UNITED STATES DEPARTMENT OF THE INTERIOR

HAROLD L. ICKES, Secretary

GEOLOGICAL SURVEY 

W. E. WRATHER, Director

Water-Supply Paper 961

SURFACE WATER SUPPLY 

of the UNITED STATES

1942

^ PART 11

&LQPE BASINS IN CALIFORNIA

^% *,

the direction, of 

GLENN L. PARl&^R, Chief Hydraulic Engineer

AND OF H. D. McGLASHAN AND &H. CAN^IELD, District Engineers

'"7 lix ''Yr ' ''.

,

In cooperation with" the4foates

CALIFORNIA AND ORE 

and other agencies

* \ ,

UNITED STATES

GOVERNMENT PRINTING OFFICE 

WASHINGTON : 1943

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

Price 45 cents (paper cover)
CONTENTS

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

Definition of terms.................................................................. 1

Explanation of data.................................................................. 1

Time Basis........................................................................... 3

Division of work..................................................................... 12

Gaging-statlon records............................................................... 13

Tla Juana River Basin.............................................................. 13

Cottonwood Creek at Morena Dam, Calif............................................ 13

Cottonwood Creek near Dulzura, Calif............................................. 13

Cottonwood Creek above Tecate Creek, near Dulzura, Calif......................... 14

Tla Juana River near Dulzura, Calif.............................................. 15

Tla Juana River near Nestor, Calif............................................... 16

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

Campo Creek near Campo, Calif.................................................... 18

Otay River Basin................................................................... 19

Jamul Creek near Jamul, Calif.................................................... 19

Otay River at Savage Dam, Calif.................................................. 20

Sweetwater River Basin............................................................. 20

Sweetwater River at Sweetwater Dam, Calif........................................ 20

San Diego River Basin.............................................................. 21

San Diego River at El Capltan Dam, Calif.......................................... 21

San Diego River near Santee, Calif............................................... 21

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif.......................... 22

San Vlcente Creek near Foster, Calif............................................. 23

San Diegulto River Basin........................................................... 24

Santa Ysabel Creek near Mesa Grande, Calif....................................... 24

San Diegulto River at Lake Hodges, Calif......................................... 25

San Luls Rey River Basin........................................................... 25

San Luis Rey River at Lake Henshaw, near Ifcsa Grande, Calif...................... 25

San Luis Rey River near Bonsall, Calif........................................... 26

San Luls Rey River at Oceanslde, Calif........................................... 27

Santa MargarIta River Basin........................................................ 28

Temecula Creek at Nigger Canyon, near Temecula, Calif............................ 28

Temecula Creek at Railroad Canyon, near Temecula, Calif.......................... 29

Santa Margarita River near Fall Brook, Calif..................................... 30

Santa Ilargarita River at Ysldora, Calif.......................................... 31

Morrieta Creek at Temecula, Calif................................................ 32

O'Nelll ditch near Ysidora, Calif................................................ 33

San Juan Creek Bas in............................................................... 34

San Juan Creek near San Juan Capistrano, Calif................................... 34

Trabuco Creek near San Juan Capistrano, Calif.................................... 35

Allso Creek Basin.................................................................. 36

Allso Creek at El Toro, Calif.................................................... 36

Santa Ana River Basin.............................................................. 37

Santa Ana River near Ilentone, Calif.............................................. 37

Santa Ana River at E Street Bridge, near San Bernardino, Calif................... 39

Santa Ana River at Riverside Harrows, near Arlington, Calif...................... 40

Santa Ana River at Manner Avenue, near Corona, Calif............................. 41

Santa Ana River at Auburndale Bridge, near Corona, Calif......................... 42

Santa Ana River below Prado Dam, near Prado, Calif............................... 43

Santa Ana River near Prado, Calif................................................ 44

Santa Ana River at Santa Ana, Calif.............................................. 45

Southern California Edison Co.'s canal and Greenspot pipe line near Mentone,CaUf- 46

Mill Creek near Mentone, Calif................................................... 48

Nlll Creek power canals 2 and 3 near Craftonvllle, Calif......................... 49

Mill Creek power canal 1 near Craftonville, Calif................................ 50

Plunge Creek near East Hipjilands, Calif.......................................... 51

San Timoteo Creek near Rcdlands, Calif........................................... 52

Warm Creek near Colton, Calif.................................................... 53

Strawberry Creek near Arrowhead Springs, Calif................................... 55

Waterman Canyon Creek near Arrowhead Springs, Calif.............................. 56

City Creek near Highland, Calif.................................................. 57

City Creek Water Co.'s canal near Highland, Calif................................ 59

Devil Canyon Creek near San Bernardino, Calif.................................... 60

Lytle Creek near Fontana, Calif.................................................. 61

Lytle Creek (east channel) at San Bernardino, Calif.............................. 63

Lytle Creek (west channel) at Colton, Calif...................................... 64

Cajon Creek near Keenbrook, Calif................................................ 65

Keeks & Daley Canal near Colton, Calif........................................... 66

Day Creek near Etlwanda, Calif................................................... 67

Cucamonga Creek near Upland, Calif............................................... 68

San Jacinto River near San Jaclnto, Calif........................................ 69

Santa Jacinto River near Elslnore, Calif......................................... 70

Elsinore Lake at Elslnore, Calif................................................. 71

III
IV

CONTENTS

Gaglng-statlon records Continued.

Santa Ana River Basin Continued. Page

Temescal creek near Corona, Calif.................................................. 72

San Antonio Creek near Claremont, Calif............................................ 73

Southern California Edison Co.'s conduit near Claremont, Calif..................... 75

Santiago Creek near Villa Park, Calif.............................................. 76

Santiago Creek at Santa Ana, Calif................................................. 77

San Gabriel River Basin.............................................................. 78

East Fork of San Gabriel River near Camp Bonlta, Calif............................. 78

San Gabriel River near Azusa, Calif................................................ 79

San Gabriel River at Pico, Calif................................................... 80

San Gabriel River at Spring Street, near Los Alamltos, Calif....................... SI

West Fork of San Gabriel River at Camp Rincon, Calif............................... 82

Rogers Creek near Azusa, Calif..................................................... 83

Fish Creek near Duarte, Calif...................................................... 84

Sawpit Creek near Monrovia, Calif.................................................. 85

San Dlmas Creek near San Dlmas, Calif.............................................. 86

Dalton Creek near Glendora, Calif.................................................. 87

Little Dalton Creek near Glendora, Calif........................................... 88

San Jose Creek near Whittier, Calif................................................ 89

Coyote Creek near Artesla, Calif................................................... 90

Brea Creek at Fullerton, Calif..................................................... 91

Fullerton Creek at Fullerton, Calif................................................ 92

Los Angeles River Basin.............................................................. 93

Los Angeles River below Sepulveda Dam, Calif....................................... 93

Los Angeles River at Los Angeles, Calif............................................ 94

Los Angeles River near Downey, Calif............................................... 95

Los Angeles River at Long Beach, Calif............................................. 95

Pacoima Creek near San Fernando, Calif............................................. 97

Tujunga Creek near Colby Ranch, Calif.............................................. 98

Tujunga Creek near Sunland, Calif.................................................. 99

Tujunga Creek below Hansen Dam, Calif.............................................. 100

Little Tujunga Creek near San Fernando, Calif...................................... 101

Haines Creek near Tujunga, Calif................................................... 102

Arroyo Seco near Pasadena, Calif................................................... 103

Santa Anita Creek near Sierra Madre, Calif......................................... 104

Little Santa Anita Creek near Sierra Hadre, Calif.................................. 105

Eaton Creek near Pasadena, Calif................................................... 106

Rio Hondo near Ifontebello, Calif................................................... 107

Rio Hondo near Downey, Calif....................................................... 108

Rio Hondo Slough near Ifontebello, Calif............................................ 109

Ballona Creek Basin.................................................................. 110

Ballona Creek near Culver City, Calif.............................................. 110

Topanga Creek Basin.................................................................. Ill

Topanga Creek near Topanga Beach, Calif............................................ Ill

Malibu Creek Basin................................................................... 112

Malibu Creek at Crater Camp, near Calabasas, Calif................................. 112

Santa Clara River Basin.............................................................. 113

Santa Clara River near Saugus, Calif............................................... 113

Piru Creek near Plru, Calif........................................................ 114

Hopper Creek near Piru, Calif...................................................... 115

Sespe Creek near Fillmore, Calif................................................... 116

Fillmore Irrigation Co.'s canal near Fillmore, Calif............................... 117

Santa Paula Creek near Santa Paula, Calif.......................................... 118

Ventura River Basin.................................................................. 119

Matilija Creek at Matilija, Calif.................................................. 119

Ventura River near Ventura, Calif.................................................. 120

North Fork of Matilija Creek at Matilija, Calif.................................... 121

Coyote Creek near Ventura, Calif................................................... 122

Carpinteria Creek Basin.............................................................. 123

Carpinteria Creek near Carpinteria, Calif.......................................... 123

Alascadero Creek Basin............................................................... 124

Alascadero Creek near Goleta, Calif................................................ 124

San Jose Creek Basin........................ f ........................................ 125

San Jose Creek near Goleta, Calif.................................................. 125

Santa Ynez River Basin............................................................... 126

Santa Ynez River at Jameson Lake, near Montecito, Calif............................ 126

Santa Ynez River near Santa Barbara, Calif......................................... 127

Santa Ynez River below Gibraltar Dam, near Santa Barbara, Calif.................... 128

Santa Ynez River near Santa Ynez, Calif............................................ 129

Santa Ynez River near Lompoc, Calif................................................ 130

Santa Ynez River at Pine Canyon, near Lompoc, Calif................................ 131

Santa Cruz Creek near Santa Ynez, Calif............................................ 132

Santa Agueda Creek near Santa Ynez, Calif.......................................... 133

La Zaca Creek at Buellton, Calif................................................... 134

Salsipuedes Creek near Lompoc, Calif............................................... 135

San Antonio Creek Basin.............................................................. 136

San Antonio Creek at Harris, Calif................................................. 136

San Maria River Basin................................................................ 137

Cuyama River near Santa Maria, Calif............................................... 137

Santa Maria River at Guadalupe, Calif.............................................. 138

Huasna River near Santa Maria, Calif............................................... 139

Sisquoc River near Gary, Calif..................................................... 140

Arroyo Grande Basin.................................................................. 141

Arroyo Grande at Arroyo Grande, Calif.............................................. 141

Salinas River Basin.................................................................. 142

Salinas River near Pozo, Calif..................................................... 142

Salinas Reservoir near Pozo, Calif................................................. 143

Salinas River above Pllitas Creek near Santa Margarita, Calif...................... 144
CONTENTS y

Gaglng-station records Continued.

Sallnas River Basin Continued. Page

Salinas River near Santa Margarita, Calif....................................... 145

Salinas River at Paso Robles, Calif............................................. 146

Salinas River near Spreckels, Calif............................................. 147

Nacimiento River near San Mlguel, Calif......................................... 148

San Antonio River at Pleyto, Calif.............................................. 149

San Lorenzo Creek near King City, Calif......................................... 150

Arroyo Seco near Soledad, Calif................................................. 151

Pajaro River Basin................................................................ 152

Pajaro River near Chittenden, Calif............................................. 152

Pacheco Creek near Dunneville, Calif............................................ 153

Uvas Creek near Morgan Hill, Calif.............................................. 154

Tres Pinos Creek near '-.res Pinos, Calif......................................... 155

San Benito River near Willow Creek School, Calif................................ 156

San Lorenzo River Basin........................................................... 157

San Lorenzo River at Big Trees, Calif........................................... 157

Branclforte Creek at Santa Cruz, Calif.......................................... 158

Stevens Creek Basin............................................................... 159

Stevens Creek near Cupertino, Calif............................................. 159

Guadalupe Creek Basin............................................................. 160

Guadalupe Creek at Gfuadalupe, Calif............................................. 160

Guadalupe Creek at San Jose, Calif.............................................. 161

Alamitos Creek near Edenvale, Calif............................................. 162

Los Gatos Creek at Los Gatos, Calif............................................. 163

Campbell Creek at Saratoga, Calif............................................... 164

Coyote Creek Basin................................................................ 165

Coyote Creek near Madrone, Calif................................................ 165

Coyote Creek near Edenvale, Calif............................................... 166

Alameda Creek Basin............................................................... 167

Alameda Creek near Niles, Calif................................................. 167

Kern River Basin.................................................................. 168

Kern River near Kernville, Calif................................................ 168

Kern River near Bakersfield, Calif.............................................. 170

Kern River No. 3 Canal near Kernville, Calif.................................... 171

Borel Canal at Tilley Creek, Calif.............................................. 172

South Fork of Kern River near Onyx, Calif....................................... 173

South Fork of Kern River at Isabella, Calif..................................... 174

Tulare Lake Basin................................................................. 175

Tulare Lake in Kings County, Calif.............................................. 175

North Fork of Middle Fork of Tule River near Springville, Calif................. 176

Tule River near Porterville, Calif.............................................. 177

Pacific Gas and Electric Co. conduit near Sprlngville, Calif.................... 178

South Fork of Tule River near Success, Calif.................................... 179

Kaweah River near Three Rivers, Calif........................................... 180

North Fork of Kaweah River at Kaweah, Calif..................................... 181

Kings River above North Fork, Calif............................................. 182

Kings River at Piedra, Calif.................................................... 183

North Fork of Kings River near Cliff Camp, Calif................................ 184

North Fork of Kings River below Rancheria Creek, Calif.......................... 185

San Joaquln River Basin........................................................... 186

San Joaquin River main stem..................................................... 186

San Joaquin River above Big Creek, Calif...................................... 186

San Joaquin River below Friant, Calif......................................... 187

San Joaquin River near Newman, Calif.......................................... 188

San Joaquin River near Vernalis, Calif........................................ 189

San Joaquin River tributaries above Fresno River................................ 190

Florence Lake near Big Creek, Calif........................................... 190

South Fork of San Joaquin River near Florence Lake, Calif..................... 191

Ward tunnel at intake, Calif.................................................. 192

Ward tunnel at outlet, Calif.................................................. 193

Bear Creek near Vermilion Valley, Calif....................................... 194

Mono Creek near Vermilion Valley, Calif....................................... 195

Huntington Lake near Big Creek, Calif......................................... 196

Big Creek below Huntington Lake, Calif........................................ 197

Pitman Creek below Tamarack Creek, Calif...................................... 198

Shaver Lake near Big Creek, Calif............................................. 199

Huntington-Shaver conduit at outlet, Calif.................................... 200

Willow Creek below Crane Valley Reservoir, Calif.............................. 201

Pacific Gas & Electric Co. conduit No. 3 near Crane Valley Reservoir, Calif... *202

Fine Gold Creek near Friant, Calif............................................ 203

Fresno River Basin.............................................................. 204

Fresno River near Knowles, Calif.............................................. 204

Chowchilla River Basin.......................................................... 205

Chowchilla River at Buchanan dam site, Calif.................................. 205

Merced River Bas in.............................................................. 206

Merced River at Happy Isles Bridge, near YoSemite, Calif...................... 206

Merced River at Pohono Bridge, near Yosemite, Calif........................... 207

Merced River at Klttridge, Calif.............................................. 208

Lake McClure at Exchequer, Calif.............................................. 209

Merced River at Exchequer, Calif.............................................. 210

Merced River near Livingston, Calif........................................... 211

Tenaya Creek near Yosemite, Calif............................................. 212

Orestimba Creek Basin........................................................... 213

Orestimba Creek near Neman, Calif............................................ 213

Tuolumne River Basin............................................................ 214

Hetch Hetchy Reservoir at Hetch Hetchy, Calif................................. 214

Tuolumne River near Hetch Hetchy, CalW....................................... 215

Den Pedro Reservoir near La Grange, Calif..................................... 216
VI CONTENTS

Gaging-station records Continued. 

San Joaquin River Basin Continued.

Tuolumne River Basin Continued. Page

Tuolumne River above La Grange Dam, near La Grange, Calif..................... 217

Tuolumne River at Tuolumne City, Calif........................................ 218

Falls Creek near Hetch Hetchy, Calif.......................................... 219

Cherry Creek near Hetch Hetchy, Calif......................................... 220

Lake Eleanor near Hetch Hetchy, Calif......................................... 221

Eleanor Creek near Hetch Hetchy, Calif........................................ 222

South Fork of Tuolumne River near Oakland Recreation Camp, Calif.............. 223

Middle Tuolumne River at Oakland Recreation Camp, Calif....................... 224

Woods Creek near Jacksonville, Calif.......................................... 225

Ilbdesto Canal near La Grange, Calif........................................... 226

Turlock Canal near La Grange, Calif........................................... 227

Stanislaus River Basin.......................................................... 228

Middle Fork of Stanislaus River at Kennedy Meadows, Calif..................... 228

Middle Fork of Stanislaus River at San Bar Flat, near Avery, Calif............ 229

Melones Reservoir at Melones Dam, CaL if....................................... 230

Stanislaus River below Melones powerhouse, Calif.............................. 231

Stanislaus River at Ripon, Calif.............................................. 232

North Fork of Stanislaus River near Avery, Calif.............................. 233

South Fork of Stanislaus River at Strawberry, Calif........................... 234

South Fork of Stanislaus River near Long Barn, Calif.......................... 235

Philadelphia Canal near Strawberry, Calif..................................... 236

Tuolumne Canal near Long Barn, Calif.......................................... 237

South San Joaquin Canal near Knights Ferry, Calif............................. 238

Oakdale Canal near Knights Ferry, Calif....................................... 239

Calaveras River Basin........................................................... 240

Calaveras River at Jenny Lind, Calif.......................................... 240

Cosgrove Creek near Valley Springs, Calif..................................... 241

Mokelumne River Basin........................................................... 242

Salt Springs Reservoir near West Point, Calif................................. 242

North Fork of Mokelumne River below Salt Springs Dam, Calif................... 243

Mokelumne River near Mokelumne Hill, Calif.................................... 244

Mokelumne River at Lancha Plana, Calif........................................ 245

Mokelimuie River near Clements, Calif.......................................... 246

Mokelumne River at Woodbridge, Calif.......................................... 247

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif.................. 248

Cold Creek near Mokelumne Peak, Calif......................................... 249

Bear River at Pardoe Camp, Calif.............................................. 250

Middle Fork of Mokelumne River at West Point, Calif........................... 251

South Fork of Mokelumne River near West Point, Calif. .................. , t ..... 252

Woodbridge Canal at Woodbridge, Calif......................................... 253

Cosumnes River at Michigan Bar, Calif......................................... 254

Goose Lake Basin.................................................................. 255

Drew Creek near Lakeview, Oreg.................................................. 255

Cottonwood Creek near Lakeview, Oreg............................................ 257

Sacramento River Basin............................................................ 258

Sacramento River main stem...................................................... 258

Sacramento River at Kennett, Calif............................................ 258

Sacramento River at Keswick, Calif............................................ 259

Sacramento River near Red Bluff, Calif........................................ 260

Sacramento River at Butte City, Calif......................................... 261

Sacramento River at Colusa, Calif............................................. 262

Sacrariento River below Wilkins Slough, Calif.................................. 263

Sacramento River at Knights Landing, Calif.................................... 264

Sacramento River at Verona, Calif............................................. 265

Pit River Basin................................................................. 266

PJt River near Canby, Calif................................................... 266

Pit River at Fall River Mills, Calif.......................................... 267

Pit River at Big Bend, Calif.................................................. 268

Pit River near Ydalpom, Calif................................................. 269

South Fork of Pit River near Likely, Calif.................................... 270

Hat Creek near Hat Creek, Calif............................................... 271

McCloud River near McCloud, Calif............................................. 272

McCloud River at Baird, Calif................................................. 273

Clear Creek Basin............................................................... 274

Clear Creek near Igo, Calif................................................... 274

Cottonwood Creek Basin........................................................... 275

Cottonwood Creek near Cottonwood, Calif....................................... 275

Battle Creek Basin.............................................................. 276

Battle Creek near Cottonwood, Calif........................................... 276

Antelope Creek Basin............................................................ 277

Antelope Creek near Red Bluff, Calif.......................................... 277

Mill Creek Basin................................................................ 278

Mill Creek near Los Molinos, Calif............................................ 278

Thomas Creek Basin.............................................................. 279

Thomas Creek at Paskenta, Calif............................................... 279

Deer Creek Basin................................................................ 280

Deer Creek near Vina, Calif................................................... 280

Chico Creek Basin............................................................... 281

Chico Creek near Chico, Calif................................................. 281

Stony Creek Basin............................................................... 282

Stony Creek near Hamilton City, Calif......................................... 282

Butte Creek Bas in............................................................... 283

Butte Creek near Chico, Calif................................................. 283

Feather River Basin............................................................. 284

Lake Almanor near Prattville, Calif........................................... 284

North Fork of Feather River near Prattville, Calif............................ 285
CONTENTS VII

Gaging-station records Continued. 

Sacramento River Basin Continued.

Feather River Basin Continued. Page

North Fork of Feather River at Big Bar, Calif.................................. 286

Feather River near Oroville, Calif............................................. 287

Feather River at Nicolaus, Calif............................................... 288

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif............. 289

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif............. 290

Indian Creek near Crescent Mills, Calif........................................ 291

Spanish Creek at Keddie, Calif................................................. 292

Bucks Creek Reservoir near Bucks Ranch, Calif.................................. 293

Grizzly Creek near Storrie, Calif.............................................. 294

West Branch of Feather River near Yankee Hill, Calif........................... 295

Concow Creek near Yankee Hill, Calif........................................... 296

Spring Valley ditch near Yankee Hill, Calif.................................... 297

Middle Fork of Feather River near Clio, Calif.................................. 298

Middle Fork of Feather River below Sloat, Calif................................ 299

Middle Fork of Feather River at Bidwell Bar, Calif............................. 300

South Fork of Feather River at Enterprise, Calif....A......................... 301

Palermo Canal at Enterprise, Calif............................................. 302

Middle Fork of Yuba River at Milton, Calif..................................... 303

Middle Fork of Yuba River above Oregon Creek, Calif............................ 304

Yuba River at Narrows Dam, CaLIf............................................... 306

Yuba River at Marysvllle, Calif................................................ 307

Milton-Bowman tunnel at outlet, CalIT.......................................... 308

Oregon Creek near North San Juan, Calif........................................ 309

North Fork of Yuba River near Sierra City, Calif............................... 310

North Fork of Yuba River below Goodyears Bar, Calif............................ 311

South Fork of Yuba River at Jones Bar, Calif................................... 312

Bowman Lake near Granitevllle, Calif........................................... 313

Canyon Creek below Bowman Lake, Calif.......................................... 314

Bowman-Spauldlng Canal at intake, Calif........................................ 315

Deer Creek near Smartvllle, Calif.............................................. 316

Bear River near Auburn, Calif.................................................. 317

Bear River near Wheatland, Calif............................................... 318

Bear River Canal near Colfax, Calif............................................ 319

American River Basin............................................................. 320

North Fork of American River at North Fork Dam, Calif.......................... 320

North Fork of American River at Rattlesnake Bridge, Calif...................... 321

American River at Fair Oaks, Calif............................................. 322

American River at Sacramento, Calif............................................ 323

Middle Fork of American River near Auburn, Calif............................... 324

South Fork of American River near Kyburz, Calif................................ 325

South Fork of American River near Camino, Calif................................ 326

Echo Lake flume near Vade, Calif............................................... 327

Medley Lakes Outlet near Vade, Calif........................................... 328

Silver Lake Outlet near Kirkwood, Calif........................................ 329

Seepage from Silver Lake near Kirkwood, Calif.................................. 330

Silver Fork of South Fork of American River near Kyburz, Calif................. 331

Twin Lakes Outlet near Kirkwood, Calif......................................... 332

El Dorado Canal near Kyburz, Calif............................................. 333

Alder Creek near Whitehall, Calif.............................................. 334

Silver Creek at Union Valley, Calif............................................ 335

Silver Creek near Placerville, Calif........................................... 336

South Fork of Silver Creek near Ice House, Calif............................... 337

American River flume, near Camino, Calif........................................ 338

Colusa and Yola Basins........................................................... 339

Knights Landing Ridge Cut at Knights Landing, Calif............................ 339

Clear Lake at Lakeport, Calif.................................................. 340

Cache Creek at Yolo, Calif..................................................... 341

North Fork of Cache Creek near Lower Lake, Calif............................... 342

Putah Creek near Guenoc, Calif................................................. 343

Putah Creek near Winters, Calif................................................ 344

Napa River Basin................................................................... 345

Napa River near St. Helena, Calif................................................ 345

Conn Creek near St. Helena, Calif................................................ 346

Russian River Basin................................................................ 347

East Fork of Russian River near Calpella, Calif.................................. 347

Russian River near Hopland, Calif................................................ 348

Russian River near Healdsburg, Calif............................................. 349

Russian River at Guerneville, Calif.............................................. 350

Dry Creek near Healdsburg, Calif................................................. 352

Eel River Basin........................................................:........... 353

Lake Pillsbury at Hullville, Calif............................................... 353

Eel River at Hullville, Calif.................................................... 354

Eel River at Van Arsdale Dam, near Potter Valley, Calif.......................... 355

Eel River at Scotia, Calif....................................................... 356

Potter Valley powerhouse tailrace near Potter Valley, Calif...................... 357

South Fork of Eel River near Miranda, Cal if...................................... 358

Van Duzen River at Bridgeville, Calif............................................ 359

Klamath River Basin................................................................ 360

Williamson River below Sprague River, near Chiloquln, Oreg....................... 360

Upper Klamath Lake near Klamath Falls, Oreg...................................... 361

Link River at Klamath Falls, Oreg................................................ 362

Klamath River at Keno, Oreg...................................................... 363

Klamath River below Fall Creek, near Copco, Calif................................ 364

Klamath River at Somesbar, Calif................................................. 065

Smaller reservoirs in Klamath River Basin........................................ 366

Sprague River near Chiloquin, Oreg............................................... 367
VIII CONTENTS

Gaglng-statlon records Continued.

Klamath River Basin Continued. " Page

Cascade Canal near Fish Lake, Oreg................................................ 368

"A" canal at Klamath Falls, Oreg.................................................. 369

Keno Canal at Klamath Falls, Oreg................................................. 370

Lost River diversion canal near Olene, Oreg....................................... 371

Diversion from Klamath River to Lost River near Olene, Oreg....................... 372

Fall Creek at Copco, Calif........................................................ 373

Keene Creek Canal near Ashland, Oreg.............................................. 374

Scott River near Fort Jones, Calif................................................ 375

Salmon River at Somesbar, Calif................................................... 376

Trinity River at Lewlston, Calli^^,,............................................. 377

Trinity River near Hoopa, Calif................................................... 378

Smith River Basin................................................................... 379

Smith River near Crescent City, Calif............................................. 379

Miscellaneous discharge measurements.................................................. 330

Index................................................................................. 385

ILLUSTRATIONS

Page

Plate 1. Gaglng-statlon structures: A, Fish Creek near Duarte, Calif.; B, San 

Joaquln River below KerckJToff powerhouse, Calif.; C, North Fork of 

Cache Creek near Lower Lake, Calif........................................ 2

Plate 2. Gaglng-statlon structures; A, Middle Fork of American River near Auburn,

Calif.; B, Pit River near Canby, Calif.................................... 3
SURFACE WATER SUPPLY OF PACIFIC SLOPE BASINS IN CALIFORNIA, 1942

SCOPE OF WORK

This volume Is one of a series of 14 reports presenting results of measurements of 

stage and flow made on streams, lakes, and reservoirs In the United States during the 

water year ending September 30, 1942. The work was begun In 1888 In connection with 

special studies relating to Irrigation. Measurements of the flow of streams and of the 

stage and contents of lakes and reservoirs have been made at about 9,400 gaging stations 

In the United States and also at many gaging stations In Alaska and Hawaii. In July 1942, 

4,970 gaging stations were being maintained by the Geological Survey and cooperating organizations. Miscellaneous discharge measurements were made at many other points.

In the execution of the work many State and private organizations have cooperated, 

either by furnishing data or by assisting In collecting data. Cooperation of the first 

kind Is acknowledged In connection with the description of each statlon> affected; cooperation of the second kind Is acknowledged on page n .

DEFINITION OF TERMS

The units In which stream-flow data are presented In this report and other terms used 

herein are defined as follows:

"Second-feet" is an abbreviation for "cubic feet per second." A second-foot 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.

"Second-feet per square mile" Is the average number of cubic feet of water flowing per 

second from each square mile of area drained, on the assumption that the runoff Is distributed uniformly both as regards 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. It Is used 

for comparing runoff with rainfall, which Is usually expressed In Inches.

An "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 connection with 

storage for Irrigation.

"Second-foot-day" Is the volume of water represented by a flow of 1 second-foot 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 an abbreviation for the term "relation between gage 

height and discharge."

"Control" Is a term used to designate a feature downstream from the gage that determines 

the stage-discharge relation at the gage. This feature may be a natural section, a reach 

of the channel, or an artificial structure.

EXPLANATION OF DATA

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

discharge, and general information used to supplement the records of stage and discharge

1
2 EXPLANATION OF DATA

measurements 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 the fluctuations. Measurements of discharge are made with a current 

meter by the general methods outlined in standard textbooks on the measurement of river 

discharge. Typical structures in use at gaging stations are shown on plate I.

Ratine tables giving the discharge for any stage are prepared from the discharge measurements. The application of the daily mean gage height to these rating tables gives the 

dally 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 "sMfting-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. At times the stage-discharge relation for a station 

may be temporarily changed by the presence of aquatic growth or debris on the control. 

For such times the dally mean discharge Is computed by what is essentially the "shiftingcontrol" method, described above.

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

reservoirs, tributary streams, or other sources, which necessitates the use of the "slope 

method," in which the slope or fall in a reach of the stream is a factor in the determination of 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 stage-discharge relation Is affected by changing stage, and for them the rate of 

change of stage is used as a factor in the determination of discharge.

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

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

the winter, which makes it 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 stations in the same or nearby basins. The days 

included In the periods of ice effect and the days during the winter period on which discharge measurements were made are indicated in the table by symbols referring to footnotes 

or are given in a general note following the table.

For most of the gaging stations on streams In the area covered by this report the data 

presented comprise a description of the station, a table showing the daily discharge of 

the stream, and a table of monthly and yearly discharge and runoff. Skeleton rating 

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

greater part of the year was determined by the shifting-control method, the slope method, 

or other special methods.

The description of the station gives the type of gage, its latitude and longitude 

determined from the best available maps, and Information in regard to diversions that 

decrease the flow at the gage, artificial regulation from pondage or storage, and the 

accuracy of the records. Under "Average discharge" is given the average discharge for the 

number of years indicated. It Is given only for stations for which there are 10 or more
GEOLOGICAL SURVEY WATER-SUPPLY PAPER 901 PLATE 1

A. FISH CREEK NEAR DUARTE, CALIF. 

Note broad-crested control need in southern California.

a. SAN JOAQUIM RIVER BELOW KERCKHOFF POWERHOUSE, CALIF.

C. WORTH FORK OF CACHE CREEK NEAR LOWER LAKE, CALIF.

GAGIJNG-STATIOJN STRUCTURES.
GEOLOGICAL SURVEY WATER-SUPPL Y PAPER 9C1 PLATE 2

.4. MIDDLE FORK OF AMERICAN RIVER NEAR AUBURN, CALIF.

B. PIT RIVER NEAR CANBY, CALIF.

GAGING-STATION STRUCTURES.
EXPLANATION OF DATA 3

complete years of record. Under "Extremes" are given the maximum discharge and gage 

height; the minimum discharge if there is little or no regulation; the minimum dally 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 or a nonrecording gage read at the time of the crest. Likewise the minimum discharge represents the lowest stage, unless otherwise qualified. Selected peak discharges 

with the times of their occurrence are given below the table of monthly discharge for some 

stations. This supplementary information is generally omitted for stations having drainage areas of less than 10 square miles or more than 10,000 square miles or if the peak 

discharges usually exceed the corresponding nean discharges for the day by less than 10 

percent. ,

For stations equipped with nonrecording gages, the table of daily discharge gives 

the discharge in second-feet corresponding to once-daily readings of the gage or the mean 

of twice-daily readings. For flashy floods the daily mean discharge is determined from 

gage-height graphs based on gage readings made once or twice daily or oftener, as stated 

in the station description. For stations equipped with water-stage recorders, except those 

on streams subject to sudden or rapid fluctuation, the table gives the discharge corresponding to the daily mean gage height. For stations subject to sucli 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.

In the table of monthly discharge the column headed "Second-foot-days" gives the sum 

for each month of the figures given in the table of daily discharge. The column headed 

"Maximum" gives the maximum daily discharge and not the momentary discharge when the 

water surface was at crest stage. Likewise, in the column headed "Minimum" the quantity 

given is the minimum daily discharge. The column headed "Mean" gives the average flow 

in cubic feet per second during the month.

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 is given. A skeleton table of capacity at given stages is 

usually given in the first report in which data for a station are published but is omitted 

from succeeding reports.

TIKE BASIS

At 2 a.m. on February 9, 1942, as an emergency measure, the Nation shifted from 

standard time to "war time," and clock time in the several zones of the country was moved 

ahead 1 hour, or to 3 a.m. This made February 9 a 23-hour day. Time prior to 2 a.m. 

February 9 as given herein refers to standard time; time after 2 a.m. February 9 refers 

to war time. To convert war time to standard time, subtract 1 hour.

Records of daily discharge prior to February 9, 1942, published herein have been computed on the basis of standard time. Records subsequent to that date have been computed
4 TIME BASIS

on the basis of war time. The discharge given for February 9 Is the mean for 23 hours. 

The mean discharge and runoff for the month of February have been computed from the total 

second-foot-days for the month without adjustment for the fact that February 9 was a 

23-hour day. The small error resulting from this procedure has been disregarded.

ACCURACY OF FIELD DATA AND COMPUTED RESULTS

The accuracy of stream-flow data depends primarily on (1) the permanency 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 flow, and Interpretation 

of records.

The station description gives a statement In regard to the general accuracy of the 

records. "Excellent" Indicates that, in general, the dally records are accurate within 

5 percent; "good," within 10 percent; "fair," within 15 percent; and "poor," within 20 or 

a higher percent. The records of monthly and yearly mean discharge and runoff are, in 

general, more accurate than the dally records.

Yield at some stations as indicated by monthly means may vary widely from natural yield, 

owing to diversion, consumption, regulation by storage, increase or decrease In evaporation due to artificial causes, or other factors. For such stations figures of "secondfeet per square mile" and "runoff In Inches" are not published unless storage or diversion 

records are Included indicating 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. Figures of second-feet per square mile and runoff 

in inches are also omitted If the drainage area Includes large noncontributlng areas or 

if the average annual rainfall over the drainage area is less than 20 Inches.

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 show the water supply available for further development, as prior appropriations 

below the station must first be satisfied.

The table of monthly discharge presents In summary the distribution of the flow past 

the station. The table of dally discharge affords opportunity for more detailed studies 

of the variation In flow. As further observations in each succeeding year may be expected 

to throw new light on data previously published, It should be borne in mind that such data 

are subject to revision in succeeding water-supply papers.

PUBLICATIONS

The results of stream-flow measurements are now published annually in 14 parts, each 

part covering an area whose boundaries coincide with natural drainage features as indicated 

below:

Part 1. North Atlantic slope basins (St. John River to York River).

2. South Atlantic slope and eastern Gulf of Mexico basins (James River to 

	Mississippi River).

3. Ohio River Basin.

4. St. Lawrence River Basin.

5. Hudson Bay and upper Mississippi River basins.

6. Missouri River Basin.

7. Lower Mississippi River Basin.

8. Western Gulf of Mexico basins.
PUBLICATIONS 5

9. Colorado River Basin.

10. The Great Basin.

11. Pacific slope basins In California.

12. Pacific slope basins In Washington and upper Columbia River Basin.

13. Snake River Basin.

14. Pacific slope basins In Oregon and lower Columbia River Basin.

Water-supply papers and other publications of the Geological Survey containing data on 

the water resources of the United States may be obtained or consulted as explained below.

1. Copies may be purchased at nominal cost from the Superintendent of Documents, 

Government Printing Office, Washington, D. c., who will, on application, furnish lists 

giving prices.

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 local offices of the water-resources 

branch of the Geological Survey as follows:

East of the Mississippi River:

Albany, N. Y., 526 Federal Building.

Ashevllle, N. C., 220 Post Office Building.

Atlanta, Ga., 5 North Rhodes Center.

Augusta, Maine, Statehouse.

Baton Rouge, La., 124 Geology Building, Louisiana State University.

Boston, Mass., 945 Post Office Building.

Charleston, W. Va., 408 Union Building.

Charlottesville, Va., House G, Dawson Row, University of Virginia.

Chattanooga, Term., 442 Post Office Building.

College Park, rid., Engineering Building, University of Maryland.

Columbia, S. C., 119 United States Courthouse.

Columbus, Ohio, 404 Engineering Experiment Station, Ohio State University.

Harrisburg, Pa., 490 Education Building.

Hartford, Conn., 203 Federal Building.

Indianapolis, Ind., 300 Reserve Loan Life Insurance Building.

Jackson, Miss., 208 Mlllsaps Building.

Knoxville, Term., 337 Post Office Building.

Louisville, Ky., 652 Federal Building.

Madison, Wls., 666 State Office Building.

Montgomery, Ala., 507 Post Office Building.

New Philadelphia, Ohio, Miami Conservancy District Building.

Ocala, Fla., 302 Post Office Building.

Pittsburgh, Pa., 515 Plaza Building.

St. Paul, Minn., 808 New Post Office Building.

Trenton, N. J., 228 Federal Building.

Urbana, 111., 14 Post Office Annex, Elm Street.

Williamsburg, Ky., Second and Sycamore Streets.

West of the Mississippi River:

Austin, Tex., 302 West 15th Street.

Boise, Idaho, 429 Federal Building.

Denver, Colo., 230 Customhouse.

Fort Smith, Ark., 6 Post Office Building.

Helena, Mont., 408 Federal Building.

Honolulu, Hawaii, 225 Federal Building.

Idaho Falls, Idaho, 204 Federal Building.

Iowa City, Iowa, 503 Hydraulic Laboratory, University of Iowa.

Lincoln, Nebr., 1404 Statehouse.

Los Angeles, Calif., G-31 United States Post Office and Courthouse.

Oklahoma City, Okla., 303 Capital Office Building.

Portland, Oreg., 606 Post Office Building.

Rolla, Mo., Missouri Geological Survey Building, Missouri School of Mines

and Metallurgy.

St. Louis, Ilo., 1002 New Federal Building. 

Salt Lake City, Utah, 303 Federal Building. 

San Francisco, Calif., 625 Market Street Building. 

Santa Fe, N. Mex., 204 United States Courthouse. 

Tacoma, Wash., 1100 Washington Building. 

Topeka, Kans., 305 Federal Building. 

Tucson, Ariz., 210 Post Office Building.

A list of the Geological Survey publications may be obtained by applying to the 

Director, Geological Survey, Washington, D. C.
PUBLICATIONS

Early records of the flow of streams In the United States were published in the reports 

listed below:

Stream-flow data for the years 1884-1901, In reports of the Beologlcal 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 131. .... 

16th A pt. 

B 140. ....

18th A, pt.

W 16....... 

19th A, pt.

20th A, pt. 

W 35 to 39. 

21st A, pt. 

W 47 to 52. 

22d A, pt. 

W 65, 66.. . 

W 75. ......

OlCMOltOOl .01 .

4

4

4 

4 

4

Character of data

Descriptive information only.

Descriptive information only. 

Descriptions, measurements, gage heights, ratings, and 

monthly discharge (also many data covering earlier years).

Descriptions, measurements, ratings, and monthly discharge 

(also similar data for some earlier years). 

Descriptions, measurements, and gage heights of streams 

east of the Mississipol River and Missouri River and 

tributaries above Kansas River. 

Descriptions, measurements, and gage heights of streams 

west of the Mississippi River except Missouri River and 

tributaries above Kansas River. 

Descriptions, measurements, ratings, and monthly discharge 

(also some long-time records). 

Measurements, ratings, and gage heights of streams east of 

the Mississippi River and Missouri River and tributaries. 

Measurements, ratings, and gage heiojits of streams west of 

the Mississippi River except Missouri River and 

tributaries.

Descriptions, measurements, gage heights, and ratings...... 

Monthly discharge. ............. ............................

Year

1884 to Sept. 1890. 

1S64 to June 30, 1891. 

1884 to Dec. 31, 1692. 

1888 to Dec. 31, 1893. 

1893-94.

1895.

1896. 

1895-96.

1897. 

1897.

1897. 

1898. 

1898.

1898. 

1899. 

1899. 

1900. 

1900 

1901. 

1901.

Papers on surface water supply containing records from 1899 to date, grouped by years 

and drainage basins, are listed, by number on page 7. The data for any particular 

station will, In general, be found In the reports covering the years during which the 

station was maintained. For example, the date for 1910 to 1920 for any station In the 

area covered by part 3. are published In Water-Supply Papers 283, 303, 323, 353, 403, 433, 

453, 473, 503, which contain records for the Ohio River Basin for those years.

The records at most of the stations discussed In these reports extend over a series of 

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 listed appearing In the same 

relative order as the streams and gaging stations in the body of the report. An index of 

the records obtained prior to 1904 has been published In Waters-Supply Paper 119.

Each of the reports on surface water supply for the year 1939, Issued as Water-Supply 

Papers 871 to 884 (see table on p. 7), contains a summary of yearly discharge at gaging 

stations In the area covered by that report. Gaging stations at which 10 or more complete years of record have been collected are represented. These summaries are available 

also as separate reprints.
upply papers containing results of stream meas

(For basins Included see p. 4)

Year

1899 «... 

1900 g... 

1901 ..... 

1902 ..... 

1903.....

1904..... 

19~05 ..... 

1906..... 

1907-8... 

1909.....

1911.....

1913..... 

1914.....

1915..... 

1916.....

1918..... 

1919-20..

1923..... 

1924..... 

1925.....

1926. ....

1928..... 

1929..... 

1930.....

ids!.....

1 OXO

1935.....

1936".....

1938.....

1940 .....

1941..... 

1942.. . ..

1

35 

47, h48 

65, 75 

82 

97

0124, p!25, ql26 

o!65, p!66, q!67 

0201, p202, q203 

241 

261

281 

301 

321 

351 

381

401 

431 

451 

471 

501

541

561 

581 

601

621 

641 

661 

681 

696

711 

726 

741 

756 

781

801 

821 

851 

871 

891

921 

9bl

2

b35, 36 

48 

65, 75 

b82, 83 

b97. 98

q!26, 127 

q!67, 168 

q203, 204 

242 

262

2B2 

302 

322 

352 

382

402 

432 

452 

472 

502

542 

562 

582 

602

622 

642 

662 

682 

697

712 

727 

742 

757 

782

802 

822 

852 

072 

892

922

052

3

36 

48, 149 

65, 75 

83 

98

128 

169 

205 

243 

263

283 

303 

323 

353 

383

403 

433 

453 

473 

503

543 

563 

583 

603

623 

643 

663 

683 

698

713 

728 

743 

758 

783

803 

825 

853 

873 

893

923

4

36 

49 

65, 75 

m82, 83 

97

129 

170 

206 

244 

264

284 

304 

324 

354 

384

404 

434 

454 

474 

504

544 

564 

584 

604

624 

644 

664 

684 

699

714 

729 

744 

759 

784

804 

824 

854 

874 

894

924 

954

5

36 

49 

k65, 66, 75 

)c83, 85 

k98. 99. nlOO

k!28, 130 

171 

207 

245 

265

2B5 

305 

325 

355 

385

405 

435 

455 

475 

505

525 

545 

565 

585 

605

625 

645 

665 

685 

700

Tl'S 

730 

745 

760 

785

805 

825 

855 

875 

895

925

955

6

036, 37 

49, J50 

66, 75 

84 

99

130, r!31 

172 

208 

246 

266

286 

306 

326 

356

436 

456 

476 

506

526 

546 

566 

586 

606

626 

646 

666 

686

701 --"Tie

731 

746 

761 

786

806 

826 

856 

876 

896

926 

956

7

37 

50 

k65, 66, 75 

k83, 84 

k98. 99

k!28, 131 

k!59, 173 

k205, 209 

247 

267

287 

307 

327 

357 

387

407 

437 

457 

477 

507

527 

547 

567 

587 

607

627 

647 

667 

687 

702

717 

732 

747 

762 

787

S07 

827 

857 

877 

897

927 

957

8

66, 

1

1

2

2

2

2

3

3

3

3

4

4

4

4

5

5

5

5

5

6

6

6

6

6

7

7

7

7

7

7

8

8

8

8

8

9

9

a Rating tables and Index to Water-Supply Papers 35-39oontained In Water-Supply 

Paper -39. Tables of monthly discharge for 1899 In 21st Annual Report, part 4,

b James River only.

c Gallatln River.

d Green and Gunnlson Rivers and Colorado River above Gunnlaon River.

e Mojave River only.

f Kings and Kern Rivers and south Pacific slope basins.

g Rating tables and Index to Water-Supply Papers 47-52 and data on precipitation, 

wells, and Irrigation In California and Utah contained In Water-Supply Paper 52. 

Monthly discharge for 1900 In 22d Annual Report, part 4.

h Wlsaahlckon and Schuylklll Rivers to Jamea River.

1 Scloto River.

j Loup, P

k Tributa

m Lake On

n Hudson 

o New Eng

p Hudaon 

q Susqueh

r Platte 

s The Gre

aslns.

t Below m

u Rogue, 
8 PUBLICATIONS

From time to time reports 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 have been revised), as well as some records not contained in the annual series of water-supply papers. The following table gives the numbers and titles of these reports, arranged in alphabetical order by States and drainage 

basins.

Reports containing compilation of discharge by States and drainage basins

Water-supply 

Paper

107

296

299

300

477

597-B

636-D

636 -E

637-A

74

197

415

230

370

850

424

492

870 

156

469

395

617

517

618 

ion J.J7O

491

536

279

192

358

491

109

Period

1895-1903

1887-1912

1878-1912

1891-1912

1890-1916

1895-1927

1895-1927

1894-1927

1895-1927

1884-1900

1895-1905

1845-1915

1894-1906

187S-1910

1896-1937

1875-1916

1678-1919

1919-35 

1895 1905

1S94-1921

1888-1914

1897-1927

1889-1920

1S94-1926

1890 1906 

189S-1917

1895-1920

1904-9

1895-1906

1S98-1913

1898-1917

1890-1904

State or drainage basin and title

STATE

Alabama, Water powers of, with an appendix on stream measurements In

Mississippi.

California, Water resources of, part 1, Stream measurements In Sacramento River Basin.

California, Water resources of, part 2, Stream measurements In San

Joaquln River Basin.

California, Water resources of, part 3, Stream measurements In the Great

Basin and Pacific Coast river basins.

California southern. Surface water supply of Pacific slope of.

California Surface water supply of Sacramento River Basin.

California Surface water supply of San Joaquln River Basin.

California southern, Surface water supply of Pacific slope basins In.

California Surface water supply of minor San Francisco Bay, northern

Pacific, and Great basins In.

Colorado, Water resources of.

Georgia, Water resources of.

Massachusetts, Surface waters of.

Nebraska, Surface water supply of.

Oregon, Surface water supply of.

Texas, Summary of records of surface waters of.

Vermont, Surface waters of.

Washington, Summary of hydrometrlc data In.

Washington, Summary of records of surface waters of.

Wyoming, Surface waters of, and their utilization.

DRAINAGE BASIN

Colorado River (Arlz., Colo., N. Mex., Utah, Wyo. ) and Its utilization.

Colorado River, upper (Colo., Utah), and Its utilization.

Great Salt Lake Basin, Water powers of.

Green River (Utah, Wyo.) and Its utilization.

Milk River. (See St. Mary and Milk Rivers.)

New Kanawha River Basin (N. C., Va.., W. Va.j, Surface water supply of.

Penobacot River Basin (Maine), Water resources of.

Potomac River Basin (D. C., Md., W. Va. )

Rio Grande Basin (Colo., N. Mex., Tex.), Water resources of, 1888-1913.

St. Mary and Milk Rivers (Mont., Canada), Water supply of.

Susquehanna River Basin (Pa., Md. ), Hydrography of.

Records of discharge have been published also in state reports. Some of these are 

not contained in the publications of the Geological Survey or are revisions of records 

previously published in its water-supply papers. The following table contains a list of 

these reports.

State reoorts containing compilation of records of discharge

State

Alabama. .... 

Arkansas .... 

Colorado. . . .

Connecticut.

Georgia.... . 

Do.......

Do. ......

Period

1895-1915 

1857-1928 

1881-1935

1881-1938

1900-1927

1895-1906 

1907-19

1900-1934

Report

Bull. 17, Water powers of Alabama. ...... 

Stream-gaging Rept. 1. .................. 

Water resources of Colorado, Appendix 2, 

Data on stream-gaging stations of 

Colorado. 1 

Water resources of Colorado, Appendix 3,

vols. 1 and 2, Stream- flow data of 

Colorado. 

Bull. 44, Water resources of Connecticut.

Bull. 16, Water powers of Georgia. ...... 

Bull. 38, Water powers of Georgia. ......

Stream-flow data of Illinois. ...........

Issued by

Geological Survey of Alabama. 

Arkansas Geological Survey, 

State Planning Commission, 

Water Conservation Board, 

State engineer. 

Do.

State Geological and Natural 

History Survey. 

Connecticut State Water

Commission. 

Geological Survey of Georgia. 

Do. 

Rivers and lakes Commission.

Division of Waterways.

1 Contains records of yearly discharge only.

2 Contains records of monthly discharge In second-feet per square mile.
PUBLI CATIONS

State reports containing compilation of records of discharge Continued

State

Indiana.....

Kentucky. . . . 

Louisiana. . .

Maryland. . . . 

Minnesota.. . 

Missouri....

Nebraska.. ..

New Jersey.. 

Do. ......

New Mexico. . 

North Carolina.

North Dakota

Pennsylvania

Rhode Island 

Tennessee. . .

Virginia. ... 

Washington. .

Wisconsin. . .

Period

1923-27 

1927-30

1873-1932 

1873-1940

1895-1919 

1919-24 

1924-28

1928-35 

1935-39 

1910-20 

1903-58

1887-1920 

1929-37

1909-12 

1857-1926 

1927-39

1889-1911 

1881-1938

1894-1914

1914-28 

1891-1928

1928-34

1888-1925 

1889-1923

1889-1936 

1919-21

1882-1938 

1898-1921

1902-39

1898-1939 

1878-1914 

1914-24 

1924-30 

1930-36 

1890-1911 

1928-32

1929-41 

1874-1924 

1920-30 

1889-1905 

1906-10 

1911-1916 

1895-1927 

1878-1933

1888-1914 

1914-23

Report

Pub. 72, Surface water supply of 

Indiana. 

Pub. 112, Surface water supply of 

Indiana.

Summaries of flow relating to Iowa 

streams.

Surface waters of Kentucky. .............

Geol. Bull. 16, Surface water supply of 

Louisiana.

Flow data and draft storage curves for 

major streams In Maryland.

 sota. 

Vol. 20, 2d series. Water resources of 

Missouri. 

Vol. 26, 2d series, Surface waters of 

Missouri.

Special Kept. 10, vols. 1-4, Water resources of lion tana.

Bull. 33, Surface water supply of New 

Jersey.

Surface water supply of New Mexico...... 

Bull. 34, Discharge records of North 

Carolina streams.' 

Bull. 39, Discharge records of North 

Carolina streams.* 

Report to Governor of North Dakota on 

flood control.

Bull. 200, Compilation of stream-flow 

records of Ohio.

Bull. 3, Ohio stream-drainage areas and 

flow-duration tables.

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. 

Report of the Water Supply Commission of 

Pennsylvania. 

Stream-flow records of Pennsylvania.....

Bull. 34, Water resources of Tennessee. 

Bull. 40, Surface Waters of Tennessee. 5 

5th biennial report. State engineer..... 

7th biennial report, State engineer..... 

10th biennial report. State engineer.... 

Bull. 31, Water resources of Virginia... 

Bull. 5, Monthly and yearly summaries of 

hydrometrlc data. 

1st report of Railroad Commission of 

Wisconsin to Legislature on water 

powers . 

2d report of Railroad Commission of Wisconsin to Legislature on water powers.

Issued byDepartment of Conservation. 

Do.

Iowa State Planning Board. 

Iowa Geological Survey.

Kansas Water Commission. 

Do. 

Kansas State Board of Agriculture. 

Do. 

Do. 

Kentucky Geological Survey. 

Department of Conservation.

Maine Water Power Commission. 

State Planning Commission and 

Water Resources Commission. 

State Drainage Commission.

Missouri Geological Survey 

and Water Resources. 

Do.

Office of the State engineer. 

Montana Agricultural Experiment Station. 

Bureau of Water Power, Irrigation, and Drainage. 

Do. 

Department of Conservation 

and Development. 

State Water Policy Commission. 

Office of the State Engineer. 

Department of Conservation 

and Development. 

Do.

State chief engineer.

State Planning Board. 

Engineering Experiment Station, Ohio State University. 

Department of Agriculture, 

Division of Conservation 

and Natural Resources. 

Engineering Experiment Station, Ohio State University. 

Office of the State Engineer.

Do. 

Do. 

Do.

Water Supply Commission of 

Pennsylvania. 

Department of Forests and 

Waters. 

Department of Public Works. 

Department of Education. 

Do. 

Office of the State Engineer. 

Do. 

Do. 

Conservation Commission. 

Department of Conservation 

and Development. 

Railroad Commission of Wisconsin.

Do.

2 Contains records of monthly discharge In second-feet per square mile.

3 Contains records of weekly discharge.

4 Contains records of maximum and minimum dally, weekly, and monthly discharge and yearly mean 

discharge.

Note.- In addition to the records contained In the reports listed above, the following States 

have issued annual or biennial reports In which are contained records of discharge: California, 

Colorado, Connecticut, Idaho, Indiana, Maine, Missouri, Montana, Nebraska, Nevada, New Mexico, 

New York (al»o New York City Board of Water Supply and city of Rochester), North Dakota, Oregon, 

Pennsylvania, Washington, and Wyoming.

530350 O - 43 - 2
10 PUBLICATIONS

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 

reports also contain other pertinent hydrologlc information and analyses and compilations 

of data relating to earlier noteworthy floods. The following list gives the numbers and 

titles of these reports.

Water-Supply

Paper Title

88 The Passaic flood of 1902.

92 The Passaic flood of 1903.

96 Destructive floods In the United States in 1903.

147 Destructive floods In the United States In 1904.

162 Destructive floods In the United States in 1905.

334 The Ohio Valley flood of March-April 1913.

426 Southern California floods of January 1916.

487 The Arkansas River flood of June 3-5, 1921.

488 The floods In central Texas In September 1921.

520-G Some floods In the Rocky Mountain region.

636-C The New England flood of November 1927.

771 Floods In the United States, magnitude and frequency.

773-E The New York State flood of July 1935.

796-B Flood on Republican and Kansas Rivers, May and June 1935.

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

796-G Major Texas floods of 1935.

798 The floods of March 1936, part 1, New England Rivers.

799 The floods of March 1936, part 2, Hudson River to Susquehanna River region.

800 The floods of March 1936, part 3, Potomac, James, and upper Ohio Rivers.

816 Major Texas floods of 1936.

836-A Stages and flood discharges of the Connecticut River at Hartford, Conn.

838 Floods of Ohio and Mississippi Rivers, January-February 1937.

842 Floods in Canadian and Pecos River Basins of New Mexico, May and June 1937.

843 Floods of December 1937 in northern California.

844 Floods of March 1938 In southern California.

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

867 Hurricane floods of September 1938.

869 Flood of August 1935 In Muskingum River Basin, Ohio.

914 Texas floods of 1938 and 1939.

RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY

The following table contains a list of gaging stations for.the area covered by this 

report at which records of daily discharge were collected during the year ending September 

30, 1942, by agencies other than the Geological Survey. The records for these stations 

are not contained In publications of the Geological Survey.

Records of discharge collected by agencies other than the Geological Survey

Stream Location Period

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

Aliso Wash......................

Azusa Duarte tunnel diversion....

Beaver Creek....................

Big Dalton Creek................

Big Tujunga Creek...............

Oalabasas Creek.................

Oalleguas Creek.................

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

Clear Lake Reservoir (elevation

and discharge). 

Compton Creek...................

Domingnez Channel...............

Dume (Zuma) Creek...............

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

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

Gerber Reservoir (elevation and

discharge). 

"J" Canal.......................

Short Street, Wilmar, Calif...........................

Nordhoff Street, near Northridge, Calif...............

Mouth of San Gabriel Canyon, near Azuaa, Calif........

SW$ sec. 32, T. 38 S., R. 4 E., below Willow Creek,

Oreg. 

Below Big Dalton Dam, near Slendora, Calif............

Below Big Tujunga dam 1, near Sunland, Calif..........

Venture Boulevard, near West Iios Angeles, Calif.......

Simi, Calif...........................................

Moorpark, Calif.......................................

Sec. 8, T. 47 N., R. 8 E., in California, near Langell

Valley, Oreg. 

Greenleaf Street, Compton, Calif......................

Carson Boulevard, Torrance, Calif.....................

Roosevelt Highway Bridge, Calif.......................

Bills Lane, near El Monte, Calif......................

Below Eaton Wash debris dam, near Pasadena, Calif.....

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

Intake, near southeast corner of sec. 7, T- 41 S., R. 

11 E., Oreg.

SEiSH^ sec. 20, T. 39 S., R. 3 E., 50 feet below diversion dam, 12 miles east of Ashland, Oreg.........

a Station operated by Los Angeles County Flood Control District.

b Records for some earlier years contained in Water-Supply Papers of Geological Survey.

c Station operated by Venture County Water Survey.

d Unpublished records collected by Bureau of Reclametion.

e Monthly discharge 1919-24; daily discherge 1924-41.

f Operated jointly by Los Angeles County Flood Control District and Corps of Engineers,

g Unpublished records collected by Oregon State Engineer.

al929-42 

81=139-42 

a!918-42 

b!942

B1929-42 

al932-42 

B1940-42 

C1934-42 

C1934-42 

del919-42

fl928-42 

a!940-42 

B1930-42 

a!930-42 

B1940-42 

d!926-42

d!923-42 

g!940-42

U. S. Army.
RECORDS OF DISCHARGE COLLECTED BY AGENCIES OTHER THAN THE GEOLOGICAL SURVEY 11

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

Stream

Limekiln Wash. ..................

Little Santa Anita Creek. .......

Los Angeles River. ..............

Monrovia storm drain. ........... 

Montebello storm drain. .........

Paoolma Mash. ...................

Rio Hondo ....................... 

Rublo Wash. ..................... 

San Antonio Creek. ..............

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

Intake .

channels) .

Verdugo storm drain. ............ 

Walnut Wash. ....................

West Fork of San Gabriel River..

Location

Devonshire Avenue, near Chatsworth, Calif ............. 

270 feet below flood-control dam at Sierra Madre, 

Calif. 

Woodlawn Avenue, near Sierra Madre, Calif .............

Marlposa Street, near Burbank, Calif ..................

sees. 7, 8, 17, 18, T. 41 S., R. 11 E., near 

Merrill, Oreg.

Calif. 

Peck Road, Monrovia, Calif. ........................... 

Mines Avenue, Montebello, Calif .......................

Parthenla Street, near Van Nuys, Calif ................

Lower Azusa Road, 1-J miles north of El Monte, Calif... 

Glendon Way, near San Gabriel, Calif .................. 

Mouth of canyon, near Claremont, Calif ................

Valley Boulevard, near El Monte, Calif. ............... 

Florence Street, near Santa Fe Springs, Calif .........

Estelle Avenue, Glendale, Calif. ...................... 

Covina Boulevard, at Baldwin Park, Calif .............. 

4 mile below flood-control dam 2, Calif. ..............

Period

al939-42 

81929-42

81938-12 

&1928 4S

f!938-42

8192""* 42

81932-42 

81932-42

81928-42

81932-42 

81928-42 

81931-42 

al932 42

81937-41 

al934-41 

&1938 42

&1941 42

&1940 42

&1930 42

f!936-42 

a!928-42 

81934-42

a Station operated by Los Angeles County Flood Control District.

d Unpublished records collected by Bureau of Reclamation.

f Operated jointly by Los Angeles County Flood Control District and Corps of Engineers, U.S.Army.

Mote.- The Soil Conservation Service began in 1938 to make studies of runoff from four areas of 

less than 420 acres each in the vicinity of Santa Paula, Calif., and four areas of less than 30 

acres each in the vicinity of Watsonville, Calif. The records are in the files of that organization.

COOPERATION

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

of Public Vlorks, Frank W. Clark, director, and Edward Hyatt, State engineer; the East Bay 

Municipal Utility District; Santa Clara Valley Water Conservation District; San BernarcUro, 

Riverside, Orange, Los Angeles, Ventura, and Santa Barbara Counties; and the cities of 

San Diego, Santa Barbara, Santa Cruz, and Lodl. In Oregon the work was done under 

cooperative agreement with the State of Oregon, Chas. E. Strlcklln, State engineer.

Financial assistance was furnished by the Corps of Engineers, U. S. Amy, In the operation of 35 caging stations In the Pacific slope basins In California.

Financial assistance was also furnished by the Bureau of Reclamation of the United 

States Department of the Interior for the maintenance of five gaging stations In the 

Pacific slope basins In California.

The entire expense of the stream-flow Investigations In the Tuolumne River Basin for 

the Hetch Hetchy project and for Alaneda Creek near Nlles was paid by the city and county 

of San Francisco.

Assistance In collecting records was also rendered by the following organizations: In 

California, by The California Oregon Power Co., the National Park Service of the United 

States Department of the Interior, Southern California Edison Co., Ltd., Pacific Gas f: 

Electric Co., city of Sacramento, Emma Rose & Hobart Estate Co., and Merced, Woodbrldge, 

Thermallto, and Table Mountain Irrigation Districts; In Oregon, by Tiie California Oregon 

Power Co.
12 DIVISION OF WORK

The stream-gaging work was conducted by the water resources branch of the Geological 

Survey, Glenn L. Parker, chief hydraulic engineer, Carl G. Paulsen, assistant chief 

hydraulic engineer, and Rudolph G. Kasel, chief of the division of surface waters. The 

data for stations In California (except Fall Creek and Klamath River near Copco) were 

collected and prepared for publication under the supervision of H. D. McGlashan, district 

engineer; for stations In Oregon (and for Fall Creek and Klamath River near Copco, Calif.), 

under the supervision of G. H. Canfleld, district engineer. The work In Oregon was done 

In collaboration with Charles E. Strlcklln, State engineer.

The records were reviewed and the manuscript prepared for publication under the direction of B. J. Peterson, engineer In charge, and J. W. Gambrell, assistant engineer, section of reports.
GAGING-STATION RECORDS 13

TIA JUANA RIVER BASIN 

Cottonwood Creek at Morena Dam, Calif.

Location.- Lat. 32°41'00", long. 116°32'55", In SWi sec. 14, T. 17 S., R. 4 E., at 

Morena Dam, If miles upstream from Hauser Creek. Altitude of top of spillway gates, 

3,045 feet; that of bed of stream, 2,882 feet.

Drainage area.- 120 square miles.

Records available.- January 1916, October 1936 to September 1942.

Remarks.- Records of discharge represent flow Into Morena Reservoir, computed on basis 

of records of storage, release, leakage, spill, evaporation, and rainfall.

Cooperation.- Records furnished by city of San Diego.

Monthly discharge, water year October 1941 to September 1942

Month

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

September. ....................

Mean 

(second-feet)

21.4 

12.2 

B.B1

62.5

16.2 

24.0 

24.0 

29.2 

3.08 

0 

6.14

.ass

0

12.1

Runoff 

(acre-feet;

1,320 

725 

542

_ _ _*5j_260 _

994 

1,330 

1,470 

1,740 

1S9 

0 

377 

53 

0

8,740

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 

1942; Pacific war time thereafter. To convert war time to 

standard time, subtract 1 hour.

Cottonwood Creek near Dulzura, Calif.

Location.- Lat. 32°40 I 45", long. 116°40'20", In NWi sec. 22, T. 17 S., R. 3 E., at 

Barrett Dam, 1 mile downstream from Pine Valley Creek and about 17 miles northeast 

of Dulzura. Altitude of top of flash gates, 1,615 feet; that of bed of stream, 

1,446 feet.

Drainage area.- 250 square miles.

Records available.- January 1906 to December 1915, October 1936 to September 1942.

Remarks.- Flow regulated by Morena Reservoir, about 9 miles upstream. Records of 

discharge represent flow Into Barrett Reservoir (capacity, 42,796 acre-feet), computed on basis of records of storage, release, leakage, spill, evaporation, and 

rainfall.

Cooperation.- Records furnished by city of San Diego.

Monthly discharge, water year October 1941 to September 1942

Month

September .....................

Water year 1941-42. .........

Mean 

(second-feet)

11 2

22 4

29 8

4.08

11.7

Runoff 

(acre-feet)

243

S.480

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 

1942;Pacific war time thereafter. To convert war time to 

standard time, subtract 1 hour.
14 TIA JU/JIA RIVER BASIN

Cottonwood Creek above Tecate Creek, near Dulzura, Calif.

Location.- Water-stage recorder, lat. 32°34'10", long. 116°45'40", in sec. 27, T. 18 S., 

R. 2 E., half a nile upstream from confluence with Tecate Creek and 5i miles south of 

Dulzura.

Drainage area.- 316 square miles.

Records available.- October 1936 to September 1942.

Extremes.- Maximum discharge during year, 231 second-feet on liar. 15 (gage height, 4.02 

feet; no flow during several months.

1936-42: Maximum discharge, 2,7CO second-feet Feb. 7, 1937 (gage height, 9.65 

feet), from rating curve extended above 550 second-feet on basis of velocity-mean depth 

and area computations; no flow during part of each year.

Remarks.- Records good. Flow regulated by Earrett aiid Ilorena Reservoirs, 10 and 18 miles, 

respectively, above station. Water diverted outside drainage basin by Dulzura conduit. 

(See p. 17 .)

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

.

> eO.06

)

.1

.2

.2

.2

.1

.1

.3

.6

.5

.3

.1

.1

.1

.1

3.1

3.5

3.7

8

10

4.8

3.1

2.5

2.5

2.3

2.2

1.9

Nov.

1.6

1.5

1.6

1.6

1.4

1.2

1.2

.9

1.1

1.1

1.1

3.5

3.7

2.6

2.2

2.2

2.6

2.6

2.6

2.3

2.2

2.3

2.0

1.9

1.8

1.9

1.9

2.0

2.2

2.3

-

Dec.

2.5

2.5

2.6

3.5

3.1

3.9

3.9

3.7

4.5

14

11

5.5

4.8

4.3

4.1

3.7

3.7

3.7

3.5

3.5

3.5

3.5

3.7

5.5

4.5

7.5

5.5

4.8

8

8.5

14

Jan.

52

22

14

11

28

49

50

44

41

44

33

22

15

11

10

10

9

7.5

6.5

6

6

6

5.5

5.5

5

5

5

5

5

4.5

4.5

Feb.

4.3

4.1

3.9.'v

3.5

3.5

3.5

3.3

3.0

3.0

3.3

5.5

9

13

16

22

26

26

26

26

26

52

77

70

57

55

65

65

_

-

-

Mar

55

52

42

Apr.

22

20

20

35 1 22

34

29

27

43

27

21

20

22

26

45

227

211

144

115

96

96

106

75

46

36

86

36

52

50

32

27

24

27

32

52

41

33

29

54

55

48

42

37

34

34

32

38

32

28

27

20

13

10

8

7.5

7.5

8

7

-

May

7

7

6

5.5

5

5

4.5

4.5

4.5

4.5

4.5

4.8

4.5

4.1

3.9

3.9

3.7

3.5

3.3

3.0

2.6

2.6

2.6

2.6

2.8

2.8

2.8

2.5

2.3

2.2

2.2

June

2.0

2.0

1.9

1.8

1.8

1.8

1.6

1.4

1.4

1.3

1.2

1.2

1.1

.9

.8

.7

.6

.6

.6

.6

.6

.5

.3

.2

.1

.1

.1

.1

.1

.1

-

July Aug. Sept.

Month

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

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

Water year 1941-42 ......................

Secondfoot-days

50.90

33,631.8

4,343.8

Maximum

10

3.7

2,060

227

Minimum

.9

2 2

0

Mean

1.64

1.97

92.1

11.9

Runoff in 

acre-feet

101

117

319

66,700

1,040

8,620

Peak discharge.- Pet). 23 (2 o.m. ) 81 

120 sec.-ft.

e Daily discharge less than 0.1 seconi'-foot.

Time basis: Pacific standard time Drier to 2 

To convert war time to standard time, subtract 1

15 (5 p.m.) 281 sec.-ft.; Mar. 21 (1 a.m.) 

Feb. 9, 1942; Pacific war time thereafte
TIA JUANA RIVER BASIN 15

Tia Juana River near Dulzura, Calif.

Location.- Water-stage recorder, lat. 32°33'50", long. 116°4fc>'25", in see. 33, T. 18 S., 

R. 2 E., half a nile downstream from confluence of Cottonwood and Tecate Creeks and 

5& miles south of Dulzura. Altitude of gape, about 550 feet (from topographic nap).

Drainage area.- 476 square miles, of which 62 square miles is in Mexico. 

Records available.- October 1936 to September 1942.

Extremes.- Maximum discharge during year, 452 second-feet Mar. 15 (gage height, 3.23 feet); 

no flow Sept. 14-26.

1936-42: Maximum discharge, 4,700 second-feet Feb. 7, 1937 (gage height, 0.50 feet, 

present datum), from rating curve extended above 300 second-feet on basis of velocitymean depth and area studies; no flow part of each summer.

Remarks.- Records good. Flow regulated by Korena and Barrett Reservoirs on Cottonwood 

Creek.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

6

5

5

5

4

5.5

5.5

5.5

5.5

6

G

11

14

8

6.5

6.5

7

7.5

8

15

16

18

32

34

22

18

15

16

15

13

14

Nov.

13

14

13

14

14

13

11

11

11

11

14

26

22

19

16

18

16

16

16

14

13

13

12

11

11

11

13

12

12

13

-

Dec.

12

12

14

16

15

16

14

14

20

48

45

29

25

20

20

18

18

16

IP.

16

18

16

18

23

22

32

32

27

48

43

54

Jan.

130

105

62

50

57

76

74

66

59

62

45

32

25

25

22

22

20

19

16

14

14

16

16

16

16

16

16

16

16

14

14

Feb.

14

16

18

16

16

16

16

16

16

14

14

16

19

26

27

43

41

37

37

32

37

95

103

SB

71

66

90

95

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February. ..................................

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

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

Hay... .....................................

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

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

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

September ..................................

Water year 1941-42 ......................

Mar.

78

71

59

54

48

43

37

62

45

37

39

45

52

77

368

261

169

139

114

119

130

93

57

57

52

48

66

64

41

39

34

Apr.

29

27

d27

34

39

48

71

54

43

39

86

83

69

59

48

45

45

45

45

37

34

37

26

22

18

16

19

16

20

18

-

Secondfoot-days

355.5

423

737

49,360.2

1,151

1,095

S,598

1,199

214.1

55.4

5.1

3.1

1.7

7,837.9

May

16

15

12

12

10,

10

7.5

7.5

7.5

8

8

7

7.5

7.5

7

7

7.5

7

6

5

4.0

4.5

3.6

3.6

3.4

3.6

3.1

3.4

3.4

3.1

3.4

Maximum

34

26

54

2,230

130

103

368

86

16

4.0

.2

.1

.1

368

June

3.6

3.6

3.6

3.4

3.4

3.1

3.1

4.0

3.4

2.9

2.9

2.2

1.8

2.0

1.8

1.3

1.3

1.3

1.5

1.3

1.0

.6

.4

.3

.3

.3

.3

.3

.2

.2

-

Minimum

4.0

11

12

.5

14

14

34

16

3.1

.2

.1

.1

0

0

July

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

K

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.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

Mean

11.5

14.1

23.8

135

37.1

39.1

83.8

40.0

6.91

1.85

.16

.1

.06

21.5

Sept.

0.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

.1.1

.1

.1

-

Runoff in 

acre-feet

705

839

1,460

97,900

2,280

2,170

5.TL50

2,380

425

110

10

3.4

15,540

Peak discharge.- Jan. 1 (4:30 p.m.) 180 sec.-ft.; Feb. 22 (7 p.m.) 119 sec.-ft.; Mar. 15 (5 

45S sec.-ft.; Mar. 21 (2 a.m.) 155 sec.-ft.

d Doubtful gage-height record; discharge based on that of the preceding day.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
16 TIA JUANA. RIVER BASIN

Tia Juana River near Nestor, Calif.

Location.- Water-stage recorder, lat. 32°32'55", long. 117°05'15", on line between sees. 

Z and 4, T. 19 S., R. 2 W., li miles south of Nestor and 3 miles upstream from mouth. 

Datum of gage is 13.07 feet above mean sea level (levels by California Water arid 

Telephone Cor)

Jrainase area.- 1,668 square miles, of which 1,198 square nlles is in Mexico.

Records available.- January to Septenber 1915, October 1936 to September 1942.

Extremes.- Maximum discharge during year, 2,770 second-feet Mar. 17 (gage height, 4.60 

feet ) ; no flow on many days.

1936-42: Maximum discharge, 17,700 second-feet Feb. 7, 1937 (gage height, 8.20 

feet), from rating curve extended above 2,000 second-feet on basis of velocity-depth 

relation and cross section after the peak; no flow part of each year.

Remarks.- Records good. Flow regulated by Itorena and Barrett Reservoirs, operated by city 

of San Diego, and by Rodriguez Reservoir, operated by Government of Mexico.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

3.2

1.8

2.4

2.1

1.1

2.8

3.2

1.5

1.8

2.8

2.1

15

16

18

18

12

12

10

11

19

23

50

91

80

66

52

43

35

31

26

24

Nov.

24

24

26

26

24

23

23

13

11

15

17

69

50

39

31

28

26

28

28

28

26

26

24

20

18

18

18

15

14

20

-

Dec.

£5

25

25

28

31

22

25

26

35

86

104

80

64

50

45

41

39

37

35

31

33

31

33

41

43

54

57

54

116

104

107

Jan.

244

256

150

91

72

86

94

97

86

72

72

61

50

45

41

41

41

39

37

37

33

30

31

31

31

30

31

31

31

30

30

Feb.

28

28

26

26

28

28

28

30

26

25

20

20

23

33

37

52

54

54

52

52

57

i 69

104

107

94

77

97

110

_

-

-

Mar.

107

100

88

66

59

57

52

54

61

52

50

50

54

77

198

909

2,560

469

204

146

130

116

80

61

54

57

54

66

72

61

57

Apr.

54

48

41

43

50

61

74

88

77

69

77

104

97

91

77

72

69

66

61

59

57

66

57

50

39

35

33

31

35

35

-

May

33

30

22

25

14

12

11

10

14

9

10

8.5

8.5

7

7

5.5

4.2

5

5

4.2

3.6

3.6

3.9

4.2

3.6

2.5

1.9

2.0

1.2

.8

2.0

June

8.5

6

3.0

2.2

3.0

1.7

2.2

2.7

2.2

1.8

1.5

2.2

1.3

6

8

9

6

3.8

2.4

1.1

3.8

9.5

11

6.5

.7

1.0

.6

1.2

1.8

1.2

-

July

4.3

5.5

2.5

2.2

2.7

1.9

1.4

.5

.9

1.2

1.4

1.4

1.0

1.4

1.2

.9

.5

.3

.1

.2

.3

.4

.6

.4

.1

1.7

3.3

1.4

0

.7

1.6

Aug.

0.2

0

0

0

0

.3

.4

0

0

0

0

0

0

0

.1

.4

.7

1.5

4.0

.2

3.0

2.5

1.7

1.9

1.9

.8

.3

0

0

0

0

Sept.

0.0

4.2

5.5

2.0

1.4

1.6

6

8.5

6.5

2.5

2.0

1.0

.6

.1

.5

1.2

1.2

.8

0

0

0

0

0

0

0

0

0

.1

5

5.5

-

Month

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

Water year 1941-42 ......................

Secondfoot-days

14,932.0

maximum

91

2,560

Minimum

20

0

Mean

40.9

Runoff in 

ac re feet

2 750

2gp

29,620

Peak dls

ec.-ft.

;e.- Dec. 29 (2 p.m.) 195 see.-ft.; Jan. 1 (6 p.m.) 364 sec.-ft.; Mar. 17 (9 p.m.)

standard.time nrlor to 2 a.m., Feb. 9, 1942; Pacific we 

standard time, subtract 1 hour.

time thereafter.
TIA JUANA RIVER BASIN 17

Dulzura conduit near Dulzura, Calif.

Location.- Water-stage recorder and Clppolettl weir, lat. 32°37'05", long. 116°45'50", 

 TiTswi sec. 10, T. 18 S., R. 2 E., about 0.1 mile south of State Highway 94 and 2.3 

miles east of Dulzura. Elevation of weir crest, 1,446.41 feet.

Records available.- January 1909 to September 1915, May 1940 to September 1942. 

Extremes.- Maximum daily discharge during year, 41 second-feet Dec. 10; no flow Sept.

1909-15, 1940-42: Maximum daily discharge, 65 second-feet Feb. 4, 1911; no flow, 

for periods in each year.

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

poor. Conduit diverts from Cottonwood Creek at Barrett Dam in NWi sec. 22, T. 17 S. 

R. 3 E.

Day

1

2

3

4

5

6

7

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

10

10

10

10

10

10

10

10

10

10

11

10

flO

fio

10

10

10

10

12

14

15

14

13

13

13

13

12

12

12

13

Nov.

13

12

fl.3

.7

.5

.4

.3

f5.5

f32

34

39

40

40

40

40

40

40

40

40

39

39

39

39

38 fse

38

38

38

38

38

-

Dec.

3S

38

38

39

40

40

40

40

40

41

40

40

40

32

.5

f.3

.3

.3

.3

.3

.3

.3

1.0

.7

.8

1.5

1.4

1.3

1.4

1.5

l.B

Jan.

,2.5

1.8

1.6

1.5

1.5

1.5

f8

10

16

25

31

32

32

32

32

33

33

33

33

33

33

33

33

33

33

33

33

33

33

29

fL6

Feb.

16

16

16

12

f.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

-

-

Month

October. ........................ ..........

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

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

Calendar year 1941 ................. . . .

January. ..... . . .......................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 .......... ...........

Mar.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

10

4.0

2.8

2.0

1.4

1.0

.7

.5

.3

.4

.3

.3

.3

.2

.2

.2

.2

.2

Apr.

0.2

.2

.2

.3

.3

.4

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

3.5

21

36

36

36

36

36

37

37

36

Secondf oot-days

347

880. v

560."

8.223.0

735.4

62.5

26.6

319.0

1,024.4

1,081

1,011

965.5

739.1

7,752.2

-

May

36

36

36

36

36

36

36

36

35

35

35

35

35

36

37

f37

37

36

36

36

36

36

f24

22

22

16

f4.4

f35

37

37

37

Maximum

15

40

41

46

33

16

10

37

37

37

35

32

32

41

June

37

37

37

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

35

35

"

Minimum

10

.3

.3

0

1.5

.1

.1

.2

4.4

35

21

6.5

0

0

July

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

35

33

26

26

26

26

21

31

33

33

33

32

33

33

33

32

Aug.

32

32

32

32

32

32

32

32

32

32

32

32

32

32

6.5

31

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

Mean

11.2

29.4

18.1

22.5

23.7

2.23

.86

10.6

33.0

36.0

32.6

31.1

24.6

21.2

Sept.

32

32

32

32

32

32

32

32

32

32

32

32

31

31

31

22

0

0

0

0

fl.l

16

25

30

30

30

30

30

30

18

-

Runoff in 

acre-feet

688

1,750

1,110

16,310

1,460

124

53

633

2,030

2,140

2,010

1,920

1,470

15,390

f Computed on basis of fragmentary gage-height record.

Note..- Ho gage-height record Mov. 4-7, Dec. 17 to Jan. 6, Feb. 6 to Mar. IS, Mar. 23 to Apr. '21; 

discharge computed on basis of five measurements, eight field estimates of flow, rainfall records, 

and records for Jaraul Creek near Jamul.

Time baala: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war tljne to standard tine, subtract 1 hour.
18 TIA JUANA. RIVER RASI1J

Campo Creek near Campo, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 32°35'20B , long. 

116"31'35", in sec. 24, T. 18 S., R. 4 E., on State highway, about 34 miles southwest 

of Campo.

Drainage area.- 84 square miles, of which 4 square miles is In Mexico. 

Records available.- October 1936 to September 1942.

Extremes.- Maximum discharge during year, 96 second-feet Mar. 14 (gage height, 1.65 feet); 

no flow during several periods.

1936-42: Maximum discharge, 1,470 second-feet Feb. 6, 1937 (gage height, 3.80 

feet), from rating curve extended above 45 second-feet on basis of velocity-nean depth 

relation and cross-sectional area at control; no flow at tines during most summers.

Remarks.- Records good.

Discharge, in seoond-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

5 

5 

5.5 

5.5

5.5

5 

4.6 

5 

6 

5.5

5.5 

13

13 

9.5 

7.5

7 

7 

7 

7.5

11

12 

12 

15 

19 

12

10 

10 

11 

10

12 i 

10

Nov.

10 

9.5 

9.5 

9.5 

.9

8 

7.5 

7 

7 

7.5

7.5 

10 

10 

9.5 

9

9 

10 

11 

11 

10

9.5 

9.5 

9.5 

9 

8

8 

9 

9.5 

10 

10

Dec.

10 

10 

10 

10 

9.5

9 

9 

9 

10 

18

22 

14 

12 

12

10

\io

10*\10X 

10 v

10 

10 

10 

14 

12

23 

18 

14 

22 

21 

29

Jan.

62 

35 

22 

18 

16

16 

15 

14 

14 

12

12 

12 

12 

12 

11

11 

12 

12 

11 

10

10 

10 

11 

11 

11

11 

10 

11 

11 

11 

11

Feb.

11 

11 

11 

10

10

10 

10 

10 

10 

10

10 

10 

10 

14 

14

15 

13 

12

10 

10

13 

32 

15 

12 

11

10 

17 

15

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1941 

ary

h. .....................................

ember. ............................. ...

ter year 1941-42 ......................

Peak discharge.- J

Time basis: Pacif

Mar.

12 

10 

10 

10 

10

10 

10 

9.5 

9.5 

9.5

11 

13 

13 

22 

48

22 

15

13 

12 

10

10 

10 

10 

12 

12

10 

9 

8.5 

8.5 

8 

7.5

Apr.

7.5 

7.5 

7.5 

8 

9

12 

12 

9.5 

9 

9

15 

13 

10 

9 

9

8 

9 

9.5 

8 

8

8.5 

10 

10 

8.5 

8

7 

7 

7.5 

9 

9.5

Secondfoot-days

273.6 

273.5

407.5

5,616.8

457 

346 

385.0 

274.5 

166.1 

57.2 

10.5 

2.3 

2.8

2,658.0

May

8.5 

8.5 

7 

7 

6

6 

6 

6 

6 

6

6 

6 

6 

6 

6

6

6 

5.5 

5.5 

4.6

4.2 

4.2 

3.8 

3.8 

3.8

3.8 

4.2 

3.8 

3.5 

4.2 

4.2

Maximum

June

3.5 

2.8 

3.2

3.0 

3.0

2.8 

2.8 

3.0 

3.0 

2.8

2.4 

2.2

2.0 

1.8 

1.7

1.6 

1.5 

1.5 

1.5 

1.4

1.2 

1.3 

1.1 

1.0 

1.0

.9 

.9 

.8 

.8 

.7

Minimum

19 4.6 

11 7 

29 9

138 2.2

62 10 

32 10 

48 7.5 

15 7 

B.5 3.5 

3.5 .7 

.6 .1 

.2 0 

.2 0

62 0

July

0.6

.5 

.5 

.5 

.5

.4 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.4

.4 

.4 

.3 

.3 

.3

.3 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2

.2 

.1

Aug.

0.1 

.1 

.2 

.1 

.1

.1 

.] 

.1 

.2 

.2

.1 

.1 

.1 

.1 

.1

.1 

.1 

0 

0

0

0 

0 

0 

0 

0

0 

0 

0

.1 

.1 

.]

Mean

8.82 9.12- 

13.1

15.4

14.7 

12.4 

12.4 

9.15 

5.42 

1.91 

.34 

.07 

.09

7.28

Sept.

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

0

0

.1 .1 

.1 .1

0 

0

.1 

.1 

.1

.1

.3 

.1 

.2

.2

Runoff in 

acre-feet

543 

542 

808

11,140

906 

686 

764 

544 

333 

113 

21 

4.6 

5.6

5,270

an. 1 (7:30 a.m.) 78 sec. -ft.; Mar. 14 (10 p.m.) 96 sec. -ft. 

ic standard time orior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.
OTAY RIVER BASIN 19 

Jamul Creek near Ja-nul, Calif.

Location.- Water-stage recorder and broad-crested weir control with 5-foot Venturl flume 

 for low-water notch, lat. 32°38'10", long. 116°53'05", In IlEi sec. 4, T. 18 S., R. 1 

E., 300 feet upstream from county road crossing at upper end of Lower Otay Reservoir, 

1.4 miles downstream from Dulzura Creek and 5% miles south of Jamul. Altitude of 

gage, about 500 feet.

Drainage area.- 72 square miles.

Records available.- April 1940 to September 1942.

Extremes.- Maximum discharge during year, 276 second-feet second-feet liar. 14 (rage height, 2.32

feet); minimum, 1.5 second-feet Sept. 22 (gage height, 0.18 foot). 

1940-42: Maximum discharge, that of liar. 14, 1942; minimum dai

second-foot Oct. 12-23, 1940.

daily discharge, 0.1

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

Water diverted from Cottonwood Creek by Dulzura conduit near Dulzura flows down 

Dulzura Creek and is contained in these records. (See p. 17 .)

Discharge, in seoonc

Day

1 

2 

Z 

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.

9.5 

9.5 

9.5 

9.5 

9.5

9.5 

9.5 

9 

9 

9

9 

12 

10 

9.5 

9

9 

9 

9 

9.5 

12

13

15 

19 

15 

13

13

13 

13 

13 

12 

12

Nov.

12 

13 

9 

5 

3.8

3.1 

2.5 

2.2 

22

28

36 

43 

39 

39 

39

39 

40 

41 

39 

39

39 

39 

39 

39 

39

39 

39 

38 

38 

38

Dec.

38 

38 

39 

39 

39

40 

39 

39 

42 

53

46 

44 

43 

42 

13

a7 

a5 

4.1 

4.0 

4.0

3.8 

3.8 

4.1 

4.5 

4.3

5.5

4.7 

4.3 

4.7 

5.5 

7.5

Jan.

20 

14 

9.5 

8 

7.5

6.5 

8 

13 

14 

25

30 

34 

35 

35- 

35

35

35 

35 

35

34

34 

34 

34 

34 

34

34 

34 

34 

34 

33 

19

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hay. 

June 

July 

Augu 

Sept

Wa

-feet, water year October 1941 to September 1942

Feb.

17 

17 

16 

16 

7.5

4.5 

3.8 

3.3 

2.8 

2.6

2.4 

2.2 

2.6 

3.0 

2.5

3.3 

2.8 

2.4 

2.2

1.9

2.6 

4.3 

4.0 

3.1 

3.0

2.5 

3.8 

3.8

1

lendar year 

ary

h. .............................. ......

1. .....................................

St. ....................................

ter year 1941-42 ............... ...... .j

Mar.

2.8 

2.5 

2.2 

2.1 

1.9

1.9 

2.1 

1.8 

1.9 

2.1

2.5 

3.0 

2.8 

18 

55

24 

14

11 

9 

7.5

6.5 

6 

6 

6 

6

5

4.7 

4.1 

3.8 

3.4 

3.3

Apr.

Secondfoot-days

342.5 

881.6 

670.8

-

826.5 

142.9 

222.9 

374.9 

1,017.5 

1,030 

963 

892 

703.7

8,068.3

3.3 

3.1 

2.8 

3.4 

3.3

4.1 

4.0 

3.4 

3.0 

3.1

7 

6.5 

4.9 

4.3 

3.8

3.3 

3.6 

3.0 

2.6 

2.4

3.0 

13 

33 

35 

36

36 

35 

36 

37 

36

May

37 

37 

36 

36 

36

36 

36 

36 

36 

36

36 

36 

36 

36 

37

37 

36 

36 

 36 

35

36 

36 

28 

21 

21

20 

6.5 

23 

33 

35 

35

Maximum

19 

43 

53

-

35 

17 

55 

37 

37 

36 

34 

30 

32

55

June

36 

36 

36 

36 

36

36 

35 

35 

35 

35

34 

34 

34 

34 

34

33 

33

34 

34 

34

34 

33 

33 

33 

33

34 

34 

34 

34 

34

Minimum

9 

2.2 

3.8

-

6.5 

1.9 

1.8 

2.4 

6.5 

33 

22 

14 

1.8

1.8

July

34 

34 

34 

34 

34

33 

33 

33 

34 

34

34 

34 

34 

34 

34

34 

34 

25 

24 

24

24 

22 

24 

30 

31

31

31 

31 

31 

30 

30

Aug.

Mean

11.0 

29.4 

21.6

-

26.7 

5.10 

7.19 

12.5 

32.8 

34.3 

31.1 

28.8 

23.5

22.1

30 

29 

30 

29 

29

29 

29 

29 

30 

30

30 

30 

29 

29 

14

23 

29 

30 

30 

30

30 

29 

29 

29 

29

29 

29 

30 

30 

30 

30

Sept.

32 

32 

31

31 

30

30 

30 

30 

30 

29

29 

29 

29 

28 

27

26 

6 

2.8 

2.4 

2.1

1.8

3.6 

18 

26 

27

28 

29 

29 

29 

26

Runoff in 

acre-feet

679 

1,750 

1,330

-

1,640 

283 

442 

744 

2,020 

2,040 

1,910 

1,770 

1,400

16,010

Peak discharge.- Kar. 14 (10 a.m.) 276 sec.-ft. 

a No gage-height record; disch.arge commuted on basis of orobable recession curve. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942} Pacific war time the 

o convert war time to standard time, subtract 1 hour.
20 OTAY RIVER BASIN

Otay River at Savage Dam, Calif.

Location.- Lat. 32°36'40", long. 116°55 l 40n , In NWi sec. 18, T. 18 S., R. 1 E., at

 Savage Dam at Lower Otay Reservoir (altitude of top of spillway gates, 491 feet). 

Datum of gage Is 347.20 feet above mean sea level.

Drainage area.- 98 square miles.

Records available.- October 1936 to September 1942.

Remarks.- Records of discharge represent flow Into Lower Otay Reservoir, computed on

 basis of records of storage, release, leakage, spill, Imported water from Cottonwood 

Creek, evaporation, and rainfall. Original dam destroyed Jan. 27, 1916; present 

structure placed In operation Mar. 13, 1922.

Cooperation.- Records furnished by city of San Diego.

Monthly discharge, water year October 1941 to September 1942

Month

Hay. .........................

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

Mean 

(second-feet)

10.6

85.1

0

Runoff 

(acre-feet)

652

61,590

0

Time basis; Pacific standard tine prior to 2 a.m., Feb. 

9, 1942; Pacific war tine thereafter. To convert war time 

to standard time, subtract 1 hour.

SWEETWATER RIVER BASIN

Sweetwater River at Sweetwater Dam, Calif.

v

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

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

Altitude of crest of dam, about 200 feet; that of bed of stream about 150 feet.

Drainage area.- 181 square miles.

Records available.- October 1887 to September 1942.

Average discharge.- 55 years, 24.8 second-feet.

Remarks.- Records of discharge represent flow Into Sweetwater Reservoir, computed on 

basis of records of storage, release, leakage, spill, evaporation, and rainfall.

Cooperation.- Records furnished by California Water & Telephone Co.

Monthly discharge, water year October 1941 to September 1942

Month

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

September. .................

Water year 1941-42. ......

Mean 

(second-feet)

14.4 

14.2 

24.2

90.7

28.1 

20.5 

34.0 

25. S 

7.77 

.958 

.569 

.976 

.739

14.4

Runoff 

(acre-feet)

8S8 

846 

1,490

65,670

1,730 

1,140 

2,090 

1,540 

478 

57 

35 

60 

44

10,400

Time basis; Pacific standard time prior to 2 a.m., Feb. 

1942; Pacific war time thereafter. To convert war time to 

standard time, subtract 1 hour.
SAN DIEGO RIVER BASIN 21

San Diego River at El Capltan Dam, Calif.

Location.- Lat. 32 053'00", long. 116°48'40", In NEi sec. 7, T. 15 S., R. 2 E., at El 

Capltan Dam, 1 mile downstream from Chocolate Creek and 7 miles east of Lakeside. 

Altitude of spillway crest, 750 feet.

Drainage area.- 190 square miles.

Records available.- October 1936 to September 1942.

Remarks.- Flow partly regulated by Cuyamaca Reservoir. Records of discharge represent 

flow into El Capitan Reservoir (capacity, 116,500 acre-feet), computed on basis of 

records of storage, release, leakage, spill, evaporation, and rainfall.

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

Monthly discharge, water year October 1941 to September 1942

Month

Calendar year 1941.......

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

Water year 1941-42. ......

Mean 

(second-feet)

45.7

215

6.71

32.7

Runoff 

(acre-feet)

2,810

155,500

790

399

23,660

Time has Is! Pacific standard time prior to 2 a.m., Feb. 

1942; Pacific war time thereafter. To convert war time to 

standard time, subtract 1 hour.

San Diego River near Santee, Calif.

Location.- Water-stage recorder and unfinished rubble dan control, lat. 32°49'20", long. 

117"03'25", in the Ex Mission San Diego Grant, in Mission Gorge, 6 miles west of 

Santee, San Diego County. Altitude or gage, about 205 feet.

Drainage area.- 380 square miles.

Records available.- May 1912 to September 1942 (incomplete prior to 1920).

Average discharge.- 27 years (1912-15, 1917-19, 1920-42), 42.3 second-feet (26 years, 

43.8 second-feet; figure published in Water-Supply Paper 931 in error).

Extremes.- Maxinum discharge during year, 117 second-feet Jan. 1 (gage height, 0.90 

feet); practically no flow at times in July, August, and September.

1912-42: Maxinum discharge, 70,200 second-feet Jan. 27, 1916 (gage height, 25.1 

feet, 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 surface.

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

Diversions above station for irrigation.
22 SAN DIEGO RIVER BASIN

In second-feet, of San Diego River near Santee, Calif., water year 

October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

aO.l

a.l

a.l

a.l

a.l

a.l

a. 1

a.l

a.l

a.l

a.l

a. 2

a . 2

a. 2

a* 2

a. 2

a. 2

a!2

a. 2

f.4

.4

.7

fl.2

a. 8

a. 6

a * 5

a. 5

a. 4

a. 3

a. 3

a. 3

Nov.

aO.2

a. 2

f.2

.2

.2

.2

.2

.2

.2

.2

.3

3.3

1.5

1.0

.6

.6

.6

.4

.4

.4

.4

.4

.4

.2

.2

.2

.2

.3

.3

.3

-

Dec.

0.3

.3

.4

.5

.4

.4

.3

.3

.7

2.2

1.9

1.2

1.0

.8

.6

.5

.4

.4

.4

.4

.4

.4

.6

.8

1.0

3.8

5

2.9

6.5

11

18

Jan.

51

66

39

30

24

19

16

16

15

13

11

10

9

8

8

8

9

9

8

7.5

6.5

7.5

7.5

7.5

7.5

7.5

6.5

7.5

6.5

5

5

Feb.

5

6

6

5

4.4

4.4

5

4.4

3.8

2.2

1.9

1.7

9

30

15

15

12

9

7.5

6.5

8

39

36

22

18

16

19

20

-

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ............................... ...

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

15

13

13

11

9

9

9

7.5

7.5

7.5

10

11

11

19

92

72

44

30

22

19

13

12

12

12

12

11

9

9

8

8

7.5

Apr.

7.5

6.5

5

4.4

6

7.5

7.5

6.5

6

6.5

18

24

15

12

11

10

10

9

8

8

9

15

13

10

8

7.5

V.5

8

8

7.5

-

May

6.5

6

4.4

3.3

1.9

1.7

1.4

1.4

1.1

1.0

.8

.9

.8

.7

.6

.5

.6

.6

.5

,4

.4

.4

.4

.3

.3

.4

.4

.3

.3

.3

.3

Says ««* 

9.1 1.2

14.0 3.3

63.8 18

70,951.0 7,130

451.0 66

331.8 39

545.0 92

281.9 24

38.9 6.5

3.30 .2

1.55

.31

.99

1,741.65 92

June

fO.2 >

a. 2

a. 2

a 2

a!2

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

a.l

a.l

> a. 08

-

Minimum

0.1

.2

.3

.1

5

1.7

7.5

4.4

.3

_

_

_

-

July

 aO.05

Aug.

 aO.Ol

Mean

0.29

.47

2.06

194

14.5

11.8

17.6

9.40

1.25

.110

.05

.01

.033

4.77

Sept.

> aO.02

 e.05

~

Runoff in 

acre-feet

18

28

127

140,700

895

658

1,080

559

77

6.5

3.1

.6

2.0

3,450

a No gage-height record; discharge comouted on basis of 10 discharge measurements, Interpolation, 

probable recession curves, and rainfal] records, 

e Dally discharge less than 0.1 second-foot. 

f Computed on basis of partly estimated gage-height record.

Boulder Creek at Cuyamaca Reservoir, near Julian, Calif.

Location.- Lat. 32°59'15", long. 116°35'10", in IIEi sec. 8, T. 14 S., R. 4 E., at 

Cuyamaca Reservoir, 7 miles south of Julian. Altitude, 4,590 feet.

Drainage area.- 12.0 square miles.

Records available.- June 1912 to September 1986 (outflow fron Cuyanaca Reservoir), 

October 1935 to September 1942 (inflow to Cuyanaca Reservoir).

Remarks.- Discharge computed by Geological Survey on basis of records of rainfall,

evaporation, storage, overflow, and release fron Cuyanaca Reservoir. Cuyanaca Reservoir was built in 1S86 and enlarged in lfc.94. Its present capacity is 11,600 acre-feet.

Cooperation.- Basic data furnished, by La Ilesa, Lenon Grove, and Spring Valley Irrigation 

District.

Monthly discharge, water year October 1941 to September 1942

Month

Calendar year 1941 .........

MOTT

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

September. ...................

Mean 

(second-feet)

0 129

7.85

17.8

11 8

9 " 92

.050

Runoff 

(acre-feet)

483

12,860

3

Time basis ; ''aelfle standard time orlor to 2 a.m., Feb. 9, 

1942; Pacific war t ; me thereafter. To convert war time to 

standard time, subtract 1 hour.
SAN DIEGO RIVER BASIN 23

San Vicente Creek near Foster, Calif.

Location.- Water-stage recorder, lat. 32°55'25", long. 116°55'20", In SWi sec. 30, T. 

14 S., R. 1 E., 2 miles north of San Vicente damslte and 2& miles north of Foster. 

Prior to Oct. 6, 1941. at site 2 miles downstream. Altitude of gage, about 520 feet 

(from topographic map).

Drainage area.- 66 square miles.

Records available.- October 1941 to September 1942. January to April 1915 and October 

1936 to September 1941 at site at Foster 2 miles downstream (drainage area 75 square 

miles).

Extremes.- Maximum discharge during year, 99 second-feet Mar. 15 (gage height, 1.54 

feet); no flow during parts of several months.

1915, 1936-42: Maximum discharge, 9,400 second-feet, Feb. 7, 1937 (gage height, 

6.80 feet, site and datum then in use), from rating curve extended above 1,500 

second-feet by logarithmic plotting; no flow during parts of most years.

Remarks.- Records fair. Uo diversions or regulation above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

4.7

.5

.2

.2

.2

.2

.2

.2

.2

Nov.

0.2

.2

.2

.2

.2

.2

.2

.2

.3

.5

.5

15

7

5.5

4.0

3.4

2.4

1.6

1.2

1.6

1.6

1.6

1.6

1.6

1.6

1.2

1.2

1.2

.9

.9

-

Dec.

0.9

.9

.9

1.2

.9

1.2

1.2

1.2

32.5

d5

d4.0

d2.0

dl.6

dl.6

dl.6

dl.6

dl.6

dl.6

1.6

1.6

1.6

1.6

2.4

2.0

4.6

5.5

7.5

8.5

10

10

11

Jan.

54

26

die

dll

d8.5

d7.5

d7

d6.5

d6

d5.5

d5

d4.4

d3.8

d3.2

d2.6

d2.7

d2.8

d2.9

d3.0

d3.0

d3.1

d3.1

d3.0

d3.0

d2.9

d2.8

d2.8

d2.7

d2.6

d2.5

d2.4

Feb.

d2.2

d2.1

d2.0

d2.0

d2.0

d2.0

d2.0

d2.0

d2.0

2.0

2.0

2.0

7.5

5.5

4.6

5.5

4.6

2.9

2.0

2.0

3.4

25

14

15

16

11

12

7

_

_

-

Month

October. ...................................

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

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

Calendar year ...................

January. ...................................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

d5.5

d5

d4.8

d4.5

d4.2

d4.0

d3.8

d3.5

d3.2

2.9

4.6

4.6

3.4

5.5

65

26

17

14

12

dlO

d9

d8

d7

d6

d5

d4.7

d4.6

d4.5

d4.4

d4.4

d4.3

Apr.

d4.2

d4.2

4.6

5.5

4.6

7

6

5.5

5.5

7

23

10

7.5

8.5

6

4.6

8.5

9.5

6

7

6

11

10

8.5

5.5

4.0

4.0

5.5

4.6

a4.E

-

Secondfoot-days

6.6

58 . 0

100.3

212.3

162 . 3

265.4

208.0

52.8

5.8

3.2

.2

0

1,074.9

May

a3.8

a3.4

a3.2

a3.0

2.9

2.9

2.4

2.4

2.0

2.0

2.0

2.0

2.0

2.0

1.6

1.6

1.6

1.6

1.2

.9

.9

.9

.9

.9

.9

.9

.7

.7

.5

.5

.5

Maximum

4.7

15

11

54

25

65

23

3.8

.5

.2

.1

0

65

June

0.5

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Minimum

0

. 2

" c

2.4

2.0

2.9

4.0

.5

.1

0

0

0

0

July

0.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.1

.1

.1

.2

.1

.1

.1

.2

.1

.1

.1

.1

0

.1

0

.1

.1

.1

.1

0

0

Aug.

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

0.21

1.93

3 . " 24

5.85

5.80

B.56

6.93

1.70

'.10

.006

0

2.94

Sept.

Runoff in 

acre-feet

13

115

199

421

322

526

413

105

12

6.3

.4

0

2,130

a So gage-height record; discharge computed on basis of probable recession curve.

d Gage-height record doubtful; discharge computed on basis of seven discharge measurements, rair 

fall records, and records for nearby streams.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9. 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
24 SAN DIEGUITO RIVER BASIN 

Santa Ysabel Creek near Mesa Grande, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 33°07'15", long. 

116"48'30", In NEiNWi sec. 20, T. 12 S., R. 2 E., half a mile upstream from Black 

Canyon Creek and 4i miles southwest of Mesa Grande. Altitude of gage, about 2,000 

feet.

Drainage area.- 58 square miles.

Records available.- October 1936 to September 1942. December 1912 to September 1928 at 

site 1 mile upstream.

Average discharge.- 21 years (1913-28, 1936-42), 34.7 second-feet.

Extremes.- Maximum discharge during year, 408 second-feet Feb. 22 (gage height, 2.30 

feet), no flow July 30 to Aug. 8, Aug. 15 to Sept. 30.

1912-24, 1936-42: Maximum discharge, 21,100 second-feet Jan. 27, 1916, by slopearea method; no flow at times.

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

Small diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2.8

2.9

3.3

3.2

3.5

4.0

3.3

3.8

3.2

2.6

f2.4

a4.5

a4.0

a3.4

2.9

8.5

8.3

8.4

3.0

14

80

15

83

28

12

a9

a!3

a9

a!2

a8

f6

Nov.

6

6

6

5.5

4.8

4.6

4.8

4.2

4.5

4.5

4.2

34

13

7.5

6.5

6

7

14

11

8

7.5

7.5

7

7

7

7

7

7

7.5

7.5

-

Dec.

7.5

7.5

8

13

8.5

6.5

6.5

6.5

8

24

26

13

10

10

9

9

9

9

8.5

8.5

9

9

11

17

15

38

81

14

50

32

60

Jan.

186

68

55

46

34

32

29

89

88

26

83

23

21

20

18

18

18

16

15

14

13

14

15

15

15

14

14

14

14

13

13

Feb.

13

13

13

11

10

10

11

11

11

10

11

11

16

15

14

17

17

15

15

14

17

160

42

31

89

83

26

24

_

-

Mar.

24

21

21

21

20

18

17

16

16

16

84

24

24

36

113

42

34

29

26

24

24

24

24

31

29

28

24

24

83

83

21

Apr.

21

21

21

24

21

24

23

17

17

18

53

84

81

21

23

18

23

21

18

18

84

31

28

20

18

17

80

26

34

21

-

May

21

20

18

18

18

18

16

14

14

14

15

14

13

13

15

15

15

14

13

11

11

11

11

12

11

12

12

11

11

11

10

June

10

8.5

8

8

7

6

6.5

6.5

5.5

6.5

6.5

7

7

7

6.5

6.5

4.5

3.8

3.8

3.6

3.0

3.1

2.9

2.9

2.9

8.4

2.1

2.3

8.4

8.4

-

July

2.4

2.2

2.2

2.2

a2.0

al.8

fl.5

1.3

1.2

1.3

1.2

.9

.7

.9

1.2

1.0

.9

.9

1.0

.9

.9

.6

.3

.2

.1

.1

.1

.1

.1

0

0

Aug.

0

0

0

0

0

0

0

0

.1

.4

.3

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

Month

September. .................................

Water year 1941-42 ......................

Second 

foot-days

0

4,595.7

Maximum

0

186

Minimum

0

0

Mean

0

12.6

Runoff in 

acre-feet

454

42 * 290

0

9,120

Peak discharge.- Jan. 1 (9 a.m.) 310 sec.-ft.; Feb. 22 (6 a.m.) 408 sec.-ft.; Mar. 15 (3 p.m.) 

199 sec.-ft.

a No gage-height record; discharge interpolated or computed on basis of recorded range in stage 

and rainfall records.

f Discharge computed on basis of partly estimated gage-height.

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SAN DIEGUITO RIVER BASIN 25

San Dieguito River at Lake Hodges, Calif.

Location.- Lat. 33°02'55n , long. 117°07'25", In NWi sec. 18, T. 13 S., R. 2 W., at Lake 

Hoages Dam, 54 miles southwest of Escondldo. Altitude of bed of stream at dam, 200 

feet.

Drainage area.- 303 square miles.

Records available.- January 1916 to September 1942.

Average discharge.- 26 years, 57.8 second-feet.

Remarks.- Diversions for irrigation In San Pasqual Valley, above Lake Hodges. Some pumping rrom wells along river. Gaging station formerly maintained at dam site was discontinued In 1919, when Lake Hodges Dam was completed. Records of discharge represent flow Into Lake Hodges (capacity, 37,530 acre-feet), computed on basis of records 

of storage, release, leakage, spill, evaporation, and rainfall.

Cooperation.- Records furnished by city of San Diego.

Monthly discharge, water year October 1941 to September 1942

Month

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

Calendar year 1941. .......

September ...................

Water year 1941-42. .......

Mean 

(second-feet)

163

253

54 7

2 45

0

54.7

Runoff 

(acre-feet)

10,020

183,800

0

39,670

Time basis: Pacific standard time prior to 2 a.m., Feb. 

1942; Pacific war time thereafter. To convert war time to 

standard time, subtract 1 hour.

SAN UJIS REY RIVER BASIN 

San luls Rey 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 Nesa Grande.

Drainage area.- 209 square miles.

Records available.- October 1911 to September 1942.

Average discharge.- 31 years, 46.4 second-feet.

Remarks.- No diversions above station. Lake Henshaw Reservoir (capacity, 203,000 acrefeet) was completed In 1923, and gaging station formerly maintained 1 mile below dam 

was abandoned.

Cooperation.- Records furnished by San Diego County Water Co.

Monthly discharge, water year October 1941 to September 1942

Month

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

Calendar year 1941. ........

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

September. ...................

Water year 1941-42. . .......

Mean 

(second-feet)

OD rr

62.9

95.4

23 2

19 9

10.9

42.2

Runoff 

(acre-feet)

3,870

69,060

2 OSO

648

30,560

Time basis; Pacific standard time prior to 2 a.m., Feb. 

1942; Pacific war time thereafter. To convert w»r time to 

standard time, subtract 1 hour.

530350 O - 43 - 3
26 SAN LUIS KEY RIVER BASIN

San Luls Rey River near Bonsall, Calif.

Location.- Water-stage recorder, lat. 33°15'05", long. 117°14'55", in NEi sec. 1, T. 11 

 S., R. 4 W., three-quarters of a mile downstream from bridge on Fall Brook-Escondido 

road and 3 miles southwest of Bonsall. Altitude of gage, about 120 feet.

Drainage area.- 514 square miles.

Records available.- October 1929 to September 1942. July 1916 to September 1918 (gage 

heights and discharge measurements only) at site 3/4 mile upstream. April 1912 to 

January 1916 at site at Bonsall (records not equivalent).

Average discharge.- 13 years (1929-42), 44.1 second-feet.

Extremes.- Maximum discharge during year, 688 second-feet Mar. 15 (gage height, 2.39 

feet;: no flow several periods.

1929-42: Maximum discharge, 18,100 second-feet Mar. 3, 1938 (gage height, 12.60 

feet), from rating curve extended above 2,400 second-feet; no flow part of each year.

Remarks.- Records good. Storage at Lake Henshaw; several diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

6

6

7.5

6

6

6

5.5

4.9

4.9

3.5

3.5

11

12

9

8

8

9

11

13

25

33

36

73

65

42

29

29

34

27

29

22

Nov.

25

22

27

22

20

24

22

20

19

20

25

138

108

65

49

43

42

42

36

34

31

34

34

29

31

34

31

33

33

34

-

Dec.

33

31

36

40

34

33

31

31

49

118

110

67

58

52

52

47

45

45

42

40

36

34

38

38

43

62

60

60

267

171

183

Jan.

274

221

141

113

99

92

90

83

79

73

67

64

65

62

60

60

62

58

52

56

52

51

52

52

49

49

45

43

43

40

43

Feb.

45

46

42

45

45

42

38

34

36

34

33

34

36

42

42

36

36

36

36

36

54

288

190

99

85

73

71

92

-

_

-

Mar.

67

64

64

58

51

49

45

38

36

38

52

52

54

144

393

208

130

103

94

79

67

64

58

58

60

54

52

49

47

43

42

Apr.

43

45

VS.

45

49

49

43

40

34

43

125

94

67

60

58

54

60

56

47

45

51

64

56

49

45

43

38

45

47

47

-

May

38

40

34

29

29

29

27

25

20

20

20

20

19

18

16

18

16

16

14

11

10

9

6

6

- 7.5

7.5

6.5

6.5

7.5

6.5

6.5

June

7.6

6.6

7.5

7.5

7.5

7.5

7.5

6

6

5

6

6

6.5

6.5

7.5

4.5

3.4

4.5

4.5

4.5

2.8

1.6

1.6

1.2

.8

.8

1.0

1.2

1.6

2.4

-

July

2.4

1.6

1.2

1.0

1.0

.4

.4

.4

.4

1.2

1.0

1.0

.6

.3

.3

.2

.2

.1

.1

.1

.1

,1

0

0

0

0

0

0

0

0

0

Aug.

0

0

0

0

0

0

0

0

.1

.2

.1

.1

.1

.1

.1

.1

0

.1.1

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

.1

0

0

0

0

0

0

.2

.6

.4

.3

.4

-

Month

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

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

Water year 1941-42 ......... ............

Secondfoot-days

584.8

1,127

1,986

41,542.9

2,390

1,729

2,413

1,584

538.5

137.4

14.1

1.1

2.3

12,507.2

Maximum

73

138

267

1,560

274

288

393

125

40

7.5

2.4

.2

.6

393

Minimum

3.5

31

1.3

40

33

6

.8

0

0

0

0

Mean

18.9

64.1

114

61.8

52.8

17.4

4.58

.45

.04

.08

34.3

Runoff in 

acre-feet

1,160

3,940

82,400

4,740

3,430

1,070

273

28

2.2

4.6

24,820

Teak discharge.- Dec. 29 (11:30 a.m.) 380 sec.-ft,; Jan. 1 (4:30 p.m.) 321 ; 

(1:30 p.m.) 430 sec.-ft.; Mar. 15 (12;30 a.m.) 688 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942j Pacific 

To convert war time to standard time, subtract 1 hour.

ac.-ft.; Feb. 22 

far time thereafter.
SAN LUIS KEY RIVER BASIN £7 

San Luis Rey River at Oceanside, Calif.

Location.- Water-stage recorder, lat. 33°12'40", long. 117°22'40", in NW-i sec. 23, T. 

11 S., R. 5 W., half a mile upstream from State highway bridge at Oceanside. Altitude 

of gage, about 20 feet.

Drainage area.- 557 square miles.

Records available.- April 1912 to September 1914, January 1916, October 1929 to January 

1942 (discontinued).

Average discharge.- 14- years (1912-14, 1929-41), 37.7 second-feet.

Extremes.- Maximum discharge during period, 300 second-feet Jan. 2 (gage height, 6.70 

feet); no flow Oct. 1-23.

1912-14, 1916, 1929-42: Maximum discharge, 95,600 second-feet Jan. 12, 1916; no 

flow for several months of each year.

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

Storage at Lake Henshaw; several diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

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.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

aO

aO

aO

aO

a30

a22

a20

IB

19

19

19

19

Nov.

19

19

19

19

19

17

16

17

16

16

17

83

102

67

52

45

40

37

34

34

34

32

31

31

31

32

32

31

28

29

-

Dec.

29

29

31

35

34

31

28

28

35

69

116

82

67

61

54

52

4S

45

43

43

42

40

40

42

42

48

56

54

205

192

181

Jan.

344

262

177

132

116

105

97

86

84

76

72

65

-

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

-

Feb.

Month

October. ........ ..........................

Novembe r ...................................

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

Calendar year 1941 ......................

January 1-12. ................. ............

February .................... ... ..........

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

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

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

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

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

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

September .... ........ .................

The period ................ ..............

Mar. Apr.

Secondfoot-days

166

999

1,902

41,763.3

1,516

_

_

_

_

_

_

_

-

May

Maximum

30

102

205

1,320

262

_

_

^

_

_

^

_

_

-

June

Minimum

0

16

28

0

65

_

_

_

_

_

_

-

July Aug.

Mean

5.35

33.3

61.4

114

126

_

_

_

_

_

_

-

Sept.

Runoff in 

acre- feet

329

1,990

3,770

82,830

3,010

_

_

_

_

_

_

_

9,090

a No gage-height record; discharge computed on basis of recorded range in stage, rainfall records, 

and engineers' notes.

Time basis: Pacific standard time.
28 SANTA MARGARITA RIVER BASIN

Temecula Creek at Nigger Canyon, near Temecula, Calif.

Location.- Water-stage recorder, lat. 33°29'40", long. 116°59'00", In Pauba Grant, at 

upper end of Nigger Canyon, a quarter of a mile downstream from Arroyo Seco, and 10 

miles east of Temecula, Riverside County. Altitude of gage, about 1,350 feet.

Drainage area.- 319 square miles.

Records available.- January 1923 to September 1942.

Average discharge.- 19 years, 16.3 second-feet.

Extremes.- Maximum discharge during year, 142 second-feet Feb. 22; maximum gage height, 

 2.64 feet Dec. 29; minimum dally discharge, 2.7 second-feet Aug. 21, 22.

1923-42: Maximum discharge, 17,100 second-feet Feb. 16, 1927 (gage height, 19.5 

feet), by slope-area method; minimum, 0.6 second-foot Aug. 17, 1934.

Remarks.- Records good. No diversions above station.

Cooperation.- Ninety-one discharge measurements furnished by Santa Margarlta Ranch and 

Pauba Ranch.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

8

8

8.5

8.5

9

9

9

9

8.5

8.5

8.5

11

10

9.5

9

8.5

8.5

8.5

9.5

15

16

18

20

19

18

16

13

13

13

12

12

Nov.

12

13

13

13

13

12

12

12

12

12

12

25

25

23

21

19

16

15

15

14

13

12

12

12

12

13

14

15

14

14

-

Dec.

14

14

14

14

14

14

14

14

16

27

30

25

19

18

17

17

17

16

16

15

15

16

16

16

17

19

18

19

82

71

a80

Jan.

97

55

37

32

30

26

25

25

83

22

23

22

21

21

19

17

18

21

23

18

19

18

18

17

17

17

17

17

17

17

17

Feb.

17

18

18

18

17

17

17

17

16

15

15

15

18

18

17

16

16

16

16

17

20

72

39

36

34

30

30

26

-

-

-

Mar.

24

24

23

22

22

21

20

19

18

18

19

20

20

37

62

47

43

40

38

34

31

28

24

24

24

24

20

19

18

18

18

Apr.

18

17

17

17

a!8

a!8

a!9

a!9

a!8

a!7

a38

a22

a21

a20

a!9

a!9

19

18

17

17

18

19

20

18

17

17

17

17

17

16

-

May

16

16

16

15

15

14

14

14

13

13

13

13

13

13

12

12

12

12

12

11

11

9.5

9.5

9.5

a9.5

a9.5

a9.5

a9.5

9

9

9

June

9

8.5

9

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8

8

8

7.5

7

7

7

7

7

6.5

6

5.5

5.5

5.5

5.5

5.5

5

5

5

-

July

5

5

4.S

4.6

a4.2

3.8

3.8

3.6

3.6

3.8

4.0

4.1

4.0

4.5

4.3

4.1

4.1

4.1

4.0

4.0

3.8

3.5

3.3

3.5

3.5

3.3

3.3

3.3

3.5

3.6

3.8

Aug.

3.5

3.3

3.3

3.3

3.3

3.3

3.2

3.2

3.5

4.5

4.3

4.0

3.8

3.5

3.3

3.3

3.2

3.0

3.0

2.9

2.7

2.7

2.9

2.9

2.9

2.9

3.0

3.2

3.3

3.8

4.6

Sept.

5

5

5

4.6

4.5

4.3

4.1

4.1

1 4.3

4.5

4.3

4.1

4.3

4.1

4.0

4.0

4.1

4.0

3.8

3.6

3.5

3.3

3.3

3.3

3.3

3.3

3.5

4.U

4.1

4.1

-

Month

Mav

Water year 1941-42 ......................

Secondfoot-days

354.0

440

621

819

564

373.5

216.0

121.8

103.6

121.4

5,214.3

Maximum

20

25

97

62

38

16

9

5

4.6

5

97

Minimum

8

18

9

2.7

3.3

2.7

Mean

12.0

7.20

3.34

4.05

14.3

Runoff in 

acre feet

741

205

241

10,340

Peak discharge.- Dec. 29 (9 a.m.) 116 sec. -ft.; Feb. 22 

116 sec. -ft.

a No gage-height record; discharge computed on basis of 

ison with nearby stations.

Time basis: Pacific standard time prior to 2 a.m., Feb. 

To convert war time to standard time, subtract 1 hour.

(5 a.m.) 142 sec. -ft.; Mar. 14 (6 p.m.)

seven discharge measurements and compar9, 1942; Pacific war time thereafter.
SANTA MARGARITA RIVER BASIN 29 

Temecula Creek at Railroad Canyon, near Temecula, Calif.

Location.- Water-stage recorder, lat. 33°28'25", long. 117°08'35 n , in Temecula Grant at 

upper end of Temecula or Railroad Canyon, an eighth of a mile downstream from Murrieta 

Creek and li miles south of Temecula, Riverside County. Altitude of gage, about 950 

feet.

Drainage area.- 592 square miles.

Records available.- January 1923 to September 1942.

Average discharge.- 19 years, 29.6 second-feet.

Extremes.- Maximum discharge during year, 400 second-feet Feb. 22 (gage height, 1.88 

feet); minimum, 5.3 second-feet July 13.

1923-42: Maximum discharge, 27,600 second-feet Feb. 16, 1927 (gage height, 15.00 

feet), by slope-area method; minimum, 0.4 second-foot July 16, 1925.

Remarks.- Records good. Pumping diversions affect flow considerably during irrigation 

season.

Cooperation.- Gage-height record and discharge measurements furnished by Santa Margarita 

Ranch and Pauba Ranch.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

9.5

10

10

9.5

9.5

9.5

10

10

10

9

10

11

11

10

11

10

11

10

13

17

11

16

22

19

14

13

13

12

12

12

12

Nov.

14

12

12

14

12

13

11

11

12

12

13

43

16

14

14

14

15

14

12

12

12

13

13

13

12

12

14

14

13

13

-

Dec.

14

15

16

15

14

14

16

14

17

37

27

18

16

15

14

16

15

16

16

14

13

14

15

17

20

24

18

18

100

79

73

Jan.

116

85

45

39

41

32

34

35

27

27

25

24

25

24

21

22

23

23

21

20

18

21

20

20

20

21

23

19

19

18

19

Feb.

20

19

19

20

is

20

22

20

20

20

20

18

17

21

19

20

19

17

18

16

50

279

85

47

43

35

39

34

-

-

-

Mar.

30

29

30

24

23

21

20

21

20

20

25

27

24

39

175

67

56

49

39

37

32

32

27

29

27

25

21

21

21

22

23

Apr.

19

19

18

22

22

21

20

20

20

20

67

43

32

25

24

23

25

21

19

18

22

29

23

18

16

19

16

18

23

16

-

May

IS

17

14

13

13

13

14

14

14

12

11

13

11

12

12

11

10

11

11

10

10

12

12

12

12

11

10

11

11

11

10

June

9.5

12

12

11

10

13

12

10

12

11

11

11

11

10

10

12

11

10

11

11

10

8.5

10

10

11

9.5

11

10

9.5

8

-

July

9

9

9.5

9

9

9

6.5

7-5

7.5

9

9

7

6.5

7.5

8

7.5

8

7

7.5

7.5

8

8

7.5

6.5

7.5

7

6.5

6

6.5

6.5

7

Aug.

7.5

7

6.5

7.5

6.5

7.5

6.5

7.5

8.5

8

7.5

8

8

7.5

7.5

7.5

7.5

7.5

7

7.5

7.5

8

7

6.5

7.5

7

7

7.5

8

8.5

9

Sept.

9

9

9

8.5

8

7.5

7.5

7.5

8

8.5

8

7.5

7.5

8

8

8.5

8.5

8.5

8

8

8

8.5

8

8.5

8

8

8

8

7.5

8

-

Month

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

Water year 1941-42 ......................

Secondfoot-days

367

419

730

27,719.0

995

698

376

318.0

237.5

232.0

243.5

6,599.0

Maximum

22

43

100

2,540

116

279

67

13

9.5

9

9

279

Minimum

9.5

11

13

8.5

18

16

20

16

10

8

6

6.5

7.5

6

Mean

11.8

14.0

23.5

75.9

29.9

35.5

34.1

23.3

12.1

10.6

7-66

7.48

8.12

18.1

Runoff in 

acre feet

728

831

1,450

54,980

1,840

1,970

2,090

1,380

746

631

471

460

483

13,080

Peak discharge.- Feb. 22 (2 p.m.) 400 sec.-ft.; Mar. 15 (6 a.m.) 295 see.-ft.

Time baala; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

war time to standard time, subtract 1 hour.
30 SANTA MARGARITA RIVER BASIN

Santa Margarlta River near Fall Brook, Calif.

Location.- Water-stage recorder, lat. 33°24'35", long. 117°14'50", In NEi sec. 12, T. 9 

 5., R. 4 W., 2 miles north of Fall Brook. Altitude of gage, about 290 feet. Auxiliary 

water-stage recorder on opposite bank about 2,000 feet downstream.

Drainage area.- 645 square miles.

Records available.- November 1924 to September 1942.

Average discharge.- 17 years (1925-42) 39.8 second-feet.

Extremes.- Maximum discharge during year, 226 second-feet Mar. 15; maximum gage height, 

r.15 feet Feb. 22; minimum discharge, 4.0 second-feet July 31.

1924-42: Maximum discharge, 33,100 second-feet Feb. 16, 1927 (gage height, 15.6 

feet, upper gage) by slope-area method; minimum, 0.1 second-foot Aug. 30, 1925, Sept. 

4, 1926, Sept. 6, 1928, and at times during July and August 1929.

Remarks.- Records good. Several diversions above station.

Cooperation.- Gage-height record and 299 discharge measurements furnished by Santa 

Margarita Ranch and Pauba Ranch.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

13

13

12

12

13

13

13

14

13

d!3

d!3

19

17

16

14

13

14

14

d!4

22

24

26

34

36

28

24

22

22

19

19

19

Nov.

17

18

19

18

17

17

17

16

18

18

18

40

29

22

22

21

21

22

20

19

19

18

18

18

17

17

19

19

19

19

-

Dec.

19

18

20

20

18

18

18

19

22

41

46

31

26

24

23

22

23

22

22

21

21

20

21

23

23

36

30

24

97

86

81

Jan.

119

110

72

58

53

49

41

38

38

34

33

33

34

33

31

28

29

28

26

23

22

27

25

E7

28

30

29

26

25

25

24

Feb.

25

25

24

22

26

25

25

23

21

21

22

22

23

31

25

22

22

22

21

21

40

191

106

65

58

47

49

44

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

3,8

34

32

34

32

32

25

25

24

31

34

39

35

52

183

88

65

58

62

48

36

36

39

44

32

34

26

26

25

24

24

Apr.

23

24

24

30

27

25

31

24

25

26

75

58

43

34

30

31

34

30

24

20

25

35

31

25

21

21

21

25

27

21

Secondfoot-days

558

592

935

39,837.0

1,198

1,068

1,317

890

433

323.5

223.5

189.7

218.0

7,945.7

May

21

23

19

16

16

17

17

18

15

14

14

14

14

16

14

14

13

12

13

11

11

11

10

11

12

11

12

11

12

10

11

Maximum

36

40

97

2,990

119

191

183

75

23

12

10

9.5

8.5

191

June

11

11

12

10

11

12

12

12

11

12

12

11

11

11

12

10

11

11

11

10

10

10

9

9

9.5

10

11

11

11

9

Minimum

12

16

18

9

22

21

24

20

10

9

4.3

4.3

6

4.3

July

9

8.5

10

9

8.5

8

9

7

7

7.5

7

7

7

7

8

7

8.5

8

8.5

8.5

7

7.5

6

6.5

5

5.5

6.5

5

5.5

4.7

4.3

Aug.

5

5

5.5

5

5.5

4.9

5

4.3

8.5

9.5

7.5

7

7

6

6.5

6.5

6

6.5

6

5.5

6

6

6

6

5.5

6

6

6

5.5

6.5

7.5

Mean

18.0

19.7

30.2

109

38.6

38.1

42.5

29.7

14.0

10.8

7.21

6.12

7.27

21.8

Sept.

8

8

7.5

7.5

7

7.5

7.5

8

7

7

8

7.5

7

7

6.5

6.5

7.5

7.5

7.5

6.5

6

7.5

6.5

6.5

6.5

7.5

7.5

7

8.5

8

-

Runoff in 

acre- feet

1,110

1,170

1,850

79,010

2,380

2,120

2,610

1,770

859

642

443

376

432

15,760

Peak discharge.- Feb. 22 (5 p.m.) 223 sec.-ft.; Mar. 15 (10 a.m.) 226 sec.-ft. 

d Hags-height doubtful; discharge interpolated.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA MARGARITA RIVER BASIN 31

Santa Margarlta River at Ysidora, Calif.

Location.- Water-stage recorder, lat. 33°14'40", long. 117°22'50", in Santa Hargarita Y 

Las Flores Grant, 1 mile downstream from Ysidora, San Diego County, and about 2 miles 

upstream from mouth. Altitude of gage, about 15 feet.

Drainage area.- 740 square miles.

Records available.- February 1923 to September 1929, October 1930 to September 1942.

Average discharge.- 14 years (1927-29, 1930-42), 49.7 second-feet.

Extremes.- Maximum discharge during year, 212 second-feet Feb. 23 (gage height, 7.50 

feet); no flow for several monthsi.

1923-29, 1930-42: Maximum discharge, 53,600 second-feet Feb. 16, 1927, by slopearea method; no flow during part of most years.

Remarks.- Records fair. Considerable water diverted above station for irrigation on 

Santa Margarita Ranch and Pauba Ranch. (See p. 33 for records of O'Neill ditch near 

Ysidora.)

Cooperation.- Gage-height record and 204 discharge measurements furnished by Santa 

hargarlta Ranch and Pauba Ranch.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

0

0

0

0

.8

3.2

2.6

2.1

1.4

.9

4.8

5.5

5.5

5.5

5.5

4.0

3.2

4.0

S.5

30

39

51

64

34

28

26

24

Z*

20

18

Nov.

18

17

17

17

17

15

15

15

15

15

16

52

53

38

29

24

24

22

22

22

20

20

22

20

17

18

20

20

20

20

-

Dec.

18

20

22

36

29

27

22

20

33

68

92

65

51

42

31

31

31

33

29

29

27

27

27

29

31

56

62

53

153

165

155

Jan.

161

180

127

98

82

80

76

70

56

53

48

48

45

42

45

38

38

38

38

36

33

36

33

33

33

33

36

36

33

33

33

Feb.

29

27

29

29

27

31

31

31

29

29

24

24

24

29

29

27

27

29

24

24

33

158

172

108

76

65

55

53

.

-

-

Mar.

45

42

42

38

40

36

33

29

27

27

36

40

36

51

151

134

98

76

74

62

51

40

40

42

40

40

33

29

31

31

24

Apr.

24

29

24

24

29

33

33

33

31

29

59

76

56

42

38

38

38

38

31

30

31

42

38

33

24

22

24

27

29

29

-

May

27

22

17

14

15

12

15

15

12

15

14

11

9.5

9.5

11

9.5

11

11

7.5

6.5

6

6.5

5

6

6

4.4

5

3.8

3.3

2.9

3.3

June

3.3

2.9

2.9

2.9

2.9

3.3

3.3

2.9

2.9

2.5

2.9

2.9

2.5

2.1

1.8

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

July Aug. Sept.

Month

Calendar year 1941 ......................

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

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

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

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

Water year 1941-42 ......................

Secondfoot-days

660

57,492.7

1,771

1,273

1,518

1,034

316.7

42.0

0

0

8,540.2

Maximum

53

165

3,770

180

172

151

76

27

3.3

0

0

0

180

Minimum

15

18

0

33

24

24

22

2.9

0

0

0

0

0

Mean

13.?

22.0

48.8

158

57.1

45.5

49.0

34.5

10.2

1.4

0

0

0

23.4

Runoff in 

acre feet

816

1,310

3,000

114,000

3,510

2,520

3,010

2,050

628

83

0

0

0

16,930

Peak discharge.- Jan. 2 (8 a.m.) 197 

203 sec.-ft.

Time basis; Pacific standard time prior t 

To convert war time to standard time, subtract 1 hour.

.-ft.; Feb. 23 (2 a.m.) 212 sec.-ft.; Mar. 15 (11 p.m.) 

Feb. 9, 1942; Pacific war time thereafter.
32 SANTA MARGARITA RIVER BASIN 

Murrieta Creek at Temecula, Calir.

Location.- Water-stage recorder, lat. 33°29'00", long. 117°08'50", in Temecula Grant, 

0.6 mile upstream from Temecula Creek and half a mile south of Temecula, Riverside 

County. Altitude of gage, about 1,050 feet.

Drainage area.- 220 square miles.

Records available.- October 1930 to September 1942.

Average discharge.- 12 years, 13.9 second-feet.

Extremes.- Maximum discharge during year, 54 second-feet Feb. 22 (gage height, 1.59 feet); 

minimum daily, 0.3 second-foot Sept. 6.

1930-42: Maximum discharge, 16,800 second-feet (estimated) Mar. 2, 1938 (gage 

height, 13.7 feet) present site and datum; minimum, 0.2 second-foot at times during 

1931, 1933, 1934, and 1935.

Remarks.- Records good. No appreciable diversions above station.

Cooperation.- Gage-height record and discharge measurements furnished by Santa Margarita 

and Pauba Ranches.

Discharge, in second-feet, water year October 1941 to September' 1942

Day

1

2

3

4

5

6

7

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.

1.0

1.1

1.1

1.1

1.1

1.3

1.3

1.1

1.1

1.1

1.1

1.6

1.4 

1.2

1.1

1.1

1.1

1.3

1.4

1.8

1.9

2.2

3.9

7

2.3

1.9

1.7

1.7

1.6

1.6

1.6

Nov.

1.6

1.7

1.8

1.7

1.6

1.8

1.6

1.6

1.6

1.8

1.9

4.8

2.7 

2.1

1.9

1.9

2.1

1.9

1.7

1.7

1.7

1.8

1.7

1.6

1.6

1.7

1.8

1.9

1.8

1.8

-

Dec.

1.8

1.8

2.1

2.3

2.2

1.9

1.8

1.8

2.6

6.5

7.5

3.8

2.4

2.1

2.6

2.4

2.4

2.2

2.4

2.4

2.3

2.4

2.8

2.8

6

3.8

3.4

12

9

9

Jan.

10

11

7

5

3.8

3.4

3.6

3.4

3.4

3.3

3.1

3.0

3.3 

3.0

3.3

3.0

3.1

3.0

2.8

2.8

2.6

2.7

2.7

2.8

2.8

3.0

2.8

2.S

2.7

2.6

2.6

Feb.

2.6

2.7

2.6

2.4

2.3

2.3

2.4

2.4

2.4

2.4

2.4

2.4

2.4 

2.7

2.6

2.4

2.3

2.6

2.3

2.2

7

35

10

6.5

5.5

4.3

4.3

4.1

-

-

-

liar.

3.3

3.1

3.1

2.8

2.7

2.8

2.7

2.6

2.7

2.6

3.3

3.0

5.5

16

7

4.4

3.8

3.4

2.8

2.4

2.3

2.3

2.4

2.2

2.1

1.9

l.S

1.8

1.8

1.8

Apr.

1.7

1.6

1.6

1.6

1.6

2.3

2.8

2.1

1.8

2.3

10

6

3.3

2.8

2.4

2.6

2.4

2.1

1.8

2.2

2.8

2.4

1.9

1.7

1.6

1.6

1.6

1.9

1.6

-

May

1.5

1.5

1.3

1.3

1.1

1.2

1.2

1.5

1.6

1.7

1.5

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.0

1.2

1.5

al.4

al.4

al.5

1.4

1.2

1.3

1.1

1.1

1.1

June

1.1

1.1

1.1

1.1

1.0

1.4

1.3

1.1

1.2

1.1

1.1

1.1

.9

.9

.9

.9

.8

1.1

1.1

1.1

1.1

1.1

.9

1.1

1.1

1.2

1.2

.9

.9

-

July

0.8

.9

.9

1.0

.9

.8

.S<

.S

.8

1.0

.9

.8

.8 

.8

.9

.8

.9

.9

.9

.8

.7

.6

.6

.6

.6

.5

.5

.5

.4

.5

.5

Aug.

0.4

.5

.6

.6

.6

.5

.4

.4

.4

.6

.5

.4

.4

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.6

Sept.

0.6

.6

.5

.6

.5

.3

.4

.6

.6

.6

.6

.6

.6 

.6

.6

.7

.6

.6

.6

.6

.&

.6

.6

.7

.6

.6

.8

.S

.7

.7

-

Month

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

Water year 1941-42 . . ...................

Secondroot-days

51.8

56.9

111.3

13,976.8

114.4

125.5

103.1

76.3

39.6

31.9

23.2

14.6

18.0

766.5

Maximum

7

4.8

12

2,150

35

16

10

1.7

1.4

1.0

.6

.8

35

Minimum

1.0

1.6

1.8

.9

2.6

2.2

1.8

1.6

1.0

.8

.4

.4

.3

.3

lie an

1.67

1.90

3.59

38.3

3.69

4.48

3.33

2.54

1.28

1.06

.75

.47

.60

2.10

Runoff in 

acre-feet

103

113

221

27,720

227

249

204

151

79

63

46

29

36

1,520

Peak discharge.- Feb. 22 (1 a.m.) 54 sec,-ft.; Mar. 15 (2 a.m.) 23 sec.-ft. 

a Ho gage-height record; discharge computed on basis of two discharge measurements. 

Tic"? basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA MARGARITA RIVER BASIN 33

O'Nelll ditch near Ysldora, Calif.

Location.- Water-stage recorder, lat. 33°19'40", long. 117 0 19'45", 100 feet upstream 

from point of discharge Into O'Nelll Reservoir and 6 miles northeast of Ysldora, San 

Diego County.

Records available.- October 1930 to September 1942. 

Average discharge.- 12 years, 3.02 second-feet.

Extremes.- Maximum dally discharge during year, 20 second-feet Oct. 13; no flow for 

several months.

1950-42: Maximum dally discharge, 35 second-feet May 24, 1937; no flow during 

parts of each year.

Remarks.- Ditch diverts water from Santa Margarlta River.

Cooperation.- Records furnished by Santa Margarlta Ranch and Pauba Ranch.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

9.5

9.5

9.5

10

10

11

11

11

12

11

11

16

20

15

13

12

12

12

14

15

0

0

0

0

0

0

0

0

0

0

0

Nov. Dec. Jan. Feb. Mar. Apr. May June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

5.5

10

8

S

7.5

6.5

.5

-

July

7.5

7

7

7

6

5.5

5

4.4

4.1

4.3

4.7

4.4

4.4

4.2

4.1

4.0

4.4

4.9

4.9

4.9

4.9

4.8

4.6

4.1

3.7

3.6

3.6

3.9

4.0

3.9

3.6

Aug.

3.3

3.3

3.4

3.5

3.7

3.5

3.2

3.1

4.3

7.5

6.5

5

5

4.8

4.6

4.7

4.8

4.4

4.4

4.2

4.1

4.7

4.7

4.7

4.2

4.3

3.9

4.4

4.8

5.5

6

Sept.

7.5

8

7.5

7.5

7

6.5

6.5

6

6

6.5

6.5

6.5

6.5

6

6

6

6.5

7

7

7

6

5.5

6.5

5.5

6

6.5

7

7.5

7.5

7.5

-

Month

Water year 1941-42 ......................

Secondfoot-days

0

0

0

95.1

147.4

138.5

825.0

Maximum

10

7.5

7.5

20

Minimum

3.6

3.1

0

Mean

3.17

4.75

4.47

2.26

Runoff in 

acre-feet

0

1S9

292

275

396

1,640

Time baa is: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
34 SAN JUAII CREEK BASIN

San Juan Creek near San Juan Caplstrano, Calif.

Location.- Water-stage recorder, lat. 33°30'50", lone. 117°37'40", in Mission Viejo Grant, 

at Ortega State !Iighway bridge, 2j miles east of San Juan Capistrano, Orange County. 

Altitude of gage, about 150 feet. Prior to Dec. 17, 1941, at datum 2.0 feet higher.

Drainage area.- 110 square miles.

Records available.- October 1928 to Septenber 1942.

Average discharge.- 14 years, 17.1 second-feet.

Extrenes.- Maximum discharge during year, 21 second-feet Mar. 15 (gage height, 1.20 feet); 

no flow Sept. 24.

1929-42: Maximum discharge, 13,000 second-feet Mar. 2, 1938, by slope-area r.iethod, 

deterr.iined by Corps of Engineers, U. S. Army; no flow at tines during most surmers.

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

Cooperation.- Fifty-six discharge measurements furnished by Orange County Flood Control 

District, through A. A. Beard, flood control engineer.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

SO 

31

Oct.

1.4 

1.6 

1.7 

1.7 

1.8

1.6 

2.0 

2.0 

2.3 

2.5

2.5 

2.0 

1.8 

1.8 

1.7

1.7 

1.8 

1.8 

2.2 

3.1

3.5 

6 

8 

6.5 

6

5.5

5 

5.5 

5.5 

5.5 

5

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

Nov.

5 

5 

5 

5 

5.5

5.5 

5 

5 

5.5 

5.5

5.5

8 

6.5 

6 

4.7

4.0 

5 

5.5 

5.5 

5.5

5 

4.7 

5 

5.5 

5.5

5.5 

5.5 

5.5 

4.5 

4.2

Dec.

3.7 

3.5 

4.0 

4.7 

4.2

4.0 

3.7 

3.3 

4.0 

14

10 

7.5 

.6.5 

*6 

5.5

6.5 

7 

6.5 

6 

5

4.7 

5 

5.5 

6.5 

7.5

12 

6 

6

7.5 

8.5 

9

Jan.

14 

10 

6 

4.8 

4.2

4.2 

4.8 

5.5 

5.5 

4.8

5.5 

5.5 

4.8 

5.5 

5.5

5.5 

6 

6 

6 

6

5.5 

6 

5.5 

5.5 

5.5

5.5 

6 

6 

6 

6 

6

Feb.

6 

5.5 

6 

6

7

7 

7.5 

7 

4.8 

4.8

2.2

2.5 

2.8 

3.8 

3.8

3.8 

3.3 

2.5 

2.2 

.9

1.9 

6 

4.2 

3.3 

3.8

3.8 

4.8 

4.2

Month

mbe r ...................................

lendar year 194 

ary

1. .....................................

ter year 1941-42. .....................

Mar.

4.2

4.8 

6 

6 

4.2

3.S 

4.2 

5.5 

6 

6

7 

7 

6 

9 

17

9 

7 

6 

5.5 

5.5

5.5 

5.5 

6 

6 

6

4 2

3 8 

4 2 

- 4 8 

4 8 

4 8

Apr.

Secondfoot-days

101.0 

159.1 

193.8

25,229.0

183.6 

121.4 

185.3 

187.2 

97.8 

31.3 

16.5 

8.2 

6.9

1,292.1

4.2 

1.4 

1.2 

2.2 

3.3

4.8 

3.8 

2.8 

2.6 

4.2

16 

10 

8.5

8.5 

7.5

7.5 

8.5 

7.5

7.5 

7*5

7.5 

7.5 

7.5 

7 

6

4.8 

6

7 

7 

7.5

May

7 

7 

5.5 

5.5 

5.5

4.8 

4.8 

4.2 

3.8 

3.3

3.8 

4.2 

3.3 

3.8 

4.2

4.2 

4.2 

3.8 

1.6 

.9

.7 

.8 

.8 

1.1

1.2

1.2

1.2 

1.1 

1.6 

1.6 

1.1

Maximum

8 

8

14

1,380

14 

7.5 

17 

16 

7 

1.6 

1.6 

.5 

.5

17

June

o.s

.8 

.S 

.9 

1.1

1.1 

1.2 

1.1 

1.1 

1.2

.9 

.8

.8 

.9

.8 

1.1 

1.2 

1.1 

1.2

1.4 

1.6 

1.2 

1.2 

1.2

1.1 

.8 

1.1 

1.2 

.9

Minimum

1.4 

4.0 

3.3

1.0

4.2 

.9 

3.8 

1.2 

7 

.7 

.1 

.1 

.1

.1

July

0.8 

.7 

.8 

1.1 

1.6

1.6

1.2

.7 

.7 

.7

.7 

1.1

.4

.4

.4 

.3 

.2

.1 

.2

.5 

.3

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Aug.

0.1 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.S 

.4

.S 

.4

.S

.5

.5 

.5 

.3 

.3 

.2

.2 

.2 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2 

.3

Mean

3.26 

5.30

6.25

69.1

5.92 

4.34 

5.98 

6.24 

3.15 

1.04 

.53 

.26 

.23

3.54

Sept.

0.2 

a. 2 

a. 2 

a. 2 

a. 2

a.S 

a. 4 

f.S 

.2 

.2

.2 

.3

.2 

.3

.4

.5 

.Z

.1 

.1

.1 

.2

.1 

.1 

.1

.2

.3 

.5 

.5 

.2

Runoff in 

acre- feet

200 

316 

384

50,000

364 

241 

36S 

371 

194 

62 

33 

16 

14

2,560

Peak discharge.- Jan. 1 (12 m.) 17 aec.-ft.; Mar. 15 (8 a.m.) 21 aec.-ft.; Apr. 11 (9 a.m.) 20 

sec.-ft.

a No isage-heiRht record; discharge Interpolated or computed on basis of recorded range In stage.

f Computed on basla of partly estimated gage-height record.

Time baala! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, suttract 1 hour.
SAN JUAN CREEK BASIN 35

Trabuco Creek near San Juan Caplstrano, Calif.

Location.- Water-stage recorder, lat. 33°31'30", long. 117°40'15", In SWi sec. 25, T. 7 

S., R. S W., on State highway bridge, li miles north of San Juan Capistrano.

Drainage area.- 36.5 square miles.

Records available.- October 1930 to September 1942.

Average discharge.- 12 years, 8.C4 second-feet.

Extremes.- 1940-41: Maximum discharge during water year 876 second-feet, Feb. 21 

" (gage he 1 glit, 3.70 feet). (Only maximum daily discharge published in Water-supply 

Paper 931.)

1941-42: Maximum dally discharge during water year, 2.5 second-feet Apr. 13; no 

flow during part of year.

1930-42: Maximum discharge, 9,240 second-feet Feb. 6, 1937; no flow during part 

of each year.

Cooperation.- Records furnished by Orange County Flood Control District, through A. A. 

Beard, flood control engineer.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

1?

13

14

15

17

1R

19

20

21

22

23

24

25

26

27

2R

29

30

31

Oct. Nov. Dec.

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

0

0

0

Jan.

0

0

0

0

0

.2

.4

.6

.8

1.0

1.1

1.2

1.2

Feb.

1.3

1.3

1.3

1.3

1.3

1.3

1.2

1.2

1.2

1.2

1.2

1.1

1.1

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

1.3

1.3

1.3

1.3

1.3

1.1

.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

-

-

-

Month

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

February. . .

Apri 

Hay

July 

Augu 

Sept

Water year 1941-42 ......................

Mar.

0.8

.8

.7

.7

.6

.6

.6

.6

.5

.6

Apr.

0.6

.6

.7

.8

.9

1.0

1.2

1.5

1.7

1.9

.6 2.1

.6; 2.3

.71 2.5

.a

.9

.9

.8

.8

.8

.7

.6

.6

.6

.6

.5

.5

.5

.5

.5

.6

2.3

2.1

1.7

1.5

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

~

Secondfoot-days

0

0

.3

11,656.08

28.6

29.5 

SO. 6

41.8 

36.6

15.0

0 

0 

0

172.40

May

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.

Maximum

0

0

.3

536

1.3

1.3 

1.0

2.5

1.3

1.2

0 

0 

0

2.5

2

June

1.2

1.2

1.2

1.1

1.0

1.0

1.0

1.0

1.0

.9

.9

.8

.7

.5

.4

.3

.2

.1

.1

.1

0

0

0

0

0

0

0

0

0

"

Minimum

0

0

0

0

0

.8 

.5

.6 

1.1

0

0 

0 

0

0

July

I

Aug.

Mean

0

0

.01

31.9

.92

1.05 

.66

1.39 

1.18

.50

0 

0 

0

.47

Sept.

Runoff in 

acre-feet

0

0

.6

23,110

57

59 

41

83 

73

30

0 

0 

0

344

Time baalat Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

convert war time to standard time, subtract 1 hour.
36 ALISO CREEK BASIN

Aliso Creek at El Tore, Calif.

Locatlpn.- Water-stage recorder, lat. 33°37'15", long. 117°41'20", In Canada de Los Allsos 

Grant, on Second Street Bridge, at El Toro, Orange County. Altitude of gage, about 440 

feet.

Drainage area.- 8.5 square miles.

Records available.- October 1930 to September 1942.

Average discharge.- 12 years, 1.04 second-feet.

Extremes.- 1940-41: Maximum discharge during water year, 633 second-feet Mar. 1 (gage 

height, 8.70 feet). (Only maximum daily discharge published In Water-Supply Paper 

931 J

1941-42: Maximum discharge during water year, 20 second-feet Apr. 11 (gage 

height, 5.80 feet); no flow most of year.

Cooperation.- Records furnished by Orange County Flood Control District, through A. A. 

Beard, flood control engineer.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec.

0

0

0

0

0

0

0

0

0

.8

.2

.1

.1

0

0

0

0

0

0

0

0

0

0

0

.1

.2

0

.1

1.8

1.8

1.8

Jan.

2.0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb. Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

4.0

.2

0

.2

0

0

0

0

0

0

.2

0

0

0

0

0

0

0

0

0

-

May June July Aug. Sept.

Month

Water year 1941-42 ......................

Secondfoot-days

0

0

7.0

1,251.0

2.2

0

.1

4.6

0

0

0

0

0

13.9

Maximum

0

0

2.0

0

.1

4.0

0

0

0

0

0

4.0

Minimum

o

0

0

0

0

0

0

0

0

0

0

0

0

Mean

0

0

.07

0

.003

.15

0

0

0

0

0

.04

Runoff in 

acre feet

0

0

4.4

0

9.1

0.

0

0

0

0

28

Time basts; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 37

Santa Ana River near Mentone, Calif.

Location.- Water-stage recorder, lat. 34°06'40", long. 117°06'00", in SWi sec. 4, T. 1 S., 

R. 2 W., near mouth of canyon, 0.4 mile upstream from Southern California Edison Co.'s 

Mentone power plant and 3i miles northeast of Mentone. Altitude of gage, about 1,900 

feet. Auxiliary water-stage recorder at Greenspot Bridge, about 1 mile downstream.

Drainage area.- 189 square miles.

Records available.- July 1C96 to September 1942.

Average discharge.- 44 years (1896-1909, 1910-15, 1916-42), 39.7 second-feet. Average 

combined discharge of Santa Ana River and canals, 41 years (1896-98, 1902-15, 1916-42),

02.3 second-feet.

Extremes (river only).- Maximum discharge during year, 134 second-feet Apr. 4 (gage 

height, 4.95 feet); minimum daily discharge, 0.1 second-foot many days.

1896-42: Maximum discharge, 52,300 second-feet Mar. 2, 1938, by slope-area nethod; 

no flow at times in several years'.

Remarks.- Records good. Storage at Bear Valley Reservoir and diversions above station. 

Sum of discharge of river, Southern California Edison Co.'s canal, and Greenspot pipe 

line near Mentone, is given in table on following page.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.5

.6

.7

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

.7

.8

.8

.7

.7

1.0

14

4.2

6

4.7

4.6

2.7

2.4

2.4

2.6

2.4

1.9

1.9

Nov.

2.2

2.4

2.2

2.6

2.9

3.3

3.1

3.1

3.3

3.3

3.3

6

4.0

3.5

3.5

3.5

3.7

3.5

3.6

3.5

3.5

3.3

3.1

2. 9

2.7

2.0

1.8

1.6

1.5

1.3

-

Dec.

1.2

1.2

3.8

9

3.3

2.4

2.0

2.0

3.5

22

16

5.5

4.7

4.0

7.3

3.1

2.9

2.9

3.1

3.3

4.5

4.2

4.7

6

4.7

11

9

8

15

18

20

Jan.

24

16

12

11

9.5

8.5

8.5

8.5

8

7.5

7

6.5

6

7.5

6

6

5.5

5.5

5.5

5

5

5

4.7

4.2

4.2

4.2

4.2

4.5

4.5

4.2

4.2

Feb.

3.7

3.7

3.7

3.7

3.5

3.5

3.5

3.5

3.3

3.1

2.9

2.6

2.2

2.0

1.8

1.6

1.5

1.5

1.6

1.4

1.6

7.5

4.7

4.0

4.5

2.9

? . 1

2.6

_

-

-

Month

October. ...................................

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

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

Calendar year 1941 ............... ......

January ..... ..... ................. ......

February. ....... ........ ...... ... .....

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

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

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

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

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

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

September. . . . ................. ...... ...

Water year 1941-42 ......................

Mar.

2.6

2.6

2.6

2.6

2.7

2.7

2.7

2.6

2.2

1.9

3.1

3.5

2.9

4.7

8.5

7

6

5.5

5.5

5

4.7

4.2

4.2

5

4.2

4.2

4.0

3.5

3.1

2.9

2.7

Apr.

2.7

2.7

2.7

79

93

85

78

74

71

74

53

9

6.5

5.5

5

5

5

4.5

3.7

3.7

4.7

6

4.7

4.2

4.0

4.0

3.7

6

8

6

-

Secondfoot-days

64.0

90.1

204.3

16,109.1

222.9

119.6

714.3

161.2

21.2

11.1

5.5

3.6

1,702.9

May

5.5

4.7

4.5

4.0

3.7

2.9

2.2

1.9

10

20

20

20

20

13

4.5

2.9

2.2

2.0

1.8

1.6

1.5

1.4

1.4

1.4

1.3

1.3

1.2

1.2

1.1

1.0

1.

Maximum

14

6

22

410

24

7.5

8.5

93

20

.9

.4

.2

.2

93

0

June

0.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.8

.7

.7

.7

>7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

-

Minimum

0.5

1.3

1.2

.4

4.2

1.4

1.9

2.7

1.0

.5

.3

.1

.1

.1

July

0.'

".3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Mean

2.06

3.00

6.59

44.1

7.19

3.04

3.86

23.8

5.20

.71

.36

.18

.12

4.67

Sept.

0.2

.2

.2

.1

.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

~

Runoff in 

acre-feet

127

179

405

31,950

442

169

237

1,420

320

42

22

11

7.1

3,380

discharge.- Apr. 4 (l p.m.) 134 sec.-ft.; Apr. 10 (10 p.m.) 102 sec.-ft. 

basis : Pacific standard tiir.e prior to 2 a.m., Feb. 9, 1942; Pacific war 

vert war tiir.e to standard time, subtract 1 hour.

time thereafter.
SANTA ANA RIVER BASIN

discharge, in second-feet, of Santa Ana River and canals near Nentone, Calif. 

water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

85

85

85

85

79

77

77

79

79

82

79

74

71

70

71

71

74

74

87

72

79

75

80

71

67

67

66

66

63

63

Nov.

63

63

60

59

53

56

53

56

53

56

56

80

65

62

56

52

52

56

56

54

54

53

51

53

53

58

68

66

62

59

-

Dec.

65

65

74

71

60

62

70

70

76

92

76

66

59

61

58

58

58

58

58

56

60

57

58

56

55

69

59

51

89

87

83

Jan.

82

77

67

69

62

64

64

66

69

68

68

7C

72

74

72

69

66

64

64

63

60

60

60

59

59

59

59

60

60

57

57

Feb.

54

54

54

51

50

54

50

50

41

49

52

57

53

53

48

51

52

52

56

55

69

88

59

58

62

57

60

60

-

_

-

Mar.

60

60

60

60

57

49

57

57

59

61

65

62

60

64

66

72

71

72

70

64

66

65

65

66

63

62

59

62

58

63

63

Apr.

66

66

66

100

93

85

78

74

71

74

89

83

82

80

78

78

78

78

74

74

75

84

78

71

74

74

74

76

83

76

-

May

76

7C

70

66

66

70

72

64

67

79

70

80

77

70

80

76

75

78

72

67

56

69

77

77

77

74

77

74

79

77

77

June

71

63

69

71

69

71

69

77

74

69

71

79

77

79

74

71

71

74

66

69

77

71

71

71

77

71

70

70

74

78

-

July

76

76

81

76

73

76

81

78

78

76

81

81

81

81

81

61

76

76

70

70

70

73

73

70

73

76

78

78

76

78

78

Aug.

76

78

76

84

84

81

76

68

76

81

78

01

78

81

81

84

84

Gl

78

73

70

73

70

73

73

78

76

76

86

81

78

Sept.

76

78

78

70

70

73

70

70

73

76

76

73

73

76

76

81

76

73

68

68

70

78

73

73

73

76

76

81

81

78

-

Month

May

Water year 1941-42 ......................

Secondfoot-days

2,229

2 ^13

25,404

Maximum

87

80

92

100

Minimum

63

51

55

39

57

49

64

41

Mean

75.1

57.9

66.0

119.0

65.2

62.5

73.2

69.6

Runoff in 

acre-feet

4,620

3,450

4,060

86,140

,010

,070

,840

,630

,500

,290

,700

,790

,430

50,390

Time basis; 

To convert war

Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

time to standard time, subtract 1 hour.
SANTA ANA RIVER RASIN 39

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

Location.- Water-stage recorder, lat. 34°04'00", long. 117°17'45", in San Bernardlno 

Grant, at E Street Bridge, about half a mile downstream from San Timoteo Creek, 1 

mile upstream from Warm Creek, and 3 miles south of San Bemardino, San Sernardino 

County. Altitude of gage, about 970 feet. ' (

Records available.- March 1939 to September 1942.

Extremes.- Maximum discharge during year, 160 second-feet Dec. 10 (gage height, 4.92

feet); maximum gage height, 5.00 feet Apr. 11; no flow July 9-13, July 22 to Sept. 17.

1939-42: Maximum discharge, 3,420 second-feet Dec. 24, 1940 (gage height, 5.30 

feet); no flow on many days each year.

Remarks.- Records fair. Several diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.1

.1

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.4

.2

.2

.4

.2

.2

9.5

7.5

18

f7

7.5

8.5

9.5

11

6

5.5

5.5

5

Nov.

3.9

3.9

3.9

3.9

5.5

5.5

4.4

3.4

3.4

3.9

6

6

6

5.5

6

6

6

5.5

5

4.4

4.4

4.4

3.4

3.4

3.4

2.1

2.1

2.1

2.1

-

Dec.

1.7

1.7

3.9

3.4

2.9

2.5

3.9

3.9

9.5

39

11

10

10

9.5

°.5

10

fl.5

5.5

7

4.4

7

7

12

13

17

20

13

10

12

18

17

Jan.

20

12

Feb.

5

4.4

10 I 4.4

6

5.5

5

3.9

3.9

3.9

3.9

3.9

5.5

7

7.5

18

20

20

20

22

34

42

47

44

25

25

25

13

12

6

4.4

5

4.4

4.4

3.9

3.9

3.9

3.9

3.4

2.5

2.1

1.4

1.4

1.1

1.4

.9

.7

.5

.4

1.1

6

1.4

1.7

1.1

.9

.7

.7

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February ...................................

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

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

Bay.... ....................................

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

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

Auguet .....................................

September. ... . .... .....................

Water year 1941-42 ......................

Mar.

0.7

.5

.7

.4

.4

.5

.4

.4

.5

1.4

2.9

2.5

2.5

13

6

 19

22

20

19

18

20

17

9.5

7.5

9.5

4.4

3.9

1.7

1.7

1.4

1.1

Apr.

1.1

.7

1.1

12

17

5.5

1.1

.9

.4

3.4

14

13

13

12

9.5

10

10

6

5.5

7

9.5

10

12

2.1

1.7

1.1

.7

.5

.7

.4

Secondfoot-days

103.7

129.4

303.8

19,445.2

480.4

67.6

208.5

181.9

4.3

3.0

1.6

0

1.9

1,486.1

-

May

0.4

.2

.2

.1

.1

.1

.1

.1

.2

.2

.2

.4

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Maximum

18

6

39

666

47

6

22

17

.4

.1

.1

0

.2

47

June

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

July

0.1

.1

.1

.1

.1

.1

.1

.1

0

0

0

0

0

.1

.1

.1.1

.1

.1.1

.1

0

.1 ' 0

 1 . 0

.1

.1

.1

.1

.1.1

-

Minimum

0.1

2.1

1.7

.1

3.9

.4

.4

.4

.1

.1

0

0

0

0

0

0

0

0

0

0

0

Aug.

Mean

3.35

4.31

9.80

53.3

15.5

2.41

5.73

6.06

.14

.10

.05

0

.06

4.07

Sept.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1.1

.1.1

.1.1

.2

.2

.2

.2

.2

.2

~

Runoff in 

acre feet

206

257

603

38,570

953

134

414

361

8.5

6

3.2

0

3.8

2,950

Peak discharge.- Dec. 10 (7 p.m.) 160 sec.-ft.; Mar. 14 (6 p.m.) 151 sec.-ft.; Apr. 11 (5 p.m. 

134 sec.-ft.

f Computed on basis of partly estimated gage-height record.

Note.- Indefinite stage-discharge relation May 2-5, 14, SO, May 22 to June 7, June 11 to July 8, 

July 14-21, Sept. 5-30; discharge interpolated.

Time 'basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
40 SANTA ANA RIVER BASIN

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

Location.- Water-stage recorder, lat. 33°58'00", long. 117"26'30", in Jurupa Grant, half 

a mile downstream from Union Pacific Railroad bridge and 3 miles north of Arlington, 

Riverside County. Altitude of gage, about 690 feet.

Records available.- January 1929 to September 1942.

Average discharge.- 12 years (1929-37, 1938-42), 54.8 second-feet.

Extremes.- Maximum discharge during year, 391 second-feet Dec. 10; minimum dally, 23 

second-feet Sept. 4, 5.

1929-42: Maximum discharge, 100,000 second-feet Mar. 2, 1938, by slope-area method: 

minimum, 20 second-feet Aug. 3, 1937.

Remarks.- Records fair. Several diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

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.

30

28

32

32

32

32

35

37

35

33

33

35

35

35

35

35

35

d36

336

37

39

51

49

. 41

340

39

39

39

39

339

339

Nov.

d39

d39

d39

39

37

35

35

35

35

35

37

39

35

35

35

35

35

33

35

32

32

d32

d33

33

37

37

37

32

32

32

-

Dec.

32

37

37

33

33

35

33

37

35

116

121

93

81

d75

d81

d75

d75

 d76

d76

d77

d78

d78

96

102

87

140

136

133

151

193

211

Jan.

198

d!75

d!55

d!36

(3122

112

d!09

d!06

d!02

d99

d96

93

90

d94

d98

102

d!03

d!05

106

118

129

115

125

118

dllO

102

106

90

d90

d90

d90

Feb.

d90

90

90

d88

d85

d83

d80

78

78

75

72

d68

d65

d61

d58

54

56

d56

56

56

56

109

72

72

78

70

75

d73

-

_

-

Mar.

d71

67

58

58

56

51

49

56

49

49

63

58

58

102

199

133

118

118

109

115

112

115

112

99

90

78

72

63

47

45

47

Apr.

47

49

56

56

60

54

51

54

54

67

96

102

87

87

87

87

96

84

78

78

78

99

78

70

d66

d62

58

54

d52

d50

-

May

(148

(346

d45

43

39

39

41

43

43

41

37

41

43

41

43

43

43

43

43

41

41

41

41

41

41

39

41

39

37

39

35

June

d35

d34

d33

32

32

33

35

33

35

35

35

35

d37

37

37

37

d37

d36

d36

35

33

33

30

32

d32

d32

d32

d32

d32

d31

-

July

d30

d29

d29

d28

d28

28

26

26

26

£6

26

26

25

25

25

25

25

d26

d26

26

d25

d25

25

25

26

25

d24

d24

d24

d25

d25

Aug.

d25

d26

d26

d26

d25

25

25

28

35

35

28

d28

d28

d28

28

30

30

30

28

28

28

28

30

30

30

30

28

28

26

26

26

Sept.

26

26

25

23

23

d24

d25

26

28

28

28

26

26

26

28

26

26

28

28

25

26

d26

d26

d27

d28

d29

30

32

30

d29

Month

Uav

Water year 1941-42 ......................

Secondf cot-days

19,772

Maximum

51

39

1,800

109

211

Minimum

28

32

32

25

25

23

Mean

36.5

35.2

85. 9

138

112

73.0

81.2

33.9

28.1

54.2

Runoff in 

acre-feet

2,250

2,090

5,280

100,200

6,910

4,050

4,990

4,160

2,540

2,020

1,590

1,730

1,590

39,200

Peak discharge.- Dec. 10 (11:30 o.m.) 391 sec.-ft.; Mar. 15 (1 a.m.) 360 sec.-ft.

cT'Doubtful or no sage-heldit record; discharge Interpolated or computed on basis of probable 

recession curves.

Time basis; Pacific standard time nrlor to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA Alty RIVER BASIN 41 

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

Location.- Water-stage recorder, lat. 33°56'50", long. 117°33'30", in Jurupa Grant, at 

Hamner Avenue (revised), and 5 miles north of Corona, Riverside County. Altitude of 

gage, about 570 feet (from topographic map).

Records available.- May 1930 to November 1942 (irrigation seasons only). 

Remarks.- Records fair.

Discharge, In second-feet, May to November 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

May

50

48

46.

46

45

46

48

48

46

45

46

45

46

48

45

45

45

46

44

42

43

43

44

43

43

42

40

39

39

39

39

June

39

37

37

35

35

35

34

33

35

37

39

40

41

42

45

43

41

39

37

34

32

30

33

33

34

3,4

34

33

33

33

-

July

32

31

31

31

29

26

27

27

28

28

26

27

25

24

24

23

23

23

22

22

S2

22

22

22

22

23

22

22

22

22

23

Aug.

21

21

22

22

22

22

23

24

26

45

34

'3031

27

86

25

26

26

24

aE4

a25

a25

a26

26

27

25

25

25

25

23

24

Sept.

86

26

26

26

27

28

28

27

27

29

28

27

26

27

28

28

89

29

28

89

29

28

29

28

29

29

29

29

30

30

-

Oct.

31

31

31

31

31

32

32

33

32

34

36

37

36

36

36

33

32

33

33

34

33

34

35

36

35

35

37

38

37

38

38

Nov.

38

37

37

37

38

38

38

42

43

43

43

43

46

48

53

53

50

52

55

49

44

45

46

46

46

46

48

48

45

43

-

Month

Bay. .....................................

Second 

foot-days

1,374

1,087

773

797

839

1,340

Maximum

45

55

Minimum

22

37

Mean

84.9

28 0

44.7

Runoff in 

acre feet

2,730

2,160

1,530

2,660

a No gage-height record; discharge interpolated.

Time basis: Pacific war time. To convert war time to standard time, subtract 1 hour.

530350 O - 43 - 4
42 SANTA ANA RIVER BASIN 

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

Location.- Water-stage recorder, lat. 33°55'30", long. 117°35'40", In Jurupa Grant, at 

Auburndale Bridge, 4 miles northwest of Corona, Riverside County.

Records available.- May 1930 to November 1942 (Irrigation seasons only). 

Pemarks.- Records fair.

Discharge, in second-feet, May to November 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Way

71

67

65

63

61

61

63

63

61

61

59

59

59

57

57

61

63

61

59

56

56

56

56

56

57

56

50

47

44

46

49

June

49

49

54

49

52

56

54

52

52

50

50

49

50

52

56

50

47

47

47

47

44

40

42

44

41

40

40

40

40

41

-

July

41

40

38

38

37

37

37

37

37

37

37

38

37

35

32

34

34

32

31

30

27

29

27

26

26

26

27

26

29

29

27

Aug.

27

27

29

27

26

26

29

30

31

58

42

38

38

32

31

31

32

34

30

31

31

31

32

32

35

34

34

37

38

34

35

Sept.

40

35

40

38

38

38

32

34

35

40

37

37

35

35

35

38

40

41

41

40

38

37

38

35

41

38

40

38

41

41

-

Oct.

42

44

44

46

44

44

44

44

42

42

46

49

44

52

50

50

44

50

47

46

46

46

46

49

49

49

54

57

57

56

54

Nov.

57

59

61

61

59

61

57

63

67

61

61

57

61

65

73

73

75

71

73

67

59

57

63

61

65

67

67

61

67

67

-

Month

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

Second 

foot-days

1,800

1,018

1,136

1,916

-

Maximum

71

56

41

58

41

57

75

-

Minimum

44

40

26

26

32

42

57

-

Mean

58.1

47.5

32.8

33.0

37.9

47.6

63.9

-

Runoff in 

acre- feet

3,570

2,820

2,020

2,030

2,250

2,930

3,800

19,420

Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 43

Santa Ana River below Prado Don, near Prado, Calif.

Location.- Water-stage recorder, lat. 33°53'00", long. 117°38'30", in La Sierra Grant, 

half a mile downstream from Prado Dan, and 1 mile southwest of Prado, Riverside County. 

Altitude of cage, about 450 feet.

Records available}- March 1940 to September 1942. January 1919 to September 1940 at site 

2* nilen downstream, published as Santa Ana River near Prado (published for irrigation 

seasons only sinde October 1940; see p. 44 ).

Average discharge.- 23 years (1919-42), 148 second-feet.

Extremes.- Maximum discharge during year, 667 second-feet Mar. 15 (gage height, 2.47 

feet); minimum daily, 43 second-feet Aug. 6.

1940-42: Maximum discharge, 2,260 second-feet (regulated) Dec. 24, 1940 (gage 

height, 3.20 feet); minimum daily, 38 second-feet July 24-26, Aug. 7, 8, 11, 12, 1940.

Re-arks.- Records fair. Diversions and regulation above station. Discharge less than 

1,850 second-feet passes unrestricted through the ungated openings of Prado floodcontrol dam.

Cooperation. Sixty-four discharge measurements furnished by Corps of Engineers, U. S. 

Army; thirty-three furnished by Orange County Water District; twenty-two furnished 

by Orange County Flood Control District, through A. A. Beard, flood control engineer.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

68

68

65

68

68

71

71

7S

80

82

82

86

88

83

82

82

82

82

88

96

108

158

150

119

108

105

99

97

94

94

91

Nov.

96

102

103

111

102

102

103

102

97

97

102

121

103

100

103

108

108

106

106

103

100

102

102

100

97

100

105

105

103

106

-

Dec.

102

103

119

117

111

110

105

105

110

191

353

159

141

137

145

141

149

141

145

145

149

149

146

165

156

234

190

174

272

290

288

Jan.

231

210

190

190

180

161

170

180

175

165

170

170

170

175

175

175

175

161

165

1?5

185

190

190

175

175

185

185

180

180

180

185

Feb.

180

170

165

161

165

161

157

153

137

149

137

133

126

137

141

129

122

dl!5

108

105

122

200

165

141

137

129

145

133

.

-

Month

October. ................................

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

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

Calendar year 1941 ......................

January. ........ ..........................

February ........................ ..........

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

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

Mnv May ............ ...........................

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

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

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

September. ..... ........ ................ .

Water year 1941-42 ... . .......... .

Mar.

122

153

149

133

126

118

115

115

1L5

111

122

137

126

184

382

215

220

205

200

170

170

170

170

145

126

118

111

98

101

105

95

Apr.

95

92

92

92

98

133

122

122

118

133

215

205

170

170

175

165

165

161

153

145

141

200

195

170

153

141

129

122

111

101

-

Secondfoot-days

2,793

3,095

5,042

87,605

5,573

4,023

4,627

4,284

2,679

2,153

1,682

1,536

1,795

39,282

May

98

101

101

95

92

92

95

105

92

89

80

89

89

89

89

89

89

89

86

83

77

83

83

77

80

77

74

71

74

d75

d76

Maximum

158

121

353

1,650

231

200

382

215

105

80

67

65

aiy DC

382

June

77

d80

d76

71

71

71

66

69

d70

d71

d72

d74

a76

a78

a80

a78

a75

a72

a72

a70

a 68

a65

a 67

a70

a76

a72

a70

a 68

65

63

"

Minimum

65

96

102

48

161

105

95

92

71

63

47

43

55

43

July

d65

67

60

62

60

57

53

54

54

57

54

55

55

54

53

54

57

54

55

53

50

50

51

50

50

50

50

51

47

50

50

Aug.

50

47

47

46

44

43

44

46

48

65

55

51

50

48

48

46

50

47

46

46

48

50

51

51

51

51

50

53

55

55

54

Mean

90.1

103

163

240

180

144

149

143

86.4

71.8

54.3

49.5

59.8

108

Sept.

59

60

62

62

62

60

60

60

60

62

60

59

59

59

59

59

60

62

60

59

58

55

58

58

59

60

60

60

62

62

~

Runoff in 

acre- feet

5,540

6,140

10,000

173,800

11,050

7,980

9,180

8,5OO

5,310

4,270

3,340

3,050

3,560

77,920

geak discharge.- Dec. 11 (6 p.m.) 549 see.-ft.; Dec. 29 (11 p.m.) 373 sec.-ft.; Mar. 15 (5:30 a.m.; 

567 sec.-ft.

a No gage-height record; dlscnarge computed on basis of eight discharge measurements, and records 

of stations at Riverside Narrows, at Hamner Avenue, at Auburndale Bridge, and near Prado.

d Doubtful gage-height record; discharge computed on basis of three discharge measurements and 

records of stations at Riverside Narrows, Hamner Avenue, Auburndale Bridge, and near Prado.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
44 SANTA ANA RIVER BASIN

Santa Ana River near Prado, Calif.

Location.- Water-stage recorder, lat. 33°52'05", long. 117°40'20n , in Lomas de Santiago 

Grant at Riverside-Orange County line, in lower Santa Ana Canyon, 3 miles downstream 

from Prado Dam and 3 miles southwest of Prado, Riverside County. Altitude of gage, 

about 400 feet.

Records available.- January 1919 to November 1942 (Irrigation seasons only since October 1940). 

Average discharge.- 21 years (1919-40), 145 second-feet.

Extremes.- 1919-42: Maximum discharge, 100,000 second-feet (estimated) Mar. 3, 1934 

 (gage height, 17.32 feet, from floodmarks In gage well); minimum, 25 second-feet Aug. 

18, 1929 and Aug. 24, 1936.

Remarks.- Records fair. Diversions and regulation upstream from station; high flows 

only regulated at Prado Dam. For measurements made during period Dec. 1, 1941, to 

Apr. 29, 1942, published herein as mlscellanesus measurements, see p.

Cooperation.- Thirty discharge measurements furnished by Orange County Water District 

and 15 by Orange County Flood Control District.

Discharge, In second-feet, May to November 1942

Da;

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

May

96

91

93

91

90

91

96

93

90

90

85

85

85

85

85

82

82

82

82

80

80

82

82

83

83

83

83

80

78

77

75

June

75

75

74

75

77

75

74

72

72

72

74

74

74

74

77

77

74

74

72

70

68

66

66

66

67

68

67

66

63

64

-

July

63

61

57

60

60

58

58

60

60

60

60

60

58

58

57

57

53

54

53

54

53

50

50

51

50

50

48

46

49

50

54

Aug.

54

49

49

51

48

49

49

51

53

66

55

50

49

48

49

49

49

51

46

45

48

46

48

50

50

50

48

49

53

50

50

Sept.

55

54

55

54

57

57

57

57

55

53

54

53

51

51

50

49

49

51

51

50

49

48

53

51

53

53

54

57

57

58

-

Month

Hay............ ........................... 

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

July ------..-.-I - ..........

Aug\J st ............................ 

r>rtob

November .......................... - .. 

The period. .... .... .... ...............

Oct.

61

61

61

5S

63

64

66

66

66

66

68

70

67

66

67

67

63

67

68

68

67

68

68

70

74

74

75

80

85

85

83

Nov.

80

82

80

82

78

78

78

d80

83

S2

82

77

80

83

91

88

88

90

99

90

82

82

83

82

S6

90

93

93

91

90-'

fSays »---

2,639 96

2,142 77

1,712 63

1,552 66 

1,596 58

2,132 85

2,543 99

-

Minimum

. 75

63

46

45 

48

58

77

-

Mean

85.1

71.4

55.2

50.1 

55.2

68.8

84.8

-

Runoff in 

acre-feet

5,230

4,250

3,400

3,080 

3,170

4,230

5,040

28;400

d Doubtful gage-height record; discharge interpolated.

Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 

Santa Ana River at Santa Ana, Calif.

45

Location.- Water-stage recorder, lat. 33°45'00", long. 117°54'20", In Las Bolsas Grant, 

an eighth of a mile upstream from Fifth Street Bridge In Santa Ana, Orange County, 

and 2 miles downstream from Santiago Creek. Altitude of gage, about 80 feet. Auxiliary water-stage recorder on opposite bank.

Records available.- January 1923 to September 1942. 

Average discharge.- 19 years, 27.1 second-feet.

Extremes.- Maximum discharge during year, 350 second-feet Mar. 14 (gage height, 1.19 feet); 

no flow for several months.

1923-42: Maximum discharge, 46,300 second-feet Mar. 3, 1938 (gage height, 10.20 

feet), by slope-area method; no flow for several months each year.

Remarks.- Records poor. During Irrigation season canal of Anahelm Union Water Co. and 

canal of Santa Ana Valley Irrigation Co., divert entire flow of river at points near 

Olive, about 22 and 25 miles, respectively, above station. Flow also regulated by 

storage and other diversions.

Cooperation. Two discharge measurements and many field estimates of flow furnished by 

Orange County Flood Control District, through A. A. Beard, flood-control engineer.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

2.0

2.0

1.8

1.4

0

0

0

0

0

0

0

0

0

0

0

0

~

Dec.

0

0

0

0

0

0

0

0

0

40

.2

0

0

5

34

26

24

21

9

6.5

4.8

3.0

6

9

24

12

Jan.

8

7.5

.5

.1

1.2

3.2

.5

3.6

.9

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.6

0

0

0

9

3.6

.6

.2

0

1

f '^

J

-

-

"

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ...................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

0

0

0

0

0

0

0

1-

0

0

15

.3

0

0

0

0

11

.2

'

Apr.

 j

V 0.4

)

0

.2

0

0

0

0

0

.4

0

0

1; Second 

foot-days

0

7.4

225.5

40,566.0

28.8

15.5

18.4

6.4

2.6

.2

0

0

0

304. S

May

> 0.2

J

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

2,0

40

2,S60

8

9

15

_

.1

0

0

0

40

June

0

0

0

0

0

0

0

0

0

0

0

0

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

~

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

July Aug.

Mean

0

.25

7.27

111

.93

.55

.59

.21

.OS

.007

0

0

0

.84

Sept.

Runoff in 

acre feet

0

15

447

80,470

57

31

36

13

5.2

.4

0

0

0

605

350 sec.-ft.

Note.- No gage-height record Nov. 25 to Dec. 9, Dec. 11-16, Dec. 24-26, Mar. 8, 9, Mar. 21 to 

Apr. 3, Apr. 25 to May 8; discharge computed on basis of aix estimates of flow and records of 

Santiago Creek at Santa Ana.

Is; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter 

wa'r time to standard time, subtract 1 hour.

Time basis: 

To conver
46 SANTA ANA RIVER BASIN

Southern California Edison Co.'s canal and Greenspot pipe lino near rfentone, Calif.

Location.- .At Southern California Edison Co.'s power plant at nouth of canyon, lat.

 3TW20", lone. 117°05'55", in SWi sec. 4, T. 1 S., R. 2 W., 3 niles northeast of 

Hentone.

Records available.- 1896 to September 1942.

Average discharge.- Southern California Ldison Co.'s canal, 40-years (1696-98, 1904-42),

 51Y4 second-feet. Greenspot pipe line, 31 years (1911-42), 5.77 second-feet.

Extremes.- 1896-1942: Maximum daily canal discharge, 97 second-feet liar. 16, 1905; no

 flow during short periods in nearly every year.

Remarks.- Intake of canal is in sec. 34, T. 1 N., R. 2 W., at Southern California Edison

 Co.'s power plant 2, which is 2-J miles above the Mentone plant. Water is diverted 

from forebay of Mentone plant by Greenspot pipe line. Records for canal represent 

flow below forebay as computed from record of kilowatt output of power plant. Records 

for pipe line represent diversion from forebay as computed from weir record at forebay. 

The sun of the records as given in the following tables represents total flow of canal 

above forebay.

Cooperation.- Records furnished by Southern California Edioon Co.

Discharge, in second-feet, of Southern California Edison Co.'s Canal near Mentone Calif 

water year October 1941 to September 1942 ' "'

Day

1

2

3

4

5

6

7

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.

67

75

75

75

75

69

67

67

69

69

72

69

64

61

60

61

61

64

64

64

59

64

61

67

59

56

56

56

59

56

56

Nov.

56

56

53

51

45

48

45

48

45

48

48

69

56

53

48

43

43

48

48

45

45

45

43

45

45

51

61

59

56

53

-

Dec.

59

59

61

53

48

51

59

59

64

61

51

51

45

48

53

53

53

53

53

51

53

51

51

48

48

56

48

51

72

67

61

Month

Jan.

56

59

53

56

51

53

53

56

59

59

59

61

64

64

64

61

59

56

56

56

53

53

53

53

53

53

53

53

53

51

51

Feb.

48

48

48

45

45

48

45

40

32

40

43

48

45

45

40

43

45

45

48

48

61

75

48

48

51

48

51

51

-

-

-

October. ...................................

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

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

Calendar year 1941 ......................

Januarv ...

Febr 

Marc

uary. ..................................

h. . .......

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

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

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

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

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

September. ............. ...................

Water year 1941-42 ......................

Mar.

51

51

51

51

48

40

48

48

51

53

56

53

51

53

51

59

59

61

59

56

61

61

61

61

55

51

48

51

48

53

53

Apr.

56

56

56

19

0

0

0

0

0

0

36

72

72

69

67

67

67

67

64

64

64

72

67

61

64

64

64

64

69

64

-

Secondfoot-days

1,997

1,499

1,691

25,140

1,734

1,322 

1,653

1,485

1,862

1,867

2,093

2,134

1,963

21,300

May

64

59

59

56

56

61

64

56

51

53

43

51

48

48

67

64

64

67

61

56

56

59

67

67

67

64

67

64

69

67

67

Maximum

75

69

72

85

64

75 

61

72

69

69

72

77

72

77

June

61

53

59

61

59

61

59

67

64

59

61

69

67

69

64

61

61

64

56

59

67

61

61

61

67

61

61

61

64

69

-

Minimum

56

43

45

30

51

32 

40

0

43

53

61

59

59

0

July

67

67

72

67

64

67

72

69

69

67

72

72

72

72

72

72

67

67

61

61

61

64

64

61

64

G7

69

69

67

69

69

Aug.

67

69

67

75

75

72

67

59

67

72

69

72

69

72

72

75

75

72

69

64

61

64

61

64

64

69

07

67

77

72

Mean

64.4

50.0

54.5

68.9

55.9

47.2 

53.3

49.5

60.1

62.2

67.5

68.8

65.4

58.4

69

Sept.

67

69

69

61

61

64

61

61

64

67

67

64

64

67

67

72

67

64

59

59

61

69

64

64

64

67

67

72

72

69

~

Runoff in 

acre-feet

3,960

2,970

3,350

49,860

3,440

2,620 

3,280

2,950

3,690

3,700

4,150

4,230

3,890

42,230

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 47

Discharge, In second-feet, of Greenspot pipe line near Vantono, Calif., water year October 1941

to September 1948

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

Oct.

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

7

5

5

5

Nov.

5

5

5

5

5

5

5

5

5

6

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

-

Dec.

5

5

9

9

9

9

9

9

9

9

9

9

9

9

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

 2.0

2.0

Jan.

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

. Feb.

2.0

2.0

2.0

2.0

2.0

2.0

2.0

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

_

-

-

Mar.

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

3.0

0

0

0

0

3.5

7

7

7

7

7

7

Apr.

7

7

7

2.3

0

0

0

0

0

0

0

2.0

4.0

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

-

Hay

6

6

6

6

6

6

6

6

6

6

7.5

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

June

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

-

July

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

Aug.

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

Sept.

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

9

-

Month

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

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

September. .................................

Water year 1941-42 ......................

Secondfoot-days

265

150

152.0

140.0

162.5

131.3

247.5

270

279

279

270

2,406.3

Maximum

9

5

9

9

6

7

7

9

9

9

9

9

9

Minimum

5

2.0

2.0

0

0

6

9

9

9

9

0

Mean

8.55

5.00

4.90

5.00

5.S4

4.38

7.98

9.00

9.00

9.00

9.00

6.60

Runoff in 

acre-feet

526

298

301

123

278

322

260

491

536

553

553

536

4,780

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
48 SANTA ANA RIVER BASIN 

Hill Creek near Mentone, Calif.

Location,.- Water-stage recorder and concrete broad-crested weir control, lat. 34°05'10lt , 

 long."117°06'55", in SEiNWi sec. 17, T. 1 S., R. 2 W., at Bear Valley pipe line crossing a quarter of a mile upstream from Santa Ana River, li miles northeast of Mentone, 

and 5 miles southeast of East Highlands. Altitude of gage, about 1,780 feet.

Records available.- February 1939 to September 1942.

Extremes,.- Maximum discharge during year, 31 second-feet Apr. 4 (gage height, 3.88 feet); 

no flow Oct. 15-18, and at times during summer.

1939-42: Maximum discharge, 900 second-feet (estimated) Sept. 25, 1939; no flow 

during several periods each year.

Remarks.- Records fair. Mill Creek power canals 1, 2, and 3 divert above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6 

7

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.

0.2

.2

.4

.2

.1 

.4

.2

.7

.5

.4 

.9

2.2

.2

0

0

0

0

1.3

9

7

2.5

Nov.

1.8

1.8

l.S

1.5

.9 

.4

.4

.3

.3

.3

6.5

4.7

1.1

.6

.6

.6

.6

.6

.6

.S 

.9

.7 

.6

.6

.5

.4

.4

.4

.4

-

Dec.

0.4

.4

.8

.8

.3

.3

.4

.4

2.3

1.2

.5

.4

.4

.4

.4

.5

.6

.6

.8 

.8

.9 

.0

.0

.2

.1

.1

.4

.7

.7

Jan.

1.9

1.7

1.8

1.7

1.8

1 8 

l.S

1.8

1.5

1.4

1.1

.5

.3

.2

.2

.2

.2

.2

.2

.2

.2 

.2

.3

.3

.3

.3

.2

.2

.2

Feb.

0.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.1

.1

.1

-

-

-

Mar.

0.1

.1

.1

.1

.1

.1

.1

.3

.2

.1

.4

.5

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Apr.

0.1

.1

.1

6

.4

.2

.2

.7

2.1

.4

.3

.3

.3

.3.2"

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

-

May

0.1

.1

.1

.1

.1 

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

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

-

July

 0.05

Aug.

' 0.05

Sept.

 0.06

-

Month

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

Hay. .......................................

September. .................................

Water year 1941-42 ......................

Secondfoot days

49.0

24.9

7,295.8

25.8

3.4

4.2

14.6

3.1

3.0

1.55

1.55

1.50

165.10

Maximum

2.3

122

1.9

.2

.5

6

.1

.1

_

_

-

9

Minimum

0

.3

0

.2

.1

.1

.1

.1

.1

_

_

-

0

Mean

.80

20.0

.83

.12

.14

.49

.10

.10

.05C

.050

.050

.452

Runoff in 

acre feet

49

14, 470

51

6.7

8.3

29

6.1

6.0

3.1

3.1

3.0

326

Peak discharge.- Oct. 20 (7 a.m.) 23 see.-ft.; Dec. 10 (6 p.m.) 23 see.-ft.; Apr. 4 (11 a.m.) 31 

sec.-ft.

Note.- No gage-height record Oct. 15, 16, 22-31 (debris on control affected stage-discharge relation Mar. 21-30 and Apr. 17 to Sept. 30); discharge computed on basis of field estimates of discharge, records for nearby stations, and limited by recorded gage heights.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific irar time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 49

Mill Creek power canals 2 and 3 near Craftonville, Calif.

Location.- Weir In tallrace of Southern California Edison Co.'s power plant, lat. 

34°03'10", long. 117°02'25", In NEi sec. 13, T. 1 S., R. 2 W., near Redlands-Bear 

Valley highway, 5 miles northeast of Craftonville.

Records available.- January 1919 to September 1942. 

Average discharge.- 23 years, 21.4 second-feet.

Extremes.- 1919-42: Maximum daily discharge, 36 second-feet Nov. 19, 1923, and June 7, 

1924; no flow at times in 1923, 1937-40.

Remarks.- Discharge computed from weir records at tallrace of power plant. Mill Creek 

power canal 2 diverts from Mill Creek in sec. 8, T. 1 S., R. 1 W.; power canal 3 

diverts in sec. 13, T. 1 S., R. 1 W., about 3 miles above intake for canal 2. The 

canals serve power plants 2 and 3, which discharge into a common tallrace. At times 

entire flow of tailrace is distributed for irrigation and domestic supply.

Cooperation.- Records furnished by Southern California Edison Co.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

S

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

28

28

28

2S

28

2S

28

2S

2S

27

27

29

29

30

29

2S

2S

27

28

31

30

31

31

31

30

31

30

31

30

28

28

Nov.

28

28

28

28

27

27

27

27

26

26

26

31

31

29

2S

27

28

27

26

25

25

25

25

25

25

25

24

24

23

24

~

Dec.

23

23

27

25

26

25

25

24

25

25

26

26

26

25

25

25

25

24

24

24

24

24

24

24

23

24

24

24

26

25

25

Jan.

23

25

25

25

26

26

26

25

26

27

27

27

28

2S

28

27

27

26

26

26

26

26

26

25

25

25

26

25

25

25

25

Feb.

24

24

24

24

24

24

24

24

24

24

24

23

23

22

22

22

22

22

22

22

23

25

24

24

24

24

24

23

-

-

~

Month

October. ...................................

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

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

Calendar year 1941 ...................

January ....................................

February ....... ...........................

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

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

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

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

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

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

Septembe r ..................................

Water year 1941-42 ......................

Mar.

23

24

24

23

24

24

24

24

23

24

25

24

24

25

24

25

26

26

26

25

25

24

25

26

26

25

25

24

24

24

25

Apr.

25

25

26

30

30

32

32

30

31

31

31

31

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

"

Secondfoot-days

896

795

765

10,344<

803

655

760

930

992

847

698

643

543

9,327

May

32

32

32

32

32

32

32

32

32

32

' 32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

32

Maximum

31

31

27

33

28

25

26

32

32

32

25

22

20

32

June

32

31

31

31

30

30

30

29

29

29

29

30

29

28

28

28

29

28

28

28

27

26

26

26

26

26

26

26

26

25

~

Minimum

27

23

23

13

23

22

23

25

32

25

20

18

14

14

July

25

25

25

24

23

23

23

22

22

23

23

23

23 .

24

24

24

23

22

22

22

21

22

22

22

22

21

21

21

20

20

21

Aug.

21

21

20

20

21

22

21

21

22

21

21

22

21

21

21

22

22

22

21

21

21

20

20

21

20

18

18

20

20

20

21

Mean

28.9

26.5

24.7

28 3

25.9

23.4

24.5

31.0

32.0

2S.2

22.5

20.7

18.1

25.6

Sept.

20

20

20

20

19

19

19

19

19

19

20

19

18

IS

18

18

18

18

18

17

17

17

17

17

17

17

14

17

17

17

-

Runoff in 

acre-feet

1,780

1,580

1,520

20,530

1,590

1,300

1,510

1,840

1,970

1,680

1,330

1,280

1,080

18,510

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; 

To convert war time to standard time, subtract 1 hour.

time thereafter.
50 SANTA ANA RIVER BASIN

Mill Creek power canal 1 near Craftonville, Calif.

Location.- Water-stage recorder and weir control, lat. 34°05'1011 , long. 117°02'25", in 

IlEt sec. 13, T. 1 S., R. 2 W., a quarter of a. nile downstream from point of diversion 

from Mill Creek and 5 miles northeast of Craftonville.

Records available.- January 1919 to September 1942. 

Average discharge.- 23 years, 2.97 second-feet.

Extremes.- 1919-42: Maximum daily discharge, 29 second-feet Apr. 21, 22, 1932; no flow 

for several days most years.

Remarks.- Records good. Discharge determined by weir formula. This canal diverts from 

Mill Creek in IIEi sec. 13, T. 1 S., R. 2 W., above station on Mill Creek near Mentone. 

After passing through Mill Creek powerhouse 1, entire flow is at times distributed 

l*or irrigation'and domestic supply.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

3.1

3.1

3.0

3.6

3.6

3.6

3.8

3.S

3.6

3.6

3.6

4.5

4.0

3.8

3.6

3.6

3.6

3.6

4.3

9

6

9

6-5

7

5.5

5

4.7

4.5

4.5

3.3

4.0

Nov.

3.6

3.6

3.6

3.4

3.6

3.6

3.4

3.4

3.6

3.6

4.0

2.5

4.3

6

5.5

5-5

5.5

5.5

5.5

4.9

5

4.7

4.5

4.5

4.3

4.3

4.3

4.1

4.1

4.1

-

Dec.

4.0

4.0

3.8

4.5

4.3

4.0

4.0

4.0

5.5

6.5

6

5.5

5

4.7

4.7

4.5

4.5

4.5

4.3

4.5

4.5

4.1

4.7

4.3

4.7

6.5

5

4.9

8.5

8.5

9.5

Jan.

9.5

6.5

5.5

5

5

5

5

5

5

5

5

5.5

5.5

5

4.7

4.5

4.3

4.0

3.8

3.8

3.8

3.6

3.8

3.8

3.1

3.1

3.6

3.6

3.6

3.6

3.6

Feb.

3.6

3.3

2.S

3.4

3.4

3.4

3.4

3.3

3.3

3.3

3.3

3.3

3.3

3.3

a3.3

a3.3

a3.3

3.3

3.3

3.3

4.0

6

4.5

4.0

4.0

3.8

4.0

3.6

-

-

~

Month

October ....................................

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

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

Calendar year 1941 ......................

January ....................................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

3.6

1.6

2.2

3.4

3.4

3.4

3.6

3.4

3.3

3.1

3.6

3.1

2.e

3.4

4.0

3.6

3.1

2.S

2.6

2.e

2.5

2.5

2. -5

2.8

2.6

2.5

2.5

2.5

2.3

2.3

2.3

Apr.

2.3

2.2

2.5

1.3

.1

4.6

5

4.1

3.4

5.5

7.5

5

4.7

5.5

4.5

4.9

6

4.7

4.7

5

8

9

7

6

6

6

6

7

7.5

5.5

-

Secondfoot-days

138.4

128.5

158.0

1,589.6

142.0

100.1

90.3

151.5

116.8

40.3

24.1

20.2

11.1

1,121.3

May

5.5

4.5

3.6

3.6

3.8

4.3

4.7

5

5

5

5

5

4.7

4.0

3.6

3.8

3.6

3.0

3.0

2.8

3.0

3.3

3.4

3.4

3.3

3.0

3.0

' 2.8

2.8

2.6

2.3

Maximum

9

6

9.5

IS

9.5

6

4.0

9

5.5

2.3

1.8

1.4

.4

9.5

June

2.3

2.3

2.3

2.2

2.2

2.1

2.2

1.9

1.5

1.9

2.1

1.9

1.7

1.4

1.4

1.3

1.2

1.2

.8

.7

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

-

Minimum

3.0

2.5

3.8

O

3.1

2.8

1.6

.1

2.3

-5

.4

.4

.3

.1

July

0.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.8

.8

.8

.9

.9

.9

.9

1.2

1.2

1.3

1.4

1.4

1.4

1.8

.9

1.2

Aug.

1.3

1.4

1.4

1.4

1.2

.9

.7

.6

.6

.9

.6

.5

.5

.5

-5

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

Mean

4.46

4.28

5.10

4.36

4.58

3.58

2.91

5.05

3.77

1.34

.78

.65

.37

3.07

Sept.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

"

Runoff in 

acre-feet

275

255

313

3,150

282

199

179

300

232

80

48

40

22

2,220

a No gage-height record; discharge interpolated.

Note.- Discharge for periods Oct. 20 to Nov. 1, June 10-24, July 1-16 computed on basis of twleedally gage readings.

Time basla; Pacific standard time prior to 2 a.m., Feb. 9. 1942; Pacific war time thereafter. 

To convert »ar time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 5] 

Plunge Creek near East Highlands, Calif.

Location.- Water-stage recorder and concrete broad-crested weir control, lat. 34°07'10n , 

long. 117°08'30", in NEiNEi sec. 1, T. 1 S., R. 3 W., at mouth of canyon at crossing 

of North Fork ditch siphon, 2 miles northeast of East Highlands. Altitude of gage, 

about 1,625 feet.

Drainage area.- 16.9 square miles.

Records available.- January 1919 to September 1942.

Average discharge.- 23 years, 6.90 second-feet.

Extremes.- Maximum discharge during year, 132 second-feet Dec. 10 (gage height, 1.18 

feet): no flow several months.

1919-42: Maximum discharge, 5,340 second-feet Mar. 2, 1938, by slope-area method; 

no flow for long periods each year.

Remarks.- Records good. Diversions above station for Irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

. eO.Ol

.5

4.5

.3

2.4

1.8

2.0

1.0

.7

.7

.7

.7

.7

.7

Nov.

0.9

.8

.8

.8

.7

.7

.8

.9

.9

.7

.4

1.1

.8

.7

.6

.5

1.2

1.4

1.2

1.1

.8

.5

.5

.5

.5

.3

.2

.2

.2

.2

Dec.

0.1

.1

 6

1.8

.8

.9

.8

.9

1.6

29

16

9

7

5.5

5

4.7

4.5

4,3

4.1

4.1

5.5

4.3

4.5

4.9

4.7

13

10

7.5

19

26

24

Jan.

24

16

14

11

9

8.5

7.5

7.5

7.5

7.5

7

7

7

7

7

6

6

6

6

5.5

5

5

5

5

5

4.9

4.9

4.9

4.9

3.7

3.0

Feb.

3.0

3.9

4.3

4.5

4.3

4.3

4.3

4.1

3.9

3.9

2.0

.9

.6

.5

.4

.3

.1

.1

.1

.1

.1

5

2.9

1.4

2.0

1.5

1.5

1.3

-

-

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ........ ..........................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

1 .

1.

2.

2.

4.7

8

6.5

6

6.5

6.5

6

5.5

5.5

5

6

6

5

4.7

4.5

4.3

3.9

3.2

Apr.

3.2

1.5

.6

6.5

4.7

4.9

4.7

3.9

3.7

4.9

7

6

5.5

5

4.9

4.5

4.7

4.3

3.7

3.5

4.7

6

4.5

4.7

5.5

6

5.5

7

7

6

-

Secondfoot-days

16.88

20.9

224.2

5,656.43

228.3

61.3

107.3

144.6

21.6

1.00

0

0

0

826.08

May

6

5.5

3.6

1.4

.7

.4

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.2

.5

.3

Maximum

4.5

1.4

29

236

24

5

p

7

6

.1

0

0

0

29

June

0.1

.1

.1

.1

.1

> e.02

-

Minimum

_

0.2

.1

_

3.0

.1

.1

.6

.1

0

0

0

0

July Aug.

Mean

0.545

.70

7.23

15.5

7.36

2.19

3.46

4.82

.70

.033

0

0

0

2.26

Sept.

Runoff in 

acre-feet

33

41

445

11,220

453

122

213

287

A-* 

^*O

2.0

0

0

0

1,640

Peak discharge.- Dec. 10 (7 p.m.) 132 sec.-ft.; Dec. 31 (12:30 a.m.) 48 sec.-ft. 

e Daily discharge less than 0.10 sec.-ft. Time baa is; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
52 SANTA ANA RIVER BASIN

San Timoteo Creek near Redlands, Calif.

Location.- Water-stage recorder and concrete control, lat. 34°01'55", long. 117 0 12'30", 

IrTUvJlNWt sec. 4, T. 2 S., R. 3 W., 2 miles southeast of Redlands. Altitude of gage, 

about 1,260 feet.

Drainage area.- 123 square miles (revised). 

Records available.- October 1926 to September 1942. 

Average discharge.- 16 years, 2.05 second-feet.

Extremes.- Maximum discharge during year not determined; no flow most of year.

1926-42: Maximum discharge, 7,460 second-feet Mar. 2, 1938, by slope-area method; 

no flow during several months of each year.

Remarks.- Records poor. Entire flow diverted above station except during high water.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec.

0

0

0

0

0

0

0

0

0

a.l

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Jan. Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

a. 2

. a. 2

0

0

0

0

0

0

-

_

-

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

a. 4

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

.5

1.0

.6

.8

1.2

.9

.1

0

0

0

0

0

.3

.2

0

0

0

0

0

-

Hay June July Aug.

0

0

0

0

0

0

0

0

0

1.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

Month

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

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

Uav

Water year 1941-42 ......................

Secondfoot days

740.8

.4

5.6

0

0

0

1.2

0

7.7

Maximum

0

260

.2

.4

1.2

0

0

0

1.2

0

1.2

Minimum

0

0

0

0

0

0

0

0

0

.0

Mean

2.03

.014

.013

.19

0

.04

0

.02

Runoff in 

acre-feet

1,470

0

.8

11

0

0

0

2.4

0

15

a No gage-height record; discharge computed on basis of rainfall records and engineers' notes. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 53

Warm Creek near Colton, Calif.

Location.- Water-stage recorder, lat. 34°04'00", long. 117°18'30", in San Bernardino

Grant, at Colton Avenue Bridge, li miles east of Colton, San Bernardino County. Altitude of gage, about 970 feet.

Records available.- August 1930 to September 1942.

Average discharge.- 33 years, 50.7 second-feet. Average combined discharge of Warm Creek 

and Keeks & Daley Canal, 33 years, 61.3 second-feet.

Extremes.- Maximum discharge during year, 355 second-feet Dec. 10; maximum gage height, 

6.20 feet Mar. 14; minimum discharge, 37 second-feet Oct. 10.

1930-42: Maximum discharge, 27,500 second-feet Mar. 2, 1938, from rating curve 

extended above 1,250 second-feet; minimum, 2.0 second-feet Sept. 8, 1936.

Remarks.- Records fair. See p. 65 for records of Meeks & Daley Canal near Colton, which 

diverts above station, and p. 54 for records of combined flow of canal and Warm Creek. 

City of San Bernardino sewage-disposal plant discharged 4,140 acre-feet into Warm Creek 

above station during year.

Correction.- Maximum combined daily discharge for Warm Creek and Meeks & Daley Canal for 

the water year 1941 was 830 second-feet; figure was published in error in Water-Supply 

Paper 931.

Discharge, in second-feet, water year October 1941 to September 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

Oct.

44

42

41

39

38

37

39

38

33

30

30

34

32

32

32

33

33

32

36

46

58

105

a90

a85

a80

a75

a72

a70

a6S

a66

a65

Nov.

62

62

61

60

59

a59

a59

a59

a59

a 57

a55

a65

a72

a62

a48

a 58

a65

a64

a63

a62

a61

a60

60

52

39

38

38

38

39

40

-

Dec.

41

41

54

42

42

42

44

46

50

157

103

95

93

89

87

83

81

76

74

70

66

66

65

60

69

78

65

71

138

152

140

Jan.

121

100

92

85

82

78

75

74

74

75

75

75

76

77

77

78

79

78

SO

SO

81

82

79

79

77

78

75

74

72

72

73

Month

October ........ ....... . .

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

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

Calendar year 1941 ............

January ..........................

February ...............

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

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

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

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

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

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

September ................ ... . .

Water year 1941-42 ... .... . .

Feb.

71

71

71

71

70

69

69

67

66

65

64

a64

a63

a63

a62

a58

a61

a61

a60

a60

a80

a80

f68

66

66

63

63

61

-

-

-

Secondfoot-days

1,555

1,676

2,380

28,503

2,473

1,853

2,334

1,979

1,539

1,517

1,217

1,122

1,149

20,794

Mar.

59

60

60

60

62

66

67

71

74

75

90

79

78

118

78

75

77

78

78

78

81

82

87

84

80

75

74

72

70

71

75

Apr.

75

71

71

77

56

52

49

48

48

62

69

74

71

75

81

82

85

76

71

66

73

79

82

71

' 59

53

50

52

53

48

~

Maximum

105

72

157

830

121

80

118

85

56

59

48

39

42

157

May

49

49

45

46

46

53

53

51

54

52

55

54

56

56

54

54

53

52

50

51

52

50

50

49

49

47

42

44

40

44

39

Minimum

30

38

41

30

72

58

59

48

39

36

36

32

36

30

June

36

42

52

53

53

54

57

59

58

57

55

55

54

54

52

49

50

50

51

50

48

47

46

46

47

47

50

49

48

48

~

Mean

50.2

55.9

76.8

78.1

79.8

66.2

75.3

66.0

49.6

50.6

39.3

36.2

38.3

57.0

July

48

47

45

44

43

42

42

41

39

39

38

37

37

37

36

36

37

38

38

39

39

39

38

38

38

37

38

37

37

37

36

Aug.

36

36

36

35

34

32

32

32

33

39

38

38

37

37

38

37

38

37

37

37

37

38

37

36

36

36

36

36

36

36

39

acre-feet

3,080

3,320

4,720

56,510

4,910

3,680

4,630

3,930

3,050

3,010

2,410

2,230

2,280

41,250

Sept.

40

41

41

42

41

39

39

39

39

39

39

40

37

37

37

37

57

37

37

37

37

36

36

37

37

37

37

39

39

39

"

acre-feet J

404

467

425

4,250

423

344

324

304

287

263

299

308

288

4,140

Peak discharge.- Dec. 10 (6:30 p.m.) 355 sec.-ft.; Dec. 29 (1:30 p.m.) 302 sec.-ft.; 

p.m.) 343 sec.-ft. *

14

(6

$ Discharge from sewage-disposal plant of city of San Bernardino; included in runoff figures in 

preceding column. Records furnished by that city.

a No gage-height record; discharge computed on the basis of recorded range in stage, rainfall 

records, and changes In diversion by Meeks & Daley Canal near Colton.

f Computed on the basis of partly estimated gage-height record.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tine thereafter. 

To convert war time to staralard time, subtract 1 hour.
54 SANTA ANA RIVER BASIN

Combined discharge, In second-feet, of Warm Creek and Meeks & Daley Canal near Colton, Calif, 

water year October 1941 to September 1942

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

Oct.

62

60

59

57

56

55

58

58

53

48

50

54

51

50

50

51

51

50

55

62

58

106

90

85

80

75

72

70

68

66

65

Nov.

62

62

61

60

59

59

59

59

59

59

60

69

72

70

67

66

65

64

63

62

62

61

61

60

57

56

56

56

57

58

-

Dec.

59

59

72

60

60

59

61

63

68

164

103

95

93

89

87

83

81

76

74

70

66

66

65

60

69

78

65

71

138

152

140

Jan.

121

101

98

89

85

80

78

77

76

77

77

77

79

80

80

80

80

79

81

81

82

83

79

80

78

79

76

75

73

73

74

Feb.

73

74

74

73

72

71

72

72

71

70

69

69

68

68

66

66

65

65

64

65

86

84

73

71

71

68

68

66

-

-

-

Mar.

64

66

66

65

70

74

74

79

80

82

96

84

84

124

78

75

77

78

79

78

81

82

87

84

80

75

74

74

74

76

81

Apr.

88

89

89

95

72

70

67

67

67

82

78

78

82

82

84

84

86

79

74

69

83

86

88

77

73

71

69

71

71

66

-

May

66

67

63

64

65

72

71

69

72

70

73

72

74

74

72

73

73

71

69

69

70

68

68

68

67

65

61

64

60

64

59

June

55

62

72

71

71

73

77

78

78

77

74

75

73

73

70

67

68

68

68

68

66

65

65

64

65

65

68

67

66

66

-

July

66

66

63

62

62

60

60

59

59

57

57

55

54

54

54

54

54

56

57

57

57

57

56

56

56

57

58

56

56

56

54

Aug.

54

55

54

54

53

51

49

50

52

58

57

57

57

56

57

56

57

55

55

55

55

57

56

56

54

54

54

53

55

56

59

Sept.

59

61

60

61

60

58

59

59

58

57

57

57

55

54

55

55

56

56

56

56

57

57

55

55

56

56

57

58

58

57

-

Month

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

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

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

- Water year 1941-42 ......................

Secondfoot-days

1,925

1,841

2,546

31,610

2,528

1,974

2,441

2,337

2,113

2,075

1,785

1,701

' 1,715

24,981

Maximum

106

72

164

830

121

86

124

95

74

78

66

59

61

164

Minimum

48

56

59

47

73

64

64

66

59

55

54

49

54

48

Mean

62.1

61.4

82.1

86.6

81.5

70.5

78.7

77.9

68.2

69.2

57.6

54.9

57.2

68.4

Runoff in 

acre-feet

3,820

3,650

5,050

62,690

5,010

3,920

4,840

4,640

4,190

4,120

3,540

3,370

3,400

49,550

Time basis: Pacific standard time prior to 2 a.m., Feb. 

To convert war time to standard time, subtract 1 hour.

1942; Pacific war time thereafter.
SANTA ANA RIVER BASIN 55

Strawberry Creek near Arrowhead Springs, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°10'45", long. 

117"15'55", In SEt sec. 11, T. 1 N., R. 4 W., upstream from Del Rosa Water Co.'s 

lower diversion dam, half a mile south of Arrowhead Springs. Altitude of gage, about 

1,650 feet.

Drainage area.- 8.6 square miles.

Records available.- December 1919 to September 1942.

Average discharge.- 22 years (1920-42), 4.93 second-feet.

Extremes.- Maximum discharge during year, 102 second-feet Dec. 10 (gage height, 3.15 

feet); minimum dally, 0.5 second-foot Aug. 5-8.

1919-42: Maximum discharge, 3,360 second-feet Mar. 2, 1938, by rainfall-runoff 

studies; practically no flow at times during 1929 and 1931-35.

Remarks.- Records good. During the year Del Rosa Water Co. diverted 114 acre-feet above 

station. There is another small diversion for domestic supply above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

2.6 

2.5 

2.6 

2.7 

3.2

3.1 

3.1 

3.2 

2.9 

2.8

2.8 

3.6 

3.3 

2.9 

2.8

2.8 

3.0 

3.0 

4.8 

4.7

4.3 

8 

6 

4.9 

4.2

4.1 

4.2 

4.0 

3.8 

3.6 

3.6

Nov.

3.6 

3.6 

3.5 

3.4 

3.2

3.1 

3.0 

3.2 

3.3 

3.1

3.1 

4.0 

3.5 

3.4 

3.4

3.5 

4.1 

3.8 

3.7 

3.7

3.5 

3.5 

3.6 

3.3 

3.1

3.1 

3.1 

3.2 

3.4 

3.5

Dec.

3.3 

3.2 

4.5 

4.0 

3.6

3.4 

3.3 

3.2 

4.4 

29

11 

7 

6 

5.5 

4.8

4.4 

4.3 

.1 

.0 

.1

.2 

.0 

.4 

.3

.6

7 

5.5 

5 

21 

20 

16

Jan.

15 

10 

8 

7 

7

6.5 

6 

6 

5.5 

5.5

5 

4.8 

4.8 

4.6 

4.6

4.7 

4.8 

4.6 

4.4 

4.3

4.1 

4.6 

4.4 

4.4 

4.3

4.1 

4.1 

4.1 

3.9 

3.9 

4.0

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May

June 

July 

Augu 

Sept

Wa

ber ..........................

mber .......... ......

mber .........................

lendar year 194]

h... ...................

1 ..........

si ...........................

ember ........................

ter year 1941-42 ............

Peak discharge.- Dec. 10 (5:30

Feb.

4.0 

3.9 

3.8 

3.7 

3.7

3.8 

3.9 

3.8 

3.5 

3.4

3.4 

3.7 

3.8 

3.8 

3.8

3.7 

3.7 

3.5 

3.5 

3.5

4.3 

8.5 

4.7 

4.4 

4.6

4.0 

4.1 

3.9

Seoondfoot-days

113.1 

102.5 

213.1

5,082.6

169.0 

112.4 

158.8 

Ib3.2 

108.6 

58.8 

32.8 

21.9 

26.7

1,270.9

Mar.

3.7 

3.6 

3.7 

3.2 

3.1

3.6 

3.6 

3.5 

3.3 

3.4

7.5 

7.5 

5.5 

9 

11

9 

7.5 

6 

5.5

5.5

5 

4.9 

4.7 

5.5 

4.9

4.7 

4.3 

4.3 

4.2 

3.8 

3.8

Apr.

3.8 

3.8 

4.0 

9 

5

5 

4.7

4.3 

4.3 

6

6 

5 

4.7 

5.5 

4.7

4.6 

5 

4.6 

4.1 

4.0

6.5 

6 

5.6 

4.7 

4.6

4.7 

4.6 

7 

6 

5.5

May

5 

4.8 

4.6 

4.0 

3.8

3.8 

3.8 

3.8 

3.9 

4.1

4.1 

' 4.0 

3.7 

3.6 

3.6

3.7 

3.7

3.4 

3.1 

2.6

2.7 

3.0 

3.4 

3.6 

3.3

3.2 

2.7 

2.2 

2.4 

2.5 

2.5

June

2.2 

2.2 

2.2 

2.2 

2.2

2.3 

2.4 

2.1 

2.0 

2.0

2.2 

2.3 

2.3 

2.3 

2.2

2.1 

1.8 

1.8 

1.8 

1.9

1.8 

1.6 

1.6 

1.5 

1.6

1.7 

1.9 

1.7 

1.5 

1.4

Maximum Minimum Mean

8 2.5 3.65 

4.1 3.0 3.42 

29 3.2 6.87

210 2.5 13.9

15 3.9 5.45 

8.5 3.4 4.01 

11 3.1 5.12 

9 3.8 5.11 

5 2.2 3.50 

2.4 1.4 1.96 

1.4 .6 1.06 

1.1 .5 .71 

1.2 .6 .89

29 .5 3.48

July

1.3 

1.4 

1.4 

1.3 

1.3

1.2 

1.2 

1.1 

1.0 

.9

1.2

1.3 

1.2 

1.1 

1.0

.9 

1.2 

1.2 

1.3 

1.2

1.2 

1.2 

1.0 

.9 

.8

.7 

.6 

.7 

.7 

.7 

.6

Aug.

0.7 

.9 

.7 

.6 

.5

.5 

.5 

.5 

.8 

1.1

.8 

.8

.7 

.6

.8

.8 

.7 

.6 

.6 

.6

.6 

.7 

.8 

.6 

.6

.7 

.6 

.6 

.8 

1.1 

1.0

Runoff 

(acre-feet)

224 

203 

423

10,080

335 

223 

315 

304 

215 

117 

65 

43 

53

2,520

Sept.

1.2 

1.1 

1.2 

1.1 

1.1

1.2 

1.2 

.8 

.7 

1.1

1.2 

1.0 

1.0 

.7 

.7

.7 

.8 

.8 

.9 

.9

.7 

.6 

.6 

.6

.6

.6 

.9 

.8 

1.0 

.9

Diversion 

(acre-feettt

22 

24 

7.9

117

0 

0 

0 

0 

4.4 

25 

17 

7.9 

6.0

114

p.m.) 102 sec. -ft.; Dec. 29 (12 m. 49 sec. -ft.; Mar. 14 (5:30

p.m. ) 24 sec. -ft. 

$ Diversion to Del Rosa Water Co. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time the 

To convert war time to standard time, subtract 1 hour.

reafter*
56 SANTA ANA RIVER BASIN

Waterman Canyon Creek near Arrowhead Springs, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°11'35", long. 

117"16'35", In SWtSWi sec. 2, T. 1 N., R. 4 W., 1 mile northwest of Arrowhead Springs. 

Altitude of gage, about 2,125 feet.

Drainage area.- 4.55 square miles.

Records available.- November 1911 to October 1914, December 1919 to September 1942.

Average discharge.- 24 years (1912-14, 1920-42), 3.00 second-feet.

Extremes.- Maximum discharge during year, 41 second-feet Dec. 10 (gage height, 2.28 

feet); minimum dally, 0.2 second-foot many times.

1920-42: Maximum discharge, 2,350 second-feet Mar. 2, 1938, based on rainfallrunoff studies; no flow at times during summers of 1924-26, 1928, 1929, 1931, and 

1934.

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

fair. One small diversion for domestic use above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1.6

1.5

1.5

1.6

1.8

1.6

1.5

.5

.3

.2

.2

.5

.4

.2

.2

1.2

1.2

1.2

2.2

2.0

1.8

5

3.2

2.6

2.3

2.1

2.3

2.2

2.0

1.9

1.8

Nov.

1.8

1.8

1.7

1.5

1.5

1.4

1.5

1.5

1.5

1.5

1.5

2.3

2.0

1.9

1.8

1.9

3.4

2.3

2.2

2.1

2.1

2.0

1.9

1.9

1.8

1.8

1.7

1.7

1.8

1.8

-

Dec.

l.S

1.7

2.9

2.3

2.1

2.1

2.1

1.9

2.6

14

5.5

3.6

3.5

3.2

3.1

3.0

2.7

2.4

2.1

2.1

2.1

2.1

2.3

2.1

2.5

3.4

2.5

2.6

a!2

all

a9

Jan.

a8

a6

a5

a4.5

a4.0

a3.8

f3.7

3.7

3.7

3.6

3.4

3.1

3.0

2.9

2.8

2.7

2.7

2.6

2.5

2.5

a2.5

aS.O

a2.9

a2.8

a2.8

a2.7

a2.7

a2.7

a2.6

a2.6

a2.6

Feb.

a2.6

a2.5

a2.5

a2.5

a2.5

a2.4

a2.4

a2.4

a2.4

a2.3

f2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.2

2.2

3.3

8

2.6

2.3

2.3

2.1

2.1

2.0

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ...................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Peak discharge.- Dec. 10 (5 p.m.) 41 sec.

Mar.

2.0

1.9

1.9

1.9

1.9

1.9

1.7

1.6

1.6

1.6

5.5

4.2

3.5

5

4.3

4.0

3.7

3.5

3.2

3.1

3.0

2.9

2.7

2.8

2.4

2.2

2.1

2.0

2.0

1.8

1.8

Apr.

1.8

1.8

1.8

5.5

3.0

2.9

2.5

2.3

2.3

3.5

3.1

2.8

2.6

3.2

2.8

2.8

3.4

2.6

2.3

2.3

3.6

2.9

2.8

2.4

2.4

2.5

2.3

4.0

3.5

2.9

-

Secondfoot-days

56.6

55.6

116.3

2,625.1

104.1

72.0

83-. 7

P4.6

63.4

36.5

15.4

7.6

8.6

704.4

May

2.8

2.7

2.5

2.5

2.4

2.4

2.3

2.3

2.3

2.3

2.6

2.2

2.2

2.2

2.2

2.1

2.1

2.0

1.8

1.6

1.6

1.6

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.5

Maximum

5

3.4

14

63

8

8

5.5

5.5

2.8

1.5

.9

.6

.5

14

-ft.; Feb. 21 (12 p.m. )

June

1.5

1.5

1.5

1.5

1.3

1.4

1.5

1.5

1.4

1.4

1.4

1.5

1.5

1.3

1.4

1.3

1.2

1.2

1.1

.9

.9

.9

.9

.9

.9

1.0

1.0

.9

.9

.9

Minimum

1.2

1.4

1.7

1.2

2.5

2.0

1.6

1.8

1.5

.9

.2

.2

.2

.2

July

0.9

.8

.8

.7

.7

.7

.6

.6

.6

.6

.6

.6

.5

.5

.4

.5

.6

.5

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.2

.2

.2

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.3

.6

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.4

.4

.5

Mean

1.83

1.85

3.75

7.19

3.36

2.57

2.70

2.82

2.05

1.22

.50

.25

.29

1.93

Sept.

0.5

.4

.4

.4

.3

.2

.2

.2

.3

.4

.4

.3

.2

.2

.2

.2

.4

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.3

.4

.3

" 

Runoff in 

acre-feet

112

110

231

5,200

206

143

166

168

126

72

31

15

17

1,400

25 sec, -ft.

a No gage height record; discharge computed on basis of recorded range in stage and record for 

trawberry Creek near Arrowhead Springs.

f Computed on basis of partly estimated gage-height record.

Tine basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BJP'N & « 

City Creek near Highland, Calif.

Location.- Water-stage recorder, lat. 34°08'35", long. 117°11 I 25", In SWiNWi sec. 27,

 T. 1 N., R. 3 W., li miles northeast of Highland. Altitude of gage, about 1,550 

feet.

Drainage area.- 19.8 square miles.

Records available.- October 1919 to September 1942.

Average discharge.- 23 years, 9.34 second-feet.

Extremes.- Maximum discharge during year, 172 second-feet Dec. 10 (gage height, 1.94 

feet); minimum, less than 0.1 second-foot for several months.

1919-42: Maximum discharge, 6,900 second-feet Mar. 2, 1938, by slope-area method; 

no flow for several months most years.

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

 poor. For records of combined flow with City Creek Water Co.'s canal, which diverts 

above station, see following page.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

->

. eO.05

.2

.1

.1

.1

.1

.1

alO

a!5

aS

16

f!4

fll

f8.5

8

7.5

7.5

6.5

5.5

5

Nov.

.8

.8

.8

.8

.6

3.5

fl-6

fl.6

1.7

1.8

1.9

7.5

6

5

5

5

f9.5

a7

a2.8

a. 5

a. 4

f.6

.5

.5

.4

.4

.5

.5

.6

.6

-

Dec.

0.6

.3

4.8

8.5

2.3

.3

.2

.1

7

63

a35

a!5

fll

10

8

e

4.0

3.8

3.6

4.7

5.5

4.0

6.5

5.5

6

13

7

6

34

40

28

Jan.

26

16

11

9.5

9

9

9

9

9

9

8.5

8

e

8

7.5

7

6

4.7

4.7

4.5

4.5

4.5

4.3

4.3

4.1

3.9

4.3

6

4.5

3.7

3.7

Feb.

2.9

2.6

2.4

2.3

2.4

3.1

6

6

4.7

2.1

1.2

1.1

.9

.7

.6

.5

.4

.4

.4

.4

1.9

14

6

4.3

8

7.5

7

7

.

-

-

Mar.

6.5

6.5

6.5

6.5

5

4.3

3.1

.3

.2

.1

7.5

12

10

15

16

16

15

12

10

9

8

7

7

9.5

9

8.5

8

7.5

6.5

5.5

2.7

Apr.

1.4

1.3

1.7

12

9

9.5

9

8.5

8

10

12

10

10

10

10

10

10

9

8.5

8.5

a!2

a!3

rio

9.5

9

9.5

9

14

12

11

-

May

11

10

9

7

5

5.5

5

3.5

a.2.0

al.O

a. 4

a. 4

.4

.3

3.9

2.5

.6

.6

.5

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

3.1

June

1.3

>e0.04

1

July

v

 eO.02

> ,

Aug.

>

 eO.02

;

Sept.

teO.03

I

Month

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

Calendar year 1941 ......................

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

Unv

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

Water year 1941-42 ......................

Secondfoot-days

123.80

89.2

342.7

8,244.25

.62

1,480.40

Maximum

16

9.5

63

525

_

63

Minimum

0.4

.1

_

_

-

Mean

3.99

11.1

22.6

9 25

4.06

Runoff in 

acre-feet

246

177

680

16,350

192

2,940

a No gage-height record; discharge computed on basis of ons discharge measurement, high-water 

marks, rainfall records, recession curves of combined flow, and records for nearby stations.

e Daily discharge less than 0.1 second-foot.

f Computed on basis of partly estimated gage-height record.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.

530350 O - 43 - S
SANTA ANA RIVER BASIN

Combined discharge In second-feet, of City Creek and canal near Highland, Calif., 

water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

3.4

3.2

3.2

3.6

3.8

4.0

3.8

4.0

3.3

3.2

3.0

4.2

4.6

3.9

3.4

3.3

3.3

3.3

13

15

8

16

14

11

8.5

8

7.5

7.5

6.5

5.5

5

Nov.

4.8

4.8

.8

.8

.6

.5

.5

4.5

4.6

4.8

4.6

7.5

6

5

5

5

9.5

7

6.5

6

6

5.5

5.5

5.5

5.5

5.5

5.5

6

5.5

5.5

-

Dec.

5.5

6

e

8.5

7.5

7

6-5

6

9.5

63

35

15

11

10

9

9

9

8.5

8.5

8

8

8

8.5

8

8

13

10

9.5

34

40

28

Jan.

26

19

15

14

13

12

12

12

13

13

13

12

12

12

11

10

10

9

9

8.5

8.5

8.5

8

8

7.5

7.5

7.5

7.5

7

7

7

Feb.

6.5

7

7

6.5

6.5

6

6

6

6

6

6

6

6

6

6

6.5

6.5

6.5

6

6

6.5

15

9

7.5

8

7.5

7

7

-

-

-

Mar.

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6

6

10

12

10

15

16

16

15

12

11

11

10

9

9

11

9

8.5

8

7.5

7.5

7.5

7.5

Apr.

7.5

7

6.5

12

9

9.5

9

8.5

8

10

12

10

10

10

10

10

10

9

8.5

8.5

12

13

10

9.5

9

9.5

9

14

12

11

-

May

11

10

9

8.5

7.5

7.5

7.5

7.5

7.5

7.5

7.5

7.5

7

7

6.5

6.5

6.5

6.5

6

6

5.5

5.5

5.5

5.5

6

6

6

6

6

6

5.5

June

5.5

6

6

5.5

5

5

5.5

5.5

5

4.9

5

5.5

5

4.9

5

4.9

4.6

4.4

4.2

4.0

3.5

3.3

3.1

3.1

3.1

3.2

3.4

3.1

2.9

2.7

-

July

.5

.3

.1

.1

.8

.7

.5

.4

.3

.5

.5

.3

1.3

1.3

1.3

1.4

1.5

1.5

1.4

1.3

1.1

.9

.9

1.0

1.1

.9

.8

.8

.8

.8

.7

Aug.

0.7

.7

.7

.8

.4

.4

.4

.6

.6

1.2

1.2

1.0

.9

.8

.8

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.7

.7

.9

1.2

1.3

Sept.

1.5

1.5

1.4

1.3

1.2

.9

.7

.7

.7

.9

1.3

1.2

.8

.6

.5

.5

.6

.8

.8

.7

.4

.4

.5

.5

.5

.5

.5

.6

.7

.8

-

Month

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

Calendar year 1941 ......................

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

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

Water year 1941-42 ......................

Secondfoot-days

190.5

164.8

425.5

9,595.7

41.8

21.8

24.0

2,327.7

Maximum

16

9.5

63

525

1.3

63

Minimum

3.0

4.5

5.5

3.0

.4

.4

.4

Mean

6.15

5.49

13.7

26.3

6.90

.70

.80

6.38

Runoff in 

acre-feet

378

327

844

19,040

43

4,620

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war tine to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 59 

City Creek Water Co.'s canal near Highland, Calif.

Location.- Water-stage recorder, lat. 34°08'35", long. 117°11'25", In NWi sec. 27, T. 1 

N., R. 3 W., 14 miles northeast of Highland.

Records available.- May 1924 to September 1942. 

Average discharge.- 18 years, 2.22 second-feet.

Extremes.- Maximum dally discharge during year, 7 second-feet May 11 and 12; no flow 

during, several periods.

1924-42: Maximum discharge, 10 second-feet May 30, 1927; no flow at times.

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

This canal diverts from City Creek a quarter of a mile above gage on that stream. 

(See p. 58 for records of combined flow of City Creek and canal.)

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

5.3

3.1

3.2

3.5

3.8

5.9

3.8

5.9

3.8

3.2

3.0

4.1

4.4

3.8

3.3

3.2

3.2

3.2

2.8

0

0

0

0

0

0

0

0

0

0

0

0

Nov.

0

0

0

0

0

1.0

2.9

2.9

2.9

3.0

2.7

0

0

0

0

0

0

0

3.6

5.5

5.5

5

5

5

4.9

4.9

5

5.5

5

5

-

Dec.

5

5.5

3.0

0

5

6.5

5.5

6

2.6

.1

0

0

0

0

1.0

4.1

4.8

4.8

4.7

3.5

2.7

3.9

2.1

2.6

2.1

0

2.9

3.4

0

0

.4

Jan.

0.3

3.3

4.4

4.0

3.7

2.9

2.9

3.1

4.0

4.3

4.2

4.1

4.0

3.8

3.7

3.5

3.9

4.2

4.1

4.0

3.9

3.9

3.9

3.8

3.6

3.5

3.1

1.6

2.7

3.2

3.1

Feb.

3.7

4.3

4.4

4.3

3.9

2.7

.1

0

1.2

3*9

4.8

4.8

4.9

5.5

5.5

6

6

6

5.5

5.5

4.4

.7

3.1

3.3

0

0

0

0

-

-

-

Mar.

0

0°0

1.5

2.4

3.6

6

6

6

2.3

0

0

0

0

0

0

.3

1.0

2.0

2.0

2.1

2.2

1.5

.1

.1

0

0

.9

1.8

5

Apr.

6

5.5

4.7

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

-

May

0

0

0

1.5

2.4

1.9

2.4

3.9

5.5

6.5

7

7

6.5

6.5

2.7

3.9

6

6

5.5

5.5

5.5

5.5

5.5

5.5

6

6

6

6

6

6

2.5

June

4.3

6

6

5.5

5

5

5.5

5.5

5

4.9

5

.5.5

5

4.9

5

4.9

4.6

4.4

4.2

4.0

3.5

3.3

3.1

3.1

3.1

3.2

3.4

3.1

a2.9

a2.7

-

July

2.5

2.3

2.1

2.1

1.8

1.7

1.5

1.4

1.3

1.5

1.5

1.3

1.3

1.3

1.3

1.4

1.5

1.5

1.4

1.3

1.1

.9

.9

1.0

1.1

.9

.8

.8

.8

.8

.7

Aug.

0.7

.7

.7

.8

.4

.4

.4

.6

.6

1.2

1.2

1.0

.9

.8

.8

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.7

.7

.9

1.2

1.3

Sept.

1.5

1.5

1.4

1.3

1.2

.9

.7

.7

.7

.9

1.3

1.2

.8

.6

.5

.5

.6

.8

.8

.7

.4

.4

.5

.5

.5

.5

.5

.6

.7

.8

-

Month

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

Water year 1941-42 ......................

Secondfoot days

108.7

141 2

851.7

Maximum

7

Minimum

0

0

v 7

0

Mean

2.15

3.51

.80

2.33

Runoff in 

acre-feet

132

216

83

48

1,690

No gage-height record; discharge Interpolated. 

Time 'basis: Pacific standard time prior to 2 a.m., Feb. 

To convert war time to standard time, subtract 1 hour.

1942: Pacific war time thereafter.
60 SANTA ANA RIVER BASIN 

Devil Canyon Creek near San BernardIno, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°12'05", long. 

 rr7°50~'10", In Muscuplabe Grant, 7.3 miles northwest of San Bernardlno, San Bernardino 

County. Altitude of gage, about 1,800 feet.

Drainage area.- 6.16 square miles.

Records available.- November 1911 to September 1912, October 1913 to September 1914, 

December 1919 to September 1942.

Average discharge.- 23 years (1913-14, 1920-42), 2.23 second-feet.

Extremes.- Maximum discharge during year, 21 second-feet Dec. 10 (gage height, 2.17 feet); 

no flow for several'months.

1913-14, 1919-42: Maximum discharge, 3,320 second-feet Mar. 2, 1938, by rainfallrunoff studies; no flow for several months during summers of 1924-37, 1939-42.

Remarks.- Records good. City of San Bernardlno diverted 1,340 acre-feet above station 

during year for municipal supply and to spread over canyon floor for ground-water 

recharge.

Discharge, in second-feet, water year October 1941 tc September 1942

Daj

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24 

25

26

27

28

29

30

31

Oct.

. eO.Ol

0

0

0

0

0

0

0

0

0

0

0

. e.Ol

0

NOY. Dec.

0

0

0

0

0

0

0

0

0

4.1

3.6

1.5

.9

.7

.5

.4

.4

.4

.4 

.4

.4

.4

.7

.7 

.7

1.2

.9

1.0

7.5

9.5

B

Jan.

6-5

4.8

4.0

3.5

3.3

3.1

2.6

2.4

2.4

2.2

2.0

1.7

1.7

1.6

1.4

1.4

1.4

1.5

1.5 

1.4

1.4

1.4

1.4

1.4 

1.4

1.3

1.3

1.3

1.4

1.3

1.2

Feb.

1.1

1.1

1.1

1.1

1.0

1.0

1.1

1.2

1.1

1.1

1.0

.7

.3

.3

.2

.2

.2

.2

.2 

.2

.3

7

2.6

1.4 

.6

.4

.3

.3

-

-

-

Mar.

0.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.5

1.8

1.7

1.4

.9

.7

.6

.4

.3 

.2

.1

.1

.1

.1 

.1

.1

.1

.1

.2

.2

.3

Apr.

0.4

.4

.B

2.7

1.7

1.7

1.6

1.6

1.4

1.9

2.1

1.8

1.9

2.6

2.4

2.2

2.6

1.9

1.0 

.7

.6

.5

.4

.3 

.2

.2

.2

.4

.3

.2

~

May

0.1

.1

.1

.1

.1

.1

.1

> e.06

June

>e0.04

_

July

eO.02

0

0

0

0

0

0

0

0

0

0

0

0

0 

0

0

0

0

0 

0

0

0

0

0

0

0

Aug. Sept.

Month

fece

Calendar year 1941 .........

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

September .....................

Water year 1941-42 ..........

Secondfoot-days

0.19

0

44.3

1.570.59

65.2

27.3

11.7

36.7

2.14

1.20

.12

0

0

188.85

Maximum

0

41

6.5

7

1.8

2.7

.1

_

0

0

9.5

Minimum

0

0

0

1.2

.2

.1

.2

_

0

0

0

0

Mean

0.006

0

1.43

4.30

2.10

.98

.38

1.22

.069

.040

.004

0

0

.517

Runoff in 

acre-feet

0.4

0

88

3,110

129

54

23

73

4.2

2.4

.2

0

0

374

Divers ion in 

acre-feetj

161

161

60

2,130

13

53

146

134

219

145

96

77

73

1,340

Peat discharge.- Dec. 10 (7 p.m.) 21 sec.-ft.; Dec. 30 (12 m.) 12 sec.-ft.; Feb. 22 (6:30 a.m.) 17 

sec.-ft.

t Diversion by city of San Bernardino. Records furnished by that city.

e Dally discharge lesa than 0.1 second-foot.

Time basis; Pacific standard tine prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

convert war tine to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 61

Lytle Creek near Fontana, Calif.

Location.- At Intake of Fontana pipe line, lat. 34°12'05", long. 117°27'05", In NWi sec. 

6, T. 1 N., R. 5 W., unsurveyed, Just downstream from Lytle Creek power plant of 

Southern California Edison Co. and 8 miles north of Fontana. Altitude, about 2,200 

feet.

Drainage area.- 47.9 square miles.

Records available.- October 1918 to September 1921, October 1922 to September 1942.

Average discharge.- 23 years, 8.80 second-feet. Average combined discharge of creek and 

Fontana pipe line, 23 years, 38.4 second-feet.

Extremes.- Maximum discharge during year not determined; no flow during parts of year. 

1518-21, 1922-42: Maximum discharge, 25,200 second-feet Mar. 2, 1938, by slopearea method; no flow during most of each year.

Remarks.- Records for Lytle Creek poor. Records for Fontana pipe line good; they

Include other minor diversions besides the main pipe line flow which passes through 

Fontana power house and is then used for Irrigation and domestic supply. Table on 

following page shows combined flow of Lytle Creek and Fontana pipe line, which Is 

total flow of Lytle Creek.

Cooperation,- Records furnished by Fontana Union Water Co.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

S8

29

30

31

2.6

2.1

1.1

.7

1.1

0

0

0

0

0

0

0

0

.7

0

0

0

0

0

.6

1.1

1.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.7

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

0

0

0

0

0

0

0

0

0

17

.8

.3

0

0

0

0

2.9

4.5

3.4

3.0

2.8

2.4

5.5

4.3

4.4

6.5

3.8

7

24

20

17

17

15

12

10

9

7.5

6

5.5

4.7

3.9

2.8

2.1

1.9

1.7

1.4

1.1

.9

.6

.4

.2

0

1.3

0

0

0

4.2

7

2.0

1.9

1.8

1.6

1.6

1.5

1.5

6

6

6

5.5

5.5

4.4

2.1

0

0

0

0

0

0

0

0

0

0

0

0

0

1.3

0

0

0

0

_

_

-

0

0

0

0

0

0

0

0

.2

.2

.9

.8

.7

.5

0

0

0

9.5

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

1.9

0

0

0

0

0

0

0

3.1

.5

1.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Hay June July Aug.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

Sept.

0

.3

0

0

0

0

0

.2

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

0

0

0

.1

0

0

0

.3-

Month

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

Calendar year 1941 ............

February .........................

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

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

If aw

Water year 1941-42 ............

Secondfoot days

11.9 

1.7 

129.6

18,S3S.9

123.5 

41.4 

12.8 

7.4 

0 

0 

0 

.2 

1.1

329.6

Maximum

2.6 

1.7 

24

516

17 

6 

9.5 

3.1 

0 

0 

0 

.2 

.3

24

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

Mean

o.?s

.06 

4.18

51.6

3.98 

1.48 

.41 

.25 

0 

0 . 

0 

.006 

.04

.90

Runoff 

(acre-feet)

24 

3.4 

257

37,370

245 

82 

25 

15 

0 

0 

0 

.4 

2.2

654

Diversion 

(acre-feet)t

3,530 

2,840 

2,680

41,520

2,420 

1,870 

2,070 

2,270 

2,140 

1,660 

1,630 

1,750 

1,460

26,330

Diversion through Fontana pipe line. 

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN

Combined discharge, In second-feet, of Lytle Creek and Fontana pipe line near Pontana, Calif. 

water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

63

62

62

61

62

60

60

60

59

58

57

58

57

56

55

54

54

53

55

59

57

62

60

58

57

56

56

56

55

54

53

Nov.

53

53

52

51

51

51

50

49

48

49

49

52

49

48

47

47

47

46

46

46

46

45

45

45

45

44

44

44

44

44

-

Dec.

43

43

45

44

43

43

42

42

42

76

60

54

50

49

47

46

45

45

43

43

43

42

46

44

44

46-

44

47

63

61

58

Jan.

58

55

53

51

50

48

47

46

45

45

44

43

43

42

42

41

41

41

41

41

40

42

40

39

39

39

39

37

39

38

38

Feb.

38

38

38

38

37

37

37

37

34

30

31

32

33

33

33

33

32

32

33

33

39

46

41

37

33

33

32

32

_

_

-

Mar.

32

31

31

31

31

31

33

34

33

35

35

33

35

36

36

35

35

36

37

35

35

35

35

35

35

35

35

34

34

34

34

Apr.

34

33

34

36

35

35

34

34

34

42

49

45

43

44

42

40

41

40

39

39

39

39

38

38

38

38

38

39

39

38

-

May

38

38

38

38

37

37

37

37

37

37

36

36

36

35

35

35

35

34

34

33

34

33

33

33

33

32

32

32

31

31

31

June

30

30

30

30

29

29

30

30

30

29

29

29

28

28

28

28

28

28

27

27

27

26

26

26

26

27

26

26

26

26

-

July

26

25

2fe

25

24

23

24

24

25

24

24

26

28

28

29

28

28

28

28

28

28

28

28

28

28

28

27

27

27

27

27

Aug.

26

26

26

26

26

26

26

25

26

34

35

35

34

33

32

31

30

29

28

28

27

28

28

28

27

27

27

27

27

27

27

Sept.

27

26

26

26

26

25

25

25

25

25

25

24

24

24

24

24

25

24

24

24

24

24

24

24

24

24

24

24

23

24

Month

HflV

Water year 1941-42 ... ..................

Secondfoot-days

1 789

839

13,603

Maximum

573

29

76

Minimum

37

31

31

23

25

o*

23

Mean

57

43 5

37.3

Runoff in 

acre-feet

2 090

26,970

Time basis: 

To convert war

Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 63

Lytle Creek (east channel) at San Bernardlno, Calif.

Location.- Water-stage recorder, lat. 34a05'45", long. 117°19'50", in San Bernardino 

Grant, at Mount Vernon Avenue Bridge, San Bernardino, San Bernardino County. Altitude of gage, about 1,050 feet.

Records available.- January 1929 to September 1942.

Average discharge.- 12 years (1929-38, 1939-42), 5.33 second-feet.

Extremes.- Maximum daily discharge during year, 20 second-feet Dec. 29; minimum daily, 

0.1 second-foot on many days.

 1929-42: Maximum discharge, 21,500 second-feet Mar. 2, 1938, by computation of 

flow through contracted opening; no flow during part of most years.

Remarks.- Records poor. Water diverted above station to debris cone for ground-water 

recharge and by Fontana pipe line and minor diversions for irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

 0.15

Nov.

' 0.5

-

Dec.

. 0.5

2.0

I'.O

> .4

20

5

.4

Jan.

> 0.3

Feb.

' 0.3

1.0

. .2

_

_

Mar.

> 0.2

4.0

2.0

.2

Apr.

 0.4

-

May

0.2

June

0.2

.3

.3

.3

.4

.6

.2

.3

.2

-

July

0.2

.2

.1

.1

.1

.2

.2

.3

.3

.3

.3 

.3

.3

.3

.3

.3

.3

.3

.2

.2

.3

.3

.3

.3

.5

.3

.5

.5

.3

.2

.2

Aug.

0.2

.2

.3

.3

.3

.3

.3

.3

.2

.9

.6 

.2

.2

.2

.2

.2

.2

.2

.3

.2

.3

.6

.2

.3

.3

.3

.4

.3

.3

.3

.3

Sept.

0.2

.3

.3

.4

.6

.3

.2

.3

.3

.3

.3

.3

.1

.4

.3

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.3

.2

1.1

.8

.6

-

Month

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

Hay........................................

July

Water year 1941-42 ......................

Secondfoot-days

39.7

9 "^ * *

141.25

Maximum

20

20

Minimum

.

-

Moan

1.28

31

.337

Runoff in 

acre feet

79

12

19

280

Note.- No usable gage-height record during period Oct. 1 to June 22 except partial record on 

Dec. 29; discharge computed on basis of one discharge measurement, 29 field estimates of flow, and 

hourly rainfall records; daily discharge not determined for flows less than 1 second-foot.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
64 SANTA ANA RIVER BASIN

Lytle Creek (west channel) at Colton, Calif.

Location.- Water-stage recorder, lat. 34004"00", long. 117°19'15", In San Bernardlno 

Grant, on F Street near Colton Avenue at Colton, San Bernardlno County. Altitude of 

gage, about 980 feet.

Records available.- January 1929 to September 1942. 

Average discharge.- 13 years (1929-42), 0.65 second-foot.

Extremes.- Maximum discharge during year not determined; no flow during most of year.

1329-42: Maximum discharge, 7,900 second-feet Mar. 2, 1938, by slope-area method; 

no flow during most of each year.

Remarks.- Records poor. Water diverted above station to debris cone above Foothill 

Boulevard for ground-water recharge and by Fontana pipe line and minor diversions 

for irrigation.

Discharge, in second-feet, water year October 1941 to September-1942

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.

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

0

0

0

Nov. Dec.

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

0

0

0

.1.1

0

Jan. Feb. Mar.

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

0

0

Apr.

0

o

0

0

0

0

0

0

0

.1

0

D

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

May June July Aug. Sept.

Month

Calendar year 1941 ......................

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

JUly. ......................................

Water year 1941-42 ......................

Secondfoot-days

16.6

0

0

.5

.1

0

0

0

0

0

1.4

Maximum

0.1

4.8

0

0

.5

.1

0

0

0

0

0

.5

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

Mean

0.003

0

.05

0

0

.02

.003

0

0

0

0

0

.004

Runoff in 

acre feet

0.2

0

1.4

33

0

0

1.0

.2

0

0

0

0

0

2.8

Spt>.- No gage-height record Oct. 1 to Jan. 6; discharge computed on basis of hourly rainfall 

r-aowSi.

tig* baaIs; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific irar time thereafter. 

to convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 65

Cajon Creek near Keenbrook, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°16'00", long. 

117"27'35", in SWiSEj sec. 12, T. 2 N., R. 6 W., 1,800 feet upstream from Lone Pine 

Creek and 14 miles north of Keenbrook. Altitude of gage, about 2,630 feet.

Drainage area.- 40.9 square miles.

Records available.- December 1919 to September 1942.

Average discharge.- 22 years (1920-42), 9.38 second-feet.

Extremes.- Maximum discharge during year, 94 second-feet Aug. 10 (gage height, 2.42 feet); 

maximum gage height, 2.45 feet Dec. 28; minimum dally discharge, 3.6 second-feet many 

times.

1919-42: Maximum discharge, 14,500 second-feet Mar. 2, 1938, by slope-area method; 

minimum, 0.05 second-foot June 25, 1920.

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

No diversions or regulation above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5"

6

7

8

9

10

11

12

13

14

15

16

17

18

1 QAS?

20

21

22

23

24

25

26

27

28

29

30

31

 

Oct.

4.9

4.9

5

5

5

5

4.9

4.9

4.9

4.9

4.9

5

5

5

5

4.9

4.9

4.7

5

9

6

13

13

9

7.5

6.5

6.5

6.5

6

6

6

Nov.

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

 5.5

5.5

6

6.5

6

5

4.9

5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

6

6

6

6

6

6

6

~

Dec.

6

6

6.5

6.5

6.5

6

6

6.5

6.5

30

12

7

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

11

6.5

7

14

7.5

19

41

32

20

Jan.

17

13

IS

11

10

10

9.5

9.5

9

9

9

8.5

8.5

8.5

8.5

8

7.5

7.5

7.5

7.5

7

8

7.5

7.5

7.5

7.5

7.5

7.5

7

7

7

Feb.

7

7

7.5

7.5

7

7

7

7

7

7

7

7

7

7

7

7

7.5

7.5

7.5

7

14

12

8

.5

.5

.5

.5

-

-

-

:. -- - - --' : ------ - ----- -. - 

Month

October. ...................................

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

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

Calendar year 1941 .................. ...

January. ...................................

February ...................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

7

7

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

7.5

7

7.5

8.5

14

10

9

8.5

8

7.5

.5

.5

.5

.5

6.5

6.5

Apr.

7

7

7.5

9.5

7.5

7.5

7

7

7

14

11

8.5

8

8.5

8

8

8

.5

6.5

6.5

6.5

7

7

7.5

8

7.5

-

Secondfoot-days

188 .8

169.4

328.5

8,906.8

272.0

213.5

231.5

233.0

190.5

154.3

115.9

148.1

115.1

2,360.6

Peak discharge.- Dec. 10 (6:30 p.m.) 80 sec. -ft.; Dec

May

7.5

7

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6

6

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

6

6

6

6

6

6

6

Maximum

13

6.E

41

877

17

14

14

14

7. a

6

4.1

19

4.3

41

. 28 (11:30

June

6

5.5

6

5.5

5.5

5.5

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5

5

4.9

4.9

4.7

4.7

4.7

4.7

4.7

4.7

4.7

4.5

4.5

4.5

4.5

-

Minimum

4.7

4.9

6

4.7

7

7

6.5

6*5

5.5

4.3

3.6

3.6

3.6

3.6

July

4.1

4.1

3.9

3.6

3.6

3.7

3.7

3.7

3.9

3.9

3.9

3.9

3.9

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.

3.6

3.6

3.6

3.6

3.6

3.6

Aug.

3.6

3.6

3.7

3.7

3.7

3.7

3.7

3.9

8.5

19

a6

a5.5

f4.7

4.5

4.3

4.3

4.1

3.9

4.1

4.3

4.3

4.3

4.3

4.1

4.1

3.9

3.9

4.1

4.1

4.1

4.1

Mean

6.09 

5.65

10.6

nA A

'

8.77

7.62

7.47

7.77

5^14

4.78

3.84

6.47

p.m.) 84 sec. -ft; Aua

Sept.

4.3

4.3

4.3

4.1

4.1

3.9

3.9

3.7

3.9

4.1

4.3

3.9

3.7

3.7

3.7

3.7

3.9

3.9

3.7

3.7

3.7

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.7

3.7

-

Runoff in 

acre feet

374

336

652

17,670

540

459

462

306

230

294

2S8

4,680

. 10 (4 a.m.)

94 sec.-ft.

a No gage-height record; discharge computed on basis of normal discharge recession curve.

f Computed on basis of partly estimated gage-height record.

Time basis; 1 Pacific standard time prior to 2 a.m., Feb. 9, 1942; pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
66 SANTA ANA RIVER BASIN

Meeks & Daley Canal near Colton, Calif.

Location.- Water-stage recorder, lat. 34°C4'00", long. 117°18'40" In San Bernardlno 

Grant, on Colton Avenue, 1 mile downstream from point of diversion from Warm Creek 

and 1 mile east of Colton, San Bernardlno County.

Records available.- September 1920 to September 1942. 

Average discharge.- 22 years, 10.6 second-feet.

Extremes.- Maximum dally discharge during year, 21 second-feet Sept. 22; no flow Mar. 22. 

TS20-42: Maximum daily discharge, 25 'eecond-feet Mar. 2, 1938; no flow at times.

Remarks.- Records good except those for period of no gage-height record and those below 

10 second-feet, which are fair. Canal diverts water from right bank of Warm Creek 

Is miles northeast of Colton for Irrigation In vicinity of Colton, Riverside, and 

Corona.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

6

11

12

13

14

15

16

1Y 1 fi

19

20

21

24

25

26

2Y

28

29

30

31

Oct.

18

18

18

18

18

18

19

20

20

18

20

20

19

18

18

18

18

19

16

.5

.5

.4

.4

.4

.4

.3

.3

.3

.3

.2

Nov.

0.2

.2

.2

.2

.2

.2

.2

.3

.2

1.7

5

3.6

.1

e

19

7.5

.3

.3

.4

.6

fl.2

a.e

a8

a!8

a!8

a!8

f!8

18

18

18

Dec.

IS

18

IS

18

18

17

17

17

18

7

.2

.2

.2

.2

.2

.2

.3

.3

.5

.3

.3

.3

.3

.Z

.3

.3

.3

.5

.3

.2

Jan.

0.3

.7

6

4.0

3.5

2.3

2.9

2.7

2.2

2.1

1.7

2.0

3.2

3.4

2.7

2.4

1.5

1.3

l.S

1.4

.6

.3

.6

1.0

.8

.8

.8

.7

.7

.0

Feb.

1.6

2.5

2.5

2.3

2.3

2.2

3.3

5

5

4.8

4.7

4.8

4.7

4.6

4.2

7.5

4.1

4.2

5

5.5

4.5

4.6

4.6

4.8

4.9

5.5

5.5

.

-

-

Month

Mnv

September ..................................

Water year 1941-42 ......................

Mar.

5.5

6.5

5.5

5

7.5

7.5

7

8

6.5

7.5

6.5

4.9

6.5

6

.4

.4

.4

.6

.4

.2

0

.1

.a

.2

.S.2

1.9

4.0

4.7

6

Apr.

13

IS

18

18

16

18

18

19

19

20

9.5

4.0

11

7.5

2.8

2.5

1.3

2.7

2.9

10

6.5

6.5

6

14

18

19

19

18

18

-

Secondfoot-days

3,189.2

110.7

358.9

558

579

566

4,201.4

May

17

18

18

18

19

19

16

16

18

18

18

1&

18

18

18

19

20

19

18

18

18

18

19

18

18

19

20

20

20

20

Maximum

18

7

e

so

20

21

21

June

19

2O

20

18

18

19

20

19

20

20

19

20

19

19

18

18

18

17

18

18

18

19

18

18

18

18

18

18

18

Minimum

17

0

July

18

19

18

IS

19

18

18

18

20

18

19

18

17

17

18

18

17

19

18

18

18

18

18

18

20

20

19

19

19

18

Aug.

18

19

18

19

19

19

17

18

19

19

19

19

20

19

19

19

19

18

18

18

19

19

20

18

18

18

17

19

20

20

Mean

12 0

8

JBF

 1 Q E

1 ft *t

18.9

11.5

Sept.

19

20

19

19

19

19

20

20

19

18

18

17

18

17

18

18

19

19

19

20

21

19

18

19

19

20

19

19

18

Runoff in 

acre-feet

257

220

1,120

8,340

a No gage-height record; discharge computed on basis of recorded range in stage, and diversion 

change indicated by record for Warm Creek near Colton.

f Computed on basis of partly estimated gage-height reoord.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 6 7 

Day Creek near Etlwanda, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°11'00", long. 

117"32'25", In SWt sec. 8, T. 1 N., R. 6 W., a quarter of a mile downstream from confluence of two main forks and 6 miles north of Etlwanda. Altitude of cage, about 

2,940 feet.

Drainage area.-- 4.8 square miles.

Records available.- January 1929 to. September 1942.

Average discharge.- 13 years, 4.98 second-feet.

Extremes.- Maximum discharge during year, 20 second-feet Dec. 10 (gage height, 1.78 

feetJ; minimum, 0.5 second-foot Sept. 23 (gage height, 0.62 foot).

1929-42: Maximum discharge, 4,200 second-feet Mar. 2, 1938, by rainfall-runoff 

studies; minimum, 0.1 second-foot Dec. 19, 20, 1933.

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

Etlwanda Water Co. diverted 1,880 acre-feet above station during the year.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1.3

1.6

2.4

.9

1.1

1.0

1.0

1.1

1.0

1.0

1.0

1.3

1.2

1.1

1.1

1.1

1.3

1.5

3.5

3.0

3.1

9.5

9.5

8.5

8

7.5

7.5

7.5

7

7

6.5

Nov.

6.5

6.5

6.5

6

6

6

6

5.5

5.5

5.5

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5,5

6

6

-

Dec.

4.3

3.5

3.8

3.6

3.6

3.4

3.3

3.3

3.6

11

8

7

6

5.5

5.5

5

5

5

5

4.S

4.8

4.7

5.5

5

5.5

6

6

7,5

13

11

10

Jan.

9

8.5

7.5

7.5

7

6.5

6.5

6

6

6

5.5

5.5

5.5

5

5

5

5

5

4.2

3.5

3.4

3.5

3.5

3.6

3.6

2.9

2.2

2.1

2.0

1.9

1.9

Feb.

1.9

1.9

1.9

1.9

1.9

1.9

al.9

al.9

al.5

a. 8

a. 8

a. 8

a. 8

a. 8

a. 8

a. 8

a. 8

a. 8

a. 8

a. 8

a8

a7

a6.5

6

6

5.5

5.5

3.3

-

-

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February. ..................................

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

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

 ay Mav ........................................

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

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

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

September. . . ................... ........ .

Water year 1941-42 ......... ............

Mar.

1.3

1.3

1.3

1.3

1.3

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.2

1.2

1.2

1.3

1.4

1.3

1.2

5

6

6

6

3.4

1.2

1.1

1.1

al.l

al.l

al.l

al.l

Apr.

a2.0

a3.0

a3.2

a3.6

a3.5

a2.5

1.2

1.1

1.1

1.7

1.6

1.6

1.6

1.9

1.6

1.5

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.2

-

Second 

foot-days

110.1

172.0

179.2

4,346.8

150.3

73.3

56.7

52.1

34.2

24.5

20.9

22.2

20,4

915.9

May

1.2

1.2

1.1

1.1

1.1

1.1

1.1

1.3

1.3

1.2

1.1

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.1

1.0

1.0

1.0

1.0

Maximum

9.5

6.5

13

100

9

8

6

3.6

1.3

1.0

.9

.9

.9

13

June

1.0

1.0

1.0

1.0

1.0

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

.8

.8

.7

.7

-

Minimum

0.9

5.5

3.3

.9

1.9

.8

1.0

1.1

1.0

.7

.6

.6

.6

.6

July

0.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.8

.8

.8

.9

.9

.8

.S

.8

Aug.

0.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.7

.7

.7

.7

.7

.6

.7

.6

.7

.7

.7

.7

.7

.7

.8

.8

.8

.9

.9

Mean

3.55

5.73

5.78

11.9

4.85

2.62

1.83

1.74

1.10

.32

.67

.72

.68

2.51

Sept.

0.9

.9

.8

.9

.8

.8

.8

/ .6

.6

.6

.6

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

-

Runoff in 

acre-feet

218

341

355

8,610

298

145

112

103

68

49

41

44

40

1,810

Peak discharge.- Dec. 10 (3:30 p.m.) 20 sec.-ft.; Dec. 29 (4 p.m.) 19 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range in stage, notes of diversion changes, and records for fucamonga Creek near Upland.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

Po convert war time to standard time, subtract 1 hour.
63 SANTA ANA RIVER BASIN 

Cucamonga Creek near Upland, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°10'15", long.- 

 117U 37'55", in NEi sec. 17, T. 1 N., R. 7 W., 6 miles north of Upland. Altitude of 

gage, about 2,550 feet.

Drainage area.- 10.1 square miles.

Records available.- December 1928 to September 1942.

Average discharge.- 13 years (1929-42), 8.69 second-feet.

Extremes.- Maximum discharge during year, 54 second-feet Dec. 10 (gage height, 2.81 feet); 

minimum, 1.7 second-feet Sept. 23-25.

1928-42: naximum discharge, 10,300 second-feet, Mar. 2, 1938, from rainfall-runoff 

study; minimum, 0.8 second-feet July 16, 17, Aug. 28 to Sept. 15, and Oct. 2-6, 1934.

Remarks.- Records good. No diversion or regulation from station.

Discharge, in second-feet, water year Octoberl94l to September 1942

Day

1

2

3

4

5

6

7

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.

5.5

5.5

5.6

5.5

6

6

5.5

6

5.5

5.5

5.5

6

6

5.5

5.5

5.5

5.5

5.5

6

7.5

7

8

9

S.5

7

6.5

7

7

7

6.5

6

Nov.

6

6

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

6.5

6

6

6

6

6

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

"

Dec.

5.5

5.5

6

6

5.5

5.5

5.5

5.5

6

23

13

8.5

7.5

7

6.5

6

6

6

6

6

6

6

S

7

7

7.5

7

7.5

20

14

12

Jan.

11

9

8.5

S.5

e

8

7.5

7.5

7.5

7.5

7

7

7

6.5

6.5

6.5

6.5

6

6

6

6

6.5

6

6

6

6

6

6

6

6

6

Feb.

6

6

6

6

6

6

6

6

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

7.5

11

7.5

6.5

6

6

6

5.5

_

.

-

Month

October ....................................

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

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

Calendar year!941 ......................

January ....................................

February. ..................................

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

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

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

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

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

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

September ..................................

Water year 1941-42 ......................

Mar.

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

6

6

6

7

7

6.5

6.5

6.5

ff

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5

5

5

4.9

4.9

Apr.

5

5

5.5

7.5

6

6

5.5

5~. 5

5.5

7.5

9.5

8

7.5

7.5

7.5

7

7

6.5

6

6

6

6

6

5.5

5.5

5.5

6

6

6

6

-

Secondfoot-days

194.5

171.5

248.5

7,559.8

214.5

171.0

175.8

190.0

14S.O

114.7

78.1

71.6

63.2

1,841.4

May

6

5.5

5.5

7.5

5

5

5

4.9

5

5

5.5

 5

5

4.9

4.9

4.9

4.S

4.5

4.4

4.3

4.3

4.3

4.5

4.5

4.5

4.4

4.3

4.2

4.2

4.1

4.1

Maximum

9

6.5

23

215

11

11

7

9.5

6

4.2

3.2

2.S

2.5

23

June

4.0

3.9

4.0

4.1

4.0

4.0

4.2

4.1

4.0

4.0

4.1

4.2

4.1

4.0

4.0

4.0

3.9

3.8

3.7

3.7

3.5

3.5

3.4

3.4

3.5

3.7

3.7

3.5

3.4

3.3

-

Minimum

5.5

5.5

5.5

4.4

6

5.5

4.9

5

4.1

3.3

2.0

2.1

1.8

1.8

July

3.2

3.1

3.0

3.0

2.9

2.8

2.8

2.8

2.S

2.8

2.S

2.S

2.S

2.6

2.6

2.5

2.6

2.4

2.4

2.4

2.3

2.1

2.1

2.1

2.1

2.0

2.0

2.0

2.1

2.1

2.1

Aug.

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.2

2.8

2.5

2.4

2.4

2.4

2.4

2.3

2.3

2.2

2.3

2.3

2.4

2.4

2.3

2.2

2.3

2.4

2.4

2.4

2.5

2.5

2.5

Mean

6.27

5.72

8.02

20.7

6.92

6.11

5.67

6.33

4.77

3.82

2.52

2.31

2.11

5.04

Sept.

2.5 2'.5

2.4

2.3

2.2

2.1

2.1

2.1

2.2

2.4

2.5

2.3

2.1

2.0

1.9

1.9

2.1

2.1

2.0

2.0

2.0

1.9

1.8

1.8

l.S

1.9

2.0

2.1

2.1

2.1

Runoff in 

acre-feet

386

340

493

14,990

425

339

349

377

294

22S

155

142

125

3,650

Peak discharge.- Dec. 10 (6 p.m.) 54 .sec. -ft.: Dec. 29 (7 «,. .! *4 »*»..*+

war time to standard time, subtract 1 hour. war time thereafter.
SANTA ANA RIVER BASIN 69 

San Jaclnto River near San Jacinto, Calif.

Location.- Staff gage, lat. 33°44'05", long. 116°49'45'1 , in SEi sec. 13, T. 5 S., R. 1 

E., at highway bridge, 8i miles southeast of San Jacinto. Altitude of gage, about 

1,980 feet.

Drainage area.- i40 square miles.

Records available.- October 1920 to September 1942.

Average discharge.- 19 years (1921-25, 1927-42), 26.5 second-feet.

Extremes.- Maximum discharge observed during year, 101 second-feet Mar. 20 (gage heighti 

2.24 feet); discharge less than 0.1 second-foot several periods.

1920-42: Maximum discharge, 45,000 second-feet (estimated) Feb. 16, 1927; no flow 

during several months of each year except 1940 and 1942.

Remarks.- Records fair. Gage read once daily. Several diversions above station. Flow 

regulated by Lake Hemet.

Cooperation.- Gage-height record furnished by Lake Hemet Water Co.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

 eO.03

.4

1.3

2.0

1.6

.8

.2

.2

.2

.2

Nov.

0.2

.2

.2

.2

.2

.2

.?

.3

.3

.3

.3

44

13

12

8

4.3

4.3

4.3

3.2

3.2

2.9

2.7

2.4

2.4

2.7

2.7

2.7

2.7

2.7

2.9

Dec.

2.9

2.9

2.9

5.5

4.9

4.3

3.7

3.7

4.0

10

13

9

8

6.5

7

5

4.9

4.6

3.7

3.4

2.7

2.7

2.2

2.0

1.3

5.5

2.9

2.7

44

42

48

Jan.

46

30

25

23

22

21

22

23

26

29

33

36

53

41

36

37

34

31

28

26

24

24

25

23

22

15

18

8

6

5.5

6

Feb.

6

5.5

6

6

3.4

2.2

.8

.4

' e.03

86

30

18

13

14

16

24

I

-

Month

October ....................................

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

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

Calendar year 1941 ........................

January. ...................................

February. ..................................

Harch. .....................................

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

Hay. ......................................

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

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

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

September . .................................

Water year 1941-42 ......................

Mar.

20

17

16

15

23

23

19

14

9 5

6

.2

26

19

16

26

69

88

92

80

101

44

34

30

33

39

41

52

31

28

22

16

Apr.

18

21

22

42

42

54

47

41

36

32

54

51

42

36

44

39

40

34

31

28

27

39

40

31

26

25

25

25

32

29

-

Secondfoot-days

7.56

125.7

265.9

26,991.46

798.5

231.69

1,049.7

1,053

239.58

9.32

-8*59

9.34

.39

3,793.27

May

26

24

20

19

18

17

16

10

10

10

10

9.5

8.5

6

5.5

5.5

5.5

5.5

5

5

1.8

1.6

e.02

Maximum

2.0

44

48

820

53

86

101

54

26

2.1

2.2

2.4

.1

101

June

eO.02

1.7

1.7

1.4

. e.Ol

2.1

2.1

-

Minimum

_

.2

1.3

0

5.5

_

.2

18

_

_

^

-

July

2.2

.1

' e.Ol

Aug.

 eO.Ol

2.4

2 4

2 4

5

5

5

4

Mean

0.244

4.19

8.58

73.9

25.8

8.27

33.9

35.1

7.73

.311

.084

.301

.013

10.4

Sept.

0.1

 e.Ol

"

Runoff in 

acre-feet

15

249

527

53 , 540

1,580

460

2,080

2,090

475

18

5.1

19

.77

7,520

e Daily discharge leas than 0.1 sec.-ft. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard tine, subtract 1 hour.
70 SANTA ANA RIVER BASIN

San Jacinto River near Elsinore, Calif.

Location.- Water-stage recorder, lat. 33°39'45", long. 117°17'45", near east line of 

sec. 9, T. 6 S., R. 4 W., 2 miles east of Elsinore and 2-i miles upstream from 

Elsinore Lake (low-water stage). Altitude of gage, about 1,270 feet.

Drainage area.- 717 square miles.

Records available.- January 1916 to September 1942.

Average discharge.- 26 years, 20.7 second-feet.

Extremes.- Maximum discharge during year, 11 second-feet (regulated) Oct. 2 (gage 

height, 2.92 feet); no flow during several months.

1916-42: Maximum discharge, about 16,000 second-feet Feb. 17, 1927 (gage height, 

11.8 feet); no flow for several months in most years.

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

fair. Storage and diversions above station for irrigation.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

4.6

8

.5

.5

.5

.5

.5

.5

8

8

8.5

8.5

8

7.5

Nov.

7

6.5

6-5

.7

.1

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

aO

1.0

6.5

6.5

6.5

-

Dec.

7.5

7.5

8

8

7

2.0

1.6

1.4

1.4

al.4

1.4

1.0

1.0

.9

1.0

.7

.8

.8

.9

1.0

1.1

1.3

Jan.

1.7

1.7

1.2

1.1

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

a. 9

a. 9

a. 8

a. 8

a . 7

a. 7

.6

.6

.6

.6

.6

.7

.8

.8

.8

.8

.8

Feb.

0.9

.9

.9

.9

.9

.8

.8

.8

.6

.6

.6

.6

.6

.6

.6

.6

.6

 6

.6

.6

.8

1.1

.8

.8

.8

.8

.8

.8

-

-

-

Mar.

0.8

.8

.8

.8

.8

.7

.7

.6

.6

.6

.7

.7

.7

.8

1.3

.8

.8

.8

.7

.7

.6

 6

.6

.7

.7

.7

.7

.7

.7

.7

.7

Apr.

0.7

.7

.7

1.0

.8

.8

.8

.7

.6

.8

1.5

.9

.8

.7

.6

.6

.5

.5

.4

.4

.4

.6

.5

.4

.3

.3

.4

.4

.5

.5

-

May

0.5

.5

.4

.4

.4

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.4

.4

.4

.3

.2

.1

.2

.2

.2

.3

.3

.3

.2

.2

.2

.3

June

0.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0-

July Aug. Sept.

Month

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

Uav

Water year 1941-42 ......................

Secondfoot-days

226.1

41.3

64.0

23,534.6

28.3

20.8

22.6

18.8

11.0

3.9

0

0

0

436.8

Maximum

8.5

7

8

1,120

1.7

1.1

1.3

1.5

.5

.3

0

0

0

8.5

Minimum

4.6

0

.7

0

.6

.6

.6

.3

.1

0

0

0

0

0

Mean

7.29

1.38

2.06

64.5

.91

.74

.73

.63

.35

.13

0

0

0

1.20

Runoff in 

acre- feet

448

82

127

46,680

56

41

45

37

22

7.7

0

0

0

866

a No gage-height record; discharge Interpolated or computed on basis of probable recession curve. 

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subract 1 hour.
SANTA ANA RIVER BASIN 71

Elslnore Lake at Elsinore, Calif.

Location.- Staff gage fastened to pier, lat. 33°40'35", long. 117°21'30", on northeast 

shore, In La Laguna Grant, at Aloha Beach Club, Elslnore, Riverside County. Datum of 

gage Is 1,230 feet above mean sea level. Gage heights have been reduced to elevations above mean sea level.

Records available.- December 1915 to September 1942.

Remarks.- Elslnore Lake overflows Into Temescal Creek which Is Its outlet, only during 

and after years of unusually heavy rainfall. After the rains of 1916 substantial 

outflow occurred during that year, continuing in decreasing volume until June 30, 

1917, since which date there has been no outflow. The maximum elevation of the lake 

since the beginning of this record Dec. 1, 1915, was 1,265.6 feet Mar. 20-25, 1916; 

and the elevation at the time of cessation of outflow was 1,259.7 feet above sea 

level. The lake was practically full on May 11-20, 1922 (elevation, 1,259.8 feet); 

Apr. 19-30, 1927 (elevation, 1,259.0 feet); May 10-24, 1938 (elevation, 1,259.0 feet); 

and May 13, 1941 (elevation, 1,258.8 feet). The minimum elevation recorded was 

1,226.6 feet In November and December 1936. During most years the rise In lake level 

resulting from winter rains was less than 1 foot, but In the water years 1922 and 1927 

it exceeded 14 feet, while In 1937 It was 24.5 feet, followed by a rise of 10.3 feet 

in 1938. The earlier history of the lake is published In Water-Supply Papers 426, 

429, and 441. Gage heights have been reduced to elevations above sea level.

Capacity table (elevation, In feet, and contents, In acre-feet)t

1,225 3,500

1,230 11,500

1,235 23,000

1,840

1,245

1,250

37,000

54,000

72,000

1,256

1,260

95,000

123,000

t Hardlng, S. T., Report on San Jaolnto River Hydrographlc Investigation, State of California, Division of Water Rights, 

1922, p. 80.

Elevation, In feet, water year October 1941 to September 1942

Day

1

2 

3

4 

5

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oot.

1,256.4

-

1,256.2

_

-

_

_

_

_

-

_

1,256.2

_

_

-

_

_

_

.

-

_

_

_

1,256.3

_

-

Nov.

-

-

_

_

-

.

_

_

_

-

_

_

_

_

-

_

_

_

1,256.2

_

_

-

_

_

-

Deo.

-

1,256.1

_

_

-

1,356.2

_

_

_

-

_

_

_

,

-

_

_

.

1,256.2

-

_

_

-

_

_

1,256.2

Jan.

-

-

-

-

_

_

_

1,256.3

-

_

_

_

_

-

1,256.3

.

.

_

-

_

.

.

_

_

-

Feb.

-

1,256.2

_

_

-

1,256.2

-

_

.

-

_

.

-

_

-

.

.

-

_

1,256.2

_

_

-

_

_

-

Bar.

-

1,256.2

_

_

-

_

-

_

-

-

_

_

-

_

-

_

_

1,256.1

-

-

_

-

-

.

.

-

Apr.

1,256.0

_

-

1,256.0

.

-

-

-

-

1,256.0

-

-

-

-

1,266.0

-

-

-

-

.

-

-

-

-

-

May

-

-

_

-

-

_

1,255.7

-

-

-

_

-

-

1,255.6

-

.

-

-

-

-

_

1,255.4

-

-

-

-

June

-

-

_

.

1,255.2

_

-

-

-

-

1,255.1

-

-

_

-

_

.

-

-

-

_

-

-

.

-

-

July

1,254.8

-

_

_

-

_

-

-

1,254.5

-

.

-

-

.

-

_

-

-

-

-

_

_

-

-

_

1,254.2

Aug.

-

-

_

_

-

_

-

-

-

-

_

-

_

-

-

.

-

-

-

1,253.6

1,253.6

-

-

^

-

-

Sept.

-

-

_

.

-

_

-

-

-

1,253.3

_

-

-

-

-

_

-

-

-

-

_

-

.

«

-

-

Time baala; Pacific standard time prior to 2 a.m., Feb. 

To convert war time to standard time, subtract 1 hour.

9, 1942; Pacific war time thereafter.
72 SANTA ANA RIVER BASIN 

Temescal Creek near Corona, Calif.

Location.- Water-stage recorder, lat. 33°50'30", long. 117°30'45", In El Sobrante De 

San Jaclnto Grant, half a mile upstream from site of old Blue Diamond Quarry and 4 

miles southeast of Corona, Riverside County. Altitude of gage, about 730 feet.

Records available.- January 1929 to September 1942. 

Average discharge.- 13 years, 5.54 second-feet.

Extremes.- Maximum discharge during year, 9.7 second-feet Mar. 14; minimum dally, 0.5 

second-foot July 26, 27, Aug. 2, 3.

1929-42: Maximum discharge, 14,900 second-feet Mar. 2, 1938, by slope-area 

method; no flow during large part of most years.

Remarks.- Records good except those for period of no gage-height record, which are 

fair. Many diversions and several storage reservoirs above station.

Cooperation.- Thirty-four discharge measurements furnished by Orange County Flood 

Control District and 16 discharge measurements furnished by Metropolitan Water 

District.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

3.2

3.6

3.2

3.2

3.4

3.2

3.2

3.6

3.4

3.2

3.2

3.1

3.4

3.1

2.9

3.4

3.4

3.4

3.6

3.4

3.1

3.7

4.3

4.3

4.3

4.3

4.6

4.6

4.4

4.3

4.3

Nov.

4.4

4.4

4.8

4.4

3.9

3.9

3.9

3.9

3.9

4.3

4.3

4.3

4.4

4.4

4.4

4.4

4.4

4.4

4.6

4.6

4.6

4.4

4.4

4.4

4.4

4.6

4.6

4.4

4.4

4.3

-

Dec.

3.7

4.4

4.1

4.3

3.7

3.9

3.9

3.9

4.3

5.5

5

5

5

5.5

5

5

5

5

5

5

5

5.5

5.5

5

5.5

6

6

6

6

6

6.5

Jan.

6

6

5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

6

6.5

7

7.5

7.5

8

8.5

8.5

8.5

9

8.5

8.5

8

8

8

8

7.5

7.5

7.5

7.5

Feb.

7.5 7.5"

8

8

7

7

6.5

6.5

6.5

7

7

6.5

6

4.5

4.5

4.5

4.5

4.0

3.8

3.8

5

e

7.5

6.5

6

6

6

6

-

-

-

Mar.

6

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

6

5.5

f5.5

6

6.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5

5

5

4.8

4.5

4.0

3.5

3.2

Apr.

2.8

3.4

3.2

3.1

2.9

2.9

2.9

2.9

3.5

3.6

4.3

4.6

4.8

5

4.5

4.8

4.8

4.8

4.8

4.8

5.5

6

5.5

5

5

5

5

4.8

4.5

4.3

-

May

4.0

3.S

3.5

3.2

3.2

2.9

2.6

2.4

2.3

2.2

2.1

2.0

1.9

2.0

2.0

2.0

2.2

2.4

2.4

2.4

2.2

2.0

2.0

2.0

1.8

1.8

1.5

1.8

1.4

al.4

al.3

June

al.3

al.3

al.3

al.2

al.2

al.4

al.8

f2.0

2.0

2.1

2.1

2.2

2.3

2.1

2.2

1.9

1.8

1.8

1.9

2.0

2.0

2.0

1.9

1.8

1.6

1.5

1.4

1.3

1.2

1.2

-

July

1.1

1.1

1.0

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.0

.9

.6

.3

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.6

.6

.6

.6

Aug.

0.6

.5

.5

.6

.6

.8

.9

.9

.9

1.0

1.1

1.0

1.1

1.1

.9

.9

.8

.8

.6

d.6

d.6

d.7

d.7

d.7

d.7

d.8

d.8

d.8

d.8

d.8

.9

Sept.

0.9

.9

.8

.8

.8

.6

.6

.6

.6

.6

d.6

d.6

d.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

-

Month

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

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

Water year 1941-42 ......................

Secondfoot-days

112.3 

130.5 

155.2

6,626.7

217.0 

171.6 

165.0 

129.0 

70.7 

51.8 

24.2 

24.5 

19.2

1,271.0

Maximum

4.6 

4.8 

6.5

272

9 

8 

6.5 

5.5 

4.0 

8.3 

1.1 

1.1 

.9

9

Minimum

2.9 

3.9

3»7

1.1

5.5 

3.8 

3.2 

2.8 

1.3 

1.2 

.5 

.5 

.6

.5

Mean

3.62 

4.35 

5.01

18.2

7.00 

6.13 

5.32 

4.30 

2.28 

1.73 

.78 

.79 

.64

3.48

Runoff in 

acre-feet

223 

259

308

13,140

430 

340 

327 

256 

140 

103 

48 

49 

38

2,520

a No gage-height record; discharge computed on basis of two discharge measurements and interpolation.

d Doubtful gage-height record; discharge computed on basis of interpolation and mean daily temperature records.

f Computed on basis of partly estimated gage-height record.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 73

San Antonio Creek near Claremont, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°12'50", long. 

 117U40"'00", In NWiSEi sec. 36, T. 2 N., R. 8 W., at highway bridge, half a mile

upstream from Southern California Edison Co.'s Sierra power plant and 8 miles

northeast of Claremont. Altitude of gage, about 3,400 feet.

Drainage area.- 16.9 square miles.

Records available.- March 1901 to September 1942.

Average discharge.- 25 years (1917-42), 10.8 second-feet. Average combined discharge 

of creek and conduit, 25 years (1917-42), 23.5 second-feet.

Extremes,.- Maximum discharge during year, 22 second-feet Dec. 10 (gage height, 1.79 

feet); minimum, 1.1 second-feet Sept. 25, 26.

1917-42: Maximum discharge, 21^400 second-feet (corrected) Mar. 2, 1938, by 

rainfall-runoff studies; minimum, less than 0.1 second-foot for several days In 

October 1934.

Remarks.- Records good. Southern California Edison Co.'s conduit diverts water above 

station. (See p. 75 .)

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2.9

2.9

6

8

8

7.5

7.5

7.5

7.5

7

7

7.5

7

5.5

3.3

3.2

3.2

3.1

3.3

3.7

3.4

3.4

3.6

3.3

3.2

3.2

3.3

3.1

2.9

2.9

2.8

Nov.

2.S

2.S

2.8

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.9

2 9

2.S

2.7

2.7

2.8

2.9

4.7

3.1

2.9

2.9

3.1

3.1

3.1

3.2

3.2

3.2

3.3

3.3

-

Dec

3.2

3.2

3.7

3.6

3.4

3.3

3.3

3.2

3.4

8

6

4.S

3.S

3.3

3.1

2.8

2.7

2.7

2.7

2.7

2.7

2.7

2.9

2.S

2.8

2.8

2.8

4.0

5.5

5.5

4.5

Jan.

4.1

3.6

3.4-

3.3

3.2

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

2.9

2.9

3.1

2.9

2.9

2.9

3.2

3.2

3.2

3.2

3.1

3.2

3.2

3.2

5.5

3.1

Feb.

3.1

3.1

3.1

2.9

2.9

2.9

2.9

2.9

2.8

2.7

2.6

2.6

2.7

2.7

2.6

2.6

2.6

2.7

2.7

2.7

3.4

4.0

3.2

2.9

2.8

2.8

2.S

2.8

-

-

-

Month

October. ........................... .... .

Novembe r ...................................

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

Calendar year 1941 ......................

January. ...................................

February ........................... .......

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

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

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

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

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

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

September. .................... ........ ...

Water year 1941-42 ......................

Mar.

2.S

2.8

2.8

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

3.3

3.4

3.3

3.2

3.1

3.1

3.1

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.S

2.8

Apr.

2.8

2.8

2.9

3.3

2.9

2.9

2.S

3.2

3.4

5

4.0

4.1

3.8

3.7

3.6

3.7

3.8

3.S

3.7

3.7

3.7

3.S

3.S

3.7

3.7

3.6

3.6

3.8

3.7

3.3

-

May

3.4

3.3

2.9

2.9

2.7

2.6

2.6

2.5

2.4

2.5

2.5

2.4

2.4

2.4

2.3

2.4

2.4

2.2

2.2

2.2

2.2

2.2

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

2.3

June

2.2

2.2

2.2

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.2

2.3

2.2

2.1

2.1

2.1

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.1

2.1

2.0

1.9

-

fSays Maximum Minimum

146.7 e 2.8

8S.8 4.7 2.7

111.9 S 2.7

13,674.2 146 2.7

100.3 5.5 2.9

80.5 4.0 2.6

90.7 3.4 2.8

106.5 5 2.8

76.3 3.4 2.2

63.3 2.4 1.9

56.5 2.0 1.6

45.0 1.6 1.3

42.3 1.6 1.3

1,008.8 8 1.3

July

2.0

1.9

1.9

1.9

2.0

2.0

1.9

1.9

l.S

1.9

1.9

1.8

1.9

1.9

1.9

1.9

2.0

1.9

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

Aug.

1.6

1.5

1.5

1.5

1.5

:

j

.4

.3

.4

.4

.6

.6

.6

.5

.5

.5

.4

.4

.3

.4

1.3

1.4

]

]

]

L.4

.4

.3

1.4

1.4

]

]

]

]

.4

.5

.5

.5

1.6

Mean

4.73

2.96

3.61

37.5

3 . 24

2 »S7

£ 93

3.55

2.46

2.11

1 .82

1.45

1.41

2.76

Sept.

1.6

1.6

1.5

1.5

1.4

1.4

1.4

1.4

1.5

1.6

1.6

1.5

1.4

1.3

1.3

1.3

1.3

1.4

1.3

1.3

1.3

1.3

1.3

1.4

1.3

1.3

1.4

1.4

1.5

1.5

~

Runoff in 

acre-feet

291

176

222

27,110

199

160

180

211

151

126

112

89

84

2,000

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.

To convert war time to standard time, subtract 1 hour.

530350 O - 43 - 6
74 SANTA ANA RIVER BASIN

Combined discharge, 

duit

in second-feet, of San Antonio Creek and Southern California Edison Co. 

near Claremont, Calif., water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

19

19

19

19

19

18

18

18

18

18

18

18

18

18

17

17

17

16

17

18

17

17

18

17

17

17

17

17

17

17

16

Nov.

17

17

17

17

16

16

16

16

16

16

16

15

16

15

15

15

15

15

15

15

15

14

14

14

14

14

14

14

14

14

-

Dec.

14

14

17

16

14

14

14

14

14

23

18

17

16

14

15

15

14

14

14

14

14

14

14

14

14

14

14

15

18

18

16

Jan.

16

16

15

14

14

15

15

15

15

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

Feb.

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

15

14

14

14

14

14

14

-

-

-

Mar.

14

14

13

13

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

Apr.

14

14

14

14

14

14

14

14

14

17

17

18

18

19

20

21

22

22

22

22

23

24

23

23

23

23

23

23

23

22

-

May

22

22

21

21

21

21

21

20

19

20

20

19

19

19

. 19

19

19

18

18

18

18

18

18

17

17

17

17

17

17

17

17

June

16

16

16

16

16

16

15

15

15

15

15

15

15

14

14

14

14

14

14

14

14

13

13

13

13

13

13

12

12

13

-

July

13

13

13

13

13

13

12

12

12

12

12

12

12

12

12

12

12

12

12

12

11

11

11

11

11

11

11

10

11

11

10

Aug.

10

10

10

10

10

10

10

10

11

13

12

12

11

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

Sept.

10

10

10

10

10

10

10

10

10

10

10

10

10

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

9

9

9

9

9

9

9

-

Month

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

Water year 1941-42 ......................

Secondfoot-days

546

457

470

443

432

428

319

5,301.0

Maximum

19

17

23

161

14

22

13

24

Minimum

16

14

14

14

14

13

9

Mean

17.6

15.2

15.2

54.9

14.3

13.9

18.9

14.3

11.8

10.3

14.5

Runoff in 

acre-feet

1,080

906

932

39,740

857

849

724

633

10,510

Time basisi Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA ANA RIVER BASIN 75

Southern California Edison Co.'s conduit near Clarenont, Calif.

Location.- At Southern California Edison Co.'s Sierra power plant, lat. 34°12'45", 

long. 117°40'15", in NWiSEi sec. 36, T. 2 N., R. 8 W., li miles downstream from intake and 8 miles northeast of Claremont. Altitude of gage, about 3,160 feet.

Records available.- January 1917 to September 1942. 

Average discharge.- 25 years, 12.6 second-feet.

Remarks.- Conduit diverts water from San Antonio Creek in SEi sec. 25, T. 2 II., R. 8 W. 

1 mile upstream from gaging station on San Antonio Creek near Clarenont. Water is 

used for power development and then for irrigation. Discharge is computed from 

record of output In kilowatts of Sierra power plant.

Cooperation.- Records furnished by Southern California Edison Co.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

16

13

11

11

11

11

11

11

11

11

11

11

13

14

14

14

13

14

14

14

14

14

14

14

14

14

14

14

14

13

Nov.

14

14

14

14

13

13

13

13

13

13

13

12

13

12

12

12

12

12

10

12

12

11

11

11

11

11

11

11

11

11

~

Dec.

11

11

13

12

11

11

11

11

11

15

12

12

12

11

12

12

11

11

11

11

11

11

11

11

11

11

11

11

12

12

12

Jan.

12

12

12

11

11

12

12

12

12

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

11

9

11

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

-

-

 "

Month

October . ...................................

Novembe r ...................................

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

Calendar year 1941 ......................

January. ...................................

February ...................................

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

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

Hay. .......................................

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

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

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

Septembe r ............ .....................

Hater year 1941-42 ......................

Mar.

11

11

10

10

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

Apr.

11

11

11

11

11

11

11

11

11

12

13

14

14

15

16

17

18

18

18

18

19

20

19

19

19

19

19

19

19

19

Second 

foot-days

404

365

356

6,363

346

308

339

463

515

368

306.0

277.5

243.0

4,290.5

May

19

19

18

18

18

18

18

18

17

17

17

17

17

17

17

17

17

16

16

16

16

16

16

15

15

15

15

15

15

15

15

Maximum

16

14

15

22

12

11

11

20

19

14

11

11

8.5

20

June

14

14

14

14

14

14

13

13

13

1?

13

13

13

12

12

12

12

12

12

12

12

11

11

11

11

11

11

10

10

11

-

Minimum

11

10

11

0

9

11

10

11

15

10

8.5

8.5

7.5

7.5

July

11

11

11

11

11

11

10

10

10

10

10

10

10

10

. 10

10

10

10

10

10

9.5

9.5

9.5

9.5

9

9

9

8.5

9

9

8.5

Aug.

8 5

8 5

8 5

8 5

8 5

8 5

8 5

9

10

11

10

10

9.5

9

9

9

9

9

8.5

9

9

9

9

9

9

8 5

8 5

8 5

8 5

8 5

8 5

Mean

13.0

12.2

11.5

17.4

11.2

11.0

10.9

15.4

16.6

12.3

9.87

8.95

8.10

11.8

Sept.

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8

8

8

8

8

8

8

8

8

8

.5

.5

.5

.5

.5

.5

.5

~

Runoff in 

acre-feet

801

724

706

12,620

686

611

672

918

1,020

730

607

550

482

8,510

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

To convert war time to standard time, subtract 1 hour.

ar time thereafter.
g SANTA ANA RIVER BASIN

Santiago Creek near Villa Park, Calif.

Location.- Water-stage recorder, lat. 33°49'10", long. 117°46'30", In SWi sec. 13, T. 

43., R. 9 W., fIve-elghths of a mile downstream from diversion dam of Serrano and 

Carpenter Irrigation districts and If miles northeast of Villa Park. Altitude of 

gage, about 420 feet.

Drainage area.- 83.8 square miles.

Records available.- June 1920 to September 1942.

Average discharge.- 22 years, 9.46 second-feet.

Extremes.- Maximum discharge during year, 2.0 second-feet Dec. 10 (gage height, 0.70 

foot); no flow for several periods.

1920-42: Maximum discharge, about 11,000 second-feet Feb. 16, 1927 (gage 

height, 8.4 feet), by slope-area method; no flow for several months each year.

Remarks.- Records poor. Irvine Co. and Serrano and Carpenter Irrigation Districts 

divert above gage. Flow completely regulated by Santiago Reservoir.

 1942

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

Oct.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.6

.6

a. 4

a. 2

a.l

f.l

f.l

a.l

a.l

a.l

Nov.

aO.l

a.l

a.l

a.l

a.l

aO

aO

aO

aO

fO

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0-

Dec.

0

0

0

.1

0

0

0

0

.1

.7

.5

.3

.1

.1

.3

.3

.2

.1

.1

.1

.2

.2

.2

.1

.2

.3

.2

.2

.3

.3

.2

Jan.

0.1

.1

0

0

0

0

0

0

0

0

.1.1.1.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

.1

.1

.2

.2

.2

.2

-

-

-

liar.

0.1

0

0

0

0

0

0

0

0

0

0

0

0

.3

.4

a. 3

a. 3

a. 3

a. 2

a. 2

a. 2

a.l

a.l

a.l

a.l

a.l

a.l

a.l

aO

aO

aO

Apr.

aO

aO

aO

aO

aO

0

0

0

.1

.2

.5

.5

.5

.4

.2

.2

.2

.1

.1

.1

.2

.3

.2

.1

.1

.1

.1

.1

.1

.1

~

May

0.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

June July Aug. Sept.

Month

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

Water year 1941-42 ......................

Secondfoot-days

2.4

.5

5.4

17,106.4

.6

1.4

3.0

4.5

.1

0

0

0

0

17.9

Maximum

0.6

.1

.7

1,220

.1

.2

.4

.5

.1

0

0

0

0

.7

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Mean

0.08

.02

.17

46.9

.02

.05

.10

.15

.003

0

0

0

0

.05

Runoff in 

acre- feet

4.8

1.0

11

33,930

1.2

2.8

6.0

3.0

.2

0

0

0

0

36

a No gage-height record; discharge computed on basis of one field estimate and recorded range in 

stage.

f Computed on basis of partly estimated gage-height record. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 

o convert war time to standard time, subtract 1 hour.

1942; Pacific war time thereafter.
SANTA ANA RIVER BASIN 77 

Santiago Creek at Santa Ana, Calif.

Location.- Water-stage recorder, lat. 33°46'00", long. 117°52'45", in Santiago de Santa 

Ana Grant, at end of Baker Street, Santa Ana, Orange County. Altitude of gage, about 

120 feet.

Records available.- January 1939 to September 1943. 

Average discharge.- 13 years, 7.68 second-feet.

Extremes.- Maximum discharge during year, 300 second-feet Dec. 10 (gage height, 3.70 

feet); no flow during most of year.

1939-42: Maximum discharge, 4,400 second-feet Mar. 2, 1938 (gage height, 7.40 feet), 

from rating curve extended above 1,200 second-feet by logarithmic plotting; no flow 

during most of each year.

Remarks.- Records fair except those for periods of doubtful gage-height record, which are 

poor. Irvine Co. and Serrano and Carpenter Irrigation Districts divert water above 

station.

Cooperation.- Ten discharge measurements furnished by Orange County Flood Control District.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

Z

S

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

Oct.

31

Nov. Dec.

0

0

0

0

0

0

0

0

.1

46

0

0

0

0

0

0

0

.8

8

23

17

19

21

5

11

11

.9

7

3.3

1.9

0

Jan.

0

0

0

0

6

6

0

0

0

0

0

.3

.1

8.5

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.2

Feb.

0.1

.1

0

0

.1

.2

.5

.1

.1

.1

.1

.2

.3

.1

0

.7

.5

.9

.7

.7

11

4.4

.9

.7

.7

1.2

2.8

2.4

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ..... .............................

February ...................................

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

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

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

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

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

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

September. ....... .........................

Water year 1941-42 ......................

Mar.

1.9

.4

.2

0

.2

.3

.2

0

0

1.8

0

d.l

d.5

d!7

.1

0

0

0

0

0

.7

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

d.l

d.6

d.8

d.2

d.3

d.3

d4.0

dl.2

d.l

dO

d.l

dO

d.l

d.2

d.l

dO

d.l

d.2

0

0

0

0

0

0

0

1.4

2.4

-

Secondfoot-days

0

0

175.0

14,534.5

21.3

29 . 6

23.4

12 o' 2

0

0

0

0

261.5

May

Maximum

0

0

46

1,100

8.5

11

17

4.0

0

0

0

0

0

46

June

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

July Aug.

Mean

0

0

5.65

39.8

.69

1.06

. 75

.74

0

0

0

0

0

.72

Sept.

Runoff in 

acre-feet

0

0

347

28,840

42

59

46

24

0

0

0

0

0

518

Peak discharge.- Dec. 10 (5 p.m.) 200 sec.-ft.; Feb. 21 (10 p.m.) 90 sec.-ft.; Mar. 14 (4 p.m.) 

lVB~3ec.-ft.

d Doubtful gage-height record; discharge comouted on basis of five discharge measurements and 

one field estimate of discharge.

Time basis; Pacific standard time orior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
78 SAN GABRIEL RIVER BASIN 

East Fork of San Gabriel River near Camp Bonlta, Calif.

Location.- Water-stage recorder, lat. 34°14'12", long. 117°48'30", In SEi sec. 22, T. 2 

N., R. 9 W., 1,000 feet upstream from mouth of Graveyard Canyon, 2& miles upstream 

from confluence with West Fork, and 2& miles west of Camp Bonlta.

Records available.- December 1932 to September 1942.

Extremes.- Maximum discharge during year, 349 second-feet Aug. 10 (gage height, 7.14 

feet); minimum, 10 second-feet Sept. 30.

1932-42: Maximum discharge, 46,000 second-feet Mar. 2, 1938, from rating curve 

extended above 21,300 second-feet by logarithmic plotting (computed by Geological 

Survey); minimum, 1.5 second-feet Oct. 1, 1934.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

34

34

33

34

33

33

31

31

29

28

26

32

30

29

30

29

29

29

32

41

41

41

36

35

35

34

38

38

37

36

34

Nov.

33

34

33

32

31

31

31

31

31

31

31

34

33

32

31

29

29

31

31

31

31

31

31

31

30

30

29

29

30

32

-

Dec.

31

30

36

37

34

31

30

30

30

73

61

4S

41

40

40

33

37

36

35

35

39

37

44

3S

40

41

38

45

130

86

72

Jan.

63

56

50

48

44

43

44

44

45

46

46

4S

46

45

44

45

45

45

45

44

43

43

43

43

41

41

41

43

41

40

40

Feb.

40

39

38

38

37

36

36

36

36

35

35

35

35

34

33

32

32

32

33

31

40

61

46

40

38

37

37

36

-

-

-

Mar.

36

36

36

35

35

35

35

36

35

33

37

35

34

44

45

43

43

44

44

43

41

41

41

41

40

39

39

39

39

39

3S

Apr.

39

39

41

96

73

61

54

52

50

65

76

72

68

70

66

64

66

63

60

60

63

64

63

60

59

57

57

59

57

53

-

May

53

52

52

52

50

43

48

48

46

46

46

44

41

40

40

43

43

43

41

40

39

39

40

39

39

39

38

38

37

36

35

June

35

35

34

35

34

32

32

32

31

31

31

32

32

33

31

30

28

29

28

27

28

28

28

27

27

27

26

25

25

24

-

July

23

23

22

22

22

21

21

21

21

21

21

22

21

21

20

20

20

20

19

18

18

IS

18

18

17

17

17

17

17

16

16

Aug.

17

18

18

18

17

17

17

17

18

72

31

27

26

24

22

20

18

19

18

19

19

17

17

17

18

17

17

17

18

18

18

Sept.

18

17

17

16

15

15

14

14

14

15

15

15

15

14

14

13

14

14

14

14

13

13

13

13

12

12

13

13

13

12

-

Month

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

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

Water year 1941-42 ......... ............

Secondfoot-days

1,032

934

1,383

67,167

1,395

1,038

1,201

1,827

1,335

897

608

646

12,720

Maximum

41

34

130

1,110

63

61

45

96

53

23

72

130

Minimum

26

29

30

26

40

31

33

39

35

24

16

17

12

Mean

33.3

31.1

44.6

1S4

45.0

37.1

3S.7

60.9

43.1

29.9

19.6

20.8

34.8

Runoff in 

acre-feet

2,050

1,850

2,740

133,200

2,770

2,060

2,330

3,620

2,650

1,780

1,210

1,280

25,230

Time baala; Pacific standard time prior to 2 a.m., Feb. 9, 1942; 

To convert war time to standard time, subtract 1 hour.

:ific war time thereafter.
SAN GABRIEL RIVER BASIN 79

San Gabriel River near Azusa, Calif.

Location.- Water-stage recorder, lat. 34°10'10", long. 117°53'16", in SWi sec. 13, T. 1 

N., R. 10 W., 1 mile downstream from Morris Dam and 3 miles northeast of Azusa. Altitude of gage, about 870 feet.

Drainage area.- 211 square miles.

Records available.- 1894 to September 1942.

Average dlscharpieT- 46 years (1896-1942), 113 second-feet. Average combined discharge of 

river and diversions, adjusted for storage and evaporation in Morris Reservoir and San 

Gabriel River flood-control reservoirs 1 and 2, 47 years (1895-1942), 162 second-feet.

Extremes.- Maximum discharge during year, 422 second-feet Apr. 20 (gage height, 4.94 

feet); minimum dally, 2.5 second-feet Sept. 14-22.

1894-1942: Maximum discharge, 65,700 second-feet Mar. 2, 1938, by computation of 

flow over spillway at Morris Dam; no flow for several months in each year 1894-1936, 

1940, and 1941.

Remarks.- Records good. Flow regulated by San Gabriel flood-control reservoirs 1 and 2, 

and ty Morris Reservoir of Metropolitan Water District of Southern California. Azusa 

Canal (formerly power canal of Southern California Edison Co.) diverts above hlghwater 

line of Morris Reservoir at point about 3 miles above station.

Cooperation.- Fifty-four discharge measurements furnished by Los Angeles County Flood

 Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting

chief engineer during the war emergency. 

Revisions.- Revised figures of runoff in acre-feet of combined flow of San Gabriel River

 ana Azusa Canal In the water year 1941 and superseding those published in Water-supply 

Paper 931 are given herein.

August 1941.........

September 1941......

7,050

4,710

'Voter year 1940-41 316,230

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

7.5 

7.5 

8 

8 

8

8 

8 

8 

.5 

.5

.5 

.5 

.5 

.5

.5 

.5

Nov.

7 

7 

6.5 

6 

6

5,5

5 

6 

6 

6

6 

6 

44

71 

71

73 

77 

80 

79 

79

77 

69 

59 

59 

59

59 

59 

59 

59 

59

Dec.

61 

61 

62 

61 

36

4.9

4.7 

4.7 

5 

8

5.5 

5.5 

6 

6.5 

6.5

7 

7 

7 

7 

7

7 

7 

7 

6.5 

7

7 

7 

7.5 

9.5 

8.5 

7.5

Jan.

.5

.5 

.5

.5

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

7.5 

8 

8 

8 

8

8 

8 

7.5 

6.5 

6 5.5'

Month

Oct 

Nov 

Dec

C

Jan 

Feb 

liar

Apr 

May

Jun 

Jul 

Aug 

Sep

W

ember ......................

alendar year 194 

uary .

t ember .....................

ater year 1941-42 ..........

Feb.

5.5 

5.5 

5 

5 

5

 .9 

.9

.7 

.7

.7 

.5 

.5 

.7 

.7

.7 

.5 

.2 

.2 

.2

.7 

.7 

.5

.5

.5 

.5

Secondfoot-days

228.0 

1,265.0 

454.8

117,568.0

227.5 

145.5 

182.6 

1,590.3 

106.6 

107.2 

116.0 

100.6 

255.4

4,779.5

Mar.

5 

5 

4.9 

4.7 

4.5

4.2 

4.2 

4.0 

4.0 

4.0

4.2

4.0 

4.0 

4.7 

7

7.5 

8.5 

S.5 

9

9

9 

9.5 

10 

7 

6

5.5 

5 

5 

4.9 

4.9 

4.9

Apr.

4.9 

4.9

5 

6 

7.5

8.5 

9 

9 

9 

9.5

8.5 

6 

6 

6 

5

5 

4.7 

4.5 

4.7 

210

25

370 

370 

370 

106

3.4 

3.0 

3.0 

3.0 

3.2

Maximum

8 

80 

62

3,870

8 

8.5 

10 

370 

3.3 

3.8 

3.8 

3.6 

33

370

May

3.2 

3.4 

3.4 

3.4

3.6

3.6 

3.6 

3.6 

3.6 

3.6

3.6 

3.6 

3. 

3. 

3.

3. 

3. 

3. 

3. 

3.

3. 

3. 

3. 

3. 

3.

3. 

3.

Z.6 

3.6 

3.6

Minimum

7 

5 

4.7

0

5.5 

4.2 

4.0 

3.0 

3.2 

3.4 

3.6 

3.0 

2.5

2.5

June

3.6 

3. 

3. 

3. 

3.

3. 

3. 

3. 

3. 

3.

3. 

3.

3. 

3. 

3.

3.

s.'e

3.6 

3.8

3.8 

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.8 

3.8

Mean

7.35 

42.2 

14.7

322

7.34 

5.20 

5.89 

53.0 

3.44 

3.57 

3.74 

3.25 

8.51

13.1

July

3.S

3.8 

3.8 

3.8 

3.8

3.8 

3.8 

3.8 

3.6 

3.6

3.6 

3.6 

3.6 

3.8 

3.8

3.6 

3.6 

3.8 

3.8 

3.S

3.8 

3.8 

3.8 

3.8 

3.8

3.8

3.9 

3.8 

3.8 

3.6 

3.6

Aug.

3.6 

3.6

3.6 

3.6 

3.6

3.4 

3.4 

?.4 

3.4 

3.4

3.4 

3.4 

3.2 

3.2 

3.2

3.2 

3.2 

3.2 

3.0 

3.0

3.0 

3.0 

3.0 

3.0 

3.0

3.0 

3.0 

3.0 

3.2 

3.2 

3.2

Runoff in

San Gabriel 

River

452 

2,510 

902

233,200

451 

289 

362 

3,150 

211 

213 

230 

200 

507

9,480

Sept.

3.0 

3.0 

3.0 

2.9 

2.9

2.7 

2.7 

2.7 

2.7 

2.7

2.7 

2.7 

2.7 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

2.5 

2.5

9.5 

17 

27

33 

33 

29 

24 

24

acre-feet

San Gabriel 

River and 

Azusa Canalf

4,600 

4,010 

7,280

319,600

6,130 

4,490 

5,110 

6,740 

4,530 

2,950 

1,960 

1,880 

1,340

51,020

t Combined runoff of river and Azusa Canal, adjusted for storage and evaporation in Morris Reservoir and releases from San Gabriel River flood-control reservoirs 1 and 2 using records furnished 

by city of Pasadena and Corps of Engineers, U. S. Army. 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.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
60 SAN GABRIEL RIVER BASIN 

San Gabriel River at Plco, Calif.

Location.- Water-stage recorder, lat. 34°00'20", long. 118°04'05", In Paso De Bartolo 

Grant, at Beverly Boulevard Bridge, half a mile east of Plco, Los Angeles County. 

Altitude of gage, about 180 feet.

Records available.- October 1928 to September 1942. 

Average discharge.- 14 years, 35.7 second-feet.

Extremes.- Maximum discharge during year, 412 second-feet Dec. 10; no flow during several 

periods.

1928-42: Maximum discharge, 22,700 second-feet Mar. 2, 1938; no flow for long 

periods each year.

Cooperation.- Records furnished by the Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

21

18

13

13

15

13

13

15

14

14

13

13

13

14

8

5.5

7.5

8.5

11

18

25

50

57

52

53

55

55

57

60

62

60

Nov.

64

62

62

62

62

60

60

58

55

52

55

57

57

58

57

60

58

58

60

60

62

58

58

53

50

52

52

52

52

52

-

Dec.

50

49

55

53

50

50

47

49

47

149

111

85

85

85

85

85

87

82

78

78

76

76

71

64

66

71

66

71

114

97

95

Jan.

88

83

85

85

86

86

88

86

35

85

83

80

80

81

80

80

80

80

81

81

77

80

83

81

86

90

90

85

86

88

86

'Feb.

83

75

74

75

75

72

72

72

71

71

68

71

71

74

71

75

74

72

71

71

83

93

86

81

78

77

85

81

-

.

-

Month

October ....................................

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

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

Calendar year 1941 ......................

January. ...................................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

78

80

78

75

75

75

 75

71

72

71

71

66

63

79

96

86

86

83

78

78

77

77

77

75

75

74

72

66

63

62

60

Apr.

58

56

56

58

58

58

58

57

55

59

71

. 66

63

71

67

63

67

63

60

59

57

60

57

56

56

57

57

57

57

58

-

Secondfoot-days

846.5

1/718

2,327

53,186.8

2,595

2,122

2,314

1,795

625.9

84.2

1.3

0

0

14,428.9

May

57

56

53

51

47

45

31

23

23

21

20

20

21

20

20

20

23

15

9.5

11

11

11

3.2

2.0

0

2.3

9

.3

.2

.2

.2

Maximum

62

OAo*

149

2,700

90

93

96

71

57

8.5

.8

0

0

149

June

0.3

0

1.0

1.2

0

0

.3

.2

.2

.6

7.5

8.5

6

6.5

5

4.7

3.7

3.7

3.7

5.5

7

6.5

4.8

3.2

.4

0

0

2.6

1.1

0

-

Minimum

5.5

50

47

0

77

68

60

55

0

0

0

0

0

0

July

0

0

0

.2

.8

.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

Aug.

Mean

27 3

57.3

75 1

146

83.7

75.8

74.6

59.8

20.2

2.81

.04

0

0

39.5

Sept.

Runoff in 

acre feet

1,680

3,410

4,620

105,500

5,150

4,210

4,590

3,560

1,240

167

2.6

0

0

28,630

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SAN GABRIEL RIVER BASIN 81

San Gabriel River at Spring Street, near Los Alaraltos, Calif.

Location.- Water-stage recorder, lat. 33°48'40", long. 118°05'30", in Los Alamltos 

Grant, on Spring Street Bridge, li miles west of Los Alamltos, Orange County. Altitude of gage, about 22 feet.

Records available.- October 1936 to September 1942 In reports of Geological Survey. 

1927-36 in riles of office of Los Angeles County Flood Control District, Los 

Angeles, Calif.

Average discharge. 15 years, 18.8 second-feet.

Extremes.- Maximum discharge during,year, 277 second-feet Dec. 11 (gage height, 6.05 

feet ); no flow during most of year.

1936-42: Maximum discharge, 27,300 second-feet (estimated) Mar. 2, 1938; no flow 

during most of each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

 H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec.

0

0

0

0

0

0

0

0

0

71

14S

90

50

35

34

41

38

35

24

30

21

33

36

33

33

40

21

40

109

94

57

Month

Jan.

49

43

21

37

25

28

18

37

34

31

28

43

45

33

35

38

40

32

34

36

39

42

37

50

58

69

70

58

47

34

32

Feb.

31

29

26

26

29

30

23

32

27

19

25

39

30

32

30

29

20

Mar.

19

23

20

26

27

33

36

33

34

37

42

31

25

60

111

62

49

21 ' 50

19 ' 47

18

37

75

42

39

33

31

25

23

-

-

-

October. ..................... .............

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

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

Calendar year 1941 ......................

Januarv. ......... ...... ..... ....

Febr 

Hare

uary. ..................................

h

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

43

39

38

33

28

26

24

25i

24

20

20

17

Apr.

20

21

20

28

23

2S

26

23

22

26

44

43

43

48

48

40

43

44

43

42

44

49

40

37

36

34

34

33

30

29

-

Secondfoot-clays

0

0

1,115

33,841. 1_

1,223

842

1,102

1,041

137.2

0

0

0

0

5,460.2

May

29

26

22

21

17

13

2.2

1.8

1.5

1.5

2.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

0

148

1,710

70

75 

111

49

29

0

0

0

0

148

June

Minimum

0

0

0

0

18

18 

17

20

0

0

0

0

0

0

July Aug.

Mean

0

0

36.0

92.7

39.5

30.1 

35.5

34.7

4.43

0

0

0

0

15.0

Sept.

Runoff in 

acre-feet

0

0

2,210

67,120

2,430

1,670 

2,190

2,060

272

0

0

0

0

10,830

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war tirce to standard time, subtract 1 hour.
82 SAN GABRIEL RIVER BASIN

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

Location.- Water-stage recorder, lat. 34°14'30", long. 117°51'50", near center of sec. 19, 

T. 2 II., R. 9 W., a quarter of a mile upstream from Camp Rincon, half a mile downstream 

from llorth Fork of San Gabriel River, and 6 miles downstream from San Gabriel floodcontrol reservoir 2.

Drainage area.- 102 square miles.

Records available.- October 1927 to September 1942.

Average discharge.- 15 years, 70.5 second-feet.

Extremes.- Maximum discharge during year, 288 second-feet Dec. 29 (gage height, 7.32 feet); 

minimum daily, 6.5 second-feet Sept. 7, 8, 9, 25, 26.

1927-42: Maximum discharge not determined, occurred on Mar. 2, 1938; no flow at 

times in 1928 and 1929.

Remarks.- Flow partly regulated by flood-control reservoir 6 miles above station.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

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

27

28

29

30

31

Oct.

32

31

30

30

31

41

89

111

85

66

64

59

24

25

25

26

25

25

31

42

34

38

34

36

33

31

32

42

66

63

70

Nov.

107

120

113

90

71

76

37

34

33

33

31

33

32

32

31

30

30

30

30

30

33

32

32

30

27

26

26

26

25

27

-

Dec.

25

24

31

30

26

25

24

24

31

138

81

53

51

47

44

42

42

40

38

36

36

37

44

42

46

53

44

63

183

114

87

Jan.

75

65

60

57

55

53

53

53

54

54

53

51

50

51

53

53

50

49

48

47

46

48

45

45

44

42

40

40

40

40

38

Feb.

40

40

40

40

40

40

38

36

36

35

35

35

35

36

36

36

36

35

34

33

53

84

48

42

40

38

38

37

-

-

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ...................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

36

36

36

36

36

36

36

36

36

36

42

40

38

48

56

48

46

44

42

42

40

40

40

38

37

36

36

36

36

36

35

Apr.

35

34

34

59

46

42

42

40

40

46

50

44

42

48

46

42

46

40

38

37

40

40

37

36

36

37

38

40

36

36

"

Secondfoot-days

1, 371

1,307

1,601

88,271

1,552

1,116

1,216

1,227

979

644

386

274.0

331.5

12,004.5

May

36

35

34

33

32

32

32

33

33

34

34

34

32

32

35

34

35

35

34

31

30

30

30

30

27

30

27

26

26

26

27

Maximum

111

120

183

2,870

75

84

56

59

36

27

15

18

19

183

June

27

27

26

26

26

25

26

26

26

25

24

24

24

22

22

21

20

20

19

18

17

17

17

16

17

17

18

17

17

17

-

Minimum

24

25

24

24

38

33

35

34

26

16

10

7

6.5

6.5

July

15

14

14

14

14

14

14

14

14

14

13

13

12

12

13

13

12

12

12

12

11

11

11

11

11

12

12

11

11

10

10

Aug.

10

10

10

10

9.5

9

8

8

9

18

IS*

10

9.5

9.5

9

8.5

8

8

8

7.5

7.5

7.5

.5

.5

.5

.5

.5

.5

.5

Mean

44.2

43 . 6

5i!e

242

50.1

39.9

39.2

40.9

31.6

21.5

12.5

8.84

11.0

32.9

Sept.

8.5

8.5

S.5

S.5

7.5

7

6.5

6.5

6.5

7.5

7.5

8.5

18

19

19

18

18

18

19

18

17

16

9.5

7

6.5

6.5

7.5

8

7.5

7.5

-

Runoff in 

acre-feet

2,720

2,590

3,180

175,100

3,080

2,210

2,410

2,430

1,940

1,280

766

543

658

23,810

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert war tine to standard time, subtract 1 hour.
SAN GABRIEL RIVER BASIN 82 

Rogers Creek near Azusa, Calif.

Location.- Water-stage recorder, lat. 34°09'55", long. 117°54'20", In NWiNWi sec. 23, 

T. 1 N., R. 10 W., half a mile upstream from mouth and 2s miles north of Azusa, 

Altitude of gage, about 800 feet.

Drainage area.- 6.4 square miles.

Records available.- May 1916 to June 1917 (discharge measurements only), October 1917 

to September 1942.

Average discharge.- 25 years, 3.09 second-feet.

Extremes.- Maximum discharge during year, 32 second-feet Dec. 29 (gage height, 4.23 

feet); no flow for part of year.

1917-42: Maximum discharge, about 2,600 second-feet Apr. 7, 1926; no flow for 

parts of each year.

Remarks.- Records good except for days of no gage-height record and for periods of very 

low flow, which are fair. Entire flow diverted above station at times.

Cooperation.- Seventeen discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting 

chief engineer during the war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

0

.2

.1

.1

.1

.1

.1

.1 

.1

.1

.2 

.3

" .4.3

.3

.3

,4

.6

1.2

.9

1.8

1.2

.9

.8

.9

1.0

.9

.8

.8

.7

Nov.

0.7

.7

.7

.7

.6

.6

.5

.4

.3 

.3

.3

.5 

.6

.6

.4

.4

.4

.4

.3

.4

.5

.5

.5

.5

.5

.5

.5

.4

.5

.5

-

Dec.

0.4

.2

.7

1.2

1.0

1.0

1.0

1.1

1.2 

9

3.7

1.5

1.4

1.2

1.2

1.2

1.2

1.1

1.1

1.1

1.1

2.2

1.7

1.5

2.8

2.0

3.1

17

7.5

5.5

Jan.

4.2

3.0

2.2

1.7

1.5

1.5

1.4

1.4

1.4 

1.1

1.1

1.0

.9

.9

.8

.9

.8

e..8

a. 8

a. 9

1.0

1.0

a. 9

a. 9

.9

.9

1.0

.9

.9

.8

Feb.

1.0

1.0

.9

.9

.9

.9

.8

.7

.6

.7

.7

.6

.6

.5

.6

.7

.7

.6

.5

1.4

3.7

1.4

1.1

1.0

.9

.9

1.0

-

-

-

Uar.

0.9

.8

.8

.8

.8

.8

.7

.6

.5 

.5

1.0

1.1

3.2

3.2

2.2

1.7

1.4

1.2

1.1

1.1

1.1

1.0

1.0

1.1

.9

.3

.3

.3

.2

.2

Apr.

0.2

» .2

.2

1.8

.7

.6

.6

.5

.5 

.8

1.5

1.1 

1.0

2.0

1.8

1.2

1.7

1.2

1.1

1.1

1.2

1.2

1.2

1.0

1.0

1.0

1.0

1.1

1.1

.8

-

May

0.7

.7

.7

.4

.2

.2

.2

.2

.2 

.2

.2

o

.1

.1.1

.1.1.1

 e.04

June

' eO.02

0

0

0 ,

e.Ol

,

0

0

0 -

July Aug. Sept.

Month

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

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

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

Water year 19*1-42 ......................

Secondfoot-days

15.7

3,860.4

38.6

26.0

32.0

30.4

5.22

.44

0

0

0

240.76

Maximum

1.8

188

4.2

3.2

0

0

0

17

Minimum

0

.2

0

.8

0

0

0

0

Mean

2.51

.015

0

0

0

.660

Runoff in 

acre- feet

31

154

7,650

77

63

60

10

.87

0

0

0

477

Peak discharge.- Dec. 10 (12 m.) 19 sec.-ft.; Dec. 29 (2:30 a.m.) 32 sec.-ft.

a No gage-height record; discharge computed and interpolated on basis of two discharge measurements. 

e Dally discharge less than 0.1 sec.-ft.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

convert war time to standard time, subtract 1 hour.
84 SAN GABRIEL RIVER BASIN 

Fish Creek near Duarte, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 340 10'00n , long.

 ir7"55"'25", In SWiSWi sec. 15, T. 1 N., R. 10 W., three-quarters of a mile upstream 

from mouth of canyon and 3 miles northeast of Duarte. Altitude of gage, about 1,000 

feet (from topographic map).

Drainage area.- 6.5 square miles.

Records available.- July to September 1916, July 1917 to September 1942.

Average discharge.- 25 years (1917-42), 4.23 second-feet.

Extremes.- Maximum discharge during year, 44 second-feet Dec. 10 (gage height, 1.41

 feet); minimum dally, 0.1 second-foot many days in July, August, and September.

1916-42: Maximum discharge, about 2,180 second-feet Apr. 4, 1925; no flow during 

periods in 1919-21, 1924, 1929-30.

Remarks.- Records fair. No diversions or regulation above station.

Cooperation.- Nineteen discharge measurements furnished by Los Angeles County Flood Con-

 trol District, through H. E. Hedger, chief engineer and II. E. Salsbury, acting chief 

engineer during the war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3

4 

5

6 

7 

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.

1.0 

.9

.e

.9 

1.0

1.2 

1.2 

1.5

1.3 

1.1

1.1 

1.5 

1.8 

1.7 

1.6

1.5 

1.5 

1.5 

2.1 

2.3

2.2 

3.2 

2.1 

2.1 

1.9

1.8 

2.2 

2.1

1.9

l.S 

1.7

Nov.

1.7

1.7 

1.6 

1.6

1.5 

1.5 

1.5 

1.5 

1.5

1.5

1.8 

1.6 

1.6 

1.5

1.5 

1.6 

1.5 

1.5 

1.5

1.4 

1.4 

1.4 

1.3 

1.2

1.2 

1.1 

1.0 

1.3 

1.3

Dec.

1.2

2.8

1.7 

1.4

1.3 

1.3 

1.3 

1.4 

23

4.6 

3.0 

2.4 

2.1

i.e

1.6 

1.5 

1.4 

1.2 

1.2

1.2 

1.2 

2.6 

1.6 

1.6

2.7 

1.6 

5

id

10

7

Jan.

4.9

3.5

3.3

3.2 

2.9 

2.9 

2.7 

2.6

2.3 

2.3 

2.3 

2.4 

2.4

2.2 

2.2 

2.0 

1.8

1.7

1.6 

1.9 

1.6 

1.6 

1.5

1.5 

1.4 

1.4 

1.4 

1.3 

1.2

Feb.

1.2

1.2

1.3

1.4 

1.4 

1.4 

1.4 

1.4

1.5 

1.5 

1.5 

1.4 

1.4

1.4 

1.4 

1.4 

1.3 

1.3

2.8 

8.5 

2.4 

1.9

1.7

1.6 

1.6 

1.5

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apr!

June 

July 

Augu 

Sept

Ha

mb«r ...................................

lendar year 1941 

ary

1. .....................................

ter year 1941-42 ...............

liar.

1.5

1.3

1.3 

1.2 

1.2 

1.2 

1.2

1.7 

2.1 

2.0 

5 

6

3.7 

2.8 

2.6 

2.3 

2.2

2.1 

2.1 

2.1 

2.1 

2.1

2.0 

1.9

1.7 

1.6 

1.5 

1.4

Apr.

1.4

1.5

2.0

1.9 

1.8 

1.7 

1.7 

2.1

2.1 

1.8 

1.7 

4.2 

2.7

2.2 

2.9 

2.2 

1.9

1.8

2.4 

2.2 

1.9 

1.6 

1.6

1.6

1.6 

1.8 

1.6 

1.6

Secondfoot-days

50.5 

44.0 

109.9

4,751.7

71.5 

49.3 

64.2 

61.6 

33.5 

21.8 

7.2 

4.2 

4.5

522.2

Peak discharge.- Dec. 10 (12 m.) 44 neo.-ft.; Dec. 29

Bay

1.6

1.

1.

1. 

1.

1. 

1. 

1.

1. 

1. 

1.

1. 

1.

1.

1. 

1. 

1.

1.

1. 

1.

i!i.

Maximum

3.2

1.8 

23

255

4.9 

8.5 

6 

4.7 

1.6 

1.0 

.5 

.2 

.3

23

(2:30 a.m.

5 

3 

2

3 

2 

2 

2 

2

1 

0 

0 

9 

9

0 

0 

0 

9 

S

8 

0 

0 

0 

0

0

0 

9 

9 

0 

0

June

1.0 

.9 

.8

.8 

.8 

.9 

.9 

.8

.8 

.9 

.9 

.8 

.8

.8 

.8

.7 

.7 

.6

.5 

.5 

.5 

.4 

.5

.5 

.6 

.6 

.5 

.5

Minimum

O.S 

1.0 

1.2

1.0

1.2 

1.2 

1.2 

1.4 

.8 

.4 

.1 

.1 

.1

.1

July

0.5

.4 

.4 

.3

.2 

.2 

.2 

.2 

.2

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.2 

.2

.2 

.2 

.2 

.1 

.1

.1 

.1 

.1 

.1 

.1 

.1

Aug.

0.1

.1 

.1 

.1

.1 

.1 

.1 

.1 

.2

.2 

.2 

.2

.2

.a

.2 

.2 

.1 

.1 

 1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.2 

.S 

.2

He an

1.63 

1.47 

3.55

13.0

2.31 

1.76 

2.07 

2.05 

1.08 

.73 

.23 

.14 

.15

1.43

36 eeo. -ft.

Sept.

0.3

.3 

.3 

.2

.2 

.2

.1 

.1 

.1

.2 

.2 

.2 

.1 

.1

.1 

.1 

.1 

.2 

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

Runoff in 

aore-fe«t

100 

87 

218

9,420

142 

98 

127 

122 

66 

43 

14 

8.3 

8.9

1,030
SAN GABRIEL RIVER BASIN 85

Sawplt Creek near Monrovia, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°10'25", long. 

117"59'30", In NEtSWi sec. 13, T. IN., R. 11 W., 0.1 mile downstream from natural 

channel of Monrovia Creek (channel formed by road construction diverts most of 

Monrovia Creek flow around the station). Altitude of gage, about 1,100 feet (from 

topographic sheet).

Drainage area.- 5.3 square miles (Including that of Monrovia Creek). 

Records available.- November 1916 to September 1942.

Average discharge.- 25 years (1917-42), 1.27 second-feet (Including diversion by Monrovia 

pipe line, 2.63 second-feet).

Extremes.- Maximum dally discharge during year, 2.0 second-feet Mar. 15; no flow during 

several periods.

1916-42: Maximum discharge, about 2,000 second-feet Apr. 7, 1926, estimated from 

flow of Rogers Creek; no flow during parts of most years.

Remarks.- Records fair. Figures given herein are sum of flow over control plus that 

portion of Monrovia Creek discharge which by-passes the station. By-pass flow computed on basis of seven discharge measurements and records of Monrovia Creek. Regulation at flood-control dam above station and diversions by city of Monrovia.

Cooperation.- Records of discharge of Monrovia Creek and 13 discharge measurements of 

Sawplt Creek furnished by Los Angeles County Flood Control District, through H. E. 

Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the war 

emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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 1

1

1

1

1

0

0

0

0

0

0

.2

.2

0

0

0

0

0

.2

.4

.5

.4

.4

.4

.1

.1

.5

.4

.1

.1

.1

Nov.

0.1

0

0

0

0

0

0

0

0

0

.1

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Dec.

0

0

.1

.1

.1

0

0

0

.2

1.2

.5

.3

.2

.1

0

0

0

0

0

0

0

0

.3

.2

.1

.4

.1

.7

1.9

1.4

.7

Jan.

0.4

.4

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

1

1

4

3

1

1

0

0

0

Month

October ..........................

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

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

Calendar vear 1941

Janu 

Febr 

Hare

ary ..........................

uary ......................

h. ...........

April ....................... . Hay..............................

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

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

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

September ........................

Water year 1941-42 ............

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.4

1.0

.6

.4

.4

.1

.1

0

-

-

~

Secondfoot-days

4.6

.4

S.6

1,423.0

2.1 

3.0 

8.6

12. S

.4

0

0

0

0

40.5

Mar.

0

0

0

0

0

0

0

0

0

0

.4

.7

.9

1.5

2.0

1.1

.8

.3

.3

.1

.1

.1

0

0

0

.1

.1

0

0

0

.1

Apr.

0.1

.1

.2

1.0

.9

.8

.6

.2

.2

.6

1.0

1.0

.S

1.6

.7

.2

.5

.2

.2

.1

.3

.3

.2

.2

.2

.1

.1

.1

.2

.1

"

Maximum

0.5

.2

1.9

63

.4

1.0 

2.0

1.6

.1

0

0

0

0

2.0

May

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

0

0

0

0

0

0

Minimum

0

0

0

0

0 

0 

0

.1

0

0

0

0

0

0

June

Mean

0.15

.01

.28

3.91

.07 

.11 

.28

.43

.01

0

0

0

0

.11

July Aug.

Runoff In 

acre-feet

9.1

.8

17

2,830

4.2

6.0 

17

25

.S

0

0

0

0

80

Sept.

Diversion 

In 

acre-feetl

145

147

111

_

122 

120 

119

110

120

104

88

79

77

1,340

t Diversion to Monrovia pipe line. Records furnished by city of Monrovia.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard tine, subtract 1 hour.
SAN GABRIEL RIVER BASIN 

San Dinas Creek near San Dimas, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34008'45" lonr 

117 45'35 , in SWiNEi sec. 25, T. 1 II., R. 9 W., at mouth of San Dimas Canyon, 0.7 ' 

mile downstream from flood-control reservoir and 3 miles northeast of San Dimas 

Altitude of gage, about 1,245 feet.

Drainage area.- 18.3 square miles.

September 1916 (Discharge measurements only), December 1916

Average discharge.- 25 years (1917-42), 4.60 second-feet.

Extremes.- Maximum discharge during year, 24 se'cond-feet Dec. 12 (gage height, 1.20 feet)' 

minimum daily, 0.2 second-foot many days.

1916-42: Maximum discharge, about 4,250 second-feet Mar. 2, 1938, from records of 

release at flood-control reservoir; no flow for several months during most years.

Remarks.- Records good. Flow regulated by flood-control dam above station. San Dimas 

water Co. diverts water just below gage for irrigation.

Cooperation.- Fifty-five discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury, actinr 

chief engineer during the war emergency. '

Discharge, in second-feet, water year October 1941 to September 1943

Day

1

2

3

4

5

6

7

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.

6.5

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

6.5

6.5

6.5

6.5

6.5

6.5

3.1

.5

.4

.4

.4

.4

.4

.4

.3

.3

Nov.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

1.1

2.5

1.3

.8

2.2

3.0

3.0

4.6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5

5

5

5

-

Dec.

5

5

5

5

5

5

5

5

5 

5.5

5.5

17

22

21

8.5

.4

.4

.4

.4

.5

.5

.5

.6

.5

.5

8

17

16

14

5.5

.7

Jan.

0.7

.5

.5

.4

.3

.3

.3

.2

.2

* 2

.2

5.5

9.5

9.5

9.5

9

8.5

8.5

8.5

3.5

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Feb.

0.2

.3

.3

.4

.4

.4

.4

.4

3.3 

8

8

8

8

8

8

8

8

7

5

3.5

1.8

1.3

.4

.4

.4

.4

.4

.4

-

-

-

Mar.

0.3

.3

.4

.6

.9

1.0

1.0

1.0

1.2

1.3

.4

.4

.7

.7

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.2

.2

.2

.2

Apr.

0.2

.2

.2

.4

 2

.2

.2

.2

.2

.4

.4

.4

.4

.5

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

-

Hay

0.4

.4

.4

.3

.3

.3

2.0

-E.6

2.6

2.7

2.6

2.6

2.7

2.7

2.8

2.8

2.9

2.9

3.0

3.1

3.1

3.3

3.3

3.1

3.1

3.0

2.9

K.9

2.9

3.0

June

3.0

3.0

2.9

3.0

3.1

3.3

3.4

3.4

3.4

3.3

3.3

3.1

3.0

3.0

2.9

2.9

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.8

2.7

2.6

2.6

2.6

1.7

-

July

0.7

.7

.8

1.0

1.0

.9

.9

.9

.9

1.8

1.2

.9

1.0

1.5

1.5

1.5

4.7

2.0

2.0

2.0

2.0

2.1

2.1

2.2

2.2

2.3

2.3

2.3

2.3

2.4

Aug.

2.1

1.3

1.0

1.0

1.0

1.0

1.0

1.0

1.0

2.3

3.0

4.5

3.0

1.4

1.3

1.4

2.2

2.7

2.8

2.7

2.7

2.6

2.4

2.2

1.2

1.2

1.2

1.2

1.2

1.3

Sept.

1.4

1.5

1.5

2.0

2.1

2.1

2.2

2.3

2.2

2.1

2.1

2.0

1.9

1.9

1.8

1.6

1.7

1.8

1.8

1.8

1.9

1.7

1.7

1.8

1.9

3.3

4.0

4.1

4.1

-

Month

Water year 1941-42 ......................

Secondfoot days

48 2

953.1

Maximum

Qp

9

4 5

22

Minimum

.2

Mean

2 52

3 25

37

2 93

n -I c

£, t ±<J

2.61

Runoff in 

acre feet

285

Ico

1,890

Time basis; Mountain standard time prior to 2 a.m., Feb. 9, 1942; mountain war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SAN GABRIEL RIVER BASIN 87

Dalton Creek near Glendora, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°09'25", long. 

 117U49'55", In center of sec. 21, T. 1 N., R. 9 W., a quarter of a mile upstream from

mouth of canyon, and 24 miles northeast of Glendora. Altitude of gage, about 1,125

feet (from topographic map).

Dralnace area.- 7.5 square miles.

Records available.- December 1919 to September 1942.

Average discharge.- 22 years (1920-42), 1.23 second-feet.

Extremes.- Maximum daily discharge during year, 1.6 second-feet Oct. 2, July 25; no flow 

for several periods.

1919-42: Maximum discharge, about 850 second-feet Mar. 2, 1938, from record of 

release from reservoir upstream; no flow for several months of each year.

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

Glendora Irrigation Co. diverts water above gage through 10-Inch pipe line. Storage 

at flood-control dam about 1 mile upstream.

Cooperation.- Forty-eight discharge measurements furnished by Los Angeles County Flood 

Control District, through H. E. Hedger, chief engineer, and M. E. Salsbury, acting 

chief engineer during the war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.1

1.6

1.5

.6

.7

.9

.4

.3

.2

.1

.1

.1

.2.'1

0

0

.1

.2

.2

.2

.3

.4

.3

.2

.2

.2

.2

.4

.3

.2

.2

Nov.

0.2

.2

.1

.1

.2

.2

.1

.1

.1

.2

.2

.3

.3

.3

.3

a. 3

a. 3

a. 3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

-

Dec.

0.3

.3

.5

.4

.3

.3

.2

.2

.3

1.5

.6

.4

.4

.4

.4

.3

.2

.2

.2

.2

.2

.2

.3

.2

.2

.3

.2

.3

.8

.7

.7

Jan.

0.6

.5

.4

.3

.3

.3

.2

.2

.2

.2

.2

.3

.3

.2

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Feb.

0.2

.2

.2

.1

.1

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.4

.3

.3

.3

.2

.2

.2

-

-

-

Month

October. .................. .... . . ......

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

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

Calendar year 1941 ......................

January. ...................................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

0.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.2

.2

.2

.9

.5

.4

.4

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

Apr'.

0.1

.1

.1

.2

.2

.2

.2

.1

.1

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

~

Secondfoot-days

10.5

7.4

11.7

1,327.45

8.3

4.9

7.1

5.5

3.0

.9

3.1

4.8

1.5

68.7

May

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

0

0

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Maximum

1.6

.3

1.5

83

.6

.4

.9

.3

.2

.1

1.6

.4

.1

1.6

June

0.1

.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

0

0

.1

0

-

Minimum

0

.1

.2

0

.2

.1

.1

.1

0

0

0

0

0

0

July

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.6

1.6

.6

.2

.1

0

0

0

Aug.

0

0

0

.3

.2

0

0

0

0

0

0

0

.2

.4

.3

.3

0

0

.2

.3

.3

.4

.4

.4

.2

.2

.2

.2

.1

.1

.1

Mean

0.34

.25

.38

3.64

.27

.18

.23

.18

.10

.03

.10

.15

.05

.19

Sept.

0.1

.1.1

.1

.1

.1.1

.1

.1.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Runoff in 

acre-feet

21

15

23

2,630

16

9.7

14

11

6.0

1.8

6.1

9.5

3.0

136

a No gage-height record; discharge computed on basis of recorded range in stage. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

TO convert war time to standard time, subtract 1 hour.
QQ SAN GABRIEL RIVER BASIN 

oo

Little Dalton Creek near Glendora, Calif.

Location.- Water-stage recorder, lat. 34°10'05", long. 117°50'15", In SEi sec. 17, T. 1 

 N., R. 9 W., about three-quarters of a mile upstream from mouth of canyon, and 2t 

miles northeast of Glendora. Altitude of gage, about 1,330 feet.

Drainage area.- 3.3 square miles.

Records available.- January 1929 to September 1942.

Average discharge.- 13 years, 0.93 second-foot.

Extremes.- Maximum discharge during year, 10 second-feet Dec. 29 (gage height, 0.72 foot); 

no flow part of year.

1929-42: Ifeximum discharge, 960 second-feet (estimated) Mar. 2, 1938; no flow for 

several months In each year.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second feet, water year October 1941 to September 1942

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.

0

0 

0

.1

.1

.1

.2

.2

.2

.2

.1

.1

.1

0

0

0

0

0

.1

.1

.2

.3

.3

.2

.2

.2

.3

.2

.2

.2

.2

Nov.

0.2

.2 

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

-

Dec.

0.2

.2

.2

.2

.2

.2

.2

.2

1.2

.8

.4.'4

.4

.3

.3

.3

.3

.3

.2

.2

.3

.6

.8

.8

.9

.8

1.1

2.5

2.1

1.8

Jan.

1.4

1.1

.9

.9

.8

.7

.6

.6

.6

.6

.6

.6

.6

.5

.4

.5

.4

.4

.3

.3

.4

.5

.5

.6

.6

.6

.6

.6

.5

.4

Feb.

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.8

1.0

.8

.7

.5

.6

.5

.4

_

_

-

Mar.

0.4

.4

.4

.4

.5

.5

.5

.5

.5

.6

.6

.6

1.3

1.2

.9

.7

.7

.6

.6

.6

.5

.6

.6

.6

.6

.5

.5

.4

.4

.4

Apr.

0.4

.5

.6

.6

.6

.5

.5

.6

.6

.6

.6

.6

.7

.7

.6

.6

.5

.5

.4

.6

.6

.6

.5

.6

.5

.4

.5

.5

.4

-

May

0.4

.4

.4

.4

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.2

.1

.1

.1

.1

0

0

0

0

June July Aug. Sept.

Month

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

Calendar year 1941 ......................

March

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

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

September. .................................

Water year 1941-42 ...... .............

Secondfoot-days

4.1

18. S

996.1

0

100.0

Maximum

0.3

2.5

41

0

2.5

Minimum

0

.1

0

0

0

Mean

0.13

.60

2.73

0

.27

Runoff in 

acre-feet

8.1

9.1

37

1,970

38

12

0

0

198

Tine baaia; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tims thereafter. 

To convert war time to standard time, subtract 1 hour.
SAN GABRIEL RIVER BASIN 89

San Jose Creek near Whittler, Calif.

Location.- Water-stage recorder, lat. 34°01'25", long. 118°02'05", In Paso de Bartolo

 Grant, on Workman-Mill road bridge, about 3 miles north of Whittler. Altitude of - 

gage, about 230 feet.

Drainage area.- 85.2 square miles.

Records available,.- January 1929 to September 1942.

Average discharge.- 13 years, 8.23 second-feet.

Extremes.- Maximum discharge during year, 180 second-feet Dec. 10 (gage height, 2.31

 feet); minimum, 0.7 second-foot Aug. 12.

1929-42: Maximum discharge, 13,100 second-feet Jan. 1, 1934; no flow at times.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H.E. Hedger, chief engineer, and M.E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941.to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26 HI

28

30

Oct.

2.3

2.1

2.1

2.3

2.5

2.1

2.5

3.2

2.1

2.0

2.1

2.1

2.3

2.3

2.1

2.3

2.3

2.3

2.5

2.7

3.7

5

3.7

2.7

2.7

2.5

2.7

2.5

2.5

2.3

2.3

Nov.

2.5

2.7

2.7

2.7

2.9

2.5

2.7

2.5

2.7

3.2

3.4

3.9

3.9

3.7

3.7

3.7

3.7

3.4

3.4

3.4

3.7

3.7

3.7

3.7

3.9

3.9

4.2

4.5

4.5

Dec.

5

5

6.5

6.5

5

5

5

5

5

54

15

6

5.5

5.5

5

5

6

6.5

6.5

7

7

6.5

6.5

6.5

6.5

8

6.5

9.5

32

13

10

Jan.

8

7

6.5

7

7

8

8

8

S

7.5

.5

.5

.5

8

8.5

8.5

8

8

8

9

9.5

9

9

9

10

9.5

9

10

10

Feb.

10

9.5

9.5

9

8.5

9

8.5

8.5

8.5

9

e

8

7.5

8

8

8

7.5

7.5

7.5

7.5

16

19

8

8

8

8

7.5

7.5

_

_

-

Month

UAV

Water year 1941-42 ......................

Mar.

7

7

8.5

8

8.5

8

7

7

7

8

8.5

8.5

8

16

20

8

8

8.5

8.5

7.5

8

8

7.5

8

7.5

7.5

7.5

7

6.5

6.5

7.5

Apr.

7.5

7.5

6.5

9

7.5

8

7.5

7.5

8

9

15

9.5

8

12

10

9.5

12

9.5

8

8

10

12

10

8.5

8

8.5

9

9.5

9.5

8.5

-

Secondfoot days

78.8

103.0

11,141.5

254.5

259.5

1,981.8

May

8

8

7

7

7

7.5

6.5

6.5

7

7

8

8.5

8.5

7.5

7

8

8

7

6

5.5

4.5

5

5

4.2

3.7

4.2

4.2

3.7

3.7

3.7

3.7

Maximum

5

4.5

54

1,320

10

19

20

15

4.5

2 9

2.9

54

June

2.7

2.9

3.9

3.7

4.2

3.9

3.7

3.7

4.5

3.7

3.7

3.2

2.7

2.7

2.3

2.3

2.5

2.7

2.9

2.9

2.9

2.9

2.9

2.7

3.4

3.2

4.5

4.2

2.7

2.7

-

Minimum

2.0

2.5

5

.7

6.5

7.5

6.5

6.5

.9

.8

July

2.7

2.3

2.3

2.3

2.1

2.0

1.8

2.1

2.9

2.3

2.1

2.1

1.8

2.5

2.3

2.7

2.1

2.7

2.5

2.3

2.7

2.9

2.7

2.5

2.5

2.5

2.0

1.8

2.1

2.0

1.8

Aug.

2.3

2.3

2.0

2.5

2.3

2.5

2.0

2.1

2.1

1.6

1.2

.8

1.4

2.1

2.7

2.9

2.9

2.5

2.7

1.8

1.8

1.8

1.4

1.8

2.0

2.0

1.8

1.6

1.8

1.6

1.8

Mean

2.54

3.43

9.10

30.5

8.21

8.91

8.37

9.10

3.23

2.00

2.00

5.43

Sept.

2.3

2.3

2.1

2.0

1.6

1.6

1.2

1.8

2.3

2.0

2.0

2.0

2.3

1.6

2.1

2.7

2.1

2.0

2.1

1.2

1.0

.9

2.0

2.5

2.7

2.9

2.9

2.0

1.8

2.0

-

Runoff in 

acre feet

156

204

559

22,100

505

495

515

541

379

192

142

123

119

3,930

Time oaala; Mountain standard time prior to 2 a.m., Pen. 9, 1942; mountain war time thereafter. 

To convert war time to standard time, subtract 1 hour.

530350 O - 43 - 7
90 SAN GABRIEL RIVES BASIN

Coyote Creek near Artesla, Calif.

Location.- Water-stage recorder, lat. 33°50'45", long. 118°03'30", in Los Coyotes Grant, 

on Del Ario Street Bridge, 1-J- miles southeast of Artesia, Los Angeles County. Altitude of gage,, about 35 feet.

Drainage area.- 110 square miles.

Records available.- October 1939 to September 1942 in reports of Geological Survey.

1930-39 In files of office of Los Angeles County Flood Control District, Los Angeles, 

Calif.

Extremes.- Maximum discharge during year, 351 second-feet Dec. 10 (gage height, 7.89 

feet); no flow for several short periods.

1939-42: Maximum discharge, 2,750 second-feet Feb. 28, 1941 (gage height, 11.13 

feet); no -flow at times.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H.E. Hedger, chief engineer, and M.E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.4

.4

.4

.4

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.5

.1

0

0

0

0

0

0

1.9

2.9

1.3

1.1

1.0

1.3

1.6

1.5

1.6

Nov.

1.6

1.8

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

3 .

1.

1.

1.

1.

: .

i.

i.

i.

1.6

Dec.

1.6

1.3

.3

.1

1.7

1.6

1.1

1.0

.4

92

47

14

7

4.4

3.7

3.7

4.0

2 . 9

2.2

2.2

2.2

2.3

2.4

2.4

2.5

2.6

2.4

2.6

46

2.5

21

Jan.

11

8

4.8

3.3

2.8

2.5

2.7

2.8

3.1

3.3

2.8

2.7

2.8

2.8

2.7

2.8

2.9

3.0

3.0

2.6

2.9

3.4

3.4

3.3

3.1

3.1

3.4

3.4

3.5

3.3

2.9

Feb.

2.7

2.4

2.2

2.1

1.9

2.2

2.2

2.2

£.2

2.2

2.3

2.3

2.4

2.4

2.4

2.4

2.5

2.4

2.4

2.4

2.9

10

8.5

4.2

3.2

3.1

2.9

2.6

_

-

Mar.

2.4

2.2

2.0

2.0

1.7

1.7

1.8

1.6

1.6

1.7

1.9

2.2

2.2

2.4

14

4.8

2.3

1.7

1.6

1.6

1.6

1.6

1.4

1.6

1.2

.8

.5

.4

.3

.2

.2

Apr.

0.5

1.4

1.5

1.7

2.2

1.9

2.3

2.4

1.7

2.5

11

8

3.7

3.4

5

3.9

3.2

2.8

2.6

2.2

2.3

3.2

3.2

2.4

2.2

2.2

2.5

2.3

2.5

2.5

-

May

2.5

2.4

2.3

1.9

1.9

1.6

.8

.4

.3

.2

.2

.2

.4

.3

.2

.2

.2

.1

.1

.1

.1

0

0

0

0

.4

.4

.3

.3

.4

.6

June

0.8

1.0

1.2

1.8

1.9

1.4

.9

.5

.4

.5

.6

.7

.6

1.0

2.0

1.9

1.3

2.2

2.1

1.9

1.7

.5

.4

.8

.4

.2

.1

.1

.1

.6

-

July

0.5

.6

.5

.4

.5

.4

.5

.5

.5

.4

.4

.3

.3

.2

.1

0

0

0

.4

.5

.3

.6

.5

.4

.4

.3

.2

.3

.4

.5

.4

Aug.

0.3

.4

1.3

1.1

1.1

1.3

.9

.5

.4

.5

.4

.3

.4

.5

.6

1.1

1.4

1.4

1.0

.5

.4

.4

.2

.4

.6

.7

1.3

1.6

1.1

.5

.3

Sept.

0 2

4

4

3

2

.1

0

0

0

0

.4

.1

0

.1

.3

.2

.2

.3

.3

.3

.2

.4

.2

.1

.5

.8

1.1

1.4

1.9

1.4

-

Month

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

Water year 1941-42 ......................

Secondfoot-days

43.6

14,150.7

83.6

18.8

785.4

Maximum

2.9

1.8

1,440

10

2.5

92

Minimum

0

1.0

.1

0

1.9

.5

0

0

Mean

0.71

1.45

9.07

38.8

2.99

2.97

.61

.36

2.15

Runoff in 

acre-feet

44

86

558

28,080

215

166

125

177

37

59

22

1,560

Time basis; 

To convert wai

Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tine thereafter, 

time to standard time, subtract 1 hour. '
SAT! GAhRIEL RIVER BASII1 91

Rrea Creek at Fullerton, Calif.

Location.- Water-stage recorder, lat. 33°52'25", long. 117°55'40", in San Juan Cajon de

 Santa Ana Grant, on Ford Avenue Bridge, at Fullerton, Orange County. Altitude of 

gage, about 250 feet.

Drainage area.- 26.4 square miles.

Extremes.- 1940-41: Maximum discharge during water year 3,700 second-feet Mar. 14

 (gage height 5.45 feet). (Only maximum daily discharge published in Water-Supply

1941-42: Maximum llscharge during water year, 36 second-feet Dec. 10 (gage 

height, 0.42 feet); u * ow durinr most of year.

1930-42: Maximum disc-large, 3,700 second-feet Mar. 14, 1941 (gage height, 5.45 

feet); no flow during most of each year.

Average discharge.- 11 years (1930-38, 1939-42), 1.76 second-feet. 

Records available.- October 1930 to September 1942.

Cooperation.- Records ruralshed by Orange County Flood Control District, through A. A. 

Beard, flood, control engineer.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec.

0

0

.5

0

0

0

0

0

2.4

28

9.5

2.2

1.0

.5

.2

0

0

0

0

0

0

0

0

0

.6

1.6

2.5

3.1

20

7

5

Jan

3.1

2.2

2.2

2.2

1.6

.9

.8

.7

.6

.5

.4

.4

.3

.2

.2

.2

.2

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.6

3.1

2.0

1.5

.6

.6

,6

.6

-

-

-

Month

October. ...................................

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

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

Calendar year 1941 .................... .

January .................................. .

February ................................. .

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

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

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

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

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

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

September. ............................... .

Water year 1941-42 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

,6

.1.1

1.2

1.2

1.2

1.2

1.2

1.0

.8

.6

.4

.2

0

0

0

0

0

0

0

0

Apr.

0

0

.6

.6

.1

.2

0

0

0

1.2

1.9

.9

.9

.8

.8

.8

.7

.6

.6

.6

.6

.6

.3

.3

0

0

0

0

0

0

-

Secondfoot-days

0

0

84.1

2,666.3

16.9

10.6

9.8

13.4

0

0

0

0

0

134.8

May

Maximum

0

0

28

517

3.1

3.1

1.2

1.9

0

0

0

0

0

28

June

Minimum

0

0

0

0

July Aug.

Mean

0

0

2.71

7.30

O 1 .55

0. .38

0

0

0

0

0

0

0

c

.32

.45

0

0

0

0

0

.37

Sept.

Runoff in 

acre-feet

0

0

167

5,290

34

21

19

27

0

0

0

0

0

268

Time basis: Pacific standard time prior to 2 a.m., 

To convert war time to standard time, subtract 1 hour

Feb. 9, 1942; Pacific war time thereafter.
92 SAN GABRIEL RIVER BASIN

Fullerton Creek at Fullerton, Calif.

Location.- Water-stage recorder, lat. 33°52'20", long. 117°54'20", In San Juan Cajon de 

Santa Ana Grant, on Raymond Avenue Bridge, at Fullerton. Altitude of gage, about 170 

feet.

Drainage area.- 6.2 square miles.

Records available.- October 1939 to September 1942 In reports of Geological Survey.

1931-39 in files of office of Orange County Flood Control District, Santa Ana, Calif.

Extremes.- Maximum discharge during year, 12 second-feet Dec. 10 (gage height, 0.41 

root); no flow during most of yea^.

1939-42. Maximum discharge, 1,600 second-feet Mar. 14, 1941 (gage height, 10.05 

feet); no flow for several months each year.

Cooperation.- Records furnished by Orange County Flood Control District, through 

A. A. Beard, flood control engineer.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1.0

.8

1.4

.2

0

0

0

0

0

0

0

Nov.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

.6.1

.2

.3

Dec.

0.3

.4

1.2

.6

.5

.7

.8

.9

1.8

5

.4

.3

.2

0

0

0

0

0

0

0

O

0

o

0

1.0

0

0

2.0

2.0

I £

!*

Jan.

0.6

.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.4

0

0

0

0

0

0

0

0

0

Feb.

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ...................................

March ...

Apri 

May

1. .....................................

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

1.6

.6

0

0

0

0

O

0

0

0

.6

0

0

1.8

0

0

0

0

o

0

o

o

0

0

0

o

0

0

0

0

0

Apr.

o.s

0

1.2

1.0

0

0

0

0

0

1.4

1.2

0

0

0

0

0

1.8

.4

0

0

0

0

0

0

0

0

0

0

0

.4

-

Secondfoot-days

3.4

1.4

20.3

1,084.0

1.5

O

4.6

7.6 

.8

0

O

0

0

39.6

Hay

0.6

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

1.4

.6

5

265

.6

0

l.S

1.8 

.6

0

0

0

0

5

June

Minimum

0

0

0

0

0

0

0

0 

0

0

0

0

0

0

July Aug.

Mean

0.11

.05

.65

2.97

.05

0

.15

.25 

.03

0

! °

0

0

.11

Sept.

Runoff in 

acre-feet

6.7

2.8

40

2,150

3.0

0

9.1

15 

1.6

0

0

0

0

78

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
LOS ANGELES RIVER BASIN 93

Los Angeles River below Sepulveda Dam, Calif.

X

Location.- Water-stage recorder, lat. 34°09'40", long. 118°27'50", In Ex Mission San 

Fernando Grant, an eighth of a mile downstream rrom Sepulveda Boulevard, a third of a 

mile downstream from Sepulveda flood-control dam, and 2 miles southwest of Van Nuys, 

Los Angeles County. Altitude of gage, about 670 feet.

Drainage area.- 157 square miles.

Records available.- October 1940 to September 1942 In reports of Geological Survey.

December 1928 to September 1942 In reports of Los Angeles County Flood Control District.

Extremes.- Maximum discharge during year, 1,040 second-feet Dec. 28 (gage height, 6.23 

feet;; minimum, 4.4 second-feet July 27.

1940-42: Maximum discharge, 6,610 second-feet Feb. 20, 1941 (gage height, 20.7 

feet); minimum daily, 2.9 second-feet Oct. 17, Nov. 7, 1940.

Remarks.- Storage and several diversions above station, 

control dam became effective In December 1941.

Regulation at Sepulveda floodCooperation.- Records furnished by Los Angeles county Flood Control District, through 

H.E. Hedger, chief engineer, and M.E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

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

23

29

30

31

Oct.

8

7.5

7.5

7.5

S

7

6

7

6.6

6.6

6.5

8.5

6.5

7

6.5

7

7

7

7

7

8.5

11

17

17

8.5

8

8.5

8

7.5

7

7

Nov.

7.5

7

7

7

7

7

7

7.5

7

6.5

6.5

7

7

7

7

7

7

6.5

6.5

6.5

6

6.5

6

5.5

5.5

6

5.5

5.5

6

6

Dec.

6

6

10

6.5

6

6

5.5

5.5

6.5

31

17

S

7

7

7

6.5

6.5

7

6.5

10

6.5

6

6.5

7

9

9.5

S

161

7S

13

9.5

Jan.

S.5

8

8

8

S.5

S.5

S.5

S.5

S

7.5

7.5

7

7

7

6.5

6.5

6.5

5.5

5.5

6

6

S.5

8

S

8.5

8.5

8

S

S.5

8

8

Feb.

8

S

9

10

11

11

11

10

10

10

12

12

11

11

11

11

11

11

11

11

21

18

11

10

10

10

10

9.5

_

_

-

Mar.

10

10

10

10

10

10

9

S.5

S.5

9.5

11

11

10

37

21

9.5

9.5

9.5

9.5

9

9.5

9.5

9.5

10

10

9.5

10

10

9.5

9.5

9.5

Apr.

9.5

9

9.5

12

10

12

10

10

11

14

16

11

10

18

13

10

12

9.5

9

9.5

11

11

11

10

10

10

9.5

10

9.5

10

-

May

10

9

S.5

S.5

8.5

9

10

9.5

9

9

9.5

9

9.5

9.5

6.5

6.5

6.5

6

5.5

5.5

19

16

5.5

5.5

6

5.5

6

6.5

7

7

6.5

June

6.5

7

7.5

7.5

7.5

7.5

7

7

8

9

9.5

9.5

10

10

10

11

11

11

11

11

10

9.5

9.5

8.5

9

9

10

9.5

9.5

9.5

-

July

9.5

10

10

10

9.5

9.5

9.5

9

9

9

9.5

10

11

11

11

11

11

11

10

10

10

9.6

9.5

7.5

5

5

5

6

6

5.5

5.5

Aug.

5.5

6

7

7

S

7.5

7.5

8

8.5

13

6

S.5

9

9

S.5

8.5

S

S

6.5

6.5

6.5

6.5

6.5

6.5

7

9.5

7.5

6.5

6.6

e.e

9.E

Sept.

14

8.5

6.5

6.5

6.5

6

5.5

6

6.5

7

8

10

10

10

9.5

9.5

9.5

9

S.5

S.5

S

7.5

7.5

8

8

6.5

7

7

7.5

9

"

Month

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

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

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

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

Water year 1941-42 ......................

Secondfoot-days

197.0

485.5

309.5

?,424.5

Maximum

17

7.5

161

21

161

Minimum

5.5

5.5

5

Mean

6.57

15.7

9.38

Runoff in 

acre-feet

391

963

507

471

6,790

Time basis; Mountain standard time prior to 2 a.m., Feb. 9, 1942; mountain war time thereafter. 

To convert war tine to standard tlrr.e, subtract 1 hour.
94 LOS ANGELES RIVER BASIN

Los Angeles River at Los Angeles, Calif.

Location.- Water-stage recorder, lat. 34°04'50", long. 118°13'35", near Figueroa Street, 

Los Angeles, 0.1 mile upstream from Arroyo Seco.

Drainage area.- 510 square miles.

Records available.- October 1929 to September 1942.

Average discharge.,- 13 years, 57.2 second-feet.

Extremes.- Maximum discharge during year, 5,260 second-feet Dec. 10 (gage height, 4.26 

feet); minimum, 17.5 second-feet Aug. 7.

1929-42: Maximum discharge, 67,000 second-feet War. 2, 1938; no flow for several 

periods In earlier years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

41

47

54

64

62

60

58

50

50

53

57

106

57

55

53

56

54

51

56

80

103

112

115

84

64

56

108

89

76

66

64

Nov.

64

70

76

80

82

80

78

76

82

86

88

83

84

74

51

43

60

64

64

64

60

56

51

56

60

60

56

48

43

48

-

Dec.

51

51

196

105

74

64

61

70

105

1,170

215

103

95

94

90

89

80

76

76

74

79

80

127

96

144

176

128

613

730

225

128

Jan.

129

112

116

102

98

87

102

112

136

112

104

94

102

104

94

94

94

96

98

96

89

146

102

89

85

77

74

72

66

6972-

Feb.

72

77

82

87

87

87

87

85

82

74

69

80

77

74

80

82

77

74

72

69

309

198

68

109

89

89

115

123

-

-

-

Mar.

76

84

89

68

68

67

66

65

64

60

140

76

76

301

126

76

76

84

84

82

80

79

77

75

74

72

71

70

69

68

89

Apr.

89

76

135

176

86

101

80

77

74

129

84

80

76

169

84

39

274

94

84

88

141

99

94

89

84

80

84

80

80

76

-

May

84

76

68

68

60

32

34

34

35

35

38

40

40

40

40

39

39

38

49

84

115

80

76

72

68

68

68

58

54

60

56

June

72

72

72

72

72

76

72

72

72

52

48

50

51

54

58

58

58

68

64

56

56

72

72

64

29

28

39

52

51

49

-

July

48

49

50

50

48

48

51

51

60

45

37

31

32

34

35

35

35

34

32

32

32

31

32

28

30

28

26

24

24

28

26

Aug.

25

24

25

26

24

24

22

22

31

96

42

28

28

28

27

25

25

27

28

27

26

28

25

24

30

32

30

28

31

29

29

Sept.

35

33

32

32

35

32

35

38

34

29

30

38

40

41

38

35

38

35

34

32

32

34

36

38

40

41

42

43

42

40

-

Month

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

Mnv

Water year 1941-42 ......................

Secondfoot days

2,101

1,987

5,465

3,023

2,674

2,652

3,052

1,748

1,781

1,146

916

1,084

27,629

Maximum

115

88

1,170

146

309

301

274

115

76

60

96

43

1,170

Minimum

41

43

51

68

60

74

32

28

24

22

29

22

Mean

67.8

66.2

176

97.5

85.5

56.4

59.4

37.0

29.5

75.7

Runoff in 

acre feet

4,170

3,940

10,840

5,260

3,470

3,530

1,820

54,800

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
LCS ANGELES RIVER BASIN 95

Los Angeles River near Downey, Calif.

Location.- Water-stage recorder, lat. 33°57'05", long. 118°10'25", in San Antonio Grant, 

on Firestone Boulevard Bridge, 1 mile upstream from Rio Hondo and 24 miles west of 

Downey, Los Angeles County. Altitude of gage, about 100 feet.

Drainage area.- 614 square miles.

Records available.- March 1928 to September 1942.

Average discharge.- 14 years, 85.2 second-feet.

Extremes.- Maximum discharge during year, 8,210 second-feet Dec. 10 (gage height, 6.42 

feet); minimum, 20 second-feet Aug. 23 (gage height, 3.53 feet).

1923-42: Maximum discharge, 79,700 second-feet Mar. 2, 1938; no flow during parts 

of most years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

78'

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

45

48

65

79

79

83

93

83

75

70

69

195

72

67

61

56

48

52

72

95

179

210

224

76

81

76

158

86

86

81

SI

Nov.

91

81

72

86

72

76

81

76

81

86

101

96

86

86

91

76

76

81

72

72

81

72

60

56

52

60

60

64

60

56

-

Dec.

56

76

381

119

68

64

76

76

131

2,030

286

119

96

96

107

113

119

96

96

91

81

76

133

107

178

240

113

R78

1,460

500

152

Jan.

234

159

125

113

119

113

113

113

101

96

95

86

113

107

101

131

113

107

96

81

76

223

138

125

107

86

91

96

86

81

76

Feb.

76

81

86

91

101

101

107

91

101

91

86

101

86

76

72

86

91

101

91

72

502

397

94

95

96

107

101

101

-

-

-

Mar.

91

86

81

68

88

74

60

64

68

68

208

91

113

653

234

96

91

101

113

113

91

72

81

86

91

81

78

75

71

68

72

Apr.

72

72

81

279

96

107

96

96

86

285

277

86

91

351

152

96

311

86

76

81

211

138

101

86

81

86

86

91

81

96

-

May

86

81

72

72

72

52

48

48

45

38

45

45

48

52

48

41

41

41

41

60

101

86

52

64

76

76

76

76

72

81

86

June

86

86

81

81

86

91

72

76

86

86

60

60

60

52

56

68

81

72

68

60

64

68

101

68

38

29

32

48

48

48

-

July

56

60

64

72

56

60

64

56

68

72

60

41

41

38

48

45

45

45

35

41

48

48

38

38

35

35

35

38

35

52

48

Aug.

29

32

35

35

35

35

29

29

38

240

64

29

29

35

38

35

41

41

38

38

35

52

27

32

38

45

41

41

32

38

48

Sept.

56

45

45

45

48

45

45

45

48

48

41

41

41

41

72

41

48

45

48

45

35

38

41

41

45

56

68

64

64

56

-

Month

Hay. .......................................

Water year 1941-42 ... ..................

Secondfoot-days

2,260

8,214

127.674

3,501

3,281

3,427

3,934

1,922

2,012

1,517

1,354

1,441

35,708

Maximum

101

2,030

7,580

234

502

653

351

101

101

72

240

72

2,030

Minimum

45

52

56

36

76

72

60

72

38

29

35

27

35

27

Mean

91.8

75.3

265

350

113

117

111

131

62.0

67.1

48.9

43.7

48.0

97.8

Runoff in 

acre-feet

5,640

4,480

16,290

253,200

6,940

6,510

6,800

7,800

3,810

3,990

3,010

2,690

2,860

70,820

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
96 LOS ANGELES RIVER BASIN 

Los Angeles River at Long Beach, Calif.

Location.- Water-stage recorder, lat. 33°47'25", long. 118°12 1 20'1 , on State Street Bridge 

at Long Beach, Los Angeles County.

Records available.- December 1928 to September 1942. 

Average discharge.- 13 years (1929-42), 142 second-feet.

Extremes.- Maximum discharge during year, 10,800 second-feet Dec. 10 (gage height, 11.24 

feet); minimum daily, 31 second-feet several days.

1928-42: Maximum discharge, 99,000 second-feet Mar. 2, 1938; no flow at times in 

1929, 1930, and 1934.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

63

63

60

73

79

79

62

79

79

79

79

265

92

85

79

76

73

69

73

82

144

491

366

150

97

92

115

231

109

97

115

Nov.

85

68

92

115

103

97

103

97

85

92

109

121

115

115

97

85

76

82

62

82

76

76

66

66

76

76

79

62

85

82

-

Dec.

79

85

363

305

174

156

150

144

219

3,180

518

192

180

168

156

156

144

136

138

127

109

76

132

224

109

473

174

423

2,070

560

246

Jan.

304

261

180

174

150

144

144

150

144

144

138

138

136

132

132

127

127

121

115

121

109

279

138

115

103

115

138

150

136

136

127

Feb.

121

121

132

115

103

103

92

92

97

97

103

109

115

127

132

127

132

132

132

132

683

921

291

237

174

121

115

103

-

-

-

Mar.

97

97

115

115

103

103

109

97

97

97

232

174

132

1,080

700

210

168

168

162

150

115

103

92

103

97

92

85

82

82

76

76

Apr.

79

79

79

409

97

244

132

92

109

223

517

97

73

425

237

121

418

156

127

103

163

315

103

92

156

97

ee

144

144

127

-

Hay

121

88

79

73

69

69

50

55

52

52

50

55

55

55

52

55

52

52

57

79

115

144

82

82

97

88

62

76

76

85

85

June

79

82

85

' 79

82

82

82

79

85

85

69

69

76

73

73

76

66

76

63

60

63

63

88

76

60

50

52

63

73

69

-

July

66

60

63

60

57

52

55

55

55

66

60

50

40

47

50

50

50

47

50

37

40

42

40

40

45

34

34

42

31

47

57

Aug.

42

40

34

42

45

42

34

31

34

212

121

55

45

50

55

57

55

57

45

45

37

37

40

31

34

34

37

,51 .'54 -o

40

Sept.

45

47

47

47

47

47

47

50

57

57

52

60

66

60

69

69

66

66

63

60

55

55

52

52

55

63

63

60

66

76

-

Month

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

March, .....................................

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

Water year 1941-42 ......................

Secondroot-days

3,716

2,685

11,388

47,074

Maximum

491

121

3,180

88

3,180

Minimum

60

66

76

31

45

31

Mean

120

89.5

367

49.1

57.3

129

Runoff in 

acre-feet

7,370

5,330

22,590

4,320

3,020

3,410

93,390

Time baala: Pacific atandard time prior to 2 a.m., Feb. 9, 1942; Pacific 

To convert war time to atandard time, aubtract 1 hour.

ar time thereafter.
LOS ANGELES RIVER BASIN 97

Pacoima Creek near San Fernando, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°20'02", long. 

118"23"55", in SEiNEi sec. 24, T. 3 N., R. 15 W., 600 feet upstream from mouth of 

canyon and 4 miles northeast of San Fernando.

Drainage area.- 28.2 square miles.

Records available.- March 1916 to September 1942.

Average discharge.- 25 years (1917-42), 8.27 setfond-feet.

Extremes.- Maximum discharge during year, 97 second-feet July 15 (gage height, 2.00 

feet); no flow during several months.

1916-42: Maximum discharge, 2,440 second-feet Mar. 3, 1938; no flow for several 

months in most years.

Remarks.- Flow regulated by flood-control dam above station.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

0

0

0

0

0

2.9

6

5

4.8

4.2

4.3

4.3

4.4

4.4

4.3

4.3

4.3

4.3

4.3

4.2

4.3

4.4

4.4

4.4

4.4

4.4

4.4

4.3

4.3

4.3

Nov.

4.2

4.2

4.2

4.2

4.1

4.1

3.8

3.3

3.3

3.3

3.2

3.2

3.2

3.1

3.1

3.0

3.0

3.0

2.9

2.8

2.2

.3

.1

0

0

0

0

0

0

0

-

Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1.1

.1.1

Jan.

0

0

0

0o3.4

7.5

7

7

7

6.5

5.5

3.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

2.9

6.5

6.5

6.5

6.5

Feb.

6.5

6.5

6.5

6.5

6.5

6.5

6

6

6

2.9

0

0

0

0

0

0

0

0

0

0

0

.1

.1

0

0

0

0

0

-

-

-

Mar.

0

0

0

0

0

0

.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

Apr.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.3

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.7

.1

.1

1.2

-

May

4.7

2.3

.1

.6

1.5

1.5

1.5

.8

.1

.1

.1

.1

.1

.1

.1

.1

.1

4.5

6

4.2

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.5

3.3

3.2

3.2

June

4.1

4.4

4.2

4.0

4.0

4.0

3.9

3.S

4.5

5

5

5

5

4.9

4.S

4.7

4.7

4.6

4.5

4.3

4.2

4.1

4.1

4.0

25

4.6

4.6

4.6

4.5

4.3

-

July

4.6

5.5

5

5

4.9

4.S

4.7

4.7

4.6

4.6

4.6

4.5

4.3

4.3

19

4.3

4.3

4.3

4.4

5

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

4.9

4.5

Aug.

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.6

4.6

4.7

6

6.5

5.5

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

Sept.

6

6

6

6

6

6

6.5

5.5

5.5

5.5

4.5

.5

.1

.1

.8

3.1

4.0

3.9

3.8

3.7

3.7

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.5

-

Month

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

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

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

September. .................................

Water year 1941-42 ......................

Secondfoot-days

109.6

71.8

.4

13,089.2

77.3

60.1

2.3

4.9

67.0

153.4

166.8

168.4

US. 5

1,000.5

Maximum

6

4.2

.1

401

7.5

6.5

.1

1.2

6

25

19

6.5

6

25

Minimum

0

0

0

0

0

0

.1

.1

3.8

4.3

4.5

.1

0

Mean

3.54

2.39

.01

35.9

2.49

2.15

.07

.16

2.16

5.11

5.38

5.43

3.95

2.74

Runoff in 

acre-feet

217

142

.8

25,960

153

119

4.6

9.7

133

304

331

334

235

1,980

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
98 LOS ANGELES RIVER BASIN

Tujunga Creek near Colby Ranch, Calif.

Location.- Water-stage recorder, lat. 34°18'10", long. 118°09'35". Just downstream from 

Lucas "Creek, 400 reet upstream from crossing or Edison Road, 3i miles west or Colby 

Ranch, and 4 miles upstream rrom Tujunga riood-control dam 1, Los Angeles County.

Drainage area.- 66.9 square miles.

Records available.- October 1930 to September 1942.

Average discharge.- 12 years, 18.8 second-reet.

Extremes.- Maximum discharge during year, 112 second-feet Dec. 10 (gage height, 6.88 

feet); nlnlmuri, 0.5 second-root Aug. 5.

1930-42: Maximum discharge not determined, probably occurred Mar. 2, 1938; no 

flow parts of most years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

K. E. Hedger, chler engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

6

6.5

6.5

6.5

6.5

6.5

7

6.5

6.5

6.5

7

7

6.5

6.5

6.5

6.5

6.5

7

9

10

12

12

13

12

11

13

12

11

11

11

Nov.

10

10

10

10

9.5

9

9

9

9

9

10

9.5

9

9

9

9

9

9

9

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

9

10

-

Dec.

9.5

9.5

14

11

10

10

9.5

9.5

46

31

18

15

14

14

14

13

13

13

13

13

13

14

14

14

14

14

23

57

42

33

Month

Jan.

28

24

21

20

19

18

18

18

17

16

16

15

14

14

14

14

14

14

14

14

15

14

13

13

12

12

12

11

11

10

Feb.

10

11

11

11

11

11

11

11

11

11

11

11

11

10

10

10

10

10

10

16

28

17

15

14

14

14

14

-

-

-

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

Water year 1941-42 ......................

liar.

13

12

12

12

13

13

12

12

12

12

12

11

14

16

16

15

15

14

12

12

11

11

11

10

9.5

9.5

9

9

9

9

Apr.

9

9

9.5

12

12

11

10

10

12

15

14

12

15

13

11

13

12

9.5

9

10

11

10

9

9

9

8.5

9.5

9

8.5

-

Secondfoot-days

262.0

274.0

551.0

326.5

188.5

90.7

33.1

38.3

27.1

2,992.2

May

S.5

S

7.5

7

6.5

6.5

6

6

6.5

7

7

7

7

6.5

6.5

6

5.5

5

4.4

4.2

4.4

5

5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

Maximum

13

10

67

1,120

28

28

15

8.5

5

1.6

5.5

1.0

57

June

5

4.6

4.4

3.8

3,S

3.6

3.6

3.3

3.1

3.1

3.1

2.9

2.9

3.1

3.1

3.3

3.1

2.7

2.7

2.3

2.2

2.2

2.0

2.2

2.3

2.3

2.2

1.9

1.7

-

Minimum

6

8.5

9.5

4.5

10

10

9

8 5

4 2

1 7

8

6

9

.6

July

1.6

1.6

1.6

1.4

1.3

1.3

1.1

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.9

.9

.8

.8

.8

.8

.8

Aug.

0.7

.7

.7

.6

.6

.6

.6

1.4

5.5

2.0

1.6

1.6

1.5

1.5

1.4

1.3

1.3

1.2

1.2

1.2

1.1

1.1

1.1

1.1

1.0

1.0 1.0

1.0

1.0

1.0

Mean

8.45

9.13

17.8

68.5

15.7

10.9

6.08

3.02

1.07

1.24

.90

8.20

Sept.

1.0

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

.9

-

Runoff in 

acre-feet

520

543

1,090

49,570

964

684

734

648

374

180

66

76

54

5,930

Tims basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war tins to standard time, subtract 1 hour.
LOS ANGELES RIVER BASIN 9y 

Tujunga Creek near Sunland, Calif.

Location.- Water-stage recorder, lat. 34°17'55", long. 118°i6'lO", near center of sec. 

32, T. 3 N., R. 13 W. (unsurveyed), a quarter of a mile downstreari Iron a partly 

constructed and abandoned dan, 2 miles upstream from mouth of canyon, and 4 rilles 

northeast of Sunland.

Drainage area.- 106 square miles.

Records available.- October 1916 to September 1042.

Average discharge.- 25 years (1917-42), 29.2 second-feet.

Extremes.- Maximum discharge during year, 165 second-feet Dec. 28 (gage height, 0.53 

feet); minimum, 2.8 second-feet Aug. 7.

1916-42: Maximum discharge, 50,000 second-feet Mar. 2, 1938; minimum, 0.1 secondfoot at times in summers of 1919, 1924, 1926-31.

Remarks.- Flow regulated by flood-control dam 7 miles above station. Two or three s-'all 

diversions above station for Irrigation.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

?

3

4

5

6

7

B

9

10

11

1?

13

14

15

16

17

1R

19

20

21

22

23

24

25

?fi

29

30

31

Oct.

18

18

18

18

19

19

20

21

21

21

21

22

22

21

21

20

19

18

21

24

26

24

24

25

24

24

24

22

22

22

21

Nov.

21

20

26

33

33

33

33

34

35

37

40

40

41

40

33

24

22

24

24

22

20

18

13

10

7

5

5

5

5

5

Dec.

5

5

8

7.5

7.5

7.5

7

6.5

6

48

17

14

12

9

8.5

8

14

22

24

24

18

15

19

21

21

20

19

42

50

45

62

Jan.

60

59

57

56

55

39

24

24

24

24

24

23

23

23

23

23

24

24

24

24

24

24

23

23

24

24

24

25

25

26

25

Feb.

25

24

23

23

20

17

14

13

12

12

12

12

12

12

12

12

12

12

12

12

18

34

36

30

25

24

26

25

_

_

-

Month

Water year 1941-42 ......................

Mar.

23

22

21

19

14

7.5

5.5

4.8

4.4

5.5

7

4.4

4.4

11

12

8.5

7.5

7

6

6

5.5

5.5

5.5

5.5

5.5

6.5

6.5

6

5.5

5.5

5.5

Apr.

8

24

24

22

12

10

7

9

6

8.5

8

8

7.5

11

8.5

7

8

8

7.5

6

5.5

7

6.5

6

6

6

5.5

9

13

8.5

-

Secondfoot-day s

40,714.4

521

5,391.4

May

10

9.5

9.5

9.5

9.5

12

15

17

18

16

14

14

16

15

14

9.5

10

13

13 *

12 f

12

11

8

7

6

6

.5

.5

Maximum

26

41

62

1,260

36

24

18

7.5

15

22

62

June

6.5

6

6.5

5.5

4.8

5.5

5.5

6

6

6

6.5

6.5

6.5

6.5

6.5

6.5

6.5

7

7.5

7

6.5

6.5

6.5

6

6.5

6.5

5.5

4.8

6.5

6

-

Minimum

18

4.2

12

5.5

6

4.8

9

4.4

July

5.5

4.8

6.5

6

6

6

4.4

4.8

4.8

4.8

6

5.5

4.8

4.8

4.8

4.8

4.8

5.5

5.5

5.5

6

6

6.5

6

6

.8

. .8

- .4

.8

.8

.8

Aug.

5.5

4.8

5.5

5.5

6

4.4

4.4

4.4

8

14

5.5

4.8

9

12

13

13

13

15

15

14

14

13

10

10

11

12

12

11

10

10

11

Mean

21.3

23.6

19.1

112

29.8

18.6

8.50

9.43

11.0

6.22

5.31

9.70

14.8

14.8

Sept.

11

11

11

10

10

10

10

10

1111

11

11

9

10

11

10

16

22

22

20

21

21

20

21

21

20

19

19

18

18

~

Runoff in 

acre-feet

1,310

1,400

1,180

80,760

1,830

1,030

523

561

679

370

326

597

883

10,690

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
100 LOS ANGELES RIVER BASIN

Tujunga Creek below Hansen Dam, Calif.

Location.- Water-stage recorder, lat. 34°15'10", long. 118°23'25", In Ex Mission San 

Fernando Grant, on Glen Oaks Boulevard Bridge, half a mile below Hansen Dam, and 

about 3 miles southeast of San Fernando, Los Angeles County. Altitude of gage, 

about 950 feet.

Drainage area.- 148 square miles.

Records available.- October 1940 to September 1942 in reports of Geological Survey.

April 1932 to September 1940 (fragmentary) and October 1940 to September 1942 in

Annual Reports of Los Angeles County Flood Control District.

Extremes.- Maximum discharge during year, 59 second-feet Dec. 30; no flow most of year. 

l9"4"0-42: Maximum discharge, 1,200 second-feet Mar. 6, 1941; no flow part of each 

year.

Remarks.- Storage and diversions above station. Flow regulated by Hansen flood-control 

dam.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

9.5

8

7.5

8

8

8

8

8

7

7

5

5

6

5.5

6

6

6.5

7

7.5

8.5

10

11

11

11

11

11

12

12

12

11

Nov.

11

11

18

20

0

0

17

36

28

25

26

28

28

28

24

18

13

13

18

16

12

10

7.5

5

4.2

2.7

1.3

.8

.4

.2

-

Dec.

0.1

0

.3

.2

.1

0

0

0

0

4.3

20

32

19

8.5

4.8

2.7

1.6

2.6

6

8.5

11

9.5

10

12

8

9.5

10

14

36

55

58

Jem.

59

58

58

57

57

50

39

29

23

20

18

16

16

15

14

14

14

14

14

14

13

13

13

13

13

13

13

14

13

13

13

Feb.

13

13

13

3.5

11

16

11

5

3.5

3.5

3.5

3.7

3.7

3.5

3.7

3.7

4.4

5

5.5

5.5

6.5

16

20

20

17

7

16

16

_

-

-

Mar.

14

14

14

14

14

7.5

3.7

.5

0

0

0

0

0

.5

3.2

3.2

1.6

.5

.1

0

0

0

0

0

0

0

0

0

0

0

0

Apr. May June July Aug. Sept.

Month

Calendar year 1941 ......................

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

Water year 1941-42 ......................

Secondfoot-days

42,396.3

0

0

2,115.8

Maximum

12

36

1,050

20

0

0

0

59

Minimum

5

0

0

0

3.5

0

0

0

0

0

0

0

Mean

8.48

14.1

11.1

116

24.0

9.04

2.93

0

0

0

0

0

5.80

Runoff in 

acre- feet

522

837

682

84,080

1,470

502

180

0

0

0

0

0

0

4,190

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
LOS ANGELES RIVER BASIN 101

Little Tujunga Creek near San Fernando, Calif.

Location.- Water-stage recorder, lat. 34°16'30", long. 118°22'20", in Tujunga Grant, on 

Foothill Boulevard Bridge, 4 miles east of San Fernando, Los Angeles County.

Drainage area.- 21.0 square miles.

Records available.- December 1928 to September 1942.

Average discharge.- 14 years, 3.01 second-feet.

Extremes.- Maximum discharge during year, 198 second-feet Dec. 28 (gage height, 3.98 

feet); no flow during several periods.

1928-42: Maximum discharge, 8,500 second-feet Mar. 2, 1938; no flow for several 

months each year.

Cooperation..- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

O.D 

.1 

.1 

.1

.1 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0

.1

0

.1 

.1 

.1 

.1 

.1

Nov.

0.1 

.1 

.1 

.1

.1 

.1 

.1 

.1 

.1

.1

.1 

.1 

.1

.1

.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

0

0

0 

0 

0 

0 

0

Dec.

0 

0

.1

.2

.1 

.1 

.1 

.1

11

1.1 

.2

0 

0 

0

0 

0 

0 

0 

0

.1

0 

0 

0 

0

0 

0 

30 

16 

2.5 

1.6

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Jan.

0.6 

.5 

.3 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

.1

.4

1.2 

2.1

2.0 

1.1 

.5 

.4 

.4 

.6

Feb.

0.4 

.3 

.4 

.4

.4

.5 

.3 

.3 

.4

.3 

.3 

.3 

.3 

.3

.3 

.3 

.3 

.3 

.3

.9

1.8 

.7 

.5 

.1

.1

.1 

0

mber. ..................................

lendar year 194: 

ary

ter year 1941-42 ...............

Mar.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.8 

.5 

.7 

2.5 

.1

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0

.1

0

0 

0 

0 

0 

.2

0 

0 

0 

2.1 

.2

.1 

.3 

.2 

.3 

.4

.6 

.5 

.2 

.2 

.2

.2 

.2 

.2 

.2 

.2

Secondfoot-days

1.2 

2.3 

63. 3

5,335.8

10.3 

11.0 

4.6 

6.6 

.9 

0 

0 

0 

0

100.2

May

0.1 

.1 

.1 

.1 

.1

.1 

.1 

.1 

0 

0

.1

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0 

0

0 

0 

0 

0 

0 

0

Maximum

0.1 

.1 

30

534

2.1 

1.8 

2.5 

2.1 

.1 

0 

0 

0 

0

30

June

Minimum

0 

0 

0

0

0 

0 

0 

0 

0 

0 

0 

0 

0

0

July Aug.

lie an

0.04 

.08 

2.04

14.6

.33 

.39 

.15 

.22

.03 

0

0 

0 

0

.27

Sept.

Runoff in 

acre-feet

2.4 

4.6 

126

10,590

20 

22 

9.1 

13 

1.8 

0 

0 

0 

0

199

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
102 LOS ANGELES RIVER BASIN

Halnes Creek near Tujunga, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°15'50", long. 

118"16'15", In NWfNWi sec. 17, T. 2 N., R. 13 W., half a mile upstream from mouth of 

canyon and 1$ miles northeast of Tujunga. Altitude of gage, about 2,430 feet (from 

topographic map).

Drainage area.- 1.2 square miles.

Records available.- February 1917 to September 1934, October 1935 to September 1942.

Average discharge.- 24 years, 0.163 second-foot.

Extremes.- Maximum discharge during year, 9 second-feet Dec. 28 (gage height, 2.04 

feet); practically no flow at tines in July, August, and September.

1917-34. 1935-42: Maximum gage height, 11.0 feet Jan. 1, 1934 (discharge not 

determined); no flow for periods in most years.

Remarks.- Records good.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.09

.11

.13

.13

.13

.13

.13

.11

.:i

.11

.09

.11

. 11

.09

.09

.09

.09

.09

.13

.13

.13

.13

.13

.15

.13

.11

.13

.11

.11

.11

.11

Nov.

0.09

.09

.09

.09

.09

.09

.09

.09

.09

.09

.09

.08

.09

.08

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.09

.09

-

Dec.

0.09

.09

.12

.13

.13

.13

.13

.13

.15

.83

f.15

.13

.13

.13

.13

.13

.13

.11

.11

.11

.11

.11

.13

.13

.13

.13

.11

.81

.21

.17

.17

Jan.

0.15

.15

.15

.15

.15

.13

.13

.11

.09

.09

.09

.09

.09

.09

.09

.09

.09

.09

.08

.08

.08

.09

.11

.09

.08

.06

.05

.05

.05

 .05

.05

Feb.

0.05

.05

.05

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.06

.08

.05

.03

.03

.03

.03

.03

.03

_

_

-

Mar.

0.03

.03

.03

.03

.03

.03

.04

.04

.04

.04

.04

.04

.03

.05

.04

.04

.04

.05

.04

.04

.04

.04

.04

.04

.04

.04

.04

.03

.04

.04

.04

Apr.

0.03

.03

.04

.05

.05

.05

.05

.05

.05

.06

.06

.06

.06

.08

.06

.05

.06

.04

.04

.04

.05

.05

.05

.04

.04

.04

.04

.04

.03

.03

-

May

0.03

.03

.03

.03

.03

.04

.04

.04

.05

.05

.04

.04

.04

.04

.04

.03

.03

.03

.02

.01

.01

.01

.02

.02

.02

.01

.02

.01

.02

.02

.02

June

0.02

.02

.02

.02

.01

.02

.02

.02

.02

.02

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

.01-

July

0.01

.01

.01

.01

.01

.01

.01

.01

.01

.01

 e.005

Aug.

^eO.005

.02

 e.003

Sept.

 eO.003

-

Month

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

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

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

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

Water year 1941-42 ......................

Secondfoot-days

3.55

2.26

5.40

306.15

2.94

1.48

1.18

.87

.39

.205

.126

19.911

Maximum

0.15

.09

.83

18

.15

.08

.05

.08

.05

.02

_

.83

Minimum

0.09

.06

.09

.05

.03

.03

.03

.01

.01

_

_

..

-

Mean

0.115

.075

.174

.839

.095

.053

.038

.047

.028

.013

.066

.004

.003

.055

Runoff in 

acre-feet

7.0

4.5

11

606

5.8

2.9

2.3

2.8

1.7

.8

.4

.2

.2

40

___________i.- Dec. 10 (2:45 p.m.) 5 sec.-ft.; Dec. 28 (8:45 p.m.) 9 sec.-ft. 

e Dally discharge less than 0.01 sec.-ft.

f Discharge comnuted on basis of partly est'mater) gage-height.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tin 

To convert v»ar time to standard time, subtract 1 hour.
LOS ANGELES RIVER BASIN 103

Arroyo Seco near Pasadena, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°13'20", long. 

118"10'40", near north line of sec. 31, T. 2 N., R. 12 W., l£ miles upstream from 

Mlllard Canyon and 54 miles northwest of Pasadena. Altitude of gage, about 1,400 

feet.

Drainage area.- 16.4 square miles.

Records available.- December 1910 to September 1942.

Average discharge.- 28 years (1913-15, 1916-42), 10.1 second-feet.

Extremes.- Maximum discharge during year, 146 second-feet Dec. 10 (gage height, 6.57 

feet); minimum daily, 0.4 second-foot Sept. 30.

1910-42: Maximum discharge, 8,620 second-feet Mar. 2, 1938, by slope-area method; 

practically no flow for several months in most years.

Remarks.- Records good. No diversions above station.

Cooperation.- Twenty-eight discharge measurements furnished by Los Angeles County Flood 

Control District, through K. E. Hedger, chief engineer, and 11. E. Salsbury, acting 

chief engineer during the war emergency.

Discharge, In second-feet, water year October 1941 to September 1942

Day

1

2 

3

4

5

6

7

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.

3.2

3.0 

3.0

3.2

3.2

3.3

3.2

3.0

2.9

2.8

2.6

3.2

3.2

2.9

2.6

2.6

2.6

2.6

2.8

3.9

4.1

4.6

4.6

7

5.5

4.9

5

4.9

4.4

4.1

4.0

Nov.

3.9

3.6

3.4

3.3

3.3

3.2

3.3

3.3

3.4

3.6

3.7

3.7

3.9

3.7

3.7

3.7

3.7

3.6

3.?

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.2

3.2

3.2

-

Dec.

3.2

2.9

4.0

3.6

3.2

3.0

2.9

3.0

3.0

39

16

7

5

4.8

4.8

4.8

4.6

4.6

4.6

4.8

4.9

5

6

6

6

7

6.5

11

32

21

10

Jan.

8

7

7

6.5

6

6

5.5

5.5

5

4.9

4.8

4.6

4.6

4.4

4.4

4.3

4.3

4.3

4.3

4.3

4.6

4.3

4.3

4.4

4.4

4.4

4.3

4.3

4.1

4.1

Feb.

4.0

5.9

3.9

3.7

3.7

3.9

3.7

3.7

3.4

3.6

3.6

3.6

3.6

3.6

3.6

3.7

3.7

3.7

3.7

6

20

6

4.5

4.1

4.0

4.1

4.1

-

_

-

Har.

4.1

4.1

4.1

4.0

3.8

3.6

3.6

3.6

3.6

5

4.3

4.1

8

8.5

5.5

5

4.9

4.7

4.5

4.1

4.1

4.0

4.0

3.8

3.6

3.4

3.3

3.1

3.1

3.0

Apr.

3.0 

3.1

3.4

8

5

5

4.7

4.5

4.5

6

6

5.5

5

10

7

5.5

9.5

6.5

5.5

5

6.5

6

5

4.5

4.3

4.5

4.5

4.9

4.5

4.3

-

May

4.1

3.6

3.3

3.3

3.3

3.0

2.8

2.8

3.0

3.0

2.8

2.7

2.6

2.6

2.7

2.8

2.8

2.6

2.4

2.3

2.3

2.4

2.6

2.7

2.6

2.3

2.3

2.3

2.S

2.3

June

2.2

2.2

2i2

2.0

1.9

1.9

2.0

2.0

2.2

2.2

2.2

2.2

2.0

1.8

1.8

1.7

1.7

1.9

1.9

1.8

1.7

1.6

1.5

1.5

1.5

1.5

1.5

1.4

1.3

1.3

-

July

1.2 

1.1

1.1

1.1

1.1

.9

1.1

.8

.8

.8

.8

.8

.8

 8.

.7

.8

.8

.8

.8

.8

.8

.9

.8

.8

.8

.8

.7

.7

.6

.6

.6

Aug.

0.6 

.5

.5

.5

.5

.5

.5

.5

1.3

2.6

1.2

1.1

1.1

1.0

1.0

.9

.8

.8

.8

.8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.8

.8

Sept.

0.8 

 8

.8

.8

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.8

.8

.8

.8

.7

.7

.6

.6

.6

.5

.5

.5

.5

.5

.4

-

Month

Calendar year 1941 ......................

Water year 1941-42 ......................

Secondfoot-days

12,840.5

26.0

1,249.9

Maximum

7

725

10

4.1

2.2

1.2

2.6

39

Minimum

2.6

3.0

2.6

3.0

3.0

2.3

1.3

.6

.5

.4

.4

Mean

3.64

3.39

7.88

35.2

5.03

4.54

4.28

5.39

2.80

1.82

.84

.84

.69

3.42

Runoff in 

acre- feet

224

202

484

25,470

309

252

263

321

172

108

52

52

41

2,480

Peak discharge.- Dec. 10 (5:30 p.m.) 146 sec.-ft.; Dec. 29 (2 a.m.) 50 sec.-ft.; Feb. 22 (2 a.m.) 

52 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
104 LOS ANGELES RIVER BASIN 

Santa Anita Creek near Sierra Madre, Calif.

Location.- Water-stage recorder, lat. 34°11'30", long. 118°01'00", In SWiNE-i sec. 10, 

T. 1 N., R. 11 W., at head of Hermits Falls, 4 miles northeast of Sierra Madre. 

Altitude of gage, about 1,460 feet (revised, from topographic nap).

Drainage area.- 10.5 square miles.

Records available.- July 1916 to September 1942.

Average discharge.- 26 years, 5.06 second-feet.

Extremes.- Maximum discharge during year, 42 second-feet Dec. 28 (gage height, 1.71 

feet); minimum dally, 0.3 second-foot Sept. 23-27.

1916-42: Maximum discharge, about 5,200 second-feet Mar. 2, 1938, based on Inflow 

to flood-control reservoir; practically no flow Aug. 18 to Sept. 14, 1929.

Remarks.- Records good. No diversions above station.

 Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7 

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.

2.0

1.9

1.8

2.0

2.2

2.4

2.5

2.' 6

2.6

2.4

2.2

3.2

3.0

2.9

2.7

2.6

2.7

2.7

3.4

4.4

4.1

4.8

4.6

4.8

4.2

4.1

4.1

4.1

3.8

3.6

3.5

Nov.

3.5

3.5

3.4

3.4

3.4

3.2

3^2

3.1

3.1

3.1

3.1

3.1

3.1

3.0

3.0

3.0

3.0

3.0

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

2.9

3.0

3.2

Dec.

3.1

3.1

4.1

3.5

3.1

3.0

3.0 

2.9

2.9

20

6.5

4.6

4.1

3.8

3.5

3.4

3.4

3.2

3.1

3.1

3.1

3.1

3.5

3.4

3.6

4.8

3.9

8.5

23

13

9.5

Jan.

8

6.5

6

5

4.8

4.4

4.2

3.9

3.8

3.6

3.5

3.2

3.2

3.1

3.0

2.9

2.9

2.9

3.0

2,9

2.7

3,0

2.9

3.0

3.0

3.0

3.9

2.7

2.7

2.7

2.6

Feb.

2.5

2.5

2.4

2.4

2.4

2.2

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.2

2.2

2.2

2.2

4.2

7.5

4.1

3.5

3.5

3.2

3.2

3.1

_

_

-

Mar.

3.0

2.9

2.9

2.9

2.7

2.7

2.7

2.7

2.7

3.8

3.6

3.4

5

5.5

4.6

4.1

3.8

3.6

3.5

3.2

3.2

3.1

3.0

3.0

2.9

2.6

2.5

2.5

2.4

2.2

Apr.

2.2

2.4

2.7

4.9

3.2

3.2

3.0

3.0

3.5

3.8

3.5

3.4

5.5

4.6

3.9

4.9

3.S

3.5

3.4

4.8

4.4

3.8

3.5

3.4

3.4

3.4

3.4

3.1

3.0

-

May

2.9

2,7

2.5

2.4

2.4

2.4

2.2

2.2

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.2

2.0

1.8

1.8

2.0

2.0

2.1

2.1

2.1

2.0

1.9

2.0

2.0

1.9

June

1.9

1.9

1.9

l.S

1.7

1.7 

1.7

1.8

1.7

1.7

1.8

1.9

1.8

1.7

1.7

1.7

1.6

1.6

1.6

1.5

1.3

1.2

1.2

1.2

1.2

1.3

1.4

1.3

1.1

1.1

-

July

1.1

1.1

1.0

1.0

.8

.8

.7

.7

.7

.8

.S

.8

.8

I8

.8

.8

.8

.8

.7

.7

.6

.6

.5

.5

.5

.5

.5

.4

.4

.4

Aug.

0.5

.4

.4

.4

.4

.4

.4

.5

.9

.7

.6

.6

.6

.6

.6

.5

.5

.5

.5

.4

.4

.4

.4

.4

.5

.4

.5

.5

.6

.7

Sept.

0.7

.7

.7

.7

.6

.5

.4

.4

.5

.6

.6

.5

.4

.4

.4

.5

.5

.5

.4

.4

.4

.3

.3

.3

.3

.3

.4

.4

.4

-

Month

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

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

Bay. .......................................

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

Water year 1941-42 ......................

Secondroot-days

920.8

Maximum

g

23

Minimum

g g

2 1

2 2

2 2

.3

Mean

2 73

3 21

2 23

2.52

Runoff in 

acre-feet

152

137

93

1,830

Peak discharge.- Dec. 10 (3 p.m.) 34 sec.-ft.; Dec. 28 (11:30 p.m.) 42 see.-ft. 

Time basis;Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
LOS ANGELES RIVER BASIN 105

Little Santa Anita Creek near Sierra Madre, Calif.

Location.- Water-stage recorder and control, lat. 34°11'15", long. 118°02'35", near

center of NWi sec. 9, T. 1 N., R. 11 W., 2 miles northeast of Sierra Madre. Altitude 

of gage, about 2,200 feet (from-topographic map).

Drainage area.- 1.9 square miles.

Records available.- April 1916 to September 1942.

Average discharge.- 25 years (1916-25, 1926-42), 0.90 second-foot (24 years, 0.92 secondfoot; figure published In Water-Supply Paper 931 in error).

Extremes.- Maximum discharge during year, 8.6 second-feet Dec. 10 (gage height, 1.16 

feet); minimum dally, 0.1 second-foot July 21 to Aug. 9, Aug. 11-29, Sept. 6-30.

1916-42: Maximum discharge, 536 second-feet Mar. 2, 1938, computed on basis of 

Inflow to Sierra Madre flood-control reservoir; no flow during periods In 1919, 1924, 

and 1925.

Remarks.- Records good. No diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.6

.6

.6

.6

.6

.7

.7

.7

.6

.6

.6

.S

.7

.6

.6

.6

.6

.6

.7

.8

.8

.9

.9

.9

.8

.7

.8

.S

.7

.7

.6

Nov.

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

-

Dec.

0.5

.5

.8

.6

.6

.5

.5

.5

.5

2.5

1.1

.9

.8

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

1.4

2.2

1.6

1.4

Jan.

1.0

.9

.8

.8

.7

.7

.6

.6

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

Feb.

0.5

.4

.4

.4

.4

'.1

.4

.4

.4

.4

.4

.4

.7

.9

.5

.5

.5

.5

.5

.5

-

.

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February ...................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

0.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.4

.4

.6

.8

.6

.6

.6

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

Apr.

0.3

.3

.5

.7

.3

.3

.3

.3

.3

.6

.6

.6

.5

.9

.6

.6

.7

.6

.5

.5

1.0

.8

.7

.6

.6

.6

.6

.6

.5

.5

Secondfoot-days

21.5

16.8

25.5

1,391.8

18.0

12.7

13.8

16.5

12.5

10.8

5.1

3.4

3.5

160.1

-

May

0.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

Maximum

0.9

.6

2.5

39

1.0

.9

.8

1.0

.5

.4

.2

.2

.2

2.5

June

0.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

"

Minimum

0.6

.5

.5

.3

.5

.4

.3

.3

.4

.2

.1

.1

.1

.1

July

0.2

.2

.2

.2

.2

.2

.2

.£

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Aug.

0.1

.1

.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

.2

Mean

0.69

.56

.82

3.81

.58

.45

.45

.55

.40

.36

.16

.11

.12

.44

.2

Sept.

0.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

~

Runoff in 

acre feet

43

33

51

2,761

36

25

27

33

25

21

10

6.7

6.9

318

Peak discharge.- Dec. 10 (4 p.m.) 8.6 sec.-ft.; Dec. 28 (10 p.m.) 7.3 sec.-ft. 

Time basis; jsTclflc standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.

530350 O - 43 - 8
106 LOS ANGELES RIVER BASIN 

Eaton Creek near Pasadena, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°11'40", long. 

118"06'15", in SEi sec. 2, T. 1 N., R. 12 W., at mouth of canyon just upstream i'rom 

new bridge on old Mount Wilson toll road, and 4 miles northeast of Pasadena. Altitude of gage, about 1,830 feet (from topographic map).

Drainage area.- 6.5 square miles.

Records available.- March 1918 to September 1942.

Average discharge.- 24 years, 2.60 second-feet. Average combined discharge of cre'k 

and diversion, 24 years, 3.72 second-feet.

Extremes.- Maximum discharge during year, 54 second-feet Dec. 10 (gage height, 1.33 

feet); no flow for several months.

1916-42: Maximum discharge, 2,400 second-feet Mar. 2, 1938, from record of inflow 

to Eaton flood-control reservoir; no flow for sone periods in each year.

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

Records do not include water diverted above station by city of Pasadena.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

a. 8

a2.5

al.4

0

0

0

0

0

0

0

Nov. Dec.

0

0

.1

.1

0

0

0

0

0

12

2.6

.1

0

0

0

0

0

0

0

0

0

0

.1

0

.3

.2

0

5.1

13

9

1.9

Jan.

0.2

1.5

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 o

0

0

0

Month

October ......... ................

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

Decembe r .........................

Calendar year 1941 ...........

January ..........................

February .........................

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

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

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

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

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

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

September ................... ....

Water year 1941-42 ............

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.7

7

1.4

0

0

0

0

0

_

-

-

Secondfoot-days

t.'

0

42. E

4,188.5

I.'

9.] 2.'

2.E

0

0

0

0

0

63. £

Mar.

0

0

0

0

0

0

0

0

0

0

.1

0

0

1.5 1.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

.9

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

1.4

.1

0

0

0

0

0

0

-

Maximum

2.5

0

13

159

1.5

7

1.5

1.4

0

0

0

0

0

13

May

Minimum

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Peak discharge.- Dec. 10 (4:30 p.m.) 54 sec. -ft.; Dec. 28 (11 p

June

Mean

0.15

0

1.S1

11.5

.OE

.32

.OS

.06

0

0

0

0

0

. July Aug. Sept.

"

»

Runoff in Diversion 

acre-feet acr£feet:

9.3 142

0 126

84 145

8,310 2,170

3.4 159

18 102

5.4 127

5.0| 149

0 102

0 72

0 45

0 38

0 34

125 1,240

m. ) 36 sec. -ft.

Diversion by city of Pasadena. Records furnished by that city.

a No gage-height record; discharge computed on basis of recorded 

diversion.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; 

To convert war time to standard time, subtract 1 hour.

 ange in stage and records of 

Pacific war time thereafter.
LOS ANGELES RIVER BASIN 1C 

Rio Hondo near Montebello, Calif.

Location.- Water-stage recorder, lat. 34°01'55", long. 118°04'15", in Potrero Grande 

Grant, at Montebello oil field, about 1,000 feet upstream from Mission Bridge, and 

2 miles northeast of Montebello, Los Angeles County. Altitude of gage, about 200 

feet.

Records available.- October 1928 to September 1942. 

Average discharge.- 14 years, 66.2 second-feet.

Extremes.- Maximum discharge during year, 4,100 second-feet Dec. 10 (gage height, 8.03 

feet;; minimum, 15 second-feet July 21, 22, 24.

1928-42: Maximum discharge, 28,000 second-feet Mar. 2, 1938; minimum, 0.3 secondfoot Dec. 1, 1933.

Remarks.- Some water from San Gabriel River drains down Rio Hondo.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

K. E. lledger, chief engineer, and M. E. Salsbury, acting' chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

30 

28 

28 

30 

28

27 

26 

26 

25 

25

25 

54 

28 

30 

28

27 

28 

28 

31 

47

74 

P8 

77 

54 

40

36 

57 

30 

30 

31 

30

Nov.

30 

30 

30 

28 

30

30 

30 

31 

30 

31

31 

32 

32 

32 

32

32

32 

32 

34 

34

34 

34 

32 

31 

31

28 

28 

28 

28 

28

Dec.

28 

28

133 

35 

30

30 

30 

28 

31 

687

48 

41 

41 

40 

40

36 

38 

38 

38 

37

34 

34 

93 

34 

87

48 

41 

376 

313 

117 

48

Jan.

71 

48 

48 

48 

48

46 

44 

44 

44 

44

43

41 

41 

41 

41

35 

32 

32 

30 

28

32 

58 

30 

34 

31

32 

32 

34 

28 

28 

34

Feb.

40 

41 

40 

34 

34

36 

38 

37 

36 

35

38 

40 

43 

43 

43

43 

43 

43 

38 

41

202 

78 

41 

38 

40

37 

38 

40

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 194] 

ary

1. .....................................

ter year 1941-42 . . .........

Mar.

37 

36 

38 

38 

35

38 

38 

38 

36 

36

67 

36 

34 

290 

58

40 

35 

36 

34 

34

31 

31 

37 

38 

36

36 

36 

32 

32 

36 

36

Apr.

32 

31 

50 

112 

40

60 

36 

37 

35 

104

66 

32 

34 

106 

34

35 

98 

46 

36 

40

79 

132 

225 

215 

153

35 

37 

35 

34 

35

Secondfoot-days

1,146 

925 

2,682

66,388

1,222

1 , ?00 

1,415 

2,044 

961 

847 

641 

724 

621

14,528

May

37 

35 

28 

32 

35

30 

30 

28 

31 

31

32 

34 

35 

35 

35

55 

32

32 

30 

31

30 

31 

31 

28 

28

28 

28 

28 

28 

27 

26

Maximum

88 

34 

687

3,490

71 

202 

290 

225 

37 

32 

27 

61 

23

687

June

27 

28 

28 

28 

28

32 

30 

31 

31 

31

31 

31 

28 

30 

28

28 

28 

28 

27 

28

27 

38 

27 

26 

26

26 

27 

26 

26 

27

Minimum

25 

28 

28

21

28 

34 

31 

31 

26 

26 

17 

18 

19

17

July

27 

26 

26 

24 

23

23 

24 

22 

23 

22

22 

22 

20 

20 

19

19 

20 

19 

19 

18

18 

18 

17 

17 

19

18 

19 

19 

20 

19 

19

Aug.

20 

19 

19 

19 

19

18 

18 

19 

61 

47

23 

21 

21 

21 

23

22 

21 

23 

24 

23

23 

24 

23 

22 

20

20 

22 

22 

22 

21 

24

Sept.

21 

23 

22 

21 

22

20 

19 

19 

19 

19

20 

20 

20 

20 

20

21 

21 

21 

22 

21

21 

20 

20 

20 

20

23 

22 

22 

20 

22

r

u __ Runoff in 

Mean acre-feet

37.0 2,270 

30.8 1,830 

86.5 5,320

182 131,700

39.4 2,420 

46.4 2,580 

45.6 2,810 

68.1 4,050 

31.0 1,910 

28.2 1,680 

20.7 1,270 

23.4 1,440 

20.7 1,230

39.8 28,810

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.

To convert war time to standard time, subtract 1 hour.
108 LOS ANGELES RIVER BASIN 

Rio Hondo near Downey, Calif.

Location.- Water-stage recorder, lat. 33°56'40", long. 118°09'50n , In San Antonio Grant,

 on Stewart and Gray Road Bridge, half a mile upstream from mouth, and 14 miles west 

of Downey, Los Angeles County. Altitude of gage, about 95 feet.

Records available.- March 1928 to September 1942. 

Average discharge.- 14 years, 36.7 second-feet.

Extremes.- Maximum discharge during year, 4,240 second-feet Dec. 10 (gage height, 9.30 

feet); no flow during several periods.

1928-42: Maximum discharge, 24,400 second-feet Mar. 3, 1938 Cgage height, 13.5 

feet); no flow during part of each year.

Remarks.- Some water from San Gabriel River drains down Rio Hondo.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through

 H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

5

4.6

4.1

4.1

5

5.5

6.5

7

8.5

8.5

8.5

8

1.7

7

6.5

5.5

4.1

4.6

8.5

4.1

7

3.3

1.2

.4

.5

0

.4

0

0

0

0

Nov.

1.4

3.6

3.0

4.6

4.6

3.0

2.2

2.0

1.4

2.2

2.0

2.5

1.4

2.5

2.5

2.5

2.5

2.2

2.2

1.2

.9

2.0

2.2

2.8

5

3.3

2.8

5

1.7

1.4

-

Dec.

2.2

6.5

8

6

3,6

4.6

4.6

5

4.6

564

68

16

7

3. '2

3.2

4.7

4.0

3.2

2.3

1.9

1.0

.1

27

5.5

1.0

63

10

159

448

14

42

Jan.

40

28

20

16

12

10

8.5

9

7

4.0

4.0

2.3

5.5

5.5

.2

.2

.2

.2

.2

.2

.5

.7

.1

.1

0

0

0

0

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

3.2

. 5.5

5.5

3.2

59

89

10

9.5

9

6

7

7.5

-

-

-

Mar.

4.0

0

1.0

4.0

5.5

3.2

4.0

1.8

0

1.0

11

0

0

183

98

15

7

6

4.7

4.0

1.8

.7

0

1.2

.7

0

0

0

0

0

-

Apr.

0

0

2.6

56

4.7

7.5

3.2

4.0

4.7

26

82

13

5.5

45

28

7

68

10

2.3

0

0

0

0

0

52

7

7.5

20

16

10

-

May

7

4.7

3.2

1.2

1.2

2.3

1.9

4.7

5.5

4.0

3.2

4.7

4.0

4.7

1.9

4.0

4.7

4.0

4.7

4.0

3.2

2.3

3.2

4.7

2.8

2.8

4.0

3.2

2.8

3.2

2.8

June

2.8

1.9

1.9

2.3

2.8

2.8

3.2

2.3

.7

1.2

1.2

1.8

1.0

2.8

2.8

1.6

1.9

1.2

4^7

1.9

2.3

4.7

4.0

4.7

4.7

4.7

7

12

5.5

4.7

-

July

1.9

3.2

4.7

10

13

2.8

4.0

0

.3

2.8

4.0

3.2

4.7

3.2

4.7

2.8

2.8

2.3

2.3

2.8

.7

.7

.7

1.9

.7

.3

2.3

1.2

.3

1.0

.5

Aug.

1.0

1.9

1.0

3.2

1.6

2.8

1.2

1.9

1.6

0

1.6

1.9

1.6

1.9

2.3

6 '

4.0

1.9

.1

.7

2.8

2.8

3.2

.2.8

3.2

2.8

2.3

.5

2.8

5.5

5.5

Sept.

3.2

2.8

2.8

2.8

1.0

7

7

6

7.5

1.6

4.7

.3

.7

1.9

1.2

1.2

.3

1.2

2.8

1.9

5.5

8.5

7.5

2.8

6

4.0

.7

1.9

2.8

1.2

-

Month

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

Calendar year 1941 ......................

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

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

Septembe r ..................................

Water year 1941-42 ......................

Secondfoot-days

130.1

76.6

1,493.2

47,390.3

98.8

3,392.4

Maximum

8.5

5

564

3,690

8.5

564

Minimum

0

.9

.1

0

.3

0

Mean

4.20

2.55

48.2

130

3.57

3.29

9.29

Runoff in 

acre- feet

258

152

2,960

94,000

425

219

196

6,730

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
LOS ANGELES RIVER BASIN 

Rio Hondo Slough near Montebello, Calif.

109

Location.- Water-stage recorder, lat. 34°01'45", long. 118°04'07", In Paso de Bartolo 

Grant, at San Gabriel Boulevard Bridge, 2 miles northeast of Montebello, Los Angeles 

County.

Records available.- October 1932 to September 1942.

Extremes.- Maximum discharge during year, 68 second-feet Dec. 10 (gage height, 7.43 feet); 

minimum dally, 20 second-feet July 25, 26.

1932-42: Maximum discharge not determined, occurred on Mar. 2, 1938; minimum, 4.8 

second-feet Oct. 4, 1935.

Remarks.- Some water from San Gabriel River drains down Rio Hondo Slough.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

25

25

24

25

25

24

24

24

24

24

24

25

26

26

26

26

26

26

26

27

28

30

28

28

27

27

28

28

28

28

28

Nov.

28

28

28

27

27

27

27

27

28

28

28

29

28

28

28

28

28

27

27

27

27

27

26

27

26

26

26

26

26

26

-

Dec.

26

26

29

28

26

26

26

26

27

43

34

28

27

27

27

28

28

28

28

27

27

26

27

27

27

29

28

34

41

37

32

Jan.

30

28

28

28

29

28

28

28

28

28

28

28

28

28

27

26

27

28

28

28

28

29

29

29

28

28

28

27

26

26

27

Feb.

28

28

28

28

28

28

28

28

28

28

28

28

27

27

27

27

27

27

27

27

26

33

29

28

28

27

27

27

-

-

-

I 

Month

October. ................................

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

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

Calendar year 1941 ...................

January. ................................

February ...................................

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

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

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

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

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

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

September ............... .................

Water year 1941-42 ......................

Mar.

27

27

27

27

27

27

27

26

26

26

27

27

27

32

35

31

30

29

29

29

29

29

29

29

30

29

29

28

28

28

28

Apr.

27

27

27

31

30

30

30

29

27

29

33

30

30

32

32

30

32

30

30

28

28

29

30

28

27

28

28

28

28

29

Secondfoot-days

810

816

900

9,787

864

777

879

877

826

729

670

653

636

9,437

-

May

29

29

29

29

29

29

29

29

28

28

28

28

26

26

26

26

26

26

26

25

25

25

25

26

26

26

25

25

24

24

24

Maximum

30

29

43

86

30

33

35

33

29

25

24

22

22

43

June

24

24

24

24

24

24

25

24

24

24

25

25

25

25

25

24

24

24

25

25

25

25

24

24

24

24

24

24

24

23

-

Minimum

24

26

26

18

26

26

26

27

24

23

20

21

21

20

July

24

24

23

23

22

22

21

21

21

21

21

21

21

22

22

22

22

22

22

22

22

22

21

21

20

20

21

21

21

21

21

Aug.

21

21

22

21

21

21

21

21

21

22

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

21

Mean

26.1

27.2

29.0

26.8

27.9

27.8

28.4

29.2

26.6

24.3

21.6

21.1

21.2

25.9

Sept.

21

21

21

21

21

21

21

21

22

21

22

21

22

21

21

21

21

21

21

21

21

21

21

21

21

21

21

22

22

22

-

Runoff in 

acre feet

1,610

1,620

1,790

19,400

,710

,540

,740

,740

,640

,450

,330

,300

1,260

18,730

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
10 3ALLONA CREEK PAS IN

Ballona Creek near Culver City, Calif.

Location.- Water-stage recorder, lat. 33°59'50", long. 118°24'10", in La Ballona Grant, 

on Sawtelle Boulevard Bridge, about li nlles south of Culver City, Los Angeles County. 

Altitude of cage, about 40 feet.

Drainage area.- Ill square miles.

Records available.- February 192C to Septenber 1942.

Average discharge.- 14 years, 36.6 second-feet.

Extremes.- Maximum discharge during year, 7,500 second-feet Dec. 10 (gage height, 10.80 

feet); minimum, 1.9 second-feet several tines.

1928-42: Maximum discharge, 19,000 second-feet Mar. 2, 1938; no flow during parts 

of most years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

8

9

8

9

9

10

11

9.5

9.5

10

12

198

9.5

10

11

14

11

11

12

74

236

94

145

13

10

9.5

79

10

7.5

8

7.5

Nov.

G.5

5.5

5.5

5.5

5.5

6

6

6.5

5.5

6

7.5

15

6.5

7.5

6.5

6

5.5

5.5

5

4.5

7.5

7

5

7.5

6.5

6.5

B.5

8

7

7.5

-

Dec.

10

7.5

317

6

4.5

4.5

3.4

4.0

22

P90

9.5

7.5

5.5

5.5

5.5

5.5

5

5.5

4.8

5

5

4.5

82

4.8

173

42

8.5

771

144

189

12

Jan.

173

10

8

8.5

7.5

8

5

5

4.8

4.5

4.5

5

5.5

6

6

5.5

5.5

5.5

4.5

4.8

4.5

120

7

5.5

5.5

4.8

5.5

5

5

5

4.8

Feb.

4.5

4.5

4.8

4.0

3.7

4.0

4.0

3.7

3.7

4.5

22

13

7

20

11

7.5

7

6.5

5.5

5

501

74

5.5

6

5.5

5.5

7.5

4.0

_

_

-

Mar.

3.7

3.4

3.4

2.8

2.8

3.1

3.1

2.8

3.4

4.2

117

6.5

5.5

554

31

6

5.5

5

4.5

4.5

4.0

3.7

4.0

9

4.2

3.

3.

3.

3.

3.

4.0

Apr.

4.0

4.0

68

126

8.5

57

5.5

5.5

5.5

219

115

7

7

243

9

7

170

7.5

7.5

7.5

151

14

8

7

6

5

5.5

17

5.5

5.5

-

Hay

6.5

4.2

4.5

5.5

7

7

4.2

6.5

3.7

3.4

5.5

7

10

5

6.5

3.7

3.1

5.5

6

6

5.5

5.5

5

4.2

6.5

6

9

7

5.5

5

4.8

June

9.5

14

11

9

8.5

8.5

6

9

8.5

9

6

12

8

7.5

14

8.5

11

8

11

10

12

14

13

14

10

10

10

9.5

13

10

-

July

10

9.5

8

8.5

8

9.5

9

10

9

9

10

8.5

13

7.5

7

6

6

9.5

6

8.5

8

9

8.5

10

10

9.5

9.5

10

9.5

9.5

10

Aug.

6.5

6

7

6

6

7.5

7

8

25

42

9

9

11

8.5

8.5

8.5

8

8

7

6.5

7.5

4.8

4.5

5

5.5

6

5.5

5.5

6.5

4.8

6.5

Sept.

7

6

6.5

6

5.5

4.0

4.0

5

6.5

6

6.5

7

6

6

7

7.5

7

7.5

7

5.5

9

7.5

7.5

5.5

7

8

6.5

7.5

7.5

7.5

-

Month

Water year 1941-42 ......................

Secondfoot days

31,267.6

459.7

754.9

1,308.0

172.8

267.1

197.0

8,697.3

Maximum

236

15

990

2,680

173

501

554

243

10

14

13

42

9

990

Minimum

7.5

4.5

3.4

3.4

4.5

3.7

2.8

4.0

3.1

6

6

4.5

4.0

2.8

Mean

34.7

6.63

92.4

85.7

14.8

27.0

26.4

43.6

5.57

10.2

8.90

8.62

6.57

23.8

Runoff in 

acre feet

2,130

395

5,680

62,010

912

1,500

1,630

2,590

343

604

547

530

391

17,250

Time basis: Pacific standard time prior to 2 

o convert war time to standard time, subtract 1

Feb. 9, 1942; Pacific war time thereafte
TOPANGA CREEK BASIN 111

Topanga Creek near Topanga Beach, Calif.

 Location.- Water-stage recorder, lat. 34°03'50", long. 118°35'10", in Boca de Santa 

Monica Grant, at highway bridge, 2 miles north of Topanga Beach, Los Angeles County.

Drainage area..- 17.9 square miles.

Records available.- January 1930 to Septenber 1938, October 1939 to September 1942.

Average discharge.- 11 years, 7.22 second-feet.

Extremes.- Maximum discharge during year, 385 second-feet Dec. 28 (gage height, 5.69 

feet); minimum, 0.05 second-foot many days.

1930-38, 1939-42: Maximum discharge, 7,960 second-feet Mar. 2, 1938; no flow at 

times.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7 

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.

,0.3

.3

.3

.4

.4

.4

.3 

.3

.2

.2

.2

1.1

.4

.4

.2

.2

.2

.2

.3

.4

.5

.9

.5

.3

.3

.2

.5

.5

.4

.3

.3

Nov.

0.3

.4

.3

.2

.2

.2

.2 

.2 

.2

.2

.2

.2

.2

.2

.1

.2

.2

.2

.1

.1

.1

.2

.2

.2

.2

.2

.2

.3

.3

.3

-

Dec.

0.3

.2

.4

.4

.3

.2

.2 

.2 

.2

3.0

1.7

1.2

1.1

1.0

.8

.8

.7

.6

.6

.6

.6

.6

.6

.6

.9

1.6

 .9

47

22

6

3.0

Jan.

2.5

2.1

1.7

1.4

1.3

1.0

.9 

.8 

.7

.6

.6

.6

.6

.6

.5

.6

.6

.5

.5

.4

.5

1.9

.5

.3

.3

1.3

1.4

1.2

1.0

1.0

1.0

Feb.

1.1

1.1

1.0

.9

.7

.7

.8 

.6 

.6

.5

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

3.3

3.1

1.1

.8

.7

.6

.6

.6

-

-

-

Mar.

0.6

.5

.5

.4

.4

.3

.3 

.2 

.3

.3

1.5

.7

.6

8.5

4.1

1.9

1.3

1.0

.8

.6

.6

.6

.6

.6

.6

.6

.5

.5

.4

.4

.5

Apr.

0.4

.5

.6

1.5

1.1

1.3

.9

.7 

.7

2.0

2.1

1.3

1.0

11

2.0

1.3

2.2

1.6

1.5

1.3

1.6

1.7

1.4

1.1

.9

.9

.8

.7

.6

.6

-

May

0.6

.6

.6

.6

.6

.6

.6

.6 

.5

.5

.5

.4

.4

.4

.5

.4

.4

.4

.4

.3

.3

.3

.3

.4

.4

.4

.3

.3

.3

.2

.2

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

-

July

0.1

.1

.2

.1

.1

.1

.1 

.1 

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

Aug.

0.1

.1

.1

.1

.1

.1

I e.05

.1

.1

.1

.1

.1

.1

.1

 e.05

Sept.

 eO.05

~

Month

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

Water year 1941-42 ......................

Secondfoot-days

11.4

6.3

98.3

9,138.6

28.9

30.7

45.3

13.3

6.0

3.8

2.2

1.5

272.3

Maximum

1.1

.4

47

1,100

2.5

3.3

8.5

11

.6

.2

.2

.1

_

47

Minimum

0.2

.1

.2

.1

.3

.2

.4

.2

.2

.1

_

-

Mean

0.37

.21

3.17

25.0

.93

.88

.99

1.51

.43

.20

.12

.07

.05

.75

Runoff in 

acre-feet

23

12

195

18,120

57

49

61

90

26

12

7.5

4.4

3.0

540

e Daily discharge less than 0.1 second-foot.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

onvert war time to standard time, subtract 1 hour.
112 MA.LIBU CREEK BASIN

Malibu Creek at Crater Camp, near Calabasas, Calif.

Location.- Water-stage recorder, lat. 34°04'30", long. 118°42'10", in SWi sec. 18, T. 1 

S., R. 17 W., a quarter of a mile downstream from Crater Camp, and 6 miles southwest 

of Calabasas.

Drainage area.- 103 square miles.

Records available.- January 1931 to September 1942.

Average discharge.- 11 years, 23.7 second-feet.

Extremes.- Maximum discharge duri'ng year, 140 second-feet Dec. 28 (gage height, 4.58 

feet); minimum daily, 0.1 second-foot Sept. 1, 4-7, 30.

1931-42: Maximum discharge, 10,000 second-feet Mar. 2, 1938 (gage height, 15.90 

feet); no flow for periods in some years.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

5

5.5

5.5

5.5

3.0

2.4

2.4

2.4

2.4

2.4

2.4

3.0

2.5

2.4

2.4

2.4

2.4

2.4

2.4

2.5

2.7

3.3

3.3

3.3

3.4

3.4

3.4

3.4

3.5

3.5

3.4

Nov.

3.4

3.4

3.3

3.2

3.2

3.2

3.1

3.0

3.0

3.0

2.9

2.8

2.8

2.8

2.8

2.S

2.S

2.S

2.8

3.0

3.1

3.2

3.4

3.6

3.7

3 8

4!o

3.7

3.4

3.2

-

Dec.

3.0

2.8

2.6

2.4

2.4

2.4

2.4

2.4

2.4

5

4.8

4.7

4.6

4.5

4.4

4.3

4.2

4.1

4.1

4.1

4.1

4.1

4.1

4.1

4.2

4.4

4.2

32

27

12

6.5

Jan.

5.5

5

4.8

4.5

4.4

4.2

4.0

7.5

7.5

3.6

3.5

3.4

3.2

3.1

3.0

3.0

3.0

3.0

3.0

3.0

3.0

3.5

2.

2.

2.

2.

2.

2.

2.

2.

2.

Feb.

2.4

2.4

2.4

2.4

2.4

2.4

2.3

2.2

2.2

2.2

2.1

2.1

2.1

2.1

2.0

2.0

2.0

2.0

2.0

2.0

4.5

4.2

3.5

3.2

3.0

2.S

2.7

2.7

-

-

-

Mar.

2.6

2.5

2.4

2.4

2.3

2.0

2.0

2.0

2.0

2.0

2.6

2.7

2.7

11

6

4.0

3.3

3.0

2.8

2.8

2.8

2.S

2.8

 2.8

2.S

2.8

2.7

2.6

2.5

2.5

2.4

Apr.

2.3

2.2

2.3

3.5

3.3

3.0

2.8

2.7

2.7

4.0

4.0

3.5

3.0

7

5.5

4.5

5

4.1

4.1

4.1

4.1

4.1

4.1

3.7

3.5

3.4

3.3

3.3

3.3

3.3

-

Hay

3.3

3.3

3.3

3.3

3.3

3 3 3)2 2.9

2.9

2.9

3.1

3.1

2.9

2.6

2.5

2.4

2.3

2.2

2.1

2.0

2.0

2.0

2.0

1.9

1.9

1.9

1.9

1.9

1.9

1.9

1.9

June

1.8

1.8

1.8

1.6

1.4

1.4

1.4

1.4

1.6

2.2

2.0

1.8

1.4

1.8

1.6

1.3

1.4

1.4

1.4

1.6

1.4

1.1

1.1

1.1

1.1

1.1

1.0

1.0

1.0

1.0

-

July

1.0

1.0

.9

.9

.9

.9

.6

.6

.6

.5

.6

.6

.5

.7

.7

.7

.7

.7

.9

.9

.9

.7

.6

.6

.6

.6

.6

.7

.7

.7

.6

Aug.

0.6

.5

.4

.4

.3

.2

.3

.4

.4

.5

.5

.5

.5

.6

.6

.6

.7

.6

.6

.5

.5

.5

.4

.4

.4

.4

.3

.3

.3

.2

.2

Sept.

0.2

.1

.2

.1

.1

.1

.1

.2

.3

.2

.2

.2

.3

.3

.3

.3

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.2

.2

.1

-

Month

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

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

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

Water year 1941-42 ......................

Secondfoot-days

97.9

95.2

178.3

35,607.2

110,6

70.3

92.6

109.7

7S.1

43.0

22.2

13.6

7.4

918.9

Maximum

5.5

4.0

32

2,200

7.5

4.5

11

7

3.3

2.2

1.0

.7

.4

32

Minimum

2.4

2-0

2.4

2.0

2.0

2.2

1.9

1.0

.5

.2

.1

.1

Mean

5.75

3.57

2.51

2.99

3.66

2.52

1.43

.72

.44

.25

2.52

Runoff in 

acre- feet

194

189

354

70,630

219

139

184

218

155

85

44

27

15

1,820

Time basis: Pacific standard time prior to 2 a.m., 

convert war time to standard time, subtract 1 hour.

Feb. 9, 1942; Pacific war time thereafter. To
SANTA CLARA RIVER BASIN 113

Santa Clara River near Saugus, Calif.

Location.- Water-stage recorder, lat. 34°25'30", long. 118°35'10", in San Francisco Grant, 

at bridge on U. S. Highway 99, 3 miles west of Saugus, Los Angeles County. Altitude 

of gage, about 1,030 feet.

Drainage area.- 355 square miles.

Records available.- October 1929 to September 1942.

Average discharge.- 13 years, 12.7 second-feet.

Extremes.- Maximum discharge during year, 443 second-feet Dec. 28 (gage height, 6.25 

feet); minimum, 0.4 second-foot Aug. 11.

1929-42: Maximum discharge, 24,000 second-feet Mar. 2, 1938; no flow at times in 

each year 1935-39.

Cooperation.- Records furnished by Los Angeles County Flood Control District, through 

H. E. Hedger, chief engineer, and M. E. Salsbury, acting chief engineer during the 

war emergency.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

3.0

3.5

1.5

2.0

1.0

1.5

1.5

2.0

2.5

3.0

3.5

5

4.0

4.5

4.5

5

6

5.5

6

7

7

8

7

8

8

5.5

11

9.5

8

6

5.5

Nov.

5

5.5

5

5

4.5

5

4.5

4.5

5

6

7

6

6

6

6

5.5

6

6

6

7

8

8.5

8.5

8.5

8.5

9.5

8.5

9.5

9.5

9.5

-

Dec.

9.5

8.5

8.5

8.5

8.5

8

8

8

8

15

8.5

9.5

9.5

8.5

8

8

8.5

8

6

7

8

8

9

e.s

8.5

8

8

49

28

41

117

Jan.

120

112

142

96

120

116

108

108

105

102

98

108

112

116

108

98

120

128

144

124

98

95

120

148

167

144

132

128

116

132

89

Feb.

71

73

73

76

102

105

108

92

105

92

82

105

132

132

112

116

120

136

120

112

120

116

116

105

120

108

39

98

_

-

-

liar.

86

102

98

102

112

112

112

120

120

120

120

116

124

148

116

116

115

115

114

95

95

82

120

116

102

112

116

112

102

59

24

Apr.

22

14

13

13

12

13

12

12

13

18

12

13

10

18

15

14

10

8

13

12

14

15

15

8.5

7

6

16

16

15

14

-

May

12

13

21

20

15

11

11

10

8

9.5

10

7

6

7

7

8

9.5

8.5

10

8

9.5

8.5

9.5

8.5

8

6

11

7

9.5

9.5

7

June

8.5

8.5

8

7

9.5

8

6

5

7

9.5

7

5

5.5

5.5

4.5

5

5.5

5.5

5

5

6

6

8

6

4.5

4.5

4.0

5

4.0

4.0

-

July

4.5

3.5

2.5

4.0

3.5

2.0

3.0

2.5

3.0

3.0

3.0

4.0

4.0

4.5

3.5

3.0

3.0

4.0

4.5

4.5

5

5

4.5

2.0

3.5

4.5

3.0

4.0

2.0

2.0

1.5

Aug.

2.0

4.0

3.5

5

3.0

2.0

1.5

-6

.7

.8

.6

.9

2.0

3.0

2.5

2.5

1.0

.9

.9

1.0

1.5

1.5

2.5

2.5

1.5

1.5

3.5

2.0

1.0

.9

1.0

Sept.

1.5

1.5

2.0

2.0

2.0

1.0

.8

.8

.8

.8

.8

.8

.7

.8

.8

.9

2.0

1.5

1.5

1.5

1.5

1.0

1.0

1.5

1.5

1.0

1.5

1.5

1.5

1.5

-

Month

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

Hay. ......................................

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

September. .................................

Water year 1941-42 ......................

Secondfoot-days

156.0

200.0

465.0

20,947.1

3,654

2,936

3,303

393.5

305.5

182.5

106.5

57.8

38.0

11,797.8

Maximum

11

9.5

117

3,450

167

136

148

22

21

9.5

5

5

2.0

167

Minimum

1.0

4.5

6

1.0

39

71

24

6

6

4.0

1.5

.6

.7

.6

Mean

5.03

6.67

15.0

57.4

118

105

107

13.1

9.85

6.08

3.44

1.86

1.27

32.3

Runoff in 

acre-feet

309

397

922

41,540

7,250

5,820

6,550

780

606

362

211

115

75

23,400

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

convert war time to standard time, subtract 1 hour.
114 SANTA CLARA RIVER BASIN 

Piru Creek near Piru, Calif.

Location.- Water-stage recorder and broad-crested weir control, lat. 34°25'30", long. 

118"45'45", in southern part of Temescal Grant, about IS miles northeast of Piru, 

Ventura County, and 2 miles upstream from aouth. Altitude of gage, about 780 feet.

Drainage area.- 432 square miles.

Records available.- October 1911 to September 1913 and October 1934 to September 1942. 

October 1927 to September 1934, at site at Piru, li miles downstream.

Average discharge.- 15 years (1927-42), 62.5 second-feet.

Extremes.- Maximum discharge during year, 948 Second-feet Dec. 29 (gage height, 3.91 

feet); minimum daily, 5 second-feet many days.

1911-13, 1927-42: Maximum discharge, 35,600 second-feet Mar. 2, 1938, by slopearea method; no flow during parts of some years.

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

Doheny ditch diverts above station and Piru Water Co.'s ditch diverts below.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

27

28

27

27

27

26

26

26

26

26

26

26

29

22

22

24

24

24

24

30

34

46

44

54

53

44

43

42

39

36

33

Nov.

34

34

33

32

30

30

30

31

31

f32

33

34

34

94

33

33

34

36

35

35

34

34

34

34

34

34

34

34

45

62

-

Dec.

59

50

54

56

54

48

44

43

48

253

178

102

73

60

56

54

52

52

52

52

52

49

48

52

52

52

53

408

632

342

203

Jan.

150

113

98

87

77

68

66

71

76

77

76

74

71

69

70

68

68

62

60

57

56

64

96

87

80

85

91

91

82

73

69

Feb.

66

63

61

60

59

58

58

56

54

52

51

50

50

49

47

47

48

46

46

46

65

86

60

55

52

50

49

46

-

_

-

Mar.

45

44

44

43

42

42

41

40

40

40

48

47

44

61

75

70

64

65

65

61

57

53

52

51

50

48

46

45

44

43

41

Apr.

41

42

43

75

105

82

67

60

57

107

250

161

118

173

201

128

111

102

96

85

82

102

94

83

73

69

66

65

62

60

-

May

60

58

55

53

50

49

48

47

47

48

48

48

47

46

44

44

42

40

36

fS7

a38

f34

33

32

32

31

28

26

27

26

26

June

25

E5

24

23

E3

23

22

21

22

21

22

22

21

20

19

18

17

16

16

15

14

14

14

14

14

14

14

14

14

13

July

12

12

12

11

10

10

9

8.5

8.5

8.5

9

9

9

9

8.5

8.5

8.5

9

9

9

8

.5

6.5

6.5

6.5

6.5

Aug.

6.5

6

5.5

5.5

5.5

5.5

5.5

5

5.5

6

7

6.5

5.5

5.5

5.5

5.5

5.5

5

5

5

5.5

5

5

5

5.5

5.5

5-5

6

6

6.5

6.5

Sept.

7

7

7

7

7

6.5

6

6

6

6.5

6.5

7

6

5.5

5.5

5.5

5.5

6

6

5.5

5

5

5.5

5.5

5.5

5.5

5.5

5

5.5

6

Month

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

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

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

Water year 1941-42 ......................

Secondfoot-days

985

1,037

3,383

116,055

2,432

1,530

1,551

2,860

1,280

554

266.5

174.5

179.0

16,232.0

Maximum

54

62

632

5,270

150

86

75

250

60

25

12

7

7

632

Minimum

22

30

43

22

56

46

40

41

26

13

6.5

5

5

5

Mean

31.8

34.6

109

318

78.5

54.6

50.0

95.3

41.3

18.5

8.60

5.63

5.97

44.5

Runoff in 

acre-feet

1,950

2,060

6,710

230,200

4,820

3,030

3,080

5,670

2,540

1,100

 529

346

355

32,190

Peak discharge.- Dec. 10 (10 p.m.) 496 sec.-ft.; Dec. 29 (1:30 948 s.-ft.; Apr. 11 (7:30

a.m.) 420 sec.-ft.

a Ho gage-height record; discharge computed on basis of records of Sespe Creek.

f Computed on basis of partly estimated gage-height record.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA CLARA RIVER BASIN 115

Hopper Creek near Piru, Calif.

Location.- Water-stage recorder, lat. 54°C3'55" (revised), long. 118°49'40", on south 

line or T!Wi sec. 25, T. 4 N., R. 19 W., at highway bridge 2 miles southwest of Piru.

Drainage area.- 23.0 square miles.

Records available.- October 1930 to September 1932, October 1933 to September 1936, 

October 1937 to September 1942.

Average discharge.- 10 years, 6.55 second-feet.

Extremes.- Maximum daily discharge during year, 84 second-feet Dec. 28; no flow for 

several months.

1930-32, 1933-36, 1937-42: Maximum discharge, 8,000 second-feet Mar. 2, 1938; no 

flow for several months during each year.

Cooperation.- Records furnished by Ventura County Water Survey.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.7

.7

.7

.7

.7

.7

.7

.S

.8

.8

.8

.8

.7

.7

.7

.7

.7

.6

.6

.6

.6

.5

.5

.5

.4

.4

.3

.2

.2

.1

0

Nov.

0

0

0

0

0

0

0

0

0

.1

.1

-2

-1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.6

.5

-

Dec.

0.4

.3

.7

.6

.6

.6

.5

.5

.8

83

10

2.1

1.8

1.6

1.4

1.0

.8

.8

.6

.6

2.0

1.4

1.0

1.4

1.6

1.8

1.7

84

73

14

7.5

Jan.

5.5

3.7

3.4

3.1

2.8

2.6

2.3

2.0

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

2.0

2.9

2.7

2.6

2.4

2.3

2.1

1.9

1.8

1.8

Feb.

1.8

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.5

1.6

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

3.7

8

3.4

2.7

2.4

2.1

1.8

1.8

-

-

-

Month

October. ....................................

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

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

Calendar year 1941 ...................

January ....................................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 . . ...................

Mar.

1.7

1.7

1.6

1.6

1.5

1.5

1.4

1.3

1.3

1.3

1.8

1.6

1.6

7

6.5

7

4.7

2.5

2.2

2.0

1.9

1.9

1.8

1.8

1.7

1.6

1.6

1.6

. 1 ' 6

1.6

1.6

Apr.

1.6

1.6

1.7

6.5

5

4.0

3.0

2.0

2.0

9

9

4.1

2.0

39

8

3.2

2.8

1.9

1.4

1.2

1.9

4.0

2.0

1.9

1.8

1.6

1.5

1.4

1.3

1.2

-

Secondfoot-days

17.9

4.0

298.1

7,785.1

69.2

57.5

70.5

127.6

21.7

8.0

0

0

0

674.5

May

1.2

1.0

.9

.8

.7

.7

.8

.8

.8

.9

1.0

.9

.8

.7

.6

.6

.6

.6

.5

.4

.4

.5

.6

.7

.8

.8

.6

.5

.5

.5

.5

Maximum

0.8

.6

84

770

5.5

8

7

39

1.2

.5

0

0

0

84

June

0.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.5

.4

.4

.3

.3

.3

.2

.2

.2

.1

.1

0

0

.1

.1

.1

.1

0

0

-

Minimum

0

0

.3

0

1.6

1.5

1.3

1.2

.4

0

0

0

0

0

July Aug.

Mean

0.58

.13

9.62

21.3

2.23

2.05

2.27

4.25

.70

.27

0

0

0

1.85

Sept.

Runoff in 

acre-feet

36

7.9

591

15,440

137

114

140

253

43

16

0

0

0

1,340

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
116 SAIITA CLARA RIVER BASIN 

Sespe Creek near Flllmore, Calif.

Location.- Water-stage recorder, lat. 34°26'55", long. 118°55'35", In tffii sec. 12, T. 4 

N., R. 20 W., 0.1 mile downstream from Little Sespe Creek and 3$ miles north of 

Flllnore. Altitude of gage, about 590 feet.

Drainage area.- 254 square miles.

Records available.- November 1934 to September 1942. September 1911 to September 1913 

and October 1927 to November 1934 at site at Sespe, 3 miles downstream.

Average discharge.- 15 years (1927-42), 109 second-feet.

Extremes.- Maximum discharge during year, 3,150 second-feet Dec. 28 (gage height, 7.82 

feet); minimum dally, 0.2 second-foot July 12-14, Sept. 23, 26-30.

1927-42: Maximum discharge, 56,000 second-feet Mar. 2, 1938, by slope-area method; 

no flow at times In most years.

Remarks.- Records good. About 5,000 acre-feet diverted during the year by Fillnore 

Irrigation Co.'s canal 1 mile above station. (See 117.)

Discharge, in second-feet, water year October 1941 to Septemberl942

Day

1 

2 

3 

4 

5

6 

7 

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.

15 

15 

13 

13 

14

14 

14 

14 

14 

14

13 

15 

16 

15 

14

13 

13 

13 

15 

16

17 

23 

23 

22 

23

24 

31 

33 

32

27 

24

Nov.

22

21 

20 

19 

18

16 

16 

16 

16 

17

17 

18 

18 

18 

18

17

17 

17 

17 

18

19 

19 

19 

19 

19

19 

19 

19 

39 

73

Dec.

46

28 

31 

39 

33

33 

30 

29 

34 

329

200 

76 

60 

50 

49

48 

47 

43 

39 

40

38 

39 

39 

41 

39

44 

47 

1,360 

1,280 

425 

244

Jan.

175 

135 

114 

103 

97

92

89 

90 

94 

89

86 

82 

a77 

a72

f67

65 

64 

62 

a60

a58

f57 

97 

157 

99 

88

101 

92 

84 

78 

74 

70

Month

Goto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Feb.

69 

67 

65 

64 

62

62 

60 

58 

56 

56

55 

55 

55 

a54 

a54

a52 

a52 

aS6 

a56

a 51

f66 

107 

73 

63 

a54

f51 

49 

46

lendar year 1941 

ary

1. .....................................

ter year 1941-42 ... ..................

Mar.

44 

44 

42 

40 

39

41 

40 

38 

33

37

42 

42

41 

69 

105

94 

84 

80 

77 

70

65 

63 

60 

58 

56

54 

51 

50 

49 

50 

49

Apr.

50 

50 

52 

86 

92

72 

65 

60 

56 

271

592 

256 

180 

579 

382

244 

200 

162 

138 

118

128 

192 

132 

108 

. 101

96 

90 

86 

80 

76

Secondfoot-days

562 

620 

4,885

184,521

2,768 

1,668 

1,712 

4,794 

1,332 

356.6 

50.2 

11.2 

11.0

18,770.0

May

73 

68 

67 

63 

61

57 

55 

53 

52 

50

46 

44 

43 

41 

40

38 

38

37 

34 

41

44 

43 

40 

33 

29

28 

25 

23 

23 

22 

21

Maximum

33 

73 

1,360

12,500

175 

107 

105 

592 

73 

21

y

.6 

.6

1,360

June

21 

21 

20 

19 

18

17 

16 

16 

13 

13

14 

14 

15 

15 

14

13 

11 

11 

10 

8.5

8.5 

8 

7.5 

6.5 

4.8

5 

5

5 

3.7 

3.1

Minimum

13 

16

28

13

57 

46 

37 

50 

21 

3.1 

.2 

.3 

.2

.2

July

f2.6

a2.1 

fl.7 

1.2 

.9

.6 

.4 

.4 

.4 

.3

.3 

.2 

.2 

.2 

.3

.3 

.4 

.9 

.3 

.3

.3 

4.2

9 

8.5 

8.5

3.7 

.4 

.4 

.4 

.4 

.4

Aug.

0.4 

.4 

.3 

.3 

.3

.3 

.3 

.3 

.3

.3

.3 

.3 

f.3 

a. 3 

a. 3

a. 3 

a. 3 

a. 3 

a. 3 

.3

.4 

.4 

.4 

.4

.4

.4 

.5 

.5 

.5 

.6 

f.5

Mean

18.1 

20.7 

158

506

89.3 

59.6 

55.2 

160 

43.0 

11.9 

1.62 

.36 

.37

51.4

Sept.

aO.5 

a. 5 

a. 4 

f.4 

.4

.3 

.4 

.4 

.4 

.4

.6 

.5 

.4

.5 

.5

.4 

.4

.4 

.4 

.4

.3 

.3 

.2 

.3 

.3

.2 

.2 

.2 

.2 

.2

Runoff in 

acre feet

1,110 

1,230 

9,690

366,000

5,490 

3,310 

3,400 

9,510 

2,640 

707 

100 

22 

22

37,230

a No gage-height record; discharge Interpolated taking Into account changes In canal flow, 

f Computed on basis of partly estimated gage-height record.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA CLARA RIVER BASIN 117 

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

Location.- Staff gage, lat. 34°27'15", long. 118°55'35", In SEi sec. 1, T. 4 N., R. 20 

W., 4 miles north-northwest of Fillmore. Altitude of gage, about 660 feet.

Records available.- October 1927 to September 1932 (monthly figures only); October 1935 

to September 1939 (annual figures only), October 1939 to March 1940 (monthly figures 

only), and April 1940 to September 1942.

Average discharge.- 12 years (1927-32, 1935-42), 5.51 second-feet.

Extremes.- Maximum daily discharge during year, 16 second-feet Oct. 4; no flow May 21, 22. 

1530-42: Maximum daily discharge, 16 second-feet May 25, 27, 29, 30, 1940, Oct. 4, 

1941; no flow July 29, 1941, May 21, 22, 1942.

Remarks.- Records fair. Staff gage read once dally. Canal diverts water from Sespe 

Creek in SEi sec. 1, T. 4 N., R. 20 W., 1 mile above gaging station on Sespe Creek 

near Fillmore.

Cooperation.- Gage-height record furnished by Flllmore Irrigation Co.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

13

13

15

16

15

15

15

15

15

15

14

14

14

14

14

13

13

13

13

13

14

13

12

12

12

12

6

3.6

3.6

5.5

6.5

Nov.

9.5

11

13

14

14

14

14

14

14

14

14

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

13

7

-

Dec.

6

10

7.5

3.1

3.1

3.1

3.3

3.1

1.8

1.0

1.2

2.0

2.

2.

2.

2.

2.

2.

2.

2.

2.

Z.

2.

2.

2.

2.1

2.0

1.5

1.5

1.5

1.5

Jan.

1.8

1.8

1.8

1.8

1.8

1.8

1.7

1.7

1.6

1.5

.5

.4

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Feb.

 .7

6

6

8

8.5

9.5

8

9

9

2.8

2.5

6

4.4

2.8

2.6

2.2

5.5

5.5

6

7

-

-

-

liar.

7

5.5

7

8

7

5.5

7

8.5

10

11

4.5

4.1

9.5

7

.9

1.5

1.5

1.1

1.8

1.8

1.8

1.5

1.3

1.4

1.8

2.4

2.6

2.5

2.4

2.6

2.6

Apr.

1.8

1.8

2.8

2.6

2.4

2.4

2.8

3.3

3.3

2.7

1.2

1.6

1.8

3.0

1.9

3.5

3.5

3.2

3.3

3.6

4.0

3.7

3.6

3.5

2.8

2.8

3.1

3.1

3.3

3.0

-

May

2.7

2.5

2.5

1.7

3.2

3.1

3.3

3.9

4.4

4.4

9

11

11

11

11

11

11

12

12

3.0

0

0

3.3

10

12

12

13

13

13

15

13

June

14

13

14

13

14

14

14

14

14

13

12

12

10

12

10

10

10

9

9

10

10

10

10

10

12

12

12

12

12

12

-

July

12

12

12

12

12

12

12

12

11

10

10

9.5

10

10

10

9.5

10

10

10

10

9.5

5.5

1.6

1.6

1.6

5.5

.5

Aug.

10

7.5

7

6.5

6.5

6.5

7

7

7

8

7.5

7.5

7

7

7

7.5

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

7.5

Sept.

.5

.5

.5

.5

.5

7

7

6

6

6.5

6.5

6.5

6.5

6

6

6

6

6.5

6.5

6.5

6.5

6.5

-

Month

Water year 1941-42 ......................

Second 

foot-days

124.8

85.4

353

215.5

201.0

2,519.7

Maximum

1.8

9.5

4.0

13

14

12

10

7.5

16

Minimum

3.6

1.1

1.2

9

1.6

6.5

6

0

Mean

12.3

12.9

1.39

4.46

2.85

7.61

11.8

8.93

6.95

6.70

6.90

Runoff in 

acre feet

758

767

163

4,840

86

248

169

468

700

549

427

399

5,000

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract I hour.
Santa Paula Creek near Santa Paula, Calif.

Location.- Water-stage recorder, lat. 34°23'40", long. 119°04'35", near east boundary of 

Ex Mission San Buenaventura Grant, 50 feet upstream from Santa Paula Water Works 

diversion dan and about 3 miles north of Santa Paula, Ventura County. Altitude of 

gage, about 650 feet.

Drainage area.- 39.e square miles.

Records available.- October 1927 to September 1942. April 1912 to September 1913 at site 

 about 2i miles upstream. October 1927 to February 1931 at site 500 feet downstream, 

below diversion of Santa Paula Water Works.

Average discharge.- 15 years (1927-42), 20.9 second-feet.

Extremes.- Maximum discharge during year, 554 second-feet Dec. 29 (gage height, 3.10 

feet); minimum daily, 0.1 second-foot Aug. 19-21, 26-29.

1927-42: Maximum discharge, 13,500 second-feet Mar. 2, 1938 (gage height, 10.56 

feet), by slope-area method; minimum daily, 0.1 second-foot Aug. 19-21, 26-29, 1942.

Remarks.- Records fair. About 595 acre-feet diverted above station for irrigation during 

year; water for municipal use diverted below station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

a8

a8

a8

a8

aS.5

a8.5

a8.5

a8.5

a9

a9

a9.5

all

alO

a9

a8

a7

a6

a6

a6.5

a7.5

a9

a!2

alO

a9

a8

a7.5

a9

fs

8

8

8.5

Nov.

8.5

8.5

8

7.5

7

7

6

6

7

7

7.5

7.5

7

6

6.5

7

7

7

7

7

7

7

6.5

5.5

5.5

5

5

5

9.5

9

-

Dec.

7.5

7.5

8

7

7

6.5

6.5

6.5

10

35

19

15

13

13

12

12

11

10

10

10

10

10

9.5

10

10

10

10

124

206

53

34

Jan.

26

22

20

19

18

18

17

17

16

16

16

16

16

15

15

15

15

14

14

14

14

20

17

15

15

15

15

14

13

13

13

Feb.

13

12

12

12

12

12

12

12

12

11

11

11

10

9

8.5

10

9.5

10

9.5

9

12

12

10

10

10

10

9.5

9

-

-

~

Month

October ....................................

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

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

Calendar year 1941 .....................

January. ...................................

February. ..................................

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

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

May. OV .............................. ........

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

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

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

September ......................... ........

Water year 1941-42 ......................

Mar.

8.5

8.5

8

5.5

6

6.5

7

' 7.5

7.5

7.5

11

9

8.5

19

16

12

10

10

10

9.5

9

9

9

8.5

8.5

8

7.5

8

8

7.5

7.5

Apr.

6.5

7

8.5

13

12

14

11

9

8.5

32

38

27

22

63

41

30

26

22

19

17

20

25

22

19

18

18

17

15

14

14

-

Seoondfoot-days

261.5

207.0

713.0

29,658.0

503

300.0

278.0

608.5

278.5

137.2

96.0

41.1

49.4

3,473.2

May

13

12

12

11

10

10

10

10

9.5

9.5

9.5

9.5

9.5

8.5

8.5

9

8.5

8.5

8

8

9

9

8.5

8

7.5

.5

.5

Maximum

12

9.5

206

1,860

26

13

19

63

13

7

5

2.8

2.5

206

June

6

6.5

7

7

5.5

5.5

6

5.5

5.5

4.6

4.4

5.5

4.6

4.4

4.0

4.0

4.2

4.0

3.8

3.8

3.8

3.6

3.4

3.0

3.4

3.8

4.2

3.6

3.2

3.4

-

Minimum

6

5

6.5

5

13

8.5

5.5

6.5

6.5

3.0

1.6

.1

1.2

.1

July

3.8

3.6

3.6

4.6

5

4.0

3.2

3.0

3.0

4.0

4.2

4.0

4.0

3.2

3.2

3.4

2.8

2.8

2.8

3.0

3.0

2.5

2.3

1.9

2.2

2.7

2.8

2.2

1.8

1.8

1.6

Aug.

1.6

1.6

1.5

1.4

1.5

2.1

2.5

2.7

2.7

2.8

2.2

1.2

1.1

1.9

1.9

1.9

1.4

1.3

.1

.1

.1

1.2

1.1

1.0

1.0

.1

.1

.1

.1

1.4

1.4

Mean

8.44

6.90

23.0

81.3

16.2

10.7

8.97

20.3

8.98

4.57

3.10

1.33

1.65

9.52

Sept.

1.4

1.5

1.4

1.3

1.3

1.3

1.3

1.3

1.4

1.4

1.5

1.2

2.2

1.5

1.6

2.3

2.3

2.5

2.5

1.8

1.9

1.4

1.3

1.4

1.5

1.5

2.1

1.9

1.6

1.8

-

Runoff in 

acre-feet

519

411

1,410

58,820

998

595

551

1,210

552

272

190

82

98

6,890

Peak discharge.- Dec. 28 (12 m.) 384 sec.-ft.; Dec. 29 (5:30 p.m.) 554 sec.-ft.; Apr. 10 (7:30 

p.m.) 102 sec.-ft.; Apr. 14 (9:30 a.m.) 169 sec.-ft.

a No gage-height record; discharge computed on basis of two discharge measurements, recorded range 

in stage, and rainfall records.

f Computed on basis of partly estimated gage-height record.

Time basis; pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
VENTURA RIVER BASIN 11! 

Matilija Creek at Matilija, Calif.

Location.- Water-stage recorder, lat. 34°28'50", long. 119°18'06", in SWi sec. 28, T. 5 

N., R. 23 W., 0.1 mile southeast of Hatilija. Altitude of gage, about 950 feet.

Drainage area.- 55 square miles.

Records available.- October 1927 to September 1942.

Average discharge.- 15 years, 36.1 second-feet.

Extremes.- Maximum discharge during year, 780 second-feet Dec. 28 (gage height, 4.52 

feet); minimum, 1.6 second-feet Sept. 23 (gage height, 2.13 feet).

1927-42: Maximum discharge, 15,900 second-feet Mar. 2, 1938, by slope-area method; 

mir.inun, 0.4 second-foot Oct. 28, 1930.

Remarks.- Records good. No diversions above station.

Cooperation.- Four discharge measurements furnished by Ventura County Water Survey.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

12

12

13

13

14

14

15

15

15

14

14

15

15

14

14

13

13

13

13

14

16

18

17

16

16

16

16

16

15

14

14

Nov.

14

14

14

14

13

13

12

12

12

12

12

12

12

12

12

12

12

12

13

13

13

14

14

13

12

12

12

12

19

19

-

Dec.

14

13

15

15

14

13

12

11

13

36

28

20

18

18

17

16

16

15

14

14

14

14

14

14

14

14

17

351

181

83

58

Jan.

51

43

39

36

35

32

30

29

28

27

27

26

26

24

23

23

22

22

21

20

21

36

29

26

26

24

23

22

22

21

20

Feb.

19

18

18

18

18

18

18

17

17

17

17

16

17

17

17

16

15

15

15

14

21

28

21

19

18

18

18

18

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ................. ..................

February ............... ..................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

17

17

16

15

15

14

14

14

14

14

16

14

14

21

23

21

19

19

18

18

18

18

18

18

17

16

16

15

15

14

14

Apr.

14

14

15

23

18

17

16

15

16

90

77

43

35

151

90

68

60

53

46

43

48

55

44

41

39

38

38

36

16

34

-

Secondfoot-days

449

392

1,106

63,473

854

498

512

1,313

652

333.0

182.0

129.7

112.0

6,532.7

May

32

31

29

28

27

26

26

24

24

24

23

22

22

21

20

20

20

19

18

18

17

17

17

17

17

17

16

16

15

15

14

Maximum

18

19

351

3,480

51

28

23

151

32

14

8

5.5

5

351

June

14

14

14

14

14

13

13

13

13

12

13

13

12

12

12

12

11

10

10

9

8.5 8.5

8.5

8.5

a

8.5

9

9

8.5

B

-

Minimum

12

12

11

11

20

14

14

14

14

8

4.0

3.2

2.7

2.7

July

8

7.5

7.5

8

8

7.5

7

7

6

6

6

6

6

5.5

6

5.5

5.5

6

6

5.5

5.5

5

4.0

4.6

4.3

4,3

4,6

4.6

5

5

4.6

Aug.

4.6

4.6

4.3

4.3

4.6

4.3

4.3

4.0

4.3

5

5.5

5.5

4.3

4.6

4.3

4.0

4.0

4.0

4.0

3.7

3.7

3.4

3.2

3.2

3.7

4.0

3.7

3.7

4.3

4.3

4.3

Mean

14.5

13.1

35.7

174

27.5

17.8

16.5

43.8

21.0

11.1

5.87

4.18

3.73

17.9

Sept.

.6

.6

.6

.6

.3

.0

.4

.0

.3

.5

.7

.4

3.2

3.0

3.2

3.7

4.0

3.4

3.0

3.2

2.7

2.9

3.0

3.0

3.0

3.2

3.4

4.0

-

Runoff in 

acre-feet

891

778

2,190

125,900

1,690

988

1,020

2,600

1,290

660

361

257

222

12,950

Peak discharge.- Dec. 28 (11 a.m.) 780 sec.-ft.; Apr. 14 (8:30 a.m.) 320 sec.-ft. 

Tine basis:Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

time to standard time, subtract 1 hour.
120 VENTURA RIVER BASIN

'Ventura River near Ventura, Calif.

Location.- Water-stage recorder, lat. 34°20'55", long. 119°18'20", in southeast corner 

of Santa Ana Grant, in Foster Memorial Park, at abutment of former highway bridge 

150 feet downstream from present highway bridge, 500 feet downstream from Coyote 

Creek, 3,000 feet downstream from Ventura diversion dam, and 5 miles north of Ventura, 

Ventura County. Altitude of gage, about 210 feet.

Drainage area.- 187 square miles.

Records available.- September 1911 to January 1914, October 1929 to September 1942.

Average discharge.- 15 years (1911-13, 1969-42), 73.9 second-feet.

Extremes.- Maximum discharge during year, 1,190 second-feet Dec. 28 (gage height, 5.12 

feet); minimum daily, 0.3 second-foot Sept. 27.

1911-13, 1929-42: Maximum discharge, 39,200 second-feet Mar. 2, 1938, by slopearea and contracted-opening methods; no flow for periods each year except 1937-39, 

1942.

Remarks.- Records good. Water diverted from Ventura River and tributaries for irrigation 

and municipal supply.

Cooperation.- Three discharge measurements furnished by Ventura County Water Survey.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

j.y 1 Q

20

21

22O'T

*£O

24

25

26

27

OQ&a

29

30

31

Oct.

22

20

20

23

23

20

18

18

20

18

18

20

20

20

18

18

18

16

18

22

23

27-

27

26

26

26

27

26

22

22

22

Nov.

22

22

22

22

20

20

20

20

20

20

20

20

20

20

20

20

20

20

22

23

23

22

22

22

23

23

20

18

23

30

Dec.

27

24

24

27

26

24

24

24

27

65

81

51

45

41

41

38

35

35

54

32

32

30

30

30

32

34

31

545

464

211

131

Jan.

102

86

71

66

61

57

55

50

50

48

46

46

45

45

43

38

38

36

36

34

34

61

61

55

53

48

43

41

41

39

38

Feb.

38

36

36

36

34

34

33

33

33

34

34

31

33

33

31

30

30

30

28

28

34

57

39

38

36

36

34

33

-

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

Januarv. ...... ...... . . ... .

Febr 

Marc

uary ...................................

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

33

31

30

27

27

27

26

26

26

26

31

28

27

52

66

43

36

33

31

31

31

30

30

30

30

30

28

27

24

24

26

Apr.

28

24

24

54

30

33

33

2S

30

104

142

77

57

379

196

138

120

96

80

71

77

90

71

66

61

57

55

53

48

48

~

Secondfoot-days

664

639

2,295

129,895.5

1,567

962 

967

2,350

949

429.0

193.3

105.0

72.4

11,192.7

May

46

43

41

39

39

34

34

36

36

54

34

33

33

33

33

33

33

30

26

23

20

22

24

26

27

27

23

21

21

23

28

Maximum

27

30

545

8,730

102

57 

66

379

46

21

9.5

6

5.5

545

June

21

19

19

19

18

18

17

17

16

15

14

16

16

16

16

17

16

14

12

11

10

10

9.5

9.5

12

12

10

9.5

10

9.5

~

Minimum

16

18

24

8

34

28 

24

24

20

9.5

3.8

 .7

.3

.3

July

S

6.5

6

6

5.5

6

5.5

4.3

3.8

4.8

6

8.5

9.5

8

5.5

4.8

6.5

8.5

9.5

9.5

7

6

6

6

5.5

5.5

4.8

5.5

5.5

5

3.8

Aug.

3.4

3.4

4.8

6

5.5

4.8

4.3

4.8

4.8

4.8

4.8

4.8

4.3

3.8

3.0

2.2

1.6

1.6

1.6

1.6

1.9

.7

1.0

3.4

3.8

3.8

3.0

1.6

2.7

3.4

3.8

Mean

21.4

21.3

74.0

356

50.5

34.4 

31.2

78.3

30.6

14.3

6.24

3.39

?..41

30.7

Sept.

3.4

3.4

4.3

2.7

1.2

.6

.6

.7

3.2

5.5

5.5

3.1

1.6

1.4

3.0

3.8

4.3

4.3

4.3

4.3

4.3

2.0

.6

.4

.4

.4

.3

.7

1.4

.7

"

Runoff in 

acre-feet

1,320

1,270

4,550

257,600

3,110

1,910 

1,920

4,660

1,880

851

383

208

144

22,210

Peak discharge.- Dec. 88 (1 p.m.) 1,190 sec.-ft.; Apr. 14 (10 a.m.) 850 sec.-ft. 

Time teals; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
VENTURA RIVER BASIN i; 

Uorth Fork of tfetillja Creek at Matillja, Calif.

Location.- Water-stage recorder, lat. 34°29'15", long. 119 018 I 20B , in NEi sec. 29, T. 5 

 N., R. 23 W., at highway bridge, half a mile upstream from confluence with Matilija 

Creek and half a mile north of Matllija.

Drainage area.- 15.5 square miles.

Records available.- October 1928 to September 1932, October 1933 to September 1942.

Average discharge.- 13 years (1928-32, 1933-42), 10.6 second-feet.

Extremes.- Maximum daily discharge during year, 130 second-feet Dec. 28; minimum dally, 

0.8 second-foot Sept. 26, 27.

1928-32, 1933-42:' Maximum discharge, 5,580 second-feet Mar. 2, 1938; minimum, 

0.1 second-foot Aug. 27 to Sept. 9, 1929, and July 27 to Aug. 16, 1931.

Cooperation.- Records furnished by Ventura County Water Survey.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6 

7

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.

5

5

5

5

5

5 

4.7

4.7

4.7

4.7

5

5.5

5.5

5.5

5

5

5

5

5.5

5.5

5.5

6

6

6

6

G

6

6

5.5

5.5

5.5

NOY.

5.5

5.5

5.5

5.5

5.5

5 

5

.

.

. f

.'

w «

.

.

G.5

6

-

Dec.

5.5

5

6

5.5

5.5

5 

5

5

G

19

12

7.5

6.5

G

G

C

5.5

5.5

5.5

5

5

5

5

5

6

6

7.5

130

63

26

18

Jan.

15

13

12

11 

10

9.5 

9

8

8

8

7.5

7

7

7

7

6.5

6.5

6

6

6

6.5

16

10

8

7.5

7

7

7

6.5

6.5

6.5

Feb.

6.5

6.5

6.5

6

6

6 

6

6

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

8

9.5

7

6.5

6

6

6

6

-

-

-

Mar.

5.5

5.5

5.5

5.5 

5.5

5.5 

5.5

5.5

5.5

5.5

6.5

5.5

5.5

9

9

8

8

7.5

7

6

6

6

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

Apr.

5.5

5.5

6

9

6.5

6 

6

5.5

5.5

43

22

13

11

63

23

17

15

13

11

11

12

13

11

10

9.5

9.5

9.5

9

8.5

8

-

May

8

8

7.5

7.5

7

6.5

6.5

6.5

6.5

6

6

6

6

6

6

6

5.5

5.5

5.5

5.5

5.5

5

5

5

5

5

5

5

5

June

5

4.7

4.7

4.7

4.4

4.4

4.4

4.4

4.4

4.4

4.1

4.1

3.8

3.8

3.5

3.0

3.3

3.3

3.3

3.3

3.3

2.9

2.9

2.9

2.9

2.7

2.7

2.5

-

July

2.5

2.5

2.3

2.3

2.0

2.0

2.0

1.8

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.4

1.4

1.4

Aug.

1.3

1.3

1.2

1.2

1.2

1.0

1.0

1.2

1.2

1.3

1.3

1.3

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.0

1.0

1.0

1.2

1.3

1.3

1.3

1.3

1.4

Sept.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.

1.3

1.2

1.0

1.0

1.2

1.2

1.2

1.0

1.0

.9

.9

.9

.9

.8

.8

.9

.9

.9

-

Month

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

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

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

Water year 1941-42 ......................

Second 

foot-days

165.3

149.9

409.5

16,063.3

258.5

171.5

189.5

397.5

187.5

113.1

55.0

37.4

34.7

2,169.4

Maximum

6

6.5

130

739

16

9.5

9

63

8

5

2.5

1.4

1.4

130

Minimum

4.7

4.4

5

3.3

6

5.5

5.5

5.5

5

2.5

1.4

1.0

.8

.8

Mean

5.33

5.00

13.2

44.0

8.34

6.12

6.11

13.2

6.05

3.77

1.77

1.21

1.16

5.94

Runoff in 

acre-feet

328

297

812

31,860

513

340

376

788

372

224

1O9

74

69

4,300

Time baala; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert war time to standard tine, subtract 1 hour.

530350 O - 43 - 9
122 VENTURA RIVER BASIN

Coyote Creek near Ventura, Calif.

Location.- Water-stage recorder, lat. 34°21'20", long. 119°18'50", near southeast corner 

of Santa Ana Grant, 200 feet downstream from highway bridge, half a mile upstream 

from Ventura River, and 54 miles northwest of Ventura, Ventura County. Altitude of 

gage, about 240 feet.

Drainage area.- 41.1 square miles.

Records available.- October 1927 to September 1932, October 1933 to September 1942.

Average discharge.- 14 years, 14.8 second-feet.

Extremes.- Maximum discharge during year, 435 second-feet Dec. 28 (gage height, 3.61 

feet); minimum dally, 0.2 second-foot Aug. 9 to Sept. 30.

1927-32, 1933-42: Maxlmtnn discharge, 11,500 second-feet Mar. 2, 1938, by slopearea method; no flow Aug. 19 to Sept. 18, 1929.

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

Cooperation.- Two discharge measurements furnished by Ventura County Water Survey.

Discharge, in second- feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

1.4 

1.5 

1.3 

1.3 

1.6

1.6 

1.7 

1.8

1.7

1.6 

1.8 

1.9 

1.9 

1.8

1.7 

1.6 

1.6 

1.9 

2.2

2.6 

3.0 

3.4 

3.4 

3.0

2.9 

3.4 

3.2 

2.9 

2.6 

2.5

Nov.

2.5 

2.6 

2.6 

2.5 

2.3

2.2

2.2 

2.2

2.1

2.2 

2.2 

2.2 

2.1 

2.1

2.1 

2.1 

2.1 

2.2 

2.3

2.2 

2.2 

2.2 

2.2 

2.0

1.9 

1.8 

1.7 

2.2 

2.9

Dec.

2.6 

2.2 

2.6 

3.4 

3.5

3.5 

3.4 

3.4

18

14 

8 

6 

5.5 

5.5

5.5 

4.7 

4.7 

4.5 

4.3

3.9 

3.9 

3.9 

3.9 

4.3

4.7 

4.5 

157 

124 

63 

31

Jan.

20 

16 

12 10 

9

S.5 

8 

7.5

7

6.5 

6.5 

6 

6 

6

6 

6 

5.5 

5.5 

5.5

6 

13 

11 

8 

8.5

8.5 

7 

6.5 

6 

 

6

Feb.

5.5 

5.5 

5.5 

5.5 

5.5

5 

4.9 

4.9

4.7

4.7 

4.6 

4.6 

4.5 

4.5

4.4 

4.4 

4.3 

4.3 

4.2

6 

13 

7 

6 

5.5

5 

5 

5

Month

Octc 

Neve 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

lendar year 1941 

ary

1. .....................................

st .....................................

ter year 1941-42 ......................

Mar.

4.9

4.8 

4.7 

4.7 

4.5

4.5 

4.1 

3.7 

3.7 

3.7

5.5 

5 

4.3

16 

17

8.5 

7 

6 

5.5 

5

4.7 

4.5 

4.3 

4.3 

4.3

4.1 

3.9 

3.7 

3.7 

3.5 

3.4

Apr.

3.2 

3.0 

3.2 

5.5 

5

4.5 

4.1 

3.7 

3.7 

16

19 

9 

7 

105 

33

19 

16 

12 

11 

9.5

10 

17 

13 

11 

10

10 

9.5 

9 

8.5 

8

Seccndfoot-days

66.5 

66.2 

513.9

25,004.2

251.0 

146.8 

167.5 

398.4 

144.4 

45.2 

14.8 

7.0 

6.0

1,829.7

May

7.5 

7 

6.5 

6 

6

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5 

4.9 

4.9

4.7 

4.7 

4.5 

4.1

3.5

3.4 

3.5 

3.9 

3.9 

3.9

3.5 

3.2 

3.0 

2.9 

2.7 

2.7

June

2.6 

2.6 

2.3 

2.2 

2.1

2.0 

1.9 

1.8 

1.8 

1.8

1.8 

1.8 

.8 

.7 

.8

.7 

.5 

1.4 

1.3 

1.1

.9 

.9 

.9 

.8 

.8

.8 

.8 

.8 

.8 

.8

MaxinuB Minimum

3.4 1.3 

2.9 1.7 

157 2.2

1,820 1.3

20 5.5 

13 4.2 

17 3.4 

105 3.0 

7.5 8.7 

2.6 .8 

.8 .3 

.3 .2 

.2 .2

157 .2

July

O.S 

.7 

.8 

.6 

.6

.6 

.6 

.5 

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4 

.4

.5 

.5

.5 

.4 

.4 

.4 

.4

.4 

.4 

.4 

.4 

.3 

.3

Aug.

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

.2 

.2 

.2 

.2 

.2 

.2

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

if-... Runoff in *ean acre-feet

2.15 132 

2.21 131 

16.6 1,020

68.5 49,590

8.10 498 

5.31 295 

5.40 332 

13.3 790 

4.66 286 

1.51 90 

.48 29 

.23 14 

.20 12

5.01 3,630

Peak discharge.- Dec. 28 (7 p.m.) 435 sec. -ft.; Apr. 14 (9 a.m.) 412 sec. -ft.

Jlcte.- No gage-height record Feb. 9 to Mar. 2, Aug. 1 to Sept. 10; discharge computed on basis of 

four discharge measurements, recorded range in stage, interpolation, and comparison with records for

Ventura River near Ventura.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tine thereafter, 

convert war time to standard time, subtract 1 hour.
CARPINTERIA CREEK BASIN 123

Carpinteria Creel: near .Carplnterla, Calif.

Location.- Water-stage recorder, lat. 34°24'00n , long. 119°19'25", at highway bridge on 

State Route 150, In El Rlncon Grant, 400 feet downstream from Gobernador Creek and 

2.4 miles northeast of Carplnterla, Santa Barbara County. Altitude of gage, about 

150 feet.

Drainage area.- 13.8 square miles.

Records available.- January 1941 to September 1942.

Extreme.!.- Maximum discharge during year, 29 second-feet Dec. 29 (gage height, 2.83 

feet); no flow during several months.

1P41-42: Maximum discharge, 803 second-feet Mar. 3, 1941, maximum gage height, 

5.65 feet Mar. 28, 1941; no flow at times each year.

Remarks.- Records fair. Small periodic lake above station catches runoff from 0.74 

square mile, which is drained past the station by pumping.

Discharge, in second-feet, water year October 1941 to September 1942

Dayj Oct.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

0.1

.1

0

.1

.2

.5

.2

.2

.2

0

.1

.8

.3

0

0

.1

.1

.1

.2

.2

.2

.3

.2

.1

.1

.1

.1

.2

.2

.2

.1

Nov.

0.3

.3

.2

.1

.1

0

.1

.1

.1

.1

.1

.1

0

0

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

.3

.3

-

Dec.

0.1

.1

.7

.5

.4

.3

.3

.2

.2

8

2.0

.9

.9

.8

.9

.8

.8

.7

.6

.5

.5

.5

.5

.5

.5

.5

.5

7

13

6

2.9

Jan.

2.3

1.8

1.2

1.1

.9

.8

.8

.7

.6

.5

.5

.4

.4

.3

.3

.3

.3

.3

.5

.3

.3

1.1

.6

.4

.5

.4

.3

.2

.4

.5

.5

Feb.

0.5

.2

.1

.1

.2

.2

a. 2

a. 2

a 2

a. 2

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

a.l

.1

.4

1.2

.4

.5

.5

.5

.5

.5

_

-

-

Mar.

0.4

.4

.4

.4

.3

.3

.3

.4

.3

.3

.7

.5

.3

4.8

2.7

1.0

.7

.5

.4

.4

.3

.3

.2

.2

.1

.1

.1

.1

.1

.1

.2

Apr.

0.1

.1

.1

.7

.4

.3

.1

.1

.1

3.5

1.2

.6

.5

22

3.6

1.8

1.6

1.2

1.0

.8

1.2

1.6

1.1

.8

.8

.9

.9

.8

.6

.6

-

May

0.8

.7 '.6

.4

.3

.3

.4

.3

.1

.1

.1

.1

.1

0

0

0

0

0

.2

.1

.1

.2

.2

.2

.3

.3

.2

.1

.1

.2

0

June July Aug. Sept.

Month

Water year 1941-42 ......................

' Seoondfoot-days

5.3

2.5

52.1

5,076.4

19.5

7.6

0

159.9

Maximum

.8

.3

13

387

2.3

1.2

4.8

22

0

0

0

0

22

Minimum

0

0

.1

.2

0

0

Mean

0.17

.08

1.68

.63

.27

0

0

.44

Runoff in 

acre feet

10

5.0

103

39

15

34

97

0

0

0

0

316

Peak discharge.- Dec. 10 (2 p.m.) 23 sec.-ft.; Dec. 29 (7:30 a.m.) 29 sec.-ft.

a No gage-height record; discharge computed on basis of interpolation and comparison with records 

of San Jose Creek near CJoleta and Matilija Creek at Matlllja.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

convert war time to standard time, subtract 1 hour.
124 ALASCADERO CREEK BASIN

Alascadero Creek near Goleta, Calif.

Location.- Water-stage recorder, lat. 34°25'25", long. 119°48'40", at highway bridge, 

In La Goleta Grant, a quarter of a mile downstream from Iferla Ygnacio Creek and 1.3 

miles southeast of Goleta, Santa Barbara County. Altitude of gage, about 40 feet 

(from topographic map).

Drainage area.- 18.3 square miles.

Records available.- October 1941 to September 1942.

Extremes.- Maximum discharge during year, 118 second-feet Apr. 14 (gage height, 4.92 

feet), from rating curve extended above 80 second-feet by logarithmic plotting; no 

flow during most of year.

Remarks.- Records fair. Small diversions above station for Irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

I

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

Oct. Nov. Dec.

0

0

0

0

0

0

0

0

0

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

21

16

8

3.3

Jan.

2.3

1.1

.6

.4

.3

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.Z

.2

.1

.1

.2

.1

0

0

0

0

0

Feb.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

o

0

0

0

0

0

.6

.2

.1

.1

.1

.1

0

_

_

-

Mar.

0

0

0

0

0

0

0

0

0

0

.3

.2

.1

3.6

5.5

1.6

.5

.4

.3

.2

.2

.1

.1

0

0

0

0

0

0

0

0

Apr.

0

o

0

.3

.1

0

0

0

0

0

0

0

0

26

3.0

.8

2.6

.8

.4

.3

.4

4.6

1.1

.4

.2

.1

.1

0

0

0

May June July Aug. Sept.

Month

Calendar year ......................

Ma,. .......................................

Water year 1941-42 ......................

Secondfoot-days

0

0

48.6

-

7.3

1.2

13.1

41.2

0

0

0

0

0

111.4

Maximum

00 *

21

-

2.3

.6

5.5

26

0

0

0

0

0

26

Minimum

0

0

0

-

0

0

0

0

0

0

0

0

0

0

Mean

0

0

1.57

-

.24

.04

.42

1.37

0

0

0

0

0

.31

Runoff in 

acre-feet

0

96

-

14

2.4

26

82

0

0

0

0

0

220

Peak discharge.- Dec. 28 (8:30 a.m.) 84 sec.-ft.; Apr. 14 (6 a.m.) 118 sec.-ft. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SAN JOSE CREEK BASIN 125

San Jose Creek near Goleta, Calif.

Location.- Water-stage recorder, lat. 34027'25n , long. 119 048'30", in La Goleta Grant, 

at Patterson Avenue Bridge, 1.1 miles downstream from unnamed tributary and 1.7 

miles north of Goleta. Santa Barbara County. Altitude of gage, about 120 feet 

(from topographic map;.

Drainage area.- 5.54 square miles.

Records available.- January 1941 to September 1943.

Extremes.- Maximum discharge during year, 210 second-feet Apr. 14 (gage height, 3.13 

feet); no flow during several periods.

1941-42: Maximum discharge, 1,960 second-feet Apr. 4, 1941 (gage height, 6.95 

feet), from rating curve extended above 850 second-feet by logarithmic plotting; no 

flow at times during each year.

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

fair. One diversion above station of about 100 acre-feet per year for irrigation and 

and many small diversions.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.4

.4

.4

.4

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.3

.2

.2

.2

.2

.2

.3

.5

.4

.4

.4

.4

.5

.5

.4

.4

.3

Nov.

0.3

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.6

.5

.6

.4

.4

.4

.4

.4

.4

.4

.5

.4

f.4

a. 4

a. 4

a. 4

a. 4

f.9

.8

-

Dec.

0.8

.7

1.2

.9

.7

.6

.6

.6

.7

3.0

1.1

.9

1.0

1.0

1.6

1.2

1.0

.8

.6

.6

.6

.6

.3

.2

.2

.3

.4

54

21

11

7

Jan.

4.9

2.6

1.8

1.6

1.8

1.6

1.4

1.4

1.3

1.2

1.2

1.1

1.1

1.1

1.0

1.0

1.0

.9

.9

.9

1.9

2.0

1.4

1.0

1.4

1.4

1.1

.6

.6

.6

.6

Feb.

0.6

.6

.5

.3

.3

.3

.3

.2

.2

.2

.1

.2

.2

.1

.1

.1

.1

.1

.3

.1

2.4

4.5

1.6

a. 6

a. 3

.2

.1

.1

_

_

-

Mar.

0.1

.1

.7

1.0

.9

.7

.2

.1

.1

.1

1.1

.2

.1

3.7

6.5

1.8

1.0

.7

.5

.3

.3

a. 2

a. 2

a. 2

a.l

a.l

f.l

.1

.1

.1

.1

Apr.

0.1

.1

.2

1.6

 6

2.0

1.3

1.2

1.2

1.6

2.6

1.7

1.8

41

8.5

5

9

4.3

3.2

2.8

2.8

11

4.6

3.2

2.8

2.6

2.2

2.0

1.7

1.6

-

May

1.6

1.3

1.2

1.2

1.1

1.1

1.1

1.0

1.0

1.0

.9

.8

.8

.8

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.5

.5

.4

.3

.3

.3

June

0.4

.3

.4

.4

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.3

.2

.2

0

0

0

1

1

1

1

1

1

2

2

2

2

-

July

0.2

.2

.2

.2

.2

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

0

0

0

.1

.1

.1

.2

.2

.2

.1

Aug.

0.1

.1

0

.1

0

0

0

.1

.1

.1

0

0

0

.1

.2

.1

.1

0

0

0

0

0

0

0

.1

.1

.1.1

.1

.1

.1

Sept.

0.2

.z

.2

."2 .1

.2

.2

.2

.2

.3

.2

.2

.2

.2

.2

.2

f.3

a. 3

a. 2

a.l

a.l

a.l

aO

0

.1

.1

.1

.1

.1

.1

-

Month

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

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

Hay

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

Water jrear 1941-42 ......................

Secondfoot-days

11.8

13.5

115.2

14.7

21.5

4.5

385.7

Maximum

0.5

.9

54

.2

54

Minimum

0.2

.3

.2

0

Mean

0.38

.45

3.72

1.06

Runoff in 

acre feet

23

27

228

247

8.9

765
126 SANTA Y1EZ RIVER BASIN

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

Location.- Water-stage recorder, lat. 34°29'30", long. 119°30'50", in sec. 28, T. 5 N., 

R. 25 W., at Juncal Dam, 8.5 miles northeast of Montecito. Altitude of gage, about 

1,950 feet.

Records available.- December 1950 to September 1941 (monthly discharge), October 1941 to 

September 1942.

Average discharge.- 11 years (1931-42), 8.56 second-feet.

Remarks.- Discharge represents inflow to Jameson Lake and is computed fron reservoir 

records. During year Montecito County Water District diverted 1,030 acre-feet from 

Jameson Lake for municipal supply of city of nonteclto.

Cooperation.- Records furnished by Montecito County Water District.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2.4

2.1

2.1

.3

.7

1.3

1.7

1.5

1.6

1.9

1.6

1.0

1.4

1.0

2.0

1.4

2.2

1.7

1.7

1.6

1.7

1.7

1.5

1.6

1.4

1.5

4.4

4.0

3.9

3.1

3.1

Nov.

3.6

3.4

4.3

4.2

3.1

3.6

3.7

2.7

3.8

3.0

2.5

2.6

2.6

2.5

2.6

3.6

3.3

3.6

3.2

3.0

4.0

3.1

2.6

3.2

1.9

2.6

1.5

2.3

2.7

3.7

-

Dec.

3.1

3.2

2.2

3.9

3.0

3.2

3.3

2.1

2.6

5.5

2.2

4.6

4.2

4.7

4.4

5.5

4.8

5

5

5

5

5

5

5

6

6

5

46

35

10

11

Jan.

7

6

4.8

5

5

4.9

4.9

5

5

5

6

5

5

5

5

3.8

4.1

4.1

2.9

3.2

3.3

.3

3.8

2.9

2.6

2.9

3.0

3.2

3.2

3.1

3.2

Feb.

3.2

3.2

3.1

3.2

3.2

3.2

3.3

3.3

3.3

3.S

3.3

3.8

3.8

2.7

3.2

3.2

3.1

3.3

3.3

3.3

2.4

2.3

5

4.1

4.3

4.2

4.4

4.4

-

-

~

Month

October. ...................................

Novembe r ...................................

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

Calendar year 1941 ......................

January. ............................. .....

Mar.

4.5

4.1

4.3

5.5

5.5

4.6

4.5

4.6

4.5

4.0

2.9

4.1

4.1

1.1

5.5

6

5

5.5

5.5

5.5

5.5

5.5

5.5

5

5.5

4.9

3.7

2.5

2.5

1.8

2.1

Apr.

2.0

2.4

.7

3.6

2.4

2.2

2,8

1.8

1.2

10

8.5

7.5

3.8

40

23

17

14

14

14

14

16

16

15

13

11

8.5-

8.5

9

8.5

8

-

fSay.

59.1

92.5

216.5

11,564.8

127.2

February. ............................... ...j 96.3

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

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

Mav

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

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

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

September . .................................

Water year 1941-42 ......................

135.8

298.4

153.7

38.6

15.0

11.2

10.8

1,255.1

May

7.5

8.5

8

8

7.5

6

8

8

7

7.5

'77.5

7

6.5

4.8

4.6

4.8

4.2

3.8

4.6

3.3

3.4

2.1

2.9

1.4

1.5

1.5

2.3

2.0

1.0

1.5

Maximum

4.4

4.3

46

702

7

5

6

40

8.5

2.4

.9

2.2

1.4

46

June

1.4

2.3

2.4

1.5

.6

1.1

1.5

1.2

1.8

1.4

1.6

2.1

1.6

1.6

1.6

1,6

1.6

1.0

1.0

1.1

1.6

.7

.8

.8

.7

.8

.7

.7

.8

1.0

-

Minimum

0.3

1.5

2.1

.2

.6

2.3

1.1

.7

1.0

.6

.3

.2

.2

.2

July

0.7

.6

.6

.6

.6

.6

.5

.5

.5

.9

.4

.5

.5

.4

.6

.4

.4

.4

.4

.4

.4

.4

.3

.4

.3

.3

.8

.4

.4

.4

.4

Aug.

0.3

.3

.3

.2

.2

.6

.2

.2

.2

.2

.2

.2

.2

.2

1.3

.2

.2

.2

.2

2.2

.8

.2

.5

.2

.2

.2

.3

.2

.2

.3

.3

Mean

1.91

3.08

6.98

31.7

4.10

3.44

4.38

9.95

4.96

1.29

.48

.36

.36

3.44

Sept.

1.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.6

.2

.3

.3

.3

.3

.3

.3

.3

.2

.6

.3

.2

.2

1.0

.3

.3

.3

.2

.2

"

Runoff in 

acre-feet

117

183

429

22,940

252

191

269

592

305

77

30

22

21

2,490

Rote.- Discharge is change in storage plus diversion to city plus 

overflow plus bank storage plus evaporation minus precipitation.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; 

To convert war time to standard time, subtract 1 hour.

release to river plus spillway 

Pacific war time thereafter.
SANTA Y1IEZ RIVER BASIN 127

Santa Ynez River near Santa Barbara, Calif.

Location.- Lat. 34°31'40", long. 119"41'00", about on line between sece. 10 and 11, T. 5 

N., R. 27 W., at Gibraltar Dam, 7 miles north of Santa Barbara. Altitude of gage, 

about 1,200 feet.

Drainage area.- 219 square miles.

Records available.- November 1903 to April 1907, October 1907 to January 1908, February 

1910 to November 1918, April 1920 to September 1942 (monthly discharge only prior to 

October 1941).

Average discharge.- 28 years (1904-6, 1911-14, 1916-17, 1920-42), 57.3 second-feet.

Remarks.- Discharge represents inflow to Gibraltar Reservoir and is computed from reservoir records. Flow regulated by Janeson Lake. During year Hontecito County Water 

District diverted 1,030 acre-feet from Jameson Lake.

Cooperation.- Records computed in cooperation with city of Santa Barbara.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

B

9

10

11

12

13

14

15

16

17

IB

19

20

21

22

23

24

25

26

27

2B

29

30

31

Oct.

4.0

3.0

3.0

3.0

3.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

5

4.0

4.0

4.0

4.0

4.0

4.0

4.0

12

9

S

8

8

9

10

10

9

9

Nov.

8

8

8

8

8

8

7

7

7

7

7

7

7

7

7

7

7

7

7

7

7

8

8

8

8

8

S

8

9

15

Dec.

13

11

13

IS

13

13

11

10

13

54

157

97

40

28

28

31

25

20

14

14

14

13

12

13

14

16

18

269

324

201

138

Jan.

106

87

74

64

5S

51

46

45

41

37

34

32

32

30

28

29

28

29

2S

27

27

7S

101

75

76

131

81

73

66

61

58

Feb.

55

54

52

50

4S

47

45

42

39

37

34

33

33

33

33

33

33

32

30

29

37

75

66

52

46

43

41

40

_

_

-

Mar.

35

34

36

33

28

29

26

23

23

26

32

39

34

48

123

92

82

79

70

74

63

65

54

50

47

44

41

38

37

34

33

Apr.

33

32

32

50

58

64

54

46

39

50

135

98

80

210

205

142

131

117

104

94

89

199

153

121

109

99

93

87

86

83

-

May

80

76

73

6S

61

53

50

47

43

41

38

36

34

32

30

29

27

24

21

18

14

18

23

23

24

25

23

22

20

19

19

June

18

17

16

15

14

13

12

11

10

10

10

9

8

7

6

6

6

5

4.0

4.0

3.0

4.0

3*0

0

1.0

2.0

2.0

3.0

3.0

2.0

-

July

3.0

2.0

2.0

1.0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug. Sept.

Month

Calendar year 1941 .....................

Hay. .......................................

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

September. .................................

Water year 1941-42 ......................

Secondfoot-days

94,354

8

0

10,684

Maximum

5,940

210

18

3.0

0

324

Minimum

3.0

7

3.0

29

32

0

0

0

0

0

Mean

5.6

7.8

259

55.9

42.6

47.2

96.4

35.8

7.5

.3

0

0

29.3

Runoff in 

acre-feet

343

462

3,280

187,100

3,440

2,360

2,900

5,740

2,200

444

16

0

0

21,180

Note.- Discharge is change in storage plus diversion to city plus release to river plus spillway 

overflow plus evaooratlon minus precipitation.

Tjme basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
128 SANTA Y11EZ RIVER BASIN 

Santa Ynez River below Gibraltar Dan, near Santa Barbara, Calif.

Location.- Lat. 34°31'40", long. 119°41'00", about on line between sees. 10 and 11, T. 

5 N., R. 27 W., Just downstream from Gibraltar Dan, 7 miles north of Santa Barbara. 

Altitude of gage, about 1,200 feet.

Records available.- April 1920 to September 1942 (nonthly discharge only prior to October 

1941).

Average discharge.- 22 years, 40.9 second-feet.

Remarks.- Discharge represents flow in Santa Ynez River passing Gibraltar Reservoir. 

Flow regulated by Gibraltar Reservoir and Jameson Lake. During the year, the city of 

Santa Barbara diverted 3,200 acre-feet from Gibraltar Reservoir and Monteolto County 

Water District diverted 1,030 acre-feet from Jameson Lake.

Cooperation.- Records commuted In cooperation with city of Santa Barbara.

Discharge, in second-feet, water year October 1941 to September 194'

Day! Oct.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

1.8

Nov . ! Dec .

1. i.e i.

1.8 1.

1.8' 1.

1.8, 1.

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

1.7

1.

0

0

0

0

0

0

Jan.

114

90

76

66

58

52

1. ' Oi 47

1.

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

0

0

20

150

132

47

29

28

30

26

19

15

12

45

42

38

35

31

30

29

27

27

Feb.

53

52

50

48

47

45

44

41

38

35

32

30

30

30

30

30

27 30

27

27

26

12 26

11 74

1.7 1.8 10] 102

1.7 1.8 10

1.7

1.7

1.8 12

1.8 14

77

72

130

1.7 1.8 17 82

1.7 1.8 221 72

1.7 1.2 352

1.7

1.7

0 227

- 149

66

60

57

29

27

26

33

72

67

50

44

Mar.

33

30

32

31

26

24

23

20

19

21

30

36

32

47

122

92

BO

75

77

71

61

52

50

47

44

40 40

38

36

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ...................................

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

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

May. a v ....................................... 

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

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

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

September. .................................

Water year 1941-42 ......................

38

35

33

31

28

Apr.

28

27

28

47

55

58

51

42

36

47

124

103

81

174

232

147

133

117

103

93

89

178

166

122

109

99

92

86

83

81

-

Secondfoot-days

54.8

50.8

1,543

' 394

1,732

1,127

1,380

2,831

836.3

53.9

18.5

15.5

12.6

9,655.4

May j June

78

74

71

66

55

45

40

38

8.5

7.5

7

5.5

4.5

3.6

2.6

2.0

35 1 1.6

32

29

27

24

22

20

18

17

14

12

9

5

4.3

8

11

12

14

14

12

11

10

9

Maximum

1.8

1.8

352

5,600

130

72

1.5

1.4

1.1

.8

.6

.2

0

0

0

0

0

0

0

.7

.7

.7

.7

.7

.7

.7

.7

-

Minimum

1.7

0

0

0

26

Kfi

122 19

232 27

8.5

:l.5

352

4.3

r\

.4

.5

.4

0

July

0.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.5

.4

.5

.5

.5

..5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Aug.

0.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

Sept.

0.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

-

Mean Runoff in 

acre-feet

1.77 109

1.69 101

49.8 3,060

256 185,200

55.9 3,440

40.2 2,240

44.5 2,740

94.4 5,620

27.0 1,660

1.80 107

.60 37

.50 31

.42 25

26.5 19,170

Note.- Discharge is spillway overflow plus release to river.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tin 

To convert war time to standard time, subtract 1 hour.

thereafter.
SANTA YNEZ «IVER BASIN 129 

Santa Ynez River near S?nta Ynez, Calif.

Location.- Water-stage recorder, lat. 34°35'20", long. 120°01'25", In Canada de los Plnos 

Grant, at San Marcos road bridge, 4 miles southeast of Santa Ynez, Santa Barbara 

County. Altitude of gage, about 500 feet.

Drainage area.- 435 square miles.

Records available.- December 1928 to September 1931, October 1932 to September 1942.

Average discharge.- 12 years (1929-31, 1932-42), 123 second-feet.

Extremes.- Maximum discharge during year, 1,210 second-feet Dec. 28 (gage height, 5.71 

feet); no flow Sept. 16-30.

1929-31. 1932-42: Maximum discharge, 43,700 second-feet Mar. 2, 1938 (gage height, 

17.90 feet), from rating curve extended above float measurement of 34,100 second-feet; 

no flow for several months In most years.

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

Flow regulated by Jameson Lake and Gibraltar Reservoir; water diverted above station 

to cities of Itonteclto and Santa Barbara.

Cooperation.- Two discharge measurements furnished by city of Santa Barbara.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

7

6.5

6.5

6.5

7

7

7

7.5

f7

f7

7

7

7

7

6.5

6.5

6.5

6.5

6.5

6.5

10

12

12

13

13

14

14

14

12

12

Nov.

12

12

11

11

11

10

9.5

8.5

8.5

9

9

9

9

8.5

9

9.5

9.5

9.5

10

10

11

11

11

11

11

10

1C

9.5

9.5

10

-

Dec.

11

11

14

18

17

16

16

15

15

26

44

73

69

57

52

56

51

47

43

40

37

35

32

32

32

34

37

f606

a900

f490

a285

Jan.

a200

a!55

130

114

104

97

90

83

79

76

71

66

63

a60

a58

a56

a54

a52

a50

f4e

50

88

121

100

.117

137

118

104

92

84

78

Feb.

72

70

68

65

63

62

61

59

57

55

53

53

52

52

51

51

49

49

48

47

50

72

77

68

59

54

51

47

_

-

-

Month

October ....................................

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

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

Calendar year 1941 ......................

January ....................................

February. ..................................

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

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

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

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

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

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

September ..................................

Water year 1941-42 ......................

Mar.

45

43

42

41

41

39

37

40

39

38

45

45

44

89

238

152

122

108

101

94

86

79

74

70

68

65

63

59

58

56

54

Apr.

50

46

48

59

63

70

69

63

58

57

83

115

92

216

358

202

173

143

122

106

119

473

313

198

154

137

124

116

109

102

-

Secondfoot-days

269.0

299.5

3,211

241,100.5

2,795

1,615

2,173

4,040

1,514

373.0

91.4

37. 6

5.6

16,424.1

May

97

92

86

80

76

68

63

60

58

56

55

53

50

49

47

45

44

43

40

38

35

33

32

31

28

28

27

26

26

24

24

Maximum

14

12

900

200

200

77

238

473

97

OT SO

5.5

1*8

.6

900

June

23

22

21

20

20

18

18

18

16

15

14

14

13

13

12

11

10

9

8.5

8

8

8

8

7

7

7

6.5

6

6

6

-

Minimum

6.5

8.5

11

48

48

47

37

48

24

6

1 »8

.6

0

0

July

5.5

5

4.9

4.7

4.7

4.4

4.2

3.7

3.5

3.2

3.0

2.8

2.8

2.6

2.6

2.7

2.7

2.6

2.3

2»3

2.3

2.2

2.0

1.8

1.8

1.9

1.9

1.9

1.8

1.8

1.8

Aug.

1.8

1.8

1.8

1.7

1.7

.6

.5

.5

.5

.5

1.4

1.4

1.4

1.3

1.3

1.3

1.2

1.1

1.0

1.0

1.0

.9

.9

.8

.8

.8

.8

.8

.7

.7

.6

Mean

8.68

9.98

104

661

90.2

57.7

70.1

135

48.8

12.4

2*95

1^21

.19

45.0

Sept.

0.6

.6

.5

.5

.5

.4

.4

.4

.4

.4

.3

.2

.2

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Runoff in 

acre-feet

534

594

6,370

478,200

5,540

3,200

4,310

8,010

3,000

740

181

75

11

32,560

Peak discharge.- Dec. 28 (12 m.) 1,210 sec.-ft.; Bar. 15 (4 a.m.) 321 sec.-ft.; Apr. 15 (4 a.m.) 

452 sec.-ft.; Apr. 22 (7 a.m.) 629 sec.-ft.

a No gage-height record; discharge interpolated OP comouted on basis of records fop Santa Cruz 

Creek neap Santa Ynez, and spill over Oibpaltar Dam.

f Comouted on basis of partly estimated gage-height record.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific wap time thereafter. 

To convert war time to standard time, subtract 1 hour.
130 SANTA YNEZ KIVER BASIN

Santa Ynez River near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°38'30", long. 120°25'5011 , near boundary of La 

Mission Vleja De La Purlsima Grant, at highway bridge, li miles east of Lonpoc, Santa 

Barbara County, and 2j miles downstream from Salsipuedes Creek. Datum of gage is 

79.28 feet above moan sea level, datum of 1929 (revised).

Drainage area.- 790 square miles.

Records available.- November 1906 to September 1918 (1909, gage heights only), April 1925 

to September 1942.

Average discharge.- 26 years (1907-8, 1910-18, 1925-42), 235 second-feet.

Extremes.- Maximum discharge during year, 3,8£0 second-feet Dec. 28 (gage height, 10.56 

feet); minimum, 2.4 second-feet Aug. 22 and 26.

1908-18, 1925-42: Maximum discharge, 50,100 second-feet Mar. 3, 1938 (gage height, 

23.10 feet, site and datum then in use), from rating curve extended above float 

measurement of 38,000 second-feet; no flow at times In 1929-31, 1934, 1936, 1937, 1939, 

1940, and 1941.

Maximum dally discharge, estimated at roughly 62,000 second-feet, occurred Jan. 9, 

1907.

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

Flow regulated by Jameson Lake and Gibraltar Reservoir; water diverted above station 

to cities of Monteclto and Santa Barbara, and sone water for irrigation pumped from 

wells along banks of river.

Cooperation.- Thirteen discharge measurements furnished by city of Santa Barbara.

Discharge, in second-feet, water year October 1941 to Septeaber 1942

Day

1

2

3

4

5

6

7

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.

29

29

29

29

29

29

29

27

27

27

27

29

29

29

27

25

25

27

27

31

33

35

35

33

33

33

56

48

42

39

37

Nov.

37

37

39

42

39

42

42

39

39

39

39

37

37

37

37

37

39

39

37

37

37

39

39

37

35

37

39

39

44

44

-

Dec.

44

42

53

56

48

48

46

44

46

51

61

61

69

98

104

92

89

86

86

83

77

74

77

77

74

80

89

1,860

1,310

972

750

Jan.

667

472

348

297

263

231

206

186

176

170

174

166

158

150

150

138

132

132

124

118

124

191

204

204

235

231

226

200

191

186

170

Feb.

150

146

146

142

146

138

132

124

121

118

118

114

110

114

114

114

114

118

110

110

132

174

128

124

114

110

114

101

_

_

-

Hcnth

October. ...................................

Ncveaber . ..................................

Deoenber. ..................................

Calendar year 1941 ......................

January ....................................

February ...................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

98

96

90

96

92

92

92

92

92

92

107

104

92

351

296

a 400

f302

249

217

200

178

178

170

186

150

135

128

118

114

114

107

Apr.

107

101

98

114

107

107

107

110

114

104

101

110

135

272

381

380

297

ii49

208

195

174

287

436

312

249

222

208

200

174

170

-

Seccndfcot-days

984

1,161

6,747

333,616

6,624

3,496

5,111

5,829

2,640

828

232.6

138.9

145.8

33,937.3

May

174

162

146

155

121

114

104

107

104

95

92

92

89

83

80

74

71

74

74

69

61

61

61

59

55

53

50

48

46

44

42

MaxiauB

56

44

1,860

15,800

667

174

596

436

174

42

13

5.5

5.5

1,660

June

42

40

38

36

40

40

38

38

36

33

30

28

30

30

28

26

26

25

25

24

21

20

19

18

18

17

17

16

15

14

-

Miniaum

25

35

42

25

118

101

92

98

42

14

4.4

3.3

4.0

3.5

July

13

15

12

11

11

11

10

10

9

8.5

8.5

8

7.5

6.5

6.5

7

7

7

6.5

6

6

5.5

4.9

4.9

4.9

4.9

4.4

4.4

4.4

4.9

4.4

Aug.

4.4

4.9

5.5

4.9

4.9

4.9

4.9

5.5

4.9

4.9

4.4

4.4

4.4

4.9

4.9

4.9

4.9

4.4

4.0

3.7

3.3

3.3

3.7

4.0

4.4

4.0

4.0

4.4

4.4

4.4

Mean

31.7

38.7

218

914

214

125

165

194

85.2

27.6

7.50

4.48

4.86

93.0

4.4

Sept.

4.4

4.4

4.0

4.0

4.4

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.9

4.4

4.4

4.4

4.9

5.5

5.5

5.5

5.5

5.5

5.5

4.9

-

Runoff in 

acre-feet

1,950

2,300

13,360

661,700

13,140

6,930

10,140

11,560

5,240

1,640

461

276

289

67,310

Peak discharge.- Dec. 28 (6 a.m.) 3,880 sec. -ft.; Mar. 14 (4 p.m.) 1,210 sec. -ft.

a No gage-height record; discharge computed on basis of probable recession curve. 

f Computed on basis of partly estimated gage-height record. 

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert war time to standard time, subtract 1 hour.
131

Santa Ynez River at Pine Canyon, near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°40'15", long. 120°29'40", in southwest portion 

of Mission La Purisima Grant at Dyer Bridge on Pine Canyon road, 2.7 miles northwest 

of Lompoc, Santa Barbara County. Altitude of gage, about 60 feet (from topographic 

map).

Drainage area.- 844 square miles.

Records available.- May 1941 to September 1942.

Extremes.- Maximum discharge during year not determined; minimum daily, 1.8 second-feet

1941-42: Maximum daily discharge, 1,800 second-feet Dec. 28, 1941; minimum daily 

discharge, that of Aug. 26, 27, 1942.

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

Flow regulated by Jameson Lake and Gibralter Reservoir; water diverted above station 

to cities of Montecito and Santa Barbara, and some water for irrigation pumped from 

wells along banks of river.

Cooperation.- Four discharge measurements furnished by city of Santa Barbara.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

31

29

28

27

27

27

28

28

28

28

27

28

28

28

28

27

a 27

a 27

a 28

a31

34

35

35

36

35

36

47

49

44

44

44

Nov.

41

41

42

42

42

42

42

38

38

39

39

39

38

38

39

39

39

39

a38

a38

a38

a38

a38

a38

a38

a38

a 38

a 38

a42

a44

"

Dec.

a47

49

56

60

55

53

51

49

51

55

58

62

68

95

98

92

90

88

85

85

a80

a80

a80

a80

a80

a80

a85

al,800

al,300

al,000

a800

Jan.

a700

a500

a350

a300

a270

a235

a210

f!90

180

175

170

165

160

a!55

a!50

a!40

a!35

a!30

a!25

a!20

a!20

1177

194

191

224

224

224

215

191

180

174

Feb.

156

153

150

145

140

140

138

128

128

124

119

119

115

109

111

119

122

122

119

119

122

177

138

135

133

128

117

115

_

-

-

Month

October ....................................

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

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

Calendar year ......................

January. ...................................

February ................................. .

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

109

106

104

98

94

92

92

89

87

91

102

98

96

324

563

385

280

237

218

200

186

177

109

156

145

138

135

133

128

124

117

Apr.

113

111

104

117

122

124

117

119

117

115

113

115

148

235

340

376

298

259

221

197

197

273

446

356

273

237

221

206

194

183

-

Secondfoot-days

999

1,183

6,811

_

6,674

3,641

5,073

6,047

2,682

803

192.7

77.2

96.5

34,279.4

May

170

158

146

137

128

120

106

100

92

95

92

92

92

89

89

84

82

79

74

67

63

61

58

56

58

56

54

49

47

45

43

Maximum

49

44

1,800

_

700

177

563

446

170

43

13

3.2

4.4

1,800

June

43

41

41.

41

39

39

37

35

34

32

30

28

28

28

28

26

25

23

23

22

20

19

18

16

16

15

14

14

14

14

-

Minimum

27

38

46

_

120

109

87

104

43

14

2.6

1.8

2.6

1.8

July

13

12

11

9

9

8

7.5

7.5

7.5

7.5

7.5

7.5

6.5

6

6

5.5

5.5

5.5

5.5

5.5

5.5

4.4

4.0

4.0

3.6

3.6

3.6

3.2

2.6

2.6

2.6

Aug.

2.6

2.6

3.2

3.2

3.2

2.9

2.9

2.9

3.2

2.9

2.3

2.0

2.0

2.3

2.3

2.6

2.6

2.3

2.3

2.6

2.6

2.3

2.0

2.3

2.9

1.8

1.8

2.0

2.0

2.0

2.6

Mean

32.2

39.4

220

_

215

130

164

202

86.5

26.8

6.22

2.49

3.22

93.9

Sept.

2.6

2.9

3.2

2.9

2.6

2.6

2.9

2.9

2.6

2.6

2.9

3.2

3.2

3.2

3.2

3.2

2.9

2.9

2.6

2.6

3.2

3.6

3.6

4.0

4.4

4.4

4.0

4.4

3.6

3.6

-

Runoff in 

acre-feet

1,980

2,350

13,510

_

13,240

7,220

10,060

11,990

5,320

1,590

382

153

191

67,990

a No gage-height record; discharge computed on basis of records for station near Lompoc. 

f Computed or. basis of partly estimated gage-height record.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter 

To convert war time to standard time, subtract 1 hour.
132 SA1ITA YNEZ RIVER BASIN 

Santa Cruz Creek near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°34'40", long. 119°55'50", In Tequepis Grant, 

half a mile above mouth, about 1 mile north of State Highway 150 (San llarcus Pass 

road), 9i miles southeast of Santa Ynez, Santa Barbara County. Altitude of gage, 

about 650 feet (from topographic map).

Drainage area.- 77.2 square miles.

Records available.- October 1941 to September 1942.

Extremes.- Maximum discharge during year, 472 second-feet Dec. 28 (gage height, 3.96 

feet); minimum daily, 0.7 second-foot Sept. 13-22.

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

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

a3.3

a3.2

a3.2

a3.2

a3.1

a3.1

a3.0

a3.0

a3.0

a2.9

a2.9

a2.8

a2.8

a2.7

a2.7

a2.7

a2.6

a2.6

a2.6

a4.0

a4.3

a6

a5.5

a5.5

a5

a5

a6

f5.5

4.9

4.5

4.3

Nov.

4.3

4.3

4.3

4.2

4.2

4.0

3.8

3.8

3.8

3.8

3.8

3.8

4.0

4.2

4.0

4.0

4.2

4.7

4.9

5

5

f5

a5

a5

a5

a5

a5

a5

a6

7

-

Dec.

6.5

6

8

9.5

f7

a7

a6.5

a6.5

a6.5

16

17

10

9

10

17

15

11

10

9

8.5

8.5

8

8

8.5

8.5

10

9.5

167

159

76

52

Jan.

40

30

26

22

20

19

18

17

16

15

15

14

13

13

12

12

12

12

11

11

11

22

30

19

50

45

30

27

24

22

20

Month

Feb.

20

18

18

18

17

16

16

15

15

14

14

14

14

13

13

13

13

12

12

12

13

20

15

14

13

12

12

12

-

-

-

October. ...................................

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

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

Calendar year ......................

January ....................................

February. ..................................

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

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

Mau ay. .......................................

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

11

11

11

11

11

10

10

10

10

10

12

12

11

32

44

27

29

34

31

25

22

20

18

18

17

16

15

15

14

13

13

Apr.

12

12

13

16

15

16

15

14

14

15

30

20

17

46

36

23

20

21

18

17

19

158

64

46

36

31

29

26

25

23

-

Secondfoot-days

115 . 9

136.1

711.0

648

408

543

847

464

187.7

43.1

29. S

23.8

4,157.4

May

22

21

20

20

18

18

18

17

16

16

17

17

16

16

15

15

14

14

13

12

12

12

12

12

12

12

12

12

12

11

10

Maximum

6

7

167

50

20

44

158

22

10

2.8

1.1

.9

167

June

10

9.5

9.5

9.5

9

8.5

8.5

8

7.5

7

7

7

7

7

6.5

6

6

5.5

5.5

5

4.5

4.2

4.0

3.7

3.7

4.0

4.0

3.7

3.2

3.2

-

Minimum

2.6

3.8

6

11

12

10

12

10

3.2

1.0

.9

.7

.7

July

2.8

2.5

2.1

1.9

fl.9

fl.8

fl.6

fl.5

fl.4

fl.4

1.4

1.4

1.3

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.1

1.0

1.0

1.0

1.0

1.1

1.1

1.1

1.1

1.1

1.1

Aug.

1.1

1.1

1.1

1.0

.9

.9

.9

.9

.9

.9

.9

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

.9

.9

.9

.9

.9

.9

.9

Mean

3.74

4.54

22.9

20.9

14.6

17.5

28.2

15.0

6.26

1.39

.96

.79

11.4

Sept.

0.9

.9

.9

.9

.9

.9

.9

.9

.8

.8

.8

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.8

.8

.8

.8

.8

.8

.8

.8

-

Runoff in 

acre feet

230

270

1,410

1,290

809

1,080

1,680

920

372

85

59

47

8,250
3ANTA YNEZ RIVEH F'ASIN 133

Santa A£.ueda Creek near Santa Ynez, Calif.

Location.- Water-stage recorder, lat. 34°35'40", long. 120°0i'30", in Canada de los pinos 

Grant, at old State highway bridge (now county highway) three-quarters of a mile.upstream from mouth and 3-s miles southeast of Santa Ynez, Santa Barbara County. Altitude of gage, about 520 feet.

Drainage area.- 56.4 square miles.

Records available.- January 1941 to September 1942.

Extremes.- Maximum discharge during year, 327 second-feet Dec. 29 (gage height, 2.63 

feet); minimum daily, 0.1 second-foot many days in July, August, and September.

1941-42: Maximum discharge, 1,580 second-feet liar. 3, 1941 (gage height, 4.60 

feet); minimum daily, 0.1 second-foot many days in July, August, and September 1942.

Remarks.- Records fair except those above 10 second-feet and those for periods of no 

gage-height record, which are poor. Small diversions above station for Irrigation.

Cooperation.- One discharge measurement furnished by city of Santa Barbara.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2.1

2.0

2.0

2.0

1.9

2.0

2.0

2.0

2.0

2.0

2.0

2.1

2.0

2.0

2.0

2.0

1.9

1.8

1.9

2.0

2.2

2.2

2.2

2.2

2.1

2.1

2.4

2.2

2.1

1.9

1.9

Nov.

2.0

1.9

1.8

1.7

1.6

1.7

l.V

1.7

1.7

1.7

1.7

1.7

1.7 

1.6

1.6

1.7

1.8

1.8

1.8

1.8

1.8

1.8

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.6

Dec.

1.6

1.6

2.2

2.1

2.1

2.0

1.9

1.8

1.8

2.0

2.0

1.8

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.8

38

124

34

14

Jan.

9

3.4

2.7

2.0

1.8

1.8

1.7

1.7

1.7

1.5

1.5

1.5

1.7

1.7

1.7

1.7

1.7

1.8

1.8

1.8

16

1.8

1.7

7.5

2.7

2.4

2.4

1.7

1.7

1.5

Feb.

1.4

1.2

1.0

1.3

1.3

1.4

1.4

1.4

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.5

1.5

1.5

1.4

1.4

1.4

-

_

-

Month

October ....................................

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

December. ........................ v ........

Calendar year ......................

January. ...................................

February ...................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

1.4

1.4

1.4

1.3

2.2

1.3

1.3

1.9

fl.2

1.0

1.2

1.0

1.2

20

30

12

6.5

2.9

1.8

1.7

1.5

1.4

1.7

1.3

1.4

1.5

1.3

.9

.9

1.2

1.4

Apr.

1.3

1.3

1.2

}.3

.8

.7

.9

.9

1.0

1.0

1.0

1.0

2.5

1.3

1.3

1.5

1.3

1.2

4.0

33

f51

a5

al.6

fl.2

1.0

1.0

.8

.8

.8

-

Secondfoot-days

63.2

51.3

258.2

85.3

40.0

107.3

122.7

29.3

10.7

5.1

3.3

4.1

780.5

May

0.6

1.0

.8

1.0

1.2

2.1

1.5

.6

2.5

.8

.6

.5

.6 

.8

.6

.8

.8

1.0

1.0

.8

.6

1.0

1.9

1.0

.8

.8

.8

.8

.8

.6

.6

Maximum

2.4

2.0

124

16

1.5

30

51

2.5

.8

.2

.2

.2

124

June

0.8

.8

.8

.6

.6

.5

.5

.4

.4

.4

.4

r.4

.4 

.3

.3

.3

.2

.2

.2

.2

f.2

a .2

a. 2

a. 2

a. 2

f.2

.2

.2

.2

f.2

-

Minimum

1.8

1.6

1.6

1.5

1.0

.9

.7

.5

.2

.1

.1

.1

.1

July

aO.2

a. 2

f.2

.2

.2

.2

.1

.1

.1

.1

.1

.1 

.1

'.2

.2

.2

.2

 2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.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

.2

.2

.1

.1

.1

.1

.1

.1

.1

Mean

2.04

1.71

8.33

2.75

1.43

3.46

4.09

.95

.36

.16

.11

.14

2.14

Sept.

0.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1 

.1

.1

.2

.2

.2

.1

.1

.1

.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

-

Runoff in 

acre-feet

125

102

512

169

79

213

243

58

21

10

6.5

8.1

1,550

Pealc discharge.- Dec. 29 (5 a.m.) 327 see.-ft.; Apr. 21 (11 p.m.) 294 see.-ft.

a No gage-heli^it record; discharge computed on basis of Interpolation and probable shape of discharge recession curve.

f Computed on basis of imrtly estimated gage-height record.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
134 SANTA YNEZ RIVER BASIN 

La Zaca Creek at Buellton, Calif.

Location.- Water-stage recorder, lat. 34°36'35", long. 120°11'15", In San Carlos De 

Jonata Grant at culvert on State Highway 150 In Buellton, Santa Barbara County. 

Altitude of gage, about 340 feet.

Drainage area.- 38.7 square miles.

Records available.- January 1941 to September 1942.

Extremes.- Maximum discharge during year, 44 second-feet Dec. 28 (gage height, 3.39 feet); 

no flow several months.

1941-42: Maximum discharge, 874 second-feet Mar. 3, 1941; maximum gage height, 

6.80 feet Mar. 4, 1941; no flow several months of each year.

Remarks.- Records poor. No diversions above station.

Cooperation.- One discharge measurement and one field estimate of flow furnished by city 

or santa Barbara.

Discharge, in seoond-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec.

0

0

0

0

0

0

0

0

0

fO

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

12

7

2.2

1.5

Jan.

3.7

2.7

.6

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

fO

f2.2

1.1

0

.5

.3

.8

2.4

.7

.3

.1

Feb.

Month

October ....................................

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

Decembe r ...................................

Calendar year ......................

January. ...................................

February. ..................................

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

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

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

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

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

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

September. ..................................

Water year 1941-42 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

ro

aO

aO

a3.0

a4.8

1.9

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

O

0

0

0

0

0

0

0

0

0

0

0

.1

.6

.1

0

0

0

0

0

0

0

-

Secondfoot-days

0

0

22.8

_

15.4

0

9.8

.8

0

0

0

0

0

48.8

Peak discharge.- Dec. 28 (8:30 a.m.) 44 sec. -ft.

May

Maximum

0

0

12

3.7

0

4.8

.6

0

0

0

0

O

12

June

Minimum

C

c

C

c

c

c

c

c

c

c

c

c

c

July Aug. Sept.

Mean Runo" *? 

acre-feet

0 0

0 0

.74 45

_

.50 31

0 O

.33 19

.03 1.6

0 0

0 0

0 0

0 0

0 0

.13 97

a No gage-height record, discharge computed on basis of one discharge measurement, recorded range 

in stage, and rainfall records.

f Computed on the basis of partly estimated gage-height record,

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA YNEZ RIVER BASIN 135

Salslpuedes Creek near Lompoc, Calif.

Location.- Water-stage recorder, lat. 34°34'55", long. 130°24'35", near northern edge of 

San Julian Urant, at highway bridge on Jalama road, Just downstream from El Jaro Creek, 

and 5 miles southeast of Lompoc, Santa Barbara county. Altitude of gage, about 230 

feet (from topographic map).

Drainage area.- 46.6 square miles.

Records available.- February 1941 to September 1943.

Extremes.- Maximum discharge during year, 4,810 second-feet Dec. 28 (gage height, 15.9 

feet); minimum, 1.5 second-feet Sept. 15 (gage height, 2.92 feet).

1941-42: Maximum discharge, 7,190 second-feet Mar. 3, 1941 (gage height, 19.95 

feet); minimum, that of Sept. 15, 1942.

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

fair. Small diversions above station for irrigation.

Cooperation.- Eleven discharge measurements furnished by city of Santa Barbara.

Discharge, in second-feet, water year October 1941 to Septenber 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

1ft

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

a4.3

a4.3

a4.3

a4.3

a4.3

a4.3

a4.2

a4.2

a4.1

a4.0

a4.0

a3.9

a3.S

a3.8

a3.7

a3.6

a3.6

a3.6

a3.S

a4.0

a4.3

a4.5

a4.0

a3.9

aS.S

a3.7

alO

a5

a4.5

a4.2

a4.2

Nov.

a4.3

a4.3

a4.4

a4.4

a4.4

a4.4

a4,4

a4.4

a4.5

a4.5

a4.5

a4.5

a4.5

f4.5

4.3

4.3

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.3

4.3

f4.3

a4.2

4.2

5

5.5

-

Dec.

4.6

4.6

10

7

a6.5

a6

aS.6

aS.5

5

6

6

5

6

7.£

14

8.E

7.E

5.E

5.E

5.5

5

5

5.5

6

6

7

78

1,150

130

70

133

Jan.

110

rs3

43

34

a30

a27

a24

a22

20

19

19

18

18

17

17

17

16

16

16

15

25

31

a 16

a!5

48

a 26

f28

21

19

17

17

Feb.

16

16

15

15

15

15

15

14

14

14

14

13

13

12

12

12

12

12

11

11

42

33

17

15

14

14

13

12

-

-

-

Month

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

Calendar year ......................

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

12

12

12

11

10

11

10

10

10

11

19

12

12

335

110

a40

a30

a25

a22

 20

19

18

17

17

16

16

16

15

15

15

14

Apr.

14

13

17

27

16

15

13

13

13

14

13

12

12

94

a30

f!7

21

15

14

13

17

42

16

13

13

12

12

12

12

12

-

Secondfoot-days

1,727.2

-

S14

431

912

557

262.5

156.1

102.8

77.2

64.8

5,370.5

Peak discharge.- Dec. 28 (4:30 a.m.) 4.810 see. -ft.:

May

11

10

10

10

10

10

10

10

9

9

9

9

8.5

8.5

8.5

8

8

8

7.5

7.5

7

7.5

8

8

8

7.5

7

7

7

7

7

Maxinum

1,150

-

110

42

336

94

11

7

4.0

3.0

2.6

1,150

Mar. 14 (1:

June

7

6.5

6.5

6.5

6.5

6.5

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5

4.9

4.6

4.3

4.3

4.3

4.3

4.6

4.3

4.3

4.3

4.0

3.7

3.7

-

Minimum

4.6

-

15

10

12

3.7

2.8

2.2

1.8

l.S

July

3.7

3.7

a3.7

a3.7

a3.7

a3.7

a3.7

a3.7

3.7

4.0

3.7

3.7

3.5

3.2

3.2

3.2

3.0

3.2

3.2

3.2

3.2

3.2

3.0

3.0

2.S

3.0

3.0

2.8

2.8

2.S

2.8

Aug.

2.8

3.0

3.0

2.8

2.6

2.6

2.4

2.4

2.6

2.S

2.6

2.4

2.4

2.4

2.6

2.6

2.6

2.4

2.4

2.4

2.2

2.2

2.2

2.2

2.2

2.4

2.4

2.4

2.4

2.4

2.4

Mean

55.7

-

29.4

8.47

5.20

3.32

2.49

2.16

14.7

Sept.

2.6

2.6

2.6

2.6

2.6

2.4

2.2

2.2

2.2

2.2

2.2

2.2

2.0

l.S

1.8

1.8

2.0

2.2

2.0

2.0

2.0

2.0

2.0

2.2

2.2

2.2

2.0

2.0

2.0

2.0

-

Runoff in 

acre-feet

3,430

-

1,610

866

1,810

1,100

521

310

204

153

129

10,650

45 p.m.) 1.6SO aec.-ft.

a No gage-height record; discharge Interpolated or computed on basis of eight discharge measurements, probable shape of discharge recession curve, and comparison with records of Santa Ynez River 

at Lompoc.

f Computed on basis of partly estimated gage-height record.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942} Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
136 SAN ANTONIO CREEK BASIN

San Antonio Creek at Harris, Calif.

Location.- Water-stage recorder, lat. 34°45'45", long. 120°25'40", In Los Alamos Grant, 

on downstream side of highway bridge, a quarter of a mile south of Harris, Santa 

Barbara County. Altitude of gage, about 300 feet (from topographic map). Prior to 

May 5, 1942, water-stage recorder at site 0.4 mile downstream. Altitude of gage was 

about 290 feet.

Drainage area.- 101 square miles.

Records available.- January 1941 to September 1942.

Extremes.- Maximum discharge during year, 740 second-feet Dec. 28 (gage height, 7.90 

feet); no flow during several periods.

1941-42: Maximum discharge, 1,880 second-feet Mar. 3, 1941 (gage height, 10.1 

feet), from rating curve extended above 480 second-feet by logarithmic plotting; no 

flow during several periods In 1942.

Remarks.- Records poor. Water pumped from stream and from wells along banks above station for Irrigation. Some Irrigation water wasted Into stream.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

 eO.07

Nov.

 eO.05

-

Dec.

0.1

.1

1.8

1.9

.9

.7

.6

.5

.7

2.5

3.4

1.4

.9

.6

1.6

1.5

1.3

1.1

.9

.8

.6

.6

.5

.6

.7

.9

7.5

238

63

38

61

Jan.

48

f20

f!2

8

6

4.8

4.2

3.9

3.6

3.4

3.3

3.0

2.9

2.8

2.6

2.4

2.2

2.0

1.8

1.6

1.7

2.9

2.6

2.6

6.5

6.5

7

7

5.5

4.8

4.1

Feb.

3.3

3.2

2.8

2.6

2.3

2.1

1.9

1.8

1.5

1.5

1.4

1.4

1.5

1.4

1.4

1.4

1.2

1.2

1.1

1.1

2.9

4.2

1.9

1.4

1.1

.9

.7

.6

-

-

-

Mar.

0.6

.5

.5

.5

.5

.5

.5

.4

.5

.6

3.3

2.2

1.9

15

12

3.2

2.2

1.8

1.6

1.4

1.3

1.3

1.2

1.1

1.1

.9

.8

.7

.6

.5

.5

Apr.

0.5

.4

.6

1.9

1.5

2.2

1.3

1.2

1.1

1.0

.9

.e

.9

2.7

fl.9

a. 7

1.5

.8

.6

.5

4.1

8

2.9

2.3

1.9

1.5

1.4

1.3

1.0

.9

-

May

1.0

.9

.8

f.6

0

.1

0

.1

.1

0

.1

0

0

0

0

.1

.2

.2

0

.1

0

0

0

0

0

0

0

0

0

0

0

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0-

July

0

0

0

0

0

.1.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

.1

Sept.

0.1

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

0

0

0

-

Month

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

MaV

Water year 1941-42 ......................

Secondfoot-days

49.8

48.3

4.3

.1

.4

.3

791.17

Maximum

48

4.2

15

8

1.0

.1

.2

238

Minimum

_

0

0

0

0

0

Mean

1.61

.003

.01

2.17

Runoff in 

acre-feet

99

118

96

8.5

.2

.8

1,570

a No gage-height record; discharge based on measurement, 

e Daily discharge less than 0.1 second-foot.

f Discharge computed on basis of partly estimated gage-height record.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

convert war time to standard time, subtract 1 hour.
SANTA MARIA RIVER BASIN 1 

Cuyama River near Santa Maria, Calif.

Location.- Water-stage recorder, lat. 35°00'50", long. 120°16'45", In Suey Grant at 

highway bridge, 3 miles upstream from Alamos Creek, and 10 miles northeast of Santa 

Maria, Santa Barbara County. Altitude or gage, about 610 feet.

Drainage area.- 912 square miles.

Records available.- December 1929 to September 1942.

Average discharge.- 12 years, 28.5 second-feet.

Extremes.- Maximum discharge during year, 782 second-feet Apr. 22 (gage height, 4.68 

feet); minimum, less than 0.4 second-foot several days.

1929-42: Maximum discharge, 17,300 second-feet Mar. 3, 1938 (gage height, 16.6 

feet) by slope-area method; no flow for long periods In some years.

Remarks.- Records fair. Some water for Irrigation pumped from wells along banks above 

station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

1.5 

1.5 

1.5 

1.5 

1.5

1.3 

1.3 

1.3 

1.3 

1.3

1.3 

1.5 

1.9 

2.1 

2.3

2.3 

2.3 

2.6 

2.6 

3.2

4.6 

9 

12

7 

6

6 

7 

7 

7 

5.5 

5.5

Nov.

5.5 

5.5 

5.5 

5.5 

5.5

a. s

5.5 

5 

5 

5

5 

5 

5.5 

6 

6.5

7 

7 

S 

7 

7

8 

8 

7.5 

7

7

7 

7.5 

8 

10 

11

Dec.

11 

8.5 

16 

19 

13

8.5 

S 

7.5 

8.5 

15

57 

39 

20 

17 

19

17 

16 

14 

14 

14

14 

16 

15 

15 

15

15 

15 

81 

96 

84 

59

Jan.

59 

49 

37 

27 

a25

a24 

23 

22 

22 

a21

a20 

a!9

a IS 

18 

17

16 

16 

16 

16 

15

15 

22 

34 

21 

84

45 

27 

32 

f26 

f25 

23

Feb.

22 

23 

22 

21 

21

a20 

a20 

a!9

alS 

alS

a!7 

16 

16 

16 

16

16 

16 

16 

16 

16

23 

37 

27 

20 

19

19 

17 

16

Month

Octo 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri

Unv

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary

1

ter year 1941-42 ...............

Peak discharge.- D

171 see. -ft.; Apr. 2 

a No gage-height r 

for nearby stations. 

Time basis! Pacif 

To convert war time

530350 O - 43 - 10

Mar.

16 

16 

16 

16 

16

16 

16 

16 

16 

16

21 

20 

16 

42 

146

55 

27 

24 

21 

19

17 

17 

17 

16 

16

14 

14 

14 

13 

13 

13

Apr.

13 

13 

13 

21 

30

28 

17 

a!5 

a!4 

a!4

16 

34 

21 

25 

25

25 

24 

16 

a 16 

a!5

15 

168 

128 

3S 

31

27 

26 

24 

22 

22

May

a22 

a21 

a20 

a!9

alS

17 

15 

14 

13 

13

14 

15 

14 

14 

14

13 

13 

12 

a 12 

all

alO 

a9.5 

a9 

aS. 5 

a8.5

8.5 

S 

8 

7.5 

9 

8.5

Second- « <_ _ foot-days H**1* 

112.7 12 

19S.5 11 

767.0 96

31,901.5 3,000

S34 S4 

543 37 

715 146 

896 168 

399.0 22 

144.6 8.5 

49.0 2.4 

25.4 1.0 

16.7 .7

4,700.9 16S

June

8.5

7.5 

7.5 

7.5 

7.5

6.5 

6.5 

6 

6 

6

6 

6 

5.5 

5 

5

4.S 

4.2 

3.8 

3.6 

3.4

3.2 

3.0 

3.0 

2.8 

2.8

2.8 

2.6 

2.6 

2.6 

2.4

Minimum

1.3 

5 

7.5

1.3

15 

16 

13 

13 

7.5 

2.4 

1.0 

.6 

.5

.5

July

2.4 

2.4 

2.2 

2.2 

2.1

2.1 

1.9 

1.8 

l.S 

1.8

1.8 

1.6 

1.6 

1.6 

1.6

1.6 

1.6 

1.6 

1.5 

1.4

1.3

1.3 

1.2 

1.2 

1.2

1.2 

1.0 

1.0 

1.0 

1.0 

1.0

Aug.

1.0 

1.0 

1.0 

1.0 

1.0

1.0 

1.0 

.9 

.9 

1.0

.9 

.3 

.S 

.3 

.3

.7 

.7 

.7 

.7 

.7

.7 

.7 

.7 

.8 

.9

.3 

.8 

.7 

.6 

.6 

.7

Sept.

0.7 

.7 

.7 

.7 

.6

.6 

.6 

.6 

.6 

 6

.6 

.6 

.6 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

.5 

.5 

.5 

.5 

.5

uoo Runoff in *ean acre-feet

3.64 224 

6.62 394 

24.7 1,520

87.4 63,280

26.9 1,650 

19.4 1,030 

23.1 1,420 

29.9 1,780 

12.9 791 

4.82 2S7 

1.58 97 

.82 50 

.56 33

12.9 9,330

BC. 29 (9:30 p.m.) 152 sec. -ft.; Jan. 25 (1 p.m.) 149 sec. -ft.; Mar. 15 (3 a.m.) 

2 (4:30 p.m.) 782 sec. -ft. 

scord; discharge computed on basis of probable recession curves, and records

Lc standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

to standard time, subtract 1 hour.
138 SANTA MARIA RIVER BASIN

Santa Maria River at Guadalupe, Calif.

Location.- Water-stage recorder, lat. 34°58'25", long. 120°34'15", In Guadalupe Grant 

at State highway bridge half a mile north of Guadalupe, Santa Barbara County. Altitude of gage, about 40 feet.

Drainage area.- 1,763 square mllej.

Records available.- January 1941 to September 1942.

Extremes.- Maximum discharge during year not determined; no flow for several months.

1941-42: Maximum discharge, 14,700 second-feet Mar. 5, 1941 (gage height, 8.00 

feet); no flow during several months of each year.

Remarks.- Records poor. Several small diversions above station for Irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. 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

0

6

22

55

74

Jan.

12

1.7

.3

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.1

.6

1.1

2.0

6

3.8

2.6

2.1

1.5

.8

Feb.

0.4

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

-

Month

October. ...................................

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

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

Calendar year ......................

January ....................................

February. ..................................

March ...

Apri 

Hay

1. .....................................

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

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

Augu 

Sept

St. ....................................

amber. ...... . . .......

Water year 1941-42 ......................

Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

12

5

.4

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

Apr.

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

4.4

1.1

.4

.2

.1

0

0

21

160

70

36

19

11

6

3.3

1.9

~

Secondfoot-days

0

0

157

_

34.7

.7

17.5

334.6 

2.4

0

0

0 

0

546.9

May

1.1

.6

.4

.2

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

0

0

74

_

12

.4

12

160 

1.1

0

0

0

0

160

June

Minimum

0

0

0

.

0

0

0

0

0

0

0

0 

0

0

July Aug.

Mean

0

0

5.06

_

1.12

.02

.56

11.2 

.08

0

0

0 

0

1.50

Sept.

Runoff in 

acre- feet

0

0

311

_

69

1.4

35

664 

4.8

0

0

0 

0

1,090

Note.- Gage-height record for season unsatisfactory; dally discharge computed on basis of nine 

discharge measurements and records for Guyana River near Santa Maria, Huttsna River near Santa Maria, 

and Sisquoc River near Gary.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SANTA MARIA RIVER BASIN 139

Huasna River near Santa Maria, Calif.

Location.- Water-stage recorder, lat. 35°01'20", long. 120°19'20", In Suey Grant, half 

a mile upstream from Cuyama River and 8 miles northeast of Santa Maria, Santa Barbara 

County. Altitude of gage, about 600 feet.

Drainage area.- 119 square miles.

Records available.- December 1929 to September 1942.

Average discharge.- 12 years (1930-42), 26.2 second-feet.

Extremes.- Maximum discharge during year, 701 second-feet Dec. 28 (gage height, 3.43 

feet); minimum, 0.6 second-foot Sept. 23 (gage height, 1.75 feet).

1929-42: Maximum discharge, 11,400 second-feet Feb. 11, 1938 (gage height, 11.25 

feet), by slope-area method; no flow during parts of several years.

Remarks.- Records fair. No diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

£28

29

30

31

Oct.

1.6

1.6

1.4

1.6

1.8

1.8

1.8

1.8

1.8

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.8

2.1

2.8

3.1

2.1

2.1

1.8

1.8 

3.3

2.6

2.1

2.1

2.1

Nov.

2.1

2.1

2.1

2.1

1.8

1.8

1.8

1.8

1.8

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

2.8

2.8

-

Dec.

2.3

2.3

4.7

3.6

2.8

2.6

2.6

2.3

2.3

2.8

2.6

2.3

3.1

3.3

6.5

6

4.7

3.9

3.9

3.9

3.6

3.6

3.6

3.6

3.9

3.9 

4.4

336

229

237

156

Jan.

106

72

55

a43

a35

a30

a25

a22

a20

a!8

a!6

al5

al4

a!3

a!3

al2

a!2

all

all

all

all

a!2

a!2

a!2

f86

81

61

a48

a40

a36

35

Feb.

30

31

40

35

33

43

70

58

51

48

f40

a36

a32

a29

a27

a25

a23

f21

20

19

25

33

27

24

21

20 

17

16

-

-

-

Mar.

15

15

15

14

14

14

13

12

13

13

21

26

24

40

128

73

56

49

43

36

33

29

27

25

23

22

20

17

a!7

a!7

a!6

Apr.

f!6

16

16

22

28

41

37

33

30

35

37

34

31

81

92

73

75

62

55

48

45

51

44

37

35

31 

30

29

27

26

-

May

25

23

20

19

17

16

16

16

15

15

15

15

13

13

13

13

12

11

11

10

9.5

8.5

8

8.5

8.5

8.5 

8

8

8

7.5

7.5

June

7.5

7.5

7

f7

7

7

d7

d6.5

6.5

6.5

6

5.5

5.5

4.9

a4.5

a4.5

a4.1

4.1

4.1

3.7

4.1

3.7

3.7

3.7

3.7

3.7 

a3.7

a3.4

a3.4

a3.4

-

July

a3.4

a3.4

a3.4

a3.1

aS.l

a2.8

a2.8

a2.8

a2.5

2.5

2.5

2.2

2.0

2.0

2.0

2.2

2.2

2.2

2.0

d2.0

dl.7

dl.7

dl.7

1.7

1.7

.7 

.7

.7

.5

.5

.7

Aug.

1.7

1.7

1.5

dl.5

dl.5

1.3

1.3

1.1

1.1

1.5

1.3

1.3

dl.3

dl.3

dl.3

dl.3

dl.3

dl.3

dl.3

dl.3

dl.l

dl.l

dl.l

dl.3

dl.3

1.3 

1.3

1.3

1.3

dl.5

1.7

Sept.

1.5

1.5

1.5

1.5

1.5

1.5

1.3

1.3

1.3

1.3

1.5

1.5

1.3

1.1

1.0

1.0

1.1

1.5

1.5

1.5

1.3

1.1

1.0

1.3

1.3

1.5

1.3

1.3

1.3

1.0

-

Month

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

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

Water year 1941-42 ... ..................

Secondfoot-days

59.4

62.9

1,053.1

35,423.6

988

894

880

1,217

398.5

152.9

69.4

41.5

39.6

5,856.3

Maximum

3.3

2.8

336

2,290

106

70

128

92

25

7.5

3.4

1.7

1.5

336

Minimum

1.4

1.8

2.3

1.4

11

16

12

16

7.5

3.4

1.5

1.1

1.0

1.0

Mean

1.92

2.10

34.0

97.1

31.9

31.9

28.4

40.6

12.9

5.10

2.24

1.34

1.32

16.0

Runoff in 

aore-feet

118

125

2,090

70,260

1,960

1,770

1,750

2,410

790

303

138

82

79

11,620

Peak discharge.- Dec. 28 (8s30 a.m.) 701 sec.-ft.; Dec. 29 (11:3C _._., _.. ._.. ..., _._. _. 

(3 p.m.) 318 sec.-ft.

a No gage-height record; discharge computed on basis of four discharge measurements, rainfall 

records, and probable shape of discharge recession curve.

d Gage height doubtful; discharge computed on basis of probable recession curve and records for 

Cuyama River near Santa Maria.

f Computed on basis of partly estimated gage heights.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.

.) 279 30
140 SANTA MARIA RIVER BASIN 

Sisquoc River near Gary, Calif.

Location.- Water-stage recorder, lat. 34°51'40", long. 120°15'45", In Iffii sec. 17, T. 9 

N., R. 32 W-, hair a mile downstream from Tepusquet Creek, and 3s miles southeast of 

Gary. Altitude of gage, about 450 feet.

Drainage area.- 442 square miles.

Records available.- February 1941 to September 1942.

Extremes.- Maximum discharge during: year, 875 second-feet Apr. 22 (ga£e height, 4.85 

feet); no flow during several months.

1941-42: Maximum discharge, 4,340 second-feet Mar. 5, 1941 (gage height, 7.70 

feet), from rating curve extended above 1,400 second-feet by logarithmic plotting; 

no flow during several months of each year.

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

Diversion by Sisquoc Ranch above station for Irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. 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

0

a230

f417

216

172

Jan.

167

117

85

66

51

42

33

E7

24

21

19

17

16

14

13

14

14

13

12

12

12

32

101

68

103

172

112

104

85

71

59

Feb.

50

43

42

40

37

36

33

31

30

26

26

24

23

22

21

19

18

17

17

17

20

27

31

26

25

21

18

17

-

-

-

Mar.

16

14

14

13

12

11

11

10

10

10

16

18

17

36

143

121

97

85

79

73

64

57

50

43

40

34

31

28

25

23

21

Apr.

21

21

21

27

37

40

37

32

30

31

66

64

53

68

117

79

76

68

59

53

55

512

260

148

108

88

79

71

64

59

-

May

55

51

46

42

39

36

34

33

31

28

28

28

26

24

22

21

19

18

15

13

12

12

12

12

12

12

11

9

8

6.5

6

June

5

4.1

3.5

2.6

2.3

1.5

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

July Aug. Sept.

Month

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

Calendar year ......................

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

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

Water year 1941-42 ......................

Secondfoot-days

1,035

-

1,696

0

0

7,894.5

Maximum

417

-

172

50

143

0

0

512

Minimum

0

0

0

-

12

17

10

6

0

0

0

0

0

Mean

0

0

33.4

-

54.7

27.0

39.4

81.5

23.3

.63

0

0

21.6

Runoff in 

acre- feet

0

0

2,050

-

3,360

1,500

2,420

1,430

38

0

0

0

15,650

Peak discharge.- Dec. 29 (3 p.m.) 490 aec.-ft.; Apr. E2 (12 u.) 875 sec.-ft.

a No gage-height record; discharge computed on basis of record of initial rise and high-water 

ark in well.

f Comouted on basis of oartly estimated gage-height record.

lime basis;- Pacific standard time orlor to 2 a.m., Feb. 9, 1942; Pacific war tine thereafter, 

o convert war time to standard time, subtract 1 hour.
ARROYO GHAIJDE BASIN 14: 

Arroyo Grande at Arroyo Grande, Calif.

Location.- Water-stage recorder and concrete broad-crested weir control, lat. 35°07'25", 

long. 120"34'20", In Pismo Grant, at Arroyo Grande, San Luls Oblspo County, a quarter 

of a mile upstream from Pacific Coast Railway bridge. Altitude of gage, about 100 

feet.

Dralnagje area.- 106 square miles.

Records available.- December 1939 to September 1942.

Extremes.- Maximum discharge during year, 850 second-feet Dec. 28 (gage height, 4.27 

feet); minimum, 4.6 second-foot Oct. 6 (gage height, 0.42 foot).

1939-42: Maximum discharge, 3,800 second-feet Mar. 4, 1941 (gage height, 8.80 

feet); minimum, about 0.1 second-foot July 31, 1940.

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

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

14

12

11

12

13

12

10

9.5

11

12

13

14

13

13

14

14

12

12

13

13

14

14

13

13

13

13

15

14

14

14

13

Nov.

13

13

13

13

12

11

11

12

12

13

14

13

13

13

12

12

13

12

13

14

13

13

13

11

12

12

11

12

15

14

Dec.

14

14

18

15

14

14

14

14

15

15

51

15

16

16

20

19

17

17

17

17

17

17

18

18

19

20

54

485

307

217

157

Jan.

117

82

67

56

51

46

42

39

36

35

34

32

31

30

29

29

28

27

27

27

28

28

26

26

200

119

87

76

63

57

53

Feb.

49

54

54

50

50

54

61

56

54

50

46

44

42

40

39

38

36

34

34

33

36

45

37

36

34

32

31

29

_

_

-

Mar.

29

28

28

28

28

28

28

28

28

28

46

44

38

95

162

91

71

62

55

50

46

43

41

39

37

36

34

34

33

32

32

Apr.

32

52

36

49

48

69

56

49

46

59

58

51

50

137

108

88

93

77

68

63

64

62

56

51

50

49

46

48

45

42

-

May

41

38

37

35

34

34

33

33

32

31

30

28

28

27

28

28

26

24

23

21

20

21

22

22

24

26

23

23

22

22

22

June

21

21

20

20

21

20

23

22

21

21

21

19

20

20

18

17

15

f!4

14

13

12

14

13

13

13

14

15

15

14

14

-

July

14

13

13

15

13

13

12

12

10

11

11

11

11

11

11

11

11

11

14

13

12

11

11

11

11

12

11

11

11

12

11

Aug.

all

a!2

alO

alO

a9.5

9.5

9.5

9

11

11

10

10

10

10

10

11

10

9.5

9.5

10

9.5

9.5

12

11

11

8.5

8.5

9

9.5

11

11

Sept.

12

11

11

12

10

11

11

10

10

11

11

11

10

11

11

12

12

12

12

12

11

11

12

11

11

11

12

11

12

10

-

Month

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

Water year 1941-42 ......................

Secondfoot-days

10,819.5

Maximum

12

485

Minimum

8.5

8.5

Mean

12.8

11.8

10.1

29.6

Runoff in 

acre-feet

788

70,109

1,030

724

621

21,460

Peak discharge.- Dec. 28 (6 850 sec.-ft.; De 29 (9 465 sec. -ft. 25 (11

412 sec.-ft.

a No gage-height record; discharge interpolated on basis of engineers' notea.

f Computed on basis of partly estimated gage-height record.

Time basis: Pacific standard time nrior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
42 SALINAS RIVER BASIN

Salinas River near Pozo, Calif.

Location.- Water-stage recorder and concrete control, lat. 35°18', long. 1EO°E4', In 

 b^l sec. 18, T. 30 S., R. 15 S., 1.5 miles downstream from Pozo Creek, 1.7 miles

west of Pozo and 7 miles upstream from Salinas Dam. Altitude of gage, about 1,350

feet (from topographic map).

Drainage area.- 72.5 square miles.

Records available.- July to September 1942.

Extremes.- Minimum discharge during period, 0.4 second-foot Aug. 15.

Remarks.- Records fair. No regulation above station. Water is stored in Salinas 

Reservoir below station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec. Jan. Feb.

Month

October ....................................

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

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

Calendar year ......................

January ....................................

February ....... ...........................

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

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

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

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

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

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

September. .................................

The period. ............. .................

Time basis: Pacific war time. To convert

Mar. Apr.

Secondfoot-days

_

_

_

_

_

_

59.6

43.9

40.3

-

war time tc

May

Maximum

_

.

_

_

_

2 . 2

i!v

1.7

-

June

Minimum

_

_

_

_

_

1.7

1.1

1.1

-

July

£.£

2.0

£.0

1.9

£.£

£.2

£.0

£.0

1.9

2.0

1.9

£.0

£.0

1.9

2.0

£.£

1.9

2.0

2.0

2.0

1.9

1.9

1.7

1.7

1.7

1.7

.7

.9

.7

.7

.7

Aug.

1.7

1.7

1.5

1.5

1.5

1.5

1.4

1.4

1.5

1.7

1.5

1.2

1.2

1.1

1.1

1.1

1.4

1.2

1.1

1.2

1.4

1.4

1.4

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.7

Mean

_

_

_

_

_

1.92

1.42

1.34

-

Sept.

1.7

1.7

1.5

1.5

1.5

1.4

1.4

1.4

1.4

1.4

1.4

1.2

1.2

1.1

1.1

1.1

1.4

1.5

1.4

1.2

1.2

1.2

1.2

1.2

1.4

1.1

1.2

1.5

1.4

1.4

~

Runoff in 

acre-feet

_

_

_

_

_

_

118

87

80

285

standard time, subtract 1 hour.
SAUNAS RIVER BASIN 143

Salinas Reservoir near Pozo, Calif.

Location.- Water-stage recorder, lat. 35°20', long. 1EO°30', in sec. 5, T. 30 S., R. 14 E., 

at dam on Salinas River, 2 miles upstream from Pilitas Creek and 7.5 miles no»thwest 

of Pozo. Datum of gage is at mean sea level (levels by Corps of Engineers, U. S. 

Army).

Drainage area.- Ill square miles.

Records available.- December 194-1 to September 1942.

Extremes.- Maximum contents during period, 17,590 acre-feet June 9-15 (elevation, 1,288.82 

feet).

Remarks.- Reservoir is formed by concrete arch dam; outlet closed on Dec. 6, 1941. Usable 

capacity, 43,200 acre-feet between elevations 1,220.3 feet (bottom of outlet pipe) and 

1,319.0 feet (top of drum-type spillway gates) 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 for water supply; considerable water released down natural channel of 

river also. Records show usable contents at midnight.

Capacity table (elevation, In feet, and contents, in acre-feet) 

(Prepared by 0. 3. Oeological Survsy from curve furnished by Corps of Engineers, U. S. Army)

1,220.3 0

1,221 30

1,223 110

1,225 210

1,228 390

1,232 650

1,236

1,240

1,245

1,250

1,255

1,260

970

1,400

2,100

3,000

4,100

5,400

1,265

1,270

1,275

1,280

1,285

1,290

6,900

8,650

10,650

12,850

15,300

18,300

1,301 26,000

1,310 33,700

1,319 43,200

Contents, in acre-feet, of Salinaa Reservoir near POZD , Calif, 

for the period ending September 30, 1942

Day

1

Z

3

4

5

6

7

Q

9

10

11

12

x*>

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec.

_

..

_

_

-

_

_

_

_

-

.

_

_

_

-

_

_

_

_

-

_

_

_

_

-

100

1,280

2,490

3,200

3,550

3,820

Jan.

4,000

4,100

4,170

4,220

4,270

4,320

4,370

4,420

4,440

4,470

4,470

4,500

4,500

4,520

4,570

4,600

4,650

4,680

4,700

4,730

4,760

4,780

5,040

5,610

5,970

6,180

6,360

6,480

6,540

6,660

6,720

Feb.

6,810

6,900

6,940

6,970

7,110

7,390

7,500

7,560

7,670

7,810

7,B40

7,800

7,950

8,060

8,090

8,160

8,160

8,120

8,090

8,120

8,300

8,400

8,480

8,510

8,510

8,540

8,580

8,620

_

_

-

Mar.

8,650

-

-

-

-

_

_

_

8,820

8,870

8,970

9,070

9,130

9,890

10,500

10,830

11,060

11,230

11,350

11,450

11,530

11,600

11,660

11,710

11,760

11,810

11,850

11, 880

11,930

11,960

11,990

Apr.

12, 030

12,050

12,140

12, 260

12,440

12,710

12,850

12,940

13,030

13,230

13,420

13,540

13,700

-

_

-

.

-

-

_

_

_

-

-

_

~

-

_

16,950

-

May

16,990

17,030

17,080

17,110

17,140

17,170

17,190

17,220

17, 240

17,260

17,290

17,300

17,320

17,340

17,360

17,380

17,400

17,410

17,420

17,440

17,440

17,450

17,460

17,470

17,490

17,490

17,500

17,510

17,510

17,520

17,530

June

17,530

17,530

17,570

17,580

17,580

17,580

17,580

17,580

17,590

17,590

17,590

17,590

17,590

17,590

17,590

17,580

17, 580

17, 570

17,560

17,560

17,550

17,540

17,540

17,530

17,520

17,510

17,500

17,500

17,500

17,490

-

July

17,480

17,480

17,470

17,460

17,450

17,450

17,440

17,420

17,410

17,390

17,370

17,360

17,340

17,330

17,310

17,300

17,290

17,270

17,260

17,240

17,230

17,220

17,200

17,190

17,180

17,160

17,140

17,120

17,100

17,080

17,060

Aug.

17,050

17,030

17,010

17,000

16,990

16,960

16,950

16,930

16,920

16,910

16,900

16,880

16,870

16,850

16,840

16,830

16,810

16,790

16,780

16,630

16,290

15,940

15,590

15,240

15,180

15,170

15,160

15,150

15,140

15,130

15,120

Sept.

15,120

15,100

15,100

15,000

14,690

14,380

14,080

13,950

13,940

13,940

13,920

13,920

13,910

13,900

13,900

13, 890

13,880

13, 880

13, 860

13,860

13,760

13,430

13,110

12,830

12,550

12,260

11,940

11,460

10,830

10,240

~

Monthly elevation and contents, period ending September 1942

Date

Elevation 

(feet)t

1 269 9

1 £87 94

Contents 

(acre-feet)

Change in contents 

during month 

(acre-feet)

t Elevation at midnight.

Note.- Record Dec. 26 to Mar. 1 based on constructed graph furnished by Corps 

of Engineers, U. S. Array.
144 SALINAS RIVER BASIN

Sallnas River above Pllltas Creek, near Santa Margarlta, Calif.

Location.- Water-stage recorder and concrete control, lat. 35°21', long. 120°31', In 

 NEi sete. 6, T. 30 S., R. 14 E., immediately upstream from Pllltas Creek and 6 miles

southeast of Santa Margarlta. Altitude of gage, about 1,190 feet (from topographic

map).

Drainage area.- 125 square miles.

Records available.- July to October 1942.

Remarks.- Records fair. Flow regulated at Sallnas Reservoir. (See p. 143 .)

Discharge, in second-feet, July to October 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Z2

23

24

25

26

27

28

29

30

31

July

_

-

_

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

-

-

_

-

-

_

-

_

-

2.6

2.6

2.6

2.6

Aug.

2.6

2.6

2.6

2.6

2.6

2.6

2.3

2.0

2,6

2.6

2.3

2.0

2.0

2.0

2.0

2.0

2.0

2.0

2.0

60

160

160

160

160

35

4.3

3.8

3.4

3.4

3.4

3.4

Sept.

3.8

3.8

3.8

15

155

155

155

90

1.2

.6

.3

.3

.3

.3

.5

2.0

2.3

2.6

3.2

2.9

32

160

166

158

149

152

166

213

312

300

-

Oct.

300

300

300

300

300

144

3.6

2.9

2.3

2.3

2.6

2.3

2.3

2.3

2.0

2.0

2.0

2.0

1.8

1.8

1.8

46

175

255

229

171

217

213

209

155

110

Month

The period. ........

Secondfoot-days

10.4 

800.1 

2,405.9 

3,458.0

-

Maximum

2.6

160 

312 

300

-

Minimum

2.6 

2.0 

.3 

1.8

-

Mean

2.60

25.8 

80.2 

112

-

Runoff in 

acre feet

21 

1,590 

4,770 

6,860

13,240

Note.- Doubtful or no gage-height record Aug. 20-25, Sept. 4-8, 11-15; discharge computed on basis 

of partial record and eight discharge measurements.

Time basis; Pacific war time. To convert war time to standard time, subtract 1 hour.
SAUNAS RIVER BASIN 145

Sallnas River near Santa Margarlta, Calif.

Location.- Vfoter-stage recorder, lat. 35°24'20", long. 120°34'05", in Ni sec. 15, T. 29 

S., R. 13 5., 250 feet downstream.from Calf Canyon highway bridge, 250 feet upstream 

from Morano Creek, and 2i miles northeast of Santa Margarlta. Datum of gage Is 

959.65 feet above mean sea level (leve'ls by Corps of Engineers, U. S. Army).

Drainage area.- 148 square miles.

Records available.- April to September 1922, February 1932 to September 1942.

Average discharge.- 10 years (1932-42), 55.3 second-feet.

Extremes.- Maximum discharge during year, 1,940 second-feet Dec. 29 (gage height, 9.3 

feet); minimum, 0.3 second-foot Oct. 3.

1932-42: Maximum discharge, 11,000 second-feet Feb. 11, 1938 (gage height, 17.0 

feet), from rating curve extended above 3,000 second-feet on basis of velocity-area 

studies; no flow during several months of each year except 1942.

Remarks.- Records fair prior to Aug. 20 and good thereafter except those above 25 

second-feet which are poor. Flow regulated by Salinas Reservoir (p. 143 ) and some 

water diverted to Camp San Luis Oblspo.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.8

.5

.4

.5

.5

1.2

1.7

1.7

1.7

1.7

1.5

1.9

1.7

1.7

.9

1.5

1.2

1.5

2.8

3.3

5.5

5.5

4.5

3.9

3.9

3.9

5

4.2

3.9

3.9

3.3

Nov.

3.6

3.9

3.9

3.6

3.0

2.8

2.5

2.1

2.3

2.1

3.3

2.8

2.5

2.5

2.5

2.8

2.5

2.3

2.1

1.7

1.7

1.7

1.5

1.5

1.3

1.2

1.2

3.6

6.5

4.8

-

Dec.

4.5

4.2

6.5

6.0

4.8

4.2

2.5

1.6

1.7

1.7

1.6

1.5

1.6

1.9

5.5

3.2

2.5

1.6

1.4

1.4

1.3

1.2

1.4

1.4

1.2

1.3

29

322

580

74

33

Jan.

22

15

13

10

9.5

8/5

8

7.5

7

7

6.5

6.5

6.5

6.5

6.5

6

6

6

6

5.5

5.5

7

6.5

6

224

34

24

20

16

14

13

Feb.

13

16

14

12

13

15

14

12

12

11

11

10

10

P. 5

8.5

8.5

8.5

8

7.5

7.5

9

15

9.5

9

9

8.5

8

7.5

_

_

-

Mar.

7.5

7.5

7.5

7

6.5

6.5

6.5

6

6

6

13

9

S

221

125

36

26

22

19

17

15

14

14

1<4

13

13

13

12

12

12

11

Apr.

11

10

12

20

20

44

20

17

16

34

26

22

20

206

56

42

65

36

28

26

26

26

20

18

19

18

17

16

14

14

-

May

14

14

12

11

10

10

9.5

10

9

8.5

8.5

S

S

7.5

7

6

5

4.3

3.8

3.4

3.4

3.1

3.1

2.9

3.6

3.1

2.2

2.2

2.0

1.8

1.8

June

1.7

1.7 '1.6

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.5

1.5

1.4

1.5

1.4

1.4

1.4

1.5

1.5

1.5

1.5

1.4

1.4

1.2

1.3

1.2

1.2

1.2

1.2

-

July

1.1

1.1

1.2

1.2

1.3

1.3

1.5

2.2

2.4

2.5

2.5

2.7

2.7

2.9

3.1

3.1

3.1

3.1

2.9

2.9

2.9

2.7

2.4

2.4

2.5

2.4

2.7

2.9

2.9

2.7

2.7

Aug.

2.7

2.7

2.4

2.2

2.4

2.2

2.0

1.9

2.2

2.7

2.4

2.0

2.0

2.0

2.0

2.0

2.2

2.2

2.2

6.5

146

164

166

158

74

9.5

5

3.2

2.8

2.5

2.6

Sept.

3.2

3.2

3.2

12

156

164

166

102

4.5

2.5

1.9

1.6

1.2

1.0

.8

1.2

3.2

3.7

3.9

3.9

6

152

176

172

160

160

180

225

334

320

-

Month

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

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

Water year 1941-42 ......................

Secondfoot-days

79.8

1,105.7

65,006.9

7,345,5

Maximum

5.5

580

4,330

580

Minimum

0.4

1.2

1.2

0

1.8

1.9

.4

Mean

2.46

2.66

35.7

178

6.41

20.1

Runoff in 

acre- feet

151

158

2,190

128,900

588

394

5,010

14,560

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert war time to standard time, subtract 1 hour.
146 SALINAS RIVER BASIN

Sallnas River at Paso Robles, Calif.

Location.- Wire-weight gage, lat. 35°37'40", long. 120°41'05", at bridge on State

Highway No. 41 In Paso Robles, about 34 miles upstream from Huerhuero Creek. Datum 

of gage is 670.61 feet above mean sea level (levels by Corps of Engineers, U. S. 

Army).

Drainage area.- 389 square miles.

Records available.- October 1939 to September 1942.

Extremes.- Maximum discharge during year, 6,700 second-feet Jan. 25 (gage height, 12.3 

feet); no flow Oct. 1-18, July 10 to Aug. 25, Aug. 29 to Sept. 6.

1939-42: Maximum discharge 9,870 second-feet Mar. 5, 1941 (gage height, 13.65 

feet), from rating curve extended above 6,500 second-feet; no flow during several 

months In each year.

Maximum stage known, 16.9 feet during flood of Feb. 10-13, 1938.

Remarks.- Records fair except those for Dec. 15 to Jan. 24, which are poor. Gage read 

twice dally with additional readings during periods of high water. Small diversions 

above_gage. Flow regulated by Sallnas Reservoir. (See p. 143.)

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.8

.8

4.1

3.4

3.4

3.8

3.8

4.1

6

5

4.4

4.4

4.4

Nov.

4.4

4.4

4.1

4.1

4.4

4.7

4.4

4.4

4.4

4.7

4.7

5

5.5

5.5

6

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

7

7

7

7

7

8

-

Dec.

8

8

8

S

7.5

7.5

9.5

9.5

10

10

10

10

10

10

899

210

210

160

45

34

23

23

17

16

16

16

29

1,960

3,220

1,250

686

Jan.

450

298

170

160

150

142

127

112

104

80

80

72

66

64

64

62

62

62

58

52

50

50

50

50

3,030

1,350

710

555

443

338

298

Feb.

274

262

292

240

240

324

485

366

338

268

230

220

215

215

215

215

215

180

142

135

131

131

131

127

116

116

105

94

_

-

-

Mar.

79

79

79

75

75

75

69

69

63

63

90

127

97

10S

1,400

520

385

325

265

220

202

193

180

167

163

147

128

121

107

94

94

Apr.

87

81

81

121

202

385

292

206

193

298

450

298

260

796

710

520

513

506

404

355

298

281

265

255

225

175

175

167

143

128

-

May

128

128

128

128

128

128

110

94

90

90

90

78

71

66

63

58

5S

53

50

46

43

42

39

36

36

42

42

36

36

27

27

June

26

25

24

23

23

22

20

20

19

17

17

17

16

15

15

14

12

11

9.5

8

7

7

6.5

6.5

4.5

3.9

3.6

3.6

3.6

3.6

-

July

2.7

l.S

1.5

1.5

1.5

1.3

.7

.2

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Aug.

0

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

15

3.1

0

0

0

Sept.

0

0

0

0

0

0

87

100

63

25

16

11

7.5

4.2

3.3

3.0

3.0

2.7

2.7

1.8

1.8

l.S

6

60

87

97

100

US

167

260

-

Month

Water year 1941-42 ......................

Secondfoot-days

43,164.2

Maximum

128

26

2.7

3,220

Minimum

0

94

81

27

3.6

0

0

0

0

Mean

302

215

296

70.7

13.4

.37

1.91

41.0

118

Runoff in 

acre- feet

342,000

11,940

11,620

17,590

4,350

800

23

117

2,440

85,610

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SALINAS RIVER BASIN 14' 

Salinas River near Spreckels, Calif.

Location.- Water-stage recorder, lat. 36°37'50", long. 121°40'40", in El Toro Grant, at 

bridge on Salinas-Monterey highway, half a mile upstream from Toro Creek, 2 niles 

west of Spreckels, Honterey County, and 4 miles south of Salinas. Datum of gage is 

22.64 feet above mean sea level, adjustment of 1912.

Drainage area.- 4,231 square miles.

Records available.- January 1900 to August 1901, December 1929 to September 1942.

Average discharge.- 12 years (1930-42), 717 second-feet.

Extremes.- Maximum discharge during year, 30,000 second-feet Jan. 26 (gage height, 16.0 

feet, from floodmarks); minimum observed, 3.8 second-feet Aug. 12, 13, 15.

1929-42: Maximum discharge, about 75,000 second-feet Feb. 12, 1938 (gage height, 

25.0 feet), from rating curve extended above 25,800 second-feet on basis of velocityarea studies, verified by slope-area determination; no flow at times during period 

1929-40.

Maximum stage known, 26.6 feet Mar. 7, 1911, as indicated at oil pumping station 

opposite gage (discharge not determined).

Remarks.- Records fair except those for Dec. 16 to Jan. 25, which are poor. Small 

diversions above station for irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

6

6

6.5

7

7

7

8

8.5

8.5

8.5

9.5

9.5

9.5

9.5

9.5

9.5

9.5

10

10

11

14

13

12

13

13

12

15

14

13

13

13

Nov.

13

15

14

14

15

14

15

16

16

15

16

17

17

18

18

19

19

18

18

18

18

18

18

18

18

18

19

18

19

19

-

Dec.

19

19

21

19

19

18

18

18

18

18

18

19

19

24

22

1,920

3,120

2,400

1,700

1,060

660

455

415

357

318

304

311

980

8,470

7,900

5,140

Jan.

3,600

2,760

2,050

1,600

1,270

1,110

1,030

1,040

948

856

746

672

606

546

505

460

425

396

365

349

325

370

510

630

8,450

18,000

7,600

5,300

4,250

3,300

2,820

Feb.

2,580

2,510

2,430

2,470

2,610

2,750

3,380

3,980

2,900

2,400

2,070

1.780

1,540

1,370

1,190

1,000

928

886

802

753

774

816

802

816

910

902

830

760

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February ............................. .....

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

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

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

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

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

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

September. ................... .............

Water year 1941-42 ......................

Mar.

704

718

704

654

630

606

570

522

500

490

540

760

1,000

1,520

2,260

4,410

3,800

2,820

2,340

1,880

1,600

1,450

1,280

1,160

1,040

973

919

838

910

919

928

Apr.

878

846

886

870

1,760

3,060

3,380

2,900

2,250

1,920

1,950

2,080

2,080

1,820

2,360

3,710

2,900

2,360

2,420

2,080

1,870

1,710

1,510

1,400

1,300

1,280

1,230

1,100

1,070

970

-

Secondfoot-days

315.5

508

35,799

899,414.3

72,891

46,939

39,445

55,950

14,677

2,013

241.5

138.0

207.5

269,124.5

May

940

860

824

860

930

860

770

714

658

596

582

P27

488

453

442

415

390

370

342

312

284

257

241

215

215

207

212

189

177

175

172

Maximum

15

19

8,470

40,100

18,000

3,980

4,410

3,710

940

163

12

5

9

18,000

June

163

148

144

132

128

123

110

102

97

91

81

74

69

61

58

54

49

45

39

35

32

29

26

24

21

19

16

15

14

14

-

Minimum

6

13

18

4.0

325

753

490

846

172

14

5

3.8

5.5

3.8

July

12

12

11

11

10

10

10

9

8.5

8.5

8.5

7.5

7.5

7.5

7.5

7

7

7

7

7.5

7

7

6.5

6

6

6

6

5.5

5

5.5

5

Aug.

5

4.5

4.8

4.0

4.2

4.2

4.0

4.2

4.0

4.2

4.2

3.8

3.8

4.0

3.8

4.5

4.5

4.5

4.5

4.5

4.5

4.5

4.8

5

5

4.8

4.8

4.8

4.8

4.8

5

Sept.

6

5.5

5.5

5.5

5.5

5.5 6'

6

6

6

6

6

6.5

7

7

7

7

7

7.5

7.5

8.5

8.5

9

8.5

8

8

8

8

7.5

7.5

~

Mean Runo " i ? 

acre-feet

10.2 626

16.9 1,010

1,155 71,010

2,464 1,784,000

2,351 144,600

1,676 93,100

1,272 78,240

1,865 111,000

473 29,110

67.1 3,990

7.79 479

4.45 274

6.92 412

737 533,900

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.
148 SALINAS RIVER BASIN

llaclmlento River near San Miguel, Calif.

Location.- Water-stage recorder and concrete control, lat. 35°47'00", long. 120°47'24",

In SEt sec. 4, T. 25 S., R. 11 E., about 4 miles upstream from mouth and 5.5 nlles

northwest of San Miguel. Datum of gage, 555.48 feet above mean sea level (levels

by Corps of Engineers, U. S. Army). 

Drainage area.- 354 square miles. 

Records available.- October 1939 to September 1942. 

Extremes.- Maximum discharge during year, 40,200 second-feet Jan. 25 (gage height, 9.15

feet), from rating curve extended above 17,000 second-feet on basis of slope-area

computation; minimum not determined.

1939-42: Maximum discharge, that of Jan. 25, 1942; no flow for several months in

each year except possibly 1942.

Flood of February 1938 reached a stage of 9.2 feet, from floodmarks (discharge,

41,000 second-feet, by slope-area method). 

Remarks.- Records fair. No ijirge diversions.

Jan. 25 to Aug. 23

Rating tables, water year 1941-42 (gage helgl

-0.

-.

_,

-.

_,

0

,60

.50

, 4O

,25

,15

.15

.20

,25

,30

0,

1.

3.

5.

12

24

Dec,

2

3

5

7

e

0

2

6

. 7 to

0.35

.40

.50

.60

.70

.80

.90

1.0

1.2

1.4

Jan. 24

37

52

S7

130

185

245

315

395

570

790

1.6

1.8

2.0

2.5

3.0

3.5

4.0

4.5

1,050

1,330

1,630

2,460

3,400

4,460

5,620

7,000

0.00

.1

.15

.2

.25

.3

.4

.5

.6

.8

1.0

1.2

0.2

.6

2.2

7.0

15

27

54

94

144

267

422

620

1.5

1.8

2.1

2.4

2.7

3.2

S.5

4.0

5.0

6.0

7.0

985

1,420

1,920

2,450

3,000

3,950

4,550

5,600

8,600

13,200

18,700

Discharge, in second-fset, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

 0.6

Nov.

' 0.3

-

Dec.

0.2

3.1

6.5

6.5

7.5

6.5

6.5

6.5

662

5,620

1,930

1,390

507

287

197

146

113

100

96

87

126

1,660

7,350

5,700

2,780

1,770

Jan.

1,270

842

602

472

587

315

280

252

221

197

180

163

141

130

121

113

108

104

96

91

87

196

331

650

16,800

3,330

2,060

1,660

1,170

890

790

653

986

1,170

802

1,180

2,220

2,160

1,340

1,010

814

686

588

515

459

414

382

357

326

304

282

274

319

274

248

229

209

197

185

_

_

-

174

162

156

144

139

134

134

124

119

119

678

877

459

2,700

3,840

1,550

1,070

778

631

515

431

382

349

326

304

274

248

235

216

203

185

179

174

162

676

1,440

2,070

1,080

754

620

754

864

599

515

2,270

1,320

931

1,080

890

742

642

568

506

450

390

357

326

304

304

289

261

-

261

261

235

222

203

197

185

174

168

162

162

156

144

144

139

139

134

124

119

114

109

99

94

90

86

94

104

90

82

78

74

70

62

58

54

51

49

46

46

43

40

38

35

32

32

30

30

27

24

22

22

20

20

17

17

15

13

13

13

12

12

-

10

10

10

8.5

8.5

7

6

6

4.8

4.8

3.8

3.8

2.9

2.9

2.2

2.2

1.7

1.7

1.7

1.7

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

.9

.9

.9

0.9

.9

.9

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.5

.4

.4

.4

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Sept.

 0.2

-

Month

Uay

Water year 1941-42 ......................

Secondfoot-days

9.0

127,937.3

Maximum

16,800

Minimum

87

.2

-

Mean

0.6

.3

986

1,098

570

717

351

Runoff in 

acre-feet

37

18

67,540

35,020

42,680

1,910

30

253,800

Peak discharge.- Dec. 15 (3 a.m.) 10,400 sec.-ft.; Dec. 28 (11 p.m.) 12,400 sec.-ft.; Jan. 25 

(4 a.m.) 40,200 sec.-ft.

Note.- Qa^e-height record doubtful Oct. 1 to Dec. 6 and Aug. 24 to Sept. 30; discharge computed 

on basis of five discharge measurements.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SALINAS RIVER BASIN 14£ 

San Antonio River at Pleyto, Calif.

Location.- Water-stage recorder, lat. 35°51'55 n , long. 120°59'30", In Pleyto Grant, at 

highway bridge at old town site of Pleyto, Monterey County, 1.1 miles downstream from 

Copperhead Creek and 15 miles west of Bradley. Altitude of gage, about 720 feet 

(from topographic map).

Drainage area.- 282 square miles.

Records available.- April to September 1922, December 1929 to September 1942.

Average discharge.- 12 years (1930-42) 116 second-feet.

Extremes.- Maximum discharge during year, 9,800 second-feet Jan. 25 (gage height, 5.42 

feet ), from rating curve extended above 8,000 second-feet; minimum not determined.

1929-42: Maximum discharge, 11,400 second-feet Feb. 11, 1941 (gage height, 5.58 

feet); no flow for several months each year except possibly 1942.

Remarks.- Records fair except those above 1,000 second-feet which are poor. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

0.4

.3

.2

.3

.4

.'5

1.0

.8

.7

.8

.8

.8

a. 8

.9

.9

.9

.9

Nov.

1.0

1.0

1.0

1.0

1.0

1.1

1.0

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

1.2

1.1

1.1

1.5

1.5

Dec.

5.5

12

21

24

33

30

27

24

22

21

17

16

16

26

650

400

375

215

172

140

120

98

88

82

76

76

147

942

1,160

688

502

Jan.

412

325

275

230

210

184

172

168

152

132

117

120

117

104

88

88

91

82

85

76

76

85

172

339

3,790

1,250

850

672

558

447

430

Feb.

376

403

425

348

348

522

600

458

392

320

299

299

262

248

224

197

180

193

189

176

180

201

176

157

149

142

127

107

_

_

-

Month

October. ...................................

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

December

Calendar year 1941 ......................

January ....................................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

97

95

100

110

100

100

97

90

79

90

153

210

161

235

862

470

375

338

330

302

289

280

262

236

223

205

205

184

167

163

154

Apr.

167

154

154

236

470

592

440

380

325

352

356

325

289

420

375

334

320

338

348

316

280

271

262

232

232

214

210

223

205

192

-

Seccndfoot-days

17.0

33.5

6,225.5

138,496.7

11,897

7,698

6,760

9,012

3,478

804.5

108.5

12.4

12.0

46,058.4

May

184

188

175

175

171

158

146

142

130

126

126

114

118

114

lie

110

103

103

96

86

69

67

69

72

75

86

86

82

78

61

50

MaxinuB

1.0

1.5

1,160

6,570

3,790

600

862

592

188

58

_

-

3,790

June

45

53

58

50

43

43

47

45

43

36

34

32

29

25

25

24

21

21

14

17

14

12

12

10

10

9

8.5

8

8

8

~

Minima

0.2

1.0

5.5

.2

76

107

79

154

50

8

_

-

-

July

' 3.5

Aug.

' 0.4

Mean

0.55

1.12

201

379

384

275

218

300

112

26.8

3.5

.4

.4

126

Sept.

' 0.4

-

Runoff in 

acre-feet

34

66

12,350

274,700

23,600

15,270

13,410

17,880

6,900

1,600

215

25

24

91,370

Peak discharge.- Dec. 15 (7 to 8 a.m.) 818 sec.-ft.; Dec. 28 (10 p.m.) 1,390 sec.-ft.; Jan. 25 

(4 a.m.) 9,800 sec.-ft.; Mar. 15 (3 a.m.) 1,270 sec.-ft.; Apr. 6 (6 a.m.) 700 see.-ft.

a No gage-height record; discharge Interpolated.

Note.- Doubtful gage-height record June 28 to Sept. 30; discharge computed on basis of four discharge measurements and trend indicated by gage-height record.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
150 SALINAS RIVER BASIN 

San Lorenzo Creek near King City, Calif.

Location.- Staff gage, lat. 36°15'35", long. 121°01'05", in SEi sec. 20, T. 19 S., R. 9 

E., 7 miles northeast of King city and about 11 nlles upstream from mouth. Altitude 

of gage, about 600 feet (from topogra;hic nap).

DrainaRe area.- 215 square miles.

Records available.- December 1939 to September 1942 (discontinued).

Extremes.- Maximum discharge during year, 3,160 second-feet Jan. 24 or 25 (gage height, 

7.4 feet, from floodnarks); minimum not determined.

1939-42: Maxinum discharge, 6,500 second-feet Apr. 4, 1941 (gage height, 11.5 

feet, from floodmarks), from rating curve extended above 3,300 second-feet; minimum 

observed, 0.6 second-foot July 4-6, 1940.

The peak stage of 1941 is believed to have exceeded that of February 1938 and all 

others in recent years.

Remarks.- Records poor. Gage read once daily with additional readings in periods of high 

water. Small diversion above station for irrigation.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

>

 d6

Nov.

> d7

-

Dec.

10

8

8

11

11

9

9

9

12

11

9

8.5

12

22

72

32

26

17

12

11

11

11

17

17

14

18

42

862

589

120

95

Jan.

95

92

86

75

65

55

45

35

35

30

50

25

25

20

20

20

15

15

15

15

20

30

40

400

902

99

36

33

17

16

14

Feb.

17

18

17

16

88

73

68

41

24

18

18

17

17

17

16

16

16

16

16

14

14

24

19

17

17

16

16

16

_

.

-

Mar.

14

14

14

14

14

13

13

13

13

13

31

21

18

49

76

36

27

23

21

20

20

17

13

11

10

10

10

9.5

9.5

P. 5

9.5

Apr.

9.5

9.5

9.5

32

68

279

52

32

27

577

229

110

93

688

250

128

295

168

93

63

51

46

a 44

a42

39

a39

a39

39

a44

a 48

-

May

51

a 48

44

a41

a 38

35

a33

a31

aS9

a27

a25

a23

a21

19

a!8

16

a!4

a!2

alO

8

a8

a9

9

a9

alO

alO

10

alO

alO

10

alO

June

a9

a9

8

a8

aS

7.5

a7

a6

5.5

a5.5

a5.5

a5.5

5.5

a5.5

a6

a6

6

6.5

a6

5

a5

a5

a5

5

a5

a5

5

a5

a5

a5

-

July

\

> d4.5

Aug.

> d4.5

Sept.

> d5.5

-

Month

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

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

Water year 1941-42 ......................

Secondfoot-days

2,115.5

1 *^Q R

11,116.0

Maximum

862

9

-

902

Minimum

8

9 5

-

Mean

68.2

6.03

30.5

Runoff in 

acre-feet

4,200

1,290

22,060

a No gage-height record; discharge interpolated.

d Gage-height record doubtful; discharge computed on basis of discharge measurements.

Mote.- No gage-height record Jan. 4-23; discharge computed on basis of record for San Antonio 

River at Pleyto.

Time basis; Pacific standard time nrior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SALINAS RIVER BASIN 151

Arroyo Seco near Soledad, Calif.

Location.- Water-stage recorder, lat. 36°16'50", long. 121°19'20", In sec. 16, T.19 3., 

R. 6 E., Is miles downstream from Vaquero Creek and 10 miles south of Soledad. Datum 

of gage Is 344.20 feet above mean sea level (Corps of Engineers, U.S. Army, bench mark). 

Prior to Nov. 12, 1941, recorder at site 1 mile upstream. Altitude of gage was about 

370 feet (from topographic map).

Drainage area.- 241 square miles.

Records available.- November 1901 to September 1942.

Average discharge.- 40 years (1902-42), 185 second-feet.

Extremes.r Maximum discharge during year, 14,100 second-feet Jan. 24 (gage height, 11.10 

feet); minimum, 7.5 second-feet Sept. 16.

1901-42: Maximum discharge observed, about 22,000 second-feet Feb. 21, 1917, and 

Nov. 25, 1926 (gage height, 16.5 feet, site and datum then in use), from rating curve 

extended above 7,500 second-feet; no flow at tines during several years.

Remarks.- Records good February to July, fair remainder of year. No large diversions 

above station.

Discharge, in second-feet, water year October 1941 to Septembsrl942

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

16

15

14

15

16

16

17

17

17

16

16

16

16

16

16

15

15

14

14

16

19

26

24

22

22

22

33

35

24

22

20

Nov.

19

19

18

19

19

18

16

16

16

16

16

hi 4

h!5

hi 5

h!5

h!6

hi 5

hi 6

h!6

alo

h!6

h!8

a!8

h!8

hl8

h22

h21

h22

h27

h24

Dec.

h23

h24

h!63

102

62

49

43

38

37

35

35

35

43

562

1,220

917

523

267

183

144

124

105

100

109

100

151

942

1,820

1,930

1,180

865

Jan.

663

490

398

336

290

256

235

212

19S

1S1

170

159

151

142

134

128

124

118

113

107

109

352

373

3,650

4,070-

1,650

1,380

1,140

910

763

652

Feb.

562

626

557

507

775

1,210

1,050

811

679

596

520

470

427

3S4

364

339

324

304

287

272

274

298

257

247

240

226

216

207

_

_

-

Mar.

198

192

188

184

175

169

162

158

154

158

547

354

293

956

1,120

706

567

494

443

398

364

342

324

310

293

277

264

254

245

235

228

Apr.

226

214

226

836

1,590

1,370-

943

745

641

679

576

511

486

1,120

775

701

728

647

586

538

503

466

435

405

380

361

348

348

327

310

-

May

330

296

280

267

257

247

240

233

226

218

226

216

205

201

198

192

184

. 177

169

162

156

152

151

149

156

184

154

147

144

140

135

June

132

130

127

122

117

116

114

111

106

105

102

99

96

94

89

87

83

80

77

75

72

74

75

70

70

70

69

68

64

62

-

July

58

54

52

50

50

49

45

43

42

40

38

37

37

39

38

36

38

37

36

34

33

31

28

25

23

23

23

23

23

23

22

Aug.

21

20

20

18

17

16

16

15

13

13

15

15

13

12

12

12

12

12

11

11

10

10

11

11

11

12

12

12

12

13

13

Sept.

14

14

15

15

15

13

12

12

11

11

12

11

10

9

8

8

8

8

9

9.5

10

8.5

8

8

8

8.5

8.5

8

8.5

9.5

-

Month

Deoembe r ...................................

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

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

Hater year 1941-42 ......................

Peak discharge.- Dec. 16 (3:30 p.m.) 2,100

(9:30 p.m.) 14.100 sec. -ft.; Feb. 6 (1 p.m.)

Secondfcot-days

11,931

85,322.0

sec. -ft.; D

2,150 380.-

Maximua

1,930

4,070

eo. 27 (6 p

ft.; Mar. 1

Minimum

23

107

154

62

8

.m.) 3,390

4 (7:30 p.m

Mean

385

520

634

466

347

601

200

91.9

36.5

10.3

234

sec. -ft.; J

.) 2,760 se

Runoff in 

acre-feet

23,660

376,700

38,980

25,860

21,330

35,740

12,280

5,470

2,240

835

615

169,200

an. 24

c.-ft. ;

Apr. 5 (1 p.m.) 2,100 sec.-ft.

a No gage-height record; discharge Interpolated

h Computed from staff-gage readings.

Note.- Incomplete gage-height record Aug. 16 to Sept. 2; discharge computed on basis of range of 

stage and comparison with other Salinas River Basin streams.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
52 PAJARO RIVER BASIN

Pajaro River near Chlttenden, Calif.

Location.- Wire-weight gage, lat. 36°54'00", long. 121°35'50", at State highway bridge 

0.6 mile downstream from Pescadero Creek, 1 mile southeast of Chittenden, and 2.5 

miles downstream from San Benito River. Datum of gage, 82.06 feet above mean sea 

level (levels by Corps of Engineers, U. S. Army).

Drainage area.- 1,188 square miles.

Records available.- December 1939 to September 1942.

Extremes.- Maximum discharge observed during year, 5,390 second-feet Jan. 25 (gage 

neignt, 19.2 feet); minimum observed, 14 second-feet Oct. 1-8, Aug. 5, 6.

1939-42: Maximum discharge, 11,100 second-feet Apr. 4 or 5, 1941 (gage height, 

26.2 feet, from floodmarks); minimum observed, 3.8 second-feet July 24, 1940.

Flood In February 1938 reached a stage of 31.3 feet, from floodmarks.

Remarks.- Records good prior to Dec. 14 and fair thereafter. Gage read twice daily, 

with additional readings In periods of high water. Numerous diversions above station 

for irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

14

14

14

14

14

14

14

14

15

15

15

15

16

16

16

16

16

16

17

17

17

17

17

18

18

18

21

19

19

19

19

Nov.

19

20

20

20

20

21

21

21

21

21

22

21

20

22

22

23

23

23

23

23

24

24

24

24

24

24

25

25

26

26

0

Dec.

26

26

29

28

27

26

26

26

26

26

26

26

26

29

214

492

366

136

SI

61

57

52

55

55

62

67

131

746

2,900

2,170

1,620

Jan.

1,050

610

366

263

206

166

146

130

122

96

93

82

81

72

71

66

58

57

56

55

57

58

82

812

4,560

2,510

2,060

1,840

1,240

895

730

Feb.

595

686

925

940

1,350

2,680

3,040

2,240

1.6OO

1,160

895

730

625

520

464

428

360

318

302

258

274

397

363

302

274

258

226

206

_

_

-

Mar.

192

182

182

175

170

166

153

155

138

142

452

478

436

598

1,620

1,190

925

805

670

565

478

419

380

344

304

276

265

242

221

211

197

Apr.

197

185

187

296

957

1,330

855

585

468

405

455

540

392

600

785

630

630

720

600

510

430

388

350

320

298

276

268

278

262

240

-

May

315

262

236

216

200

d!80

168

142

136

125

162

168

142

125

136

136

121

107

104

98

89

80

74

69

 71

82

76

69

66

62

61

June

58

57

55

54

52

51

47

47

45

43

41

38

37

35

35

34

33

32

29

26

24

23

23

22

23

21

21

20

20

20

-

July

19

20

20

19

18

18

16

16

20

20

20

20

19

19

18

18

17

16

17

17

17

16

16

15

16

16

17

17

16

15

15

AUR.

16

15

15

15

14

14

15

15

15

15

15

15

16

15

15

15

15

15

15

15

15

15

16

17

17

17

17

17

16

16

16

Sept.

16

16

15

15

15

16

16

16

16

16

16

16

16

15

15

16

15

15

15

15

15

15

15

17

17

17

17

18

18

17

-

Month

October. ...................................

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

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

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

Water year 1941-42 ......................

Secondfoot days

12,731

4,078

85,738

Maxima

21

2,900

1,620

20

18

4,560

Minima

14

19

26

13

138

61

20

15

14

15

14

Mean

16.3

22.5

311

630

603

801

411

481

132

35.5

17.6

15.5

15.9

235

Runoff in 

ao re-feet

1,000

1,340

19,120

455,900

37,080

44,460

25,250

28,640

8,090

2,110

1,080

950

946

170,100

d Gage-height record doubtful; discharge Interpolated. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 

o convert war time to standard time, subtract 1 hour.

9, 1942; Pacific war time thereafter.
PAJARC RIVES BASIN 153 

Pacheco Creek near Dunneville, Calif.

Location.- Staff gage, lat. 36°58'50", long. 121°22'50", in Ausaymas y San Felipe Grant, 

at private road bridge, 3.3 miles northeast of Dunneville, Santa Clara County. 

Altitude of gage, about 240 feet (from topographic map).

Drainage area.- 146 square miles.

Records available.- January 1940 to September 1942.

Extremes.- Maximum discharge during year, 1,740 second-feet Feb. 6 (gage height, 6.2 feet, 

from floodmarks); minimum observed, 0.5 second-foot June 16.

1940-42: Maximum discharge observed, 4,070 second-feet Mar. 3, 1941 (gage height, 

10.6 feet); no flow Jan. 1-7, June 12-26, 1940.

Remarks.- Records good May to September, fair October to April except those above 200 

second-feet, which are poor. Gage read twice dally with additional readings in periods 

of high vrater. A detaining reservoir (capacity, about 6,000 acre-feet) several miles 

above station stores flood water for release during low-flow periods.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.3

1.3.

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.5

1.8

2.3

2.3

2.5

2.7

2.7

2.7

2.7

2.7

Nov.

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

2.7

 a2.5

Dec.

-.

(

4

6

6

6

6.5

6.5

1.5

22

16

15

13

6.5

6

5

3.7

3.0

3.4

209

488

850

630

218

Jan,

161

95

74

63

60

46

43

43

41

39

38

36

33

32

31

29

28

26

26

26

26

26

27

28

1,200

473

286

322

175

119

103

Feb.

97

92

203

251

530

1,080

730

359

206

140

101

84

72

62

64

57

43

39

33

31

45

74

53

47

38

31

26

25

_

-

Mar

22

19

19

19

17

17

15

13

12

12

57

58

47

79

492

258

161

82

66

46

35

29

25

20

19

19

16

13

13

13

12

Apr.

11

11

10

28

50

135

66

46

43

37

36

28

22

230

135

94

85

72

66

58

35

28

25

20

19

18

16

14

13

13

-

May

13

13

13

12

11

9.5

8

7

6.5

6.5

6.5

10

9.5

9

7.5

6.5

5.5

5

4.9

4.2

3.9

3.6

3.6

3.0

3.0

2.5

2.5

2.2

2.0

1.8

1.6

June

1.6

1.6

1.6

1.6

1.3

1.3

1.2

1.0

1.0

.8

.8

.8

.8

.7

.6

.6

.6

.6

.6

.7

1.2

2.2

3.0

3.6

4.2

4.5

4.9

5.5

5.5

5.5

July

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5

4.9

4.9

4.2

4.2

4.2

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

4.2

4.2

4.2

Aug.

4.2

4.9

4.5

3.9

3.6

3.0

3.0

2.5

2.5

2.5

3.9

13

34

27

20

17

6.5

6

5.5

4.9

4.5

4.2

3.0

2.5

2.5

2.5

2.5

2.5

2.5

2.5

2.5

Sept.

2.5

2.5

2.5

2.5

2.5

2.4

2.4

2.3

2.3

2.2

2.2

2.2

2.1

2.1

2.1

2.0

2.0

2.0

1.9

1.9

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

-

Month

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

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

Unv

Water year 1941-42 ......................

Secondfoot-days

2,543.1

3 755

1 725

14.897.2

Maximum

850

1 2OO

1,200

Minimum

1.5

T R

.6

Mean

2.58

82.0

4 52

4O.8

Runoff in 

acre- feet

154

5,040

29,540

a No gage-height record; discharge computed on basis of records for neerby streams 

Note.- Oage-height record doubtful Sept. 6-20, 22-30; discharge interpolated. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific «ar time thereafter. 

To convert war time to standard time, subtract 1 hour.

530350 O - 43 - 11
154

Uvas Creek near Morgan Hill, Calif.

Location.- Water-stage recorder, lat. 37°G4 I 00", long. 121°41'30", in Las Uvas Grant, 500

feet upstream from Uvas Da'i, O.C raile downstream from Eastman Canyon, and 4.0 miles

southwest of Morgan Hill, Santa Clara County. Altitude of gage, about 390 feet (from

topographic map). 

Drainage area.- 30.2 miles.

Records available.- December 1930 to September 1942. 

Average discharge.- 11 years, 41.9 second-feet. 

Extremes.- Maximum discharge during year, 4,340 second-feet Jan. 24 (gage height, 10.45

feet); minimum, 0.3 second-feet Oct. ''-ll, 18, 19.

1930-42: Maximum discharge, 8,630 second-feet Dec. 11, 1937 (gage height, 13.70

feet), from rating curve extended above 3,000 second-feet; no flow at tines In each

of years 1931-34, 1939.

Remarks.- Records good except those below about 6 second-feet, which are fair. No regula- 

 tlon or large diversion above station. Water diverted at Uvas Dan for municipal

supply of Gllroy.

Rating table, water ye

2.1

2.2

2.3

0.2

.8

2.3

1941-42 (gage height, In feet, and discharge, 

In second-feet)

2.8 

3.0 

3.3

23.5

41

82

286

378

476

5.8 

6.2 

6.6

840

1,010

1,190

1.0 1,390

7.4 1,620

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.5

,S>

.4

.4

.4

.4

.3

.3

.3

.3

.3

.4

.4

.4

.4

.4

.4

.3

.3

.4

.5

1.1

1.1

1.0

1.0

1.1

2.5

1.7

1.4

1.2

1.1

Nov.

1.0

1.4

2.9

2.0

1.7

1.5

1,4

.2

.2

.2

.2

.1

.1

.0

.0

.0

.1

1.0

1.0

1.0

1.1 1.1

1.0

1.0

1.1

1.2

1.2

1.2

1.4

2.7

Dec.

1.8

2.0

14

6

3.8

3.4

2.7

2.7

2.7

2.7

2.7

2.7

3.8

200

400

230

80

39

28

24

19

16

16

16

21

21

218

508

434

214

138

Jan.

92

70

57

48

42

37

35

33

29

27

24

23

21

21

21

20

19

19

17

16

16

31

248

1,620

808

410

545

328

230

184

149

Feb.

126

227

179

199

484

666

410

275

212

172

144

124

107

95

87

79

73

67

63

57

63

56

51

47

45

41

39

37

_

.

-

Mar.

36

34

33

31

30

29

27

26

25

32

179

79

66

409

225

151

122

103

88

79

72

64

60

56

52

48

45

42

40

38

37

Apr.

36-

35

45

168

662

272

177

142

120

107

92

82

95

170

112

109

122

116

102

93

84

79

74

68

64

60

59

57

52

53

-

May

60

48

45

42

39

37

36

35

34

32

40

35

33

31

34

31

29

27

24

22

21

20

20

19

29

26

23

21

21

19

19

June

18

18

16

16

16

15

15

14

14

14

13

12

12

12

12

11

11

10

10

10

9.6

9

8.5

8.5

8.5

8.5

8

7

7

7

July

6.5

6

5.5

5.5

5.5

5.5

5.5

4.7

4.7

4.7

4.4

4.2

4.2

4.2

4.2

4.0

3.8

3.6

3.6

3.6

3.4

3.1

2.7

2.3

2.0

2.0

2.3

2.5

2.0

2.0

2.5

Aug.

2.3

2.5

2.3

1.7

1.5

1.7

1.5

1.5

1.5

1.5

1.4

1.5

1.5

1.2

1.4

1.5

1.1

.8

1.1

1.4

1.2

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

.8

.8

Sept.

0.8

.9

.9

1.1

.9

.9

.8

.9

1.0

1.2

1.4

1.1

1.1

1.1

1.1

1.2

1.4

1.4

1.4

1.4

1.4

1.4

1.2

1.2

1.2

1.2

1.1

1.1

1.0

.9

-

Month

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

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

September. .................................

Water year 1941-42 ......................

Peak discharge. -Dec. 28 (11 a.m.) 1,030 se

938 sec. -ft.; Feb. 6 (6 a.m.) 1,920 sec. -ft

Secondfoot-days

33.7

19,561.8

c.-ft.; Jan

; Mar. 14 (]

Maximum

1.4

1,620

24 (3 p.m.

1 a.m.) 880

Minimum

25

.8

.3

4,340 sec.

see. -ft.; A

Mean

151

1.12

53.6

-ft.; Jan.

pr. 5 (11 a

Runoff in 

acre-feet

8,380

1,890

67

38,800

27 (7:30 a.m.)

.m.) 1,320

sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

time to standard time, subtract 1 hour.

time thereafter.
PAJARO RIVER BASIN 165 

Tres Pinos Creek near Tres Pinos, Calif.

Location^- Water-stage recorder, lat. 3G°45'20", long. 121°17'00", In Santa Ana y Qulen

3abe Grant, 3i miles southeast of Tres Pinos, San Benlto County, and about 5^'miles

upstream from mouth. Altitude of gage, about 570 feet (from topographic map). 

Drainage area.- 209 square miles. 

Records available.- December 194-0 to September 1942. December 1922 to May 1923 and

December 1939 to November 1940, at site 1 mile dovmstream (records of low flow not

equivalent on account of diversions for Irrigation and sone subsurface flow at former

site). 

Extremes.- Maximum discharge during year, 896 second-feet Feb. 6 (gage height, 3.63 feet):

minimum, 1.1 second-feet (regulated) June 19.

1922-23, 1939-42: Maximum discharge, 0,060 second-feet Apr. 4, 1941 (gage height,

7.75 feet), from rating curve extended above 3,500 second-feet: no flow at times (former

site).

Flood In February 1938 reached a stage of about 9.0 feet, from floodnarks, present

datum. 

Remarks.- Records good April to September, fair October to December, poor January to

March. Diversions above station for Irrigation.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet) 

(Shifting control method used Nov. 21 to Dec. 9)

1.2 4.0

1.3 6

1.4 9

1.5 13.5

Oct. 1 to Ja

1.6 2

1.7 2

1.8 4

1.9 5

2.0 72

2.2 117

2.4 174

Jan. 25 to Sept. 30

0.9

1.0

1.1 10

1.2 17.5

3.2 

5.1

1.3

1.4

1.5

1.6

1.7 82

2.0 146

2.3 222

2.6 304

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

6

6.5

6.5

7

7

7

7

7

7

7

7

7

7

5.5

6.5

6

6

6

6

6

6.5

6

6

6

6

6

6

a

6

6

6

Nov.

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6

5.5

5

5.5

5.5

6

6

6

6

6

6

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

-

Dec.

6.5

6.5

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

7

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

13

103

117

122

100

Jan.

68

30

25

20

17

15

14

13

12

11

11

10

9

9

9

8

8

8

8

B

8

8

9

10

214

f73

f73

f64

f36

29

26

Feb.

22

22

32

24

62

273

140

78

54

42

35

31

26

22

19

18

15

14

14

13

18

56

30

25

24

21

18

16

_

-

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February. ..................................

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

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

Hay

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

14

14

14

14

13

13

12

12

11

12

24

24

26

139

181

82

52

41

37

30

25

23

22

21

20

18

18

17

16

15

15

Apr.

15

15

14

18

23

31

24

19

16

18

25

17

15

29

32

24

49

35

25

20

16

15

14

12

12

11

12

12

13

12

-

Secondfoot-days

197.5

187.0

625.0

27,136.6

863

1,164

977

593

246.0

167.0

162.2

151.9

153.6

5,467.2

May

14

12

11

9.5

8.5

8

8

8

8

8

9.5

9.5

8.5

8

7.5

.5

.5

.5

.5

.5

6.5

6.5

6.5

6.5

6.5

6

6

6

6

Maximum

7

6.5

122.

2,010

214

273

181

49

14

6.5

6

5.5

6

273

June

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6

6

6

6

6

6

6

6

6

5

5.5

5.5

4.3

4.1

4.3

3.9

4.3

4.7

4.5

4.3

4.1

-

Minimum

5.5

5.

6.5

3.4

8

13

11

11

6

3.9

3.9

3.7

4.5

3.7

July

4.1

4.7

5.5

5

5.5

5.5

6

5.5

5

5

5.5

6

6

6

5.5

5

6

5.5

5.5

6

6

6

4.3

3.9

5

4.9

5.5

4.1

3.9

4.3

5.5

Aug.

5.5

5.5

5.5

5.5

5.5

4.9

4.9

4.9

4.9

4.9

4.7

4.3

4.3

4.9

5.5

4.9

5.5

5.5

4.9

4.9

4.1

3.7

5.5

5

5

4.7

3.9

4.7

4.1

4.3

5.5

Mean

6.37

6.23

20.2

74.3

27.8

41.6

31.5

19.8

7.94

5.57

5.23

4.90

5.12

15.0

Sept.

5.5

5.5

5

4.9

4.9

5

5

5

5

5

4.9

4.7

4.9

4.5

4.5

4.5

4.7

4.7

5.5

5.5

5.5

4.9

5

5.5

5.5

5.5

5.5

5.5

6

5.5

~

Runoff in 

acre-feet

392

371

1,240

53,820

1,710

2,310

1,940

1,180

488

331

322

301

305

10,890

Peak discharge.- Jan. 25 (3 a.m.) 567 sec.-ft.; Feb. 6 (1:30 p.m.) 896 sec-ft.; Mar. 14 (11 p.m.) 

335 sec.-ft.

f Discharge computed on basis of partly estimated gage-height record.

Mote.- Doubtful gage-height record Jan. 3-24; discharge computed on basis of records for nearby 

streams.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942: pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
156

San Benlto River near Willow Creek School, Cslif.

--stare recorder, lat. G6°36'55", long. 121°12' 50", in SWi sec. 21, T. 

]., lj miles cownstrean from V.'illnw Creek, 15 miles northwest of Willow

Location.- Water-s

Creek School, and 10 miles northwest of San Benito. Datum of gage Is 896.8 feet above 

mean sea levle (unadjusted).

Drainage area.- 250 square miles.

Records available.- December 1939 to September 1942.

Extremes.- Kaximum discharge durinc year. 2,300 second-feet probably Jan. 25 (gage height, 

4.9 feet from floodmarks on outside gage), from rating curve extended above 1,300 secondfeet: minimum, 2.8 second-feet Aug. 19.

1939-42: Maximum discharge, 6,200 second-feet Apr. 4, 1941 (gage height, 7.8 

feet), from rating curve extended above 1,600 second-feet; minimum, 1.2 second-feet 

Aug. 10-13, 20, 21, 1940. Highest stage known, about 9.0 feet (present gage datum) from floodmarks left 

by highwater of 1937-38.

Remarks.- Records fair. Small diversions above station for irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

4.8 

4.8 

4.4 

4.8 

5

5 

5 

5 

5 

5

5 

4.8 

4.8 

5

4.8 

4.8 

4.8 

5 

5.5

7

7 

5.5 

5.5 

6

5.5 

a6 

a6 

6.5 

6 

5.5

Nov.

5.5 

5.5 

5.5 

5.5 

5

5 

5 

5 

5 

5

5 

5 

5 

5 

5

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

5.5 

5.5

5.5 

5.5 

5.5 

7.5 

7.5

Dec.

8 

8 

12 

12 

11

10 

8.5 

8 

8.5 

10

9 

9 

10 

14 

34

63 

62 

44 

34 

27

25 

21 

20 

20 

22

23 

43 

585 

722 

215 

166

, Jan.

129 

92 

73 

62 

57

52 

49 

44 

41 

39

37 

35 

a35 

830 

830

a30 

a 30 

a25 

a25 

s25

a25 

a25 

a25 

a250 

f931

203 

123 

102 

83 

74 

66

Feb.

63 

63 

87 

76 

94

f!78 

164 

87 

65 

58

51 

48 

45 

44 

42

41 

38 

36 

34 

34

37 

46 

43 

40 

39

35 

34 

31

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber ...................................

lendar year 1941 

ary

ter year 1941-42 ...............

Mar.

28 

27 

27 

27 

25

25 

23 

23 

22 

23

54 

64 

46 

77 

215

155

116 

90 

74 

64

58 

54 

51 

50 

48

45 

42 

41 

39 

37 

36

Apr.

37 

36 

35 

48 

142

262 

140 

94 

78 

174

218 

132 

105 

299 

193

134 

203 

144 

111 

100

95 

89 

83 

78 

73

71 

70 

77 

74 

69

May

73 

71 

62 

58 

56

52 

50 

49 

47 

47

47 

47 

45 

44 

43

43 

42 

40 

37 

36

33 

33 

32 

32 

33

37 

34 

32 

31 

29 

28

fSays "-1 

164.8 7 

163.5 7.5 

2.264.0 722

46,474.6 2,140

2,847 931 

1,653 178 

1,706 215 

3,464 299 

1,343 73 

447.0 27 

143.7 6 

113.7 4.2 

99.2 3.4

14,408.9 931

June

27 

26 

25 

24 

23

23 

21 

20 

20 

20

19

18 

16 

15 

14

13 

12 

11 

11 

10

9.5 

9 

8 

8 

8

8 

V.5 

7.5 

7 

6.5

Minimum

4.'

5 

8

4.C

25 

31 

22 

35 

28 

6.£ 

4.C 

3.-: 

3.]

3.]

July

6 

,5 

,5 

.5 

.5

.5

.7

.3 

.5 

.8

.7

.5 

.5 

.5 

.3 

.0

.0 

.2 

.0 

.0 

.0

.2 

.2 

.2 

.2 

4.2 

4.2

Aug.

4.2

4.0 

4.0 

3.9 

3.9

3.9 

3.9 

3.9 

3.9 

4.0

4.2 

3.9 

3. 

3. 

3.

3. 

3. 

3. 

3. 

3.

3. 

3. 

3. 

3. 

3.

3. 

3. 

3. 

3. 

3. 

3.

Mean

I 5.32 

5.45 

73.0

) 127

91.8 

59.0 

55.0 

115 

43.3 

14.9 

4.64 

3.67 

3.31

39.5

Sept.

3.4 

3.4 

3.4 

3.4 

3.2

3.2 

3.2 

3.4 

3.4 

3.4

3.2 

3.1 

3.1 

3.1

3.1 

3.2 

3.4 

3.4 

3.4

3.4 

3.2 

3.2 

3.4 

3.4

3.4 

3.4 

3.4 

3.4 

3.4

Runoff in 

acre-feet

327 

324 

4,490

92,180

5,650 

3,880 

3,380 

6,870 

2,660 

887 

885 

226 

197

28,580

Peak discharge.- Dec. 28 (12 p.m.) 1,850 sec. -ft.; Jan. 25, 2,300 sec. -ft.; Apr. 14 (12 m.) 823

sec. -ft. 

a No gage-height record; discharge computed on basis of range of stage and records for nearby 

streams, 

f Discharge computed on basis of partly estimated gage-height record. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
157

San Lorenzo River at Big Trees, Calif.

Location.- Water-stage recorder, lat. 37°01'40", long. 122°03'30", in Canada del Rincon 

Grant, Santa Cruz County, half a mile south of Big Trees station on Southern Pacific 

Railroad, 1.6 miles downstream from Zayante Creek, and 4 miles north of Santa Cruz. 

Altitude of gage, about 150 feet (from topographic map).

Drainage area.- 110 square miles.

Extremes.- Ilaxinum discharge during year, 13,400 second-feet Jan. 24 (gage height, 16.10

 feet:""minimum, 14 second-feet (regulated) Nov. 26.

1937-42: Maximum discharge, 2^,OCO second-feet Feb. 27. 1940 (gage height, 21.1 

feet, from f loodrnarks), from rating curve extended above 5,000 second-feet on basis of 

slope-area studies and logarithmic plotting; minimum, 0.6 second-foot (regulated) June 

25, 1939.

Remarks.- Records good. Many small diversions above station for domestic supply.

Rating taole, wate

1.1

1.2

1.3 

1.5 

1.7 

1.9

year 1941-42 (gage height, in feet, and discha 

aecond-f eet )

2.1 

2.4 

2.7 

3.0 

3.4 

3.8

100

137

187

249

351

470

4.2 

4.6 

5.0 

5.5 

6.0 

7.0

590

716

850

1,040

1,270

1,820

8.0

9.0

10.0

11.0

12.6

2,530

3,350

4,320

5,460

7,600

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3

4 

5

6 

7 

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.

29 

28 

27 

28 

28

29 

29 

30 

29 

29

29 

29 

31 

29

28 

29 

28 

28 

30

34 

34 

32 

32 

34

36 

51 

42 

36 

33 

32

Nov.

33 

54 

56 

44 

38

34 

34 

34 

34 

33

32 

33 

32 

33 

33

34 

32 

32 

36 

32

33 

32 

32 

32 

32

32 

34

66 

66

Dec.

44 

40 

102 

58 

46

40 

37 

36 

35 

36

35 

44 

78 

643 

745

506 

231 

151 

115 

104

95

89 

113 

97

130

130 

714 

1,240 

850 

506 

395

Jan.

307 

242 

207 

185 

166

153 

161 

166 

142 

133

126 

119 

114 

110 

106

104 

101 

98 

94 

91

92 

352 

1,520 

7,470 

2,400

1,380 

2,330 

1,100 

761 

658 

560

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Apr!

June 

July 

Augu 

Sept

Wa

Feb.

497 

1,210 

761 

1,330 

2,510

2,460 

1,300 

888

719 

617

5-12 

485 

440 

398 

366

345 

318 

297 

280 

268

266 

249 

236 

231 

220

205 

196 

191

lendar year 1941 

ary

ter year 1941-42 ... .................. |

Mar. i Apr.

185 

183 

180 

174 

169

164 

158 

156 

155 

185

428 

240 

223 

1,020

706

455 

366 

323 

292 

268

249 

236 

227 

216 

203

194 

185 

178 

173 

169 

176

174 

166 

207 

428 

1,080

700 

476 

389 

348 

392

340 

300 

323 

521 

389

404 

500 

479 

413 

366

329 

305 

283 

268 

254

240 

242 

245 

220 

227

"

Secondfoot-days

972 

1,114 

7,485

133,048

21,548 

17,825 

8,236 

11,008 

4,922 

2,699 

1,697 

1,197 

1,002

79,705

May

242 

209 

198 

191 

183

176 

171 

1£7 

164 

158

191 

166 

158 

153

174

155 

147 

140 

134 

133

129 

124 

120 

116 

214

164 

142 

133 

127 

124 

119

Maximum

51 

66

1,240

7,380

7,470 

2,510 

1,020 

1,080 

242 

119 

64 

47 

41

7,470

June

119

116 

114 

111 

108

106 

106 

103 

101 

97

96 

94 

92 

91 

88

86 

86 

84 

82

81

79 

77 

77 

76 

75

74 

71 

70 

69 | 

70

Minimum

27 

32 

35

27

91 

191 

155 

166 

116 

69 

43 

34 

29

27

July

63 

63 

64 

63 

62

62 

61 

60 

59 

58

58 

58 

56 

55 

54

54 

56 

55 

54 

54

54 

52

47 

47 

46

44 

43 

48 

50 

49 

48

Aug.

47 

47 

44 

43 

42

42 

41 

40 

39 

39

40 

39 

39 

39 

39

37 

37 

37 

37 

36

36 

36 

36 

35 

36

36 

36 

34 

36 

36 

36

Mean

31.4

37.1 

241

365

695 

637 

266 

367 

159 

90.0 

54.7 

38.6 

33.4

218

Sept.

41 

37 

38 

36 

36

36 

34 

33 

37 

39

37 

36 

37 

32 

30

31 

32 

32 

32 

32

32

31 

30 

30 

29

30 

30 

32 

30 

30

Runoff in 

acre-feet

1,930 

2,210 

14,850

263,900

42,740 

35,360 

16,340 

21,830 

9,760 

5,350 

3,370 

2,370 

1,990

158,100

Peak discharge.- Dec. 28 (10 a.m.) 2,020 aec.-ft.; Jan. 24 111 a.m.) 13,400 sec.-ft.; Jan. 

(7~a.ra.) 3,460 sec.-ft.; FED. 6 (8 a.m.) 3,980 gee.-ft.; Mar. 14 (3 p.m.) 1,820 aec.-ft.; Apr. 

{11 a.m.) 1,720 aec.-ft.

Time oasis; Pacific standard time prior to 2 a.m., FeD. 9, 1942; Pacific war time thereafte 

To convert war time to standard time, guotract 1 hour.
15B SAN LORENZO RIVER BASIN

Branciforte Creek at Santa Cruz, Calif.

Location.- Water-stage recorder and concrete control, lat. 36°58', long. 122°01'. in 

Santa Cruz, Santa Cruz County, about 150 feet downstream from Market Street Bridge 

and 1 mile upstream from mouth. Datum of gage is 15.74 feet above mean sea level 

(levels by Corps of Engineers, U. S. Army). Prior to Nov. 26, 1941, staff gages 

nearby.

Drainage area.- 18.2 squar^ miles.

Records available.- January 1940 to September 1942.

Extremes.- Maximum discharge during year, 2,370 second-feet Jan. 24 (gage height, 10.72 

feet); minimum not determined.

1940-42: Maximum discharge, 3,910 second-feet Feb. 9, 1941 (gage height, 15.1 

feet, from floodmarks), from rating curve extended above 2,500 second-feet; minimum 

observed, 1.3 second-feet Oct. 5, 1940.

Remarks.- Records poor. No diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

 e2.0

1

Nov.

 e2.5

1.6

1.7

1.9

9

7

-

Dec.

3.4

3.0

12

4.6

3.4

3.0

2.9

2.8

2.8

2.7

2.6

4.0

15

402

257

50

24

19

15

14

12

11

32

18

35

27

33S

339

203

96

69

Jan.

45

34

27

22

20

18

ZS

24

17

15

14

IS

12

11

10

10

9

9

9

8

8

28

201

991

362

200

374

141

88

81

63

Feb.

58

308

105

471

718

392

160

99

76

62

53

47

40

36

33

27

S4

S5

22

21

22

21

20

20

19

18

18

18

_

-

-

Mar.

18

18

18

17

17

17

17

17

16

26

58

30

26

S37

94

49

36

30

26

23

21

19

18

18

17

17

17

17

17

17

17

Apr.

17

17

18

28

176

71

38

30

27

31

26

22

22

30

22

30

81

59

41

31

26

23

19

17

16

16

17

17

15

16

~

May

 elO

June

e5

July

 e3.0

Aug.

 e2.0

Sept.

 eS.O

-

Month

U«iv

Water year 1941-42 ......................

Secondfoot-days

62.0

83.7

2,017.2

18,883.1

2,885

2,931

1,035

999

310

10,687.9

Maximum

_

9

402

1,800

991

718

287

176

_

_

_

991

. Minimum

_

_

2.6

_

8

18

16

15

_

_

M

-

Mean

2.0

2.79

65.1

51.7

93.1

105

33.4

33.3

10

29.3

Runoff in 

acre-feet

1S3

166

4,000

37,' 4 60

5,7SO

5,810

2,050

1,980

615

298

119

21,190

Peak discharge.- Dec. 27 (11 a.m.) 1,S70 sec.-ft.; Jan. 24 (9 a.m.) 2,370 sec.-ft.; Feb. 5 (11 

a.m. ) 1,580 sec.-ft.

e Stage-discharge relation indefinite; discharge computed on basis of six discharge measurements 

and weather records.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
3TEVENS CREEK BASIII 159

Stevens CreeK near Cupertino, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°1B'20", long. 122°04'25",

 in SWi sec. 22, T. 7 S., R. 2 W., at county highway bridge, a quarter of a mile 

downstream from Stevens Creek Dam and about 4 miles west of Cupertino. Altitude of 

gage, about 385 feet (from topographic map).

Drainage area.- 13.1 square miles.

Records available^- January 1930 to September 1942.

Average discharge.- 12 years, 13.9 second-feet.

Extremes.- Maximum discharge during year, 346 second-feet Feb. 6 (gage height, 3.42

 feet); minimum, 0.7 second-foot Dec. 9, 10.

1930-42: Maximum discharge, 2,390 second-feet Feb. 28, 1940 (gage height, 7.05 

feet), from rating curve extended above 350 second-feet; no flow at times each year 

except L.,38, 1941, 1942.

Remarks.- Records good. Flow regulated by Stevens Creek Reservoir (capacity,4,000 acrefeet); water released during summer.

Rating table, water year 1941-42 (gage height, in feet, and disc 

second-feet)

3, in

2.1

4.2 2.0 

2.2

2.4 

2.6 

2.8 

3.0 

3.2

78

117

165

220

278

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

18

18

18

18

17

17

17

16

16

16

16

16

16

17

17

17

17

17

16

16

16

16

16

16

16

16

15

15

15

15

15

Nov.

15

14

14

12

7

3.9

2.6

2.6

2.6

2.6

2.6

2.6

2.6

2.8

2.8

2.8

2.8

2.6

2.4

2.4

2.1

2.1

2.1

1.3

.8

.9

.9

1.0

1.3

1.4

-

Dec.

1.4

1.0

1.0

.8

.8

.8

.8

.8

.7

.9

2.4

3.4

3.9

6.5

14

25

27

16

14

14

14

14

14

14

14

13

14

15

13

13

12

Jan.

12

12

12

12

12

12

12

12

12

12

12

9

8

8

8

8

a

8

8

8

8

16

27

28

15

20

110

165

160

160

124

Feb.

55

44

55

Mar.

14

14

14

72 14

100

254

173

128

115

115

111

92

55

38

38

38

38

39

38

39

38

38

38

38

38

33

18

17

-

-

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February. ..................................

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

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

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

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

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

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

September ..................................

Water year 1941-42 ......................

14

14

14

14

15

25

43

27

29

118

113

63

53

45

41

36

33

32

31

29

28

27

25

25

24

24

24

Apr.

23

20

27

88

158

89

61

52

47

45

40

38

46

80

56

57

66

58

53

57

55

43

43

43

40

32

26

21

24

36

"

Secondfoot-days

507

116.6

285.2

13,227.8

1,038

1,895

1,022

1,524

699

413.5

365.5

496

419.5

8,801.3

May

36

36

36

32

23

18

18

18

18

22

26

32

32

32

28

19

16

16

20

22

22

22

19

17

17

17

17

17

17

17

17

Maxi^

18

15

27

470

165

254

118

158

36

17

18

16

23

254

June

17

16

15

15

15

15

15

15

15

15

15

15

15

15

15

15

14

13

13

13

13

13

13

13

13

13

11

9.5

9.5

9.5

-

Minimum

15

.8

.7

.7

8

17

14

20

16

9.5

7!s

16

7

.7

July

9.5

9.5

9

7.5

7.5

7.5

7.5

8

8

8

6

7.5

7.5

7.5

12

16

16

17

17

18

17

16

16

16

16

16

16

16

16

16

16

Aug.

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

16

Mean

16.4

3.89

9.20

36.2

33,5

67,7

33.0

DO. 8

22 5

iz'.e

12,4

16,0

14.0

24.1

Sept.

15

15

13

9.5

9.5

9

8.5

8.5

8.5

8

8

8

6

7.5

7

9.5

17

17

17

17

17

17

17

17

18

22

22

23

23

23

"

Runoff in 

acre feet

1,010

231

566

26,350

2,060

3,760

2,030

3,020

1,390

820

765

984

832

17,470

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

convert war time to standard time, subtract 1 hour.
160 GUADALUPE CREEK BASIN

Guadalupe Creek at Guadalupe, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°13'05", long. 121°54'35",

 in SWi sec. 19, T. 8 S., R. 1 E., half a mile northwest of Guadalupe and 3.5 miles 

upstream from Alamltos Creek. Altitude of gage, about 325 feet (from topographic 

map).

Drainage area.- 12.6 square miles.

Records available.- January 1930 to September 1942.

Average discharge.- 12 years, 12.2 second-feet.

Extremes.- Maximum discharge during year, 310 second-feet Jan. 29 (gage height, 2.40

 feet); minimum, 2.0 second-feet (regulated) June 17.

1930-42: Maximum discharge, 1,160 second-feet Dec. 28, 1931 (gage height, 4.05 

feet), from rating curve extended above 840 second-feet; no flow during part of each 

year except 1937, 1938, 1941, and 1942.

Remarks.- Records fair. Small diversions above station. Flow regulated by Guadalupe

 Reservoir (capacity, 3,500 acre-feet); water released during summer.

Rating table, water year 1941-42 (gage height, in feet, and discharge, in 

second-feet)

2.6

8.5 

13.5

1.0

1.1

19.5

27.5

37

47

1.4

1.5

1.6

1.7 106

1.9 

S.O 

2.1

126

149

175

205

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

10

10

10

10

10

10

10

10

10

12

12

12

14

16

15

15

15

16

16

16

16

16

16

15

15

15

15

IB

15

15

Nov.

14

14

14

14

14

14

15

14

10

10

10

10

10

10

10

10

10

9.5

9

9

9

9

9

8.5

8.5

8.5

8

8

9.5

9

-

Dec.

8.5

8

10

8

7.5

8.5

13

15

19

19

19

16

5.5

14

15

28

13

9

7.5

7.5

6.5

6.5

7.5

15

15

12

16

52

53

30

22

Jan.

17

14

12

11

10

9.5

9

8.5

8

9.5

15

12

9.5

13

16

15

13

7

11

14

12

20

63

193

112

63

93

62

44

36

29

Feb.

26

36

30

35

53

91

66

66

74

57

47

43

38

34

29

27

25

24

23

20

21

23

18

17

16

15

14

13

-

-

"

Month

October. ...................................

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

Decembe r ...................................

Calendar year 1941 ......................

January. ...................................

February ...................................

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

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

Mflv ay. .......................................

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

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

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

September. .................................

Hater year 1941-42 ......................

Mar.

12

12

12

11

10

10

10

9

8.5

13

40

22

21

86

74

51

42

36

32

27

24

21

20

18

18

16

14

14

13

12

12

Apr.

11

11

15

34

133

106

72

59

45

27

24

27

42

80

55

55

58

51

46

42

38

35

30

28

26

24

24

22

20

20

-

May

21

18

16

16

15

14

14

13

13

12

14

13

12

12

12

12

10

10

10

9.5

9.5

9.5

9.5

9

9.5

9.5

9

9

8.5

8

7.5

Second- uaximnm foot-days Max!"" 

412 16

317.5 15

486.5 53

8,771.5 442

961 193

981 91

720.5 86

1,260 133

365 21

148.1 7.5

505.6 48

492 27

479.5 22

7,128.7 193

June

7.5

7

6

5.5

5.5

5.5

5.5

5.5

5.5

5

5

4.8

5

4.8

4.8

4.8

4.2

4.5

4.2

4.2

4.2

4.2

4.2

4.5

4.5

4.5

4.8

4.2

4.0

4.2

-

Minimum

10

8

5.5

3.5

7

13

8.5

11

7.5

4.0

3.7

14

9.5

3.7

July

3.7

4.0

3.7

4.0

4.0

4.0

4.0

4.0

4.0

4.2

9

14

14

14

14

20

20

21

21

33

48

41

18

18

20

28

28

24

15

18

28

Aug.

27

27

24

18

18

18

18

15

15

15

15

15

15

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

14

Mean

13.3

10.6

15.7

24.0

31.0

35.0

23.2

42.0

11.8

4.94

16.3

15.9

16.0

19.5

Sept.

14

14

14

14

12

9.5

9.5

9.5

9.5

9.5

12

15

15

15

15

15

15

15

16

22

22

22

21

21

21

21

21

20

20

20

"

Runoff in 

acre-feet

817

630

965

17,400

1,910

1,950

1,430

2,500

724

294

1,000

976

951

14,150

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

To convert war time to standard time, subtract 1 hour.

time thereafter.
GUADALUPE CREEK BASIN 161

Guadalupe Creek at San Jose, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°20'00", long. 121°54'00", 

100 feet downstream fron Los Gatos Creek, In city of Sari Jose, Santa Clara County. 

Altitude of gage, about 80 feet (from topographic map).

Drainage area.- 131 square miles.

Records available.- January 1930 to September 1942.

Average discharge.- 12 years, 45.1 second-feet; affected by storage and spreading since 

1936.

Extremes.- Maximum discharge during year, 4,090 second-feet Jan. 24 (gage height, 7.73 

feet), from rating curve extended above 1,600 second-feet; no flow at various tines. 

1930-42: Maximum discharge, 8,680 second-feet Feb. 27, 1940 (gage height, 11.88 

feet), from rating curve extended above 3,200 second-feet by logarlthnlc plotting; no 

flow during parts of each year.

Remarks.- Records fair. Small diversions above station. Flow regulated by several 

reservoirs.

Discharge, in second-feet, water year October 1941 to September 1942

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.

0 

0 

0 

0 

.1

.2

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0

0 

0

.1

.4

1.0 

.7 

.9 

.6

.1 

.6 

0 

0 

0 

0

Nov.

0 

.1 

.7 

.5 

.6

.9 

.8 

.7 

.4 

0

0 

0 

0 

0 

.8

1.6 

2.5 

.9

.1 

0

.1

.9 

2.9 

.8

1.2

1.5 

1.8 

1.9 

1.8 

1.5

Dec.

1.8 

2.8 

4.8 

2.5 

2.0

1.8 

1.9 

2.3 

3.0 

3.9

3.7 

3.0 

2.8 

135 

237

260 

104 

44

10 

8

5.5 

4.8 

9.5 

7.5

14

10 

74 

442 

558 

237 

143

Jan.

93 

59 

39 

29 

19

14 

10 

8 

7 

6.5

7 

9.5 

8 

8 

8

6.5

6.5 

7 

6.5 

7

8 

61 

398 

2,320 

1,470

688 

1,210 

809 

457 

311 

234

Feb.

163 

403 

258 

379 

776

1,220 

848 

571 

427 

322

253 

238 

224 

189 

163

151 

133 

116 

103 

94

101 

96 

54 

62 

66

45 

41

37

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

lendar year 194: 

ary .

h. .....................................

ter year 1941-42 ...............

Mar.

37 

33 

40 

34 

27

28 

25 

23 

21 

25

182 

92 

82 

705 

545

279 

205 

142 

111 

90

64 

57 

53 

49 

42

41 

40 

36 

33 

30 

28

Apr.

35 

25 

29 

254 

1,110

645 

311 

214 

178 

157

128 

121 

218 

486 

224

283 

279 

193 

157 

154

136 

126 

109 

92 

88

90 

87 

82 

61 

48

Secondfoot-days

4.7 

25 

2,339.6

47,926.7

8,324.5 

7,533 

3,199 

6,120 

665.6 

125.3 

55.7 

197.5 

59.2

28,649.1

Time basis: Pacific standard time prior to 2 a.m., ^

To convert war time

May

66 

43 

29 

42 

42

34 

30 

33 

30 

27

35 

30 

27 

24 

26

24 

20 

17 

15 

10

5.5 

5 

5.5 

4.7 

3.5

4.9

7 

7 

7 

6 

5.5

Maximum

1.0 

2.9

558

2,940

2,320 

1,220

705 

1,110 

66 

23 

12 

10 

7.5

2,320

June

4.7 

4.5 

7 

10 

3.7

4.1 

1.3 

.6 

1.6 

3.2

1.0 

.6 

.6

.7 

.7

..7 

1.3 

2.8 

2.4 

2.4

2.6 

2.3 

4.3 

12 

13

23 

6 

3.4 

2.4 

2.4

Minimum

0 

0 

1.8

0

6.5 

37 

21 

25 

3.5 

.6 

0 

2.9 

0

0

July

4.7 

1.7 

1.9 

1.7

1.7

2.0 

2.4 

1.7 

1.6 

1.4

1.4 

1.4 

1.4 

1.3 

1.4

1.6 

1.3 

1.3 

1.4 

1.4

12 

7.5 

.7 

.3 

.3

.2

0 

0 

0 

0 

0

Aug.

2.9 

4.5 

10 

9.5 

4.6

5 

6.5 

5 

4.9

8

4.7 

6 

4.9 

4.5

5.5

6.5

5.5 

5.5 

6

S.5

6 

5.5 

6 

7 

6.5

7.5 

8 

9 

9 

8 

8.5

Mean

0.15 

.83

75.5

131

269 

269 

103 

204 

21.5 

4.18 

1.80 

6.37 

1.97

78.5

Sept.

7.5 

7 

6 

3.4 

2.0

1.2 

1.6 

1.0 

2.5 

.2

0 

0 

0 

0 

0

0 

0 

0 

0 

0

.7 

2.3 

2.2 

2.3 

2.6

4.1 

3.5 

S.O 

3.2 

2.9

Runoff in 

acre- feet

9.3 

50 

4,640

95,070

16,510 

14,940 

6,350 

12,140 

1,320 

249 

110 

392 

117

56,830

eb. 9, 1942; Pacific war time thereafter.

to standard time, subtract 1 hour.
162 GUADALUPE CREEK BASIN

Alamitos Creek near Edenvale, Calif.

Location.- Water-stage recorder, lat. 37°14'20", long. 121°52'15", In SWi sec. 16, T. 8 

S., R. 1 E., 0.4 mile upstream from mouth and 4 miles southwest of Edenvale. Altitude 

of gage, about 200 feet (from topographic map).

Drainage area.- 35.0 square miles.

Records available.- January 1930 to September 1942.

Average discharge.- 12 years, 21.8 second-feet.

Extremes.- Maximum discharge during year, 815 second-feet Jan. 24 (gage height, 5.24 

feet); minimum, 2.0 second-feet (regulated) Dec. 12.

1930-42: Maximum discharge, 2,670 second-feet Dec. 27, 1931 (gage height, 6.60 

feet), from rating curve extended above 1,800 second-feet; no flow for several months 

each year except 1942.

Remarks.- Records fair. Small diversions above station. Flow regulated by Calero 

Reservoir (capacity, 9,000 acre-feet) and Almaden Reservoir (capacity, 2,500 acrefeet); water released during summer.

Rating .table, water year 1941-42 (gage height, In feet, and discharge, In

second-feet) 

(Shifting-control method used May 11 to June 21 and July 27 to Sept. 30)

2.5 1.2 3.0 26

2.6 2.8 3.1 38

2.7 5 3.2 52

2.8 9 3.3 68

2.9 16 3.5 108

3.7 154

3.9 204

4.1 260

4.3 325

4.5 400

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

24

24

26

27

26

24

24

23

23

23

23

23

23

21

21

23

23

23

21

20

21

20

21

19

16

16

16

16

15

15

15

Nov.

16

17

17

17

17

17

16

16

16

16

16

16

17

20

20

16

15

15

15

15

15

15

15

15

15

15

15

14

15

16

-

Dec.

17

17

17

15

14

5.5

3.5

3.0

2.6

2.5

2.2

2.2

15

26

28

30

15

12

9.5

9.5

9.5

9

9

10

9.5

9.5

14

115

96

37

30

Jan.

24

18

12

13

13

12

10

9

8

7

8

7.5

7

6

a5

4.1

3.9

6

6.5

7

7.5

10

64

379

108

48

196

166

76

44

49

Feb.

26

51

31

31

51

252

154

83

46

28

23

55

63

58

52

48

45

41

38

36

37

34

31

31

28

26

26

24

-

-

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February ...................................

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

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

Uay. n *r .......................................

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

23

22

22

21

20

19

17

16

16

17

54

36

32

231

154

87

65

57

51

44

39

36

33

31

28

27

25

24

23

22

21

Apr.

Secondfoot days

655

480

595.0

18,583.0

1,334.5

1,449

1,313

2,128

595

494.5

547

779

279.1

10,649.1

20

19

21

57

288

188

126

95

70

63

57

54

57

100

79

79

83

78

70

65

60

58

57

54

54

52

48

34

24

18

-

May

18

16

18

25

25

24

23

22

22

21

27

23

21

21

22

21

20

19

17

17

17

16

15

15

18

18

d!7

d!6

d!5

d!4

d!2

Maximum

27

20

115

1,070

379

252

231

288

27

22

23

30

28

379

June

10

12

10

9.5

8.5

8.5

9.5

9.5

12

17

21

18

17

21

21

20

21

19

19

19

19

18

19

19

22

22

22

21

15

15

-

Minimum

15

14

2.2

2.2

3.9

23

16

18

12

8.5

15

20

4.8

2.2

July

15

15

15

15

16

15

15

15

15

15

16

17

18

17

17

17

18

18

17

17

16

16

17

20

23

23

22

21

22

22

22

Aug.

21

22

22

21

20

20

21

24

25

26

25

25

25

25

25

26

26

26

26

27

26

26

27

27

28

30

28

28

27

27

27

Sept.

28

26

20

15

12

7

7

7

6.5

6.5

7

7

7

7.5

7

7

7

7

7

10

12

8

7.5

7.5

7.5

7.5

5.5

5.5

4.8

4.8

-

Mean Runo" i? 

acre-feet

21.1 1,300

16.0 952

19.2 1,180

50.9 36,860

43.0 2,650

51.8 2,870

42.4 2,600

70.9 4,220

19.2 1,180

16.5 981

17.6 1,080

25.1 1,550

9.30 554

29.2 21,120

a No gage-height record; discharge Interpolated, 

d Doubtful gage-height record; discharge interpolated.

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
GUADALUPE CREEK BASIN 163

Los Gatos Creek at Los Gatos, Calif.

Location.- Water-stare recorder and concrete control, lat. 37°13'15", long. 121°59'00",

 irT~SW5 sec. 21, T. 8 S., R. 1 W., about 700 feet upstream from highway bridge at 

Los Gates. Altitude of gage, about 360 feet (from typographic map).

Drainage area.- 40.0 square miles.

Records available.- January 1930 to September 1942.

Average discharge.- 12 years, 45.6 second-feet.

Extremes.- Maximum discharge during year, 2,700 second-feet Jan. 24 (gage height, 9.65

 feet); pronably no flow at times July to Septenber.

1930-42: Maximum discharge, 7,110 second-feet Feb. 27, 1940 (gage height, 14.71 

feet), from rating curve extended above 2,300 second-feet by logarithmic plotting; 

no flov; during part of most years.

Remarks.- Records fair except those for October, November, and July to September, which 

are poor. Several small reservoirs and diversions above station.

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

24

25

26

27

28

29

30

31

Oct.

0.1

.2

.3

.3

.3

.3

.3

.5

.5

1.0

.7

.7

.9

.9

.9

.9

.9

.9

.9

1.2

1.2

1.4

1.5

1.2

1.2

2.4

14

1.7

1.4

2.2

.9

Discharge, in second-feet, water year October 1941 to September 1942

Nov.

0.8

12

7.5

1.0

.7

.7

.8

.7

.8

.8

.7

.7

.8

.9

1.0

1.3

1.2

4.0

7.5

6

5

5

5

5

4.8

4.8

5.5

7

12

10

-

Dec,

7

10

30

11

7

6.5

5.5

5.5

5.5

5.5

5.5

7

9

200

211

190

103

61

28

22

16

14

16

12

16

14

97

299

226

136

102

Jan.

82

66

57

52

48

44

43

43

37

32

30

27

25

22

21

20

20

19

16

15

16

81

376

1,690

932

544

977

560

362

290

233

Feb.

208

382

279

407

726

932

617

427

331

S75

233

208

186

164

150

136

120

111

103

96

95

86

80

77

73

68

63

59

_

-

-

Mar

56

54

51

48

46

43

41

40

40

60

170

93

82

325

229

166

140

120

101

89

80

75

68

63

58

54

50

41

39

37

37

Apr.

39

35

60

188

544

295

210

172

152

131

113

98

170

240

180

192

196

176

162

150

134

127

114

103

95

87

89

87

77

80

-

May

85

69

65

60

54

50

49

47

47

44

63

48

44

41

50

43

40

37

35

33

31

31

29

26

49

37

29

29

27

26

24

June

24

22

18

18

18

17

15

15

18

14

14

12

10

22

15

8

8

7.5

6.5

7.5

6

5

5.5

4.2

4.0

2.9

3.2

2.3

2.2

4.4

-

July

7

.8

.7

.5

2.8

2.9

1.5

6.5

22

17

4.4

2.5

4.4

6

3.3

.6

2.4

2.0

3.1

2.5

.8

.6

2.6

2.5

3.3

4.1

5.5

6

7

6.5

5.5

Aug.

2.7

4.4

4.8

4.4

3.8

4.4

3.6

4.4

3.8

5

5.5

06

c5

 c.2

Sept.

' cO.5

-

Month

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

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

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

Water year 1941-42 ......................

Secondroot-days

41.8

114.0

1,878.0

2,596

1,342

137.3

24,402.7

Maximum

14

12

299

325

544

85

1,690

Minimum

0.1

.7

5.5

37

24

£ 2

-

Mean

1.35

3.80

60.6

83.7

43.3

4.43

67.1

Runoff in 

acre-feet

83

226

3,720

5,150

2,660

48,560

Peak discharge.- Dec. 28 (9 p.m.) 502 sec.-ft.; Jan. 24 (1:30 p.m.) 2,700 sec.-ft.; Jan. 27 (5 

a.m.) 1,350 sec.-ft.; Feb. 6 (5:30 a.m.) 1,420 sec.-ft.; Mar. 14 (10:30 a.m.) 627 sec.-ft.; Apr. 5 

(10 a.m.) 872 sec.-ft.

c Stage-discharge relation affected by backwater; discharge computed on basis of one discharge 

measurement and a study of gage-height record.

Tims baa la; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
164 GUADALUPE CREEK BASIN

Campbell Creek at Saratoga, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°15'15", lone. 122°02'25", 

In Quito Grant, half a mile southwest of Saratoga post office, Santa Clara County. 

Altit'ide of gage, about 500 feet (from topographic map).

Drainage area.- 8.8 square miles.

Records available.- October 1933 to September 1942.

Extremes.- Ilaxinum discharge during year, G20 second-feet Jan. 24 (gage height, 3.80 

feet); no flow part of Nov. 27.

1933-42: Ilaxinum discharge computed, 910 second-feet Feb. 13, 1937, from rating 

curve extended above 430 second-feet; maximum gage height, 5.35 feet Feb. 27, 1940 

(discharge not determined but probably greater than that of Feb. 13, 1937); no flow 

part of each year, except possibly 1940-41.

Remarks.- Records fair. Diversion and regulation above station by San Jose Water Works.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet) 

Oct. 1 to Dec. 13 Dec. 14 to Sept. 30

0.9 0.1

1.0 .8

1.1 2.2

1.2 4.0

1.3 6.1

1.4 8.5

0.9

1.0

1.1

1.2 

1.4

0.7 

1.4 

2.4 

4.0

1.6 

1.8 

2.0 

2.3 

2.6

39

70

118

2.9 198

3.2 310

3.4 400

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

1R

19

20

21

22

24

25

J>fi

27

?R

30

31

Oct.

0.4

.3

.4

.4

.5

.4

. A

.4

.4

.4

.4

.6

.6

.4

.4

.4

.4

.4

.6

1.1

1.1

1.1

.9

.9

1.1

.2

.9

.4

.1

.1

.1

Nov.

0.9

Dec.

0.9

2.1 S.3

1.8

1.5

.9

.9

.9

1.1

1.1

1.1

1.1

.9

1.2

1.1

1.1

.7

1.1

1.1

1.1

.8

.9

1.1

.8

.9

.7

.7

.7

.7

1.9

1.8

-

7.5

2.7

1.9

1.4

1.2

1.1

1.1

1.2

1.2 i.e

2.4

38

46

60

16

9.5

7

6

5.5

5.5

6.5

5.5

8.5

7

17

98

60

37

24

Jan.

18

15

12

11

9

8.5

8.5

8

7.5

7

6.5

6

6

6

5.5

5.5

5.5

5.5

5.5

5

5.5

35

155

373

173

98

156

95

64

55

46

Feb.

39

57

49

78

118

170

107

78

62

52

46

40

36

32

30

28

26

24

22

21

20

19

18

18

17

17

16

16

_

_

-

Month

Water year 1941-42 ......................

Mar.

15

14

14

14

13

13

12

12

12

16

25

17

18

67

52

38

33

30

27

24

22

21

20

19

18

17

16

16

15

14

14

Apr.

14

13

18

65

151

83

59

49

43

40

35

32

45

60

49

55

56

51

48

44

39

36

33

32

30

28

28

26

24

25

-

Secondfoot days

22 P

6,004.6

May

24

22

22

21

20

19

19

18

18

17

20

17

16

16

16

16

15

14

14

12

11

10

10

10

16

13

11

11

10

10

e.5

Maximum

373

June

9

9

8

8

8

7.5

7.5

7

7

6.5

6.5

5.5

6

6

6

6

5.5

5.5

5.5

5.5

5

4.8

4.6

4.4

4.4

4.4

4.2

3.8

3.7

3.5

-

Minimum

3.5

.8

.3

July

3.5

3.2

2.9

2.9

3.2

3.4

2.9

2.7

2.7

2.7

2.6

2.6

2.6

2.4

2.6

2.6

2.7

2.6

2.6

2.6

2.4

2.3

2.2

2.2

2.2

2.1

1.9

2.0

2.2

3.2

4.2

Aug.

2.1

2.2

2.1

1.9

1.9

1.9

1.9

1.8

1.7

1.7

1.7

1.6

1.7

1.6

1.6

1.8

1.6

1.4

1.7

1.4

.3

.3

.6

.3

.3

.4

.3

.3

.3

1.1

1.2

Mean

15.4

5.98

1.60

1.12

16.5

Sept.

1.2

1.2

1.3

1.4

1.3

1.3

1.2

1.3

1.7

1.7

1.4

1.2

1.1

.9

.8

.8

.9

.9

.8

.8

1.0

1.0

.0

.0

.1

.0

.0

.3

.0

.1

~

Runoff in 

acre-feet

17,740

1,310

947

356

164

99

67

11,910

Peak discharge.- Dec. 28 (4 p.m.) 145 sec.-ft.; Jan. 24 (8:30 a.m.) 620 sec.-ft.; Jan. 27 (5 

a.m.) 243 sec.-ft.; Feb. 6 (5 a.m.) 302 sec.-ft.; Mar. 14 (9:30 a.m.) 12V sec.-ft.; Apr. 5 (6:30 

p.m.) 310 sec.-ft.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tin 

To convert war tin standard time, subtract 1 hour.

thereafter.
COYOTE CREEK BASi:i 1RC

165

Coyote Creek near Madrone, Calif.

LOC of i San"Tn^e ^nC?ge g rn C ° rt er> i at ' fT° 10 ' 00 "' long ' 121°37'40", in northwest corner 

or ban jc^e Grant, a quarter of a mile upstrean from highway bridge at mouth of 

rr"i f ' M 5uarter0 ° r^ a mlle d°wistream from Las Aninas Creek, and 2.8 miles northto^og-a-ihicma-l Clara County. Altitude of gage, about 420 feet (from

Drainage area.- 195 square miles.

Records available.- October 1902 to September 1912, December 1916 to September 1942.

Average discharge.- 36 years (1902-12, 1916-42), 78.7 second-feet.

Extremes.- Maximum discharge during year, 2,230 second-feet Feb. 6 (gage height, 8 67 

feet) ^minimum observed, 27 second-feet Dec. 7-12. "^y^, o.o^ 

la-.^9?2' 12 '^ 1 ?16^2; Haximul11 discharge, about 25,000 second-feet probably on Mar. 7, 

1911 (record furnished by Duryea, Haehl & Oilman); no flow at times.

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

large diversions. hlOW rRD-nlat.pd hv Pmrn-t-o Roaci^rr,^^ f ~.-,~.-,^ -t-,, ^^ r\r\r\ n o j. \

, oo,uuu acre xeet);

Rating table, water year 1941-42 (gage height, in feet, and discharge i 

second-feet

3.2 

3.4 

3.6 

3.9 

4.2

27

37

48

72

104

4.6 

5.0 

5.5 

6.0 

6.5

id-feet)

160

234

350

520

740

7.0 

7.5 

8.0

1,000

1,300

1,660

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

28

28

28

28

29

30

30

30

30

30

30

30

30

30

30

30

30

31

32

32

33

32

32

32

32

32

32

31

31

30

30

Nov.

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

-

Dec.

29

29

29

29

28

28

27

27

27

27

27

27

50

^5

100

150

130

125

120

120

120

115

115

115

110

80

110

250

310

240

155

Jan.

125

95

85

75

65

65

60

60

60

60

60

60

60

59

58

58

58

57

57

57

57

63

106

732

380

222

425

480

500

407

336

Feb.

283

310

386

462

850

1,660

1,480

815

536

389

306

255

161

94

105

105

102

97

91

84

92

96

88

81

76

72

68

65

-

-

-

Month

October. ....... ...........................

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

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

Calendar year 1941 ............... ......

January ......... ....................... .

February. ....... .................... ....

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

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

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

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

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

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

September ...... ..... ... .......... . ...

Water year 1941-42 . . .... ..............

Mar.

61

59

57

55

54

52

49

48

47

54

100

116

116

403

672

544

410

323

268

170

96

105

104

98

90

85

80

76

72

69

68

Apr.

67

63

69

133

811

770

473

342

278

247

157

84

121

695

632

445

383

318

274

244

168

86

100

104

102

98

94

93

86

84

-

Secondfoot-days

943

900

2,924

70,451

5,042

9,209

4,601

7,621

1,744

1,596

1,384

1,293

1,111

38 , 368

May

91

86

78

72

68

64

62

60

57

55

66

64

61

57

57

54

52

49

47

46

46

46

46

46

47

46

45

45

44

44

43

Maximum

33

30

310

3,080

732

1,660

672

811

91

68

47

43

41

1,660

June

43

43

43

43

42

42

42

42

41

40

40

40

41

47

52

51

51

57

67

67

67

67

67

67

68

68

68

68

68

54

-

Minimum

28

30

27

87

57

65

47

63

43

40

38

41

34

87

July

58

40

47

47

47

47

47

47

47

46

46

46

46

46

46

46

45

45

44

44

44

44

44

44

43

43

43

43

43

43

43

Aug.

43

43

43

43

42

42

42

42

42

42

42

 42

42

42

42

42

42

41

41

41

41

41

41

41

41

41

41

41

41

41

Mean

30.4

30.0

94.3

193

163

329

148

254

56.3

53.2

44.6

41,7

37.0

105

Sept.

41

41

41

41

41

40

40

40

40

40

38

36

36

36

36

36

36

36

36

35

35

35

35

35

35

34

34

34

34

34

-

Runoff in 

acre-feet

1,870

1,790

5,800

139,700

10,000

18,270

9,130

15,120

3,460

3,170

2,750

2,560

2,200

76,120

Note.- No gage-height record Nov. 3, 4, Nov. 6 to Dec. 1, Dec. 3-8, Dec. 10 to Jan. 13, Jan. 15; 

discharge computed on basis of three discharge measurements, and unpublished records of the Santa 

Clara Valley Water Conservation District.

Tine basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 1 

convert war tino to standard time, subtract 1 hour.
155 COYOTE CREEK BASIN

Coyote Creek near Edenvale, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°16'15", long. 121°47'55", 

at east boundary of Santa Teresa Grant, at "The Narrows," l£ miles northeast of 

Edenvale, Santa Clara County, and 7 miles south of San Jose. Altitude of gage, 

about 190 feet (from topographic map).

Drainage area.- 229 square miles.

Records available.- October 1916 to September 1942.

Average discharge.- 26 years, 41.7 second-feet; affected by storage and spreading since 

1936.

Extremes.- Maximum discharge during year, 2,420 second-feet Jan. 24 (gage height, 5.60 

feet); no flow at times Dec. 8-12.

1916-42: Maximum discharge, 10.000 second-feet (unregulated) Feb. 10, 1922 (gage 

height, 12.8 feet, from floodmarks), from rating curve extended above 4,900 secondfeet parallel to 1917 curve defined by current-meter measurements to 8,400 second-feet; 

no flow for several periods in each year.

Remarks.- Records good. Water pumped from wells along creek above station for irrigation. Flow regulated by Coyote Reservoir (capacity, 30,000 acre-feet) and by detention in percolating reservoir 6 miles above station; water released during summer.

Rating tables, water year 1941-42 (gage height, In feet, and discharge. In second-feet)

Oct. 1 to Jan. 13

2.2

2.3

2.4

2.5

2.3

5

2.7 

2.9 

3.1 

3.3

16

40

80

136

3.5 

3.7 

3.9

206

290

400

Jan. 14 to Sept. 30

3.3 136 3.8 380 4.4 890

3.4 172 4.0 530 4.7 1,210 

3.6 260 4.2 705 5.0 1,580 

Mote.- Same as preceding table below 3.3 

feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

4.1

3.8

3.5

11

22

18

14

11

9.5

9.5

10

10

9

9

9.5

9.5

9

8.5

10

9.5

11

11

11

2.8

5.5

9.5

11

11

11

9.5

9

Nov.

9.5

11

9.5

2.2

.9

.8

.8

.8

.8

.8

.9

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

.7

, .7

.7

.7

.7

.7

.7

-

Dec.

0.7

.8

.9

.7

.7

.7

.7

.4

.2

.5

.3

.5

.8

.9

.9

.9

6.5

39

49

58

65

65

67

69

71

45

29

169

326

218

133

Jan.

112

85

69

58

53

49

45

45

45

42

42

40

40

40

40

39

39

39

37

37

37

42

55

788

668

251

380

436

450

367

304

Feb.

251

271

328

367

714

1,480

1,430

871

572

415

315

255

189

109

112

112

109

103

93

88

93

98

90

85

78

71

67

60

-

-

-

Mar.

54

53

49

45

44

44

39

36

33

36

73

101

103

338

833

651

466

354

276

214

112

112

112

103

96

88

83

76

71

65

60

Apr.

58

54

54

96

758

990

581

394

298

251

201

106

106

538

732

506

415

328

276

242

197

101

101

103

103

98

96

96

88

83

-

May

85

85

76

69

65

58

54

51

47

44

49

56

53

47

47

44

40

37

34

32

29

27

26

26

27

29

26

25

24

23

23

June

22

22

20

18

16

14

16

15

12

11

8

5

3.5

7

7

5

7

8.5

13

18

22

23

23

24

24

24

27

32

30

29

-

July

12

16

21

23

23

24

24

24

23

21

20

20

19

22

22

21

21

21

22

22

21

23

24

25

24

24

24

24

24

24

23

Aug.

23

23

23

23

22

22

22

21

21

21

21

20

20

20

20

19

19

19

18

18

18

17

17

17

17

16

16

16

16

17

17

Sept.

17

17

17

17

17

17

17

17

17

17

18

15

15

15

15

15

14

13

13

13

13

13

13

13

13

13

13

12

12

11

-

Month

Water year- 1941-42 ......................

Secondfoot-days

302.7 

51.3 

1,420.1

62,892.2

4,774 

8,826 

4,820 

8,050 

1,358 

506 

681 

599 

442

31,830.1

Maximum

22 

11 

326

2,730

788 

1,480 

833 

990 

85 

32 

25 

23 

18

1,480

Minimum

2.8 

.7 

.2

.2

37 

60 

33 

54 

23 

3.5 

12 

16 

11

.?.

Mean

9.76 

1.71 

45.8

172

154 

315 

155 

268 

43.8 

16.9 

22.0 

19.3 

14.7

87.2

Runoff in 

acre-feet

600 

102 

2,820

124,800

9,470 

17,510 

9,560 

15,970 

2,690 

1,000 

1,350 

1,190 

877

63.140

Mote.- No gage-height record July 29 to Aug. 25; discharge Interpolated between limits of known 

range of stage.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

convert war time to standard time, subtract 1 hour.
ALAMEDA CREEK BASIN

Alameda Creek near Niles, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°35'15", long. 121°57'35", 

in Arroyo de la Alameda Grant, an eighth of a mile upstream from highway bridge and 

li miles northeast of Niles, Alameda County. Altitude of gage, about 100 feet (from 

topographic map).

Drainage area.- 633 square miles.

Records available.- October 1916 to September 1942.

Average discharge.- 25 years (1916-19, 1920-42), 89.7 second-feet.

Extremes.- Maximum discharge during year, 5,510 second-feet Jan. 25 (gage height, 8.90 

feet); no flow Oct. 2-7 and 9-18.

1916-42: Maximum discharge, 13,900 second-feet Feb. 10, 1922 (gage height, 12.44 

feet, site and datum then in use), from rating curve extended above 7,600 second-feet; 

no flow during periods in 1918, 1924-35, 1941, 1942, and possibly 1920.

Remarks.- Records good except those below 3 second-feet, which are fair. Flow regulated 

by Calaveras Reservoir (capacity, 96,900 acre-feet). 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 1941-42 (gage height, in feet, and discharge, in

second-feet) 

(Shifting-control method used June 21 to Sept. 27)

1.6

1.7

1.8

1.9

2.0 

2.2

.6 

1.3 

2.7 

6.3

2.4 

2.6 

2.8 

3.0 

3.2 

3.4

11.5

18.5

26

44

160

305

515

790

1,100

6.0 1,800

6.5 2,300

7.0 2,860

7.8 3,880

105 5.6 1,430 

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

 3

4

5

6

7

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.

0.1

0

0

0

0

0

0

.1

0

0

0

0

0

0

0

0

0

0

.1

.1

.1

.1

.1

.1

.1

.2

.5

.4

.4

.4

.3

Nov.

0.4

1.2

1.2

1.0

1.0

.9

.8

.8

.9

.9

.9

1.0

1.0

1.0

1.0

1.1

1.1 1.1 1.1 1.1

1.1 1.1

1.1

1.1 1.1

1.1 1.1

1.1

1.2

1.2

-

Dec.

1.2

1.2

3.6

2.6

5

5

5

5

5.5

5.5

6

6

29

17

15

76

57

23

15

14

14

13

15

16

27

40

62

375

1,440

769

411

Jan.

253

169

145

91

71

60

54

55

53

47

42

40

37

35

34

34

33

32

32

36

75

125

474

2,370

3,860

1,750

3,000

2,080

1,040

762

678

Feb.

534

548

650

880

1,680

3,400

2,140

1,200

842

699

636

528

450

406

385

370

355

341

332

328

328

328

310

310

305

297

293

289

-

-

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................... ............

February. ..................................

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

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

May

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

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

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

September. ................................

Water year 1941-42 ......................

Mar.

281

277

277

277

273

269

265

261

257

265

355

323

314

375

608

685

548

461

406

360

328

314

305

297

285

281

273

269

265

261

261

Apr.

261

257

265

305

461

880

554

450

370

365

350

323

355

762

567

497

528

461

411

380

355

332

310

277

265

257

261

£65

261

197

-

Secondfoot-days

3.1

30.7

3,479.6

100,810.9

17,567

19,164

10,276

11,582

1,905

455

56.2

20.8

25.6

64,565.0

May

110

97

87

82

73

68

65

63

62

65

115

82

67

59

55

53

51

48

60

67

62

40

59

55

53

53

42

32

29

26

25

Maximum

0.5

1.2

1,440

4,740

3,860

3,400

685

880

115

24

8

1.2

1.2

3,860

June

24

23

22

22

21

20

20

19

18

18

17

15

15

14

14

14

14

14

13

12

12

12

11

11

11

11

10

10

9

9

-

Minimum

0

.4

1.2

0

32

289

257

197

25

9

1.0

.4

.7

0

July

8

.5

.9

.6

.9

.0

.0

.7

.1

.0

.0

.4

.3

.4

.0

.1

.0

.0

.0

.1

.1

.2

.2

.2

.0

.0

.0

.0

.1

.2

.2

Aug.

1.2

1.2

1.2

1.0

.9

.9

.9

.8

.7

.7

.7

.7

.6

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.6

.6

.7

.7

.7

.8

Mean

0.10

1.02

112

276

567

684

331

386

61.5

15.2

1.81

.67

.85

177

Sept.

0.8

.8

.9

.0

.0

.0

.0

.0

.2

.2

.1

.0

.9

.8

.7

.7

.7

.7

.7

.7

.7

.7

.7

.8

.9

.8

.8

.7

.8

.8

-

Runoff in 

acre-feet

6.1

61

6,900

200,000"

34,840

38,010

20,380

22,970

3,780

902

111

41

51

128,100

Peak discharge.- Dec. 29 (5 a.m.) 1,620 sec.-ft.; Jan. 25 (5:30 

(2 p.m.) 3,510 sec.-ft.; Feb. 6 (7 a.m.) 4,540 sec.-ft.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; 

To convert war time to standard time, subtract 1 hour.

m.) 5,510 sec.-ft.; Jan. 27 

Pacific war time thereafter.
L6 8 , KERN RIVER BASIN

Kern River near Kernvllle, Calif.

Location.- Water-stage recorder, lat. 35U 56', long. 118°29', in NEi sec. 14 T. 23 S., R. 

32 E., 3 miles upstrean from Salmon Creek and 15 miles north of Kernville. Altitude 

of gage, about 3,550 feet (from topographic map).

Drainage area.- 845 square miles.

Records available.- January 1912 to September 1942.

Average discharge.- 30 years, 717 second-feet, combined flow of Kern River near Kernville 

and iZern River No. 3 Canal.

Extremes.- Maximum discharge during year, 3,400 second-feet June 6 (gage height, 9.57 

feet); minimum, 1.1 second-feet Aug. 31.

1912-42: Maximum discharge, 9,690 second-feet (unregulated) Jan. 17, 1916 (gage 

height 8.8 feet, datum then in use), from rating curve extended above 4,100 secondfeet; no flow at times during period July 31, 1924, to Feb. 7, 1925.

Remarks.- Records good except those below 40 second-feet, which are fair. Kern River 

No. 3 Canal (p.171) diverts water 1 mile above station.

Cooperation.- Water-stage recorder graph and results of five discharge measurements furnlshed by Southern California Edison Co. Ltd., in connection with a Federal Power 

Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1.3

1.5

1.4

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.5

1.5

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.7

1.7

1.7

4.3

8

18

10

57

PI

19

8

5

Nov.

4.6

15

40

34

22

15

9

4.7

2.4

2.1

2.2

2.2

2.2

2.1

2.3

2.5

3.0

3.0

3.2

3.2

3.2

3.0

2.9

3.0

3..0

3.2

3.2

3.2

3.5

3.3

Dec.

2.9

4.2

200

114

2.4

2.1

1.9

1.8

1.7

1.9

1.7

1.6

1.8

1.8

1.9

1.7

1.6

1.6

1.6

1.5

1.5

1.5

1.9

1.8

1.6

1.9

1.8

1.9

2.5

3.2

2.8

Jan.

2.5

2.3

2.2

2.2

2.1

2.3

2.4

2.9

2.9

2.7

2.7

2.8

2.8

2.7

2.5

2.5

2.5

2.4

2.3

2.2

2.1

2.1

2.3

2.3

379

162

132

136

7

3.0

2.5

Feb.

2.4

2.5

3.2

2.4

2.4

5

2.4

2.2

2.1

2.1

1.9

1.9

1.8

2.3

1.7

1.8

1.6

1.9

1.8

1.8

1.7

1.8

1.7

1.7

1.8

1.8

1.7

1.7

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

1.6

1.6

1.6

1.9

2.2

2.1

1.9

5

45

70

306

271

183

90

68

95

93

114

103

81

57

74

88

85

45

30

27

44

88

143

230

Apr.

302

379

486

V40

554

472

397

428

455

641

624

566

688

786

662

662

718

620

692

836

818

818

898

832

874

884

855

772

657

607

-

Secondfoot-days

212.9

206.2

"572 1

308,407.3

900.2

59.1

2,457.9

19 743

40*712

62,500

18,732

90.0

57.4

146,042.8

May

611

538

550

649

727

850

998

1,140

1,280

1,240

1,190

1,010

923

688

850

781

809

888

1,070

1,410

1,880

2,210

2,280

2,330

2,650

2,490

1,980

1,860

1,620

1,480

1,530

Maximum

57

40

200

5,140

379

5

306

898

2,650

3,080

1,270

14

2.2

3,080

Time basis: Pacific standard time prior to 2 a.m.. Feb. 9. 1942

June

1,720

1,8SO

1,780

1,910

2,290

3,080

2,970

2,130

2,290

2,670

2,820

2,760

2,560

2,470

2,650

2,480

2,470

2,540

2,330

2,040

1,790

1,790

1,820

1,690

1,580

1,430

1,170

1,080

1,140

1,170

-

Minimum

1.3

2.1

1.5

1.2

2.1

1.6

1.6

302

538

1,080

28

1.6

1.6

1.3

July

1,160

1,150

1,190

1,200

1,270

1,170

1,060

983

923

822

790

653

570

582

603

586

490

409

354

334

317

348

307

273

268

297

242

178

114

61

28

Aug.

7

2.6

2.2

2.2

3.0

2.4

1.9

1.9

1.8

14

13

2.8

2.4

2.4

1.9

2.2

1.9

1.6

1.8

1.8

1.8

1.6

1.9

1.6

1.6

- 1.6

1.6

2.1

1.9

2.1

1.4

Mean

6.87

6.87

12.0

846

29.0

2.11

79.3

658

1,313

2,083

604

2.90

1.91

400

Sept.

1.6

1.6

1.6

1.9

2.2

1.8

1.8

1.8

L.9

2.2

2.1

2.2

1.9

1.9

2.1

2.1

2.1

2.1

1.8

1.9

1.9

l.B

1.6

1.9

1.9

1.9

1.9

1.9

1.9

2.1

Runoff in 

acre-feet

422

409

738

611,700

1,790

117

4,880

39,160

80,750

124,000

37,150

179

114

289,700

; Pacific war time thereafter.
KERN RIVER BASIN 169

Combined discharge, in cond-feet, of Kern River and Kern River No. 3 Canal near Kernville, 

water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

335

330

327

323

329

331

332

333

329

323

322

320

324

321

317

313

308

306

306

323

34S

340

342

352

364

356

399

392

362

347

346

Nov.

348

360

388

383

371

363

356

353

348

341

334

331

329

324

320

318

328

301

290

292

288

310

295

292

297

305

306

306

344

4C6

-

Dec.

337

329

545

487

411

402

382

366

366

.177

371

349

347

348

414

402

393

358

355

344

332

320

344

305

288

330

342

324

358

417

437

Jan.

426

391

405

414

396

3°6

392

411

396

395

408

419

427

431

418

414

402

396

387

383

381

391

390

396

951

779

733

735

575

538

502

Feb.

484

512

559

507

524

568

543

504

474

474

452

451

436

 402

395

418

412

408

397

392

387

402

394

403

392

396

392

384

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 . . ...................

January ....................................

February. ..................................

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

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

Hay. .......................................

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

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

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

September ..................................

Water year 1941-42 ......................

Mar.

393

418

428

452

491

537

565

592

633

660

905

870

782

689

664

693

691

711

700

680

665

572

587

684

644

628

626

643

586

740

828

Apr.

900

977

1,080

1,340

1,150

1,070

996

1,030

1,050

1,240

1,220

1,180

1,280

1,380

1,260

1,250

1,310

1,210

1,280

1,420

1,400

1,400

1,480

1,420

1,460

1,470

1,440

1,350

1,240

1,190

-

Secondfoot-days

10,393

9,927

11,480

485,456

14,478

12,462

20,057

37,473

58,330

78,830

36,723

14,068

7,613

311,834

May

1,190

1,120

1,130

1,220

1,300

1,420

1,560

1,710

1,850

1,810

1,760

1,580

1,490

1,450

1,420

1,350

1,380

1,460

1,540

1,980

2,440

2,780

2,850

2,900

3,220

3,050

2,540

2,420

2,180

2,040

2,090

Maximum

399

406

545

5,170

951

568

905

1,480

3,220

3,410

1,850

593

290

3,410

June

2,280

2,440

2,330

2,460

2,820

3,100

3,050

2,730

2,890

3,260

3,410

3,350

3,150

3,050

3,240

3,070

3,060

3,130

2,920

2,620

2,370

2,370

2,400

2,270

2,160

2,010

1,750

1,660

1,720

1,750

-

Minimum

306

288

288

288

381

384

393

900

1,120

1,660

609

299

224

224

July

1,740

1,730

1,770

1,780

1,850

1,750

1,640

1,570

1,510

1,400

1,370

1,240

1,150

1,160

1,180

1,170

1,070

988

933

913

896

927

886

852

847

876

822

758

694

642

609

Aug.

581

547

522

507

514

522

514

513

518

582

593

557

559

533

493

478

476

453

429

411

391

372

358

359

353

347

332

322

320

313

299

Mean .

335

331

1,330

457

445

647

1,249

1,882

2,628

1,185

454

254

854

Sept.

290

285

278

274

271

268

264

261

261

266

273

289

285

271

259

252

247

245

242

241

239

237

233

231

229

226

224

224

224

224

-

Runoff in 

acre-feet

20,610

19,590

22,770

962,900

28,720

24,720

39 , 780

74,230

115,700

156,400

72,840

27,900

15,100

618,600

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.

530350 O - 43 - 12
: 70 ?ERN RIVEK BASIN

Kern River near Bakersfield, Calif.

Location.- Water-stage recorder and wooden control, lat. 35°25'54", long. 118°5G'43", in 

SWt sec. 2, T. 29 S., R. 28 E., at mouth of lower canyon, 5 miles northeast of Pakersfield. Altitude of gage, about 470 feet (fron topographic nap).

Drainage area.- 2,420 square miles.

Records available.- October 1893 to September 1942.

Average discharge.- 47 years (1893-1906, 1908-42), 982 second-feet.

Extremes.- Maximum discharge during year, 4,060 second-feet June 12 (gage height, 4.40 

feet); minimum, 237 second-feet Sept. 30.

1896-42: Maximum discharge, 20,000 second-feet Feb. 7, 1937 (gage height, 9.12 

feet); minimum, 57 second-feet (regulated) in November 1924.

Remarks.- Four power plants and nany diversions for irrigation above station.

Cooperation.- Complete record except runoff in acre-feet and annual figures, furnished 

by Kern County Land Co.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

390

381

380

381

383

386

395

406

410

414

412

416

403

394

399

398

396

393

391

400

405

427

438

452

458

481

510

510

548

540

533

Nov.

512

494

F02

510

519

528

516

514

507

491

474

464

458

457

451

447

441

447

454

443

441

429

424

429

427

422

418

425

444

459

-

Dec.

577

528

520

632

811

692

627

605

587

600

667

684

626

604

588

659

699

666

623

606

594

579

565

580

577

546

567

579

610

636

736

Jan.

757

728

654

646

665

661

647

646

690

723

723

731

754

754

752

758

753

734

699

678

655

653

680

695

699

1,586

1,357

1,252

1,242

1,028

925

Feb.

850

824

827

875

845

843

873

872

828

797

768

750

728

718

676

658

647

667

659

651

641

660

674

660

659

654

646

640

_

.

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February. ..................................

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

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

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

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

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

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

September. .................................

Water year 1941-48 .......... ..........

Mar.

633

635

650

666

713

739

788

820

841

862

893

1,135

1,199

1,156

1,121

1,090

1,137

1,158

1,189

1,174

1,131

1,076

1,056

1,032

1,028

989

934

904

883

902

950

Apr.

1,011

1,098

1,158

1,341

1,717

1,655

1,565

1,449

1,435

1,502

1,849

1,881

1,883

1,972

2,102

2,000

2,004

2,057

1,976

2,07J5

2,23S

2,28B

2,341

2,424

2,350

2,390

2,386

2,320

2,193

2,111

-

Secondfoot days

May

1,915

1,908

1,821

1,801

1,887

1,930

2,051

2,198

2,380

2,524

2,500

2,402

2,216

2,074

1,976

1,955

1,823

1,770

1,887

2,073

2,459

2,926

3,273

3,380

3,578

3,800

3,532

3,167

3,011

2,759

2,668

Maximum

555

536

892

8,523

1,783

896

1,219

2,454

3,923

4,060

2,152

679

348

4,060

June

2,708

2,826

2,899

2,833

3,045

3,378

3,570

3,541

3,291

3,524

3,745

3,821

3,686

3,520

3,484

3,595

3,394

3,383

3,347

3,100

2,847

2,655

2,632

2,608

2,459

2,362

2,195

1,935

1,851

1,886

-

Minimum

378

417

501

337

563

635

632

981

1,772

1,794

679

343

237

237

July

1,895

1,894

1,903

1,963

1,983

2,037

1,927

1,812

1,745

1,669

1,581

1,518

1,345

1,225

1,225

1,258

1,247

1,164

1,091

1,024

980

959

968

964

937

865

876

832

780

738

699

Aug.

662

630

600

575

551

536

547

544

541

539

556

580

580

566

560

524

507

486

472

456

443

437

420

397

381

380

374

364

358

348

353

Mean

427

465

618

1,935

804

735

951

1,892

2,440

3,004

1,326

493

277

1,119

Sept.

341

333

319

315

308

304

297

293

283

285

286

283

292

292

289

282

269

262

248

250

256

259

259

256

249

245

245

242

241

237

-

Runoff in 

acre-feet

26,250

27,660

38,020

1,401,000

49,440

40,830

58,490

112,600

150,000

178,800

81,530

30,280

16,500

810,400

Note.- The figures of maximum &nd minimum discharge as shown for each month represent the instantaneous values.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
KERN RIVER BASIN 171 

Kern River No. 3 Canal near Kernville, Calif.

Location.- Water-stage recorder, lat. 35°54', long. 118°28', in NEi sec. 25, T. 23 S., R. 

32 E., 4 miles downstream from intake and 12 miles north of Kernville. Altitude of 

gage, about 3,590 feet (from topographic map).

Records available .Wlarch 1921 to September 1942. 

Average discharge.- 21 years, 362 second-feet.

Extremes.- Maximum daily discharge during year, 601 second-feet Jan. 27; mininun, 24 

second-feet June 6.

1921-42: Maximum daily discharge, 609 second-feet Hay ZB, 1938; no flow at times.

Remarks.- Records excellent. Canal diverts froirf left bank of Kern River in sec. 12, T. 

23 S., R. 32 E. Water is used for power and returned to river 8 miles below station.

Cooperation.- Water-stage recorder graph and results of twelve discharge measurements 

furnished by Southern California Edison Co. Ltd., in connection with a Federal Power 

Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

334

326

326

322

328

330

331

332

32S

322

320

319

322

319

315

311

307

304

305

321

340

338

338

344

346

?46

342

?41

343

339

340

Nov.

343

345

348

349

349

348

347

348

346

339

332

329

327

322

318

315

325

298

287

289

285

307

292

289

294

302

303

303 "*41

403

-

Dec.

334

325

345

373

409

400

380

364

364

375

369

347

345

346

412

400

391

356

353

343

330

318

342

303

286

328

340

322

356

414

434

Jan.

423

389

403

412

394

394

390

408

393

392

405

416

424

428

415

411

400

394

385

381

379

389

388

394

572

597

601

599

568

535

500

Feb.

482

510

556

505

522

563

541

502

472

472

450

449

434

400

393

416

410

406

395

390

385

400

392

401

390

394

390

382

.

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February. ..................................

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

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

Unv nay ........................................

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

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

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

Septembe r ..................................

Water year 1941-42 ......................

Time basis: Pacific standard time tirior

Mar.

391

416

426

450

489

535

563

587

588

590

599

599

599

599

596

598

598

597

597

599

598

598

599

599

599

598

599

599

59S

597

598

Apr.

598

59S

598

598

599

598

599

599

59S

597

597

597

596

594

594

590

588

587

586

584

584

587

585

585

584

583

580

578

578

579

-

Secondfoot-day S

10,181

9,723

11,104

177,001

13,579

12,402

17,598

17,718

17,583

16,341

18,006

13,976

7,553

165,764

May

578

577

576

576

574

567

567

567

567

567

566

565

565

565

567

569

569

567

567

565

565

568

569

568

565

564

563

562

561

559

55S

Maximum

346

403

434

670

601

563

599

599

578

598

584

580

288

601

June

556

556

554

552

526

24

7S

598

596

594

594

594

594

593

591

590

589

586

5S6

585

584

583

582

581

580

580

579

575

580

581

-

Minimum

304

2S5

286

0

379

382

391

578

558

24

579

298

222

24

July

582

582

582

583

583

584

584

583

583

582

582

582

581

581

580

580

579

579

579

579

579

579

579

579

579

579

580

580

580

581

581

Aug.

574

544

520

505

511

520

512

511

516

568

580

554

557

531

491

476

474

451

427

409

389

370

356

357

351

345

330

320

318

311

298

Mean

32S

324

358

485

438

443

568

591

567

545

581

451

252

454

.0 2 a.m., Feb. 9, 1942; Pacific war time the

Sept.

288

283

276

272

269

266

262

259

259

264

271

287

283

269

257

250

245

243

240

239

237

235

231

229

227

224

222

222

222

222

-

Runoff in 

acre-feet

20,190

19,290

22,020

351,100

26,930

24,600

34,910

35,140

34,880

32,410

35,710

27,720

14,980

328,800

reafter.

To convert war time to standard time, subtract 1 hour
172 KERW RIVER BASIN

Borel Canal at Tllley Creek, Calif.

Location.- Water-stage recorder, lat. 35°42', long. 118°27', In 1JWJ sec. 4, T. 26 S., 

R. 33 E., at point where canal crosses Tllley Creek, three-quarters of a mile south 

of Kernvllle. Altitude of gage, about 2,570 feet (from topographic nap).

Records available.- January 1910 to September 1914, October 1925 to September 1942. 

Average discharge.- 17 years (1925-42), 354 second-feet.

Extremes.- Maximum dally discharge during year, 576 second-feet Mar. 12; rilnlmun dally, 

18 second-feet May 16.

 1925-42: Maximum dally discharge, 605 second-feet June 3-5, 1927, and May 22, 

1936; no flow at times.

Remarks.- Records excellent. Canal diverts water from Kern River half a mile below Kernvllle to supply Borel hydroelectric plant of Southern California Edison Co., Ltd., 10 

miles below station, at which point water Is returned to Kern River.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished by 

Southern California Edison Co., Ltd., In connection with a Federal Power Commission 

project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

309 

307 

304 

301 

312

311 

316 

314 

314 

307

307 

310 

314 

313 

308

299

300 

296 

301 

309

335 

339 

338 

349 

361

368 

367 

428 

391 

368 

355

Nov.

356 

361 

374 

387 

380

370 

362 

355 

348 

336

329 

333 

323

318 

318

309 

320 

309 

286 

290

286 

3OO 

298 

289 

293

302 

308 

308 

321 

455

Dec.

366 

345 

377 

552 

482

444 

409 

385 

378 

396

408 

373 

365 

355 

432

466 

448 

390 

386 

373

366 

341 

354 

341

307

342 

360 

372 

373 

473 

5OO

Jan.

474 

427 

439 

452 

437

428 

418 

447 

443 

435

451 

468

476 

481 

470

465 

448 

434 

427 

415

411 

415 

431 

424 

521

550 

559 

565 

571 

571 

571

Feb.

572 

570 

568 

568 

570

568 

568 

560 

556 

552

528 

513 

499 

455 

442

464 

459 

451 

435 

429

417 

454 

429 

443

434

435 

428 

421

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

ffa

lendar year 194

h. .....................................

ember. .................................

ter year 1941-42 .....................

Mar.

421 

450 

463 

486 

529

556 

556 

556 

556 

562

572

576 

574 

574 

572

672

572 

572 

572 

572

574 

572 

572

572 

574

572 

572 

572 

574 

-574 

574

Apr.

574 

574 

572 

572 

571

571 

571 

571 

571 

571

571 

571 

571 

571 

571

571 

571 

572 

572 

572

572 

571 

571 

571 

571

571 

571 

571 

570 

571

Secondfoot-days

10,151 

9,924 

12,259

171,728.2

14,513 

13,788 

17,165 

17,141 

16,340 

16,581 

17,250 

13,516 

7,098

165,726

May

571 

571 

572 

572 

572

572 

571 

571 

571 

571

570 

570 

570 

571 

552

18 

90 

555 

553 

549

546 

546 

546 

546 

546

547 

549 

550 

550 

551 

551

Maximum

428 

455 

552

584

571 

572 

576 

574 

572 

556 

558 

557 

276

576

June

552 

551 

551 

551 

552

552 

551 

550 

551 

552

552 

552 

552 

553 

553

553 

553 

553 

553 

553

553 

553 

555 

553

553

555 

553

555 

555 

556

Minimum

296 

286

307

1.1

411 

417 

421 

570 

18 

550 

555 

288 

207

18

July

556 

557 

556 

556 

556

556 

556 

555 

555 

555

555 

556 

556 

556

557

553

557 

557 

557 

557

557 

557 

557 

558 

557

557 

557 

557 

557 

556 

556

Aug.

557 

539 

515 

496 

493

504 

497 

493 

497 

540

553 

545 

533 

523 

483

461 

455 

437 

417 

397

373 

354 

340 

334 

332

327 

318 

307 

306 

302 

288

Mean

327 

331 

395

470

468 

492 

554

571 

527 

553 

556 

436 

237

454

Sept.

276 

269 

265 

256 

252

251 

244 

238 

239 

240

245 

262 

271 

256 

244

237 

234 

231 

228 

226

224 

226 

220 

212 

209

209 

207 

208 

209 

210

Runoff in 

acre-feet

20,130 

19,680 

24,320

340,600

28,790 

27,350 

34,050 

34,000 

32,410 

32,890 

34,210 

26,810 

14, O8O

328,700

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.

To convert war time to standard time, subtract 1 hour.
KERN RIVER BASIN 173

South Fork of Kern River near Onyx, Calif.

Location.- Water-stage recorder, lat. 35°44', long. 118°10', In SWi sec. 24, T. 25 S., 

R. 35 E., three-quarters of a mile north of Kernvllie-Walker Pass road, 1.4 miles 

upstream from Canebrake Creek, and 5 miles northeast of Onyx. Altitude of gage, 

about 2,900 feet (from topographic map).

Drainage area.- 531 square miles.

Records available.- September 1911 to August 1914, January 1919 to September 1942.

Average discharge.- 21 years (1911-13, 1919-25, 1929-42), 112 second-feet.

Extremes.- Maximum discharge during year, 982 second-feet Apr. 23 (gage height, 3.99 

feet); minimum, 16 second-feet Aug. 24, 25, 27, 28, Sept. 1-6, 8.

1911-14, 1919-42: Maximum discharge, 3,450 second-feet Mar. 2, 1938 (gage height, 

6.69 feet), from rating curve extended above 1,900 second-feot; maximum gage height, 

7.1 feet Jan. 25, 1914, site then In use; no flow several days In July and August 

1929 and September 1934.

Remarks.- Records fair December to March; good for October, November and April to

September. Lowell and Thomas Irrigation ditches divert about 2,000 acre-feet yearly 

above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

,

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

35

34

34

35

36

36

37

38

37

36

37

38

40

38

37

36

40

44

46

52

65

63

72

82

82

82

90

91

84

78

70

Nov.

72

78

84

80

76

70

69

66

65

65

63

63

65

62

61

61

62

57

42

40

39

45

44

43

45

52

56

62

73

99

-

Dec.

82

80

116

107

62

65

63

62

63

96

101

78

69

68

76

84

76

65

63

63

59

49

59

48

33

48

52

66

72

70

62

Jan.

61

45

50

59

63

76

79

96

90

96

109

110

110

117

109

109

101

94

90

91

85

109

88

101

243

218

175

177

124

117

109

Feb.

105

105

109

101

102

110

105

94

86

91

84

84

78

73

65

80

78

80

78

76

79

80

69

76

75

75

78

75

_

-

-

Mar.

75

79

84

65

90

101

104

109

117

129

200

182

171

150

129

164

187

207

200

187

182

182

187

169

180

173

169

175

184

200

227

Apr.

253

295

366

468

425

398

352

377

413

555

516

494

550

642

575

593

654

593

674

798

777

735

840

707

721

707

654

575

507

472

-

May

472

456

440

507

525

530

540

545

545

520

494

460

429

406

391

370

359

356

359

363

377

388

391

380

380

377

356

339

316

310

297

June

282

270

262

253

245

239

234

229

221

216

209

197

190

183

177

174

166

155

147

141

136

130

127

120

115

107

103

102

97

92

-

July

88

82

79

75

71

67

63

60

55

53

53

52

49

48

47

46

45

44

43

42

40

30

37

37

35

40

36

32

31

29

26

Aug.

28

27

27

21

19

19

18

17

18

20

21

22

22

20

19

18

17

18

22

23

21

21

18

16

16

17

16

16

17

17

17

Sept.

16

16

16

16

16

16

17

16

17

17

18

19

20

20

19

18

17

17

18

18

18

18

18

18

18

19

19

19

19

20

-

Month

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

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

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

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

Water year 1941-42 ......................

Secondfoot-days

2,157

121,817

2 391

53,802

Maximum

116

2,620

840

Minimum

33

29

16

Mean

69.6

334

147

Runoff in 

acre-feet

3,690

4,280

241,600

6,550

106,700

Time baa la; Pacific atandard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to atandard time, subtract 1 hour.
174 KERN RIVER BASIN

South Fork of Kern River at Isabella, Calif.

Location,.,- Water-stage recorder, lat. 55°40', long. 118°28', in NWi sec. 20, T. 26 S., R. 

33 E., at Isabella, a quarter of a mile upstream from mouth. Datum of gage is 2,484.3 

feet above mean sea level (from river-profile survey).

Drainage area.- 985 square miles.

Records available.- October 1910 to September 1913, January 1929 to September 1942.

Average discharge.- 13 years (1929-42), 108 second-feet.

Extremes,- Maximum discharge during year, 748 second-feet Apr. 24 (cage height, 4.15 

feet); minimum, 8 second-feet Aug. 27.

1929-42: Maximum discharge, 4,100 second-feet Feb. 7, 1937 (gage height, 6.92 

feet), from rating curve extended above 1,600 second-feet, verified by velocity-area 

study; minimum, 0.3 second-foot July 26, 1931.

Remarks.- Records fair. Many diversions above station for irrigation; considerable return flow.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

18

18

18

18

18

19

19

19

19

19

19

19

19

20

20

19

23

24

24

25

26

24

26

26

51

68

74

79

81

79

76

Nov.

75

78

76

79

80

79

76

76

76

' 76

71

69

63

59

60

60

64

62

61

61

60

59

60

59

56

54

53

53

55

62

-

Dec.

72

71

79

100

110

101

103

103

102

111

135

124

116

113

111

115

115

111

106

106

106

104

103

104

99

98

103

104

120

121

122

Jan.

118

112

105

106

109

111

116

121

125

125

128

132

135

136

135

132

133

131

128

126

125

125

129

126

139

217

196

192

178

158

152

Feb.

146

145

146

144

140

144

146

144

139

138

138

133

135

131

128

124

131

128

125

122

124

129

126

126

128

126

126

125

-

-

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ...................................

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

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

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

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

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

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

September ..................................

Water year 1941-42 ... ...... ...........

Mar.

122

125

128

131

129

131

135

136

144

145

161

182

168

168

172

180

184

186

184

188

182

174

167

158

144

126

104

92

90

87

83

Apr.

87

94

102

154

261

248

224

201

192

245

385

396

389

434

488

434

459

511

498

570

650

682

682

704

625

650

655

640

556

488

-

Secondfoot days

1,007

1,972

3,288

117,184

4,200

3,737

4,506

12,704

11,184

4,406

510

381

355

48,250

May

454

463

404

407

411

392

389

392

400

411

396

371

350

326

307

300

291

291

274

274

297

316

350

374

385

385

371

360

353

350

340

Maximum

81

80

135

2,740

217

146

188

704

463

323

39

14

12

704

June

323

297

277

272

274

253

237

219

207

192

178

154

138

135

129

118

106

91

87

83

82

80

77

71

66

61

56

51

50

42

-

Minimum

18

53

71

15

105

122

83

87

274

42

10

11

11

10

July

39

35

30

24

21

19

18

18

18

17

16

16

16

16

16

15

15

14

13

13

12

11

12

12

11

11

11

11

10

10

10

Aug.

12

11

13

13

12

14

14

13

12

14

13

13

13

12

12

13

12

12

13

12

12

12

12

12

12

12

11

11

12

11

11

Mean

32.5

65.7

106

321

135

133

145

423

361

147

16-5

12.3

11.8

132

Sept.

12

12

12

12

12

12

12

12

11

11

11

12

12

12

12

11

12

12

12

12

12

12

12

12

12

12

12

11

12

12

~

Runoff in 

acre-feet

2,000

3,910

6,520

232,500

8,330

7,410

8,940

25,200

22, 180

8,740

1,010

756

704

95,700

Time baala; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. To 

convert war time to standard time, subtract 1 hour.
TULARE LAKE BASIN 175

Tulare Lake In Kings County, Calif.

Location.- Staff gage, lat. 36°03', long. 119°44', at southwest cornor sec. 31, T. 21

 S., II. 21 E., about 12 miles southeast of Stratford. Datum of gage is at nean oea 

level.

Records available.- February 1937 to September 1942. March 1906 to September 1920 

(incomplete) at several other sites.

Extremes.- Maximum elevation recorded during year, 193.9 feet Feb. 12, 13, Feb. 19 to 

Mar. 16.

1906-42: Maximum elevation, 196.8 feet June 27, 28, 1941; lake dry or practically so during parts of 1906, 1914, 1916, 1919, and each year of 1920-22, 1924-37.

Lake elevation of June 27, 23, 1941, was highest known since about 1890.

Remarks.- Tulare Lake receives water from Kings, Kaweah,' and Tule Rivers during hlgh-

 water periods and occasionally from Kern River, Deer Creek, and several small

intermittent streams. Its boundaries have been greatly altered In recent years by 

construction of levees and other reclamation work. Elevation at lowest point of lake 

Is about 179 feet above mean sea level.

On Sept. 30, 1942, area of lake was reported to be about 46,000 acres and contents 

about 420,000 acre-feet.

Cooperation.- Gage-height record obtained under supervision of Roy L. May and furnished 

by Tulare Lake Reclamation District No. 749.

Elevation, In feet, water year October 1941 to Septenber 1942

Day

1

2

3

4

5

e

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

Oct.

193.4

193.4

193.4

193.4

193.3

193.3

19.?. 3

193.3

193.3

193.3

1.93.3

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

Nov.

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.1

193.1

193.1

193.1

193.0

193.0

193.0

193.0

193.0

193.0

193.0

193.0

-

Dec.

193.0

193.0

193.0

193.0

193.1

193.1

193.1

193.1

193.1

193.1

193.1

193.1

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.2

193.3

Jan.

193.3

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.4

193.5

193.5

193.5

193.5

193.6

193.6

193.6

I^eb.

193.

193.

193.

193.

193.

193.8

193.8

193.8

19r.8

193.8

193.8

193.9

193.9

193.8

193.8

193.8

193.8

193.8

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

_

_

-

Mar.

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.9

193.8

193.8

193.8

193.8

193.8

193.8

193.8

193.8

193.8

193.8

193.8

193.8

193.8

193.8

193.8

Apr.

193.7

193.7

193.7

193.7

193.7

193.7

193.7

193.7

193.7

193.7

193.7

193.7

193.6

193.6

193.6

193.6

193.6

193.6

193.6

193.6

193.6

193.6

193.6

193.6

193.6

_

-

-

_

-

-

May

_

_

189.8

189.7

189.7

189.7

189.7

189.7

189.7

189.7

189.7

189.6

189.6

189.6

189.6

189.6

189.6

189.6

189.6

189.6

189,6

189,6

189.6

189.6

189.6

189.8

189.8

189.8

189.9

189.9

189.9

June

189.9

189.9

189.9

190.0

190.0

190.0

190.1

190.1

190.3

190.4

190.4

190.6

190.7

190.8

190.9

191.0

191.1

191.1

191.2

191.3

191.4

191.4

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

-

July

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.5

191.6

191.6

191.6

191.6

191.7

191.7

191.7

191.7

191.7

191.7

191.7

Aug.

191.7

191.7

191.8

191.8

191.8

191.8

191.8

191.0

191.8

191.8

191.8

191.9

191.9

191.9

191.9

191.9

191.9

191.9

191.8

191.8

191.9

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

Sept.

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.8

191.9

191.9

191.9

191.9

191.9

191.9

191.9

191.9

191.9

191.9

191.9

192.0

192.0

192.0

192.0

-

Note.- Ho gage-height record Apr. 26 to Hay 2.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter 

To convert war time to standard time, subtract 1 hour.
176 TULARE LAKE BASIN

North Fork of Middle Fork of Tule River near Sprlngvllle, Calif.

Location.- Water-stage recorder, lat. 36°11', long. 118°42', In sec. 23, T. 20 S., R. 30

E., 1 mile upstream from mouth and 7.8 miles northeast of Sprlngvllle. Altitude of

gage, about 2,850 feet (from topographic map). 

Drainage area.- 39.5 square miles. 

Records available.- November 1939 to September 1942. January 1909 to December 1912 at

site 2 miles upstream. 

Extremes.- Maximum discharge during year, 263 second-feet Jan. 25 (gage height, 4.76

feet): minimum, 2.2 second-feet Aug. 23.

1939-42: Maximum discharge, 469 second-feet Jan. 10, 1940 (gage height, 5.35 feet);

minimum, 1.7 second-feet Dec. 23, 1939. 

Remarks.- Records good. Pacific Gas and Electric Co. conduit near Sprlngville (p.178)

diverts water 2l miles upstream. 

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by Pacific

Gas and Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1941-42 (gage height. In feet, and discharge. In second-feet) 

(Shifting-control method used Oct. 1 to NOT. 22)

Oct. 1 to Jan. 24 Jan. 25 to Sept. 30

l.S 1.9 2»7 22 l.S 1.9 2.4 12.5 

1.9 3.1 2.9 29.5 1.9 2.8 2.5 15 

2.0 4.7 3.1 39 2.0 4.0 2.7 21 

2.1 6.5 3.3 50 2.1 5.6 2.9 29 

2.2 S.5 3.6 72 2.2 7.6 3.1 39 

2.3 11 3.9 104 2.3 10 

2.4 13.6 4.2 146 Note.- Same as preceding 

2.5 16 4.4 180 table above 3.1 feet.

Discharge, iji second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Goto 

None 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Oct.

3.0 

3.0 

3.0 

3.0 

3.1

3.1 

3.1 

3.0 

3.0 

3.0

3.0 

3.0 

3.3 

3.1 

3.0

3.0 

3.0 

3.3 

3.4

4.1

3.4 

3.3 

3.3 

3.6 

3.4

3.3 

6 

5 

3.4 

3.3 

3.3

Nov.

3.4 

3.4 

3.4 

3.4 

3.4

3.4 

3.6 

4.1 

4.5 

4.4

3.6 

3.4 

3.6 

3.6. 

4.1

4.1 

4.7 

4.1 

3.9 

3.7

3.7 

7 

5.5 

5

4.7

5 

4.7 

5.5 

6.5 

6

Dec.

5 

5 

29 

21 

7.5

6.5 

6 

5.5 

5 

4.2

4.2 

4.1 

4.1 

4.2 

7

6.5 

6 

4.9 

4.7 

4.9

6 

5.5

7.5 

6.5 

6

9 

10 

19 

20 

19 

13

Jan.

12 

11 

10 

9.6 

9

9 

9.5 

10 

10 

11

12 

11 

10 

10 

10

9.5 

9 

8.5 

S.5 

8.5

S

11 

10 

9.5 

160

39 

35 

30 

15 

13 

11

Month

Feb.

10 

12 

12 

11 

12

12 

12 

11 

10 

9.5

9.5 

9 

9 

9 

S.5

S 

8 

8 

S 

7.5

8.5

11 

9 

9 

9

8 

S 

8

lendar year 194] 

ary

1. .....................................

ter year 1941-42 ...............

Mar.

.5 

.5 

.5

.5 

.5

7 

7.5

36 

35 

25 

17 

15

14 

14 

14 

14 

13

12 

12 

12 

12 

11

11 

10 

10 

11 

14 

21

Apr.

25 

32 

44

7S 

54

48 

40 

40 

40 

54

54 

54 

63 

79 

66

63 

75 

61 

69 

79

77 

S4 

SS 

75 

76

70 

65 

60 

48 

42

Second- .. 

foot-days

May

48 

42 

42

50 

66

86 

110 

127 

135 

120

109 

88 

76 

70 

69

60 

63 

78 

110 

146

17S 

17S 

162 

164 

167

157 

132 

123

104 

90 

94

iaum

103.6 6 

129 . 4 7 

266. S 29

15.6S6.9 336

539.5 160 

266.5 12 

406 . 0 36 

1,803 88 

3,244 17S 

2,126.5 123 

162.7 7 

106.3 4.6 

85.6 3.6

9,240.1 17S

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942 

To convert war time to standard time, subtract 1 hour.

June

9S 

104 

97 

104 

116

123 

116 

103 

106 

114

112 

106 

94 

99 

S4

76 

70 

66 

59 

49

41 

36 

32 

27 

24

21 

17 

13 

11 

S.5

Minimum

3.0 

3.4 

4.1

3.0

8 

7.5 

7 

25 

42 

8.5 

3.6 

2.5 

2.5

2.5

July

7 

6.5 

6.5 

6.5 

6

6 

6 

6 

5.5 

5.5

5.5 

5.5 

5.5 

5 

5

5 

5 

5 

4.8 

4.S

4.S 

4.8 

5 

5 

5

5 

4.6 

4.3 

4.2

3.S 

3.6

Aug.

3.6 

3.8 

4.2 

4.2 

4.2

4.3 

4.3 

4.3 

4.5

4.6

4.6 

4.5 

4.6 

3.9 

3.2

3.2 

3.2 

3.3 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.5

2.5 

2.5 

2.6 

2.6 

2.6 

3.5

Sept.

3.3 

3.3 

3.4 

3.4 

3.5

3.6 

3.5 

3.6 

3.3

3.0

2.9 

2.7 

2.6 

2.6 

2.6

2.6 

2.5 

2.6 

2.5 

2.5

2.5 

2.5 

2.5 

2.5 

2.6

2.6 

2.6 

2.6 

2.6 

2.6

II Runoff in 

acre- feet

3.35 206 

4.31 257 

8.61 529

43.0 31,130

17.4 1,070 

9.52 529 

13.1 805 

60.1 3,580 

105 6,430 

70.9 4,220 

5.25 323 

3.43 211 

2.85 170

25.3 18,330

; Pacific war time thereafter.
TULARE LAKE BASIN IV 

Tule River near Portervllle, Calif.

Location.- Water-stage recorder, lat. 36°05', long. 118°55', In NWi sec. 25, T. 21 S., R. 

28 E., at highway bridge, 1 mile upstream from South Fork and 6 miles east of Portervllle. Altitude of gage, about 580 feet (from topographic map).

Drainage area.- 266 square miles.

Records available.- May 1901 to September 1942.

Average discharge.- 41 years, 144 second-feet.

Extremes.- Maximum discharge during year, 1,640 second-feet Jan. 25 (gage height, 6.45 

feet); minimum, 4.3 second-feet Sept. 24.

1901-42: Maximum discharge, 12,500 second-feet Feb. 13, 1936 (gage height, 10.55 

feet), from rating curve extended above 3,700 second-feet on basis of area-velocity 

computations; no flow during parts of 1934 and 1935.

Remarks.- Records good. Several small diversions above station. Power Is developed on 

Middle Fork and tributaries.

Rating table, irater year 1941-42 (gage height, In feet, and discharge, 

In second-feet)

1.3 3.7 1.7 14 2.4 SO 3.6 308 

1.4 5.2 1.8 20 2.7 124 4.0 414 

1.5 7.3 2.0 36 3.0 177 4.5 584 

1.6 10 2.2 57 3.3 238 5.0 780

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

14 

13 

12 

12 

12

14 

14 

15 

16 

16

15 

15 

16 

19 

19

18 

IS 

18 

IS 

37

39 

35 

35 

35 

37

37 

54 

65 

54 

47 

45

Nov.

44 

44 

44 

43 

41

40 

39 

36 

36 

36

36 

36 

36 

36 

35

37 

47 

48 

44 

43

43 

42 

43 

42 

40

40 

40 

39 

47 

83

Dec.

59 

54 

182 

147 

85

73 

68 

66 

63 

65

65 

61 

61 

61 

93

113 

122 

92 

S3 

78

83 

78 

81 

S3 

76

106 

99 

271 

316 

372 

358

Jan.

256 

169 

138 

124 

116

110 

106 

114 

118

118

132 

144 

145 

144 

140

137 

127 

121 

. 116 

110

105 

130 

145 

124 

76S

445 

479 

580 

340 

267 

227

Feb.

204 

210 

258 

214 

220

247 

236 

214 

196 

183

171 

166 

162 

147 

142

138 

132 

130 

126 

134

124 

190 

144 

140 

138

132 

127 

122

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

M av

June 

July 

Augu 

Sept

Ha

lendar year 194 1

h. .....................................

ter year 1941-42 ...............

Mar.

121 

134 

137 

134 

142

149 

149 

154 

162 

168

316 

414 

380 

338 

374

306 

283 

303 

283 

260

253 

256 

253 

249 

234

216 

208 

204 

212 

223 

240

Apr.

249 

260 

274 

405 

353

385 

336 

318 

313 

356

391 

356 

366 

452 

417

374 

492 

408 

388 

402

400 

402 

420 

374 

363

343 

328 

340 

306 

283

Bay

316 

308 

293 

300 

318

340 

366 

391 

411

377

356 

323 

296 

278 

281

265 

258 

274 

306 

361

417 

430 

394 

382

397

408 

343 

330

300 

272 

267

Second- ... foot-days "a*1""""

814 65 

1,260 83 

3,613 * 372

86,392 2.270

6,295 768 

4,737 258 

7,235 414 

10,854 492 

10,358 430 

6, 170 288 

1,201 76 

286.5 15 

174.6 7

52,998.1 768

June

274 

281 

265 

267 

274

286 

288 

269 

276 

276

274 

265 

245 

229 

225

214 

202 

194 

185 

173

158 

147 

137 

189 

182

118 

111 

104 

96 

86

Minimum

12 

35 

54

11

105 

122 

121 

249 

258 

86 

16 

7.5 

4.4

4.4

July

76 

72 

67 

65 

62

58 

54 

49 

48 

46

43 

42 

40 

38 

36

37 

36 

35 

34 

32

29 

26 

26 

23 

20

19 

19

18 

18 

17 

16

Aug.

14 

15 

15 

15 

14

12 

10 

9 

8.5 

9.5

10 

9 

8.5 

S

e

S 

8

7.5 

7.5 

7.5

7.5 

7.5

7.5 

7.5 

7.5

7.5 

7.5 

7.5 

7.5 

7.5 

7.5

Sept.

d7 

d7 

d7 

d6.5 

d6.5

6.5 

d6.5 

d6.5 

d6 

6

7 

6.5 

6 

6.5 

6

6 

6 

5 

4.9 

5

5 

4.9 

4.8 

4.6 

4.4

4.6 

4.9 

5 

6 

6

u.._ Runoff in "ean acre-feet

26.3 1,610 

42.0 2,500 

117 7,170

237 171,400

203 12,490 

169 9,400 

233 14,350 

362 21,530 

334 20, 540 

206 12,240 

38.7 2,380 

9.24 568 

5.82 346

145 105,100

Peak discharge.- Dec. 30 (1 p.m.) 516 sec. -ft.; Jan. 25 (11 a.m.) 1,640 sec. -ft.; Jan. 27 (8 p.m.)

Apr. (3 p.m.) 562 sec.-ft.; Apr. 17 (S a.m.)

9, 1942; Pacific war time thereafter.
178 TULARE LAKE BASIN

Pacific Gas & Electric Co. conduit near Sprlngvllle, Calif.

Location.- Water-stage recorder, lat. 36°12', long. 118°39', In NWi sec. 18, T. 20 S., 

R. 31 E., half a mile downstream from Intake and 10 miles northeast of Sprlngvllle. 

Altitude of gage, about 4,000 feet (from topographic map).

Records available.- October 1939 to September 1942.

Extremes.- Maximum dally discharge during year, 62 second-feet Jan. 26; minimum dally, 

12 second-feet Nov. 22.

1940-42: Maximum dally discharge, that of Jan. 26, 1942; minimum dally, 0.9 

second-foot Dec. 30, 1940.

Remarks.- Records good. Conduit diverts from left bank of North Fork of Middle Fork of 

Tule River In sec. 18, T. 20 S., R. 31 E. Water Is used for power development at 

Tule River powerhouse of Pacific Gas & Electric Co. 3i miles downstream and Is then 

returned to river.

Cooperation.- Water-stage recorder graph furnished by Pacific Gas and Electric Co. In 

connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

a!6

a!6

a!6

a!6

a!6

a 16

16

16

16

16

16

16

16

16

16

15

15

15

16

18

17

16

16

IB

IB

17

24

19

18

17

16

Nov.

16

17

17

16

16

IE

15

15

14

14

15

15

15

15

14

15

17

16

16

15

16

12

15

15

15

15

15

14

22

21

-

Dec.

17

16

31

14

20

IB

17

17

16

18

17

17

17

19

31

32

27

23

21

21

21

19

20

19

19

20

21

30

32

28

23

Jan.

20

19

19

18

18

18

20

21

21

24

28

30

32

32

31

30

28

27

26

25

26

29

27

27

19

62

61

61

54

45

40

Feb.

37

42

45

40

45

44

43

39

36

34

33

32

31

2B

27

27

26

26

26

26

27

27

26

26

25

25

24

25

-

-

-

Mar.

26

2S

30

34

39

41

42

46

51

52

60

60

60

58

52

48

49

50

49

50

52

55

56

E4

50

48

48

51

"60 56

60

Apr.

60

60

61

61

61

61

61

61

61

61

61

61

61

61

58

61

61

61

61

61

61

61

61

61

61

61

60

60

60

60

-

May

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

60

59

60

59

59

59

June

59

59

59

59

59

59

59

59

58

58

58

58

58

43

57

57

57

57

57

57

57

56

56

56

56

56

56

56

55

54

-

July

53

52

50

43

46

44

42

41

40

39

38

36

35

34

34

33

33

32

31

30

29

28

27

26

25

25

25

24

24

24

24

Aug.

24

23

22

21

21

20

20

19

20

20

19

19

IS

19

19

19

19

18

IS

18

IS

IS

IS

IS

18

18

18

IS

19

IS

17

Sept.

17

17

16

16

16

16

16

16

17

18

IS

17

16

16

16

16

16

16

16

16

16

15

15

15

16

14

15

15

15

15

-

Month

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

Water year 1941-42 ................. ....

Secondfoot-days

468

661

12,905.5

938

892

1,515

1,821

1,856

» 1,705

1,072

594

476

12,513

Maximum

24

22

32

61

62

45

60

61

60

59

53

24

18

62

Minimum

15

12

14

IS

24

26

58

59

43

24

17

14

12

Mean

16.6

15.6

21.3

30.3

31.9

48.9

60.7

59.9

56.8

34.6

19.2

15.9

34.3

Runoff in 

acre- feet

1,020

928

1,310

25,600

1,860

1,770

3,000

3,610

3,680

3,380

2,130

1,180

944

24,310

a No gage-height record; discharge computed from flow through Tule River powerhouse. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
TULARE LAKE BASIN 179

South Fork of Tule River near Success, Calif.

Location.- Water-stage recorder, lat. 36°03', long. 118°51', In NWi sec. 4, T. 22 S., R. 

29 E., 3 miles southeast of Success and 5 miles upstream from mouth. Altitude of gage, 

about 750 feet (from topographic map).

Drainage area.- 106 square miles.

Records available.- June 1930 to September 1942.

Average discharge.- 12 years, 44.0 second-feet.

Extremes.- Maxlnnjm discharge during year, 609 second-feet Jan. 25 (gage height, 3.92 

 feet); no flow Aug. 22-28, Sept. 15-18, 21-24.

1930-42: Maximum discharge, 3,370 second-feet Feb. 6, 1937 (gage height, 6.36

feet), from rating curve extended above 1,100 second-feet on basis of velocity-area

studies; no flow at times each year except 1938 and 1941.

Remarks.- Records fair. Several diversions above station for irrigation.

Rating table, rater year 1941-42 (gage height, In feet, and discharge, 

In second-feet)

1.1

1.2

1.3

2.0 

3.5

1.7

1.9

2.0

29

46

56

2.4 

2.6 

2.8

112

150

196

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2.0

2.2

2.2

2.0

2.3

2.2

2.0

1.9

1.9

1.9

1.9

1.8

2.0

2.0

2.0

2.0

1.9

1.9

1.9

4.9

7

6.5

6

6

6

7

10

15

9.5

8.5

7.5

Nov.

7

7

7

7

7.5

7

7

7.5

8

a7

a?

a7

a7

a6.

a6

6.5

10

14

13

11

10

10

11

11

11

10

10

10

13

24

Dec.

17

15

58

50

27

22

18

17

17

19

20

19

17

17

38

42

46

32

27

23

26

23

25

27

23

36

31

67

74

92

94

Jan.

66

48

43

40

37

35

35

39

41

41

45

48

47

46

47

45

42

39

37

35

35

45

52

46

244

130

132

182

112

88

76

Feb.

67

63

92

71

71

75

78

67

62

60

55

51

51

46

45

46

43

42

41

40

40

58

47

47

47

46

44

42

-

-

-

Mar.

42

42

43

43

44

45

43

43

43

45

84

130

110

98

96

85

82

88

82

76

74

71

71

69

64

61

58

57

57 *58

60

Apr.

62

61

66

90

85

90

81

75

74

92

96

82

81

109

102

90

123

104

96

94

91

98

97

88

86

82

79

90

79

75

-

May

90

84

79

76

78

75

75

76

82

78

78

74

69

67

66

64

61

61

61

64

68

72

71

71

69

82

71

68

66

61

58

June

57

54

54

51

49

48

48

48

47

46

45

43

41

39

39

38

37

35

35

32

30

28

27

25

25

25

23

23

20

18

-

July

16

14

14

12

12

11

10

10

10

10

9

7

6

5

4.8

5.5

5.5

5

4.8

4.2

4.0

3.2

2.6

1.8

1.6

1.1

.8

.8

.8

.8

.5

Aug.

0.5

.4

.3

.3

.3

.2

.2

.3

.3

.3

.4

.4

.3

.3

.3

.2

.2

.2

.1

.1

.1

0

0

0

0

0

0

0

.1

.1

.1

Sept.

0.1

.1

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

0

0

0

0

.1

.1

0

0

0

0

.1

.2

.2

.2

.2

.2

-

Month

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

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

September. .................................

Water year 1941-42 ......................

Secondfoot-days

279.5

1,059

1,998

1,542

2,618

2,212

1,130

193.8

6.0

3.5

13,237.7

Maximum

24

94

690

244

92

130

123

90

57

16

.5

.2

244

Minimum

6

15

35

40

42

61

58

18

.5

0

0

0

Mean

9.32

34.2

87.3

71.4

37.7

6.25

.19

.12

36.3

Runoff in 

acre-feet

554

2,100

48,370

3,960

3,060

4,090

5,190

4,390

2,2,40

384

12

6.9

26,250

Pealc discharge.- Jan. 25 (10 a.m.) 609 see.-ft.; Jan. 28 (2 a.m.) 266 sec.-ft. 

a No gage-height record; discharge Interpolated.

Time basis) Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To conrert war time to standard time, subtract 1 hour.
180 TULARE LAKE BASIN

Kaweah River near Three Rivers, Calif.

Location.- Water-stage recorder, lat. 36°24', long. 118°57', in SWi sec. 33, T. 17 S., 

R. 20 E., 2i miles downstream from South Fork and 3 miles southwest of Three Rivers 

Post Office. Altitude of gage, about 620 feet (from topographic map).

Drainage area.- 520 square miles,

Records available.- February 1936 to September 1942. April 1903 to January 1936, at 

staff gage site 2 miles upstream.

Average discharge.- 39 years, 571 second-feet.

Extremes.- Maximum discharge during year, 4,170 second-feet May 21 (gage height, 7.20 

feet; minimum, 44 second-feet Oct. 16 (gage height, 1.21 feet).

1903-42: Maximum discharge, 33,300 second-feet Dec. 11, 1937 (gage height, 17.0 

feet, present datum), from rating curve extended above 6,000 second-feet on basis of 

velocity-area study; minimum, 8.5 second-feet Sept. 19, 1934.

Remarks.- Records excellent. Flow regulated by diversions above station for irrigation, 

and by power developments on Middle and East Forks.

Rating tables, water year 1941-42 (gage height, In feet, and discharge, In 

second-feet)

1.2

1.3 

1.5 

1.7 

1.9 

2.2

43

55

85

123

167

244

2.6 

2.9 

3.2 

3.6 

4.0 

4.5

to May 21

366

474

600

790

1,020

1,320

5.0 

5.5 

6.0 

6.5

7.0

1,680

2,100

2,600

3,190

3,870

Bay 22 to Sept. 30

1.2 48 1.8 146

1.3 59 2.0 192

1.4 72 2.2 244 

1.6 106

Note.- Same as preceding 

table above 2.2 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

Oct.

62

59

59

62

62

69

72

71

69

66

66

66

71

71

71

62

65

66

69

87

96

87

87

90

117

113

136

187

138

30 1 121

31 \ 119

Nov.

117

166

202

190

184

167

146

131

121

113

107

99

98

94

92

92

115

117

105

101

99

103

99

90

92

96

96

96

101

230

-

Dec.

153

134

628

432

278

239

210

197

184

177

174

160

153

153

214

225

302

220

200

194

200

184

187

194

174

212

217

466

716

655

494

Jan.

373

305

290

266

252

241

244

275

272

278

311

333

333

333

321

305

284

264

255

247

244

330

318

311

1,590

912

1,200

1,340

726

596

514

Feb.

466

466

641

506

574

614

591

514

470

444

411

407

393

359

350

343

333

327

321

314

314

411

346

346

324

324

308

302

-

-

-

Month

October ....................................

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

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

Calendar year 1941 ......................

January ....................................

February. ...............................

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

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

305

327

333

359

400

432

455

494

539

565

1,100

1,010

912

840

856

740

721

750

706

646

651

664

669

646

591

552

548

560

618

683

780

Apr.

790

862

978

1,800

1,240

1,160

978

978

990

1,070

,150

,100

,250

,620

,310

,230

,490

,240

,280

,490

,470

,440

,470

,300

,400

,310

,330

,310

,130

1,040

-

Secondfoot-days

2,636

3,659

8,326

318,504

13,863

11,519

19,452

37,206

60,700

65,860

18,643

3,771

1,847

247.482

May

1,150

1,090

1,100

1,220

1,360

1,580

1,830

2,080

2,220

2,010

1,870

1,530

1,350

1,310

1,310

1,220

1,270

1,580

2,060

2,710

3,190

3,220

2,950

3,120

3,110

2,860

2,270

2,320

1,910

1,810

2,090

Maximum

187

230

716

3,810

1,590

641

1,100

1,800

3,220

2,960

1,200

200

77

3.220

June

2,330

2,300

2,140

2,480

2,800

2,830

2,590

2,470

2,720

2,960

2,940

2,800

2,640

2,580

2,570

2,450

2,440

2,400

2,220

2,010

1,890

1,900

1,820

1,710

1,560

1,390

1,210

1,230

1,250

1,230

-

Minimum

5S

9C

134

59

241

302

30E

79C

1,09C

1,21C

207

74

54

54

July

1,200

1,180

1,180

1,160

1,080

966

884

823

775

716

702

614

565

569

578

548

482

447

425

411

393

390

356

340

327

311

287

264

241

222

207

Aug.

200

190

178

170

164

157

153

146

142

153

153

144

140

133

123

117

112

106

101

95

92

88

85

83

82

80

78

78

77

77

74

Mean

85.0

122

269

873

447

411

627

1,240

1,958

2,195

601

122

61.6

678

Sept.

69

68

67

67

67

66

64

60

62

67

77

75

69

66

62

59

58

57

57

57

56

56

55

54

54

54

55

56

57

56

"

Runoff in 

acre-feet

5,230

7,260

16,510

631,800

27,500

22,850

38,580

73,800

120,400

130,600

36,980

7,480

3,660

490,800

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time ther 

To convert war time to standard time, subtract 1 hour.
TULARE LAKE BASIN 18' 

North Fork of Kaweah River at Kaweah, Calif.

Location.- Water-stage recorder, lat. 36°29', long. 118°55', in SE sec. 34, T. 16 S., 

R. 28 E., li miles upstream from Mannikin Creek, li miles north of Kaweah, and 3 

niles upstream from mouth. Altitude of gage, about 1,080 feet (from topographic nap).

Drainage area.- 128 square miles.

Records available.- October 1933 to September 1942. October 1910 to October 1933, at 

site 1 mile downstream.

Average discharge.- 31 years (1911-42), 99.8 second-feet.

Extremes.- Maximum discharge during year, 1,580 second-feet Apr. 4 (gage height, 5.60 

feet); minimum, 8 second-feet Sept. 30 (gage height, 1.58 feet).

1910-42: Maximum discharge, 8,290 second-feet Dec. 11,-1937 (gage height, 11.0 

feet), from rating curve extended above 4,000 second-feet on basis of velocity-area 

study; no flow for many days during period July to October 1924.

Remarks.- Records good for October, November, and July to September; fair December to 

June. Several small diversions above station for Irrigation.

Rating tables, ater year 1941-42 (gage height, in feet, discharge, in 

second-feet)

1.6 

1.8 

2.0 

2.3

7

11.5

Oct. 1 to Dec. 3

2.6 73

2.9 115

3.2 177

3.5 260

Dec. 3 to Sept. 30

3.8 360

4.1 485

4.4 640

4.7 835

1.6 8.3

1.8 13.5

2.0 21

2.2 32

2.4 48

2.6 68

2.8 95

3.1 154

Hote.- Same as preceding 

table above 3.1 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

?

3

4

5

fi

7

R

9

10

11

1?

13

14

15

Ifi

17in

19

20

?1

2?

23

24

25

2fi

?Ti

2.B ?q

30

31

Oct.

9

9

8.5

8.5

9

10

10

10

10

10

9.5

9.5

10

11

10

10

10

9.5

10

13

14

14

14

14

20

18

28

45

25

21

19

Nov.

18

26

25

21

19

18

17

16

16

16

16

15

15

16

16

16

19

21

18

18

17

17

17

17

17

17

17

17

19

51

-

Dec.

29

24

164

100

50

40

S4

31

30

30

29

28

28

28

47

49

73

46

41

40

41

35

39

37

34

46

44

112

227

192

128

Jan.

83

66

60

57

55

53

57

68

67

72

82

89

89

89

84

78

72

69

66

64

62

97

92

88

471

275

424

403

224

184

159

Feb.

141

143

208

161

192

197

190

163

147

136

126

120

114

105

98

98

95

92

92

90

89

122

97

100

89

90

84

83

-

-

-

Month

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

Hay. .......................................

Water year 1941-42 ......................

Mar.

84

90

90

100

112

126

132

145

156

161

398

346

300

281

284

248

233

239

222

200

2OO

205

205

197

177

168

166

170

184

200

222

Apr.

222

230

260

770

424

372

317

310

310

338

368

349

388

525

408

376

444

372

388

428

424

408

408

372

388

360

368

368

317

297

-

Secondfoot-days

428.5

568

1,876

59,498.0

3,899

3,462

6,041

11,309

12,254

6,714

1,409

497

299.0

48,766.5

Bay

331

307

314

342

376

412

444

480

490

440

412

356

321

307

310

300

297

338

392

458

505

500

462

472

458

570

428

412

360

335

335

Maximum

45

51

227

l.OOO

471

208

398

770

570

342

83

22

12

770

June

342

328

314

317

331

335

317

297

290

287

284

272

257

245

236

224

213

202

190

177

166

154

145

134

128

120

114

107

98

90

-

Minimum

8.5

15

24

8.5

53

83

84

222

297

90

23

12

8.5

8.5

July

83

78

73

68

65

60

59

57

55

52

51

50

47

46

44

43

43

45

42

39

37

34

32

29

28

27

26

25

24

24

23

Aug.

22

22

22

21

20

19

19

18

18

17

18

18

17

17

17

16

16

15

15

14

14

13

13

12

12

12

12

12

12

12

12

Mean

13.8

18.9

60.5

163

126

124

195

377

396

224

45.5

16.0

9.97

134

Sept.

12

11

11

11

11

11

11

10

11

11

12

12

11

10

10

9.5

9

9

9

9

9

9

8.5

8.5

8.5

9

9

9

9

9

-

Runoff in 

acre feet

850

1,130

3,720

118,000

7,730

6,870

11,980

22,430

24,330

13,320

2,790

986

593

96,730

Peak discharge.- Jan. 25 (8 a.m.) 856 sec.-ft.; Jan. 27 (9 p.m.) 1,420 sec.-ft.; Apr. 4 (6 a.m.) 

l,b8U sec.-rt.; nay 26 (3 a.m.) 8OO sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
182 TULARE LAKE BASI1I

Kings River above North Fork, Calif.

Location.- Water-ctago recorder, lat. 36°52', long. 119°07', in Nt sec. 27, T. 12 8., 

R. 2fe E. (unsurveyed), 1 mile upstream from North Fork of Kings River and 10 miles 

southeast of Trimmer. Altitude of gage, about 1,020 feet (from topographic map).

Drainage area.- 956 square miles.

Records available.- October 1931 to September 1942. March 1927 to December 1928 at site 

half a mile downstream.

Average discharge.- 12 years, 1,524 second-feet.

Extremes.- Maximum discharge during year, 9,420 second-feet June 11 (gage height, 6.70 

feetJ; minimum, 199 second-feet Oct. 16.

1927-28, 1931-42: Maximum discharge, 42,000 second-feet Dec. 11, 1937 (gage 

height, 12.02 feet), from rating curve extended above 10,000 second-feet on basis 

of velocity-area studies; minimum, 79 second-feet Oct. 13, 1934 (gage height, 0.54 

foot).

Remarks.- Records good. No diversions. Small amount of water released occasionally 

from Hume Lake.

Cooperation.- Gage-height record collected In cooperation with Pacific Gas & Electric Co.

Rating tables, water year 1941-42 (gage height, In f«et, and discharge, In

second^feet) 

Oct. 1 to June 11 June 12 to Sept. 30

1.0 192 2.0 54S 4 0 2,180 6.0 6,860 0.9 182 1.6 380 

1.2 238 2.4 765 4 4 2,720 6.5 8,660 1.0 206 1.8 460 

1.4 294 2.8 1,030 4 8 3,420 1.2 256 2.0 550 

1.6 366 3.2 1,360 5 2 4,340 1.4 314 2.4 765 

1.8 454 3.6 1,740 5 6 5,520 llote.- Same as preceding 

table above 2.4 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

224 

219 

216 

212 

214

221 

221 

219 

216 

210

207 

203 

203 

203 

201

199 

201 

205 

203 

210

233 

233 

231 

243 

264

256 

288 

321 

279 

264 

259

Nov.

259 

422 

472 

436

417

408 

395 

383 

362 

339

321 

308 

297 

282 

276

270 

288 

256 

243 

238

233 

243 

233 

231 

231

231 

228 

226 

253 

355

Dec.

276 

267 

1,310 

741 

6S8

603 

529 

486 

463 

440

408 

383 

374 

391 

472

491 

486 

426 

413

404

404 

374 

395 

366 

351

400 

436 

666 

1,020 

1,160 

953

Jan.

844 

711 

640 

603 

568

548 

563 

624 

593 

608

650 

656 

650 

640 

614

588 

548 

519 

500 

477

472 

583 

598 

656 

1,740

1,270 

1,320 

1,370 

1,050 

946 

838

Feb.

771 

753 

864 

783 

897

932 

974

870 

795 

759

700 

688 

645 

608

573

578 

553 

543 

529 

519

510 

573 

524 

529 

514

514 

491 

477

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 194] 

ary

ter year 1941-42 ......................

Mar.

486 

514 

524 

558 

619

672 

700 

747 

813 

844

1,530 

1,450 

1,310 

1,180 

1,170

1,110 

1,090 

1,110 

1,090 

1,020

988 

995 

1,000 

988 

925

890 

877 

884 

946 

1,020 

1,170

Apr.

1,240 

1,390 

1,580 

2,620 

1,920

1,700 

1,540 

1,560 

1,610 

1,730

1,760 

1,870 

2,230 

2,650 

2,220

2,150 

2,370 

2,010 

2,200 

2,590

2,680 

2,570 

2,640 

2,470 

2,720

2,640 

2,640 

2,430 

2,060 

1,900

Secondfoot-days

7,078 

9,136 

16,576

778,158

22,987 

18,466 

29,220 

63,690 

124,840 

192,660 

99,930 

26,300 

8,073

618,956

May

2,020 

1,850 

1,880 

2,060 

2,330

2,830 

3,380 

3,980 

4,450 

4,000

3,760 

3,040 

2,760 

2,720 

2,640

2,430 

2,530 

2,960 

3,840 

5,220

6,220 

6,810 

6,780 

6,880 

7,720

6,440 

5,130 

5,020 

4,380 

4,120 

4,660

Maximum

321 

472 

1,310

9,340

1,740 

974 

1,530 

2,720 

7,720 

8,120 

5,540 

1,290 

360

8,120

June

5,300 

5,840 

5,190 

5,840 

6,850

7,510 

7,220 

6,480 

7,080 

7,900

8,120 

7,980 

7,580 

7,400 

7,580

7,150 

7,290 

7,470 

6,910 

6,250

5,960 

6,250 

6,120 

5,930 

5,810

5,190 

4,330 

4,480 

4,760 

4,890

Minimum

199 

226 

267

199

472 

477 

486 

1,240 

1,850 

4,330 

1,280 

384 

204

199

July

4,920 

5,080 

5,360 

5,330 

5,540

5,100 

4,760 

4,400 

4,090 

3,890

3,780 

3,180 

3,020 

3,270 

3,340

3,290 

2,S80 

2,620 

2,370 

2,270

2,230 

2,300 

2,150 

2,190 

2,200

2,370 

1,990 

1,780 

1,550 

1,400 

1,280

Aug.

1, 

1, 

1,

1,

1, 

1, 

1, 

1, 

1,

1, 

1, 

1, 

1,

Mean

228 

305 

535

2,132

74S 

660 

-943 

2,183 

4,027 

6,422 

3,224 

848 

269

1,696

170 

070 

010 

981 

050

070 

040 

020 

010 

220

290 

190 

280 

120 

981

925

884 

813 

765 

717

661 

615 

575 

565 

550

532 

495 

464 

443 

410 

384

Sept.

360 

343 

336 

327 

317

306 

296 

290 

287 

284

296 

320 

306 

290 

273

262 

253 

253 

251 

246

240 

236 

225 

280 

216

213 

208 

206 

206 

204

Runoff in 

acre-feet

14,040 

18,180 

32,890

1,544,000

45,590 

36,630 

57,960 

126,300 

247 , 600 

382,100 

198,200 

52,170 

16,010

1,228,000

Time basis! Pacific standard time prior to 2 a.m., Feb. 

To convert war time to standard time, subtract 1 hour.

9, 1942; Pacific war time thereafter.
TULARE LAKE BASIN 183

Kings River at Piedra, Calif.

Location.- Water-stage recorder, lat. 36°49'02", long. 119°23'08", In NWi sec. 8, T. 

13 S., R. 24 E., half a nile downstream from highway bridge at Piedra, 2 miles downstream from Mill Creek, and 12 miles northeast of Sanger. Altitude of gage, about 

500 feet (from topographic map).

Drainage area.- 1,694 square miles.

Records available.- September 1895 to September 1942.

Average discharge.- 47 years, 2,346 second-feet.

Extremes.- Maximum discharge during year, 16,600 second-feet May 26 (gage height, 10.95 

feet); minimum, 238 second-feet Sept. 30 (gage height, l.£3 feet).

1895-1942: Maximum discharge, 80,000 second-feet Dec. 11, 1937 (gage height, 19.94 

feet), from rating curve extended above 30,000 second-feet on basis of velocity-area 

study; minimum, 67 second-feet Oct. 3, 1924.

Remarks.- Records excellent. Flow, slightly regulated by storage on Ten Mile and Mill 

Flat Creeks, and power plant on North Fork of Kings River.

Cooperation.- Eight discharge measurements and assistance in collecting gage-height 

record furnished by Kings River Water Association.

Rating table, water year 1941-42 (gage height, in feet, and discharge, in 

second-feet)

1.2

1.4 

1.6 

1.8

230 

2SO 

345

415

2.7 

3.0 

3.5 

4.0

810

970

1,290

1,680

4.5 2,130

5.0 2,660

5.5 

6.0 

7.0 

S.O

3,260

3,960

5,600

7,620

9.0 10,120

10.3 14,200

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

286

278

272

268

265

270

278

278

275

270

265

262

262

260

260

258

252

250

24S

262

298

317

307

310

34S

359

376

487

423

373

356

Nov.

359

499

710

660

584

571

543

523

499

463

447

423

408

387

380

373

387

404

345

334

324

331

334

314

317

320

328

345

324

664

~

Dec.

487

419

2,510

1,780

1,080

976

830

765

706

710

620

611

580

584

775

800

1,080

785

706

670

715

629

638

652

580

674

696

1,220

2,850

3,390

2,340

Jan.

1,830

1,420

1,200

1,080

994

942

932

1,020

1,030

1,020

1,090

1,160

1,150

1,100

1,100

1,020

954

888

882

855

830

915

1,100

1,120

3,370

2,660

2,510

3,370

2,130

1,780

1,590

Feb.

1,380

1,370

1,620

1,440

1,650

2,060

2,230

1,900

1,630

1,480

1,370

1,280

1,260

1,140

1,100

1,080

1,020

1,010

970

942

937

1,180

1,020

1,020

1,000

954

932

898

-

-

"

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February. ........................ .... . . .

March'. .....................................

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

Hay........................................

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

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

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

SeptWber. .................................

Wat«r year 1941^42 .................. . .

Mar.

871

926

982

1,010

1,100

1,210

1,270

1,350

1,500

1,540

3,060

3,060

2,530

2,320

2,540

2,250

2,060

2,120

2,060

1,910

1,850

1,890

1,900

1,830

1,700

1,630

1,570

1,580

1,710

1,900

2,190

Apr.

2,300

2,540

2,910

5,310

3,820

3,300

2,890

2,940

3,030

3,300

3,550

3,690

4,290

5,290

4,290

3,930

4,400

3,760

3,970

4,800

5,080

4,770

4,760

4,550

5,060

4,950

4,880

4,550

3,790

3,530

'

Secondfoot days

9,273

12,900

31,858

1,885,420

43,042

35,873

55,419

120,230

226,860

311,350

124,560

30,102

9,545

1,011,012

May

3,670

3,480

3,510

3,880

4,340

5,190

6,180

7,180

8,030

r, 3 60

6,780

5,580

4,870

4,840

4,710

4,450

4,580

5,470

6,920

9,190

11,500

12,400

12,600

12,600

14,000

12,700

9,060

9,140

7,620

7,000

8,030

Maximum

487

710

3,390

15,300

3,370

2 230

3*060

5,310

14,000

13,600

7,250

1,480

443

14,000

June

9,370

10,500

8,960

10,200

12,300

13,400

12,800

11,000

12,100

13,500

13,600

13,300

12,500

12,000

12,300

11,400

11,500

11,700

10,900

9,660

9,010

9,400

9,220

8,750

8,440

7,600

6,260

6,300

6,660

6,720

-

Minimum

248

314

419

248

830

871

3*4SC

6, 260

1,530

471

240

240

July

6,660

6,820

7,030

6,880

7,250

6,520

6,000

5,510

5,110

4,770

4,690

4,060

3,720

3,890

3,990

3,970

3,540

3,210

2,920

2,760

2,680

2,670

2,560

2,530

2,570

2,670

2,360

2,130

1,870

1,690

Aug.

1,390

1,280

1,190

1,140

1,170

1,210

1,190

1,160

1,140

1,250

1,480

1,340

1,380

1,290

1,140

1,050

1,000

932

871

820

760

710

665

642

634

620

588

547

531

511

1,530 471

Mean

299

430

1,028

3,522

1 388

1 ,281

1, 788

4,008

7 318 10)330

4,018

971

318

2,770

Sept.

443

423

408

394

384

370

356

338

334

356

334

370

370

345

328

307

292

289

286

280

275

270

268

258

252

248

245

242

24C

240

-

Runoff in 

acre-feet

18,390

25,590

63,190

2,550,000

85,370

71,150

109,900

238,500

450,000

617,600

247,100

59,710

18,930

2,005,000

T lag. >aaIs-. Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o "convert war time to standard time, subtract 1 hour.
184 TULARE LAKE BASIN

North Fork of Kings River near Cliff Camp, Calif.

Location.- Water-stage recorder, lat. 37°00', long. 118°59', in NWi sec. 12, T. 11 S., 

R. 27 E., at Cliff Camp Bridge, 1 mile northwest of Cliff Camp and 2.3 miles downstream from Woodchuck Creek. Altitude of gage, about 6,150 feet (from topographic 

map).

Drainage area.- 174 square miles.

Records available.- November 1922 to September ]942. August 1921 to November 1922 at 

site 1 mile upstream.

Average discharge.- 18 years (1921-32, 1933-35, 1937-42), 353 second-feet.

Extremes.- Maximum discharge during year, 4,510 second-feet May 24 (gage height, 11.95 

feet): minimum, 7 second-feet Sept. 26-30.

1921-42: Maximum discharge, 14,000 second-feet Dec. 11, 1937 (gage height, 18.0 

feet, from floodmarks), from rating curve extended above 4,500 second-feet on basis 

of velocity-area studies and by logarithmic plotting: minimum, 0.6 second-foot Dec. 

30, 1930.

Remarks.- Records fair. No diversions above station.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished 

by San Joaquin Power Division, Pacific Gas & Electric Co., in connection with a. 

Federal Power Commission project.

Rating table, water year 1941-42, except period of ice effect (gage height, 

in feet, and discharge, in aecond-feet)

8.6 

S.8 

3.0 

3.2 

3.4 

3.6 

3.8 

4.0

6

10

16

28

45

66

91

120

4.4

4.8 

5.2 

5.6 

6.0 

6.5 

7.0 

7.5

190

274

374

490

618

794

982

1,180

8.0

8.5

9.0

9.5

10.0

10.7

1,400

1,660

1,980

2,360

2,760

3,330

Discharge, in aecond-feet. water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

9.5

9

9

9.5

10

10

10

10

10

10

10

10

10

10

10

9.5

9.5

10

11

16

15

14

15

18

16

27

22

18

15

16

Nov.

20

88

99

68

66

57

50

44

38

34

30

28

26

24

22

22

29

16

18

18

16

18

14

15

16

16

16

16

52

36

-

Dec.

28

69

567

128

144

126

106

95

87

81

68

60

56

56

77

112

74

72

68

68

62

60

58

56

57

63

64

73

b76

b78

b76

Jan.

b75

b75

b75

b75

b75

b75

b85

b98

95

97

105

110

112

110

101

94

88

86

84

84

84

84

84

91

144

167

200

164

130

117

106

Feb.

104

106

112

108

105

105

108

102

99

98

94

91

88

86

82

81

79

77

76

76

76

76

77

77

74

74

71

72

-

-

Mar.

81

98

105

126

151

169

180

210

226

224

237

222

186

157

153

148

153

180

179

177

186

202

204

186

166

157

164

188

239

305

348

Apr.

374

433

578

652

388

345

353

402

445

496

550

676

758

740

565

578

5.68

496

711

921

898

823

860

887

1,030

971

868

676

565

499

-

Hay

505

484

574

722

906

1,170

1,480

1,630

1,720

1,540

1,320

963

895

914

876

857

1,080

1,380

1,910

2,560

2,900

3,000

3,020

3,280

3,120

2,520

1,980

1,940

1,580

1,630

2,060

June

2,460

2,440

2,260

2,800

3,160

3,180

2,840

2,700

3,040

3,180

3,140

2,960

2,780

2,760

2,680

2,520

2,560

2,480

2,200

1,980

1,940

1,940

1,840

1,720

1,580

1,310

1,150

1,260

1,260

1,260

-

July

1,240

1,240

1,200

1,190

1,O90

929

816

711

642

591

542

430

394

413

399

361

305

275

250

230

215

200

195

190

170

150

130

115

100

90

85

Aug.

75

70

65

60

55

55

55

55

50

50

50

50

51

40

34

28

27

24

20

19

18

16

15

14

14

14

14

14

14

14

13

Sept.

12

11

11

11

10

10

10

9.5

9.5

10

10

10

10

9.5

9

8.5

8

8

8

8

7.5

7.5

7.5

7.5

7.5

7

7

7

7

7

Month

October. ...................................

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

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

September. .................................

Water year 1941-42 ......................

Secondfoot-days

389.0

2,865

3,170

69,380

14,888

1,093

265.5

170,845.5

Maximum

27

567

200

75

12

3,280

Minimum

9

28

75

484

85

13

7

7

Mean

12.5

92.4

102

35.3

8.85

468

Runoff in 

acre feet

5,680

6,290

2,170

527

338,900

b Stage-discharge relation affected by ice. 

Note.- »o gage-height record July 18 to Aug. 12; discharge computed on basis of records for station below Rancheria Creek.
TULARE LAKE BASIN 185

North Fork of Kings River below Rancheria Creek, Calif.

Location.- Water-stage recorder, lat. 36°56', long. 119°00', in SEi sec. 34, T. 11 S., 

R7~27~~E., 1 mile upstream from Balch diversion dam and 1 mile downstream from 

Rancheria Creek. Altitude of gage, about 4,150 feet (from topographic map).

Drainage area.- 225 square miles.

Records available.- March 1927 to December 1937, January 1939 to September 1942.

Average aiscnargeT- 12 years (1927-36, 1939-42), 388 second-feet.

KxtreTJies.- naximum discharge during year, 4,840 second-feet May 24 (gage height, 11.70

 feet); minimum, 15 secor.d-feet Sept. 27-30.

1927-42: Maximum discharge, 21,000 second-feet Dec. 11, 1937 (gage height, about 

23 feet, from floodmarks), by computations of peak flow over Balch diversion and 

afterbay dams, 1 mile and 7 miles respectively, below station; minimum, 5 second-feet 

Aug. 29, 1931.

Remarks.- Records fair. No diversions above stations.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished

by San Joaquln Power Division of Pacific Gas & Electric Co., in connection witn a 

Federal Power Commission project.

Rating tables, water year 1941-42, except period of ice effect (gage height, in feet, 

and discharge, in second-feet)

Oct. 1 to May 24

1.3

1.6

1.7

1.8

2.1

2.4

2.6

13

18

20

22

31

43

53

2.8

3.0

3.5

4

4.5

5

5.5

65

79

121

172

238

318

422

6

6.5

7

8

9

10

11

556

728

940

1,480

2,150

2,990

4,030

May 25 to Sept. 30

1.5 14 2.1 29 3.0

1.6 16 2.4 40 3.5

1.7 18 2.6 50 4

1.8 20 2.8 62 4.5

Note.- Same as preceding tab]

above 4.5 feet.

75

118

171

238

Le

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

19

18

18

18

18

19

20

20

20

20

20

20

20

20

20

20

19

19

19

24

29

26

27

29

33

30

43

43

33

30

29

Nov.

35

116

126

89

83

71

63

56

50

46

41

39

37

35

33

33

41

32

27

28

23

28

26

26

27

27

28

27

69

80

-

Dec.

44

55

794

178

169

152

129

116

107

102

88

79

76

69

108

184

121

105

99

103

89

85

88

79

84

88

91

109

112

115

bl!2

Jan.

bill

bllO

b!09

bl08

107

106

116

127

124

133

150

158

161

160

148

140

130

126

124

123

123

136

132

151

350

281

370

294

211

188

168

Feb.

161

172

191

176

185

185

197

168

157

151

142

142

132

129

121

121

121

118

118

317

117

120

117

116

114

113

108

108

-

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February ...................................

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

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

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

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

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

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

September ..................................

Water year 1941-42 ......................

liar.

116

137

145

166

197

218

231

262

281

287

354

314

262

218

211

209

217

249

244

238

249

270

276

258

225

214

221

246

304

368

436

Apr.

451

526

731

1,030

569

498

472

532

575

668

690

825

940

970

720

713

728

627

842

1,110

1,110

990

1,020

1,020

1,220

1,160

1,090

842

698

637

-

Secondfoot-days

746

1,447

3,950

229,170'

4,975

3,917

7,623

24,004

56,900

75,460

16,357

1,684

600

197,663

May

661

614

705

850

1,070

1,360

1,670

1,870

1,980

1,760

1,550

1,150

1,040

1,080

1,050

1,000

1,220

1,580

2,150

2,740

3,080

3,200

3,160

3,500

3,340

2,860

2,280

2,260

1,890

1,900

3,330

Maximum

43

126

794

3,960

370

197

436

1,220

3,500

3,480

1,350

95

28

3,500

June

2,680

2,700

2,490

2,990

3,400

3,480

3,100

2,880

3,300

3,430

3,400

3,200

3,040

2,990

2,900

 2,720

2,750

2,650

2,390

2,150

2,110

2,120

2,010

1,890

1,730

1,470

1,290

1,380

1,460

1,560

-

Minimum

18

26

44

18

106

108

116

451

614

1,290

104

29

15

15

July

1,330

1,350

1,290

1,290

1,180

1,000

S77

784

705

637

598

488

432

446

434

403

344

314

279

258

239

227

214

210

204

175

160

142

128

115

104

Aug.

95

89

82

75

74

74

72

67

65

66

68

66

67

64

57

53

50

48

44

42

40

38

35

34

33

32

32

31

31

31

29

Mean

24.1

48.2

127

628

160

140

246

800

1,835

2,515

528

54.3

20.0

542

Sept.

28

27

26

25

24

23

22

22

22

23

24

23

22

21

19

19

18

18

18

18

17

17

16

16

16

16

15

15

15

15

-

Runoff in 

acre-feet

1,480

2,870

7,830

454,500

9,870

7,770

15,120

47,610

112,900

149,700

32,440

3,340

1,190

392,100

b Stage-discharge relation affected by ice. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 

To convert war time to standard time, subtract 1 hour.

530350 0-43-13

9, 1942; Pacific war time thereafter.
186 SAN JOAQU1N RIVER BASIN

SAN JOAQUIN RIVER MAIN STEM 

San Joaquin River above Big Creek, Calif.

Location.- Water-stage recorder, lat. o7°15'00", long. 119°19'10", in lIWi sec. 11, T. 

8 S., R. 24 E., 3 miles upstream from Big Creek. Altitude of gage, about 2,500 

feet (from topographic map).

Drainage area.- 1,042 square miles.

Records available.- March 1922 to September 1942.

Average discharge.- 17 years (1925-42, period since diversion began through Ward tunnel), 

I,ife8 second-feet.

Extremes.- Maximum discharge during year, 11,600 second-feet May 25 (gage height, 15.88 

feet); minimum, 136 second-feet Oct. 18 and 19 (gage height, 6.76 feet).

1922-42: Maximum discharge, 52,500 second-feet Dec. 11, 1937 (gage height, 24.05 

feet), from rating curve extended above 14,000 second-feet on basis of velocity-area 

studies; minimum, 52 second-feet Sept. 24, 25, 1931.

Remarks.- Records excellent. Flow regulated by large diversions and Florence Lake. (See 

P. 190 )

Cooperation.- Water-stage recorder graph and 12 discharge measurements furnished by 

Southern California Edison Co., Ltd., In connection with a Federal Power Commission 

project.

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

In second-feet)

6.5 

6.8 

7.2 

7.6 

8.0

101

142

208

308

442

8.5

9.0

9.5

10.0

10.5

640

880

1,170

1,510

1,880

11.0

11.5

12.0

12.5

13.0

2,300

2,780

3,350

4,040

4,880

13.5 5,840

14.0 6,890

14.5 8,000

15.0 9,160

15.5 10,460

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

156

151

150

146

151

157

157

154

150

148

145

144

144

142

140

140

139

133

139

145

168

183

173

176

190

187

208

229

201

194

182

Nov.

192

591

790

510

442

389

353

324

296

273

255

240

229

221

212

206

234

227

195

192

187

190

194

178

187

192

192

190

222

343

-

Dec.

270

287

4,860

1,450

984

790

649

582

530

518

457

420

403

476

636

790

716

582

538

534

503

450

472

424

399

438

491

704

1,070

962

815

Jan.

730

640

606

566

538

522

562

694

708

721

795

835

835

830

785

730

690

644

623

602

590

815

790

950

2,110

1,710

2,600

2,100

1,460

1,250

1,090

Feb.

990

1,040

1,190

1,160

1,300

1,460

1,790

1,240

1,060

984

896

870

795

755

698

721

685

676

658

658

667

716

667

667

640

636

619

602

-

-

-

Month

October. ...... ... . . ...................

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

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

Calendar year 1941 ................ .....

January ..... ..... ................. .

February .... ...... ...... . ..............

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

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

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

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

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

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

September. ... . . . .... .....

Water year 1941-42 . . ...... ....

Mar.

606

667

703

750

870

984

984

1,090

1,220

1,290

1,820

1,780

1,460

1,240

1,160

1,160

1,140

1,220

1,190

1,100

1,100

1,160

1,210

1,180

1,080

1,020

1,020

1,070

1,220

1,390

1,660

Apr.

1

1

2

4

2

2

2

2

2

2

2

3

3

4

3

2

2

2

2

3

3

3

3

3

3

3

3

2

2

2

Secondfoot-days

5,027

8,446

23,200

877,149

29,121

24,840

35,544

88,120

147,650

204,340

100,655

16,533

5,585

689,061

,64t>

,980

,350

,310

,820

,260

,080

,260

,450

,650

,740

,110

,610

,310

,110

,870

,880

,440

,650

,280

,520

,720

,750

,190

,680

,480

,350

,920

,440

,270

~

May

2,430

2,280

2,300

2,520

2,800

3,440

4,140

4,790

5,330

4,560

3,980

3,240

2,940

2,940

2,990

2,810

2,990

3,580

4,720

6,780

8,410

8,920

8,740

8,800

9,660

7,910

5,580

5,460

4,150

3,860

4,600

Maximum

229

790

4,860

11,600

2,600

1,790

1,820

4,310

9,660

8,760

6,440

795

236

9,660

June

5,760

6,520

5,330

6,560

8,070

8,760

8,250

7,110

8,050

8,740

8,760

8,580

8,180

8,210

8,480

7,660

7,440

7,680

7,240

6,500

6,000

6,330

6,270

6,170

5,800

4,770

3,960

4,100

4,440

4,620

-

Minimum

136

178

270

138

522

602

606

1,640

2,280

3,960

835

247

148

138

July

4,830

5,010

5,250

6,420

6,440

5,340

5,540

4,990

4,720

4,460

4,300

3,310

2,870

2,870

3,950

3,940

3,110

2,560

2,360

2,060

1,980

1,980

1,860

1,800

1,790

1,530

1,310

1,220

1,090

930

835

Aug.

770 "708

576

554

690

698

576

558

540

649

676

780

795

567

606

558

534

507

180

442

413

582

566

562

362

359

530

502

281

265

247

Mean

162

282

748

2,403

939

887

1,147

2,937

4,763

6,811

3,247

533

186

1,888

Sept.

236

229

227

225

216

214

208

206

204

203

208

210

199

188

182

176

176

176

175

173

168

167

160

156

152

152

150

150

151

148

-

Runoff in 

acre-feet

9,970

16,750

46,020

1,740,OOU

57,760

49,270

70,500

174,800

292,900

405,300

199,600

32,790

11,080

1,367,000

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.

To convert war tine to standard time, subtract 1 hour.
SAN JOAQUIN RIVER MAIN STEM 187

San Joaquin River below Frlant, Calif.

Location.- Water-stage recorder, lat. 36 059'04", lon£. 119°43'24", In SWi sec. 7, T. 11 

S., R. 21 E., half a mile west of Frlant, l£ nlies downstream from Cottonwood Creek, 

and 2 miles downstream from Friant Dam. Datum of gage is 294.00 feet above nean sea 

level (levels by Bureau of Reclamation).

Drainage area.- 1,675 square miles.

Records available.- October 1938 to September 1942. October 1907 to December 1913 at 

site 4i miles upstream. December 1913 to September 1938 at site 2| miles upstream.

Average discharge.- 35 years (1907-42), 2,375 second-feet.

Extremes.- Maximum discharge during year, 10,500 second-feet May 26 (gage height, 10.97 

feet); minimum, 5.5 second-feet (regulated) Oct. 20.

1907-42: Maximum discharge, 77,200 second-feet Dec. 11, 1937 (gage height, 23.8 

feet, site and datura then In use); minimum, that of Oct. 20, 1941.

Remarks.- Records excellent except those for period Oct. 21 to Dec. 3, which are good. 

Flow regulated by five reservoirs and six power plants above station. See records for 

Florence Lake, Huntington Lake, and Shaver Lake. Contents of Crane Valley Reservoir 

was 33,500 acre-feet on Sept. 30, 1941, and 36,600 acre-feet on Sept. 30, 1942. 

Storage in Mlllerton Lake, formed by Friant Dam, befcan on Oct. 20, 1941, and on Sept. 

30, 1942, contents was about 20,000 acre-feet, of wfllch 17,400 acre-feet la below the 

invert of river outlet.

Rating table, water year 1941-42, except period of backwater Oct. 21 to Dec. 

(gage height, In feet, and discharge, In second-feet)

2.8 212

3.0 275

3.3 385

4.0 

4.5 

5.0

760

1,120

1,530

5.5 2,000

6.0 

6.5 

7.0

2,540

3,120

3,740

7.5 4,420

8.0

9.0

10.0

5,130

6,720

8,500

11.0 10,600

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

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

Oct.

1,170

1,240

1,180

1,110

1,230

992

1,140

1,200

1,180

Nov.

604

612

620

636

648

656

668

676

680

1,180] 684

1,180

1,100

808

1,290

1,260

1,460

1,350

1,340

1,170

254

584

717

776

835

R69

599

492

511

541

564

584

530

406

713

890

990

1,020

995

1,060

3,070

990

885

881

656

557

860

1,040

1,110

1,120

1,120

-

Dec.

1,010

1,010

2,000

4,110

2,410

1,900

1,640

1,340

1,300

1,300

1,290

1,240

1,210

1,220

1,290

1,500

1,710

1,750

1,590

1,570

1,520

1,380

1,420

1,540

1,430

1,300

1,450

1,830

3,040

4,710

4,380

Jan.

3,410

2.460

2,080

1,940

1,790

1,750

1,820

1,840

1,910

1,910

1,800

1,650

1,810

1,890

1,900

1,900

1,880

1,710

1,620

1,620

1,700

1,690

2,000

2,050

2,990

3,690

3,660

5,420

4,570

3,540

3,190

Feb.

2,690

2,330

2,340

2,650

2,800

3,340

4,360

4,170

3,250

3,030

2,810

2,560

2,450

2,230

2,120

2,030

2,040

2,070

2,030

1,970

2,010

2.170

2,060

1,970

2,000

1,880

1,930

1,820

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February ........ ..........................

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

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

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

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

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

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

September ....... ..........................

Water year 1941-42 . ............. ...

Mar.

1,720

1,600

1,790

1,960

2,000

1,990

2,000

2,030

2,060

2,210

2,690

3,240

3,180

2,890

3,050

2,840

2,650

2,600

2,540

2,420

2,280

2,250

2,240

2,280

2,410

2,320

2,200

2,130

2,040

2,030

2,310

Apr.

2,630

2,760

3,050

4,350

5,500

4,490

4,150

4,080

4,070

4,410

4,520

4,430

4,730

6,200

6,400

5,690

5,580

4,950

4,360

4,390

4,910

5,300

5,420

5,200

5,080

5,120

5,000

5,100

4,800

4,390

-

Secondfoot-days

30,006

24,497

56,390

1,314,262

73 190

69, 120

Tl,950

141,060

198, 200

240,960

52 730

' 1 rjf\ oy , J. t\f

1,136,543

May

4,280

4,380

4,100

3,900

4,250

4,550

5,280

5,930

6,240

6,430

6,140

5,720

4,900

4,710

4,620

4,640

4,520

4,670

5,580

6,570

7,870

9,000

9,590

9,930

10,100

10,400

10,200

9,420

7,980

6,750

5,550

Maximum

1,460

1,120

4,710

13,000

5,420

4,360

3,240

6,400

10,400

9,800

6,790

1^420

10,400

June

5,900

6,990

7,540

7,280

7,990

8,660

9,190

9,320

8,980

9,280

9,720

9,780

9,800

9,760

9,640

9,550

9,300

8,880

8,860

8,660

8,070

7,300

7,420

7,280

7,180

7,060

5,740

5,240

4,980

5,610

-

Minimum

254

406

1,010

254

1,620 _, --

July

5,770

5,880

5,930

6,120

6,790

6,720

6,670

6,460

6,270

6,090

5,850

5,010

4,450

4,170

4,320

4,850

4,920

4,340

3,840

3,490

3,350

3,230

3,190

3.12C

3,050

3,010

2,700

2,610

2,480

2,400

2,190

Aug.

2,

1,

1,

1,

080

920

S20

830

1,820

1,800

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,

Mean

968

817

1,819

3,601

V .*fil

1,820 2,469

1,600 2,321

2,630 4,702

3,900 6,394

4,980 8,032

2,190 A AQ*

1,420

1,100

254

1,701

1 , 306

3,114

BOO

850

BOO

730

740

750

870

890

810

770

710

660

650

640

640

620

550

480

560

500

540

530

480

470

420

.Sept.

1,420

1,420

1,400

,380

,340

,330

,290

,320

,360

,340

,340

,310

,300

,280

,260

,310

,330

,290

,270

,240

,150

,270

,330

,340

,340

,320

,210

,100

,300

,280

~

Runoff in 

acre- feet

59,520

48,590

111,800

2,607,000

145,200

137,100

142,700

279,800

393, 100

477,900

276,200

104,600

77,690

2,254,000

To convert

£ Pacific standard time prior to 2 a.m., Feb. 9, 1942j Pacific 

ar time to standard time, subtract 1 hour.

time thereafter.
188 SAN JOAQUIN RIVER MAIN STEM 

San Joaquln River near Newman, Calif.

Location.- Water-stage recorder, lat. 37°21'02", long. 120°58'34", In SWi sec. 3, T. 7 

S., R. 9 E., at bridge on Mills Ferry road, 300 feet downstream from Merced River and 

3£ miles northeast of Newman. Datum of gage Is 51.0 feet above datum of Corps of 

Engineers, U. S. Army.

Drainage area.- 9,990 square miles.

Records available.- April 1912 to September 1942. Prior to Oct. 1, 1937, flow that bypassed station at discharges above about 9,000 second-feet not Included In records.

Average discharge.- 30 years, 2,579 second-feet.

Extremes.- Maximum clscharge during year, 12,100 second-feet June 7 (gage height, 14.87 

feet); minimum, 325 second-feet llov. 9 (gage height, 2.35 feet).

1912-42: Maximum discharge, 53,000 second-feet Mar. 7, 1938 (gage height, 18.50 

feet); minimum, 15 second-feet Aug. 9, 10, 1924.

Remarks.- Records fair Oct. 1 to Dec. 7 and Aug. 16 to Sept. 30; good Dec. 8 to Aug. 15. 

Practically entire flow of river and tributaries diverted during Irrigation season; 

low flows comprise mainly return water:

Discharge, in second feet. water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

42S

396

406

400

404

416

425

425

412

410

406

412

425

428

420

418

414

408

410

408

418

445

445

440

414

392

382

378

372

376

370

Nov.

360

342

338

336

333

330

330

329

326

330

332

334

335

345

351

351

343

349

390

457

504

542

581

581

567

550

556

578

57B

612

-

Dec.

646

718

790

862

930

995

1,140

1,650

2,070

2,270

2,340

2,230

2, ISO

2,240

2,250

2,340

2,450

2,380

2,300

2,320

2,450

2,560

2,600

2,570

2,500

2,440

2,400

2,490

2,600

2,760

3,040

Jan.

3,560

4,010

4,450

4,950

5,410

5,770

6,280

6,460

6,190

5,720

5,300

5,030

4,880

4,810

4,760

4,670

4,600

4,420

4,210

4,220

4,320

4,550

4,730

4,710

4,740

4,910

5,230

5,710

6,280

6,670

6/990

Feb.

,380

,700

,940

,180

,260

,120

,940

,620

,420

,400

,450

,490

,550

,710

,700

,490

,110

,720

,300

,930

,580

,410

,320

,280

,270

,220

,210

,170

_

_

-

Mar.

5.0SO

4,940

4,780

4,580

4,390

4,230

4,090

4,060

4,080

4,070

4,050

3,970

3,950

4,040

4,280

4,810

5,920

6,470

6,550

6,460

6,290

5,810

5,440

5,130

4,820

4,520

4,210

3,700

3,370

3,100

2,830

Apr.

2,600

2,410

2,440

2,640

2,960

3,510

4,940

5,200

4,950

5,210

5,660

6,060

6,130

6,120

6,770

7,510

7,980

6,400

8,720

8,700

6,650

,980

,380

,760

,810

,640

,580

,640

,800

,840

-

May

7,310

6,970

6,760

6,530

6,240

6,030

5,930

5,920

6,090

6,500

6,760

6,960

7,120

6,950

6,730

6,660

6,740

6,630

6,210

5,700

5,860

6,310

6,660

6,950

7,260

7,630

8,010

8,440

8,840

9,260

9,730

June

10,200

10,600

11,000

11,500

11,SOO

12,000

12,000

12,000

11,500

9,860

8,770

8,560

9,680

10,500

11,000

11,300

11,500

11,800

11,800

11,800

11,900

12,000

11,800

11,500

11,500

11,500

11,300

10,800

10,100

9,730

-

July

9,480

9,160

8,630

7,720

6,660

5,900

5,500

5,190

4,9SO

4,920

4,870

4,850

4,820

4,610

4,260

3,840

7,380

3,040

2,720

2,590

2,590

2,550

2, 570

2,040

1,700

1,490

1,390

1,260

1,180

1,120

1,060

Aug.

1,010

967

923

847

790

720

669

624

609

621

594

573

549

552

543

549

567

549

531

528

534

528

515

505

495

475

475

470

475

490

502

Sept.

475

472

495

485

4S8

522

558

537

522

540

546

502

490

480

475

478

475

485

482

505

520

518

512

520

522

512

515

543

561

573

-

Month

Hay. .......................................

Water year 1941-42 ..... ................

Second 

foot-days

1,477,111

Maximum

445

1,010

12,000

Minimum

5,170

2,410

8,560

1,060

470

472

386

Mean

2 ' 049

5,111

6,233

6,958

11,040

4,061

G06

510

4,047

Runoff in 

acre-feet

380,600

370,900

427,800

657,100

249,700

37,250

30,360

2,930,000

Time baa is: Pacific 

To convert war time to

standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

standard time, subtract 1 hour.
SAN JOAQUIN RIVER MAIN STEM 189 

San Joaquln River near Vernalls, Calif.

Location.- Water-stage recorder, lat. 37°40'34", long. 121°15'51", In El Pescadero Grant, 

at Durham Ferry highway bridge, 3 miles downstream from Stanislaus River and 3& miles 

northeast of Vernalls, San Joaquln County. Altitude of gage, about 10 feet (from 

topographic map).

Drainage area.- 14,010 square miles.

Records available.- July 1922 to September 1942 (1922-23 and 1925-29, low-water records 

only)".

Average discharge.- 13 years (1929-42), 5,637 second-feet.

Extremes.- Maximum discharge during year, 27,200 second-feet June 9 (gage height, 23.G7 

feet )', minimum, 1,3SO second-feet Aug. 24.

1922-42: Maximum discharge recorded, 51,200 second-feet Mar. 16, 1938 (gage height, 

26.b4 feet), Including flow through break In levee; maximum gage height, 27.05 feet 

Feb. 12, 1938, before break In levee; minimum discharge, 184 second-feet Aug. 14, 1931.

Remarks.- Records good. Practically entire flow of river diverted during Irrigation 

season; low flows comprised mainly of return water.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1,850

1,800

1,810

1,880

1,900

1,980

1,980

1,980

1,990

1,940

1,940

1,980

2,030

2,110

2,180

2,430

2,400

2,160

2,140

2,210

2,290

2,480

2,510

2,420

2,440

2,480

2,580

2,600

2,560

2,540

2,570

Nov.

2,530

2,430

2,270

2,140

2,140

2,100

2,080

2,060

2,030

2,020

2,030

2,090

2,330

2,510

2,560

2,570

2,560

2,530

2,600

2,580

2,540

2,400

2,380

2,400

2,400

2,410

2,380

2,330

2,240

2,240

-

Dec.

2,290

2,330

2,380

2,430

2,660

2,980

3,450

3 , 650

3,940

4,310

4,610

4,750

4,740

4,730

4,750

4,600

5,360

a5,900

a5,900

a5,900

85,800

a5,300

a5,400

a6,000

a6,100

a5,900

a5,500

a5,900

86,000

a6,800

87,700

Jan.

7,540

7,250

6,760

7,140

7,360

7,660

7,720

8,140

8,920

9,220

9,160

8,860

8,380

8,440

8,380

8,320

8,260

8,200

8,020

7,540

7,720

7,780

7,900

8,080

8,500

9,220

9,340

9,960

10,600

10,500

10,500

Feb.

11,400

12,000

12,600

13,500

13,700

14,300

15,400

16,000

15,700

14,900

14,300

14,100

14,000

13,800

13,900

13,900

13,600

13,200

13,000

12,600

11,400

10,800

10,200

9,540

9,680

9,610

9,750

9,540

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 .................... .

January ....................................

February. ..................................

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

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

Hay Unv ............ ................... .......

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

9,160

8,800

8,380

8,440

8,380

8,140

7,960

7,780

7,300

7,080

7,360

7,540

7,540

7,720

8,020

8,620

8,920

9,540

10,200

10,700

10,900

10,700

10,100

9,540

9,680

9,470

9,220

8,680

8,260

7,720

7,080

Apr.

6,700

6,480

6,200

6,150

6,540

7,120

7,770

9,050

10,300

10,800

11,200

11,800

12,400

13,100

14,400

15,700

16,500

16,500

16,600

16,700

16,900

17,500

18,000

18,500

18,800

18,700

18,400

18,100

17,900

17,600

-

Secondfoot-days

68,160

69,880

148,060

3,770,860

261,370

356,420

268,930

402,410

512,500

667,200

241,070

52,220

57,490

3,105,710

Hay

16,700

16,100

15,900

15,500

15,000

14,800

14,400

14,000

14,100

14,500

15,200

15,500

15,500

15,100

14,300

13,900

14,100

13,900

13,400

13,200

13,500

14,800

16,900

19,100

20,300

20,500

22,500

24,400

23,600

21,700

20,100

Maximum

2,600

2,600

7,700

34,100

10,600

16,000

10,900

18,800

24,400

27,100

16,400

2,200

' 2,050

27,100

June

18,700

18,400

19,600

21,300

22,200

23,000

24,300

26,000

27,100

26,800

26,000

25,200

24,800

24,700

24,200

23,800

24,100

24,200

24,000

23,700

23,400

22,600

21,400

19,800

18,700

18,600

19,200

18,700

17,400

15,300

-

Minimum

1,800

2,020

2,290

1,300

6,760

9,540

7,080

6,150

13,200

15,300

2,300

1,450

1,650

1,450

July

13,900

13,500

14,500

15,900

16,400

16,000

15,000

13,200

10,400

8,990

8,330

7,890

7,350

7,080

6,770

6,440

5,860

5,860

5,560

5,440

5,000

4,500

4,100

3,800

3,400

3,100

2,900

2,700

2,500

2,400

2,300

Aug.

2,200

2,100

2,050

2,000

1,900

1,850

1,750

1,700

1,650

1,600

1,600

1,550

1,520

1,500

1,500

1,500

1,500

1,500

1,500

1,500

1,500

1,600

1,600

1,500

1,450

1,650

1,800

1,800

1,800

1,600

1,

Mean

2,199

2,329

4,776

10,330

8,431

12,730

8,675

13,410

16,530

22,240

7,776

1,685

1,916

8,509

750

Sept.

,650

,750

,850

,800

,800

,900

,050

,050

,990

,000

,000

,000

,000

,000

,950

,900

,900

,850

,900

,900

,000

,950

,900

,850

,800

,850

,900

,000

,000

,000

-

Runoff in 

acre feet

135,200

138,600

293,700

7,480,000

518,400

706,900

533,400

798,200

1,017,000

1,323,000

478,200

103,600

114,000

6,160,000
190 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Florence Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°17', long. 118°58', in SEi sec. 36, T. 7 S., 

R. 27 E., in gatehouse of Ward tunnel intake, noar dam on South Fort: of San Joac^iin 

River, 16 miles northeast of town of Big Creek. Daturi of gage is at mean sea levej..

Drainage area.- 171 square railes.

Records available.- November 1925 to September 1942.

Extremes.- Maximum contents during year, 64,700 acre-feet July 7, 14, 26, 27 (elevation, 

7,327.8 feet); minirum, 166 acre-feet Feb. 22 (elevation, 7,223.5 feet).

1925-42: Maximum contents, 65,700 acre-feet July 16, 1935 (elevation, 7,320.8 

feet); no available contents Oct. 2-4, 1926, IIov. 30 to Dec. 2, 1927.

Remarks.- Lake is formed by multiple arch concrete dam; storage tegan in April 1925. 

Usable capacity, 64,400 acre-feet between elevations 7,220.9 feet (throat of Ver'turi 

tube In Ward tunnel intake) and 7,327.5 feet (top of spillway drum gates) above mean 

sea level. Water is diverted through Ward tunnel to Huntlngton Lake and used for 

power development In Elg Creek plants. Records show contents at midnight, all of 

which is available for diversion.

Cooperation.- Record of contents furnished by Southern California Edison Co., Ltd., in 

connection with a Federal Power Commission project.

Contents, In acre-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

39 , 700

38,900

38,000

37,200

36,500

35,800

35,100

34,500

33,800

33,100

32,500

31,800

31,200

30,500

29,900

29,200

28,600

27,900

27,300

26,700

26,100

25,400

24,600

24,000

23,200

22,500

21,900

21,200

20,500

19,800

19,100

Nov.

18,400

18,000

18,100

18,300

16,500

18,200

17,600

16,900

16,300

15,700

15,000

14,400

13,700

13,100

12,500

11,900

11,200

10,600

10,000

P,330

",730

8,520

8,580

8,160

7,440

6,750

6,090

5,430

4,820

4,180

-

Dec.

3,550

3,220

4,000

4,390

4,760

5,030

5,240

5,430

5,630

5,810

5,970

5,760

5,310

4,870

4,430

3,990

3,540

2,710

1,740

1,010

528

297

249

171

167

171

175

184

204

242

298

Jan.

320

308

282

248

225

214

211

204

199

200

207

208

210

205

196

188

183

181

180

175

173

172

185

201

223

265

270

256

243

229

218

Feb. Mar.

210

206

207

204

206

214

216

216

215

201

202

190

188

180

184

182

183

176

171

170

169

166

177

173

172

167

169

168

_

_

-

171

174

181

196

216

215

223

253

258

254

284

268

235

215

245

237

242

245

229

220

222

231

226

211

205

202

206

220

251

289

315

Apr . I May

342 ! 388

386

496

450

381

340

343

375

418

453

472

550

576

537

478

495

458

436

533

636

631

635

605

576

608

593

545

478

435

390

-

368

400

459

554

691

788

818

788

760

726

649

586

556

527

506

551

677

856

1,050

1,230

1,330

1,230

1,500

2,060

2,030

1,700

1,500

1,240

1,130

1,280

June

1,580

1,890

2,420

3,760

5,050

5,950

7,020

8,720

11,000

13,700

16,700

20,500

24,200

27,800

31,500

34,500

37,700

40,700

43,400

45,500

47,600

50,000

52,200

54,100

55,800

56,800

57,500

58,400

59,500

60,800

-

July

62,300

63,900

64,300

64,300

64,400

64,500

64,700

64,600

64,500

64,600

64,600

64,500

64,600

64,700

64,600

64,400

64,500

64,500

64,500

64,600

64,600

64,500

64,500

64,500

64,500

64,700

64,700

64,400

64,300

64,200

64,300

Aug.

64,200

64,200

34,000

64,200

64,300

64,300

64,300

64,300

64,300

64,300

64,300

64,200

64,100

64,100

64,000

64,100

64,200

64,200

64,200

64,100

64,000

63,800

63,700

63,500

63,200

62,800

62,200

61,600

60,800

60,100

59,400

Sept.

58,700

58,000

57,300

56,500

55,800

55,100

54,300

53,600

52,800

52,000

51,300

50,600

49,800

49,100

48,300

47,600

46,800

46,000

45,300

44,500

43,700

43,000

42,200

41,400

40,500

39,600

38,600

37,600

36,600

35,600

-

Monthly elevation and contents, water year October 1941 to September 1942

Date

Dec. 31... ..................

Calendar year 1941. .......

Mav 31

Elevation 

(feet)

7,225.2

7 232 4

7,294.7

Contents 

(acre-feet)

298

35,600

Change In contents 

during month 

(acre-feet)

14 920

-3,882

+34

-23,800

-4.900

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

ir time thereafter. To convert war time to standard time, subtract 1 hour
SAM JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 191

South Fork of San Joaquln River near Florence Lake, Calif.

Location.- Water-stage recorder, lat. 37°16'20", long. 118 057 l 50n , in SEi sec. 36, T. 7 

S., R. 27 E., just downstream from spillway of Florence Lake Dam, 6 niles upstream 

from Bear Creek. Altitude of gage, about 7,200 feet (fron topographic map).

Drainage area.- 171 square miles. \ 

Records available.- December 1921 to September 1942.

Average discharge.- 19 years (1922-31, 1932-42), 290 second-feet (combined flow of South 

Fork of San Joaquin River and Ward tunnel at intake).

Extremes.- Maximum discharge during year, 1,490 second-feet July 7 (gage height, 12.50 

feet); minimum, 0.1 second-foot (regulated) at times during October to December.

1921-42: Maximum discharge, 4,320 second-feet, June 6, 1940 (gage height, 15.38 

feet); practically no f!6w at times in 1924, 1925, 1935, 1936, 1937.

Remarks.- Records good above 200 second-feet and fair below. Flow regulated by Florence 

Lake (see preceding page) and diversion Into Ward tunnel (see following page).

Cooperation.- Water-stage recorder graph and several discharge measurements furnished by 

Southern California Edison Co. Ltd., in connection with a Federal Power Comnission 

project.

Rating table, water year 1941-42, except day of ice effect (gage height, In feet, 

and discharge, in second-feet)

7.71

8.0

8.2

8.4

8.6

1.8

4.4

11.5

27

50

102

172

282

10.6

11.0

11.5

12.2

428

595

850

1,280

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0,1

,1

.1

,1

.2

.1

,1

.1

.1

.2

.5

.5

.5

.5

.5

.5

.5

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

Nov.

0.3

.4

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.2

.2

-

Dec.

0.1

.5

1.4

.3

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.2

.1

.1

.1

.1

.1

.1

.3

15

4.1

2.6

2.5

2.5

2.5

2.6

2.7

Jan .

3.0

3.1

2.7

2.4

2.3

2.2

2.0

2.0

1.9

1.9

1.9

1.9

1.9

1.8

1.7

1.7

1.7

1.6

1.6

1.6

1.6

1.6

1.6

1.7

2.0

2.2

2.6

2.1

b2.0

1.8

1.7

Feb.

1.7

1.7

1.7

1.8

1.8

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.7

1.6

1.6

1.6

1.5

1.4

1.4

1.4

1.4

1.5

1.5

1.5

1.5

1.4

1.4

1.4

-

_

-

Mar.

1.4

1.5

1.5

1.7

1.8

1.7

1.8

2.0

2.1

2.1

2.5

2.2

1.9

1.7

1.7

1.6

1.7

1.8

1.7

1.7

al.7

al.7

al.7

al.7

al.7

al.8

al.8

al.8

1.8

2.1

2.3

Apr.

2.5

2.3

3.8

3.8

3.9

2.3

1.9

1.8

al.8

a2.0

a2.5

a3.0

3.6

3.0

2.1

2.1

2.0

1.7

1.8

2.1

2.5

1.8

1.8

1.8

1.4

1.6

1.7

1.7

1.6

1.5

-

May

1.6

1.4

1.3

1.3

1.4

1.4

32

106

140

69

35

5.5

2.1

2.0

1.9

1.8

1.8

1.7

74

341

468

521

600

595

329

16

7

3

3

3

3

June

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.4

.5

1.0

1.2

2.5

3.0

1.2

1.2

1.6

1.3

-

July

1.7

3.8

676

1,000

725

863

1,200

1,270

1,280

841

317

40

167

800

1,070

932

595

512

401

289

313

254

231

248

174

44

83

46

2.3

1.6

1.7

Aug.

1.5

1.5

1.5

1.5

1.7

2.3

2.2

1.7

1.6

1.8

3.0

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.3

1.3

1.4

1.3

1.3

1.3

1.2

1.2

1.1

1.1

1.1

1.1

Sept.

1.1

1.1

1.0

1.0

1.0

.9

.9

.9

.9

.7

.6

.6

.6

.4

.3

.3

.3

.3

.3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

a. 3

-

Month

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

Calendar year 1941 ......................

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

May

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

September. .................................

Water year 1941-42 ......................

Secondfoot-days

39.1

61,202.9

16.5

18,103.8

Maximum

15

2,040

3 9

1.1

1,280

Minimum

.1

.1

.3

.1

Mean

1.26

168

2 25

.55

49.6

Runoff in 

acre- feet

78

121,400

33

35,910

a No gage-height record; discharge Interpolated, 

b Stage-discharge relation affected by ice.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert var time to standard time, subtract 1 hour.
192 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Ward tunnel at Intake, Calif.

Location.- Water-stage recorders, concrete control, and venturl meter, lat. 37°17', long. 

118"58', in SEi sec. 36, T. 7 S., R. 27 E., in gate house at entrance to tunnel. 

Altitude of gages, about 7,350 feet (from topographic maps).

Records available.- April 1925 to September 1942.

Average discharge.- 16 years (1925-31, 1932-42), 243 second-feet.

Extremes.- Maximum dally discharge during year, 1,290 second-feet June 6; minimum daily, 

0.6 second-feet Dec. 6-8.

1925-42: Maximum daily discharge, 1,990 second-feet Apr. 30, 1926; no flow at 

times.

Remarks. Records excellent. Ward tunnel diverts water from Florence Lake, a reservoir 

on South Fork of San Joaquin River, to Huntington Lake for use in Big Creek power 

plants.

Cooperation.- Water-stage recorder graph, rating table for venturi meter, and 12 discharge measurements furnished by Southern California Edison Co. Ltd., In connection 

with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

444

448

446

443

400

359

358

354

352

349

347

346

346

344

341

338

336

334

334

334

333

371

390

386

385

383

381

380

376

375

370

Nov.

383

292

1.4

1.3

1.2

220

375

373

370

366

363

359

356

351

347

344

342

341

336

333

325

122

1.4

248

380

371

361

351

338

326

-

Dec.

314

298

63

7

7

6

6

6

7

7

.7

1S2

285

277

268

260

254

429

534

443

306

162

86

62

57

62

63

68

81

100

142

Jan.

167

167

151

129

108

99

95

92

85

85

89

93

94

94

86

80

72

71

68

67

66

68

72

85

94

128

141

135

118

118

107

Feb.

101

97

94

95

94

99

103

97

96

95

83

81

76

74

68

75

71

69

68

63

64

64

62

68

65

66

62

61

_

-

-

Mar.

63

70

73

79

96

106

102

118

134

130

138

146

129

106

105

114

111

120

115

105

103

109

111

106

95

91

91

97

113

136

164

Apr.

172

200

236

2S8

227

197

ISO

198

218

247

256

291

346

344

293

290

286

246

277

363

400

375

395

344

368

371

349

299

248

228

-

May

215

210

211

242

290

381

471

500

510

488

' 471

423

371

342

322

294

307

364

488

558

661

710

767

764

968

1,070

998

924

795

699

690

June

848

939

708

703

1,090

1,290

985

626

660

693

636

215

221

221

254

373

504

614

628

638

642

650

744

854

864

870

871

874

876

880

-

July

885

891

895

1,020

1,150

896

387

277

247

482

1,000

1,130

850

444

383

383

395

410

426

468

539

633

552

548

590

607

626

740

636

499

405

Aug.

333

383

383

259

275

344

390

388

366

366

466

495

457

428

356

296

286

272

264

264

262

262

262

262

301

390

443

460

484

480

450

Sept.

423

438

443

443

440

440

433

431

450

443

421

433

433

433

433

431

431

431

431

428

426

426

426

423

469

526

524

516

537

544

-

Month

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

Hay

Water year 1941-42 ......................

Secondfoot-days

4,801.3

117,398.8

3,124

2,211

3,376

8,532

16,504

20,971

19,403

11 , 177

13,506

123,766.6

Maximum

534

167

103

164

400

1,070

1,290

1,150

495

544

1,290

Minimum

.6

66

61

63

172

210

215

247

259

421

.6

Mean

289 

155

101

79.0

109

284

532

699

626

361

450

339

Runoff in 

acre-feet

9,520

5,200

4,390

6,700

16,920

32,740

41,600

38,490

22,170

26,790

245,500

Time basis_^ Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Ward tunnel at outlet, Calif.

193

Location.- Water-stage recorder, lat. 37°16', long. 119°09', In SEi sec. 5, T. 8 S., R. 

26 E., Just upstream from tunnel outlet at east end of Huntlngton Lake, 6 miles 

northeast of Big Creek. Altitude of gage, about 7,200 feet (from topographic map).

Records available.- November 1927 to September 1942. 

Average discharge.- 14 years (1928-42), 410 second-feet.

Extremes.- Maximum dally discharge during year, 1,890 second-feet June 6; minimum daily, 

50 second-feet Nov. 23.

1927-42: Maximum daily discharge, 2,080 second-feet June 21, 1935; minimum daily, 

2.6 second-feet Oct. 23, 1940.

Remarks.- Records good. Tunnel diverts water from Florence Lake to Huntington Lake. 

See record for Ward tunnel at intake on preceding page. Between intake and outlet, 

tunnel receives water diverted from Bear and Mono Creeks and at times from several 

other small tributaries of South Fork of San Joaquin River.

Cooperation.- Water-stage recorder graph furnished by Southern California Edison Co., 

Ltd., in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

478

478

472

472

439

396

398

394

389

388

384

382

382

378

378

375

371

370

370

374

382

407

435

437

433

426

428

423

422

412

414

Nov.

428

672

180

140

131

286

476

466

455

444

436

429

421

416

407

401

397

379

380

378

372

218

50

240

422

414

404

393

385

378

-

Dec.

367

399

387

174

212

175

151

134

128

118

104

233

368

361

358

351

328

498

639

525

384

270

185

144

145

156

155

166

185

221

277

Jan.

320

312

276

245

217

204

196

194

186

186

196

203

206

206

194

183

168

168

161

160

158

162

167

195

206

263

273

261

237

241

220

Feb.

212

202

198

202

202

210

213

206

2 OS

207

181

175

171

166

154

166

160

158

154

146

148

146

143

152

149

150

142

141

-

-

~

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ...................................

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

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

llnv nay ........................................

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

146

161

162

173

202

218

212

241

267

261

263

283

259

217

230

246

238

254

241

227

228

237

241

230

212

205

207

219

251

284

332

Apr.

330

394

448

496

411

370

351

389

426

466

473

549

674

659

567

584

567

491

576

758

818

773

821

706

780

757

708

613

531

499

~

Secondfoot-days

12,687

10,998

8,298

175,240

6,564

4,862

7,147

16,985

32,487

40,353

35,685

17,946

14,985

209,003

May

474

455

468

517

608

800

981

1,100

1,120

1,020

987

874

800

766

712

654

701

830

1,080

1,240

1,350

1,420

1,510'

1,450

1,650

1,750

1,700

1,610

1,380

1,210

1,270

Maximum

478

672

639

1,540

320

213

332

821

1,750

1,890

1,760

800

579

1,890

June

1,520

1,650

1,340

1,290

1,750

1,890

1,680

1,260

1,300

1,350

1,330

870

881

883

895

1,020

1,120

1.26C

1,260

1,270

1.27O

1,280

1,360

1,500

1,510

1,520

1,520

1,520

1,530

1,530

~

Minimum

370

50

104

50

158

141

146

330

455

870

757

405

455

50

July

,540

,540

,550

,620

,760

,580

,020

893

856

798

962

1,110

1,190

1,080

1,010

1,000

1,010

1,030

1,040

1,060

1,120

1,240

1,140

1,120

1,160

1,160

1,160

1,220

1,070

889

757

Aug.

701

670

656

536

564

649

681

676

651

674

767

eoo

764

717

627

544

510

480

458

444

426

415

407

405

426

512

555

550

581

567

533

Mean

409

367

268

480

212

174

231

566

1,048

1,345

1,151

579

500

573

Sept.

494

502

510

506

502

498

494

490

506

506

488

506

494

408

480

478

473

472

468

467

464

461

458

455

509

560

557

554

566

 579

-

Runoff in 

acre- feet

25,160

21,810

16,460

347,600

13,020

9,640

14,180

33,690

64,440

80,050

70,780

35,600

29,720

414,600

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
194 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Bear Creek near Vermilion Valley, Calif.

Location,.- Water-stage recorder, lat. 37°20', long. 118°58', In SWi sec. 12, T. 7 S.,

 R. 27 E., 2 miles upstream from mouth and 4 miles by trail south of Vermilion Valley. 

Altitude of gage, about 7,400 feet (from topographic nap).

Drainage area.- 53.5 square miles.

Records available.- November 1921 to September 1942.

Average discharge.- 18 years (1922-30, 1932-42), 87.0 second-feet.

Extremes.- Maximum discharge during year, 760 second-feet June 14 (gage height, 5.70

 feet); minimum, 6.5 second-feet Oct. 30.

1921-42: Maximum discharge, 1,530 second-feet July 21, 1936 (gage height, 6.90 

feet); minimum recorded, 1.2 second-feet Sept. 29 to Oct. 5, 1924.

Remarks.- Records fair. No storage or diversions above station.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished

 by Southern California Edison Co. Ltd., in connection with a Federal Power Commission 

project.

Rating table, water year 1941-48, except period of Ice effect (gage height, 

in feet, and discharge, in second-feet)

3.2 

3.4 

3.6 

3.8 

4.0

10

22

133

175

230

302

390

5.2 

5.4 

5.6

490

595

705

Discharge, in second-feet, water year October 1941 to September 1948

Day

1

2

3

4

5

6

Y

8

9

10

11

12

13

14

15

16

1Y

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

16

15

14

14

13

16

16

15

14

14

14

13

13

13

13

18

12

12

18

13

17

14

15

18

18

15

17

16

16

13

16

Nov.

18

37

42

 36

36

34

31

29

28

26

82

22

19

20

80

17

15

 b!2

1

-

Dec.

(*)

. b30

Jan.

(»)

 b30

Feb.

(»)

 b26

-

-

Month

October. ...................................

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

Decembe r ...................................

Calendar year 1941 ......................

January ....................................

February ........................ ..........

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

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

Unv May. .......................................

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

,.

(»)

 b40

/

Apr.

a44

a54

a 60

a58

a58

a 50

 53

61

66

68

66

87

101

98

80

92

79

70

98

189

119

108

110

96

113

96

87

73

68

60

~

Secondfoot-days

449

608

930

52,093

930

788

1,240

2,390

5,939

14,419

10,735

2,562

619

41,549

May

60

60

64

76

101

141

171

192

182

143

133

108

100

100

88

84

101

137

209

324

376

390

400

455

440

308

233

815

162

171

881

Maximum

18

42

727

_

_

_

129

455

600

590

128

30

600

June

2S3

898

247

368

465

475

440

480

515

568

590

584

578

595

595

535

573

600

551

500

50O

530

530

525

510

415

354

390

430

455

-

Mininum

18

_

_

_

44

60

247

128

30

13

-

July

480

a510

a525

a555

a590

a 565

a480

a435

a400

a468

a451

336

336

390

485

390

388

291

254

247

264

264

244

247

233

824

203

180

153

139

128

Aug.

113

103

96

98

113

119

110

108

110

188

186

119

115

110

98

93

85

80

74

67

60

56

53

52

49

47

42

38

37

33

30

Mean

14.5

20.3

30

143

30

86

40

79.7

192

481

346

88.6

20.6

114

Sept.

28

28

86

25

84

23

82

21

21

82

30

29

87

84

22

21

20

20

19

18

18

17

16

16

15

14

14

13

13

13

-

Runoff in 

acre-feet

891

1,210

1,840

103,300

1,840

1,440

8,460

4,740

11,780

28 1 600

21,290

5,080

1,230

82,40^

* Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of records for Ward tunnel, 

b Stage-discharge relation affected by Ice.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 195

Mono Creek near Vermilion Valley, Calif.

Location.- Water-stage recorder, lat. 37°22', long. 118°59', in SWi gee. 35, T. 6 S., R. 

27 E. (unsurveyed), 1 mile downstream from lower end of Vermilion Valley and 6 miles 

downstream from North Fork. Altitude of gage, about 7,400 feet (from topographic nap),

Drainage area.- 92.0 square niles.

Records available.- November 1921 to September 1942.

Average discharge.- 18 years (1922-30, 1932-42), 147 second-feet.

Extremes.- Maximum discharge during year, 1,170 second-feet June 15 (gage height, 7.73 

feet); minimum recorded, 23 second-feet Dec. 1.

1921-42: Maximum discharge, 1,760 second-feet June 2, 1938 (gage height, 8.62 

feet); minimum, 6.5 second-feet Dec. 22, 1939.

Remarks.- Records fair. No storage or diversions above station.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished 

by Southern California Edison Co. Ltd., in connection with a Federal Power Commission 

project.

Rating table, water year 1941-42, except period of ice effect (gage height, 

in feet, and discharge, in second-feet)

4.8

4.9

5.0

5.1

5.2

5.4 

5.6 

5.8 

6.0 

6.2

102

148

204

272

352

6.4 

6.6 

6.8 

7.0 

7.2

442

540

640

745

855

7.4 

7.6

970

1,090

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

29

28

28

28

28

30

34

30

29

29

28

28

28

27

27

27

26

26

27

29

35

33

35

39

36

34

37

35

35

29

34

Nov.

39

136

106

*82

77

74

70

67

60

55

52

49

46

45

42

41

37

b30

' b30

;

Dec.

(«)

' b65

/

Jan.

(*)

> b65

Feb.

(«)

' b55

1

-

-

'

Month

October. ...... ..... .......... ...........

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

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

Calendar year 1941 ......................

January. . . . . .............................

February ......... ...... ..... ............

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

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

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

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

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

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

September. . . ... ..........................

Water year 1941-42 ......................

Mar.

 >

(*)

> b60

J

57

52

49

49

49

51

60

67

75

Apr.

74

90

98

96

86

84

84

*111

126

129

131

153

183

174

158

171

161

151

177

214

220

223

226

204

223

210

198

177

166

156

~

Secondfoot-days

948

1,468

2,015

83,410

2,015

1,540

1,829

4,654

11,277

23,835

14,826

3,929

1,117

69,453

May

156

148

153

158

177

217

268

323

344

299

295

258

247

243

233

217

230

265

344

466

610

655

680

740

806

605

490

461

383

378

428

Maximum

39

136

1,160

_

_

_

226

806

1,000

770

177

52

1,000

June

510

565

490

595

750

822

806

745

844

922

970

940

934

952

1,000

922

940

970

916

838

806

844

850

866

838

685

590

605

650

670

~

Minimum

26

_

_

_

_

_

74

148

490

192

57

26

-

July

690

a708

a730

a750

8770

8740

a660

a620

a580

a640

a610

495

461

515

555

540

452

405

361

348

356

352

344

339

314

310

291

258

230

210

192

Aug.

177

164

158

153

171

174

166

161

161

169

169

169

174

166

143

138

124

120

113

109

98

90

86

86

84

82

75

68

65

59

57

Mean

30.5

48.9

65

229

65

55

59.0

155

364

794

478

127

37.2

190

Sept.

52

51

49

48

46

44

44

41

41

41

49

48

42

39

36

34

33

33

32

32

32

30

29

28

28

28

27

27

27

26

"

Runoff in 

acre- feet

1,880

2,910

4,000

165,500

4,000

3,050

3,630

9,230

22,370

47,280

29,410

7,790

2,220

137,800

Winter discharge measurement made on this day. 

a No gage-height record; discharge computed on basis of records for Ward tunnel, 

b Stage-discharge relation affected by ice.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
196 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESIJO RIVER 

Huntington Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°14', long. 119°13', in SWi sec. 14, T. 8 S. 

R. 25 E., in gate tower of dam 1 on Big Creek, 2 miles northeast of town of Big

Creek. Datum of gage is at mean sea level. 

Drainage area.- 79.0 square miles.

Records available.- October 1926 to September 1941. 

in Water-Supply Paper 881.

1913 to 1926 summary records only,

Extremes.- Maximum contents during year, 88,900 acre-feet July 7, 9, 22, 23 (elevation,

6,950.0 feet); minimum. P.T.Finn arrfi-fRRf. Anr. 1. ?. I f>"\ evnf.1 rm_ fi.RRR-F, f eel-. ).

1913-42: r._ 

feet); minimum,

Remarks.- Lake is formed by four dams; storage began Apr. 11, 1913. Dams were raised 

in 1914 ana again In 1917. Usable capacity, 88,800 acre-feet between elevations 

6,824.4 feet [center line of outlet tunnel) and 6,950 feet (spillway crest at dam 1) 

above mean sea level. Water Is used for povrer development In Big Creek plants. 

Records show contents at midnight, all of which is available for release.

Cooperation.- Record of contents furnished by Southern California Edison Co. Ltd., In 

connection with a Federal Power Commission project.

Contents, In acre-feet, water year October 1941 to September 1942

Day

1

Z

S

4

5

6

7

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.

87,900

87,900

87,800

87,900

87 , 900

87,800

87,700

87,600

87,500

87,400

87,300

87,500

87,400

87,300

87,200

87,000

86,900

86,700

86,700

86,600

86,500

86,400

86,400

86,400

86,500

86,700

86,800

86,600

86,800

86,800

86,700

Nov.

87,000

87,900

87,500

86,900

86,300

86,100

86,200

86,400

86,600

86,600

86,700

86,800

86,700

86,700

86,700

87,000

87 , 000

86,900

86,700

86,900

86,900

87,000

86,600

86,200

86,100

86,000

85,900

85,800

86,000

86,500

-

Dec.

86,600

86,800

87,400

86,700

86,100

65,400

84, COO

84,000

83,200

82,400

81,600

80,900

80,600

80,400

80,100

79,900

79,600

79,600

80,100

80,400

80,400

80,100

79,700

79,200

78,600

78,100

77,800

77,700

77,500

77,200

77 , 000

Jan.

76,900

76,600

76,300

76,000

75,500

75,000

74,400

73,800

73,400

72,900

72,500

72,100

71,600

71,200

70,500

70,000

69,400

68,900

68,200

67,600

66,900

66,300

65,700

65,500

65,500

65,200

65,000

64,700

64,200

63,800

63,400

Feb.

63,100

62,700

62,100

61,600

61,100

60,600

60,300

60,000

59,500

59,200

58,900

58,700

58,500

58 , 300

58,300

58,000

57,700

57,400

57,000

56,600

56,300

56,200

55,800

55,500

55,000

54,200

53,400

52,500

-

-

-

Mar.

51,800

50,900

50,300

49,700

49,000

48 , 300

47,600

46,800

43,800

40,800

37,900

35,100

32,800

31,600

30,600

29,800

29,200

28,700

28,100

27,500

26,900

26,500

26,100

25,500

24,900

24,200

23,600

22,900

22,500

22,100

21,800

Apr.

21,500

21,500

21,600

22,100

22,200

22,100

22,000

21,900

22,000

22,100

22,300

23,100

23,900

24,600

25,100

25,600

26,000

26,300

26,800

27,800

28,900

29,900

31,000

31,500

31,600

31,700

31,700

31,400

30,900

'30,300

-

May

29,800

29,700

30,000

30,400

31,200

31,400

31,900

31,800

31,900

31,600

31,600

30,900

30,100

30,300

30,300

29,900

29,700

30,000

30,600

31,700

33,200

34,900

36,700

39,000

41,500

43,800

45,600

47,200

48,100

49,000

50,600

June

52,600

54,400

55,600

57,300

60,200

63,200

65,700

67,300

69,100

71,100

72,900

73,700

74,300

75,000

75,500

76,000

76,800

77 , 500

78,200

78,600

79,100

79,400

79,700

80,100

80,500

80,700

80,600

80,900

81 , 000

81,400

-

July

82,500

83 , 500

84,800

86,100

87,600

88,700

88,900

88,800

88,900

88 , 500

88,500

88,700

88,600

88,800

88,800

88,700

88,700

88,700

88,800

88,800

88,700

88,900

88,900

88,800

88,800

88,800

88,700

88,800

88,700

88,400

88,000

Aug.

88,000

88,200

88,500

88,700

88,400

88,000

87,900

88,300

88 , 600

68,600

88,600

88,300

88,300

88,500

88,500

88,500

88,500

88,400

88,300

88,200

88,100

87,900

87,700

87,600

87,400

87,400

87,400

67,500

87,600

87,800

87,800

Sept.

87,700

87,700

87,700

87,700

87,700

87,700

87,600

87,500

87,500

87,500

87,500

87,500

87,600

87,700

87,700

87,700

87,700

87,800

87,700

87,900

87,800

87,700

87,500

87,300

87,300

87,300

87,400

87,500

87 , 500

87,600

-

Monthly elevation and contents, water year October 1941 to September 1942

Date

Dec . 31 ..................

Calendar year 1941.....

Sept. 30. .................

Water year 1941-42.....

Elevation 

(feet)

6,941.5

-

fi 'q,, 

6,949.11

-

Contents 

(acre-feet)

77 , 000

-

87,600

-

Change In contents 

during month 

(acre-feet)

-1 200

-9,500 '

+33,700

-200

-300

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 194E 

Pacific war time thereafter. To convert war time standard time, a 

tract 1 hour.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Big Creek below Huntlngton Lake, Calif.

197

Location.- Water-stage recorder, lat. 37°13'10", long. 119°12'50", in NWi sec. 23, T. 8 

S., R. 25 E., 800 feet upstream from Grouse Creek and 1,000 feet downstream from 

Huntlngton Lake. Altitude of gage, about 6,600 feet (from topographic maps).

Drainage area.- 80.0 square miles.

Records available.- June 1925 to September 1942 (records prior to October 1929, only for 

periods of spill from Huntlngton Lake).

Average discharge.- 13 years (1929-42), 1.35 second-feet.

Extremes.- Maximum and minimum discharge for year not determined; probably occurred during period of no gage-height record.

1925-42: Maximum discharge, 2,040 second-feet June 23, 1925 (gage height, 10.3 

feet), siphon spillways operating at Huntlngton Lake; minimum, 0.1 second-foot Sept. 

10-13, Oct. 7-18, Dec. 5-16, 1931.

Remarks.- Records fair. Natural flow of Big Creek is regulated at Huntlngton Lake and 

during most of year is diverted for power development at Big Creek powerhouse No. 1.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished by 

Southern California Edison Co. Ltd., In connection with a Federal Power Commission 

project.

Discharge, in second feet water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.4

1.0

1.4

.5

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.7

.6

.5

.5

.5

Nov.

0.8

1.1

.7

.6

.6

.6

.5

.5

.5

.5

.5

.5

.5

.5

.4

.5

.6

.5

.5

.5

.5

.5

.4

.4

.4

.4

.4

.4

1.0

.7

-

Dec.

0.6

.9

3.4

1.2

1.0

.8

.8

.7

.6

.6

.6

.5

.5

.6

.8

.9

.7

.7

.7

.6

.6

.6

.6

a. 6

Jan.

. aO.6

*. 6

.6

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

1.3

1.1

1.6

1.4

1.1

1.0

.9

Feb.

' aO.6

(»)

 b.6

-

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January. ...................................

February ........................ ..........

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

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

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

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

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

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

September ............. ......... .......

Water year 1941-42 ... ...........

Mar.

 bO.8

(«)

1

Apr.

1.8

2.0

2.6

3.8

2.5

2.3

2.4

 2.5

2.7

3.0

3.2

3.7

3.8

3.8

3.4

3.2

3.0

3.0

3.4

3.8

3.9

3.7

3.7

3.9

4.2

4.2

4.0

3.6

3.3

3.1

-

Secondfoot-days

15.1

16.5

23.8

585.6

23.2

16.8

24.8

97.5

151.6

90.2

60.8

18.6

12.0

550.9

May

3.2

3.2

3.6

3.8

4.2

4.5

5

5.5

5.5

4.9

.8

.5

.4

.3

.5

.3

.6

.8

5.5

5.5

6

6

5.5

5.5

6

6

5.5

5.5

5

5

5

Maximum

1.4

1.1

3.4

15

1.6

_

4.2

6

4.9

_

_

-

June

.9

.S

.7

.5

.5

.3

.2

.2

.0

.8

.7

.4

3.2

3.0

2.9

2.7

2.6

2.4

2.4

2.2

2.1

2.0

1.9

1.8

1.8

1.8

1.7

1.6

1.6

1.5

-

Minimum

0.4

.4

.5

.4

. 6

_

1.8

3.2

1.5

_

_

-

July

1.4

1.4

' a2.0

Aug.

 aO.6

Mean

0.49

.55

.77

1.60

.75

.6

.8

3.25

4.89

3.01

1.96

.6

.4

1.51

Sept.

 aO.4

Runoff in 

acre-feet

30

33

47

1,160

46

33

49

193

301

179

121

37

24

1,090

* Winter discharge measurement made on this day.

a No gage-height record; discharge interpolated.

b Stage-discharge relation affected by ice.

Note.- No gage-height record July 3 to Sept. 30, station 

discharge furnished by Southern California Edison Co. Ltd.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

To convert war time to standard time, subtract 1 hour.

ntled for rebuilding; estimate of 

:ime thereafter.
198 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Pitman Creek below Tamarack Creek, Calif.

Location.- Water-stage recorder, lat. 37°12', long. 119°12', in NWi sec. 35, T. 8 S., R. 

25 E., 500 feet downstream from Tamarack Creek, 3 miles upstream from mouth, and 3 

miles southeast of town of Big Creek. Altitude of gage, about 7,100 feet (from topographic map).

Drainage area.- 22.0 square miles.

Records available.- December 1927 to September 1942.

Average discharge.- 14 years, 39.2 second-feet.

Extremes.- Maximum discharge during year, 932 second-feet May 25 (gage height, 7.75 feet), 

from rating curve extended above 520 second-feet by logarithmic plotting; minimum, 0.3 

second-foot Sept. 26-30.

1927-42: Maximum discharge, 2,320 second-feet Dec. 11, 1937 (gage height, 9.65 

feet), from rating curve extended above 1,000 second-feet on basis of velocity-area 

studies; no flow part of Nov. 24, 1930, and during period Oct. 15-18, 1931.

Remarks.- Records good except those for periods of ice effect or no gage-height record, 

and those below 2 second-feet, which are fair. No diversions above station; practically all flow diverted below station to Iluntington-Shaver conduit.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished by 

Southern California Edison Co. LtO., in connection with a Federal Power Commission 

project.

Rating table

1.8

1.9

2.0 

2.2 

2.4 

2.6

bar year 1941-42, except period of Ice effect (gage height, In

feet, and discharge, In second-feet) 

(Shifting-control method used Sept. 14-30)

0.2 

1.0 

2.4

2.8 

3.0 

7.2 

5.4 

5.6 

3.8

4.0 

4.4 

4.8 

5.2 

5.6 

6.0

108

146

192

256

336

428

6.4 530

6.8 640

7.2 760

7.S 94S

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.9

.9

.9

1.0

1.0

.1

.1

.1

.1

.0

.0

.0

1.0

.9

.8

.t

.8

.8

.9

1.1

1.3

1.3

1.3

1.3

1.4

1.3

1.7

2.0

1.6

1.3

1.1

Nov.

1.7

6

3.6

2.3

2.1

l.S

1.7

1.6

1.6

1.4

1.4

1.4

1.3

1.3

1.3

1.3

1.7

2.0

1.8

1.7

1.7

1.6

1.6

1.7

1.7

2.0

1.8

1.8

b7

b6

-

Dec.

t>5

b6

59

19

13

11

«10

9

6.5

6

 b6

Jan.

(*)

b6

1 «

i

b!2

Feb.

10

10

11

11

11

11

11

11

10

*10

10

10

alO

11

11

11

10

10

9.5

9.5

9.5

10

9.5

9.5

9.5

9

8.5

8.5

-

-

-

Mar.

8.5

9

9

9.5

11

12

12

15

17

17

19

17

16

15

a!4

14

15

17

17

17

17

19

20

19

18

16

17

18

21

26

29

Apr.

30

38

46

69

55

46

48

56

59

66

75

93

112

109

86

81

75

72

92

115

128

123

112

122

145

143

132

104

86

76

-

May

73

70

77

93

122

157

198

238

251

227

184

144

126

123

121

114

135

195

282

373

428

440

428

457

480

532

387

340

265

282

351

June

382

349

343

411

450

433

369

349

382

378

360

338

314

302

284

254

249

230

208

180

171

164

154

141

127

111

97

95

93

87

-

July

81

75

69

62

55

48

44

40

36

32

30

27

24

23

21

21

19

19

17

15

13

12

11

12

9.5

8.5

7.5

7

6.5

6

5.5

Aug.

5

4.7

4.4

4.2

3.8

3.6

3.4

3.0

2.8

3.0

3.2

a2.9

a2.6

a2.4

a2.2

a .0

.8

.6

.6

.4

.4

.3

.1

.1

.1

.1

.1

.1

.1

1.1

1.1

Sept.

1.0

1.0

1.0

.9

.9

.9

a. 9

a. 9

a. 8

a. 8

a.S

a.

a.

.3

.3

.3

.3

.3

-

Month

Water year 1941-42 . . ...................

Secondfoot days

20,420.6

Maximum

537

532

532

Minimum

0.3

Mean

2 20

7 32

0*7 Q

55.9

Runoff in 

acre-feet

40,510

Winter discharge measurement made on this day. 

a No gaf^e-helght record; discharge Interpolated, 

b Stage-discharge relation affected by Ice.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; 

To convert war time to stnndard time, subtract 1 hour.

ar time thereafter.
SAN JOAQUIN TRIBUTARIES ABOVE FRESNO RIVER 199 

Shaver Lake near Big Creek, Calif.

Location.- Water-stage recorder, lat. 37°09', long. 119°18', In SEi sec. 13, T. 9 S., R. 

24 E., at dam on Stevenson Creek and 6 miles southwest of town of Big Creek. Datum 

of gage is at mean sea level.

Drainage area.- 29.7 square miles.

Records available.- January 1927 to September 1942.

Extremes.- Maximum contents during year, 135,500 acre-feet July 8, 21, 22, 24, 27 (eleva- 

 tion, 5,370.1 feet); minimum, 652 acre-feet Mar. 7 (elevation, 5,249.4 feet).

1927-42: Maximum contents, 135,600 acre-feet July 23, 1936 (elevation, 5,370.1 

feet); minimum, 1,130 acre-feet Mar. 16, 1935 (elevation, 5,254.0 feet).

Remarks.- Lake is formed by concrete-arch dam; completed and storage began in 1927. 

Usable capacity, 135,300 acre-feet between elevations 5,225 feet (trash-rack foundation) and 5,370 feet (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 show contents at midnight, all of which 

is available for release.

Cooperation.- Record of contents furnished by Southern California Edison Co. Ltd., in 

connection with a Federal Power Commission project.

Contents, In acre-feet, water year October 1941 to September 1942

Day

1

2

S

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

Oct.

90,600

89,800

89,100

88, 200

87,500

86,700

85,700

84,800

33,900

83,100

82,300

81,900

81,100

80,200

79,200

78,300

77,400

76 , 500

76, 200

75,600

75,100

74,200

73, 400

72,600

71,700

71,500

70,900

70,200

69,500

68,800

68,000

Nov.

67,400

67,500

67,100

66,700

66,400

66,200

66,000

66,900

66,700

65,300

65,200

64,400

63,700

63,000

62,300

61,900

61,200

60,400

59,600

59,500

59,200

59,200

58, 800

58,000

57,200

56,400

55,500

54,700

54,200

54,300

-

Dec.

53,500

53,000

53,700

53,500

53,500

53,500

53,600

53,500

53, 400

53,300

53,300

53,200

52,800

52, 800

52,500

52,400

51,900

51,200

50,400

49,700

49 , 300

48,400

47,600

46 , 700

46,500

45,800

45,200

45, 100

44,600

44,000

43,400

Jan.

43,100

42,400

41,700

41,300

40,500

39,700

38,900

38,000

37,300

36,700

36,600

35,900

35,200

34,500

33,700

33,000

32,300

32,100

31,300

30,600

29 , 800

29,200

28,500

28,000

28,200

27,600

27,400

26,900

26,300

25, 600

25,100

Feb.

25, 100

24,500

23,900

23,300

22,700

22, 100

21,600

21,500

20,600

19, 800

18,800

17,600

16,700

15,700

14,700

13,600

12,600

11,400

10,400

9,290

8,270

7,230

6,160

5,190

4,560

4,020

3,470

3,120

-

-

-

Mar.

3,160

2,420

1,580

945

780

668

652

1,040

3,590

6,060

9,000

11,800

14,000

15, 100

16,100

16,700

16,800

17,000

17,200

17,300

17,500

17,700

17,900

18,000

18,100

18, 200

18,400

18,500

18,800

19,000

19, 100

Apr.

19, 400

19,600

20,300

21,300

21,900

21,900

21, 400

20,900

20,500

20,100

19,800

20,000

19,900

20,100

19,900

19,600

19,300

19,000

19,100

18,900

18,700

18,400

18,100

18,100

18,800

19, 500

20,300

20,900

21,400

21,900

-

May

22,400

22,500

22,600

22,300

22,000

22,800

23,900

26, 100

28, 300

30,600

32,800

34,700

36,400

36,800

37, 700

38, 400

39,700

40,900

42,700

44,900

47,300

49, 700

52,000

54,600

57,500

60, 100

62,400

64,600

66,400

68,300

70,700

June July

72,900

75,200

77,400

79,700

82,000

84,300

86,900

89,400

91,700

94,000

96,200

9S, 400

100,600

102,900

105,100

107,100

109,200

111,100

113,t)00

114,900

117,000

119,000

120, 800

122,600

124,400

126,100

127,700

129, 600

131,300

132,700

-

133,300

133, 800

134,000

134,300

134,900

135, 400

135, 400

135, 500

135, 200

135,200

135,000

135, 000

135,300

135,400

135,400

135, 400

135, 400

135, 400

135, 400

135, 400

135,500

135,500

135,400

135, 500

135, 400

135, 400

135,500

135,400

135,300

135, 000

134,800

Aug.

134,000

132,800

131,800

130,600

129, BOO

129,300

128,600

127,400

126,400

125,800

125,100

124,800

124,300

123,400

122,500

121,600

120,500

119,400

118,200

117,000

115,800

114,600

113,400

112,300

111,100

109,900

108,700

107,500

106,300

105,100

103,900

Sept.

102,700

101,500

100,300

99,200

98,000

96,800

95,600

94,400

93,200

92,000

90,900

89,700

88,500

87,300

86,100

B5, 000

83,900

82, 700

81,500

80,500

79,400

78,400

77,300

76,200

75, 100

74,100

73,300

72,200

71,100

70,000

-

Monthly elevation and contents, water year October 1941 to September 1942

Date

Oct. 31.................

Calendar year 1941....

Sept. 30.. ...............

'Tater year 1941-42. . . .

Elevation 

(feet)

5,348.3

5,325.5 

5,317.4

5,301.1 

5,264.7 

5,294.4 

5,297.7 

5,336.3 

5,368.8 

5,369.8 

5,354.8 

5,335.9

-

Contents 

(acre-feet)

91,400 

68, 000 

54,300 

43, 400

25, 100 

3,120 

19,100 

21,900 

70,700 

132,700 

134,800 

103,900 

70,000

-

Change In contents 

during month 

(acre-feet)

-23,400 

-13,700 

-10,900

+8,500

-18,300 

-21,980 

+ 15,980 

+2,800 

+48,800 

+62,000 

+2,100 

-30,900 

-33,900

-21,400

Time basis; Pacific standard time prior to 2 a.m., Peb. 9, 1942; Pacific 

ar time thereafter. To eonvart war time to standard time, subtract 1 hot
200 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

Huntington-Shaver conduit at outlet, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°10', long. 119°14', In 

SWt sec. 10, T. 9 S., R.- 25 E., at tunnel outlet, 4 miles south of town of Big Creek. 

Altitude of gage, about 6,680 feet (from topographic map).

Records available.- October 1928 to September 1942. 

Average discharge.- 13 years (1929-42), 180 second-feet.

Extremes.- Maximum dally discharge during year, 1,610 second-feet May 26; minimum, 2.6 

second-feet Oct. 8-20.

1928-42: Maximum dally discharge, 1,7EO second-feet June 3, 4, 1938; minimum, 1.5 

second-feet Sept. 12-16, 1934.

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

Conduit diverts water from Huntlngton Lake to Shaver Lake, with additions from Pitman 

Creok and seepage en route.

Cooperation.- Water-stage recorder graph and 16 discharge-measurements furnished by 

Southern California Edison Co. Ltd., In connection with a Federal Power Commission 

project.

Discharge, in second feet, water year October 1941 to September 1942

Daj

1

2

3

4

5

6

7

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.

2.7

2.7

2.7

2.7

2.7

2.7

2.7

a2.6

a2.6

a2.6

a2.6

a2.6

a2.6

a2.6

a2.6

B2.6

a2.6

a2.6

a2.6

a2.6

B3.6

a3.7

a3.8

3.9

3.9

3.9

4.1

4.7

4.1

3.9

3.9

MOT.

4.1

10

7.5

5.5

4.7

4.4

3.9

3.7

3.7

3.7

3.5

3.5

3.5

3.5

3.5

3.7

3.9

3.7

3.5

3.3

3.3

3.3

3.3

3.3

3.5

3.5

3.7

3.7

8.5

9

-

Dec.

7

e.s

60

20

15

12

11

9.5

9.5

9

8

8

7.5

7.5

8

9

9

9

9

8.5

8

8

a

8

8

8

8

8

8

9

10

Jan.

11

9.5

8

8

8

8

8

8

8

8

8.5

9

9

9

9

9

9

9

9

9

9

9

10

10

12

14

16

16

15

14

13

Feb.

13

13

13

13

13

13

13

13

12

12

12

a!2

a!2

a 12

a!2

12

12

11

11

11

11

11

11

11

all

all

all

all

_

-

-

Mar.

all

all

12

12

14

28

41

253

1,340

1,310

1,280

1,250

950

a440

a400

a200

a20

al8

a!8

a20

a20

a22

22

22

20

18

19

20

24

27

32

Apr.

33

39

47

71

60

48

51

59

60

68

77

94

113

111

88

83

78

73

95

117

132

126

117

505

650

650

636

595

561

542

-

May

528

282

93

106

128

705

815

1,360

,360

,360

,320

,240

,160

555

724

739

802

880

1,250

1,420

1,520

1,540

1,540

1,560

1,580

1,610

1,510

1,490

1,320

1,310

1,360

June

1,430

1,550

1,540

1,580

1,600

1,590

1,570

1,560

1,580

1,580

1,570

1,560

1,540

1,540

1,520

1,500

1,480

1,470

1,460

1,430

1,430

1,420

1,410

1,400

1,390

1,380

1,360

1,360

1,360

1,220

-

July

776

747

631

666

733

661

554

559

421

559

479

596

785

502

595

605

602

602

600

61B

615

595

595

595

592

592

592

589

523

485

483

Aug.

226

38

40

S

215

388

209

7

94

216

276

463

295

154

167

121

34

20

. .7

 7

.4

.4

.4

.1

.1

.1

.1

.1

.9

.7

.5

Sept.

3.3

3.3

3.1

3.1

2.9

2.9

2.9

2 9

2\9

2.9

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

-

Month

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

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

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

Ifav

Water year 1941-42 ......................

Secondfoot days

37,6.0

5,779

44,380

114,173.5

Maximum

60

16

13

1,340

650

1,600

1.610

Minimum

7

2.6

8

11

11

33

1,220

2.6

Mean

10.8

266

10.1

11.9

254

193

1,479

601

97.6

313

Runoff in 

acre-feet

191

262

666

192,600

619

660

15,620

11,460

88,030

36,950

6,000

226,500

a No gage-height record; discharge computed on basis of unmiblished records of p itman Creek 

shaft and Hun*lngton-3haver tunnel at Intake.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

'To convert war time to standard time, subtract 1 hour.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 301

Willow Creek below Crane Valley Reservoir, Calif.

Location.- Water-stage recorder, lat. 37°17', long. 119°32', in SEi sec. 26, T. 7 S., 

R. 22 E., about 1,500 feet downstream from Crane Valley Reservoir spillway. Altitude 

of gage, about 3,200 feet (from topographic .map).

Drainage area.- 50.8 square miles.

Records available.- May 1940 to September 1942.

Extremes.- Maximum discharge during year, 478 second-feet June 1 (gage height, 4.64 

reet); minimum, 0.4 second-foot Aug. 22 to Sept. 8.

1940-42: Maximum discharge, 847 second-feet Feb. 11, 1941 (gage height, 5.85 

feet); minimum, 0.1 second-foot Nov. 13-16, 1940.

Remarks.- Records good above 150 second-feet and fair below. Flow regulated by Crane 

Valley Reservoir, capacity 45,000 acre-feet, and diversion into Pacific Gas & Electric 

Co. conduit No. 3 near Crane Valley Reservoir. (See following page.)

Cooperation.- Water-stage recorder .graph and several discharge measurements furnished 

by Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet) 

Oct. 1 to Jan. 25 Jan. 25 to Sept. 30

2.5

4.8

8.5

14

0.9 2.0

1.2 5.3

1.5 12

1.8 22

2.1 40

2.4 66

2.7 99

3.0 140

3.3 188

3.6 241

3.9 300

4.3 392

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.7

.7

.7

.7

.7

.7

.7

.7

.7

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.6

.6

.7

.6

.6

.6

.6

Nov.

0.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.8

.8

.8

.7

'.<3

.7

-

Dec.

0.7

.S

2.2

.8

.8

.7

.7

.7

.7

.7

.7

.6

.6

1.0

1.0

1.3

.9

.8

.8

.8

13

.6

.7

.6

.5

9

1.9

3.9

6.5

3.8

1.6

Jan.

1.3

1.2

1.1

1.1

1.0

1.0

1.1

1.1

1.1

1.0

.9

.9

.8

.8

.8

.8

.8

.7

.7

.7

.7

1.3

.9

1.7

83

181

196

227

196

140

63

Feb.

34

34

31

40

85

142

212

202

180

133

112

57

1.4

17

88

95

45

1.2

.2

.1

.3

.5

.2

.2

.2

.2

.2

.1

_

.

-

Mar.

50

72

69

67

65

64

65

67

69

68

78

116

132

129

129

126

118

115

113

112

113

115

112

103

82

62

19

1.2

1.1

1.2

61

Apr.

94

92

89

221

286

266

225

13S

112

115

126

186

207

323

337

373

233

37

1.0

105

101

103

103

93

.9

»8

184

234

232

234

-

May

198

14S

137

241

152

108

110

99

99

29

109

111

112

98

50

101

170

166

46

84

183

184

169

87

180

319

367

230

121

20

1.0

June

290

144

144

282

207

172

258

266

200

171

181

257

248

163

165

165

160

148

148

148

163

189

119

94

108

108

113

113

104

85

-

July

78

58

58

63

68

67

102

135

136

112

.7

.6

96

92

22

102

102

36

.5

.5

.5

.5

.5

.5

.5

.5

.6

.5

.5

.5

.5

Aug.

0.6

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

.5

56

Sept.

0.

.5

.5

.5

.5

.5

.5

.5

.6

.6

.6

.6

.6

.6

.6

.6

.6

.7

.7

.7

.7

.7

.6

-

Month

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

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

September. . ...............................

Water year 1941-42 ......................

Secondfoot-days

2 494 5

16.2

20,83.9.8

Maximum

373

.7

373

Minimum

.4

.4

Mean

1.92

.54

57.1

Runoff in 

acre- feet

118

32

41,340

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

time to standard time, subtract 1 hour.

530350 O - 43 - 14
2Q2 SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER

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

Location.- Water-stage recorder, lat. 37°17', long. 119°32', In SEi sec. 26, T. 73., R. 

22 E., about 1,000 feet downstream from Crane Valley Dam and powerhouse. Altitude of 

gage, about 3,300 feet (from topographic map).

Records available.- October 1940 to September 1942.

Extremes.- Maximum dally discharge during year, 146 second-feet Jan. 5, 6; no flow at 

times.

1940-42: Maximum dally discharge, 159 second-feet Aug. 22, 27, 31, 1941; no flow 

at times during each year.

Remarks.- Records good. Conduit diverts from Crane Valley Reservoir In sec. 26, T. 7 S., 

R. 22 E. Water passes through Crane Valley powerhouse, then to powerhouse No. 3 and 

eventually returns to Willow Creek.

Cooperation.- Water-stage recorder graph and three discharge measurements furnished by 

Pacific Gas & Electric Co., in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

72

75

38

74

17

74

73

73

75

74

14

11

75

73

67

68

69

19

18

70

68

66

68

67

26

18

36

109

129

99

20

Nov.

12

99

53

5.5

12

11

32

18

14

30

14

22

14

19

18

35

62

24

12

10

8

8

28

29

9

18

18

24

79

69

-

Dec.

31

62

47

37

40

41

44

81

81

72

65

61

42

84

90

81

54

86

63

48

54

117

104

64

25

46

57

31

64

80

127

Jan.

50

107

128

104

146

146

134

110

113

22

33

100

100

98

100

98

37

37

104

94

97

87

89

13

0

67

86

91

94

89

87

Feb.

16

86

89

B8

89

64

22

0

34

53

.3

23

86

18

3.8

87

83

96

106

133

90

5.5

22

95

85

96

88

 7Q

1

Mar.

11

61

54

47

50

28

16

0

49

84

38

40

89

71

42

88

88

59

38

38

0

19

95

88

92

93

89

17

16

88

97

Apr.

91

96

99

53

22

56

97

94

98

87

34

0

86

11

0

0

3.6

11

11

3.6

0

0

0

12

0

0

0

0

0

0 -

May

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

14

11

0

6

0

4.7

7.5

12

4.1

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

.2

0

0

0

0

.4

.4

.4

.4

-

July

0.4

.4

.4

.4

.5

-6

.5

.4

.4

0

0

0

9

11

72

.6

.4

.3

6

98

91

91

94

94

75

45

104

103

97

99

99

Aug.

100

0

103

104

103

103

102

102

47

105

112

104

105

104

97

37

93

95

87

87

40

90

27

95

95

94

95

94

92

24

89

Sept.

70

49

47

48

22

12

19

54

50

50

7

15

20

21

98

95

94

94

18

32

97

96

96

95

94

5.5

4.6

98

95

94

-

Month

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

Water year 1941-42 ......................

Secondfoot-days

1 835

1 ' 979

17,240.8

Maximum

99

146

Minimum

0

Mean

59 26*92

1 91

47.2

Runoff In 

acre- feet

*

280

1 920

34,210

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert war time to standard time, subtract 1 hour.
SAN JOAQUIN RIVER TRIBUTARIES ABOVE FRESNO RIVER 

Fine Gold Creek near Frlant, Calif.

203

Location.- Water-stage recorder, lat. 37°03', long. 119°39', In NWi sec. 14, T. 10 S.,

R. 21 K., 1,000 feet downstream from Willow Creek, li miles upstream from mouth, and

5i miles northeast of Frlant. Altitude of gage, about 680 feet (from topographic

map).

Drainage area.- 89.2 square miles. 

Records available.- October 1936 to September 1942. 

Extremes.- maximum discharge during year, 1,950 second-feet Dec. 30 (gage height, 9.34

feet); no flow Aug. 18 to Sept. 7.

1936-42: Maximum discharge, 10,300 second-feet Mar. 12, 1938 (gage height, 20.4

feet, from floodmarks), from rating curve extended above 6,500 second-feet; no flow

at times. 

Remarks.- Records good except those above 200 second-feet, which are fair. No storage

or diversions above station. 

Cooperation.- Records collected and prepared In cooperation with Division of Water

Resources, Department of Public Works, State of California.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet)

Oct. 1 to Map. 14

1.3

1.4

2.0 

2.2

1.5 

2.7 

5.5

2.6 

3.0

Map. 15 to Sept. 30

141

207

332

442

552

792

984

0.6 

.7

.85 

.9

1.0

1.1

1.2

1.3 

1.5

1.5

2.5

5.0

8.0

16

1.8

2.1

2.2 

2.4 

2.7

32

52

60

82

120

3.0 

3.5

4.0 

4.5

164

250

342

442

Note.- Same as preceding table above 4.5 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

al.5

al.5

al.5

al.5

2.5

3.3

3.3

3.3

3.3

3.0

3.0

3.3

3.5

3.8

3.5

3.5

3.3

3.3

3.5

4.4

4.9

5

4.9

4.9

6

6

8.5

7.5

6

6

5

Nov.

5

6

6

6

6

5.5

5.5

5

4.9

4.9

5

5

4.9

5

5.5

6

7

7

6.5

6

6

6

6

6

6

6

6

6

10

15

Dec.

9

8

42

26

12

9

8

7.5

8

12

10

8

8

11

33

30

34

19

14

13

13

12

14

15

13

21

50

306

602

965

488

Jan.

297

162

119

97

85

75

70

71

66

61

56

52

49

45

43

41

40

38

35

34

33

45

61

88

373

141

197

166

117

97

87

Feb.

79

86

76

75

132

239

439

191

141

122

106

100

94

80

75

71

67

65

62

60

63

134

82

77

78

68

64

58

_

-

Mar.

54

53

52

49

47

46

44

42

42

44

176

102

88

166

345

186

150

140

124

110

99

93

86

84

80

74

70

68

66

63

59

Apr.

58

58

62

130

114

89

72

64

60

65

63

57

54

276

132

95

126

92

80

72

68

66

63

58

56

54

54

77

61

55

-

May

112

84

63

58

54

50

46

44

43

43

51

50

44

43

45

. 44

40

37

34

33

30

28

27

26

27

44

31

28

26

25

24

June

22

20

19

18

17

16

15

15

14

13

12

11

10

9

9

9

7.5

7.5

7

7

7

6.5

6

5.5

5.5

6

6

5.5

5

4.5

-

July

4.0

3.2

3.0

3.0

3.2

3.0

2.5

2.3

2.3

2.2

3.0

2.2

2.0

1.8

1.8

1.9

1.9

1.8

1.7

1.4

1.5

1.4

1.7

1.3

.9

.8

.6

.6

.6

.6

.6

Aug.

0.5

.5

.4

.4

.3

.2

.2

.1

.1

.1

.2

.3

.2

.2

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

0

0

0

0

0

0

0

.1

.4

.6

.6

.6

.6

.4

.4

.2

.2

.2

.3

.2

.1

.1

.2

.1

.1

.2

.4

.6

.6

.9

-

Month

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

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

September. ............................... .

Water year 1941-42 .... .................

Secondfoot-days

2 431

8.1

16,109.1

Maximum

965

1,300

439

112

22

.9

965

Minimum

4.9

7.5

.8

58

42

24

4.5

0

0

Mean

4.02

6.19

91.0

84.1

04 o

107

93.6

43.0

10.5

.13

.27

44.1

Runoff in 

acre feet

247

368

5,590

60,870

5,830

5,920

5,760

2,650

626

117

7.9

16

31,950

e-neirm. record; discharge interpolated. 

is; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

war time to standard time, subtract 1 hour.

war time thereafter.
204: FRESNO RIVER BASIN

Fresno River near Knowles, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°14', long. 119°46', In 

NW-fr sec. 15, T. 8 S., R. 20 E., at Fresno Crossing, 0.1 mile downstream from Bean 

Gulch and 6 miles northeast of Knowles. Altitude of gage, about 1,140 feet (from 

topographic map).

Drainage area.- 132 square miles.

Records available.- September 1911 to December 1913, November 1915 to September 1942.

Average discharge.- 27 years (1911-12, 1916-42), 82.9 second-feet.

Extremes.- Maximum discharge during year, 1,810 second-feet Dec. 29-30 (gage height, 4.09 

feet), minimum, 4.0 second-feet Sept. 21, 23, 24 (gage height, 1.03 feet).

1911-13; 1915-42: Maximum discharge, 7,630 second-feet Mar. 12, 1938 (gage height, 

8.67 feet); no flow at times In 1919, 1924, 1926, 1928-31, 1933-34.

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

Water Is diverted Into Fresno River Basin above station from San Joaquln and Merced 

River Basins. Small diversions above station for Irrigation.

Rating table, water year 1941-42 (gage height, In feet, and discharge. 

In second-feet)

1.0

1.1

1.2

1.3

1.4

3.0

6.3

11.5

20

1.5

1.6 

1.6 

2.0 

2.3

152

238

385

2.6 

3.0 

3.4 

3.8

56O

830

1,16O

1,520

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

10

10

10

10

11

12

12

12

12

12

11

12

12

12

12

12

12

12

14

17

18

18

17

23

19

26

33

23

20

19

Nov.

19

30

40

28

23

22

19

18

18

18

17

17

17

17

17

17

23

23

19

18

17

17

17

17

17

17

17

17

26

40

-

Dec.

25

22

129

73

3S

28

23

22

20

23

23

20

20

26

100

73

87

51

38

36

38

33

38

40

35

40

70

800

1,300

1,200

750

Jan.

400

250

170

140

120

120

95

100

95

85

80

75

70

65

60

60

55

55

50

50

50

55

80

110

600

250

350

350

210

170

150

Feb.

130

140

140

130

220

400

600

300

210

190

170

160

150

130

120

110

110

100

100

95

100

250

180

152

145

138

134

127

_

_

-

Mar.

123

123

120

113

110

110

106

106

103

106

426

350

250

350

600

400

350

300

280

250

240

220

210

200

190

180

170

160

160

150

150

Apr.

140

140

150

300

250

210

190

180

170

180

190

170

150

500

300

250

320

270

230

220

210

200

200

190

180

180

180

300

260

230

-

May

400

350

300

260

230

210

200

180

180

170

190

250

200

180

203

203

181

169

194

198

194

194

190

180

170

250

200

180

170

160

150

June

150

140

140

130

130

130

120

120

120

120

110

110

110

110

100

100

100

95

95

95

90

90

90

85

85

85

85

85

80

80

-

July

80

75

75

75

70

70

68

6S

66

66

64

64

64

64

62

62

62

60

57

55

53

49

40

19

17

15

14

14

14

13

13

Aug.

13

12

13

12

12

10

9.5

9

8.5

10

12

13

15

14

12

13

13

14

10

9.5

10

9

9

8.5

8

9

9

9

10

10

9.5

Sept.

8.5

8.5

9

9.5

8.5

7.5

7

6.5

6.5

6.5

6.5

6.5

5.5

5.5

5.5

5

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

4.6

5

7

7.5

8.5

9

-

Month

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

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

Water year 1941-42 ......................

Secondfoot-days

5,221

190 " 9

40,934.4

Maximum

40

1,300

1,740

600

600

500

80

1,300

Minimum

10

17

20

10

50

140

SO

13

4.6

Mean

15.0

20.7

168

168

147

221

106

51.2

10.8

112

Runoff in 

acre- feet

920

1,230

10,360

121,600

9,060

9,780

13,300

13,170

12,860

6,310

3,150

665

81,180

NQte.- No gage-height record Dec. 24 to Feb. 23, Mar. 12 to May 14, May 23 to July 17; discharge 

computed on basis of records for Chowchllla River at Buchanan Dam Site and Pine Gold Creek near 

Frlant.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
CHOWCHILLA RIVER BASIN 205

Chowcliiila River at Buchanan dam site, Calif.

Location.- Water-stage recorder, lat. o7°13', long. 120°00', in SW-i sec. 22, T. 8 S., 

R. 18 E., 1.4 miles upstream from Raynor Creek and 5 miles west of Raymond. Altitude 

of gage, about 390 feet (from topographic nap).

Drainage area.- 238 square miles.

Records available.- October 1921 to September 1923, October 1950 to September 1942.

Average discharge.- 12 years (1930-42), 130 second-feet.

Extremes.- Maximum discharge during year, 5,800 second-feet Dec. 29 (gage height, 9.98 

feet); minimum, 0.3 second-foot Aug. 23.

1921-23, 1930-42: Max imam discharge, 18,900 second-feet liar. 2, 1938 (gage height, 

14.4 feet, from floodmarks), from rating curve extended above 5,000 second-feet; no 

flow for part of each year except 1937, 1938, 1940, 1941, and 1942.

Remarks.- Records good except those below about 20 second-feet, which are fair. Ho 

large diversions above station.

Rating table, water year 1941-42 (gage height, in feet, and discharge, in 

(Shifting-control method used July 18 to Sept. 30)

1.0

1.1

1.0 

1.7 

2.6

1.2

1.3

1.4

1.5

1.6

3.8 

5.2

9. a 

12.5

1.7 

1.9 

2.1 

2.3 

2.5

16. a

26

38

2.7 

3.1 

3.6 

4.0 

4.4

14a 

228 

318 

430

econd-feet)

4.8

5.2 

5.8 

6.8 

7.9

aes

740

1,060

1,740

2,760

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

a2.2

a2.2

a2.2

2.2

2.4

2.6

2.8

3.1

3.2

3.4

3.4

3.6

3.7

3.9

4.2

4.2

4.1

3.9

4.1

4.5

5.5

7

8

8.5

8.5

11

22

23

17

12

11

Nov.

10

10

17

16

13

12

11

10

9.5

:.5

9.5

9.5

9.5

9.5

9.5

11

14

19

15

13

12

12

12

12

12

12

12

12

17

36

-

Dec.

33

23

79

125

47

33

27

24

22

25

27

22

21

26

102

88

126

64

46

39

39

36

38

54

44

47

97

1,830

2.730

1,400

1,080

Jan.

572

334

240

192

163

142

130

142

138

123

117

113

107

101

95

89

86

81

76

72

69

72

108

146

995

427

606

688

376

299

263

Feb.

224

217

268

224

370

752

788

482

367

321

280

2a?

242

217

201

189

179

171

163

154

163

480

272

230

248

20fi

194

181

-

-

-

Month

October ............. ........ ...... . .

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

Decembe r . . . ..............................

Calendar year 1941 ................... .

January .......... ................. .... .

February ......... ............. ... . . .

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

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

Hay. ........... ........ ........ . ....

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

July ............... .... . ... . ...... . August ............. . ..... .... . .

September. .... ...... ...... . . .... .

Water year 1941-42 . . ... ..........

Mar.

170

165

158

151

142

HO

133

126

122

123

485

436

299

4f58

990

476

395

352

323

289

263

246

232

223

210

197

187

181

173

165

158

Apr.

152

151

158

331

280

248

212

187

179

189

206

189

171

612

37B

277

362

292

250

224

210

201

190

178

170

163

160

250

230

190

-

Secondfoot-days

199.4

386.5

8,394

81.186.1

7,162

8,040

8,178

6,988

4,315

1,331

321.8

33.8

41.5

45,391.0

May

305

272

214

192

179

165

152

145

139

134

150

174

146

133

145

173

136

123

112

104

97

91

87

86

87

134

103

90

87

82

78

Maximum

23

36

2,730

5,080

995

788

990

612

305

75

20

2.4

2.3

2,730

June

75

71

70

68

65

60

59

58

55

53

ai

48

47

44

43

41

39

37

37

34

33

32

30

28

27

27

27

26

24

22

-

Minimum

2.2

9.5

21

1.7

69

154

122

151

78

22

2.4

.4

.8

.4

July

20

18

17

16

16

15

14

13

12

12

12

12

12

12

11

11

11

10

10

10

9.5

9

8

6.5

5.5

4.2

3.7

3.3

3.1

2.5

2.4

Aug.

2.4

2.4

2.2

2.2

2.1

1.9

1.6

1.4

1.2

1.2

1.2

1.4

1.5

1.2

1.1

.8

.8

.6

.4

.4

.4

.4

.4

.4

.4

.4

.4

.4

.7

.9

1.0

Mean

6.43

12.9

271

222

231

287

264

233

139

44.4

10.4

1.09

1.38

124

Sept.

1.3

1.5

1.5

1.6

1.7

1.7

1.9

2.1

1.9

1.8

1.8

1.8

2.3

2.2

1.9

1.6

1.2

1.0

.8

.3

.3

.8

.8

.8

.8

1.0

1.0

1.0

1.1

1.0

-

Runoff in 

acre-feet

396

767

16,650

ifii.ooo

14,210

15,950

16,220

13,860

8,560

2,640

638

67

82

90,040

Peak discharge.- Dec. 29 (1 a.m.) 5,800 sec.-ft.; Jan. 25 (5:30 a.m.) 1,680 sec.-ft.; Jan. 27 

(10 p.m.) 1,390 sec.-ft.; Feb. 6 (8 p.m.) 1,330 sec.-ft.; Mar. 15 (2 a.m.) 2,140 sec.-ft.; Apr. 14 

(1 p.m.) 1,370 sec.-ft.

a No gage-height record; discharge computed on basis of records for Fresno River near Knowles 

and one discharge measurement.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
206 MERCED RIVER BASIN

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

Location.- Water-stage recorder, lat. 37°43'54", long. 119°33'28", at Kappy Isles Bridge, 

0.4 riile downstream from Illilouette Creek and It? miles southeast of Yosemite Lodge 

in Yosemite national Park, Mariposa County. Altitude of gage, about 4,000 feet (from 

topographic nap).

Drainage area.- 181 square miles.

Records available.- August 1915 to September 1942.

Average discharge.- 27 years, 336 second-feet.

Extremes.- Maximum discharge during year, 2,800 second-feet June 11 (gage height, 6.87 

feet); minimum, 9 second-feet Oct. 11.

1915-42: Maximum discharge, 10,600 second-feet Dec. 11, 1937 (gage height, 10.4 

feet), from rating curve extended above 4,000 second-feet on basis of velocity-area 

studies; minimum, 1.5 second-feet Sept. 30, 1926.

Remarks.- Records good except those below about 50 second-feet, which are fair. Srall 

diversion above station for water supply of Yosemite Valley.

f.ating table, water year 1941-42 (gage height, in feet, and discharge

in cond-feet)

129

230

360

510

690

900

1,140

1,480

1,890

2,490

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

d!4

12

12

12

13

14

14

13

12

12

10

10

10

10

10

10

10

9.5

10

12

15

16

16

22

24

20

23

26

22

21

20

Nov.

38

297

287

181

146

124

108

99

86

75

67

60

52

47

43

48

54

40

38

33

32

32

30

29

30

28

28

2-7

40

54

-

Dec.

43

140

1,340

423

318

254

206

178

164

150

127

115

106

106

118

125

108

120

115

113

104

97

96

81

97

94

97

96

104

125

129

Jan.

127

122

113

108

106

96

101

106

104

113

125

140

144

146

140

131

122

122

115

113

113

115

120

133

189

192

254

224

184

181

166

Feb.

155

148

146

146

150

150

150

135

135

135

125

122

115

116

125

111

104

102

101

99

96

97

97

96

104

91

91

86

-

-

-

Mar.

94

106

108

116

142

157

159

186

209

215

227

212

189

168

168

168

166

181

168

162

166

178

184

176

162

155

155

166

192

230

272

Apr.

275

350

438

490

370

322

318

374

442

474

482

600

700

680

542

542

510

454

568

745

820

888

85S

780

858

785

735

618

518

482

-

May

474

434

462

422

650

852

1,060

1,230

1,300

1,130

972

800

720

705

675

613

670

825

1,180

1,680

2,030

2,200

2,100

2,170

2,390

1,760

1,320

1,260

1,010

960

1,160

June

1,470

1,650

1,380

1,770

2,190

2,370

2,210

1,920

2,200

2,470

2,490

2,370

2,290

2,310

2,360

2,150

2,140

2,200

2,090

1,850

1,770

1,890

1,910

1,870

1,740

1,420

1,190

1,290

1,420

1,500

-

July

,580

,660

,690

,730

,780

,460

,310

,190

,070

,020

996

858

740

852

972

978

775

680

655

. 622

590

595

564

534

538

494

442

381

328

284

254

Aug.

230

212

195

189

200

218

212

203

197

284

275

442

325

260

224

206

189

166

152

133

122

108

104

101

99

96

86

77

68

60

52

Sept.

47

44

40

39

38

37

36

35

34

34

35

33

30

28

27

25

25

25

25

25

25

24

24

22

22

21

21

20

19

18

-

Month

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

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

September. . ... ............

Water year 1941-42 . . ..........

Secondfoot days

454.5

2,253

5,489

182,491~.5

17,012

5,485 

878

165,217.5

Maximum

26

297

1,340

2,880

888

442 

47

2,490

Minimum

9.5

27

43

9.5

96

94

275

52 

18

9.5

Mean

14.7

75.1

177

POO

138

567

891

177 

29.3

453

Runoff in 

acre-feet

901

4,470

10,890

368,000

10,590

33,740

10,880 

1,740

327,700

d Doubtful gage-height record; discharge interpolated. 

Time basis: Pacific standard time prior to 2 a.m., Fe 

.ime to standard time, subtract 1 hour.

b. 9, 1942: Pacific
MERCED RIVER BASIN 207 

Merced River at Pohono Bridge, near Yosenite, Calif.

Location.- Water-stage recorder, lat. 37°43'01", long. 119°39'55", 0.4 mile upstream from 

Artist Creek and 5 miles downstream from Yosemlte Lodge, In Yosemlte National Park, 

Mariposa County. Altitude of gage, about 3,870 feet (from topographic map).

Drainage area.- 321 square miles.

Records available.- November 1916 to September 1942.

Average discharge.- 25 years (1917-42), 585 second-feet.

Extremes.- Maximum discharge during year, 5, £,60 second-feet May 25 (gage height, 9.21 

feet); minimum, 29 second-feet Oct. 17-19.

1916-42: Maximum discharge, 22.000 second-feet Dec. 11, 1937 (gage height, 19.1 

feet from floodmarks In gage house), by computation of flow over diversion dan for 

Yosemlte powerhouse about 1 mile downstream; minimum, 3.3 second-feet Sept. 29, 

Oct. 1, 1924.

Remarks.- Records good. Small diversion above station for Yosenite Valley water supply.

Rating table, water yea 1941-42 (gage height, in feet, and discharge, 

in second-feet)

0.8

.9

1.1

1.3

1.5

1.8

2.1

26

32

50

73

101

153

218

2.4 291

2.8 403

3.2 538

3.6 705

4.0 910

4.5 1,200

5.0 1,520

5.5 1,870

6.0 2,240

6.5 2,640

7.0 3,100

7.5 3,620

8.0 4,200

8.6 4,960

Discharge, in second-feet, water year October 1941 to September 1949

Day

1

2

3

4

5

6

7

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.

35

34

33

33

34

35

35

34

33

32

32

31

31

31

31

30

29

29

30

32

34

36

35

44

49

45

52

53

48

45

43

Nov.

54

544

513

315

247

204

177

159

140

126

115

104

97

88

83

90

112

90

83

76

72

72

66

65

63

62

62

60

72

122

Dec.

104

236

3,110

954

696

527

419

362

321

296

254

232

216

223

256

296

235

259

247

247

218

211

218

169

188

197

191

188

186

237

266

Jan.

254

223

235

223

211

213

225

242

237

252

278

296

302

307

294

274

249

249

237

232

232

254

249

284

413

445

611

549

425

416

370

Feb.

351

345

345

351

365

370

367

326

321

315

296

284

266

259

235

249

244

244

244

237

240

240

223

225

216

225

218

209

_

_

-

Mar.

223

249

252

268

323

356

356

409

448

457

492

474

422

367

356

367

367

400

370

356

367

388

409

394

351

340

348

373

425

498

603

Apr.

587

745

938

1,150

845

710

687

810

938

1,020

1,030

1,240

1,490

1,490

1,150

1,140

1,090

960

1,160

1,490

1,660

1,860

1,770

1,630

1,820

1,630

1,560

1,290

1,070

1,030

-

May

1,020

938

°98

1,110

1,320

1,720

2,100

2,500

2,660

2,310

1,960

1,620

1,490

1,460

1,450

1,330

1,460

1,790

2,430

3,420

4,150

4,580

4,340

4,360

4,950

3,920

2,810

2,700

2,210

2,040

2,420

June

2,980

3,300

2,860

3,490

4,300

4,660

4,310

3,710

4,130

4,510

4,490

4,300

4,120

4,120

4,150

3,720

3,580

3,640

3,430

3,070

2,860

2,960

2,990

2,890

2,680

2,300

1,930

1,990

2,120

2,190

-

July

2,270

2,350

2,330

2,330

2,380

2,000

1,810

1,660

1,470

1,380

1,320

1,160

1,000

1,060

1,190

1,200

992

872

830

780

735

725

687

669

642

595

538

474

419

370

332

Aug.

304

281

261

252

254

271

264

254

247

307

318

429

373

302

268

252

237

211

193

175

159

146

137

133

130

128

119

109

101

93

84

Sept.

77

72

68

67

66

63

62

60

60

60

60

59

56

52

48

46

44

43

43

43

43

42

41

39

38

38

37

36

36

35

-

Month

Water year 1941-42 ......................

Secondfoot-days

4 133

302,151

Maximum

544

2 380

429

4,950

Minimum

29

587

332

29

Mean

379

883

219

828

Runoff in 

acre- feet

639,500

72 540

599,300

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

Tc convert war time to standard time, subtract 1 hour.
208 MERCED RIVER BASIN

Merced River at Kittridge, Calif.

Location.- Water-stage recorder, lat. 37°39', lone. 120°11', In sec. 26, T. 3 S., R. 16 

E., 0.2 mile downstream from Wliites Gulch, a quarter of a mile downstream from 

Klttrldge, and 3i miles downstream from Ba£by. Altitude of ga^e, about 750 feet (from 

topographic nap).

Drainage area.- 935 square nlles.

Records available.- November 19^8 to September 1942. November 1922 to November 1928 at 

site ! * miles downstream.

Average discharge.- 16 years (1923-27, 1929-30, 1931-42), 1,257 second-feet.

Extremes.- Maximum discharge during year,'11,000 second-feet May 26 (gage height, 12.40 

feet); minimum, 64 second-feet Oct. 3.

1922-42: Maximum discharge, 59,000 second-feet Dec. 11, 1937 (eage height, 31.0 

feet, from floodmarks), from rating curve extended above 11,000 second-feet on basis 

of velocity-area studies and of records of storage increase in Lake McClure; minimum, 

13 second-feet Oct. 5, 1925.

 Remarks.- Records good. No large diversions above station.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet) 

Oct. 1 to May 25 Kay 26 to Sept. 30

0.8 

1.0

69

92

164

266

390

544

730

950

4.5

5.0

6.0

7.0

8.0

9.0

10.0

11.0

1,205

1,500

2,210

3,130

4,220

5,470

6,900

8,510

0.8 

1.0 

1.3 

1.6 

2.0

90

111

152

204

290

2.5 

3.0 

3.5 

4.0 

4.5

426

585

780

1,010

1,280

5.5 

6.5

7.E

1,920

2,700

3,660

eding table above 7.5

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

76

71

70

72

72

78

81

80

79

76

77

80

80

80

77

76

73

73

80

95

105

104

102

119

125

137

173

151

128

119

Nov.

118

408

905

602

439

368

314

8P1

259

233

214

202

186

178

166

1C2

206

S33

194

177

168

152

161

151

148

148

145

145

354

266

-

Dec.

279

240

5,280

2,180

1,280

975

766

654

587

548

491

454

421

442

B60

859

950

646

602

552

566

500

520

500

445

504

945

a, 230

4.150

2,850

1,790

Jan.

1,200

900

792

722

558

624

631

P69

874

815

833

878

878

850

824

762

707

662

631

612

594-

673

815

P32

3,950

2.550

.1,990

3,950

2,320

1,830

1,510

Feb.

1,320

1,280

1,570

1,430

1,930

,1,070

4,070

2,710

1,960

1,640

1,400

1,270

1,140

1,060

960

932

B82

S41

B15

792

824

1,110

900

069

824

810

7Q2

766

-

-

-

Mar.

746

770

802

806

856

P36

960

1,010

1,080

1,120

1,810

1,900

1,750

1,910

2,500

2,080

1,910

1,840

1,700

1,490

1,390

1,360

1,350

1,310

1,200

,120

.080

,080

,150

,250

,420

Apr.

1,420

1,570

1,860

3,550

3,090

2,430

2,100

2,100

2,240

2,500

2,540

2,700

5.13C

5,300

3,800

3,230

3,330

2,900

2,970

3,340

3,550

3,920

3,780

3,420

3,720

3,410

5,280

3,130

2,590

2,430

-

May

2,770

2,600

2,530

2,610

2,850

3,?50

.',,980

4,650

P.090

4,530

3,970

3,360

,%020

2,910

2,990

2,890

2,800

3,230

4,160

5,850

7,250

8,080

7,780

7,420

8,340

8,360

5,240

5,130

4,100

3.660

4,030

June

5,080

5,800

5,040

5,740

7,110

7,890

7,440

6,090

6,680

7,460

7,440

7,140

6,780

6,680

6,810

6,200

5,710

5,850

5,550

5,030

4,620

4,720

4,760

4,560

4,200

3,700

3,060

3,030

3,220

3,220

-

July

3,300

3,340

3,300

3,200

3,290

2,850

2,530

2,320

2,070

1,930

1,820

1,670

1,450

1,420

1,570

1,600

1,440

1,260

1,160

1,110

1,040

1,000

975

946

892

856

798

780

644

582

531

Aug.

486

456

423

399

379

390

396

379

371

368

453

447

562

462

408

365

346

327

2f>7

276

257

240

224

212

206

202

200

191

182

175

155

Sept.

155

148

142

138

137

134

131

127

124

130

140

148

134

126

122

116

110

108

107

107

106

104

103

100

100

99

99

97

98

99

-

Month

Calendar year 1941 ......................

Water year 1941-42 ......................

Secondfoot-days

701,628

625,443

Maximum

9,830

8,360

Minimum

70

70

Mean

93.2

1,922

1,714

Runoff in 

acre feet

1,392,000

7V,2VO

1,241,000
MERCED RIVER BASIN 

Lake McClure at Exchequer, Calif.

209

Location.- Indicator in powerhouse, lat. 37°35', long. i20°16', in SWi sec. 13, T. 4 S., 

R. 15 E., at Exchequer Dam on Merced River, 5 miles northeast of Merced Falls. Datum 

of gage is mean sea level (levels by Merced Irrigation District).

Drainage area.- 1,020 square miles.

Records available.- April 1926 to September 1942.

Extremes.- Maximum contents during year, 286,200 acre-feet July 1-5 (elevation, 708.8 

feet); minimum, 114,500 acre-feet Oct. 17 (elevation, 625.2 feet).

1926-42: Maximum contents, 289,400 acre-feet June 4, 1938 (elevation, 710.0 feet); 

practically no storage Aug. 28 to Nov. 22, 1926, Sept. 21 to Nov. 16, 1930^Sept. 2 

to Nov. 15, 1931, Sept. 15 to Oct. 31, 1934. ^

Remarks.- Reservoir is formed by concrete gravity-type dan completed in 1926; storage 

began In April 1926. Usable rapacity, 280,900 acre-feet between elevations 442.6 

feet (bottom of sluice valve) and 707.0 feet (top of spillway gates) above mean sea 

level. Water passes through power plant at dam and down Merced River to diversion 

dan of Merced Irrigation District's main canal. Records show total contents at midnight; dead storage, 400 acre-feet or less.

Cooperation.- Gage-height record furnished by Merced Irrigation District, In connection 

with a Federal Power Commission Project.

Contents, In acre-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

156,100

134,500

133,100

131,500

129,900

128,300

126, 7CO

125,200

123,600

122,000

120,500

118,800

117,400

115,800

114,600

114,600

114,500

114,600

114,600

114,600

114,800

115,100

115,200

115,400

115,600

1 If ,700

116,000

US, 300

116,600

116,900

117,000

Nov.

117,200

ll^.lOO

119,900

121,100

122,000

122,800

123,500

125,900

124,400

124,900

125,400

125,700

126,000

126,300

126,500

126,800

127,100

127,600

127,900

128,100

128,400

128,600

128,700

129,100

12Q ,200

129,500

12", 700

129,900

130,300

130, 80"

-

Dec.

131,500

131,900

142,000

146,500

149,200

151,100

152,500

153,900

155,000

155,100

157,000

157,900

153,800

159,700

161,500

161,300

165,100

166,500

167,600

16S.800

169,900

170,800

172,000

172,900

173,900

174, POO

] 77, 100

183,900

193,500

200,200

204,000

Jan.

206,800

208,800

210,600

211,900

211,000

209,900

208,800

208,200

207,500

206,600

206,000

205,300

204,600

204,000

203,200

202,300

201,500

201,500

199,400

198,100

196,800

195,800

195,200

194,800

200,800

204,000

211,200

217,700

220,300

221,600

222,600

Feb.

222,800

223,000

223,900

225,300

227,200

231,800

239,100

242,500

244,200

245,100

245,800

246,100

246,100

245,800

245,600

245,100

244,600

243,900

243,200

242,500

241,800

242,000

241,500

241,000

240,300

239,600

23R.900

237,900

_

-

Mar.

237,000

236,200

235,500

234,800

234,100

233,600

233,100

232,700

2.^2,400

232,400

234,300

236,200

237,900

241,500

243,200

242,700

242,200

242,000

242,000

241,500

242,000

242,000

241,800

241,500

241,000

240,600

239,600

238,900

238,200

23P,200

237,700

Apr.

237,700

237,700

238,600

243,200

244,400

242,000

242,000

242,500

242,700

242,500

241,800

241,800

242,200

244,400

242,700

239,800

237,000

234,300

£32,400

232,000

234,600

237,000

236,700

235,500

235,000

234,100

232,700

231,100

229,700

229,500

-

May

230,400

230,800

231,100

231,500

232,000

232,700

233,600

234,300

234,800

234,300

232,700

230,800

229,700

229,200

229,200

229,000

228,800

229,000

230,400

232,000

234,300

238,400

241,800

244,600

249,000

253,800

252,800

251,500

248,000

243,900

240,300

June

238,900

239,100

237,400

237,400

239,800

243,400

246,600

250,200

258,800

268,700

275,000

288,300

279,100

280,500

282,100

282,600

282,600

283,700

284,000

283,700

283,200

283,700

284,500

284,500

284,000

283,700

283,700

284,800

285,600

285,900

-

July

286,200

286,200

286,200

286,200

286,200

285,600

285,600

285,400

284,800

284,500

284,000

283,700

282,900

281,800

281,300

280,200

279,100

278,100

276,800

275,200

273,700

272,400

270,500

269,000

267,400

265,600

263,800

262,000

260,000

257,800

255,200

Aug.

252,800

250,200

247,500

244,900

242,200

239,600

237,000

234,300

232,000

229,500

227,200

225,100

223,200

221,200

218,900

216,600

214,100

211,700

209,500

207,100

204,600

202,100

199,800

197,500

195,200

192,900

190,800

18^,500

186,500

184,300

182,100

Sept.

179,900

177,700

175,700

173,700

171,600

169,700

167,600

165,700

163,600

161,800

160,000

158,100

1E6,300

154,300

152,300

150,200

148,300

146,500

144,600

142,900

141,200

139,500

137,800

136,100

134,500

132,900

131,100

129,500

127,900

126,200

Monthly elevation and contents, water year October 1941 to September 1942

Dec.

Ca

Sent

\ &

Date

31.....................

.30.......... ...........

ter year 1941-42. .......

Elevation 

(feet)

674.9

_

632.8

-

Contents 

(ac?e-feet )

204,000

_

126,200

-

Change In contents 

during month 

(acre-feet)

+73,200

+97,700

-55,900

-11,600

"aclflc standard time Drier to 2 a.m., Feb. 9, 1942; Pacific 

after. To convert war time to standard time, subtract 1 hour.
210 MERCED RIVER BASIN 

Merced River at Exchequer, Calif.

Location.- Long distance water-stage transmitter, lat. 37°35', long. 180u i7', about on 

line between sees. 14- and 83, T. 4 S., R. 15 E., at Exchequer, half a mile downstream 

from Lake McClure, 0.7 mile downstream from Cotton Creek, and 5 miles northeast of 

Merced Falls; recording receiver at power plant half a mile upstream. Altitude of gage, 

about 400 feet (from topographic nap).

Drainage area.- 1,035 square miles.

Records available.- October 1988 to September 1948. November 1915 to October 1928 at site 

1 mile upstream.

Average discharge.- 86 years (1916-48), 1,835 second-feet; affected by storage In Lake 

McClure since Apr. 80, 1926.

Extremes.- Maximum discharge during year, 5,400 second-feet (regulated) May 26 (gage 

height, 8^4 feet); minimum, 7 second-feet (regulated) Jan. 8 and 3.

1915-4W Maximum discharge observed, about 82,000 second-feet (unregulated) Jan. 17, 

1916 (gage height, 80.0 feet, site and datum then In use), from rating curve extended 

above 9,000 second-feet; minimum discharge, 5 second-feet (regulated) Jan. 5, 1935.

Remarks.- Records good except those below 100 second-feet, which are fair. No large 

diversions above station. Flow regulated by Lake McClure. (See p.209 .)

Cooperation.- Assistance In collecting gage-height record furnished by Merced Irrigation 

District.

Rating table,

-0.5

-.1

.1

.5

.5

ater year 1941-42 (gage height, In feet, and discharge, 

In second-feet)

0.8 

1.1 

1.5 

2.0 

2.5

146

218

334

510

740

3.0 

3.5 

4.0 

4.5 

5.0

1,015

1,320

1,650

2,030

2,430

5.5

6.0 

6.7 

7.5 

8.7

2,850

3,320

4,070

5,020

6,620

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

T22

23

24

25

26

27

28

29

30

31

Oct.

927

894

883

883

878

872

866

866

866

866

866

866

866

866

670

122

83

68

38

38

31

36

37

37

37

37

38

38

38

38

38

Nov.

38

38

38

38

38

38

38

38

38

39

33

32

39

62

62

62

53

51

66

73

73

73

71

52

47

47

47

47

37

33

-

Dec.

33

33

35

35

35

35

35

35

35

35

35

35

35

33

28

28

27

27

26

25

24

24

24

24

24

24

24

24

24

25

26

Jan.

28

16

8

45

1,230

1,230

1,230

1,210

1,230

1,230

1,220

1,220

1,220

1,220

1,220

1,220

1,220

1,230

1,200

1,210

1,200

1,210

1,220

1,200

1,210

1,220

1,230

1,250

1,230

1,240

1,230

Feb.

1,240

1,230

1,240

1,230

1,240

1,240

1,220

1,210

1,210

1,200

1,190

1,220

1,190

1,210

1,210

1,200

1,220

1,190

1,200

1,200

1,210

1,200

1,220

1,200

1,200

1,210

1,200

1,190

-

_

-

Mar.

1,210

1,220

1,200

1,220

1,220

1,220

1,200

1,220

1,230

1,230

1,230

1,210

1,230

646

2,190

2,510

2,370

2,000

1,890

1,720

1,200

1,500

1,510

1,510

1,510

1,520

1,520

1,520

1,520

1,520

1,520

Apr.

1,520

1,580

1,530

1,580

2,830

3,720

2,060

2,050

2,290

2,740

2,950

2,610

3,100

4,520

4,970

4,980

5,000

4,320

4,000

3,620

2,290

2,850

4,000

4,020

4,000

4,000

4,000

4,020

3,350

2,500

-

Hay

2,500

2,500

2,500

2,500

2,660

2,980

3,590

4,410

5,000

5,000

5,000

4,380

3,610

3,140

3,010

3,010

3,010

3,010

3,630

5,120

6,020

6,030

6,030

6,030

6,030

6,050

5,990

6,000

6,000

6,000

6,030

June

6,020

6,030

6,030

6,020

6,020

6,030

6,030

4,360

2,500

2,500

4,070

6,030

6,030

6,020

6,050

6,160

5,780

5,440

5,410

5,350

4,980

4,310

4,420

4,560

4,440

3,830

2,830

2,540

2,830

3,050

-

July

3,160

3,240

3,250

3,220

3,210

3,000

2,550

2,410

2,250

2,100

1,960

1,810

1,770

1,800

1,880

1,810

1,790

1,790

1,790

1,790

1,760

1,760

1,730

1,730

1,710

1,660

1,640

1,590

1,590

1,640

1,680

Aug.

1,710

1,720

1,720

1,720

1,680

1,660

1,640

1,620

1,620

1,590

1,560

1,510

1,500

1,500

1,500

1,500

1,490

1,490

1,470

1,440

1,440

1,440

1,420

1,400

1,350

1,310

1,270

1,270

1,240

1,240

1,240

Sept.

i;240

1,220

1,180

1,170

1,150

1,150

1,110

1,110

1,110

1,110

1,110

1,110

1,110

1,110

1,110

1,110

1,080

1,080

1,010

976

954

938

927

922

916

916

910

922

905

944

-

Month "T

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

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

Water year 1941-42 ......................

Secondfoot-days

1 441

912

650,755

Maximum

35

6,160

Minimum

24

8

Mean

29.4

3 229

1 492

1,783

Runoff in 

acre feet

1,810

192 200

128 900

1,291,000

Pacific standard time orlor to 2 a.m., Feb. 9, 1942; 

time to standard time, subtract 1 hour.

aelfle war time thereafter.
MERCED RIVER BASIN 211

Merced River near Livlngston, Calif.

Location.- Water-stage recorder, lat. 37°23'29", long. 120 047'10", In SEi sec. 20, T. 6 

S., R. 11 E., 3i miles west of Livlngston and about 10 miles upstream from mouth. 

Altitude of gage, about 82 feet (from topographic map).

Drainage area.- 1,245 square miles.

Records available.- March 1922 to September 1924, October 1925 to September 1942.

Average discharge.- 17 years (1925-42), 758 second-feet.

Extremes.- Maximum discharge during year, 5,200 second-feet Apr. 18 (gage height, 15,35 

feet); minimum, 129 second-feet Nov. 14.

1922-24, 1925-42: Maximum discharge, 11,100 second-feet Feb. 12, 1938 (gage height, 

21.44 feet, present datum), from rating curve extended above 8,500 second-feet; 

minimum observed, 18 second-feet Aug. 30, 1924.

Remarks.- Records fair. Practically entire flow is diverted above station during irrigation season; some return flow also enters above. Flow regulated by Lake McClure 

[p- 209)-

Cooperation.- Water-stage recorder graph furnished by Merced Irrigation District.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

190

200

220

210

200

200

199

208

191

189

185

190

210

210

215

220

224

212

197

' 190

180

170

160

155

155

155

155

150

150

150

150

Nov.

150

150

150

150

145

145

140

141

141

138

136

134

133

133

133

134

136

138

138

140

143

150

154

150

150

154

156

156

161

161

Dec.

0.59

159

161

167

161

159

158

158

150

156

170

168

165

167

176

178

172

170

167

165

163

161

159

158

156

158

163

174

210

224

347

Jan.

439

398

316

268

234

666

1,270

1,350

1,370

1,380

1,370

1,380

1,380

1,380

1,390

1,380

1.370

1,370

1,380

1,380

1,380

1,380

1,380

1,400

1,520

1,660

1,520

1,910

1,700

1,550

1,510

Feb.

1,400

1,400

1,350

1,400

1,400

1,500

1,700

1,750

1,550

1,450

1,400

1,350

1,350

1,350

1,350

1,350

1,350

1,350

1,350

1,350

1,350

1,400

1,450

1,450

1,400

1,400

1,400

1,400

_

_

-

Mar.

1,390

1,400

1,400

1,400

1,390

1,390

1,390

1,390

1,390

1,3SO

1,430

1,530

1,480

1,520

1,330

2,440

2,680

2,510

2,190

2,070

1,830

1,570

1,700

1,680

1,690

1,690

1,480

1,220

1,220

1,120

1,040

Apr.

1,040

1,060

1,100

1,270

1,480

2,870

3,660

2,330

2,180

2,370

2,790

2,790

2,370

2,840

4,190

4,630

4,920

5,160

4,470

4,090

3,410

2,450

2,940

3,670

3,630

3,610

3,630

3,680

3,740

3,040

-

May

2,440

2,370

2,340

2,280

2,200

2,370

2,560

2,940

3,620

4,150

4,200

4,230

3,680

2,990

2,610

2,520

2,480

2,420

2,360

2,830

3,960

4,740

4,800

4,790

4,830

4,910

4,950

4,960

4,380

4,960

4,960

June

4,980

4,930

4,910

4,890

4,810

4,760

4,760

4,800

3,140

1,800

1,640

3,080

4,410

4,580

4,620

4,660

4,720

4,370

4,030

3,970

3,890

3,560

3,000

3,080

3,160

3,050

2,500

1,700

1,480

» 1,650

-

July

1,780

1,850

1,890

1,930

1,870

1,8SO

1,620

1,210

1,010

863

715

613

518

392

336

295

290

295

288

263

263

269

267

245

210

19S

188

161

168

182

196

Aug.

218

196

182

200

192

206

188

186

206

226

226

214

210

210

232

250

232

210

184

196

208

180

182

180

186

192

174

184

190

202

196

Sept.

174

188

178

180

194

241

218

200

192

226

218

206

200

178

172

162

174

ISO

172

168

192

172

178

200

200

192

198

184

182

204

-

Month

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

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

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

Water year 1941-42 . . .................

Secondfoot-days

5,359

547,581

39,700

110,930

22,255

489,896

Maximum

224

161

347

6,200

1,910

1,750

4,980

1,930

250

241

5,160

Minimum

150

133

150

133

234

1,350

1,040

1,480

161

174

162

133

Mean

187

145

17B

1,500

1,238

1,418

1,592

3,047

3,562

3,698

718

201

191

1,342

Runoff in 

acre-iaet

11,480

8,610

10,630

1,086,000

76,130

78,740

97,860

181,300

219,000

220,000

44,140

12,370

11,350

971,600

Note.- No gage-height record Oct. 1-6, 11-16, Oct. 20 to Nov. 7 and Feb. 1-28; discharge computed 

on basis of unpublished records above and below the station.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
212 MERCED RIVER BASIN 

Tenaya Creek near Yosemlte, Calif.

Location.- Water-stage recorder, lat. 37°44'33't , long. 119°33'25", In Yosemlte National 

Park, at bridge 0.7 mile upstream from mouth and 1.9 miles east of Yosemlte Lodge, 

Mariposa County. Altitude of gage, about 4,000 feet (from topographic map).

Drainage area.- 47 square miles.

Records available.- July 1904 to June 1909, January 1912 to September 1942.

Average discharge.- 29 years (1913-42), 104 second-feet.

Extremes.- Maximum discharge during year, 1,030 second-feet June 5 (gage height, 5.00 

feet); minimum, 1.3 second-feet Oct. 1.

1904-09, 1912-42: Maximum discharge, 5,550 second-feet Dec. 11, 1937 (gage height, 

10.0 feet), from rating curve extended above 2,000 second-feet on basis of velocityarea studies; minimum, 0.6 second-foot Dec. 18-22, 1989, and Dec. 2, 6-15, 1940.

Remarks.- Records good October to January, May to July; fair February to April, August 

and September. Ho diversions.

Discharge, in second-feet, water .year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1.3

1.6

1.7

1.8

2.0

2.6

2.9

3.5

3.5

3.6

3.5

2.6

2.9

2.9

2.9

2.9

2.9

2.9

3.1

3.3

3.5

3.3

3.1

3.6

3.5

3.5

3.6

3.5

3.5

3.5

3.3

Nov.

26

179

92

55

41

34

29

26

23

21

19

18

16

16

14

18

25

22

21

20

18

16

41

13

13

12

12

12

16

25

-

Dec.

25

130

484

187

142

111

89

76

66

59

51

44

40

41

52

57

55

51

46

48

43

42

41

37

38

40

40

39

30

49

58

Jan.

58

54

53

52

48

44

45

52

53

57

63

66

67

66

63

59

54

52

49

47

47

46

49

57

82

95

129

120

96

86

78

Feb.

71

68

67

68

73

73

78

73

68

66

62

58

55

49

47

46

44

44

43

42

42

40

42

41

41

40

40

39

.

_

-

Mar.

40

45

46

49

58

64

64

75

82

83

89

89

82

73

69

72

72

78

71

67

69

73

78

73

67

63

64

71

82

96

113

Apr.

110

140

165

175

142

122

118

140

163

167

167

209

238

238

192

190

181

165

192

233

259

285

264

250

274

240

233

203

177

165

-

May

167

153

165

181

211

264

324

400

453

376

329

284

262

260

260

237

262

321

426

570

678

722

685

703

738

580

462

438

350

345

426

June

522

548

516

627

730

770

696

642

703

711

700

663

649

649

642

589

576

570

538

486

465

468

465

444

407

355

316

316

319

324

-

July

329

329

319

314

293

260

235

210

184

168

152

137

123

116

114

106

98

88

81

74

65

59

58

68

52

45

40

37

32

29

25

Aug.

23

21

18

16

14

13

12

10

9.5

9

8.5

8

10

8.5

7

6

5.5

4.6

4.3

3.8

3.4

2.8

2.6

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.1

Sept.

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.1

2.4

2.

2.

2.

2.

2.

2.1

2.1

2.1

2.1

1.8

1.8

1.8

1.8

1.8

1.8

1.7

1.7

1.7

1.7

1.7

-

Month

Unv

Water year 1941-42 ......................

Secondfoot-days

2 217

5 797

47,770.1

Maximum

129

329

o*

770

Minimum

39

1.3

Mean

28 9

437

131

Runoff in 

acre-feet

91 > 390

475

94,760

Tine basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tin 

To convert war time to standard time, subtract 1 hour.

thereafter.
ORES TIME A CFSEK BASIN 2:

Orestlmba Creek near Newman, Calif.

Location.- Water-stage recorder, lat. 37°19'C9", long. 121°07'14", In NWi sec. 20, T. 7

 S., R. 8 E., at highway bridge, 3 miles downstream from Oso Creek and 5 miles west of 

Newman. Datum of gage Is 191.86 feet above mean sea level (unadjusted).

Drainage area.- 129 square miles.

Records available.- January 1932 to September 1942.

Average ctlscharfeT- 10 years, 23.2 second-feet.

Extremes.- Maximum discharge during year, 1,880 second-feet Jan. 24 (gage height, 4.05 

feet); no flow for several months.

1932-42: Maximum discharge, 3,440 second-feet Feb. 8, 1932 (gage height, 5.15 

feet), from rating curve extended above 500 second-feet on basis ofslope-area computations; no flow for several months In each year.

Remarks.- Records fair. Wo large diversions.

Rating tables, water year 1941-42 (gage height. In fe

In second-feet) 

(Sh-ifting-control method used May 4 to Jun

0.0

1.0

3.0

5.5

10

15.5

Oct. 1 to Ja

1.2

1.3

1.4

1.5

1.6 

1.8

34

50

2.0 

2.2 

2.4 

2.6 

2.9

210

295

395

510

720 5.5 

9.0

it, and discharge,

i 28)

, 25 to June 28

1.0

1.1

1.2

1.3

1.4

1.5

13.5

19.5

1.6 

1.8 

2.0 

2.2 

2.4

155

230

316

410

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct. Nov. Dec.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

12

30

18

11

8

6.5

5.5

5

5.5

6,5

10

53

285

587

178

105

Jan.

68

42

28

22

17

15

13

13

12

11

9.5

9

8

8

8

8

7

6

6

6

5.5

6

11

406

677

251

226

186

116

82

64

Feb.

48

58

66

58

174

391

307

183

124

89

66

54

48

38

34

32

29

27

26

24

24

28

24

22

21

20

19

19

-

-

~

Month

October. ............................ ......

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

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

Calendar year 1941 ......................

January ........ ...........................

February. ................................ .

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

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

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

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

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

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

September. ............................. ...

Water year 1941-42 ... . . ...... ....

Mar.

18

18

18

17

16

15

15

a!4

a!4

a!5

a25

a40

a40

a80

a300

a200

alOO

a50

a40

a35

a30

a30

a25

a25

23

22

22

20

19

19

19

Apr.

18

18

18

26

66

46

30

26

23

25

22

21

£°

48

52

40

37

36

33

31

30

29

26

24

22

22

22

22

22

22

~~

Secondfoot-days

0

0

1,326.0

30,197.0

2,347.0

2,053

1,324

877

305.0

25.5

0

0

0

8,257.5

May

22

22

20

17

15

14

13

12

12

12

12

12

12

11

10

9.5

9

8

6.5

5

5

5

5

5

4.7

4.7

4.7

4.7

4.4

3.9

3.9

Maximum

0

0

587

1,280

677

391

300

66

22

3.3

0

0

0

677

June

3.3

2.8

2.6

2.3

1.9

1.4

1.2

.9

a. 9

a. 8

a. 8

a. 7

a. 7

a. 6

a. 6

a. 5

.5

.5

.4

.4

.4

.3

.2

.2

.1

.1

.1

.1

.1

.1

~

Minimum

0

0

0

0

5.5

19

14

18

3.9

.1

0

0

0

0

July Aug.

Mean

0

0

42.8

82.7

75.7

73.3

42.7

29.2

9.84

.85

0

0

0

22.6

Sept.

Runoff in 

acre-feet

0

0

2,630

59,890

4,660

4,070

2,630

1,740

605

51

0

0

0

16,390

Peak discharge.- Dec. 29 (3:30 p.m.) 1,250 sec.-ft.; Jan. 24 (10 p 

(1 p.m.) 617 sec.-ft.

a No gage-height record; discharge computed on basis of records for 

and weather records.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Paclfl 

To convert war time to standard time, subtract 1 hour.

) 1,880 sec.-ft.; Feb. 6

by streams, range of stage 

r time thereafter.
214 TUOLUMNE RIVER BASIN

Hetch Hetchy Reservoir at Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°57', long. 119"47', In sec. 16, T. 1 N., R. 20 

E., at O'Shaughnessy Dam on Tuolumne River at Hetch Hetchy In Yosemlte National Park, 

li miles downstream from Falls Creek. Datum of gage Is at mean sea level (levels by 

city of San Francisco).

Drainage area.- 460 square miles.

Records available.- May 1923 to September 1942 (1923-30, gage heights only).

Extremes.- Maximum contents during year, 350,600 acre-feet June 6, 10, 11 (elevation, 

3,801.0 feet); minimum, 195,400 acre-feet Mar. 29, 30 (elevation, 3,713.3 feet).

1923-42: Maximum contents, 352,500 acre-feet June 4, 1938 (elevation, 3,802.0 

feet); no contents Jan. 5 to liar. 9, 1929, Jan. 5-18, Jan. 21 to Feb. 13, 1930, Jan. 22 

to Mar. 18, 1931.

Remarks.- Reservoir Is formed by concrete gravity-type da*i, completed to crest elevation 

3,726.5 feet In 1923 and raised to 3,£12.0 feet In 1937; storage began Apr. 6, 1923. 

Total usable capacity, 340,400 acre-feet between elevations, 3,512.0 feet (somewhat 

above bottom outlet) and 3,795.8 feet (spillway crest elevation) above nean sea level. 

Water flows down Tuolumne River 15 miles to Early Intake, where part Is diverted 

through Ketch 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 

'[etch Hetchy water-supply system for San Francisco. Records show contents at midnight, 

all of which Is available for release.

Day

1

2

3

4

5

6

7

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.

275,100

273,500

272,100

270,700

269,400

268,000

206,600

265,400

264,000

262,600

261,200

259,900

258,400

25'7 ,100

255,700

254,600

.,53,100

251,800

250,400

249,200

247,800

246,400

245,000

243,800

242,500

241,300

240,100

238,900

237,700

236,400

Nov.

234,500

236,200

236,700

236,900

236,500

236,000

235,400

234,700

233,800

2~2,800

232, "00

2.' 0,800

229,600

eiLR,800

j 7,70C

2£6,700

2L5.700

224,500

223,400

222,200

220,900

219,600

218,400

217,500

216,100

214,700

213,700

212,300

211,000

210,000

-

Dec.

209,000

211,100

224,700

227,000

228,200

228,700

226,700

228,700

228,300

2fG,000

227,500

226,800

226,200

226,600

225,300

225,500

225,200

224,800

224,300

224,000

223,500

223,000

222,500

221,900

221,200

220,600

220,200

220,100

219,900

219,700

;19,4CC

Jan.

219,100

218,300

217,800

217,000

216,100

215,700

215,200

215,200

215,000

214,800

214,800

214,800

214,800

214,800

214,800

214,700

214,200

213,900

213,700

213,200

212,400

211,800

211,300

211,100

211,900

212,900

215,800

216,600

216,800

 ,-16,800

216,500

Feb.

215,700

215,500

215,200

215,300

215,300

215,300

215,700

215,500

215,200

214,500

214,000

213,700

213,100

212,400

211,600

211,000

210,200

209, SCO

208,900

208,100

207,400

206,800

206,000

205,400

204,700

203,900

203,200

202,400

-

-

-

Mar.

201,700

201,300

200,600

200,000

199,800

199,700

199,200

199,200

199,200

199,200

199,700

199,800

200,000

200,000

199,700

199,400

199,200

198,900

198,700

198,300

197,900

197,800

197,500

197,200

196,700

196,400

195,900

195,600

195,400

195,400

195,700

Apr.

196,200

196,800

198,400

200,300

201,100

201,700

202,000

202,800

203,800

205,200

206,300

208,200

210,800

213,700

215,500

217,000

216,600

219,400

220,700

222,900

225,800

229,000

231,700

233,800

2^6,500

238,600

240,600

242,300

243,300

244,400

-

Hay

245,700

246,600

247,400

248,800

250,500

253,500

257,700

262,900

268,400

272,500

275,500

277,800

279,600

281,600

283,800

285,600

267,400

290,400

295,300

303,300

313,400

324,500

336,000

346,300

350,200

348,200

346,800

346,300

345,700

345,500

346,300

June

347,600

348,000

347,600

348,800

350,400

350,600

350,000

349,400

350,400

350,600

350,600

350,400

350,200

350,400

350,400

349,800

349,800

349,800

349,600

348,600

348,600

349,000

349,200

349,000

348,600

347,400

346,800

347,200

347,600

348,200

-

July

348,600

348,600

348,600

349,000

348,800

348,000

347,600

347,000

346,600

346,300

346,300

345,700

345,500

345,700

346,100

346,100

345,500

345,100

344,700

344,700

344,300

344,300

344,100

343,900

343,900

343,700

343,000

342,200

341,600

341,200

340,800

Aug.

340,400

339,900

339,300

338,700

338,100

337,400

336,600

336,000

335,400

334,700

334,300

333,900

333,300

332,700

332,200

331,400

330,600

329,700

328,700

327,800

326,600

325,700

324,500

323,400

322,200

320,900

319,800

318,500

317,300

316,000

314,700

Sept.

313,400

312,200

310,800

309,400

308,100

306,800

305,500

304,200

302,700

301,200

300,000

298,700

297,200

295,900

294,600

293,300

292,000

290,600

289,100

287,600

286,400

284,900

283,600

282,200

280,900

279,100

277,800

276,400

275,000

273,700

-

Monthly elevation and contents, water year October 1941 to September 1942

Date

Dec. 31.....................

Calendar year 1941........

Sept. 30... ..................

Water vear 1941-42........

Elevation 

(feet)

3 722 5

3,7':8.3

_

3 798 2

3,760.0

Contents 

(acre-feet)

219,400

.

273,700

Change In contents 

during month 

(acre-feet)

25 200

+9,400

+71,500

-41,000

-2.900

Time 'basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

war time thereafter. To convert war time to standard time, subtract 1 hour.
TUOLUMNE RIVER BASIN 215

Tiiolumne River near Hetch Hetchy, Calif.

Location.- Water-stage recorder, iat. 37°56', long. 119°48', In SEi sec. 17, T. IN., 

 R". 20 E., in Yosemlte National Park, about a mile downstream from O'Shaughnessy Dam

at Hetch Hetchy and 2.5 miles downstream from Falls Creek. Altitude of gage, about

3,450 feet (from topographic map).

Drainage area.- 462 square miles.

Records available.- December 1914 to September 1942.

Average discharge.- 27 years (1915-42), 969 second-feet.

Extremes.- Maximum discharge during year, 8,350 second-feet June 11 (gage height, 12.30 

reet;; minimum, 635 second-feet (regulated) Dec. 3.

1915-42: Maximum discharge, 12,000 second-feet June 16, 1929 (gage height, 13.58 

feet), reservoir full and spilling; minimum, 1.2 second-feet (regulated) Jan. 18, 1931.

Remarks.- Records excellent. No diversions. Flow regulated by Hetch Hetchy Reservoir. 

(See preceding page.)

Rating table, 1941-42 (gage height, In feet, and discharge, In 

second-feet)

5.6 615 7.5 1,330

6.0 730 8.0 1,640

6.5 895 9.0 2,440

7.0 1,090 10.0 3,570

11.0 5,290

12.0 7,570

12.3 8,350

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

760

757

754

754

751

Nov.

721

721

724

724

724

748 724

745. 739

742 748

739 745

739

739

736

733

730

730

733

751

748

745

742

739

739

736

736

733

730

727

724

724

721

721

745

742

742

742

757

763

760

760

757

757

754

751

748

745

743

739

736

733

748

754

754

-

Dec.

751

751

715

713

721

724

724

724

724

724

721

721

718

718

718

718

715

715

715

715

715

712

713

709

706

706

712

721

718

712

706

Jan.

703

703

700

a700

a703

a703

a712

a706

700

700

700

697

697

697

697

697

694

694

694

694

715

721

724

727

733

730

745

742

739

739

736

Feb.

736

736

736

739

745

751

754

742

739

736

733

733

730

727

727

724

724

718

718

715

715

712

712

709

706

706

705

700

_

-

~

Month

October. .... ........ ...... . .... . .

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

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

Calendar year 1941 ..... .....

January. ......... .......... ... .... .

February. . .... . . . . .

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

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

May. . . .....

June ...... . .

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

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

September . .... .... ......

Water year 194"1 -42 . .......

Mar.

700

697

697

694

694

691

691

691

691

691

694

694

694

694

694

694

694

691

691

691

688

698

688

685

685

697

703

703

703

700

700

Apr.

Secondfoot-days

2H.90G

22,299

2;:, 279

4J8,624

22,042

20,326

21,603

21,843

45,159

131,890

88,450

22,555

22,449

513,706

a No -:i.-e-hei,";ht-. " <''' ; dischMrj-e commuted on basis

record! at Hetc-i Hetchy.

Tirr.p basis: Pacific sti.icJi.-d tire r.r-lor to 2 a.m., I

To convert, win- i i- " to st-.rid.ri. tl e, -ubtr-ict 1 hour.

703

703

706

715

718

718

718

721

721

724

727

730

736

733

721

724

727

730

730

733

736

742

743

751

757

760

766

730

706

709

"

May

715

715

715

713

721

724

727

736

745

751

757

760

763

766

769

769

772

775

781

790

800

818

832

1,230

5,700

5,890

3,890

3,290

2,710

2,400

2,630

Maximum

760

763

751

7,800

745

754

703

766

5,890

7,930

5,980

751

757

7,930

June

3,570

4,710

4,290

4,970

6,640

7,800

7,570

6,240

6,810

7,880

7,930

7,600

7,240

7,240

7,620

7,loO

6,690

6,950

6,730

6,000

5,430

5,670

6,060

6,170

5,730

4,690

3,820

3,810

4,220

4,690

~

Minimum

721

721

706

45

694

700

685

703

715

3,570

763

694

736

685

July

5,110

5,490

5,670

5,590

5,980

5,230

4,640

4,160

3,540

3,220

3,110

2,800

2,480

2,500

2,870

3,000

2,620

2,240

2,060

1,880

1,720

1,630

1,530

1,440

1,330

1,260

1,390

1,260

1,020

867

763

Aug.

Mean

739

743

719

1,339

711

726

694

728

1,457

6,063

2,853

728

74c5

1,407

of range of stage, temperature or

7 eb. 9, 1942; Pacific war tine the

715

694

715

724

724

724

724

724

724

724

721

721

721

721

721

721

718

718

718

715

736

751

748

745

745

745

742

742

739

739

736

Sept.

736

736

745

751

751

748

748

745

742

742

748

751

751

751

740

748

745

745

754

757

757

757

754

754

754

751

748

745

745

742

~

Runoff in 

acre-feet

45,430

44,230

44,190

969,200

43,720

40,320

42,660

43,320

89,570

360,800

175,400

44,740

44,530

1,019,000

d rainfall

reafter.
216 TUOLUMNE RIVER BASIN

Don Pedro Reservoir near La Grange, Calif.

Location.- Water-stage recorder, lat. 37°42'48", long. 120°24'14", In SWi sec. 35, T.

 25., R. 14 E., at Don Pedro Dam on Tuolumne River, 1 mile downstream from Rogers 

Creek and 5.5 miles upstream from La Grange. Datum of gige is at mean sea level 

(levels by Turlock Irrigation District).

Drainage aiea.- 1,539 square miles.

Records available.- October 1924 to September 1942 (1924-30, gage heights only).

Extremes.- Maximum contents during year, 291,200 acre-feet July 1 (elevation, 605.8

 feet); minimum, 92,700 acre-feet Dec. 2 (elevation, 529.2 feet).

1924-42: Maximum contents, 292,100 acre-feet June 13, 1937 (elevation, 606.1 

feet); minimum, 29,200 acre-feet Sept. 1-3, 5, 1934 (minimum elevation, 475.0 feet, 

Sept. 1, 2, 1934).

Remarks.- Reservoir is formed by concrete gravity-type dam, completed about Jan. 1, 1923;

 sTorage began Nov. 14, 1922. Total usable capacity, 260,000 acre-feet between

elevations 476 feet (mutually agreed-upon minimum) and 605.55 feet (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 midnight 

of which 30,000 acre-feet (mutually agreed-upon minimum) is not available for 

release.

Cooperation.- Water-stage recorder graph furnished by Turlock and Modesto Irrigation

Contents, In acre-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

156,200

153,800

151,600

149,100

147,000

144,300

141,900

139,300

137,000

134,600

132,300

129,800

128,300

124,800

122,100

119,700

117,300

114,500

111,600

109,300

107,100

106,300

105,700

104,500

103,600

102,800

102,200

101,500

100,900

100,300

99,600

Nov.

98,900

100,100

101,700

102,000

102,000

101,800

101,700

101,300

100,700

100,500

100,500

100,100

99,800

99,400

98,900

93,700

98,400

98,400

97,900

97,600

96,800

96,800

96,500

96,300

95,700

95,200

94,500

94 , 000

93,400

93,100

-

Dec.

93,100

92,700

113,900

119,000

121,200

122,100

123,000

123,200

123,200

123,200

123,000

122,800

122,300

122,300

121,700

122,800

123,200

122,300

121,200

119,900

118,800

117,100

115,800

114, 3"0

112,400

111,000

110,300

111,800

117,100

122,800

125,500

Jan.

127,700

129,800

131,200

132,300

133,200

133,900

133,500

133,000

132,600

131,900

130,700

130,200

129,600

128,600

128,000

126,800

125,700

123,900

122,800

121,200

119,700

118,600

118,200

119,700

131.900

137,900

151,600

163,600

169,500

173,100

174,600

Feb.

175,900

177,500

181,700

187,000

194,300

205,400

216,500

223,700

228,900

233,000

236,500

239,500

242,400

244,800

246,600

248,700

248,700

247,200

245,400

243,600

241,300

239,800

238,300

236,500

235,100

233,300

231,200

229,200

_

-

-

Mar.

226,300

224,000

222,000

220,200

218,200

216,800

215,300

213,600

212,800

211,600

214,200

215,900

216,800

217,300

217,900

217,900

217,600

217,300

216,800

215,900

215,100

213,900

212,800

211,900

210,500

209,000

207,700

206,000

204,600

203,500

202,900

Apr.

201,500

201,000

201,500

209,700

215, 60Q

21d,600

219,900

220,800

222,200

224,800

227,700

230,400

233,000

244,500

249,300

253,500

258,700

261,800

263,900

255,100

266,100

267,600

267,600

267,000

267,000

266,700

267,300

267,000

263,400

266,100

~

May

266,700

266,400

266,100

266,400

266,100

266,100

266,700

267,000

267,300

266,700

266,700

266,100

265,800

265,500

266,100

265,800

265,500

265,500

266,100

257,600

268,600

269,200

268,600

268,600

272,900

272,900

270,400

269,500

268,600

267,900

267,900

June

268,900

270,400

269,800

270,400

271,700

272,900

272,600

271,700

271,700

272,600

272,600

272,300

272,000

271,700

272,300

271,700

271,000

271,700

272,000

271,700

271,700

272,900

274,200

275,700

2r'6,700

275,400

273,500

275,700

281,000

287,000

-

July

291,200

290,500

288,000

285,100

284,200

282,300

284,200

287,400

288,000

288 , 000

288,900

289,300

289,300

288,600

239,600

290,500

289,900

288,900

287,400

286,700

286,100

286,700

286,700

286,700

286,400

286,100

285,100

284,800

283,900

282,300

280,100

Aug.

278 , 200

276,000

273,800

272,000

269,800

267,900

265,500

263,300

260,800

258,700

256,300

204,500

252,300

243,900

247,500

244,800

242,400

240,100

237,700

235,400

232,800

230,400

227,700

225,100

222,500

220,200

217,600

214,800

212,200

209,400

206,600

Sept.

204,300

202,400

200,100

197,600

195,400

192,700

190,500

188,100

185,600

183,300

181,100

178,800

175,900

173,600

171,300

168,700

166,200

163,900

161,400

158,200

155,700

153,300

151,100

148,600

146,000

143,400

140,000

137,200

134,400

131,900

-

slevation and contents, water year October 1941 to September 1942

Ca

.

Aug.

Sept

Wo

Date

lenclar year 1941. . . .

.30. ................

ter year 1941-42. . . .

Elevation 

(feet)

529 4

598 4

548.3

-

Contents 

(acre-feet)

229 200

131,900

-

Change In contents 

during month 

(acre-feet)

-1,300

-74,700

-26,800

Pacific wor 

tract 1 hou

Pacific standard time 

Tie thereafter. To con

prior to 2 

rert war tim
TUOLUMNE RIVER BASIN 217

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

Location.- Water-stage recorder, lat. 37°42'35", long. 120°24'45", In NEi sec. 3, T. 3 

S., R. 14 E., half a mile downstream from Don Pedro Dam, 3i miles upstream from La 

Grange Dam, and 5 miles upstream from La Grange. Altitude of gage, about 330 feet 

(from topographic map).

Drainage area.- 1,540 square miles.

Records available.- March 1915 to September 1942. August 1895 to September 1917 at

 La Grange Uam, 3i 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.

Average discharge.- 47 years (1895-1942), using 1895-1916 records of combined flow of

 river ana canals, and including Hetch Hetchy diversion of 2,589 second-feet to San 

Francisco.

Extremes.- Maximum discharge during year, 15,500 second-feet May 26 (gage height, 18.8 

reetj; minimum, 309 second-feet (regulated) Dec. 26.

1895-1942: Maximum discharge, 60,300 second-feet (not regulated) Jan. 31, 1911 

(gage height, 16.45 feet at site at La Grange Dam from graph constructed on basis of 

frequent gage readings), from rating curve extended above 18>000 second-feet; 

minimum, about 0.5 second-foot (regulated) many days in October and November 1931.

Remarks.- Records excellent. A small amount of water is diverted above station for

 irrigation. Diversion through Hetch Hetchy aqueduct to San Francisco began Oct. 19, 

1934; for present year It amounted to an average of 25 second-feet. Flow regulated 

by Don Pedro Reservoir (see preceding page), Hetch Hetchy Reservoir (p. 214 ), and 

Lake Eleanor (p. 221 ) 

Rating table, water year 1941-42 (gage height, in feet, and discharge, in second-feet)

6.9 

7.2 

7.5 

7.S

910 

1,090 

1,280 

1,4SO 10.0

1,690

2,000

2,440

3,340

11.0

12.0

13.0

14.0

4,340

5,460

6,720

8,100

15.0

16.0

17.0

18.0

9,600

11,100

12,600

14,200

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2,140

2,110

2,140

2,090

2,000

2,100

2,150

2,130

2,130

2,090

2,110

2,090

2,130

2,110

2,150

2,130

2,100

2,120

2,120

2,140

2,080

1,420

1,310

1,360

1,290

1,210

1,330

1,380

1,330

1,320

1,300

Nov.

1,270

1,150

1,230

1,240

1,190

1,200

1,170

1,170

1,060

1,180

1,050

1,140

1,160

1,170

1,130

1,050

1,160

1,160

1,170

1,070

1,130

1,160

1,060

1,130

1,210

1,170

1,190

1,200

1,200

1,090

-

Dec.

1,200

1,230

1,150

,130

,160

,080

,000

,110

,120

,120

,100

,100

,060

,010

,810

,940

,930

,910

,920

,950

,840

,940

,900

,920

,840

,910

,960

,890

,940

,940

,910

Jan.

1,040

1,070

1,070

970

1,060

1,050

1,640

2,160

2,150

2,150

2,140

2,140

2,160

2, ISO

2,180

2,180

2,130

2,190

2,150

2,080

2,100

2,110

2,120

2,120

2,140

2,140

2,200

2,210

2,120

2,060

2,050

Feb.

2,030

2,020

1,430

970

994

994

1,010

922

1,010

9SS

982

9S8

994

9SS

934

1,010

1,360

2,810

2,S20

2,790

2,800

2,690

2,740

2,790

2,770

2,770

2,770

2,740

-

-

-

Mar.

2,840

2,950

2,940

2,900

2,890

2,910

2,890

2,320

2,870

2,870

2,S60

2,830

2,920

2,910

2,820

2,900

2,880

2,900

2,920

2,S90

2,890

2,800

2,920

2,930

2,940

2,910

2,920

2,390

2.S10

2,950

2,980

Apr.

3,230

3,240

3,230

2,930

2,880

3,260

3,290

3,290

3,300

3,300

2,930

2,930

3,580

3,970

3,950

3,080

3,050

3,030

3,220

4,130

4,370

4,890

5,300

4,910

4,700

4,560

4,460

4,900

4,340

3,S60

-

May

4,210

4,370

3,900

4,090

4,410

4,470

4,790

5,220

5,720

5,580

5,130

4,890

4,340

4,010

4,130

4,640

4,080

4,050

4,560

5,680

7,050

7,960

8,120

6,950

9,460

14,100

10,400

8,340

7,230

6,200

5,940

June

7,330

3,740

9,220

9,210

10,700

12,800

13,100

11,700

11,100

12,300

12,600

12,400

11,300

11,200

11,600

11,600

10,800

10,400

10,500

9,700

3,660

S,220

8,040

7,960

3,440

8,250

7,260

4,770

3,900

3,900

-

July

5,540

3,440

9,340

9,480

8,960

8,670

5,640

4,690

4,690

4,890

4,240

3,370

3,900

3,930

3,460

3,960

4,4SO

4,030

3,840

3,250

2,880

2,090

2,020

2,030

2,060

2,020

2,060

2,020

2,010

2,020

2,030

Aug.

2,040

2,000

2,030

2,020

2,040

2,030

2,030

2,060

2,010

2,040

2,050

2,070

2,080

2.0SO

2,100

2,070

2,120

2,130

2,150

2,140

2,170

2,170

2,130

2,170

2,170

2,190

2,220

2,240

2,220

2,120

2,240

Sept.

1,990

2,000

1,990

2,020

2,020

1,970

1,970

2,030

2,060

2,100

2,060

2,110

2,040

2,050

2,060

2,090

2,100

2,080

2,110

2,110

2,120

2,130

2,070

2,070

2,080

2,120

2.1OO

2,140

2,090

2.1OO

-

Month

Decembe r ...................................

September. . . ... .... . . . . ... . . .

Water year 1941-42 . . . ........

Time basis: Pacific standard time prior 

To convert war time to standard time, subtr

Secondfoot-days

57,610

34,740

43,020

50,614

39,700

112,160

238,200

61,930

1,134,624

to 2 a.m., P 

act 1 hour.

Maximum

2,150

1,270

1,960

2,880

5,300

2,140

14,100

eb. 9, 1942

Minimum

1,210

1,050

1,000

922

2,880

1,970

922

; Pacific w

Mean

1,858

1,158

1,549

1,308

3,739

2,066

3,246

ar tine the

Runoff in 

acre- feet

114,300

68,910

95,250

2 ' 427 , wOOO

282,500

122,900

2,350,000

-eafter.

530350 O - 43 - 15
218 TUOLUMNE RIVER BASIN

Tuolumne River at Tuolumne City, Calif.

Location.- Water-stage recorder, lat. 37°36'15", long. 121°07'50", In TJWi sec. 7, T. 4 S., 

R. 8 E., at highway bridge at west edge of Tuolumne City, 3£ miles upstream from 

mouth. Zero of gage Is set to datum of Corps of Engineers, U. f>. Army.

Records available.- October 1940 to September 1942 In reports of Geological Survey. 

1930 to 1935 Clow-water periods only) and 1936-42 In reports of Division of Water 

Resources, Department of Public Works, State of California.

Extremes.- Maximum dally discharge during year, 12,000 second-feet June 13; minimum daily, 

520 second-feet Aug. 4.

1941-42: Maximum dally discharge, that of June 13, 1942; minimum daily, 300 

second-feet Feb. 6, 1941.

Cooperation.- Records furnished by city of San Francisco and Division of Water Resources, 

Department of Public Works, State of California.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

900

960

925

975

900

885

910

950

950

955

950

955

965

980

1,150

1,350

1,165

1,035

1,015

1,080

1,075

1,040

1,025

1,030

1,040

1,050

1,100

1,110

1,075

1 , 055

1,040

Nov.

1,120

1,100

1,005

960

960

930

920

910

905

920

925

1,110

1,400

1,490

1,535

1,510

1,480

1,530

1,530

1,495

1,310

1,175

1,090

1,020

1,030

1,025

1,010

1,O10

1,010

1,010

-

Dec.

950

945

950

915

890

1,170

1,410

1,375

1,440

1,445

1,490

1,505

1,500

1,490

1,465

1,920

2,170

2,180

2,190

2,190

2,200

2,175

2,245

2,230

2,230

2,195

2,215

2,275

2,245

2,250

2,395

Jan.

2,695

2,035

1,690

1,595

1,475

1,460

1,430

1,722

2,410

2,385

2,415

2,445

2,445

2,445

2,475

2,470

2,475

2,475

2,475

2,445

2,460

2,445

2,455

2,485

2,530

2,950

2,900

2,885

3,220

2,730

2,500

Feb.

2,340

2,300

2,240

1,950

1,435

1,870

2,245

2,000

1,570

1,540

1,500

1,485

1,420

1,465

1,480

1,515

1,515

2,125

2,930

2,860

2,720

2,805

2,770

2,790

2,820

2,790

2,745

2,710

_

-

-

Mar.

2,610

2,420

2,310

2,325

2,230

2,220

2,210

2,050

1,860

1,900

1,820

1,850

1,930

1,960

2,300

2,565

2,680

2,630

2,780

2,605

2,605

2,555

2,520

2,590

2,640

2,610

2,475

2,065

2,040

1,790

1,810

Apr.

1,810

1,960

1,810

1,850

1,640

1,620

1,820

2,080

2,330

2,450

2,460'

2,190

2,080

2,900

3,320

3,320

2,570

2,470

2,520

2,610

3,220

3,480

4,240

4,810

4,590

4,310

4,290

4,010

4,200

3,500

-

May

3,070

3,280

3,430

3,210

3,250

3,410

3,560

3,780

3,530

3,850

3,760

3,470

2,900

2,690

2,400

2,750

2,840

2,360

2,260

3,160

3,560

4,600

5,280

5,440

4,770

6,850

9,840

9,120

6,700

4,930

4,000

June

3,710

4,630

6,230

6,990

7,160

8,570

9,570

11,330

10,090

9,300

9,330

11,600

12,000

11,100

9,950

9,970

9,760

8,420

8,110

8,030

7,610

5,790

5,320

5,170

5,130

5,640

5,340

4,420

2,690

1,450

-

July

,415

,510

,340

,860

,230

,240

,020

,720

,470

,280

,130

,880

,620

,505

,460

,460

,470

,760

,540

,470

,310

,290

,030

,060

,040

840

670

630

605

600

620

Aug.

600

605

555

520

580

595

595

545

585

530

540

620

650

760

870

755

620

560

620

600

735

350

730

545

635

930

980

995

975

775

590

Sept.

615

845

845

870

900

920

920

900

930

910

865

860

840

850

845

870

865

855

865

910

920

900

890

860

880

900

915

930

915

960

-

Month

January. ... ... ... ...... 

February ... 

March 

April 

Hay. 

June 

July . 

August 

September.

Water year 1941-42

Secondfoot-days

54,245

939,505

73,022 

59,935 

70,955 

86,460 

128,050 

224,410 

66,125 

21,045

876,617

Maximum

2,395

11,550

3,220 

2,930 

2,780 

4,810 

9,840 

12,000 

6,2oO 

995 

960

12,000

Minimum

905

890

300

1,430 

1,420 

1,790 

1,620 

2,200 

1,450 

600 

520 

615

5PO

Mean

1,148

1,750

2,356 

2,141 

2,289 

2,882 

4,131 

7.4DO 

2,133 

679 

070

2,402

Runoff in 

acre feet

60,280

107,600

144,800 

118,900 

140,700 

171,500 

254,000 

445,100 

131,200 

41,740 

52,260

1,730,000

Feb. 9, tIpo thorsa fte
TUOLUMNE RIVER BASIN 219

Falls Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°58', long. 119°46', In NEi sec. 3, T. 1 II., R.

 20 E., In Yosemlte National Park, a quarter of a mile upstream from Wampana Falls, 1 

mile upstream from mouth, and 2 miles northeast of Hetch Hetchy. Altitude of gage, 

about 5,600 feet (from topographic map).

Drainage area.- 45.2 square miles.

Records available.- November 1915 to September 1942.

Average discharge.'- 26 years (1916-42), 140 second-feet.

Extremes.- Maximum discharge during year, 2,850 second-feet Dec. 3 (gage height, 7.50

 feet), from rating curve extended above 1,250 second-feet on basis of velocity-area

studies; minimum, 0.1 second-foot Oct. 4, 9-13, 17-19.

1915-42: Maximum discharge, 6,300 second-feet Dec. 11, 1937 (gage height, 8.90

feet), from rating curve extended above 1,250 second-feet on basis of velocity-area

studies; no flow at times during several summers. 

Remarks.- Records good except those for periods of Ice effect, which are fair. No

diversions.

Rating table, water year, 1941-42, except periods of ice 

effect (gage height, in feet, and discharge, in second-feet)

1.34

1.4

1.5

1.6

1.7

1.8

1.9

2.0 

2.2 

2.4 

2.6 

2.8

1.5 

2.2 

4.0

a

15

24

3.0

3.3 

3.6 

3.9 

4.2 

4.5

41

85

145

218

307

409

4.8 

5.2 

5.6 

6.0 

6.4

521

705

955

1,260

1,560

1,950

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.3

.2

.2

.1

.3

.9

.4

.£

.1

.1

.1

.1

.1

.2

.3

.2

.1

.1

.1

.9

3.0

2.8

2.4

2.6

3.3

3.2

14

12

10

8.5

7.5

Nov.

24

240

240

147

105

87

71

62

52

41

36

31

27

24

22

26

39

34

30

25

22

21

19

17

16

16

15

15

25

39

-

Dec.

34

175

1,900

573

292

178

125

99

85

82

65

56

51

58

156

178

111

94

87

89

78

66

66

64

62

58

82

76

103

blOO

b95

Jan.

b90

b80

b60

b50

b40

47

56

82

73

76

85

89

87

83

73

64

58

52

52

51

49

51

52

75

166

159

276

170

119

94

76

Feb.

66

64

65

65

80

71

64

65

59

53

56

62

b50

b50

b45

b40

b4O

40

38

38

39

43

b40

b40

b40

b40

,39

b35

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February. ............. ......... ...... . .

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

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

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

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

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

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

September. .................................

Water year 1941-42 .... .................

Mar.

40

53

58

68

85

92

89

103

109

113

134

115

87

71

68

65

68

76

65

62

70

78

82

73

62

59

64

75

96

121

138

Apr.

147

173

232

298

182

132

134

161

187

205

210

252

301

366

240

213

190

156

190

235

285

349

329

273

301

270

249

205

163

147

-

Secondfoot-days

74.3

1,568

5,338

69,389.8

2,635

1,427

2,539

6,775

13,193

24,055

12,550

762.5

62.3

70,979.1

May

143

141

161

185

221

288

391

483

533

449

326

264

229

218

255

221

213

282

413

625

826

985

934

826

1,120

716

434

377

292

276

366

Maximum

14

240

1,900

1,900

276

80

138

366

1,120

1,080

885

56

4.6

1,900

June

557

716

601

738

920

080

1,030

766

852

1,020

962

927

885

872

970

927

820

866

852

749

700

749

814

859

784

625

513

561

635

705

-

Minimum

0.1

15

34

.1

40

35

40

132

141

513

65

5

.4

.1

July

772

833

859

790

885

710

640

620

506

468

464

413

366

356

438

491

409

317

298

258

226

215

195

215

185

152

125

107

94

78

65

Aug.

56

49

42

39

38

39

36

33

30

29

29

30

39

38

31

27

22

20

18

16

15

13

11

10

10

9

8.5

7.5

6.5

6

5

Mean

2.40

52.3

172

190

85.0

51.0

81.9

226

426

802

405

24.6

2»08

194

Sept.

4.6

3.9

3.6

3.5

3.3

3.2

3.1

2.9

2.8

2.8

2.7

2.4

2.4

2.4

2.3

2.1

1.9

1.7

1.6

1.3

1.2

1.1

.9

.9

.8

.7

.6

.6

.6

.4

-

Runoff in 

acre-feet

147

3,110

10,590

137,600

5,230

2,830

5,040

13,440

26 ,170

47,710

£4 ,890

1,510

124

140,800

b Stage-discharge relation affected by Ice. 

Time basis: Pacific standard time prior to

time to standard time, subtract 1 hour.

Feb. 9, 1942; Pacific war time thereafter.
220 TUOLUMNE RIVER BASIN

Cherry Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 38°00', long. 119°54', In SWt sec. 28, T. 2 N.,

 ft. 19 2., 2* miles northwest of Lake Eleanor Dam, 4 miles upstream from Eleanor 

Creek, and 7i miles northwest of Ketch Hetchy. Altitude of gage, about 4,500 feet 

(from topographic map).

Drainage area.- Ill square miles.

Records available.- April 1910 to September 1942.

Average discharge.- 32 years, 366 second-feet.

SxtreTes.- Maximum discharge during year, 10,100 second-feet Dec. 3 (gage height, 16.60

 feet); minimum, 2.8 second-feet Sept. 25-29.

1910-42: Maximum discharge, 18,100 second-feet Dec. 11, 1937 (gage height, 25.1 

feet, from floodmarks), from rating curve extended above 4,000 second-feet on basis 

of velocity-area studies; no flow Sept. 6-12, 1910.

Re-narks.- Records good. No diversions above station. Release from small reservoirs 

increases normal sutler flow.

Rating 1941-42 (gage height, in feet, and discharge, in 

second-feet)

1.0

1.1

1.2 

1.4 

1.6

1 to Dec. 2 Dec. 3 to Sept. 30

3.0 

3.4 

3.R 

4.2

155

247

350

490

650

812

990

4.6 

5.0 

5.5 

6.0 

6.3

1,190

1,380

1,660

1,950

2,140

2.0 

4.0

14

22

44

72

108

2.2 

2.5 

2.8 

3.? 

3.6 

4.0 

4.5 

5.0

1S3

276

380

526

680

845

1,070

1,320

5.5

6.0

7.0

S.O

9.0

10.0

11.1

Discharge, in second-feet, water year October 1941 to September 1942

1,600

1,880

2,490

3,160

3,830

4,660

5,540

Day

1

2

3

4

5

6

7

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.

4.2

3.4

3.0

3.0

3.6

6

6.5

3

4.2

4.0

3.8

3.6

3.8

6

4.6

4.4

4.0

3.8

3.8

24

51

31

13

8

13

14

96

84

45

31

22

Nov.

246

1,150

523

264

179

130

107

31

80

67

59

52

45

39

35

127

141

89

73

56

46

42

34

32

31

30

28

27

211

207

-

Dec.

133

2,110

5,500

1,070

530

337

247

201

172

204

152

126

J19

158

673

726

327

270

263

263

210

180

177

175

145

145

142

148

241

283

241

Jan.

201

201

163

142

a!40

a!45

169

279

222

235

270

270

254

241

210

180

163

158

155

150

150

180

183

320

606

561

1,310

660

405

303

247

Feb.

225

260

241

235

283

307

260

219

204

192

133

175

155

145

133

135

135

133

132

132

138

133

135

130

126

126

121

121

-

-

-

Month

October. ... . ................ . . . . ...

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

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

Calendar year 194 L . . ...... ... . . . ...

January. . . . . . ... . ...... .... . . . .

February ............. . . ...

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

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

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

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

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

August .....

September. . . . ...

Water year 1^41-4? . . . . .

liar.

140

180

189

216

266

290

270

320

330

341

391

303

244

207

198

198

213

241

201

136

213

241

241

207

175

169

186

216

276

337

391

Apr.

366

466

1,050

1,170

Hay

448

391

48S

606

59S 684

412

384

466

537

668

602

772

1,100

1,220

610

545

484

409

564

716

904

1,100

953

720

881

780

796

583

441

402

~

Secondfoot-days

512.7

4,246

15,573

190,491.8

8,893

4,929

7,576

20,749

36,876

fa7,280

21,342

9.53 .5

132.3

173,137.5

917

1,140

1,360

1,450

1,100

917

672

575

617

732

522

632

904

1,380

2,040

2,460

2,740

2,320

2,250

3,020

1 , 5SO

1,100

1,020

776

845

1,190

Maximum

96

1,150

5,500

5,500

1,310

307

391

1,220

3,020

2,640

1,690

70

8.5

5,500

June

1,620

1,860

1,630

2,060

2,470

2,640

2,300

2,030

2,330

2,410

2,310

2,240

2,130

2,220

2,330

2,030

1,920

2,030

1,920

1,660

1,650

1,770

1,860

1,840"

1,600

1,220

1,060

1,240

1,380

1,520

"

Minimum

3.0

27

119

3.0

140

121

140

366

391

1,060

84

8.5

2.8

2.8

July

1,630

1,690

,630

,570

,620

,340

,170

,060

S53

796

764

648

560

572

720

760

575

430

420

362

320

300

260

257

232

195

161

135

117

100

84

Aug.

70

60

54

45

42

42

42

43

39

34

33

34

37

53

50

36

28

24

20

18

19

17

15

13

13

10

10

10

10

8.5

9

Mean

16.5

142

506

522

2»7

176

244

692

1,190

1,909

688

20.3

4.08

491

Sept.

7

7.5

8.5

4.4

3.8

3.6

3.6

3.4

3.4

3.6

7.5

7

5

4.0

3.8

3.6

3.6

3.4

3.2

3.2

3.2

3.0

3.0

3.0

2.8

2.8

2.8

2.8

2.8

3.0

~

Runoff in 

acre- feet

1,020

8,420

31,090

377,900

17,640

9,780

15,030

41,160

73,140

113,600

42,330

1,860

243

355,300

Feb. 9, 1942; "pacific war tine there
TUOLUH1IE RIVER BASIN 221

Lake Eleanor near Hetch Hetchy, Calif.

Location.- Water-stage recorder, lat. 37°58', long. 119°53', In TJWi sec. 3, T. IN., R.

 19 E., at dan on Eleanor Creek, 1.7 miles upstrean from riiguel Creek and 5t rales 

northvrest of Hetch Ketchy. Datum of gage is at mean sea level (levels by city of 

San Francisco).

Drainage area.- 79 square miles.

Records available.- October 1919 to September 1942 (1919-30, rage heights only).

Extremes.- Maximum contents during year, 27,200 acre-feet June 29 and 30 (elevation,

 TTBBTTl feet); minimum, 4,400 arre-feet Nov. 2F (elevation, 4,630.5 feet).

1919-42: Maximum contents, 29,400 acre-feet Mar. 2b, 1928 (elevation, 4,661.7 

feet); no usable contents Nov. 23 to Dec. 20, 1921, Feb. 21 to Mar. 3, Nov. 21 to 

Dec. 10, 1929, Dec. 18-24, 1930.

Remarks.- Reservoir is formed by multiple-arch dam completed in 19IE; storage began

 June 23, 1918. Usable capacity, 26,100 acre-feet (revised) between elevations 

4,620.9 feet (natural outlet of old lake) and 4,660.0 feet (top of 5-foot flashboards) above mean sea level. Water is released down Lleanor Creek for power 

developrer.t and domestic supply as part of Hetch Hetchy system of city of San 

Francisco. Records show total contents at midnight prior to Jan. 1 and available 

contents at midnight thereafter.

Contents, in acre-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

12,900

12,600

12,400

12,100

1) ,600

11,400

11,200

. 10,800

10,500

10,300

9,960

9,750

9,410

9,130

8,860

8,5dO

8,310

7,960

7,620

7,350

6,930

6,880

6,880

6,760

6,430

6,140

5,920

5,640

5,350

5,130

4,900

Nov.

4,790

5,750

6,310

6,600

6,710

6,760

6,710

6,650

6,540

6,370

6,260

6,030

5,860

5,640

5,350

5,130

5,130

5,300

5,300

5 , 300

5,180

5,130

5,070

4,960

4,790

4,680

4,550

4,400

4,450

4,680

-

Dec.

4,850

6,310

14,300

15,700

16,400

16,800

17,100

17,400

17,600

17,800

18,000

18,200

18,300

18,600

19,600

20,900

21,400

21,900

22,300

22,800

23,200

23,300

23,700

23,900

24,100

24,100

24,300

24,600

24,900

25,300

25,500

Jan.

23,900

23,800

23,800

23,700

23,600

23 , 500

23,600

23,800

23,900

24 , 000

24,000

24,100

24,100

24,100

24,000

24,000

23,900

23,900

23,900

23,900

23,900

23,900

23,900

24,200

24,600

24,700

25,200

24,800

24,500

24,300

24,100

Feb.

24,100

24,100

24,100

24,100

24,200

24,200

24,200

24,100

24 , 000

24,000

23,900

23,900

23,900

23,800

23,800

23,800

23,800

23,800

23,800

23,800

23,800

23 , 800

23,800

23,800

23,800

23,800

23,700

23,700

-

-

-

Mar.

23,700

23,700

23 , 800

23,800

23,900

24 , 000

24,000

24,100

24,100

24,100

24,200

24,200

24,100

24 , 100

23,900

23,900

23,900

23,900

23,900

23,900

23,900

24,000

23 , 900

23,900

23,900

23,900

23,900

23 , 900

24,000

24,100

24,200

Apr.

24,200

24,300

24,800

24,900

24,600

24,300

24,300

24,400

24,500

24 , 600

24,600

24,700

24,800

25,000

24,800

24,500

24,400

24,400

24,500

24,700

24 , 800

24,800

24,800

24,700

24,700

24,700

24,700

24,500

24,300

24 , 200

-

May

24 , 300

24,300

24,300

24 , 500

24,600

24 , 800

24,900

25,100

25 , 000

24,800

24,700

24,500

24,500

24,500

24,600

24,500

24,600

24,800

25,100

25,600

5,800

5,800

5,600

5,500

6,100

5,400

5,000

4,800

4,700

4,700

24,800

June

25,000

25,000

25,000

25,200

25,400

25,400

25,200

25,100

25,200

25,200

25,200

25,100

25,100

25,100

25,100

25,000

24,900

24,800

24,800

24,800

24,800

25,200

26,200

27,100

27,100

27,000

27 , 000

27,100

27,200

2*7,200

-

July

27,100

27,100

27,100

27,000

27 , 000

26,900

26,900

20,900

26,900

27,000

27,000

27,000

27,000

27,000

27 , 000

27,000

27,000

27,000

27,000

27,100

27,100

27,100

27,100

27,100

27,100

27,100

27 , 000

27,000

27,000

27,000

27,000

Aug.

27,000

27,000

27,000

26,900

26,900

26,900

26,800

26,700

26,600

26,400

26,300

26,200

26,100

26,100

25,900

25,800

25,700

2!->,500

25,300

25,200

24,900

24,800

24,700

24,400

24,200

23,900

23,700

23,500

23,400

23,200

23,000

Sept.

22,800

22,500

22,400

22,100

22,000

21,800

21,600

21,300

21,100

20,900

20,700

20,500

20,300

20,100

19,900

19,700

19,400

19,100

18 , 900

18,700

IB, 500

18,200

18,100

17,900

17,600

17,400

17,200

16,900

16,700

16,600

-

Monthly elevation and contents, wiite" year October 1941 to Sept

Date

Dec. 31. .................

C&lendar year 1941.....

Sept. 30. .................

Water year 1941-42.....

Elevation 

(fast)

,657.5

-

,649.5

-

Contents 

(acre-feet)

25,500

-

P7*pon

27*ooo

23*000

16,600

-

Cnange In contents 

during month 

(acrs-ieet)

+20,820

+8,100

-6,400

+5,000

Note.- Figures of change in contents for January and tne water yen 

do not agree with figures of contents as those before Jan. 1 arc- of 

total contents and those after that date are of usable contenls.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; 

Paciflc~war tima thereafter. To convert war tirau to standard time, 

tract 1 hour.
222 TUOLUHNE RIVER BASIN 

Eleanor Creek near Hetch Hetchy, Calif.

Location.- Water-stage recorder and concrete control, lat. 37°58', long. 119°53', in

 SWi sec. 3, T. IN., R. 19 E., in Yosemite National Park, 0.6 mile downstream from 

Lake Eleanor Dam, 1.1 miles upstream from Miguel Creek, and 54 miles northwest of 

Hetch Hetchy. Altitude of gage about 4,600 feet (from topographic map).

Drainage area.- 80 square miles.

Records available.- November 1915 to September 1942. June to October 1901 and November

 1909 to Novemoer 1915, at site 1 mile upstream.

Average discharge.- 32 years (1910-42), 220 second-feet.

Extremes.- Maximum discharge during year, 2,230 second-feet May 25 (gage height, 6.80

 feet); minimum, 1.5 second-feet (regulated), estimated, Oct. 22, 23.

1909-42: Maximum discharge, 10,500 second-feet Dec. 11, 1937 (gage height, 13.95 

feet), from rating curve extended above 1,500 second-feet on basis of velocity-area 

studies; no flow Sept. 8-14, 1910, Oct. 15-21, 1930, Nov. 19, 22, 23, 1931, Dec. 6, 

1933.

Remarks.- Records good. 

pageT.

No diversions. Flow regulated by Lake Eleanor (see preceding

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in

second-feet) 

(S'.iif ting-control method used Oct. 24 to Nov. 1.)

Oct - l-23 0?t. 24 to Sept. 30

1-1 1-9 1-6 10 2.6 73 1.3 3.1 2.0 27 3.2 177 4 7 740

1.2 2.8 1.8 17 2.8 98 1.4 5.0 2.2 40 3.5 248 5.0 890 

1 ' 3 4 '° 2.0 26 3.0 130 1.5 7.4 2.4 58 3.8 340 54 1 110 

1.4 5.5 2.2 38 3.2 170 1.6 10 2.6 81 4.1 454 l.B 1,11° 

1.5 7.5 2.4 53 1.8 17 2.9 123 4.4 590 6.3 1,760

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

155

153

149

149

149

149

149

151

151

149

151

149

149

149

151

149

151

149

149

147

151

41

2.0

75

160

158

147

135

120

120

120

Nov.

104

32

4.0

4.0

12

47

66

77

90

100

107

114

120

126

133

133

62

14

34

49

58

58

58

69

74

75

75

74

56

11

-

Dec

11

13

10

3.9

3.5

3.5

3.5

3.5

3.3

3.3

6.5

15

15

12

7

7

10

8

6

10

8

10

10

33

50

87

100

110

79

45

90

Jan.

90

119

140

140

140

140

125

128

158

177

194

215

217

215

205

188

171

156

147

140

135

160

177

225

510

576

901

890

580

403

306

Feb.

254

245

265

265

291

323

320

254

220

196

181

173

158

144

130

128

125

123

120

118

122

140

130

126

122

117

111

105

_

-

Month

Octo 

Nove 

Dece

ber. . . .... . . ............. ........

mber. . . . . . . . . . . ... ......... . . 

mhnr .

Calendar year 1941 ....... ........ .

January. ........ . ........................

February. ... ........ ........

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

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

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

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

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

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

September. . ... .....

Water year 1941-42 .

Mar.

105

117

130

144

168

203

210

227

254

282

365

365

309

259

222

196

185

192

192

181

181

192

208

208

194

177

175

181

205

248

320

Apr.

340

395

542

1,080

815

533

414

406

471

566

605

630

755

1,040

770

560

510

430

434

524

640

795

805

640

655

660

660

595

458

387

-

May

399

372

391

463

528

635

780

928

1,030

906

750

600

502

471

552

556

515

595

785

1,110

1,400

1,620

1,450

1,280

1,620

1,740

1,060

860

715

630

660

Second- Maximum 

foot days

4,227.0 160 

2,036.0 133 

777.0 110

102,209.9 1,640

8,068 901

5,006 323

6,595 365

18,135 1,080

25,903 1,740

22,551 1,230

7,428 600

2,219 101

3,124 110

106,069,0 1,740

June

810

945

934

978

1,120

1,230

1,170

989

972

1,040

1,010

967

912

C30

890

870

790

760

745

695

625

365

19

153

528

493

422

369

403

467

-

Minimum

2.0 

4.0 

3.3

2.0

90

105

105

340

372

19

15

27

100

2.0

July

547

600

580

538

533

467

387

337

282

217

225

232

217

205

200

210

212

200

140

140

154

126

117

89

116

114

98

69

38

15

23

Aug.

27

31

38

50

67

66

66

65

64

67

71

70

69

69

67

66

65

70

77

76

76

80

86

88

86

88

89

89

94

101

101

Sept.

101

102

104

104

104

102

102

100

104

110

110

108

107

105

104

102

102

102

102

102

102

102

102

104

104

105

105

107

108

108

~

 Runoff in Mean acre-feet

136 8,380 

67.9 4,040 

25,1 1,540

280 202,700

260 16,000

179 9,930

213 13,080

604 35,970

8J36 51,380

752 44,730

240 14,730

71.6 4,400

104 6,200

291 210,400

Koto.- No ,;a,-e-hei -,ht record Dec. 17 to Jan. 7; discharge comouted on basis of record of release

an£e of stage, and weather records at Lake Eleanor.

rd time nrior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.

rd time, subtract 1 hour.
TUOLUMNE RIVER BASIN

South Fork of Tuolumne River near Oakland Recreation Canp, Calif.

Drainage area.- 87.6 square nlles.

Records available.- March 1923 to September 1942.

Average discharge.- 19 years, 89.4 second-feet.

Extremes.- Maximum discharge during year, 1,550 second-feet Dec. 3 (gage height, 5.65 

fpet); minimum, minimum, 15 it>second-feet second-ieet Oct. uc3. o

1923-42: Maximum discharge, 6,950 second-feet Dec. 11, 1937 (gage height, 10.00 

!Ct), from rating curve extended above 1,000 second-feet on basis of velocity-area 

,udies; minimum, 0.3 second-foot Aug. 23, 1934.

Remarks.- Records excellent. No diversions.

Rating table, water year 1941-42 (gage height, in feet, and discharge 

in second-feet)

1.4 

1.6 

1.8

2.4 

2.6 

2.9 

3.2 

3.5

103

144

189

258

3.8 

4.1 

4.4 

4.8

354

475

620

855

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

16

16

16

16

17

17

17

17

17

16

16

18

18

17

17

17

16

17

19

21

21

19

20"2

20

33

28

22

21

20

Nov.

25

69

48

32

27

24

22

22

21

20

20

20

19

19

19

22

27

24

21

22

20

21

20

21

21

21

21

21

30

41

-

Dec .

28

30

619

138

86

67

56

51

48

48

43

41

40

63

103

124

91

70

63

65

59

54

58

48

49

52

94

224

270

161

107

Jan.

8357 '

67

62

61

61

68

110

93

88

90

95

93

92

92

87

81

76

72

71

71

131

134

253

615

340

638

439

265

223

186

Feb.

168

200

238

216

279

426

466

307

244

203

184

170

157

145

137

134

129

123

119

116

119

120

112

112

104

106

10J

102

-

-

-

Month

October. ............. . . . . ....

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

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

Calendar year 19*1 . . . . ...... ...

January. . . . ........... ....

February . ... . . . . ....

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

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

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

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

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

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

September ... . .........

Water year 1541-42 ...... .... ...

Mar.

103

110

111

112

117

124

123

129

136

140

288

2ol

209

186

173

168

176

189

179

168

164

166

166

161

151

145

144

144

151

Ib8

176

Apr.

173

193

252

565

466

379

314

301

307

354

354 3"9

394

793

484

422

422

3B6

390

394

402

422

379

365

386

354

376

361

327

317

-

Secondfoot-days

583

760

3,050

56,898

4,924

5,039

4,928

11,411

12,998

9,504

2,246

891

611

56,945

May

383

344

334

334

337

361

398

434

444

394

379

347

330

320

383

347

330

340

402

506

555

535

535

535

R48

661

466

444

386

361

372

Maximum

33

69

619

625

638

466

288

793

664

488

141

38

28

793

June

410

422

402

448

488

484

434

398

422

422

410

336

3^2

372

351

314

304

294

273

247

233

230

218

202

186

170

158

155

152

147

-

Minimum

16

19

28

16

61

102

103

173

320

147

39

23

18

16

July

141

133

126

116

111

102

96

90

86

81

77

747'-

69

67

65

64

62

60

57

55

53

50

48

45

44

42

41

41

40

39

Aug.

38

38

38

36

35

34

34

33

32

31

33

31

30

29

28

28

27

26

26

25

25

24

24

24

23

23

23

23

23

24

2A

Mean

18.8

25.3

98.4

156

159

180

159

380

419

317

72.5

28.7

20.4

156

Sept.

22

22

22

22

22

22

21

21

22

23

28

24

22

21

20

20

19

19

19

19

19

18

18

18

18

18

18

18

18

18

-

Runoff in 

acre-feet

1, 160

1,510

fi . 050

1 12,900

9,770

9,990

C,?^

22,630

25.780

18,850

4,450

1,770

1,210

112,900

Peak discharge.- Dec. 3 (8 a.m.) 1,550 sec.-ft.; Jan. 25 (4:30 a.m.) 778 sec.-ft.; Jan. 27 (1 p.m.) 

1,090 sec.-ft. ; Tpr. 4 (5 a.m.) 810 sec.-ft.; Apr. 14 (4:30 a.m.) 1,360 seo.-ft.; May 25 (11 p.m.) 

1,190 sec.-ft.

Time basis: Pacific standard time prior to Z a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
224 TUOLUMNE RIVER BASIN 

Middle Tuolumne River at Oakland Recreation Camp, Calif.

Location.- Water-stage recorder, lat. 37°50', long. 120°00', In NWi sec. 28, T. IS., 

R. 18 U., at Oakland Recreation Camp, half a mile upstream from confluence with 

South Fork of Tuolumne River and 4-mlles east of Buck Meadows post office. Altitude 

of gage, about 2,800 feet (from topographic map).

Drainage area.- 71.0 square miles.

Records available.- November 1916 to September 1942.

Average discharge.- 25 years (1917-42), 71.4 second-feet.

Extremes.- Maximum discharge during year, 1,010 second-feet May 26 (gage height, 6.66 

feet); minimum, 2.9 second-feet (regulated) Oct. 4 (gage height, 0.90 foot).

1917-42: Maximum discharge, 2,910 second-feet Dec. 11, 1937 (gage height, 10.4 

feet, from floodmarks), from rating curve extended above 1,000 second-feet 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. Small diversion above station for Irrigation.

Rating table, water year 1941-42 (gage height. In feet, and discharge,

In second -feet)

0.9 2.9 l.S 23 3.5

1.0 3.8 2.0 33

1.1 4.8 2.3 49

1.2 6 2.6 72

1.4 9.5 2.9 106

1.6 15 3.2 150

4.0

4.5

5.0

5.6

Discharge, in second feet, water year October 1941

Day

1

2

3

4

5

6

7

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.

3.3

3.1

3.0

3.0

3.2

3.4

3.7

4.0

4.1

4.0

3.8

3.7

3.9

4.2

4.2

4.0

4.0

3.9

3.9

4.3

5

6

6

6

6.5

6.5

8

10

S.5

7

6.5

Nov.

7

62

45

27

19

14

12

10

9.5

9

8.5

S

e

7.5

7.5

8.5

12

10

7

8

7

7.5

7

7.5

7.5

7.5

8

8

9.5

17

-

Dec.

14

17

8450

alOO

a70

a 55

a50

845

a 40

835

835

a30

28

30

38

55

40

38

35

36

32

31

34

24

27

31

SB

137

136

86

53

Jan.

41

b34

b37

b37

b37

36

40

57

50

46

45

45

44

44

44

42

40

39

3S

38

38

57

57

105

200

119

266

192

123

102

S6

Feb.

79

91

106

103

131

194

220

127

102

92

82

77

67

64

60

65

62

60

57

56

57

5S

52

56

52

56

54

52

_

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ....................................

February ...................................

 arch.. ....................................

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

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

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

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

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

September. .................................

Water year 1941-42 ......................

Mar.

53

56

56

56

60

63

62

65

6S

72

116

117

98

93

88

86

S9

94

91

84

81

82

S3

80

74

72

73

73

78

S2

93

Apr.

fSays

150.7

3S6.0

1,918

41, 933. S

2,179

2,332

2,43S

6,887

12,292

12,522

1,863

327.0

131.1

43, 225. S

92

105

124

270

231

188

153

153

163

18S

198

214

235

453

268

242

246

216

228

253

268

302

279

26S

290

275

281

264

226

214

-

204

314

434

560

716

to September 1942

 May

248

21

21

22

6

5

6

248

288

33

37

41

1

9

0

369

331

28

26

26

8

S

1

2S5

275

27

30

38

5

7

4

51S

594

63

61

62

S

2

0

711

716

51

51

43

39

1

1

6

3

429

Maximum

10

62

450

711

266

220

117

453

716

653

145

21

6

716

June

511

529

4S7

560

633

633

57S

526

563

573

563

526

505

500

4SO

427

410

595

364

321

300

292

277

259

231

204

180

173

168

156

-

Minimum

3.0

7

14

3.0

34

52

55

92

216

156

22

5.5

3.4

3.0

July

145

136

126

116

105

94

89

81

75

6S

63

60

55

53

50

4S

47

45

43

42

39

38

35

32

30

28

26

25

24

23

22

Aug.

21

2

1

1

)

}

3

17

15

1

1

1

5

t

5

12

12

1

1

1

2

1

D

10

9

3.5

3

9

7

7

7

3.5

6

6

5.5

5.5

5.5

5.5

Mean

4.S6

12.9

61.9

115

70.3

83.5

78.6

230

397

411

60.1

10.5

4.37

118

Sept.

5.5

5.5

5

5

5

4.9

4.8

4.7

4.7

5

5.5

6

5.5

4.S

4.5

4.1

3.9

3.8

4.2

4.0

3.8

3.6

3.5

3.4

5.4

3.4

5.4

3.4

3.4

3.4

-

Runoff in 

acre-feet

299

766

3,SOO

83, 180

4,320

4,630

4,S40

13,660

24,380

24,440

3,700

649

260

85,740

a No gage-height record) discharge computed on basis of records for South Pork of Tuolumne River. 

1> Stage-disellarge relation affected by Ice.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
TUOLWINE RIVER BASIN 22! 

Woods Creek near Jacksonville, Calif.

Location.- Water-stage recorder, lat. 37°51'. long. 120°24', in SWi sec. 12, T. 1 S., R. 

14 E., la miles upstream from mouth and It miles northwest of Jacksonville. Altitude 

of gage, about 645 feet (from topographic map).

Drainage area.- 98.4 square miles.

Records available.- October 1925 to September 1942.

Average discharge.- 17 years, 61.9 second-feet.

Extremes.- Ilaximum discharge during year, 2,120 second-feet Jan. 25 (gage height, 5.95 

feet); mininum, 0.4 second-foot Aug. 25, 26.

1925-42: Maximum discharge, 13,500 second-feet Feb. 9, 1938 (gage height, 10.5 

feet), from rating curve extended above 1,000 second-feet on basis of velocity-area 

studies; no flow at times during summers of 1929-36, 1939, and 1940.

Remarks.- Records fair. At times small amounts of water from Stanislaus River Basin are 

spilled into Woods Creek above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1.5

1.3

1.7

1.3

1.1

1.7

1.7

1.5

1.3

1.1

1,1

1.1

1.3

1.3

1.3

1.3

1,3

1.1

1.1

2.7

3.4

2.3

1.7

1.3

1.1

1.3

3.6

3.9

2.5

2.1

1.9

Nov.

2.7

19

20

14

11

9.5

9.5

8.5

8

8

8

8

8

8

8

11

14

11

10

10

9.5

9.5

9

9

9

9

9

9

13

20

~

Dec.

13

13

64

46

26

20

19

18

18

18

18

18

18

48

84

115

83

37

33

31

33

33

41

49

36

a45

a!50

256

734

866

513

Jan.

179

106

78

67

60

54

59

149

88

66

57

52

48

45

43

41

38

37

35

34

33

39

72

358

1,040

314

679

647

252

158

119

Feb.

98

182

203

318

583

902

552

268

183

145

120

106

92

83

77

73

69

65

62

59

71

143

90

78

74

67

63

59

-

-

~

Month

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

Calendar year 1941 ......................

September ..................... ............

Water year 1941-42 . . . ........... .....

Mar.

56

54

53

50

48

48

45

44

43

45

345

169

112

174

223

134

104

91

83

80

78

58

a 58

a56

a56

a52

a48

a44

a40

a36

a32

Apr.

a30

28

32

152

348

192

90

69

60

65

65

aSO

a50

727

183

145

474

190

144

120

104

94

83

74

71

69

76

155

134

92

~

Secondfoot-days

52.9

312.2

3,496

32,920.1

5,047

4,885

2,559

539

45.0

71.8

23,844.4

May

367

153

111

94

85

77

70

64

61

60

123

119

68

54

170

113

72

60

50

44

39

34

32

a 28

42

87

39

33

a30

a20

a!5

Maximum

3.9

20

866

2,210

1,040

902

345

727

26

2.2

3.7

1,040

June

a!5

a!5

a!4

a!4

al4

a!3

a!3

a!3

a!2

a!2

11

19

24

26

25

24

23

23

22

22

20

18

18

19

20

20

19

18

17

16

~

Minimum

1.1

2.7

13

1.1

33

59

32

11

1.4

.4

July

16

15

14

13

12

11

10

10

9.5

9.5

9

9

9

10

10

10

10

9.5

9

9

9.5

8

6

4.0

2.7

2.4

2.1

1.6

1.6

1.9

2.2

Aug.

2.2

2.2

2.1

1.9

1.6

1.9

1.8

1.8

1.6

1.6

1.9

2.1

2.2

2.1

1.5

1.4

1.1

1.0

.8

.9

1.1

.8

.5

.6

.4

.4

.6

1.4

1.8

1.8

1.9

Mean

1.71

10.4

113

90.2

163

174

82.5

18.0

2.39

65.3

Sept.

2.1

2.6

2.9

2.9

2.9

2.9

2.6

2.7

2.9

3.5

3.7

3.5

2.6

1.9

1.8

1.6

1.8

1.8

1.8

1.8

1.6

1.4

1.6

1.9

2.1

2.2

2.4

2.4

2.7

3.2

~

Runoff in 

acre- feet

105

619

6,930

65,270

10,010

9,690

5,080

1,070

89

142

47,290

Peak discharge.- Dec. 30 (11 a.m.) 1,420 sec. -ft.; Jan. 25 (4:30 a.m.) 2,120 sec. -ft.; Jan. 27

(2 p.m.) 1,350 sec.-ft.; Feb. 6 (12 m.) 1,690 sec.-ft.; Apr. 14 (6 a.m.) 2,000 sec.-ft.; Apr. 17 

(3 a.m.) 950 sec.-ft.

a No gage-height record; discharge computed on basis of range of stage and weather records.

Time baala; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter 

To convert war time to standard time, subtract 1 hour.
TUOLUMNE RIVER BASIN

Modesto Canal near La Grange, Calif.

Location.- Water-stage recorder, lat. 37°40'04", long. 120°27'26", in SWi ser. 17, T. 3 

 S~, R. 14 E., half a mile northeast of La Grange and about a nlle downstream from Intake at La Grange Dam on Tuolumne River. Datum of gage is ^72.4 feet above mean sea 

level (levels by Modesto Irrigation District).

Records available.- April 1903 to September 1942. 

Average discharge.- 39 years, 349 second-feet.

Extremes.- Maximum daily discharge during year, 1,520 second-feet June 20, 22, 25; minimum, 4 second-feet Nov. 17 to Dec. 11.

1903-42: Maximum daily discharge, 1,820 second-feet July 1, 1935; no flow at times.

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

Canal diverts water from right bank of Tuolumne River at La Grange Darn for irrigation 

in Modesto and Waterford irrigation districts.

Cooperation.- Gage-height record furnished by Modesto Irrigation District.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

522

522

522

524

516

534

536

53S

532

534

544

558

560

560

558

562

564

562

562

558

544

554

558

558

556

550

558

560

560

562

558

Nov.

556

546

540

621

603

577

562

556

508

426

189

8

8

6

6

6

4

4

4

*

Dec.

4

6

6

6

6

6

6

6

6

6

6

6

6

6

6

6

20

Jan.

8

8

8

8

8

8

8

8

8

8

8

8

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

25 10

8 1 10

15

15

10

10

Feb.

10

10

10

10

10

10

10

10

10

10

10

10

8

8

8

8

6

6

221

364

364

364

364

364

363

364

366

364

-

-

-

Month

October. ..... . . . ........................

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

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

Calendar year 1941 ................ .....

January ........ ........... ......... .

February. . . . . ........... ... .... ....

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

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

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

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

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

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

September. ... . ...

Water year 1641-42 .. .....

Mar.

364

363

361

361

363

368

372

374

370

368

370

367

366

364

366

366

205

6

6

38

92

92

93

93

92

92

91

236

442

447

447

Apr.

454

590

723

759

757

759

759

759

759

757

757

759

562

358

428

564

556

558

560

566

556

554

554

558

560

562

558

558

558

556

-

Secondfoot-days

16

5J774

217

175,876

286

3,662

8,335

18,318

24,936

36,871

31,919

21,246

21,170

189,720

May

556

556

554

554

554

680

778

783

778

774

771

776

771

771

783

783

778

776

778

788

909

969

966

966

972

972

964

969

969

969

969

Maximum

564

621

25

1,480

10

366

447

759

972

1,520

1,240

881

721

1,520

June

975

966

966

972

969

969

969

964

936

969

961

961

972

972

1,140

1,440

1,410

1,410

1,450

1,520

1,510

1,520

1,510

1,510

1,520

1,510

1,510

1,480

1,510

1,400

-

Minimum

516

4 

4

4

6

6

358

554

936

647

588

675

4

July

1,240

1,230

1,220

1,220

1,220

1,210

1,200

1,210

1,210

1,210

1,210

1,200

,210

,210

,200

,210

,210

,200

,210

,070

1,000

804

704

697

702

654

649

647

652

656

654

Aug.

649

645

652

605

601

601

599

601

601

605

601

601

594

599

599

590

588

588

839

881

865

857

839

831

803

803

733

718

716

721

721

Mean

548

7.0

4S2

13l'9.2

269

611

804

1 229

l|o30

C85

706

520

Sept.

716

711

711

711

711

709

709

714

716

718

716

721

714

714

714

718

718

716

714

716

702

675

685

685

685

685

667

690

687

702

Runoff in 

acre- feet

33,690

11,450

430

348,800

567

7, 260

16,530

36,330

49,460

73,130

63,310

42,140

41,990

376,300

' otp. - "lo <7age-hel~^t record N 

}d>-",to Irrigation district.

."tT.e basis: r aclfic standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time th 

i convert var time to standard time, subtract 1 hour.

12 to Feb. 18 and Mar. 18, 19; record of discharge furnished by

after.
TUOLUMNE RIVER BASIN 

Turlock Canal near La Grange, Calif.

237

Location.- Water-stage recorder and concrete control, lat. 37°40'00", long. 120°26'25", 

near north line of NWi sec. 21, T. 3 S., R. 14 E., 2,400 feet downstream from Intake 

at La Grange Dam and 1.2 miles east of La Grange. Altitude of gage, about 265 feet 

(from topographic map).

Records available.- October 1898 to September 1942. 

Average discharge.- 44 years, 484 second-feet.

Extremes.- Maximum daily discharge during year, 2,150 second-feet July 2-4; no flow 

Apr. 22-26.

1898-1942: Maximum daily discharge, that of July 2-4, 1942; no diversion for 

Irrigation In some periods of each year. Prior to 1939, unmeasured small discharge 

during winter called zero.

Remarks.- Records excellent. Canal diverts from left bank of Tuolumne River at La Grange 

Dam for Irrigation in Turlock Irrigation district and to supply town of La Grange. 

During fall and winter some unmeasured flow Is diverted from canal at tunnel 0.3 

mile above gage, passed through La Grange power plant and returned to river.

Cooperation.- Gage-height record furnished by Turlock Irrigation District.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

949

968

957

941

833

909

936

941

914

922

906

903

914

590

606

928

903

906

914

914

928

234

132

180

130

62

160

282

169

162

30

Nov.

26

23

21

21

21

20

19

18

17

16

20

20

20

18

18

18

IS

18

125

232

391

460

428

466

514

504

509

517

585

460

-

Dec.

552

601

563

544

117

2.0

2.0

2.2

2.4

2.2

2.0

2.2

2.0

2.4

2.6

2.6

2.6

2.8

2.6

2.6

2.6

2.8

2.8

2.8

3.0

3.5

3.5

3.5

4.0

4.5

5

Jan.

2.0

.8

.9

.9

.8

.S

.7

.6

.7

.9

.8

.8

.8

.7

.7

.7

8.5

16

21

25

54

76

74

73

74

76

76

7ff

74

73

73

Feb.

73

40

16

16

16

16

16

15

15

15

15

15

15

16

15

15

16

16

16

16

16

16

16

16

17

16

17

17

-

-

-

Mar.

258

506

509

504

506

514

671

763

771

771

771

768

771

402

102

185

276

307

307

360

417

425

420

417

417

536

738

868

963

1,010

1,070

Apr.

1,160

1,260

1,290

1,260

1,260

1,300

860

606

606

606

604

601

617

633

630

604

601

606

609

620

593

198

0

0

0

52

382

644

614

684

-

May

798

792

792

811

941

1,110

1,210

1,270

1,370

1,400

1,410

1,390

1,380

1,400

902

1,400

1,350

1,410

1,460

1,570

1,670

1,770

1,820

1,810

1,810

1,800

1,770

1,790

1,800

1,790

1,810

June

1,810

1,820

1,810

1,730

1,740

1,820

1,810

1,810

1,800

1,810

 1,280

1,430

1,800

1,800

1,800

1,800

1,800

1,800

1,810

1,800

1,760

1,810

1,850

1,900

1,900

1,900

1,870

1,810

1,810

1,820

-

July

2,010

2,150

2,150

2,150

2,130

2,120

1,890

2,010

2,010

2,020

1,950

1,900

1,910

1,910

1,860

1,780

1-,880

1,840

1,700

1,630

1,410

922

760

782

1,310

1,380

1,290

1,260

1,230

1,240

1,250

Aug.

1,370

1,380

1,300

1,320

1,340

1,340

1,330

1,420

1,420

1,370

1,340

1,360

1,090

1,060

1,440

1,470

1,420

1,410

1,190

868

868

1,300

1,310

900

803

817

876

960

1,440

1,430

1,090

Sept.

864

865

895

892

909

874

884

917

933

946

960

963

925

936

944

949

946

952

963

965

1,020

1,040

990

982

984

1,010

1,010

1,030

844

825

-

Month

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

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

September. .................................

Water year 1941-42 ......................

Secondfoot-days

20,223

5,483

2,450.2

43,806

53,510

51,834

38,032

28,217

281,765.3

Maximum

968

525

601

1,820

2,150

1,040

2,150

Uininum

30

16

2 JO

792

1,280

825

0

Mean

658

183

79.0

OO c

eep

941

772

Runoff in 

acre-feet

40,110

10.880

55,970

558,800

Time basis; Pacific standard tine prior to 2 a.m., Feb. 

To convert war time to standard time, subtract 1 hour.

1942; Pacific war time thereafter.
228 STANISLAUS RIVER BASIN

Middle Fork of Stanislaus River at Kennedy Meadows, Calif.

nap).

Drainage area.- 49.5 square miles. 

Records available,.- October 193S to September 1942.

Extremes.- Kaxinun discharge during year, 1,000 second-feet July 4 (gage height, 5.86

 feet); nlnlr.um. 15 second-feet Nov. 20.

1936-43: Maxirur. discharge, 1,050 cecond-feet June 20, 1941 (gage height, 5.98 

feet); nininura, 11 second-feet Jan. 5, 1939.

Remart-s.- Pecords good except those for periods of ice effect or no gage-height record, 

wh { cyL are f a i r . plow regulated by Relief Reservoir (capacity, 15,000 acre-feet); no

diversions.

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by Pacific

 Gas f- Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1941-42, except period of ice effect (gage height, 

in feet, and discharge, in second-feet)

l.B 

1.4

1.6

2.0 

2.3 

2.6 

2.9

42

59

81

111

3.2 

3.5 

3.8 

4.1

150 

19S 

251 

322

4.4 412

4.7 516

5.0 628

5.6 880

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

181

179

116

34

96

178

176

175

173

93

18

18

18

63

131

131

78

17

17

20

20

19

18

IS

18

17

19

18

18

17

17

Nov.

21

40

36

33

64

130

127

124

122

121

118

117

116

70

20

23

54

99

63

19

b!8

18

b!8

17

17

17

17

17

19

19

-

Dec.

18

131

308

97

67

52

46

42

38

37

33

31

29

30

33

33

32

30

30

b29

b27

b26

Jan.

\

I

> b25

1

'

> b24

b27

36

64

46

38

35

33

Feb.

b30

b28

b26

> b25

Mar.

25

26

27

29

33

34

35

39

40

40

40

40

38

38

37

35

35

36

34

34

34

35

I 35

,

b24

24

24

_

-

Month

October. ...................................

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

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

Calendar year 1941 ......................

January ... .... . . .......................

February ...... ............... ...........

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

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

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

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

July. .... . ......................'.....

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

September. . .... . ... ..............

Water year 1941-42 ....... ......... ....

35

35

32

33

89

a!85

a 190

a200

Apr.

a200

a200

a 200

a200

a200

a200

a200

a 200

206

208

212

224

235

237

228

222

213

210

217

229

242

266

257

247

247

244

238

226

217

208

-

Secondfoot-days

2,111

1,«94

1,437

56,860

860

742

1,598

6,633

6,944

19,071

13,242

3,500

3,400

61,282

May

203

198

200

203

215

238

216

159

168

143

122

104

95

92

90

86

91

107

140

208

272

314

272

259

453

530

406

353

333

330

344

Maximum

181

130

308

867

64

200

266

530

876

784

16S

168

876

June

380

409

390

498

692

876

827

688

775

867

796

784

737

775

840

758

617

560

680

605

590

640

692

640

586

340

380

473

548

628

-

Minimum

17

17

18

17

_

24

25

200

86

340

142

58

72

17

July

688

725

746

784

784

664

613

560

364

406

419

374

362

402

545

538

426

371

377

342

339

342

330

309

272

251

229

198

181

159

142

Aug.

131

117

112

113

130

127

118

112

110

113

110

126

135

115

109

103

91

82

75

68

62

61

59

58

87

152

168

167

164

165

160

Mean

68.1

56.5

46.4

156

27.7

26.5

51.5

221

224

636

427

113

115

168

Sept.

168

162

146

119

117

117

116

115

113

113

112

110

109

108

109

111

111

111

110

110

109

109

103

110

112

111

111

111

110

72

~

Runoff in 

acre-feet

4,190

3,360

2,850

112,800

1,710

1,470

3,170

13,160

13,770

37,830

26,270

6,940

6,840

121,600

a No gage-height record; discharge computed on basis of records for station at Sand Bar Flat near 

Avery.

t Stage-discharge relation affected by ice.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
STANISLAUS RIVER BASIN 239 

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

Location.- Water-stage recorder, lat. 38°11', long. 120°09', In sec. 19, T. 4 II., R. 17 

E., about a mile upstream from diversion dam of Pacific Gas & Electric Co. at Sand 

Bar Flat, and 11 miles southeast of Avery. Altitude of gage, about 2,650 feet (from 

topographic map).

Drainage area.- 318 square miles.

Records available.- September 1905 to September 1942.

Average discharge.- 36 years (1905-8, 1909-48), 695 second-feet.

Extremes.- Maximum discharge during year, 6,380 second-feet May 25 (gage height, 11.77 

feet); minimum, 98 second-feet (regulated) Oct. 31.

1905-48: Maximum discharge recorded, 26,500 second-feet Dec. 11, 1937 (gage height, 

21.0 feet, from floodmarks), from rating curve extended above 6,000 second-feet on 

basis of logarithmic plotting; minimum discharge, 30 second-feet Aug. 24, 1924.

Remarks.- Records good. Flow regulated by Relief Reservoir (capacity, 15,800 acre-feet). 

Water diverted by Philadelphia Canal (p. 236 ) from South Fork of Stanislaus River 

through Spring Gap powerhouse Into Middle Fprk above station.

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by Pacific 

Gas & Electric Co. In connection with a Federal Power Comnission project.

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

2.5 29 3.6 158 5.6 685 8.5 2,4OO 

2.7 48 3.S 190 6.0 840 9.0 2,840 

2.9 68 4.0 228 6.5 1,08O 9.5 3,330 

3.0 79 4.4 318 7.0 1,340 10. 0 3,870 

3.2 104 4.S 426 7.5 1,650 11. 0 5,160 

3.4 130 5.2 548 8.0 2,000

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

308 

299 

246 

165 

108

211 

294 

301 

304 

304

204 

140

137 

137 

185

252 

252

192 

137 

137

152 

154 

143 

140 

144

141 

147 

154 

141 

13S 

137

Nov.

147 

399 

339 

244 

238

270 

313 

304 

296 

289

282 

275 

270 

266 

209

166 

183 

190 

232 

201

148 

150 

145 

144 

147

145 

144 

144 

147 

160

Dec.

154 

336 

3,360 

828 

574

471 

406 

367 

339 

326

299 

280 

272 

277 

432

643 

462 

420 

412 

412

367 

344 

349 

304 

313

316 

308 

323 

336 

334 

316

Jan.

294 

277 

282

275 

270

280 

308 

456 

438 

412

426 

438 

435 

435 

420

406 

337 

381 

370 

360

360 

392 

398 

459 

858

1,160 

1,940 

1,330 

945 

SOS 

720

Feb.

674 

674 

671 

671 

728

812 

820 

702 

660 

622

587 

570 

554 

529 

5O7

510 

489 

489 

471 

462

465 

462 

429 

450 

423

432 

426

409

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

ffa

ber. ....... ................. .........

lendar year 1943 

ary

h. ........................... ........

ter year 1941-42 ...............

Mar.

415 

450 

453 

486 

567

640 

598 

685 

732

728

784 

804 

736 

678 

629

612 

622 

664 

629 

604

622 

643 

660 

646 

612

598 

608 

622 

816 

912 

1,O4O

Apr,

1,020 

1,220 

1,470 

2,000 

1,500

1,320 

1,3OO 

1,410 

1,560 

1,660

1,730 

1,900 

2,260 

2,440 

1,970

1,810 

1,640 

1,510 

1,650 

1,870

2,080 

2,420 

2,250 

1,980 

2,170

2,060 

2,020 

1,710 

1,520 

1,470

Secondfoot-days

5,904 

6,587 

14,680

309,030

16,720 

15,698 

20,295 

52,820 

76,840 

85,290 

36,093 

10,218 

7,846

348,991

May

1,430 

1,370 

1,440 

1,560 

1,640

1,920 

2,300 

2,510 

2,660 

2,320

2,100 

1,740 

1,640 

1,670 

1,760

1,650 

1,710 

1,940 

2,430 

3,340

4,030 

4,610 

4,170 

3,940 

4,770

3,880 

2,900 

2,680 

2,290 

2,140 

2,300

Maximum

308 

399 

3,360

4,240

1,940 

820 

1,040 

2,440 

4,770 

4,090 

2,240 

415 

344

4,770

June

2,620 

2,820 

2,600 

2,990 

3,630

4,090 

3,870 

3,350 

3,600 

3,840

3,670 

3,460 

3,250 

3,270 

3,410

3,110 

2,840 

2,700 

2,750 

2,430

2,310 

2,410 

2,540 

2,520 

2,240

1,870 

1,570 

1,730 

1,850 

1,950

Minimum

108 

144 

154

108

270 

409 

415 

1,020 

1,370 

1,570 

420 

232 

242

100

July

2,060 

2,100 

2,140 

2,200 

2,240

1,920 

1,690 

1,590 

1,320 

1,190

1,190 

1,080 

1,000 

1,020 

1,160

1,220 

1,060 

930 

930 

898

854 

840 

816 

768 

728

668 

60S 

532 

480 

441 

420

Aug.

415 

398 

381 

373 

390

387 

373 

360 

344 

341

341 

344 

392 

367 

341

328 

311 

292

275 

263

255 

246 

240 

234 

232

277 

347 

349 

334 

354 

334

Mean

190 

220 

474

847

539 

561 

655 

1,761 

2,479 

2,843 

1,164 

330 

262

256

Sept.

344 

336 

331 

296 

275

270 

266 

261 

261 

268

270 

259 

255 

248 

246

246 

248 

246 

246 

246

246 

244 

242 

242 

242

244 

242 

242 

242 

242

Runoff in 

acre-feet

11,710 

13,070 

29,120

612,900

33,160 

31,140 

40,250 

104,800 

152,400 

169,200 

71,590 

20,270 

15,560

692,300

ne basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tine thereafter. 

To convert war time to standard time, subtract 1 hour.
250 STANISLAUS RIVER BASIN 

Melones Reservoir at Melones Dam, Calif.

Location.- Staff gage and reference point, lat. 37°57'15", long. 120°30'45", near center

 of sec. 11, T. 1 II., R. IS E., at Melones Dam on Stanislaus River 0.1 mile downstream 

from Bear Creek. Datum of gage is mean sea level.

Drainage area.- C97 square miles.

Records available.- June 1927 to Septenber 1942.

Extremes.- Maximum contents observed during year, 112,600 acre-feet June 25 to July 12, 

July I"?, 18 (elevation. 735.0 feet); minimum observed, 7,170 acre-feet Nov. 21 

(elevation, 630.3 feet).

1927-42: Maximum contents, 114,600 acre-feet June 8, 1936 (elevation, 736.2 feet); 

minimum, 5,820 acre-feet Oct. 12, 1929 (elevation, 625.7 feet).

Remarks.- Reservoir is formed by concrete overflow dan; storage began Aug. 21, 1926; dam

 completed in December 1926. Capacity for power development 1 nile below dam is 

106,100 acre-feet between elevations 628.0 feet (minimum operating level) and 735.0 

feet (top of drum-type spillway gates) above mean sea level; usable capacity for 

Irrigation, 110,000 acre-feet between elevations 610.0 feet (floor of outlet tunnel) 

and 735.0 feet above mean sea level. Figures given herein represent total contents at 

7 a.m., of which 2,o30 acre-feet 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 the Pacific Gas & Electric Co. in connection 

with a Federal Power Commission project.

Contents, in acre-fast, water year October 1941 to September 1942

Day

1

2

3

4

5

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

gcCO

27

goCO

29

ouTO

31

Oct.

7,330

7,710

7,850

7,950

7,980

7,710

7,680

7,740

7,950

8,080

8,320

8,350

8,290

8,080

7,850

7,710

7,740

7,850

7,950

7,980

7,980

8,050

8,220

8,430

8,460

8,570

8,640

8,860

8,930

9,150

9,260

Nov.

9,490

9 , 680

9,B70

11,000

10,900

10,800

10,500

10,500

10,400

1O,200

10,000

9,790

9,600

9,450

9,220

8,930

8,610

8,120

7,880

7,680

7,170

7,330

7,420

7,360

7,400

7 , 520

7,780

7,980

8,150

8,190

-

Dec.

8,260

3,5OO

9,680

19,900

21,300

21,800

21,900

21,700

21,500

21,200

20,700

20,000

19,400

18,800

20,000

20,300

23,200

24,000

24,300

24 , 500

26,400

27,9OO

27,800

27,500

27,100

23,200

27,700

30,000

32,8OO

35,600

38,300

Jan.

39,000

30,900

38,700

38,100

37,900

37,400

36,900

36,600

36,200

37,700

38 , 000

39,200

39,600

39,800

40,000

40,000

40,OOO

39,60O

40,400

40,300

40.0OO

39,800

40,000

40,400

45,50f

53,600

64,100

81,200

89,400

93,500

93,500

Feb.

92,80')

91,000

88,100

36,300

83,500

82,700

83,600

83,000

81,200

77,7OO

73,600

69,400

64,700

60.4OO

55,600

51,500

48,200

45,800

44,800

44,600

44,600

47,500

48,100

47,300

46.OOO

46,000

46,700

47,700

_

.

-

Mar.

49,5Cio

51,000

51,500

51,000

50,400

49,800

49,800

50,60O

52,600

52,900

53,800

55,200

56,800

57,800

60,100

61,800

63,300

64,700

66,200

67,500

68 , 900

70,400

72,900

74,200

75,500

76,400

77,100

77,300

77,100

78 , 000

78,700

Apr.

79,300

79,800

81,100

85,100

90,700

93,300

93,600

93,600

93,600

94,000

94,300

94,100

94,800

96,200

96,200

95,800

96.OOO

95,500

95,300

95,700

95,700

96,300

96,500

96.OOO

96,000

96,000

96,000

95,800

95,300

95,000

~

May

95,200

95,000

95,OOO

95,300

95,200

95,300

96,000

96,500

96,800

96,800

96,300

96,000

95,500

95,300

95,300

95,800

95,500

96,000

96,200

97,300

93,401.

99,200

99,40O

98,500

98 , 700

100,100

99,200

98,400

97,700

97,000

97,500

June

98,400

98,400

98,700

98,500

99,400

100,700

100,900

10O,1OO

99,400

99,9OO

101,800

102,100

101,400

103,600

105,500

106,200

106,600

104,700

104,200

103,800

102,800

101,900

1O6,OOO

110,800

112,600

112,600

112,600

112,600

112,600

112,600

July

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112,600

112, 600

112,600

112,600

112,200

111,900

111,700

111,900

112,600

112,600

112,400

112,100

111,700

110,900

110,200

109,500

108,400

107,500

106,400

105,100

103,600

102,100

lioo.eoo

Aug.

98,900

97,200

95,500

93,600

92,000

90,400

88,800

87,400

85,900

84,200

82,700

81,100

79,500

78 , 000

76,500

74,800

73,100

71,400

69 , 700

67 , 900

66.0OO

64,400

62 , 600

60,800

59,300

57,500

55,800

54 , 400

52,800

51,400

49,900

Sept.

48,500

47,000

45,500

44,000

42,700

40,800

39,400

37,900

36,200

34,500

33,400

32,200

30,700

29,200

27,900

26,600

25,200

23,900

22,500

21,200

19,900

18,800

17,700

16,500

15,400

14,700

14,000

13,400

13,000

12,300

-

Monthly elevation and contents, water year October 1941 to September 1942

Date

Dec. 31. ................

Calendar year 1941....

Sept. 30. ................

Water year 1341-42. . . .

Elevation 

(feet)

629.6 

636.4 

633.4 

680.8

-

724.1 

69O.1 

714.5 

725.0 

726.5 

735.0 

728 . 3 

692.1 

643.7

-

Contents 

(acre-feet)

6,950 

9,200 

8,190 

33,300

-

93,500 

47,700 

78,700 

95,000 

97,500 

112,600 

1OO,600 

49,900 

12,300

-

Change in cont«nts 

during month 

(acre-feet)

+2,310 

-1,070 

+3O.11O

+2,£OO

+55,200 

-45,8OO 

+31,000 

+16,300 

+2,5OO 

+15,100 

-12,000 

-50,700 

-37,600

+5,350

T Into bn3_is_^ Pacific standard time prior to 2 a. 

Pacific war tirau thereafter. To convert war ti ie 

trnct 1 hour.

Feb. 9, 1912; 

standard time.
STANISLAUS RIVER BASIN 231 

Stanislaus River below Melones powerhouse, Calif.

Location.- Water-sta, e recorder, lat. 37°56'50", long. 120°31'45", near line between sees. 

10 and 15, T. 1 N., R. 13 E., 300 feet downstream from powerhouse, half a mile upstream 

from Bear Gulch, and 1 mile downstream from Melones Dan. Altitude of gage, about 500 

feet (from topographic nap).

Drainage area.- 808 square miles.

Records available.- January 1931 to September 1942.

Average discharge.- 11 years, 1,564 second-feet.

Extremes.- llaxlTium discharge during year, 12,300 second-feet May 23 (gage height, 13.15 

feet); niniraum, 3.0 second-feet (regulated) Feb. 22.

1931-42: Maximum discharge, 22,800 second-feet Mar. 31, 1940 (gage height, 17.6 

feet); minimum, about 1 second-foot Feb. 6, 1933, Dec. 9, 1937.

Remarks.- Records excellent. Flow regulated by Melones Reservoir (see preceding page), 

several smaller reservoirs, and diversions above station.

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by Pacific 

Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, ater year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

3.2 0 5.0 536 9.0 4,850

3.4 3 5.4 83

3.6 12 5.8 1,1E

3.8 32 6.2 1,54

.0 74 6.6 l,9e

.2 134 7.0 2.4C

.4 212 7.5 2,9r

.6 308 8.0 3,57

0 . 9.5 5,550

0 10.0 6,300

0 10.5 7,080

0 11.0 7,960

0 11.5 8,900

0 12.0 9,900

0 12.5 11,000

.8 418 8.5 4,190

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

33

Oct.

214

224

262

258

248

275

282

282

270

269

266

252

290

292

290

287

285

190

190

189

184

168

176

173

162

163

160

160

144

134

153

Nov.

156

141

156

398

412

418

238

188

200

282

398

430

429

424

294

300

237

230

406

396

251

202

192

132

188

126

134

197

389

203

-

Dec.

208

215

554

824

822

842

ei5

694

758

822

845

800

850

19

822

811

845

852

866

19

18

858

876

864

142

866

20

£1

891

899

908

Jan.

914

832

898

738

910

902

890

889

889

885

278

910

905

905

906

886

884

322

888

901

918

786

860

694

138

940

974

993

996

2,270

2,680

Feb.

2,620

3,230

3,640

3,930

4,220

4,220

4,220

3,740

4,180

4,120

4,090

4,020

3,960

3,850

3,470

3,380

2,600

2,070

1,340

1,310

E36

398

1,510

1.800

1,340

725

481

183

-

-

-

Month

October. ....... . . ........ .... ... ......

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

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

Calendar year J941 ........ ........

January ........ ............ .... . .

February . . ........... . ..... .....

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

April. . .... . ....... ......

May ..... ................. .

June . . . . ... . . .................. .

July. ... ... . . ...... .^. ...

August ....... . . .... ......

September. ... .... . . ........

Bater year 1941-42 . . . .... ....

Mar.

24

868

1,090

1,530

1,540

1,510

965

605

1,510

1,510

1,520

1,540

1,550

1,210

857

959

951

1,030

965

966

664

191

971

971

971

971

1,070

1,490

1,190

1,530

1,820

Apr.

1,890

1

£

£

,940

,030

,320

2,290

3,010

3

*

*

,310

,260

,450

3,770

4,120

4

4

6

5

,090

,820

,520

,120

4,440

4

Z

3

,520

,920

,520

4,350

4,360

5

5

4

4

,190

.400

,550

,640

4.370

4

4

;

3

Secondfoot-days

6,892

7,947

19,646

672,614

28,781

74,883

34,539

117,120

171,430

150,070

55,830

36,390

26,775

730,303

Time basis: Pacific standard time prior to 2 a.m., F

,780

,310

,580

,250

-

May

3,580

3,160

3,100

3,690

3,590

3,960

4,720

5,510

6,020

5,470

5,170

4,410

3,850

3,760

4,030

4,310

3,740

4,570

5,070

6,700

8, "70

10,000

9,960

8,560

9,940

9,960

6,810

5,850

5,000

4,190

C.980

Maximum

292

430

908

10,200

2,680

4,220

1,820

6,520

10,000

8,070

3,250

1,280

1,090

10.000

June

4,990

5,820

5,780

5,910

6,900

7,870

8,070

7,000

6,700

6,380

6,760

6,810

5,270

5,050

5,700

5,900

5.580

5,300

5,090

4,850

4,490

2,830

1,700

1,920

3,390

3,260

2,630

2,470

2,720

2,930

-

Minimum

134

126

18

18

138

183

24

1,890

3, 100

1,700

1,270

1,090

548

18

July

3,050

3,250

3,170

3,090

3,170

2,950

2,530

2,360

2,090

1,850

1,710

1,690

1,560

1,400

1,280

1,270

1,270

1,270

1,270

1,300

1,320

1,310

1,310

1,300

1,300

1,300

1,300

1,300

1,290

1,290

1,280

Aug.

1,

1,

1,

',

280

260

260

250

240

,200

'

',

t

<

,

,

.

t

r

,

1,

1,

1,

1,

1,

1,

Mean

222

265

634

1,843

928

2,674

1,114

3,904

5,530

5,002

1,801

1,174

892

2,001

180

180

180

180

180

180

190

190

190

190

190

180

180

180

170

170

160

130

110

100

100

100

100

100

090

Sept.

1,090

1,090

1,090

1,090

1,080

1,080

1,080

1,070

1,060

988

946 946'

946

938

930

930

922

930

930

922

850

818

810

802

657

555

555

548

555

567

-

Runoff in 

acre-feet

13,670

15,760

38,970

1,334,000

57,090

148,500

68,510

232,300

340,000

297,700

110,700

72, 180

53,110

1,448,000

3b. 9, 1942; Pacific war time thereafter.
232 STANISLAUS RIVER BASIN

Stanislaus River at Ripon, Calif.

Location.- Water-stage recorder, lat. 37°43'50", long. 121°06'35", In SEi sec. 29, T. 2 

S., R. 8 E., at highway bridge, about 1 mile southeast of Ripon and about 15 miles 

upstream from mouth. Datum of gage is at mean sea level.

Records available.- October 1940 to September 1942 in reports of Geological Survey.

April 1940 to September 1942 in reports of Division of Water Resources, Department of 

Public Works, State of California.

Extremes.- Maximum discharge during year, 9,940 second-feet May 27 (gage height, 56.65 

feet); minimum, 166 second-feet Aug. 11, 12 (gage height, 38.16 feet).

1940-42: Maximum discharge, that of May 27, 1942; minimum, that of Aug. 11, 12, 

1942.

Remarks.- Records good. Storage .and 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, and others.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet)

Oct. 1 to Jan. 31

38.0 150

40.0 592

42.0 1,070

44.0 1,600

46.0 2,170

48.0 2,790

38.0 137

39.0 330

41.0 773

43.0 1,260

Feb. 1 to Sept. 30

46.0 2,100

50.0 3,430

53.0 4,680

54.0 5,410

6,280

9,840

Discharge, in second-fset, water year October 1941to September 1942

Day

1

2

3

4

5

6

7

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.

245

223

232

229

216

229

232

225

218

221

229

218

238

243

269

291

302

271

245

249

254

265

256

258

273

265

276

280

291

280

273

Nov.

276

291

335

390

423

489

512

489

489

489

489

467

489

489

500

500

500

500

500

500

489

478

534

569

569

523

546

434

379

390

-

Dec.

401

412

423

512

848

945

995

995

920

945

995

995

1,020

995

707

753

1,020

1,040

1,020

1,020

707

434

638

970

1,020

661

848

730

707

1,380

1,820

Jan.

1,650

1,310

1,210

1,150

1,020

1,110

1,130

1,120

1,120

1,100

1,120

795

980

1,100

1,110

1,110

1,100

1,090

758

970

1,080

1,090

1,020

1,060

1,510

1,360

1,620

2,560

1,850

1,500

2,220

Feb.

2,710

2,730

3,200

3,690

3,970

4,520

5,000

5,100

4,630

4,500

4,500

4,430

4,380

4,300

4,210

3,940

3,740

3,040

2,500

1,900

1,770

1,220

950

1,650

2,000

1,740

1,270

1,080

-

_

-

Mar.

830

709

847

984

1,160

837

1,070

791

607

796

1,030

1,120

1,140

1,270

1,440

1,400

1,400

1,410

1,400

1,390

1,400

1,210

888

1,200

1,350

1,380

1,340

1,260

1,550

1,340

1,250

Apr.

1,230

1,130

1,040

1,080

1,640

1,750

2,240

2,580

2,660

2,760

3,050

3,580

3,900

4,340

5,210

5,900

5,140

4,990

4,670

4,170

4,380

4,550

4,800

5,270

4,990

4,610

4,410

4,430

4,280

3,620

-

May

3,160

3,470

3,400

3,360

3,680

3,680

3,750

4,020

4,200

4,460

4,540

4,410

4,200

3,730

3,440

3,520

3,730

3,380

3,600

3,790

4,360

5,690

7,870

8,620

7,870

8,060

9,500

6,920

5,440

4,650

3,900

June

3,420

3,860

4,410

4,620

4,620

5,000

5,860

6,500

6,000

5,510

5,270

5,160

5,360

4,750

4,090

4,26O

4,490

4,440

4,210

4,010

3,800

3,450

2,140

1,300

1,220

2,140

2,200

1,740

1,540

1,630

July

1,790

1,860

1,970

2,030

1,980

2,020

1,850

1,590

1,400

1,240

1,000

849

803

711

596

526

458

491

938

907

496

394

367

314

312

296

286

296

256

284

272

Aug.

250

246

237

218

216

231

206

218

233

2O8

174

193

a!99

a205

a210

216

239

220

206

206

212

216

223

233

218

208

222

216

218

222

204

Sept.

206

235

242

254

264

a262

a259

a257

a254

a252

a249

a247

a 244

a242

a239

237

256

256

286

274

266

256

237

222

222

256

237

237

239

225

-

Month

Calendar year 1941 . . .....

June ....... . . . ... ... 

July. ......... ...

September. .... ... . .

Water year 1941-42 . . ... ...

Secondfoot-days

7,796

14,028

26,876

610,406 

38,923

35,799

148,400

117,000 

28,582 

6,723

7,412

628,600

Maximum

302

569

1,820

8,690 

2,560

1,550

9,500

6,500 

2,030 

250

286

9,500

Minimum

276

401

196

758

607

1,220 

2&6

174

206

174

Mean

251

468

867

1,672 

1,256

3,167

1,155

3,613

4,787

3,900 

922 

217

247

1,722

Runoff in 

acre- feet

27,820

53,310

1,211,000 

77,200

71,010

294,300

232,100 

56,690 

13,330

14,700

1,247,000

a No gage-height record; discharge interpolate 

Time basis: Pacific standard time prior to 2 

To convert war time to standard time, subtract 1

i.-n., Feb. 9, 1942; Pacific wa 

hour.

time thereafter.
STANISLAUS RIVER HAS III 233

North Fork of Stanislaus River near Avery, Calif.

Location.- Water-stage recorder, lat. 38°14', long. 120°17', in sec. 35, T. 5 II., R. 15 

E., 700 feet upstream from intake of Utlca Mining Co.'s canal, 3i- miles upstream 

from Beaver Creek, and 5 miles northeast of Avery. Altitude of gage, about 3,400 

feet (from topographic map).

Drainage area.- 163 square miles.

Records available.- July 1914 to September 1922, November 1928 to September 1942.

Average discharge.- 21 years (1914-22, 1929-42), 423 second-feet.

Extremes.- Maximum discharge during year, 4,870 second-feet May 21 (ga^e height, 8.00 

feet); minimum, 32 second-feet Oct. 11, Sept. 17-19 (gage height, 0.95 foot).

1914-22, 1928-42: Maximum discharge, 17,700 second-feet Dec. 11, 1937 (cage heirht, 

14.1 feet, from floodmarks), from rating curve extended above 3,400 second-feet on 

basis of AV3~studies; minimum, 5.5 second-feet Dec. 6, 7, 1929.

Remarks.- Records good except those for Apr. 17-28, May 10-14, May 21 to June 5, which are 

fair. Flow regulated by three reservoirs above station and diversion from Beaver CreeK.

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

0.9 29 1.8 98 3.5

1.0 35 2.0 121 4.0

1.2 47 2.2 146 4.5

1.4 61 2.6 208 5.0

1.6 78 3.0 294 5.5

440 6.0 2,050

630 6.5 2,630

870 7.0 3,300

1,170 7.5 4,030

1,560

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

45

45

45

48

46

46

46

46

46

43

33

46

49

48

47

47

46

46

47

50

55

50

45

44

46

46

57

55

49

48

46

Nov.

51

115

101

73

63

59

57

55

55

54

54

54

54

54

53

62

66

58

49

47

47

48

46

48

59

58

58

58

64

87

-

Dec.

71

220

2,220

575

348

268

218

194

177

173

160

147

140

163

425

1,060

514

366

354

375

289

250

252

218

214

208

194

236

248

230

210

Jan.

184

180

179

174

171

173

200

414

363

326

331

337

337

326

299

280

257

248

240

234

234

259

280

431

947

1,450

2,560

1,320

860

692

580

Feb.

525

572

560

540

626

706

626

488

447

430

384

372

360

340

320

3? 7

304

310

294

287

294

297

263

275

255

259

255

246

-

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January ....................................

February. ..................................

March. ...... ..............................

April. .....................................

May. ........... ... .......................

June ...................... ................

July. ......................................

August .... ... ......... ..................

September. . ..... ..... ...................

Water year 1941-42 ... ..................

Mar.

248

294

299

326

418

488

418

533

580

576

639

592

492

430

396

366

375

427

387

354

378

414

430

402

363

345

363

375

460

540

692

Apr.

1

1

652

876

,440

,970

1,060

1

839

834

986

,180

1,300

1,320

1

1

2

,520

,940

,050

1,200

1,180

1

1

,040

876

,080

1,410

1,520

2

2

1

,030

,000

.430

1,800

1,680

1

1

Secondfoot-days

1,456

1,807

10,717

198,634

14,866

10,952

13,400

39,884

59,143

43,967

5,771

1,274

1,117

204,354

,690

,180

925

876

-

May

865

793

925

1,070

1,230

1,560

1,950

2,220

2,250

1,970

1,700

1,470

1,110

1,210

1,370

1,170

1,300

1,570

2,100

3,020

3,510

4,030

3,540

2,890

3,660

2,960

1,870

1,820

1,370

1,230

1,410

Maximum

57

115

2,220

4,420

2,560

706

692

2,050

4,030

2,670

496

50

40

4,030

June

1,870

2,200

1,920

2,250

2,670

2,550

2,200

1,920

2,070

2,130

2,020

1,880

1,730

1,700

1,700

1,450

3., 280

1,250

1,180

998

920

898

892

860

763

617

533

514

510

492

~

Minimum

33

46

71

33

171

246

248

652

793

492

46

34

33

33

July

496

488

464

430

411

345

304

277

236

208

188

170

152

140

138

136

126

114

108

101

91

86

79

78

71

67

61

57

53

50

46

Aug.

44

42

40

37

39

50

49

48

48

47

48

48

46

42

42

40

38

37

36

36

36

36

35

34

35

40

40

41

41

40

39

Sept.

39

39

39

39

38

36

37

37

37

39

40

37

36

36

35

34

34

33

33

35

40

40

39

39

38

38

37

37

37

37

~

UA»K Runoff in "ean acre-feet

47.0 2,890

60.2 3,580

346 21,260

544 394,000

480 29,490

391 21,720

432 26,580

1,329 79,110

1,908 117,300

1,466 87,210

186 11,450

41.1 2,530

37.2 2,220

560 405,300

Tine basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

To convert war time to standard .time, subtract 1 hour.

530350 O - 43 - 16

ar time thereafter.
234 STANISLAUS RIVER BASIN

South Fork of Stanislaus River at Strawberry, Calif.

Location.- Water-stage recorder, lat. 38°12', long. 120°01', In SWi sec. 16, T. 4 N., R. 

 16 E., a quarter of a mile upstream from highway bridge at Strawberry and half a mile 

downstream from Herring Creek. Altitude of gage, about 5,350 feet (from topographic 

map).

Drainage area.- 45.5 square miles.

Records available.- August 1938 to September 1942. October 1911 to January 1917 at site 

1 mile downstream.

Extremes.- Maximum discharge during year, 1,270 second-feet June 9 (gage height, 5.52 

feet); minimum, 3.3 second-feet Oct. 5.

1911-17, 1938-42: Maximum discharge observed, 1,450 second-feet June 8, 1915 (gage 

height, 5.4 feet, site and datum then In use); minimum discharge, 2.8 second-feet Sept. 

24, 1939.

Remarks.- Records good. Flow regulated by Strawberry Reservoir.

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by 

Pacific Gas & Electric Co. In connection with a Federal Power Commission project.

Rating table, water year 1941-42 (gage height, In feet, and discharge, 

In second-feet)

1.2

1.3

1.4

1.5

1.6

1.8

2.0

1.8

4.0

7

11

17

32

51

2.2

2.4

2.6

2.8

3.0

3.2

3.4

74

99

126

160

200

244

294

3.6

3.8

4.0

4.4

4.8

5.2

348

410

478

634

830

1,060

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

58

53

3.8

3.6

18

36

46

56

61

61

61

60

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

59

58

56

Nov.

62

73

15

44

61

59

58

56

55

55

55

55

55

55

55

55

55

54

54

54

54

54

54

54

55

55

54

55

53

49

-

Dec.

52

109

294

59

60

59

54

62

69

68

66

64

64

64

61

59

50

59

62

58

51

50

49

47

50

56

62

62

61

61

61

Jan.

61

61

61

61

61

61

62

62

62

62

62

62

62

62

62

62

62

62

61

62

62

62

62

64

72

81

106

102

94

85

SO

Feb.

76

76

76

75

76

78

76

74

72

69

69

69

69

69

69

69

68

68

68

68

68

68

67

66

64

64

63

63

-

-

~

Month

October. ............ ............ . ......

November .................................

December . .... ...........................

Calendar year 1941 .... . ........ ...

January. ... ... . .... ................. .

February, .... ......... .......... ......

March. . . . . . .... ...... . ..... ...

April . . ... .............

M?y

June. . . . . ..... ........... ...

July. ..... ......... ............

September. . ..... ... ......

Water year l r ><;i-4g . . . . . ... .....

Mar.

64

66

64

66

70

74

75

79

81

82

84

S2

80

7S

76

76

75

75

74

74

74

75

76

75

73

72

74

74

76

80

86

Apr.

87

100

122

142

113

104

102

10S

119

125

123

137

164

160

131

129

119

120

134

149

170

184

162

164

174

168

164

139

126

122

Secondfoot-days

1,634.4

1,622

2,103

55,515.2

2,103

1,957

2,330

4,061

12,425

21,084

5,611

1.S63

1,780

58,373.4

May

118

115

125

136

153

184

224

256

360

381

345

268

235

251

251

222

231

284

458

705

890

1,030

934

885

970

634

430

388

315

281

366

Maximum

61

73

294

964

106

78

86

184

1,030

1,000

564

62

62

1,030

June

544

621

56S

735

902

1,000

S85

800

874

994

946

731

830

874

846

745

730

760

745

695

634

580

675

666

489

366

3S8

447

489

525

-

Minimum

3.6

15

47

3.6

61

63

64

S7

115

366

13

34

58

3.6

July

564

552

518

47S

454

375

317

291

222

192

186

170

136

96

120

142

104

94

78

70

61

5S

56

55

55

56

42

16

15

13

25

Aug.

34

45

54

56

56

56

56

55

55

55

54

54

55

55

55

55

55

55

55

56

56

56

56

56

56

56

56

35

41

62

62

Mean

52.7

54.1

67.8

152

67. S

69.9

75.2

135

401

703

181

53.3

59.3

160

Sept.

62

62

61

60

58

58

58

59

60

60

60

60

60

60

60

60

59

59

59

59

59

59

59

59

59

59

58

58

58

58

-

Runoff in 

acre-feet

3.240

3,220

4,170

110,100

4,170

3,880

4,620

8,050

24,640

41,820

11,130

3,300

3,530

115,800

Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

time to standard time, subtract 1 hour.
STANISLAUS RIVER BASIN 335

South Fork of Stanislaus River near Long Barn, Calif.

Location.- Water-stage recorder and masonry control, lat. 38°05', long. 120°11', in sec.

25, T. 3 N., R. 16 E., 600 feet downstream from Lyons Dam, 2 miles west of Long Barn,

and 14 riles northeast of Sonora. Altitude of gage, about 4,100 feet (from topographic

map).

Drainage area.- 67.2 square miles. 

Records available.- November 1937 to September 1942. 

Extremes.- Maximum discharge during year, 1,280 second-feet (regulated) May 23 (gage

height, 5.50 feet); minimum, 0.5 second-foot on Oct. 1.

1937-42: Maximum discharge, 2,070 second-feet June 2, 1938 (gage height, 7.14 feet),

from rating curve extended above 1,400 second-feet; practically no flow at times during

1938-39. 

Remarks.- Records fair. Flow regulated by storage and diversions above station for power

and domestic use, including Lyons Reservoir (capacity, 5,500 acre-feet), Strawberry

Reservoir (capacity, 17,900 acre-feet). Tuolumne Canal (p. 237) diverts at Lyons Dam;

Philadelphia Canal (p.236) diverts about 12 miles upstream into basin of Middle Fork

of Stanislaus River. 

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by

pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table water year 1941-42 (gage height, In feet, and discharge, 

In second-feet)

0 0.2 1.2 5S 3.2 354 

.1 1.0 1.4 77 3.5 414 

.2 3 1.7 109 4.0 538 

.4 9 2.0 148 4.5 724 

.6 18 2.3 194 5.0 964 

.8 29 2.6 244 5.5 1,280 

1.0 43 2.9 298

Discharge, in second-feet, water year October 1941 to September 1942

Day

2 

3

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

26 

27 

28 

29

30 

31

Oct.

1.4 

1.6

1.6 

1.6

l.S 

1.6 

1.8

1.8 

1.6 

1.6 

1.4 

1.6

i.e

2.0 

2.0 

2.0 

1.4

1.4 

1.4 

1.6 

1.4 

1.4

1.4 

1.4 

1.4 

1.2 

1.4 

1.6

Nov.

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

Dec.

1.4 

1.6

1.4

1.4

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4 

1.2 

1.2

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

Jan.

1.4 

1.4

1.4 

1.4

1.6 

1.6

1.4

1.4 

1.4 

1.4 

1.4 

1.4

1.4

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.4 

55

239 

374 

293 

196 

140 

107

Feb.

S7 

106 

140 

145 

194

257 

260 

184 

140 

113

94 

78 

64 

52 

44

43

39 

37 

35 

31

30 

44

40 

32 

25

24 

23 

21

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

her. ........

mber. . . . 

mber

lendar year 1941 

ary

1 ... .... ...... ................. .

ember. . 

ter year 1941-42 . . ............

n-.e tn.«ls: "ac ! f

?o convert viar time

Mar.

19 

20 

22 

22 

25

32 

33 

35 

41 

46

91 

100 

97 

86 

78

77 

83 

77 

71 

63

59 

58 

57 

54 

49

44

43 

42 

42 

56

69

Apr.

72 

81 

109 

248 

244

204 

172 

156 

162 

178

175 

163 

178 

298 

220

192 

194 

175 

174 

176

176 

207 

184 

152 

169

156 

170 

156 

130 

130

Secondfoot-days

48.2 

42.0 

43.2

45,343.2

1,438.0 

2,382 

1,691 

5,195 

12,815 

20,027 

4,503.1 

42.5 

43.4

4S.270.4

Hay

145 

130 

122 

129 

134

150 

181 

224 

276 

366

374 

311 

262 

264 

298

275 

251 

275 

398 

634

887 

1,060 

1,050 

922 

1,070

805 

472 

406 

334 

2S7 

323

Maximum

2.0

1.4 

1.6

1,020

374 

260 

100 

298

1,070 

1,040 

SOS 

1.6 

l.S

1.070

June

458 

604 

567 

746 

954

1,030 

986 

819 

843 

1,040

975 

795 

716 

805 

912

782 

720 

755 

737 

619

567 

517 

538 

597 

495

246 

12S 

215 

447 

414

Minimum

1.0 

1.4 

1.2

.6

1.4 

21 

19 

72 

122 

123 

1.2 

.9 

1.2

.9

July

465 

508 

458 

400 

402

344 

305 

294 

255 

136

178 

169 

102 

56 

72

125 

131 

46 

25 

11

4.5 

5

1.2

1.8 

1.4

1.2

1.2 

1.2 

1.2 

1.2 

1.2

Aug.

1.2

1.0 

1.0 

1.2 

1.4

1.4 

1.4 

1.2 

1.0 

.9

1.0 

1.2 

1.4 

1.6 

1.6

1.6 

1.6

1.6 

1.6 

1.6

1.6

1.6 

1.6

1. 

1.

1. 

1. 

1. 

1. 

1. 

1.

Sept.

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

1.2 

1.4 

1.4 

1.4 

1.4

1.4 

1.4 

1.4 

1.6

1.8

1.8 

1.8 

1.6 

1.4 

1.4

Mann Runoff in Mean acre-feet

1.55 96 

1 . 40 83 

1.39 86

124 89,930

46.4 2,650 

85.1 4,720 

54.5 3,350 

173 10,300 

413 25,420 

668 39,720 

145 8,930 

1.37 84 

1.45 86

132 95,730

io standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

to standard time, subtract 1 hour.
236 STANISLAUS RIVER BASIN 

Philadelphia Canal near Strawberry, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°11', long. 120°03', in 

sec. 30, T. 4 N., R. 18 E., about 250 feet downstream fron diversion dam on South 

Fork of Stanislaus River and 3 miles southwest of Strawberry post office. Altitude 

of eage, about 4,800 feet (from topographic map).

Reccrds available.- October 1939 to September 1942.

Extremes.- Maximum daily discharge during year, 64 second-feet Dec. 11; no flow June 4-19, 

 July S-ll; 15, 16, and 28-30.

1939-42: Maximum daily discharge, that of Dec. 11, 1941; no flow at times in each 

year.

Remarks.- Records good. Canal diverts water from right bank of South Fork of Stanislaus 

River for power development in Spring Gap power plant of Pacific Gas & Electric Co.; 

tailrace empties into Middle Fork of Stanislaus River above station at Sand Bar Flat.

Cooperation.- Water-stage recorder record furnished by Pacific Gas & Electric Co. In 

connection N with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

57

46

2.3

2.3

13

34

45

53

57

57

56

56

56

56

56

56

56

56

56

56

56

56

56

56

56

56

56

56

56

55

55

Nov.

55

54

23

31

57

57

56

56

55

55

55

55

54

54

54

55

55

54

54

53

53

52

52

53

54

54

54

54

54

50

-

Dec.

51

54

46

45

54

54

53

54

55

60

64

50

54

51

48

48

52

56

52

49

50

49

47

47

49

51

53

49

49

49

49

Jan.

49

49

49

49

48

52

55

55

55

55

55

55

55

55

55

54

54

54

54

55

56

56

49

42

42

42

42

43

45

49

54

Feb.

54

54

47

46

46

46

50

53

53

53

54

54

54

55

55

55

55

55

55

55

51

45

50

55

55

55

55

- 55

-

_

-

Month

October ....................................

November . ..................................

December ...................................

Calendar year 1941 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May ........................................

June . .......... ..........................

July. ......................................

August .....................................

September. ............ ...................

Water year 1941-42 . . ..................

Mar.

55

55

55

55

56

56

56

56

55

56

55

55

55

49

43

43

50

55

55

55

55

55

55

55

55

55

55

55

55

56

57

Apr.

57

58

54

50

49

49

53

57

57

58

58

57

57

49

52

55

54

54

55

55

56

55

54

54

56

56

56

53

50

50

-

Secondfoot-days

1,540.6

1,572

1,592

14,823.5

1,582

1,470

1,679

1,628

1,656

647

915.9

1,632

1,685

17,599.5

May

50

53

56

56

56

56

55

50

52

54

54

54

53

54

54

53

54

54

54

54

54

60

49

55

51

46

51

a51

a54

a54

a55

Maximum

57

57

64

64

56

55

57

58

60

56

57

57

57

64

June

a56

a55

a30

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

11

21

38

50

54

53

55

56

56

56

56

-

Minimum

2.3

23

45

0

42

45

43

49

46

0

0

30

55

0

July

57

55

54

55

53

39

6.5

2.4

0

0

0

14

39

27

0

0

16

34

44

52

54

55

54

54

53

54

33

0

0

0

all

Aug.

a30

40

45

52

55

55

55

54

54

54

54

54

54

54

55

54

54

54

55

55

55

55

55

55

55

56

55

55

41

57

56

Mean

49.7

52.4

51.4

40.6

51.0

52.5

54.2

54.3

53.4

21.6

29.5

52.6

56.2

48.2

Sept.

56

56

56

55

55

55

55

55

55

55

55

56

56

56

56

56

56

57

57

57

57

57

57

57

57

57

57

57

57

57

~

Runoff in 

acre-feet

3,060

3,120

3,160

29,420

3,140

2,920

3,330

3,230

3,280

1,280

1,820

3,240

3,340

34,920

a No gage-height record; record of daily discharge furnished by Pacific Gas & Electric Co., based 

on output at Spring Gap powerhouse.

Tine basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
STANISLAUS RIVER BASIN 237

Tuolumne Canal near Long Barn, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°05', long. 120°11', in sec. 

25, T. 3 N., R. 16 E., 200 feet downstream from intake, 250 feet downstream from Lyons 

Reservoir on South Fork of Stanislaus River, 2. miles wost of Long Barn, and 14 miles 

northeast of Sonora. Altitude of gage, about 4,100 feet (from topographic map).

Records available.- October 1937 to Septenber 1942.

Extremes.- Maximum daily discharge curing year, 52 second-feet June 14-24; no flow parts 

of May 11 and 12.

1937-42: Maximum daily discharge, 54 second-feet June 26, 27, July 1, 193S; no 

flow at times.

Remarks.- Records good. Cinal diverts water from left bank of South Fork of Stanislaus 

River for power and domestic supply in vicinity of Sonora.

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by 

Pacific Gas & Electric Co. In connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13

14 

15

16 

17 

18 

19 

20

21 

23 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

22 

22 

22 

22 

22

22 

22 

20 

18 

16

15 

15 

15 

15 

15

11 

9.E 

9.£ 

10 

15

15 

15 

15 

14 

15

15 

26 

20 

20 

20 

19

Nov.

15

15 

15 

15 

12

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

Dec.

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

11

11 

11 

11 

11 

13

15 

15 

15 

15 

15

15 

15 

15 

15 

16 

20

Jan.

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20 

20

Feb.

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20

Month

Octo 

Nove 

Dace

Ca

Janu 

Febr 

Ma'rc 

Apri

MAV

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1941 

ary

uarv S y :. ::::::::::::::::::::::.:::::::::.

ter year 1941-42 ..............

Time basis

To convert v»

Mar.

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

23 

25

25 

25 

25 

25 

25

25 

25 

25 

25 

25

25 

25 

25 

25 

12 

5

Apr.

5 

5 

5 

5 

5

5 

4.9 

5 

5 

5

4.9 

11 

21 

25 

25

25 

25 

25 

25 

25

25 

25 

25 

25 

25

25 

25 

25 

25 

25

May

25 

25 

2fi 

25 

25

25 

25 

25 

25 

25

5 

3.4 

5 

5 

5

5 

5 

5 

5 

5

5 

5 

5 

5 

5

4.9 

5 

5 

5 

5 

5

Second- u.iri«i,m foot-days "««»»

532.0 26 

347 15 

393 20

7,222.8 52

620 20 

560 20 

675 25 

511.8 25 

353.3 25 

1,037 52 

794 32 

620 20 

641 22

7,134.1 52

June

10 

22 

25 

83 

25

25 

25 

25 

25 

25

25 

38 

50 

52 

52

52 

52 

52 

52 

52

52 

52 

52 

52 

35

27 

27 

27 

27 

27

Minimum

9..

11 

11

0

20 

20 

5

4.E 

3.4 

10 

18 

20 

20

3.4

July

27 

27 

28 

27 

27

27 

27 

27 

28 

29

30 

30 

32 

30 

30

30 

30 

30 

30 

28

23 

18 

19 

20 

20

20 

20 

20 

20 

20 

20

Aug.

20 

20 

20 

20 

20

20 

20 

20 

20

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20

20 

20 

20 

20 

20 

20

Mean

> 17.2 

11.6 

12.7

19.8

20.0 

20.0 

21.8 

17.1 

11.4 

36.2 

25.6 

20 . 0 

21.4

19.5

: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific wnr tins there 

ar ti.r.e to standard time, subtract 1 hour.

Sept.

20 

20 

20 

20 

20

20 

20 

20 

20 

21

22 

22 

22 

22 

22

22 

22 

22 

22 

22

22 

22 

22 

22 

22

22 

22 

22 

22 

22

Runoff in 

acre-feet

1,060 

6f"J

11,340

1,230 

1,110 

1,340 

1,020 

701 

2,160 

1,570 

1 , 230 

1,270

14,160

after.
236 STANISLAUS RIVER BASIN

South San Joaquln canal near Knights Ferry, Calif.

Location,.- Water-stage recorder, lat. 37°51'20", long. 120°3B'15", in sec. 15, T. 1 S., 

R. 12 E., three-quarters of a mile downstream from head gate at Goodwin Dam on 

Stanislaus River and 4 miles upstream from Knights Ferry. Altitude of gage, 345 

feet (from topographic map).

Records available.- May 1914 to September 1942.

Average discharge.- 23 years (1914-30, 1931-32, 1936-42), 358 second-feet.

Extremes.- Maximum daily discharge during year, 994 second-feet July 4, 5; no flow at 

various tines.

1914-42: Maxlnum daily discharge, 1,070 second-feet July 1-3, 1921; no flow at 

times each year.

Remarks.- Records good except those for low-water periods December to March, which are 

 fair. Canal diverts from right bank of Stanislaus River at (Joodwln Dam for irrigation 

In Oakdale and South San Joao.uin irrigation districts.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

120 

125 

156 

158 

142

144 

161 

152 

149 

144

146 

135 

143 

162 

161

160 

160 

124 

75 

109

98 

78 

78 

74 

90

79 

80 

126 

124 

116 

106

Nov.

106 

106 

106 

130 

237

286 

289 

287 

285 

277

286 

287 

236 

286 

205

286 

285 

286 

284 

282

113 

0 

0 

0 

0

3.8 

11 

11 

11

1)

Dec.

11 

11 

11 

7 

0

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0

1.1

2.6 

2.6 

2.6

2.4 

1.4

0 

0 

0

0 

0 

0 

0 

0 

0

Jan.

0

0 

0 

0 

0

0 

0 

0 

0 

0

0 

0 

0 

1.3 

4.5

4.5 

4.2 

4.2 

1.5 

0

0 

0 

0 

0 

0

0

0 

0 

0 

0 

0

Feb.

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

June 

July 

Augu 

Sept

Wa

lendar year 194 

ary

1 ........ . .........

st. ....:... . . ....... ..... .

embe r . . . . . . .... . . . . ... 

ter year 1941-42 ... ..... .....

Time basis

To convert w

Mar.

0 

143 

364 

584 

699

' 683 

679 

637 

662 

688

697 

609 

452 

118 

0

0

0 

0 

1.5 

1.6

1.6 

1.6 

1.6 

1.4 

1.4

12 

44 

52 

52 

299 

539

Apr.

727 

898 

900 

917 

807

815 

814 

787 

781 

744

346 

55 

35 

27 

24

24 

26 

26 

26 

26

26 

26 

26 

127 

229

296 

475 

665 

724 

720

Secondfoot-days

3,875 

5,122.6 

52.7

156,063.3

2C.2 

0 

8,023.7 

12,119 

20,870 

29,113 

27,730 

25,025 

18,390

150,3-19.4

Hay

625 

266 

49 

68 

131

157 

392 

872 

960 

956

832 

590 

504 

525 

538

533 

536 

682 

900 

972

971 

970 

970 

970 

854

760 

836 

875 

865 

860 

854

Maximum

162 

289 

11

1,020

4.5 

0 

699

917 

972 

992 

994 

890 

743

994

June

870 

930 

950 

952 

960

980 

974 

972 

974 

970

964 

966 

965 

982 

983

980 

982 

977 

976 

977

983 

976 

982 

984 

978

976 

980 

992 

990 

988

Minimum

74 

0 

0

0

0 

0 

0 

24 

49 

870 

48 

742 

369

0

July

989 

990 

989 

994 

994

992 

988 

989 

989 

986

990 

992 

990 

980 

920

882 

772 

48 

355 

916

935 

928 

922 

911 

908

902 

900 

899 

896 

892 

892

Aug.

890 

882 

878 

870 

865

837 

814 

812 

811 

811

812 

814 

812 

812 

818

816 

814 

812 

808 

807

802 

802 

804 

772 

766

753 

748 

749 

746 

746 

742

Mean

125 

171 

1.70

428

.65 

0 

259 

404 

673 

970 

895 

807 

613

412

Sept.

744 

748 

748 

745 

744

741 

738 

738 

737 

688

657 

655 

650 

644 

643

63P 

637 

636 

636 

636

592 

556 

552 

548 

465

383 

374 

369 

370 

377

Runoff in 

acre- feet

7,690 

10,160 

105

309,600

40 

0 

15,910 

24,040 

41,410 

57,740 

55,000 

49 , 640 

36,480

298,200

: Pacific standard ti-ne prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

ir time to standard tine, subtract 1 hour.
STANISLAUS RIVER BASIN 239

Oakdale Canal near Knights Ferry, Calif.

Location.- Water-stage recorder, lat. 37°51'30", long. 120°38'00", in SEi sec. 10, T. 1 

S., R. 12 E., half a mile downstream from head gate at Goodwin Dam on Stanislaus River 

and 4 miles upstream from Knights Ferry. Altitude of gage, about 350 feet (from 

topographic map).

Records available.- May 1914 to Septenber 1942.

Average discharge.- 24 years (1914-32, 1936-42), 104 second-feet.

Extremes.- Maximum daily discharge during year, 388 second-feet July 2; no flow Oct. 20 

to Mar. 24, Apr. 4-11, 14-19.

1914-42: Maximum daily discharge, 402 second-feet July 30, 1938; no flow during 

periods in each year.

Remarks.- Records good. Canal diverts water from left bank of Stanislaus River at Goodwin Dam for irrigation in Oakdale irrigation district.

Cooperation.- Gage-height record furnished by Oakdale Irrigation District.

Discharge, in second feet, water year-October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

64

70

66

68

67

72

84

64

86

86

86

82

82

88

88

84

66

76

67

61

66

61

61

63

62

61

61

23

0

0

0

Nov. Dec. Jan. Feb. Mar.

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Month

October. ....... ........................

November. ..................................

December ........ ........................

Calendar year 1941 ......................

January ...... ........................... .

February ........................ ..........

March. . . .................................

April. ........ ................ ..........

May. .......... ..... ............ ......

June . .......... . . .......... ............

July. ..................................

August .... ........... . ..... ........

September. . . ...... ...... .............

Water year 1941-42 . .... .......... ....

0

0

0

0

0

27

54

119

153

149

214

269

Apr.

285

323

280

0

0

0

0

0

0

0

0

16

44

0

0

0

0

0

0

26

52

101

158

226

276

309

329

226

151

209

-

May

78

54

61

95

105

256

316

335

345

344

293

328

328

328

313

304

303

334

348

365

370

372

367

366

366

365

365

367

367

367

357

forays «*«

2,027 86

0 0

0 0

57,640.5 378

0 0

0 0

985 269

3,013 329

9,264 372

11,446 387

11,910 386

11,212 383

8,706 341

58.583 366

June

357

364

375

384

387

364

3^9

380

362

365

362

382

384

386

386

385

384

361

365

386

363

360

382

382

382

381

381

364

367

366

-

Minimum

0

0

0

0

0

0

0

0

54

357

360

346

194

0

July

367

386

365

384

382

364

361

364

365

384

385

366

386

385

382

364

363

380

381

383

382

363

364

384

385

386

387

386

365

365

384

Aug.

Mean

65.4

0

0

158

0

0

31.8

100

299

382

384

362

290

161

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time ther

383

363

3S3

381

379

369

364

364

364

365

366

365

364

?64

359

362

361

360

356

361

360

357

356

353

349

346

348

346

348

348

346

Sept.

341

337

335

335

335

337

335

335

335

320

305

305

306

307

306

305

306

306

306

305

284

272

270

270

228

194

194

196

196

200

-

Runoff in 

acre- feet

4,020

0

0

114,700

0

0

1,950

5,980

16,410

22,700

23,620

22,240

17,270

116,200

eafter.
340 CALAVERAS RIVER BASIN

Calaveras River at Jenny Lind, Calif.

Location.- Water-stage recorder, lat. 38°05', long. 120°52', in SWi sec. 22, T. 3 N., R. 

10 E., at bridge on Milton road, a quarter of a raile south of Jenny Lind and 6£ miles 

downstream from Cosgrove Creek. Altitude of gage, about 220 feet (from topographic 

map).

Drainage area.- 305 square miles.

Records available.- January 1907 to September 1942.

Average discharge.- 33 years (1908-23, 1924-42), 261 second-feet.

Extremes.- Maximum discharge during year, 7,820 second-feet Jan. 27 (gage height, 10.97 

feet); no flow part of Oct. 4.

1907-42: Maximum discharge observed, about 69,600 second-feet Jan. 31, 1911 (stage 

was reported higher about midnight); no flow during late summer of periods 1913-15, 

1917-22, 1924-41.

Remarks.- Records fair. Flow regulated by Hogan Reservoir at Stockton flood-control dam, 

 by snail reservoir on North Fork of Calaveras River, by diversion from North Fork into

Mokelumne River Basin, and by diversion fron North Fork of Stanislaus River into

Calaveras River above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.4

.2

.1

.1

1.1

1.3

1.1

1.1

.9

.9

.9

.8

.7

.6

.6

1.8

4.5

4.0

3.2

2.4

2.8

7

8

6.5

8

10

12

10

11

9.5

9

Nov.

6.5

12

14

17

25

25

22

17

15

15

16

15

15

15

15

15

18

22

22

24

25

25

24

23

23

23

22

22

30

35

-

Dec.

35

35

41

70

91

80

70

60

52

45

40

36

35

35

60

85

116

177

156

138

123

108

103

92

96

97

98

514

1,300

1,870

1,700

Jan.

784

382

245

194

167

149

138

149

248

212

172

151

140

138

135

129

126

122

115

109

99

89

95

1,040

3,490

4,320

6,280

6,040

4,260

3,070

1,760

Feb.

728

695

1,050

1,010

1,790

2,300

2,520

1,980

1,210

872

680

560

475

414

364

324

291

274

253

241

232

288

313

270

274

264

244

220

-

-

-

Month

October. .......... ........................

November. ................ ............. ...

December. ..................... ........ ...

Calendar year 1941 ......................

January. ............................. .

February. ...... ...... .............. . . .

March. .............. ...... ......... . . .

April. ................. ............. . .

May. ....... ... . . ... ....... .... . .

June ....... .......... ...... ........ . . juiy.. ............ .... ...........:... ...

August. .... ..... .... . .... ... .... ...

September. .... ... .... . . ... ............

Water year 1941-42 . . . ...... .....

Mar.

212

198

192

187

178

168

163

158

154

154

428

625

445

418

1,050

860

f570

500

440

380

330

280

235

220

210

205

197

188

180

172

164

Apr.

160

153

160

f820

628

604

457

3bO

f313

297

297

277

250

869

1,100

692

946

924

692

546

455

402

f362

318

294

274

257

316

449

f400

-

Secondfoot-days

120.5

597.5

7,558

100,133.3

34,548

20,136

9,861

14,062

9,964

3,091

907

174.2

71.3

101,090.5

May

790

820

530

410

360

360

298

272

225

214

260

440

410

372

285

285

335

310

285

260

225

214

214

182

172

335

285

236

196

192

192

Maximum

12

35

1,870

3,760

6,280

2,520

1,050

1,100

820

182

54

12

4.2

6,280

June

182

172

172

152

152

134

134

126

126

118

103

103

103

96

96

90

90

90

90

84

81

78

75

72

69

66

63

60

58

56

-

Minimum

0.1

6.5

35

0

89

220

154

153

172

56

12

.4

.7

.1

July

54

52

50

48

46

44

42

40

35

33

32

30

28

28

27

26

26

25

25

24

23

23

23

22

19

16

14

14

14

12

12

Aug.

11

11

12

10

10

10

9

8

7

6

7

7.5

8

7

7.5

7.5

7

7

5.5

5.5

3.6

2.0

1.0

.7

.6

.4

.4

.4

.5

.5

.6

Mean

3.89

19.9

244

274

1,114

719

318

469

321

103

29.3

5.62

2.38

277

Sept.

0.7

.9

1.0

.9

.9

1.2

1.2

1.0

1.7

2.8

2.8

3.2

3.2

3.2

3.4

3.6

3.8

3.8

4.0

4.2

3.2

3.0

2.4

2.0

2.2

2.2

2.2

2.4

2.0

2.2

-

Runoff in 

acre- feet

239

1,190

14,990

198,600

68,520

39,940

19,560

27,890

19,760

6,130

1,800

346

141

200,500

Peak discharge.- Dec. 29 (12:30 a.m.) 1,390 sec.-ft.; Dec. 30 (6 p.m.) 2,210 sec.-ft.; Jan. 26 

(3 p.m.) 6,650 sec.-ft.; Jan. 27 (9 a.m.) 7,820 sec.-ft.; Feb. 7 (8 a.m.) 2,670 sec.-ft.; Apr. 14 

(10 p.m.) 1,390 sec.-ft.

f Discharge computed on basis of partly estimated gage-height record.

Note.- Discharge for periods of shifting channel conditions, Nov. 14 to Dec. 15, Mar. 18-22, 

computed on basis of seven discharge measurements and precipitation records; for May 1 to June 20, 

computed on basis of unpublished records for station just below Hogan Reservoir; for June 21 to 

July 6, interpolated.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
CALAVERAS RIVER BASIN 241

Cosgrove CreeK near Valley Springs, Calif.

Location.- Water-stage recorder, lat. 38°09', long. 120°50', In SEi sec. 35, T. 4 N., 

R. 10 E., 0.4 mile upstream from mouth and 2.5 miles south of Valley Springs. 

Altitude of gage, about 580 feet (from topographic map).

Drainage area.- E0.6 square miles.

Records available.- October 1929 to September 1942.

Average discharge.- 13 years, 8.04 second-feet.

Extremes.- Maximum discharge during year, 2,010 second-feet Jan. 27 (gage height, 7.04 

feet), from rating curve extended above 780 second-feet on basis of velocity-area 

studies; no flow for several months.

1929-42: Maximum discharge, 2,600 second-feet Feb. 22, 1936 (gage height, 7.80 

feet), from rating curve extended above 780 second-feet on basis of velocity-area 

studies; no flow for several months each year.

Remarks.- Records excellent. No diversions.

1.9 o

2.0 .1

2.1 .5

2.2 1.4

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet)

Oct. 1 to Jan. 27

2.3 3.0

2.4 5.8

2.5 9.8

2.6 15

2.8 31

3.0 55

3.3 103

3.6 165

3.9 242

4.2 338

4.5 465

4.9 655

Jan. 28 to Sept. 30

1.9

2.0

2.1

2.2 1.9

.2

3.8 

6.6

2.8 

3.0

2.6 17

Note.- Same as preceding table above 

.0 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. 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

.2

12

11

126

48

Jan.

12

6

4.2

3.2

2.8

2.4

2.4

10

5

3.4

3.0

2.6

2.4

2.3

2.1

1.9

1.8

1.6

1.5

1.4

1.4

1.4

9

299

218

486

621

164

40

25

17

Feb.

13

65

53

98

96

108

86

33

20

15

12

9.6

7.5

6

5

4.8

4.5

4.3

3.8

3.6

4.5

8

4.3

4.5

6.5

4.3

3.8

3.4

-

-

-

Month

October. ................................

Nove 

Dece

mber ...................................

mh«r

Calendar year 1941 ......................

January. ...................................

February. ..................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August ................. ..................

September. ..... ..... .................. .

Water year 1941-42 .... .................

Mar.

3.0

2.8

2.8

2.6

2.4

2.4

2.1

2.1

1.9

2.3

33

9

5.5

8

18

6

4.3

3.6

3.2

2.8

2.6

2.4

2.3

2.3

2.1

1.9

1.8

1.6

1.6

1.5

1.5

Apr.

1.5

1.5

25

67

9.5

8.5

4.8

3.6

3.2

3.4

3.4

2.6

2.6

40

9

16

38

11

7.5

5.5

4.3

3.8

3.2

2.6

2.4

2.3

2.6

5.5

8

4.0

-

Secondfoot-days

0

0 

197.2

2,970.2

1,953.8

687.3

139.4

302.3

124.3

3.5

0

0

0

3,407.8

May

52

10

5.5

4.0

3.2

2.6

2.4

2.1

1.9

1.8

7

5.5

3.0

2.4

2.4

2.3

1.9

1.6

1.4

1.1

1.0

.8

.7

.7

.9

1.5

1.3

1.0

.8

.7

.6

Maximum

0

0 

126

468

621

108

33

67

52

.5

0

0

0

621

June

0.5

.4

.4

.3

.3

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Minimum

0

0 

0

0

1.4

3.4

1.5

1.5

.6

0

0

0

0

0

July Aug.

Mean

0

0 

6.36

8.14

63.0

24.5

4.50

10.1

4.01

.12

0

0

0

9.34

Sept.

Runoff in 

acre-feet

0

0

391

5,890

3,880

1,360

276

600

247

6.9

0

0

0

6,760

Peak discharge.- Dec. 30 (6:3O a.m.) 269 sec.-ft.; Jan. 24 (12 p.m.) 990 sec.-ft.; Jan. 26 (2 

p.-a.) 1,790 sec.-ft.; Jan. 27 (9 a.m.) 2,010 sec.-ft.; Jan. 28 (5 a.m.) 610 sec.-ft.; Feb. 6

:ific standard time prior to

rt war time to standard tit

Feb. 9, 1942; Pacific war time thereafte
242 MOKELUMNE RIVER BASIN 

Salt Springs Reservoir near West Point, Calif.

Location.- Staff gage, lat. 38°30', long. 120°12', In SEi sec. 33, T. 8 N., R. 16 E., at 

Salt Springs Dam on North Fork of Mokelumne River, 2 miles upstream from Cold Creek 

and 18 miles northeast of town of West Point. Datum of gage Is 3,700 feet above mean 

sea level; gage readings have been reduced to elevations above mean sea level.

Drainage area.- 160 square miles.

Records available.- March 1931 to September 1942.

Extremes.- Maximum contents observed during year, 130,400 acre-feet July 2-5 (elevation, 

3,947.9 feet); minimum observed, 23,500 acre-feet Mar. 28 (elevation, 3,794.2 feet). 

1931-42: Maximum contents observed, 130,900 acre-feet June 14, 15, 1941; no contents Jan. 30 to Feb. 5, Feb. 18-26, 1932, Mar. 1-25, 1933.

Remarks.- Reservoir Is formed by concrete-faced rock-fill dam, completed In 1931; storage 

began In March 1931. Capacity, 129,500 acre-feet between elevations 3,707.25 feet 

(powerhouse Intake) and 3,947.0 feet (crest of spillway) above mean sea level. Additional storage of 1,860 acre-feet Is available for release to river through outlet 

drain at elevation 3,667.75 feet. Water Is released through powerhouse just below 

dam and discharged Into'Tiger Creek powerhouse conduit. Records show contents available, at 3 p.m., for use through powerhouse.

Cooperation.- Record of contents furnished by Pacific Gas and Electric Co. In connection 

with a Federal Power Commission project.

Contents, in acre-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

81.500

80,200

79,400

78,300

78,000

77,100

76,000

75,000

74,000

73,000

72,200

72,000

71,000

69,900

69,000

69,500

67,000

66,000

65,100

64,000

63,000

61,800

61,000

60,000

59,000

58,000

57,000

56,000

54,800

53,900

52,900

Nov.

52,000

52,900

53,300

53,000

52,400

51,800

50,900

50,200

49,400

48, 500

47,500

46,600

45,700

44,900

44,000

43,000

42,200

41,300

40,400

39,800

39,000

38,100

37,100

36,100

35,400

34,500

33,600

32,800

32,400

32,000

-

Dec.

31,300

31,000

43,000

44,800

45,500

46,200

47,000

47,200

47,100

46,900

46,700

46,400

46,000

45,900

46,100

47,600

48, 400

48,700

49,000

49,300

50,200

50,500

50,600

50,500

50,700

50,600

50, 800

51,300

51,600

52,000

51,800

Jan.

51,700

51,600

51,500

51,400

51,000

50,500

50,100

51,200

50,800

50,700

50,700

51,400

51,600

51,000

50, 900

50,500

50,200

50,500

50,400

50,300

50,200

49,000

48,700

48,700

50, 200

52,000

55, 100

57,200

58,100

58.400

59,000

Feb.

59,900

60,400

60, 500

59, 400

59,200

58,300

57,100

55,900

54,500

52,900

51,300

48,400

45,900

44,000

43,000

41,100

39,800

38,300

37,000

35,700

34,300

34,100

33,500

31,400

31,900

31,400

31,000

30,500

-

-

-

Mar.

30,SOO

30,700

30,200

29,800

29,900

29,800

30, 200

30,900

31,400

31,600

30,900

30,800

30,600

30,400

30,700

30,400

30,000

29,500

27,700

27,000

24,600

24,500

24,400

24,500

24,700

24,100

23,800

23,500

23,600

24,100

24,300

Apr.

24,200

24,500

25,200

27,200

28,300

29,000

28,600

28,300

31,100

32,200

33,300

35 , 400

38,500

41,300

44, 100

46,000

47,600

49,000

50,300

51,900

53,500

56,700

58,800

59,600

60 , 100

60,500

60,700

60,500

58,600

57,600

-

May

56,200

55,100

54,000

52,800

51,100

49,600

53,100

55,200

57,800

60, 100

61,500

62,700

62,200

62,200

62,600

63,200

64,000

64,900

66,200

69,800

74,300

78,900

82,100

83,500

86,200

85,200

82,400

80,700

79,300

78,500

78,400

June

79,100

81,800

84,600

87,900

92,700

98,200

103,400

106,600

109,100

112,000

113,800

114,900

115,400

116,100

117,200

118,400

119,600

118,600

120,000

121,000

121,700

123,100

124,900

126,600

128,600

129,300

129,800

129,900

130,000

130,000

-

July

130,000

130,400

130,400

130,400

130,400

130,300

130,100

130,000

129,800

129,700

129,600

129,400

129,400

129,400

129,400

128,900

128,600

128,200

128,200

128,200

128,100

128,100

126,500

125,800

125,100

124,600

123,700

123,300

122,100

121,500

120,700

Aug.

120,800

121,100

121,200

121,200

121,100

121,300

121,300

121,100

120,900

120,600

120,300

119,800

119,100

118,400

117,500

117,000

116,000

114,900

113,900

112,900

111,800

110,700

110,300

109,200

108,100

107,500

106,800

106,000

105,300

105,000

104,500

Sept.

103,500

102,500

101,200

100,200

99,100

98,000

97,200

96,300

95,200

94,200

93,100

92,100

91,400

90,600

89 , 600

88,600

87,500

86,500

85,600

84,700

83,900

83,100

82,100

81,200

80,300

79,800

79,600

79,000

78,600

78,300

-

Monthly elevation and contents, water year October 1941 to September 1942

Month

Dec. 31.................

Calendar year 1941. . . .

Sept. 30.................

Water year 1941-42....

Elevation

(feet)t

3,848.2

.

3,886.3

-

Contents 

(acre-feet)

51,800

.

104 500

78,300

-

Change in contents 

during month 

(acre-feet)

+19,800

+27,200

-26,200

-4,300

t Elevation at 3 p.m.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; 

LClflc war time thereafter. To convert war time to standard time, subtract act 1 hour.r
MOKELUMNE RIVER BASIN 243

North Fork of Mokelumne River below Salt Springs Dam, Calif.

Location.- Water-stage recorder, lat. 38°29', long. 120°13', In SWi sec. 33, T. 8 N., R.

IB E., 0.3 mile downstream from Salt Springs Dam and 1.7 miles upstream from Cold

Creek. Altitude of gage, about 3,600 feet (from topographic map). 

Drainage area.- 160 square miles.

Records available.- September 1926 to September 1942. 

Average discharge.- 15 years (1927-42), 429 second-feet (combined flow of North Fork of

Mokelumne River and Tiger Creek powerhouse conduit). 

Extremes.- Maximum discharge during year, 3,500 second-feet (regulated) May 26 (gage

height, 10.05 feet); minimum, 1.4 second-feet IIov. 30.

1926-42: Maximum discharge, 8,740 second-feet Mar. 25, 1928 (gage height, 15.62

feet, present datum), from rating curve extended above 4,000 second-feet; minimum, 0.2

second-foot Mar. 31, 1931. 

Remarks.- Records good. Flow regulated by Salt Springs Reservoir (preceding page), and

diversion In Tiger Creek powerhouse conduit (p. 248 ) 

Cooperation.- Water-stage recorder graph and three discharge measurements furnished by

Pacific Gas & Electric Co. In connection with a Federal Power Commission project.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

Oct. 1 to May 26 May 27 to Sept. 30

1.4 0.9 2.9 78 5.5 815 1.7 4.5 2.3 28

1.6 3.5 3.2 116 6.0 1,040 1.9 10 2.6 50

1.8 8 3.6 184 7.0 1,530 2.1 17 2.9 78

2.0 14 4.0 280 S.O 2,100 Note.- Same as preced2.3 29 4.5 432 9.0 2,SOO ing table above 2.9 feet.

2.6 51 5.0 610 10.1 3,640

Discharge, in second feet, water year October 1941 to September 1942

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

Oct.

9

7

6

6

5.5

.5

.5

.5

.5

.9

.7

.9

.9

.9

.7

.7

.7

.7

.7

.5

.3

.1

.1

.9

.9

.7

.5

3.5

3.3

Nov.

3.5

3.5

3.5

3.5

3.5

3.5

3.5

3.3

3.3

3.3

3.2

3.0

2.6

2.5

2.3

2.5

2.3

2.0

1.8

1.7

1.6

1.8

1.7

1.6

1.6

1.6

1.5

J.. 5

1.5

1.4

"

Dec.

1.5

2.3

83

4.3

2.8

2.5

2.3

2.3

2.3

2.1

2.0

1.8

1.7

2.0

2.1

4.1

3.2

2.8

2.6

3.0

3.0

2.8

36

24

3.2

38

3.3

5.5

45

6

4.3

Jan.

3.5

23

3.2

2.6

77

90

99

105

eo

5.5

4.9

148

88

76

73

59

3.9

3.3

56

52

44

53

57

11

16

325

350

313

353

344

9

Feb.

6

277

306

652

792

1,050

995

1,000

1,050

1,180

1,190

al,170

al,150

a995

990

1,260

982

833

833

833

518

518

514

490

174

64

60

4.1

-

-

"

Month

October. ...................................

November. ..................................

December. ...............................

Calendar year 1941 .....................

January. ...................................

February ....... ..................... .....

March. .....................................

April. ......... ......................... .

May............ ...... .................. .

June .............................. ...... .

July... .................... ...... ..... .

August ................................. . .

September. .................. ...... ...

Water year 1941-42 ......... ..... . . .

Mar.

2.1

47

50

21

28

6.5

2.3

1.7

1.7

132

300

326

283

208

208

216

277

479

558

525

518

518

199

2.8

2.3

2.1

2.0

29

106

59

2.0

Apr.

I. 1!

i.e

l.E

3.S

4.E

4.1

24

29

41

37

3.S

3.7

4.]

9

7

6.E

7

6

6

6

6

164

472

777

1,010

1,010

1,380

1,300

1,250

1,240

~

May

1,200

986

986

1,360

1,340

1,160

864

856

518

518

905

910

910

878

892

518

522

964

950

670

1,130

1,770

2,140

2,460

2,950

3,380

2,880

2,250

1,990

1,500

1,530

forays ""I 

152.1 9

74.1 3.5

301.8 83

105,081.2 3 000

2,927.9 353

19,886.1 1,260

5,112.5 558

8,816.8 1,380

41,887 3,380

50,863 2,860

7,217 1,220

362 13

226.5 10

137,826.8 3,380

June

1,710

1,130

913

930

960

950

964

1,550

2,080

2,190

2,670

2,860

2,700

2,700

2,730

2,570

2,520

2,390

1,760

1,630

1,520

1,340

1,240

1, 180

1,150

936

1,240

1,250

1,600

1,500

~

Minimum

3.3

1.4

1.5

1.3

2.6

4.1

1.7

1.6

518

913

14

10

6

1.4

July

1,220

1,000

910

864

833

682

522

394

230

140

98

39

16

16

16

16

16

16

15

15

15

15

15

15

15

14

14

14

14

14

14

Aug.

13

13

13

13

13

13

13

13

13

12

12

12

12

12

12

12

11

11

11

11

11

11

11

11

11

11

11

10

10

10

10

Sept.

10

10

9.5

9.5

9.5

9

9

9

e.s

8.5

8

8

7.5

7.5

7.5

7

7

6.5

6

6

6.5

7

7

6.5

6

6

6

6

6

6

"

Mean Runoff in Mean acre-feet

4.91 302

2.47 147

9.74 599

288 208,400

94.4 5,810

710 39,440

165 10,140

294 17,490

1,351 83,080

1,695 100,900

233 14,310

11.7 718

7.55 449

378 273,400

a Ho gage-height record; discharge furnished by Pacific Gas & Electric Co.

Note.- Doubtful gage-height record July 18 to Aug. 28; discharge computed on basis of flow through 

weir below dam.

Time basis: Pacific standard time prio

war time to standard time, subtract 1 hour.

Feb. 9, 1942; Pacific war time theroafte
244 MOKELUMNE RIVER BASIN 

Mokelumne River near Mokelumne Hill, Calif.

Location.- Water-stage recorder, lat. 38°18'40", long. 120°43'10", In sec. 1, T. 5 N.,

 R. 11 E., at highway bridge, 1.2 miles northwest of Mokelumne Hill and 8 miles downstream from confluence of North and South Forks. Altitude of gage, about 650 feet 

 (from topographic map).

Drainage area.- 538 square miles.

Records available.- November 1927 to September 1942.

Average discharge.- 14 years (1928-42), 866 second-feet.

Extremes.- Maximum discharge during year, 9,660 second-feet Jan. 27 (gage height, 10.45

 feet); minimum, 70 second-feet (regulated) Sept. 28. , . ,,»,*. 1R 1n 

1927-42: Maximum discharge, 23,300 second-feet Mar. 25, 1928 (gage height, 16.10 

feet), from rating curve extended above 10,200 second-feet on basis of velocity-area 

studies; minimum, 14 second-feet Oct. 27, 1929.

Remarks.- Records excellent except those for periods of no gage-height record, which are

 good. Flow regulated by Salt Springs Reservolrf several smaller reservoirs, three 

power plants, and several diversions above station.

Rating tables, water year 1941-42 (gage height, In feet, an 

Oct. 1 to Novi. 1

id discharge, In second-feet) 

Nov. 2 to Sept. 30

2.1 200 2.0 172 3.4 765 6.0 3,080

2.3 262 2.1 20

2.5 334 2.3 26

2.7 414 2.5 33

2.9 505 2.8 45

0 3.8 1,010 6.5 3,690

2 4.2 1,280 7.0 4,340

2 4.6 1,600 8.0 5,770

2 5.0 1,970 9.0 7,340

3.2 660 3.1 596 5.5 2,490

Discharge, in second- feet, water year October 1941 to Septenber 1942

Day

1

2

3

4

5

6

7

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.

517

530

590

575

294

335

530

555

560

560

496

203

367

467

555

590

575

545

486

505

636

610

565

570

570

520

545

570

610

590

595

Nov.

555

394

530

623

601

596

575

607

525

525

580

565

580

544

525

515

530

570

a530

8480

a330

a490

a490

596

539

510

478

501

456

341

Dec.

410

463

2,020

746

612

406

328

269

520

645

730

701

707

544

730

947

921

730

771

507

406

418

684

736

a580

8390

a640

8790

a960

al,400

867

Jan.

707

634

586

487

549

719

831

1,110

971

795

539

719

873

873

855

867

759

483

307

825

825

777

927

1,600

3,300

3,480

7,280

4,540

2,560

2,020

1,620

Feb.

952

1,320

1,640

2,100

2,960

3,700

3,640

2,800

2,770

2,640

2,640

2,490

2,340

2,070

1,770

1,880

1,950

1,550

1,520

1,450

1,410

1,150

1,200

1,300

1,360

1,100

997

958

_

_

-

Month

October. ...................................

Novenber ...................................

Decenber ...................................

Calendar year 1941 ......................

January. ...................................

February ...................................

March. .....................................

April ......................................

Hav ay. .......................................

June .......................................

July. ......................................

August .....................................

September. .............. ..................

Water year 1941-42 . . ..................

Mar.

713

686

1,060

945

933

971

831

673

74S

958

1,460

1,600

1,420

1.220

1,110

1,040

1,220

1,410

1,620

1,560

1,520

1,180

1,190

1,020

909

939

858

921

612

874

958

Apr.

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

2

2

2

2

2

2

2

2

Secondfoot-days

16,218

15,681

21,620

423,997

43,418

53,857

3:5,259

56,023

96,990

92,060

30,632

17 495 15)524

492,877

990

933

,210

,850

,630

,720

.540

,510

,560

,520

,640

,410

,'660

,770

,980

,850

,870

,690

,510

,640

,660

,730

,210

,150

,600

,470

,820

,840

,570

,490

-

May

2,770

2,410

2,310

2,480

2,700

2,770

2,570

2,830

2,670

2,040

2,200

2,360

2,090

2,150

2,400

2,280

1,830

2,230

2,790

3,OSO

3,660

4,660

4,660

4,710

5,940

6,180

4,840

4,170

3,460

2,950

2,800

MaxiBum

638

623

2,020

5,190

7,280

3,700

1,620

2,840

6,180

4,500

2,140

690

661

7,280

June

3,340

3,080

2,540

2,820

3,080

3,190

2,900

2,840

3,940

4,000

4,430

4,370

4,470

4,260

4,500

4,040

3,790

3,900

3,120

2,670

2,560

2,300

2,280

2,180

2,040

1,770

1,590

1,920

1,970

2,170

-

Hininum

20!

33C

28£

154

30r

955

615

93!

1 t 83'

1.59C

38

20'

is:

18.

July

2,110

2,140

2,100

1,930

1,820

1,670

1,500

1,270

1,130

1,020

958

795

656

628

753

759

701

639

554

381

530

673

730

707

628

520

628

678

724

661

639

Aug.

645

507

534

650

623

661

561

590

570

618

601

Mean

523

523

697

1,162

1,401

1,923

' 1,073

1,867

> 3,129

) 3,069

9S8

564

5 521

! 1,350

661

661

645

650

452

520

634

645

645

650

591

374

470

618

461

496

435

478

243

206

Sept.

582

656

612

591

623

539

347

623

661

650

623

634

366

252

628

607

591

565

596

483

419

634

549

580

618

336

183

256

461

359

-

Runoff in 

acre-feet

32,170

31,100

42,880

841,000

86,120

106,800

65,970

111,100

192,400

182,600

60,760

34,700

30,990

977,600

a No gage-height record; discharge computed on basis of records for station at Lancha Plans and 

unpublished records of storage and diversions at Pardee Reservoir.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific *ur time thereafter. 

To convert war time to stindard time, subtract 1 hour.
IIOKELUMNE RIVER BASIN 245

Mokelumne River at LanchaPlana, Calif.

Location.- Vlater-stage recorder, lat. 38°13'25", long. 120°53'20", in SWi sec. 4, T. 4 

N., R. 10 E., 1 mile 3ast of Lancha Plana, 3 miles downstream from Pardee Dam, and 

5 miles upstream from Caroanche Creek. Datum of gage is 158.95 feet above ^ean sea 

level (levels by East Bay Hinicipal Utility District).

Drainage area.- 584 square miles.

Records available.- June 1926 to September 1942.

Average discharge.- 13 years (1929-42; since start of East Bay aqueduct diversion). 

829 second-feet.

Extremes.- Maximum discharge during year, 6,100 second-feet Jan. 27 (gage height, 9.38 

feet); minimum, 153 second-feet (regulated) Aug. 23, 24, 30, 31; Sept. 13.

1926-42: Maximum discharge, 27,300 second-feet Mar. 25, 1928 (gage height, 19.65 

feet), from rating curve extended above 15,500 second-feet on basis of velocity-area 

studies; minimum, 5.5 second-feet Nov. 21, 1929.

Remarks.- Records excellent. Flow regulated by Pardee and Salt Springs Reservoirs, 

several smaller reservoirs, four hydroelectric plants, and several diversions above 

station. East Bay Municipal Utility District aqueduct is largest diversion not returned to river above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

515

505

643

638

430

480

535

545

567

549

643

362

496

526

558

567

653

653

305

496

658

513

648

605

568

295

483

527

574

532

542

Nov.

596

356

527

516

658

653

658

658

430

603

658

658

575

658

658

261

514

543

592

530

602

653

423

603

518

545

548

545

663

473

Dec.

648

521

515

540

663

663

293

515

545

544

663

663

668

539

531

545

663

658

658

668

658

673

668

593

235

663

673

409

540

864

966

Jan.

966

1,190

1,470

1,430

1,820

2,680

2,850

2,570

1,290

678

673

668

668

678

673

668

683

673

673

678

678

683

760

1,460

2,750

3,590

5,120

5,050

4,fa30

4,830

4,280

Feb.

2,880

1,180

1,480

2,210

3,940

3,720

3,940

2., 690

2,450

2,840

2,850

2,840

2,490

2,240

1,360

1,340

2,050

1,970

1,560

1,450

1,450

1,220

1,120

1,140

1,140

1,130

1,010

924

_

-

Month

October ........ ...........................

November. ..................................

December ...................................

Calendar year 1 941 .................. ...

January. ...................................

February. .................................

March. ..................... . ........ ...

April ......................... .......... .

Mnv ay ............. .................... . ...

June .................... ..................

July. .................. . . ................

August .......... ......... . ...........

September. . . .................... .........

Water year 1941-42 ... .............. ...

Mar.

837

658

668

837

942

942

918

648

673

788

1,450

1,660

1,580

1,190

1,190

1,160

966

1,300

1,460

1,670

1,670

1,210

1,010

1,120

936

942

948

954

673

673

673

Apr.

688

930

996

1.670

1,820

1,790

1,740

1,440

1,440

1,450

1,44C

1,390

1,490

1,780

1,780

2,110

2,170

1,790

1,550

1,440

1,460

1,550

1,810

2,340

2,340

2,310

2.41C

2,890

2,89C

2,60C

-

Secondfoot-days

16,611

16,875

18,645

367,329

57,710

56,614

32,346 

53,504

92,230

65,678

16 ,667

17,221

472,386

May

2,550

2,880

2,320

2,340

2,410

2,850

2,770

2,310

2,340

2,300

2,340

2,330

2,260

1,770

1,960

2,290

2,290

2,300

2,630

2,850

3,040

3,850

4,400

4,480

4,580

4,820

4,820

4,830

3,620

2,850

2,850

Maximum

658

663

966

4,780

5.120

3,940

1,670

2,890

4,830

4,180

2,080

670

650

5,120

June

2,360

1,780

1,500

1,340

1,340

1,340

1,310

1,330

1,970

2,350

3,210

4,180

4,140

4,140

4,170

4,160

3,820

3,620

3,180

2,440

2,350

1,910

1,620

1,220

950

950

775

620

620

983

-

Minimum

295

261

235

157

668

924

648

688

1,770

620

360

172

229

172

July

1,760

1,930

2,080

2,000

1,940

1,580

1,400

1,320

1,140

896

830

758

680

546

655

612

650

580

360

547

640

576

592

553

573

455

512

502

482

567

569

Aug.

560

444

603

670

650

650

645

645

194

593

565

640

640

640

511

201

466

640

640

640

640

640

216

481

505

534

532

640

518

172

552

Mean

536

562

6C1

1,061

1,862

2,022

1,043

1,783

2,975

2,189

912

538

574

1,294

Sept.

620

640

635

625

635

229

380

635

640

640

640

640

263

635

496

487

520

635

497

382

603

645

645

645

569

645

650

650

650

645

-

Runoff in 

acre feet

32,950

33,470

36,980

768,300

114,500

112,303

64,160

106,100

182,900

130,300

56,100

33,060

34,160

957,000

basis; Pacific standard time prior to 2 a.m., Psb. 9, 1942; Pacific
246 MOKELUMNE RIVER BASIN

Mokelumne River near Clenents, Calif.

Location.- Water-stage recorder, lat. 38°12'25", long. 121°05'20", In NWJ sec. 15, T. 

4 N., R. 8 E., 700 feet upstream from highway bridge, 1 mile north of Clements, and 

3 miles downstream from Murphy Creek. Datum of gage 67.16 feet above mean sea level 

(levels by East Bay Municipal Utility District).

Drainage area.- 630 square miles.

Records available.- October 1904 to September 1942.

Average discharge.- 24 years (1904-28), 1,110 second-feet; 13 years (1929-42), 835 secondfeet^ ( Storage and diversion by East Bay Municipal Utility District began March 1929).

Extremes.- Maximum discharge during year, 7,440 second-feet Jan. 27 (gage height, 13.54 

feet); minimum, 167 second-feet Oct. 26.

1904-42: Maximum discharge, 25,600 second-feet Mar. 25, 1928 (gage height,32.45 

feet, site and datum then in use),from rating curve extended above 4,600 second-feet 

and verified by comparison with records for Mokeliwine River at Lancha Plana;no flow 

July 9, Aug. 15, 20-23, 1924.

Remarks.- Records excellent. Diversions and storage above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

SO

31

Oct.

495

496

636

640

478

423

b29

536

557

536

640

400

449

522

543

543

636

636

343

431

640

501

629

590

550

334

431

505

561

518

b25

Nov.

582

375

494

507

636

636

636

644

504

511

640

636

546

636

640

359

402

518

575

611

489

640

446

539

500

&26

524

522

659

496

-

Dec.

615

521

521

523

648

648

333

466

53M

523

640

648

651

554

508

549

651

651

651

655

648

663

659

655

269

557

678

532

515

938

1,010

Jan.

970

1,080

1,480

1,430

1,660

2,560

2,870

2,700

1,700

697

674

667

667

674

670

667

678

670

659

674

670

674

748

1,780

2,900

3,500

5,900

5,460

4,840

4,760

4,440

Feb.

3,370

1,220

1,580

1,950

3,840

3,790

4,180

3,030

2,370

2,800

,790

,780

,560

,290

,570

,210

,870

,060

,620

,440

,450

,300

,MO

,140

,140

,140

,080

943

_

-

-

Month

October. ...................................

November ..... . ...........................

December. ..................................

Calendar year 1941 ....... ...........

January. ........ . ........................

February. ..................................

March. .....................................

April. ......... ...........................

Mav ay. ........... ...........................

June ............. ........... .............

July.: .................. ..................

August .................... .............

September. .................................

Water year 1941 -4S ......................

Mar.

894

663

674

772

938

943

961

697

670

728

1,720

1,670

1,670

1,240

1,210

1,200

970

1,220

1,430

1,630

1,660

1,360

961

1,190

930

934

938

943

720

663

667

Apr.

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

2

2

2

2

2

2

2

Secondfoot-days

16,253

16,429

18,613

392,241

59,609

57,653

32,866

52,729

90,110

65,205

27,683

16,499

17,292

470,941

Time basis: Pacific atpndard time prior to 2 a.m., Pe

667

869

943

,580

,800

,780

,770

,460

,440

,450

,440

,390

,410

,770

,770

,970

,380

,790

,620

,430

,450

,480

,760

,240

,330

,300

,320

,750

,800

,650

-

May

2,390

2,790

2,400

2,270

2,280

2,710

2,760

2,320

£,270

2,270

2,290

2,290

2,290

1,780

1,820

2,260

2,240

2,260

2,470

2,780

2,830

3,570

4,120

4,360

4,400

4,660

4,700

4,740

4,100

2,850

2,840

Maximum

640

659

1,010

4,850

5,900

4,180

1,720

2,800

4,740

4,130

2,000

664

656

5,900

June

2,560

1,800

1,600

1,360

1,350

1,350

1,320

1,330

1,750

2,330

2,800

4,070

4,100

4,090

4,120

4,130

3,900

3,540

3,300

2,410

2,330

1,890

1,660

1,250

950

942

850

649

631

843

-

Minimum

334

359

269

269

65S

942

652 66"?

1,78C

631

359

312

319

269

July

1 ,610

1,820

2,000

1,940

1,900

1,600

1,370

1,290

1,160

92S

850

760

700

556

656

610

660

581

369

520

631

563

574

534

545

505

434

483

493

479

562

Aug.

53S

471

549

664

635

624

628

631

330

460

566

638

635

635

517

328

341

635

638

638

638

638

367

335

500

529

528

628

507

312

416

Mean

524

548

600

1,075

1,923

2,059

1,060

1,758

2,907

S.174

893

532

576

1,290

Sept .

617

635

638

638

638

319

375

566

638

638

638

642

357

552

526

485

524

642

499

368

592

642

642

642

577

642

646

642

656

656

~

Runoff in 

acre- feet

32,240

32,590

36,920

778,000

118,200

114,400

65,190

104,600

1-78,700

129,300

54,910

32,730

34,. -500

9.14,100

b. 9, 1942; Pacific war time thereafter.
I10KELUNNE RIVER BASIN 247

Mokelurcne River at Woodbridge, Calif.

Location.- Water-stage recorder, lat. 38°09'30", long. 121°18'10", in NEi sec. 34, T

., R. 6 E., at Woodbridge, three-eights of a mile downstream from dam of Woodbridge

' EaSt

Drainage area.- 644 square miles.

Records available.- May 1924 to September 1942 (for 1924 and 192G, low-water records

Average discharge.- 13 years (1929-42), since start of diversion through East Bay 

Utility District aqueduct, 684 second-feet.

Extremes .- Maximum discharge during year, 4,950 second-feet Jan. 28 (gage heicht 22 46 

feet); minimum, 42 second-feet Dec. 14. <~>.-~ 

«*^^~^l ^tXl^«^ff height, 26.58 feet, datum then in use (about 30.6 feet, present 

datum). Mar. 26, 1928 (discharge not determined); minimum discharge, 0.9 second-foot 

DO PL 0^ J.y*d4 

Remarks^- Records excellent, now regulated by storage, power plants, and many diversions 

SLuove s tsiL ion »

Discharge, in second-feet, water year October'1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

410 

293 

327 

428 

416

247 

259 

291 

318 

329

361 

404 

194 

277 

318

350 

380 

432 

382 

169

318 

390 

361 

464 

422

382 

253 

372 

418 

462 

416

Nov.

440 

470 

416 

476 

512

591 

576 

550 

545 

352

502 

558 

651 

532

673

583 

449 

524 

550 

602

520 

602 

618 

434 

545

520 

530 

615 

598 

596

Dec.

536 

574 

545 

528 

583

644 

598 

336 

508 

530

572 

635 

298 

847 

565

539 

587 

633 

633

638

635 

635 

644 

640 

524

341 

607 

642 

456 

690 

946

Jan.

922 

917 

1,230 

1,300 

1,320

1,720 

2,150 

2,410 

2,490

1,350

852 

759 

726 

706 

695

682 

679

673 

653 

660

655 

651 

662 

1,050 

1,860

2,390 

3,300 

4,740 

4,900 

4,790 

4,720

Feb.

4,460 

3,360 

1,790 

1,640 

2,120

3,310 

3,800 

4,010 

3,260 

2,650

2,770 

2,820 

2,810 

2,600 

2,300

1,580 

1,630 

1,970 

1,950 

1,650

1,540 

1,500 

1,290 

1,220 

1,210

1,180 

1,160 

1,040

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

ffa

her. ............................... ...

lendar year 1941 

ary

h. ......... ...........................

1. ...... ...... ......................

St. ....................................

ember. . 

ter year1941-42 ......................

Time basis: Pacific standard tiTie prior

To convert war time to standard time, aubtra

Mar.

1,000 

858 

790 

781 

915

937 

939 

868 

744 

742

1,220 

1,560 

1,630 

1,540 

1,320

1,260 

1,150 

1,090 

1,310 

1,460

1,580 

1,600 

1,160 

1,150 

1,030

956 

943 

946 

883 

708 

699

Apr.

690 

752 

9O4 

1,120 

1,570

1,700 

1,710 

1,640 

1,470 

1,450

1,450 

1.430 

1,380 

1,530 

1,710

1,740 

2,000 

2,100 

1,860 

1,570

1,490 

1,480 

1,570 

1,800 

2,130

2,260 

2,280 

2,200 

2,620 

2,780

Secondfoot-days

10,743 

16,130 

18,089

335,797

52,612 

62,620 

33,76s 

50,386 

85,580 

58,223 

16,474 

6,219 

8,611

419,456

May

2,680 

2,560 

2,760 

2,120 

2,260

2,280 

2,560 

2,610 

2,300 

2,160

2,180 

2,190 

2,190 

2,120 

1,680

1,800 

2,060 

3,060 

2,080 

2,290

2,550 

2,780 

3,300 

3,880 

4,170

4,260 

4,380 

4,430 

4,510 

3,690 

2,690

Maximum

464 

673 

946

4,440

4,900 

4,460 

1,630 

2,780 

4,510 

3,820 

1,480 

371 

428

4,900

June

2,620 

2,100 

1,650 

2,280 

1,190

1,130 

1,120 

1,080 

1,090 

1,640

1,900 

2,590 

3,510 

3,710 

3,740

3,760 

3,820 

3,630 

3,240 

2,990

2,400 

2,000 

1,590 

1,290 

818

672 

626 

422 

325 

290 

-

Minimum

16£ 

35£

29E

5>

653 

1.04C 

69$ 

69C 

1.68C 

29C 6r 

64 

10]

6'

July

779 

1,160 

1,400 

1,470 

1,480

1,420 

1,120 

994 

845 

686

472 

448 

392 

320 

278

351 

529 

206 

218 

137

214 

249 

213 

204 

164

182

148 

128 

86 

67

114

Aug.

156 

242 

100 

203 

243

242 

272 

236 

220 

64

133 

210 

253 

264 

253

203 

82 

105 

239 

266

278 

292 

284 

89 

99

172 

194 

214 

371 

167 

74

Mean

347 

> 538

584

> 920

1,697 

2,236 

1,089 

1,680 

2,761 

1,941 

531 

201 

287

I 1,149

Sept.

125 

250 

26S 

353 

335

317 

101 

114 

270 

312

314 

324

357 

118 

233

188 

194 

248 

324 

225

172 

324 

389 

382 

356

358 

396 

428 

423 

413

Runoff in 

acre-feet

21,310 

31,990 

35,880

666,100

104,400 

124,200 

60, 980 

99,940 

169,700 

115,500 

32,680 

12,340 

1-7,080

832,000

o 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

ct 1 hour.
248 MCKELUMNE RIVER BASIN

Tiger Creek powerhouse conduit below Salt Springs Dam, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°30', long. 120°13', in SWi 

sec. 33, T. 8 N., R. 16 E., 1,000 feet downstream from Salt Springs Dam and powerhouse. 

Altitude of gage, about 3,700 feet (from topographic map).

Records available.- June 1931 to September 1942. 

Average discharge.- 11 years, 241 secopd-feet.

Extremes.- Maximum daily discharge during year, 558 second-feet July 2, 3, 5-11; no flow 

at times.

1951-42: Maximum daily discharge, 559 second-feet June 2t>, 1941; no flow at times 

in each year.

Remarks.- Records excellent. Conduit conveys water of North Fork of Ilokelumne River from 

tailrace of Salt Springs powerhouse to forebay of Tiger Creel: powerhouse, picking; up 

water en route from Bear River and several small creeks.

Cooperation.- Water-stage recorder graph and two discharge measurenents furnished by 

Pacific Gas ft Electric Co. in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

538

538

538

434

219

524

524

526

524

520

307

226

520

523

524

524

526

490

522

534

535

536

540

541

528

526

540

538

540

541

471

Nov.

414

1.5

395

424

444

463

482

481

480

511

511

510

506

5O4

518

512

486

482

469

266

478

534

528

463

457

454

450

440

298

298

-

Dec.

436

398

37

238

302

.7

2.1

361

370

372

378

379

344

199

236

167

230

292

230

18

28

319

330

30O

38

273

102

35

285

241

232

Jan.

238

312

238

250

364

377

337

232

256

238

127

287

384

392

402

410

349

24

424

424

438

433

412

292

24

46

9.5

15

16

16

15

Feb.

15

82

147

127

124

110

8

24

202

196

183

198

210

.5

.5

3.2

2.4

2.7

2.7

2*8

3.2

16

38

291

330

343

350

281

-

-

-

Month

October. ...................................

November . ..................................

December. ..................................

Calendar year 1941 ............... ......

January. ................................ .

February ............................. ... .

March. .....................................

April. .....................................

Bay. .......................................

June ........................ ..............

July. .................................. ...

August .....................................

September. ............................... .

Water year 1941-42 ......................

Mar.

98

350

350

363

370

307

145

.4

317

347

281

259

246

165

17

256

314

329

342

333

232

.1

308

360

357

353

379

304

.5

345

432

Apr.

432

414

365

295

294

318

349

337

335

329

246

.4

.4

.5

.5

1.5

13

93

101

42

.4

2.4

2.2

55

40

36

15

67

146

166

-

Secondfoot-days

15,417

13,259.5

7,172.8

103,481.6

7,781.5

3,293.0

8,260.0

4,496.3

488.1

91

15,354

14,874

13,388.5

103,875.7

May

159

187

124

3.3

3.2

3.2

3.2

3.2

0

0

0

0

2.0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Maximum

541

534

436

559

438

350

432

432

187

91

558

547

556

558

June

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

91

-

Minimum

219

1.5

.7

0

9.5

.5

.1

.4

0

0

88

52

.5

0

July

367

558

558

552

558

558

558

558

556

556

558

504

424

455

494

493

442

448

88

426

511

516

518

523

522

409

524

528

529

529

530

Aug.

529

529

530

530

530

536

538

536

534

541

542

546

546

547

547

334

542

542

544

544

544

546

263

544

500

352

365

364

363

52

414

Mean

497

442

231

284

251

118

266

150

15.7

3.03

495

480

446

285

Sept.

544

540

541

541

541

337

544

542

542

544

546

530

160

554

554

556

536

476

470

313

452

478

480

481

401

242

.5

406

211

326

-

Runoff in 

acre feet

30,580

26,300

14,230

205,300

15,430

6,530

16,380

8,920

968

180

30,450

29,500

26,560

206,000

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific w< 

To convert war time to standard time, subtract 1 hour.

ir time thereafter
NOKELUI1NE RIVER BASIN 

Cold Creek near Mokelumne Peak, Calif.

249

Location.- Water-stage recorder, lat. 38°31', lone. 120°13', in sec. 28, T. 8 N., R. 16 

E., 2.4 nilos upstream from mouth and 6 miles southwest of Mokelunne Peak. Altitude 

of gage, about 6,000 feet (from topographic map).

Drainage area.- 23 square miles.

Records available.- July 1927 to September 1942.

Average discharge.- 15 years, 58.3 second-feet.

Extremes.- Maxinum discharge during year, 1,710 second-feet Dec. 3 (gage height, 6.11 

feet); nininun discharge, 0.1 second-foot Sept. IE-30.

1927-42: Maximum discharge, 4,100 second-feet Dec. 11, 1937 (gage height, 8.90 

feet), from rating curve extended above 1,000 second-feet on basis of velocity-area 

and AVcTstudies; practically no flow Aug. 17 to Oct. 7, 1931.

Remarks.- Records good except those for periods of ice effect, which are fair.

Cooperation.- Water-stage recorder graph and two discharge measurements furnished by 

Pacific Gas £ Electric Co. in connection with a Federal Power Commission project.

1.0 

1.2 

1.4

Rating tables, water year 1941-42, except periods of ice effect (gage height, 

in feet, and discharge, in second-feet)

0.2

.8

2.6

Oct. 1 to Dec. 3

1.6 

1.8 

2.0 

2.3 

2.6 

2.9

110

158

3.2 

3.6

218

318

444

608

815

0.3 0.1

Dec. 4 to Sept. 30 

1.0 5.0

.4 .2 1.2 10 f. 

.6 .8 1.4 17 2 

.8 2.4 1.6 28 

Note.- Same as preceding table 

2.3 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3 

4

5

6

7

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.

0.2

.2

.2 

.2

.2

.3

.3

.3

.3

v3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.3

.4

.3

.2

.2

.4

.3

.4

.4

.3

.3

.3

Nov.

1.6

163

45 

17

9

6

4.4

3.4

2.7

2.4

2.0

1.7

1.6

1.5

1.4

3.1

9

7

5.5

3.7

2.9

2.6

3.0

2.2

2.0

2.0

1.9

2.0

3.3

24

-

Dec.

13

393

659 

9.1

64

50

b35

b25

b20

b!8

1 < )

> b!4

J

124

151 ""1

> b50

'

^

> b30

1

1

b22

Jan.

b20

b25

b70

b55

b45

b40

, b30

53

128

307

124

80

64

56

Feb.

50

47

44 

40

39

38

36

36

35

34

34

b34

b33

b32

b31

30

28

27

27

26

26

25

b25

b25

b24

b24

23

23

-

-

-

Mar.

b22

b25

X

1

> b30

I

i

. b35

>.

> b40

1

'

»3b

39

42

60

73

86

Apr.

84

117

186 

171

87

73

84

118

142

151

162

211

267

186

117

127

91

84

126

171

218

267

218

176

220

207

186

11?

95

84

-

May

79

81

108 

138

167

240

318

351

315

216

160

123

116

140

132

113

154

218

339

520

580

603

466

524

603

293

225

207

158

160

250

June

348

363

384 

480

554

549

410

424

492

476

448

420

413

462

417

348

351

345

282

250

254

272

277

240

182

142

138

154

163

165

-

July

153

135

123 

113

91

75

66

56

44

39

35

28

24

21

22

20

16

14

12

11

9

7.5

6

5

4.4

3.7

3.1

2.6

2.2

2.0

1.6

Aug.

1.5

1.3

1.2 

.9

.8

.7

.6

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.3

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

Sept.

0.2

.2

.2 

.2

.2

.2

.2

.2

.2

.3

.3

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

.1

-

Month

Unv

Water year 1941-42 . . . . ..............

Secondfoot-days

8.5 

336.9 

2,181

29,752.5

1,597 

896 

1,160 

4,543 

8,097 

10,203 

1,145.1 

15.0 

4.9

30,187.4

Maximum

0.4 

163 

659

659

307 

50 

86 

267 

603 

554 

153 

1.5 

.3

659

Minimum

0.2

1.4

.2

23

73 

79 

138 

1.6 

.2 

.1

.1

Mean

0.27 

11.2 

70.4

81.5

51.5 

31.9 

37.4 

151 

261 

340 

36.9 

.48 

.16

82.7

Runoff in 

acre-feet

17 

668 

4,330

59,000

3,170 

1,780 

2,300 

9,010 

16,060 

20,240 

2,270 

30 

9.7

59,880

« Winter discharge measurement made on this day. 

b Statje-uischar-ge relation affected by ice. 

Time basis: Pacific standard time prior to 2 a.m., Feb. 9. 1942: Pacific war time thereafter.

To convert war time to standard time, subtract 1 hour.

530350 O 43 17
250 MOKELUMNE RIVER BASIN 

Bear River at Pardoe Camp, Calif.

Location.- Water-stage recorder, lat. 38°32', long. 120°15', in sec. IB, T. 8 N., R. 16 

E., 2 niles downstream from Bear River Reservoir or Pacific Gas & Electric Co. Altitude of gage, about 5,650 feet (from topographic nap).

Drainage area.- 33.0 square miles.

Records available.- July 1927 to September 1942.

Average discharge.- 15 years, 97.1 second-feet.

Extremes._ Maximum discharge during year, 1,680 second-feet May 25 (gage height, 6.28 

feet); minimum, 0.7 second-foot Oct. 2, 3.

1927-42: Maximum discharge, 5,850 second-feet Dec. 11, 1937 (gage height, 12.0 

feet, from floodmarks), from rating curve extended above 1,500 second-feet; no flow 

Sept. 8-30, Oct. 1-4, 7-29, 1928, result of regulation.

Remarks.- Records good. About 6,000 acre-feet is stored each year at reservoir above 

station and usually released during late summer and early winter.

Cooperation.- Water-stage recorder graph and two discharge measurements furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1941-42, except periods of Ice effect (gage height, 

in feet, and discharge, In second-feet)

0.4 0.5 1.9 62

.6 1.6 2.2 95

.8 4.5 2.6 154

1.0 10 3.0 234

1.3 22 3.4 326

1.6 38 3.3 438

4.2 566

4.6 725

5.0 925

5.4 1,150

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

23

29

30

31

Oct.

0.8

.7

.7

.8

1.0

1.1

1.2

1.2

1.3

1.3

1.3

1.4

1.5

1.5

1.5

1.5

1.4

1.3

1.3

1.5

2.0

1.8

1.6

1.7

2.1

2.0

2.4

6.5

3.3

1.8

1.4

Nov.

5.5

62

66

63

58

52

45

35

15

6-5

4.0

3.1

2.7

2.3

2.1

4.4

16

12

8

6

4.5

3.8

3.3

2.8

2.6

2.3

2.2

'{..2

2.4

31

-

Dec.

24

60

168

123

125

122,

119

116

114

111

108

107

104

107

140

151

132

132

132

132

127

124

122

119

116

115

114

114

112

109

108

Jan.

105

103

102

103

99

96

102

132

114

109

108

92

21

20

18

16

15

14

13

13

13

13

13

26

Ifil

195

25 1

91

66

59

57

Feb.

57

59

60

53

65

71

64

58

56

132

182

178

170

165

159

154

149

146

141

136

132

b!28

b!25

124

b!21

bll6

bl!2

b!09

-

-

-

Month

October. . ..... .... . . . ....... .......

November. . . . . . . ....................

December. . ................................

Calendar year 1S41 . . ..................

January ..... ... . ........................

February ... . . ...... . . .... . .........

March. . . . . . . . . .... ........ ....

April . . ..................

May. . . ................

June. . . . . . ...... .............

July . ... . . . ............

August . . . . . .............

September ... ..... ..... ........

Water year 1941-42 . . . . ...............

Mar.

b!09

103

blOS

b!08

111

112

112

115

115

116

135

128

115

bill

b!04

blOO

100

98

b95

b93

93

94

91

89

87

b84

51

18

22

28

33

Apr.

Secondfoot-days

50.9

525.7

3,612

49,525.9

2,350

3,230

2,883

5,835

13,661

16,467

2,234

664

1,116

52,628.6

37

44

74

76

49

47

55

62

74

94

96

108

352

389

223

227

167

148

216

297

357

450

350

278

368

354

333

206

152

140

-

May

136

132

192

252

273

376

503

570

516

349

294

214

206

247

280

210

249

376

539

800

914

974

756

855

1,140

546

393

382

285

275

427

Maximum

6.5

66

168

1,140

261

132

135

450

1,140

881

252

27

78

1,140

June

602

610

588

743

38 1

865

668

702

800

775

720

676

672

734

668

556

546

552

478

416

407

427

430

390

318

247

227

243

25S

268

-

Minimum

0.7

2.1

24

.7

13

56

18

37

132

227

27

16

10

.7

July

252

227

203

190

163

132

115

93

78

66

55

49

42

38

37

35

33

33

32

32

31

30

30

30

30

29

28

28

28

28

27

Aug.

27

26

26

25

24

24

24

24

24

24

23

22

22

22

22

21

21

20

20

20

20

19

19

19

19

19

19

18

18

17

16

Sept.

16

16

16

15

15

15

15

15

15

14

12

12

11

11

11

10

29

78

73

73

70

69

67

66

64

63

62

61

59

58

~

Mnan Runoff in 

Mean acre- feet

1.64 101

17.5 1,040

117 7,160

136 98,210

7S.8 4,660

115 6,410

93.0 5,720

194 11,570

441 27, 100

549 32,660

72.1 4,430

21.4 1,320

37.2 2,210

144 104,400

age-discharge relation affected by Ice.

basis: Pacific standard tine prior to 2 a.m., Feb. 9, 1942; Pacific 

vert war time to standard time, subtract 1 hour.
MOKELUMNE RIVER BASIN 251

Middle Fork of Mokelumne River at West Point, Calif.

Location.- Water-stage recorder, lat. 38°23'15", long. 120°31'40", in sec. 10, T. 6 N., 

R. I5~E., 200 feet downstream from highway bridge, 1 mile south of West Point, and 

3i miles upstream from South Fork. Altitude of gage about 2,500 feet (from topographic 

map).

Drainage area.- 67.2 square miles.

Records available.- October 1926 to September 1942. October 1911 to October 1926 at site 

about 1,200 feet upstream.

Average discharge.- 30 jears (1912-42), 54.6 second-feet.

Extremes.- Maximum discharge during year, 1,560 second-feet Jan. 27 (gage height, 5.94 

feet); minimum, 4.5 second-feet Oct. 10, 12.

1911-42: Maximum discharge observed, 2,550 second-feet Jan. 23, 1914 (gage height, 

10.0 feet, site and datum then in use), from rating curve extended above 490 secondfeet; practically no flow Aug. 23 to Sept. 14, 1931, and no flow part of day Sept. 9, 

10, 1934.

Remarks.- Records excellent except those for July 4 to Sept. 30, which are good. Several 

small diversions above station. Storage in Calaveras Reservoir (capacity, 1,740 acrefeet), 6 miles above station, began In January 1940. At times as much as 12 secondfeet is diverted to South Fork of Mokelumne River above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

6.5 

6.5 

6.5 

6.5 

6

5.5 

5.5 

6 

5 

5

5 

5 

6.5 

6 

6

6.5 

6 

6.5 

6.5 

7

9 

8.5 

7.5 

7.5 

8

8.5 

9 

10 

9 

9 

8.5

Nov.

10 

22 

16 

23 

29

11 

10 

9 

9.5 

11

14 

14 

14 

14 

14

18 

15 

10 

9.5 

9

9 

9 

9 

9 

9

9 

9 

10 

13 

14

Dec.

13 

16 

71 

26 

19

16 

14 

23 

44 

55

75 

74 

74 

82 

86

104 

97 

88 

64 

24

24 

20 

30 

24 

20

20 

44 

104 

109 

100 

57

Jan.

39 

30 

27 

25 

24

23 

52 

S3 

52 

42

36 

34 

31 

32 

29

26 

26

36 

41 

41

40 

51 

92 

283 

626

569 

1,140 

652 

39S 

287 

234

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Feb.

201 

232 

272 

294 

387

474 

446 

342 

282 

243

214 

195 

187 

178 

170

164 

159 

155 

149 

144

144 

148 

140 

139 

135

132 

128 

125

lendar year 1941 

a.ry

1. ......... ........ ...............

ember. ..... .... . ... ........... .

ter year 1941-42 . . ........ ......

Mar.

121 

120 

115 

112 

109

108 

106 

103 

103 

103

126 

132 

12S 

132 

133

130 

126 

125 

123 

118

115 

115 

92 

55 

55

52 

51 

51 

48 

47 

47

Apr.

48 

50 

64 

166 

247

232 

208 

197 

195 

214

223 

214 

227 

420 

314

292 

296 

275 

256 

243

234 

232 

225 

208 

199

191 

204 

208 

187 

191

May

254

214 

201 

193 

189

180 

182 

185 

187 

178

208 

206 

193 

187 

247

245 

225 

212 

208 

210

218 

223 

214 

201 

260

239 

229 

210

195 

1S5 

170

forays »«* 

214.5 10 

3S2.0 29 

1,617 109

26,392.0 41S

5,101 1,140 

5,979 474 

3,101 133 

6,460 420 

6,498 289 

3,027 162 

989 50 

523 22 

339.0 17

34,230.5 1,140

Peak discharge.- Jan. 25 (6 a.m.) 767 sec. -ft.; Jan c.7 (11 a.m.

June

162

159 

155 

149 

146

142 

139 

132 

125 

121

116 

110 

109 

102 

99

95 

89 

85 

82

79

75 

71 

68 

65 

64

63 

61 

57 

55 

52

Minimum

5 

9 

13

5

23 

125 

47 

48 

170 

52 

20 

13 

9

5

July

50 

47 

46 

44 

40

39 

38 

38 

36 

34

34 

34 

34 

36 

34

34

31 

30 

29 

29

27 

26 

24 

24 

22

22 

22 

21 

22 

22 

20

Aug.

20 

22 

22 

20 

20

19 

18 

17 

IS 

18

19 

19 

18 

17 

16

16 

16 

16 

16 

14

15 

15 

15 

15 

15

15 

15 

15 

15 

14 

13

Mean

6.92 

12.7 

52.2

73.7

165 

214 

100 

215 

210 

101 

31.9 

16.9 

11.3

93.8

1,560 sec. -ft.; Feb.

Sept.

13 

12 

13 

13 

12

12 

12 

12 

17 

16

14 

13 

12 

12

11

10 

10 

10 

9.5 

9.5

9.5

9.5 

9 

9 

9.5

9.5

9.5 

9.5 

10 

11

Runoff in 

acre-feet

425 

758 

3,210

53,340

10,120 

11,860 

6,150 

12,810 

12,890 

6,000 

1,960 

1,040 

672

67,900

6 (11 a.m.)

514 sec.-ft.; Apr. 14 (4 a.m.) 523 sec.-ft.

Time basis: Pacific standard time prior to i, 

To convert war time to standard time, subtract
252 MOKELUMNE RIVER BASIN

South Fork of MoKelumne River near West Point, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°22', long. 120°C3', In SWi 

sec. 16, T. 6 II., R. 13 E., 600 feet downstream from Sawyer Bridge, 2 miles upstream 

from Middle Fork, and 2i miles southwest of West Point. Altitude of gage, about 2,000 

feet (from topographic map).

Drainage area.- 73.8 square miles.

Records available.- October 1933 to September 1942.

Extremes.- Maximum discharge during year, 2,700 second-feet Jan. 27 (gage height, 8.55 

feet); minimum, 10 second-feet Oct. 4.

1933-42: Maximum discharge, 3,600 second-feet Feb. 22, 1936 (gage height, 8.90 

feet), from rating curve extended above 710 second-feet; no flow Aug. 6, 7, Aug. 12 

to Sept. 26, 1934.

Remarks.- Records excellent except those for Oct. 1-20, July 23 to Aug. 3, and Sept. 9-30,

which are good. Small diversions above station. At times as much as 12 second-feet

Is diverted from the Middle Fork Into the South Fork above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

11

11

11

11

12

13

13

13

13

13

13

13

13

13

13

13

13

13

13

17

16

16

15

15

15

17

18

16

16

15

Nov.

18

32

21

17

16

15

14

13

13

13

14

14

14

14

14

18

18

15

15

14

14

14

14

14

14

14

13

13

16

22

Dec.

17

20

109

48

31

25

22

20

20

22

' 20

18

18

36

61

88

65

45

39

41

46

38

50

41

36

38

75

187

230

204

117

Jan.

75

58

51

50

48

41

63

125

91

78

72

71

69

68

66

62

57

54

51

48

47

58

105

362

906

778

1,670

951

544

368

290

Feb.

250

294

328

387

544

705

651

475

373

311

269

242

216

196

Mar.

99

98

95

94

94

96

96

96

98

102

174

196

177

190

177 | 190

165

152

144

134

126

132

137

119

119

114

109

105

101

_

_

-

Month

October ....................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January ....................................

February ...................................

March.. ....................................

April.. .................................

May........................................

June .......................................

July. ......................................

August ......................................

September. ................... .............

Water year 1341-42 ......................

Peak discharge.- Jan. 25 (4:30 a.m.) 1,35

174

168

168

160

149

141

139

137

134

128

121

117

114

112

112

117

Apr.

119

123

160

319

328

298

273

257

254

277

273

265

273

566

420

382

387

346

319

307

302

302

281

257

250

238

250

250

230

230

~

Secondfoot-days

425

470

1,827

35,490

7,377

7,075

4,086

6,536

7,646

3,064

1,303

707

525

43,041

May

333

265

250

242

234

230

234

234

234

224

265

246

227

224

286

277

261

254

250

250

250

246

230

216

294

298

250

230

216

206

190

Maximum

18

32

230

875

1,670

705

196

566

333

180

60

30

21

1,670

sec. -ft.; Jan. 27 (10

June

160

174

163

154

146

137

130

123

117

114

109

104

101

98

95

91

87

84

81

80

77

77

75

73

69

69

67

65

63

61

-

Minimum

11

13

17

11

41

101

94

119

190

61

29

19

15

11

July

60

57

55

51

51

50

50

48

46

46

46

45

45

44

41

40

40

41

41

40

39

38

36

35

34

32

31

31

31

30

29

Aug.

29

30

30

29

26

26

25

24

23

22

23

25

24

24

22

23

22

22

22

20

20

20

20

20

21

20

19

19

19

19

19

Mean

13.7

15.7

58.9

97.2

238

253

132

285

247

102

42.0

22.8

17.5

lie

a.m.) 2,700 sec. -ft.;

Sept.

18

19

20

21

21

20

20

19

19

19

21

20

19

18

17

17

17

16

16

16

16

16

15

15

15

15

15

15

15

15

~

Runoff in 

acre-feet

843

932

3,620

70,390

14,630

14,030

8,100

16,930

15,170

6,080

2,580

1,400

1,040

85,360

Feb. 6

(9 a.m.; 780 sec.-ft.; Apr. 4 (4 a.m.) 396 sec.-ft.; Apr. 14 (5 a.m.) 774 sec.-ft.; Hay 25 (9 p.m.) 

430 aec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1342; Pacific war time thereafter. 

To convert wa'r time to standard time, subtract 1 hour.
MOKELUMNE RIVER BASIN 253

Woodbridge Canal at Woodbridge, Calif.

Location.- Differential water-stage recorder and gate-opening recorder, lat. 38°09'10", 

 long. 121°18'00", in SEi sec. 34, T. 4 N., R. 6 E., at Woodbridge at point of diversion. Datum of gage is 32.18 feet above mean sea level (levels by East Bay Municipal 

Utility District).

Records available.- April 1926 to September 1942.

Average discharge.- 16 years, 105 second-feet.

Extremes.- Maximum daily discharge during year, 351 second-feet July 31; no flow Nov. 17

1926-42: Maximum daily discharge, 383 second-feet Aug. 6, 1941; no flow during 

part of each year.

Remarks.- Records excellent except those for Nov. 15, 16, and May 2-4, 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.

Day

1

2

3

4

5

6

7

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.

208

202

183

166

158

177

202

205

200

191

184

174

167

180

175

169

170

171

167

156

168

167

166

148

143

140

93

83

85

85

90

Discharge, in second-feet, water year October 1941 to September 1942

Nov.

98

84

51

27

27

27

50

73

76

73

76

56

44

58

43

13

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Dec. Jan. Feb. Mar. Apr. May

0

3.8

2.0

51

110

110

130

135

138

152

158

147

146

147

156

164

159

180

200

217

233

251

252

241

194

187

213

220

223

212

228

June

244

253

270

288

285

295

278

281

281

279

294

297

289

273

273

270

270

258

283

276

237

279

299

289

265

297

299

288

295

299

-

July

336

350

341

334

322

324

321

320

337

336

348

328

331

309

278

203

188

314

309

279

309

309

323

324

324

318

314

318

331

343

351

Aug.

345

320

309

340

339

341

332

327

305

270

308

322

330

315

294

260

248

271

310

307

300

276

270

243

255

270

277

277

266

241

231

Sept.

280

289

295

276

260

243

230

252

274

258

266

236

210

208

257

265

257

258

246

218

231

238

235

225

222

205

202

190

205

189

-

Month

Water year 1941-42 ... ... ......... ....

Secondfoot-days

4,973

876

0

47,783

0

0

0

0

4,959.8

8,404

9,772

9,099

7,220

45,303.8

Maximum

208

98

0

383

0

0

0

0

252

299

351

345

295

351

Minimum

83

0

0

0

0

0

0

0

0

237

188

231

189

0

Mean

160

29.2

0

131

0

0

0

0

160

280

315

294

241

124

Runoff in 

acre-feet

9,860

1,740

0

94,780 '

0

0

0

0

9,840

16,670

19,380

18,050

14,320

89,860

Time basis; 

To convert wai

Pacific standard time prior to 2 a.m., 

time to standard time, subtract 1 hour

Feb. 9, 1942; Pacific war time thereaftc
254 MOKELUMNE RIVER BASIN 

Cosumnes River at Michigan Bar, Calif.

Location.- Water-stage recorder, lat. 38°30'00", long. 121°02'45", in SEi sec. 36, T. 0 N. 

R. 8 E., at highway bridge at Michigan Bar, 5^ miles southwest of Latrobe and 12 miles 

downstream from confluence of North and Middle Forks. Altitude of gage, about 190 

feet (from topographic map).

Drainage area.- 537 square miles.

Records available.- October 1907 to September 1942.

Average discharge.- 35 years, 471 second-feet.

Extremes.- Ilaximum discharge during year, 24,500 second-feet Jan. 27 (gage height, 11.28 

feet); minimum, 5.5 second-feet Oct. 7 and 8.

1907-42: Maximum discharge, 26,200 second-feet, Mar. 31, 1940 (gage height, 11.66 

feet), from rating curve extended above 10,000 second-feet; no flow during part of 

1908, 1918, 1919, 1924-26, 1931, 1934, 1939.

Flood in March 1907 reached a stage of 16.3 feet (discharge not computed).

Remarks.- Records excellent except those for period Jan. 4-8, which are good. Diversions 

above station for irrigation.

Rating table,

1.9 

2.1 

2.3 

2.5

2.7

ater year 1941-42 (gage height, in feet, and discharge, in 

second-feet)

2.9 

3.1 

3.4 

3.7 

4.0

144

204

326

490

710

4.4 

4.8

1,090

1,610

5.2 2,210

5.6 2,930

6.0 3,790

6.5

7.0

7.5

8.0 10,600

9.0 14,700

5,100

6,780

8,600

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

8

8

7.5

7

6

6

6.5

6.5

7.5

8

8.5

9

9.5

10

10

15

17

17

20

19

14

21

24

30

30

43

42

36

41

43

36

Nov.

35

42

150

125

86

65

55

50

44

41

39

37

38

36

36

39

59

76

68

57

47

44

43

43

42

42

48

48

44

51

-

Dec.

64

70

584

645

268

182

142

120

107

101

101

92

88

125

256

448

766

408

351

326

336

289

294

351

268

272

303

771

1,050

1,740

1,000

Jan.

630

448

371

326

289

264

876

686

638

588

478

460

448

442

430

425

408

398

371

351

331

331

466

8,330

5,980

5,370

14,100

8,600

4,160

2,910

2,130

Feb.

1,780

1,810

8,890

3,340

4,330

6,450

6,380

3,860

8,850

2,260

1,860

1,600

1,400

1,840

1,110

1,080

930

871

886

766

774

1,040

790

750

774

694

668

628

-

_

-

Mar.

585

578

570

548

548

548

555

555

568

592

,210

,110

,060

,210

,440

1,090

960

900

871

799

758

734

718

710

686

654

622

608

592

600

622

Apr.

646

662

799

1,930

1,680

1,530

1,340

1,250

1,210

1,860

1,280

1,810

1,300

3,210

2,110

1,860

2,150

1,760

1,610

1,530

1,460

1,440

1,380

1,260

1,190

1,140

1,210

1,380

1,150

1,070

-

May

1,930

1,440

1,880

1,280

1,200

1,160

1,160

1,200

1,210

1,150

1,480

1,610

1,880

1,190

1,370

1,610

1,460

1,480

1,390

1,400

1,460

1,470

1,430

1,330

1,680

2,240

1,580

1,390

1,220

1,130

1,040

June

991

960

940

910

900

910

880

886

782

766

734

710

678

654

638

600

548

588

503

478

436

408

387

371

361

351

331

308

285

272

-

July

256

244

233

222

204

194

185

- 175

166

158

152

144

137

134

134

127

120

114

110

105

101

95

92

85

79

76

70

68

67

65

62

Aug.

59

58

57

55

52

50

47

48

43

41

39

39

41

43

41

38

38

37

35

30

30

29

28

27

26

26

25

26

30

27

26

Sept.

25

25

24

24

23

22

23

22

23

22

22

23

24

22

23

23

18

19

18

18

21

17

17

17

17

17

17

17

17

18

-

Month

May. ........... .................. ........

Water year 1941-42 ......................

Secondfoot-days

566.0

1,618

11,918

53,619

43,007

43,130

4,174

1,191

618

257,233

Maximum

43

150

1,740

2,240

256

59

25

14,100

Minimum

6

.35

64

264

622

548

646

1,040

62

25

17

6

Mean

18.3

384

1,786

1,391

135

38.4

20.6

705

Runoff in 

acre-feet

1,120

3,210

23,640

106,400

46,800

85,300

85,550

8,280

2,360

1,230

510,200

Peak discharge.- Jan. 25 (7 a.m.) 7,370 sec.-ft.; Jan. 27 (9:30 a.m.) 24,500 sec.-ft.; Feb. 6 

(7 p.m.) 9,000 sec.-ft.; Apr. 14 (7:30 a.m.) 4,600 sec.-ft.; May 1 (9 a.m.) 2,780 sec.-ft.; May 26 

(1 a.m.) 2,840 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
GOOSE LAICE BASIN 25o 

Drew Creek near Lakevlew, Oreg.

Location.- Water-stage recorder, lat. 4£°07', long. 1£0°35', in HWi sec. 10 or SWi sec. 

3, T. 40 S., P.. 18 E., at highway bridge, It miles downstream from Willow Creek, 2 

miles downstream from Drew Creek Dam, and 13 miles southwest of Lakeview. Prior to 

Oct. 28, 1941, staff gage at site 1 mile upstream.

Drainage area.- 211 square miles.

Records available.- January 1909 to September 1921 and October 1925 to September 1942 in 

reports of U. S. Geological Survey. January 1909 to September 1936 in reports of 

State engineer.

Average discharge.- 24 years (1909-30, 1937-38, 1939-41), 65.5 second-feet, Including 

diversion by North Drew Canal.

Extremes.- Maximum discharge observed during year, 430 second-feet Apr. 15 (gage height, 

4.06 feet); minimum discharge observed, 3.3 second-feet Oct. 2B (gage height, 0.82' 

foot).

1909-42: Maximum discharge, 3,000 second-feet liar. 1, 2, 1910, from rating curve 

extended above 1,200 second-feet; no flow at times.

Remarks.- Records good. No gage-height record Oct. 1 to June 8 except readings when discharge measurements were made. Considerable regulation caused by Drew Creek Reservoir, 

2 miles above station. Since March 1914 North Drew Canal of Lakevlew Water Users, 

Inc., has diverted water around station. (See following page.)

Rating table, Oct. 2S, 1941, to Sept. 30, 1942 (gage height, in feet, 

and discharge, in second-feet)

0.9 4.7

1.0 7.0

1.1 10

1.3 

1.5 

1.7

2.0 

2.3 

2.6

69

101

139

3.0 200

3.5 293

4.0 420

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

-

-

-

-

-

_

-

-

-

-

_

-

_

-

_

-

-

-

h35

_

-

-

-

-

_

-

h33

-

-

-

Nov. Dec. Jan. Feb.

h317

_

-

Mar. Apr.

h438

May

n!79

-

-

-

n!79

_

-

_

-

-

_

-

_

-

_

-

-

-

-

-

-

-

-

-

_

h!71

-

-

_

-

June

_

-

-

h239

-

_

-

-

h!47

h!47

h!47

hi 47

h!47 

h!39

hllS

hl!3

hill

hlOl

h99

h99

h99

99

98

98

99

98

92

89

83

82

-

July

81

81

81

81

80

80

79

79

78

78

77

77

76 

76

75

75

75

75

75

75

75

75

68

68

68

68

67

66

62

58

58

Aug.

42

39

37

37

37

37

37

44

54

55

59

60

63 

63

63

63

62

61

62

61

61

61

61

60

60

60

60

59

59

59

58

Sept.

48

44

45

45

45

44

44

45

43

38

35

35

35 

35

35

35

34

35

35

34

34

34

34

34

34

34

34

34

32

17

-

Month

May. ................................ .....

The period. ...

Secondfoot-days

-

..

_

-

2,452

2,287

1,694

1,110

-

Maximum

-

_

-

147

81

63

48

-

Minimum

-

_

_

-

82

58

37

17

-

Mean

-

-

-

_

-

Ill

75 . 8

54.6

37.0

-

Runoff in 

acre- feet

_

-

_

.,

-

4,860

4,540

3,360

2,200

14,960

h Computed from staff-gage reading.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 19.42; 

To convert war time to standard time, subtract 1 hour.

Pacific war tine the
266 GOOSE LAKE BASIN

Monthly discharge, of North Drew Canal near Lakeview 

to September 1942

dreg., water year October 1941

Month

December ..................................

Calendar year 1941 ......................

September. .................................

Water year 1941-42 ......................

Secondfoot-days

0

0

0

5,227

0

0

0

0

190.3

1,200

1,555

1,569

921

5,435.3

Maximum

0

0

0

63

0

0

0

0

22

50

56

57

48

57

Minimum

0

0

0

0

0

0

0

0

0

23

47

48

13

0

Mean

0

0

0

14.3

0

0

0

0

6.14

40.0

50.2

50.6

30.7

14.9

Runoff in 

acre-feet

0

10,370

0

0

0

377

3,080

1,830

10,780

Monthly gage height and contents of Drew Creek Reservoir near Lakeview, Oreg 

water year October 1941 to September 1942

Date

The period. .............

Gage height 

(feet)

51 4

-

Contents 

(acre-feet)

47 730

-

Change in contents 

(acre-feet)t

+23 890

J-22,610

t Change in contents since preceding measurement.

j Change in contents during period Sept. 30, 1941, to Sept. 5, 1942. 

Note.- Maximum contents observed during year, 60,730 acre-feet June 9 (gage 

height, 54.6 feat); stage was probably higher prior to June 9.
GOOSE LAKE BASIN 857

Cottonwood Creek near Lakeview, Oreg.

Location.- Water-stage recorder, lat. 42°14', long. 120°30', in SW} sec. 29, T. 38 S.,

 R. 19 E., 200 yards downstream from Cottonwood Reservoir and 10 miles northwest of 

Lakeview.

Drainage area.- 30 square miles.

Records available..- Novenber 1908 to September 1919 and October 1925 to September 1942

 in reports of tr. S. Geological'Survey. November 1908 to September 1919 and October 

1924 to September 1936 in reports of State engineer.

Average discharge.- 25 years (1909-19, 1924-35, 1938-42), 19.8 second-feet.

Extremes.- Maximun discharge during year, 117 second-feet Apr. 15 (gage height, 3.28

 feet; mirinum recorded, 1.4 second-feet Nov. 19 (gage height, 1.33 feet).

1908-19, 1924-42: Maximum discharge, between 500 and 1,000 second-feet during 

period Apr. 2§ to May 1, 1927, when natural flow, estimated as 170 second-feet, was 

au:iiented by water escaping from reservoir through break in outlet conduit above 

control gate; no flow at tines.

Remarks.- Records good except those for period of no gage-height record, which are poor.

 Since 1923 considerable regulation caused by Cottonwood Reservoir 200 yards above 

station.

Rating table, water year 1941-42 (gage height, In feet, and discharge, 

in second-feet)

Oct. 1 to Apr. 9

2.4 2S

2.5 25 

Note.- Same as 

following table 

below 2.4 feet.

2.0

4.2

7.2

12.0

Apr. 10 to Sept. 

2.2 IS

2.4 

2.6 

2.8

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2.3

2.3

2.3

2.3

2.3

2.3

2.2

2.2

2.2

2.1

2.1

2.1

2.1

21

37

36

36

34

33

32

31

29

28

25

22

15

6.1

3.S

3.0

2.7

2.9

Nov.

4.6

4.6

4.1

4.9

3.8

3.2

2.9

2.S

2.7

2.7

2.7

2.7

2.7

3.2

3.8

5.3

3.S

3.1

2.7 11

 2.7

j

Dec.

' 2.7

i

Jan.

 2.6

Feb.

' 2.5

1 _

-

-

Month

October. ...................................

November ...................................

December. ..................................

Calendar year 1941 ......................

Janu 

Febr

ary.. ..................................

larv . . March. .....................................

April. .....................................

Mnv may ........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

V

 2.4

>

2.4

2.5

2.5

9.5

2.6

Apr.

2.7

2.7

2.6

2.7

2.8

2.9

2.9

3.0

3.1

20

53

54

55

56

SS

115

102

92

92

79

55

51

39

39

39

39

39

39

39

39

-

Secondfoot-days

426.3

96.0

83.7

5,646.1

SO. 6 

70.0

74.9

1,249.4

1,293

1,769

1,050

516.0

64.5

6,-773.4

May

39

39

3S

38

3S

3S

3S

38

37

36

35

35

35

35

35

35

35

35

35

35

35

35

35

35

36

3S

41

49

70

SS

102

Maximum

37

5.3

95

-

2.6

115

102

102

45

35

2.S

115

June

102

102

102

84

59

55

47

47

49

49

48

4S

49

48

53

60

60

60

60

60

60

60

58

57

57

56

55

46

39

39

-

Minimum

2.1

_

1.6

-

_

2.6

35

39

30

2.5

1.7

1.7

July

45

34

31

31

30

30

30

30

30

30

30

30

31

31

31

31

32

32

32

36

35

36

40

39

39

39

39

38

37

36

35

Aug.

35

34

33

33

2S

21

20

20

20

19

19

19

18

18

IS

IS

17

16

16

15

14

14

12

11

7.2

5.8

4.6

2.7

2.7

2.5

2.5

Mean

13.8

3.20

2.70

15.5

2.60 

2.50

2.42

41.6

41.7

59.0

33.9

16.6

2.15

18.6

Sept.

2.5

2.5

2.5

2.3

2.4

2.4

2.4

2.4

2.5

2.S

2.6

2.&

2.5

2.3

2.2

2.1

2.0

.0

.9

.9

.9

.8

.8

.8

.8

.8

.7

.7

.8

.7

-

Runoff in 

acre feet

S46

190

166

11,200

160 

139

149

2,4SO

2,560

3,510

2,080

1,020

128

13,430

Note.- No gage-height record Nov. 21 to Mar. 26; discharge interpolated on assumption that it 

consisted only of leakage from reservoir.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
258 SACRAMENTO RIVER BASIN 

SACRAMENTO RIVER MAIN STEM 

Sacramento River at Kennett, Calif.

Location.- Water-stage recorder, lat. 40°44', long. 122°24', In SWi sec. 2, T. 33 II.,

 R. 5 W., at highway bridge at Kennett. Datum of gage Is 618.44 feet above mean sea 

level, adjustment of 1912. Datum of gage Is 2.00 feet lower than wire-weight gage 

of U. S. Weather Bureau at sane location.

Drainage area^- 6,600 square miles, excluding Goose Lake Basin.

Records available.- November 1925 to November 1942; discontinued.

Average discharge?- 16 years (1926-42), 7,056 second-feet.

Extremes.- 1941-42: Maximum discharge during year, 85,300 second-feet Feb. 6 (gage

 Keif'ht, 22.90 feet); minimum, 3,540 second-feet Oct. 3 (gage height, 1.66 feet).

1925-42: Maximum discharge, 182,000 second-feet Feb. 28, 1940 (gage height, 38.2 

feet), from rating curve extended above 70,000 second-feet on basis of velocity-area 

studies and logarithmic plotting; minimum, 2,290 second-feet Oct. 4, 1934.

Remarks.- Records excellent. Flow retaliated by storage and nany diversions in Pit River 

Basin -

Discharge, In second-feet, 1941-42 

1941-42

Day

1

2

3

4

5

6

7

a

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

£4

25

26

27

28

29

30

31

Oct.

4.120

4.02C

3,950

3,750

3,630

3,720

4,010

4,020

4,020

4,060

3.860

3,810

3,880

4,110

4,080

4,070

4,060

3,920

3,750

3,920

4,150

4,140

4,060

4,110

3,850

3,840

4,540

4,540

4,370

4, £90

4,250

Nov.

4,140

4,240

4,340

4.670

4,530

4,420

4,240

3,940

3,920

4,110

4,370

4,250

4,210

4,850

4,920

4,750

4,440

4,450

4,370

4,320

4,290

4.080

3.900

3,930

4,160

4,180

4,180

4,200

4,460

6,040

Dec.

5,190

14,400

20,000

9,870

7,860

6,730

6,090

5,620

5,530

5,560

5,410

5,280

8,010

21,100

40,600

63,600

33,600

40,100

36,200

32,700

23,500

18.700

16,000

13,900

12,100

11,200

10,700

10,800

11,500

11,200

10,300

Jan.

9,490

8,620

8,180

7,900

7,610

7,450

8,160

9,930

9,870

9,560

9,320

9,340

8,990

8,720

8,560

8,560

8,400

8,100

7,780

7,540

7,300

9,320

23,200

44,700

48,900

48,500

64,900

45,600

34,800

E8.900

24,900

Feb.

26,700

50,200

52,100

71,200

59.900

77,800

60,900

47,300

36,900

30,000

25,200

21,900

19,600

17,500

15,500

15,400

14,000

13,100

12,300

11,900

11,500

10,900

10,500

10,900

10,400

10,000

9,740

9,360

.

-

-

Mar

9,220

9,040

9,140

8,960

8,880

8,920

8,340

8,400

8,840

8,880

9,260

9,740

10,300

10,700

10,000

10,300

9.820

9,490

9,360

9,060

8,820

8,270

8,880

8.540

8,410

8,230

8,090

7,980

7,970

7,340

8,140

Apr.

6,340

8,090

8,660

12,400

17,500

15,100

13,200

12,300

12,000

11,900

11,600

11,700

13,000

21,200

24,700

22,200

23,600

23,700

20,600

18,600

16,800

15,800

14,400

13,400

12,700

12,000

12,600

12,600

11,700

12,200

-

Hay

12,500

11,700

10,900

11,000

10,400

10,200

10, 200

10,500

11,000

10,100

10,700

10,000

9,600

9,470

9,890

9,850

9,710

9,710

9,780

10,200

10,900

11,600

10,800

10,500

18,900

16,600

13,700

13,000

12,200

11,500

11,100

June

10,900

11,100

10,800

10,400

10,200

10,300

9,690

9,320

9,060

8,820

8,680

8,320

7,820

7,550

7,170

6,950

6,850

7,220

7,220

6,580

6,280

6,150

6,410

6,300

6,090

5,990

5,740

5,540

5,460

5,700

-

July

5,660

5,300

5,520

5,320

5,200

5,230

5,470

5,470

5,420

5,140

,850

,740

,560

,970

,990

,020

,010

,850

,530

,440

,810

,810

,770

,630

,400

,140

,270

,530

,460

,490

,550

Aug.

4,350

4,040

4,050

4,360

4,390

4,350

4,440

4,100

3,930

3,920

4,390

4,330

4,220

4,200

3,910

3,770

4,090

4,090

4,150

4,320

4,180

3,930

3,800

3,770

4,100

4,190

4,220

4,270

4,100

3,840

3,830

Sept.

4,230

4,230

4,160

4,040

3,840

3,810

3,720

4,140

4,230

4,230

4,190

3,900

3,730

3,680

4,090

4,060

4,100

4,140

3,920

3,680

3,730

4,050

4,190

4,020

3,870

3,750

3,710

3,780

4,150

4,140

"

Peak discharge.- Dec. 3 (12:30 a.m.) 28,500 sec.-ft.; Dec. 16 (11 a.m.) 75,500 sec.-ft.; Jan. 24 

(9 p.m.) 61,800 sec.-ft.; Jan. 27 (9 a.m.) 71,000 sec.-ft.; Feb. 4 (3:30 p.m.) 79,900 sec.-ft.; 

Feb. 6 (8 a.m.) 85,300 sec.-ft.

1942

Day

1

2

3

4

5

6

7

8

9

10

Oct.

4,050

3,910

3,690

3,670

3,730

4,100

4,100

3,910

3,920

3,800

Nov.

3,850

3,810

4,230

4,360

4.230

4,230

4,010

-

_

-

Day

11

12

13

14

15

16

17

18

19

20

Oct.

4,010

4,110

4,160

4,190

4,200

4,100

4,010

3,870

3,850

4,100

Nov.

_

-

-

-

-

-

_

-

_

_

Day

21

22

23

24

25

26

27

28

29

30

31

Oct.

4,100

4,220

4,270

3,910

3,770

3,810

4,160

4,300

4,140

4,100

3,920

Nov.

_

-

-

-

-

-

-

-

-

-

-

nthly discharge second-feet, 1941-42

Month

Novembe r ....................... ... ....

January 1942 .................... ........ .

April. ......................................

July.. ......................................

September ....................... ..........

October 1 942. ............................... 

Novr-mbor 1-7. ...............................

Secondfoot-day^

4,340,540

553,100

762,700

277,620

444,590

348,210

234,610

152,050

127,630

119,610

3,799,340

124,180 

28,720

Maximum

66,400

64,900

24,700

18,900

11,100

5,800

4,440

4,280

4,300 

 3,3<")

Minimum

3,630

7,300

8,090

5,460

4,140

3,770

3,680

3.67C 

3,010

Mean

11,890

17,840

14,820

4,905

4,117

3.9R7

4,005 

4,103

Runoff in 

acre-feet

8,610,000

1,097,000

881,800

301,600

253,200

237,200

246,300 

56,970

standard time pr 

standard timb, a

to 2 a.m., Feb. 9, 194P; Pacific
SACRAMENTO RIVER MAIN STEM 259

Sacramento River at Keswick, Calif.

Location.- Water-stage recorder, lat. 40°37', long. 122°27', in SEiSEi sec. 17, T. 32 N., 

 R. £ W., at Keswick, half a mile downstream from Spring Creek and 9 miles downstream

from Shasta Dam, now under construction. Datum of gage is 495.0 feet above mean sea

level (levels by Bureau of Reclamation).

Drainage area.- 6,700 square miles (excluding Goose Lake Basin).

Records available.- October 1938 to April 1942 (temporarily discontinued).

Extremes.- Maximum discharge during period, 85,000 second-feet Feb. 6 (gage height, 32.20 

feet; minimum, 3,760 second-feet Oct. 5.

1938-42: Maximum discharge, 186,000 second-feet Feb. 28, 1940 (gage height, 47.2 

feet), from rating curve extended above 75,000 second-feet on basis of peak discharge 

at Kennett plus 4,000 second-feet estimated inflow; minimum, 2,730 second-feet Aug. 22, 

1939.

Remarks.- Records good. Flow regulated by storage reservoirs and many diversions above, 

station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

4,240

4,200

4,110

3,940

3,790

3,820

4,120

4,170

4,170

4,210

4,060

3,960

4,010

4,240

4,240

4,240

4,240

4,100

3,890

3,980

4,290

4,280

4,200

4,210

4,020

3,920

4,680

4,720

4,540

4,440

4,420

Nov.

4,300

4,400

4,460

4,850

4,720

4,590

4,440

4,160

4,070

4,220

4,500

4,410

4,350

4,960

5,200

4,960

4,560

4,630

4,520

4,460

4,410

4,240

4,020

4,040

4,300

4,320

4,320

4,350

4,730

6,370

-

Dec.

5,480

12,700

20,400

10,500

8,360

7,110

6,440

5,830

5,710

5,770

5,620

5,470

7,880

19,300

37,200

65,400

36,900

39,900

37,000

33,900

24,400

19,500

16,600

14,300

12,600

11,500

11,100

11,300

12,100

11,800

10,900

Jan.

10,000

9,140

8,580

8,280

7,970

7,790

8,300

10,100

10,200

9,900

9,650

9,610

9,320

9,060

8,830

8,810

8,660

8,380

7,960

7,790

7,490

8,740

22,300

45,400

53,200

47,600

66,900

48,400

35,600

28,900

24 , 400

Feb.

25,300

51,200

53,300

73,800

62,600

78,400

62,800

48,700

37,80.0

30,500

25,500

22,200

19,900

17,800

16,000

15,400

14,100

13,300

12,600

12,100

11,700

11,200

10,600

11,000

10,600

10,200

9,980

9,660

-

-

-

Mar.

9,390

9,240

9,410

9,180

9,100

9,010

8,530

8,660

8,860

9,030

9,370

9,700

10,200

10,600

10,000

10,100

9,860

9,480

9,440

9,140

8,890

8,380

8,870

8,650

8,530

8,340

8,160

8,060

7,950

7,840

8,130

Apr.

8,380

8,090

8,340

11,900

17,600

15,700

13,900

13,000

12,600

12,500

12,300

12,300

12,600

19,400

24,100

21,500

22,800

23,400

20,500

18,400

16,900

15,900

14,700

13,800

13,200

12,600

12,900

13,100

12,200

12,600

-

May June July Aug. Sept.

Month

March. ................................

April. .....................................

May............ ..... .....................

June. .............. . ... ......... . .

July. ..... ............ . ...... ......

The period . ................ ...........

Peak discharge.- Dec. 3 (3 a.m.) 26.600 s

(11:30 p.m.) 65,200 sec. -ft.; Jan. 27 (10 a 

Feb. 6 (9 a.m.) 85,000 sec. -ft. 

Time basis: Pacific standard time prior 

To convert war time to standard time, subtr

Secondfoot-days

129,450 

135,860 

532,970

4,454,140

567,260 

778,240 

280,100 

447,210

-

Maximum

4,720 

6,370 

65,400

69,300

66,900 

78,400 

10,600 

24,100

-

Minimum

3,790 

4,020 

5,470

3,790

7,490 

9,660 

7,840 

8,090

-

Mean

4,176 

4,529 

17,190

12,200

18,300 

27,790 

9,035 

14,910

-

Runoff in 

acre-feet

256,800 

269 , 500 

1,057,000

8,834,000

1,125,000 

1,544,000 

&&&.600 

887,000

5,695,000

ec.-ft.; Dec. 16 (2:30 p.m.) 74,900 sec. -ft.; Jan. 24 

.ra.) 71,600 sec. -ft.; Feb. 4 (4 p.m.) 81,800 sec. -ft.;

to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

act 1 hour.
260 SACRAMENTO RIVER MAIN STEM

Sacranento River near Red Bluff, Calif.

Location.- Water-stage recorder, lat. 40°15'55", Ions. 122°10'50", in SEi sec. 54, T. 

2S II., R. 3 W., at lower end of Iron Canyon, half a mile downstream from Sevenmile 

Creek and 4 miles northeast of Red Bluff. Datum of gage is 252.6 feet above mean sea 

level (from river profile survey).

Drainage area.- 9,300 square miles (excluding Goose Lake Basin).

Records available.- January 1902 to September 1942. April 1895 to June 1902 at site at

Jellys Ferry, 12 miles upstream from Red Bluff.

Average discharge.- 47 years, 11,520 second-feet.

Extremes.- Maximum discharge during year, 203,000 second-feet Feb. 6 (gage height, 31.40 

feet); minimum, 3,930 second-feet Sept. 20 and 21 (gage height, 0.89 feet).

1895-1942: Maximum discharge, 291,000 second-feet Feb. 28, 1940 (gage height, 38.9 

feet), from rating curve extended above 200,000 second-feet by logarithmic plotting 

and on basis of velocity-area studies; minimum, 2,400 second-feet Aug. 15, 1931, 

Sept. 9, 1934.

Remarks.- Records excellent. Some storage and many diversions above station.

Rating table.

0.8 

1.0 

1.5

2

3

4

water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

3,760

4,140

6,180

6,340

8,940

11,840

15,120

18,660

23,400

26,500

31,000

35,800

40,800

45,800

56,800

69,000

83,400

96,900

22

24

26

29.3

112,600

129,900

148,200

181,000

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

4,360

4,340

4,300

4,220

4,010

3,990

4,120

4,340

4,340

4,360

4,420

4,260

4,320

4,380

4,540

4,540

4,540

4,500

4,280

4,220

4,420

4,600

4,640

4,540

4,540

4,480

5,180

5,650

5,490

5,250

5,090

Nov.

5,140

5,470

5,680

6,080

5,770

5,470

5,220

5,000

4,730

4,750

4,960

5,090

5,000

5,140

6,030

6,050

5,860

' 5,420

5,310

5,180

5,140

5,030

4,750

4,690

4,790

4,920

4,920

4,960

5,700

8,330

-

Dec.

7,760

14,200

43,000

18,800

11,900

9,610

8,380

7,470

6,990

6,920

6,840

6,590

6,940

28,800

45,400

80,000

63,700

61,600

60 , 600

53,400

39,300

29,600

28,300

23,100

19,900

18,100

17,700

25,300

32,800

24,600

19,200

Jan.

16,300

14,000

12,700

11,800

11,200

10,600

14,800

23,000

18,200

16,100

15,100

14,400

13,900

13,100

12,500

12,400

11,900

11,400

10,800

10,400

9,950

10,500

25,500

65,700

91,100

69,300

100,000

81,500

54,700

43,600

37,000

Feb.

35,800

73,000

78 , 000

101,000

121,000

181,000

120,000

79,300

60,200

48 , 100

39,800

34,200

30,400

27,100

24,800

22,600

21,400

19,900

18,800

17,900

17,100

16,400

15,300

15,600

15,500

14,500

14,000

13,500

_

-

-

Month

October. .............. ....................

November. ............. . . ............... .

December. ...... ......................... .

Calendar year 1941 . .... ........ ......

January ........ ...........................

February ....... ...........................

March. ................ .... ...............

April. ......... ...... . . .................

May ............. ... . ....................

June ..................... .................

July. ............... . . . .................

August ........ ....... ....................

September. . .......... ..... ......... ...

Water year 1941-42 ... ... ..............

Mar.

12,800

12,800

12,600

12,400

12,200

12,100

11,800

11,400

11,400

12,000

12,800

13,300

13,800

14,500

15,000

13,700

13,500

12,900

12,600

12,200

11,800

11,400

11,200

11,400

11,100

10,800

10,600

10,400

10,300

10,100

10,100

Apr.

11,200

10,600

10,700

28,900

32,100

27,200

21,200

18,700

17,500

17,500

17,000

16,400

17,400

32,200

33,200

31,400

35,300

37,600

32,100

27,500

24,700

22 , 600

20,900

19,200

18,000

17,000

17,600

20,800

17,400

16,400

~

Secondfoot-days

140,260

160,580

826,800

6,932,820

863,450

1,276,200

375,000

664,300

472,900

300,570

175,400

139,430

127,560

5,522,450

May

19,400

17,000

16,000

15,300

14,800

14,100

14,000

14 , 200

14 , 200

14,400

14,300

14,100

13,300

12,800

13,300

13,800

13,300

13,000

12,900

13,000

13,800

14,700

14,700

13,800

18,100

25,700

19,500

18,000

16,900

15,700

14,800

Maximum

5,650

8,330

80,000

129,000

100,000

181,000

15,000

37,600

35,700

14,400

6,740

4,960

4,600

181,000

June

14,300

14,400

14,400

13,800

13,200

13,300

12,800

12,200

11,800

11,400

11,100

10,800

10,300

9,750

9,420

8,970

8,660

8,690

8,940

8,690

7,910

7,700

7,760

8,020

7,760

7,440

7,090

6,820

6,590

6,560

Minimum

3,99.0

4,690

6,590

3,990

9,950

13,500

10,100

10,600

12,800

6,560

4,730

4,060

3,950

3,950

July

6,640

6,740

6,690

6,390

6,220

6,100

6,200

6,320

6,240

6,080

5,770

5,610

5,400

5,420

5,740

5,770

5,790

5,720

5,400

5,200

5,290

5,470

5,400

5,330

5,090

4,830

4,730

4,900

4,980

4,960

4,980

Aug.

4,960

4,640

4,520

4,710

4,830

4,790

4,790

4,810

4,460

4,320

4,460

4,750

4,690

4,580

4,540

4,220

4,200

4,520

4,320

4,540

4,580

4,440

4,140

4,060

4,200

4,400

4,500

4,520

4,560

4,240

4,140

Mean

4,525

5,353

26,670

18,990

27,850

45,580

12,100

22,140

15,250

10,020

5,658

4,498

4,252

15,130

Sept.

4,280

4,600

4,560

4,420

4,260

4,080

4,040

4,140

4,520

4,600

4,500

4,420

4,080

4,010

4,120

4,280

4,260

4,280

4,320

4,030

3,950

4,100

4,260

4,400

4,260

4,140

4,030

4,040

4,160

4,420

-

Runoff in 

acre-feet

278,200

318,500

1,640,000

13,750,000

1,713,000

2,531,000

743,800

1,318,000

938,000

596,200

347,900

276,600

253,000

10,950,000

Peak dlacuarge.- Dec. 15 (9:30 p.m.) 99,900 sec.-ft.; Dec. 18 (6 p.m.) 74,100 sec.-ft.; Jan. 24 

(11 p.m.) 101,000 sec.-ft.; Jan. 27 (3 p.m.) 116,000 sec.-ft.; Feb. 2 (3:30 p.m.) 90,100 aec.-ft.; 

Feb. 6 (5:30 a.m.) 203,000 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SACRAMENTO RIVER MAIN STEM 261

Sacramento River at Eutte City, Calif.

Location.- Water-stage recorder, lat. 39°27'35", long. 121°59'35", in NEt sec. 32, T. 19 

N., R. 1 W., half a mile south of Butte City. Zero of gage is set to datum of Corps 

of Engineers, U. S. Army.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to 

 September 1942 in reports of Geological Survey. 1914-17, 1920-21, 1929-42 (gage 

heights for high-water periods only), 1939-42 (discharge), in reports of Division of 

Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 170,000 second-feet Feb. 7 (gage height, 96.87 

feet ), from rating curve extended above 100,000 second-feet; minimum observed, 2,580 

second-feet Aug. 25, 26 (gage height, 70.15 feet).

1940-42: Maximum discharge, that of Feb. 7, 1942.

1921-42: Minimum discharge recorded, 1,050 second-feet July 15, 25, 26, 1931 (gage 

height, 67.49 feet).

Remarks.- Records fair except those above 100,000 second-feet, which are poor. Flow 

regulated by storage, many diversions above station 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 second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

3,560

3,840

3,840

3,930

3,740

3,650

3,560

3,560

3,930

3,930

3,930

4,120

3,930

4,120

4,120

4,310

4,310

4,310

4,310

4,120

4,120

4,220

4,310

4,310

4,310

4,310

4,700

5,120

5,540

5,540

5,330

Nov.

5,330

5,330

5,540

5,540

5,750

5,970

5,750

5,540

5,330

5,220

5,220

5,220

5,330

5,330

5,330

5,750

6,190

6,190

5,750

5,750

5,540

5,540

5,540

5,220

5,020

5,330

5,540

5,750

5,970

6,050

-

Dec.

9,200

8,720

23,100

39,600

19,400

12,800

10,300

9,040

8,090

7,400

7,170

6,940

6,710

12,300

38,100

65,600

96,100

92,000

87,000

87,000

71,100

49,600

36,600

33,000

27,300

24,000

21,800

26,800

50,200

52,000

34,700

Jan.

25,800

20,800

13,100

16,500

15,200

14,300

14,300

28,500

Feb.

48,400

60,600

114,000

120,000

125,000

Mar.

17,100

16,500

16,200

15,600

15,200

148, 000 j 14,900

166,0001 14,600

145.000

30,800 |121,000

24,300

20,800

19,100

18,100

17,100

15,900

15,200

14,600

14,000

13,400

12,500

12,200

11,600

16,800

44,400

94,000

121,000

118,000

126,000

123,000

92,000

59,800

95,000

68,200

54,100

44,900

38,600

34,700

31,200

28,900

26,900

25,800

24,000

22,900

22,200

20,800

19,800

20,100

19,400

18,400

17,800

_

_

-

Month

October. ............................... ...

November. ..................................

December. ................................

Calendar year 1941 .................... .

January. ........ ..........................

February ...... ........ . . .......... .....

March. ...... .......... ....... ..........

April. ......... . ................. .......

May. ............... ............. ...... .

June . . .. . ........ . . ........ .......

July. ........... ...... . .............

August ........ . . ... ............... . . . .

September. . . ........ ...... ... .... . .

Water year 1941-42 ... . . . ........ ...

14,300

14,000

13,700

14,300

14,900

15,600

15,900

16,800

16,800

15,900

15,600

14,900

14,200

14,000

13,700

13,100

13,100

12,800

12,500

12,200

11,900

11,900

11,600

11,300

Apr.

11,300

11,900

11,600

15,600

30,800

38,100

32,100

25,400

22,200

21,200

21,500

20,800

19,800

25,800

36,600

35,600

35,600

39 , 600

40,600

36,100

32,200

29,600

27,700

25,500

23,800

22,700

21,700

22,700

23,800

21,000

-

Secondfoot-days

130,930

167,660

1,071,670

9,565,060

1,188,100

1,681,700

445,100

782,900

540,400

301,260

139,880

91,640

98,400

6,639,640

May

21,300

22,400

20,700

19,700

18,700

18,100

17,400

17,100

17,100

17,100

16,800

17,100

16,500

15,500

14,900

15,500

15,500

14,900

14,500

14,200

14,500

15,200

16,100

15,500

15,500

21,300

24,400

20,000

18,700

17,700

16,500

Maximum

5,540

6,850

96,100

147,000

126,000

166,000

17,100

40,600

24,400

15,500

5,870

3,400

3,860

166,000

June

15,500

15,200

15,200

14,900

14,200

13,900

13,600

13,100

a!2,700

a!2,300

all, 900

11,500

all, 000

alO,600

alO,100

a9,700

a9,200

8,750

8,750

8,750

8,520

6,720

5,450

5,260

5,260

5,070

5,260

6,500

6,290

6,080

-

Minimum

3,560

5,020

6,710

2,660

11,600

17,800

11,300

11 ,300

14,200

5,070

3,400

2,580

2,630

2,&BO

July

5,870

5,870

5,870

5,870

5,450

5,260

5,260

5,070

5,070

5,070

4,880

4,690

4,500

4,330

4,330

4,330

4,330

4,330

4,330

4,160

4,000

3,850

4,000

4,000

3,850

3,780

3,700

3,550

3,480

3,400

3,400

Aug.

3,400

3,400

3,260

3,190

3,190

3,190

3,260

3,260

3,260

2,990

2,920

2,860

2,990

2,990

2,990

2,860

2,860

2,630

2,740

2,740

2,860

2,920

2,860

2,630

2,580

2,630

2,740

2,860

2,860

2,920

2,800

Mean

4,224

5,589

34,570

26,210

38,330

60,060

14,360

26,100

17,430

10,040

4,512

2,956

3,280

18,190

Sept.

2,680

2,630

3,120

3,200

3,030

3,030

3,030

2,870

2,950

3,200

3,380

3,330

3,480

3,200

3,030

3,120

3,290

3,200

3,290

3,380

3,290

3,200

3,290

3,570

3,760

3,860

3,760

3,660

3,760

3,760

-

Runoff in 

acre-feet

259,700

332,500

2,126,000

18,970,000

2,357,000

3,336,000

882,800

1,553,000

1,072,000

597,500

277,400

181,800

195,200

13,170,000

a No gage-height record; discharge interpola 

Time basis; Pacific standard time prior to 2 a.m., Feb. 

o convert war time to standard time, subtract 1 hour.

9, 1942; Pacific war time thereafter.
262 SACRAMENTO RIVER MAIN STEM

Sacramento River at Colusa, Calif.

Location.- Water-stage recorder, lat. 39°12'50", long. 121°59'55", at north end of

Jimeno Grant, Just downstream from highway bridge at Colusa, Colusa County. Zero of 

gage is set to datum of Corps of Engineers, U.S. Army.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to 

September 1942 in reports of Geological Survey. 1920-22, 1924-42 (gage heights for 

high water periods only), and 1939-42 (discharge), in reports of Division of VJater 

Resources, Department of Public Works, State of California.

Extremes.- llaximum discharge during year, 49,000 second-feet Feb. 8 (gage height, 69.20 

feet); minimum, 2,670 second-feet Aug. 26 (gage height, 38.06 feet). 

1940-42: Maximum discharge, that of Feb. 8, 1942.

19C1-42: Minimum discharge recorded, 820 second-feet July 25, 26, 1931 (gsge height, 

34.79 feet).

Remarks.- Records good. Flow regulated by storage, many diversions above station 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.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet)

39.9

42.0

46.0

50.0

56.0

Oct. 1 to June 14

3,700

5,9bO

10,600

15,200

22,000

27,600

35,700

49,000

June 15 to Sept. 30

38.1

38.5

39.0

41.0

46.0

2,670

2,960

3,400

5,400

10,600

Hote.- Same as preceding table above 

46.0 feet.

Discharge, in second-feet, water year October 1941 to September 194£

Day

1 

2 

3 

4 

5

6 

7 

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.

3,800 

3,900 

4,010 

4,010 

3,900

3,800 

3,700 

3,700 

3,900 

4,010

4,010 

4,110 

4,110 

4,110 

4,110

4,320 

4,420 

4,420 

4,420 

4,420

4,2EO 

4,320 

4,530 

4,530 

4,530

4,530 

4,740 

4,950 

5,500 

5,610 

5,500

Nov.

5,390 

5,610 

5,950 

6,300 

6,760

6,520 

6,180 

5,840 

5,720 

5,500

5,280 

5,390 

5,500 

5,500 

5,390

5,840 

6,520 

6,520 

6,060 

5,840

5,720 

5,610 

5,500 

5,390 

5,170

5,170 

5,280 

5,280 

5,390 

5,950

Dec.

8,250 

9,170 

12,600 

27,800 

26,400

18, 800 

14,300 

11,800 

10,400 

9,400

8,940 

8,600 

8, £50 

8,820 

21,600

32.900 

36,200 

37,800 

36,600 

37,100

36,200 

34,400 

31,600 

30,600 

29,000

26,600 

24,500 

24,400 

31,600 

34,800 

32,000

Jan.

29,000 

25,200 

21,700 

19,900 

18,400

17,100 

16,100 

£1,800 

30,200 

28,300

25,400 

23,000 

21,600 

£0,700 

19,600

18.500 

17,700 

17,000 

16,200 

15,400

14,700 

14,100 

14,700 

26,700 

35,700

39,900 

40,200 

40,400 

41,200 

38,900 

35,900

Feb.

33,900 

33,700 

38,100 

40,400 

40,700

42,800 

.46,900 

48,200 

44,900 

40,700

36,900 

34,600 

32,900 

31,600 

30,600

29,600 

28,500 

27,600 

26,400 

24,900

23,700 

2C,600 

21,800 

20,900 

20,400

20,400 

19,800 

18,900

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

her. .... 

mber

lendar year 194]

h. ......... ..... .....................

ter year 1941-42 . ..............

Time basis: Pacifi

To convert war ti-ne

Mar.

18,100 

17,300 

16,900 

16,400 

16,100

15,700 

15,400 

15,200 

14,700 

14,500

14.900 

15,500 

16,400 

17,000 

17,800

19,100 

18,400 

17,700 

16,800 

16,000

15,400 

14 , 800 

14,300 

13,900 

14,000

13,700 

13,300 

13,000 

12,700 

12,500 

12,300

Apr.

12,200 

12,600 

12,600 

13,100 

23,000

31,400 

31,000 

28,500 

26,000 

24,000

23,500 

23,400 

22,500 

23 , 800 

31,400

31,800 

31,800 

32,400 

32,900 

31,800

30,600 

29,600 

28,500 

27,300 

25,500

23,700 

22,500 

£2,400 

24,500 

22,900

Secondfoot-days

134,140 

172,070 

721,430

6,087,360

765,200 

882,400 

479,800 

757,200 

547,100 

314,440 

146,600 

95,530 

98,330

5,114,240

May

21,700 

23,000 

22,200 

20,900 

19,900

18, 800 

17,900 

17,100 

16,900 

16,800

16,900 

16,500 

16,600 

15,700 

14,900

14,800 

15,400 

15,000 

14,600 

14,200

14,100 

14,700 

15,400 

15,800 

15,300

17,100 

24,000 

23,000 

20,700 

19,300 

17,900

Maximum

5,610 

6,760 

37,800

44,600

41,200 

48,200 

19,100 

32,900 

£4,000 

16,500 

6,100 

3,600 

3,900

48,200

June

16,500 

15,500 

15,000 

15,000 

14,500

13,900 

13,700 

13,300 

12,600 

12,200

11,700 

11,400 

11,000 

10,600 

10,000

9,560 

9,240 

8,820 

8,610 

8,610

8,400 

,900 

,600 

,400 

,500

,300 

,000 

6,800 

6,500 

6,300

Minimum

3,700 

5,170 

8,250

2,700

14,100 

18,900 

12,300 

12,200 

14,100 

6,300 

3,500 

2,670 

2,310

2,670

July

6,100 

6,000 

6,000 

6,000 

5,800

5,600 

5,400 

5,300 

5,400 

5,300

5,200 

5,000 

4,800 

4,600 

4,400

4,500 

4,600 

4,600 

4,600 

4,500

4,200 

4,100 

4,200 

4,200 

4,100

4,000 

3,800 

3,600 

3,500 

3,600 

3,600

Aug.

3,600 

3,600 

3,400 

3,220 

3,220

3,310 

3,400 

3,310 

3,310 

3,220

3,040 

2,960 

3,130 

3,220 

3,040

3,040 

2,960 

2,810 

2,880 

2,960

2,880 

3,040 

2,960 

2,880 

2,740

2,670 

2,810 

2,880 

2,960 

3,040 

3,040

Mean

4,327 

5,736 

£3 , 270

16,680

24,680 

31,510 

15,480 

25,240 

17,650 

10,480 

4,729 

3,082 

3, £7 8

14,010

c standard time prior to £ a.m., Feb. 9, 194£; pacific war time there 

to standard tire, subtract 1 hour.

Sept.

2,880 

2,810 

2,960 

3,040 

3,040

3,040 

2,880 

2,880 

2,880 

3,130

3,310

3,400 

3,400 

3,310 

3,130

3,130 

3,220 

3,220 

3,220 

3,310

3,400 

3,220 

3,220 

3,500 

3,700

3,800 

3,900 

3,800 

3,800 

3,800

Runoff in 

acre-feet

266,100 

341,300 

1,431,000

12,070,000

1,518,000 

1,750,000 

951,700 

1,502,000 

1,085,000 

623,700 

£90,800 

189,500 

195,000

10,140,000

after.
SACRAMENTO RIVER MAIN STEM 263

Sacramento River below Wilkins Slough, Calif.

Location.- Water-stage recorder, lat. 39°00'35", long. 121°49'25", in Jineno Grant,

 1,500 feet downstream.from Wilkins dough, Colusa County, and 6 miles southeast of 

Grimes. Zero of gage is set to datum of Corps of Engineers, U. S. Army.

Records available.- August 1931 to October 1939 (low-water periods only) and June 1940

 to September 1942 in reports of Geological Survey. 1931-42 (gage heights for highwater periods only) and 1939-42 (discharge) in reports of Division of Water Resources, 

Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 26,000 second-feet Feb. 8 (gage height, 52.29

 feet); minimum, 1,600 second-feet Aug. 26 (gage height, 20.77 feet). 

1941-42: Maximum discharge, that of Fob. 8, 1942.

1931-42: Minimum discharge recorded, 100 second-feet Aug. 1, 1931 (gage height,. 

14.20 feet) .

Remarks.- Records good except those for duys of rapidly changing stage, which are fair. 

Flow regulated by storage, many diversions above station 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.

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

20.8

23.0

25.0

1,600

2,930

4,190

30.0

35.0

40.0

7,800

11,600

15,400

45.0

50.0

52.3

19,400

24,000

26,600

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

4,060

4,120

4.190

4.190

4,190

4,060

3,930

3,930

4,060

4,190

4,190

4,190

4,190

4,190

4,190

4,260

4,400

4,470

4,540

4,620

4,470

4,400

4,540

4,760

4,760

4.690

4,970

5,180

5,540

5,970

5,970

Nov.

5,830

5,330

6,110

6,550

6,840

6,990

6,700

6,400

6,190

5,970

5,680

5,610

5,680

5,750

5,680

5,830

6,330

6,700

6,480

6,190

5,970

5,830

5,750

5,680

5,540

5,470

5,470

5,540

5,610

5,830

-

Dec.

6,990

8,920

9.820

18,300

21,000

19,500

15,600

13,200

11,600

10,500

9,750

9,220

8,850

8,780

15,200

21,200

21,700

22,000

22,000

22, 000

22,000

21,800

21,500

21,300

21,100

20,900

20,500

20,400

21, 100

21,700

21.500

Jan.

21,100

20,700

20,000

19,400

18,400

17,300

16,300

17,700

20,900

20,900

20,500

20,100

19,800

19,400

18,900

18,000

17,300

16,600

16,000

15,400

14,800

14,200

14,200

18, 500

21,400

22,000

22,200

22,400

22,700

22,500

22,000

Feb.

21,700

21,600

21,900

22,100

22,300

22,800

24,600

26,300

25.300

23,700

22,400

21,900

21,700

21,400

21,200

21,100

21,000

20,900

20,700

20,400

20,300

20,000

19,900

19,600

19,300

19,200

18,900

18,100

.

.

-

Month

October. ...................................

November ...................... ............

December. ..................................

Calendar year 1941 ......................

January. .............. .................

February. ...... ........................

March. ......... . ............. .......

April. ......... ......................

May. . ......... ....... ..... .... .....

June ........... . . ..... ...... . . . .

July. ............ .... . . . . . . ...

August ............... . . . . . . . . .

September. ............

Water year 1941-42 . . ......

Mar.

17,500

16,900

16,300

15,900

15,600

15,400

15,200

14,900

14,600

14,500

14,600

15,200

15,900

16,600

17,300

18,400

18,200

17,600

16,900

16,200

15,500

15,100

14,600

14,200

14,100

13,800

13 , 500

13,200

13.000

12,800

12,500

Apr.

12

12

12

12

17

21

21

21

20

20

20

20

20

20

21

21

21

21

21

21

21

21

21

20

20

20

20

20

20

20

Secondfoot-days

139,410

180,030

529,930

4,529,990

591,600

600,300

476,000

588,900

510,400

303,630

115,380

64.660

89,570

4,189,810

Time basis: Pacific standard time prior to 2 a.m.. ;

To convert war time to standard time, subtract 1 hour.

,300

,500

,800

,800

.500

,200

,400

,100

,800

,500

,400

,400

,200

,300

,200

,400

,400

,400

,500

,400

,300

,200

,100

,900

,700

,400

,200

,000

,400

,200

-

May

19,800

20,000

19,900

19 , 500

18,900

18,100

17,300

16 , 500

15,900

15,900

15,900

15,500

15,600

15,100

14,300

13,900

14,200

14,300

13,900

13,600

13,400

13,700

14,400

15,000

14,900

15,300

19,400

20,200

19,500

18,800

17,700

MaxJ mum

5,970

6,990

22,000

23,700

22,700

26,300

18,400

21,500

20,200

16,600

5,260

2,560

4,120

£6,300

June

16,600

15,500

14,700

14,400

13,900

13,400

13,100

13,000

12,400

11,900

11,600

11,100

10,700

10,400

9,900

9,450

9,080

8,700

8,250

8,180

8,100

7,730

7,210

6,910

6,840

6,770

6,400

6,110

5,830

5,470

-

Minimum

3,930

5,470

6,990

c.oao

14,200

13,100

12,500

12,300

13,400

5 4^0

C.560

1,660

2,030

1,660

July

5,260

5,110

5,040

5,040

4,970

4,760

4,470

4,190

4,260

4,260

4,190

3,990

3,800

3,610

3,430

3,360

3,490

3,430

3,490

3,490

3,240

3,050

2,990

3,120

3,120

3,050

2,870

2,620

2,560

2,560

2,560

Aug.

2,560

2,

2,

2,

560

500

320

2,200

2.260

2,

2,

2,

360

260

260

2,260

2,

1,

2,

2,

2,

140

960

140

260

140

2,080

2,

1,

1,

020

340

780

1,840

1,900

1,

2,

1,

360

02P

300

1,780

1,

1,

1,

2,

2,

2 ,

Mean

4,497

6,001

1^,090

12,410

19 , 080

21,440

15,350

19,630

16,460

10,120

3,722

2,086

2,986

11,480

i>b. 9, 1P42; Pacific war time the

660

720

340

020

080

140

Sept.

2,140

2,080

2,140

2,260

2,320

2,380

2,320

2,260

2,260

2,380

2,690

2,930

3,050

3,050

2,990

2,930

2,930

2,990

2,990

3,120

3,180

3,240

3,360

3,490

3,800

4,060

4,120

4,050

4,060

3,990

-

Runoff in 

acre-feet

2/6,500

357. ICC

I, 1' 53 .ore

8,984,000

1,173,000

1, If 1,000

944,100

1,1GB, 000

1,012,000

60S, 200

l'2-l', 300

177,700

8,3H',QOC

reiftp-.
264 SACRAMENTO RIVER MAIN STEM 

Sacramento River at Knights Landing, Calif.

Location.- Water-stage recorder, lat. 38°48'10", long. 121°42'55", In NEi sec. 14, T.

 11 M., R. 2 E., Just upstream from Southern Pacific Railroad bridge at Knights Landing. 

Auxiliary gage Is water-stage recorder at station at Verona. Zero of both gages Is 

set to datum of Corps of Engineers, U.S. Army.

Records available.- April 1921 to October 1939 (low-water periods only) and June 1940 to

 September 1942 In reports of Geological Survey. 1926-42 (gage heights for high water 

periods only), and 1939-42 (discharge), In reports of Division of Water Resources, 

Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 27,900 second-feet Feb. 9, maximum gage height,

 41.63 feet Feb. 8; minimum dally discharge, 2,2CO second-feet Aug. 27; minimum gage 

height, 12.10 feet Aug. 26.

1940-42: Maximum discharge, that of Feb. 9, 1942.

1921-42: Maximum discharge recorded, 250 second-feet July 23, 1931 (gage height, 

7.80 feet).

Remarks.- Records good. Flow regulated by storage, many diversions for Irrigation, and

 bypassing for flood control; considerable return water from irrigation. Discharge 

computed by using fall as a factor.

Cooperation.- Records collected and prepared In cooperation with Division of Water Recources,

 Department of Public Works, State of California.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

9C*O

27

28

29

30

31

Oct.

4,480

4,500

4,610

4,600

4,630

4,320

3,980

3,910

3,970

4,080

4,170

4,140

4,180

4,140

4, ISO

4,200

4,300

4,370

4,460

4,460

4,490

4,360

4,450

4,580

4,680

4,770

4,950

5,230

5,600

6,330

6,330

Nov.

6,260

6,120

6,270

6,680

7,050

7,480

7,200

6,630

6,440

6,180

5,800

5,580

5,620

5,720

5,710

5,810

6,280

6,720

6,690

6,300

6,130

5,930

5,830

5,730

5,580

5,460

5,360

5,480

5,550

5,650

Dec.

6,750

8,990

9,570

17,200

22,600

21,100

17,700

14,600

13,200

12,000

10,800

10,100

9,390

9,190

13,400

21,400

21,700

23,300

22,500

22,700

2C,900

22,900

22,700

22,700

22,700

22,500

22,300

21,800

21,600

22,600

22,900

Jan.

22,900

22,600

22,100

21,300

19,600

18,400

17,300

17,600

22,200

22,700

22,300

21,800

21,200

20,300

20,400

19, 600

18,600

18,100

17,600

17,400

16,200

15,600

15,200

18,700

22,300

21,000

22,000

21,900

23,300

23,700

23,600

Feb.

23,300

22,500

22,500

23,100

 22,400

20,700

16,000

24,400

27,400

26,100

24,500

23,500

22,900

22,600

22,100

22,000

21,900

21,700

22,000

21,600

21,600

21,600

21,300

20,800

20,300

20,400

20,200

20,000

-

-

-

Mar.

19,100

18,300

17,600

17,200

16,600

16,300

15,900

15,600

15,200

14,900

14,500

14,600

15,200

16,600

16,700

17,800

18,600

18,000

17.MOO

16,300

15,700

15,300

14,900

14,400

14,200

14,000

13,600

13,600

13,200

12,900

12,600

Apr.

12,400

12,500

12,700

12,000

14,900

20,000

20,900

21,400

21,200

20,800

20, 600

20,200

20,500

19, 800

20,700

21,400

21,400

21,600

21,900

21,900

21,800

21,600

21,500

21,200

21,300

21,000

20,700

20,600

21,000

21,200

-

Hay

20,600

20,400

20,500

20,300

19,600

18,700

17,700

16,400

15,400

15,200

15,200

15,000

15,200

14,800

14,000

13,100

13,300

13,700

13,500

13,100

12,800

13,000

13,400

14,200

14,200

14,100

18,400

20,500

19,900

19,500

18,000

June

16,400

15,200

14,400

14,100

13,600

13,000

12,900

12,600

12, 200

11,700

11,300

11,000

10,800

10,600

9,9.60

9,630

9,450

9,340

8,960

8,860

8,950

8,490

8,000

,620

,500

,510

,310

,000

6,640

6,140

-

July

5,830

5,460

5,490

5,460

5,520

5,240

4,890

4,580

4,460

4,490

4,350

4,330

3,930

3,700

3,520

3,410

3,520

3,520

3,540

3,560

3,430

3,220

3,110

3,190

3,180

3,150

3,050

2,850

2,740

2,730

2,790

Aug.

2,790

2,810

2,810

2,640

2,510

2,470

2,530

2,550

2,530

2,610

2,500

2,380

2,390

2,510

2,500

2,440

2,400

2,400

2,290

2,350

2,480

2,460

2,520

2,510

2,400

2,290

2,280

2,340

2,510

2,630

2,710

Sept.

2,730

2,710

2,710

2,780

2,920

3,010

3,070

2,970

2,980

3,130

3,410

3,830

4,030

3,860

3,790

3,710

3,610

3,740

3,640

3,640

3,630

3,820

4,010

4,130

4,420

4,880

5,120

5,250

5,120

5,080

-

Month

Water year 1941-42 ... ...... ...........

Secondfoot-days

4,698,540

486,800

590,700

503,700

311,160

77,570

4,331,780

Maximum

25,300

19,100

21,900

20,600

16,400

5,830

2,810

27,400

Minimum

2,510

15,200

12,600

12,800

6,140

2,730

2,280

Mean

17 930

12,870

20,260

22,120

15,700

19,690

16,250

10,370

3,943

2,502

3,724

11 , 870

Runoff in 

acre-feet

9,320,000

1,246,000

1,229,000

965,600

999,100

617,200

242,500

153,900

8,593,000

Time Ijasis: Pacific standard time prior to 2 a.m., Feb. 

To convert war time to standard time, subtract 1 hour.

9, 1942; Pacific war time thereafter.
SACRAJIENTO RIVER MAIN STEM 26 

Sacramento River at Verona, Calif.

Location.- Water-stage recorder, lat. 38°46'50", long. 121°36'15", in SEi sec. 23, T. 

11 II., R. 3 E., three-quarters of a mile southeast of Verona and 1 mile downstream 

from Feather River. Zero of gage is set 0.06 foot below datum of Corps of Engineers, 

U. S. Army.

Records available.- May 1926 to September 1942 (1926-29, low-water periods only). 

Average discharge.- 13 years (1929-42), 17,110 second-feet.

Extremes.- Maximum discharge during year, 78,000 second-feet Feb. 8 (gage height, 40.80 

feet); minimum, 3,160 second-feet Aug. 26 (gage height, 8.83 feet).

1926-4-2: Maximum discharge, 79,200 second-feet Mar. 1, 1940 (gage height, 41.20 

feet); minimum, 261 second-feet July 24, 1931 (gage height, 6.93 feet).

Remarks.- Records good. Storage, many diversions, and considerable return water affect 

flow. When discharge is larger than about 55,000 second-feet, flow begins over 

Fremont weir and down Yolo Bypass. Elevation of crest of Fremont weir is 33.5 feet 

(Corps of Engineers, U. S. Army, datum).

Discharge, in second feet, water year October 1941 to September 194E

Day

4 

5

9

10

11

13

15

1 Q

19

20

22

23

24

25

26

po

31

Oct.

6,730

6,660

6,630

6,660 

6,700

6,030

5,990 

6,070

6,140 

6,240

6,090

6,070

6,100

6,140

6,280

6,350

6,450

6,350

6,320

6,380

6,480

6,580

6,630

6,840

7,260

7,910

8,260

8,300

Nov.

8,410

8,770

9,570

10,200 

10,500

10,200

9,800

9,220

9,210 

8,650

8,170 

7,960

7,800 

7,910

7,930

8,120

8,340

8,950

9,060

8,810

8,330

8,070

8,070

7,880

7,510

7,400

7,370

7,420

7,610

8,090

-

Dec.

9,300

11,700

13,800

30,800 

38,400

36,400

31,300

25,700

21,000 

18,000

16,200 

14 , 900

15,100 

16,200

24,500

39,600

52,000

57,600

59,600

59,400

29,200

58,600

57,500

56,200

55,000

53,700

52,100

51,900

53,900

55,000

55,000

Jan.

54,700

53,400

51,300

48,100 

43,600

39,000

35,100

34,300

39,700 

43,400

45,200 

45,200

43,800 

41,800

39,400

36,700

34,400

32,300

30,000

27,600

26,300

24,900

24,500

29,600

40,600

54,100

60,600

64,900

66,000

65 , 200

63,300

Feb.

61,100

59,200

58,600

60,400 

63 , 500

66,600

73,000

76,900

72,700 

69,100

66,300 

64,400

62,500 

60,600

59,000

58,000

57,100

56 , 100

55,200

54,200

52,800

51,200

49,600

46 , 800

44,400

42,400

40,300

38,200

-

-

-

Month

March. ........ ............. .... ... ....

Water year 1941-42 ...... ... ...... ....

Mar.

36,200

34,200

32,200

31,200 

30,200

29,200

28,400

28,200

27,700 

27,500

28,200 

31,200

34,000 

36,200

40,800

43,700

42,600

40,500

38,200

36,200

34,400

32,200

31,000

29,700

29,000

28,000

27,000

26,000

25,300

24,400

24,200

Apr.

23,700

24,200

24,900

28,200 

40,300

53,100

57 ,.4 00

57,100

56,300 

55,500

55,000 

54,400

53 , 900 

54,200

56,300

57,100

57,100

57,700

57,700

57,400

57,100

56,600

56,300

55,800

55,200

54,200

52 , 600

51,500

50,900

49,900

-

Secondfoot-days

202,850

255,330

1,199,600

10,730,360

1,339,000

1,620,200

987,800

1,521,600

116,990

9,689,410

May

48,900

48,300

47,300

46,000 

43,900

41,300

39,000

37,400

37, 200 

37,400

37,400 

37,400

37,000 

35,400

33,700

34,200

36,000

36,000

35,400

35,200

35,400

36,700

38,700

40,500

41,100

42,900

49,100

52,800

53,100

51,500

48,900

Maximum

8,300

10,000

59,600

68,600

66,000

76,900

43,700

57,700

53,100

45,500

11,600

4,420

76,900

June

45,500

42,100

39,200

35,700

35,400

35,400

32,700 

31,400

30,400 

29,200

26,300

25,300

24,900

24,000

22,600

21,000

20,300

19,400

18,600

17,700

16,900

16,300

15,600

14,600

14 , 000

13,000

12,200

~

Minimum

5,900

7,370

9,300

3,720

24,500

38,200

24,200

23,700

33,700

12,200

4,550

3,360

4,170

3,360

July

11,600

11,000

11,400

10,700

9,930

8,540 

8,370

8,200 

7,880

6,760

6,600

6,300

6,300

6,300

6,300

6,300

5,860

5,720

5,330

5,460

5,460

5,590

5,330

4,810

4,550

4,680

4,550

Aug.

4,420

4,420

4,290

4,050

3,930

3,930

3,810 

3,690

3,690

3,810

3,690

3,580

3,590

3,470

3,470

3.580

3,580

3,690

3,690

3,580

3,360

3,360

3,580

3,690

4,050

4,050

Mean

6,544

8,511

38,700

29,400

43,190

57,860

31,860

50,720

41,130

25,950

7,312

3,774

5,522

26,550

Sept.

,170

,290

,550

,420

,810 

,330

,590

,330

,460

,590

,590

a ,600

a ,600

a ,700

a ,900

,150

,450

,080

,560

,720

"

Runoff in 

acre-feet

402,300

506,400

2,379,000

21,280,000

2,656,000

3,214,000

1,959,000

3,018,000

2,529,000

1,544,000

449,600

232,000

328,600

19,220,000

a No gage-height record; discharge Interpolated. 

Time basla; Pacific standard time prior to 2 a.m., Feb. 

To convert war ti-e to standard time, subtract 1 hour.

530350 O - 43 - 18

9, 1942; Pacific war tiire thereafter.
£66 PIT RIVER BASIN

Pit River near Canby, Calif.

Location.- Uater-stage recorder, lat. 41°24', long. 120°55', in SWi sec. 10, T. 41 N., 

R. 9 E., at lower end of Warn Spring Valley, about 4 miles southwest of Canby. Altitude of cage, about 4,300 feet (from topographic map).

Drainage area.- 1,430 square miles (excluding Goose Lake Basin).

Records available.- January 1904 to December 1905, May 1929 to September 1942 (1929-31 incomplete).

Average discharge.- 11 years (1931-42), 195 second-feet.

Extremes.- Maximum discharge during year, 3,280 second-feet Jan. 28 (gage height, 7.60 

feet); minimum, 4.0 second-feet Aug. 6.

1904-5; 1929-42: Maximum discharge recorded, 17,000 second-feet Mar. 8, 1904 (gage 

height, 14.0 feet, former datum); minimum, 0.1 second-foot Apr. 29, Aug. 5, Sept. 18, 

1934, Aug. 18-21, 1935.

Remarks.- Records good except those for periods of Ice effect, which are fair. Flow 

regulated by storage and many diversions above station for Irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

39

38

39

46

50

45

37

32

40

40

36

38

39

40

40

45

63

59

46

50

51

51

54

54

58

78

63

68

86

92

86

Nov.

89

132

118

140

159

178

151

126

122

108

92

83

72

66

63

66

68

77

83

75

70

59

56

56

59

59

56

56

59

61

-

Dec.

59

77

295

335

285

295

270

233

186

147

118

105

99

155

310

430

528

486

498

486

464

403

370

340

300

252

b210

b!80

b!60

b!50

b!40

Jan.

b!30

b!20

b!20

bllO

blOO

blOO

b90

105

140

195

b280

b330

b390

b450

b430

386

320

280

229

178

b!70

170

216

345

750

1,330

2,640

3,070

2,210

1,920

1,540

Feb.

1,300

1,340

1,380

1,340

1,250

2,090

2,500

2,300

1,970

1,760

1,660

1,320

086

758

609

525

472

422

395

375

360

350

335

335

335

325

315

310

-

-

-

Mar.

310

325

350

370

380

406

416

411

455

482

548

632

716

782

764

782

722

662

570

510

466

438

406

390

375

365

345

325

305

305

305

Apr.

325

345

365

406

438

472

494

488

477

488

516

560

609

656

692

680

680

656

620

570

554

504

472

466

450

433

428

428

416

400

-

May

450

472

472

477

466

450

433

390

390

395

400

411

406

455

554

609

614

656

686

716

728

698

644

598

604

604

592

638

698

728

758

June

770

764

740

692

644

598

587

565

521

494

460

360

350

380

255

214

218

196

192

113

92

196

218

162

136

132

144

129

125

144

-

July

166

162

132

140

101

62

65

90

95

85

85

104

132

125

74

51

65

77

74

72

69

67

62

49

42

26

17

12

17

18

20

Aug.

22

17

16

9

6

5

14

25

40

40

42

35

30

24

17

16

16

16

16

14

14

15

14

14

14

15

26

51

67

90

122

Sept.

119

87

56

40

32

25

44

98

116

98

116

107

98

90

82

69

62

60

56

47

44

40

40

45

47

42

37

33

32

30

-

Month

Water year 1941-42 . . . . . ............

Secondfoot-days

1,593

8,366

69,638.5

13,844

27,313

14,618

15,088

17,198

10,591

2,356

868

1,898

121,379

Maximum

92

178

528

2,500

782

692

758

770

166

122

119

3,070

Minimum

32

56

59

3.0

90

31D

305

32S

390

92

12

25

5

Mean

51.4

88.6

270

191

608

976

472

503

555

353

76.0

27.8

63.1

333

Runoff in 

acre-feet

3,160

5,270

16,590

37,380

54,180

28,990

29,930

34,100

21,010

4,670

1,710

3,750

240,700

Peak discharge.- Jan. 26 (3 a.m.) 3,280 soc.-ft.; Feb. 7 (1 to 2 a.n 

b Sta^e-dlscharge relation affected by ice.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

o convert war time to standard time, subtract 1 hour.

2,620 sec.-ft.

;lne thereafter.
PIT RIVER BASIN 267

Pit River at Fall River Mills, Calif.

Location.- Water-stage recorder, lat. 41°00', long. 121°26', In NEi sec. 6, T. 36 II., P.. 

5 E., 0.8 mile downstream from Fall River and town of Fall River Mills. Altitude of 

gage, about 3,235 feet (from topographic map).

Drainage area.- 4,150 square miles, excluding Goose Lake Basin.

Records available.- December 1922 to September 1942. March 1921 to December 1922 at 

site 0.7 mile upstream.

Average discharge.- 19 years (1923-42), 439 second-feet (excluding flow of Fall River).

Extremes.- Maxlnum discharge during year, 11,600 second-feet Feb. 7 (gage height, 7.55 

feet): minimum, 68 second-feet Aug. 23.

1921-42: Maximum discharge, 28,600 second-feet Dec. 12, 1937 (gage height, 11.8 

feet), from rating curve extended above 9,000 second-feet on basis of velocity-area 

and AV3~ studies; minimum, 12 second-feet Aug. 5, 1926, Oct. 23, 1936.

Remarks.- Records good. Fall River Is diverted through Pit No. 1 powerhouse and returned 

to Pit River below station. Many small reservoirs and diversions above station for 

Irrigation. River receives return flow from McArthur, Knoch, and other diversions.

Cooperation.- Water-stage recorder graph furnished by Pacific Gas & Electric Co.

Rating table, water year 1941-42 (gage height, in feet, 

in second-feet)

nd discharge

0.4

.6

.8

1.0

1.4

1.3

53

81

118

170

310

520

2.2

2.6 

3.0 

3.5 

4.0 

4.5

795

1,130

1,550

2.190

2,950

3,820

5.0 

5.5 

6.0 

6.5 

7.0 

7.5

4,SOO

5,950

7,200

8,600

10,100

11,600

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

a98

a9S

100

100

100

100

98

98

112

98

104

108

108

96

95

102

118

84

95

110

144

224

148

130

145

156

156

170

173

173

173

Nov.

194

231

234

227

224

220

220

241

241

170

173

197

194

179

173

194

1R5

164

164

162

159

150

150

148

142

153

145

142

156

167

-

Dec.

170

200

408

578

802

720

624

565

502

460

422

347

306

428

444

1,050

1,600

1,570

1,600

1,600

1,570

1,310

1,160

995

902

V20

578

520

552

558

520

Jan.

417

361

356

a310

a290

8270

a290

a300

315

422

490

558

637

795

RIO

855

870

a 770

a680

a590

508

526

630

878

2,260

3,040

5,090

6,750

7,480

6,600

4,800

Feb.

3,780

3,510

3,440

3,390

3,730

8,660

11,000

10,500

7,150

5,200

4,360

3,820

3,040

2,500

2,260

3,980

1,720

1,520

1,330

1,200

1,180

1,080

1,030

1,080

1,030

1,010

942

910

_

_

-

Mar.

894

902

950

950

950

959

995

1,020

1,040

1,160

1,440

1,960

2,460

2,620

2,220

2,150

2,010

1,920

1,750

1,590

1,460

1,350

1,310

1,270

1,230

1,130

1,050

1,000

977

1,010

986

Apr.

,030

,050

,110

,250

,380

,420

,430

,400

1,350

1,300

1,280

1,290

1,290

1,570

1,950

1,790

1,730

1,690

1,560

1,440

1,330

1,220

1,140

1,060

1,000

950

934

1,030

1,220

1,230

-

May

1,220

1,190

i,oeo

1,030

1,000

942

878

825

795

783

788

788

795

802

795

825

926

959

977

1,040

1,020

1,000

1,030

1,000

995

995

1,000

1,050

1,080

1,100

1,110

June

1,120

1,120

1,120

1,100

968

926

894

825

772

750

685

637

514

306

319

366

376

351

347

347

270

231

231

200

137

135

148

140

145

200

-

July

227

135

173

188

217

252

259

231

217

191

162

148

159

156

241

173

194

197

170

191

164

130

123

137

128

130

118

98

102

98

96

Aug.

95

93

84

70

106

110

81

72

74

93

98

88

78

88

86

91

95

95

102

102

96

75

69

95

104

93

116

164

142

116

120

Sept.

118

90

80

88

106

98

96

104

118

100

140

137

106

106

106

104

104

108

125

123

96

81

112

120

120

132

128

128

125

116

-

Month

December ...................................

Mav

September. .................................

Water year 1941-42 ......................

Secondfoot-days

23,781

3,315

313,597

Maximum

224

1,600

1,120

140

11,000

Minimum

84

170

788

135

69

80

69

Mean

123

183

767

3,298

1,373

962

523

96.5

110

859

Runoff in 

acre- feet

7,570

40,910

47,170

415,200

97,090

183,200

84,720

78,200

5P,150

31,100

10,420

5,930

6,580

622,000

a No r^nge-heiirht record; discharge interpolated or furnished by Pacific Gas 

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific » 

To convert war time to standard time, subtract 1 hour.

Electric Co 

time thereafter.
B68 PIT RIVER BASIN

Pit River at Big Bend, Calif.

Location.- Water-stage recorder, lat. 41°01', long. 121°55', in sec. 31, T. 37 N., R. 1 

E.,' at settlement of Big Bend, half a mile downstream from Nelson Creek and I riile 

upstream from Kosk Creek. Datum of gage is 1,674.47 feet above mean sea level, datum 

of 1929.

Drainage area.- 4,920 square miles, excluding Goose Lake Basin. 

Records available.- September 1910 to September 1942. 

Average discharge.- 31 years (1911-42), 2,852 second-feet.

Extremes.- Maximum discharge during year, 19,eOO second-feet (regulated) Feb. 7 (gage 

height, 13.83 feet); minimum, 1,630 second-feet (regulated) Oct. 3 (gage height, 7.69 

feet).

1910-42: Maximum discharge, 34,200 second-feet Dec. 12, 1937 (gage height, 16.26 

feet), from rating curve extended above 11,000 second-feet on basis of velocity-area 

studies; minimum daily, 692 second-feet (regulated) July 9, 1925.

Remarks.- Records excellent. Flow regulated by storage, power plants, and many diversions 

above station; daily fluctuations usually reduced by automatic regulator at Pit No. 4

dam.

Rating table, water year 1941-42 (gage height. In feet, 

In second-feet]

7.8 

8.0 

8.2 

8.4 

8.6

1,760

2,010

2,280

2,570

2,880

8.8 

9.0 

9.3 

9.6 

9.9

3,200

3,550

4,110

4,720

5,390

10.2

10.6

11.0

11.5

12.0

6,140

7,260

8,450

10,050

11,800

and discharge,

12.5

13.0

13.5

14.0

13,700

15,700

13,000

20,400

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24

25

28 

27 

28 

29 

30 

31

Oct.

2,360 

2,340 

2,170 

1,970 

1,940

2,110 

P.290 

2,290 

2,290 

2,340

2,010 

2,000 

2,180 

2,340 

2,340

2,340 

2,310 

2,040 

2,030 

2,240

2,410 

2,360 

2,360 

2,320

2,noo

2,060 

2,380 

2,460 

2,500 

2,500 

2,450

Nov.

2,140 

2,170 

2,420 

2,600 

2.60&

2,520 

2,360 

2,080 

2,170 

2,440

2,540 

2,450 

2,440 

2,410 

2,200

2,200

a, 320

2,460 

2,460 

2,450

2,390 

2,110 

2,080 

2,240 

2,390

2,390 

2,410 

2,360 

2,150 

2,180

Dec.

2,360 

3,040 

3,500 

3,480 

3,270

3,060 

2,800 

2,700 

2,850 

2,980

2,900 

2,720 

2,540 

2,800 

3,770

4,230 

4,270 

4,700 

5,850 

5,180

4,870 

5,050 

4,330 

4,070 

3,410

3,790 

3,510 

3,750 

3,570 

3,200 

IS 150

Jan.

2,960 

2,620 

2,570 

2,640 

2,630

2,640 

2,680 

2,830 

2,900 

2,880

3,020 

3,230 

3,180 

3,150 

3,220

3,350 

3,420 

3,220 

3,180 

3,010

2,940 

3,040 

3,460 

3,940 

4,570

6,690 

9,600 

11,700 

12,000 

11,100 

9,570

Feb.

7,910 

6,180 

8,580 

8,830 

9,540

15,800 

18,600 

17,500 

14,000 

11,300

9,790 

8,900 

8,180 

7,140 

6,140

6,520 

5,730 

5,390 

5,090 

4,900

4,760 

4,250 

4,790 

4,660 

4,550

4,410 

4,330 

3,920

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

lendar year 194 

ary

1. .....................................

ember. .................................

ter year 1941-42 ......................

Mar.

4,370 

4,070 

4,250 

4,170 

4,110

4,020 

3,660 

3,750 

4,390 

4,230

4,470 

5,010 

5,680 

6,010 

5,410

5,760 

? , 390 

5,120 

5,070 

4,790

4,470 

4,070 

4,790 

4,370 

4,350

4,250 

4,150 

4,050 

3,960 

3,920 

4,020

Apr.

4,020 

4,000 

4,070 

4,290 

4,740

4,900 

4,900 

4,630 

4,790 

4,700

4,700 

4,720 

4,350 

5,300 

6,140

6,190 

6,170 

6,110 

5,660 

5,660

5,340 

5,120 

4,900 

4,740 

4,570

4,450 

4,510 

4,700 

4,660 

4,830

Secondfoot-days

69,710 

70,130 

111,700

1,224,330

137,940 

223,690 

140,130 

148,060 

131,890 

97,440 

76 , 030 

68,910 

67,670

1,343,300

May

4,790 

4,660 

4,430 

4,680 

4,350

4,250 

4,310 

4,190 

4,470 

3,820

4,270 

4,030 

4,020 

4,000 

4,020

4,070 

4,070 

4,130 

4,070 

4,090

4,150 

4,130 

4,130 

4,090 

4,190

4,150 

4,350 

4,450 

4,490 

4,510 

4,530

Maximum

2,500 

2,600 

5,850

15,500

12,000 

18,600 

6,010 

6,190 

4,790 

4,470 

2,830 

2,480 

2,580

18,600

June

4,470 

4,390 

4,370 

4,270 

4,130

4,130 

3,980 

3,940 

3,840 

3,820

3,880 

3,530 

3,180 

2,880 

2,580

2,510 

2,770 

3,230 

3,230 

2,630

2,510 

2,620 

2,880 

2,820 

2,630

2,500 

2,380 

2,280 

2,420 

2,640

Minimum

1,940 

2,080 

2,360

1,870

2,570 

3,920 

3,660 

4,000 

3,820 

2,280 

2,020 

1,880 

1,930

1,860

July

2,740 

2,800 

2,560 

2,390 

2,350

2,540 

2,820 

2,830 

2,770 

2,460

2,320 

2,110 

2,250 

2,510 

2,570

2,630 

2,580 

2,280 

2,110 

2,270

2,560 

2,560 

2,540 

2,290 

2,040

2,020 

2,320 

2,420 

2,410 

2,500 

2,460

Aug.

2,100 

2,050 

2,320 

2,380 

2,350

2,350 

2,410 

2,000 

1,910 

2,150

2,410 

2,350 

2,290 

2,270 

1,880

1,160 

2,350 

2, 140 

2,450 

2,480

2,270 

1,960 

1,920 

2,150 

2,310

2,420 

2,410 

2,450 

2,090 

2,040 

2,290

Mean

2,249 

2,338 

3,603

?,354

4,450 

7,989 

4,520 

4,935 

4,255 

3,24S 

2,453 

2,223 

2,256

3,680

Sept.

2,580 

2,510 

2,390 

2,180 

2,040

1,970 

2,170 

2,410 

2,450 

2,420

2,320 

1,980 

1,930 

2,170 

2,320

2,360 

2,420 

2,450 

2,020 

1,P60

2,150 

2,440 

2,480 

2,250 

2,170

1,980 

2,020 

2,220 

2,460 

2,450

Runoff in 

acre-feet

138,300 

139,100 

221,600

2,428,000

273,600 

443,700 

277,900 

293,700 

261,600 

193,300 

150,800 

136,700 

134,200

2,664,000

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
PIT RIVER BASIN 269

Pit River near Ydalpom, Calif.

Location.- Water-stage recorder, lat. 40°46', long. 122°14', in NWi sec. 32, T. 34 N., R.

 3 W., at Silverthorne Ferry, half a nile downstream from Squaw Creek, Is niles southwest of Ydalpon, and 4 niles upstream from IlcCloud River. Altitude of [Age, about 735 

feet (from topographic map).

Drainage area,..- 5,350 square miles (excluding Goose Lake Basin).

Records available.- May 1924 to September 1942. November 1910 to May 1924 at site 400 

feet downstream.

Average discharge.- 31 years (1911-42), 4,007 second-feet.

Extremes.- Maximum discharge during year, 44,900 second-feet Feb. 6 (gage height, 19.75

 feet), from rating curve extended above 22.000 second-feet; mininun, 1,870 second-feet 

(regulated) Oct. 3 (gage height, 4.80 feet).

1910-42: Maxinum discharge, 65,000 second-feet Dec. 10, 1937 (gage height, ,24. <O) 

feet), from rating curve extended above 22,000 second-feet on basis of velocityarea and AVcT studies; minimum, 1,000 second-feet (regulated) July 10, 1925.

Remarks.- Records excellent. Flow regulated by storage, power plants, and many diver-

 sions above station; daily fluctuations usually reduced by automatic regulator at 

Pit No. 4 dam.

Rating table, water year 1941-42 (gage height, in feet, and discharge, in 

second-feet)

4.9 

5.2 

5.5

1,980

2,330

2,720

6.0 3,430

7.0 

8.0 

9.0

5,000

6,780

8,790

10.0 11,000

11 13,600

12 16,500

13 19,600

14 22,800

15 26,200

16 29,700

17 33,460

19 41,700

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

2,470 

2,370 

2,320 

2,090 

2,010

2,090 

2,360 

2,370 

2,370 

2,450

2,200 

2,150 

2,200 

2,460 

2,460

2,470 

2,460 

2,260 

2,100 

2,260

2,550 

2,520 

2,470 

2,510 

2,200

2,160 

2,590 

2,680 

2,680 

2,640 

2,660

Nov.

2,420 

2,450 

2,640 

2,870 

2,850

2,750 

2,630 

2,290 

2,290 

2,510

2,730 

2,640 

2,600 

2,730 

2,590

2,580 

2,510 

2,680 

2,660 

2,640

2,620

2,360 

2,220 

2,310 

2,560

2,560 

2,560 

2,620 

2,550 

2,970

Dec.

2,720 

6,070 

7,960 

4,770 

4,270

3,780 

3,460 

3,170 

3,210 

3,370

3,250 

3,140 

4,550 

9,750 

16,500

15,400 

11,200 

16,600 

15,600 

12,300

9,640 

8,900 

7,900 

7,030 

6,040

5,900 

5,630 

5.V70 

6,170 

5,930 

5,480

Jan.

5,070 

4,450 

4,160 

4,110 

3,980

3,920 

4,410 

5,290 

5,150 

4,930

4,860 

5,000 

4,810 

4,720 

4,670

4,750 

4,780 

4,560 

4,370 

4,210

4,050 

4,460 

7,050 

12,800 

19,400

20,500 

26,300 

22,500 

18,900 

16,500 

14,200

Feb.

13,600 

19,400 

21,200 

29,000 

28,000

41,000 

34,800 

28,700 

22,700 

17,900

14,900 

13,100 

11,800 

10,300 

8,960

9,210 

8,220 

7,760 

7,220 

6,970

6,780 

6,220 

6,310 

6,550 

6,260

6,020 

5,880 

5,480

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June

July 

Augu 

Sept

Wa

Lendar year 1941 

ary

h. .....................................

1. ...... ... . . . . . ...... ...........

ter year 1941-42 ... ...........

Peak discharge.- D

(3 a.m. ) 22,400 sec. 

(7 a.m.) 44,900 sec. 

Time basis: Paclf 

To convert war time

Mar.

5,680 

5,490 

5,630 

5,490 

5,390

5,340 

4,800 

4,900 

5,510 

5,480

5,750 

6,270 

6,930 

7,240 

6,630

7,080 

6,630 

6,290 

6,290 

5,990

5,750 

5,070 

5,900 

5,480 

5,420

5,290 

5,140 

5,020 

4,950 

4,860 

5,030

Apr.

5,170 

5,000 

5,360 

7,100 

7,880

7,520 

7,030 

6,700 

6,550 

6,460

6,290 

6,310 

6,400 

9,460 

11,400

10,800 

11,300 

11,400 

10,200 

9,490

8,710 

8,080 

7,560 

7,160 

6,800

6,530 

7,240 

7,360 

6,950 

7,280

"

Secondfoot-days

73,580 

77,390 

225,460

2,018,260

258,860 

404,240 

176,720 

231,490 

184,920 

125,860 

88,360 

75,830 

74,240

1,996,950

May

7,340 

7,060 

6,460 

6,720 

6,220

6,000 

5,860 

5,860 

6,060 

5,440

6,180 

5,730 

5,630 

5,530 

5,600

5,540 

5,490 

5,490 

5,390 

5,370

5,410 

5,370 

5,320 

5,290 

6,500

6,510 

6,290 

6,550 

6,380 

6,220 

6,110

Maximum

2,680 

2,970 

16,600

28,000

26,300 

41,000 

7,240 

11,400 

7,340 

5,950 

3,360 

2,730 

2,790

41 , 000

June

5,950 

5,910 

5,810 

5,630 

5,360

5,320 

5,140 

5,030 

4,920 

4,830

4,880 

4,640 

4,160 

3,900 

3,520

3,400 

3,520 

4,030 

4,11.0 

3,490

3,310 

3,240 

3,600 

3,540 

3,340

3,240 

3,070 

2,900 

2,890 

3,180

Minimum

2,010 

2,210 

2,720

2,010

3,920 

5,480 

4,800 

5,000 

5,290 

2,890 

2,280 

2,080 

2,170

2,010

July

3,220 

3,360 

3,100 

2,900 

2,850

2,920 

3,270 

3,270 

3,250 

2,970

2.V20 

2,620 

2,490 

2,940 

2,990

3,030 

3,040 

2,820 

2,550 

2,540

2,920 

2,920 

2,870 

2,680 

2,460

2,280 

2,540 

2,710 

2,670 

2,710 

2,750

Aug.

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,

Mean

2,374 

2,580 

7,273

5,529

8,350 

14,440 

5,701 

7,716 

5,965 

4,195 

2,850 

2,446 

2,475

5,471

410 

220 

370 

660 

630

620 

720 

330 

210 

260

680 

620 

540 

540

170

080 

420 

420 

540 

690

540 

270 

130 

160 

500

660 

670 

730 

470 

260 

310

Sept.

2,790 

2,750 

2,630 

2,490 

2,270

2,230 

2,210 

2,630 

2,690 

2,680

2,640 

2,290 

2,170 

2,270 

2,560

2,550 

2,630 

2,660 

2,360 

2,170

2,260 

2,580 

2,720 

2,520 

2,400

2,220 

2,190 

2,330 

2,670 

2,680

Runoff in 

acre-feet

145,900 

153,500 

447,200

4,003,000

513,400 

801,800 

350,500 

459,200 

366,800 

249,600 

175,300 

150,400 

147,300

3,961,000

ec. 15 (9 a.m.) 18,300 sec. -ft.; Dec. 16 (3 p.m.) 18,700 sec. -ft.; Jan. 25 

-ft.; Jan. 27 (9 a.m.) 28,600 sec. -ft.; Feb. 4 (4 p.m.) 33,500 see. -ft.- Feb. 6 

-ft. 

ic standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

to standard time, subtract 1 hour.
270 PIT RIVER BASIN

South Fork of Pit River near Likely, Calif.

Location.- Water-stace recorder, lat. 41°14', long. 120°25'. in IJEi sec. 11, T. 39 IJ., R. 

13 E., 1.3 niles downstream from West Valley Creek and 3-|- miles east of Likely. Altitude of gage, about 4,580 feet (from topographic nap).

Drainage area.- 248 square miles.

Records available.- October 1928 to September 1942.

Extremes.- Maximum discharge during year, 435 second-feet May 25 (gage height, 4.01 feet); 

minimum, 1.7 second-foot Dec. 11.

1928-42: Maximum discharge, 1,060 second-feet Apr. 27, 1932 (gage height, 5.55 

feet), from rating curve extended above 600 second-feet; minimum, 0.2 second-foot Feb. 

3, 1941.

Remarks.- Records good, except those for periods of ice effect, which are fair. Flow 

regulated by storage and diversions above station for irrigation. Diversion through 

feed canal (capacity, about 50 second-feet) to West Valley Creek Reservoir began July 

1, 1936.

Rating table, water year 1941-42, except periods of Ice effect (gage height, 

In feet, and discharge, In second-feet) 

(Shifting-control method used Mav 16-18)

1.4 2.0 2.2 43

1.5 3.5 2.3 52

1.6 6.0 2.4 63

1.7 10 2.5 76

1.8 15 2.6 88

1.9 21 2.7 104

2.0 27 2.8 122

2.1 35 2.9 140

3.0 160

3.2 202

3.4 250

3.6 304

3.8 366

4.0 432

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

19

20

22

23

22

22

23

24

24

23

24

24

25

24

28

26

23

23

24

37

32

30

28

27

26

26

34

33

37

32

31

Nov.

37

50

45

49

41

28

22

14

10

6

3.5

3.5

3.0

3.2

6

9

6

4.0

3.4

06

b5

b5

b5

b4

b4

4.0

2.6

2.8

2.8

3.4

-

Dec.

b3.5

4.0

37

31

25

16

9

5

2.9

3.0

6

3.0

2.4

4.8

12

25

25

33

47

53

48

47

45

43

b43

b43

b42

b42

b42

41

41

Jan.

b40

b35

b30

b30

b25

b20

28

47

52

50

50

48

45

37

37

37

b35

b32

b32

b30

30

33

42

87

102

113

118

79

63

59

58

Feb.

65

118

98

85

90

166

164

120

104

101

93

78

65

60

61

58

58

55

52

53

53

54

50

51

50

48

47

48

-

-

-

Month

October. ....... ...................... ....

November. ....................... ..........

December . .... ...........................

Calendar year 1941 ........... ..... . .

January ...... ........... .............

February ..... .................. ... . . ...

March. ... . .... ... .... ..... .... . ....

April ... ........ . . . . .... ....... .

May. . ........ . ...... ........ .... . ...

June. ..................... ..... ..........

July. ...... ...... .... . ...... . ...... .

August ..... ........... . . .......... . .

September. . ... .............

Water year 1941-42 .... ...... ....

Mar.

49

52

52

51

52

55

53

55

60

65

82

117

115

91

79

80

74

71

65

63

61

61

58

59

54

52

53

53

53

54

60

Apr.

Secondfoot-days

816

388.2

824.6

21,684.5

1,524

2,145

1,999

4,740

8,894

6,250

1,718

4,282

1,168

34,748.8

65

68

76

88

84

82

83

88

99

129

148

168

204

216

191

191

184

166

166

182

187

207

204

200

200

187

202

221

226

228

-

May

200

180

178

176

174

187

207

214

224

238

245

258

268

260

290

369

310

290

298

304

328

353

382

408

422

405

372

372

353

325

304

Maximum

37

50

53

301

118

166

117

228

422

313

85

221

96

422

June

279

284

313

298

284

290

284

273

268

260

250

238

226

209

209

200

182

166

160

148

142

138

135

158

178

191

178

117

99

93

-

Minimum

19

2.6

2.4

.9

20

47

49

65

174

93

30

69

14

2.4

July

85

75

74

70

67

64

60

58

54

53

51

50

48

47

44

43

37

36

37

34

30

46

58

59

58

58

59

60

63

70

70

Aug.

69

83

101

104

106

101

101

101

99

117

131

131

131

127

127

126

129

148

176

187

198

221

219

214

212

212

170

126

108

106

101

Sept.

96

93

85

87

75

62

62

63

55

50

37

19

17

17

17

17

14

19

23

23

24

23

24

23

23

23

23

23

25

26

u *r, Runoff in Mean acre-feet

26.3 1,620

12.9 770

26.6 1,640

59.4 43,020

49.2 3,020

76.6 4,250

64.5 3,960

158 -9 , 400

287 17,640

208 12,400

55.4 3,410

138 8,490

38.9 2,320

95.2 68,920

b Stage-discharge relation affected by Ice.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert war tlire to standard time, subtract 1 hour.
PIT RIVER BASIN 271

Hat Creek near Hat Crer-K, Calif.

Location.- Water-stage recorder, lat. 40°41', long. 121°25', in SEi sec. 28, T. 33 II., R. 

5 E. t about 1 mile northeast of Old Station post office and 8 niles southeast of Hat 

Creek post office. Altitude of face, about 4,500 feet (from topographic map).

Drainage arpr..- 155 square niles.

Records available.- April 1928 to Septenber 194,3. July 1926 to April 1928 at site half 

a riile upstream.

Average discharge.- 15 years (1926-29, 1930-42), 112 second-feet.

Extremes.- Maximum discharge during year, 776 second-feet Dec. 3 (gage height, 4.54 feot); 

minimum, liO second-feet IIov. 19.

1926-42: Maximum discharge, 2,500 second-feet Dec. 11, 1937 (gage height, 7.75 

feet, in well, affected by drawdown), by slope-area method; r.iinimum, 67 second-feet 

Sept. 7, 1934.

Remarks, Records excellent except those for period of no gage-height record, which are 

fair. Irrigation canals above station divert from 2 to 30 second-feet.

Rating table, water year 1941-42 (gage height, in feet, 

in second-feet)

and discharge,

2.3 106 2.7 19O 3.1 296 

2.4 124 2.8 216 3.3 352 

2.5 144 2.9 242 3.5 412 

2.6 166 3.0 268

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Octo 

Nove 

D°ce

Ca

Janu 

Febn 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

Oct.

126 

126 

128 

128 

130

130 

130 

124 

122 

120

119 

120 

120 

119

119

117 

117 

115 

115 

119

117 

117 

117 

117 

119

119 

124 

122 

122 

120 

120

Nov.

126 

132 

128 

126 

122

122 

120 

120 

120

119

119 

119 

119 

120 

120

128 

122 

119 

115

117

117 

117 

119 

119 

119

119 

119 

119 

132

144

Dec.

128 

411 

355 

168 

148

140 

134 

132 

130 

130

128 

126 

126 

126 

185

290 

188 

176 

183 

173

159 

153 

153 

146 

146

142 

140 

142 

144 

142 

144

Jan.

136 

134 

132 

124 

122

124 

148 

151 

140 

136

136 

136 

136 

138 

138

138 

136 

132 

134 

136

136 

134 

130 

136 

140

151 

200 

168 

155 

153 

151

Feb.

148 

144 

144 

140 

144

164 

151 

144 

144 

144

142 

140 

138 

136 

140

140 

140 

140 

136 

138

138 

138 

136 

138 

136

136 

136 

136

Month

lendar year 194 

ary

St. ........ ... . ...

amber, . 

ter year 1941-42 ....... .......

Mar.

j 136 

134 

134 

136 

136

136 

134 

134 

134 

134

134 

134 

134 

132 

135

135 

135 

130 

130 

130

130 

130 

130 

130 

125

125 

125 

125 

125 

130 

130

Apr.

Secondfoot days

3,758 

3,657 

5, 188

54,580

4,361 

3,951 

4,082 

4,512 

5.475 

7,092 

5,379 

4,276 

3,888

55,619

135 

140 

145 

150 

150

150 

145 

140 

140 

145

145 

155 

160 

165 

165

160 

160 

155 

150 

148

151 

157 

153 

148 

151

151 

151 

153 

148 

146

May

146 

144 

142 

142 

142

142 

151 

159 

166 

164

159 

153 

148 

146 

148

151 

153 

162 

173 

195

226 

252 

242 

237 

260

221 

200 

195 

188 

183 

185

Maximum

130 

144 

411

411

200 

164 

136 

165 

260 

255 

224 

148 

134

411

June

208 

219 

224 

237 

250

255 

245 

242 

255 

252

245 

239 

I 237 

247 

255

250 

245 

242 

229 

226

229 

232 

239 

237 

239

229 

219 

221 

221 

224

Minimum

115 

115 

126

107

122 

136 

125 

135 

142 

208 

138 

124 

122

115

July

224 

221 

219 

219 

213

203 

198 

193 

188 

190

193 

185 

180 

173 

171

168 

168 

166 

162 

155

146 

146 

144 

144 

146

146 

144 

142 

138 

144 

148

Aug.

148 

148 

148 

148 

146

146 

146 

146 

138 

132

134 

132 

130 

128 

130

132 

132 

134 

138 

140

140 

140 

140 

140 

138

138 

138 

138 

136 

128 

124

Mean

121 

122 

167

150

141 

141 

132 

150 

177 

236 

174 

138 

130

152

Sept.

122 

122 

122 

122 

122

122 

122 

126 

134 

134

134 

134 

134 

134 

134

134 

134 

134 

132 

132

132 

132 

130 

130 

130

130 

130 

130 

130 

130

Runoff in 

acre-feet

7,450 

7,250 

10,290

108,200

8,650 

7,840 

8,100 

8,950 

10,860 

14,070 

10,670 

8,480 

7,710

110,300

Note.- No gage-height record Bar. 15 to Apr. 19; discharge computed on basis of records for station on Pit River near Canby, and precipitation records.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
272 PIT RIVER BASIN

McCloud River near McCloud, Calif.

Location.- Water-stage recorder, lat. 41°11', long. 122°04', in NEi sec. 34, T. 39 N., 

Ti. £ w., half a mile downstream from 4ngel Creek and 6 miles southeast of McCloud. 

Altitude of gage, about 2,750 feet (from topographic map).

Drainage area.- 308 square miles.

Records available.- April 1931 to September 1942.

Average discharge.- 11 years, 625 second-feet.

Extremes.- Maximum discharge during year, 3,500 second-feet Dec. 16 (gage height, 4.45 

feet); minimum, 886 second-feet Nov. 25-28 (gage height, 1.41 feet).

1931-42: Maximum discharge, 8,820 second-feet Feb. 28, 1940 (gage height, 8.9 

feet), from rating curve extended above 2,400 second-feet on basis of velocity-area 

and AVd" studies; minimum, 524 second-feet Nov. 23, 24, 1932.

Remarks.- Records excellent. Two small diversions above station with a total capacity 

of about 10 second-feet.

Rating tatle, 'vster year 1941-42 (gage height, in feet, and dischar 

in second-feet)

2.0 

2.3

1,010

1,150

1,290

1,530

2.6

3.6

4.1

1,780

2,050

2,320

2,690

3,190

Discharge, in second-feet, water year October 1941 to September 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

Oct.

938

938

938

938

932

932

932

932

932

932

932

938

932

926

926

926

926

926

92fi

926

926

926

926

926

926

932

932

926

919

919

919

Nov.

932

932

932

926

919

912

912

912

906

906

906

906

912

945

932

926

912

906

900

900

900

693

893

893

086

886

886

886

919

932

-

Dec.

932

1,070

1,450

1,100

1,010

978

°58

945

932

926

919

919

971

1,180

1,670

3,150

2,110

1,690

1,770

1,810

1,550

1,390

1,300

1,230

1,180

1,140

1,120

1,110

1,090

1,070

1,040

Jan.

1,020

1,010

1,000

997

984

984

990

984

978

971

971

964

958

952

952

952

945

945

938

938

938

997

1,120

1,350

1,570

1,880

2,670

2,130

1,750

1 , 580

1.500

Feb.

1,630

1,950

1,970

1,990

1,930

2,510

2,240

1,920

1,740

1,630

1,550

1,490

1,430

1,390

1,360

1,330

1,310

1,280

1,260

1,250

1,240

1,220

1,200

1,190

1,170

1,160

1,150

1,140

-

_

-

Mar.

1,130

1,130

1,120

1,120

1,120

1,120

1,120

1,120

1,130

1,140

1,170

1,180

1,180

1,170

1,160

1,140

1,140

1,140

1,130

1,120

1,120

1,130

1,140

1,130

1,120

1,120

1,110

1,120

1,120

1,120

1,140

Apr.

1,150

1,160

1,180

1,310

1,400

1,370

1,350

1,350

1,370

1,390

1,410

1,440

1,590

1,840

1,880

1,870

1,790

1,S7C

1,670

1,660

1,650

1,660

1,F90

1,550

1,520

] ,490

1.F.10

1,480

1 ,430

1,430

-

Hay

1,410

1,360

1,340

1,320

1,310

1,310

1,320

1 , 350

1,400

1,400

1,400

1,380

1,330

1,310

1,320

1,340

1,320

1,320

1,350

1,390

1,460

1,530

1,500

1,490

1,630

1,930

1,670

1,630

1,550

1,480

1,450

June

1,430

1,460

1,430

1,420

1,430

1,430

1,400

1,380

1,360

1,350

1,310

1,300

1,290

1.280

1,280

1,260

1,250

1,240

1,230

1,210

1,210

1,200

1,150

1,1£0

1,180

1,170

1,160

1,350

1,140

1,140

-

July

1,140

1,140

1,140

1,140

1,120

1,110

1,090

1,080

1,070

1,070

1,070

1,070

1,060

1,060

1,050

1,040

1,040

1,040

1,040

1,040

1,040

1,030

1,030

1,030

1,030

1,020

1,020

1,020

1,020

1,010

1,010

Aug.

1,000

1,000

1,000

1,000

997

997

1,000

997

997

1,000

1,000

990

"90

990

990

990

990

990

984

904

984

984

984

904

904

984

904

984

984

978

978

Sept.

978

978

978

971

971

971

071

971

964

964

964

964

964

964

964

950

958

956

958

958

958

952

952

952

952

952

952

952

C'52

952

-

Month

Water year 1941-42 . . . . . ..... . . ...

Secondfoot-days

431,242

Maximum

,",150

Minimum

1 1 C 0

rj cp

886

Mean

1 s2<?

1 435

990

1,181

Runoff in 

acre-feet

*

8b5,400
PIT RIVER BASIN 273

McCloud River at Baird, Calif.

Location.- Water-stage recorder, lat. 40°47', long. 122°18', in SEi sec. 22, T. 34 N., R. 

4 W., half a mile downstream from Baird post office and ll miles upstream from mouth. 

Altitude of gage, about 700 feet (from topographic map).

Drainage area.- 668 square miles.

Records available.- December 1930 to September 1942. December 1910 to December 1930 at 

site 1 mile upstream.

Average discharge.- 31 years (1911-42), 1,763 second-feet.

Extremes.- Maximum discharge during year, 19,600 second-feet Dec. 16 (gage height, 15.95

 feet; minimum, 1,160 second-feet Nov. 11, 12, 24-28.

1910-42: Maximum discharge, 50,000 second-feet Feb. 28, 1940 (gage height, 29.2 

feet), from rating curve extended above 26,000 second-feet on basis of logarithmic 

plotting of station rating and of cable-gage ratings at old site and present sites; 

minimum, 650 second-feet for several days during period August to October 1931.

Remarks.- Records excellent. No large diversions.

Rating table, water year 1941-42 (gage height, In feet, and discharge, 

In second-feet)

2.4 

2.6 

3.0 

3.5 

4.0 

4.5

1,165

1,265

1,500

1,830

2,210

2,640

5.0 

6.0 

7.0 

8.0 

9.0 

10.0

3,120

4,190

5,400

6,700

8,100

9,600

11.0

12.0

13.0

14.6

11,100

12,700

14,300

17,100

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1,200

1,200

1,200

1,200

1,200

1,200

1,200

1,200

1,200

1,200

1.200

1,220

1,220

1,200

1,200

1,200

1,190

1,190

1,200

1,200

1, 180

1,180

1,180

1,180

1,180

1,210

1,320

1.E40

1,200

1,180

1,180

Nov.

1,220

1,240

1,250

1,250

1,200

1,190

1,180

1,180

1,180

1,170

1,160

1,160

1,180

1,410

1,390

1,350

1,250

1,220

1,200

1,180

1,180

1,180

1,170

1,160

1,160

1,160

1,160

1,160

1,320

1,570

-

Dec.

1,430

3,310

4,500

2,500

1,900

1,680

1,560

1,490

1,430

1,400

1,360

1,370

2,510

5,620

10,400

16,000

9,080

9,680

8,620

7,860

5,960

4,670

4,050

3,530

3,220

2,930

2,760

2,680

2,760

2,700

2,600

Jan.

2,410

2,280

2,200

2,120

2,030

1,990

2,080

2,350

2,400

2,390

2,340

2,290

2,230

2,180

2,140

2,090

2,020

1,960

1,910

1,860

1,840

2,310

5,660

11,800

12,200

11,500

15,000

10,100

7,110

5,690

4,980

Feb.

5,960

11,300

13,200

17,000

13,400

16,700

12,100

8,850

6,840

5,860

5,090

4,560

4,160

3,870

3,630

3,420

3,260

3,120

2,960

2,870

2,780

2,670

2,570

2,550

2,460

2,370

2,320

2,270

-

-

-

Mar.

2,220

2,190

2,150

2,110

2,080

2,070

2,040

2,030

2,020

2,030

2,100

Apr.

1,960

1,910

2,030

2,850

3,990

3,700

3,220

2,940

2,830

2,780

2,700

E.llOi 2,680

2,120

2,140

2,070

2,030

2,010

1,990

1,960

1,940

1,920

1,910

1,910

1,900

1,880

1,840

1,840

1,830

1,820

1,820

1,910

3,110

5,350

6,710

5,880

5,960

5,860

5,220

4,760

4,370

4,080

3,780

3,510

3,320

3,150

3,130

3,000

2,820

2,920

-

May

2,910

2,740

2,640

2,570

2,500

2,460

2,440

2,450

2,500

2,530

2,580

2,500

2,410

2,380

2,440

2,440

2,410

2,390

2,370

E,410

2.500

2,600

2,570

2.5EO

4,240

4,480

3,720

3,430

3,190

2.960

2,800

June

2,710

2.740

2,670

2,570

2,530

2,510

2,440

2,370

2,310

2,260

2,200

2,150

2,120

2,090

2,070

2,030

1,990

1,970

1,940

1,910

1,880

1,860

1,840

1,820

1,810

1,800

1,770

1,740

1,720

1,700

-

July

1,690

1,690

1,680

1,680

1,660

1,650

1,610

1,600

1,570

1,560

1,550

1,540

1,530

1,520

1,520

1,510

1,490

1,490

1,480

1,470

1,460

1,450

1,450

1,430

1,430

1,420

1,420

1,410

1,410

1,400

1,390

Aug.

1,370

1,370

1,370

1,370

1,360

1,350

1,350

1,340

1,330

1,330

1,340

1,320

al,320

al,320

al,310

al,310

al,310

al,310

al.300

al,300

al.300

al,300

al,300

al,300

1,290

1,280

1,280

1,280

1,280

1,280

1,270

Sept.

1,260

1,260

1,260

1,260

1,260

1,260

1,260

1,260

1,270

1,260

1,260

1,260

1,E50

1,240

1,240

1,E40

1,230

1,230

1,230

1,230

1,220

1,220

1,220

1,220

1,E20

1,220

1,220

1,220

1,220

1,220

-

Month

April. ......... . ........... ... ... ....

May. ........... ..... . . ........ .....

Water year 1941-42 . ....... ............

Secondfoot-days

131,560

1,120,920

951,620

Maximum

1,570

16,000

16,800

17,000

Minimum

1,360

1,160

1,160

Mean

1,226

4,244

3,071

2,607

Runoff in 

acre- feet

260,900

2,223,000

1,887,000

Peak discharge.- Dec. 16 (12 m.) 19,600 sec.-ft.; Jan. 24 (9:30 p.m.) 16,300 sec.-ft.; Jan. 2^ 

(9 a.m.) 16,300 sec.-ft.; Feb. 4 (12 m.) 18,800 sec.-ft.; Feb. 6 (9 a.m.) 18,700 sec.-ft.; Apr. 15 

(4 a.m.) 7,120 sec.-ft.

a No gage-height record; discharge Interpolated.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
274 CLEAR CREEK BASIN

Clear Creek near Igo, Calif.

Location.- Water-stage recorder, lat. 40°31', long. 122°31', In NEilEi sec. 27, T. 31 N. 

R. 6 W., at highway bridge on Reddlng-Igo road, 1.0 mile northeast of Igo, 8 nlles 

southwest of Redding, and 9 miles upstream from mouth. Altitude of gage, about 700 

feet (from topographic map).

Drainage area.- 231 square miles.

Records available.- October 1940 to September 1942.

Extremes.- Maximum discharge during year, 12,700 second-feet Feb. 4 (gage height, 10.22 

feet); minimum, 35 second-feet Sept. 25.

1940-42: Maximum discharge, 19,200 second-feet Mar. 1, 1941 (gage height, 12.2 

feet), from rating curve extended above 12,000 second-feet on basis of velocity-area 

studies; minimum, 27 second-feet Oct. 2, 1940.

Remarks.- Records excellent except those for December to May, which are good. Small 

diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

42 

42 

41 

45 

46

47 

48 

48 

48 

48

48 

53 

60 

56 

53

53 

52 

51 

54 

60

58 

56 

54 

53 

54

66 

126 

103 

82 

70 

66

Nov.

72 

84 

82 

82 

73

68 

65 

65 

65 

65

64 

64 

65 

82 

105

103 

93 

82 

75 

72

70 

68 

68 

66 

64

65 

65 

66 

137 

189

Dec.

145 

1,420 

963 

411 

268

210 

176 

151 

139

131

120 

115 

535 

1,040 

2,530

3,810 

2,330 

3,200 

2,240 

2,110

1,530 

1,130 

1,030 

838 

732

640 

620 

852 

1,160 

956 

808

Jan.

668 

575 

510 

462 

414

408 

588 

792 

778 

748

718 

682 

634 

582 

536

498 

462 

426 

390 

368

352 

784 

3,800 

6,890 

4,860

3,970 

4,560 

3,090 

2,250 

1,810 

1,550

Feb.

2,170 

6,250 

4,360 

9,010 

6,890

6,130 

4.220 

3,000 

2,380 

2,000

1,730 

1,520 

1,360 

1,240 

1,140

1,050 

997 

948 

885 

843

801 

766 

717 

696 

661

627 

601 

575

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May. 

June 

July 

Augu 

Sept

Wa

mber. . . . . . . . ............. ..... .

mber . 

lendar y 

ary

ear 1943

h. ..... . ............... ...

1. ....

St. .....

ember. . .... 

ter year 1R41-42 . . ...

Mar.

551 

527 

515 

491 

473

455 

433 

428 

416 

428

455 

416 

406 

455 

428

406 

395 

385 

370 

360

350 

346 

341 

328 

319

306 

298 

290 

286 

282 

306

Apr.

306 

286 

328 

1,100 

2,580

1,760 

1,260 

1,040 

934 

913

829 

759 

961 

1,530 

1,510

1,450 

1,700 

1,740 

1,480 

1,290

1,120 

1,010 

913 

836

773

738 

787 

703 

640 

843

Secondfoot-days

1,783 

2,384 

32,340

376,943

45,155 

63,567 

12,245 

32,119 

16,734 

7,882 

3,118 

1,556 

1,227

220,110

Peak discharge.- Jan. 24 (3 p.m.) 9,940 sec. -ft.: Feb

May

766 

675 

620 

588 

557

527 

509 

491 

479 

479

497 

455 

433 

444 

557

509 

473 

444 

422 

411

395 

400 

385 

375 

1,180

850 

696 

614 

545 

497 

461

Maximum

126 

189 

3,810

15,100

6,890 

9,010 

551 

2,580 

1,180 

461 

142 

67 

54

9,010

June

438 

461 

406 

380 

360

350 

332 

324 

310 

294

286 

278 

266 

243 

255

232 

228 

221 

214 

211

204 

197 

184 

184 

184

181 

178 

168 

159 

154

Minimum

41 

64 

115

41

352 

575 

282 

286 

375 

154 

67 

41 

36

36

July

142 

137 

132 

129 

129

124 

126 

122 

114 

95

102 

104 

104 

109 

104

104 

107 

102 

98 

95

91 

88 

84 

80 

76

73 

71 

71 

69 

69 

67

Aug.

67 

67 

65 

64 

62

61 

59 

57 

54 

54

53 

53 

51 

50 

48

48

47 

46 

44 

43

42 

42 

41 

41 

42

42 

42 

42 

43 

43 

43

Mean

57.5 

79.5 

1,043

1,033

1,457 

2,270 

395 

1,071 

540 

263 

101 

50.2 

40.9

603

. 2 (4 a.m.) 8,880 sec. -ft.: Feb.

12,700 sec. -ft. 

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time the

To convert war time to standard time, subtract 1 hour.

Sept.

43 

42 

42 

42 

42

42 

42 

44 

54 

51

48 

46 

43 

42 

41

41 

38 

37 

37 

37

37 

36 

36 

36 

36

36 

37 

38 

42 

39

Runoff in 

acre- feet

3,540 

4,730 

64,150

747,800

89,560 

126,100 

24,290 

63,710 

33,190 

15,630 

6,180 

3,090 

2,430

436,600

4 (8 a.m.) 

reafter.
COTTONWOOD CREEK BASIN 

Cottonwood Creek near Cottonwood, Calif.

275

Location.- Water-stage recorder, lat. 40°24', long. 122°13', in MEi sec. 7, T. 29 II., R. 

3 W., 2 niles east of Cottonwood and 2 miles upstream from nouth. Altitude of gage, 

about 370 feet (from river profile map).

Drainage area.- 945 square miles.

Records available.- October 1940 to .September 1942.

Extremes.- Ilaxl'.un discharge durtng year, 42,600 second-feet Feb. 5 (gage height, 14.10 

feet), from rating curve extended above 30,000 second-feet; minimum, 49 second-feet 

Aug. 29.

1940-42: Maximum discharge, 52,300 seconcKfeet Mar. 1, 1941 (gage height, 15.4 

feet), fron rating curve extended above 30,000 second-feet; mininum, that of 

Aug. 29, 1942.

Remarks.- Records fair prior to April and good thereafter, 

station.

Small diversions above

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

83 

81 

81 

87

87

90 

92 

94 

94 

97

94

107 

120 

120 

117

126 

120 

110 

112 

117

110 

112 

115 

117 11''

117 

164 

213 

217 

185 

160

Nov.

164 

205 

266 

234 

209

171 

141 

126 

123 

120

115 

110 

107 

107 

115

120 

123 

123 

117 

110

107 

104 

104 

104 

104

104 

115 

115 

141 

288

Dec.

279 

3.24C 

6,500 

2,010

1,140

809 

606 

487 

456 

426

398 

382 

404 

1,220 

3,560

6,400 

3,420 

P , 730 

5,390 

3,740

2,530 

2,070 

2,740 

1,940 

1,560

1,440 

1,420 

6,760 

7,220 

3,140 

2,210

Jan.

1,700 

1,390 

1,210 

1,010 

990

962 

1,950 

3,570 

2,640 

2,200

1,930 

1,810 

1,690 

1,530 

1,400

1,310 

1,200 

1,100 

1,020 

953

899 

1,080 

4,060 

10,700 

7,380

5,700 

7,100 

5,260 

3,740 

3,090 

2,740

Feb.

3,020 

10,700 

5,960 

11,800 

18,300

20,800 

9,980 

6,^20 

,160 

,240

,560 

,100 

,760 

,510 

,250

,950 

,780 

,700 

,610 

,450

,360 

,270 

,120 

,100 

,040

980 

940 

900

Month

Ooto 

Nove 

Dace

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

ber. ...................................

mbe r .............................. ....

mbe r ............

lendar year 1941 

ary

h.. ....................................

St. ....................................

ter year 1941-42 ...............

Mar.

B73 

855 

o.46 

837 

837

037 

828 

819 

802 

802

940 

891 

855 

960 

1,090

1,020 

882 

828 

794 

762

738 

730 

715 

692 

670

655 

632 

618 

610 

595 

602

Apr.

640 

610 

640 

1,930 

3,410

2,150 

1,550 

1,330 

1,280 

1,400

1,330 

1,220 

1,780 

2,170 

1,660

1,720 

2,440 

2,970 

2,020 

1,800

,650 

,500 

,340 

,230 

,140

,080 

,280 

,310 

,080 

1,130

Secondfoot-days

3,656 

4,192 

82,627

807,167

83,384 

128,060 

24,615 

46,790 

27,236 

13,731 

4,447 

1,981 

1,897

422,616

May

1,370 

1,080 

1,000 

940 

891

837 

810 

802 

810 

810

846 

819 

770 

754 

891

900 

828 

786 

778 

786

810 

855 

810 

762 

1,020

1,160 

990 

910 

855 

802 

754

Maximum

217 

288 

8,730

29,000

10,700 

20,800 

1,090 

3,410 

1,370 

810 

224 

92 

111

20,800

June 

722 

BIO 

730 

678 

662

655 

632 

602 

566 

545

524 

497 

471 

452 

434

428 

406 

390 

380 

359

333 

328 

308 

288 

264

259 

259 

259 

254 

236

Minimum

81 

104 

279

' 81

899 

900 

595 

610 

754 

236 

84 

51 

56

51

July

224

220 

215 

211 

199

192 

177 

174 

167 

157

154 

154 

157 

154 

148

145 

142 

136 

130 

128

120 

111 

106 

104 

96

94

87 

87 

87 

87 

84

Aug.

87 

92 

87 

82 

78

75 

73 

69 

64 

64

62

60 

58 

58 

60

62 

64 

67 

62 

58

56 

55 

53 

53 

55

55 

55 

55 

51 

55 

56

Mean

118 

140 

2,665

2,211

2,690 

4,574 

794 

1,530 

879 

458 

143 

63.9 

63.2

1,158

Peak discharge.- Jan. 24 (5 D.m. ) 24,300 sec. -ft.; Feb. 2 (8:30 a.m.) 18,800 sec. -ft.;

Sept.

60 

60 

58 

56 

56

56 

62

60 

111 

87

75 

69 

67 

60 

60

58 

56 

56 

62 

67

60 

58 

56 

58 

58

60 

60 

60 

64

67

Runoff in 

acre-feet

7,250 

8,310 

163,900

1,601,000

165,400 

254,400 

48,820 

92,810 

54,020 

27,240 

8,820 

3,930 

3,760

838,300

Feb. 5

(10:30 p.m.) 42,600 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1842; Pacific 

To convert war time to standard time, subtract 1 hour.

ar time thereafter.
276 BATTLE CREEK BASIN

Battle Creek near Cottonwood, Calif.

Location.- Water-stage recorder, lat. 40°24', long. 122°08', In NWi sec. 6, T. 29 N., R. 

2 W., 3 miles upstream from mouth and 9 miles east of Cottonwood. Altitude of gage, 

about 420 feet (from topographic map).

Drainage area.- 362 square miles.

Records available.- October 1940 to September 1942.

Extremes.- Maximum discharge during year, 12,800 second-feet Feb. 6 (gage height, 11.85 

feet); minimum, 246 second-feet Oct. 3.

1940-42: Maximum discharge, that of Feb. 6, 1942; minimum, 130 second-feet 

(regulated) Sept. 16, 1941.

Maximum stage known, 15.8 ft. from floodmarks, Dec. 11, 1937 (discharge, 35,000 

second-feet, by slope-area method).

Remarks.- Records good prior to July 15 and fair thereafter. Flow regulated by four small 

power plants and several small reservoirs above gage. Diversions above gage of about 

10 second-feet for irrigation.

Rating table water year 1941-42 (gage height, In feet, and discharge. In second-feet) 

(Shifting-control method used July 15 to Sept. 30)

2.0 

2.2 

2.4 

2.7 

3.0

224

282

344

444

565

3.5 

4.0 

4.5 

5.0 

6.0

840

1,190

1,620

2,160

3,440

7.0 

8.0

4,850

6,350

7,280

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Dot.

252

252

249

252

255

258

252

255

255

255

255

264

273

261

261

264

264

264

264

273

273

273

273

270

267

276

331

318

300

279

285

Nov.

309

488

473

413

344

322

300

303

303

288

288

291

288

282

318

484

437

350

315

315

309

294

300

303

288

285

291

291

494

650

-

Dec.

444

1,030

2,070

682

500

437

407

386

373

366

354

347

354

1,350

2,000

3,180

1,380

1,330

1,290

1,600

991

840

912

756

774

714

810

1,350

1,370

1,020

762

Jan.

620

560

538

524

500

492

1,580

1,340

892

762

692

650

625

600

575

600

565

542

529

512

500

660

1,000

1,780

1,880

1,820

4.590

2,590

1.580

1,300

1,180

Feb.

1,220

2,210

1,530

1,810

2,840

7,140

2,730

1,710

1,390

1,220

1,120

1,020

957

898

892

834

804

786

744

738

720

698

676

709

665

635

635

600

-

-

-

Mar.

605

600

585

580

575

'556 570

556

570

570

682

732

698

682

650

625

600

600

585

575

565

552

534

538

534

516

520

516

504

520

529

Apr.

560

512

688

1,720

1,160

905

762

709

732

798

774

750

,390

,530

,010

,200

,250

977

938

918

866

879

853

792

792

768

1,060

924

816

834

-

May

846

792

750

750

726

720

732

756

774

804

853

792

768

768

792

944

798

768

762

822

905

977

964

957

1,420

1,210

991

991

950

866

828

June

610

840

810

810

860

866

828

616

822

810

798

762

774

768

774

762

744

714

704

660

640

630

620

630

620

605

575

547

547

556

-

July

565

580

575

575

560

552

538

529

516

508

504

488

480

469

466

462

451

441

427

420

424

410

403

403

396

396

396

376

379

379

383

Aug.

376

376

370

363

366

373

357

354

347

347

344

341

334

341

338

331

328

325

324

322

320

315

312

312

310

308

306

303

300

298

297

Sept.

297

291

291

294

294

291

294

292

290

290

288

288

285

288

285

284

283

282

282

285

288

285

285

285

285

285

285

285

285

285

-

Month

December. ................................ .

Water year 1941-42 .. . . ........... ...

Secondfoot-days

30,179

258,249

32,578

37,931

18,024

27,867

26,776

21,702

14,451

10,338

8,627

247,212

Maximum

3,180

4,590

7,140

732

1,720

1,420

866

580

376

297

7,140

Minimum

347

246

492

600

504

512

720

547

376

297

282

249

Mean

974

1,051

1,355

581

929

864

723

466

333

288

677

Runoff in 

acre-feet

59,860

75,240

35,750

55,270

53,110

43,050

28,660

20,510

17,110

490,400

Peak discharge.- Dec. 16 (12 m.) 5,600 sec.-ft.; Jan. 27 (9 a.m.) 7,920 sec.-ft.; Feb. 6 (5:30 

.m.) 12,800 sec.-ft.

Note.- Backwater from fish rack on control July 15 to Sept. 30; discharge computed on basis of 

orrections indicated by three discharge measurements.

Tine basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

o convert war time to standard tirre, subtract 1 hour.
ANTELOPE CREEK BASIN 277 

Antelope Creek near Red Bluff, Calif.

Location.- Water-stage recorder, lat. 40°12', long. 122°07', in SEi sec. 7, T. 27 N., R. 

2 W., 6 miles upstream from mouth and 6 miles east of Red Bluff. Altitude of gage, 

about 340 feet (from topographic map).

Drainage area.- 124 square miles.

Records available.- October 1940 to September 1942.

Extremes.- Maximum discharge during year, 10.400 second-feet Feb. 6 (gage height, 13.9 

feet); minimum, 34 second-feet (regulated) Oct. 30.

1940-42: Maximum discharge, that of Feb. 6, 1942; minimum, 14 second-feet (regulated) 

Oct. 1, 1940.

Remarks.- Records good. Small diversion above station for Rod Bluff water supply during 

October to June of each year.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

39

39

39

39

39

39

39

40

40

40

40

40

42

43

42

42

40

40

40

43

40

40

40

40

40

43

60

48

45

43

42

Nov.

48

92

82

75

55

48

45

43

43

43

42

43

43

45

51

105

73

60

55

51

50

48

48

47

47

47

47

47

88

181

-

Dec.

105

310

503

174

105

79

71

66

60

60

57

55

71

993

1,700

1,770

751

570

463

507

389

314

386

289

247

237

252

908

844

574

383

Jan.

276

213

179

157

135

127

646

688

417

316

268

235

211

190

174

168

157

144

133

125

117

252

699

1,220

1,000

861

2,050

1,220

789

590

485

Feb.

460

1,640

932

1,370

1,790

5,190

1,490

912

672

552

462

396

345

308

280

256

236

222

201

188

183

181

164

168

168

160

152

144

_

_

-

Mar.

138

130

124

116

113

111

105

102

100

104

150

241

258

236

229

208

179

164

148

138

128

120

114

114

107

98

95

92

88

85

90

Apr.

104

90

165

901

804

548

412

348

323

358

326

311

484

824

541

588

595

442

383

348

317

294

271

253

246

234

264

271

246

246

-

May

291

248

236

226

217

210

210

212

219

231

261

271

248

236

251

285

269

256

246

256

282

311

299

294

570

516

351

317

285

258

241

June

236

234

231

222

219

219

208

199

192

186

177

168

162

158

154

148

140

130

124

113

114

109

107

100

95

92

88

83

83

80

July

74

73

73

71

73

71

68

66

66

63

63

62

62

63

62

60

60

60

58

58

60

56

52

51

51

54

56

52

54

56

54

Aug.

54

51

51

51

51

51

51

54

54

54

56

58

57

57

56

54

50

50

48

48

50

50

50

50

50

51

51

51

51

51

50

Sept.

48

50

50

50

50

50

50

50

56

54

51

50

50

50

50

50

48

47

47

47

47

47

47

47

47

47

48

48

48

48

Month

March . ........................ . . ........

Water year 1941-42 ......................

Secondfoot days

99,038

19,222

4,225

11,537

8,603

4,571

1,902

1,611

1,472

83, 756

Maximum

4,880

5,190

258

901

570

236

74

58

56

5,190

Minimum

39

85

90

210

80

51

48

47

39

Mean

429

271

459

136

385

278

152

61.4

52.0

49.1

229

Runoff in 

acre-feet

196,400

8,380

22,880

17,060

9,070

3,770

3,200

2,920

166,100

Peak discharge.- Dec. 15 (10:30 a.m.) 4,760 sec.-ft.; Dec. 16 (11:30 a.m.) 4,040 sec.-ft.j Feb. 

(6 a.m.) 10,400 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
278 MILL CREEK BASIN

Mill Creek near Los llollnos, Calif.

Location.- VJater-stage recorder, lat. 40°03'20", long. 122°01'15", in Ni sec. 6, T. 25 

N., R. 1 W., 5 miles upstream from mouth and 5 miles northeast of Los Mollnos. Altitude of gage, about 420 feet (from topographic map).

Drainage area.- 134 square miles.

Records available.- October 1928 to September 1942. September 1909 to September 1913 

(fragmentary), at site 0.3 mile downstream.

Average discharge.- 14 years (1928-42), 275 second-feet.

Extremes.- Maximum discharge during year, 11,000 second-feet Feb. 6 (gage height, 12.70 

feet), from rating curve extended above 4,500 second-feet by logarithmic plotting; 

minimum, 115 second-feet Oct. 1.

1928-42: Maximum discharge, 23,000 second-feet Dec. 11, 1937 (gage height, 23.4 

feet, from floodmarks), from rating curve extended above 3,900 second-feet on basis 

of slope-area studies; minimum, 49 second-feet Dec. 13, 1932.

Remarks.- Records good. No large diversions.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

118

118

118

118

118

118

118

118

118

118

118

120

123

123

120

118

118

118

126

126

126

120

120

123

123

126

173

161

143

132

140

Nov.

158

300

215

234

170

155

146

a 140

a!35

a!30

a!30

alSO

a!30

a!40

a 170

a220

a200

a 170

140

137

134

134

131

128

131

128

128

131

203

456

-

Dec.

285

1,660

2,320

625

410

333

285

251

235

222

210

200

242

1,380

2,960

3,880

1,390

1,020

1,020

976

751

607

612

512

464

436

440

1,190

985

814

580

Jan.

444

378

343

313

292

279

1,160

976

688

560

500

460

424

392

371

368

340

316

299

285

275

464

940

1,270

1,400

1,320

3,060

1,750

1,040

823

697

Feb.

688

1,890

1, 180

1,840

2,070

5,690

2,000

1,170

868

706

589

516

464

424

399

378

358

341

321

314

324

308

295

314

298

289

279

270

-

-

-

Mar.

263

263

263

260

263

276

266

263

273

289

348

446

399

382

355

327

314

311

295

282

279

279

276

282

266

257

254

254

260

266

289

Apr.

295

289

441

1,170

1,070

746

589

532

524

572

556

580

900

1,150

760

850

774

625

594

602

572

625

564

520

520

482

580

568

493

532

-

Hay

556

496

478

475

460

468

489

524

552

524

572

516

482

475

524

568

540

536

544

630

746

796

710

688

962

769

620

616

552

508

486

June

489

508

512

536

589

594

544

540

560

564

532

512

512

540

568

540

512

504

493

464

450

453

471

471

468

421

399

396

410

421

-

July

439

439

439

424

428

389

368

351

341

334

331

308

295

279

276

276

270

266

266

263

250

241

234

231

225

219

216

207

201

198

189

Aug.

186

180

177

174

168

165

163

163

160

158

155

155

152

150

150

147

147

145

145

142

142

139

139

137

137

137

137

137

139

137

134

Sept.

134

134

134

134

132

132

132

132

137

134

132

129

126

126

126

126

124

124

124

124

121

121

121

121

121

121

121

121

121

121

-

Month

Water year 19*1-42 ........ ........ ....

Secondfoot-days

179,629

22,227

24,583

9,100

19,075

17,862

14,973

9,193

4,697

3,806

161,742

Maximum

5,980

3,060

5,690

446

1,170

962

594

439

186

137

5,690

Minimum

128

118

275

270

254

289

460

396

189

134

121

118

Mean

492

717

878

294

636

576

499

297

152

127

443

Runoff in 

acre-feet

10,020

356,300

44,09d

48,760

18,050

37,830

35,430

29,700

18,230

9,320

7,550

320,800

a No gage-height record; discharge computed on basis of records for Chlco Creek near Chlco and 

Antelope Creek nsar Red Bluff.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
THOMAS CREEK EASI1I 279

Thomas Creek at Paskenta, Calif.

Location.- Water-stage recorder, lat. 39°52', long. 122°33', in IJWi sec. 4, T. 23 N., R. 

6 W., half a mile upstream from Paskenta and 4i miles downstream from Hill Creek. 

Prior to June 21, i^'42, water-stage recorder at site 1,000 feet upstream.

Drainage area.- 186 square miles.

Records available.- October 1920 to September 1942, at various sites close to Paskenta, 

(prior to January 1921, £age heights\£nly).

Average discharge.- 21 years (1921-42), 255 second-feet.

Extremes.- 1 lax1rim discharge during year, 8,120 second-feet Feb. 5 (gage height, 11.62 

feet, site and datum then in use); r.iinirum, 3.3 second-feet Aug. 31.

1921-42: Maximum discharge observed, about 16,600 second-feet liar. 26, 1928 (gage 

height, 10.5 feet, site and datum then in use), from rating curve extended above 

9,000 second-feet; no flow at times in 1921, 1922, 1924, 1926, 1929-34, 1939.

Remarks.- Records good after Hay 1 and fair before except those for Apr. 8-30, which are 

poor. No diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

17' 16

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

11

12

11

11

11

11

11

11

11

11

11

12

13

12

12

12

12

12

12

14

13

13

13

1?

13

16

26

34

23

18

16

Nov.

18

109

61

89

50

33

26

23

21

20

19

18

18

18

36

68

67

51

40

34

30

29

28

26

25

23

23

24

98

266

Dec.

146

4,130

2,450

560

350

233

176

138

114

98

80

67

85

284

2,500

2,610

1,300

4,130

2,320

1,350

P96

666

680

560

472

408

404

627

532

377

310

Jan.

255

234

222

206

198

203

2,290

1,840

1,140

930

836

810

740

662

597

548

484

428

385

348

324

440

763

1,730

1,670

2,420

3,130

1,700

1,180

946

815

Month

Feb.

1,060

2,360

1,560

2 , ?50

3,710

4,650

2,330

1,440

1,200

1,050

935

847

755

671

614

577

536

524

484

456

440

408

377

370

344

330

313

296

_

_

-

October ....................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January. ...................................

February ...................................

March. .....................................

April. .....................................

HSv ay ........................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1941-42 .... . ...............

Mar.

292

313

313

313

385

448

412

428

440

492

500

476

440

448

424

381

381

385

362

344

341

341

338

330

313

292

282

279

279

292

330

Apr.

344

330

362

604

735

684

635

600

550

560

560

580

800

900

850

650

900

900

850

700

660

650

600

550

500

460

490

490

460

500

-

Secondfoot-days

431

1,391

29,053

222,488

28,474

30,187

11,394

18,654

36,246

7,146

1,414

350.5

214.0

145,754.5

Hay

476

456

440

432

420

436

488

560

581

504

468

416

374

377

428

432

436

452

500

627

725

712

593

556

1,030

785 "ilO

556

500

456

420

Maximum

34

266

4,130

7,860

3,130

4,650

500

900

1,030

456

92

21

13

4,650

June

420

436

404

400

420

396

344

327

313

299

273

249

243

249

252

220

195

180

164

165

h!45

h!42

h!40

h!31

h!20

h!20

112

104

99

94

-

Minimum

11

18

67

11

198

296

279

330

374

94

21

5

5.5

5

Peak discharge.- Dec. 2 (8 p.m.) 7,280 sec. -ft.; Dec. 16 (11 a.m. 3,550 s

July

92

87

82

78

73

69

63

60

56

52

49

48

46

44

43

42

40

38

37

36

33

31

29

27

25

24

23

22

22

22

21

Aug.

21

20

19

18

17

17

16

14

14

14

13

13

12

12

11

11

10

9.5

8.5

8.5

8

7

7

7

7

7

6.5

6.5

6

5

5

Mean

13.9

46.4

937

610

919

1,107

368

fi22

524

256

45.6

11.3

7.13

399

ec.-ft.; Dec

Sept.

6.5

7

7

7

7

7

7

8.5

13

11

11

9.5

8.5

8

7.5

7

7

6.5

6.5

6

6

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

"

Runoff in 

acre-feet

855

2,760

57,630

441,300

56,480

61,460

22,600

37,000

3E,220

14,170

2,000

695

424

239,100

. 18 (6

(11 D.IT. ) 8,120 sec.-ft.

h Computed from staff-gage readings.

Mote.- Vo gr.ge-hei"ht record Apr. 8-30, June 20; disr-harge Internolatel or commuted on basis of 

records for Mill rreek near Los Molinos and f.lear Creek near Ir.o.

Time tasls; Pacific standard time prior to 2 n.m., ?et>. 9, 1942; Jacific war t imp t! °reafter. 

To convert var tin" to standard time, subtract 1 hour.
280 DEER CREEK BASIN 

Deer Creek near Vina, Calif.

Location.- Water-stage recorder, lat. 40°01', long. 121°56', in NEi sec. 23, T. 25 N., 

R. 1 w., 0.8 mile upstream from concrete diversion dam and 9 miles northeast of Vina. 

Altitude of gage, about 480 feet (from topographic map).

Drainage area.- 200 square miles.

Records available.- October 1911 to December 1915, March 1920 to December 1937, January 

1939 to September 1942. s

Average discharge.- 23 years (1912-15, 1920-37, 1939-42), 294 second-feet.

Extremes.- Maximum discharge during year, 11,000 second-feet Feb. 6 (gage height, 11.72 

feetj; minimum, 116 second-feet Oct. 1-4.

1911-15, 1920-42: Maximum discharge, 23,800 second-feet Dec. 10, 1937 (gage height, 

19.2 fe^t, present datum, from flood^arks), from rating curve extended above 8,000 

second-feet; minimum, 43 second-feet Dec. 13, 1932.

Remarks.- Records good. No diversions above station.

Rating table, water ye

2.4

2.5

2.6 

2.8 

3.0

102

117

134

174

230

1941-42 (gage height, in feet, and-discharge, 

in second-feet)

3.2 

3.4 

3.6 

3.9 

4.2

296

370

456

606

770

4.5 

4.8 

5.1 

5.5 

6.0

950

1,140

1,350

1,660

2,150

6.5 

7.0 

7.8

2,750

3,430

4,580

5,730

7,040

Discharge, in secorfd-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

116

116

116

116

117

117

117

117

117

119

122

126

122

120

120

120

120

119

119

119

122

122

120

120

122

145

152

139

127

120

120

Nov.

154

233

182

a!80

a!50

a!40

a!30

a!30

a!20

a!20

a!20

a!20

a!20

a!30

a!40

alBO

a!60

152

138

131

127

126

124

124

124

124

124

126

184

303

Dec.

195

1,060

1,730

544

332

259

218

192

179

172

165

159

246

1,590

2,960

4,090

1,630

1,360

1,180

1,200

926

732

720

585

514

451

466

1,260

1,300

1,060

710

Jan.

524

438

390

351

318

307

1,020

1,290

950

794

693

622

549

509

466

447

410

378

351

328

310

597

1,540

2,320

2,480

2,110

3,880

2 , 570

1,700

1,320

1,080

Feb.

1,010

2,760

1,900

2,800

3,170

7,040

3,360

2,110

1,550

1,230

1,020

878

759

682

G33

575

529

494

461

433

424

406

378

394

355

340

328

318

_

_

-

liar.

307

303

300

293

300

310

296

300

307

328

390

442

410

406

37B

366

359

355

336

325

321

321

321

340

310

296

293

293

303

307

340

Apr.

351

340

504

1,270

1,410

1,060

872

7B2

759

800

782

788

,110

,560

,200

,230

,130

980

932

914

860

872

818

742

720

666

754

759

693

737

-

Hay

794

726

676

671

628

617

622

633

649

660

704

671

633

606

660

704

660

638

633

666

720

759

732

715

980

1,050

P84

842

782

720

666

June

628

601

575

554

544

534

519

494

480

466

447

428

410

398

390

37B

362

351

336

325

310

303

293

286

279

272

!?62

252

L43

236

-

July

230

224

221

215

209

203

203

197

195

192

190

187

184

184

182

179

179

177

174

172

170

167

165

163

161

161

159

159

159

159

156

Aug.

156

154

154

152

150

150

148

147

147

145

145

145

143

141

139

139

136

138

136

136

136

136

134

134

134

134

1S4

134

136

136

134

Sept.

134

134

132

132

132

131

131

131

134

134

131

129

127

127

126

126

124

124

124

124

124

124

124

124

124

124

124

124

124

124

-

Month

May.................. ......................

Water year 1941-42 ......................

Secondfoot-days

13,956

186,360

Maximum

r.28

156

7,040

Minimum

116

112

318

340

606

236

156

134

116

Mean

122

909

553

1,001

1,298

331

880

713

399

1R3

141

128

516

Runoff in 

acre feet

7,510

55,900

400,200

61,570

72,070

20,340

52,350

43,840

23,710

11,260

0,700

7,590

373,600

Peak dischar.
CHICO CREEK BASIN 

Chlco Creek near Chlco, Calif.

281

Location.- Water-stage recorder, lat. 39°46', long. 121°46», In Arroyo Chlco Grant, 1 mile 

upstream from golf clubhouse In Municipal Park and 6 miles northeast of Chico, Butte 

County. Altitude of gage, about 400 feet (from topographic map).

Drainage area.- 68.3 square miles.

Records available.- Nay 1930 to September 1942.

Average discharge.- 12 years, 145 second-feet.

Extremes.- Maximum discharge during year, 6,560 second-feet Feb. 6 (gage height, 13.85 

feet); minimum, 19 second-feet Oct. 4.

1930-42: Maximum discharge, 8,260 second-feet Dec. 10, 1937 (gage height, 16.6 

feet), from rating curve extended above 5,000 second-feet on basis of rating at cable 

gage, velocity-area studies, and logarithmic plotting; minimum, 10 second-feet (regulated) Dec. 11, 1932, and Aug. 15, 1939.

Remarks.- Records fair. No large diversions above station.

Discharge, in second-feet. water year October 1941 to September 1942

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

Oct.

37

27

27

27

37

28

37

27

27

27

37

27

26

30

29

28

38

28

29

31

31

31

30

29

30

31

49

39

33

31

31

Nov. Dec.

39' 73

76

55

52

41

37

35

35

34

33

33

33

33

33

33

46

a43

4O

37

35

35

35

34

34

33

33

33

34

46

145

a23O

a45O

1S3

111

81

66

59

53

51

47

46

64

aeoo

a2,400

a2,650

a950

953

690

694

526

395

40O

330

386

249

260

731

S8S

725

552

Jan.

392

308

260

229

307

190

521

697

542

440

378

337

300

271

249

239

319

2O5

189

176

169

303

906

1,670

1,990

1.47O

2,240

1,560

9S9

714

369

Feb.

498

1,650

1,530

3,330

2,83O

5,220

2,540

1,360

909

672

526

428

363

317

2S4

257

237

219

302

190

19O

181

166

166

159

149

143

137

_

_

-

Mar.

130

127

134

121

116

115

111

108

108

109

133

129

132

149

141

137

132

129

124

120

115

112

109

115

111

105

1O1

99

98

95

98

Apr.

106

98

167

589

877

646

469

384

345

347

316

292

329

664

576

529

505

457

419

386

351

323

296

274

356

340

268

284

378

31 0

-

Hay

393

358

327

304

280

258

240

325

218

216

247

249

238

225

245

256

242

227

211

199

191

184

178

173

28O

402

316

380

346

315

191

June

172

162

153

142

131

124

117

112

108

103

97

92

88

85

78

80

77

74

72

69

68

64

61

59

58

58

55

54

52

51

-

July

50

49

47

47

47

46

45

45

44

44

44

43

43

43

41

41

41

41

40

39

38

38

38

40

4O

39

39

39

59

39

39

Aug.

38

37

37

36

36

36

35

34

35

35

35

35

35

35

34

32

32

31

32

34

35

34

34

35

35

35

35

34

32

32

32

Sept.

31

32

32

32

31

30

30

31

31

32

31

31

30

30

31

31

34

31

31

31

31

31

31

31

31

31

31

31

30

29

-

Month

Decenber ...................................

Calendar year 1941 ......................

March. .....................................

April ......................................

May.................................. .. ..

July .......................................

Water year 1941-42 ......................

Secondfoot-days

921

16,010

103,129

11,381

1,308

89,838

Maxima

49

3,650

3.44O

877

5,220

Minima

37

33

46

Z1

95

98

38

27

Mean

29.7

42.2

516

283

118

379

90.5

42.2

246

Runoff in 

acre-feet

1,830

2,510

31,760

204,600

37,550

47,290

7,250

22,570

5,390

3,590

178,200

Peak discharge.- Dec. 15, 3,700 sec.-ft.; Dec. 28 (5 a.m.) 1,1OO sec.-ft.; Jan. 34 (7:3O p.m.) 

2,550 sec.-ft.; Jan. 27 (8:3O a.m.) 2,770 sec.-ft.; Feb. 2 (11:3O a.m.) 3,100 sec.-ft.; Feb. 6 (6:30 

a.m.) 6,560 sec.-ft.

a No gage-height record; discharge computed on basis of floodmarks and records for Butte Creek 

near Chlco.

Time basts; Pacific standard time prior to Z a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.

530350 O - 43 - 19
282 STONY CREEK BASIN

Stony Creek near Hamilton City, Calif.

Location.- Water-stage recorder, lat. 39°44'40", long. 122°05'50", In SEi sec. 21, T. 22 

N., R. 2 W., 4.5 miles west of Hamilton City, 5 miles east of Orland, and 8 miles upstream from mouth. Datum of gage Is 188.11 feet above mean sea level, datum of 1929 

(Corps of Engineers, U. S. Army, bench mark).

Drainage area.- 761 square miles.

Records available.- January 1941 to September 1942.

Extremes.- Maximum discharge during year, 23,800 second-feet Feb. 6 (gage height, 4.57 

feet;; no flow Nov. 24-26, 28, 29.

1941-42: Maximum discharge, 37,500 second-feet Mar. 1, 1941 (gage height, 6.35 

feet), from rating curve extended above 30,000 second-fe.et: no flow Nov. 24-26, 28, 

29, 1941.

Remarks.- Records fair. Flow regulated by East Park Reservoir (capacity, 51,000 acrefeet}, Stony Gorge Reservoir (capacity, 50,200 acre-feet), and diversions for Irrigation of Orland Project, U. S. Bureau of Reclamation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

5

4.0

1.6

3.2

9.5

12

9.5

7

3.6

7

8

14

16

18

14

16

19

16

12

13

12

4.0

2.8

9

14

20

18

14

11

11

Nov.

11

10

16

20

18

17

16

13

15

16

13

12

7

2.0

10

7

10

11

6.5

5

3.6

2.8

8

4.4

U

0

6.5

0

7.5

19

-

Dec.

20

24

694

435

235

135

87

67

56

50

44

39

38

236

S29

1,980

1,560

2,880

3,900

2,850

2,040

1,510

1,320

1,200

1,010

926

902

1,820

4,270

2,790

1,900

Jan.

1,280

965

842

770

720

680

868

3,340

3,170

2,550

2,220

1,980

1,730

1,560

1,420

1,300

1,240

1,200

1,130

1,070

1,960

1,070

3,250

9,260

11,000

6,820

6,430

5,940

4,270

3,380

2,820

Feb.

2,670

9,170

6,950

6,430

11,600

21,500

14,400

8,660

5,720

4,370

3,560

3,000

2,610

2,280

2,040

1,860

1,690

1,560

1,500

1,350

1,260

1,210

1,110

1,040

969

900

864

828

-

-

-

Mar.

774

738

738

690

675

690

660

660

645

600

705

774

645

615

846

969

846

S10

660

526

493

471

460

428

418

386

355

339

307

283

262

Apr.

275

248

262

602

2,080

2,900

2,520

2,080

1,830

2,120

2,240

2,010

1,900

2,820

2,610

2,400

2,610

2,610

2,200

2,040

1,900

1,790

1,620

1,460

1,350

1,260

1,210

1,160

1,080

1,040

-

Hay

1,080

969

900

628

73S

675

615

548

526

515

526

493

460

439

450

460

439

428

397

386

418

439

428

408

439

526

515

439

439

386

355

June

331

355

355

323

275

242

215

190

154

135

135

108

84

80

65

57

52

49

a45

a40

a35

a30

a25

a20

17

20

16

16

14

3-4

July

12

12

11

11

17

11

9.5

9

8

8

6.5

11

16

24

9

8

8

12

9.5

10

13

14

15

16

9lb

9

5

5

4.8

6

4.8

Aug.

6

12

9.5

14

7.5

7.5

11

11

5

4.8

6

6

16

23

20

11

14

16

20

6

9.5

16

9

20

22

9.5

6

6

12

5.5

9.5

Sept.

12

9.5

24

18

13

11

14

16

15

IS

24

12

5

8

4.4

11

7.5

1.8

1.9

1.7

4.8

3.2

3.6

3.2

1.8

5.5

9

9

10

9.5

-

Month

May. ........... . ...... .............. .

Water year 1941-42 ... .............. ...

Secondfoot-days

331.2

287.3

35,847

_

85,335

121,101

18,468

52,227

16,664

3,497

324.6

351.3

287.4

334,720.8

Maximum

20

20

4,270

_

11,000

21,500

969

2,900

1,080

355

24

23

24

21,500

Minimum

1.6

0

20

_

680

828

262

355

14

4.8

4.8

1.7

0

Mean

10.7

9.58

1,156

_-

2,753

4,325

596

1,741

538

117

10.5

11.3

9.58

917

Runoff in 

acre- feet

657

570

71,100

_

169,300

33,050

6,940

644

697

570

664,000

Peak discharge.- Jan. 24 (10 p.m.) 16,300 sec.-ft.; Feb. 2 (9 a.m.) 12,300 sec.-ft.; Feb. 6 (9 

a.m.) 23,800 sec.-ft.

a No gage-height record; discharge interpolated.

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
BUTTE CREEK BASIN 

Butte Creek near Chico, Calif.

283

Location.- Water-stage recorder, lat. 39°44', long. 121°42', in sec. 25, T. 22 II., R.

2 E., half a mile downstream from Little Butte Creek and 7i niles east of Chico.

Altitude of gage, about 350 feet (from topographic map). 

Drainage area.- 148 square miles.

Records available,.- November 1930 to September 1942. 

Average discharge.- 11 years (1931-42), 414 second-feet. 

Extremes.- Maximum discharge during year, 9,970 second-feet Feb. 6 (gage height, 12.70

feet); minimum, 100 second-feet Sept. 21.

1930-42: Maximum discharge, 17,000 second-feet Dec. 11, 1937 (gage height, 18.9

feet), from rating curve extended above 6,000 second-feet on basis of logarithmic

plotting; nini"ium recorded, 22 second-feet (regulated) Aug. 19, 1939. 

Remarks.- Records good except those for period of no' gage-height record, which are fair.

Butte Creek receives considerable water above station frora West Branch of Feather

River by, way of De Sabla and Centerville power plants. Pacific Gas fc Electric Co. has

furnished the following record of this flow for 1941-42:

Month

July. .............................

September. ........................

Water Tear 1941-42. .............

(aeoond-feet )

59,6 

52 9

71 3

57.2

64.1

Runoff 

(a ore -feet )

3,670

3,400

46.4OO

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

146

143

146

146

148

148

148

141

129

148

150

152

148

148

150

146

143

140

143

153

146

153

148

146

153

148

225

184

160

145

145

Nov.

178

335

206

255

178

164

158

150

140

150

150

148

152

160

146

207

187

172

162

157

153

142

138

145 1 C T

145

155

157

200

375

-

Dec.

252

1,130

1,730

644

404

339

300

284

258

255

249

243

453

2,450

4,450

,090

,820

,870

,570

,460

1,170

935

972

805

709

612

644

1,360

1,430

1,150

958

Jan.

742

612

550

491

462

444

1,080

1,380

1,060

890

791

763

690

638

605

612

566

539

496

482

462

771

1,430

2,610

2,930

2,570

4,190

2,690

1,930

1,570

1,330

Feb.

1,260

3,170

1,890

3,680

4,400

7,600

3,910

2,600

2,070

1,730

1,560

1,430

1,270

1,150

1,060

968

916

844

786

740

747

702

653

653

613

575

553

526

-

-

-

Month

October ..................... ...........

November ................................

December ................................

Calendar year 1941 ...................

January. ...................................

February ...................................

March. .....................................

April. .....................................

Uftrr ay ............ ........................ . .

June ............. ......................

July.. ..................... ...............

August .....................................

September ..................................

Water year 1941-42 ......................

Mar.

507

497

488

469

473

464

446

446

441

460

586

608

558

558

521

497

488

478

455

441

428

424

382

370

354

343

332

321

318

321

343

Apr.

394

370

657

1,520

1,590

1,220

948

806

766

851

786

760

1,020

1,560

1,290

1,260

1,180

1,070

1,030

981

890

870

806

740

714

659

780

773

702

812

-

Secondfoot days

4,669

5 328

34,976

258,839

36 , 376

47,056

£7)805

19,929

14,161

6,672

4,924

4,442

221,155

Peak discharge.- Dec. 15 (10 a.m.) 5,860 sec. -ft.; Js

May

929

800

700

650

600

600

550

550

550

550

500

500

500

500

500

600

500

600

600

600

600

600

600

600

800

1,000

900

800

750

700

700

Maximum

225

375

4,430

6,530

4,190

7,600

608

1,590

1,000

680

277

167

165

7,600

June

680

670

659

653

653

647

618

591

580

575

537

488

446

478

478

460

446

424

415

403

398

350

354

321

350

343

290

287

277

290

-

Minimum

129

138

243

124

444

526

370

50 C

277

165

129

129

July

277

274

274

258

227

242

251

242

242

239

227

192

227

224

218

221

215

215

210

202

195

197

190

184

184

172

177

187

170

165

174

Aug.

160

156

165

162

165

165

167

165

162

162

160

162

162

167

162

133

162

Io2

153

156

153

160

142

150

153

153

156

165

167

160

149

Mean

151

178

1,128

709

1 173

1^716

446

927

643

472

215

159

148

606

Sept.

153

165

160

156

151

135

162

162

168

162

162

156

131

162

160

149

149

140

144

137

129

149

146

133

137

144

140

133

140

133

-

Runoff in

acre-feet

9,260

10,570

69,370

513,400

72,150

95,320

27,410

55,150

39 , 530

26,090

13,230

C,770

8,810

438,700

n. 24 (6 p.m.) 3,960 sec. -ft.; Jan. 27 (9

5,600 sec.-ft.; Feb. 2 (12 m. ) 3,900 sec.-ft.; Feb. 4 (11 a.m.) 3,990 sec.-ft.; Feb. 6 (6 

a.m.) 9,970 sec.-ft.

Note.- No e^age-heit^t record May 2 to June 2; discharge computed on basis of records for Chico 

Creek near Chico and Battle Creek near Cottonwood.

Tine basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
284 FEATHER RIVER BASIN

Lake Almanor near Prattvllle, Calif.

Location.- Staff gage, lat. 40°10'30", long. 121°05'25", in NWJ sec. 28, T. 27 N., R. 8 

E.,.at outlet tower at dan on North Fork of Feather River and 5 miles southeast of 

Prattvllle. Datum of gage is 4,400 feet above mean sea level; gage readings have 

been reduced to elevations above mean sea level.

Drainage area^- 506 square miles.

Bcords available.- October 1913 to September 1942 (1913 to 1930, summary records only).

extremes.- Jfaxlmum contents observed during year, 649,800 acre-feet June 30 (elevation, 

4,474.00 feet); minimum observed, 454,900 acre-feet Nov. 28 (elevation, 4,464.39 feet).

1913-42: Maximum contents, 798,900 acre-feet June 9, 1928 (elevation, 4,480.5 

feet); minimum, 5,230 acre-feet Feb. 5, 1918 (elevation, 4,416.1 feet).

Remarks.- Lake is formed by earth fill dam; storage began in July 1913; dam raised to 

elevation 4,455 feet above mean sea level in 1917 and to 4,515 feet above mean sea 

level in 1927. Usable capacity, 649,800 acre-feet between elevations 4,400 feet 

(bottom of outlet to river) and 4,474 feet (present upper storage limit). Water is 

diverted by tunnel to Butt Valley Reservoir for use In Caribou power plant and some 

is released at Almanor Dam down natural channel of river. (See records for North Fork 

of Feather River near Prattvllle on following page.) Records below show contents at 

mldnlGht interpolated from readings made at 7 a.m., all of which is available for 

diversion to Butt Valley Reservoir except 15,700 acre-feet (below elevation 4,429 

feet) that can only be released down the river.

Cooperation.- Record of contents furnished by Pacific Gas & Electric Co., under general 

supervision of the Geological Survey, In connection with a Federal Power Commission 

project.

Contents, In acre-feet, water year October 1941 to September 1942

Day

I

2

3

4

S

S

7

9

10

11

12

13

14

IS

16

17

18 

19 

20

21

22

ov<cd

24

25

26

27

28

29

30

31

Oct.

491,800

491,000

490,300

489.3OO

488,500

487,600

486,800

486,000

485,100

483,900

482,800

431,800

480,900

479,900

479,500

478,800

478,000

477,400

476,700 

475, 5OO

475.00O

474,400

473,600

472,900

472,300

471, BOO

472,100

471,600

471, OOO

47O.2OO

47O,OOO

HOT.

469,700

469,300

468,700

468,300

468, OOO

467,800

467,800

467,400

467,400

467,000

465,300

464,200

462,900

462,300

462,000

462,700

462,300

461,600

461,200 

460,300

459,500

458,800

458,200

457,600

456,900

456, OOO

455,2OO

454,900

456,000

455.4OO

-

Dec.

456,000

460,600

468,700

471,000

471, 8OO

471,800

471,400

471,200

471,200

471,200

470,600

470,400

471,400

474.2OO

473,000

481,100

481,300

480.9OO

482,200 

486.8OO

489,100

489,500

491,600

496,300

497,200

498,800

499,800

5O2,3OO

503,700

504,600

505,400

Jan.

505,600

505,600

505,600

505,800

505,800

506,200

507,800

508,700

509,500

510, 1OO

511, 3OO

512, 7OO

515,000

513,400

521,400

523,500

525,300

526,900

528,700 

530, 9OO

533,700

536,900

538,800

537,900

535,900

534, 5OO

534.7OO

534,100

531,100

526,700

525,300

Feb.

523,500

523.OOO

522, OOO

520,200

519,600

521,400

519,600

516,000

513,100

511, 5OO

510,700

510,100

509,500

509,300

509,500

509,100

509,500

511, 5OO

512,300 

513,100

514, 4OO

516,000

517,000

518,200

519,000

519, SOO

520,800

521,200

-

-

-

Mar.

521,600

521,300

582,400

524,500

526,300

526,700

526,300

526,500

526,700

526,700

526,900

526,900

525,500

524,100

522, 4OO

52O.6OO

518,400

516,600

515, OOO 

514,200

513,500

512,500

512,300

512, 7OO

512,900

512,900

512,900

512,900

513,100

513,300

513,700

Apr.

514,200

515,600

613, SOO

582,800

525,500

527,500

529, 500

532,100

535,100

537, 9OO

540,800

543,200

547,000

552, 7OO

556,200

558,000

558,400

557,600

557,200 

557, SOO

560,300

562,800

564, SOO

567, 9OO

571,400

574,700

578, OOO

581,400

585,900

589,900

-

Hay

593,100

596,000

598,300

601,100

603.8OO

604,700

605.7OO

606,600

6O7.2OO

607,900

609,200

611,300

611,700

61O.4OO

608,300

606,000

603,800

602,100

601,500 

602,800

606,000

606,600

606.2OO

606,600

609,400

61O.900

610,900

612,400

613,200

614,100

614,500

June July

614,900

616,400

619,200

620,900

622,900

625,000

627,400

630,000

631,700

634,600

635.600

637, 4OO

638,700

64O.2OO

641,300

642, 6OO

643,500

643,900

643, 7OO 

643, 7OO

643, 7OO

643,900

645,000

646, SOO

648,700

648,500

646,500

649,000

649,600

649,400

649,400

649,200

649,200

649,200

647,900

647,600

648,300

649,200

649,600

649,200

648,300

647,900

647,000

646,300

646, 1OO

646.100

647,200 

648,300

649,000

648,300

647, 4OO

647,000

646, SOO

645,500

644.400

643,300

649,400 1642,200

649.8OO 641,300

64O.4OO

Aug.

639,600

638,700

638,000

637,800

636,300

635,200

634,300

633,500

632,600

631,700

630,900

630,000

629,300

628,700

627,300

626,900

625,900

624,600

624,200 

623,500

622,600

622,200

622,900

622,900

622,400

621,100

619,200

617,500

615,300

613,600

613,000

Sept.

611, 7OO

61O,4OO

609,200

607,400

606,400

605,100

603,600

601, 9OO

600,700

59a,600

597,500

596.600

595.400

593,900

592,400

591,200

589, 500

587,200

585,500 

583,500

581,600

579,500

577,400

575,300

573,900

572,200

570,600

568,700

566,900

565,000

-

Monthly elevation and contents, Hater year October 1941 to September 1942

Date

Dec. 31...............

Calendar year 1941..

Water year 1941-42..

Elevation 

(feet)

,466.36 

,405.20 

,464.42 

,467.04

_

,468.05 

,467.34 

,467.46 

,471.21 

,472.37 

,474.OO 

,473.57 

,472.30 

,470.01

-

Contents 

(acre-feet)

492,200 

470,000 

455,400 

505, 4OO

_

525,300 

521,200 

513,700 

589,900 

614,500 

649,600 

640,400 

613,000 

565,000

-

Change In contents 

during month 

(acre-feet)

-22,200 

-14,600 

+5O.OOO

+126,500

+19,900 

-4,100 

-7,500 

+76,200 

+24.6OO 

+35, 300 

-9,400 

-27,400 

-48,000

+72.8OO

Tlrae basis: Pacific standard tine prior to 2 a.m., Feb. 9, 1942; 

Pacific war tlae thereafter. To convert war tine to standard time, 

tract 1 hour.
FEATHER RIVER BASIN 

North Fork of Feather River near Prattville, Calif.

285

Location.- Water-stage recorder and compound rectangular concrete weir, lat. 40°10', 

long. 121°0o', in SWi sec. 28, T. 27 N., R. 8 E. f half a mile downstream from 

Almanor Dam, 5 miles southeast of Prattville, and about 9 miles upstream from Butt 

Creek. Altitude of gage, about 4,380 feet (from topographic map).

Drainage area'.- 507 square miles.

Records available.- March 1914 to September 1942 (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.

Average discharge.- 36 years (1905-10, 1911-42), 387 second-feet, including diversion 

through Almanor-Butt Creek tunnel.

Extremes.- Maximum discharge during year, 2,690 second-feet (regulated) May 17 (gage 

height, 6.92 feet); minimum, 3.8 second-feet (regulated) Oct. 1 to Dec. 11. Extremes 

do not include diversions through Almanor-Butt Creek tunnel.

1905-42: Maximum discharge, 10,000 second-feet Mar. 19, 1907, before construction of dan (gage height, 16.2 feet, at former site), from rating curve extended above 

3,700 second-feet; no flow (result of regulation! Apr. 15, 16, 1914, at times during 

period January to April 1919, and on Apr. 21, 1923.

Remarks.- Records good except those for Mar. 9-14, which are fair. For storage, see

records for Lake Almanor near Prattville. Tables of daily discharge show release from 

Lake Alnanor down North Fork of Feather River. Tables of monthly dlacharge show total 

runoff also. Water is diverted for power from Lake Alnanor through Almanor-Butt 

Creek tunnel to Butt Creek.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished 

by Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1941-42 (gage height. In feet, and discharge, 

In second-feet)

1.3

1.4

1.5

1.6

1.7 21 2.1 62

1.9

2.0

39

50

2.3

2.4

91

107

2.6 

2.8 

3.0 

3.3

144 

186 

236 

33O

1,150 

1,510 

1,910 2,310 ' 

Discharge, in second-feet, water year October 1941 to September 1942

3.6 

3.9 

4.2 

4.6

440

556

706

915

5.0 

5.5 

6.0 

6.5

7.0 2,760

Day

1

2

3

4

5

6

7

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.

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

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

3.8

3.8

3.8

Nov.

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

3.8

3.8

3.8

3.6

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

-

Dec.

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

3.8

11

15

15

89

899

2 ,060

2,460

268

134

454

1,340

133

76

32

32

32

32

32

32

32

Jan.

33

33

33

34

34

33

33

32

32

31

31

32

32

32

31

31

31

32

32

32

32

32

841

2,260

2,640

2,630

2,640

2,620

2,660

2,650

2,630

Feb.

2,640

2,560

2,330

2,520

2,580

2,570

2,580

2,600

2,590

2,110

1,580

1,230

976

910

813

813

813

626

540

540

540

540

540

540

540

544

544

544

-

-

-

Mar.

548

557

374

253

253

124

52

52

a52

a!55

a490

a610

a860

al.OOO

1,02O

1,010

1,010

1,010

850

562

557

562

282

65

65

65

65

65

a 64

a63

a62

Apr.

a 61

a 61

a60

178

772

772

777

777

777

777

782

782

7B2

782

782

1,580

2,240

2,230

2,240

1,470

1,020

1,020

845

365

236

336

236

2S-3

236

236

-

May

239

239

239

239

239

239

239

239

239

239

239

236

576

1,960

2,640

2,650

2,670

2,480

2,050

1,480

643

2,310

2,630

2,650

2,640

2,630

2,110

1 , 500

1,070

3 ,070

1,070

June

846

360

256

258

258

261

261

148

65

65

63

63

63

65

68

111

210

370

436

436

406

132

55

48

43

48

48

45

4tf

127

-

July

428

266

60

48

48

48

48

48

48

48

48

48

48

48

48

43

43

48

48

48

48

48

48

48

48

4a

48

4fi

43

 18

43

Aug.

47

47

47

47

47

47

47

47

47

47

47

47

46

46

46

46

46

46

46

46

46

75

199

323

323

323

3H3

327

313

323

323

Sept.

323

323

320

320

320

320

320

32C

313

311

316

315

316

316

434

518

516

516

518

516

518

518

518

518

518

513

518

518

51G

518

-

Konth

Calendar year 1941 . .

May. ......... .........

July. ..................

September. .............

Water year 1941-42 .

Observed

Secondfoot-days

117.8 

114.0 

8,219.8

147,836.8

22,279 

33 , 253 

12,757 

23,348 

39,994 

5,672 

2,118 

3,840 

12,058

169,370.6

Maximus

3,B 

3.8

2,430

2,660

2,060 

2,640 

1,020 

2,240 

2,670 

846 

428 

327 

518

2,670

Minimum

3.8 

3.8 

3.8

3.5

31 

540 

52 

60 

236 

43 

48 

46 

311

3.8

Mean

3.80 

3.80 

265

405

719 

L36G 

412 

778 

1,290 

109 

63. 3 

124 

42V?

464

Runoff in 

acre-feet

234 

2l'6 

16,300

293,200

44,190 

75,870 

25,300 

46,310 

79,330 

11,?50 

4,200 

7,620 

25,110

335,900

Diversion 

in 

acre-fee tt

58,180 

5f,830 

41,440

511,800

20,620 

1,620 

49,170 

8,330 

23,220 

51,340 

48,960 

52,640 

54,920

467.800

Adjusted for 

diversion

Clean

950 

959 

939

1,112

1,054 

1,395 

1,311 

913 

1,668 

1,060 

865 

980 

1,345

1.110

Runoff in 

acre-feet

58,410 

57,060 

57,740

805,000

64,810 

77,490 

74,470 

54,640 

102,600 

63,090 

53,160 

60,260 

80,030

803,800

t Diversion through Almanor-Butt Creek tunnel, conputed as difference in flow between the two stations on Butt Creek. There is some uimoas-ured Inflow between the two stations.

a No gage-height record; discharge computed on banis of rscords furnished by Pacific Gas and 

Electric Co.

Time baalsj Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 -hour.
286 FEATHER RIVER BASIN

North Fork of Feather River at Eig Bar, Calif.

Location.- Water-stage recorder, lat. 39°43', long. 121 °27', in NEi sec. 6, T. 22 N., 

R. 5 K., between railroad and highway bridges, a quarter of a mile downstream from 

Tig 3ar an1 G miles upstream from intake of power riant at Pig Bend. Altitude of 

gage, about 1,320 feet (from topographic map).

Drainage area.- 1,945 square miles.

Records available.- October 133a to September 1942. February 1911 to August 1930 and 

October 1931 to Septemier 1937, at site tnree-quarters of a mile upstream.

Average discharge.- 2C years (1911-12, Iyl3-20, 1921-30, 1931-37, 1939-42), 2,683 secondfeet.

Extremes.- Maximum discharge durinr year, 33,600 second-feet Feb. 6 (gage height, 20.5

 feet); minimum, 954 second'-feet"(rec'ulated) Oct. 5.

1911-37, 1939-42: faxlwn discharge, 06,900 second-feet Dec. 11, 1937 (gage 

height, 29.7 feet at present site, from floodmarks), from curve extended above 34,000 

second-feet by lorarithrric plotting; minimum, 188 second-feet (regulated) Nov. 6, 1939.

Remarks.- Records pood. Flow regulated by Lake Aliianor (see p. 274), Bucks Creek Reservoir (see p. 293), power plants, and diversions.

Cooperation.- Water-stage recorder record and one discharge measurement furnished by 

Pacific Gas fr Electric Co.

Rating table

3.1 

3.5 

4.0 

4.5 

5.0 

5.5

ster year 1941-42 (g8Re height, in feet, and dis 

in second-feet)

1,090

1,330

1,650

2,000

2,380

2,790

6.0 

6.5

7.0 

7.5 

8.5 

9.5

3,260

3,780

4,330

4,930

6,280

7,800

11.0

13

10,300

14,000

18,200

23,200

29,000

35,200

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1,580

1.49C

1 , 390

1,440

1,280

1,440

1 , 500

1,480

1,500

1,520

1.4F.O

1,410

1 , 520

1,590

] , 530

1,570

1,540

1,550

1,420

1,540

1,560

1.4PO

l.ROO

1.600

1,480

1 ,450

1 .72C

] ,640

1,590

1 . 580

1,580

Nov.

,550

,410

,710

,860

,760

,780

,770

,770

,520

,680

,660

,640

, r 90

,540

,520

,730

,660

,650

,620

,54C

,570

,7750

,500

,<5oc

,62C

,620

,680

,720

: ,°30

.T40

-

Dec.

. ,000

P,180

10,500

4,460

3,290

2,490

1,9130

L.230

2,080

L,010

2,030

2,100

2,lf>0

5,050

If ,300

19,600

14,000

12.7CO

10,400

7,640

6.240

%560

4.P70

4,140

3,410

3,190

3,260

3,210

3,42C'

3.550

3,360

Jan.

2,610

2,590

2,590

2,240

2,460

2,440

3 , 890

4,530

4,570

4,310

3,980

3,520

?,390

3,140

3,010

2,760

C,520

_,300

2,350

- ,270

2,180

2,660

4,340

9,°90

16,700

16,900

L4,3t'0

20,800

15,100

11, SCO

9,700

Feb.

9,280

11,200

12, ICO

13,200

16,100

31 , 500

23,500

15,800

12,800

10,900

8,940

7,860

6,870

6,180

5,4£0

5,370

5 , 220

5,010

4 , E r'0

4,410

4.440

4,020

3,810

3,960

3,940

3,870

3,870

3,480

-

-

-

Mcnth

October. ...... ............. . . . .

November. ...... ........... . ........ . .

December. ... ........ . . . ... .... ... .

Calendar year 1941 ...... . .... . . .

January. . . ...... ........ . . .... . .

February. ... . ......... .....

March. .... ... .... .... .

April. ...... . ....... . ...

May . . .... . . ...... .......

June ... ...... .... .....

July. ........... . . ........

August. ....... . ... ...

September. .......... . . ...

Water year ] 941-42 . . .......

Mar.

3,260

3,630

3.560

3,280

7,320

3 , 460

3 , 780

.",850

4,040

4,280

5,260

5,990

6,240

6,290

5,820

5,680

5,500

5,440

5,370

4 , 750

4,670

.'.,610

4.610

4,350

4.330

4,190

4,080

4,000

4,020

4,390

4,630

Apr.

4,410

4,310

6,180

io,7ro

13,100

11,300

9,740

8,990

8,820

9,?50

' ,870

8,960

11 ,300

11,600

10,500

10,400

10,700

9,720

9,180

8,870

8,1'/0

8,410

8,060

 : , s^o

,270

5,780

6,130

6,070

5,930

5,970

-

Secondfoot-days

46,950

50,470

175,350

1,623,600

195,360

£.47,620

14C,6' 0

25", 870

V29,£CO

143,090

65.040

5-1.28C

C9,]PO

l,G:i. 690

May

6,030

5,650

5,460

5,110

4,940

5,100

5,380

5,490

5,860

5,780

5,520

5,090

4,850

?,1VO

8,120

6,490

8,470

fl, 570

8,060

r,140

6,640

8,670

9,420

9,280

11,900

11,600

11,400

9,890

8,520

8,020

7,690

Maximum

1,720

2,540

19,600

2'i,4QO

24,300

31,500

13, ', 100

11,900 17 ,"50

3,420

1,920

 J.120

3] ,500

June

7,350

6,640

6,190

6,520

6,620

6,310

5,690

5,730

5,550

5,420

5,240

r ,090

5,100

5,030

5,010

4,650

4, 450

4,470

4,4fiO

4,310

4,140

4,100

3,880

3,630

3,170

3,090

2,950

2,860

3,020

3,030

-

Minimum

1 ,280

1,410

2,000

1,270

2,110

3,iPO

B,260

4,410

4,850

a, 860

1 , 570

1 , 400

1,750

1..28C

July

3,230

3,420

2,850

2,500

2,440

2,280

2,390

2,370

2,380

2,240

1,570

1,940

2,010

1.P60

2,020

2,010

2,010

1,890

l,7ro

1,890

1,850

1,850

1,870

1,850

1,840

 ",580

1,790

1,830

1,820

1,820

1,780

Aug.

1,830

,680

,800

,820

,830

,800

,800

,790

,550

,750

,740

,750

,690

,730

,710

,500

,650

,690

,680

,700

,680

,660

,4 ,0

,830

,880

,850

,POO

,920

,9;jO

,800

,noo

Mean

1,515

1,682

5,656

4,448

6,302

f ,644

4,f 3P

'-.,462

7 394

4,790

2,098

1 , 7r 1

1,973

4, r f r>

Sept.

1,920

1,900

1,'~90

1,920

1,920

1,750

1,780

1,850

1,870

1,850

1,950

1,930

1,760

1,900

1,900

2,OSO

2,100

2,080

2,120

1,960

2,100

2,120

2,^70

2,030

2,070

2,120

1,960

2,050

2,]00

2,080

-

Runoff in 

acre-feet

P3,T20

100,100

347,800

3,220,000

387,500

491,100

279,000

503,500

454,600

: ,r ,000

129,000

107,700

117,400

", .96,000

Time basis: "id ic rtun^r.rd time nrior to 2 a.m., eb. 9, 1942; iclfic « »* 1 1: t ef'tift.er.

To convert w r tiire to standard time, s ibtract 1 hour.
FEATHER RIVER BASIN 287

Feather River near Orovllle, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 121 °29', In NEi sec. 2, T. 19 II., R. 

4 E., 75 feet upstream from bridge on Feather River Highway, 2 miles downstream from 

confluence of North and Middle Forks, and 3 miles northeast of Orovllle. Datura of gage 

Is 1C2.02 feet above mean sea level, datum of 1929.

Drainage area.- 3,611 square miles.

Records available.- October 1934 to September 1942. January 1902 to September 1934 at 

site at Orovllle, 5 miles downstream.

Average discharge.- 40 years, 5,931 second-feet.

Extremes.- Maximum discharge during year, 110,000 second-feet Feb. 5 (gage height, 58.55 

feeTJJ minimum, 1,020 second-feet Nov. 27 (gage height, 5.24 feet).

1902-34 at Orovllle: Maximum discharge observed, 230,000 second-feet Mar. 19, 1907 

(gage height, 28.2 feet, reading on U. S. Weather Bureau staff gage at bridge, equivalent to 39.3 feet at staff gage at cable 1,000 feet upstream; probably had been higher 

during the night): minimum, 300 second-feet (estimated, regulated) Nov. 9, 1931 (gage 

height, -1.7 feet).

1934-42 near Orovllle: Maximum discharge, 185,000 second-feet Dec. 11, 1937 (gage 

height, 73.6 feet, from floodmarks), from rating curve extended above 62,000 secondfeet on basis of velocity-area and AVd~ studies and verified by slope-area computation; 

minimum, 462 second-feet Dec. 10, 1934 (gage height, 3.55 feet).

Remarks.- Records excellent except those above 40,000 second-feet, which are good. Flow 

regulated by power plants and Lake Almanor (p. 274 )> Bucks (p. 293), Butt Valley, and 

other srialler reservoir.

7.1 

7.5 

8.0

Rating table, water year 1941-42 (gage height. In feet, and discharge, 

In second-feet)

1,020

1,720

1,880

2,100

2,375

S.5 

9.0

2,650

2,940

3,540

4,140

4,740

5,370

6,070

7,620

9,300

11,150

35

40

14,300 

17,700 

2?,900 

30,600 

40,700

54,700

72,000

88,500

.soharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

1,880 

1,900 

1,740 

1,720 

1,680

1,760 

1,820 

1,820 

1,810 

1,890

1,790 

1,660 

2,010 

1,960 

1,910

1,950 

1,940 

1,890 

1,760 

1,900

1,940 

1,620 

1,870 

1,920 

1,800

1,890 

2,320 

2,270 

2,110 

1,990 

1,960

Nov.

2,180 

3,890 

3,060 

3,010 

2,470

2,330 

2,340 

2,260 

2,050 

2,520

2,120 

2,300 

2,070 

1.8PO 

1,950

2,420 

2,280 

2,210 

2,150 

2,060

2,010 

2,170 

2,000 

1,960 

2,030

2,040 

2,020 

2,200 

2,280 

4,270

Dec.

3,110 

10,600 

26,700 

9,540 

5,980

4,570 

3,710 

3,680 

3,460 

3,350

3,140 

3,110 

3,110 

12,500 

33,500

61,600 

28,000 

23,700 

20,700 

17,400

14,000 

12,300 11,300" 

9,230 

7,780

6,900 

7,060 

9,160 

9,300 

8,360 

7,440

Jan.

6,220 

5,350 

5,400 

5,070 

4,740

4,830 

9,500 

13,200 

10,200 

9,410

8,600 

7,460 

7,300 

6,930 

6,420

6,340 

5,830 

5,250 

5,200 

4,990

4,740 

5,400 

9,300 

18,700 

37,200

37,700 

61,100 

45,700 

32,000 

24,400 

20,000

Feb.

18,200 

23,300 

24,100 

31,800 

37,600

88,400 

53,700 

35,200 

26,900 

22,400

18,400 

16,200 

14,200 

12,700 

11,400

10,900 

10,300 

9,850 

9,120 

8,760

8,700 

8,330 

,560 

,600 

,480

,240 

,120 

6,660

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apr! 

May. 

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1941 

ary

h. .....................................

1. .............................. ......

ter year 1941-42 ................. ....

Mar.

6,200 

6,220 

6,360 

6,040 

6,080

6,340 

6,610 

6,650 

6,990 

7,360

9,560 

11,400 

11,300 

11,400 

10,600

10,000 

9,720 

9,590 

9,300 

8,490

8,150 

8,070 

8,080 

7,800 

7,590

7,220 

6,960 

6,790 

6,800 

6,950 

7,110

Apr.

7,700 

8,070 

11,700 

24 , 500 

25,700

21,400 

18,300 

16,900 

16,400 

17,400

17,000 

17,100 

19,600 

25,000 

21,100

20,500 

20,400 

18,200 

17,000 

16,700

15,500 

16,100 

15,900 

14,100 

13,400

12,400 

13,?00 

13,100 

12,200 

12,300

Secondfoot-days

58,680 

70,470 

374,290

3,135,290

434,480 

544,120 

247,730 

498,970 

429,400 

262,500 

98,250 

68,480 

68,610

3,155,980

May

13,000 

11,800 

11,200 

10,800 

10,300

10,500 

11,100 

11 , 600 

12,200 

12,000

11,800 

10,800 

10,100 

10,800 

13,600

14,100 

13,800 

13,900 

13,700 

14,400

14,500 

16,100 

16,400 

15,900 

21,700

22,500 

19,700 

17,600 

15,300 

14,400 

13,800

Maximum

2,320 

4,270 

51,600

70,400

61,100 

88,400 

11,400 

25,700 

22,500 

13,200 

5,110 

2,390 

2,410

88,400

June

13,200 

12,800 

11,800 

12,200 

12,600

12,400 

11,300 

10,800 

10,700 

10,500

10,000 

9,570 

9,300 

9,190 

9,260

8,670 

8,120 

7,900 

7,820 

7,320

6,880 

6,800 

6,420 

6,210 

5,660

5,340 

5,050 

5,010 

4,810 

4,870

Minimum

1,660 

1,820 

3,110

1,660

4,740 

6,660 

6,040 

7,700 

10,100 

4,810 

2,280 

1,990 

2,100

1,660

July

4,860 

5,110 

4,680 

4,140 

4,230

3,810 

3,850 

3,720 

5,670 

3,540

2,830 

3,090 

3,070 

3,030 

3,000

2,950 

2,940 

2,830 

2,620 

2,810

2,760 

2,650 

2,540 

2,610 

2,540

2,280 

2,430 

2,400 

2,440 

2,420 

2,400

Aug.

2,350 

2,200 

2,390 

2,310 

2,380

2,320 

2,320 

2,260 

2,130 

2,200

2,210 

2,240 

2,160 

2,240 

2,160

2,070 

2,040 

2,130 

2,090 

2,130

2,130 

2,030 

1,990 

2,140 

2,330

2,220 

2,260 

2,310 

2,320 

2,210 

2,210

Mean

1,893 

2,349 

12,070

8,590

14,020 

19,430 

7,991 

16,630 

13,850 

8,750 

3,169 

2,209 

2,287

8,647

Sept.

2,320 

2,290 

2,320 

2,280 

2,300

2,160 

2,130 

2,210 

2,180 

2,260

2,140 

2,290 

2,100 

2,160 

2,220

2,300 

2,390 

2,360 

2,380 

2,260

2,360 

2,410 

2,380 

2,360 

2,380

2,390 

2,250 

2,320 

2,350 

2,360

Runoff in 

acre-feet

116,400 

139,800 

742,400

6,219,000

861,800 

1,079,000 

491,400 

989,700 

851,700 

520,700 

194,900 

135,800 

136,100

6,260,000

Peak discharge.- Dec. 3 (1:30 a.m.) 43,500 sec.-ft.; Dec. 15 (6 p.m.) 47,300 sec.-ft.; Dec. 16 

(2' p.m.) 64,bUO sec.-ft.; Jan. 25 (7 p.m.) 40,800 sec.-ft.; Jan. 27 (11 a.m.) 76,200 sec.-ft.; 

Feb. 6 (7 a.m.) 110,000 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
288 FEATHER RIVER BASIN 

Feather River at NIcolaus, Calif.

Location.- Water-stage recorder, lat. 38°54'00", long. 121°35'05n , at NIcolaus, Sutter 

County, 0.4 nlle downstream from highway bridge. Zero of gage Is set to datum of 

Corps of Engineers, U.S. Army.

Records available.- June 1921 to September 1942 (low-water periods only) In reports of 

Geological Survey. 1920-21 and 1926-38 (gage heights for high-water periods only) and 

1939-42 (discharge) In reports of Division of Water Resources, Department of Public 

Works, State of California.

Extremes.- Minimum discharge recorded during year, 472 second-feet Aug. 21 (gage height, 

'1921-42:" No flow Aug. 2-18, 1924; July 11-22, 24, 26, Aug. 1, 1931.

Remarks.- Records good. Flow regulated by many diversions, power plants, and storage 

above station.

Cooperation.- Records collected and prepared in cooperation with Division of Water 

Resources, Department of Public Works, State of California.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1,560

1 , S60

1,560

1,520

1,470

1,470

1,430

1,520

1,560

1,520

1,470

1,470

1,470

1,430

1,560

1,560

1,520

1,560

1,560

1,560

1,520

1,600

1,560

1,520

1,600

1,600

1,700

2,080

2,340

2,180

2,080

Nov.

2,180

2,400

3,570

3,570

3,450

2,780

2,720

2,620

2,500

2,400

2,340

2,340

2,280

2,280

2,230

2,230

2,560

2,620

2,560

2,450

2,230

2,180

2,230

2,230

2,080

2,180

2,180

2,130

2,280

2,400

-

Dec. Jan. Feb. Mar.

11,800

11,100

10,900

10,900

10,600

10,400

10,600

10,800

10,600

10,900

12,200

14,900

16,900

17.3OO

20,700

20,000

17,300

15,600

14,900

14.2OO

13,300

12,600

12,200

12,000

11,700

11,300

10,800

10,300

io,]uo

9,890

9,730

Apr.

9,890

10,600

10,900

18,100

28,300

36,900

33,500

29,200

27,000

24,900

25,600

25,600

25,300

28,6OO

32,700

31,300

30,200

29,500

28,000

26,700

26,100

25,300

25,000

24,800

23,500

22,600

21,300

21,900

21,500

20,200

-

May

20,600

21,100

19,600

18,500

17,500

16,200

15,800

16,600

17,700

18,500

18,300

18,600

17,300

35,600

15,800

18,800

19,400

18,800

18,800

18,800

19,800

21,100

22,300

23,000

22,800

28,000

30,800

28,700

26,800

24,300

22,300

June

20,600

19,600

19,000

18,000

18,600

19,400

19,400

17,800

16,700

16,900

16,500

15,600

14,500

13,800

13,800

14,000

13,OOO

12,000

11,100

10,800

9,940

9,440

9,120

8,800

8,320

7,550

6,970

6,690

6,290

5,900

-

July

5,770

5,770

5,900

5,380

4,860

4,470

4,210

3,820

3,430

3,190

2,950

2,530

2,350

2,180

2,180

2,100

2,100

2,020

1,980

] ,860

1,700

1,700

1,590

1,510

1,430

1,350

1,280

1,080

1,120

1,080

1,040

Aug.

989

981

951

867

905

867

837

791

822

776

715

715

715

708

677

692

654

6O9

556

578

556

540

571

525

495

533

685

685

715

768

776

Sept.

692

708

730

730

753

776

776

700

692

768

829

867

951

913

829

882

943

1,080

1,?4O

al,280

al,320

&] ,350

1,390

1,470

1,590

1,740

1,860

1,940

1,980

2,100

-

Month

May . . . . .......... ... . 

June. . . . . ...... ..... 

July. . . . . ... .... .... 

August . . ... . . . ...... 

September. . ....... ...

Water year . . . . ...... . ...

Secondfoot-days

632,200 

400,120 

83,930 

22,254 

33,879

-

Maximum

- - -

3O,800 

20,600 

5,900 

989

2,100

-

Minimum

15,600 

5,900 

1,040 

495 

692

-

Mean

2 ' 473

-

20,390 

13,340 

2,707 

718 

1,129

-

Runoff in 

acre-feet

99 390

1,254,000 

793,600 

166,500 

44,140 

67,200

-

To convert wa

discharge interpolated.

nderd time prior to 2 a.m., Pet. 9, 1942; Pacific 

ruibrd time, subtract 1 hour.
FEAT::ER RIVER BASIN 2?9

Butt Creek above Almanor-Butt Creek tunnel, near Prattville, Calif.

Location.- Water-stage recorder, lat. 40°12', long. 121°12', in NWi sec. 16, T. 27 11.,

 R. 7 E., about li miles upstream from outlet of tunnel from Lake ALmanor to Butt

Creek and 2-j niles southwest of Prattville. Altitude of gage, about 4,300 feet (fron 

topographic nap).

Drainage area.- 64.3 square miles.

Records available.- October 1936 to September 1937, October 1936 to September 1942.

Extreir.es.- Maximum discharge during year, 567 second-feet Jan. 27 (cage height, 4.62 feet); 

minimum, Zt second-feet Nov. 21.

1936-37, 1938-42: Maximum discharge, 1,500 second-feet Feb. 28, 1940 (gage height, 

5.75 feet); minimum, 3.2 second-feet Dec. 11, 1936.

Remarks.- Records good except those for periods of ice effect, which are fair. VJallack

 ditch, above station, occasionally diverts several second-feet into Yellow Creek I'asin.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished by 

Pacific Gas ( Electric Co. in connection with a Federal Power Commission project.

2.4

2.5

2.6

2.7

2.8

Rating tables, water year 1941-42 except perloda of ice effect, (gage 

height, In feet, and discharge, In second-feet)

Oct. 1 to May 24

2.9

3.0 

3.2 

3.4 

3.6

104

140

182

226

3.8 274

4.0 328

4.2 396

4.4 480

2.4

2.5

2.6

2.7

2.8

May 25 to Sept. 30

2.9

3.0 

3.2 

3.4 

3.6

82

97

130

168

210

3.8 256

4.0 310

4.2 372

4.4 442

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

31

31

32

32

32

32

32

32

32

32

32

33

34

32

32

33

33

33

34

34

34

33

33

33

34

35

53

43

38

37

36

Nov.

54

72

54

52

44

43

42

40

39

39

39

39

38

38

39

50

45

39

36

37

35

35

36

35

35

35

35

36

58

64

-

Dec.

47

222

309

96

69

59

56

53

52

53

51

50

61

93

308

460

202

b200

b!90

b!60

bl!5

blOO

b90

b85

b85

86

75

75

85

80

74

Jan.

59

62

72

68

69

69

131

186

129

106

98

93

88

82

78

78

72

69

68

69

65

75

74

96

171

200

423

279

eoa

175

154

Feb.

156

b!35

b!60

b!50

b!55

357

264

b200

b!60

b!55

b!40

b!35

b!20

bl!5

blio

bllO

b!05

b95

b95

b95

b90

b90

90

91

82

82

78

75

-

«

-

Month

October. ... ... ................ . . ....

November. .................................

December. ..... . . ....................

Calendar year 1941 ................ .

January ........ . ......... ...........

February ...... ...... ........ . . . .....

March. ........... .... ...... . . ... . . .

April. . .......... ....

May..... ...... . .... . .. .... . . . .

June ...... .... . . ... . . . ...... ...... .

July. ..... ...... . . ............. .

August ............ ... . ... ... .

September. . ..... . . . .....

Water year 1941-42

Mar.

75

75

74

74

80

86

83

91

101

111

122

126

117

106

108

101

101

102

98

96

99

104

106

106

99

94

98

101

111

124

138

Apr.

136

146

195

236

211

202

21 1

222

238

264

272

308

378

382

314

297

255

233

245

260

272

303

282

267

269

250

267

240

213

213

~

Secondfoot-days

1,057

1,283

3,741

42,139

3,666

3,740

3,107

7,581

7,584

4,522

1,559

1,150

920

39,913

May

208

189

191

202

195

206

222

236

245

236

236

215

197

193

202

191

193

202

224

262

300

328

314

306

406

389

307

279

254

237

219

Maximum

53

72

460

714

423

357

138

382

406

223

69

41

35

460

June

210

210

203

212

223

221

210

201

199

190

182

170

164

162

162

152

144

139

132

123

116

110

100

92

91

90

85

81

76

72

-

Minimum

31

35

47

31

59

75

74

136

189

72

40

34

27

27

July

69

68

64

62

62

60

59

58

55

54

53

51

50

48

48

48

48

47

44

43

42

40

42

43

43

43

43

43

43

43

43

Aug.

41

41

40

40

40

40

40

40

38

35

36

37

36

36

36

37

37

37

37

37

34

35

35

35

35

35

36

36

37

36

Mean

34.1

42. >T

121

115

118

134

100

253

245

151

50.3

37.1

30. v

109

35

Sept.

35

35

35

35

34

30

30

31

32

31

29

28

28

28

27

27

28

28

29

30

30

31

31

31

31

31

31

31

31

32

-

Runoff in 

acre-feet

2,100

2,540

7,420

83,530

7,270

7,420

6,160

15,040

15,040

8,970

3,090

2,230

1,820

79,150

Peak discharge.- Dec. 3 (2 a.m.) 546 sec.-ft.; Dec. 16 (11:30 a.m.) 581 sec.-ft.; Jan. 27 (1:30 

p.m.) 587 sec.-ft.; Apr. 13 (8 p.-n. ) 490 sec.-ft.; Mpy 25 (12 p.m.) 490 sec.-ft.

b Stage-discharge relation affected by ice.

Time basis; Pacific standard tine prior to 2 a.m., Feb. 9, 194.7; Pacific wr.r tine thereafter. 

To convert war time to standard time, subtract 1 hour.
290 FEATHER RIVER BASIN

Butt Creek below Almanor-Butt Creek tunnel, near Prattville, Calif.

Location.- Water-stage recorder and concrete control, lat. 40°10', long. 121°ll' f In

 NVIi sec. 22, T. 27 N., R. 7 E., about 400 feet downstream from outlet of tunnel from 

Lake Almanor to Butt Creek, and 3 miles southwest of Prattville. Altitude of gage, 

about 4,200 feet (from topographic map).

Drainage area.- 67.3 square miles.

Records available.- October 1938 to September 1942.

Extremes.- Maximum discharge during year, 1,540 second-feet Dec. 16 (gage height, 3.65 

feet); minimum, 62 second-feet Aug. 24.

1938-42: Maximum discharge, 2,170 second-feet Mar. 30, 1940 (gage height, 4.37 

feet); minimum, 36 second-feet June 13 and Dec. 3, 1940.

Remarks.- Records good except those for period affected by backwater, which are fair.

The difference in-flow at this station and at the station above the tunnel (see preceding page) shows the amount of water diverted from Lake Almanor to Butt Creek and Butt 

Valley Reservoir, plus natural local Inflow from 3 square miles of Intervening drainage area.

Cooperation.- Water-stage recorder graph and several discharge measurements furnished by

 Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Rating tables, water year 1941-42, except period of backwater (gage 

height, in feet, and discharge, in second-feet)

Oct. 1 to Mar. 5 Mar. 6 to Sept. 30

1.0 

1.2 

1.4

118

168

226

1.6 

1.8 

2.0 

2.3 

2.6

294

374

466

616

790

2.9 

3.3

3.7

980

1,260

1,580

1.2 

1.4 

1.6 

1.8 

2.0

168

227

296

375

464

2.3 

2.6 

2.9 

3.9 

3.4

608

770

950

1,150

1,300

Note.- Same as preceding 

table below 1.2 feet 

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

987

987

987

987

987

987

987

987

987

980

980

974

974

980

980

980

980

980

974

974

967

967

967

967

974

974

987

987

987

987

987

Nov.

1,010

1,020

1,000

1,000

987

987

987

987

987

994

994

994

994

994

994

1,000

1,000

994

994

994

994

1,000

994

1,000

1,000

1,000

994

994

1,020

1,030

-

Dec.

1,010

1,080

336

118

624

1,020

1,020

1,020

1,020

1,020

1,010

1,000

1,010

1,040

1,250

1,420

860

223

211

182

137

120

111

530

1,040

1,040

J., 030

1 , 030

1,040

1,040

1,040

Jan.

1,020

1,020

1,010

1,010

994

987

1,080

1,130

1,080

1,060

660

116

cllO

C100

C95

c95

C90

c90

C85

C85

C80

C90

C90

cllO

c!90

C220

461

313

229

190

174

Feb.

174

202

179

165

171

392

283

220

188

171

158

150

137

130

128

125

118

111

109

109

107

105

105

103

98

100

98

431

-

-

-

Month

October ................ ...................

Novembe r ....................... ...........

December .................................

Calendar year 1941 .......... ........

January ..... ................ ..........

February. ..... .......... ...... ... ....

March. ...... ...... ......... . ...... .

April ........ .... .... .... . ........

May. ........ ...... .... ..... . . . . ...

June. .......... .... ... . . ..... . .

July. ................... . ... . ......

August. ..... . ........ .... ..........

September. . . . . ..... . . . . . . ...... . .

Water year 1941-42 . . ...... ...... ....

Mar.

94

92

90

94

98

602

1,030

1,040

1,050

1,060

1,070

1,070

1,070

1,050

1,060

1,050

1,050

1,060

1,070

1,070

1,070

1,080

1,100

1,110

1,090

1,090

1,090

1,090

1,090

1,100

1,120

Apr.

1,110

1,110

1,100

864

244

227

234

244

260

289

307

346

423

432

354

334

289

267

278

285

296

338

326

289

289

264

278

257

227

221

"

Secondfoot-days

30,390

29,937

24,632

300,185

14,064

4,567

27,900

11,782

19,293

30,658

26,242

27,687

28,608

275,760

May

221

205

208

218

377

1,130

1,150

1,160

1,160

1,150

1,140

1,120

1,100

729

227

215

218

224

250

278

319

342

330

323

427

427

338

807

1,180

1,170

1,150

Maximum

987

1,030

1,420

1,570

1,130

431

1,120

1,110

1,180

1,150

1,020

996

996

1,420

June

1,150

1,140

1,140

1,140

1,140

1,140

1,120

1,120

1,120

1,100

1,100

1,090

1,090

1,090

1,100

1,090

1,080

1,070

1,070

1,060

1,060

1,060

704

109

395

1,050

1,040

1,030

1,030

1,030

-

Minimum

967

987

111

56

80

98

90

221

205

109

74

64

925

64

July

1,020

1,020

1,020

1,010

817

622

996

1,000

755

81

548

1,000

1,010

1,010

1,020

1,020

1,020

728

81

74

408

996

1,000

1,010

1,000

996

996

996

996

996

996

Aug.

996

996

982

982

989

982

982

982

982

982

989

989

996

996

989

989

982

976

970

963

950

789

66

64

478

950

944

938

938

938

938

Mean

980

998

795

822

454

163

900

393

622

1,022

847

893

954

756

Sept.

938

931

931

931

925

925

931

931

938

938

938

938

938

950

950

950

950

950

956

963

970

970

970

976

982

982 982-

989

989

996

-

Runoff in 

acre-feet

60,280

59,380

48,860

595,400

27,900

9,060

55,340

23,370

38,270

60,810

52,050

54,920

56,740

547,000

c Backwater from debris on control.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert war time to standard time, subtract 1 hour.
FEATHER RIVER BASIN 291

Indian Creek near Crescent Mills, Calif.

Location.- Water-stage recorder, lat. 40°05', long. 120°56', in SWi sec. 25, T. 26 N., 

R. 9 E., 0.8 mile upstream from Dixie Creek and about li miles dovmstrean from town 

of Crescent Mills. Altitude of gage, about 3,500 feet (from topographic map).

Drainage area.- 746 square miles.

Records available.- October 1930 to September 1942. January 1906 to December 1909 and 

September 1911 to March 1918 at site 800 feet upstream.

Average discharge.- 21 years (1906-9, 1911-17, 1930-42), 542 second-feet.

Extremes.- Maximum discharge during year, 6,790 second-feet Jan. 28 (gage height, 11.68 

feet); minimum, 16 second-feet Aug. 25

1906-9, 1911-18, 1930-42: Maximum discharge, 14,000 second-feet Feb. 28, 1940 

(gage height, 16.07 feet), from rating curve extended above 4,000 Second-feet by 

logarithmic plotting; minimum, 1.7 second-feet Aug. 25, 1931.

Remarks.- Records excellent. Diversions above station for Irrigation in Indian and 

Genesee Valleys.

Rating table, water year 1941-42 (gage height, in feet, and discharge, in second-feet)

1.6 16 2.2 54 3.6 274 5.6 1,110 8.0 2, 

1.7 20 2.4 73 4.0 384 6.0 1,350 9.0 3, 

1.8 26 2.7 107 4.4 516 6.5 1,680 10.0 4, 

1.9 32 3.0 150 4.8 690 7.0 2,040 11.0 5, 

2.0 39 3.3 206 5.2 890 7.5 2,440 12.0 7,

Discharge, in second feet, water year October 1941 to September 1942

Day

1 

2 

3 

4

5

6 

7 

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.

34

30 

30 

30 

31

32 

34 

36 

36 

37

38

40 

42 

48 

55

61 

61 

52 

47 

45

46 

50 

61 

64 

64

63 

84 

95 

87 

82 

77

Nov.

81 

117 

131 

120 

107

99 

92

87 

85 

83

83 

82 

81 

81 

83

88 

102 

103 

97 

92

90 

87 

93 

93 

88

83 

83 

86 

99

145

Dec.

147 

265 

1,030 

1,280 

885

578 

424 

323 

267 

243

221 

200 

194 

384

715

1,780 

3,300 

2,040 

1,430 

1,280

1,160 

973 

880 

770 

650

578 

487 

440 

427 

449 

443

Jan.

390 

318 

308 

323 

308

321 

372 

591 

730 

805

770 

700 

636 

578 

520

520 

498 

453

414 

390

360 

440 

636 

930 

1,890

2,830 

4,870 

6,430 

3,960 

2,480 

1,930

Feb.

1,610 

1,600 

1,840 

1,950 

2,140

5,340 

5,880 

3,570 

2,460 

1,940

1,620 

1,410 

1,230 

1,100 

990

910 

830

765 

705 

668

658 

654 

614 

574 

540

505 

480 

463

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May

June 

July 

Augu 

Sept

Wa

ber. ................................. .

lendar year 194 

ary

h. ................................ ....

1. .............. ................. ....

ter year 1941-42 ................. ....

Mar.

449 

446 

453

456 

473

548 

636 

686 

770 

940

1,210 

1,420 

1,570 

1,430 

1,260

1,170 

1,070 

1,030 

1,030 

973

925 

930 

990 

1,070 

1,080

978 

900 

880 

910 

1,010 

1,150

Apr.

1,420 

1,670 

1,900 

3,700 

4,700

3,750 

3,140 

2,880 

2,830 

2,860

3,100 

3,080 

3,200 

3,720 

3,630

3,140 

2,870 

2,460 

2,180 

2,080

2,060 

2,100 

2,070 

1,900 

1,780

1,670 

1,590 

1,600 

1,570 

1,520

Secondfoot-days

1,592 

2,841 

24,243

215,831

36,701 

43,046 

20,843 

76,170 

44,340 

23,1^7 

3,097 

769 

729

286, C98

Peak discharge.- Dec. 17 (7 a.m.) 3.700 sec, -ft.: Jan.

May

1,500 

1,390 

1,260 

1,210 

1,160

1,120 

1,120 

1,180 

1,250 

1,340

1,390 

1,390 

1,310 

1,230 

1,210

1,240 

1,220 

1,180 

1,170 

1,210

1,320 

1,420 

1,460 

1,420 

1,520

2,100 

2,460 

2,220 

1,970 

1,760 

l,filO

Maximum

95 

145 

3,300

6,090

6,430 

5,880 

1,570 

4,700 

2,460 

1,490 

262 

40 

33

6,430

June

1,490 

1,400 

1,340 

,300 

,260

,230 

,180 

,110 

1,050 

1,010

951 

890 

830 

755 

705

668 

622 

569 

536 

502

470 

449 

424 

393 

372

360 

346 

326 

305 

284

Minimum

30

81 

147

22

308 

463 

446 

1,420 

1,120 

284 

41 

17 

20

17

July

262

248 

241 

221 

208

190 

166 

159 

150 

144

136 

127 

124 

120 

116

110 

102 

97 

82 

81

77 

72 

68 

64 

58

52 

47 

46 

45 

43 

41

880 

830 

870 

970 

170

Aug.

40 

40 

38 

37 

36

34 

35 

35 

36 

24

22 

25 

22 

21 

21

21

20 

20 

20 

20

20 

20 

18 

17 

17

19 

19 

19 

18 

19 

18

Mean

51.4 

94.7 

782

591

1,164 

1,537 

930 

2,539 

1,430 

771 

119 

24.8 

24.3

784

28 (5 to 7 a.m.) 6,790 sec. -ft. ,

Sept.

20 

20 

20 

20 

20

21 

21 

21 

21 

22

21 

22 

24 

25 

25

26 

27 

25 

24 

26

27 

28 

28 

28 

28

26 

26 

26 

28

33

Runoff in 

acre-feet

3,160 

5,640 

48,090

428,100

72,800 

05,380 

57,210 

151,100 

87,950 

45,870 

7,330 

1,530 

1,450

?67,500

Feb. 6

(10 p.m.) 6,770 sec.-ft.; Apr. 5 (2 a.m.) 4,970 sec.-ft.; May 27 (6 to 7 a.m.) 2,510 sec.-ft.

Time basis; Pacific standard time crlor to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
292 FEATHER RIVER BASIN

Spanish Creek at Keddie, Calif.

Location.- Water-stage recorder, lat. 400 00'05", long. 120°57'20", in NEi sec. 27, T. 25 

 N., K'.' 9 E., 200 feet upstream from Blackhawk Creek and 0.9 mile southeast of Keddie. 

Altitude of gage, about 3,250 feet (from topographic map).

Drainage area.- 184 sqw-re miles.

available.- October 1933 to September 1942. October 1911 to September 1933 at

site 1.2 Tiles ^ownstream. 

Average discharge.- 20 years (1911-19, 1921-33), 230 secona-feet, at former site.

Extremes.- Maximum discharge during year, 9,150 second-feet Feb. 6 (gage height, 10.50 

 feet), from rating curve extended above 4,400 second-feet; minimum, 35 second-feet

" P1911-42: Maximum discharge, 11,500 second-feet Dec. 11, 1937 (gage height, 12.43 

feet), from rating curve extended above 5,000 second-feet on basis of Avd studies; 

minimum, 3.8 second-feet '.ug. 12, 1954.

Remarks.- Records good, v.ater diverted above station for irrigation in American Valley.

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

1.5

1.7

1.9

2.1

2.3

2.5

2.8

36

46

57

75

105

151

242

3.1

3.4

3.8

4.2

4.6

5.0

5.5

354

490

710

1,010

1,340

1,700

2,200

6.0

6.5

7.0

7.5

8.0

8.5

9.0

2,710

3,260

3,860

4,500

5,180

5,900

6,670

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

42

40

39

39

40

41

42

44

44

44

44

44

47

46

45

44

44

44

44

44

45

45

45

47

49

49

75

72

68

58

56

Nov.

6C

96

83

78

67

63

60

59

58

59

58

56

56

56

56

63

68

63

59

57

56

56

56

55

56

56

56

57

71

122

-

Dec.

87

463

1,670

398

223

166

136

122

113

122

103

96

105

637

1,590

2.580

1,240

752

656

650

505

389

372

310

269

245

280

213

210

213

207

Jan.

186

216

220

201

195

160

322

639

481

394

342

306

276

256

242

252

236

216

201

189

183

358

745

1,360

2,790

2,280

3,540

2,220

1,260

914

724

Feb.

698

1,250

1,390

1,590

1,770

6,100

2,900

1,590

1,130

890

738

634

556

495

458

426

389

367

342

334

346

342

306

295

273

262

252

239

-

-

-

Mar.

236

236

236

242

259

303

287

291

326

363

485

584

556

485

439

421

421

426

398

367

354

3b8

354

357

338

310

299

291

303

314

372

Apr.

421

435

824

2,050

1,960

1,380

1,110

962

922

922

898

938

1,110

1,500

1,170

1,110

994

836

801

801

801

890

808

710

686

634

662

668

590

595

-

May

644

568

551

551

530

540

600

639

668

698

686

595

540

530

617

595

573

578

612

692

766

794

724

- 692

1,090

1,230

1,000

850

745

644

590

June

562

562

535

530

546

535

500

481

476

458

435

403

385

367

367

342

322

306

287

269

256

242

226

213

210

204

192

183

174

160

-

July

151

146

135

126

122

113

111

107

102

102

100

93

85

85

84

84

S3

79

78

72

69

68

68

66

65

64

63

61

59

56

56

Aug.

53

53

53

52

52

50

49

48

47

46

46

44

44

44

42

42

41

41

42

43

42

42

42

42

42

44

42

44

47

46

42

Sept.

42

41

40

40

38

41

41

38

40

42

38

37

36

38

39

40

41

39

38

40

40

40

40

40

40

40

40

40

40

41

-

Month

UAV

Water year 1941-42 ......................

Secondfoot-days

21,904

26,362

10,728

2,754

1,407

143,128

Maximum

6,ltX>

53

6,100

Minimum

o*e

36

Mean

*^O *7

392

Runoff in 

acre-feet

283,900

Peak discharge.- Dec. 3 (5 a.m.) 2,420 sec.-ft.; Dec. 16 (5 p.m.) 3,360 sec.-ft.; Jan. 25 (2:30 

a.m.) 3,260 sec.-ft.; Jan. 27 (1 p.m.) 5,010 sec.-ft.; Feb. 6 (8:30 a.m.) 9,150 sec.-ft.; Apr. 4 

(6 a.m.) 2,300 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
FEATKER RIVER BASIII 293

Bucks Creek Reservoir near Bucks Ranch, Calif.

Location.- Water-stace recorder, lat. 39°54', lone- 121°1«', in IJWi sec. 33, T. 24 I!., 

R. 7 E., at dan on Bucks Creek, 2 miles northwest of former Bucks R-:nch and 15 r.llcs 

west of Quincy. Datum of face is 5,000 feet above menn sea level; Gace readings have 

been reduced to elevations above mean sea level.

Drainage area.- ZS square miles.

Records available.- October 1925 to September 1042.

Extremes.- Maximun contents during year, 103,£00 acre-feet June 14 (elevation, 5,156.0 

 feet); minimum, 81,100 acre-feet Apr. 2, 3 (elevation, 5,143.1 feet).

1928-42: Ilrocinum contents, 105,000 acre-feet June 23, 1930 (elevation, 5,157.1 

feet); minima?,, ±2,330 acre-feet Feb. 27, 1929 (elevation, 5,090.7 feet).

Remarks.- Reservoir is formed by concrete-faced rock-fill dam completed in_1927; storage

'..at

dlscharres~irito~ Grizzly Creek, r-.ence to Bucks Creek power plant. Records show total 

contents at nldnicht of which 274 acre-feet are not available for release.

Cooperation.- Record of contents furnished by Pacific Gas ( Electric Co. in connection 

with a Federal Power Conriission project.

Contents ,ln acre feet, water year October 1941 to September 1942

Dayj Oct. i Nov.

1 90,700

2 J 90,500

3

4

5

6

7

8

9

10

90,200

90,000

89,800

89,600

89,300

39,000

88,70C

88,400

11! 88,200

12 | 66,000

13

14

15

67,800

67,500

87,400

16 87,100

17 66,900

18 66,700

19

20

8c,60C

86,600

21 86,500

22 66 , 500

23 86,400

24 86.4CO

25 66.30C

26 j 86,200

27 86,100

28 85,900

29, 85,700

30 85,600

31' 85,300

65,600

85,900

86,200

96,200

86,200

86,100

86,000

85,900

65,700

85,500

85,200

85,000

3'-, 900

84,600

84,400

84,300

84,200

84.10C

64,100

84,100

84,100

64,100

64,000

84,000

83,900

83 , 800

83,700

63 , 500

«?,500

83,300

Dec.

84 , 000

84,400

86,000

87,100

88,000

88,400

88,800

89,100

69,300

89,100

89,200

89 , 400

89,700

90,500

9^,400

94,700

95,300

65.300

95,300

96,100

95,700

95,300

95,300

95,000

94,700

94,500

94 , 400

94,300

94,100

93 . 900

93)700

Jan.

93,200

9S,900

92,500

92,200

91,900

91,500

91,700

91,900

92,100

92,100

9^,000

91,900

91,800

91,700

91,600

91,500

91,500

91 , bOO

91 , 500

91,500

91 , 500

33 ,500

91 , 500

i.1,800

92,600

93,000

94,300

94,700

94,600

94,500

94,400

Feb.

94,400

94,600

94,600

94,800

95,000

96,000

Mar. Apr.

9C.80O 81.400

90 , 400

90 , 000

89,500

89,300

81,300

81,100

61,600

81,700

89,000 61.600

96,200 88,800 81 ',600

96,700 88,300

96,300

96,100

61.400

88,100 61,200

87,700 81,300

95,900 ' f7,600 81.200

95,600 i 87,500 81,300

95,300 87.300 61 '.600

95,100

9-! ,900

94.5OO

94,300

93,900

93,700

93,300

93,100

92 , 900

92,600

92,400

87,100 ! BR.OOO

56,800 ' 32,100

86,500 8:?, 200

86,200 82,200

85,800 6£,U>0

85,500 62,000

65,100 61,800

84,600 ' 81,800

84,500 83,900

64,200 82,000

63.900 8H.OOO

92,200 83,500

91,900 ' 83,300

91,500 82.900

91,100

_

_

-

82,600

S2 , 200

81 , 900

81,600

82,100

82,000

82,100

82,200

62,200

82,100

-

May

82,100

81,900

61,900

81,800

June

99,100

99,500

99,700

100.100

81,700 100,700

81,900 101.100

82,300

83,000

83,900

101,700

102,300

102.700

P4.600 103,100

85 , 200

85,600

86,100

86,600

87,100

.0.' ,400

103,600

103,600

103,800

103,500

87,600 103,500

86,200

88,800

69,400

103,500

103,400

103.400

90,300 103,400

91,400

92,400

93,400

94,500

103,400

1C3.400

103,400

103.400

96,100 103,400

97,400 103.200

97,800

98,200

98,500

98,600

98,800

103 , 200

103,000

103,100

103,000

-

July Aug.

103,000 102,000

102,900 102,000

102,800 101,900

102,800 101,700

102,700 101,300

102,800 100,700

102,700 100,500

102,700 100,200

102,600 9&.900

102,600 99,700

102,500 99,400

102,500 99,200

102,400 98,900

102,300 98,700

102,300 98,500

102,300 98,100

102,300 97,600

102,300 97,400

102,300 96,900

302,300 96,300

102,300 96,100

102,300 95,600

102,200 95,500

102,200 95,300

102,200 94,900

102,200 94,600

102,100 94,500,

102,100 94,300.

102,100 9-1,300!

102,300 94.30U

10::, 000 94,300)

Sept.

V4,3CO 

94,100 

93,800 

93 ,400 

93,300

93,000 

9K,800 

92,600 

98 , 200 

92,100

91,700 

91,700 

91 /'OO 

91,700 

91,. ' OO

91 , 400

91,300

90,900

00,700

90,300

69,800 

89,^00 

S9,?>00 

89,100

86,800 

68,600 

68,300 

88,100 

8", BOO

Monthly elevEtlon ar.d contents, water ye

Date

Dec. 31 ....................

Crler.der year 1941 ......

A <17 "M

3ent.?0 ....................

«|fcter ;,S-T 1U41-42 ......

Elevation 

(feet)t

5,148.8 

5,145.6 

5,144.7 

5,150.4

_

5,150.6 

5,149.0 

5,143.4 

5,143.7 

5,153.3 

5,lb5.6 

5,155.0 

5,150.8 

5,147.0

tSievr.clor. st mldi.Vht. 

Time basis: Pnclfio snmdnrd ti -e url

ar October 1941 to 3epteir.b>3

I Contents 

| (acre-feet!

90,600 

65,, -500 

83 , 800 

33,700

.

94,400 

91,100 

61 ,600 

82,100 

93,800 

103,000 

102,000 

94,300 

87,300

r 1942

Change In contents 

during month 

(acre-rest)

. -5,200 

-1,500 

19,900

TlO,VOO

t700 

-3,300 

-9,500 

t500 tie, voo

t4 , 200 

-1,000 

-7,700 

-6,500

-3,000

oi' to 2 a.m., Feb. P, 1942;

- - - -

Paclfli
294 FEATHER RIVER BASIN

Grizzly Creek near Storrie, Calif.

Location.- Water-stage recorder%nd concrete control, lat. 39°52', long. 121°14', in

SWJ sec. 5, T. 23 N., R. 7 E., about 2,000 feet upstream from outlet of tunnel from

Bucks Creek and 6 miles southeast of Storrie. Altitude of gage, about 4,900 feet

(from topographic map).

Records available.- December 1929 to September 1932, October 1933 to September 1942. 

Average discharge.- 11 years (1930-32, 1933-42), 23.7 second-feet. 

Extremes.- Maximum discharge during year, 1,300 second-feet Dec. 2 (gage height, 6.25

feet); minimum, 0.6 second-foot Sept. 1.

1329-32, 1933-42: Maximum discharge, 1,570 second-feet Dec. 10, 1937 (gage height,

7.20 feet), from rating curve extended above 250 second-feet; minimum, 0.1 second-foot

Sept. 7-14, 1932.

Revisions: The maximum discharge for the water year 1941 has been revised to 950

second-feet Feb. 10, 1941 (gage height, 5.80 feet), superseding figure published in

Water-Supply Paper 931.

Remarks.- Records good. No diversion or regulation above station. 

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by

Pacific Gas & Electric Co. in connection with a Federal Power Comiission project.

Bating table ater year 1941-42 height, in feet, and discharge

3.4 

3.6 

3.8 

4.0 

4.2 

4.4

69

94

126

170

224

5.0 

5.2 

5.4 

5.6

290

366

458

566

686

815

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.8

.7

.7

.8

.8

.8

.9

.8

.8

.8

.8

.9

1.0

.9

.8

.8

.8

.7

.7

.8

.8

.8

.7

.8

.8

.8

7

3.3

2.2

1.6

1.6

Nov.

7

25

20

10

5.5

4.0

3.4

3.0

2.6

2.5

2.2

2.0

2.0

2.3

3.6

17

7

5

4.2

3.6

3.4

3.4

3.3

3.3

3.1

3.1

3.3

3.4

45

53

-

Dec.

16

636

294

49

30

21

18

15

13

13

12

11

25

143

751

545

94

95

101

94

57

46

42

35

33

32

30

27

24

23

22

Jan.

20

18

18

18

17

17

68

86

49

36

30

27

25

22

21

20

18

16

16

15

14

20

20

132

237

237

475

110

70

56

55

Feb.

74

91

61

48

131

283

102

69

58

49

44

38

35

32

30

26

27

25

24

24

22

22

20

20

20

18

16

16

_

-

Month

October. . .......... ............. ........

November. ................................ .

December. ..................... ........ . .

Calendar year 1941 ...... . . ........ ...

January .... . . . . ........... ...... . .

February ...... ...... ...... . .... . ...

March. . .... ......... .......

April . . ............... . ...

May ... ........ ...... . ... .

June. .......... ...... . .......

July. ........... ...... . . . . ...

August. .......... ... . . ...... .

September. . . . .... ..... . . ...

Water year 1941-42 . . ....... ... .......

Mar.

18

18I'/

18

20

21

20

22

24

28

39

38

29

25

24

23

22

22

21

21

21

21

21

21

19

18

18

20

22

25

28

Apr.

30

33

158

133

80

63

59

61

74

104

97

100

151

117

79

66

54

51

56

60

73

90

75

69

68

63

62

50

46

44

-

Secondfoot-days

36.5

2h6.1

3,347

16,351.0

1 ,985

1,427

704

2,266

2' 040

201.6

44.0

28. 4

15,528.6

May

40

40

47

54

56

73

91

101

98

79

63

54

54

56

66

71

84

101

136

173

183

165

142

146

390

156

110

10<i

89

81

88

Maximum

7

53

761

751

475

283

39

1S8

130

17

2.5

1.4

751

June

106

102

110

130

126

108

98

102

104

93

86

80

80

80

74

63

58

55

49

43

39

38

36

33

30

26

24

24

21

20

-

Minimum

0.7

2.0

11

.7

14

16

17

30

40

20

2.6

.9

.7

.7

July

17

16

14

12

11

10

9

8.5

7.5

7.5

6.5

6

6

5.5

5.5

5

4.9

4.7

4.6

4.2

4.0

3.8

3.6

3.6

3.4

3.3

3.1

3.0

3.0

2.8

2.6

Aug.

2.5

2.3

2.2

2.0

2.0

1.9

1.8

1.8

1.6

1.6

.6

.5

.4

.4

.4

.,-i

.3

.2

1.2

1.2

1.0

.9

.9

.9

.9

.9

1.0

1.2

1.2

1.0

.9

Mean

1.18

8.54

108

44.8

64.0

51.0

22.7

7o.5

103

68.0

6.50

1.42

.95

42.5

Sept.

O.I

'.7

.7

.£

.8

.8

.9

.3

.4

.3

.2

.2

.2

-2

.2

.0

.9

.9

1.0

1.0

.9

.9

. a

.8

.8

.8

.8

.8

.8

-

Runoff in 

acre feet

72

508

6,640

3,930

2 , 830

1,400

4.4C-0

6, ,540

4,050

400

87

56

30 , 800
FEATHER RIVER BASIN 295

West Branch of Feather River near Yankee Hill, Calif.

Location.- Water-stage recorder, lat. 39°42', long. 121°34', in SWt sec. 5, T. 21 N., R. 

4 E., at highway bridge, 1.4 miles downstream from Concow Creek and 2 miles west of 

Yankee Hill. Altitude of gage, about 1,100 feet (from topographic map).

Drainage area.- 145 square miles.

Records available.- September 1930 to September 1942.

Average discharge.- 12 years, 357 second-feet.

Extremes.- Maximum discharge during year, 15,000 second-feet Feb. 6 (gage height, 24.22 

feet); minimum, 5.5 second-feet Sept. 20, 21.

1930-42: Maximum discharge, 21,400 second-feet Dec. 11, 1937 (gage height, 30.3 

feet), from rating curve extended above 15,000 second-feet; minimum, 0.3 second-foot 

Jan. 8, 1937 (gage height, 1.69 feet).

Remarks.- Records good. Spring Valley ditch (see p. 297) diverts water from Concow Creek

 below Lake Wllenor (capacity, 8,000 acre-feet) for power development and irrigation. 

Dewey, Miners, and Hendricks Canals divert from headwaters of West Branch of Feather 

Titver into Butte Creek Easin (see p. 290) for power development in De Sabla and Centerville plants of Pacific Gas ft Electric Co. Round Valley Reservoir (capacity, 1,285 

acre-feet) and Philbrook Reservoir (capacity, 4,875 acre-feet) provide storage on 

headwaters for these three canals.

2.6

2.8

3.0

3.2

3.4

3.7

4.0

4.5

Ra

8

15

26

41

50

93

129

COO

ting tables

Oct. 1 to

5.0

5.5

6.0

6.5

7.0

8.0

9.0

10.0

i, water

Feb. 6

288

396

524

672

844

1,260

1,750

2,320

year 1941-42 (g(

10.3

12.0

14.0

16.0

18.0

19.6

In aeooi

2,510

3,740

5,340

7,100

8,900

10,400

Feb. 7 to Sept. 30

2.6 4.0 5.0 294 

2.8 9.5 5.5 410 

3.0 20 6.0 548 

3.3 47 7.0 888 

3.6 79 8.0 1,280 

4.0 128 9.0 1,770 

4.5 200 10.3 2,510

Note.- Same as preceding 

table above 10.3 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

8

8

8

8.5

8.5

9

10

9.5

8.5

8

9

12

17

17

52

21

10

10

11

11

11

11

10

10

12

74

64

32

18

13

Nov.

42

270

127

121

54

36

30

28

27

25

21

21

22

23

23

80

71

43

32

27

24

22

21

20

20

19

21

22

38

449

-

Dec.

152

1,950

2,410

541

312

219

170

142

124

118

105

93

193

2,630

7,080

7,460

2,500

2,710

2,080

1,880

1,330

1,070

1,130

934

822

675

634

1,080

1,100

891

738

Jan.

610

541

491

454

432

413

1,260

1,420

926

758

675

631

598

510

478

467

432

403

379

361

346

575

1,250

2,420

3,650

3,440

5,910

2,910

1,800

1,360

1,160

Feb.

1,190

2,590

2,360

4,010

5,120

10, -400

4,490

2,760

2,040

1,660

1,330

1, 160

1,030

953

892

823

758

710

676

642

645

616

572

584

554

530

501

482

-

.

-

Mar.

439

398

386

381

386

388

362

367

374

400

560

690

569

591

566

530

501

490

465

433

426

418

465

493

454

408

386

379

391

391

441

Apr.

428

423

1,110

2,470

1,870

1,340

1,090

979

1,000

1,310

1,140

1,110

1,760

2,070

1,510

1,480

1,340

1.190

1,160

1,140

1,080

1,140

1,050

956

975

899

1,070

1,010

899

972

-

May

1,040

870

791

805

758

773

830

784

816

748

888

791

700

707

856

903

848

758

773

926

1,000

1,020

911

874

1,880

1,470

1,110

1,010

881

802

787

June

713

724

683

773

809

809

734

717

720

696

604

636

551

594

610

548

510

482

446

348

336

423

336

352

345

266

266

303

266

221

-

July

222

212

184

181

192

154

122

110

108

99

116

110

80

61

55

57

54

52

45

38

34

29

25

20

18

IS

15

14

13

12

11

Aug.

10

10

10

9.5

9.5

9

9

9

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8

8

7.5

7.5

7.5

7.5

7.5

7.5

7.5

7.5

7

7.5

7.5

8

8.5

Sept.

8.5

7.5

6.5

6.5

6.5

7

7

7

7.5

9

12

10

8.5

8

6.5

6.5

6.5

7

6

5.5

5.5

6

6

7.5

10

10

11

13

13

12

-

Month

March. .................... ... ....

April. ... .... ... . ........... .....

July. ...... ...... ... . ... . .........

Water year 1941-42 . . . ... .....

Secondfoot-days

260,311.0

13,928

15,821

2,459

258.5

243.5

229,601.0

Maximum

449

8,580

809

222

10

13

10,400

Minimum

8

19

93

7

221

7

5.5

5.5

Mean

59 3

713

1,199

527

79.3

8.12

6B9

Runoff in 

acre-feet

516,300

31,380

4,880

513

483

455,400

Peak discharge.- Dec. 2 (11:30 p.m.) 5,700 sec.-ft.; Dec. 16 (12:30 p.m.) 10,400 sec.-ft. 

24 (3:30 p.m.) 4,680 sec.-ft.; Jan. 27 (8:30 a.m.) 8,940 sec.-ft.; Feb. 6 (5 a.m.) 15,000 s 

Apr. 13 (10 p.m.) 3,340 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942: Pacific war time therea 

To convert -.var time to -tandard time, subtract 1 hour.
296 FEATHER RIVER BASIN

Concow Creek near Yankee Hill, Calif.

Location.- Water-stage recorder, lat. 39°46', long. 121°32', in NEv sec. 16, T. 22 II.,

K. 4 E., above diversion dam for Spring Valley ditch, 300 feet downstrean from Lake

Wllenor Dam and 4 miles north of Yankee Hill post office. Altitude of gage, about

1,850 feet (from topographic map). 

Drainage area.- 14.7 square miles. 

Records available.- October 1927 to Septenber 1942. 

Average discharge.- 15 years, 17.4 second-feet. 

Extremes.- Maximum discharge during year, 1,830 second-feet Feb. 6 (gage height, 4.9

feet), from rating curve extended above GO second-feet by computations of flow over

dam; no flow most of year.

,1927-42: Maximum discharge, 2,000 second-feet Mar. 26, 1928 (gage height, 5.9

feet, from floodmarks); no flow for many months in each year. 

Remarks.- Records fairz On Sept. 30, 1941, storage in Lake Wilenor (capacity, 8,000

acre-feet), -was 6,5oO acre-feet, and on Sept. 30, 1942, it was 6,400 acre-feet.

Records show flow passing diversion dam; for total flow out of reservoir, add that

of Spring Valley ditch, which diverts water above station (see following page). 

Cooperation.- Water-stage recorder graph furnished by Table Mountain and Thermalito

Irrigation Districts In connection with a Federal Power Commission project.

Rating table j»ater year 1941-42 (gage height, in feet, and discharge 

in second-feet)

112

174

240

310

382

458

536

738

94S

1,170

1,400

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec.

0

8

16

16

15

15

16

16

16

16

16

16

15

100

510

397

206

237

193

193

193

193

193

193

190

125

79

79

79

79

79

Jan.

79

79

79

81

81

81

81

84

106

90

79

76

79

79

79

76

76

76

76

76

76

75

76

76

219

271

444

233

142

109

90

Feb.

84

274

285

573

684

1, 160

406

223

155

121

101

87

79

76

76

76

76

76

76

76

76

76

76

76

76

76

76

76

-

-

-

Mar.

32

5

5

5

5

1.9

0

0

0

0

0

0

4.1

47

51

56

51

47

40

36

33

30

28

31

2S

25

23

22

22

2O

25

Apr.

26

20

94

346

243

148

95

74

61

71

34

14

56

187

101

84

95

68

45

33

23

18

12

9

6

3.8

31

38

25

40

-

May

79

43

30

22

14

10

7

4.4

5

12

43

40

9.5

2.5

27

40

23

7.5

0

0

0

0

0

0

4.2

43

38

28

20

14

11

June

8

5.5

1.5

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

-

July Aug. Sept.

Month

January. .... . . ... ...... ........

March. ...... .......... . .

April ...... .... . ...... 

May. ........ .... . .

July. ...... . . . ........

September. . ....... . ...

Water year 1941-42 . . . ... ...

Secondfoot days

0

0

3,500

19,490.2

3,425

5,392

673.0

2,100.8 

577.1 

15.0

0

0

0

16,682.9

Maximum

0

0

510

1,180

444

1,180

56

346 

7S

8

0

0

0

1,180

Minimum

0

0

0

0

76

76

0

3.8 

0

0

0

0

0

0

Mean

0

0

113

53.4

110

193

21.7

70.0 

IS. 6 

.50

0

0

0

43.0

Runoff in 

acre-feet

0

0

6,940

38,650

6,790

10,690

1,330

4,170 

1,140 

30

0

0

0

31,090

asis: Pacific standard time 

war time to standard time,

Feb. 9. 1942; Pacific .var- time the
FLATIIL'R RIVER BASIN 2 

Spring Valley ditch near Yankee Hill, Calif.

Location.- Water-stage recorder, lat. 39°46', long. 121°32', in IJEi sec. 16, T. 22 II., 

R. 4 E., just downstream from diversion dan and 4 miles north of Yankee Kill post 

office. Altitude of gage, about 1,840 feet (from topographic map).

Records available.- October 1927 to September 1942. 

Average discharge.- 15 years, 10.4 second-feet.

Extremes.- Maximum daily discharge during year, 36 second-feet Oct. 16; nininum, 0.2 

second-foot at times December to April.

1927-42: Maximum daily discharge, 49 second-feet Oct. 25-27, 1928; no flow at 

times in most years.

Remarks.- Records good above 10 second-feet, fair below. Ditch diverts f;or, left bank 

of Concow Creek GOO feet downstream from Lake Wilenor; water used for power development in Lime Saddle and Coal Canyon plants of Pacific Gas ft Electric Cc. and for 

irrigation in Table Mountain and Thermal!to irrigation districts.

Cooperation.- Wc.ter-stage recorder graph furnished by Table Mountain and Therr,alito 

Irrigation Districts in connection with a Federal Power Conr.isslon project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

16

18

19

19

19

19

19

19

21

21

21

21

21

29

36

19

19

19

19

19

19

19

19

19

19

19

18

18

18

18

Nov.

19

19

19

19

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

18

-

Dec.

18

9

.1

.0

.0

.0

.0

.0

.0

.9

.9

.8

.5

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

Jan.

0.2

.2

.2

.2

.2

.2

.3

.4

.3

.3

.3

. 2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.4

.4

.5

.5

.4

.3

.3

.2

Feb.

0.2

.3

.4

.4

.4

1.0

.5

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

_

_

-

Month

October. ... ... .... ..... . . ........ .

November ...... ...... . . . . . ........ .

December. . . ... . . ........ ...... .

Calendar year 1941 . ........ . ... . . .

January . . ..... ............. ...... .

February. ..... ....... . ......

March. ...........

April. ....

May . . ........

June . . . ... . ..... . . . . .

July. .... . ......

August. . . . . ...... ... . .

September. ....... . .....

Water year 1941-42 .... ...

Mar.

0.2

.2

.2

. 2

.2

.2

.2

.2

.2

.2

.2

.3

.3

.3

.3

.3

.3

.3

.2

.2

.2

.2

. 2

.2

.2

.2

.2

.2

.2

.2

.2

Apr.

C.2

.2

.3

.4

.4

.3

.3

.3

.2

.2

19

31

32

35

33

33

33

33

32

32

31

31

31

31

30

30

31

32

31

32

-

May

33

32

31

31

31

31

30

30

30

31

32

32

29

30

31

32

31

30

28

27

27

27

27

27

29

32

32

31

31

31

30

June

30

30

29

28

28

28

28

27

27

27

2-7

27

21

17

17

.5

.2

.3

.4

.5

.5

.5

.3

.6

.6

.5

.1

.1

.0

.9

-

fool-days Maximum Minlnum

615 36 16

544 19 18

40.8 18 .2

3,101.1 36 .1

8.4 .5 .2

7.6 1.0 .2

6.9 .3 .2

625.8 35 .2

936 33 27

417.3 30 .9

144.1 5.5 .8

307.5 17 5-5

635 31 12

4,288.4 36 .2

July

0.8

2.4

4.4

4.4

4.4

3.8

3.4

3.4

3.4

3.4

3.4

3.4

4.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5-5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

Aug.

5.5

5.5

5.5

6

6.5

6.5

6.5

6.5

6.5

6.5

6.5

6.5

9

10

10

10

10

10

10

11

12

12

15

17

16

16

16

13

12

12

12

Mean

19.8

18.1

1.32

8.50

.27

.27

.22

20.9

30.2

13.9

4.65

9 . 92

21.2

11.7

Sept.

12

12

13

14

16

17

17

17

17

17

17

17

17

17

17

18

19

19

21

22

24

29

31

31

31

31

31

31

30

30

-

Runoff in 

acre-feet

1,220

1,080

81

6,160

17

15

14

1,240

1,860

828

2B6

610

1,260

8.510

Note. 1 No gage-height record Dec. 14-16, Lee. 18 to Jan. 2; discharge based on one field estimate

and fin* on Jan. 3.

Time basis: Pacific standard time prior to 2 a.m., feb. 9, 1942; Pacific war time thereafter.

To convsrt 'var time to standard time, subtract 1 hour.

530350 O 41 20
298 FEAT:;ER RIVER BAP.I.I

Middle Fork of Feather River near Clto, Calif.

Location.- Water-stage recorder, lat. 39°45', long. 120°35', in E* sec. 23, T. 22 N., R. 

 12 E,, 0.3 mile upstream from Frazier Creek and 1.5 miles northwest of Clio. Altitude 

of gage, about 4,350 feet (from topographic map).

Drainage area.- 699 square miles.

Records available.- October 1925 to September 1942.

Ayerage_dlsc1narge.- 17 years, 247 second-feet.

Extremes.- Maximum discharge during year, 5,800 second-feet Jan. 27 (gage height, 10.65

feet): minimum, 21 second-feet Aug. 24.

1925-42: Maximum discharge, 11,000 second-feet Mar. 26, 1928 (gage height, 12.0

feet), from rating curve extended above 7,000 second-feet; minimum, 4.3 second-feet

Sept. 5, 1934. 

Remarks.- Records good except those for October and November, which are fair. Many small

diversions above station for irrigation.

Rating tables, water year 1941-42 (gage height, In feet, and discharge, in

second-feet) 

(Shifting-control method used Oct. 1 to Dec. 2)

Oct. 1 to Feb. 7 Feb. 8 to Sept. 30

2.4 22 2.9 70 '3.9 280 6.0 1,020 2.4 24 3.2 127 

25 28 3.0 85 4.2 362 7.0 1,630 2.5 32 3.4 170 

s'.B 36 3.2 119 4.5 450 8.0 2,420 2.6 41 3.6 216 

27 45 3.4 160 5.0 605 9.0 3,420 2.7 51 3.9 294 

28 56 3.6 205 5.5 790 9.8 4,550 2.8 63 4.S 382 

3.0 92 4.5 478

5.0 665 

5.5 875 

6.0 1,110 

7.0 1,670 

8.0 2,420 

9.0 3,420

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

27

29

29

29

30

30

30

30

30

30

30

31

33

33

33

33

32

32

32

32

35

35

34

34

34

34

47

42

43

42

42

Nov.

50

70

54

52

50

49

63

53

53

53

53

54

53

53

53

76

67

64

63

62

60

60

59

57

57

57

57

59

70

85

Dec.

85

288

618

267

187

210

267

264

219

175

137

117

114

234

402

1,160

574

498

664

734

555

429

396

320

298

259

203

194

178

173

147

Jan.

119

Feb.

1.430

115 ( 1,300

1191 1,220

119 1.540

121

121

210

373

342

345

356

379

417

414

359

326

1,760

3,210

3,620

3,070

2,010

1,420

1,100

884

637

458

532

489

275 | 482

254

229

200

171

184

267

600

i,nc

1,660

4,480

4,240

4,250

3,020

1,960

478

444

422

406

388

352

355

31C

300 2<J7

272

_

-

Month

October . ...... ....... ......... ....... .

No vembe r ...... ......................... .

December ... ................. ...... . . .

Calendar year 1941 ....... .......... . .

January. ....... . . ... .... ........ . .

February. ... . . ....... ..... ....

March. ... ........... ..........

April. ... .... ......... ....

May nir ... .... . . . .... . ...... . ...

June . . . ... . . ..... . ........... .

July. ................

August. ...... .... . . . . .

September. . ....

Water year l'J4l-42 .....

Mar.

266

283

300

316

373

441

441

485

557

637

790

956

988

960

830

839

834

790

697

625

576

576

576

576

539

507

471

471

482

503

576

Apr.

1

657

713

996

.830

1,910

2,010

1

1

1

,980

,760

,660

1,600

1,610

:

]

]

,730

,840

,870

1,840

1,980

Secondfoot-days

1,037

1,706

10,366

101,844

27 , 205

29,192

IB, 2(31

40,667

16,824

8,474

1,896

902

830

157,420

Peak discharge.- Jan. 27(8 a.m.) 5,80'J sec. -ft.; Fob

fTSe" b~aTl37~"4 Paeific stnnaarJ tL-ne prior to 2 a..-!., F«

To convert TO:* timf to standiird time, nubtr'jct 1 hour.

L,820

,450

,290

,200

,080

,070

965

880

839

773

757

794

857

906

-

May

834

709

645

580

521

478

468

451

425

418

468

447

412

409

422

434

400

385

373

382

415

441

382

358

711

1,040

753

749

761

816

737

Maximum

47

35

1,160

1,900

4,480

3,620

988

2,010

1,040

645

98

35

29

4,480

June

645

583

539

503

478

451

409

379

361

337

311

288

269

261

261

256

235

223

204

188

170

166

172

121

116

121

119

106

102

100

-

Minimum

27

49

85

21

115 Z"'Z

266

657

35-i

100

3D

24

25

24

July

98

95

94

90

88

83

78

73

67

66

70

73

67

64

67

62

58

56

55

53

49

48

44

41

40

39

37

36

3S

35

35

Aug.

Mean

33.5

58.9

334

279

873

1,043

589

1,356

543

282

61.?

29.1

27.7

431

7 (12:30 p.m.) 3,960 sec.-f ,.

b. 9, 1942; Pacific war timo tner

35

35

34

33

32

32

31

31

30

26

27

29

30

28

2P

29

29

29

28

28

27

27

26

24

24

26

272 V-J

30

29

29

Sept.

29

29

29

28

28

28

27

27

29

29

29

28

27

27

23

29

29

29

29

29

29

28

27

26

26

25

25

25

26

26

"

Runoff in 

acre- feet

2,060

3,500

20,560

202,000

53,960

57,900

36,220

80,660

33,370

10,810

3,760

1,790

1,650

312,200

eafter.
FEATHER RIVER BASIN 299

Middle Fork of Feather River below Sloat, Calif.

LOC l|1mliesWdown'strtam from^1*' lat ' 39 °52 '' lone ' i20 "46 ,1 . half a nile west of Bells Bar,

of gage, about 4^050 feet ffrom^opographic map)?b°Ut ** mUeS W9St ° f S1 °at' Altltu<te

Drainage area.- 835 souare miles.

^Mffgngffife e=lr, ^« ^JSP^rmS. J*ecprds_published_for period

SeC °nd-feet Jan ' 27 'Sage height, 10.45 

194194°~42: Ifeximum discharge, that'of Jan. 27, 1942; minimum, 70 second-feet Sept. 11,

Maximum stage known, 13.2 feet from floodmarks, probably in February 1940 (discharge, 

13,300 second-feet, from rating curve extended above 9,000 second-feet)! 

fffir'" p^°rdS g?°2 2X£ep^ thos ? for Periods of doubtful gage-height record, which are 

hf, ni !LreP^ted by diversions above station for irrigation, and to a small extent 

uy ITIJ.XI pond at bloat.

Rating tables, water year 1941-42 (gage height,in feet, and discharge, in second-feet) 

Oct. 1 to Apr. 3 Apr . 4 to Sept . 30

1.2 

1-4 

1.6 

1.8 

2.0 

2.3

69

83

100

125

158

216

2.6 

3.0 

3.4 

3.8 

4.2 

5.0

290

414

566

760

1,020

1,690

6.0 

7.0 

8.0 

9.2

2,660

3,840

5,100

6,770

1.1 

1.3 

1.5 

1.7 

2.0 

2.3 

2.6

75

92

111

136

180

244

326

3.0 

3.5 

4.0 

4.5 

5.0 

5.8 

6.6

460

685

1 010

1,380

1,770

2,490

3,360

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

77

77 

77 

77 

77

73 

79 

79 

78 

79

79 

80 

81 

81 

80

80 

80 

79 

78 

79

81 

84 

B2 

62 

82

81

100 

100 

92 

69 

90

Nov.

99 

176 

131 

122 

106

100 

103 

104 

98 

97

96 

96 

93 

91 

91

124

111 

104 

100 

100

98 

97 

97 

96 

96

96 

96

98 

117 

189

Dec.

148 

838

2,410 

685 

425

370 

397 

387 

339 

293

252 

225 

223 

414 

1,470

3,350

1,510 

1,140 

1,280 

1,390

1,020 

784 

696 

592 

534

477 

414 

418 

333 

350 

330

Jan.

287 

280 

333 

330 

296

274 

514 

808 

655 

610

588 

588 

601 

597 

534

507 

443 

418 

387 

354

321 

354 

430 

1 ,090 

2,550

3,030 

6,730 

5,850 

5,360 

4,000 

2,710

Feb.

2,160 

2,200 

2,130 

2,370 

2,750

5,450 

4,580 

3,860 

2,650 

2,000

1,580 

1,300 

1,050 

778

760 

716 

705 

675 

642

628 

610 

554 

558 

516

492 

488 

454

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

MAV

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1941

St. ........ . ..............

ember. . . 

ter year 1941-42 .... ..........

Mar.

446 

465 

473 

492 

542

646 

642 

680 

754 

859

1,080 

1,280 

1,360 

1,250 

1,140

1,080 

1,110 

I,0b0 

950 

878

808 

814 

814 

820 

766

715 

680 

680 

700 

744 

846

Apr.

957 

1,040 

1,^30 

2,980 

2,330

2,740 

2,620 

2,420 

2,350 

2,320

2,?40 

2,520 

2,830 

2,940 

2,660

2,720 

2,550 

2,120 

1,950 

1,870

1,760 

1,840 

1,750 

1,590 

1,550

1,460 

1,440 

1,430 

1,420 

1,470

Secondfoot days

2, £38 

3,222 

23 , 551

232,948

41,879 

43, -524 

25,635 

62,197 

39,130 

29,219 

8,012 

3,014 

2,468

23-1,309

f

eak discharge.- Dec. 16 (8 a.m.) 4,020 sec. -ft.; Jan.

40 sec. -ft. 

Note.- Doubtful gH je-height reccvd May 11-31 an". June

tor stati.m at Bldwell Bar.

May

1,420

1,260 

1,200 

1,130 

1,060

1,060 

1,140 

1,230 

1,240 

1,160

1,150 

1,050 

950 

870 

950

920 

900 

950 

1,000 

1,150

1,350 

1,500 

1,400 

1,300 

1,450

2,300 

1,900 

1,620 

1,550 

1,520 

} ,450

Maximum

100 

189 

3,350

4,260

6,730 

5,450 

1,360 

2,980 

2,300 

1,400 

478 

121 

89

6,730

June

1,380 

1,380 

1,320 

1,340 

1,400

1,360 

1,300 

1,250 

1,220 

1,200

1,150 

1,120 

1,100 

1,050 

1,050

1,040 

1,010 

326 

870 

824

745 

674 

658 

663 

610

571 

527

511 

492 

47S

Minimum

77 

91 

148

72

274 

454 

446 

957 

870 

47B 

121 

83 

79

77

July

478 

478 

470 

450 

432

408 

383 

353 

323 

302

288 

283 

270 

254 

242

227 

216 

205 

196 

189

177 

169 

161 

150 

143

139 

132 

127 

124 

122 

121

Aug.

121

119 

117 

113 

111

111 

109 ioe

104 

98

97 

99 

100 

96 

96

94 

92 

90 

90 

89

90 

68 

86 

85 

83

83

86

90 

89

Sept.

87 

66 

86 

85 

85

e.4

84 

83 

87 

89

S7 

85 

65 

82 

81

83 

83 

81

81 

81

i'l 

81 

61 

31 

80

79 

79 

79 

81 

81

.. Runoff in Mean acre-feet

81. 9 5,030 

107 6,390 

760 46, 'lO

633 162,000

1,351 3.3,070 

I,b51 86,130 

8_'7 50,850 

2,073 123,400 

1,262 77,610 

974 57,960 

25S 15,890 

97 . 2 5 , 960 

82.9 4,930

779 564,000

27 (11 P..7H.) 3,720 sec. -ft.; Feb. 6 (7 a.m. 

7-15; di.3'-harge computed on basis uf records

?ta.-dr.rd time.
300 FEATHER RIVER BASIN

Middle Fork or Feather River at Bldwell Bar, Calif.

Location.- Water-stage recorder, lat. 39°3o', long. 121°26', in NWi sec. 32, T. 20 U., 

R. 5 E., at highway bridge at Bidwell Bar, 2 miles upstream from confluence with North 

Fork and 7 miles northeast of Orovllle. Altitude of gage, about 290 feet (from 

topographic map).

Drainage area.- 1,353 square miles.

Records available.- October 1911 to September 1942.

Average discharge.- 31 years, 1,805 second-feet.

Extremes.- Maximum discharge during year, 35,100 second-feet Feb. 6 (cage height, 16.45 

feet); minimum, 253 second-feet Oct. 4.

1911-42: Maximum discharge, 93,000 second-feet Dec. 11, 1937 (gage height, 24.0 

feet, from floodmarks), from rating curve extended above 25,000 second-feet on basis 

of velocity-area and A"vQ~ studies; minimum,60 second-feet Jan. 8, 1937.

Remarks.- Records good except those for period of doubtful gage-helpht record, which 

are fair. Reservoirs and diversions above station are comparatively snail.

Eating table, water year 1941-42 (gage height. In feet, and discharge, 

in second-feet)

2.5 238 3.6 615 5.5 1,860 9.0 6,200 

2.6 260 3.9 760 6.0 2,330 11.0 10,640 

2.8 315 4.2 915 6.5 2,850 13.0 17,780 

3.0 375 4.6 1,170 7.0 3,420 15.3 27,600 

3.3 485 5.0 1,450 8.0 4,710

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26

27 

28 

29 

30 

31

Oof.

265 

262 

£56 

258 

260

260 

265 

268 

268 

268

270 

272 

268 

285 

282

278 

275 

272 

272 

278

280 

282 

265 

280 

294

294 

453 

477 

36s) 

345 

3£7

Nov.

414 

1,160 

866 

800 

570

461 

420 

400 

396 

378

369 

363 

333

3S7 

357

477 

505 

457 

417 

396

382

375 

?7 = 

369 

366

3-53 

363 

363 

434 

1,200

Dec.

820 

4,140 

10,800 

3,400 

2,020

1,580 

1,390 

1,280 

1,180 

1,160

1,050 

951 

963 

4, ISO 

11,600

19,900 

9,410 

6,920 

6,460 

6,340

5,110 

4,120 

3,830 

3,250 

2,920

E.630 

2,560 

3.0PO 

3,090 

2,750 

E.450

Jan.

2,100 

1 ,870 

1,770 

1,680 

1,610

1,560 

3,870 

4,960 

3,900 

3,410

3,120 

8,960 

2,840 

2,740 

2,600

2,550 

2,360 

2,200 

2,080 

1,980

1,880 

2,290 

3,360 

5,920 

14,400

14,-)00 

23,200 

1 6 , 900 

12,800 

9.B30 

7,440

Feb.

6,640 

7,SOO 

8,140 

10,500 

12,500

27 ,600 

18,200 

13,700 

9,9~J 

7,700

6,460 

5,650 

4,990 

4,380 

4,000

3,610 

3.56C 

3,400 

3,200 

3,070

3,100 

2,990 

2,760 

2,710 

2,560

2,440 

2,350 

2,230

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

lendar year 1041 

ary

ter year 1941-42 .... ..........

Mar.

2,170 

2,150 

2,1£0 

2,110 

2,160

2,300 

2,300 

2,310 

2,420 

2,590

3,3oO 

4,000 

3.92C 

3,710 

3,470

3,190 

3,180 

3,160 

3,020 

2,850

2,730 

2,6(30 

2,660 

2,670 

2,570

2,450 

2,360 

2,330 

2,330 

2,400 

2,610

Apr.

2,800 

2,900 

4,820 

10,300 

9,890

7,940 

7,000 

6,420 

6,250 

6,410

6,380 

6,600 

7,950 

9,540 

7,720

7,480 

6,920 

6,100 

5,740 

5,620

5,470 

5,820 

5,760 

5 , P80 

5,170

4 ,890 

5,110 

4,890 

4,460 

4,630

Secondfoot days

9,108 

14,513 

l.n,274

1,051,905

164,480 

186, E40 

84,300 

136,260 

152,790 

S3, 540 

28, £51 

12,530 

8,867

1,071,153

Peak discharge.- Dec. 3. (1 a.m.) 17,?00 sec. -ft.; Dec

May

4,710 

4,240 

4,080 

4,070 

3,920

3,990 

4,270 

4,670 

4,910 

4,680

4,540

4,140 

3,860 

3,740 

4,210

4,120 

4,000 

4,090 

4, .530 

5,060

5,720 

6, ISO 

fa, 710 

5,410 

8,210

8,4?0 

6,570 

5,890 

5,330 

4,960 

4.71C

Maximum

477 

1,200 

lfc,900

23,100

23 , 200 

2 ,600 

,000 

1 ,300 

,420 

,640 

,480 

550 

330

27,600

June

4,600 

4,640 

4,460 

4,510 

4,640

4,640 

4,200 

3,960 

3,960 

3.8PO

3,640 

3,430 

3,280 

3,230 

3,220

3,050 

2,860 

2,700 

2,580 

2,390

2,230 

2,110 

2,080 

2,040 

1 ,920

1,820 

1,730 

1,640 

1,590 

1,520

Minimum

E56 

367 

820

E56

1,560 

2,260 

2,110 

2,800 

3,740 

1.52C 

566 

330 

262

E56

July

1,480 

1,440 

1,400 

1,340 

1,300

1,230 

1,170 

1,110 

1,050 

1,010

975 

951 

927 

898 

866

S50 

825 

805 

790 

770

750 

720 

700 

675 

651

628 

610 

602 

588 

574 

566

Aug.

550 

540 

530 

510 

500

480 

470 

460 

450 

440

430 

420 

410 

400 

390

380

370 

370 

360 

360

350 

340 

340 

340 

340

340 

340 

330 

330 

320 

560

Mean

E94 

404

E,8Sa

5,306 

6,651 

2,719 

6,209 

4,92': 

3,085 

911 

404 

296

2.935

Sept.

330 

330 

330 

330 

330

330 

330 

330 

B30 

327

318 

309 

303 

300 

294

285 

282 

272 

265 

270

272 

!;72 

270 

268 

265

265 

265 

E62 

265 

268

Runoff in 

acre-feet

IS, 070 

28,790 

260,400

2,086,000

320,200 

369,400 

167, KOC 

3t>i,400 

.'03,100 

183,600 

56,040 

24,850 

17,590

2,1P5,000

16 (1 P.O.) 24,400 sf-c-.-ft.; J*n. 25 (7 p.m.

16,100 sec.-ft. j Jan. 27 (11 *.m.) 27,800 aoc.-ft.; Feb. 6 (8 a'.m.) 35,100 aec.-ft.;~Arr. 13 

(10:30 p.m.) 11,100 arc.-ft.

Note.- Oage-height record doubtf'il Aug. 1 to Sept. 9; discharge computed on basis of rec/-o<:> for 

station belt* Sloat.

T'.me basl:. s Pacific -jt.ui.inrd ti. e prior to :> a.m., Feb. f, 194E; Pacific w«r tine the real" _or.
FEATHER RIVER BASIN 301

South Fork of Feather River at Enterprise, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 121°21', In SWi sec. 6, T. 19 II., R.

6 E., 0.8 mile upstream from McCabe Creek and 1 mile upstream from highway bridge at

Enterprise. Altitude of gage, about 550 feet (from topographic map). 

Drainage area.- 134 square miles. 

Records available.- September 1930 to September 1942. October 1911 to September 1930 at

site half a mile downstream. 

Average discharge.- 31 years, 306 second-feet. 

Extremes.- Maximum discharge during year, 8.360 second-feet Feb. 6 (gage height, 15.05

feet); minimum, 6 second-feet (regulated) Oct. 23.

1911-42: Maximum discharge, 17,300 second-feet Dec. 10, 1937 (gage height, 20.4

feet), from rating curve extended above 5,000 second-feet on basis of velocity-area

and A VcTstudies; minimum, 0.2 second-foot Aug. 11, 1917. 

Remarks.- Records good, except those above 5,000 second-feet, which are fair. Storage and

diversions above station for Irrigation. See record for Palermo Canal at Enterprise

(p. 302 ).

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet)

Oct. 1 to May 25 May 26 to Sept. 30

1.7

1.8

1.9

2.0

2.2

2.4

2.7

3.0

8.5

11

14

17.5

26

39

67

98

3.4 146

3.8 204

4.2 270

4.6 348

5.0 438

5.4 534

6.0 696

7.0 1,070

e.o

9.0

10.0

11.0

12.0

13.6

1,550

2,150

2,850

3,700

4,700

6,520

2.1

2.2

4.2

4.6 

5.0

126

182

254

340

436

534

2.5 40

2.8 63 5.4

3.1 92

Note.- Same as preceding table above 5.4 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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

10

10

10

10

10

10

10

9.5

9.5

10

12

15

13

13

13

12

12

13

15

16

16

15

20

22

22

56

48

31

22

23

Nov.

34

139

100

99

62

46

41

37

35

33

31

28

28

28

28

41

55

50

45

38

36

34

33

34

31

31

31

30

56

160

-

Dec.

99

735

1,430

491

314

241

202

177

160

174

149

134

190

1,150

2,640

4,550

1,880

1,530

1,320

1,210

918

729

685

578

527

467

472

656

674

581

498

Jan.

421

374

355

328

306

294

685

982

714

629.

581

542

515

491

469

467

438

414

392

374

359

479

733

1.450

3,190

3,110

4,580

2,850

1,920

1,440

1,160

Feb.

1,050

1,630

1,710

2,280

2,630

6,440

3,580

2,430

1,870

1,500

1,250

1,070

938

838

760

705

662

629

596

573

581

563

520

515

481

462

450

433

-

-

-

Mar.

421

412

399

392

390

399

383

385

396

416

578

690

634

596

555

529

510

505

488

464

452

445

443

443

421

405

396

390

390

392

426

Apr.

440

443

902

2,010

2,020

1,460

1,160

1,020

978

1,020

982

1,000

1,240

1,590

1,260

1,190

1,050

942

898

866

842

910

902

838

823

774

846

788

702

746

-

May

774

686

665

668

657

665

714

770

816

784

774

693

654

634

781

733

696

702

746

850

958

1,010

930

882

1,520

1,480

1,150

990

858

770

708

June

693

690

674

668

671

654

604

578

570

544

516

486

465

446

412

342

314

294

270

246

229

214

2S1

221

209

196

180

171

162

149

-

July

142

137

130

122

114

110

103

96

92

88

83

83

82

78

73

71

68

66

64

63

59

56

52

48

44

43

41

43

41

39

37

Aug.

36

34

32

32

31

31

29

28

26

24

25

24

24

23

22

22

21

20

19

19

19

20

18

17

17

18

19

18

17

18

17

Sept.

16

16

16

16

16

15

15

16

16

16

16

15

15

14

14

14

14

13

12

12

13

13

13

13

13

13

13

13

14

13

-

Month

April. .... ... ......... ........ ..... ...

May. ........... ...........................

Water year 1941-42 ... ..... ........ ...

Secondfoot-days

25 SG1 '

181,855.0

Maximum

36

6,440

Minimum

9

294

17

9.5

Mean

498

Runoff in 

acre-feet

360,700

Peak discharge.- Dee. 2 (11 p.m.) 2,500 see.-ft.j Dee. 16 (5 a.m.) 5,920 sec.-ft.j Jan. 27 (10 

a.m.F 6,100 see.-ft.; Feb. 6 (8 a.m.) 8,360 sec.-ft.; Apr. 5 (6 a.m.) 2,260 sec.-ft.; May 25 (3 

p.m.) 2,220 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
302 FEATHER RIVER BASIN 

Palermo Canal at Enterprise, Calif.

Location.- Water-stage recorder and Parshall flume, lat. 39°32', long. 121°21', in SWi 

sec. 6, T. 19 N., R. 6 E., 400 feet downstream from intake at diversion dam on South 

Fork of Feather River, 1 r.ile upstream from McCabe Creek, and 1 mile southeast of 

Enterprise. Altitude of gage, about 600 feet (from topographic nap).

Records available.- October 1911 to September 1942. 

Average discharge.- 31 years, 18.4 second-feet.

Extremes.- Maximum daily discharge during year, 33 second-feet July 1; minimum daily, 

0.6 second-foot May 11-14.

1911-1942: Maximum discharge recorded, 43 second-feet July 25, 1927; no flow for 

periods in each year except 1939, 1941, and 1942.

^emart-s.- necords excellent except those for period of no gage-height record, which are 

: l;oM. Canal diverts from left bank of South Fork of Feather River 1 mile above Enterprise. Water is used for irrigation near Orovllle.

Cooperation.- Gage-height record collected in cooperation with'Oroville-Wyandotte Irrigation District.

Discharge, in second-feet, water year October 194] to September 1943

Day

1 

2 

3 

4 

5

6 

7 

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.

23 

23 

23 

23 

82

23 

83 

23 

22 

23

23 

22 

22 

21 

88

22 

81 

21 

80 

20

20 

20 

17 

15 

15

Ih 

16 

16 

15 

15 

14

Nov.

Ib 

16 

16 

15 

15

14 

14 

14

14 

14

14

14 

14 

14 

14

14 

14 

14 

14 

14

14 

14 

14 

14 

14

14

14 

14 

14 

15

Dec.

15

16 

28

19

18 

16 

15 

14 

14

14 

14 

14

15 

14

.8

j . 6 

.5 

.5

.6

.8 

.8

.8 

.6

.a

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Wa

Jan.

.8 

.6 

.6 

.6 

.6

.6 

.8 

.8 

.6 

.6

.6

'. .6 

.6 

.6

.6 

.6 

.5 

.5 

.5

.6 

.6

.8

.5

.5 

.8 

1.4 

1.3 

1.2 

1.2

Feb.

1.2 

2.6 

3.H 

3.8 

4.0

1.9 

1.9 

2.0 

2.2

2.2 

2.2 

2.0 

1.9 

1.9

1.9 

1.9 

1.9 

1.9

1.9

2.0 

2.3 

2.3 

2.3

2.3 

2.3 

2.3

mber. . . 

lendar y 

ary

ear 1941

h

ter year 1941-42 ... ..... ....

Mar.

. aS. 5

Apr.

' a2.5

2.4 

2.3

May

8.3 

2,3 

2.3 

2.2 

2.8

2.2 

2.8 

2.8 

1.2 

.7

.6 

.6 

.6 

.6 

5

9 

9 

9 

9 

9

9.5 

9.5 

9.5 

9. ft 

9.5

9.5 

9

8.5 

8.5 

8.5 

8

Second- Maximum 

foot-days

620 23 

42E 16 

320.0 2:3

6,064.3 ??

130... 5.F. 

67. .0 4.0 

77.5 

74.7 

171.7 9.5 

652 32 

944 53 

949 Z'd 

824 30

5,P!4.1| 33

a No gage-height record; discharge competed on basl^ of recorded 

measurement. 

Time baols: Pacific strndard time prir r to 2£!.m. . Feb. 9. ^ 942

June

8 

8 

8 

10 

16

17 

17 

17 

17 

17

17 

17 

18 

20 

81

2C 

24 

27 

27 

26

27 

88 

89 

30 

30

30 

31 

31 

30 

32

Minimum

14 

14

4.5

2.9

1.2 

1.2

2.3 

.6 

8 

29 

29 

25

.6

July

33 

31 

30 

89 

30

30 

30 

31 

31 

31

31

31 

31 

30 

30

30 

30 

30 

30 

29

29 

30 

31 

31 

31

31 

31 

31 

31 

30 

30

Aug.

30 

30 

31 

31 

31

31 

30 

30 

31 

38

38 

32 

32 

38 

31

31 

31 

31 

30 

30

30 

31 

30 

30 

30

30 

30 

30 

30 

30 

29

Sept.

89 

89 

29 

89 

29

28 

28 

29 

30 

29

89 

28 

28 

28 

27

27 

87 

26 

85 

86

86 

86 

86 

86 

26

26 

27 

27 

27 

87

Mean Runo" i? "° Ba" acre-feet

20.0 1,230 

14.3 849 

10.3 635

16.6 12,040

4.20 258 

2.85 185 

2.5 1S4 

2.49 148 

5.54 .541 

21.7 1,290 

30.5 1,870 

30.6 l.n-0 

27.5 1,630

14.4 10.410

Pscl:''c war time tii^r 3«f ter.

To convert war line to standsi-d ti.,,e, subtract 1 ho-
FEATHER RIVER BASIN 

M'ddle Fork of Yuba River at Milton, Calif.

303

Location.- Water-stage recorder and concrete spillway control, lat. 39°31'22", long.

120°35'01", In SWi sec. 12, T. 19 N., R. 12 E., at diversion dam of Nevada Irrigation

District, at old town site of Milton, 8 miles upstream from South Fork of Middle Fork.

Altitude of gage, about 5,700 feet (from topographic map). 

Drainage area.- 41 square miles. 

Records available.- October 1928 to September 1934, October 1935 to September 1942.

December 1925 to September 1928 at site 0.2 mile downstream. 

Average discharge.- 13 years (1926-30, 1931-34, 1935-40, 1941-42), 106 second-feet (based

on combined flow of Middle Fork at this station and of Milton-Bowman tunnel at outletX 

Extremes.- Maximum discharge during year, 1,600 second-feet May 25 (gage height, 1.72

feet); no flow over dam for long periods.

1925-34, 1935-42: Maximum discharge, 6,800 second-feet Dec. 11, 1937 (gage

height, 4.18 feet), from rating curve extended above 1,500 second-feet by weir formula;

practically all low flow diverted after May 23, 1928. 

Remarks.- Records good, except those for period of no gage-height record, which are poor.

Milton-Bowman tunnel diverts water above station to Bowman Lake. (See p.308). 

Cooperation.- Water-stage recorder graph furnished by Nevada Irrigation District.

Rating table, water year 1941-42 (gage height, in feet, and discharge,

in second-feet) 

(Shifting-control method used June 16-25)

0 0

42

88

143

207 

277 

35* 

440 

535

1.0

1.1

1.2

1.3

1.4

640

750

870

1,000

1,130

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec.

0

217

498

7.5

0

0

0

0

0

0

0

0

0

0

37

264

0

0

0

0

0

0

0

0

0

0

c

0

0

0

0

Jan. Feb. Mar. Apr.

0

0

0

0

0

0

0

0

0

0

0

40

e

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

May

0

0

0

0

0

0

0

a SO

alOO

alOO

alOO

0

0

0

0

0

0

alOO

a 250

3475

834

896

750

810

1,090

 706

488

468

488

450

354

June

440

506

526

662

762

695

598

598

662

608

556

526

535

566

S35

207

235

221

188

132

99

94

94

78

42

13

13

1.7

0

0

July Aug. Sept.

Month

Uftv

Water year 1941-42 ... . . . ...... ....

Secondfoot-days

0

0

1,072.5

0

0

48

19,622.2

Maximum

0

0

497

0

0

0

1,090

Minimum

0

0

0

0

0

0

0

0

0

0

Mean

0

0

34.6

0

0

0

1.60

S4.3

Runoff in 

acre-feet

0

0

2,130

0

0

95

0

39,320

a No gage-height record; discharge 

Fork Yuba River above Oregon Creek.

Time basis; Pacific standard time 

Tc convert war time to standai'd time

computed on basis of records for Milton-Bowman tunnel and Middle

prior to 2 a.m., Feb. 9, 1942; Pacific wor tlire thereafter. 

, subtract 1 hour.
304 FEATHER RIVER BASIN 

Middle Fork of Yuba River above Oregon Creek, Calif.

Location.- Water-stage recorder, lat. 39°23', long. 121°05', in SWi sec. 28, T. 18 N.,

 R. 8k!., 500 feet upstream from Oregon Creek and 2 miles northeast of North San Juan. 

Altitude of gage about 1,450 feet {from topographic map). Prior to Aug. 26, 1941, 

staff gage at same site and datum.

Drainage area.- 170 square miles.

Records available.- March 1941 to September 1942. July to October 1000 and October 1910

 to February 1941, at site one mile below Oregon Creek (records not equivalent).

Extremes.- 1941: Maximum discharge observed during period March to September, 2,840 

second-feet May 13 (gage height, 10.23 feet); minimum discharge, 36 second-feet 

Sept. 10.

1941-42: Maximum discharge during water year, 7,460 second-feet Jan. 27 (gage 

height, 10.23 feet); minimum during period, 36 second-feet Oct. 1-4.

Remarks.- Records good. ililton-Bowman tunnel (see p. 308), above station, has diverted

 water to Bowman Lake since 1928. Some small diversions above station.

2.1 

2.3 

2.6 

3.0 

3.4 

3.8

Rating tables, period Mar. 1, 1941 to Sept. 30, 1942 (gage height. In feet, 

and discharge, In aeeond-feet)

Mar. 1 to Sept. 30, 1941

32

57

105

180

280

412

4.4

5.0 

5.6 

6.S

7.0

655

930

1,260

1,720

2,680

Oct. 1, 1941, to May 25, 1942

4.4 660 7.0 2.500 

5.0 950 8.0 3,690 

5.6 1,300 9.0 5,200 

6.2 1,760

Note.- Same aa preceding 

table below 4.2 feet.

May 26 to Sept. 30, 1942

2.0 35 3.2 240 

2.2 58 3.5 320 

2.5 101 3.9 450 

2.9 175

Note.- Same aa preeedIng table above 3.9 feet.

Discharge, In second-feet, 1941-42 

1941

Day

1

2

3

4

5

6

7

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. Dec. Jan. Feb. Mar.

,510

,370

,210

,160

,030

910

826

786

754

745

718

704

682

668

624

594

619

632

614

578

542

522

502

482

482

478

486

502

583

546

526

Apr.

578

655

619

1,300

1,060

871

812

763

812

799

740

691

678

700

714

709

646

602

570

542

538

546

562

582

637

664

673

673

691

686

-

May

691

772

945

1,020

1,130

1,100

1,010

970

1,110

1,080

1,220

1,620

2,680

1,670

1,190

1,120

1,120

1,130

862

776

876

1,050

1,100

1,040

1,010

1,160

1,050

960

871

808

804

June

745

745

740

727

776

781

880

700

602

619

660

398

326

316

274

260

239

221

214

202

195

189

209

221

207

187

189

209

180

166

-

July

156

147

143

136

128

123

116

107

107

105

102

102

98

93

91

90

98

90

85

S3

80

78

75

72

72

75

75

82

77

72

70

Aug.

66

63

63

60

62

60

62

63

60

57

58

58

57

56

54

53

53

53

52

52

50

49

49

49

49

48

48

49

49

48

48

Sept.

47

52

53

49

48

47

44

43

42

40

40

42

42

42

42

42

40

39

40

40

42

39

39

39

39

38

38

37

37

37

-
FEATHER RIVER BASIN 305

Discharge, in second-feet, of Middle Fork of Yuba River above 

Oregon Creek, Calif., 1941-42 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

Oct.

36

36

36

36

37

37

37

38

38

38

37

39

43

40

39

38

37

37

37

38

40

44

40

39

42

43

60

63

50

47

45

Nov.

67

219

158

112

80

64

57

54

53

50

49

49

49

48

48

83

80

64

57

53

52

50

49

48

47

47

47

47

60

114

-

Dec.

85

448

2,580

566

263

189

156

136

125

130

114

107

123

572

1,590

3,100

1,270

1,040

980

930

728

566

550

450

383

339

349

574

610

534

427

Jan

326

272

242

221

204

193

824

1,310

850

700

642

597

550

510

478

458

408

369

336

310

29£

373

566

1,100

2,760

2,850

5,190

2,780

1,750

1,310

1,070

Feb.

940

1,210

1,490

1,880

2,220

4,500

2.860

1,900

1,460

1,190

1,020

895

790

710

646

597

546

514

478

446

458

439

401

394

369

356

336

323

.

-

-

Mar.

31S

316

310

313

332

356

329

339

359

369

588

795

687

624

566

526

514

514

482

446

423

416

405

401

376

349

336

326

326

335

373

Apr.

394

405

872

1,660

1,790

1,370

1,120

1,010

915

1,010

980

970

1,100

1,410

1,150

1,120

1,040

940

935

925

880

925

890

800

790

750

815

780

692

741

-

May

605

760

718

692

674

692

736

825

950

800

785

714

678

692

910

910

830

815

830

1,130

1,800

1,950

1,740

1,730

2,730

2,470

1,780

1,620

1,380

1,230

1,150

June

1,210

1,320

1,240

1,360

1,530

1,540

1,350

1,270

1,340

1,340

1,190

1,150

1,100

1,130

1,150

860

736

696

660

566

486

443

440

422

377

320

308

270

252

245

-

July

240

235

222

211

201

191

181

169

163

153

144

136

132

131

129

125

118

116

111

108

104

100

98

94

90

86

85

83

80

79

76

Aug.

76

75

73

71

71

69

66

65

64

62

61

62

61

58

57

57

56

54

53

52

52

51

c51

c51

C51

c50

c50

c50

050

c50

50

Sept.

50

50

49

49

49

49

49

49

49

48

48

48

48

48

46

45

45

43

43

43

43

43

43

43

43

43

43

43

44

43

-

^eau discharge.- Dec. 3 (6 a.m./ 4.280 sec. -ft.: Dec. 16 (1 p.m.) 4.280 sec. -ft.: Jan. 27 (11 ajn.)

7,460 sec. -ft.; Feb. 6 (9 a.m.) 5,880 sec. -ft.

c Stage-discharge relation affected by dam on control; discharge interpolated. 

Note.- No gage-height record Au"-. 31 to Sept. 12. 1942: discharge interuolated.

1. onthly discharge, in second-feet, 1941-42

Month

April. ......................................

May.........................................

July.. ......................................

September. ..................................

Calendar year 1941 .......................

April. ......................................

May .........................................

September. ..................................

Water year 1941-42 .......................

Secondfoot-days

21,113

12,377

3,028

1,259

-

-

29, 179

35,606

26,301

4,191

1,819

1,379

194,168

Maximum

1,300

880

53

_

_

4,500

1,790

2,730

1,540

240

76

50

5,190

Minimum

70

37

.

-

323

394

674

245

76

50

43

36

Mean

42.0

_

_

1,049

1,149

58.7

46.0

532

Runoff In 

acre-feet

2,500

190,000

.

58,250

70,620

8,310

3,610

2,740

385,100

standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

standard time, subtract 1 hour.
FEATHER RIVER BASIN oOo

Yuba River at Narrows Dam, Calif.

Location.- Water-stage recorder above spillway of Narrows Dan, lat. 39°14', long. 121°16', 

near center of sec. 14, T. 16 IJ., R. 6 E., one nile upstream from Deer Creek and 2& 

miles northeast of Sr.iartville. Datum of rage is 526.9 feet above mean sea level 

(levels by Corps of Engineers, U. S. Amy).

Drainage area.- 1,110 square miles.

Records available.- October 1941 to September 1942.

Extremes.- Maximum discharge during year, 48,700 second-rent Feb. 6 (gage height, 9.17 

feet); no flow IIov. 8 to Dec. 2, water being stored at dam.

Remarks.- Records good for February to September, fair for October to January. Diversions 

 for power and irrigation above station. Storage above station at Lake Spaulding 

(capacity, 70,500 acre-feet), Upper Harrows reservoir (capacity, 70,000 acre-feet), 

Bowman Lake (p. 313), Fordyce Lake (capacity, 42,000 acre-feet), and many smaller 

reservoirs.

Rating table, water year 1941-42 for flow over spillway only (gage height, in feet, 

and discharge, in second-feet)

0

50

120

200

300

440

610

800

0.8 

1.0 

1.2 

1.4 

1.8 

2.2 

2.6

1,010

1,460

1,950

2,470

3,670

4,980

6,420

8,080

3.5 

4

10,360

12,800

18,200

24,200

31,100

39,600

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

424

401

367

383

373

369

364

362

361

358

353

344

336

337

333

329

329

324

325

322

320

318

304

261

295

303

326

330

332

330

332

Nov.

329

337

372

182

11

6

3

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Dec.

0

0

4,580

4,750

2,310

1.630

1,290

1,120

989

989

947

2,230

3,400

1,700

5,970

24,700

13,000

8,260

7,730

7,110

6,010

4,560

4,100

3,580

3,400

3,400

3,400

3,400

4,370

4,080

3,490

Jan.

3,400

3,400

3,400

3.400

3,400

3,400

3,400

3,400

4,040

4,720

4,220

3,920

3,700

3,520

3,400

3,400

3,400

3,400

3,400

3,400

3,400

3,400

3,400

1,840

19,800

22.400

33,700

21,700

13,000

9,760

7,730

Feb.

6,560

8,300

10,900

14,500

16.900

39,200

22,800

14,400

11,100

8,840

7,390

6,380

5,720

5,220

4,840

4,510

4,210

3,990

3,770

3,610

3,670

3,770

3,270

3,390

3,240

2,990

2,900

2,810

-

-

-

Month

October. ...... ...........................

Novembe r . ...... .........................

December. ... ........................ ....

Calendar year ........... ........

January ..................................

February. ...... ............ . . . . . .....

March. ...... ........ .... . ... ........

April .......... ................ ... .

May . . ...... . ... ........... .....

June. .......... ........ ................

July. ......... ...... . . ................

August. ....... . .... . . . ... . ......

September. . . .... ... . . ... ... ..... .

Water year 1941-42 ... ... ..........

Mar.

2,690

2,690

2,670

2,640

2,690

2,780

2,750

2,720

2,810

2,930

4,090

5,290

5,050

4,810

4,380

3,930

3,610

 3,520

3,390

3,200

3.080

3,020

2,990

3,020

2.900

2,720

2,690

2,580

2,580

2,640

2,810

Apr.

3,080

3,110

4,680

13,200

13,800

10,500

7,990

6,940

6,660

6,860

7,180

7,560

9,030

11,900

9,210

8,570

8,040

6,900

6,580

6,660

6,620

7,180

7,350

6,580

6,340

6,120

6,500

6,420

5,460

5,360

-

forays

10,567

1,240

136,495

_

211,850

229,200

99,670

222,380

237,190

160,510

42,416

17,021

12,671

1,401,210

May

6,460

5,540

5,220

5,180

5,080

5,150

5,570

6,340

7,020

6,460

6,270

5,750

5,180

5,180

6,150

6,620

6,060

6,120

6,460

7,470

9,760

11,300

10,900

10,100

14,400

16,800

11,800

9,850

8,480

7,560

6,940

Maximum

424

372

24,700

_

33,700

39,200

5,290

13,800

16,800

9,580

2,810

666

457

39,200

June

6,940

7,430

7,140

7,770

8,800

9,580

8,660

7,860

7,640

8,300

7,950

7,140

6,580

6,820

7,220

6,700

6,080

5,150

5,360

4,570

4,510

4,440

4,410

4,050

3,860

3,520

3,360

3,080

2,870

2,720

-

Minimum

261

0

0

.

1,840

2,810

2,580

3,080

5,080

2,720

705

440

356

0

July

2,780

2,810

2,610

2,500

2,180

2,180

1,950

1,750

1,600

1,440

1,360

1,290

1,240

1,200

1,180

1,140

1,090

1,050

1,050

1,010

968

947

926

884

842

762

743

762

743

724

705

Aug.

686

648

648

648

629

629

629

629

629

629

610

610

576

559

559

542

542

525

506

506

491

491

474

474

457

457

457

440

457

440

440

Mean

341

41.3

4,403

_

6,834

8,186

3,215

7,413

7,651

6,017

1,368

549

422

3,839

Sept.

440

440

440

440

440

440

440

440

457

440

440

440

440

440

426

426

426

398

398

412

398

356

370

412

412

412

412

412

412

412

-

Runoff in 

acre-feet

20,960

2,460

270,700

_

420,200

454,600

197,700

441,100

470,500

358,000

84,130

33,760

25,130

2,779,000

Note.- Dally discharge for October and November is computed as difference in flow between Yuba 

River at Smartvllle (unpublished) and Deer Creek near Smartville; that for December to September is 

sum of spill over dam and release through dam.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
FEATHER RIVER BASIN 307

Yuba River at Marysvilia, Calif.

Location.- Water-stage recorder, lat. 39°08'40", long. 121 034'35", at Slmpson Lane Bridge 

in Marysville, Yuba County, about 2 miles upstream from mouth. Zero of gage is set to 

datum of Corps of Engineers, U. S. Army.

Records available.- October 1940 to September 1942 (low-water periods only) in reports of 

Geological Survey. 1939-42 (low-water periods only) in reports of Division of Water 

Resources, Department of Public Works, State of California.

Extremes.- Minimum discharge recorded during year, 64 second-feet Nov. 28, 29 (gage height, 

1940-42: Minimum discharge recorded, that of Nov. 28, 29, 1941.

Remarks.- Records good. Storage and 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.

Rating tables for periods Oct. 1 to Nov. 30, 1941, and July 1 to Sept. 30, 

(gage height, in feet, and discharge, in second-feet)

Oct. 1 to Nov. 30, 1941

49.0 62

49.1 74

49.2 38

49.4 125

49.6 174

49.8 234

50.0 310

50.3 441

July to Sept. 30, 1942

49.2

49.4

49.6

49.9

50.2

220

295

380

535

730

50.5

51.0

51.5

52.0

52.7

940

1,310

1,700

2,140

2,770

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

310

286

278

270

266

263

259

266

263

259

259

256

248

245

231

228

228

228

224

221

221

228

231

218

208

228

294

294

286

282

278

Nov.

294

378

405

432

194

146

143

123

111

105

100

96

93

88

90

88

85

84

82

78

74

72

70

69

67

66

66

66

68

66

-

Dec. Jan.

Month

Feb.

October. ...................................

November. ..................................

December ...................................

Calendar year ......................

January ....................................

February ...................................

March. .....................................

April.. ....................................

Unv May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year ......................

Mar. Apr.

Secondfoot-days

7,856

3,899

_

_

_

_

_

_

36,982

10,628

7,137

-

May

Maximum

310

432

_

_

_

_

_

^

2,700

467

252

-

June

Minimum

208

66

_

_

_

_

_

_

_

487

241

220

-

July

2,590

2,700

2,560

2,410

2,180

2,020

1,870

1,640

1,500

1,330

1,200

1,130

1,070

1,010

947

884

870

849

814

800

758

724

704

672

632

587

535

517

505

487

487

Aug.

487

481

455

440

435

412

398

394

394

394

389

389

380

358

344

344

335

319

307

299

295

279

275

267

263

255

255

252

248

244

241

Mean

253

130

_

_

_

_

_

_

1,193

343

238

-

Sept.

241

238

241

238

244

244

236

234

234

238

238

241

244

238

238

238

241

238

234

234

241

252

238

220

220

234

238

238

238

244

~

Runoff in 

acre- feet

15,580

t7, 734

_

 .

__

_

_

_

73,350

21,080

14,160

-

Time baalat Pacific atandard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, aubtract 1 hour.
308 FEATHER RIVER BASIN 

Milton-Bowman Tunnel at outlet, Calif.

Location.- Water-stage recorder and concrete control, lat. 39°28', long. 120°37', In 

sec. 3, T. 18 N., R. 12 E., near upper end.of Bowman Lake. Altitude of gage, about 

5,600 feet (from topographic map).

Records available.- May 1928 to September 1930, October 1931 to September 1942. 

Average discharge.- 13 years, 69.5 second-feet.

Extremes.- Maximum dally discharge during year, 411 second-feet Dec. 16; minimum dally, 

1.6 second-feet Sept. 24-29.

1928-30; 1931-42: Maximum dally discharge, 492 second-feet Feb. 11, 1941; minimum 

dally, 1.3 second-feet Sept. 28, 29, 1937 and Sept. 24, 1939.

Remarks.- Ttecords fair. Tunnel diverts water from Middle Fork of Yuba River at Milton, 

 in sec. 12, T. 19 N., R. 12 E., and discharges It into Bowman Lake, from which It Is

conveyed to Lake Spauldlng. During low and medium stages practically entire flow of

Middle Fork of Yuba River Is diverted.

Cooperation.- Water-stage recorder graph and results of several discharge measurements 

rumisned by Nevada-Irrigation District.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

5

5

t 4.7

4.7

4.7

5

5.5

5.5

5.5

5.5

5.5

5

5

5

4.7

4.7

4.4

4.4

4.4

4.4

16

16

8.5

7

6

6

7

8

7.5

7

6.5

Nov.

8

35

31

23

16

13

11

9.5

9

8.5

8

8

7.5

8

7.5

14

16

13

11

9.5

9.5

9

9

8.5

8.5

a8.5

a8.5

a8.5

alO

a20

-

Dec.

a!5

a!40

147

140

122

96

70

56

48

43

38

33

33

34

141

411

296

205

214

211

153

126

114

102

92

87

75

68

73

70

67

Jan.

60

57

58

56

55

56

90

214

144

116

10S

a!02

96

90

87

S4

77

74

72

69

67

67

63

77

170

316

346

337

276

197

163

Feb.

144

140

129

116

116

133

119

109

103

98

91

85

81

77

74

72

69

69

67

64

64

62

56

60

55

55

55

53

-

-

~

Month

October. ..................... .............

November ...................................

December . ..................................

Calendar year 1941 ......................

January ....................................

February. ..................................

March. .....................................

April. .....................................

May.... ....................................

June .......................................

July. ......................................

August .....................................

September. ............ ....................

Water year 1941-42 ......................

Mar.

53

57

55

54

62

69

66

74

81

82

87

SS

78

74

72

68

67

72

66

64

6S

72

73

72

66

64

64

67

74

82

100

Apr.

1O6

128

199

30S

239

192

192

220

254

312

325

280

321

316

300

300

239

197

223

264

272

264

268

268

261

250

257

261

226

205

-

Secondfoot-days

194.1

366.5

3,520

35,632.7

3,844

2,416

2,191

7,447

5,703

4,313

2,015

243.5

124.5

32,377.6

May

179

172

179

179

202

254

272

304

308

300

308

250

239

246

250

232

254

346

350

236

63

64

61

63

69

62

56

53

51

50

51

Maximum

16

35

411

492

346

144

100

325

350

276

205

12

6

411

June

54

56

56

59

61

60

59 ' 58

60

59

56

54

54

54

71

276

243

239

236

236

232

229

226

223

223

220

220

217

214

208

-

Minimum

4.4

7.5

15

4.4

55

53

53

106

50

54

12

6

1.6

1.6

July

205

205

197

170

146

126

113

97

87

50

14

a30

47

47

46

45

42

40

37

36

33

29

32

30

12

22

19

16

15

14

13

Aug.

12

12

11

11

10

9.5

9.5

9

9

8.5

8.5

8

8

8

8

7.5

7.5

7

7

6.5

6

6

6

6

6

6

6

6

6

6

6

Mean

6.26

12.2

114

97.6

124

86.3

70.7

248

184

144

65.0

7.85

4.15

S8.7

Sept.

6

6

6

5.5

5.5

5.5

5.5

5.5

5

5

5

5

5

5

5

f.

^

5

5

5

4.0

1.8

1.8

1.6

1.6

1.6

1.6

1.6

1.6

1.8

-

Runoff in 

acre- feet

385

727

6,980

70,670

7,620

4,790

4,350

14,770

11,310

8,550

4,000

483

247

64,210

SL Ho gage-height record; discharge computed on basis of records for Middle Pork of Yuba River 

above Oregon Creek.

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
FEATHER RIVER BASIN 309

Oregon Creek near North San Juan, Calif.

Location.- Water-stage recorder, lat. 39°24', long. 121°05', in SWi sec. 22, T. 18 N., R. 

 UK., 1 mile upstream from mouth and 3 miles northeast of North San Juan. Altitude 

of gage, about 1,500 feet (from topographic map).

Drainage area.- 35.1 square miles.

Records available.- October 1933 to September 1942. 

site o.v mile downstream.

October 1910 to September 1933, at

Average discharge.- 31 years (1911-42), 74.9 second-feet.

Extremes. Maximum discharge during year, 2,120 second-feet Feb. 6 (gage height, 8.38 

 feet); minimum, 4.6 second-feet Oct. 2-4, Sept. 20 (gage height, 1.66 feet).

1910-42: Maximum discharge observed, about 4,000 second-feet Mar. 25, 1928 (gage 

height, 9.5 feet, site and datum then in use), from rating curve extended above 600 

second-feet; minimum discharge, 0.7 second-foot several days in July and August 1931 

and September 1934.

Remarks.- Records good. Small diversions above station for irrigation and mining.

Rating table, water year 1941-42 (gage height, In feet, and discharge. 

In second-feet)

1.6

1.7

1.8

1.9

2.0 

2.2 

2.4 

2.6

3.2

5.5

8.5

12

15.5

23.5

31.5

41

2.8 

3.0 

3.3 

3.6 

4.0 

4.4 

4.8 

5.2

52

67

94

128

185

254

342

449

5.6 

6.0 

6.5 

7.0 

7.5 

7.9

580

730

960

1,220

1,520

1,780

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

5.5

4.8

4.8

4.8

4.8

4.8

5

5

5.5

5.5

5.5

5.5

6

6

6

6

6

5.5

6

6.5

6.5

6.5

6.5

6.5

6.5

7.5

12

11

8

6.5

6.5

Nov.

16

50

33

23

15

12

1O

8.5

8

e

7.5

7.5

7.5

7

7.5

17

13

11

9.5

8.5

e

8

8

7.5

8

7.5

7.5

7.5

16

30

-

Dec.

18

190

408

92

53

40

32

28

25

28

24

21

23

172

449

762

370

352

292

252

207

161

154

123

106

89

93

180

190

164

127

Jim.

100

84

75

67

fil

56

294

424

272

217

193

178

164

155

145

148

136

123

110

101

92

134

245

417

895

990

1,430

651

556

393

3O9

Feb.

262

367

508

784

1,040

1,770

1,080

702

508

388

309

26O

226

199

178

160

145

133

123

115

117

112

101

102

93

88

84

80

.

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January. ...................................

February ...................................

 arch.............. ........................

April ......................................

Ito......................... ...............

June .......................................

July.... ...................................

August. ....................................

September. .................................

Rater year 1941-42 ......................

Mar.

79

79

79

78

80

81

79

75

75

80

165

278

231

201

173

156

149

147

140

189

121

115

109

108

101

94

89

65

82

80

83

Apr.

90

88

199

485

650

473

342

276

243

230

217

204

226

320

283

272

256

239

Z31

Z17

201

191

179

164

152

144

164

164

145

170

-

Secondfoot-days

193.5

387.5

5,225

41,006.3

9,413

10,034

3,621

7,215

6,087

2,040

567

257.5

173.3

45.213.8

May

250

201

182

173

161

154

151

151

148

138

155

142

137

142

231

237

204

182

166

158

152

145

134

123

403

424

309

289

243

214

188

Maximum

12

50

762

1,170

1,430

1,770

0*7Q tf£/O

650

424

1fi*7 J.O I

29

11

7

1,770

June

167

152

138

126

115

1O6

97

89

62

77

73

66

61

58

54

51

48

46

44

42

40

39

38

37

36

35

33

31

30

29

-

MiniBUB

4.8

7

1 Q J.O

4.6

Cfi OO

80

ye

88

123

29

12

6.5

4.8

4.8

July

29

27

26

25

24

23

22

21

21

21

2O

20

20

19

18

16

18

17

17

17

16

15

14

13

13

13

12

12

12

12

12

Aug.

11

11

10

10

9.5

10

10

10

9

8.5

9

8.5

8.5

6.5

8

8

8

8

7.5

7.5

7.5

7

7

7

7

7

7

7.5

7

6.5

6.5

Mean

6.24

12* 9

169

112

304

358

117

240

196

68. 0

18.3

8.31

5.78

124

Sept.

6

6

6.5

6

6

6

6

6.5

6.5

7

6.5

6

6

6

6

5.5

5.5

5.5

5.5

4.8

5

5.5

5

5

5.5

5.5

5.5

5.5

5.5

5.5

-

Runoff in 

acre-feet

384

769

10,360

81, 340

18,670

19.900

7, ISO

14,310

12, O70

4,050

1,120

511

344

89,670

Peat discharge.- Dec. 3 (2 a.m.) 730 sec.-ft.; Dec. 16 (2 a.m.) 91O sec.-ft.; Jan. 27 (8 a.m.) 

1,930 sec.-rt.; Feb. 6 (8:30 a.m.) 2.12O sec.-ft»; Apr. 5 (8 a.m.) 750 sec.-ft.; May 25 (5 p.m.) 

660 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
310 FEATHER RIVER BASIN

North Fork of Yuba River near Sierra City, Calif.

Location.- Watt.-stage recorder, lat. 39°34'. long. 120°40', in NWi sec. 32, T. 20 N., R. 

12 E., IE miles west of Sierra City and 2i miles downstream from South Fork of North 

Fork. Altitude of gage, about 4,100 feet (from topographic map).

Drainage area.- 91.3 square miles.

Records available.- 1911-13 (fragmentary), Decemoer 1923 to September 1942.

Average discharge.- 18 years (1924-42), 226 second-feet.

Extremes.- Maximum discharge during year, 2,300 second-feet Dec. 3 (gage height, 4.65 

feet); minimum, 44 second-feet Oct. 3.

1923-42: Maximum discharge, 9,800 second-feet Dec. 11, 1937 (gage height, 10.0 

feet), from rating curve extended above 2,500 second-feet; minimum, 26 second-feet Oct. 

15, 1931, Aug. 22, 23, 1934.

Remarks.- Records good except those for high-water period in May and June, which are fair. 

Small diversions above station for mining.

Rating table, water year 1941-42 (gage height, In feet, and discharge, 

In second-feet)

1.0 

1.2 

1.4

44

64

84

125

168

1.6 

1.9 

2.2 

2.5 

2.8

213

296

400

520

660

3.1 

3.5 

3.9 

4.3

830

1,090

1,450

1,880

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

50

48

46

46

48

48

50

50

50

50

50

52

58

56

54

54

54

54

56

60

78

76

66

62

62

62

88

78

74

68

66

Nov.

117

228

153

119

94

84

78

7266'

66

64

62

62

62

62

125

88

68

66

64

62

64

58

60

62

60

58

60

88

131

-

Dec.

90

740

1,090

316

223

188

166

153

146

140

133

129

133

164

696

1,350

625

538

560

534

400

348

323

284

246

241

226

228

218

204

197

Jan.

186

181

179

172

170

168

352

424

334

299

287

278

263

255

252

241

226

216

208

206

202

206

216

312

625

926

1,480

872

630

524

452

Feb.

408

432

404

390

432

610

488

400

354

327

303

284

272

258

246

238

230

223

216

211

208

204

195

192

188

183

181

177

-

-

-

Mar.

177

181

179

183

199

208

202

218

236

244

266

272

258

244

230

220

218

223

£.13

208

213

220

223

218

208

204

204

206

220

238

269

Apr.

284

323

537

645

520

476

472

508

574

610

625

685

818

722

620

606

542

492

524

570

583

670

645

620

630

610

606

552

500

484

-

May

456

436

452

448

476

556

680

776

782

670

615

578

552

552

560

534

583

645

776

1,020

1,220

1,350

1,240

1,330

1,590

1,230

978

884

794

740

752

June

836

872

902

1,060

1,200

1,160

1,090

1,110

1,200

1,150

1,100

1,060

1,040

1,090

1,110

1,030

950

932

872

794

746

728

722

695

650

615

606

578

565

565

-

July

565

552

524

504

464

424

393

358

334

313

293

269

252

238

230

223

211

208

199

190

179

172

161

153

146

140

133

127

123

121

117

Aug.

112

110

108

104

102

100

98

96

94

92

92

92

90

90

90

88

86

84

82

82

80

80

78

78

76

76

78

78

82

80

78

Sept.

76

76

74

72

72

70

70

70

76

78

72

70

68

66

64

62

62

60

60

58

58

58

56

56

56

56

56

58

58

56

-

Month

December ...................................

March. .....................................

April. .....................................

July. ......................................

Water year 1941-42 ......................

Secondfoot-days

11,029

123,118

Maximum

1,350

1,790

272

818

78

1,590

Minimum

90

46

Mean

356

295

219

90S

337

Runoff in 

acre-feet

21,880

22 500

13 490

244,200

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war tin 

To convert war time to standard time, subtract 1 hour.

thereafter.
FEATHER RIVER BASIN 311

North Fork of Yuba River below Goodyears Bar, Calif.

Location.- Water-stage recorder, lat. 39°32', long. 120°56', In SWi sec. 11, T. 19 N., R. 

9 E., 3-1 miles downstream from Goodyears Creek and about 4 miles southwest of Goodyears 

Bar. Altitude of gage, about 2,450 feet (from topographic map).

Drainage area.- 244 square miles.

Records available.- December 1930 to November 1937, December 1938 to September 1942.

Extremes.- Maximum discharge during year, 10,400 second-feet Jan. 27 (gage height, 12.75 

feet); minimum,'' 147 second-feet Oct. 18.

1930-42: Maximum discharge, 26,000 second-feet Dec. 11, 1937 (gage height, 19.0 

feet, from floodmarks), from rating curve extended above 6,000 second-feet on basis of 

drift-velocity measurement at 18,000 second-feet; minimum, 69 second-feet Aug. 26, 1931.

Remarks.- Records excellent. Several small diversions above station for Irrigation and

mining.

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

2.1 

2.4

3.0

142

168

215

336

460

4.0 

4.5 

5.0 

6.0 

7.0

610

808

1,040

1,650

2,450

8.0

9.0

10

3,450

4,600

5,900

7,360

9,000

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

154

152

152

152

153

154

155

155

155

154

153

157

165

158

154

153

152

149

150

154

164

180

158

155

158

158

222

201

177

168

164

Nov.

210

588

408

322

239

210

195

186

182

176

172

170

167

165

164

286

237

194

182

176

170

171

165

165

164

164

164

162

208

406

-

Dec.

252

2,320

4,040

1,030

671

540

457

408

382

372

336

324

374

924

3,430

5,730

2,420

1,850

1,860

1,820

1,400

1,160

1,080

930

843

768

735

756

777

773

706

Jan.

624

588

568

540

519

510

1,300

,850

,330

,150

,090

,040

997

949

916

884

821

773

726

696

674

782

1,040

1,900

3,890

4,610

7,640

4,200

2,790

2,160

1,830

Feb.

1,660

2,080

2,220

2,360

3.070

6.030

3,660

2,580

2,060

1,760

1,550

1,390

1,280

1,180

1,100

1,040

978

935

893

857

866

826

777

768

730

710

690

671

_

-

-

Mar.

659

667

659

663

706

739

706

739

786

821

1,030

1,240

1,120

1,020

935

8S9

870

875

839

808

804

808

795

786

743

718

710

710

735

768

852

Apr.

880

954

1,970

2,890

2,370

1,990

1,790

1,760

1,820

2,000

2,040

2,230

2,680

2,640

2,210

2,120

1,880

1,730

1,760

1,650

1,880

2,180

2,090

1,880

1,940

1,830'

1,880

1,670

1,500

1,520

-

May

1,540

1,450

1,450

1,450

1,480

1,660

1,940

2,200

2,240

1,930

,790

,600

,510

,530

,710

,640

,680

1,800

2,130

2,730

3,240

3,490

3,170

3,270

4,610

3,810

3,010

2,700

2,420

2,220

' 2, 160

June

2,300

2,390

2,390

2,680

3,000

2,950

2,710

2,670

2,870

2,760

2,580

2,470

2,450

2,530

2,570

2,400

2,210

2,140

2,020

1,860

1,740

1,690

1,680

1,630

1,520

1,380

1,350

1,270

1,230

1,210

-

July

1,190

1,160

1,110

1,060

982

912

852

790

747

710

682

644

613

591

568

552

534

519

505

482

466

450

434

418

406

394

384

372

367

360

353

Aug.

346

341

334

324

318

313

305

300

294

290

288

286

280

276

272

268

260

252

252

246

244

242

239

233

233

233

233

233

237

233

224

Sept.

222

219

219

215

215

212

206

205

219

222

210

203

198

195

192

186

188

180

182

182

180

178

176

176

174

176

174

176

177

174

-

Month

March ......................................

April. ................................... .

May. .......................................

July. ......................................

September. .................................

Water year 1941-42 ......................

Secondfoot-days

6,570

44,721

25,200

57,934

69,560

64,650

19, 607

8,429

5,633

396,365

Maximum

588

6,030

1,240

4,610

3,000

1,190

346

222

7,640

Minimum

671

659

1,450

1,210

353

224

174

149

Mean

1;597

, 813

2»g44

2,155

632

272

194

it 066

Runoff in 

acre feet

9,890

13,030

49,980

138,000

128,200

38,890

16,720

11,570

786,200

Peak discharge.- Dec. 3 (1 a.m.) 7,210 sec.-ft.; Dec. 16 (7 a.m.) 7,760 sec.-ft.;.Jan. 27 (9 a.m.) 

10,400 sec.-ft.; Feb. 6 (7 a.m.) 7,650 sec.-ft.; May 25 (3 p.jn.) 6,110 sec.-ft.

Time basis: Pacific standard time prior to 2 a.m., Feb.-9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
312 FEATHER RIVER BASIN 

South Fork of Yuba River at Jones Bar, Calif.

Location.- Water-stage recorder, lat. 39°18', long. 121°07', near center of west side 

of sec. 32, T. 17 N., R. 8 E., at Jones Bar bridge, 850 feet upstream from Rush Creek 

and 5 nlles northwest of Nevada City. Altltiide of gage, about 1,050 feet (from 

topographic sap). 

Drainage area.- 340 square miles. 

Records available.- October 1940 to September 1942.

Extremes.- Ilaxlmum. discharge during year, 16,000 second-feet Jan. 27 (gage height, about 

17.3 feet); minimum, 12 second-feet Oct. 4 and Sept. 26.

1940-42: Maximum discharge, that of Jan. 27, 1942; minimum, 1C second-feet Oct.2, 

1S40.

Remarks.- Records good except those for periods of doubtful or no gage-height record, 

which are fair. Flow regulated by storage and diversions above station for power 

and Irrigation.

Rating tables, water year 1941-42 (gftge height, in feet, and discharge, in second-feet) 

Oct. 1 to June 24 July 20 to Sept. 30

1.6 10 3.0 135 6.0 1,080

1.7 13.5 3.4 214 7.0 1,640

1.9 25 3.8 306 8.0 2,370

2.1 34 4.2 416 9.0 3,300

2.2 41 4.6 545 10.0 4,470

2.4 60 5.0 685 12.0 7,280

2.7 94 5.5 S70 IS. 5 9,600

1.7 10 2.4 57

1.9 18 2.6 68

2.1 31 2.8 104

2.2 38 2.9 119

Note.- Same as preced_

ing table above 2.9 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

OQCO

29

 Tft

ou

31

Oct.

26

17

13

13

14

15

15

16

17

17

17

17

22

24

22

20

18

18

19

20

22

28

27

28

SO

SS

56

78

55

47

46

Nov.

61

S12

191

122

87

76

63

59

57

56

54

54

53

53

5S

82

94

7S

66

61

56

57

55

58

61

61

61

62

81

114

-

Dec.

90

432

1,780

517

263

210

187

167

155

171

151

146

171

867

1,840

4,630

3.G6O

1,680

1,460

1,400

1,040

741

671

517

416

372

497

1,080

898

780

580

Jan.

468

443

578

342

322

3C6

756

1,240

822

790

752

727

671

598

528

488

431

378

353

514

500

900

1,500

a, 500

4,000

5,000

9,600

5,OOO

2,680

1,800

1,390

Feb.

1,180

1,760

2,150

3,070

3,670

7,580

4,400

2,760

1,990

1,620

1,390

1,260

1,140

1.O6O

994

958

914

882

646

818

846

830

780

786

755

754

713

702

_

_

-

Month

October. ...................................

November ...................................

December ...................................

Calendar year 1941 ......................

January ....................................

February ...................................

March. .....................................

April.. ....................................

May. .......................................

June .......................................

July.... ...................................

August. ....................................

September ..................................

Water year 1941-48 ......................

Mar.

670

660

650

650

650

650

629

622

629

656

922

1,040

914

894

838

720

7OO

670

656

598

5S7

576

567

656

584

542

554

481

484

481

504

Apr.

:

£

531

517

,070

,100

2,500

1,740

]

]

]

,350

,190

,160

1,260

1.560

1

f£

f!

,970

,540

,200

2,350

2,150

]

]

1

,980

,640

,510

1,540

1,580

1

1

1

,800

,920

,700

1,590

1,570

1

1

]

1

Seccndfoot-days

810

2,395

26,349

270,420

46 , 386 

20,374

49 708

61^410

52,8»0

5 *827 944

499

314,071

,650

,550

,270

,240

-

May

1,400

1,160

1,120

1,130

1,160

1,170

1,170

1,470

1,740

1,580

1,520

D ,310

1,200

1,270

1,660

1,680

1,530

1,700

1,770

1,920

2,600

3,280

3,400

3,000

4,470

4,990

3,140

2,430

2,040

1,770

1,630

Maximum

78

312

4,630

C ( QQ ** r j- av

9,600

7 ,380

1,040

3,200 

4,990

3 ,180

30Q 

41

23

9,600

June

1,620

1,800

1,670

2,210

2,740

5,180

2,790

2,310

2,190

2,650

2,660

2,100

1,900

2,070

a, 350

2,190

1,880

1.S10

1,530

1,120

1,400

1,410

1,440

1,170

1,000

1,000

900

750

750

600

-

Minima

13

53

9C

11

306

702

481

511

1 1 12C

60C

40

16

13

13

July

800

800

700

550

450

450

350

250

150

100

90

85

80

80

80

80

75

75

70

68

66

64

58

57

52

50

45

42

40

44

43

Aug.

Mean

26.1

79.6

866

741

1 , 483

1 ,657 

657

1 ,657

1,981 

1,763

192

26.7

16*6

860

58

41

37

57

55

34

31

30

30

28

28

32

33

52

29

27

24

25

23

23

22

20

19

18

19

IS

19

19

20

20

18

Sept.

IS

19

19

19

19

19

18

18

20

&

23

19

18

18

18

17

16

15

14

14

14

14

14

13

13

13

13

13

14

15

Runoff in 

acre feet

1,610

4,750

53,250

536,400

92^010

40,410

98,590

121 f 800

104,900

11,790 

1 64O

990

682,900

f Discharge computed on basis of partly estimated gage - height record.

Note.- Doubtful or no gage-height record Jan. 21-28 Mar. 1-6,16-18, June 25 to July 19; discharge 

computed on basis of recorded range of stape and unpublished records for station at 'Washington and 

published records for Deer Creek nesr Smartville.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific »ar time thereafter. 

To convert war time to standard time, subtract 1 hour.
FEATHER RIVER BASIN

owman Lake near Granltevllle, Calif.

Location.- Staff gage, lat. 39°27', long. 120°39', in SWi sec. 5, T. 18 N., R. 12 E. f at 

Bowman Dam on Canyon Creek, 4 miles east of Granltevllle. Datum of gage Is 5,000.0 

feet above mean sea level (levels by Ilevada Irrigation District); gage readings have 

been reduced to elevations above mean sea level.

Drainage area.- 30 square miles.

Records available.- December 1926 to September 1942.

Extremes.- Maximum contents during year, 70,300 acre-feet July 1 (elevation, 5,565.6 

feet); ninimum, 22,000 acre-feet Dec. 2 (elevation, 5,496.3 feet).

1926-42: Maximum contents, 70,500 acre-feet June 16, 17, 1937 (elevation, 

5,565.9 feet); contents less than 1,000 acre-feet and therefore doubtful, at times 

during 1926, 1928-31, 1933-35, 1937, 1939.

Remarks.- Lake Is formed by one rock-fill and one concrete-arch dam; completed and storage 

began In November 1926. Usable capacity, 68,200 acre-feet between elevations 5,400 

feet (bottom of outlet tunnel) and 5,563 feet (crest of concrete arch dam) above mean 

sea level. Flashboards are occasionally added, Increasing elevation to 5,564.5 feet 

and capacity to 69,400 acre-feet. Lake receives water from Middle Fork of Yuba 

River through Milton-Bowman tunnel (p.308), and releases It through Bowinan-Spauldlng 

Canal (p. 315) which conveys It to reservoirs of Pacific Gas & Electric Co. Water Is 

eventually used for Irrigation by Nevada Irrigation District. Record of daily contents, 

computed from gage readings made at odd times, shows total contents, all of which is 

available for release.

Cooperation.- Record of daily gage heights furnished by Nevada Irrigation District.

Contents, in acre-feet, water year October 1941 to September 1942

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

Oct.

36.500

35,600 

35,300

34 , 400 

33,900

33,500 

33,000

32,300 

31,700

30,800 

30,800 

30,800 

30,800

_

_

30,800

30,800

30,800

30,800

30,600

_

30,300

Nov.

30,600 

30,800

30,600

-

29,900 

29,400 

28,900

28,600 

28,000 

27,700 

27,400 

27,200

26 , 900 

26,300

25,300

24,700

24,100

23,600

23,200

22,900

22,600

22,400

-

Dec.

22,000 

23,600 

24,200

24,300

24 , 200 

24,200

24,200 

24,200

23,500 

23,200 

22,900 

23,000 

23,400

28,700 

28 , 700 

29,300 

30,000 

30,800

31,200

31,400

31,600

31,800

-

31,700

-

_

_

31,600

31,600

Jan.

31,600 

31,500

31,200

31,100 

31,200

31,600 

31 , 900 

32,100

32,200 

32,300 

32,300 

32,300 

32,300

32,300 

32,300 

32,300 

32,300 

32,200

_

_

_

32,000

32,800

34,OOO

36,400

37,900

39,200

40,000

40,600

Feb.

40,800

-

42,800

42,800 

42,800

42,800 

42,800 

42,100

40,400 

40,000 

39,300

_

_

38,100

_

-

36,600

36 , 400

36,000

_

-

-

Mar.

34,800

33,700

33,000

32,500 

32,300

31,800 

31,400

30 , 200

29,900 

29,600

29,200

_

28,800

_

28,400

28,300

28,200

28,100

28,100

.

28, BV,

28,300

Apr.

28,300

28,400 

28,900 

30,100

30,800

31,200 

31,400

31 , 400 

32,000

33,200 

34,400 

36,100

36,800 

 37,100 

37,300 

37,800

38,200

38,500

-

-

42,100

_

-

43,500

44,000

-

-

May

44,600

44,600 

44,900

-

: 46 , 800 

47,700

49,700 

49,800

50,600

51,900 

52,800 

54,000

55,100

56,100

56,800

-

58 , 100

59,700

-

59,700

-

-

58,800

June

58,800

59,400 

59,800 

60,400

61,200

62,200

64,100 

64,900

65,600

66,600 

67,400 

68,300

69,500 

69,800 

69,800 

69,800 

69,600

69 , 500

-

69,500

69,800

69,800

69,800

70,000

70,100

70,100

70,100

-

July

70,300

70,100 

70,100 

70,100

70,100

70,100 

70,100

69,800 

«9, 800 

69,700

69 , 400 

69,000 

68,800 

68,500 

68,200

68,000 

67,700 

67,400 

67,100 

66,800

66,500

-

65,900

-

65,200

64,800

-

64,200

63,900

-

63,400

Aug.

63,200

62,800 

62,600

-

61,900

61,3OO 

61,200

61,000

60,500 

60,300

59 , 400 

59 , 200 

58,900

58,800

58,400

58,200

58,000

-

57,400

57,200

-

56,600

56,300

-

Sept.

55,800M .

llfioo

54?800

54,500

53,800

53,200

52,500 

52,200 

51,900 

51 , 500 

51 , 200

50,800 

50,400

49,700

-

48,700

-

-

47,700

-

46,900

-

-

45,500

-

Monthly elevation and contents, water year October 1941 to September 1942

Date

Dec. 31 ..................

Calendar year 1941......

Sept. 30 ..................

Water-year 1941-42.

Elevation 

(feet)

5,512.6

_

5,533.9

-

Contents 

(acre-feet)

31,600

_

45,500

-

Change in contents 

during month 

(acre-feet)

+ 9,200

+10,400

-10,800

+7,200

530350 O - 43 - 21

Time ba_sjls: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

ir time thereafter. To convert war time to standard time, subtract 1 hour.
314 FEATHER RIVER BASIN

Canyon Creek below Bowman Lake, Calif.

Location.- Water-stage recorder and concrete control, lat. 39°26', long. 120°40 f , in 

SEt sec. 7, T. 18 N.. R. 12 E., 1 mile downstream from Bowman Lake and 3 miles upstream from Texas creelc. Altitude of gage, about 5,100 feet (from topographic map).

Drainage area.- 31.7 square miles.

Records available.- January 1927 to September 1942.

Average discharge.- 15 years, 33.6 second-feet.

Extremes.- Maximum discharge during year, 705 second-feet (regulated) June 18 (gage 

height, 4.35 feet); minimum, 0.1 second-foot Aug. 20-27 /

1927-42: Maximum discharge, 1,460 second-feet June 6, 1936 (gage height, 5.98 

feet), from rating curve extended above 700 second-feet; no flow at times when 

there is no leakage from dams above station.

Remarks.- Records good except those for Feb. 3-6, 8-9, which are fair. Flow regulated 

by storage in Bownan Lake (p. 313 ) and diversion into Bowtnan-Spauldlng Canal (p. 315 ).

Cooperation.- Water-stage recorder graph and two discharge measurements furnished by 

Nevada Irrigation District.

Rating table, water year 1941-43 (gage height, In feet, and discharge, in second-feet)

1.0

1.1

1.2

0.05

.7 

1.7

1.5

1.6

1.7

4.9 

6.2 

7.8

2.0

2.1

2.2

2.8 

3.0 

3.2

148

194

246

4.0 

4.3 

4.6

520

675

870

Discharge, in seccnd-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.2

.6

.6

.4

.4

a. 4

a. 4

a. 3

a. 3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.3

.2

.2

.2

.2

.2

.6

.4

.3

.2

.3

Nov.

4.7

6

2.3

1.2

.7

.4

.4

.5

.5

.6

.6

.6

.3

.6

.6

2.2

1.3

.S

.7

.5

.5

.4

.5

.5

.5

.5

.4

.4

1.2

1.8

-

Dec.

1.0

20

18

2.4

1.5

1.3

1.0

1.0

.8

.8

.6

.6

1.1

6

28

10

3.1

4.1

3.7

4.1

2.4

1.9

1.7

1.6

1.4

1.3

1.4

1.5

1.5

1.4

1.3

Jan.

1.2

.9

.9

1.0

1.0

1.0

16

4.8

2.7

2.5

2.4

2.1

2.2

2.0

1.8

1.5

1.4

1.3

1.3

1.2

1.2

1.3

1.3

11

22

18

25

3.5

2.3

2.0

2.1

Feb.

2.4

5

a3

a3

aSOO

a!70

132

a!20

alOO

119

124

144

148

152

161

172

170

168

166

161

159

159

159

157

155

150

148

148

_

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January ....................................

February ...................................

March........... ...........................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

148

146

146

144

144

144

144

146

144

148

166

152

140

140

119

21

21

22

28

28

28

28

27

13

1.7

1.5

1.6

1.8

2.0

2.5

2.6

Apr.

2.8

3.0

54

146

210

161

132

124

157

172

180

ISO

a220

a260

a260

a250

246

246

252

254

257

257

254

257

260

260

260

263

263

263

-

Secondfoot-days

b.9

32.5

126.5

24,677.5

138.9

3,655.4

2,400.7

6,103.8

9,913

9 111

'690.4

5.4

13.3

32,199.8

May

263

266

268

271

266

266

266

266

271

280

282

285

2S8

291

294

265

282

280

230

207

271

305

415

435

455

a450

8450

8440

435

435

415

Maximum

0.6

6

28

742

25

200

166

263

455

687

159

.2

.6

687

June

305

225

228

225

225

228

230

230

230

230

230

230

181

18

20

213

415

664

687

642

545

459

384

370

351

348

302

258

252

192

-

Minimum

O.J

, , .(

.]

.s

2.4

1..

2.1

207

18

.£

.]

.£

.]

July

159

92

66

92

132

66

42

12

1.2

.8

.6

.5

.5

.5

.4

.

.

.

f

.3

.2

.2

.3

.3

.2

.2

.2

.2

Aug.

0.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.1

.1

.1

.1

.1

.1

.1

.1

.2

.2

.2

.2

Mean

0.29

I 1.08

4.08

L 67.6

J 4.43

I 131

5 77.4

) SOS

920

304

' 22* 3

L .17

> .44

88.2

Sept.

0.2

.2

.2

.2

.5

.4

.4

.4

.5

.5

.4

.4

.4

.5

.5

.5

.5

.6

.6

.5

.5

.4

.4

.4

.4

.4

.5

.6

.6

.6

-

Runoff in 

acre-feet

18

64

251

43,940

276

7,250

4,760

12,110

19,660

18,070

1,370

11

26

63,870

a No g&ge-helght record; discharge computed on basis of range of stage and Information furnished by 

Nevada Irrigation District.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard tiae, subtract 1 hour.
FEATHER RIVER BASIN 315

Bowman-Spauldlng Canal at Intake, Calif.

Location.-Water-stage recorder, lat. 39°27', long. 120°39', in sec. 8, T. IS N., R.

12 E., 150 feet downstream from intake and a quarter of a mile downstream from Bowman 

Dam. Altitude of gage, about 5,400 feet (from topographic map).

Records available.- October 1927 to September 1942. 

Average discharge.- 15 years, 140 second-feet.

Extremes.- Maximum daily discharge during year, 246 second-feet Oct. 15; no flow Apr.21 

to May 10, June 5-8.

1927-42: Ilaxlmum daily discharge, 262 second-feet Aug. 2-9, 29, Sept. 10-13, 1928; 

no flow at times each year.

Remarks.- Records excellent. Canal diverts from left bank of Canyon Creek below Bovman 

Lake. Water is delivered to Fuller Lake, then to Lake Spaulding, and after passing 

through several powerhouses is used for irrigation in Nevada Irrigation District.

Cooperation.- Water-stage recorder graph and results of several discharge measurements 

furnished by Nevada Irrigation District.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

244

244

244

243

£42

241

240

242

242

242

241

240

240

242

246

245

244

244

244

244

244

243

243

243

242

243

238

239

241

241

242

Nov.

237

226

240

241

244

243

243

242

241

240

240

240

242

242

241

234

241

243

241

241

241

240

240

240

240

242

242

241

242

241

-

Dec.

240

206

117

225

229

229

233

234

233

234

236

236

235

226

115

23

151

144

131

151

165

190

210

219

223

227

227

228

230

230

231

Jan.

233

234

233

227

226

226

169

151

192

206

210

210

211

211

212

212

212

213

219

218

218

220

220

f!68

f 25

12

23

62

62

90

142

Feb.

142

111

127

146

118

62

120

149

177

178

178

180

191

200

202

201

202

203

206

211

213

215

215

216

216

816

217

217

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January. ...................................

February. ..............................:...

March. .....................................

April. .....................................

May. .......................................

June. ......................................

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

216

216

217

216

217

217

217

217

217

206

194

205

214

214

216

217

216

217

218

218

219

220

221

202

152

152

152

152

152

152

153

Apr.

155

155

98

34

40

92

120

126

79

63

63

63

33

.3

.1

.1

.1

.1

.1

.1

0

0

0

0

0

0

0

0

0

0

-

Secondfoot-days

7,513

7,211 

6,203

64,877.2

£,467

5,049

6,212

1,121.9

144.9

544.0

7,144 

7,144

7,139

60,8S7.8

May

0

0

0

0

0

0

0

0

0

0

.4

.4

.4

.4

.4

.3

.3

.3

50

74

13

.8

.7

.6

.7

.6

.5

.3

.3

.3

.2

Maximum

246

244

240

246

234

217

221

155

74

206

239

235

242

246

June

0.2

2.5

.8

.4

0

0

0

0

.1

.2

.1

.1

.1

.1

.1

4.8

2.0

.7

.7

2.1

1.5

5.5

5

5

60

19

29

68

130

206

-

Minimum

226

22

C

12

8£

152

C

C

C

181

226

23E

C

July

232

237

238

239

181

234

238

236

233

233

236

236

236

235

234

233

232

231

231

230

229

228

228

227

227

227

230

229

229

228

227

Aug.

227

227

227

227

226

231

231

231

231

231

232

232

232

232

231

230

229

229

231

231

230

232

231

228

227

223

232

234

234

235

235

Mean

242

240

200

178

176

180

200

37.4

4.67

18.1

230

230

238

167

Sept.

235

238

237

237

237

237

237

236

236

235

235

237

237

237

237

238

239

238

237

237

237

239

240

240

240

241

241

24fe

241

241

-

Runoff in 

acre-feet

14,900

14,300

12,310

128,700

10,840

10,010

12,320

2,230

287

1,080

14,170

14,170

14,160

120,800

f Oage height partly estimated on basis of partial graph and range of stage.

Time baais: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard tiite, subtract 1 hpur.
316 FEATHER RIVER HAS III

Deer Creek near Smartvlllf, Calif.

Location.- Water-stt.ce recorder, lat. 39°13'20", long. 121°16'00", in sec. 23, T. 16 H., 

 R. 5 E., 1 mile upstream from mouth and 2 miles northeast of Srartvllle. Altitude

of gage, about 500 feet (from topographic map). 

Drainage area.- 83.5 square niles.

S-Becond-feet Feb. 6 ( £aCe hei Eht, 10.37 

feet); minimum, 0.8 second-foot Oct. 4 and 5.

1935-42- Maximum discharge, 10,800 second-feet Dec. 11, 19o7 (gage height, 16.6 

feet, from f Icodmarkd), from ratine curve extended above 3,500 second-feet on basis 

of AVd~riethod ard velocity-area studies; minimum, 0.1 second-foot AV.C. 4-6, 15, 1940. 

Remarks.- Records good. Storage reservoirs and diversions above station; m;:mum_ amount 

diverted, about 40 second-feet. At tines water from South Fork of Yuba River is 

diverted into Deer Creek above station.

Rating table, water year 1941-42 (gage height, in feet, and discharge, in second-feet)

1.0

1.1

1.2

0.4 

1.0

1.9

1.5

1.6

1.7

7.5

11

2.0 

2.2 

2.5

4.0 

4.4 

4.8

405

535

700

6.0 1,375

2,200

3,200

3,060

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1.1

1.1

.9

.8

.8

1.0

2.1

3.9

4.2

4.0

3.9

4.2

6.5

3.7

2.7

2.6

2.5

4.0

2.7

2.1

3.5

5.0

4.4

3.1

2.6

5

15

14

12

9.5

8

Nov.

15

73

48

43

33

27

23

23

21

21

21

21

21

21

23

27

26

£5

24

24

24

24

23

20

5.S

3.7

3.9

5

24

48

Dec.

23

129

701

102

60

74

77

78

78

58

84

83

98

967

1,310

2,060

473

411

289

291

241

190

311

203

186

186

528

1,490

940

500

375

Jan.

282

222

195

177

163

152

364

470

308

255

228

211

201

190

179

182

174

168

163

153

148

207

459

1,030

1,940

1,300

2,330

1,280

758

571

465

Feb.

405

811

830

2,650

2,500

3,860

2,000

1,180

840

678

567

486

411

375

342

325

296

273

241

237

270

331

246

257

248

215

199

188

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January. ..................................

February ...................................

March ......................................

April ......................................

way. Uav .......................................

June ......................... .............

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

175

175

167

157

155

148

133

127

116

135

388

315

308

592

475

34C

270

248

226

199

175

152

132

101

94

84

78

76

73

73

74

Apr.

88

70

504

1,190

1,750

628

3S8

305

266

261

228

199

444

907

472

562

535

420

382

360

332

312

296

275

257

248

325

330

266

295

-

Secondfoot-days

136.9

741.1

12,596

70,457.0

14,925

21,261

5,961

12 ,895

8,902

3 ,208

560.5

161.9

76 . 5

81,424.9

May

524

340

300

280

261

244

228

222

217

222

411

395

287

264

355

348

305

289

266

228

197

186

174

165

488

388

300

267

259

244

228

Maximum

15

73

2,060

2,280

2,330

3,860

592

1,750

524

211

8

7

3,860

June

211

199

191

182

172

157

146

138

133

124

124

121

112

108

102

94

87

80

76

74

73

73

64

65

61

60

54

50

49

28

-

Minimum

0.8

3.7

23

.8

148

188

73

70

165

28

6

1.8

4 c

.8

July

19

30

39

35

35

34

31

29

30

20

17

17

17

17

16

16

16

17

16

14

14

12

9.5

7.5

6

6

7

8

8

9

8.5

Aug.

7

S

7

6

5.5

4.8

6

5.5

7

7

6.5

4.8

4.8

7

4.2

1.8

3.1

3.5

3.1

3.1

4.0

4.2

5

4.8

4.2

3.9

3.1

5

7

8

7

Mean

4.42

24.7

406

193

481

759

192

430

287

107

18* 1

5 " £2c.

223

Sept.

5

3.7

4.2

4.2

1.9

1.5

2.0

2.7

5.5

7

6

4.2

3.0

1.6

1.4

1.8

1.2

1.1

.9

.9

.9

1.0

1.1

1.1

1.1

1.5

1.9

2.3

2.7

5.1

Runoff in 

acre-feet

272

1,470

24,980

139,700

29,600

42,170

11,820

25,580

17,660

6,360

1,110

152

161,500

Peak discharge.- Dec. 16 (1:30 a.m.) 4,740 sec.-ft.; Jan. 25 (11 a.m.) 2,830 sec.-ft.; Jan.27 

(7 a.m.) 3,830 sec.-ft.; Feb. 4 (2 p.m.) 4,140 sec.-ft.; Feb. 6 (8 a.m.) 5,980 sec.-ft.; Apr. 5 

(8 a.m.) 3,200 sec.ft.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

tine to standard time, subtract 1 hour.
FEATHER RIVER BASIN 317

Bear River near Auburn, Calif.

Location.- Water-stage recorder, lat. 39°01', long. 121°05', near south line of sec. 33, 

T. 14 N., R. 8 E., 300 feet upstream from bridge on State Highway 49, 3i miles upstream 

from Wolf Creek, and 8 miles north of Auburn. Altitude of gage, about 1,300 feet 

(from topographic map).

Drainage area.- 137 square miles.

Records available.- December 1940 to September 1942 In reports of Geological Survey. 

1922, 1925-28, 1929-33, incomplete, (gage heights for high-water periods only) In reports of Division of Water Resources, Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 7,930 second-feet Feb. 6 (gage height, 8.49 

feet); minimum, 2.6 second-feet (regulated) Apr. 2.

1940-42: Maximum discharge, that of Feb. 6, 1942: minimum, 1.2 second-feet June 

24, 1941.

Remarks.- Records, good except those for December and January» which are fair. River receives Inflow from Yuba River Basin above gage; flow regulated by storage and diversions above station for irrigation and power development.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in 

(Shifting-control method used Nov. 5 to Dec. 16)

Oct. 1 to Feb. 6

2.2

2.6 

3.0

158

234

326

466

655

970

1,350

1,800

2,320

2,900

3,560

4,300

5,100

6,530

2.0 0.

econd-feet)

Feb. 7 to Sept. 30

.3 5.5 1.3 107

.4 9 1.6 162

.5 14 1.9 234

.6 20 2.2 324

.7 27 2.6 466

Note.- Same as preceding table above 2.3 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

13

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

.2

.2

s'.e

2.8

2.8

2.8

2.8

2.9

2.9

2.9

3.1

4.4

3.4

3.2

3.2

3.2

Nov.

4.6

6

4.2

4.^

16

41

48

55

71

76

82

80

80

80

96

111

115

115

66

15

14

15

15

13

8.5

4.7

4.4

4.4

6.5

6

-

Dec.

6

20

259

432

451

432

417

289

144

138

125

85

125

250

447

1.190

1.470

970

845

7C4

734

694

666

628

575

575

590

1,090

1,630

1,050

796

Jan.

644

580

570

565

560

550

550

565

570

570

570

555

560

550

550

546

541

532

519

502

486

474

486

565

2,180

2,980

4,910

2,740

1,800

1,430

1,070

Feb.

796

1,140

1,830

3,540

4.100

6,450

3,490

2,260

1.730

1,330

1.100

9i9

842

752

682

655

560

515

515

510

519

565

595

541

524

519

519

519

-

-

-

Month

October ....................................

November ...................................

Dacembe r . . ...............................

Calendar year 1941 ......................

January. ................................. .

February ...................................

March. .....................................

April. ...... ..............................

Hav ay. ................. .....................

June .................. .................. .

July. .................................. ...

August ... ............ ....... ...........

September. .................. . ............

Water year 1941-42 . ....................

Mar.

515

510

510

506

494

490

486

482

466

458

462

458

474

515

515

506

506

502

502

502

498

498

490

486

482

474

462

455

443

275

3.7

Apr.

3.1

2.6

20

759

2,700

1,780

1,210

991

942

977

660

546

590

],560

1,330

1,290

1,370

1,230

1,170

1,080

1,040

977

928

900

956

694

666

914

776

655

-

Secondfoot-days

118.8

1,258.0

17,880

162,613.4

30,280

38,047

14,425.7

28,716.7

23,887

6,015.8

1,221.6

203.5

269.5

162,323.6

May

1,130

861

770

688

672

655

555

510

532

541

770

887

722

694

894

1,060

854

590

606

58b

528

550

550

439

1,060

1,540

1,060

998

935

861

790

Maximum

4.7

115

1,630

2,990

4,910

6,450

515

2,700

1,540

783

114

8

9.5

6,450

June

783

716

710

682

575

428

344

237

50

3.4

3.2

3.0

3.2

5.5

7

9.5

18

22

31

135

153

124

140

129

129.

116

131

119

112

104

-

Minimum

2.8

4.2

6

1.5

474

510

3.7

2.6

439

3.0

4.1

5

8.5

2.6

July

102

104

99

96

114

73

94

66

99

99

96

60

15

12

10

9

.5

. 5

.1

.1

.4

.4

.4

.6

.6

.6

.6

.6

.6

.8

.8

Aug.

5

5.5

5.5

5

5

5

5.5

5.5

6

6

6

6

6

6

6

6.5

7

7

7

7

7

7

7

8

8

8

8

8

8

8

8

Mean

3.83

41.9

577

446

977

1,359

465

957

771

201

39.4

6.56

8.98

445

Sept.

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

8.5

9

9

9

9

9

9

9

9

9

9

9

9.5

9.5

9.6

9.5

9.5

9.5

9.5

9.5

9.5

~

Runoff in 

acre feet

236

2.50C

35,460

322,500

60,060

75,460

28,610

56,960

47,380

11,930

2,420

404

535

322,000

Time basis: Pacific standard time pri.ir to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert wpr time to standard time, subtract 1 hour.
318 FEATHER RIVER BASIN

Bear River near Wheatland, Calif.

Location.- Water-stage recorder, lat. 39°00', long. 121°25', in sec. 3, T. 13 N., R. 5

 ET TOO feet downstream from bridge on U. S. Highway 99E, 1 mile southeast of Wheatland, 

and 6fc miles downstream from Rock Creek. Altitude of gage, about 85 feet (from topographic map).

Drainage area.- 295 square miles.

Records available.- October 1928 to September 1942.

Average Qlscnarge.- 13 years (1929-42), 432 second-feet.

Extremes^- Maximum discharge during year, 13,000 second-feet Feb. 6 (gage height, 12.65

 feet): minimum discharge recorded, 9 second-feet June 18-20. " ,,-,,- 

1928-42: Maximum discharge, 21,600 second-feet Apr. 8, 1935 (gage height, 15.15 

feet); no flow May 8, Sept. 18-25, 1939.

Maximum discharge recorded, 29,600 second-feet Jan. 14, 1909, at site 8 miles upRemarks.-'Records good June 11 to Sept. 30, fair Nov. 2 to June 10, poor Oct. 1 to Nov. 1.

 River receives Inflow from Yuba River Basin above gage; flow regulated by storage and 

diversions above station for irrigation and power development.

0.4 

.6

1.0 

1.3

50

86

126

170

248

ating tables, water year 1941-42 (gage height, In feet, 

in second-feet)

and discharge,

2 to Apr. 5

1.5 

1.8 

2.3 

2.8 

3.5

315

470

785

1,140

1,665

2,860

4,270

6,020

8,750

11,900

Apr. 6 to Sept. 30

36

58

0.8 

.9 

1.1 

1.3 

1.5

S4 

114 

190 

280 

3S5

2.0 

3

Mote.- Same as preceding tabli

700 

1,400 

2,160 

3,840 

6,020 

above

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

> c40

Nov.

c40

149

122

94

77

84

94

86

98

100

108

104

102

102

104

155

146

152

146

82

72

70

72

64

64

64

57

54

64

116

-

Dec.

73

82

1,010

707

636

603

584

500

300

212

272

187

192

al,050

al,170

al,420

a3,250

al,690

1,280

1,030

995

911

939

876

785

799

1.100

3,230

3,370

2,040

1,460

Jan.

1,160

925

848

aSOO

a770

a750

a745

a970

a935

862

827

799

785

766

752

746

733

714

688

674

655

648

827

1,430

4,170

4,790

7,710

4,770

2,860

2,130

1,620

Feb.

1,220

1,510

2,500

6,740

7,540

11,800

6,160

3,720

2,720

2,100

904

1,380

1,180

1,090

995

946

876

785

772

759

792

1,140

960

925

946

855

799

759

-

-

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1941 ......................

January. ...................................

February. ............................ .....

March. .....................................

April.. ....................................

May........................................

June. ......................................

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

746

726

714

700

694

688

668

662

642

636

1,040

834

869

1,780

1,970

1,250

953

876

827

772

752

740

726

714

694

694

674

662

642

610

223

Apr.

217

192

352

2,310

5,580

3,470

2,220

1,780

1,500

1,530

1,220

1,020

952

3,020

2,140

1,980

2,390

1,900

1,670

1,500

1,390

1,260

1,170

1,110

1,120

994

945

1,180

1,060

896

-

Secondfoot days

1,240

2,842

32,753

256,821.0

47,859

62,873

25, 178

48, 068

29,095

7,312.5

1,363

738

775

260,096.5

Peak discharge.- Dec. 28 (5 p.m.) 5,840 sec. -ft.; Jan

May

1,470

1,190

1,020

917

679

380

427

658

707

728

931

1,270

980

882

945

1,200

1,040

826

763

749

721

721

721

637

975

2,090

1,310

1,170

1,070

994

924

Maximum

155

3,370

6,210

7,710

11,800

1,970

5,580

2,090

861

105

26

33

11,800

. 25 (11 p.

June

861

847

826

798

735

591

505

445

346

136

25

15

13

13

13

13

12

10

9.5

10

16

19

55

146

162

143

170

202

108

68

-

Minimum

40

73

9

648

759

223

192

380

9.5

16

18

20

9.5

1.) 6,640 S

July

105

99

93

87

87

87

63

61

54

71

63

63

34

16

18

20

23

33

34

33

25

20

22

20

19

19

19

18

18

19

20

Aug.

19

18

20

26

23

25

26

25

25

25

26

26

25

23

23

23

23

23

25

25

25

23

25

25

23

23

23

23

23

25

26

Mean

40

94.7

1,057

704

1,544

2,245

812

1,602

939

244

44.0

23.8

25.8

713

Sept.

26

23

22

22

20

20

20

20

22

22

22

22

23

22

26

31

33

31

31

31

31

30

30

31

31

30

28

28

25

22

Runoff in 

acre-feet

2,460

5,640

64,960

509,400

94,930

124,700

49,940

95,340

57,710

14,500

2,700

1,460

1,540

515,900

ec.-ft.; Jan. 27

(2 p.m.) 10,006 sec.-ft.; Feb. 4 (8:30 p.m.) 10,600 sec.-ft.; Feb. 6 (1 p.m.) 13,OOO sec.-ft.; Apr. 

5 (4 p.m.) 7,530 sec.-ft.

a No gage-height record; discharge computed on basis of record for station near Auburn.

c Backwater from temporary dam; discharge estimated.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
FEATHER RIVER BASIN 319

Bear River Canal near Coifax, Calif.

Location.- Water-stage recorder, lat. 39°07', long. 120°58', In sec. 28, T. 15 N., R. 

9 E., Just downstream from lower spillway gates, li miles downstream from diversion 

dam on Bear River, and 2 miles northwest of Coif ax. Altitude of gage, abo\it 1,950 

feet (from topographic map).

Records available.- January 1912 to September 1942. 

Average discharge.- 28 years (1914-42), 231 second-feet.

Extremes.- Maximum dally discharge during year, 464 second-feet July 24; no flow Apr. 

16-24, May 27 to June 4.

1912-42: Maximum dally discharge recorded, 476 second-feet July 17, Oct. 29, 

1937; no flow at times.

Remarks.- Canal diverts from left bank of Bear River in sec. 22, T. 15 N., R. 9 E. 

Water is first 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 of 

American River.

Cooperation.- Records of dally discharge furnished by Pacific Gas & Electric Co.

lischarge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

420

390

380

266

141

349

360

357

345

292

224

123

295

375

321

305

328

288

155

348

437

3S6

395

415

265

119

330

385

314

349

346

Nov.

334

300

351

407

435

449

389

380

231

410

410

408

441

394

390

248

372

441

441

401

39S

448

305

432

427

409

372

410

390

226

-

Dec.

423

388

357

408

457

44S

448

450

365

376

428

443

337

313

289

326

3SO

368

406

404

415

426

428

428

428

420

399

326

316

338

351

Jan.

346

407

370

420

417

425

383

342

385

400

422

441

443

449

432

441

43S

436

393

401

412

373

328

320

269

270

253

300

378

388

390

Feb.

388

364

333

273

220

266

245

266

285

353

383

383

330

284

358

332

414

434

434

426

372

348

394

373

402

416

415

422

_

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January ....................................

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1941-42 ......................

Mar.

412

421

412

418

434

432

449

428

413

413

353

365

388

368

340

341

387

405

406

402

395

400

420

422

422

430

428

428

417

433

433

Apr.

438

430

348

295

267

302

299

272

262

260

348

347

342

305

23

0

0

0

0

0

0

0

0

0

65

278

342

390

395

393

""

Secondfoot days

9,803

11,449

12,089

132,829

11,872

9,913

12,615

6,401

10,156

10,260

11,941

10)027

129,291

May

372

395

398

390

401

397

410

425

427

431

398

364

403

408

404

400

403

403

420

432

444

438

443

441

306

3

0

0

0

0

0

Maximum

437

449

457

463

449

434

449

438

444

454

464

459

441

464

June

0

0

0

0

173

264

345

385

385

375

364

373

432

374

425

454

452

445

432

424

402

408

403

433

441

425

444

418

374

410

-

Minimum

119

226

289

0

253

220

340

0

0

0

240

242

0

July

422

435

435

441

448

430

443

418

410

400

395

240

271

335

318

360

300

373

246

272

298

375

390

464

459

345

386

456

463

458

455

Aug.

422

242

308

444

420

445

452

399

260

353

450

421

454

448

454

436

436

452

447

459

435

452

448

400

449

447

424

432

396

316

364

Mean

316

382

390

364

383

354

407

213

32S

342

385

412

334

354

Sept.

428

441

426

431

432

249

296

418

434

441

417

422

316

422

427

352

284

281

254

250

237

253

262

266

255

250

248

258

282

295

-

Runoff in 

acre-feet

19,440

22,710

23,980

263,400

23,550

19,660

12J700

20,140

20,350

23,680

25,320

19,890

256,400

__ __ ___ Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war tine to standard tine, subtract 1 hour.
320 AMERICAN RIVER BASIN'

North Fork of American River at North Fork Dam, Calif.

Location.- Water-stage recorder above spillway of North Fork dam, lat. 38°56', long. 

 121"01', in SEi sec. 30, T. 13 N., R. 9 E., 2 miles upstream from Middle Pork and 4

miles northeast of Auburn. Datum of gage Is 715.0 feet above mean sea level (levels

by Corps of Engineers, U. S. Army).

Drainage area.- 343 square miles.

Records available.- October 1941 to September 1942.

Extremes.- Maximum discharge during year, 21,600 second-feet Jan. 27 (gage height, 6.73

minimum, less than 5 second-Ceet momentarily on Aug. 4, by closing gates in dam.

Remarks.- Records excellent except those for Oct. 1 to Dec. 16, which are fair, 

storage and a few diversions above station.

A little

Rating table, water year 1941-42 (gage height. In feet, and discharge. 

In second-feet)

0.2 40 1.3 840 3.8 5,400 

.3 75 1.7 1,270 4.2 6,980 

.4 120 2.1 1,740 4.8 9,700 

.5 175 2.5 2,280 5.4 12,920 

.7 310 3.0 3,080 6.0 16,600 

.9 460 3.4 4,080

Discharge, in second-feet, water year October 1941 to Septenber 1942

Day

1 

2 

3

4

5

6

7 

8 

9 

10

11 

12 

13 

14 

15

16 

17 

18 

19 

20

21 

23 

23

24 

25

26 

27 

28 

29 

30 

31

Oct.

60 

55 

55 

55 

60

60 

60 

60 

60 

60

60 

60 

65 

70 

70

65 

65 

65 

65 

70

75 

80 

80 

80 

85

90 

100 

120 

80 

75 

75

Nov.

95 

510 

410 

290 

250

h201 

h!70 

h!64 

h!42 

h!20

h!02 

h84 

80 

80 

75

120 

180 

200 

180 

160

140 

130 

125 

120 

110

110 

105 

105 

110 

130

Dec.

180 

500 

5,900 

1,500 

1,000

800 

700 

600 

550 

450

400 

380 

350 

800 

2,400

6,600 

2,910

1,780 

1,840 

1,680

1,350 

1,090 

1,090 

973 

860

780 

830 

1,490 

1,720 

1,480 

1,190

Jan.

951 

800 

710 

640 

586

550 

825 

2,820 

1,690 

1,360

1,250 

1,180 

1,100 

1,030 

951

920 

850

780 

720 

670

640 

670 

910 

1,850 

7,930

7.530 

13,700 

7,710 

4,600 

3,170 

2,480

Feb.

2,110 

2,480 

3,440 

5,110 

6,240

10,500 

6,940 

4,570 

3,420 

2,740

2,270

1,960 

1,730 

1,550 

1,400

1,300 

1,200 

1,140 

1,050 

995

1,020 

1,040 

930 

930 

890

860 

830 

780

Month

OOto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

MKV

June 

July 

Augu 

Sept

Ha

ber. ...................................

mber. ..................................

lendar year

1. .....................................

ter year 1941-42 ...............

Mar.

750 

760 

760 

750 

790

860 

790 

800 

860 

880

1,180 

1,390 

1,250 

1,250 

1,340

1,240 

1,150 

1,130 

1,070 

973

930 

940 

940 

920 

860

810 

780 

770 

810 

850 

940

Apr.

1 

1 

1 

4 

4

3 

2 

2 

2 

2

2 

2 

2 

3 

2

2 

2 

2 

2 

2

2 

2

2

1 

1

1

1 

1 

1 

1

Secondfoot days

2,180 

4,798 

44,173

-

71,573 

69, 425 

29,523 

68,390

74,070 

47,881 

10,312 

3,101 

2,006

427,432

Peak discharge.- Jan. 25 (8:30 p.m.) 10,200 sec. -ft.;

,020 

,090 

,840 

,020 

,140

,050 

,380 

,170 

,220 

,400

,310 

,320 

,690 

,750 

,690

,500 

,380 

,080 

,030 

,150

,060 

,340 

,280 

,840 

,940

,870 

,950 

,790 

,550 

,540

May

2,060 

1,800 

1,720 

1,700 

1,700

1,780 

2,030 

2,280 

2,320 

2,030

1,970 

1,970 

1,840 

1,940 

2,310

2,310 

2,240 

2,280 

2,420 

2,840

3,350 

3,570 

2,980 

2,810 

4,770

4,170 

2,740 

2,380 

2,060 

1,900 

1,800

Maximum

120 

510 

6,600

-

13,700 

10,500 

1,390 

4,140 

4,770 

2,550 

720 

149 

75

13,700

June

1,960 

2,220 

1,970 

2,240 

2,550

2,550 

2,180 

2,030 

2,170 

2,220

2,010 

1,900 

1,790 

1,840 

1,900

1,730 

1,480 

1,440 

1,390 

1,230

1,100 

1,060 

1,070 

1,030 

951

840

800 

770 

740 

720

Minimum

55 

75 

180

-

550 

780 

750 

1,020 

1,700 

720 

142 

80 

58

55

July

720 

700 

650 

613 

577

514 

469 

444 

396 

366

352 

331 

310 

303 

289

282 

275 

261 

247 

240

234 

220 

208 

194 

182

170 

164 

158 

153 

148 

142

Aug.

136 

136 

131 

149 

106

116 

116 

111 

111 

106

106 

106 

102 

102 

102

98 

98 

93 

88 

88

88 

88 

84 

80 

80

80 

80 

80 

80 

80 

80

Sept.

75 

75 

75 

75 

75

75 

72 

72 

75 

75

75 

75 

72 

72 

68

64 

64 

61 

58 

58

61 

61 

61 

61 

58

61 

58 

58 

58 

58

Moan Runoff in Mean acre-feet

70.3 4,320 

160 9,520 

1,425 87,620

-

2,309 142,000 

2, 479 13V, 700 

952 58,560 

2,280 135,600 

2,389 146,900 

1,596 94,970 

333 20,450 

100 6,150 

66.9 3,980

1,171 847,800

Jan. 27 (12 m.) 21,600 sec. -ft.; Feb. 6

(11 a.m.) J.2,700 sec.-ft.

h Computed from dally staff-gage reading.

Hote.- Discharge Oct. 1 to Nov. 5, Nov. 13 to Dec. 16 computed on basis of Incomplete and unpubllshed records for station near Colfax, known range of stage and records for Middle Fork of 

American Hiver near Auburn.

Time basis! Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
AMERICAN RIVER BASIN 32]

North Fork of American River at Rattlesnake Bridge, Calif.

Location,.- Water-stage recorder, lat. 38°49', long. 12,1°06', in SWi sec. 9, T. 11 N.,

R. 8 E., 800 feet downstre-sm from Rattlesnake Bridge, 3 miles downstream fron Pilot

Creek, and 6 miles south of Auburn. Datum of gage is 343.65 feet above mean sea

level (river-profile survey). 

Drainage area.- 999 square miles.

Records available.- November 1930 to September 1937, December 1938 to September 1942. 

Extremes.- Maximum discharge during year, 55,800 second-feet Jan. 27 (gage height, 18.70

feet), from rating curve extended above 34,000 second-feet by logarithmic plotting;

minimum, 94 second-feet Oct. 12.

1930-42: Maximum discharge, 78,000 second-feet Dec. 11, 1937 (gage height, 25.9

feet, from floodmarks), from rating curve extended above 25,000 second-feet; minimum,

6.5 second-feet (regulated) Aug. 15, 1931. 

Remarks.- Records good. Storage, diversions, and regulation above station; low flow

greatly affected by diversions into Ilorth Fork ditch and inflow from Bear and Yuba

River Basins through South Canal of Pacific Gas & Electric Co.

Rating tables, water year 1941-48 (gage height, In feet, and discharge, In second-feet)

Oct. I to Feb. 6 Feb. 7 to Sept. 30

0.5 114 8.4 1,260 7.0 9,300 0.2 120 2.8 8, 

.6 138 2.8 1,660 8.O 11,7OO .3 146 3.2 8, 

.8 196 3.8 2,180 9.0 14,360 .5 210 3.6 3, 

1.0 870 3.6 2,660 10 17.300 .7 898 4.0 3, 

1.2 358 4.0 3,280 18 24,400 .9 404 4.5 4, 

1.4 470 4.5 4,120 14 32,500 1.1 524 5.0 5, 

1.6 605 5.0 5,080 15.5 39,250 1.3 655 6.0 7, 

1.8 760 5.5 6,080 1.5 800 7.0 9, 

8.0 920 6.0 7,040 1.7 960 8.0 11, 

8.0 1,880 9.0 14, 

2.4 1,620 10.5 19,

Discharge, in second-feet, water year October 1941 to September 1942

Dsy

1 

2 

3 

4 

5

6 

7 

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.

306 

302 

274 

188 

122

182 

250 

240 

244 

246

145 

187 

171 

282 

290

284 

317 

256 

220

231

398 

456 

476 

351 

488

246

406 

636 

515 

468 

454

Nov.

448 

1,370 

2,240 

1,530 

1,140

904 

792 

712 

672 

561

604 

538 

605 

598 

591

665 

768 

896 

768 

696

650 

628 

612 

605 

591

591 

584 

584 

598 

665

Dec.

864 

944 

20,100 

5,670 

2,910

2,250 

1,960 

1,760 

1,640 

1,620

1,550 

1,480 

1,440 

2,410 

6,930

15,800 

8,270 

4,700 

5,060 

4,530

3,830 

3,010 

2,880 

2,620 

2,250

2,070 

2,220 

3,620 

4,410 

3,900 

3,170

Jan.

2,590 

2,140 

1,990 

1,860 

1,760

1,700 

1,840 

7,570 

5,040 

3,890

3,520 

3,390 

3,180 

3,020 

2,800

2,650 

2,440 

2,250 

2,110 

2,000

1,950 

1,990 

2,480 

4,600 

21,200

22,000 

39,100 

26,400 

14,300 

9,710 

7,630

Feb.

6,580 

7,000 

9,400 

12,300 

14,700

23,800 

18,800 

12,000 

9,160 

7,580

6,540 

5,800 

5,170 

4,710 

4,300

3,960 

3,770 

3,560 

3,370 

3,180

3,180 

3,100 

2,870 

2,970 

2,910

2,750 

2,670 

2,520

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri

UAV

June 

July 

Augu 

Sept

ffa

lendar year 1941 ......................

ary

1. .....................................

St. . ........................... . . . ember. . . 

ter year 1941-42 ...............

liar.

2,360 

2,430 

2,520 

2,500 

2,630

2,870 

2,780 

2,740 

2,970 

3,100

3,900 

4,580 

4,240 

4,240 

4,190

3,940 

3,640 

3,560 

3,550 

3,280

3,140 

3,140 

3,150 

3,200 

3,030

2,870 

2,760 

2,730 

2,820 

3,000 

3,370

Apr.

3,660 

3,980 

5,300 

11,600 

10,700

8,180 

6,670 

6,350 

6,560 

7,260

7,260 

7,420 

8,220 

10,500 

7,920

7,180 

6,840 

5,930 

5,800 

6,290

6,250 

7,050 

6,880 

5,710 

5,840

5,890 

6,060 

5,640 

4,850 

4,720

Second 

foot-days

9,511 

23,206 

185,868

1,099,617

209,100 

188,650 

99,820 

202,450 

226,680 

155,880 

38,041 

11,362 

6,782

1,296,750

Bay

5,970 

5,370 

5,160 

5,300 

5,300

5,640 

6,480 

7,360 

7,580 

6,580

6,250 

6,080 

5,590 

5,770 

6,670

6,990 

6,610 

6,980 

7,540 

8,740

10,400 

11,000 

9,860 

8,900 

12,900

13,700 

8,140 

6,960 

6,060 

5,570 

5,230

Uaxisum

636 

2,240 

20,100

20,100

39,100 

23,800 

4,580 

11,600 

13,700 

8,120 

2,630 

512 

388

39,100

June

5,840 

6,670 

5,970 

6,600 

7,600

8,120 

7,400 

6,440 

6,820 

7,220

6,650 

6,120 

5,890 

6,010 

6,200

5,890 

5,030 

4,990 

4,740 

4,140

3,790 

3,610 

3,770 

3,690 

3,400

2,910 

2,640 

2,570 

2,570 

2,590

Minimum

122 

448 

864

119

1,700 

2,520 

2,360 

3,660 

5,160 

2,570 

562 

248 

130

122

Peak discharge.- Dec. 3 (10 a.m.) 31.600 sec. -ft. ; Dec. 16 (6 p.m.) 19,800

July

2,600 

2,630 

2,520 

2,410 

2,340

2,060 

1,880 

1,780 

1,560 

1,400

1,260 

1,130 

1,020 

968 

960

936

904 

864 

785 

770

778 

785 

711 

725 

748

595

608 

582 

562 

608 

562

080 

600 

180 

820 

670 

570 

460 

460 

720 

360 

050

Aug.

512 

377 

361 

474 

468

355

468 

450 

308 

270

361 

404 

388 

404 

404

372 

350 

361 

355 

393

361 

366 

334 

314 

308

314 

314 

329 

289 

248 

350

Mean

307 

774 

4,060

3,013

6,745 

6,738 

3,801 

6,748 

7,312 

5,196 

1,227 

367 

226

3,553

sec. -ft.; J

Sept.

303 

289 

366 

261 

377

179 

170 

270 

388 

298

355 

377 

284 

284 

289

257

170 

810 

143 

130

130 

133 

133 

130 

130

136 

146 

146 

146 

152

Runoff in 

acre-feet

18,860 

46,030 

249,700

2,181,000

414,700 

374,200 

196,800 

401,600 

449,600 

309,200 

75,450 

22,540 

13,450

2,572,000

an. 25

(10:30 p.m.) 28,800 sec.-ft.; Jan. 27 (3 p.m.) 55,800 sec.-ft.; Feb. 6 (2 p.m.) 26,800 sec.-ft.; 

May 25 (11 p.m.) 23,000 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
322 AMERICAN RIVER BASIN 

American River at Fair Oaks, Calif.

Location.- Water-stage recorder, lat. 38°38'15", long. 121°15'55", Just upstream from 

highway bridge at Fair Oaks, Sacramento County, and 10 miles downstream from South 

Fork. Altitude of gage, about 72 feet (from topographic map).

Drainage area.- 1,921 square miles.

Records available.- November 1904 to September 1942 (at several sites near highway bridge).

Average discharge.- 37 years (1905-42), 3,737 second-feet.

Extremes.- Maximum discharge during year, 83,200 second-feet Jan. 27 (gage height, 24.65 

feetl; minimum, 212 second-feet Sept. 25.

1904-42: Maximum discharge, 140,000 second-feet Mar. 25, 1928 (gage height, 31.45 

feet, present datum), from, rating curve extended above 75,000 second-feet; flood of 

Mar. 19, 1907 reached a stage of 3].4 feet, present datum (discharge probably about 

same as that of Mar. 25, 1928); minimum, 3.6 second-feet (regulated)Aug. 16, 1924.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

F16W rogulated by storage, many diversions, and power plants above station. Some inflow from Bear and Yuba River Basins.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

475

447

421

363

334

282

368

396

400

404

379

309

306

393

475

515

463

471

424

379

519

650

681

564

604

a550

aSOO

a650

725

672

609

Nov.

618

1,020

4,180

2,690

1,770

1,300

1,070

948

872

801

812

725

828

801

770

823

954

1,150

1,030

930

862

801

828

780

796

834

828

790

801

856

 *

Dec.

1,030

1,140

22, 500

9,810

4,280

3,080

2,600

2,070

1,820

1,760

1,660

1,520

1,410

2,390

6,330

17,800

12,800

6,840

6,860

6,220

5,770

4,540

4,200

4,140

3,560

3,230

3,280

5,870

7,860

7,310

5,660

Jan.

4,540

3,590

3,180

2,980

2,840

2,700

2,690

8,560

8,120

5,980

5,210

4,970

4,710

4,490

4,250

4,050

3.820

3,510

3,280

3,160

3,060

3,050

3,710

7,580

29,000

29,700

54,600

36,500

20,300

14,500

11,600

Month

Feb.

9,940

10,100

14,100

18,000

24.000

32,600

28,100

18,500

14,200

11,900

10,200

9,120

8,140

7,370

6,700

6,200

5,900

5,600

5,320

5,090

5,020

5,420

4,820

4,760

4,820

4,530

4,400

4,220

_

_

-

October ....................................

November. ..................................

December ...................................

Calendar year 1941 ......................

January. ...................................

February ...................................

March... ...................................

April. .....................................

May

June. ......................................

July. ......................................

August .....................................

September ..................................

Water year 1941-42 ......................

Mar.

4,000

4,020

4,120

4,070

4,160

4,460

4,500

4,320

4,640

4,800

6,020

6,780

6,400

6,310

7,390

6,120

5,580

5,360

5,390

5,000

4,750

4,750

4,800

4,830

4,650

4,400

4,200

4,180

4,250

4,490

4,880

Apr.

5,430

5,580

6,780

16,100

17,600

12,800

10,300

9,580

9,860

10,600

10,900

11,000

11,800

16,800

13,000

11,300

11,400

9,890

9,360

9,960

10,100

11,100

11,000

9,430

9,290

9,410

9,620

9,580

8,080

7,530

-

Secondfoot-days

14,723

32,268

169,340

1,661,404

300, 230

289,070

153,620

315, 180

359,950

274,900

74,474

16,771

11,347

2,011,873

Peak discharge.- Dec. 3 (3 o.ai. ) 40.600 sec. -ft. : Dec

May

9,720

8,870

8,250

8,380

8,450

8,890

10,200

11,500

12,000

10,800

10,300

10,200

9,000

8,930

9,960

11,000

10,200

10,700

11,600

13,300

16,100

17,300

16,400

14, 500

17,900

22,800

13,400

11,400

10,200

9,050

8,650

Maximum

725

4,180

22,500

26,900

54,600

32, 600

7,390

17,600

22,800

13,700

4,970

872

519

54,600

16 (9 p. ai

June

9,480

10,900

10,300

10,900

12, 500

13,700

13, 100

11,300

11,800

12, 700

11,900

11,100

10,600

10,700

11,100

10,600

8,910

8,760

8,380

7,440

6,840

6,600

6,820

6,760

6,320

5,610

5,040

4,890

4,930

4,920

-

Minimum

282

618

1,030

255

2,690

4,220

4,000

5,430

8,250

4,890

878

400

270

270

July

4,970

4,960

4,860

4,740

4,650

4,240

3,950

3,730

3,360

3,030

2,760

2,510

2,180

1,960

1,820

1,800

1,750

1,690

1,560

1,490

1,440

1,380

1,330

1,250

1,280

1,080

990

984

924

948

878

Aug.

872

636

596

582

695

596

622

632

568

463

459

573

555

582

573

573

539

515

503

527

507

503

483

463

463

459

463

463

463

400

443

Mean

475

1,076

5,463

4,552

9,685

10,320

4,955

10, 510

11,610

9,163

2,402

541

378

5,512

Sept.

459

439

499

439

475

407

321

351

515

455

487

519

479

414

443

439

358

368

318

291

279

279

309

273

270

273

285

312

300

291

-

Runoff in 

acre-feet

29,200

64,000

335,900

3,295,000

595,500

573,400

304,700

625,200

714,000

545,300

147,700

33,260

22,510

3,991,000

) 22,500 sec. -ft.; Jan. 26 (1:30

«. «! / v^f \jw ois^ ±u»> UCU.A. f, i \u t w p»m. ; o*j» £w am;. iu.j r ou» o ^D P»m* J O ( OUU see. It* : flay BO

(3 a.m.) 32,000 sec.-ft.

a No gage-height record; discharge computed on basis of recorded range in stage and one discharge 

measurement.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
AMERICAN RIVER BASIN 323

American River at Sacramento, Calif.

Location.- Water-stare recorder, lat. 38°34'05", long. 12l°25'20", at H Street Bridge, 

just east of Sacranento, Sacramento County, 6i miles upstream from mouth Zero of 

gage is set to datum of Corps of Engineers, U. S. Army

Records available.- July to October 1921, October 1929 to October 1932, and May 1934 

to September 1942 (low-water periods only} in reports of Geological Survey. 1926-42

of8 rP ° S

arna

Extremes.- Minimum discharge during period June to September 1942, 246 second-feet 

Sept. 26 (gage height, 19.29 feet).

1921, 1929-32, 1934-42: Minimum discharge recorded, 21 second-feet Auc. 14 1931 

Remarks.- Records good. Flow regulated by reservoirs, rns.ny diversions, and power plants

above station. Some inflow from Bear and Yuba River Basins.

Cooperation.- Records collected and prepared in cooperation with Division of Watpr 

Resources, Department of Public Works, State of California.

Rating tables for periods Oct. 1 to Nov. 30, 1941, and June 1 to Sept. 30, 

1942 (gage height, In feet, and discharge, In second-feet)

19.4

19.7

20.0

20.5

21.0

22.0

23.0

23.5

270

415

580

940

1,340

2,280

3,470

4,170

19.3

19.5

19.7

20.0

20.3

20.5

21.0

22.0

250

340

440

605

820

1,000

1,460

2,540

3,700

5,020

23.0

24.0

2B.O

26.0

27.0 11,100

28.3 14,500

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

455

509

482

440

360

288

325

405

405

410

420

330

330

385

470

509

487

492

476

415

465

626

673

612

593

520

482

715

798

730

645

Nov.

666

940

4,030

2,730

1,820

1,370

1,120

972

902

842

782

730

812

805

775

812

940

1,120

1,110

988

895

805

812

805

768

805

828

835

798

828

-

Dec.

Month

Jan. Feb.

October ....................................

November ...................................

December ...................................

Calendar year ......................

January ....................................

February. ..................................

March. ................................ ....

April. .....................................

May. ........... ...........................

June .......................................

July. ...................... ...............

August .................. ..................

September ..................................

Water year ......................

Mar. Apr.

Secondfoot-days

15,252

'

255,580

16 ',592

12 093

_

May

Maximum

798

4,030

13,300

4,480 

820

540

_

June

9,300

10,600

9,950

10,300

12,000

13,300

12,800

10,900

11,100

12,100

11,200

10,100

9,690

9,690

10,000

9,660

8,120

7,770

7,480

6,660

6,160

5,850

6,050

6,020

5,680

5,130

4,640

4,430

4,450

4,450

-

Minimum

28£

666

4,430 

82S

43 E

282

_

July

4,480

4,470

4,420

4,300

4,230

3,920

3,630

3,440

3,180

2,830

2,570

2,340

2,060

1,860

1,700

1,730

1,680

1,620

1,490

1,420

1,380

1,310

1,270

1,200

1,240

1,070

937

937

883

901

829

Aug.

820

650

581

545

664

612

569

612

581

460

450

557

545

557

551

557

540

506

490

506

518

485

506

470

470

465

470

490

485

435

445

Mean

492

1 ,082

8,519

2,236 

535

403

_

Sept.

496

460

501

475

470

506

345

340

496

506

496

540

540

440

480

465

430

360

400

326

290

290

331

300

282

286

295

308

326

313

-

Runoff in 

acre feet

30 250

64|350

506,900 

137 500

3? 910

 * *^on

_

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific wartime thereafter. 

Tu convert war time to standard time, subtract 1 hour.
324 AMERICAN RIVER BASIN 

Middle Fork of American River near Auburn, Calif.

Location.- Water-stage recorder, lat. 38°55', long. 121°00', in NWi sec. 5, T. 12 II., R. 

9 E., at Mountain Quarry Co.'s plant, 1.7 miles upstream from confluence with !forth 

Fork of American River and 3i miles northeast of Auburn. Datum of gage is 568.5 feet 

above mean sea level (from river profile survey).

Drainage area.- b!9 square miles.

Records available.- December 1930 to September 1942. October 1911 to December 1930, at 

site half a mile downstream.

Average discharge.- 51 years, 1,376 second-feet.

Extremes.- Maximum discharge during year, 32,000 second-feet Jan. 27 (gage height, 21.60 

feet); minimum, 70 second-feet Oct. 3 and 5.

1911-42: Maximum discharge, about 62,000 second-feet Mar. 25, 1928 (gape height, 

35.6 feet, former site and datum; 33.4 feet, present site and datum, from floodmarks); 

minimum, 20 second-feet Sept. 6, 1931, Sept. 19, 1934.

Remarks.- Records good. Small storage reservoirs and diversions above station.

Rating tables, water yea 1941-42 (gage height, In feet, 

In second-feet)

and discharge,

Oct. 1 to Dec eo. 4 to Sept. 30

66

87

110

137

166

234

3.0 

3.5 

4.0 

5.0

318

442

600

1,015

1,520

2,450

3,740

4,940

7,800

11,500

15,900

21,100

1.2 

1.4 

1.6 

1.8 

2.0

114

136

160

190

2.2 

2.4 

2.8 

3.2 

3.6

223

260

348

452

580

4.0 

5.0 

6.5

735

1,190

1,965

2,920

4,940

Note.- Same as preceding table above 

10 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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 

74 

72 

72 

72

71 

74 

76 

76 

76

75 

76 

83 

94 

89

85 

83

80 

BO 

82

90 

104 

106 

100 

114

123 

147 

171 

148 

130 

120

Nov.

127 

977 

1,420 

763 

482

340 

272 

232 

207 

190

177 

168 

158 

152 

150

193 

300 

325 

256 

216

192 

177 

168 

162 

154

152 

150 

151 

160 

190

Dec.

366 

813 

13,400 

2,790 

1,480

1,070 

856 

707 

625 

587

548 

506 

497 

1,050 

3,890

7,560 

4,000 

2,580 

2,800 

2,490

2,100 

1,680 

1,630 

1,450 

1,280

1,200 

1,260 

1,820 

2,010 

1.880 

1,600

Jan.

1,300

i,:oo

1,030 

951 

892

B56 

1,040 

4,200 

2,800 

2,180

2,000 

1,950 

1,860 

1,760 

1,650

1,550 

1,430 

1,320 

1,220 

1,150

1,030 

3,100 

1,440 

2.820 

11,900

11,300 

20,900 

11,800 

6,790 

5,040 

4,010

Feb.

3,510 

3,^90 

5,070 

6,300 

7,130

10, 800 

8,880 

6,300 

4,870 

4,080

3,490 

3,160 

2,790 

2,510 

2,330

2,240 

2,120 

2,040 

1 , 930

1,830

1,660 

1,890 

1,690 

1,710

1,650

1,590 

1,540 

1.500

Month

Octo 

Move 

Dece

Ca

Janu 

Febr 

Marc 

Apr!

Mftv

June 

July 

Augu 

Sept

Wa

lendar year 194

1. . . ..................................

ter year 1941-42 ...............

Peak discharge.- D

32,300 sec. -ft.; Feb 

Time basis: Pacif

Mar.

1,440 

1,460 

1,480 

1,520 

1,640

1,870 

1,830 

1,870 

2,040 

2,110

2,550 

2,950 

2,660 

2,560 

2,450

2,280 

2,210 

2,200 

2,170 

2,040

1,990 

2,020 

2,060 

2,040 

1,950

1,860 

1,800 

1,^90 

1,880 

2,000 

2,280

Apr.

2,440 

2,640 

3,750 

7,190 

5,590

4,410 

3,860 

3,800 

4,150 

4,650

4,530 

4,690 

5,370 

6,570 

4,980

4,590 

4,220 

3,640 

3,640 

4,040

4,080 

4,760 

4,460 

3,670 

3,930

3,780 

3,920 

3,430 

2,970 

3,020

Secondfoot-days

2,919 

8,761 

66,525

619,762

110,419 

98,600 

63,000 

126,770 

145,460 

105,800 

27,374 

5,540 

3,373

764,541

May

3,490 

3,130 

3,100 

3,280 

3,280

3,560 

4,240 

4,890 

4,990 

4,110

3,920 

3,670 

3,390 

3,550 

4,300

4,240 

4,120 

4,520 

5,040 

6,080

6,920 

7,290 

6,440 

6,120 

9,370

7,800 

5,240 

4,520 

3,890 

3,580 

3,390

Maximum

171 

1,420 

13,400

13,400

20,900 

10,800 

2,950 

7,190 

9,370 

5,560 

2,010 

266 

130

20,900

June

3,920 

4,460 

3,920 

4,460 

5,290

5,560 

5,080 

4,250 

4,580 

5,000

4,480 

4,120 

3,880 

3,960 

4,190

3,830 

3,270 

3,340 

3,180 

2,770

2,570 

2,540 

2,640 

2,610 

2,380

2,040 

1,840 

1,840 

1,880 

1,920

Minimum

71 

127 

366

71

856 

1..500 

1,440 

2,440 

3,100 

1,840 

284 

130 

98

71

July

1,970 

2,010 

1,900 

1,820 

1,790

1,560 

1,390 

1,340 

1,100 

974

924 

870 

780 

727 

723

719 

683 

625 

580 

570

535 

500 

464

446 

401

377 

355 

336 

317 

304 

284

Aug.

266 

258 

249 

237 

228

218 

211 

208 

203 

196

190 

190 

195 

187 

180

176 

170 

161 

158 

153

149 

146 

142 

138 

134

134 

133 

133 

133

134 

130

Mean

94.2 

292 

2,146

1,698

3,562 

3,521 

2,032 

4,226 

4,692 

3,527 

883 

179 

112

2,095

Sept.

127 

125 

125 

125 

124

122 

121 

120 

123 

125

130 

130 

125 

121 

116

112 

109 

106 

101 

100

100 

100 

99 

98 

98

98 

98 

98 

98 

99

Runoff in 

acre- feet

5,790 

17,380 

132,000

1,229,000

219,000 

195,600 

125,000 

251,400 

288, 500 

209,900 

54,300 

10,990 

6,690

1,517,000

30. 3 (8 a.m.) 21,900 sec. -ft.; Dec. 16 (4 13. m.) 9,420 sec. -ft.; Jan. 27 (1 p.m.) 

6 (1 p.m.) 12,300 sec. -ft.; May 25 (8 p.m.) 15,800 sec. -ft. 

Lc standard tln-e prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.

To convert war time to standard time, subtract 1 hour.
AMERICAN RIVER BASIN 325

Scut'i Fork of American River near Kyburz, Calif.

Lo gat ion.- Water-stage recorder, lat. 38°46', long. 120°19', in S-J sec. 29, T. 11 N., R. 

15 E., beside Lincoln Highway, 0.5 nile downstream from Silver Fork of South Fork and 

2 miles west of Kyburs. Altitude of gage, about 4,030 feet (from topographic map).

Drainage area.- 196 square miles.

Records available.- August to December 1907, October 1922 to September 1942.

Average discharge.- 20 years (1922-42), 264 second-feet.

Extremes.- Maximum discharge during year, 3,770 second-feet Dec. 3 (gage height, 6.55 

feet); minimum, 0.6 second-foot Oct. 23.

1922-42: Maximum discharge, 9,700 second-feet Dec. 11, 1937 (gage height, 8.55 

feet), from rating curve extended above 4,000 second-feet on basis of velocity-area 

studies; minimum, 0.3 second-foot Nov. 9-11, 1929.

Remarks.- Records good except those affected by ice and those below two second-feet, 

which are fair. Flow regulated by storage and diversions, (see record for El Dorado 

Canal, which diverts half a mile above station.)

Cooperation.- Water-stage recorder graph and result of one discharge measurement furnished by Pacific Gas & Electric Co. in connection with a Federal Power Commission 

project.

Discharge, in second-foot, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

3.4 

3.8 

3.4 

4.0 

4.0

3.8 

3.8 

3.1 

2.9 

3.8

3.1 

3.4 

4.3 

3.3 

2.5

1.8 

1.9 

2.9 

1.7 

2.0

13 

1.8 

.8 

1.3 

1.6

1.4 

2.2 

1.4 

1.2 

1.4 

1.7

Nov.

32

473 

141 

38 

1.4

1.5 

.8

1.2

1.5 

1.5

2.0 

1.6 

1.6 

1.4 

1.2

2.4 

1.9 

1.7 

1.8 

1.2

3.4

1.3 

1.4 

2.0 

1.9

1.8 

1.0 

1.4 

1.9

1.2

Dec.

1.5 

642 

1,710 

266 

153

115 

87 

70 

58 

50

32 

24

19 

33 

280

438 

209 

174 

199 

197

134 

113 

107 

94 

97

89 

83 

79 

70 

b76 

b80

Jan.

83 

b96 

b95 

b94 

b94

94 

153 

248 

172 

143

143 

143 

140 

130 

123

115 

105 

99 

94 

89

87 

96 

107 

208 

538

849 

1.650 

848 

532 

412 

348

Feb.

308 

308 

291 

294 

304

348 

304 

257 

237 

224

340 

322 

311 

294 

285

285

278 

269 

257 

251

251 

248 

232 

232 

224

219 

214 

206

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc

Apri

June 

July 

Augu 

Sept

Wa

ber. ........... .......................

mber . . ........ ...... . . . ... ...

lendar year 1941 

ary

h. .......... . . . . . . . ........

1. .....

ter year 1941 *2 ....

Mar.

209 

226 

221 

232 

278

308 

275 

329 

363 

367

407 

340 

288 

254 

232

214 

214 

234 

216 

204

209 

221 

242 

229 

211

199 

206 

219 

260 

304 

382

Apr.

382 

496 

761 

930 

640

565

587 

684 

791 

885

915 

1,040 

1,230 

1,240 

908

915 

763 

678 

777 

922

1,060 

1,270 

1,100 

945 

1,070

1,020 

1,030 

833 

716 

6S4

Secondfoot-days

90.7 

726.0 

5,779.5

123.430.0

8,128 

7,593 

8,093 

25,837 

44,274 

54,810 

12,114.0 

76.0 

111.7

167,632.9

May

647 

605 

678 

763 

885

1,170 

1,450 

1,620 

1,630 

1,370

1,230 

1,060 

991 

975 

968

900 

952 

1,110 

1,470 

2,020

2,340 

2,680 

2,370 

2,490 

2,970

2,070 

1,630 

1,480 

1,240 

1,180 

1,330

Maximum

13 

473 

1,710

2,600

1,650 

348 

407 

1,270 

2,970 

2,510 

1,180 

11 

27

2,970

June

1,620 

1,760 

1,710 

1,990 

2,340

2,610 

2,340 

2,220 

2,460 

2,490

2,380 

2,220 

2,190 

2,300 

2,340

2,010 

1,760 

1,760 

1,670 

1,520

1,490 

1,530 

1,560 

1,530 

1,420

1,200 

1,110 

1,110 

1,080 

1,090

Minimum

0.6

.e 

l.S

.s

83 

206 

199 

382

605 

1,080 

2.C 

.8 

1.3

.e

July

1,080 

1,080 

1,180 

1,110 

1,010

930 

848 

743 » 

622 

521

425 

294

260 

204 

199

216 

216 

197

1S8 

162

141 

124 

113 

89 

53

39 

30 

21 

12 

5 

2.0

Aug.

1.8 

1.7 

1.0 

1.2 

2.6

2.4

1.1 

1.8 

1.1 

.8

1.3 

1.3 

9 

11 

1.2

1.2 

.8 

1.4 

1.2 

1.2

3.3 

9 

5.5

2.2 

1.7

1.7 

1.2 

1.5 

1.8 

2.2 

.8

Mean

2.93 

24.2

186

338

262

271 

261 

861 

1.4E8 

1,827 

391 

2.45 

3.^2

459

Sept.

1.3 

1.9 

2.2 

2.2 

2.4

2.4

1.5 

1.7 

3.1 

2.2

3.3

27 

4.8 

1.9 

10

8 

3.6 

2.4 

2.5 

2.5

2.0 

2.7 

2.7 

2.9 

2.2

2.7 

2.5 

2.4 

2.2 

2.5

Runoff in 

acre-feet

180 

1,440 

11,460

244,800

16,120 

15,060 

16,050 

51,250 

87,820 

108,700 

E4.030 

151 

222

332,500

Peak discharge.- Dec. 3 (5 a.m.) 3.770 sec. -ft.: May 25 (6 D.ra.) 3.660 sec. -ft.

b Stage-discharge relation affected by ice 

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
326 AMERICAN RIVER BASIN

South Fork of American River near Canino, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°42', In SWi sec. 25, T. 11 N.,

 R. 11 E., 300 feet upstream from Iowa Canyon Creek, 1 mile downstream from Intake 

of American River flume, and 3 miles northwest of Camino. Altitude of gage, about 

1,640 feet (fron topographic map).

Drainage area.- 497 square miles.

Records available.- October 1922 to September 1942.

Average discharge?- 20 years, 757 second-feet.

Extremes.- Maximum discharge during year, 13,300 second-feet Jan. 27 (gage height, 16.15 

feet); minimum, 5.5 second-feet Nov. 15.

1922-42: Maximum discharge, 34,400 second-feet Dec. 11, 1937 (gage height, 25.5 

feet, from floodmarks in gage house), from rating curve extended above 14,000 secondfeet on basis of velocity-area studies; minimum, 1.2 second-feet Aug. 24, 1931.

Remarks.- Records good. Flow regulated by four reservoirs and several diversions above 

station, (see records for American River flume and El Dorado Canal).

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by 

Pacific Gas & Electric Co. In connection with a Federal Power Commission project.

Rating table, water year 1941-42 (gage height, in ?aet, and discharge, in 

second-feet)

Oct. 1 to Apr. 14 Apr. 15 to Sept. 30

0.8 12 4.0 432 8.0 2,580 0.8 12 3.0 216 8.0 2,420 

1.0 21 4.5 588 9.0 3,380 1.0 20 3.5 304 9.0 3.220 

1.4 43 5.0 788 10 4,300 1.3 36 4.0 416 10 4.250 

1.8 74 5.5 1,030 U 5,350 1.6 56 4.5 560 11 5,350 

2.2 116 6.0 1,330 12 6,550 1.9 81 5.0 746 12.5 7,300 

2.6 170 6.5 1,580 14 9,400 2.2 109 6.0 1,200 

3.0 232 7.0 1,880 3.6 156 7.0 1,750 

3.5 320 7.5 2,230

Discharge, in second- feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

33

30 

32

40 

30

32 

36 

36 

34 

35

37 

43 

42

49 

39

38 

39 

35 

33 

33

52 

55 

19 

16 

19

29

34 

49 

39 

33 

25

Nov.

22 

1,190 

834 

390 

224

126 

92 

72 

58 

86

54 

S6 

68 

62 

15

72 

141 

112 

87 

60

48 

72 

31 

71 

78

78 

41 

30 

44 

89

Dec.

104 

645 

6,170 

1,200 

616

436

358 

274 

252

241

211 

174 

185 

274 

833

2,080 

1,120 

808 

882 

820

620 

493 

509 

387 

380

356 

369 

506 

554 

581 

475

Jan.

350 

273 

293 

302 

293

309 

473 

1,310 

1,100 

811

702 

682 

639 

630 

588

548 

496 

449 

433 

406

. 399 

422 

557 

1,430 

5,460

5,020

9,370 

5,340 

3,210 

2,340 

1,890

Feb. «

1,640 

1,830 

2,200 

2,530 

3,150

4,100 

3,900 

2,690 

2,130 

1,800

1,660 

1,530 

1,400 

1,280 

1,170

1,140 

1,080 

1,000 

945 

920

916 

887 

793 

858 

727

757 

731 

694

Month

Ooto 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri

June 

July 

Augu 

Sept

Ha

lendar year 1941 

ary

1. .................................. . .

ter year 1941-42 ...............

liar.

666 

737 

723 

740 

816

970 

906 

955 

1,080 

1,100

1,430 

1,560 

1,330 

1,200 

1,080

1,020 

975 

1,040 

975 

901

906 

935 

1,130 

1,130 

1,080

1,030 

1,020 

1,030 

1,100 

1,200 

1,410

Apr.

1,430 

1,630 

2,220 

3,360 

2,550

3,340 

2,150 

2,290 

2,530 

2,730

2,760 

2,890 

3,320 

4,000 

2,780

2,710 

2,450 

3,150 

2,270 

2,600

2,690 

3,250 

2,890 

2,380 

2,620

2,450 

2,580 

3,160 

1,840 

1,830

Secondfoot-days

1,096 

4,423 

22,907

339,968

46,514 

44,448 

32,155 

75,730 

100,720 

100,610 

21,156 

1,695 

1,256

452,710

Peak discharge.- Dec. 3 (8 a.m.) 10,600 sec. -ft.; Jan

May

3,010 

1,830 

1,890 

2,060 

3,100

2,420 

2,990 

3,480 

3,580 

3,830

 2,590 

2.240 

3,070 

2,190 

2,580

2,520 

2,430 

2,690 

3,260 

4,450

5,320 

5,920 

5,160 

5,080 

7,140

5,310 

3,550 

3,270 

2,710 

2,490 

2,560

Maximum

55 

1,190 

6,170

6,170

9,370 

4,100 

1,560 

4,000 

7,140 

5,270 

1,750 

76 

56

9,370

June

3,150 

3,710 

3,310 

3,860 

4,710

5,370 

4,780 

4,030 

4,650 

4,890

4,540 

4,170 

4,060 

4,220 

4,390

3,750 

3,110 

3,320 

2,980 

2,600

2,460 

2,510 

2,600 

2,540 

3,340

1,910 

1,640 

1,700 

1,740 

1,770

Minimum

16 

15 

104

15

273 

694 

666 

1,430 

1,830 

1,640 

98 

40 

16

15

July

,750 

,740 

,750 

,680 

,620

,430 

,300 

,220 

,020 

881

754 

624 

508 

435 

440

430 

432 

397 

370 

343

300 

285 

253 

240 

186

164 

153 

132 

122 

98 

100

Aug.

76 

70 

60 

58 

60

65 

60 

62 

62

61

59 

58 

52 

66 

68

63 

50 

45 

43 

44

48 

50 

55 

51 

46

46 

43 

40 

47 

40 

48

Sept.

45 

44

44 

41 

53

48 

43 

43 

42 

48

54 

54 

56 

52 

45

45 

50 

52 

48 

34

36 

35 

38 

36 

31

32 

34 

26 

16

u ._ Runoff in Mean acre-feet

35.4 2,170 

147 8,770 

739 45,440

931 674,300

1,500 92,260 

1,587 88,160 

1,037 63,780 

2,524 150,200 

3,249 199,800 

3,354 199,600 

683 41,960 

54.7 3,360 

41.9 2,490

1,240 898,000

. 27 (12 m. ) 13,300 sec. -ft.; Hay 26 (8:30

p.m.) 9,350 sec.-ft.

Time basis; Pacific 

To convert war time to

standard time prior to 3 a.m., Feb. 9, 1942; Pacific 

standard time, subtract 1 hour.

ar time thereafter.
AMERICAN RIVER BASIN 327

Echo Lake flume near Vade, Calif.

Location.- Water-stage recorder, lat. 38°50", long. 120°02', in IJWi sec. 6, T. 11 N., 

R. 18 E., half a mile downstream from intake and 2 miles northeast of Vade post 

office. Altitude of gage, about 7,500 feet (from topographic map).

Records available.- August 1923 to October 1942.

Extremes.- Maximum daily discharge during season, 24 second-feet Sept. 9-10, 14-24; no 

flow during most of year.

1923-42: Maximum daily discharge, 27 second-feet Sept. 13-15, 19, 1938; no flow 

during most of each year.

Remarks.- Records good. Flume diverts water from Echo Lake in Truckee River Basin, 

into basin of South Fork of American River for power development.

Cooperation.- Water-stage recorder graph furnished by Pacific Gas & Electric Co. in 

connection with a Federal Power Commission project.

Discharge, In second-feet, 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Month

September 1942 ...........................

Oc tober ..................................

The period. ............................

Sept.

0

0

0

0

0

0

0

14

24

24

23

23

23

24

24

24

24

24

24

24

24

24

24

24

23

23

22

21

20

8.5

-

Oct.

0

0

0

0

0

11

18

16

15

14

14

13

12

12

11

10

9

8

7.5

7

6

6

5

4.8

4.4

4.0

3.6

2.9

2.3

al.5

al.O

£££. "-* 

512.5 24

219.0 18

-

Minimum

0

0

-

u.ar. Runoff in Mean acre-feet

17.1 1,020

7.06 434

1,450

a No gage-height record; discharge computed on basis of observer's notes. 

Note.- No flow Hov. 20, 1941, to Sept. 7, 1942.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard tine, subtract 1 hour.
328 AMERICAN RIVER BASIN 

Medley Lakes Outlet near Vade, Calif.

Vade post office. .rAltitude of gage, about 8,100 feet (from topographic map). 

Drainage area.- 6.2 square miles.

Records available.- September 1922 to September 1942. 

Average discharge.- 20 years, 16.5 second-feet.

Extremes.- Maximum discharge during year, 132 second-feet June 17 (gage height, 2.74 

 feet); minimum, 0.4 second-foot July 30 to Aug. 4. hMtrtif 3 42 1922-42: Maximum discharge, 202 second-feet June 15, 16, 1929 (gage height, 6.<M

feet),' no flow at times in some years.

Sept. 30, 1942.

Water-stage recorder graph and one discharge measurement furnished by 

s I Electric Co. in connection with a Federal Power Commission project.

Rating table, ater year 1941-42, except periods of ice effect 

In feet, and discharge, in second-feet)

gage height,

0.2 

.4

2.4

6

12

1.2 

1.4 

1.6 

1.8 

2.0

19

29

40

52

67

2.2 

2.4 

2.7

100

128

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

3.8

3.S

3.7

3.7

3.7

3.5

3.5

3.4

3.2

3.2

3.1

3.1

3.2

3.1

3.0

2.8

2.7

2.5

-2.5

3.1

3.8

3.5

3.2

3.1

3.1

3.0

3.2

3.2

3.2

3.1

3.1

Nov.

19

46

28

24

22

22

22

21

20

20

20

19

19

19

18

19

19

18

17

17

16

15

15

15

15

14

13

12

11

11

-

Dec.

8

25

53

20

19

19

19

19

19

18

18

18

18

19

20

25

22

19

al8

al8

a!7

a!6

Jan.

' a!6

Feb.

 a!2

_

Mar.

' alO

Apr.

 all

(*)

-

May

b!2

b!2

b!2

b!2

12

13

b!3

b!4

b!4

15

b!5

b!5

b!6

16

b!6

16

16

17

19

b20

b22

b24

26

28

34

34

32

32

32

32

35

June

39

39

39

43

47

49

44

45

52

50

54

62

62

65

68

65

94

118

114

114

113

114

114

114

117

120

121

120

121

121

-

July

104

S4

84

77

58

56

56

49

42

42

22

1.5

1.2

1.9

3.8

3.2

2.5

2.3

2.3

2.0

1.7

1.5

1.3

1.0

.9

.8

.6

.5

.5

.4

.4

Aug.

0.4

.4

.4

.4

3.0

2.1

.8

6

3.1

.8

.7

15

65

64

62

62

61

61

61

71

99

99

98

97

96

95

94

92

96

106

105

Sept :

104

102

99

96

95

91

89

85

79

71

50

8

5.

5

4.

7

6

4.

4.

4.

4.

4.

4.

4.

4.

4.

3.

3.

1.

al.

-

Month

April. .......... ... ..... ...............

Mnv

Water year 1941-42 ...... ...............

Secondfoot-days

100.1

566

595

7,Bf!5.1

496

336

310

330

626

2,438

704.3

1,617.1

1,044.7

9,163.2

Maximum

3.8

46

53

117

_

_

_

_

35

121

104

106

104

121

Minimum

2.5

11

8

_

_

_

_

12

39

.4

.4

1.0

.4

Mean

3.23

18.9

19.2

21.6

16

12

10

11

20.2

81.3

22.7

52.2

34.8

25.1

Runoff in 

acre-feet

199

1,120

1,180

15,630

984

666

615

655

1,240

4,840

1,400

3,210

2,070

18,180

» Winter discharge measurement made on this day.

a No gage-height record; discharge computed on basis of record of gate opening at the dam, one 

discharge measurement, and records for Silver Lake Outlet near Kirkwood.

b Stage-discharge relation affected by snow.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war tijne to standard time, subtract 1 hour.
AMERICAN RIVER BASIN 329

Silver Lake Outlet near Klrkwood, Calif.

Location.- Water-stage recorder, lat. 38°40', long. 120°08', In 3Wi sec. 32, T. 10 N., 

R. 17 E., 1,000 feet downstream from Silver Lake Dam and 3 miles southwest of Klrkwood. 

Altitude of gage, about 7,200 feet (from topographic map).

Drainage area.- 14.9 square miles.

Records available.- September 1922 to September 1942.

Average discharge.- 20 years, 32.0 second-feet.

Extremes.- Maximum discharge during year, 332 second-feet June 6 (gage height, 4.00 feet); 

from rating curve extended above 190 second-feet; minimum, 0.2 second-foot Aug. 28-31 

and Sept. 29, 30.

1922-42: Maximum discharge, 504 second-feet Dec. 11, 1937 (gage height, 5.10 

feet), from rating curve extended above 190 second-feet; minimum, 0.1 second-foot during periods when reservoir gate was closed.

Remarks.- Records good. Contents In Silver Lake was 2,570 acre-feet on Sept. 30, 1941, 

and 3,600 acre-feet on Sept. 30, 1942. In addition to water released through dam and 

over spillway some escapes from Silver Lake through porous rock formation. The discharge at this station combined with seepage from Sliver Lake near Klrkwood (see 

following page) represents practically entire outflow from Silver Lake.

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by 

Pacific Gas £ Electric Co. In connection with a Federal Power Commission project.

Rating table, ater year 1941-42 (gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Oct. 10-24)

1.0 

1.2

2.0 

2.2 

2.4 

2.6

92

110

130

151

2.8 

3.0 

3.2 

3.4 

3.6 

3.8 

4.0

173

196

220

248

276

304

332

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

Z

4

i>

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

?,a

24

25

26

27

28S>9

30

31

Oct.

60

58

54

53

50

48

46

44

42

39

38

34

33

31

28

26

24

21

18

16

16

14

11

9.5

9

8

8

7

6.5

5.5

5.5

Nov.

6

12

14

14

13

13

12

11

10

9.5

9

8.5

8

7.5

7.5

7.5

7.5

7.5

6.5

6.5

5.5

5

4.5

4.2

3.9

3.6

3.3

3.0

3.3

4.2

-

Dec.

4.2

12

38

40

40

40

40

40

38

36

35

35

34

34

34

35

35

35

35

34

34

34

34

34

33

33

33

33

33

32

32

Jan.

32

31

31

31

31

30

30

30

29

29

28

28

28

28

28

28

28

27

27

27

26

26

26

26

26

27

28

28

28

28

28

Feb.

28

28

28

28

28

28

28

28

28

27

26

26

26

25

25

25

25

24

24

24

23

23

24

24

24

24

23

23

-

-

-

Month

December. .................................

March. .....................................

Water year 1941-42 ................. ...

Mar.

23

23

22

22

22

20

15

22

22

22

22

23

23

22

21

21

21

21

20

20

20

20

20

19

19

18

18

18

18

16

17

Apr.

17

18

19

21

22

23

23

23

24

24

25

26

27

27

28

28

28

28

28

29

30

31

32

34

35

39

63

79

70

61

~

Secondfoot days

1,039.2

18,149.4

May

5S

51

50

54

60

80

118

164

190

166

143

115

91

81

81

75

72

84

121

195

270

308

305

300

319

270

201

168

127

102

113

Maximum

40

23

319

June

172

227

240

261

298

318

308

291

301

308

273

214

241

262

280

131

29

9

34

69

100

us

124

147

151

122

115

118

116

101

-

Minimum

4.2

.2

July

97

114

124

133

138

134

127

119

102

66

38

23

19

6.5

5.5

5.5

6

6.5

6.5

4.8

2.6

2.4

2.2

2.0

1.4

1.0

2.2

3.3

3.0

2.4

1.8

Aug.

1.0

.8

1.4

2.6

1.8

1.4

.8

.7

.6

2.0

3.9

3.6

3.0

4.2

5

4.5

4.2

3.6

3.6

3.6

2.8

2.4

1.8

1.0

.7

.4

.3

.2

.2

.2

.2

Mean

33.5

44 5

41 9

49-7

Sept.

0.4

.5

.5

.5

.5

.5

.6

.8

.7

.7

50

90

89

87

94

96

94

90

87

85

91

97

97

88

65

58

57

30

.2

.2

-

Runoff in 

acre-feet

2,060

32 ' 220

35,990

Time basis; Pacific standard time prior to 2 a.m., Feb. 9. 1942; Pacific 

D convert war time to standard time, subtract 1 hour.

S303SO O - 43 - 22

time thereafter.
330 AMERICAN RIVER BASIN

Seepage from Silver Lake near Kirkwood, Calif.

Location.- Staff gage, lat. 38°40', long. 120°07', in SWi sec. 32, T. 10 N., R. 17 E., 

just upstream from road crossing and half a mile northeast of Silver Lake Dam. Altitude of gage, about 7,200 feet (from topographic map).

Records available.- October 1929 to September 1942.

Average discharge.- 13 years, 3.66 second-feet.

Extremes.- Maximum discharge observed during year, 18 second-feet July 27-30; no flow 

during most of year.

1929-42: Maximum discharge observed, 25 second-feet June 9, 1930; no flow during 

most of each year.

Remarks.- Records fair. Gage read once dally. No flow when Silver Lake gage height is 

below 14.0 feet. The flow through porous rock formation represented by these records 

is the largest amount of seepage from Sliver Lake; other seepage is negligible. The 

discharge at this station combined with that for Silver Lake Outlet near Kirkwood 

(see preceding page) represents practically entire outflow from Silver Lake.

Cooperation.- Gage-height record furnished by Pacific Gas & Electric Co. in connection 

with a Federal Power Commission project.

Rating tables, water year 1941-42 (gage height, In feet, and discharge, in second-feet) 

June 6728 July 29 to Sept. 30

1.0 

2.0 

3.6 

5.5

2.0

2.1

1.1

1.2

1.3

1.4

1.5

0 1.6

.4 1.7

1.0 1.8

2.0 1.9

4.0 2.0

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec. Jan.

v Month

Feb.

October. ...................................

November ...................................

December ...................................

Calendar year 1941 ......................

January. ...................................

February ...................................

March ............ ... . . ......

Apri

UAV

1.... ..................................

JuTy

August .....................................

September ..................................

Hater year 1941-42 ......................

Mar. Apr.

Secondfoot-days

0

0

0

1,305.4

0

0

0

0 

0

188.6

502

434

167.4

1,292.0

May

Maximum

0

0

0

20

0

0

0

0 

0

14

18

17

11

18

June

0

0

0

al

2.5

a2.5

a2.6

2.6

2.8

2.6

2.6

2.6

a2.8

a3.2

3.6

3.6

4.6

7

8

a9

alO

11

12

13

13

13

a!3

a 13

13

14

~

Minimum

0

0

0

0

0

0

0

0 

0

0

14

11

0

0

July

14

15

15

a!5

a!6

16

16

16

16

16

a!6

a!6

16

16

16

16

16

a!6

a!6

16

16

16

16

16

a!7

a!7

18

a!8

18

a!8

a!7

Aug.

a!7

a!6

16

a!6

a 16

a!6

a!6

a 16

a 16

16

a!6

a!6

a!5

15

a!5

alS

a!4

a!4

a!4

14

12

a!2

a 12

a!2

all

all

all

11

all

all

all

Mean

0

0

0

3.58

0

0

0

0 

0

6.29

16.2

14.0

5.58

3.54

Sept.

11

all

alO

10

alO

alO

10

alO

alO

a9.5

9.5

a9

a8

as

7

a6

a5

a4

a3

a2

1.8

1.6

.8

a. 2

0

0

0

0

0

0

Runoff in 

acre-feet

0

0

0

2,590

0

0

0

0 

0

374

996

861

332

2,560

a No gage-height record; discharge interpolated.

Time bails: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
AMERICAN RIVER BASIN 331

Silver Fork of South Fork cf American River near Kyburz, Calif.

Location.- Water-stage recorder, lat. 38°45', long. 120°17', in NEi sec. 34, T. 11 N., 

R. 15 E., 2 miles upstream from mouth and 2 miles a^'itheast of Kyburz. Altitude of 

gage, about 4,850 feet (from topographic map).

Drainage area.- 1CS square miles.

Records available.- August 1924 to September 1942.

Average discharge.- 10 years, 202 second-feet.

Extremes.- Maximum discharge during year, 2,680 second-feet Dec. 3 (gage height, 6.1 feet 

from flocdraarks in well); minimum, 13 second-feet Sept. 30 (gage height, 1.23 feet).

1924-42: Maximum discharge, 5,450 second-feet Dec. 11, 1937 (gage height, 6.30 

feet), from rating curve extended above 2,500 second-feet on basis of velocity-area 

studies; nin.inun, 3.4 secord-feet Dec. 6, 1929.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

Flow regulated by Twin Lakes (capacity, 21,250 acre-feet) and Silver Lake (capacity, 

8,900 acre-feet).

Cooperation.- Water-stage recorder grap:i and several discharge measurerients furnished by 

Pacific Gas <?-. Electric Co. in connection with a Federal Power Commission project.

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

1.2 11.5 2.4 134 4.5 1,090 

1.4 20 2.8 230 5.0 1,530 

1.6 32 3.2 354 5.5 2,030 

1.8 47 3.6 522 

2.0 68 4.0 738

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

122 

124 

124 

130 

130

128 

130 

130 

128 

132

132 

130 

128 

124 

130

128 

122 

122 

122 

120

118 

50 

44 

66 

69

74 

83 

82 

80 

79 

46

Nov.

37 

93 

68 

41 

33

30 

31 

45 

49 

49

83 

83 

83 

45 

22

22 

59 

69 

72 

28

80 

41 

88 

107 

109

110 

53 

43 

45 

59

Dec.

86 

a550 

a950 

a300 

a200

a!60 

a!40 

alSO 

allO 

alOO

a90 

80 

78 

82 

259

358 

204 

175 

187 

185

149 

136 

130 

124 

132

130 

132 

130 

128 

105 

107

Jan.

105 

105 

105 

105 

105

105 

118 

202 

170 

158

156 

156 

154 

149 

145

141 

134 

136 

130 

126

124 

124 

130 

182 

381

580 

1,160 

591 

404 

330 

291

Feb.

267 

258 

247 

238 

244

267 

244 

222 

214 

207

344

327 

317 

307 

304

294 

285 

279 

276 

273

270 

270 

264 

255 

258

264 

252 

241

Month

Octo 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Apri 

Hay.

June 

4uly 

Augu 

Sept

Wa

Lendar year 1941 

dry

1. .....................................

St. ....................................

ter year 1941-42 ...............

Mar.

241 

247 

250 

261 

294

317 

298 

330 

351 

354

381 

320 

282 

252 

238

222 

222 

230 

214 

204

214 

225 

230 

225 

212

202 

202 

212 

236 

261 

310

Apr.

323 

388 

603 

666 

463

420 

441 

494 

556 

622

628 

708 

828 

822 

606

601 

513 

476 

541 

628

720 

848 

726 

617 

702

678 

667 

551 

481 

454

Secondfoot-days

3,327 

1,777 

5,817

94,635

7,002 

7; 488 

8,037 

17,771 

27,275 

29,592 

8,619 

1,694 

2,243

120,642

Peak discharge.- May 25 (7 p.m.) 2,480 sec. -ft.

May

432 

441 

463 

522 

546

690 

882 

1,030 

1,030 

842

726 

612 

546 

565 

612

556

591 

702 

929 

1,270

1,490 

1,660 

1,460 

1,480 

1,880

1,290 

973 

875 

726 

684 

770

Maximum

132 

110 

950

1,650

1,160 

344 

381 

848 

1,880 

1,510 

672 

94 

118

1,880

June

936 

1,030 

1,020 

1,120 

1,310

1,510 

1,380 

1,300 

1,350 

1,390

1,360 

1,220 

1,220 

1,250 

1,300

1,110 

875 

822 

802 

738

726 

744 

770 

789 

751

628 

565 

546 

522 

508

Minimum

44 

22 

78

22

105 

205 

202 

323 

432 

508 

68 

27 

14

14

July

508 

556 

672 

612 

596

575 

517 

476 

424 

369

282 

230 

212 

158 

158

194 

202 

199 

194 

175

166 

163 

158 

147 

118

110 

105 

98 

94 

83 

68

Aug.

66 

64 

61 

59 

94

66

79 

88 

88 

88

88 

86 

49 

41 

41

41 

40 

54 

54 

52

41 

40 

39 

38 

37

36 

36 

35 

35 

31 

27

Sept.

26 

29 

36 

36 

37

38 

37 

36 

31 

30

41 

112 

109 

105 

116

118 

110 

105 

101 

98

98 

109 

110 

103 

85

105 

112 

112 

44 

14

 _ Runoff in Mean acre-fast

107 6,600 

59.2 3,520 

188 11,540

259 187,700

226 13,890 

267 14,850 

259 15,940 

592 35,250 

880 54,100 

986 58,690 

278 17,100 

54.6 3,360 

74.8 4,450

331 239,300

a No gage-height record; discharge computsd on basi 

American River near Kyburz.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacifii 

To convert war time to standard time, subtract 1 hour.

if records of total flow of South Fork

ar time thereafter
332 AMERICAN RIVER BASIN 

Twin Lakes outlet near Klrkwood, Calif.

Location.- Water-stage recorder and concrete control, lat. 38°42', long. 120°03', in 

SWt sec. 18, T. 10 H., R. 18 E., 500 feet downstream from main dam and outlet gate 

of Twin Lakes and 1 mile east of Kirkwood. Altitude of gage, about 7,900 feet (from 

topographic map).

Drainage area.- 12.4 square miles.

Records available.- September 1922 to September 1942 (October 1934 to September 1942 

include flow over Twin Lakes spillway).

Average discharge.- 20 years, 32.3 second-feet (including flow over Twin Lakes spillway).

Extremes.- Maximum combined daily discharge during year for outlet and spillway, 290 

second-feet (regulated) July 4; minimum, 1.3 second-feet May 13.

1922-42: Maximum combined daily discharge for outlet and spillway, that of July 

4, 1942; minimum, 0.2 second-foot (leakage) at times.

Remarks.- Records good. No diversions. Contents in Twin Lakes was 19,230 acre-feet 

on Sept. 30, 1941, and 19,900 acre-foot on Sept. 30, 1942. Flow over Twin Lakes 

spillway occurred June 12-28 and July 3-9, 29.

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4

5

6 

7 

S 

9 

10

11 

12 

13 

14 

15

16 

17 

IS 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

52 

56 

62 

66 

66

69 

72 

71 

76 

80

80 

80 

80 

83 

87

84 

86 

88 

88 

88

54 

13 

40 

49 

55

61 

66 

67 

67 

52 

17

Nov.

17 

7.5 

2.2 

1.5 

1.5

6.5 

22 

29 

29 

52

70 

70 

52 

1.5 

1.5

28 

55 

60 

22 

52

50 

55 

38 

94 

93

72 

31 

31 

31 

53

Dec.

39 

17 

17 

15 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12 

12

Jan.

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12

12 

12 

12 

12 

12 

12

Feb.

12 

12 

12 

12 

12

12 

12 

12 

12 

61

120 

126 

134 

134 

132

132 

130 

130 

126 

124

123 

122 

119 

119

117

117 

117 

116

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

Lendar year 1941 

ary

1. .....................................

ter year 1941-42 ...............

Mar.

116 

106 

109 

109 

106

106 

105 

104 

104 

102

78 

24 

25 

25 

25

25 

25 

25 

25 

25

24 

24 

23 

23

24

23 

24 

25 

25 

25 

25

Apr.

25 

25 

25 

25 

25

24 

25 

25 

25 

26

25 

24 

25 

25 

24

24 

25 

25 

25 

25

26 

IS 

1.5 

1.7 

2.0

1.7 

1-7 

1.5 

1.5 

1.5

Secondfoot-days

2,055 

1,178.2 

412

13,574.8

372 

2,407 

1,634 

554.1 

60.0 

5,232.8 

3,472 

708.0 

360.1

18,445.2

May

1.5 

1.5 

1.5 

1.7 

2.0

2.2

2.2 

2.2

2.0

1.7

1.5 

1.5 

1.3 

1.5 

1.5

1.5 

1.7 

2.2 

2.6 

2.6

2.4 

2.4 

2.2 

2.6 

2.6

2.0 

2.0 

1.7 

1.5 

2.0 

2.2

Maximum

88 

94 

39

218

12 

134 

116 

26 

2.6 

240 

290 

57 

53

290

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942

June

2.2 

2.0 

2.2 

2.4 

54

150 

162 

165 

168

170

170 

190 

240 

240 

240

240 

238 

240 

240 

240

240 

240 

240 

240 

240

225

202 

172 

139 

139

Minimum

13 

1.5 

12

1.4

12 

11 

23 

1.5 

1.3 

2.0 

23 

1.7 

1.7

1.3

July

156 

175 

199 

290 

242

217 

201 

190 

170 

146

110 

97 

70 

53 

61

103 

104 

106 

94 

85

84 

84 

84 

67 

51

51 

46 

43 

42 

28 

23

Aug.

23 

23

21

38 

46

38 

53 

56 

57 

57

57 

26 

4.2 

4.6 

5.5

6 

20 

26 

25 

15

13 

13 

13 

12 

12

12 

12 

11 

5 

2.0 

1.7

Mean

66.3 

39.3 

13.3

37.2

12.0

86.0 

52.7 

18.5 

1.94 

174 

112 

22.8 

12.0

50.5

Sept.

8.5 

17 

19 

19 

19

19 

18 

12

8 

8

5.5 

2.2 

2.2 

2.0

1.7

1.7 

2.0 

2.0 

2:0 

2.0

2.2 

2.2 

2.0 

5.5 

28

53 

53

40 

1.7 

1.7

Runoff in 

acre feet

4,080 

2,340 

817

26,940

738 

4,770 

3,240 

1,100 

119 

10,380 

6,890 

1,400 

714

36,590

; Pacific war time thereafter.

To convert war time to standard time, subtract 1 hour.
AMERICAN RIVER BASIN ^6 

El Dorado Canal near Kyburz, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°19', In SEi sec. 29, T. 11 N.,

 R. 15 E., 400 feet downstream from Intake and 2 Biles west of Kyburz. Altitude of 

gage, about 4,100 feet (from topographic map).

Records available.- October 1922 to September 1942. 

Average discharge.- 20 years, 99.7 second-feet.

Extrenes.- Maximum daily discharge during year, 158 second-feet July 26, Aug. 22, 23; 

minimum, 2.8 second-feet May 11-13.

1922-42: Maximum daily discharge, 165 second-feet June 24, 27, 28, and 30, 1938; 

no flow at times in most years.

Remarks.- Records excellent except those for period of ice effect, which are good. Canal 

diverts from left bank of South Fork of American River Just below Silver Fork of 

South Fork and 2 miles below Kyburz; water used for power and irrigation.

Cooperation.- Water-stage recorder graph and result of one discharge measurement furnished

 by Pacific Gas £ Klec'tric Co. in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

a

3

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

148

148

145

151

151

150

152

150

148

152

150

148

150

144

148

145

138

139

136

137

152

90

67

90

92

98

108

111

106

102

70

Nov.

62

146

144

149

129

111

105

115

114

109

143

145

142

103

71

86

122

128

130

70

116

86

121

146

147

149

95

76

80

120

-

Dec.

136

115

131

136

142

142

142

142

143

142

147

147

147

143

137

134

133

134

135

136

137

138

138

129

124

124

124

124

124

124

124

Jan.

b!20

b!04

b!02

blOO

b98

97

97

116

128

130

130

130

130

130

130

130

130

130

130

130

130

130

128

121

115

114

114

114

114

114

114

Feb.

114

114

115

115

114

114

114

115

114

114

115

115

115

115

115

114

114

114

114

115

115

114

114

114

114

114

114

114

-

-

-

Mar.

114

114

115

115

114

114

114

114

114

114

114

114

114

114

113

113

114

114

114

115

115

114

115

115

114

114

114

114

115

114

115

Apr.

115

114

115

114

114

114

114

115

114

114

114

115

116

114

113

114

114

114

115

115

114

115

114

114

115

114

114

113

114

114

-

Hay

114

114

114

114

49

3.0

4.1

3.0

3.0

3.0

2.8

2.8

2.8

42

112

107

108

109

112

107

115

116

113

114

112

108

114

113

114

114

116

June

118

119

117

119

120

115

115

115

116

119

121

125

127

139

138

140

146

148

147

145

145

145

146

145

146

147

147

147

147

147

-

July

147

147

146

145

147

148

149

154

156

156

156

156

156

156

156

156

156

156

156

156

156

156

156

156

156

158

157

155

156

152

133

Aug.

126

121

115

109

141

123

130

135

136

133

130

130

146

156

147

138

133

142

142

139

154

158

158

157

154

152

150

147

147

154

148

Sept.

143

143

152

152

148

144

140

136

150

146

138

157

156

150

150

157

157

150

143

140

140

150

150

146

128

146

156

156

81

46

-

Month

December ...................................

March.. .......... .........................

May. ............................... ......

Water year 1941-42 ......................

Secondfoot-days

4,016

3,460

4,176

3,700

3,540

2,475.5

4,356

45,361.5

Maximum

152

149

147

157

130

115

115

116

158

Minimum

67

62

115

3.2

97

113

2.8

46

2.8

Mean

130

115

135

126

119

114

114

79.9

141

142

124

Runoff in 

acre- feet

7,970

6,860

8,280

91,480

7,340

6,350

7,020

6,800

4,910

7,960

9,410

8,640

8,430

89,970

b Stage-discharge relation affected by ice.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
334 AMERICAN RIVER BASIN

Alder Creek near Whitehall, Calif.

Location.- Water-stage recorder, lat. 38°45', long. 120°22', in SWi se'c. 36, T. 11 N., 

R. 14 E., three-quarters of a mile upstream from mouth and 2 miles southeast of 

Whitehall. Altitude of gage, about 4,000 feet (from topographic map).

Drainage area.- 22.8 square miles.

Records available.- October 1922 to September 1942. Published records include diversions 

by pipe line.

Average discharge.- 20 years, 32.2 second-feet.

Extremes.- Maximum discharge during year, 851 second-feet Jan. 27 (gage height, 4.34 

feet), from rating curve extended above 410 second-feet by logarithmic plotting; 

minimum, 0.1 second-foot at times during October and November.

1922-42: Maximum discharge, 1,760 second-feet Mar. 25, 1928 (gage height, 7.1 

feet, from floodmarks), from rating curve extended above 240 second-feet; minimum, 

0.1 second-foot at times in 1924, 1926, 1931 1933-42. 

Extremes do not include flow in feeder pipe line.

Remarks.- Records good December to June, fair for remainder of year. Records (except 

extremes) include computed flow in feeder pipe line that diverted just above station 

into El Dorado Canal Oct. 3 to June 14.

Cooperation.- Water-stage recorder graph and one discharge measurement furnished by 

Pacific Gas & Electric Co. in connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

0.3

.3

,.3

.3

.3

.3

.3

.3

.3

.3

.5

.4

.4

.4

.4

.4

.5

.5

.5

.5

.7

.7

.7

.7

.7

.9

1.1

1.4

1.4

1.3

1.3

Nov.

1.7

20

3.9

2.5

2,5

1.9

1.9

1.9

1.9

1.9

1.7

1.7

1.7

1.7

1.7

2.4

2.6

2.4

2.3

2.2

2.2

2.2

2.1

1.9

1.9

1.9

1.9

1.9

1.9

2.2

-

Dec.

2.2

9.5

96

29

19

14

11

8

7

7

7

7

7

8

29

55

39

36

37

38

32

27

26

20

19

17

16

16

17

13

14

Jan.

14

14

14

14

14

14

16

47

39

36

35

35

35

35

35

34

32

31

29

27

28

30

36

98

339

409

632

391

265

201

160

Feb.

132

132

124

120

138

162

148

130

116

101

90

82

74

67

64

60

55

53

49

46

46

43

37

41

35

35

37

35

-

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January. ...................................

February ...................................

March. .....................................

April ......................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

37

38

38

41

47

53

54

61

67

71

95

105

98

92

82

77

73

71

67

61

64

67

68

68

65

64

63

65

71

77

87

Apr.

93

105

166

226

205

181

172

172

181

205

205

208

231

289

242

228

200

181

179

181

193

213

200

183

183

174

168

149

137

130

~

Secondfoot-days

18.4

80.4

682.7

15,739.6

3,139

2,252

2,087

5,580

5,444

2,097

230.4

19.7

7.9

21,638.5

May

126

123

128

134

137

145

164

179

186

171

162

145

136

135

166

163

166

172

186

213

237

239

221

205

295

265

210

186

161

149

139

Maximum

1.4

20

96

219

632

162

105

289

295

135

19

1.6

.4

632

June

135

134

12S

125

126

125

114

105

100

97

89

82

77

73

69

62

56

50

46

43

38

33

30

28

26

24

22

21

20

19

-

Minimum

0.3

1.7

2.2

.2

14

35

37

93

123

19

1.6

.3

.2

.2

July

19

17

16

13

13

12

12

11

11

10

9

8

7

7

7

6.5

6

6

5.5

4.9

4.5

3.6

3.6

3.3

2.8

2.2

2.2

1,9

1.9

1.9

1.6

Aug.

1.6

1.6

1.4

1.1

.8

.8

.8

.8

.6

.6

.6

.6

.6

.6

.6

.6

.5

.5

.4

.4

.4

.4

.4

.4

.4

.4

.3

.3

.4

.4

.4

Mean

0.59

2.68

22.0

43.1

101

80.4

67.3

186

176

69.9

7.43

.64

.26

59.3

Sept.

0.3

.3

.3

.3

.3

.3

.3

.3

.3

.3

.4

.4

.3

.3

.3

.3

.3

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

.2

~

Runoff in 

acre- feet

36

159

1,350

31,210

6,230

4,470

4,140

11,070

10,800

4,160

457

39

16

42,930

Peak dlachargt..- Jan. 25 (5 p.m.) 406 aeo.-ft.; Jan. 27 (10 a.m.) 851 aec.-ft.; May 25 (6 p.m.) 

391 aec.-ft.Peak dischargea do not include flow In feeder pipe line.

Hate.- Water below intake Oct. 3-8, 26, 27, 31, Nov. 7-15, 24-29; discharge in creek estimated. 

Stage-discharge relation affected by ice Jan. 2-5.
AMERICAN RIVER BASIN 335 

Silver Creek at Union Villey, Calif.

Location.- Water-stage recorder, lat. 38°52', long. 120°26', in SEi sec. 20, T. 12 II.,

 ft. 14 E 1 mile downstream from confluence of North and Middle Forks, near lower 

end of Union Valley. Altitude of gage, about 4,530 feet (from topographic nap).

grainar.e area.- 62.7 square miles.

Records available.- October 1924 to September 1942.

Average discharge.- 17 years (1924-27, 1928-42), 197 second-feet.

Extremes.- Maximum discharge during year, 3,860 second-feet Dec. 3 (gage height, 9.51

 feet): minimum, 5.5 second-feet Oct. 2-5.

1924-42- Maximum discharge, 8,560 second-feet Dec. 11, 19o7 (gage height, 15.<d8 

feet), from rating curve extended above 2,200 second-feet on basis of velocity-area 

studies; minimum, 1.9 second-feet Aug. 27, 28, 1931.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

No diversion above station.

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

Oct. 1 to Jan. 27 Jan. 28 to Sept. 30

0.0 0.0 1.4 65 3.6 534 0.0 0.0 1.4 68 3.6 480 

9 7 i.R 87 4.0 668 .2 .7 1.6 91 4.0 604 

4 2J4 18 114 4.5 856 .4 2.4 1.8 117 4.5 786 

6 72 20 144 5.0 1,070 .6 7.2 2.0 144 5.0 1,000 

8 17 2.4 216 5.5 1,310 .8 17 2.4 210 5.5 1,250 

lio 31 28 304 6.0 1 580 1.0 32 2.8 284 6.0 1,500 

1.2 46 Z.Z 410 7.0 2|l60 1.2 49 3.2 372 6.8 1,980

Discharge, in second feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

6 

5.5 

5.5 

5.5 

5.5

6 

6.5 

6.5 

6.5 

6.5

6.5

7 

9.5 

9 

8

7.5 

7 

7 

7 

7.5

13 

14 

12 

11 

12

10 

15 

15 

13 

11 

11

Nov.

24 

618 

2£7 

107 

58

41 

33 

28 

25 

23

21 

20 

19 

18 

18

52 

63 

37 

29 

27

23 

23 

20 

22 

22

22 

22 

22

27 

68

Dec.

49 

788 

1,920 

278 

176

149 

117 

100 

87 

85

73 

68 

66 

85 

526

659 

299 

243 

297 

267

187 

157 

146 

138 

134

128 

121 

121 

124 

120 

118

Jan.

114 

111 

allO 

allO 

allO

allO 

128 

492 

374 

247

216 

196 

alSO 

a!70 

a!60

a!50 

a!45 

a!40 

al35 

alSO

125 

131 

146 

278 

938

1,050 

1,830 

767 

466 

362 

313

Month

Octo 

Nove 

Dace

Ca

Janu 

Febr 

Hare 

Apri

MAV

June 

July 

Augu 

Sept

Wa

Feb.

290 

311 

317 

300 

367

> a530 

> a270 

\ a!90

\ a!40

ber.. ..................................

mber. ........................... . . ...

mber. ..........

lendar year 1941 

ary . . .

uary. ............................ .....

h. .....................................

1.. ....................................

St. ................................. . .

tar year 1941-42 ...............

Peak discharge.- Dec. 3 (5 a.m. ) 3,860 sec

Mar.

 v

 a!70

Apr.

 \ 

 a700

j

692

818 

678 

554 

670

607 

621 

469 

403 

393

May

393 

375 

421 

480 

511

681 

860 

928 

847 

618

529 

469 

444 

494 

587

514 

548 

688 

889 

1,240

1,430 

1,490 

1,160 

1,270 

1,970

1,080 

748 

699 

560 

523 

607

fSays -"1 

273.0 15 

1,759 618 

7,826 1,920

86,548.0 1,920

9,934 1,830 

7,655 

5,270 

19,905 

24,053 1,970 

22,692 1,250 

4,538 401 

435.0 28 

, 221.5 9.5

104,561.5 1,970

June

826 

864 

834 

1,020 

1,240

1,250 

973 

932 

1,120 

1,080

968 

910 

897 

968 

910

752 

737 

721 

631 

554

538 

560 

570 

523 

449

355 

330 

382 

395 

403

Minimum

5.5

18 

49

5.5

110

375 

330 

30 

9 

6.5

5.5

-ft.; Jan. 27 (11 a.m.) 2,630 se

July

401 

367 

337 

333 

302

264

250 

219 

178 

160

162 

141 

129 

121 

126

122 

110 

96 

95 

87

78 

68 

63 

55 

50

45 

42 

38 

35 

34 

30

Aug.

28 

26 

24 

23 

20

20 

18 

17 

16 

15

15 

15 

14 

14 

13

12 

12 

11 

10 

10

10 

9.5 

9.5 

9 

9

9 

9 

9 

9.5 

9.5 

9

Sept.

9 

8.5 

8.5 

8 

8

7.5 

7.5 

7.5 

8 

9

9.5 

9 

8 

7.5 

7

7 

7 

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

Mean Runof * if 

acre-feet

8 . 81 541 

58. & 3,490 

252 -15,520

237 171,700

320 19,700 

273 15,18"0 

170 10,450 

664 39,480 

776 47,710 

756 45,010 

146 9,000 

14.0 863 

7.38 439

286 207,400

c.-ft.; May 25 (4 p.m.)

BC.-I

a Ho gage-height record; discharge computed on basis of records for stations near Placervllle and 

on South Pork of Silver Creek near Ice House.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
_ 336 AMERICAN RIVER BASIN 

Silver Creek near Placerville, Calif.

Location.- Water-stage recorder, lat. 38°47', long. 120°35', in SWi sec. 13, T. 11 N.,

R. 12 E., a quarter of a mile upstream- from mouth and 12 miles northeast of Placerville. 

Altitude of gage, about 2,250 feet (from topographic map).

Drainage area.- 176 square miles.

Records available.- December 1921 to September 1942.

Average discharge.- 20 years (1922-42), 380 second-feet.

Extremes.- Maximum discharge during year, 5,790 second-feet Jan. 27 (gage height, 9.24 

feet); minimum, 28 second-feet Nov. 24, 27-28.

1921-42: Maximum discharge, 14,600 second-feet Dec. 11, 1937 (gage height, 13.8 

feet), from rating curve extended above 3,800 second-feet on basis of velocity-area 

studies; minimum, 5.5 second-feet Sept. 18, 1934.

Remarks.- Records good except those for period of no gage-height record, which are fair. 

No diversion above station.

Rating table, water year 1941-42 (gage height, In feet, and discharge, 

In second-feet)

1.6 27 2.6 146 4.2 648 6.5 2,220 

1.8 -42 2.8 188 4.6 846 7.0 2,730 

2.0 61 3.0 236 5.0 1,080 7.5 3,300 

2.2 84 3.4 348 5.5 1,410 8.0 3,950 

2.4 112 3.8 484 6.0 1,780 8.5 4,660

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

41 

40 

40 

40 

40

40 

40 

39 

38

37

36

37 

42 

40 

38

34 

33 

32 

30 

33

40 

41 

41 

48 

44

40 

44 

50 

46 

43 

40

Nov.

46 

780 

546 

307 

175

123

102 

89 

83 

76

73 

69 

66 

65 

64

66 

102 

83 

56 

43

40 

33 

33 

28 

30

30 

28 

a28 

a35 

61

Dec.

a80 

a.700 

a3,OOO 

a8 00 

a450

\

> a400 

>

Jan.

> a400

484 

455 

441 

424 

407

394 

367 

336 

324 

304

290 

268 

333 

542 

2,420

2,430 

4,090 

2,240 

1,440 

1,090 

912

Feb.

808 

884 

1,040 

1,110 

1,400

1,820 

1,680 

1,200 

1,010 

857

757 

671 

622 

570 

538

518 

526 

480 

455 

438

434 

431 

394 

414 

380

383 

380 

370

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

Hay.

June 

July 

Augu 

Sept

Wa

mber. ..................................

lendar year 1941 

ary

ter year 1941-42 ......................

Mar.

374 

380 

394 

400 

424

484 

495 

488 

530 

542

723 

824 

699 

622 

562

534 

514 

526 

507 

484

484 

507 

522 

511 

473

462 

455 

470 

511 

566 

685

Apr.

666 

772 

1,140 

1,580 

1,200

1,040 

984 

1,060 

1,190 

1,300

1,280 

1,350 

1,560 

1,680 

1,280

1,240 

1,100 

1,010 

1,070 

1,240

1,320 

1,580 

,400 

,150 

,300

,210 

,280 

,050 

889 

889

Secondfoot-days

1,221 

3,360 

15,430

171,688

23,991 

20,570 

16,152 

35,810 

46,537 

43,029 

11,362 

2,151 

1,403

221,016

Peak discharge.- Jan. 27 (1 p.m.) 5.790 sec. -ft.; May

May

924 

873 

918 

1,020 

1,040

1,240 

1,520 

1,670 

1,670 

1,300

1,160 

1,020 

972 

1,030 

1,260

1,190 

1,200 

1,340 

1,560 

2,000

2,350 

2,580 

2,180 

2,160 

3,230

2,420 

1,620 

1,510 

1,260 

1,150 

1,170

Maximum

50 

780 

3,000

3,000

4,090 

1,820 

824 

1,680 

3,230 

2,220 

857 

110 

51

4,090

25 (9 p.m.

June

1,480 

1,680 

1,480 

1,700 

2,110

2,220 

1,950 

1,640 

1,910 

2,020

1,800 

1,720 

1,660 

1,760 

1,740

1,520 

1,410 

1,420 

1,300 

1,140

1,070 

1,09O 

1,150 

1,120 

1,010

808 

694 

767 

819 

841

Minimum

30 

28 

80

28

268 

370 

374 

666 

873 

694 

115 

51 

44

28

July

857 

835 

772 

742 

737

644 

596 

550 

455 

407

400 

361 

333 

310 

318

312 

290 

257 

249 

236

217 

195 

184 

170 

154

146 

141 

132 

125 

122 

115

Aug.

110 

106 

100

96 

92

88 

85 

83 

80

78

76 

74 

72 

71 

71

65 

62 

60 

58 

56

55 

53 

52 

51 

51

51 

51

51 

51 

51 

51

Sept.

51 

50 

50 

50 

49

49 

48 

46 

47 

48

51 

49 

46 

46

45

45 

44 

44 

44 

44

45 

46 

46 

46 

46

46 

46 

46 

46 

44

Moan Runoff in Mean acre-feet

39.4 2,420 

112 6,660 

498 30,600

470 340,500

774 47,590 

735 40,800 

521 32,040 

1,194 71,030 

1,501 92,300 

1,434 85,350 

367 22,540 

69.4 4,270 

46.8 2,780

606 438,400

4,740 sec. -ft.

near Camlno and Sliver Creek at Union Valley.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
AMERICAN RIVER BASIN 337

South Fork of Silver Creek near Ice House, Calif.

Location.- Water-stage recorder, lat. 38°49', long. 120°22', In SWi sec. 1, T. 11 M., 

R- 14 E., half a mile upstream from Peavlne Creek, li|- miles northeast of Ice Hou^e, 

and 6 miles northeast of Rlverton. Altitude of gage, about 5,300 feet (from topographic map). v

Drainage area.- 28.4 square miles.

Records available.- October 1924 to September 1942. July to October 1922 at site 1 niie 

upstream.

Average discharge.- 18 years, 69.7 second-feet.

Extremes.- Maximum discharge during year, 959 second-feet Dec. 3 (gage height, 4.08 feet)- 

minimum, 1.4 second-feet Sept. 19-30.

1924-42: Maximum discharge, 2,200 second-feet Dec. 11, 1937 (gage height, 5.80 

feet), from rating curve extended above 540 second-feet on basis of velocity-area 

studies; minimum, 0.1 second-foot Aug. 21 to Sept. 6, 1931.

Remarks.- Records good except those for Oct. 7-29, Dec. 31 to Feb. 14, and those below 

3 second-feet, which are fair. No diversion.

Rating tables, water year 1941-42, except period of Ice effect, (gage 

height. In feet, and discharge, In aecond-feet)

Oct.

1.0 

3.0 

6.5

1 to May 25 

1.0 38

1.2 

1.4 

1.6 

1.8

SI 

116 

158

2.0

2.4

2.5 

3.2 

3.6

206

312

428

562

718

tlay 26 to Sept. 30

0.3 0.5 

.'4 2.'5 

.5 6.5

.6 11

Note.- Same as preceding table above 0.6 

foot.

Discharge, in second-feet, watei year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2.6

2.4

2.2

2.2

2.0

2.0 "

> 42.0

-

>a4.0

4.4

4.8

Nov.

7

229

137

73

42

30

23

21

18

16

14

13

11

11

9.5

18

20

13

12

13

12

11

10

10

9.5

9

9

9

10

19

-

Dec.

18

224

582

126

73

58

4S

42

3S

33

29

26

24

26

86

141

81

65

70

68

55

45

42

33

34

28

24

22

25

21

b20

Jan.

b20

b45

44

44

44

42

41

40

37

36

44

74

126

152

258

177

122

92

77

Feb.

71

70

68

68

S3

S3

67

65

58

54

51

49

46

45

46

44

44

40

39

38

3S

37

38

35

36

3S

36

36

-

-

-

Mar.

36

37

38

39

44

50

50

57

63

64

75

68

58

52

50

47

45

47

45

44

46

49

51

49

46

44

44

47

55

67

77

Apr.

SI

95

137

158

122

105

103

118

139

154

165

182

229

209

156

154

131

11S

133

177

204

263

229

192

224

211

222

170

137

126

-

May

120

114

131

145

158

211

290

343

34S

258

211

175

154

168

199

172

189

224

315

454

544

598

512

530

628

42S

329

298

237

222

263

June

368

395

392

4S2

566

591

506

492

558

555

523

502

506

533

502

447

428

434

389

343

334

351

357

329

276

216

196

219

240

250

-

July

£53

250

232

232

216

1S7

1S2

158

US

106

108

94

SI

77

91

92

80

68

68

65

60

60

58

51

46

44

39

36

32

29

26

Aug.

24

21

19

18

18

17

16

15

15

13

13

12

13

16

12

11

9

8

7

6.5

6.5

6

5.5

.5

.9

.9

.5

.5

.5

.5

.5

Sept.

4.1

4.1

4.1

3.7

3.7

3.7

3.7

3.3

3.7

4.1

4.5

3.3

2.9

2.5

2.5

2.2

1.9

1.6

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

-

Month

December ...................................

March. .....................................

May. .......................................

July. ......................................

September. .................................

Water year 1941-42 ......................

Secondfoot-days

S6.6

839.0

2,207

1,905

1,423

1,584

12,280

3,239

339.3

76.4

37,791.3

Maximum

4.8

229

582

258

83

77

591

253

24

4.5

628

Minimum

2.0

7

IS

_

35

36

196

26

4.5

1.4

1.4

Mean

2.79

2S.O

71.2

61.5

51.1

104

10.9

2.55

104

Runoff in 

acre-feet

172

1,660

4,3SO

3,780

2,820

3,140

6,420

673

152

74,960

Peak discharge.- Dec. 3 (5 a.m.) 959 sec.-ft.; May 25 (5 p.m.) 764 sec.-ft. 

a Ho gage-height record; discharge computed on basis of records for nearby stations, 

b Stage-discharge relation affected by ice.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
338 AMERICAN RIVER BASIN 

American River flume near Camlno, Calif.

Location.- Water-stage recorder, lat. 38°46', long. 120°42', In SWi sec. 25, T. 11 N., 

 R. il K. t 300 feet upstream from Iowa Canyon Creek, 1 mile downstream from diversion

dam, and 3 miles northwest of Camlno. Altitude of gage, about 1,710 feet (from

topographic map).

Records' available.- November 1922 to September 1942. 

Average discharge.- 20 years, 100 second-feet.

Extremes.- Maximum dally discharge during year, 189 second-feet Aug. 15, 16; no flow 

Mar. 24 to Apr. 11.

1922-42: Maximum dally discharge, that of Aug. 15, 16, 1942; no flow at times In 

each year.

Remarks.- Records excellent. ' Flume diverts water from South Fork of American River In 

SWt sec. 24, T. 11 N., R. 11 E., which Is used to develop power In SWi 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 and results of one discharge measurement furnlshea by Pacific Gas & Electric Co. In connection with a Federal Power Commission 

project.

Discharge, in second feet, water year October 1941 to September 1942

Day

1- 

2 

3 

4 

5

6 

7 

8 

9 

10

11 

12 

13 

14 

16

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

148 

148 

154 

157 

148

150 

152 

152 

150 

152

150 

153 

161 

156 

151

152 

152 

152 

148 

144

157 

156 

158 

140 

144

138 

148 

153 

146 

146 

142

Nov.

133 

156 

155 

158 

160

162 

158 

156 

157 

164

148 

165 

158 

155 

136

154 

164 

162 

156 

154

146 

158 

136 

154 

160

160 

155 

148 

160 

164

Dec.

165 

164 

164 

162 

164

165 

164 

164 

165 

169

170 

169 

169 

169 

169

167 

167 

167 

169 

165

164 

166 

166 

166 

166

166

166 

166 

167 

167 

166

Jan.

166 

165 

165 

166 

166

166 

166 

165 

165 

165

166 

166 

166 

162 

165

165 

166 

164 

166 

168

168 

167 

167 

167 

167

166 

166 

166 

157 

156 

166

Feb.

164 

164 

164 

164 

162

162 

162 

164 

164 

165

162 

166 

164 

162 

162

162 

162 

162 

162 

162

162 

162 

162 

162 

162

162 

162 

162

Month

Octo 

Nova 

Dece

Ca

Jann 

Febr 

Maro 

Apri 

May.

June 

July 

Augu 

Sept

ffa

lendar year 194 

ary

h. .....................................

ember. .................................

ter year 1941-42 ......................

Mar.

162 

162 

162 

162 

162

162 

162 

162 

162 

163

164 

164 

163 

162 

162

162 

162 

161 

162 

162

162 

162 

47

0 

0

0 

0 

0 

0 

0 

0

Apr.

0 

0 

0 

0 

0

0 

0 

0 

0 

0

0 

7 

14 

14 

14

14 

17 

19 

19 

19

19 

39 

57 

72 

88

112 

128 

132 

140 

156

Secondfoot-days

4,628 

4,652 

5,153

54,025

5,118 

4,557 

3,616 

1,080 

5,409 

5,286 

5,515 

5,062 

4,173

54,249

May

162 

164 

170 

175 

176

179 

181 

179 

179 

176

176 

177 

179 

181 

181

176 

176 

176 

176 

174

172 

173 

174 

174 

174

171 

172 

173 

171 

171 

171

Maximum

157 

165 

170

183

168 

166 

164 

156 

181 

179 

182 

189 

156

189

June

171 

171 

171 

171 

172

172 

171 

171 

175 

178

178 

178 

179 

179 

179

177 

179 

179 

179 

178

178 

177 

179 

179 

179

177 

177 

177 

178 

177

Minimum

138 

133 

162

0

155 

162 

0 

0 

162 

171 

170 

140 

83

0

July

178 

178 

178 

179 

180

ISO 

179 

179 

179 

179

179 

177 

177 

17S 

179

180 

182 

182 

182 

180

180 

179 

179 

177 

176

174 

171 

171 

177 

176 

170

Aug.

172 

168 

169 

169 

168

169 

167 

171 

164 

168

16S 

176 

184 

182 

1S9

189 

175 

171 

166 

166

158 

152 

149 

148 

143

147 

142 

140 

145 

142 

145

Sept.

135 

151 

147 

142 

141

140 

135 

139 

141 

147

147 

140 

156 

147 

145

144 

147 

148 

146 

133

136 

139 

136 

148 

139

140

131 

136 

114 

83

Mean Runo" in 

acre- feet

149 9,180 

155 9,230 

166 10,220

148 107,200

165 10,150 

163 9,040 

117 7,170 

36.0 2,140 

174 10,730 

176 10,480 

178 10,940 

163 10,040 

139 8,280

149 107,600

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.

To convert war time to standard time, subtract 1 hour
COLUSA AND YOLO BASINS 339

Knights Landing Ridge Cut at Knights Landing, Calif.

Location.- Water-stage recorder, lat. 38°48'00", long. 121°43'25", in NWi sec. 14, T. 11 

N., R. 2 E., at Knights Landing. Auxiliary gage Is water-stage recorder at station 

on Yolo bypass near Woodland. Zero of both gages is set to datum of Corps of 

Engineers, U. 3. Army.

Records available.- October 1940 to September 1942 In reports of Geological Survey.

1933-33 (low-water periods only) and 1939-42 In reports of Division of Water Resources, 

Department of Public Works, State of California.

Extremes.- Maximum discharge during year, 13,600 second-feet Feb. 10 (gage height, 36.80 

feet); no flow Oct. 5 to Dec. 2.

1941-42: Maximum discharge, that of Feb. 10, 1942; no flow at times.

Remarks.- Records fair except those for periods of backwater, which are poor. Flow Is 

from Colusa Basin Into Yolo bypass. Discharge during periods of backwater from Yolo 

bypass computed by using fall as determined by auxiliary gage as a factor.

Cooperation.- Records collected and prepared In cooperation with Division of Water 

Resources, Department of Public Works, State of California.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

20

17

12

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

Nov. Dec.

0

0

1

40

104

246

288

279

111

46

22

6

1

3

40

312

810

162

311

510

500

547

374

260

139

156

476

1,000

2,250

2,180

2,180

Jan.

2,450

2,450

2,740

2,740

2,740

2,360

1,910

1,510

1,270

1,150

980

798

690

615

545

510

458

436

405

377

346

240

419

1,120

1,020

538

666

630

1,960

3,530

4,550

Feb.

5,340

5,250

4,940

4,180

3,570

4,550

5,250

8,640

12,600

13 , 600

11,100

9,800

8,900

8,060

7,110

6,4SO

5,850

5,220

4,590

3,750

3,080

2,600

2,050

1,610

1,170

848

624

540

-

-

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January ........... .... ...................

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September ..................................

Water year 1941-42 ......................

Mar.

495

467

462

533

517

517

441

437

433

433

630

819

840

756

1,710

2,180

2, ISO

2,180

1,920

1,530

1,120

798

651

588

533

483

441

420

404

384

348

Apr.

352

324

320

352

546

965

860

920

860

760

850

940

990

880

420

740

760

760

710

690

650

' 630

550

480

510

540

590

588

529

470

~

Secondfoot-days

51

0

13,354

589,675

42,153

151,302

25,650

19,536

15,134

8,743

2,005

1,519

885

280,332

May

521

609

651

651

567

487

462

420

412

420

420

420

441

445

458

470

491

533

529

491

441

462

491

504

483

470

491

470

437

462

525

Maximum

20

0

2,250

12,600

4,550

13,600

2,180

990

651

609

72

61

70

13,600

June

462

504

529

533

546

583

609

588

588

546

567

546

546

454

289

194

124

70

42

37

40

36

36

46

50

47

39

34

29

24

-

Minimum

0

0

0

0

240

540

348

320

412

24

24

36

11

0

July

24

44

60

62

68

68

66

70

70

66

66

66

61

61

63

63

64

64

68

68

70

70

70

70

70

72

72

70

68

68

63

Aug.

56

54

52

52

52

52

52

54

56

56

55

55

58

56

56

57

58

61

57

54

46

37

36

36

36

36

36

36

37

39

41

Mean

1.6

0

431

1,616

1,360

5,404

827

651

488

291

64.7

49.0

29.5

768

Sept.

41

42

43

45

46

48

48

52

59

70

63

35

22

IS

17

16

16

16

14

12

12

14

16

17

19

20

21

18

14

11

-

Runoff in 

acre- feet

101

0

26,490

1,170,000

83,610

300,100

50,880

38,750

30,020

17,340

3,980

3,010

1,760

556,000

Note.- Backwater from Yolo bypass Dec. 18 to Jan. 2, Jan 

7-12, 14-27.

Time basis; Pacific standard time prior to 2 a.m., Feb. 

To convert war time to standard timfl, subtract 1 hour.

. 24 to Feb. 8, Feb. 21 to Mar. 3, Apr 

9, 1942; Pacific war time thereafter.
340 COLUSA AIID YOLO BASINS

Clear Lake at Lakeport, Calif.

Location.- Staff gage, lat. 39°03', long. 122°55', in SEi sec. 24, T. 14 N., R. 10 W., 

at municipal wharf on north side of Third Street in Lakeport. Datum of gage Is 

1,313.59 feet above mean sea level, datum of 1929.

Drainage area.- 420 square miles, including water surface of lake (65 square miles). 

Records available.- 1874-1900 (incomplete), January 1913 to September 1942.

Extremes.- Maximum gage height observed during year, 9.60 feet Feb. 8; miniimsn observed, 

2.62 feet Sept. 30.

1913-42: Maximum gage height observed, 11.12 feet Jan. 28, 1914; minimum observed, 

-3.50 feet Sept. 24-27, 1920.

Remarks.- This natural lake is regulated by a concrete over-flow dam at outlet, completed 

In 1915. Capacity between gage heights 0.00 and 7.56 feet (limits stipulated by court 

decree) about 319,000 acre-feet. Water is released down natural channel of Cache 

Creek from which it is diverted for irrigation.

Cooperation.- Gage-height record furnished by Clear Lake Water Co.

Gage height at 10 a.m., in feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

3.20

3.20

3.20

3.15

3.10

3.10

3.10

3.08

3.08

3.08

3.08

3.08

3.06

3.02

3.02

3.02

3.00

3.00

3.00

3.00

3.00

3.00

3.00

3.00

3.00

3.00

3.00

3.00

3.00

3.00

3.00

Nov.

3.00

3.00

3.05

3.06

3.10

3.10

3.10

3.10

3.10

3.10

3.10

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.12

3.10

3.12

-

Dec.

3.12

3.20

3.28

3.38

3.40

3.48

3.48

3.50

3.50

3.50

3.50

3.50

3.50

3.56

3.90

4.26

4.66

4.90

5.10

5.18

5.40

5.42

5.48

5.50

5.58

5.68

5.70

5.88

6.00

6.15

6.20

Jan.

6.20

6.12

6.10

6.05

6.00

5.95

5.95

6.20

6.28

6.22

6.20

6.15

6.10

6.08

6.08

6.08

6.00

6.00

6.00

6.00

6.00

6.16

6,40

6.65

7.00

7.08

7.25

7.25

7.35

7.35

7.35

Feb.

7.35

7.45

7.52

7.85

8.20

9.10

9.48

9.60

9.58

9.55

9.40

9.40

9.20

9.02

8.90

8.60

S.65

6.50

6.40

8.26

8.15

8.00

7.90

7.78

7.68

7.56

7.46

7.35

-

-

-

Mar.

.25

.15

.15

.12

.10

.10

.10

.10

.10

.10

.30

.30

.32

.30

.38

.30

.20

.16

.18

.16

.20

.20

.25

.25

.30

.30

.35

.32

.32

.32

7.35

Apr.

.38

.40

.40

.40

.70

.60

.56

.56

.50

.60

.62

.68

.68

.60

.75

.78

.70

.65

.60

.56

.46

.45

.46

.48

.48

.48

.52

.52

.50

.50

-

Hay

7.48

7.48

7.45

7.45

7.45

7.49

7.49

7.48

7.48

7.48

7.48

7.48

7.48

7.48

7.40

7.35

7.30

7.28

7.20

7.18

7.12

7.05

7.00

6.90

6.80

6.80

6.80

6.80

6.80

6.80

6.80

June

6.80

6.80

6.80

6.80

6.80

6.80

6.80

6.78

6.72

6.72

6.70

6.70

6.68

6.60

6.58

6.55

6.52

6.50

6.45

6.38

6.35

6.32

6.25

6.22

6.20

6.15

6.08

6.05

6.02

6.00

-

July

5.95

5.92

5.88

5.85

5.75

5.75

5.70

5.65

5.60

5.55

5.50

5.48

5.45

5.38

5.32

5.30

5.25

5.20

5.20

5.15

5.10

5.08

5.05

5.02

4.98

4.95

4.92

4.88

4.82

4.80

4.75

Aug.

4.70

4.65

4.60

4.55

4.48

4.38

4.38

4.38

4.35

4.35

4.32

4.28

4.20

4.18

4.15

4.10

4.05

4.00

3.95

3.92

3.90

3.90

3.85

3.85

3.80

3.70

3.62

3.58

3.55

3.55

3.55

Sept.

3.55

3.42

3.40

3.38

3.38

3.35

3.32

3.20

3.18

3.15

3.15

3.12

3.10

3.05

3.00

2.98

2.95

2.95

2.90

2.88

2.88

2.88

2.88

2.85

2.75

2.72

2.70

2.68

2.65

2.62

-

Pacific standard timi 

ar time to standard timi

prior to 2 a.m., Feb. 

, subtract 1 hour.

9, 1942; Pacific war time thereafter.
COLUSA AND YOLO BASINS 341 

Cache Creek at Yolo, Calif.

Location.- Water-stage recorder, lat. 38°43'30", long. 121°48'25", in Rio Jesus Maria 

Grant, 800 feet upstream from highway bridge and half a mile south of Yolo, Yolo 

County. Altitude of gage, about 60 feet (from topographic map).

Drainage area.- 1,150 square miles.

Records available.- January 1903 to September 1942.

Average discharge.- 39 years, 562 second-feet.

Extremes.- Maximum discharge during year, 28,100 second-feet plus overflow on right bank 

estimated as 6,000 second-feet, Feb. 6 (gage height, 28.64 feet); no flow for several 

months.

1903-42: Maximum discharge, 28,700 second-feet plus overflow on right bank 

estimated as 10,000 second-feet, Feb. 28, 1940 (gage height, 29.0 feet); no flow 

during some periods in nearly every year.

Maximum stage observed, 29.8 feet, staff gage reading, Feb. 2, 1915.

Remarks.- Records good except those for period of doubtful gage-height record and those 

ror May 28 to June 27, which are fair. Numerous diversions above station for irrigation; storage in Clear Lake.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec.

0

0

133

476

236

166

124

96

78

64

50

40

34

513

1,140

3,230

2,950

1,710

1,960

1,030

675

505

424

428

375

405

514

2,990

9,340

4,600

2,390

Jan.

2,660

2,830

2,670

2,540

2,420

1,310

559

1,490

1,540

2,960

2,840

2,720

2,620

1,480

806

1,270

2,030

908

492

412

378

378

2,360

8,820

11,400

6,380

6,860

6,140

5,050

4,500

4,260

Feb.

4,030

7,390

8,160

9,610

14,100

24,600

15,500

9,500

7,780

6,930

6,380

5,960

5,570

5,080

4,890

4,830

4,620

4,430

4,280

4,160

4,060

3,980

3,830

3,750

3,680

3,560

3,460

3,380

-

-

-

Month

October. ...................................

November . ..................................

December. ..................................

Calendar year 1941 ......................

January. ...................................

February ...................................

March ......................................

April. .....................................

May........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

3,280

3,190

2,080

d850

d650

d550

<3500

d480

d460

464

950

806

577

1,110

3,640

4,120

4,100

2,210

1,760

1,550

872

756

680

636

590

550

523

500

478

456

440

Apr.

432

420

416

514

1,640

4,460

3,860

2,280

1,410

1,720

1,830

1,570

1,480

4,720

4,730

4,300

4,420

4,500

4,220

4,000

3,870

2,120

1,310

986

878

800

756

728

784

1,550

-

Seccndfoot-days

0

0

36,676

698,852.7

93,083

187,500

39 , 808

66,704

26,530

568.8

0

0

0

450,869.8

May

2,360

2,380

1,370

767

670

626

600

577

550

518

510

487

460

427

1,080

1,180

1,190

1,180

1,130

1,090

1,070

1,020

1,010

974

962

1,040

532

245

200

182

143

Maximum

0

0

9,340

18,200

11,400

24,600

4,120

4,730

2 , 380

111

0

0

0

24,600

June

111

92

92

64

36

22

12

5

3.0

2.0

.9

.9

.9

2.0

20

31

33

19

8.5

2.0

.5

.6

2.0

4.0

2.0

.5

.1

0

0

0

-

Minimum

0

0

0

0

376

3,380

440

416

143

0

0

0

0

0

July Aug.

Mean

0

0

1,183

1,915

3,003

6 9 696

1,284

g 225

856

19 0* 0

0

0

1,235

Sept.

Runoff in 

acre-feet

0

0

72,750

1,386,000

184,600

78,960

132,300

52,620

1,130

0

0

0

894,300

Peak discharge.- Dee. 29 (6:30 a.m.) 13,600 sec.-ft.; Jan. 24 (3 a.m.) 10,300 see.-ft.; Jan. 25 

(3 a.m.) 17,100 sec.-ft.; Feb. 2 (5:30 p.m.) 11,300 see.-ft.; Feb. 5 (1 a.m.) 16,800 see.-ft.; 

Feb. 6 (2 p.m.) 28,100 see.-ft.

d Doubtful gage-height record; discharge comouted on basis of probable gage-height record and 

weather records.

Time basis : Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
COLUSA AND YOLO BASINS

North Fork of Cache Creek near Lower Lake, Calif.

Location.- Water-stage recorder, lat. 39°01', long. 122°33', in NEi sec. 31, T. 14 U., 

R. 6 W. , 500 feet upstream from Sweet Hollow Creek, 3 miles upstream from mouth, and 

7 miles northeast of Lower Lake. Datum of gage is 1,035.60 feet above mean sea level 

(preliminary adjustment of 1929).

Drainage area.- 214 square miles.

Records available.- July 1930 to September 1942.

Average discharge.- 12 years, 192 second-feet.

Extremes.- Maximum discharge during year, 12,800 second-feet Feb. 6 (ga 

from rating curve extended above 3,600 second-feet; minimum,

height, 11.5 

.0 second-feet 

Sept. 19.

1930-42: Maximum discharge, 20,000 second-feet Feb. 28, 1940 (gage height, 13.9 

feet), by slope-area method and logarithmic plotting; no flow at times in each year 

1930 to 1936.

Remarks.- Records good except those above 5,000 second-feet, which are fair. Several 

small diversions above station.

Rating tables, water year 1941-42 (gage height^ In feet, and discharge, Jn second-feet)

Oct. 1 to Feb. 6

1.1

1.2

1.3

1.4

1.5

1.7

1.9

2.2

2.0

5

6.5

12

IS

30

46

76

2.5

2.8

3.2

3.6

4.0

4.5

5.0

5.5

110

149

228

340

475

680

910

1,190

6.0

6.5

7.0

8.0

9.0

10

1,560

2,040

2,600

4,100

6,200

8,760

Feb. 7 to Sept. 30

1.2 1.0 2.0 49

1.3 2.3 2.2 70

1.4 5.6 2.5 108

1.5 10 8.8 150

1.6 16 3.1 204 

1.8 31

Note.- Same as preceding table above 3.1 feet.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

3.5

3.2

2.9

2.6

2.9

3.2

3.5

3.8

3.8

3.5

3.8

4.1

4.1

4.1

4.1

3.8

3.8

3.6

4.1

4.7

4.4

4.4

4.4

4.1

4.4

5.5

11

9

7.5

7

7

Nov.

8.5

14

16

19

17

16

14

14

14

14

13

13

12

12

13

14

14

14

14

14

14

a!4

a!4

a!4

al4

al4

14

16

32

74

-

Dec.

58

239

708

169

102

76

61

51

46

41

36

35

64

628

1,290

2,050

1,000

2,030

1,030

662

a450

a350

a400

366

304

313

271

499

2,020

990

743

Jan.

550

409

328

288

249

233

S97

1,230

851

698

558

475

406

343

302

274

241

211

189

172

163

337

2,320

3,180

2,550

1,680

2,370

1,560

965

d850

743

Feb.

694

3,000

2,210

5,490

5,980

8,710

4,280

2,550

1,810

1,320

1,030

d900

d750

671

5S2

522

472

440

403

379

359

331

304

299

262

265

249

233

-

-

-

Uar.

221

211

204

194

188

180

171

16S

163

175

271

202

190

241

274

346

353

328

288

257

236

226

218

209

198

186

180

173

170

163

163

Apr.

161

155

170

452

880

702

482

399

392

578

437

375

630

1,230

925

880

860

820

712

612

526

468

413

369

331

307

302

274

244

274

-

Hay

346

271

244

223

206

196

188

180

173

170

188

171

161

152

164

156

147

140

132

126

122

116

115

112

163

161

140

137

132

133

125

June

119

114

111

lOg

99

95

92

91

86

85

80

77

74

71

68

66

63

61

60

58

56

53

51

49

47

47

45

43

40

38

-

July

35

33

31

29

29

28

26

25

24

22

82

21

20

20

20

20

19

18

17

17

ai?

a

9.5

9:8

9

9

8.5

S

Aug.

8

8

7.5

7.5

7.5

7

6.5

6.5

6

4.6

4.6

4.3

4.0

4.0

4.0

4.0

4.0

3.6

3.3

3.3

2.6

s:e

2:6

2:6

2.6

g.fc

g.fe

2:5 |:I

2.6

2.3

Sept.

2.3

2.3

8.3

2.3

2.3

8.3

8.3

2.3

S.6

2.6

2.6

2.3

2.3

2.3

2.3

2.3

8.2

2.2

2.0

2.2

8.2

8.2

2.3

2.3

2.6

2:3

2.3

2.3

2.3

2.3

Month

December. ..................................

Unv

Water year 1941-42 ......................

Secondfoot-days

142.0

499.5

17,082

165,989.8

25,642

44; 515

6,747

15,S§0

5, lid

8,144

592.5

136 . 6

69.4

116,119.9

Maximum

11

2)05*9

5, ISO

3,180

8,710

353

1,280

346

119

35

8

8.6

8,710

Minimum

2.S

8.5

35

163

233

163

155

112

38

8

2.3

2.0

2.0

Mean

4.58

16.6

551

827

1,590

218

512

167

71.5

19.1

4.40

2.31

324

Runoff ±n 

acre feet

282

991

33, 880

329,200

50,860

88,290

13,380

30,470

10,290

4,250

1,180

271

138

234,300

Peak discharge.- Dee. 16 (2 p.m.) 3,330 aes.-ft.; Dee. 29 (7 a.m.) 2,890 sec.-ft.; Jan. 24 (2:30 

p.m.) 5,170 aec.-ft.; Feb. 2 (5:30 a.m.) 3,960 sec.-ft.; Feb. 4 (1:30 p.m.) 7,540 sec.-ft.; Feb. 6 

(5 p.m.) 12,800 sec.-ft.

a No gage-height record; discharge Interpolated, or computed on basis of records for nearby 

stations.

d Doubtful gage-height record; discharge interpolated.

Time baala; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
COLUSA AND YOLO BASINS 

Putah Creek near Guenoc, Calif.

343

Location.- Water-stage recorder, lat. 38°46', long. 122°31', in sec. 22, T. 11 N., R. 

6 W., Just upstream from dam site and 3i miles downstream from highway bridge at 

Guenoc. Datum of gage is 913.4 feet above mean sea level (from river-profile survey).

Drainage area.- 112 square miles.

Records available.- February 1904 to July 1906, July 1930 to September 1942.

Average discharge.- 12 years (1930-42), 209 second-feet.

Extremes.- Maximum discharge during year, 16,800 second-feet Feb. 6 (gage height, 17.08 

feet), from rating curve extended above 5,500 second-feet; minimum, 6 second-feet 

Oct. 3, 16-18, Sept. 30.

1904-6, 1930-42: Maximum discharge observed, 24,600 second-feet Mar. 10, 1904 

(gage height, 20.1 feet, datum then in use), from rating curve extended above 14,500 

second-feet; minimum discharge, 0.6 second-foot Sept. 30, Oct. 4, 1932.

Remarks.- Records good. Small diversions above station.

Rating tables, water year 1941-42 (gage height, In feet, and discharge, In second-feet) 

Oct. 1 to Dec. 16 Dec. 16 to Sept. 30

1.4 6 2.4 78 5.5 900 1.2 5 2.2 63 5.0 754 

1.5 8.5 2.7 123 6.0 1,140 1.3 6.8 2.5 102 6.0 1,210 

1.6 12 3.0 176 7.0 1,750 1.4 9.2 3.0 186 7.0 1,870 

1.7 16 3.5 275 8.0 2,540 1.5 12.2 3.5 290 9.0 3,710 

1.8 21.5 4.0 392 9.0 3,510 1.7 20.5 4.0 416 11.0 6,210 

2.0 35 4.5 530 10.0 4,660 1.9 34 4.5 572 13.1 9,520 

2.2 54 5.0 705

Discharge, in second feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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 

7 

7 

7 

7

7 

7 

7 

7 

7

7

7 

7 

7 

7

6.5 

G.5 

6.5 

6.5 

6.5

6.5 

6.5 

6.5 

6.5

7

8

8 

7 

7 

7 

7

Nov.

8 

8 

8.5 

9 

9.5

9 

9 

9.5 

9.5 

9.5

10 

11 

12 

11 

12

12 

13 

13 

13 

13

13 

13 

13 

13 

14

14 

14 

15 

45 

172

Dec.

89 

891 

1,020 

248 

145

109 

88 

73 

64 

58

54

51 

221 

2,060 

4,170

5,090 

1,490 

3,050 

1,240 

838

569 

453

493 

376 

430

368

438 

2,490 

1,740 

P31 

671

Month

Ooto 

Hove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

Hav

June 

July 

Augu 

Sept

Wa

Jan.

512 

411 

346 

295 

256

243 

1,150 

903 

569 

441

371 

319 

276 

245 

225

219 

197 

182 

169 

156

151 

417 

3,220 

4,920 

2,810

1,770 

2,600 

1,340 

927 

762 

656

Feb.

644 

3,950 

2,140 

5,060 

7,200

9,510 

3,730 

1,860 

1,260 

976

790 

656 

558 

487 

430

389 

350 

324 

321 

283

265 

243 

225

215 

201

188 

178 

1C7

ber. ...................................

mber, ..................................

lendar year 1941 

ary

1.. ....................................

at. ....................................

ter year 1941-48 ...............

Mar.

158 

153 

147 

140 

135

129 

124 

119 

116 

160

581 

241 

199 

347 

487

558 

532 

462 

366 

302

263 

235

217 

199 

182

169 

160 

151 

144 

137 

139

fSa

Apr.

140 

127 

167 

884 

1,730

910 

586 

453 

480 

851

525 

427 

992 

1,440 

830

806 

863 

724 

575 

487

419 

366 

321 

285 

260

237 

239 

227 

203 

265

May

324 

229 

201 

186 

173

160 

151 

144 

139 

134

154 

137 

132 

124 

132

126 

116 

109 

102 

98

94 

88 

87 

84 

264

178 

132 

119 

109 

105 

98

214.5 8 

535.5 172 

30,008 5,090

156,725.5 6,010

27,058 4,920 

42,600 9,510 

7,452 581 

16,819 1,730 

4,429 324 

1,632 94 

588 29 

308.5 12 

222.0 8.5

131,866.5 9,510

Peak discharge.- Dec. 16 (10 a.m.) 9.780 sec. -ft.; Dec. 28 (1 p.

June

94 

88 

84 

82 

78

74 

71 

70 

v 68 

65

63

60 

58 

53

50

48 

46 

43 

42 

41

40 

39 

37 

36 

36

36 

35 

33 

32

30

Minimum

6.5 

8 

51

6.5

151 

167 

116 

127 

84 

30 

12 

8.5 

6.5

6.5

m. ) 4,920

July

29

27 

26 

25 

25

25 

24 

23 

22

20

20 

20 

20 

20

19

19 

19 

19 

18 

17

16 

16a13

13 

13 

13 

13 

13 

12

Aug.

12 

12 

12 

12 

12

12 

12 

11 

11 

11

11 

10

10 

10 

10

10 

9.5 

9 

9 

9

9 

8.5 

8.5 

8.5 

8.5

8.5 

8.5

8.5 

8.5 

8.5

Sept.

8.5 

8.5 

8.5 

8 

8

8 

8 

8 

8 

8

8 

8

7.5 

7.5 

7.5

7.5 

7 

7 

7 

7

7 

7 

7 

6.5 

6.5

6.5

e'.s

6.5 

6.5

 _ Runoff in Mean acre-feet

6.92 425 

17.8 1,060 

968 59,520

429 310,900

873 53,670 

1,521 84,500 

240 14,780 

561 33,360 

143 8,780 

54.4 3,240 

19.0 1,170 

9.95 612 

7 . 40 440

361 261,600

see. -ft.; Jan. 24

(4 p.m.) 8,160 sec.-ft.; Feb. 2 (4:30 a.m.) 6,320 sec.-ft.; Feb. 4 (10 a.m.) 8,190 sec.-ft.; Feb. 

(3 a.m.) 16,800 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
344 COLUSA AND YOLO BASINS

Putah Creek near Winters, Calif.

Location.- Water-stage recorder, lat. 38°31', long. 122°05', In NEi sec. 28, T. 8 N., R.

2 W., 6 miles west of Winters and 8 miles downstream from Capell Creek. Datum of gage

Is 160.75 feet above mean sea level (from river-profile survey). 

Drainage area.- 614 square miles. 

Records available.- June 1930 to September 1942. 1905-31 at site at Winters, 6 miles

downstream; records equivalent except for very low flows. 

Average annual discharge.- 12 years (1930-42), 546 second-feet.

Extremes.- Maximum discharge during year, 60,800 second-feet Feb. 6 (gage height, 28.55 

 feet), from rating curve extended above 28,000 second-feet by slope-area computations;

minimum, 15 second-feet Oct. 1-4.

1905-42: Maximum discharge, 70,500 second-feet Feb. 27, 1940 (gage height, 30.5

feet, present datum), from rating curve extended above 28,000 second-feet by slope-area

computations; minimum (at present site), 0.3 second-foot Aug. 23, 24, 26, 27, 1931, and

Aug. 7, Sept. 24, 25, 1939. 

Remarks.- Records excellent below 30,000 second-feet and good above. Several pumps above

station divert water for Irrigation.

Rating table, water year 1941-42 (gage height, In feet, and discharge, 

In second-feet)

3.8

3.9

4.0

4.1

4.2

4.4

4.6

4.8

14

16

19

22

27

3S

54

73

5.1

5.4

5.8

6.3

7.0

7.5

8.0

9.0

106

144

200

290

460

620

820

1,320

10

11

12

14

16

18

20

24

1,940

2,750

3,820

7,110

11,400

16,900

24,000

40, 000

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

15

15

15

15

16

17

17

18

18

19

19

19

20

19

21

21

20

20

20

22

24

23

22

22

22

23

33

36

39

33

a32

Nov.

30

33

38

44

44

40

37

36

34

34

33

33

33

33

34

35

35

35

35

35

35

36

36

36

36

36

37

43

50

73

-

Dec.

184

175

1,980

785

343

233

186

158

140

126

116

107

104

3,040

6,580

11,400

4,250

4,930

3,000

1,690

1,200

925

910

874

1,200

1,040

1,650

5,350

10,300

2,840

1,790

Jan.

1,360

1,060

878

743

644

574

804

2,380

1,320

985

811

695

610

541

490

457

435

401

373

349

334

446

6,800

13,400

10,900

4,990

7,110

4,270

2,690

2,100

1,850

Feb.

1,610

6,420

5,930

12,700

17,300

38,700

11,000

5,830

3,940

3,050

2,480

2,100

1,820

1,630

1,480

1,360

1,240

1,160

1,100

1,020

965

906

820

784

743

687

655

620

_

_

-

Month

October. ...................................

November. ..................................

December . ..................................

Calendar year 1941 ......................

January. ................................. .

February ...................................

March. .....................................

April. .....................................

May. .......................................

June .......................................

July.... ...................................

August .....................................

September ..................................

Water year 1941-42 ......................

Mar.

578

557

541

508

484

469

438

422

411

432

1,900

1,070

723

2,400

2,590

2,090

1,780

1,510

1,240

1,040

915

829

755

703

644

596

557

538

514

490

475

Apr.

496

460

478

1,320

4,580

3,140

1,710

1,310

1,140

1,840

1,530

1,180

1,120

3,890

2,290

1,760

2,020

2,110

1,610

1,390

1,220

1,090

965

874

806

747

727

731

667

630

-

Secondfoot-days

675

1 129

67J 606

483,732

70,740

128,040

28,199

43,831

12,754

4,667

1,608

745

575

360,569

May

915

719

610

554

517

487

460

440

424

411

429

429

409

388

385

388

366

343

323

308

297

280

268

260

290

499

373

321

299

290

272

Maximum

39

rj-* I G

11,400

18,800

13,400

38,700

2,590

4,5SO

915

257

84

29

21

38,700

June

257

246

237

226

216

208

198

KS

185

179

172

165

158

156

149

141

135

130

126

123

122

119

116

113

108

105

102

99

94

90

-

Minimum

15

30

104

13

334

620

411

460

260

90

28

21

18

15

July

84

77

75

72

70

69

69

68

65

62

58

56

54

52

52

52

51

51

49

45

41

40

40

38

36

33

32

30

30

29

28

Aug.

28

29

28

28

27

27

27

26

25

25

25

24

23

23

24

23

23

24

24

24

22

22

22

21

22

22

22

22

21

21

21

Mean

21.8

37.6

1,325

2,282

4,573

910

1,461

411

156

51.9

24.0

19.2

988

Sept.

21

20

19

18

18

19

19

19

20

20

20

18

18

18

18

18

18

18

19

20

20

19

19

19

20

20

20

20

20

20

-

Runoff in 

acre-feet

1,340

2,S40

134,100

959,500

140,300

254,000

55, 930

86,940

25,300

9,260

3,190

1>480

1,140

715,200

Peak discharge.- Dec. 16 (5:30 p.m.) 17,300 sec.-ft.; Dec. 18 (2 p.m.) 7,540 sec.-ft.5 Dec. 29 

(2 a.m.) 20,800 sec.-ft.j Jan. 24 (7:30 p.m.) 29,200 sec.-ft.; Feb. 4 (5:30 p.m.) 22,500 sec.-ft.; 

Feb. 6 (7:30 a.m.) 60,600 sec.-ft.

a No gage-height record; discharge Interpolated.

Time baala; Pacific standard time prior to 2 a.m., Fet. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
NAPA RIVER BASIN 345

Napa River near St. Helena, Calif.

Location.- Water-stage recorder, lat. 38°29'40n , long. 122°25'50", in SEi sec. 32, T. 

b N., R. 5 vf., a quarter of a mile upstream from highway bridge, 1.3 miles northeast 

of Zlnfandel, and 2.5 miles east of St. Helena. Altitude of gage, about 200 feet 

(from topographic map).

Drainage area.- 83.5 square miles.

Records available.- November 1929 to September 1932, November 1939 to September 1.942.

Extremes.- Maximum discharge during year, 11,£ second-feet Feb. 6 (gage height, 14.6

feet); minimum, 0.1 second-foot Sept. 3.

1929-32, 1939-42: Minimum discharge, that of Feb. 6, 1942; no flow parts of 

Oct. 8-12, 14, 1940.

Remarks.- Records fair. Small diversions above station for irrigation.

Rating tables, water year 1941-42 (gage height. In feet, and discharge, In second-feet) 

(Shifting-control method used Sept. 4-30)

Oct. 1 to Feb. 6 Feb. 6 to Sept. 30

0.6 0,5 1.8 100 4.7 1,280 0 6 0.5 1.8 110 

.7 1.0 2.1 15V 5.2 1,580 7 1.3 2.1 170 

.8 2.5 2.4 226 6.0 2,120 8 3.0 2.4 248 

.9 5.5 2.7 320 7.0 2,900 9 6 2.8 374 

1.0 10 3.0 432 8.0 3,780 0 10 3.2 536 

1.2 23 3.4 602 9.3 5,110 1 17 3.6 728 

1.4 42 3.8 794 11,2 7,320 2 26 4.2 1,060 

1.6 68 4.2 1,000 4 49 4.8 1,420 

6 77 5.5 1,870

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

al.8 

al.8 

al.8 

al.6 

al.6

al.6 

1.3 

1.3 

1.4

1.4

1.6 

1.8 

1.8 

1.6 

1.6

1.4 

1.4 

1.4 

1.3 

1.3

1.3 

1.0 

1.0 

.9 

1.0

1.0 

3.4 

4.0 

2.0 

1.2 

1.0

Nov.

1.2 

3.4 

4.3 

3.7

3.1

2.5 

2.0 

2.2 

2.2 

2.2

2,2 

2.4 

2.5 

2.8 

2.8

2.8 

2.8 

3.4 

3.4 

3.1

3.4 

3.4 

3.1 

3.1

3.1

3.1 

3.4 

4.6

7.5 

15

Dec.

16 

67 

251 

44 

24

17 

14 

12 

11 

9.5

9 

8.5 

52 

515 

1,270

1,410 

468 

903 

452 

273

187 

157 

260 

192 

221

199 

615 

1,230 

867 

424 

283

Jan.

201 

159 

131 

107 

95

85 

179 

206 

143 

118

104 

90 

83 

74 

70

65 

61 

57 

52 

49

46 

146 

1,120 

2,050 

1,410

992 

1,470 

877 

552 

402 

306

Feb.

264 

1,250 

960 

2.970 

4,190

7,240 

1,870 

951 

635 

471

349

27S 

220 

184 

163

146 

130 

115 

107 

93

90 

79

73 

71 

66

62 

59 

56

Month

Ooto 

Nove 

Deoe

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

 her. . ................................

lendar year 1941 ......................

ary

St. ..... ....

ember. . . 

ter year 1941-42 ...............

Mar.

55 

53 

55 

44 

42

39

36 

36 

36 

54

272 

98 

77 

787 

492

352 

285 

251 

177 

140

119 

110 

102 

91 

83

76 

69 

64 

59 

56 

57

Apr.

55 

49 

70 

339 

698

403 

254 

192 

187 

256

187 

159 

330 

580 

356

385 

500 

426 

325 

262

207 

170 

140 

146 

114

98 

106 

96 

85

110

Secondfoot-days

48.6 

104.7 

10,461.0

73,778.3

11,500 

23,135 

4,247 

7,284 

1,604 

476.5 

217.1 

98.1 

48.8

59,224.8

Peak discharge,- Dec. 16 (11:30 a.m.) 2,720 sec. -ft.:

May

126 

100 

80 

70 

66

59 

56 

55 

52 

50

60 

50 

48 

47 

57

50 

45 

44 

42 

38

35 

33 

30 

29 

64

60 

36 

35 

32 

29 

26

Maximu*

4.0

15 

1,410

4,600

2,050 

7,240 

787 

698 

126 

25 

9.5 

4.8 

2.7

7,240

June

25 

24 

23 

23 

22

22 

21 

19 

18 

18

17 

16 

16 

16 

16

16 

16 

14 

14 

14

14 

14 

12 

12

11

10 

8.5 

9.5 

8

7.5

Miniaun

0.9 

1.2

8.5

.9

46 

56 

36 

49 

26 

7.5 

4.5 

2.0 

.9

.9

July

8 

8.5 

9 

8.5 

9.5

9 

9 

9 

8 

8

7.5 

7.5 

7 

7 

8

7.5 

7 

7 

7 

6.5

5.5 

6 

5.5

5.5 

5.5

5.5 

5.5 

5.5 

4.8

^

Aug.

4.8 

4.8 

4.8 

4.2 

3.0

2.8 

3.3 

3.3 

3.9 

3.6

3.6 

3.6 

3.3 

3.0 

2.8

2.8 

3.3 

2.7 

2.3 

2.3

2.0 

2.8 

3.0 

3.0 

3.0

2.8 

2.7 

 *-** , 2.7

2,7 

T 2.7

Sept.

2.7 

1.2 

.9 

1.2 

2.2

2.2 

2.3 

2.3 

2.3 

2.3

1.8 

1.8 

1.8 

1.6 

1,5

1.3 

1.5 

1.3 

1.5 

1.3

1.3 

1.3 

1.3 

1.5 

1.3

1.5 

1.5 

1.5 

1,3 

1.3

ut.,. Runoff in "ean acre-feet

1.57 96 

3.49 208 

337 20,750

202 146,300

371 22,810 

826 45,890 

137 8,420 

243 14,450 

51.7 3,180 

15.9 946 

7.00 431 

3.16 195 

1.63 97

168 117,500

Dec. 28 (7 p.m.) 2,280 sec. -ft.; Jan. 23

(12«30 p.m.) 2.42C sec.-ft.; Jan. 24 (3 p.m.) 4,330 see.-ft.; Feb. 4 (l p.m.) 4,840 sec.-ft.; 

Feb. 6 (6 a.m.) 11,800 sec.-ft.

a Incomplete gage-height record; discharge computed on basis of recorded range of stage.

Time basis: Pacific standard time nrlor to 2 a.m., Feb. 9, 1942; Pacific war time thereaft? 

To convert war time to standard time, subtract 1 hour.

530350 O - 43 - 23
346 NAPA RIVER BASIN

Conn Creek near St. Helena, Calif.

Location.- Water-stage recorder, lat. 38°29', long. 122°24', in NWi sec. 3, T. 7 N., R. 

5 W., a quarter of a mile upstream from highway bridge, 4 miles southeast of St. 

Helena, and 6 miles upstream from mouth. Altitude of gage, about 180 feet (from 

topographi c map).

Drainage area.- 52.0 square miles.

Records available.- November 1939 to September 1942.

Average discharge.- 12 years, 37.7 second-feet.

Extremes.- Maximum discharge during year, 6,880 second-feet Feb. 6 (gage height, 10.9 

reet); no flow for parts of several months.

1930-42: Maximum discharge, 7,700 second-feet Feb. 27, 1940 (gage height, 11.80 

feet), from rating curve extended above 6,000 second-feet; no flow for several months 

each year.

Remarks.- Records good November and May to September, fair for remainder of year. Small 

diversions above station fo-r irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

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.

0

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

3.7

3.7

2.1

1.6

1.5

Nov.

1.8

6.5

5.5

4.9

2.5

2.1

2.1

2.1

1.8

1.8

1.8

1.8

1.5

1.5

1.5

1.8

1.8

1.8

1.5

1.5

1.5

1.5

1.5

1.5

1.3

1.3

1.3

2.5

6

13

-

Dec.

6.5

15

72

13

6.5

4.3

3.7

3.1

3.1

2.5

3.1

3.1

5.5

189

426

383

118

231

96

65

43

36

58

38

82

56

343

739

503

234

156

Jan.

ice

83

69

61

54

50

79

83

61

54

50

47

43

42

41

39

36

35

34

33

33

58

5S8

1,200

680

475

770

382

227

161

118

Feb.

99

4SO

332

1,260

2,020

2,910

808

428

295

227

182

152

ISO

115

105

96

85

80

74

69

65

61

55

53

49

46

44

42

,.

_

-

Mar.

39

38

37

34

32

32

31

31

31

42

155

60

51

403

217

140

115

102

85

73

65

60

55

51

47

42

41

39

36

34

36

Apr.

35

31

40

181

315

170 12"1

1C

97

12.r

91

80

152

200

133

148

182

154

130

115

104

91

81

73

65

62

63

57

53

57

-

May

58

48

42

40

37

34

33

32

31

30

34

31

29

27

30

27

25

23

21

21

20

19

19

19

27

21

19

17

16

16

15

June

15 .

14

14

14

13

12

11

11

11

11

9.5

9.5

9.5

9

9

8.5

8.5

8

8

7

7

6

5.5

5.5

5

5

4.5

4.5

4.2

3.8

-

July

3.4

3.4

3.4

3.1

3.4

3.1

2.8

2.8

2.8

2.4

2.0

2.0

2.0

2.0

1.7

1.7

1.7

1.7

1.7

1.4

1.4

1.0

1.4

1.0

1.0

1.0

1.4

2.0

2.4

2.4

2.0

Aug.

2.4

2.0

2.0

1.7

1.0

1.4

1.4

1.4

1.0

1.0

1.4

1.4

1.4

1.0

.7

.7

.5

.7

1.0

1.0

.5

.1

.1

0

0

.1

.1

0

0

0

0

Sept.

Month

DecembeiqfcfcjTT .-^,. ..........................

Calendar yet,tt$fol

Water year 1941-42 ......................

Secondfoot days

3 9^7 4 '

35,094.1

10,362

861

263.5

26.0

26,963.1

Maximum

2,300

1,200

" 2,910

315

58

15

2.4

0

2,910

Minimum

0

0

42

31

31

15

3.8

1.0

0

0

0

Mean

96.1

187

370

72.7

110

27.8

8.78

2.11

.84

0

73.9

Runoff in 

acre-feet

69,610

11,490

20,550

4,470

6,560

1,710

523

130

52

0

53,480

Peak discharge.- Dec. 16 (11 a.m.) 655 sec.-ft.; Dec. 28 (8 p.m.) 1,640 sec.-ft.; Jan. 24 (3 

p.n.) 2,620 sec.-ft.; Feb. 4 (8:30 a.m.) 2,210 sec.-ft.; Feb. 6 (4:30 a.m.) 6,880 sec.-ft.; Mar. 14 

(4 p.m.) 868 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
RUSSIAN RIVER BASIN 347

East Fork of Russian River near Calpella, Calif.

Location.- Water-stage recorder, lat. 39°15', long. 123°09', In sec. 13, T. 16 N., R. 

12 W., 1 mile downstream from Cold Creek and 3 miles east of Calpella, Altitude of 

gage, about 720 feet (from topographic map).

Drainage area.- 96.9 square miles.

Records available.- November 1941 to September 1942.

Extremes.- Maximum discharge during period, 8,900 second-feet Feb. 5 (gage height, 12.35 

feet), from rating curve extender above 5,000 second-feet by logarithmic plotting; 

minimum, 55 second-feet (regulated) Aug. 16.

Remarks.- Records excellent. Small diversions above station for irrigation. Flow also 

affected by diversion into the basin, .see "Remarks" for Russian River near Hopland.

Rating table, period Nov. 4, 1941, to Sent. 30, 1942 (gage height, in- feet,

and discharge, in 3

1.7 60 3.0 246 4.6

2.0 90 3.4 340 E.O

2.3 128 3.B 455 5.5

2.6 173 4.2 585 6.0

econd-feet)

735 7.0 2,000

9O5 8.0 2,650

1,140 9.0 3,900

1,390 10.0 5,200

Discharge, in second- feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

_

_

_

222

219

208

210

215

215

215

215

212

217

219

219

221

221

219

217

217

217

217

219

219

217

217

219

221

257

fc*8

-

Dec.

234

1,010

701

302

250

238

230

224

215

165

221

221

610

1,050

2,480

2,660

1,630

2,990

771

63B

504

446

750

476

498

419

846

1,830

959

665

543

Jan.

461

416

385

360

332

379

1,320

735

524

449

410

3B5

365

346

335

327

317

309

302

297

295

514

1,710

1,740

1,210

1,230

1,790

1,020

727

638

557

Feb.

767

2,060

1,450

3,320

4,100

4,440

2,210

1,180

882

723

624

554

498

464

440

416

396

3B5

379

368

357

343

332

343

324

297

309

304

-

-

Month

October. ....... ...........................

November 3-30 ..............................

December ...................................

Calendar year ......................

January. ...................................

February ....................................

March.. ....................................

April ......................................

Bay........................................

June .......................................

July.. ................................. ...

August .....................................

September ....... ........... ..............

The period. ..............................

Mar.

300

295

292

283

286

283

279

277

277

295

317

286

322

491

399

354

332

322

309

300

295

292

288

283

279

275

272

272

270

268

270

Apr.

Secondfoot-days

5,932

24,776

20,185

28,265

9,363

12 f 782

8,771

6,444

4,083

3,889

4 ' £32

-

26B

268

307

498

627

437

371

343

335

337

312

302

717

858

537

642

676

550

470

425

390

362

343

330

322

319

340

324 3121

462

-

May

388

335

319

307

302

295

288

272

283

286

295

279

275

275

297

277

272

266

261

261

261

259

255

255

322

272 259'

268

264

264

259

Maximum

257

2,990

1,790

4,440

491

856

388

255

168

168

175

-

June

255

253

250

250

248

248

248

246

238

226

236

240

242

22B

226

222

222

219

212

203

197

201

203

201

194

175

135

108

148

170

-

Minimum

208

165

295

297

268

268

255

108

64

62

82

-

July

167

167

167

115

108

146

163

162

165

168

76

64

112

142

146

151

145

87

70

120

140

154

148

149

84

73

124

142

140

140

148

Aug.

108

88

L44

L40

12B

146

L50

84

71

128

147

L46

L45

L38

84

66

132

155

147

153

168

96

62

128

154

163

160

166

90

BO

122

Mean

220

799

651

1,009

302

426

283

215

132

125

141

-

Sept.

139

155

174

169

102

91

149

166

175

160

160

102

84

141

159

163

161

154

101

82

156

155

151

155

156

102

100

150

169

172

-

Runoff in 

aor»-f»*t

11,770

49,140

.

40,040

56,06O

18,370

25,350

17,400

12,780

8,100

7,710

8,590

255,500

;.-ft.; Feb. 4 (6 a.m.) 6,940 sec.-ft.; Feb. 5 (9 p.m.)
348 RUSSIAN RIVER BASIN

Russian River near Hopland, Calif.

Location.- Wire-weight gage, lat. 39°01'35", long. -123°07'45n , In Rancho tie Sanel Grant, 

at highway bridge a quarter of a mile downstream from McNab Creek, 4 miles north of 

Copland, and about 17 miles upstream from Sulphur Creek. Datum of gage Is 497.43 

feet above mean sea level, datum of 1929.

Drainage area.- 345 square miles.

Records available.- December 1939 to September 1942.

ExtreTes.- Maximum discharge during year, L4.500 second-feet Feb. 6 (gage height, 22.8 

reet], from rating curve extended above 15,000 second-feet; minimum, 44 second-feet 

(regulated) Oct. 20.

1939-42: Maximum discharge, 34,100 sscond-feet Feb. 28, 1940 (gage height, 24.9 

feet), from rating curve extended above 30,000 second-feet; minimum, 28 second-feet 

Dec. 4, 1939.

Flood of December 1937 reached a stage of about 30.0 feet, from floodmarks.

Remarks.- Records fair. Gage read twice daily, with additional readings in periods of 

high water. Flow affected by diversion rrom Eel River through Potter Valley power 

plant (see p. 357) into East Fork of Russian River (see p. 348 ). Several small 

diversions pbove station for irrigation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

210

216

229

226

229

236

232

229

223

a221

a220

a218

216

216

216

220

181

126

61

51

53

165

184

191

194

200

213

220

200

200

188

Nov.

213

216

216

229

232

232

226

223

220

223

216

226

216

216

213

226

236

236

236

232

226

229

229

229

232

232

232

236

304

376

Dec.

204

1,280

2 , 540

R28

480

380

a330

280

264

194

232

232

293

3,200

7,480

10,900

4,600

12,400

3,980

2,820

2,060

1,820

2,540

1,860

1,890

1,640

2,220

7,890

5,080

2,860

2,060

Jan.

1,680

1,450

1,320

1,170

1,050

952

2,620

2,P40

1,610

1,320

1,180

1,080

1,000

922

872

806

755

715

673

646

632

1,060

4,920

5,740

5,190

4,070

5,460

3,980

2,660

2,100

1,780

Feb.

1,780

5,770

4,400

11,900

10,400

19,000

8,660

4,740

2,990

2,560

2,030

1,720

1,500

1,280

1,150

1,050

1,010

990

1,000

924

880

835

805

810

770

740

720

a700

_

_

-

Month

October. ...................................

Nor«»ber. ..................................

Deocaber. ..................................

Calendar year 1941 ......................

January. ...................................

February ...................................

March. .....................................

April ...................................

May........................................

June .......................................

Jnly. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

670

655

635

621

612

598

580

571

558

593

785

650

640

1,040

1,040

935

860

790

725

700

675

655

621

602

575

566

549

553

536

527

514

Apr.

518

514

558

1,190

1,890

1,170

974

845

800

810

725

650

1,190

2,P40

1,720

1,560

1,480

1,540

1,330

1,080

918

825

a760

695

680

645

680

655

602

580

-

Seoondfoot-days

5,984

7,008

84,937

428,108

61,953

91,114

20,631

30,524

14,864

8,375

4,454

4,110

4,075

338,029

May

710

660

621

575

549

531

500

479

471

462

514

467

446

446

483

475

446

429

416

395

387

378

374

370

500

437

471

514

492

441

425

Maximui

236

376

12,400

15,900

5,740

19,000

1,040

2,940

710

408

190

160

155

19,000

June

408

391

362

330

350

338

334

330

310

310

306

286

290

298

286

271

267

260

252

238

245

238

235

232

235

225

199

175

175

199

~

Minimi*

51

213

194

51

632

700

514

514

370

175

95

95

90

51

July

190

186

183

164

153

169

169

169

175

a!65

158

118

104

132

153

148

145

145

108

95

125

142

150

140

142

104

99

104

135

142

142

Aug.

145

120

120

148

135

140

142

145

113

:ni

137

a!35

135

132

137

106

95

142

132

140

155

160

99

a!30

137

145

148

145

155

106

130

Mean

193

234

2,740

1,173

1,998

3,254

666

1,017

479

279

144

133

136

926

Sept.

135

140

150

145

140

allO

alOO

a!40

a 150

a!50

145

a 140

a 100

a90

a!40

a!45

153

a!50

a!40

a 100

113

137

145

148

150

153

118

a!40

153

155

~

Runoff in 

aor*-feet

11,870

13,900

168,500

849,200

122,900

180,700

40,920

60,540

29,480

16,610

8,830

8,150

8,080

670,500

a No gage-helscht record; discharge interpolated except noted daya in August and September when 

computed on basis of records for Healdsburg and East Fork near Calpella.

Tine basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

Tc convert war time to standard time, subtract 1 hour.
RUSSIAN RIVER BASIN 349

Russian River near Healdsburg, Calif.

Location.- Water-stage recorder, lat. 38°36'45", long. 122°50'05", in SEi sec. 22, T. 

9 N., R. 9 W., 2 miles east of Healdsburg and 3i miles upstream from Dry Creek. 

Datum of gage is 76.84 feet above mean sea level, datum of 1929 (levels by Corps of 

Engineers, U. S. Army).

Drainage area.- 766 square miles.

Records available.- December 1939 to September 1942.

SxtreTies.- Maximum discharge during year, 43,200 second-feet Feb. 6 (gage height, 22.96 

feetj; minimum, 107 second-feet Sept. 2 and 23.

1939-42: Maximum discharge, 67,000 second-feet Feb. 28, 1940 (gage height, 30.0 

feet), from rating curve extended above 50,000 second-feet; minimum, 74 second-feet 

June 30 and Aug. 18, 1940.

Flood of December 1937 reached a stage of 30.8 feet, from floodmarks.

Remarks.- Records good except those for periods affected by backwater, which are fair. 

Small diversions above station for irrigation. Flow also affected by diversion into 

the basin, see "Remarks" for Russian River near Hopland.

Rating tables, water year 1941-42, except periods of backwater from dam at Healdsburg 

(gage height, in feet, and discharge, in second-feet) 

(Shifting-control method used Feb. 8-15)

Oct. 1 to Apr. 13 Apr. 14 to Sept. 3

2.7 

2.9 

3.1 

3.4 

3.7 

4.0

120 

17S 

230 

326 

440 

558 10

1,130 

£,000 

3,090 

4,380 

5,800 

7,500

14

16

18

20

22

23

15,900

21,000

12 11,500

32,600

39,600

43,400

£.3

2.5 

2.7 

3.0

140

190

278

3.3 

3.6 

3.9 

4.2

376

490

514

750

4.5

5.0 

5.7

905

1,200

1,730

Note.- Same as preceding table above 

5.7 'feet.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

206

>94

192

197

200

205

215

2£0

224

218

221

£24

224

224

224

221

218

218

194

180

158

142

147

175

192

212

239

242

242

239

236

Nov.

248

266

286

326

302

279

273

260

257

257

257

257

257

257

257

263

266

266

266

266

266

263

260

£81

287

257

E57

263

398

1,340

-

Dec.

935

1,510

6,570

£,830

2,560

1,110

881

738

546

58£

506

480

683

7,090

10,600

22,400

15,900

13,400

13,300

6,440

4,670

3,720

3,800

3,850

3,540

3,430

3,950

9,810

15,800

7,280

4,950

Jan.

3,770

2,970

2,500

£,140

1,880

1,700

2,120

5,670

3,770

2,900

2,440

£,120

1,870

1,710

1,560

1,470

1,360

1;260

1,180

1,100

1,050

1,820

10,900

17,500

17,800

10,600

13,100

10,400

6,760

5,180

4,250

Feb.

3,800

14,800

12,900

19,000

28,300

41,600

27,600

13,000

8,060

6,120

5,050

4,180

3,550

3,090

2,760

2,530

2,260

2,090

2,180

2,000

1,850

1,730

1,580

1,510

1,470

1,370

1,290

1,230

_

-

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1941 ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

1,150

1,100

1,070

1,020

923

953

923

L. 887

864

911

2,060

1,500

1,240

2,880

3,230

2,650

2,300

2,030

1,830

1,630

1,470

1,340

1,260

1,180

1,110

1,040

989

959

917

881

870

Apr.

893

842

858

2,040

5,280

4,880

3,160

2,460

2,150

2,550

2,100

1,800

3,040

8,620

5,880

4,660

5,070

5,050

3,920

3,250

2,740

£,340

2,030

1,820

1,650

1,510

1,470

1,460

1,330

1,370

-

Secondfoot-days

6,443

9,178

174,061

934.553

144,840

216,900

43,167

86,233

29,666

12,405

6,027

4,078

3,825

736,823

May

2,100

1,590

1,360

1,240

1,160

1,100

1,040

990

944

910

966

944

888

845

861

900

840

790

746

718

695

563

640

627

981

1,120

883

800

810

780

736

Maximum

242

1,340

22,400

29,000

17,800

41,600

3,230

8,620

2,100

704

263

150

145

41,600

June

704

667

654

630

610

585

555

522

502

462

442

435

416

412

398

356

342

329

315

304

291 290

290

288

294

£81

266

257

248

260

-

Minimum

142

£48

480

134

1,050

1,230

864

842

627

248

125

114

111

111

July

263

251

£54

254

251

224

£24

257

254

251

24£

198

182

198

200

190

185

182

185

169

157

152

154

162

164

157

140

129

125

133

140

Aug.

145

150

142

129

129

136

150

136

138

125

118

120

131

133

138

140

129

116

120

131

133

136

142

129

114

114

122

131

138

138

125

Mean

208

306

5,615

2,560

4,672

7,746

1,392

2,874

957

414

194

132

128

2,019

Sept.

Ill

111

122

131

142

142

129

118

122

136

145

142

142

129

116

114

127

IK

196

136

127

114

114

125

129

133

136

125

116

122

-

Runoff in 

acre- feet

1£,780

18,200

345,200

1,854,000

287,300

430,200

85,«20

171,000

58,840

24,600

11,950

8,090

7,590

1,461,000

Peak discharge.- Dec. 16 (6 to 8 p.m.) 26,400 sec. -ft.; Jan. 24 (11 p.m.) 24,000 sec. -ft.; Feb. 6

(6:30 a.m.) 43,200 sec.-ft.

Mote.- Backwater from dam at Healdsburg Oct. 1-8 and June 4 to July 16.

Tine' basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
350 RUSSIAN RIVER BASIN

Russian River at Guerneville, Calif.

Location.- Wire-weight gage, lat. 38°30'03", long. 122°59'36", In NWi sec. 32, T. 8 N., 

R. 10 W., at highway bridge in Guerneville, 6t miles upstream from Austin Creek. 

Datum of gage Is 8.67 feet above mean sea level, datum of 1929.

Drainage area.- 1,330 square miles.

Records available.- December 1939 to September 1942.

Extremes.- Maximum discharge observed during year, 67,800 second-feet Feb. 6 (gage 

nelght, 39.0 feet) from rating curve extended above 40,000 second-feet; minimum 

observed, 104 second-feet (regulated) Sept. 24, 30.

1939-42: Maximum discharge, 88,400 second-feet Feb. 28, 1940 (gage height, 46.87 

feet); minimum observed, 88 second-feet Aug. 19-20, 1940.

Flood of December 1937 reached a stage of about 42.5 feet, and flood of February 

1937 about 35.2 feet, both from floodmarks.

Rema rks.- Records good except those for periods of backwater, which are fair. Gage read 

twice dally, with additional readings In periods of high water. Small diversions 

above station for Irrigation. Flow also affected by diversion Into the basin, see 

"Remarks" for Russian River near Hopland.

Discharge, in second-feet, water year October 1941 to September 1942

Day

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct.

217

204

188

192

194

198

225

230

246

239

219

221

219

219

221

210

202

202

200

192

194

195

195

196

223

219

314

293

293

283

270

Nov.

280

296

319

343

332

322

316

303

301

296

296

296

296

296

293

296

296

296

296

296

298

298

296

285

285

280

280

298

311

1,400

-

Dec.

1,520

1,160

7,740

5,040

2,430

1,770

1,360

1,130

994

882

810

755

724

8,000

14,900

27,400

30,300

19,500

21,400

10,100

7,320

5,520

5,170

5,520

4,970

5,800

6,580

13,100

25,700

14,000

8,150

Jan.

5,600

4,580

3,740

3,150

2,750

2,490

3,200

8,220

6,080

4,400

3,590

3,130

2,740

2,480

2,250

2,130

2,000

1,840

1,750

1,620

1,520

2,190

14,000

30,600

36,600

22,100

21,600

18,200

12,000

8,680

7,020

Feb.

6,010

21,000

26,500

30,000

43,900

64.300

58,000

30,800

16,000

10,900

8,520

6,880

5,860

4,920

4,370

3,900

3,510

3,230

3,130

3,030

2,760

2,600

2,400

2,270

2,130

1,980

1,840

1,770

_

_

-

Month

October. ...................................

November. ..................................

December ...................................

Calendar year 1941 ......................

January. ...................................

February ...................................

March ......................................

April ................ .....................

Hay. .......................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

1,670

1,630

1,570

1,500

1,450

1,390

1,340

1 , ?20

1,290

1,300

3,610

3,250

2,470

3,520

7,700

5,240

4,580

3,800

3,080

2,740

2,450

2,270

2,060

1,860

1,750

1,630

1,540

1,450

1,380

1,340

1,300

Apr.

1,340

1,330

1,360

2,220

6,290

7,620

a5,500

4,120

3,580

4,380

3,740

3,150

3,150

11,300

10,100

7,480

7,550

8,450

7,100

5,730

4,710

3,930

3,300

2,900

2,590

2,350

2,170

2,190

1,950

1,850

-

Secondfoot-days

6,913

10,096

259,745

1,567,393

242,450

372,510

73,480

133,430

40,335

16,235

7,256

4,898

4,121

1,171,469

May

2,770

2,340

1,950

1,750

1,620

1,510

1,430

1,350

1,300

1,230

1,270

1,280

1,200

1,140

1,150

1,180

1,020

1,050

1,030

976

926

877

859

830

1,020

1,740

1,340

1,150

1,060

1,020

967

Maximum

314

1,400

30,300

43,700

36,600

64,300

7,700

11,300

2,770

913

309

194

166

64,300

June

913

864

818

770

747

732

709

694

671

649

627

606

591

581

584

482

412

406

388

368

377

366

343

354

368

380

382

377

352

324

-

Minimum

188

280

724

140

1,520

1,770

1,290

1,330

830

324

168

112

104

104

July

303

309

293

293

290

275

266

249

251

242

261

270

266

237

228

217

254

219

214

210

184

168

196

196

217

198

208

206

188

180

168

Aug.

172

172

194

192

160

170

176

192

188

186

180

172

168

172

172

174

176

160

123

114

126

132

144

150

144

125

112

116

134

150

152

Mean

223

337

8,379

4,294

7,821

13,300

2,370

4,448

1,301

541

234

158

137

3,210

Sept.

138

119

110

119

134

158

166

164

146

142

146

162

166

162

154

130

112

125

138

146

150

142

119

104

114

126

138

146

136

109

~

Runoff in 

acre-feet

13,710

20,030

515,200

3,109,000

480,900

738,900

145,700

264,700

80,000

32,200

14,390

9,720

8,170

2,324,000

a No gage-height record; discharge computed on baais of record near Healdsburg. 

Note.- Backwater from temporary dam Oct. 1 to Nov. 30 and June 16 to Sept. 30. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
RUSSIAN RIVER BASIN 351

Dry Creek near Cloverdale, Calif.

Location.- Water-stage recorder, lat. 38°45', long. 123°05', in sec. 4, T. 10 N., R. 11 

W., 500 feet downstream from Smith Creek and about 5 miles southwest of Cloverdale. 

Altitude of gage, about 320 feet (from topographic map).

Drainage area.- 96.4 square miles.

Records available.- November 1941 to September 1942.

Extremes.- Maximum discharge during period, 7,540 second-feet Feb. 5 (gage height, 10.02 

feet;, from rating curve extended above 5,000 second-feet on basis of velocity-area 

studies and logarithmic plotting; minimum, 1.4 second-feet Sept. 20.

Remarks.- Records good. No diversions above station.

Rating tables, Nov. 10, 1941, to Sept. 30, 1942 (|

in second-feet

;age height, in feet, and discharge,

1.6

1.7

1.8

1.9 

2.1 

2.3

2.5

6

13

23

53

95

10 to May 25

3.0 

3.4 

3.8 

4.2 

4.6

305

475

695

990

1,370

5.0 1,790

5.5 2,140

6.0 

6.5 

7.0 

7.5 

8.5

2,400

2,740

3,200

3,760

5,080

May 25 to Sept. 30

1.4

1.5

1.2 

2.3 

4.4 

S.3

13.5

21

2.0

2.1

2.2 

2.4 

2.7 

3.0

31

42

56

97

190

300

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

_

_

_

_

-

_

_

_

_

5.5

5.5

5.5

6

7.5

9

10

10

9

8

7.5

6.5

6.5

6.5

6.5

6

6

6

12

262

244

-

Dec.

88

1,080

8S6

221

127

93

73

59

50

41

35

32

496

1,270

2,350

2,980

1,280

1,570

774

581

421

337

470

353

480

385

832

3,120

1,790

809

550

Jan.

398

313

260

224

196

186

942

647

457

365

305

260

227

199

186

180

157

143

132

128

117

532

2,940

3,700

2,120

1,430

1,450

948

702

565

470

Feb.

844

2,490

1,770

3,440

4,850

4,920

2,440

1,370

890

665

520

430

361

317

280

257

231

221

211

190

180

166

154

154

146

141

132

124

-

.

-

Month

October. ...................................

November 10-30 .............................

December ...................................

Calendar year ......................

January ....................................

February ...................................

March. .....................................

April ......................................

May. .......................................

June .......................................

July.. ................... ........ ........

August .....................................

September ..................................

The period. ....... ......................

Peak discharse.- Dec. 16 (9 a.m.) 5,020 s<

Mar.

119

117

112

107

105

100

95

91

91

144

381

168

163

514

520

403

313

263

224

196

174

154

143

132

114

102

93

88

82

75

91

Apr.

80

67

129

510

754

466

317

260

270

337

240

2.11

900

1,050

635

635

708

575

475

381

313

263

227

205

183

168

171

157

143

227

-

Secondfoot-days

645.5

23,633

20,873

27,894

5,474

11,057

3,105

1,029

294.5

101.0

53.5

_

May

177

143

135

124

117

112

105

102

100

100

112

95

93

91

102

91

84

80

75

73

69

67

65

63

280

105

79

74

69

63

60

Maximum

262

3,320

3,700

4,920

520

1,050

280

56

16

5.5

2.3

-

June

56

56

53

52

49

48

46

45

42

41

40

38

36

34

33

31

30

28

28

27

26

24

23

22

22

22

21

20

19

17

-

Minimum

5.5

32

117

124

75

67

60

17

5.5

2.1

1.5

-

July

16

15

14

14

14

13

12

12

11

11

10

10

10

10

10

10

9.5

9.5

9

8.5

8

7.5

6.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

5.5

Aug.

5.5

5

4.7

4.4

4.4

4.4

4.1

3.8

3.8

3.8

3.8

3.6

3.2

3.2

3.2

3.0

2.8

2.8

2.6

2.6

2.5

2.5

2.5

2.5

2.6

2.6

2.5

2.3

2.1

2.1

2.1

Mean

30.7

762

673

996

177

369

100

34.3

9.50

3.26

1.78

-

Sept.

2.1

2.3

2.3

2.3

2.1

2.1

2.0

2.1

2.1

2.0

2.0

1.8

1.7

1.7

1.6

1.6

1.6

1.6

1.5

1.5

1.5

1.5

1.6

1.5

1.6

1.6

1.6

1.6

1.6

1.5

~

Runoff in 

acre feet

1,280

46,880

41,400

55,330

10,860

21,930

6,160

2,040

584

200

106

186,800

c.-ft.j Jan. 23 (8:30 a.m.) 6,820 sec. -ft.; Feb. 5

(2 p.m.) 7,540 sec.-ft.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
352 RUSSIAN RIVER BASIN

Dry Creek near Healdsburg, Calif.

Location.- Wire-weight gage, lat. 38°43'15", long. 122°59'50", near northwest corner of

 Tzabaco Rancho grant, at highway bridge, half a mile downstream from Warm Springs 

Creek, 10 miles northwest of Healdsburg, and about 11 miles upstream from Mill Creek. 

Datum of gage is 189.70 feet above mean sea level, datum of 1929.

Drainage area.- 148 square miles.

Records available.- October 1939 to September 1942 (discontinued).

Extremes.- Maximum discharge during year 9,800 second-feet Jan. 23 (gage height, 13.2

 feet, from floodmarks) from rating curve extended above 4,500 second-feet; minimum, 1.5 

second-feet Sept. 20-25.

1939-42: Maximum discharge, 22,500 second-faet Feb. 28, 1940 (gage height, 16.9 

feet, from graph based on gage readings);no flow Oct. 1 to Dec. 8, 1939. The flood of December 1937 reached stage of 21.8 feet (discharge about 25,000 secondfeet), from floodmarks.

Remarks.- Records good for low water October to November and May to September, poor for

 remainder of year. Gage read twice daily with additional readings in periods of high 

water. No storage or diversion.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

2.4

3.2

3.2

3.2

3.2

3.2

2.8

2.4

2.0

2.0

2.8

2.8

2. 8

3.6

3.6

5.5

12

13

7.5

5

7

Nov.

12

28

26

38

25

14

13

9

9

8

8

9

9

10

10

10

11

10

9

9

9

9

9

9

9

8

7.5

10

461

474

-

Dec.

219

722

1,220

530

400

352

307

280

258

262

262

227

554

1,750

4,320

5,140

1,670

2,000

1,310

1,160

eoo

522

735

722

1,020

670

1,230

5,080

2,300

1,230

892

Jan.

634

468

396

345

300

255

1,700

1,060

742

598

495

440

385

340

315

305

275

245

226

208

199

683

4,820

6,140

3,400

2,350

2,200

: ,540

1,100

885

722

Feb.

735

3,950

2,860

5,980

6,600

6,800

3,440

2,060

1,360

1,070

8^6

688

566

482

413

386

349

326

312

292

280

265

251

251

234

227

224

215

_

_

-

Month

October. ................... ...............

November. ............................ .....

December. ................................ .

Calendar year 1941 ......................

January ....................................

February. ................. ................

March. .....................................

April .......... ...... ....................

May. .......................................

June .......................................

July. ......................................

August ........... ....... .................

September. .................................

Water year 1941-4S ......................

Mar.

210

201

197

192

184

181

175

188

174

199

605

302

292

742

890

518

410

356

330

280

263

244

223

211

203

195

187

183

179

171

187

Apr.

a!60

aloO

a260

al,020

al,500

a930

a600

a 500

590

735

522

468

1,780

2,080

1,200

1,000

1,160

1,010

838

C65

536

441

379

338

306

284

284

250

830

328

-

May

300

225

205

195

185

166

156

151

146

146

166

112

134

126

146

130

122

106

100

95

89

84

84

78

415

175

134

122

110

103

95

fooHays ««!«»

117.2 13

1,302.5 481

38,164 5,140

197,640.5 6,*70

33,771 6,140

41,452 6,800

8,862 890

20,524 2,080

4,631 415

1,492 89

521 25

174.0 11

70.5 3.5

151,081.2 6,800

June

69

64

76

76

71

fi7

65

60

58

56

5fe

52

51

47

45

45

42

42

40

38

38

37

35

34

33

33

33

30

29

28

-

Minimum

2.0

7.5

219

2.0

199

215

171

130

78

28

10

3.5

1.5

1.5

July

25

24

23

22

22

21

21

21

21

20

19

19

18

18

17

18

17

17

17

16

14

13

12

12

11

10

10

11

11

11

10

Aug.

11

10

9.5

8

8

8

8

7.5

7.5

7

7

5

4.6

4.6

3.5

5

4.6

4.6

4.6

4.6

4:6

3.5

4.1

4.1

3.5

4.1

3.5

3.5

3.5

3.5

3.5

Mean

3.78

43 4

"1^231

541

1,089

1,480

286

684

149

49.7

16.8

5.61

2.35

414

Sept.

3.0

3.0

3.5

3.5

3.5

3.5

2.4

.T.O

3.5

3.5

3.0

2.4

?.4

2.f

2.0

2.0

1.7

2.0

2.0

1.5

1.5

1.5

1.5

1.5

1.5

1.7

2.0

2.0

2.0

1.7

-

Runoff in 

acre-feet

232

2,580

75,700

392,000

66,980

82,220

17,580

40,710

9,190

2,960

1,030

345

140

299,700

a No gage-height record; discharge computed on basis of records for station near Cloverdale. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

o convert *ar ti>r'e to standard time, subtract 1 hour.
EEL RIVER BASIN 353 

Lake Pillsbury at Hullvllla, Calif.

Location.- Staff gage, lat. 39°24', long. 1£2°57', on line between sees. 14 and 23, T. 

18 N., R. 10 W., at Scott Dam on Eel River, at Hullvllle, 0.3 mile downstream from 

Rice Fork. Datum of gage Is at mean sea level.

Drainage area.- 288 square miles.

Re cords avallable.- October 1922 to September 1942 (gage heights only prior to October 

1928).

Extremes.- Maximum contents observed during year, 94,400 acre-feet many days In May 

(elevation, 1,910.3 feet); minimum observed, 45,200 acre-feet Nov. 28 (elevation, 

1,884.8 feet).

1922-42: Maximum contents, 95,600 acre-feet May 13, 16, 1925 (elevation, 1,910.8 

feet); minimum, 10 acre-feet Dec. 9, 10, 1931 (elevation, 1,822.5 feet).

Remarks.- Reservoir Is formed by concrete overflow type clam; storage began In December 

1921. Usuable ;apaclt;y, 93,700 acre-feet between elevations 1,822.4 feet (sill of 

outlet gate) and 1,910.0 feet (top of spillway gates) above mean sea level. Water Is 

released down Eel River to Van Arsdale Reservoir, from which It Is diverted through 

tunnel to Potter Valley powerhouse; part Is then used for Irrigation and remainder 

flows Into East Fork of Russian River. Records, based on gage readings made at odd 

times, show contents available for release.

Cooperation.- Gage-height records furnished by Pacific Gas & E: ectrlc Co. In connection 

with a Federal Power Commission project.

Contents In acre-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

_

63,200

62,800

-

_

_

_

60,200

_

58,800

58,400

57,900

_

.

_

57,400

57,000

56,700

56,300

55,800

55,500

_

54,600

54,300

53,900

53,600

53,400

Nov.

53,100

52,700

52,700

52,900

52,900

52,600

52,200

_

..

51,600

51,100

50,800

50,300

49,900

_

49,000

48,80O

48,500

48,200

47 , 900

_

46,800

46,500

46,000

45,500

45,200

45,500

45,500

Dec.

47,4OO

52,200

63,400

65,600

66,900

_

67,700

68,100

68,100

68,100

68,100

67,900

68,100

72,700

79,300

80,300

76,700

79,000

76,500

75 , 500

74,700

73,900

74,500

74,100

73,900

73,700

73,500

74,100

74,100

73,900

73,700

Jan.

73 , 500

73,300

73,100

73,100

73,100

77,600

76,300

75,100

74,500

.

73,900

73,700

73,700

73,500

73,500

73,300

73,300

73,100

73,100

73,500

75,700

77,800

-

77,400

78,400

76,700

75,500

74,900

74,500

Feb.

75,700

77, COO

76,700

79,900

79,000

32,000

78,800

_

75,900

75,300

74,700

74,300

74,100

_

73,900

73,700

73,700

73,700

73 , 500

73,500

_

73,300

73,300

73,300

73,300

73,100

73,100

73, 3 00

_

_

-

Mar.

72,900

72,900

73,100

72,900

72,900

72,900

_

72,900

73,100

73,100

73,100

73,100

73,100

73,100

73,100

73,100

73,100

73,500

73,500

^3, 900

74,100

74,300

74,500

74,700

74,700

74,900

_

_

75,100

Apr.

75,500

75,700

75,900

77,400

-

81,600

83,100

84,2OO

85,300

86,900

_

-

90,300

90,000

90,300

89,100

87 , 300

86,900

87,100

88,000

88,200

90,300

-

91,200

-

.

93,000

92,800

92 , 800

93,300

75,300

May

93 ,300

93,000

_

93,300

93,500

93,500

93,700

93,700

_

-

94,400

94/400

94,200

94,000

94,400

94,400

94,400

94,200

94,200

~

.

94,400

94,400

94,400

94,400

94,000

94,400

94,200

94,200

94,000

June

93,700

94,000

_

-

94,000

_

94,200

94,200

94,000

94,000

94,000

94,000

94,000

94,000

93,700

93,700

93,700

93,700

93,700

93,700

93,700

93,500

93,500

93, 500

93,300

93,000

93,000

93,000

92,800

July

-

-

92,300

92,100

92,100

91,900

91,900

-

-

90 , 900

90,900

90,900

90,700

90 , 500

-

_

89,800

89,800

89,600

89,300

89,100

-

88 , 400

88,200

88,000

87,800

87,500

-

92,8001

| 86,600

Aug.

86,200

S6 , 200

86,000

85,800

-

_

84,900

84,600

84,400

84,000

83,800

-

-

82,700

82,500

82,200

81,800

81 , 400

-

-

80,500

80,300

80,100

79,900

79,500

_

-

78,800

78,400

78,200

77,800

Sept.

77,400

-

-

76,300

76,100

75,900

75,700

75,300

-

-

74,300

74,100

73,900

73,700

73,500

_

-

72,200

72,000

71,800

71,400

71,200

-

-

70,100

69,900

69,700

69,300

-

a68,600

~

a Estimated.

Monthly elevation and contents, water year October 1941 to September 1942

Date Elevation 

(feet)

1,895.7 

1,889.9 

1,885.0 

1,900.8

1,901.2 

1,900.5 

1,901.6 

1,909.8 

1,910.1 

1,909.6 

1,906.9 

1,902.8

-

Contents 

(acre-feet)

63,700 

53,400 

45 , 500 

73,700

-

74,500 

73,100 

75,300 

93,300 

94,000 

92,800 

86,600 

77,300 

t6S,600

-

Change In contents 

during month 

(acre-feet)

-10,300 

-7,900 

1-28,200

-200

+SOO 

-1,400 

+2,200 

+18,000 

+70O 

-1,200 

-6,200 

-8,800 

-9,200

+4,900

tEstimated

Time basis» Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time 

thereafter.To convert war time to standard time, subtract 1 hour.
354 EEL RIVER BASIN

Eel River at Hullvllle, Calif.

Location.- Water-stage recorder, lat. 39°24', long. 122°58', In NEi sec. 22, T. 18 N., 

R. 10 W., half a mile downstream from Scott Dam, half a mile upstream from Soda Creek, 

and half a mile west of Hullvllle. Altitude of gage, about 1,800 feet (from topographic map).

Drainage area.- 289 square miles.

Records available.- November 1922 to September 1942.

Average dlschargeT- 19 years (1923-42), 484 second-feet.

Extremes.- Maximum discharge during year, 19,500 second-feet Feb. 6 (gage height, 17.70 

feet), from rating curve extended above 3,000 second-feet by computations of flow 

over dam; minimum, 10 second-feet Oct. 18 and 19.

1922-42: Maximum discharge, 38,000 second-feet Dec. 11, 1937 (gage height, 22.9 

feet, from floodmarks), from rating curve extended above 3,000 second-feet on basis 

of computed flow over Scott Dam; practically no flow at times.

Remarks.- Records good. Flow regulated by Lake Plllsbury. (See preceding page.) No 

diversions above station.

Cooperation.- Water-stage recorder graph and two discharge measurements furnished by 

Pacific Gas & Electric Co. In connection with a Federal Power Commission project.

Rating tables, water year 1941-42 (gage height, In feet, and discharge, In second-feet) 

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

2.2 10 4.2 258 8.0 2,670 .3.0 66 4.6 394 

2.4 19 4.6 370 10.0 5,050 3.4 118 5.0 534 

2.7 39 5.0 520 12.0 7,800 3.8 190 5.5 754 

3.0 66 5.5 755 14.0 11,100 4.2 282 6.0 1,030 

3.4 114 6.0 1,030 16.5 16,200 Mote.- Same as preceding 

3.8 174 7.0 1,730 table above 6.0 feet.

Discharge, in second- feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

204 

204 

204 

206 

206

206 

204 

202 

202 

202

202 

200 

200 

187 

178

115 

11 

10 

43 

230

234

200 

204 

206 

204

202 

198 

198 

192 

178 

183

Nov.

188 

171 

169 

174 

190

183 

188 

194 

194 

198

200 

200 

200 

200 

200

198 

196 

198 

198

200

200 

198 

196 

196 

200

202 

202 

196 

156 

139

Dec.

171 

114 

77 

94 

132

161 

161 

166 

141 

161

181

181 

187 

490 

7,460

10,200 

5,590 

9,450 

5,500 

3,400

2,190 

1,630 

1,730 

1,430 

1,150

948

915 

1,210 

1,590 

1,260 

994

Jan.

805 

665 

588 

529 

480

a500 

a4,200 

5,380 

3,110 

2,170

1,570 

1,330 

1,130 

994 

888

816 

720 

637 

570 

512

476 

705 

2,530 

4,680 

6,350

5,500 

7,420 

5,270 

3,480 

a2,600 

a2,050

Feb.

2,050 

6,040 

5,640 

9,080 

9,640

16,200 

8,950 

5,610 

3,880 

2,880

2,270 

1,900 

1,620 

1,390 

1,220

1,100 

994 

908 

842 

784

725 

683 

625 

608 

570

534 

504 

478

Month

Octc 

Neve 

Dece

Ca

Janu 

Febr 

Marc 

Apri

UAV

June 

July 

Augu 

Sept

Wa

ber. ...................................

mber. ..................................

lendar year 1941 ......................

ary

h. .....................................

ter year 1941-42 ......................

Mar.

453 

443 

433 

423

416

416 

407 

400 

394 

426

546 

485 

474 

500 

492

504 

515 

523 

426 

294

290 

342 

330 

311 

330

330 

a320 

a300 

290 

280 

270

Apr.

268 

265 

263 

253 

246

246 

248 

248 

248 

248

248 

281 

872 

2,310 

1,660

3,38.0 

2,390 

1,510 

1,160 

1,060

784 

651 

504 

426 

433

429 

740 

725 

474 

681

Secondfoot-days

5,615 

5,726 

59,064

398,924

68,655 

87,725 

12,363 

23,221 

18,546 

8,340 

4,622 

4,552 

4,729

303,158

May

903 

716 

550 

478 

482

457 

446 

423 

440 

467

515 

511 

492 

478 

500

515 

504 

489 

482 

482

504 

526 

511 

500 

1,720

1,130 

550 

665 

740 

701 

669

Maximum

234

202 

10,200

12,200

7,420 

16,200 

546 

3,380 

1,720 

512 

184 

182 

190

16,200

June

512 

420 

433 

436 

388

356 

364 

364 

361 

350

342 

314 

298 

292

270

239

212 

201 

199 

194

188 

186 

186 

190 

192

178 

143 

143 

205 

184

Minimum

10 

139 

77

10

476 

478 

270 

246 

423 

143 

80 

86 

85

10

July

176 

172 

159 

123 

126

178 

184 

184 

184 

148

86 

86

174 

163 

157

157 

139 

80 

89 

180

176 

170 

166 

147 

85

93

174 

165 

165 

166 

170

Aug.

93 

100 

182 

163 

156

157 

166 

93 

100 

178

178 

178 

178 

159 

89

94

178 

178 

178 

176

161 

86

97 

178 

163

170 

170 

159 

96 

111 

182

Mean

181 

191 

1,905

1,093

2,215 

3,133 

399

774 

598 

278 

149 

147 

158

831

Sept.

182 

186 

184 

165 

85

98

188 

190 

184 

182

165 

101 

110 

170 

174

174 

170 

165 

108 

111

170 

176 

180 

182 

168

101 

104 

186 

186 

184

Runoff in 

acre-feet

11,140 

11,360 

117,200

791,300

136,200 

174,000 

24,520 

46,060 

36,790 

16,540 

9,170 

9,030 

9,380

601,400

a No gage-height record; discharge computed on basis of unpublished record at Scott Dam. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
EEL RIVER BASIN 

Eel River at Van Arsdale Dam, near Potter Valley, Calif.

355

Location.- Water-stage recorder, lat. 39°23', long. 123°07', in NEi sec. 30, T. 18 N., 

R. 11 W., 500 feet dovmstream frcm Van Arsdale Dam and 5 miles north of town of 

Potter Valley. Altitude of gage, about 1,400 feet (from topographic map).

Drainage area.- 347 square miles.

Records available.- October 1927 to September 1942. November 1909 to September 1922 

(combined monthly discharge, only, of Eel River at this station and Snow Mountain 

Water & Power Co.'s tailrace near Potter Valley) and October 1922 to September 1927, 

from records of spill over dam.

Average discharge.- 19 years (1922-26, 1927-42), 352 second-feet.

Extremes.- Maximum discharge during year, 22,700 second-feet Feb. 6 (gage height, 20.80 

feet, from rating curve extended above 9,100 second-feet by computations of flow over 

dam; minimum, 0.6 second-foot Nov. 10.

1909-42: Maximum discharge, about 40,000 second-feet Mar. 26, 1928 (gage height, 

27.0 feet), from rating curve extended above 1,500 second-feet on basis of computed 

flow over Van Arsdale Dam; maximum gage height, 30.9 feet on Dec. 11, 1937; minimum 

discharge, 0.3 second-foot Oct. 16, 17, Dec. 21, 22, 1939.

Remarks.- Records good above 5 second-feet and fair below. Water is diverted from Van 

Arsdale Reservoir through tunnel to power plant in Potter Valley, after which part is 

used for irrigation and remainder flows into East Fork of Russian River. Records 

given herein represent flow passing dam down Eel River.

Cooperation.- Water-stage recorder graph and two discharge measurements furnished by 

Pacific Gas & Electric Co. In connection with a Federal Power Commission project.

Rating tables, water year 1941-42 (gage height, In feet, and discharge,

in second-feet) 

Oct. 1 to Dec. 16 Dec. 17 to Sept.

3.4 0.5 4.8 128 7.0 798 12.0 4,800 3.4 2.2 4.2 47 

3.6 2.5 5.0 164 7.5 1,020 14.0 7,700 3.6 6 4.4 70 

3.8 10 5.3 230 6.0 1,250 16.0 11,300 3.8 14 4.6 97 

4.0 23 5.6 308 8.5 1,510 18.0 15,600 4.0 28 4.8 128 

4.2 42 5.9 398 9.0 1,830 20.8 22,700 Note.- Sane as preceding 

4.4 67 6.2 496 1O.O 8,650 table-above 4.8 feet. 

4.6 96 6.6 640 11.0 3,650 

Discharge, in second feet, water year October 1941 to September 1942

Day

1 

2 

3 

4

5

6 

7 

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.

4.6 

4.6 

4.3 

4.3 

4.3

4.3 

4.3 

4.0 

3.7 

3.4

3.4 

3.4

3.1 

2.8 

4.9

4.0 

1.4 

70 

13 

5.5

11 

7 

2.2 

2.5 

2.8

3.7 

5.5 

5.5 

4.9 

2.8 

3.7

Nov.

6.5 

8 

5.5 

3.8 

3.7

3.7 

2.2 

1.0 

.8 

.6

1.0 

1.8 

2.2 

2.5 

2.5

4.0 

6 

5.5 

4.9 

6.5

7 

6.5 

5 

4.3 

3.4

4.0 

4.6 

5.5 

39 

31

Dec.

7.5 

687 

446 

68 

13

26 

12

8.5 

14 

19

6.5 

6.5 

125 

678 

8,010

11,500 

6, SCO 

11,200 

6,010 

3,580

8,300 

1,660 

1,840 

1,490 

1,180

952 

922 

1,350 

1,720 

1,350 

1,060

Jan.

840 

686 

584 

510 

456

496 

4,740 

5,530 

3,100 

2,150

1,620 

1,320 

1,100 

948 

836

762 

655 

566 

496 

436

398 

667 

2,570 

4,860 

6,680

5,730 

8,370 

5,730 

3,650 

2,710 

2,130

Feb.

2,120 

6,460 

6,150 

10,700 

10,900

18,800 

10,800 

6,440 

4,300 

3,160

2,420 

1,960 

1,610 

1,350 

1,180

1,050 

926 

832 

758 

706

640 

588 

520 

506 

459

433 

385 

351

Month

Ooto 

Nove 

Decs

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

ber. ...................................

lendar year 1941 

ary

1. .....................................

ter year 1941-42 ...............

Mar.

325 

308 

297 

277 

259

259 

249 

240 

235 

264

404 

351 

322 

379 

372

385 

404 

417 

334 

194

148 

199 

202 

160

180

180 

157 

144 

132 

122 

114

Apr.

2 

1

3 

2

1 

1 

1

Secondfoot days

204.9 

183.0 

64 , 561 . 0

380,612.2

71,326 

96,504 

8,013 

20,988 

14,339 

3,370.5 

147.5 

123.0 

121.5

279,881.4

Peak discharge.- Dec. 18 (12 m.) 13,800 sec. -ft.; Dec

109 

106 

125 

244 

275

211 

170 

155 

150 

153

i41 

133 

471 

,320 

,850

,060 

,520 

,640 

,180 

,000

806 

598 

479 

345 

333

328 

517 

682 

360 

527

May *

836 

617 

479 

366 

354

328 

305 

294 

280 

314

382 

376 

342 

322 

372

376 

360 

342 

328 

319

333

354 

342 

325 

1,390

1,110 

456 

548 

636 

598 

555

Maximum

70 

39 

11,500

13,200

8,370 

18,800 

417 

3,060 

1,390 

433 10 ' 

5.5 

5

18,800

June

433 

291 

294 

288 

252

191 

195 

193 

184 

178

164 

141 

118 

110 

94

63 

44 

14 

16 

12

11 

9.5 

9 

9 

9

9 

9 

9 

11 

10

Minimum

1.4 

.6 

6.5

.6

398 

351 

114 

106 

280 

9 

3.5 

2.7 

2.7

.6

July

10 

8.5 

8 

7 

6.5

6.5 

6 

5.5 

5 

4.8

4.5 

4.5 

4.2 

4.0 

3.8

3.8 

3.5 

3.5 

3.5 

3.5

3.8 

3.8 

3.8 

3.8 

3.5

3.5 

3.5 

3.8 

3.8 

3.8 

3.8

Aug.

4.0 

4.0 

4.2 

4.0 

4.0

3.8 

3.5 

3.8 

3.5 

3.5

4.2

5 

5 

5.5 

4.8

4.2 

3.5 

3.8 

4.2

5

5 

4.5 

3.5 

3.2 

3.1

2.8 

2.7 

3.1 

3.8 

3.8 

4.0

Sept.

4.2 

4.5 

5 

5 

4.8

5.4 

2.8 

3.1 

3.8 

4.2

4.5 

4.2 

4.0 

4.0 

3.5

3.4

3.2 

2.8 

2.7 

3.2

4.0 

3.8 

4.2 

4.8 

4.8

4.5 

4.5 

4.8 

4.8 

5

u Runoff in Mean aore-feet

6.61 406 

6.10 363 

2,083 128,100

1,043 755,000

2,301 141,500 

3,447 191,400 

258 15,890 

700 41,630 

463 28,440 

112 6,690 

4.76 293 

3.97 244 

4.05 241

767 555,200

. 18 (6 a.m.) 13,300 sec. -ft.; Jan. 7 (8 p.m.)

8,030 sec.-ft.; Jan. £7 (10 a.m.) 9,150 sec.-ft.; Feb. 4 (1 p.m.) 12,700 sec.-ft.; Feb. 6 (5 a.m.) 

22,700 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
 356 EEL RIVER BASIN

Eel River at Scotia, Calif.

Location.- Water-stage recorder, lat. 40°29', long. 124°06', in sec. 7, T. 1 N., R. IE., 

at bridge on U. S. Highway 101, half a mile north of Scotia, and about 6 miles upstream 

from Van Duzen River. Datum of gage is 36.21 feet above mean sea level, datum of 1929.

Drainage area.- 3,070 square miles.

Recordsavailable.- December 1910 to February 1915, October 1916 to September 1942.

Average dlschargeT- 29 years (1911-14, 1916-42), 6,321 second-feet.

Extremes.- Maximum discharge during year, 209,000 second-feet Feb. 6 (gage height, 42.2 

feet); minimum, 100 second-feet Sept. 20.

1910-15, 1916-42: Maximum discharge, 345,000 second-feet Dec. 11, 1937 (gage 

height, 55.1 feet), based on 1940 rating; maximum stage observed, 55.5 feet Feb. 2, 

1915; minimum discharge observed, 10 second-feet Aug. 12-14, 1924.

Remarks.- Records good. Flow regulated by Lake Pillsbury. Diversions above station for 

power and irrigation near Potter Valley.

Rating tables, water year 1941-42 (gage height, in feet, and discharge, in second-feet) 

Oct. 1 to Dec. 3 Dec. 4 to Sept. 30

10.1

10.5

11

12

135

195

320

485

700

9SO

1,470

2,370

4,50O

13.5

15

17

19

22

25

2S

8,220

12,700

20,300

29,600

45,400

62,200

80,500

101,000

10

10.5

11.6

12.5

105

175

335

595

880

1,490

2,25O

3,360

5,300

9,O40

15,100

23,000

32,500

49,000

72,000

101,000

136,000

186,000

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

156 

150 

138 

141 

150

144 

144

144 

147 

144

147 

159 

165 

165 

165

162 

165 

183 

219 

219

219 

207 

192 

1S3 

186

195 

247 

325 

355 

345 

360

Nov.

355 

449 

862 

1,530 

1,330

1,110 

745 

571 

485 

414

370 

345 

335 

392 

817

2,430 

3,420 

3,250 

2,170 

1,460

1,090 

871 

718 

636 

571

524 

485 

467 

550 

4,860

Dec.

7,040 

28,300 

101,000 

33,600 

15,700

10,300 

7,560 

a6 , 200 

4,820 

4,250

3,660 

3,220 

3,300 

18,90O 

42,300

120,000 

97,600 

161,000 

104,000 

59,000

40,800 

29 , 400 

28,800 

27,800 

21,100

17,200 

15,500 

17,400 

20,400 

17,400 

14,500

Jan.

12,300 

10,300 

9,120 

8,230 

7,380

6,860 

32,500 

69,900 

39,600 

25,100

18,600 

15,100 

12,800 

11,100 

9,780

9,480 

8,680 

7,610 

6,91O 

6,280

5,760 

5,970 

15,500 

34,300 

55,300

45,300 

58,200 

55,000 

40,500 

28,200 

22,400

Feb.

21,000 

50,500 

69 , 500 

119,000 

100,000

184,000 

131,000 

76,300 

48,700 

34,400

25,600 

20,200 

16,8OO 

14,300 

12,400

11,100 

9,840 

8,910 

8,260 

7,640

7,100 

6,600 

5,090 

5,850 

5,850

5.44O 

5,040 

4,730

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Wa

mber

lendar year 1941

ter year 1941-42 . . ...................

Peak discharge.- D

(4 p.m. ) 198,000 sec

Mar.

4,490 

4,220 

4,070 

3,960 

3,840

3,780 

3,780 

3,680 

3,580 

3,580

4,050 

4,620 

4,620 

5,200 

6,570

6,620 

6,600 

6,260 

5,780 

5,200

4,640 

4,200 

3,960 

3,840 

3,660

3,460 

3,280 

3,140 

3,000 

2,890 

2,870

Apr.

3,080 

3,200 

3,320 

4,750 

8,000

9,950 

7,920 

6,600 

5,900 

5,830

5,850 

5,440 

5,970 

16,100 

35,100

23,100 

25,OOO 

23,400 

18,20O 

15,200

13,100 

11,400 

9,840 

8,600 

7,560

6,930 

6,670 

7,350 

7,27O 

6,980

Secondfoot-days

6,021 

33,612 

1,082,050

4,316,118

694,060 

1,016,150 

133,440 

317,610 

241,130 

102,670 

22,106 

8,505 

4,573

3,661,927

May

11,000 

9,620 

7,920 

7,12O 

6,450

5,950 

5,660 

5,400 

5,4OO 

5,300

5,680 

6,240 

5,540 

4,97O 

5,350

6,210 

6,O2O 

5,42O 

5,020 

4,770

4,880 

4,970 

4,910 

4,530 

10,800

21,000 

14,000 

13,600 

14,800 

12,800 

10,400

Maximum

360 

4,860 

161,000

161,000

69,900 

184,000 

6,620 

35,100 

21,000 

8,940 

1,190 

407 

183

184,000

June

8,940 

8,000 

7,120 

6,400 

5,880

5,420 

4,970 

4,530 

4,220 

3,900

3,680 

3,440 

3.22O 

2,960 

2,780

2,640 

2,490 

2,320 

2,150 

2,010

1,870 

1,810 

1,720 

1,660 

1,560

1,520 

1,450 

1,410 

1,330 

1,270

Minimum

138 

335 

3,820

138

5,760 

4,730 

2,370 

3,080 

4,530 

1,270 

424 

163 

105

105

July

1,190 

1,160 

1,070 

946 

870

880 

880 

860 

840 

810

780 

761 

742 

732 

7O4

685 

667 

658 

649

631

604 

586 

568 

550 

583

505 

487 

469 

442 

433 

424

Aug.

407 

407 

399 

375 

367

359 

351 

327 

327 

319

311 

3O3 

295 

295 

279

263 

255 

239 

223 

215

207 

207 

199 

191 

191

199 

2O7 

207 

207 

191 

183

Mean

194 

1,120 

34,900

11,820

22,390 

36,290 

4,305 

10,590 

7,778 

3,422 

713 

274 

Ih2

10,030

Sept.

175 

183 

183 

168 

175

175 

168 

168 

161 

161

168 

168 

168 

161 

161

161 

161 

161 

161 

154

140 

126 

126 

119 

112

119 

140 

126 

119 

105

Runoff in 

acre feet

11,940 

66,670 

2,146,000

8,561,000

1,377,000 

2,016,000 

264,700 

630,000 

478,300 

203,600 

43,850 

16,870 

9,070

7,264,000

ec. 3 (9:30 a.m. 125,000 sec. -ft.; Dec. 16 (9:30 p.m.) 152,000 sec. -ft.; Dec. 18 

.-ft.; Jan. 8 (6 a.m.) 83,600 sec. -ft.; Feb. 4 (7 p.m.) 150,000 sec. -ft.; Feb. 6

(2 p.m.) 209,000 sec.-ft.

a No gage-height record; discharge interpolated.

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
EEL RIVER BASIN 357

Potter Valley powerhouse tailrace near Potter Valley, Calif.

Location.- Electrical output meters, lat. 39°21', long. 123°07', in NWi sec. 6, T. 17 N., 

R. 11 W., at powerhouse of Pacific Gas & Electric Co., 3 miles northwest of town of 

Potter Valley. Altitude of gage, about 1,000 feet (from topographic map).

Records available.- October 1922 to 'September 1942. 

Average discharge.- 20 years, 192 second-feet.

Extremes.- Maximum daily discharge during year, 215 second-feet at times each month from 

October to June; no flow Oct. 19.

1922-42: Maximum daily discharge, 321 second-feet Aug. 26, 1933; no flow at times 

in several years.

Remarks.- This water is diverted from Eel River above Van Arsdale dam; after passing 

through power plant, part of it is used for irrigation In Potter Valley and remainder 

flows into East Fork of Russian River. Water for irrigation diverted from tailrace 

is included in tables of discharge.

Cooperation.- Record of daily discharge computed from powerhouse output, furnished by 

Pacific Gas & Electric Co. In connection with a Federal Power Commission project.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

5

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

Oct.

206

215

215

215

215

215

215

215

215

215

215

215

215

215

19B

215

90

18

0

29

188

205

215

215

215

215

215

215

215

215

215

Nov.

215

215

215

215

215

205

205

215

215

215

215

205

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

Dec.

215

215

215

215

205

215

215

214

195

148

215

215

215

215

215

215

215

215

21fa

215

215

215

215

215

215

215

215

215

215

215

215

Jan.

215

215

215

215

198

215

212

211

211

211

211

211

211

211

211

212

215

215

215

215

' 215

215

215

215

215

215

215

21b

215

215

215

Feb.

215

215

215

208

215

215

215

209

215

215

215

215

215

215

215

215

215

215

214

215

215

215

215

215

215

177

215

215

_

_

-

liar.

215

215

215

203

215

215

215

215

215

215

215

215

215

207

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

Apr.

215

215

215

215

215

210

215

213

215

215

215

215

215

214

21E

21E

21E

215

21E

21E

21E

21E

21 e

21E

21E

81E

21£

21 J

21J

21£

-

May

215

215

215

215

215

215

215

200

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

174

215

215

215

215

June

215

215

212

215

215

215

215

215

215

20S

215

215

215

215

215

215

215

215

215

215

215

215

215

215

215

194

152

119

170

186

-

July

166

166

176

120

120

171

171

186

186

186

91

91

146

159

151

153

159

91

91

14S

159

159

159

159

91

91

157

169

159

159

159

Aug.

91

91

159

159

146

159

159

91

91

159

156

159

159

159

91

91

159

159

159

147

159

91

91

158

159

157

159

156

91

91

156

Sept.

156

156

155

159

91

91

159

159

159

158

159

91

91

159

159

159

159

159

91

91

159

159

159

159

159

91

91

159

159

159

~

Month

March. .....................................

April ......................................

Ha v

Water year 1941-42 ......................

Secondfoot-days

70,331

Maximum

OT c

215

Minimum

119

0

Mean

190

213

140

193

Runoff in 

acre- feet

11,660

137,500

13,110

13,180

12,780

13,110

12,270

8,360

3,360

139,500

_____aai3! Pacific standard time 

To convert war time to standard tin

prior to 2 a.m., Feb. 

, subtract 1 hour.

1942; Pacific war time thereafter.
358 EEL RIVER BASIN

South Fork of Eel River near Miranda, Calif.

Location.- Staff gage, lat. 40°12', long. 123°46', in NWi sec. 30, T. 3 S., R. 4 E., at 

Sylvandale camp grounds on U.S. Highway 101, 0.9 mile south of Rocky Glen Creek, 6 

miles south of Miranda, and about 20 miles upstream from mouth.

Drainage area.- 547 square miles.

Records available.- May 1940 to September 1942.

Extremes.- Maximum discharge observed during year, 66,000 second-feet Dec. 18 (gage height, 

26.3 feet), from rating curve extended above 30,000 second-feet by logarithmic plotting; 

minimum observed, 21 second-feet Sept. 19, 20.

1940-42: Maximum discharge, that of Dec. 18, 1941; minimum observed, 16 second-feet 

Sept. 2, 1940.

Remarks.- Records fair. Gage read twice daily, with additional readings in periods of high 

water. No diversions; low flow regulated at Benbow Dam and powerhouse.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

31

49

53

51

54

53

57

54

54

55

55

55

56

56

54

84

92

93

95

93

93

56

55

56

61

63

85

148

105

93

93

Nov.

136

265

321

386

277

198

150

134

105

87

78

79

87

142

669

1,010

934

654

434

303

231

198

177

162

154

148

125

125

310

1,990

-

Dec.

1,200

14,900

17,500

5,540

3, £00

2, £00

1,760

1,470

1,260

1,110

989

887

998

4,230

10,700

28,800

20,800

50,700

22,100

13 , 800

9,230

6,900

7,440

5,680

4,560

3,530

3,560

4,060

3,730

2,940

2,450

Jan.

2,030

1,680

1, 470

1.290

1,170

1,220

17 , 400

14,500

8,080

5,360

3,920

3,010

2,450

2,110

1,890

2,020

1,690

1,540

1,390

1,290

1,180

1,510

4,760

7,380

10,300

7,880

12,000

10,700

7,180

5,300

4,160

Feb.

4,300

11,300

16,400

37,900

27,500

41,600

£4,300

14,600

9,400

6,750

5,170

4,070

3,290

2,730

2,340

2,030

1,810

1,670

1,540

1,450

1,330

1,240

1,150

1,250

1,180

1,100

1,020

960

_

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January ....................................

February. ..................................

March. .....................................

April ......................................

tlau ay ........................................

June .......................................

July. ......................................

August .....................................

September. .................................

Water year 1941-42 ......................

Mar.

910

860

830

800

755

728

694

678

662

654

773

800

830

1,140

1,430

1,340

1,310

1,180

1,070

990

900

830

800

755

719

694

662

638

615

600

615

Apr.

1

1

1

1

1

1

1

1

6

7

5

5

5

4

3

2

2

1

1

1

1

1

1

1

1

Second 

foot-days

2,152

10,169

258 * 224

91 2*, 880

147,860

229,380

26 ,26S

70,480

54,948

26,168

6,492

3,044

1,847

836,926

646

608

746

,200

,850

,770

,410

,210

,160

,120

980

920

,520

,160

,650

,470

,700

,470

,240

,390

,690

,220

,910

,720

,560

,450

,450

,440

,300

,520

-

May

2,150

1,600

1,430

1,320

1,240

1,160

1,090

1,020

970

970

1,080

1,100

960

900

1,030

1,1*50

1,000

920

870

810

782

746

702

678

5,400

5,400

3,500

4,800

4,260

3,300

2,610

Maximum

148

1,990

50 , 700

50,700

17,400

41,600

1,430

7,650

5,400

2,200

355

146

97

50,700

June

2,200

1,910

1,710

1,550

1,400

1,310

1,230

1,140

1,070

1,010

910

860

810

791

737

694

654

615

578

548

522

496

478

466

454

442

424

408

386

365

-

Minimum

31

78

887

31

1,170

960

600

608

678

365

146

31

31

July

355

330

212

172

264

256

264

256

252

236

228

224

220

216

216

208

208

204

200

190

182

179

176

168

162

159

153

150

153

153

146

Aug.

146

140

129

129

126

118

110

112

107

105

110

110

110

110

110

100

76

70

70

70

68

70

70

95

102

93

102

76

70

72

68

Mean

69.4

336

8,330

2,501

4,770

8,192

847

2,349

1,773

872

209

98* 2

61.6

2,293

Sept.

83

63

93

97

72

68

65

65

63

59

68

63

65

63

68

57

76

34

32

48

52

42

32

68

79

59

31

31

61

90

-

Runoff in 

acre- feet

4,270

19,970

512,200

1,811,000

293,300

455,000

52,090

139,800

109,000

51,900

12,880

6,040

3,660

1.660,000

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.

To convert war time to standard time, subtract 1 hour.
EEL RIVER BASIN 359

Van Duzen River at Brldgevllle, Calif.

Location.- Wire-weight gage, lat. 40°28'05", long. 123°47'55", in NWi sec. 13 T. 1 N.,

 R. 3 E., at highway bridge at Brldgevllle, 1 mile downstream from Little Larrabee 

Creek. Datum of gage is 590.66 feet above mean sea level, datum of 1929.

Drainage area.- 200 square miles.

Records available.- September 1911 to August 1913, December 1939 to September 1942.

Extremes.- Maximum discharge during year, 19,200 second-feet Dec. 18 (gage height, 24.0

 feet, from stage graph) from rating curve extended above 12,000 second-feet by 

logarithmic plotting; minimum observed, 7.5 second-feet Sept. 23, 24.

1939-42: Maximum discharge, that of Dec. 18, 1941; minimum, 7.5 second-feet Aug. 29 

to Sept. 2, Sept. 10, 1940, Sept. 23, 24, 1942.

The flood of December 1937 reached a stage of about 24.1 feet, from flcodmarks.

Remarks.- Records fair. Wire-weight gage read twice dally, with additional readings in

 periods of high water. No large diversions.

Rating tablea, water year 1941-42 (gage height. In feet, and discharge. In second-feet) 

Oct. 1 to Dec. 17 Dec. IS to Sept 30

'3.1 8 4.0 91 7.0 1,230 3.0 7 3.8 66 6.0 

3.2 12 4.2 129 8.0 1,840 3.1 10 4.0 98 7.0 

3.3 17 4.4 172 10.0 3,140 3.2 15 4.2 136 9.0 

3.4 23 4.8 264 12.0 4,630 3.3 20 4.5 204 10.0 

3.5 31 5.2 370 14.0 6,380 3.4 26 5.0 330 

3.6 39 5.6 513 17.0 9,600 3.6 43 5.5 510 

3.7 49 6.0 690 20.5 14,100 Note.- Same aa preceding tabl 

3.8 61 6.5 950 10 toot.

Discharge, In second- feet, water year October 1941 to September 1942

Day!

1 

2 

3 

4 

5

6 

7 

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 

10 

10 

10 

10

10 

10 

10 

10 

10

10 

12 

14 

15 

14

14 

14 

14 

14 

16

15 

15 

8.5 

25

14

16 

19 

72 

49 

37 

31

Nov.

33

78 

304 

133 

78

56 

39 

41 

33 

33

33

29 

29 

91 

401

790 

558 

343 

224 

172

127 

107 

95 

81 

72

67 

61 

61 

221 

1,410

Dec.

690 

11,100 

7,610 

3,000 

1,930

1,270 

873 

672 

542 

486

397 

314 

781 

3,280 

8,090

13,400 

8,170 

14,000 

6,730 

5,200

3,280 

2,560 

2,910 

2,330 

1,850

1,450 

1,320 

1,180 

1,060 

951 

880

Jan.

750 

695 

626 

586 

550

937 

8,840 

6,010 

2,980 

2,060

1,600 

1,300 

1,070 

905 

760

720 

622 

577 

530 

502

434

640 

2,210 

4,710 

4,470

3,770 

6,010 

3,770 

2,650 

2,150 

1,880

Feb.

2,300 

6,190 

6,780 

10,600 

8,770

10,600 

7,230 

4,190 

2,560 

2,170

1,740 

1,400 

1,140 

973 

865

800 

740 

690 

670 

645

550 

502 

474 

502 

458

423 

406 

381

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Marc 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ...................................

lendar year 1941 

ary

h. .................................. . .

ter year 1941-42 ... ...........

Mar.

354 

342 

333 

321 

312

306 

306 

295 

290 

348

470 

438 

478 

514 

518

498 

685 

650 

586 

534

502 

462 

423 

392 

374

339

312 

295 

281 

274 

295

Apr.

430 

342 

510 

1,080 

1,430

930 

740 

640 

665 

650

582 

542 

715 

2,780 

2,620

2,180 

2,030 

1,800 

1,470 

1,320

1,140 

940 

790 

680 

604

542 

586 

690 

631 

940

May

1,160 

840 

690 

680 

586

546 

518 

462 

453 

454

595 

622 

526 

490 

685

604 

550 

494 

446 

430

426 

420 

345 

430 

4,940

3,320 

2,120 

3,560 

2,300 

1,650 

1,250

forays «"! 

539.5 72 

5,800 1,410 

108,306 14,000

374,772.5 14,000

65,314 8,840 

74,749 10,600 

12,527 685 

30,999 2,780 

32,597 4,940 

9,475 920 

1,790 100 

526 28 

290.0 12

342,912.5 14,000

June

920 

810 

720 

650 

595

526 

470 

416 

370 

339

306 

281 

266 

242 

226

218 

204 

190 

185 

173

165 

154 

147 

140 

143

136 

132 

124

116 

109

Minimum

8.5 

29 

314

8.5

434 

381 

274 

342 

345 

109 

29 

12 

7.5

7.5

July

100 

95

88 

84 

3]

78 

75 

75 

72 

69

66 

64 

59 

60 

56

56 

56 

54 

51 

47

46 

45 

41 

38 

38

36 

35 

33 

32 

31 

29

740 

1,280 

2,490 

3,140

B above

Aug.

28 

23 

26 

25 

24

22 

21 

21 

20 

20

19

18 

18 

16 

16

15 

15

14 

14 

13

13 

12 

12 

12 

12

12 

12 

12 

12 

12 

12

Mean

17.4 

193 

3,494

1,027

2,107 

2,670 

404 

1,033 

1,052 

316 

57.7 

17.0 9.6'

939

Sept.

11 

11 

11 

11 

10

10 

10 

1011

12

12 

12 

11 

10 

10

9.5 

9.5 

9 

9

a

8 

8 

7.5 

8.5 

8.5

8.5 

8.5 

8.5 

8.5 

8.5

Runoff in 

acre-feet

1,070 

11,500 

214,800

743,300

129,500 

148,300 

24,850 

61,490 

64,660 

18,790 

3,550 

1,040 

575

680,100

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter.
360 KLAMATH RIVER BASIN 

Williamson River below Sprague River, near Chiloquin, Oreg.

Location.- Water-stage recorder, lat. 42°34', long. 121°52', in sec. 3, T. 35 S., R. 7 E., 

a quarter of a mile downstream from mouth of Sprague River and three-quarters of a 

mile southwest of Chiloquin. Datum of gage is 4,155.66 feet above mean sea level, 

datum of 1929.

Drainage area.- 3,000 square miles.

Records available.- June 1917 to September 1942.

Average discharge.- 25 years, 839 second-feet.

Extremes.- Maximum discharge during year, 2,470 second-feet Apr. 19, 20 (gage height, 4.28 

feet); minimum, 467 second-feet Aug. 24, 25 (gage height, 2.21 feet).

1917-42: Maximum discharge, 7,680 second-feet Apr. 22, 1938 (gage height, 7.27 

feet); minimum, 320 second-feet Oct. 14, 1920.

Remarks.- Records good. Diversions above station for irrigation. Manipulation of gates 

at dam above station causes fluctuation at times.

Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power 

Co.

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

549

555

566

572

572

578

573

578

544

549

555

560

555

555

555

572

714

627

578

566

560

566

566

566

572

578

596

584

584

596

608

Nov.

608

60S

60S

614

614

614

614

614

620

614

614

614

608

620

614

620

627

648

676

698

698

683

669

655

641

634

627

627

620

620

-

Dec.

620

641

669

676

683

730

797

908

955

936

870

806

746

738

730

797

806

917

1,040

1,140

1,170

1,240

1,350

1,500

1,400

1,310

1,230

1,020

955

1,020

842

Jan.

669

730

762

738

722

714

714

730

722

722

730

730

730

a720

a690

754

706

690

669

676

627

641

662

676

683

706

833

1,040

1,170

1,640

1,920

Feb.

2,180

2,300

1,970

1,730

1,640

1,610

1,620

1,570

1,510

1,490

1,490

1,430

1,320

1,240

1,160

1,080

985

908

851

833

806

770

754

746

722

722

722

722

_

-

-

Mar.

730

730

722

722

738

762

788

815

851

908

965

1,040

1,120

1,210

1,290

,360

,380

,330

,260

,210

,200

,200

,210

,240

,300

,390

,480

,560

,580

1,570

1,580

Apr.

1,620

1,680

1,790

1,920

1,990

2,010

2,030

2,040

2,030

1,990

1,940

1,890

1,880

1,910

1,980

2,100

2,210

2,340

2,460

2,440

2,330

2,180

2,040

1,930

1,880

1,880

1,930

1,930

1,890

1,850

-

May

1,320

1,800

1,760

1,720

1,670

1,640

1,580

1,530

1,500

1,450

1,400

1,380

1,380

1,390

1,420

1,440

1,460

1,460

1,460

1,430

1,400

1,360

1,320

1,260

1,260

1,260

1,270

1,330

1,390

1,450

],550

June

1,660

1,800

1,930

1,930

1,850

1,730

1,620

1,530

1,500

1,440

1,380

1,310

1,260

1,200

1,120

1,040

985

965

946

779

714

714

714

706

690

669

662

662

676

730

-

July

754

706

669

648

641

614

608

596

584

560

544

549

555

572

523

485

503

518

523

528

544

578

560

544

534

528

528

523

518

518

512

Aug.

512

512

512

512

534

539

534

534

539

528

523

523

518

518

523

528

528

528

528

512

494

494

476

467

472

481

494

503

507

507

512

Sept.

512

512

518

518

518

523

534

534

523

518

518

518

518

518

534

534

555

590

560

539

523

528

534

549

544

539

539

539

534

534

-

Month

Calendar year 1941 ......................

March. .....................................

April. .....................................

May. .......................................

Water year 1941-42 ......................

Secondfoot-days

17,854

18,941

29,242

290,067

60,090

45,540

34,912

351,033

Maximum

714

698

1,500

1,520

2,460

1,820

539

590

2,460

Minimum

544

608

620

476

722

1,620

1,260

662

467

512

467

Mean

576

631

943

795

804

1,246

1,137

2,003

1,469

1,164

513

532

962

Runoff in 

acre-feet

35,410

37,570

58,000

575,300

49,420

69,190

69,900

119,200

90,330

69,250

34,840

31,520

31,650

696,300

a No gage-height record; discharge computed on basis of weather records and recorded range of 

stage.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
KLAMATH RIVER BASIN 361

Upper Klamath Lake near Klamath Falls, Oreg.

Location.- Water-stage recorder, lat. 42°15', long. 121°4Q T , in SWi sec. 19, T. 38 S., 

R. 9 E., 1 mile upstream from outlet of Upper Klamath Lake and 2 miles northwest of 

Klamath Falls. Datum of gage Is 4,098.22 feet above mean sea level, datum of 1929, or 

4,100.00 feet above datum of Bureau of Reclamation. Gage readings have been reduced 

to elevations above Bureau of Reclamation datum.

Records available.- Hay 1904 to September 1942.

Extremes.- Maximum elevation during year, 4,143.79 feet -apr. 21; minimum, 4,137.73 feet 

Nov. 13. Maximum daily mean elevation, 4,143.23 feet Apr. 22: minimum dally mean, 

4,138.33 feet Nov. 13.

1904-42: Maximum elevation recorded, 4,144.98 feet about Apr. 20, 1904, determined 

from high-water marks; minimum recorded, 4,135.6 feet Oct. 9, 1926, at Buena Vista 

Landing; maximum and minimum mean dally elevations occurred during periods when 

recorder was not In operation.

Remarks.- Reservoir Is formed by concrete dam at outlet of natural lake, completed In 

1921, replacing a temporary dam built in 1919; storage began Apr. 15, 1919. Capacity, 

584,000 acre-feet between elevations 4,135.0 and 4,143.3 feet. Dead storage below 

elevation 4,135 feet not known; lake level ordinarily maintained between elevations 

4,137 (contents, 118,600 acre-feet) and 4,143.3 feet. Water stored may be diverted 

through "A" canal for Irrigation of land under Klamath Falls project of Bureau of 

Reclamation, or released to Link River through dam or power plants at Klamath Falls. 

Area of lake at high stages is partly controlled by diking. Lake elevations, 

particularly extremes, are very much affected by wind. Contents given herein represent 

those above elevation 4,135. feet.

Cooperation.- Capacity table and water-stage recorder Inspections furnished by The 

California Oregon Power Co.

Elevation, In feet, water year Octobai- 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

39.37

39.30

39.16

39.28

39.11

39.04

39.08

38.99

38.93

38.90

38.86

38.98

38.94

38.91

38.89

38.91

38.92

38.98

39.88

39.86

39.07

38.94

38.90

38.83

38.70

38.76

38.88

38.90

38.92

38.84

38.75

Nov.

38.80

38 78

38.78

38.87

38.91

38.97

38.92

38.90

38.90

38.86

38.84

38.77

38.33

38.74

38.76

38.91

39.01

39.05

39.03

39.04

39.03

39.03

38.98

38.94

38.96

38.95

38.94

38.79

38.59

38.94

Dec.

38.88

38.50

39.22

39.05

39.80

39.81

39.31

39.31

39.36

39.49

39.38

39.40

39.80

39.80

39.13

39.41

39.43

39.61

39.61

39.95

39.89

39.88

40.16

40.14

40.23

40.30

40.33

40.35

40.40

40.43

40.48

Jan.

40.47

40.47

40.48

40.49

40.50

40.51

40.58

40.60

40.63

40.66

40.69

40.71

4O.78

40.75

40.77

40.80

40.82

40.83

40.85

40.87

40.88

40.89

40.91

40.93

40.97

41.00

41.08

41.14

41.80

41.25

41.89

Feb.

41.37

41.44

41.49

41.61

41.71

41.80

41.88

41.95

41.98

42.00

42.05

48.06

48.07

48.06

42.07

42.09

42.06'

42.11

48.11

42.11

48.14

42.12

42.09

48.14

42.18

42.15

48.16

42.16

_

-

Mar.

48.17

48.17

48.19

48.17

42.82

48.20

42.19

48.15

42.15

48.19

42.24

48.86

48.80

48.19

48.35

48.38

42.36

42.45

48.37

42.35

42.31

42.50

42.53

48.58

48.56

42.47

48.46

42.51

42.58

42.57

48.36

Apr.

48.60

48.65

42.51

42.57

42.74

42.84

42.83

42.75

42.56

42.89

42.97

42.85

42. 2E

48.74

42. 7£

42.50

42.81

42.94

48.94

42. 9£

43. OJ

43.22

43.01

43.05

43. 0£

48.91

48. 9C

43.0J

42.81

48.6!

-

May

43.04

48.95

43.05

43.06

43.04

43.09

43.07

43.06

43.15

42.98

43.12

43.05

43.06

42.94

43.08

43.01

42.97

48.94

48.91

42.93

48.90

43.03

42.95

42.77

48.98

43.02

42.87

42.95

42.96

42.97

42.99

June

43.03

43.03

43.00

48.99

48.96

43.10

43.05

48.95

43.05

43.03

42.98

42.95

48.95

48.89

48.98

42.31

48.87

42.91

48.88

48.80

42.75

48.80

48.69

42.68

42.67

42.67

48.53

48.48

42.46

48.45

-

July

48.42

48.38

48:33

42.35

48.26

48.24

42.36

42. S4

42.83

48.21

48.13

48.02

41.90

41.89

41.90

41.87

41.86

41.86

41.81

41.79

41.69

41.67

41.63

41.59

41.56

41.52

41.47

41.41

41.3E

41.26

41.24

Aug.

41.17

41.15

41.10

41.10

41.04

40.92

40.88

40.89

40.86

40.78

40.80

40. ^7

40.74

40.63

40.57

40.48

40.47

40.38

40.32

40.30

40.87

40.26

40.21

40.18

40.09

40.08

39.98

39.87

39.85

39.75

39.82

Sept.

39.70

39.60

39.59

39.55

39.50

39.46

39.39

39.40

39.41

39.38

39.36

39.28

39.24

39. SO

39.23

39.84

39.85

39.03

39.04

39.00

38.98

38.95

38.93

38.90

38.87

38.87

38.78

38.74

38.69

38.70

-

Hote.- Add 4,100 feet to obtain elevations above mean level, U.S. Bureau of Reclamation datum.

Monthly elevation and contents, water year October 1941 to September 1942

Date

Dee. 31. ....................

Calendar year 1941. ........

Sept. 30. ....................

Water vear 1941-42. ........

Elevation 

(feet)

4,139.27 

,138.81 

,138.8: 

,140.46

-

,141.34 

,142.17 

,142.54 

,142.93 

,1 43.OO 

,142.42 

,141.82 

,139.72 

,138.70

Contents 

(acre-feet)

266,000 

227,900 

227,900 

338,900

-

411,200 

482 , 900 

515,400 

560,200 

556,600 

504,800 

401,100 

284,600 

221,200

Change in contents 

during month 

(acre-feet)

-28,100 

0 

+111,000

+98,700

+72,300 

+71,700 

+32,500 

+34,800 

+6,400 

-51,800 

-103,700 

-116,500 

-63,400

-34.800

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. 

Time basis: Pacific standard tloe prior to 2 a.m., Feb. 9, 1942; Pacific war ti 

thereafter. To convert war time to standard time, subtract 1 hour.

530350 O- 43 - 24
362 KLAMA.TH RIVER BASIN

Link River at Klamath Falls, Oreg.

Location.- Water-stage recorder, lat. 42°13', long. 121°48', in sec. 32, T. 38 S., R. 9

 £., 200 yards upstream from outlet of Keno Canal and three-eighths of a mile upstream 

from Main Street Bridge at Klamath Falls. Datum of gage is 4,083.71 feet above mean 

sea level, datum of 1929, or 4,085.50 feet above datum of Bureau of Reclamation.

Drainage area.- 3,812 square miles (including Crater Lake Basin).

Records available.- May 1904 to September 1942.

Average discharge.- 38 years, 1,557 second-feet (including Keno Canal).

Extremes.- Maximum combined discharge of Link River and Keno Canal during yeqf, 3,450

 second-feet Apr. 17; minimum, 20 second-feet Nov. 16; minimum daily, 31 second-feet 

Feb. 1. 1904-42: Maximum discharge, 9,400 second-feet May 12, 1904 (gage height at bridge, 

7.30 feet); minimum, 16 second-feet Dec. 13, 1937; minimum daily, 17 second-feet Dec. 13, 

1937.

Remarks^,- Records good except those for period June to September, which are fair. Regula-

 tTofTsince April 1919 by Upper Klamath Lake. Water diverted above station by the main 

or "A" canal and Keno Canal. 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 

Co.

Discharge, In second-feet, of Link River, including Keno Canal, at Klajnath Palls, Oreg. 

year October 1941 to September 1942

Day

1 

2 

3 

4

5

6

7 

8 

9 

10

11 

12 

13 

14 

16

16 

17 

18 

19 

20

21 

22 

23 

24 

25

26 

27 

28 

29 

30 

31

Oct.

1,610 

1,610 

1,510 

1,380 

1,420

1,540 

1,670 

1,670 

1,610 

1,470

1,360 

1,360 

1,420 

1,520 

1,480

1,360 

1,360 

1,360 

748 

1,120

1,700 

1,300 

1,800 

1,700 

1,460

1,390 

1,400 

1,410 

1,430 

1,420 

1,400

Nov.

1,400 

1,410 

1,410 

1,440 

1,360

1,420 

1,650 

1,630 

1,700 

1,780

1,780 

1,590 

1,320 

1,280 

362

300 

738 

897 

1,000 

1,340

1,490 

1,690 

1,690 

1,680 

1,620

1,530 

1,530 

1,520 

1,380 

676

Dec.

1,280 

1,110 

339 

665 

653

647 

602 

V66 

1,050 

1,060

1,O80

957 

1,010 

997 

631

258 

535 

452

159 

352

369 

568 

336

160 

564

203 

559 

525 

586 

527 

615

Month

Oc 

No 

De

Ja 

Fe 

Ha 

Ap 

Ma 

Jui 

Ju 

Au, 

Se

comber. .............

Salendar year 1941..

ly..................

-Jater year 1941-42..

Jan.

929 

930 

982 

1,020 

1,140

1,280 

747 

794 

521 

206

303 

562 

568 

297 

543

543 

628 

500 

680 

604

610 

693 

698 

587

206

591 

132 

53

73 

75 

80

Feb.

31 

66 

66 

52

78

78 

37 

39 

535

1,360

1,360 

1,340 

1,350 

1,350 

1,350

1,350 

1,350 

1,350 

1,350 

1,350

1,350 

1,350 

1,350 

1,350 

1,350

1,340 

1,350 

1,350

Mar.

1,350 

1,370 

1,300 

1,380 

1,360

1,370 

1,380 

1,380 

1,380 

1,370

1,580 

1,380 

1,370 

1,380 

1,370

1,380 

1,380 

1,390 

829 

S95

906 

453 

981 

849

S55

573 

406 

110 

436 

1,320 

956

Apr.

956 

996 

476 

277 

704

977 

980 

827 

523

772

294 

876 

1,460 

2,640 

3,060

3,010 

3,090 

3,050 

2,920 

2,850

2,540 

2,540 

2,500 

2,290

1,730

901 

905 

954 

968 

864

May

393 

893 

902 

962

1,100

1,520 

1,530 

1,530 

1,530 

1,520

2,070 

3,060 

3,070 

3,060

3,070

3,060 

3,060 

2,670 

1,810 

1,220

964 

905 

873 

1,050 

2,320

3,110 

3,090 

2,690 

1,980 

2,000 

2,040

River including Keno Canal

Maximum

1,800 

1,780 

1,280

2,140

1,280 

1,360 

1,390 

3,090

3,110 

1,810 

1,670 

1,910 

1,780

3,110

Hinimum Hean

748 1,467 

300 1,354 

159 633

24 982

53 567 

31 951 

110 1,104 

277 1,564 

393 ,905 

871 ,303 

307 , 288 

1,020 ,626 

1,320 ,549

31 1,277

Runoff 

in 

acre-feet

90,220 

80,550 

38,920

711 , 000

34,860 

52,820 

67,910 

93,060 

117,100 

77,540 

79,170 

100,000 

92,170

924,300

June

1,810 

1,280 

1,450 

1,380 

1,480

1,500 

1,490 

1,480 

1,460 

1,450

1,440 

1,240 

871 

875 

984

1,070 

1,140 

1,400 

1,370 

973

1,000 

1,380 

1,380 

1,380 

1,380

1,380 

1,290 

1,020 

1,380 

1,360

July

1,040 

1,040 

966 

307 

902

1,060 

1,050 

1,340 

1,340 

1,330

1,100 

1,380 

1,380 

1,390 

1,400

1,360 

1,400 

1,220 

1,010 

1,400

1,260 

1,460 

1,670 

1,660 

1,440

1,160 

1,500 

1,620 

1,640 

1,640 

1,450

"A" canal

Runoff 

in 

mere-feet

0 

0 

0

183,000

0 

0 

0 

14,560 

20,850 

43,320 

53,190 

44,530 

22,700

199,200

Aug.

1,340 

1,020 

1,230 

1,490 

1,580

1,580 

1,570 

1,540 

1,550 

1,650

1,710 

1,690 

1,750 

1,910 

1,720

1,590 

1,910 

1,750 

1,660 

1,580

1,530 

1,530

1,740 

1,850 

1,850

1,850 

1,850 

1,720 

1,450 

1,500 

1,680

Sept.

1,650 

1,520 

1,600 

1,680 

1,680

1,560 

1,450 

1,540 

1,640 

1,540

1,430 

1,320 

1,420 

1,480

1,470

1,480 

1,470 

1,430 

1,430 

1,440

1,470 

1,520 

1,570 

1,610 

1,570

1,630 

1,680 

1,700 

1,710 

1,730

River including 

Keno and "A" Canals

Runoff 

in 

acre-feet

90,220 

80,550 

38,920

894 , 000

34,860 

52,820 

67,910 

107,600 

138,000 

120,900 

132,400 

144,500 

114,900

1,124,000

Hean

1,467 

1,354 

633

1,235

567 

951 

1,104 

1,809 

2,244 

2,031 

2,153 

2,350 

1,931

1,552

Time basis; Pacific standard time prior to 2 a.m. 

To convert war time to standard time, subtract 1 hou

Feb. 9, 1942; Pacific war time thereafter
KLAMATH RIVER BASIN -500 

Klamath River at Keno, Oreg.

Location.- Water-stage recorder, lat. 42°08', long. 121°58', in SEi sec. 35, T. 39 S., R. 

7 E., 2 miles west of Keno and 5 miles upstream from Spencer Creek.

Drainage area.- 3,920 square miles (not including Lost River or Lower Klamath Lake Basins). 

Records available.- June 1904 to December 1913, January 1930 to September 1942. 

Average discharge.- 21 years, 1,527 second-feet.

Extremes.- Maximum discharge during year, 3,670 second-feet May 25 (gage height, 7.81 

feetj; minimum, 76 second-feet Mar. 28 (gage height, 1.82 feet); minimum daily, 268 

second-feet Nov. 16.

1904-13. 1930-42: Maximum discharge, 6,830 second-feet May 1-6, 1938 (gage height, 

10.10 feet); minimum, 35 second-feet Aug. 4, 1934; minimum dally, 60 second-feet May 19, 

1934.

Remarks.- Records excellent. Diversions above station for Irrigation. Lost River dlverslon 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.) The following diversions, in acre-feet, through Klamath Strait Into Lower 

Klamath Lake In the year ending Sept. 30, 1942, were computed by U. 3. Bureau of 

Reclamation from gate openings at Ady: October, 363; November, 0; December, 0; January, 

1,230; February, b,760; March, 6,430; April, 1,850; May, 1,240; June, 849; July, 843; 

August, 242; September, 397; the year, 20,200. Flow regulated by Upper Klamath Lake 

since 1919 and Lake Ewauna and Klamath River above Keno since September 1931.

Cooperation.- Water-stage reporder inspected by employee of The California Oregon Power Co.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

1,730

1,750

1,700

1,560

1,550

1,680

1,830

1,830

1,780

1,660

1,520

1,510

1,580

1,680

1,640

1,500

1,510

1,500

909

1,080

1,890

1,970

1,970

1,920

1,680

1,510

1,550

1,550

1,550

1,550

1,550

Nov.

,570

,600

,610

,690

,550

,570

,810

,860

,820

,900

,930

,780

,570

,380

549

268

625

,140

,260

,550

,690

,880

,870

,S70

,830

,740

,690

,690

,520

838

-

Dec.

1,330

1,560

473

854

931

850

663

999

1,300

1,310

,260

,180

,180

,270

,140

437

577

672

524

693

950

1,200

1,060

682

975

750

856

728

821

711

745

Jan.

1,070

f 1,260

f 1,170

,210

,470

,630

,360

,120

920

570

561

1,140

983

728

879

936

931

985

1,030

1,010

973

1,040

1,120

972

536

1,040

928

1,020

1,340

1,330

1,330

Feb.

1,280

1,080

940

825

654

636

722

800

,300

,290

,250

,070

,010

,230

,190

,020

,970

,990

,860

,650

,680

,780

,700

,640

,680

,680

,650

,620

_

-

Mar.

1,660

1,690

1,600

1,480

1,340

l',260

1,400

1,500

1,580

1,550

1,580

1,600

1,580

1,600

1,570

1,550

1,530

1,480

1,030

828

1,000

731

1,120

1,180

1,070

899

1,280

1,010

420

579

830

Apr.

1,040

1,130

808

855

617

1,110

1,150

1,070

634

785

o25

731

1,620

2,660

3,120

3,020

2,960

3,000

2,790

2,640

2,520

2,460

2,430

2,110

1,430

794

790

846

875

846

-

May

414

755

910

999

1,170

1,500

1,560

1,590

1,580

1,620

2,100

3,430

3,410

3,350

3,310

3,320

3,310

2,930

1,910

1,200

972

939

867

1,040

2,250

3,500

3,230

2,900

2,210

2,250

2,250

June

2,090

1,610

,580

,670

,570

,410

,260

,230

,300

,300

,300

,040

541

465

587

707

923

1,120

935

686

883

1,230

1,270

1,220

1,190

1,180

928

724

1,130

972

-

July

918

860

860

290

476

633

911

1,190

1,180

1,050

995

1,180

1,190

1,220

1,210

1,200

1,210

1,070

836

1,160

1,150

1,260

1,550

1,570

1,350

1,030

1,400

1,590

1,620

1,610

1,400

Aug.

1,270

886

1,190

1,430

1,540

1,540

1,540

1,530

1,530

1,600

1,660

1,670

1,710

1,880

1,700

1,550

2,000

1,890

1,660

1,600

1,480

1,490

1,730

1,970

1,950

1,930

1,890

1,730

1,390

1,420

1,680

Sept.

1,780

1,750

1,640

1,940

1,930

1,830

1,700

1,690

1,860

1,800

1,650

1,460

1,660

1,800

1,770

1,730

1,710

1,720

1,700

1,690

1,710

1,790

1,850

1,880

1,840

1,780

1,860

1,920

1,910

1,890

-

Month

January .............................. . . .

April .......... ......................... .

May................................ .....

July. ......................................

Water year 1941-42 ......................

Seccndfoot days

50,189

45,650

28,681

401,141

32,592

44,197

39,527

47,165

62,826

34,056

35,169

50,036

53,440

523,528

Maximum

1,970

1,930

1,560

2,070

1,63O

2,290

1,690

3,120

3,500

2,090

1,620

2,000

1,940

3,500

Minimum

909

268

437

142

536

636

420

325

414

465

290

886

1,460

268

Mean

,619

,522

925

,099

,051

,578

,275

,572

,027

,135

,134

,614

,781

1,434

Runoff in 

acre-feet

99,550

90,550

56,890

795,700

64,650

87 , 660

78,400

93,550

124,600

67,550

69,760

99,240

106,000

1,038,000

f Computed on basis of partly estimated gage-height record. 

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
364 KLAMATH RIVER BASIN 

Klamath River below Fall Creek, near Copco, Calif.

Location.- Water-stage recorder, lat. 41°58', long. 122°22', in HEi sec. 36, T. 48 N., 

R. 5 W., 500 feet downstream from Fall Creek, half a mile downstream from Copco Ho. 

2 plant of The California Oregon Power Co., and 1 mile south of Copco post office. 

Altitude of gage, 2,310 feet (from river-profile map).

Drainage area.- 4,370 square miles.

Records available.- October 1928 to September 1942. October 1923 to September 1928 a 

site above Fall Creek.

Average discharge.- 19 years, 1,416 second-feet (including Fall Creek).

Extremes.- Maximum discharge during year, 5,050 second-feet (regulated) Nay 12 (gage 

height, 5.50 feet); minimum, 194 second-feet (regulated) July 26 (gage height, 1.47 

feet); minimum daily, 291 second-feet Apr. 12.

1923-42: Maximum discharge, 9,660 second-feet Apr. 27, May 3, 1938 (gage height, 

7.39 feet); minimum, about 10 second-feet above Fall Creek several times in 1925 and 

1926; minimum daily, 83 second-feet 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 

CoT

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

,070

,930

,990

,930

,140

,870

,890

,890

,940

,910

,750

,130

,980

,960

,970

,930

,020

,190

963

2,120

2,280

2,060

2,170

2,340

1,630

981

1,860

1,980

1,990

2,070

2,280

Nov.

1,440

962

2,080

1,800

2,080

2,360

2,550

2,260

824

2,080

1,910

2,140

1,610

1,720

1,030

462

1,570

1,650

1,850

751

2,040

2,420

901

2,010

1,950

1,980

1,950

1,960

1,580

1,040

-

Dec.

1,890

1,640

1,500

1,490

1,56O

1,030

698

1,620

1,680

1,660

1,680

1,520

1,280

620

1,150

1,310

1,550

1,660

1,790

,1,720

852

1,550

1,480

1,520

512

1,320

1,270

1,040

1,390

1,340

1,390

Jan.

956

1,580

1,680

Feb.

1,690

1,590

1,570

932 1,580

1,740

1,590

1,210

1,130

1,380

708

629

1,470

1,550

1,480

1,540

1,520

1,330

431

1,350

1,350

1,360

1,400-

1,400

891

510

1,550

1,590

1,910

1,890

1,810

1,780

1,690

1,560

1,240

732

1,860

2,690

2,550

2,430

2,270

2,380

2,440

2,480

2,250

2,120

2,300

2,150

1,760

2,040

1,760

2,200

2,040

1,770

2,040

1,620

-

~

-

Month

October. ...................................

November. ..................................

December. ..................................

Calendar year 1941 ......................

January. ...................................

February. ....................... .... .....

March. ............................... . ...

April ............................ ....... .

May. .......................................

June ............. ....... ................

July. ..................... ................

August ................... .................

September ..................................

Water year 1941-42 ......................

Mar. Apr.

2,110

2,020

1,970

1,960

1,780

1,690

1,300

1,270

1,410

1,160

378

1,260

el, 290] 1,340

el, 780 ' 1,350

el, 970

el,880

1,850

1,770

1,900

1,850

1,980

1,850

1,810

1,920

1,790

1,230

646

460

1,380

1,450

1,400

1,470

1,530

1,080

580

1,330

1,280

1,380

1,360

1,200

291

1,720

2,380

3,280

3,560

3,110

63,120

 e3,460

e3,200

e2,670

62,270

e3,030

e2,580

el,960

6793

el, 650

el, 540

el,320

1,340

-

Second 

foot-days

57 154

50)950

42,712

507,563

41,647

55,002

48,906

56,682

69,803

43,608

42,205

56,322

60,217

625,218

May

1,020

1,150

458

1,480

1,830

1,810

1,520

1,480

1,460

1,820

2,390

3,700

3,440

3,350

3,330

3,290

3,310

3,340

2,320

1,810

1,800

1,820

1,080

525

2,140

3,900

3,540

3,260

2,260

2,510

2,660

Maximum

2,340

2,550

1,890

2,550

1,910

2,890

2,110

3,560

3,900

2,530

1,830

2,220

2,580

3,900

June

2,530

2,OPO

1,820

2,070

2,230

1,790

1,380

1,890

1,670

1,560

1,360

1,620

1,030

321

1,500

1,670

1,450

1,380

1,350

1,180

386

1,400

1,440

1,460

1,530

1,340

1,240

321

1,470

1,140

-

Minimum

963

46£

512

275

431

732

460

291

458

321

426

562

897

291

July

1,340

1,150

1,080

468

670

1,320

1,330

1,310

1,340

1,410

1,230

739

1,390

1,440

1,570

1,490

1,460

1,510

582

1,720

1,780

1,700

1,780

1,830

1,530

426

1,700

1,820

1,700

1,690

1,700

Aug.

1,780

618

1,860

1,790

1,830

1,940

1,950

1,990

562

1,980

2,000

2,030

2,130

2,140

1,930

988

1,960

1,840

2,050

2,170

2,130

2,220

1,200

2,040

2,090

2,110

2,080

2,030

1,970

984

1,930

Mean

1,844

1 , 699

'

1,391

1,343

1,964

1,578

1,889

2,252

1,454

1,361

1,817

2,007

1,713

Sept.

2,080

2.460

2,560

2,580

2,210

1,030

1,080

2,050

1,930

2,010

2,070

2,200

897

2,150

2,150

2,130

2,110

2,110

2,140

1,240

2,110

2,180

2,170

2,150

2,300

2,130

1,120

2,280

2,200

2,390

-

Runoff in 

acre-fent

113,400

101,100

84,720

1,007,000

82,610

109,100

97,000

112,400

138, 500

86,500

83,710

111,700

119,400

1,240,000

e Incomplete gage-height record; discharge computed on basia of power-plant records. 

Time baaia; Pacific standard time prior to 2 a.m., Fet. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
KLAMATH RIVER BASIN 365

Klamath River at Somesbar, Calif.

Location.- Water-stage recorder, lat. 41°23', long. 123°29', In NEi sec. 4, T. UN., R.

6 E., 300 feet downstream from Salmon River and 1 mile west of Somesbar post office.

Altitude of gage, about 450 feet (from topographic map). 

Drainage area.- 8,480 square miles. 

Records available.- October 1927 to September 1942. 

Average discharge?- 14 years (1927-29, 1930-42), 6,396 second-feet. 

Extremes.- Maximum discharge during year, 58,000 second-feet Dec. 2 (gage height, 27.00

feet}; minimum, 1,590 second-feet (regulated) Oct. 20.

1927-42: Maximum discharge, 73,700 second-feet Dec. 11, 1937 (gage height, 32.3

feet), from rating curve extended above 49,000 second-feet by velocity-area studies;

minimum, 218 second-feet (regulated) Aug. 26, 1931.

Flood of Feb. 21, 1927, reached a stage of 50.8 feet (discharge not computed). 

Remarks.- Records good except those for periods of no gage-height record, which are fair.

Storage, large diversions for irrigation, and considerable regulation by power plants

above station.

Rating tables, water year 1941-42 (gage height, in feet, and discharge. In second-feet) 

Got. 1 to Dec. 2 Dec. 3 to Sept. 30

5.9 

6.2 

6.5 

7.0 

7.5

1,970

2,340

2,740

3,500

4,390

8.0 

S.5 

9.0

10

11

5,400.

6,500

7,650

10,100

12,800

16

18

20.5

15,600

21,200

26,800

32,400

39,400

6.1 

6.3 

6.6

7.0 

7.5

1,870 

2,120 

2,550 

3,180 

4,050 

Note.- Same as

8.0 

8.5 

9.0

10

11

5,040

6,160

7,360

10,000

12,800

table above -11 feet.

preceding

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

2,810

2,840

2,870

2,850

2,820

2,220

2,680

2,850

2,810

2,800

2,800

2,700

2,290

2,810

2,840

2,870

2,820

2,870

2,280

1,970

2,850

3,120

3,000

2,970

5,160

2,700

2,260

2,880

3,020

3,060

2,970

Nov.

3,290

2,870

2,400

3,470

3,100

3,240

3,440

3,580

3,480

2,040

2,810

2,980

3,240

6,130

7,580

7,080

4,560

a4, 200

a3,700

a3,500

a2,700

a3,500

a3,500

2,740

3,280

3,440

3,450

3,440

3,810

5,300

-

Dec.

3,950

35,400

37,200

19,000

12,500

10,200

8,040

6,500

6,620

6,160

5,720

5,300

5,350

7,020

12,400

25,500

23, 500

36,000

39,400

33,100

23,900

17,400

16,800

a!5,000

13,300

11,300

10,900

10,100

9,270

9,030

8,540

Jan.

3,070

7,120

7,340

7,260

6,420

7,260

18,700

23,600

17,300

14,800

13,000

11,900

11,700

10,900

10,400

10,100

9,550

9,000

7,760

8,040

7,910

7,940

8,410

9,500

11,100

14,300

19 , 400

18,500

15,300

13,600

12,900

Feb.

14,100

19,100

20, 400

28,400

28,300

37,200

31,600

25,900

20,700

18,800

17,400

15,600

14,600

13,600

13,000

12,500

12,100

11,500

10,800

10,700

10,300

9,640

9,520

9,270

9,240

8,930

8,410

8,430

-

-

-

Mar.

7,890

8,380

8,150

,910

,890

,910

,780

,480

8,070

9,030

9,000

8,950

8,900

8,560

8,250

8,120

7,960

7,780

7,760

7,500

6,950

6,500

5,880

6,760

6,710

6,620

6,520

6,570

6,140

5,630

6,590

Apr.

7,000

6,810

7,220

7,780

7,550

6,880

7,500

7,830

8,090

8,250

8,560

8,800

8,510

9,720

10,600

11,300

11,000

10,300

10, 200

10,600

10,800

10,500

9,750

10,000

9,410

8,560

7,460

7,990

7,500

7,700

-

May

7,700

7,070

7,220

6,690

7,410

8,020

8,510

8,770

8,950

8,430

8,800

9,080

10,200

10,200

11,000

11,000

10,800

11,000

11,000

11,400

13,000

13,900

13,300

12,700

23,100

22,300

19,800

18,300

17,100

15,000

14,100

June

13,800

13,700

12,900

12,600

12,900

12,900

11,600

10,800

11,000

10,500

9,720

9,160

9,080

8,740

8,120

8,380

8,170

7,650

7,220

6,830

6,470

5,720

6,110

6,260

6,450

6,540

5,990

5,630

4,960

5,260

July

5,460

5,370

5,060

4,760

4,200

3,800

4,240

4,240

4,130

4,090

3,940

3,730

3,350

3,590

3,690

3,910

3,710

3,660

3,520

2,970

3,120

3,690

3,470

3,550

3,450

3,300

2,490

2,550

3,300

3,180

3,120

Aug.

3,050

3,020

2,440

2,610

3,100

3,040

3,120

3,210

3,180

2,360

2,460

3,120

3,150

3,210

3,180

3,020

2,340

2,640

2,970

3,050

3,210

3,120

3,180

2,430

2,660

2,970

2,970

3,070

3,080

2,970

2,150

Sept.

2,480

2,970

3,250

3,470

3,490

3,230

2,300

1,940

2,700

3,020

2,970

3,070

3,250

2,300

2,520

3,120

2,970

2,920

2,910

3,040

2,230

2,670

2,970

2,960

2,960

3,080

3,020

2,110

2,750

2,990

Month

May. .......................................

Water year 1941-42 ......................

Secondfoot-days

2,896,710

365,850

90,080

85,660

2,912,870

Maximum

39 ' 400

39,400

11,300

23,100

13,800

3,210

3,490

39,400

Minimum

8,410

2,150

1,940

1,940

Mean

11,800

8,839

2,855

7,980

Runoff in 

acre-feet

169,900

5,778,000

Peak discharge.- Dec. 2 (7:30 a.m.) 58,000 sec.-ft.; Dec. 16 (9:30 a.m.) 31,400 sec.-ft.; Dec. 18 

(5:30 p.m.) 43,000 sec.-ft.; Jan. 7 (8 p.m.) 27,600 sec.-ft.; Feb. 4 (2:30 p.m.) 31,300 sec.-ft.j 

Feb. 6 (7:30 a.m.) 39,300 sec.-ft.

a No gage-height record; discharge computed on basis of estimated gage heights 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war 

To convert war time to standard time, subtract 1 hour.

_ or interpolated, 

time thereafter.
366 KLAMATH RIVER BASIN 

Smaller reservoirs in Klamath River Basin, Oreg.

Fourmlle Lake Reservoir.- Staff gage, lat. 42°27', long. 122°14',in NWi sec. 9, T. 36 S.,

 R. 5 E., at dam at outlet of Fourmlle Lake, 8 miles west of Recreation. Gage readings are elevations above mean sea level, irrigation company datum. Records available, June 1923 to September 1930, June 1932 to September 1942. Maximum contents 

observed during year, 9,625 acre-feet July 1 (elevation, 5,995.5 feet); minimum 

observed, 1,722 acre-feet Oct. 25 (elevation, 5,983.16 feet). Maximum contents observed during periods 1923-30, 1932-42, 16,220 acre-feet May 18, 1938 (elevation, 

6,003.1 feet); 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, 18,100 acre-feet between elevations 

5,980 feet (sill of outlet gate) and 6,005 feet (crest of spillway). Figures given 

herein represent usable contents. Water is used for irrigation of lands near Medford. 

Gage read once daily, July 1 to Aug. 12, occasionally at other times.

Hyatt Prairie Reservoir.- Staff gage, lat. 42°10', long. 122°28', in sec. 16, T. 39 S., 

R. 3 E., at dam of Talent Irrigation District on Keene Creek, 3 miles north of AshlandKlamath Falls highway and 20 miles east of Ashland. Gage readings are elevations above 

mean sea level, datum of Talent Irrigation District. Records available, December 1922 

to September 1942. Maximum contents observed during year, 13,530 acre-feet June 17-19 

(elevation, 5,012.90 feet); minimum observed, 4,200 acre-feet Oct. 2, 18 (elevation, 

4,999.0 feet). Maximum contents observed during period 1922-42, 17,410 acre-feet 

May 29, 1938 (elevation, 5,017.37 feet); no usable contents at times.

Reservoir is formed by rock-faced earth dam, completed by Talent Irrigation District in 1923; storage began in December 1922. Capacity, 16,180 acre-feet between 

elevations 4,981.7 feet (sill of gate, approximate) and 5,016.0 feet (spillway crest). 

Dead storage negligible. Water used for irrigation near Ashland and Talent. Gage 

read once to three times weekly from January to September, occasionally at other 

times.

OGher reservoirs.- There are six other small reservoirs in Williamson River Basin and

 eight in Lost River Basin, having a total capacity of 12,300 acre-feet.

Elevation and contents, water year October 1941 to September 1942

Da-te

Dec. 31.. ............

Calendar year 1941.

Sept. 30..............

Water year 1941-42.

Fourmile Lake Reservoir

Elevation 

(feet)t

6,983.2 

6,985.20

-

5,989.6 

5,986.45

-

Contents 

(acre-feet)

1,744 

1,774 

2,069 

2,893

-.

3,316 

3,430 

3,720 

5,567 

7,394 

9,550 

5,611 

3,635 

3,440

-

Change in 

contents 

during month 

(acre-feet)

+30 

+295 

+824

+556

+423 

+114 

+290 

+ 1,847 

+1,827 

+2,156 

-4,039 

-1,876 

-196

+1,696

Hyatt Prairie Reservoir

Elevation 

(feet)t

:

-

5,002.60 

6,003.7 

6,004.76 

5,008.8

6,001.3

-

Contents 

(acre-feet)

4,200 

4,289 

4,545

6,644

-

6,147 

6,889 

7,566 

10, 380 

12,920 

13,260 

11,330 

7,101 

5,438

-

Change In 

contents 

during month 

(acre-feet)

+89 

+256 

+1,099

+3,625

+503 

+742 

+677 

+2,814 

+2, 540 

+340 

-1,930 

-4,229 

-1,585

+1,316

t Hour of reading not known.

Note.- Contents Interpolated for days on which gage was not read.

Time basis: Pacific standard time prior to 2 a.m., Feb.. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
KLAMATH RIVER BASIN 367

Sprague River near Chiloquin, Oreg.

Location.- Water-stage recorder, lat. 42°35', long. 121°51', in NEi sec. 35, T. 34 S., R. 

7 E., 1-i miles east of Chlloquin and 4 miles upstream from Modoc Point Canal Intake.

Drainage area.- 1,580 square miles.

Records available.- August 1931 to September 1942. July 1920 to September 1931 at site 

at McCready Ranch, 12 miles upstream; records equivalent except for extremely low 

stages.

Average discharge.- 21 years (1921-42), 434 second-feet.

Extremes.- Maximum discharge during year, 2,020 second-feet Feb. 1; maximum gage height, 

4.56 feet Jan. 14 (affected by ice); minimum discharge, 146 second-feet Aug. 23-24 

(gage height, 1.34 feet).

1920-42: Maximum discharge, 6,380 second-feet Apr. 22, 1938 (gage height, 7.34 

feet); minimum daily, 50 second-feet (estimated)May 26, 27, 1926.

Remarks.- Records good. Diversions above station for irrigation; regulation by ponding 

at irrigation dams.

Cooperation.- Water-stage recorder inspected by employee of The California Oregon Power Co.

Rating /tables, water year 1941-42, except period of ice effect (gage height, 

in feet, and discharge, in second-feet)

Oct. 1 to Jan 23 to Sept. 30

1.4

1.7 

2.0

159

285

450

2.4 

2.8 

3.2

695

980

1,300

1.3 

1.6 

2.0

133

248

443

2.4 

2.9 

3.5

665

1,010

1,500

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

212

212

212

216

216

216

220

220

191

203

203

203

208

212

220

251

386

275

237

224

251

242

247

251

251

256

275

271

266

285

295

Nov.

290

290

290

301

301

301

301

301

306

301

290

290

285

295

280

290

306

327

348

364

359

348

332

316

311

301

295

301

295

295

-

Dec.

295

306

332

348

359

415

474

564

582

558

504

456

404

392

392

433

462

546

630

721

760

816

965

1,170

1,070

980

900

700

630

700

540

Jan.

350

430

460

440

420

415

415

430

420

420

430

430

430

420

390

450

410

390

370

375

330

340

362

362

377

402

523

717

884

1,270

1,530

Feb.

1,820

1,870

1,540

1,390

1,240

1,230

1,230

1,180

1,120

1,110

1,100

1,040

954

870

807

730

653

583

550

528

501

480

470

459

448

438

433

438

.

-

-

Mar.

443

438

433

438

448

459

475

496

518

556

600

653

724

800

877

933

940

884

800

744

717

691

684

710

751

828

905

961

975

961

961

Apr.

1,000

1,070

1,170

1,280

1,350

1,380

1,390

1,400

1,400

1,380

1,340

1,320

1,320

1,380

1,460

1,570

1,710

1,840

1,960

1,940

1,320

1,700

1,560

1,460

1,430

1,430

1,460

1,470

1,450

1,390

-

Hay

1,360

1,350

1,320

1,290

1,240

1,210

1,160

1,130

1,080

1,030

996

975

975

989

1,030

1,060

1,070

1,070

1,070

1,030

1,000

982

954

893

884

891

912

961

1,030

1,110

1,200

June

1,310

1,450

1,540

1,530

1,440

1,330

1,230

1,150

1,090

1,030

968

926

877

821

772

704

665

647

629

491

454

459

448

438

423

407

392

382

382

418

-

July

433

402

377

357

342

332

323

308

294

257

253

257

262

280

192

192

217

226

230

230

266

308

230

257

253

248

244

239

235

230

230

Aug.

230

230

330

230

262

253

239

235

239

230

230

230

226

226

230

226

230

235

230

204

184

184

152

149

159

173

138

192

196

200

200

Sept.

200

204

204

208

208

222

230

226

217

208

208

213

213

217

230

226

276

294

257

226

217

222

226

253

239

235

285

230

230

230

-

Month

April. ................................ ....

May........ .... ........................

Water year 1941-42 ..... ................

Secondfoot-days

9,210

162,769

15,392

25,212

21,803

43,830

33,257

24,303

8,554

6,622

6,304

221,318

Maximum

364

1,170

1,170

1,530

1,870

975

1,960

1,360

1,540

433

262

294

1,960

Minimum

280

295

138

330

433

433

1,000

834

382

192

149

200

149

Mean

307

594

446

497

900

703

1,461

1,073

827

276

214

227

606

Runoff in 

acre-feet

14,730

18,270

36,500

322,900

30,530

43,250

86,940

65,960

49,200

16,970

13,130

13,500

439,000

Note.- Stage-discharge relation affected by ice Dec. 25 to Jan. 22. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific 

To convert war time to standard time, subtract 1 hour.

time thereafter.
368 KLAMA.TH RIVER BASIN

Cascade Caiial near Fish Lake, Oreg.

Location.- Water-stage recorder, lat. 42°24', long. 122°16', In SEi sec. 30, T. Z6 S., 

R. 5 E., at divide between Rogue River and Klamath River Basins, 3 miles upstream 

from Fish Lake and 10 miles downstream from point of diversion.

Records available.- June 1924 to September 1942 (irrigation seasons only).

Extremes.- Maximum discharge during year, 41 second-feet Aug. 11 (gage height, 1.89 

feet); practically no flow in periods October to March, Aug. 14 to Sept. 30.

1924-42: Maximum discharge recorded, 60 second-feet June 5, 1934; no flow at 

times.

Remarks.- Records good for periods July 1 to Aug. 4, Aug. 11-13, fair for periods Nay 27 

to June 16, Aug. 5-10, poor for periods May 1-26, June 17-30. Water stored in Fourmile Lake Reservoir was released to canal during period July 1 to Aug. 12. Canal 

diverts water from Four-mile Creek, In Klamath River Basin, and discharges Into lava 

bed li 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 second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Got. Nov. Dec. Jan. Feb. Mar. Apr. May

\

 aS.O

)

.9

.9

.7

.7

.7

June

7.3

6.9

6.9

6.7

6.2

5.8

5.6

5.1

5.1

4.6

3.5

2.8

2.6

2.6

2.8

2.5

a2.3

a2.2

a2.0

al.8

al.7

al,5

al.3

al.2

al.O

a. 8

a. 7

ais

a. 3

a. 2

-

July

3.3

40

39

39

39

39

39

39

39

40

40

40

40

a40

40

40

40

40

40

40

40

40

39

39

39

38

37

37

37

37

37

Aug.

37

37

37

37

a37

a36

a36

ab6

a35

a35

35

21

.2

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept

Month

May. ......................................

The period ..... ........................

Secondfoot-days

_

_

419.2

-

Maximum

_

_

7.3

40

57

-

Minimum

_

_

3.3

0

-

Mean

_

_

_

13.5

-

Runoff in 

acre feet

_

_

_

187

831

0

3,340

No gage-height reco'rd; discharge interpolated or computed on basis of ' 

ime basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacifl 

""""°"1- war time to standard time, subtract 1 hour

computed on basis of weather records " " "- - - - thereafter.
KLAMATH RIVER BASIN 369

"A" canal at Klamath Falls, Oreg.

Location.- Water-stage recorder, lat. 42°14', long. 121°48', in NEi sec. 30, T. 38 S., R. 

9 E., 300 feet downstream from head gates of canal and 1 mile northwest of Klamath 

Falls.

Records available.- October 1910 to September 1942. 

Average discharge.- 32 years, 181 second-feet.

Extremes.- Maximum dally discharge during year, 967 second-feet June 19 (gage height, 9.82 

feet): no flow Oct. 1 to Apr. 10.

1910-42: Maximum discharge, 1,100 second-feet July 20, 1937; maximum gage height, 

10.72 feet June 27, 1925.

Remarks.- Records good. Canal-diverts water from Upper Klamath Lake In NEi sec. 30, T. 

38 S., R. 9 E., for irrigation of lands east of Klamath River on both sides of Lost 

River. Most of return water reaches Lost River.

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, in second feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec. Jan. Feb.

Month

October. ........... .......................

November. ..................................

December ................................

Calendar year 1941 ......................

January. ...................................

February. ..................................

March ... ..................................

April. ........... .........................

May. ........... ........ ............ .....

June .................... ..................

July. ............... ......................

August .....................................

September ............................... . .

Water year 1941-42 ......................

Mar. Apr.

0

0

0

0

0

0

0

0

0

0

19

29

29

29

106

238

282

322

406

472

587

659

707

718

664

568

496

387

321

303

-

Secondfoot-days

0

0

0

92,265

0

0

0

7,342

10,514

21,838

26,816

22,452

11,445

100,407

May

252

256

289

299

293

320

391

441

462

429

398

363

340

311

264

242

217

231

311

399

453

480

466

462

431

392

369

293

246

214

195

Maximum

0

0

0

953

0

0

0

718

480

967

937

846

493

967

June

208

248

276

287

346

448

485

597

698

767

821

815

780

796

886

844

896

937

967

940

880

882

913

948

943

896

821

809

828

876

-

Minimum

0

0

0

0

0

0

0

0

195

208

821

479

275

0

July

898

937

920

829

835

859

878

871

872

853

821

822

854

874

874

840

830

835

828

S58

880

900

912

850

870

830

865

888

901

882

850

Aug.

725

725

792

826

846

832

793

812

809

814

842

793

796

806

767

739

732

734

760

729

718

693

645

636

657

659

646

610

540

497

479

Sept.

493

488

484

484

435

391

419

443

449

364

301

283

278

275

302

340

330

317

315

308

335

352

550

363

392

436

471

476

438

333

-

u Runoff in Uean acre-feet

0 0

0 0

0 0

253 183,000

0 0

0 0

0 0

245 14,560

339 20,850

728 43,320

865 53,190

724 44,530

382 22,700

275 199,200

Time basis: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
370 KLAMATH RIVER BASIN

Keno Canal at Klamath Falls, Oreg.

Location.- Watt-hour meter, lat. 42°13', long. 121°48', in SWi sec. 32, T. 38 S., R. 9 E., 

in west-cide plant of The California Oregon Power Co., a quarter of a mile upstream from 

Link River bridge at Klamath Falls, with staff gage In canal 200 feet above penstock. 

Records available.- October 1923 to September 1942. 

Average discharge.- 19 years, 203 second-feet.

Extremes.- Maximum dally discharge during year, 317 second-feet Jan. 1; no flow at times. 

I3S3-42: Maximum daily discharge, 339 second-feet Feb. 1, 1940.

Remarks.- Records fair. Discharge dstermined 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 SEi sec. 30. Water is used for developing power and returned to Link River in 

SWi sec. 32. Flow controlled by gates at head of canal. Watt-hour meter read dally 

at midnight; staff gage read once daily.

Cooperation.- Gage readings and record of electrical output furnished by The California 

Oregon Power Co.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

300

300

288

302

292

285

281

281

287

284

292

291

294

290

294

285

294

289

315

314

2S4

281

279

280

278

289

284

289

297

285

283

Nov.

284

287

292

285

304

297

299

283

292

292

290

286

269

295

172

19

20

180

286

283

269

266

273

268

272

273

274

263

261

284

-

Dec.

267

156

0

0

1

2

3

4

4

5

115

286

270

278

272

131

1

1

1

2

S

2

2

2

2

2

2

2

2

2

107

Jan.

317

284

286

286

282

276

113

171

271

104

3

3

3

4

4

0

Feb.

0

0

0

0

0

0

0

0

110

284

277

263

268

268

270

270

266

270

268

270

270

268

270

270

268

265

272

271

-

_

-

Mar

266

266

125

2

78

263

266

266

266

263

263

265

263

266

264

266

266

268

268

268

266

270

270

268

279

170

4

4

87

296

264

Apr.

261

248

254

254

255

260

264

258

257

265

263

259

241

246

267

244

258

256

257

254

256

257

254

252

254

254

253

258

255

248

-

May

256

257

257

258

258

258

257

257

257

257

260

252

258

253

256

254

254

257

259

254

262

257

261

259

265

256

257

257

263

265

265

June

267

2&1

258

180

265

265

266

265

265

266

263

263

263

263

263

262

262

262

267

261

259

261

260

258

257

259

268

267

267

263

-

July

265

265

26S

274

273

274

273

273

268

268

269

280

271

270

275

275

276

277

277

272

276

271

278

278

272

274

270

272

272

272

270

Aug.

264

268

265

266

267

267

267

264

266

270

274

270

273

268

268

268

267

267

266

268

262

262

260

261

260

260

258

255

267

263

266

Sept.

266

259

264

260

259

262

260

260

265

266

269

264

862

264

262

265

261

253

254

257

260

256

256

258

262

261

258

254

261

262

-

Honth

July. ......... ............... ............

September. .................................

Water year 1941-42 . . ...... ............

Second 

foot-days

8,987 

7,718 

1,926

74,719

2,453 

5,238 

6,896 

7,662 

7,996 

7,806 

8,449 

8,227 

7,820

81,178

Maximum

315 

304 

286

324

317 

284 

296 

267 

265 

268 

280 

274 

269

317

Minimum

278 

19 

0

0

0 

0 

2 

241 

252 

180 

265 

255 

253

0

Mean

290 

257 

62.1

205

79.1 

187 

222 

255 

258 

260 

273 

265 

261

222

Runoff in 

acre- feet

17,830 

15,310 

3,820

148,200

4,870 

10,390 

13,680 

15,200 

15,860 

15,480 

16,760 

16,320 

15,510

161,000

war time to standard time, subtract 1 hou
KLAMA.TH RIVER BASIN 371

Lost River diversion canal near Olene, Oreg.

Location.- Staff gages above and below head gates at intake of canal at Lost River Dam,

 lat. 42 009', long. 121°40', in SWi sec. 29, T. 39 S., R. 10 E., 4 miles southwest of

Olene. Water-stage recorder li miles downstream from intake not used during 1942.

Records available.- May 1912 to September 1942. 

Average discharge.- 26 years (1912-15, 1919-42), 118 second-feet.

Extremes.- Maximum daily discharge during year, 1,280 second-feet Jan. 30; no flow at 

1912-42: Maximum discharge, 1,320 second-feet Apr. 11, 1935; no flow at times.

Remarks.- Records fair. Discharge computed from daily record of openings and head on 

gates. Canal diverts water from Lost River in SWi sec. 29, T. 39 S., R. 10 E., and 

discharges into Klamath River to aid in reclamation of bed of Tule Lake. At times 

direction of flow is reversed and water Is 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 second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

167

161

150

153

175

174

170

163

141

130

125

124

126

124

124

122

122

121

121

121

124

120

119

119

119

121

119

118

120

119

118

Nov.

117

120

123

124

123

124

122

122

122

121

119

123

127

128

124

122

127

131

128

119

120

121

120

120

118

118

117

117

117

116

-

Dec.

117

113

127

130

200

140

144

221

213

190

126

132

171

155

160

127

138

142

185

300

453

483

467

414

355

301

192

189

198

193

180

Jan.

163

159

147

147

149

349

325

336

352

350

358

363

363

352

345

341

339

334

338

330

328

324

308

281

291

350

596

970

1,200

1,280

1,260

Feb.

1,160

S59

802

695

633

643

711

852

885

815

714

638

641

620

586

547

519

496

470

426

375

386

392

384

375

372

372

366

_

_

-

Month

October .............................. .....

November. ............................ .....

December ..................................

Calendar year 1941 ................. ...

January. ...................................

February. ....... ...... ......... .........

March. .....................................

April. .....................................

May. ............ ................... ......

June. ............ .........................

July. ......................................

August .....................................

September .... ......... ..... ..... .......

Water year 1941-42 ......................

Mar.

369

354

273

185

162

168

174

194

188

202

214

233

361

356

330

302

273

250

221

221

218

212

212

212

206

198

187

208

210

175

136

Apr.

146

156

163

157

172

174

113

91

87

83

75

72

24

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

-

Secondfoot-days

4,130

3,650

6,656

54,677

13,128

16,734

7,204

1,513

3,266

1 279

0

74

5,788

63,422

May

0

0

0

0

0

0

0

0

0

68

109

142

196

221

217

205

202

202

190

117

71

18

28

35

45

89

139

187

240

265

280

Maximum

175

131

483

869

1,280

1,160

369

174

280

278

0

74

223

1.280

Time basis: Pacific standard time crior to 2 a.m., Feb. 9, 1942,

June

278

272

261

197

147

79

17

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

28

Minimum

118

116

113

0

147

366

136

0

0

0

0

0

88

0

July Aug.

74

Mean

133

122

215

150

423

598

r>-z

50.4

105

42 . 6

0 

2.4

193

174

Sept.

151

179

201

209

205

201

198

193

189

190

194

196

223

223

223

221

223

222

221

221

222

218

212

204

193

179

160

135

88

94

-

Runoff in 

acre-feet

8,190

7,240 

13,200

108,400

26,040

33,190

14,290

3,000

6,480

2,540

0

147

11,480

1 PR. son

Pacific war time thereafter.
372 KLAMATH RIVER BASIN

Diversion from Klamath River to Lost River near Olene, Oreg.

Location.- Staff gage above rectangular gate at wasteway, lat. 42°09', long. 121°42', 

in SWi sec. 30, T. 39 S., R. 10 E., 5 miles southwest of Olene.

Records available.- April 1931, when diversion began, to September 1942.

Extremes.- Maximum daily discharge during year, 240 second-feet June 13; no flow at 

times.

1931-42: Maximum daily discharge, 564 second-feet Apr. 13, 1933.

Remarks.- Records fair. Discharge computed from record of gate openings and gage readings 

at wasteway; water-stage recorder not used in 1942. Canal was built to divert water 

from Lost River to Klamath River and thereby aid in reclamation of bed of Tule Lake. 

(See record for Lost River diversion canal near Olene, Oreg.) 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.

Cooperation.- Records furnished by Bureau of Reclamation.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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. Dec. Jan. Feb. Mar. Apr.

0

0

0

0

0

0

0

0

0

0

0

0

17

59

63

25

20

10

10

10

10

5

5

65

103

105

105

43

O

0

-

May June

0

0

0

0

0

0

0

66

98

97

97

140

240

205

155

145

145

145

145

111

91

91

124

165

175

175

175

175

149

78

-

July

98

127

162

157

155

155

155

157

156

156

157

155

125

107

108

108

108

71

55

55

55

55

76

89

60

42

42

42

42

42

42

Aug.

15

0

0

0

0

0

26

39

16

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Sept.

Month

March ......................................

May...................... .................

Water year!941-42 ......................

Secondfoot-days

96

7,052

Maximum

39

240

Minimum

0

Mean

19.3

Runoff in 

acre-feet

13,990

Time basis;- Pacific standard tin.e prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standaBd time, subtract 1 hour.
KLAMA.TH RIVER BASIN 373 

Fall Creek at Copco, Calif.

Location.- Staff gage, lat. 41°58', long. 122°22', In NEi sec. 36, T. 48 N., R. 5 W., 

1,500 feet upstream from mouth and 0.8 mile south of Fall Creek power plant and Copco 

post office.

Records available.- July 1928 to September 1942.

Average discharge.- 14 years, 33.0 seccnd-feet.

Extremes.- Maximum discharge observed during year, 103 second-feet Feb. 6 (gage height, 

1.83 feet); minimum observed, 28 second-feet Oct. 3, 17, 18, 21-23.

1928-42: Maximum discharge, 241 second-feet Feb. 28, 1940 (gage height, 2.64 feet, 

observed at peak), from rating curve extended above 80 second-feet; minimum observed, 

12 second-feet (regulated) May 21, 1941 (gage height, 0.76 foot), from rating curve 

extended below 28 second-feet; minimum dally, 24 second-feet on many days In period 

June to September 1937.

Remarks.- Records good except those for periods of no gage-height record, which are fair. 

Gage read once dally. No diversion above station for Irrigation. Occasional diurnal 

fluctuation caused by power plant and fish ponds half a mile upstream.

Cooperation.- Gage readings furnished by The California Oregon Power Co. and California 

State Division of Fish and Game.

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

1.0 

1.2 

1.4

1.6 

1.8

Discharge, in second-feet, water year October 1941 to September 1942

Day

I

2

S

4

5

6

7

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.

29

29

28

30

30

29

29

29

29

29

29

29

29

29

29

29

28

28

30

29

28

28

28

29

a30

30

30

30

31

30

30

Nov.

33

31

31

a31

a31

31

30

30

30

30

31

29

29

33

34

a33

32

31

30

a30

30

30

30

30

30

a30

30

31

31

a31

-

Dec.

a31

37

a36

a35

a34

a33

a33

33

a32

32

a32

e32

a33

a36

a 40

69

45

81

64

52

41

41

40

40

a 38

37

35

34

35

35

35

Jan.

a34

34

35

34

34

34

a35

a37

38

a38

40

37

35

a35

35

35

35

35

a34

33

34

35

35

a 40

41

40

81

a60

a 50

a 43

38

Feb.

35

a37

39

66

60

99

76

a60

51

47

45

41

39

39

a3S

38

37

36

37

35

38

35

35

35

34

33

35

35

_

_

-

Mar.

34

34

34

33

33

33

35

a34

33

34

34

34

34

33

34

33

34

34

34

33

33

a33

33

33

33

34

34

34

34

34

34

Apr.

a34

a34

a34

34

34

34

34

34

a34

a34

34

34

34

34

34

34

34

33

34

34

33

31

a32

a32

a32

a34

a38

a36

34

34

-

Hay

34

33

33

33

a33

35

33

33

33

33

34

a33

33

a33

a33

a33

a33

33

33

&S5

a 33

a 40

a36

34

a 40

38

37

a36

a34

a34

a33

June

33

34

a33

a33

33

a33

a32

a32

a31

a31

30

30

30

a30

a30

30

30

30

a30

a30

a30

31

31

a31

31

32

a 32

31

31

30

-

July

31

30

30

29

a30

30

31

30

30

30

a30

a30

30

30

30

31

30

a30

a30

30

30

29

29

29

30

29

30

a3O

30

30

30

Aug.

30

30

30

30

29

30

30

30

30

30

29

30

30

30

29

30

30

30

30

30

30

30

30

30

30

30

a30

30

31

30

a30

Sept.

a30

30

31

31

30

30

31

30

31

31

30

30

30

31

30

31

31

31

31

30

30

30

a30

30

30

30

30

a30

31

31

Month

November . ..................................

Maroh. ............................ .......

April.. ...................... .............

May. .......................................

July. ......................................

Water year 1941-42 ......................

Secondfoot-days

904 

923

11,428

1..204 

1,235 

1,043 

1,015 

1,057 

935 

928 

928 

912

12,315

MaziBUB

31 

34 

81

94

81 

99 

35 

38 

40 

34 

31 

31 

31

99

MiniauB

28 

29 

31

28

33 

33 

33 

.31 

33 

30 

29 

29 

30

28

Mean

29.2 

30.8 

39.7

31.3

38.8 

44.1 

33.6 

33l8 

34.1 

31.2 

29.9 

29.9 

30.4

33.7

Runoff in 

ao re-feet

1,790 

1,830 

2,440

22,670

2,390 

2,450 

2,070 

2,010 

2,100 

1,850 

1,840 

1,840 

1,810

24,420

a Ho gage-height record; discharge interpolated or computed on basis of weather records. 

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard tin.«, subtract 1 hour.
374 KLAMATH RIVER BASIN

Keene Creek Canal near Ashland, Oreg.

Location.- Water-stage recorder, lat. 42°09', long. 122°30', in NWi sec. 29, T. 39 S., R.

 3 E-, 400 feet upstream from short tunnel through Cascade Divide, 2 miles north of 

Ashland-Klamath Falls highway, and 16 miles southeast of Ashland.

Records available.- June 1923 to September 1942 (some years incomplete).

Extremes.- Maximum discharge during year, 72 second-feet Aug. 16-19 (gage height, 2.45 

feet )', no flow at times.

1923-42: Maximum discharge, 91 second-feet Aug. 2, 3, 1938, July 23, 1939; no flow 

at times.

Remarks.- Records good except those for period April 1 to June 17, which are poor. Water

 released from Hyatt Prairie Reservoir is diverted by this canal from Keene Creek In SEi 

sec. 20, T. 39 S., R. 3 E., and discharged Into Emigrant Creek Basin for irrigation of 

lands near Ashland and Talent. Stored water released from reservoir June 20 to 

Sept. 30.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

1

a

9

10

11

12

13

14

15

16

17

IS

19

20

21

22

23

24

25

26

27

28

29

30

31

Oct. Nov. Dec. Jan. Feb. Mar. Apr.

, aO.4

6

12

6

a6

a6

a6

a5

a5

a5

a5

h5

a4.9

84. S

a4.6

a-4.7

a4.6

a4.6

a4.5

h4.4

a4.6

a4.9

May

a7

9

9

6

S

S

6

8

9

9

6

6

7

7

7

June

7

7

7

7

7

7

7

7

7

7

8

7

7

7

7

7

3.7

1.6

4.6

21

23

21

20

19

19

17

16

15

15

15

July

14

14

15

17

18

19

21

21

21

21

21

21

SI

21

21

21

21

21

21

21

- 21

21

21

20

20

20

20

44

67

67

67

Aug.

67

6S

6S

68

69

69

69

69

70

70

71

71

71

71

71

72

72

72

69

67

67

67

59

55

55

55

43

32

30

22

22

Sept.

22

22

21

21

20

20

20

24

56

57

56

56

20

20

18

12

8

7

7

7

7

7

5

6

39

58

57

56

44

29

Month

December. ..................................

April. .....................................

Uav

September. ................... .............

The period

Secondfoot-days

323 9

782

_

Maximum

58

_

Minimum

5

-

Mean

3 91

26.1

_

Runoff in 

acre-feet

233

1,550

8,200

a Ho gage-height record; discharge Interpolated or extrapolated, 

h Computed from staff-gage reading.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
KLAHATH RIVER BASIN 375

Scott River near Fort Jones', Calif.

Location.- Water-stage recorder, lat. 41 038'35 n , long. 123°00'35", in NWi sec. 28, T. 

44 N., R. 10 W., 150 feet south of road from Fort Jones to Scotts Bar, 1.8 miles 

upstream from Snow Creek;, and about 10.5 miles downstream from Fort Jones. Datum of 

gage Is 2,625.80 feet above mean sea level (levels by Corps of Engineers, U. S. Army).

Drainage area.- 656 square miles.

Records available.- December 1941 to September 1942.

-Extremes.- Maximum discharge during period, 5,050 second-feet Dec. 17 (gage height, 9.50 

feet;, from rating curve extended above 3,600 second-feet; minimum, 60 second-feet

Floodmarks indicate stages of about 14 feet, dates not known.

Remarks.- Records good. Many small diversions for irrigation in Scott Valley during the 

summer.

Cooperation.- Water-stage recorder graph from Dec. 17 to Apr. 13 and 12 discharge measurements furnished by Corps of Engineers, U. S. Army.

3.8 560

4.1 690

4.4 830

4.8 1,040

Rating tables, water year 1941-42 (gage height, In feet, and dlaohat-ge 

In second-feet)

Dec. 17 to Feb. 6

5.2 1,280

5.6 1,540

6.0 1,820

6.5 2,210

7.0 2,650

8.0 3,550

9.0 4,550

1.5 

1.8 

2.1 

2.4 

2.8

54

84

123

170

246

Feb. 7 to Sept. 30

340

454

586

790

1,060

5.5

6.0

1,410

1,810

2,210

2,650

3,550

Discharge, in second-feet, water year October 1941 to September 1942

Day

5

10

15

19

20

22

23

25

f.R

27

28

S9

30

31

Oct. Nov. Dec.

_

_

_

_

-

_

-

-

-

-

_

-

-

-

-

_

4,170

3,220

3,650

3,550

2,580

2,000

1,830

1,610

1,400

1,240

1,120

1,050

1,000

930

880

Jan.

771

681

a660

a635

614

592

1,090

1,950

1,620

1,370

1,240

1,150

1,100

1,030

986

940

890

845

805

776

748

771

960

1,210

1,820

1,640

2,210

2,110

1,720

1,490

1,400

Feb.

1,360

1,720

1,740

2,270

2,700

3,550

3,100

a2,700

a2,300

a2,000

al,700

al,500

1,340

1,210

1,140

1,060

994

964

920

880

880

850

805

800

781

754

722

692

-

-

-

Month

Deceaber 17-31 ... .........................

Calendar year ......................

March. .....................................

May........................................

July .......................................

Septcnber. .................................

The period. ........ ......................

liar.

676

660

637

622

618

626

637

633

641

680

718

718

709

692

680

656

637

618

604

590

576

555

a545

a540

a535

a525

a520

512

508

505

515

Apr.

532

535

542

579

608

611

608

633

680

750

815

915

1,050

1,180

1,020

935

910

835

800

825

825

970

958

890

855

825

781

745

684

660

~

Secondfoot-days

30,230

-

35,824

41,432

18,888

39,512

31,734

9,111

2,778

2,035

-

May

645

611

597

586

562

566

618

754

880

865

835

800

736

722

745

772

763

S10

875

1,160

1,750

2,390

2,240

2,110

3,140

3,820

2,520

2,000

1,730

1,510

1,400

Maximum

4,170

-

2,210

3,550

718

1,180

3,820

1,850

583

110

74

-

June

1,420

1,570

1,590

1,670

1,760

1,850

1,590

1,490

1,400

1,320

 1,190

1,070

1,020

1,050

1,090

1,020

920

860

795

740

700

672

660

649

645

645

618

586

572

572

-

Minimum

S80

-

592

692

505

562

572

115

75

61

-

July

576

583

562

542

528

515

430

369

374

343

327

317

292

277

259

248

246

242

231

a220

a210

194

173

156

146

138

134

128

119

117

115

Aug.

110

110

109

105

105

105

104

101

99

96

94

92

91

91

89

88

86

85

84

83

83

82

80

78

77

76

75

75

75

75

75

Mean

2,015

-

1,156

1,480

609

785

1,275

1,058

294

89.6

67.8

-

Sept.

74

74

73

72

72

72

72

72

72

72

71

71

70

69

68

67

66

65

65

65

65

64

64

64

64

63

63

63

62

61

~

Runoff in 

acre feet

_

59,960

-

71,060

82,180

37,460

46,720

78,370

62,940

18,070

5,510

4,040

466,300

Pe»k dlacnar 

4,110 sec.-ft.

harge.- Dec. 17 (7 a.m.) 5,050 sec.-ft.; Feb. 6 (4 p.m.) 3,850 sec.-ft.; May 26 (8 a.m.)

a Ho gage-height record; discharge Interpolated. 

Time basis; Pacific standard tine prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war tine to standard tins, subtract 1 hour.
376 RIVER BASIN 

Salmon River at Sor.esbar, Calif.

Location.- Water-stage recorder, lat. 41°23', long. 123°28', in NWi sec. 2, T. 11 N., R. 

6 E., half a mile east of Somesbar post office and 14 miles upstream from mouth. 

Altitude of gage, about 500 feet (from topographic map).

Drainage area.- 737 square miles.

Records available.- September 1911 to September 1915, October 1927 to September 1942.

Average discharge.- 16 years (1911-13, 1927-29, 1930-42), 1,510 second-feet.

Extremes.- Maximum discharge during year, 21,100 second-feet Dec. 2 (gage height, 12.70 

feet); minimum, 167 second-feet Sept. 23-29.

1927-42: Maximum discharge, 27,000 second-feet Dec. 11, 1937 (gage height, 14.80 

feet), from rating curve extended above 7,000 second-feet; minimum, 70 second-feet 

Aug. 25, Sept. 4, 5. 1931.

Remarks.- Records good except those below 2,000 second-feet in December and January, 

which are fair. No large diversions above station.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

212

195

195

191

191

191

191

195

195

200

195

222

234

217

212

200

195

191

191

206

217

212

206

206

200

206

262

292

280

262

250

Nov.

256

349

362

412

368

316

H92

274

262

256

250

244

274

1,460

1,660

1,750

997

725

593

522

474

450

435

412

398

382

375

382

522

1,320

-

Dec.

953

11,200

10,800

4,600

3,400

2,670

2,110

1,720

1,440

1,250

1,090

984

1,010

1,760

3,970

9,170

6,440

9,840

10,300

8,430

5,960

4,660

4,340

3,760

3,320

2,920

2,640

2,370

2,180

1,990

1,840

Jan.

1,680

1,590

1,520

1,430

1,360

1,450

5,300

6,630

4,990

4,160

3,760

3,460

3,100

2,840

2,640

2,440

2,240

2,080

1,910

1,810

1,740

1,740

1,890

2,150

2,840

3,600

5,140

4,620

3,960

3,500

3,200

Feb.

3,460

4,620

4,910

7,170

7,130

10,100

7,810

6,400

5,290

4,510

3,960

3,580

3,240

2,960

2,740

2,540

2,370

2,250

2,080

1,990

1,940

1,830

1,740

1,740

1,620

1,560

1,520

1,460

-

-

-

Mar.

1,430

1,450

1,430

1,420

1,480

1,530

1,520

1,560

1,630

1,830

1,830

1,800

1,780

1,680

1,590

1,520

1,490

1,460

1,430

1,390

1,390

1,380

1,360

1,340

1,310

1,270

1,260

1,250

1,230

1,260

1,350

Apr.

1,410

1,380

1,480

1,600

1,560

1,520

1,590

1,680

1,810

1,830

1,990

2,220

2,420

2,310

2,110

2,080

1,960

1,840

1,880

2,010

2,180

2,400

2,150

2,020

1,960

1,860

1,910

1,780

1,640

1,760

-

Hay

1,700

1,630

1..660

1,660

1,660

1,780

2,060

2,400

2,560

2,180

2,110

1,920

1,810

1,990

2,480

2,500

2,440

2,560

2,700

3,640

4,700

4,740

4,040

4,240

8,540

6,130

4,870

4,660

4,510

4,200

3,960

June

3,920

4,040

3,860

3,960

4,220

4,000

3,440

3,320

3,340

3,200

2,880

2,680

2,760

2,920

2,980

2,640

2,290

2,160

1,990

1,880

1,800

1,780

1,830

1,750

1,860

1,760

1,530

1,480

1,530

1,570

-

July

,570

,530

,450

,350

,250

1,160

1,080

1,020

946

913

880

820

790

770

770

770

720

700

670

661

632

604

576

567

531

504

487

479

463

439

423

Aug.

408

401

387

373

366

359

345

339

333

327

321

309

303

297

285

280

274

274

274

268

263

252

246

241

236

236

236

241

241

236

230

Sept.

225

220

215

210

205

205

205

210

246

236

225

220

210

200

195

190

185

176

172

176

176

172

167

167

167

167

167

167

167

172

-

Month

November. ..................................

May..................... ............... ..

Water year 1941-42 ... ..................

Secondfoot-days

6,612

16,772

129,117

707,923

90,770

102,520

45,650

56,340

98,030

79,370

25,525

9,181

5,815

665,702

Maximum

292

1,750

11,200

11,200

6,630

10,100

1,830

2,420

8,540

4,220

1,570

408

246

11,200

UiniBun

191

244

953

187

,360

,460

,23O

,38b

,630

,480

423

230

167

167

Mean

213

559

4,165

1,940

2,928

3,661

1,473

1,878

3,162

2,646

823

296

194

1,824

Runoff in 

acre-feet

13,110

33,270

256,100

1,404,000

180,000

203,300

90,550

111,700

194,400

157,400

50,630

18,210

11,530

1,320,000

Peak disc .- Dec. 2 (9 p.m.) 21,100 sec.-ft.; Dec. 16 (10-30 a.m.) 11,700 sec.-ft.; Dec. 18 

p.m.; j.u,»uu see.-ft.; Jan. 7 (8 p.m.) 7,860 sec.-ft.; Feb. 6 (8 a.m.) 11,000 sec.-ft.; Hay 2f 

(10:30 a.m.) 10,000 aec.-ft.

Time basla: Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
KLAMATH RIVER BASIN 377

Trinity River at Lewiston, Calif.

Location.- Water-stage recorder, lat. 40°42', long. 122°48', in NEi sec. 19, T. 33 N., R. 

8 W., at highway bridge at Lewiston, 0.8 mile downstream from Deadwood Creek. Datum 

of gage is 1,794.10 feet above mean sea level, datum of 1929.

Drainage area.- 724 square miles.

Records available.- August 1911 to September 1942.

Average discharge.- 31 years, 1,554 second-feet.

Extremes.- Maximum discharge during year, 28,900 second-feet Dec. 16 (gage height, 18.98 

feet}, from rating curve extended above 8,000 second-feet; minimum, 144 second-feet 

Oct. 5.

1911-42: Maximum discharge, 40,300 second-feet Feb. 28, 1940 (gage height, 20.8 

feet), from rating curve extended above 12,500 second-feet; minimum, 23 second-feet 

July 30, 1924.

Remarks.- Records good except for periods Feb. 2-7 and Apr. 20-23, which are fair. Diversions above station for Irrigation, power, and placer minimg.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1 

2 

3 

4 

5

6 

7 

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.

233 

222 

215 

219

212

222 

222 

230 

230 

230

226 

244 

262 

266 

251

240 

226 

222 

230 

248

251 

251 

244 

233 

230

255 

494 

481 

416 

372 

340

Nov.

348 

456 

477 

566 

49S

440 

404 

376 

360 

344

332 

304 

320 

1,270 

1,240

1,120 

840 

685 

584 

527

485 

460 

436 

408 

392

380 

368 

368 

670 

2,430

Dec.

1,590 

13,200 

12,400 

4,126 

2,720

2,080 

1,670 

1,410 

1,230 

1,100

995 

924 

1,020 

2,320 

7,120

19,700 

9,240 

7,380 

8,030 

9,260

5,990 

4,390 

3,680 

3,080 

2,650

2,310 

2,120 

1,930 

1,930 

1,730 

1,660

Jan.

1,460 

1,360 

1,290 

1,210 

1,130

1,110 

1,810 

2,390 

2,200 

2,200

2,230 

2,260 

2,130 

2,060 

1,930

1,910 

1,730 

1,640 

1,530 

1,440

1,360 

2,250 

5,120 

8,090 

8,660

10,000 

14,000 

3,580 

6,020 

4,790 

4,180

Feb.

4,680 

10,500 

8,250 

10,900 

9,900

11,200 

7,940 

6,070 

4,910 

4,180

3,690 

3.380 

3,040 

2,790 

2,590

2,440 

2,280 

2,200 

2,080 

2,000

1,900 

1,820 

1,730 

1,710 

1,620

1,560 

1,510 

1,450

Month

Octo 

Nove 

Dece

Ca

Janu 

Febr 

Hare 

Apri 

May.

June 

July 

Augu 

Sept

Ha

ber. ........................... . . ....

lendar year 1941 

ary

h. .....................................

st .....................................

ember. .... . . .....

ter year 1941-42 ...............

Peak discharge.- D

(9:30 p.m.) 11,300 s 

ft.; May 25 (12:30 p 

a No gage-height r 

Time basis: Pacif

To convert war time 

530350 O - 43 - 25

Mar.

1,420 

1,460 

1,430 

1,500 

1,650

1,840 

1,860 

1,940 

2,000 

2,130

2,220 

2,150 

2,060 

1,970 

1,840

1,720 

1,640 

1,620 

1,580 

1,550

1,560 

1,620 

1,650 

1,640 

1,580

1,520 

1,490 

1,500 

1,530 

1,600 

1,820

Apr.

1 

1 

2 

2 

3

3 

3 

3 

3

4

4 

5 

5 

5 

5

5 

4 

4 

4 

4

4 

4 

4 

3 

3

3 

3 

3 

3 

3

Secondfoot days

8,217 

17,938 

139,079

1,346,998

108,220 

118,320 

53,140 

120,490 

180,160 

117,500 

31,700 

9,241 

5,538

909,543

,390 

,350 

,010 

,740 

,750

,600 

,310 

,350 

,800 

,340

,700 

,160 

,340 

,330 

,330

,130 

,840 

,490 

,440 

,400

,400 

,600 

,200 

,770 

,960

,360 

,960 

,760 

,470 

,710

May

3,520 

3,390 

3,380 

3,350 

3,470

3,830 

4,490 

5,470 

6,120 

4,920

4,380 

3,900 

3,560 

3,620 

4,060

4,010 

4,010 

4,400 

4,940 

6,360

9,190 

11,500 

3,490 

8,300 

18,400

10,300 

7,300 

5,950 

5,170 

4,750 

4,630

Maximum

494 

2,430 

19,700

27,000

14,000 

11,200 

2,220 

5,840 

18,400 

6,500 

2,260 

438 

227

19,700

June

4,900 

5,460 

5,310 

5,700 

6,500

6,360 

5,200 

5,010 

4,900 

4,660

4,330 

4,080 

4,170 

4,430 

4,510

3,930 

3,590 

3,380 

3,140 

2,880

2,730 

2,800 

2,870 

2,720 

2,620

2,380 

2,200 

2,160 

2,220 

2,260

Minimum

212 

304 

924

212

1,110 

1,450 

1,420 

1,850 

3,350 

2,160 

455 

220 

153

153

July

2,260 

2,190 

2,090 

1,940 

1,790

1,580 

1,440 

1,340 

1,210 

1,150

1,070 

964 

915 

380 

874

346 

795 

760 

735 

716

684 

653 

623 

606 

582

550 

531 

513 

483 

470 

455

Aug.

438 

424 

407 

400 

383

374 

364 

343 

335 

322

313 

307 

293 

295 

239

283 

275 

a270 

a265 

a260

a255 

a250 

a245 

a240 

a235

a230 

227 

227 

232 

230 

220

Mean

265 

598 

4,486

3,690

3,491 

4,226 

1,714 

4,016 

5,312 

3,917 

1,023 

293 

185

2,492

Sept.

213 

206 

206 

203 

201

201 

196 

191 

213 

227

222 

215 

206 

193 

189

1S2 

171 

166 

164 

166

166 

164 

162 

162 

160

158 

153 

153 

160 

164

Runoff in 

acre feet

16,300 

35,580 

275,900

2,672,000

214,700 

234,700 

105,400 

239,000 

357,300 

233,100 

62,880 

18,330 

10,900

1,304,000

ec. 2 (10 p.m.) 26,400 sec. -ft.; Dec. 16 (2 p.m.) 28,900 sec. -ft.; Jan. 24 

ec.-ft.; Jan. 27 (6:30 a.m.) 15.6OO sec. -ft.; Feb. 5 (10:30 p.m.) 13,900 sec.- 

.m.) 24,000 sec. -ft. 

ecord; discharge interpolated. 

ic standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter, 

to standard time, subtract 1 hour.
13/0 KLAMATH RIVER BASIN

Trinity River near Hoopa, Calif.

Location.- Water-stage recorder, lat. 41°02', long. 123°39', in SEi sec. 31, T. 8 N., R. 

5 E., on Hoopa Indian Reservation, half a mile dovmstream from Campbell Creek and 2 

miles southeast of Hoopa. Altitude of gage, about 315 feet (from river-profile map).

Drainage area.- 2,840 square miles.

Records available.- October 1931 to September 1942. October 1911 to January 1914 and 

November 1916 to August 1918 at site at Hoopa, 2 miles dovmstream.

Average discharge.- 13 years (1911-13, 1931-42), 5,420 second-feet.

Extremes.- Maximum discharge during year, 69,000 second-feet Feb. 6 (gage height, 23.25 

feet); minimum, 514 second-feet Sept. 29 (gage height, 3.46 feet).

1911-14, 1916-18, 1931-42: Maximum discharge, 124,000 second-feet Feb. 28, 1940 

(gage height, 31.2 feet), from rating curve extended above 60,000 second-feet; minimum, 

162 second-feet Oct. 4, 1931.

Remarks.- Records good. Small diversions above station for minimg and irrigation.

Rating tables, water yea 1941-42 (gage height, in feet, 

in second-feet)

nd discharge,

Oct. 1 to Feb. 6 Feb. 7 to Sept. 30

3.9 

4.2

650

790

1,000

1,230

1,560

6.0 

6.5 

7.0 

8.0 

9.0

1,950 

 2,400 

3,010 

4,600 

6,800

9,300

14,800

21,850

30,600

40,000

50,200

64,400

3.4

3.6

4.2 

4.6

492

564

680

806

1,000

Hote.- Same as 

preceding table 

above 4.6 feet.

Discharge, in second-feet, water year October 1941 to September 1942

Day

1

2

3

4

5

6

7

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.

690

686

677

664

654

650

654

664

668

677

672

708

726

740

740

736

718

700 695-

700

722

731

736

718

700

726

923

1,150

1,200

1,060

984

Nov.

967

1,070

1,290

1,340

1,380

1,270

1,150

1,070

1,020

967

934

906

912

1,230

2,590

3,340

2,870

2,180

1,810

1,590

1,440

1,330

1,280

1,230

1,180

1,140

1,110

1,100

1,250

3,010

-

Dec.

4,320

17,800

44,400

18,100

10,300

7,550

5,880

4,87Q

4,200

3,780

3,420

3,090

3,010

6,370

13,200

41,300

38,000

46,000

40,000

34,200

26,100

18,900

16,200

13,800

11,700

10,300

9,420

8,680

8,250

7,720

7,220

Jan.

6,660

6,100

5,820

5,510

5,200

5,240

12,000

21,300

15,700

12,900

11,700

10,900

10,200

9,400

8,720

8,250

7,620

7,150

6,660

6,250

5,930

5,900

8,350

15,100

26,300

23,100

31,700

29,500

22,000

17,700

15,000

Feb.

14,800

27,600

32,100

40,600

42,400

62,900

49 , 500

39,900

32,200

26,000

21,000

17,900

15,500

13,500

12,100

11,100

10,300

9,700

9,120

8,580

8,150

7,750

7,300

7,080

6,750

6,370

6,130

5,900

-

-

-

Mar.

5,680

5,510

5,490

5,400

5,400

5,640

5,750

5,710

5,790

5,990

6,320

6,270

6,250

6,010

5,770

5,440

5,290

5,200

5,160

5,010

4,950

4,930

4,910

4,870

4,750

4,600

4,460

4,350

4,320

4,300

4,420

Apr.

4,790

4,680

4,990

5,860

7,150

8,050

7,420

7,020

7,080

7,500

7,920

8,220

8,820

10,400

10,800

10,600

10,700

10,200

9,780

9,780

9,850

9,960

9,650

8,700

8,280

8,000

7,800

7,700

7,020

6,950

-

Hay

7,880

7,100

6,800

6,800

6,610

6,610

7,050

7,980

9,000

8,900

8,150

7,400

6,780

6,580

7,620

7,980

7,720

7,720

8,050

9,500

11,900

14,800

13,000

11,800

20,300

25,200

16,300

14,600

13,600

12,100

11,200

June

10,800

10,900

10,800

10,700

11,000

11,600

10,300

9,400

9,180

8,900

8,350

7,800

7,620

7,850

8,080

7,720

6,880

6,370

6,010

5,640

5,330

5,200

5,240

5,160

5,010

4,830

4,420

4,250

4,230

4,270

-

July

4,280

4,250

4,150

4,000

3,740

3,500

3,260

3,070

2,860

2,690

2,580

2,440

2,300

2,240

2,210

2,190

2,120

2,030

1,970

1,930

1,880

1,820

1,750

1,690

1,630

1,560

1,500

1,460

1,400

1,350

1,310

Aug.

1,280

1,250

1,220

1,180

1,150

1,100

1,070

1,040

1,020

990

965

945

930

905

886

866

852

843

824

802

793

771

749

737

724

712

712

716

720

720

712

Sept.

696

672

660

644

644

640

636

640

672

708

712

700

676

660

636

617

598

587

564

553

550

553

550

542

535

528

528

524

521

521

-

Month

Calendar year 1941 ......................

April. .....................................

Water year 1941-42 ......................

Secondfoot-days

23,469

43,956

488,080

3,461,206

383,860

552,230

163,940

245,670

317,030

223,780

28,184

18,267

2,563,626

Maximum

1,200

3,340

46,000

69,000

31,700

62,900

6,320

10,800

25,200

11 , 600

1,280

712

62 , 900

Minimum

650

906

3,010

650

4,300

4,680

4,230

712

521

52.1

Mean

1,465

15,740

9,483

8,189

7,459

909

7,024

Runoff in 

acre- feet

87,190

968,100

6,865,000

487,300

55,900

5,085,000

Peak discharge.- Dec. 3 (5 a.m.) 57,200 aec.-ft.; Dec. 16 (10:30 p.m.) 53,100 sec.-ft.; Jan. 27 

(6 p.m.) 34,700 sec--ft.; Feb. 4 (7:30 p.m.) 48,800 sec.-ft.: Feb. 6 (9:30 a.m.) 69,000 sec.-ft.' 

May 25 (11:30 p.m.) 32,200 sec.-ft.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
SMITH RIVER BASIN 379

Smith River near Crescent City, Calif.

Location.- Water-stage recorder, lat. 41°47', long. 124°04', In SWi sec. 10, T. 16 N., R.

 IE., half a mile downstream from South Fork and 9 miles east of Crescent City.

Drainage area.- 613 square miles.

Records available.- October 1931 to September 1942.

Average discharge.- 10 years (1931-37, 1938-42), 3,187 second-feet.

Extremes.- Maximum discharge during year, 62,400 second-feet Dec. 18 (gage height, 26.4

 feet), from rating curve extended above 23,500 second-feet; minimum, 236 second-feet 

Sept. 19, 23-25 (gage height, 3.70 feet).

1931-42: Maximum discharge, 78,900 second-feet either Nov. 20 or Dec. 11, 1937 

(gage height, 29.4 feet, from floodmarks in well), from rating curve extended above 

23,500 second-feet; minimum, 168 second-feet Oct. 21, 1931.

Remarks.- Records excellent except those for periods of no gage-height record, which are 

rair. No diversion or regulation.

3.7 

4.0 

4.5 

5.0 

5.5

Rating table, water year 1941-42 (gage height, in feet, and discharge, 

in second-feet)

236

314

465

650

865

6.0 

6.5 

7.0 

8.0 

9.0

1,110 

1,430 

1.S30 

2,780 

3,940

10

11

12

13

14

5,280

6,900

8,850

11,060

13,400

15

16

17

19

81

16,040

18,900

21,900

28,500

36,300

45,000

50,000

Discharge, in second-feet, water year October 1941 to September 1942

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

Oct.

267

265

262

262

262

259

259

262

262

265

272

385

364

304

283

278

272

278

296

288

275

270

265

259

257

309

598

510

424

362

339

Nov.

370

465

808

1,250

757

563

479

421

391

373

359

348

468

6,120

13,400

9,400

6,020

3,820

2,650

2,060

1,660

1,420

1,270

1,150

1,050

985

930

906

980

2,190

-

Dec.

2,160

37, 600

25,700

14,000

11,600

7,560

5,540

4,380

3,660

3,140

2,720

2,430

2,590

4,660

14,900

28,200

21,800

47,800

30,300

22,600

15,200

11,600

14,200

11,300

8,810

7,000

6,030

5,280

4,850

4,630

4,270

Jan.

3,330

3,460

3,150

2,910

2,690

3,040

26,400

24,000

13,600

9,230

7,030

5,750

4,890

4,270

3,940

3,980

3,690

3,390

3,090

2,840

2,650

2,550

2,630

2,930

4,380

12,000

18,800

13,600

9,140

6,790

5,950

Feb.

S,050

12,700

19,900

28,900

20,200

26,000

20,800

15,900

11,000

8,410

6,720

5,660

4,860

4,310

3,870

3,510

3,180

2,940

2,720

2,730

2,550

2,350

2,310

2,910

2,710

2,550

2,600

2,580

-

-

-

Mar.

2,500

2,550

2,580

2,410

2,270

2,170

2,050

1,970

2,070

2,850

2,680

2,530

2,720

2,720

2,690

2,740

3,120

3,240

3,09a

2,910

2,790

2,640

2,480

2,260

2,090

1,940

1,800

1,710

1,640

1,620

1,690

Apr.

,970

,780

,070

,290

,140

,970

,860

,770

,740

,710

,650

,600

,720

,380

4,290

3,720

3,800

3,600

3,190

2,850

2,580

2,330

2,100

1,940

1,800

1,680

1,900

2,060

1,960

3,110

-

May

4,500

3,810

3,480

a3,800

a3,500

a3,100

a2,800

82,600

a2,600

2,890

3,880

4,020

83,500

a3,400

83,900

83,600

3,280

2,960

2,640

2,560

2,540

a2,500

82,300

2,060

817,000

812,000

89,000

815,000

811,000

8,450

6,550

June

5,280

4,450

3,940

3,480

3,120

2,910

2,660

2,430

2,400

2,180

2,030

1,880

1,740

1 1,660

1,620

1,540

1,440

1,370

1,320

1,270

1,210

al,200

al,150

al,150

al,200

al,150

81,100

1,050

1,000

960

-

July

930

892

865

842

820

802

793

780

752

734

734

718

698

682

698

694

678

638

610

590

578

563

549

535

521

500

490

486

476

468

462

Aug.

458

454

440

437

427

418

409

400

400

400

397

382

367

362

359

359

350

342

336

331

325

320

314

311

309

306

306

309

306

298

293

Sept.

288

288

288

288

283

280

278

278

301

298

283

272

267

262

259

252

246

241

236

239

239

239

236

236

236

241

244

241

241

239

-

Month

March.. ....................................

May............. ....................... ..

Water year 1941-42 ......................

Secondfoot-days

9,513

63,063

386,510

1,329,486

216,600

232,920

74,520

69,560

155,220

59,890

20,578

11,225

7,819

1,307,418

Maximum

598

13,400

47,800

47,800

28,900

3,240

4,290

17,000

5,280

930

458

301

47,800

Minimum

348

2,160

257

1,620

2,060

960

293

236

236

Mean

307

2,102

12,470

2,404

1,996

362

261

3,582

Runoff in 

acre-feet

18,870

766,600

147,800

307,900

118,800

15,510

2,593,000

Peak discharge.- Dec. 2 (2 p.m.) 53,000

a Ho gage-height record; discharge computed on basis recorded range in stage, weather records,

and records for nearby streams.

Time basis; Pacific standard time prior to 2 a.m., Feb. 9, 1942; Pacific war time thereafter. 

To convert war time to standard time, subtract 1 hour.
360 MISCELLANEOUS DISCHARGE MEASUREMENTS

In addition to the records of stream flow obtained at gaging stations in the Pacific 

slope basins in California and reported in the preceding pages, measurements of flow were 

made at other points as shown in the following table:

Miscellaneous discharge measurements In the Pacific slope basins In California during 

water year October 1941 to September 1942

STREAMS SOUTH OP SAN FRANCISCO BAY 

Cottonwood Creek at Morena Dam spillway, Calif.

Date

Apr. 10

Discharge 

(sec. -ft.)

16.4

Date

Apr. 27

Discharge 

(sec. -ft.)

5.7

Date

June 4

Discharge 

(sec. -ft.)

0.73

Date

July 10

Discharge 

(sec. -ft. )

0.67

Cottonwood Creek 4-j^ miles below Barrett Dam, Calif.

Feb. 19 

26 

Mar. 5

24.4 

53 

29.0

Mar. 12 

16 

23

20.3 

183 

35.4

Mar. 30 

Apr. 10 

20

24.2 

29.5

28.4 ;

Apr. 27 5.1

Tecate Creek at Cottonwood Creek, near Dulzura, Calif.

Dec. 11 35.5 {I Feb. 5 13.3 || Apr. 13 17.5 || May 12 4.4

San Dlegulta River below Hodges Dam, Calif.

Apr. 23 26.2 || May 1 60 || May 29 tO.2 ||

t Estimated. 

San Luls Rey River at crossing at Bonsall, Calif.

Oct. 1 6.7 || Dec. 15 47.6 || II

San Luls Rey River at Rancho Guajomlta, Calif.

Oct. 1 7.4 || Dec. 15 | 53 || IT

San Luls Rey River l£ miles above San tuis Rey, Calif. 

Dec. 15, 46.4 second-feet

San Luls Rey River at highway bridge at San Luls Rey, Calif. 

Dec. 15, 51 second-feet

Arroyo Seco at Nigger Canyon, near Temecula, Calif.

Nov. 25 

Dec. 16 

Jan. 13

0.95 

1.8 

2.6

Feb. 17 

Mar. 26 

Apr. 16

1.7 

4.0 

3.3

May 19 

June 16 

July 14

1.3 

.50 

.14

Aug. 25 

Sept. 15

0.08 

.07

Santa Ana River below powerhouse No. 3, near Mentone, Calif. 

Jan. 23, 52 second-feet

Santa Ana River near Prado, Calif.

Dec. 1 

12 

12 

20 

Jan. 9 

10 

20 

23

101

leo

173 

149 

187 

165 

187 

203

Jan . 23 

29 

Feb. 6 

7 

13 

21 

27 

28

201 

188 

166 

157 

143 

111 

160 

152

Feb.. 28 

Mar. 5 

7 

7 

12 

14 

14 

20

146 

131 

111 

112 

133 

127 

118 

193

Mar. 21 

dpr. 2 

4 

11 

16 

18 

25 

29

155 

91 

134 

247 

150 

161 

124 

108

Santa Ana River 1,600 feet upstream from 

Anaheim Union Water Co. diversion, near Prado, Calif.

May 16 

21 

June 4 

4

11

97 

86 

72 

67 

68

June 18 

25 

July 2 

9 

23

78 

62 

56 

49.2 

49.0

July 30 

Aug. 6 

13 

20 

27

42.2 

38.2 

49.0 

48.0 

46.3

Sept. 3 

10 

17 

24

57 

57 

58 

54

Santa Ana River 600 feet upstream from 

Anaheim Union Water Co. diversion, near Prado, Calif.

Apr. 25

May 9

21

28

June 4

4

116

91

77

82

73

75

June 11

11

18

18

25

July 2

76

79

91

87

64

60

July 9

16

23

30

Aug. 6

13

54

42.7

49.9

46.2

42.3

53

Aug. 20

Sept. 3

10

17

24

53

57

65

57

55
MISCELLANEOUS DISCHARGE MEASUREMENTS 381

Miscellaneous discharge measurements in the Pacific slope basins In California during 

water year October 1941 to September 1942 Continued

STREAMS SOUTH OP SAN FRANCISCO BAY--Continued 

Santa Ana River Juat above Anaheim Union Water Co. diversion, near Prado, Calif.

Date

Nov. 7 

7 

15

Discharge 

(sec. -ft.)

97 

102

107

Date

Nov. 15 

29 

29

Discharge 

(sec. -ft.)

106 

97 

102

Date

Dec. 12 

20 

Apr. 18

Discharge 

(sec. -ft.)

26.7 

136 

156

Date

Hay 28

28

Discharge 

(sec. -ft. )

82 

80

Santa Ana Rlv at Santa Ana Valley Irrigation Co. diversion, near Prado* Calif.

Jan. 

Feb.

10 

28

149 

74

| Feb. 28 69 II Mar. 7 29.6 II- 7 1 36.4

Santa Ana River at Yorba Bridge, near Yorba, Calif.

Dec. 12

26

31

Jan. 5

10

20

179

258

317

128

139

111

Jan. 30

Feb. 6

13

27

Mar. 6

7

141

124

67

77

41

26.5

Mar. 13

20

27

Apr. 3

8

10

54

108

39.7

6.8

t7.0

22.8

Apr. 11

15

17

May 8

22

June 5

248 tioo

87

17.6

0

0

t Estimated.

Santa Ana River at Jefferson Street Bridge, near Atwood, Calif.

Dec. 12

26

31

Jan. 5

30

67

86

137

35.0

27.6

Feb. 6

13

Mar. 6

12

20

59

6.4

4.7

t2.0

9.9

Apr. 3

10

11

15

17

0

0

27.7

t30.0

6.7

May 8

22

June 5

0

0

0

t Estimated.

Santa Ana River at Anaheim-Olive Bridge, near Olive, Calif.

Dec. 12 

26 

31 

Jan. 5 

10

7.0 

24.8 

41.0 

3.2 

14.6

Jan. 20 

30 

Feb. 6 

13 

Mar. 6

13.7 

tl.O 

2.5 

t.25 

0

Mar. 13 

20 

Apr. 3 

10 

17

0 

.78 

0 

0 

.1

Hay 8 

22 

June 5

0 

0 

0

t Estimated.

Santa Ana River at Chapman Bridge, near Orange, Calif.

Dec. 12 

26 

31 

Jan. 5

1.6 

2.7 

6.4 

1.1

Jan. 30 

Feb. 6 

13 

Mar. 6

0 

0 

0 

0

liar. 13

20 

Apr. 3 

10

0 

t-2

0 

0

Apr. 17 

May 8 

22 

June 5

0 

0 

0 

0

t Estimated.

Santa Ana River at Santa Ana Boulevard, near Orange, Calif. 

Dec. 30, 31.0 second-feet

Lone Pine Creek near Keenbrook, Calif.

Sept. 26 

Nov. 6

3.6 || Jan. 15 

4.8 || Feb. 16

4.8 || Mar. 31

3.6 || May 5

3.7 || June 25 

2.7 || Aug. 27

2.2 

2.7

Meeks & Daley Canal at Colton, Calif. 

Aug. 21, 18.8 second-feet

Meeks & Daley Canal at heading, near Corona, Calif. 

Aug. 21, 18.8 second-feet and 18.0 second-feet

Day Creek diversion near Etlwanda, Calif.

Oct. 13 

Apr. 7 

May 1 

19

5.4 

4.7 

4.4 

3.5

June 3 

16 

29 

July 13

3.6 

3.4 

3.0 

2.9

July 27 

Aug. 10 

24 

Sept. 14

3.3 

3.4

2.0 

2.0

Santa Ynez River at Solvang, Calif.

Oct. 4

16

Hov. 5

19

Dec. 9

24

17.6

17.8

23.0

22.9

29 5

51

Jan. 28

Feb. 16

17

Mar. 10

24

Apr. 8

119

70

64

53

93

76

Apr. 30

May 14

29

June 12

26

July 17

118

65

36.4

20.9

13.4

8.6

Aug. 1

13

Sept. 3

15

30

7.6

8.4

7.1

6.8

8.7

Santa Ynez River near Buellton, Calif.

Oct. 4

16

Nov. 5

19

Dec. 9

24

14.0

14.6

24.3

20.6

32.4

46.8

Jan. 28

Feb. 16

17

Mar. 10

24

Apr. 8

131

72

72

57

96

77

Apr. 30

May 14

29

June 12

26

July 16

120

64

32.0

17.6

6.9

1.3

Aug. 1

12

Sept. 4

15

30

.

0.45

.78

1.2

1.4

3.4

Santa Ynez River at Donevan' a near Santa Rosa, Calif.

Jan. 28

Feb. 4

16

17

Mar. 9

161

103

80

80

67

liar. 26

Apr. 1

9

30

May 13

103

78

86

137

71

May 27

June 11

25

July 16

30

40.0

18.6

6.0

1.5

.70

Aug. 12

Sept. 4

15

30

tO. 05

.74

.53

.60

t Estimated.
382 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In the Pacific slope basins In California during 

water year October 1941 to September 1942 Continued

STREAMS SOOTH OP SAN FRANCISCO BAY Continued

Santa Ynez River (site E) at Ford's Crossing, near Rlnconada School, Calif.

Date

June 11 

25

(se^f-f?)! .

19.4 | July 16 

9.3 || 30

Discharge 

(sec. -ft.)

0.92 

.38

Date

Aug. 12 

Sept. 4

Discharge 

(sec. -ft. )

0.37 

0

Date

Sept. 15 

30

Discharge 

(sec. -ft.)

0 

.60

Santa Ynez River (site D) 5.2 miles upstream from Salslpuedes Creek, near Lompoc, Calif.

June 11 

25

22.2 || July 16 

11.7 || 30

3.8 || Aug. 12 

2.2 || Sept. 4

2.2 

1.9

Santa Ynez River (site C) 4 miles upstream 

from mouth of Salsitmedes Creek, near Lompoc, Calif.

June 11 

25

22.8 || July 16 

11.9 || 30

2.9 || Aug. 12 

1.9 || Sept. 4

Sept. 15 

30

1.6 

2.1

2.2 || Sept. 15 

2.0 || 30

1.5 

2.0

Santa Ynez River (site A) lj miles upstream 

from mouth of Salslpuedes Creek, near Lompoc, Calif.

June 10

24

25.8 || July 15 

13.1 || 29

3.7 || Aug. 11 

2.0 || Sept. 5

2.2 

2.4

Sept.16 

29

2.1 

2.5

Santa Ynez River above mouth of Salslpuedes Creek, near Lompoc, Calif,

May 27 

June 11 

25

45.3 

23.5 

13.2

July 16 

30 

Aug. 12

4.0 

2.0 

2.0

Sept. 4 

16 

29

2.1 

1.8 

2.2

Santa -Ynez River (site B) between Robinson 

Bridge and Salsipuedes Creek, near Lompoc r Calif.

June 10 

24

28.8

15.3

July 15 

29

6.8 || Aug. 11 

3.8 || Sept. 5

4.0 || Sept.16 

4,2 || 29

3.7 

4.4

Santa Ynez River between Rucker's Crossing and Robinson Bridge, at Lompoc, Calif.

June 11 

24

29.1 

15.8

July 15 

29

5.1 || Aug. 11 

1.9 || Sept. 5

2.5 || Sept.16 

3.5 || 29

3.0 

3.3

Santa Ynez River at Rucker's Crossing, near Lompoc, Calif.

June 10 

11 

24

27.8 

27.6 

17.3

July 15 

29 

Aug. 11

5.1 

1.7 

2.4

Sept. 5 

16 

29

2.1 

2.4 

3.3

Santa Ynez River at H Street Bridge, near Lompoc, Calif.

Oct. 9 

Nov. 13 

Dec. 19 

Feb. 3

28.6 

34.2 

84 

153

Mar. 9 

June 10 

24 

July 15

93 

29.7 

17.6 

6.1

July 29 

Aug. 11 

Sept. 5 

16

2.2 

2.1 

2.2 

2.1

Sept. 29 2.8

Santa Ynez River at Barrier, near Surf, Calif.

Oct. 9 

Nov. 13 

Dec. 19 

Feb. 3 

17

30.1 

41.3 

91 

123

107

Mar. 9 

26 

Apr. 1 

9 

30

89 

136 

111 

119 

157

May 13

27 

June 10 

24

July. 15

101 

56 

35.7 

17.8 

8.6

July 29 

Aug. 11 

Sept. 5 

16 

29

4.0 

4.2 

3.6 

5.4 

5.1

Hot Spring at Santa Ynez River, near Santa Barbara, Calif.

Oct. 5 

Nov. 6 

Dec. 22 

Jan. 20 

Feb. 16

0.36 

.50 

.49 

.57 

.59

Mar. 9 

Apr. 8 

30 

May 29 

June 12

0.59 

.58 

.80 

.50 

.29

June 26 

July 17 

Aug. 1 

13 

Sept. 3

0.31 

.25 

.32 

.29 

.30

Sept. 15 

30

0.26 

.30

Santa Cota Creek at Santa Ynez River, near Santa Ynez, Calif.

Oct. 5 

Nov. 6 

Dec. 22 

Jan. 20 

Feb. 16

3.4

5.1 

5.9 

5.5 

5.8

Mar. 10 

Apr. 8 

30 

May 29 

June 12

5.6 

5.8 

5.2 

1.9 

2.1

June 26 

July 17 

Aug. 1 

13 

Sept. 3

2.7 

2.6 

2.6 

1.0 

2.9

Sept. 15 

30

1.5 

3.6

Alamo Pintado Creek 1.1 miles above Santa Ynez River, near Solvang, Calif.

Oct. 5 

Nov. 6 

Dec. 22 

Jan. 20 

Feb. 16

1.3 

1.6 

2.4 

2.4 

2.1

Mar. 10 

Apr. 8 

30 

May 29 

June 12

2.2 

2.0 

2.7 

1.7

1.6

June 26 

July 17 

Aug. 1 

13 

Sept. 3

1.5 

1.1 

.81 

1.4 

1.6

Sept. 15 

30

1.9 

1.3

Allsal Creek at Santa Ynez River, near Solvang, Calif.

Oct. 5 

Nov. 5 

Dec. 22 

Jan. 20 

Feb. 17

0.03 

.04 

.03 

3.3 

2.6

Mar. 10 

Apr. 8 

30 

May 29 

June 12

2.2 

3.7 

6.5 

1.6 

.69

June 26 

July 17 

Aug. 1 

13 

Sept. 3

0.37 

.26 

.18 

.21 

.17

Sept. 15 

30

0.14 

.14
MISCELLANEOUS DISCHARGE MEASUREMENTS 383

ellaneous discharge measurements In the Pacific slope basins In California during 

water year October 1941 to September 1942 Continued

STREAMS SOUTH OP SAN FRANCISCO BAY--Continued 

Nojoqul Creek at Santa Ynez River, near Buellton, Calif.

Date

Oct. 5 

Nov. 5 

Dec. 22

Discharge 

(sec. -ft.)

0.07 

.50 

.54

Date

Jan. 23 

Feb. 16 

Mar. 10

Discharge 

(sec. -ft. )

4.6 

2.2 

2.0

Date

Apr. 8 

30 

May 29

Discharge 

(sec. -ft.)

3.3 

4.8

.80

Date

June 12 

26 

July 16

Discharge 

(sec. -ft.)

0.57 

.05 

0

Santa Rosa Creek above Santa Ynez River, near Buellton, Calif.

Dec. 19 0 || Jan. 22 t3.0 || May 7 t'0.1 ||

t Estimated. 

Salslpuedes Creek 0.1 mile above Santa Ynez River, near Lompoc, Calif.

May 27

June 11 

25

5.6 

4.2 

3.5

July 16 

30 

Aug. 12

2.5 

2.2

1.9

Sept. 4 

16 

29

2.0 

1.5 

1.6

Cuyama River below Cottonwood Creek, near Cuyama, Calif.

Jan, 20 

28

12.8 || Apr. 28 

13.5 || May 6

13.0 

7.8

May 20 

Aug. 10

6.2 

1.9

Sept. 9 0.86

Cuyama River below Huasna River, near Santa Maria, Calif.

May 12 34.3 || June 9 16.2 || II

Alamo Creek at Cuyama River, near Santa Maria, Calif.

Oct. 2 

20 

Nov. 18 

Jan. 7

3.4 

3.2 

2.9

4.1

Feb. 3 

Mar. 2 

23

Apr. 24

5.0 

7.6 

8.9 

9.6

May 12 

June 9 

23 

July 14

5.9 

4.4 

3.9 

3.1

July 28 

Aug. 10 

Sept. 10 

23

3.0 

2.9 

2.7 

2.7

Slsquoc River above Labrea Creek, near Gary, Calif.

Apr. 1 30.6 || June 9 3-4 || ||

Labrea Creek near mouth, near Gary, Calif. 

Apr. 1, 4.5 second-feet

Tepuaquet Creek near Gary, Calif. 

Sept. 10, 0.5 second-feet (estimated)

SALIHAS RIVER BASIN 

Salinas River at point 4 miles upstream from Atascadero, Calif.

June 2 ±4.40 July 24 

50 ___.2 || Aug. 31

Sept.25 144

I Furnished by Corps of Kngineers, U. S. Army.

Salinas River at bridge near Ataacadero, Calif.

June 2

July 1

24

111.7

1.2

1.7

Aug. 10

22

23

1.7

±74

±121

Aug. 24

25

26

±135

±71

±18.4

Aug. 31

Sept. 26

3.8

140

± Furnished by Corps of Engineers, U. S. Army.

Salinas River at Templeton, Calif.

June 1

July 1

22

$25.3

4.0

.4

Aug. 10

24

25

0.2

±73

191

Aug. 26

31

Sept. 23

$16.5

1.8

69

± Furnished by Corpa of Engineers, U. S. Army.

Sallnaa River three-quartena of a mile above bridge at Paso Roblea, Calif. 

Aug. 25, 59 second-feet

Salinas River at San Mlguel, Calif.

July 1 

22

0.5 

0

Aug. 10 

31

0 

0

Sept. 23 0.04 II

Salinas River above Naelmlento River near San Mlguel, Calif.

June 1 ] J40.2 fl Aug. 11 Aug. 31 Sept.22

± Furnished by Corps of Engineers, U. S. Array.

Salinas River below Naelmlento River near San Mlguel, Calif,

July 1 14.0 July 22 Aug. 11

Salinas River at highway bridge at Bradley, Calif.

June 1 

July 3

J157 

16.9 »

July 22 

Aug. 11

5.1 

4.1 a Aug. 31 Sept. 22

2.9 II 

3.9 ||

1 Furnished by Corps of Engineers, U. S. Army.

Salinas River at highway bridge at San Ardo, Calif.

June 

July

1 

3

±146 

9.4 I

july 21 

Aug. 11

0 || Sept. 4 

0 || 22

0 || 

0 ||

t Furnished by Corpa of Engineers, U. S. Army.
384 MISCELLANEOUS DISCHARGE MEASUREMENTS

Miscellaneous discharge measurements In the Pacific slope basins In California during 

water year October 1941 to September 1942 Continued

SAUNAS RIVER BASIN Continued 

Sallnas River at bridge near San Lucas, Calif.

Date

July 3 

21

Discharge 

(sec. -ft.)

11.0 

.6

Date

Aug. 11 

Sept. 4

Discharge 

(sec. -ft.)

0.6 

.9

Date

Sept. 22

Discharge 

(sec. -ft.)

0.9

Date Discharge 

(sec. -ft.)

Sallnas River at highway bridge at King City, Calif.

July 3 

21

0 

0

Aug. 11 

Sept. 4 °05 II

Sallnas River at highway br

July

July

3 

21

19.7 

15.6

221 13.1 

3.8

Aug. 11 

Sept. 3

7.7 II 

5.2 ||

Estrella Creek at mouth 

No flow July 1, 22, Au

Naclmlento River at mouth

Aug. 11 

31

2.7 || 

1.7 ||

Sept. 22 0.05 ||

Idge near Soledad, Calif.

Sept. 21 " II

near San Mlguel, Calif, 

g. 10, Sept. 8 and 23

near San Mlguel, Calif.

Sept. 22 1.9 || |-

San Antonio River at mouth near Bradley, Calif. 

July 3, 1.5 second-feet; no flow July 22, Aug. 11 and Sept. 8, 22

COYOTE CREEK BASIN

Coyote Creek at Santa Clara Valley Water Conservation District's

gage at Bohnetts Crossing, near Coyote, -Calif.

Apr. 22, 90 second-feet

SAN JOAQUXN RIVER MAIN STEM

San Joaquln River at former gaging station below Kerckhoff powerhouse, Calif. 

Sept. 18, 1,290 second-feet (furnished by Southern California Edison Co.)

MOKELUMNE RIVER BASIN

Sutter Creek at former gaging station near Sutter Creek, Calif. 

Jan. 9, 49.0 second-feet

North Fork of Cosumnes River at former gaging station near El Dorado, Calif. 

Jan. 23, 219 second-feet

SACHAKENTO RIVER BASIN 

Sacramento River at former gaging station at Antler, Calif.

Oct. 9 

Nov. 18 

Dec. 6

265 

399 

1,080

Dec. 30 

Jan. 19 

Feb. 12

1,800 

1,140 

3,130

Mar. 4

Apr. 11 

May 14

1,120 

2,450 

1,550

May 27 

July 27

3,320 

346

Sacramento River at former gaging station above Keswlck Dam, at Keswlck, Calif. 

July 30, 4,340 second-feet

Stony Creek at former gaging station above Stony Gorge Reservoir, Calif. 

Nov. 27, 37.3 second-feet

RUSSIAN RIVER BASIN

Santa Rosa Creek at former j^glng station at Santa Rosa, Calif. 

Oct. 6, 0.1 second-foot (estimated)

Mark West Creek at former gaging station near Windsor, Calif. 

Oct. 10, 0.7 second-foot

KLAMATH RIVER BASIN

Bluff Creek half a mile above mouth. In sec.- 30, T. 10 N., R. 5 E., Calif. 

July 13, 119 second-feet

Wllllamson River at former gaging station above Spring Creek, near Klamath Agency, Oreg. 

June 24, 19.9 second-feet

Sprague River at former gaging station near Beatty, Oreg. 

June 23, 256 second-feet

Sycan River at former j^glng station near Beatty, Oreg. 

June 23, 31.5 second-feet
INDEX

Page 

369

4

1

10-11 

167

167

162

383

382

124

124

334

382

36

36

322

323

*A" Canal at Klamath Palls, Oreg.......

Accuracy of field data and computed

results..........................

Acre-foot, definition of...............

Agencies other than Geological Survey,

records collected by.............

Alameda Creek near Nlles, Oalif........

Alameda Creek Basin, Calif., gagingstatlon record In................

Alamltos Creek near Edenvale, Calif....

Alamo Creek, Calif., discharge measurements of.........................

Alamo Pintado Creek, Calif., discharge

measurements of..................

Alascadero Creek near Qoleta, Calif....

Alascadero Creek Basin, Calif., gaglngstatlon record In................

Alder Creek near Whitehall, Calif......

Alisal Creek, Calif., discharge measurements of......................

Aliso Creek at El Toro, Calif..........

Allso Creek Basin, Calif., gaglngstation record in................

American River at Fair Oaks, Calif.....

at Sacramento, Calif.................

Middle Pork of, naar Auburn,

Calif.......................324, pl.2,A

North Pork of, at North Pork Dam, "~

Calif............................ 320

at Rattlesnake Bridge, Calif....... 321

South Fork of, near Camlno, Calif.... 326

near Kyburz, Calif................. 325

Silver Fork of, near Kyburz, Calif. 331 

American River Basin, Calif., gaglngstatlon records In..............320-338

American River flume near Camlno,

Calif............................

Antelope Creek near Red Bluff, Calif... 

Antelope Creek Basin, Calif., gagingatation record in................

Arlington, Calif., Santa Ana River near 

Arrowhead Springs, Oalif., Strawberry

Creek near.......................

Waterman Canyon Creek near...........

Arroyo Grande at Arroyo Grande, Calif.. 

Arroyo Grande Basin, Calif., gaglngstatlon record In................

Arroyo Seco (Los Angeles River Basin)

near Pasadena, Calif.............

Arroyo Seco (Salinas River Basin) near

Soledad, Calif...................

Arroyo Seco (Santa Nargarita River

Basin), discharge measurement of. 

Artesla, Calif., Coyote Creek near.....

Ashland, Oreg., Keene Creek Canal near. 

Auburn, Calif., Bear River near........

Middle Pork of American River

near........................324, pi.2,A

Avery, Calif., Middle Fork of atanls- ~

laus River near.................. 229

North Pork of Stanislaus River near.. 233 

Azusa, Calif., Rogers Creek near....... 83

San Gabriel River near............... 79

Baird, Calif., McCloud River at........ 273

Bakersfield, Calif., Kern River near... 170 

Ballona Creek near Culver City, Calif.. 110 

Ballona Creek Basin, Calif., gagingstation record in................ 110

Battle Creek near Cottonwood, Calif.... 276

Battle Creek Basin, Calif., gagingstation record in................ 276

Bear Creek near Vermilion Valley, Calif. 194 

Bear River (Feather River Basin) near

Auburn, Calif.................... 317

near Wheatland, Calif................ 318

Bear River (Mokelumne River Basin) at

Pardoe Camp, Calif............... 250

Bear River Canal (Feather River Basin)

near Col fax, Calif............... 319

Bldwell Bar, Calif., Middle Fork of

Feather River at................. 300

338

277

277

56

141

141

103

151

380

90

374

317

Big Bar, Calif., North Fork of Feather

River at......................... 286

Big Bend, Calif., Pit River at......... 268

Big Creek, Calif., Florence Lake near.. 190 

Huntingdon Lake near................. 196

San Joaquin River above.............. 186

Shaver Lake near..................... 199

Big Creek below Huntington Lake, Calif. 197 

Big Trees, Calif., San Lorenzo River at 157 

Bluff Creek, Calif., discharge measurement of.......................... 384

Bonsall, Calif., San Luls Rey River

near............................. 26

Borel Canal at Tilley Creek, Calif..... 172

Boulder Creek near Julian, Calif....... 22

Bowman Lake, Calif., Canyon Creek below 314 

Bowman Lake near Graniteville, Calif... 313 

Boranan-Spauldlng Canal at Intake, Call£ 315 

Branclforte Creek at Santa Cruz, Calif. 158 

Brea Creek at Fullerton, Calif......... 91

Bridgeville, Calif., Van Duzen River at 359 

Buchanan dam site, Calif., Chowchllla

River at......................... 205

Bucks Creek Reservoir near Bucks Ranch,

Calif............................ 293

Buellton, Calif., La Zaca Creek at..... 134

Butt Creek above Almanor-Butt Creek

tunnel, near Prattville, Calif... 289 

below Almanor-Butt Creek tunnel, near

Prattville, Calif................ 290

Butte City, Calif., Sacramento River at 261 

Butte Creek near Chlco, Calif.......... 283

Butte Creek Basin, Calif., gagingstatlon record in................ 283

Cache Creek at Yolo, Calif............. 341

North Fork of, near Lower Lake,

Calif.......................342, pl.l.C

Cajon Creek near Keenbrook, Calif...... 5

Calabasas, Calif., Hallbu Creek near... 112 

Calaveras River at Jenny Llnd, Calif... 240 

Calaveras River Basin, Oalif., gagingstatlon records in..............240-241

Calpella, Calif., East Fork of Russian

River near....................... 347

Camlno, Calif., American River flume

near............................. 338

South Fork of American River near.... 326

Camp Bonita, Calif., East Fork of San

Gabriel River near............... 78

Camp Rlncon, Calif., West Fork of San

Gabriel River at................. 82

Campbell Creek at Saratoga, Calif...... 164

Campo Creek near Campo, Calif.......... 18

Canby, Calif., Pit River near.....266, pl.2,B

Canyon Creek below Bowman Lake, Calif.. 317 

Carplnterla Creek near Carpinteria,

Calif............................ 123

Carplnterla Creek Basin, Calif.,

gaging-station record in......... 123

Cascade Canal near Fish Lake, Oreg..... 368

Cherry Creek near Hatch Hetchy, Calif.. 220 

Chico, Calif., Butte Creek near........ 283

Chico Creek near Chlco, Calif.......... 281

Chico Creek Basin, Calif., gagingstation record in................ 281

Chiloquln, Oreg., Sprague River near... 367 

Willlamson River near................ 360

Chlttenden, Calif., Pajaro River near.. 152 

Chowchllla River at Buchanan dam site,

Calif............................ 205

Chowchilla River Basin, Calif., gagingstation record in................ 305

City Creek near Highland, Calif........ 57-58

City Creek Water Co.'s canal near

Highland, Calif.................. 59

Claremont, Calif., San Antonio Creek

near............................. 73-74

Southern California Edison Co.'s

conduit near..................... 75

Clear Creek near Igo, Calif............ 274

385
386 INDEX

Page 

Clear Creek Basin, Calif., gaglngstatlon record In................ 274

Clear Lake at Lakeport, Calif.......... 340

Clements, Calif., Mokelumne River near. 246 

Cliff Camp, Calif., North Pork of Kings

River near....................... 184

Clio, Calif., Middle Fork of Feather

River near....................... 298

Cloverdale, Calif., Dry Creek near..... 351

Colby Ranch, Calif., Tujunga Creek near 98 

Cold Creek near Mokelumne Peak, Calif.. 249 

Colfax, Calif., Bear River Canal near.. 319 

Colton, Calif., Lytle Creek (west channel) at.......................... 64

Weeks & Daley Canal near............. 66

Warm Creek near...................... 53-54

Colusa, Calif., Sacramento River at.... 262

Colusa and Yolo Basins, Calif., gaglngstatlon records In..............539-344

Computations, accuracy of results of... 4 

Concow Creek near Yankee Hill, calif... 296 

Conn Creek near St. Helena, Calif...... 346

Control, definition of................. 1

Cooperation, record of................. 11

Copco, Calif., Fall Creek at........... 373

Klamath River near................... 364

Corona, Calif., Santa Ana Rlv.r near... 41-42

Temescal Creek near. 

Cosgrove Creek near Valley Springs,

Calif............................

Cosumnes River at Michigan Bar, Calif.. 

North Fork of, discharge measurement

of.

72

241

254

384

276

275

Cottonwood, Calif., Battle Creek near.. 

Cottonwood Creek near................

Cottonwood Creek (Goose Lake Basin)

near lakevlew, Oreg.............. 257

Cottonwood Creek (Tla Juana River Basin) 

above Tecate Creek, near Dulzura, 

Calif............................ 14

at Morena Dam, Calif................. 13

discharge measurements of............ 380

near Dulzura, Calif.................. 13

Cottonwood Creek (Sacramento River

Basin) near Cottonwood, Calif.... 275

Cottonwood Creek Basin, Calif., gaglngstatlon record in................ 275

Coyote Creek, (tributary to San Gabriel

River) near Artesla, Calif....... 90

Coyote Creek (tributary to San Francisco Bay) near Edenvale, Calif..... 166

discharge measurement of............. 384

near Madrono, Calif.................. 165

Coyote Creek Basin, Calif., gaglngstatlon records in..............165-166

Coyote Creek (tributary to Ventura

River) near Ventura, Calif....... 122

Craftonvllle, Calif., Mill Creek power

canal 1 near..................... 50

Mill Creek power canals 2 and 3 near. 49 

Crane Valley Reservoir, Calif., Pacific 

Gas & Klectrlc Co. conduit No. 3

202 

Willow Creek below................... 201

Crescent City, Calif., Smith River near 379 

Crescent Mills, Calif., Indian Creek

near............................. 291

Cucamonga Creek near Upland, Calif..... 68

Culver City, Calif., Ballona Creek near 110 

Cupertlno, Calif., Stevens Creek near.. 159 

Cuyama River, Calif., discharge measurements of...................... 383

near Santa Maria, Calif.............. 137

Dalton Creek near Glendora, Calif...... 87

Data, accuracy of...................... 4

explanation of....................... 1-3

Day Creek near Etlwanda, Calif......... 67

Day Creek diversion, Calif., discharge

measurements of.................. 381

Deer Creek (tributary to Yuba River)

near Smartvllle, Calif........... 316

Deer Creek (tributary to Sacramento

River) near Vlna, Calif.......... 280

Deer Creek Basin, Calif., gaglngstatlon record in................ 280

Devil Canyon Creek near San Bernardlno,

Calif............................ 60

Don Pertro Reservoir near La Grange,

Calif............................ 216

Page 

Downey, Calif., Los Angeles River near. 95

Rio Hondo near....................... 108

Drew Creek near Lakeview, Oreg........255-256

Dry Creek near Cloverdale, Calif....... 351

near Healdsburg, Calif............... 352

Duarte, Calif., Fish Creek near....84, pl.l.A

Dulzura, Calif., Cottonwood Creek near. 13,1?

Dulzura conduit near................. 17

Tla Juana River near................. 15

Dulzura conduit near Dulzura, Calif.... 17

Dunnevllle, Calif., Pacheco Creek near. 153

East Highlands, Calif., Plunge Creek

near............................. 51

Eaton Creek near Pasadena, Calif....... 106

Echo Lake flume near Vade, Calif....... 327

Sdenvale, Calif., Alandtos Creek near.. 162 

Coyote Creek near.................... 166

Eel River at Hullvllle, Calif.......... 354

at Scotia, Calif..................... 356

near Potter Valley, Calif............ 356

South Pork of, near Mlrando, Calif... 358

Eel River Basin, Calif., gaging-statlon

records in......................353-359

El Capltan Dam, Calif., San Diego River

at.

El Dorado Canal near Kyturz, Calif.....

El Toro, Calif., Allso Creek at........

Eleanor Creek near Hetch Hetchy, Calif. 

Elslnore, Calif., San Jaclnto River

near.............................

Elslnore Lake at Elslnore, Calif.......

Enterprise, Calif., Palermo Canal at...

South Fork of Feather River at.......

Estrella Creek, Calif., discharge measurement of.......................

Etlwanda, Calif., Day Creek near.......

Exchequer, Calif., Lake McClure at.....

Merced River at......................

302

301

384

67

209

210

Fair Oaks, Calif., American River at... 322

Fall Brook, Calif., Santa Margarlta

River near.......................

Fall Creek at Copco, Calif.............

Falls Creek near Hetch Hetchy, Calif... 

Fall River Mills, Calif., Pit River at. 

B'eather River at Nloolaus, Calif.......

Middle Pork of, at Bldwell Bar, Calif. 

telow Sloat, Calif.................

near Clio, Calif...................

near Orovllle, Calif.................

North Fork of, at Big Bar, Calif.....

near Prattvllle, Calif.............

South Fork of, at Enterprise, Calif.. 

West Branch of, near Yankee Hill,

Calif............................

Feather River Basin, Calif., gagingstetion records in..............284-319

Flllmore, Calif., Flllmore Irrigation 

Co.'s canal near...............

Sespe Creek near...................

Flllmore Irrigation Co.'s canal near 

Flllmore, Calif................

Fine Gold Creek near Frlant, Calif...

Fish Creek near Duarte, Calif......84, pl.l,A

Fish Lake, Oreg., Cascade Canal near... ~" 

Floods, special reports on.............

Florence Lake, Calif., South Fork of

San Joaquln River near...........

Florence Lake near Big Creek, Calif....

Fontana, Calif., Lytle Creek near......

Fontana pipe line. See Lytle Creek

near Fontana.

Fort Jones, Calif., Scott River near... 

Poster, Calif., San Vlcente Creek near. 

Fourmlle Lake Reservoir, Oreg., contents of.........................

Fresno River near Knowles, Calif.......

Presno River Basin, Calif., gagingstatlon record in................

Frlant, Calif., Fine Gold Creek near... 

San Joaquln River below..............

Pullerton, Calif., Brea Creek at.......

Pullerton Creek at Fullerton, Calif....

30

373

219

267

288

300

299

298

287

286

285

301

295

117

116

117 

20S

10

191

190

61-62

375

23

366

204

204 

203 

1B7

91

92

Gary, Calif., Slsquoc River near.......

Glendora, Calif., Dalton Creek near..,.

Little Dalton Creek near. ............

Goleta, Calif., Alascadero Creek near..

San Jose Creek near. .................

140

87

124

125
INDEX

Page 

Goodyears Bar, Calif., North Pork of

Yuba River below................. 311

Goose Lake Basin, dreg., gaglng-station

records In......................255-257

Granitevllle, Calif., Bowman take near. 313 

Greenspot pipe line. See Southern

California EdlsorTTTo.'s canal and

Greenspot olpe line. 

Grizzly Creek near Storrle, Calif...... 294

Guadalupe, Calif., Guadalupe Creek at.. 160 

Sarfta Maria River at................. 138

Guadalupe Creek at Guadalupe, Calif.,.. 160 

at San Jose, Calif................... 161

Guadalupe Creek Basin, Calif., gaglngstatlon records In..............160-164

Guenoc, Calif., Putah Creek near....... 343

Guernevllle, Calif., Russian River at.. 350

Halnes Creek near Tujunga, Calif.......

Hamilton City, Calif., Stony Creek near 

Hansen Dam, Calif., Tujunga Creek below 

Harris, Calif., San Antonio Creek at... 

Hat Creek near Hat Creek, Calif........

Healdsburg, Calif., Dry Creek near.....

Russian River near...................

Hetch Hetchy, Calif., Cherry Creek near

Eleanor Creek near...................

Palls Greek near.....................

Hetch Hetchy Reservoir at............

Lake Eleanor near....................

Tuolunme River near..................

Hetch Hetchy Reservoir at Hetch Hetchy, 

Calif............................

Highland, Calif., City Creek near......

City Creek Water Co.'s canal near....

Hoopa, Calif., Trinity River near......

Hopland, Calif., Russian River near....

Hopper Creek near Plru, Calif..........

Hot Spring, Calif., discharge measurements of.........................

Huasna River near Santa Maria, Calif... 

Hullvllle, Calif., Eel River at........

Lake Plllsbury at....................

Huntlngton Lake, Calif., Big Creek

below............................

Huntlngton Lake near Big Creek, Calif.. 

Huntlngton-Shaver conduit at outlet,

Calif............................

Hyatt Prairie Reservoir, Oreg., contents of.........................

Ice House, Calif., South Pork of Silver 

Creek near.......................

Igo, Calif., Clear Creek near..........

Indian Creek near Crescent Mills,

Calif............................

Isabella, Calif., South Pork of Kern

River at.........................

Jacksonville, Calif., Woods Creek near 

Jamul Creek near Jamul, Calif.........

Jenny Llnd, Calif., Calaveras Rive: 

Jones Bar, Calif., South Pork of Yuba 

River at....................

Julian, Calif., Boulder Creek near

t.

102

282

100

136

271

352

349

220

222

219

214

221

215

214

57-58

59

278

348

115

382

139

354

353

197

196

337

274

291

174

225

19

240

312

22

Kaweah River near Three Rivers, Calif., 180 

North Pork of, at Kaweah, Calif...... 181

Keddle, Calif., Spanish Creek at....... 292

Keenbrook, Calif., Cajon Creek near.... 65

Keene Creek Canal near Ashland, Oreg.., 374 

Kennedy Meadows, Calif., Middle Fork of

Stanislaus River at.............. 228

Kennett, Calif., Sacramento River at... 258 

Keno, Oreg., Klamath River at.......... 363

Keno Canal at Klamath Falls, Oreg...... 370

Kerckhoff powerhouse, Calif., San

Joaquln River below..............pi.1,B

Kern River near Bakersfleld, Calif,.... 170

near Kernvllle, Calif...............168-169

South Pork of, at Isabella, Calif.... 174

near Onyx, Calif................... 173

Kern River Basin, Calif., gaglngstatlon records In..............168-174

Kern River No. 3 Canal near Kernvllle,

Calif............................ 171

Kernvllle, Calif., Kern River near....168-169

Kern River No. 3 Canal near.......... 171

Keswlck, Calif., Sacramento River at... 259 

King City, Calif., San Lorenzo Creek

near............................. 150

Kings River above North Pork, Calif....

at Pledra, Calif .....................

North Pork of, below Rancherla,

Creek, Calif .....................

near Cliff f amp, Calif .............

Klrkwood, Calif., seepage from Silver

Lake near. .......................

Sliver Lake Outlet near. .............

Twin Lakes Outlet near. ..............

Klttridge, Calif., Merced River at.....

Klamath Palls, Oreg., "A" Canal at.....

Keno Canal at. .......................

Link River at. .......................

UDcer Klamath Lake near. .............

Klamath River at Keno, Oreg. ...........

at Somesbar, Calif ...................

below Palls Cre«k, near Copco,

Page

182

183

185

184

330 

329 

332 

208 

369 

....... 370

....... 362

....... 361

....... 363

....... 365

Calif. 364

diversion from, to Lost River

Olene, Oreg...................... 372

Klamath River Basin, Calif.-Oreg., discharge measurements In........... 384

gaglng-statlon records In...........360-378

_smaller reservoirs In................ 366

Knights Perry, Calif., Oakdale Canal

near............................. 239

South San Joaquln Canal near......... 238

Knights Landing, Calif., Knights LandIng Ridge Cut at................. 339

.ento River 

Knights Landing Ridge Cut at Knights

Landing, Calif,..................

Knowles, Calif., Fresno River near.....

Kyburz, Calif., El Dorado Canal near...

Silver Pork of South Pork of American

River near.......................

South Pork of American River near....

La Grange, Calif., Don D edro Reservoir 

near.............................

Modesto Canal near...................

Tuolunme River near..................

Turlock Canal near...................

La Zaca Creek at Buellton, Calif.......

Labrea Creek, Calif., discharge measurement of.......................

Lake Almanor near Prattvllle, Calif....

Lake Eleanor near Hetch Hetchy, Calif.. 

Lake Hodges, Calif., San Dlegulto River

at.

Lake McClure at Exchequer, Calif.......

Lake Plllsbury at Hullvllle, Calif.....

Lakeport, Calif., Clear Lake at........

Lakevlew, Oreg., Cottonwood Creek near. 

Drew Creek near.....................255

Lancha Plana, Calif., Mokelumne River

at.

Lewlston, Calif., Trinity River at..... 

Likely, Calif., South Fork of Pit River

Link River at Klamath Palls, Oreg......

Little Dalton Creek near Glendora,

Calif............................

Little Santa Anita Creek near Sierra

Madre, Calif.....................

Little Tujunga Creek near San Fernando, 

Calif.............................

Ilvlnest'on, Calif., Merced River near..

Lompoc, Calif., Salslpuedes Creek near. 

Santa Ynez River near............... 130

Lone Pine Creek, Calif., discharge

measurements of..................

Long Barn, Calif., South Fork of Stanislaus River near................

Tuolumne Canal near..................

Long Beach, Calif., Los Angeles River

264

339

204

333

331

325

216

226

217

227

134

383

284

221

25 

209 

353 

340 

257 

-256

245

377

270

362

at.

Los Alamltos, Calif., San Gabriel River 

near.............................

Los Angeles River at Long Beach, Calif, 

at Los Angeles, Calif................

below Sepulveda Dam, Calif...........

near Downey, Calif...................

Los Angeles River Basin, Calif.,

gaglng-statlon records In........93-

Los Gatos Creek (Guadalupe Creek Basin) 

at Los Gatos, Calif..............

Los Mollnos, Calif., Mill Creek near... 

Lost River diversion canal near Olene, 

Oreg.............................

Lower Lake, Calif., North Fork of Cache

Creek near..................342, pi.

101

211

135

,131

235

237

81

96

94

93

95

 109

163

278

371 

l.C
Page 

Lytle Creek, east channel of, at San

Bernardlno, Calif................ 63

near Fontana, Calif.................. 61-62

west channel of, at Colton, Calif.... 64

McCloud River at Balrd, Calif.......... 273

near McCloud, Calif.................. 272

Madrono, Calif., Coyote Creek near..... 165

Mallbu Creek near Calabasas, Calif..... 112

Mallbu Creek Basin, Calif., gagingstatlon record In................ 112

Mark West Creek, Calif., discharge

measurement of................... 384

Marysvllle, Calif., Yuba River at...... 307

Matlllja Creek at Matlllja, Calif...... 119

North Fork of, at Matlllja, Calif.... 121

Medley Lakes outlet near Vade, Calif... 328 

Meeks S: Daley Canal, Calif., discharge

measurements of.................. 381

near Colton, Calif................... 66

Melones powerhouse, Calif., Stanislaus

River below...................... 231

Melones Reservoir at Melones Dam, Calif. 230 

Mentone, Calif., Mill Creek near....... 48

Santa Ana River near................. 37-38

Southern California Edison Co.'s 

canal and Greenspot pipe line 

near............................. 46-47

Merced River at Exchequer, Calif....... 210

at Happy Isles Bridge, near Yosemite,

Calif............................ 206

at Klttrldge, Calif.................. 208

at Pohono Bridge, near Yosemite,

Calif............................ 207

near Llvlngston, Calif............... 211

Merced River BRSln, Calif., gaglngatatlon records in..............206-212

Mesa Irande, Calif., San Luls Rey River

near............................. 25

Santa Ysabel Creek near.............. 24

Michigan Bar, Calif., Cosumnes River at 254 

Middle Tuolumne River at Oakland Recreation Camp, Calif................ 224

Mill Creek (Sacramento River Basin)

near Los Mollnos, Calif.......... 278

Mill Creek Basin, Calif., gagingstatlon record in................ 278

Mill Creek (Santa Ana River Basin) near

Mentone, Calif.................... 48

Mill Creek power canal 1 near Craftonville, Calif..................... 50

Mill Creek power canals 2 and 3 near

Craftonvllle, Calif.............. 49

Milton, Calif., Middle Fork of Yuba

River at......................... 303

Milton-Bowman tunnel at outlet, Calif.. 308 

Miranda, Calif., South. Fork of Eel

River near....................... 358

Modesto Canal near La Grange, Calif.... 226

Mokelumne Hill, Calif., Mokelumne River

near............................. 244

Mokelunme Peak, Calif., Cold Creek near 249

Mokelumne River at Lancha Plana, Calif. 245

at Woodbrldge, Calif................. 247

Middle Fork of, at West Point, Calif. 251 

near Clements, Calif................. 246

near Mokelumne Hill, Calif........... 244

Korth Fork of, below Salt Springs

Dam, Calif....................... 243

South Fork of, near West Point,

Calif............................ 252

Mokelumne River Basin, Calif., discharge measurement in............ 384

gaglng-statlon records In...........242-254

Mono Creek near Vermilion Valley,

Calif............................ 195

Monrovia, Calif., Sawplt Creek near.... 85

Montebello, Calif., Rio Hondo near..... 107

Rio Hondo Slough near................ 109

Monteclto, Calif,, Santa Ynez River

near............................. 126

Morena Dam, Calif., Cottonwood Creek at 13 

Morgan Hill, Calif., TJvas Creek near... 154 

Murrleta Creek at Temecula, Calif...... 32

Naclmlento River, Calif., discharge

measurements of.................. 384

near San Mlguel, Calif............... 148

Napa River near St. Helena, Calif...... 345

Napa River Basin, Calif., gaglngstatlon records in..............345-347

Narrows Dam, Calif., Yuba River at.....

Nestor, Calif., Tla Juana River near...

Newman, Calif., Orestlmba Creek near... 

San Joaquln River near...............

Nlcolaus, Calif., Feather River at.....

Nlles, Calif., Alameda Creek near......

Nojoqul Creek, Calif., discharge measurements of......................

North Fork, Calif., Kings River above..

North Fork Dam, Calif., North Fork of

American River at................

North San Juan, Calif., Oregon Creek

nea

Page 

306 

16 

213 

188 

288 

167

383

182

320

309

Oakdale Canal near Knights Ferry,

Calif............................ 239

Oakland Recreation Camp, Calif., Middle

Tuolumne River at................ 224

South Fork of Tuolumne River near.... 223 

Oceanslde, Calif., San Luls Rey River

at. 27 

Olene, Oreg., diversion from Klamath

River to Lost River near......... 372

Lost River diversion canal near...... 371

O'Nelll ditch near Ysldora, Calif...... 33

Onyx, Calif., South Fork of Kern River

near............................. 173

Oregon Creek, Calif., Middle Fork of

Yuba River above................304-305

Oregon Creek near North San Juan,

Calif............................ 309

Orestlmba Creek near Newman, Calif..... 213

Orestlmba Creek Basin, Calif., gagingstation record in................ 213

Orovllle, Calif., Feather River near... 287 

Otay River at Savage Dam, Calif........ 20

Otay River Basin, Calif., gagingstatlon records in............... 19-20

Pacheco Creek near Dunnevllle, Calif... 153 

Pacific Gas k Electric Co. conduit near

Sprlngvllle, Calif............... 178

Pacific Gas & Electric Co. conduit

No. 3 near Crane Valley Reservoir, 

Calif............................ 203

Pacolma Creek near San Fernando, Calif. 97 

Pajaro River near Chlttenden, Calif.... 152

Pajaro River Basin, Calif., gaglngstatlon records In..............152-156

Palermo Canal at Enterprise, Calif..... 302

Pardoe Camp, Calif., Bear River at..... 250

Pasadena, Calif., Arroyo Seco near..... 103

Eaton Creek near..................... 106

Paskenta, Calif., Thomas Creek at...... 279

Paso Robles, Calif., Sallnas River at.. 146 

Philadelphia Canal near Stl-awberry,

Calif............................ 236

Plco, Calif., San Gabriel River at..... 80

Pledra, Calif., Kings River at......... 183

Plru, Calif., Hopper Creek near........ 115

Plru Creek near Plru, Calif............ 114

Pit River at Big Bend, Calif........... 268

at Fall River Mills, Calif........... 267

near Canby, Calif...............266, pl.2,B

near Ydalpom, Calif.................. 26?

South Fork of, near Likely, Calif.... 270

Pit River Basin, Calif., gaglng-station

records In......................266-273

Pitman Creek below Tamarack Creek,

Calif............................ 198

Placervllle, Calif., Silver Creek n'ear. 336 

Pleyto, Calif., San Antonio River at... 149 

Plunge Creek near East Highlands, Calif. 51 

Portervllle, Calif., Tule River near... 177 

Potter Valley, Calif., Eel River near.. 355 

Potter Valley powerhouse tallrace

near............................. 357

Potter Valley powerhouse tallrace near

Potter Valley, Calif............. 357

Pozo, Calif., Sallnas Reservoir near... 143 

Sallnas River near................... 142

Prado, Calif., Santa Ana River near.... 43,44

Prattvllle, Calif., Butt Creek above

Almanor-Butt Creek tunnel, near.. 289 

Butt Creek below Almanor-Butt Creek

tunnel, near..................... 290

Lake Almanor near.................... 284

North Fork of Feather River near..... 285

Publications on stream flow by Geological Survey......................4-8,10

by State agencies.................... 8-9
INDEX 389

Page 

Putah Creek near Guenoc, Calif......... 343

near Winters, Calif.................. 344

Rancheria Creek, Calif., North Fork of

Kings River below................ 186

Rattlesnake Bridge, Calif., North Fork

of American River at............. 321

Red Bluff, Calif., Antelope Creek near. 277 

Sacramento River near................ 260

Redlands, Calif., San Tlmoteo Creek

near............................. 52

Rio Hondo near Downey, Calif........... 108

near Montebello, Calif............... 107

Rio Hondo Slough near Montebello,

Calif............................ 109

Rlpon, Calif., Stanislaus River at..... 232

Rogers Creek near Azusa, Calif......... 83

Runoff In Inches, definition of........ 1

Russian River at Guerneville, Calif.... 350

East Fork of, near Calpella, Calif... 347 

near Healdsburg, Calif............... 349

near Hopland, Calif.................. 348

Russian River Basin, Calif., discharge

measurements In.................. 384

gaglng-statlon records In...........347-352

Sacramento, Calif., American River at.. 323

Sacramento River at Butte City, Calif.. 261

at Colusa, Calif..................... 262

at Kennett, Calif.................... 258

at Keswlck, Calif.................... 269

at Knights Landing, Calif............ 264

at Verona, Calif..................... 265

below Wllkins Slough, Calif.......... 263

discharge measurements of............ 384

near Red Bluff, Calif................ 260

Sacramento River Basin, Calif., discharge measurements In........... 384

gaglng-statlon records In...........258-344

St. Helena, Calif., Conn Creek near.... 346

Napa River near...................... 345

Sallnas Reservoir near Pozo, Calif..... 143

Sallnas River above Pllltas Creek, near

Santa Margarlta, Calif........... 144

at Paso Robles, Calif................ 146

discharge measurements of...........383-384

near Pozo, Calif..................... 142

near Santa Margarlta, Calif.......... 146

near Spreckels, Calif................ 147

Sallnas River Basin, Calif., discharge

measurements in.................383-384

Raging-station records In...........142-151

Salmon River at Somesbar, Calif........ 376

Salslpuedes Creek, Calif., discharge

measurements of.................. 383

near lompoc, Calif................... 135

Salt Springs Dam, Calif., North Fork of

Mokelumne River below............ 243

Salt Springs Dam, Calif., Tiger Creek

powerhouse conduit below......... 248

Salt Springs Reservoir near Tiest Point,

Calif............................ 242

San Antonio Creek (Santa Ana River

Basin) near Claremont, Calif..... 73-74

San Antonio Creek (tributary to Pacific

Ocean) at Harris, Calif.......... 136

San Antonio Creek Basin, Calif.,

gaging-statlon record in......... 136

San Antonio River at Pleyto, Calif..... 149

discharge measurement of............. 384

San Benlto River near Willow Creek

School, Cslif.................... 166

San Bernardino, Calif., Devil Canyon

Cre ek near....................... 60

Lytle Creek (east channel) at........ 63

Santa Ana River near................. 39

San Diego River at El Caoitan Dam,

Calif............................ 21

near Santee, Calif................... 21-28

San Diego River Basin, Calif., gagingstation records In............... 21-25

San Dlegulta River at Lake Hodges,

Calif............................ 25

discharge measurements of............ 380

San Dlegulta River Basin, Calif.,

giging-statIon records In........ 24-26

San Dlmas Creek near San Dlmas, Calif.. 86 

San Fernando, Calif., Little Tujumga

Creek near....................... 101

Pacolma Creek near................... 97

Page 

San Gabriel River at Picot Calif....... 80

East Fork of, near Camp Bonlta,

Calif............................ 78

near Azusa, Calif.................... 79

near Los Alamltos, Calif............. 31

West Fork of, at Camp Rincon, Calif.. ' 82 

San Gabriel River Basin, Calif.,

gaging-station records In........ 78-92

San Jacinto River near Elslnore, Calif. 70 

near San Jacinto, Calif.............. 69

San Joaquin River above Big Creek,

Calif............................ 186

below Frlant, Calif.................. 187

below Kerckhoff powerhouse, Calif....pi.1,B

discharge measurement of............. 3d4"

near Newman, Calif................... 188

near Vernalls, Calif................. 189

South Fork of, near Florence Lake,

Calif............................ 191

tributaries above Fresno River,

gaglng-statlon records on.......190-203

San Joaquin River Basin, Calif.,

gaging-station records in.......186-254

San Jose, Calif., Guadalupe Creek at... 161 

San Jose Creek (San Gabriel River

Basin) near Whlttier, Calif...... 89

San Jose Creek (directly tributary to 

Pacific Ocean) near Goleta, 

Calif............................ 126

San Jose Creek Basin, Calif., gagingstation record In................ 125

San Juan Capistrano, Calif., San Juan

Creek near....................... 34

Trabuco Creek near................... 35

San Juan Creek near San Juan Capiatrano,

Calif............................ 34

San Juan Creek Basin, Calif., gagingstation records in............... 34-35

San Lorenzo Creek near King City,

Calif............................ 150

San Lorenzo River at Big Trees, Calif.. 157 

San Lorenzo River Basin, Calif.,

gaging-station records In.......157-158

San Luls Rey River at Oceanslde, Calif. 27 

discharge measurements of............ 380

near Bengali, Calif.................. 26

near Mesa Grande, Calif.............. 25

San Luis Rey River Basin, Calif.,

gaging-station records in........ 25-27

San Mlguel, Calif., Nacimlento River

near............................. 148

San Tlmoteo Creek near Redlands, Calif. 62

San Vicente . .'eek near Foster, Calif... 23

near SantF Ynez, Calif............... 133

Santa Ann, ;alif., Santa Ana River at.. 46 

Santlag ~ reek at.................... 77

Santa Ana hiver at Auburndale Bridge,

near Corona, Calif............... 42

at Hamner Averiue, near Corona, Calif. 41 

at Santa Ana, Calif.................. 46

below Prado Dam, near Prado, Calif... 43 

discharge measurements of...........330-381

near Arlington, Calif................ 40

near Hentone, Calif.................. 37

near Prado, Calif.................... 44

near San Bernardino, Calif........... 39

Santa Ana River Basin, Calif., gagingstation records in............... 37-77

Santa Anita Creek near Sierra Madre,

Calif............................ 104

Santa Barbara, Calif., Santa Ynez

River near......................127,128

Santa Clara River near Saugus, Calif... 113 

Santa Clara River Basin, Calif.,

gaging-station records in.......113-118

Santa Cota Creek, Calif., discharge

measurements of.................. 382

Santa Cruz, Calif., Branclforte Creek

at............................... 158

Santa Cruz Creek near Santa Ynez,

Calif............................ 132

Santa Margarita, Calif., Sallnas River

near............................ 144,146

Santa Margarita River at Ysldora,

Calif............................ 51

near Fall Brook, Calif............... 30

Santa "Margarlto River Basin, Calif.,

gaging-station records in......». 28-33

Santa Maria, Calif., Cuyama River. ne.ar. 137 

Huasna River near.................... 139
390 INDEX

Page

Santa Maria River at Guadalupe, Calif.. 138 

Santa Maria River Basin, Calif.,

gaglng-atatlon records In.......137-140

Santa Paula Creek near Santa Paula,

Calif............................ 118

Santa Rosa Greek (Russian River Basin),

Calif., discharge measurement of. 384 

Santa Rosa Creek (Santa Ynez River

Basin), Calif., discharge measments of......................... 383

Santa Ynez, Calif., Santa Agueda Creek

near......... ................... 133

Santa Cruz Creek near................ 132

Santa Ynez River near................ 129

Santa Ynez River at Pine Canyon, near

Lompoc, Calif.................... 131

below Gibraltar Dam, near Santa

Barbara, Calif................... 128

discharge measurements of...........381-382

near Lompoc, Calif................... 130

near Monteclto, Calif................ 126

near Santa Barbara, Calif............ 127

near Santa Ynez, Calif............... 129

Santa Ynez River Basin, Calif., gaglngstatlon records In..............126-135

Santa Ysabel Creek near Mesa Grande,

Calif............................ 24

Santee, Calif., San Diego River near... 21-22 

Santiago Creek at Santa Ana, Calif..... 77

near Villa Park, Calif............... 76

Saratoga, Calif., Campbell Creek at.... 164

Saugus, Calif., Santa Clara River near. 113 

Savage Dam, Calif., Otay River at...... 20

Sawplt Creek near Monrovia, Calif...... 85

Scotia, Calif., Eel River at........... 356

Scott River near Port Jones, Calif..... 375

Second-feet per square mile, definition

of............................... 1

Second-foot, definition of............. 1

Second-foot-day, definition of......... 1

Sepulveda Dam, Calif., Los Angeles

River below...................... 93

Sespe Creek near Flllmore, Calif....... 116

Shaver Lake near Big Creek, Calif...... 199

Sierra City, Calif., North Fork of Yuba

River near........................ 310

Sierra Madre, Calif.,' Little Santa

Anita Creek near................. 105

Santa Anita Creek near............... 104

Silver Creek at Union Valley. Calif.... 335

near Placervllle, Calif.............. 336

South Fork of, near Ice Houae, Calif. 337 

Silver Fork. See American River, South

Fork of, Silver Fork of. 

Silver lake outlet near Klrkwood,

Calif............................ 329

seepage from, near Klrkwood, Calif... 330 

Slsquoc River, Calif., discharge measurements of...................... 383

near Gary, Calif..................... 140

Sloat, Calif., Middle Fork of Feather

River below...................... 299

Smartvllle, Calif., Deer Creek near.... 316

Smith River near Crescent City, Calif.. 379 

Smith River Basin, gaglng-statlon

record In........................ 379

Soledad, Calif., Arroyo Seco near...... 151

Somesbar, Calif., Klamath River at..... 365

Salmon River at...................... 376

South San Joaquln Canal near Knights

Ferry, Calif..................... 238

Southern California Edison Co.'s canal 

and Greens pot pipe line near 

Mentone, Calif................... 46-47

Southern California Edison Co.'s conduit near Claremont, Calif....... 75

Spanish Creek at Keddle, Calif......... 292

Sprague River, Oreg., discharge measurement of....................... 384

near Chlloquln, Oreg................. 367

Spreckels, Calif., Sallnas River near.. 147 

Spring Valley ditch near Yankee Hill,

Calif............................ 297

Sprlngvllle, Calif., North Fork of

Middle Pork of Tule River near... 176 

Pacific Gas & Electric Co. conduit

near............................. 178

Stage-discharge relation, definition of 1 

Stanislaus River at Rlpon, Calif....... 232

below Melones powerhouse, Calif...... 231

Page

Stanislaus River, Middle Fork of, at

Kennedy Meadows, Calif........... 228

at Sand Bar Plat, near Avery,

Calif............................ 229

North Pork of, near Avery, Calif..... 233

South Pork of, at Strawberry, Calif.. 234 

near Long Barn, Calif.............. 235

Stanislaus River Basin, Calif., gaglngstatlon records In..............228-239

Stevens Creek near Cupertlno, Calif.... 159

Stevens Creek Basin, Calif., gaglngstatlon record In................ 159

Stony Creek, Calif., discharge measurement of.......................... 384

near Hamilton City, Calif............ 282

Stony Creek Basin, Calif., gaglngstatlon record In................ 282

Storrle, Calif., Grizzly Creek near.... 294

Strawberry, Calif., Philadelphia Canal

near............................. 236

South Fork of Stanislaus River at.... 234

Strawberry Creek near Arrowhead Springs,

Calif............................ 55

Success, Calif., South Fork of Tule

River near....................... 179

Sunland, Calif., Tujunga Creek near.... 99

Sutter Creek, Calif., discharge measurement of....................... 384

Sweetwater River at Sweetwater Dam,

Calif............................ 20

Sweetwater River Basin, Calif., gaglngstatlon record In................ 20

Sycan River, Oreg., discharge measurement of.......................... 384

Tamarack Creek, Calif., Pitman Creek

below............................ 198

Tecate Creek, Calif., discharge measurements of...................... 380

Temecula, Calif., Murrleta Creek at.... 32 

Temecula Creek near.................. 28,29

Temecula Creek at Nigger Canyon, near

Temecula, Calif.................. 28

at Railroad Canyon, near Temecula,

Calif/........................... 29

Temescal Creek near Corona, Calif...... 72

Tenaya Creek near Yosemlte, Calif...... 212

Tepusquet Creek, discharge measurement

of............................... 383

Terms, definition of................... 1

Thomas Creek at Paskenta, Calif........ 279

Thomas Creek Basin, Calif., gaglngstatlon record In................ 279

Three Rivers, Calif., Kaweah River near 180

Tla Juana River near Dulzura, Calif.... 15 

near Nestor, Calif................... 16

Tla Juana River Basin, Calif., gaglngstatlon records In............... 13-18

Tiger Creek powerhouse conduit below

Salt Springs Dam, Calif.......... 248

Tllley Creek, Calif., Borel Canal at... 172

Time basis, explanation of............. 3-4

Topanga Creek near Topanga Beach,

Calif............................ Ill

Topanga Creek Basin, Calif., gaglngstatlon record In................ Ill

Trabuco Creek near San Juan Caplstrano,

Calif............................ 35

Tres Plnos Creek near Tres Plnos,

Calif............................ 155

Trinity River at Lewlston, Calif....... 377

near Hoopa, Calif.................... 378

Tujunga, Calif., Halnes Creek near..... 102

Tujunga Creek below Hansen Dam, Calif.. 100 

near Colby Ranch, Calif.............. 98

near-Sunland, Calif.................. 99

Tulare Lake In Kings County, Calif..... 175

Tulare Lake Basin, Calif., gaglngstation records in..............175-185

Tule River near Porterville, Calif..... 177

Middle Fork of, North Fork of, near

Springville, Calif............... 176

South Pork of, near Success, Calif... 179

Tuolumne Canal near Long Barn, Calif... 237

Tuolumne City, Calif., Tuolumne River

at............................... 218

Tuolumne River above La Grange Dam,

near La Grange, Calif............ 217

at Tuolumne City, Calif.............. 218

near Hetch Hetchy, Calif............. 215
INDEX 391

Tuolumne River, South Fork of, near

Oakland Recreation Camp, Calif... 223

Tuolumne River Basin, Calif., gagingstatlon records in..............214-227

Turloek Canal near La Grange, Calif.... 227

Twin Lakes outlet near Klrkwood, Calif. 332

Upland, Calif., Cucamonga Creek near... 68 

Upper Klamath Lake near Klamath Falls,

Oreg............................. 361

Union Valley, Calif., Silver Creek at.. 335 

Uvas Creek near Morgan Hill, Calif..... 154

Vade, Calif., Echo Lake flume near..... 327

Medley Lakes outlet near............. 328

Valley Springs, Calif., Cosgrove Creek

near............................. 241

Van Duzen River at Brldgevllle, Calif.. 359 

Ventura, Calif., Coyote Creek near..... 122

Venture River near................... 120

Ventura River near Ventura, Calif...... 120

Ventura River Basin, Calif., gagingstatlon records in..............119-122

Vermilion Valley, Calif., Bear Creek

near............................. 194

Mono Creek near...................... 195

Vernalls, Calif., San Joaquln River

near............................. 189

Verona, Calif., Sacramento River at.... 265

Villa Park, Calif., Santiago Creek near 76 

Vlna, Calif., Deer Creek near.......... 280

Ward tunnel at Intake, Calif........... 192

at outlet, Calif..................... 193

Warm Creek near Colton, Calif.......... 53-54

Waterman Canyon Creek near Arrowhead

Springs, Calif................... 56

West Point, Calif., Kiddle Fork of

Mokelumne River at............... 251

Salt Springs Reservoir near.......... 242

South Fork of Mokelumne River near... 252

Wheatland, Calif., Bear River near..... 318

Page 

Whitehall, Calif., Alder Creek near.... 334

Whlttler, Calif., San Jose Creek near.. 89 

Wllklns Slough, Calif., Sacramento

River below...................... 263

Wllllamson River below Sprague River,

near Chlloquin, Oreg............. 360

discharge measurement of............. 384

Villlow Creek below Crane Valley Reservoir, Calif...................... 201

Willow Creek School, Calif., San Benito

River near....................... 156

Winters, Calif., Putah Creek near...... 344

Woodbridge, Calif., Mokelumne River at. 247 

Woodbrldge Canal at.................. 253

Woodbridge Canal at Woodbrldge, Calif.. 253 

Woods Creek near Jacksonville, Calif... 225 

Work, division of...................... 12

scope of............................. 1

Yankee Hill, Calif., Concow Creek

near............................. 296

Spring Valley ditch near............. 297

West Branch of Feather River near.... 295

Ydalpom, Calif., Pit River near........ 269

Yolo, Calif., Cache Creek at........... 341

Yosemite, Calif., Merced River near...206,207 

Tenaya Creek near.................... 212

Yreka, Calif., Shasta River near....... 403

Ysldora, Calif., O'Nelll ditch near.... 33

Santa Margarita River at............. 31

Yuba River at Marysvllle, Calif........ 307

at Narrows Dam, Calif................ 306

Middle Fork of, above Oregon Creek,

Calif........................... 304-305

at Milton, Calif................... 303

North Fork of, below Goodyears Bar,

Calif............................ 311

near Sierra City, Calif............ 310

South Fork of, at Jones Bar, Calif... 312

o