010

Apr.

T4~ 14

14

14

17

22

28

51

70

73

94

111

122

122

124

124

137

171

174

TBT

115

89

89

90

90

*56

27

27

28

102

-

2,366

78.9

4,690

4,600

May

152 To"9~

91

90

75

39 55

106

100

86

103

126

131

86

54

*54

57

57

57

57

57

57

57

57

56

56

56

56

56

56

55

2,335

75.3

4,630

e4,340

June

55

68

77

76

69

61

61

62

63

63

59

49

49

49

50

61

61

54

64

63

*63

63

62

61

52

47

35

23 3S

30

-

1,680

56.0

3,330

el, 750

July

26

18

17

17

17

17

17

17

16

TS

16

16

16

30

40

40

40

40

41 36-

31

31

31

31

*30

30

30

30

26

20

20

803

25.9

1,590

e520

Aug.

20

19

18

12

12

9.0

5.8

4.6

*3.4

8.9

18

18

21

26 26-

23

20

17

10

4.4

2.8

2.3

2.3

2.2

2.0

1.9

1.9

1.9

2.6

3.3

3.0

322.3

10.4

639

0

Sept.

2.6 275"

2.3

2.2

2.2

2.2

*2.2

2.0

1.9

1.9

1.6

1.4

1.4

1.4

1.3

1.3

1.3

1.2

T7Z

1.2

1.2

1.2

1.2

1.2

1.3

1.4

1.5

1.6

1.6

1.9

-

49.4

1.65

98

0

Calendar year 1950: Max 126 Mln l.O Mean 21.4 Ac-ft 15,520

Water year 1950-51: Max 174 Mln 1.2- Mean 28.1 Ac-ft 20,320

* - Discharge scargemeasurement measurement made on this day.

t Month-end contents of Cottonwood Creek Reservoir in acre-ft.

a No gage-height record; discharge estimated on basis of weather record, records for Drew Creek 

near Lakeview, and unpublished records for Thomas Creek near Lakeview. 

b Stae-dischare relation affected b Ice.

,

b Stage-discharge relation affected by Ice. 

e Reservoir gage not read at end of month; contents Interpolated.
SACRAMENTO RIVER BASIN 337

Sacramento River at Delta, Calif.

Location Lat 40°56'20", long. 122°24'55", in NW£ sec. 35, T. 36 N. , R. 5 W. , on left 

came 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 1951.

Gage. Water-stage recorder. Datum of gage is 1,075.00 ft above mean sea level (levels by 

Bureau of Reclamation).

Average discharge. 6 years (1945-51), 953 cfs.

Extremes.--Maximum discharge during year, 30,600 cfs Oct. 29 (gage height, 16.61 ft), from 

rating curve extended above 15,000 cfs on basis of logarithmic plotting; minimum, 172 

cfs Oct. 1.

1944-51: Maximum discharge, that of Oct. 29, 1950; minimum, 141 cfs Sept. 3, 4, 5, 

1950.

Remarks.--Records excellent. Small diversions above station for irrigation.

Rating tables, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Oct. 29 Oct. 30 to Sept. 30

3.8 

4.2 

4.6 

5.0

165

280

430

630

5.5 

6.0 

7.0 

8.0

950

1,330

2,350

3,660

10.0

12.0

14.0

7,470

12,800

19,600

3.8 

4.2 

4.6 

5.0 

5.5

155

260

408

600

905

6.0 1,26O

7.0 2,270

8.0 3,620

10.0 7,470

12.0 12,800

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

Total

Mean

Ac- ft

Oct.

174 ITSIS!

242

508

280

221

204

195 

191

188

188

186

185

181

202

561

418

280

*245

250

218

215

264

1,820

2,970

2,900

10,400

19.200

16,160

3,820

56,939

1,837

112,900

Nov.

2,530

1,930

1,650

1,470

1,520

1,140

1,050

958

860 

794

751

715

691

679

1.T55

5,410

3,646

2,430

1,980

1,950

,920

,660

,470

,380

,550

,290

,720

,510

,520

,450

-

47,518

1,584

94,250

Dec.

1,440

1,520

1,940

2,550

2,210

2,480

3,370

4,360

6.150 

4,626

4,550

5,866

3,156

4,656

4,866

3,870

5,110

2,610

2,360

2,110

1,870

1,700

1,570

1,460

1,370

1,280

1,200

1,140

1,100

1,070

1.020

79,970

2,580

158,600

Jan.

970

964

950

964

924

860

854

827

820 

1,555

1,520

1,260

1,100

1,030

1,190

1,260

2,520

5,520

2,150

1,640

1,560

1,450

1,460

1,640

1,820

*1,950

2,050

1,860

1,660

1,460

1,560

44,113

1,425

87 , 500

Feb.

1,260

1,240

1,400

4,220

5,440

3,910

4,280

4,460

5,820 

4,460

6,090

4,87"6

5,820

5,160

2,760

2,450

2,260

2,040

1,850

1,750

1,630

1,550

1,460

1,360

1,310

1,260

1,190

1,170

_

-

-

76,450

2,750

151,600

Mar.

1,120

1,080

1,050

1,050

1,050

1,100

1,150

1,240

1,710 

1,400

1,350

1,200

1,240

1,360

1,430

1,470

1,370

1,510

1,290

1,360

*1,510

1,560

1,460

1,420

1,460

1,450

1,400

1,570

1,570

1,540

1,270

40,900

1,519

81,120

Apr.

1,210

1,200

1,290

1,430

1,580

1,640

1,670

1,710

1,760 

1,910

1,800

1,720

1,740

1,780

1,720

1,670'

*1,680

1,550

1,430

1,550

1,240

1,170

1,140

1,120

1,050

998

1,515

1,650

1,210

1,050

-

45,598

1,447

86,080

May

998

991

1,790

5.260

3,666

2,360

1,080

1,890

1,880 

1,970

2,110

1,750

1,550

1,390

1,550

1,560

1,400

1,400

1,550

1,270

1,210

1,150

1,120

1,080

1,000

977

957

886

820

763

715

45,767

1,476

90,780

June

679

655

628

611

595

585

565

540

525 

510

*495

486

476

458

440

430

417

404

587

585

387

583

370

558

551

547

539

532

324

321

-

13,776

459

27,520

July

514

510

304

304

504

507

307

290

283 

270

267

267

263

260

257

257

254

248

242

242

239

259

256

253

227

227

227

224

224

222

219

8,067

260

16,000

Aug.

213

210

210

210

208

208

*205

200

197 

200

197

197

194

194

192

192

190

190

190

190

187

195

216

227

202

197

194

205

208

205

6,232

201

12,560

Sept.

200

197

197

197

194

192

192

190

187 

182

180

180

180

180

177

180

182

180

177

177

175

175

177

177

177

180

180

182

190

208

-

5,542

185

10,990

Calendar year 1950: Max 19,200 Mln 146 Mean 1,146 Ac-ft 829,300

Water year 1950-51 : Max 19,200 Min 174 Mean 1,284 Ao-ft 929,500

Peak discharge (base, 5,700 cfs). Oct. 26 (6:50 p.m.) 7.750 cfs (10.12 ft); Oct. 29 (8 p.m.)

50,500 cfs (16.61 .. ft); Nov. 16 (9 a.m.) .. 7,400 , cfs (9.97 . ft); Dec. . 9 (8 a.m.) .. 6,940 cfs (9.77 ft);

p.m.) 6,660 cfs (9.64 ft); Feb. 10 (12 p.m.) 6,520 cfs (9.48 ft). 

Discharge measurement made on this day.
338 SACRAMENTO RIVER BASIN

South Pork Pit River near Likely, Calif.

Location.--Lat 41°14', long. 120°25', in NE-f 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.--348 sq mi.

Records available.--October 1928 to September 1951.

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. 22 years (1929-51), 66.9 cfs.

Extremes. Maximum discharge during year, 466 cfs May 13 (gage height, 4.15 ft); maximum

 gage height, 4.23 ft Feb. 1 (ice jam); minimum discharge. 12 cfs Sept. 20.

1928-51: 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 reg-

 uIOTed by West Valley Creek Reservoir beginning in May 1937 (total capacity, 17,700 

acre-ft). Diversions above station for irrigation.

Revisions. W 861: Drainage area.

Rating table, water year 1950-51, except periods of ice effect (gage 

height, in feet, and discharge, In cubic feet per second)

1.7 

1.9 

2.2 

2.6

3.0 

3.5 

4.0

162

276

432

Discharge, in cubic feet per second, water year October 1950 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.

23

22 22

22

22

32

28

26

24

24

24

23

22

22

22

22

22

*23

22

22

22

22

23

24

25

30

43

BTf

30

39

30

787

25.4

1,560

Nov.

33

36

34

31

29

28

27

27

25

?A

26

27

26

27

26

28

30

34

42

57

98

S3

41

39

38

36

34

33

33

36

1,059

35.3

2,100

Dec.

36

34

40

55

40

56

67

 S3" 71

56

52

54

46

48

45

41

38

38

39

36

34

33

34

33

33

31

30

3T

40

37

34

1,325

42.7

2,630

Jan.

b32

b30

b32

34

34

b30

b30

b32

*30

31

31

b30

b26

b28

29

b27

b29

b29

b28

b24

b32

35

38

b42

b45

b44

b40

b35

b30

b22

b25

984

31.7

1,950

Feb.

b30

b33

37

45

74

90

T2B" 135

108

99

94

99

75

71

66

60

62

62

52

*60

59

56

57

52

57

52

43

48

_

-

1,903

68.0

3,770

Mar.

47

46

b42

48

43

45

42

46

b43

b40

b45

53

90

150

17_8

170

126

106

96

90

90

86

82

80

80

76

74

74

75

74

72

2,409

77.7

4,780

Apr.

71 73"

79

90

93

105

119

122

138

172

182

*197

217

238

250

255

284

293

YSS

258

248

238

231

238

231

211

197

222

219

206

-

5,745

192

11,400

May

180

160 T6"B~

191

170

274

313

279

258

245

276

276

350

366 3T5~

293

276

260

263

260

255

248

248

245

240

238

250

253

231

206

182

7,770

251

15,410

June

166

T5¥

144

131

140

121

116

110

108

102

98

131

148

146

144

142

140

138

135

131

131

124

119

114

111

108

105

76

38

34

-

3,605

120

7,150

July

29

28

28

28

30

30

28

27

22

*21

18

TS

18

26

46

45

47

49

52

50

49

50

53

54

50

49

50

57

86

89

110

1,337

43.1

2,650

Aug.

129

114

100

100

100

96

96

102

119

119

114

119

154

164

174

172

174

172

172

160

110

68

77

75

67

64

62

"55 57

59

60

3,407

110

6,760

Sept.

60

W

59

59

58

59

58

57

57

55

*55

48

36

36

36

37

29

14

14

12

12

13

14

16

24

35

31

21

22

23

-

1,110

37.0

2,200

Calendar year 1950: Max 213 Min - Mean 57.1 Ac-ft 41,320

Water year 1950-51: Max 366 Min 12 Mean 86.1 Ac-ft 62,360

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
SACRAMENTO RIVER BASIN 339

Pit River near Cariby, Calif.

Location. Lat 41°24', long. 120°55', in SW£ 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 1951 (1929-31 

incomplete).

Gage. Water-stage recorder. Altitude of gage is 4,300 ft (from'topographic map). Prior 

£o December 1905, staff gage at site 100 ft upstream and at different datum. May 6, 

1929, to Sept. 30, 1931, water-stage recorder at site 100 ft upstream and at different 

datum.

Average discharge. 20 years (1931-51), 198 cfs.

Extremes. Maximum discharge during year, 1,040 cfs May 18 (gage height, 4.56 ft); minimum, 

b.7 cfs Sept. 23.

1904-5; 1929-51: Maximum discharge recorded, 17,000 cfs -Mar. 8 1904 (gage height, 

14.0 ft, datum then in use): minimum, 0.1 cfs Apr. 29, Aug. 5, Sept. 18, 1934, AUK 18- 

21, 1935.

Remarks. Records good except those for periods of ice effect, which are fair. Flow regulated by many small reservoirs since beginning of record (total usable capacity now, 

about 100,000 acre-ft). Many diversions above station for irrigation.

Revisions. W 861: Drainage area.

Rating table, water year 1950-51, except periods of ice effect 

(gage height, In feet, and discharge, in cubic feet per second)

2.2 9.5

2.3 17

2.4 30

2.5 47

2.7 95

3.0 197

4.0 700

4.6 1,06O

Discharge, In cubic feet per second, water year October 195O 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.

40

40

44

49

51

60

62

65

65

69

65

65

69

67

62

60

51

*51

38

23

27

58

90

72

72

67

87

90

113

116

TOT

1,989

64.2

3,950

Hov.

98

92

82

77

79

77

72

69

65

62

65

62

58

12

74

90

107

122

152

152

205

'2~60~ 273

213

149

132

119

113

107

101

-

3,389

113

6,720

Dec.

101

104

119

197

273

353

3TC

333

333

310

264

213

189

197

205

230

201

167

152

92

135

159

125

116

128

125

116

110

101

107

110

5,675

183

11,260

Jan.

110

85

17

95

101

101

92

85

 85

90

95

90

85

90

87

95

128

178

159

b!20

b!60

186

328

446

472

524

527

456

296

b200

b!30

5,780

186

11,460

Feb.

blOO

bTSS

b!40

b!80

218

368

546

672

724

705

706

678

540

477

399

314

282

260

238

*234

226

234

238

230

230

218

242

193

_

_

-

9,713

347

19,270

Mar.

174

170

b!50

125

104

182

189

251

264

264

213

201

383

519

778

 sis 952

880

718

394

388

394

378

368

273

251

260

264

291

251

256

11,201

361

22,220

Apr.

242

209

179

159

178

182

193

242

247

242

222

*178

ISO

145

T55

260

305

333

414

456

435

368

323

310

305

278

278

333

368

373

8,127

271

16,120

Calendar year 1950: Max 932 Mln 4.3 Mean 164

May

399

388

353

333

353

414

482

579

730

868

940

910

874

832

814

874

982

1,050

982

904

772

612

568

409

333

319

296

300

282

264

242

18,438

595

36,570

June

282 238"

159

174

145

186

159

77

26

37

90

107

69

51

37

28

42

65

69

82

186

95

67

77

72

74

45

40

74

90

2,943

98.1

5,840

July

65

35

44

193

125

87

44

33

33

*56

33

33

33

37

45

49

54

45

38

18

15

2T

24

28

30

27

24

22

21

19

22

1,353

43.6

2,680

Aug.

24

26

27

26

23

21

16

14

14

13

 sz 12

90

~57 HO

44

38

38

30

28

35

42

56

58

51

49

45

44

40

33

43

1,219

39.3

2,420

Sept.

363

T59

132

116

110

92

72

65

65

62.

38

*32

37

54

49

49

51

79

69

45

30

30

15

35

33

30

28

62

82

67

2,146

71.5

4,260

Ac-ft 118.900

Water year 1950-51: Max 1,030 Mln 12 Mean 197 Ac-ft 142^800

* Discharge measurement made on this day. 

b Stage-discharge relation affected by ice.
340 SACRAMENTO RIVER BASIN

Pit River at Fall 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 Fall 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. Prior to December 1922, at site 0.7 mile upstream at differ^ 

ent datum. Altitude of gage Is 3,235 ft (from topographic map).

Average discharge. 28 years (1923-51), 461 cfs (excluding flow of Fall River).

Extremes. Maximum discharge during year, 2,900 cfs Feb. 13 (gage height, 4.25 ft); minimum, 57 cfs Aug. 8.

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 Afd studies; minimum, 12 ofs Aug. 5, 1926, Oct. 23, 1936.

Remarks. Records good. Flow regulated by many small reservoirs (total usable capacity 

now, about 123/000 acre-ft). Fall River Is diverted through Pit No. 1 powerhouse and 

returned to Pit River below station. Many diversions above station for Irrigation. 

River receives return flow from McArthur, Khoch, and other diversions above station.

Cooperation.--Water-stage recorder graph furnished by Pacific Gas & Electric Co.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.4

.7 

1.0

1.5

57

109

186

356

2.0 

3.0 

4.0 

4.3

630

1,410

2,540

2,980

Discharge, in cubic feet per second, water year October 1950 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.

120

172

120

107

T55

192

158

158

155

155

158

195

172

142

123

135

*145

145

161

153

142

158

158

135

123

153

201

195

192

238

255

4,941

159

9,800

Nov.

300

251

222

210

201

189

189

189

183

172

175

172

178

201

207

226

242

326

499

576

612

840

723

540

488

400

317

300

286

279

-

9,694

323

19,230

Dec.

275

272

352

1,130

1,050

952

1,070

1,080

1,090

1,010

825

688

600

630

656

662

600

546

488

438

387

356

318

352

345

322

314

329

307

300

296

18,040

582

35,780

Jan.

275

27S

275

282

289

304

300

386

282

296

289

296

289

282

293

314

428

1,030

908

772

716

702

1,270

1,970

2,540

2,030

1,680

1,460

1,190

825

606

22,558

728

44,740

Feb.

455

4"44" 433

450

965

1,650

2,300

3,530

2,720

2,680

2,500

2,720

2,840

2,300

1,710

1,450

1,220

1,080

960

900

938

915

885

938

908

915

892

840

_

_

-

39,538

1,412

78,420

Mar.

818

723

588

494

458

438

594

975

1,130

1,190

1,060

982

968

1,030

1,410

,650

,870

.970

1,940

,880

,720

,450

,300

,240

,170

1,120

998

908

870

870

900

54,694

1,119

68,810

Apr.

840

818

758

702

645

612

612

606

594

606

606

582

564

591

345

318 548"

656

618

744

723

709

730

378

627

709

444

576

702

915

-

18,456

615

56,610

May

878

818

795

758

702

662

662

788

885

990

,070

,150

,210

,250

,270

,240

,170

,150

,170

,190

,170

,150

,090

938

780

570

514

198

576

594

560

27,508

881

54,160

June

248

207

404

'5T75

140

157

207

258

242

242

201

155

155

150

116

118

120

120

105

9T_

109

105

101

107

105

97

178

252

140

127

-

4,911

164

9,740

July

109

93

99

137

140

132

127

107

101

168

169

Tt)3

89

97

95

89

79

89

87

82

84

84

77

86

79

69

75

69

75

72

72

5,031

97.8

6,010

Aug.

72

74

77

75

74

68

60

5?

69

69

68

69

77

80

77

74

75

63

69

79

77

80

86

82

77

79

79

72

84

89 m

2,522

74.9

4,610

Sept.

95

93

97

97

95

99

97

91

35

109

114

153

T25

120

118

109

101

101

95

105

107

97

105

111

111

111

116

114

114

114

-

3,213

107

6,370

Calendar year 1950: Max 2,780 Min 62 Mean 481 Ac-ft 348,200

Water year 1950-51: Max 2,840 Mln 60 Mean 517 Ac-ft 374,300

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 341

Hat Creek near Hat Creek, Calif.

Location. Lat 40°41', long. 121 "25', in SE£ sec. 28, T. 33 N. , R. 5 E. , on right bank 

i mile northeast of Old Station post office and 8 miles southeast of Hat Creek post 

office.

Drainage area.--155 sq mi.

Records available. July 1926 to April 1928, April 1928 to September 1951.

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 . 24 years {1926-29, 1930-51), 120 cfs.

Extremes.--Maximum discharge during year, 260 cfs Nov. 21 (gage height, 3.00 ft); minimum, 

lua cfs Oct. 11.

1926-51: Maximum discharge, 2,500 cfs Dec. 11, 1937 (gage height, 7.75 ft, in gage 

well, affected by draw-down), from rating curve extended above 160 cfs on basis of 

slope-area determination of peak flow; minimum, 67 cfs Sept. 7, 1934.

Remarks.--Records excellent except those for period of no gage-height record, which are 

good. Small diversions above station for irrigation.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

106

143

185

234

Discharge, In cubic feet per second, water year October 1950 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.

115

115

115

115

122

120

117

115

115

115

115

115

115

115

115

113 *TT7

117

117

115

115

115

115

117

122

141

141

135

167

187

TIT

3,814

123

7,560

Nov.

134

132

132

134

132

128

128

128

126

124

124

124

124

122

120

119

T2T

139

143

185

216

T6T

145

141

139

137

137

135

134

145

-

4,112

137

8,160

Dec.

137

134

149

163

145

155

172

172

183

159

185

174

159

190 ITT

159

153

149

147

145

143

141

139

137

137

135

135

135

135

a!30

aT30"

4,701

152

9,320

Jan.

a!25

a!25

a!20

a!30

a!40

a!35

a!30

a!30

130

130

126

126

124

130

128

126

126

124

124

120

132

139

134

132

130

132

130

128

126

115

rre

3,962

128

7,860

Feb.

120

T2T

126

147

T¥3

134

141

139

134

134

139

134

132

130

130

128

130

128

*126

130

128

126

124

122

126

124

122

124

_

_

-

3,645

130

7,230

Mar.

122

120

115 T5~2~

119

119

115

120

120

117

120

122

122

122

122

122

122

120

120

122

122

120

120

122

122

122

122

122

122

124

T2?

3,743

121

7,420

Apr.

122

T2T

124

126

128

130

132

130

128

132

*134

137

141

145

145

155

T55

151

153

153

151

149

149

151

147

149

149

153

149

145

,

4,235

141

8,400

May

143

143

143

141

159

141

141

143

147

155

176

159

153

147

149

157

167

170

176

174

174

178

181

183

187

197

204 T9"5

187

183

174

5,111

165

10,140

June

170

167

170

170

174

172

167

159

159

163

161

161

163

163

170

176

m

170

167

172

*170

163

161

159

159

157

155

153

151

145

-

4,921

164

9,760

July

143

135

137

137

135

134

132

132

*132

135

135

135

135

134

134

134

134

134

132

128

126

122

120

122

124

120

115

TT7

115

119

122

4,013

129

7,960

Aug.

122

122

J22

122

124

124

124

124

*122

119

117

115

115

115

115

113

TT5

117

124

128

128

128

128

128

128

128

128

128

124

120

119

3,786

122

7,510

Sept.

117

115

115

115

115

113

115

120

122

124

124

*122

120

122

122

120

122

122

120

119

113

113

117

117

115

115

115

117

120

122

-

-5,544

118

7,030

Calendar year 1950: Max 216 Mln 91 Mean 125 Ac-ft 90,520

Water year 1950-51: 1950-51: Max 216 Min 1135 Mean 1365 Ac-ft 98,3505

Fgak discharge (base, 170 efs).--0ct. 26 (10:50 p.m.) 219 cfs (2.84 ft); Oct. 50 (3 a.m.) 244 cfs 

(2.94 ftj; Nov. 21 (1 a.m.) 260 cfs (3.00 ft); Dec. 11 (2:50 p.m.) 219 cfs (2.84 ft); Dec. 14 (11 a. 

216 cfs (2.83 ft); May 10 (6 a.m.) 185 cfs (2.70 ft); May 27 (11 p.m.) 226 cfs (2.87 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of range In stage and weather records.

256498 O - 53 - 23
342 SACRAMENTO RIVER BASIN

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

Location. Lat 40°59', long. 121°47', in SW£ sec. 17, T. 36 N., R. 2 E., on right bank 

i 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,345 ft (from river-profile map).

Average discharge.--40 years (1911-51), 2,586 cfs. Period 1911-27 extrapolated on basis 

or records ror Pit River at Big Bend.

Extremes.--Maximum discharge during year, 11,900 cfs Feb. 11 (gage height, 12.50 ft); minimum, 366 cfs Feb. 3.

1927-51: 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, 144 

cfs Apr. 15, 1945.

Remarks. Records excellent except those for periods of no gage-height record, which are 

good. Flow regulated by reservoirs and power plants. Many diversions above station 

for irrigation.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co,, obtained 

in connection with a Federal Power Commission project.

Revisions (water years). W 843: 1935(M).

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

5.6 

6.0 

7.0

, 410

655

1,450

8.0

9.0

11.5

2,560

4,050

9,300

Discharge, In cubic feet per second, water year October 1950 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.

718

2,040

2,210 

2,250

2,070

2,050

1,180

1,440 

2,020

2,290

2,470

2,400

2,580

2,320

1,910

2,240

2,200

2,430

*2,210

2,160

1,840

605

2,250"

2,380

2,410

1,850

2,590

2^120

1,750

2,310

2,260

63,633

2,053

126,200

Nov.

2,440

2,310

2,550 

2,520

1,730

2,240

2,480

2,420 

2,440

2,500

2,440

650

2,T5?0"

2,160

2,060

2,190

2,160

2,860

2,480

2,580

2,990

3,450

2,980

3,260

2,880

2,580

2,440

2,720

2,450

2,470

-

73,470

2,449

145,700

Dec.

2,340

2,590

2,420 

2,680

3,360

3,540

3,330

3,560 

3,730

3,990

3,530

- 3,350

3,180

3,370

3,660

3,650

3,390

3,550

2,920

2,840

2,880

2,810

2,410

2,480

2.190

3,050

2,600

2,490

2,700

2,600

2,590

93,780

3,025

186,000

Jan.

2,570

2,670

2,610 

2,930

2,710

2,700

1,440

2,420 

2,720

2,750

2,540

2,630

2,120

1,420

2,610

2,990

2,880

3/500

3,750

3,710

3,480

3,570

3,540

3,540

4,100

4,880

I,46'0

3,860

3,910

3,650

3,560

96,220

3,104

190,800

Feb.

3,540

2,250

1,120 

3.O90

3,620

3,600

4,280

5,250 

5,390

6,350

8.820

8,20'0

7,440

5,950

4,950

4,640

4,170

3,610

3,920

3,730

3,650

3,680

3,600

3,570

3,450

3,570

3,570

3,570

_

_

-

122,580

4,378

243,100

Mar.

3,560

3,460

3,320 

2.540

2,830

2,900

3,160

3,300 

3,510

3,630

3,620

3,600

3,600

3,590

3,570

3,570

3,600

3,620

4.610

4,370

4,270

4,120

3,870

3,700

3,200

3,890

3,620

3,570

3,560

3,560

3,510

110,830

3,575

2 19 , 800

Apr.

2,780

3,310

3,260 

3,380

3,500

3,510

3,140

1.260 

2,720

3,420

3,480

3,460

3,440

3,500

1,570

2,830

3,340

3,500

3,450

3,450

3,450

1,760

3,020

3,440

3,380

3,390

3,330

2,940

1,920

3,020

-

91,950

3,065

182,400

May

3,300

3,540

2,950 

2,800

3,480

3,280

3,560

3,360

3,460

3,460

3,520

3,280

3,050

3,510

3,570

3,570

3,440

3,380

3,390

2,970

3,670

3,570

3,510

3,540

3,440

2,860

674

1,555

1,910

1,960

2,950

96,614

3,117

191,600

June

2,800

2.900

1,970 

1,850

1,950

2,470

2,280

1,890 

1,730

1,780

2,390

2.0OO

2.500

2,600

2,170

1,320

1,160

2,080

2,310

2,480

2,480

2,470

1,320

1.020

2,520

2,300

2,470

2,660

2,500

al,900

-

64,270

2,142

127,500

July

a920

a2,500

a2,700 

al,600

a2,400

a2,200

1,120

727 

2,260

2,150

2,220

2,140

2,190

741

578

2,160

2,150

1,870

1,610

1,620

856

714

1,950

1,900

2,320

2,430

2,400

1,070

596

2,000

2,170

54,262

1,750

L07 , 600

Aug.

2,210

2,240

1,790 

694

1,110

5,340 2,ei'o

1,850 

1,880

*1,670

482

470

2,325

2,190

2,300

2,310

2,240

512

1,040

2,130

2,320

2,400

2,020

1,850

482

1,250

2,180

2,570

2,250

2,270

2,100

57,080

1,841

L 13, 200

Sept.

1,190

724

1,150 

2,480

2.640

2,540

2,350

458 

T55

2,170

2,320

2,500

2,520

2,310

488

634

2,120

2,320

2,310

2,290

2,200

573

7,47

2,280

2,450

2,250

2,160

1,960

512

1,110

52,214

1,740

103, 6 00

Calendar year 1950: Max 5,290 Hin 482 Mean 2,510 Ac-ft 1,817,000

Water year 1950-51: Max 8,820 Mln 453 Mean 2,676 Ac-ft 1,938,000

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station at Big Bend and for 

tunnel 2 (unpublished).
SACRAMENTO RIVER BASIN 343

Pit River at Big Bend, Carl if.

Location. Lat 41°01', long. 121°55 I , in sec. 31, T. 37 N., R. IE., on left bank at Big 

Bend 0.5 mile downstream from Nelson Creek, 1 mile upstream from Kosk Creek.

Drainage area.--4,920 sq mi, approximately, excluding Goose Lake basin.

Records available.--September 1910 to September 1951. Published as "at Henderson" 1910-23.

Gage.--Water-stage recorder. Datum of gage is 1,674.47 ft above mean sea level, datum of 

1929. Prior to Dec. 28, 1912, staff gage at same site and at datum 7.69 ft higher. 

Dec. 28, 1912, to June 21, 1924, water-stage recorder at same site and former datum.

Extremes.--Maximum discharge during year, 6,720 cfs Feb. 11 (gage height, 10.99 ft); minimum, 75 cfs Hov. 11 (gage height, 4.43 ft).

1910-51: Maximum discharge, 34,200 cfs Dec. 12, 1937 (gage height, 16.26 ft), from 

rating curve extended above 11,000 cfs on basis of velocity-area studies; minimum, 44 

cfs Oct. 30, Nov. 30, 1948 (after diversion to Pit No. 5 powerhouse).

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Flow regulated by reservoirs and power plants above station. 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 No. 4 

Dam, preceding page.

Revisions (water years).--W 843: 1935(M).

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Apr. 30 May 1 to Sept. 30

4.4

5.0 

5.5 

6.0 

6.5

160

266

417

625

7.0

8.0

9.0

10.0

11.0

920

1,760

2,960

4,600

6,740

4.7 

5.5 

6.0 

6.5 

7.0 

8.0

110

246

390

610

910

,760

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

AO-ft

Oct.

122 

123

124

128

139

126

128

126

128

126

128

129

124

124

118

124

*151

131 

124

126

124

126

124

128

147

182

205

"235" 289

236

175

4,524

146

8,970

Nov.

151 

111

103

96

92

87

85

85

84

83

80

S3

83

84

116

264

379

485 

334

264

224

183

674

337

151

129

128

122

118

140

-

5,350

178

10,610

Dec.

120 

103

T3*

156

151

584

576

831

1,820

2,760

1,900

1,340

1,230

1,670

2,230

2,720

2,860

1,590 

1,030

911

490

391

261

1,220

1,170

867

391

155

824

489

983

31,957

1,031

63,390

Jan.

1,010 

682

142

168

156

146

139

136 T39-

155

177

158

147

142

160

166

307

511 

527

440

833

675

811

605

916

1,650

1,550

2,240

ess

538

276

16,585

535

32,900

Feb.

214 

193

189

m

904

1,250

2,970

3,890

3,910

4,570

*5,650

4,830

5,380

4,630

3,680

3,150

3,340

3,040 

2,170

2,130

1,940

1,630

1,560

1,700

2,780

1,440

2,530

1,690

-

-

71,706

2,561

142,200

Mar.

S18 

939

687

560

377

284

*454

407

631

645

1,540

417

400

354

675

503

327

1,910 

1,410

1,080

938

795

559

606

1,490

1,180

452

502

276

269

254

21,739

701

43,120

Apr.

216 

224

249

256

261

279

?5T

256

264

276

271

269

266

269

264

254

254

244 

238

229

218

212

207

205

197

191

189

m

210

193

-

7,159

239

14, 200

May

210 

?5T

263

a350

al,150

al,400

1,280

969

973

973

1,050

754

691

824

1,070

1,070

917

814 

840

923

1,190

1,020

966

938

925

664

242

242

237

233

1,350

24,779

799

49,150

June

1,190 

996

272

184

181

174

172

*174

169

164

167

166

166

164

163

163

163

161

161

159

158

156

153

152

152

150

150

150

148

147

-

6,825

228

13,540

July

142 

148

m

147

144

144

146

146

146

144

144

144

144

144

148

146

142

144 

142

144

141

141

144

140

138

140

140

140

141

137

154

4,431

143

8,790

Aug.

137 

141 ISO"

140

135

138

137

132

*127

131

135

134

132

132

128

130

131

131 

130

132

T3z- 125

130

128

127

127

128

132

127

128

128

4,085

132

8,100

Sept.

130 

T3z- 120

T3T

131

130

131

127

124

130

127

130

131

127

125

124

130

127 

127

127

125

127

128

128

125

124

124

125

127

123

-

3,817

127

7,570

Calendar year 1950: Max 2,860 Mln 50 Mean 298 Ac-ft 215,800

Water year 1950-51: Max 5,650 Mln 80 Mean 556 Ac-ft 402,500

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for station below Pit No. 4 Dam 

and unpublished record of diversion through Pit No. 5 powerhouse.
344 SACRAMENTO RIVER BASIN

Pit River near Montgomery Creek, Calif.

Location. Lat 40°51', long. 121 0 59', in NE£ sec. 32, T. 35 N., R. 1 W., on left bank 

1 mile upstream from Cow Canyon Creek 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 1951.

Gage.--Water-stage recorder. Datum of gage is 1,075.00 ft above mean sea level (levels 

By Bureau of Reclamation).

Average discharge. 6 years (1945-51), 3,270 cfs.

Extremes.--Maximum discharge during year, 16,900 cfs Feb. 11 (gage height, 9.58 ft); miniraum, 640 cfs Oct. 9.

1944-51: Maximum discharge, 18/600 cfs Dec. 28, 1945 (gage height, 10.14 ft); minimum, 570 cfs Oct. 21, 1945.

Remarks.--Records excellent. Plow regulated by many small reservoirs and several power 

plants above station since beginning of record. Many diversions above station for 

irrigation. This station will be just above pool stage when Shasta Lake is full.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

2.1 650

2.5 940

3.0 1,410

3.5 2,010

4.0 2,700

4.5 3,510

5.0 4,400

5.5 5,440

6.0 6,580

6.5 7,800

7.0 9,100

8.0 11,900

9.0 15,000

Discharge, in cubic feet per second, water year October 1950 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.

952

1,970

2,480

2,470

2,390

2,350

1,260

1,660 

2,000

2,440

2,570

2,690

2,810

2,520

2,030

*2,560

2,510

2,790

2,410

2,400

1,930

844

2,320

2,520

2,770

2,680

3,470 

5,020

4,660

5.910

3,780

81,166

2,618

161,000

Nov.

5.6OO

5,170

3,030

3,090

2,400

2,710

2,770

2,850 

2,810

2,780

2,890

1.290

2,200

2,590

2,520

4,300

6,270

7.620

5,380

5,480

5,300

5,370

4,600

4,650

4,080

5,720

3,640 

3,370

3,470

5,540

111,290

3,710

220,700

Dec.

3,590

5,520

4,020

4,570

5,040

5,550

6,600

7,660 

8,050

6,980

6,740

6,590

5,560

7,020

8.240

7,630

6,560

6,640

5,580

5,020

4,790

4,580

3,880

3,440

3,810

4,340

4,020 

5,580

5,850

3,600

5.500

163,750

5,282

324,800

Jan.

3,430

3.7OO

5,530

4,080

3,780

3,520

2.620

5,310 

3,560

5,950

4,470

4,210

3,310

2,850

3,730

4,640

6,190

7.640

6,630

5,900

5,440

5, 730

5,500

5,570

5,810

^,660

6,340 

5,830

5,740

5,270

5,O7O

148, 01C

Feb.

4,920

4,450

2.500

6,500

8,530

7,280

7,290

8,500 

8,440

8,920

15.200

12,400

10, 900

9,610

*8,270

7,570

7,150

5,850

6,510

5,900

5,680

5,570

5,590

5,070

4,930

5,230

4,960 

4,980

..

_

-

196,280

4,775 I 7,010

293,600 p89,300

Mar.

4,970

4,720

4,560

5.970

4,230

5,050

5,560

5,860 

6.540

5,910

5,330

5,410

5,320

5,500

5,550

5,430

5,270

4,940

6,430

6,110

6,000

5,880

5,550

5,270

4,520

5,860

5,270 

5,120

5,200

5,160

5,090

165,180

5,328

327,600

Apr.

4,220

4,750

4,840

4,920

5,100

5,080

5,090

2.820 

4,100

5.150

5,110

5,140

5,120

5,140

3,330

4,050

4,970

4, 99O

4,950

4,8OO

*4,760

3,070

5,990

4,700

4,520

4,460

4,470 

4,820

3,340

3,820

155,620

4,521

269, OOO

May

4,440

4,720

4,340

4,150

4,770

4,760

4,880

4!620

4,640

4,740

4,360

4,290

4,350

4,600

4,560

4,4OO

4,290

4,290

3,720

4,570

4,420

4,340

4,290

4,150

4,010

1.210 

2,120

2,420

2,410

3,210

126,680

4,086

251,300

June

3,520

5.620

2,740

2,380

2,540

2,810

2,910

2,360 

2,180

2,040

2,770

2,460

2,790

*5,060

2,640

1,530

1,550

2,390

2,610

2,780

2,450

2,950

1,610

1.510

2,760

2,630

2,580 

2,520

2,400

2,120

74,810

2,494

L48, 400

July

1,210

2,850

2.980

1,910

2,820

2,490

1,390

1,030 

2,590

2,420

2,470

2,390

2,520

1,020

790

2,460

2,370

2,280

1,800

1,830

1,010

944

2,290

2,180

2,510

2,750

2,700 

1,210

932

2,410

2,410

62,966

2,031

L24, 900

Aug.

2,420

2,440

2,100

848

1,020

5.650

5,270

*2,100 

1,950

1,580

774

779

2,550

2,440

2,500

2,540

2,490

764

1,110

2,530

2,390

2,720

2,260

2,140

776

1,280

2,620 

2,810

2,750

2,560

2,520

64,661

2,086

L28, 300

Sept.

1,500

819

1,410

2.6OO

2.950

2,930

2,690

808 

720

2,450"

2,550

2,700

2,950

2,420

798

750

2,450

2,570

2,580

2,560

2,510

857

889

2,470

2,740

2,490

2,440 

2,300

930

933

59,724

1,991

118,500

Calendar year 1950 : Max 9,100 Mln 710 Mean 3,485 Ac-ft 2,523,000

Water year 1950-51 : Max 13,2oo Mln 720 Mean 3,809 Ac-ft 2,757,000

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 345

Squaw Creek above Shasta Lake, Calif.

Location. Lat 40°51', long. 122°07', In SW^ sec. 29, T. 35 N., R. 2 W., on left bank 0.5 

mile 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 ml.

Records available.--December 1944 to September 1951.

Gage. Water-stage recorder. Altitude of gage Is 1,170 ft (from topographic map).

Average discharge.--6 years (1945-51), 195 cfs.

Extremes. Maximum discharge during year, 6,750 cfs Oct. 30 (gage height, 16.50 ft); minimum, 13 cfs Oct. 1, 2.

1944-51: Maximum discharge, that of Oct. 30, 1950; minimum, 10 cfs Sept. 22-25, 1949, 

Jan. 3, 1950.

Remarks.--Records good. No diversion.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

5.8 

6.0 

6.5 

7.0

7.5 

8.0 

8.5 

9.0

141

226

340

505

10.0

11.0

13.0

15.0

950 

1,510 

3,040 

5,OOO

Discharge, in cubic feet per second, water year October 195O 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.

13

13

14

16

28

25

17

16

15

15

14

14

14

14

14

*18

193

90

40

29

26

24

22

22

99

273

347

1,970

1,810

2,970

735

8,910

287

17/670

Nov.

416

294

232

195

166

147

130

118

107

100

95

90

90

88

126

1,660

2,110

2,120

1,260

950

886

693

529

423

353

307

283

250

228

277

-

14,723

491

29,200

Dec.

317

295

488

878

783

738

1,060

1,900

1,690

1,230

945

792

698

1,O8O

2 ,.460

1,690

1,100

796

688

569

473

413

363

327

302

275

253

236

218

210

195

23,462

757

46,540

Jan.

181

178

ITS

204

206

192

181

181

183

272

798

*684

477

387

399

454

1,390

2,150

1,100

778

662

565

545

612

698

706

693

630

545

465

413

17,087

551

33,890

Feb.

366

348

384

1,320

2,300

1,340

1,050

930

819

810

4,520

2,6OO

1,440

1,060

846

711

612

529

458

416

381

350

322

300

279

270

253

~~z 248

_

-

25,262

902

50,110

Mar.

232

218

206

226

270

539

760

759

-783 1,120

581

477

448

469

473

448

396

358

330

309

295

279

264

248

240

226

216

204

199

188

180

11,941

385

23,680

Apr.

173

165

160

157

152

149

145

142

*137

134

130

126

122

119

114

111

108

105

101

98

95

93

92

92

90

88

93

181

' 123

105

-

3,700

123

7,340

May

99

97

133

210

255

220

197

178

165

160

160

145

137

131

123

118

113

107

103

100

97

94

92

90

87

84

82

79

78

76

75_

3,885

125

7,710

June

74

72

71

69

67

67

66

64

62

60

58

56

55

54

52

52

51

49

47

46

47

46

45

43

42

4l'

40

39

38

36

-

1,609

53.6

3,190

July

36

36

36

35

35

35

34

33

32

30

29

28

29

28

27

26

26

25

24

24

24

24

24

25

24

24

24

24

24

23

22

870

28.1

1,730

Aug.

22

22

22

21

21

20

20

*20

20

20

20

20

19

18

18

18

18

18

18

11

17

17

19

19

18

17

17

17

18

20

19

590

19.0

1,170

Sept.

18

IS

17

16

16

16

16

16

15

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

16

18

-

448

14.9

889

Calendar year 1950: Max 2,97O Min 12 Mean 269 Ac-ft 195,000

Water year 195O-51: Max 4,52O Min 13 Mean 3O8 Ac-ft 223, 1OO

Peak discharge (base, 2.OOP efs).--0et. 30 (3 a.m.) 6,75O cfs (16.50 ft); Nov. 16 (12 p.m.) 2,47O 

cfs (12.31 ft);Dec. 8 (9a.m.) 2,O2O cfs (11.74 ft); Dec. 15 (10 a.m.) 2.77O cfs (12.69 ft); Jan. 

18 (1:30 a.m.) 2,90o cfs (12.85 ft); Feb. 5 (2:30 a.m.) 2,820 cfs (12.75 ft); Feb. 11 (12:3o p.m.) 

6,530 cfs (16.32 ft).

* Discharge measurement made on this day.
346 SACRAMENTO RIVER BASIN

MeCloud River near MeCloud, Calif.

Location. Lat 41°11', long. 122°04', in NE£ sec. 34, T. 39 N., R. 2 W., on right bank 

U.5 mile downstream from Angel Creek and 6 miles southeast of MeCloud.

Drainage area. 382 sq mi.

Records available.--April 1931 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 2,750 ft (from topographic map).

Average discharge.--20 years, 833 cfs.

Extremes.--Maximum discharge during year, 2,610 cfs Dec. 15 (gage height, 3.69 ft); mini-

 mum, 690 cfs Oct. 14, 15.

1931-51: Maximum discharge, 8,820 cfs Feb. 28, 1940 (gage height, 8.9 ft), from 

rating curve extended above 3,700 cfs on basis of velocity-area and Avd studies; minimum, 524 cfs Nov. 23, 24, 1932.

Remarks.--Records excellent except those for periods of no gage-height record, which are 

good.. Two small diversions above station for irrigation.

Revisions (water years).--W 843: 1936(M). W 1091: Drainage area.

Rating table,-water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.0 

1.4 

1.8 

2.2

670

853

1,080

1,360

2.6 

3.0 

3.5

1,670

1,990

2,440

Discharge, in cubic feet per second, water year October 1950 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.

694

694

698

702

710

702

694

698

694

694

694 

694

694

690 530"

698

723

710

*694

698

698

698

698

702

754

822

948

1,440

2,120

2,150

1,350

26,345

850

52,250

Nov.

1,090

1,000

942

896

864

833

812

797

783

773

764 

759

75?

759

768

983

1,120

1,280

1,180

1,230

1,260

1,200

1,100

1,000

980

960

940

920

900

920

-

28,572

952

56,670

Dec.

940

950

960

980

1,000

980

1,000

1,200

1,400

1,300

1,250 

 1,200

1,160

1,350

2,580

1,890

1,520

1,350

1,260

1,200

1,120

1,070

1,030

1,000

977

948

924

907

896

891

875

35,908

1,158

71,220

Jan.

864

853

853

853

864

848

833

828

828

838

838 

822

812

812

817

817

828

869 8~5B~

833

838

833

828

828

828

822

810

800

800

800

790

25,745

830

51,060

Keb.

790

79TT

850

1,000

1,300

1,150

1,000

1,050

980

1,000

1,600 

1,500

1,100

1,050

1,000

960

940

920

900

880

860

850

840

830

820

820

820

820

_

_

-

27,420

979

54,390

Mar.

810

810

800 TOO"

820

830

840

870

*910

890

870 

860

860

870

880

870

860

860

850

860

880

913

913

919

930

936

942

948

959

965 355"

27,284

880

54,120

Apr.

.255

953

971

989

1,010

,020

,040

,050

,060

,080

,080 

,080

,090

,110

,110

,120

,130

*1,120

,100

,080

,080

,060

,060

,060

,040

,020

,020

,100

,090

,040

-

31,716

1,057

62,910

May

1,020

1,000

1,030

1,070

1,080

1,060

1,050

1,040

1,020

1,040

1,080 

1,050

1,020

1,000

989

995

1,000

1,010

1,000

995

989

989

989

983

977

971

965

953

936

919

907

31,127

1,004

61,740

June

902

B5B

891

896

896

885

880

875

869

869

864 

864

858

858

858

858

858

858

853

848

843

843

838

838

833

828 8TB~

833

828

828

-

25,776

859

51,130

July

828

B2S

822

817

815

810

810

805

800

800

795 

790

*790

788

788

788

788

788

783

TOT

783

783

783

783

783

783

783

783

783

783

783

24,629

794

48,850

Aug.

783

77H

778

778

778

778

778

773

773

*778

778 

778

778

778

778

778

778

778

778

778

778

778

778

773

773

773

778

773

768

764

7ST

24,055

776

47,710

Sept.

764

7BT

764

764

759

759

759

759

759

759

759 

754

754

754

754

759

750

750

750

750

750

750

750

745

73F

745

745

745

74E

7SO

-

22,614

754

44,850

Calendar year 1950 : Max 2,380 Min 690 Mean 840 Ac-ft 608,100

Water year 1950-51 : Max 2,380 Min 690 Mean 907 Ac-ft 656,900

Peak discharge (base, 1,000 gfs). Oct. 30 (4:30 a.m.) 2,480 cfs (3.54 ft); Nov. 18 (7:30 p.m.) 

1,370 cfs (2.21 ft); probably Dec. 9 (time unknown) 1,510 cfs (2.40 ft); Dec. 15 (11 a.m.) 2,610 

cfs (3.69 ft); probably Feb. 11 (time unknown) 1,880 cfs (2.86 ft); Apr. 28 (7 p.m.) 1,140 cfs (1.89 

ft).

* Discharge measurement made on this day.

Note.--No gage-height record Nov. 22 to Dec. 12, Jan. 27 to Mar. 21, July 5-13; discharge estimated 

on basis of ranges in stage and records for station above Shasta Lake.
SACRAMENTO RIVER BASIN 347

McCloud River above Shasta Lake, Calif.

Location.--Lat 40°57', long. 122°13', in NW£ sec. 28, T. 36 N., R. 3 W., on right bank just 

upstream from Shasta Lake, 0.3 mile downstream from Bollibokka Creek, and 11.5 miles 

east of LaMoine.

Drainage area.--606 sq mi.

Records available. October 1945 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 1,100 ft above mean sea level (levels by 

TJureau of Reclamation).

Average discharge.--6 years, 1,461 cfs.

Extremes.--Maximum discharge during year, 15,400 cfs Oct. 29 (gage height, 20.85 ft), from 

rating curve extended above 6,000 cfs by logarithmic plotting; minimum, 825 cfs Oct. 11-

1945-51: Maximum discharge, that of Oct. 29, 1950; minimum, 820 cfs Jan. 3, 1950. 

Remarks. Records excellent. Some very small diversions above station for domestic use.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

10.7

11

11.4

780

935

1,190

1,660

2,540

3,600

15 4,850

17 7,800

19 11,400

Discharge, in cubic feet 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.

830 

830

835

860

908

870

845

840

830

830

825

825

825

825

825

845

1,130

1,030

886

*860

850

840

835

850

1,590

2,040

2,760

7.220

10.800

9,650

4,270

58,859

1,899

116,700

Nov.

2,950 

2,410

2,110

1,900

1,740

1,600

1,500

1,430

1,350

1,290

1,250

1,230

1,220

1.200

1,380

4.220

4,040

3,710

3,420

3,220

3,230

2,750

2,400

2,170

2,010

1,980

1,860

1,790

1,700

1,790

-

64,850

2,162

128,600

Dec.

1,930 

1,850

2,070

2,500

2,460

2,460

3,070

4,670

5,110

4,300

3,680

3,420

3,130

4,330

10.600

6,720

4,690

3,790

3,300

2,970

2,690

2,490

2,320

2,200

2,090

1.990

1,910

1,820

1,770

1,730

l._680

99,740

3,217

197,800

Jan.

1,630 

1,600

1,590

1,650

1,630

1,580

1,540

1,520

1,520

1,640

1,970

1,920

1,750

1,670

1,740

1,800

2,500

5.640

2,750

2,280

2,150

1,990

1,960

2,030

2,130

2,170

2,190

2,140

2,010

1,890

1,810

60,390

1,948

119,800

Feb.

1,750 

1,720

1,770

3,000

4,540

3,670

3,480

3,640

3,440

3,490

6.980

6,500

*4,690

3,820

3,340

3,020

2,820

2,620

2,430

2,350

2,250

2,150

2,070

2,000

1,940

1,900

1,840

1,810

_

-

85,030

3,037

168,700

Mar.

1,760 

1,710

1,670

1,680

1,690

1,750

1,790

2,040

2.580

2,240

2,020

1,910

1,870

1,920

1,980

2,040

1,990

1,910

1,860

1,860

1,880

1,910

1,880

1,860

1,850

1,840

1,830

1,820

1,820

1,820

1,800

58,580

1,890

116,200

Apr.

1,760 

1,740

1,730

1,770

1,800

1,840

1,850

1,870

1,880

*1,920

1,920

1,900

1,890

1,900

1,890

1,880

1,870

1,850

1,800

1,760

1,720

1,690

1,660

1,650

1,600

1,580

1,590

1.960

1,800

1,660

-

53,730

1,791

106,600

May

1,600 

1,560

1,760

2,150

2.570

2,160

2,020

1,930

1,850

1,840

1,940

1,850

1,770

,720

,670

,640

,640

,620

,600

,570

,550

,530

,510

1,480

1,470

1,440

1,430

1,420

1,380

1,350

1.550

52,150

1,682

105,400

June

1.510 

1.280

1.270

1.260

1,270

1,260

1,250

1,220

1,210

1,200

1,190

1,180

1,180

1,160

1,160

1,170

1,160

1,160

1,160

1,140

1,140

1,130

1,120

1,110

1,110

1,110

1,100

1,100

1,090

1.080

-

35,280

1,176

69,980

July

1.080 

1,080

1,080

1,070

1,060

1,060

1,060

1,040

1,040

1,030

1,030

*1,030

1,030

1,020

1,020

1,020

1,010

1,010

1,010

1,010

1,010

1,000

1,000

996

990

990

984

979

974

974

974

31,661

1,021

62,800

Aug.

974 

968

968

968

968

962

962

957

957

957

*957

95.2

952

946

946

946

940

940

946

952

946

952

962

957

946

946

946

940

946

946

940

29,545

953

58,600

Sept.

955 

935

935

955

935

930

930

924

924

924

918

918

918

918

918

913

913

913

915

913

908

908

913

913

908

908

908

908

915

935

-

27,584

919

54,710

Calendar year 1950: Max 10,800 Min 825 Mean 1,608 Ac-ft 1,164,000

Water year 1950-51 : Max 10,800 Min 825 Mean 1,801 Ao-ft 1,304,000

(13.15 ft).

* Discharge measurement made on this day
348 SACRAMENTO RIVER BASIN

Shasta Lake near Reddiag, Calif.

Location. Lat 40°43', long. 122°25', in S? sec. 15, T. 33 N., R. 5 W., 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 1951.

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Bureau of RecTarnation). Prior to July 10, 1944, staff gages at various sites near dam at same datum.

Extremes. Maximum contents during year, 4,040,200 acre-ft May 26 (elevation, 1,049.17 ft); 

 minimum, 2,557,300 acre-ft Sept. 30 (elevation, 987.10 ft).

1942-51: Maximum contents, that of May 26, 1951; minimum, 1,960 acre-ft Dec. 21, 

1942 (elevation, 616.5 ft).

Remarks.--Reservoir is formed by concrete gravity-type dam completed in 1949; regulation 

or discharge from reservoir began Dec. 30, 1943. Usable capacity, 4,377,000 acre-ft 

between elevations 737.75 ft (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 

power plant at dam. Records including extremes, show total contents at 12 p.m.

Cooperation.--Record of contents at 12 p.m. furnished by Bureau of Reclamation.

Contents, in thousands of acre-feet, water year October 1950 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

Oct.

2,821.6

2,817.9

2,813.1

2,809.7

2,807.3

2,804.2

2,799.1

2,794.3

2,790.0

2,786.7

2,783.5

2,780.5

2,778.1

2,775.4

2,770.6

2,770.0

2,777.1

2,776.2

2,773.2

2,770.8

2,768.1

2,763.5

2,760.6

2,759.5

2,764.2

2,775.6

2,792.8

2,868.3

2,966.4

3,035.5

3,058.9

Nov.

3,075.2

3,085.3

3,093.9

3,102.7

3,109.7

3,114.1

3,117.1

3,120.1

3,121.7

3,121.5

3,127.8

3,127.8

3,129.4

3,130.4

3,139.9

3,182.7

3,213.2

3,242.5

'3,263.1

3,272.0

3,284.8

3,291.5

3,297.5

3,301.1

3,306.4

3,311.5

3,318.5

3,321.7

3,325.3

3,329.7

-

Dec.

3,333.3

3,341.3

3,361.6

3,379.2

3,393.9

3,311.4

3,436.4

3,473.7

3,505.3

3,524.7

3,534.5

3,527.9

3,509.3

3,512.0

3,515.1

3,490.7

3,453.7

3,413.8

3,379.7

3,352.0

3,336.0

3,329.2

3,323.6

3,316.6

3,309.6

3,302.8

3,294.9

3,288.1

3,279.0

3,273.7

3,267.9

Jan.

3,261.7

3,256.4

3,254.7

3,254.7

3,254.0

3,251.6

3,247.1

3,245.4

3,244.7

3,251.1

3,269.1

3,278.3

3,281.2

3,280.9

3,284.5

3,293.4

3,326.8

3,361.8

3,381.7

3,396.4

3,413.6

3,426.2

3,436.1

3,447.3

3,462.2

3,477.4

3,489.4

3,499.2

3,504.8

3,509.5

3,512.8

Feb.

3,516.3

3,518.4

3,519.6

3,561.6

3,611.2

3,633.8

3,637.4

3,642.3

3,644.6

3,652.1

3,700.2

3,719.8

3,709.1

3,688.7

3,657.3

3,618.9

3,578.2

3,533.5

3,496.2

3,470.7

3,458.2

3,449.0

3,443.1

3,437.1

3,430.7

3,425.7

3,418.5

3,412.4

_

_

-

Mar.

3,404.2

3,395.9

3,390.0

3,390.0

3,391.4

3,405.0

3,416.3

3,429.7

3,455.0

3,470.7

3,481.4

3,490.2

3,500.5

3,510.8

3,520.9

3,531.0

3,540.1

3,547.7

3,558.3

3,567.5

3,576.6

3,585.9

3,593.2

3,602.2

3,608.6

3,616.3

3,622.7

3,629.2

3,635.6

3,642.1

3,651.1

Apr.

3,658.9

3,667.9

3,677.0

3,686.4

3,696.6

3,706.5

3,716.9

3,723.2

3,731.1

3,742.4

3,752.9

3,762.1

3,772.5

3,782.0

3,787.3

3,793.9

3,801.9

3,809.8

3,817.7

3,821.7

3,827.6

3,828.4

3,830.5

3,833.4

3,836.6

3,838.7

3,843.8

3,853.7

3,854.2

3,854.2

May

3,856.4

,862.5

,872.1

,888.8

,903.6

,917.3

,930.6

,938.7

,947.9

,959.9

,970.0

,978.7

,987.2

,993.7

,001.1

,008.5

,014.3

,019. S

,025JO

,027.8

,030.5

,032.7

,034.6

,037.1

,039.1

,0"40.2

,036.9

,032.7

,029.4

,025.6

,023.1

June

4,019.8

4,017.0

4,013.7

4,007.2

4,001.1

3,997.0

3,990.7

3,982.8

3,975.1

3,966.2

3,959.9

3,952.3

3,944.9

3,937.9

3,930.6

3,921.6

3,911.4

3,903.6

3,895.5

3,888.5

3,881.0

3,873.7

3,864.4

3,852.1

3,844.6

3,837.1

3,828.1

3,819.3

3,810.3

3,800.8

-

July

3,787.8

3,778.3

3,768.0

3,756.1

3,744.8

3,734.5

3,720.1

3,707.8

3,692.6

3,678.1

3,662.7

3,645.2

3,628.9

3,609.9

3,589.9

3,572.1

3,555.3

3,537.3

3,518.4

3,498.2

3,476.4

3,455.2

3,436.4

3,416.3

3,397.6

3,379.2

3,361.3

3,340.1

3,318.3

3,299.0

3,279.7

Aug.

3,262.9

3,243.7

3,225.8

3,204.4

3,183.1

3,167.8

3,151.4

3,132.7

3,115.5

3,096.4

3,076.6

3,055.5

3,038.7

3,021.8

3,006.2

2,989.9

2,974.3

2,955.9

2,937.8

2,922.6

2,907.6

2,892.1

2,878.9

2,863.5

2,846.6

2,829.6

2,816.6

2,804.2

2,791.1

2,778.4

2,765.9

Sept.

2,753.1

2,738.1

2,725.4

2,714.0

2,705.9

2,697.9

2,690.6

2,680.0

2,669.6

2,661.2

2,655.0

2,649.8

2,645.6

2,639.4

2,632.1

2,624.9

2,619.7

2,615.6

2,611.3

2,606.3

2,603.1

2,595.4

2,588.7

2,583.8

2,580.1

2,576.0

2,572.1

2,568.7

2,562.2

2,557.3

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31. ...................

Calendar year 1950. ......

June 30 ..... ....... .

Sept. 30. ...................

Water year 1950-51. ......

Elevation 

(feet)

1,019.21

-

987.10

Contents 

(acre-feet)

3,267,900

-

2,557,300

Change In contents 

during month 

(acre-feet)

-61,800

+967,100

-222,300

-208,600

-271.900
SACRAMENTO RIVER BASIN 349

Sacramento River at Keswick, Calif.

Location.--Lat 40°36'10", long. 122 0 26'35", in NW^ 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, and 

10 miles downstream from Shasta Dam.

Drainage area. 6,710 sq mi, approximately, excluding Goose Lake basin. 

Records available.--October 1938 to April 1942, October 1942 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 479.81 ft above mean sea level, datum of 1929.

Prior to April 1942, at site 1.5 miles upstream. October 1938 to September 1939, 

datum of gage 500.0 ft above mean sea level. October 1939 to April 1942 at datum 5.0 

ft lower.

Average discharge. 11 years (1939-41, 1942-51), 7,253 cfs.

Extremes. Maximum discharge during year, 42,100 cfs Dec. 17 (gage height, 25.60 ft); mini-

 mum, 2,910 cfs Mar. 23.

1938-51: 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, 154 cfs May 15, 1948 

(gage height, 2.00 ft).

Remarks.--Records excellent. Flow regulated by Shasta Lake beginning Dec. 30, 1943 (see 

preceding page). Many diversions for irrigation above station. Discharge measurements 

generally made twice a month.

Cooperation. Twenty four discharge measurements furnished by Bureau of Reclamation.

Rating tables, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Nov. 17 to Dec. 8, Apr. 13-26)

Oct. 1 to Dec. 7

9.2 4,050

10.0 4,900

11.0 6,110

12.0 7,440

13.0 8,840

uec. o to Mar. 30

10.2 5,980

12.0 8,300

14.0 11,300

16.0 14,800

19.0 21,400

22.0 30,000

24.3 37,600

Mar. 31 to Sept. 30

8.9 3,960

10.0 5,080

12.0 7,540

14.0 10,700

15.5 13,600

Discharge, In cubic feet per second, water year October 1950 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.

5,170

5,200

5,180

5,180

5,180

5,220

5,170

5,170 

5,180

5,180

5,180

5,200

5,100

5,030

5,020

5,080

5,080

5,080

5,100

5,050

5,060

5,010

5,000

5,020

4,990

5,010

5,030

5,420

5,280

4,620

4,110

157,300

5,071

312,000

Nov.

4,090

,050

,070

,050

4,050

,090

,110

,100 

,090

,090

,110

,100

,130

,130

,140

6,550

6,690

8,390

8,390

8,590

8,360

8,060

8,280

7,860

6,030

6,110

6,180

6,110

6,140

6,190

-

169,330

5,644

335,900

Dec.

6,150

6,160

6,460

6,270

7,100

7,300

7,540

7,470 

13,200

12,600

15,600

21,900

26,200

27,300

35,700

37,500

37,300

36,100

31,700

26,800

20,000

13,600

12,600

12,600

12,700

12 , 400

12 , 100

12,100

12,200

10,200

10, 100

516,950

16,680

1P25.000

Jan.

10,200

10,900

8,220

8,260

8,200

8,200

8,220

8,220 

8,290

8,330

8,400

8,310

8,230

8,260

8,270

8,330

8,680

8,370

8,290

8,270

8,430

8,450

8,330

8,330

8,260

7,650

8,030

9,080

8,640

8,820

8,720

263,190

8,490

522,000

Feb.

8,620

9,370

8,370

9,260

9,070

9,970

19,300

19,300 

19,100

19,300

20,100

24,300

31,700

31,400

33,700

35,200

35 , 000

34,900

31,600

24,900

19,000

15,800

14,300

13,000

12,900

13,100

13,100

13,100

_

-

548,760

19,600

1088, 000

Mar.

13,000

13 , 000

11,200

10,200

9,310

8,440

8,360

7,360 

6,260

6,160

6,150

6,890

6,170

6,210

6,210

6,180

6,210

6,180

6,180

6,170

6,120

6,150

4,410

5,220

6,120

6,080

6,030

6,080

6,040

6,080

e3,980

218,150

7,037

432,700

Apr.

e4,000

e4,010

e ,000

e ,030

e ,000

e ,000

e ,000

e ,010 

e ,000

e ,000

e ,490

e ,530

,410

,410

,540

,530

,690

,360

,530

,250

,900

,960

,980

,000

6,080

6,230

6,700

6,700

6,700

6,400

-

148,440

4,948

294,400

May

5,990

5,680

5,530

4,850

4,560

4,390

4,380

4,360 

4,390

4,400

4,370

4,380

4,360

4,410

4,380

4,460

4,760

5,180

5,730

5,820

5,840

5,840

5,860

5,840

5,840

5,820

5,810

6,190

6,380

6,360

6,490

162,650

5,247

322,600

June

6,980

3,970

6,980

7,150

7,530

7,490

7,610

7,900 

7,930

7,920

7,920

7,920

7,930

7,930

7,990

7,920

7,890

7,960

8,000

8,140

8,140

8,180

8,170

8,140

8,180

8,210

8,310

8,460

5,460

8,440

-

236,750

7,892

469,600

July

8,440

8,650

9,190

9,490

9,540

9,510

9,520

9,490 

9,720

10,400

11,600

12 , 300

12,300

12,300

12,400

12,300

12,300

12,600

13 , 300

13,300

13,300

13 , 300

13,300

13 , 600

13,500

13,500

13,400

13,400

13,300

13 , 400

13,500

366,150

11,810

726,200

Aug.

12,300

12 , 800

12,800

12,800

12,800

12,800

12,800

12,700 

12,300

12,200

12,300

12,200

12,200

12 , 100

11,800

11,800

11,600

11,200

11,200

11,100

11,200

11,100

10 , 700

10,700

10,700

10,600

10,500

10,100

10,000

9,650

9,520

358,370

11,560

710,800

Sept.

9,040

9,030

9,000

9,010

8,020

7,960

7,500

7,120 

7,150

7,050

6,630

6,580

6,160

6,160

5,860

5,860

5,880

5,840

5,840

5,810

5,860

5,840

5,830

5,860

5,830

5,800

5,480

5,280

5,230

5,260

-

197,770

6,592

392,300

Calendar year 1950: Max 37,500 Mln 2,360 Mean 6,416 Ac-ft 4,644,000

Water year 1950-51: Max 37,500 Mln 3,980 Mean 9,161 Ac-ft 6,632,000

Stage-discharge relation Indefinite; discharge estimated on basis of flow through Keswick power-
350 SACRAMENTO RIVER BASIN

Clear Creek at French Gulch, Calif.

Location. Lat 40°41'40", long. 122°38'10", near north line sec. 27, T. 33 N., R. 7 W.,

 on right bank 1,200 ft downstream from Right Fork, 0,3 mile south of French Gulch, and

15 miles northwest of Redding. 

Drainage area. 106 sq mi.

Kecoras available. July 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,320 ft (from topographic map). 

EcEr'emes.--1950: Maximum discharge during period July to September, 46 cfs Sept. 18

 (gage height, 2.54 ft); minimum, 16 cfs Sept. 3,'4.

1950-51: Maximum discharge during water year, 3,540 cfs Oct. 29 (gage height, 7.87

ft); minimum, 5.0 cfs Sept. 21. 

Remarks.--Records good except those for period of shifting control, which are fair. No

large diversion above station.

Rating table, July 15, 1950, to Sept. 30, 1951 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Sept. 19 to Oct. 26, 1950)

1.9 

2.1 

2.4 

2.7 

3.0

40

76

126

6.0 

7.0

230

376

805

1,460

2,430

Discharge, In cubic feet per second, 1950-51 

1950

Day

1 

2 

3 

4 

5 

6 

7 

8

Ac -ft

July

'-

Aug.

23 

23 

24 

22 

24 

26 

?5 

25

Sept.

18 

19 

19 

16 

IS 

18 

19 

22

Day

9 

10 

11 

12 

13 

14 

15 

16

July

28 

Tf

Aug.

25 

24 

24 

23 

22 

23 

23 

23

Sept.

24 

28 

29 

28 

29 

29 

29 

29

Day

17 

18 

19 

20 

21 

22 

23 

24

July

26 

27 

27 

27 

26 

27 

27 

27

Aug.

22 

22 

20 

20 

20 

20 

19 

20

Sept.

36 

41 

35 

34 

30 

27 

25 

24

Day

25 

26 

27 

28 

29 

30 

31

July

26 

25 

24 

25 

25 

25 

Z3_

~

-

Aug.

20 

20 

20 

20 

19 

19 

!§.

1,340

Sept.

24 

24 

23 

22 

21 

20

25.5

1,520

Note.--Shifting-control method used Sept. 19-30.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

20

20

22

32

34

32

26

22

21

18

18

17

15

15

*15

15

27

29

24

22

20

19

19

20

54

242

257

1,010

1,860

1,330

504

5,779

186

11,460

Nov.

350

264

216

184

160

140

126

115

105

98

92

89

90

86

ITT

*887 "555

392

308

251

223

195

176

162

146

135

135

124

119

124

-

6,175

206

12,250

Dec.

*122

126

422

725

560

582

766

772

832

7?5

665

605

532

788

816

690

574

488

426

376

338

308

281

262

246

230

216

204

195

188

180

14,240

459

28,240

Jan.

172

170

168

170

162

154

148

TZ5

150

195

264

293

256

233

256

276

393

660

528

423

420

423

444

528

592

605

596

540

473

412

366

10,618

343

21,060

Feb.

332

323

360

1,360

1,960

1,310

1,100

1,030

902

896

1,110

1,060

890

756

670

600

552

500

455

437

409

386

360

338

323

308

293

*284

_

.

-

19,304

689

38,290

Mar.

273

262

251

256

248

243

238

235

259

246

235

230

240

264

284

299

267

262

267

281

278

262

251

246

243

235

230

228

223

2JL3^

7,836

253

15,540

Apr.

T5B~ 202

195

195

197

195

193

188

182

178

174

168

162

158

156

154

156

148

142

137

131

126

*122

122

121

T22" 119

199

158

140

-

4,835

161

9,590

May

130

130

332

856 */66

548

440

376

326

299

273

253

238

220

206

195

184

174

168

162

152

148

142

137

131

124

121

117

117

112

108

7,685

248

15,240

June

106 T0~2~

98

95

92

92

90

87

86

81

78

76

73

69

*63

61

58

56

54

52

52

55

52

50

49

47

45

42

43

41

-

2,045

68.2

4,060

July

37

38

39

4i

41

41

38

34

32

31

30

29

29

29

27

25

23

23

22

22

21

20

20

20

20

20

19

18

18

18

18

843

27.2

1,670

Aug.

16

14

15

15

15

14

14

14

14

12

12

12

11

12

11

11

10

TO

12

14

13

13

17

20

T5

16

14

14

15

17

*17

433

14.0

859

Sept.

17

16

15

14

14

13

13

13

13

12

11

10

9.5

9.5

9.0

9.0

9.0

9.5

10

9.0

8.0

570

8.0

8.5

9.0

10

10

11

14

20

-

342.0

11.4

678

Calendar year 1950: Max - Mln - Mean - Ao-ft -

Water year 1950-51: Max 1,960 Mln 8.0 Mean 220 Ao-ft 158,900

Peak discharge (base, 900 cfs). --Oct. 29 (9:30 p.m.) 3,540 cfs (7.87 ft); Nov. 16 (9 a.m.) 1,070

cfs (5.45 . ftj; Feb. . 4 (12 p.m.) . 2,430 cfs (7.00 ft); Feb. 11 (6:30 p.m.) 1,160 cfs (5.58 ft); May 4

(5 p.m.) 1,020 cfs (5.36 ft).

* Discharge measurement made on this day. 

Note.--Shifting-control method used Oct. 1-26.
SACRAMENTO RIVER BASIN 351

Clear Creek near Igo, Calif.

Location. Lat 40°30'50", long. 122°31'20", in NE^NE^ 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 9 miles upstream from mouth.

Drainage area.--231 sq mi.

Records available.--October 1940 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 700 ft (from topographic map).

Average discharge.--11 years, 366 cfs.

Extremes.--Maximum discharge during year, 6,740 cfs Oct. 29 (gage height, 8.13 ft); minimum, 16 cfs Sept. 24.

1940-51: Maximum discharge, 19,200 cfs Mar. 1, 1941 (gage height, 12.2 ft), from 

rating curve extended above 12,000 cfs on basis of velocity-area studies; minimum, 8.6 

cfs Sept. 4, 6, 7, 1950.

Maximum stage known, about 13 ft in February 1940, from information by local residents.

Remarks.--Records good. Small diversions above station.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 30 to Sept. 30

2.1 

2.3 

2.6 

2.9 

3.2

76

143

237

3.5 360

4.0 640

5.O 1,4OO

6.0 2,570

7.0 4,220

2.1 16

2.3 33

2.6 76

2.9 147

3.2 246

3.5 375

4.0 670

5.0 1,480

6.0 2,680

7.0 4,240

Discharge, In cubic feet per second, water year October 195O 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.

18

18

20

26

38

39

35

31

27

25

25

24

*23

24

25

31

108

56

45

40

38

35

35

35

76

388

477

2,730

5.590

2,740

945

11,565

373

22,940

Nov.

650

469

370

312

270

235

207

187

171

159

150

147

155

150

334

*2.550

1,110

858

638

534

464

405

361

329

299

278

282

258

246

270

-

12,806

427

25,400

Dec.

266

306

1,560

1,600

1,150

1,120

1,320

1,400

1,660

1,400

1,580

1,200

1,150

2.220

2,080

1,500

1,220

1,010

894

775

691

618

560

516

480

447

420

595

575

566

347

50,406

981

60,310

Jan.

329

325

329

329

316

299

286

282

290

553

915

754

598

522

546

653

,520

,590

* ,210

936

,390

,370

,230

,540

,290

1,210

1,150

1,010

887

782

698

24,979

806

49,550

Feb.

624

612

700

2,550

5,550

2,330

1,870

1,690

1,480

1,500

2,460

2,110

1,690

1,440

1,280

1,150

1,050

958

873

852

796

747

705

657

624

605

572

540

_

-

-

35,995

1,286

71,400

Mar.

516

498

469

522

528

729

658

681

775 638"

572

528

510

510

528

534

516

480

452

447

464

458

436

410

405

395

580

*566

561

557

545

15,446

498

30,640

Apr.

529

516

308

312

312

308

308

299

290

286

278

270

262

258

258

246

262

246

235

224

214

207

*205

203

200

197

203

398

278

255

-

7,945

265

15,760

Calendar year 1950: Max 3,390 Mln 9.0 Mean 299

May

224

221

586

1,600

1,330

950

768

650

560

534

486

442

415

380

352

329

512

295

282

270

258

242

235

228

217

207

197

190

187

180

174

13,301

429

26,380

June

168

162

159

155

147

147

144

142

156

131

128

125

120

113

110

108

105

96

92

88

90

92

90

86

82

78

76

71

69

69

-

5,575

112

6,690

July

64

62

64

66

68

64

64

56

55

49

48

46

48

46

45

44

41

39

38

37

37

35

54

53

33

32

32

31

31

z&

29

1,398

45.1

2,770

Aug.

28

27

25

26

26

26

25

25

24

25

22

22

22

22

22

21

2°

20

20

22

22

22

23

27

28

26

22

22

*22

25

27

734

23.7

1,460

Sept.

27

26

24

23

22

22

22

20

20

20

18

18

18

17

17

17

18

18

19

19

19

17

17

16

17

17

18

19

21

28_

-

594

19.8

1,180

Ac-ft 216,600

Water year 1950-51: Max 3,530 Mln 16 Mean 434 Ao-ft 314,500

Peak discharge (base, 5,6OO cfs). Oct. 29 (8 p.m.) 6,740 cfs (8.13 ft); Nov. 16 (5 a.m.) 3,99O cfa 

(6.86 ft); Feb. 4 (10:30 p.m.; 4,35O cfs (7.O6 ft). 

* Discharge measurement made on this day.
352 SACRAMENTO RIVER BASIN

Cow Creek near Millvllle, Calif.

Location. Lat 40°30', long. 122°14', in N¥i sec. 32, T. 31 N., R. 3 W., on right bank 

3 miles downstream from Littje Cow Creek and 4.5 miles southwest of Millville.

Drainage area.--427 sq mi.

Records available. October 1949 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 400 ft (from topographic map).

Extremes. Maximum discharge during year, 15,600 cfs Dec. 14 (gage height, 14.26 ft); mlnimum, 11 cfs Aug. 1.

1949-51: Maximum discharge, 22,500 cfs Feb. 6, 1950 (gage height, 16.48 ft); minimum, 6.0 cfs Sept. 5, 1950.

Remarks. Records good. Numerous small diversions above station for irrigation.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

Oct. 1 to Nov. 18 Nov. 18 to Sept. 30

2.4 

2.8 

3.2 

3.6

133

230

4.0 

5.0 

6.0 

8.0

365

860

1,490

3,520

Note. Same as following 

table above 8.0 ft.

2.0 

2.2 

2.4 

2.8 

3.2

103

181

3.6 

4.0 

5.0 

6.0 

7.0

295

445

955

1,610

2,460

8.0

10.0

12.0

3,520

6,500

10,300

Discharge, In cubic feet per second, water year October 1950 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.

27

27

28

44 

52

112

86

68

62

59

53

55

52

*48

48

56

84

91

78

72

72

72

72

75

106

455

539

646

6,400

1,880

414

11,933

385

23,670

Nov.

294

239

190

166 

154

144

137

125

116

116

114

116

125

180

182

1,980

*2,350

5,140

1,250

1,260

1,860

994

715

560

472

413

413

421

373

506

-

21,105

704

41,860

Dec.

703

643

9,030

3,700 

1,620

2,180

4,400

4,180

3,680

1,830

2,720

1,950

1,380

9,540

2,926

1,800

1,330

1,090

944

834

735

665

610

565

526

494

463

437

417

155

437

62,248

2,008

123,500

Jan.

385

373

437

1,390 

920

650

555

535

675

3,980

4,630

1,920

1,140

900

1,590

1,740

5,480

3,630

2,100

1,380

2,420

6,060

3,400

2,250

1,690

1,370

1,170

1,030

*906

757

710

56,173

1,812

111,400

Feb.

660

645

1,610

9,290 

7,510

2,720

2,040

1,710

1,450

1,520

3,180

2,560

1,690

1,380

1,200

1,060

1,070

1,040

872

960

1,340

994

884

768

725

768

746

762

_

_

-

51,154

1,827

101,500

Mar.

690

630

585

2,450 

2,250

1,950

1,720

1,510

2,760

1,850

1,030

900

823

796

757

730

670

625

605

585

580

570

*530

512

512

504

481

476

472

463

441

29,437

950

58,390

Apr.

433

433

417

417 

421

425

433

441

445

476

504

494

494

512

508

504

508

499

472

441

417

397

381

377

369

358

362

834

635

481

-

13,888

463

27,550

May

425

*405

646

1,000 

842

966

762

625

540

522

595

517

481

441

401

385

369

354

340

323

302

285

278

265

244

232

221

205

200

188

177

13,536

437

26,850

June

166

157

147

137 

137

135

141

132

125

119

119

114

101

95

95

95

92

*90

81

74

77

79

76

74

74

73

63

60

55

57

-

3,040

101

6,030

July

55

52

52

51 

51

42

51

56

He

50

47

50

45

40

38

36

36

34

31

33

35

33

28

29

27

21

28

27

32

28

26

1,220

39.4

2,420

Aug.

19

19

17

20 

28

30

28

24

21

18

21

26

22

16

18

n

20

26

31

24

22

24

30

33

32

30

27

21

25

33

32

754

24.3

1,500

Sept.

33

33

25

28 

*25

23

25

31

29

30

30

26

31

28

29

27

35

29

26

27

33

34

35

35

32

31

27

23

34

43

-

897

29.9

1,780

Calendar year 1950: Max 11,300 Mln 11 Mean 719 Ac-ft 520,900

Water ater year year 1950-51: 1950-51: Max Max 9,540 9,540 Mln Mln 16 16 Mean Mean 727 727 Ac-ft Ac-ft 526,400 526,400

Peak discharge (base, 6,000 cfs). Nov. 16 (2 a.m.) 12,600 cfs (15.06 ft); Dee. 5 (5 p.m.) 15,600 

fs (13.54 ft); Dec. 7 (9 p.m.) 6,300 cfs (9.89 ft): Dec. 14 (lo a.m.) 15,600 cfs (14.26 ft); Jan. 11 

12:30 p.m.) 8,540 cfs (11.12 ft); Jan. 17 (10 a.m.) 8,320 cfs (11.01 ft); Jan. 22 (7 a.m.) 7,440 cfs

1O.S2 ft.): Ff>h. 5 (7,-7,n a m.\ 1 3 - Qnn r-fa M * ^.R f 1- \

\.LC;~HJ p.m.; o,o*tu UIB V.L.L..L£ It J; Jan. j. / \iu a.m. 

(10.52 ft); Feb. 5 (3:30 a.m.) 13,900 cfa (13.58 ft 

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 353

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 

Dame z miles east of Cottonwood and 2.4 miles upstream from mouth.

Drainage area.--945 sq mi.

Records available.--October 1940 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 370 ft {from river-profile map).

Average discharge. 11 years, 740 cfs.

Extremes. Maximum discharge during year, 18,200 cfs Dec. 14 (gage height, 10.31 ft); from 

rating curve extended above 2,800 cfs; minimum, 41 cfs Sept. 18, 19, 20.

1940-51: Maximum discharge, 52,300 cfs Mar. I, 1941 (gage height, 15.4 ft), from 

rating curve extended above 30,000 cfs; minimum, 15 cfs on several days during September 

1945.

Remarks.--Records good except those above 5,000 cfs, which are fair, and those for period 

of no gage-height record, which are poor. Small diversions above stations.

Rating tables, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1-28)

Oct. 1 to Dec. 3 Dec. 4 to Sept. 3O

1.2 

1.5 

1.8 

2.2 

2.6

178

354

600

3.0 

4.0 

5.0 

6.0 

7.5

900 

1,750 

2,800 

4,1OO 

7,140

1.4 

2.0

102

192

348

2.6 

3.2 

4.0 

5.0

600

1,000

1,620

2,520

6.0

7.0

8.5

10.0

3,8OO

5,860

10,200

16,700

Discharge, in cubic feet per second, water year October 195O to September 1951

Day

1

2

3

4

5

e

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.

85

76

70

72

99

110

121 

130

118

76

55

51

53

*58

63

87

130

130

103

108

108

101

94

99

127

182

240

1,410

2,610

3,860

1,490

12,116

391

24,030

Nov.

1,020

860

685

586

510

447

405 

359

325

275

244

222

222

231

218

1,010

1.250

876

844

708

798

722

600

510

447

405

385

374

354

354

16,226

541

32,180

Dec.

374 385"

6,460

8,780

*3,100

2,410

3,400 

3,370

3,330

2,390

2,530

2,280

1,830

1O.9OO

5,920

3,120

2,250

1,820

1,560

1,370

1,200

1,070

979

909

839

783

734

690

666

642

624

76,715

2,475

152,200

Jan.

600

585

585

590

575

555

540 

525

525

1,040

1,350

1,320

909

762

755

853

1,690

2,820

2,530

1,840

2,740

14,000

9,990

7,950

5,360

3,660

3, OOO

2,520

2,100

1,750

1,540

75,559

2,437

149,900

Feb.

1,360

1,300

1,400

7,OOO

8.000

5,000

3,500 

3,000

2,500

2,500

4,500

4,000

3,300

2,8OO

2,500

2,200

2,000

1,8OO

1,600

1,500

1,400

1,300

1,200

1,100

1,000

*970

951

909

_

-

70,590

2,521

140,000

Mar.

874

825

776

860

1,030

1,030

1,150 

923

1,100

902

811

769

748

748

755

783

769

727

702

684

684

672

648

624

612

6OO

585

574

565

520

492

23,543

759

46,700

Apr.

480

460

464

440

436

436

436 

432

424

420

420

409

406

413

413

406

406

406

391

377

366

348

345

*342

348

342

348

452

484

402

12,252

408

24,300

May

373

362

525

1,450

1,100

846

734 

648

612

590

575

545

525

492

464

424

416

402

398

388

377

366

362

355

348

342

332

319

313

300

284.

15,547

502

30,840

June

276

264

251

244

239

230

222

216

212

206

196

198

190

181

176

174

169

160

152

150

150

148

132

121

121

131

121

*104

loo

94

5,328

178

10,570

July

96

94

90

94

97

95

94 

92

~95 loo

78

74

67

68

66

68

61

62

66

65

65

67

69

70

64

63

59

58

56

48

45

2,286

73.7

4,530

Aug.

45

49

50

46

48

56

58 

60

62

64

54

50

47

45

46

47

53

46

46

50

47

52

56

63

67

68

67

61

58

58

58

1,677

54.1

3,330

Sept.

56

56

64

59

59

60

*64 

61

64

67

62

53

56

57

54

52

50

45

45

42

46

50

52

58

60

63

66

66

64

64

-

1,715

57.2

3,400

Calendar year 195O: Max 1O,9OO Mln 43 Mean 624 Ac-ft 452,000

Water year 1950-51: Max 14,OOO Mln 42 Mean 859 Ac-ft 622, OOO

Peak discharge (base, 6.9OO cfs).--Dec. 4 (1:5O a.m.) 14,60O efs (9.55 ft); Dee. 14 (1 p.m.) 18,2OO 

cfs (10.31 ft); Jan. 22 (1 p.m.) 17,4OO cfs (1O.15 ft)j Feb. 4 or 5 (time and discharge unknown).

* Discharge measurement made on this day.

Note.--Ho gage-height record Feb. 2-26; discharge estimated on basis of weather records and records 

for Clear Creek near Igo.
SACRAMENTO CREEK BASIN

Battle Creek near Cottonwood, Calif.

Location. Lat 40°24', long. 122°08', in N¥£ sec. 6, T. 29 N., R. 2 W., on left tank 

3 miles upstream from mouth and 9 miles east of Cottonwood.

Drainage area. 362 sq mi.

Records available.--October 1940 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 421.47 ft above mean sea level (levels by 

Bureau of Reclamation).

Average discharge.--11 years, 454 cfs.

Extreme s. - -Maximum discharge during year, 5,950 cfs Dec. 14 (gage height', 7.94 ft); mini- 

 mum, 115 cfs Oct. 2.

1940-51: Maximum discharge, 12,800 cfs Feb. 6, 1942 (gage height, 11.85 ft), from 

rating curve extended above 10,000 cfs; minimum not determined; minimum gage height, 

1.20 ft June 25, 1949.

Maximum stage known, 15.8 ft,"from floodmarks, Dec. 11, 1937 (discharge, 35,000 cfs, 

by slope-area method).

Remarks.--Records good. Flow regulated by four small power plants and several small reservoirs above station. About 10 cfs diverted above station for irrigation.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Dec. Dec. 4 to Sept. 30

2.5 155

3.0 298

5.5 467

4.0 690

4.5 

5.0 

6.0 

7.0

970

1,380

2,750

4,350

2.4 

3.0 

3.5

160

320

497

4.0 

4.5 

5.0

730

1,020

1,420

5.5 1,980

6.0 2,750

6.5 5,550

Discharge, In cubic feet per second, water year October 1950 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.

180

186

188

188 

197

254

211

188

197

186

183

188

183

*175

172

183

184

186

183

180

180 

172

188

183

191

411

442

486

501

634 3"4S

7,505

242

14,890

Nov.

282

261

237

237 

231

237

225

222

214

208

194

'2752

214

773

356

1,380

501

735

657

1,310

1.720 

655

460

404

360

346

356

333

317

529

14,156

472

28,080

Dec.

400

Sift

5.100

1,190 

*650

975

1,420

1,470

1,370

852

1,080

852

720

3,040

1,130

834

695

630

585

540

497

477

453

451

420

417

400

403

400

400

400

26,771

864

53,100

Jan.

379

383

458

561 

442

403

376 38"9

393

816

1,250

650

493

446

858

612

558

779

635

576

2,390 

5.120

1,090

846

756

660

612

562

554

*501

477

22,985

741

 45,590

Feb.

475

469

575

2,050 

'1,580

1,050

912

876

796

768

1,250

1,290

906

807

730

695

660

640

603

612

758 

640

655

562

544

531

510

501

_

_

-

22,406

800

44,440

Mar.

481

477

457

465 

514

465

442

424

461

438

413

^ST

427

431

446

442

435

424

427

442

438 

442

435

431

435

438

431

431

427

429

417

13,692

442

27,160

Apr.

410

410

420

417 

*424

413

424

451

458

465

481

485

481

497

495

497

501

495

477

469

457 

442

435

420

417

413

406

¥97

497

431

-

13,541

451

26,860

May

420

*420

453

510 

465

473

442

427

417

420

BTB" 554

465

438

417

420

438

450

450

450

442 

442

446

424

413

431

450

450

424

400

579

13,748

443

27,270

June

359

346

336

346 

342

339

326

311

302

299

299

296

296

302

305

514

514

*505

502

299

296 

293

284

284

278

278

?6~9~ 269

269

269

-

9,127

304

18,100

July

260

263

254

254 

254

246

232

229

232

227

224

219

219

211

209

211

211

206

214

209

209 

199

206

204

199

199

196

196

194

201

199

6,786

219

13,460

Aug.

196

T55

192

187 

187

*196

194

189

192

192

189

182

196

189

184

187

182

178

T52

194

187 

194

192

187

182

180

187

182

182

184

187

5,821

188

11,550

Sept.

184

178

184

196 

T54

184

182

180

178

187

182

182

180

182

182

175

T87

180

178

182

182 

182

175

189

180

180

182

180

182

175

-

5,454

182

10,820

Calendar year 1 950 : Max 5,600 Mln 153 Mean 446 Ac-ft 323,000

Water year 1950-51 : Max 3,120 Mln 172 Mean 444 Ac-ft 321,300

Peak discharge (base, 2,500 cfs ). No 

 cfs(6.25 ft); N

14 (1:30 a.m.) 2,720 cfs (5.98 ft); Nov. 16 (6 a.m.) 3,150

3:30 a.m.; 2,800 cfs (6.03 ft); Dec. 3 (3 p.m.) 4,720 cfs (7.22 ft); Dec. 14 

7.94 ft); Jan. 22 (2 a.m.) 5,930 cfs (7.93 ft); Feb. 4 (4:30 p.m.) 3,740 cfs 

62 ft). 

Discharge measurement made on this day.

. ; o. : .

(7:30 a.m.) 5,950 cfs (7.94 ft); Jan. 22 (2 a.m.) 5,930 cfs (7.93 ft); Feb. 4 (4:30 p 

(6.
SACRAMENTO RIVER BASIN 355

Paynes Creek near Red Bluff, Calif.

Location. Lat 40°16', long. 122°11', in NE£ sec. 22, T. 28 N., R. 3 W., on right bank 0.8 

mile upstream from mouth and 7 miles northeast of Red Bluff.

Drainage area.--98.5 sq mi.

Records available. October 1949 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 360 ft (from topographic map).

Extremes.--Maximum discharge during year, 2,830 cfs Jan. 22 (gage height, 7.40 ft), from 

rating curve extended above 1,200 cfs by logarithmic plotting; no flow during several 

months.

1949-51: Maximum discharge, 4,590 cfs Feb. 4, 1950 (gage height, 7.93 ft), from 

rating curve extended above 420 cfs by logarithmic plotting; no flow at times each year.

Remarks.--Records good except those above 2,500 cfs, which are fair. Some diversions above 

station for irrigation.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.7

1.8

1.9

2.0

2.1

2.2

.1

.3

.6

1.1

1.8

2.3

2.4

2.5

2.6 

2.8 

3.0

3.3 

3.6 

4.0 

5.0 

6.0

144

233

385

870

1,580

Discharge, in cubic feet per second, water year October 1950 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.

0.2

. 2

.4 

.4

.5

.6

.4

.4

.4

.4

.4

*.4

.5

.4

.5

.5

.8

.5

.5

.6

.6

.6

.6

.7

.8

70

62

14

14

"27 134

333.3

10.8

661

Nov.

18

14

12 

11

10

10

9.4

8.7

8.0

8.0

8.0

8.7

16

232

*45

153. 

210

207

188

326

447

162

94

64

50

44

46

46

38

61

-

3,154.8

105

6,260

Dec.

46

131

1,410 

556

240

332

502

480

452

240

331

286

200

1,030

381

236 

165

126

102

85

72

61

55

49

45

42

39

36

34

33

51

7,828

253

15,530

Jan.

30

29

3T

64

52

42

39

37

37

435

820

365

207

149

413

*403 

337

361

294

213

1,140

1.500

552

369

279

213

185

142

126

106

94

9,064

292

17,980

Feb.

83

7678- 

499

452

279

210

167

142

132

452

641

309

226

179

149 

137

139

113

104

160

147

*191

130

112

98

90

81

_

-

5,576

199

11,060

Mar.

IS.

69

62 

61

61

60

56

54

54

52

50

48

46

45

44

41 

37

36

36

34

34

33

33

33

33

31

31

So- 30

so

30

1,370

44.2

2,720

Apr.

30

30

30 

29

30

28

24

24

24

20

16

18

14

6.8

8.0

8.0 

7.4

6.8

6.4

6.4

6.4

6.8

6.8

6.0

5.6

5.6

6.0

12

10

*8.0

-

440.0

14.7

873

May

8.7

7.4

14 

41

34

22

18

16

12

9.4

12

14

10

9.4

8.7

6.8 

6.8

6.4

6.0

6.0

5.6

5.2

5.2

4.9

4.6

4.6

4.3

4.3

4.0

473

4.0

319.6

10.3

634

June

3.0

3.2

§76

2.8

3.0

2.8

2.4

2.3

2.2

2.0

2.0

1.9

1.9

1.6

.5 

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

**o"0

0

0-

46.1

1.54

91

July

0

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

.7

.2

.1

.2

.3

.2

.2

.4

.4

.4

.4

3.5

0.11

6.9

Aug.

0.4

.4

.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

1.0

0.03

2.0

Sept.

(*)

-

0

0

0

Calendar year 1950: Max 3,720 Mln 0 Mean 90.5 Ac-ft 65,520

Water year 1950-51: Max 1,500 Mln 0 Mean 77.1 Ac-ft 55,820

Peak discharge (base. 1.600 cfs). Nov. 16 (11:30 a.m.) 1,680 cfs (6.12 ft); Dec. 3 (4 p.m.) 1, 

cfs (6.39 ft); Dec. 14 (8 a.m.) 2,260 cfs (6.81 ft); Jan. 22 (2 a.m.) 2,830 cfs (7.40 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.
356 SACRAMENTO RIVER BASIN

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 

(revised) northeast of Red Bluff.

Drainage area. 9,300 sq mi, approximately, excluding Goose Lake basin. 

Records available.--April 1895 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 252.6 ft above mean sea level (from riverprofile survey). 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.--56 years, 11,040 cfs.

Extremes. Maximum discharge during year, 70,100 cfs Dec. 14 (gage height, 16.16 ft); mini-

 mum, 4,190 cfs Sept. 28, 29 (gage height, 0.96 ft).

1895-1951: Maximum discharge, 291,000 cfs Feb. 28, 1940 (gage height, 38.9 ft), from 

rating curve extended above 200,000 cfs by logarithmic plotting and on basis of velocityarea 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. 348). 

Many diversions above station for irrigation.

Revisions (water years). W 861: 1904, 1907, 1909, 1914-15, 1927-28.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

1.3 

2.0 

3.0 

5.0

4,870

6,470

9,150

15,300

7.0

9.0

11.0

13.7

22,400 

31,000 

40,8OO 

55,100

Discharge, In cubic feet per second, water year October 1950 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.

5,280

5,300 

5,280

5,340

5,480

5,590

5,570

5,500

5,480

5,370

5,340

5,300

*5,210

5,150

5,150

5,260

5,450

5,570

5,450

5,430

5,390

5,390

5,370

5,370

5,520

6,850

8,050

8,840

13,200

18,100

*9,010

198,590

6,406

393,900

Nov.

6,900

6,300 

5,840

5,590

5,410

5,280-

5,210

5,120

5,020

4,950

4,910

4.890

5,000

6,120

5,450

11,900

14,400

18,200

13,400

12,700

15,100

12,000

10,900

10,400

8,670

7,860

7,830

7,860

7,640

7,750

248,600

8,287

493,100

Dec.

8,930

8,550 

28,100

32,100

16,500

*15,400

21,200

21,900

26,300

22,000

23,300

28,800

31 , 900

54,600

51,000

49,600

47,500

45,800

40,900

* 36, 000

28,100

20,700

16,500

16,100

16,000

15,700

14,900

14,700

14,700

13,500

12,500

793,780

25,610

1,574, 000

Jan.

12,300

12,600 

11,500

 11,500

11,300

10,500

10,200

10,200

10,400

17,100

21,900

16,500

13,100

11,900

13,500

14,000

22,000

22,200

18,300

15,000

21,200

41.200

28,100

23,100

19,500

16,800

15,400

15,700

14,700

14,100

13,300

509,100

16,420

USD ,000

Feb.

12,700

12.600

30^100

47,800

26,100

29,200

29,900

28,200

27,200

31,300

39,000

41,800

41,200

40 , 800

43,400

42,900

42,800

41,200

33,300

28,000

22,200

20,500

17,700

17,100

16,800

17,100

16,800

_

-

810,800

28,960

1,608,000

Mar.

16,600

16,200 

15,100

14,500

*17,500

14,900

17,700

13,200

15,400

12,000

10,600

10,400

9,810

9,580

9,490

9,400

9,260

9,070

8,930

8,810

8,810

8,790

7,730

7,640

7,670

8,350

8,290

8,210

8,240

8,180

7_,_29Q

337,650

10,890

669,700

Apr.

6.000

5,800 

5,750

5,610

5,570

5,520

5,570

5,520

5,500

5,520

5,640

6,030

5,960

6,030

6,080

6,340

6,470

6,080

5,930

6,320

6,930

7,240

7,240

7,160

7,160

*7,190

7,670

8,930

9,150

8,400

-

194,310

6,477

385,400

May

7,670

7,160 

7,73O

9,860

10,400

8,840

8,350

7,620

7,140

7,010

7,210

7,030

6,800

6,620

6,340

6,170

6,200

6,620

7,010

7,290

7,270

7,210

7,240

7,210

7,110

7,060

7,030

7,110

7,400

7,350

7,240

228,300

7,365

452,800

June

7,620

7,730 

7,730

7,730

8,130

8,270

*8,180

8,480

8,540

8,510

8,510

8,460

8,430

8,400

8,400

8,400

8,400

8,370

8,430

8,350

8,560

8,540

8,560

8,510

8,510

8,480

8,540

8,700

8,670

8,650

-

250,790

8,360

497,400

July

8,670

8,670 

9,180

9,660

9,750

9,720

9,720

9,720

9,720

10,100

11,000

12,000

12,100

12,200

12,100

12,200

12,100

12,100

12,800

13,000

13,000

13,000

13,000

13,000

15,500

13,100

13,300

13,000

13,100

13,000

13,100

360,410

11,630

714,900

Aug.

15 . 100

12, 'soo

12,500

12,500

*12,500

12,500

12,500

12,200

12,100

12,000

12,100

12,100

12,100

11,700

11,600

11,500

11,200

11,100

11,100

11,100

11,100

10,800

10,800

10,700

10,700

10,700

10,100

10,200

9,920

9,840

356,760

11,510

707,600

Sept.

9,210

9,260 

9,260

9,150

8,760

8,210

7,830

7,350

7,270

7,270

6,820

6,700

6,400

6,220

5,860

5,750

5,750

5,750

5,700

5,610

5,680

5,700

5,700

5,730

5,750

5,700

5,680

5,080

5,190

5.170

199,510

6,650

395,700

Calendar year 1950: Max 54,600 Min 3,7OO Mean 9,037 Ac-ft 6,542,500

Water year 1950-51: Max 54,6OO Mln 4,890 Mean 12,300 Ac-ft 8,902,000

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 357

Antelope Creek near Red Bluff, Calif.

Location.--Lat 40°12', long. 122°07', in SE-j sec. 7, T. 27 N. , R. 2 W. , on right bank 

fcj miles upstream from mouth and 6 miles east of Red Bluff.

Drainage area. 124 sq mi.

Records available.--October 1940 to September 1951.

Sage. Water-stage recorder. Altitude of gage is 340 ft (from topographic map).

Average discharge. 11 years, 140 cfs.

Extremes. Maximum discharge during year, 4,180 cfs Jan. 21 (gage height, 9.35 ft); mini- 

 mum, 21 cfs Oct. 16.

1940-51: Maximum discharge, 10,400 cfs Feb. 6, 1942 (gage height, 13.9 ft); minimum, 14 cfs Oct. 1, 1940.

Flood of December 1937 reached a stage of about 22 ft, from floodmarks.

Remarks --Records fair. Small diversion above station for Red Bluff water supply during 

uctooer to June of each year.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Jan. 21 Jan. 22 to Sept. 30

2.8 26

3.0 39

3.3 73

3.6 134

4.0 253

4.5 432

5.5 880

6.5 1,530

2.8 

3.0 

3.3 

3.6 138

4.0 257

5.0 635

6.0 1,180

7.0 1,920

Discharge, In cubic feet per second, water year October 1950 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.

29

27

TJS

29

31

37

33

31

31

30

31

31

*30

30

30

27 

36

33

31

31

31

31 

31

33

36

117

122

76

203

276 ~87J

1,652

53.3

3,280

Nov.

59

54

46

44

43

42

41

40

40

40

39

35

52

156

*85

1,110 

284

410

322

529

770

298 

177

129

106

94

90

90

82

94

-

5,405

180

10,720

Dec.

90

124

1,160

579

304

350

459

556

679

402

470

373

280

1,070

508

354 

273

220

186

166

142

127 

108

100

92

87

80

75

72

75

73

9,632

311

19,100

Jan.

69

66

67

85

75

69

66

65

¥5

191

*480

304

177

134

504

*418 

395

488

354

260-

1,380

1,810 

612

414

317

257

219

191

174

152

133

9,991

322

19,820

Feb.

121

114

T2T

432

770

500

381

324

280

264

819 Ti?

455

352

293

251 

225

222

191

177

213

219 

203

177

162

149

143

131

_

_

-

8,431

301

16,720

Mar.

124

114

110

112

*119

114

114

112

126

T5T

114

110

110

112

116

119 

116

112

108

106

106

106 

104

99

99

99

95

93

91

93

90

3,364

109

6,670

Apr.

88

86

15S

88

93

95

99

106

110

119

128

131

136

141

TIT

141 

138

131

121

116

112

106 

101

97

95

91

90

141

116

*97

-

3,340

111

6,620

May

91

88

110

257

18Z

157

143

131

124

121

146

149

133

126

116

114

114

114

112

110

106

101 

99

97

93

90

88

84

81

76

7j2

3,625

117

7,190

June

75

70

69

68

66

65

63

62

60

57

56

54

52

49

47

46 

46

44

42

41

41

41 

41

41

40

39 *59"

39

39

39

-

1,531

51.0

3,040

July

38 55"

37

37

37

37

36

36

35

35

35

35

35

35

35

34 

34

33

33

32

32

32 

32

32

32

32

32

31

3T

31

31

1,055

34.0

2,090

Aug.

31

31

31

31

31

31

31

32

31

31

31

31

31

31

31

31 

30

3T

31

32

34

34

33

32

31

31

31

32

32

33

978

31.5

1,940

Sept.

33

32

32

32

32

32

32

*32

32

32

32

33

33

33

33

33

34

34

34

34

34

33 

33

34

34

34

34

34

35

55

-

994

33.1

1,970

Calendar year 1950: Max 3,610 Mln 27 Mean 136 Ac-ft 98,540

Water year 1950-51: Max 1,810 Mln 27 Mean 137 Ac-ft 99,160

Peak discharge (base, 2,020 ofa). Nov. 16 (8:30 a.m.) 3,740 cfs (8.95 ft); Dec. 14 (5:30 a.m.) 

2,530 cfs (7.74 ft); Jan. 21 (12 p.m.) 4,180 cfs (9.35 ft).

* Discharge measurement made on this day.

Note. No gage-height record Aug. 21 to Sept. 7; discharge estimated on basis of range In stage 

and records for Mill Creek near Los Molinos.

256498 O - 53 - 24
358 SACRAMENTO CREEK BASIN

Mill Creek near Los Molinos, Calif.

Location. Lat 40°03'20", long. 122°01'15", in Nj sec. 6, T. 25 N., R. 1 W., on right bank 

t> miles upstream from mouth and 5 miles northeast of Los Molinos.

Drainage area. 134 sq mi.

Records available.--October 1928 to September 1951. September 1909 to September 1913 

(fragmentary).

Gage. Water-stage recorder. Altitude of gage is 420 ft (from topographic map). September 

T909 to September 1913, staff gage at site 0.3 mile downstream at different datum.

Average discharge. 23 years (1928-51), 273 cfs.

Extremes. Maximum discharge during year, 3,870 cfs Nov. 16 (gage height, 7.48 ft); mini- 

 mum, 91 cfs Oct. 13-16.

1928-51: 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 except those for period of no gage-height record, which are fair. 

Io~storage or large diversion above station.

Revisions. W 861: Drainage area.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.4 

1.6 

2.O 

2.5

84

123

232

405

3.0 

4.0 

5.O 

6.0

605 

1,06O 

1,600 

2,300

Discharge, in cubic feet per second, water year October 1950 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.

a93

a94

a94

a98

a!20

alSO

a!20

a!05

alOO

a97

»a95

93

91

51

91

93

102

108

98

95

93

93

93

98

112

302

332

454

498

586

255

4,947

160

9.81O

Nov.

199

174

174

177

16O

150

145

140

137

128

130

128

145

177

155

1,290

549

1,090

872

1,770

1.980

780

513

405

348

313

293

29O

254

290

-

13,356

445

26,490

Dec.

286

296

1.570

1,110

650

748

»1,OOO

1,390

1.52O

870

951

758

585

1,510

1,000

73O

581

497

445

394

356

330

306

290

277

264

248

238

232

232

229

19,893

642

39,460

Jan.

217

214

220

248

229

214

2O5

202

202

303

473

397

296

267

569

445

 433

687

525

409

1,370

2.120

928

672

557

489

437

397

363

323

3O3

14,714

475

29,180

Feb.

286

256" 274

8O5

1.5OO

902

712

650

577

541

1.580

1,150

766

617

537

469

429

413

371

356

489

485

413

367

341

330

313

*3O3

_

_

-

16,262

581

32,260

Mar.

286

27O

258

2ST

270

280

283

274

345

255

280

274

28O

306

327

345

327

310

306

313

330

334

323

316

327

323

323

32O

327

320

303

9,440

305

18,720

Apr.

296 255"

313

*330

367

394

401

413

449

517

513

505

521

553

5JT

541

533

489

473

465

449

429

421

417

397

397

386

533

437

378

13,154

438

26.O90

May

371

356

*4C5

597

465

465

433

409

409

417

'505 657

433

386

375

397

441

465

461

453

457

449

457

417

433

485

517

509

441

401

356

13,822

446

27,420

June

334

316

313

310

316

*316

303

296

286

286

293

293

299

306

320

330

323

3O6

29O

280

274

261

251

238

235

229

220

214

205

199

-

8,442

281

16,740

July

191 T5S"

18O

174

171

169

160

158

152

152

*147

147

147

147

145

142

140

137

135

133

130

130

128

125

125

123

123

121

12T

121

121

4,483-

145

8,890

Aug.

119

119

117

117

117

115

115

115

115

110

110

110

HO

110

108

*108

110

110

no

121

119

125

T2T

117

115

112

110

110

110

110

no

3,525

114

6,990

Sept.

110

TS5

108

106

104

104

104

104

102

102

102

100

102

102

100

100

102

100

1OO

100

100

100

98

95

98

98

98

98

102

106

3,056

102

6,060

Calendar year 1950: Max 3,210 Mln 89 Mean 332 Ac-ft 240,400

Water year 1950-51: Max 2,120 Mln 91 Mean 343 Ac-ft 248,100

Peak discharge (base. 1.50O efs).--Nov. 16 (7:3O a.m.) 3,870 cfs (7.48 ft); Nov. 21 (l a.m.) 3,730 

ofs (7.37 ft): Dec. 3 (3:3O p.m.) 2,560 cfs (6.28 ft); Dec. 9 (12:30 a.m.) 2,060 cfs (5.70 ft); Dec. 

14 (5:30 a.m.) 2,220 cfs (5.9O ft); Jan. 22 (1 a.m.) 3,510 cfs (7.18 ft); Feb. 5 (7 p.m.) 1,900 cfs 

(5.47 ft); Feb. 11 (4 p.m.) 3,660 ofs (7.31 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Deer Creek near Vina.
SACRAMENTO RIVER BASIN 359

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 northwest of Flourney, and 11 miles 

north of Paskenta.

Drainage area.--95.8 sq mi.

Records available.--December 1948 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 720 ft (from topographic map).

Extremes.--Maximum discharge during year, 2,350 cfs Jan. 21 (gage height, 8.28 ft), from 

rating curve extended above 410 cfs on basis of logarithmic plotting; minimum, 0.1 cfs 

Sept. 12.

1948-51: Maximum discharge, 3,690 cfs Mar. 11, 1949 (gage height, 8.78 ft), from 

rating curve extended above 400 cfs on basis of logarithmic plotting; no flow Aug. 6, 

Aug. 14 to Sept. 16, 1950.

Remarks.--Records good below 500 cfs, fair above. No large diversion.

1.7

1.8

1.9 

2.1

0.1 

.3 

.7

2.3

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Jan. 21

2.5 

2.8 

3.1 

3.5

8.9

19

34

71

4.5 

5.0 

6.0

7.1

240

368

755

1,40O

2.0

2.1

2.2 

2.4

0.2

.6

1.5

4.7

Jan. 22 to Sept. 30

2.8 

3.1 

3.5 

4.0

16

31

63

131

5.0 

6.0 

7.0

352

715

1.28O

Discharge, In cubic feet per second, water year October 1950 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

TotaJ

Mean

Ac-ft

Oct.

0.2

.4

.5

.7 

1.1

1.3

1.1

1.1

1.0

.8

.8

*.8

.8

.8

.8

.9

1.7

1.9

1.9

1.7

1.6 

1.6

1.7

2.4

4.6

75

45

334

510

72

1,306.2

42.1

2,590

Nov.

67

46

32

26 

21

19

17

15

14

13

13

13

13

*13

22

644

T55

88

73

63

62 

51

41

36

31

28

27

24

23

24

1,684

56.1

3,340

Dec.

23

120

925 ITS' 

216

243

274

264

254

179

200

154

157

492

271

200

163

134

116

100

90

81

76

71

64

59

56

53

49

48

44

5,592

180

11,090

Jan.

40

40

41

39 

36

35- 33

33

33

85

78

59

48

46 *46

65

162

297

170

121

1.560 

859

420

358

313

283

258

217

184

159

141

6,057

195

12,010

Feb.

123

118

155

941 

674

423

360

316

274

269

338

293

242

212

193

170

157

143

128

125

118 

115

108

102

96

93

*90

89

_

_

-

6,465

231

12,820

Mar.

85

80

76

94 

89

97

95

89

86

79

76

74

79

82

90

97

90

84

81

80

81 

80

78

74

74

73

71

70

70

67

65

2,501

80.7

4,960

Apr.

63

60 *58

57 

60

62

65

66

67

I2.

68

65

65

62

59

56

56

52

49

47

44 

42

40

39

40

37

37

64

47

40

-

1,639

54.6

3,250

May

37 *39

137

339 

169

121

109

97

90

92

87

80

76

70

63

59

56

55

57

50

47 

45

44

41

39

37

35

32

31

30

29

2,293

74.0

4,550

June

SI26

24

24 

*24

24

23

22

20

19

18

17

16

15

15

15

14

14

13

13

14 

14

13

12

12

11

10

9.8

9.2

8.7

-

496.7

16.6

985

July

8.2

7.9

8.2

9.8 

8.7

7.9

7.7

6.7

6.0 *5.6

5.4

5.4

5.4

4.9

4.5

4.3

4.2

3.8

3.4

2.9

2.8 

2.6

2.5

2.6

2.8

2.5

2.2

2.1

2.2

1.9

1.8

146.9

4.74

291

Aug.

1.4

1.3

1.4

Iff

1.4

1.3

1.2

1.1

1.2

1.2

1.2

1.1

.9

*.5

.5

A

ft

.5

.5

.4 

.5

.7

1.2

1.4

l.O

.9

.9

1.0

1.2

1.4

31.2

1.01

62

Sept.

1.3

T73

1.2 1.1 

1.1

1.1

1.0

.9

.7

.6

.4

.2

73

.4

.4

.3

.5

.4

.3

.3

.4 

.3

.3

.4

.5

.5

.5

.6

.8

1.2

-

19.3

0.64

38

Calendar year 1950; Max 925 Mln 0 Mean 54.3 Ac-ft 39,340

Water year 1950-51; Max 1,360 Mln O.2 Mean 77.3 Ac-ft 55,986

Peak discharge (base, 1.200 cfs). Oct. 29 (7:30 p.m.) 1,910 cfs (7.77 ft); Nov. 16 

1.67C cfs (7.48 ft); Dec. 3 (5 p.m.) 1,410 cfs (7.11 ft); Jan. 21 (11 a.m.) 2,350 cfs 

4 (6:30 p.m.) 1,920 cfs (7.79 ft).

* Discharge measurement made on this day.

5:30 a.m.) 

3.29 ft); Feb.
360 SACRAMENTO RIVER BASIN

Elder Creek at Gerber, Calif.

Location (revised). Lat 40°03'05", long. 122°09'55", in Saucos Grant, on right bank 1.0 

mile west or uerber, Tehama County, and 3.5 miles upstream from mouth.

Drainage area. 142 sq mi.

Records available.--October 1949 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 240 ft (from topographic map).

Extremes.--Maximum discharge during year, 5,310 cfs Jan. 21 (gage height, 9.81 ft), from 

rating curve extended above 1,400 cfs on basis of logarithmic plotting and velocityarea study; no flow for several months.

1949-51: Maximum discharge, that of Jan. 21, 1951; no flow for several months 

each year.

Remarks.--Records good. No large diversions.

Rating tables, water year 1950-51 (gage height, in feet, and discharge, 

in cubic feet per second)

2.1 

2.3 

2.5 

2.7 

2.9 

3.2

Oct. 1 to Dec. 3 

0

Dec. 4 to Sept. 30

3.6 216

4.0 340

4.5 520

5.0 750

5.5 1,030

2.3

2.4

2.5

2.6

2.7

3.5 

8.0

2.8

2.9

3.0 

3.3 

3.6

116

204

4.0 340

5.0 750

6.0 1,340

7.0 2,090

Discharge, In cubic feet per second, water year October 1950 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.

0

a

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

2.1

124

120

516

TT

839.1

27.1

1,660

Nov.

48

39

30

24

19

14

10

5.2

0

a

0

0

0

0

0

561

m

88

70

56

50

41

36

31

28

25

24

22

23

24

-

1,452.2

48.4

2,880

Dec.

23

ro

898

*7I9"

291

*230

312

*291

305

210

204

179

150

703

336

230

179

147

124

108

93

83

80

68

64

60

53

49

45

42

39

6,370

205

12,630

Jan.

38

37

37

*35

32

31

29

29

28

W

*BO

66

45

39

*41

45

113

265

170

116

1,790

1,750

610

456

392

344

316

270

236

204

185

7,889

254

15,650

Feb.

164

150

158

630

*l_i360

536

414

361

305

284

316

425

274

230

210

185

167

153

138

130

127

119

116

106

100

93

95

881~~

_

-

7,434

266

14,750

Mar.

85

78

73

83

98

88

95

83

90

78

73

71

68

76

80

90

85

78

73

73

73

73

68

66

66

66

62

60

*60

60

58

2,330

75.2

4,620

Apr.

56

53

51

49

49

53

56

58

58

60

60

58

56

56

53

49

47

44

41

38

35

32

31

31

*31

29 -75

42

45

34

-

1,384

46.1

2,750

May

29

29

70

~Z2Z 345

141

116

100

90

88

85

78

68

62

56

49

45

44

44

39

34

32

31

29

27

25

24

22

21

19

18

2,082

67.2

4,130

June

19

17

16

15

14

13

13

12

11

11

9.8

8.6

7.6

5.8

4.0

3.2

2.6

2.3

2.0

1.8

2.0

1.2

1.8

1.2

1.2

.5

** . 3

.1

0

ti

-

197.0

6.57

391

July

0

ti

o .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

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 898 Mln 0 Mean 52.0 Ac-ft 37,640

Water Water year year 195(5-51: 195(5-51: Max Max 1,790 1,790 Mln Mln 0 0 Mean Mean 82.1 82.1 Ac-ft Ac-ft 59,460 59,460

Peak discharge (base, 1,200 efs).--0et. 30 (1:30 a.m.) 1,460 cfs (6.18 ft); Nov. 16 (12:30 a.m. 

1,540 cfs (6:30 ft); Dec. 3 (10:30 p.m.) 1,660 cfs (6.47 ft); Dec. 14 (8 a.m.) 1,320 cfs (5.97 ft 

Jan. 21 (3:30 p.m.) 5,310 cfs (9.81 ft); Feb. 5 (4 a.m.) 2,380 cfs (7.32 ft).

* Discharge measurement made on this day.

. .. , . ; e 

Discharge measurement made on this day. 

* Field estimate made on this day.
SACRAMENTO RIVER BASDJ 361

Thoraes Creek at Paskenta, Calif.

Location. Lat 39°52', long. 122° 33' , in NWij sec. 4, T. 23 N., R. 6 W. , on left bank 0.5 

mile upstream from Paskenta, 4.5 miles downstream from Mill Creek, and 7 miles southwest of Flournoy.

Drainage area. 188 sq mi.

Records available. October to December 1920 (gage heights only), January 1921 to Septemoer JL9&J.. 

Gage.--Water-stage recorder. Prior to Oct. 1, 1930, staff gage 0.5 mile downstream at 

aifferent datum. Oct. 1, 1930, to June 21, 1942, water-stage recorder 1,000 ft upstream at different datum.

Average discharge. 30 years (1921-51), 239 cfs.

Extremes. Maximum discharge during year, 7,480 cfs Feb. 4 (gage height, 8.02 ft)- mini- 

 mum, 0.4 cfs Sept. 22.

1921-51: Maximum discharge, 18,600 cfs Jan. 21, 1943 (gage height, 10.92 ft), from

rating curve extended above 7,000 cfs by logarithmic plotting; no flow at times during

many years.

Remarks.--Records good except those above 2,000 cfs, which are fair, and those for period 

or no gage-height record, which are poor. No storage or diversion above station.

Rating tables, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Feb. 23 to Mar. 1)

Oct. 1 to Feb. 4 Feb. 5 to Sept. 30

1.7

1.8

1.9

2.0

2.1 

2.3

1.9 

3.9

2.5 

2.7 

2.9 

3.1 

3.4 

3.9

26

43

70

114

216

480

4.5 940

5.5 2,030

6.5 3,610

7.0 4,710

2.2

2.3

2.4

2.5 

2.7

6.1

14

38

3.0 

3.3 

3.6 

4.0 

4.5

90

177

310

545

940

5.0 1,430

6.0 2,720

7.0 4,710

Discharge, in cubic feet per second, water year October 1950 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.

0.8

.8

.7

77 

.8

1.8

15

10

6.1

5.5

5.2

*4.9

4.1

3.7

3.5

3.7

4.6

4.6

5.5

8.3

7.2

6.1 

5.8

6.8

8.7

67

283

1,900 

1, 630

1,440

552

5,996.9

193

11,890

Nov.

580

462

366

300 

220

170

140

117

102

88

82

76

74

*68TO"

730 1"5B698

601

668

722

480 

360

300

251

215

190

180 

170

160

-

9,108

304

18,070

Dec.

160

SOT

1,600

 

3,000 SCO"

600

650

700

650

600

500

450

800

1,700

1,100

700

550

450

400

370

330

300 

280

260

240

230

210

200

190

180

170

18,970

612

37,630

Jan.

160

150

145

140 

145

146

134

*131

13T

163

160

146

131

146

193

204

390

994

552

396

2,620

4^250 

2,000

1,580

1,300

1,140

1,050

880 

738

630

559

21,504

694

42,650

Feb.

506

468

664

4,590 

3,880

1,950

1,720

1,450

1,190

1,170

1,540

1,310

1,000

855

722

622

559

493

444

420

390

372 

335

310

295

280

*256

247

_

-

27,838

994

55,220

Mar.

238

225

208

229 

234

225

216

216

260

216

200

'ST3T

242

315

390

456

39TJ

355

355

366

396

384 

345

330

340

330

325

325 

330

305

285

9,235

298

18,320

Apr.

270

256

*247

251 

270

305

320

330

345

384

378

360

366

360

325

315

335

300

275

256

234

216 

208

200

189

177

290" 174

242

189

-

8,367

279

16,600

May

181

*193

306

520 '4T55'

372

360

320

335

360

360

315

280

251

234

234

242

256

251

229

225

216 

204

189

177

185

177

160 

137

126

114

7,917

255

15,700

June

104

W

92

88 

*88

86

82

80

76

70

68

67

65

62

60

60

56

53

48

46

46

44 

41

38

37

34

31

30 

29

26

-

1,809

60.3

3,590

July

25

2?

22

22

21

20

20

18

16

*14

14

14

14

12

12

12

11

9.8

9.0

8.2

7.5

7.5 

6.8

6.8

6.1

5.5

4.9

4.9 

4.9

4.4

3.9

381.2

12.3

756

Aug.

3.4

3TI

3.4

3.4 

3.4

3.0

3.4

2.6

2.3

2.3

2.3

2.0

1.8

1.6

*1.4

1.4

1.4

1.4

1.6

1.4

1.4

1.4 

1.8

1.8

1.8

1.8

1.6

1.8 

1.8

2.0

2.0

66.1

2.13

131

Sept.

1.8

1.6

1.8

1.8 

1.8

1.8

1.8

1.8

1.4

1.2

.9

.8

.7

77

.8

.7

.8

.9

.9

.8

.8

.7 

.8

1.1

1.1

1.2

1.1

1.4 

1.6

2.0

-

36.6

1.22

73

Calendar year 1950 : Max 3,000 Min 0 Mean 270 Ac-ft 195,800

Water water year year 1950-51 laso-bj.: : Max Max 4,aso 4,390 rain Min 0.7 Q.I Mean Mean 305 3O5 Ac-ft Ac-rr 220,600 22O,60O

Peak discharge (base, 1,600 efa). Oct. 29 (10:50 p.m.) 4,000 efs (6.69 ft); Dee. 3 (time unknown) 

6,9SO cfs (7.85 ft); Jan. Zl (12 p.m.) 7,360 cfs (7.98 ft); Feb. 4 (10 p.m.) 7,480 cfs (8.02 ft)j 

Feb. 11 (3 p.m.) 1,760 cfs (5.28 ft).

* Discharge measurement made on this day.

Note. No gage-height record Nov. 26 to Jan. 5; discharge estimated on basis of recorded range in 

stage and records for Elder Creek near Paskenta.
362 SACRAMENTO RIVER BASIN

Deer Creek near Vlna, Calif.

Location. Lat 40 0 01', long. 121°56', in M£ sec. 23, T. 25 N., R. 1 W., on left bank 0.8

 mile upstream from concrete diversion dam and 9 miles northeast of Vina.

Drainage area. 200 sq mi.

Records available October 1911 to December 1915, March 1920 to December 1937, January 

I9iiy to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 480 ft (from topographic map). Prior to

 Oct. 9, 1928, staff gage at site 0.8 mile downstream at different datum. Oct. 9, 1928, 

to Jan. 19, 1939, at datum 2.64 ft higher.

Average discharge.--32 years (1912-15, 1920-37, 1939-51), 289 cfs.

Extremes.--Maximum discharge during year, 4,500 cfs Nov. 16 (gage height, 7.75 ft); minimum, 83 cfs Oct. 1.

1911-15, 1920-37, 1939-51: 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 except those for period of no gage-height record, which are fair. 

BIO storage or large diversion above station.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Nov. 20

2.3 84

2.6 140

3.0 240

3.5 415

4.0 660

5.0 1,280

6.0 2,150

Nov

2.3 85

2.6 140

3.0 260

3.5 450

21 to Sept. 30

4.0 660

5.0 1,210

6.0 2,150

7.0 3,430

Discharge, in cubic feet per second, water year October 1950 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

Tota]

Mean

Ac-ft

Oct.

-&84

84

86

101

124

94

91

89

87

*87

86

86

84

84

89

98

92

89

87

87

86

87

92

116

403

416

512

395

672 25B~

4,930

159

9,780

Nov.

194

172

147

132

126

118

116

112

107

105

105

107

114

132

128

1,620

684

1,210

1,130

2,120

2,580

960

651

490

410

353

311

285

260

296

-

15,295

510

30,340

Dec.

289

285

1,540

1,640

924

920

*1,150

1,710

1,690

1,080

1,030

835

710

1,520

1,230

935

775

678

615

538

482

446

406

376

353

330

307

289

278

270

265

23,896

771

47,400

Jan.

260

255

260

290

270

250

240

230 730"

400

600

550

450

380

700

580

*540

918

696

554

1,060

2.860

1,616

1,110

885

760

678

606

554

486

454

19,716

636

39,110

Feb.

422

395

391

75?

1,890

1,380

1,060

998

875

795

1,700

1,830

1,220

974

840

741

669

633

566

530

620

600

580

540

500

475

460

*450

_

-

22,918

818

45, 460

Mar.

422

391

368 T50"

391

410

474

442

606

3BT

510

470

466

510

554

579

570

530

498

494

514

526

502

482

482

478

474

462

466

166

438

14,939

482

29,630

Apr.

426

422

434

*454

498

514

510

514

534

574

592

579

574

602

615

579

566

542

518

498

474

450

434

422

410

410

395

570" 672

474

15,256

509

30,260

May

442

418

*508

 sis 790

624

558

518

486

466

570

588

538

502

462

442

430

426

410

399

383

372

361

349

334

323

315

304

289

274

2_60

13,756

444

27,280

June

253

21?

235

228

224

*214

205

202

192

186

181

178

178

172

167

164

162

157

154

152

152

152

150

147

145

142

142

140

138

156

5,290

176

10, 490

July

136

T3T

134

134

134

132

132

130

130

127

*127

127

125

125

125

123

121

119

119

119

117

117

117

115

115

115

114

114

112

TT7

112

3,813

123

7,560

Aug.

110 TTO"

110

108

108

108

108

108

108

108

106

106

105

105

105

*103

TOT

103

103

105

110

108

110

108

106

103

103

103

105

105

105

3,296

106

6,540

Sept.

105

TOT

103

101

101

101

101

99

99

98

98

96

98

98

98

98

98

98

98

98

96

56" 95

96

95

96

96

96

98

101

2,954

98.5

5,860

Calendar year 1950: Max 3,950 Mln 76 Mean 365 Ac-ft 264,600

Water year 1950-51: Max 2,860 Mln 84 Mean 400 Ac-ft 289,700

Peak discharge (base, 

cfs (7.34 ftj; Dec.

2.600 efs). Nov. 16 (8:30 a.m.) 4,500 cfs (7.75 ft); Nov. 21 (1 

J:30 p.m.) 2,680 cfs (6.45 ft); Jan. 22 (6:30 a.m.) 3,630 cfs (7.14

.m.) 3,910 

ft); Feb.

11 (6 p.m.) 3,560 cfs (7.09 ft).

* Discharge measurement made on this day.

Note. No gage-height record Dec. 30 to Jan. 17, Feb. 20-28; discharge estimated on basis of recorded range in stage and records for Mill Creek near Los Molinos.
SACRAMENTO RIVER BASIN 363

Chico Creek near Chico, Calif.

Location. Lat 39 D 46', long. 121°46', in Arroyo Chico Grant, on right bank 1 mile upstream 

i'rom golf clubhouse in Municipal Park and 6 miles northeast of Chico, Butte County.

Drainage area.--68.3 sq mi.

Records available.--Hay 1930 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 296.31 ft above mean sea level (levels by 

 Corps of Engineers). Prior to May 28, 1946, at datum 2.11 ft higher.

Average discharge.--21 years, 131 cfs.

Extremes.--Maximum discharge during year, 2,270 cfs Nov. 16 (gage height, 9.71 ft); minimum, 21 cfs Oct. 1.

1930-51: Maximum discharge, 8,260 cfs Dec. 10, 1937 (gage height, 18.7 ft, present 

datum), 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 except those for period of no gage-height record, which are fair. 

Mo storage or large diversion above station.

Rating tables, water year 1950-51 (ga^e height, in feet, and discharge, 

in cubic feet per second)

2.5 

2.7 

3.0

Oct. 1 to Nov. 16

14 3.5

30 4.0

58 4.5

Nov. 16 to Sept. 30

128

235

375

Note. Same as following 

table above 4.5 ft.

2.6 

2.8 

3.0 

3.5 

4.0

142

240

4.5 

5.0 

6.0 

8.0 

10.0

375

525

850

1,550

2,400

Discharge, in cubic feet per second, water year October 1950 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.

22

22

23

23

29

38

28

25

25

*25

26

26

26

25

26

28

34

32

28

28

27

27

28

29

33

207

180

384

191

399

Tie

2,160

69.7

4,280

Nov.

77

57

49

44

44

39

36

34

33

31

31

33

42

40

916

711

813

508

969

1,020

465

254

180

140

113

97

83

74

*74

-

7,038

235

13,960

Dec.

73

978" 70

89l

459

378

495

651

892 5-61

474

339

269

914

798

558

405

299

245

204

176

158

139

127

115

106

97

88

82

80

78

11,199

361

22,210

Jan.

73

70

74

89

78

71

67

64

64

135

274

233

180

153

266

321

603

* 1,090

696

456

714

1,670

1,090

732

585

486

417

354

304

280

260

11,969

386

23,740

Feb.

250

230

250

700

1,000

800

650

570

530

500

1,000

900

550

450

370

320

290

280

260

250

300

290

250

230

220

210

200

*190

_

_

-

12,040

430

23,880

Mar.

182

171

162

174

216

259

307

296

543

444

333

288

291

324

339

333

302

264

240

227

222

218

204

192

184

174

165

156

153

151

144

7,658

247

15,190

Apr.

137

130

125

*122

118

113

108

103

98

94

88

84

82

80

82

74

73

70

69

66

63

60

6TJ

60

62

62

62

146

T34

105

-

2,730

91.0

5,410

May

94

*89

116

264 2~T8

194

169

151

135

123

127

132

123

116

105

97

90

84

82

80

76

73

70

67

64

62

60

58

56

54

55.

3,282

106

6,510

June

51

BE

50

49

*49

50

49

48

48

46

45

45

44

43

40

39

39

39

42

43

44

43

42

40

40

38

39

37

36

35

-

1,303

43.4

2,580

July

3535"

34

34

34

34

33

31

31

*30

30

30

29

29

30

29

29

29

28

28

28

30

28

26

28

28

27

27

27

26

26

923

29.8

1,830

Aug.

26

26

26

26

26

26

26

26

26

26

26

26

26

26

*26

26

26

26

26

26

26

26

26

26

26

25

23

25

26

26

26

803

25.9

1,590

Calendar year 1950: Max 2,160 Min 19 Mean 152 Ac-ft 110,200

Sept.

26

75

25

25

25

25

25

25

24

24

24

24

24

£4

23

23

24

24

24

24

24

24

24

24

24

24

24

24

25

26

-

731

24.4

1,450

Water year 1950-51: Max 1,670 Min 22 Mean 169 Ac-ft 122,600

Peak discharge (base, 900 cfs).--Oct. 26 (9:30 p.m.) 1,110 cfs (6.75 ft); Oct. 30 (1:30 a.m.) 1,190 

cfs (6.96 ft); Nov. 16 (10:30 a.m.) 2,270 cfs (9.71 ft); Nov. 20 (8:30 p.m.) 1,490 cfs (7.84 ft); Dec. 

3 (6:30 p.m.) 1,630 cfs (8.19 ft); Dec. 8 (12 p.m.) 1,110 cfs (6.75 ft); Dec. 14 (9 a.m.) 1,260 cfs 

(7.18 ft); Jan. 18 (2 a.m.) 1,290 cfs (7.26 ft); Jan. 22 (5 a.m.) 1,890 cfs (8.84 ft).

* Discharge measurement made on this day.

Note. No gage-height record Jan. 30 to Feb. 28; discharge estimated on basis of recorded range in 

stage and records for stations on nearby streams.
SACRAMENTO RIVER BASIN

Stony Creek near Hamilton City, Calif.

Location.--Lat 39°43'20", long. 122°03'10", in Capay Grant, on right bank 2.3 miles south- 

 west of Hamilton City, 8 miles east of Orland, Glenn County, and 6 miles upstream from 

mouth.

Drainage area.--764 sq mi.

Records available.--January 1941 to September 1951.

Sage.--Water-stage recorder. Altitude of gage is 160 ft (from topographic map). Prior 

fo February 1946, at site 3 miles upstream at different datum.

Extremes.--Maximum discharge during year, 11,600 cfs Jan. 22 (gage height, 14.10 ft); no 

now during several months.

1941-51: Maximum discharge, 37,500 cfs Mar. 1, 1941 (gage height, 6.35 ft, site 

and datum then in use), from rating curve extended above 30,000 cfs; no flow part of 

each year.

Remarks. Records good, except those for Apr. 12 to Sept. 30, which are fair. Flow regu- 

 TaTed 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). Many diversions above station for irrigation of Orland project, Bureau of Reclamation.

Discharge, In cubic feet per second, water year October 1950 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.

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

o

0

0

35

35

1-.13

69

Nov.

38

27

27

22

18

14

11

7.2

4.0

2.3

.9

.3

0

ET

0

0

218

T5T

*149

180

200

237

176

130

98

78

64

54

50

*41

2,003.7

66.8

3,970

Dec.

37

8l8~ 35

*4,120

2,800

2,020

2,190

*2,150

1,840

1,480

1,240

1,160

966

2,010

2,570

1,770

1,300

1,000

826

710

617

551

465

405

375

345

308

242

221

200

180

34,981

1,128

69,380

Jan.

164

149

138

141

145

130

116

105

98 116"

153

176

145

116

116

134

164

*420

716

716

1,750

9,990

7,700

4,630

3,220

2,510

2,140

1,850

1,630

1,440

1,290

42,308

1,365

83,920

Feb.

1,180

1,090

1,050

1,360

4,100

3,730

2,760

2,280

1,920

1,690

1,630

2,340

2,300

1,960

1,380

1,160

840

710

656

59T

798

826

833

812

784

752

*728

716

_

-

41,077

1,467

81,480

Mar.

722

716

692

686

728

746

758

758

777

833

819

639

455

440

470

606

728

798

770

728

704

644

562

525

460

395

350

196

106

57

BT

17,929

578

35,560

Apr.

59

5T

*38

37

38

29

32

32

32

26

24

33

35

30

27

29

23

2T

32

33

32

33

35

35

35

35

35

27

26

27

992

33.1

1,970

May

27

27

27

22

25

22

22

25

27

27

29

30

32

33

35_

35

33

30

27

27

29

29

29

27

27

27

19

8.0

5.8 4.0'

. 3.4

770.2

24.8

1,530

June

2.9

OT

1.2

.7

** .4

1.5

2.9

1.6

1.4

1.1

.4

.1

0

ff

0

0

0

0

0

0

0

0

0

0

0

.2

.1

0

0

0

-

16.3

0.54

32

July

0

3\4

5.8

4.0

1.3

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

14.5

0.47

29

Aug.

0

ff

0

0

0

0

3.9

3.2

0

0

0

0

0

0

0

0

0

0

7.6

14

8.0

5.2

4.2

3.4

6.0

8.4

8.0

8.4

6.0

8.8

30

125.1

4.04

248

Sept.

21

IT

11

6.8

1.9

0

cr

0

0

0

3.1

9.2

9.6

7.2

6.4

4.8

6.4

5.5

1.4

0

0

0

0

0

0

0

0

1.5

7.2

16

-

130.0

4.33

258

Calendar year 1950: Max 4,120 Mln 0 Mean 189 Ac-ft 136,500

Wate/- year 1950-51: Max 9,990 Mln o Mean 385 Ac-ft 278,400

Peak discharge (base, 2,000 efaj. Dee. 4 (5 a.m.) 5,590 cfs (11.25 ft); pec. 7 (8 p.m.) 2,470 cfs 

(9.10 ft); Dec. 14 (9 P.m.) 3,260 cfs (9.78 ft); Jan. 22 (2 p.m.) 11,600 cfs (14.10 ft); Feb. 5 

(11 a.m.) 4,930 cfs (10.98 ft); Feb. 12 (4 p.m.) 2,480 cfs (9.28 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.

Note. Backwater from farmer's dam Apr. 12 to Sept. 30.
SACRAMENTO RIVER BASIN 365

Sacramento River at Butte City, Calif.

Location. --La t 39°27'35", long. 121 "59 '35", in NE^- sec. 32, T. 19 N. , R. 1 W. , on left 

 bank 0 . 5 mile south of Butte City.

Records available . --April 1921 to October 1939 (low-water periods only) and June 1940 to 

September iat>i in reports of Geological Survey. 1939-51 in reports of Division of 

slater Resources, Department of Public Works, State of California.

Gage. --Water-stage recorder. Datum of gage is set to datum of Corps of Engineers. Prior 

to December 1930, at site 0.5 mile upstream at same datum.

Average discharge .--11 years (1940-51) 11,700 cf s .

Extremes. Maximum discharge during year, 74,300 cfs Jan. 23 (gage height, 89.25 ft); minimum, 4,330 cfs Sept. 30.

1940-51: Maximum discharge, 170,000 cfs Feb. 7, 1942 (gage height, 96.87 ft), from 

rating curve extended above 100,000 cfs.

1921-51: Minimum discharge recorded, 1,050 cfs July 15, 25, 26, 1931 (gage height, 

67.49 ft).

Remarks . --Records excellent. rt regulated by reservoirs, many diversions for irrigation

ypassing for flood control. See "Remarks" for Sacramento River at Keswick

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day Oct. May June July Aug. Sept.

4,780 

4,690 

4,730 

*4,690 

4,710

4,880

4,980

4,980

4,980

4,960

4,880

4,820

4,780

4,750

4,670

5,360 

5,150 

5,110 

*5,340 

6,170

7,180

18,700

17,200

21,200

17,500

24,100

21,800

15,800

13,600

12,600

8,320

7,590

7,070

8,770

11,400

6,760

6,700

6,630

6,630

6,450

6,480

6,540

6,540

6,430

6,390

6,390 

*6,480 

6,520 

6,540 

6,560

7,920

7,570

7,660

7,620

7,520

7,250

6,850

6,740

6,410

6,210

6,170

5,980

5,870

5,680

5,500

5,280 

5,130 

5,090 

5,050 

*4,980

4,960

4,960

4,980

5,050

5,070

4,990

4,990

4,990

4,690

4,820

90,540

6,146

77,900

313,340

10,440

621,500

961,360 

31,010 

tl,907

714,700 

23,050 

tl,418

948,300 

33,870 

tl,881

437,380

14,110

867,500

225,730

7,282

447,700

193,220

6,441

383,200

278,910

8,997

553,200

287,960

9,289

571,200

175,980

5,866

349,100

Calendar year 1950: Max 

Water year 1950-51: Max

62,400

70,800

Mln 4,640 

Mln 4,670

9,937

13,460

Ac-ft 7,194,000 

Ac-ft 9,748,000

* Discharge measurement made 

t Expressed in thousands.

on this day.
366 SACRAMENTO RIVER BASIN

Sacramento River at Colusa, Calif.

Location. Lat 39°12 t 5Q", long. 121°59'55", at north end of Jimeno Grant, on right bank 

just downstream from highway bridge at Colusa and at mile 89.4 upstream from Sacramento.

Records available.--April 1921 to October 1939 (low-water periods only) and June 1940 to 

September ISfal in reports of Geological Survey. 1939-51 in reports of Division of Water 

Resources, Department of Public Works, State of California.

Gage.--Water-stage recorder. Datum of gage is set to'datum of Corps of Engineers. Prior 

£o December 1930, water-stage recorder in center fender pier 50 ft upstream from bridge 

at same datum.

Average discharge.--11 years (1940-51), 9,864 cfs.

Extremes.--Maximum discharge during year, 37,700 cfs Jan. 23 (gage height, 63.88 ft); minimum, 4,770 cfs Oct. 5, 16; minimum gage height, 39.61 ft Oct. 5.

1940-51: Maximum discharge, 49,000 cfs Feb. 8, 1942 (gage height, 69.20 ft), 

1921-51: Minimum discharge recorded, 820 cfs July 25, 26, 1931 (gage height, 34.79 

ft).

Remarks.--Records good. Flow regulated by reservoirs above station and bypassing for flood 

control. Many diversions above station for irrigation.

Cooperation.--Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, In cubic feet per second, water year October 1950 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.

4,850 

4,830

4,820

*4,850

4,780

4,900

5,020

5,090

5,100

5,050

5,030

4,980

4,940

4,890

4,830

4.770

4,860

5,110

5,270

5,270

5,080

5,020

5,110

*5,160

5,300

5,520

6,550

8,530

3,700

12,800

16,700

183,710

5,926

364,400

Nov.

13,800 

9,590

8,100

7,330

6,890

6,480

5,980

*5,860

5,860

5,750

5,640

5,500

5,340

*5.500

6,000

6,070

13,000

16,500

18,300

18,900

19,500

25.200

19,700

16,200

14,600

13,300

11,500

10,700

10,300

9,900

-

325,090

10,840

644,800

Dee.

9.870 

10,600

11,300

24,100

32,900

29,000

24,700

27,100

29,900

30,900

30,000

29,100

30,500

31,300

34,400

36.100

35,600

35,100

*34,700

34,100

33,000

31,400

27 , 900

23,200

21,200

21,600

19,700

18,800

18,100

17,600

17,100

810,870

26,160

1,608,000

Jan.

16,100 

15,500

15,200

15,200

14,300

14,400

13,800

13,400

15.100

13.100

16,100

22,600

23,500

19,700

16 , 900

16,800

18,700

*21,300

26,400

25,700

22,400

28,200

37.000

36,300

33,500

31,000

27,800

24,600

23,000

21,800

20,500

657,900

21,220

1,305,000

Feb.

19,300 

18,100

17,100

17.000

23,900

33,400

32,900

31,000

31,000

30,500

30,100

31,500

*33,500

33,400

33,400

33,200

33,200

33,200

33,500

* 54. OOP

33,100

31,400

29,200

26,300

23,600

22,000

21,300

21,000

_

-

791,100

28,250

1,569,000

Mar.

20.700 

20,400

19,900

19,300

18,300

19,300

19,000

19,900

18 , 600

17,800

17,200

15,100

13,800

*13,200

12,700

12,600

12 , 500

12,400

12,100

11,800

11,700

11,500

11,400

11,100

10,300

10,100

10,400

10,400

10,000

9,620

9j490

442,610

14,280

877,900

Apr.

9.220 

7,900

7,420

7,110

6,920

6,770

6,600

6,480

6,370

6,240

6,150

6,040

6,080

5,950

5,910

5,970

5,900

5,840

*5,790

5,420

5.520

5,400

5,810

5,800

5,730

5,650

5,600

5,730

6,530

8,260

-

189,910

6,330

376,700

May

7,970 

7,600

7,000

7,250

9,340

10.600

9,880

9,200

8,550

7,910

7,480

7,400

7,600

7,140

*6,800

6,350

5.930

5.680

5,730

5,810

6,090

6,160

6,120

6,040

6,000

5,850

5,820

5,800

5,710

5,860

5,860

216,530

6,985

429,500

June

5,660 

5.620

5,780

5,790

5,780

5,830

5,980

5,980

6,040

6,230

6,300

6,300

6,310

6,310

6,230

6,180

6,170

6,220

6,170

6,150

*6,070

6,150

6,190

6,240

6.520

6,310

6,250

6,240

6,250

6,300

-

183,340

6,111

363,600

July

6.550 

6,360

6,350

6,480

6,790

7,020

7,130

7,150

7,180

7,120

7,160

7,520

8,150

8,660

8,860

8,970

9,000

9,030

9,030

*9,150

9,520

9,660

9,760

9,810

9,800

9,920

9,950

9.980

9,970

9,980

9,950

261,740

8,443

519,200

Aug.

9,970 

9. 980

9,460

9,460

9,550

9,620

9,580

9,540

9,510

9,520

9,370

9,370

9,360

*9,300

9,300

9,140

8,910

8,880

8,800

8,550

8,450

8,460

8,360

8,380

8,190

8,160

8,120

8,080

*8,010

7,870

7. 780

277,030

8,936

549,500

Sept.

7,600 

7,440

7,400

7,400

7,370

7,360

6,870

6,780

6,540

6,290

6,220

6,180

5,920

5,860

5,670

5,550

5,530

5,250

*5,180

5,160

5,120

5,080

5,090

5,110

5,160

5,230

5,260

5,250

5,100

4.970

-

178,740

5,958

354,500

Calendar year 1950: Max 36,100 Mln 4,760 Mean 9,318 Ac-ft 6,746,000

Water year 1950-51: Max 37,000 Mln 4,770 Mean 12,380 Ac-ft 8,962,000

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 367

Butte Creek near Chico, Calif.

Location. Lat 39°44', long. 121°42', In NW£ sec. 36, T. 22 N., R. 2 E. , on right bank 

U.B mile downstream from Little Butte Creek and 7.5 miles east of Chico.

Drainage area.--148 sq ml.

Kecoras available.--November 1930 to September 1951.

uage.--water-stage recorder. Altitude of gage Is 350 ft (from topographic map). Prior 

Eo Aug. 13, 1944, at site 0.4 mile upstream at different datum.

Average discharge.--20 years (1931-51), 378 cfs.

extremes. Maximum discharge during year, 3,850 cfs Nov. 20 (gage height, 6.20 ft)' minimum, 54 cfs July 21.

1930-51: Maximum discharge, 17,000 cfs Dec. 11, 1937 (gage height, 18.9 ft, site 

and datum then in use), from rating curve extended above 6,000 cfs by logarithmic 

plotting; minimum recorded, 22 cfs Aug. 19, 1939.

Remarks.--Records good. Butte Creek receives considerable water above station from West 

Branch Feather River by way of De Sabla and Centerville power plants. Pacific Gas & 

Electric Co. has furnished the following record of this flow for the water year 1951.

Month

November. ..... 

December. ..... 

January ...... 

February. .....

September. ....

Water' year- .

Mean discharge 

(cubic feet 

per second)

20.2 

60.5 

66.3 

72.5

43.9

43.8

55.3

Runoff 

(acre-feet)

1,200 

3,720 

4,080 

4,030

2,610

40,080

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Nov. 16 Nov. 16 to Sept. 30

1.7 

1.9 

2.2

135

236

2.5 371

3.0 675

4.0 1,490

1.9 84

2.2 179

2.5 318

3.0 632

4.0 1,550

6.0 3,630

Discharge, in cubic feet per second, water year October 1950 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

Cale

Oct.

103

TT5

113

116

116

189

130

122

113

*122

122

124

119

122

122

122

156

13S

135

130

127

124

127

132

162

446

430

626

474

745

3C¥

6,227

201

12,350

Nov.

221

182

156

150

135

127

124

122

113

119

T0~8~ 103

127

153

147

1,120

1,360

1,800

*1,250

2,330

2,490

1,070 

742

586

480

424

379

338

303

333

-

17,092

570

33,900

Dec.

323

303

2,T55C

1,680

1,050

1,000

1,280

1,570

*1,840

1,220

1,160

1,000

877

1,820

1,650

1,230

1,000

895

769

682

609

549 

514

480

449

424

396

385

418

363

363

28,519

920

56,570

Jan.

326

328

343

385

348

323

313

308 3DB"

436

733

579

449

390

480

571

985

*1,710

1,080

787

1,290

2,840 

1,760

1,360

1,160

1,080

985

895

787

733

657

24,731

798

49,050

Feb.

617

556

59T

1,320

2,140

1,510

1,310

1,200

1,080

1,040

1,930

2,090

1,470

1,280

1,120

1,020

940

877

778

769

823

742 

690

632

632

665

649

624

_

-

29,098

1,039

57,720

Mar.

*579

556

507

WS

690

796

859

733

994

555

690

640

682

751

769

742

733

657

665

640

690

682 

649

609

632

609

571

549

571

579

514

20,755

670

41,170

Apr.

507

493

474

493

*493

507

521

521

514

535

564

564

564

564

556

535

542

521

467

500

443

443

436

413 4ie

407

390

S7T

5T7

418

-

14,941

498

29,640

May

413

407

*474

769

575

594

564

474

455

449

521

486

486

443

418

407

407

418

402

407

379

385 

363

353

348

328

328

313

318

293

283

13,264

428

26,310

June

'278" 283

268

249

259

*244

249

249

235

235

208

226

213

208

217

200

204

183

196

192

196

196 

196

192

192

172

T7?

179

175

175

-

6,448

215

12,790

July

175

1ST

154

154

147

150

168

161

128

T35

*150

147

143

150

150

150

150

147

147

140

143

147 

143

140

143

140

137

128

134

134

128

4,525

146

8,980

Aug.

128

115

124

137

T3T

124

128

124

118

118

115

124

112

128

106

*121

124

118

101

T5F

121

115 

112

124

121

118

124

115

106

137

112

3,729

120

7,400

Sept.

137

118

128

118

121

131

109

115

121

157

121

104

137

124

121

118

121

112

134

115

128

118 

104

124

118

112

115

121

98

1T5T

-

3,581

119

7,100

ndar year 1950: Max 3,800 Mln 87 Mean 423 Ao-ft 306,200

Water year 1950-51: Max 2,840 Min 98 Mean 474 Ac-ft 343,000

Peak discharge (base, 2,700 cfs). Nov. 20 (8 p.m.) 3,850 cfs (6.20 ft)j Dec. 3 (6:30 p.m.) 3,250

cfs (5.65 rtjj Jan. 22 (4 a.m.) 3,410 cfs (5.80 ft)j Feb. 11 (6 p.m.) 3,210 cfs (5.61 ft).

* Discharge measurement made on this day.
000 SACRAMENTO RIVER BASIN

Sacramento River below Wilkins Slough, Calif.

Location.--Lat 39°00'35", long. 121°49i25", in Jimeno Grant, on right bank 1,500 ft downstream from Wilkins 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 1951 in reports of Geological Survey. 1939-51 in reports of Division of 

Water Resources, Department of Public Works, State of. California.

Gage. Water-stage recorder. Datum of gage is set to datum of Corps of Engineers. 

Average discharge.--11 years (1940-51), 8,612 cfs.

Extremes. Maximum discharge during year, 22,500 cfs Dec. 16 (gage height, 48.26 ft); minimum, 4,100 cfs Apr. 21 (gage height, 25.75 ft).

1940-51: Maximum discharge, 26,600 cfs Feb. 8, 1942 (gage height, 52.29 ft). 

1931-51: Minimum discharge recorded, 100 cfs Aug. 1, 1931 (gage height, 14.20 ft).

Remarks.--Records good. Flow regulated by reservoirs, many diversions for irrigation, and 

bypassing for flood control.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

a

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.

4,900 

4,870

*4,780

4,800

4,760

4,860

4,980

5,100

5,080

4,960

4,940

4,870

4,800

4,790

4,730

*4 J 680

4,710

5,020

5,220

5,270

5,080 

5,040

5,150

5,250

5,370

5,710

6,420

8,120

8,820

11,200

14.700

178,980

5,774

355,000

Nov.

15,400 

11,800

9,530

8,340

7,630

7,200

*6,620

6,330

6,280

6,180

6,090

6,040

5,860

5.770

6,120

6,680

*10,800

15,600

17,300

19,200

19,200 

21.000

19,800

17,500

16,000

14,900

13,200

11,900

10,900

10,300

-

339,470

11,320

673,300

Dec.

9.B20 

9,910

10,300

16,400

21,600

*21,300

20,500

20,700

21,200

21,400

21,300

21,100

21,300

21,400

21,800

22.400

22,400

22,300

, 22,200

22,000

21,800 

21,600

21,200

20,400

19,800

19,200

18,600

17,800

17,000

16,500

16,000

601,230

19,390

1, 193, 000

Jan.

15,500 

14,300

14,300

13,900

*13,200

13,100

12,700

12,200

11,900

11.800

13,100

18,000

20,000

18,400

16,000

15, 100

16,500

17,400

20,200

20,400

19,800 

20,200

21,800

21.900

*21, 500

21,100

20,800

20,300

20,000

19,700

19,300

534, 400

17,240

!£60,000

Feb.

18,600 

17,000

16,800

16.500

18,500

21,500

21,800

21,600

21,600

21,500

21,400

21,600

21,900

22.000

22,000

21,900

21,900

21,900

*21,900

21,900

21,800 

21,600

21,400

21,000

20,600

20,200

20,000

19,800

_

_

-

580,200

20,720 ysi.ooo

Mar.

19.600 

19,400

19,000

18,600

17,700

18,100

18,500

19,000

18,700

17,800

17,800

*16,200

14,800

14,200

13,700

13,400

13,400

13,300

13,000

12,800

12,500 

12,400

12,200

12,000

11,200

10,900

*11,100

11,100

10,800

10,400

10.200

453,800

14,640

900,100

Apr.

10.000

9,000

8,120

7,680

7,370

7,160

6,910

6,740

6,580

6,320

6,140

*6,100

6,020

5,820

5,640

5,690

5,600

5,410

5,200

4,620

4.220 

4,320

4,590

4,660

*4,560

4,500

4,380

4,640

5,410

7,300

-

180,700

6,023

358,400

May

7,820 

7,410

6,860

6,900

8,530

10.400

10,300

9,600

8,950

*8,220

7,740

7,560

7,880

7,510

6,960

6,450

5,850

5,380

5,320

5,490

5,690 

5,680

5,640

5,520

5,430

5,220

5,200

5,110

4,960

5,010

*5,060

209,650

6', 763

415,800

June

4,850 

4.590

4,650

4,730

4,610

4,630

4,740

4,800

4,820

5,040

5,200

5,240

5.250

5,210

5,080

4,950

4,890

4,900

4,840

4,750

4,720 

4,770

4,880

4,900

5,000

*4,960

4,850

4,730

4,710

4,780

-

146,070

4,869

289,700

July

4.770 

4,820

4,790

4,850

5,180

5,430

5,560

5,660

5,710

5,620

5,570

5,850

6,450

7,020

7,340

7,520

7,500

7,530

7,540

7,580

7,910 

8,120

*8,240

8,280

8,260

8,340

8,440

8,450

8.490

8,460

8,450

213,730

6,895

423,900

Aug.

8,500 

8.550

8,230

7,920

8,010

8,110

8,100

8,060

8,040

8,060

7,980

8,040

8,030

* ,920

,920

,910

,680

,620

,590

,400

,270 

,330

,320

,380

.260

,260

,280

* ,340

,450

,280

,280

240,120

7,746

476,300

Sept.

m7,020

7,050

7,080

7,200

6,960

6,790

6,770

6,540

6,480

6,480

6,280

6,220

6,110

5,940

5,760

5,590

*5,530

5,460

5,430 

5,370

5,320

5,330

5,360

5,430

5,440

5,440

5,360

5.150

-

183,190

6,106

363,400

Calendar year 1950: Max 22,700 Mln 3,860 Mean 8,429 Ac-ft 6,103,000

Water year 1950-51: Max 22,400 Min 4,220 Mean 10,580 Ac-ft 7,660,000

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 369 

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 1961 in reports of Geological Survey. 1939-51 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Gage. Water-stage recorder. Datum of gage is set to datum of Corps of Engineers. Since 

Aug. 16, 1945, auxiliary water-stage recorder 6.0 miles downstream from base gage. 

Jan. 1, 1941, to June 30, 1945, at site 14.4 miles downstream.

Average discharge. 11 years (1940-51), 9,050 cfs.

Extremes. Maximum discharge during year, 23,500 cfs Dec. 16; maximum gage height, 37.99 

ft Dec. 10; minimum discharge, 4,060 cfs Apr. 21; minimum gage height, 16.00 ft July 2. 

1940-51: Maximum discharge, 27,900 cfs Feb. 9, 1942; maximum gage height, 41.83 ft 

Feb. 8, 1942.

1921-51: Minimum discharge recorded, 250 cfs July 23, 1931 (gage height, 7.80 ft).

Remarks. Records excellent. Flow regulated by reservoirs, many diversions for irrigation, 

and bypassing for flood control; considerable return water from irrigation. Records of 

chemical analyses and water temperatures for the water year 1951 are given in WaterSupply Paper 1200.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, S-tate of California.

Discharge, In cubic feet per second, water year October 1950 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.

5,410

5,380

5,300

5,300

5,290

5,310

5,400

5,560

5,570

5,510

5,510

5,440

5,350

5,270

5,260

*5.250

5,230 

5,460

5,640

5,710

5,560 

5,470

5,490

5,660

5,780

*6,060

6,300

7,360

8,690

9,790 

15.100

187,390

6,045

371,700

Nov.

16,100

12, 800

10, 600

9,170

8,170

7,520

6,900

6,490

6,470

6,380

6,250

6,270

*6,030

5,950

6,070

6,750

7,490 

12,400

12, 200

17,300

17,200 

19.800

19,800

17,500

15, 400

14,500

13,500

12,200

11,600

11,200

329,790

10, 990

654,100

Dec.

10,900

10,900

11,000

15, 100

21,800

*22,400

21,000

20, 900

21,500

22,000

22,200

21, 800

22,100

21,900

22, 200

25,100

23.500 

22, 900

25,000

22, 500

22,400 

22,000

21,700

20, 900

20, 200

19,800

19,700

19,000

18,000

17,000 

16, 800

617,800

19,950

tl, 225

Jan.

16,100

14, 800

14,400

14, 400

*13, 700

15,600

13,400

15,100

12,700

12.400

12,500

17,400

21,900

20,700

17,900

15,800

17,400 

18,000

*20,300

21,500

20,900 

20,700

22,300

25.000

22, 600

22,200

21,800

21,600

20,900

20,600 

20,400

558,800

18,050

tl,108

Feb.

20, 400

19,200

18,400

17.700

18,500

21,500

22,600

22,400

22, 100

22,100

22,200

22,100

22,500

22,600

*22,600

22,600

22.800 

22,600

*22,600

22,500

22,700 

22,500

22,200

22,100

21,800

21,400

21, 600

21,700

_

-

605, 800

21, 640

tl,202

Mar.

21, 200

21.400

21,100

20, 800

19,100

18,900

19,600

19,400

*19,700

18,500

18,500

16,800

15,400

14, 600

15,900

15,700

15,700 

15,700

15,300

15,000

12,900 

12,700

12,600

12,600

11,800

11, 500

11,500

11,700

11,400 ni.ooo

11,000

476,800

15,580.

945,700

Apr.

10.700

10, 100

9,180

8,680

8,400

7,990

7,720

7,630

7,580

7,160

6,850

6,780

*6,520

6,160

5,770

5,950

5,880 

5,700

5,440

4,84O

,520 

,530

,460

,760

* ,650

,720

,700

,840

5,680

7,610

195,100

6,505

587,000

May

8,860

8,580

7,990

7,350

8,O8O

10,700

11.400

11,000

10,200

*9,250

8,560

7,750

8,560

8,560

7,960

7,440

6,900 

6,250

6,040

6,780

6,650 

6,670

6,690

6,500

6,590

6,100

5,850

5,810

5,650

5.560 

*5, 680

235,080

7,585

466,500

June

5,590

5,210

5.110

5,150

5,150

5,120

5,250

5,400

5,440

5,750

5,940

6,000

6.050

6,050

5,950

5,710

5,560 

5,520

5,520

5,450

5,570 

5,580

5,540

5,670

5,650

*5,590

5,490

5,350

5,250

5,320

165,470

5,516

528,200

July

5,420

5.540

5,580

5,480

5,590

5,910

6,110

6,250

6,260

6,260

6,180

6,550

6,850

7,350

7,690

7,930

7,890 

7,900

7,960

*7,950

8,140 

8,600

8,650

8,800

8,810

8,830

8,940

8,970

9,090

9.100 

9,100

228,980

7,586

454,200

Aug.

9,100

9.220

9,020

8,490

8,750

8,720

8,770

*8, 690

8,690

8,690

8,660

8,850

8,730

8,650

8,600

8,720

8,490 

8,540

8,350

8,160

7.940 

8,040

8,060

8,160

8,110

8,250

8,240

*8,300

8,540

8,540 

8,450

264, 240

8,524

524, 100

Sept.

8,370

8,610

8,410

8,450

8,570

8.76O

8,700

8,510

8,690

8,450

8,150

7,990

7,720

7,450

7,550

7,210

6,940 

6,640

*6,640

6,540

6,440 

6,570

6,310

6,280

6,290

6,190

6,140

6,110

5,980

5.810

220,010

7,334

136,400

Calendar year 1950 : Max 23,300 Mln 3,560 Mean 8,703 Ac-ft 6,30O,OOO

Water year 1950-51 : Max 23,300 Mln 4,320 Mean 11,190 Ac-ft 8,103,000

* Discharge measurement made on this day. 

t Expressed in thousands.
370 SACRAMENTO RIVER BASIN

Grizzly Creek near Portola, Calif.

Location. Lat 39°52', long. 120°28', in NEv sec. 12, T. 23 N., R. 13 E., on left bank 4.8 

mij.es north of Portola and 5.0 miles upstream from mouth.

Drainage area.--45.0 sq mi.

Records available.--October 1925 to September 1932, October 1950 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 5,500 ft (from topographic map). Oct.

 Z6, 1925, to Sept. 30, 1932, at different datum.

Average discharge.--8 years (1925-32, 1950-51), 30.9 cfs.

Extremes.--Maximum discharge during year, 1,780 cfs Dec. 3 (gage height, 7.48 ft), from

 rating curve extended above 220 cfs on basis of slope-area determination of peak flow; 

minimum, 0.4 cfs Aug. 4-6, 11-19.

1925-32, 1950-51: Maximum discharge, 2,680 cfs Mar. 26, 1928 (gage height, 7.50 ft, 

datum then in use); minimum, 0.1 cfs July 24 to Aug. 31, 1931.

Remarks. Records good except those for periods of no gage-height record and those for 

Dec. 17 to Jan. 22, which are poor. No storage or diversion.

1.1

1.3 

1.6

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Dec. 3

1.3 

3.9 

5.4 

9.4

18

1.9 

Z.Z 

3.5 

3.0 

3.5

85

147

239

4.0 

5.0 

6.0

323

580

970

0.2 0.4

.3 1.0

.4 1.9

.6 4.4

Dec. 4 to Sept. 30

0.9 9.7

1.2 18

1.5 39

3.0 60

3.5 100

3.0 155

4.0 332

5.0 580

Discharge, In cubic feet per second, water year October 1950 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

37

28

29

30

31

Total

Mean

Ac-ft

Oct.

a3

62

2

133

Nov.

*5.8

4.6

3.0

3.6

3.3

3.1

1.9

1.9

1.7

1.5

1.4

T7G

1.9

2.6

3.4

2.4

45

496

502

880

699

203

118

83

61

46

35

30

*38

95

3,360.7

112

6,670

Dec.

40

32

*9?7

1BTJ

179

398

394

448

230

150

372

155

113

439

393

162

124

105

98

80

71

63

56

52

50

43

35

35

39

34

27

5,413

175

10,740

Jan.

39

30

30

30

34

23

33

21

23

31

17

22

28

23

32

22

17

15

17

37

38

80

114

130

ra

107

97

88

69

57

51

1,406

45.4

3,790

Feb.

46

41

43

94

179

163

397

*343

188

303

307

174

130

111

104

90

77

69

61

62

59

59

47

43

41

40

39

38

_

-

3,945

105

5,840

Mar.

a65

3,015

65

4,000

Apr.

370

-

2,100

70

4,170

May

*120

109

109

112

93

108

80

70

61

54

81

73

67

65

48

41

47

83

59

40

33

37

33

21

19

18

16

14

14

13

T?

1,737

55.7

3,430

June

11

9.9

9.3

8.7

7.9

7.5

7.3

7.0

6.6

6.1

5.8

5.3

5.1

4.6

4.1

3.8

3.6

3.3

3.0

2.8

3.9

3.0

3.0

3.7

2.3

3.3

3.1

1.9

1.7

T77

-

146.3

4.87

390

July

1.5 T75

1.3

1.2

1.2

1.3

1.2

1.2

1.1

1.0

1.0

*1.0

.8

.8

.8

.7

.7

.6

.6

.6

.5

75

.5

.5

.5

.5

.5

.5

.5

.5

.5

25.4

0.82

50

Aug.

0.5

.5

.5

.4

74

.4

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.6

~T5 1.0

.8

.8

.7

.6

.5

.5

.5

.5

16.1

0.52

32

Sept.

0.6

.6

.6

.6

.6

.5

75

*.5

.5

.5

.5

.5

.5

.5

.5

.6

.6

.7

.8

.B

.7

.6

.6

.6

.6

.6

.6

.7

.8

.8

-

18.1

0.60

36

Calendar year 1950: Max - Mln - Mean - Ac-ft -

Water year 1950-51: Max 927 Mln 0.4 Mean 53.7 Ac-ft 38,170

Peak discharge (base, 410 efs). Nov. 18 (9 p.m.) 840 cfs (5.70 ft); Nov. 20 (10 p.m.) 1,460 cfs 

(6.93 ft;; DecT 3 14:30 p.m.; 1,780 cfs (7.48 ft); Dec. 8 (11 a.m.) 604 cfs (5.07 ft); Dec. 11 

(l p.m.) 460 cfs (4.58 ft); Dec. 14 (9 a.m.) 744 cfs (5.46 ft); Feb. 7 (7 p.m.) 455 cfs (4.56 ft); 

March or April, 455 cfs (4.56 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of range In stage and records for stations 

on nearby streams.
SACRAMENTO RIVER BASIN 371

Middle Fork Feather River near Clio, Calif.

Location. Lat 39°45', long. 120°36' , in E| sec. 23, T. 22 N., R. 12 E., on left bank 0.3 

mile upstream from Frazier Creek, 1.5 miles northwest of Clio and 2 miles southeast of 

Blalrsden.

Drainage area. 699 sq mi.

Records available . October 1925 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,350 ft (from topographic map).

Average discharge.--26 years, 249 cfs.

Extremes. Maximum discharge during year, 7,170 cfs Nov. 20 (gage height, 12.58 ft), from 

rating curve extended above 1,700 cfs by logarithmic plotting; minimum, 10 cfs July 26.

1925-51: Maximum discharge, 11,000 cfs Mar. 26, 1928 (gage height, 12.0 ft), from 

rating curve extended above 7,000 cfs; minimum, 4.3 cfs Sept. 5, 1934.

Remarks.--Records good prior to July 13, fair thereafter. Many small diversions above 

station for irrigation.

2.5 

2.5 

2.8 

3.1 

3.6 

4.0

Rating tables, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used July 18 to Sept. 30)

Oct. 1 to Nov. 20 Nov. 21 to Jan. 24 Jan. 25 to Sept. 30

90

139

238

336

5.0 

6.0 

7.0 

9.0 

10.0

626

995

1,510

3,020

3,970

4.8 

5.6 

6.0 

7.0

285

430

540

950

8.0

9.0

10.0

11.3

1,520

2,290

3,270

4,930

3.2 

3.4 

4.0 

4.5

5.1

9.0

21

68

132

256

6.0 

7.0 

8.0 

9.0 

10.2

Discharge, In cubic feet per second, water year October 1950 to September 1951

557

1,000

1,550

2,290

3.490

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

40 30"

40

40

45

50

46

50

50

50

50

50

46

46

46

47

49

49

49

49

49

48

49

57

90

179

T37

60

45

167

95

1,908

61.5

3,780

Nov.

*68

66

74

84

90

88

80

68

60

54

50

50- 49

58

65

224

270

1,630

2,210

3,810

4,870

3,540

2,500

1,450

897

620

478

406

*365

367

-

24,641

821

48,870

Dec.

347

297

2.TSO"

2,800

5,540

2,720

2,580

5,080

2,840

2,440

2,070

1,650

1,300

2,080

2,100

1,900

1,740

1,320

1,060

882

757

675

605

547

525

486

458

432

424

422

398

44,451

1,455

88,150

Jan.

572

365

365

383

585

570

550

558

327

323

338

353

3QO

505

311

296

37S

486

376

565

618

1,480

2,330

4,550

3,440

2,160

1,560

1,250

940

547

533

26,198

845

51,960

Feb.

423

5T3- 419

928

1,540

1,350

*1,650

1,560

1,510

1,530

1,450

1,570

1,630

1,420

1,150

970

855

778

671

651

671

665

625

546

542

535

513

491

-

_

-

26,552

948

52,630

Mar.

473

419

351

344

375

*416

462

509

498

444

409

598

402

412

454

498

488

441

441

466

524

5T3

459

448

466

441

434

405

419

434

392

13,615

439

27,000

Apr.

385

388

392

385

409

419

409

405

392

381

558

554

525

515

528

522

502 39"5

297

361

318

246

242 ?tt

264

325

279

484

466

491

-

10,861

362

21,540

May

527

*580

55F

558

488

466

441

419

402

588

495

448

398

378

551

558

564

398

375

528

282

244

225

E12

203

197

188

178

161

145

127

10,869

351

21,560

June

113

TOT

92

85

79

75

71

64

61

56

55

52

48

41

58

59

59

57

55

57

36

36

36

55

54

55

29

29

 2S 26

-

1,557

51.2

5,050

July

26

 27 30

28

28

29

29

28

29

28

28

*26

24

23

22

23

22

22

20

16

16

17

18

17

15

15

14

15

15

15

15

676

21.8

1,540

Aug.

15

TS

21

22

22

22

25

25

24

24

25

25

26

27

25

25

22

22

22

29

33

34

3T

33

31

28

26

24

22

24

24

773

24.9

1,550

Sept.

24

24

23

22

22

22

22

*21

21

21

20

255

20

21

22

23

24

24

27

28

26

26

21

23

2£

29

23

28

27

28

-

728

24.3

1,440

Calendar year 1950: Max 4,870 Mln 16 Mean 411 Ac-ft 297,700

Water year 1950-51: Max 4,870 Mln 13 Mean 446 Ac-ft 322,700

Peak discharge (base, 850 cfs). --Nov. 20 (11:30 p.m.) 7,170 cfs (12.58 ft); Dec. 3 (8:30 p.m.)

4,a*O el's (11.31 ft); Dec. 8 (8 p.m.) 3,480 cfs (10.19 ft); Dec. 14 6 p.m.) 2,450 cfs (9.16 ft);

Jan. Z4 (1 a.m.) 4.4£ 

1,700 cfs (8.24 ft).

* Discharge measurement made on this day.
°'* SACRAMENTO RIVER BASIN

Middle Fork Feather River below Sloat, Calif.

Location.--Lat 39°52', long. 120°46', on left bank 0.5 mile west of Bells Bar, 1.2 miles 

downstream from Rattlesnake Creek, and 1.6 miles west of Sloat, Plumas County.

Drainage area. 835 sq mi.

Records available. December 1940 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 4,050 ft (from topographic map).

Average discharge.--10 years (1941-51), 503 cfs.

Extremes.--Maximum discharge during year, 13,300 cfs Nov. 21 (gage height, 12.25 ft), from 

rasing curve extended above 2,300 cfs on basis of a previous curve defined to 8,700 cfs; 

minimum observed, 53 cfs Sept. 15, 20.

1940-51: Maximum discharge, that of Nov. 21, 1950; minimum, 32 cfs Sept. 5, 6, 1949. 

Maximum stage known, 13.2 ft, from floodmarks, probably in February 1940 (discharge, 

13,300 cfs, from rating curve extended above 9,000 cfs).

Remarks.--Records good except those for periods of no gage-height record and once-daily 

staff-gage readings, which are poor. Flow slightly regulated by millpond at Sloat. 

Many small diversions above station for irrigation.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second] 

(Shifting-control method used Oct. 1-27)

Oct. 1 to Nov. 14

0.1

.5

1.0

1.4

2.0

53

107

189

310

565

3.0

4.0

6.0

8.0

10.0

1,080

1,840

3,900

6,460

9,550

Dec. 4 to

-1.7

-1.0

-.5

0.0

.6

53

63

89

156

283

Sept. 30

1.2

2.0

3.0

5.0

7.4

470

820

1,480

3,360

6,280

Discharge, in cubic feet per second, water year October 1950 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.

57

58

57

57

61

65

62

60

60

58

58

57

56

54

54

54

56

56

56

56

56

57

58

63

99

231

475

288

228

695

342

3,744

121

7,430

Nov.

239

*219

236

228

222

207

189

178

168

162

156

153

Teo

170

200

500

600

3,000

4,000

6,000

9.000

7,000

4,500

3,000

2,000

1,500

1,000

800

750

*750

47,287

1,576

93,790

Dec.

700

600

3,500

6,100

5,440

5,000

6,280

5,250

5,330

4,490

3,680

3,050

2,400

3,600

3,510

2,900

2,650

2,200

1,860

1,620

1,430

1,270

1,140

1,040

972

906

820

770

735

730

688

80,661

2,602

160,000

Jan.

598

590

581

608

594

565

529

494

480

484

509

488

438

446

460

438

502

1,050

730

652

997

2,680

2,410

4.190

3,670

2,630

2,080

1,770

1,500

990

906

35,059

1,131

69,540

Feb.

780

775

835

1,460

2,000

1,950

*2,100

2,100

1,900

1,900

. 2,000

2,100

2.200

2,100

1,900

1,700

1,600

1,400

1,300

1,200

1,200

1,200

1,100

1,000

1,000

950

900

850

_

-

41,500

1,482

82,310

Mar.

800

700

600

550

600

*650

706

775

805

730

693

684

702

745

795

882

876

810

805

840

930

930

865

845

865

845

840

805

825

835

775

24,108

778

47,820

Apr.

750

755

770

785

840

865

870

906

930

972

942

912

912

936

948

912

1.060

954

830

855

815

755

730

716

716

740

688

1,010

936

894

25,704

857

50,980

May

894

*936

948

1,000

930

912

882

850

860

906

1.170

954

845

780

760

800

850

924

918

855

795

740

725

702

698

706

706

666

594

529

465

25,298

816

50,180

June

410

378

356

337

326

315

301

276

258

241

234

227

219

210

204

202

198

179

163

156

143

136

124

113

105

101

84

79

75

75

-

6,225

208

12,350

July

75

77

76

76

76

77

78

83

85

86

87

88

(*7

> 75

2,389

77.1

4,740

Aug.

60

1,860

60

3,690

Sept.

54

54

54

54

54

54

54

*g54

g54

g54

g54

g54

g54

g54

g53

g54

g54

g54

g54

g53

g54

g54

g54

g54

g54

g54

g54

g54

g54

g55

1,619

54.0

3,210

Calendar year 1950 : Max 9,000 Mln 48 Mean 823 Ac-ft 595,600

Water year 1950-51 : Max 9,000 Mln 53 Mean 809 Ac-ft 586,000

Peak discharRe (base, 1,600 cfs). Nov. 21 (12:30 a.m.} 13.3OO cfs (21.25 ftl: Dec. 3 (8 n.m.~\

9,190 cfs (9.33 ft); Dec. 7 (5 p.m.) 6,820 cfs (7.78 ft); Dec. 14 (11 a.m.) 4,360 cfs (5.91 ft);

Jan. 24 (4 a.m.) 4,470 cfs (6.00 ft); probably Feb. 13 (time unknown) 2,320 cfs (3.97 ft).

* Discharge measurement made on this day.

g Computed from once-daily staff -gage readings.

Note . No gage-height record Nov. 15 to Dec. 3, Feb. 7 to -Mar. 6, June 29 to July 6, and July 

13 to Sept. 7; discharge estimated on basis of recorded ranges in stage, floodmark, 1 discharge

measurement, and records for station near Clio and Feather River at Bidwell Bar.
SACRAMENTO RIVER BASIN 373

Lost Creek near Clipper Mills, Calif.

Location. Lat 39°34'25", long. 121°08'20", in SE£ sec. 24, T. 20 N., R. 7 E., on left 

bank; 1,000 ft downstream from Lost Creek Reservoir, 0.3 mile downstream from Pinkard 

Creek, and 3 miles north of town of Clipper Mills.

Drainage area. 30.1 sq mi.

Records available.--October 1927 to September 1941, October 1948 to September 1951. 

Gage. Water-stage recorder. Altitude of gage is 3,160 ft (from topographic map). 

Average discharge.--17 years (1927-41, 1948-51), 64.8 cfs.

Extremes.--Maximum discharge during year, 1,870 cfs Nov. 20 (gage height, 5.43 ft), from 

rating curve extended above 450 cfs on basis of determination of flow over dam at 6.80 

ft, minimum, 0.3 cfs Nov. 17.

1927-41, 1948-51: Maximum discharge, 3,380 cfs Dec. 10, 1937 (gage height, 6.80 ft); 

computed from peak flow over Lost Creek Dam; no flow at times in 1940-41, 1949-50.

Remarks. Records good except those for periods of no gage-height record, which are fair. 

Storage in Lost Creek Reservoir (capacity, 5,640 acre-ft) above station was 1,350 acreft Sept. 30, 1950, and 2,720 acre-ft Sept. 30, 1951. Forbestown ditch diverts water a 

quarter of a mile above station.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 21 Nov. 22 to Sept. 30

1.0 

1.2 

1.5 

1.8

0.5 

1.8 

5.6

11

Z\

37

Z.\ 

2.5 

3.0 

3.5 

4.0 

4.6

65

126 262

465

745

1,160

1.0

1.1

1.2

1.3 

1.5 

1.7 

Z.I.

0.4

1.3

3.0

5.5

14

27

65

Note. Same as 

preceding table 

above 2.1 ft. 

Discharge, in cubic feet per second, water year October 1950 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

TotaJ

Mean

Ac-ft

Oct.

7.5

7.8

8.0

8.0

8.0

8.0

8.0

8.0

8.3

8.3

8.5

8.8

9.0

9.3

9.3

9.6

eTo

4.6

4.6

4.8

4.8

4.8

5.0

5.0

5.0

5.0

4.6

4.3

4.3

4.8

4.1

208.1

6.71

413

Nov.

3.9

3.9

3.9

3.9

3.9

3.9

3.7

3.7

*3.7

2.6

.9

.9

.9

2.5

6.3

3.7

.5

2.6

1.4

1,070

1,150

398

246

173

133

107

93

81

73

77

3,637.8

121

7,220

Dec.

81

71

676

608

546

567

515

732

565

398

375

304

269

525

505

575

507

262

250

200

181

160

148

157

128

118

113

107

102

102

96

9,103

294

18,060

Jan.

91

96

120

107

94

90

85

85

84

99

99

84

77

77

91

*84

156

484

233

170

260

656

411

323

282

256

240

221

206

186

173

5,720

185

11,350

Feb.

166

156

184

406

565

398

346

323

304

307

406

411

334

296

269

246

240

221

200

2OO

186

173

163

156

153

155

141

135

_

.

-

7,238

258

14,360

Mar.

130

122

120

157

137

139

139

133

153

126

120

120

126

137

144

156

156

150

*158

168

181

181

178

181

186

189

189

186

200

192

176

4,810

155

9,540

Apr.

168

166

166

176

189

200

206

206

215

224

221

212

206

200

195

178

168

156

146

126

116

allO

a!04

97

113

109

99

166

120

*115

4,873

162

9,670

May

107

101

128

181

148

160

153

159

139

148

153

133

120

105

97

94

88

84

80

73

70

67

65

61

57

54

51

a49

a40

a56

a54

3,013

97.2

5,980

June

alO

-

300

10

595

July

a9

a9

a9

a9

a9

a6

a7

a6

a6

a6

*a6

5.5

5.2

5.0

4.5

4.5

4.2

4.2

4.0

3.8

3.0

5.0

2.8

2.8

2.7

2.5

2.5

2.2

2,0.

2.0

2.2

150.6

4.86

299

Aug.

2.0

1.5

1.2

.9

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.6

1.6

4.0

6.7

7.1

7.1

7.1

7.1

7.1

7.1

7.1

J B Q

7.6

7.6

114.3

3.69

227

Sept.

7.6

7.6

7.6

7.6

*7.6

.6

.6

.6

.6

.6

7.6

8.0

8.0

8.0

8.4

8.4

8.8

8.8

8.8

8.8

8.8

9.2

9.2

9.6

976

9.2

8.8

8.8

8.8

8.8

250.4

8.35

497

Calendar year 1950: Max 1,13O Min 0 Mean 95.4 Ac-ft 69,08O

Water year 1950-51: Max 1,130 Mln 0.5 Mean 108 Ac-ft 78,210

Peak discharge (base, 27O efs). Nov. 20 (12 p.m.) 1,870 cfs (5.43 ft); Dec. 3 (6 p.m.) 1,310 cfs 

4.80 ft); Dec. 8 (5 p.m.) 929 cfs (4.27 ft); Dec. 14 (10 p.m.) 620 cfs (3.80 ft); Jan. 18 (6 a.m.) 

I\Z cfs (3.95 ft); Jan. 22 (6 a.m.) 797 cfs (4.O8 ft); Feb. 5 (2 a.m.) 693 cfs (3.92 ft); Feb. 11 

(7 p.m.) 540 cfs (3.65 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge Interpolated or estimated on basis of range In stage, change in 

contents in Lost Creek Reservoir, and operational records of Forbestown ditch.

256498 O - 53 - 25
374 SACRAMENTO RIVER BASIN

Palermo Canal at Enterprise, Calif.

Location. La t 39°32'05", long. 121°20'40", in NWv 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 1951. Prior to October 1926 published as

 Palermo Land and Water Co.'s canal at Enterprise.

Gage . --Water-stage recorder and Parshall flume. Altitude of gage is 650 ft (from topo-

 graphic map). Prior to Nov. 17, 1932, staff gages at several sites about 1 mile downstream at verious datums. Nov. 17, 1932, to Oct. 21, 1934, staff gage at present site 

and datum.

Average discharge. 40 years, 19.0 cfs.

Extremes . --Maximum daily discharge during year, 30 cfs Oct. 5; no flow Mar. 20, 21.

 1911-51: Maximum discharge recorded, 43 cfs July 25, 1927; no flow for periods in 

each year except 1939, 1941, 1942, 1944-47, 1949, 1950.

Remarks. --Records excellent. Canal diverts from left bank of South Fork Feather River

 TTnTle above Enterprise. Water is used for irrigation near Oroville.

Cooperation. --Gage-height record collected in cooperation with Oroville -Wyandotte Irrigation District .

Discharge, in cubic feet per secpnd, water year October 1950 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.

28

28

29

29

30

29

28

28

29

29

29

29

28

28

29

28

28

28

28

27

27

26

27

27

25

23

14

12

12

11

10

783

25.3

1,550

Nov.

9.6

10

10

11

IT

9.4

*11

11

10

10

10

10

10

10

10

5.5

5.2

5.2

2.2

1.6

1.3

377

5.9

5.7

5.5

5.3

5.9

6.6

6.1

5.5

-

224.2

7.47

445

Dec.

5.3

^73

5.0

2.8

2.5

*2.3

2.4

2.4

2.4

3.1

3.8

3.0

3.8

3.8

3.8

3.8

3.

3.

3.

3.

3.

3.

3,

3.

3.

3.

3.

3.

3.

3.

3.

111.0

3.58

220

Jan.

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.7

*3.7

3.7

3.7

3.7

3.7

5.5

3.5

3.5

3.7

3.7

3.7

3.7

3.7

3.7

3.7

3.8

 sTs 5.5

5.3

5.3

5.3

5.3

124.2

4.01

246

Feb.

5.3

575

5.3

5.7

6.4

*6.4

6.4

6.4

6.2

6.2

6.2

6.4

6.2

6.1

6.1

5.9

5.9

5.7

5.9

5.9

5.9

5.7

5.7

5.7

5.5

5.5

5.5

5.5

_

_

-

164.9

5.89

327

Mar.

5.3

5.5

5.5

5.5

5.7

5:7

*5.9

5.7

5.7

5.7

5.5

5.7

5.7

5.7

5.7

5.7

5.5

5.5

2.8

0

0

9.7

20

25

20

20

20

20

20

20

20

293.7

9.47

583

Apr.

20

2?5

20

20

20

20

20

21

21

21

26

29

75

29

29

29

29

29

29

29

29

29

28

28

27

26

26

27

26

26

-

762

25.4

1,510

May

26

26

26

 27

27

27

27

26

26

27

27

27

26

26

26

26

27

27

27

27

27

27

26

26

26

26

27

27

28

29

2S

828

26.7

1,640

June

28

28

29

29

28

29

29

29

29

29

28

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

866

28.9

1,720

Juty

29

29

29

29

29

29

29

29

29

*29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

899

29.0

1,780

Aug.

2929"

29

29

29

29

29

29

29

29

29

29

28

29

29

28

28

28

28

28

29

29

29

29

29

29

29

29

29

29

29

893

28.8

1,770

Sept.

29

29

29

29

29

*29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

29

870

29.0

1,730

Calendar year 1950: Max 32 Min 1.3 Mean 18.5 Ac-ft 13,360

Water year 195O-51: Max 30 Mln 0 Mean 18.7 Ac-ft 13,520

'Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 375

South Fork Feather River at Enterprise, Calif.

Location. Lat 39°32'15", long. 121°20 I 45", in NWij sec. 6, T. 19 N., R. 6 E., on left bank 

U.t> 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 640 ft (from topographic map). Prior 

Eb Sept. 19, 1930, staff gage at site half a mile downstream at different datum.

Average discharge.--4Q years, 300 cfs.

Extremes.--Maximum discharge during year, 9,580 'cfs Nov. 20 (gage height, 15.9 ft), from 

rating curve extended above 4,000 cfs on basis of computation of peak flow over dam; 

minimum, 0.1 cfs Oct. 1, 2, 22, 23, Aug. 19, 20.

1911-51: Maximum discharge, 17,300 cfs Dec. 10, 1937 (gage height, 20.4 ft), from 

rating curve extended above 5,000 cfs on basis of velocity-area studies; no flow Aug. 

9, 10, Sept. 24-30, 1950.

Remarks. Records good. Storage and diversions above station for irrigation. (See p. 374 

for records for Palermo Canal.)

Rating tables, water year 1950-51 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Nov. 20 Nov. 21 to Sept. 30

Z.Z 

5.3

9.8

24

48

105

220

445

780

1,190

2,380

4,080

6,160

1.8

1.3

2.2

5.3

10 5.0

112

172

252

512

84O 

1,250 

2,400 

4,O8O 

6,160

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

0.1

TT

.2

.2

1.1

8.4

8.4

3.6

2.3

2.2

1.7

1.0

.8

.5

.5

.8

5.3

2.5

.6

.2

.2

.1

.1

4.2

22

176

331

233

229

452 2O"I

1,689.1

54.5

3,350

Nov.

137

111

93

85

82

78

70

67

62

56

44

42

BT3

58

60

333

574

2,750

2,360

*6,050

5,470

2,200

1,320

930

721

591

506

448

390

400

-

26,118

871

51,800

Dec.

428

361

2,870

3,050

1,780

1,740

2,440

3,340

2,820

1,820

1,700

1,360

1,080

2,130

2,340

1,730

1,360

1,120

978

840

742

654

597

546

512

473

434

400

379

371

345

40,740

1,314

80,810

Jan.

322

312

369

395

332

303

281

274

270

*3~56

453

397

348

325

403

417

743

2,390

1,180

840

1,290

2,890

1,960

1,460

1,210

1,060

970

892

816

746

696

24,700

797

48,990

Feb.

644

612

642

1,440

2,200

1,620

1,380

1,270

1,160

1,120

1,490

1,510

1,260

1,110

998

882

864

819

746

732

704

648

606

582

567

552

526

504

_

_

-

27,188

971

53,930

Mar.

490

450

434

49¥

588

672

*819

TOT

111

644

585

561

570

594

6O6

618

618

594

591

606

637

624

606

603

621

618

618

615

634

627

588

18,813

607

37,320

Apr.

570

567

573

588

637

682

718

732

774

858

882

8fa8

882

900

9CD

868

840

788

721

676

644

585

484

52U

555

552

512

696

573

498

20,643

688

40,940

May

473

442

512

*749

6 Ob

609

600

588

624

690

808

72T

637

582

546

540

555

5bl

549

526

492

464

46 b

400

377

3fal

362

303

265

230

202

15,783

509

31,310

June

145

139

132

12fa

120

112

108

115

109

117

92

95

92

91

88

88

82

82

82

81

82

82

78

72

65

59

54

47

43

21

2,717

90.6

5,390

July

32" 36

a60

a29

a28

a27

a26

g25

a23

*a22

21

20

18

16

16

14

13

12

11

9.5

9.0

8.7

7.7

7.0

6.4

fa. 4

5.7

4.8

6.8

3.5

ITT

495.6

16.0

983

Aug.

3.2

2.3

1.8

2.0

1.1

.9

1.2

1.6

1.6

1.5

1.4

.8

.7

.8

.7

.6

.5

.3

.1

TT

1.6

4.3

4.6

5.0

4.4

3.5

2.9

3.5

4.4

5.5

5.7

68.3

2.20

135

Sept.

5.0

473

4.3

4.3

4.1

*3.9

3.9

3.5

2.6

2.6

2.6

2.1

1.9

1.8

1.6

1.9

3.6

3.9

3.5

3.3

2.9

2. fa

2.6

2.6

2.6

2.3

2.1

2.5

3.0

3.9

91.5

3.05

181

Calendar year 1950: Max 6,030 Min o Mean 464 Ac-ft 335,600

Water year 1950-51: Max 6,030 Mln o.l Mean 491 Ac-ft 355,100

( 12.71 Peak discharge ft); Dec. 8 (base, (' 1,400 cfs).- '

(5 a.m. ) 3,470 cfs

(9.05 ft); Feb. 11

i p.m.) 4,230 cf

-Nov. 20 (9 p.m.) 9,580 cfs (IS. 9 ft); Dec. 3 (7 p.m.) 5,840 cfs 

3 (11.15 ft): Dec. 14 (11 a.m.) 2,750 cfs (9.46 ft); Jan. 18

10.32 ft); Jan. 22 (6 a.m.) 3,350 cfs (1O.19 ft); Feb. 5 (6 to 7 a.m.) 2,440 cfs

3 p.m.) 1,960 cfs (8.32 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge interpolated.

g Computed from once-daily staff-gage reading.
376 SACRAMENTO RIVER BASIN

Feather River at Bidwell Bar, Calif. 

(Formerly published as Middle Fork Feather River at Bidwell Bar)

Location. Lat 39°33'15", long. 121°26'15", in NW£ sec. 32, T. 20 N., R. 5 E., on left 

bank just upstream from suspension bridge at Bidwell Bar, 2 miles upstream from North 

Fork and 7 miles northeast of Oroville.

Drainage area.--1,353 sq mi.

Records available.--October 1911 to September 1951. Published as "Middle Fork Feather 

Klver 1911-bO, and as "near Oroville" 1911-28.

Sage.--Water-stage recorder. Altitude of gage is 290 ft (from topographic map). Prior 

to Sept. 17, 1930, staff gage at same site and datum.

Average discharge.--40 years, 1,794 cfs.

Extremes.--Maximum discharge during year, 50,200 cfs Nov. 21 (gage height, 18.25 ft), from 

rating curve extended above 26,000 cfs by logarithmic plotting; minimum, 179 cfs 

Sept. 23.

1911-51: Maximum discharge, 93,000 cfs Dec. 11, 1937 (gage height, 24.0 ft, from 

floodmarks), from rating curve extended above 25,000 cfs on basis of velocity-area 

and AYH" studies; minimum, 88 cfs Jan. 8, 1937.

Remarks. Records good. Flow slightly regulated by small reservoirs above station. 

Several diversions above station for irrigation.

Rating table, water year 1950-51 (gage height, 1 

and discharge, in cubic feet per second)

feet,

2.1 

2.4 

2.8 

5.2 

3.6

166

232

338

465

626

4.0 

4.5 

5.0 

6.0 

7.0

820 

1,120 

1,510 

2,460^_- 

3,680

8.0

9.0

11.0

13.0

16.0

5,100

6,650

10,900

17,800

33,000

Discharge, In cubic feet per second, water year October 1950 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

25

24

25

26

27

28

29

50

31

Total

Mean

Ac-ft

Oct.

189

193

195

198

210

352

259

232

218

215

208 

204

200

195

198

198

222

254

215

206

204

202

204

222

534

1,590

2,640

1,990

1,840

5.550

1,750

18,425

594

56,550

Nov.

1,090 

875

775

750

686

655

*592

555

519

480

455 

441

473

531

555

1,840

4,440

15, 400

16,200

27 , 500

52.500

12,800

8,650

6,150

4,690

5,740

5,120

2,700

2,590

2,580

155,692

5,125

504,800

Dec.

2,470 

2.120

11,900

18.500

10, 400

*9,950

12,700

16,100

15,900

10, 500

9,440 

8,010

6,570

11,000

12,100

9,160

7,710

6,520

5,660

4,940

4,580

3,950

5,480

5,190

2,960

2,760

2,560

2,590

2,280

2,250

2,150

223,740

7,217

445, 800

Jan.

,980 

,910

,050

,140

,920

,820

,740

,680

.640

,950

,550 

,020

,790

,680

2,080

2,040

5,050

8,400

4,990

5,640

4,980

15.000

9,260

9,610

8,920

7,250

6,050

5,510

4,700

5,850

5,570

127,110

4,100

252, 100

Feb.

3,200 

2,960

5,060

6,750

10.400

*8,050

7,540

7,560

6,600

6,510

7,850 

8,200

7,270

6,570

5,850

5,250

4,900

4,590

4,150

5,920

5,820

3,620

3,420

3,200

3,060

5,050

2,910

2.780

_

-

146, 400

5,229

290, 400

Mar.

2,660 

2,520

2.540

2,540

2,860

5,110

5,480

3,150

5.580

5,090

2,820 

2,700

2,720

2,880

5,040

5,190

5,260

5,060

2,980

5,020

5,220

5,520

5,190

5,110

5,170

3,190

3,160

5,100

5,150

5,200

5,000

93,810

3,026

186, 100

Apr.

2,860 

2,840

2,880

2,960

3,250

5,470

5,620

,740

,950

,580

,510 

,580

,420

,590

.650

,460

,540

,180

,780

,560

,470

,500

,060

,050

,960

,940

,780

,500

,290

2,860

-

107,990

5,600

214,200

May

2,760 

2,700

2,920

*5,750

5,420

5,560

5,500

5,200

5,580

5,620

5^890

5,590

5,100

2,960

2,990

5,120

3,200

3,220

5,090

5,000

2,720

2,580

2,440

2,550

2,520

2,240

2,140

1,960

1,780

1.650

90, 950

2,954

180, 400

June

1.450 

,350

,280

,220

,180

,140

,090

,070

,020

983

935

911

893

858

826

810

795

775

740

706

701

677

665

640

617

600

587

565

559

525

-

26,142

871

51,850

July

507 

495

484

469

469

462

451

438

*438

421

411 

405

588

579

369

365

355

346

538

550

321

318

316

510

302

299

290

282

282

279

277

11,594

374

25,000

Aug.

274 

266

261

256

256

256

254

251

251

249

246 

259

254

234

232

227

220

218

218

218

220

222

225

250

250

232

230

225

222

*227

218

7,341

257

14,560

Sept.

227 

220

218

215

208

206

204

202

198

195

191 

187

185

185

187

185

191

198

195

195

189

187

185

185

185

185

185

185

187

195

-

5,840

195

11,580

Calendar year 1950: Max 32,300 Mln 187 Mean 2,827 Ac-ft 2,046,000

Water year 1950-51: Max 52,500 Mln 185 Mean 2,775 Ac-ft 2,009,000

Peak discharge (base. 5.600 efsK Nov. 18 (11:30 p.m.) 24.000 cfs (14.58 ft); Nov. 21 (5 a.m.) 

50,200 cfs (18.25 ft); Dec. 3 (10 p.m.) 26,600 cfs (14.89 ft); Dec. 8 (11 p.m.) 21,300 Ofs (13.82 ft); 

Dec. 15 (3 a.m.) 15,500 cfs (11.85 ft); Jan. 18 (6 a.m.) 11.100 cfs (11.07 ft); Jan. 22 (10 a.m.) 

14,600 cfs (12.15 ft); Feb. 5 (8 a.m.) 11,600 cfs (11.25 ft); Feb. 11 (8 p.m.) 9,700 cfs (10.54 ft).

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 377

Lake Almanor near Prattvllle, Calif.

Location. Lat 40°10'30", long. 121°05'25", In NW£ sec. 28, T. 27 N., R. 8 E., at outlet 

tower of dam on North Fork Feather River and 5 miles southeast of Prattvllle.

Drainage area.--506 sq ml.

Records available.--October 1913 to September 1951 (yearly summaries only prior to October 

193U.aee water-Supply Paper 881).

Gage.--Staff gage read once daily. Datum of gage is 4,400 ft above mean sea level; gage 

readings have been reduced to elevations above mean sea level.

Extremes. Maximum contents observed during year, 648,700 acre-ft June 19 (elevation, 

4,473.95 ft); minimum observed, 486,600 acre-ft Oct. 24 (elevation, 4,466.07 ft).

1913-51: 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 ele- 

^on 4,455 ft above mean sea level in 1917 and to 4,515 ft above mean sea level.in

tunnel to .butt valley Reservoir for use in Caribou i 

down North Fork Feather River (see following page), 

contents at 12 p.m. interpolated from readings made

,. Records including extremes, show

uuiiL/cuL/o a i/ ±c p.m. in i/erpuia L,eu iruiii reaaings made at 5 p.m., all of which is 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., obtained in 

connection with a Federal Power Commission project.

Contents, In acre-feet, water year October 1950 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

Oct.

514,000

512,700

510,900

509,900

509,300

508,200

507,000

505,800

504,800

503,700

502,300

500,900

499,800

498,400

497,200

496,300

495,300

493,700

492,400

491,000

489,700

488,500

487,200

486,600

488,300

492,600

494,100

496,500

498,600

501,700

503,500

Nov.

503,700

504,600

506,000

507,000

508,200

508,900

508,300

506,400

505,000

504,000

502,900

501,700

501,300

500,300

499,800

501,100

501,300

502,100

503,800

507,000

510,300

511,100

511,100

510,900

510,900

510,700

510,500

510,100

509,100

508,500

-

Dec.

508,900

508,900

509,900

512,300

514,200

515,200

517,800

520,600

525,700

529,700

533,100

536,900

541,000

547,400

550,100

549,700

548,900

547,800

546,800

545,400

544,200

542,600

540,400

537,900

535,700

533,700

531,700

529,700

527,700

526,300

526,100

Jan.

521,600

519,800

519,800

519,600

519,000

518,600

518,000

517,200

516,400

516,200

516,800

516,800

516,400

516,000

515,800

516,200

516,800

517,400

517,400

517,200

515,600

521,600

521,800

521,600

522,000

522,600

522,600

522,400

521,400

520,800

523,200

Feb.

522,600

522,400

523,700

525,300

526,300

527,300

527,500

526,900

524,900

524,100

523,500

520,800

518,800

515,400

513,900

512,900

511,800

510,500

510,100

510,700

511,300

511,900

512,500

513,300

514,000

514,600

515,200

515,400

-

-

-

Mar.

516,000

516,200

516,000

515,400

514,600

514,200

514,200

514,800

515,200

515,600

515,600

515,800

516,000

516,200

516,200

516,200

516,000

515,800

515,800

515,600

515,600

515,800

516,000

516,200

516,800

517,200

517,200

517,200

517,200

517,200

517,200

Apr.

517,200

517,400

517,400

517,800

518,400

518,800

519,400

520,600

521,800

523,000

524,700

527,900

530,700

533,700

536,700

541,400

544,800

548,300

551,500

554,400

557,000

559,900

563,000

566,200

569,100

571,600

574,900

580,100

583,400

585,300

May

588,200

590,800

592,900

593,700

595,000

596,200

597,100

598,100

599,000

599,800

603,800

608,300

611,300

613,000

316,800

618,300

619,000

620,500

622,000

623,300

624,200

625,700

628,500

630,900

633,700

636,100

638,900

641,500

641,700

642,200

642,200

June

642,000

641,500

641,300

641, 100

641,100

641,100

640,900

640,600

640,400

640,200

640,000

640,400

641,300

642,600

644,100

645,500

647,200

648,500

648,700

648,300

648,300

647,600

647,000

646,300

645,900

645,200

644,400

643,500

642,800

642,000

July

641,100

639,800

638,500

637,600

636,100

635,000

633,900

633,000

631,900

631,100

629,800

628,500

626,700

625,500

623,900

622,600

621,600

619,900

618,300

617,300

616,200

615,100

614,100

612,600

611,100

609,200

607,900

606,200

604,300

603,000

601,500

Aug.

600,200

598,500

596,600

594,500

592,600

591,000

589,500

588,000

586,600

585,100

583,200

581,800

580,300

578,900

576,800

575,500

574,100

572,800

571,400

570,400

569,800

568,500

567,100

565,600

564,200

562,500

560,700

558,600

557,800

556,600

555,600

Sept.

554,800

553,700

552,900

552,100

550,700

549,500

548,300

547,000

545,800

544,600

542,800

540,800

539,400

537,700

536,500

535,500

534,700

532,700

531,500

530,300

528,500

526,900

525,100

523,200

521,000

518,800

516,800

514,800

513,100

511,100

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Calendar year 1950...

Sept. 30. ...............

Water year 1950-51...

Elevation 

(feet)t

-

4,467.33

-

Contents 

(acre-feet)

1

511,100

-

Change in contents 

during month 

(acre-feet)

-12,900

+5,000

+116,500

+1,800

-200

-44,500

-5,300

t Elevation at 12 p.m. Interpolated from 5 p.m. readings.
378 SACRAMENTO RIVER BASIN

North Fork Feather River near Prattville, Calif.

Location. Lat 40°10', long. 121°06', in SWi sec. 28, T. 27 H., 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. March 1914 to September 1951 (tables of daily discharge for July 1921 

to September 1936 include water diverted through Almanor-Butt Creek tunnel). June 

1905 to March 1914 at site near that of Almanor Dam.

Gage . Water-stage recorder with compound rectangular concrete weir. Altitude of gage is 

4", 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 datums.

Average discharge. 45 years (1905-10, 1911-51), 871 cfs, including diversion through 

AOjnanor-Butt creek tunnel.

Extremes . Maximum discharge during year, 2,050 cfs Dec. 19-26 (gage height, 6.19 ft); 

minimum, 2.9 cfs Jan. 4. Extremes do not include diversions through Almanor-Butt Creek 

tunnel.

1905-51: 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 during January to April 1919, and on Apr. 21, 1923.

Remarks . Records excellent. Flow regulated by Lake Almanor beginning in 1913 (see preceding page). Figures of monthly discharge show total runoff also. Water is diverted 

for power from Lake Almanor through Almanor-Butt Creek tunnel to Butt Creek.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtainea in connection with a Federal Power Commission project.

Rating table, water year 1950-51 (gage height, I 

and discharge, In cubic feet per second)

5.0 1,140

6.0 1,900

6.2 2,060

feet,

1.3 0.8

1.5 9.4

1.7 22

2.1 63

2.5 125

3.0 236

3.5 396

4.0 600

Discharge, In cubic feet per second, water year October 1950 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.

3io~ 310

285

205

162

129

191

193

193

193

196

198

200

203

200

175

125

166

198

198

200

198

168

92

37

36

37

37

36

36

*36

4,943

159

9,800

Nov.

15

^3.

16

16

15

15

14

14

14

130

198

198

196

290

404

178

45

45

45

46

45

45

45

45

45

34

11

11

11

11

-

2,205.9

73.5

4,380

Dec.

*11

11

11

11

11

12

12

13

13

13

13

13

13

14

843

1,950

1,990

2,030

2,040

2,050

2,050

2,050

2,050

2,050

2,050

1,600

710

973

973

967

979

27,526

888

54,600

Jan.

973

4T3

1.3

341

202

12

13

304

502

506

203

12

12

12

151

9.0

4.6

4.6

4.6

4.6

4.6

4.2

4.6

4.2

4.2

4.2

3.7

3.7

3.7

3.3

3.3

3,790.4

122

7,520

Feb.

3.3

3.3

3.3

3.3

3.3

3.3

149

798

,340

,510

,510

,780

.950

,940

,330

985

985

985

655

21

20

20

20

20

19

19

19

19

_

-

16,113.8

575

31,960

Mar.

19

19

19

19

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

19

19

19

19

18

18

18

18

18

18

566

18.3

1,120

Apr.

18

18

18

18

IS.

17

16

16

16

15

16

16

16

16

16

16

16

17

17

17

17

18

18

18

18

16

12

1?

12

12

-

486

16.2

964

May

31

46

*46

46

43

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

36

1,148

37.0

2,280

June

36

35

34

34

34

34

34

3333"

33

33

33

33

33

34

34

34

35

35

36

36

36

36

37

37

37

36

36

36

37

-

1,044

34.8

2,070

July

37

36

56

36

47

125

196

196

196

196

196

198

198

198

198

198

198

198

198

198

198

198

198

198

196

196

238

343

343

343

343

5,873

189

11,650

Aug.

343

343

343

343

343

343

343

326

313

313

313

313

313

313

313

253

158

118

118

118

152

228

288

253

220

218

218

220

111

49

49

7,689

248

15,250

Sept.

48

43

40

74

Z18

244

244

244

244

244

 244

244

242

242

242

242

242

242

242

242

273

346

364

462

462

462

462

462

462

462

-

8,284

276

16,430

Adjusted for diversion through Almanor-Butt Creek tunnelt

Mean 

AJ-ffc 

In.

924 

56, 820

786 

46,760

Calendar year 1950: 

Water year 1950-51:

1,274 

78,330

983 

60,470

1,443 

80, 160

878 

53,970

336 

19,990

525 

32,310

Observed

Max 2,050 Hln 2.1 Mean 136 

Max 2,050 Hln 3.3 Mean 218

731 

43,490

1,102 

67,760

1,152 

70,840

1,168 

69,510

Adjusted

Mean 98,710 Ac-ft 556,400 

Mean 158,000 Ac-ft 680,400

* Discharge measurement made on this day.

t Diversion through Almanor-Butt Creek tunnel, computed as difference In flow between the two stations on Butt Creek. There Is some unmeasured inflow between the two stations.
SACRAMENTO RIVER BASIN 379

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif.

Location. Lat 40°11', long. 121°11>, in NW£ 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 1937, October 1938 to September 1951. Pub11shed as "above tunnel No. l" 1936-40.

Sage.--Water-stage recorder. Altitude of gage is 4,400 ft (from topographic map). October 

1936 to September 1937, October 1938 to October 1948, water-stage recorder at site 1.5 

miles upstream, different datum.

Average discharge.--14 years (1936-37, 1938-51), 65.7 cfs.

Extremes.--Maximum discharge during year, 785 cfs Nov. 20 (gage height, 3.45 ft); minimum, 

28 'cfs Aug. 14-15.

1936-37,1938-51: Maximum discharge, 1,500 cfs Feb. 28, 1940 (gage height, 5.75 ft, 

site and datum then in use); minimum, 3.2 cfs Dec. 11, 1936.

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 one discharge measurement, furnished by 

Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission 

project.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge in cubic feet per second)

1.0 

1.3 

1.6

2.0 

2.5 

3.0

151

290

500

Discharge, in cubic feet per second, water year October 1950 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.

30

29

2?

30

36

37

32

31

31

31

31

31

31

31

32

32

40

38

37

36

36

35

36

41

56

110

137

111

97

*144 ~65

1,523

49.1

3,020

Nov.

64

53

49

45

48

48

45

44

42

38

36

5s

44

44

42

73

138

254

238

488

454

189

132

111

97

88

85

86

75

99

-

3,285

110

6,520

Dec.

*82

71

177

300

172

199

270

'534" 378

210

213

176

151

300

251

186

162

147

140

122

115

106

99

94

88

84

80

78

76

75

70

4.9S6

160

9,850

Jan.

65

63

70

74

67

62

62

62

62

S3

62

57

57

63

63

60

67

82

66

66

64

167

TS6

126

108

101

96

91

85

71

78

2,442

78.8

4,840

Feb.

76

82

84

203

257

*184

184

192

172

167

216

192

172

153

143

134

128

122

113

113

111

108

102

92

97

97

94

92

_

_

-

3,880

139

7,700

Mar.

91

79

73

82

76

78

76

76

76

70

71

72

78

86

92

99

96

94

99

111

124

126

122

115

132

130

134

134

138

T55

124

3,086

99.6

6,120

Apt-.

T2~5 124

136

147

153

158

160

162

179

194

192

189

192

196

T96

196

189

179

169

167

158

147

143

136

134

134

12S

162

143

130

4,819

161

9.5SO

Calendar year 1950: Max 488 Mln 24 Mean 84.6

May

126

117

*126

151

134

128

122

122

124

130

Teo" 179

145

132

128

130

134

138

136

128

126

120

115

111

106

102

101

96

91

85

li

3,822

123

7,580

June

76rz

71

69

66

65

63

60

58

53

51

51

50

48

47

46

45

44

43

42

42

41

40

40

39

38

37

35

35

35

-

1,502

50.1

2,980

July

35

35

34

33

33

33

32

32

31

30

30

30

31

31

31

31

31

31

31

30

30

30

30

30

30

30

30

29

25

29

29

961

31.0

1,910

Aug.

30

30

29

29

29

29

29

28

28

28

28

28

28

28

28

28

28

29

30

32

34

34

*36

35

34

33

33

34

34

33

32

948

30.6

1,880

Sept.

32

32

32

32

30

30

30

30

30

*30

32

32

33

33

34

34

35

35

35

35

34

35

35

35

35

37

38

42

44

45

-

1,026

34.2

2,040

Ac-ft 61,230

Water year 1950-51: Max 488 Mln 28 Mean 88.4 Ac-ft 64,000

Peak discharge (base, 220 cfs). Oct. 27 (l a.m.) 248 cfs (2.37 ft); Oct. 30 (5:30 a.m.) 264 cfs 

(2.42 ft); NovT 20 (8-.3O p.m.) 785 cfs (3.45 ft); Dec. 3 (12 p.m.) 490 cfs (2.98 ft); Dec. 8 (9 a.m.) 

428 cfs (2.85£t); Dec. 14 (11 a.m.) 437 cfs (2.87 ft); Feb. 5 (5 a.m.) 297 cfs (2.52 ft); Feb. 11 

(4 p.m.) 251 cfs (2.38 ft).

* Discharge measurement made on this day.
380 SACRAMENTO RIVER BASIN

Butt Creek below Alraanbr-Butt Creek tunnel, near Prattville, Calif.

Location. Lat 40°11' , long. 121°11' , in NW£ sec. 22,, T. 27 N. , R. 7 E., on right bank 

4UU rt downstream from outlet of tunnel from Lake Alraanor to Butt Creek and 2.2 miles 

southwest of Prattville.

Drainage area. 67.3 sq mi.

Records available . October 1938 to September 1951. Published as "below Tunnel No. l"

193B-4U.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 4,400 ft (from topographic map).

Average discharge. 13 years, 711 cfs.

Extremes. Maximum discharge during year, 1,640 cfs Nov. 20 (gage height, 3.81 ft); minimum, 59 cfs Nov. 6.

1938-51: Maximum discharge, 2,170 cfs Mar. 30, 1940 (gage height, 4.37 ft); minimum, 34 cfs Mar. 24, 1948.

Remarks.--Records excellent. 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, furnished by Pacific Gas & Electric Co., obt-ained 

in connection with a Federal Power Commission project.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.6

.9

1.4 227

2.0 464

3.0 1,020

3.5 1,380

Discharge, In oublo feet per second, water year October 1950 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.

956

956

956

956 

956

93g~ 963

956

956

956

956

950

950

95O

950

950

950

950

950

950

950 

950

950

950

956

783

154

123

107 

*154

77

25,227

814

50,040

Nov.

76

68

64

 5T 61 

524

913

913

913

913

913

913

919

919

913

938

996

1,080

1,090

1,320

1,350 

1,060

1,000

989

976

963

956

944

944 

963

-

24,652

82r

48,900

Dec.

956

950

1,040

1,180 

1,050

1,070

1,140

935

338

278

250

212

182

319

282

218

193

174

165

147

137 

130

120

118

114

570

931

938

938 

931

925

16,931

546

33,580

Jan..

925

925

925

931 

931

913 9~T9~

919

919

919

919

919

913

919

919

919

925

950

931

931

931 

1,050

1,020

989

976

970

963

956

950 

938

944

29,138

940

57,790

Feb.

944 930"

950

1,070 

J^120

*1,050

1,050

1,060

1,040

1,040

1,080

1,060

1,040

1,030

1,020

1,000

996

989

982

982

982 

976

970

963

963

963

956

956

-

-

28,182

1,006

55,900

Mar.

956

944

938

938 

931

931

925

925

931

925

919 9"2"5~

931

938

944

956

950

950

956

976

982 

982

989

989

996

996

996

996

1,010 

1,010

996

29,731

959

58,970

Apr.

996

996

1,010

1,020 

1,030

1,030

1,030

1,030

1,050

1,070

711

205

212

218

218

221

212

199

190

182

174

163

160

152

152

150

147

T7?

160 

147

-

14,414

480

28,590

Hay

142

135

*5l4

1,020 

1,020

1,010

1,000

1,000

1,010

654

218

202

188

171

163

616

1,020

1,020

1,020

1,020

1,020 

662

152

147

140

137

135

532

970 

963

963

18,964

612

37,610

June

956 936"

956

950 

950

950

950

950

950

950

944

552

77

74

71

71

70

68

503

944

944 

950

950

950

950

950

950

950

950 

950

-

22,386

746

44,400

July

950

54T

944

944 

944

944

944

938 938"

938

938

938

938

944

944

944

944

944

944

944

944 

950

950

950

950

950

950

944

938 

938

938

29,252

944

58,020

Aug.

938 936~

938

938 

938

938

938

938

938

938

938

938

931

931

931

931

931

931

931

931

931 

931

938

938

938

938

931

931

931 

931

931

28,973

935

57,470

Sept.

931

53T

931

931 

931

931

925 9"2"5~

925

*925

925

925

925

925

925

925

925

925

925

925

925 

925

925

925

925

925

925

925

925 

925

925

27,786

926

55,110

Calendar year 195O: Max 1,35O Mln 49 Mean 717 Ao-ft 518,900

Water year 1950-51 : Max 1,350 Min 61 Mean 810 Ao-ft 586,400

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 381

Indian Creek near Crescent Mills, Calif.

Location.--Lat 40°05', long. 120°56', In SW^ 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 ml.

Records available.--January 1906 to December 1909, September 1911 to March 1918, October 

isau to beptemcer 1951.

Gage.--Water-stage recorder. Altitude of gage is 3,500 ft (from topographic map). Prior 

to March 1918, staff gage at site 800 ft upstream at different datum.

Average discharge. 30 years (1906-9, 1911-17, 1930-51), 503 cfs.

Extremes. Maximum discharge during year, 6,600 cfs Nov. 21 (gage height, 11.74 ft); mini- 

 mum, 4.4 cfs Aug. 19.

1906-9, 1911-18, 1930-51: Maximum discharge, 14,000 cfs Feb. 28, 1940 (gage height,

16.07 ft), from rating curve extended above 4,000 cfs by logarithmic plotting; minimum,

1.7 cfs, Aug. 25, 1931.

Remarks.--Records good. Diversions above station for irrigation in Indian and Genesee 

valleys.

Rating table, water year 195O-51 (gage height, in feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Aug. 20 to Sept. 30)

1.3

1.4 

1.7 

2.0 

2.5

5.7

8.6

20

41

90

3.0 

3.5 

4.0 

4.5 

5.0

156

239

350

505

705

6.0

7.0

9.0

11.2

1,220

1,900

3,620

5,950

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

Oct.

27

27

27

31

35

59

7 40

8

9

10

11

12

13

14

15

16

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

47

57

51

51

Nov.

260

205

167

148

156

127

117

113

108

102

100

49 97

48 96

47! 109

50

51

54

54 

54

55

65

62

65

74

112

208

567

514

248

426

*3TB"

3,211

104

6,370

115

527

522

859 

1,970

2,860

5,840

4,670

2,540

1,540

1,180

950

765

655

547

532

27,533

918

54,610

Dec.

541

'sTs 501

3,500

5,850

2,500

2,450

2,670

3,210

2,660

2,290

2,560

2,110

2,220

5,290

2,740

2,570

1,750 

1,500

1,520

1,160

1,020

915

825

746

678

605

558

526

526

512]

52,876

1,706

104,900

Jan.

448

435

438

441

429

590

567

561

556

370

390

564

529

334

590

425

457

870 

880

73 

682

1,450

2,520 g* ?50

1,990

1,670

1,460

1,530

1,200

1,030

900

25,800

832

51,170

Feb.

825

775

750

920

1,310

*1,750

1,870

2,340

2,510

2,070

2,280

2,540

77550

1,970

1,730

1,540

1,580

1,300 

1,170

1,100

1,080

1,000

950

765

805

785

755

718

_

-

39,088

1,596

77,550

Mar.

678

624

547

550

564

585

615

583

674

656

607

587

607

692

800

905

985

975 

940

955

975

1,060

1,070

1,040

1,050

1,050

1,020

995

975

1,000

990

25,292

816

50,170

Apr.

950

900

875

880

910

950

980

,000

,040

,080

,120

,100

,070

,060

,060

,060

,100

,150 

1,100

1,000

920

855

790

756

725

790

825

910

1,000

1,010

-

28,944

965

57,410

May

960

945

*905

960

980

995

1,050

1,020

965

920

920

970

980

970

940

875

820

825 

825

800

755

710

656

615

564

522

498

457

414

417

556

24,589

793

48,770

June

759" 319

268

250

230

217

203

190

185

159

159

149

142

139

125

118

108

98 

87

84

92

94

103

104

112

106

90

87

69

66

-

4,440

148

. 8,810

July

55

47

44

45

47

51

53

43

58

25

20

18

15

*14

18

15

16

16 

14

13

11

10

10

8.6

8.5

9.6

11

11

11

11

12

720.5

25.2

1,450

Aug.

11

9.2

11

11

9.2

9.2

8.0

8.0

7.6

7TS

11"9.2

12

9.6

11

12

12

12 

9.2

15

12

13

14

14

13

15 T4"

11

14

14

14

552.4

11.4

699

Sept.

12

15

12

15

12

12

14

15

15

*15

12

9.6

9.0

9.6

9.6

8.3

ll

12 

9.9

11

15

14

14

15

15

15

14

16

19

20

-

590.9

15.0

755

Calendar year 1950: Max 5,840 Mln 4.2 Mean 619 Ac-ft 447,800

Water iter year year 1950-51: lSbu-bi: Max Max 5,840 5,«4U Min win 7.6 7.6 Mean Mean 639 639 Ac-ft Ac-it 462,600 462,euu

Peak discharge (base. 1,100 cfs). Nov. 21 (7 p.m.) 6,600 cfs (11.74 ft); Dec. 4 (10 p.m.) 4,770 

's 110-16 ft); Dec. 9 (1 p.m.) 3,540 cfs (8.69 ft); Dec. 15 (12 m.) 3,470 cfs (8.83 ft); Jan. 25 

> p.m.) 2,680 cfs (7.96 ft); Feb. 8 (6 p.m.) 2,580 cfs (7.84 ft); Apr. 18 (l a.m.) 1,170 cfs 

;.9l ft).

(3 p...... .

(5.91 ft).

* Discharge measurement made on this day.
382 SACRAMENTO RIVER BASIN

Spanish Creek at Keddie, Calif.

Location. Lat 40°00'05", long. 120°57'20", in NE£ sec. 27, T. 25 N., R. 9 E., on right 

oann: 200 ft upstream from Blackhawk Creek and 0,9 mile southeast of Keddie.

Drainage area. 184 sq mi.

Records available. October 1933 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,250 ft (from topographic map). Octo5er 1911 to September 1933, staff gage at site 1.2 miles downstream at different datum.

Average discharge. 18 years (1933-51), 245 cfs.

Extremes. Maximum discharge during year, 5,330 cfs Nov. 20 (gage height, 8.11 ft); minimum, 18 cfs July 28.

1911-51: Maximum discharge, 12,400 cfs Dec. 11, 1937 (gage height, 12.43 ft), from 

rating curve extended above 4,400 cfs by logarithmic plotting; minimum, 3.8 cfs Aug. 

12, 1934.

Remarks. Records good. Diversion above station for irrigation in American Valley. 

Revisions (water years). tf 1041: 1938(M).

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.2 20

1.5 34

1.9 64

2.3 112

Oct. 1 to Nov

2.7 191

3.1 325

3.5 510

4.0 790

Nov. 21 to Sept. 30

5.0 1,680

6.0 2,710

7.0 3,860

1.2 20

1.5 34

1.8 55

2.1 85

2.5 152

3.0 300

3.5 518

4.0 805

5.0 1,650

6.0 2,690

7.0 3,860

Discharge, in cubic feet per second, water year October 1950 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.

30

3T

35

33

38

60

44

47

44

44

44

44

42

43

41

41

45

46

39

38

37

36

38

44

73

213

425

337

329

604

*ZW

3,205

103

6,360

Nov.

165

132

118

109

98

92

86

82

78

74

74

73

77

98

104

552

791

2,090

1,820

2,790

5,440

1,180

680

485

383

319

276

246

Dec.

259

l,'5Bo" 221

2,430

1,090

972

1,130

1,770

1,680

1,050

1,140

942

716

1,630

1,650

1,120

826

674

581

488

430

387

346

323

300

279

255

246

227 1 236

*262

-

17,001

567

33,720

246

230

25,327

817

50,240

Jan.

212

206

203

221

195

181

174

174

171

T9F

206

187

174

171

224

239

297

1,420

680

449

666

2,240

1,370

920

728

630

581

523

463

400

358

14,858

479

29,470

Feb.

334

315

319

833

1,500

1,020

942

980

*826

772

1,260

1,350

972

786

669

581

544

513

444

430

421

387

362

334

330

327

311

296

_

_

-

18,158

648

36,020

Mar.

282

262

246

?55

279

290

342

311

444

330

300

293

319

378

430

473

ITT

404

382

404

444

435

408

395

404

404

387

374

400

404

358

11,281

364

22,380

Apr.

338

327

342

378

408

435

444

454

478

518

498

468

473

493

483

468

449

412

378

362

350

327

308

290

290

293

272

BTJB"

444

350

12,038

401

23,880

May

319

*308

327

560

STT

554

508

459

444

435

498

468

421

382

346

334

330

327

315

296

279

268

255

246

233

227

218

200

181

176

169

10,627

343

21,080

June

162 TTff

139

137

133

122

117

117

113

110

106

100

93

98

93

93

92

82

73

73

74

73

72

70

71

66

63

61

61

5J7

2,869

95.6

5,690

July

59

5T

53

49

47

48

46

46

46

45

43

41

41

*39

38

36

36

35

33

31

30

31

31

29

28

30

30

30

30

31

25

1,193

38.5

2,370

Aug.

26

27

25

24

25

25

24

24

24

24

22

22

24

24

24

23

20

2S

22

28

31

32

35

35

32

30

29

27

27

27

28

810

26.1

1,610

Sept.

27

30

29

30

29

29

28

25

25

*24

24

22

21 rs

23

25

30

31

30

30

30

29

29

29

28

28

28

28

29

32

825

27.5

1,640

Calendar year 1950 : Max 3,440 Mln 15 Mean 342 Ac-ft 247,900

Water year 1950-51 : Max 3,440 Hln 20 Mean 324 Ac-ft 234,500'

ft)j

l,99o"cfs (5.34 ftj!

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 383

Bucks Creek Reservoir near Bucks Ranch, Calif.

Location.--Lat 39°54', long. 121°12', in NW£ sec. 33, T. 24 N., R. 7 E., in intake tower 

Mo. a above dam on Bucks Creek, 2 miles northwest of former Bucks Ranch,and 15 miles 

west of Quincy.

Drainage area. 28 sq mi.

Records available.--October 1928 to September 1951.

Sage.--Water-stage recorder. Datum of gage is 5,000 ft above mean sea level (levels by 

leather River Power Co.); gage readings have been reduced to elevations above mean sea 

level.

Extremes. Maximum contents during year, 103,200 acre-ft May 27, 28 (elevation, 5,155.7 ft); 

minimum, 71,200 acre-ft Sept. 30 (elevation, 5,137.1 ft).

1928-51: 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 ft (sill of 

outlet gate) and 5,154.85 ft (spillway crest) above mean sea level. Released water 

flows down Bucks Creek to diversion dam, where it enters tunnel that discharges into 

Grizzly Creek, thence to Bucks Creek power plant. Records show total contents at 12 

p.m. of which 274 acre-ft are not available for release.

Cooperation.--Record of contents, furnished by Pacific Gas & Electric Co., obtained in 

connection with a Federal Power Commission project.

Contents, in thousands of acre-feet, water year October 1950 to September 1951

Day

1

2

3

4

5

e

7

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.

79.5

79.2

78.7

78.4

78.0

77.5

77.1

76.6

76.3

76.1

75.9

75.6

75.4

75.1

74.9

74.7

74.4

74.3

74.0

73.9

73.6

73.4

72.9

72.7

73.0

74.4

75.0

75.9

76.3

76.7

77.2

Nov.

77.6

77.8

77.7

77.3

77.0

76.6

76.1

75.7

75.2

74.9

74.7

74.6

74.4

74.1

73.8

74.0

74.9

77.2

78.4

81.4

83.3

83.9

84.4

84.9

85.3

85.7

86.1

86.4

86.8

87.1

-

Dec.

87.5

87.8

88.8

89.7

90.1

91.2

92.8

94.2

94.1

95.7

96.7

97.0

97.4

97.8

98.1

98.6

98.8

98.7

98.7

98.6

98.4

98.1

97.9

97.8

97.6

97.2

97.0

96.7

96.4

96.1

95.8

Jan,

95.5

95.2

94.9

94.7

94.4

94.1

93.7

93.4

93.0

92.9

92.8

92.3

92.0

91.8

91.7

91.5

91.5

91.7

91.5

91.2

91.1

91.2

91.2

91.0

90.6

90.3

90.1

89.8

89.6

89.5

89.4

Feb.

89.4

89.1

89.2

89.6

90.3

90.7

90.8

90.7

90.5

90.3

90.3

90.2

90.1

89.8

89.5

89.1

89.0

88.8

88.4

88.3

88.3

88.3

88.2

88.2

88.1

88.1

88.1

87.9

.

_

-

Mar.

87.9

87.8

87.7

87.7

87.8

87.9

87.9

87.9

87.9

87.8

87.7

87.6

87.5

87.5

87.4

87.3

87.2

87.1

87.0

86.9

86.8

86.2

85.7

85.6

85. Z

85.0

84.8

84.4

84.4

84.0

83.9

Apr.

83.9

83.8

83.5

83.3

83.2

83.3

83.5

83.9

84.4

84.9

85.4

85.9

86.4

87.0

87.6

88.2

88.8

89.4

89.9

90.4

90.9

91.5

91.9

92.4

93.0

93.4

93.8

94.7

95.3

95.5

-

May

95.9

96.2

96.9

97.2

97.4

97.5

97.6

97.8

98.1

98.4

99.1

99.4

99.8

100.2

100.5

100.7

101.0

101.3

101.8

102.0

102.2

102.4

102.6

102.8

103.0

103.1

103.2

103.2

103.1

103.0

103.0

June

103.0

102.9

102.8

102.8

102.7

102.6

102.6

102.5

102.1

101.7

101.4

101.0

100.6

100.2

99.7

99.4

99.0

98.7

98.2

97.8

97.4

97.3

97.3

97.3

97.4

97.5

97.5

97.0

96.6

96.2

-

July

95.7

95.4

94.9

94.6

94.4

94.1

93.9

93.7

93.6

93.3

93.1

92.7

92.2

92.2

92.1

92.1

91.9

91.7

91.4

91.2

90.9

90.6

90.1

89.6

89.1

88.6

88.2

87.9

87.6

87.4

87.1

Aug.

86.9

86.6

86.3

86.1

85.7

85.4

85.0

84.4

83.9

83.4

83.2

82.9

82.7

82.2

81.7

81.4

81.1

80.9

80.6

80.4

80.2

79.9

79.6

79.4

79.1

78.9

78.6

78.4

78.3

78.4

78.4

Sept.

78.4

78.5

78.4

78.3

78.0

77.8

77.5

77.2

77.1

76.7

76.2

75.7

75.3

75.0

74.8

74.6

74.4

74.2

73.9

73.7

73.4

73.1

72.9

72.5

72.3

72.1

71.9

71.6

71.4

71.2

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31. ...................

Calendar year 1950 .......

Apr . 30 ....................

May 51....................

Sept. 30. ...................

Water year 1950-51 .......

Elevation 

(feet)t

5,142.8

5,151.6

-

5,151.45

5,155.6

5,137.1

-

Contents 

(acre-feet)

95,800

-

95,500

103,000

71,200

-

Change in contents 

during month 

(acre -feet)

+8,700

+25,900

+11,600

+7,500

-7,200

-8 , 300

t Elevation at 12 p.m.
384 SACRAMENTO RIVER BASIN

North Fork Feather River at Big Bar, Calif.

Location. Lat 39°48', long. 121°27', in NEir sec. 6, T. 22 N. , R. 5 E. , on left bank

Between railroad and highway bridges, 0.2 mile downstream from Big Bar, and 6 miles upstream from intake of power plant at Big Bend.

Drainage area.--1,945 sq mi.

Records available. February 1911 to August 1930, October 1931 to September 1937, October 

isay to septemoer 1951.

Gage. Water-stage recorder. Altitude of gage is 1,320 ft (from topographic map). Prior 

tTo Oct. 1, 1937, at site 0.8 mile upstream at different datum.

Average discharge . 35 years (1911-12, 1913-20, 1921-30, 1931-37, 1939-51), 2,686 cfs.

Extremes. Maximum discharge during year, 25,700 cfs Nov. 20 (gage height, 17.89 ft); minimum not determined.

1911-37, 1939-51: Maximum discharge, 66,900 cfs Dec. 11, 1937 (gage height, 29.7 ft 

at present site, from floodmarks), from rating curve extended above 34,000 cfs by logarithmic plotting; minimum daily, 235 cfs Oct. 31, 1932.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Flow regulated by Lake Almanor (see p. 377 ) , Bucks Creek Reservoir (see p. 383 ), Butt 

Valley Reservoir, power plants, and diversions.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Revisions (water years). W 931: 1940.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

2.2 735

3.0 1,090

5.0 2,320

7.0 4,210

10.0 8,550

15.0 18,200

Discharge, in cubic feet per second, water year October 1950 to September 1951

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

25

26

27

28

29

30

31

Total,

Mean

Ac-ft

Oct.

1,780

2,000 

1,960

1,740

1,800

1,810

1,640

1,450

1, 7S6

1,680

1,580

1,860

1,760 

1,740

al,530

al,960

1,680

1,730

1,810

1,770

1,760

1,480 

1,820

2,030

a2,100

a3,880

a6,000

a6, OOO

a6,000

a3,800

a3,620

73,550

2,373

145,900

Nov.

a2,670

a2,600 

*a2,370

al,310

a765

al,270

1,550

1,970

1,630

2,220

al,980

a2,190

a2,430 

2,210

2,660

4,520

7,380

11,500

8,720

alS.OOO

a!4,200

a8,720 

a6,900

5,590

4,500

3,620

3,620

3,730

3,430

3,560

137,815

4,594

273,400

Dec.

3,510

3,590 

6,960

13,500

10,700

8,900

9,980

12,600

11,500

8,440

a7,700

a7,250

a6,200

a9,320

alO,400

all, 500

alO,900

a8,700

8,460

8,120

7,360

6,520 

5,530

5,450

5,130

5,220

4,220

4,350

4,590

4,430

3,950

Z34,720

7,572

465,600

Jan.

a3,700

a4,200 

a3,700

a2,000

a3,000

a3,100

a2,200

a2,800

a3,000

a3,700

a4 , 500

a4,000

a3,000 

al,400

a2,500

3,950

4,460

6,820

5,590

4,660

4,820

10,800 '9',856

8,410

7,450

6,670

5,670

5,430

5,480

4,680

4,330

L45.870

4,705

Feb.

3,970

4,100 

4,330

5,620

a9,400

a8,100

*a7,200

a8,400

a9,200

a9,300

alO, 500

all, 500

alO, 500 

9,760

8,720

7,550

6,910

6,310

6,760

5,120

,800

,540 

,490

a ,200

a ,200

a ,300

,030

a3.900

_

-

187,810

6,704

289,300 372,300

Mar.

a3 , 900

a3,500' 

3,630

3,490

3,550

3,220

3,990

3,820

3,460

4,210

3,210

3,700

3,940 

4,190

4,450

4,420

4,420

4,360

4,460

4,440

4,690

4,800 

4,790

4,670

4,470

4,660

4,440

4,630

4,390

4,310

4,280

128,490

4,145

254,900

Apr.

4,100

4,090 

4,110

4,220

4,310

3,960

3,910

2,860

3,450

4,240

4,480

4,320

4,360 

3,410

3,460

4,010

4,120

4,110

4,120

4,030

3,770

2,660

3,026

3,240

3,140

2,920

3,050

3,460

3,070

3,720

-

111,720

3,724

221,600

May

3,640

3,510 

3,740

*4,240

4,240

4,190

4,040

4,060

4,230

4,260

4,320

4, 085

3,880 

3,850

4,000

4,200

4,190

4,020

3,880

2,990

3,120

3,700 

3,620

3,540

3,560

3,580

3,370

3,140

a3,200

a2,500

a2,400

115,290

3,719

228,700

June

a2,700

a2,300 

a2,400

a2,200

1,950

1,780

1,760

1,820

1 640

1,680

1,600

1,420

1.210 

1,420

1,430

1,340

1,340

1,830

2,140

2,000

1,920

1,950 

1,960

1,490

1,860

1,880

1,990

1,890

1,980

1,960

-

54,840

1,828

108,800

July

1.700

1,930 

1,830

1,800

1,760

1,820

1,760

1,830

1,840

1,840

1,850

1,820

1,780 

1,800

1,820

1,850

1,800

1,780

1,870

1,850

1,840

1,840 

1,840

1,780

1,780

1,840

1,780

1,840

1,840

1,870

1,840

56,420

1,820

111,900

Aug.

1,800

1,790 

1,790

1,800

1,780

1,800

1,830

1,840

1,880

1,870

1,820

1,830

1,880 

1,730

1,700

1,720

1,720

1,740

1,720

1,720

1,700

1,650 

1,610

1,580

1,570

1,510

1,620

1,530

1,490

1,616

1,710

53,540

1,727

106,200

Sept.

1,480

1,510 

1,480

1,540

1,920

1,870

*1,830

1,630

1,510

1,570

1,610

1,710

1,770 

1,690

1,720

1,570

1,680

1,520

1,770

1,960

1,840

1,550 

1,380

1,860

2,160

2,120

2,040

1,900

1,820

1,310

-

51,320

1,711

101,800

Calendar year 1950: Max 18,000 Min 765 Mean 3,490 Ac-ft 2,527,000

Water year 1950-51: Max 18,000 Min 765 Mean 3,702 Ac-ft 2,680,000

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for downstream stations and Cresta 

powerhouse.
SACRAMENTO RIVER BASIN 385

Concow Creek near Yankee Hill, Calif.

Location. Lat 39°46', long. 121°32', in NEi sec. 16, T. 22 N., R. 4 E., on left bank 

above 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 1951.

Gage. Water-stage recorder and concrete control (dam crest). Altitude of gage is 1,850 ft 

Tfrom topographic map). Prior to 1929 at datum 1.0 ft lower.

Average discharge.--24 years, 27.2 cfs, combined flow of Concow Creek and Spring Valley 

ditch.

Extremes.--Maximum discharge during year, 982 cfs Dec. 3 (gage height, 3.08 ft), from rating curve extended above 160 cfs by computations of flow over dam; no flow most of year.

1927-51: Maximum discharge, 2,060 cfs Jan. 21, 1943 (gage height, 5.35 ft, from 

floodmark in well), from rating curve extended above 160 cfs by computations of flow 

over dam; no flow for many months in each year.

Remarks.--Records good. On Sept. 30, 1950, storage in Lake Wilenor (capacity, 8,200 acrert), was 5,450 acre-ft, and on Sept. 30, 1951, it was 4,850 acre-ft. Records show flow 

passing diversion dam; for total flow out of reservoir, add that of Spring Valley ditch 

(see following page).

Cooperation.--Water-stage recorder graph, furnished by Table Mountain and Thermalito Irrigation Districts, obtained in connection with a Federal Power Commission project.

Revisions (water years|.--W 931: 1928(M), 1940.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0

1.0

3.6

1.0 

2.0 

2.5

182

536

738

Discharge, in cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

T5

o

0

o

0

0

0

0

0

0

o

o

0

0

.2

.2

164

179

436

427

141

78

52

52

38

38

40

40

40

-

1,725.4

57.5

3,420

Dec.

40

40

455 3"4?

130

107

173

247

274

135

121

96

80

278

182

118

86

70

54

47

42

35

35

35

35

35

35

33

33

33

12

3,444

111

6,830

Jan.

0

0

o

0

5.5

13

14

15

16

68

155

124

83

70

116

141

420

528

2OO

130

285

523.

212

138

110

91

78

67

65

52

42

3,817.5

123

7,570

Feb.

40

38

47

210

410

170

113

86

*70

70

166

191

118

93

80

70

67

62

52

52

57

38

33

25.

26

35

42

42

_

_

-

2,495

89.1

4,950

Mar.

42

35

26

40

83

138

155

116

170

TT6

86

73

62

52

42

40

33

28

24

22

19

16

12

6.8

5.0

5.0

4.5

ii

4.0

4.5

3.6

1,466.6

47.3

2,910

Apr.

3.2

3.2

3.6

4.5

5.0

6.8

13

18

11

.2

.1

O

T5

0

0

0

o

0

o

o

0

3.9

6.1

6.1

6.1

6.8

8.5

39

36

16

-

197.1

6.57

391

May

16

16

*21

52

33

33

29

26

22

19

21

19

18

18

16

15

15

14

12

12

3.2

0

5.1

5.0

5.0

5.0

5.0

1.8

1.0

1.2

.6

457.9

14.8

908

June

0

o

0

July

0

o

o

Aug.

0

0

0

Sept.

0

0

o

Calendar year 1950: Max 700 Min 0 Mean 26.4 Ac-ft I9,llo

Water year 1950-51: Max 579 Min o Mean 37.3 Ac-ft 26,980

* Discharge measurement made on this day.
386 SACRAMENTO RIVER BASIN

Spring Valley ditch near Yankee Hill, Calif.

Location. Lat 39°46', long. 121°32', in NEij sec. 16, T. 22 N. , R. 4 E., on right bank 

JUST; downstream from diversion dam and 4 miles north of Yankee Hill post office.

Records available. October 1927 to September 1951. 

Average discharge.--24 years, 10.0 cfs.

Gage.--Water-stage recorder. Prior to July 21, 1934, staff-gage at same site and datum.

 ntitude is 1,840 ft (from topographic map).

Extremes.--Maximum daily discharge during year, 24 cfs Aug. 29-31; no flow on many days.

 1?27-51: Maximum daily discharge, 49 cfs Oct. 25-27, 1928; no flow at times during 

most years.

Remarks.--Records good except those below 10 cfs, which are poor. Ditch diverts from left

 Dame of Concow Creek (see preceding page) 300 ft downstream from Lake Wilenor; water 

used for power development in Lime Saddle and Coal Canyon plants of Pacific Gas & Electric Co., and for irrigation in Table Mountain and Thermalito Irrigation Districts.

Cooperation. Water-stage recorder graph, furnished by Table Mountain and Thermalito Irri-

 gation Districts, obtained in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1950 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.

21

5T

20

17

10

4.9

6.3

13

18

19

19

19

19

19

19

19

7.6

4.1

5.2

10

17

19

19

20

15

0

tr

0

0

0

0

381.1

12.3

756

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

tr

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

o

13

T.8

11

9.5

7.3

4.0

2.5

_

-

55.1

1.97

109

Mar.

2.3

3.8

8.8

12

4.9

2.8

2.7

2.7

2.8

2.8

3.7

4.8

5.9

9.3

11

11

11

11

11

11

11

10

10

12

13_

13

9.2

0

tr

0

0

213.5

6.89

423

Apr.

0

tr

0

0

0

0

0

8-

5.2

8.8

I 7

I'

} 

):

89.0

2.97

177

May

2

1.8

*1.6

1.2

.8

.7

.7

.6

75

.6

)'

}'

I'

I"

58.6

1.89

116

June

2

2

1.9

1.8

T7S

1.9

1.9

1.9

2.0

2.0

2.1

2.2

2.2

2.3

2.4

2.6

2.8

3.0

3,3

3.3

3.3

3.4

3.4

3.5

3.5

3.6

3.6

3.7 3T7-

3.7

-

80.8

2.69

160

July

3.8

3.8

3.8

3.8

3.8

3.8

3.7

3.7

3.7

3.7

3.7

3.7

3.8

3.8

*3.8

3.8

3.7

3.7

3.6

3.6

3.5

5TT

ll

8.4

9.9

11

7.4

8.1

13

17

TF

184.2

5.94

365

Calendar year 1950: Max 34 Kin 0 Mean 6.30 Ac-ft 4,560

Aug.

14

IF

15

17

18

18

18

18

17

17

16

15

16

18

19

19

19

19

19

19

18

17

17

17

17

19

20

23

24

tt

24

566

18.3

1,120

Sept.

21

20

18

18

19

20

22

23

27

23

*22

22

22

22

22

22

22

22

22

22

22

22

22

22

22

18

17

IF

20

20

-

631

21.0

1,250

Water year 1950-51: Max 24 Min 0 Mean 6.19 Ac-ft 4,480

* Discharge measurement made on this day.

Note. Ho gage-height record Apr. 11 to July 21j discharge computed on basis of two discharge 

measurements, occasional staff-gage readings, and notes by ditch tender.
SACRAMENTO RIVER BASIN 387

West Branch Feather River near Yankee Hill, Calif.

Location (revised) Lat 39°41'55", long. 121°33'40", in SE£ sec. 6, T. 21 N., R. 4 E., 

on ngm; Daruc euO ft above highway bridge, 1.7 miles downstream from Concow Creek, and 

4.9 miles southeast of Paradise.

Drainage area.--145 sq mi.

Records available.--September 1930 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,100 ft (from topographic map).

Average discharge.--21 years, 330 cfs.

Extremes. Maximum discharge during year, 8,840 cfs Nov. 20 (gage height, 17.93 ft); minimum, 3.1 cfs Aug. 29.

1930-51: Maximum discharge, 21,400 cfs Dec. 11, 1937 (gage height, 30.3 ft), from 

rating curve extended above 15, nOO cfs; minimum, 0.3 cfs Jan. 8. 1937 (gage height, 1.69 

ft).

Remarks. Records good except those for period of no gage-height record, which are fair. 

Spring Valley ditch (see p. 386 ) diverts water from Concow Creek below Lake Wilenor 

(capacity, 8,000 acre-ft) for power development and irrigation. Dewey, Miners, and 

Hendricks Canals divert from headwaters of West Branch Feather River into Butte Creek 

basin (see p. 387) for power development in De Sabla and Centerville plants of Pacific 

Gas & Electric Co. Round Valley Reservoir (capacity, 1,285 acre-ft) and Philbrook Reservoir (capacity, 4,875 acre-ft) provide storage on headwaters for these three canals.

2.1

2.2

2.3

2.4

2.6

2.6 

4.2

6.8

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

2.9 

3.2

3.6 

4.0 

4.5

Oct. 1 to Jan. 17

96

148

225

5.0 

5.5 

6.0 

7.0 

8.0

322

439

576

930

1,360

9.0 1,830

10.0 2,390

11.0 3,000

12.0 3,740

15.0 6,200

Jan. 18 to Sept. 30

4.0 148

4.5 231

5.0 348

5.5 482

6.0 626

7.0 948

8.0 1,340

9.0 1,830

Note. Same as preceding 

table below 4.0 and above 

9.0 ft.

Discharge, In cubic feet per second, water year October 1950 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.

5.8

5.8

5.8

6.0

6.8

66

14

6.0

4.8

475

5.0

4.8

5.0

5.0

5.0

5.5

7.7

14

11

6.3

5.8

518

6.0

6.8

13

838

710

1,020

777

1,270

360

5,198.5

168

10,310

Nov.

259

209

187

158

130

107

96

*90

84

87

69

ISB" 67

124

116

1,410

2,270

3,850

2,490

6.100

4,800

1,780

1,120

838

677

564

523

482

397

469

29,658

989

58,830

Dec.

462

385

5,580

3,540

*1,500

,570

,220

,150

,940

,600

,600

,280

,020

,890

,220

,450

,120

934

805

691

606

540

485

442

414

590

556

529

314

509

21 '1

59,011

1,258

77,380

Jan.

258

225

281

312

261

243

229

223

214

59T

850

564

592

535

504

549

1,520

2,680

1,200

836

1,670

5.720

1,646

1,300 i.eso

924

833

750

680

596

555

25,966

838

51,500

Feb.

504

471

5TO

2,020

5,170

1,680

1,350

1,250

*1,080

1,030

2,190

1,990

1,360

1,120

979

875

814

766

683

659

686

632

611

569

552

587

558

544

_

_

-

29,258

1,044

57,990

Mar.

516

490

460

566

685

849

849

721

979

TSS

620

572

572

605

625

617

599

549

552

552

584

605

569

555

566

552

532

482

504

468

422

18,541

598

56,780

Apr.

405

411

440

485

530

566

608

638

702

795

782

756

769

769

715

718

662

596

566

544

527

496

482

462

450

427

387

6TO

504

405

17,255

575

34,220

May

390

582

*508

559" 788

611

590

560

605

652

779

605

552

488

482

496

516

504

430

414

397

374

353

328

516

516

298

276

242

250

221

14,288

461

28,340

June

TSB" 205

164

163

155

123

117

111

99

90

86

84

75

74

72

71

63

60

54

46

41

36

53

28

24

23

20

20

18

ii

2,555

77.8

4,650

July

14

17

12

9.0

8.5

8.3

7.1

7.4

6.0

5.8

5.8

5.8

5.8

5.5

*5.5

5.2

5

5

5

5

5

5

5

5

4.5

4.5

4.5

4.5

4.2 4-72

4.2

199.1

6.42

595

Aug.

4.2

g4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

4.2

g4.2

4.2

4.2

4.2

4.5

4.5

4.5

«g4.5

4.0 TTO"

4.0

4.5

4.2

4.0

4.2

4.2

4.8

5.5

5.8

154.4

4.54

267

Sept.

5.8

5T5

4.8

4.5

4.0

4.0

4.2

4.5

4.2

4.0

*4.0

5.8

475

4.2

4.2

4.2

4.2

4.5

4.5

4.5

4.5

4.5

4.5

4.8

4.5

4.5

4.5

4.2

4.8

5.0

132.9

4.43

264

Calendar year 1950: Max 6,100 Mln 4.8 Mean 496 Ac-ft 359,300

Water year 1950-51: Max 6,100 Mln 3.8 Mean 499 Ac-ft 360,900

Peak discharge (base, 1.700 cfs). Oct. 26 (10p.m.) 2.490 cfs (10.16 ft): Oct. 30 (5 a.m.) 2,690

cfs (10.50 ft;; Nov. 18 (1 a.m.) 4,590 cfs (13.06 ft); Nov. 20 (7 p.m.) 8,840 cfs (17.93 ft); Dec. 3

(7p.m.) 6,170 cfs (14.97 ft); Dec. 8 (llp.m.) 5,000 cfs (13.58); Dec. 11 (1p.m.) 2,040 cfs (9.40

ft); Dec. 14 (10 a.m.) 4,370 cfs (12,79 ft); Jan. 18 (4 a.m.) 4,140 cfs (12.50 ft); Jan. 22 (3 a.m.)

4,730 cfs (13,24 ft); Feb. 5 (3 a.m.) 4,160 cfs (12.53 ft); Feb' 11 (5 p.m.) 4,010 cfs (12.34 ft).

* Discharge measurement made on this day.

g Computed from once-daily staff-gage reading.

Note. No gage-height record July 17 to Aug. 20; discharge Interpolated on basis of 3 staff-gage 

readings.
388 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

 '/fa 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 1951.

Gage.--Water-stage recorder. Datum of gage is 182.02 ft above mean sea level, datum of

 T929. Prior to September 1934, water-stage recorder at site 5.2 miles downstream at 

datum 139.53 ft above mean sea level (1929 adjustment). January 1902 to December 1912, 

staff gage at several sites 5.2 miles downstream at various daturns. Since Dec. 11, 1943, 

auxiliary water-stage recorder in well 75 ft upstream from left bank, at same datum.

Average discharge.--49 years, 5,753 cfs.

Extremes. Maximum discharge during year, 92,100 cfs Nov. 21 (gage height, 54.80 ft);

 minimum, 798 cfs Oct. 11 (gage height, 4.71 ft).

1902-34 at Oroville: Maximum discharge observed, 230,000 cfs Mar. 19, 1907 (gage 

height, 28.2 ft, reading on United States Weather Bureau staff gage at bridge, equivalent to 39-.S ft at staff gage at cable 1,000 ft upstream; probably had been higher during night); minimum, 300 cfs (estimated) Nov. 9, 1931 (gags height, -1.7 ft).

1934-51 near Oroville: Maximum discharge, 185,000 cfs Dec. 11, 1937 (gage height, 

73.6 ft, from foodmarks), from rating curve extended above 62,000 cfs on basis of 

velocity-area studies and verified by slope-area computation; minimum, 422 cfs Jan. 1, 

1950 (gage height, 3.31 ft).

Remarks.--Records excellent except those for period of no gage-height record which are

 Fair. Flow partly regulated by power plants and Lake Almanor (see p.377 ), Bucks (see

p. 383 ), Butt Valley, and smaller reservoirs. 

Revisions (water years). W 843: Maximum for 1907, 1909, 1914, 1915, 1917, 1927, and 1928;

W bui:iyiiJ-28 (puDlished in summary only).

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

13

1,380

1,740

2,820

4,060

5,370

7,620

9,300

11,200

13,200

16,500

22,900

30,600

40,700

54,700

72,000

Discharge, In cubic feet per second, water year October 1950 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

50

31

Total

Mean

Ac-ft

Oct.

1,860 

2,150

2,270

1,930

1,970

2,400

1,920

1,720

2,080

2,010

1,670 

2,030

2,000

1,950

1,700

2,000

1,970

1,870

2,010

1,970

1,920 

1,700

1,890

2,230

2,060

4,880

6,950

7,320

7,780

10.500

6,420

94,910

3,062

188,300

Nov.

4,290 

3,910

5,620

5,090

2.060

*2,120

2,540

2,550

2,290

2,550

2,640 

2,750

5,050

2,950

5,300

8,080

13,400

30,000

32,500

51,600

.67 . 100 

30, 500

19,500

15,700

10,700

9,520

7,350

7,470

6,740

6,880

358,330

li;940

710,700

Dec.

6,930 

6.550

23,500

59.400

24, 100

21,200

26,400

32,900

35,500

22,400

20,700 

18,700

15, 600

*26,000

28,000

23, 600

19,300

17,800

15, 600

14,200

13,000 

11,700

10, 500

9,570

8,840

9,190

7,820

7,580

7,500

7,380

6,840

536,100

17,290

L,063POO

Jan.

6,600 

6,940

6,780

5,540

6,040

5,950

5,130

5,590

5,670

6,840

8,740 

7,340

6,100

4.450

6,500

6,760

' 10, 400

20, 800

14,000

10,600

13,500 

,51,500

22,866

20, 800

18,700

16,100

13, 600

12, 600

11,900

10,500

9,240

337,610

10,890

669,600

Feb.

8,670 

8,380

8,640

16,600

25.500

19,200

17,400

18,200

17,600

17,000

22,000 

25,200

20, 200

18, 200

16,200

14, 100

13,400

12,500

11,900

10,500

10, 100 

9,520

8,990

8,290

8,130

8,480

8,020

7.680

_

-

388,600

13, 880

770,800

Mar.

7,520 

7,180

7.100

7,280

8,270

7,980

9,550

8,620

9.640

8,920

7,480 

7,510

7,720

8,130

8,470

8,550

8,560

8,260

8,260

8,440

8,870 

9,070

8,870

8,600

8,150

8,900

8,560

8,440

8,380

8,540

8,100

257,740

8,314

511,200

Apr.

7,780 

7,660

7,740

7,980

*8,540

8,400

8,420

7,680

8,260

9,520

10.100 

9,770

9,660

9,440

8,920

9,560

9,500

9,190

8,690

8,420

8,200 

6,760

6,640

7,000

6,940

*6,710

6.150

8,050

7,520

7,520

-

245,920

8,197

487,800

May

7,050 

6,860

*7,540

9,260

8,520

8,560

8,260

8,100

8,420

8,760

9.860 

8,850

8,320

7,460

7,660

7,800

8,040

8,000

7,800

6,820

6,680 

7,040

6,820

6,500

6,420

6,350

6,000

5,800

5,790

4,740

4.480

228,540

7,566

452,900

June

4.890 

4,200

4,320

4,060

5,660

3,370

3,170

3,450

2,950

2,990

2,860 

2,580

2,570

2,580

2,460

2,420

2,590

2,780

5,070

3,000

2,940 

a2,800

a2, 800

a2.500

a2,600

a2,750

a2,750

a2,700

a2,680

a2,700

-

90,550

3,018

179,600

July

a2,550 

a2,500

a2,400

a2 , 400

a2,400

a2,450

a2,450

a2,450

*a2,400

2,250

2,260 

2,240

2,220

2,210

2,210

2,220

2,170

2,150

2,150

2,170

2,170 

2,140

2,150

2.080

2,080

2,120

2,100

2,150

2,150

2,090

2,080

69,500

2,255

157,500

Aug.

2,040 

2,040

2,040

2,030

2,040

2,030

2,040

2,050

2.080

2,060

2,050 

2,040

2,040

1,960

1,940

1,940

*1,920

1,920

1,910

1,910

1,900 

1,890

1,870

1,850

1,800

1,780

1,740

1.720

1,730

*1,980

1,950

60,270

1,944

119,500

Sept.

1,710 

1,700

1,690

1,780

2,120

2,050

2,020

1,860

1,700

1,730

1,790 

1,870

1,990

1,890

1,870

1,700

1,900

1,700

1,920

2,070

1,960 

1,740

1,520

1,980

2,210

2.280

2,150

2,130

1,970

1.510

-

56,510

1,884

112,100

Calendar year 1950 : Max 67,000 Mln 906 Mean 7,220 Ac-ft 5,227,000

Water year 1950-51 : Max 67,000 Mln 1,510 Mean 7,464 Ac-ft 5,403,000

Peak dlscharae (base. 17.000 cfs}. Nov. 19

cfs (54.80 ft); Dec. 4 (1 a.m.) 51,800 cfs 4 

11 (1 p.m ) 23,400 cfs (50.36 ft); Dec. 14 1 

(52.30 ft): Jan. 22 (9:30 a.m.) 55,800 cfs 5 

11 (9 p.m.) 29,300 cfs (54.22 ft).

(2 a.m.) 46,200 

4.14 ft); Dec. 8 

2m.) 33,800 cfs 

7.75 ft); Feb. 5

cfs (42.10 ft); Nov. 21 (5 a.m. 

11 p.m.) 46,100 cfs (42.08 ft) 

36.75 ft); Jan. 18 (7 a.m.) 26 

10 a.m.) 28,800 cfs (33.95 ft)

92,100 

; Dec. 

,200 cfs 

; Feb.

 ±/j.Biiiiai-ge measurement made on this day. 

foa No gage-height record; discharge estimated on a basis of Big Bend powerhouse records and records
SACRAMENTO RIVER BASIN 389

South Honcut Creek near Bangor, Calif.

Location. Lat 39°22'05", long. 121°22'15", In SEij sec. 35, T. 18 N., R. 5 E. Mount Dlablo 

meridian, 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 1951.

Gage.--Water-stage recorder. Altitude of gage is 620 ft (from topographic map).

Extremes.--Maximum discharge during year, 3,170 cfs Nov. 20 (gage height, 8.68 ft), from 

rating curve extended above 2,200 cfs by logarithmic plotting; no flow for several 

months.

Remarks.--Records good. Some small diversions upstream for irrigation.

Rating tables, water year 1950-51 (gage height. In feet, 

and discharge, in cubic feet per second)

Oct. 4 to Nov Nov. 19 to Sept. 30

1.5

1.6

1.7 

1.9 

2.1 

2.3

1.8 

4.4

2.5 

2.9 

3.2 

3.6 

4.0 

4.5

8.9

22.5

41

79

132

226

5.0 

6.0 

7.0 

8.0

356

730

1,290

2,320

2.5 

2.7 

2.9

8.9

15.6

26.3

3.3

4.0 

4.5

58

135

226

Note. Same as preceding 

table below 2.5 and above 

4.5 ft.

Discharge, ! . cubic feet per second, water year October 1950 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.

aO.l

1T7T

a.l **a.l

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.8

12

11

4.4

4.6

~5.1 18

58.4

1.88

116

Nov.

3.2

2.5

1.8

1.4

1.2

*1.2

1.0

.9

.8

_1JL

.6

.6

.9

2.9

3.6

*39

*67

905

*266

1.800

*731

112

62

40

26

20

17

14

13

15

-

4,150.2

138

8,230

Dec.

14

T6

1.250

276

107

254

*400

634

286

135

294

147

106

510

324

155

110

88

74

61

54

47

41

36

32

29

26

26

24

28

25

5,589

180

11,O90

Jan.

21

20

50

53

36

28

26

24

24

172

355

150

95

75

248

160

316

772

238

146

844

872

288

177

138

113

98

87

83

75

64

5,848

189

11,600

Feb.

58

52

52

445

*482

160

113

94

80

80

179

132

95

81

71

62

67

70

58

59

65

62

56

51

45

48

48

44

_

_

~

2,909

104

5,770

Mar.

41

37

35

86

170

236

T54

116

135

96

82

74

62

56

52

48

46

42

40

*40

4O

29

26

25

24

23

22

21

20

19

i§_

1,945

82.7

3,860

Apr.

17

16

15

15

15

12

12

12

11

11

9.7

9.7

9.5

9.2

9.2

9.2

8.4

8.1

7.4

7.1

6.9

6.4

6.0

67C

6.4

6.9

6.6

24

22

14

328.7

11.0

652

May

11

*9.7

19

102 ~2J

17

15

12

11

9.5

8.4

9.2

8.6

8.4

7.4

6.6

6.2

6.0

5.5

5.3

4.9

4.4

4.1

3.6

3.9

3.5

2.8

2.4

2.2

2.1

2.0

336.7

10.9

668

June

1.8

TT6

1.6

1.6

1.5

1.6

1.7

1.7

1.7

1.6

1.3

1.0

.8

.8

.7

.6

.6

.6

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

_^3

28.0

0.93

56

July

~

0.3

.3

.3

.2

.2

.2

.1

.1

.1

.1

**.!

.1

.1

.1

.1

.1

.1

0

TS

o

0

0

0

0

0

0

0

0

0

o

2.9

0.09

5.8

Aug.

0

0

0

Sept.

(*)

-

O

0

o

Calendar year 195O: Max - Mln - Mean - Ac-ft

Water later year year 1950-51 1950-51: : Max Max 1,800 1,800 Mln Mln 0 0 Mean Mean 58.1 58.1 Ac-ft Ac-ft 42,050 42,050

Peak discharge (base, BOO cfs). Nov. 20 (4:3O p.m.) 3,170 cfs (8.68 ft); Dec. 3 (4 p.m.) 2.45O cfs 

8.11 ftjj Dec. 7 (1 a.m.) 915 cfs (6.39 ft); Dec. 14 (7 a.m.) 926 cfs (6.41 ft); Jan. 18 (5:30 a.m.) 

,440 cfs (8.10 ft); Jan. 21 (9 p.m.) 2,310 cfs (7.99 ft); Feb. 4 (6 p.m.) 1,180 cfs (6.84 ft).

* Discharge Discharge measurement measurement made on this dav.y 

 * Field estimate made on this day. 

a No gage-height record; discharge estimated.

256498 O - 53 - 26
390 SACRAMENTO RIVER BASIN

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 

it below tunnel outlet and near upper end of Bowman Lake.

Records available.--May 1928 to September 1930, October 1931 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 5,600 ft (from 

topographic map).

Average discharge.--22 years (1928-30, 1931-51), 70.3 cfs.

Extremes. Maximum daily discharge during year, 147 cfs Nov. 20; minimum daily, 2.0 cfs

1928-30; 1931-51: 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. 

1ST., R. 12 E., and discharges into Bowman Lake. During low and medium stages, 

practically entire flow of Middle Yuba River is diverted.

Cooperation.--Water-stage recorder graph and one discharge measurement furnished by Nevada 

irrigation District.

Rating table, water year 1950-51 (gage height, In feet, and discharge, 

In cubic feet per second)

0.2 

.3

1.4 

2.9 

5.0

7.6

11

0.9 

1.4

1.9

27

72

154

Discharge, In cubic feet per second, water year October 1950 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.

2.0 270

2.0

2.1

2.7

3.. 7

3.7

3.1

2.7

2.6

2.6

2.6

2.9

2.9

2.9

2.7

2.6

2.4

2.6

2.6

2.6

2.6

2.7

5.4

14

41

68

55

45

71 -55

425.7

13.7

844

Nov.

52

48

*58

66

57

45

34

29

26

23

21

19

T9

20

19

24

51

121

118

147

130

104

98

95

92

91

90

90

88

87

-

1,962

65.4

3,890

Dec.

87

85

118

T§6

98

103

109

114

103

95

95

94

91

103

97

94

91

91

90

as

87

85

84

84

83

82

80

80

80

80

78

2,855

92.1

5,660

Jan.

77

77

77

77

72

69

67

66

65

63

61

61

59

58

59

58

57

53

47

5T

59

85

34

83

80

80

80

79

79

78

80

2,141

69.1

4,250

Feb.

79

78

77

82

84

82

83

83

82

82

83

82

80

80

80

80

80

80

80

79

79

78

77

77

78

78

77

li

_

-

2,232

79.7

4,430

Mar.

72

70

64

67

65

63

61

64

64

59

59

59

61

65

70

76

76

76

76

77

7S

78

78

78

I9-

79

79

79

79

79

79

2,209

71.3

4,380

Apr.

78

75

78

78

79

79

80

80

82

84

85

85

85

87

W

85

S7

85

85

84

84

84

84

84

84

84

84

85

85

84

-

2,493

83.1

4,94O

May

84

31

84

85

85

85

87

87

88

90

91

91

91

92

92

92

92

100

132

159

139

139

139

136

136

139

136

136

134

130

128

3,363

108

6,670

June

128 T2~5

128

127

127

127

127

125

121

*118

116

114

88

76

76

76

76

74

74

72

69

65

'60

54

49

47

43

39

34

51

-

2,589

86.3

5,140

July

28

tt

24

22

20

20

18

16

16

*14

12

12

12

12

11

11

11

10

9.9

9.6

9.6

9.2

8.9

8.6

8.2

8.0

8.0

7.6

7.4

7.0

6.4

403.4

15.0

800

Aug.

6.0

6.0

5.7

5.4

4.7

4.1

5.9

5.7

5.3

5.1

5.5

5.1

5.5

5.1

2.9

3.1

3.3

4.1

5.0

5.2

5.7

6.2

6.2

6.4

FT?

6.4

6.2

6.0

6.0

6.0

6.0

149.8

4.83

297

Sept.

6.0

ETC

5.7

5.7

5.7

5.7

5.4

4.7

3.1

375

3.5

3.9

4.1

4.3

4.3

4.5

4.7

4.7

4.5

4.5

4.3

4.5

4.3

4.1

3.9

3.9

3.9

3.7

3.7

3.7

-

154.1

4.47

266

Calendar year 195O: Max 356 Mln O.8 Mean 96. 0 Ac-ft 69,470

Water year 195O-51: Max 147 Mln 2.0 Mean 57.4 Ac-ft 41,570

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 391

Middle Yuba River at Milton, Calif.

Location. Lat 39°31'22", long. 120°35'0l" , in SWi sec. 12, T. 19 N., R. 12 E., on right

 b'ank 'at diversion dam of Nevada Irrigation District, at old town site of Milton, 4 miles 

southeast of Sierra City, and 8 miles upstream from South Fork of Middle Yuba River.

Drainage area.--41 sq mi, approximately.

Records available.--December 1925 to September 1934, October 1935 to September 1951.

 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 

I from topographic map).

December 1925 to September 1928, at site 0.2 mile downstream, at different datum.

Average discharge.--21 years (1926-30, 1931-34, 1935-40, 1941-42, 1943-51), 104 cfs (based

 on combined flow of Middle Yuba River at this station and Milton-Bowman tunnel at outlet).

Extremes.--Maximum discharge during year, 6,300 cfs Nov. 20 (gage height, 4.00 ft), from

 rating curve extended above 1,500 cfs by weir formula; no flow over dam for long

1925-34, 1935-51: Maximum discharge, 6,800 cfs Dec. 11, 1937 (gage height, 4.18 

ft), from rating curve extended above 1,500 cfs by weir formula; practically all low 

flow diverted after May 23, 1928.

Remarks.--Records fair except those for periods of no gage-height record, which are poor.

 lOTfon-Bowman tunnel (see p. 390 ) diverts above station to Bowman Lake (see p. 397).

Cooperation. Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.0 

.1 

.2 

.3

0

9

42

88

143

0.5 

.6 

.7 

.8

1.0

207

277

354

440

640

1.4 

1.8 

2.2 

2.7 

3.3

1,130

1,720

2,380

3,320

4,610

Discharge, in cubic feet per second, water year October 1950 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.

C

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

16

0

0

42

.2

58.7

1.89

116

Nov.

Q

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0

1.6

1,910

1,480

4,450

2,360

543

300

203

146

110

88

73

52

54

-

11,770.6

392

23,350

Dec.

42

33

2.060 

900

372

709

1,020

1,490

617

342

340

262

196

726

450

277

207

156

143

121

99

78

63

54

42

34

22

16

11

9.0

2_.4_

L0,893.4

351

21,610

Jan.

0

0

0

Feb.

aO.

aO

aO

a50

54

50

42

34

34

22

22

..

1

\ alO

I

J

1

f aO

J

_

_

-

808

28.9

1,600

Mar.

, aO

a40

640

20.6

1,270

Apr.

a70

-

2,100

70

4,170

May

. a300

354

323

323

300

292

263

285

292

285

235

181

126

88

8,747

282

17,350

June

*54

38

26

19

13

9.0

6.0

0

0

0

0

0

0

32

42

38

26

16

7.0

3.4

0

0

0

0

0

0

0

0

0

0

 

.4

11.0

653

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950= Max 4,4 

Water year 1950-51: Max 4,4

Min o Mean 102 

Mean 95.8

Ac-ft 74,080 

Ac-ft 70,110

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on baals of recorded range in stage and records for 

station above Oregon Creek and Milton-Bowman tunnel at outlet.
392 SACRAMENTO RIVER BASIN

Middle Yuba River above Oregon Creek, Calif.

Location (revised) . Lat 39°23'35", long. 121°04'50", in SEij sec. 28, T. 18 N. , R. 8 E. , 

 on left DanK 1,000 ft upstream from Oregon Creek,and 2 miles northeast of North San 

Juan.

Drainage area.--170 sq mi.

Records available. March 1941 to September 1951. Prior to October 1949, published as 

"widcue ii'oric iuba River."

Gage.--Water-stage recorder. Altitude of gage is 1,440 ft (from topographic map). 

Average discharge.--10 years (1941-51), 345 cfs.

Extremes.--Maximum discharge during year, 19,500 cfs Nov. 21 (gage height, 15.25 ft), from 

rating curve extended above 8,200 cfs on basis of slope-area determination of peak flow; 

minimum, 30 cfs Oct. 19.

1941-51: Maximum discharge, that of Nov. 21, 1950; minimum, 10 cfs Jan. 3, 1950.

Remarks. Records good. Milton-Bowman tunnel (see p. 390), above station, has diverted 

to aowman Lake since 1928; also small diversions above station.

Rating tables, water year 1950-51 (gage height, in feet, and discharge, in 

cubic feet per second)

Oct. 1 to Nov. 20 Nov. 21 to Sept. 30

174

300

464

890

6.0

7.0

8.0

9.0

10.0

12.3

1,530

2,490

3,690

5,200

7,000

12,000

4.0 

4.5 

5.0

55

116

232

388

554

770

6.0

7.0

8.0

9.0

11.0

13.0

1,420

2,360

3,500

4,810

8,440

13,200

Discharge, in cubic feet per second, water year October 1950 to September 1951

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.

31

52

32

31

34

42

36

34

34

34

*33

32

31

31

31

31

34

34

34

34

34

34

35

45

63

202

333

152

113

T55" 435

2,296

74.1

4,550

Nov.

109

90

83

77

70

64

61

58

55

53

52 "SS

59

78

77

290

515

6,820

5,920

11,800

*10,600

2,810

1,590

1,060

815

653

547

494

443

417

45,812

1,527

90,870

Dec.

404

364

5,'SSC

5,000

*2,700

2,570

4,390

6,010

3,620

2,150

1,750

1,540

1,170

2,630

3,180

2,180

1,600

1,220

1,020

880

795

706

636

592

550

515

467

431

406

403

376

55,855

1,802

110,800

Jan.

350

336

394

400

347

322

309

296

294

300

400

336

301

286

341

344

554

2,140

1,060

697

1,150

5,610

2,250

1,600

1,260

1,080

966

858

765

670

608

24,624

794

48,840

Feb.

554

515

5O8

1,080

2,540

1,580

*1,320

1,240

1,080

1,060

1,380

1,510

1,080

942

831

745

697

645

573

565

545

504

467

444

454

424

405

588

_

-

25,652

845

46,910

Mar.

582

564

341

555

447

532

697

577

636

532

474

474

525

588

612

632

616

558

547

569

624

608

581

575

600

592

581

562

588

578

515

16,895

545

55,510

Apr.

487

481

457

498

569

628

652

649

750

897

948

*942

960

1,060

1,020

966

960

875

800

755

755

711

711

674

624

581

540

825

652

552

21,907

730

43,450

May

494

464

609

960

765

780

720

715

810

919

1,400

1,030

848

711

685

750

856

908

892

842

795

760

720

679

666

702

674

624

552

470

588

23,126

746

45,870

June

322

251

254

239

228

214

200

188

174

164

160

155

151

*144

168

166

159

146

151

121

116

110

105

105

100

97

95

92

89

86

-

4,758

159

9,440

July

84

ST

78

76

76

74

72

69

68

66

65

65

62

61

59

58

55

54

55

53

51

51

50

49

49

48

47

45

45

44

45

1,849

59.6

5,670

Aug.

4542"

41

41

41

41

40

40

40

39

40

41

40

*39

58

58

58

38

57

57

57

57

58

40

40

40

59

59

41

42

42

1,229

59.6

2,440

Sept.

41

IT

59

40

39

38

58

38

37

36

36

56

55

55

55

55

56

56

55

55

55

55

55

55

55

55

55

35

36

37

-

1,094

36.5

2,170

Calendar year 1950: Max 11,800 Min 15 Mean 599 Ac-ft 433,300

Water Ler year year 1950-51: issu-oi: Max Max 11,800 ii,8OO Min Min 31 31 Mean Mean 611 611 Ac-ft Ac-It 442,500 442,500

Peak discharge (base, 1,800 cfs).--Nov. 18 (9 p.m.) 12,600 cfs (12.55 ft); Nov. 21 (1 a.m.) 19,500 

"s (.15.25 ft)T Dec. 3 18 p.m.) 12.400 cfs (12.70 ft); Dec. 8 (10:30 a.m.) 7,860 cfs (10.73 ft); Dec. 

I (12:30 p.m.) 5,610 cfs (8.09 ft); Jan. 18 (7 a.m.) 5,210 cfs (7.76 ft); Jan. 22 (8 a.m.) 4,150 

's (8.HO ftl: Feb. .S IK a.m.^ 5>.fnn pfs (7 A! ft.\

of

14 ^-LC-.OW ^r.m./ o, U.L*-' ^±o \o . va il/yi tJcul. -LO ^ / cl .III

cfs (8.50 ft); Feb. 5 (6 a.m.) 2,810 cfs (7.41 ft). 

* Discharge measurement made on this day
SACRAMENTO RIVER BASIN 393

Oregon Creek near North San Juan, Calif.

Location.--Lat 39°24', long. 121°05 I , in SW^ sec. 22, T. 18 N., R. 8 E., on right bank 

1 mile upstream from mouth and 3 miles northeast of North San Juan.

Drainage area. 35.1 sq mi.

Records available.--October 1910 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,500 ft (from topographic map), frior 

£o October 1933, staff gage at site 0.7 mile downstream at different datum.

Average discharge.--40 years (1911-51), 74.6 cfs.

Extremes. Maximum discharge during year, 3,240 cfs Nov. 21 (gage height, 9.80 ft); minimum, 

a.7 cfs Sept. 15, 25 (gage height, 1.57 ft).

1910-51: Maximum discharge observed, about 4,000 cfs Mar. 25, 1928 (gage height, 9.5 

ft, site and datum then in use), from rating curve extended above 600 cfs; minimum, 0.7 

cfs on several days in July, August 1931, September 1934.

Remarks.--Records good except those for period of no gage-height record, which are fair. 

Small diversions above station for irrigation and mining.

Revisions (water years).--W 861: 1927(M), 1928.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

3.2 

5.5

16

3.5 

4.0 

4.6 

5.2 

6.0

108

169

266

412

705

7.0 1,220

8.0 1,850

9.0 2,590

Discharge,

Day

1 

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

5.2 

3.2

3.2

3.2

3.6

5.5

4.3

3.8

3.6

3.6

*3.4

3.4

3.2

3.2

3.2

3.4

4.0

4.0

3.8

3.8

3.8

3.8 

4.0

5.5

11

32

53

27

21

69

28

330.7

10.7

656

Nov.

17 

13

11

9.8

8.5

8.2

7.5

7.2

6.6

6.5

6.3

6.3

7.2

13

17

79

175

1,150

742

2.060

1,820

568 

291

198

147

118

101

87

76

72

-

7,828.9

261

15,530

Dec.

68 

64

1,340

1,100

*496

531

961

1.52CT

1,090

577

447

350

277

689

990

590

390

293

236

199

168

140 

127

115

105

96

88

82

77

76

71

13,353

431

26,490

Jan.

65 

63

84

88

75

68

63

60

58

73

102

82

71

65

84

88

205

1,040

415

262

578

1.550 

806

556

430

366

322

282

248

218

192

8,659

279

17,170

Feb.

170 

153

154

387

1.040

593

*445

379

332

318

418

424

335

278

241

212

196

181

158

153

146

132 

123

114

112

109

104

97.

.

-

7,504

268

14,880

Mar.

96 

90

85

99

126

147

196

169

205

164

141

136

150

172

184

196

194

180

174

178

187

186 

178

170

170

168

160

150

150

153

140

4,894

158

9,710

Apr.

127 

TSo

116

114

117

118

120

118

116

117

119

*115

108

104

99

94

89

84

77

72

67

61 

58

56

55

55

51

86

83

68

-

2,784

92.8

5,520

May

65 

61

73

188

143

132

123

116

113

112

112

105

98

88

80

74

68

64

58

53

50

47 

44

43

42

40

38

36

34

32

31

2,363

76.2

4,690

June

30 

29

28

27

27

26

25

24

23

22

21

21

21

*20

19

19

19

18

17

16

16

16

15

15

14

13

13

13

13

12

-

592

19.7

1,170

July

12 12"

12

12

12

11

11

11

11

10

10

10

10

9.5

9.5

9.5

9

9

9

8.5

8.5

8.5 

8

8

8

7.5

7.5

7.5

7

7

7

292.5

9.44

580

Aug.

e6

6

6

5.5

5.5

5

5

5

4.5

4.5

4.5

*4.3

4.3

4.0

4.0

3.8

3.8

5.6

3.8

3.8

3.8

4.0

3.8

4.0

4.0

4.0

4.3

4.8

4.8

143.4

4.63

284

Sept.

1^8 

4.8

4.8

4.3

4.3

4.0

3.6

3.6

3.8

3.8

3.6

3.6

3.4

3.4

5.2

3.4

3.8

3.8

3.8

3.8

3.6

3.8

3.8

3.6

3.2

3.2

3.4

3.2

3.4

3.8

-

112.6

3.75

223

Calendar year 1950: Max 2,060 Mln 2 Mean 126 Ao-ft 91,560

Water Hater year year j.3ow-oi: 1950-51 : Max max 2,060 t,uou Mln run 3.2 o.£ Mean Mean 134 -LJ* Ac-ft Ac-it 96,900 3o,jvw

Peak discharge (base. 410 cfs) Nov. 18 (7 p.m.) 1.640 cfs (7.70 ft); Nov. 21 (1 a.m.) 5.240 efs 

(9.80 ft);Pec. 3 (5 p.m.) 2,510 cfs (8.90 ft); Dec. 8 (7 p.m.) 1,990 cfs (8.20 ft); Dec. 15 (6 a.m.) 

1,200 cfs (6.96 ft); Jan. 18 (7 a.m.) 1,740 cfs (7.85 ft); Jan. 22 (4 a.m.) 2,040 cfs (8.27 ft); Feb. 

5 (7 a.m.) .. 1,460 , cfs (7.40 . ft); Feb. . 11 (7 p.m.) 608 ofs (5.77 ft).

Discharge measurement made on this day. 

Mote. No gage-height record July 5 to Aug. 13; discharge Interpolated.
SACRAMENTO RIVER BASIN

North Yuba River below Goodyears Bar, Calif.

Location. Lat 39°32', long. 120°56', in Sw£ sec. 11, T. 19 N., R. 9 E., on right bank 3.5 

mnes downstream from Goodyears Creek, 4 miles southwest of Goodyears Bar, and 6 miles 

southwest of Downieville.

Drainage area.--244 sq mi.

Records available. December 1930 to November 1937, December 1938 to September 1951. 

rnor to uctoDer 1949, published as "North Pork Yuba River."

Gage.--Water-stage recorder. Altitude of gage is 2,450 ft (from topographic map). 

Average discharge.--18 years (1931-37, 1939-51), 720 cfs.

Extremes.--Maximum discharge during year, 26,400 cfs Nov. 20 (gage height, 19.15 ft), from 

rating curve extended above 6,000 cfs on basis of slope-area determination of peak flow; 

minimum, 129 cfs Sept. 25, 26.

1930-51: Maximum discharge, that of Nov. 20, 1950; minimum, 69 cfs Aug. 26, 1931.

Remarks. Records excellent except those for periods of no gage-height record, which are 

rair. Several small diversions above station for irrigation and mining.

Revisions (water years). W 1041: 1944.

Rating table, water year 1950-51 {gage height, in feet, 

and discharge, in cubic feet per second)

1.7 

2.1 

2.5 

3.0 

3.5

122

166

223

308

420

4.0 

5.0 

6.0 

7.0 

9.0

585

1,010

1,600

2,380

4,550

11.0 7,560

13.0 10,900

16.0 17,900

Discharge, in cubic feet per second, water year October 1950 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

25

24

25

26

27

28

29

50 

51

Total

Mean

Ac-ft

Oct.

142

142

140

140

*161

179

152

146

145

141

159

156

155

154

154

155

159

159

158

155

154

154

159

176

521

641

915

485

570

1,210 

495

7,868

254

15,610

Nov.

566

561

420

570

522

283

258

247

234

218

216

211 '553"

269

257

6S4

1,700

9,870

8,200

 16,200

15,500

*4,840

2,860

2,110

1,650

1,570

1,190

1,060

960

951

71,400

2,580

141,600

Dec.

903

822

7,030"

6,850

3,400

5,600

5,890

9.500

6,480

5,820

5,200

2,800

2,500

4,660

4,600

5,350

2,730

2,290

2,010

1,750

1,550

1,42C

1,300

1,190

1,060

1,050

1,000

950

910

890 

850

89,915

2,900

178,500

Jan.

770

750

820

850

790

740

690

640

600 750"

900

750

680

660

770

790

1,160

2,520

1,460

1,220

2,570

5,700

2,470

2,020

1,800

1,610

1,500

1,550

1,200

1,100 

1,000

38,380

1,238

76,130

Feb.

960

920

900

1,800

5,100

2,600

 2,500

2,070

1,880

1,870

2,210

2,080

1,860

1,690

1,540

1,430

1,370

1,270

1,180

1,150

1,130

1,060

1,020

970

946

920

900

870

-

41,996

1,500

85,500

Mar.

840

810

780 SSO"

980

1,100

1,200

1,150

1,200

1,100

 1,100

55,120

1,068

65,690

Apr.

1,000

980

1,OT30"

1,050

1,200

1,500

1,400

1,500

1,600

1,900

2,000

 1,950

2,010

2,110

2,100

2,020

1,960

1,820

1,720

1,670

1,640

1,620

1,600

1,520

1,450

1,550

1,500

1,590

1,510

1,180

46,810

1,560

92,850

May

1,120

1,070

1,190

1,490

1,440

1,520

1,460

1,500

1,670

1,960

2.670

1,940

1,680

1,500

1,450

1,600

1,800

*1,900

1,910

1,880

1,840

1,810

1,800

1,750

1,750

1,780

1,780

1,640

1,480

1,510 

.1,130

50,800

1,639

100,800

June

 

1,040 570"

928

902

874

856

816

789

756

732

720

704

692

684

672

668

640

602

571

557

526

502

479

453

455

423

599

582

566

555

19,495

650

38,660

July

546 3"3B"

328

322

518

512

506

294

286

279

274

270

265

262

255

255

249

245

259

233

229

229

225

222

220

217

214

208

205

204 '2o"3~

8,050

260

15,970

Aug.

194

19T

189

187

185

185

185

180

179

178

175

172

172

 170

166

162

161

160

159

165

169

176

164

161

156.

154

151

150

TBT

159 

158

5,265

170

10,440

Sept.

154

TBT

152

151

148

147

145

145

141

140

156

155

155

155

133

132

136

134

132

132

152

150

130

130

130

129 130"

130

131

134

4,121

157

8,170

Calendar year 1950: Max 16,200 Mln 100 Mean 1,172 Ac-ft 848,100

Water year 1950-51: Max 16,200 Min 129 Mean 1,145 Ac-ft 827,500

Peak discharge (base, 5,200 cfs). Nov. 18 (8 p.m.) 14,400 cfs (14.60 ft); Nov. 20 (10 p.m.) 26,400

cfs (19.15 ft); Dec. 3 (6 p.m.) 13,900 cfs (14.58 ft); Dec. 8 (12 m.) 10,800 cfs (12.95 ft); Dec. 14

(9 a.m.) 6,580 cfs (10.55 ft); Jan. 18 (5 a.m.) 5,500 cfs (8.12 ft); Jan. 22 (l a.m.) 4,600 cfs (9.04

ft); May 11 (5 a.m.) 5,440 cfs (8.06 ft).

Discharge measurement made on this day. 

Note. Ho gage-height record Dec. 26 to Jan. 17, Jan. 27 to Feb. 7, Feb. 26 to Apr. 12, May 15-18; 

discharge estimated on basis of records for stations on nearby streams.
SACRAMENTO RIVER BASIN 395

North Yuba River below Billiards Bar Dam, Calif. 

(Formerly published as North Yuba River at Colgate diversion dam, Calif.)

Location. Lat 39°24'1S", long. 121°08'30", in SW£ sec. 24, T. 18 N., R. 7 E.,on right 

DanK, 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. 481 sq mi.

Records available.--December 1940 to September 1951. Prior to October 1949, published as 

wortn tfOFK *uea River at Colgate diversion dam; October 1949 to September 1'950 published 

as North Yuba River at Colgate diversion dam.

Gage. Water-stage recorder. Altitude of gage is 1,390 ft (from topographic map). Prior 

ITo Oct. 1, 1950, at site 1 mile downstream at different datum.

Average discharge.--10 years (1941-51), 1,454 cfs.

Extremes. Maximum discharge during year, 47,100 cfs Nov. 21 (gage height, 31.3 ft), from 

rating curve extended above 32,000 cfs on basis of computation of flow over dam at gage 

height 29.5 ft; no flow part of Sept. 30.

1940-51: Maximum discharge, that of Nov. 21, 1950; no flow Oct. 22, 23, 1949, and 

part of Sept. 30, 1951.

Remarks. Records good except those for Nov. 23 to Dec. 12, which are fair, and those for 

sept. 1-30, which are poor. Flow slightly regulated by Bullards Bar Reservoir. No 

large diversion above station.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 20 Nov. 21 to Sept. 30

3.5 60 6.0

4.0 114 7.0

4.5 197 8.0

5.0 322

690

1,230

1,980

4.9 

5.5 

6.5 

8.0

215

394

870

1,980

11.0 5,100

14.0 8,920

21.0 21,800

25.0 31,000

Note. Same as following 

table above 8.0 ft.

Discharge, In cubic feet per second, water year October 1950 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.

214

197

189

*195

*125

77

60 7^2"

62

*62

62

62

62

62

63

71

77

77

67

75

75

76

77

78

275

328

390

573

699

1,910

1,180

7,582

245

15,040

Nov.

690

585

565

565

565

561

561

557

553

555

549

535

545

545

545

549

1,040

18,300

17,600

*27,700

*29,900

 9,510

a5,800

a4,200

a3,200

a2,600

a2,200

a2,000

al , 800

al,600

136,473

4,549

270,700

Dec.

al,700

al,500

alS.OOO

al5,000

a7,800

a6 , 200

311,000

al6.500

al4,OOO

a8,200

a6,600

a5, 600

*4,520

7,680

9,580

7,030

5,530

4,600

5,980

3,380

3,080

2,760

2,500

2,290

2,120

1,960

1,840

1,720

1,640

1,600

1,540

176,250

5,685

549,600

Jan.

1,430

1,380

1,470

1,560

1,400

1,290

1,240

1,190

1,170

1,290

1,490

1,380

1,250

1,200

1,550

1,440

2,120

7,640

4,500

5,070

5,440

9,880

7,250

5,350

4,510

3,950

3,630

3,300

3,050

2,750

2,490

88,390

2,851

175,300

Feb.

2,500

2,150

2,090

5,640

7,000

5,490

4,650

*4,470

4,110

5,940

4,720

5,180

4,500

5,770

3,560

3,080

2,910

2,790

2,500

2,580

2,540

2,190

2,050

1,960

1,900

1,860

1,800

1,750

_

-

90,660

3,258

179,800

Mar.

1,660

1,600

1,500

1,610

1,890

2,010

2,450

2,250

2!270

2,000

1,910

1,960

2,200

2,540

2,450

2,480

2,290

2,240

2,280

2,470

2,490

2,580

2,540

2,420

2,450

2,410

2,550

2,410

2,590

2,200

68,190

2,200

155,500

Apr.

2,110

2,080

2,110

2,190

2,420

2,660

2,690

2,810

3,010

3,440

5,570

3,440

*3,470

5,650

5,700

3,450

3,540

3,130

2,900

2,730

2,650

2,570

2,530

2,440

2,300

2,190

2,040

2,500

2,410

2,010

-

82,520

2,751

163,700

May

1,910

1,820

1,890

2,750

2,750

2,680

2,680

2,580

2,780

5,070

5,980

5, 400

2,840

2,520

2,380

2,480

2,740

2,870

2,960

2,950

2,820

2,760

2,670

2,600

2,500

2,570

2,530

2,480

2,180

1,990

1,760

80,850

2,608

160,400

June

1.600

1)480

1,390

1,350

1,290

1,260

1,240

1,180

1,150

1,070

1,040

1,020

984

*978

954

956

918

888

858

810

782

760

735

710

690

665

646

632

614

507

-

29,097

970

57,710

July

529

565

5"2T>

552

507

472

451

451

451

442

422

406

454

430

426

402

390

587

598

579

594

547

350

347

357

361

350

526

311

352

311

12,812

413

25,410

Aug.

438

330

289

278

350

550

514

514

550

514

264

261

*525

555

317

314

304

270

246

238

517

517

514

517

508

258

259

275

517

501

226

9,366

302

18,580

Sept.

. a240

-

7,200

240

14,280

Calendar year 1950: Max 29,900 Mln 60 Mean 2,211 Ac-ft 1,601,000

Water year 1950-51: Max 29,900 Mln - Mean 2,163 Ac-ft 1,566,000

Peak discharge (base, 5,200 efs).--Nov. 18 (11:50 p.m.) 35,600 cfs (26.9 ft); Nov. 21 (l a.m.) 

47,1OO cfs (3lT3 ft); Dec. 3 (time unknown) 21,500 cfs (20.9 ft); Dec. 8 (time and discharge unknown); Dec. 14 (4 p.m.) 11,800 cfs (15.87 ft); Jan. 18 (10 a.m.) 9,760 cfs (14.56 ft); Jan. 22 

(1 p.m.) 11,400 cfs (15.59 ft); Feb. 5 (ll:30 a.m.) 7,900 cfs (13.27 ft); Feb. 11 (12 p.m.) 5,870 

cfs (11.64 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of powerhouse records at Bullards Bar Dam 

and records for station below Goodyears Bar.
SACRAMENTO RIVER BASIN

South Yuba River near Cisco, Calif.

Location. Lat 39°19', long. 120°33', in sec. 19, T. 17 N., R. 13 E., on right bank 0 5 

mile downstream from Rattlesnake Creek, 1 mile west of Cisco Grove, and 1.2 miles northwest of Cisco.

Drainage area. 50.2 sq mi.

Records available.--April 1942 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 5,500 ft (from topographic map). Prior 

to October 1945, at site 200 ft upstream at same datum. Prior to October 1949, published 

as South Fork Yuba.

Average discharge.--9 years (1942-51), 185 cfs.

Extremes.--Maximum discharge during year, 11,700 cfs Nov. 20 (gage height 15 82 ft) from 

rating curve extended above 4,600 cfs on basis of slope-area determination'of peak flowminimum, ll cfs July 5, 6.

1942-51: Maximum discharge, that of Nov. 20, 1950; minimum, 0.8 cfs Oct. 5-8, 1945.

Remarks.--Records good. Low flow regulated by Lake Van Norden.

Rating tables, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 2O Nov. 21 to Sept. 30

2.3 21 4.0 322 10.0 4,O50 2.0 10 3.1 120 

2.6 43 5.0 670 12.0 6,320 2.2 2O 3.5 195 

2.9 76 6.0 1,100 14.0 8,950 2.5 43 4.0 322 

3.2 122 7.0 1,630 2.8 76 

3.5 189 8.0 2,290 Note. Same as preceding table above 4.0 ft. 

Discharge, In cubic feet per second, water year October 1950 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.

32

32

31

31

33

32

31

30

*30

29

28 

28

28

28

27

27

27

30

31

30

29

28

29

34

53

175

155

74

73

~92 350

1,687

54.4

3,350

Nov.

92

151

248

170

117

85

71

69

62

40

31 

26

26

26

25

53

523

5,630

2,800

6,200

4,100

791

408

*289

242

199

175

159

148

162

-

25,118

837

49,820

Dec.

156

140

4,150

1,690

552

1,230

1,970

*3,130

1,030

493

538 

510

324

1,470

706

441

307

255

224

206

191

189

227

219

213

202

189

187

177

123

117

21,556

695

42,760

Jan.

112

112

116

114

108

105

105

102

100

104

100 

104

100

96

99

98

98

99

102

87.

94

453

4TO

265

206

179

159

150

134

128

117

4,356

141

8,640

Feb.

Ill

105

111

253

594

*243

304

295

243

236

236 

191

169

157

146

139

135

127

120

117

116

110

106

102

98

98

93

3 90

_

-

4,645

166

9,210

Mar.

90

86

110

86

87

83

86

83

83

86

79 

56

108

135

159

181

175

151

167

204

243

229

224

243

273

260

255

253

281

222

183

4,991

161

9,900

Apr.

181

204

224

246

365

424

451

485

602

706

632 

632

666

726

632

659

682

583

528

543

561

572

576

517

431

358

343

550

358

263

14,700

490

29,160

Calendar year 1950: Max 8,2OO Mln 4.7 Mean 343

May

234

227

3T2

*391

316

346

355

461

471

810

1.020 

535

381

325

431

605

678

778

778

742

730

659

613

590

643

670

655

564

482

368

284

16,464

531

32,660

June

251

236

227

229

222

210

191

179

*171

169

171 

161

161

157

148

141

123

105

90

94

79

65

51

44

39

35

31

27

24

21

-

3,852

128

7,640

July

18

16

14

13

12.

28

79

79

79

77

76 

75

72

71

70

69

66

66

65

63

62

61

58

56

55

54

52

50

49

47

45

1,697

54.7

3,37O

Aug.

42

41

39

38

35

31

27

25

24

23

21 

27

26

26

*26

25

25

25

25

25

25

25

25

25

26

26

25

25

26

26

25

855

27.6

1,700

Sept.

19

19

18

18

11

17

22

24

24

24

23 

23

23

25

20

18

18

18

18

18

18

18

18

18

18

17

17

17

17

17

-

581

19.4

1,150

Ac-ft 248,600

Water year 1950-51: Max 8,2OO Mln 12 Mean 275 Ac-ft 199,400

Peak discharge (base. 1, 

cfs (13.28 ft)J Dec. 8 (10 ~. 

(2 a.m.) 1,610 cfs (6.97 ft).

* Discharge measurement made on this day.

500 cfs). Nov. 20 (4 p.m.) 11.700 efs (15.62 ft); Dee. 5 (4 p.m.) 7.960 

) a.m.) 4,530 cfs (10.47 ft)j Dec. 14 (9 a.m.) 2,890 cfs (8.76 ft)j May 11 tl.
SACRAMENTO RIVER BASIN 397

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. 30 sq mi, approximately.

Records available. December 1926 to September 1951.

Gage. Staff gage read at odd times. Datum of gage is 5,000.0 ft above mean sea level 

("levels by Nevada Irrigation District). Gage readings have been reduced to elevations 

above sea level.

Extremes. Maximum contents observed during year, 70,500 acre-ft on many days in April and 

May (elevation, 5,565.9 ft); minimum observed, 38,500 acre-ft Nov. 16 (elevation, 

5,523.8 ft).

1926-51: Maximum contents observed, 70,500 acre-ft one or more days in 1937, 1943, 

1950 and 1951 (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 

Eegan in November 1926. Capacity, 68,200 acre-ft between elevations 5,400 ft (bottom 

of outlet tunnel) and 5,563 ft (crest of concrete-arch dam) above mean sea level. 

Flashboards 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. 390 ), and releases it through Bowman-Spaulding Canal (see p. 398 ) which conveys 

it to reservoirs of Pacific Gas & Electric Co. Water is eventually used for irrigation 

by Nevada Irrigation District. Record of contents, computed from gage readings made at 

odd times, shows total contents, all of which is available for release.

Cooperation. Record of gage heights furnished by Nevada Irrigation District.

Contents, In acre-feet, water year October 1950 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

Oct.

49,200

_

_

48 , 400

-

47,800

-

-

-

-

46,500

46,300

_

45,600

-

_

-

-

-

-

_

-

-

43,100

-

42,000

_

-

42,100

-

42,200

Nov.

_

42,200

_

_

41,600

_

-

-

_

-

_

39,300

_

_

-

38,500

-

-

47,000

52,900

62,400

_

63,300

63,700

64,000

64,400

64,700

-

65,700

65,200

-

Dec.

64,700

_

65,700

68,600

68,700

68,700

69,400

69,000

68,800

68,800

68,700

68,600

68,600

69,200

69,100

69,000

68,900

68,800

68,800

68,700

68,600

68,500

68,400

68,400

68,100

68,000

67,800

67,600

67,500

67,300

67,200

Jan.

66,800

66,600

66,500

66,400

66,200

66,000

65,700

65,500

65,200

65,000

64,800

64,500

64,400

64,200

64,000

63,900

63,700

63,600

63,400

63,300

63,200

64,300

65,000

65,500

65,800

66,000

65,800

65,800

65,800

65,800

65,600

Feb.

65,500

65,300

_

65,600

66,200

66,800

67,100

67,400

67,700

67,900

68,200

68,500

68,600

_

68,600

68,600

68,500

68,400

68,400

68,400

68,400

68,400

68,200

68,000

67,900

67,700

67,700

67,600

_

_

-

Mar.

67,600

67,500

67 , 300

67,200

67,000

66,800

66,700

65,800

65,600

65,500

65,300

64,900

64,700

64,400

64,200

64,000

64,300

64,900

65,700

65,800

65,800

65,800

65,800

_

65,900

66,100

66,100

66,200

66 , 300

66,300

66,400

Apr.

66,600

66,800

66,800

66,800

66,800

67 , 400

67,700

68,000

68,300

68,800

69,400

70,000

70,500

70,500

70,500

70,500

70,500

70,500

70,500

70,400

70,500

70,500

70,500

70,500

70,500

70,400

70,400

70,500

70,500

70,400

-

May

70,400

70,400

70,200

70,300

70,300

70,400

70,400

70,400

70,500

70,500

70,500

70,500

70,500

70,500

70,500

70,500

70,500

70,5.00

_

70,500

70,500

70,500

_

70,500

70,500

70,500

70,500

_

70,500

70,400

June

70,300

70,000

70,000

70,000

69,900

70,100

70,100

70,400

70,400

70,400

_

70,300

70,300

70,300

70,300

70,300

70,100

_

-

70,000

70,000

70,000

70,000

70,000

_

69,800

July

69,600

69,400

69,200

-

67,600

_

66,800

66,300

-

.

65,400

65,000

64,600

64,200

63,600

_

62,800

62,300

61,800

61,500

61,000

60,600

_

59,900

59,700

59,500

59,200

59,000

58,800

58 , 500

Aug.

58,600

58,400

58,200

58,000

57,700

57,500

_

57,200

56,900

56,700

56,400

56,200

56,000

55,600

55,400

55,200

54, 900

54,700

54,400

54,200

.

_

53,400

53,100

-

.

52,400

_

52,000

51,700

51,500

Sept.

51,200

51,000

50,800

_

50,300

50,000

49,700

49,500

49,200

-

_

_

_

-

47,700

_

-

_

_

-

_

_

_

_

-

.

_

45,000

44,800

44,600

-

Monthly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31...................

Calendar year 1950......

Sept. 30...................

Water year 1950-51......

Elevation 

(feet)

_

_

5,561.7

-

5,559.8

5,562.3

5,560.8

5,565.8

5,565.7

5,550.9

5,542.1

5,532.6

-

Contents 

(acre-feet)

e49,400

e42,200

e65,200

67,200

-

65,600

67,600

66,400

70,400

70,400

e69,800

58,500

51,500

44,600

-

Change In contents 

during month 

(acre-feet)

-7,200

+23,000

+2 , 000

+59,800

-1,600

+2,000

-1,200

+4,000

0

-600

-11,300

-7,000

-6,900

-4,800
398 SACRAMENTO RIVER BASIN

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 1951.

Gage.--Water-stage recorder. Altitude of gage is 5,400 ft (from topographic map).

Average discharge.--24 years, 146 cfs.

Extremes.--Maximum daily discharge, during year 239 cfs July 6; no flow Nov. 25, 26, June 9,

'1927-51: Maximum daily, 262 cfs Aug. 2-9, 29, Sept. 10-13, 1928; no flow at times 

during each year except 1943-45, 1948.

Remarks. Records good except those below 40 cfs, which are fair. Canal diverts from left 

bank of Canyon Creek below Bowman Lake. "Vater is delivered to Lake Spaulding and, after 

passing through several powerhouses, is used for irrigation by Nevada Irrigation District.

Cooperation. --Water-stage recorder graph and four discharge measurements furnished by Nevada 

irrigation District.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

e

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

231

234

233

233

232

232

233

232

232

231

231

232

234

235

234

235

*235

235

235

234

233

234

234

233

230

210

184

201

213

158

174

6,967

225

13,820

Nov.

216

228

*232

232

233

233

234

*236 235-

233

232

231

231

210

197

188

163

52

11

14

.7

.4

.3

.1

0

0

16

136

177

177

-

4,348.5

145

8,620

Dec.

176

175

46

25

90

129

131

129

128

136

157

157

165

173

173

172

172

172

177

187

196

206

209

217

223

224

223

227

230

213

213

5,251

169

10,420

Jan.

224

227

227

228

230

234

233

233

233

232

222

218

218

217

218

218

209

198

197

196

190

107 109-

134

177

188

195

196

193

209

223

6,333

2O4

12,560

Feb.

224

224

200

150

144

143

160

160

161

144

125

HI

168

178

196

2O6

206

206

212

224

224

225

229

'229 232

229

230

232

_

-

5,405

193

1O,72O

Mar.

233 230"

226

226

224

225

225

226

226

226

226

225

224

225

224

225

229

23O

229

227

226

228

228

226

226

227

229

228

223

221

220

7,013

226

13,910

Apr.

219

220

221

222

221

220

219

219

195

162

156

156

156

156

156

158

157

156

168

173

182

186

185

184

184

185

189

165

173

179

-

5,522

184

1O.95O

May

198

215

212

195

191

189

198

200

199

179

140

146

161

170

172

170

168

165

164

165

166

165

165

170

174

172

174

184

187

186

*193

5,533

178

10,97O

June

*204

207

203

204

203

57

.1

.1

*O

O

1.2

2.6

2.6

2.6

2.7

2.7

2.7

2.7

2.7

9.3

6.7

2.7

2.7

2.7

2.6

2.6

2.6

2.6

2.6

110

-

1,243.8

41.5

2,470

July

223

232

233

233

237

239

233

223

225

*227

232

231

231

234

233

233

234

232

230

229

227

226

226

226

218

224

222

221

222

2 2O

218

7,074

228

14.O30

Aug.

218

215

218

218

216

214

213

213

213

214

213

211

212

212

212

211

211

211

210

208

207

207

206

206

206

205

205

203

202

20?

202

6,512

210

12,920

Sept.

201

2O2

2O2

199

199

199

198

199

198

198

198

194

189

186

185

187

*179

16S 170"

171

170

175

179

182

184

192

200

207

217

222

-

5,750

192

11,400

Calendar year 1950: Max 236 Mln o Mean 136 Ac-ft 98,470

Water year 1950-51: Max 239 Mln o Mean 183 Ac-ft 132, 8OO

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 399

Canyon Creek below Bowman Lake, Calif.

Location. Lat 39°26', long. 120°40 I , in SEij 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.--31.7 sq mi.

Records available. January 1927 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 5,100 ft (from topographic map).

Average discharge.--24 years, 35.2 cfs.

Extremes.--Maximum discharge during year, 2,520 cfs Dec. 4 (gage height, 6.28 ft), from 

rating curve extended above 820 cfs; minimum, 0.1 cfs Sept. 9-10.

1927-51: Maximum discharge, that of Dec. 4, 1950; no flow at times when there is no 

leakage from dams above station.

Remarks.--Records good except those for periods of fragmentary or no gage-height record, 

which are fair. Flow regulated by Bowmai} Lake beginning in 1926 (see p. 397 ) and 

diversion into Bowman-Spaulding Canal (see preceding page). Bowman Lake receives water 

from Middle Yuba River through Milton-Bowman tunnel (see p. 390).

Cooperation.--Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Apr. 13 to June 20)

1.3 

1.5 

1.7

0.1 

.7 

1.7 

2.7 

4.9

1.9 

2.1 

2.4 

2.8 

3.2 

3.6

76

146

238

348

4.0 

4.5 

5.0 

5.5 

6.0

484

700

1,000

1,410

£.,040

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

£9

30

31

Total

Mean

Ac-ft

Oct.

0.6

.6

.5

$

.6

.7

.6

.6

.6

.6

.5

.6

.6

.6

.5

.6

.6

.6

.6

.6

.6

.6

.8

2.9

3.5

4.0

3.2

8.5

-£ .3 11

49.5

1.60

98

Nov.

1.7

1.5

*1.4

1.0 

.9

.7

.7

.7

.8

.7

.9

1.9

3.7

8.7

14

14

34

100

f28

f!5

36

£3

14

a7

a5

a4

a3

f2.1

1.7

1.7

327.8

10.9

650

Dec.

2.0

2.3

148

1.600 

402

364

1,410

1,460

717

318

260

246

227

625

532

285

195

150

89

76

34

14

4.5

3.0

2.7

2.4

2.1

1.9

1.9

276"

9,178.5

296

18,210

Jan.

2.0

TTs"

i!s

1.7

1.7

1.7

1.7

1.7

1.8

2.0

2.2

2.4

1.8

1.7

1.5

1.9

4.6

2.6

1,7

6.9

38

4.8

3.7

£.8

3.2

3.4

2.6

2.6

2.5

2.5

113.0

3.65

224

Feb.

2.3

1.7

575

9.1 

16

5.7

4.6

4.4

3.7

20

53

25

27

43

26

11

6.8

3.0

3.7

2.8

3.0

2.9

3.2

4.6

5.6

5.2

5.3

4.4

_

-

306.5

10.9

608

Mar.

4.5

5.8

8.5

9.3 

13

21

19

14

14

16

16

20

18

17

13

9.8

8.0

8.2

9.3

8.2

6.1

5.8

5.7

5.8

6.1

6.2

6.2

6.2

7.6

' 7.6

6.2

322.1

10.4

639

Apr.

4.8

4.4.

4.5

5.6 

5.8

5.2

5.0

4.9

4.6

24

44

112

277

339

33e

293

298

280

254

238

241

216

226

212

190

163

135

282

241

159

-

4,604.8

153

9,130

May

99

75

75

148 

135

138

129

14£

192

£69

552

404

280

195

156

207

285

351

387

411

374

364

345

315

£96

312

315

312

259

183

142

7,847

253

15,560

June

127

73

50

44 

i3-

57

204

228

*2T9

*214

219

209

195

174

172

174

167

163

146

131

114

107

100

94

89

81

76

72

81

49

3,872

129

7,680

July

~8.5 16

4.8

1.8 

1.2

.7

.5

.5

.4

ii

1.1

.6

.4

.4

.4

.4

.4

.4

.4

.5

.4

.4

.4

.5

.6

.6

.6

.6

1.0

1.2

1.0

46.9

1.51

93

Aug.

~78 1.0

.8

.8 

.6

.6

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.4

.4

.4

.4

.4

.4

.3

74

.4

.4

.4

14.6

0.47

29

Sept.

0.4

.3

.2

72 

.3

.3

.3

.2

.2

.2

.3

.5

.3

.4

.3

.4

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

-

10.5

0.35

21

Calendar year 1950: Max 1,600 Mln 0.2 Mean 94.8 Ac-ft 68,610

Water year 1950-51 : Max 1,600 Mln 0.2 Mean 73.1 Ac-ft 52,950

* Discharge measurement made on this day.

a No gage-height record; discharge Interpolated.

f Fragmentary gage- height; discharge computed on basis of reconstructed graph.
400 SACRAMENTO RIVER BASIN

South Yuba River near Washington, Calif.

Location. Lat 39°22', long. 120°45', in SE£ sec. 5, T. 17 N., R. 11 E., on right bank 0.2 

mile downstream from Canyon Creek and 2.3 miles east of Washington.

Drainage area. 197 sq mi.

Records available.--March 194S to September 1951. Prior to October 1949, published as 

"south J?'orK Yuba River."

Gage. Water-stage recorder. Altitude of gage is 2,810 ft (from topographic map). Prior 

£0 Oct. 1, 1948, water-stage recorder at site 0.8 mile downstream at different datum.

Average discharge.--9 years, 286 cfs.

Extremes.--Maximum discharge during year, 37,100 cfs Nov. 20 (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.

194S-51: Maximum discharge, that of Nov. 20, 1950; minimum, that of Oct. 18, 1950.

Remarks. Records good except those for periods of no gage-height record, which are fair.

 FTow regulated by Lake Spaulding (capacity, 70,500 acre-ft), Bowman Lake (see p. 397), 

and by many smaller reservoirs. Diversion for power and irrigation above station.

4.1 

4.5 

5.0 

5.5 

6.0

16

55

115

189

288

Rating tables, water year 195O-51 (gage height, in feet, 

and'discharge, in cubic feet per second)

Oct. 1 to Nov. 2O

7.O

8.0

9.0

1O.O

12.0

580 

1,04O 

1,690 

2,690 

5,57O

14.0 9,330

17.0 16,200

20.0 25,200

4.0 15

4.5 64

5.0 129

5.5 211

Nov. 21 to Sept. 3O

6.0 319

7.0 620

8.0 1,100

9.0 1,780

1O.O 2,76O

12.O 5,67O

14.0 9,33O

16.0 13,700

Discharge, in cubic feet per second, water year October 195O 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

Ao-ft

Oct.

IS

16

16

17

23

26

22

21

*20

20

20

19

18

18

18

18

20

18

20

20

20

20 

23

39

64

191

243

97

67

273

IW

1,621

52.2

3,220

Nov.

137

112

102

98

97

94

92

89

W

89

89

89

99

118

106

407

598

ll.OOO

*7,300

25,100

*12,300

1,850 

707

382

256

209

41O

165

146

149

6O,479

2,O16

120.OOO

Derc.

152

140

6,320

7,110

2,2OO

2,540

6,830

10,200

5,16O

2,420

1,780

1,650

1.17O

3,390

3,640

1,930

1,280

920

648

481

433

366 

305

290

336

336

24O

188

176

176

168

62,975

2,031

124,900

Jan.

160

154

188

193

173

162

157

154

152

168

181

173

16O

149

T62

158

243

725

360

272

497

1,510 

672

472

394

363

343

307

272

244

230

9,548

3O8

18,940

Feb.

219

207

217

619

960

498

450

416

*378

389

583

488

394

358

305

279

268

244

230

230

222

211 

202

200

200

195

190

185

_

-

9,337

333

18,520

Mar.

185

180

170

T5o

2OO

250

3OO

270

290

265

24O

240

280

312 32"l

331

3O5

277

284

293

30O

284 

268

265

272

263

252

246

268

263

234

8,088

261

16,040

Apr.

222

220

220

252

322

288

295

295

314

336

353

389

590

688

684

613

583

534

494

906

1.O8O

1.410 

1,170

1,110

876

656

469

1,190

928

652

18,139

605

35,980

May

534

469

TZl

*1,28O

87O

1,070

799

l.OOO

1,27O

1,61O

2,880

1,560

1,030

790

749

1,080

1,36O

1,560

1,61O

1,590

1,490

1,450 

1,300

1,290

1,210

941

931

1,080

781

776

499

35,580

1,148

70,57O

June

319

22TT

191

196

173

162

238

274

270

257

257

246

232

204

20O

2OO

195

190

178

162

154

135 

129

117

110

*104

99

92

100

80

-

5,490

183

10,890

Calendar year 1950: Max 23,10O Min 13 Mean 666 Ac-ft 481,

July

43

37

33

30

29

29

29

29

29

28

28

28

28

28

27

27

27

27

27

26

26

26 

26

25

25

25

25

25

24

2T

24

864

27.9

1,710

900

Aug.

24

24

23

23

23

23

23

22

22

22

22

22

21

21

*21

21

21

21

22

22

22

22 

22

22

22

23

23

23

22

22

22

688

22.2

1,360

Sept.

22

22

21

20

21

20

2O

20

20

20

20

2O

20

20

20

19

19

19

19

19

19

18 

18

17

17

14

TF

16

17

18

-

570

19.0

1,130

Water year 195O-51: Max 23,1OO Min 14 Mean 584 Ao-ft 423,300

Discharge measurement made on this day. 

Note. No gage-height record Feb. 24 to Mar. 13 and July 8 to Aug. 21; discharge estimated on basis 

of recorded range in stage and records for Middle Yuba River above Oregon Creek, 1 discharge measurement, and interpolation.
SACRAMENTO RIVER BASIN 401

Yuba River at Narrows Dam, Calif.

Location. Lat 39°14', long. 121°16', In SW£ sec. 14, T. 16 N., R. 6 E., on left bank 

upstream from spillway of Narrows Dam, 1 mile upstream from Deer Creek,and 2.5 miles 

northeast of Smartvllle.

Drainage area.--1,110 sq ml.

Records available.--October 1941 to September 1951. June 1903 to September 1941 (including now or Ueer Creek) at site 2 miles downstream, published as at Smartvllle."

Gage.--Water-stage recorder, flow meter In Penstock and watt meters In powerhouse just

frelow dam. Datum of gage, 526.99 ft above mean sea level (levels by Corps of Engineers).

Average discharge.--10 years, 2,473 cfs.

Extremes. Maximum discharge during year, 109,000 cfs Nov 21, Including flow through 

powerhouse, from rating curve extended above 25,000 cfs on basis of computations of 

flow over spillway of dam of 80,000 cfs; minimum daily, 145 cfs Sept. 22-23.

1941-51: Maximum discharge, that of Nov. 21, 1950; no flow Nov. 8 to Dec. 2, 1941, 

Jan. 23-27, 1949, water being stored at dam.

Remarks.--Records good. Diversions for power and irrigation above station. Flow regula- 

 by Lake Spaulding beginning in 1912 (capacity, 74,500 acre-ft), Narrows Reservoir

beginning in 1941 

beginning in 1926

capacity, 70,000 acre-ft), Bowman Lake (see p. 397 ), Fordyce Lake 

capacity, 46,700 acre-ft), and many smaller reservoirs. Records

given herein show total flow over Narrows Dam spillway and through and past power plant.

Discharge, In cubic feet per second, water year October 1950 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.

300

300

300

300

300

258

m215

215

315

215

215

215

215

215

215

215

442

710

710

690 

690

690

690

632

700

700

710

720

750

13, 152

424

26,090

Nov.

725

725

725

725

725

725

725 

725

725

725

730

730

730

730

730

730

916

32,500

39,400

61,700

65.400

18, 000 

9,750

6,740

5,140

4,240

3,760

3,540

3,110

3,080

-

268,906

8,964

533,400

Dec.

3,160

3,040

23,300

35,400

15,600

12,300

26,800 

57.500

30, 200

16,500

12,000

10,200

8,600

16,100

22,700

15, 000

10, 700

8,540

7,140

6,020

5,500

4,700 

4,220

5,800

5,560

5,560

5,080

2,850

2,680

2,600

2.550

559,260

11,590

712,600

Jan.

2,540

2,270

2,550

2,800

2,460

2,270

1.990 

2,180

2,040

2,510

3,350

2,900

2,430

2,230

2,520

2,900

3,540

15, 500

9,500

6,120

7,140

25 . 900 

15, 600

10, 500

8,400

7,290

6, 570

5,940

5,400

4,840

4,400

174,360

5,625

345,800

Feb.

4,050

3,760

5,580

6,510

14.500

10, 400

8,210 

7,690

6,950

6,580

8,200

9,460

7, '480

6,560

5,850

5,510

4,870

4,760

4,240

4,000

4,060

5,750 

5,490

5,240

3,190

3,210

5,160

2.950

_

_

-

159,750

5,705

316,900

Mar.

2,820

2,740

2.570

2,850

3,670

4,050

5.400 

4,570

4,870

4,430

5,790

5,550

5,610

5,980

4,240

4,370

4,370

3,980

5,890

5,920

4,140

4,240 

4,050

5,920

3,980

4,010

3,950

3,820

3,850

5,950

5,640

121,220

3,910

240, 400

Apr.

5,410

5.520

5,550

5,410

3,790

4,080

4,170 

4,250

4,500

5,110

5,430

5,330

5,470

5,880

6.000

5,640

5,410

5,110

4,670

4,670

4,860

5,000 

4,860

4,660

4,240

3,850

5,490

4,600

4,910

5,760

-

137,230

4,574

272,200

May

3,320

*3,130

3,410

6,380

5,470

5,250

4,940 

4,740

5,290

5,970

8'. 600

7,060

5,470

4,740

4,240

4,570

5,150

5,580

5,860

5,760

5,500

5,520 

5,100

4,900

4,660

4,520

4,520

4,520

5,700

5,540

2.980

155,990

4,967

305, 400

June

2.500

2,200

2,040

1,920

1,860

1,800

1,740 

1,780

1,700

1,640

1,600

1,560

1,510

1,470

1,420

1,400

1,510

1,230

1,280

1,220

1,170

1,150 

1,080

1,040

989

965

935

895

809

814

-

43, 207

1,440

85,700

July

790

768

734

680

600

591

608 

598

620

550

570

570

585

516

541

580

660

720

720

720

670

485 

525

550

550

550

525

460

455

525

495

18,451

595

56,600

Aug.

490

495

500

400

400

490

470 

460

460

493

405

395

490

500

500

420

455

525

525

455

455

580 

715

715

715

715

715

715

715

715

715

16,578

528

52,490

Sept.

715

710

700

7OO

700

695

560 

290

505

560

695

695

695

550

275

270

540

675

675

675

480

145 

145

500

675

675

675

485

150

150

-

15,760

525

31,260

Calendar year 1950: Max 65,400 Mln 205 Mean 4,081 Ac-ft 2, 955,000

Water year 1950-51: Max 6B,400 Mln 145 Mean 4,059 Ac-ft 2, 939,000

Peak discharge (base. 7.100 cfs). Nov. 18 (ll p.m.) 69,000 cfs; Nov. 21 (l a.m.) 109,000 cfs; 

Dec. 3 (10:30 p.m.) 68,100 cfs; Dec. 8 (5 p.m.) 49,000 cfs; Dec. 15 (7 a.m.) 25,700 cfs; Jan. 18 

(11:30 a.m.) 22,000 cfs; Jan. 22 (11 a.m.) 27,200 cfs; Feb. 5 (ll a.m.) 16,700 cfs; Feb. 12 (2 a.m.) 

11,500 cfs; May 11 (11 a.m.) 10,500 cfs.

* Discharge measurement made on this day.
402 SACRAMENTO RIVER BASIN

Deer Creek near Smartville, Calif.

Location. Lat 39°13'20", long. 121°16'00", in sec. 23, T. 16 N., R. 6 E., on left bank 

9WTt upstream from highway above county bridge, 1 mile upstream from mouth and 

2 miles northeast of Smartville.

Drainage area. 83.5 sq mi.

Records available. June 1935 to September 1951.

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. 16 years, 148 cfs.

Extremes. Maximum discharge during year, 5,970 cfs Nov. 20 (gage height, 10.35 ft): minimum, 3.1 cfs Sept. 15.

1935-51: Maximum discharge, 11,300 cfs Mar. 9, 1943 (gage height, 13.62 ft), from 

rating curve extended above 5,200 cfs by logarithmic plotting; minimum, 0.1 cfs Aug. 

4-6, 15, 1940.

Remarks.--Records good. Flow partly regulated by Deer Creek Reservoir (capacity, 1,400 

acre-ft). Diversions above station for power and irrigation. At times water from South 

Yuba River is diverted into Deer Creek above station.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to No

2.7

4.0

6.0

14

27

2.3 

2.6 

3.0 

3.5 

4.0 

4.5

72

111

176

274

398

565

5.0 

6.0 

7.0 

8.0 

9.0

785

1,380

2,240

3,250

4,350

Nov. 21 to Sept. 30

3.0 176 5.0 735 

3.5 267 6.0 1,360 

4.0 385 7.0 2,240 

4.5 535 8.0 3,250 

Mote. Same as preceding 

table below 3.0 ft.

Discharger, in cubic feet per second, water year October 1950 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

50

51

Total

Mean

Ac- ft

Oct.

a3.4

a3.4

a3.2 3"7£

5.6

5.0

4.0

3.9

3.7

3.6

5.6

3.6

3.5

3.5

3.5

5.5

8.1

7.8

7.4

5.6

4.6

4.4

4.6

5.0

6.6

66

84

35

27

97

35

459.5

14.8

911

Nov.

21

14

12

10

9.5

9.5

9.5

9.2

8.4

8.1

7.8

57T

8.8

13

14

184

131

5,650

784

5,780

"2,010

504

181

134

76

61

53

48

45

46

-

11,649.9

388

23,110

Dec.

45

40 2,5'gQ'

*626

209

599

923

1,960

7G9

508

660

521

455

1,930

1,850

678

574

510

467

422

398

382

372

565

558

352

348

342

340

348

540

20,011

646

39,690

Jan.

330

328

586

380

342

530

328

522

32T

645

1,070

488

390

355

546

461

606

2,230

774

521

1,580

2,660

748

590

521

479

455

451

454

419

402

19,873

641

39,420

Feb.

392

385

380

623

896

491

437

*413

400

413

602

664

458

419

402

390

398

405

375

372

382

550

287

243

258

243

255

247

_

_

-

11,540

412

22,890

Mar.

243

238

229

590

620

916 7S°5"

402

473

355

518

298

308

158

157

129

118

107

100

96

94

92

87 ITS'

188

*257

255

242

224

256

245

8,595

271

16,650

Apr.

227

21g

198

216

207

202

176

63

59

142

152

168

139

122

110

118

112

89

66

61

65

59

58

55

55

52

35

1??

198

142

5,682

123

7,300

Calendar year 1950: Max 5,780 Mln 1.7 Mean 184

May

73

*65

107

690

T5T

as

82

147

97

59

54

50

46

49

65

97

98

88

66

66

62

47

42

42

36

32

51

55

25

15

10

2,587

85.5

5,150

June

11

12

11

10

10

11

10

10

11

14

11

9.5

14

11

8.8

8.8

8.8

9.2

10

10

8.8

8.8

9.2

10

8.4

*8.1

T7B" 7.8

7.8

7.8

295.6

9.85

586

July

7.8

7.8

7.8

7.8

8.8

8.4

8.1

8.1

8.8

8.4

7.8

TB~ 49

8.1

8.1

7.8

7.8

7.0

5.8

5.4

5.2

5.4

5.6

5.6

5.4

5.6

5.6

5.0

BTTT

5.4

5.2

262.6

8.47

521

Aug.

4.8

5.0

5.2

5.8

8.1

7.4

5.4

6.0

6.4

5.6

4.6

5.8

6.0

5.6

5.6

5.4

*5.6

5.4

5.0

4.8

4.4

4.4

4.2

3.7

3.7

3.9

5.6 4~7S~

4.2

5.9

4.0

157.7

5.09

515

Sept.

3.9

4.2

4.0

4.2

3.9

3.9

3.9

5.9

3.6

3.6

3.5

3.5

3.3

3.3

5.2

3.3

3.7

3.7

3.7

3.9

4.0

3.7

4.2

4.4

4.0

3.6

3.5

3.6

4.0

4.6

113.8

3.79

226

Ao-ft 133.100

Water year 1950-51: Max 3,780 Mln 3.2 Mean 217 Ao-ft 156^700

Peak discharge (base, 5.500 cfs). Nov. 20 (11 a.m.) 5,970 cfs (10.35 ft); Dec. 3 (7 p.m.) 4,470

cfs (9.10 ft}; Dec. 14 (11:30 p.m.) 5,890 cfs (8.58 ft); Jan. 18 (8 a.m.) 5,000 cfs (9.54 ft); Jan.

22 (12:30 a.m.) 5,150 cfs (9.67 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records for Oregon Creek near North San 

Juan.
SACRAMENTO RIVER BASIN 403

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 

oanit 0.2 mile downstream from New York Creek and 0.9 mile northeast of Brownsville.

Drainage area. 20.5 sq mi.

Records available. October 1948 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,220 ft (from topographic map).

Extremes. Maximum discharge during year, 837 cfs Nov. 20 (gage height, 5.40 ft), from 

rating curve extended above 230 cfs on basis of slope-area determination of peak flow; 

minimum, 1.9 cfs Oct. 1.

1948-51: Maximum discharge, that of Nov. 20, 1950; minimum, 0.3 cfs Aug. 24, 1950.

Remarks. Records good. No large diversions above station.

Discharge, In cubic feet per second, water year October 1950 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.

1.9

27T

2.2

2.2

3.8

3.3

2.7

2.6

2.6

2.6

2.7

2.2

2.1

2.2

2.1

2.7

3.6

*3.1

2.9

2.9

2.9

2.9

3.6

4.7

10

36

20

19

20

48

IT

230.6

7.44

457

Nov.

7.7

6.1

5.5

4.9

4.7

4.5

4.5

4.5

4.0

5.8

3.8

4.5

6.8

6.8

6.8

*106

*107

420

164

*562

*291

81

47

36

29

25

23

20

19

22

2,030.9

67.7

4,030

Dec.

23 SB462

T5T

80

177

182

318

172

108

160

98

78

279

191

119

97

85

76

64

54

49

46

43

41

40

39

38

37

40

36

3,420

110

6,780

Jan.

34

35

62

54

40

36

34

*34

34

81

170

84

60

53

141

107

304

443

214

148

444

ITS

238

186

157

136

124

115

110

97

90

4,291

138

8,510

Feb.

85

82

102

260

*?55

143

119

105

97

108

162

127

99

91

86

80

99

100

82

86

99

88

80

74

n

78

80

76

_

-

3,021

108

5,990

Mar.

74

70

65

112

202

246 '?&

157

196

139

121

113

103

96

92

90

82

78

*74

72

67

65

61

59

56

55

53

51

51

51

11

3,022

97.5

5,990

Apr.

47

43

42

43

43

44

45

35

32

31

30

29

29

30

29

29

31

28

28

28

29

28

24 ZF

26

27

28

78

W

29

-

1,030

34.3

2,040

Calendar year 1950: Max 590 Mln 1.5 Mean 40.5

May

27

26

88

~SB 126

40

34

30

28

26

*29

31

28

26

25

25

23

22

21

21

21

22

20

18

18

17

17

17

18

16

15

923

29.8

1,830

June

15

15

17

15

14

14

14

14

14

14

15

13

13

13

13

14

11

11

11

11

11

11

11

10

10

12

9.6

9.2

5^

9.6

-

374

12.5

742

July

9.2

9.9

FT?

8.8

8.1

7.8

7.8

7.8

7.8

7.8

6.8

*6.8

6.8

6.5

6.5

6.2

6.0

5.7

5.4

5.4

5.4

5.1

5.1

5.1

4.8

4.8

4.8

4.5

4.5

4.5

4.3

199.2

6.43

395

Aug.

4.3

4.1

4.1

4.1

4.1

4.1

4.5

T^

3.7

3.4

3.4

3.4

3.4

3.4

3.4

3.2

3.4

3.4

3.2

3.2

3.4

3.4

3.4

3.7

3.7

3.2

370" 3.0

3.2

3.4

3.2

110.7

3.57

220

Sept.

3.2

3.4

3T?

3.2

*3.4

3.2

3.2

3.0

3.0

2.8

2.6

2.4

27?

2.4

2.4

2.4

3.4

3.2

3.2

3.2

3.2

3.0

3.0

3.0

3.0

2.8

2.8

2.8

3.0

3.2

-

89.0

2.97

177

Ac-ft 29.300

Water year 1950-51: Max 562 Mln 1.9 Mean 51.3 Ac-ft 37 j 160
404 SACRAMENTO RIVER BASIN

Dry Creek at Virginia Ranch, Calif.

Location. Lat 39°19'20", long. 121°18'45", in NW£ sec. 21, T. 17 N. , R. 6 E., on right 

DanK 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. 5 sq mi.

Records available. October 1948 to September 1951.

Gage. --Water-stage recorder. Altitude of gage is 1,060 ft (from topographic map).

Extremes. Maximum discharge during year, 7,400 cfs Nov. 20 (gage height, 9.15 ft), from 

raring curve extended above 1,700 cfs on basis of slope-area determination of peak flow; 

minimum, 0.6 cfs Oct. 11, 12, 13, 14, July 20.

1948-51: Maximum discharge, that of Nov. 20, 1950; minimum, 0.4 cfs Nov. 6, 1949.

Remarks. Records good except those above 2,000 cfs, wnich are fair. Medium and low flows 

 partly regulated by Lake Mildred (capacity, 1,500 acre-ft). Several diversions above 

station for irrigation.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. t 1-25)

0.8 

.9

1.0

1.1

1.2

0.1 

.7 

1.5 

2.6 

4.4

1.3 

1.5 

1.8 

2.1 

2.4

7.0 2.8 

3.2 

3.6 

4.0 

5.0

146

232

359

515

1,020

6.0 

7.0 

8.0 

8.5 

9.0

1,780

3,040

4,840

5,910

7,040

Discharge, In cubic feet per second, water year October 1950 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.

0.8

.9

.9

.9

1.1

1.1

.9

.9

.9

.8

.7

.7

.6

TS

.8

.8

.9

*.9

.9

.8

.8

.8

.9

1.1

1.9

127

48

24

28 13-6

~2T

412.4

13.3

818

Nov.

14

12

9.7

8.8

7.9

7.6

7.3

7.0

6.5

6.2

6.2

6.5

7.6

9.1

9.4

262

*465

3,460

*718

*5,140

*2,420

323

165

111

82

66

56

49

45

47

-

L3,534.8

451

26,850

Dec.

50

45

S.lSO"

751

281

714

941

1,920

729

378

639

389

275

1,300

933

431

317

252

214

185

161

146

133

121

114

106

99

96

92

105

96

15,163

489

30,080

Jan.

82

78

237

192

128

106

98

94

94

529

958

359

220

179

539

398

1,170

2.-260

663

435

2,440

3,070

749

531

419

356

311

276

266

238

210

17,685

570

35,080

Feb.

196

183

182

1,020

1, 240

447

328

254

232

240

477

*412

260

224

203

185

207

232

179

192

243

217

185

165

156

167

181

165

_

-

8,372

299

16,610

Mar.

154

141

130

351

674

857 750"

392

526

334

276

243

222

200

189

183

169

157

150

*144

137

130

123

96

45

47

48

50

53

53

53

7,047

227

13,980

Apr.

53

53

54

56

50

46

46

46

46

47

50

46

472 ~54"

52

44

8.2

6.0

5.4

4.9

4.7

4.2

T71

4.7

4.9

5.2

4.9

14

52

46

1,414.5

47.2

2,810

May

8.5

4B~7.9

464

T4T

96

86

67

57

50

*51

55

50

46

40

38

36

35

32

32

30

28

28

27

25

24

23

21

20

19

17

1,703.4

54.9

3,380

June

T5- 16

14

14

14

14

14

14

13

12

12

11

11

9.7

9.1

8.8

8.8

8.5

8.8

8.5

8.2

8.2

6.0

5.2

5.2

5.2

5.2

4.7

4.2

TTS

-

293.5

9.78

582

July

4.2

4.4

5.4

6.2

7.5

2.4

1.7

1.6

1.3

1.3

1.2

*1.1

1.1

1.9

1.8

2.0

1.8

1.5

1.0

.7

1.3

1.5

1.5

2.4

2.5

2.6

2.5

2.4

2.4

2.4

2.4

73.8

2.38

146

Aug.

6.2

775

3.0

3.0

2.8

2.8

2.6

2.6

3.0

3.0

2.5

2.2

2.0

1.9

2.0

1.9

1.9

2.0

2.0

2.0

2.2

2.0

2.0

1.9

2.0

2.0

1.8

T75

1.8

1.8

1.8

73.0

2.35

145

Sept.

2.3

2.5

2.6

T75

2.6

*2.6

2.5

2.5

2.4

2.4

2.3

2.2

tt

2.5

2.5

2.4

2.6

2.5

2.5

2.5

2.4

2.3

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

-

73.3

2.44

145

Calendar year 1950: Max 5,140 Mln 0.6 Mean 166 Ac-ft 120,200

Water year 1950-51: Max 5,140 Mln 0.6 Mean 180 Ac-ft 130,600

Peak discharge (base, 1,900 cfs). Nov. 20 (6 a.m.) 7,400 cfs (9.15 ft); Dec. 3 (11 a.m.) 5,130 cfs 

8.14 ft); DecT 8 (10:30 a.m.} 2,780 cfs (6.83 ft); Dec. 14 (7 a.m.) 2,330. cfs (6.49 ft); Jan. 11 

9:30 a.m.) 2,400 cfs (6.55 ft); Jan. 18 (4 a.m.) 4,740 cfs (7.95 ft); Jan. 21 (8:30 p.m.) 5,320 cfs 

8.23 ft); Feb. 4 (5 a.m.) 2,610 cfs (6.76 ft).

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 405

Yuba River at Marysville, Calif.

Location. Lat 39°08'40", long. 121°34'35", near left bank at Simpson Lane Bridge in 

Marysville, Yuba County, about 2 miles upstream from mouth.

Records available. October 1940 to September 1951 (1940-43, 1945, low-water periods only) 

in reports or Geological Survey. 1939-51 (1939-43, 1945, low-water periods only) in 

reports of Division of Water Resources, Department of Public Works, State of California.

Gage.--Water-stage recorder. Datum of gage is set to datum of Corps of Engineers. Since 

Jan. 1, 1950, auxiliary water-stage recorder at mouth.

Average discharge. 7 years (1943-44, 1945-51), 2,324 cfs.

Extremes. Maximum discharge during year, 78,800 cfs Nov. 21; maximum gage height, 72.04 

rt Nov. 21; minimum discharge, 61 cfs Oct. 18.

1943-44, 1945-51: Maximum discharge, that of Nov. 21, 1950; maximum gage height, 

that of Nov. 21, 1950.

1940-51: Minimum discharge recorded, 34 cfs Oct. 17, 1949.

Remarks. Records good except those for periods of no gage-height record and those for 

dan. 25 to Feb. 3, Feb. 5-20, which are fair. Flow regulated by several reservoirs 

above station. Many diversions above station for power and irrigation.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, in cubic feet per second, water year October 1950 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.

105

105

100

100

 100

98

92

86

60

76

76

67

65

63SB63

63

65

65

65

190

323

385

425

453

666

 

1,040 9~SO"

872

987

982

8,902

287

17,660

Nov.

946

764

726

702

679

666

§66- 661

*666

702

742

715

724

733

746

866

1,310

22,400

49,600

*47,000

55,300

17,400

10,500

8,540

7,900

6,440

5,570

5,270

4,450

4,190

-

257,576

8,586

510,900

Dec.

4,000

3,910

14,100

39,700

 19,100

15,100

30,100

36,700

36,300

19,200

17,400

15,800

12,900

19,700

29,000

19,500

14,900

13,000

11,300

9,980

8,900

7,820

6,640

5,830

5,190

4,820

4,340

3,950

3,680

3,510

3,470

439,640

14,190

872,400

Jan.

3,350

3,190

3,350

4,180

3,680

3,390

3,120

3,100

3,010

4,120

6,530

5,350

3,180

3,070

3,640

5,270

5,300

18,400

19,300

7,600

9,230

32,400 *£i,i60

13,100

10,000

8,400

7,600

6,900

6,300

5,600

5,200

236,160

7,683

472,400

Feb.

4,6OO

4,500

4,300

6,100

20 , 700

15,000

10,000

8,500

6,000

7,500

9,900

12 , 000

11,000

6,000

7,000

6,300

5,800

5,700

5,200

4,900

 5,070

4,680

4,300

3,970

3,600

3,640

3,550

3,350

_

_

-

199,360

7,120

395,400

Mar.

3,140

,060

,670

2,920

,660

,780

.470

,950

,360

,560

,680

,170

,060

,230

,410

,520

,610

,310

,120

,100

,290

* ,440

,340

,230

,230

,360

,340

,240

,200

,340

,070

136,800

4,413

271,300

Apr.

3,760

3,630

3,570

3,710

3,910

4,240

4,350

4,240

4,430

4,980

5,530

5,560

5,640

6,390

6,240

 5,980

5,710

5,390

4,920

4,670

4,860

4,950

4,940

4,560

4,310

3,660

3,440

3,630

5,420

4,080

140,920

4,697

279,500

May

3,360

3,100

3,060

6,640

6,400

5,370

5,320

4,910

5,450

5,920

6,030

6,210

S,190

5,120

4,480

4,460

4,960

5,460

5,820

5,800

 5,510

5,240

5,010

4,790

4,520

4,360

4,130

4,130

3,680

3,330

2,900

155,700

5,023

308,800

June

2,360

2,010

1,790

1,660

1,580

1,520

1,470

1,450

1,430

1,370

1,320

1,290

1,260

1,220

1,180

1,150

1,120

 1,080

1,050

1,010

976

941

906

870

636

801

766

731

696

661

-

36,504

1,217

72,400

July

627

55?

556

522

467

452

417

382

374

355

277

284

328

302

260

 274

302

374

410

416

418

362

260

246

260

246

236

240

217

186 2~40~

10,904

352

21,630

Aug.

177

183

174

160

162

146

154

154

165

168

168

159

134

142

148

165

148

142

131

115

126

134

189

317

347

321

418

373

414

422

4TT

6,590

213

13,070

Sept.

418

414

414

426

435

431

426

295

186

134

233

326

356

386

256

156

124

236

351

382

 406

253

140

98 155"

310

358

386

240

134

-

8,879

296

17,610

Calendar year 1950: Max 55,300 Mln 63 Mean 4,464 Ac-ft 3,231,000

Water year 1950-51: Max 55,300 Min 63 Mean 4,494 Ac-ft 3,253,000
406 SACRAMENTO RIVER BASIN

Bear River Canal near Coifax, Calif.

Location. Lat 39°08', long. 120°57', in SEj sec. 22, T. 15 N., R. 9 E., on right bank

 about 500 ft downstream from diversion dam on Bear River and 2 miles north of Colfax.

Records available. January 1912 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,980 ft (from topographic map). Prior

 Co Mar. 25, 1946, at site 1.5 miles downstream at different datum.

Average discharge.--37 years (1914-51), 260 cfs.

Extremes.--Maximum daily discharge during year, 472 cfs Nov. 10, 12; no flow Mar. 27 to

 Apr. 13, Apr. 16-24.

1912-51: Maximum daily discharge recorded, 498 cfs May 11, 1945; no flow at times.

Remarks.--Canal diverts from left bank of Bear River in sec. 22, .T. 15 N., R. 9 E. Water

 is ±'irst used to develop power at halsey and Wise powerhouses; part of it is then distributed for irrigation and part is eventually spilled into North Fork American River.

Cooperation. Records of daily discharge furnished by Pacific Gas & Electric Co.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

Z

5

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

21

21

25

26

27

2S

23

30

31

Total

Mean

Ac- ft

Oct.

466

464

447

466

438

445

466

469

446

471

471

465

471

465

468

464

433

456

466

462

469

469

471

471

471

471

468

420

4T7

466

461

14,283

461

28,330

Nov.

466

466

468

463

468

467

469

469

469

472

467

472

469

469

464

439

431

276

301

260

169

T76

400

417

461

462

464

440

456

458

-

12,728

424

25,250

Dec.

458

453

410

382

425

460

408

368

431

420

400

435

466

154

437

462

447

465

412

461

465

447

462

449

453

449

466

456

463

461

462

13,700

442

27,170

Jan.

455

437

462

460

463

464

451

466

155

464

464

431

464

453

425

437

466

378

415

465

416

357

355

437

432

447

460

463

466

466

457

13,761

444

27,290

Feb.

450

447

461

437

592

437

464

462

403

465

431

442

453

453

447

456

437

440

431

450

450

450

455

464

463

457

458

464

_

-

12,519

447

24,830

Mar.

455

457

410

425

391

392

396

429

466

467

410

454

465

461

462

464

464

440

453

454

458

442

461

462

458

408

00"

00

0

0

11,504

371

22,820

Apr.

00"

0

0

0

0

0

0

0

0

0

0

0

70

195

0

0

0

0

0

0

0

0

0

78

200

55

176

448

466

-

1,688

56.3

3,350

May

467

455

451

3~55 308

463

464

464

462

463

464

464

464

464

464

464

462

466

465

465

464

456

454

454

455

455

455

455

460

458

447

14,018

452

27,800

June

458

450

461

455

460

460

450

460

392

345

415

354

335

360

458

451

352

333

344

343

340

322

300

3159

386

416

401

359

371

328

-

11,663

389

23,130

July

360

393

385

410

386

389

382

358

388

397

433

405

374

383

381

400

401

401

405

413

354

574

431

423

407

370

388

374

363

386

398

12,115

391

24,030

Aug.

396

383

401

369

556

403

403

405

394

399

386

372

383

396

404

382

402

373

368

382

400

427

427

434

411

362

403

456

TZ5

421

384

12,310

397

24,420

Sept.

348

303

355

396

414

376

335

330

325

328

333

348

342

331

283

284

297

306

276

260

313

292

295

290

450

410

323

528

298

527

-

9,876

529

19,590

Calendar year 1950: Max 473 Min 0 Mean 395 Ac-ft 386,300

Water year 1950-51: Max 472 Min 0 Mean 384 Ac-ft 278,000
SACRAMENTO RIVER BASIN 407

Bear River near Coifax, Calif.

Location.--Lat 39°07'45", long. 120°57'35", in NV/$ sec. 27, T. 15 N., R. 9 E., on right 

bank 0.2 mile downstream from Coifax-Grass Valley highway bridge, 1.4 miles downstream 

from Greenhorn Creek, and 2 miles north of Colfax.

Drainage area.--105 sq mi.

Records available.--November 1911 to June 1917, November 1949 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 1,900 ft (from topographic map). Nov. 1, 1911, to Aug. 7, 1915, staff gages at several sites just above 

diversion dam 0.5 mile upstream at different datum. Aug. 8, 1915, to June 30, 1917, 

staff gage about 0.2 mile downstream at different datum.

Extremes. Maximum discharge during year, 9,620 cfs Nov. 20 (gage height, 21.40 ft), from 

rating curve extended above 3,600 cfs on basis of slope-area determination of peak flow; 

minimum, 0.1 cfs June 26.

1911-17, 1949-51: Maximum discharge, that of Mov. 20, 1950; no flow at times 

1912-13.

Remarks.--Records good except those for period of doubtful or no gage-height record, which 

are poor. Bear River receives considerable water above station from South Yuba River 

and North Fork American River by way of Drum and Alta power plants. Storage and diversions above station for irrigation and power. (See records for Bear River Canal, p.406, 

which diverts 0.5 mile above station.)

Rating tables, water year 1950-51 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used Oct. 14 to Nov. 17, June 25-28)

Oct. 1 to July 12

3.1

31

140

218

424

9.0

10.0

12.0

15.0

18.0

700

1,020

1,790

3,500

5,900

July 13 to Sept. 30

0.8 6.0

3.0 6.5

8.2 7.0

47

107

175

Discharge, In cubic feet per second, water year October 1950 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.

a30

a80

a80 

a70

a70

a60

a70

a 100

a60

a50

a60

a80

*a50

46

19_

90

34

29

59

23

33

47

40

65

61

150

169

51

45

240 2"28~

2,289

73.8

4,540

Nov.

201

180

175 

172

171

115

14T

130

146

*164

146

147

118

200

165

552

689

4,310

*2,300

*5.760

4,600

1,770

1,290

1,190

1,070

994

952

944

869

830

-

30,491

1,016

60,480

Dec.

818

792

4,140 

2,800

1,430

1,770

2,410

*3,050

1,970

1,410

1,420

1,180

1,080

2,830

2,470

1,500

1,180

1,050

994

837

798

750

700

650

650

650

650

650

650

650

600

42,529

1,372

84,360

Jan.

600

600

600 

600

550

550

550

550

550

550

600

600

600

600

600

600

1,050

3,340

1,540

1,050

1,890

4,830

2,030

1,620

1,360

1,220

1,120

1 , 030

980

938

907

34,205

1,103

67,840

Feb.

904

894

885 

998

1,840

*1,140

1,040

983

990

955

1,130

1,050

972

950

900

850

800

750

700

700

600

600

600

600

600

550

500

SCO

_

_

-

23,981

856

47,570

Mar.

500

a500

457 

364

840

1,010

1,440

 997

1,140

894

760

730

736

748

766

754

733

670

640

610

599

583

570

535

553

561

938

924

934

955

894

23,335

753

46,280

Apr.

875

869

859 

882

920

875

872

843

843

837

827

824

824

751

577

798

782

757

754

773

763

457

745

739

664

497

691

712

442

561

22,413

747

44,460

May

350

328

458 

1,160 FVS

568

482

446

424

412

453

441

400

376

347

354

339

332

312

(*)

. a!60

10,605

342

21,030

June

 a90

9.2

9.2

16

46

71

3.5

9.9

2.9

2.9

11

6.4

8.5

3.1

5.9

.1

*1.2

6.7

3.6

10

-

1,217.1

40.6

2,410

July

2.8

7.1

2.1 

4.6

7.5

1.3

7.8

1.2

6.4

1.2

4.8

.8

578

.8

.8

7.8

.9

.8

8.6

52

61

1.0

62

58

60

68

53

61

2.0

69

70

690.1

22.3

1,370

Aug.

59

69

73 

62

1.3

66

68

72

75

55

64

1.2

65

53

59

32

32

12

1.2

22

13

14

25

1.3

9.7

1.2

9.4

1.3

1.1

11

1.2

1,026.9

33.1

2,040

Sept.

10

1.1

¥7? 

1.2

1.1

62

130

158

142

170

133

131

139

124

133

133

143

136

135

102

1.1

6.6

.8

4.5

1.1

1.1

6.6

1.1

2.3

1.2

-

2,020.7

67.4

4,010

Calendar year 1950: Max 5,760 Mln 1.1 Mean 446 Ac-ft 322,700

Water year 1950-51: Max 5,760 Mln o.l Mean 534 Ac-ft 386,400

Peak discharge, (base, 1,500 cfs).--Nov. 18 (6:30 p.m.) 5,720 cfs (17.80 ft); Nov. go (6 p.m.) 9,620

'3 (21.4 ft); Dec. 3 (7:3O p.m.) 7,980 cfs (19.98 ft); Dec. 8 (l p.m.) 3,910 cfs (15.58 ft); Dec. 14 

l/:30 p.m.) 4,060 cfs (15.80 ft); Jan. 18 (9 a.m.) 5,150 cfs (17.17 ft); Jan. 22 (4:30 a.m.) 6,800 

cfs (18.90 ft); Feb. 5 (9 a.m.) 2,630 cfs 13.60 ft); Feb. 11 (9 p.m.) 1,840 cfs (12.10 ft); Mar. 6 

(12 p.m.) 1,770 cfs (11.95 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of records furnished by Pacific Gas and Electric Co. or records for station near Auburn.

Note. Doubtful gage-height record Dec. 22 to Jan. 16, Jan. 29 to Feb. 4, Feb. 7 to Mar. 1, Apr. 29 

to May 3, and May 7 to June 11; discharge computed on basis of records for station near Auburn.
408 SACRAMENTO RIVER BASIN

Bear River near Auburn, Calif.

Location (revised). Lat 39°00'45", long. 121°06'10", in NE^- 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 square miles.

Records available.--December 1940 to September 1951 in reports of Geological Survey. 1922, 

I9i!b-ya, 1929-33, incomplete (gage heights for high-water periods only), in reports of 

Division of Water Resources, Department of Public Works, State of California.

Gage.--Water-stage recorder. Altitude of gage is 1,250 ft (from topographic map). Prior

 fo July 13, 1946, at datum 3.40 ft higher.

Average discharge. 10 years (1941-51), 302 cfs.

Extremes.--Maximum discharge during year, 14,800 cfs Nov. 20 (gage height, 15.00 ft), from 

rating curve extended above 6,200 cfs on basis of computation of peak flow over Combie 

Dam; minimum, 1.6 cfs June 30.

1940-51: Maximum discharge, 19,300 cfs (revised) Jan. 21, 1943 (gage height, 16.45 

ft, present datum), from rating curve extended above 5,000 cfs by logarithmic plotting 

and on basis of computed flow over Combie Dam, 3 miles above station; minimum, 0.5 cfs 

July 14, 1946.

Revisions. The maximum discharge for the water year 1943 has been revised to 19,300 

cfs Jan. 21, 1943 (gage height, 16.45 ft, present datum), superseding figure published 

in Water-supply Paper 981.

Remarks.--Records good. River receives inflow from Yuba River basin above station. Flow 

regulated by Combie Reservoir (capacity 9,000 acre-ft) and other reservoirs. Many 

diversions above station for power and irrigation.

Revisions (water years).--W 981: Drainage area.

3.6

3.7

3.8

4.1

Rating table, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 18 Nov. 19 to Sept. 30

3.3 

6.5

4.4 

5.0 

5.6 

6.2

178

325

560

7.0

8.0

9.0

1O.O

980

1,760

3,050

4,610

3.4

3.5 

3.7 

3.9 

4.2

1.7

3.4

9.1

19

46

5.0 

5.5 

6.0 

7.0

104

178

311

520

1,180

8.0

9.0

10.0

12.0

2,140

3,360

4,790

8,230

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

3O

31

Total

Mean

Ac- ft

Oct.

4.7 

4.4

4.1

4.4

5.4

5.4

5.4

5.0

5.7

5.7

5.7

5.4

5.0

5.0

5.4

*5.0

5.0

4.7

4.4

4.1

H4.1

7.1

32

32

15

15

17

20

14

263.7

8.51

523

Nov.

10

11

88

386

615

596

578

560

412

210

138

138

230

298

292

332

481

3,130

3,840

7.700

7,200 

2,230

1,250

900

694

576

570

570

565

560

-

35,160

1,172

69, 740

Dec.

555 

552

3,120

*4.050

*1,6SO

1,550

3,130

*3, 700

2,950

2,010

1,650

1,310

1,010

2,470

3,490

2,120

1,480

1,160

972

790

673 

643

570

545

545

540

540

535

520

520

515

45, 895

1,480

91,030

Jan.

510 

495

495

495

490

480

466

409

242

224

264

308

448

535

545

545

742

4,390

2,550

1,420

1,660 

7.020

2,840

1,990

1,560

1,310

1,160

1,050

922

852

727

37, 144

1,198

73,670

Feb.

667 

625

576

667

2.060

1,370

1,160

1,100

*980

887

1,080

1,490

1,230

1,060

972

901

845

817

804

739

771 

745

715

752

752

685

560

550

_

_

-

25, 560

913

50, 700

Mar.

661 

673

649

592

958

1,140

2.180

1,470

1,300

1,150

1,040

873

778

764

790

880

1,110

1,070

1,070

1,040

980 

980

817

887

887

880

950

915

929

988

901

30, 302

977

60, loo

Apr.

852 

824

790

859

866

831

838

790

758

727

709

778

685

661

461

581

661

625

614

625

608 

475

400

560

565

413

461

703

709

*274

-

19,703

657

39,080

May

10 

12

62

1.&10

1,150

810

649

351

22

59

336

354

311

282

273

256

253

298

262

196

96 

170

166

127

149

145

57

127

129

72

88

9,082

293

18,010

June

111 

94

109

39

III

59

104

23

6.5

6.2

5.4

1.8

2.7

5.2

2.5

2.0

2.7

3.6

3.6

4.2

5.6 

4.9

4.2

3.6

3.4

3.2

*3.4

3.6

3.6

1.7

-

739.6

24.7

1,470

July

2.2

3.0

3.0

3.0

2.9

2.9

3.0

4.4

4.2

3.4

3.2

3.6

3.9

3.9

4.2

4.2

4.2

3.9

3.9

3.6

4.9 

6.2

6.2

7.2

9.5

9.1

8.1

7.8

7.2

7.2

7.2

151.2

4.88

300

Aug.

5^1 

5.6

5.6

4.2

3.9

3.6

3.4

3.6

3.6

3.6

3.6

3.6

3.9

3.9

3.9

3.9

*3.6

2.5

2.7

2.9

2.9 

2.9

3.0

3.2

3.2

3.2

3.0

3.2

3.2

3.6

3.9

112.8

3.64

224

Sept.

B3.6

3.4

3.4

3.2

3.0

3.2

3.0

3.4

2.9

2.9

3.2

2.7

2.7

3.0

3.9

2.9

2.7

2.7

H2.7

2.5

2.5

2.5

2.5

2.5

2.7

2.7

-

89.1

2.97

177

Calendar year 1950: Max 7,700 Mln 1.7 Mean 447 Ac-ft 323, 3OO

Water yeari950-51 : Max 7,700 Mln 1.7 Mean 559 Ac-ft 4O5,OOO

Peak discharge (base. 5.7OO ofs). Nov. 18 (9 p.m.) 8,O30 cfs (11.9O ft); Nov. 2o (9 p.m.) 14,8OO 

cfs^lS.OO ft); Dec. 3 ^10 p.m.) 9,740 cfs (12.75 ft); Dec. 8 (3:3O p.m.) 4,90O cfs (10.07 ft); Dec.

15 (11 a.m.) 4,060 cfs (9.51 ft); Jan. 18 (12 ra.) 6,660 cfs (11.15 ft); Jan. 22 (5 

(12.61 ft).

* Discharge measurement made on this day.

i.ra.) 9,440 cfs
SACRAMENTO RIVER BASIN 

Bear River near Wheatland, Calif.

409

Location. Lat 39°00', long. 121°25', in sec. 3, T. 13 N., R. 5 E., in midstream on down-

 stream side of bridge on U. S. Highway 99E, 1 mile southeast of Wheatland,and 6.5 miles 

downstream from Rock Creek.

Drainage area. 295 sq mi.

Records available.--October 1928 to September 1951.

Sage.--Water-stage recorder. Altitude of gage is 85 ft (from topographic map). Prior to

 July 17, 1929, staff gage at about same site and at datum 2.58 ft higher. July 17, 

1929, to Oct. 22, 1943, water-stage recorder at several sites within 100 ft of present 

site and at datum 2.58 ft higher.

Average discharge.--22 years (1929-51), 430 cfs.

Extremes.--Maximum discharge during year, 29,100 cfs Nov. 21 (gage height, 20.83 ft); min-

 imum, 1.2 cfs Aug. 22.

1928-51: Maximum discharge, 31,300 cfs Jan. 21, 1943 (gage height, 16.95 ft, site 

and datum then in use), of which 25,600 cfs was in main channel and 5,700 cfs through 

levee break 0.5 mile upstream,,.determined by contracted-opening method and other data; 

no flow May 8, Sept. 18-25, 1939, Sept. 5, 6, 1949.

Remarks. Records good except those for periods of doubtful or no gage-height record, which 

are fair. Flow regulated by reservoirs and power plants above station. River receives 

inflow from Yuba River basin and there are diversions above station for irrigation.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

TotaJ

Mean

Ac- ft

Oct.

12

11

12

12

*11

11

13 

14

13

12

11

11

10

10

10

11

11

13

13

12

13

11

12

13

52

180

293

178

147

262

187

1,581

51.0

3,140

Nov.

130

103

98

286

592

576

556 

540

*482

306

184

182

207

328

320

472

631

5,930

*6,760

11,700

*17.800

3,550

1,740

1,190

969

*812

762

740

726

722

-

59,394

1,980

117,800

Dec.

710

706

4,100

*7,210

2,450

2,390

5,390 

*6, 350

*4,980

3,040

2,720

2,230

1,690

4,890

7 . 480

3,500

2,390

1,920

1,580

1,370

1,150

1,020

920

848

826

80S

790

780

770

765

790

76,560

2,470

151,900

Jan.

755

740

826

1,030

848

780

745 

715

652

1,090

*2,360

1,540

1,080

1,020

1,420

1,420

1,330

7,260

*4,980

2,510

3,030

15.000

5,040

3,250

2,530

2,110

1,860

1,680

1,520

1,450

1,270

69,841

2,253

138,500

Feb.

1,150

1,090

1,040

1,240

5.100

2,140

1,720 

1,580

1,430

1,360

1,790

2,380

1,860

1,580

1,430

1,300

1,200

1,250

1,150

1,090

*1,080

1,110

1,060

1,030

1,030

1,030

963

925

-

_

-

39,108

1,397

77,570

Mar.

942

1,030

952

1,070

1,960

2,360

5.560 

2,240

2,020

1,730

1,490

1,300

1,180

1,110

1,090

1,090

1,290

1,280

1,250

*1,250

1,190

1,170

1,110

1,050

1,080

1,060

1,080

1,080

1,070

1,110

1,080

42,274

1,364

83,850

Apr.

1.010

980

958

974

986

986

969 

952

908

881

832

853

859

790

697

*d300

d75

d75

d350 735'

720

692

480

607

657

572

488

796

952

620

-

21,754

725

43, 150

Calendar year 1950 : Max 17,800 Min 9.7 Mean 717

May

203

117

110

2.500

1,530

1,100

854 

*735

222

136

317

453

425

394

361

323

311

320

339

212

178

126

194

184

151

175

151

89

136

119

80

12,545

405

24,880

June

97

124

112

121

70

117

83

105

53

39

28

22

24

18

33

34

33

*26

20

22

19

15

13

11

14

9.3

9.3

10

9.3

9.8

-

1,300.7

43.4

2,580

July

11

10

13

13

10

9.5

10 

10

9

a9

a8

a7

a6

a5

a4

*a4

3.2

lil

2.6

2.9

3.6

8.6

9.7

7.0

4.0

4.5

4.5

3.6

3.2

4.5

6.1

208.6

6.73

414

Aug.

6.9

7.6

10

9.5

a9

a9

a9 

a8

a8

a8

a7

a7

a7

a6

a6

a6

a6

a5

a5

*a5

4.5

Ail

5.4

5.8

6.3

4.7

7.2

8.6

8.8

9.0

9.5

218.9

7.06

434

Sept.

10

13

12

10

1*1

*7.6

8.6 

7.8

10.0

13.0

13

10

9

9.8

9. .5

10

11

11

9.5

8.8

20

25

25

28

30

70

59

39

1&

14

-

527.0

17.6

1,050

AC-ft 518,900

Water year 1950-51 : Max 17,800 Mln 2.1 Mean 891 Ac-ft 645^300

j.o,auu crs 117.04 it;-; FBD. a in a.n 

May 4 (10 a.m.) 4,110 ofs (8.74 ft).

* Discharge measurement made on this day.

a Ho gage-height record; discharge Interpolated.

d Doubtful gage-height record; discharge estimated from trend of record during portions of the 

period.
SACRAMENTO RIVER BASIN

Dry Creek near Wheatland, Calif.

Location. Lat 39°01 1 35", long. 121°26'10", on left bank, in Johnson Rancho land grant 

a.ciuu 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 1951.

Qage. Water-stage recorder. Altitude of gage is 66 ft (from topographic map).

Average discharge. 5 years, 56.3 cfs

Extremes. 

Water 

year

1946-47 

1947-48 

1948-49 

1949-50 

1950-51

Maximum

2,890 cfs 

1,990 cfs 

3,320 cfs 

4,150 cfs 

4,960 cfs

Date

Feb. 12 

Jan. 7 

Mar. 11 

Feb. 4 

Nov. 20

Gage height

9.65 

8.37 

10.19 

11.16 

11.64

Minimum

No flow 

do 

do 

do 

do

Date

Many days 

do 

do 

do 

do

Remarks. Records good except those for periods of no gage-height record, which are fair, 

fortion of flow from drainage area may overflow or percolate into Best slough above 

station.

Rating tables, Oct. 1, 1946, to Sept. 30, 1951 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 23 to May 29, 1951)

Oct. 1, 1946, to June 17, 1950 Oct. 28, 1950, t 

Sept. 30, 1951

2.9

3.0

3.1

3.2 

3.4

3.6 

4.0 

4.5 

5.0 

5.5

58

125

237

380

530

6.0 

7.0 

8.0 

9.2

730

1,190

1,750

2,570

7.0 

8.0 

9.0 

9.8

1,190

1,830

2,600

3,250

Note. Same as precedlng table below 

7.0 ft.

Discharge, in cubic feet per second, 1946-51 

1946-47

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

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

0

0

0

Nov.

0

15

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

154

40

18

*88

58

20

12

7.1

4.8

4.3

3.4

409.6

13.6

812

Dec.

2.6

2.2

1.8

47

338

395

137

68

45

31

25

20

16

14

12

12

11

10

9.8

8.4

7.8

7.8

*7.8

7.8

7.8

9.1

8.4

5.9

5.3

4.3

4.3

1,292.1

41.7

2,560

Jan.

4.3

3.4

2.6

z'.o

3.0

2.6

3.0

3.0

3.4

3.4

3.4

3.8

4.8

4.8

4.3

4.8

4.8

4.8

5.3

5.3

5.3

5.9

6.5

7.1

8.4

9.8

10

13

17

TS

178.8

5.77

355

Feb.

17

17

15

14

TT

14

14

14

15

15

16

*958

5 14

175

106

87

72

61

50

45

40

35

30

22

25

23

22

20

_

-

2,450

87.5

4,860

Calendar year 1946: Max - Mln -

Mar.

21

62

447

401

153

91

101

143

184

1.110

285

141

98

72

58

50

41

36

30

28

25

23

25

21

18

17

15 ?2"

214

260

151

4,383

141

8,690

Apr.

86

70

TSO" 258

91

72

58

50

58

48

39

31

26

24

23

22

21

19

18

17

16

15

14

12

12

10

10

9.8

9.8

9.1

1,308.7

43.6

2,600

May

8.4

775

6.5

4.3

3.8

3.0

3.0

2.6

3.8

3.8

3.4

2.6

1.8

.4

.2

 0"0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

55.4

1.79

110

June

0

15

0

0

0

0

0

0

772" 5.0

.6

.2

0

0

. 0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

6.0

0.20

12

July

0

0

0

Aug.

0

O

0

Sept.

0

0

0

Mean - Ac-ft -

Water year 1946-47: Max 1,110 Hln 0 Mean 27.6 Ac-ft 20,000

Peak discharge (base. 2.000 cfa) . Feb. 12 (6 p.m.) 2,890 cfs (9.65 ft). 

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 411 

Discharge, In cubic feet per second, of Dry Creek near Wheatland, Calif., 1946-51 Continued

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

Nov.

0

7J

0

0 

0

0

0

0

0

0

0

.8

~7e 1.8

.2

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0-

3.4

0.11

6.7

Dec.

0

ff

0

0 

0

0

0

0

0

0

0

0

0

0

0

0

0 

7.1

16

il

5.9

2.6

1.8

1.1

.6

.4

.4

.3

0

TJ

0

53.2

1.72

106

Jan.

0

0

0

0 

0

0

0

0

0

4.9

22

61

40

54

76

50

1.800 

§66

255

114

94

352

160

177

86

50

60

552

245

123

81

5,422.9

175

10,760

Feb.

60

44

35

2.550 

1,410

1,310

401

230

168

377

293

170

125

103

87

83

98 

89

76

68

60

54

48

45

40

38

32

29

T

_

-

8,123

290

16,110

Mar.

25

22

20

19 

20

25

14

13

14

15

15

13

11

11

10

i5 9.8

73

129

193

83

66

81

*925

698

314

190

131

98

79

62

3,397.8

110

6,740

Apr.

52

44

35

29 

25

44

67

207

245

1ST

84

67

70

64

45

36

31 

24

20

15

13

12

20

15

11

10

10

8.4

7.1

6.5

-

1,438.0

47.9

2,850

May

7.1

55

103

T5 

29

22

17

12

11

7.1

5.3

4.8

3.0

3.0

3.4

2.6

3.0 

3.4

3.0

2.2

1.8

1.6

1.4

1.6

1.4

4.8

2.2

.8

.6

0

TJ

362.1

11.7

718

June

0

*.2

} ...

I

^ a2.0

f

J

gl.6

al.l

.6

.3

0

0

0

0

0

0

0

0

0

0

0

0

0-

20.4

0.68

40

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1949: Max 2,540 Mln 0 Mean 46.6 Ao-ft 33,740

Water year 1949-50: Max 2,550 IHn o McSan 51.6 Ao-ft 37,330

Peak discharge (base, 2,000 efs). Jan. 17 (10:30 p.m.) 2,490 cfs ( 

* Discharge measurement made on this day.

a No gage-height records discharge estimated from weather records. 

g Computed from one staff gage reading.

1950-51

J.09 ft).

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

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

30

32

27

62

151

4.87

300

Nov.

38

18

8.4

3.0

1.1

.2

0

S

0

0

0

0

0

0

0

0

37

1,730

937

5.170

2,300

445

230

159

126

106

92

83

76

73

-

9,632.7

321

19,110

Dec.

72

67

1,755

862

299

534

1,020

*1,540

723

338

480

403

265

1,610

2.180

521

335

250

220

179

153

135 

119

108

101

91

83

76

73

76

92

14,785

477

29,330

Jan.

70

64

35

210

116

91

81

78

75

535

865

416

232

179

330

374

302

1,350

638

335

919

2.520 

56Z

347

253

205

173

147

137

151

110

11,954

386

23,710

Feb.

98

89

84

298

650

255

177

141

121

116

405

467

207

145

119

101

89

114

79

68

*70

68 

64

52

45

45

58

49

_

-

-

4,254

152

8,440

Mar.

44

44

35

50

255

210

398

1TO

162

114

81

68

62

53

45

41

38

31

28

28

25

22 

20

18

18

17

14

12

11

TZ

12

2,128

68.6

4,220

Apr.

9.8

9.8

9.8

9.1

9.1

3.4

575

6.5

' a9

*12

8.4

8.4

10

9.8

8.4

7.8 

7.8

8.4

12

16

19

28

70

35

-

392.0

13.1

778

May

32

41

46

402 IT5-

45

28

*19

12

17

12

16

17

15

15

9.8

8.4

7.1

5.9

5.3

5.3

5.9 

5.3

5.9

6.5

5.9

3.4

5.3

12

2.2

!_.!.

922.3

29.8

1,830

June

0.6

.3

.2

.8

1.6

1.6

2.2

2.2

2.6

TTZ.

1.8

1.8

1.4

1.6

1.6

1.6

1.4

*1.4

1.6

1.4

1.1

1.1 

.8

.2

0.

0

0

0

0

0

-

33.1

1.07

66

July

0

0

0

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 3,170 Mln 0 Mean 119 Ac-ft 85,960

Water year 1950-51: Max 3,170 Hin 0 Mean 121 Ac-ft 87,780

Peak discharge (base. 2.000 efs). Nov. 18 (4 p.m.) 2,980 cfs (9.47 ft)j Nov. 20 (6:30 p.m.) 4,960 

cfs (11.64 ft)} Dec. 3 (11:30 a.m.) 3,080 cfs (9.60 ft)j Dec. 8 (1:30 p.m.') 2,370 cfs (8.71 ft)j Dec. 

15 (4 a.m.) 3.610 efs (10.20 ft); Jan. 18 (12:30 p.m.) 2,300 cfs (8.63 ft)} Jan. 22 (4:30 a.m.) 4,360 

cfs (11.03 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records.
412 SACRAMENTO RIVER BASIN

Discharge, In cubic feet per second, of Dry Creek near Wheatland, Calif., 1946-51--Continued

1947-48

Day

1

2

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

2B

29

30

31

Total

Mean

Ac-ft

Oct.

0

0

0

0

0

0

0

0

0

0

0

aZ

40

1.30

79

Nov.

> a5

0

0

0

-

135

4.50

268

Dec.

0

0

0

0

0

0

.2

1.1

1.1

.8

.8

1.1

3.0

3.4

3.8

3.4

4.3

5.3

8.4

T^

4.8

4.8

4.3

3.8

3.8

3.8

3.4

3.0

3.0

3.0

3.4

83.1

2.68

165

Jan.

3.0

4T3

76

35

34

32

328

586 "59

49

31

22

18

15

13

11

10

9.8

8.4

9.1

7.1

6.5

5.9

5.3

4.8

4.3

3.8

3.4

3.4

3.4

3.4

1,444.9

46.6

2,870

Feb.

3.4

m

3.4

4.3

5.9

20

46

E2

38

119

48

28

EO

17

15

14

12

12

9.8

9.1

8.4

7.8

7.1

6.5

5.3

4.8

4.8

5.9

12

-

51E.9

17.7

1,020

Mar.

10

8.4

6.5

4.8

3.8

3.4

3 ^4

3.4

4.3

5.9

5.3

4.3

45

311

179

131

188

101

137

101

60

41

81

995

544

179

106

75

61

45

36

3,479.5

112

6,900

Apr.

30

27

50

79

207

175

99

66

141

806

E82

156

98

84

81

83

636

198

112

78

67

31E

151

86

64

70

49

53

108

150

4,598

153

9,120

May

~66 119

53

45

38

30

26

26

29

26

24

20

19

15

15

15

13

T5

50

89

86

40

E9

22

20

19

16

15

16

24

70

1,090

35.2

2,160

June

 21 30

18

17

17

17

*15

12

9.8

9.1

9.1

9.1

8.4

8.4

7.1

6.5

5.3

6.5

6.5

3.8

3.0

1.1

775

2.2

1.6

2.6

3.0

2.2

1.8

1.4

-

258.1

8.60

512

July

0.8

.6

.8

.2

0

0

0

0

.2

.4

.4

1,1

T7T

.3

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

6.1

0.20

12

Aug.

0

0

0

Sept.

0

0

0

0

0

0

0

.1

.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

b

0

0

1.6

TT6-

3.9

0.13

7.7

Calendar year 1947 : Max 1,110 Mln 0 Mean 23.7 Ac-ft 17,140

Water year 1947-48: Max 995 Mln 0 Mean 31.8 Ac-ft E3.110

Peak discharge (base. 2.000 efs). Jan. 7 (12 p.m.) 1,990 cfs (8.37 ft).

* Discharge measurement made on this day.

a Mo gage-height record; discharge estimated on basis of weather records.

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

Oct.

0.6

1.4

2.2 

2.6

T75

.4

0

T.I

1.4

1.1

.6

1.4

1.8

1.6

1.6

1.6

1.6

1.6

1.4

1.4

1.4

1.4

1.1

1.1

1.1

.8

**.2

0

TJ

0

0

34.3

1.11

68

Nov.

0

.3

8.4 

9.8

7TT

3.0

1.6

.6

.3

.2

0

0

.2

.4

.4

.4

.3

.3

2.2

.8

.6

.4

.6

.4

.3

.2

0

0

0

0

-

38.8

1.29

77

Dec.

0

^

.9

.6

5.3

7.1

15

7.1

15

9.1

5.3

3.4

26

143

45

28

62

141

29

IE

7.8

5.3 *4.e

4.3

3.8

5.3

142

~BT 206

23

16

1,034.1

33.4

E,050

Jan.

25

8946" 

19

12

9.8

9.1

8.4

9.1

10

4.3

3.8

3.8

3.8

3.8

3.0

2.6

775

3.8

7.8

10

20

83

44

21

15

13

12

11

9.8

9.1

524.6

16.9

1,040

Feb.

8.4

7.8

773 

11

92

151

254

186

9E

75

429

2TO

92

58

41

32

27

26

25

23

27

26

39

55

66

46

60

45

_

-

2 210

78.9

4,380

Mar.

34

130

2.540 

1,330

828

464

285

200

177

541

*1,780

814

404

271

212

255

188

143

E81

311

181

156

387

268

195

156

125

151

101

81

73

13,062

421

25,910

Apr.

 5361

50 

41

36

31

28

26

E3

El

17

18

19

17

18

20

19

17

17

15

15

15

14

14

18

15

12

T5

15

21

699

E3.3

1,390

Calendar year 1948: Max 995 Mln 0 Mean 34. 2

May

21

21

20 

20

15

11

9.1

9.1

9.8

10

8.4

7.1

7.1

9.1

20

19

18

10

15

44

42

E3

14

8.4

7.1

6.5

4.8

3.8

7.8

6.5

6.5

434.1

14.0

861

June

5.9

1T8

3.8 

2.6

2.2

2.2

2.2

1.8

.3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

25.8

0.86

51

July

0

0

0

Ac-ft 24,800

Aug.

0

0

0

Sept.

0

0

0

Water year 1948-49: Max E.540 Mln o Mean 49.5 Ac-ft 35,830

*?.? * discharge (base. 2,000 efs). Mar. 3 (6:30 p.m.) 3,230 cfs (10.08 ft); Mar. 11 (2:30 a.m.) 

3,320 cfs ( 10.19 ft).

* Discharge measurement made on this day.

** Field estimated made on this day.
SACRAMENTQ RIVER BASIN 413

Feather River at Nicolaus, Calif.

Location. Lat 38°54'00", long. 121°35'05", on left bank at Nicolaus, Sutter County, 0.4 

mile downstream from highway bridge, and 1.6 miles downstream from Bear River.

Records available.--June 1921 to December 1942 (low-water periods only) and April 1943 to 

septemoer J.abi in reports of Geological Survey. 1939-51 in reports of Division of 

Water Resources, Department of Public Works, State of California.

Gage. Water-stage recorder. Datum of gage is Corps of Engineers datum. Prior to Novem5er 1931, on middle fender pier of bridge 0.4 mile upstream at same datum.

Average discharge. 8 years (1943-51), 6,726 cfs.

Extremes. Maximum discharge during year, 145,000 cfs Nov. 21 (gage height, 47.80 ft); 

minimum, 200 cfs Aug. 9 (gage height, 20.10 ft).

1943-51: Maximum discharge, that of Nov. 21, 1950.

1921-51: 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 power plants. Many diversions above station for irrigation. See Remarks for Feather River near Oroville. 

Records of chemical analyses and water temperatures for the water year 1951 are given 

in Water-Supply Paper 1200.

Cooperation.--Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, In cubic feet per second, water year October 195O 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.

1,750

1,520

1,680

1,930

*1,S60

1,640

1,930

1,750

1,560

1,580

1,560

1,460

1,500

1,580

1,490

1,400 

1,430

1,580

*1,460

1,540

1,550

1,750

1,780

1,790

2,180

2,320

4,960

8,050

7,350

8,160

9,710

81,800

2,639

152,200

Nov.

7,640

5,410

4,710

4,430

4,420

3,790

*3,520

3,740

3,790

3,570

5,420

3,610

3,610

3,930

4,140

4,330 

8,620

17,600

54, 200

79,400

129,000

1*116,000

76,900

47,000

31,400

24,600

2O,5OO

17,100

15,700

14,400

-

720,480

24,020

tl,429

Dec.

13,900

13,600

16,500

57,400

79,600

54,300

52,000

69,600

90,600

77,600

53,300

43,100

36,600

34,800

56,400

68,000 

50,800

37,800

32,500

28 , 600

25,000

22,400

19,700

17,300

15,600

14,100

13,300

12,700

12,300

12,000

11,500

t], 143.1

36,870

t2,267

Jan.

10,800

1O,9OO

11,200

*1 1,400

10,700

10,200

9,080

9,480

9,410

12,600

16,800

20,600

14,500

9,170

11,900

*13,300 

13,600

22,200

37,200

32,600

23,300

37,900

55,400

46,900

37,900

32,800

28,300

24,300

21,000

19,200

16,800

641,440

20,690

tl,272

Feb.

14, 700

13,400

12,600

14,500

26,200

38,300

35,400

29,700

27,700

26,700

25,900

31,600

36,300

32,400

28,700

25,900 

23,000

21,200

20,000

18,800

*17,700

16,800

15,900

14, 600

13,200

12,800

12,500

12,000

_

-

618,500

22,090

tl,227

Mar.

11,500

11,200

11,000

10,800

12,000

15,300

*20,400

21.200

16,000

16,500

15,000

13,500

13,000

13,600

14,800

14,600 

14,500

14,000

13, 500

13,500

14,000

14,500

14,400

13,700

13,600

13,800

13,900

*13,800

13,800

13,900

13,700

439.OOO

14,160

870,700

Apr.

13,200

12,700

12,500

12,400

12,700

*13, 200

13,300

13,200

12,600

13,100

14,300

14,800

14,5OO

14,800

14, 400

13,700 

13,200

12,800

12,300

11,900

11,700

11,400

10,300

9,790

9,950

9,500

*8,660

8,440

11,800

10, 700

-

367,840

12,260

729,600

May

9,330

8,720

8,450

11,800

15,900

13,800

13,300

12,500

12,100

*12,400

13,500

15,900

14,000

12,300

10,900

10,500 

10,900

11,500

11,700

11,600

10,700

10,100

10, 200

9,760

9,250

8,950

8,710

8,260

*7,960

7,240

6,100

338,330

10,910

671,100

June

5,380

4,290

4,250

3,950

3,470

3,060

2,800

2,610

2,640

2,440

2,23O

2,140

1,950

1,690

1,520

1,510 

1,430

1,400

1,340

1,550

1,620

1,520

1,450

1,350

*1,260

987

945

994

973

903

-

63,652

2,122

126,300

July

903

924 75"6~

704

680

579

520

504

494

494

474

414

369

434

394

*379 

404

419

464

469

489

489

414

359

324

329

300

291

286

281

2ST

14,621

472

29,000

Aug.

286

252

257

262

252

248

248

229

214 '235'

252

267

252

238

296

296 

*281

267

248

229

224

224

238

329

434

474

469

584

632 *m

602

9,936

321

19,710

Sept.

620

75?

801

834

945

1,240

1,430

1,420

1,310

1,110

1,120

1,340

1,440

1,660

1,750

1,550 

1,480

*1,480

1,620

1,800

1,960

1,940

1,700

1,420

1,520

1,960

2,200

2,UO

2,160

1,89O

-

44,634

1,488

88,530

Calendar year 1950; Max 129,000 Mln 2OO Mean 11,930 Ac-ft 8,636,000

Water year 195O-51: Max 129, OOO Mln 214 Mean 12,28O Ac-ft 8,892,OOO

* Discharge measurement made on this day. 

t Expressed in thousands.

Note. No gage-height record Mar. 9-27; discharge estimated on basis of records for station 

nearby streams.
414 SACRAMENTO RIVER MAIN STEM

Sacramento River at Verona, Calif.

Location.--Lat 38°46'56", long. 121°36 I 15", in SEij sec. 23, T. 11 N., R. 3 E., on left 

Dame 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 1951 (1926-29, low-water periods only) in reports or geological Survey. 1926-51 (1926-29, gage heights only) in reports of Division 

of Water Resources, Department of Public Works, State of California.

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, 

and at site 19.2 miles downstream May 1926 to Sept. 30, 1944.

Average discharge.--22 years (1929^51), 16,700 cfs.

Extremes.--Maximum discharge during year, 64.300 cfs Nov. 22; maximum gage height, 37.06 

TTTTov. 21 (backwater from American River); minimum daily discharge, 6.080 cfs July 4; 

maximum reverse flow, 16,800 cfs Dec. 4 (backwater from American River).

1926-51: Maximum discharge, 79,200 cfs Mar. 1, 1940 (gage height, 41.20 ft); minimum daily, 304 cfs July 23, 24, 1931; maximum reverse flow, that of Dec. 4, 1950.

1934-51: Maximum combined discharge of Sacramento River at Verona and Premont weir, 

about 315,000 cfs Mar. 1, 1940.

Remarks. Records excellent. Reservoirs, many diversions, and considerable return water 

 aTTect flow. When discharge exceeds about 55,000 cfs, flow begins over Fremont weir

(Just upstream) Into Yolo bypass (see p. 444 ). Elevation of crest of Fremont weir,

33.5 ft (datum of Corps of Engineers).

Discharge, in cubic feet per second, water year October 1950 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.

7,580 

7,500

*7,340

7,510

7,430

7,240

7,430

7,690

7,560

7,320

7,400

7,240

7,060

7,140

7,060

6,920

6,810

7,140

7,240

7,340

7,290

7,290

*7,400

7,480

7,980

8,600

10,4OO

15,000

16,500

18,300

21,700

273,890

8,835

543,300

Nov.

24,100 

20,600

17,000

14,700

13,300

11,800

10 , 700

10,300

10,300

 10,100

9,710

10,000

9,860

9,860

10,200

11,000

14,300

25,100

25,600

52,200

52,600

63,200

59,700

56,200

53 , 100

49,300

43,500

37,000

32,000

28,400

-

795,730

26,520

tl,578

Dec.

26,000 

24,400

24,300

e 17, 000

*5 1,600

56 , 900

51,100

52,400

56 , 400

60,800

58,800

57,600

56,900

56,700

54,700

58,800

59,900

58,900

58,000

57,300

56,400

55,600

54,500

53,000

50,900

48,100

45,000

41,600

38,400

35,800

33 , 900

1 1,511. 7

48,760

t2,998

Jan.

31,900 

29,800

28,600

*28,500

27,500

26,400

25,700

24,400

22,600

23,900

27,800

35,000

37,900

37,100

33,700

32,700

33,800

*36,800

48,000

53 , 800

52,800

54 , 400

53,500

59,900

55,100

58,100

56,800

55,300

53,800

52,400

50,300

tl,253 .3

40,430

t2,486

Feb.

47,500 

43,900

40,700

58,500

41,400

51,100

56 , 100

56,400

56,500

56,000

55,700

56 , 400

57,200

57,500

57,100

56,800

56,200

55,8OO

55,400

55,100

54,700

54,200

53,400

52,300

50,500

48,000

45,400

42,600

_

,

-

tl.451.8

51,850

t2,880

Mar.

40,500 

38 , 700

36,900

55,200

34,800

36,200

*38,000

40,500

40,400

39,600

58,400

56,000

53,200

31,400

50,400

29,900

29,800

29,600

29,100

28,400

28,200

28,100

28,000

27,600

27,000

26,200

25,900

*26,000

25,800

25,400

25,000

990,200

31,940

tl,964

Apr.

24,400 

23,400

22,200

21,200

20,800

20,900

20,900

20,700

20,300

20,200

21,200

21,600

21,200

21,200

2O,4OO

19,800

19,500

18,900

18,000

17,000

16,000

15,600

14,900

14,600

14,400

14,200

*13,300

13,000

15,900

18,700

-

564,400

18,810

tl,119

May

18,900 

17,900

16,900

18,500

24,900

26,200

26,206

25,200

*24,000

23,100

22,900

24,700

24,200

22,300

20,100

18,700

18,200

18,100

18,300

18,800

18,300

17,800

17,600

17,100

16,300

15,800

15,600

15,300

14,400

13,700

12,900

602,900

19,450

tl,-196

June

*1 1,500 

10,800

9,790

9,550

8,920

8,530

8,180

8,230

8,500

8,450

8,450

8,530

8,500

8,280

7,910

7,620

7,300

7,200

*7,000

7,100

7,110

7,100

7,200

7,200

7,100

6,800

6,700

6,600

6,400

6,400

-

238,530

7,951

473,100

July

6,400 

6,300

6,160

6,080

6 , 200

6,370

6,490

6,700

6,870

6,810

6,700

6,640

6,940

7,580

8,070

8,300

8,500

8,530

8,650

8,750

9,000

9,400

9,400

9,500

9,500

9,500

9,600

9,600

9,700

9,800

9,800

247,640

7,988

491,200

Aug.

9,800 

9,900

9,7OO

9,200

9,400

9,400

9,500

9,400

9,400

9,420

9,450

9,660

9,640

9,480

9,470

*9,590

9,470

9,210

9,160

9,080

8,860

8,840

8,860

8,910

9,130

9,320

9,450

9,660

9,860

*9,860

9,790

291,870

9,415

578,900

Sept.

9,730 

9,950

9,89O

9,880

10,100

10,600

11,000

10,900

11,100

10,800

10,200

10,400

10,300

10,300

10,200

10, 100

9,700

9,350

9,530

9,250

9,470

9,300

*8,940

8,460

8,350

8,800

9,080

8,990

8,740

8,510

-

291,480

9,716

578,100

Calendar year 195O: Max 63,2OO Min 6,O40 Mean 19,710 Ac-ft 14,270,OOO

Water year 1950-51: Max 63,2OO Min 6,080 Mean 23,320 Ac-ft 16,89O,OOO

* Discharge measurement made on this day.

t Expressed in thousands.

e Upstream flow occurred from 5 to 8:50 a.m. (backwater from American River).
SACRAMENTO RIVER BASIN 41£ 

North Fork American River at North Fork Dam, Calif.

Location. Lat 38°56', long. 121°01 I , in SE£ sec. 30, T. 13 N., R. 9 E., on left bank 

50 ft upstream from dam, 2 miles upstream from Middle Fork, and 4 miles northeast of 

Auburn.

Drainage area.--343 sq ml.

Records available.--October 1941 to September 1951.

Gage.--Water-stage recorder above spillway of North Fork Dam. Datum of gage Is 715.0 ft 

above mean sea level (levels by Corps of Engineers).

Average discharge.--10 years (1941-51), 793 cfs.

Extremes. Maximum discharge during year, 46,600 cfs Nov. 20 (gage height, 9.96 ft), from 

rating curve extended above 22,000 cfs on basis of computed flow over spillway of dam; 

minimum daily, 34 cfs Sept. 28-30.

1941-51: Maximum discharge, that of Nov. 20, 1950; no flow Aug. 27-30, Sept. 2-11, 

1944 (result of regulation).

Remarks.--Records good. Some storage and a few diversions above station.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

31

Total

Mean

Ac-ft

Oct.

37

57

57

40

40

45

46

43

45

40

40

40

40

40

40

*40

45

40

40

40

40

40 

46

60

75

258

897

407

258

825

608

4,505

159

8,550

Nov.

*293

251

300

355

251

200

164

143

155

125

125

115

118

159

182

580

1,180

15,600

15,700

24.000

25,200

*5,860 

5,240

2,180

1,690

1,580

1,160

1,020

885

855

-

99,216

3,507

196,800

Dec.

*875

252

12. 600

ll, 466

4,540

4,400

9,080

11,600

7,510

4,420

5,720

5,460

2,650

5,870

6,050

4,520

5,210

2,900

2,140

1,820

1,590

1,410 

1,280

1,160

1,080

995

915

855

815

805

775

114,967

3,709

228,000

Jan.

706

*688

785

925

795

725

679

652

634

815

1,510

1,470

1,060

895

895

955

1,200

5,400

5,870

2,510

2,320

11.500 

6,570

4,170

5,510

2,740

2,390

2,160

1,920

1,720

1,470

66,859

2,156

132,600

Feb.

*1,410

1,510

1,250

1,700

5.950

2,890

2,500

2,550

2,210

2,080

2,590

2,720

2,210

1,940

1,750

1,560

1,460

1,440

1,280

1,250

1,220

1,150 

1,070

1,050

995

965

965

905

_

_

-

48,070

1,717

95,550

Mar.

*885

855

795

915

1,850

1,890

5.410

2,210

1,990

1,700

1,490

1,590

1,400

1,470

1,490

1,550

1,540

1,590

1,550

1,360

1,470

1,460 

1,410

1,390

1,440

1,430

1,390

*1,540

1,480

1,460

1,250

46,450

1,498

92,090

Apr.

1,160

1,150

1,160

1,160

1,460

1,550

1,590

1,610

1,710

2,020

2.060

1,920

1,900

2,050

1,860

1,850

1,770

1,590

1,400

1,540

1,540

1, 500 

1,500

1,250

1,150

1,080

975

1,400

1,560

1,090

-

44, 515

1,484

88,290

May

*995

925

1,100

2,550

1,850

1,750

1,640

1,550

1,620

1,750

2.540

1,800

1,440

1,500

1,240

1,510

1,490

1,560

1,590

1,500

1,410

1,350 

1,260

1,220

1,150

1,230

1,160

1,120

965

865

745

43,475

1,402

86,250

June

*652 599"

565

548

551

506

489

456

432

424

416

408

400

400

400

592

584

355

558

525

508

286 

272

258

244

250

224

212

200

*188

-

11,458

381

22, 690

July182

176

164

159

159

154

148

145

138

155

133

136

123

119

115

111

107

107

103

99

95

95 

95

91

91

88

88

84

81

81

78

5,676

119

7,290

Aug.

*79

74

71

71

71

68

77

72

70

70

68

68

66

65

68

62

58

56

56

56

*56

*56 

*46

56

56

56

56

56

56

56

*56

1,950

62.9

5,870

Sept.

56

5g

56

55

55

55

55

55

55

55

55

55

55

55

55

55

55

*52

55

55

54

54 

54

54

54

54

47

54

54

54

-

1,575

52.4

5,120

Calendar year 1950 : Max 24,000 Min 26 Mean 1,556 Ac-ft 981,600

Water year 1950-51 : Max 24,000 Min 54 Mean 1,555 Ac-ft 964,900

Peak discharge (base. 4.500 cfs). Nov. 20 (9:30 p.m.) 46.600 cfs (9.96 ft): Dec. 5 (7:50 p.m.)

29,000 cfs (7.92 ft); Dec. 8 (5 p.m.) 15,100 cfs (5.88 ft)j Dee. 14 (l p.m.) 9,860 cfs U.90 ft)j

Jan. 18 (1:50 p.m.) 7,290 cfs (4.55 ft); Jan. 22 (9 a.m.) 15,500 cfs (5.60 ft); Feb. 5 (11:50 a.m.)

5,010 cfs (5.72 ft) .

* Discharge measurement made on this day.
416 SACRAMENTO RIVER BASIN

Rubicon River near Georgetown, Calif

Location. Lat 38°58' , long. 120°29', in SE£ see. 23, T. 13 N., R. 13 E., on left bank

 1"mile downstream from Little South Fork Rubicon River and 20 miles east of Georgetown.

Drainage area. 198 sq mi (by Bureau of Reclamation).

Records available.--November 1909 to June 1914, May 1943 to September 1951. Published as 

"near yuintette" 1909-14.

Gage.--Water-stage recorder. Altitude of gage is 3,500 ft (from topographic map). Nov.

 21, 1909, to June 8, 1914, at nearby site and different datum.

Average discharge . 11 years (1910-13, 1943-51), 554 cfs.

Extremes. Maximum discharge during year, 44,600 cfs Nov. 18 (gage height, 18.10 ft, in 

gage well, 22.8 ft, outside, from floodmarks), from rating curve extended above 4,400 

cfs on basis of slope-area determination of peak flow; minimum, 11 cfs.Oct. 23.

1943-51: Maximum discharge, that of Nov. 18, 1950; minimum, 5.4 cfs Oct. 28, 1944.

Remarks.--Records good except those above 5,000 cfs, which are fair. Flow regulated by 

Eoon Lake beginning in 1884 (usable capacity, 8,000. acre-ft) on Gerle Creek, where most 

of stored water is diverted out of the watershed in Georgetown ditch (see following

1.4 

1.7 

2.1 

2.5 

3.0

Rating tables, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Dec. 2 Dec. 3 to Sept. 3O

13

24

45

75

128

3.5 

4.0 

5.0 

6.0 

8.0

206

308

610

1,080

2,600

10.0

12.0

14.0

16.0

4,740

8,180

14,100

24,400

1.3 

1.6 

2.0 

2.5 

3.0

44

81

135

3.5 

4.0 

5.0 

6.0 

8.0

210

3ZO

640

1,160

2,780

10.0 5,340

12.0 9,000

14.0 14,900

15.0 19,300

Discharge, in cubic feet per second, water year October 1950 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.

15

16

19

17

18

21

22

19

17

16

16

16

14

15

15

14

*16

14

16

15

13

13

14

17

94

581

934

418

385 

1,450 

542

4,792

155

9,500

Nov.

344

453

718

564

374

271

210

185

171

145

123

113

JTS

131

129

323

1,520

*19,900

14,600

20, 600

15,900

2,960

1,700

1,210

*967

798

686

582

529 

750

87,070

2,902

172,700

Dec.

712

558

15,600

6,900

2,550

3,790

7,560

11,900

4,250

2,410

1,920

1,620

1,290

4,010

2,500

1,710

1,270

1,080

926

815

720

644

588

540

499

454

424

400

379 

373 

352

78,944

2,547

156,600

Jan.

335

332

409

418

373

340

322

308

295

295

295

302

292

292

298

288 330"

676

457

427

582

4,030

2,620

1,650

1,240

1,060

960

885

770 

660 

608

22,169

715

43,970

Feb.

560

528

511

1,110

2,000

1,290

1,410

1,490

1,260

1,270

1,470

1,200

968

845

760

692

648

616

560

540

528

502

460

454

439

427

418

591

:

23,347

834

46,310

Mar.

385

362

335

752

365

373

400

397

385

350

348

385

478

608

672

735

716

620

644

740

890

885

825

835

956

905

875

855

1,050 

992

745

19,453

628

38,580

Apr.

688

73T

770

815

1,230

1,310

1,320

1,460

1,710

*2,060

1,900

1,820

1,940

1,980

1,900

1,880

1,740

1,480

1,560

1,540

1,550

1,520

1,540

1,260

1,110

926

860

1,500

1,150 

875

41,109

1,370

81,540

May

830

795

1,OT7J

1,480

1,250

1,580

1,180

1,250

1,510

1,860

2,410

1,550

1,200

1,020

1,060

1,540

1,720

1,850

1,860

1,810

1,780

1,690

1,700

1,640

1,720

1,920

1,950

1,750

1,410 

1,220 

952

46,057

1,485

91,310

June

750

660

656

640

680

*680

652

580

556

572

616

648

644

704

745

760

7TO

604

588

572

487

424

570

365

352

512

510

290

250

218

16,555

545

52,440

July

220

T3S

184

164

145

136

129

125

118

111

106

105

104

97

88

79

74

71

74

71

69

64

57

55

50

47

42

39

36 

34 

*3_2

2,920

94.2

5,790

Aug.

30

a22

690

22.3

1,370

Sept.

a!6

*14

14

14

13

13

13

13

13

13

13

13

13

13

13

13

15

12 

T?

427

14.2

847

Calendar year 1950: Max 20,600 Mln 13 Mean 1,102 Ao-ft 798,000

Water year 1950-51: Max 20,600 Mln 12 Mean 941 Ao-ft 681,000

cfs (16.77 ft); bee. 6 (12 m.) 17,000 cfs (14.50 ft); Dec. 14 (10 a.m.) 6,380 cfs (10.65 ft); Jan. 22 

(9:30 a.m.) 4,720 ofs (9.56 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge Interpolated on basis of a normal recession.
SACRAMENTO RIVER BASIN 417

Georgetown ditch above Pilot Creek, near Georgetown, Calif.

Location.--Lat 38°56', long. 120°29', in SW£ sec. 25, T. 13 N., R. 13 E., on left bank 

0.5 mile northeast of Dncle Toms Cabin and 20 miles east of Georgetown.

Records available.--May 1947 to September 1951.

Gage.--Water-stage recorder and wooden control. Altitude of gage is 5;070 ft (from topo-

 graphic map). Prior to June 10, 1949, staff gage at same site but at different datum.

Extremes.--Maximum daily discharge during year, 26 cfs Oct. 1; no flow for several months.

 1547-51: Maximum daily discharge, 27 cfs Aug. 15-19, 1949, Sept. 30, 1950; no flow 

for several months each year.

Remarks.--Records good except those from May 28 to June 6, which are poor. Ditch receives

 water from Loon Lake (capacity, 8,000 acre-ft) via Gerle Creek, Rubicon River basin, 

and at times from Little 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 ditch near Georgetown, 

p. 418).

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

1Q

11

12

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

2T

18

18

19

19

18

18

18

16

15

14

15

13

8.8

5.0

7.7

4.8

*3.4

*6.2

4.8

5.5

5.0

7.4

8.0

7.2

1.4

.2

0

T.2

.4

325.0

1C. 5

645

Nov.

0

er

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

~S~.6 11

3.4

4.8

0

0

0

*o

0

0

0

0

o

-

25.8

0.86

51

Dec.

0

tr

.3

T

0

0

0

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

o

0

0.7

0.02

1.4

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

o

0

Apr.

(*)

-

O

0

0

May

0er

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

2

55"

5

17

0.5

34

June

55"

5

5

5

5.5 *5.e

6.5

11

12

12

12

12

12

12

13

13

13

13

14

14

15

15

14

14

13

18

18

19

22_

353.8

11.8

702

July

23

23

23

23

24

2523-

24

24

24

22

21

20

20

21

20

20

20

19

2T

20

20

20

20

20

22

22

22

23

*23

22

674

21.7

1,340

Aug.

22

2T

22

22

22

22

22

22

22

23

23

23

23

23

23

23

23

23

23

23

24

2T

24

24

23

23

23

24

24

24

24

712

23.0

1,410

Sept.

24

2T

24

24

24

24

24

24

23

23

24

*24

24

24

23

23

23

23

23

22

23

23

23

23

23

23

23

18

17

IT

-

684

22.8

1,360

Calendar year 1950 : Max 27 Mln 0 Mean 7.77 Ac-ft 5,620

Water year 1950-51: Max 26 Mln 0 Mean 7.65 Ac-ft 5,540

* Discharge measurement made on this day.

Note. No gage-height record Dec. 17 to Apr. 8, Apr. 18 to June 6; discharge estimated 

recorded ranges In stage and Information from ditch tender.
418 SACRAMENTO RIVER BASIN

Georgetown ditch near Georgetown, Calif.

Location. Lat 38°54', long. 120°37', in NEj sec. 10, T. 12 N., R. 12 E., on left bank 

12 miles east of Georgetown.

Records available.--February 1910 to January 1914, March 1947 to September 1951 Pubnsnea as "mot Creek ditch near Quintette," 1910-14.

Gage.--Water-stage recorder. February 1910 to January 1914 at site in vicinity (exact 

site unknown) at different datum.

Extremes.--1947-51: Maximum daily discharge, 32 cfs July 11, 1950; minimum daily, less 

tnan 0.5 cfs during period of ice effect in 1949.

Remarks --Records good except those for period of no gage-height record, which are poor 

DT^ch diverts from Pilot Creek, about 1 mile above station on Pilot Creek, for domest 

and irrigation use in vicinity of Georgetown. (See also Georgetown ditch above Pilot 

Creek, near Georgetown, p. 417).

Discharge, In cubic feet per second, water year October 1950 to September 1951

tic

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

-21

22

23

24

25

26

27

28

29

30

31

Total 

Mean

Ac-ft

Oct.

21 275

19

13

9.2

7.9

7.8

14

19

19

16

14

15

15

14

13

11

13

8.6

9.5

11

10

11

13

16

19

12

1.2

1.1

alj

a5.5

384.8 

12.4

763

Nov.

a5

a5

a4.5

a4.5

a4.5

a4.5

a4

a4

a4

*a4

3.7

3.7

3.8

4.0

3.8

4.9

6.1

~7.8 14

7.8

10

5.7

4.1

*3.4

2.8

2.4

2.2

2.0

1.8

TTff

-

139.8 

4.66

277

Dec.

1.7

1.6

57T

7.8

5.2

4.6

5.4

9.4

7.8

5.6

4.5

3.8

3.3

4.0

3.8

3.4-

3.2

3.0

2.6

2.4

2.2

2.0

1.8

1.8

1.6

1.6

2.0

2.8

2.9

2.8

2.8

112.8 

3.64

224

Jan.

2.7

2.6

2.8

2.8

2.6

2.6

2.4

2.4

2.4

2.2

2.3

2.4

2.4

2.4

2.4

2.4

2.5

3.8

3.5

3.4

3.8

8.6

1573"

7.1

6.1

5.4

4.9

4.4

4.1

3.8

*3.6

113.1 

3.65

224

Feb.

3.4

3.2

3.1

3.2

4.2

3.8

3.8

3.8

3.8

4.1

4.5

4.6

ITT

4.3

4.1

3.8

3.7

3.4

3.2

3.1

3.0

2.9

2.8

2.7

2.6

2.5

2.4

2.4

_

_

-

96.8 

3.46

192

Mar.

2.4

2.3

2.2

2.2

2.2

2.1

7TZ

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.4

2.4

2.5

2.6

2.7

2.9

3.0

3.1

3.1

3.2

3.4

3.4

3.4

3.5

3T5

3.4

81.7 

2.64

162

Apr.

3.4

3.2

3.2

3.1

3.1

3.0

3.0

3.0

*2.9

2.8

2.8

2.7

2.6

2.5

2.4

2.4

2.3

2.2

2.2

2.1

2.1

3.3

5.1

4.9

5.4

7.5

7.2

9.6

sis

-

117.3 

3.91

233

May

8.5

STo" 8.3

13

12

12

12

11

11

11

11

11

10

9.8

11

13

12

13

14

14

14

15

14

15

16

17

18

IS

18

15

17

403.6 

13.0

801

June

18

Iff

18

18

18

18

*18

20

21

22

22

22

22

22

22

22

22

22

23

23

23

24

24

23

24

24

25

24

25

~

653 

21.8

1,300

July

26

25

26

26

26

26

25

26

26

26

26

26

26

26

26

26

26

27

27

27

26

26

27

28

28

28

28

28

*28

28

821 

26.5

1,630

Aug.

28

28

28

28

27

28

28

28

28

28

28

28

27

27

27

27

27

27

27

27

28

27

28

27

27

26

rr

28

28

28

853 

27.5

1,690

Sept.

28

rr

27

26

26

26

26

26

25

25

25

*25

25

25

25

24

24

24

24

24

24

24

25

25

25

25

25

22

20 275

742 

24.7

1,470

Calendar year 1950: Max 32 Min 1.1 Mean 14.1 Ac-ft 10,240

Water year 1950-51: Max 28 Min 1.1 Mean 12.4 Ac-ft 8,970

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for Pilot 

Creek near Georgetown.
SACRAMENTO RIVER BASIN 419

Pilot Creek near Georgetown, Calif.

Location (revised) . Lat 38°54'15", long. 120°36'15", in NW£ sec. 11, T. 12 N., R. 12 E.,

 on left bank y.6 miles upstream from Mutton Canyon and 12 miles east of Georgetown.

Drainage area.--15.1 sq mi (revised).

Records available.--February 1910 to July 1914, January 1946 to September 1951. Published 

as " near Quintette" 1910-14.

Gage.--Water-stage recorder. Altitude of gage is 4,100 ft (from topographic map). Febru-

 ary 1910 to July 1914, staff gage at site 1.9 miles downstream at different datum.

Average discharge. 5 years (1946-51), 25.8 cfs.

Extremes.--Maximum discharge during year, 3,040 cfs Nov. 18 (gage height, 10.84 ft in gage

 well, 13.3 ft outside, from floodmarks), from rating curve extended above 150 cfs on 

basis of slope-area determination of peak flow; minimum, 0.4 cfs Oct. 20-23.

1946-51: Maximum discharge, that of Nov. 18, 1950; minimum, 0.3 cfs Oct. 28 to Nov. 

7, 1950.

Remarks.--Records good except those for periods of doubtful or no gage-height record,

 whTch are poor. Some inflow and diversion above station (see records for Georgetown 

ditch above Pilot Creek near Georgetown, p.417 , and Georgetown ditch near Georgetown, 

preceding page, which diverts about 1 mile above station).

Rating tables, water year 1950-51 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Nov. 16 Nov. 17 to Sept. 30

4.8

4.9

5.1 

5.3

0.2

.5

E.I

4.7

5.6 

6.0 

6.5

4.9 

5.1 

5.3 

5.6 

5.9

0.5

2.1

4.6

11

23

6.2 

6.6 

7.0 

7.5 

8.0

39

70

114

191

283

8.5

9.0

9.5

10.0

10.5

411

603

878

1,290

2,100

Discharge, in cubic feet per second, water year October 1950 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.

3.7

3.9

2.6

8.0

14

17

15

8.0

3.4

2.8

3.6

3.6

3.6

3.9

2.0

.8

.6

.6

. 5

_^

.4

.4

.6

1.6

10

25

54

25

17

40

25

297.0

9.58

589

Nov.

15

12

10

8.7

7.6

6.7

5.8

5.6

5.2

*4.9

4.9

4.7

6.3

8.3

6.9

23

63

"1,300

614

1,020

845

282

175

*124

94

76

64

55

50

53

-

4,950.6

165

9,820

Dec.

48

44

671

516

245

212

276

395" 677

245

191

150

124

216

171

142

123

108

97

86

78

71

65

59

55

56

49

46

43

43

4_1

5,343

172

10,600

Jan.

39

37

44

43

39

37

36

35

34

35

> a40

. alOO

(*)

1,879

60.6

3,730

Feb.

3.60

> a65

_

_

-

2,045

73.0

4,060

Mar.

. a55

1,705

55.0

3,380

Apr.

a70

(*)

76

73

70

67

64

61

59

55

52

50

48

44

41

39

38

36

34

55

46

41

1,744

58.1

3,460

May

41

41

d45

d80 dTO"

d60

d58

d60

d60

d65

d60

54

52

48

44

40

38

36

33

32

29

27

26

25

22

20

18

17

13

13

12_

1,239

40.0

2,460

June

10

11

12

13

T3

13

*12

10

12

12

12

12

10

10

9.7

10

9.7

9.4

9.7

9.4

dlO

dlO

d9

9.2

8.2

8.4

dll

dll

d!2

d!3

-

321.7

10.7

638

July

d!4 dl4"

d!3

d!3

12

12

12

12

12

10

8.4

6.9

6.9

6.7

6.3

5.8

5.4

5.1

5.1

4.8

4.3

4.2

3.8

3.0

2.8

3.0

2.8

2.4

1.9

 1.6

1.5

216.7

6.99

430

Aug.

1.4 r3

1.1

1.1

1.1

.9

.8

.8

.7

.7

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.8

.8

.8

.8

.9

.6

.6

.7

.8

.9

.9

25.8

0.83

51

Sept.

0.9

.9

.8

.8

.8

.8

.8

.7

.7

.7

.7

*.7

.7

.8

.7

> a. 7

-

22.0

0.75

44

Calendar year 1950: Max 1,300 Min o.4 Mean 55 4 Ac-ft 40 100 

Water year 1950-51= Max 1,300 Min 0.4 Mean 54^2 Ac-ft 39*260

Peak discharge (base, ISO cfs).--Hoy. 18 (9 p.m.) 3,040 cfs (10.84 ft); Nov. 20 (9 p.m.) 1,840 cfs 

(10.37 ftj; Dec.3 (8 p.m..) 1,710 cfs (10.30 ft); Dec. 8 (2:30 p.m.) 952 ofs (9.61 ft); Dec. 14 (10 

a.m.) 285 cfs (8.01 ft); Jan. 22 (time unknown) 268 cfs (7.92 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of ranges in stage, 2 discharge measurements, 

and records for stations on nearby streams.

d Doubtful gage-height record; discharge computed on basis of weather records and records for stations on nearby streams.
420 SACRAMENTO RIVER BASIN

Middle Pork American River near Auburn, Calif.

Location (revised). Lat 38°55'05", long. 121°00'20", in SE^ sec. 6, T. 12 N., R. 9 E. , 

on lert DanK at abandoned Mountain Quarry Co.'s 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 1951.

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 and 

at different datum.

Average discharge.--40 years, 1,376 cfs.

Extremes.--Maximum discharge during year, 68,500 cfs Nov. 20 (gage height, 34.7 ft, from 

nooamarks) , from rating curve extended above 32,000 cfs on basis of slope-area determination of peak flow; minimum, 63 cfs Oct. 12.

1911-51: Maximum discharge, that of Nov. 20, 1950; minimum, 20 cfs Sept. 6, 1931, 

Sept. 19, 1934.

Remarks. Records good except those for periods of no gage-height record, which are poor, 

a man storage and diversions above station.

Revisions (water years). W 861: 1928.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

63

B5

65

68

72

88

102

97

89

77

73

71

69

68

69

69

69

68

68

67

67

67

72

94

114

358

 

1,860 9~4"9~

626

1,590

1,560

8,832

285

17,520

Nov.

696

580

742

962

643

a540

451

377

332

304

275

242

234

325

354

448

1,700

28,600

-

-

_

-

_

-

-

_

-

-

_

-

_

6,013

357,800

Dec.

_

5,863

360,500

Jan.

_

3,459

212,700

Feb.

_

2,560

142,200

Mar.

(*)

(*)

_

2,509

154,300

Apr. '

_

2,813

167,400

May

(*)

.

2,952

181,500

June

(*)

.

951

56,600

July

(*)

_

290

17,820

Aug.

_

-

_

-

-

_

-

-

-

-

_

-

-

-

-

(*)

-

-

94

96

96

96

94

92 

92

92

94

96

_

112

6,870

Sept.

96

9T

92

90

88

86

85

85

83

81

78

76

76

74

74

73

73

*73

73

71

70

68

67

67

67

65

CT

68

70

71

-

2,301

76.7

4,560

Calendar year 1950: Max - Mln 60 Mean 2,458 Ac-ft 1,780,000

Water year 1950-51: Max - Mln 63 Mean 2,320 Ac-ft 1,680,000

^ ojiscnarge Discharge measurement measurement madea on thisn day. a 

a No gage-height record; discharge Interpolated.

Note. No gage-height record Nov. 19 to Aug. 21. Monthly discharge N 

>n basis of records for North Pork American River at North Pork Dam.

[ovember to August estimated
SACRAMENTO RIVER BASIN 421

North Fork American River at Rattlesnake Bridge, Calif.

Location.--Lat 38°49', long. 121°06', in SW^ sec. 9, T. 11 N., R. 8 E., on left bank 800 

rr~ffownstream from Rattlesnake Bridge, 3 miles downstream from Pilot Creek, and 6 miles 

south of Auburn.

Drainage area. 999 sq mi.

Records available.--November 1930 to September 1937, December 1938 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 343.65 ft above mean sea level (riverprofile survey).

Average discharge.--18 years (1931-37, 1939-51), 2,365 cfs.

Extremes.--Maximum discharge during year, 115,000 cfs Nov. 21 (gage height, 29.5 ft), from 

rating curve extended above 15,000 cfs on basis of previous rating curves defined below 

70,000 cfs and summation of North and Middle Pork peak discharges; minimum, 40 cfs 

Sept. 18.

1930-51: Maximum discharge, that of Nov. 21, 1950; minimum, 6.5 cfs Aug. 15, 1931.

Remarks.--Records good except those for period of fragmentary or no gage-height record and 

fThose above 40,000 cfs, which are fair. Flow slightly regulated by small reservoirs 

above station; low flow greatly affected by diversions into North Fork ditch and inflow 

from Bear and Yuba River basins through South Canal of Pacific Gas & Electric Co.

Rating tables, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Dec. 5 to Jan. 18)

Oct. 1 to Nov. 20 Nov. 21 to Dec. 3 Dec. 4 to Sept. 30

C.2 

.6 

1.0 

1.5 

2.0 

3.0

126

244

406

690

1,060

2,170

5.0

8.0

12.0

17.0

22.0

5,320

11,700

24,400

46,100

72,300

5.5

7.0

10.0

14.0

19.0

25.0

2,630

4,880

11,200

23,500

46,400

83,100

0.7 

1.0 

1.3 

1.8 

2.5

70

165

290

600

1,190

4.0

7.0

11.0

15.0

19.0

3,100

8,480

17,200

29,300

46,400

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Tota:

Mean

Ac- ft

Oct.

274

318

318

296

324

328

345

368

341

348

348 

359

340

350

359

361

372

384

394

421

421

126

T5T

136

499

805

5,020 

1,770

1,180

2,580

 2,660

20,276

654

40,220

Nov.

,350

,100

,310

,600

,260

1,020

900

804

769

736

696 

664

IST

769

870

1,010

2,880

38,800

67,400

63,200

79,000

*19,000

9,440

6,530

5,080

4,240

3,590 

3,200

2,820

2,750

-

323,452

10,780

641,600

Dec.

*3,080

2,650

30,900

57,500

14,600

12,100

24,300

52 , 500

20,200

11,700

9,600 

8,920

7,250

13,000

13,200

9,820

7,600

6,400

5,700

4,980

4,510

4,070

5,700

5,590

5,140

2,950

2,740 

2,600

2,490

2,420

2,570

510,360

10,010

615,600

Jan.

2,150

*2,090

2,340

2,730

2,42O

2,220

2,090

2,000

1,990

2,560

3,910 

3,790

2,940

2,590

2,660

2,800

3,020

10,400

9,160

6,260

5,770

21.100

14,800

10,100

8,220

7,210

6,530 

6,040

5,470

5,000

4,540

164,900

5,519

527,100

Feb.

*4,200

5,920

5,700

4,420

8,810

7,570

6,510

6,720

6,080

5,720

6,640 

7,020

6,040

5,540

4,900

4,550

4,270

4,080

5,780

5,600

5,590

3,360

5,250

2,880

2,850

2,880

3,060 

2,880

_

-

-

132,580

4,728

262,600

Mar.

*2,600

2,620

2,500

2,880

4,750

4,980

7,400

5,570

5,110

4,490

5,890 

5.7QO

5,840

4,120

4,290

4,560

4,200

5,850

5,710

5,850

4,150

4,250

4,080

5,970

4,150

4,190

4,050 

*5,920

4,050

4,590

5,790

127,440

4,111

252,800

Apr.

5,430

3,560

3,390

3,440

4,100

4,460

4,530

4,640

4,880

5,650

5,950 

5,500

5,480

5,740

5,470

5,590

5,160

4,640

4,220

4,000

4,020

5,860

5,860

3,750

3,440

3,160

2,840 

3,810

4,190

3,540

-

129,880

4,529

257,600

May

5,250

5,040

4,220

6,150

5,250

5,070

4,870

4,640

4,880

6,280

6,820 

5,610

4,640

4,140

3,910

4,050

4,540

4,830

4,870

4,730

4,550

4,420

4,220

4,100

3,950

4,220

4,140 

4,120

3,470

3,100

2,690

138,750

4,475

275,200

June

2,280

2,120

1,950

1,870

*1,870

1,850

1,760

1,620

1,550

1,450

al,490 

al,500

al,480

1,560

1,600

1,640

1,580

1,410

1,270

1,210

1,150

1,050

945

876

860

820

740 

726

719

*656

-

41,562

1,585

82,440

July

'55E 607

551

523

495

460

436

418

394

376

358 

388

576

535

320

305

290

275

255

280

310

240

228

220

208

200

193 

182

172

165

162

10,308

532

20,450

Aug.

*158

162

TS?

145

142

159

135

135

139

129

122 

119

129

113

113

113

110

106

106

106

106

106

105

TIT

116

115

116 

126

129

122

*126

5,849

124

7,650

Sept.

142

165

190

142

119

142

196

97

96

96

88 

82

79

79

82

85

88

76 SB"

82

79

79

96

130

223

167

179 

132

158

140

-

5,597

120

7,150

Calendar year 1950: Max 79,000 Mln 92 Mean 4,114 Ac-ft 2,978,000

Water year 1950-51: Max 79,000 Min 76 Mean 3,854 Ac-ft 2,790,000

Peak discharge (base, 12,000 cfs) . Nov. 21 (1 a.m.) 115,000 cfs (29.5 ft); Dec. 5 (10 p.m.) 83,400 

cfs (25.05 ftj; Dec. 8 (4:30 p.m.) 43,000 cfs (18.52 ft): Dec. 14 (4 p.m.) 21,100 cfs (12.41 ft); 

Jan. 18 (4 p.m.) 15,100 cfs (10.11 ft); Jan. 22 (11 a.m.) 25,500 cfs (13.85 ft).

* Discharge measurement made on this day.

a Fragmentary or no gage-height record; discharge estimated on basis of recorded range In stage or 

from partly estimated gage heights.

256498 O - 53 - 28
422 SACRAMENTO RIVER BASIN

Echo Lake conduit near Vade, Calif.

Location. Lat 38°50', long. 120°02', in NW£ sec. 6, T. 11 M., R. 18 E., on right bank 

u.5 mile downstream from intake and 2 miles northeast of Vade post office.

Records available.--August 1923 to November 1951. Prior to October 1943, published as 

Jtscno Lajce riume near Vade ."

Gage. Water-stage recorder. Altitude of gage is 7,500 ft (from topographic map). Prior 

Fo July 16, 1929, staff gage at site 0.4 mile upstream at different datum.

Extremes.--Maximum daily discharge during season, 26 ,cf s Sept. 10, 11, 13; no flow during 

most of year.

1923-51: Maximum daily discharge, 27 cfs Sept. 13-15, 19, 1938, Sept. 9-12, 1947; 

no flow during most of each year.

Remarks.--Records good. Wo flow except during periods for which discharge is published, 

(jonauit diverts from Echo Lake in Truckee River basin into basin of South Pork American River for power and irrigation.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamed in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, September to November 1951

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

Total

Mean

Ac- ft

Sept.

00"

0

15

25

25

25

24

24

26.

26

*25

26

25

25

24

24

24

23

23

22

21

19

17

15

14

13

11

7.9

1.3

-

550.2

18.3

1,090

Oct.

0.3

.2

.2

4.1

6.7

5.5

4.1

4.4

4.4

1.8

2.0

5.5

9.4 6TB"

4.2

2.9

5.8

3.7

2.9

2.0

.7

0

**0

0

O

O

0

0

0

0

0

77.4

2.50

154

Nov.

0

O

0

o

0

o

0

o

0

0

.2

.4

TT

.4

.2

.2

.1

0

o

0

0

0

0

o

0

0

o

0

0

0

-

1.6

O.O5

3.2

Calendar year : Max Min Mean Ao-ft

Water year : Max Min Mean Ao-ft

Discharge measurement made on this day 

" Field estimate made on this day.
SACRAMENTO RIVER BASIN

Medley Lakes Outlet near Vade, Calif.

Location. Lat 38°51', long. 120°08', in Nw£ sec. 32, T. 12 N., R. 17 E., on left bank 

rmTTe downstream from main dam at Medley Lakes and 5 miles northwest of Vade post 

office.

Drainage area. 4.2 sq mi, approximately.

Records available.--September 1922 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 8,100 ft (from topographic map).

Average discharge. 29 years, 17.4 cfs.

Extremes.--Maximum discharge during year, 388 cfs Dec. 8 (gage height, 4.80 ft), from 

 raTTng curve extended above 130 cfs by logarithmic plotting; minimum not determined. 

1922-51: Maximum discharge, that of Dec. 8, 1950; no flow at times in some years.

Remarks.--Records good except those below 20 cfs and those for periods of no gage-height 

record, which are poor. Contents in Medley Lakes, above station, 200 acre-ft Sept. 30, 

1950, and 190 acre-ft Sept. 30, 1951.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Revisions. W 1151: Drainage area.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In oublo feet per second)

0.5 

.6 

.7 

.9

1.8 

2.8 

4.3

1.2 

1.6 

2.0 

2.5

19

40

67

100

3.0 158

4.0 272

4.5 341

Discharge, in cubic feet per second, water year October 1950 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.

3.9

3.9

3.8

3.6

3.8

4.1

3.9

3.8

3.8

3.8

3.8

3.9

3.9

3.8

3.6

B3.5

3.5

3.5

3.5

3.5

3.5

4.1

5.9

6.5

12

8.6

7.3

8.6

8.3

146.7

4.73

291

Nov.

6.8

8.0

9.4

10

8.3

7.3

6.5

6.1

5.7

5.3

5.1

4.9

4.7

5.5

6.1

5.3

7.8

11

112

45

112 ^78

49 

29

24

19

15

16

46

53

-

721.8

24.1

1,430

Dec.

52

51

101

151

74

89

225

297

137

59

44

41

41

42

41

39 

39

38

38

37

36

36

36 

36

35

34

34

34

34

34

34

2,019

65.1

4,000

Jan.

32

31

31

> 30

934

30.1

1,850

Feb.

25

.

-

-

700

25

1,390

Mar.

15

> 3

273

8.81

541

Apr.

2

3.5

3.5

3.8

4.7 

4.3

3.6

3.6

5.1

5.1

5.1

5.1 

4.7

4.5

3.3

3.9

6*3

4.3

3.0

101.4

3.38

201

May

2.8

2.6

2.6

3.0

2.9

2.9

2.7

3.2

4.9

6.8

6.5

3.8

2.8

2.5

3.0

5.7 

8.3

9.1

8.6

8.8

9.7

11

13 

12

12

14

ISIS

13

10

7.8

230.0

7.42

456

June

11

2?

24

25

26

26

25

20

27

33

45

53

70

79

*89

105 

107

94

98

111

89

72

60 

58

56

45

48

48

42

35

1,648

54.9

3,270

July

36

36

35

30

27

22

"2% 19

23

25

26

28

31

33

31

38 

51

55

66

65

64

63

63

*62

62

61

61

61

61

61

60

1,378

44.5

2,730

Aug.

60

60

59

59

59

58

57

56

56

55

55

54

54

53

52

51 

51

51

51

51

50

51

49 

49

48

48

46

46

45

44

43

1,621

52.3

3,220

Sept.

42

42

41

39

30

6.1

3.6

3.2

3.2

3.0

3.0

3.0

3.0

3.0

3.0

3.0 

3.0

3.0

3.0

3.0

3.0

2.9

H2.8

2.9

3.0

3.0

2.9

3.0

272.2

9.07

540

Calendar year 1950: Max 297 Min - Mean 28.9 Ac-ft 20,890

Water year 1950-51 : Max 297 Mln - Mean 27.5 Ac-ft 19,920

* Discharge measurement made on this day.

Note.. No gage-height record Nov. 25-28, Jan. 4 to Apr. 12; discharge estimated on basis of recorded range in stage, change of storage in Medley Lakes, and weather records.
424 SACRAMENTO RIVER BASIN

Silver lake Outlet near Kirkwood, Calif.

Location.--Lat 38°40', long. 120°08', in SWij sec. 32, T. 10 N., R. 17 E., on right bank 

J.,uuu ft downstream from Silver Lake Dam and 3 miles southwest of Kirkwood.

Drainage area. 14.9 sq mi.

Records available. September 1922 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 7,200 ft (from topographic map).

Average discharge. 29 years, 32.7 cfs.

Extremes.--Maximum discharge during year, 676 cfs Nov. 21 (gage height, 6.03 ft), from

rating curve extended above 200 cfs by logarithmic plotting; minimum daily discharge, 0.2 

cfs on several days in February and March, but may have been less during period of no 

gage-height record.

1922-51: Maximum discharge, that of Nov. 21, 1950; no flow for many days in February and March 1948.

Remarks. Records good. Contents in Silver Lake were about 3,160 acre-ft Sept. 30, 1950, 

aWabout 2,420 acre-ft Sept. 30, 1951. In addition to water released through dam and 

over spillway some escapes from Silver Lake through porous rock formation.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained in connection with a Federal Power Commission project.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

0.5 1.2

.6 1.0

.7 2.5

.8 5.0

0.9 

1.1 

1.5 

2.0

3.0 196

5.0 490

6.0 670

Discharge, in cubic feet per second, water year October 1950 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.

66 

65

62

60

59

57

55

51

48

48

47

45

43

39

37

35

33

32

30

28

27

25

23

22

21

22

24

23

22

24

25

1,198

38.6

2,380

Nov.

25 

25

26

26

26

27

26

25

22

21

21

20

20

19

19

16rr

57

423

527

606

406

282

182

123

93

73

60

51

47

-

3,311

110

6,570

Dec.

45 

45

186

320

223

180

317

381

327

232

157

116

92

97

96

80

68

57

51

47

47

46

46

46

45

45

44

44

43

42

11

3,606

116

7,150

Jan.

39 

39

39

38

38

37

37

36

36

35

35

35

35

34

32

32

31

31

31

31

30

30

30

30

30

15

.4

.3

.3

.3

.3

867.6

28.0

1,720

Feb.

0.3 

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

_

-

6.9

0.25

14

Mar.

0 2 

2

2

2

2

}'

}'

}'

7

7

7

7

7

7

7

8

9

9

9

14.4

0.46

29

Apr.

0.9

no

1.0

1.0

1.2

1.4

1.6

2.1

2.3

2.7

12

38

51

73

98

110

115

114

112

108

107

107

57

32

40

43

21

17

26

28

-

1,324.2

44.1

2,630

May

28 

27

27

31

31

32

48

86

87

101

123

118

104

91

67

2.9

474

9.7

117

173

206

159

147

196

202

206

206

194

137

92

72

3,125.0

101

6,200

June

51 

32

35

43

64

70

66

62

47

33

39

48

*64

81

89

87

82

55

27

23

24

21

12

9.4

7.7

3.6

2.9

2.7

2.5

2.5

-

1,186.3

39.5

2,350

July

e2.3

2.1

2TT

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

2.1

2.1

2.1

2.1

2.1

*2.1

2.1

2.1

2.1

2.1

2.1

66.1

2.13

131

Aug.

2a 

2.1

2.0

2.0

2.0

2.0

2.0

2.0

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.6

1.6

1.5

1.4

1.4

1.4

55.7

1.80

110

Sept.

fc*

1.4

11

67

76

91

99

102

106

105

*105

91

69

68

65

64

63

62

60

58

54

50

49

48

47

46

44

43

41

-

L,788.2

59.6

3,550

Calendar year 1950: Max 606 Min - Mean 55.7 Ac-ft 40,310

Water year 1950-51: Max 606 Min - Mean 45.3 Ac-ft 32,830

Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 435

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 

51)u i"t 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 1951 (October 1934 to September 1951, 

except way ana June 1945, include flow over Twin Lakes spillway).

Gage.--Water-stage recorder and concrete control for the outlet; staff gage with onceTally readings for the spillway. Altitude of gage is 7,900 ft (from topographic map).

Average discharge. 28 years (1922-44, 1945-51), 34.1 cfs (including flow over Twin Lakes 

spillway).

Extremes. 1922-51: Maximum combined daily discharge for outlet and spillway, 405 cfs 

 Dec~7~8, 1950; minimum daily, 0.1 cfs Mar. 25-31, 1944.

Remarks.--Records good except those for days of no gage-height record, which are fair. No 

inversion. Flow regulated by Twin Lakes, contents of which was 16,800 acre-ft Sept. 30, 

1950, and 14,400 acre-ft Sept. 30, 1951. Flow over Twin Lakes spillway occurred Nov. 

21 to Jan. 7 and April 11 to July 31, and is included in table below.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

In connection with a Federal Power Commission project.

Discharge, In cubic feet per second, water year October 1950 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

Tota]

Mean

Ac- ft;

Oct.

32

37

40

39

34

33

40

20

100

TT

30

46

48

49

62

74

74

69

59

62

64

66

66

67

57

40

25

2.4

2.2

275

3.0

1,364.4

44.0

2,710

Nov.

3.0

3.0

3.0

2.4

274

2.8

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.0

9.4

5.6

50

8336

8296

157

63

a73

102

a!82

72

6.8

24

-

1,426.4

47.5

2,830

Dec.

42

55

a366

a264

178

199

a254

3405

3TS

185

143

100

73

133

73

54

43

38

33

29

28

26

25

23

23

21

20

19

15

60

75

3,353

108

6,650

Jan.

69

S5

63

60

57

53

51

50

50

22

8.1

375

18

25

25

25

25

25

25

25

25

26

26

26

26

25

25

25

25

14

10

1,002.6

32.3

1,990

Feb.

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

_

_

-

308

11.0

611

Mar.

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

341

11.0

676

Apr.

11

TT

11

11

11

11

11

11

11

11

16

29

84

127

134

139

IS5

106

86

78

77

77

77

77

71

65

57

56

58

57

1,720

57.3

3,410

May

56

55

48

44

44

44

43

47

44

44

75

99

99

72

57

70

100

107

115

145

180

188

219

219

244

295

353 3"3~5

260

197

140

4,037

130

8,010

June

106

92

96

111

119

126

128

115

119

122

131

144

*137

*144

132

153

168

T31

109

107

120

104

96

95

56

44

ST

58

64

62

-

3,243

108

6,430

July

60 55

47

37

28

17

aTS

a!8

23

23

23

23

25

a21

a21

19

19

18

20

20

320

23

31

39

*38

39

40

45

45

45

46

949

30.6

1,880

Aug.

50

49

50

54

54

55

59

60

60

61

64

64

65

67

67

67

69

73

73

73

72

72

72

70

70

70

73

79

79

83

B5

2,057

66.4

4,080

Sept.

83

81

81

59

3.0

3.0

3.0

3.0

3.0

3.0

3.0

*3.2

23

43

45

47

49

49

50

54

36

13

21

42

72

75

75

78

84 ffl

1,268.2

42.3

2,520

Calendar year 1950: Max 405 Mln £.2 Mean 45.5 Ac-ft 32,980

Water year 1950-51: Max 405 Mln 2.2 Mean 57.7 Ac-ft 41,800

* Discharge measurement made on this day.

a No gage-height record at outlet or spillway; discharge estimated on basis of westher records and 

records of dam operation.
426 SACRAMENTO RIVER BASIN

El Dorado Canal near Kyburz, Calif.

Location. Lat 38°46', long. 120°19', in SE£ sec. 29, T. 11 N., R. IS E., on left bank 

iuu ft downstream from intake and 2 miles west of Kyburz.

Records available. October 1922 to September 1951. 

Average discharge. 29 years, 104 cfs.

Gage. Water-stage recorder. Altitude of gage is 4,100 ft (from topographic map). Prior 

to July 18, 1924, staff gage at site half a mile downstream, at different datum.

Extremes. Maximum daily discharge during year, 207 cfs Feb. 5, 8; no flow Oct. 17 to 

 Nov. 10, Nov. 14, 21-26.

1922-51: Maximum daily discharge, that of Feb. 5,8, 1951; no flow at times.

Remarks. Records good except those for Nov. 16-20, which are fair. Canal diverts from 

lert bank of South Fork American River just below Silver Fork of South Fork; water used 

for power and irrigation. Flow in the canal for period Jan. 11 to Feb. 22 was unusually 

high due to repair work on head dam. Much of this excess water was spilled and remeasured by station on South Fork American River near Kyburz; average spill remeasured for 

period was 25 cfs per day.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

e

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.

118

127

133

T33

125

118

116

116

79

80

90

108

115

114

112

44

0

S

0

0

0

0

0

0

0

0

0

0

0

0

0

1,728

55.7

3,430

Nov.

0

0

O

0

0

0

0

o

0

0

32

53

14

0

5.6

e!2

e!2

elO

c30

c20

0

O

0

0

0

0

20

81

114

116

-

520.6

17.4

1,030

Dec.

116

116

122

96

82

85

94

98

94

96

94

94

94

98

94

92

91

108

121

121

122

122

122

122

122

132

136

139

141

T4T

141

3,446

111

6,840

Jan.

141

T47

151

150

150

151

150

153

155

153

162

188

178

177

180

177

180

185

*184

184

181

195

TS9

168

168

168

168

167

185

193

193

5,251

169

10,420

Feb.

191

188

185

193

207

204

205

207

202

193

179

175

174

175

173

173

172

168

168

168

168

158

131

152

152

152

152

152

-

_

-

4,937

176

9,790

Mar.

153

153

155

rSS

152

152

152

152

152

152

151

152

*152

150

150

147

145

145

145

145

*145

150

153

153

153

153

153

153

151

T46- 122

4,633

149

9,190

Apr.

145

T49

151

151

152

153

153

154

155

156

156

158

158

159

160

160

159

109

159

159

159

159

159

159

160

159

159

158

155

154

4,687

156

9,300

May

154

*153

154

150

149

149

149

151

152

154

155

152

151

150

150

153

155

155

158

T5S

158

154

154

154

154

155

155

154

153

152

154

4,749

153

9,420

June

158

T58~ 157

158

158

158

158

157

157

157

158

158

158

*162

160

159

159

159

162

168

167

167

167

165

167

167

167

168

167

167

4,848

162

9,620

July

167

T8T

167

167

167

165

152

148

149

152

154

150

148

145

137

133

T43

145

155

158

153

146

149

155

156

154

152

154

154

152

151

4,745

153

i,410

Aug.

152

151

151

152

152

152

154

154

153

152

153

152

152

154

153

152

151

154

154

154

159

159

168

T55

152

149

146

T45

149

152

153

4,746

153

9,410

Sept.

151

148

146

144

156

142

138

148

146

151

150

149 *151

143

151

151

151

151

151

149

152

116

101

TOS

139

149

149

147

152

152

4,332

144

8,590

Calendar year 1950: Max 169 Mln o Mean 124 Ac-ft 89,55O

Water year 1950-51 : Max 20? Mln o Mean 133 Ao-ft 96,450

* Discharge measurement made on this day.

c Backwater from slides.

e Stage-discharge relation Indefinite; discharge estimated on basis of canal head gate operations.
SACRAMENTO RIVER BASIN 427

South Fork American River near Kyburz, Calif.

Location. Lat 38°46' , long. 120°19' , in S? sec. 29, T. 11 N., R. 15 E., on right bank be-

 side Lincoln highway, 0.7 mile downstream from Silver Fork of South Fork and 2 miles 

west of Kyburz.

Drainage area. 196 sq mi.

Records available. August to December 1907, October 1922 to September 1951.

Gage. Water-stage recorder. Altitude of gage is about 4,030 ft (from topographic map).

Average discharge . 29 years (1922-51), 383 cfs, combined flow of South Fork American River

 near Kyburz and El Dorado Canal.

Extremes. Maximum discharge during year, 14,500 cfs Nov. 21 (gage height, 9.40 ft); mini1922-51: Maximum discharge, that of Nov. 21, 1950, from rating curve extended above 

6,500 cfs on basis of contracted-opening computation; minimum, 0.3 cfs Nov. 9-11, 1929.

Remarks. Records good except those below 50 cfs, which are fair. Flow at low and medium

 sTages greatly regulated by four reservoirs since beginning of record (total usable capacity now 35,500 acre-ft). Diversions above station. (See records for El Dorado Canal, 

which diverts 0.5 mile above station.)

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamea in connection with a Federal Power Commission project

Rating tables, water year 1950-51 (gage height, 

and discharge, in cubic feet per second) 

(Shifting-control method used July 5-19)

Oct. 1 to Nov. 20

1.3

1.4

1.5

1.6

1.8

2.0

3.6

5.7

9.0

14

28

47

2.6

2.9

3.2

3.6

4.0

4.5

130

192

272

420

628

975

5.5

6.0

7.0

8.0

8.2

1,980

2,710

4,900

8,100

8.900

0.8

.9

1.0

1.2

1.4

No

5.8

8.0

11

22

36

in feet

iv. 21 to Sept.

1.7

2.0

2.5

3.0

3.5

67

111

224

385

625

30

4.0

5.0

6.0

7.0

8.0

930

1,790

3,100

5,080

8.100

5.0 1,420 

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

8.0

8.

7.

7.

8.

8.

8 .

7. 

7 ,

8.

8.

7.

7.

6.

4.

95

138

134

118

116

115

115

118

128

153

177

262

141

128

331

T55

2,577.6

83.1

5,110

Nov.

151

188

263

216

164

134

118

111 

107

91

51

18

SI

89

75

93

217

4,360

5,040

8,620

8,100

3,060

1,790

*1,230

1,010

*860

698

540

456

592

-

38,503

1,283

76,370

Dec.

527

471

6,340

3,860

1,910

2,780

*5,060

*6,460 

3,140

2,000

1,550

1,300

1,110

2 ,.120

1,320

1,080

944

832

752

669

614

560

535

500

510

417

381

361

357

33T

357

49,198

1,587

97,580

Jan.

357

338

377

342

317

301

289

271 

256

253

229

219

216

224

219

'50T 206

234

*216

229

272

1,160

937

704

608

545

495

456

413

357

338

11,584

374

22,980

Feb.

292

274

268

361

592

480

570

614 

555

550

592

520

448

409

373

345

324

307

280

268

265

245

229

214

208

198

191

177

_

_

-

10,149

362

20,130

Mar.

177

166

164

175

166

164

166

175 

159

144

144

159

»206

247

277

295.

338

324

342

385

430

409

393

417

443

413

401

401

490

T70

365

9,005

290

17,860

Apr.

345

353

357

389

505

555

581

636

747

878

898

944

1,050

1,080

1,080

1,100

1,060

958

924

917

917

898

839

746

716

614

586

764

647

555

22,639

755

44,900

Calendar year 1950 : Max 8,620 Mln 4.4 Mean 594

May

535

335

*620

752

704

728

692

800 

972

1,140

1,280

1,020

878

782

782

839

1,000

1,080

,200

,290

,370

,320

,320

,360

,440

1,530

1,600

1 , 490

1,250

1,020

820

32,149

1,037

63,770

AcJune

669

576

576

581

608

603

570

530 

480

500

540

560

614

680

704

752

74t5

625

530

485

430

365

301

283

247

186

164

170

144

115

14,328

478

28,420

July

~3Z 108

76

48

32

17

9.9

9.6 

8.7

8.4

9.6

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

* .3

.7

.3

.3

.3

.6

.6

.6

.1

566.3

18.3

1,120

Aug.

7.1

6.8

6.6

7.1

7.3

7.1

7.1

6.8 

6.4

6.0

6.2

6.2

6.2

6.4

6.6

6.0

575

6.6

6.6

6.6

7.3

7.1

7.6

6.4

6.0

6.0

6.2

7.6

9.6

9.9

13.

216.4

6.98

429

Sept.

11

11

10

9.9

12

9.0

9.3

11 

9.9

11

11

12

*11

7.0

S7T

8.7

8.7

9.0

9.0

9.0

9.0

8.7

8.7

8.7

9.0

9.9

9.3

9.0

9.6

8.1

288.2

9.61

572

ft 429,700

Water year 1950-51 : Max 8,620 Mln 4.6 Mean 524 Ac-ft 379,200

Peak discharge (base, 2,000 efa).--Nov. 21 (2 a.m.) 14,500 cfs (9.40 ft); Dec. 3 (6 p.m.) 1 

cfs 18-65 ft); Dec. 8 (8 a.m.; 8,620 cfs (8.13 ft); Dec. 14 (11:30 a.m.) 2,730 cfs (5.74 ft). 

* Discharge measurement made on this day

.) 10,900
SACRAMENTO RIVER BASIN

Alder Creek near Whitehall, Calif.

Location. Lat 38°45', long. 120°22', in Sw£ sec. 36, T. 11 H., R. 14 E., on right bank 

U.B mile upstream from mouth and 2 miles southeast of Whitehall.

Drainage area. 22.8 sq mi.

Records available.--October 1922 to September 1951 (include diversions by pipe line).

Gage. Water-stage recorder. Altitude of gage is 4,000 ft (from topographic map). Prior 

fo July 23, 1924, staff gage at same site and datum.

Average discharge. 29 years, 35.3 cfs.

Extremes. Maximum discharge during year, 2,020 cfs Nov. 20 (gage height, 5.56 ft); minimum daily, 0.5 cfs Sept. 7-30.

1922-51: Maximum discharge, about 3,700 cfs (revised) Mar. 25, 1928 (gage height, 

7.1 ft, from floodmarks), from rating curve extended above 500 cfs by logarithmic 

plotting; no flow at times during several years.

Extremes do not include flow in feeder pipe line.

Revisions. The maximum discharge for the water year 1928 has been revised to 3,700 

cfs war. 25, 1928 (gage height, 7.1 ft), superseding those figures published in WaterSupply Papers 671 and 861.

Remarks.--Records good except those for periods of no gage-height record, which are poor. 

Kecords (except extremes) include computed flow in feeder pipe line that diverted just 

above station into El Dorado Canal Oct. 2 to June 14.

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtamed in connection with a Federal Power Commission project.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

1.3

2.4 

5.7 2.5 187

3.0 

3.5 

4.0 

4.5

340

545

815

1,150

Discharge, in cubic feet per second, water year October 1950 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.

1.0

T7T

1. 

2.

8.9

25

13

10

40

25

150.4

4.85

298

Nov.

13

9.4

8.2

6.3

5.2

3.9

3.4

3.2

3.1

3.1

3.0

370

3.2

3.9

3.3

8.9

41

953

819

1,080

876

404

257

181

131

*102

86

78

68

74

-

5,234.1

174

10,380

Dec.

67

61

898 BSB"

396

385

*526

736

452

326

249

200

164

310

256

207

174

144

126

105

90

80

70

60

55

50

50

45

45

40

TO

7,065

228

14,010

Jan.

36

30

38

224

T5T

150

133

125

118

114

106

100

96

2,046

66.0

4,060

Feb.

94

93

89

94

196

162

164

166

156

156

171

161

146

133

122

110

95

85

79

70

60

60

60

55

55

53

50

BTT

_

_

-

2,985

107

5,920

Mar.

45

45

40

40

46

45

40

1:54

61

67

68

73

*78

93

95

97

100

102

102

102

102

108

TUS

98

2,068

66.7

4,100

Apr.

93

89

89

89

95

100

102

102

108

120

124

126

129

129

124

120

112

106

100

95

91

84

74

67

65

61

58

77

67

60

-

2,856

95.2

5,660

May

60

*60

73

108

108

129

126

126

133

144

173

T3S

131

114

104

97

95

95

93

88

71

61

57

52

48

44

40

32

30

28

26

2,692

86.8

5,340

June

24

TZ

21

21

21

20

18

17

16

15

15

14

13

12

11

*10

10

9.5

9.5

9.5

9.5

9.0

8.5

8.5

7.5

7.5

7.5

7.0

 5-75" 6.5

-

386.5

12.9

767

July

6.1

577

5.7

5.7

5.3

5.3

4.9

4.9

4.5

4.5

4.1

4.1

4.1

3.8

3.5

3.5

3.5

3.2

2.9

2.6

2.6

2.4

-.4

2.4

2.2

2.0

2.0

2.0

1.8

rrs

1.8

111.3

3.59

221

Aug.

176- 1.6

1.4

1.4

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.0

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.6 75"

.6

.6

.6

.6

.6

.6

28.0

0.90

56

Sept.

0.6 ~7S

.6

.6

.6

.6

.5

75

.5

.5

.5

.5

*.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

-

15.6

0.52

31

Calendar year 1950 : Max 1,080 Min 0.6 Mean 85.0 Ac-ft 61,510

Water later year year 1950-51 1950-51: : Max Max 1,080 1,080 Min Min 0.5 0.5 Mean Mean 70.2 70.2 Ac-ft Ac-ft 50,840 50,840

Peak discharge (base, 120 cfs). Nov. 20 (5 p.m.) 2,020 cfs (5.56 ft); Dec. 5 (6 p.m.) 1,810 cfs 

>.3Z ft); Dec. B (6 a.m.) 961 cfs (4.23 ft); Dec. 14 (11 a.m.) 439 cfs (3.,26 ft); Jan. 22 (10 a.m.) 

171 cfs (2.79 ft); Feb. 5 (6 a.m.) 253 cfs (2.73 ft); Apr. 13 (8 a.m.) 130 cfs (2.27 ft); May 11 

2 p.m.) 193 cfs (2.52 ft). 

* Discharge measurement made on this day.

Note. No gage-height record on creek, Oct. 3-24, Nov. 10-12, Dec. 21 to Jan. 21, Feb. 16 to Mar. 

13, May 27 to June 15; discharge estimated on basis of occasional staff-gage readings and records fc 

nearby streams.
SACRAMENTO RIVER BASIN 429

Silver Creek at Union Valley, Calif.

Location. Lat 38°52', long. 120°26', in SEv sec. 20, T. 12 N., R. 14 E. , on right bank

1 mile downstream from confluence of North and Middle Porks, near lower end of Union

Valley, and 6.5 miles north of Riverton. 

Drainage area. 82.7 sq mi.

KecorcTs avairable . October 1924 to September 1951.

uage.--water-stage recorder. Altitude of gage is 4,530 ft (from topographic map). 

Average discharge.--26 years (1924-27, 1928-51), 206 cfs. 

Extremes.--Maximum discharge during year, 12,100 cfs Nov. 20 (gage height, 16.55 ft),

from rating curve extended above 2,200 cfs on basis of slope-area determination of

peak flow; minimum, 5.1 cfs Sept. 22-27.

1924-51: Maximum discharge, that of Nov. 20, 1950; minimum, 1.9 cfs Aug. 27, 28,

1931.

Revisions.--The figures of maximum discharge for some water years have been revised,

as shown in the following table. They supersede those published in the water-supply

papers indicated.

Water-Supply 

Paper

843, 861. .... 

981. .........

Water 

year

1928

1938 

1943

Date

Dec. 11 

Jan. 21

Gage height 

(feet)

14.7

15.28 

12.8

Discharge 

(cubic feet 

per second)

9,430

10,200 

7,010

Remarks.--Records good except those for period of no gage-height record, which are poor. 

Ho"~s~torage or diversion above station.

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

0.5 

.6

1.0 

1.4 69

2.4 

3.0 

4.0 

5.0

129

244

387

704

1,120

6.0

8.0

10.0

12.0

14.0

1,580

2,800

4,280

6,100

8,500

Discharge, in cubic feet per second, water year October 1950 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.

5.9

6.4

6.4 

6.4

6.8

8.4

8.0

6.8

6.4

6.4

6.1

5.9

5.6

57S

5.6

5.6

5.6

5.6

5.6

5.6

5.6

5.6 

6.4

13

50

124

244

93

74

318

T3T

L,189.3

38.4

2,360

Nov.

98

190

374 

222

134

95

73

67

61

49

41

38

TS3

45

47

99

354

6,320

5,150

*7,560

5,400

1,090 

660

493

411

350

303

*269

244

347

-

30,627

1,021

60,750

Dec.

322

259

6,560 

2,340

920

1,750

3,590

4,960

1,430

896

721

624

534

1,640

974

657

529

459

411

376

350

325 

301

283

272

252

238

231

223

219

209

32,855

1,060

65,170

Jan.

203

205

254 

248

225

209

203

194

188

190

186

194

188

182

TBT

182

207

294

236

234

278

1,250 

1,000

612

470

414

387

358

29~4 330

280

9,879

319

19,590

Feb.

265

259

259 

464

818

532

554

538

494

519

578

479

414

382

355

335

322

308

294

289

287

272 

259

250

250

240

230

210

_

_

-

10,456

373

20,740

Mar.

_

290

17,820

Apr.

(*)

_

533

31,690

May

_

567

34,890

June

_

202

12,000

July

_

31.2

1,920

Aug.

*9.7

373

8.9 

8.9

8.4

8.4

8.4

8.0

8.0

7.6

7.6

7.6

7.2

7.2

6.8

6.8

6.8

6.4

671

6.4

7.2

9.7 

7.6

7.2

6.8

6.4

6.4

6.4

6.4

6.4

6.8

232.1

7.49

460

Sept.

6.4

6.4 

6.1

6.1

5.9

5.9

5.9

5.6

5.6

5.6

5.6

5.6

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.4

5.1 

B7T

5.1

5.1

5.1

*5.4

5.4

5.6

5.6

167.8

5.59

333

Calendar year 1950: Max 7,560 Min 5.5 Mean 427 Ao-ft 309,000

Water year 1950-51: Max 7,560 Min 5.1 Mean 370 Ao-ft 267,700

../??.,'': dlacharg e (base. 960 cfs). Nov. 18 (10 p.m.) 11,600 ofs (16.21 ft); Nov. 20 (10- 

12,100 cfs U6.55 ft;; Dec. 3 (5 p.m.) 11,500 ofs 16.13 ft): Dec. 8 (9 a.m.) 7,410 cfs' 

?6 'n ^-( ?] ?-7 P ;!"; ) 2 ' ? °° ° fS (7 ' 86 f^ s Jan - 22 < 2:3° P- m '5 1.480 ofs (5.81 ft); Feb. : 

(5 67 ft! probably Apr. 10 (time and discharge unknown); May 11 (time unknown)

* Discharge measurement made on this day.

Note'. Ho gage-height record Feb. 24 to July 31; monthly runoff In acre-feet estimated 

records for station near Placervllle.

30 p.m.) 

(13.13 ft); 

5 (5 a.m.) 

1,420 ofs

on basis of
430 SACRAMENTO RIVER BASIN

South Fork Silver Creek near Ice House, Calif.

Location. Lat 38°49', long. 120°22', in sw£ sec. 1, T. 11 N., R. 14 E., on left bank 0.5 

mile upstream from Peavine Creek, 1.5 miles northeast of Ice House, and 8 miles northeast of Riverton.

Drainage area.--28.4 sq mi.

Records available. October 1924 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 5,300 ft (from topographic map).

Average discharge. 27 years, 72.9 cfs.

Extremes.--Maximum discharge during year, 3,900 cfs Nov. 18 (gage height, 6.69 ft), from 

 rating curve extended above 540 cfs on basis of slope-area determination of peak flow;

minimum, 0.9 cfs Sept. 26, 27.

1924-51: Maximum discharge, that of Nov. 18, 1950; minimum, 0.1 cfs Aug. 21 to

Sept. 6, 1931.

Remarks. Records good except those for periods of doubtful or no gage-height record, which 

are poor. No storage or diversion above station.

Rating table, water year 1950-51 (gage height, in feet, and discharge, 

In cubic feet per second)

0.5

2.5

6.8

12

32

1.2 

1.6 

2.0 

2.5 

3.0

56

112

198

334

492

3.5

4.0 

4.5 

5.0 

6.0

676

915

1,220

1,610

2,750

Discharge, in cubic feet per second, water year October 1950 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.

3.6

3.2

3.6

3.6

3.6

4.5

4.0

3.6

3.6

3.2

3.2

3.2

3.2

3.2

3.2

3.2

2.8

37?

3.2

3.2

3.2

2.8

2.8

4.5

11

26

41

d30

d25

9050"

344.4

11.1

683

Nov.

30

50

110

65

40

25

22

20

18

16

13

13" 12

14

15

,35

no

*2,000

1,700

2,500

1,800

350

220

*172

141

116

100

88

78

122

-

9,795

326

19,430

Dec.

100

83

-^ToT 1,820

307

546

1,040

1,210

496

310

242

207

171

416

295

203

158

135

123

108

97

88

82

79

72

67

61

60

58

56

53_

9,450

305

18,740

Jan.

57

56

64

60

55

51

52

49

46

49

45

49

49

49

46

47

48

44

IT

53

71

350 300"

181

133

112

102

91

85

76

76

2,590

83.5

5,140

Feb.

71

65

62

98

165

123

123

125

118

119

121

107

92

86

80

76

72

71

68

64

65

66

61

62

56

56

53

5F

_

-

2,380

85.0

4,720

Mar.

52

50

52

54

51

50

51

52

47

49

23" 43

46

51

55

60

62

59

64

72

85

86

85

94

110

104

97

97

118

loTT

86

2,133

68.8

4,230

Apr.

79S3"

88

94

121

137

131

158

208

272

278

281

286 570"

267

264

256

211

*201

216

229

227

216

203

179

147

147

198

156

127

-

5,730

191

11,370

May

112

108

129

150

137

137

129

147

206

289

He- 340

iss

139

170

234

292

303

314

317

320

298

292

292

314

340

337

298

229

191

147

7,085

229

14,050

June

116

102

98

97

102

100

95

89

83

89

100

*108

112

125

151

129

119

102

100

88

72

61

56

57

56

52

51

48

43

58

-

2,619

87.5

5,190

July

57

3T

33

28

24

24

26

22

20

20

20

20

20

19

18

17

16

16

16

16

16

14

12

11

9.8

8.7

7.7

7.2

6.8

6.8

6.3

552.3

17.8

1,100

Aug.

*6.3 ST3-

5.8

5.8

5'. 4

4.5

4.5

4.0

3.6

3.6

3.2

5.2

3.2

2.8

2.5

2.5

2.5

2.2

2.2

2.2

2.5

2.8

2.5

3.2

2.8

2.5

2.2

1.9

T7F

1.9

1.9

102.4

3.30

203

Sept.

1.9 T79"

1.9

1.9

1.9

1.9

1.9

1.6

1.6

1.6

1.6

1.6

1.6

1.3

1.3

1.3

1.5

1.5

1.5

1.1

1.1

1.1

1.1

1.1

*1.1

.9.5"

1.1

1.3

1.3

-

42.8

1.43

85

Calendar year 1950: Max 2,300 Min 2.8 Mean 143 Ac-ft 103,500

Water year 1950-51: Max 2,300 Min .9 Mean 117 Ao-ft 84,940

Peak discharge (base, 540 efs).--Nov. 18 (time unknown) 3,900 cfs (6.69 ft); Dec. 5 (6 p.m.) 3,170 

cfs (6.28 ft); Dec. 7 (4 a.m.) 1,820 cfs (5.22 ft); Dec. 14 (12m.) 609 cfs (3.33 ft); Jan. 22 (8 a.m. 

445 cfs (2.86 ft); Apr. 12 (ll p.m.) 346 cfs (2.54 ft); May 11 (1:50 a.m.) 445 cfs (2.86 ft); May 25 

(9 p.m.) 416 cfs (2.77 ft).

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge estimated on basis of records for Silver Creek at Union 

Valley.

Note. No gage-height record Oct. 50 to Nov. 24; discharge estimated on basis of records for Silver 

Creek at Union Valley.
SACRAMENTO RIVER BASIN

Silver Creek near Placerville, Calif.

431

Location. Lat 38°47 I , long. 120°35 I , in SWij sec. 13, T. 11 N. , R. 12 E., on right bank

CTii mile upstream from mouth and 12 miles northeast of Placerville. 

Drainage area. 176 sq ml.

uecoras available.--December 1921 to September 1951. 

uage. water-stage recorder. Altitude of gage Is 2,250 ft (from topographic map). Prior

?o Oct. 19, 1930, at site 400 ft downstream at different datum. 

Average discharge.--29 years (1922-51), 400 cfs. 

Extreme's. --Maximum discharge during year, 25,800 cfs Nov. 18 (gage height, 14.25 ft), from

raTIng curve extended above 3,900 cfs on basis of slope-area determination of peak flow;

minimum, 29 cfs Sept. 25.

1921-51: Maximum discharge, that of Nov. 18, 1950; minimum, 5.5 cfs Sept. 18, 1934. 

Revisions. The figures of maximum discharge for some water years have been revised,

as snown in "the following table. They supersede those published In the water-supply

paper Indicated.

Water-Supply 

Paper

671, 843, 861 

843, 861.....

901..........

981..........

1041. .........

Water year

1928 

1938

1940

1943

1945

Date

Mar. 25

Mar. 26

Feb. 2

Gage height 

(feet)

12.8 

13.8

11.1

12 4

11.0

Discharge 

(cubic feet 

per second)

17,600 

oo rinn

10,800

15,800

10.400

Remarks. Records good. No storage or diversion above station.

KevisTohs.--Revised figures of daily discharge, in cubic feet per second, for the highwater period In the water year 1938, and supplemental peak discharges for the water 

years 1940, 1943, superseding those published In Water-Supply Papers 861, 901, and 981, 

are given herewith:

Dec. 10, 1937 .......... 5,680

11 ................ 12,400

Revised peak discharge. 1959-40; Mar. 26 (11:30 p.m.) 10,800 cfs; Mar. 3O (5 p.m.) 9,010 cfs. 

1942-43:Jan. 21 (8 p.m.) 15,800 cfs; Mar. 10 (4 a.m.) 7.99O cfs.

Month

Calendar year 1937... 

Water year 1937-38...

Cfs-days

161,614 

260,366

Maximum

12,400 

12,400

Minimum

26 

30

Mean

443 

713

Runoff 

(acre-feet)

57,010

320,500 

516,400

Discharge, In cubic feet per second, water year October 1950 to September 1931

Day

1

2

3

4

5

6

7

8

9

10

11 

12

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

36

36

36

37

41

40

38

36

35

35 

34

31

34

34

34

34

34

34

34

34

34

35

46

109

237

'510" 560

152

512

315

2,955

95.3

5,860

Nov.

193

239

492

438

270

191

154

135

126

109

93

87

1&5

126

102

232

600

*12.700

10,200

12,500

11,300

2,640

1,560

1,180

972

820

*696

625

555

671

-

60,106

2,004

119,200

Dec.

686

550

9.810

5,610

2,090

2,650

6,300

8,620

3,460

2,060

1,600 

1,360

1,170

2,610

1,840

1,400

1,140

1,000

910

820

760

701

665

625

593

558

527

512

500

493

470

62,090

2,003

123,200

Jan.

452

452

562

535

489

456

441

427

410

427

431 

410

403

400 416"

400

445

931

706

589

616

2.770

2,300

1,500

1,190

1,020

932

en

805

720

670

23,170

747

45,960

Feb.

633

625

593

755

1.550

1,190

1,110

1,130

1,040

1,050

1,250 

1,160

1,020

*915

850

790

755

725

665

665

645

617

577

566

569

550

538

512

_

-

-

23,025

822

45,670

Mar.

516

493

459

WS

527

554

597

562

554

508

489 

504

542

585

621

657

678

641

674

720

800

795

780

820

910

876

830

820

'9T6" 932

780

20,658

666

40,970

Apr.

730

755

775

780

970

1,030

1,000

1,040

1,190

1.410

1,400 

1,350

1,340

1,300.

1,270

1,190

1,150

1,000

932

937

954

942

932

888

810

696

'554" 645

825

688

-

29,923

997

59,350

May

678

645

750

1,110

1,010

1,040

942

932

1,080

1,270

1.590 

1,100

904

785

810

959

1,110

1,110

1,130

1,100

1,100

1,040

988

982

1,010

1,070

1,020

948

790

720

601

30,324

978

60,150

June

527 JST

474

463

418

463

456

427

403

407

424 

438

431

410

459

431

417

J62

359

332

305

302

249

242

*239

224

210

203

187

173

-

10,976

366

21,770

July

156" 162

147

139

129

121

115

112

105

99

96 

95

93

91

87

82

78

75

72

71

71

70

66

63

60

57

55

52

50

49

48

2,766

89.2

5,490

Aug.

47

47

47

46

46

46

45

44

43

43

42

41

41

40

40

39

38

38

57

36

36

59

40

59

38

58

57

37

37

58

58

1,265

40.7

2,510

Sept.

"57 38

57

36

55

55

54

35

55

*55

32 

52

52

32

31

51

51

51

30

W

30

50

50

50

30

JO

30

30

31

32

-

966

52.2

1,920

Calendar year 1950: Max 12,700 Mln 34 Mean 824 Ac-ft 596,700

Water year 1950-51: Max 12,700 Mln 30 Mean 735 Ac-ft 532,000

Discharge measurement made on this day.
43^ SACRAMENTO RIVER BASIN

American River flume near Camino, Calif.

Location. Lat 38°46', long. 120°42', in SWir sec. 25, T. 11 N., R. 11 E., on right bank 

duu rt upstream from Iowa Canyon Creek, 1 mile downstream from diversion dam, and 3 miles 

northwest of Camino.

Records available. November 1922 to September 1951. Published as "Western States Gas & 

Electric uo 1 .s Flume" 1922-29, and as "South Fork of American River flume" 1930-35.

Gage. Water-stage recorder. Altitude of gage is 1,710 ft (from topographic map). Prior 

£o Oct. 27, 1929, staff gage at same site and datum.

Average discharge.--29 years, 108 cfs.

Extremes. Maximum daily discharge during year, 167 cfs on many days during November; no 

Flow Nov. 20 to Sept. 30.

1922-51: Maximum daily discharge, 189 cfs Aug. 15, 16, 1942, June 28, 1944; no flow 

at times in each year.

Remarks.--Records good. Flume diverts from South Fork American River in SWij sec. 24, T. 11 

ff., K. 11 E., for power development in SW^ sec. 20, T. 11 N., R. 11 E., just above Rock 

Creek, at which point water is returned to South Fork.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Discharge, in cubic feet per second, water year October 195O to September 1951

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.

164

160

165

165

165

165

164

158

146

138

136

124

154

154

148

102

144

160

16O

154

151

151

155

161

160

160

159

16O

162

161

160

4,766

154

9,450

Nov.

160

160 160*

163

164

166

167

167

167

167

167

153

155

166

166

167

166

151

4.7

O

0

O

0

O

O

O

0

O

0

0

2,936.7

97.9

5,82O

Dec.

O

O

O

Jan.

O

O

O

Feb.

O

0

0

Mar.

O

O

0

Apr.

O

0

O

May

o

0

0

June

O

0

o

July

O

O

O

Aug.

O

O

O

Sept.

0

O

O

Calendar year 195O : Max 167 Mln O Mean 129 Ac-ft 93,82O

Water year 195O-51 : Max 167 Min O Mean 21.1 Ac-ft 15,27O
SACRAMENTO RIVER BASIN 433 

South Fork American River near Camino, Calif.

Location. Lat 38°46', long. 120°42', in SW^ sec. 25, T. 11 N., R. 11 E., on right bank 

StfCTTt upstream from Iowa Canyon Creek, 1 mile downstream from intake of American River 

flume, and 3 miles northwest of Camino.

Drainage area. 497 sq mi.

Records available.--October 1922 to September 1951.

Gage.--Staff gage read twice daily. Altitude of gage is 1,640 ft (from topographic map). 

Prior to Oct. 31, 1950, water-stage recorder at same site and datum.

Average discharge.--29 years, 917 cfs, combined flow of South Fork American River near 

uamino ana American River flume.

Extremes.--Maximum discharge during year, 46,000 cfs Nov. 21 (gage height, 29.4 ft from 

FTooftmarks), from rating curve extended above 24,000 cfs on basis of flow at upstream 

and downstream stations; minimum, 5.7 cfs Oct. 12, 16-17.

1922-51: Maximum discharge, that of Nov. 21, 1950; minimum, 1.2 cfs Aug. 24, 1931.

Remarks. Records good except those below 50 cfs and those for periods of doubtful or no 

gage-height record, which are fair. Flow partly regulated by four reservoirs since 

beginning of record (total usable capacity, 35,500 acre-ft). Two diversions above 

station; American River flume (see p. 432 1 and El Dorado Canal (see p. 426 ).

Cooperation.--Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Revisions (water years). W 931: 1928, 1938, 1940(M).

0.5

.6 

i.o

1.5

2.0

4.8

7.0

Rating tables, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Nov. 20

2.5

3.0 

4.0 

5.0 

7.0

143

222

466

828

10.0

14.0

21.0

Nov. 21 to Sept. 30

4,300

9,400

23,800

2.2

3.0 

4.0 

5.0

111

277

576

1,000

7.0

10.0

15.0

22.0

2,200

5,150

12,300

26,200

Discharge, in cubic feet per second, water year October 1950 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.

11

10

18

27

21

25

30

25

9.7

9.1

8.8

7.9

9.7

9.7

9.4

IT" 6.8 

25

19

9.4

8.5

8.5

8.8 

20

109

305

935 

312

166

766

554

3,497.3

113

6,940

Nov.

273

374

737

692

341

196

137

106

91

73

44

14

5T

135

97

255 

752

17,500

a2 1,000

323,000

326,000

aB^OOO

34,300 

33,100

*2,570

32,150

31,850 

31,600

31,500

31,600

-

118,538

3,951

235,100

Dec.

31,500

31,300

17,000

313,000

34,900

35,800

16,000

*20,000

*9,800

*6,180

4,830

3,850

3,300

6,020

4,200

3,540 

2,950

2,700

2,410

2,200

2,050

1,850

1,700 

1,620

1,540

1,450

1,360 

1,300

1,270

1,270

1,290

148,180

4,780

293,900

Jsn.

1,250

1,350

1,370

1,260

1,200

1,090

1,150

1,250

1,300

1,260

1,070

1,000

970

1,1375

2,230

2,060 

1,720

1,470

1,330

*1,490

1,580

7,440

7.650 

5,44O

3,800

3,030

2,650 

2,440

2,230

1,920

1,720

66,850

2,156

132,600

Feb.

1,680

1,550

1,490

1,660

1,890

2,170

2,520

2,700

2,520

2,360

2,780

2,860

2,480

2,200

2,030

1,890 

1,720

1,660

1,600

1,550

1,490

1,380

1,300 

1,250

1,240

1,190

1.120 

1,120

_

_

-

51,400

1,836

102,000

Mar.

1,200

1,180

1,120

1,080

1,170

1,550

1,780

1,620

1,470

1,320

1,180

1,220

1,390

*1,510

1,590

1,680 

1,790

1,670

1,700

1,790

1,860

1,930

1,890 

1,950

2,020

2,070

2,050 

1,990

2.190

2,140

1,850

50,950

1,644

101,100

Apr.

1,670

1,780

1,740

1,730

2,130

2,340

2,280

2,330

2,580

2,870

2,920

2,980

2,960

3,010

2,92O

2,940 

2,850

2,540

2,420

2,380

2,470

2,380

2,380 

2,160

2,030

1,800

1,660 

2,460

2,100

1,730

-

70,540

2,351

139,900

May

*1,670

1.640

1,730

2,830

2,500

2,490

2,340

2,360

2,650

3,050

3,980

2,800

2,360

2,140

2,170

2,400 

2,700

2,760

2,800

2,900

3,030

2,870

2,760 

2,830

2,850

3,010

2,960 

3,050

2,480

2,100

1,860

80,120

2,585

158,900

June

1,490

1,450

1,370

1,410

1,290

1,340

1,300

1,230

1,200

1,170

1,190

1,340

1,350

1,390

1,470

1.550 

1,450

1,280

1,120

1,170

1,070

955

833

690

714

663

629 

606

522

484

-

33,706

1,124

66,850

July

459

494

m

370

360

350

372

300

293

287

280

272

275

267

236

248 

246

234

231

229

225

227

222 

293

285

280

234 

236

214

216

196

8,825

285

17,500

Aug.

192

TS7

183

179

177

179

183

179

177

175

171

177

171

167

167

165 

165

165

163

161

161

T59~ 131

157

157

157

157 

157

151

165

165

5,210

168

10,330

Sept.

163

T6T

163

161

132

161

157

161

157

153

153

151

149

149

147

147 

147

134

145

147

*119

ns

149 

161

145

149

149 

151

149

151

-

4,504

150

8,930

Calendar year 1950: Max 26,000 Min 5.7 Mean 1,755 Ac-ft 1,271,000

Water year 1950-51: Max 26,000 Min 6.8 Mean 1,760 Ac-ft 1,274,000

Peak discharge (bsse, 4,100 ofs). Nov. 21 (sbout 2 a.m.) 46,200 cfs (29.4 ft)j Dec. 3 (sbout 7 

p.m.) sbout SS^OOO cfs; Dec. 8 110:30 a.m.) 25.100 cfs (21.5 ft); Dec. 14 (2 p.m.) 9,260 cfs (13.1 

ft); Jan. 22 (about 8 p.m.) 8,820 cfs (l2.8 ft); May 11 (6 s.m.) 4,790 cfs (9.7 ft).

* Discharge measurement made on this day.

a Doubtful or no gage-height record; discharge estimated on bssis of records for ststions at 

Kyburz and Coloma (unpublished).
434 SACRAMENTO RIVER BASIN

South Pork American River near Lotus, Calif.

Location. Lat 38°49'05", long. 120°56<45", in SWi sec. 11, T. 11 N., R. 9 E., on left 

bank 0.4 miles 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 1951.

Gage.--Water-stage recorder.. Altitude of gage is 635 ft (from topographic map).

Extremes.--Maximum discharge during period May to September, 3,550 cfs May 26 (gage 

 height, 7.97 ft); minimum, 104 cfs Sept. 26.

Maximum stage known since 1862, SO.4 ft Nov. 21, 1950, from floodmarks (discharge, 

52,200 cfs on basis of slope-area determination of peak flow).

Remarks. Records excellent except those for period of doubtful gage-height record, which 

are~good. Flow partly regulated by two powerhouses and four reservoirs since beginning of record (total usable capacity now 35,500 acre-ft). Diversions for irrigation 

and domestic supply above station (see records for El Dorado Canal, p. 426).

Rating table, May 12 to Sept. 3O, 1951 (gage height, In feet, 

and discharge, in cubic feet per second)

4.2

4.4 

4.6 

5.0

157

199

249

385

5.5 

6.0 

7.0 

8.0

650

1,040

2,150

3,600

Discharge, In cubic feet per second, May 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. Mar. Apr. May

-

_

.

-

_

-

.

_

-

_

3,ooo

2,540

2,270

2,180

2,290

*2,660

2,720

2,820

2,950

3,000

2,960

2,800

2,890

2,820

3,130

3,070

5.140 

2,560

2,270

1,890

_

_

-

June

1,650 

dl,500

dl,450

dl,450

*dl,400

1,370

1,320

,270

,170

,170

,190

,250

,260

,520

,410

,400

,440

,510

,150

,090

1,040

942

858

785

748

671

652

620 

602

552

-

55,958

1,152

67,550

Calendar year : Max Mln Mean Ac -ft

July

496 ISO"

455

435

*405

565

542

520

514

500

504

294

297

266

504

259

258

255

258

264

261

255

244

252

249

244

241

255

231

231

225

9,275

299

18,590

Aug.

221 

216

216

221

256

192

206

206

195

186

209

226

171

T5T

195

*195

192

195

197

190

199

192

2O4

209

199

197

190

184 

181

190

201

6,2O8

2OO

12,510

Sept.

192 

204

197

175

192

184

190

188

175

186

177

177

181

177

173

181

171

177

179

179

167

173

188

173

165

190

192

190 

199

226

-

5,516

184

10,940

Water year : Max Mln Mean Ao-ft

* Discharge measurement made on this day.

d Doubtful gage-height record; discharge interpolated.
SACRAMENTO RIVER BASIN 435

Webber 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

 I~inITe upstream from mouth, 3.9 miles east of Salmon Palls, and 6 miles southwest of 

Coloma.

Drainage area. 100 sq mi, approximately (by Bureau of Reclamation).

Records available. March 1943 to September 1951.

Gage . --Water-stage recorder Altitude of gage is 610 ft (from topographic map).

Average discharge. --8 years, 71.4 cfs.

Extremes . --Maximum discharge during year, 6,740 cfs Nov. 18 (gage height, 14.2 ft); no 

TTow at times during several months.

1943-51: Maximum discharge, that of Nov. 18, 1950; no flow at times in 1945, 1947, 

1950-51.

Remarks. Records good except those for periods of no gage-height record, which are poor.

 Flow regulated by reservoir (capacity, 1,275 acre-ft) on headwaters from which most of 

flow is diverted during irrigation season. Small amount of water diverted from South 

Pork American River enters watershed during irrigation season.

Rating tables, water year 1950-51 (gage height, in feet,

ond) ,

and discharge, in cubic feet per seco 

(Shifting-control method used May 24, 25)

4.5

4.6

4.7

4.8

4.9 

5.1 

5.5 

6.0

Oct. 1 to June 3

7.0

7.5

8.0

9.0

10.0

11.0

13.0

June 4 to Sept. 50

83

143

240

380

745

1,290

2,210

4,910

4.9

5.0

5.1

5.2

5.3

5.4

1.6 

5.1 

9.2

Discharge, in cubic feet per second, water year October 1950 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.

0

S

0

0

0

0

0

0

0

0

0

0

0

0

0

0

**0

1.5

2.7

2.7

2.7

2.7

3.4

5.7

8.6

48

40

16

27

52

22

235.0

7.58

466

Nov.

16

12

11

11

10

9.4

8.6

 BT5 8.4

8.6

8.9

8.9

14

33

21

72

99

4,230

1,190

*4,410

2,300

582

302

185

134

106

87

74

66

71

-

14,097.7

470

27,960

Dec.

*68

59

1,670

1,760

574

428

*1,290

1,500

1,860

726

470

484

345

371

1,100

566

395

302

245

206

173

154

142

129

121

113

105

98

93

88

112

15,747

508

31,230

Jan.

99

88

W

156

130

111

97

92

112

378

778

816

395

258

175

230

288

1,380

1,830

722

486

2,250

970

612

450

362

299

252

223

199

172

14,479

467

'8,720

Feb.

152

139

129

140

404

542

*195

177

156

146

226

835

150

329

240

221

191

199

173

152

152

149

136

125

115

114

148

195

_

-

6,328

226

12,550

Mar.

172

210

170

266

1,080

862

1,170

688

573

457

555

290

*260

228

185

181

168

158

148

137

130

124

117

110

95

87

84

85

 55 80

85

8,814

284

17,480

Apr.

79

76

72

71

69

67

66

65

60

56

50

50

45

59

TZ

44

45

45

41

41

40

40

40

42

44

44

45

98

121

TOO

1,729

57.6

3,430

May

75

67

357

526

T45

100

75

60

55

52

50

48

47

44

39

34

32

29

25

22

20

16

15

15

14

14

14

15

15

12

TZ

2,044

65.9

4,050

June

11

TT

11 *11

9.6

9.2

9.2

9.6

8.8

8.4

8.4

8.4

7.9

7.5

7.1

7

7

7

7

6

6

6

6

5

5

5

5

4

4

4

222.1

7.40

441

July

4

3

5

5

5

5

2

2

2

2

2

1

1

1

1

1

1

1

*.5

.2

0

0

0

.2

1.6

.7

.2

0

. 0

0

0

59.4

1.27

78

Aug.

0

0

0

Sept.

0

0

0

0

0

0

0

0

5.0

5.8

5.8

5.5

575

1.0

.7

1.0

.9

.4

.1

0

0

0

.9

.8

1.2

.6

.4

.2

.1

0

-

28.2

0.94

56

Calendar year 1950: Max 4,410 Hln 0 Mean 135 Ac-ft 97,880

Water year 1950-51: Max 4,410 Min 0 Mean 175 Ac-ft 126,500

Peak discharge (base, 2,400 cfs). Nov. 18 (4 p.m.) 6,740 cfs (14.2 ft); Dec. 5 (11 p.m.) 4,160 

efs 113-5O ft); Dec. 9 11 a.m.; 3,640 efs (12.15 ft); Jan. 18 (11 p.m.) 4,540 efs (12.75 ft); Jan. 

22 (12 p.m.) 4,160 cfs (12.50 ft).

* Discharge measurement made on this day.

** Field estimate made on this day.

Note.--No gage-height record Oct. 1-17, May 26 to June 5, June 16 to July 18, and July 51 to Sept. 

8; discharge Interpolated or estimated on basis of range in stage and weather records.
436 SACRAMENTO RIVER BASIN

American River at Pair Oaks, Calif.

Location. Lat 38°38'15", long. 121°15'55", on right bank just upstream from highway bridge 

aTTgfir Oaks, Sacramento County, 10 miles downstream from South Fork, and at mile 19.2.

Drainage area. 1,921 sq mi.

Records available.--November 1904 to September 1951.

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. 46 years (1905-51), 3,722 cfs.

Extremes. Maximum discharge during year, 180,000 cfs Nov. 21 (gage height, 31.85 ft); minimum, 197 cfs Sept. 4.

1904-51: Maximum discharge, that of Nov. 21, 1950; minimum, 3.6 cfs Aug. 16, 1924.

Remarks.--Records good. Flow regulated by Silver and Medley Lakes since beginning of record, Twin Lakes since 1917 (combined capacity, now 35,500 acre-ft), and power plants 

above station. Many diversions above station for irrigation. Some inflow from Bear and 

Yuba River Basins. Records of chemical analyses and water temperatures for the water 

year 1951 are given in Water-Supply Paper 1200,

Revisions (water years).--W 1181; 1928(M).

Discharge, in cubic feet per second, water year October 195O 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.

410 

46T

456 

444

473

473

497

522

504

473

*461

479

450

473

491

491

485

473

540

572

566

553

572

611

658

930

3,590 

'3,090

1,680

2,210

4,500

28,588

922

56,7OO

Nov.

2,230 

1,640

1,820 

2,500

2,180

1,690

1,460

1,290

1,170

1,120

1,070

997

953

1,050

*1,390

1,340

3,360

46,600

*1O9,OOO

81,500

*132,000

* 35,6OO

17,000

10,600

7,970

6,600

5,580 

4,960

*4,460

4,320

-

493,450

16,450

978,700

Dec.

4,820 

4,510

35,200 

*76,400

24 , 500

16,500

45 , 000

60,300

43,800

22,500

16,800

14,900

*11,800

20,700

24,000

16,600

12,400

10,200

9,O3O

7,980

7,200

6,620

6,140

5,750

5,500

5,230

5,020 

4,850

4,7OO

4,660

4,660

538,070

17,360

L,067, 000

Jan.

4,480 

,360

,560 

,100

,700

,500

,360

,240

,160

,990

,560

,250

,410

,850

,770

,290

,090

17,400

*18,5OO

9,990

8,080

*59,500

30,000

18,600

14,100

12,100

10, 900 

1O,OOO

9,O4O

8,340

7,450

299,670

9,667

594,400

Feb.

6,880 

6,360

6,020 

6,570

15,600

12,500

10,500

10,800

9,900

9,250

10,700

12,900

10,500

9,140

8,230

7,500

7,010

6,850

6,510

5,920

5,970

5,610

5,400

4,980

4,810

4,740

*5,080 

4,900

_

-

218,950

7,819

434,200

Mar.

4,600 

4,650

4,240 

4,810

9,640

9,580

15,800

10,600

9,170

8,O8O

6,830

6,250

*6,550

6,750

6,960

7,060

6,960

6,410

6,150

6,280

6,720

6,950

6,670

6,460

6,670

*6,850

6,590 

6,310

6,490

7,170

6,260

218,210

7,039

432,800

Apr.

5,610 

5,480

5,530 

5,500

6,540

7,110

7,190

7,400

7,920

9,170

9,710

9,090

9,060

9,450

9,040

9,010

8,700

7,820

7,040

6,750

6,800

6,540

6,410

6,250

5,710

*5,280

4,810 

6,100

7,570

5,870

-

214,220

7,141

424,900

May

5,250 

4,950

5,500 

11.000

9,090

8,280

8,000

7,400

7,870

8,910

10,800

9,510

7,840

6,700

6,250

6,410

7,500

7,820

7,950

8,O2O

7,760

7,710

7,500

7,060

6,850

7,560

7,520 

7,500

6,280

5,480

*4J 700

250,550

7,451

456,900

June

4,060 

5,690

5,380 

3,200

5,180

5,160

5,040

2,890

2,700

2,610

2,600

2,610

2,610

2,740

2,900

2,960

2,900

2,720

2,450

2,340

2,260

2,080

1,880

1,740

*1,670

1,600

1,420 

1,380

1,500

1.250

-

75,280

2,509

149,500

July

1.150 

1,110

1,070 

995

930

870

807

756

7O8

700

650

638

650

605

578

560

557

501

486

476

505

486

462

451

425

410

395 

576

567

555

542

19,327

623

58,550

Aug.

526 

337

524 

516

526

516

*506

304

304

511

504

504

296

291

286

286

284

277

277

274

269

277

281

289

289

284

272 

274

279

277

*274

9,114

294

18,080

Sept.

289 

286

516 

286

274

267

511

286

258

253

279

244

249

251

249

244

251

246

249

246

249

237

244

258

260

326

313 

304

515

516

-

8,154

272

16,170

Calendar year 195O: Max 132, OOO Mln 176 Mean 6,518 Ac-ft 4,718,000

Water year 195O-51: Max 132,000 Mln 237 Mean 6,448 Ac-ft 4,667,000

Peak discharge (base. 20.OOO cfs). Nov. 19 (5 a.m.) 165,000 of? (5O.65 ft); Nov. 21 (4:5O a.m.) 

ISO,OOO cfs (51.85 ft); Dec. 5 (1 a.m.) 156,OOO cfs (28.55 ft); Dec. 8 <1 p.m.) 86,OOO cfs (22.58 

ft); Dec. 14 (8 p.m.) 36.2OO cfs (13.89 ft); Jan. 18 (4 p.m.) 33,6OO cfs (13.30 ft); Jan. 22 (l p.m.) 

52,900 cfs (16.90 ft).

* Discharge measurement made on this day.
SACRAMENTO RIVER BASIN 437

American River at Sacramento, Calif.

Location. Lat 38°34'05", long. 121°25'20", on left bank at H Street Bridge, just east of 

SaTTrSroento, Sacramento County, 6.5 miles upstream from mouth.

Records available.--July to October 1921, October 1929 to October 1932, May 1934 to December a.942 (low-water periods only); May 1943 to September 1951.

Gage.--Water-stage recorder. Datum of gage is set to datum of Corps of Engineers. AuxilTary water-stage recorder 2.8 miles downstream from base gage.

Average discharge.--8 years, 3,402 cfs.

Extremes. Maximum discharge during year, 106,000 cfs plus estimated overflow of 70,000 

 cTsTov. 21 (gage height, 45.73 ft); minimum, 197 cfs Sept. 16 (gage height, 17.13 ft). 

1921, 1929-32, 1934-51: Maximum discharge, that of Nov. 21, 1950; minimum discharge 

recorded, 21 cfs Aug. 14, 1931.

Remarks. Records good. Unmeasured flow on right bank bypassed gage on Nov. 19-22, Dec. 3, 

3"7~~7, 8. Plow regulated by reservoirs and power plants above station. Many diversions 

above station for irrigation. Some inflow from Bear and Yuba River basins.

Cooperation.--Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

1

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

458 

 50T 451

474

482

505

497

538

530

489

*482

482

466

466

489

489

482

474

538

555

563

555

580

616

680

858

*2,870

3,540

1,900

1,700

4,800

28,514

920

56,560

Nov.

2,460 

1,650

1,730

2,310

2,300

1,700

1,440

1,270

1,160

*1,060

1,010

928

880

S9T

1,290

1,270

2,880

20, 500

*77,000

54,700

94,300

*39,800

18,800

11,400

9,230

7,260

5,930

5,320

*4,700

4,340

-

379,510

12,650

752,700

Dec.

4,840 

4,360

15,200

62,500

*2 4.600

16,300

38,000

48,600

44,800

24,000

17,300

15,800

12,500

19,000

23,400

15,400

12,100

9,790

8,880

8,100

7,300

6,700

6,300

5,900

5,700

5,400

5,200

4,900

4,800

4,680

4,660

487,010

15,710

966,000

Jan.

4,110 

3,810

3,960

4,960

4,620

4,150

3,800

*3,580

3,440

4,llO

7,000

8,610

6,020

4,840

4,340

5,200

4,740

13,100

*20,600

10,800

8,140

33,200

29,900

18,500

14,200

11,900

10,700

9,790

8,930

8,220

6,970

286,240

9,234

567,700

Feb.

6,460 

6,230

6,470

6,490

12,300

12,900

10,000

10,300

9,600

8,770

9,900

12,400

10,300

8,940

8,390

7,770

7,210

7,130

6,480

5,980

5,980

5,650

*5,250

4,920

4,640

4,600

*4,940

5,160

_

-

-

215,160

7,684

426,800

Mar.

5,020 

4,740

4,190

4,130

8,250

9,530

12,900

*10, 700

8,750

8,270

7,480

6,580

6,450

6,620

6,820

6,890

6,800

6,380

5,980

6,040

6,360

6,640

*6,490

6,250

6,36.0

6,600

6,380

6,130

6,110

6,890

6,300

213,030

6,872

422,500

Apr.

5,580 

5,310

5,410

*5,470

5,960

6,820

6,970

7,060

7,410

8,380

9,100

8,610

8,540

8,770

8,700

8,480

*8,340

7,660

6,970

6,640

6,600

6,470

6,380

6,280

5,860

5,460

5,020

5,250

7,720

6,230

-

207,490

6,916

411,600

May

5,520 

5,250

5,270

9,740

9,260

8,180

8,050

7,520

*7,710

8,470

9.990

9,870

7,990

7,040

6,450

6,450

7,140

7,760

7,780

7,900

7,780

7,710

7,320

7,160

6,980

7,300

7,340

7,410

*6,560

5,740

5,040

229,680

7,409

455,600

June

4,200 

3,680

3,340

3,180

3,130

*3,150

3,040

2,960

2,720

2,640

2,500

2,640

2,640

2,660

2,820

2,940

2,900

2,820

2,480

2,300

2,220

2,080

1,900

1,730

*1,640

1,580

1,440

*1,300

1,270

1,170

-

75,070

2,502

148,900

July

1,070 

1,010

968

926

885

817

734

697

646

629

604

580

580

588

549

541

483

*475

461

441

455

475

468

434

414

401

395

376

358

358

351

18,169

586

36,040

Aug.

339 339"

333

328

322

316

*316

310

*305

299

299

299

288

288

282

282

282

282

282

282

282

282

282

293

310

299

282

282

282

282

*282

9,231

298

18,310

Sept,

316 

305

339

345

272

282

293

364

266

246

282

251

230

230

230

230

235

235

235

240

240

235

221 2-gT

272

358

322

339

310

376

-

8,360

279

16,580

Calendar year 1950: Max 94,300 Mln 205 

Water year 1950-51: Max 94,300 Mln 221

Mean 6,104 

Mean 5,911

Ac-ft 4,419,000 

Ac-ft 4,279,000

Dlaoharge measurement made on this day. 

256498 O - 53 - 29
438 SACRAMENTO RIVER BASIN

Kelsey Creek near Kelseyville, Calif.

Location. Lat 38°55'45", long. 122°50 T 25", in SE^ sec. 34, T. 13 N. , R. 9 W. , on left 

canK 1.5 miles downstream from Widow Creek and 3.5 miles south of Kelseyville.

Drainage area. 37.4 sq mi.

Records available. October 1946 to September 1951. December 1945 to September 1946 in 

unpuDiisned reports of Bureau of Reclamation.

Gage. Water-stage recorder. Altitude of gage is 1,450 ft (from topographic map). 

Average discharge. 5 years (1946-51), 45.9 cfs.

Extremes.--Maximum discharge during year, 3,110 cfs Dec. 3 (gage height, 11.38 ft), from 

rat ing curve extended above 1,200 cfs by logarithmic plotting; minimum, 1.0 cfs 

Sept. 12-14, 16-17.

1946-51: Maximum discharge, that of Dec. 3, 1950; minimum, 0.5 cfs Sept. 1, 1950, 

but may have been less during August 1950.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Ho storage or diversion above station.

Rating tables, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 1 to Feb. 11 Feb. 11 to Sept. 30

.7

.8

1.0

1.5

3.1

5.6

9.2

20

1.4 

1.8 

2.4 

3.2 

4.0

52

100

208

392

594

1,160

1,490

0.5 

.6

1.0

1.3

2.4

4.0

7.2

17

1.3 37

1.8 84

2.3 164

3.0 325

4.0 580

Discharge, in cubic feet per second, water year October 1950 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.

2.0

1.8

2.O

2.5

2.8

2.8

2.9

3.1

3.1

3.1

2.8

2.6

2.3

2.3

2.1

2.5

4.4

*5.6

4.4

3.8

3.8

3.8

4.1

4.6

13

137

127

222

437

2§2

79

1,382.2

44.6

2,740

Nov.

42

29

20.

16

14

12

10

9.2

8.1

7.0

6.7

6.7

6.3

6.0

14

1,170

254

566

310

570

368

2O8

146

106

82

68

63

50

49

*42

-

4,259

142

8,450

Dec.

*39

55

1.440

519

239

285

283

243

226

176

219

166

155

434

252

194

159

134

118

100

87

79

72

65

61

55

51

47

45

43

40

6,081

196

12,060

Jan.

38

38

45

*40

37

36

33

32

30

TO

150

120

90

70

100

110

400

800

loo

250

750

650

300

250

200

170

150

130

110

100

90

5,799

187

11,500

Feb.

80

*74

76

294

278

176

141

122

106

103

507 282"

199

158

133

115

104

92

83

82

81

74

69

64

61

58

56

55

_

-

3,726

133

7,390

Mar.

58

57

56

124

140

217

TS7

*158

201

140

118

103

9.2

83

76

71

65

61

58

56

53

51

49

47

45

43

43

42

41

40

39_

2,624

84.6

5,200

Apr.

39

38

37

36

*36

35

32

32

31

30

29

28

28

27

26

26

26

26

25

25

24

23

22

22

24

22

22

46

27

24

868

28.9

1,720

May

23

*23

58

462

177

100

72

58

49

43

40

39

36

34

32

30

28

27

26

25

24

23

23

22

22

20

19

18

18

17

T7

1,605

51.8

3,180

June

16

Tl

15

15

15

15

15

14

14

13

*12

12

12

11

10

10

9.8

9.8

9.4

9.8

10

10

9.4

9.0

8.1

8.1

7.6

7.2

7.2

6.9

-

337.3

11.2

669

July

6.2

6.2

6.6

7.2

6.6

6.2

5.0

4.6

4.3

4.6

4.6

*5.0

5.0

4.6

4.0

3.8

3.7

3.3

3.0

3.3

3.8

3.5

3.5

3.7

3.5

3.2

2.8

2.8

2.5

275

136.2

4.39

270

Aug.

2.5

2.7

3.0

2.8

2.7

2.7

3.2

T72

3.0

2.8

2.7

2.5

2.4

2.4

*2.1

2.0

2.0

1.8

1.8

1.8

1.8

1.8

1.8

1.9

1.8

1.7

1.6 T79"

2.2

2.2

2.1

70.9

2.29

141

Sept.

1.9

1.9

1.8

1.6

1.7

1.8

1.8

1.9

1.7

1.6

1.5

.4

.4

.4

.4

.4

.4

.5

* .7

.7

.7

.8

.9

.9

.9

2.1

2.1

2.2

2.4

2.7

-

53.2

1.77

106

Calendar year 1950: Max 1,440 Min 0.7 Mean 7O.5 Ac-ft 51.O1O

Water year 1950-51: Max 1,440 Min 1.4 Mean 73.8 Ac-ft 53,430

Peak discharge (base, 1.60O efs).--0et. 29 (8 p.m.) 1,870 cfs (8.O9 ft); Nov. 16 (7 a.m.) 2.56O cfs 

(10.00 ft); Dec. 3 (1 p.m.) 3,110 cfs (11.38 ft); probably Jan. 18 (time Unknown) 1,72O ofs (7.66 ft); 

probably Jan. 21 (time and discharge unknown).

* Discharge measurement made on this day.

Note.--No gage-height record Jan. 9 to Feb. 1; discharge estimated on basis of records for Putah 

Creek near Guenoc.
SACRAMENTO RIVER BASIN 439

Clear Lake at Lakeport, Calif.

Location.--Lat 39°03' , long. 122°55', in SEij sec. 24, T. 14 N., R. 10 W., at municipal 

wharf on north side of Third Street in Lakeport.

Drainage area. 528 sq mi, including water surface of lake (65 sq mi). 

Records available. 1874-1900 (incomplete) and January 1913 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 1,318.59 ft above mean sea level, datum of

 T929. Prior to July 8, 1947, staff gage at same site and datum.

Extremes. Maximum daily gage height during year, 7.56 ft Mar. 17, 18, 22-24; minimum,

 D.UO ft Oct. 25-26.

1913-51: 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

 Tn~T915. Capacity between gage heights 0.00 and 7.56 ft (limits stipulated by court 

decree of 1920), about 319,000 acre-ft. Water is released down natural channel of 

Cache Creek from which it is diverted for irrigation (see Cache Creek near Lower Lake).

Cooperation.--Daily mean gage-height record furnished by Clear Lake Water Co.

Gage height, in feet, water year October 1950 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

Oct.

0.17

.15

.13

.12

.10

.09

.09

.06

.07

.06

.06

.05

.05

.04

.04

.03

.03

.02

.02

.02

.02

.01

.01

.01

0

0

.04

.06

.13

.17

.22

Nov.

-TST 0.27

.34

.35

.36

.37

.36

.39

.40

.40

.41

.42

.42

.43

.44

.45

.60

.72

.76

1.00

1.20

1.25

1.30

1.35

1.36

1.39

1.40

1.41

1.42

1.43

Dec.

1.45

T75S

1.75

2.50

2.75

2.92

3.10

3.25

3.36

3.45

3.53

3.62

3.72

3. 92

4.04

4.13

4.21

4.25

4.29

4.31

4.35

4.36

4.40

4.43

4.45

4.47

4.49

4.51

4.51

4.52

4.53

Jan.

4.53

4T5T

4.55

4.57

4.59

4.60

4.62

4.64

4.66

4.68

4.74

4.60

4.66

4.91

4.97

5.03

5.10

5.30

5.55

5.66

5.65

6.54

6.82

6.91

6.94

6.92

678S

6.60

6.73

6.65

6.57

Feb.

6.50

6.49

6.55

6.66

6.92

6.96

6.95

6.92

6.66

6.61

6.69

6.96

6.98

6.96

6.92

6.93

6.97

7.00

7.05

7.09

7.12

7.18

7.21

7.22

7.22

7.24

7.24

7.50

_

-

Mar.

7.30

7730"

7.33

7.36

7.39

7.42

7.41

7.33

7.26

7.35

7.39

7.43

7.47

7.50

7.52

7.54

7.56

7.56

7.55

7.53

7.55

7.56

7.56

7.56

7.53

7.51

7.52

7.50

7.47

7.48

7.49

Apr.

7.49

7.49

7.49

7.49

7.49

7.50

7.50

7.51

7.51

7.51

7.51

7.51

7.51

7.52

7752

7.51

7.50

7.50

7.50

7.49

7.48

7.46

7.39

7.36

7.37

7.34

7.30

7.30

7.29

7.26

May

7.26

7.26

7.35

7.40

7.45

7.47

7.49

7.50

7759"

7.47

7.45

7.42

7.40

7.39

7.37

7.36

7.33

7.31

7.29

7.26

7.23

7.19

7.15

7.12

7.10

7.07

7.03

6.96

6.95

6.91

6.66

June

6.62

6778"

6.73

6.69

6.65

6.60

6.55

6.51

6.46

6.43

6.39

6.34

6.32

6.26

6.25

6.21

6.17

6.12

6.08

6.03

5.97

5.93

5.68

5.83

5.76

5.71

5.66

5.65

5.60

5.56

July

5.50

STIF

5.36

5.34

5.28

5.24

5.20

5.16

5.11

5.08

5.04

4.99

4.95

4.90

4.65

4.60

4.76

4.72

4.68

4.62

4.56

4.53

4.50

4.46

4.42

4.37

4.32

4.26

4.22

4.17

4.12

Aug.

4.08

TTCB"

3.98

3.94

3.90

3.65

3.60

3.75

3.71

3.67

3.62

3.57

3.53

3.49

3.46

3.42

3.36

3.35

3.30

3.25

3.21

3.19

3.16

3.12

3.06

3.04

2.96

2.90

2.67

2.63

2.79

Sept.

2.75

2.72

2.68

2.64

2.61

2.58

2.54

2.51

2.49

2.46

2.44

2.40

2.38

2.35

2.33

2.31

2.29

2.27

2.26

2.24

2.22

2.20

2.16

2.17

2.15

2.13

2.11

2.09

2.07

2.06
440 SACRAMENTO RIVER BASIN

Cache Creek near Lower Lake, Calif.

Location. Lat 38°55', long. 122°34', in sec. 6, T. 12 N., R. 6 W., on left bank 500 ft 

 downstream from Clear Lake Dam, 1.5 miles 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 1951.

Gage. Water-stage recorder. Altitude of gage is 1,280 ft (from topographic map). 

Average discharge. 7 years, 177 cfs.

Extremes.--Maximum discharge during year, 5,470 cfs Jan. 25 (gage height, 8.71 ft); minimum, 0.4 cfs Nov. 6, 7.

1944-51: Maximum discharge, that of Jan. 25, 1951; minimum recorded, 0.2 cfs Mar. 15- 

23, 1950.

Remarks.--Records good. Flow completely regulated by Clear Lake.

Rating tables, water year 1950-51 (gage height, in feet, and discharge, in

cubic feet per second) 

(Shifting-control method used Dec. 15 to Jan. 25 and Mar. 26 to Apr. 17)

Oct. 1 to Jan. 23

58

117

203

314

Jan. 24 to Sept. 30

4.0 

5.0 

6.0

456

930

1,650

0.7 

1.0 

1.3

1.9 

2.5 

3.0 

3.5

54

125

209

319

6.0 

7.0

Discharge, in cubic feet per second, water year October 1950 to September 1951

460

930

1,650

2,720

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

3.7

3.4

3.2

4.5

4.1

4.0

4.0

3.8

3.8

3.6

3.3

3.4

3.3

3.3

3.3

*3.3

3.0

3.3

2.6

3.2

2.9

2.3

2.1

1.9

2.6

2.3

.6

.6

.6

^5.

90.1

2.91

179

Nov.

0.5

.8

1.3

3.0

1.7

.4

.4

.8

1.8

1.9

2.7

2.5

2.1

3.1

3.3

3.6

2.7

3.8

3.3

3.7

3.3

3.0

3.0

3.0

2.8

2.7

2.7

3.1

3.4

3.6

-

74.0

2.47

147

Dec.

*3.6

3.6

5,4

i^2

3.4

3.7

3.6

3.6

3.4

3.4

3.7

3.4

3.6

4.0

3.8

3.7

3.7

3.4

3.4

3.4

3.6

3.4

3.4

3.4

3.4

3.4

3.6

3.6

3.6

3.6

3.6

111.6

3.60

221

Jan.

3.4

3.6

*3.6

3.6

3.6

3.6

3.6

3.6

3.6

4.0

4.0

3.8

3.8

3.8

3.8

3.8

4.0

4.6

4.3

4.3

4.9

5.2

1,230

*1,750

*2,100

2,350

2,320

2,270

2,250

2,180

2,150

18,686 . 5

603

37,060

Feb.

1,240

9.3

8.8

8.6

930

2,310

2,330

2,320

2,300

2,250

2.550

2,410

2,400

2,350

1,490

13

12

14

14

13

13

13

13

13

13

13

13

13

_

_

-

25,076.7

896

49,740

Mar.

13

13

13

13

171

1,830

2.470

2,150

587

7.8

7.2

6.9

6.8

6.6

6.6

6^5

213

457

457

457

457

192

219

463

460

261

13

13

14

14

14

11,012 . 4

355

21,840

Apr.

12

12

12

*12

12

12

12

21

27

21

12

12

12

19

26

21

64

115

148

215

309

365

431

463

477

494

530

405

228

178

-

4,677

156

9,280

May

236

*260

137

54

27

14

14

49

218

312

322

344

344

342

339

384

447

447

450

474

501

530

534

519

512

498

480

480

480

480

494

10,722

346

21,270

June

512

519

526

538

558

570

558

550

550

554

*554

562

566

579

602

615

615

615

615

610

610

602

592

592

602

592

562

546

523

512

-

17,010

570

33,920

July

501

g487

g477

g477

g494

g512

g494

g477

g470

g477

g505

g512

*512

512

494

480

487

505

523

523

512

512

505

501

530

550

558

562

562

562

562

15,835

511

31,410

Aug.

542

519

501

487

477

477

477

487

498

477

438

413

413

*425

434

441

438

434

438

441

454

454

450

454

449

494

457

434

416

416

598

14,135

456

28,050

Sept.

584

584

584

581

570

354

329

307

309

314

295

264

238

195

170

166

156

*134

108

92

82

75

73

72

72

71

54

38

38

38

-

5,947

198

11,800

Calendar year 1950: Max 391 Min 0.3 Mean 114 Ac-ft 82,790

Water year 1950-51 : Max 2,550 Min 0.4 Mean 338 Ac-ft 244,900

* Discharge measurement made on this day.

g Computed from staff-gage readings and record of gate operation.
SACRAMENTO RIVER BASIN 441

North Pork Cache Creek near Lower Lake, Calif.

Location. Lat 39°01', long. 122°33' , in NE£ sec. 31, T. 14 N. , R. 6 W., on right bank

SDtrrt 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 1951.

Gage. Water-stage recorder. Datum of gage is 1,035.60 ft above mean sea level prelimi-' 

nary adjustment of 1929.

Average discharge. 21 years, 165 cfs.

 Extremes.--Maximum discharge during year, 10,200 cfs Dec. 3 (gage height, 10.54 ft); minimumTO.l cfs Oct. 24, 25.

1930-51: Maximum discharge, 20,000 cfs Feb. 28, 1940 (gage height, 13.9 ft), by 

slope-area method and logarithmic plotting; no flow at times during year year 1930-36,

Remarks.--Records good except those for period of doubtful gage-height record, which are 

FaTr. Several small diversions above station.

Revision (water years). W 831: 1932(M).

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

Oct. 1 to Dec. 3 Dec. 4 to Sept. 3O

1.1

1.2

1.3

1.4

1.5

1.6

1.8

2.0

0

.2

.8

2.2

5.5

9.5

20

33

2.2

2.5

2.7

3.1

3.4

3.7

4.0

4.5

50

76

102

168

230

312

422

655

5.0

5.5

6.0

7.0

8.0

9.0

920

1,240

1,610

2,660

4,100

6,200

1.1

1.2

1.3

1.4 

1.6

0

.9

3.3

6.6

18

33

2.0 

2.4 

2.7 

3.3 

3.9 

4.5

55

109

157

306

510

770

5.0 

6.0 

7.0 

8.0 

9.0

1,030

1,700

2,650

4,100

6,200

Discharge, In cubic feet per second, water year October 1950 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.

0.4

.4

.4 

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2 

.2

*.2

.2

.2

.2 

.2

.2

.1

7T

5.2

66

175

168

435

T23

978.6

31.6

1,940

Nov.

82

70

55

45

38

33

29

26

24

22

21

2T

21

21

24

1.340 

371

548

546

482

482 

306

219

170

140

120

110

101

92

92

-

5,651

188

11,210

Dec.

*86

i55

5.270 

1,940

818

756

885

775

670

558

602

514

469

1,260

875

662 

546

463

404

341

300 

262

235

212

198

183

165

155

147

140

130

20,159

650

39,980

Jan.

124

120

*132 

130

116

109

105

103

TD3

170

295

319

230

194

217

256 

858

2,480

1,470

1,040

4^,240 

4,'246

1,820

1,180

865

688

586

503

445

394

348

23,880

770

47,370

Feb.

312

*288

316 

1,470

2,020

1,160

855

684

582

534

1,650

1,290

936

750

644

558 

503

463

407

387

377 

360

332,

300

279

265 248'

'245

-

_

-

18,218

651

36 , 130

Mar.

254

235

217 

320

496

496

598

*S4T

590

518

449

404

380

360

341

328 

303

273

254

238

227 

212

198

189

180,

174

166

157

152

147

142

9,540

308

18,920

Apr.

138

135

130 

*127

122

118

115

110

106

102

98

94

92

91

89

87 

87

85

84

81

78 

76

73

72

7?

74

72

103

124

94

2,931

97.7

5,810

May

*81

78

120 

436

501

297

217

178

154

137

1271

121

115

110

102

96 

91

87

85

78

74 

71

68

64

60

56

54

50

47

45

42

3,842

124

7,620

June

40

35

38 

37

35

35

33

32

30

29

*28

26

25

23

22

21 

20

19

18

17

17 

17

16

14

14

13

13

12

11

10

703

23.4

1,390

July

~9.0 10

8.6 

9.0

9.0

8.6

8.1

7.6

6.6

6.2

5.5

5.2

*5.2

4.8

4.5

4.5 

3.9

3.6

3.3

3.0

2.8 

2.8

2.5

2.5

2.5

2.3

2.3

2.0

2T5

2.3

2.0

152.5

4.92

302

Aug.

1.8

TT5

1.6 

1.3

1.6

1.3

1.3

1.1

.9

.9

.7

.7

.7

*.7

.7

.4 

.4

.4

.4

.4

.4 

.4

.4

.6

.6

.6

.6

.6

.6

.6

.6

25.1

0.81

50

Sept.

-T5 0.6

.4 

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3 

.3

*.2

75

.2

.2 

.2

.2

.2

.2

.2

.2

.2

.2

.2

-

8.8

0.29

17

Calendar year 1950 : Max 5,270 Mln O.I Mean 165 Ac-ft 119,200

Water year 1950-51 : Max 5,270 Mln 0.1 Mean 236 Ae-ft 170,700

Peak discharge (base. 2,600 efs). Nov. 16 (10:30 a.m.) 3,790 cfs (7.82 ft); Dec. 3 (3 p.m.) 10,200 

cfs 110.54 ft); Jan. 18 ^:3O a.m.) 3,630 cfs (7.72 ft); Jan. 21 (5-7 p.m.) 8,990 cfs (10.09 ft); 

Feb. 4 (8 p.m.) 4,030 cfs (7.96 ft); Feb. 11 (2 p.m.) 4,060 cfs (7.98 ft).

* Discharge measurement made on this day.

Mate. Doubtful gage-height record Oct. 1-25; discharge computed on basis of 1 discharge measurement and records for Putah Creek near Quenoc.
442 SACRAMENTO RIVER BASIN

Cache Creek near Capay, Calif.

Location. Lat 38°43'40", long. 122°06'15", in Canada de Capay Grant on right bank 1.8 

mij.es upstream from Clear Lake Water Co.'s diversion dam, 3.2 miles northwest of Capay, 

and 5.4 miles northwest of Esparto.

Drainage area. 1,052 sq mi.

Records available. May 1942 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 240 ft (from topographic map).

Average discharge. 9 years, 380 cfs.

Extremes. Maximum discharge during year, 14,200 cfs Dec. 3 (gage height, 14.09 ft): minimum, 3.5 cfs Oct. 14.

1942-51: Maximum discharge, 23,000 cfs Jan. 21, 1943 (gage height, 17.54 ft), from 

rating curve extended above 6,300 cfs on basis of peak flow at Yolo; minimum, 2.2 cfs 

Sept. 11, 12, 16, 1947.

Remarks. Records good. Plow regulated by Clear Lake beginning in 1915 (see p.439 ). 

diversions above station for irrigation.

Rating tables, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Many

Oct. 1 to Jan. 21 Jan. 22 to Sept. 30

1.3

1.5

1.6

1.7 

1.9

2.5

8.0

2.2 

2.8 

3.4

4.0

86

220

420

670

5.0 1,160

6.0

8.0

10:0

12.0

14.1

1,720

3,320

6,170

9,880

14,200

2.0 

2.5 

3.0

110

225

380

4.0

6.0

8.0

10.0

10.8

770

1,820

3,610

6,170

7,570

Discharge, In cubic feet per second, water year October 1950 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

Ao-ft

Oct.

4.8

4.8

4.5

4.5

4.5

4.5

4.2

4.2

*4.0

4.0

4.0

3.8

3.8

3.5

378

3.8

4.0

4.0

4.0

4.0

4.0

4.0 

4.5

5.0

5.3

7.1

11

57

196

388

296

1,060.6

34.2

2,100

Nov.

153

105

88

71

60

51

46

40

36

34

31

29 

29

27

EB

1,070

1,530

871

1,190

*952

1,050

635 

416

322

242

202

174

155

140

129

-

9,706

324

19,250

Dec.

123

117

5.450"

*5,460

1,700

1,090

1,570

1,250

1,110

870

885

860 

666

2,290

2,040

1,250

950 

765

648

554

480

420 

371

332

305

279

254

240

248

242

240

33,069

1,067

65,590

Jan.

237

234

226

226

217

202

189

182

176

TS?

319

484 

350

276

248

299

547 

2,550

2,520

1,520

1,980

*7,400 

3,420

*3,790

3,370

3,280

3,110

2,920

2,790

2,660

2,570

48,474

1,564

96,150

Feb.

2,490

792

557

633

3,030

3,590

3,400

3,070

2,890

2,750

3,630

4,740 

3,320

3,000

2,860

1,310

797 

730

641

585

589

553 

529

474

440

418

404

394

_

_

-

48,616

1,736

96,430

Mar.

464

464

387

418

797

1,470

3,390

3,140

2,100

962

705

625 

*565

529

497

471

446 

734

820

810

792

774 

400

612

717

717

414

300

264

249

237

25,270

815

50,120

Apr.

231

*222

218

212

205

198

a!93

188

186

183

181

169 

*162

171

151

160

155 

176

234

264

345

422 

493

557

597

605

641

677

545

370

9,111

304

18,070

May

315

373

414

356

757

485

345

279

273

468

489 

501

493

485

474

561 

581

589

585

609

633 

653

641

625

617

585

569

565

561

553

15,874

512

31,490

June

*573

581

593

601

617

693

629

617

609

605

601

601 

605

605

617

637

SIS" 649 

641

641

637

633 

621

617

609

625

601

581

561

541

18,326

611

36,350

July

537

*533

501

501

501

533

537

501

493

478

497

525 

525

521

525

497

482 

493

509

529

521

521 

517

505

513

549

557

561

565

5TT

561

16,149

521

32,030

Aug.

561

55T

509

501

485

482

478

474

493

501

464

432

408

4T5

429

440

440 

436

436

444

444

464 

446

457

457

478

474

457

436

422

422

14,322

462

28', 410

Sept.

398

384

380

380

366

348

318

303

303

300

*279 

258

231

193

171

167 

155

138

118

97

89 

81

79

72

*72

69

67

56

52

6,308

210

12,510

Calendar year 1950: Max 5,460 Mln 3.5 Mean 361 Ac-ft 261,500

Water year 1950-51: Max 7,400 Mln 3.5 Mean 675 Ac-ft 488,500

Peak discharge (base. 5,500 cfs).--Dec. 3 (8:30 p.m.) 14,200 cfs (14.09 ft); Jan. 18 (4:30 p.m.) 

4,080 cfs 18.62 ft); Jan. Z2 (Z:30 a.m.) 10,100 cfs (12.10 ft); Jan. 26 (5:30 a.m.) 4,500 cfs (8.8C 

ft); Feb. 6 (4:30 a.m.) 4,950 cfs (9.16 ft); Feb. 11 (10 p.m.) 8,280 cfs (11.18 ft); Mar. 7 (3:30 

a.m.) 4,620 cfs (8.90 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge interpolated.
SACRAMENTO RIVER BASIH 443 

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 Yolo, Yolo County.

Drainage area.--1,137 sq mi.

Records available. January 1903 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 60 ft (from topographic map). Prior to 

sjmmer of 1930, staff gage at datum 1.97 ft higher.

Average discharge. 48 years, 493 cfs.

Extremes.--Maximum discharge during year, 11,700 cfs Dec. 4 (gage height, 17.63 ft); no 

Flow for several months.

1903-51: Maximum discharge, 28,700 cfs plus overflow on right bank estimated as 

10,000 cfs Feb. 28, 1940 (gage height, 29.0 ft); no flow at times each year. 

Maximum stage observed, 29.8 ft Feb. 2, 1915, staff-gage reading.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

Many diversions above station for irrigation. Flow regulated since 1915 by Clear Lake 

(see p. 439).

Revisions. W 1121: Drainage area.

1.5 

2.0

Rating tables, water year 1950-51 (gage height, In feet, and discharge, 

in cubic feet per second)

Oct. 1 to Dec. 13 14 to Feb. 12 Feb. 13 to Sept. 30

262

465

3.0

5.0

7.0

10.0

13.0

970

2,180

3,500

5,600

7,800

2.0 465

3.0 970

5.0 2,280

7.0 3,780

9.0 5,380

12.0 7,780

0.8 0

.9 1.0

1.0 9.0

1.5 132

1.8 222

2.2 390

3.0 785

4.0 1,470

6.0 2,980

8.0 4,580

Discharge, in cubic feet per second, water year October 1950 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.

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

il

43

1.4

85

Nov.

138

33

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.450

692

967

*646

874

600

370

263

191

138

110

89

75

66

-

6,702

223

13,290

Dec.

50

48

828

*7.480

2,030

1,060

1,340

*1,210

1,050

830

718

835

661

1,930

2,500

1,400

954

772

680

605

542

492

450

400

370

340

310

280

270

290

280

31,005

1,000

61,500

Jan.

270

270

260

250

250

240

220

210

200

200

300

500

400

350

300

270

500

1,000

3,000

2,000

2,200

*7.500

4,140

*3,860

3,400

3,510

3,390

3,200

3,070

2,950

2,860

51,070

1,647

101,300

Feb.

2,790

1,680

866

810

2,580

3,710

3,720

3,440

3,250

3,110

3,070

6.050

4,150

3,650

3,440

2,220

1,300

900

750

650

650

600

580

540

510

480

440

430

_

_

-

56,346

2,012

111,800

Mar.

507

489

440

408

640

*1,080

3,100

3.590

2,700

1,360

805

686

620

566

550

498

476

558

755

761

749

757

561

480

660

670

552

545

298

270

254

25,925

856

51,420

Apr.

258

226

215

208

201

169

157

110

84

64

44

16

*0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

1,712

57.1

5,400

May

(*)

0

0

0

June

0

0

0

July

(*)

0

0

0

Aug.

0

0

6

Sept.

(*)

-

0

0

0

Calendar year 1950: Max 7,480 Mln 0 Mean 194 Ac-ft 140,200

Water year 1950-51: Max 7,500 Mln 0 Mean 473 Ac-ft 342,800

Peak discharge (base. 2.200 efs).--Nov. 17 (7 a.m.) 2,740 cfs (5.85 ft); Dec. 4 (6 a.m.) 11,700 cfs 

(17.65 ft); Dec. 14 (12 p.m.) 5,590 cfs (6.49 ft); Jan. 19 (time and discharge unknown); Jan. 22 

(time unknown) 10,500 cfs (15.24 ft); Feb. 5 (3:30 p.m.) 4,400 cfs (7.77 ft); Feb. 12 (6 a.m.) 8,450 

cfs (12.84 ft); Mar. 7 (10 a.m.) 4,210 cfs (7.54 ft).

* Discharge measurement made on this day.

Note. No gage-height record Dec. 23 to Jan. 22, Feb. 17-28; discharge estimated on basis of records for station near Capay.
444 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 1951 in reports of Geological Survey. 1939- 

bl in reports of Division of Water Resources, Department of Public Works, State of 

California.

Gage.--Water-stage recorder. Datum of gage is datum of Corps of Engineers. Auxiliary 

water-stage recorder (datum set to datum of Corps of Engineers) 6 miles downstream. 

Second auxiliary water-stage recorder (local datum) 7 miles downstream is used during 

irrigation season.

Average discharge. 11 years, 3,557 cfs.

Extremes. Ifexlmum discharge during year, 133,000 cfs Nov. 22 (gage height, 29.18 ft); 

minimum, 11 cfs Nov. 13.

1940-51: ffeximum discharge, 272,000 cfs Feb. 8, 1942 (gage height, 32.00 ft); minimum, 2.9 cfs Nov. 9, 1949.

Remarks.--Records fair. Flow is that from Cache Creek and Knights Landing Ridge Cut plus 

nood-water passing over Fremont weir; during summer, flow consists largely of return 

water from irrigation.

Cooperation. Records collected and prepared in cooperation with Division of Water Resources, Department of Public Works, State of California.

Discharge, in cubic feet per second, water year October 1950 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.

21 *T8-

16

16

16

16

16

15

15

15

15

15

15

15 

15

15

14

14

14

14

14

14

14

14

14

13

TS

13

13

13

13

458

14.8

908

Nov.

13

13

1*

16

19

20

18

16

14

13

12

12

11

TZ 

12

16

18

120

1,000

13,300

74, 500

119,000

65,700

29,700

12,100

5,420

2,670

1,260

874

727

326,620

10,890

647,800

Dec.

600

428

IST

4,120

*36,600

42,500

34,300

44, 200

62,900

65,800

44, 600

32,200

26,800

22,900 

34,900

55,100

51,400

42,800

35,400

29 , 700

24, 700

19,900

14,300

8,830

5,200

2,430

1,140

866

740

728

682

747,203

24, 100

tl,482

Jan.

634

600

579

579

573

634

676

612

558

557

658

708

938

1,120 

1,070

960

888

888

2,810

4,890

6,110

6,480

38,600

44,400

40,400

33,300

25,700

18,400

12,200

8,350

5,690

260,542

8,405

516,800

Feb.

4,660

4,030

2,490

1,530

1,500

3,790

11,200

*21,300

20,900

19,400

17,600

20, 500

24,700

26,100 

25,600

23,800

20,000

17,800

15,700

14,000

12,200

10,500

7,750

5,610

3,840

1,710

1,200

978

-

_

-

340,388

12,160

675,100

Mar.

952

947

924

893

857

1,020

1,890

3,670

5,920

3,060

1,750

1,200

1,010

911 

834

794

728

665

732

924

929

924

906

736

668

772

790

672

531

453

412

35,474

1,144

70,360

Apr.

412

38T

340

275

250

225

193

139

115

125

101

79

67

56 

49

44

40

36

34

18

22

25

26

30

34

34

42

47

57

67

-

3,364

112

6,670

May

78

88

96

109

120

110

11-8

126

T5S

115

118

125

121

108 

84

66

66

69

69

69

67

66

64

59

*52

50

53

50

50

47

57J

2,589

83.5

5,140

June

50

50

49

4?

50

52

53

54

59

70

76

79

82

W 

74

70

69

66

62

63

60

58

57

61

61

57

*57

54

51

51

-

1,824

60.8

3,620

July

52

57

56

55

55

55

55

56

56

60

66

65

64

67 

J39_

68

65

61

58

54

51

3J

55

55

55

57

57

58

59

59

58

1,812

58.5

3,590

Aug.

58

58

*58

58

60

64

70

70

68

67

68

69

69

70 

73

75

78

81

» 80

2,254

72.7

4,470

Sept.

> 100

» 70

-

2,550

85.0

5,060

Calendar year 1950: Max 119,000 Mln 8.1 Mean 3,400 Ac-ft 2,462,000

Water year 1950-51: Max 119,000 Mln 11 Mean 4,726 Ac-ft 3,422,000

Discharge measurement made on this day. 

t Expressed in thousands.

Note. No gage-height record Oct. 4-31, Aug. 19 to Sept. 30; discharge estimated on basis of trend 

f record at Junction with Sacramento bypass.
SACRAMENTO RIVER BASIN 445 

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, and 3.2 miles 

downstream from highway bridge at Guenoc.

Drainage area. 112 sq mi.

Records available. February 1904 to July 1906, July 1930 to September 1951.

Gage. Water-stage recorder. Datum of gage is 913.4 ft above mean sea level (river-proflie 

survey). February 1904 to July 1906, staff gage a quarter of a mile upstream at different datum.

Average discharge.--21 years (1930-51), 182 cfs.

Extremes. Maximum discharge during year, 12,700 cfs Dec. 3 (gage height, 15.98 ft), from 

rating curve extended above 1,700 cfs; minimum, 1.6 cfs Sept. 25.

1904-6, 1930-51: Maximum discharge observed, 24,600 cfs Mar. 10, 1904 (gage height, 

20.1 ft, site and datum then in use), from rating curve extended above 14,500 cfs; minimum, 0.6 cfs Sept. 30, Oct. 4, 1932.

Remarks.--Records good except those for periods of no gage-height record, which are fair. 

SWaTl diversions above station.

Rating tables, water year 195O-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to May 4 May 5 to Sept. 3O

1.2

1.3

1.4

1.5

1.6 

1.8

2.1 

3.1

2.1 

2.5 

3.2 

4.0 

5.0 

6.0

43

90

212

404

724

1,160

1,710

3,340

5,500

6,860

1.3

1.4

1.5

1.4 

2.0 

3.0 

5.0

1.6 

1.8 

2.0 

2.5

Note. Same as preceding 

table above 2.5 ft.

Discharge, In cubic feet per second, water year October 195O 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

Ao-ft

Oct.

2.8

2.6

2.2.

2.5

2.7

2.8

2.6

2.8

2.6

2.6

2.6 

2.5

2. -5

2.6

2.7

2.8

*2.9

2.8

2.6

2.6

2.5

2.7

2.8

2.9

3.1

54

126

503

621

575

149

2,094.8

67.6

4,150

Nov.

90

60

40

30

25

20

20

15

12

10

10 

10

10

15

50

4,500

700

2,500

1,000

2,500

1,100

800

600

450

350

300

250

200

170

150

-

15,987

533

31,710

Dec.

*130

177

6,810

1,890

828

1,080

961

1,O6O

925

635

999 

628

765

1,980

1,900

974

700

600

5OO

450

400

350

310

280

250

230

210

190

180

160

150

26,702

861

52,960

Jan.

140

140

*1SO

158

135

127

119

114

113

278-

472 

340

248

210

287

319

1,320

2.560

1,340

800

2,450

2,070

1,010

724

568

469

382

343

303

269 246

18,234

588

36,170

Feb.

227

212

*212

629

1,030

520

398

335

294

289

1.220 

869

558

446

382

327

298

280

248

241

244

229

220

197

183

175

167 175"

_

_

~

10,605

379

21,030

Mar.

199

177

162

305

429

883

*762

530

625

443

365 

315

280

252

231

212

195

177

167

160

150

142

135

130

124

119

113

108

106

101

100

8,197

264

16,260

Apr.

96

93

*91

89

86

84

82

77

74

71

70 

69

66

64

63

63

65

64

62

61

60

57

56

56

60

57

55

94

87

69

-

2,141

71.4

4,250

May

*63

63

117

468

29£

171

132

112

98

89

82 

79

74

70

64

61

57

55

52

50

48

46

45

43

40

38

35

33

32

31

2£

2,675

86.3

5,310

June

28

27

25

24

24

24

24

23

22

20

19 

*18

17

17

16

16

15

14

13

13

13

13

12

12

12

10

10

9.6

9.2

8.8

-

508.6

17.0

1,010

July

8.4

8.0

7.6

7.6

7.3

7.3

7.3

7.3

6.7

7.0

7.0 

6.7

6.7

6.1

6.4

5.8

*5.5

6.1

6.1

5.8

5.5

5.5

5.2

5.2

5.0

5.0

5.0

5.0

5.2

5.0

5.0

193.3

6.24

383

Aug.

4.7

4.4

4.4

4.4

4.7

4.4

4.2

3.8

3.8

3.8

4.4 

4.4

3.8

*3.5

3.5

3.6

3.2

3.0

3.4

3.2

3.2

3.4

3.0

3.0

3.5

3.5

3.0

2.8

2.8

2.8

3.0

112.6

3.63

223

Sept.

3.4

3T

3.0

2.8

2.6

2.6

2.4

2.4

2.8

2.6

2.4 

2.4

2.2

2.2

2.2

2.6

2.6

*2.4

2.4

2.4

2.2

2.2

2.2

2.4

1.8

2.4

2.4

2.4

2.4

2.4

-

74.4

2.48

148

Calendar year 1950: Max 6,81O Mln 1.9 Mean 239 Ao-ft 173,200

Water year 1950-51: Max 6,81O Mln 1.8 Mean 24O Ao-ft 173,600

Peak discharge (base. 5.OOP cfs). Nov. 16 (time unknown) 6,100 cfs (11.5O ft); Dec. 3 (3 p.m.) 

12,700 cfs (15798 ft)j Jan. 21 (6 p.m.) 5,340 cfs (1O.87 ft).

* Discharge measurement made on this day.

Note. No gage-height record Nov. 1 to Dec. 1 and Dec. 17 to Jan. 3; discharge estimated on basis 

of records for Kelsey Creek near Kelseyville.
446 SACRAMENTO RIVER BASIN

Putah Creek near Winters, Calif.

Location.--Lat 38°31', long. 122°05', in NEij sec. 28, T. 8 N., R. 2 W., on left bank 6 ndles 

west of Winters and 8 miles downstream from Capell Creek.

Drainage area.--614 sq mi.

Records available.--September 1905 to September 1951.

Gage.--water-stage recorder. Datura of gage is 160.75 ft above mean sea level (river-profile 

survey). Prior to June 1930, staff gage at site 6 miles downstream at different datum. 

June 1930 to Feb. 29, 1940, at datum about 1 ft higher.

Average discharge.--21 years (1930-51), 442 cfs.

Extremes. Maximum discharge during year, 35,300 cfs Dec. 3 (gage height, 24.32 ft); minimum not determined, but probably less than 1 cfs on several days in August and September.

1905-51: Maximum discharge, 70,500 cfs Feb. 27, 1940 (gage height, 30.5 ft, present 

datum), from rating curve extended above 28,000 cfs by slope-area computations; no flow 

at present site, Sept. 6-15, 1950; no flow at former site at times in many years.

Remarks. Records good except those for period of indefinite stage-discharge relation, and 

those below 20 cfs, which are fair. Several pumps above station divert water for irrigation.

Revisions (water years).--W 901: 1937-38(M).

Rating tables, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Oct. 1-29, Nov. 8-15, Dec. 3, 4)

Oct. 1 to Nov. 16 17 to Sept. 30

3.2

3.4

3.5 

3.7

1.3 

2.9 

3.9 

8.2

4.4 

5.0 

6.0 

7.0

230

460

9.0

11.0

13.0

15.0

1,260

2,750

5,310

9,100

3.4

3.5

3.6 

3.8

1.0 

2.0 

3.4 

7.4

4.0 

4.3 

4.6 

5.0

5.5 

6.0 

7.0

144

224

460

17.0 13,900 Note. Same as preceding table above 

7.0 ft.

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7 

8

9

10

11

12

13

14

15

IS

17

18 

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

3.4

3.3

3.2

3.1

3.3

3.1

3.0 

2.6

*2.0

1.6

1.8

2.3

2.4

2.2

1.9

1.9

2.7

3.3 

3.6

3.5

3.8

3.9

4.4

5.4

9.4

19

27

24

163

415" 673

1,406.1

45.4

2,790

Nov.

170

102

69

51

39

33

28 

24

21

19

18

18

19

19

19

2,630

*2,360

4,680 

3,910

2,080

3,280

1,520

853

570

420

328

272

242

217

208

24,219

807

48,040

Dec.

*197

179

15,800

*9,260

2,400

1,670

3,290 

2,280

2,520

1,610

1,650

1,680 1,160

6,130

7,040

3,360

2,040

1,500 

1,210

1,020

867

748

657

583

533

488

443

432

381

360

333

69,821

2,252

138,500

Jan.

3 09

291

347

424

338

295

274 

262

254

410

948

1,120

693

533

488

609

1,360

5.510 

4,490

2,230

2,280

8,420

3,140

2,090

1,560

1,280

1,090

952

842

748

660

44,247

1,427

87,760

Feb.

*609

561

527

539

2,140

1,380

988 

813

711

646

808

2,870

1,340

1,020

884

768

686

671 

596

542

577

545

542

494

452

421

407

394

_

_

-

22,931

819

45,480

Mar.

606

521

432

480

1,180

1,600

2,650 

1,530

1,380

1,170

952

825

*745

675

599

548

509

460 

424

404

383

362

342

323

309

293

280

262

258

246

258

20,986

677

41 , 630

Apr.

228

222

219

211

206

200

193 

188

179

174

166

155

*151

148

145

140

157

141 

157

135

127

124

117

*115

TI8

122

117

154

217

182

-

4,846

162

9,610

May

144

150

151

262

700

452

295 

255

195

171

152

141

156

150

121

111

105

101 

94

95

85

75

*73

71

68

64

58

54

50

47

44

4,586

148

9,100

June

*58

57

36

35

32

30

27 

27

28

25

21

22

18

14

11

9.4

8.8

9.6 

10

9.6

9.9

9.1

8.5

6.7

2.7

1.7

6.2

8.2

7.4

7.0

-

515.8

17.2

1,020

July

6.5

*6.7

8.0

7.2

6.7

. e6

190.9

6.16

379

Aug.

e5

93

5

184

Sept.

(*)

e2.5

-

75.0

2.5

149

Calendar year 1950; Max 13,800 Mln O Mean 510 Ac-ft 369,400

Water year 1950-51: Max 13,800 Min - Mean 531 Ac-ft 384,600

Peak discharge (base, 6.600 cfs). --Nov. 16 (7 p.m.) 10.100 efs (15.45 ft); Nov. 18 (10 p.m.) 7,580 

fs (14.24 ft); Dec. 3 (7 p.m.) 55,500 cfs (24.32 ft); Dec. 14 (12 ra. ) 10, 

18, (7 p.m.) 7,050 cfs (13.97 ft); Jan. 22 (5 a.m.) 12,200 cfs (16.36 ft).

. . 

(12 ra. ) 10,200 cfs (15.49 ft); Jan.

Discharge measurement made on this day. 

e Stage-discharge relation indefinite; discharge estimated on basis of 1 discharge measurement, 

trend of recorder graph, and unpublished records for station near Gamble Rajich.
SACRAMENTO RIVER BASIN 447

Putah Creek near Davls, Calif.

Location (revised). Lat 38°31'24", long. 121°47'10", in SEij sec. 19, T. 8 N., R. 2 E., on 

right banlc in LOS Putos grant, 3.3 miles southwest of Davls.

Drainage area. 658 sq ml.

Records available. May 1948 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 45 ft (from topographic map). Prior to 

 Dec. 16, 1948, at datum 2.00 ft higher.

Extremes.--Maximum discharge during year, 29,300 cfs Dec. 3 (gage height, 20.88 ft), from 

rating curve extended above 9,000 cfs on basis of slope-area determination of peak flow; 

no flow for several months.

1948-51: Maximum discharge, that of Dec. 3, 1950; no flow for several months each 

year.

Remarks. Records good below 10,000 cfs, fair above. Several pumps above station divert 

water for irrigation.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

Oct. 31 to Dec. 3 Dec. 4 to May 28 May 29 to Sept. 30

2.0 

6.0

26

64

143

4.0

4.5

5.0

6.0

8.0

10.0

10.7

330

599

940

1,710

3,660

6,320

7,460

0

.7

2.7

7.0

14

22

45

3.1

3.4

4.0

5.0

7.0

9.0

11.0

13.6

165

420

985

2,630

4,940

8,020

12,9OO

1.73

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

0

.1

.2

.3

.6

1.2

2.2

4.8

9.0

Discharge, In cubic feet per second, water year October 1950 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.

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

612

612

19.7

1,210

Nov.

215

111

64

40

22

13

11 

8.4

2.4

0

0

0

0

0

0

240

*2y690

3,330

4,330

1,690

3,140

1,730

970

628

450

349

282

241

214

191

-

20,961.8

699

41,580

Dec.

*174

166

*7,430

*12.BOO

2,880

1,710

3,070 

2,260

2,370

1,740

1,390

1,820

1,230

3,920

5,660

3,960

2,310

1,710

1,320

1,090

933

807

713

636

570

525

475

440

411

392

365

65,277

2,106

129,500

Jan.

342

324

319

430

383

324

297

280

267

324

720

1,160

724

560

515

555

855

3,910

3,990

2,440

1,880

6,840

3,590

2,370

1,750

1,370

1,150

978

868

765

674

40,954

1,321

81,230

Feb.

*620

570

530

520

1,640

1,470

959

777

686

614

625

2,320

1,390

1,020

855

753

669

636

598

545

545

540

520

500

465

435

415

402

_

-

21,619

772

42,880

Mar.

520

545

470

430

963

1,170

2,700 

1,630

1,350

1,260

966

*819

730

658

598

550

505

475

440

415

392

379

360

333

315

297

280

267

255

242

230

20,544

663

40,750

Apr.

222

*210

206

198

191

184

176 

172

162

152

145

135

126

124

121

118

112

112

112

110

102

99

94

*90

90

92

92

97

155

187

-

4,186

140

8,300

May

*145

121

124

187

510

530

342 

255

206

187

198

169

142

132

104

92

87

80

72

69

69

58

*51

31

25

12

1.5

.4

.2

0

0

4,000.1

129

7,930

June

0

0

1.0

7.2

6.1

2.6

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-

18.1

0.60

36

July

0

8.7

*272

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

0

0

10.9

0.35

22

Aug.

0

0

0

Sept.

0

0

0

Calendar year 1950: Max 12,80O Mln 0 Mean 462 Ac-ft 334,700

Water year 1950-51: Max 12,800 Mln 0 Mean 488 Ac-ft 353,400

Pesik discharge (base, 5,000 cfs).--Nov. 19 (2 a.m.) 6,200 cfs (9.92 ft); Dec. 3 (11:30 p.m.) 

29,300 cfs (20.88 ft); Dec. 14 (6 p.m.) 7,540 cfs (10.72 ft); Jan. 18 (12 P.m.) 5,360 cfs (9:30 ft); 

Jan. 22 (7:30 a.m.) 9,440 cfs (11.81 ft).

* Discharge measurement made on this day.
448 KAPA RIVER BASIN

Napa River near St. Helena, Calif.

Location. Lat 38°29'40", long. 122°25 I 50", in SE-f 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.--83.5 sq mi.

Records available.--November 1929 to September 1932, November 1939 to September 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 200 ft (from topographic map).

Average discharge.--13 years (1930-32, 1940-51), 75.2 cfs. Median of yearly mean discharges, 57 cfs.

Extremes.--Maximum discharge during year, 7,680 cfs Dec. 3 (gage height, 11.9 ft); no flow 

parT~of days July to September.

1929-32, 1939-51: Maximum discharge, 11,800 cfs Feb. 6, 1942 (gage height, 14.6 ft); 

no flow Sept. 23 to Oct. 6, 1947, Oct. 14, 1949.

Remarks.--Records good. Small diversions above station for irrigation.

Rating tables, water year 1950-51 (gage height, in feet, and discharge 

in cubic feet per second)

1.0 

2.6 

5.5

Oct. 1 to De

1.1 1

1.3 3

1.6 7

2.0

3.0 

4.0

2.5

141

268

430

900

3,640

Dec. 3 to Sept. 30

0.9 5.7

1.0 10

1.3 35

1.6 32

2.2 

3.0 

4.0 

6.0

214

475

94,0

2,220

Discharge, In cubic feet per second, water year October 195O 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.

0.2

.4

.3

.7

.8

.8

.8

.8

.7

.7

.5

.5

.4

.7

.7

* . 7

.7

.6

.4

.2

.3

.2

.3

.6

.7

1.6

2.3

2.2

2.1

40

8.6

70.5

2.27

140

Nov.

*3.6

1.8

1.0

.9

.8

.8

.8

.8

.8

+L

.1

.7

.8

1.1

1.1

351

245

1,060

504

549

657

234

129

86

67

55

47

42

39

*39

-

4,120.4

137

8,170

Dec.

35

45

5.520

1,100

*451

*541

621

656

596

372

433

*324

319

1,220

1,060

547

379

282

220

181

153

136

121

109

99

90

82

73

69

66

61

13,961

450

27,690

Jan.

56

*58

158

113

90

78

73

69

68

209

399

279

196

160

186

180

845

1.780

882

523

1,330

1,560

708

475

348

273

220

186

160

142

125

11,929

385

23,660

Feb.

109

99

97

314

616

309

236

201

174

169

316

309

222

183

162

144

136

129

111

107

119

115

109

92

84

80

21

82

_

_

-

4,901

175

9,720

Mar.

88

77

69

179

212

409

368

262

*259

196

164

165

136

119

109

99

90

78

81

71

64

59

54

51

48

45

42

39

38

36

33

3,740

121

7,420

Apr.

32

32

32

31

*30

29

29

29

28

27

25

25

23

23

22

22

22

22

19

19

18

18

18

15

18

17

17

45

26

*21

-

734

24.5

1,460

May

20

20

29

71

64

40

32

27

24

22

21

21

20

20

18

18

18

18

16

15

14

15

15

12

12

13

12

11

9.3

8.3

10

665.6

21.5

1,320

June

9.3

7.3

*7.3

8.8

8.8

8.8

11

9.3

6.9

7.8

9.3

7.3

6.1

5.6

5.4

6.1

5.6

4.9

5.0

4.4

4.4

3.9

5.7

5.3

5.0

5.3

3.3

2.1

3.9

3.1

-

187.0

6.23

371

July

4.4

4.4

5.0

4.7

2.1

2.6

3.6

2.8

1.6

1.6

7.4

6.9

3.4

1.5

1.2

*2.1

2.1

1.7

1.2

1.6

2.0

2.2

2.8

2.0

1.7

1.6

1.8

1.7

3.2

1.9

2.6

85.4

2.75

169

Aug.

2.4

1.2

1.2

2.2

1.9

1.1

2.2

1.4

2.4

2.2

2.2

1.3

*1.3

.4

2.1

.7

.8

.6

.6

.5

.6

1.1

1.2

1.5

.8

1.1

.6

.8

1.6

1.3

1.3

40.6

1.31

81

Sept.

0.9

.8

.9

1.9

2.1

1.9

1.0

, a. 7

(*)

1.2

1.2

1.1

1.2

.7

.4

.3

.5

.4

.4

.9

1.0

1.0

-

26.8

0.89

53

Calendar year 1950: Max 3,520 Hln 0.2 Mean 108 Ac-ft 78,350

Water year 1950-51: Max 3,520 Mln 0.2 Mean 111 Ac-ft 80,250

Peak discharge (base, 2.300 cfs).--Dec. 3 (4 p.m.) 7,680 cfs (11.9 ft); Jan. 18 (5:30 a.m.) 2,420 

cfs (6.27 ft); Jan. 21 (8 p.m.) 3,070 cfs (7.10 ft).

a No gage-height record; discharge estimated on basis of 1 discharge measurement and recorded range 

in stage.
NAPA RIVER BASIN 449

Conn Creek near St. Helena, Calif.

Location. Lat 38°29'10", long. 122°24'10", in NWv sec. 3, T. 7 N., R. 5 ¥., on right bank

 OT2~~mile upstream from highway bridge, 1.6 miles downstream from Conn Valley Reservoir, 

4 miles southeast of St. Helena, and 6 miles upstream from mouth.

Drainage area. 52.0 sq mi.

Records available. November 1929 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 180 ft (from topographic map).

Average discharge.--15 years (1930-45), prior to construction of Conn Valley Dam, 34.7 

els.

Extremes. Maximum discharge during year, 1,320 cfs Dec. 3 (gage height, 6.38 ft); no flow 

(Turing periods in several months.

1929-51: Maximum discharge, 7,700 cfs Feb. 27, 1940 (gage height, 11.80 ft), from 

rating curve extended above 6,000 cfs; no flow during periods in each year.

Remarks. Records fair. Plow regulated by Conn Valley Reservoir beginning in December

 1935 (capacity, 31,000 acre-ft); contents, 26,700 acre-ft Sept. 30, 1950, and 26,500 

acre-ft Sept. 30, 1951. Diversion from Conn Valley Reservoir for water supply of city 

of Napa amounted to 3,760 acre-ft for the water year 1951.

Rating table, water year 1950-51 (gage height, in feet,

and discharge, In cubic feet per second)

(Shifting-control method used Dec. 28 to Jan. 11,

Mar. 22 to Apr. 24)

.3 0

.4 .2

.5 1.0

.6 2.4

.7 4.6

1.8 8

2.0 19

2.5 60

3.0 117

3.5 199

4.0 310

4.5 450

6.0 1,110

Discharge, in cubic feet per second, water year October 1950 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.

0

T.2

2.1

2.1

2.5

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.1

2.0

* . 6

.1

0

0

0

0

0

0

0

0

0

o

0

0

0

33.2

1.07

66

Nov.

0

T;

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

3.2

T75

1.0

1.0

.7

.4

.2

.1

0

0

0

0

0

8.6

0.29

17

Dec.

0

T;

473

797 '2~96

*207

295

253

223

164

142

*127

107

437

552

330

211

149

113

91

74

63

55

47

43

40

35

32

28

28

27

5,439

175

10,790

Jan.

23

*23

37

36

30

25

21

20

18

40

76

89

67

53

50

48

74

280

303

209

316

835

429

262

180

139

112

93

81

69

60

4,098

132

8,130

Feb.

54

49

*46

56

154

102

80

67

59

56

74

98

80

67

61

51

45

45

39

36

39

40

59

34

50

28

25ST:

_

-

1,565

55.9

5,100

Mar.

44

58

50

27

70

100

150

T3T3

*117

95

77

65

56

50

45

40

57

51

28

26

25

25

22

21

20

18

16

12

12

12

11

1,446

46.6

2,870

Apr.

9.5

10

11

12

*12

*9.5

9.0

9.5

9.5

10

7.5

6.0

5.6

4.9

4.9

4.2

5.9

4.9

5.6

4.9

4.4

6.0

2.4

1.0

T7E

2.0

2.5

18

T7

*10

-

218.9

7.50

454

May

6.6

6.0

14

25 "215

17

12

9.5

7.5

5.6

5.7

5.5

12

5.6

.6

2.6

1.5

0

T;

1.6

.8

0

0

0

0

2.5

2.6

2.5

.2

1.5

.2

161.6

5.21

521

June

0

.7

3.2

.7

.4

0

0

0

0

.2

1.4

0

.7

1.0

.5

.4

1.4

2.5

.8

1.0

1.1

1.1

2.5

4.4

5.6

6.6

7.0 T75

7.0

7.0

-

65.6

2.12

126

July

7.0

6.6

.5

.5

.0

.0

.5

.5

.3

.7

8.0

7.7

8.0

8.0

9.0

*8.5

8.0

7.5

7.0

6.6

6.0

6.5

5.6

4.6

4.6

4.4

4.6

4.2

5.5

3.7

575

205.1

6.55

405

Aug.

4.2

4.2

4.2

4.2

5.6

1.1

0

T;

o

.3

7.0

675

6.6

5.5

5.5

3.5

3.5

5.3

5.3

*5.5

3.1

2.8

2.8

2.8

2.6

2.6

2.4

2.1

1.6

1.4

1.4

93.5

3.02

185

Sept.

1.5

2.2

 27S 4.2

1.0

.7

0

T;

1.1

3.9

2.6

.9

.8

.8

1.6

3.2

* .6

.4

.2

.1

0

0

0

0

0

0

0

o

0

0-

28.4

0.95

56

Calendar year 1950: Max 797 Min 0 Mean 18.2 Ac-ft 13,170

Water year 1950-51: Max 835 Min 0 Mean 36.6 Ac-ft 26,500

Discharge measurement made on this day.
450 PETALUMA CREEK BASIN

Petaluma Creek near Petaluma, Calif.

Location.--Lat 38°15'40", long. 122°39'35", on right bank in Roblar De La Miseria Grant, 

YU rt 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 1951.

Gage.--Water-stage recorder and concrete control. Altitude of gage is 40 ft (from topographic map).

Extremes.--Maximum discharge during year, 1,360 cfs Dec. 3 (gage height, 12.55 ft); no flow 

 for several months.

1948-51: Maximum discharge, that of Dec. 3, 1950; no flow for several months each 

year.

Remarks.--Records good. No storage or diversion above station.

1.0

1.1

1.2

1.3

Rating tables, water year 1950-51 (gage height, in feet, and discharge

in cubic feet per second) 

(Shifting-control method used Nov. 15-18, Apr. 19 to May 8)

Oct. 1 to Dec. 3

1.5 3.8

1.8 10

2.5 32

4.0

5.0

8.0

10.0

105

190

573

890

1.9

2.0

1.1 

2.3

Dee. 3 to Sept. 30

8.2

22

50

77

5.0 

7.0 

9.0

147

374

560

Discharge, in cubic feet per second, water year October 1950 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.

(*)

0

0

0

Nov.

0

O

0

0

0

0

0

0

0

0

0

0

*0

0

0

.5

.7

224

193

170

185

59

30

20

14

11

9.3

8.4

7.4

11

-

943.3

31.4

1,870

Dec.

17

18

858

396

66

200

*476

236

145

50

*83

55

68

620

310

76

42

30

23

19

16

14

12

9.9

8.2

7.1

6.0

5.0

4.8

5.0

5.0

3,881.0

125

7,700

Jan.

3.6

2.9

14

12

8.2

6.0

4.8

5.0

*8.0

170

137

56

24

17

50

66

232

307

151

52

244

644

83

43

31

24

21

18

15

*12

10

2,471.5

79.7

4,900

Feb.

8.7

7.8

7.8

223

562

642

33

24

19

28

112

77

26

19

15

12

10

10

8.0

7.8

11

13

12

7.8

6.4

5.8

6.2

17

_

_

-

1,931.3

69.0

3,830

Mar.

19

9.6

6.0

70

83

*115

105

34

34

18

12

9.4

8.2

6.9

5.8

5.4

4.6

3.8

3.4

3.2

3.1

2.8

2.6

2.3

2.2

1.9

1.8

1.5

1.4

1.3

1.2

578.4

18.7

1,150

Apr.

.1

.1

* .1

.1

.1

.1

.1

.0

.0

.7

.6

.5

.5

.4

.4

.4

.4

.5

.4

.2

.2

.1

0

0

0

0

0

.2

~S4.9

-

20.9

0.70

41

May

0.1

o

.2

5.4

4.8

2.3

.6

*0

0

0

0

0

0

0

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

13.4

0.43

27

June

(*)

-

0

0

0

July

(*)

0

0

0

Aug.

(*)

0

0

0

Sept.

(*)

-

0

0

0

Calendar year 1950 : Max 1,040 Mln 0 Mean 24.8 Ac-ft 17,970

Water year 1950-51 : Max 858 Min 0 Mean 27.0 Ac-ft 19,520

Peak discharge (base, 200 cfs).--Nov. 18 (8:30 p.m.) 462 cfs 

(12.55 ft); Dec. 7 (1 a.m.) 837 cfs (10.07 ft); Dec. 14 (9 a.m. 

247 cfs (5.99 ft); Jan. 18 (6 p.m.) 357 cfs (6.87 ft); Jan. 22 

(1 a.m.) 1,150 cfs (11.48 ft).

* Discharge measurement made on this day.

7.22 ft); Dec. 3 (5 p.m.) 1,360 cfs

980 cfs (10.80 ft); Jan. 10 (6 a.m.) 

2 a.m.) 1,210 cfs (ll.87 ft); Feb. 5
NOVATO CREEK BASIN 

Novato Creek near Novato, C.alif.

Location. Lat 38°06'45", long. 122°35'05", in Novato Grant, on right bank 500 ft downscream from county highway bridge and 1 mile west of U. S. Highway 101 in Novato, Marin 

County.

Drainage area.--16.9 sq mi.

Records available.--October 1946 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 45 ft (from topographic map').

Average discharge.--5 years, 7.99 cfs.

Extremes.--Maximum discharge during year, 1,130 cfs Dec. 3 (gage height, 7.97 ft); no flow 

ror several months.

1946-51: Maximum discharge, that of Dec. 3, 1950; no flow for several months each 

year.

Remarks. Records good except those for period of no gage-height record, which are fair, 

wo storage or diversion.

Rating tables, water year 1950-51 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Jan. 21

0.6 

.7 

.8 

.9

1.0

1.1

.1

.5

1.6 

3.4 

6.2

1.3 

1.6 

2.0 

3.0 

6.0

15

35

75

234

760

Jan. 22 to Sept. 30 

0.6 0 1.1 9.5

.9 

1.0

.1 1.4 

.5 2.0

2.1 4.0

5.2

Discharge, In cubic feet per second, water year October 1950 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

Tota]

Mean

Ac- ft

Oct.

0

0

0

Nov.

00"

0

0

0

0

0

0

0

0

0

0

0

0

0

3.2

1.9

131 ~E?

41

58

*28

18

12

9.0

7.7

6.9

6.6

5.6

6.9

-

404.8

13.5

803

Dec.

5.3 15 

694

T7F

78

*157

157

143

87

64

*60

44

69

261

188

95

67

51

38

29

24

22

21

20

18

16

15

14

13

12

10

2,666.3

86.0

5,290

Jan.

9.4

8.5

11

10

9.0

8.1

7.7

7.3

*77T

44

56

32

23

21

29

24

65

168

87

60

187

248

rrc

79

64

46

40

30

27

*26

26

1,572.7

50.7

3,120

Feb.

25

23

21

128

241

83

62

40

36

35

46

32

27

27

26

24

23

20

18

17

16

15

14

13IS"

14

14

25

_

_

-

1,078

38.5

2,140

Mar.

18

13

12

35

40

*65

5T

41

41

30

27

24

22

20

17

16

14

13

12

11

10

10

8.5

8.0

7.6

7.1

6.3

5.5

5.5

5.2

4_.8

606.5

19.6

1,200

Apr.

4.4

*4.4

4.1

4.1

3.7

3.4

3.4

2.3

2.6

2.6

2.3

2.3

2.3

2.1

2.1

2.1

2.1

2.1

1.9

1.7

1.7

1.5

1.5

1.5

1.7

1.5

1.3 370"

a5

a4

-

78.7

2.62

156

May

a3

a2

a3

a6a5"

a4

a3

*2.1

1.9

1.7

1.5

1.7

1.7

1.5

1.2

.5

.4

.2

.1

.1

.1

.1

.2

.2

.1

.1

.1

.1

00"

0

41.6

1.34

83

June

-

0

0

0

July

0

0

0

Aug.

0

0

0

Sept.

-

0

0

0

Calendar year 1950: Max 694 Mln 0 Mean 16.3 Ac-ft 11,820

Water iter year year 1950-51: 1950-51: Max Max 694 694 Mln Mln 0 0 Mean Mean 17.7 17.7 Ac-ft Ac-ft 12,790 12,790

Peak discharge (base, 200 cfs).--Nov. 18 (6:50 p.m.) 441 efs (4.22 ft); Dee. 5 (l p.m.) 1,150 efs

f.37 ft); DecT 6 (6:30 p.m.) 485 cfs (4.47 ft); Dec. 14 (4 a.m.) 392 cfs (3.93 ft); Jan. 18 (5 a.m.) 

~J8 cfs (3.61 ft); Jan. 21 (9:30 p.m.) 639 cfs (5.33 ft); Feb. 5 (l a.m.) 632 cfs (5.29 ft); Mar. 6 

(2:30 p.m.) 234 cfs (2.98 ft).

* Discharge measurement made on this day.

a No gage-height record. Discharge estimated on basis of records for nearby stations.

(7 

338
4b ^ RUSSIAN RIVER BASIN

East Fork Russian River near Calpella, Calif.

Location. Lat 39°15' , long. 123°09', in sec. 13, T. 16 N., R. 12 W., on right bank 1 mile 

downstream from Cold Creek and 3 miles east of Calpella.

Drainage area.--94.0 sq mi.

Records available.--November 1941 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 720 ft (from topographic map).

Average discharge.--9 years (1942-51), 273 cfs.

Extremes. Maximum discharge during year, 11,300 cfs Jan. 21 (gage height, 13.7 ft), from 

rating curve extended above 5,000 cfs by logarithmic plotting; minimum, 55 cfs July 12. 

1941-51: Maximum discharge, that of Jan. 21, 1951; minimum, 7 cfs Dec. 13, 1943.

Remarks. Records good. Flow greatly affected by diversion from Eel River through Potter 

Valley powerhouse (see p. 460 ). Small diversions above station for irrigation.

Revisions. W 1041: Drainage area.

Rating table, water year 195O-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Jan. 31 to Feb. 3)

2.0 

2.5

3.0 

4.0

104

162

258

530

5.0 

7.0 

9.0

11.0

905

2,000

3,900

6,700

Discharge, In cubic feet per second, water year October 1950 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

Tote.}

Mean

Ac-ft

Oct.

249

254

243

249

254

268

251

245

265

245

251

245

265

251

268

275

260

*258

254

256

251

251

270

258

268

277

296

576

655

574

353

9,129

294

18,110

Nov.

406

355

335

327

319

319

319

519

516

316

314

311

511

514

316

945

415

672

502

*878

652

434

587

565

550

542

550

540

557

571

-

12,235

408

24,270

Dec.

353

972

6.270

*1,020

479

1,290

1,150

1,040

775

626

939

634

608

1,400

748

620

536

515

482

458

454

425

415

409

404

595

590

584

381

387

581

25,518

817

50, 220

Jan.

571

412

550

*461

412

598

561

404

406

1,050

1,340

755

595

536

1,020

925

1,760

1-, 830

1,160

820

5.650

5,070

1,140

828

686

609

551

509

485

461

437

29,972

967

59,450

Feb.

415

*418

780

4.250

1,760

869

700

626

578

657

2,280

954

724

640

588

548

545

518

491

521

518

491

476

455

446

454

429

429

_

_

-

22, 500

804

44,630

Mar.

420

409

406

530

530

834

*691

662

747

574

55O

506

488

470

452

44O

432

420

415

409

404

398

592

590

387

584

581

576

368

368

568

14,581

470

28,920

Apr.

366

358

*371

568

565

361

322

337

332

322

316

301

306

301

306

311

329

324

522

524

552

358

332

327

340

342

345

443

571

558

-

10,188

340

20,210

May

353

355

*418

620

433

429

390

376

566

558

555

555

555

555

348

297

196

207

180

180

197

164

164

160

155

134

148

192

168

156

158

8,720

281

17,300

June

172

145

141

186

158

151

*151

159

124

122

168

158

151

129

134

117

124

158

137

139

159

140

125

137

185

150

157

133

141

115

-

4,282

143

8,490

July

121

165

146

155

157

148

126

132

172

145

*142

124

140

154

154

167

128

127

125

154

118

118

167

154

150

124

152

118

129

165

152

4,289

138

8,510

Aug.

123

136

141

132

156

a!50

a!30

a!30

a!40

a!50

a!25

a!25

alSO

a!40

alSO

*153

158

134

134

175

145

149

146

157

129

135

175

137

136

142

163

4,384

141

8,7OO

Sept.

147

167

188

151

147

142

155

125

133

182

138

156

136

153

136

152

185

155

*145

150

160

124

140

179

167

162

160

178

170

178

-

4,637

155

9,200

Calendar year 1950: Max 6,270 Mln 21 Mean 319 Ac-ft 231,000

Water year 1950-51: Max 6,27O Mln 113 Mean 412 Ac-ft 298,000

Peak diacharse (base, 3,300 cfa). Dec. 3 (10:50 a.m.) 10,700 cfs (13.4 ft): Jan. 18 (12:3O a.m.)

3,550 cfs (8.66 ft); Jan. 21 (5 p.m.) 11,500 cfs (l5.7 ft); Feb. 4 (2:50 p.m.) 1O,000 cfs (13.0 ft);

Feb. 11 (10 a.m.) 5,120 cfs (9.94 ft).

Discharge measurement made on this day. 

a No gage-height recordj discharge estimated on- basis of records for Potter Valley powerhouse tallrace near Potter Valley.
RUSSIAN RIVER BASIN 453

Russian River near Hopland, Calif.

Location.--Lat 39°01'35", long. 123°07'45", in Rancho de Sanel Grant, on right bank at 

downstream side of abandoned highway bridge 0.2 mile downstream from McNab Creek, 

4 miles north of Hopland, and 17 miles upstream from Sulphur Creek.

Drainage area. 362 sq mi.

Records available. December 1939 to September 1951.

Gage. Water-stage recorder. Datum of gage is 497.43 ft above mean sea level, datum of T929.

Average discharge. 11 years (1940-51), 636 cfs.

Extremes.--Maximum discharge during year, 33,900 cfs Jan. 21 (gage height, 25.66 ft); min-

 imum, 69 cfs July 27.

1939-51: Maximum discharge, 34,100 cfs Feb. 28, 1940, from rating curve extended 

above 30,000 cfs; maximum gage height, 26.12 ft Jan. 21, 1943; minimum discharge, 24 cfs 

Dec. 18, 1943.

Flood of December 1937 reached a stage of about 30.0 ft, from floodmarks.

Remarks. Records good. Flow considerably affected by diversion into basin; see Remarks

 for East Fork Russian River near Calpella. Small diversions above station for Irrigation.

Revisions. W 1041: Drainage area.

Rating tables, water year 1950-51 (gage height, in feet,

and discharge,- in cubic feet per second) 

(Shifting-control method used Dec. 4 to Feb. 4)

Oct. 1 to Feb. 4 Feb. 5 to Sept. 30

5.8 

6.0 

7.0 

9.0

205

290

815

2,360

13.0

18.0

20.0

6,850

15,000

19,200

4.6

5.0 

5.5 

6.0

85

205

420

700

10.0 3,980

14.0 8,580

15.0 10,000

Discharge, in cubic feet per second, water year October 1950 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.

225

225

221

233

233

237

245

233

233

229

229

229

233

245

233

258

254

254

250

*250

254

245

254

258

272

308

317

759

1,000

1.870

602

10,892

351

21, 600

Nov.

678

607

495

445

410

390

380

371

366

362

358

353

348

348

353

2.540

1,040

1,690

1,360

1,470

1,840

992

760

640

560

510

500

475

450

536

21, 627

721

42,900

Dec.

546

1,390

17.600

,270

,080

,960

,520

,470

,740

,030

,410

,850

,360

,670

,400

,560

,470

,290

,140

,030

894

860

860

854

828

773

743

713

737

719

707

73,474

2,370

145,700

Jan.

695

690

1,290

1,090

874

867

854

848

860

2,480

3,580

2,620

1,700

1,360

2,230

2,160

4,860

7,060

4,070

2,580

12, 600

16.400

*4,940

3,120

2,300

,860

,570

,350

,210

* ,080

964

90,162

2,908

178,800

Feb.

874

828

1,170

7,330

8.760

3,340

2,470

,060

,770

,750

,190

,440

,320

,880

,630

,440

,380

,310

,150

,140

,230

,110

,110

987

931

875

833

840

_

-

59,148

2,112

117,300

Mar.

854

777

721

1,380

1,880

2,240

*2, 230

*1,860

2.380

1,800

1,540

1,340

1,210

1,130

1,040

945

868

812

770

' 735

707

682

652

628

616

598

574

562

550

532

526

33,139

1,069

65,730

Apr.

520

505

500

500

*495

490

460

450

440

425

411

406

398

398

595

598

402

416

406

402

402

416

416

393

406

406

402

573

526

465

13,220

441

26,220

May

440

430

*608

1.360

942

756

610

538

500

465

455

450

440

430

416

411

301

275

276

184

260

226

205

200

180

205

205

205

188

190

182

12,533

404

24, 860

June

180

191

164

172

166

168

161

156

163

*140

151

150

141

134

130

143

128

130

136

136

133

134

147

137

147

146

132

122

115

127

-

4,380

146

8,690

July

105

115

120

131

129

126

137

116

126

132

*1Z7

122

118

144

131

130

122

115

112

114

132

122

115

124

123

115

111

126

113

114

122

3,789

122

7,520

Aug.

112

114

122

144

122

146

128-

118

118

119

133

113

124

129

*124

119

127

148

125

140

141

136

136

136

151

125

140

141

129

131

136

4,027

130

7,990

Sept.

157

155

167

147

139

132

133

152

125

133

135

123

123

117

149

134

149

143

136

129

*138

146

128

139

156

150

149

151

176

164

-

4,275

142

8,480

Calendar year 1950: Max 17,600 Min 28 Mean 680 Ac-ft 492,500

Water year 1950-51: Max 17,600 Mln 105 Mean 906 Ac-ft 655,800

Peak discharge (base. 9.600 efs). Dee. 3 (5 p.m.) 31,200 cfs (24.7 ft); Jan. 18 (7 a.m.) 10,100 

cfs (15.06 ft); Jan. 21 (9 p.m.) 33,900 cfs (25.66 ft); Feb. 4 (11 p.m.) 19,000 cfs (19.92 ft). 

* Discharge measurement made on this day.

256498 O - 53 - 30
454 RUSSIAN RIVER BASIN

Russian River near Healdsburg, Calif.

Location. Lat 38°36'45", long. 122°50'05", in SE^ sec. 22, T. 9 N., R. 9 W., on left bank 

'I miles east of Healdsburg and 3.5 miles upstream from Dry Creek.

Drainage area.--791 sq mi.

Records available.--December 1939 to September 1951.

Gage. Water-stage recorder. Datum of gage is 76.84 ft above mean sea level, datum of 

1929 (levels by Corps of Engineers).

Average discharge. 11 years, 1,260 cfs.

Extremes.--Maximum discharge during year, 42,800 cfs Dec. 4, Jan. 22 (gage height, 19.5 

I't); minimum, 81 cfs July 21.

1939-51: Maximum discharge, 67,000 cfs Feb. 28, 1940 (gage height, 30.0 ft), from 

rating curve extended above 50,000 cfs; minimum, 27 cfs June 25, 1949. 

Flood of December 1937 reached a stage of 30.8 ft, from floodmarks.

Remarks.--Records good. Several small diversions above station for irrigation. Flow also 

affected by diversion into basin, see Remarks for East Fork Russian River near Calpella.

Revisions. W 1041: Drainage area.

Rating tables, water year 195O-51 (gage height. In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 16 Feb. 6 to Sept. 30

1.7 190

2.0 284

2.5 495

3.0 820

5.0 2,450

7.0 4,910

9.0 8,420

Nov. 17 to Feb. 5

9.0 8,420

12.0 14,800

15.0 24,000

18.0 36,000

Note. Same as 

preceding table 

below 9.0 ft.

Discharge, In cubic feet per second, water year October 1950 to September 1951

1.2 100

1.6 185

2.0 325

3.0 905

4.0 1,660

5.0 2,680

8.0 7,140

11.0 12,500

Day

1

2

3

4

5

6

7

8

9

10

11

12

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

214

220

220

226

226

226

232

232

226

226

223

226

226

235

248

253

247

247

*247

250

253

253

257

284

384

1,210

1,240

1,930

4.900

1,880

17,452

563

34,620

Nov.

1,130

*1,080

876

724

633

568

525

484

462

440

431

426

422

412

422

6,710

5,320

6,200

6,080

6,250

*7,020

3,760

2,450

1,810

1,470

1,260

1,140

1,070

974

939

-

61,488

2,050

122,000

Dec.

974

1,010

21,000

54.400

*8,480

6,010

9,140

7,760

7,370

4,910

5,640

*4, 600

3,600

7,780

8,210

5,070

3,760

3,110

2,610

2,280

2,030

1,810

1,660

1,530

1,440

1,360

1,270

1,200

1,140

1,100

1,070

163,324

5,269

323,900

Jan.

1,020

988

1,270

1,630

1,400

1,230

1,140

*1,080

1,110

2,410

4,740

5,430

3,330

2,660

2,840

3,970

6,420

10,600

9,820

6,380

8,550

*32.300

*17,400

7,690

5,330

4,100

3,390

2,920

2,570

2,300

2,080

158,098

5,100

313,600

Feb.

*1,880

1,720

1,710

4,130

15.800

8,020

5,220

4,060

3,310

2,960

6,560

10,700

5,970

4,460

3,620

3,000

2,620

2,450

2,160

2,000

2,080

1,910

1,870

1,700

1,580

1,490

1,420

1,370

_

-

-

105,770

3,778

209,800

Mar.

,450

,340

,250

,500

,860

,280

.580

,700

* ,100

,340

,720

,340

,080

,880

,710

,590

,470

,380

,300

,230

,180

,140

,090

,040

,000

970

938

898

872

840

820

55, 688

1,796

110,500

Apr.

801

*782

756

749

730

710

762

674

662

638

614

596

590

572

566

566

572

578

572

566

560

548

560

548

554

548

542

680

808

680

-

19,084

636

37,850

May

626

602

794

2,780

2.900

1,570

*1,240

1,050

938

860

801

768

736

710

674

638

614

530

502

470

442

431

405

370

361

348

334

313

317

309

501

23,734

766

47,080

June

285

285

281

267

266

270

259

252

*215

235

218

209

215

195

194

188

188

180

174

188

180

177

177

177

174

174

180

172

163

156

-

6,294

210

12,480

July

153

144

140

142

142

142

142

135

131

127

137

133

129

124

124

124

*114

116

108

103

100

105

108

103

110

106

105

102

103

103

102

3,757

121

7,450

Aug.

108

106

103

102

108

114

113

124

111

108

106

106

108

105

111

111

110

108

111

*118

118

127

126

124

122

124

120

118

129

I!?

122

3,550

115

7,040

Sept.

122

131

135

140.

144

137

131

126

127

122

113

124

118

116

111

110

114

120

127

124

118

*120

126

122

120

129

131

133

133

156

-

3,780

126

7,500

Calendar year 1950 : Max 34,400 Mln 38 Mean 1,414 Ac-ft 1,023,000

Water year 1950-51: Max 34,400 Mln 100 Mean 1,704 Ac-ft 1,234,000

Peak discharge (base, 19.000 cfs). Dec. 4 (l a.m.) 42,800 cfs (19.5 ft); Jan. 22 (6 p.m.) 42,800 

3fs (19.5); Feb. 5 (4 p.m.) 19,200 cfs (13.56 ft). 

* Discharge measurement made on this day.
RUSSIAN RIVER BASIN 455 

Dry Creek near Cloverdale, Calif.

Location.--Lat 38°44'59", long. 123°05'28", in sec. 4, T. 10 N., R. 11 W., on left bank 

buu rt downstream from Smith Creek and 5 miles southeast of Cloverdale.

Drainage area.--88.3 sq mi.

Records available.--November 1941 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 320 ft (from.topographic map).

Average discharge. 9 years (1942-51), 114 cfs.

Extremes. Maximum discharge during year, 17,800 cfs Dec. 3 (gage height, 15.0 ft), from 

 raring curve extended above 4,800 cfs on basis of velocity-area studies and logarithmic 

plotting; minimum, 0.1 cfs Sept. 23-24.

1941-51: Maximum discharge, 21,900 cfs Jan. 21, 1943 (gage height, 16.65 ft), from 

rating curve extended above 4,800 cfs as explained above; minimum, 0.1 cfs Sept. 14-24, 

30, Oct. 1-6, 1944, Sept. 24 to Oct. 12, 1949, Sept. 23-24, 1951.

Flood of December 1937 reached a stage of about 18 ft, from floodmarks.

Remarks.--Records good. No storage or diversion above station. 

Revisions.--W 1041: Drainage area.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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

Total

Mean

Ac- ft

Oct.

~rz 0.2

.2

.2

.2

.3

.4

.4

.3

.3

.3

.3

.2

.2

.2

.3 

1.3

1.1

.7

*.7

.7

.7

.7

1.0

12

156

108

352

642

4T7

118

1,846.1

59.6

3,660

Nov.

86

*60

46 

36

29

26

23

21

20

17

15

15

14

T5

31

1,280 

446

1,000

577

822

*591

380

266

190

146

122

134

104

92

101

6,704

223

13 , 300

Dec.

86

283

7,320

1,970

838

*959

830

670

598

405

654

405

346

1,110

535

334 

227

182

157

136

122

113

107

100

97

94

89

86

84

83

79

19,099

616

37,880

Jan.

77

78

96

86

80

78

*76

75

79

224

450

278

179

148

194

179 

454

987

614

366

3,510

2,950

1 , 330

814

598

461

372

312

264

231

*20B

15,851

511

31,440

Feb.

*1B5

173

201 

1,260

1,290

738

588

495

424

453

 1,410 9"3TT

644

514

435

370 

340

305

270

260

240

245

250

215

195

176

168 725"

_

_

-

12,999

464

25,780

Mar.

240

205

180 

320

330

459

402

386

*477

TTO

335

305

275

250

225

205 

190

168

152

144

132

128

116

112

104

93

89

85

78

74

70

6,699

216

13,290

Apr.

67

63

*61 

58

56

56

54

49

47

47

45

42

40

40

40

40 

42

40

37

37

35

35

34

32

34

34

32

-J5- m

37

-

1,391

46.4

2,760

May

35

38

219 

484

2TU

128

*93

67

56

49

45

45

40

37

35

32 

30

29

27

27

26

26

24

22

22

21

20

19

IB

TS

18

1,960

63.2

3,890

June

17

Iff

15 

15

15

15

15

15

*14

14

13

13

12

12

12

12

12

11

11

11

11

11

11

11

11

11

10

9.5

9.0 9TO-

-

373.5

12.4

741

July

8.5

FTC

7.5 

7.5

8.0

7.5

7.0

.5

.6

* .7

.2

.7

.3

.9

.5

.2 

.8

.8

.2

.9

.6

.6

.9

.9

.9

.9

.6

.6

.6

.6

.4

123.9

4.00

246

Aug.

1.4 TT?

1.4 

1.4

1.4

1.4

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

.9

.9 

.9

.9

*.9

1.1

1.1

1.1

1.1

1.1

1.1

.9

.9

.9

1.1

1.1

1.1

34.3

1.11

68

Sept.

-^0.9

.9 

.9

.9

.7

.7

.7

.6

.6

.6

.6

.6

.7

.7

.6 

.6

.4

.4

.4

*.3

.2

72

.2

.2

.3

.3

.3

.4

.4

-

16.2

0.54

32

Calendar year 1950: flax 7,320 Mln O.2 Mean 154 Ac-ft 111,600

Water year 1950-51: Max 7,320 Mln 0.2 Mean 184 Ac-ft 133,100

Peak discharge (base, 3,300 cfs). Dec. 3 (10:30 a.m.) 17,800 cfs (15.0 ft); Jan. 21 (2 p.m.)

8,580 cfs (10.60 ft); Feb. 4 (5:30 p.m.) 3,320 cfs (6.82 ft).

* Discharge measurement made on this day.
456 RUSSIAN RIVER BASIN

Laguna de Santa Rosa near Graton, Calif.

Location Lat 38°27'10", long. 122°50'03", in sec. 14, T. 7 N., R. 9 W., in Molinos land 

grant, on left bank at downstream side of bridge, 0.2 mile downstream from Santa Rosa 

Creek,and 2 miles northeast of Graton.

Records available. February 1940 to September 1951 (gage heights only since October 1949), 

discontinuea.

Gage. Water-stage recorder. Datum of gage is 40.00 ft above mean sea level (Corps of 

Engineers bench mark); gage readings have been reduced to elevations above mean sea

level.

Extremes. Maximum elevation during year, 62.3 ft Dec. 3.

 1340-51: Maximum contents, 61,400 acre-ft Feb. 28, 1940 (elevation, 72.1 ft).

Revisions.--The maximum elevation for the water year 1950 has been revised to 61.2 

ft Fee. i, 1950, superseding figure published in Water-Supply Paper 1181.

Remarks.--The laguna is a natural water channel and overflow basin connecting Santa Rosa 

Creek, Mark West Creek, and other smaller creeks with Russian River. During floods, 

direction of flow may be either to or from Russian River and the laguna acts as a 

natural regulator of floods on lower Russian River. Records show elevation at 12 p.m. 

Elevations less than 50.1 ft not given.

Revisions. Elevations for the water year 1950 were published in error in Water-Supply

 Paper 1181. -To obtain correct elevations, subtract 2.0 ft from each elevation shown.

Gage height, In feet, water year October 1950 to .September 1951

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

Oct.

_

_

-

-

-

_

_

_

_

-

_

_

_

_

-

_

_

.

_

-

_

_

_

_

-

51.4

50.6

50.5

50.7

50.7

50.7

Nov.

50.6

50.5

50.4

50.3

50.2

50.1

50.1

_

_

-

_

_

_

_

50.4

51.8

52.2

55.8

55.4

55.8

55.6

54.3

53.3

52.6

52.2

51.9

51.8

51.7

51.6

51.6

Dec.

51.6

52.4

62.3

61.1

57.1

56.2

56.3

56.2

55.4

54.3

54.4

53.8

53.7

56.6

56.8

55.2

54.0

53.2

52.8

52.5

52.3

52.2

52.1

51.9

51.8

51.8

51.7

51.7

51.6

51.6

51.6

Jan.

51.5

51.5

51.6

51.6

51.6

51.6

51.6

51.5

51.5

52.5

53.9

53.6

52.8

52.3

52.5

52.9

55.7

57.1

55.9

54.9

57.5

58.7

56.7

54.8

53.6

52.9

52.5

52.2

52.0

51.9

51.7

Feb.

51.6

51.6

51.6

53.8

56.0

54.6

53.4

52.7

52.4

52.4

53.5

53.5

52.9

52.4

52.2

52.0

52.0

5i.9

51.8

51.8

51.8

51.8

51.7

51.7

51.7

51.6

51.6

51.6

_

-

Mar.

51.6

51.6

51.6

52.2

52.3

52.9

53.1

52.7

52.5

52.2

52.0

51.8

51.7

51.6

51.5

51.5

51.4

51.4

51.4

51.3

51.3

51.3

51.3

51.3

51.2

51.2

51.2

51.2

51.2

51.2

51.1

Apr.

51.1

51.1

51.1

51.1

51.1

51.1

51.1

51.1

51.1

51.1

51.1

51.1

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.3

51.1

51.1

Hay

51.1

51.2

51.3

51.7

51.5

51.4

51 A

51.3

51.3

51.2

51.2

51.1

51.1

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

51.0

50.9

50.9

50.9

50.9

50.9

50.8

50.8

50.8

50.8

June

50.8

50.7

50.7

50.7

50.7

50.7

50.7

50.7

50.7

50.7

50.7

50.6

50.6

50.6

50.6

50.6

50.6

50.6

50.6

50.6

50.6

50.6

50.6

50.6

50.6

50.6

50.5

50.5

50.4

50.4

-

July

50.4

50.3

50.3

50.2

50.2

50.1

50.1

_

50.6

50.4

50.5

50.4

50.3

50.2

50.1

50.1

_

_ '

_

-

.

_

_

_

-

_

_

_

_

_

-

Aug.

_

-

-

-

-

_

-

-

50.1

50.5

50.3

50.1

-

-

-

_

-

-

_

-

_

-

-

_

-

_

-

_

-

..

-

Sept.

.

-

-

-

-

_

-

_

-

-

_

-

-

-

-

_

50.2

-

-

-

50.9

50.9

50.7

50.6

50.8

50.8

50.7

50.8

50.7

50.7

-
RUSSIAN RIVER BASIN 457

Russian River at Guerneville, Calif.

Location. Lat 38°30'03", long. 122°59'36", in M£ sec. 32, T. 8 N., R. 10 W., near left 

Dame on upstream side of bridge on State Highway 12 in Guerneville, 6.5 miles upstream 

from Austin Creek.

Drainage area.--1,346 sq mi.

Records available.--December 1939 to September 1951.

Gage. Wire-weight gage read twice daily. Datum of gage is 8.67 ft above mean sea level, 

cfatum of 1929. Temporary water-stage recorder, 3.2 miles upstream, used during periods 

of low flow since 1948.

Average discharge.--11 years (1940-51), 1,988 cfs; median of yearly mean discharges, 1,730 

el's.

height, 34.7 ft); miniheight, 46.87 ft); miniExtremes.--Maximum discharge during year, 53,600 cfs Dec. 4 

mum, 108 cfs Aug. 18.

1939-51: Maximum discharge, 88,400 cfs Feb. 28, 1940 

mum, 57 cfs July 6, 1950.

Remarks. Records good except those for period of indefinite stage-discharge relation, 

which are fair. Many diversions above station for irrigation. Flow also affected by 

diversion into basin; see "Remarks" for East Fork Russian River near Calpella.

Revisions. W 1041: Drainage area.

Rating tables, water year 1950-51 (gage height, In feet, and discharge,

In cubic feet per second) 

(Shifting-control method used Oct. 1-16, June 1-19, Sept. 27-3O)

Oct. 1-16 and Apr. 17 to Sept. 30 Oct. 17 to Apr. 16

7.1 

8.0 

9.0

105 

ZZZ 

458

1O.O 

1E.O 

15.0

805 

1,850 

3,9EO

6.1 

7.0 

9.0

355

945

£,660

15.0 11,£00

£7.0 34,600

34.0 51,800

Discharge, In cubic feet per second, water year October 195O to September 1951

Day

1

£

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

21

2£

23

24

25

£6

£7

28

£9

30

31

Total

Mean

Ac-ft

Oct.

198

£07

£10

£14

220

££4

££4

227

231

££7

226

2££

222

2££

2£7

*£40

£45

£45

£40

£40

240

£40

250

260

£75

375

1,600

1,400

3,000

7.500

3,000

2£,651

731

44,930

Nov.

*1,700

1,500

900

800

700

600

569

518

48 £

446

434

404

394

38£

38£

5,460

8,880

9, £60

IE. 900

9,750

IE, 800

*8,040

4,850

3, £60

£,340

1,870

1,610

1,460

1,280

1,160

-

95,131

3,171

188,700

Dec.

1,130

1.100

23,100

*51.500

£8,100

11,200

15,800

13,300

13,500

9,680

9,310

9,040

6,740

IE, 100

16,600

11,700

7,930

6,180

5,060

4, £20

3,660

3,190

E,8£0

2,530

2,310

2,130

1,960

1,800

1,690

1,600

1,530

£82,510

9,113

560,400

Jan.

1,450

1.590

1,500

£,110

1,910

1,680

1,530

*1,470

1,480

2,580

5,770

8,370

5,860

4,2£0

3,960

5,580

7,690

15,500

18,600

11,900

IE, 200

* 55 .000

34,800

14,700

9,650

7,500

5,980

5,050

4,560

5,840

5,550

240,760

7,766

477,500

Feb.

*£,980

£,680

£,540

5,520

18.400

15,800

8,590

6,460

5,310

4,610

6,660

15,800

9,360

6,940

5,680

4,810

4,180

3,850

5,4£0

5,070

5,080

£,880

£,760

£,560

2,560

£,££0

£,110

£.030

_

_

-

154,660

5,524

506,800

Mar.

2,270

£,110

1,950

£,010

*5,410

4,170

5.950

5,100

5,270

4,960

3,980

3,500

3,1£0

£,810

£,540

£,520

2,160

£,010

1,870

1,760

1,680

1,600

1,550

1,470

1,400

1,360

1,£90

1,£40

1,200

1,150

1 .110

78, £80

£,5£5

155,300

Apr.

1.080

*1,080

1,040

1,020

1,010

975

960

945

915

870

84£

814

800

77£

758

744

7£9

7£5

718

697

680

67£

6£0

582

630

641

630

773

1,050

918

-

£4,690

823

48,970

May

805

749

950

3,500

5.900

*£,620

1,970

1,580

1,540

1,120

1,080

1,010

967

92£

87£

825

775

711

658

6£4

588

55£

546

507

485

45£

434

406

397

387

379

31,907

1,0£9

65,290

June

564

356

355

354

51£

554

531

*3££

510

296

287

276

245

£45

258

251

£24

£20

212

210

208

£04

196

194

190

187

185

186

175

169

-

7,59£

255

15,060

July

161

158

150

145

15£

155

155

150

149

143

137

139

136

136

13£

133

129

*1£4

121

116

113

111

111

11 £

111

115

115

114

115

114

110

4,056

151

8,040

Aug.

109

11£

112

110

11Q

115

118

118

1£5

1£0

115

116

117

116

11£

115

114

110

111

1£0

1£0

124

150

151

150

131

150

1£5

1£5

*15£

155

3,706

120

7,350

Sept.

13£

135

138

142

145

149

145

141

152

159

153

130

137

156

151

130

136

144

141

144

141

138

138

159

156

*136

14£

145

148

150

4,171

139

8, £70

Calendar year 1950: Max 51,500 Mln 61 Mean £,315 Ac-ft 1,676,000

Water year 1950-51 : Max 51,5OO Mln 109 Mean £,603 Ac-ft 1,885,000

* Discharge measurement made on this day.

Note_.--Stage-discharge relation Indefinite Oct. 17 to Nov. 6; discharge estimated on basis of 1 discharge measurement and records for the station near Healdsburg. Records for Oct. 1-16, Apr. 17 to 

Sept. 30 computed from temporary recorder.
458 EEL RIVER BASIN

Lake Pillsbury at Hullville, Calif.

Location.--Lat 39°24', long. 122°57', on line between sees. 14 and 23, T. 18 N., R. 10 W., 

at scott Dam near right bank of Eel River, at Hullville, 0.3 mile downstream from Rice 

Fork.

Drainage area.--288 sq mi.

Records available.--October 1922 to September 1951 (gage heights only prior to October

Gage. Water-stage recorder. Datum of gage is at mean sea level (levels by Pacific Gas 

£ Electric Co.). Prior to Jan. 26., 1950, staff gage at same site and datum.

Extremes. Maximum contents during year, 86,200 acre-ft May 25-27 (elevation, 1,906.7 ft); 

minimum observed, 44,000 acre-ft Oct. 25, 26 (elevation, 1,884.0 ft).

1922-51: Maximum contents, 95,600 acre-ft May 13, 16, 1925 (elevation, 1,910.8 ft); 

minimum, 10 acre-ft Dec. 9, 10, 1931 (elevation, 1,822.5 ft).

Remarks. Reservoir is formed by concrete overflow type dam; storage began in December 1921. 

^apacity, 93,700 acre-ft between elevations 1,822.4 ft (sill of outlet gate) and 1,910.0

t (ton of snillwav 0'3'hpa) ahmrp mean qcua 1 enrol Wat-or> 1 q r»o"lpaqoH Hrthrn T7ol PM wor> t-n

C ooperat ion.--Gage-he ight record furnished by Pacific Gas & Electric Co., in connection 

witn a .Federal Power Commission project.

Contents, in thousands of acre-feet, water year October 1950 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

Oct.

.

g55.6

g55.3

g54.8

-

_

-

-

-

g51.9

_

_

g50.3

-

-

-

-

g*7.7

-

-

_

-

-

-

g44.0

g44.0

-

g53.6

g63.4

-

g65.8

Nov.

s ee. 6

-

-

-

gSl.5

g66.9

-

g66.2

-

-

_

_

g64.1

g63.7

-

g72.0

-

-

-

75.5

_

-

-

-

-

_

-

-

-

a72.2

-

Dec.

g72.0

-

81.0

76.5

-

75.9

75.5

75.5

75.1

-

_

_

-

-

75.9

_

_

-

_

-

_

-

-

-

-

_

_

-

-

_

a72.2

Jan.

g72.2

g72.0

-

-

g72.7

_

-

-

_

-

73.3

_

-

_

-

73.5

75.7

76.1

74.9

74.3

82.9

78.8

76.5

75.5

74.9

74.5

74.1

73.9

73.. 7

73.5

73.3

Feb.

73.1

73.1

74.1

79.7

76.7

75.3

74.7

74.3

73.9

74.1

76.3

75.3

74.5'

74.1

73.9

73.7

73.5

73.3

73.3

73.3

73.1

_

-

_

-

_

_

a72.9

-

_

-

Mar.

g72.9

-

-

-

-

73.3

73.3

73.3

73.7

73.3

73.1

73.1

-

_

73.1

73.1

_

-

73.1

73.3

73.7

74.3

74.7

75.3

75.7

76.1

76.5

76.7

77.2

77.2

77.4

Apr.

77.6

77.8

78.0

78.0

78.2

78.2

78.4

78.4

78.4

78.4

78.4

78.4

78.4

78.4

78.4

78.4

78.4

78.2

78.2

78.2

78.0

77.8

77.6

77.4

77.2

76.7

76.5

77.4

77.4

77.4

May

77.4

77.2

77.8

80.5

82.0

82.9

83.3

83.8

84.2

84.4

84.6

84.9

84.9

84.9

84.9

85.1'

85.3

85.5

85.8

85.8

86.0

86.0

86.0

86.0

86.0

86.0

86.0

86.0

86.0

85.8

85.8

June

85.3

85.3

85.1

85.1

84.9

84.6

84.4

84.4

84.2

84.0

83.8

83.6

83.3

83.3

83.1

82.9

82.7

82.2

82.0

81.8

81.6

81.2

81.0

80.7

80.3

80.1

79.7

79.5

79.0

78.8

-

July

78.4

78.2

77.8

77.6

77.2

76.9

76.5

76.3

75.9

75.7

75.3

74.9

74.5

74.3

73.9

73.5

73.3

72.9

72.4

72.0

.

_

-

_

-

_

_

_

_

g68.1

a67.7

Aug.

_

g67.3

-

-

_

-

g65.0

-

-

_

_

g63.0

-

-

.

_

-

_

-

.

_

-

_

-

_

_

-

-

_

a56.5

Sept.

_

-

-

-

g54.4

_

-

-

-

-

_

_

-

-

-

_

_

-

_

-

_

_

g47.5

_

-

_

_

-

-

a45.5

-

a No gage-height record; contents interpolated, 

g Computed from staff-gage .reading.

ithly elevation and contents, water year October 1950 to September 1951

Date

Dec. 31. .......................

Calendar year 1950. ..........

Sept. 30. .......................

Elevation 

(feet)

1,896.8

-

_

1,900.6

1,902.6

1,902.6

1,906.5

1,903.3

_

-

Contents 

(acre-feet)

56,700

65,800

72,200

72,200

-

73,300

72,900

77,400

77,400

85,800

78,800

67,700

56,500

45,500

Change in contents 

during month 

(acre-feet)

.

+9,100

+6,400

0

+39 , 500

+1,100

-4OO

+4,500

0

+8,400

-7,000

-11,100

-11,200

-11,000

-11,200
EEL RIVER BASIN 

Eel River at Hullville, Calif.

459

Location. Lat 39°24', long. 122°58', in NE£ sec. 22, T. 18 N., R. 10 W., on left bank 

U.b mile downstream from Scott Dam, 0.5 mile upstream from Soda Creek, and 0.5 mile 

west of Hullville.

Drainage area. 289 sq mi.

Records available.--November 1922 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 1,800 ft (from topographic map).

Average discharge.--28 years (1923-51), 466 cfs; median of yearly mean discharges, 380 cfs.

Extremes.--Maximum discharge during year, 17,500 cfs Jan. 22 (gage height, 16.53 ft), from 

rating curve extended above 1,900 cfs on basis of computed flow over Scott Dam at various stages; minimum daily, 92 cfs May 4.

1922-51: Maximum discharge, 38,000 cfs Dec. 11, 1937 (gage height, 22.9 ft, from 

floodmarks), from rating curve extended above 3,000 cfs on basis of computed flow over 

Scott Dam; practically no flow at times.

Remarks.--Records good. Flow regulated by Lake Pillsbury (see preceding page). No diversion above station.

Cooperation. Water-stage recorder graph, furnished by Pacific Gas & Electric Co., obtained 

in connection with a Federal Power Commission project.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge In cubic feet per second)

Oct. 1 to Nov. 20 Nov. 21 to Sept. 30

3.1 111

3.5 194

4.0 322

4.5 480

5.0 690

6.0 1,250

B.O 2,860

3.0 

3.5 

4.0 

5.0 

6.0

89

187

340

690

1,250

8.0 2,860

10.0 5,200

12.0 8,380

15.0 14,200

Discharge, in cubic feet per second, water year October 1950 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

26

29

30

31

Total

Mean

Ac- ft

Oct.

252

252

252

252

252

252

252

252

252

255

255

255

258

260

260

260

260

258

*258

258

258

255

255

255

242

206

199

137

113

171

187

7,383

238

14,640

Nov.

235

268

268

268

271

278

286

291

302

302

300

300

297

286

291

388

1,330

1,990

2,230

2,520

5.140

1,930

1,260

890

672

556

507

468

420

439

-

22,983

766

45, 590

Dec.

442

*580

12.000

8,240

3,540

2,910

3,680

3,510

3,320

2,480

2,480

2,150

1,760

3,900

3,350

2,400

1,840

1,480

1,240

1,060

890

780

686

617

574

535

487

458

433

414

594

68,630

2,214

136,100

Jan.

375

366

417

458

*426

388

362

346

343

468

799

845

654

580

736

944

2,110

4,850

3,220

2,120

8,290

15.000

5, 850

3,710

2,720

2,170

1,810

1,530

1,310

1,120

974

63,291

2,042

125,500

Feb.

850

805

1,120

5,220

7.400

3,930

2,760

2,200

1,780

1,620

3,250

3,740

2,600

2,000

1,660

1,400

1,230

1,110

968

890

860

805

745

681

633

594

566

538

_

-

51,955

1,856

103,100

Mar.

528

500

474

521

633

735

902

890

1.540

1,140

926

815

775

800

825

850

800

725

617

462

366

302

263

263

266

266

266

266

266

266

270

18,318

591

36; 330

Apr.

270 270"

270

*270

270

270

270

273

286

286

289

289

298

302

302

302

302

302

298

302

305

305

308

308

314

327

321

270

305

305

-

8,789

293

17,430

May

305

305

282

*92

119

206

273

282

276

282

289

295

295

295

298

206

142

146

150

168

177

180

175

168

168

168

168

168

168

168

165

6,579

212

13,050

June

168

168

168

170

Hi

173

170

168

163

163

165

168

165

165

163

163

161

T61

165

168

168

168

165

165

170

170

170

170

170

170

-

5,014

167

9,950

July

168

168

168

168

168

168

168

168

168

170

175

*175

173

173

173

173

173

170

170

170

170

170

170

170

170

170

170

168

168

170

170

5,273

170

10,460

Aug.

170

170

170

170

170

170

170~ 168

170

170

170

170

173

175

175

177

*177

177

177

177

177

177

177

177

175

175

175

175

175

175

175

5,379

174

10^670

Sept.

173

173

170 170~

175

177

177

175

175

175

175

175

175

175

173

173

173

173

173

*173

173

173

182

217

217

217

217

214

214

214

-

5,516

184

10,940

Calendar year 1950: Max 12,000 Mln 42 Mean 607 Ac-ft 439,500

Water year 1950-51: Max 13,000 Mln 92 Mean 737 Ac-ft 533,800

Discharge measurement made on this day.
4bo EEL RIVER BASIN

Potter Valley powerhouse tailrace near Potter Valley, Calif.

Location. Lat 39°21 T , long. 123°C7', in NW^ sec. 6, T. 17 N., R. 11 W., on right bank 

 1UU 1't downstream from powerhouse of Pacific Gas & Electric Co. , 3 miles northwest of 

town of Potter Valley.

Records available. October 1922 to September 1951.

Gage.--Water-stage recorder and concrete Parshall flume. Altitude of gage is 1,000 ft 

^"from topographic map). Prior to Apr. 13, 1950, recorder at site 50 ft upstream, at 

different datum.

Average discharge.--29 years, 192 cfs.

Extremes.--1922-51: Maximum daily discharge, that of Apr. 12, 14, May 6, 1951; no flow at 

times in several years.

Remarks.--Records good. 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.

Cooperation. Gage-height record furnished by Pacific Gas & Electric Co., in connection 

witn a .federal Power Commission project.

Discharge, in cubic feet per second, water year October 1950 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.

258

270

262

260

262

267

257

248

27?

266

263

267

274

255

294

263

263

263

266

273

260

260

271

262

262

262

288

312

289

313

313

8,395

271

16,650

Nov.

312

BIT

311

311

310

311

311

311

311

311

308

306

306

306

306

306

308

308

308

306

305

37JS

305

305

305

305

306

308

306

305

-

9,233

308

18,310

Dec.

304

304

138

*82

1FT

262

300

299

281

300

300

300

300

299

298

298

274

305

305

302

299

302

304

305

305

306

306

306

306

306

308

8,731

282

17,320

Jan.

305

305

305

305

304

*304

275 30"8

3U6"

308

306

306

305

305

305

305

305

304

304

302

302

3OO

300

302

300

302

302

302

304

306

306

9,398

303

18,640

Feb.

304

302

284

'Sol:

299

299

299

*299

302

302

302

302

304

304

304

304

304

304

305

306

308

308

308

308

308

306

308

308

_

_

-

8,493

303

16,850

Mar.

305

305

305

282

3TT

310

308

310

312

314

314

317

317

317

317

317

317

317

317

317

317

317

316

316

316

316

316

312

308

307

310

9,680

312

19,200

Apr.

308

309

313

314

318

319

3~2T 298

326

328

331

335

333

335

33T

332

331

327

323

326

330

329

329

334

334

334

330

330

332

330

-

9,774

326

19,390

May

330

329

329

328

303

335

332

332

330

326

326

326

326

326

328

246

182

202

TBB" 162

211

188

183

185

203

168

168

206

192

190

191

7,948

256

15,760

June

211

T59

169

201

186

184

178

207

163 IBs198

182

181

182

202

167

167

202

183

182

183

201

166

165

199

183

179

181

201

164

-

5,499

183

10,910

July

164

207

T57

185

187

207

169

166

201

186

*185

185

204

TB~5 164

201

183

182

180

205

167

168

198

181

180

183

201

166

166

197

180

5,701

184

11,310

Aug.

179

184

204

166

165

195

181

182

185

205

167

166

198

182

179

*184

201

163

163

197

182

T52" 212

198

161

161

196

176

180

183

203

5,680

183

11,270

Sept.

163

162

194

178

180

179

199

161

161

196

178

179

213

200

158

160

197

177

177

*176

197

149

T59

203

200

200

199

218

188

197

-

5,498

183

10,910

Calendar year 1950: Max 317 Min 0 Mean 198 Ac-ft 143,200

Water year 1950-51: Max 335 Min 82 Mean 258 Ac-ft 186, 5oO

Discharge measurements made on this day.
EEL RIVER BASIN 461

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

Location. Lat 39°23', long. 123°07', in NE£ sec. 30, T. 18 N., R. 11 W., on left bank 

t>uu rt downstream from Van Arsdale Dam and 5 miles north of town of Potter Valley.

Drainage area. 347 sq mi.

Records available. November 1909 to September 1922 (combined monthly discharge only, of 

hiei Kiver at tnis station and Snow Mountain Water & Power Co.'s tailrace near Potter 

Valley), October 1922 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 1,400 ft (from topographic map).

Average discharge.--28 years (1922-26, 1927-51) 531 cfs, combined flow of Eel River at 

van Arsaaie Jjam and Potter Valley powerhouse tailrace.

Extremes.--Maximum discharge during year, 19,700 cfs Jan. 22 (gage height, 20.0 ft); minimum, 0.2 cfs June 18, Sept. 22.

1909-51: Maximum discharge, about 40,000 cfs Mar. 26, 1928 (gage height, 27.0 ft), 

from rating curve extended above 1,500 cfs on basis of computed flow over Van Arsdale 

Dam; maximum gage height, 30.9 ft Dec. 11, 1937; no flow Nov. 1, 1945.

Remarks. Records good. Water is diverted from Van Arsdale Reservoir through tunnel to 

potter Valley powerhouse (see p. 460 ), 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. Gage-height record,furnished by Pacific Gas & Electric Co., obtained in 

connection with a Federal Power Commission project.

Rating tables, water year 1950-51 (gage height, In feet, and discharge, in

cubic feet per second) 

(Shifting-control method used Oct. 1-28)

Oct. 1 to Dec. 3 Dec. 4 to Sept. 30

3.5

3.6

3.7 

3.9 

4.3 

4.7 

5.0

1.1

2.3

4.0

8.9

24

46

76

5.5

6.0

7.0

9.0

11.0

13.0

17.0

163

293

690

1,930

3,600

5,970

13,200

3.5

3.6

5.0

0.1

.6

2.4

10

29

67

134

5.5

6.0

7.0

9.0

11.0

14.0

18.0

218

350

770

2,080

3,800

7,800

15,300

Discharge, in cubic feet per second, water year October 1950 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.

2.8

2.2

2.2 

2.2

2.4

2.2

1.6

1.9

1.8 

1.4

1.4

1.8

2.2

2.8

4.0

2.9

3.3

3.6

*4.0

3.8

3.4 

3.6 

3.1

3.1

4.4

4.4

9.2

489

m

259

14

1,120.7

36.2

2,220

Nov.

19

32

18 

10

7.2

6.2

5.7

5.0

6.2 

8.3

9.8

8.9

8.0

6.0

4.4

696

1,030

1,670

1,970

2,060

2.850 

1,730 

1,060

681

429

269

217

159

103

135

-

1.5,193. 7

506

30,140

Dec.

141 3T9-

15,000 

*9,740

4,100

3,200

4,050

3,760

3,540 

2,590

2,600

2,240

1,800

4,170

3,510

2,430

1,880

1,470

1,210

994

803 

645 

530

432

365

308

252

212

185

170

146

70,792

2,284

140,400

Jan.

222

121

200 

231

*192

*157

151

115

TT5 

326

897

952

650

502

751

1,020

2,640

5,990

3,700

2,370

9,220 

14,600 

6,640

4,030

2,850

2,230

1,830

1,530

1,280

1,090

916

67,518

2,178

133,900

Feb.

765

700

1,080 

5,630

8,280

4,230

2,820

*2,220

1,780 

1,650

3,670

3,940

2,640

2,050

1,680

1,400

1,220

1,080

904

825

781 

700 

620

534

466

412

371

332

_

_

-

52,780

1,885

104,700

Mar.

308

275

238 

348

526

700

982

*1,010

1,520 

1,270

982

814

730

730

735

745

685

611

482

303

162 

123

58

53

48

43

38

33

31

28

21

14,632

472

29,020

Apr.

21

15

14 

*13

12

10

~T.8 28

8.8 

9.3

8.8

8.3

7.8

12

15

15

16

15

8.3

8.3

8.8 

7.8 

S79- 6.9

6.9

6.9

6.9

22

26

24

376.5

12.6

747

Calendar year 1950: Max 13,000 Min 1.4 Mean 500

May

22

15

15 

*26

*T7

7.3

8.8

9.8

16 

14

14

15

15

14

13

12

13

10

5.6

7.3

7.3 

10 

14

15

14

12

14

6%6

3.1

3.1

2.9

371.8

12.0

737

June

2.3

.3

1.5 

1.8

1.1

1.7

*2.9

3.1

1.1 

3.2

2.1

1.4

1.9

2.3

2.4

.3

1.9

1.4

.6

2.1

5.1 

5.1 

3.2

6.4

4.2

4.8

6.2

7.0

770

5.6

90.0

3.00

179

July

B79" 9.3

6.4 

6.3

6.0

6.6

4.8

7.3

4.5 

3.5

4.1

*4.9

5.5

4.5

7.3

5.7

5.2

6.2

5.8

5.6

4.8 

6.0 

4.6

4.0

4.6

4.4

3.6

1.9

375

2.3

2.4

158.5

5.11

314

Aug.

3.3

3.6

3.6

l.j

2.7

3.2

3.2

4.1 

4.3

1.9

3.8

2.5

2.0

a3

*a3

4.0

2.7

4.8

4.4

4.5 

4.6 

4.7

5.0

3.2

5.6

¥7o

5.2

5.5

5.5

4.9

119.4

3.85

237

Sept.

2.9

3.8

2.6

2.1

2.4

3.7

5.4

3.5

6.4 

4.4

4.1

4.3

4.6

4.1

2.4

5.2

3.5

2.8

3.0

*2.9

2.4 

1.4 

375

3.9

4.9

4.9

6.4

6.0

5.2

6.9

119.6

3.99

237

Ac-ft 362,000

Water year 1950-51: Max 14,600 Min 0.3 Mean 612 Ac-ft 442,800

Discharge measurement made on this day.
462 EEL RIVER BASIN

South Fork Eel River near Branscomb, Calif.

Location. Lat 39°43'30", long. 123 0 38'45" 

Creek and 6 miles north of Branscomb.

on left bank 3 miles downstream from Redwood

Records available. October 1946 to September 1951.

Gage . Water-stage recorder.

Average discharge. --5 years, 143 cfs.

Extremes . --Maximum discharge during year, 7,120 cfs Jan. 21 (gage height, 11.1 ft), from 

rating curve extended above 2,300 cfs by logarithmic plotting; minimum, 1.7 cfs Sept. 

13-16.

1946-51: Maximum discharge, that of Jan. 21, 1951; minimum, 1.4 cfs Sept. 24, 1949.

Remarks . --Records good. No regulation or diversion.

Rating tables, water year 1950-51 (gage height, In feet, and discharge, 

In cubic feet per second)

Oct. 1 to Jan. 17 Jan. 17 to Sept. 30

1.6 

2.4 

4.1 

7.3

12

40

2.0 

2.5 

3.0

4.0

6.0

10.0

90

156

250

493

1,180

2,920

1.0

1.1

1.2

1.3

1.4 

1.6

1.4

3.0

5.9

11

17

25

49

2.0 

2.5 

3.0 

4.0 

6.0 

9.0

115

255

430

880

2,070

4,700

Discharge, In cubic feet per second, water year October 1950 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.

1.9

2.0

2.5

4.1

9.5

8.5

4.7

3.8

3.4

3.2

3,1

3.0

2.8

3.0

3.0

3.4

5.6

8.5

6.9

5.0

4.4

3.8

3.8

4.1

24

57

168

2,200

1,670

1,300

530

6,053.0

195

12,010

Nov.

429

329

257

199

162

137

118

105

96

88

82

77

75

75

83

831

493

545

429

375

322

265

220

186

162

143

159

134

123

164

-

6,863

229

13,610

Dec.

162

201

1,840

1,510

761

800

887

*835

698

513

557

457

482

1,120

828

573

411

317

272

222

190

169

151

140

130

120

112

106

101

105

96

14,866

480

29,490

Jan.

92

182

279

218

192

174

159

159

161

600

1,080

880

545

372

705

788

2,910

*2,640

1,320

880

4.070

2,920

1,320

840

572

430

338

276

231

198

174

25,705

829

50,990

Feb.

152

207

939

4 . 640

2,270

*1,120

770

540

414

380

506

527

446

366

292

255

234

210

180

186

186

*162

150

138

130

120

111

105

_

_

-

15,736

562

31,210

Mar.

101

97

93

278

414

608

658

680

780 58"6

446

344

282

237

204

174

155

138

122

111

*101

97

90

83

78

74

69

65

62

59

55

7,341

237

14,560

Apr.

52

52

50

49

46

45

44

41

40

36

34

32

31

31

31

30

30

30

29

28

27

26

26

25

25

*26

26

140

81

59

-

1,222

40.7

2,420

May

52

49

91

201

145

111

97

88

80

70

69

68

59

53

49

45

*41

40

37

35

34

32

31

30

28

27

25

24

23

22

!i

1,777

57.3

3,520

June

20

19

18

17

17

17

17

17

16

15

14

14

14

14

14

14

14

14

13

13

14

14

13

13

12

12

12

12

11

11

-

435

14.5

863

July

11

11

11

11

11

11

10

9.7

9.7

*9.2

8.2

7.7

7.7

7.3

7.3

6.8

7.3

6.8

6.8

6.3

6.3

5.9

5.9

5.9

5.9

5.9

5.5

5.5

5.1

5.1

5.1

238.9

7.71

474

Aug.

4J.

4.7

4.7

4.7

4.7

4.7

*4.4

4.1

4.1

3.9

3.6

3.6

3.6

3.4

3.2

3.2

3.2

3.2

2.8

2.6

2.8

2.8

2.6

2.6

2.4

2.3

2.3

*2.3

2.3

2.4

2.4

104.3

3.36

207

Sept.

2.4

2.4

£.4

2.3

2.3

2.3

2.4

2.3

2.1

2.1

1.9

1.8

1.8

1.7

1.7

1.9

2.1

2.1

1.9

1.9

1.9

1.9

*1.8

1.8

1.8

1.8

2.3

2.1

2.1

2.6

-

61.9

2.06

123

Calendar year 1950 : Max 2,940 Mln 1.9 Mean 205 Ac-ft 148,100

Water Jateyear 1950-51 1950-51: :Max 4,640 Mln 1.7 Mean 220 Ac-ft 159,500 159,500

Peak discharge (base. 2,000 cfs).--Oct. 29 (8 p.m.) 3,320 cfs (10.9 ft); Nov. 16 (7:30 a.m.) 2,170 

ifs (8.34 ft); Dec. 3 (7 p.m.) 2,650 cfs (9.4 ft); Jan. 17 (11:30 p.m.) 4,400 cfs (8.7 ft); Jan. 21 

2:30 p.m.) 7,120 cfs (11.1 ft); Feb. 4 (12 m.) 5,920 cfs (10.1 ft).

* Discharge mpaaijT'pmpn'h mnrlp nn hh1« rfa\r

. 

Discharge measurement made on this day
EEL RIVER BASIN 463

South Fork Eel River near Miranda, Calif.

Location (revised). Lat 40°10'55", long. 123°46'30", in NW-J- sec. 30, T. 3 S., R. 4 E., on 

rignt bank at sylvandale camp grounds on U. S. Highway 101, 0.5 mile upstream from 

Rocky Glen Creek, 6 miles south of Miranda, and 20 miles upstream from mouth.

Drainage area.--547 sq mi.

Records available.--May 1940 to September 1951.

Gage. Water-stage recorder. Altitude of gage is'250 ft (from topographic map).

Average discharge. 11 years, 1,638 cfs.

Extremes.--Maximum discharge during year, 56,000 cfs Jan. 21 (gage height, 24.1 ft); minimum, 25 cfs Aug. 6.

1940-51: Maximum discharge, 73,200 cfs Dec. 27, 1945 (gage height, 27.73 ft), from 

rating curve extended above 32,000 cfs by logarithmic plotting; minimum observed, 9 cfs 

Oct. 17, 1944.

Remarks.--Records good, 

sion.

Flow slightly regulated by Benbow Dam and powerhouse. No diverRating tables, water year 1950-51 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Jan. 21 Jan. 22 to Sept. 30

2.8

2.9 

3.1 

3.4

4.0

18

40

101

245

680

6.0

9.0

14.0

19.0

3,270

8,140

19,700

36,100

2.5

2.6 

2.8 

3.1

4.0

114

270

920

5.0

8.0

13.0

22.0

1,980

6,340

16,900

47,500

Discharge, in cubic feet per second, water year October 1950 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.

29

*36

64 

109

166

130

113

126

101

87

87

87

64

40

51

62

87

122

101

84

77

67

64

172

599

3,040

27,800

25,900

21,500

8,460

89,454

2,886

177,400

Nov.

5,940

4.S40

3,340

2,600 

2,080

1,720

1,420

1,200

1,030

881

780

716

672

707

710

6,500

4,840

4,220

3,570

3,030

3,240

2,580

2,210

1,880

1,630

1,440

1,680

1,570

1,360

1,490

69,576

2,319

138,000

Dec.

1,790

2,330

22,800

19,300 

9,840

*8,160

9,560

9,680

9,120

6,820

7,510

6,180

5,620

14,000

11,700

7,960

5,760

4,460

3,840

3,240

2,700

2,330

2,040

1,830

1,670

1,500

1,360

1,240

1,140

1,130

1^11.0

187,720

6,055

372,300

Jan..

980

1,050"

2,460

2,710 

2,490

2,120

1,870

1,760

1,830

5,880

8,880

8,420

5,880

4,290

5,860

6,430

16,100

26,000

14,800

9,960

33,000

*55,100

15,600

9,660

6,750

5,160

3,950

3,190

2,660

2,280

1,970

249,100

8,035

494,100

Feb.

1,730

3,140

7,570

45,200 

30,800

13,700

8,920

6,550

5,050

4,880

7,710

7,330

5,750

4,610

3,780

3,150

2,760

2,490

2,160

2,020

*2,080

1,850

1,690

1,560

1,460

1,370

1,300

1,220

-

_

-

181,830

6,4-94

360,700

Mar.

1,180

1,130

1,070

1,370 

2,820

5,440

5,780

5,280

7.58.0

5,350

4,050

3,190

2,620

2,250

1,940

1,710

1,540

1,410

1,300

*1,230

1,150

1,090

1,040

983

938

896

848

800

784

752

720

68,241

2,201

135,400

Apr.

688

656

608

565 

544

516

502

481

460

439

418

397

390

384

372

360

354

354

348

336

318

312

300

*294

300

288

*282

SIT

835 54'4

-

13,256

442

26,290

May

467

411

567

1,260 

1,540

947

784

672

600

558

530

516

495

460

446

425

*404

384

372

354

348

336

330

*324

291

197

270

264

189

168

14,931

482

29,620

June

222 ?I6~

210

205 

200

194

194

194

189

184

174

174

168

168

163

154

140

140

136

132

132

145

145

145

145

136

114

110

T23

127

-

4,879

163

9,680

July

114

T5S

98

106 

110

110

106

106

98

*98

95

91

87

91

83

83

83

83

73

73

73

73

73

76

73

41

66

63

66

66

63.

2,627

84.7

5,210

Aug.

66

63

63

60

33

35

50

53

50

47

47

44

44

41

41

44

41

41

38

38

38

38

38

41

41

*44

44

44

44

44

1,452

46.8

2,880

Sept.

44

44

41

41 

41

41

38-55

38

38

41

38

38

38

38

38

41

41

41

41

38

38

38

38

38

41

38

38

41

47

-

1,194

39.8

2,370

Calendar year 1950: Max 27,800 Min 27 Mean 2,215 Ac-ft 1,604,000

Water year 1950-51: Max 45,200 Min 29 Mean 2,423 Ac-ft 1,754,000

Peak discharge (base, 28,000 cfs). --Oct. 28 (2- p.m.) 35,000 cfs (18.7 ft); Dec. 3 (7 p.m.) 28,100

cfs U6.7 ft); Jan. 18 ^7 a.m.) 32,200 cfs (17.91 ft); Jan. 21 (9 p.m.) 56,000 cfs (24.1 ft); Feb. 4

Discharge measurement made on this day.
464 EEL RIVER BASIN

Eel River at Scotia, Calif.

Location. Lat 40°29'30", long. 124°05'5S", in SW^ sec. 5 (revised), T. 1 N., R. 1 E.,

 near center of span in left pierof bridge on U. S. Highway 101, 0.5 mile north of 

Scotia,and 6 miles upstream from Van Duzen River.

Drainage area. 3,070 sq mi, approximately.

Records available. December 1910 to February 1915, October 1916 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 36.15 ft above mean sea level, datum of

 TT929. 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 . 38 years (1911-14, 1916-51), 6,288 cfs.

Extremes. Maximum discharge during year, 249,000 cfs Jan. 22 (gage height, 45.39 ft); min-

 imum, 91 cfs Oct. 3.

1910-15, 1916-51: Maximum discharge, 345,000 cfs Dec. 11, 1937 (gage height, 55.1 

ft); maximum stage observed, 55.5 ft Feb. 2, 1915; minimum discharge observed, 10 cfs 

Aug. 12-14, 1924.

Remarks.--Records good except those for periods of doubtful or no gage-height record,

 wnicn are fair. Plow slightly regulated by Lake Pillsbury (see p. 458 ) and by diversion 

through Potter Valley powerhouse (see p. 460).

Revisions (water years).--W 931: 1938.

Rating table, water year 1950-51 (gage height, in feet, and discharge,

in cubic feet per second) 

(Shifting-control method used July 28 to Sept. 11)

8.7

9.0

9.4

10

150

340

790

2,210

6,100

14,400

30,900

58,000

93,000

209,000

Discharge, in cubic feet per second, water year October 1950 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.

97

94 

91

1(30"

126

178

226

*255

255

245

260

265

245

230

222

199

182

182

186

199

212

217

212

204

212

734

6,460

60,700

100,000

90,200

32,500

295,488

9,532

586,100

Nov.

18,300

15, 400 

11,300

8,850

7,130

5,880

5,000

4,300

3,780

3,350

2,990

2,740

2,520

2,440

2,200

2,500

17,000

14,000

13,000

12,000

11,500

10,500

9,600

8,800

8,000

7,500

7,100

6,800

6,300

5,900

-

236,680

7,889

469,400

Dec.

5,400

5,000 

43,000

125,000

54,400

*33,200

40,200

41,200

39,000

31,000

27,800

26,800

21,200

48,000

58,400

36,400

25,800

19,600

16,200

14,100

11,900

10,300

9,090

8,300

7,500

7,100

6,600

6,100

5,800

5,400

5,100

794,890

25,640

tl,577

Jan.

4,900

4,700 

6,3oO

8,800

7,300

6,800

6,300

5,900

5,400

5,700

14,500

27,000

21,000

18,000

16,000

21,500

29,000

96,500

116,000

70,500

68,500

199,000

*94,400

50,500

35,000

26,300

21,200

17,500

14,900

12,900

11,200

U, 043 . 5

33,660

t2,070

Feb.

10,000

10,400 

17,400

101,000

156,000

65,400

39,100

29,900

22,800

19,100

26,300

35,900

26,900

"20 , 500

16 , 700

14,100

12,300

11,400

10,200

9,140

9,380

8,960

8,050

7,440

6,890

6,460

6,010

*5,660

_

_

-

713,390

25,480

tl,415

Mar.

5,370

5,110 

4,800

5,440

8,440

11,600

15,900

15,600

22,50O

19,000

14,200

11,600

10,200

9,380

8,880

8,460

8,070

7,320

6,680

6,240

5,790

5,460

5,090

4,720

4,420

4,100

*3,760

3,610

3,480

3,290

3,110

251,620

8,117

499,100

Apr.

2,950

2,760 

2,640

2,560

2,470

2,460

2,490

2,490

2,470

2,460

2,490

2,490

2,370

2,320

2,310

2,160

2,110

2,150

2,050

1,910

1,780

1,750

1,700

1,700

1,650

1,600

1,550

2,020

4,440 3*, 100"

-

69 , 400

2,313

137,700

May

2,730

*2,320 

2,930

5,240

7,710

6,060

4,920

4,2OO

3,570

3,200

3,010

2,880

2,830

2,570

2,340

2,150

2,000

1,880

1,830

1,770

1,750

1,700

1,650

1,600

1,400

1,200

1,300

1,250

1,100

1,OOO

889

80,979

2,612

160,600

June

889

BS7 

823

780

742

733

695

686

670

652

636

610

602

580

572

565

535

500

479

458

446

432

426

420

413

406

4OO

382

358

552

-

17,109

570

33,940

July

346 33"4" 

324

302

290

296

275

270

270

270

270

265

255

*240

235

235

230

217

212

208

199

199

194

186

182

182

178

162

158

158

154

7,296

235

14,470

Aug.

146

T2S 

140

143

143

132

140

129

112

112

112

109

109

109

106

106

106

103

103

106

100

94

85

85

85

85

85

*82

80 HZ

91

3,366

109

6,680

Sept.

94

1(30 

106

112

122

129

129

140

140

146

186

T5T5

146

150

154

154

154

150

150

146

146

143

143

143

143

146

146

150

146

150

-

4,214

140

8,360

Calendar year 1950: Max 125,000 Win 80 Mean 9,022 Ac-ft 6,532,000

Water year 1950-51: Max 199,000 Min BO Mean 9,638 Ac-ft 6,978,000

Peak discharge (base, 61,000 cfs). --Oct. 29 (5 a.m.) 121,000 cfs (33.33 ft); Dec. 4 (about 7 a.m.)

160,000 cfs ^37.37 ft); Dec. 15 (12:30 a.m.) 69,9OO cfs (26.7 ft); Jan. 18 (12 p.m.) 141,000 cfs

(35.5 ft); Jan. 22 (about 9 a.m.) 249,000 cfs (45.39 ft); Feb. 5 (5 a.m.) 193,000 cfs (40.55 ft).

Discharge measurement made on this day.

t Expressed in thousands.

Note. Doubtful or no gage-height record Nov. 15 to Dec. 4, Dec. 24 to Jan. 21, Mar. 19 to May 30; 

discharge estimated on basis of recorder graph, weather records, and records for South Fork Eel 

River near Miranda, Calif.
EEL RIVER BASIN 465

Van Duzen River at Brldgeville, Calif.

Location. Lat 40°28'05", long. 123°47'55", in NW£ sec. 13, T. 1 N., R. 3 E., near center 

or span on upstream side of highway bridge at Bridgeville, 1 mile downstream from Little 

Larrabee Creek.

Drainage area.--200 sq mi.

Records available.--September 1911 to August 1913, December 1939 to September 1951 (discontinued).

Gage.--Wire-weight gage and crest-stage indicator; gage read twice daily, with additional 

readings during periods of high water. Datum of gage is 590.66 ft above mean sea level, 

datum of 1929. Prior to December 1939, staff gage at different datum. Crest-stage 

indicator installed December 1941.

Average discharge.--12 years (1911-12, 1940-51), 718 cfs.

Extremes. Maximum discharge during year, 18,600 cfs Oct. 28 (gage height, 23.6 ft); minimum observed, 5.4 cfs Sept. 16-18.

1939-51: Maximum discharge, 21,600 cfs Jan. 21, 1943 (gage height, 25.5 ft, from 

floodmarks), from rating curve extended above 12,000 cfs by logarithmic plotting; minimum observed, that of Sept. 16-18, 1951.

Remarks. Records fair. No storage or large diversion.

Rating tables, water year 1950-51 (gage height. In feet, 

and discharge, In oublo feet per second)

Oct. 28 to Sept. 30

2.5

2.6 

2.8 

3.0

5.0

7.0

14

25

3.4 

4.0 

4.5 

5.0

125

202

325

6.0

8.0

10.0

720

1,760

3,040

Z.2 

2.4 

2.8 

3.3 68

4.0 

4.5 

5.0 

7.0

155

240

390

1,370

10.0

15.0

21.0

3,040

7,380

14,800

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

6.4

6.4

7.3 

23

45

75

46

*55

29 

24

21

18

16

15

15

15 

19si

29

28

26

24

21

20

45

465

2,590 

1.2,900

15.600

8,560

2,860

0., 615.1 

1,342 

82,540

Nov.

2,280

1,620

1,220 

990

850

700

600

512

462 

408

370

350

322

545

648

*6.590 

2,740

2,800

1,990

1,940

1,970

1,480

1,250

1,010

890

770

1, 590 

1,000

855

1,140

-

59,650 

1,322 

78,640

Dec.

1,240

1,580

9.210 

6,820

5,040

5,280

5,680

5,920

5,680 

2,470

3,220

2,290

2,080

7,460

5,500

2,920

2,150

1,670

1,420

1,170

970

870

790

695

620

580

545 

516

507

615

570

76,076 

2,454 

150,900

Jan.

520

768

1,340 

1,780

1,500

1,150

940

870

1,040 

*2, 500

*2,590

1,930

1,470

1,770

2,850

2,560 

6,810

7,180

5,680

2,580

12.200

9,500

5,290

5,590

2,560

1,990

1,640 

1,580

1,200

990

885

86,435 

2,788 

171, 400

Feb.

770

1,120

2,580 

11.900

*7,580

5,760

2,860

2,550

1,720 

1,920

4,080

5,080

2,160

1,670

1,590

1,110 

1,020

925

800

765

800

720

660

570

558

502

462 

455

_

-

-

58,227 

2,080 

115,500

Mar.

408

582

554 

645

1,100

1,050

1,210

1,770

2.550 

1,520

1,170

1,080

1,140

1,250

*1,280

1,260 

1,020

900

805

770

750

670

590

543

489

455

444 

412

599

574

522

27,070 

875 

55,590

Apr.

505

280

270 

260

265

*252

248

244

240 

256

234

224

215

206

196

184 

180

176

172

164

155

147

158

153

155

127

124 

692

740

543

7,485 

249 

14,840

May

426

417

870

'920

750

556

507

426 

550

574

426

599

558

306

275 

242

216

202

189

180

168

158

152

145

155

128 

125

117

110

104

10,819 

549 

21,460

June

101

87 

85

82

78

76

74

72 

68

66

63

59

57

54

52

50

48

45

44

42

41

40

58

*57

56

34 

55

31

~

1,719 

57.3 

5,410

July

29

28

27 

27

27

26

26

25

24 

24

23

22

20

20 19

18 

17

17

16

16

16

16

16

15

15

14

14 

13 13"

13

13

609 

19.6 

1,210

Aug.

12

12

11 

11

11

10

*10

9.6

9.6 

9.6

9.6

9.6

9.6

9.6

9.6

9.6 

9.6

9.6

9.6

9.6

*9.6

9.2

8.9

8.6

8.2

7.8

7.5 

7.2

fi

6.9

289.5 

9^34 

574

Sept.

6.9

6.9

6.9 

6.9

6.9

6.9

7.2

7.2

7.2 

6.9

6.5

6.0

6.0

5.7

5.7

5.7 

5_.4

*5.4

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7

5.7 

5.7

6.6

.9.,, 6

189.3 

6.31 

575

Calendar year 1950: Max 15,600 Mln 5.8 Mean 1,056 Ac-ft 750,400

Water later year year 1950-51: 1950-51: Max Max 15,600 15,600 Mln Mln 5.4 5.4 Mean Mean 959 959 Ac-ft Ac-ft 694,500 694,500

Peak discharge (base. 8.500 ofs). Oct. 28 (9 a.m.) 18,600 ofs (23.6 ft)j Nov. 16 (7 a.m.) 10,600 

!fs (17.8 ft)j Dec. 5 [ll a.m.) 10,800 ofs (18.0 ft); Dec. 14 (7 a.m.) 8,670 ofs (16.2 ft); Jan. 17 

9 p.m.) 10,600 cfs (17.8 ft); Jan. 21 (5 p.m.) 17,000 ofs (22.55 ft); Feb. 4 (12 m.) 14,200 cfs

(20.6 20.6 f ft). t I .

* Discharge measurement made on this day
466 EEL RIVER BASIN

Van Duzen River near Bridgeville, Calif.

Location. Lat 40°27'50", long. 123°51'25", in Ei sec. 17, T. 1 N., R. 3 E. , on downstream 

siae 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 1951.

gage. Water-stage recorder. Altitude of gage is 400 ft (from topographic map)

Extremes.--teximum discharge during year, 20,000 cfs Oct. 28; minimum, 6.2 cfs Sept. 23, 24.

Remarks.--Records fair prior to War. 10, good thereafter. No storage or large diversion.

Rating tables, water year 1950-51 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Feb. 23 to Mar. 4)

Oct. 1 to Mar Mar. 10 to Sept. 30

5.0 

5.5 

6.0 

7.0

385

630

910

1,300

2,350

8.0 3,620

10.0 6,820

12.0 10,200

15.0 15,800

3.1 

3.3 

3.5 

3.8 

4.2

6.6

18

170

4.5 

5.0 

5.5 

6.0 

7.0

280

510

850

1,310

2,350

Discharge, In cubic feet per second, water year October 1950 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.

7

7

8

25 

49

81

50

38

32

26

23

20

18

17

16

16 

21

34

32

31

28

26

23

22

49

500

2,770

13,800

14, 500

9,200

3,060

44,529

1,436

88,320

Nov.

2,440

1,730

1,300

1,060 

890

750

640

550

490

440

400

370

340

3TO

700

7,050 

2,330

3,000

2,100

1,920

2,050

1,440

1,150

966

838

752

1,320

966

826

1,050

-

40,828

1,361

80,980

Dec.

1,280

1,860

10,000

6,660 

3,240

3,420

*4, 100

4,240

3,730

2,540

3,340

2,380

2,050

7,570

5,990

3,260 

2,270

1,710

1,410

1,210

1,020

892

802

730

675

630

580

562

5"S1T

650

650

80,237

2,588

159,100

Jan.

550" 562

1,400

1,980 

1,570

1,140

959

880

1,030

2,990

*2,920

2,110

1,570

1,810

3,120

2,480 

7,520

7,520

3,960

2,760

13,100

9,956

5,660

3,630

2,740

2,130

1,750

1,480

1,280

1,060

950

92,861

2,996

184,200

Feb.

820

1,200

2,760

*12,700 

*7,S50

3,750

2,890

2,310

1,760

2,000

4,240

*3,330

2,260

1,730

1,390

1,150 

1,020

952

820

814

850

746

675

615

585

548

515

487

_

-

60,567

2,163

120,100

Mar.

455

430

410

661 

1,140

1,040

1,240

1,820

2,710

1,580

1,220

1,070

1,120

1,250

*1,290

1,220 

966

826

770

728

686

612

552

500

480

455

425

396

383

365

318

27,138

875

53,830

Apr.

316

300

284

280 

*280

280

268

260

256

252

248

236

230

226

212

205

198

194

184

177

164

158

152

146

146

ISO" 140

642

742

BoT

-

7,821

261

15,510

May

396

378

862

*1.180 

882

693

558

475

415

370

374

415

401

*352

316

288 

260

244

230

216

198

188

177

164

155

149

140

135

130

122

118

10,981

354

21,780

June

115 To"B"

100

95 

92

88

86

82

80

76

72

68

67

64

61

58 

55

54

53

49

47

45

44

42

*41

40

38

36

34

33

-

1,923

64.1

3,810

July

32

3T

30

30 

30

30

29

28

27

27

26

24

23

22

22

20 

19

19

18

18

18

18

18

18

18

18

16

16

15

15

11

689

22.2

1,370

Aug.

14

T3

13

13

13

13

*12

12

12

12

12

11

11

11

11

11 

11

11

11

11

*11

11

10

10

10

10

10

9.0

9.0

8.6 B7B345.2

11. 1-

685

Sept.

8.6

9.0

9.0

8.6 

8.6

8.6

8,6

8.6

8.6

8.6

8.6

8.1

8.1

7.6

7.1

7.1 

7.1

*6.6 676-

6.6

6.6

6.6

6.6

6.6

6.6

6.6

6.6

7.1

8.1

10

-

231.7

7.72

460

Calendar year 1950: Max - Mln - Mean - Ac-ft -

Water year 1950-51: Max 14,500 Mln 6.6 Mean 1,009 Ac-ft 730,100

Peak discharge (base, 9.100 efs). Oct. 28 (10 a.m.) 20,000 efs; Nov. 16 (8 a.m.) 12,000 efs; Dee. 

(12 m.) 12,400 cfs (13.20 ft); Dec. 14 (8 a.m.) 9,210 cfs (11:45 ft); Jan. 17 (10 p.m.) 11,800 cfs 

2.89 ft); Jan. 21 (4 p.m.) 18,000 cfs (16.10 ft); Feb. 4 (2 p.m.) 14,700 cfs (14.45 ft). 

* Discharge measurement made on this day. Note. No gage-height record Oct. 1 to Nov. 19 and " "" ' - "-1- ' "--<- -- < « *--J K...-I*. 

jf records for station at Bridgeville.

Jan. 20 to Feb. 4; discharge estimated on basis
MAD RIVER BASIN 467

Mad River near Arcata, Calif. 

Location.--Lat 40°54<30", long. 124°03'00", in NWiNE-J- sec. 15, T. 6 N., R. 1 E., Humboldt

Meridian, on right bank 0.5 mile downstream from Warren Creek, 0.6 mile upstream from

bridge on U. S. Highway 299, and 3.1 miles northeast of Arcata. 

Drainage area.--485 sq mi (revised).

Kecords available. December 1910 to September 1913, August 1950 to September 1951. 

(jage.--Water-stage recorder. Altitude of gage is 30 ft (from topographic map). December

 1910 to September 1913, staff gage at site 0.5 mile downstream at different datum. 

Extremes. Maximum discharge during period August 1950 to September 1951, 35,000 cfs Feb.

 4 (gage height, 17.65 ft); minimum, 16 cfs Sept. 8, 9, 1951.

1910-13, 1950-51: Maximum discharge, that of Feb. 4, 1951; minimum, that of Sept. 8, 

9, 1951. 

Remarks.--Records good except those for period of no gage-height record, which are fair.

 Flow slightly regulated by city of Eureka reservoir. No diversion above gage.

Rating tables, Aug. 16, 1950, to Sept. 30, 1951 (gage height, In feet,

and discharge, In cubic feet per second) 

(Shifting-control method used Feb. 5-27, Mar. 9 to Apr. 28)

Aug. 16, 1950, to Feb. 4, 1951 Feb. 5 to Sept. 30, 1951

16

90

180

370

5.0 2.0

2.1

2.2 

2.5

3.0 

4.0 

5.0

164

422

770

1,580

Note. Same as preceding 

table above 6.0 ft.

Discharge, In cubic feet per second, 1950-51 

1950

Day

1

2

3

4

5

6

7

8

Ac-ft

Aug.

_

_

_

_

_

_

_

-

Sept.

20

20

20

20

20

20

20

20

Day

9

10

11

12

13

14

15

16

Aug.

_

_

_

_

_

_

(*)

26

Sept.

20

20

19

18

19

19

19

19

Day

17

18

19

20

21

22

23

24

Aug.

26

25

25

24

25

23

23

22

Sept.

19

19

19

18

18

18

19

*19

Day

25

26

27

28

29

30

31

Aug.

22

21

22

23

21

21

21

_

-

Sept.

23

 23 24

21

21

20

-

19.8

1,180

Discharge measurement made on this day.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac-ft

Oct.

20

75

27

*32 

46

121

121

82

60

48

42

38

34

33

31

32

34

34

34

42

42

38

33

31

40

204

1,790

20,200

23,500

18,000

6,580

71,389

2,303

141,600

Nov.

4,130

2,860

1,960

1,350 

974

750

549

418

332

260

212

180

156 T6"5

197

6,980

5,600

5,100

4,270

3,210

3,460

2,580

1,950

1,480

1,170

934

1,650

1,460

1,100

1,390

-

56,828

1,894

112,700

Dec.

2,380

2,380

18,000

17,900 

8,310

7,540

9,120

8,060

7,050

5,410

5,460

4,980

4,100

12,000

10,300

6,640

4,660

3,410

2,600

2,150

1,780

1,500

1,300

1,140

998

870

766

710

W%

1,100

1,360

154,780

4,993

307,000

Jan.

1,030

1,140

3,020

3,540 

3,240

2,280

1,840

1,670

1,770

a5,000

a6,500

a5, 500

3,680

3,160

5,600

5,920

16,900

20,500

11,200

7,080

18,000

23,400

13,000

9,360

6,880

5,140

4,050

3,130

*2,490

2,090

1,750

199,860

6,447

396,400

Feb.

1,500

1,570

2,840

*29,700

*8,810

5,960

4,420

3,020

2,580

4,400

6,000

4,130

3,160

2,530

2,160

1,930

1,980

1,750

1,650

1,920

1,680

1,440

1,300

1,230

1,150

1,040

 958~

_

-

120,608

4,307

239,200

Mar.

887

*832

795

2,270 

4,180

3,700

4,540

3,760

5,900

3,900

2,820

2,360

2,230

2,490

2,600

2,580

2,130

1,840

1,670

1,570

1,430

1,280

1,140

1,030

966

*901

844

800

761

734

693

63,633

2,053

126,200

Apr.

668

629

604

590 

587

554

535

516

481

465

449

410

392

380

359

345

*337

328

320

303

285

272

259

242

228

220

723

750

1,610

1,340

-

14,681

489

29,120

May

*990

880

1,120

2,220

1,760

1,390

1,160

982

832

743

795

1,280

1,300

982

815

717

654

598

554

526

494

465

446

425

401

383

362

351

331

317

309

24,582

793

48,760

June

296

75D

270

257 

244

235

220

206

235

176

162

152

152

146

140

136

128

124

120

118

112

110

108

100

96

*96

94

90

88

84

-

4,785

160

9,490

July

120 ~Sl

77

73 

70

66

65

60

60

58

58

55

52

49

49

46

45

43

40

39

39

35

33

36

36

35

35

34

34

33

32_

1,591

51.3

3,160

Aug.

*30" 32

30

29 

29

28

28

27

28

27

26

26

25

24

23

23

21

22

22

22

*22

21

22

21

21

20

20

19

T5

19

19

745

24.0

1,480

Sept.

19

19

19

19 

19

19

19

17

TT

17

17

17

19

*19

18

18

18

18

17

17

17

17

17

17

18

18

18

18

19

25

-

546

18.2

1,080

Calendar year 1950: Max - Mln - Mean - Ac-ft

Water year 1950-51: Max 29,700 Mln 17 Mean 1,956 Ac-ft 1,416,000

Peak discharge (base, 14,000 cfs).--Oct. 28 (1:30 p.m.) 29,000 cfs (16.32 ft); Dec. 3 (4:30 p.m.) 

26.600 cfs (15774 ft); Dec. 14 (12:30 p.m.) 14,800 cfs (12.59 ft): Jan. 18 (1 a.m.) 27,800 cfs (16.04 

ft); Jan. 21 (8:30 p.m.) 33,100 cfs (17.23 ft); Feb. 4 (7:30 p.m.) 35,000 cfs (17.65 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of hydrographlc comparison with Van Duzen 

River near Brldgevllle.
KLAMATH RIVER BASIN

Sprague River near Chiloquin, Oreg.

Location.--Lat 42°35', long. 121°51', in NE^ sec. 35, T. 34 S., R. 7 E., on right bank l£ 

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 1951. Prior to August 1931, published as "at 

Mcfjreaay Hanch, near Chiloquin."

Gage.--Water-stage recorder. Datum of gage is 4 ,202.43 ft above mean sea level, datum of

 T929, supplementary adjustment of 1947. Prior to Aug. 14, 1931, staff gage at site 

12 miles upstream at different datum.

Average discharge.--30 years (1921-51), 470 cfs.

Extremes.--Maximum discharge during year, 2,420 cfs Apr. 21 (gage height, 4.40 ft); mini-

 mum, 146 cfs July 28, 29.

1920-51: 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 period of no gage-height record, which are fair, 

ana periods of ice effect, which are poor. Diversions above station for irrigation; 

regulation by ponding at irrigation dams.

Cooperation.--Water-stage recorder inspected by employee of The California Oregon Power Co. 

Revisions (water years). W 1011: 1943(M).

Rating table, wate^ year 1950-51, except periods of Ice effect 

(gage height, In feet, and discharge, In cubic feet per second)

1.3 140

1.5 207

2.0 450

2.5 760

3.0 1,140

4.0 2,020

4.4 2,420

Discharge, in cubic feet per second, water year October 1950 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.

244 24"8~

252

262

266

270

270

270

293

395

323

284

275

275

275

275

280

280

275

280

288

288

284

280

280

284

298

318

343

385

428

9,068

293

17,990

Nov.

456

516

528 TT4"

450

439

422

385

364

353

343

338

328 378"

328

338

338

359

364

359

428

504

*510

498

468

439

422

406

400

406

-

12,291

410

24,380

Dec.

412

406

439

385 5TO"

522

642

732

900

1,080

1,310

al , 500

al,650

al,6S6

al,500

al,350

al,400

1,510

1,610

1,480

1,200

948

830

753

697

660

624

594

570

552

552

28,968

934

57,460

Jan.

552

534

492

516

516

b450

b410

395

412

450

468

462

428

434

400

b400

b400

b380

b370

b550

406

385

*450

486

522

588

678

788 b5~B"0"

b400

b500

14,572

470

28,900

Feb.

b600

b600

b500

516

588

746

996

1,140

1,280

1,470

1,750

1,950

2,040

2,130

2.160

2,050

1,870

1,670

1,440

1,280

1,120

980

900

837

788

739

711

690

_

-

33,541

1,198

66,530

Mar.

648

636

606

588

540

BT6" 474

588

576

552

546

522

522

594

*690

816

916

1,030

1,080

1,080

1,110

1,180

1,290

1,500

1,730

1,880

1,890

1,8'SO

1,860

1,810

1,740

31,390

1,013

62,260

Apr.

1,690

1,660

1,590

1,520

1/530

1,600

1,680

1,820

1,940

2,010

2,040

2,070

2,110

2,170

2,220

2,260

2,280

2,320

2,350

2,400

2,410

2,400

2,360

2,280

2,190

2,080

1,970

1,950

1,890

1,830

-

60,620

2,021

120,200

May

1,820

1,930

1,980

1,8'SO

1,720

1,610

1,570

1,550

1,560

1,650

*1,790

1,790

1,680

1,580

1,550

1,580

1,600

1,600

1,520

1,430

1,340

1,270

1,220

1,180

1,140

1,120

1,090

1,060

1,040

1,000

964

45,814

1,478

90,870

June

932

1593"

851

802

704

666

660

636

582

528

522

510

474

456

456

444

434

395

395

400

395

395

385

318

313

338

333

288

280

275

-

15,060

502

29,870

July

284

293 5B"0

275

266

*266

262

266

262

262

257

252

252

244

236

232

228

262

240

248

236

211

207

175

165

168

165

152

149 T5B"

162

7,113

229

14,110

Aug.

196

211

200

196

200

211

211

203

203

207

215

215

193 T9~3"

196

196

207

207

207

207

203

200

203

207

211

223

223

228

75F

223

*223

6,446

208

12,790

Sept.

223

75F

228

232

232

232

232

232

232

232

232

228

228

228

228

240

280 752"

252

252

252

252

248

244

248

248

248

252

257

266

-

7,248

242

14,380

Calendar year 1950: Max 1,650 Mln 160 Mean 562 Ac-ft 406,500

Water year 1950-51: Max 2,410 Mln 149 Mean 746 Ac-ft 539,700

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of weather records and records for Wllllamson 

River below Sprague River near Chiloquin, Oreg. 

b Stage-discharge relation affected by Ice.
KLAMATH RIVER BASIN 469

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 

or a mile downstream from Sprague River and three-quarters of a mile southwest of 

Chiloquin.

Drainage area.--3,OOP sq mi, approximately. 

Records available. June 1917 to September 1951.

Gage. Water-stage recorder. Datum of gage is 4,155.55 ft above mean sea level, datum of 

T929. Prior to Aug. 31, 1923, water-stage recorder at same site but at different datum.

Average discharge.--34 years, 870 cfs.

Extremes. Maximum discharge during year, 3,200 cfs Apr. 21 (gage height, 4.75 ft); minimum, 468 cfs July 28, 29.

1917-51: Maximum discharge, 7,660 cfs Apr. 1, 1943 (gage height, 7.29 ft); minimum, 

320 cfs Oct. 14, 1920.

Remarks.--Records good. Diversions above station for irrigation. Manipulation of gates 

at aam above station causes fluctuation at times.

Cooperation.--Water-stage recorder inspected by employee of The California Oregon Power

Revisions (water years). --W 981: 1938(M).

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

2.1 

2.5 

3.0

440

700

1,110

3.5 

4.0 

4.8

1,580

2,160

3,280

Discharge, in cubic feet per second, water year October 1950 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.

"555 562 

576

583

597

590

590

597

604

724

662

611

604

597

597

597

611

604

604

604

611

611

604

604

611

611

632

685

692

740

772

19,256

621

38,190

Nov.

804 

876

876

828

804

780

764

716

692

678

670

662

56T

662

670

716

708

716

740

724

772

876

*892

575

852

820

804

788

788

796

-

23,012

767

45,640

Dec.

796 

796

860

9~B5 788

940

1,090

1,190

1,380

1,580

1,840

2,060

2,240

2,240

2,080

1,960

2,000

2,150

2,280

2,150

1,860

1,590

1,470

1,390

1,340

1,300

1,250

1,230

1,180

1,170

1,160

46,268

1,493

91,770

Jan.

1,160 

1,140

1,070

1,080

1,070

996

980

972

980

1,010

1,030

996

972

980

948

948

956

900

884

836

884

868

*908

964

1,010

1,080

1,180

1,270

1,000

852

932

30,856

995

61,200

Feb.

1,060 

1,060

980

l.BTff

1,100

1,220

1,480

1,680

1,840

2,080

2,370

2,560

2,700

2,800

2,870

2,800

2,640

2,420

2,190

2,020

1,850

1,710

1,590

1,550

1,510

1,460

1,410

1,390

_

-

51,350

1,834

101,900

Mar.

1,340 

1,320

1,270

1,250

1,140

1,040

1,060

1,150

1,130

1,080

1,070

1,070

1,080

1,170

*1,290

1,450

1,550

1,680

1,760

1,780

1,820

1,920

2,060

2,290

2,560

2,730

2,770

2,770

2,770

2,700

2,630

52,700

1,700

104,500

Apr.

2,620 

2,590

2,520

2J, 480

2|,480

2,530

2,660

2,780

2,900

2,950

2,950

2,950

2,970

3,020

3,060

3,070

3,070

3,100

3,120

3,160

3,180

3,180

3,130

3,060

2,950

2,830

2,700

2,730

2,670

2,600

-

86,010

2,867

170,600

May

2,570 

2,670

2.760

2,660

2,480

2,370

2,330

2,300

2,320

2,410

*2,570

2,550

2,420

2,320

2,290

2,320

2,330

2,320

2,250

2,140

2,030

1,930

1,850

1,780

1,730

1,690

1,650

1,600

1,560

1,530

1,480

67,210

2,168

133,300

June

1,440 

1,400

1,340

1,290

1,190

1,140

1,130

1,090

1,040

980

972

956

916

884

892

844

820

780

764

748

740

724

716

648

625

655

648

604

583

5W

-

27,149

905

53,850

July

590 

604

557

597

590

*583

583

583

583

576

569

576

569

555

549

543

537

569

569

569

555

525

525

501

484

484

490

473

TTS

478

484

16,963

547

33,650

Aug.

513 

543

569

552

549

543

525

519

519

531

531

537

513

507

517

519

519

519

519

519

525

525

525

525

531

549

549

555

549

537

*537

16,476

531

32,680

Sept.

543 

537 '537

549

562

562

562

562

555

555

549

549

549

549

549

555

597 576-

576

583

576

569

569

569

576

569

569

576

576

597

-

16,902

563

33,520

Calendar year 1950: Max 2,280 Min 473 Mean 985 Ao-ft 712,700

Water year 1950-51: Max 3,180 Min 473 Mean 1,244 Ac-ft 900,800

* Discharge measurement made on this day. 

256498 O - 53 - 31
470 KLAMATH RIVER BASIN

Cascade Canal near Fish Lake, Qreg.

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 Pish 

Lake, and 10 miles downstream from point of diversion.

Records available.--June 1924 to September 1951 (irrigation seasons only).

Gage.--Water-stage recorder. Altitude of gage is 5,235 ft (by barometer). Prior to May 

2"6, 1926, staff gage at same site and datum.

Extremes.--1924-51; Maximum daily discharge, 54 cfs June 5-7, July 10, 11, 1934; no flow

Remarks. Records good except those for periods of no gage-height record, which are poor. 

Water stored in Fourmile Lake Reservoir was released to canal during period May 26 to 

Aug. 29. Canal diverts water from Fourmile Creek, in Klamath River basin, and discharges into lava bed l| 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 Fish Lake.

Cooperation. Water-stage recorder inspected by employee of Medford Irrigation District.

Discharge, in cubic feet per second, May to August 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. ' Mar. Apr. May

_

_

-

-

-

_

-

_

_

-

_

-

_

_

-

_

_

_

_

-

.

_

_

_

-

alO

26

31

30

29

31

_

_

-

June

38

?T

44

45

45

45

45

45

46

4T

45

45

46

46

45

44

45

45

44

*44

45

44

44

44

45

45

45

46

46

46

-

1,341

44.7

2,660

July

46

46

46

46

46

47

47

47

47

46

46

46

47

47

47

48

43

4?

*4T

47

47

48

48

48

48

48

48

48

48

48

48

1,459

47.1

2,890

Aug.

49

49

49

48

48

48

48

a48

a48

a47

a46

a46

53

5?

52

50

aSO

a50

g50

a51

g*52

a48

a48

a48

a47

a46

a45

a44

alO

aO

a!T

1,370

44.2

2,720

Sept,

Calendar year : Max Min 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 unpublished records for station at Pourmile Lake.

g Computed from once-daily staff-gage reading.
KLAMATH RIVER BASIN 471 

"A" Canal at Klamath Falls, Oreg.

Location. Lat 42°14', long. 121°48', in NEij sec. 30, T. 38 S., R. 9 E., on left bank 

300 feet downstream from head gates of canal and 1 mile northwest of Klamath Falls.

Records available.--October 1910 to September 1951.

Gage. Water-stage recorder. Datum of gage is 4,126.22 ft above mean sea level, Bureau of 

Tfeclamation datum (levels by Bureau of Reclamation). Prior to May 1, 1923, water-stage 

recorder at site three-quarters of a mile upstream at head of tunnel and at different 

datum. May 1, 1923, to Apr. 20, 1924, water-stage recorder a quarter of a mile upstream 

just below tunnel at different datum. Apr. 21, 1924, to Apr. 14, 1925, inclined gage 

at present site and datum, on right bank.

Average discharge.--41 years, 206 cfs.

Extremes. Maximum daily discharge during year, 1,060 cfs July 17, 18; no flow Oct. 1 to 

1910-51: Maximum daily discharge, 1,100 cfs June 22, 1945; no flow at times.

Remarks. - -Records good. Canal diverts water from Upper Klamath Lake in NE-J- sec. 30, T. 38 

S., H. 9 E., for irrigation of lands east of Klamath River on both sides of Lost River. 

Most of return water reaches Lost River.

Cooperation. Records furnished by Bureau of Reclamation.

Discharge, In cubic feet per second, water year October 1950 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.

0

0

0

Nov.

0

0

0

Dec.

0

0

0

Jan.

0

0

0

Feb.

0

0

0

Mar.

0

0

0

Apr.

0

5

0

0

0

0

0

0

25

100

*163

205

208

249

344

476

*547 

603

*666

709

727

734

805

860

856

*863

915

652

637

-

12,127

404

24,050

May

619

574

510

468

439

368

314

281

279

»293

*284

224

193

181

173

*190

242

*252

333

418

514

651

698

797

*855

914

934

956 

991

99t5

991

15,926

514

31,590

June

959

935

904

913

934

934

956

967

978

966

990

1,020

1,030

'970

994

974 

978

,000

,020

* ,020

,020

,010

997

1,000

969

984

1.040 

1,010

973

29,455

982

58,420

July

936

*941

964

934

*943

973

988

992

,010

,020

,040

,040

,050

,040

,030

* ,040

.060 

,060

,040

,020

1,000

990

982

986

986

982

*935

908 

863

842

BS3

30,458

983

60,430

Aug.

873

 843

823

821

781

784

797

798

76.9

764

736

712

761

787

*764

706

699 

686

683

705

703

695

658

*628

622

585

589

600 

»606

563

 545

22,086

?12

43,810

Sept.

524

518

574

619

635

632

646

632

603

608

608

579

565

*557

552

552

593 

598

589

598

600

589

589

598

609

584

552

493 

445

388

-

17,229

574

34,170

Calendar year 1950: Max 1,040 Mln o Mean 308 Ac-ft 223,200

Water year 1950-51: Max 1,060 Mln o Mean 349 Ac-ft 252,500

Discharge measurement made on this day.
4/£i KIAMATH RIVER BASIN

Keno Canal at Klamath Falls, Qreg.

Location. Lat 42°13', long. 121°48', in SWi sec. 32, T. 38 S., R. 9 E., on right bank in 

westside plant of The California Oregon Power Co., a quarter of a mile upstream from 

Link River bridge at Klamath Falls.

Records available. October 1923 to September 1951.

Gage. Integrating watt-hour meter read once daily at 12 p.m. Staff gage in canal 200 ft 

above penstock read once daily.

Average discharge. 28 years, 217 cfs.

Extremes. 1923-51; Maximum daily discharge, 339 cfs Feb. 1, 1940; no flow at times.

Remarks. Records good. Discharge determined by combining flow through power plant, as 

computed from record of electrical output, with flow spilled from canal at wasteway 

above penstock. Canal diverts water from Upper Klamath Lake at Link River storage dam 

in SE£ sec. 30. Water is used for developing power and returned to Link River in SW^ 

sec. 32. Flow controlled by gates at head of canal.

Cooperation. Gage readings and record of electrical output furnished by The California 

uregon rower Co.

Discharge, In cubic feet per second, water year October 1950 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.

277

280

280

278

284

28O

28O

280

287

285

286

287

286

283

288

283

281

285

288

286

282

287

292

256

271

235

216

284

284

292

284

8,707

281

17,270

Nov.

285

292

290

294 250"

276

274

279

284

271

274

279

274

273

253

263

271

270

278

282

*278

282

277

272

277

269

272

276

28O

261

-

8,296

277

16,450

Dec.

267

263

271

271

268

265

270

275

274

275

274

276

276

278

277

276

275

276

269

275

277

278

286

285

284

285

285

284

288

297

298

8,598

277

17.O5O

Jan.

286

276

282

294

289

291

294

292

291

283

281

286

282

280

275

284

284

292

290

287

291

291

291

*294

292

292

291

295

287

307

315

8,963

289

17,780

Feb.

305

296

291

297

291

292

296

299

296

294

297

300

299

3 O2

302

305

299

312

307

306

311

328 295"

289

294

293

289

289

_

_

-

8,374

299

16,610

Mar.

289

290

289

283

286

284

294

289

294

297

301

301

300

*295

292

299

296

301

297

3OO

3O9

30l2

293

293

287

292

296

289

294

187

13

8,732

282

17,320

Apr.

122

300

111

6

6

6

8

8

184

3O5

300

304

303

294

298

304

306

30T

305

305

3O6

301

303

231

306

301

299

3O1

291

301

-

7,O19

234

13,920

May

299

30O

299

298

3732

301

301

305

306

*304

304

305

307

3O7

306

3 O2

307

306

3O6

307

3O7

309

30?

3O&

304

305

3O5

3O4

305

3O5

3O4

9,435

3O4

18,710

June

305

303

304

297

297

296

296

301

302

296

301

297

297

297

299

299

299

298

293

3O2

3 O2

300

295

295

294

293

284

255

285

288

-

8,903

297

17,660

July

283

282

286

3O5

297

289

 289

288

289

291

225

793

296

294

289

294

293

298

302

298

297

297

293

295

298

296

298

293

294

294

296

9,032

291

17,910

Aug.

294

289 2f9"3"

294

298

294

297

299

299

299

302

299

299

298

298

299

298

298

299

293

293

293

300

305

235

3OO

294

293

 289

290

29O

9,18§

296

18,220

Sept.

291

287

291

293

286

289

289

285

285

2S9

29O

289

284

284

284

283

284

287

287

299

292

285

291

290

284

282

255

285

283

297

-

8,634

288

17,130

Calendar year 1950: Max 301 Mln o Mean 224 Ac-ft iei,9OO

Water year 195O-51: Max 328 Mln 6 Mean 285 Ac-ft 2O6,OOO

* Discharge measurement made on this day.
KLAMATH RIVER BASIN 473

Upper Klamath Lake near Klamath Palls, Oreg.

42°15' long 121 °48' , in SW£ sec. 19, T. 38 S., R. 9 E., at southeast end 

, mile upstream from outlet and 2 miles northwest of Klamath Falls 

Drainage area.--3,810 sq mi, approximately 

Kecoras available. May 1904 to September 1951 

GageTaTeTOage recorder. Datum of gage is 4,098.22 ft above mean sea level, datum of

a ' "above mean sea level, datum of Bureau of Reclamation. Gage readings 

have been reduced to elevations above Bureau of Reclamation datum, my 28* 1904 to

Feb' ?R' ^nfi' S tarr gage a*'£el^an ^y > at datum 37 ' 78 ft hlehe^ Jan - 7 - 1906, to

Tun^ 17' nq?fl' ? fr ^'i^' ^'J:906 ' to June 16 1918 ' water-stage recorder, and

higher ' gaSe> at Buena Vlsta landing> a? datum 36.13 ft

"^1imUln1 e:LeZ?Uon, d^go year ' 4 - 143 - 39 " my 27; minimum, 4,138.06 ft Oct. 26 

i ^lyeleTation, 4 143.10 ft Apr. 29; minimum daily, 4,139.32 ft Sept. 30 

1904-51: mximum elevation recorded, 4,144.98 ft about Apr. 20, 1904, from highwater marks; minimum recorded, 4,135.55 ft Oct 30 1944 

Remrks. Reservoir is formed by concrete dam at outlet of natural lake, completed in

e S temporary da? bullt In 1919; storage began Apr. 15, 1919. Capacity,

betw? eP elevations 4,135.0 and 4,143.3 ft. Dead storage below elevation

lake level ordinarily maintained between elevation! 4,137 ft 

acr?-{t) and 4,143.3 ft. Water stored may be diverted'through "A" 

oV£ land under Klama th project of Bureau of Reclamation, or released 

Kda^,°5> power plants at Klamath Falls. Area of lake at high stages 

r by d^klnf' Lake elevations, particularly extremes, are very much 

 r a <'f C °n^nts §lve" herein represent those above elevation 4,135 ft. 

nia Oregon'powlr Co water-stage recorder inspections furnished by The CaliforRevisions (water years). W 1061: 1944.

Elevation, In feet, water year October 1950 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

Oct.

40.21

40.12

40.12

40.09

40.23

40.19

40.26

40.36

40.32

40.27

40.31

40.31

40.32

40.38

40.35

40.25

40.19

40.24

40.31

40.34

40.35

40.34

40.34

40.21

40.08

39.38

40.00

40.05

40.11

40.55

40.50

Nov.

40.55

40.71

40.75

40.76

40.74

40.76

40.75

40.85

40.89

40.80

40.75

40.88

40.81

40.75

40.12

40.45

40.66

40.71

40.75

40.78

40.81

40.83

40.81

40.80

40.80

40.56

40.77

40.84

40.72

40.74

-

Dec.

40.82

40.65

40.88

40.98

41.00

40.95

41.00

41.12

41.13

41.09

41.15

41.21

41.24

41.21

41.21

41.27

41.30

41.31

41.16

41.28

41.30

41.27

41.28

41.27

41 . 28

41.27

41.18

41.15

41.21

41.40

41.46

Jan.

41.20

41.11

41.19

41.31

41.27

41.30

41.28

41.25

41.17

41.18

41.26

41.34

41.26

41.12

41.06

41.14

41.26

41.50

41.54

41.54

41.56

41.56

41.59

41.62

41.64

41.66

41.69

41.89

41.72

41.67

41.68

Feb.

41.64

41.63

41.64

41.76

41.81

41.83

41.84

41.86

41.86

41.85

41.92

41.98

42.01

42.01

42.10

42.08

42.07

42.20

42.08

42.10

42.35

42.45

42.20

42.07

42.20

42.14

42.15

42.13

_

-

-

Mar.

42.16

42.17

41.98

41.94

42.08

41.97

42.14

41.98

42.11

42.03

42.01

41.98

41.96

41.94

42.00

42.04

41. '95

41.91

41.89

41.89

42.04

41.96

41.94

41.97

42.05

42.11

42.09

42.12

42.28

42.27

42.29

Apr.

42.30

42.39

42.37

42.48

42.51

42.52

42.55

42.52

42.57

42.64

42.63

42.64

42.65

42.72

42.76

42.68

42.74

42.75

42.89

42.95

42.92

42.90

42.94

42.86

42.95

42.92

42.64

42.88

43.10

42.98

-

May

42.90

42.74

42.70

42.72

42.83

42.91

42.81

42.83

42.84

42.88

42.94

42.89

43.01

42.97

42.97

42.98

43.03

43.02

43.04

43.00

42.94

42.88

42.94

42.90

42.89

42.91

43.05

42.92

43.05

42.97

42.84

June

42.84

42.76

42.77

42.87

42.75

42.76

42.71

42.67

42.64

42.64

42.64

42.61

42.54

42.53

42.51

42.53

42.48

42.43

42.35

42.35

42.26

42.14

42.15

42.08

42.02

41.95

41.92

41.93

41.87

41.84

July

41.76

41.72

41.67

41.58

41.51

41.54

41.55

41.54

41.54

41.48

41.39

41.35

41.31

41.26

41.24

41.22

41.19

41.17

41.18

41.15

41.02

40.98

40.90

40.86

40.81

40.76

40.73

40.72

40.67

40.63

40.61

Aug.

40.55

40.52

40.56

40.51

40.47

40.44

40.44

40.41

40.38

40.37

40.39

40.33

40.28

40.24

40.22

40.19

40.19

40.18

40.14

40.09

40.06

39.97

40., 08

40.03

40.00

40.00

39.98

40.01

39.98

39.93

39.96

Sept.

39.96

39.96

39.98

39.92

39.87

39.84

39.91

39.86

39.82

39.92

39.84

39.81

39.79

39.71

39.72

39.71

39.71

39.67

39.67

39.71

39.64

39.58

39.59

39.56

39.57

39.55

39.49

39.41

39.34

39.32

Note. Add 4,100.00 ft to obtain elevation above mean sea level, Bureau of Reclamation datum. 

Elevations given represent daily mean elevation of lake.

Monthly elevation and contents, water year October 1950 to September 1951

Date

Sept. 30.. ....................

Dec. 31.. ....................

Feb. 28..................'....

July 31... ...................

Sept. 30. .....................

Water year 1950 51. ........

Elevation 

(feet)

4,140.26

4,140.78

4,141.26

4,139.44

"Contents 

(acre-feet)

404,400

266,500

Change in contents 

during month 

(acre-feet)

+39,900

-34,700

-56.900

Note.--To compensate for wind effect, elevation given for end of month is 

mean of elevation for last 3 days of that month and first 3 days of following 

month.

?5R4flS n - 51 -
474 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

 i't 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 mi (including Crater Lake basin), approximately. 

Records available. May 1904 to September 1951.

gage. Water-stage recorder. Datum of gage is 4,083.71 ft above mean sea level, datum of

 T929, or 4,085.50 ft above 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 feet downstream at datum 1.19 ft lower.

Average discharge. 47 years, 1,518 cfs (including Keno Canal).

Extremes.--Maximum combined discharge of Link River and Keno Canal during year, 4,620 cfs

 May d; minimum, 155 cfs Mar. 31.

1904-51: Maximum discharge, 9,400 cfs May 12, 1904 (gage height at bridge, 7.30 ft); 

minimum, 12 cfs Mar. 22, 1945; minimum daily, 17 cfs Dec. 13, 1937.

Remarks. Records good. Regulation since April 1919 by Upper Klamath Lake. Water diverted 

aoove station by main or "A" Canal of Klamath project and Keno Canal (see- pp.471,' 472). 

Other small diversions above lake. Records of discharge include flow of Keno Canal.

Cooperation. Water-stage recorder inspected by employee of The California Oregon Power do"!

Discharge, In cubic feet per second, water year October 195O 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

Ao-ft

Oct.

798 

1,040

876 

912

876

938

1,190

1,060 

911

1,030

814

941

930

1,360

1,220

1,150

1,120

1,160

1,300

1,200

1,410

1,340 

1,110

1,200

1,310

773 1,0"70"

1,420

1,420

1,440

1,420

34,739

1,121

68,900

Nov.

1,420 

1,430

1,440 

1,440

1,440

1,490

1,590

1,620 

1,740

1,830

1,830

1,840

1,830

1,830

1,770

1,780

1,810

1,830

1,900

2,040

*2,140

2,140 

2,140

2,130

2,140

2,110

2,130

2,140

2,120

2,100

55,190

1,840

109,500

Dec.

2,130 

2,120

2,140 

2,330

2,750

2,740

2,750

2,780 

2,800

2,800

2,940

3,100

3,240

3,180

3,140

3,590

3,620

3,630

3,600

5,660

3,660

3,460 

3,190

3,180

3,200

2,980

2,760

2,760

2,570

2,380 

2,380

91,560

2,954

181,600

Jan.

2.540 

2,330

2,200 

2,040

2,040

2,040

2,040

2,040 

1,990

1,840

1,790

1,800

1,800

1,800

1,780

1,800

1,750

1,700

1,700

1,700

1,680

1,710 

1,710

*1,710

1,910

2,220

2,220

2,240

2,260

2,240 

2,240

60,640

1,956

120,500

Feb.

2,240 

2,230

2,220 

2 , 440

2,750

2,750

2,490

2,740 

2,740

2,750

2,740

2,760

2,760

2,760

2,870

2,920

2,970

5,060

5,040

5,040

2,700

5.250 

3,000

5,000

5,060

5,110

5,110

5,110

_

-

78,550

2,805

155,800

Mar.

5,110 

5,110

3,090 

5,070

5,090

5,070

3,090

3,080 

3,370

5,570

5,570

5,550

5,550

*5,540

5,540

5,550

5,500

5,500

5,200

2,870

2,530

2,520 

1,870

1,470

1,470

1,490

1,480

1,470

1,490

1,040 

667

83,517

2,694

165,700

Apr.

1,640 

2,670

2 090 

1,990

2,010

2,070

2,200 2,220" 

2,270

2,540

2,350

2,500

2,270

2,270

2,500

2,010

1,580

1,560

1,760

2,060

2,250

2,710 

2,940

2,870

2,950

2,940

2,920

2,940

3,290

5,460

71,210

2,374

141,200

Hay

3,440 

3,570

5,810 

3,810

3,810

5,790

5,760

3,360 

2,790

2,780

*2,780

2,760

2,790

3,080

3,250

3,240

3,250

3,230

3,250

5,250

2,690

2,060 

1,990

1,850

1,550

1,560

1,560

1,550

1,560

1, 580 

1,580

85,090

2,745

168,800

June

1,600 

1,440

1,440 

1,390

1,440

1,350

1,550

1^550 

1,560

1,570

1,550

1,550

1,550

1,550

1,550

1,550

1,860

2,020

2,010

2,040

2,040

1,990 

1,980

1,980

1,870

1,750

1,600

1,540

1,540

1,510

49 , 280

1,645

97,750

July

1,270 

1,590

1,550 

1,170

1,150

*1,200

*1,070

1,060

T7T30"

1,210

1,260

1,550

1,290

1,400

1,350

1,510

1,280

1,550

1,560

1,530

1,550

1,540 

1,250

1,190

1,200

1,180

1,250

1,200

1,140

1,160 

1,090

58,590

1,245

76,540

Aug.

1,050 

1,040

985 

1,000

944

851

685

605 

691

768

591

762

765

765

723

768

767

767

788

798

758

765 

750

687

645

600

575

357

*595

596 

*584

23,239

750

46,090

Sept.

591 

579

666 

756

752

794

878

977

971

995

1,000

1,000

1,040

1,010

1,030

1,030

1,020

1,050

985

1,050

1,020

1,060 

1,040

1,010

1,050

1,050

771

919

903

711

27,648

922

54,840

Adjusted for diversion in "A" Canal

Mean 

Cfsm 

Ac-ft

1,121 

68,900

1,840 

109,500

2,954 

181,600

1,956 

120,500

2,805 

155,800

2,694 

165,700

2,776 

165,200

5,259 

200,400

2,625 

156,200

2,228 

157,000

1,462 

89,900

1,496 

89,010

Observed

Calendar year 1950 : 

Water year 1950-51 :

Max 5,660 

Max 5,810

Hin 25 

Hin 575

Mean 

Mean

1,187 Ao-ft 

1,916 Ac-ft

859,400 

1,387,000

Adjusted

Calendar year 1950 : 

Water year 1950-51 :

Mean 1,496 

Mean 2,264

Cfsm - 

Cfsm -

Ac-ft

Ac-ft

1,083,000 

1,659,000

Discharge measurement made on this day.
KLAMATH RIVER BASIN 475

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 mixes southwest of Olene.

Records available.--May 1912 to September 1951.

Gage.--Staff gages above and below head gates at Intake of canal at Lost River Dam, read 

once daily.

Average discharge.--35 years (1912-15, 1919-51), 126 cfs.

Extremes.--1912-51; Maximum daily discharge, 1,280 cfs Jan. 30, 1942; 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 Klamath River to aid in reclamation of bed to Tule 

Lake. Discharge includes water occasionally wasted from "C" Canal flume below intake. 

Beginning In July 1951 records include pumpage by Miller Hill Pumping Plant which operates at times; during July and August 1951, pumpage amounted to 1,460 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.)

Cooperation. Records furnished by Bureau of Reclamation.

Discharge, In cubic feet per second, water year October 1950 to September 1951

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.

0

0

0

Nov.

0

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

20

40

50

64

93

145

160

-

572

19.1

1,130

Dec.

187

192

182

178

215

309

344

471

515

413

466

*410

340

346

704

493

461

317

341

287

222

222

180

176

170

169

114

155

168

160

159

9,066

292

17,980

Jan.

159

156

153

161

161

160

160

153

151

149

148

158

158

151

138

161

126

221

224

196

174

162

173

192

287

336

340

337

312

242

210

6,009

194

11,920

Feb.

201

174

172

T§6

317

*645

673

719

748

764

714

707

659

605

546

456

366

334

322

292

282

262

246

251

204

223

223

200

_

.

-

11,491

410

22,790

Mar.

178

181

184

144

197

139

194

159

177

147

181

184

204

271

479

*555

443

401

376

384

391

358

330

250

261

277

274

176

155

146

101

7,897

255

15,660

Apr.

90

39

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

41

263

402

-

835

27.8

1,660

May

?30~ 392

139

120

105

160

233

283

295

*258

264

264

278

274

2$1

256

172

124

138

118

108

94

90

78

68

54

7

0

13

0

0

4,892

158

9,700

June

0

0

0

July

0

75

0

0

0

0

57

81

49

0

0

0

0

0

0

0

0

0

0

0

0

22

53

48

40

36

38

73

134

148

132

911

29.4

1,810

Aug.

123

107

94

80

iSe

168

192

185

185

177

177

181

192

178

178

*182

172

166

152

145

152

155

240

*303

3015

281

240

247

*247

245

292

5,842

188

11,590

Sept.

302

281

258

234

212

228

190

117

134

170

109

64

51

41

39

46

46

47

36

17

16

21

41

103

128

129

171

177

235

348

-

3,991

133

7,920

Calendar year 1950: Max 601 Mln 0 Mean 87.6 Ac -ft 63,440

Water year 1950-51: Max 764 Mln 0 Mean 141 Ac-ft 102,200

* Discharge measurement made on this day.
476 KLAMATH RIVER BASIN

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

Location. Lat 42°09', long. 121°42' in SWi sec. 30, T. 39 S., R. 10 E., on right bank

b miles southwest of Olene.

Records available. April 1931, when diversion began, to September 1951.

Gage. Staff gage above rectangular gate at wasteway read once daily.

Average discharge. 21 years, 36.9 cfs.

Extremes. 1931-51; 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 

 Feacttngs at wasteway with coefficients applied based on discharge measurements. Canal 

was built to divert water from Lost River to Klamathi River and thereby aid in reclamation of bed of Tule Lake. (See record for Lost River diversion canal near Olene.) 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 rediverted for irrigation of 

lands near Tule Lake. Beginning in June 1949, records include pumpage by Miller Hill 

Pumping Plant, which operates at times; during June and July 1951 pumpage amounted to 

4,720 acre-ft.

Cooperation. Records furnished by Bureau of Reclamation,

Discharge, In cubic feet per second, water year October 1950 to September 1951

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

£0

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

O

0

Jan.

0

0

0

Feb.

O

0

0

Mar.

0

O

O

Apr.

O

7J

33

78

 139

31O

425

483

552

589

 592

625

692

711

719

696

611

520

 481

393

315

224

134

56

O

O

0

O

O

0

-

9,378

313

18,600

Calendar year 1950: Max 426 Mln 0 Mean 33.5

May

0

7J

O

O

O

O

0

O

O

O

0

O

O

O

0

O

O

O

O

0

O

O

O

O

0

0

O

35

69

50

101

255

8.23

506

June

126

99

67

67

67

77

93

100

78

108

156

250

268

252

313

355

368

417

462

433

376

360

324

236

168

228

268

251

235

249

6,851

228

13,590

July

220 T9~8"

184

172

113

7O

0

7J

O

47

101

103

155

199

184

181

181

181

205

211

193

48

17

22

30

34

32

O

0

O

0

3,081

99.4

6,110

Ac-ft 27,910

Aug.

O

O

0

Sept.

0

0

0

Water year 1950-51: Max 719 Mln 0 Mean 53.6 Ac-ft 38,810

* Discharge measurement made on this day.
KLAMATH RIVER BASIN 477

Klamath River at Keno, Oreg.

Location. Lat 42"08', long. 121°58', in SE$ sec. 35, T. 39 S., R. 7 E., on left bank 

a miles west of Keno and 5 miles upstream from Spencer Creek.

Drainage area. 3,920 sq ml, approximately (not including Lost River or Lower Klamath Lake 

msins).

Records available. June 1904 to December 1913 and January 1930 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 3,970 ft (from river-profile map). Prior 

£b 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 25 feet downstream at datum 2.00 ft 

higher.

Average discharge. 30 years, 1,510 cfs.

Extremes. Maximum discharge during year, 4,690 cfs Apr. 30-(gage height, 8.62 ft); minimum, 424 cfs July 3 (gage height, 3.24 ft); minimum daily, 740 cfs July 5.

1940-13, 1930-51: Maximum discharge, 6,830 cfs May 1-6, 1938 (gage height, 10.10 ft); 

minimum, 35 cfs Aug. 4, 1934; minimum dally, 60 cfs May 19, 1934.

Remarks. Records excellent. Diversions above station for irrigation. Lost River diversTon 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.

Cooperation. Water-stage recorder inspected by employee of The California Oregon Power Co.

Rating table, water/y^ar 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

4.0 740

5.0 1,290

6.0 1,950

7.0 2,790

8.0 3,900

8.5 4,530

Discharge, In cubic feet per second, water year October 1950 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

M(*)

Oct.

1,160 

1,150

1,160 

1,160

1,160

1,190

1,230

1,230

1,250

1,250

1,130 

1,17O

1,210

1,500

1,470

1,330

1,450 

1,440

1,470

1,430

1,660

1,660

1,390

1,350

1,480

1,540

1,390

1,550

1,690

1,700

1,700

42,650

1,376

84,600

0

11,900

Nov.

1,680 

1,680

1,640 

1,6BO

1,670

1,720

1,840

1,870

1,970

2,090

2,090 

2,090

2,090

2,070

2,030

2,050

2,130 

2,130

2,130

2,230

*2,330

2,350

2,340

2,350

2,350

2,370

2,410

2,380

2,390

2,330

-

62,460

2,082

123,900

165

11,210

Dec.

2,330 

2,410

2,430 

2,560

2,890

3,000

3,140

3,190

3,240

3,190

3,100 

3,090

3,100

3,130

3,440

3,800

3,800 

3,620

3,510

3,540

3,540

3,350

2,970

3,000

3,000

2,740

2,520

2,480

2,290

2,020

2,010

92,430

2,982

183,300 i 26,160

4,240

Jan.

2,010 

1,970

1,920 

1,750

1,690

1,730

1,700

1,730

1,750

1,780

1,770 

1,760

1,750

1,750

1,730

1,770

1,750 

1,810

1,870

1,840

1,760

1,820

1,800

 1,800

2,050

2,410

2,500

2,550

2,520

2,510

2,520

60,070

1,938

119,100,

33,370

12,730

Feb.

2,510 

2,480

2,460 

8,630

3,000

3,340

3,660

3,920

3,900

3,860

3,940 

3,88O

3,830

3,780

3,730

3,720

3,620 

3,650

3,640

3,640

3,460

3,550

3,540

3,530

3,480

3,540

3,540

3,580

_

-

-

97,410

3,479

19&200

4,290

13,480

Mar.

3,530 

3,520

3,530 

3,390

3,510

3,430

3,530

3,470

3,780

4,040

4,060 

4,070

4,100

*4,180

4,280

4,490

4,500 

4,430

4,100

3,620

3,180

3,190

2,460

2,OOO

1,950

1,940

1,860

1,800

1,770

2,260

1,660

101,630

3,278

201,600

1,280

15,100

Apr.

1,050 

2,030

2,090 

1,840

1,850

1,810

1,680

1,600

1,5SO

1,630

1,670 

1,680

1,670

1,660

1,640

1,310

840 

870

1,130

1,550

1,730

2,200

2,580

2,650

2,660

2,700

2,910

2,990

3,500

4,240

59,340

1,978

117,700

2,460

6,330

May

4,230 

4,280

4,400 

4,230

4,230

4,180

4,270

3,960

3,300

3,220

3,230 

*3,250

3,260

3,620

3,820

3,790

3,730 

3,650

3,640

3,620

3,190

2,130

1,880

1,750

1,510

1,520

1,500

1,390

1,160

1,180

1,210

9*4,360

3,044

187,200

1,390

14,260

June

1,220 

1,210

1,210 

1,170

1,160

1,150

1,130

1,180

1,170

1,190

1,200 

1,190

1,160

1,120

1,080

830

BSD 

1,080

1,100

1,100

1,100

1,110

1,100

1,100

1,110

1,120

1,080

984

962

956

-

33,152

1,105

65,760

7,400

657

July

950 

962 830" 

745

*740

830

945

928

934

928

928 

923

923

918

918

928

918 

918

928

923

906

896

890

890

896

890

896

890

90-6

906

918

27,901

900

55,340

9,790

1,060

Aug.

860 8"50"

825 

825

825

845

840

825

800

800

785 

790

795

SOO

795

790

785 

785

785

785

780

780

785

790

790

7S5

785

*765

760 m805

24,760

799

49,110

4/660

2,030

Sept.

840 

840

835 975"

1,050

1,050

1,040

1,030

1,040

1,060

1,110 

1,090

1,100

1,100

1,100

1,090

1,100 

1,100

1,100

1,O90

1,080

1,060

1,080

1,080

1,150

1,100

1,090

1,080

1,080

1,090

-

31,633

1,054

62,740

1,500

4,450

Calendar year 1950 : Max 3,800 Mln 528 Mean 1,292 Cfsm _ In. Ac-ft 935,100

Water year 1950-51 : Max 4,500 Mln 740 Mean 1,994 Cfsm _ In. _ Ac-ft 1,444,000

* Discharge measurement made on this day.

t Diversion at Ady (acre-ft). Total for calendar year 1950, 90,400 acre-ftj for water year 1950-5], 

92,4SO acre-ft.

* Pumpage at Ady {acre-ft). Total for calendar year 1950, 105,800 acre-ft; for .water year 1950-51, 

97,450 aere-ft.
478 KLAMATH RIVER BASIN

Pall Creek at Copco, Calif.

Location. Lat 41°58', long. 122°22', in NE^ sec. 36, T. 48 N., R. 5 W., on right bank 

T75CKJ ft upstream from mouth and 0.8 mile south of Fall Creek power plant and Copco 

post office.

Drainage area. 20 sq mi, approximately. 

Records available.--July 1928 to September 1951.

Page.--Water-stage recorder. Altitude of gage is 2,360 ft (by barometer). Prior to 

Dec. 16, 1937, staff gage 1,000 ft downstream at different datura. Dec. 16, 1937 to 

Aug. 23, 1949 staff gage at present site and datum.

Average dlscharge.--23 years, 35.2 cfs.

Extremes. Maximum discharge during year, 182 cfs Oct. 29 (gage height, 2.42 ft), from 

rating curve extended above 65 cfs on basis of slope-area determination at gage height 

2.42 ft; minimum, 4.8 cfs Aug. 15 (gage height, 0.64 ft).

1928-51: Maximum discharge observed, 350 cfs Jan. 7, 1948 (gage height, 3 22 ft) 

from rating curve extended above 65 cfs on basis of slope-area determination at gage 

height 2.42 ft; minimum, that of Aug. 15, 1951; minimum daily, 24 cfs on many days during June to September 1937.

Remarks. Records good. Two small diversions above station for irrigation of 100 acres 

Power company diverts about 4 cfs to Fall Creek (above station) from Spring Creek (tributary to Jenny Creek). Occasional diurnal fluctuation caused by power plant and fish 

ponds half a mile above station.

Cooperation. Water-stage recorder inspected by employee of The California Oregon Power Co.

Rating table, water year 1950-51 (gage height, in feet, 

and -discharge, in cubic feet per second)

1.2

1.3

1.4

1.5

1.7 

2.0 

2.3

80

117

162

Discharge, in cubic feet per second, water year October 1950 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.

35

36

36

36

37

35

35

36

36

36

35

»36

36

36

36

36

36

36

35

35

35

35

35

35

36

37

41

69

77

73

41

1,229

39.6

2,440

Nov.

40

38

37

37

56

36

36

36

36

36

36

36

36

36

36

49

35

41

40

39

38

37

37

37

37

37

42

38

38

40

-

1,141

38.0

2,260

Dec.

39

39

~55 100

54

65

84

62

55

48

51

52

47

73

53

48

44

43

43

42

41

40

39

39

31

38

38

39

4E

41

40

1,565

50.5

3,100

Jan.

39

43

44

45

41

39

38

35

39

39

43

40

39

38

48

*43

69

67

51

46

48

52

57

63

56

52

48

44

40

38

38

1,426

46.0

2,830

Feb.

SB- 38

46

~55 142

82

81

77

72

73

76

76

71

69

66

64

63

62

59

58

57

55

54

52

51

51

51

51

_

_

-

1,829

65.3

3,630

Mar.

49

49

47

45

49

49

48

51

51

48

48

50

53

54

52

51

50

49

49

51

52

52

52

52

55

55

55

*56

57

56

54

1,592

51.4

3,160

Apr.

54

5?

53

53

53

53

52

51

50

50

48

47

47

46

45

44

44

44

43

42

40

40

40

40

40

39

55

47

43

41

-

1,382

46.1

2,740

May

40

39

39

39

38

38

38

38

37

38

42

40

41

39

38

38

37

37

37

37

37

37

37

37

37

37

37

36

35

36

36

1,173

37.8

2,330

June

36

55

35

35

36

36

*35

35

36

35

35

35

34

34

33

33

34

34

34

34

34

34

34

34

34

35

34

34

34

35

-

1,037

34.6

2,060

July

35

35

37

36

36

36

36

36

36

36

35

35

35

35

34

34

34

34

34

34

35

34

34

34

34

34

34

34

34

34

34

1,078

34.8

2,140

Aug.

34

34

34

34

34

34

34

34

34

34

34

34

35

35

*34

33

55

33

33

33

33

34

33

33

33

33

33

33

33

34

34

1,043.

33.6

2,070

Sept.

34

34

33

55

33

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

34

35

36

5S

1,022

34.1

2,030

Calendar year 1950: Max 100 Mln 32 Mean 41.2 Ac-ft 29,840

Water year 1950-51 : Max 142 Mln 33 Mean 42.5 Ac-ft 30,790

Discharge measurement made on this day.
KLAMATH RIVER BASIN 479

Klamath River below Pall Creek, near Copco, Calif.

Location.--Lat 41°58', long. 122 0 22', in W$ sec. 36, T. 48 N., R. 5 W. , on right bank 

buu 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 post office.

Drainage area. 4,370 sq mi, approximately.

Records available. October 1923 to September 1951. October 1923 to September 19.28, pubnsnea as "juammath River near Copco."

Gage. Water-stage recorder. Altitude of gage is 2,310 ft (from river-profile map). Prior 

fo Oct. 1, 1928, at site half a mile upstream (above Pall Creek) at different datum.

Average discharge. 28 years, 1,519 cfs (including Pall Creek).

Extremes. Maximum discharge during year, 6,530 cfs Mar. 13 (gage height, 6.24 ft); minimum, 264 cfs Aug. 26, Sept. 10 (gage height, 1.65 ft); minimum daily, 310 cfs July 22. 

1923-51: Maximum discharge, 9,660 cfs Apr. 27, May 3, 1938 (gage height, 7.30 ft); 

minimum, about 10 cfs above Pall Creek several times in 1925, 1926; minimum daily, 83 

cfs at present site Aug. 2, 1931.

Remarks. Records good. Diversions and regulation above station.

Cooperation. Water-stage recorder inspected by employee of The California Oregon Power

Rating table, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

1.7 

1.9 

2.1 

2.5 

3.0

285

590

530

860

1,550

3.5 

4.0 

4.5 

5.0 

5.3

1,920

2,610

3,420

4,270

4,780

Discharge, In cubic feet per second, water year October 1950 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.

652

1,480

1,6OO

1,580 

1,890

1,620

1,470

320 

1,710

1,700

1,580

*1,530

1,830

1,650

335

2,110 

2,020

2,100

1,870

1,850

1,830

350

1,980

2,000

2,010

2,030

2,000

2,120

1,210

2,150

2,370

50,977

1,644

101,100

Nov.

2,340

2,430

2,440

1,620 

815

2,290

2,720

2,350 

2,350

2,360

2,320

920

2,550

2,710

2,740

2,520 

2,580

2,210

1,200

2,420

2,860

2,900

2,950

2,970

2,160

1,640

2,570

2,900

2,980

5.000

-

70,815

2,360

L40.5OO

Dec.

2,960

2,760

2.500

2,990 

3,350

3,370

3,770

3,900 

3,780

3,810

3,690

3,810

3,520

4,180

3,710

4.440 

4,076

4,360

3,740

3,830

3,950

3,810

3,420

3,320

3,300

3,300

2,980

3,110

2,980

3,000

2,670

108,380

3,496

215,000

Jan.

1.44O

2,220

2,550

2,380 

2,170

1,490

1,770

2,210 

2,290

2,250

2,320

2,250

1,670

984

2,330

*2,220 

2,310

2,640

2,730

2,170

1,040

2,330

2,520

2,470

2,520

2,800

2,800

2,820

3.050

2,990

2,320

70,234

2,266

139,300

Feb.

2.410

2,650

3,130

3,000 

3,270

3,470

4,300

4.560

4,520

4,340

4,520

4,340

4,320

4,220

4,070

4,050 

4,000

3,930

3,910

3,950

3,900

3,710

3,730

3,760

3,810

3,710

3,760

3,810

_

_

-

106,750

3,812

211,700

Mar.

3,790

3,790

3,780

3,780 

3,760

3,710

3,680

3,690 

3,810

4,150

4,240

4,220

4,240

4,360

4,470

4.630 

4,610

4,560

4,360

4,100

3,610

3,490

3,230

2,770

2,050

2,240

2,420

*2,610

2,720

2,310

2,140

111,320

3,591

220, 800

Apr.

782

2,150

2,460

2,850 

2,270

2,270

2,290

1,120 

2,360

2,350

2,380

2,380

2,390

2,060

864

2,040 

1,590

1,410

1,510

2,150

2,020

1,930

2,420

2,980

3,060

3,110

3,110

3,020

3,780

4.560

-

69,696

2,325

158,200

May

4.54O

4,320

4,560

4,390 

4,370

4,360

4,300

4,270 

3,450

3,620

3,610

3,560

3,590

3,880

4,150

4,070 

3,980

3,930

3,810

3,660

3,640

3,050

2,640

2,150

2,050

2,020

852

2,240

2,290

742

1,550

103,684

3,345

205,700

June

1,420

1,420

1,010

1,520 

1,600

1,580

*1,540

1,560 

1,500

741

1,550

1,520

1,410

1,570

1,560

1,140 

650

1,5(55

1,610

1,510

1,460

1,490

820

850

1.680

1,650

1,580

1,650

1,680

776

-

41,647

1,388

82,610

July

376

1,410

1,350

520 

1,710

1,640

786

482 

1.760

1,420

1,370

1,190

829

1,510

325

1,220 

1,410

1,390

1,360

1,380

1,390

310

1,'2SO

1,250

1,210

1,250

1,240

1,190

438

1,230

1,210

35,436

1,143

70,290

Aug.

1.16O

1,120

1,190

1,510 

476

1,230

1,200

1,220 

1,190

1,210

1,04O

476

1,250

1,100

*1,170

1,090 

1,140

1,110

433

i.TJO

1,020

1,090

1,100

1,120

1,110

600

1,260

1,210

1,150

1,180

1,240

33,535

1,082

66,520

Sept.

1,250

597

648

1,490 

1,560

1,410

1,440

1,120 

482

1,380

1,450

1,460

1,560

1.860

1,110

574 

1,540

1,500

1,490

1,52O

1,540

1,100

419

1,1130

1,530

1,520

1,530

1,760

1,050

512

-

37,932

1,264

75,240

Calendar year 1950: Max 4,440 Mln 295 Mean 1,602 Ac-ft 1,160,000

Water year 1950-51: Max 4,630 Mln 310 Mean 2,302 Ac-ft 1,667,000

Discharge measurement made on this day.
480 KLAMATH RIVER BASIN

Beaver Creek near Lllyglen, Oreg.

Location.--Iat42°13', long. 122°22', In SW£ sec. 33, T. 38 S., R. 4 E., on left bank 

1 mile downstream from Willow Creek, 7 miles southeast of former post office at Lllyglen, and 18 miles east of Ashland.

Drainage area. 30.3 sq ml.

Records available. October 1948 to September 1951 and April 1916 to June 1919 (fragmentary) at site about 1 mile upstream below Willow Creek In reports of Geological Survey. 

October 1930 to May 1931 at site about 1 mile upstream, published as "near Ashland," 

In reports of State engineer.

Gage. Water-stage recorder. Datum of gage Is 4,406.78 ft above mean sea level, datum of 

 1929 (levels by Bureau of Reclamation). Prior to Oct. 1, 1916, staff gage at site 

1 mile upstream at different datum. Oct. 1, 1916, to June 20, 1919, water-stage recorder at site 1 mile upstream at datum 2.0 ft higher than Initial gage.

Extremes.--Maximum discharge during year, 276 cfs Oct. 29 (gage height, 3.29 ft), from 

rating curve extended above 140 cfs by logarithmic plotting; maximum gage height, 4.07 

ft Feb. 4 (ice Jam); no flow July 23 to Sept. 30.

1916-19, 1930-31, 1948-51: Maximum discharge, 525 cfs Mar. 24 or-25, 1919 (gage 

height, 2.53 ft, site and datum then In use); maximum gage height, 4.71 ft Feb. 26, 

1949 (Ice Jam); no flow at times.

Remarks. Records good except those for periods of ice effect, which are poor, 

diversion upstream.

Revisions. W 1151: Drainage area.

Rating tables, water year 195O-51, except periods of Ice effect 

(gage height, In feet, and discharge, In cubic feet per second)

No large

Oct. 1 to Dec. 14 Dec. 15 to Sept. 30

1.3

1.4

1.5

1.6 1.2

1.9

2.0

2.1

2.2

3.9

6.5

10

15

2.5 

2.8 

3.2

113

237

1.2

1.3

1.4

1.5

0.1 

.2

1.0

1.7

1.8

1.9

2.0

7.4

11

2.4

2.6 

3.0

Discharge, In cubic feet per second, water year October 1950 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

ZZ

23

24

25

26

27

28

29

30

31

Total 

Mean

Cfsm

In.

Ac-ft

Oct.

0.1

.1

.1

.2

.4

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

.4

.3

.3

.3

.3

.3

».3

.4

1.1

5.7

78

~5l 141

28

350.9

11.3

0.373

0.43

696

Nov.

31

3O

21

17

14

12

11

12

9.3

7.2

7.2

8.6

9.3

11

8.2

1~5.9

45

52- 69

33

24

23

22

24

24

47

31

38

54

-

718.7 

24. 0

0.792

0.88

1,430

Dec.

45

32

65

171

118

178

181

I4T

147

130

159

144

*123

156

123

106

94

83

75

68

58

53

49

44

42

37

32

43

53

32

b25_

2,813 

9O.7

2.99

3.45

5,580

Jan.

b25

b25

b27

b25

b22

b22

b22

28

28

3O

27

b22

b22

b25

b27

b25

b25

b25

b24

b20

b23

b24

b3l

b35 b35"

b30

b25

b20

bl5

blF

b!5

768 

24.8

0.818

0.94

1,520

Feb.

b20

b25

b31

b70

blSO

*b!4O

b!60

bl475

b!3O

b!35

b!30

b!20

bllO

blOO

b90

b81

b76

b70

b65

b6O

b55

52

b50

b47

45

b43

b42

b42

_

_

-

2,279 

81.4

2.69

2.80

4,520

Calendar year 1950: Max 181 Bin 0

Mar.

41

38

b34

b33

b31

b32

b31

31

30

b26

b24

ss

35

b39

43

55

b45

b45

48

59

64

55

58

73

77

81

83

83

90

7T

75

1,564 

50.5

1.67

1.92

3,100

Apr.

81

88

96

116

131

134

136 T36"

134

*131

123

116

106

98

94

85

73

66

56

49

44

41

37

35

38

31

34

64

53

49

2.475 

82.5

2.72

3.04

4,910

Bay

42

36

36

32

29

32

35

33

27

27

58

47

52

42

34

31

29

28

25

24

22

20

18

17

*14

13

11

9.9

9.2

8.8

8.1

845.0 

27.3

0.9O1

1.04

1,680

June

7.4

676

6.1

5.8

5.6

4.8

4.6

3.8

3.5

3.2

3.0

3.0

3.0

2.7

2.1

2.O

1.9

1.6

1.3

1.2

.9

.9

.8

.7

.7

.7

.678-

.6

.6

-

80.3 

2.68

0.088

0.10

159

July

~

O.5

.5

.5

*.5

.5

.4

.4

.4

.4

.3

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

O

C

o

O

0

0

0

0

0

6.7 

O.22

0.0073

0.01

13

Aug.

(*)

0 

0

O

0

o

Sept.

0 

0

O

0

o

Bean 31.8 Cfsm 1.O5 In. 14.22 Ac-ft 22,990

Water year 1950-51: Max 181 Bin 0 Mean 32.6 Cfsm 1.08 In. 14.61 Ac-ft 23,610

Peak discharge (base, 150 efs). Oct. 29 (8 p.m.) 276 cfs (3.29 ft); Dec. 4 (2 a.m.) 194 cfs 

(3.08 ft}; DecT 7 (3 to 5 a.m.; 197 cfs (3.O9 ft); Dec. 11 (5 to 7 p.m.) 19O cfs (3.O7 ft); Dec. 14 

(6:30 a.m.) 181 cfs (3.04 ft); Feb. 5 to 7 (time and discharge unknown).

* Discharge measurement made on this day.

b Stage-dlschE^-ge relation affected by Ice.
KLAMATH RIVER BASIN 481

Keene Creek at Hyatt Prairie, near Ashland, Oreg.

Location. Lat 42°10', long. 122°29', in SW£ sec. 16, 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 sq mi, approximately.

Records available. November 1948 to September 1951. April 1917 to June 1922 (fragmentary) 

at site nair a mile upstream; records not equivalent owing to reservoir losses.

Sage. Water-stage recorder and concrete control. Altitude of gage is 4,715 ft (by barom-

 e^ter). Prior to July 1, 1922, water-stage recorder half a mile upstream at different 

datum.

Extremes. Maximum discharge during year, 80 cfs Aug. 5-7 (gage height, 3.22 ft); minimum, 

u.i cfs on several days in October.

1917-22, 1948-51: Maximum discharge, 315 cfs (estimated) Apr. 21, 1922 (gage height, 

4.72 ft, site and datum then in use, backwater from ice; no flow at times.

Remarks. Records good above 3 cfs and poor below. Regulation since December 1922 by Hyatt

 PraTrie Reservoir (capacity, 16,180 acre-ft). Practically entire flow diverted about 

1 mile below station by Keene Creek Canal for irrigation near Ashland and Talent in the 

Rogue River basin.

Rating table, water year 1950-51 (gage height, in feet, 

and discharge, In cubic feet per second)

1.68

1.8

1.9

2.0

2.1

0.1 

.3 

.5 

.8

1.4

2.2 

2.4

2.6

2.7

2.8

2.2

5.1

11

16

23

2.9

3.0

3.1

3.2

3.3

32

43

57

74

95

Discharge, In cubic feet per second, water year October 1950 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.

0.1

.1

.1

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.4

.4

.8

75

.6

.4

7.5

0.24

15

Nov.

0.3

.4

.3

.3

.3

.3

.3

.3

.2

7Z

.2

.2

.2

.2

.2

.2

.3

.3

.4

j£

.5

.4

*.4

.4

.4

.4

.5

.4

.5

.5

-

10.1

0.34

20

Dec.

0.4

'.6

.7

.8

1.2

T72~ 1.5

1.2

1.0

1.1

1.0

.9

1.0

.8

.6

.7

.7

.6

.6

.6

.5

.5

.5

.4

.4

.4

.5

.5

.4

.4

22.3

0.72

44

Jan.

0.4

°4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.6

Tff

.6

.5

.5

.4

13.3

0.43

26

Feb.

0.4 -74-

.4

.6

.6

.7

1.3

1,3

*1.5

1.8

1.8

1.7

1.6

1.4

1.4

1.3

1.2

1.2

1.1

1.0

.9

.9

.8

.8

.8

.7

,7

.7

_

_

-

29.0

1.04

58

Mar.

0.6

.6

.6

.6

.6

.6

.6

.5

T5

.5

.5

.5

.6

.7

.7

,7

.7

.8

.8

1.0

1.0

.9

1.0

1.0

1.1

1.1

1.1

1.1

1.1

1.1

1.0

24.2

0.76

48

Apr.

1.0

1.1

1.2

1.2

1.2

1.3

1.4 T74"

l.'i

1.4

1.4

1.3

1.3

1.4

1.4

1.3

1.3

1.3

1.2

 1.2

1.1

1.0

*1.0

1.0

1.0

1.0

1.0

1.0

.9

-li

35.5

1.18

70

May

0.8

.8

.8

.7

.6

.6

.6

.6

.6

.7

.7

.7

.8

.8

.8

.7

.6

.6

.5

.5

.5

.5

*.4

7*

.4

3.0

11

TT

7,9

6.4

6.4

61.4

1.98

122

June

6.4

12

12

12

12

22

38

42

44

44

44

44

44

44

43

43

43

43

43

43

43

43

43

43

43

43

43

43

 43

1,075.4

35.8

2,130

July

43

44

50

53

54

54

54

53

53

53

53

53

54

56

56

54

54

54

54

56

54

54

48

9.8

60

*58

64

6T

64

64

1,637.8

52.8

3,250

Aug.

64

64

66

72

«>

80

78

78

76

74

72

72

72

71

71

72

71

62

49

47

25

6.0

2.1 2-7T

3.5

3.5

18

21

3.9

3.9

*3.9

1,462.7

47.8

2,940

Sept.

54375

3.9

3.9

3.7

3.7

3.6

3.6

3.5

3.4

3.3

3.3

2.6

2.7

1.9

a. 2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

54.1

1.80

107

Calendar year 1950: Max 80 Mln 0.1 Mean 12.8 Ac-ft 9,280

Water year 1950-51: Max 80 Mln 0.1 Mean 12.2 Ac-ft 8,630

* Discharge measurement made on tills day.

a No gage-height record; discharge estimated on basis of measurement of leakage under control on 

Oct. 50, 1951, and record of gate operation at Hyatt Dam.
482 KLAMATH RIVER BASIN

Shasta River near Yreka, Calif.

location (revised).--Lat 41°49'30", long. 122°35'40", in E| sec. 24, T. 46 N., R. 7 W., on 

right banK 0.5 mile upstream from mouth and 7 miles north of Yreka.

Drainage area. 804 sq mi.

Records available.--October 1933 to December 1941, December 1944 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 2,000 ft (from topographic map). Prior 

Eb Nov. 2, 1933, staff gage at same site and datura.

Average discharge. 14 years (1933-41, 1945-51), 153 cfs; median of yearly mean discharges 

127 el's.

Extremes.--Maximum discharge during year, 1,700 cfs Feb. 5 (gage height, 5.98 ft); minimum, 

10 el's July 5.

1933-41, 1944-51: Maximum discharge, 2,440 cfs Feb. 29, 1940 (gage height, 6.72 ft), 

from rating curve extended above 900 cfs by logarithmic plotting and velocity-area studies; minimum, 3.4 cfs Aug. 13, 1939, when about 2 cfs were being diverted around gage.

Remarks. Records good except those for period of no gage-height record, which are fair. 

Flow partly regulated by reservoir above station. Many diversions above station for 

irrigation.

Rating table, water year 195O-51 (gage height, in feet, 

and discharge, in cubic feet per second)

9.0

15

23

3.0 65

5.0

6.0

110

220

430

980

1,720

Discharge, In cubic feet per second, water year October 195O 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.

110

134

137

140

144

156

152

156

152

152

148

148

140

140

137

137

140

140

140

140

140

140

140

144

148

168

224

312

416

575- 708

5,958

192

11,820

Nov.

2§2~ 398

252

232

224

212

208

204

196

188

184

180

176

176

172

236

280

264

224

212

216

204

196

196

196

196

192

192

188

192

-

6,478

216

 12,850

Dec.

192 im

503

5"SO 746

462

520

525

485

439

421

452

421

*615

535

439

394

354

332

312

296

284

276

268

268

252

244

236

244

3O8

324

11,883

383

23,570

Jan.

316

316

312

312

304

284

276

276

268

268

284

312

300

288

328

336

462

808

580

462

617

856

TJQ

652

610

575

540

480

403

340

332

13,227

427

26,240

Feb.

324

336

380

1,240

1.510

1,230

987

898

790

724

691

66S

595

545

500

490

580

555

520

510

505

490

475

466

462

444

430

412

_

-

17,758

634

35,220

Mar.

350" 403

336

292

292

276

264

256

256

*248

244

236

236

244

22ft

228

212

196

200

220

228

224

224

228

220

212

200

180

176

172

14O

7,451

240

14,780

Apr.

134

140

137

137

137

134

131

131

140

137

128

122

102

102

1O2

160

164

*188

172

148

131

102

88

79

75

73

75

128

192

m

3,859

129

7,650

May

156

119

128

140

134

148

176

196

192

152

208

220

154

188

164

156

119

63

53

60

50

40

41

40

30

31

26

55

31

31

38

3,364

108

6,670

June

34

34

45

40

58

60

73

71

65

51

48

33

32

34

40

31

25

17

17

17

18

20

18

14

15

13

16

14

11

TF

979

32.7

1,940

July

15

15

13

18

13

14

15

12

12

14

20

15

17

14

17

17

22

21

15

14

14

14

16

17

14

*14

13

18

23

24

22

502

16.2

996

Aug.

22

18

13

12

17

14

20

18

27

25

17

15

14

14

11

14

14

11

34

38

24

53

60

2T

22

24

28

22

20

20

24

689

22.2

1,370

Sept.

35

35

35

44

34

33

35

35

a35

a35

a36

a38

a40

a42

a45

aSO

a5 5

a60

a65

a75

a85

92

TC5- 105

100

102

102

100

95

90

1,838

61.3

3,650

Calendar year 1950: Max 746 Min 7.7 Mean 151 Ac-ft 109,100

Water year 1950-51 : Max 1,510 Mln 11 Mean 203 Ao-ft 146,800

Peak discharge (base, 300 cfs). Oct. 30 (11 a.m.) 784 cfs (4.69 ft) Dec. 4 (4 a.m.) 820 cfs (4.75

ft); Dec. 14 (7 p.m.) 680 cfs (4.50 ft); Jan. 18 (7 a.m.) 938 cfs (4.94 ft); Jan. 21 (10 p.m.) 1,020

cfs (5.06 ft); Feb. 5 (4' a.m.) 1,700 cfs (5.98 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge interpolated.
KLAMATH RIVER BASIN 483

Scott River near Port Jones, Calif.

Location.- -La t 41 C 38'35", long. 123°00'35", in NWij sec. 28, T. 44 N., R. 10 W. , on right

 bank 150 ft south of road from Port Jones to Scotts Bar, 1.8 miles upstream from Snow 

Creek, and 10.5 miles downstream from Port Jones.

Drainage area. 656 sq mi.

Records available.--December 1941 to September 1951.

Gage.--Water-stage recorder. Datum of gage is 2,625.80 ft above mean sea level (levels by 

TTorps of Engineers) .

Average discharge. 9 years (1942-51), 519 cfs.

Extremes.--Maximum discharge during year, 8,210 cfs Feb. 5 (gage height, 12.02 ft), from

 rating curve extended above 3,300 cfs; minimum, 50 cfs Oct. 1-3, Sept. 20, 21.

1941-51: Maximum discharge, that of Feb. 5, 1951; minimum, 36 cfs Oct. 3, 1947. 

Floodmarks indicate stages of'about 14 ft, dates not known.

Remarks. Records good. Many small diversions for irrigation in Scott Valley during

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second) 

(Shifting-control method used Dec. 3, 4)

summer .

1.5

2.0

2.5

3.0

3.5

Rating tables.

Oct. 1

50

97

163

251

375

to Dec. 4

4.0

5.0

7.0

11.0

and d: 

(Shiff

560

1,050

2,450

6,620

Dec. 4 to Sept. 30

1.4 

1.7 

2.0 

2.5

45

70

103

176

3.0 270

400

575

1,070

6.0

8.0

12.0

1,730

3,690

8,190

Discharge, in cubic feet per second, water year October 1950 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.

51

BT

55

58

62

68

82

82

103

86

81

81

79

76

75

75

75

71

71

72

73

71

71

72

73

82

348

1,930

5,850

6,260

2)830

19,114

617

37,910

Nov.

1,780

1,620

1,560

1,390

1,220

990

852

755

690

624

560

508

473

449

428

1,070

1,110

,300

,320

,220

,560

,270

,060

973

984

973

1,190

1,190

1,000

973

-

31,092

1,036

61,670

Dec.

929

841

2,890

5,560

3,640

3,370

4,610

3,720

3,340

2,960

2,980

2,760

2,250

2,510

*2,370

2,040

1,790

1,610

1,480

1,360

1,260

1,170

1,090

1,030

972

922

862

825

810

785

750

63,486

2,048

125,900

Jan.

709

700

736

718

691

647

619

6q7

'S3T 599

643

651

603

603

678

736

1,080

1,940

1,490

1/250

1,340

1,690

1,770

1,910

1,850

1,730

1,640

1,530

1,400

1,240

1,180

33,611

1,084

66,670

Feb.

1,120

1,110

1,240

4,550

7.020

4,590

4,300

4,360

3,600

3,370

3,690

3,180

2,710

2,360

2,100

1,870

1,730

1,630

1,480

1,410

1,360

1,220

1,210

1,140

1,080

1,030

994

944

_

_

-

66,398

2,371

131,700

Mar.

"SS7 911

825

835

825

790

760

745

760

*709

682

660

651 S6~9~

696

760

760

736

727

741

805

835

820

800

820

830

830

800

820

825

790

24,084

777

47,770

Apr.

760

750" 745

820

944

1,070

1,240

1,350

1,390

1,560

1,580

1,540

1,640

1,790

1,790

1,760

1,790

1,760

*1,570

1,410

1,290

1,200

1,160

1,130

1,060

1,000

994

1,290

1,190

1,000

-

38,573

1,286

76,510

May

911

895

916

966

944

960

966

960

977

1,040

1,160

1,060

966

867

825

867

1,010

1,140

1,180

1,200

1,240

1,220

1,240

1,220

1,200

1,270

1,300

1,170

1,050

911

' 810

32,441

1,046

64,350

June

770

TT8

686

664

639

631

643

623

599

579

571

563

555

559

583

603

575

535

504

476

467

440

415

379

356

323

303

293

277

266

-

15,595

520

30,930

July

257

145

239

225

220

218

214

208

197

182

176

171

163

160

158

162

152

151

142

144

133

134

136

127

124

123

*9S

93

98

91

84

5,022

162

9,960

Aug.

82

81

80

88

35

88

87

82

76

73

73

72

72

71

70

69

68

68

70

72

70

69

69

68

64

67

68

62 m

67

66

2,273

75.3

4,510

Sept.

60

64

66

65

63

58

56

59

61

59

59

59

58

58

54

56

56

53

 sr 51

51

56

57

56

55

55

54

54

54

54

1,712

57.1

3,400

Calendar year 1950: Max 6,260 Mln 47 Mean 766 Ac-ft 554,600

Water year 1950-51: Max 7,020 Mln 51 Mean 913 Ac-ft 661,300

Peak discharge (base, 2,000 efs).--0et. 30 (3 p.m.) 6,860 cfs (11.22 ft); Dec, 4 (6 a.m.) 6,160 cfs 

(10.25 ft}; Dec. 7 (2 p.m.) 4,880 cfs (9.08 ft); Jan. 18 (9:30 a.m.) 2,200 cfs (6.56 ft); Feb. 5 

(8 a.m.) 8,210 cfs (12.02 ft).

* Discharge measurement made on this day.
484 KLAMATH RIVER BASIN

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 

oanK 0.5 mile east of Somesbar post office and 1.5 miles upstream from mouth.

Drainage area.--737 sq mi.

Records available. September 1911 to September 1915, October 1927 to September 1951.

Gage.--Water-stage recorder. Altitude of gage is 500 ft (from topographic map). Prior 

to October 1927, staff gage at different datum.

Average discharge.--25 years (1911-13, 1927-29, 1930-51), 1,572 cfs.

Extremes. Ifeximum discharge during year, 25,500 cfs Feb. 5 (gage height, 14.1 ft); mini- 

 mum, 142 cfs Sept. 19-22, 26-29.

1927-51: Maximum discharge, 29,900 cfs Dec. 28, 1945 (gage height, 15.82 ft), from 

rating curve extended above 15,000 cfs; minimum, 70 cfs Aug. 25, Sept. 4, 5, 1931.

Remarks. Records good except those for periods of no gage-height record, which are fair, 

wo storage or large diversion above station.

Rating tables, water year 1950-51 (gage height, in feet,

and discharge, in cubic feet per second) 

(Shifting-control method used Dec. 21 to Jan. 17)

Oct. 1 to Dec. 2 Dec. 3 to Sept. 30

2.8 

3.0 

3.5 

4.0

160

265

700

1,260

5.0

7.0

9.0

12.0

2,710

6,800

11,600

19,200

2.8 

3.0 

3.3 

3.6

116

186

340

550

4.0

5.0

7.0

11.0

950

2,410

7,050

17,400

Discharge, In cubic feet per second, water year October 1950 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.

179

m

229

524

*732

700

424

359

321

286

265

254 

237

231

225

231

321

543

391

321

293

272

259

254

427

879

2,610

11,900

16,700

11,500

5,180

57,231

1,846

113,500

Hov.

4,350 

4,500 

4,020

3,440

2,860

2,340

2,030

1,850

1,710

1,540

1,420

1,320 

1,300

1,270

1,260

3,400

3,280

6,550 

S,280

4,780

5,060

3,740

3,170

2,980

2,880

2,730

3,690

3,050

2,650

2,860

-

91,290

3,043

181,100

Dec.

2,760 

2,670 

14,300

15,000

9,170

9,860

12,200

9,340

*8,820

7,150

7,860

6,740 

5,460

6,790

6,710

5,810

4,770

4,140 

3,750

3,430

3,100

2,840

2,590

2,410

2,270

2,090

1,950

1,860

1,880

1,860

1,700

171,280

5,525

339,700

Jan.

1,590 

1,730 

*1,950

1,980

2,010

1,870

1,760

1,730

1,680

1,950

2,150

2,160 

2,060

2,150

2,740

2,990

5,710

8,510 

5, 690

4,200

7,370

7,800

6,740

7,130

6,360

5,460

4,910

4,330

3,820

a3,500

a3,200

117,230

3,782

232,500

Feb.

a3,100 

a3,100 

a3,500

312,000

317,000

a!2,000

all, 000

*10,000

8,300

8,040

8,790

7,780 

6,630

5,810

5,160

4,620

4,260

3,860 

3,540

3,310

3,120

2,900

2,720

2,570

2,450

2,300

2,200

2,090

_

-

162,150

5>791

321,600

Mar.

2,010 

1,920 

1,870

al,860

al,870

al,870

*1,880

*1,900

2,150

1,980

1,900

1,840 

1,876

2,090

2,460

2,760

2,550

2,370 

2,390

2,570

2,740

2,610

2,450

2,390

2,460

2,450

2,410

2,340

2,390

2,300

2,150

68,800

2,219

136,500

Apr.

2,030 

1,980 

2,090

2,430

2,840

3,200

3,500

3,700

4,020

4,690

*4,600

4,600 

4,930

5,160

4,910

4,790

4,910

4,380 

3,860

3,390

3,100

2,920

2,920

2,760

2,540

2,430

2,370

3,180

2,540

2,200

-

102,970

3,432

204, 200

May

2,040 

2,060 

2,160

2,200

2,150

2,320

2,320

2,270

*2,480

2,740

2,900

2,480 

2,270

2,150

2,180

2,550

3,160

3,330 

3,140

3,120

3,220

3,220

3,080

2,800

2,630

2,920

2,920

2,450

2,040

1,920

1,710

78,930

2,546

156,600

June

1,590 

1J530 

1,490

1,520

1,520

1,420

1,340

1,250

1,250

1,250

1,270

1,270 

1,310

1,340

1,510

1,460

1,310

1,120 

1,040

1,010

980

920

830

800

750

770

*730

710

690

660

-

34,640

1,155

68,710

July

'555" 631 

550

534

510

494

470

456

442

449

435

407 

400

388

376

370

364

352 

334

324

316

298

292

280

275

270

260

255

250

245

255

11,848

382

23,500

Aug.

'2"2B~ 230 

226

221

221

217

a210

a210

a205

a200

a!95

a!90 

a!90

a!86

186

182

*182

178 

182

190

195

a!90

a!85

a!80

a!75

a!80

a!80

a!70

aTTB"

a!80

a!80

6,017

194

11,950

Sept.

a!70 

a!75 

alSO

aTSO"

a!70

a!65

a!60

a!65

a!70

al65

a!65

al60 

a!60

a!60

al55

a!50

a!50

145 

142

TJZ

142

142

al45

a!45

a!45

a!42

a!42

a!42

a!42

a!45

-

4,661

155

9,240

Calendar year 1950: Max 16,700 Mln 160 Mean 2,425 Ac-ft 1,756,000

Water year 1950-51: Max 17,000 Mln 142 Mean 2,485 Ac-ft 1,799,000

Peak discharge (base, 5,700 efs). Oct. 29 (11:50 p.m.) 21,200 cfs (12.75 ft); Nov. 18 (10:30 a.m 

7,420 cfs (7.27"ft): Dec. 3 (7 p.m.) 20.500 cfs (l2.18 ft); Dec. 7 (7 a.m.) 13,700 cfs (9.54 ft); 

Jan. 18 (12:30 a.m.) 9,960 cfs (8.12 ft); Jan. 21 (8 p.m.) 8',920 cfs (7.72 ft); Feb. 5 (time unknowi 

25,500 cfs (14.1 ft).

* Discharge measurement made on this day.

a No gage-height record; discharge estimated on basis of recorded range in stage and records for 

Scott River near Fort Jones.
KAIAMATH RIVER BASIN 485

Klamath River at Somesbar, Calif.

Location (revlsed).--Lat 41°22'40", long. 123 0 29'30", in NE^ sec. 4, T. 11 N., R. 6 E., on 

left banK auu rt 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 1951.

Gage. Water-stage recorder. Altitude of gage is 450 ft (from topographic map).

Average discharge. 23 years (1927-29, 1930-51), 6,764 cfs.

Extremes . Maximum discharge during year, 74,400 cfs Oct. 29 (gage height, 32.45 ft); min- 

 imum, 880 cfs Sept. 11.

1927-51: Maximum discharge, 97,000 cfs probably Dec. 28, 1945 (gage height, 40.0 ft, 

from floodmarks), from rating curve extended above 49,000 cfs by velocity-area studies; 

minimum, 218 cfs Aug. 26, 1931.

Flood of Feb. 21, 1927, reached a stage of SO. 8 ft.

Remarks . Records good except those for period of no gage-height record, which are fair. 

TTow considerably regulated by reservoirs and power plants above station. Large diversions above station for irrigation.

Revisions. W 811: Drainage area.

Rating tables, water year 1950-51 (gage height, in feet, 

and discharge, in cubic feet per second)

Oct. 30 to Sept. 30

5.1 1,780

6.0 3,050

7.0 4,800

9.0

11.0

15.0

8,900

14,000

24,500

20.0

25.0

31.0

38,000

52,000

70,000

4.9 

6.0 

7.0

1,180

2,360

3,740

8.0

11.0

15.0

5,900

13,700

24,500

20.0 38,000

25.0 52,000

30.0 67,000

Discharge, in cubic feet per second, water year October 1950 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.

2,170 

1,820 

2,4^.0 

3,800 

*4,170

4,280 

3,370 

3,040 

2,320 

3,260

3,040 

2,920 

2,840 

2,990 

2,820

2,100 

3,050 

4,080 

3,680 

3,440

3,260 

3,150 

2,260 

2,550 

3,930

5,010 

11,200 

45,600 

69.100 

49,000 

26,700

283,360 

9,141 

562,000

Nov.

19,800 

17,800 

15,200 

13,300 

11,200

8,890 

9,020 

8,970 

7,880 

7,230

6,860 

6,390 

4.920 

5,950 

6,570

13,600 

16,400 

25.700 

20,000 

16,000

16,200 

14,000 

12,500 

11,900 

11,700

10,700 

11,900 

11,700 

10,900 

11,600

364,780 

12,160 

723,500

Dec.

11,700 

11,300 

48,400 

57.300 

37,500

35,100 

42,500 

*36,900 

34,700 

30,700

30,300 

27,700 

24,300 

28,000 

28 , 700

24,800 

22,600 

19,400 

18,200 

16,100

15,100 

14,400 

11,200 

12,900 

12,200

11,700 

11,300 

10,800 

11,900 

10,700 

10^600

719,000 

23,190 

tl,426

Jan.

10,200 

9,490 

9,900 

*11,200 

10,800

a9,800 

a9,300 

a9,800 

a9,900 

a9,900

alO.OOO 

a9 , 600 

a9,100 

a8,500 

11,500

13,900 

23,600 

55.000 

25,600 

*19,100

27,300 

27,800 

26,300 

27,100 

25,100

22,600 

20 , 900 

18,900 

16,800 

15,300 

14,200

508,490 

16,400 

Tl,009

Feb.

12,800 

12,700 

13,900 

53,400 

61.900

45,400 

41,900 

*41,400 

35,400 

33,800

37 , 200 

34,400 

30,000 

26,400 

23,700

21,400 

20,000 

18,700 

17,200 

16,100

15,600 

14,900 

14,200 

13,900 

13,500

13,100 

12,700 

12.400

708,000 

25,290 

tl,404

Mar.

12,100 

11,800 

11,500 

11,800 

12,000

11,700 

* 11, 800 

11,600 

12,300 

11,900

11,800 

11,500 

11,600 

12,100 

13,000

14.300 

13,900 

13,200 

12,900 

13,000

13,100

12,600 

12,100 

11,800 

11,700

11,000 

10,900 

11,000 

11,100 

11,200 

10^300

372,600 

12,020 

739,000

Apr.

9,880 

8.650 

9,490 

10,800 

12,300

12,500 

13,100 

13,500 

12,700 

14,900

14,800 

* 15, 000 

15,200 

15.700 

15,200

14,100 

14,700 

13,700 

13,200 

11,800

11,400 

11,000 

10,600 

10,500 

10,800

10,600 

10,400 

12,500 

12,000 

11,300

372,300 

12,410 

738,400

May

11,500 

11,500 

11,300 

11,800 

11,5OO

11,800 

11,800 

11,500 

*11,600 

11,200

11,600 

11,400 

10,900 

10,700 

10,600

11,200 

11,900 

12.100 

11,800 

11,500

11,400 

11,400 

11,000 

10,300 

9,330

9,230 

9,280 

7,930 

7,900 

7,720 

6,130

330,820 

10,670 

656,200

June

5.980 

5,880 

5,520 

5,050 

5,660

5,320 

5,350 

5,200 

5,050 

5,000

4,380 

4,700 

4,940 

4,830 

4,940

5,050 

4,740 

3,850 

3,870 

4,180

4,060 

3,880 

3,700 

3,370 

2,910

3,160 

*3,460 

3,370 

3,300 

3,230

133,930 

4,464 

265,600

July

3.090 

2,460 

2,220 

2,820 

2,660

2,370 

3,000 

2,770 

2,250

2,410

2,830 

2,580 

2,580 

2,170 

2,170

2,340 

1,840 

2,200 

2,440 

2,350

2,380 

2,360 

2,240 

1,610 

2,200

2,070 

2,110 

3,200 

2,120 

1,910 

1,500

72,250 

2,331 

143,300

Aug.

2,020 

2,070 

1,980 

1,900 

2,080

2,060 

1,440 

2,020 

2,030 

1,990

1,990 

1,920 

,1,700 

1,430 

2,100

1,760 

*1,770 

1,770 

1,810 

1,540

1,480 

1,730 

1,860 

1,770 

1,800

1,800 

1.410 

1,610 

1,880 

1,830 

1,850

56,400 

1,819 

111,900

Sept.

1,890 

1,940 

1,510 

1.250 

1,780

2,100 

2,050 

2,020 

1,900 

1,340

1,540 

1,960 

1,960 

2,040 

2,130

1,960 

1,400 

1,690 

2,060 

2,030

2,120 

2,060 

1,770 

1,480 

1,620

2,100 

2,070 

2,140 

2,280 

2,060

56,230 

1,874 

111,500

Calendar year 1950: Max 69,100 Min 1,010 Mean 9,871 Ac-ft 7,146,000 

Water year 1950-51: Max 69,100 Min 1,230 Mean 10,900 Ac-ft 7,890,000

Peak discharge (base, 18,000 cfs).-

28,800 cfs (16.59 ft); Dec. 3 (10:30

-Oct. 29 (8 a.m.) 74,400 cfs (32.45 ft); Nov. 18 (11 a.m.) 

p.m.) 69,000 cfs (30.65 ft); Dec. 7 (7:30 a.m.) 45,100 cfs

, _ ,. Jan. 18 (7 a.m.) 36,200 cfs (19.35 ft); Jan. 21 (4:30 p.m.) 32,700 cfs (18.05 ft); Feb. 

4 (8 p.m.) 72,400 cfs (31.8 ft).

* Discharge measurement made on this day,

t Expressed in thousands.

a No gage-height record; discharge estimated on basis of records for station beJ.ow Pall Creek, near 

Copco.
486 KLAMATH RIVER BASIN

Trinity River at Lewiston, Calif.

Location. Lat 40°12', long. 122"48', in NEir sec. 19, T. 33 N. , R. 8 W., on downstream side 

of left pier of highway bridge at Lewiston, 0.8 mile downstream from Deadwood Creek.

Drainage area.--724 sq mi.

Records available.--August 1911 to September 1951.

Gage. Water-stage recorder. Datum of gage is 1,794.10 ft above mean sea level, datum of 

T929. Prior to Sept. 20, 1930, staff gage at upstream side of bridge, same datum.

Average discharge. 40 years, 1,540 cfs.

Extremes.--Maximum discharge during year, 39,300 cfs Oct. 30 (gage height, 21.00 ft); mini- 

 mum, 120 cfs Sept. 25.

1911-51: Maximum discharge, 40,300 cfs Feb. 28, 1940 (gage height, 20.8 ft), from

rating curve extended above 13,000 cfs; maximum gage-height, that of Oct. 30, 1950;

minimum, 23 cfs July 30, 1924.

Remarks. Records excellent. Diversions above station for irrigation, power, and placer 

mining.

Revisions (water years). W 331: 1911 (calendar year) . W1181: 1949.

4.4 

4.6 

4.9 

5.6 

6.0

Rating tables, water year 195O-51 Cga-ge height, In feet, 

and discharge, In cubic feet per second)

Oct. 1 to Nov. 3O Dec. 1 to Sept. 3O

130

158

209

350

445

6.5 

7.0 

8.0 

9.0 

10.0

910

1,760

2,920

4,380

12.0

14.0

17.0

8,400

13,400

23,100

4.3 

4.8 

5.6 

6.0

117

191

350

445

6.5 

7.0 

8.0 

9.0

630

910

1,800

2,980

10.0

11.0

13.0

4,500

6,400

11,200

Discharge, In cubic feet per second, water year October 1950 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.

140 

IJT 

147

383

489

487

354

295

263

245

230

217

209

202

195

198

308

469

359

295

267

251

239

235

384

1,340

2,950

10,200

22.700

17,700

5,490

67,382

2,174

133,700

Nov.

*5.560 

3,240 

3,540

3,320

2,790

2,330

1,990

1,850

1,710

1,490

1,320

1,190

1,110

1,050

1.020

2,730

2,340

2,520

2,420

2,400

3,020

2,470

2,150

2,070

2,110

2,070

2,840

2,760

2,250

2,170

-

67,830

2,261

134, 500

Dec.

*2,120 

1,910 

2,600

3,800

3,120

4,330

6,510

6,780

11,600

9,240

9,470

8,310

6,180

8,34O

8,260

6,530

5,060

4,180

3,730

3,430

3,020

2.73C

2,520

2,370

2,240

2,090

1,940

1,820

1,840

1,740

1, 630

139,440

4,498

276,600

Jan.

1,530 

*1,480 

1,470

1,430

1,380

1,290

1,240

1,230

1,210

1,380

1,520

1,540

1,420

1,400

1,590

1,720

1,990

3,500

2,626

2,140

2,020

1,910

1,870

2,050

2,090

2,120

2,170

2,140

2,030

1,840

1,760

54,880

1,770

108,900

Feb.

*1,640 

1,610 

1,650

6,240

8,110

5,540

5,500

6,340

5,460

6,130

10,300

8,470

8,640

5,150

4,440

3,970

3,620

3,260

2,930

2,750

2,600

2,430

2,260

2,130

2,010

1,920

1,820

1,730

_

_

-

118,650

4,238

235,300

Mar.

*1,660 

1,590 

1,500

1,540

1,480

1,460

1,430

1,440

1,660

1,510

1,440

1,420

1,480

1,730

2,080

2,430

2,360

2,250

2,340

2,560

3,O6O

5,180

2,930

2,840

3,010

2^,980

2,950

2,880

2,880

2,770

*2,550

67,390

2,174

153,700

Apr.

2,400 

2,540 

2, £40

2,980

5,610

4,040

4,250

4,450

4,680

5,440

5,220

4,970

5,260

5.540

5,240

5,090

5,800

4,770

4,450

5,990

5,720

5,490

5,400

5,260

2,800

2,660

2,620

3,370

2,800

2,410

-

117,570

3,919

233,200

May

*2,220 

2,260 

3,760

5,480

5,Ht>0

4,640

4,250

3,810

4,050

4,550

4,730

3,830

3,260

2,930

2,930

5,370

4,120

4,480

4,250

4,150

4,150

4,040

5,960

5,670

5,560

5,910

5,890

5,500

2,700

2,440

2,160

116,070

3,744

230,200

June

*1,990 

1,880 

1,820

,810

.840

,690

,580

,470

,410

,460

,490

,490

,550

,530

,650

,660

,510

,510

,180

,110

,090

,140

973

904

862

820

796

760

756

710

-

40,221

1,541

79,780

July

*6"55" 680 

600

605

560

550

499

481

457

448

452

418

412

400

588

577

565

552

341

328

315

309

297

289

279

269

255

247

259

252

228

12,267

596

24,550

Aug.

*220 

211 

209

207

200

196

195

189

184

177

168

171

171

168

168

165

160

158

158

157

158

164

260

271

2*5

215

198

184

174

174

*177

5,846

189

11,600

Sept.

172

m

168

161

154

154

151

147

145

145

141

138

134

130

127

125

125

126

127

126

125

124

124

125

122

122

122

122

125

140

-

4,118'

157

8,170

Calendar year 1950: Max 22,7OO Mln 100 Mean 1,876 Ao-ft 1,358,000

Water year 1950-51 : Max 22,70O Mln 122 Mean 2,224 Ac-ft 1,610,000

Peak discharge (base, 5,400 efs).--Oct. 50 (12:50 a.m.) 59.300 cfs (21.00 ft); Dec. 9 (l p.m.) 

14,200 cfs (147ll ft); Feb. 4 t10 p.m.) 10,80O cfs (12.84 ft); Feb. 11 (9 to 10 a.m.) 10,600 cfs 

(12.76 ft); Apr. 17 (6 a.m.) 6,490 cfs (11.04 ft); May 5 (3 to 5 a.m.) 5,700 cfs (10.65 ft).

* Discharge measurement made on this day.
KLAMATH RIVER BASIN 487

Trinity River near Douglas City, Calif.

Location. Lat 40°40', long. 122 0 59', in Sw£ sec. 34, T. 33 N., R. 10 W., on right bank 

BUD rt downstream from Browns Creek and 2.6 miles northwest of Douglas City.

Drainage area. 1,017 sq mi.

Records available. April 1944 to September 1951 (discontinued).

Gage.--Water-stage recorder. Datum of gage is 1,520.89 ft above mean sea level (levels by 

Bureau of Reclamation).

Average discharge.--? years, 1,814 cfs.-

Extremes.--Maximum discharge during year, 41,200 cfs Oct. 30 (gage height, 28.57 ft); min- 

 imum, 153 cfs Sept. 17, 18.

1944-51: Maximum discharge, 41,800 cfs Jan. 7, 1948 (gage height, 30.00 ft), from 

rating curve extended above 9,100 cfs by logarithmic plotting; minimum, 93 cfs Sept. 6,

Remarks. Records good. Diversions above station for irrigation, power, and placer mining. 

Revisions (water years).--W 1181: 1949.

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, In cubic feet per second)

Oct. 28 to Sept. 30

0.8 152

1.4 252

2.0 406

3.0 750

4.0 1,160

5.0 1,730

8.0 4,150

0.8 144

1.4 276

2.0 452

4.0 1,270

6.0 2,450

10.0 6,100

15.0 12,800

22.0 26,000

Discharge, in cubic feet per second, water year October 1950 to September 1951

Day

1 

2

3

4

5

6

7

8 

9

10

11

12 

13

14

15

16

17

18

19

2

21

22

23

24

25

26

27

28

29

30

31

Total

Mean

Ac- ft

Oct.

159 ISO"

180

397

531

514

362

305 

272

254

242

230 

220

212

205

212

279

494

373

312

281

263

252

248

352

1,150

3,310

9,940

25,100

24, SCO

7,730

78,839

2,543

156,400

Nov.

4,730 

3,930

4,270

4,030

3,550

2,860

2,440

2,250 

2,100

1,880

1,710

1,580 

1,520

1,460

1.400

3,490

3,110

3,110

3,030

2,940

3,680

3,070

2,670

2,520

2,540

2,490

3,120

3,280

2,710

2,570

-

84,040

2,801

166,700

Dec.

*2,520 

2,320

4,000

5,470

4,320

5,730

8,370

8,230 

13,100

10,900

10,900

9,740 

7,470

11,100

10,400

8,350

6,350

5,170

4,560

4,200

3,730

3,350

3,080

2,890

2,750

2,590

2,400

2,270

2,250

2,180

2,050

172,740

5,572

342,600

Jan.

1,940 

1,890

1,910

1,890

1,840

1,720

1,660

1,640 

1,650

1,960

2,160

2,180 

1,980

1,930

2,180

2,390

2,770

4; 710

5,870

3,090

2,950

2,910

3,010

3,300

3,370

3,330

3,330

3,190

3,070

2,720

2,510

79,050

2,550

156,800

Feb.

2,350 

2,300

2,410

8,460

15,500

8,860

8,160

9,150 

7,880

7,850

12,800

11,600 

8,860

7,070

5,940

5,220

4,740

4,550

5,870

5,580

5,580

5,140

2,950

2,770

2,620

2,500

2,590

 2,280 _

_

-

160, 740

5,741

518,800

Mar.

*2,190 

2,110

2,020

2,060

2,020

1,970

1,960

1,950 

2,200

2,040

1,950

1,900 

1,940

2,160

2,470

2,870

2,850

2,710

2,730

2,940

3,400

5,600

3,340

5,220

3,340

3,540

5,500

5,220

5,200

5,120

2,900

81,000

2,615

160,700

Apr.

2,710 

2,650

2,760

5,180

5,790

4,240

4,460

4,690 

4,850

5,680

5,560

5,250 

5,460

5,750

5,610

5,580

6,050

5,130

4,750

4,280

5,920

5,710

5,570

5,440

5,020

2,840

2,760

5,660

5,150

2,650

-

124,850

4,162

247,600

May

*2,440 

2,450

5,870

6,460

6,210

5,410

4,880

4,590 

4,560

5,050

5,150

4,200 

3,580

3,250

3,250

5,790

4,550

4,740

4,500

4,460

4,420

4,260

4,190

5,790

3,920

4,230

5,950

3,190

2,770

2,490

2,250

126,590

4,084

251,100

June

2,110 

2,010

1,980

1,990

1,940

1,800

1,750

1,660 

1,650

1,660

1,660

1,700 

1,690

1,770

1,840

1,740

1,600

1,440

1,540

1,290

1,550

1,270

1,160

1,090

1,040

986

955

919

890

862

45,082

1,505

89,420

July

822 7B2"

762

750

*670

650

592

565 

547

525

501

491

474

455

442

433

408

401

380

568

559

344

550

322

308

297

284

268

264

261

258

14,275

460

28,510

Aug.

249 

24T

259

257

252

229

227

225 

220

218

216

216 

218

218

218

216

218

218

216

215

215

216

216

216

216

213

211

211

209

*206 '2753"

6,823

220

15,550

Sept.

'2750" 209 

197

191

182

178

178

174 

170

170

168

166 

162

158

157

155

155

153 T5"5"

157

157

155

155

155

157

157

157

155

157

176

5,016

167

9,950

Calendar year 1950: Max 25,100 Mln 115 Mean 2,186 Ac-ft 1,582,000

Water year 1950-51: Max 25,100 Mln 153 Mean 2,682 Ac-ft 1,942,000

Peak discharge (base, 6,400 ofs). Oct. 30 (3 a.m.) 41,200 cfs (28.57 ft); Dec. 9 (3 p.m.) 16,100 

cfs 117-00 ft); Dec. 14 (10:30 a.m.) 12,200 cfs (14.60 ft); Feb. 5 (2:50 a.m.) 16,800 cfs (17.58 ft); 

Feb. 11 (2:50 p.m.) 13,700 cfs (15.56 ft); Apr. 17 (9:30 a.m.) 6,770 cfs (10.56 ft); May 4 (2 p.m.) 

6,840 cfs (10.62 ft).

* Discharge measurement made on this day.
KLAMATH RIVER BASIN

Trinity River near Hoopa, Calif.

Location. lat 41°02', long. 123°39', in SE£ sec. 31, T. 8 N., R. 5 E., in Hoopa Indian

 Reservation, on left bank 0.5 mile downstream from Campbell Creek and 2 miles southeast 

of Hoopa.

Drainage area. 2,840 sq mi, approximately.

Records available.--October 1911 to January 1914, November 1916 to August 1918, October

 1931 to September 1951. 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.--22 years (1911-13, 1931-51), 5,244 cfs.

Extremes. --Maximum discharge during year, 72,500 cfs Feb. 5 (gage height, 23.63 ft); minimum, 413 cfs Oct. 2.

1911-14, 1916-18, 1931-51: Maximum discharge, 124,000 cfs Feb. 28, 1940 (gage 

height, 31.2 ft), from rating curve extended above 53,000 cfs; minimum, 162 cfs Oct. 4, 

1931.

Remarks.--Records good. Small diversions above station for mining and irrigation. 

Revisions. W 861: Drainage area.

Rating tables, water yeai- 195O-51 (gage height, in feet, and discharge, 

in cubic feet per second)

Oct. 1 to Feb. 5 Feb. 6 to Sept. 3O

3.1 395 8.O 4,800 2.9 42O 8.O 4,810

4.0 705 11.0 12,300 4.0 735 13. 0 19,000

5.0 1,200 15. 0 26,3OO 5.0 1,2OO 18.0 40,OOO

6.0 2,OOO 20. 0 5O,2OO 6.O 2,OOO 19.0 .45,000'

7.0 3,150 22.0 62,200 7.O 3, ISO

Discharge, In cubic feet per second, water year October 195O 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.

416 

413

453

639

1,060

*1,590

1,270

1,020

844

741

685

649

618

594

572

562

614

709

1,OOO

915

790

717

677

661

750

1,420

6,080

24,100

41,500

52,5OO

23,200

167,561

5,405

332,400

Nov.

13 , 6OO 

10,100

9,080

8,180

7,120

5,990

5,040

4,440

4,11O

3,740

3,400

3,140

2,94O

2,830

2,82O

8,780

11,400

11,500

11,200

9,700

11,000

9,6OO

8,2ZO

7,200

6,640

6,210

6,62O

7,350

6,330

6,10O

214,380

7,146

425,2OOi

Dec.

6,35O 

6,53O

25,6OO

39.20O

25,700

22,8OO

3O,OOO

 27,600

28,100

28,10O

24,400

24,3OO

19,400

32,500

34,20O

27,600

21,400

17,300

14,3OO

12,700

11,200

9.95O

9,080

8,45O

7,920

7,4OO

6,860

6,470

6,210

6,130

5,880

553,630

17,860

tl,098

Jan.

5,470 

5,40O

6,300

6,570

*6,66O

6,21O

5,82O

5,620

5,660

7,02O

8,420

8,92O

8,120

7,9OO

9,22O

10,8OO

16,50O

29,OOO

22 , 9OO

16,800

24,700

54,200

28,200

25,4"00

22,8OO

2O,2OO

18,2OO

16,3OO

14,600

12.9OO

11,6OO

428,410

13,820

849,700

Feb.

10,5OO 

1O,30O

11,200

42,200

60,800

41,800

 35,400

33.6OO

28.9OO

26,500

33,400

33,900

27,8OO

23,000

19.7OO

17,300

15,60O

14,400

13 , OOO

12,200

11,5OO

10,700

10,000

9,34O

8,8OO

8,29O

7,870

 

7,46O~ 

__

-

585,460

20,910

tl.161

Mar.

7,010 

6,670

6,410

6,600

6,920

6,65O

6,72O

6,670

 8,14O

7,900

7,250

6,920

6,92O

7,6OO

8,65O

9,700

9,550

8,890

8,380

8,650

9,O7O

9,370

8,950

8,47O

8,350

8,38O

8,2OO

7,990

7,810

7,69O

7,220

243,700

7,861

483,400

Apr.

6,740 

6,450

6,36O

6,790

7.6OO

8,560.

8,920

9,19O

9,46O

10,4OO

1O,700

10, 100

* 10,2OO

10,5OO

10,40O

9,790

10,OOO

9,820

8,74O

8,080

7,380

6,900

6,620

6,43O

6,070

5,56O

5,390

7,090

7,550

6,120

243,930

8,131

483,800

May

5,52O 

5,35O

5,960

9,64O

11,200'

10,600

9,79O

8,950

8,44O

*8,770

9,190

8,710

7,520

6,82O

6,410

6,6OO

7,360

8,110

8,O80

7,630

7,630

7,440

7,360

6,92O

6,450

6,770

7,O6O

6,500

5,560

4,990

4,52O

231,850

7,479

459,900

June

4,16O 

3,970

3,830

3,730

3,730

3,670

3,470

3,32O

3,180

3,110

3,150

3,150

3,250

3,280

3,42O

3,530

3,38O

3,110

2,830

2,630

2,590

2,480

2,430

2,22O

2,110

2,050

*1,99O

1,900

1,860

1.800

89,330

2,978

177,200

July

1,740 

1,640

1,54O

1,480

1,440

1,380

1,330

1,280

1,240

1,210

1,180

1,13O

1,100

1,08O

1,04O

1,020

99O

965

93O

902

878

858

838

814

798

778

756

735

718

7OO

686

33,176

1,070

65,80O

Aug.

672 658"

648

630

627

618

609

60O

588

582

573

564

555

552

549

54O

534

528

519

515

516

525

»546

549

621

621

591

558

546

537

534

17,803

574

35,31O

Sept.

534

B3T

528

516

510

5OO

490

488

485

478

470

468

46O

458

454

450

448

446 446~

442

438

438

436 136"

436

436

438

438

450

472

14 , 020

467

27,810

Calendar year 195O: Max 52,300 Mln 338 Mean 6,766 Ac-ft 4,898,OOO

Water year 1950-51: Max 6O,8OO Mln 413 Mean 7,735 Ac-ft 5,60O,O3O

Peak discharge (base, 22,'OCO cfs).

44.800 cfs (16735 ft): Dec. 9 (12 p.r

 Oct. 30 (9:30- a.m.) 62.7OO cfs (22.08 ft); Dec. 4 (3 a.m.) 

n. ) 32,100 cfs (16.28 ft); Dec. 14 (4:3Op.m.) 39,000 cfs (17.79

ft); Jan. 18 (lO a.m.) 31,oOO cfs (16.04 ft); Jan. 21 (11:3O p.m.) 37,000 cfs (17.38 ft); Feb. 5

(3 a.m.) ^2,500 cfs (23 %63 ft); Feb. 11 (12 p.m.) 36.2OO cfs (17.19 ft).

* Discharge measurement made on this day.

t Expressed In thousands.
KLAMATH RIVER BASIN 489 

Smaller reservoirs in Klamath River basin, Oreg.

Fourmlle Lake Reservoir .--La t 42°27', long. 122°14', in NVf£ sec. 9, T. 36 S., R. 5 E., at 

aam at outlet or tfourmile Lake, 8 miles west of Recreation. Drainage area, 15 sq mi 

approximately. Records available, June 1923 to September 1930, June 1932 to September 

1951. Staff gage with datum at mean sea level, irrigation company datum. Gage read one 

to five times a week May to August, occasionally at other times. Maximum contents observed during year, 16,320 acre-ft May 28 (elevation, 6,003.2 ft); minimum, 2,830 acreiJLo eptl -1 (elevation, 5,985.1 ft). Maximum contents observed during periods 1923-30 

1932-51, that of May 28, 1951; 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 

ft (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 6,005ft). Figures given 

herein represent usable contents. During irrigation season all water diverted to Fish 

Lake Reservoir in the Rogue River basin for irrigation of lands near Medford.

Hyatt Prairie Reservoir.--Lat 42°10', long. 122°28', in sec. 16, T. 39 S., R 3 E., at 

aam or Talent Irrigation District on Keene Creek, 3 miles north of Ashland-Klamath 

Falls highway and 20 miles east of Ashland. Drainage area, about 10 sq mi. Records 

available, December 1922 to September 1951. Staff gage with datum at mean sea level 

datum of Talent Irrigation District. Gage read two to four times a week from May to 

September, occasionally at other times. Maximum contents observed during year, 10,380 

acre-ft May 25, 28 (elevation, 5,008.8 ft); minimum, 338 acre-ft Sept. 17, 21, 24, 28 

(elevation, 4,987.1 ft). Maximum contents observed during period 1922-51, 17,410 acreft May 29, 1938 (elevation, 5,017.37 ft); no usable contents at times.

Reservoir is formed -by1 rock-faced earth dam, completed by Talent Irrigation District 

i ?23 ',, 8 *?1*^6 began ln December 1922. Capacity, 16.180 acre-ft between elevations 

4,981.7 ft (sill of gate, approximate) and 5,016.0 ft (spillway crest). 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 six other small reservoirs in Williamson River basin and

eignt in Lost River basin, having a total capacity of 12,300 acre-ft. (See also Gerber 

Reservoir and Clear Lake Reservoir, in "Records obtained by agencies other than the 

Geological Survey," p. 11).

Elevation and contents, water year October 1950 to September 1951

Date

Dec. 31. ...............

Calendar year 1950...

Sept . 30 ................

Water year 1950-51...

Fourmlle Lake Reservoir

Elevation 

(feet)t

:

-

6,003.1 

5,999.3 

5,993.0

-

Contents 

(acre-feet)

5,520 

6,400 

8,300 

9,900

-

11,100 

11,900 

12,540 

13,300 

16,220 

12,710 

7,830 

3,530 

3,000

-

Change In 

contents 

during month 

(aere-feet)

+680 

+1,900 

+1,600

+3,200

+1,200 

+800 

+640 

+760 

+2,920 

-3,510 

-4,880 

-4,300 

-530

-2,520

Hyatt Prairie Reservoir

Elevation 

(feet)t

1

-

5,002.0 

5,007.7

4,988.8

-

Contents 

(aore-feet)

350 

850

2,000 

3,730

-

4,440 

5,850 

6,920 

9,580 

10,320 

7,910 

4,270 

604 

360

-

Change In 

contents 

during month 

(aore-feet)

+500 

+1,150 

+1,730

+730

+710 

+1,410 

+1,070 

+2,660 

+740 

-2,410 

-3,640 

-3,666 

-244

+10

t Hour of reading not known.

Note. Contents Interpolated for days on which gage was not read.
490 SMITH RIVER BASIN

Smith River near Crescent City, Calif.

Location Lat 41°47'20", long. 124°03'20", in SW£ sec. 10, T. 16 N., R. 1 E., on left 

DanK 0.5 mile downstream from South Pork and 9 miles east of Crescent City.

Drainage area. 613 sq ml.

Records available . October 1931 to September 1951.

Gage. Water-stage recorder. Altitude of gage is 150 ft (from topographic map).

Average discharge. 19 years (1931-37, 1938-51), 3,484 cfs.

Extremes. Maximum discharge during year, 152,000 cfs Oct. 29 (gage height, 39.51 ft), from 

raring curve extended above 25,000 cfs on basis of slope-area determination of peak 

flow; minimum, 222 cfs Sept. 20-26 (gage height, 3.71 ft).

1931-51: Maximum discharge, that of Oct. 29, 1950; minimum, 168 cfs Oct. 21, 1931.

Remarks. Records good except those for periods of no gage-height record, which are fair, 

wo storage or diversion.

3.6 

4.0 

5.0 

6.0 

7.0 

9.0

Rating tables, water year 1950-51 (gage height, In feet, 

and discharge, in cubic feet per second)

Oct. 1-29, Dec. 4 to Jan. 17 Oct. 30 to Dec. 3 Jan. 18 to Sept. 30

225

330

670

1,170

1,880

3,950

12

16

20

25

30

35

8,500

17,800

31,000

55,500

85,500

119,000

7.5 2,020

8.0 2,440

11 6,000

15 13,000

20 30,200

25 55,500

30 85,500

220

292

610

1,100

2,580

4,eeo

10,200

23,700

45,000

55,500

Discharge, In cubic feet per second, water year October 1950 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.

a225 

a'STS

a592 

a650

al,880

a3,530

*940

646

634

541

468

414

380

359

350

377

810

1,300

940

84C

774

670

589

543

2.06C

3,19C 

21, 600

91.50C

a78 90C

832^000

364,951

11,770

723,900

Nov.

a!7,900 

*12,500

8,970 

6,830

5,380

4,440

3,760

3,310

2,930

*2,630

2,400

2,230

2,090

2,030

2,430

13,600

20,900

41,900 isieoc

11,900

9,140

7,090

5,790

5,010

4,340

3,850 

4,710

4,070

3,690

6,960

241,580

8,053

479,200

Dec.

8,950 

9,280

63,900 

39,000

*20,300

21,200

28,900

20,900

15,500

11,700

13,900

12,400

9,510

12,400

12,500

9,620

8,500

7,310

6,650

6,240

5,560

4,820

4,340

3,930

3,590

3,300 

3,050

3,240

3,590

4,380

4,730

383,190

12,360

760,000

Jan.

4,070 

5,950

8,370 

12,200

9,090

6,710

5,600

4,880

4,810

8,100

11,900

9,580

7,070

8,190

13,500

13,200

58,400

35,200

17,700

12,400

35,600

23,900

18,300

*16,100

11,300

8,840 

7,260

6,040

5,290

4,590

4,080

395,220

12,750

783,900

Feb.

3,680 

3,700

6,880 

50, 200

26,600

14, 300

14,700

12,800

9,280

9,000

18,600

315,000

*9,960

7,560

6,150

5,170

4,850

4,630

4,240

4,310

4,600

4,140

3,740

3,430

3,290

3,070 

2,890

 2,700 _

_

-

259,470

9,267

514, 700

Mar.

2,560 

2,430

2,360 

5,150

7,620

7,100

7,200

8,450

10,500

6,560

5,130

4,420

4,470

4,080

6,920

*7,490

5,450

4,600

4,530

4,600

4,250

3,950

3, .520

3,370

3,550

3,310 

3,110

2,960

3,020

2,760

2,520

147,940

4,772

293,400

Apr.

2,390 

2,310

2,340 

2,570

2,750

2,670

2,540

2,460

2,400

2,480

2,400

2,240

2,160

2,110

2,000

1,920

1,800

1,670

1,560

 1,440

1,390

1,340

1,300

1,260

1,220

1.180 

1^230

3.060

3,040

2,670

-

61,900

2,063

122,800

May

2,530 

2,590

2,510 

2,550

2,680

2,690

2,620

2,390

2,180

2,050

*2,520

5,060

5,960

4,320

3,530

3,050

2,660

2,380

2,160

1,990

1,850

1,740

1,660

1,540

1,450

1,380 

1,330

1,270

1,220

1,180

1.140

74,180

2,393

147,100

June

1,090 

1,050

1,010 

970

955

930

920

885

860

825

820

795

770

740

714

690

674

646

630

618

622

610

598

*578

551

543 

532

518

507

496

-

22,147

738

43,930

July

486 

479

482 

493

T7?

479

465

452

443

433

421

412

412

403

403

403

394

392

383

378

367

364

358

356

358

353 

348

342

340

340

329

12,547

405

24,890

Aug.

326 

326

326 

321

318

313

305

302

297

 295

289

289

284

282

279

274

274

266

259

259

259

259

259

256

254

252 

'24? 247

334

358 255"

8,906

287

17,660

Sept.

292 

247

242 

264

264

264

261

261

256

249

242

235

235

235

233

233

235

235

229

222

222

222

222

222

222

222 

224

231

249

444

-

7,414

247

14,700

Calendar year 1950: Max 117,000 Mln 214 Mean 6,098 Ac-ft 4,415,000

Water year 1950-51 : Max 117,000 Mln 222 Mean 5,423 Ac-ft 3,926,000

Peak discharge (base. 36,000 cfs). Oct. 29 (about 3 a.m.-) 152,000 cfs (39.51 ft); Nov. 18 (7:30

a.m.; 51,900 cfs (24.35 rt)« Dec. 3 (6 p.m.) 80,700 cfs (29.20 ft); Jan. 17 (4:30 p.m.) 78,600 cfs

(28.85 ft);

» Discharge measurement : made on this day.

a No gage-height record; discharge estimated on basis of records for Salmon River at Somesbar and 

Mad River near Arcata.
MISCELLANEOUS DISCHARGE MEASUREMENTS 491

Measurements of stream flow in the Pacific slope basins in California and Oregon made 

at points other than gaging stations are given in the following table:

Miscellaneous discharge measurements, in cubic feet per second, In the Pacific slope basins 

in California and Oregon, water year October 1950 to September 1951

TIA JUANA RIVER BASIN, CALIF. 

Dulzura conduit 1,000 ft below Barrett Dam, near Dulzura

Date

Mar. 9 

12

Discharge 

(cfs)

10.7 

5.82

Date

Mar. 26

^cfir

1.05 May 2

Discharge 

(ofs)

10.4

Date

May 16

Discharge 

(cfs)

10.4

Tla Juana River at boundary, at San Ysldora

Oct. 

Nov. 

Dec.

11 

16 

12

1 

4 

2

64 1 

52 

59 ||

Apr.

Dec.

Jan.

3,

26 

9 

23

0.96 

.34 

.37

Feb. 7 

21 

Mar. 9

0.

SAN DIEGO RIVER BASIN, CALIF.

Boulder Creek below Cuyamaca Dam 

16.6 cfs; Apr. 3, 26.9 cfs; May 10, 26.3

SAN DIEGUITO RIVER BASIN, CALIF.

35

12 

10

Mar. 20 0.01

cfs

Hodges inflow canal at intake, near Bernardo 

July 23, 22.8 cfs; Sept. 12, 9.6 cfs

Hodges inflow canal at Bernardo Bridge

Oct. 

May

18 

9

4 

21

" June 

July

San Dieguito River

Oct. 

May

Nov. 

Dec.

18 

9

4 

21

6 

29 

30 

11

0

1

1

f 1

San

95 1 

53 

47 

90

June 

July

Luis

Feb. 

Mar. 

Apr.

1 

23

21.7' || Aug. 16 

22.6 || Sept. 12

21. 

9.

at Lake Hodges Reservoir, 2 miles below

1 

23

19.7 

19.9

Aug. 16 

Sept. 13

20. 

8.

San Dleguito conduit at Station 202 

Oct. 18, 18.2 cfs

SAN LUIS REY RIVER BASIN, CALIF.

3 Sept. 13 

50 ||

8.60

Bernardo Bridge

0 

30

Rey River above Pala diversion dam, near Pala

28

15 

5 

13

2.90 

2.35 

2.50 

1.88

Apr. 27 

May 14 

21 

June 11

2. 

2. 

1. 

1.

13 

14 

75 

57

July 17 

Aug . 20 

Sept. 12 

25

0.58 

.16 

.40 

.36

SANTA MARGARITA RIVER BASIN, CALIF.

Temecula Creek 1 mile below dam, near Temecula 

June 11, 3.7 ofs

Temecula Creek 2 miles below dam, near Temecula 

June 11, 0.22 ofs

Temecula Creek 2.1 miles below dam, near Temecula 

June 11, 0 cfs

SAN JUAN CREEK BASIN, CALIF. 

San Juan Mutual Water Co.'s diversion near San Juan Caplstrano

Oct. 10

27

Nov. 16

21

29

Dec. 14

26

0.41

.44

1.25

*1.14

.24

.16

1.03

Jan. 9

11

23

25

Feb. 8

20

Mar. 6

1.08

1.15

*1.09

1.28

0

1.10

.25

Mar. 13

21

Apr. 10

May 8

24

June 13

July 2

*0.87

.24

.08

.21

*0

.49

.42

July 13

30

Sept. 13

14

0.26

.04

*.40

.26

* Measurements furnished by Santa Margarlta Ranch (u. S. Navy) and Pauba Ranch. 

SANTA ANA RIVER BASIN, CALIF.

Diversion from effluent of Riverside Sewage Treatment Plant bypassing gage on 

Santa Ana River at Riverside Narrows

Oct. 3

10

18

24

31

Nov. 6

20

28

8.61

4.89

7.53

3.56

8.59

8.03

3.93

3.64

Dec. 6

12

14

19

26

Jan. 3

9

16

7.48

7 99

3 45

8 . 23

6 , 75

4.47

3.60

8.90

Jan. 23

30

Feb. 5

13

20

27

Mar. 6

13

3.08

6.65

4.42

6.62

4.94

8.85

5.10

8.57

Mar. 19

27

Apr. 3

10

17

6.94

9.67

9.54

3.21

9.62
492 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements, in cubic feet per second, in the Pacific slope basins In 

California and Oregon, water year October 1950 to September 1951--Continued

SANTA ANA RIVER BASIN, CALIF.--Continued 

Santa Ana River at Yorba Bridge

Date

Nov. 14

15

17

20

22

24

27

29

Dec. 1

4

6

8

11

13

15

18

20

26

29

Discharge 

(cfs)

12.1

5.80

0

12.4

5.76

5.28

4.89

14.8

18.3

1.82

5.41

3.39

.72

0

0

10.7

0

10.5

0

Date

Jan. 11

12

15

16

17

19

22

24

26

29

30

31

Feb. 2

5

7

9

13

16

19

Discharge 

(ofs)

0

7.99

9.81

9.71

10.1

8.71

5.05

5.99

3.05

4.24

103

95.3

15.6

7.97

11.2

13.9

13.9

17.9

21.9

Date

Feb. 23

28

Mar. 1

2

5

7

9

12

14

19

21

22

23

26

28

30

Apr. 2

4

9

Discharge 

(ofs)

0

3.60

68.0

82.9

51.4

57.5

51.6

33.8

7.34

27.0

9.55

1.15

1.29

1.42

3.75

0

11.6

10.8

.99

Date

Apr. 16

27

30

May 2

4

7

9

11

14

16

18

21

23

24

25

28

July 4

Sept. 14

Discharge 

(cfs)

0

65.3

49.3

39.3

39.4

29.8

39.9

46.4

89.1

20.9

20.9

8.89

6.26

5.51

1.62

2.56

27.6

0

Santa Ana River at Jefferson Bridge

Nov. 14

15

17

20

22

24

27

29

6.56

1.22

0

1.59

4.11

0

0

0

Dec. 1

6

8

20

Jan. 12

16

17

19

0

0

0

0

1.07

.83

1.41

0

Jan. 24

26

30

31

Feb. 2

5

13

0

0

26.5

19.2

.23

0

.20

Feb. 19

Mar. 2

5

9

19

Apr. 27

May 11

0.61

15.8

2.98

2.24

0

0

0

Santa Ana River at Anaheim-Olive Bridge 

No flow during year based on observations of no flow generally made twice a week

Santa Ana River at Chapman Avenue Bridge 

No flow during year based on observations of no flow generally made twice a week

VENTURA RIVER BASIN, CALIF. 

Matilija Creek 1.5 miles above gaging station above reservoir, near Matilija

Oct. 13

26

Nov. 10

22

Dec. 7

21

Jan. 4

0.58

.74

.65

.85

.82

1.07

1.31

Jan. 12

26

Feb. 2

21

Mar. 8

22

Apr. 4

1.46

1.44

1.31

1.61

1.98

2.12

2.33

Apr. 19

May 4

17

June 6

21

July 5

18

1.86

1.86

1.54

1.25

.95

.64

.51

Aug. 3

15

29

Sept. 13

27

0.42

.30

.29

.24

.20

SANTA YNEZ RIVER BASIN, CALIF. 

Santa Cota Creek at mouth, near Santa Ynez

Oct. 20 

Nov. 28 

Dec. 21 

Jan. 22

1.85 

3.29 

3.22 

3.78

Feb. 20 

21 

Mar. 23

1.76

1.67 

.56

Apr. 16 

May 11 

June 25

1.49 

.30 

.12

July 23 

Sept. 7

21

0.29 

.13 

1.19

Alamo Pintado Creek at Santa Ynez River, near Solvang

Oct. 20 

Nov. 28 

Dec. 21

0.18 

.28 

.28

Jan. 22 

Feb. 21 

Mar. 23

0.30 

.21 

.24

Apr. 16 

May 11 

July 26

0.23 

.25 

.15

Sept. 7 

21

0.14 

.16

Alisal Creek at mouth, near Solvang

Oct. 20 

Nov. 28 

Dec. 20

0 

.05 

.03

Jan. 22 

Feb. 21 

Mar. 23

0.06 

.04 

.04

Santa Ynez Riv

Oct. 20 

Nov. 28 

Dec. 18

0 

0 

0

Jan. 22 

Feb. 21 

Mar. 23

0.26 

0 

1.10

Apr. 16 

May 11 

June 25

0.02 

.01 

0

July 19 

Aug. 29 

Sept. 21

0 

0 

0

er at Buellton

!

Apr. 16 

May 11 

July 18

0.74 

.57 

0

June 25 

Aug. 28 

Sept. 21

0 

0 

0

Nojoqul Creek at Santa Ynez River, near Buellton

Oct. 20 

Nov. 28 

Dec. 18

0 

0 

0

Jan. 22 

Febi 21 

Mar. 23

0 

0 

0

Apr. 16 

May 11 

June 25

0 

0 

0

July 18 

Aug. 28 

Sept. 21

0

0 

0

La Zaca Creek 5.0 miles above mouth, near Buellton

Oct. 20 

Nov. 28 

Dec. 18

0.02 II Jan. 22 

.08 Feb. 21 

.10 || Mar. 23

0.12 

.13 

.15

Santa Rosa Creek at

Oct. 20 

Nov. 28 

Dec. 20 

Jan. 22

0.32 

.33 

.26 

.36

Feb. 20 

21 

Mar. 23

0.36 

.35 

.38

[ May 11 

June 25 

July 18

0.12 

.06 

.04

Aug. 29 

Sept. 21

0.04 

.05

mouth, near Buellton

Apr. 16 

May 29 

June 25

0.40 

.30 

.28

July 19 

Aug. 29 

Sept. 21

0.21 

.23 

.28
MISCELLANEOUS DISCHARGE MEASUREMENTS 493

Miscellaneous discharge measurements, In cubic feet per second, In the Pacific slope basins In 

California and Oregon, water year October 1950 to September 1951 Continued

SANTA YNEZ RIVER BASIN, CALIF. Continued 

Santa Ynez River at Santa Rosa damslte

Date

Oct. 20 

Nov. 28 

Dec. 20

Discharge 

(efs)

0 

0 

0.04

Date,

Jan. 22 

Feb. 21 

Mar. 23

Discharge 

(cfs)

0.19 

.18 

.22

Date

Apr. 16 

May 7 

June 25

Discharge 

(cfs)

0 

.01 

.02

Date

July 19 

Aug. 29 

Sept. 21

Discharge 

(cfs)

0 

0 

0

Salslpuedes Creek at mouth, near Lompoc

Oct. 20 

Nov. 28 

Dec. 20

0 Jan. 22 

.16 Feb. 21 

.15 I) Mar. 23

1.07 

.62 

.64

Apr. 16 

May 29 

June 25

0.50 

.10 

0

July 19 

Aug. 29 

Sept. 21

0 

0

0

SANTA MARIA RIVER BASIN, CALIF. 

Cuyama River below Cottonwood Creek, near Cuyama

Oct. 24 

Nov. 21

0 May 1 

3.84 || June 5

6.95 

0

July 18 

Aug. 28

0 

0 II

Cuyama River below Gypsum Creek, near Cuyama

Oct. 24 

Nov. 21

0 

0

May 1 

June 5

4.10 || July 18 

0 [I Aug. 28

0

o II

La Brea Creek 1.1 miles above gaging station, near Slsquoc

Oct. 23 

Nov. 20 

Dec. 18

0.19 

1.32 

.50

Jan. 7 

29 

Feb. 26

0.70 || Mar. 26 

1.01 Apr. 23 

.53 || May 21

0.70 

.65 

.54

June 18 

July 17 

Aug. 27

0.41 

.22 

.19

Santa Maria River below confluence of Cuyama and Slsquoc Rivers, at Fuglers Point near Garey

Nov. 20 

Dec. 4 

18

120 || Jan. 2 

0 12 

0 || Feb. 13

51.0 | Feb. 23 

0 | 26 

0 || 27

0 

0 

0

Mar. 12 0

PAJARO RIVER BASIN, CALIF.

Pacheco Creek at storage dam above gaging station, near Dunnevllle 

July 16, 12.3 efs; Sept. 12, 13.2 efs

 Pacheco Creek below percolation dam below gaging station, near Dunnevllle

July 16 0.28 || July 17 0.37 || Sept. 12 O.'SO ||

 Arroyo Dos Plcachos near Holllster

Oct. 18 

Nov. 1 

22 

28 

Dee. 6

0.12 

.20 

16.5 

3.22 

11.3

Jan. 21 

Feb. 7 

Mar. 7 

29

7.1 

4.58 

21.2 

1.88

Apr. 12 

26 

June 5 

20

1.05 

.78 

.22 

.32

July 11 

25 

Aug. 30 

Sept. 12

0.10 

.08 

.06 

0

Tres Plnos Creek at mouth, near Holllster

Nov. 21 

Dec. 5

Jan. 20

1.04 

10.0 

31.3

Jan. 21 

23 

Feb. 5

14.0 

2.25 

0

Feb. 6 

7 

Mar. 6

1.O8 

0 

49.8

Mar. 7 

8 

9

27.6 

13.8 

4.59

San Benlto River at bridge on Highway 156, near Holllster

Nov. 20 

22 

28 

Dec. 6

133 

18.5 

0 

16.4

Jan. 19 

20 

20 

21

42.4 

28.4 

27.0 

10.8

Jan. 21 

23 

Feb. 5 

7

8.0 

0 

0 

0

Mar. 6 

6 

7 

7

63 

78 

46.8 

38.8

San Benlto River at bridge on TJ. S. Highway 101, near San Juan Bautlsta

Nov. 21 

Jan. 20

6.4 

0

Jan. 21 

Mar. 6

0 || Mar. 6 

36 . 5 |J 6

25.2 

21.3

Mar. 7

7

9.2 

6.6

TULARE LAKE BASIN, CALIF.

South tunnel at Pine Flat Dam on Kings River 

Sept. 24, 27.4 efs

SAN JOAQTJIN RIVER BASIN, CALIF.

Mud Slough near Fremont Ford Bridge 

Dec. 8, 561 cfs; Dec. 14, 1,160'cfs

Merced River 1.1 miles upstream from mouth 

Dec. 6, 7, 940 cfs

South San Joaquln Canal 400 ft below North Main Canal, near Knights Ferry 

Apr. 24, 708 cfs; May 14, 797 cfs '

North Main Canal of Oakdale Irrigation District, near Knights Ferry 

Apr. 24, 270'efs

Utlca Canal at former gaging station, near Avery 

Apr. 12, 46,4 cfs

SACRAMENTO RIVES BASIN, CALIF. 

North Pork Feather River below Rock Creek Dam

May July 11 Sept. 7 |
494 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements, in cubic feet per second, in the Pacific slope basins in 

California and Oregon, water year October 1950 to September 1951--Contlnued

SACRAMENTO RIVER BASIN, CALIF.--Continued 

North Fork Feather River below Cresta Dam

Date

Nov. 3

Discharge 

(cfs)

78

Date

May 4

Discharge 

(cfs)

193

Date

July 11

Discharge 

(cfs)

50

Date

Sept. 7

Discharge 

(cfs)

42.0

Seepage from Silver Lake at former gaging station, near Kirkwood 

July 26, 10.5 cfs

Eldorado Canal at Camp 5 

May 3, 165 cfs

SMALL BASINS IN CALIFORNIA BETWEEN SACRAMENTO AND EEL RIVER BASINS

North Fork Gualala River 1.25 miles upstream from Little North Fork 

Gualala River, near Gualala

July 19 

Aug. 9

6.9 

5.6

Garcia River

July 17 

Aug. 9

19.4 

17.5

Aug. 29 

|| Sept. 10

4.19 

3.95

Sept. 25 3.22 j

0.6 mile downstream from North Fork Garcia River, r

O

Aug. 29 

Sept. 10

13.8 

11.1

I Sept. 25

ear Point Arena

10.1 II

Alder Creek 1.3 miles from mouth, near Manchester

July 19 

Aug. 9

3.74 

3.15

| Aug. 29 

1 Sept. 9

2.66 

2.30

Sept. 25 , |

Elk Creek 1.0 mile from mouth, near Elk

July 18 

Aug. 9

5.5 

4.40

| Aug. 29 

| Sept. 9

3.33 

2.98

Sept. 25 2.87

Greenwood Creek 1.3 miles from mouth, near Elk

July 18 

Aug. 9

1.82

1.10 U

Aug. 29 

Sept. 9

0.68 

.76

Big River 200 ft upstream from Little

July 17 

Aug. 8

13.5 

7.1

South Pork Te

July 16 

Aug. 8

2.80 

.24

1 Aug. 29 

| Sept. 9

5.7 

5.4

Sept. 25 0.60 J 

i

North Fork Big River, near Mendoclno

Sept. 24 4.82 | 

1

n Mile River 0.5 mile upstream from Campbell Creek,

| Aug. 29 

| Sept. 9

0.88 

.77

Sept. 24

near Port Bragg

0.63

Middle Pork Ten Mile River 200 ft upstream from North Pork Ten Mile River, near Port Bragg

July 16 

Aug. 8

7.8 

4.96

| Aug. 28 

| Sept. 9

4.68 

4.19

Sept. 23 ' " 1

North Pork Ten Mile River 0.25 mile upstream from Middle Pork Ten Mile

July 16 

Aug. 8

8.3 

5.8

Aug. 28 

Sept. 9

4.80 

4.35

Sept. 23 3.55

River, near Port Bragg

Bear River 3.0 miles from mouth, near Capetown

July 14 

Aug. 6

17.6 

14.4

Aug. 20 

Sept. 7

10.9 | 

9.0

Sept. 21 7.2

EEL RIVER BASIN, CALIP. 

Black Butte River 0.25 mile from mouth, near Covelo

July 9 

Aug. 7

12.4 

3.21 |

Nor

Aug. 7 

20

1.70 1 

1.22 |

Aug. 20 

27

2.15

2.11

Sept. 8 

22

1.82 

1.25

th Pork Eel River at highway bridge, 4 miles south of Mlna

Aug. 27 

Sept. 8

1.44 j 

1.11 1

Sept. 22 0.82 II

Van Duzen River 2.0 miles upstream from South Pork Van Duzen River, near Cobbs

Aug. 8 2.90 |. Aug. 22 2.78 | Sept-. 5 2.28 Sept. 18 2.22

South Pork Van Duzen River at highway bridge, 2.3 miles from mouth and 13 miles 

east of Bridgeville

July 11 

Aug. 7

7.4 

3.39 ||

Aug. 22 

Sept. 5

2.87 1 

2.28 1

Sept. 18 ... ||

JACOBY CREEK BASIN, CALIP. 

Jaeoby Creek 3.8 miles from mouth, near Bayside

July 13 

Aug. 14

2.02 II 

.95 |j

Aug. 24 

Sept. 6

0.97 1 

.76 1

Sept. 20 0.72
MISCELLANEOUS DISCHARGE MEASUREMENTS 495

Miscellaneous discharge measurements, in cubic feet per second, In the Pacific slope basins in 

California and Oregon, water year October 1950 to September 1951--Continued

MAD RIVER BASIN, CALIF. 

Mad River at highway bridge at Mad River, 24 miles east of Brldgeville

Date

July 11 

Aug. 8

Discharge 

(cfs)

5.5 

2.18

Date

Aug. 22 

Sept. 5

Discharge 

(cfs)

1.95 

1.05

Date

Sept. 18

Discharge 

(cfs)

1.18

Date Discharge 

(cfs)

REDWOOD CREEK BASIN, CALIF.

Redwood Creek at highway bridge, 0.5 mile downstream from Grassy Point Creek and 

15 miles east of Blue Lake

Aug. 25 

Sept. 6

9.2 

6.8

Sept.19

Redwood Creek 5.2 miles from mouth, near Orick

Aug. 24 

Sept. 6

23.9

19.0

Sept.20

KLAMATH RIVER BASIN

Big Spring Creek, sec. 22, T. 30 S., R. 8 E., 1/3 mile above tributary

on Lenz Ranch, Oreg.

Sept. 1, 28.3 cfs

Soott and Sand Creek Canals, 50 ft below junction of canals, near 

Fort Klamath, Oreg. 

Sept. 1, 26.9 cfs

Williamson River, at former gaging station above Spring Creek, 

near Klamath Agency, Oreg. 

Sept. 1, 25.6 cfs

Spring Creek, NEij sec. 9, T. 34 S., R. 7 E., at mouth,

about 4 miles north of Chiloquin, Oreg.

Sept. 1, 322 cfs

Shakespeare Creek, see. 14, T. 34 S., R. 7 E., about 3 miles

north of Chiloquin, Oreg.

Sept. 1, 0 cfs

Flvemile Creek at former gaging station, 

near Beatty, Oreg. 

Aug. 30, 20.1 cfs

Sprague River, SE-J see. 18, T. 36 S., R. 13 E. , about

5- mile below former gaging station near Beatty, Oreg.

Aug. 9, 107 cfsj Aug. 30, 106 cfs

Sycan River at former gaging station near Beatty, Oreg. 

Aug. 30, 2.86 cfs

Kamkaun (McCready) Spring, sec. 25, T. 34 S., R. 8 E., about

8 miles east of Chiloquin, Oreg,

Sept. 1, 47.1 cfs

Anna Creek at former gaging station near Fort Klamath, Oreg. 

Sept. 1, 72.0 cfs

Wood River, see. 10, T. 33 S., R. 7-J E., below Anna and Sun Creeks, 

about 2 miles above former gaging station near Fort Klamath, Oreg. 

Sept. 1, 306 cfs

Wood River at former gaging station near Fort Klamath, Oreg. 

Sept. 2, 332 cfs

Fort Creek and diversion, sec. 26, T. 33 S., R. ?i E., at highway

crossing below diversion, Oreg.

Sept. 2, 97.3 cfs

Agency Canal at intake, at Klamath Agency, Oreg. 

Sept. 2, 2.05 cfs

Sevenmile Creek, Sec. 36, T. 33 S., R. 6 E., at bridge below diversions (none

at time of measurement), 3 miles southeast of Fort Klamath, Oreg.

Sept. 2, 60.6 cfs

Lost River, sec. 18, T. 39 S., R. 12 E., at Irwln pump statlcin, 3 miles 

southeast of Bonanza, Oreg. 

Nov. 22, 32.0 cfs

Buck Creek, SW-J sec. 6, T. 39 S., R. HE., 2 miles above mouth and

4 miles northwest of Bonanza, Oreg.

Nov. 22, 1.41 cfs

Lost River, SE£ see. 19, T. 39 S., R. 11 E., 250 ft below Harpold Dam, 1 mile

below Buck Creek and 4 miles southwest of Bonanza, Oreg.

Nov. 22, 118 cfs

Spencer Creek, sec. 29, T. 39 S,, R. 7 E., at mouth, 5 miles

northwest of Keno, Oreg.

Sept. 2, 24.5 cfs

Keene Creek at former gaging station, near Lincoln, Oreg. 

Sept. 2, 0.048 cfs
496 MISCELLANEOUS DISCHARGE MEASUREMENTS

MleoellaneouB discharge measurements, In cubic feet per second, In the Pacific elope basins in 

California and Oregon, water year October 1950 to September 1951--Continued

KLAMATH RIVER BASIN--Continued 

Bluff Creek 0.5 mile from mouth, near Weithpec, Calif.

Date

July 12

Discharge 

(cfs)

72

Date

Aug. 15

Discharge 

(cfs)

65

Date

Sept. 19

Discharge 

(cfs)

34.7

Date Discharge 

(cfs)

Hay Pork Trinity River 0.25 mile from mouth, at Hyampom, Calif.

July 11 

Aug. 8

58 II Aug. 22 

29.2 || Sept. 5

28.7 || Sept. 18 

24.5 ||

20.9

South Fork Trinity River 0.25 mile upstream from Hay Pork Trinity River, at Hyampom, Calif.

July 11 

Aug. 8

74 || Aug. 22 

42.6 || Sept. 5

36.4 || Sept. 18 

27.7 ||

23.8

SMITH RIVER BASIN, CALIF.

South Fork Smith River 2.0 miles from mouth, near Crescent City 

Aug. 28, 126 cfs

Middle Fork Smith River above Siskiyou Fork, 3.2 miles below Idlewood 

Oct. 29, t7,550 cfs

t Flow at crest stage; computed by slope-area method.
INDEX

Page 

"A" Canal at Klamath Falls, Oreg....... 471

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

Acre-foot definition of..... ......... 2

Agencies other than Geological Survey,

records collected by............. 11-14

Agency Canal, Oreg., discharge measurement of.......................... 495

Alameda Creek near Niles, Calif........ 195

Alamitos Creek near Edenvale, Calif.... 188

Alamo Creek near Santa Maria, Calif.... 157

Alamo Pintado. Creek, Calif., discharge

measurements of.................. 492

Alder Creek, Calif., discharge measurements of... ..................... 494

near Whitehall, Calif................ 428

Alisal Creek, Calif., discharge measurements of......................... 492

Aliso Creek at El Toro, Calif.......... 46

Alpine, Calif., Sweetwater River near.. 22 

American River at Fair Oaks, Calif..... 436

at Sacramento Calif................. 437

Middle Fork, near Auburn,'Calif...... 420

North Fork, at North Fork Dam, Calif. 415 

at Rattlesnake Bridge, Calif....... 421

South Fork, near Camino, Calif....... 433

near Kyburz, Calif................. 427

near Lotus, Calif.................. 434

American River flume near Camino, Calif. 432 

Andreas, Calif., San Domingo Creek

near............................ 304-305

Anna Creek, Oreg., discharge measurement of.......................... 495

Antelope Creek near Red Bluff, Calif... 357 

Arcata, Calif., Mad River near......... 467

Arlington, Calif., Santa Ana River near 69 

Arrowhead Springs, Calif., Strawberry

Creek near....................... 58

Waterman Canyon Creek near........... 59

Arroyo de la Cruz near San Simeon,

Calif............................ 164

Arroyo Dos Picachos, Calif., discharge

measurements of.................. 493

Arroyo Grande at Arroyo Grande, Calif.. 163 

Arroyo Seco (Los Angeles River basin)

near Pasadena, Calif............. Ill

Arroyo Seco (Salinas River basin) near

Soledad, Calif................... 174

Artesia, Calif., Coyote Creek near..... 101

Ashland, Oreg., Keene Creek near....... 481

Atascadero Creek near Goleta, Calif.... 138

Auberry, Calif., Big Sandy Creek near.. 248 

Auburn, Calif., Bear River near........ 408

Middle Fork American River near...... 420

Avery, Cfalif., Middle Fork Stanislaus

River near....................... 292

North Fork Stanislaus River near..... 293

Azusa, Calif., Rogers Creek near....... 90

San Gabriel River near............... 89

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

Bakersfield, Calif., Kern River near...

Baldwin Park, Calif., San Gabriel River

near.............................

Ballona Creek near Culver City, Calif.. 

Bangor, Calif., South Honcut Creek near 

Battle Creek near Cottonwood, Calif....

Bautista Creek near Hemet, Calif.

Bear Creek tributary to San Joaquin

River near Lockeford, Calif. 

Bear Creek tributary to South Fork San 

Joaquin River) near Vermilion 

Valley, Calif....................

Bear River (Sacramento River basin),

Calif., discharge measurements of 

near Auburn, Calif...................

near Coifax, Calif...................

near WhQatland, Calif................

Bear River (San Joaquin River basin) at 

Pardoe Camp, Calif...............

270

208

92

121

389

354

77

314

236

494

408

407

409

319

Bear River Canal near Colfax, Calif.... 406

Beaumont, Calif., Little San Gorgonio

Creek near....................... 55

Beaver Creek near Lilyglen, Oreg....... 480

Bidwell Bar, Calif., Feather River at.. 376 

Big Bar, Calif., North Fork Feather

River at......................... 384

Big Bear Lake near Big Bear Lake, Calif 47 

Big Bend, Calif., Pit River at......... 343

Big Creek below Huntington Lake, Calif. 241 

Florence Lake near................... 233

Huntington Lake near................. 240

San Joaquin River above.............. 238

Shaver Lake -near..................... 244

Big River, Calif., discharge measurements of......................... 494

Big Sandy Creek near Auberry, Calif.... 248

Big Spring Creek, Oreg., discharge

measurement of................... 495

Big Trees, Calif., San Lorenzo River at 184 

Black Butte River, Calif., discharge

measurements of.................. 494

Bluff Creek, Calif., discharge measurements of......................... 496

Bonsall, Calif., San Luis Rey River

near............................. 38

Borel Canal at Tilley Creek, Calif..... 200

Boulder Creek at Cuyamaca Reservoir,

near Julian, Calif............... 24

discharge measurements of............ 491

IBownan Lake, Calif., Canyon Creek below 399 

Bowman Lake near Graniteville, Calif... 397 

Bowman-Spaulding Canal at intake, Calif. 398 

Bradley, Calif., Salinas River near.... 173

Branscomb, Calif., South Fork Eel River

near............................. 462

Brea, Calif., Fullerton Creek near..... 99

Brea Creek at Fullerton, Calif......... 99

below Brea Dam, near Fullerton, Calif. 98

Bridgeville, Calif., Van Duzen River at 465

Van Duzen River near................. 466

Brownsville, Calif., Dry Creek near.... 403

Buchanan dam site, Calif., Chowchilla

River at......................... 262

Buck Creek, Oreg., discharge measurement of.......................... 495

Bucks Creek Reservoir near Bucks Ranch,

Calif............................ 383

Buellton, Calif., La Zaca Creek at..... 150

Santa Ynez River near................ 151

Bullards Bar Dam, Calif., North Yuba

River below...................... 395

Butt Creek above Almanor-Butt Creek

tunnel, near Prattville, Calif... 379 

below Almanor-Butt Creek tunnel,

near Prattville, Calif........... 380

Butte City, Calif., Sacramento River at 365 

Butte Creek near Chico, Calif.......... 367

Cache Creek at Yolo, Calif............. 443

near Capay, Calif.................... 442

near Lower Lake, Calif............... 440

North Fork, near Lower Lake, Calif...4, 441 

Cachuma Creek near Santa Ynez, Calif... 147 

Cajon Creek near Keenbrook, Calif...... 64

Calabasas, Calif., Malibu Creek near... 123 

Calaveras River at Jenny Lind, Calif... 312 

Calpella, Calif., East Fork Russian

River near....................... 452

Camino, Calif., American River flume

near............................. 432

Camp Creek near...................... 329

South Fork American River near....... 433

Camp Bonita, Calif., East Fork San

Gabriel River near............... 87

Camp Creek near Camino, Calif........... 329

Camp Rincon, Calif., West Fork San

Gabriel River at................. 88

Campbell Creek at Saratoga. Calif...... 192

CampoCreek near Campo, Calif........... 19

497
INDEX

near.

Cubic feet per second per square mile,

definition of.

399

442

101

137

470 Culver City, Calif., Ballona Creek near 

Cupertino, Calif., Stevens Creek near..

Cubic foot per second, definition of.. 

Cucamonga Creek near Upland, Calif.

Canby, Calif., Pit River near.......... 339 Crescent Mills, Calif., Indian Creek

Canyon Creek below Bowman Lake, Calif.. 

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

Carbon Creek near Yorba Linda, Calif.., 

Carpinteria Creek near Carpinteria,

Calif............................

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

Cedar Grove, Calif., South Fork Kings

River near.......................

Cfs-day, definition of.................

Cherry Creek near Hetch Hetchy, Calif., 

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

Chico Creek near ....................

Chico Creek near Chico, Calif. ........

Chiloquin, Oreg., Sprague River near... 

Williamson River near................

Chittenden, Calif., Pajaro River near., 

Chowchilla River at Buchanan dam site,

Calif............................

Cisco, Calif., South Yuba River near.

228

2

280

367

363

363

468

469

183

262

396

City Creek near Highland, Calif........ 60-61

Claremont, Calif., San Antonio Creek

 near............................. 79-80

Clear Creek at French Gulch, Calif..... 350

near Igo, Calif...................... 351

Clear Lake at Lakeport, Calif. ......... 439

Clements, Calif., Mokelumne River near. 324 

Cliff Camp, Calif., North Fork Kings

River near....................... 230

Clio, Calif., Middle Fork Feather River

near............................. 371

Clipper Mills, Calif., Lost Creek near. 373 

Cloverdale, Calif., Dry Creek near..... 455

Coalinga, Calif., Los Gatos Creek near. 232 

Colby Ranch, Calif., Tujunga Creek

near............................104-107

Cold Creek near Mokelumne Peak, Calif.. 318 

Coifax,-Calif., Bear River near........ 407

Bear River Canal near................ 406

Colton, Calif., Warm Creek near........ 67.-

Colusa, Calif., Sacramento River at..,. 3 

Computations, accuracy of results of... 

Concow Creek near Yankee Hill, Calif... 385 

Conn Creek near St. Helena, Calif...... 449

Contents, definition of................ 2

Control, definition of................. 2

Cooperation, record of................. 1

Copco, Calif., Fall Creek at........... 478

Klamath River near................... 479

Corona, Calif., Santa Ana River near... 72,7; 

Temescal Creek near.................. 78

Cosgrove Creek near Valley Springs,

Calif............................ 311

Cosumnes River at McConnell, Calif..... 334

at Michigan Bar, Calif............... 333

near Plymouth, Calif................. 332

North Fork, at Cosumnes Mine, Calif.. 328 

near El Dorado, Calif.............. 331

Cottonwood, Calif., Battle Creek near.. 354 

Cottonwood Creek near...............

Cottonwood Creek (Goose Lake basin)

near Lakeview, Dreg.............. 336

Cottonwood Creek (Sacramento River

basin) near Cottonwood, Calif.... 353 

Cottonwood Creek (San Joaquin River

basin) near Friant, Calif........ 25

Cottonwood Creek (Tia Juana River

basin) above Tecate Creek, near

Dulzura, Calif................... 18

at Morena Dam, Calif................. 16

Cow Creek near Millville, Calif........ 352

Coyote Creek (tributary to San Francisco Bay) ne;ar Edenvale, Calif..... 194

near Madrone, Calif.................. 19;

Coyote Creek basin, Calif., gagingstation records in..............193-194

Coyote Creek (tributary to San Gabriel

River) near Artesia, Calif....... 101

Coyote Creek (tributary to Ventura

River) near Ventura, Calif....... 135

Craftonville, Calif., Mill Creek near.. 50-51 

Crane Valley Reservoir, Calif., Pacific

Gas & Electric Co. conduit No. 3

near............................. 245

North Fork Willow Creek below........ 246

Crescent City, Calif., Smith River near

Page 

381

2

2

74

121

187

493

156

155

24

94 

7 

explanation of....................... 3-7

Daulton, Calif., Fresno River near..... 261

Davis, Calif., Putah Creek near........ 447

Day Creek near Etiwanda, Calif. ........ 70-71

362

Cuyama River, Calif., discharge measurements of.........................

near Santa Maria, Calif..............

near Ventucopa, Calif................

Cuyamaca Reservoir, Calif., monthly

contents of.

Dalton Creek near Glendora, Calif......

Data, accuracy of.

(tributary to Sacramento 

) near Vina, Calif.

Deer Creek

River, 

Deer Creek (tributary to Yuba River)

near Smartville, Calif. 402

Delta, Calif., Sacramento River at... 337

Democrat Springs, Calif., Kern River

near............................206-207

Kern River No. 1 conduit near.......204-205

Devil Canyon Creek near San Bernardino,

Calif.

Don Pedro Reservoir near La Grange,

Calif............................

Dos Palos, Calif., San Joaquin River

near.............................

Douglas City, Calif., Trinity River

near.............................

Downey, Calif., Los Angeles River near.

Rio Hondo near. 

Drainage area, definition of.........

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

Dry Creek (Russian River basin) near

Cloverdale, Calif.

Dry Creek (Sacramento River basin) at

286

259

487

112

119

2

335

455

Virginia Ranch, Calif............ 404

near Brownsville, Calif.............. 403

near Wheatland, Calif.............. .41Q-»412

Dry Creek (San Joaquin River basin)

near Gait, Calif................. 327

Duarte, Calif., Fish Creek near........ 4, 91

Ducor, Calif., White River near........

Dulzura, Calif., Cottonwood Creek near.

Dulzura conduit near.

Tia Juana River near.

Dulzura conduit, Calif., discharge

measurements of.

210

18

17

20

491

Dunneville, Calif., Pacheco Creek near. 176

East Highlands, Calif., Plunge Creek

near............................. 53-54

Eaton Creek near Pasadena, Calif....... 116

Echo Lake conduit near Vade, Calif..... 422

Edenvale, Calif., Alamitos Creek near.. 188 

Coyote Creek near.................... 194

Eel River at Hullville, Calif.......... 459

at Scotia, Calif....'................. 464

at Van Ardsdale Dam, near Potter

Valley, Calif.................... 461

North Fork, Calif., discharge measurements of......................... 494

South Fork near Branscomb, Calif..... 462

near Miranda, Calif ................ 463

Eel River basin, Calif., gaging-station

records in......................458-466

El Capitan Dam, Calif., San Diego River

at.

El Capitan Reservoir, Calif., monthly

contents of.

El Dorado, Calif., North Fork Cosumnes

River near.

El Portal, Calif., South Fork Merced 

River near.....................

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

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

near Paskenta, Calif...............

Eldorado Canal, Calif., discharge

measurement of.................

25

25

331

269

46

360

359

494
Page 

Eldorado Canal near Kyburz, Calif...... 426

Eleanor Creek near Hetch Hetchy, Calif. 282: 

Elk Creek, Calif., discharge measurements of......................... 494'

Elsinore, Calif., Elsinore Lake at..... 78

San Jacinto River near............... 78

Elsinore Lake at Elsinore, Calif....... 78

Enterprise, Calif., Palermo Canal at... 374

South Fork Feather River at.......... 375

Esperanza Creek near Mokelumne Hill,

Calif............................ 308

Etiwanda, Calif., Day Creek near....... 70-71

Exchequer, Calif., Lake McClure at..... 271

Merced River at...................... 272

Fair Oaks, Calif., American River at... 436 

Fall Brook, Calif., Santa Margarita

River at. ........................ 42

Fall Creek at Copco, Calif. ..... ...... 478

Fall River Mills, Calif., Pit River at. 340 

Falls Creek near Hetch Hetchy, Calif... 277 

Feather River at Bidwell Bar, Calif.... 376

at Nicolaus, Calif. . .. ............ 413

Middle Fork, below Sloat, Calif...... 372

near Clio , Calif................... 371

near Oroville, Calif.... ............ 388

North Fork, at Big Bar, Calif........ 384

discharge measurements of.. ......493-494

near Prattville, Calif ............ 378

South Fork, at Enterprise, Calif..... 375

West Branch, near Yankee Hill, Calif. 387 

Fillmore, Calif., Fillmore Irrigation

Co 's canal near................. 128

Sespe Creek near..................... 129

Fillmore Irrigation Co.'s canal near

Fillmore, Calif.................. 128

Fine Cold Creek near Friant, Calif..... 249

Fish Creek near Duarte, Calif.......... 4, 91

Fish Lake, Oreg., Cascade Canal near... . 470

Fivemile Creek, Oreg., discharge

measurement of................... 495

Floods, special reports on. ......:..-... 11

Florence Lake, Calif., South Fork San

Joaquin River near............... 235

Florence Lake near Big Creek,' Calif.... 233

Fontana, Calif., Lytle Creek near...... 62-63

Fontana pipe line. See Lytle Creek

near Fontana.

Foster, Calif., San Vicente Creek at... 26 

Fort Creek, Oreg., discharge measurement of.......................... 495

Fort Jones, Calif., Scott River near... 483 

Fourmile Lake Reservoir, Oreg., contents of......................... 489

Fremont Ford Bridge, Calif., San

Joaquin River at................. 264

French Gulch, Calif., Clear Creek at... 350 

Fresno River near Daulton, Calif....... 261

near Knowles, Calif.................. 260

Friant, Calif., Cottonwood Creek near.. 253 

Fine Gold Creek near................. 249

Friant-Kern Canal at................. 252

Little Dry Creek near................ 255

Madera Canal near.................... 251

Millerton Lake at.................... 250

San Joaquin River below.............. 254

Friant-Kern Canal at Friant, Calif..... 252

Fullerton, Calif., Brea Creek at......'. 99

Brea Creek near...................... 98

Fullerton Creek at.....'.............. 100

Fullerton Creek at Fullerton, Calif.... 100

below Fullerton Dam, near Brea, Calif. 99

Gait, Calif., Dry Creek near........... 327

Garcia River, Calif., discharge measurements of... v ..................... 4 94

Garey, Calif., Sisquoc River near...... 161

Georgetown, Calif., Georgetown ditch

near............................417,418

Pilot Creek near..................... 419

Rubicon River near................... 416

Georgetown ditch above Pilot Creek,

near Georgetown, Calif........... 417

near Georgetown, Calif............... 418

Gerber, Calif., Elder Creek at......... 360

Gibraltar Reservoir, Calif., monthly

contents of...................... 141

Glendora, Calif., Dalton Creek near.... 94

Little Dalton Creek near............. 95

Goleta, Calif., Atascadero Creek near.. 138 

San Jose Creek near.................. 139

Goodyears Bar, Calif., North Yuba River

below............................ 394

Goose Lake basin, Oreg., gaging-station

records in......................335-336

Graniteville, Calif., Bowman Lake near. 397 

Gratbn, Calif., Laguna de Santa Rosa

near............................. 456

Greenwood Creek, Calif., discharge

measurements of.................. 494

Grizzly Creek near Portola, Calif...... 370

Guadalupe, Calif., Los Capitancillos

Creek at......................... 189

Santa Maria River at................. 162

Guadalupe River at San Jose, Calif..... 191

Guadalupe River basin, Calif., gagingstation records in..............188-192

Gualala River, North Fork, Calif.,

discharge measurements of........ 494

Guejito Creek at San Pasqual, Calif.... 32

near San Pasqual, Calif.............. 31

Guenoc, Calif., Putah Creek near....... 445

Guerneville, Calif., Russian River at.. 457

Haines Creek near Tujunga, Calif....... 108

Hamilton City, Calif., Stony Creek near 364 

Hansen Dam, Calif., Tujunga Creek below 109 

Harris, Calif,, San Antonio Creek at... 155 

Hat Creek near Hat Creek, Calif........ 341

Hayward, Calif., San Lorenzo Creek at.. 196 

Healdsburg, Calif., Russian River near. 454 

Hemet, Calif., Bautista Creek near..... 77

Hernandez, Calif., San Benito River

near............................178-179

Hetch Hetchy, Calif., Cherry Creek near 280 

Eleanor Creek near................... 282

Falls Creek near..................... 277

Hetch Hetchy Reservoir at............ 278

Lake Eleanor near.................... 281

Tuolumne River near.................. 279

Hetch Hetchy Reservoir at Hetch Hetchy,

Calif.. .......................... 278

Highland, Calif., City Creek near...... 60-61

Hodges inflow canal at Bernardo Bridge,

Calif., discharge measurements of 491 

at intake, near Bernardo, Calif...... 491

Hollister, Calif., San Benito River

near............................. 182

Hoopa, Calif., Trinity River near...... 488

Hopland, Calif., Russian River near.... 453

Hopper Creek near Piru, Calif. ......... 126

Huasna River near Santa Maria, Calif... 158 

Hullvllle, Calif., Eel River at........ 459

Lake Pillsbury at.................... 458

Huntington Lake near Big Creek, Calif.. 240 

Huntington Lake, Calif., Big Creek

below............................ 241

Huntington-Shaver conduit at outlet,

Calif............................ 243

Hyatt Prairie Reservoir, Oreg., contents of......................... 489

Hydrologic conditions.................. 14

diagram of........................... 15

Ice House, Calif., South Fork Silver

Creek near....................... 430

Igo, Calif., Clear Creek near .......... 351

Indian Creek near Crescent Mills, Calif. 381 

Irving, Calif., San Diego Creek near... 46 

Isabella, Calif., South Fork Kern River

at. .............................. 202

Isabella dam site, Calif., Kern River

below............................ 203

Jack Creek near Templeton, Calif....... 169

Jacksonville, Calif., Woods Creek near. 285

Jacoby Creek, Calif., discharge measurements of.........................

James bypass near San Joaquin, Calif...

Jameson Lake, Calif., monthly contents 

of...............................

Jamul Creek near Jamul, Calif..........

Jenny Lind, Calif., Calaveras River at.

Jesus Maria Creek near Mokelumne Hill,

Calif........ .......................309-310

494

256

140

a!*
500 INDEX

Julian, Calif., Boulder Creek near....

Page 

24

Kamkaun Spring, Calif., discharge

measurement of.................. 495

Kaweah River, Marble Fork, at Potwisha

Camp, Calif....................823-224

No. 3 conduit at Potwisha Camp,

Calif..........................220-22

Middle Pork, near Potwisha Camp,

Calif..........................218-219

Nlo. 3 conduit near Potwisha

Camp, Calif....................215-217

near Three Rivers, Calif............ 226

North Fork, at Kaweah, Calif........ 225

Keddie, Calif., Spanish Creek at...... 382

Keenbrook, Calif., Cajon Creek near... 64 

Lone Pine Creek near................ 65

Keene Creek at Hyatt Prairie, near

Ashland, Oreg................... 481

discharge measurement of............ 495

Kelsey Creek near Kelseyville, Calif.. 438 

Kelseyville, Calif., Kelsey Creek near 438 

Kennedy Meadows, Calif., Middle Fork

Stanislaus River at............. 291

Keno, Oreg., Klamath River at......... 477

Keno Canal at Klamath Falls, Oreg..... 472

Kerckhoff powerhouse, Calif., San

Joaquin River below............. 247

Kern River below Isabella dam site,

Calif........................... 203

near Bakersfield, Calif............. 208

near Democrat Springs, Calif.......206-207

near Kernville, Calif..............198-199

South Fork, at Isabella, Calif...... 202

near Onyx, Calif.................. 201

Kern River basin, Calif., gagingstation records in.............197-208

Kern River No. 1 conduit near Democrat

Springs, Calif.................204-205

Kern River No. 3 Canal near Kernville.

Calif........................... 197

Kernville, Calif., Kern River near...198-199 

Kern River No. 3 Canal near......... 197

Keswick, Calif., Sacramento River at.. 349

Kings County, Calif., Tulare Lake in.. 209

Kings River above North Fork, Calif... 229

at Piedra, Calif.................... 231

North Fork, near Cliff Camp, Calif.. 230 

South Fork, near Cedar Grove, Calif. 228 

Kirkwood, Calif., Silver Lake Outlet

near............................ 424

Twin Lakes Outlet near.............. 425

Klamath Falls, Oreg., "A" Canal at.... 471

Keno Canal at....................... 472

Link River at....................... 474

Upper Klamath Lake near............. 473

Klamath River at Keno, Oreg........... 477

at Somesbar, Calif.................. 485

below Fall Creek, near Copco, Calif. 479 

diversion from, to Lost River .near

Olene, Oreg..................... 476

Klamath River basin, Calif.-Oreg.,

gaging-station records in......468-489

smaller reservoirs in. 

Knights Ferry, Calif., Oakdale Canal 

near............................

South San Joaquin Canal near........

Knights Landing, Calif., Sacramento

River at........................

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

Kyburz, Calif., El Dorado Canal near.. 

South Fork American River near......

La Brea Creek, Calif., discharge

measurements of.................

near Slsquoc, Calif.................

La Grange, Calif., Don Pedro Reservoir 

near............................

Modesto Canal near..................

Tuolumne River near.................

Turlock Canal near..................

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

discharge measurements of...........

Laguna de Santa Rosa near Graton,

Calif...........................

Lake Almanor near Prattville, Calif...

489

301

300

369

260

426

427

493

160

286

288

287

289

150

492

456

377

Lake Eleanor near Hetch Hetchy, Calif.. 281

Lake Henshaw, Calif., monthly contents

of............................... 35

Lake Hodges, Calif., monthly contents

of............................... 34

San Dieguito River at................ 34

Lake McClure at Exchequer, Calif....... 271

Lake Pillsbury at Hullville, Calif..... 458

Lakeport, Calif., Clear Lake at........ 439

Lakeview, Oreg., Cottonwood Creek near. 336 

Drew Creek near...................... 335

Lancha Plana, Calif., Mokelumne River

at...... ......................... 323

Lewiston, Calif., Trinity River at..... 486

Likely, Calif., South Fork Pit River

near............................. 338

Lilyglen, Oreg., Beaver Creek near..... 480

Link River at Klamath Falls, Oreg...... 474

Little Dalton Creek near Glendora,

Calif............................ 95

Little Dry Creek near Friant, Calif.... 255

Little San Gorgonio Creek near Beaumont , Calif...................... 55

Little Santa Anita Creek near Sierra

Madre, Calif..................... 115

Little Tujunga Creek near San Fernando,

Calif............................ 109

Lockeford, Calif., Bear Creek near..... 314

Lompoc, Calif., Salslpuedes Creek near. 152 

Santa Ynez River near............'.. .153,154

Lone Pine Creek near Keenbrook, Calif.. 65

Long Barn, Calif., South Fork Stanislaus River near.................. 297

Tuolumne Canal near.................. 296

Long Beach, Calif., Los Angeles River

at............................... 120

Los Alamitos, Calif., San Gabriel River

near............................. 97

Los Angeles River at Long Beach, Calif. 120 

at Los Angeles, Calif................ 110

at Sepulveda Dam, Calif.............. 102

near Downey, Calif................... 112

Los Angeles River basin, Calif., gagingstation records in.............. 102-120

Los Banos, Calif., Salt Slough near.... 263 

San Luis Creek near.................. 265

Los Capitancillos Creek at Guadalupe,

Calif............................ 189

Los Gatos Creek (Guadalupe River basin)

below Los Gatos, Calif........... 190

Los Gatos Creek (Tulare Lake basin)

above Nunez Canyon, near Coalinga, 

Calif............................ 232

Los Molinos, Calif., Mill Creek near... 358

Lost Creek near Clipper Mills, Calif... 373

Lost River, Oreg., discharge measurement of.......................... 495

Lost River diversion canal near Olene,

Oreg............................. 475

Lotus, Calif., South Fork .American

River near....................... 434

Loveland Reservoir, Calif., monthly

contents of...................... 22

Lower Lake, Calif., Cache Creek near... 440 

North Fork Cache Creek near..........4, 441

Lytle Creek, east channel of, at San

Bernardino, Calif................ 66

near Fontana, Calif.................. 62-63

MhCIJLoud River above Shasta Lake, Calif. 347 

near McCloud, Calif.................. 346

McConnell, Calif., Cosumnes River at... 334 

Mad River, Calif., discharge measurements of..... ................... 495

near Arcata, Calif................... 467

Madera Canal near Friant, Calif........ 251

Madrone, Calif., Coyote Creek near..... 193

Malibu Creek at Crater Camp, near

Calabasas, Calif................. 123

Marysville, Calif., Yuba River at...... 405

Matilija Creek above reservoir, near

MatiliJa, Calif1 .................. 131

at Matilija, Calif................... 133

discharge measurements of............ 492

North Fork, at Matilija, Calif....... 134

Matilija Reservoir at Matilija, Calif.. 132
INDEX 501

Page

Medley Lakes Outlet near Vade, Calif... 423 

Melones powerhouse, Calif., Stanislaus

River below...................... 299

Melones Reservoir at Melones Dam, Calif. 298 

Mendota, Calif., San Joaquin River

near............................. 257

Mentone, Calif., Mill Creek near....... 52

Santa Ana River near................. 48-49 Oakdale Canal near Knights Ferry, Calif. 301

Merced River at Bagby, Calif........... 270

at Exchequer, Calif.................. 272

at Happy Isles Bridge, near Yosemite,

Calif............................ 266

at Pohono Bridge, near Yosemite,

Calif............................ 268

discharge measurements of............ 493

near Stevinson, Calif................ 273

South Fork, near El Portal, Calif.... 269

Merced River Slough near Newman, Calif. 274

Mesa Grande, Calif., San Luis River at. 35

Santa Ysabel Creek near.............. 28

Michigan Bar, Calif., Cosumnes River at 333 

Middle Tuolumne River at Oakland Recreation Camp, Calif................ 284

Middle Yuba River above Oregon Creek,

Calif............................ 392

at Milton Calif..................... 391

Mill Creek (Sacramento River basin)

near Los Molinos, Calif.......... 358

Mill Creek (Santa Ana River basin) near

Craftonville, Calif.............. 50-51

near Mentone, Calif.................. 52

Millerton Lake at Friant, Calif........ 250

Millville, Calif., Cow Creek near...... 352

Milton, Calif., Middle Yuba River at... 391 

Milton-Bowman tunnel at outlet, Calif.. 390 

Miranda, Calif., South Fork Eel River 

near............................

Mission Creek near Montebello, Calif... 118 

Modesto, Calif., Tuolumne River at..... 290

Modesto Canal near La Grange, Calif.... 288

Mokelumne Hill, Calif., Esperanza Creek

near............................. 308

Jesus Maria Creek near..............309-310

Mokelumne River near................. 321

Mokelumne Peak, Calif., Cold Creek near 318 

Mokelumne River at Lancha Plana, Calif.

at Woodbridge, Calif................. 326

Middle Fork, at West Point, Calif.... 320

near Clements, Calif................. 324

near Mokelumne Hill, Calif........... 322

North Fork, below Salt Springs Dam,

Calif............................ 31'

South Fork, near West Point, Calif... 321 

Mono Creek near Vermilion Valley,

Calif............................

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

Montebello, Calif., Mission Creek near. 118 

Rio Hondo near....................... 117

Montecito, Calif., Santa Ynez River

near............................. 140

Montgomery Creek, Calif., Pit River

near............................. 344

Morena Dam, Calif., Cottonwood Creek at 16 

Morgan Hill, Calif., Uvas Creek near... 17 

Mud Slough, Calif., discharge measurements of......................... 49.

Murrieta'Creek at Temecula, Calif...... 40

Nacimiento River near San Miguel, Calif. 171 

Napa River near St. Helena, Calif...... 448

Napa River basin, Calif., gagingstation records in..............448-449

Narrows Dam, Calif., Yuba River at..... 

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

Newman, Calif., Merced River Slough

near.............................

Orestimoa Creek near.................

San Joaquin River near...............

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

Niles, Calif., Alameda Creek near. 

Nojoqui Creek, Calif., discharge

measurements of..................

North Fork, Calif., Kings River above., 

North Fork Dam, Calif., North Fork

American River at................

Morth Main Canal, Calif., discharge

measurement of...................

401

20

274

276

49: 

229

493

Page 

North San Juan, Calif., Oregon Creek

near............................. 393

North Yuba River below Bullards Bar

Dam, Calif....................... 395

below Goodyears Bar, Calif........... 394

Novato Creek near Novato, Calif........ 451

Oakland Recreation Camp, Calif., Middle 

Tuolumne River at................

South Fork Tuolumne River near.......

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

Olene, Oreg., diversion from Klamath

River to Los River near..........

Lost River diversion canal near......

O'Nelll ditch near Ysidora, Calif......

Onyx, Calif., South Fork Kern River

near.

Orange Cove, Calif., Sand Creek near... 

Order, new downstream, of listing gaging284

283

38

476

475

43

201

227

stations.

Oregon Creek, Calif., Middle Yuba River"

above............................ 392

near North San Juan, Calif........... 393

Orestimba Creek near Newman, Calif..'... 276 

Oroville, Calif., Feather River near... 388

Pacheco Creek, Calif., discharge

measurements of.................. 493

near Dunneville, Calif............... 176

Pacific Gas & Electric Co. conduit near

Springvllle, Calif............... 211

Pacific Gas & Electric Co. conduit

No. 3 near Crane Valley Reservoir,

Calif............................ 245

Pacoima Creek near San Fernando, Calif. 103 

Pajaro River near Chittenden, Calif.... 183

Pajaro River basin, Calif., gaging-'

station records in..............176-183

Pala, Calif., San Luis Rey River near.. 36,37 

Palermo Canal at Enterprise, Calif..... 374

Panoche Creek below Silver Creek, near

Panoche, Calif................... 258

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

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

Eaton Creek near....................

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

Thomes Creek at.

Paso Robles, Calif., Salinas River at., 

Paynes Creek near Red Bluff, Calif. 

Pescadero Creek near Pescadero, Calif., 

Petaluma Creek near Petaluma, Calif..., 

Philadelphia Canal near Strawberry,

Calif.

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

319

111

116

359

361

170

355

185

450

295

97

Piedra, Calif., Kings River at......... 231

Pilot Creek near Georgetown, Calif..... 419

Piru, Calif., Hopper Creek near........ 126

Piru Creek near...................... 125

Piru Creek near Piru, Calif............ 125

Pit River at Big Bend, Calif........... 343

at Fall River Mills, Calif........... 340

below Pit No. 4 Dam, Calif........... 342

near Canby, Calif.................... 339

near Montgomery Creek, Calif......... 344

South Fork, near Likely, Calif....... 338

Pitman Creek below Tamarack Creek,

Calif.

Placerville, Calif., Silver Creek near. 

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

Plunge Creek near East Highlands, Calif. 

Plymouth, Calif., Cosumnes River near.. 

Pollack Pines, Calif., Sly Park Creek

near.............................

Porterville, Calif., Tule River near... 

Fortola, Calif., Grizzly Creek near....

Potter Valley, Calif., Eel River near.. 

Potter Valley powerhouse tailrace .

near.............................

Potter Valley powerhouse tailrace near

Potter Valley, Calif............. 460

Potwisha Camp, Marble Fork Kaweah River

at. ....................220-222, 223-224

Middle Fork Kaweah River

near...................215-217, 218-219

Pozo, Calif., Salinas Reservoir near... 167 

Salinas River near................... 165

242 

431 

172 

53-54 

332

330

213

370

461

460

256498 O - 53 - 33
502 INDEX

Page 

Pozo, Calif., Toro Creek near.......... 166

Prado Dam, Calif., Santa Ana River

below............................ 81,82

Prattville, Calif., Butt Creek near...379,380 

Lake Almanor near.................... 377

North Fork Feather River near........ 378

Publications on stream flow by Geological Survey....................... 8-11

by State agencies. ................'... 11

Putah Creek near Davis, Calif.......... 447

near Quenoc, Calif................... 445

near Winters, Calif.................. 446

Ramona, Calif., Santa Maria Creek near. 33 

Santa Ysabel Creek near.............. 29

Rattlesnake Bridge, Calif., North Fork

American River at................ 421

Red Bluff, Calif., Antelope Creek near. 357 

Paynes Creek near.................... 355

Sacramento River near................ 356

Redding, Calif., Shasta Lake near...... 348

Redlands, Calif., San Timoteo Creek

near............................. 56

Redwood Creek, Calif., discharge

measuremeits of.................. 495

Rio Hondo near Downey, Calif........... 119

near Montebello, Calif............... 117

Ripon, Calif., Stanislaus River at..... 302

Riverside Sewage Treatment Plant, Calif.,

diversion from................... 491

Rogers Creek near Azusa, Calif......... 90

Rubicon River near Georgetown, Calif... 416 

Runoff in indies, definition of........ 2

Russian River at Guerneville, Calif.... 457

East Fork, near Calpella, Calif...... 452

near Healdsburg, Calif............... 454

near Hopland, Calif. .................. 453

Russian River basin, Calif., gagingstation records in..............452-457

Sacramento, Calif., American River at.. 437

Sacramento River at Butte City, Calif.. 365

at Colusa, Calif..................... 366

at Delta, Calif......................4, 337

at Keswick, Calif.................... 349

at Knights Landing, Calif............ 369

at Verona, Calif..................... 414

below Wilkins Slough, Calif.......... 368

near Red Bluff, Calif.............;.. 356

Sacramento River basin, Calif., gagingstation records in..............337-447

St. Helena, Calif., Conn Creek near.... 449

Napa River near...................... 448

Salinas Reservoir near Pozo, Calif..... 167

Salinas River above Pilitas Creek, near

Santa Margarita, Calif........... 168

at Paso Robles, Calif................ 170

near Bradley, Calif. ......'........... 173

near Pozo, Calif..................... 165

near Spreckels, Calif................ 175

Salinas River basin, Calif., gagingstation records in..............165-175

Salmon Falls, Calif., Webber Creek near 435 

Salmon River at Some.sbar, Calif........ 484

Salsipuedes Creek, Calif., 'discharge

measurements of.................. 493

near Lompoc, Calif............~...... 152

Salt Slough near Los Banos, Calif...... 263

Salt Springs Dam, Calif., North Fork

Mokelumne River below............ 317

Tiger Creek powerhouse conduit below. 316 

Salt Springs Reservoir near West Point,

Calif............................ 315

San Andreas, Calif., San Antonio Creek

near............................ 306-307

San Antonio Creek (San Joachin River 

basin) near San Andreas, 

Calif........................... 306-307

San Antonio Creek (Santa Ana River

basin) near Claremont, Calif..... 79-80

San Antonio Creek (tributary to Pacific

Ocean) at Harris, Calif.......... 155

San Antonio River at Pleyto, Calif..... 172

San Benito River below McCoy Creek,

near Hernandez, Calif...........178-179

discharge measurements of............ 493

Page

San Benito River near Hollister, Calif. 182 

near Willow Creek School, Calif...... 180

San Bernardino, Calif., Devil Canyon

Creek near....................... 61

Lytle Creek (east channel) at........ 66

Santa Ana River near................. 57

San Diego Creek near Irvine, Calif..... 46

San Diego River at El Capitan Dam,

Calif............................ 25

near Santee, Calif................... 27

San Diego River basin, Calif., gagingstation records in............... 24-27

San Dieguito conduit, Calif., discharge

measurement of................... 491

San Dieguito River at Lake Hodges,

Calif............................ 34

discharge measurements of............ 491

near San Pasqual, Calif.............. 33

San Dieguito River basin, Calif.,

gaging-station records in........ 28-34

San Dimas Creek near San Dlmas, Calif.. 93 

San Domingo Creek near San Andreas,

Calif...........................304-305

San Fernando, Calif., Little Tujunga

Creek near....................... 109

Pacoima Creek near................... 103

San Francisqulto Creek at Stanford

University, Calif................ 186

San Gabriel River at Pico, Calif....... 97

at Spring Street, near Los Alamitos,

Calif............................ 97

below Santa Fe Dam, near Baldwin Park,

Calif............................ 92

East Fork, near Camp Bonita, Calif... 87 

near Azusa, Calif.................... 89

West Fork, at Camp Rincon, Calif..... 88

San Gabriel River basin, Calif., gagingstation records in........... 87-120

San Jacinto River near Elsinore, Calif. 78 

near San Jacinto, Calif.............. 75-76

San Joaquin, Calif., James bypass near. 256 

San Joaquin River above Big Creek,

Calif............................ 238

at Fremont Ford Bridge, Calif........ 264

below Friant, Calif.................. 254

below Kerckhoff powerhouse, Calif,... 247 

near Dos Palos, Calif................ 259

near Mendota, Calif.................. 257

near Newman, Calif................... 275

near Vernalis, Calif................. 303

South Fork, near Florence Lake, Calif. 235 

San Joaquin River basin, Calif.,

gaging-station records in.......233-334

San Jose, Calif., Guadalupe River at... 191 

San Jose Creek (tributary to San

Gabriel River) near Whittier, 

Calif............................ 96

San Jose Creek (directly tributary to

Pacific Ocean) near Goleta, Calif. 139 

San Juan Capistrano, Calif., San Juan

Creek near....................... 44

Trabuco Creek near................... 45

San Juan Creek near San Juan Capistrano,

Calif............................ 44

San Juan Creek basin, Calif., gagingstation records in............... 44-45

San Juan Mutual Co.'s diversion, Calif.,

discharge measurements of........ 491

San Lorenzo Creek at Hayward, Calif.... 196

San Lorenzo River at Big Trees, Calif.. 184 

San Luis Creek near Los Banos, Calif... 265 

San Luis River at Lake Henshaw, near

Mesa Grande, Calif............... 35

at Monserate Narrows, near Pala,

Calif............................ 37

at Oceanside, Calif.................. 38

below Pala diversion dam, near Pala,-

Calif............................ 36

discharge measurements of............ 491

near Bonsall, Calif.................. 38

San Luis Rey River basin, Calif.,

gaging-station records in........ 35-38

San Miguel, Calif., Nacimiento River

near............................. 171

San Pasqual, Calif., Guejito Creek at.. 32 

Guejito Creek near................... 31
INDEX 503

Page 

San Pasqual, Calif., San Dieguito

River near....................... 33

Santa Ysabel Creek near.............. 30

San Simon, Calif., Arroyo de la Cruz

near............................. 164

San Timoteo Creek near Redlands, Calif. 56 

San Vicente Creek at San Vicente Dam,

at Foster, Calif................. 26

San Vicente Reservoir, Calif., monthly

contents of...................... 26

Sand Creek near Orange Cove, Calif..... 227

Santa Agueda Creek near Santa Ynez,

Calif. ........................... 148

Santa Ana, Calif., Santa Ana River at.. 86 

Santiago Creek at.................... 85

Santa Ana River at Auburndale Bridge,

near Corona, Calif............... 73

at county line, below Prado Dam,

Calif. ............................ 82

at E Street Bridge, near San Bernardino, Calif................... 57

at Haraner Avenue, near Corona, Calif. 72 

at Riverside Narrows, near Arlington,

Calif............................ 69

at Santa Ana, Calif.................. 86

below Prado Dam, Calif............... 81

discharge measurements of............ 492

near Mentone, Calif.................. 48-49

Santa Ana River basin, Calif., gagingstation records in............... 47-86

Santa Anita Creek near Sierra Madre,

Calif............................ 114

Santa Barbara, Calif., Santa Ynez River

near....................... 141, 142-143

Santa Clara River near Saugus, Calif... 124 

Santa Clara River basin, Calif., gagingstation records in.............. 124-130

Santa Cota Creek, Calif., discharge

measurements of.................. 492

Santa Cruz Creek above Stake Canyon,

near Santa Ynez, Calif........... 145

near Santa Ynez, Calif............... 146

Santa Margarita, Calif., Salinas River

near............................. 168

Santa Margarita River at Ysidora, Calif. 43 

near Fall Brook, Calif............... 42

Santa Margarita River basin, Calif.,

gaging-station records in........ 39-43

Santa Maria, Calif., Alamo Creek near.. 157 

Cuyama River near.................... 156

Huasna River near.................... 151

Santa Maria Creek near Ramona, Calif... 33

Santa Maria River at Guadalupe, Calif.. 162

discharge measurements of............ 493

Santa Maria River basin, Calif., gagingstation records in..............155-162

Santa Paula Creek near Santa Paula,

Calif............................ 130

Santa Rosa Creek, Calif., discharge

measurements of.................. 492

Santa Ynez, Calif., Cachuraa Creek near. 147 

Santa Agueda Creek near.............. 148

Santa Cruz Creek near...............145,146

Santa Ynez River near................ 144

Santa Ynez River above Gibraltar Dam,

near Santa Barbara, Calif........ 141

at barrier, near Surf, Calif......... 154

at H Street, near Lompoc, Calif...... 154

at narrows, near Lompoc, Calif....... 153

at Solvang, Calif.................... 149

below Gibraltar Dam, near Santa

Barbara, Calif.................. 142-143

below Los Laureles Canyon, near Santa

Ynez, Calif...................... 144

discharge measurements of...........492,493

near Buellton, Calif................. 151

near Lompoc, Calif................... 153

near Monteelto, Calif................ 140

near Santa Ynez, Calif...'.......... .144,147

Santa Ynez River basin, Calif., gagingstation records in..............140-154

Santa Ysabel Creek near Mesa Grande,

Calif............................ 28

near Ramona, Calif................... 29

near San Pasqual, Calif.............. 30

Santee, Calif., San Diego River near... 27

Santiago Creek at Santa Ana, Calif..... 85

at Santiago Dam, near Villa Park,

Calif............................ 83

near Villa Park, Calif............... 84

Saratoga, Calif., Campbell Creek at.... 192

Saugus, Calif., Santa Clara River near. 124 

Sawpit Creek near Monrovia, Calif...... 113

Scotia, Calif., Eel River at........... 417

Scott and Sand Creek Canals, Oreg., discharge measurement of............ 495

Scott River near Fort Jones, Calif..... 483

Sepulveda Dam, Calif., Los Angeles

River at......................... 102

Sespe Creek near Fillmore, Calif....... 129

near Wheeler Springs, Calif.......... 127

Sevenmile Creek, Oreg., discharge

measurement of................... 495

Shakespeare Canal, Calif., discharge

measurement of................... 495

Shasta Lake near Redding, Calif........ 348

Shasta Lake, Calif., McCloud River

above............................ 347

Squaw Creek above.................... 345

Shasta River near Yreka, Calif......... 482

Shaver Lake near Big Creek, Calif...... 244

Sierra Madre, Calif., Little Santa

Anita Creek near................. 115

Santa Anita Creek near............... 114

Silver Creek at Union Valley, Calif.... 429

near Placerville, Calif.............. 431

South Fork, near Ice House, Calif.... 430

Silver Lake, Calif., seepage from...... 494

Silver Lake Outlet near Kirkwood, Calif. 424 

Sisquoc, Calif., La Brea Creek near.... 160

Sisquoc River near................... 159

Tepusquet Creek near................. 161

Sisquoc River near Garey, Calif........ 161

near Sisquoc, Calif.................. 159

Sloat, Calif., Middle Fork Feather

River below...................... 372

Sly Park Creek near Pollack Pines,

Calif............................ 330

Smartville, Calif., Deer Creek near.... 402

Smith River, Middle Fork, Calif., discharge measurement of............ 496

near Crescent City, Calif............ 490

South Fork, Calif., discharge measurement of.......................... 496

Soledad, Calif., Arroyo Seco near...... 174

Solvang, Calif., Santa Ynez River at... 149 

Somesbar, Calif., Klamath River at..... 485

Salmon River-at...................... 484

South Honcut Creek near Bangor, Calif.. 389 

South San Joaquin Canal, Calif., discharge measurements of........... 493

near Knights Ferry, Calif............ 300

South tunnel, Calif., discharge measurement of.......................... 493

South Yuba River near Cisco, Calif..... 396

near Washington, Calif............... 400

Spanish Creek at Keddie, Calif......... 382

Spencer Creek, Oreg., discharge measurement of.......................... 495

Sprague River, Calif., discharge

measurements of.................. 495

near Chiloquin, Oreg................. 468

Spreckels, Calif., Salinas River near.. 175 

Spring Creek, Oreg., discharg measurement of.......................... 495

Spring Valley ditch near Yankee Hill,

Calif............................ 386

Sprlngville, Calif., North Fork of

Middle Fork Tule River near...... 212

Pacific Gas & Electric Co. conduit

near............................. 211

Squaw Creek above Shasta Lake, Calif... 345 

Stage-discharge relation, definition of 2 

Stanislaus River at Ripon, Calif....... 302

below Melones powerhouse, Calif...... 299

Middle Fork, at Kennedy Meadows,

Calif............................ 291

at Sand Bar Flat, near Avery, Calif. 292 

North Fork, near Avery, Calif........ 293

South Fork, at Strawberry, Calif..... 294

near Long Barn, Calif.............. 297

Stevens Creek near Cupertino, Calif.... 187
504 INDEX

Stevinson, Calif., Merced River near.. 

Stockton diverting canal at Stockton,

Calif...........................

Stony Creek near Hamilton City, Calif.. 364 

Strawberry, Calif., Philadelphia Canal

near............................

South Pork Stanislaus River at....... 294

Strawberry Creek near Arrowhead Springs

Calif... ......................... 58

Success, Calif., South Pork Tule River

near...:......................,.. 214

Sunland, Calif., Tujunga Creek near...

Surf, Calif., Santa Ynez River near.... 154

Sweetwater Dam, Calif., Sweetwater

River at........................

Sweetwater Reservoir, Calif., monthly

contents of.....................

Sweetwater River at Loveland Dam, near

Alpine, Calif.................... 22

at Sweetwater Dam, Calif............. 23

Sweetwater River basin, Calif., gagingstation records in............... 22-23

Sycan River, Oreg., discharge measurement of.........................

Tamarack Creek, Calif., Pitman Creek

below............................ 242

Temecula, Calif., Murrieta Creek at.... 40

Temecula Creek near.................. 39,41

Temecula Creek at Nigger Canyon, near

Temecula, Calif, 

at Railroad Canyon, near Temecula, 

Calif............. ...............

discharge measurements of............

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

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

Ten mile River, Middle Fork, Calif.,

discharge measurements of........

North Pork, Calif., discharge

measurements of..................

South Pork, Calif., discharge 

measurements of.

39

41

491

78

494

494 Ward tunnel at intake, Calif.

at outlet, Calif. 

494

Tenaya Creek near Yosemite, Calif...... 267 Washington, Calif., South Yuba River

Tepusquet Creek near Sisquoc, Calif.... 161

Terms, difinition of, and abbreviations 

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

Three Rivers, Calif., Kaweah River near 

Tia Juana River, Calif., discharge

measurements of..................

near Dulzura, Calif..................

near Nestor, Calif...................

Tia Juana River basin, Calif., gagingstation records in............... 16-20

Tiger Creek powerhouse conduit below

Salt Springs Dam, Calif..........

Tilley Creek, Calif., Borel Canal at... 

Topanga Creek near Topanga Beach, Calif

361

226

491

20

20

316

near.

Wilkins Slough, Calif., Sacramento

River below.

45

493 

181 

486 

496 Willow Creek, North Pork, below Crane

Valley Reservoir, Calif.......... 246

Willow Creek School, Calif., San Benito

River near....................... 180

Williamson River below Sprague River

near Chiloquin, Oreg............. 469

discharge measurement of............. 495

496

108

109

Winters, Calif., Putah Creek

Wood River, Oreg., discharge measureToro Creek near Pozo, Calif............ 166 Whittier, Calif., San Jose Creek

Trabuco Creek near San Juan Capistrano, 

Calif............................

Tres Pinos Creek, Calif., discharge

measurements of..................

near Tres Pinos, Calif...............

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

Hay Perk, Calif ..discharge measurements of 

near Douglas City, Calif............. 487

near Hoopa, Calif...................

South Pork, Calif., discharge

measurements of.................

Tujunga, Calif., Haines Creek near...

Tujunga Creek below Hansen Dam, Calif.

below Mill Creek, near Colby Ranch,

Calif...........................104-106

near Sunland, Calif.................. 107

Tulare Lake in Kings County, Calif..... 209

Tulare Lake basin, Calif., gagingstation records in..............209-232

Tule River near Porterville, Calif..... 213

North Pork of Middle Pork, near

Springville, Calif............... 212

South Pork, near Success, Calif...... 214

Tuolumne Canal near Long Barn, Calif... 296 

Tuolumne River above La Orange Dax,

near La Grange, Calif............ 287

at Modesto, Calif.................. . 290

near Hetch Hetchy, Calif............. 279

Tuolumne River, South Pork, near

Oakland Recreation Camp, Calif... 

Turlock Canal near La Grange, Calif.... 

Twin Lakes Outlet near Kirkwood, Calif.

Union Valley, Calif., Silver Creek at.. 

Upland, Calif., Cucamonga Creek near... 

Upper Klamath Lake near Klamath Palls,

Page

283

289

425

429

74

Oreg.

Utica Canal, Calif., discharge measurement of.

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

Vade, Calif., Echo Lake conduit near...

493

177

422 

Medley Lakes Outlet near............. 42C

Valley Springs, Calif., Cosgrove Creek

near............................. 311

Van Duzen River at Bridgeville, Calif.. 465 

discharge measurements of............ 494

near Bridgeville, Calif.............. 466

South Pork, Calif., discharge

measurements of.................. 494

Ventucopa, Calif., Cuyama River near.... 155

Ventura, Calif., Coyote Creek near..... 135

Ventura River near................... 136

Ventura River near Ventura, Calif...... 136

Ventura River basin, Calif., gagingstation records in..............131-136

Vermilion Valley, Calif., Bear Creek 

near.

Mono Creek near.

Vernalis, Calif., San Joaquin River

236

237

303

Verona, Calif., Sacramento River at..'.. 414

Villa Park, Calif., Santiago Creek

near............................. 83,84

Vina, Calif., Deer Creek near. ......... 362

Virginia Ranch, Calif., Dry Creek at... 404

234

239

Warm Creek near Colton, Calif.......... 67-6

Waterman Canyon Creek near Arrowhead

Springs, Calif.

Webber Creek near Salmon Falls, Calif.,

400

59

435

West Point, Calif., Middle Pork

Mokelumne River at............... 320

Salt Springs Reservoir near.......... 315

South Pork Mokelumne River near...... 321

Wheatland, Calif., Bear River near..... 409

Dry Creek near......................410-412

Wheeler Springs, Calif., Sespe Creek 

near

200 White River near Ducor, Calif. 

122 Whitehall, Calif., Alder Creek near...,

127

210

428

96

368

446

ments of 495

Woodbridge, Calif., Mokelumne River

at............................... 326

Woodbridge Canal at.................. 325

Woodbridge Canal at Woodbridge,

Calif............................ 325

Woodland, Calif., Yolo bypass near..... 444

Woods Creek near Jacksonville, Calif... 285

Work, division of.

scope of.

Yankee Hill, Calif., Concow Creek

near............................. 385

Spring Valley ditch near............. 386

West Branch Feather River near....... 387
INDEX 505

Page

443

444

101 

Yosemite, Calif., Merced River near...266,268

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

Yolo bypass near Woodland, Calif.. 

Yorba Linda, Calif., Carbon Creek 

near.

Tenaya Creek near. 267

Ysidora, Calif., O'Neill ditch

Page

43 

43 

482 

Yuba River at Marysville, Calif........ 405

near. 

Santa Margarita River at.

Yreka, Calif., Shasta River near.

at Narrows Dam, Calif. 401

U. S. GOVERNMENT PRINTING OFFICE : O 1953